CN222617312U - Air duct assembly and refrigeration equipment with same - Google Patents

Abstract

The present application discloses an air duct assembly and a refrigeration device having the same, wherein the air duct assembly includes a shell, a volute and a fan, wherein the shell has an air duct, an air outlet of the air duct is arranged on the shell, the volute and the fan are both located in the air duct, the fan is arranged in the volute, the volute has an exhaust port, the exhaust port faces the air outlet, the air outlet extends along a first direction and has a center line L1 in the first direction, the exhaust port has a center line L2 in the first direction, and L1 and the axis of the fan are respectively located on both sides of L2. The present application can realize the directional transport of cold, and through the relative position setting of the air outlet, the fan and the volute, the cold discharged from the volute exhaust port can be concentrated to the area opposite to the air outlet and the volute exhaust port, thereby improving the uniformity of the cold discharged from the air outlet to the outside of the shell along the first direction.

Description

Air duct assembly and refrigeration equipment with same

Technical Field

The application relates to the technical field of refrigeration, in particular to an air duct assembly and refrigeration equipment with the same.

Background

The refrigeration equipment is used for storing and preserving vegetables, foods, beverages and other articles due to the refrigeration function, is widely applied to shops, supermarkets and families, and is continuously developed towards a large volume direction.

However, in the large-volume refrigeration equipment, the space in the storage compartment is larger, the temperature of the area close to the cold source is lower, the temperature of the area far away from the cold source is relatively higher, and especially the temperature of the area close to the opening of the storage compartment is relatively higher, so that the uniformity of the temperature distribution in the storage compartment is poor, and the objects stored in the storage compartment cannot be effectively preserved.

Disclosure of Invention

The application aims to provide an air duct assembly and refrigeration equipment with the same, so as to solve the problem of poor indoor temperature distribution uniformity between storage rooms of the refrigeration equipment.

In order to achieve one of the above objects, an embodiment of the present application provides an air duct assembly, including a housing, a volute and a fan, wherein an air duct is provided in the housing, an air outlet of the air duct is provided on the housing, the volute and the fan are both located in the air duct, the fan is provided in the volute, the volute has an air outlet, the air outlet faces the air outlet, the air outlet extends along a first direction and has a central line L1 in the first direction, the air outlet has a central line L2 in the first direction, and the axes of the air outlet and the fan are respectively located at two sides of L2.

As a further improvement of an embodiment of the present application, the air outlet includes a first end and a second end disposed opposite to the first end along the first direction, the housing includes a first edge and a second edge disposed opposite to the first edge along the first direction, and in the first direction, the axis of the fan is located on a side of the second end facing the first edge.

As a further improvement of an embodiment of the present application, the housing includes a first side and a second side opposite to the first side along the first direction, and an end of the fan near the first side is located on L2, or an end of the fan near the first side is located on a side of L2 facing the first side.

As a further improvement of an embodiment of the present application, the air outlet includes a first end and a second end disposed opposite to the first end along the first direction, the housing includes a first edge and a second edge disposed opposite to the first edge along the first direction, and a distance D1 from the first end to the first edge is less than a distance D2 from the second end to the second edge.

As a further improvement of one embodiment of the application, the ratio of D1 to D2 is 3:5-3:7.

As a further improvement of an embodiment of the present application, the dimension of the housing along the first direction is D, and the ratio of D2 to D is 5:18 to 7:18.

As a further improvement of an embodiment of the present application, the housing includes a first side and a second side disposed opposite to the first side along the first direction, and a distance D3 from the axis of the fan to the first side > a distance D4 from the axis of the fan to the second side.

As a further improvement of an embodiment of the present application, the volute includes a third end and a fourth end disposed opposite to the third end along the first direction, and a distance D5 from an axis of the blower to the third end > a distance D6 from the axis of the blower to the fourth end.

To achieve one of the above objects, an embodiment of the present application further provides an air duct assembly, including a housing, a volute and a fan, wherein an air outlet of the air duct is disposed on the housing, the volute and the fan are both disposed in the air duct, the fan is disposed in the volute, the volute has an air outlet, the air outlet extends along a first direction, the air outlet includes a first end and a second end disposed opposite to the first end along the first direction, the housing includes a first side and a second side disposed opposite to the first side along the first direction, a distance D1 from the first end to the first side is less than a distance D2 from the second end to the second side, a distance D3 of an axis of the fan to the first side is greater than a distance D4 from an axis of the fan to the second side, the air outlet includes a third end and a distance D6 from an axis of the fan to the third end disposed opposite to the first end along the first direction.

