CN213457484U

CN213457484U - Lens driving device and electronic apparatus

Info

Publication number: CN213457484U
Application number: CN202021249331.6U
Authority: CN
Inventors: 史卫领; 郭顺; 王洪兴
Original assignee: Chengrui Optics Changzhou Co Ltd
Current assignee: Chengrui Optics Changzhou Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-06-15
Anticipated expiration: 2030-06-30
Also published as: WO2022000546A1

Abstract

The utility model relates to a lens driving device and electronic equipment. The lens driving device includes: a lens barrel; a first casing, the lens barrel is suspended in the first casing; a second casing, the first casing is installed in the second casing, and the first casing can be opposite to the second casing body movement or rotation; a first driving device and a second driving device, the first driving device is provided between the lens barrel and the first housing and the second driving device is provided between the first housing and the second housing, or , the first driving device is arranged between the first housing and the second housing and the second driving device is arranged between the lens barrel and the first housing; the first driving device realizes the movement of the lens barrel in the plane where the optical axis is located Or rotating, the second driving device realizes the movement or rotation of the lens barrel in the plane perpendicular to the optical axis; the second driving device includes a piezoelectric deformation part and supports and fixes the piezoelectric deformation part on the first shell and the second shell. A connecting piece between the lens barrel and the first housing.

Description

Lens driving device and electronic apparatus

[ technical field ] A method for producing a semiconductor device

The utility model relates to a camera lens technical field especially relates to a camera lens drive arrangement and electronic equipment.

[ background of the invention ]

The existing lens driving device is complex in structure, can only drive a lens to realize rotation in the direction perpendicular to an optical axis, is not comprehensive enough in rotation direction, and is difficult to realize a good anti-shake function.

Therefore, a lens driving device with good anti-shake function is needed.

[ Utility model ] content

An object of the utility model is to provide a can realize using camera lens optical axis as centre of a circle pivoted camera lens drive arrangement and electronic equipment.

The technical scheme of the utility model as follows:

the utility model provides a camera lens drive arrangement, camera lens drive arrangement includes:

a lens barrel for mounting a lens;

the lens barrel is suspended in the first shell, and can move or rotate relative to the first shell;

the first shell is arranged in the second shell, and the first shell can move or rotate relative to the second shell;

a first driving device and a second driving device, the first driving device being disposed between the lens barrel and the first housing and the second driving device being disposed between the first housing and the second housing, or the first driving device being disposed between the first housing and the second driving device being disposed between the lens barrel and the first housing;

the first driving device is used for realizing the movement or rotation of the lens cone in a plane where an optical axis is located, and the second driving device is used for realizing the movement or rotation of the lens cone in a plane vertical to the optical axis;

the second driving device comprises a piezoelectric deformation part and a connecting piece which supports and fixes the piezoelectric deformation part between the first shell and the second shell or between the lens cone and the first shell.

As an improvement, the second driving device is disposed between the first casing and the second casing, the connecting member includes a first bracket and a second bracket, one end of the first bracket is fixed to one of the first casing and the second casing, the other end of the first bracket is fixed to the middle position of the piezoelectric deformation portion, one end of the second bracket is fixed to both ends of the piezoelectric deformation portion, the middle position of the second bracket being a symmetry center, and the other end of the second bracket is fixed to one of the first casing and the second casing.

As an improvement, the piezoelectric deformation portion includes at least two stacked piezoelectric layers, so that the piezoelectric deformation portion generates a driving force perpendicular to the optical axis, and a direction of action of the driving force does not pass through a geometric center of the first housing.

As an improvement, the piezoelectric deformation portion further includes an elastic sheet sandwiched between the at least two stacked piezoelectric layers, one end of the second bracket is fixed to both ends of the elastic sheet, which are symmetric about the middle position, and the other end of the second bracket is fixed to the second housing.

