CN116717941B

CN116717941B - Refrigerator with a refrigerator body

Info

Publication number: CN116717941B
Application number: CN202310621038.XA
Authority: CN
Inventors: 杨春; 张向平; 辛静
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2025-08-01
Anticipated expiration: 2043-05-29
Also published as: CN116717941A

Abstract

The present invention proposes a refrigerator, which includes a box body, a hinge assembly, and a door body; the hinge assembly includes a guide portion and a guide portion located at the end of the door body, a first hinge shaft, a second hinge shaft and a third hinge shaft fixed on the box body; the guide portion defines a straight guide trajectory line; the guide portion defines a closed loop guide trajectory line, and the guide trajectory line surrounds the guide trajectory line; the second hinge shaft, the first hinge shaft, and the third hinge shaft are successively away from the side wall of the first body; relative to the plane where the take-and-release port is located, the first hinge shaft, the second hinge shaft and the third hinge shaft are close to the front wall of the door when the door body is closed; in the process of opening the door body from a closed state, the first hinge shaft moves linearly along the guide trajectory line relative to the guide portion, the second hinge shaft and the third hinge shaft both move relative to the guide portion, the door body opens the take-and-release port and moves a certain distance laterally; the refrigerator of the present invention enables the door body to generate a certain displacement in the lateral direction when it is opened, so that the door body meets the application requirements.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to the technical field of household appliances, in particular to a refrigerator.

Background

The door body of the refrigerator is connected with the refrigerator body through the hinge assembly, and the hinge assembly enables the door body of the refrigerator to be rotatably connected to the refrigerator body, so that the taking and placing opening of the refrigerator body of the refrigerator is opened or closed. Under a specific use scene or structure setting, the door body needs to generate certain displacement in the transverse direction in the opening process, namely, the door body needs to move inwards or outwards for a certain distance in the opening process so as to meet application requirements.

Disclosure of Invention

The present invention solves at least one of the technical problems in the related art to a certain extent.

To this end, the present application is directed to a refrigerator having a hinge structure such that a door body is displaced in a lateral direction when opened.

The refrigerator according to the present application includes:

a case defining a storage compartment having a access opening and having a first body side wall and a second body side wall disposed opposite to each other;

the door body is connected with the box body through a hinge assembly to open or close the access opening, and is provided with a door front wall which is far away from the box body when the door body is closed, and a door side wall which is connected with the door front wall and is close to the hinge assembly;

the hinge assembly includes:

The first hinge shaft, the second hinge shaft and the third hinge shaft are fixed on the box body and are close to the first body side wall, and the second hinge shaft, the first hinge shaft and the third hinge shaft are sequentially far away from the first body side wall;

The door comprises a door body, a guide part and a guide part, wherein the guide part is positioned at the end part of the door body and is close to the side wall of the door, the guide part defines a linear guide track line, and the guide part defines a closed annular guide track line;

wherein the arrangement direction of the first body side wall and the second body side wall is defined as a transverse direction;

In the process of opening the door body from the closed state, the first hinge shaft moves linearly relative to the guide part along the guide track line, the second hinge shaft and the third hinge shaft both move relative to the guide part, and the door body opens the taking and placing opening and moves a certain distance along the transverse direction.

In some embodiments of the refrigerator, the end part of the door body is recessed towards one side of the inner cavity of the door body near the door side wall to form a mounting table;

the door body is provided with a door corner, and the door corner is provided with a top plate and a side plate forming a part of a side wall of the door;

The first hinge shaft, the second hinge shaft and the third hinge shaft are fixedly connected with the box body through hinge plates, one side of each hinge plate, which is close to the side wall of the first body, is provided with an avoidance opening, and one end, which is far away from the picking and placing opening, of each hinge plate is accommodated in the accommodating space;

the first hinge shaft, the second hinge shaft and the third hinge shaft are positioned on one side of the avoidance opening, which is far away from the picking and placing opening.

In some embodiments of the refrigerator of the present application, the central axis of the first hinge shaft is denoted as a first central axis I, the central axis of the second hinge shaft is denoted as a second central axis E, and the central axis of the third hinge shaft is denoted as a third central axis F;

In the projection of the plane where the top wall of the box body is located, the first central axis I, the second central axis E and the third central axis F form an axis triangle IEF, wherein the axis triangle IEF is an obtuse triangle, and an included angle formed by a side IF and a side IE in the axis triangle IEF takes the vertex I as a vertex and takes an obtuse angle.

In some embodiments of the refrigerator according to the present application, the angle of the included angle formed by the edge IF and the edge IE in the axis triangle IEF with the vertex I as the vertex belongs to any value of 172 ° to 178 °.

In some embodiments of the refrigerator according to the present application, in the projection of the plane of the top wall of the refrigerator body, the longest edge EF of the axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the pick-and-place port.

In some embodiments of the refrigerator of the present application, in a projection of a plane where the top wall of the refrigerator body is located, a straight line IE where the first central axis I and the second central axis E are located is parallel to the pick-and-place opening, and the third central axis F is located at a side of the straight line IE where the first central axis I and the second central axis E are located, which is far away from the pick-and-place opening.

In some embodiments of the refrigerator of the present application, the guide track line is parallel to the door front wall, and the first hinge shaft moves in a direction parallel to the door front wall with respect to the door body during the opening of the door body.

In some embodiments of the refrigerator of the present application, the centroid of the guide track line is denoted as guide centroid O, the guide track line encircling its guide centroid O;

The guide track line comprises a first guide section K1, a second guide section K2, a third guide section K3, a fourth guide section K4, a fifth guide section K5 and a sixth guide section K6 which are connected end to end in sequence, wherein the first guide section K1, the second guide section K2, the third guide section K3, the fourth guide section K4 and the fifth guide section K5 are all protruded in the direction away from the guide centroid O, and the sixth guide section K6 is protruded in the direction close to the guide centroid O so as to enable the smooth transition connection between the fifth connection position e and the first connection position a;

the connection points of the first guide section K1, the second guide section K2, the third guide section K3, the fourth guide section K4 and the fifth guide section K5 which are sequentially connected are sequentially marked as a second connection position b, a third connection position c, a fourth connection position d, a fifth connection position e and a sixth connection position f;

In the projection of the plane of the front wall of the door, the second connecting position b, the first connecting position a, the sixth connecting position f, the third connecting position c, the fifth connecting position e and the fourth connecting position d are sequentially far away from the side wall of the door;

In the projection of the plane of the door side wall, the third connecting position c, the second connecting position b, the fourth connecting position d, the first connecting position a, the sixth connecting position f and the fifth connecting position e are sequentially far away from the door front wall.

In some embodiments of the refrigerator of the present application, a plane passing through the center of mass of the door body and parallel to the door front wall is denoted as a center of mass plane P;

In the process that the door body is opened to an angle G' 1 from a closed state, the mass center plane P is positioned at one side of the first hinge shaft, the second hinge shaft and the third hinge shaft, which is far away from the front wall of the door;

In the process that the door body is opened to a maximum angle Gmax which can be achieved by the door body from an angle G' 1, a mass center plane P is positioned between the first hinge shaft and the third hinge shaft and is positioned at one side of the first hinge shaft away from the second hinge shaft;

wherein G' 1:Gmax is any value of 0.8-1.

In some embodiments of the refrigerator of the present application, the door body has a door rear wall disposed opposite to the door front wall, the door rear wall intersecting the door side wall to form a second side edge N;

The door seal is attached to the front end face of the box body surrounding the picking and placing opening when the door body is closed, and comprises a side seal edge H which is close to the side wall of the door and far away from the front wall of the door;

In the projection of the plane of the top wall of the box body, the second side edge N is positioned at one side of the side sealing edge H close to the side wall of the first body in the process that the door body is opened to an angle G0 from a closed state;

In the process that the door body is opened from the angle G0 to the maximum angle Gmax which can be reached by the door body, the second side edge N is positioned at one side of the side sealing edge H away from the side wall of the first body.

Compared with the prior art, the invention has the advantages and positive effects that:

The invention provides a refrigerator which comprises a refrigerator body, a hinge assembly and a door body, wherein the hinge assembly comprises a guide part and a guide part which are positioned at the end part of the door body, a first hinge shaft, a second hinge shaft and a third hinge shaft which are fixed on the refrigerator body, the guide part defines a linear guide track line, the guide part defines a closed annular guide track line, the guide track line surrounds the guide track line, the second hinge shaft, the first hinge shaft and the third hinge shaft are sequentially far away from the side wall of the first body, the first hinge shaft, the second hinge shaft and the third hinge shaft are relatively far away from the plane where the taking and placing opening is positioned, the first hinge shaft, the second hinge shaft and the third hinge shaft are relatively close to the front wall of the door body when the door body is closed, the first hinge shaft relatively moves along the guide track line in a linear mode when the door body is opened in a closed state, and the second hinge shaft and the third hinge shaft relatively move along the guide part, and the door body is opened to the taking and placing opening and transversely move a certain distance.

Drawings

Fig. 1 is a perspective view of a refrigerator according to a first embodiment of the present invention;

Fig. 2 is a top view of a first embodiment of the refrigerator of the present invention;

FIG. 3 is a partial schematic view of the first hinge member and the second hinge member mated when the door of FIG. 2 is closed;

Fig. 4 is a schematic structural view of a first hinge member in a first embodiment of the refrigerator of the present invention;

Fig. 5 is a schematic view showing a structure of a refrigerator according to another aspect of the first hinge member in the first embodiment of the present invention;

FIG. 6 is a schematic view showing the relative positions of the door and the connecting area of the refrigerator body when the door is closed according to the first embodiment of the present invention;

FIG. 7 is a schematic view showing the relative positions of the door and the connecting area of the refrigerator body when the door is opened to a maximum angle in accordance with the first embodiment of the present invention;

Fig. 8 is a view at a hinge assembly when a door body is opened to phi=0° in the first embodiment of the refrigerator of the present invention;

fig. 9 is a view at a hinge assembly when a door body is opened to phi=g1 in the first embodiment of the refrigerator of the present invention;

fig. 10 is a view at a hinge assembly when a door body is opened to phi=g2 in the first embodiment of the refrigerator of the present invention;

fig. 11 is a view at a hinge assembly when a door body is opened to phi=g3 in the first embodiment of the refrigerator of the present invention;

fig. 12 is a view at a hinge assembly when a door body is opened to phi=g4 in the first embodiment of the refrigerator of the present invention;

fig. 13 is a view at a hinge assembly when a door body is opened to phi=g5 in the first embodiment of the refrigerator of the present invention;

fig. 14 is a view at a hinge assembly when a door body is opened to phi=g6 in the first embodiment of the refrigerator of the present invention;

fig. 15 is a view at a hinge assembly when a door body is opened to phi=g7 in the first embodiment of the refrigerator of the present invention;

fig. 16 is a view at a hinge assembly when a door body is opened to phi=g8 in the first embodiment of the refrigerator of the present invention;

fig. 17 is a view at a hinge assembly when a door body is opened to phi=g9 in the first embodiment of the refrigerator of the present invention;

fig. 18 is a view at a hinge assembly when a door body is opened to phi=g10 in the first embodiment of the refrigerator of the present invention;

Fig. 19 is a view at a hinge assembly when a door body is opened to phi=g11 in the first embodiment of the refrigerator of the present invention;

FIG. 20 is a schematic view showing movement of a first side edge, a second side edge and a side seal edge during opening of a door in accordance with an embodiment of the present invention;

Fig. 21 is a schematic view showing positions of a first hinge shaft relative to a guide part, a second hinge shaft and second and third hinge shaft relative to the guide part when the door is opened to different angles in a process of opening the door from a closed state to a fourth angle G4 in a first embodiment of the refrigerator of the present invention;

Fig. 22 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and a third hinge shaft relative to a guide portion when the door is opened to different angles in a process of opening the door from a fourth angle G4 to an eleventh angle G11 in the first embodiment of the refrigerator of the present invention;

Fig. 23 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=g1 in the first embodiment of the refrigerator of the present invention;

fig. 24 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g2 in the first embodiment of the refrigerator of the present invention;

fig. 25 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g3 in the first embodiment of the refrigerator of the present invention;

fig. 26 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g4 in the first embodiment of the refrigerator of the present invention;

fig. 27 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=g5 in a first embodiment of the refrigerator of the present invention;

fig. 28 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g6 in the first embodiment of the refrigerator of the present invention;

fig. 29 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g7 in the first embodiment of the refrigerator of the present invention;

fig. 30 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=g8 in a first embodiment of the refrigerator of the present invention;

Fig. 31 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g9 in the first embodiment of the refrigerator of the present invention;

Fig. 32 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g10 in the first embodiment of the refrigerator of the present invention;

fig. 33 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=g11 in the first embodiment of the refrigerator of the present invention;

FIG. 34 is a schematic view showing the relative positions of a door and a cabinet when the door is closed in the first embodiment of the refrigerator according to the present invention;

FIG. 35 is a schematic view showing the relative positions of the door and the case when the door is opened at an angle smaller than the fourth angle G4 in the first embodiment of the refrigerator according to the present invention;

FIG. 36 is a schematic diagram showing the relative positions of the door and the case when the door is opened at an angle greater than the fourth angle G4 and less than 90 DEG in the first embodiment of the refrigerator according to the present invention;

FIG. 37 is a schematic view showing the relative positions of a door and a cabinet when the door is opened at 90 degrees in the first embodiment of the refrigerator according to the present invention;

fig. 38 is a schematic diagram showing the relative positions of the door and the case when the door is opened at an angle greater than 90 ° and less than the eleventh angle G11 in the first embodiment of the refrigerator of the present invention;

fig. 39 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door body is opened to G1 and the door body is rotated from a closed state to G1 about a first central axis I when the door body is closed;

fig. 40 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G2 and the door is opened to G1, and rotated to G2 with a first central axis I as a rotation axis when the door is opened to G1;

Fig. 41 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G3 and the door is opened to G2, and the door is rotated to G3 with a first central axis I as a rotation axis when the door is opened to G2;

Fig. 42 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G4 and the door is opened to G3, and the door is rotated to G4 with a first central axis I as a rotation axis when the door is opened to G3;

fig. 43 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G5 and the door is opened to G4, and the door is rotated to G5 with a first central axis I as a rotation axis when the door is opened to G4;

Fig. 44 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G6 and the door is opened to G5, and rotated to G2 with a first central axis I as a rotation axis when the door is opened to G5;

fig. 45 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G7 and the door is opened to G6, and rotated to G2 with a first central axis I as a rotation axis when the door is opened to G6;

fig. 46 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which the door is opened to G8 and the door is opened to G7, and the door is rotated to G3 with the first central axis I as the rotation axis when the door is opened to G7;

fig. 47 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G9 and the door is opened to G8, and rotated to G4 with a first central axis I as a rotation axis when the door is opened to G8;

Fig. 48 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to G10 and the door is opened to G9, and rotated to G5 with a first central axis I as a rotation axis when the door is opened to G9;

fig. 49 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which the door is opened to G11 and the door is opened to G10, and the door is rotated to Gmax about the first central axis I when the door is opened to G10;

fig. 50 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=0° in a second embodiment of the refrigerator of the present invention;

Fig. 51 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=q1 in a second embodiment of the refrigerator of the present invention;

Fig. 52 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=q2 in a second embodiment of the refrigerator of the present invention;

Fig. 53 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=q3 in a second embodiment of the refrigerator of the present invention;

fig. 54 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=q4 in a second embodiment of the refrigerator of the present invention;

Fig. 55 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=q5 in a second embodiment of the refrigerator of the present invention;

Fig. 56 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=q6 in the second embodiment of the refrigerator of the present invention;

Fig. 57 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when a door body is opened to phi=g6' in a second embodiment of the refrigerator of the present invention;

Fig. 58 is a schematic view showing positions of the first hinge shaft relative to the guide portion, the second hinge shaft and the second and third hinge shaft relative to the guide portion when the door body is opened to phi=q7 in the second embodiment of the refrigerator of the present invention;

Fig. 59 is a schematic view showing positions of a first hinge shaft relative to a guide portion, a second hinge shaft and second and third hinge shaft relative to guide portions when the door is opened to different angles in a second embodiment of the refrigerator according to the present invention in a process of opening the door from a closed state to Q7;

FIG. 60 is a schematic diagram showing the relative positions of the door and the cabinet when the door is opened at an angle smaller than Q2 in the first embodiment of the refrigerator of the present invention;

FIG. 61 is a schematic diagram showing the relative positions of a door and a refrigerator body when the door is opened at an angle of more than Q2 and less than 90 DEG in the first embodiment of the refrigerator of the present invention;

FIG. 62 is a schematic diagram showing the relative positions of a door and a cabinet when the door is opened at 90 degrees in the first embodiment of the refrigerator according to the present invention;

FIG. 63 is a schematic diagram showing the relative positions of a door and a refrigerator body when the door is opened at an angle greater than 90 DEG and less than Q7 in the first embodiment of the refrigerator of the present invention;

Fig. 64 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door body is opened to Q1 and the door body is rotated from a closed state to G1 about a first central axis I when the door body is closed;

fig. 65 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to Q2 and the door is opened to Q1, and rotated to G2 with a first central axis I as a rotation axis when the door is opened to Q1;

Fig. 66 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to Q3 and the door is opened to Q2, and rotated to G3 with a first central axis I as a rotation axis when the door is opened to Q2;

fig. 67 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to Q4 and the door is opened to Q3, and rotated to G4 with a first central axis I as a rotation axis when the door is opened to Q3;

fig. 68 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to Q5 and the door is opened to Q4, and rotated to G5 with a first central axis I as a rotation axis when the door is opened to Q4;

Fig. 69 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which the door is opened to Q6 and the door is opened to Q5, and rotated to G2 with the first central axis I as the rotation axis when the door is opened to Q5;

FIG. 70 is a diagram showing the position of the door when the door is opened to Q6' and the position of the door when the door is opened to Q6 and rotated to G2 with the first center axis I as the rotation axis when the door is opened to Q6 according to the first embodiment of the present invention;

fig. 71 is a position comparison diagram of a refrigerator according to an embodiment of the present invention, in which a door is opened to Q7 and the door is opened to Q6, and rotated to G2 with a first central axis I as a rotation axis when the door is opened to Q6;

fig. 72 is a perspective view of a refrigerator according to a third embodiment of the present invention;

Fig. 73 is a top view of a third embodiment of the refrigerator of the present invention;

FIG. 74 is a schematic view of a portion of the door of FIG. 73 in a closed position where the two opposing doors mate;

FIG. 75 is a schematic view showing the cooperation of two side sealing strips in the closed state of the three-door body of the refrigerator according to the embodiment of the present invention;

FIG. 76 is a schematic view showing the relative positions of two side seal bars when the three door body of the refrigerator according to the embodiment of the present invention is opened;

fig. 77 is a top view of a fourth refrigerator opposite a cabinet according to an embodiment of the present invention;

Fig. 78 is a perspective view of a refrigerator in a fifth embodiment of the present invention;

FIG. 79 is a schematic view showing the relative positions of the turn beam and another view of the cabinet when the door is opened in the fifth embodiment of the refrigerator according to the present invention;

FIG. 80 is a top view of a refrigerator in a fifth embodiment of the present invention;

FIG. 81 is a schematic view showing the relative positions of a door, a guide block and a guide groove when the door is closed to GS in a fifth embodiment of the refrigerator according to the present invention;

FIG. 82 is a schematic diagram showing the relative positions of the door, guide block and guide slot when the door is closed to GF in a fifth embodiment of the refrigerator according to the present invention;

FIG. 83 is a schematic view showing an exploded construction of a mounting block and a door body end in a fifth embodiment of the refrigerator according to the present invention;

FIG. 84 is a schematic view showing the structure of the first engaging portion and the second engaging portion when the door is closed in the fifth embodiment of the refrigerator according to the present invention;

FIG. 85 is a schematic view showing a structure of a fifth embodiment of the refrigerator according to the present invention when the door is closed from an open state to a state in which the first engaging portion contacts with the second engaging portion;

FIG. 86 is a schematic view showing a structure of a fifth embodiment of the refrigerator according to the present invention, in which the door is opened and closed until the first engaging portion and the second engaging portion interact to maximize elastic deformation of the second engaging portion;

Fig. 87 is a top view of a refrigerator opposite a cabinet in a sixth embodiment of the refrigerator of the present invention.

