Lens driving device

Abstract

The utility model provides a kind of lens driving device, it includes shell, support frame, lens barrel support, elastic support and drive assembly;First drive assembly in drive assembly includes first focusing coil, first anti-shake coil and first magnetic steel;First focusing coil includes first long side, second long side, first connecting side and second connecting side, the interval distance of first long side and first anti-shake coil and the interval distance of second long side and first anti-shake coil are less than the stroke of first anti-shake coil movement;First connecting side includes first bending section, second bending section and first connecting section, the interval distance of first anti-shake coil and first connecting section is greater than the stroke of first anti-shake coil movement.The utility model lens driving device can reduce the interval distance between first anti-shake coil and first focusing coil, ensure that first anti-shake coil does not collide with first focusing coil when moving, thereby further reducing the size of lens driving device.

Description

Technical Field

[0001] This utility model belongs to the field of shooting equipment technology, and in particular relates to a lens driving device. Background Technology

[0002] With the improvement of living standards, digital cameras, digital camcorders, smartphones, tablets and other electronic devices with shooting functions have all been equipped with autofocus cameras. Autofocus cameras require a lens drive device to drive them in order to achieve automatic focusing and optical image stabilization.

[0003] The lens driving device mainly includes a housing, a support frame that is movably supported within the housing, a lens barrel bracket that is spaced apart from and elastically supported within the support frame, and a driving component for driving the lens module to move along its optical axis and along a direction perpendicular to the optical axis.

[0004] In related technologies, the driving components mainly include a magnet, a focusing coil spaced apart from the magnet along a direction perpendicular to the optical axis, and an image stabilization coil spaced apart from the magnet along the optical axis. The magnet and the focusing coil together drive the lens barrel support to move the lens module relative to the support frame along the optical axis to achieve autofocus. The magnet and the image stabilization coil together drive the support frame to move the lens barrel support and the lens module relative to the housing along a direction perpendicular to the optical axis to achieve optical image stabilization.

[0005] While the aforementioned lens drive device can drive the lens module to achieve autofocus and optical image stabilization, in order to ensure the driving force required for autofocus, the overall length of the focusing coil needs to be greater than the length of the image stabilization coil. In addition, to prevent the image stabilization coil from colliding with the focusing coil during image stabilization, it is also necessary to ensure that there is sufficient travel space between the image stabilization coil and the focusing coil for image stabilization. That is, the distance required for the image stabilization coil to move closer to the focusing coil when it moves relative to the housing in a direction perpendicular to the optical axis. Since the distance between the focusing coil and the image stabilization coil is fixed, the lens drive device cannot be further reduced in size, limiting its application in small electronic devices. Utility Model Content

[0006] This utility model provides a lens driving device, which aims to solve the problem that in related technologies, in order to ensure that there is enough travel space between the image stabilization coil and the focusing coil for image stabilization movement, the lens driving device cannot be further reduced in size, thus limiting its application in small electronic devices.

[0007] In a first aspect, this utility model provides a lens driving device, which includes:

[0008] The outer casing includes a base, a top cover disposed on the base, and a central hole extending from the base to the top cover;

[0009] A support frame, wherein the support frame is a ring-shaped structure with a receiving space, and the support frame is movably supported on the base;

[0010] A lens barrel bracket, which is housed within the receiving space and spaced apart from the support frame, is used to mount a lens module;

[0011] An elastic support member that elastically suspends the lens barrel support within the receiving space; and...

[0012] A drive assembly for driving the lens barrel support to move;

[0013] The driving assembly includes a first driving assembly, which includes a first focusing coil fixed to the outer periphery of the lens barrel support, a first image stabilization coil fixed to the housing, and a first magnet fixed to the support frame, or a first magnet fixed to the housing and a first image stabilization coil fixed to the support frame; the first image stabilization coil and the first magnet are arranged opposite each other at intervals along the optical axis of the lens barrel support.

[0014] The first focusing coil includes a first long side and a second long side arranged at intervals along the optical axis of the lens barrel support and perpendicular to the optical axis, a first connecting side connecting the first long side and the second long side and extending towards the lens barrel support by bending, and a second connecting side connecting the first long side and the second long side; the first long side, the first connecting side, the second long side, and the second connecting side are sequentially connected and together form a first hollow region; the first focusing coil and the first magnet are opposite to each other and spaced apart along the radial direction of the lens barrel support;

[0015] The first image stabilization coil and the first magnet are positioned opposite each other along the optical axis of the lens barrel support. The length of the first image stabilization coil along the extension direction of the first long side is greater than the length of the first focusing coil. The first image stabilization coil is directly opposite the first hollow region and can move into the first hollow region. The distance between the first long side and the first image stabilization coil along the direction perpendicular to the optical axis, and the distance between the second long side and the first image stabilization coil along the direction perpendicular to the optical axis, are both less than the travel distance of the first image stabilization coil relative to the lens barrel support.

[0016] The first connecting edge includes a first bent segment connecting the first long side, a second bent segment connecting the second long side, and a first connecting segment connecting the first bent segment and the second bent segment respectively; the distance between the first image stabilization coil and the first connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the first image stabilization coil relative to the lens barrel support.

[0017] Preferably, the second connecting edge includes a third bent segment that connects to the first long side and bends towards the lens barrel support, a fourth bent segment that connects to the second long side and bends towards the lens barrel support, and a second connecting segment that connects the third bent segment and the fourth bent segment respectively; the distance between the first image stabilization coil and the second connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the first image stabilization coil relative to the lens barrel support.

[0018] Preferably, the lens barrel support has a first clearance groove recessed in a direction away from the first image stabilization coil in the area between the first long side and the second long side; the first hollow area is connected to the first clearance groove and together form the travel space of the first image stabilization coil.

[0019] Preferably, the lens barrel support has two first clearance grooves recessed in the areas corresponding to the first connecting edge and the second connecting edge, respectively; the two first clearance grooves are respectively connected to the two ends of the first clearance groove, and the first connecting edge and the second connecting edge are respectively received in the corresponding first clearance groove.

[0020] Preferably, the lens driving device further includes a second driving component, which is arranged circumferentially with the first driving component along the lens barrel support; the second driving component includes a second image stabilization coil and a second magnet spaced apart from the second image stabilization coil along the optical axis; the second magnet is fixed to the support frame, the second image stabilization coil is fixed to the housing, the first image stabilization coil drives the lens barrel support to move along a first direction, and the second image stabilization coil drives the lens barrel support to move along a second direction, both the first direction and the second direction being perpendicular to the optical axis;

[0021] Alternatively, the second magnet is fixed to the outer casing, and the second image stabilization coil is fixed to the support frame; the first magnet drives the lens barrel bracket to move along a first direction, and the second magnet drives the lens barrel bracket to move along a second direction, both of which are perpendicular to the optical axis.