As an improvement, the first housing is configured as a quadrangular prism having a first accommodating space, and includes a first bottom plate, four first side plates extending from the first bottom plate, and a first cover plate connected to the four first side plates, the first bottom plate, the first side plates, and the first cover plate enclose a first accommodating space, the first cover plate is provided with a first light-passing hole penetrating through the first cover plate, and the lens barrel is located in the first accommodating space;

the second shell is a quadrangular prism with a second accommodating space and comprises a second bottom plate, four second side plates extending from the second bottom plate and a second cover plate connected with the four second side plates, the second bottom plate, the second side plates and the second cover plate are enclosed to form a second accommodating space, a second light through hole penetrating through the second cover plate is formed in the second cover plate, the first shell is located in the second accommodating space, the first light through hole corresponds to the second light through hole, and a straight line where an optical axis is located respectively penetrates through the first light through hole and the second light through hole; the second driving device comprises four first side plates which are arranged at equal intervals and close to the edges, the middle position of a piezoelectric deformation part of each second driving device is connected with one first side plate through one first support, and the two ends, taking the middle position as a symmetry center, of the piezoelectric deformation part of each second driving device are connected with one second side plate through one second support.

As a modification, the first bracket is integrally formed with one of the first housing and the second housing, and/or the second bracket is integrally formed with the other of the first housing and the second housing.

As an improved mode, the first driving device is disposed between the lens barrel and the first housing, the first driving device includes a first magnetic steel component and a first coil component, which are disposed opposite to each other, one of the first magnetic steel component and the first coil component is fixed to the first housing, and the other is fixed to the lens barrel.

As an improved mode, the lens driving device further includes a first fulcrum assembly, the first fulcrum assembly is located in the second accommodating space, the first fulcrum assembly is connected to the first bottom plate and the second bottom plate, and the first fulcrum assembly is configured to support the first housing and enable the first housing to rotate relative to the second housing.

As an improvement, the first fulcrum assembly includes a first ball and a first rolling groove, the first ball is disposed on the first base plate, the first rolling groove is disposed on the second base plate, the first ball is partially disposed in the first rolling groove, and the first ball can rotate relative to the first rolling groove.

The utility model also provides an electronic equipment, electronic equipment includes foretell camera lens drive arrangement.

The utility model discloses embodiment is for prior art, first drive arrangement can realize the removal or the rotation of lens cone in optical axis place plane, second drive arrangement has realized the removal or the rotation of the lens cone in perpendicular to optical axis place plane in drive first casing and the first casing, thereby make the camera lens in the lens cone possess the roll, multidirectional anti-shake such as every single move and beat, and the roll is independent of every single move beat, when rolling, do not influence every single move and beat, anti-shake is effectual, and the connected mode preferred of piezoelectricity deformation portion, and easy to realize.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of a lens driving device according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a lens driving device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of another exploded structure of a lens driving device according to an embodiment of the present invention;

fig. 4 is an exploded schematic view of a first housing according to an embodiment of the present invention;

fig. 5 is an exploded schematic view of a second housing according to an embodiment of the present invention;

fig. 6A is a schematic top view of another exploded structure of a lens driving apparatus according to an embodiment of the present invention;

fig. 6B is a schematic diagram of another exploded structure of a lens driving device according to an embodiment of the present invention;

FIG. 7A is an enlarged schematic view of the structure at A in FIG. 6;

FIG. 7B is a first structural intent of the second actuating device of FIG. 6 to change shape under the application of a voltage;

FIG. 7C is a second structural view of the second driving device in FIG. 6 with a shape change under voltage;

fig. 8 is a schematic top view of the second housing, the first driving device and the first elastic assembly of the present invention;

fig. 9 is an exploded schematic view of a lens driving device according to another embodiment of the present invention;

FIG. 10A is an enlarged schematic view of the structure at B in FIG. 9;

FIG. 10B is a first structural intent of the second actuating device of FIG. 9 to change shape under the application of a voltage;

FIG. 10C is a second structural view of the second driving device in FIG. 9 with a shape change under voltage;

fig. 11 is a schematic diagram of another exploded structure of a lens driving device according to an embodiment of the present invention;

fig. 12 is a schematic perspective view of a first elastic component according to an embodiment of the present invention;

fig. 13 is a schematic diagram of another exploded structure of a lens driving device according to an embodiment of the present invention;

fig. 14 is a schematic front view of a partial structure of a lens driving device according to an embodiment of the present invention;

fig. 15 is a left side view schematically illustrating a partial structure of a lens driving apparatus according to an embodiment of the present invention;