To achieve one of the above objects, an embodiment of the present application further provides a refrigeration apparatus including the air duct assembly as described above.

Compared with the prior art, the air duct assembly and the refrigeration equipment with the same can discharge the cold energy in the air duct from the air outlet through the air outlet of the volute, so that the directional conveying of the cold energy is realized, and the cold energy discharged from the air outlet of the volute can be concentrated to the area where the air outlet is opposite to the air outlet of the volute through the relative position arrangement of the air outlet, the fan and the volute, so that the uniformity of the distribution of the cold energy discharged from the air outlet to the outside of the shell along the first direction can be improved.

Drawings

Fig. 1 is a schematic perspective view of a refrigeration apparatus according to an embodiment of the present application;

Fig. 2 is a schematic perspective view of a refrigeration appliance according to an embodiment of the present application, which illustrates a state in which a door body is removed;

FIG. 3 is a top view of a refrigeration appliance according to an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

FIG. 6 is a schematic diagram of an assembly structure of a duct assembly and a return air member in a refrigeration apparatus according to an embodiment of the present application;

FIG. 7 is a schematic view of a duct assembly according to an embodiment of the present application;

FIG. 8 is a schematic view of an alternative angle of the duct assembly according to an embodiment of the present application;

FIG. 9 is a schematic view of an alternative angle of the duct assembly illustrating removal of the cover plate according to an embodiment of the present application;

FIG. 10 is a schematic view of the structure of FIG. 9 at another angle, wherein the direction indicated by the arrow is the first direction;

FIG. 11 is a schematic view of an alternative angle of the duct assembly of an embodiment of the present application, illustrating the removal of the base;

FIG. 12 is a schematic view of the structure of FIG. 11 at another angle, wherein the direction indicated by the arrow is the first direction;

FIG. 13 is a simulation test diagram of a duct assembly according to an embodiment of the present application.

Reference numerals illustrate:

100. The refrigerating equipment comprises a refrigerating device body, a refrigerating device 1, a box body, an inner container, 111, a first wall, 112, a second wall, 113, a third wall, 12, a box shell, 2, a door body, 3, a storage compartment, 4, an evaporation tube, 5, an air duct assembly, 51, a shell, 511, an air outlet, 5111, a first end, 5112, a second end, 512, an air inlet, 513, a first side, 514, a second side, 515, a base, 516, a cover plate, 517, an air inlet cavity, 518, an air outlet cavity, 52, a volute, 521, an air outlet, 522, an air inlet, 523, a third end, 524, a fourth end, 53, a fan, 531, a rotating shaft, 54, an air guide piece, 541, an air vent, 542, a first guide portion, 543, a second guide portion, 544, a connecting portion, 545, an air guide inclined surface, 6, an air return piece, 61 and an air return opening.

Detailed Description

The present application will be described in detail below with reference to specific embodiments shown in the drawings.

In the various illustrations of the application, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for convenience of illustration, and thus serve only to illustrate the basic structure of the inventive subject matter.

It should be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, structures or parameters, these described objects should not be limited by these terms. These terms are only used to distinguish one such descriptive object from another.

Referring to fig. 1 to 3, an embodiment of the present application provides a refrigeration apparatus 100 including a cabinet 1, a door 2, and a refrigeration unit, wherein the cabinet 1 has a storage compartment 3, the storage compartment 3 has an opening, and the door 2 is used to open or close the opening of the storage compartment 3.

The refrigerating apparatus 100 in the present embodiment is a direct-cooling refrigerating apparatus 100, that is, uses a direct-cooling mode to cool the articles stored in the storage compartment 3. The refrigeration device 100 may be specifically configured as a refrigerator, freezer, wine cabinet, etc., and particularly as a large-volume refrigeration device 100. In the present embodiment, the refrigerating apparatus 100 is described as an example of a horizontal refrigerator.

