CN216248617U - Driving device for lens module and lens module - Google Patents
Driving device for lens module and lens module Download PDFInfo
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- CN216248617U CN216248617U CN202122986456.8U CN202122986456U CN216248617U CN 216248617 U CN216248617 U CN 216248617U CN 202122986456 U CN202122986456 U CN 202122986456U CN 216248617 U CN216248617 U CN 216248617U
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Abstract
The present invention relates to the field of camera technologies, and in particular, to a driving device for a lens module and a lens module. The driving device comprises a first execution unit, a lower moving plate, a second execution unit and an upper moving plate which are sequentially stacked from bottom to top, wherein the upper moving plate comprises an image sensor mounting area; the first execution unit comprises a first movement area, the lower movement plate is arranged in the first movement area, the first execution unit comprises a first shape memory alloy wire group, and the first shape memory alloy wire group contracts after being electrified so as to drive the lower movement plate to move in the X direction perpendicular to the first shape memory alloy wire group; the second execution unit comprises a second movement area, the upper moving plate is arranged in the second movement area, and the second execution unit comprises a second shape memory alloy wire group which contracts after being electrified so as to drive the upper moving plate to move in the Y direction perpendicular to the second shape memory alloy wire group. The application solves the problem of image optical anti-shake.
Description
Technical Field
The present invention relates to the field of camera technologies, and in particular, to a driving device for a lens module and a lens module.
Background
With the rapid development of multimedia technology, digital cameras, video cameras, tablet computers and mobile phones with cameras are more and more favored by consumers, and in the digital cameras, video cameras, mobile phone cameras and other photographic devices, the lens module is an indispensable component. A camera module generally includes a lens barrel, a lens mount, a lens, and an image sensor. The lens is accommodated in the lens barrel, the image sensor is arranged on the lens base, and the motor drives the image sensor to move for anti-shake.
The image sensor is usually provided with a rigid fpc (flexible Printed circuit) circuit board, and the conventional electromagnetic VCM motor has limited thrust and is difficult to push the image sensor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a driving device for a lens module and the lens module, which solve the problem of image optical anti-shake of terminal equipment.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a driving device for a lens module comprises a first execution unit, a lower moving plate, a second execution unit and an upper moving plate which are sequentially stacked from bottom to top, wherein the upper moving plate comprises an image sensor mounting area;
the first execution unit comprises a first movement area, the lower movement plate is arranged in the first movement area, the first execution unit comprises a first shape memory alloy wire group, and the first shape memory alloy wire group contracts after being electrified so as to drive the lower movement plate to move in the X direction perpendicular to the first shape memory alloy wire group;
the second execution unit comprises a second movement area, the upper moving plate is arranged in the second movement area, and the second execution unit comprises a second shape memory alloy wire group which contracts after being electrified so as to drive the upper moving plate to move in the Y direction perpendicular to the second shape memory alloy wire group.
Preferably, the first execution unit further comprises a first fixing component, a first connecting rod and a plurality of first supporting rods;
the first connecting assembly comprises a plurality of first connecting parts, the first connecting parts are arranged at four corners of the first execution unit, the first fixing assembly is connected with the first connecting parts at two sides through first connecting rods, the first supporting rods are connected with the first connecting parts, and a triangle-like structure is formed between the first supporting rods and the first connecting rods;
the first execution unit comprises a first driving area surrounding the first moving area, the first moving area comprises a plurality of first supporting rods, and the lower moving plate is arranged on the first supporting rods;
in the first driving area, the first shape memory alloy wire group comprises a first shape memory alloy wire and a second shape memory alloy wire which are arranged oppositely, and two ends of the first shape memory alloy wire and two ends of the second shape memory alloy wire are connected with the first connecting part.
Preferably, the first execution unit further includes a first support plate disposed in the first moving region, and the first support plate is connected to the first support rod.
Preferably, the first fixing member includes a first common terminal, a first electrifying fixing terminal and a second electrifying fixing terminal, the first electrifying fixing terminal is used for electrifying the first shape memory alloy wire, and the second electrifying fixing terminal is used for electrifying the second shape memory alloy wire.
