lens module

Abstract

The present application discloses a lens module, which includes a lens assembly, an image sensor, a movable plate, and a drive assembly. The image sensor is located at the bottom of the lens assembly and is used to receive image signals transmitted by the lens assembly. The movable plate is connected to the image sensor and is used to drive the image sensor to move. The drive assembly includes a memory alloy wire, a connecting rod, and an elastic member. The elastic member is fixed at one end and connected to one end of the connecting rod at the other end. The memory alloy wire is fixed at one end and connected to the other end of the connecting rod. The end of the connecting rod connected to the memory alloy wire is provided with an abutment, which abuts against the movable plate. The drive assembly drives the connecting rod to rotate around the elastic member by energizing and contracting the memory alloy wire, so that the abutment drives the movable plate to move. Through such a configuration, the lens module has a simple structure and occupies little space, which is conducive to the miniaturization of the camera device.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to a lens module. Background Art

[0002] With the rapid development of multimedia technology, digital cameras, camcorders, tablet computers, and mobile phones with cameras are becoming increasingly popular among consumers. Lens modules are an indispensable component in these devices. A camera module typically consists of a lens barrel, a lens mount, a lens, and an image sensor. The lens is housed in the lens barrel, and the image sensor is mounted in the lens mount.

[0003] Existing anti-shake lens modules utilize a drive motor or voice coil motor to displace the lens barrel or lens mount, thereby changing the distance between the lens barrel and lens mount to achieve focusing or anti-shake. However, these lens modules are not only costly but also bulky and complex in structure, failing to meet the demand for thin, lightweight, and compact camera modules. Therefore, there is a need for a low-cost, simple, and compact lens module. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a lens module, which has a simple structure and occupies a small space, which is conducive to the miniaturization of the camera equipment.

[0005] According to the embodiment of the present application, the lens module includes a lens assembly, an image sensor, a movable plate and a driving assembly, wherein the image sensor is located at the bottom of the lens assembly, and the image sensor is used to receive the image signal transmitted by the lens assembly; the movable plate is connected to the image sensor, and the movable plate is used to drive the image sensor to move; the driving assembly includes a memory alloy wire, a connecting rod and an elastic member, one end of the elastic member is fixed, and the other end is connected to one end of the connecting rod; one end of the memory alloy wire is fixed, and the other end is connected to the other end of the connecting rod; the end of the connecting rod connected to the memory alloy wire is provided with an abutment portion, and the abutment portion abuts against the movable plate; the driving assembly drives the connecting rod to rotate around the elastic member by energizing and contracting the memory alloy wire, so that the abutment portion drives the movable plate to move.

[0006] According to the lens module of the embodiment of the present application, by adopting such a configuration, at least the following beneficial effects can be achieved: the image sensor is located below the lens assembly, the movable plate is connected to the image sensor, and the movable plate is driven by the drive assembly to move, thereby driving the image sensor to move, thereby adjusting the positional relationship between the image sensor and the lens assembly, thereby achieving focusing or anti-shake. Focusing or anti-shake is achieved by adjusting the image sensor rather than the lens assembly. Because the image sensor is small and lightweight, the driving force required for the lens module is smaller, the size of the drive assembly can also be reduced, and driving is more convenient. At the same time, the small size of the image sensor means that the lens module reserves less space for the image sensor to move. The drive assembly includes an elastic member, a connecting rod, and a memory alloy wire. When the memory alloy wire is energized and retracted, it pulls the connecting rod to rotate around the elastic member, causing the abutment portion to drive the movable plate to move, thereby adjusting the positional relationship between the image sensor and the lens assembly, achieving the technical effect of focusing or anti-shake. The drive assembly is small and does not take up too much space. The travel of the movable plate is greater than the degree of contraction of the memory alloy wire, which can amplify the travel of the memory alloy wire.

[0007] According to some embodiments of the present application, a side edge of the movable plate is provided with a bent portion, and the abutting portion of the connecting rod abuts against the bent portion.

[0008] According to some embodiments of the present application, four groups of the driving assemblies are provided, the four sides of the movable plate are provided with the bending portions, and each of the bending portions abuts against the connecting rod of a group of the driving assemblies.

[0009] According to some embodiments of the present application, the four bending portions are respectively arranged at two diagonally opposite corners of the movable plate, and two bending portions are arranged at each of the two diagonally opposite corners.