Specifically, the refrigerating unit comprises a compressor, a condenser, a throttling device and an evaporator which are sequentially connected.

Referring to fig. 4 to 5, the case 1 includes a liner 11 and a case 12 disposed outside the liner 11, the liner 11 defines a storage compartment 3, the evaporator includes an evaporation tube 4 wound around the outer circumference of the liner 11, and the evaporation tube 4 transfers cooling energy into the storage compartment 3 through the liner 11 by natural radiation, thereby refrigerating the articles stored in the storage compartment 3.

The natural radiation refrigeration mode that the evaporation tube 4 is wound on the periphery of the inner container 11 transfers cold energy from the inner container 11 to the middle area of the storage compartment 3, however, the space in the storage compartment 3 is usually larger, so that the temperature difference of each area in the storage compartment 3 is larger, the temperature uniformity is poorer, the storage compartment 3 is provided with an opening, especially when the door body 2 is opened, the cold energy at the opening of the storage compartment 3 is more dissipated outwards, the temperature of the area close to the opening of the storage compartment 3 is obviously higher than that of the area close to the inner container 11, and the temperature in the storage compartment 3 is more serious.

Referring to fig. 2, the refrigeration device 100 further includes an air duct assembly 5, the air duct assembly 5 is disposed in the storage compartment 3, and the air duct assembly 5 is connected with the inner container 11, so that the cooling capacity generated by the evaporating tube 4 can be conveyed to a region, far away from the inner container 11, in the storage compartment 3 through the air duct assembly 5, and the temperature uniformity in the storage compartment 3 is improved.

Specifically, referring to fig. 6 to 12, the air duct assembly 5 includes a housing 51, a scroll case 52 and a fan 53, an air duct is provided in the housing 51, an air outlet 511 of the air duct is provided on the housing 51, the scroll case 52 and the fan 53 are both located in the air duct, the fan 53 is provided in the scroll case 52, the scroll case 52 has an air outlet 521, the air outlet 521 faces the air outlet 511, so that the cooling capacity in the air duct can be discharged from the air outlet 511 through the air outlet 521 of the scroll case 52 by the fan 53, thereby realizing directional transportation of the cooling capacity.

Referring to fig. 10, the air outlet 511 extends along a first direction, and the air outlet 511 has a central line L1 in the first direction, and the air outlet 521 has a central line L2 in the first direction. The blower 53 has a rotation shaft 531, and the blower 53 rotates around its rotation shaft 531, in other words, the blower 53 has an axis, which is the center line of the rotation shaft 531, and the blower 53 rotates around its axis. The axes of the fan 53 and the fan L1 are located on both sides of the fan L2.

In this way, after the fan 53 sends out the cold air through the air outlet 521 of the scroll case 52, since the relative positions of the air outlet 511 and the air outlet 521 of the scroll case 52 are offset, the air resistance of the area of the air duct on the side of the L2 toward the rotation axis 531 of the fan 53 is large, and the speed of the cold air discharged from the air outlet 521 flowing toward the area of the air duct on the side of the L2 toward the rotation axis 531 of the fan 53 is reduced, the cold air discharged from the air outlet 521 can be concentrated toward the area of the air outlet 511 opposite to the air outlet 521 of the scroll case 52. That is, by arranging the air outlet 511, the fan 53 and the scroll case 52 at the opposite positions, the cooling capacity discharged from the air outlet 521 of the scroll case 52 can be concentrated to the area of the air outlet 511 opposite to the air outlet 521 of the scroll case 52, and the uniformity of the cooling capacity discharged from the air outlet 511 to the outside of the housing 51 along the first direction can be improved.

According to the classification, requirement and test conditions of the 2 nd part of the refrigeration showcase of GB/T21001.2-2015, when the simulation test is carried out, as shown in figure 13, the influence of the relative positions of the air outlet 511, the volute 52 and the fan 53 can be obviously seen, the wind field between the air outlet 521 of the volute 52 and the air outlet 511 is changed, the air outlet direction is deflected, the air tends to be discharged towards the position where the air outlet 511 is opposite to the air outlet 521 of the volute 52, and after the cold energy is discharged from the air outlet 511 to the storage compartment 3, the uniformity of the distribution of the cold energy discharged from the air outlet 511 to the outside of the shell 51 along the first direction can be improved.

