CN217769827U

CN217769827U - Lens drive arrangement's concatenation formula shell fragment structure and drive arrangement thereof

Info

Publication number: CN217769827U
Application number: CN202221502806.7U
Authority: CN
Inventors: 庄龙强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-11-08
Anticipated expiration: 2032-06-16

Abstract

The utility model provides a camera lens drive arrangement's concatenation formula shell fragment structure and drive arrangement thereof, wherein concatenation formula shell fragment structure includes first shell fragment group and second shell fragment group, first shell fragment group includes the first shell fragment unit of a plurality of, second shell fragment group includes a plurality of second shell fragment unit, a plurality of first shell fragment unit and a plurality of second shell fragment unit is crisscross each other and the concatenation of head and the tail sets up, wholly forms square shell fragment structure. The utility model relates to a camera lens drive arrangement's concatenation formula shell fragment structure and drive arrangement thereof possesses simple swift, the stable in structure of processing procedure and the camera lens drive arrangement's that overall cost is low beneficial effect.

Description

Lens drive arrangement's concatenation formula shell fragment structure and drive arrangement thereof

Technical Field

The utility model relates to a voice coil motor technical field particularly, relates to a camera lens drive arrangement's concatenation formula shell fragment structure and drive arrangement thereof.

Background

The drive shell fragment that present shell fragment formula voice coil motor used is bending integrated into one piece structure, and the voice coil motor that adopts this type of structure has following shortcoming:

(1) The process comprises the following steps: the bending process is difficult to form, the surface of the elastic sheet is easy to be seriously damaged in the forming process, the process yield is low, and the mass production degree is poor;

(2) The performance is as follows: the spring formed by bending and integrating actually has large difference with the design structure, so that the product performance is unstable, and the spring is easy to break, oxidize and rust after a reliability experiment;

(3) On the material: the Young's modulus and rigidity of the spring material are high, and the voice coil motor belongs to a small-size precise component, so that the voice coil motor is not suitable for small R-angle bending, the material loss after bending forming is serious, and the whole service life is short.

In view of this, the present inventors have invented a lens driving device with a splicing type elastic sheet structure and a driving device thereof, which has a simple and fast manufacturing process, a stable structure, and a low overall cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple swift, the stable in structure of process and the camera lens drive arrangement's of overall cost concatenation formula shell fragment structure and drive arrangement thereof.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a camera lens drive arrangement's concatenation formula shell fragment structure, includes first shell fragment group and second shell fragment group, first shell fragment group includes the first shell fragment unit of a plurality of, second shell fragment group includes a plurality of second shell fragment unit, a plurality of first shell fragment unit and a plurality of second shell fragment unit is crisscross each other and the concatenation setting of head and the tail, wholly forms square shell fragment structure.

As a further improvement, the plane where the first elastic sheet unit is located is a vertical plane, and the plane where the second elastic sheet unit is located is a horizontal plane.

As a further improvement, two ends of the first elastic sheet unit simultaneously extend upwards or downwards to form a splicing part, and two ends of the second elastic sheet unit are simultaneously provided with splicing ports matched with the splicing part.

As a further improvement, the splicing part is a square strip, and the splicing port is a square opening.

In a further improvement, the splicing part is a square strip, and the splicing opening comprises a square strip part and an accommodating part which is uniformly arranged on the periphery of the square strip part.

As a further improvement, the accommodating portion is square or circular.

As a further improvement, the splicing part comprises at least two protruding blocks, and the splicing port comprises at least two bayonets which are respectively arranged in one-to-one correspondence with the protruding blocks.

As a further improvement, the splicing ports and the splicing parts are fixedly connected through welding, dispensing or laser welding.

The utility model provides a driving device, include shell, magnetite support and camera lens driving device's concatenation formula shell fragment structure, square shell fragment structure set up in the shell with between the magnetite support, the lateral direction is close to in the shell the direction of square shell fragment structure is outstanding to be provided with the first bearing part of a plurality of, the magnetite support is to being close to the direction of square shell fragment structure is outstanding to be provided with a plurality of second bearing part.