fig. 16 is a schematic perspective view of a second elastic component according to an embodiment of the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, 2 and 3, the present invention provides a lens driving device 10, in which the lens driving device 10 is used for driving a lens to move or rotate. The lens driving device 10 includes a lens barrel 11, a first housing 12, a second housing 13, a first driving device 14, a second driving device 15, a first fulcrum assembly 16, a second fulcrum assembly 17, a first elastic assembly 18, and a second elastic assembly 19. The lens barrel 11 is used for installing a lens, the lens barrel 11 is suspended in the first shell 12, and the lens barrel 11 can move or rotate relative to the first shell 12; the first shell 12 is arranged in the second shell 13, and the first shell 12 can move or rotate relative to the second shell 13; the first fulcrum assembly 16 is positioned in the second shell 13, the first fulcrum assembly 16 is respectively connected with the first shell 12 and the second shell 13, and the first shell 12 is rotatably connected with the second shell 13 through the first fulcrum assembly 16; the first elastic component 18 is located in the second shell 13, and the first elastic component 18 is connected with the first shell 12 and the second shell 13 respectively; the second fulcrum assembly 17 is located in the first housing 12, the second fulcrum assembly 17 is respectively connected with the first housing 12 and the lens barrel 11, and the first housing 12 is rotatably connected with the lens barrel 11 through the second fulcrum assembly 17; the second elastic component 19 is located in the first housing 12, the second elastic component 19 is respectively connected with the first housing 12 and the lens barrel 11, the first driving device 14 is disposed between the lens barrel 11 and the first housing 12, and the second driving device 15 is disposed between the first housing 12 and the second housing 13, or the first driving device 14 is disposed between the first housing 12 and the second housing 13, and the second driving device 15 is disposed between the lens barrel 11 and the first housing 12; the first driving device 14 is used for moving or rotating the lens barrel 11 in a plane where an optical axis of the lens barrel 11 is located, and the second driving device 15 is used for moving or rotating the lens barrel 11 in a plane perpendicular to the optical axis. In the present embodiment, the first driving device 14 is disposed between the lens barrel 11 and the first housing 12, and the second driving device 15 is disposed between the first housing 12 and the second housing 13.

The shape of the lens barrel 11 matches the shape of the lens. The material of the lens barrel 11 is not limited, and may be plastic, for example.

Referring to fig. 4, the first housing 12 is configured as a quadrangular prism having a first accommodating space, the first housing 12 includes a first bottom plate 121, four first side plates 122 extending from the first bottom plate 121, and a first cover plate 123 connected to the four first side plates 122, the first bottom plate 121, the first side plates 122, and the first cover plate 123 enclose the first accommodating space, and the lens barrel 11 and the lens are located in the first accommodating space. It can be understood that a part of the lens may also be located outside the first accommodating space.

The first cover plate 123 is provided with a first light through hole 1231 which penetrates through the first cover plate 123 and is communicated with the first accommodating space, so that the lens mounted on the lens barrel 11 can shoot or pick up a picture through the first light through hole 1231. Wherein the first cover plate 123 is parallel to the first base plate 121.

Referring to fig. 5, the second housing 13 is configured as a quadrangular prism having a second accommodating space, the second housing 13 includes a second bottom plate 131, a second side plate 132 extending from the second bottom plate 131, and a second cover plate 133 connected to the second side plate 132, the second bottom plate 131, the second side plate 132, and the second cover plate 133 enclose the second accommodating space, and the first housing 12 is located in the second accommodating space of the second housing 13.

It is understood that the second side plate 132 and the first side plate 122 may be provided with an offset hole, so that a wire may pass through the first side plate 122 and the second side plate 132 to supply power to the first driving device 14, the second driving device 15, and the like.

The second cover plate 133 is provided with a second light through hole 1331 penetrating through the second cover plate 133 and communicating with the second accommodating space, a straight line where an optical axis of the lens is located respectively penetrates through the first light through hole 1231 and the second light through hole 1331, and the lens mounted on the lens barrel 11 can take a picture or make a video recording through the first light through hole 1231 and the second light through hole 1331.