In the present embodiment, L1 is perpendicular to the opening direction of the storage compartment 3, that is, the air outlet 511 extends in a direction perpendicular to the opening direction of the storage compartment 3.

Referring to fig. 9, in an embodiment, an air inlet 512 is further disposed on the housing 51, and the air duct communicates with the air inlet 512 and the air outlet 511. The air duct comprises an air inlet duct and an air outlet duct, wherein the air inlet duct is communicated with the air inlet 512 and the volute 52, and the air outlet duct is communicated with the volute 52 and the air outlet 511.

Referring to fig. 10, in the present embodiment, the air outlet 511 includes a first end 5111 and a second end 5112 disposed opposite to the first end 5111 along the first direction, the housing 51 includes a first edge 513 and a second edge 514 disposed opposite to the first edge 513 along the first direction, a distance D1 from the first end 5111 to the first edge 513 is provided, and a distance D2 from the second end 5112 to the second edge 514 is provided, wherein D1< D2 is provided. That is, in the first direction, the air outlet 511 is disposed closer to the first side 513.

In this embodiment, the distance from the axis of the fan 53 to the first side 513 is D3, and the distance from the axis of the fan 53 to the second side 514 is D4, D3> D4. That is, in the first direction, the blower 53 is disposed closer to the second side 514.

By the arrangement, the space in the shell 51 can be effectively utilized, the relative positions among the air outlet 511, the fan 53 and the volute 52 can be reasonably arranged, and a better air outlet effect can be achieved.

In this embodiment, the fan 53 is a turbo fan, the fan 53 has an axial air inlet side, that is, the fan 53 is axially inlet air from the axial air inlet side and radially outlet air from the axial air inlet side, the axis of the fan 53 is perpendicular to the first direction, and the axis of the fan 53 is also perpendicular to L1, that is, the axis of the fan 53 is also perpendicular to the opening of the storage compartment 3.

The scroll case 52 has an air intake 522 opposite to the axial air intake side of the fan 53, an air intake duct is formed between the air intake 522 and the air intake 512 of the scroll case 52, and an air outlet duct is formed between the air outlet 521 and the air outlet 511 of the scroll case 52.

Further, the volute 52 includes a third end 523 and a fourth end 524 opposite to the third end 523 along the first direction, the distance from the axis of the fan 53 to the third end 523 is D5, and the distance from the axis of the fan 53 to the fourth end 524 is D6, D5> D6. That is, in the scroll case 52, the space of the fan 53 facing the first side 513 is larger than the space of the fan 53 facing the second side 514, and when the fan 53 rotates, the cooling capacity flows from the space of the fan 53 facing the first side 513 in the scroll case 52 to the space of the fan 53 facing the second side 514 in the scroll case 52, and then is discharged from the air outlet 521 of the scroll case 52 and enters the air outlet duct.

By the structure of the spiral case 52 and the arrangement of the air port, the fan 53 and the air outlet 521 of the spiral case 52, the wind resistance of the area close to the second side 514 in the air duct is larger, the speed of the cold discharged by the air outlet 521 flowing to the area close to the second side 514 in the air duct is reduced, so that the cold discharged by the air outlet 521 is concentrated to the area of the air outlet 511 opposite to the air outlet 521 of the spiral case 52, and the uniformity of the distribution of the cold discharged from the air outlet 511 to the outside of the casing 51 along the first direction is improved.

In the present embodiment, the first side 513 is parallel to the second side 514, and the center line L2 of the air outlet 521 of the scroll case 52 in the first direction is located substantially on the symmetry axis of the first side 513 and the second side 514, that is, the first side 513 and the second side 514 are substantially symmetrical with each other about L2, that is, the air outlet 521 of the scroll case 52 is located substantially at the middle of the housing 51 in the second direction.

Preferably, in the first direction, the axis of the fan 53 is located at a side of the second end 5112 facing the first edge 513, that is, in the opening direction of the storage compartment 3, the fan 53 is at least partially overlapped with the air outlet 511, so that the cold discharged from the air outlet 521 is concentrated in the middle area of the air outlet 511, and the uniformity of the distribution of the cold discharged from the air outlet 511 to the outside of the housing 51 along the first direction is improved.