[0022] Preferably, the second driving component further includes a second focusing coil fixed to the outer periphery of the lens barrel support, the first focusing coil and the lens barrel support are arranged along the first direction and fixed to the lens barrel support, the second focusing coil and the lens barrel support are arranged along the second direction and fixed to the lens barrel support, and the first focusing coil and the second focusing coil are spaced apart from each other;

[0023] The second focusing coil includes a third long side and a fourth long side arranged at intervals along the optical axis of the lens barrel support and perpendicular to the optical axis; a third connecting side connecting the third long side and the fourth long side and extending and bending towards the lens barrel support; and a fourth connecting side connecting the third long side and the fourth long side. The third long side, the third connecting side, the fourth long side, and the fourth connecting side are sequentially connected and together form a second hollow region. The second focusing coil and the second magnet are arranged opposite to each other and at intervals along the radial direction of the lens barrel support.

[0024] The length of the second image stabilization coil along the extension direction of the third long side is greater than the length of the second focusing coil. The second image stabilization coil is directly facing the second hollow region and can be moved into the second hollow region. The distance between the third long side and the second image stabilization coil along the direction perpendicular to the optical axis and the distance between the fourth long side and the second image stabilization coil along the direction perpendicular to the optical axis are both less than the travel distance of the second image stabilization coil relative to the lens barrel support.

[0025] The third connecting edge includes a fifth bent segment connecting the third long side, a sixth bent segment connecting the fourth long side, and a third connecting segment connecting the fifth bent segment and the sixth bent segment respectively; the distance between the second image stabilization coil and the third connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the second image stabilization coil relative to the lens barrel support.

[0026] Preferably, the fourth connecting edge includes a seventh bent segment that connects to the third long side and bends towards the lens barrel support, an eighth bent segment that connects to the fourth long side and bends towards the lens barrel support, and a fourth connecting segment that connects the seventh bent segment and the eighth bent segment respectively; the distance between the second image stabilization coil and the fourth connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the second image stabilization coil relative to the lens barrel support.

[0027] Preferably, the elastic support is electrically connected to the first focusing coil and the second focusing coil respectively; the lens driving device further includes a flexible circuit board, a spring, and a suspension wire;

[0028] The flexible circuit board is attached and fixed to the side of the support frame away from the base and forms a fixed electrical connection with the elastic support.

[0029] The spring clip is fixed to the side of the support frame away from the base and forms an electrical connection with the flexible circuit board;

[0030] One end of the suspension wire is fixed to the spring and forms an electrical connection with the spring, and the other end of the suspension wire is fixed to the base. The suspension wire is spaced apart from the support frame.

[0031] Preferably, the support frame is rectangular; the elastic support includes two members and is spaced apart around the lens barrel bracket; the spring pieces and the suspension wires each include four members, the four spring pieces are respectively located at the four corners of the support frame, and the four suspension wires are respectively fixed to the four spring pieces.

[0032] Preferably, each of the elastic supports includes a first fixed arm fixed to the side of the lens barrel bracket away from the base, two second fixed arms fixed to the support frame away from the base and spaced apart from each other, and two elastic arms that bend and extend from both ends of the first fixed arm toward the two second fixed arms and are fixedly connected to the second fixed arms. At least one of the second fixed arms is fixed to the side of the flexible circuit board away from the support frame and is electrically connected to the flexible circuit board. The first fixed arms of the two elastic supports are electrically connected to the first focusing coil and the second focusing coil, respectively.

[0033] Each of the spring pieces includes a first connecting portion fixed to the side of the support frame away from the base, a second connecting portion fixedly connected to the corresponding suspension wire, and two elastic portions extending from both ends of the first connecting portion toward the second connecting portion and fixedly connected to the second connecting portion. The second connecting portion is electrically connected to the corresponding suspension wire, and both the second connecting portion and the elastic portions are suspended. The first connecting portions of three of the spring pieces are fixedly electrically connected to the flexible circuit board, and the first connecting portion of the other spring piece is integrally connected to one of the second fixing arms of the corresponding elastic support member and forms an electrical connection.

[0034] Secondly, this utility model provides a lens driving device, which includes:

[0035] The outer casing includes a base, a top cover disposed on the base, and a central hole extending from the base to the top cover;

[0036] A support frame, wherein the support frame is a rectangular ring structure with a receiving space, and the support frame is movably supported on the base;

[0037] A lens barrel bracket, which is housed within the receiving space and spaced apart from the support frame, is circular and is used to mount a lens module;

[0038] An elastic support member that elastically suspends the lens barrel support within the receiving space; and...

[0039] A drive assembly for driving the lens barrel support to move;

[0040] The driving assembly includes a focusing coil, a first driving assembly, and a second driving assembly. The focusing coil is fixed to the outer periphery of the lens barrel support. The first driving assembly and the second driving assembly are respectively disposed on two adjacent sides of the support frame.

[0041] The first driving assembly includes a first anti-shake coil fixed to the housing and a first magnet fixed to the support frame, or a first magnet fixed to the housing and a first anti-shake coil fixed to the support frame; the second driving assembly includes a second anti-shake coil fixed to the housing and a second magnet fixed to the support frame, or a second magnet fixed to the housing and a second anti-shake coil fixed to the support frame.

[0042] By definition, the direction in which the first driving component drives the lens barrel support to move horizontally is defined as the first direction, and the direction in which the second driving component drives the lens barrel support to move horizontally is defined as the second direction.

[0043] The projection profile of the first driving component along the first direction is larger than the projection of the focusing coil along the first direction; the projection profile of the second driving component along the second direction is larger than the projection of the focusing coil along the second direction.

[0044] The first focusing coil includes a first long side and a second long side arranged at intervals along the optical axis of the lens barrel support and perpendicular to the optical axis; a first connecting side connecting the first long side and the second long side and extending towards the lens barrel support; and a second connecting side connecting the first long side and the second long side and extending towards the lens barrel support. The first long side, the first connecting side, the second long side, and the second connecting side are sequentially connected and together form a hollow region. The focusing coil is respectively positioned opposite to and at intervals from the first magnet and the second magnet along the radial direction of the lens barrel support.

[0045] The length of the first long side is greater than the length of the first image stabilization coil extending along the second direction and the length of the second image stabilization coil extending along the first direction, respectively. The first image stabilization coil and the second image stabilization coil are respectively facing the hollow region and can be moved into the hollow region. The distance between the first long side and the first image stabilization coil along the first direction and the distance between the second long side and the first image stabilization coil along the first direction are both less than the travel distance of the first image stabilization coil relative to the lens barrel support.