[0010] According to some embodiments of the present application, a mounting plate is further included, which is arranged at the bottom of the lens assembly and connected to the lens assembly, and the driving assembly is arranged on the bottom surface of the mounting plate; one end of the elastic member is fixedly connected to the mounting plate, and the other end is connected to one end of the connecting rod; one end of the memory alloy wire is fixedly connected to the mounting plate, and the other end is connected to the other end of the connecting rod.

[0011] According to some embodiments of the present application, a plane bearing is provided on the bottom surface of the mounting plate, the top surface of the movable plate is in contact with the mounting plate through the plane bearing, and the driving assembly is provided between the mounting plate and the movable plate.

[0012] According to some embodiments of the present application, a magnet is provided on the mounting plate, the movable plate is made of a soft magnetic material, and the mounting plate and the movable plate abut against each other through magnetic force.

[0013] According to some embodiments of the present application, the elastic part includes a fixed surface, an elastic bending surface and a connecting surface, the fixed surface is fixedly set, the connecting surface is attached to one end of the connecting rod, the elastic bending surface connects the fixed surface and the connecting surface, and the elastic bending surface is set toward the memory alloy wire.

[0014] According to some embodiments of the present application, a flexible circuit board is further included. The flexible circuit board is arranged around the side of the lens assembly and is used to connect the image sensor and the main board of the camera device.

[0015] According to some embodiments of the present application, the flexible circuit board includes a first flexible circuit board and a second flexible circuit board, two opposite sides of the image sensor are respectively provided with a first connection port and a second connection port, a third connection port is provided on the mounting plate, the third connection port is electrically connected to the driving assembly, a fourth connection port is provided on the lens assembly, the fourth connection port is electrically connected to the focusing module inside the lens assembly, the third connection port and the fourth connection port respectively correspond to the other two opposite sides of the image sensor, the first flexible circuit board is connected to the first connection port and the third connection port, and the second flexible circuit board is connected to the second connection port and the fourth connection port.

[0016] According to some embodiments of the present application, the first flexible circuit board includes a first body and a first connecting portion, the first body is arranged around two adjacent side surfaces of the lens assembly, the first body connects the first connection port and the third connection port, and the first connecting portion is arranged on a side of the first body used to connect to the third connection port; the second flexible circuit board includes a second body and a second connecting portion, the second body is arranged around the other two adjacent side surfaces of the lens assembly, the second body connects the second connection port and the fourth connection port, and the second connecting portion is arranged on a side of the second body used to connect to the fourth connection port; the first connecting portion and the second connecting portion are used to connect to the mainboard of the camera device.

[0017] According to some embodiments of the present application, the first flexible circuit board includes a first body and a first connecting portion, the first body is arranged along the direction of two adjacent side surfaces of the lens assembly, the first body connects the first connection port and the third connection port, and the first connecting portion is arranged on a side of the first body used to connect to the third connection port; the second flexible circuit board includes a second body and a second connecting portion, the second body is arranged along the direction of four side surfaces of the lens assembly, the second body connects the second connection port and the fourth connection port, and the second connecting portion is arranged on a side of the second body corresponding to the third connection port; the first connecting portion and the second connecting portion are used to connect to the mainboard of the camera device.

[0018] According to some embodiments of the present application, the side of the movable plate is bent to form a fitting surface, the fitting surface is fitted on the outer side wall of the image sensor, and the bottom of the flexible circuit board is fixedly connected to the fitting surface.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 2 is a schematic diagram of the lens module housing installation structure according to an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the installation structure of the flexible circuit board and the lens assembly according to an embodiment of the present application;

[0023] Figure 3 is a schematic diagram of the exploded structure of a lens module according to an embodiment of the present application;

[0024] Figure 4 is a schematic structural diagram of a mounting plate and a drive assembly according to an embodiment of the present application;

[0025] Figure 5 1 is a schematic structural diagram of a mounting plate, a drive assembly, and a movable plate according to an embodiment of the present application;

[0026] Figure 6 is a schematic structural diagram of a drive assembly according to an embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the configuration of a flexible circuit board according to one embodiment of the present application;

[0028] Figure 8 for Figure 7 A schematic diagram showing another perspective of the flexible circuit board arrangement;

[0029] Figure 9 This is a schematic diagram of a flexible circuit board arrangement according to another embodiment of the present application;

[0030] Figure 10 for Figure 9 A schematic diagram showing another perspective of the flexible circuit board arrangement.