Referring to fig. 6A to fig. 7C, the second driving device 15 includes four second driving devices 15, and the second driving devices 15 are respectively located at positions close to the edges of the four first side plates 122 at equal intervals. Each of the second driving devices 15 includes a piezoelectric deformation portion 151 and a connection member 152 that supports and fixes the piezoelectric deformation portion 151 between the first casing 12 and the second casing 13. It is understood that the connection 152 is used to support and fix the piezoelectric deformation portion 151 between the lens barrel 11 and the first housing 12 when the second driving device 15 is disposed between the lens barrel 11 and the first housing 12. In the present embodiment, the description will be made with the connector 152 for supporting and fixing the piezoelectric deformation portion 151 between the first casing 12 and the second casing 13. Each of the four second driving devices 15 is connected to one of the first and

second housings

12 and 13, respectively.

The connecting member 152 includes a first bracket 1521 and a second bracket 1522, one end of the first bracket 1521 is fixed to one of the first side plate 122 of the first casing 12 or the second side plate 132 of the second casing 13, the other end of the first bracket 1521 is fixed to the middle position of the piezoelectric deformation portion 151, the number of the second bracket 1522 is two, one end of the second bracket 1522 is fixed to both ends of the piezoelectric deformation portion 151, which are symmetric about the middle position, and the other end of the second bracket 1522 is fixed to the other one of the first side plate 122 of the first casing 12 or the second side plate 132 of the second casing 13. Specifically, the two ends of the piezoelectric deformation portion 151 may be interpreted as: a typical piezoelectric deformation portion is capable of lengthening or shortening under the action of an electric field, and the two ends are two ends along the lengthening or shortening direction of the piezoelectric deformation portion. In this embodiment, the first bracket 1521 is fixed to the first side plate 12 of the first housing 12, and the second bracket 1522 is fixed to the second side plate 132 of the second housing 13, that is, the middle position of the piezoelectric deformation portion 151 of each second driving device 15 is connected to one first side plate 122 through one first bracket 1521, and the two ends of the piezoelectric deformation portion 151 of each second driving device 15, which are symmetric about the middle position, are connected to one second side plate 132 through one second bracket 1522. The first bracket 1521 is integrally formed with the first housing 12, and/or the second bracket 1522 is integrally formed with the second housing 13. It is understood that when the first bracket 1521 is fixed to the second side plate 132 of the second housing 13 and the second bracket 1522 is fixed to the first side plate 12 of the first housing 12, the first bracket 1521 is integrally formed with the second housing 13, and/or the second bracket 1522 is integrally formed with the first housing 12.

The number of the first supports 1521, the number of the second supports 1522, and the number of the piezoelectric deformation portions 151 are the same. The middle of the piezoelectric deformation part 151 is connected to the first side plate 122 of the first housing 12 through a first bracket 1521, and both ends of the piezoelectric deformation part 151 are connected to the second side plate 132 of the second housing 13 through a second bracket 1522. The second bracket 1522 includes two second sub-brackets, and two ends of the piezoelectric deformation portion 151 are connected to the second side plate 132 of the second housing 13 through one second sub-bracket respectively.

In this application, the number of the first brackets 1521 is 4, each first bracket 1521 is connected to one first side plate 122, and each second bracket 1522 is connected to one second side plate 132.

The piezoelectric deformation portion 151 has a piezoelectric effect: when an electric field is applied in the polarization direction of the piezoelectric deformation portion 151, the piezoelectric deformation portion 151 is deformed, and the deformation of the piezoelectric deformation portion 151 is eliminated when the electric field is removed. Therefore, after the piezoelectric deformation portion 151 is applied with a voltage, the second driving device 15 is deformed, thereby driving the first housing 12 and devices in the first housing 12, such as the lens barrel 11, to move or rotate in a plane perpendicular to the optical axis.

Referring to fig. 6A, 6B, 7A, 7B, 7C and 8, the piezoelectric deformation portions 151 include four piezoelectric deformation portions 151, and the number of the piezoelectric deformation portions 151 is equal to the number of the first supports 1521.

Each piezoelectric deformation portion 151 includes at least two piezoelectric layers stacked, so that the piezoelectric deformation portion 151 generates a driving force perpendicular to the optical axis, and the action direction of the driving force does not pass through the geometric center of the first housing. Such as the piezoelectric deformation portion 151, includes a first piezoelectric layer 1511 and a second piezoelectric layer 1513 which are sequentially stacked. The middle of the first piezoelectric layer 1511 is connected to the first support 1521, and both ends of at least one of the first piezoelectric layer 1511 and the second piezoelectric layer 1513, which are symmetric about the middle position, are connected to the second support 1522. Likewise, the two ends of the piezoelectric layer can be interpreted as: both ends of the piezoelectric layer in the direction in which it lengthens or shortens. Wherein each piezoelectric deformation portion 151 is offset from the center of the first side plate 122 so that the direction of action of the driving force of the piezoelectric deformation portion 151 does not pass through the geometric center of the first casing 12.