Preferably, the second execution unit further comprises a second fixing assembly, a second connecting rod and a plurality of second supporting rods, wherein the second fixing assembly is fixed on the lower moving plate;
the second connecting assembly comprises a plurality of second connecting parts, the second connecting parts are arranged at four corners of the second execution unit, the second fixing assembly is connected with the second connecting parts at two sides through the second connecting rods, the second supporting rod is connected with the second connecting parts, and a triangle-like structure is formed between the second supporting rod and the second connecting rods;
the second execution unit comprises a second driving area surrounding the second moving area, the second moving area comprises a plurality of second supporting rods, and the lower moving plate is arranged on the second supporting rods;
in the second driving area, the second shape memory alloy wire group comprises a third shape memory alloy wire and a fourth shape memory alloy wire which are oppositely arranged, and two ends of the third shape memory alloy wire and two ends of the fourth shape memory alloy wire are both connected with the second connecting part.
Preferably, the second execution unit further includes a second support plate disposed in the second moving region, and the second support plate is connected to the second support rod.
Preferably, the second fixing component comprises a second public end, a third electrifying fixing end and a fourth electrifying fixing end, the third electrifying fixing end is used for electrifying the third shape memory alloy wire, and the fourth electrifying fixing end is used for electrifying the fourth shape memory alloy wire.
Preferably, the portable electronic device further comprises a housing and a fixed bottom plate, the first execution unit is arranged on the fixed bottom plate, the first fixed assembly is fixed on the fixed bottom plate, and the peripheries of the first execution unit and the second execution unit are clamped in the housing.
Preferably, a plurality of sliding bearings or balls are arranged between the gaps of the upper moving plate and the lower moving plate.
A lens module comprises an image sensor unit, a base shell, a lens and a driving device;
the base shell is provided with a mounting hole, the lens is arranged in the mounting hole, and the image sensor unit is arranged on the upper moving plate.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects:
the thrust formed by the shape memory alloy wire is usually 5-20 times of that of the traditional electromagnetic VCM motor, and the thrust requirement can be met. The first shape memory alloy wire group contracts after being electrified to drive the lower moving plate to move in the X direction, the moving direction is perpendicular to the first shape memory alloy wire group, the second execution unit is arranged on the lower moving plate, and the image sensor unit arranged on the upper moving plate also moves in the X direction along with the second execution unit and the upper moving plate.
The second execution unit comprises a second shape memory alloy wire group which contracts after being electrified so as to drive the upper moving plate to move in the Y direction, the moving direction is perpendicular to the second shape memory alloy wire group, and the image sensor unit on the upper moving plate also moves in the Y direction along with the upper moving plate. The image sensor unit realizes independent movement in the X direction and the Y direction.
The driving device comprises a first execution unit, a lower moving plate, a second execution unit and an upper moving plate which are stacked, so that the image sensor unit can realize horizontal translation, and the problem of optical image shake prevention of the terminal equipment is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of an explosive structure of a driving device according to an embodiment of the present invention;
fig. 2 is a schematic view of an exploded structure of a lens module according to an embodiment of the utility model;
fig. 3 is a schematic view of an overall structure of a lens module according to an embodiment of the utility model.
Illustration of the drawings: the device comprises a first execution unit 1, a lower moving plate 3, a second execution unit 2, an upper moving plate 4, a fixed bottom plate 5, a shell 6, an image sensor unit 7, a base shell 8 and a lens 9;
a first shape memory alloy wire 111, a second shape memory alloy wire 112, a first common end 121, a first electrified fixed end 122, a second electrified fixed end 123, a first connecting part 13, a first supporting rod 14, a first connecting rod 15, a first supporting plate 16;
a third shape memory alloy wire 211, a fourth shape memory alloy wire 212, a second common end 221, a third electrical fixed end 222, a fourth electrical fixed end 223, a second connecting portion 23, a second support rod 24, a second connecting rod 25, and a second support plate 26.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
Example one
Referring to fig. 1, a driving apparatus for a lens module includes a first execution unit 1, a second execution unit 2, a lower moving plate 3, and an upper moving plate 4, wherein the first execution unit 1, the lower moving plate 3, the second execution unit 2, and the upper moving plate 4 are sequentially stacked from bottom to top, and the upper moving plate 4 includes an image sensor mounting area;
the first execution unit 1 comprises a first movement area, the lower movement plate 3 is arranged in the first movement area, the first execution unit 1 comprises a first shape memory alloy wire group, and the first shape memory alloy wire group contracts after being electrified so as to drive the lower movement plate 3 to move in the X direction perpendicular to the first shape memory alloy wire group;
the second execution unit 2 includes a second movement region in which the upper moving plate 4 is disposed, and the second execution unit 2 includes a second shape memory alloy wire group that contracts after being energized to drive the upper moving plate 4 to move in a Y direction perpendicular to the second shape memory alloy wire group.