The case 10 is shown in the above figures; a cabinet 100; a door body 30; door front wall 31, door side wall 32, door rear wall 33, first side edge W, second side edge N, receiving slot 37, door end cover 38, centroid plane P, door seal 5, side seal H, hinge plate 40, connecting portion 401, extension 402, stop 403, hooking gap 404, first extension plate 4021, second extension plate 4022, first hinge shaft 41, second hinge shaft 42, third hinge shaft 43, first center shaft I, second center shaft E, third center shaft F, guide 50, guide track line S, first guide position I1, second guide position I2, third guide position I3, fourth guide position I4, fifth guide position I5, sixth guide position I6, guide 60, guide track line K, first guide section K1, second guide section K2, third guide section K3, fourth guide section K4, fifth guide section K5, sixth guide section K6, seventh guide section K7, first connection position a, second connection position b, third connection position I2, third guide position I3, fourth guide position I4, guide track line K1, second guide section K5, sixth guide section K6, seventh guide section K7, seventh connection position a, third connection position b, third connection position c, guide rail 71, side plate 82, guide rail 71, side edge portion, side plate connection portion, and side plate connection portion, guide rail portion, side plate connection portion, and side frame connection portion.

Detailed Description

The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more such feature.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, or indirectly connected through an intermediary, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, the side of the refrigerator facing the user in use is defined as the front side, and the opposite side is defined as the rear side.

Example 1

Referring to fig. 1 to 5, the refrigerator includes a cabinet 10 having a storage compartment, a door 30 connected to the cabinet 10 to open and close the storage compartment, and a refrigerating device to supply cold air to the storage compartment. The case 10 includes a liner defining a storage chamber, a housing coupled to an outer side of the liner to form an external appearance of the refrigerator, and a heat insulating layer disposed between the liner and the housing to insulate the storage chamber.

The case 10 defines a plurality of storage compartments. In the present embodiment, the plurality of storage compartments include a refrigerating compartment and a freezing compartment located below the refrigerating compartment, and it should be noted that the arrangement of the plurality of storage compartments of the refrigerator is not limited to the above exemplary description.

The front end of the storage chamber is formed with a taking-and-placing opening to place food into or take food out of the storage chamber, and the case 10 is provided with a rotatable door 30 to open or close the taking-and-placing opening of the storage chamber. Specifically, the door 30 is rotatably coupled to the case 10 by a hinge assembly at an upper portion and a hinge assembly at a lower portion to open or close the access opening.

Specifically, in this embodiment, the case 10 includes first and second oppositely disposed body side walls (i.e., left and right side walls of the case 10), wherein the door 30 has a door front wall 31 remote from the case 10 when the door 30 is closed, a door rear wall 33 disposed opposite the door front wall 31, and a door side wall 32 adjacent to the hinge assembly and connected to the door front wall 31. The arrangement direction of the first body side wall and the second body side wall is defined as transverse, namely, the direction from the first body side wall to the second body side wall or the direction from the second body side wall to the first body side wall is transverse, and the normal direction of the first body side wall is also equal to the transverse direction.

Wherein, the door front wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W, and the door side wall 32 intersects with the door rear wall 33 to form a second side wall N. When the door 30 is closed, the first side edge W is located on a side of the second side edge N away from the case 10. It should be noted that, the intersection line of the door front wall 31 and the door side wall 32 is a theoretical first side edge W (similarly, the theoretical second side edge N is an intersection line of the door side wall 32 and the door rear wall 33), and the intersection of the door front wall 31 and the door side wall 32 is a rounded transition in the actual manufacturing process, so that a curved surface is formed at the intersection of the door front wall 31 and the door side wall 32, and any straight line extending in the height direction of the door body 30 may represent the first side edge W (the same applies to the second side edge N) on the curved surface at the intersection of the door front wall 31 and the door side wall 32. For convenience of description, the first side edge W and the second side edge N are described in theory, so as to illustrate the movement trend of the first side edge W or the second side edge N during the opening process of the door body 30. In addition, the plane passing through the centroid of the door body 30 and parallel to the door front wall 31 is denoted as the centroid plane P, which remains stationary relative to the door body 30 as the door body 30 moves during opening of the door body 30. In the present embodiment, the centroid plane P determined with the geometric center of the door body 30 as the centroid is described.

The door seal 5 is arranged on the rear wall of the door body 30, and when the door body 30 is closed, the door seal 5 is attached to the front end face of the box body surrounding the taking and placing opening so as to effectively seal the joint of the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the taking and placing opening and avoiding the overflow of cold air. The door seal 5 may be provided in the form of a ring, the door seal 5 comprising a side seal adjacent the door side wall 32, the edge of the door seal 5 (side seal) adjacent the door side wall 32 and remote from the door front wall 31 being denoted as side seal edge H.

The hinge assembly includes a first hinge member and a second hinge member, the first hinge member being mated with the second hinge member and capable of relative rotation. The first hinge member is disposed on the case 10 and near the first body sidewall, and the second hinge member is disposed at an end of the door 30 near the first hinge member, and the first hinge member is matched with the second hinge member to allow the case 10 to rotate relative to the door 30. The second hinge member is close to the door side wall 32 of the door body 30, for example, the right side surface of the door body 30 is the door side wall 32 when the first hinge member is positioned on the right side of the case body 10, and the left side surface of the door body 30 is the door side wall 32 when the first hinge member is positioned on the left side of the case body 10.

Referring to fig. 3 to 5, the first hinge member includes a hinge plate 40, a plurality of hinge shafts formed on the hinge plate 40. Specifically, the hinge plate 40 includes a connection portion 401 connected to the case 10, and an extension portion 402 extending forward from the connection portion 401 and having a horizontal plate shape. The connection portion 401 may be fastened to the top wall of the case 10 by fasteners such as screws, pins, and bolts. Specifically, for the hinge at the upper end of the door 30, the connection portion 401 is connected to the top wall of the case 10. The hinge at the lower end of the door 30 is connected to the front end surface of the case 10 at a connecting portion 401. The extension part 402 of the first hinge member is formed with a first hinge shaft 41, a second hinge shaft 42 and a third hinge shaft 43, wherein the second hinge shaft 42 is located at a side of the first hinge shaft 41 near the first body sidewall, and the third hinge shaft 43 is located at a side of the first hinge shaft 41 far from the first body sidewall.

The second hinge member includes a guide portion 50 and a guide portion 60 at an end of the door body 30 near the first hinge member, wherein the first hinge shaft 41 is adapted to the guide portion 50, the second hinge shaft 42 and the third hinge shaft 43 are adapted to the guide portion 60, and the first hinge shaft 41 moves relative to the guide portion 50 and the second hinge shaft 42 and the third hinge shaft 43 move relative to the guide portion 60 during a rotation of the door body 30 to open or close.

In the present embodiment, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are formed on an extension 402 connected to the case 10 through a connection part 401 to form a limiting shaft for guiding the movement of the door 30. Specifically, the first, second and third hinge shafts 41, 42 and 43 extend in a vertical direction (a height direction of the case 10) to be adapted to the guide portion 50 or 60 provided on the door body 30.

In this embodiment, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are disposed on the extending portions 402 at the upper and lower ends of the door body 30, and the guide portions 50 and 60 are disposed at the upper and lower ends of the door body 30. It should be noted that, the arrangement of the present embodiment is not limited by the arrangement of the upper and lower ends of the door 30, and the door 30 and the case 10 are connected according to the need.

In this embodiment, as shown in fig. 3, a plane on the side surface (first body side wall) of the case 10 close to the hinge plate 40 is defined as a reference plane M0, and a side of the reference plane M0 away from the storage chamber cavity is defined as an outer side, while a side of the reference plane M0 close to the storage chamber cavity is defined as an inner side. As shown in fig. 5, in some embodiments of the present application, in the projection of the plane of the top wall of the case 10, the line where the central axis of the first hinge shaft 41 and the central axis of the second hinge shaft 42 are located is perpendicular to the first body side wall, that is, in the projection of the plane of the top wall of the case 10, the line where the central axis of the first hinge shaft 41 and the central axis of the second hinge shaft 42 are located is parallel to the plane of the access opening, so that the positioning of the hinge shaft is detectable, and the processing precision is ensured, thereby ensuring the assembly precision and increasing the smoothness of the door 30 rotating and opening.

In the present embodiment, a trajectory in which the guide 50 guides the relative movement of the center axis of the first hinge shaft 41 is denoted as a guide trajectory S, a trajectory in which the guide 60 guides the relative movement of the second hinge shaft 42 is denoted as a guide trajectory K, a centroid of the guide trajectory K is denoted as a guide centroid O, and the guide trajectory K surrounds the guide centroid O thereof in the present embodiment. In this embodiment, the guide trace S is linear and the guide trace K is annular, that is, the guide portion 50 guides the first hinge shaft 41 to move during the opening of the door body 30, so that the center axis of the first hinge shaft 41 moves linearly along the guide trace S. In some embodiments of the present application, the guide track S is parallel to the plane of the access opening when the door 30 is closed. As an arrangement, the guide track line S is a straight line parallel to the door front wall 31, and the first hinge shaft 41 moves relative to the door body 30 in a direction parallel to the door front wall during the opening of the door body 30, that is, the first hinge shaft 41 moves relative to the door body 30 in a direction perpendicular to the door side wall 32, so that the displacement of the door body 30 in the direction perpendicular to the door side wall 32 is effectively controlled.

Wherein the guide track line K surrounds the guide track line S. In the projection of the plane of the top wall of the case 10, the guide track line K surrounds the first hinge axis 41, the second hinge axis 42 and the third hinge axis 43.

As one possible arrangement, the guide portion 50 is provided as a guide groove, the guide portion 60 is provided as a guide groove, and the center trajectory line of the guide groove is denoted as a guide trajectory line S. The guide groove is a ring-shaped closed groove, and the groove wall of the guide groove is ring-shaped so as to limit a closed ring-shaped guide track line K. That is, in the projection of the plane of the top wall of the case 10, the groove wall of the guide groove surrounds the guide groove, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43. The first hinge shaft 41 moves linearly with respect to the guide groove during the opening of the door body 30, and the second hinge shaft 42 and the third hinge shaft 43 move with respect to the guide groove, respectively, so that the door body 30 has a certain displacement in the lateral direction during the opening.

The guide 60 defines a closed loop guide track line in the present invention. The guide groove can be an annular closed groove. The annular guide part 60 has high strength, good workability and good machining precision, the annular arrangement form ensures excellent detectability of the guide part 60 and precision, and the annular guide part 60 has good deformation resistance and effectively ensures the precision. The combination of the linear guide 50, the first hinge shaft 41 fixed to the case 10, and the linear guide 50, and the second hinge shaft 42 and the third hinge shaft 43, and the guide 60, can precisely control the movement of the door 30, so that the door 30 is displaced by a certain distance in the lateral direction to meet the requirements of various applications, and the stability of the movement of the door 30 is increased, improving the user experience.

In some embodiments of the present application, the guide groove is a straight groove, and the extending direction of the guide groove is parallel to the door sidewall 32 to increase the detectability of the guide portion 50, thereby ensuring the processing accuracy. In the present embodiment, the guide groove is exemplified as a linear groove parallel to the door side wall 32.

Referring to fig. 6 to 7, in some embodiments of the present application, an end of the door body 30 adjacent to the door sidewall 32 is recessed toward a side adjacent to the inner cavity of the door body 30 to form a mounting table, and the second hinge member (the guide part 50 and the guide part 60) is provided on the mounting table.

As an alternative, the extension 402 of the hinge plate 40 includes a first extension plate 4021 and a second extension plate 4022, wherein one end of the first extension plate 4021 is connected to the connection 401, and the other end is connected to the second extension plate 4022. The first extension plate 4021 has a first edge adjacent the first body sidewall. The first edge extends obliquely in a direction away from the first body side wall in a direction directed toward the second extending plate 4022 by the connecting portion 401. The second extension panel 4022 has a second edge adjacent to the side of the access opening. The first and second edges are joined to define a relief opening on a side of the extension 402 adjacent the first body side wall. The open end of the relief opening faces the first body sidewall. When the door body 30 is opened, the avoidance opening allows the portion of the door body 30 close to the door side wall 32 to gradually enter the avoidance opening, so that the door body 30 is ensured not to interfere with the extension portion 402 when being opened, and the door body 30 can be opened to a larger angle.

Alternatively, the door body 30 has a door corner 7 adjacent the door sidewall 32, the door corner 7 having a top panel 71 and a side panel 72 forming a portion of the door sidewall 32. The top plate 71, the side plates 72 and the mounting table together define the accommodation space 70. When the door 30 is closed, the extension 402 of the first hinge member is at least partially received in the receiving space 70 to cooperate with the second hinge member. The door corner 7 shields the extension part 402 of the second hinge piece and the first hinge piece when the door body 30 is closed, so that dust fall-in is reduced, and the smoothness of the matching of the hinge components is effectively ensured. The above arrangement of the avoidance opening prevents the door body 30 (the side plate 72 of the door corner 7 or the area of the door front wall 31 near the first side edge W) from interfering with the extension portion 402 when the door body 30 is opened, and effectively ensures that the door body 30 can be opened to a larger angle.

In some embodiments of the present application, the guide 50 is adjacent to the door front wall 31 relative to the plane of the access opening when the door 30 is closed. The first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are disposed at an end of the extension 402 away from the access opening. The first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 may be disposed on the second extension plate 4022, so that the extension part 402 has enough space to provide an avoidance opening, so as to avoid interference when the door 30 is opened, and further ensure an opening angle of the door 30. On the other hand, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are disposed on the second extension plate 4022 far from the picking and placing port, and apply a force to a position of the door body 30 close to the door front wall 31 when the door body is in the closed state, and in cooperation with the force of the hinge plate 40, the overall supporting effect of the first hinge member on the door body 30 is increased, so that the door body 30 is prevented from being deformed and displaced due to sinking of the door body 30 under the action of gravity.

As an arrangement, when the door body 30 is closed, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are located at a side of the centroid plane P near the door front wall 31.

As an alternative, the distance between the second hinge shaft 42 and the first hinge shaft 41 is smaller than the distance between the first hinge shaft 41 and the third hinge shaft 43. As an alternative, the third hinge shaft 43 is located at a side of the first hinge shaft 41 and the second hinge shaft 42 away from the access opening.

In some embodiments of the present application, as shown in fig. 3, the guide track line K includes a first guide section K1, a second guide section K2, a third guide section K3, a fourth guide section K4, a fifth guide section K5, and a sixth guide section K6 that are sequentially connected end to end, i.e., the guide track line K is in a closed ring shape, and the guide slot is a ring-shaped closed slot, so as to effectively limit the movement of the second hinge shaft 42 and the third hinge shaft 43, and simultaneously prevent the second hinge shaft 42 and the third hinge shaft 43 from being separated from the guide slot. The connection point of the sixth guiding segment K6 and the first guiding segment K1 is denoted as a first connection position a, the connection point of the first guiding segment K1 and the second guiding segment K2 is denoted as a second connection position b, the connection point of the second guiding segment K2 and the third guiding segment K3 is denoted as a third connection position c, the connection point of the third guiding segment K3 and the fourth guiding segment K4 is denoted as a fourth connection position d, the connection point of the fourth guiding segment K4 and the fifth guiding segment K5 is denoted as a fifth connection position e, and the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as a sixth connection position f.

As an alternative, the second hinge shaft 42 is engaged with the first connection position a of the guide slot when the door 30 is closed. I.e., the door 30 is closed, the second hinge shaft 42 is positioned at the first connection position a.

Wherein the second connection location b is located at one side of the first connection location a near the door side wall 32 and the door front wall 31;

The third connecting position c is positioned at one side of the second connecting position b, which is close to the door front wall 31 and far from the door side wall 32;

The fourth connection location d is located on a side of the third connection location c near the door rear wall 33 and away from the door side wall 32, and the fourth connection location d is located on a side of the second connection location b near the door rear wall 33. In the present embodiment, the fourth connection location d is located at a side of the first connection location a near the door front wall 31.

The fifth connection location e is located on the side of the fourth connection location d near the door rear wall 33 and the door side wall 32. In the present embodiment, the fifth connection position e is located on the side of the first connection position a near the door rear wall 33 and far from the door side wall 32, and the fifth connection position e is located on the side of the third connection position c far from the door side wall 32.

The sixth connection location f is located on the side of the fifth connection location e near the door front wall 31 and the door side wall 32. In the present embodiment, the sixth connection position f is located on the side of the first connection position a near the door rear wall 33 and far from the door side wall 32. As an alternative, the sixth connection point f is located on the side of the third connection point c adjacent to the door side wall 32.

That is, in the projection of the plane of the door front wall 31, the second connection position b, the first connection position a, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are sequentially apart from the door side wall 32.

In the projection of the plane of the door side wall 32, the third connection position c, the second connection position b, the fourth connection position d, the first connection position a, the sixth connection position f, and the fifth connection position e are sequentially far from the door front wall 31. In the present embodiment, in the projection of the plane of the door sidewall 32, the fourth connection location d is closer to the second connection location b than the first connection location a.

As an alternative, the second connection point b is adjacent to the fourth connection point d in the projection of the plane of the door side wall 32. It can be provided that, in the projection of the plane of the door side wall 32, the distance between the second connection position b and the fourth connection position d is smaller than 3mm, and the distance between the first connection position a and the fourth connection position d is smaller than 10mm.

As an alternative, in the projection of the plane of the door side wall 32, the projection points of the fifth connection position e, the sixth connection position f, the first connection position a, and the third connection position c are sequentially denoted as e ', f', a ', and c'. The distance between the fifth connection bit e and the sixth connection bit f is denoted as e 'f', the distance between the fifth connection bit e and the first connection bit a is denoted as e 'a', and the distance between the first connection bit a and the third connection bit c is denoted as a 'c', wherein e 'a' and a 'c' are any one of 3 to 4, and e 'f' and e 'a' are any one of 0.5 to 0.6.

In this embodiment, the guide groove surrounds the guide centroid O, and the first guide section K1, the second guide section K2, the third guide section K3, the fourth guide section K4, and the fifth guide section K5 are all convex in a direction away from the guide centroid O, and the sixth guide section K6 is convex in a direction close to the guide centroid O, so that the guide track line K is smoothly transited from the fifth connection position e to the first connection position a.