[0046] The first connecting edge and the first magnet are arranged opposite each other at intervals along the radial direction of the lens barrel support; the first connecting edge includes a first bent section connecting the first long side, a second bent section connecting the second long side, and a first connecting section connecting the first bent section and the second bent section respectively; the distance between the first image stabilization coil and the first connecting section along the first direction is greater than the stroke of the first image stabilization coil relative to the lens barrel support;

[0047] The second connecting edge and the second magnet are arranged opposite each other at intervals along the radial direction of the lens barrel support; the second connecting edge includes a third bent section connecting the first long side, a fourth bent section connecting the second long side, and a second connecting section connecting the third bent section and the fourth bent section respectively; the distance between the second image stabilization coil and the second connecting section along the second direction is greater than the stroke of the second image stabilization coil relative to the lens barrel support.

[0048] Preferably, the lens barrel support has an inwardly recessed clearance groove in the area between the first long side and the second long side; the hollow area communicates with the clearance groove and together forms the travel space of the first image stabilization coil and the travel space of the second image stabilization coil; the lens barrel support is recessed in the areas corresponding to the first connecting edge and the second connecting edge to form two clearance grooves; the first connecting edge and the second connecting edge are respectively received in the corresponding clearance grooves.

[0049] Compared with related technologies, the lens driving device of this utility model designs the first connecting edge of the first focusing coil as a bent structure extending towards the lens barrel support, and limits the length of the first image stabilization coil along the extension direction of the first long side to be greater than the length of the first focusing coil. The first image stabilization coil faces the first hollow region and can move into the first hollow region. Furthermore, the distance between the first long side and the first image stabilization coil along the direction perpendicular to the optical axis, and the distance between the second long side and the first image stabilization coil along the direction perpendicular to the optical axis, are both limited to the travel distance of the first image stabilization coil relative to the lens barrel support. Simultaneously, the distance between the first image stabilization coil and the first connecting segment along the direction perpendicular to the optical axis is limited to the travel distance of the first image stabilization coil relative to the lens barrel support. This ensures that the overall length of the first focusing coil is greater than the overall length of the first image stabilization coil, so that the lens driving device has the driving force required for autofocus. Moreover, by reducing the distance between the first image stabilization coil and the first focusing coil, it ensures that the first image stabilization coil will not collide with the first focusing coil during movement, thereby reducing the size of the lens driving device and enabling its application in small electronic devices. In addition, this... Another lens driving device in the utility model defines the projection profile of the first driving component along the first direction as greater than the projection of the focusing coil along the first direction; the projection profile of the second driving component along the second direction as greater than the projection of the focusing coil along the second direction; and defines the first connecting edge and the second connecting edge of the focusing coil as a bent structure extending towards the lens barrel support. The length of the first long side is greater than the length of the first image stabilization coil extending along the second direction and the length of the second image stabilization coil extending along the first direction, respectively. It also defines the first image stabilization coil and the second image stabilization coil as facing the hollow region and being movable into the hollow region, and the stroke range of the first image stabilization coil and the second image stabilization coil relative to the lens barrel support, respectively. This ensures that the overall length of the focusing coil is greater than the overall length of the first image stabilization coil and the second image stabilization coil, so that the lens driving device has the driving force required for automatic focusing. Furthermore, it ensures that the first image stabilization coil and the second image stabilization coil will not collide with the focusing coil during movement while reducing the interval distance between them, thereby reducing the size of the lens driving device and enabling its application in small electronic devices. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1This is a three-dimensional structural diagram of the lens driving device provided in Embodiment 1 of the present utility model, which is equipped with a lens module;

[0052] Figure 2 This is a partially exploded structural diagram of the lens driving device provided in Embodiment 1 of the present utility model, which is equipped with a lens module.

[0053] Figure 3 For along Figure 1 Cross-sectional view along line AA;

[0054] Figure 4 This is a planar schematic diagram of the first image stabilization coil and the first focusing coil in the lens driving device provided in Embodiment 1 of this utility model, wherein (a) is a side view and (b) is a front view;

[0055] Figure 5 This is a partial exploded view of the lens driving device provided in Embodiment 2 of this utility model.

[0056] in, Figures 1 to 4 In the middle section, 100. Lens drive device; 1. Housing; 101. Base; 102. Top cover; 103. Center hole; 2. Support frame; 3. Lens barrel bracket; 31. First clearance groove; 32. First clearance groove; 4. Elastic support member; 41. First fixing arm; 42. Second fixing arm; 43. Spring arm; 5. Drive assembly; 51. First drive assembly; 511. First focusing coil; 5111. First long side; 5112. Second long side; 5113. First connecting side; 51131. First bending section; 51132. Second bending section; 51133. First connecting segment; 5114, Second connecting edge; 51141, Third bending segment; 51142, Fourth bending segment; 51143, Second connecting segment; 512, First image stabilization coil; 513, First magnet; 52, Second drive assembly; 521, Second image stabilization coil; 522, Second magnet; 6, Flexible circuit board; 7, Spring; 71, First connecting part; 72, Second connecting part; 73, Elastic part; 8, Suspension wire; 9, Support member; 91, First support part; 92, Second support part; 93, Third support part; 10, Ball bearing; 11, Lens module.

[0057] Figure 5 In the middle, 100a is the lens driving device; 5114a is the second connecting edge. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0059] Example 1

[0060] This utility model embodiment provides a lens driving device 100, combined with... Figures 1 to 4 As shown, it includes a housing 1, a support frame 2, a lens barrel bracket 3, an elastic support 4, and a drive assembly 5.

[0061] The outer casing 1 includes a base 101, an upper cover 102 covering the base 101, and a central hole 103 extending from the base 101 to the upper cover 102.

[0062] The support frame 2 has a ring-shaped structure with a receiving space. The support frame 2 is movably supported on the base 101. The lens barrel bracket 3 is received in the receiving space and spaced apart from the support frame 2. The lens barrel bracket 3 is used to install the lens module 11. After the lens module 11 is installed, it is positioned directly opposite the central hole 103.

[0063] The elastic support 4 elastically suspends the lens barrel support 3 within the receiving space; the drive assembly 5 is used to drive the lens barrel support 3 to move.

[0064] The drive assembly 5 includes a first drive assembly 51, which includes a first focusing coil 511, a first image stabilization coil 512, and a first magnet 513. The first focusing coil 511 is fixed to the outer periphery of the lens barrel support 3, the first image stabilization coil 512 is fixed to one of the support frame 2 and the outer shell 1, and the first magnet 513 is fixed to the other of the support frame 2 and the outer shell 1. The first focusing coil 511 and the first magnet 513 are arranged opposite each other at intervals along the radial direction of the lens barrel support 3, and the first image stabilization coil 512 and the first magnet 513 are arranged opposite each other at intervals along the optical axis.

[0065] The first focusing coil 511 includes a first long side 5111 and a second long side 5112 arranged at intervals along the optical axis of the lens barrel support 3 and perpendicular to the optical axis, a first connecting side 5113 connecting the first long side 5111 and the second long side 5112 and extending towards the lens barrel support 3, and a second connecting side 5114 connecting the first long side 5111 and the second long side 5112 and extending towards the lens barrel support 3; the first long side 5111, the first connecting side 5113, the second long side 5112 and the second connecting side 5114 are connected in sequence and together form a first hollow area.