[0031] Reference numerals:

[0032] Lens assembly 100, fourth connection port 110, image sensor 200, first connection port 210, second connection port 220, movable plate 300, bent portion 310, fitting surface 320, memory alloy wire 410, connecting rod 420, abutting portion 421, elastic member 430, fixing surface 431, elastic bent surface 432, connecting surface 433, mounting plate 500, plane bearing 510, magnet 520, third connection port 530, flexible printed circuit board 600, first flexible printed circuit board 600a, second flexible printed circuit board 600b, first surface 610, second surface 620, third surface 630, fourth surface 640, fifth surface 650, sixth surface 660, first connecting portion 670, second connecting portion 680, and housing 700. DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present application. 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 only used to explain the present application and are not to be construed as limiting the present application.

[0034] In the description of this application, 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 application 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 this application.

[0035] In the description of this application, "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 terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0036] In the description of this application, 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 this application based on the specific content of the technical solution.

[0037] Reference below Figures 1 to 10 To describe the lens module according to an embodiment of the present application.

[0038] According to the embodiment of the present application, the lens module includes a lens assembly 100, an image sensor 200, a movable plate 300 and a driving assembly, the image sensor 200 is located at the bottom of the lens assembly 100, and the image sensor 200 is used to receive the image signal transmitted by the lens assembly 100; the movable plate 300 is connected to the image sensor 200, and the movable plate 300 is used to drive the image sensor 200 to move; the driving assembly includes a memory alloy wire 410, a connecting rod 420 and an elastic member 430, one end of the elastic member 430 is fixedly arranged, and the other end is connected to one end of the connecting rod 420; one end of the memory alloy wire 410 is fixedly arranged, and the other end is connected to the other end of the connecting rod 420; the end of the connecting rod 420 connected to the memory alloy wire 410 is provided with an abutment portion, and the abutment portion abuts with the movable plate 300; the driving assembly drives the connecting rod 420 to rotate around the elastic member 430 by energizing and contracting the memory alloy wire 410, so that the abutment portion drives the movable plate 300 to move.

[0039] For example Figure 3 and Figure 5 As shown, the lens module includes a lens assembly 100, an image sensor 200, a movable plate 300 and a driving assembly. The lens assembly 100 is provided with a lens and a focusing module. The lens is used to collect images, and the focusing module can drive the lens module to move in the axial direction to achieve lens focusing. The image sensor 200 is arranged at the bottom of the lens assembly 100 and can receive the image signal transmitted by the lens assembly 100. The movable plate 300 is connected to the image sensor 200 and drives the image sensor 200 to start together. The driving assembly is used to drive the movable plate 300 to move. The movement of the movable plate 300 drives the image sensor 200 to move together, thereby changing the positional relationship between the image sensor 200 and the lens assembly 100, and achieving the technical effect of lens anti-shake.

[0040] Focusing or anti-shake is achieved by adjusting the image sensor 200 instead of the lens assembly 100. Because the image sensor 200 is small and lightweight, the lens module requires less driving force, the drive assembly can also be reduced in size, and driving is more convenient. Furthermore, the smaller size of the image sensor 200 means that the lens module has less space for the image sensor 200 to move.

[0041] The drive assembly includes an elastic member 430, a connecting rod 420, and a memory alloy wire 410. The elastic member 430 is fixed at one end and connected to one end of the connecting rod 420 at the other end. The memory alloy wire 410 is fixed at one end and connected to the other end of the connecting rod 420 at the other end. The connecting rod 420 has an abutment at the end connected to the memory alloy wire 410, which abuts against the movable plate 300. When the memory alloy wire 410 is energized and contracts, it pulls the end of the connecting rod 420 with the abutment to rotate around the elastic member 430. The movement of the abutment drives the movable plate 300, thereby causing the image sensor 200 to move along with it, achieving the anti-shake effect.