In this embodiment, the first guide section K1 extends in a direction approaching the door side wall 32 and the door front wall 31 from the first connection position a toward the second connection position b, the second guide section K2 extends in a direction approaching the door side wall 32 and the door front wall 31 from the second connection position b toward the third connection position c, the third guide section K3 extends in a direction approaching the door side wall 32 and the door front wall 31 from the third connection position c toward the fourth connection position d, the fourth guide section K4 extends in a direction approaching the door side wall 32 and the door front wall 31 from the fourth connection position d toward the fifth connection position e, the fifth guide section K5 extends in a direction approaching the door side wall 32 and the door front wall 31 from the fifth connection position e toward the sixth connection position f, the sixth guide section K6 extends in a direction approaching the door side wall 32 and the door front wall 31 from the sixth connection position f, and the sixth guide section K6 extends in a direction approaching the boss O.

That is, in the present embodiment, the second connection point b is the point where the guide track line K is closest to the door side wall 32, the fourth connection point d is the point where the guide track line K is farthest from the door side wall 32, the third connection point c is the point where the guide track line K is closest to the door front wall 31, and the fifth connection point e is the point where the guide track line K is closest to the door rear wall 33.

As an embodiment, as shown in fig. 8, when the door body 30 is closed, the second hinge shaft 42 is in contact engagement with the first connection location a of the guide slot, and the third hinge shaft 43 is in contact engagement with the fourth connection location d of the guide slot. Correspondingly, the first hinge axis 41 is now located on the guide track line S. As one arrangement, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with an end of the sixth guide section K6 of the guide slot near the door front wall 31, and the third hinge shaft 43 is in interference fit with an end of the third guide section K3 of the guide slot far from the door side wall 32.

In the present embodiment, the sixth guide section K6 extends in a direction away from the door side wall 32 and the door front wall 31 in a direction approaching the sixth connection position f from the first connection position a and projects toward the approaching guide centroid O, and the third guide section K3 extends in a direction approaching the door side wall 32 and the door front wall 31 in a direction approaching the third connection position c from the fourth connection position d. That is, the distance between the sixth guide section K6 and the door sidewall 32 increases in the direction from the first connection position a toward the sixth connection position f, and the distance between the third guide section K3 and the door sidewall 32 decreases in the direction from the fourth connection position d toward the third connection position c. The above arrangement can prevent the third hinge shaft 43 from moving along the third guide section K3 with respect to the guide groove in a direction approaching the third connecting position c from the fourth connecting position d. When the door body 30 is closed until the opening angle is 0 ° and then continues to move in the closing direction, the above arrangement of the guide track line K can apply resistance to the movement of the second hinge shaft 42 and the third hinge shaft 43 relative to the guide slot, so that the door body 30 can stably stay in the closed state, and the door body 30 can be prevented from being excessively closed and then rebounded to be opened due to excessive force applied to the door body 30.

Assuming that the door body 30 continues to move in the closing direction from the closed state, the second hinge shaft 42 has a tendency to move in a direction approaching the sixth connection position f with respect to the sixth guide section K6, and the third hinge shaft 43 has a tendency to move in a direction approaching the third connection position c with respect to the third guide section K3. Since the distance between the sixth guide section K6 and the door sidewall 32 increases in the direction approaching from the first connection position a to the sixth connection position f in the present embodiment. The extending trend of the sixth guide section K6 has a trend of moving the second hinge shaft 42 in a direction away from the door sidewall 32 while keeping the first hinge shaft 41 moving along the guide slot and the second hinge shaft 42 being engaged with the sixth guide section K6. Likewise, the first hinge shaft 41 and the third hinge shaft 43 each have a tendency to move in a direction away from the door sidewall 32. And since the distance between the third guide section K3 and the door sidewall 32 decreases in the direction approaching from the fourth connection position d to the third connection position c, it applies resistance to the movement of the third hinge shaft 43 to prevent the movement of the third hinge shaft 43. Also, it is assumed that analysis shows that the sixth guide section K6 applies resistance to the movement of the second hinge shaft 42 to prevent the movement of the second hinge shaft 42 while keeping the first hinge shaft 41 to move along the guide slot and the third hinge shaft 43 to be engaged with the third guide section K3. As can be seen from the above, the arrangement of the sixth guide section K6 and the third guide section K3 can limit the tendency of the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 to move continuously along the closing direction relative to the guide portion 60, so that the door 30 can stay in the closed state stably, and the door 30 can be prevented from being opened after being closed excessively due to excessive force.

As an arrangement, when the door body 30 is closed, the first connection position a is located at a side of the center axis of the second hinge shaft 42 near the door sidewall 32 and far from the door front wall 31. That is, when the door body 30 is closed, the region of the second hinge shaft 42, which is close to the door sidewall 32 and far from the door front wall 31, is engaged with the first connection position a. By the sixth guide section K6, the second hinge shaft 42 has a tendency to move in a direction away from the door sidewall 32 while keeping the first hinge shaft 41 moving along the guide slot and the second hinge shaft 42 being engaged with the sixth guide section K6.

In some embodiments of the present application, the guide track line S has a start guide bit I0, a first guide bit I1, a second guide bit I2, a third guide bit I3, a fourth guide bit I4, a fifth guide bit I5, a sixth guide bit I6, a seventh guide bit I7, an eighth guide bit I8, a ninth guide bit I9, a tenth guide bit I10, and an eleventh guide bit I11 thereon.

In some embodiments of the present application, the fourth guiding bit I4 is the guiding track line S near the end point of the door sidewall 32, the eleventh guiding bit I11 is the guiding track line S far away from the end point of the door sidewall 32, wherein the initial guiding bit I0 is located between the fourth guiding bit I4 and the eleventh guiding bit I11, and the initial guiding bit I0, the first guiding bit I1, the second guiding bit I2, the third guiding bit I3, and the fourth guiding bit I4 are sequentially near the door sidewall 32. The fourth pilot bit I4, the fifth pilot bit I5, the sixth pilot bit I6, the seventh pilot bit I7, the eighth pilot bit I8, the ninth pilot bit I9, the tenth pilot bit I10, and the eleventh pilot bit I11 are sequentially far from the door sidewall 32.

As a settable way, the sixth leading bit I6, the start leading bit I0, the first leading bit I1, the fifth leading bit I5, the second leading bit I2, the third leading bit I3, and the fourth leading bit I4 are sequentially adjacent to the door sidewall 32.

The central axis of the first hinge shaft 41 is denoted as a first central axis I, the central axis of the second hinge shaft 42 is denoted as a second central axis E, and the central axis of the third hinge shaft 43 is denoted as a third central axis F.

During the opening of the door body 30, the first hinge shaft 41 moves relative to the guide groove, the second and third hinge shafts 42 and 43 are engaged with the guide groove, the first central shaft I moves relative to the guide groove along the guide track line S, and the second and third central shafts E and F move relative to the guide groove.

In the projection of the plane of the top wall of the case 10, the first central axis I, the second central axis E, and the third central axis F form an axis triangle IEF.

As an alternative, referring to fig. 3, the axis triangle IEF is an obtuse triangle, the angle FIE is any one of 172 ° to 178 °, and the angle IEF is any one of 3.5 ° to 4 °. I.e. the axis triangle IEF is an obtuse triangle with an angle close to 180 °. Wherein a distance between the first hinge shaft 41 and the second hinge shaft 42 is smaller than a distance between the first hinge shaft 41 and the third hinge shaft 43, and a distance between the second hinge shaft 42 and the third hinge shaft 43 is maximized. The relative positions of the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 form an obtuse triangle, so that the second hinge shaft 42 and the third hinge shaft 43 are matched with the guide slot, the first hinge shaft 41 is matched with the guide slot, the assembly dimension of the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 on the door body 30 (the guide slot) is increased, the shaft triangle IEF formed by the first hinge piece is matched with the guide slot forming surface of the second hinge piece, namely the matching dimension of the first hinge piece and the second hinge piece forming surface is effectively improved, the matching stability of the first hinge piece and the second hinge piece is effectively improved, and the opening stability of the door body 30 is increased. In addition, the second hinge shaft 42 and the third hinge shaft 43 are separated at opposite sides of the first hinge shaft 41 and are matched with the guide slots, thereby increasing stability.

As an alternative, the longest edge EF of the obtuse triangle-shaped shaft triangle IEF is located on the side of the vertex I of the shaft triangle IEF away from the pick-and-place port, i.e. the line of the second hinge axis 42 and the third hinge axis 43 is located on the side of the first hinge axis 41 away from the pick-and-place port. The second hinge shaft 42 and the third hinge shaft 43 with the largest distance are matched with the guide groove on one side far away from the picking and placing port to support the door body 30, so that the supporting stability of the three hinge shafts on the door body 30 is further improved, meanwhile, the size of the triangular shaft IEF in the direction perpendicular to the picking and placing port is reduced, the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 can be arranged on the second extension plate 4022, and the avoidance of the door corner 7 and the hinge plate 40 is realized.

In some embodiments of the present application, in a projection of a plane on which the top wall of the box body is located, a straight line IE on which the first central axis I and the second central axis E are located is parallel to the pick-and-place opening. In addition, the third central axis F may be disposed at a side of the line IE where the first central axis I and the second central axis E are located, which is far away from the pick-and-place opening.

In the present embodiment, a guide slot and a guide slot are provided in the door body 30, and the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are fixed to the case 10 by the hinge plate 40. The movement of the door 30 relative to the cabinet 10 is equivalent to the relative movement in a plane (two-dimensional plane) parallel to the top wall of the cabinet 10. In a plane parallel to the top wall of the box 10, the door 30 moves relative to the box 10, and the movement of the guide slot or guide slot relative to the shaft triangle IEF is equivalent to the movement of the guide slot or guide slot relative to the hinge plate 40 (box 10) and is also equivalent to the movement of the door 30 relative to the box 10. In the present embodiment, for convenience of explanation, the case 10 is represented by an axis triangle IEF, and the door 30 is represented by a guide groove or a guide groove.

In this embodiment, for convenience of description, the door 30 (guide slot or guide groove) is used as a stationary reference, and the first hinge shaft 41 moves relative to the guide groove, and the second hinge shaft 42 or the third hinge shaft 43 moves relative to the guide groove, so as to describe a specific process of opening the door 30.

As shown in fig. 8-33, the movement of the shaft triangle IEF relative to the guide groove/guide slot is equivalent to the movement of the case 10 (hinge plate 40) relative to the door 30.

Wherein the movement of the first hinge shaft 41 with respect to the guide groove is equivalent to the movement of the first central axis I with respect to the guide track line S, and the movement of the second hinge shaft 42 or the third hinge shaft 43 with respect to the guide groove is equivalent to the movement of the second hinge shaft 42 or the third hinge shaft 43 with respect to the guide track line K.

In the present embodiment, the maximum angle Gmax >90 ° of the refrigerator opening is described as an example. In the following description, gmax=g11 will be described as an example. It should be noted that the maximum angle Gmax may be another angle, which is not limited by gmax=g11.

When the door body 30 is rotated to be opened to a specific angle during the process of opening the door body 30 from the closed state to the maximum angle Gmax (=g11), the relative positions of the first hinge shaft 41 and the second and third hinge shafts 421 and 43 with respect to the guide groove are as follows:

Wherein phi represents the opening angle of the door body 30, and the opening angle phi=0° when the door body 30 is in the closed state;

As shown in fig. 8, when Φ=0°, the door 30 is in the closed state, and the first central axis I is located at the initial guiding position I0 of the guiding track line S. That is, when the door body 30 is closed, the first hinge shaft 41 is located at an area of the guide groove near the door sidewall 32. The second hinge axis 42 cooperates with the first connection position a of the guide track line K and the third hinge axis 43 cooperates with the fourth connection position d of the guide track line K. At this time (when Φ=0°), the second central axis E is located at E0 with respect to the door 30, the third central axis F is located at F0 with respect to the door 30, i.e., the axis triangle IEF is located at the initial triangle position I0E0F0 with respect to the door 30. The centroid plane P is located on the side of the initial triangle position I0E0F0 away from the door front wall 31, i.e., the centroid plane P is located on the side of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 away from the door front wall 31. That is, the centroid plane P is not between the hinge axes when the door 30 is closed.

As shown in fig. 9, when Φ=g1 e (0 °, G2), the door body 30 is rotated to be opened to G2 from the closed state, in which the first center axis I is moved in a direction approaching the door sidewall 32 along the guide trajectory S, the second hinge axis 42 is engaged with the first guide section K1 and the second hinge axis 42 is moved in a direction approaching the second connection position b from the first connection position a with respect to the first guide section K1, the third hinge axis 43 is engaged with the fourth guide section K4 and the third hinge axis 43 is moved in a direction approaching the fifth connection position e from the fourth connection position d with respect to the fourth guide section K4. That is, in the process of rotating the door body 30 from the closed state to G2, the first hinge shaft 41 moves in a direction approaching the door side wall 32 with respect to the guide groove, the second hinge shaft 42 moves in a direction approaching the door side wall 32 and the door front wall 31 with respect to the guide groove, and the third hinge shaft 43 moves in a direction approaching the door side wall 32 and moving away from the door front wall 31 with respect to the guide groove.

In the above, when the door body 30 is opened by an angle phi=g1 e (0 °, G2), the movement trend of the opening angle interval is kept uniform, and the difference is that the opening angle is different, the positions of the first hinge shaft 41 with respect to the guide track line S are different, the positions of the second hinge shaft 42 with respect to the first guide section K1 of the guide track line K are different, and the positions of the third hinge shaft 43 with respect to the fourth guide section K4 of the guide track line K are different. Thus, when the opening angle Φ=g1 e (0 °, G2), selecting one of the opening angles may represent the relative positions of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 with respect to the guide groove when the door body 30 is opened to the corresponding section. Specifically, as shown in fig. 9 and 23, the position within the opening angle interval is represented by Φ=g1∈ (0 °, G2) to compare when the door body 30 is opened to other states.

As shown in fig. 9 and 23, when the door 30 is opened to G1, the first central axis I is located at the first guide position I1 of the guide track line S. Wherein the first guiding position I1 is positioned on one side of the initial guiding position I0 near the door side wall 32, the first guiding section K1 of the guiding track line K is matched with the second hinge shaft 42, and the fourth guiding section K4 is matched with the third hinge shaft 43. At this time (when Φ=g1), the second central axis E is located at E1 with respect to the door 30, the third central axis F is located at F1 with respect to the door 30, i.e., the axis triangle IEF is located at the first triangle position I1E1F1 with respect to the door 30. As can be seen from the opening of the door body 30 from the closed position to G2, there is a phi=g1, when phi=g1E (0 °, G '1), the centroid plane P is located on the side of the first hinge axis 41 away from the door front wall 31, i.e., on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the door front wall 31, i.e., when the door body 30 is at an angle G1, the centroid plane P is not between the hinge axes, when phi=g1E (G' 1, G2), the centroid plane P passes through the first triangular position I1E1F1, i.e., the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42, i.e., when the door body 30 is opened at an angle no greater than G '1, the centroid plane P is not between the hinge axes, and when the door body 30 is opened at an angle greater than G' 1, the centroid plane P is effectively loaded closer to the hinge axis to the door body 30 by the centroid plane P.

As shown in fig. 10 and 24, when Φ=g2, the door body 30 is rotated to be opened to G2, the first central axis I is located at the second guide position I2 of the guide track line S, wherein the second guide position I2 is located at a side of the first guide position I1 near the door sidewall 32. The second hinge axis 42 cooperates with the second connection location b of the guide track line K, i.e. the second hinge axis 42 moves to a position at a minimum distance from the door side wall 32. At the same time, the third hinge shaft 43 cooperates with the fourth guide section K4. At this time (when Φ=g2), the second central axis E is located at E2 with respect to the door 30, the third central axis F is located at F2 with respect to the door 30, i.e., the axis triangle IEF is located at the second triangle position I2E2F2 with respect to the door 30. The centroid plane P passes through the second trigonometric position I2E2F2. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the door 30 is opened at the angle G2, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to carry the weight of the door 30 closer to the center of mass plane P, thereby effectively increasing the stability of opening the door 30.

As shown in fig. 11, when Φ=g3∈ (G2, G4), the door body 30 is rotated from G2 to G4, and the first center axis I moves along the guide trajectory S in the direction approaching the door side wall 32 during the above opening. The second hinge shaft 42 is engaged with the second guide section K2, and the second hinge shaft 42 moves in a direction approaching from the second connection position b to the third connection position c with respect to the second guide section K2, and the third hinge shaft 43 is engaged with the fourth guide section K4, and the third hinge shaft 43 moves in a direction approaching from the fourth connection position d to the fifth connection position e with respect to the fourth guide section K4. That is, in the process of the door body 30 being rotated to be opened to G4 by G2, the second hinge shaft 42 moves in a direction away from the door side wall 32 and toward the door front wall 31 with respect to the guide groove while the first hinge shaft 41 moves in a direction toward the door side wall 32 with respect to the guide groove, and the third hinge shaft 43 continues to move in a direction toward the door side wall 32 and away from the door front wall 31 with respect to the guide groove.

In the above, when the door body 30 is opened at the angle phi=g3 e (G2, G4), the movement trend of the opening angle interval is kept uniform, and the difference is that the opening angle is different, the positions of the first hinge shaft 41 with respect to the guide track line S are different, the positions of the second hinge shaft 42 with respect to the second guide section K2 of the guide track line K are different, and the positions of the third hinge shaft 43 with respect to the fourth guide section K4 of the guide track line K are different. Thus, when the opening angle Φ=g3∈ (G2, G4), selecting one of the opening angles may represent the relative positions of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 with respect to the guide groove when the door body 30 is opened to the corresponding section. Specifically, as shown in fig. 11 and 25, the position in the opening angle interval is represented by Φ=g3∈ (G2, G4) to compare when the door body 30 is opened to other states.

As shown in fig. 11 and 25, when the door body 30 is opened to G3, the first central axis I is located at a third guiding position I3 of the guiding track line S, wherein the third guiding position I3 is located at a side of the second guiding position I2 near the door sidewall 32, the second guiding section K2 of the guiding track line K is engaged with the second hinge axis 42, and the fourth guiding section K4 is engaged with the third hinge axis 43. At this time (when Φ=g3), the second central axis E is located at E3 with respect to the door 30, the third central axis F is located at F3 with respect to the door 30, i.e., the axis triangle IEF is located at the third triangle I3E3F3 with respect to the door 30. During the above rotation of the door 30 from G2 to G4, the centroid plane P always passes through the third triangular position I3E3F3. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, in the process of opening the door body 30 by G2 rotation to G4, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to load the weight of the door body 30 closer to the center of mass plane P, so that the stability of opening the door body 30 is effectively increased.

As shown in fig. 12 and 26, when Φ=g4, the door 30 is rotated to open to G4. The first central axis I is located at a fourth guiding position I4 of the guiding track line S, wherein the fourth guiding position I4 is located at a side of the third guiding position I3 close to the door side wall 32 and is an end point of the guiding track line S close to the door side wall 32, i.e. the first hinge axis 41 moves to an end point of the guiding slot close to the door side wall 32. The second hinge axis 42 cooperates with a second guide section K2 of the guide track line K, and the third hinge axis 43 cooperates with a fourth guide section K4. At this time (when Φ=g4), the second central axis E is located at E4 with respect to the door 30, the third central axis F is located at F4 with respect to the door 30, and the axis triangle IEF is located at the fourth triangle I4E4F4 with respect to the door 30. The centroid plane P passes through the fourth triangular bit I4E4F4. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the door 30 is opened at the angle G4, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to carry the weight of the door 30 closer to the center of mass plane P, thereby effectively increasing the stability of opening the door 30.

