camera module

Abstract

The present invention discloses a camera module, comprising a base, a lens module, and a drive device. The lens module is used to capture images. The drive device is disposed on the side of the lens module and includes a plurality of memory alloy wires connected to the middle portion of the side of the lens module and extending to both sides to connect to the base. The combined torque generated by the plurality of memory alloy wires when energized and contracted drives the lens module to rotate about a fixed axis relative to the base. The drive device is disposed on the side of the lens module and, through the energized contraction of the memory alloy wires, causes the lens module to rotate about a fixed axis relative to the base. This allows the lens module to rotate at a larger angle and faster speed, enabling the lens module to be quickly adjusted to a desired position, enabling the lens module to clearly capture images and achieving good imaging performance for the camera module.

Description

Technical Field

[0001] The present invention relates to the technical field of camera equipment, and in particular to a camera module. Background Art

[0002] In the prior art, ultra-small camera modules with high-level functions have been widely used in mobile communication terminals such as tablet personal computers and smart phones. As mobile communication terminals are miniaturized, the impact of hand shaking when capturing images may become obvious, thereby degrading image quality. Therefore, in order to obtain clear image quality, technology for compensating for hand shaking is needed. For example, when capturing an image, when hand shaking occurs, a lens driving device that uses optical image stabilization (OIS) technology can be used to compensate for hand shaking. Generally, when the camera module moves, the driving device applies a force in the opposite direction to pull the lens in the opposite direction, so that the lens shaking amplitude is reduced. However, this method has too small a distance and angle for the lens drive. When the lens shaking amplitude is large, the driving device cannot effectively play an anti-shake role on the lens, and the image is severely blurred. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a camera module that drives a lens at a larger angle and has a better anti-shake function.

[0004] According to an embodiment of the present invention, a camera module includes a base, a lens module and a driving device, wherein the lens module is used to capture images; the driving device is arranged on the side of the lens module, and the driving device includes a plurality of memory alloy wires, which are connected to the middle part of the side of the lens module and extend to both sides to connect with the base; the combined torque generated by the contraction of the plurality of memory alloy wires when energized drives the lens module to rotate relative to the base.

[0005] The camera module according to the embodiment of the present invention has at least the following technical effects: the lens module is used to capture images, the driving device is arranged on the side of the lens module, and the force generated by the contraction of the memory alloy wire when it is energized generates a torque effect, causing the lens module to rotate relative to the base, so that the lens module rotates at a larger angle and a faster speed, and the lens module can be quickly adjusted to the required position, so that the lens module can clearly capture images, and the camera module achieves good imaging performance.

[0006] In some specific embodiments of the present invention, a first electrical terminal and a second electrical terminal are further included, wherein the first electrical terminal is arranged in the middle of the side of the lens module, and the second electrical terminal is arranged at both ends of the base, and the memory alloy wire is connected to the lens module and the base through the first electrical terminal and the second electrical terminal.

[0007] In some specific embodiments of the present invention, the memory alloy wire includes a first memory alloy wire and a second memory alloy wire arranged horizontally; one end of the first memory alloy wire is connected to the top of the first electrical terminal, and the other end is connected to the second electrical terminal on one side of the base; one end of the second memory alloy wire is connected to the bottom of the first electrical terminal, and the other end is connected to the second electrical terminal on the other side of the base.

[0008] In some specific embodiments of the present invention, the memory alloy wire includes a third memory alloy wire and a fourth memory alloy wire arranged horizontally, and the two ends of the third memory alloy wire and the fourth memory alloy wire are respectively connected to the second electrical terminal; the middle part of the third memory alloy wire is connected to the top of the first electrical terminal; and the middle part of the fourth memory alloy wire is connected to the bottom of the first electrical terminal.

[0009] In some specific embodiments of the present invention, a first metal plate and a second metal plate are further included, wherein the first metal plate is arranged in the middle of the lens module and protrudes downward, and the second metal plate is arranged at both ends of the base; the memory alloy wire is arranged at an angle, with one end connected to the bottom of the first metal plate and the other end connected to the second metal plate.

[0010] In some specific embodiments of the present invention, the memory alloy wire includes a fifth memory alloy wire and a sixth memory alloy wire, and the fifth memory alloy wire and the sixth memory alloy wire are symmetrically arranged on both sides of the first metal plate with respect to the first metal plate.