[0042] The memory alloy wire 410 drives the movable plate 300 to move, thereby adjusting the positional relationship between the image sensor 200 and the lens assembly 100 to achieve focusing or anti-shake effects. The drive assembly is compact and does not take up much space. Furthermore, the travel of the movable plate 300 is greater than the degree of contraction of the memory alloy wire 410, thereby amplifying the travel of the memory alloy wire 410.

[0043] In some specific embodiments of the present application, a bending portion 310 is provided on a side of the movable plate 300 , and the abutting portion of the connecting rod 420 abuts against the bending portion 310 .

[0044] For example Figure 3 and Figure 5 As shown, a bending portion 310 is provided on the side of the movable plate 300, and the bending portion 310 is perpendicular to the main body of the movable plate 300, so that the abutting portion can abut against the side wall of the bending portion 310. When the abutting portion moves, it can push the bending portion 310 to move. The movement of the bending portion 310 drives the movable plate 300 and the image sensor 200 to move, thereby achieving the purpose of driving the movable plate 300 to move.

[0045] Furthermore, the abutment portion is made of a wear-resistant material, resulting in less wear and a longer service life. Furthermore, the surface of the abutment portion that abuts the bent portion 310 is provided with an arc-shaped protrusion. The arc-shaped protrusion abuts the bent portion 310, which reduces friction and wear during relative motion between the abutment portion and the bent portion 310, thereby increasing service life.

[0046] In some specific embodiments of the present application, four groups of driving assemblies are provided, and four sides of the movable plate 300 are provided with bending portions 310 , and each bending portion 310 abuts against a connecting rod 420 of a group of driving assemblies.

[0047] For example Figure 3 and Figure 5As shown, four groups of drive assemblies are provided, and the four sides of the movable plate 300 are provided with bent portions 310, each bent portion 310 abutting against a connecting rod 420 of a group of drive assemblies. When the image sensor 200 needs to move in a certain direction, the memory alloy wire 410 of the drive assembly in that direction is energized and contracted, while the memory alloy wire 410 of the drive assembly opposite to that memory alloy wire 410 relaxes, allowing the drive assembly to drive the movable plate 300 to move in that direction. At the same time, the abutting portions of the drive assemblies on both sides abut against the bent portions 310, maintaining balance and allowing the movable plate 300 to move horizontally without deflection, thereby ensuring accuracy.

[0048] By providing bending portions 310 on all four sides of the movable plate 300, and each bending portion 310 is provided with a set of driving components for driving, the movable plate 300 has freedom in four directions and can move in the X-axis direction and the Y-axis direction. The range of movement is larger, which facilitates the position adjustment between the image sensor 200 and the lens assembly 100.

[0049] In some specific embodiments of the present application, the four bending portions 310 are respectively provided at two diagonally opposite corners of the movable plate 300 , and two bending portions 310 are provided at each of the two diagonally opposite corners.

[0050] For example Figure 3 and Figure 5 As shown, four bending portions 310 are respectively arranged at two diagonally opposite corners of the movable plate 300, and two bending portions 310 are arranged at each diagonally opposite corner. Being arranged at the corners allows the drive assembly to drive the movable plate 300 to rotate clockwise or counterclockwise, so that the lens module can achieve rotational anti-shake. When the movable plate 300 needs to rotate, the two groups of memory alloy wires 410 arranged at intervals contract simultaneously to drive the movable plate 300 to rotate, achieving rotational anti-shake. Moreover, since the four bending portions 310 are arranged at two diagonally opposite corners of the movable plate 300, the driving directions of the bending portions 310 at each diagonally opposite corner are opposite, so that the drive assembly can drive the movable plate 300 to rotate clockwise or counterclockwise.

[0051] In some specific embodiments of the present application, a mounting plate 500 is further included, which is arranged at the bottom of the lens assembly 100 and connected to the lens assembly 100, and the driving assembly is arranged on the bottom surface of the mounting plate 500; one end of the elastic member 430 is fixedly connected to the mounting plate 500, and the other end is connected to one end of the connecting rod 420; one end of the memory alloy wire 410 is fixedly connected to the mounting plate 500, and the other end is connected to the other end of the connecting rod 420.