More specifically, in the first direction, the axis of the blower 53 is located between the first end 5111 and the second end 5112 of the air outlet 511.

Preferably, the end of the fan 53 adjacent to the first side 513 is located on L2, i.e., the end of the fan 53 adjacent to the first side 513 is located approximately on the axis of symmetry of the first and second sides 513, 514. Or one end of the fan 53 close to the first edge 513 is located at the side of the L2 facing the first edge 513, so that the fan 53 and the volute 52 can be reasonably arranged, the function of the vortex fan is played to the maximum, and the air supply efficiency is improved.

Further, the ratio of the distance D1 from the first end 5111 to the first edge 513 to the distance D2 from the second end 5112 to the second edge 514 is 3:5 to 3:7. In this way, the uniformity of the distribution of the cooling capacity discharged from the air outlet 511 in the first direction in the storage compartment 3 can be further improved.

More preferably, the dimension of the housing 51 along the first direction is D, and the ratio of the distance D2 from the second end 5112 to the second edge 514 of the air outlet 511 to D is 5:18 to 7:18.

Preferably, the ratio of the dimensions of the air outlet 511 to the dimensions of the housing 51 along the first direction is 2:3. Since the first end 5111 and the second end 5112 of the air outlet 511 are both close to the inner container 11, the temperature of the region of the storage compartment 3 close to the inner container 11 is relatively low, and the temperature of the region of the storage compartment 3 further from the inner container 11 is higher, the air outlet 511 is mainly disposed on the housing 51 at a position far from the inner container 11, so as to avoid aggravating the temperature non-uniformity in the storage compartment 3.

Referring to fig. 7 to 12, the housing 51 includes a base 515 and a cover 516 fastened to the base 515, and an air duct is formed between the base 515 and the cover 516. The base 515 and the cover plate 516 can be installed and fixed in a buckling way through a clamping piece.

The turbo fan 53 is fixed on the base 515, and the volute 52 is covered outside the turbo fan 53 and is mounted and fixed on the base 515. Specifically, a volute 52 positioning column matched with the volute 52 is arranged on the base 515, an opening is formed at one end of the volute 52, facing the base 515, of the volute 52, the volute 52 is buckled on the volute 52 positioning column, so that the volute 52 and the base 515 are installed and fixed, the structure of the volute 52 is simplified by the base 515, the occupied space of the volute 52 in an air duct is reduced, the volume of the air duct assembly 5 is reduced, the opening of the volute 52 can be plugged by the base 515, a volute 52 cavity is formed between the base 515 and the volute 52, and the fan 53 is located in the volute 52 cavity.

The air suction inlet 522 of the volute 52 faces the cover plate 516, a gap is formed between the volute 52 and the cover plate 516, and the air inlet 512 and the air outlet 511 of the air channel are respectively arranged at two opposite sides of the volute 52.

Referring to fig. 9 and fig. 11 to 12, the air duct assembly 5 further includes an air guide 54, where the air guide 54 is located between the base 515 and the cover 516, the air guide 54 divides the inner cavity of the housing 51 into an air inlet cavity 517 and an air outlet cavity 518, the air inlet cavity 517 is connected with the air inlet 512, the air outlet cavity 518 is connected with the air outlet 511, the air inlet duct is located in the air inlet cavity 517, and the air outlet duct is located in the air outlet cavity 518, or the air outlet cavity 518 directly forms the air outlet duct.

The air guide 54 is provided with a ventilation opening 541, the ventilation opening 541 is communicated with the air inlet cavity 517 and the air outlet cavity 518, the volute 52 is arranged at the ventilation opening 541, and the air outlet 521 of the volute 52 is opposite to the ventilation opening 541, so that the cold discharged from the air outlet 521 of the volute 52 is directly blown to the air outlet cavity 518.

In this embodiment, the air duct assembly 5 is disposed parallel to the opening direction of the storage compartment 3, and the air inlet cavity 517 and the air outlet cavity 518 are disposed on opposite sides of the ventilation opening 541 along the opening direction of the storage compartment 3.