As shown in fig. 13, when Φ=g5∈ (G4, G6), the door body 30 is rotated from G4 to G6, the first center axis I moves away from the door sidewall 32 along the guide trajectory S during the above opening, the second hinge shaft 42 is engaged with the second guide section K2 and the second hinge shaft 42 moves toward the third connection position c from the second connection position b with respect to the second guide section K2, the third hinge shaft 43 is engaged with the fourth guide section K4 and the third hinge shaft 43 moves toward the fifth connection position e from the fourth connection position d with respect to the fourth guide section K4. That is, in the process of the door body 30 being rotated to be opened to G6 by G4, the second hinge shaft 42 moves away from the door side wall 32 and toward the door front wall 31 with respect to the guide groove while the first hinge shaft 41 moves away from the door side wall 32 with respect to the guide groove, and the third hinge shaft 43 continues to move toward the door side wall 32 and away from the door front wall 31 with respect to the guide groove.

In the above, when the door body 30 is opened at the angle phi=g5 e (G4, G6), the movement trend of the opening angle interval is kept uniform, and the difference is that the opening angle is different, the positions of the first hinge shaft 41 with respect to the guide track line S are different, the positions of the second hinge shaft 42 with respect to the second guide section K2 of the guide track line K are different, and the positions of the third hinge shaft 43 with respect to the fourth guide section K4 of the guide track line K are different. Thus, when the opening angle Φ=g5∈ (G4, G6), selecting one of the opening angles may represent the relative positions of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 with respect to the guide groove when the door body 30 is opened to the corresponding section. Specifically, as shown in fig. 13 and 27, the position in the opening angle section is represented by Φ=g5∈ (G4, G6) to compare when the door body 30 is opened to other states.

As shown in fig. 13 and 27, when the door body 30 is opened to G5, the first central axis I is located at a fifth guide position I5 of the guide track line S, wherein the fifth guide position I5 is located at a side of the fourth guide position I4 away from the door sidewall 32, the second guide section K2 of the guide track line K is engaged with the second hinge shaft 42, and the fourth guide section K4 is engaged with the third hinge shaft 43. At this time (when Φ=g5), the second central axis E is located at E5 with respect to the door 30, the third central axis F is located at F5 with respect to the door 30, i.e., the axis triangle IEF is located at the fifth triangle I5E5F5 with respect to the door 30. During the above rotation of the door 30 from G4 to G6, the centroid plane P always passes through the fifth triangular position I5E5F5. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, in the process of opening the door body 30 by G4 to G6, the center of mass plane P is between the hinge shafts, and the hinge shafts cooperate to bear the weight of the door body 30 closer to the center of mass plane P, so that the opening stability of the door body 30 is effectively increased.

As shown in fig. 14 and 28, when Φ=g6, the door body 30 is rotated to be opened to G6, the first central axis I is located at a sixth guide position I6 of the guide track line S, and the sixth guide position I6 is located at a side of the fifth guide position I5 away from the door sidewall 32. The second hinge axis 42 cooperates with a third connection point c of the guide track line K, and the third hinge axis 43 cooperates with a fourth guide section K4. As an alternative, the third hinge shaft 43 is now engaged with the fifth connecting point e. At this time (when Φ=g6), the second central axis E is located at E6 with respect to the door 30, the third central axis F is located at F6 with respect to the door 30, i.e., the axis triangle IEF is located at the sixth triangle I6E6F6 with respect to the door 30. The centroid plane P passes through the sixth triangular position I6E6F6. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the door 30 is opened at the angle G6, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to carry the weight of the door 30 closer to the center of mass plane P, thereby effectively increasing the stability of opening the door 30.

In some embodiments of the application, Φ=g6=90°. I.e. when the door 30 is opened to 90 deg., the second hinge shaft 42 is in contact engagement with the third connection point c of the guide track line K. The IE is arranged parallel to the door front wall 31 when the door 30 is closed. That is, when the door body 30 is closed, a straight line I0E0 where the first central axis I and the second central axis E are located is parallel to the door front wall 31. Correspondingly, when the door body 30 is opened to 90 °, the straight line I6E6 where the first central axis I and the second central axis E are located is perpendicular to the door front wall 31.

In this embodiment, the second guide section K2 extends in a direction from the second connection position b toward the third connection position c toward the door front wall 31 away from the door side wall 32, and the third guide section K3 extends in a direction from the third connection position c toward the fourth connection position d toward the door side wall 32 and the door front wall 31, that is, in a direction from the second connection position b toward the fourth connection position d, the distance of the guide track line K from the door front wall 31 decreases first and then increases, and the distance of the guide track line K from the door front wall 31 at the third connection position c is the smallest. At this time, the door body 30 is opened to 90 °, the line where the first central axis I and the second central axis E are located is perpendicular to the door front wall, the pressure of the guide slot to the second hinge axis 42 is perpendicular to the door front wall 31, the second hinge axis 42 and the guide slot have a tendency to move relatively along the direction parallel to the door front wall 31, and the distance between the third guide section K3 and the door front wall 31 gradually increases along the direction approaching from the third connection position c to the fourth connection position d. When the door body 30 is continuously opened by 90 degrees, the extension form of the third guide section K3 has a tendency of preventing the second hinge shaft 42 and the guide slot from moving relatively in a direction parallel to the door front wall 31 when the door body is opened by 90 degrees, so that the door body 30 can be stably stopped in the 90 degrees state, and a user can conveniently take and put articles from the storage room after opening the door body 30 to 90 degrees. By continuing to apply external force, the door 30 can be opened continuously against the resistance applied by the third guide section K3.

In some embodiments of the present application, the second hinge shaft 42 is interference fit with the guide track line K when the door body 30 is opened to 90 °.

In some embodiments of the present application, the third hinge shaft 43 is interference fit with the fourth guide section K4 when the door body 30 is opened to 90 °.

As shown in fig. 15, when Φ=g7∈ (G6, G8), the door 30 is opened by G6 rotation to G8. In the above opening process, the first central axis I moves along the guide track line S in a direction away from the door sidewall 32, the second hinge shaft 42 is engaged with the third guide section K3 and the second hinge shaft 42 moves in a direction approaching from the third connection position c to the fourth connection position d with respect to the third guide section K3, the third hinge shaft 43 is engaged with the fifth guide section K5 and the third hinge shaft 43 moves in a direction approaching from the fifth connection position e to the sixth connection position f with respect to the fifth guide section K5. That is, in the process of the door body 30 being rotated and opened from G6 to G8, the first hinge shaft 41 moves away from the door side wall 32 with respect to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and the door front wall 31 with respect to the guide groove, and the third hinge shaft 43 moves toward the door side wall 32 and the door front wall 31 with respect to the guide groove.

In the above, when the door body 30 is opened at the angle phi=g7 e (G6, G8), the movement trend of the opening angle interval is kept uniform, and the difference is that the opening angle is different, the positions of the first hinge shaft 41 with respect to the guide track line S are different, the positions of the second hinge shaft 42 with respect to the second guide section K2 of the guide track line K are different, and the positions of the third hinge shaft 43 with respect to the fifth guide section K5 of the guide track line K are different. Thus, when the opening angle Φ=g7∈ (G6, G8), selecting one of the opening angles may represent the relative positions of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 with respect to the guide groove when the door body 30 is opened to the corresponding section. Specifically, as shown in fig. 15 and 29, the position within the opening angle interval is represented by Φ=g7∈ (G6, G8) to compare when the door body 30 is opened to other states.

As shown in fig. 15 and 29, when the door 30 is opened to G7, the first center axis I is located at the seventh guide position I7 of the guide track line S. Wherein the seventh guiding position I7 is located at a side of the sixth guiding position I6 remote from the door side wall 32, the third guiding section K3 of the guiding track line K cooperates with the second hinge shaft 42, and the fifth guiding section K5 cooperates with the third hinge shaft 43. At this time (when Φ=g7), the second central axis E is located at E7 with respect to the door 30, the third central axis F is located at F7 with respect to the door 30, i.e., the axis triangle IEF is located at the seventh triangle I7E7F7 with respect to the door 30. During the above rotation of the door 30 from G6 to G8, the centroid plane P always passes through the seventh triangle I7E7F7. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, in the process of opening the door body 30 by G6 rotation to G8, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to load the weight of the door body 30 closer to the center of mass plane P, so that the opening stability of the door body 30 is effectively increased.

As shown in fig. 16 and 30, when Φ=g8, the door body 30 is rotated to be opened to G8, the first central axis I is located at the eighth guide position I8 of the guide track line S, and the eighth guide position I8 is located at a side of the seventh guide position I7 away from the door sidewall 32. The second hinge shaft 42 is engaged with the third guide section K3, and the third hinge shaft 43 is engaged with the fifth guide section K5. At this time (when Φ=g8), the second central axis E is located at E8 with respect to the door 30, the third central axis F is located at F8 with respect to the door 30, i.e., the axis triangle IEF is located at the eighth triangle I8E8F8 with respect to the door 30. The centroid plane P passes through the eighth triangle position I8E8F8 and, in particular, is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 remote from the second hinge axis 42 and remote from the door front wall 31. That is, when the door 30 is opened at the angle G8, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to load the weight of the door 30 closer to the center of mass plane P, thereby effectively increasing the stability of opening the door 30.

In connection with the foregoing arrangement of the door 30 being opened to various angles, in some embodiments of the present application, the second hinge shaft 42 and the third hinge shaft 43 are always in contact engagement with the inner wall of the guide slot during the opening of the door 30 from the closed state to G8. In addition, at a specific opening angle (0 °,90 °), the second hinge shaft 42 or the first hinge shaft 43 is interference-fitted with the guide track groove, so that the door body 30 can be stably maintained in a corresponding state.

17-18, When the door body 30 is rotated from G8 to G11, the first central axis I moves away from the door sidewall 32 along the guide track S during the opening, the second hinge shaft 42 is engaged with the third guide section K3 and the second hinge shaft 42 moves toward the fourth connection position d from the third connection position c relative to the third guide section K3, the third hinge shaft 43 is engaged with the fifth guide section K5 and the third hinge shaft 43 moves toward the sixth connection position f from the fifth connection position e relative to the fifth guide section K5. That is, in the process of the door body 30 being rotated and opened from G8 to G11, the first hinge shaft 41 moves away from the door side wall 32 with respect to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and the door front wall 31 with respect to the guide groove, and the third hinge shaft 43 moves toward the door side wall 32 and the door front wall 31 with respect to the guide groove.

The difference is that the opening angle is different, the position of the first hinge shaft 41 relative to the guide track line S is different, the position of the second hinge shaft 42 relative to the second guide section K2 of the guide track line K is different, and the position of the third hinge shaft 43 relative to the fifth guide section K5 of the guide track line K is different. Thus, when the opening angle φ ε (G8, G11) is within, selecting one of the opening angles may represent the relative positions of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 with respect to the guide slot when the door body 30 is opened to the corresponding section. Specifically, as shown in fig. 17 and 31, the positions within the opening angle interval are represented by Φ=g9∈ (G8, G11), Φ=g10∈ (G8, G11), and are compared with the case where the door body 30 is opened to other states, where G9< G10. Since the angle range is large, two of the angles are selected for explanation to show the movement in the angle range.

As shown in fig. 18 and 32, when the door 30 is opened to G9, the first center axis I is located at the ninth guide position I9 of the guide track line S. Wherein the ninth guiding position I9 is located at a side of the eighth guiding position I8 remote from the door side wall 32, the third guiding section K3 of the guiding track line K cooperates with the second hinge shaft 42, and the fifth guiding section K5 cooperates with the third hinge shaft 43. At this time (when Φ=g9), the second central axis E is located at E9 with respect to the door 30, the third central axis F is located at F9 with respect to the door 30, i.e., the axis triangle IEF is located at the ninth triangle I9E9F9 with respect to the door 30.

When the door 30 is opened to G10, the first center axis I is located at the tenth guide position I10 of the guide track line S. Wherein the tenth guiding position I10 is located at a side of the ninth guiding position I9 remote from the door side wall 32, the third guiding section K3 of the guiding track line K cooperates with the second hinge shaft 42, and the fifth guiding section K5 cooperates with the third hinge shaft 43. At this time (when Φ=g10), the second central axis E is located at E10 with respect to the door 30, the third central axis F is located at F10 with respect to the door 30, i.e., the axis triangle IEF is located at the thirteenth angular position I10E10F10 with respect to the door 30.

During the above rotation of the door 30 from G8 to G11, the centroid plane P always passes through the axis triangle IEF. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, in the process of opening the door body 30 by G8 rotation to G11, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to load the weight of the door body 30 closer to the center of mass plane P, so that the stability of opening the door body 30 is effectively increased.

It should be noted that, in some embodiments of the present application, during the process of opening the door 30 from G8 to G11, the third guide section K3 of the guide track line K is engaged with the second hinge shaft 42 with a gap greater than 0 (i.e., the third guide section K3 is separated from the second hinge shaft 42), and the fifth guide section K5 is engaged with the third hinge shaft 43 in a contact manner.

As shown in fig. 19 and 33, when Φ=g11, the door 30 is rotated to open to G11. The first central axis I is located at an eleventh guiding position I11 of the guiding track line S, wherein the eleventh guiding position I11 is located at one side of the tenth guiding position I10 away from the door side wall 32, and the eleventh guiding position I11 is an end point of the guiding track line S away from one end of the door side wall 32. The second hinge shaft 42 is engaged with the third guide section K3, and the third hinge shaft 43 is engaged with the fifth guide section K5. At this time (when Φ=g11), the second central axis E is located at E11 with respect to the door 30, the third central axis F is located at F11 with respect to the door 30, i.e., the axis triangle IEF is located at the eleventh triangle I11E11F11 with respect to the door 30. The centroid plane P passes through the eleventh triangle bit I11E11F11. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the door 30 is opened at the angle G11, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to carry the weight of the door 30 closer to the center of mass plane P, effectively increasing the stability of opening the door 30.

In some embodiments of the present application, when the door body 30 is opened to G11, both the second hinge shaft 42 and the third hinge shaft 43 are in contact engagement with the inner wall of the guide slot.

In some embodiments of the present application, when the door body 30 is opened to G11, the first hinge shaft 41 is positioned at an end of the guide groove remote from the door sidewall 32, and the third hinge shaft 43 is in contact engagement with the sixth connection position f of the guide groove. In the present embodiment, the sixth guide section K6 extends in a direction approaching the door side wall 32 and the door front wall 31 from the sixth connection position f toward the first connection position a. The distance between the sixth guide section K6 and the door side wall 32 is gradually reduced along the direction from the door rear wall to the door front wall, when the door body 30 is opened to G11, the third hinge shaft 43 is in interference fit with one end of the sixth guide section K6 of the guide groove, which is far away from the door front wall 31, so that the door body 30 can stably stay in the G11 state, a user can conveniently open the door body 30 to G11 and then take and put articles in the storage chamber, and the hinge assembly is prevented from being damaged due to excessive opening of the door body 30 under the action of external force. As an alternative, the third hinge shaft 43 is now in an interference fit with the sixth connection point f of the guide slot.

Assuming that the door body 30 is continuously opened by G11, the third hinge shaft 43 has a tendency to move toward the first connection position a with respect to the sixth guide section K6, and the second hinge shaft 42 has a tendency to move toward the fourth connection position d with respect to the third guide section K3. In the present embodiment, the sixth guide section K6 extends in a direction approaching the door side wall 32 and the door front wall 31 from the sixth connection position f toward the first connection position a, and the distance between the sixth guide section K6 and the door side wall 32 decreases. Wherein the extending tendency of the sixth guide section K6 is such that the third hinge shaft 43 has a tendency to move in a direction away from the door side wall 32 while keeping the first hinge shaft 41 moving along the guide slot and the third hinge shaft 43 being engaged with an end of the sixth guide section K6 away from the door front wall 31 (an end of the fifth guide section K5 near the door front wall 31). In this embodiment, since the first hinge shaft 41 is located at the end of the guide slot away from the door sidewall 32, it cannot continue to move in a direction away from the door sidewall 32, thereby preventing the movement tendency of the third hinge shaft 43. The door 30 can be stably stopped in the G11 state.

As an alternative, the third hinge shaft 43 is interference fit with an end of the sixth guide section K6 remote from the door front wall 31 when the door body 30 is opened to G11. In addition, the second hinge shaft 42 is provided to be in interference fit with the third guide section K3, further increasing the stability of the door 30 to maintain its current state when it is opened to the maximum.

In some embodiments of the present application, when the door body 30 is opened to G11, a side of the third hinge shaft 43 adjacent to the door sidewall 32 is interference-fitted with an end of the sixth guide section K6 remote from the door front wall 31. When the three hinge shafts are simply rotated about the central axis of the first hinge shaft 41 as the rotation axis, the distance between the third hinge shaft 43 and the door sidewall 32 is reduced, and the distance between the third hinge shaft 43 and the door sidewall 32 is reduced at a greater rate than the distance between the sixth guide section K6 and the door sidewall 32, so that the door sidewall 32 of the door body 30 moves in a direction away from the first hinge shaft 41 with respect to the hinge shaft.

As an alternative, the distance between the sixth guide section K6 and the door sidewall 32 in the direction from the door rear wall to the door front wall is gradually reduced, and the rate at which the distance between the sixth guide section K6 and the door sidewall 32 is reduced is denoted as λ6, the distance between the fifth guide section K5 and the door sidewall 32 is gradually reduced, and the rate at which the distance between the fifth guide section K5 and the door sidewall is reduced is denoted as λ5, and λ5> λ6. In combination with the fifth guide section K5 protruding to the side away from the guide centroid O, the sixth guide section K6 protruding to the side close to the guide centroid O to smoothly transition from the sixth connection site f to the first connection site a through the sixth guide section K6.

As one of the settable arrangements, the above contact fitting at the time of the closing state of the door body 30, the opening of the door body 30 to 90 ° and the opening of the door body 30 to the maximum angle Gmax (=g11) is an interference fitting so that the door body 30 can be stopped in the state thereof.

The above 0 ° < G1< G2< G3< G4< G5< G6< G7< G8< G9< G10< G11; G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11 are sequentially noted as first angle G1, second angle G2, third angle G3, fourth angle G4, fifth angle G5, sixth angle G6, seventh angle G7, eighth angle G8, ninth angle G9, tenth angle G10, eleventh angle G11.Gmax is the maximum angle that the door 30 can open. In this embodiment, gmax=g11. The arrangement of the two elements can be carried out, g6=90°.

In the above process of opening the door body 30 from G6 to G11, the first hinge shaft 41 moves away from the door side wall 32 with respect to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and the door front wall 31 with respect to the guide groove, and the third hinge shaft 43 moves toward the door side wall 32 and the door front wall 31 with respect to the guide groove.