[0052] For example Figure 4As shown, the lens module further includes a mounting plate 500, which is disposed at the bottom of the lens assembly 100 and connected to the lens assembly 100. The drive assembly is disposed on the bottom surface of the mounting plate 500. One end of the elastic member 430 is fixedly connected to the mounting plate 500, and the other end is connected to one end of the connecting rod 420. One end of the memory alloy wire 410 is fixedly connected to the mounting plate 500, and the other end is fixedly connected to the other end of the connecting rod 420. When the memory alloy wire 410 is energized and contracted, it pulls the connecting rod 420 to rotate around the elastic member 430, causing the end of the connecting rod 420 provided with the abutting portion to rotate, thereby pushing the movable plate 300 to move.

[0053] By providing the mounting plate 500 , the position of the driving assembly can be fixed, thereby maintaining stability and driving accuracy.

[0054] In some specific embodiments of the present application, a plane bearing 510 is provided on the bottom surface of the mounting plate 500 , the top surface of the movable plate 300 is in contact with the mounting plate 500 through the plane bearing 510 , and the driving assembly is provided between the mounting plate 500 and the movable plate 300 .

[0055] For example Figure 4 As shown, a plane bearing 510 is provided on the bottom surface of the mounting plate 500. The top surface of the movable plate 300 abuts the mounting plate 500 via the plane bearing 510. The drive assembly is disposed between the mounting plate 500 and the movable plate 300. The abutment of the movable plate 300 and the mounting plate 500 facilitates the drive assembly to drive the movable plate 300. The plane bearing 510 is disposed between the mounting plate 500 and the movable plate 300. When the movable plate 300 moves relative to the mounting plate 500, the provision of the plane bearing 510 causes the relative movement between the movable plate 300 and the mounting plate 500 to be sliding. Static friction is converted to kinetic friction, reducing friction and minimizing wear on the movable plate 300.

[0056] In some specific embodiments of the present application, a magnet 520 is provided on the mounting plate 500 , the movable plate 300 is made of a soft magnetic material, and the mounting plate 500 and the movable plate 300 abut against each other through magnetic force.

[0057] For example Figure 4 As shown, a magnet 520 is provided on the mounting plate 500, and the movable plate 300 is made of soft magnetic material. The magnet 520 has an attraction to the soft magnetic material, so that the movable plate 300 and the mounting plate 500 are abutted against each other by the attraction force of the magnet 520 on the soft magnetic material.

[0058] The mounting plate 500 and the movable plate 300 are abutted against each other through magnetic force and the plane bearing 510. The driving assembly is arranged between the mounting plate 500 and the movable plate 300, which saves volume and has a compact structure, facilitating the miniaturization of the lens module.

[0059] In some specific embodiments of the present application, the elastic member 430 includes a fixed surface 431, an elastic bending surface 432 and a connecting surface 433, the fixed surface 431 is attached to the mounting plate 500, the connecting surface 433 is attached to one end of the connecting rod 420, the elastic bending surface 432 connects the fixed surface 431 and the connecting surface 433, and the elastic bending surface 432 is set toward the memory alloy wire 410.

[0060] For example Figure 6 As shown, the elastic member 430 includes a fixed surface 431, an elastic bending surface 432 and a connecting surface 433. The fixed surface 431 is attached to the mounting plate 500, the connecting surface 433 is attached to one end of the connecting rod 420, the elastic bending surface 432 connects the fixed surface 431 and the connecting surface 433, and the elastic bending surface 432 is set toward the memory alloy wire 410.

[0061] When the memory alloy wire 410 contracts when energized, it pulls the connecting rod 420 to rotate. At this time, the elastic bending surface 432 bends, allowing the connecting rod 420 to rotate around the elastic member 430. When the force of the memory alloy wire 410 disappears, the elastic member 430 can be reset by the force of the elastic bending surface 432.

[0062] In some specific embodiments of the present application, for example Figure 2 As shown, the lens module also includes a flexible circuit board 600, which is arranged along the side of the lens assembly 100 and around the lens assembly 100. The flexible circuit board 600 is used to connect the image sensor 200 and the main board of the camera device. By placing the flexible circuit board 600 around the side of the lens assembly 100, space can be reduced. In addition, the flexible circuit board 600 connects the image sensor 200 and the main board of the camera device. The image sensor 200 receives the image signal transmitted by the lens assembly 100 and converts the image signal into an electrical signal. The flexible circuit board 600 transmits the electrical signal to the main board of the camera device, so that the image collected by the lens assembly 100 can be displayed on the screen of the camera device.

