Anti-shake driving device and lens module
By adding a flexible shell to the damping rubber to form a damping rubber package, the problem of easy deformation and cracking of the damping rubber is solved, resulting in more stable camera imaging and motor movement.
Patent Information
- Application Number
- CN202423301192.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the prior art, damping rubber is easily deformed or broken by external impact during the movement of the camera motor, which affects the imaging effect of the camera.
A flexible shell is used to wrap the damping rubber to form a damping rubber package, which enhances its resistance to external impact. Stable movement of the anti-shake movable part is achieved through elastic support components and drive components.
It improves the stability of the damping rubber, avoids deformation and cracking, ensures the imaging effect of the camera, and enhances the stability and precision of the motor movement.
Smart Images
Figure CN223711976U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The embodiment of the utility model belongs to the technical field of anti-shake driving, and particularly relates to an anti-shake driving device and a lens module. BACKGROUND
[0002] The damping glue of the camera motor plays a role in damping in the movement process of the motor, can improve the stability and precision of the motor movement, and thereby provides good focusing and anti-shake performance for the camera.
[0003] The technical scheme of the related products on the market at present is to directly punch the damping glue into the glue containing groove, and part of the surface of the damping glue is exposed. The damping glue has the characteristics of low strength and easy deformation and splashing under external force impact. This leads to the change or rupture of the shape of the damping glue when subjected to external force impact in the assembly and use process of the motor module, affects the performance of the damping glue, and even produces glue particle pollution, so that the imaging effect of the camera is poor. UTILITY MODEL CONTENTS
[0004] The embodiment of the utility model aims to solve one of the technical problems in the prior art, and provides an anti-shake driving device and a lens module.
[0005] In one aspect, the embodiment of the utility model provides an anti-shake driving device, which comprises a shell with a containing space, an anti-shake movable part contained in the containing space, an optical element with an optical axis fixed to the anti-shake movable part, an elastic support assembly suspending the anti-shake movable part in the containing space and movable, a driving assembly driving the anti-shake movable part to move relative to the shell in a plane perpendicular to the optical axis, and an anti-collision assembly arranged between the anti-shake movable part and the shell.
[0006] The anti-collision assembly comprises an anti-collision piece arranged on the anti-shake movable part and a damping glue package arranged on the side of the anti-collision piece facing the shell and connected with the shell; wherein the damping glue package comprises a flexible shell and damping glue filled in the flexible shell.
[0007] Optionally, the anti-collision assembly is located between the shell and the anti-shake movable part, and the flexible shell is a high-molecular thin film shell.
[0008] Optionally, the side of the anti-collision piece facing the shell is provided with a containing groove, and the containing groove is provided with the damping glue package.
[0009] Optionally, the containing groove is located in the central region of the side of the anti-collision piece facing the shell, and the damping glue package protrudes from the surface of the side of the anti-collision piece facing the shell.
[0010] Optionally, the anti-shake movable part comprises a base fixed to the elastic support assembly and an anti-shake support fixed to the elastic support assembly; the optical element comprises an image sensor fixed to the base, and the anti-shake support is arranged around the image sensor, and the anti-collision member is connected to the anti-shake support.
[0011] Optionally, the elastic support assembly comprises a first support spring fixed to the base, a second support spring arranged around the first support spring and spaced from the first support spring, and a connecting portion connecting the first support spring and the second support spring; the second support spring is fixed to the shell.
[0012] The anti-collision member is arranged between the second support spring and the anti-shake support, and the side of the anti-collision member away from the anti-shake support is connected to the second support spring.
[0013] Optionally, the anti-shake driving device comprises at least one pair of the anti-collision assembly.
[0014] Each pair of the anti-collision assembly is arranged on opposite sides of the anti-shake support.
[0015] Optionally, the second support spring comprises a body portion arranged around the first support spring, and an extension portion bent and extended from the body portion; the extension portion and the anti-collision member are located on different sides of the anti-shake support, and the elastic support assembly is fixed to the shell through the extension portion.
[0016] Optionally, the driving assembly comprises a coil fixed to one of the anti-shake support and the shell, and a magnetic steel fixed to the other of the anti-shake support and the shell and opposite to the coil.