The end of the air guide 54 facing the base 515 is attached to the base 515, and the end of the air guide 54 facing the cover 516 is attached to the cover 516, that is, the air guide 54 is clamped and fixed between the base 515 and the cover 516.

Preferably, the air guide 54 is a foam, which not only can reduce the weight of the air guide 54 and reduce the manufacturing cost, but also can make the air guide 54 tightly attached to the base 515 and the cover 516, and the foam can bear a certain deformation, so that the foam can tightly press and attach to the cover 516 and the base 515, thereby avoiding the occurrence of the situation that the cooling capacity leaks from the gaps between the air guide 54 and the base 515 and the cover 516 to reduce the cooling efficiency, and the cooling capacity can more efficiently enter from the air inlet 512 and then be discharged from the air outlet 511 along the extending direction of the air duct.

The air guide 54 includes a first guide portion 542, a second guide portion 543, and a connection portion 544, the connection portion 544 connects the first guide portion 542 and the second guide portion 543, and in the first direction, the first guide portion 542 and the second guide portion 543 are located at both sides of the ventilation opening 541, respectively, and the first guide portion 542 and the second guide portion 543 are configured to guide and disperse the cooling air discharged from the ventilation opening 541 in the direction of the air outlet 511.

The first guiding portion 542 and the second guiding portion 543 each have an air guiding inclined plane 545, the air guiding inclined planes 545 of the first guiding portion 542 and the air guiding inclined planes 545 of the second guiding portion 543 are arranged in a horn shape, the air guiding inclined planes 545 of the first guiding portion 542 and the air guiding inclined planes 545 of the second guiding portion 543 form an inner wall of the air outlet cavity 518, and the size of the air outlet cavity 518 gradually increases from the ventilation opening 541 to the air outlet 511.

The air outlet 511 is located between the air guiding inclined surface 545 of the first guiding portion 542 and the air guiding inclined surface 545 of the second guiding portion 543.

Preferably, the air guiding inclined plane 545 of the first guiding part 542 and the air guiding inclined plane 545 of the second guiding part 543 are symmetrically disposed at opposite sides of the ventilation opening 541 along the first direction.

In an embodiment, a heat insulating member is further disposed in the housing 51, the heat insulating member is disposed in the air duct, and the heat insulating member is attached to the housing 51, so that heat exchange between cold energy in the air duct and air outside the housing 51 in the process of conveying the cold energy to the air outlet 511 can be reduced, the cold energy is intensively sent out from the air outlet 511 to the storage compartment 3, the temperature equalizing effect is improved, hot air outside the housing 51 and cold energy in the air duct are prevented from exchanging heat through the housing 51, and further air temperature return in the air duct is prevented.

In one embodiment, the heat insulating member is only disposed on one side of the air duct, which is abutted against the base 515, in another embodiment, the heat insulating member may be disposed on one side of the air duct, which is abutted against the cover 516, and in yet another embodiment, at least two heat insulating members may be disposed, one of which is abutted against the base 515, and the other of which is abutted against the cover 516, so that the heat insulating area is increased, and heat exchange between the hot air outside the housing 51 and the cold air in the air duct is further avoided.

Specifically, the heat insulator may be fixed to the housing 51, or may be pressed against the housing 51.

In particular embodiments, the insulation may be a polyethylene insulation material.

In an embodiment, the heat insulation member is only disposed in the air outlet cavity 518, because the air outlet 511 of the air duct is disposed at the opening of the housing 51 near the storage compartment 3, compared with the air inlet duct, the air outlet duct is relatively disposed at the position near the opening of the storage compartment 3, so that heat exchange is easier to generate with air outside the housing 51, and the air inlet duct is relatively disposed at the position far from the opening of the storage compartment 3, the cold amount at the position is relatively sufficient, and the temperature in the space of the storage compartment 3 outside the housing 51 is relatively low, so that the heat exchange between the cold amount in the air inlet duct and the air outside the housing 51 is less. Therefore, the heat insulation assembly is only arranged in the air outlet cavity 518, so that the material consumption of the heat insulation member can be reduced, and the cost is saved.