[0066] The length of the first image stabilization coil 512 along the extension direction of the first long side 5111 is greater than the length of the first focusing coil 511. The first image stabilization coil 512 is directly opposite the first hollow region and can move into the first hollow region. The distance between the first long side 5111 and the first image stabilization coil 512 along the direction perpendicular to the optical axis, and the distance between the second long side 5112 and the first image stabilization coil 512 along the direction perpendicular to the optical axis, are both less than the travel distance of the first image stabilization coil 512 relative to the lens barrel support 3. Figure 4 As shown, the length of the first image stabilization coil 512 along the extension direction of the first long side 5111 is set to L. OIS The length of the first focusing coil 511 along the extension direction of the first long side 5111 is L. AF The distance between the first long side 5111 and the first image stabilization coil 512 along the direction perpendicular to the optical axis is L1, the distance between the second long side 5112 and the first image stabilization coil 512 along the direction perpendicular to the optical axis is L2, and the stroke of the first image stabilization coil 512 relative to the lens barrel support 3 is S. Then L... OIS >L AF L1 < S, L2 < S.

[0067] The first connecting edge 5113 includes a first bent segment 51131 connecting the first long edge 5111, a second bent segment 51132 connecting the second long edge 5112, and a first connecting segment 51133 connecting the first bent segment 51131 and the second bent segment 51132 respectively; the distance between the first image stabilization coil 512 and the first connecting segment 51133 along the direction perpendicular to the optical axis is greater than the stroke of the first image stabilization coil 512 relative to the lens barrel support 3. Figure 4 As shown, if the distance between the first anti-shake coil 512 and the first connecting segment 51133 along the direction perpendicular to the optical axis is set to L3, then L3 > S.

[0068] The second connecting edge 5114 includes a third bent segment 51141 that connects to the first long edge 5111 and bends towards the lens barrel support 3, a fourth bent segment 51142 that connects to the second long edge 5112 and bends towards the lens barrel support 3, and a second connecting segment 51143 that connects the third bent segment 51141 and the fourth bent segment 51142 respectively; the distance between the first image stabilization coil 512 and the second connecting segment 51143 in the direction perpendicular to the optical axis is greater than the stroke of the first image stabilization coil 512 relative to the lens barrel support 3; the first connecting edge 5113 and the second connecting edge 5114 extend for the same length in the direction towards the lens barrel support 3.

[0069] By limiting L OIS >L AFL1 < S, L2 < S, L3 > S, thus ensuring that the overall length of the first focusing coil 511 is greater than the overall length of the first image stabilization coil 512, so that the lens drive device 100 has the driving force required for autofocus, and can also ensure that the first image stabilization coil 512 will not collide with the first focusing coil 511 while reducing the interval between the first image stabilization coil 512 and the first focusing coil 511, thereby reducing the size of the lens drive device 100 and making it applicable to small electronic devices.

[0070] The lens barrel support 3 has a first clearance groove 31 recessed in the area between the first long side 5111 and the second long side 5112, moving away from the first image stabilization coil 512. The first hollow area communicates with the first clearance groove 31 and together they form the travel space of the first image stabilization coil 512. This design can further ensure that the first image stabilization coil 512 will not collide with the first focusing coil 511, given the distance between the first image stabilization coil 512 and the first focusing coil 511.

[0071] The travel space is the travel space of the first focusing coil 511 relative to the first image stabilization coil 512. Of course, it can also be equivalent to the travel space of the first image stabilization coil 512 within the first focusing coil 511 and the first clearance groove 3.

[0072] The lens barrel support 3 has two recessed areas corresponding to the first connecting edge 5113 and the second connecting edge 5114, forming two first clearance grooves 32. The two first clearance grooves 32 are respectively connected to the two ends of the first clearance groove 31, and the first connecting edge 5113 and the second connecting edge 5114 are respectively received in the corresponding first clearance grooves 32. This design ensures that the bending of the first connecting edge 5113 and the second connecting edge 5114 will not increase the area occupied by the first focusing coil 511, that is, it will not increase the size of the lens drive device 100.

[0073] The lens drive device 100 further includes a second drive assembly 52, which is arranged circumferentially with the first drive assembly 51 along the lens barrel support 3. The second drive assembly includes a second image stabilization coil 521 and a second magnet 522 spaced apart from the second image stabilization coil 521 along the optical axis. The second magnet 522 is fixed to the support frame 2, and the second image stabilization coil 521 is fixed to the housing 1. The first image stabilization coil 512 drives the lens barrel support 3 to move in a first direction, and the second image stabilization coil 521 drives the lens barrel support 3 to move in a second direction, both of which are perpendicular to the optical axis. Alternatively, the second magnet 522 is fixed to the housing 1, and the second image stabilization coil 521 is fixed to the support frame 2. The first magnet drives the lens barrel support 3 to move in the first direction, and the second magnet 522 drives the lens barrel support 3 to move in the second direction, both of which are perpendicular to the optical axis. Figure 2 As shown, the optical axis direction is as follows Figure 2 In the Z-axis, the first direction is as follows: Figure 2 In the X-axis, the second direction is as follows Figure 2 The Y-axis in the equation.

[0074] After the first focusing coil 511 interacts with the first magnet 513, it drives the lens barrel support 3 to move along the optical axis. After the first image stabilization coil 512 interacts with the first magnet 513, it drives the support frame 2 to move the lens barrel support 3 relative to the base 101 in the first direction. After the second image stabilization coil 521 interacts with the second magnet 522, it drives the support frame 2 to move the lens barrel support 3 relative to the base 101 in the second direction.

[0075] In this embodiment, the first magnet 513 includes two magnets, which are arranged at intervals along the optical axis on the upper and lower planes of the first anti-shake coil 512. Of course, depending on the actual needs, only one first magnet 513 may be designed. The second magnet 522 also includes two magnets, which are arranged at intervals along the optical axis on the upper or lower plane of the first anti-shake coil 512. Of course, depending on the actual needs, only one second magnet 522 may be designed.

[0076] The elastic support 4 is electrically connected to the first focusing coil 511 and the second focusing coil 521 respectively; the lens drive device 100 also includes a flexible circuit board 6, a spring 7 and a suspension wire 8.

[0077] The flexible circuit board 6 is attached and fixed to the side of the support frame 2 away from the base 101 and forms a fixed electrical connection with the elastic support 4; the spring piece 7 is fixed to the side of the support frame 2 away from the base 101 and forms an electrical connection with the flexible circuit board 6; one end of the suspension wire 8 is fixed to the spring piece 7 and forms an electrical connection with the spring piece 7, and the other end of the suspension wire 8 is fixed to the base 101. The suspension wire 8 and the support frame 2 are spaced apart. This design allows the four lines—power voltage line, ground line, serial clock line, and serial data line—to be led to the four pins of the base 101 in sequence through the elastic support 4, the flexible circuit board 6, the spring piece 7, and the metal suspension wire 8, so as to facilitate electrical connection with external devices. At the same time, the suspension wire 8 and the spring piece 7 provide elastic support for the support frame.