[0017] In another aspect, the embodiment of the utility model provides a lens module, including lens and the anti-shake driving device of foregoing record, the shell has through -hole, and light is sequentially through the lens, the through -hole reaches the optical element.
[0018] The anti-shake driving device and the lens module of the embodiment of the utility model can avoid deformation and rupture of the damping glue under external force impact through the setting of the damping glue bag, are more stable in performance, and also will not produce glue particle pollution lens module. ACCURACY OF DRAWINGS
[0019] Figure 1 It is the whole structure schematic diagram of a kind of anti-shake driving device of an embodiment of the utility model;
[0020] Figure 2 It is Figure 1 Sectional view schematic diagram along A-A line;
[0021] Figure 3 is a schematic diagram of the exploded view of the three-dimensional structure; Figure 1
[0022] Figure 4 is a schematic diagram of the overall structure after removing the upper cover plate. Figure 1 DETAILED DESCRIPTION
[0023] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.
[0024] As shown in Figures 1 to 4 , an anti-shake driving device 100 includes a housing 110 having a receiving space 101, an anti-shake movable part 150 received in the receiving space 101, an optical element 160 having an optical axis 200 fixed to the anti-shake movable part 150, an elastic support assembly 120 suspending the anti-shake movable part 150 in the receiving space 101, a driving assembly 130 driving the anti-shake movable part 150 to move relative to the housing 110 in a plane perpendicular to the optical axis 200, and an anti-collision assembly 140 arranged between the anti-shake movable part 150 and the housing 110.
[0025] The anti-collision assembly 140 includes an anti-collision piece 141 arranged on the anti-shake movable part 150 and a damping rubber package 142 arranged on the side of the anti-collision piece 141 facing the housing 110 and connected with the housing 110. The damping rubber package 142 includes a flexible shell 1421 and a damping rubber 1422 filled in the flexible shell 1421.
[0026] Specifically, as shown in Figures 1 to 4 , the anti-shake movable part 150 is movably suspended in the receiving space 101 of the housing 110 under the action of the elastic support assembly 120. The anti-shake movable part 150 is further provided with the optical element 160 having the optical axis 200, and the optical element 160 is fixedly connected with the anti-shake movable part 150. As an example, as shown in Figure 2 and Figure 3 , the anti-shake driving device 100 further includes a filter holder 171 and a filter 172. The filter holder 171 is arranged on the anti-shake movable part 150, and the central region of the filter holder 171 has a placing through slot 1711 for placing the filter 172.
[0027] Under the driving effect of the driving assembly 130, the anti-shake movable part 150 can move in the plane perpendicular to the optical axis 200 relative to the shell 110, and the optical element 160 moves in the plane perpendicular to the optical axis 200 relative to the shell 110. During the movement, the damping rubber package 142 provided on the anti-collision part 141 can effectively resist external force impact. Among them, the damping rubber package 142 is to inject the damping rubber 1422 into the flexible shell 1421 to form a kind of rubber package structure. It should be noted that the movement of the anti-shake movable part in the plane perpendicular to the optical axis includes that it can translate and rotate in the plane.
[0028] Further, the flexible shell 1421 is a high molecular film shell. That is, the damping rubber package 142 is to inject the damping rubber 1422 into the shell composed of a high molecular film to form a kind of rubber package structure. The high molecular film shell has a substantial improvement in strength and external force impact resistance compared to the damping rubber itself, and will not deform and break due to external force impact during subsequent assembly and use of the lens module (such as the motor module), the performance is more stable, and will not produce rubber particles to contaminate the lens module.
[0029] Exemplarily, as shown in Figures 1 to 4 The anti-collision part 141 is provided with a containing groove 1411 on one side facing the shell 110, and the damping rubber package 142 is arranged in the containing groove 1411.
[0030] Specifically, as shown in Figures 1 to 4 The containing groove 1411 is arranged on the top of the anti-collision part 141, and the damping rubber package 142 is placed in the containing groove 1411 and fixed in the containing groove 1411, such as by adhesion or clamping. The arrangement of the containing groove enables the damping rubber package to be better fixed to the anti-collision part, which not only enhances the protection, but also further saves space.
[0031] Further, the containing groove 1411 is located in the central region of the side of the anti-collision part 141 facing the shell 110.