[0011] In some specific embodiments of the present invention, a top ball is further included, which is located in the middle of the bottom surface of the lens module. The lens module is in contact with the base through the top ball and rotates relative to the base with the top ball as a support point.

[0012] In some specific embodiments of the present invention, a turning portion is further included, which is arranged on the base and corresponds to the positions of the two side corners of the lens module. One end of the memory alloy wire is connected to the first metal plate, and the other end passes around the turning portion on one side of the base and is connected to the second metal plate on the other side of the base.

[0013] In some specific embodiments of the present invention, an upper spring plate is further included. The upper spring plate is located on the top of the lens module and is connected to the lens module and the base.

[0014] In some specific embodiments of the present invention, a circuit board is further included. The circuit board is disposed on the base and connected to the bottom of the lens module.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of the overall structure of a first embodiment of a camera module according to the present invention;

[0018] Figure 2 2 is a schematic diagram of the state change of the lens module according to the first embodiment of the camera module of the present invention;

[0019] Figure 3 is a schematic top view of the structure of a camera module according to a first embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of the overall structure of a second embodiment of a camera module according to the present invention;

[0021] Figure 5 is a side structural diagram of a second embodiment of a camera module according to the present invention;

[0022] Figure 6 is a schematic diagram of the overall structure of a camera module according to a third embodiment of the present invention;

[0023] Figure 7 is a schematic diagram of the overall structure of a camera module according to a fourth embodiment of the present invention;

[0024] Figure 8 is a schematic cross-sectional view of the structure of a camera module according to a fourth embodiment of the present invention;

[0025] Figure 9 2 is a schematic diagram of the base structure of a camera module according to a fourth embodiment of the present invention.

[0026] Reference numerals:

[0027] Base 100, boss 110, groove 111, lens module 200,

[0028] The first memory alloy wire 310, the second memory alloy wire 320, the third memory alloy wire 330, the fourth memory alloy wire 340, the fifth memory alloy wire 350, the sixth memory alloy wire 360,

[0029] The first electrical terminal 410 , the second electrical terminal 420 , the first metal plate 510 , the second metal plate 520 , the turning portion 521 , the upper spring piece 600 , the circuit board 700 , the top bead 800 , and the optical axis S. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference below Figures 1 to 9 A camera module according to an embodiment of the present invention will be described.

[0035] According to an embodiment of the present invention, a camera module includes a base 100, a lens module 200 and a driving device. The base 100 supports the lens module 200, and the lens module 200 is used to capture images. The driving device is arranged on the side of the lens module 200. The driving device includes a plurality of memory alloy wires, which are connected to the middle of the side of the lens module 200 and extend to both sides to connect with the base 100. The combined torque generated by the force of the plurality of memory alloy wires contracting when energized drives the lens module 200 to rotate relative to the base 100.

[0036] For example Figures 1 to 2As shown, the base 100 is located at the bottom, and pillars are provided at the four corners of the base 100. The lens module 200 is located in the space surrounded by the four pillars of the base 100, and the lens module 200 is used to capture images. The driving device is provided on the side of the lens module 200, and two memory alloy wires are provided on each side of the lens module 200. The memory alloy wires are connected to the middle of the side of the lens module 200 and extend to both sides to connect with the base 100. The resultant torque generated by the force of the memory alloy wires contracting when energized drives the lens module 200 to rotate relative to the base 100. The resultant torque of the torques of the various memory alloy wires on the lens module 200 drives the lens module 200 to rotate relative to the base 100, for example Figure 2 shown.

[0037] In this way, instead of using the memory alloy wire to pull the lens module 200 in opposite directions, the memory alloy wire can adjust the movement speed of the lens module 200 faster, the angle of movement of the lens module 200 is larger, and the image quality captured by the lens module 200 can be adjusted more quickly. At the same time, the length of the memory alloy wire can be set longer, thereby having a larger driving stroke.

[0038] In some specific embodiments of the present invention, a first electrical terminal 410 and a second electrical terminal 420 are further included. The first electrical terminal 410 is arranged in the middle of the side of the lens module 200, and the second electrical terminal 420 is arranged at both ends of the base 100. The memory alloy wire is connected to the lens module 200 and the base 100 through the first electrical terminal 410 and the second electrical terminal 420.