[0078] In this embodiment, the support frame 2 is rectangular; the elastic support member 4 includes two members and is spaced apart around the lens tube bracket 3; the spring piece 7 and the suspension wire 8 each include four members, the four spring pieces 7 are respectively located at the four corners of the support frame 2, and the four suspension wires 8 are respectively fixed to the four spring pieces 7.

[0079] The elastic support 4 includes a first fixed arm 41 fixed to the side of the lens barrel bracket 3 away from the base 101, two second fixed arms 42 fixed to the side of the support frame 2 away from the base 101 and spaced apart from each other, and two elastic arms 43 extending from both ends of the first fixed arm 41 toward the two second fixed arms 42 and forming a fixed connection with the second fixed arms 42. At least one second fixed arm 42 is fixed to the side of the flexible circuit board 6 away from the support frame 2 and forms an electrical connection with the flexible circuit board 6. The first fixed arms 41 of the two elastic support 4 are electrically connected to the first focusing coil 511 and the second focusing coil 521, respectively.

[0080] Each spring piece 7 includes a first connecting portion 71 fixed to the side of the support frame 2 away from the base 101, a second connecting portion 72 fixedly connected to the corresponding suspension wire 8, and two elastic portions 73 extending from both ends of the first connecting portion 71 toward the second connecting portion 72 and fixedly connected to the second connecting portion 72. The second connecting portion 72 is electrically connected to the corresponding suspension wire 8, and both the second connecting portion 72 and the elastic portions 73 are suspended. The first connecting portions 71 of three spring pieces 7 are fixedly electrically connected to the flexible circuit board 6, and the first connecting portion 71 of the other spring piece 7 is connected to one of the second fixing arms 42 of the corresponding elastic support member 4 and forms an electrical connection.

[0081] In this embodiment, the first anti-shake coil 512 and the second anti-shake coil 521 are respectively fixed to the base 101, and the first magnet 513 and the second magnet 522 are respectively fixed to the support frame 2, forming a moving iron structure. If the first anti-shake coil 512 and the second anti-shake coil 521 are respectively fixed to the support frame 2, and the first magnet 513 and the second magnet 522 are respectively fixed to the base 101, a moving coil structure is formed.

[0082] The lens drive device 100 also includes a support member 9, which extends protruding from the base 101 toward the upper cover 102 and supports and fixes the first image stabilization coil 512 and the second image stabilization coil 521 respectively. The support member 9 includes a first support portion 91 fixed to the base 101, two second support portions 92 fixed to the first image stabilization coil 512 and the second image stabilization coil 521 respectively, and a third support portion 93 extending from the first support portion 91 toward the two second support portions 92 and connecting to them. The second support portions 92 are also fixed to the inner periphery of the upper cover 102. This design allows for better fixation of the first image stabilization coil 512 and the second image stabilization coil 521 to the base 101.

[0083] The lens drive device 100 also includes ball bearings 10 clamped between the support frame 2 and the lens barrel bracket 3.

[0084] Compared with related technologies, the lens driving device 100 in this embodiment designs the first connecting edge 5113 and the second connecting edge 5114 of the first focusing coil 511 as bent structures extending towards the lens barrel support 3, and limits the length of the first image stabilization coil 512 along the extension direction of the first long side 5111 to be greater than the length of the first focusing coil 511. The first image stabilization coil 512 faces the first hollow region and can move into the first hollow region. It also limits the spacing between the first long side 5111 and the first image stabilization coil 512 along the direction perpendicular to the optical axis, and the spacing between the second long side 5112 and the first image stabilization coil 512 along the direction perpendicular to the optical axis to be less than the spacing between the first focusing coil 5111 and the first focusing coil 512. 2. The distance between the first image stabilization coil 512 and the first connecting section 51133 along the direction perpendicular to the optical axis is limited to the travel distance of the first image stabilization coil 512 relative to the travel distance of the lens barrel support 3. This ensures that the overall length of the first focusing coil 511 is greater than the overall length of the first image stabilization coil 512, so that the lens drive device 100 has the driving force required for autofocus. Furthermore, by reducing the distance between the first image stabilization coil 512 and the first focusing coil 511, it is ensured that the first image stabilization coil 512 will not collide with the first focusing coil 511 during movement. This reduces the size of the lens drive device 100, making it applicable to small electronic devices.

[0085] Example 2

[0086] like Figure 5 As shown, the lens driving device 100a in this embodiment differs from the lens driving device 100 in Embodiment 1 in that the second connecting edge 5114a is a straight edge and is on the same plane as the first long edge 5111 and the second long edge 5112, which is equivalent to only the first connecting edge 5113 bending and extending towards the lens barrel support 3; correspondingly, there is only one first clearance groove 31, which corresponds to the position of the first connecting edge 5113.

[0087] Although only the first connecting edge 5113 of the lens drive device 100a in this embodiment bends and extends towards the lens barrel support 3, it can still achieve the effect of reducing the size of the lens drive device 100a.

[0088] Example 3

[0089] The lens driving device in this embodiment differs from the lens driving device 100 in Embodiment 1 in that the second driving component 52 further includes a second focusing coil 521 fixed to the outer periphery of the lens barrel support 3. The first focusing coil 511 is arranged and fixed to the lens barrel support 3 along the first direction, and the second focusing coil is arranged and fixed to the lens barrel support 3 along the second direction. The first focusing coil 511 and the second focusing coil are spaced apart from each other.

[0090] The second focusing coil 521 includes a third long side and a fourth long side arranged at intervals along the optical axis of the lens barrel support 3 and perpendicular to the optical axis, a third connecting side connecting the third long side and the fourth long side and extending towards the lens barrel support 3 by bending, and a fourth connecting side connecting the third long side and the fourth long side; the third long side, the third connecting side, the fourth long side and the fourth connecting side are connected in sequence to form a second hollow region; the second focusing coil and the second magnet 522 are arranged opposite to each other and at intervals along the radial direction of the lens barrel support 3.

[0091] The length of the second image stabilization coil 521 along the extension direction of the third long side is greater than the length of the second focusing coil 521. The second image stabilization coil 521 is directly facing the second hollow area and can be moved into the second hollow area. The distance between the third long side and the second image stabilization coil 521 along the direction perpendicular to the optical axis and the distance between the fourth long side and the second image stabilization coil 521 along the direction perpendicular to the optical axis are both less than the travel distance of the second image stabilization coil 521 relative to the lens barrel support 3.

[0092] The third connecting edge includes a fifth bend connecting the third long edge, a sixth bend connecting the fourth long edge, and a third connecting segment connecting the fifth bend and the sixth bend respectively; the distance between the second image stabilization coil 521 and the third connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the second image stabilization coil 521 relative to the lens barrel support 3.