As a further improvement, the number of the first bearing parts is two and the first bearing parts are respectively symmetrically arranged, the number of the second bearing parts is two and the second bearing parts are respectively symmetrically arranged, and the first bearing parts and the second bearing parts are alternately arranged to form a square arrangement structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model relates to a lens drive arrangement's concatenation formula shell fragment structure adopts the square shell fragment structure that first shell fragment group and second shell fragment group simply splice and form, compares traditional integrative bending shell fragment structure on the one hand its processing procedure simple and fast, possesses fine volume production nature, on the other hand through two shell fragment group concatenation shaping structure with design structure difference little, product property stable, anti-reliability experimental performance is good, the spring surface is intact difficult for the oxidation rust; meanwhile, due to the plane splicing structure, the utilization rate of the whole material is high, the difference with the conventional AF plane spring is not large, and the material is saved.

2. The utility model relates to a driving device, which adopts the mode that one end of a square elastic sheet structure is fixed on a first bearing part of a shell, and the other end is fixed on a second bearing part of a magnet bracket, thereby effectively playing the role of hanging the driving device, which can be regarded as the main hanging of the whole lens driving device, and simultaneously, the elastic sheet structure is carried and fixed by utilizing the bearing part between the two parts, thereby effectively ensuring the movement of the whole body in the X/Y axis direction; and AF lower spring one end is fixed on the magnetite support, and the other end is fixed on the lower base, plays the effect of auxiliary stay drive arrangement, can regard as whole camera lens drive arrangement's secondary suspension, and this two suspension parts can bear the camera lens of bigger weight, and whole removal can be more steady, reduces the shake.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a spliced elastic sheet structure of a lens driving device according to the present invention;

fig. 2 is a schematic structural diagram of a first splicing portion and a splicing opening in a splicing-type elastic sheet structure of a lens driving apparatus according to the present invention;

fig. 3 is a schematic structural diagram of a second embodiment of a splicing part and a splicing opening in a splicing type elastic sheet structure of a lens driving device according to the present invention;

fig. 4 is a schematic structural diagram of a third embodiment of a splicing part and a splicing opening in a splicing type elastic sheet structure of a lens driving device according to the present invention;

fig. 5 is an exploded view of a driving device according to the present invention showing a first bearing portion;

fig. 6 is an exploded view of the second bearing part of the driving device of the present invention;

fig. 7 is a schematic structural view of a driving device according to the present invention;

fig. 8 is a schematic structural view of the dovetail boss shown in the driving device of the present invention.

Description of the main elements

10. A spliced elastic sheet structure;

11. a first group of pellet groups;

111. a first spring sheet unit;

1111. a splicing part;

12. a second group of spring pieces;

121. a second spring plate unit;

1211. splicing the interfaces;

20. a housing;

21. a first bearing part;

30. a magnet holder;

31. a second bearing part;

32. dovetail bosses;

40. an AF lower spring;

50. a lower base.

Detailed Description

To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, a spliced type elastic sheet structure 10 of a lens driving device includes a first elastic sheet set 11 and a second elastic sheet set 12, where the first elastic sheet set 11 includes a plurality of first elastic sheet units 111, the second elastic sheet set 12 includes a plurality of second elastic sheet units 121, and the plurality of first elastic sheet units 111 and the plurality of second elastic sheet units 121 are staggered and spliced end to end, and form a square elastic sheet structure as a whole.

The square elastic sheet structure formed by simply splicing the first elastic sheet group 11 and the second elastic sheet group 12 is adopted, so that compared with the traditional integral bending elastic sheet structure, on one hand, the manufacturing process is simple and quick, and the mass production performance is good, on the other hand, the difference between the forming structure formed by splicing the two elastic sheet groups and the design structure is small, the product performance is stable, the anti-reliability experimental performance is good, and the surface of the spring is intact and is not easy to oxidize and rust; meanwhile, the plane splicing structure also enables the utilization rate of the whole material to be high, the difference with the conventional AF plane spring is not large, and the material is saved.

Referring to fig. 1, a plane where the first elastic sheet unit 111 is located is a vertical plane, and a plane where the second elastic sheet unit 121 is located is a horizontal plane. The elastic sheet structure which is spliced alternately by the horizontal plane and the vertical plane can effectively bear the vibration force from the lens motor in the vertical direction, and the movement effect in the vertical direction is borne on the basis of realizing the anti-shake effect.