Referring to fig. 2 and 6, in the present embodiment, the refrigeration apparatus 100 further includes a return air member 6, and the air duct assembly 5 is connected to the inner container 11 through the return air member 6. The return air piece 6 is connected with the inner container 11, and a heat exchange channel is formed between the return air piece 6 and the inner container 11. The heat exchange channels, the air channels and the storage compartments 3 are sequentially communicated and form a circulating air channel, and as the air outlet 511 of the air channels is arranged at the opening part of the shell 51, which is close to the storage compartments 3, the cold energy generated by the evaporating pipes 4 can be transmitted to the region, which is close to the opening part of the storage compartments 3, in the storage compartments 3 through the heat exchange channels in the return air piece 6 and the air channels in the air channel assembly 5, and the cold energy can flow from the region, which is close to the opening, in the storage compartments 3 to the return air piece 6, so that the uniformity of the cold energy distribution in the storage compartments 3 is improved.

The air inlet 512 of the air duct is arranged at one end of the shell 51 far away from the opening of the storage compartment 3.

Referring to fig. 2, in one embodiment, the inner container 11 includes a pair of first walls 111 disposed opposite to each other, and the return air member 6 is disposed on the first walls 111.

The first walls 111 extend in the second direction, a pair of first walls 111 are disposed opposite to each other in the first direction, and the return air piece 6 is disposed on the first walls 111. The second direction is perpendicular to the first direction, and the second direction is also perpendicular to the opening direction of the storage compartment 3.

Preferably, the return air piece 6 extends in said second direction.

Correspondingly, the air return pieces 6 are also provided with a pair, the pair of air return pieces 6 are respectively arranged on the pair of first walls 111, and two ends of the air duct assembly 5 along the first direction are respectively connected with the pair of air return pieces 6.

In addition, the liner 11 further includes a pair of second walls 112 disposed opposite to each other along the second direction, each of the first walls 111 is connected to the pair of second walls 112, and each of the second walls 112 is connected to the pair of first walls 111. The inner container 11 further includes a third wall 113 disposed opposite to the opening of the storage compartment 3, and four sides of the third wall 113 are respectively connected to the pair of first walls 111 and the pair of second walls 112, so that the storage compartment 3 is enclosed by the third wall 113, the pair of first walls 111, and the pair of second walls 112.

In an embodiment, the pair of return air pieces 6 are disposed opposite to each other along the first direction, two ends of the air duct assembly 5 along the first direction are respectively connected to the pair of return air pieces 6, and the air outlet 511 of the housing 51 faces the second wall 112, that is, the air duct assembly 5 faces the second wall 112.

In an embodiment, the dimension of the first wall 111 in the second direction is greater than the dimension of the second wall 112 in the first direction. In the second direction, the air duct assembly 5 is located approximately in the middle of the storage compartment 3, which is more beneficial to improving the temperature equalizing effect of the air duct assembly 5 on the storage compartment 3, and further improving the uniformity of the temperature in the storage compartment 3.

In a specific embodiment, the air duct assembly 5 extends perpendicular to the first wall 111, i.e. the air duct assembly 5 extends along a plane formed by the first direction and the opening direction of the storage compartment 3. This can further improve the temperature uniformity in the whole storage compartment 3.

In one embodiment, the heat exchange channel includes a pair of sub-channels in communication with each other, one on each side of the air duct assembly 5.

The return air piece 6 is provided with a pair of return air inlets 61, and the pair of return air inlets 61 are respectively positioned at two sides of the air duct assembly 5 along the second direction.

Correspondingly, two air outlets 511 of the air duct assembly 5 are arranged, and the two air outlets 511 are oppositely arranged at two ends of the air duct assembly 5 along the second direction, so that the air outlets 511 and the air return openings 61 are in one-to-one correspondence, and the storage compartments 3 at two sides of the air duct assembly 5 are subjected to temperature equalization respectively.

In this embodiment, the return air piece 6 is detachably mounted and fixed to the housing 51. The return air piece 6 is arranged to be detachably mounted with the housing 51, so that replacement can be facilitated.