[0093] To further reduce the size of the lens drive mechanism, the fourth connecting edge is designed to include a seventh bent segment that connects to the third long edge and extends towards the lens barrel support, an eighth bent segment that connects to the fourth long edge and extends towards the lens barrel support, and a fourth connecting segment that connects the seventh and eighth bent segments respectively. The distance between the second image stabilization coil and the fourth connecting segment in the direction perpendicular to the optical axis is greater than the travel distance of the second image stabilization coil relative to the lens barrel support. The third and fourth connecting edges extend for the same length towards the lens barrel support. Of course, depending on actual needs, only the third connecting edge can be designed as a bent structure, which can also achieve the effect of reducing the size of the lens drive mechanism.

[0094] After the second focusing coil 521 interacts with the second magnet 522, it is used to drive the lens barrel support 3 to move along the optical axis.

[0095] By comparison, it can be seen that the second focusing coil 521 has a basically the same or similar structure to the first focusing coil 511.

[0096] Correspondingly, the lens barrel support 3 is provided with a second clearance groove in the area between the third long side and the fourth long side, which is recessed away from the second image stabilization coil 521; the second hollow area is connected to the second clearance groove and together form the travel space of the second image stabilization coil 521.

[0097] The lens barrel support 3 is recessed in the areas corresponding to the third connecting edge and the fourth connecting edge to form two second clearance grooves; the two second clearance grooves are respectively connected to the two ends of the second clearance groove, and the third connecting edge and the fourth connecting edge are respectively received in the corresponding second clearance groove.

[0098] This embodiment increases the driving force for the lens barrel support 3 to move along the optical axis by adding a second focusing coil 521 that is the same as or similar to the first focusing coil 511; by adding a second clearance groove that is the same as or similar to the first clearance groove 31, it can ensure that the first image stabilization coil 512 will not collide with the first focusing coil 511 while maintaining the distance between the first image stabilization coil 512 and the first focusing coil 511; by adding a second clearance groove that is the same as or similar to the first clearance groove 32, it can be ensured that the bending of the third connecting edge and the fourth connecting edge will not increase the area occupied by the second focusing coil 521, that is, it will not increase the size of the lens drive device.

[0099] Example 4

[0100] The lens driving device in this embodiment differs from the lens driving device 100 in Embodiment 1 in that the lens barrel support 3 is circular; the driving component 5 includes a focusing coil, a first driving component, and a second driving component. The focusing coil is fixed to the outer periphery of the lens barrel support 3, which is equivalent to the focusing coil being arranged along the circular outer periphery of the lens barrel support 3 and being semi-circular; the first driving component and the second driving component are respectively disposed on adjacent sides of the support frame 2.

[0101] The first drive assembly includes a first anti-shake coil fixed to the housing 1 and a first magnet fixed to the support frame 2, or a first magnet fixed to the housing 1 and a first anti-shake coil fixed to the support frame 2; the second drive assembly includes a second anti-shake coil fixed to the housing 1 and a second magnet fixed to the support frame 2, or a second magnet fixed to the housing 1 and a second anti-shake coil fixed to the support frame 2.

[0102] In this embodiment, the arrangement of the first magnet and the first anti-shake coil of the first driving component is similar to or the same as the arrangement of the first magnet 513 and the first anti-shake coil 512 in Embodiment 1; the arrangement of the second magnet and the second anti-shake coil of the second driving component in this embodiment is similar to or the same as the arrangement of the second magnet 522 and the second anti-shake coil 521 in Embodiment 1, and will not be described in detail here.

[0103] The first driving component drives the lens barrel support 3 to move horizontally in the first direction, and the second driving component drives the lens barrel support 3 to move horizontally in the second direction.

[0104] The projection profile of the first driving component along the first direction is larger than the projection of the focusing coil along the first direction; the projection profile of the second driving component along the second direction is larger than the projection of the focusing coil along the second direction.

[0105] The focusing coil includes a first long side and a second long side arranged at intervals along the optical axis of the lens barrel support 3 and perpendicular to the optical axis, a first connecting side connecting the first long side and the second long side and extending towards the lens barrel support 3 by bending, and a second connecting side connecting the first long side and the second long side and extending towards the lens barrel support 3 by bending; the first long side, the first connecting side, the second long side and the second connecting side are connected in sequence and together form a hollow area; the focusing coil is respectively arranged opposite to and at intervals with the first magnet and the second magnet along the radial direction of the lens barrel support 3.

[0106] The length of the first long side is greater than the length of the first image stabilization coil extending along the second direction and the length of the second image stabilization coil extending along the first direction. The first image stabilization coil and the second image stabilization coil are respectively facing the hollow area and can be moved into the hollow area. The distance between the first long side and the first image stabilization coil along the first direction and the distance between the second long side and the first image stabilization coil along the first direction are both less than the travel distance of the first image stabilization coil relative to the lens barrel support 3. The distance between the first long side and the second image stabilization coil along the second direction and the distance between the second long side and the second image stabilization coil along the second direction are both less than the travel distance of the second image stabilization coil relative to the lens barrel support 3. Let L41 be the distance between the first long side and the first image stabilization coil along the first direction, L42 be the distance between the second long side and the first image stabilization coil along the first direction, L51 be the distance between the first long side and the second image stabilization coil along the second direction, L52 be the distance between the second long side and the second image stabilization coil along the second direction, S1 be the stroke of the first image stabilization coil relative to the lens barrel support 3, and S2 be the stroke of the second image stabilization coil relative to the lens barrel support 3. Then, L41 < S1, L42 < S1, L51 < S2, and L51 < S2.

[0107] The first connecting edge and the first magnet are arranged opposite each other at intervals along the radial direction of the lens barrel support 3; the first connecting edge includes a first bent section connecting the first long side, a second bent section connecting the second long side, and a first connecting section connecting the first bent section and the second bent section respectively; the distance between the first image stabilization coil and the first connecting section along the first direction is greater than the stroke of the first image stabilization coil relative to the lens barrel support 3. Let the distance between the first image stabilization coil and the first connecting section along the first direction be L6, then L6 > S1.

[0108] The second connecting edge and the second magnet are arranged opposite each other at intervals along the radial direction of the lens barrel support 3; the second connecting edge includes a third bent section connecting the first long side, a fourth bent section connecting the second long side, and a second connecting section connecting the third bent section and the fourth bent section respectively; the distance between the second image stabilization coil and the second connecting section along the second direction is greater than the stroke of the second image stabilization coil relative to the lens barrel support 3. Let the distance between the second image stabilization coil and the second connecting section along the second direction be L7, then L7 > S2.

[0109] The focusing coil in this embodiment is similar to the first focusing coil 511 in embodiment one. The difference is that the focusing coil in this embodiment is arranged in a semi-circular shape and has a longer length along the extension direction of the first long side, which will not be described in detail here.