[0039] For example Figure 1 and Figure 4 As shown, the camera module also includes a first electrical terminal 410 and a second electrical terminal 420. The first electrical terminal 410 is arranged in the middle of the side of the lens module 200, and the second electrical terminal 420 is arranged at both ends of the base 100. The memory alloy wire is connected to the lens module 200 and the base 100 through the first electrical terminal 410 and the second electrical terminal 420. When the memory alloy wire is energized and contracted, it can drive the lens module 200 to rotate relative to the base 100.

[0040] The provision of the first electrical terminal 410 and the second electrical terminal 420 not only provides power and secures the position of the memory alloy wire, but also allows adjustment of the angle and position of the memory alloy wire, so that the resultant torque generated by the contraction of the memory alloy wire upon powering on can drive the lens module 200 to rotate relative to the base 100. The first electrical terminal 410 can be considered a lever arm. The first electrical terminal 410 is provided at the center of the side of the lens module 200, and the memory alloy wire is connected to the end of the first electrical terminal 410. The force of the memory alloy wire uses the first electrical terminal 410 as a lever arm, generating a torque with the center of the side of the lens module 200 as the fixed axis, thereby driving the lens module 200 to rotate.

[0041] In some specific embodiments of the present invention, the memory alloy wire includes a first memory alloy wire 310 and a second memory alloy wire 320 arranged horizontally; one end of the first memory alloy wire 310 is connected to the top of the first electrical terminal 410, and the other end is connected to the second electrical terminal 420 on one side of the base 100; one end of the second memory alloy wire 320 is connected to the bottom of the first electrical terminal 410, and the other end is connected to the second electrical terminal 420 on the other side of the base 100.

[0042] For example Figure 1 and Figure 2 As shown, the first memory alloy wire 310 and the second memory alloy wire 320 are both arranged horizontally. One end of the first alloy wire is connected to the top of the first electrical terminal 410, and the other end is connected to the second electrical terminal 420 on one side of the base 100. One end of the second memory alloy wire 320 is connected to the bottom of the first electrical terminal 410, and the other end is connected to the second electrical terminal 420 on the other side of the base 100. The second electrical terminal 420 is arranged on the base 100. By connecting the first electrical terminal 410 and the second electrical terminal 420, the memory alloy wire can support the lens module 200.

[0043] The first memory alloy wire 310 is connected to the top of the first electrical terminal 410, and the second memory alloy wire 320 is connected to the bottom of the first electrical terminal 410. The connection directions of the first memory alloy wire 310 and the second memory alloy wire 320 are opposite. When the first memory alloy wire 310 and the second memory alloy wire 320 are energized and contracted, the directions of the forces generated by the first memory alloy wire 310 and the second memory alloy wire 320 are opposite. The resultant torque generated by the first electrical terminal 410 as the lever arm causes the lens module 200 to rotate relative to the base 100, thereby quickly adjusting the position and angle of the lens module 200 and facilitating image capture by the lens module 200. By arranging the first memory alloy wire 310 and the second memory alloy wire 320 in this manner, the axis of rotation of the resultant torque passes perpendicularly through the optical axis S of the lens module 200.

[0044] In some specific embodiments of the present invention, the memory alloy wire includes a third memory alloy wire 330 and a fourth memory alloy wire 340 arranged horizontally, and the two ends of the third memory alloy wire 330 and the fourth memory alloy wire 340 are respectively connected to the second electrical terminal 420; the middle of the third memory alloy wire 330 is connected to the top of the first electrical terminal 410; and the middle of the fourth memory alloy wire 340 is connected to the bottom of the first electrical terminal 410.

[0045] For example Figure 4 and Figure 5In the second embodiment shown, the memory alloy wires include a third memory alloy wire 330 and a fourth memory alloy wire 340 arranged horizontally. The ends of the third memory alloy wire 330 and the fourth memory alloy wire 340 are respectively connected to the second electrical terminal 420 on the base 100. The middle portion of the third memory alloy wire 330 is connected to the top of the first electrical terminal 410, and the middle portion of the fourth memory alloy wire 340 is connected to the bottom of the first electrical terminal 410. There is one first electrical terminal 410 located in the center of the side of the lens module 200, and there are four second electrical terminals 420, each connected to the ends of the third memory alloy wire 330 and the fourth memory alloy wire 340.