In one embodiment, the piezoelectric deformation unit 151 further includes an elastic sheet 1512 interposed between the at least two stacked piezoelectric layers, and the second bracket 1522 has one end fixed to both ends of the elastic sheet 1512, the ends being symmetric about the middle position, and the other end fixed to the second casing 12. Specifically, the directions of the two ends of the elastic sheet and the two ends of the piezoelectric layer are consistent, which can be interpreted as follows: the elastic piece is provided with two ends along the lengthening or shortening direction of the piezoelectric layer. That is, the piezoelectric deformation portion 151 includes a first piezoelectric layer 1511, an elastic sheet 1512, and a second piezoelectric layer 1513 stacked in this order. The projections of the first piezoelectric layer 1511 and the second piezoelectric layer 1513 along the direction perpendicular to the optical axis fall onto the elastic sheet 1512, the middle of the first piezoelectric layer 1511 is connected to the first bracket 1521, and the two ends of the elastic sheet 1512, which are symmetric about the middle position, are connected to the second bracket 1522.

The first piezoelectric layer 1511 is deformed by an external voltage. The second piezoelectric layer 1513 is also deformed by an external voltage.

The material of the elastic sheet 1512 is not limited, in this application, the elastic sheet 1512 is a steel sheet, and the elastic sheet is passively deformed along with the first piezoelectric layer 1511 and the second piezoelectric layer 1512 under the deformation, and the arrangement of the elastic sheet is favorable for amplifying the deformation of the piezoelectric deformation portion 151, and more conversion is a torque force for pushing the first housing to rotate.

With reference to fig. 7B, fig. 7C and fig. 8, when the first piezoelectric layer 1511 and the second piezoelectric layer 1513 are applied with an external voltage, the first piezoelectric layer 1511 is shortened, the second piezoelectric layer 1513 is lengthened, or the first piezoelectric layer 1511 is lengthened, the second piezoelectric layer 1513 is shortened, so that the piezoelectric deformation portion 151 is concave or convex at the same time, and the elastic sheet 1512 is concave or convex along with the deformation of the first piezoelectric layer 1511 and the second piezoelectric layer 1513, so as to drive the first housing 12 and the lens barrel 11 therein to move or rotate in a plane perpendicular to the optical axis. It is understood that the elastic sheet 1512 may not be provided.

Referring to fig. 9, 10A, 10B and 10C, it can be understood that in other embodiments, the piezoelectric deformation portion 151 may be connected to the first casing 12 and the second casing 13 in other manners. Specifically, the piezoelectric deformation portion 151 includes a first end 1514 and a second end 1515 that are disposed opposite to each other, one end of a first bracket 1521 is fixed to the first side plate 122 of the first casing 12, and the other end of the first bracket 1521 is fixed to the first end 1514; here, the first end 1514 and the second end 1515 are both ends in a direction along which the piezoelectric deformation portion 151 lengthens or shortens. One end of the second bracket 1522 is fixed to the second end 1515, and the other end of the second bracket 1522 is fixed to the second side plate 132 of the second housing 13. In this embodiment, the number of the piezoelectric deformation portions 151, the number of the first supports 1521, and the number of the second supports 1522 are the same.

Each piezoelectric deformation portion 151 includes at least two piezoelectric layers stacked, so that the piezoelectric deformation portion 151 generates a driving force perpendicular to the optical axis, and the action direction of the driving force does not pass through the geometric center of the first housing. Such as the piezoelectric deformation portion 151, includes a first piezoelectric layer 1511 and a second piezoelectric layer 1513 which are sequentially stacked.