Furthermore, both ends of the first elastic sheet unit 111 simultaneously extend upwards or downwards to form a splicing part 1111, and both ends of the second elastic sheet unit 121 are simultaneously provided with a splicing port 1211 adapted to the splicing part 1111, that is, the first elastic sheet set 11 can be located on the upper layer or the lower layer, and at this time, the second elastic sheet set 12 is correspondingly located on the upper layer or the lower layer, and the production operation is very convenient by adopting a splicing structure of the upper layer and the lower layer and a structure in which the splicing part 1111 and the splicing port 1211 are oppositely inserted.

In addition, the angles between the first elastic sheet unit 111 or the second elastic sheet unit 121 at four corners of the square elastic sheet structure and four sides are 130-140 degrees, preferably 135 degrees, and the bending resistance of the whole structure can be effectively improved by adopting the corner design with the angles; the spring plate is made of alloy material such as C1990-GSH and BF158.

Referring to fig. 2, the joint 1111 is a square strip, the joint 1211 is a square opening with an opening slightly larger than the joint 1111, the structure is very simple by adopting the joint method, the quick fixed connection can be realized by welding, dispensing or laser welding, and the structure with the opening slightly larger than the joint 1111 can also contain solder paste during certain welding or glue during dispensing, so that the joint 1111 can be easily laid in the containing part without stacking and affecting the overall structure.

Referring to fig. 3, the splicing portion 1111 is a square strip, the splicing opening 1211 includes a square strip and receiving portions uniformly formed on the periphery of the square strip, and the splicing opening 1211 can be fixedly connected to the square strip by welding, dispensing or laser welding, and meanwhile, solder paste during welding or glue during dispensing can be easily spread in the receiving portions, the receiving amount of the solder paste is increased, and the overall structure is not affected by stacking.

Further, the containing part is square or round to ensure that the volume of the contained liquid is as maximum as possible and the mobility is good, and the flat state can be formed conveniently and quickly.

Referring to fig. 4, the joint 1111 includes at least two protruding blocks, the joint 1211 includes at least two bayonets respectively corresponding to the protruding blocks, and the opening of the joint 1211 is slightly larger than the joint 1111, preferably, the joint 1111 includes three protruding blocks, and the width of the middle protruding block is larger, so as to play a main supporting role during the jointing. The structure with the three protruding blocks is stronger in stability, and the structure with the opening of the splicing opening 1211 slightly larger than the splicing part 1111 can also contain solder paste during certain welding or glue during dispensing, so that the three protruding blocks can be easily tiled in the containing part and cannot be stacked to influence the whole structure.

In addition, referring to fig. 1 and fig. 8, in the embodiment, the first elastic sheet set 11 is located below the second elastic sheet set 12, the first elastic sheet unit 111 is spliced with the second elastic sheet unit 121, and a fixing notch is formed at a bottom of one end of the first elastic sheet unit 111 close to the second bearing portion 32, a dovetail boss 31 is disposed at a position corresponding to the fixing notch of the magnet support 30, and the dovetail boss 31 is used for being matched with the fixing notch to further limit and fix the first elastic sheet set 11, so that the overall elastic sheet structure is more stable in use, and meanwhile, the width of the dovetail boss 31 is gradually increased from the inside of the driving device to further avoid the risk that the elastic sheets are dropped off outwards in use.

Referring to fig. 1 and 5 to 7, a driving device includes a housing 20, a magnet holder 30, and a splicing type elastic sheet structure 10 of the lens driving device, wherein the square elastic sheet structure is disposed between the housing 20 and the magnet holder 30, a plurality of first bearing portions 21 are disposed inside the housing 20 and protrude toward a direction close to the square elastic sheet structure, and a plurality of second bearing portions 31 are disposed inside the magnet holder 30 and protrude toward a direction close to the square elastic sheet structure. Compared with the conventional elastic sheet structure, the spliced elastic sheet structure 10 does not have the function of conducting electricity, only has the function of bearing and moving a lens driving device, and compared with the traditional bending spring, the motor conducting property cannot be influenced due to the problem of a spring forming process; meanwhile, the elastic sheet structure 10 is arranged at the position in the driving device, so that the adjustable space of the elastic sheet structure 10 is larger, and the performance is better.