In combination with the above analysis of the state of the door body 30 when opened at different angles, it is known that the centroid plane P is located at a side of the axis triangle IEF away from the door front wall 31 in the process of opening the door body 30 from the closed state to G' 1, i.e., at a side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the door front wall 31. In the process of opening the door body 30 from G' 1 to G11, the centroid plane P passes through the axis triangle IEF, that is, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and on a side of the first hinge axis 41 away from the second hinge axis 42. That is, when the opening angle of the door body 30 is not greater than G '1, the mass center plane P is not between the hinge shafts, and when the opening angle of the door body 30 is greater than G' 1, the mass center plane P is between the hinge shafts, and the hinge shafts cooperate to bear the weight of the door body 30 closer to the mass center plane P, so that the opening stability of the door body 30 is effectively increased.

As a configurable way, G' 1:Gmax is any one of 0.8-1. As a settable mode, G' 1 is 20-25 degrees, gmax=G11=151 degrees, and it is known that in most of the opening strokes (83% -87% of the strokes) of the door body 30, the mass center plane F is always located between the first hinge shaft 41 and the third hinge shaft 43, so that stable stress is effectively ensured in the whole opening process of the door body 30, and the orbital transfer movement of the door body 30 is smoother and more stable when the door body 30 is opened.

In summary, in the process of opening the door body 30 from the closed state to gmax=g11, the first hinge shaft 41 moves along a straight line in a direction approaching the door sidewall 32 and then moves in a direction separating from the door sidewall, and the second hinge shaft 42 and the third hinge shaft 42 move clockwise relative to the guide slot in the whole course.

In the process of opening the door body 30 from the closed state to G4, the first hinge shaft 41 moves along a straight line in a direction approaching to the door sidewall relative to the guide groove, and the second hinge shaft 42 moves relative to the first guide section K1 and then moves relative to the second guide section K2;

in the process of opening the door body 30 from G4 to G6, the first hinge shaft 41 moves along a straight line along a direction away from the side wall of the door relative to the guide groove, the second hinge shaft 42 moves relative to the second guide section K2, and the third hinge shaft 43 moves relative to the fourth guide section K4;

In the process of opening the door body 30 from G6 to G11, the first hinge shaft 41 moves in a direction away from the door sidewall in a straight line with respect to the guide groove, the second hinge shaft 42 moves with respect to the third guide section K3, and the third hinge shaft 43 moves with respect to the fifth guide section K5.

In summary, Φ=g4, Φ=g6 divides the opening of the door 30 from the closed state to gmax=g11 into three stages. The following describes the relative movement of the three stages from the angle of the engagement relationship of the first hinge shaft 41 with respect to the guide groove, the second hinge shaft 42, and the third hinge shaft 43 with respect to the guide groove, using the door body 30 (guide groove/guide groove) as a stationary reference:

In the first stage, referring to fig. 8 to 11, as shown in fig. 21 and 23 to 26, the door 30 is rotated from the closed state to the open state G4.

In this first stage, the door 30 is opened from 0 ° to G4 through G1, G2, G3 in this order. In this process, the first central axis I moves linearly along the guide track line S of the guide groove in a direction approaching the door sidewall 32, the second hinge shaft 42 moves first with respect to the first guide section K1 and then with respect to the second guide section K2, and the third hinge shaft 43 moves with respect to the fourth guide section K4. When the door body 30 is opened to G4, the first hinge shaft 41 moves to a point where the guide track line S is close to the door sidewall 32, the fourth guide position I4.

In the opening process in the first stage, the door body 30 (guide groove/guide groove) is described as a reference.

When the door body 30 is opened from 0 ° to G4, the shaft triangle IEF rotates clockwise from the position I0E0F0 and moves to the positions I1E1F1, I2E2F2, I3E3F3, I4E4F4 (I0E 0F0→i1E1F1→i2E2→i3E3F3→i4E4F 4) in this order toward the side close to the door side wall 32. Since the shaft triangle IEF is provided on the hinge plate 40, the shaft triangle IEF represents the movement of the case 10. It follows that the case 10 is opened clockwise with respect to the door body 30 by a certain distance in a direction approaching the door sidewall 32, with the door body 30 (guide groove/guide groove) as a reference.

In summary, in the process of opening the door 30 from the closed state to G4, the case 10 has a displacement parallel to the door rear wall 33 and directed toward the door side wall 32 with respect to the door 30, with the door 30 (guide groove/guide groove) as a reference. Depending on the relativity of the movement, with the case 10 as a reference, the door 30 has a displacement relative to the case 10 parallel to the door rear wall 33 and directed away from the side wall 32 during the opening of the door 30 from the closed state to G4.

In the second stage, referring to fig. 11 to 14, as shown in fig. 22 and 26 to 28, the door 30 is rotated from G4 to G6.

In this second stage, the door 30 is opened from G4 to G6 sequentially through G5. In this process, the first central axis I moves linearly along the guide track line S of the guide groove in a direction away from the door sidewall 32, the second hinge shaft 42 moves relative to the second guide section K2, and the third hinge shaft 43 moves relative to the fourth guide section K4. When the door 30 is opened to G6, the second hinge shaft 42 moves to the third connection position c.

In the second stage of opening, the door body 30 (guide groove/guide groove) is described as a reference.

When the door body 30 is opened from G4 to G6, the shaft triangle IEF rotates clockwise from I4E4F4 and moves to I5E5F5, I6E6F6 (I4E 4→i5E5→i6E6F 6) in order to the side away from the door side wall 32. Since the shaft triangle IEF is provided on the hinge plate 40, the shaft triangle IEF represents the movement of the case 10. It follows that the case 10 is opened clockwise with respect to the door body 30 by a certain distance in a direction away from the door sidewall 32, with the door body 30 (guide groove/guide groove) as a reference.

In summary, in the process of opening the door 30 from G4 to G6, the case 10 has a displacement parallel to the door rear wall 33 and directed toward the side away from the door side wall 32 with respect to the door 30, with the door 30 (guide groove/guide groove) as a reference. Depending on the relativity of the movement, with the case 10 as a reference, the door 30 has a displacement parallel to the door rear wall 33 and directed toward the door side wall 32 with respect to the case 10 during the opening of the door 30 from G4 to G6.

In the third stage, as shown in fig. 14 to 19, as shown in fig. 22 and 28 to 33, the door 30 is rotated from G6 to gmax=g11.

In this third stage, the door 30 is opened from G6 to G11 through G7, G8, G9, G10 in this order. In this process, the first central axis I moves linearly along the guide track line S of the guide groove in a direction away from the door sidewall 32, the second hinge shaft 42 moves relative to the third guide section K3, and the third hinge shaft 43 moves relative to the fifth guide section K5. When the door 30 is opened to G11, the third hinge shaft 43 moves to the sixth connection position f.

In the opening process in the third stage, the door body 30 (guide groove/guide groove) is described as a reference.

When the door body 30 is opened from G6 to G11, the shaft triangle IEF rotates clockwise from I6E6F6 and moves to I7E7F7, I8E8F8, I9E9F9, I10E10F10, I11E11F11 in this order toward the side away from the door side wall 32 (I6E 6F6→i7E7→i8E8F8→i9E9→i10E10→i11E11F 11). Since the shaft triangle IEF is provided on the hinge plate 40, the shaft triangle IEF represents the movement of the case 10. It follows that the case 10 is opened clockwise with respect to the door body 30 by a certain distance in a direction away from the door sidewall 32, with the door body 30 (guide groove/guide groove) as a reference.

In summary, in the process of opening the door 30 from G6 to G11, the case 10 has a displacement parallel to the door rear wall 33 and directed toward the side away from the door side wall 32 with respect to the door 30, with the door 30 (guide groove/guide groove) as a reference. In combination with the above movement conditions of the second stage and the third stage, the door 30 has a displacement parallel to the door rear wall 33 and directed toward the door side wall 32 relative to the case 10 during the process of opening the door 30 from G6 to G11, with the case 10 as a reference object according to the relativity of the movement.

In combination with the first, second and third stages, it is known that the displacement of the door body 30 is parallel to the door rear wall 33 and directed away from the door side wall 32 or parallel to the door rear wall 33 and directed toward the door side wall 32, based on the relativity of the movements, with the case body 10 as a reference. Wherein, with respect to the case 10, a displacement of the door body 30 parallel to the door rear wall 33 and directed toward a side away from the door side wall 32 is referred to as a first-direction displacementThe displacement parallel to the door rear wall 33 and directed toward the door side wall 32 is denoted as second-direction displacement. Wherein the second direction is displacedIs displaced from the first directionParallel to the door rear wall 33 but in opposite sense to the door side wall 32.

It should be noted that "toward the door side wall 32" means that the door side wall 32 is directed from the opposite end of the door body 30 to the door side wall 32, and "toward the side away from the door side wall 32" means that the door side wall 32 is directed from the door side wall 32 to the opposite end of the door body 30 to the door side wall 32. In addition, the above first direction displacementDisplacement in the second directionAre instantaneous relative displacements to account for the current direction of motion of the door 30 relative to the housing 10.

Specifically, as can be seen from the analysis of the first to third stages above, in the process of opening the door 30 from the closed state to G4 (< 90 °), the door 30 has a first direction displacement parallel to the door rear wall 33 and directed to a side away from the door side wall 32 during the displacement decomposition of the door 30 relative to the case 10。

In the process of opening the door body 30 from G4 to G11 (> 90 DEG), the door body 30 has a second direction displacement parallel to the door rear wall 33 and directed toward the door side wall 32 in the displacement decomposition of the door body 30 relative to the box body 10。

Referring to fig. 34-38, in the plane of the top wall of the case 10, a displacement coordinate system AOB is established on the side of the case 10 close to the door 30, specifically, in the displacement coordinate system AOB, OB is perpendicular to the plane of the pick-and-place port, B is located on the side (front side) of O away from the pick-and-place port, OA is parallel to the plane of the pick-and-place port, and a is located on the side (outer side) of O away from the second body side wall. That is, in the displacement coordinate system AOB, the direction from the second body side wall to the first body side wall is positive, and the direction from the pick-and-place port to the door front wall 31 (from the rear to the front) when the door body 30 is closed is positive. It should be noted that, during the opening of the door 30, the displacement coordinate system AOB remains stationary with respect to the case 10, and does not move with the opening of the door 30.

(1) As shown in fig. 35 to 36, in the process of opening the door body 30 from the closed state to 90 °, the door side wall 32, the door rear wall 33, and the door front wall 31 are also rotated counterclockwise in the process of opening the door body 30 counterclockwise with respect to the case 10. The door side wall 32 extends outwardly and forwardly in a direction from the second side edge N toward the first side edge W (the door rear wall 33 toward the door front wall 31) and the door rear wall 33 extends inwardly and forwardly in a direction from the door side wall 32 toward the opposite end of the door body 30 from the door side wall 32 in the plane of the top wall of the case 10.

In the above opening process (the closed state is opened to 90 °), the door side wall 32 starts to rotate counterclockwise from the state parallel to the reference plane M0, the angle between the door side wall 32 and the plane of the access opening gradually decreases and the angle between the door side wall 32 and the reference plane M0 gradually increases, that is, in the process of opening the door body 30 from the closed state to 90 °), the door side wall 32 extends to the side away from the second body side wall and the access opening with respect to the case 10 in the direction from the second side edge N to the first side edge W. At the same time, as the opening angle of the door body 30 increases, the angle between the door rear wall 33 and the plane of the pick-and-place opening increases gradually, and the angle between the door rear wall 33 and the reference plane M0 decreases gradually, that is, in the process of opening the door body 30 from the closed state to 90 °, the door rear wall 33 extends away from the first body side wall and the pick-and-place opening in a direction from the door side wall 32 toward the opposite end of the door body 30 to the door side wall 32 with respect to the case 10.

(1.1) In connection with the description of the displacement direction of the door 30 relative to the housing 10 during the opening of the door 30 from the closed position to G4 (G4 <90 °), the door 30 has a first displacement direction parallel to the rear wall 33 of the door and directed to the side facing away from the side wall 32 of the door, with the housing 10 as a reference during the opening of the door 30 from the closed position to G4I.e. first direction displacementToward the inner front side (inward forward side) of the case 10.

As shown in fig. 35, in the displacement coordinate system AOB, in the process of opening the door 30 from the closed state to G4, the first direction of the door 30 is displacedIs located in the second quadrant (A <0, B > 0). For a first direction displacementPerforming displacement decomposition on the A axis and the B axis, and performing displacement in a first directionThe partial displacement on the A axis is<0, A partial displacement on the B axis of>0. That is, in the track feature of the present invention, the door 30 has, in the displacement coordinate system AOB, in the process of opening the door 30 from the closed state to G4<0 And>0. It follows that the door 30 has a tendency to move in a negative direction along the a-axis and in a positive direction along the B-axis with respect to the case 10, i.e., the door 30 has a tendency to move inward and forward with respect to the case 10 during the closing state of the door 30 being opened to G4 (G4 <90 °).

(1.2) In combination with the description of the displacement direction of the door 30 relative to the case 10 during the opening of the door 30 from G4 (G4 <90 °) to g6=90°, the door 30 has a second displacement direction parallel to the rear wall 33 and directed to the side of the door sidewall 32 during the opening of the door 30 from G4 to 90 ° with respect to the case 10In the second direction of displacementToward the outer rear side (outward to rearward side) of the case 10.

As shown in fig. 36, in the displacement coordinate system AOB, the door 30 is displaced in the second direction in the process of opening the door 30 from G4 to 90 degreesIs located in the fourth quadrant (A >0, B < 0). For displacement in the second directionThe displacement decomposition is carried out on the axis A and the axis B, and the displacement in the second directionThe partial displacement on the A axis is0, A partial displacement on the B axis of<0. That is, in the track feature of the present invention, the door 30 has, in the displacement coordinate system AOB, in the process of opening the door 30 from G4 to 90 DEG0 And<0. It follows that the door 30 has a tendency to move positively along the a-axis and negatively along the B-axis relative to the case 10, i.e., the door 30 has a tendency to move outwardly and rearwardly relative to the case 10 during the opening of the door 30 from G4 to 90 °.

As shown in fig. 37, when the door body 30 is opened to 90 °, the door side wall 33 is parallel to the plane of the pick-and-place port and perpendicular to the reference plane M0, and at this time, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane of the pick-and-place port. That is, the door side wall 32 extends from inside to outside and the door rear wall 33 extends from rear to front in a direction from the second side edge N toward the first side edge W with respect to the case 10.

The description of the displacement direction of the door 30 relative to the case 10 when the door 30 is opened to 90 ° shows that the door 30 has a second displacement direction parallel to the rear wall 33 and directed to the side wall 32 when the door 30 is opened to 90 ° with respect to the case 10In the second direction of displacementPointing to the rear side (rearward side) of the cabinet 10.

As shown in fig. 37, in the displacement coordinate system AOB, the gate body 30 is displaced in the second directionAlong the B axis and pointing in the negative direction of the B axis. For displacement in the second directionThe displacement decomposition is carried out on the axis A and the axis B, and the displacement in the second directionThe partial displacement on the A axis is=0, A partial displacement on the B axis of=<0. That is, in the track feature of the present invention, when the door 30 is opened to 90 °, the door 30 has=0 Sum=<0. It follows that the door 30 has a tendency to move in the negative direction along the B-axis with respect to the case 10, i.e., the door 30 has a tendency to move rearward with respect to the case 10 when the door 30 is opened at 90 °.

(3) As shown in fig. 38, when the door 30 is opened to G11 by 90 ° rotation, the door side wall 32 is also rotated counterclockwise during this stage of opening during counterclockwise rotation of the door 30 relative to the cabinet 10. The door side wall 32 extends outwardly and rearwardly in the plane of the top wall of the case 10 in a direction from the second side edge N toward the first side edge W, and the door rear wall 33 extends outwardly and forwardly in a direction from the door side wall 32 toward the opposite end of the door body 30 from the door side wall 32.

In the above opening process, the door side wall 32 starts to rotate counterclockwise from the state perpendicular to the reference plane M0, the included angle between the door side wall 32 and the plane of the pick-and-place opening gradually increases and the included angle between the door side wall 32 and the reference plane M0 gradually decreases, that is, in the process that the door body 30 is rotated from 90 ° to G11, the door side wall 32 extends to the side far from the second body side wall and close to the pick-and-place opening along the direction from the second side edge N to the first side edge W relative to the box body 10. Meanwhile, the included angle between the door back wall 33 and the plane of the pick-and-place opening is gradually reduced and the included angle between the door back wall 33 and the reference plane M0 is gradually increased, namely, in the process that the door body 30 is rotated from 90 degrees to G11, the door back wall 33 extends away from the second body side wall and the pick-and-place opening along the direction from the door side wall 32 to the opposite end of the door side wall 32 on the door body 30 relative to the box body 10.

In the present embodiment, g4< g6=90°, and the description of the displacement direction of the door 30 relative to the case 10 in the process of opening the door 30 from g6=90° to G11, in combination with the above description, the door 30 has a second displacement direction parallel to the rear wall 33 and directed to one side of the side wall 32 of the door, using the case 10 as a reference, in the process of opening the door 30 from 90 ° to G11In the second direction of displacementToward the inner rear side (inward-rearward side) of the case 10.

As shown in fig. 38, in the displacement coordinate system AOB, in the process of opening the door body 30 from g6=90° to G11, the second direction of the door body 30 is displacedIs located in the third quadrant (A <0, B < 0). For displacement in the second directionThe displacement decomposition is carried out on the axis A and the axis B, and the displacement in the second directionThe partial displacement on the A axis is<0, A partial displacement on the B axis of<0. That is, in the trajectory feature of the present invention, in the course of opening the door 30 from g6=90° to G11, in the displacement coordinate system AOB, the door 30 has<0 And<0. It follows that the door 30 has a tendency to move in the negative direction along the a-axis and in the negative direction along the B-axis with respect to the case 10, i.e., the door 30 has a tendency to move inwardly and backwardly with respect to the case 10 during the opening of the door 30 from g6=90° to the opening of G11.

In summary, in the whole process of opening the door 30 from the closed state to G11, the movement of the door 30 is divided into three stages with respect to the case 10, and the door 30 has a tendency of moving inward, then outward, and then inward.

In this embodiment, only some angles in the range of 0 to 90 degrees and some angles in the range of 90 degrees to gmax=g11 are used as representative to describe the overall movement trend, but the angles can represent the movement trend in the corresponding range, so that the hinge assembly with the track characteristics above in the invention can be described to have the inward-outward-inward movement trend in the opening process of the door body 30.

In this embodiment, the first stage of opening the door 30 has a tendency to move inward. Specifically, the first hinge shaft 41 moves a distance with respect to the guide groove in a direction approaching the door sidewall 32 and moves the door body 30 inward a distance. The first hinge shaft 41 moves toward the door side wall 32 with respect to the guide groove, the second hinge shaft 42 moves toward the door front wall 31 away from the door side wall 32 with respect to the guide groove, and the third hinge shaft 43 moves toward the door side wall 32 away from the door front wall 31 with respect to the guide groove. The above arrangement is suitable for the embedded installation and use situations that the refrigerator is placed in a cabinet. The door body 30 moves inwards when being opened, so that the outward displacement of the first side edge W caused by the pure rotation of the door body 30 can be effectively compensated, the distance of the first side edge W exceeding the reference plane M0 is limited not to exceed the distance between the cabinet and the side wall of the refrigerator body, the mutual interference between the door body 30 and the cabinet 100 is effectively avoided, the limitation of the space of the cabinet 100 on the size and the size of the refrigerator can be further reduced, and the utilization rate of the space of the cabinet 100 is improved. In addition, in the present embodiment, in the process of opening the door 30 from the closed state to G4, the door 30 moves inward and moves forward for a certain distance, so that the door 30 is quickly away from the box 10, and the door seal 5 is effectively prevented from being squeezed.