As an embodiment, the piezoelectric deformation portion 151 further includes an elastic sheet 1512 interposed between the at least two stacked piezoelectric layers, and the first end and the second end are two ends of the elastic sheet 1512 in a direction along the piezoelectric layers to lengthen or shorten. That is, the piezoelectric deformation portion 151 includes a first piezoelectric layer 1511, an elastic sheet 1512, and a second piezoelectric layer 1513 stacked in this order. The projections of the first piezoelectric layer 1511 and the second piezoelectric layer 1513 in the direction perpendicular to the optical axis fall onto the elastic sheet 1512. One end of the first bracket 1521 is fixed to the first side plate 122 of the first housing 12, and the other end of the first bracket 1521 is fixed to the first end; one end of the second bracket 1522 is fixed at the second end, and the other end of the second bracket 1522 is fixed at the second side plate 132 of the second casing 13. The first support 1521, the piezoelectric deformation part 151 and the second support 1522 are in a zigzag shape to form a cantilever beam structure, and a driving device of the cantilever beam structure can generate larger torque force under the condition of the same deformation amount, so that an anti-shake system of the lens is more sensitive. The first support 1521 and the second support 1522 are respectively located on two sides of the piezoelectric deformation portion 151.

With reference to fig. 10B and fig. 10C, when the first piezoelectric layer 1511 and the second piezoelectric layer 1513 are subjected to an external voltage, the first piezoelectric layer 1511 is shortened, the second piezoelectric layer 1513 is lengthened, or the first piezoelectric layer 1511 is lengthened, and the second piezoelectric layer 1513 is shortened, so that the piezoelectric deformation portion 151 is concave or convex at the same time, and the elastic sheet 1512 is concave or convex along with the deformation of the first piezoelectric layer 1511 and the second piezoelectric layer 1513, so as to drive the first housing 12 and the lens barrel 11 therein to move or rotate in a plane perpendicular to the optical axis.

Referring to fig. 11, the first fulcrum assembly 16 is located in the second accommodating space, the first fulcrum assembly 16 is connected to the first bottom plate 121 and the second bottom plate 131 respectively, and the first fulcrum assembly 16 is used for supporting the first housing 12 and enabling the first housing 12 to rotate relative to the second housing 13. Specifically, the first fulcrum assembly 16 includes a first ball assembly 161 and a first rolling groove 162, one of the first ball assembly 161 and the first rolling groove 162 is disposed on the first base plate 121, the other of the first ball assembly 161 and the first rolling groove 162 is disposed on the second base plate 131, and the first ball assembly 161 can rotate relative to the first rolling groove 162.

The first ball assembly 161 includes a first base 1611 and a first ball 1612 coupled to the first base 1611. The first base 1611 is connected with the first base plate 121 or the second base plate 131. In this application, the first ball 1612 is disposed at the first bottom plate 121.

The first rolling groove 162 is a groove, the first ball 1612 is partially located in the first rolling groove 162, and the first ball 1612 can rotate relative to the first rolling groove 162. In the present application, the first rolling groove 162 is provided at the second base plate 131. It is understood that the second base plate 131 may be provided with a boss, and the first rolling groove 162 is opened on the boss of the second base plate 131.

Referring to fig. 12, the first elastic element 18 is located in the second accommodating space, and the first elastic element 18 is connected to the first side plate 122 and the second side plate 132 respectively. The first elastic member 18 serves to support the first housing 12. Specifically, the first elastic assembly 18 includes a first frame 181, a second frame 182, and a plurality of first elastic members 183, the first frame 181 is connected to the first side plate 122, the second frame 182 is connected to the second side plate 132, two ends of the first elastic members 183 are respectively connected to the first frame 181 and the second frame 182, and the first elastic members 183 are inclined with respect to the first frame 181 and the second frame 182.

First framework 181 is the framework, and the shape phase-match that establishes is enclosed to the outer wall of first framework 181 and first curb plate 122, the laminating of the outer wall of first framework 181 and first curb plate 122, the better fixed of first framework 181 and first curb plate 122 ability.

The second side plate 132 is in a frame shape, the shape of the second frame 182 is matched with that of the inner wall of the second side plate 132, the second frame 182 is attached to the inner wall of the second side plate 132, and the second frame 182 can be better fixed with the second side plate 132.

The first elastic member 183 has a substantially elongated shape. The first elastic member 183 has elasticity. The angle a between the first elastic member 183 and the second frame 182 is less than 90 degrees. In the present application, the first elastic members 183 include four, and each first elastic member 183 corresponds to one first side plate 122.