Specifically, in this embodiment, the first bearing portion 21 is used for bearing the second elastic sheet unit 121, and the contact portion thereof is directly connected by dispensing; the second bearing portion 31 is also used for bearing the second elastic sheet unit 121, and the contact portion of the second elastic sheet unit 121 is directly connected through dispensing.

One end of the square elastic sheet structure is fixed on the first bearing part 21 of the shell 20, the other end of the square elastic sheet structure is fixed on the second bearing part 31 of the magnet support 30, the effect of a suspension driving device is effectively achieved, the main suspension of the whole lens driving device can be regarded as the main suspension, and meanwhile, the movement of the whole body in the X/Y axis direction can also be effectively guaranteed in a mode that the bearing parts between the square elastic sheet structure and the spring structure are used for bearing and fixing the elastic sheet structure; one end of the AF lower spring 40 is fixed on the magnet bracket 30, and the other end is fixed on the lower base 50, so that the AF lower spring plays a role of auxiliary supporting the driving device, and can be regarded as an auxiliary suspension of the whole lens driving device.

Further, the number of the first bearing parts 21 is two and the two bearing parts are symmetrically arranged, the number of the second bearing parts 31 is two and the two bearing parts are symmetrically arranged, the first bearing parts 21 and the second bearing parts 31 are alternately arranged to form a square arrangement structure, the overall design of the structure adopting the bearing arrangement is reasonable, and the stress is more stable.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lens drive arrangement's concatenation formula shell fragment structure which characterized in that: the elastic piece group comprises a first elastic piece group (11) and a second elastic piece group (12), wherein the first elastic piece group (11) comprises a plurality of first elastic piece units (111), the second elastic piece group (12) comprises a plurality of second elastic piece units (121), the first elastic piece units (111) and the second elastic piece units (121) are mutually staggered and arranged in a head-tail splicing mode, and a square elastic piece structure is integrally formed.

2. The lens driving device of claim 1, wherein the lens driving device comprises: the plane where the first elastic sheet unit (111) is located is a vertical plane, and the plane where the second elastic sheet unit (121) is located is a horizontal plane.

3. The lens driving device of claim 2, wherein the lens driving device comprises: two ends of the first elastic sheet unit (111) extend upwards or downwards simultaneously to form a splicing part (1111), and two ends of the second elastic sheet unit (121) are provided with splicing openings (1211) matched with the splicing part (1111) simultaneously.

4. The lens driving device of claim 3, wherein the lens driving device further comprises: the splicing part (1111) is a square strip, and the splicing port (1211) is a square port.

5. The lens driving device of claim 3, wherein the lens driving device further comprises: the splicing part (1111) is a square strip, and the splicing port (1211) comprises a square strip part and accommodating parts which are uniformly arranged on the peripheral side of the square strip part.

6. The lens driving device of claim 3, wherein the lens driving device further comprises: the splicing part (1111) comprises at least two protruding blocks, and the splicing port (1211) comprises at least two bayonets which are respectively in one-to-one correspondence with the protruding blocks.

7. The lens driving apparatus splicing type dome structure (10) according to any one of claims 3 to 6, wherein: the splicing port (1211) and the splicing part (1111) are fixedly connected through welding, dispensing or laser welding.

8. A drive device, characterized by: the lens driving device's concatenation formula shell fragment structure (10) including shell (20), magnetite support (30) and any claim 1 to 7, square shell fragment structure set up in between shell (20) and magnetite support (30), the inboard direction that is close to square shell fragment structure of shell (20) is protruding to be provided with the first bearing part of a plurality of (21), magnetite support (30) are protruding to be provided with a plurality of second bearing part (31) to the direction that is close to square shell fragment structure.

9. The drive device according to claim 8, characterized in that: the first elastic sheet set (11) is located below the second elastic sheet set (12), the first elastic sheet unit (111) and the second elastic sheet unit (121) are spliced with each other and are close to one end bottom of the second bearing portion (31) to form a fixing notch, and the magnet support (30) is provided with a dovetail boss (32) at a position corresponding to the fixing notch.

10. The drive device according to claim 8, characterized in that: the number of the first bearing parts (21) is two, the first bearing parts are respectively symmetrically arranged, the number of the second bearing parts (31) is two, the second bearing parts are respectively symmetrically arranged, and the first bearing parts (21) and the second bearing parts (31) are alternately arranged to form a square arrangement structure.