[0032] Further, the damping rubber package 142 protrudes from the surface of the side of the anti-collision part 141 facing the shell 110. One end of the damping rubber package 142 is located in the containing groove 1411, and the other end protrudes from the containing groove 1411 and the surface of the side of the anti-collision part 141 facing the shell 110. In addition, the damping rubber package 142 can be provided in a columnar structure. Of course, the damping rubber package 142 can also be designed in other shapes, as long as it is suitable for the containing groove 1411 and can protrude from the surface of the side of the anti-collision part 141 facing the shell 110.
[0033] Exemplarily, as shown in Figures 1 to 4As shown, the anti-shake movable part 150 includes a base 151 fixed to the elastic support assembly 120 and an anti-shake support 152 fixed to the elastic support assembly 120. The optical element 160 includes an image sensor fixed to the base 151, the anti-shake support 152 is arranged around the image sensor, and the anti-collision piece 141 is connected to the anti-shake support 152.
[0034] Further, the elastic support assembly 120 includes a first support spring 121 fixed to the base 151, a second support spring 122 arranged around the first support spring 121 and spaced from the first support spring 121, and a connecting part 123 connecting the first support spring 121 and the second support spring 122. The second support spring 122 is fixed to the housing 110. The anti-collision piece 141 is arranged between the second support spring 122 and the anti-shake support 152, and the side of the anti-collision piece 141 away from the anti-shake support 152 is connected to the second support spring 122.
[0035] Specifically, as shown in the figures, Figures 1 to 4 The central region of the first support spring 121 is provided with a first through hole 1211, the base 151 is arranged on the lower side of the first support spring 121, the anti-shake support 152 is arranged on the upper side of the first support spring 121, and the central region of the anti-shake support 152 is provided with a second through hole 1521. The image sensor is fixed to the base 151 and corresponds to the second through hole 1521. The filter support 171 is arranged on the side of the anti-shake support 152 away from the first support spring 121.
[0036] The second support spring 122 includes a body part 1221 arranged around the first support spring 121, and an extension part 1222 bent and extended from the body part 1221. The extension part 1222 and the anti-collision piece 141 are located on different sides of the anti-shake support 152, and the elastic support assembly 120 is fixed to the housing 110 through the extension part 1222. Optionally, the elastic support assembly 120 is fixed to the housing 110 only through the extension part 1222.
[0037] As shown in the figures, Figures 1 to 4 The housing 110 includes an upper cover plate 112 and a lower bottom plate 113, and the top of the upper cover plate 112 can be provided with a through hole 111 for light to enter. The extension part 1222 is fixed to the lower bottom plate 113, so as to suspend the body part 1221 in the accommodation space 101, and further suspend the first support spring 121 in the accommodation space 101. The left and right sides of the anti-collision piece 141 are respectively connected to the anti-shake support 152 and the body part 1221. The anti-shake movable part 150 is arranged on the first support spring 121.
[0038] The driving assembly 130 includes a coil 131 fixed to one of the anti-shake bracket 152 and the shell 110, and a magnetic steel (not shown in the figure) fixed to the other of the anti-shake bracket 152 and the shell 110 and opposite to the coil 131. As a specific example, as shown in the figure, the coil 131 can be arranged at the edge area of the side of the anti-shake bracket 152 away from the base 151. As shown in the figure, one coil 131 is arranged at each of the four corners of the side of the anti-shake bracket 152 away from the base 151. In addition, a magnetic steel is arranged at the position corresponding to each of the four coils 131 on the inner wall of the top of the upper cover plate 112, to drive the image sensor to move and drive the elastic support assembly 120 to move, and the two can simultaneously move in the plane perpendicular to the optical axis. Figures 2 to 4
[0039] It should be noted that the embodiments of the present disclosure can be applied to the technical solutions of sensor shift and VCM (Voice Coil Motor), and can also be applied to other camera motors, and the present disclosure does not limit the actual application thereof.
[0040] As another specific example, the anti-shake movable part 150 includes a lens assembly. One end of the lens assembly is supported on the elastic support assembly 120, and the other end of the lens assembly is installed in the through hole 111 of the shell 110. Wherein, under the driving action of the driving assembly 130, the lens assembly can move in the plane perpendicular to the optical axis 200.