Referring to fig. 13, 14 and 15, the specific type of the first driving device 14 is not limited, for example, the first driving device 14 is a piezoelectric driving device or an electromagnetic driving device. In this embodiment, the first driving device 14 is used to realize the movement or rotation of the lens barrel 11 in the plane of the optical axis, and the first driving device 14 is used as an electromagnetic driving device for explanation.

The electromagnetic driving device comprises a plurality of electromagnetic driving devices. Preferably, the electromagnetic driving means are distributed in a direction perpendicular to said optical axis. It can be understood that the electromagnetic driving devices may be distributed unevenly, and the lens barrel 11 may be driven to move or rotate in the plane of the optical axis. The first driving device 14 includes a first coil assembly 141 and a first magnetic steel assembly 142, which are disposed opposite to each other, one of the first magnetic steel assembly 142 and the first coil assembly 141 is fixed to the first housing 12, and the other is fixed to the lens barrel 11. When the first coil component 141 is energized, a magnetic field can be generated to push the first magnetic steel component 142 to move, and further move or rotate in the plane of the optical axis.

The second fulcrum assembly 17 is located in the first accommodating space, the second fulcrum assembly 17 is connected to the first bottom plate 121 and the lens barrel 11, and the second fulcrum assembly 17 is configured to support the lens barrel 11 and enable the lens barrel 11 to rotate relative to the first housing 12. Second fulcrum assembly 17 may be identical in construction to first fulcrum assembly 16. Specifically, the second fulcrum assembly 17 includes a second ball member 171 and a second rolling groove 172, one of the second ball member 171 and the second rolling groove 172 is disposed on the first base plate 121, the other of the second ball member 171 and the second rolling groove 172 is disposed on the lens barrel 11, and the second ball member 171 can rotate relative to the second rolling groove 172.

The second ball assembly 171 includes a second base 1711 and a second ball 1712 connected to the second base 1711. The second base 1711 is connected to the first base plate 121 or the lens barrel 11. In the present application, the second spherical body 1712 is provided to the lens barrel 11.

The second rolling groove 172 is a groove, the second ball 1712 is partially located in the second rolling groove 172, and the second ball 1712 can rotate relative to the second rolling groove 172. In the present application, the second rolling groove 172 is provided in the first base plate 121. It is understood that a boss may be provided on the first base plate 121, and the second rolling groove 172 is opened on the boss of the first base plate 121.

Referring to fig. 16, the second elastic element 19 is located in the first accommodating space, and the second elastic element 19 is connected to the first side plate 122 and the lens barrel 11 respectively. The second elastic member 19 is for supporting the lens barrel 11. The second elastic member 19 and the first elastic member 18 are identical in structure. Specifically, the second elastic assembly 19 includes a third frame 191, a fourth frame 192, and a plurality of second elastic members 193, the third frame 191 is connected to the lens barrel 11, the fourth frame 192 is connected to the first side plate 122, both ends of the second elastic members 193 are connected to the third frame 191 and the fourth frame 192, respectively, and the second elastic members 193 are inclined with respect to the second frame 182 and the second frame 182.

The third frame 191 is shaped like a frame, the cross-section of the third frame 191 matches the cross-section of the outer surface of the lens barrel 11, the third frame 191 is attached to the outer wall of the lens barrel 11, and the third frame 191 and the lens barrel 11 can be fixed together.

The fourth side plate is frame-shaped, the shape that the inner walls of the fourth frame 192 and the first side plate 122 enclose is matched, the inner walls of the second frame 182 and the first side plate 122 are attached, and the fourth frame 192 can be better fixed with the first side plate 122.

The second elastic member 193 has a substantially elongated shape. The second elastic member 193 has elasticity.