[0046] With this arrangement, when power is applied between the first electrical terminal 410 and the second electrical terminal 420 on one side of the base 100, the memory alloy wire located between the first electrical terminal 410 and the second electrical terminal 420 contracts, thereby driving the lens module 200 to rotate using the first electrical terminal 410 as a lever. This allows the driving device on the same side to drive the lens module 200 to rotate in a wider range of angles and directions.

[0047] In some specific embodiments of the present invention, a first metal plate 510 and a second metal plate 520 are further included. The first metal plate 510 is arranged in the middle of the lens module 200 and protrudes downward, and the second metal plate 520 is arranged at both ends of the base 100; the memory alloy wire is arranged at an angle, one end is connected to the bottom of the first metal plate 510, and the other end is connected to the second metal plate 520.

[0048] For example Figure 6 and Figure 7 As shown, the first metal plate 510 and the second metal plate 520 are plate-shaped. The first metal plate 510 is arranged in the middle of the lens module 200 and protrudes downward, and the second metal plate 520 is arranged at both ends of the base 100. The memory alloy wire is arranged at an angle, with one end connected to the bottom of the first metal plate 510 and the other end connected to the second metal plate 520.

[0049] Through such a setting, the memory alloy wire can play a supporting role for the lens module 200, and the memory alloy wire can use the first metal plate 510 as a lever arm and the portion where the first metal plate 510 is fixedly connected to the lens module 200 as a rotating shaft to drive the lens module 200 to rotate relative to the base 100, so that the lens module 200 can quickly reach a suitable position.

[0050] In some specific embodiments of the present invention, the memory alloy wires include a fifth memory alloy wire 350 and a sixth memory alloy wire 360 ​​. The fifth memory alloy wire 350 and the sixth memory alloy wire 360 ​​are symmetrically arranged on both sides of the first metal plate 510 .

[0051] For example Figure 6 and Figure 7 As shown, the memory alloy wires include a fifth memory alloy wire 350 and a sixth memory alloy wire 360, which are symmetrically arranged on both sides of the first metal plate 510. Through this arrangement, the memory alloy wires can effectively fix the lens module 200, and the memory alloy wires can be driven from both sides, so that the lens module 200 can rotate in more directions. Through this arrangement, when the driving device drives the lens module 200, the fifth memory alloy wire 350 and the sixth memory alloy wire 360 ​​can be energized and contracted, and the torque generated causes the lens module 200 to rotate relative to the base 100, and the direction of the combined force of the fifth memory alloy wire 350 and the sixth memory alloy wire 360 ​​is the same as the direction of the optical axis S of the lens module 200.

[0052] Furthermore, the driving device is provided in multiple groups, and each side of the lens module 200 is provided with a driving device. Figures 1 to 3 As shown, there are four sets of drive devices, one set on each side of the lens module 200. Providing drive devices on each side of the lens module 200 allows the camera module to drive the lens module 200 from all directions, making it easier to adjust the position of the lens module 200.

[0053] In some specific embodiments of the present invention, the camera module also includes a top bead 800, which is located in the middle of the bottom surface of the lens module 200. The lens module 200 is in contact with the base 100 through the top bead 800 and rotates relative to the base 100 with the top bead 800 as the support point.

[0054] For example Figure 8 and Figure 9 In the fourth embodiment shown, a top bead 800 is located in the middle of the bottom surface of the lens module 200. A boss 110 protrudes upward from the center of the base 100. The top of the boss 110 is recessed inward to form a groove 111. Groove 111 is hemispherical and sized to accommodate the top bead 800. The top bead 800 is located in groove 111, contacting the base 100 and connecting to the lens module 200 at its top.

[0055] This arrangement allows the top bead 800 to support the lens module 200. When the memory alloy wire contracts upon powering, the lens module 200 can rotate relative to the base 100, driven by the memory alloy wire and using the top bead 800 as a support point. The same applies to the third embodiment of the present invention.