In summary, the air duct assembly 5 and the refrigeration equipment 100 with the same according to the present application can discharge the cold energy in the air duct from the air outlet 511 through the air outlet 521 of the volute 52, thereby realizing the directional transportation of the cold energy, and the arrangement of the relative positions of the air outlet 511, the fan 53 and the volute 52 can concentrate the cold energy discharged from the air outlet 521 of the volute 52 to the area where the air outlet 511 is opposite to the air outlet 521 of the volute 52, thereby improving the uniformity of the distribution of the cold energy discharged from the air outlet 511 to the outside of the housing 51 along the first direction.

The foregoing detailed description of the construction, features and advantages of the application will be presented with reference to the embodiments shown in the drawings, but the application is not limited to the preferred embodiments of the application, but is intended to cover all modifications and equivalent embodiments within the spirit and scope of the application as defined by the appended claims.

Claims (10)

1. The utility model provides an air duct assembly (5), its characterized in that includes casing (51), spiral case (52) and fan (53), have the wind channel in casing (51), air outlet (511) in wind channel are located on casing (51), spiral case (52) with fan (53) all are located in the wind channel, fan (53) are located in spiral case (52), spiral case (52) have air outlet (521), air outlet (521) orientation air outlet (511), air outlet (511) extend along the first direction and have the central line L1 in the first direction, air outlet (521) have the central line L2 in the first direction, L1 with the axis of fan (53) are located the both sides of L2 respectively.

2. The air duct assembly (5) of claim 1, wherein the air outlet (511) includes a first end (5111) and a second end (5112) disposed opposite the first end (5111) in the first direction, the housing (51) includes a first edge (513) and a second edge (514) disposed opposite the first edge (513) in the first direction, and an axis of the blower (53) is located on a side of the second end (5112) toward the first edge (513).

3. The air duct assembly (5) of claim 2, wherein an end of the fan (53) proximate the first side (513) is located on L2 or an end of the fan (53) proximate the first side (513) is located on a side of L2 facing the first side (513).

4. The air duct assembly (5) of claim 1, wherein the air outlet (511) includes a first end (5111) and a second end (5112) disposed opposite the first end (5111) along the first direction, the housing (51) includes a first edge (513) and a second edge (514) disposed opposite the first edge (513) along the first direction, and a distance D1 of the first end (5111) to the first edge (513) is less than a distance D2 of the second end (5112) to the second edge (514).

5. The duct assembly (5) of claim 4, wherein the ratio of D1 to D2 is 3:5 to 3:7.

6. The air duct assembly (5) of claim 4, wherein the housing (51) has a dimension D in the first direction and a ratio of D2 to D is 5:18 to 7:18.

7. The air duct assembly (5) of claim 1, wherein the housing (51) includes a first edge (513) and a second edge (514) disposed opposite the first edge (513) in the first direction, a distance D3 of an axis of the blower (53) to the first edge (513) being greater than a distance D4 of an axis of the blower (53) to the second edge (514).

8. The air duct assembly (5) of claim 1, wherein the volute (52) includes a third end (523) and a fourth end (524) disposed opposite the third end (523) in the first direction, a distance D5 of an axis of the blower (53) to the third end (523) being greater than a distance D6 of an axis of the blower (53) to the fourth end (524).

9. An air duct assembly (5) comprising a housing (51), a volute (52) and a fan (53), wherein the housing (51) is provided with an air duct, an air outlet (511) of the air duct is arranged on the housing (51), the volute (52) and the fan (53) are both arranged in the air duct, the fan (53) is arranged in the volute (52), the volute (52) is provided with an air outlet (521), the air outlet (511) extends along a first direction, the air outlet (511) comprises a first end (5111) and a second end (5112) which is arranged opposite to the first end (5111) along the first direction, the housing (51) comprises a first edge (513) and a second edge (514) which is arranged opposite to the first edge (513), a distance D1 from the first end (5111) to the first edge (513) is greater than a distance D1 from the second end (5112) to the axis (514) of the fan (53) and a distance D2 from the second end (5111) to the axis (53) of the fan (53), the volute (52) comprises a third end (523) and a fourth end (524) arranged opposite to the third end (523) along the first direction, wherein the distance D5 from the axis of the fan (53) to the third end (523) is greater than the distance D6 from the axis of the fan (53) to the fourth end (524).

10. A refrigeration appliance (100) comprising a tunnel assembly (5) according to any one of claims 1 to 9.