Firstly, the thrust formed by the shape memory alloy wire is usually 5-20 times of that of the traditional electromagnetic VCM motor, and the thrust requirement can be met. The first shape memory alloy wire group contracts after being electrified to drive the lower moving plate 3 to move in the X direction, the moving direction is perpendicular to the first shape memory alloy wire group, the second execution unit 2 is arranged on the lower moving plate 3, the second execution unit 2 moves in the X direction along with the lower moving plate 3, the upper moving plate 4 is arranged on the second execution unit 2, the upper moving plate 4 comprises an image sensor mounting area, and therefore the image sensor unit arranged on the upper moving plate 4 also moves in the X direction along with the second execution unit 2 and the upper moving plate 4.
The second actuator 2 includes a second shape memory alloy wire set which contracts after being energized to drive the upper moving plate 4 to move in the Y direction, the moving direction is perpendicular to the second shape memory alloy wire set, and the image sensor unit on the upper moving plate 4 also moves in the Y direction along with the upper moving plate 4.
The driving device of the embodiment enables the image sensor unit to realize horizontal translation through the first actuator unit 1, the lower moving plate 3, the second actuator unit 2 and the upper moving plate 4 which are arranged in a stacked manner, so that the problem of image optical anti-shake of the terminal equipment is solved.
Larger terminals such as digital cameras currently improve the quality of pixels by adopting the principle of pixel superposition, which requires the displacement of pixels during movement to be in the submicron level. And some small-sized terminals, especially mobile phones, have small internal space, and the internally arranged VCM motor can only push pixels to move in micron order, while the displacement generated by the contraction of the existing shape memory alloy wires is also above micron order, so that the pixel superposition cannot be realized.
In order to further improve the pixel quality, in an alternative embodiment, the first execution unit 1 further includes a first fixing component, a first connecting rod 15, and a plurality of first supporting rods 14;
the first connecting assembly comprises a plurality of first connecting parts 13, the four corners of the first execution unit 1 are provided with the first connecting parts 13, the first fixing assembly is connected with the first connecting parts 13 at two sides through first connecting rods 15, and the first supporting rods 14 are connected with the first connecting parts 13;
the first execution unit 1 comprises a first driving area surrounding a first moving area, the first moving area comprises a plurality of first supporting rods 14, and the lower moving plate 3 is arranged on the first supporting rods 14;
in the first driving region, the first shape memory alloy wire group includes a first shape memory alloy wire 111 and a second shape memory alloy wire 112 which are oppositely disposed, and both ends of the first shape memory alloy wire 111 and the second shape memory alloy wire 112 are connected to the first connecting portion 13. In the present embodiment, the first and second shape memory alloy wires 111 and 112 are disposed at opposite sides of the first actuating unit 1, and the first fixing assembly 12 is disposed at the other two sides.
Specifically, the first fixing assembly is fixed, the first connecting portions 13 are disposed at four corners of the first execution unit 1, two ends of the first shape memory alloy wire 111 and the second shape memory alloy wire 112 are connected to the first connecting portions 13, the first shape memory alloy wire 111 and the second shape memory alloy wire 112 are disposed opposite to each other, the first supporting rod 14 is connected to the first connecting portions 13, a triangle-like structure is formed between the first supporting rod 14 and the first connecting rod 15, and the first execution unit 1 is formed with two triangle-like structures.
When the first shape memory alloy wire 111 is contracted by electricity to generate a driving force, the driving force pushes the first connecting portion 13 and the first support rod 14 to move in a direction close to the second shape memory alloy wire 112, which is defined herein as moving leftward for convenience of description, the lower moving plate 3 is disposed on the first support rod 14, the lower moving plate 3 also moves leftward, and thus the image sensor unit disposed on the upper moving plate 4 also performs leftward movement. Also, when the second shape memory alloy wire 112 is electrically contracted to generate the driving force, the image sensor unit provided on the upper moving plate 4 is also moved rightward. When it is necessary to drive the upper moving plate 4 to move leftward, the first shape memory alloy wire 111 is supplied with an increased current, and the second shape memory alloy wire 112 is supplied with a decreased current.