[0056] In some specific embodiments of the present invention, a turning portion 521 is further included. The turning portion 521 is arranged on the base 100 and corresponds to the positions of the two side corners of the lens module 200. One end of the memory alloy wire is connected to the first metal plate 510, and the other end passes around the turning portion 521 on one side of the base 100 and is connected to the second metal plate 520 on the other side of the base 100.

[0057] For example Figure 7 As shown, the camera module also has a turning portion 521. Furthermore, the turning portion 521 is arranged on the second metal plate 520 of the base 100. One end of the memory alloy wire is connected to the first metal plate 510, and the other end passes around the turning portion 521 of the second metal plate 520 on one side of the base 100 and is connected to the second metal plate 520 on the other side of the base 100.

[0058] By setting the turning portion 521, the length of the memory alloy wire can be extended, thereby increasing the driving stroke of the memory alloy wire. At the same time, a smaller space is used, which saves space and is conducive to the miniaturization of the camera module.

[0059] Furthermore, the steering portion 521 may adopt a steering bearing or a fixed pulley to reduce the friction of the memory alloy wire on the steering portion 521.

[0060] In some specific embodiments of the present invention, an upper spring piece 600 is further included. The upper spring piece 600 is located on the top of the lens module 200 and is connected to the lens module 200 and the base 100 .

[0061] For example Figure 1 and Figure 3 As shown, the camera module is further provided with an upper spring piece 600 , which is arranged on the top of the lens module 200 , connected to the lens module 200 and the base 100 , and serves to suspend the lens module 200 .

[0062] For example Figure 3 As shown, the upper spring piece 600 is located at the top of the base 100, and the lens module 200 is located in the middle of the base 100. The periphery of the upper spring piece 600 is connected to the base 100, and the middle part is connected to the lens module 200, so that the lens module 200 is suspended in the base 100, thereby suspending the lens module 200.

[0063] By such an arrangement, the stability of the lens module 200 is increased, so that in addition to being supported by the driving device, the lens module 200 is also supported by the upper spring piece 600 as a suspension system, and its position is more stable.

[0064] In some specific embodiments of the present invention, a circuit board 700 is further included. The circuit board 700 is disposed on the base 100 and is connected to the lens module 200 .

[0065] For example Figure 1 and Figure 3 As shown, the camera module also includes a circuit board 700, which is mounted on the base 100 and connected to the bottom of the lens module 200 at its center. The circuit board 700 is connected to the bottom of the lens module 200 and can receive image signals captured by the lens module 200. The portion of the circuit board 700 connected to the base 100 is provided with a socket that can be plugged into the motherboard of a mobile terminal such as a mobile phone to convert the image signal into an electrical signal for transmission.

[0066] Furthermore, the circuit board 700 may be a flexible circuit board 700 , so that the circuit board 700 can rotate along with the lens module 200 without affecting the rotation of the lens module 200 .

[0067] Reference below Figures 1 to 3 The camera module according to the embodiment of the present invention is described in detail with reference to a specific embodiment. It should be understood that the following description is only for illustrative purposes and is not intended to limit the present invention.

[0068] like Figures 1 to 3 As shown, the camera module includes a base 100, a lens module 200, and a drive device. The base 100 is located at the bottom, with a support column at each of the four corners. The lens module 200 is located in the space surrounded by the four support columns. The lens module 200 is connected to the base 100 via an upper spring plate 600 and the drive device. The upper spring plate 600 is located at the top of the lens module 200. The periphery of the upper spring plate 600 is fixedly connected to the base 100, and the middle portion is fixedly connected to the lens module 200, thereby suspending the lens module 200 above the base 100.

[0069] There are multiple groups of driving devices, and each side of the lens module 200 is provided with a driving device. The driving device includes a first memory alloy wire 310 and a second memory alloy wire 320. A first electrical terminal 410 is provided in the middle part of the lens module 200, and a second electrical terminal 420 is provided on both sides of the base 100. The first memory alloy wire 310 and the second memory alloy wire 320 are respectively connected to the lens module 200 and the base 100 through the first electrical terminal 410 and the second electrical terminal 420.