[0063] Reference Figures 7 to 10In some specific embodiments of the present application, the flexible circuit board 600 includes a first flexible circuit board 600a and a second flexible circuit board 600b; two opposite sides of the image sensor 200 are respectively provided with a first connection port 210 and a second connection port 220, and the four sides of the image sensor 200 are parallel to the four sides of the lens assembly 100; the mounting plate 500 is provided with a third connection port 530, and the third connection port 530 is electrically connected to the driving assembly, so that the supply of each memory alloy wire 410 in the driving assembly can be realized through the third connection port 530. Power and control; the lens assembly 100 is provided with a fourth connection port 110, and the fourth connection port 110 is electrically connected to the focus module inside the lens assembly 100, so that the focus module can be powered and controlled through the fourth connection port 110; the third connection port 530 and the fourth connection port 110 respectively correspond to the other two opposite sides of the image sensor 200, the first flexible circuit board 600a is connected to the first connection port 210 and the third connection port 530, and the second flexible circuit board 600b is connected to the second connection port 220 and the fourth connection port 110. Therefore, through the first flexible circuit board 600a and the first connection port 210 and the third connection port 530, one side of the image sensor 200 and the driving component can be electrically connected to the mainboard of the camera device at the same time; and through the second flexible circuit board 600b and the second connection port 220 and the fourth connection port 110, the other side of the image sensor 200 and the focus module can be electrically connected to the mainboard of the camera device at the same time. Therefore, with the help of the first flexible circuit board 600a and the second flexible circuit board 600b, the image sensor 200 and the driving component that need to be powered on in the lens module can be electrically connected to the mainboard of the camera device at the same time. Furthermore, since the third connection port 530 is fixed relative to the mounting plate 500, while the first connection port 210 is movable relative to the mounting plate 500, the flexibility of the first flexible circuit board 600a can prevent the normal movement of the image sensor 200 under the drive of the driving component from being affected. Similarly, since the fourth connection port 110 is fixed relative to the mounting plate 500, while the second connection port 220 is movable relative to the mounting plate 500, the flexibility of the second flexible circuit board 600b can also prevent the normal movement of the image sensor 200 under the drive of the driving component from being affected.

[0064] Reference Figure 7 and Figure 8Furthermore, in one embodiment, the first flexible circuit board 600a includes a first body and a first connecting portion 670, the first body is arranged around two adjacent side surfaces of the lens assembly 100, the first body connects the first connection port 210 and the third connection port 530, and the first connecting portion 670 is arranged on a side of the first body for connecting to the third connection port 530.

[0065] Specifically, the first body includes a first surface 610 and a second surface 620, which correspond to different sides of the lens assembly 100, respectively. The bottom of the first surface 610 is provided with a connection structure for connecting to the first connection port 210, and the second surface 620 is provided with a connection structure for connecting to the third connection port 530, and the first connection portion 670 is provided at the bottom of the second surface 620. Since the first body is provided along two adjacent surfaces of the lens assembly 100, and the first body is connected to the first connection port 210 and the third connection port 530 through different surfaces, The surface connected to the third connection port 530 (i.e., the second surface 620) is connected to the third connection port 530 at a fixed position of the first body, while the surface connected to the first connection port 210 (i.e., the first surface 610) is connected to the first connection port 210 at a movable end of the first body. Therefore, the fold line between the first surface 610 and the second surface 620 allows the first surface 610 and the second surface 620 to swing relative to each other, thereby increasing the flexibility of the first flexible circuit board 600a and further preventing the first flexible circuit board 600a from affecting the movement of the image sensor 200.

[0066] Reference Figure 7 and Figure 8 In this embodiment, the second flexible circuit board 600b also includes a second body and a second connecting portion 680. The second body is arranged around the other two adjacent sides of the lens assembly 100. The second body connects the second connection port 220 and the fourth connection port 110. The second connecting portion 680 is arranged on a side of the second body used for connecting to the fourth connection port 110; the first connecting portion 670 and the second connecting portion 680 are used to connect to the mainboard of the camera device.