Because of the above-described triangular-like structure, the amount of displacement generated by the contraction of the first shape memory alloy wire 111 is larger than the amount of displacement resolved onto the first support rod 14. The first fixing component is connected with the first connecting parts 13 at two sides through the first connecting rod 15, because the first connecting component is fixed, the first connecting rod 15 also generates component force during the driving process of the first shape memory alloy wire 111, and the component force and the driving force are respectively generated at two sides of the first supporting rod 14, so the resultant force on the first supporting rod 14 is greater than the driving force generated by the contraction of the first shape memory alloy wire 111. Therefore, the first actuator unit 1 reduces the displacement amount by which the image sensor unit moves with a large resultant force. If the present embodiment adopts a 10-fold reduction ratio, and the contraction displacement of the first shape memory alloy wire set is 5 microns, the displacement of the pixel of the image sensor unit is 0.5 microns each time, which reaches the submicron level of movement. The structural design of the first execution unit 1 can be used for solving the precision problem of image optical anti-shake, and can also be used for synthesizing high-precision images by image pixel translation, thereby realizing the function of improving the image resolution.
In order to enable the pixel point of the image sensor unit to also realize the movement amount of a submicron order in the Y direction, further, the second execution unit 2 further includes a second fixing assembly, a second connecting rod 25 and a plurality of second supporting rods 24, and the second fixing assembly is fixed on the lower moving plate 3;
the second connecting assembly comprises a plurality of second connecting parts 23, the four corners of the second execution unit 2 are provided with the second connecting parts 23, the second fixing assembly is connected with the second connecting parts 23 on the two sides through second connecting rods 25, the second supporting rod 24 is connected with the second connecting parts 23, and a triangle-like structure is formed between the second supporting rod 24 and the second connecting rods 25;
the second execution unit 2 comprises a second driving area surrounding a second moving area, the second moving area comprises a plurality of second support rods 24, and the lower moving plate 3 is arranged on the second support rods 24;
in the second driving region, the second shape memory alloy wire group includes a third shape memory alloy wire 211 and a fourth shape memory alloy wire 212 which are oppositely arranged, and both ends of the third shape memory alloy wire 211 and the fourth shape memory alloy wire 212 are connected with the second connection portion 23.
Further, the first execution unit 1 further includes a first support plate 16, the first support plate 16 is disposed in the first movement region, and the first support plate 16 is connected to the first support bar 14. The second executing unit 2 further includes a second supporting plate 26, the second supporting plate 26 is disposed in the second moving area, and the second supporting plate 26 is connected to the second supporting rod 24. The first support plate 16 is used for placing the lower moving plate 3. The second support plate 26 is used for placing the upper moving plate 4. Optionally, a first support plate 16 is disposed on the first support bar 14 and a second support plate 26 is disposed on the second support bar 24.
In the present application, the first fixing member includes a first common terminal 121, a first energizing fixing terminal 122 and a second energizing fixing terminal 123, the first energizing fixing terminal 122 energizes the first shape memory alloy wire 111, the second energizing fixing terminal 123 energizes the second shape memory alloy wire 112, and both sides are energized respectively to prevent the first actuator unit 1 from short-circuiting.
The second fixing assembly includes a second common terminal 221, a third electrical fixing terminal 222 and a fourth electrical fixing terminal 223, the third electrical fixing terminal 222 energizes the third shape memory alloy wire 211, and the fourth electrical fixing terminal 223 energizes the fourth shape memory alloy wire 212.
Further, the driving device further comprises a housing 6 and a fixed bottom plate 5, the first execution unit 1 is arranged on the fixed bottom plate 5, the first fixed assembly is fixed on the fixed bottom plate 5, the peripheries of the first execution unit 1 and the second execution unit 2 are clamped in the housing 6, and the housing 6 protects the first execution unit 1 and the second execution unit 2 from being scratched.