[0110] The lens barrel support 3 has an inwardly recessed clearance groove in the area between the first and second long sides; the hollow area communicates with the clearance groove and together form the travel space of the first and second image stabilization coils. This design can further ensure that the first and second image stabilization coils will not collide with the focusing coil when they move, while reducing the distance between the first and second image stabilization coils and the focusing coil respectively.

[0111] The lens barrel support 3 has two recessed grooves corresponding to the areas of the first and second connecting edges, respectively. The first and second connecting edges are respectively housed in the corresponding recessed grooves, and the two recessed grooves are respectively connected to the clearance grooves. This design ensures that bending the first and second connecting edges will not increase the area occupied by the focusing coil, that is, it will not increase the size of the lens drive device.

[0112] The clearance groove in this embodiment is similar to or the same as the first clearance groove 31 in Embodiment 1; the yielding groove in this embodiment is similar to or the same as the first yielding groove 32 in Embodiment 1, and will not be described in detail here.

[0113] The elastic support in this embodiment has the same or similar structure as the elastic support 4 in Embodiment 1, and will not be described in detail here.

[0114] Compared with related technologies, the lens driving device in this embodiment limits the projection profile of the first driving component along the first direction to be larger than the projection of the focusing coil along the first direction; the projection profile of the second driving component along the second direction to be larger than the projection of the focusing coil along the second direction; and limits the first connecting edge and the second connecting edge of the focusing coil to be bent structures extending towards the lens barrel support 3. The length of the first long side is greater than the length of the first image stabilization coil extending along the second direction and the length of the second image stabilization coil extending along the first direction, respectively. It also limits the first image stabilization coil and the second image stabilization coil to be directly opposite the hollow area and movable into the hollow area, and the stroke range of the first image stabilization coil and the second image stabilization coil relative to the lens barrel support 3, thereby ensuring that the overall length of the focusing coil is greater than the overall length of the first image stabilization coil and the second image stabilization coil, so that the lens driving device has the driving force required for autofocus. Moreover, it can ensure that the first image stabilization coil and the second image stabilization coil will not collide with the focusing coil when they move while reducing the interval distance between the first image stabilization coil and the second image stabilization coil and the focusing coil, thereby reducing the size of the lens driving device and making it applicable to small electronic devices.

[0115] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lens driving device, comprising: The housing includes a base, a top cover disposed on the base, and a central hole extending from the base to the top cover; A support frame, wherein the support frame is a ring-shaped structure with a receiving space, and the support frame is movably supported on the base; A lens barrel bracket, which is housed within the receiving space and spaced apart from the support frame, is used to mount a lens module; An elastic support member that elastically suspends the lens barrel support within the receiving space; as well as, A drive assembly, wherein the drive assembly is used to drive the lens barrel support to move; characterized in that, The drive assembly includes a first drive assembly, which includes a first focusing coil fixed to the outer periphery of the lens barrel support, a first image stabilization coil fixed to the housing, and a first magnet fixed to the support frame, or a first magnet fixed to the housing and a first image stabilization coil fixed to the support frame. The first focusing coil includes a first long side and a second long side arranged at intervals along the optical axis of the lens barrel support and perpendicular to the optical axis, a first connecting side connecting the first long side and the second long side and extending towards the lens barrel support by bending, and a second connecting side connecting the first long side and the second long side; the first long side, the first connecting side, the second long side, and the second connecting side are sequentially connected and together form a first hollow region; the first focusing coil and the first magnet are opposite to each other and spaced apart along the radial direction of the lens barrel support; The first image stabilization coil and the first magnet are positioned opposite each other along the optical axis of the lens barrel support. The length of the first image stabilization coil along the extension direction of the first long side is greater than the length of the first focusing coil. The first image stabilization coil is directly opposite the first hollow region and can move into the first hollow region. The distance between the first long side and the first image stabilization coil along the direction perpendicular to the optical axis, and the distance between the second long side and the first image stabilization coil along the direction perpendicular to the optical axis, are both less than the travel distance of the first image stabilization coil relative to the lens barrel support. The first connecting edge includes a first bent segment connecting the first long side, a second bent segment connecting the second long side, and a first connecting segment connecting the first bent segment and the second bent segment respectively; the distance between the first image stabilization coil and the first connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the first image stabilization coil relative to the lens barrel support.

2. The lens driving device according to claim 1, wherein The second connecting edge includes a third bent segment that connects to the first long side and bends towards the lens barrel support, a fourth bent segment that connects to the second long side and bends towards the lens barrel support, and a second connecting segment that connects the third bent segment and the fourth bent segment respectively; the distance between the first image stabilization coil and the second connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the first image stabilization coil relative to the lens barrel support.

3. The lens driving apparatus according to claim 2, wherein The lens barrel support has a first clearance groove recessed in the area between the first long side and the second long side, which moves away from the first image stabilization coil; the first hollow area is connected to the first clearance groove and together form the travel space of the first image stabilization coil.

4. The lens driving apparatus according to claim 3, wherein The lens barrel support is recessed in the areas corresponding to the first connecting edge and the second connecting edge to form two first clearance grooves; the two first clearance grooves are respectively connected to the two ends of the first clearance groove, and the first connecting edge and the second connecting edge are respectively received in the corresponding first clearance groove.

5. The lens driving apparatus according to claim 4, wherein The lens driving device further includes a second driving component, which is arranged circumferentially with the first driving component along the lens barrel support. The second driving component includes a second image stabilization coil and a second magnet spaced apart from the second image stabilization coil along the optical axis. The second magnet is fixed to the support frame, and the second image stabilization coil is fixed to the housing. The first image stabilization coil drives the lens barrel support to move along a first direction, and the second image stabilization coil drives the lens barrel support to move along a second direction. Both the first direction and the second direction are perpendicular to the optical axis. Alternatively, the second magnet is fixed to the outer casing, and the second anti-shake coil is fixed to the support frame; The first magnet drives the lens barrel support to move along a first direction, and the second magnet drives the lens barrel support to move along a second direction, both of which are perpendicular to the optical axis.

6. The lens driving apparatus according to claim 5, wherein The second drive assembly further includes a second focusing coil fixed to the outer periphery of the lens barrel support. The first focusing coil is arranged along the first direction and fixed to the lens barrel support, and the second focusing coil is arranged along the second direction and fixed to the lens barrel support. The first focusing coil and the second focusing coil are spaced apart from each other. The second focusing coil includes a third long side and a fourth long side arranged at intervals along the optical axis of the lens barrel support and perpendicular to the optical axis; a third connecting side connecting the third long side and the fourth long side and extending and bending towards the lens barrel support; and a fourth connecting side connecting the third long side and the fourth long side. The third long side, the third connecting side, the fourth long side, and the fourth connecting side are sequentially connected and together form a second hollow region. The second focusing coil and the second magnet are arranged opposite to each other and at intervals along the radial direction of the lens barrel support. The length of the second image stabilization coil along the extension direction of the third long side is greater than the length of the second focusing coil. The second image stabilization coil is directly facing the second hollow region and can be moved into the second hollow region. The distance between the third long side and the second image stabilization coil along the direction perpendicular to the optical axis and the distance between the fourth long side and the second image stabilization coil along the direction perpendicular to the optical axis are both less than the travel distance of the second image stabilization coil relative to the lens barrel support. The third connecting edge includes a fifth bent segment connecting the third long side, a sixth bent segment connecting the fourth long side, and a third connecting segment connecting the fifth bent segment and the sixth bent segment respectively; the distance between the second image stabilization coil and the third connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the second image stabilization coil relative to the lens barrel support.