[0067] Specifically, the second body includes a fifth surface 650 and a sixth surface 660, which correspond to different sides of the lens assembly 100, respectively. The bottom of the fifth surface 650 is provided with a connection structure for connecting to the second connection port 220, the sixth surface 660 is provided with a connection structure for connecting to the fourth connection port 110, and the second connection portion 680 is provided at the bottom of the sixth surface 660; similarly, with the help of the fold line between the fifth surface 650 and the sixth surface 660, the flexibility of the second flexible circuit board 600b can also be improved.

[0068] Reference Figure 9 and Figure 10 In order to enable the first connection portion 670 and the second connection portion 680 to be arranged on the same side, in some other embodiments, the first flexible circuit board 600a includes a first body and a first connection portion 670, the first body being arranged around two adjacent side surfaces of the lens assembly 100, the first body connecting the first connection port 210 and the third connection port 530, and the first connection portion 670 being arranged on a side of the first body for connecting to the third connection port 530; the second flexible circuit board 600b includes a second body and a second connection portion 680, the second body being arranged around four side surfaces of the lens assembly 100, the second body connecting the second connection port 220 and the fourth connection port 110, and the second connection portion 680 being arranged on a side of the second body corresponding to the third connection port 530; the first connection portion 670 and the second connection portion 680 are used to connect to a mainboard of the imaging device.

[0069] In this embodiment, specifically, the structure of the first flexible circuit board 600a is the same as that of the previous embodiment, except that in the second flexible circuit board 600b, the second body includes four surfaces, namely a third surface 630, a fourth surface 640, a fifth surface 650 and a sixth surface 660, wherein the fourth surface 640 and the first surface 610 correspond to the same side surface of the lens assembly 100, the third surface 630 and the second surface 620 correspond to another same side surface of the lens assembly 100, and the fifth surface 650 and the sixth surface 660 correspond to the other two adjacent sides of the lens assembly 100. similarly, the bottom of the fifth surface 650 is provided with a connection structure for connecting to the second connection port 220, and the sixth surface 660 is provided with a connection structure for connecting to the fourth connection port 110. With the help of the fold line between the fifth surface 650 and the sixth surface 660, the flexibility of the second flexible circuit board 600b can be improved; and the second connection part 680 is provided at the bottom of the third surface 630, so that the first connection part 670 and the second connection part 680 can be located on the same side of the lens assembly 100 or even the lens module, thereby facilitating the electrical connection between the lens module and the mainboard of the camera device.

[0070] In some specific embodiments of the present application, the side of the movable plate 300 is bent to form a bonding surface 320 , which is bonded to the outer wall of the image sensor 200 , and the bottom of the flexible circuit board 600 is fixedly connected to the bonding surface 320 .

[0071] For example Figure 3 As shown, the side of the movable plate 300 is bent to form a fitting surface 320, which is fitted on the outer wall of the image sensor 200, and the fitting surfaces 320 are provided on both opposite side surfaces of the movable plate 300. The two fitting surfaces 320 sandwich the image sensor 200, making the connection between the movable plate 300 and the image sensor 200 more stable.

[0072] Reference Figure 2 and Figure 3 The bottom of the flexible circuit board 600 is fixedly connected to the bonding surface 320, and the bottom is connected to the first connection port 210 and the second connection port 220 of the image sensor 200. By providing the bonding surface 320 on the side of the movable plate 300, the installation of the flexible circuit board 600 can be facilitated, so that the flexible circuit board 600 can be installed more stably.

[0073] Furthermore, the lens module is further provided with a housing 700, for example Figure 1 As shown, the housing 600 encloses the lens assembly 100, the image sensor 200, the movable plate 300 and the driving assembly, etc., and plays a protective role.

[0074] Furthermore, in some embodiments, one side of the first connecting portion 670 and the second connecting portion 680 is extended to the outside of the housing 600, thereby making it easier to achieve electrical connection between the lens module and the mainboard of the camera device.