The shell 6 is provided with a through hole, and the upper moving plate 4 is arranged in the through hole. The fixed bottom plate 5 is fixedly arranged at the bottom of the shell 6, the fixed bottom plate 5 and the shell 6 form an accommodating space, and the first execution unit 1, the lower moving plate 3, the second execution unit 2 and the upper moving plate 4 are all accommodated in the accommodating space.
During the operation of the second actuator 2, the upper moving plate 4 slides relative to the lower moving plate 3. In an alternative embodiment, a plurality of sliding bearings or balls are arranged between the gap between the upper moving plate 4 and the lower moving plate 3, so that the movement of the upper moving plate 4 is facilitated, the gap between the two panels of the upper moving plate 4 and the lower moving plate 3 is ensured to be unchanged, and the displacement of the upper moving plate 4 in the Z direction is facilitated to be kept small.
The first execution unit 1 and the second execution unit 2 are actuators for reducing displacement, and simultaneously realize independent movement in the X direction and the Y direction, so that the driving device is particularly suitable for mobile phones, the internal space of the mobile phones is small, and high-quality pixels can be realized by using the driving device.
Example two
Referring to fig. 2-3, a lens module includes an image sensor unit 7, a base housing 8, a lens 9 and a driving device according to an embodiment;
the base shell 8 is provided with a mounting hole, the lens 9 is arranged in the mounting hole, and the image sensor unit 7 is attached to the upper moving plate 4.
The driving device comprises a first execution unit 1, a lower moving plate 3, a second execution unit 2 and an upper moving plate 4 which are sequentially stacked from bottom to top, wherein the upper moving plate 4 comprises an image sensor mounting area, and an image sensor unit 7 is arranged in the image sensor mounting area;
the first execution unit 1 comprises a first movement area, the lower movement plate 3 is arranged in the first movement area, the first execution unit 1 comprises a first shape memory alloy wire group, and the first shape memory alloy wire group contracts after being electrified so as to drive the lower movement plate 3 to move in the X direction perpendicular to the first shape memory alloy wire group;
the second execution unit 2 includes a second movement region in which the upper moving plate 4 is disposed, and the second execution unit 2 includes a second shape memory alloy wire group that contracts after being energized to drive the upper moving plate 4 to move in a Y direction perpendicular to the second shape memory alloy wire group.
According to the shaking condition of the lens module, the driving device drives the image sensor unit 7 to move in the horizontal direction, so that the optical shaking prevention condition of the image is solved, and the image presented by the image sensor unit 7 is clearer.
In addition, the first supporting rod 14 and the first connecting rod 15 form a first triangle structure, and the first shape memory alloy wire 111 and the second shape memory alloy wire 112 are oppositely arranged on two sides of the first triangle structure. A second triangular structure is formed between the second support rod 24 and the second connecting rod 25, and the third shape memory alloy wire 211 and the fourth shape memory alloy wire 212 are oppositely arranged on two sides of the second triangular structure. The first execution unit 1 and the second execution unit 2 form a larger thrust to push the image sensor unit 7, the image sensor unit 7 has a smaller displacement, the displacement of the pixel point in the image sensor unit 7 is in a submicron level, and the pixel quality of the image is improved through pixel superposition. The lens module of this application not only can improve the precision problem of image optics anti-shake, also can be used to image pixel translation synthesis high accuracy image, improves image resolution function.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The driving device for the lens module is characterized by comprising a first execution unit (1), a lower moving plate (3), a second execution unit (2) and an upper moving plate (4) which are sequentially stacked from bottom to top, wherein the upper moving plate (4) comprises an image sensor mounting area;
the first execution unit (1) comprises a first movement area, the lower movement plate (3) is arranged in the first movement area, the first execution unit (1) comprises a first shape memory alloy wire group, and the first shape memory alloy wire group contracts after being electrified to drive the lower movement plate (3) to move in the X direction perpendicular to the first shape memory alloy wire group;
the second execution unit (2) comprises a second movement area, the upper moving plate (4) is arranged in the second movement area, and the second execution unit (2) comprises a second shape memory alloy wire group which contracts after being electrified so as to drive the upper moving plate (4) to move in the Y direction perpendicular to the second shape memory alloy wire group.