The utility model also provides an electronic equipment, electronic equipment includes foretell camera lens drive arrangement 10. The type of the electronic device is not limited, and the electronic device may be an intelligent terminal, such as a mobile phone and a tablet, or a camera or other device including a lens.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A lens driving device, wherein the lens driving device comprises:

a lens barrel, the lens barrel is used to mount the lens;

a first casing, the lens barrel is suspended in the first casing, and the lens barrel can move or rotate relative to the first casing;

a second casing, the first casing is installed in the second casing, and the first casing can move or rotate relative to the second casing;

A first driving device and a second driving device, the first driving device is provided between the lens barrel and the first housing and the second driving device is provided between the first housing and the first housing Between the two housings, or, the first driving device is arranged between the first housing and the second housing and the second driving device is arranged between the lens barrel and the first housing between the bodies

The first driving device is used to realize the movement or rotation of the lens barrel in the plane where the optical axis is located, and the second driving device is used to realize the movement or rotation of the lens barrel in the plane perpendicular to the optical axis;

The second driving device includes a piezoelectric deformation part and supports and fixes the piezoelectric deformation part between the first casing and the second casing or between the lens barrel and the first casing the connector.

2 . The lens driving device according to claim 1 , wherein the second driving device is disposed between the first housing and the second housing, and the connecting member comprises a first bracket and a a second bracket, one end of the first bracket is fixed to one of the first shell and the second shell, the other end is fixed to the middle position of the piezoelectric deformation part, and one end of the second bracket is fixed In one of the first casing and the second casing, the other end is fixed to the two ends of the piezoelectric deformation portion with the middle position as the center of symmetry.

3. The lens driving device according to claim 2, wherein the piezoelectric deformation portion comprises at least two stacked piezoelectric layers, so that the piezoelectric deformation portion generates a driving force perpendicular to the optical axis, And the acting direction of the driving force does not pass through the geometric center of the first housing.

4 . The lens driving device according to claim 3 , wherein the piezoelectric deformation portion further comprises an elastic sheet sandwiched between the at least two stacked piezoelectric layers, and the second bracket One end is fixed to the second casing, and the other end is fixed to the two ends of the elastic sheet with the middle position as the center of symmetry.

5 . The lens driving device according to claim 3 , wherein the first casing is configured as a quadrangular prism with a first accommodating space, comprising a first bottom plate, four quadrants extending from the first bottom plate. 6 . a first side plate and a first cover plate connected to the four first side plates, the first bottom plate, the first side plate and the first cover plate enclose a first accommodating space, The first cover plate is provided with a first light-passing hole penetrating the first cover plate, and the lens barrel is located in the first accommodating space;

The second shell is set as a quadrangular prism with a second accommodating space, and includes a second bottom plate, four second side plates extending from the second bottom plate, and four second side plates connected with the four second side plates. The second cover plate, the second bottom plate, the second side plate and the second cover plate are enclosed to form a second accommodating space, and the second cover plate is provided with a hole passing through the second cover plate A second light-passing hole, the first housing is located in the second accommodating space, the first light-passing hole corresponds to the second light-passing hole, and the straight line where the optical axis is located passes through the the first light-passing hole and the second light-passing hole; the second driving device includes four, which are located at the positions of the four first side plates close to the edge at equal intervals, and each of the second The middle positions of the piezoelectric deformation parts of the driving device are respectively connected by one of the first brackets and one of the first side plates, and the middle position of the piezoelectric deformation parts of each of the second driving devices is the center of symmetry. The two ends are respectively connected by a second bracket and a second side plate.

6. The lens driving device according to claim 2, wherein the first bracket is integrally formed with one of the first casing and the second casing, and/or the second The bracket is integrally formed with the other of the first casing and the second casing.

7. The lens driving device according to claim 1, wherein the first driving device is disposed between the lens barrel and the first housing, and the first driving device comprises a A first magnetic steel assembly and a first coil assembly, one of the first magnetic steel assembly and the first coil assembly is fixed to the first housing, and the other is fixed to the lens barrel.

8 . The lens driving device according to claim 5 , wherein the lens driving device further comprises a first fulcrum component, the first fulcrum component is located in the second accommodating space, and the first fulcrum component is located in the second accommodating space. The assemblies are respectively connected with the first base plate and the second base plate, and the first fulcrum assembly is used to support the first casing and enable the first casing to rotate relative to the second casing.

9 . The lens driving device according to claim 8 , wherein the first fulcrum assembly comprises a first sphere and a first rolling groove, the first sphere is disposed on the first bottom plate, and the first The rolling groove is arranged on the second bottom plate, the first ball is partially located in the first rolling groove, and the first ball can rotate relative to the first rolling groove.

10 . An electronic device, characterized in that: the electronic device comprises the lens driving device according to any one of claims 1 to 9 .