In this embodiment, the second stage of opening the door 30 has a tendency to move outwardly. Specifically, in the process of opening the door body 30 from G4 to G6 (=90°), the first hinge shaft 41 moves a certain distance away from the door sidewall 32 with respect to the guide groove, and moves the door body 30 outwardly a certain distance. While the first hinge shaft 41 moves away from the door side wall 32 with respect to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and toward the door front wall 31 with respect to the guide groove, and the third hinge shaft 43 continues to move toward the door side wall 32 and away from the door front wall 31 with respect to the guide groove. The door body 30 is moved outwards in the process of opening the door body by 90 degrees, so that shielding of the door body 30 on the taking and placing opening is reduced, objects are conveniently taken and placed, the transverse width of a drawer can be increased on the premise that the drawer placed in a storage chamber can be pulled out, and the space utilization rate of the drawer is increased.

In this embodiment, the second stage is set on the premise that the door body 30 in the first stage moves inwards, so that different requirements of the two stages can be considered at the same time, and flexibility and applicability of the refrigerator are improved.

It should be noted that, in some embodiments of the present application, the setting of the second stage may be set independently, which is not limited by the setting of the door 30 moving inwards during the process of opening the door 30 from the closed state to G4, and the setting of the door 30 matching with the setting of the second stage from the closed state to G4 may be different from the setting of the first stage. For example, it may be provided that the door 30 rotates about the first hinge shaft 41 during the opening of the door 30 from the closed state to G4. In addition, it may be provided that the door 30 has a movement tendency to move outward during the process of opening the door 30 from the closed state to G4.

In this embodiment, the third stage of opening the door 30 has a tendency to move inward, and specifically, in the process of opening the door 30 from G6 (=90°) to G11, the first hinge shaft 41 moves a certain distance away from the door sidewall 32 with respect to the guide groove, and moves the door 30 a certain distance inward. The first hinge shaft 41 moves away from the door side wall 32 with respect to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and the door front wall 31 with respect to the guide groove, and the third hinge shaft 43 moves toward the door side wall 32 and the door front wall 31 with respect to the guide groove. The above arrangement is suitable for the embedded installation and use situation that the refrigerator is placed in the cabinet, and can reduce the limit of the cabinet to the maximum angle that the door body 30 can be opened, so that the maximum angle that the door body 30 of the refrigerator installed in the cabinet can be opened is larger.

In this embodiment, the third stage is set on the premise that the first stage door body 30 moves inwards and the second stage door body 30 moves outwards, so that different requirements of three stages can be considered at the same time, and flexibility and applicability of the refrigerator are effectively improved.

It should be noted that, in some embodiments of the present application, the third stage setting may be set independently, which is not limited by the inward movement setting of the door 30 during the process of opening the door 30 from the closed state to G4, and is not limited by the outward movement setting of the door 30 during the process of opening the door 30 from G4 to G6. The setting of the door 30 opened from the closed state to G4 in cooperation with the third stage setting may be different from the setting of the first stage, and likewise, the setting of the door 30 opened from G4 to G6 in cooperation with the third stage setting may be different from the setting of the second stage.

Referring to fig. 39-49, it is assumed that the door 30 rotates about the first central axis I of the former state to an adjacent position of the latter state (the door 30 is indicated by a dotted line), and the rotation axis of the door 30 is fixed relative to the door 30 during the rotation, so that the first side edge W is positioned at W ' relative to the case 10, the second side edge N is positioned at N ' relative to the case 10, and the side seal H is positioned at H ' relative to the case 10 when the door 30 is opened in the movement tendency. Correspondingly, when the door 30 is opened to the latter state (the door 30 is indicated by a solid line) according to the track setting in the present embodiment, the rotation axis of the door 30 is changed with respect to the door 30 compared to the former state, and at this time, the first side edge W is located at W with respect to the case 10, the second side edge N is located at N with respect to the case 10, and the side seal edge H is located at H with respect to the case 10. In fig. 39, the position of the door 30 indicated by the broken line is the position reached when the door 30 is simply rotated to G1 about the first central axis I (I0) of the door 30 with respect to the door 30 when the door 30 is closed, the position of the door 30 indicated by the solid line is the position reached when the door 30 is rotated to G1 in the setting of the present invention, the position of the door 30 indicated by the broken line is the position reached when the door 30 is rotated to G1 in the setting of the present invention, and the position of the door 30 is rotated to G2 in the opening of the first central axis I (I1) of the previous state) with respect to the door 30 when the door 30 is opened to G1.

In comparison with the arrangement of the present invention, which simply rotates the door body 30 about the first central axis I in the previous state, it is clear that:

In the process of opening the door body 30 from the closed state to the state G4, in the application, the positions W of the first side edges are all positioned at one side of W ' close to the side wall of the second body and far from the picking and placing opening, the positions N of the second side edges are all positioned at one side of N ' close to the side wall of the second body and far from the picking and placing opening, and the positions H of the side sealing edges are all positioned at one side of H ' close to the side wall of the second body and far from the picking and placing opening. That is, the door 30 has a tendency to move inward and forward during the process of opening the door 30 from the closed state to G4.

In the process of opening the door body 30 from G4 to G6, in the application, the positions W of the first side edges are all positioned at one side of W ' far away from the side wall of the second body and close to the picking and placing opening, the positions N of the second side edges are all positioned at one side of N ' far away from the side wall of the second body and close to the picking and placing opening, and the positions H of the side sealing edges are all positioned at one side of H ' far away from the side wall of the second body and close to the picking and placing opening. That is, the door 30 has a tendency to move outward and backward during the process of opening the door 30 from G4 to G6.

In the process of opening the door body 30 from G6 to G11, in the application, the position W of the first side edge is positioned at one side of W ' close to the side wall of the second body and the picking and placing opening, the position N of the second side edge is positioned at one side of N ' close to the side wall of the second body and the picking and placing opening, and the position H of the side sealing edge is positioned at one side of H ' close to the side wall of the second body and the picking and placing opening. That is, the door 30 has a tendency to move inward and backward during the process of opening the door 30 from G6 to G11.

The motion trend of each stage is consistent with the motion trend in the analysis of each stage.

It should be noted that, here, the comparison between the position of the door body 30 in the current state of the present invention and the position of the door body 30 assumed to be simply rotated from the previous state of the present invention about the first central axis I to the open angle of the door body 30 of the present invention is representative, which can represent the movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 of the present invention, and only selected angles are used for comparison and illustration to show the movement trend when the door body 30 is opened.

The movement of the first hinge shaft 41 relative to the guide 50, the movement of the second hinge shaft 42 and the third hinge shaft 43 relative to the guide 60 can move the door body 30 inward or outward in different stages, and the length of the guide track line K is not limited by the above-mentioned all stages, and it is sufficient that it has at least one stage movement characteristic.

In some embodiments of the present application, as shown in connection with fig. 8-20, a first reference plane M1 and a second reference plane M2 are also defined. Referring to fig. 20, the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane where the access opening is located, the first reference plane M1 is a plane where the second body side wall is located, that is, the first reference plane M1 is a plane parallel to the first body side wall (reference plane M0), and the second reference plane M2 is a plane where the access opening of the storage room is located. The first reference plane M1 and the second reference plane M2 do not move along with the door 30 during the opening process of the door relative to the case 10, and are reference planes that remain stationary relative to the case 10.

During the opening process of the door body 30, the first side edge W moves along with the opening of the door body 30, and the movement track thereof is denoted as a first side edge track line. In the projection of the plane of the top wall of the case 10, the first side edge W moves in a direction away from the first reference plane M1 and toward the second reference plane M2, and then moves in a direction toward the first reference plane M1 and the second reference plane M2 during the opening of the door 30.

During the opening process of the door body 30, the second side edge N moves along with the opening of the door body 30, and the movement track thereof is denoted as a second side edge track line. In the projection of the plane of the top wall of the case 10, the second side edge N moves in a direction approaching the first reference plane M1 and the second reference plane M2 and then moves in a direction approaching the first reference plane M1 and moving away from the second reference plane M2 during the opening process of the door 30.

In the process of opening the door body 30, the side seal edge H moves along with the opening of the door body 30, and the movement track of the side seal edge H is recorded as a side seal edge track line. In the projection of the plane of the top wall of the box 10, during the opening process of the door 30, the side seal H moves in a direction approaching the first reference plane M1 and the second reference plane M2, and then moves in a direction approaching the first reference plane M1 and moving away from the second reference plane M2.

In the projection of the plane where the top wall of the case 10 is located, the straight line where the side seal edge H and the second side edge N are located is denoted HN. During the opening of the door 30, the second side edge N is located at a side of the side seal edge H adjacent to the side wall of the first body during the opening of the door 30 from the closed state to the angle G0. And the second side edge N is located at a side of the side sealing edge H away from the first body sidewall during the process of opening the door 30 from the angle G0 to the angle G11. In some embodiments of the present application, the maximum angle that the door 30 can open can be up to 150 °. The hinge assembly having the track feature of the present embodiment allows the maximum opening angle of the door body 30 to be greater when the refrigerator is not in a state of being built-in the cabinet. The settable G0 is any one of 123 DEG to 127 deg.

Example two

The difference between the second embodiment and the first embodiment is that in the present embodiment, the stage of opening the first stage door 30 from the closed state to the inward movement of G4 is not provided. Specifically, the first hinge member in this embodiment is the same as that in the first embodiment, and will not be described herein. As shown in fig. 50, in the second embodiment, the positions of the guide portion 60 and the guide portion 50 when the door 30 is closed may be the same as the positions of the corresponding guide portion 60 and guide portion when the door 30 is opened to any angle of G2 to G5 in the first embodiment. For convenience of explanation, the position of the guide 60 when the door 30 is closed is the same as the position of the guide 60 when the door 30 is opened to G4 in the first embodiment, and the position of the guide 50 when the door 30 is closed is the same as the position of the guide 50 when the door 30 is opened to G4 in the first embodiment, but it should be noted that the arrangement of the present embodiment is not limited to G4.

Specifically, in the present embodiment, the guide portion 60 on the door body 30 rotates counterclockwise G4 with respect to the guide portion 60 in the first embodiment, and the guide portion 50 on the door body 30 rotates counterclockwise G4 with respect to the guide portion 50 in the first embodiment.

In contrast to the first embodiment, the guide portion 50 is disposed parallel to the door front wall 31, in the second embodiment, the guide portion 50 has an angle G4 with the door front wall 31, and the guide portion 50 extends from one end thereof close to the door side wall 32 in a direction away from the door side wall 32 and close to the door front wall 31. Correspondingly, the distance of the guide track line S from the door side wall 32 increases linearly in the direction from the door rear wall 33 to the door front wall 31. In the present embodiment, the angle between the guide portion 50 and the door front wall 31 is not limited to G4. The included angle between the guide track line S and the front wall 31 can be any one of 58-88 degrees, so as to effectively control the outward movement angle range of the door body 30 in the initial stage of the opening process.

For the sake of uniform description, the guiding position on the guiding track line S is the same as the first embodiment, the fourth guiding position I4 is the end point of the guiding track line S close to the door side wall 32, the eleventh guiding position I11 is the end point of the guiding track line S far from the door side wall 32, the eleventh guiding position I11 is located on the side of the fourth guiding position I4 far from the door side wall 32 and close to the door front wall 31, and the guiding track line S is a straight line. That is, the guide portion 50 is inclined and linear, and the guide groove is an inclined and linear groove. The fourth guide bit I4, the fifth guide bit I5, the sixth guide bit I6, the seventh guide bit I7, the eighth guide bit I8, the ninth guide bit I9, the tenth guide bit I10, and the eleventh guide bit I11 are sequentially distant from the door side wall 32 and close to the door front wall 31.

As in the first embodiment, the guide track line K may include a first guide section K1, a second guide section K2, a third guide section K3, a fourth guide section K4, a fifth guide section K5, and a sixth guide section K6 that are sequentially connected end to end, that is, the guide track line K is in a closed ring shape, and the guide slot is a ring-shaped closed slot, so as to effectively limit the movement of the second hinge shaft 42 and the third hinge shaft 43, and simultaneously prevent the second hinge shaft 42 and the third hinge shaft 43 from being separated from the guide slot. The connection point of the sixth guiding segment K6 and the first guiding segment K1 is denoted as a first connection position a, the connection point of the first guiding segment K1 and the second guiding segment K2 is denoted as a second connection position b, the connection point of the second guiding segment K2 and the third guiding segment K3 is denoted as a third connection position c, the connection point of the third guiding segment K3 and the fourth guiding segment K4 is denoted as a fourth connection position d, the connection point of the fourth guiding segment K4 and the fifth guiding segment K5 is denoted as a fifth connection position e, and the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as a sixth connection position f. In this embodiment, the guide groove surrounds the guide centroid O, and the first guide section K1, the second guide section K2, the third guide section K3, the fourth guide section K4, and the fifth guide section K5 are all convex in a direction away from the guide centroid O, and the sixth guide section K6 is convex in a direction close to the guide centroid O, so that the guide track line K is smoothly transited from the fifth connection position e to the first connection position a. It should be noted that, in the present embodiment, the relationship between the guide portion 50 and the guide portion 60 and the door body 30 in the first embodiment is rotated by a corresponding angle, so that the positional relationship between the guide portion 50 and the guide portion 60 and the door side wall 32 and the door front wall 31 of the door body 30 in the second embodiment is changed (see fig. 50), which is not described herein.

In the second embodiment, when the door body 30 is closed, the first hinge shaft 41 is located at the fourth guiding position I4 of the guiding track S near the door sidewall 32, the second hinge shaft 42 is matched with the second guiding section K2, and the third hinge shaft 42 is matched with the fourth guiding section K4.

In the second embodiment, the first connection position a is located on the side of the fourth guiding position I4 near the door rear wall 33. The second connecting position b is located on the side of the first connecting position a near the door side wall 32 and the door front wall 31, and in the present embodiment, the second connecting position b is located on the side of the fourth guiding position I4 near the door rear wall 33 and the door side wall 32.

The third connecting position c is positioned at one side of the second connecting position b close to the door front wall 31 and far from the door side wall 32;

the fourth connection site d is located on the side of the third connection site c remote from the door rear wall 33 and the door side wall 32, and the fourth connection site d is located on the side of the first connection site a remote from the door side wall 33.

The fifth connection location e is located on the side of the fourth connection location d near the door back wall 33 and away from the door side wall 32, and in this embodiment, the fifth connection location e is located on the side of the first connection location a near the door back wall 33.

The sixth connection location f is located on the side of the fifth connection location e near the door front wall 31 and the door side wall 32. In the present embodiment, the sixth connection position f is located on the side of the first connection position a near the door rear wall 33 and far from the door side wall 33. As an alternative, the sixth connection point f is located on the side of the fourth connection point d adjacent to the door side wall 32 and the door rear wall 33.

That is, in the projection of the plane of the door front wall 31, the second connection position b, the third connection position c, the first connection position a, the sixth connection position f, the fourth connection position d, and the fifth connection position e are sequentially apart from the door side wall 32. In the present embodiment, the third connection position c is closer to the second connection position b than the first connection position a in the projection of the plane of the door front wall 31.

As an alternative, the third connection point c is adjacent to the second connection point b in the projection of the plane of the door front wall 31. It can be provided that, in the projection of the plane of the door front wall 31, the distance between the third connection point c and the second connection point b is less than 4mm, and the distance between the first connection point a and the second connection point b is less than 12mm.

In the projection of the plane of the door side wall 32, the fourth connection position d, the third connection position c, the second connection position b, the first connection position a, the sixth connection position f, and the fifth connection position e are sequentially far from the door front wall 31.

During the opening of the door body 30, the first hinge shaft 41 moves relative to the guide groove, and the second and third hinge shafts 42 and 43 move relative to the guide groove. In the second embodiment, the first central axis I is located at the fourth guiding position I4, the second central axis E is located at E4 with respect to the door 30, and the second central axis F is located at F4 with respect to the door 30 when the door 30 is in the closed state.

As a configurable way, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with the second guide section K2, and the third hinge shaft 43 is in interference fit with the fourth guide section K4, so that the door body 30 is prevented from moving continuously in the closing direction from the closing state, the door body 30 can be prevented from being bounced to be opened after being excessively closed due to excessive force, the door body 30 can be stably stopped in the closing state, and the stability of the door body 30 kept in the closing state is improved.

In the second embodiment, the opening angles of the gate 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8. As shown in fig. 50 to 59, the following 8 angles are used to explain the opening movement of the door 30 in combination with the correlation between the second embodiment and the first embodiment. Wherein q0=0° =g4-G4, q1=g5-G4, q2=g6-G4, q3=g7-G4, q4=g8-G4, q5=g9-G4, q6' =90 °, q6=g10-G4, q7=g11-G4. It should be noted that, in the description of the angular relationship between the angle in the second embodiment and the angle in the first embodiment, only for illustrating and describing the movement situation in the second embodiment, the angle in the second embodiment is not limited by the angular relationship in the above two embodiments.

Referring to fig. 50, when the door 30 is closed, q0=0°, and the first central axis I moves to the fourth guiding position I4 of the guiding track S, the second central axis E is located at E4 with respect to the door 30, the third central axis F is located at F4 with respect to the door 30, i.e., the axis triangle IEF is located at the fourth triangle position I4E4F4 with respect to the door 30.

Referring to fig. 51, when the door 30 is opened to q1=g5-G4, the first central axis I moves to the fifth guiding position I5 of the guiding track line S, the second central axis E is located at E5 with respect to the door 30, the third central axis F is located at F5 with respect to the door 30, i.e. the axis triangle IEF is located at the fifth triangle position I5E5F5 with respect to the door 30.

Referring to fig. 52, when the door 30 is opened to q2=g6-G4, the first central axis I moves to the sixth guiding position I6 of the guiding track line S, the second central axis E is located at E6 with respect to the door 30, and the third central axis F is located at F6 with respect to the door 30, i.e. the axis triangle IEF is located at the sixth triangle position I6E6F6 with respect to the door 30. Wherein Q2<90 °.

Referring to fig. 53, when the door 30 is opened to q3=g7-G4, the first central axis I moves to the seventh guiding position I7 of the guiding track line S, the second central axis E is located at E7 with respect to the door 30, and the third central axis F is located at F7 with respect to the door 30, i.e., the axis triangle IEF is located at the seventh triangle position I7E7F7 with respect to the door 30.

Referring to fig. 54, when the door 30 is opened to q4=g8-G4, the first central axis I moves to the eighth guide position I8 of the guide track line S, the second central axis E is located at E8 with respect to the door 30, and the third central axis F is located at F8 with respect to the door 30, i.e., the axis triangle IEF is located at the eighth triangle position I8E8F8 with respect to the door 30.

Referring to fig. 55, when the door 30 is opened to q5=g9-G4, the first central axis I moves to the ninth guiding position I9 of the guiding track line S, the second central axis E is located at E9 with respect to the door 30, and the third central axis F is located at F9 with respect to the door 30, i.e., the axis triangle IEF is located at the ninth triangle position I9E9F9 with respect to the door 30.