2. The driving apparatus for a lens module according to claim 1, wherein the first actuator unit (1) further comprises a first fixing member, a first connecting rod (15), and a plurality of first supporting rods (14);
the first connecting assembly comprises a plurality of first connecting parts (13), the first connecting parts (13) are arranged at four corners of the first execution unit (1), the first fixing assembly is connected with the first connecting parts (13) at two sides through first connecting rods (15), the first supporting rods (14) are connected with the first connecting parts (13), and a triangle-like structure is formed between the first supporting rods (14) and the first connecting rods (15);
the first execution unit (1) comprises a first driving area surrounding the first moving area, the first moving area comprises a plurality of first supporting rods (14), and the lower moving plate (3) is arranged on the first supporting rods (14);
in the first driving area, the first shape memory alloy wire group comprises a first shape memory alloy wire (111) and a second shape memory alloy wire (112) which are oppositely arranged, and both ends of the first shape memory alloy wire (111) and the second shape memory alloy wire (112) are connected with the first connecting part (13).
3. The driving apparatus for a lens module according to claim 2, wherein the first actuator unit (1) further comprises a first support plate (16), the first support plate (16) being disposed in the first movement region, the first support plate (16) being connected to the first support bar (14).
4. The driving apparatus for a lens module according to claim 2, wherein the first fixing member includes a first common terminal (121), a first energizing fixing terminal (122) and a second energizing fixing terminal (123), the first energizing fixing terminal (122) is used for energizing the first shape memory alloy wire (111), and the second energizing fixing terminal (123) is used for energizing the second shape memory alloy wire (112).
5. The driving apparatus for a lens module according to claim 1, wherein the second actuator unit (2) further comprises a second fixing member fixed to the lower moving plate (3), a second connecting member, a second connecting rod (25) and a plurality of second supporting rods (24);
the second connecting assembly comprises a plurality of second connecting parts (23), the second connecting parts (23) are arranged at four corners of the second execution unit (2), the second fixing assembly is connected with the second connecting parts (23) at two sides through second connecting rods (25), the second supporting rods (24) are connected with the second connecting parts (23), and a triangle-like structure is formed between the second supporting rods (24) and the second connecting rods (25);
the second execution unit (2) comprises a second driving area surrounding the second moving area, the second moving area comprises a plurality of second supporting rods (24), and the lower moving plate (3) is arranged on the second supporting rods (24);
in the second driving area, the second shape memory alloy wire group comprises a third shape memory alloy wire (211) and a fourth shape memory alloy wire (212) which are oppositely arranged, and two ends of the third shape memory alloy wire (211) and two ends of the fourth shape memory alloy wire (212) are connected with the second connecting part (23).
6. The driving apparatus for a lens module according to claim 5, wherein the second actuator unit (2) further comprises a second support plate (26), the second support plate (26) being disposed in the second moving region, the second support plate (26) being connected to the second support rod (24).
7. The driving apparatus for a lens module according to claim 5, wherein the second fixing assembly comprises a second common terminal (221), a third electrical fixing terminal (222) and a fourth electrical fixing terminal (223), the third electrical fixing terminal (222) is used for energizing the third shape memory alloy wire (211), and the fourth electrical fixing terminal (223) is used for energizing the fourth shape memory alloy wire (212).
8. The driving apparatus for a lens module according to claim 2, further comprising a housing (6) and a fixed base plate (5), wherein the first execution unit (1) is disposed on the fixed base plate (5), the first fixed component is fixed on the fixed base plate (5), and the peripheries of the first execution unit (1) and the second execution unit (2) are clamped in the housing (6).
9. The driving apparatus for a lens module according to claim 1, wherein a plurality of sliding bearings or balls are provided between the gaps of the upper moving plate (4) and the lower moving plate (3).
10. A lens module comprising an image sensor unit (7), a base housing (8), a lens (9) and a drive device according to any one of claims 1 to 9;
the base shell (8) is provided with a mounting hole, the lens (9) is arranged in the mounting hole, and the image sensor unit (7) is arranged on the upper moving plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122986456.8U CN216248617U (en) | 2021-11-30 | 2021-11-30 | Driving device for lens module and lens module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122986456.8U CN216248617U (en) | 2021-11-30 | 2021-11-30 | Driving device for lens module and lens module |
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| CN216248617U true CN216248617U (en) | 2022-04-08 |
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