[0041] As a specific example, as shown in the figure, the anti-shake driving device 100 includes at least one pair of anti-collision assemblies 140. Each pair of anti-collision assemblies 140 is arranged at the opposite sides of the anti-shake bracket 152. Figures 1 to 4
[0042] Specifically, as shown in the figure, a pair of anti-collision assemblies 140 are symmetrically arranged at the left and right sides of the anti-shake bracket 152. Of course, the anti-collision assemblies 140 can be arranged in one pair, two pairs, three pairs, or different numbers according to actual application needs. Figures 1 to 4
[0043] The anti-shake driving device of the embodiment of the present disclosure can avoid deformation and rupture of the damping glue under external force impact through the damping glue package, has more stable performance, and will not produce glue particle pollution of the lens module, to further improve the imaging effect. The stability and precision of motor movement can be further improved, thereby providing excellent focusing and anti-shake performance for the camera.
[0044] In another aspect, the utility model still provides a kind of lens module, the lens module includes lens and the anti-shake driving device of the foregoing, the specific structure of the anti-shake driving device can refer to the foregoing relevant record, here not too much repetition.Said shell has a through hole, light is sequentially through the lens, the through hole reaches the optical element.
[0045] It can be understood that the above embodiments are only exemplary embodiments adopted for illustrating the principles of the utility model, but the utility model is not limited to this. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the utility model, and these modifications and improvements are also regarded as the protection scope of the utility model.
Claims
1. An anti-shake driving device, characterized in that, The anti-shake driving device comprises a housing having a receiving space, an anti-shake movable part received in the receiving space, an optical element having an optical axis fixed to the anti-shake movable part, an elastic support assembly suspending the anti-shake movable part in the receiving space, a driving assembly driving the anti-shake movable part to move relative to the housing in a plane perpendicular to the optical axis, and an anti-collision assembly arranged between the anti-shake movable part and the housing. The anti-collision assembly comprises an anti-collision part arranged on the anti-shake movable part and a damping rubber package arranged on a side of the anti-collision part facing the housing and connected with the housing; the damping rubber package comprises a flexible shell and damping rubber filled in the flexible shell.
2. The anti-shake driving apparatus according to claim 1, characterized in that, The flexible shell is a high-molecular film shell.
3. The anti-shake driving apparatus according to claim 1, wherein A containing groove is arranged on the side of the anti-collision part facing the housing, and the damping rubber package is arranged in the containing groove.
4. The anti-shake driving apparatus according to claim 3, wherein The containing groove is located in a central region of the side of the anti-collision part facing the housing, and the damping rubber package protrudes from the surface of the side of the anti-collision part facing the housing.
5. The anti-shake driving apparatus according to claim 1, wherein The anti-shake movable part comprises a base fixed to the elastic support assembly and an anti-shake support fixed to the elastic support assembly; the optical element comprises an image sensor fixed to the base, the anti-shake support is arranged around the image sensor, and the anti-collision part is connected to the anti-shake support.
6. The anti-shake driving apparatus according to claim 5, wherein The elastic support assembly comprises a first support spring fixed to the base, a second support spring arranged around the first support spring and spaced from the first support spring, and a connecting part connecting the first support spring and the second support spring; the second support spring is fixed to the housing. The anti-collision part is arranged between the second support spring and the anti-shake support, and a side of the anti-collision part away from the anti-shake support is connected to the second support spring.
7. The anti-shake driving apparatus according to claim 5, wherein The anti-shake driving device comprises at least one pair of the anti-collision assemblies. Each pair of the anti-collision assemblies is arranged on opposite sides of the anti-shake support.
8. The anti-shake driving apparatus according to claim 6, wherein The second support spring comprises a body part arranged around the first support spring, and an extension part bent and extended from the body part; the extension part and the anti-collision part are located on different sides of the anti-shake support, and the elastic support assembly is fixed to the housing through the extension part.
9. The anti-shake driving apparatus according to claim 5, wherein The driving assembly comprises a coil fixed to one of the anti-shake support and the housing, and a magnetic steel fixed to the other of the anti-shake support and the housing and opposite to the coil.
10. A lens module, characterized by, The anti-shake driving device comprises a lens and any one of the anti-shake driving devices according to claims 1 to 9, the housing has a through hole, and light passes through the lens and the through hole in sequence to reach the optical element.