7. The lens driving apparatus according to claim 6, wherein The fourth connecting edge includes a seventh bent segment that connects to the third long side and bends towards the lens barrel support, an eighth bent segment that connects to the fourth long side and bends towards the lens barrel support, and a fourth connecting segment that connects the seventh bent segment and the eighth bent segment respectively; the distance between the second image stabilization coil and the fourth connecting segment along the direction perpendicular to the optical axis is greater than the stroke of the second image stabilization coil relative to the lens barrel support.

8. The lens driving apparatus according to claim 7, wherein The elastic support is electrically connected to the first focusing coil and the second focusing coil respectively; the lens driving device also includes a flexible circuit board, a spring, and a suspension wire; The flexible circuit board is attached and fixed to the side of the support frame away from the base and forms a fixed electrical connection with the elastic support. The spring clip is fixed to the side of the support frame away from the base and forms an electrical connection with the flexible circuit board; One end of the suspension wire is fixed to the spring and forms an electrical connection with the spring, and the other end of the suspension wire is fixed to the base. The suspension wire and the support frame are spaced apart.

9. The lens driving apparatus according to claim 8, wherein The support frame is rectangular; the elastic support includes two members and is spaced apart around the lens barrel bracket; the spring pieces and the suspension wires each include four members, the four spring pieces are respectively located at the four corners of the support frame, and the four suspension wires are respectively fixed to the four spring pieces.

10. The lens driving apparatus according to claim 9, wherein Each of the elastic supports includes a first fixed arm fixed to the side of the lens barrel bracket away from the base, two second fixed arms fixed to the side of the support frame away from the base and spaced apart from each other, and two elastic arms that bend and extend from both ends of the first fixed arm toward the two second fixed arms and are fixedly connected to the second fixed arms. At least one of the second fixed arms is fixed to the side of the flexible circuit board away from the support frame and is electrically connected to the flexible circuit board. The first fixed arms of the two elastic supports are electrically connected to the first focusing coil and the second focusing coil, respectively. Each of the spring pieces includes a first connecting portion fixed to the side of the support frame away from the base, a second connecting portion fixedly connected to the corresponding suspension wire, and two elastic portions extending from both ends of the first connecting portion toward the second connecting portion and fixedly connected to the second connecting portion. The second connecting portion is electrically connected to the corresponding suspension wire, and both the second connecting portion and the elastic portions are suspended. The first connecting portions of three of the spring pieces are fixedly electrically connected to the flexible circuit board, and the first connecting portion of the other spring piece is integrally connected to one of the second fixing arms of the corresponding elastic support member and forms an electrical connection.

11. A lens driving device, comprising: The outer casing includes a base, a top cover disposed on the base, and a central hole extending from the base to the top cover; A support frame, wherein the support frame is a rectangular ring structure with a receiving space, and the support frame is movably supported on the base; A lens barrel bracket, which is housed within the receiving space and spaced apart from the support frame, is circular and is used to mount a lens module; An elastic support member that elastically suspends the lens barrel support within the receiving space; as well as, A drive assembly, wherein the drive assembly is used to drive the lens barrel support to move; characterized in that, The driving assembly includes a focusing coil, a first driving assembly, and a second driving assembly. The focusing coil is fixed to the outer periphery of the lens barrel support. The first driving assembly and the second driving assembly are respectively disposed on two adjacent sides of the support frame. The first driving assembly includes a first anti-shake coil fixed to the housing and a first magnet fixed to the support frame, or a first magnet fixed to the housing and a first anti-shake coil fixed to the support frame; the second driving assembly includes a second anti-shake coil fixed to the housing and a second magnet fixed to the support frame, or a second magnet fixed to the housing and a second anti-shake coil fixed to the support frame. Defined as follows: the direction in which the first driving component drives the lens barrel support to move horizontally is the first direction; the direction in which the second driving component drives the lens barrel support to move horizontally is the second direction. The projection profile of the first driving component along the first direction is larger than the projection of the focusing coil along the first direction; the projection profile of the second driving component along the second direction is larger than the projection of the focusing coil along the second direction. The focusing coil includes a first long side and a second long side arranged at intervals along the optical axis of the lens barrel support and perpendicular to the optical axis; a first connecting side connecting the first long side and the second long side and extending towards the lens barrel support; and a second connecting side connecting the first long side and the second long side and extending towards the lens barrel support. The first long side, the first connecting side, the second long side, and the second connecting side are sequentially connected and together form a hollow region. The focusing coil is respectively positioned opposite and at intervals to the first magnet and the second magnet along the radial direction of the lens barrel support. The length of the first long side is greater than the length of the first image stabilization coil extending along the second direction and the length of the second image stabilization coil extending along the first direction, respectively. The first image stabilization coil and the second image stabilization coil are respectively facing the hollow region and can be moved into the hollow region. The distance between the first long side and the first image stabilization coil along the first direction and the distance between the second long side and the first image stabilization coil along the first direction are both less than the travel distance of the first image stabilization coil relative to the lens barrel support. The first connecting edge and the first magnet are arranged opposite each other at intervals along the radial direction of the lens barrel support; the first connecting edge includes a first bent section connecting the first long side, a second bent section connecting the second long side, and a first connecting section connecting the first bent section and the second bent section respectively; the distance between the first image stabilization coil and the first connecting section along the first direction is greater than the stroke of the first image stabilization coil relative to the lens barrel support; The second connecting edge and the second magnet are arranged opposite each other at intervals along the radial direction of the lens barrel support; the second connecting edge includes a third bent section connecting the first long side, a fourth bent section connecting the second long side, and a second connecting section connecting the third bent section and the fourth bent section respectively; the distance between the second image stabilization coil and the second connecting section along the second direction is greater than the stroke of the second image stabilization coil relative to the lens barrel support.

12. The lens driving apparatus according to claim 11, wherein The lens barrel support has an inwardly recessed clearance groove in the area between the first long side and the second long side; the hollow area communicates with the clearance groove and together forms the travel space of the first image stabilization coil and the travel space of the second image stabilization coil; the lens barrel support has two recessed clearance grooves in the areas corresponding to the first connecting edge and the second connecting edge; the first connecting edge and the second connecting edge are respectively received in the corresponding clearance grooves.

Images