Referring to fig. 56, when the door 30 is opened to q6=90°, the first central axis I moves to the guiding position where the I6 'of the guiding track S is located, the second central axis E is located at E6' with respect to the door 30, and the third central axis F is located at F6 'with respect to the door 30, i.e. the axis triangle IEF is located at the triangle defined by I6' E6 'F6' with respect to the door 30.

Referring to fig. 57, when the door 30 is opened to q6=g10—g4, the first central axis I moves to the tenth guiding position I10 of the guiding track line S, the second central axis E is located at E10 with respect to the door 30, and the third central axis F is located at F10 with respect to the door 30, i.e., the axis triangle IEF is located at the thirteenth angular position I10E10F10 with respect to the door 30.

Referring to fig. 58, when the door 30 is opened to q7=g11-G4, the first central axis I moves to the eleventh guiding position I11 of the guiding track line S, the second central axis E is located at E11 with respect to the door 30, and the third central axis F is located at F11 with respect to the door 30, i.e., the axis triangle IEF is located at the eleventh triangle position I11E11F11 with respect to the door 30.

As the same principle as in the first embodiment, it can be obtained that in the second embodiment, the door body 30 (guide groove/guide groove) is used as a reference, and the case 10 has a displacement parallel to the door rear wall 33 and directed to the side away from the door side wall 32 and a displacement parallel to the door side wall 32 and directed to the door front wall 31, with respect to the door body 30. Depending on the relativity of the movement, with the case 10 as a reference, the door 30 has a displacement parallel to the door rear wall 33 directed toward its door side wall 32 and a displacement parallel to the door side wall 32 and directed away from the door front wall 31 relative to the case 10 during the opening of the door 30 from the closed state to the maximum angle.

In the first embodiment, the displacement parallel to the door rear wall 33 and directed to the door side wall 32 is referred to as the second direction displacement with respect to the case 10. In the second embodiment, the displacement parallel to the door side wall 32 and directed to the side away from the door front wall 31 is referred to as the third-direction displacement。

On the basis of the description of the direction to the door side wall 32 or the direction to the side away from the door side wall 32 in the first embodiment, it should be additionally mentioned that the "side directed away from the door front wall 31" means the direction from the door front wall 31 to the door rear wall 33. In addition, the above second direction displacementThird-direction displacementAre instantaneous relative displacements to account for the current direction of motion of the door 30 relative to the housing 10.

In the following, as in the first principle of the embodiment, a displacement coordinate system AOB stationary with respect to the case 10 is established, and a movement tendency of the door 30 is described in the displacement coordinate system AOB.

(1) As shown in fig. 60 to 61, in the process of opening the door body 30 from the closed state to 90 °, the door side wall 32, the door rear wall 33, and the door front wall 31 are also rotated counterclockwise in the process of opening the door body 30 counterclockwise with respect to the case 10. The door side wall 32 extends outwardly and forwardly in a direction from the second side edge N toward the first side edge W (the door rear wall 33 toward the door front wall 31) and the door rear wall 33 extends inwardly and forwardly in a direction from the door side wall 32 toward the opposite end of the door body 30 from the door side wall 32 in the plane of the top wall of the case 10.

(1.1) Description of the displacement direction of the door 30 relative to the housing 10 during the opening of the door 30 from the closed position to Q2. As can be seen in conjunction with the housing 10 as a reference during the opening of the door 30 from the closed position to Q2, the door 30 has a second direction displacement parallel to the rear door wall 33 and directed toward the door side wall 32And a third directional displacement parallel to the door side wall 32 and directed away from the door front wall 31In the opening phase, i.e. in the second directionDirected to the outer rear side (outward rearward side) of the case 10, the third-direction displacementToward the inner rear side (inward rearward side) of the case 10.

As shown in fig. 60, in the displacement coordinate system AOB, the second direction of the door 30 is displaced during the process of opening the door 30 from the closed state to Q2Is positioned in the fourth quadrant (A >0, B < 0), and the third direction displacementIs located in the third quadrant (A <0, B < 0). For displacement in the second directionAnd a third direction displacementRespectively carrying out displacement decomposition on the A axis and the B axis, and carrying out displacement in the second directionThe partial displacement on the A axis is0, A partial displacement on the B axis of<0, Third direction displacementThe partial displacement on the A axis is<0, A partial displacement on the B axis of<0. Wherein the track feature of the invention is provided withAnd the number of the components is that,=+>0,=+<0. That is, in the track feature of the present invention, the gate 30 has, in the displacement coordinate system AOB, in the process of opening the gate 30 from the closed state to Q20 AndTwo displacement components of < 0. It follows that the door 30 has a tendency to move positively along the a-axis and negatively along the B-axis relative to the case 10, i.e., the door 30 has a tendency to move outwardly and rearwardly relative to the case 10 during the process of opening the closed state of the door 30 to Q2.

In contrast, when the door 30 is closed, the door 30 is displaced in the second direction during the closing process by the angle Q2Parallel to the door rear wall 33 and pointing to a side facing away from the door side wall 32, a third direction displacementParallel to the door side wall 32 and directed towards the door front wall 31;

Displacement in the second direction The partial displacement on the A axis isThe partial displacement on the B axis isThird-direction displacementThe partial displacement on the A axis isThe partial displacement on the B axis isUnder the track feature of the present invention,=+<0;=+>0. That is, the door 30 has a tendency to move in a negative direction along the a-axis and in a positive direction along the B-axis with respect to the case 10 during the closing of the door 30 by the angle Q2, i.e., the door 30 has a tendency to move inward with respect to the case 10 during the closing of the door 30 by the angle Q2.

(1.2) Description of the displacement direction of the door 30 relative to the case 10 in connection with the opening of the door 30 from Q2 to q6deg.90. As can be seen from the description of the displacement direction of the door 30 relative to the case 10 in connection with the opening of the door 30 from Q2 to q6deg.90, the door 30 has a second displacement direction parallel to the rear wall 33 and directed toward the side wall 32 of the door, with the case 10 as a referenceAnd a third directional displacement parallel to the door side wall 32 and directed away from the door front wall 31In the opening phase, i.e. in the second directionDirected to the outer rear side (outward rearward side) of the case 10, the third-direction displacementToward the inner rear side (inward rearward side) of the case 10.

As shown in fig. 61, in the displacement coordinate system AOB, in the process of opening the gate body 30 from Q2 to q6=90°, the second-direction displacement of the gate body 30 is located in the fourth quadrant (a >0, b < 0), and the third-direction displacement is locatedIs located in the third quadrant (A <0, B < 0). For displacement in the second directionAnd a third direction displacementRespectively carrying out displacement decomposition on the A axis and the B axis, and carrying out displacement in the second directionThe partial displacement on the A axis is0, A partial displacement on the B axis of<0, Third direction displacementThe partial displacement on the A axis is<0, A partial displacement on the B axis of<0. Wherein the track feature of the invention is provided withAnd the number of the components is that,=+<0,=+<0. That is, in the track feature of the present invention, in the course of opening the gate 30 from Q2 to q6deg=90°, in the displacement coordinate system AOB, the gate 30 has<0 AndTwo displacement components of < 0. It follows that the door 30 has a tendency to move in the negative direction along the a-axis and in the negative direction along the B-axis with respect to the case 10, i.e., the door 30 has a tendency to move inwardly and backwardly with respect to the case 10 during the process of opening the closed state of the door 30 toward Q2.

(2) As shown in fig. 62, when the door body 30 is opened to 90 °, the door side wall 32 is parallel to the plane of the pick-and-place port and perpendicular to the reference plane M0, and at this time, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane of the pick-and-place port. That is, the door side wall 32 extends from inside to outside and the door rear wall 33 extends from rear to front in a direction from the second side edge N toward the first side edge W with respect to the case 10.

When the door 30 is opened to 90 DEG, the door 30 has a second direction displacement parallel to the door rear wall 33 and directed to the door side wall 32, with the case 10 as a referenceAnd a third directional displacement parallel to the door side wall 32 and directed away from the door front wall 31In the opening angle, i.e. the second directionDirected to the rear side of the case 10, the third direction is displacedToward the inside of the case 10.

As shown in fig. 62, in the displacement coordinate system AOB, the gate body 30 is displaced in the second directionAlong the B axis and pointing in the negative direction of the B axis, the third direction is displacedAlong the a-axis and pointing in the negative direction of the a-axis. Displacement in the second directionThe partial displacement on the A axis is=The partial displacement on the B axis is=<0, Third direction displacementThe partial displacement on the A axis is=<0, A partial displacement on the B axis of=0. Wherein, the =+=<0,=+=<0. That is, when the door 30 is opened to 90 °, the door 30 has, in the displacement coordinate system AOB<0 And<0, It follows that the door 30 has a tendency to move in the negative direction along the a-axis and in the negative direction toward the B-axis with respect to the case 10, i.e., the door 30 has a tendency to move inwardly and backwardly with respect to the case 10 when the door 30 is opened up to 90 °.

(3) As shown in fig. 63, when the door 30 is opened from 90 ° rotation to Q7, the door side wall 32 is also rotated counterclockwise during the opening at this stage during the counterclockwise rotation of the door 30 with respect to the cabinet 10. The door side wall 32 extends outwardly and rearwardly in the plane of the top wall of the case 10 in a direction from the second side edge N toward the first side edge W, and the door rear wall 33 extends outwardly and forwardly in a direction from the door side wall 32 toward the opposite end of the door body 30 from the door side wall 32.

In the above opening process, the door side wall 32 starts to rotate counterclockwise from the state perpendicular to the reference plane M0, the included angle between the door side wall 32 and the plane of the pick-and-place opening gradually increases and the included angle between the door side wall 32 and the reference plane M0 gradually decreases, that is, in the process that the door body 30 is rotated from 90 ° to Q7, the door side wall 32 extends to the side far from the second body side wall and close to the pick-and-place opening along the direction from the second side edge N to the first side edge W relative to the box body 10. Meanwhile, the included angle between the door back wall 33 and the plane of the pick-and-place opening is gradually reduced and the included angle between the door back wall 33 and the reference plane M0 is gradually increased, namely, in the process that the door body 30 is rotated from 90 degrees to Q7, the door back wall 33 extends away from the second body side wall and the pick-and-place opening along the direction from the door side wall 32 to the opposite end of the door side wall 32 on the door body 30 relative to the box body 10.

In the process of opening the door 30 from 90 degrees to Q7, the door 30 has a second direction displacement parallel to the door rear wall 33 and directed to the door side wall 32 by taking the box 10 as a referenceAnd a third directional displacement parallel to the door side wall 32 and directed away from the door front wall 31In the opening phase, i.e. in the second directionDirected to the inner rear side (inward rearward side) of the case 10, the third-direction displacementToward the inner front side (inward forward side) of the case 10.

As shown in fig. 63, in the displacement coordinate system AOB, the second direction of the door 30 is displaced during the process of opening the door 30 from 90 ° to Q7Is located in the third quadrant (A <0, B < 0), and is displaced in the third directionIs located in the second quadrant (A <0, B > 0). For displacement in the second directionAnd a third direction displacementRespectively carrying out displacement decomposition on the A axis and the B axis, and carrying out displacement in the second directionThe partial displacement on the A axis is<0, A partial displacement on the B axis of<0, Third direction displacementThe partial displacement on the A axis is<0, A partial displacement on the B axis of>0. Wherein the track feature of the invention is provided withAnd the number of the components is that,=+<0,=+<0. That is, in the track feature of the present invention, the gate 30 has, in the displacement coordinate system AOB, during the process of opening the gate 30 from 90 DEG to Q7<0 AndTwo displacement components of <0. It follows that the door 30 has a tendency to move in the negative direction along the a-axis and in the negative direction along the B-axis relative to the case 10, i.e., the door 30 has a tendency to move inwardly and rearwardly relative to the case 10 during the 90 ° opening of the closed state of the door 30.

In summary, in the whole process of opening the door 30 from the closed state to Q7, the movement of the door 30 is divided into two stages with respect to the case 10, and the door 30 has a tendency to move outward and then move inward.

In the embodiment, only some angles in the range of 0 to 90 degrees, and some angles in the range of 90 degrees to gmax=q7 are taken as representative to describe the overall movement trend, but the angles can represent the movement trend in the corresponding range, and the hinge assembly with the track characteristics of the present invention can be described to enable the door body 30 to have a movement trend (outward-inward) from front to back in the opening process.

In the second embodiment, the door 30 has a tendency to move outward in the first stage of opening. Specifically, as a way of disposing, in the process of rotating the door body 30 from the closed state to Q2, the second hinge shaft 42 moves away from the door side wall 32 and toward the door front wall 31 relative to the guide groove while the first hinge shaft 41 moves away from the door side wall 32 and toward the door front wall 31 relative to the guide groove, and the third hinge shaft 43 moves away from the door front wall 31 relative to the guide groove. As an alternative, during the above opening process, the third hinge shaft 43 moves relative to the guide groove in a direction away from the door front wall 31 and toward the door side wall 32.

In the second embodiment, the second stage of opening the door 30 has a tendency to move inward, i.e. the door 30 has a tendency to move inward during the continuous opening of Q2. Specifically, as a way of disposing, in the process of opening the door body 30 from Q2 to Q7, the second hinge shaft 42 moves away from the door side wall 32 and toward the door front wall 31 relative to the guide groove while the first hinge shaft 41 moves away from the door side wall 32 and toward the door front wall 31 relative to the guide groove, and the third hinge shaft 43 moves toward the door side wall 32 relative to the guide groove. As an alternative, during the second phase of opening, the third hinge shaft 43 moves relative to the guide slot in a direction away from the door front wall 31 and then in a direction towards the door front wall 31. The arrangement of the inward movement of the door body 30 in the opening process can be suitable for the situation that the refrigerator is placed in the embedded installation of the cabinet, on one hand, the door body 30 can be arranged in the earlier stage of opening the door body 30 so that the inward movement of the door body 30 can effectively compensate the outward displacement of the first side edge W caused by the pure rotation of the door body 30, the distance of the first side edge W exceeding the reference plane M0 is limited not to exceed the distance between the cabinet and the side wall of the refrigerator body, the mutual interference between the cabinet and the cabinet 100 when the door body 30 is opened is effectively avoided, the limitation of the space of the cabinet 100 on the size of the refrigerator can be further reduced, and the utilization rate of the space of the cabinet 100 is improved. On the other hand, in the second embodiment, the door 30 moves inward from the process of opening to the maximum angle, so that the limit of the cabinet to the maximum angle that the door 30 can be opened can be reduced, and the maximum angle that the door 30 of the refrigerator installed in the cabinet can be opened is larger.

It should be noted that, in the second embodiment, the first stage and the second stage may be set independently, without being limited by the motion condition of the other stage, or may be set after the first stage and then the second stage.

As shown in fig. 64 to 71, assuming that the door 30 is rotated about the first central axis I of the former state to an adjacent position of the latter state (the door 30 is indicated by a broken line), the rotation axis of the door 30 is fixed with respect to the door 30 during the movement, the first side edge W is positioned at W ' with respect to the case 10, the second side edge N is positioned at N ' with respect to the case 10, and the side seal edge H is positioned at H ' with respect to the case 10 when the door 30 is opened. Correspondingly, when the door 30 is opened to the latter state (the door 30 is indicated by a solid line) according to the track setting in the present embodiment, the rotation axis of the door 30 is changed with respect to the door 30 compared to the former state, and at this time, the first side edge W is located at W with respect to the case 10, the second side edge N is located at N with respect to the case 10, and the side seal edge H is located at H with respect to the case 10. In fig. 64, the position of the door 30 indicated by the broken line is the position reached when the door 30 is simply rotated to Q1 about the first central axis I (I0) of the door 30 with respect to the door 30 when the door 30 is closed, the position of the door 30 indicated by the solid line is the position reached when the door 30 is rotated to Q1 in the setting of the present invention, the position of the door 30 indicated by the broken line is the position reached when the door 30 is rotated to Q1 in the setting of the present invention, and the position of the door 30 is rotated to Q2 in the first central axis I (I5) of the previous state) with respect to the door 30 when the door 30 is rotated to Q1 in the opening of the present invention, and the position of the door 30 indicated by the solid line is the position of the two different opening modes under different opening angles.

in the process of opening the door body 30 from the closed state to Q2, in the application, the positions W of the first side edges are all positioned at one side of W ' far away from the side wall of the second body and close to the picking and placing opening, the positions N of the second side edges are all positioned at one side of N ' far away from the side wall of the second body and close to the picking and placing opening, and the positions H of the side sealing edges are all positioned at one side of H ' far away from the side wall of the second body and close to the picking and placing opening. That is, the door 30 has a tendency to move outward and backward during the process of opening the door 30 from the closed state to Q2.

In the process of opening the door body 30 from Q2 to Q7, in the application, the positions W of the first side edges are all positioned at one side of W ' close to the side wall of the second body and the picking and placing opening, the positions N of the second side edges are all positioned at one side of N ' close to the side wall of the second body and the picking and placing opening, and the positions H of the side sealing edges are all positioned at one side of H ' close to the side wall of the second body and the picking and placing opening. That is, the door 30 has a tendency to move inward and backward during the process of opening the door 30 from Q2 to Q7.

The movement trend of each stage is consistent with the movement trend of each stage.

Example III

In the third embodiment, as shown in fig. 72 to 76, the refrigerator includes two oppositely disposed door bodies 30, and the two oppositely disposed door bodies 30 cooperate together to open or close the access opening. One side of any one of the two door bodies 30 far away from the door side wall 32 is provided with a side sealing strip 3, wherein when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is in sealing fit with the side sealing strip 3 on the other door body, namely, when the two door bodies 30 are closed, the two side sealing strips 3 are extruded in a gap between the two door bodies 30 to effectively seal the space between the two door bodies 30 and the box body so as to prevent cold air from overflowing.

In combination with the arrangement of the hinge assembly in the second embodiment, the hinge assembly in the present embodiment has the motion characteristic of the first stage (see the stage of opening the door from the closed state to Q2 in the second embodiment, which is not described here again). In the third embodiment, the door 30 moves outwards during the process from the closed state to Q2, so that one of the two oppositely arranged door 30 is prevented from driving the other door 30 to be opened when being opened, thereby effectively reducing the loss of cold energy, and simultaneously effectively reducing the shielding of the door 30 to the access opening.

Example IV

As shown in fig. 72 to 76, the refrigerator in the fourth embodiment is also provided with two oppositely disposed door bodies 30, and the two oppositely disposed door bodies 30 cooperate together to open or close the access opening. One side of any one of the two door bodies 30 far away from the door side wall 32 is provided with a side sealing strip 3, wherein when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is in sealing fit with the side sealing strip 3 on the other door body, namely, when the two door bodies 30 are closed, the two side sealing strips 3 are extruded in a gap between the two door bodies 30 to effectively seal the space between the two door bodies 30 and the box body so as to prevent cold air from overflowing. The arrangement mode is the same as that of the embodiment.

Unlike the third embodiment, the refrigerator of the fourth embodiment may be adapted to a case of being embedded in a cabinet as shown in fig. 77.