[0075] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0076] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A lens module, characterized in that: include: lens assembly; An image sensor, located at the bottom of the lens assembly, and configured to receive an image signal transmitted by the lens assembly; A movable plate, the movable plate being connected to the image sensor and used to drive the image sensor to move, wherein the four sides of the movable plate are provided with bent portions, the four bent portions being respectively provided at two diagonally opposite corners of the movable plate, and two bent portions being provided at each of the two diagonally opposite corners; The driving assembly is provided with four groups, and each driving assembly includes a memory alloy wire, a connecting rod and an elastic member, one end of the elastic member is fixed, and the other end is connected to one end of the connecting rod; one end of the memory alloy wire is fixed, and the other end is connected to the other end of the connecting rod; the end of the connecting rod connected to the memory alloy wire is provided with an abutment, and the abutment abuts with the movable plate; the driving assembly drives the connecting rod to rotate around the elastic member through the electrified contraction of the memory alloy wire so that the abutment drives the movable plate to move, and each bending portion of the movable plate abuts with the abutment portion of the connecting rod in a group of the driving assemblies, and the surface where the abutment portion of the connecting rod abuts with the bending portion is provided with an arc-shaped protrusion, and the abutment abuts with the bending portion through the arc-shaped protrusion.

2. The lens module according to claim 1, wherein: It also includes a mounting plate, which is arranged at the bottom of the lens assembly and connected to the lens assembly, and the driving assembly is arranged on the bottom surface of the mounting plate; one end of the elastic member is fixedly connected to the mounting plate, and the other end is connected to one end of the connecting rod; one end of the memory alloy wire is fixedly connected to the mounting plate, and the other end is connected to the other end of the connecting rod.

3. The lens module according to claim 2, wherein: The bottom surface of the mounting plate is provided with a plane bearing, the top surface of the movable plate is in contact with the mounting plate through the plane bearing, and the driving assembly is provided between the mounting plate and the movable plate.

4. The lens module according to claim 3, wherein: The mounting plate is provided with a magnet, the movable plate is made of a soft magnetic material, and the mounting plate and the movable plate abut against each other through magnetic force.

5. The lens module according to claim 1, wherein: The elastic member includes a fixed surface, an elastic bending surface and a connecting surface. The fixed surface is fixedly arranged, the connecting surface is attached to one end of the connecting rod, the elastic bending surface connects the fixed surface and the connecting surface, and the elastic bending surface is arranged toward the memory alloy wire.

6. The lens module according to claim 2, wherein: It also includes a flexible circuit board, which is arranged around the side of the lens assembly and is used to connect the image sensor and the main board of the camera device.

7. The lens module according to claim 6, wherein: The flexible circuit board includes a first flexible circuit board and a second flexible circuit board. Two opposite side surfaces of the image sensor are respectively provided with a first connection port and a second connection port. A third connection port is provided on the mounting plate, and the third connection port is electrically connected to the drive assembly. A fourth connection port is provided on the lens assembly, and the fourth connection port is electrically connected to the focus module inside the lens assembly. The third connection port and the fourth connection port respectively correspond to the other two opposite side surfaces of the image sensor. The first flexible circuit board is connected to the first connection port and the third connection port, and the second flexible circuit board is connected to the second connection port and the fourth connection port.

8. The lens module according to claim 7, wherein: The first flexible circuit board includes a first body and a first connecting portion, the first body is arranged around two adjacent side surfaces of the lens assembly, the first body is connected to the first connection port and the third connection port, and the first connecting portion is arranged on a side of the first body used to connect to the third connection port; the second flexible circuit board includes a second body and a second connecting portion, the second body is arranged around the other two adjacent side surfaces of the lens assembly, the second body is connected to the second connection port and the fourth connection port, and the second connecting portion is arranged on a side of the second body used to connect to the fourth connection port; the first connecting portion and the second connecting portion are used to connect to the mainboard of the camera device.

9. The lens module according to claim 7, wherein: The first flexible circuit board includes a first body and a first connecting portion, the first body is arranged along the direction of two adjacent side surfaces of the lens assembly, the first body is connected to the first connection port and the third connection port, and the first connecting portion is arranged on a side of the first body for connecting to the third connection port; the second flexible circuit board includes a second body and a second connecting portion, the second body is arranged along the direction of four side surfaces of the lens assembly, the second body is connected to the second connection port and the fourth connection port, and the second connecting portion is arranged on a side of the second body corresponding to the third connection port; the first connecting portion and the second connecting portion are used to connect to the mainboard of the camera device.

10. The lens module according to claim 6, wherein: The side of the movable plate is bent to form a fitting surface, the fitting surface is fitted on the outer side wall of the image sensor, and the bottom of the flexible circuit board is fixedly connected to the fitting surface.

Images