[0070] For example Figure 2As shown, the first memory alloy wire 310 and the second memory alloy wire 320 are both arranged horizontally. One end of the first alloy wire is connected to the top of the first electrical terminal 410, and the other end is connected to the second electrical terminal 420 on one side of the base 100. One end of the second memory alloy wire 320 is connected to the bottom of the first electrical terminal 410, and the other end is connected to the second electrical terminal 420 on the other side of the base 100. The second electrical terminal 420 is arranged on the base 100. By connecting the first electrical terminal 410 and the second electrical terminal 420, the memory alloy wire can support the lens module 200.

[0071] The camera module also includes a circuit board 700, such as Figure 1 and Figure 3 As shown, the circuit board 700 is mounted on the base 100, with its central portion connected to the bottom of the lens module 200. The circuit board 700 is connected to the bottom of the lens module 200 and can receive image signals captured by the lens module 200. A socket is provided in the portion of the circuit board 700 connected to the base 100, which can be plugged into the motherboard of a mobile terminal such as a mobile phone to convert the image signal into an electrical signal for transmission.

[0072] The camera module according to the embodiment of the present invention can achieve at least the following beneficial effects by being configured in this way: by arranging memory alloy wires on all sides of the lens module 200, the resultant torque generated by the electrical contraction of the memory alloy wires causes the lens module 200 to rotate relative to the base 100, so that the lens module 200 rotates at a larger angle and at a faster speed, and the lens module 200 can be quickly adjusted to a desired position, so that the lens module 200 can clearly capture images, and the camera module achieves good imaging performance.

[0073] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0074] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that: include: base; A lens module, wherein the lens module is used to capture images; A driving device is provided on a side of the lens module, and includes a plurality of memory alloy wires connected to the middle portion of the side of the lens module and extending to both sides to connect to the base; the combined torque generated by the contraction of the plurality of memory alloy wires upon powering on drives the lens module to rotate relative to the base; The lens module further comprises a top ball, the top ball being located in the middle of the bottom surface of the lens module, the lens module being in contact with the base via the top ball and being rotated relative to the base with the top ball as a support point; The lens module further comprises a first electrical terminal and a second electrical terminal, wherein the first electrical terminal is disposed in the middle of a side surface of the lens module, and the second electrical terminal is disposed on the base, and the positions of the second electrical terminals correspond to the positions of two corners of the side surface of the lens module; the memory alloy wire is connected to the lens module and the base via the first electrical terminal and the second electrical terminal; The memory alloy wire includes a first memory alloy wire and a second memory alloy wire arranged horizontally; one end of the first memory alloy wire is connected to the top of the first electrical terminal, and the other end is connected to the second electrical terminal on one side of the base; one end of the second memory alloy wire is connected to the bottom of the first electrical terminal, and the other end is connected to the second electrical terminal on the other side of the base; or, The memory alloy wire includes a third memory alloy wire and a fourth memory alloy wire arranged horizontally, wherein the two ends of the third memory alloy wire and the fourth memory alloy wire are respectively connected to the second electrical terminal; the middle part of the third memory alloy wire is connected to the top of the first electrical terminal; and the middle part of the fourth memory alloy wire is connected to the bottom of the first electrical terminal.

2. The camera module according to claim 1, wherein: It also includes a first metal plate and a second metal plate, wherein the first metal plate is arranged in the middle of the side of the lens module and protrudes downward, and the second metal plate is arranged on the base, and the position of the second metal plate corresponds to the position of the two corners of the side of the lens module; The memory alloy wire is arranged obliquely, with one end connected to the bottom of the first metal plate and the other end connected to the second metal plate.

3. The camera module according to claim 2, wherein: The memory alloy wires include a fifth memory alloy wire and a sixth memory alloy wire. The fifth memory alloy wire and the sixth memory alloy wire are symmetrically arranged on both sides of the first metal plate with respect to the first metal plate.

4. The camera module according to claim 2, wherein: It also includes a turning part, which is arranged on the base and corresponds to the positions of the two side corners of the lens module. One end of the memory alloy wire is connected to the first metal plate, and the other end passes around the turning part on one side of the base and is connected to the second metal plate on the other side of the base.

5. The camera module according to any one of claims 1 to 4, characterized in that: It also includes an upper spring plate, which is located on the top of the lens module and is connected to the lens module and the base.

6. The camera module according to any one of claims 1 to 4, characterized in that: It also includes a circuit board, which is arranged on the base and connected to the bottom of the lens module.

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