Specifically, unlike the third embodiment, in combination with the arrangement of the hinge assembly in the second embodiment, the hinge assembly in the fourth embodiment has the overall motion characteristics of the first stage and the second stage (see the second embodiment, which is not described herein). I.e. the door 30 moves in a first stage outwardly moving manner and then in a second stage inwardly moving manner during the opening process.

Specifically, in the fourth embodiment, the door 30 is moved outward during the process of opening from the closed state of the door 30 to Q2. The door 30 has a tendency to move inward during the continued opening by Q2. Above setting, on the one hand can be at the door body 30 open the initial stage outside removal in order to avoid driving another door body 30 to open, reduce the cold energy loss. On the other hand, the opened door body 30 can move inwards after the two door bodies 30 are separated, so that the outward displacement of the first side edge W caused by the pure rotation of the door body 30 can be effectively compensated, the distance of the first side edge W exceeding the reference plane M0 is limited not to exceed the distance between the cabinet and the side wall of the refrigerator body, the mutual interference between the door body 30 and the cabinet 100 is effectively avoided, the limitation of the cabinet 100 space on the size of the refrigerator can be further reduced, and the utilization rate of the cabinet 100 space is improved. Furthermore, the door 30 is kept moving inwards in the process of opening to the maximum angle, so that the limit of the cabinet to the maximum angle that the door 30 can be opened can be reduced, and the maximum angle that the door 30 of the refrigerator installed in the cabinet can be opened is larger.

In some embodiments of the application, Q2 is any one of 10-15.

Example five

As shown in fig. 78 to 82, in the fifth embodiment, the refrigerator includes two oppositely disposed door bodies 30, and the two oppositely disposed door bodies 30 cooperate together to open or close the access opening. When the two door bodies 30 are closed, the overturning beam 9 is arranged on the lining surface of one door body 30, which is close to one side of the other door body 30. The top wall of the storage chamber of the refrigerator is provided with a guide rail 91, and the turnover beam 9 can be in sliding fit with the guide rail 91 so as to realize the switching of different angles of the turnover beam 9 relative to the door body 30. When the two door bodies 30 are closed, the turnover beam 9 seals the gap between the two door bodies 30 and the box body 10, so as to effectively prevent the cool air from overflowing.

Specifically, the turnover beam 9 includes a door turnover beam rear cover, the door turnover beam rear cover is connected to the door body 30 through a first door hinge and a second door hinge, and the door turnover beam rear cover and the two door hinges are respectively elastically connected by torsion springs, wherein the first door hinge is located above the second door hinge. Wherein, the top of lid has set firmly guide block 90 behind the door beam, and guide block 90 cooperatees with the guided way 91 as the rotating member of upset roof beam 9 in order to realize the switching of the different angles of upset roof beam 9 relative to door body 30.

The door hinge and the door rotating beam rear cover are respectively provided with a through hole penetrating through the torsion spring arm, and the torsion springs are used for connecting the upper door hinge and the lower door hinge with the door rotating beam rear cover. The door hinge and the door beam rotating rear cover are connected through a first torsion spring, and the door hinge and the door beam rotating rear cover are connected through a second torsion spring. When the turnover beam 9 rotates around the door hinge, the first torsion spring and the second torsion spring store elastic energy or release the elastic energy, so that the door turnover beam rear cover stably rotates and resets in time.

In the opened state of the door body 30, the turnover beam 9 is tightly attached to the door hinge fixed to one side of the inner liner of the door body 30 due to torsion forces (first torsion spring and second torsion spring) of torsion springs.

As shown in fig. 81 to 82, when the door 30 is closed from the open state, an external force is applied to the door 30, the door 30 is gradually closed by the external force, and when the door 30 is closed to the angle GS, the guide block 90 at the top end of the turnover beam 9 contacts the guide rail 91.

When the door body 30 is closed to the angle GS, external force is continuously applied, the door body 30 is continuously moved in the closing direction, the topmost guide block 90 of the turnover beam 9 enters the guide rail 91, and the guide block 90 interacts with the guide rail 91. During this closing process, the torsion spring is compressed in the radial direction as the guide block 90 starts to turn under the pressure of the guide rail 91, and reaches the critical value of the torsion spring when the turn beam 9 turns over G' F. The torsion spring then begins to extend to release the torsion of the torsion spring to cause the roll-over beam 9 to roll over quickly into position until the door 30 is closed, at which time the torsion of the torsion spring is released and the relaxed state is re-reached. After the door body 30 is closed, the turnover beam 9 contacts with a seal arranged on the door body 30, so that the cold air is effectively prevented from overflowing between two opposite-opening type butt joints. If the external force is removed before the turnover beam 9 turns to G' F, the torsion of the torsion spring does not reach the critical value of the torsion spring, so that the guide block 90 at the top of the turnover beam cannot effectively complete the turnover and is blocked after entering the guide rail 91 on the box body, and the turnover beam cannot automatically complete the turnover, so that the door body 30 with the turnover beam cannot be closed in place, and the low-temperature storage of the refrigerator fails.

In the fifth embodiment, the first hinge member is located at a first mating portion of one end of the first hinge member, which is far away from the first body side wall, and a second mating portion is disposed at an end of the door body 30, which is close to the first hinge member, and the second mating portion is used for mating with the first mating portion to lock and unlock the door body 30 and the box body 10. As an alternative, the second mating portion is located on a side of the second hinge member remote from the door sidewall 32.

When the door body 30 is closed in an open state, an external force is firstly applied to the door body 30, the door body 30 is gradually closed under the action of the external force, and along with the rotation of the door body 30, the free end of the second matching part is gradually close to the first matching part.

When the door body 30 is closed to an angle GB0, the second matching part is abutted against the first matching part, then the door body 30 is continuously closed under the action of external force, the first matching part and the second matching part interact, the second matching part is elastically deformed, under the combined action of the external force and the acting force of the first matching part, the second matching part and the first matching part gradually approach each other, and the elastic deformation of the second matching part gradually increases.

When the door 30 is closed to the angle GB1, the elastic deformation amount of the second mating portion reaches the maximum deformation amount during the closing process of the door 30.

When the door body 30 is closed to reach the angle GB1, the door body continues to move along the closing direction, the elastic energy stored by the earlier deformation of the second matching part is released, the second matching part is combined with the acting force of the first matching part, the second matching part is restored to a relaxed state, the door body 30 is quickly and automatically closed in place until the door body 30 is closed, and the second matching part is locked with the first matching part, so that the door body 30 and the box body 10 are locked. Above, GB0> GB1. As a settable mode, GB0 is set to any one of 15 DEG to 20 DEG, and GB1 is set to any one of 3 DEG to 8 deg. In summary, after the door 30 is closed to reach GB1, the door 30 can be automatically closed under the interaction of the first mating portion and the second mating portion.

It should be noted that, in the above closing process of the door body 30, after the external force continuously acts on the door body 30 to close to GB1, that is, after the door body 30 rotates to close to the second mating portion, the elastic deformation amount is maximum, the external force is removed, and the door body 30 can automatically complete the overturning. The external force is removed after the door 30 is closed to GB1, and the door 30 has an inertial force, which also has a characteristic of keeping the door 30 in the original closed movement trend.

In summary, the second engaging portion is elastically deformed under the combined action of the external force and the first engaging portion during the process of closing the door 30 from the angle GB0 to the angle GB 1.

When the door body 30 is closed to GB1, the second mating portion is elastically deformed to reach the maximum deformation amount during the closing process of the door body 30.

In the process of the door body 30 from GB1 to the closed state, the external force is removed, the elastic force of the second matching part is released, and the door body 30 is quickly and automatically closed.

That is, in the fifth embodiment, with the arrangement of the first engaging portion and the second engaging portion, the door 30 has the characteristic of being automatically closed in the process from GB1 to the closed state.

In combination with the arrangement of the hinge assembly in the second embodiment, the hinge assembly in the present embodiment has the motion characteristic of the first stage (see the stage of opening the door from the closed state to Q2 in the second embodiment, which is not described here again). That is, in the fifth embodiment, the door 30 moves outward during the process of opening from the closed state to Q2. Correspondingly, the door 30 has a tendency to move inwardly during the closing of the door 30 from Q2 to the closed state.

As a settable way, GB1> Q2. I.e. during the automatic closing phase (during continued closing by GB 1) the door 30 has a tendency to move inwards during closing by angle Q2, the door 30 moves inwards, exerting an inwards force on the turn-over beam 9, which force urges the turn-over beam to turn over. In this embodiment, the door 30 has an automatic closing property in the process of being continuously closed by GB1, and the door 30 keeps moving inward, so that the inward movement of the door 30 always applies an inward force to the turnover beam 9, which can ensure that the turnover beam 9 is turned in place, so that the door 30 is closed in place, and cold leakage caused by the fact that the turnover beam 9 is not turned in place is avoided.

In some embodiments of the present application, referring to fig. 83 to 86, the door body 30 includes a mounting block mounted on the door body 30 at a position opposite the hinge plate 40. The mounting block is formed with a guide portion 50, a guide portion 60, and a second mating portion. The first mating portion is formed on a side of the extension 402 of the hinge plate 40 remote from the door sidewall 32.

With particular reference to fig. 83-86, door body 30 has door end cap 38. In this embodiment, an installation block provided at the lower end of the door body 30 will be described as an example. With reference to 83-86, the mounting block is formed with a guide groove, wherein the guide groove comprises a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom. Wherein, the tank bottom of the guiding groove is provided with a guiding groove, and the circumferential groove wall of the guiding groove defines a guiding track line K. The door body 30 includes a door end cover 38, and an accommodating groove 37 is formed in the door end cover 38, and the accommodating groove 37 is used for fixing the mounting block. As an embodiment, the mounting block is placed in the receiving groove 37, and then the mounting block is fastened to the door body 30 by the first fixing member. Specifically, the first fixing member may be provided as a screw or the like.

As an embodiment, the mounting block includes a plate body 81, and the plate body 81 is disposed around the outer circumferential side wall of the guide groove. In this embodiment, the first fixing member connecting the mounting block and the accommodation groove 37 fixedly connects the plate body 81 with the door body 30. A plurality of first fixing members may be provided and distributed around the guide groove.

As one way of arrangement, a first accommodating portion recessed toward the inner cavity of the door body 30 is formed on one side of the bottom wall of the accommodating groove 37 near the door side wall 32, the guide groove is at least partially accommodated in the first accommodating portion, the bottom of the guide groove is matched with the inner wall of the first accommodating portion, and the plate 81 is matched with the bottom wall of the accommodating groove 37 to effectively limit the position of the guide groove.

As an alternative, a second receiving portion recessed toward the inner cavity of the door body 30 is formed on the bottom wall of the cavity of the first receiving portion. The guide groove is arranged in the second accommodating part and matched with the inner wall of the second accommodating part so as to limit the guide groove.

In some embodiments of the application, the second mating portion on the mounting block is configured as a locking structure, and in particular, the second mating portion includes a latch hook 82 provided on a side of the plate 81 remote from the door sidewall 32. The latch hook 82 extends to a side away from the door side wall 32 and is formed by bending to a side close to the door rear wall 33 and the door side wall 32, an opening of the latch hook 82 faces the plate 81 (an opening of the latch hook 82 faces the door side wall 32), and a free end of the latch hook 82 is located at a side thereof close to the door rear wall 33.

The first engaging portion provided on the hinge plate 40 at a side away from the first body sidewall is provided as a stopper portion 403, and a hooking gap 404 is formed at a side of the stopper portion 403 near the case 10. When the door body 30 is in a closed state, the free end of the lock hook 82 is accommodated in the hooking gap 404, the stop part 403 is positioned in the lock hook 82, the lock hook 82 on the door body 30 hooks the stop part 403 on the hinge plate 40, so that the door body 30 is locked, the influence on the refrigerating and freezing effects of the refrigerator due to the fact that the door body 30 is not tightly closed is avoided, and when the door body 30 is opened, the lock hook 82 is deformed under the stress to overcome the blocking of the stop part 403, so that the stop part 403 is separated.

The latch hook 82 may include a root 83 and a hooking portion 84. The root portion 83 is connected to the plate 81, and the hooking portion 84 is connected to the root portion 83 and bent toward the door rear wall 33 and the door side wall 32. The screw penetrates through the root connection portion 83 and is connected with the door body 30 to strengthen the connection strength of the root connection portion 83 and the door body 30, so that the latch hook 82 only deforms at the hooking portion 84 when being separated from the stop portion 403.

The free ends of the hooking portion 84 and the stopping portion 403 are arc-shaped, which is beneficial for the hooking portion 84 to smoothly hook the stopping portion 403 along an arc or separate from the stopping portion 403.

As shown in fig. 84 to 86, when the door 30 is closed from the open state, the door 30 is gradually closed by the external force, and the free end of the hooking portion 84 gradually approaches the stop portion 403 as the door 30 is rotated to be closed. When the door 30 is closed to GB0, as shown in fig. 85, the hooking portion 84 abuts against the stop portion 403, and then the door 30 is continuously closed under the action of an external force, the stop portion 403 interacts with the hooking portion 84, the hooking portion 84 is elastically deformed, and under the combined action of the external force and the force of the stop portion 403, the movable hooking portion 82 gradually enters the hooking gap 404 (i.e., the stop portion 403 enters the hooking portion 84), as shown in fig. 86, when the door 30 is closed to GB1, the elastic deformation of the hooking portion 84 reaches the maximum deformation of the door 30 during closing. When the door 30 is closed to GB1, the elastic energy stored by the deformation of the hooking portion 82 at the early stage is gradually released, and under the combined action of the force of the stopping portion 403, the hooking portion 84 is restored to the relaxed state, and drives the hooking portion 82 to further enter the hooking gap 404, so that the door 30 is quickly and automatically closed in place until the door 30 is closed, and the latch hook 82 is locked with the hinge plate 40, thereby locking the door 30 and the box 10. That is, after the door 30 is closed to GB1, the door 30 has an automatic closing characteristic.

Example six

As shown in fig. 78-82, the refrigerator in the sixth embodiment also includes two oppositely disposed door bodies 30, and the two oppositely disposed door bodies 30 cooperate together to open or close the access opening. When the two door bodies 30 are closed, the overturning beam 9 is arranged on the lining surface of one door body 30, which is close to one side of the other door body 30. The top wall of the storage chamber of the refrigerator is provided with a guide rail 91, and the turnover beam 9 can be in sliding fit with the guide rail 91 so as to realize the switching of different angles of the turnover beam 9 relative to the door body 30. When the two door bodies 30 are closed, the turnover beam 9 seals the gap between the two door bodies 30 and the box body 10, so as to effectively prevent the cool air from overflowing. The arrangement is the same as that of the fifth embodiment.

In addition, in the fifth embodiment, the first engaging portion and the second engaging portion that are engaged with each other to lock the door 30 and the case 10 when the door 30 is closed are also provided in the sixth embodiment. (the same manner as in the fifth embodiment)

And satisfies GB1> Q2. That is, the door body 30 has a tendency to move inward during the automatic closing (during the continued closing by GB 1), and the turnover beam 9 can be ensured to be turned into place, so that the door body 30 is closed into place.

Unlike the fifth embodiment, as shown in fig. 87, the refrigerator of the sixth embodiment is applicable to a scene embedded in a cabinet.

Specifically, unlike the fifth embodiment, in combination with the arrangement of the hinge assembly in the second embodiment, the hinge assembly in the sixth embodiment has the overall motion characteristics of the first stage and the second stage in the second embodiment (see the second embodiment and will not be repeated here). I.e. the door 30 moves in a first stage outwardly moving manner and then in a second stage inwardly moving manner during the opening process.

Specifically, in the sixth embodiment, the door 30 is moved outward during the process of opening from the closed state of the door 30 to Q2. I.e., the door 30 has a tendency to move inwardly during the closing of the door by Q2. And the door 30 has a tendency to move inward during the continued opening by Q2. By the arrangement, on one hand, the door body 30 can have the trend of being automatically closed and moving inwards in the process of being closed by the angle Q2, the turnover beam 9 can be ensured to be turned to the right position, the door body 30 is closed in the right position, and the cold energy loss is avoided. On the other hand, in the opening process of the door body 30, after the door body 30 moves outwards for a certain distance, the door body 30 starts to move inwards from Q2, so that the outwards displacement of the first side edge W caused by the pure rotation of the door body 30 can be effectively compensated, the distance of the first side edge W exceeding the reference plane M0 is limited, the distance between the cabinet and the side wall of the refrigerator body is not exceeded, the mutual interference between the door body 30 and the cabinet 100 is effectively avoided, the limitation of the size of the refrigerator which can be accommodated by the space of the cabinet 100 is further reduced, and the utilization rate of the space of the cabinet 100 is improved. Furthermore, the door 30 is kept moving inwards in the process of opening to the maximum angle, so that the limit of the cabinet to the maximum angle that the door 30 can be opened can be reduced, and the maximum angle that the door 30 of the refrigerator installed in the cabinet can be opened is larger.

In some embodiments of the application, Q2 is any one of 10-15.

In summary, the embodiments one to six of the present invention have been described in terms of a plurality of aspects, and the differences between the embodiments are mainly described, and the description of the same points is not excessive. It should be added that, as the arrangement of the first hinge member and the second hinge member that accurately control the door body 30 to rotate and open and move in a specific direction, to form a structural arrangement having various track features, it is necessary to achieve the coordinated cooperation of the first hinge member and the second hinge member through a fine design, and finally, the door body 30 is accurately controlled to perform complex movement.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. The illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A refrigerator, characterized in that it comprises:

the hinge assembly includes:

2. The refrigerator of claim 1, wherein:

the part of the end part of the door body, which is close to the side wall of the door, is recessed to one side of the inner cavity of the door body to form a mounting table;

3. The refrigerator of claim 2, wherein a central axis of the first hinge shaft is denoted as a first central axis I, a central axis of the second hinge shaft is denoted as a second central axis E, and a central axis of the third hinge shaft is denoted as a third central axis F;

4. The refrigerator of claim 3, wherein the angle of the included angle formed by the edge IF and the edge IE in the axis triangle IEF taking the vertex I as the vertex is any value of 172 DEG to 178 deg.

5. The refrigerator of claim 3, wherein the longest side EF of the shaft triangle IEF is located on a side of an apex I of the shaft triangle IEF away from the pick-and-place port in a projection of a plane in which a top wall of the refrigerator body is located.

6. The refrigerator of any one of claims 3-5, wherein in a projection of a plane of the top wall of the refrigerator body, a straight line IE of the first central axis I and the second central axis E is parallel to the pick-and-place opening, and the third central axis F is located at a side of the straight line IE of the first central axis I and the second central axis E away from the pick-and-place opening.

7. The refrigerator as claimed in any one of claims 1 to 5, wherein the guide track line is parallel to the door front wall, and the first hinge shaft moves in a direction parallel to the door front wall with respect to the door body during the opening of the door body.

8. The refrigerator of claim 1 or 2 or 3 or 4 or 5, wherein the centroid of the guide track line is denoted as guide centroid O, the guide track line encircling the guide centroid O thereof;

9. The refrigerator of claim 1 or 2 or3 or 4 or 5 wherein a plane passing through a centroid of the door body and parallel to the door front wall is denoted as a centroid plane P;

wherein G' 1:Gmax is any value of 0.8-1.

10. The refrigerator of claim 1,2,3, 4 or 5, wherein the door body has a door rear wall disposed opposite the door front wall, the door rear wall intersecting the door side wall to form a second side edge N;