Focus and anti-shake structure and focus and anti-shake camera

Abstract

The present invention discloses a focusing and anti-shake structure and a focusing and anti-shake camera. The first driving mechanism of the focusing and anti-shake structure includes a first frame and a first coil. When the first coil is energized, a magnetic induction is generated with a magnetic component to push the carrier platform to move along the Z-axis direction. The second driving mechanism includes a second frame and a second coil assembly. When the second coil assembly is energized, a magnetic induction is generated with the magnetic component to push the carrier platform to move along the X-axis direction and / or along the Y-axis direction respectively. The suspension mechanism constantly provides an elastic force to reset the carrier platform to the initial state along the Z-axis direction, X-axis direction, and Y-axis direction respectively. The flexible circuit board is arranged on the periphery of the second coil assembly and is electrically connected to the first coil and the second coil assembly respectively. The present invention is suitable for realizing the miniaturization and micro-miniaturization of the structure, has good anti-shake performance, can realize the directional jitter correction in the X-Y plane, and can effectively simplify the conductive process of the coil and reduce the overall height of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of camera devices, and particularly to a focusing and anti-shake structure and a focusing and anti-shake camera. Background Art

[0002] With the progress of science and the development of technology, existing mobile electronic devices such as mobile phones, tablet computers, and laptops have witnessed rapid development. The micro camera module is an important functional module of the above-mentioned mobile electronic devices. In order to obtain better shooting effects, existing micro camera modules generally have a focusing function and an anti-shake function.

[0003] However, the focusing structure of existing micro camera modules mainly uses a voice coil motor as a lens driving device to adjust the focal length of the camera. However, the structure of the voice coil motor is complex, which is not conducive to production, and its volume is too large, not meeting the requirements of portability and miniaturization. In addition, the existing anti-shake structure is complex and the assembly process is cumbersome, greatly increasing the manufacturing cost of enterprises. Summary of the Invention

[0004] The object of the present invention is to provide a focusing and anti-shake structure and a focusing and anti-shake camera, whose focusing structure is simple and the focusing process is stable, suitable for realizing the miniaturization and microminiaturization of the structure, having good anti-shake performance, capable of realizing the directional shake correction in the X-Y plane, and effectively simplifying the conductive process of the coil and reducing the overall height of the product.

[0005] In order to achieve the above object, the present invention discloses a focusing and anti-shake structure, which includes a carrier, a magnetic component, a first driving mechanism, a second driving mechanism, a suspension mechanism and a flexible circuit board. The carrier is used for mounting a camera body. The first driving mechanism includes a first frame and a first coil disposed around the carrier. The carrier is located within the first frame. The magnetic component is mounted on the first frame and distributed around the carrier. The first coil corresponds to the magnetic component. When the first coil is energized, a magnetic induction is generated with the magnetic component to push the carrier to move along the Z-axis direction. The second driving mechanism includes a second frame and a second coil assembly. The first frame is located within the second frame. The second coil assembly is disposed around the magnetic component and corresponds to the magnetic component. When the second coil assembly is energized, a magnetic induction is generated with the magnetic component to push the carrier to move along the X-axis direction and / or along the Y-axis direction respectively. The suspension mechanism is used for suspending the carrier and the first frame together within the second frame. When neither the first coil nor the second coil assembly is energized, the carrier is in an initial state. The suspension mechanism constantly provides an elastic force to reset the carrier to the initial state along the Z-axis direction, X-axis direction and Y-axis direction respectively. The flexible circuit board is disposed around the second coil assembly and is electrically connected to the first coil and the second coil assembly respectively.

[0006] Compared with the prior art, the first coil of the present invention is conducted to generate magnetic induction with the magnetic component to drive the carrier platform to move along the Z-axis direction, and the second coil assembly is conducted to generate magnetic induction with the magnetic component to drive the carrier platform to move along the X-axis direction and / or along the Y-axis direction respectively. The suspension mechanism constantly provides an elastic force to reset the carrier platform to the initial state along the Z-axis direction, the X-axis direction, and the Y-axis direction respectively. The flexible circuit board is arranged on the periphery of the second coil assembly and is electrically connected to the first coil and the second coil assembly respectively. On the one hand, the carrier platform is driven to move along the Z-axis direction by means of magnetic induction to achieve the focusing of the camera body. The driving method is simple and the driving structure occupies a small volume, which is suitable for miniaturizing and micro-miniaturizing the entire focusing and anti-shake structure. Moreover, the carrier platform is subjected to an elastic force to be reset to the initial state along the Z-axis direction, effectively ensuring the stability of the focusing process. On the other hand, the carrier platform and the first frame are jointly suspended in the second frame, and the carrier platform is subjected to an elastic force to be reset to the initial state along the X-axis direction and the Y-axis direction, ensuring that the carrier platform can effectively offset jitter through the suspension mechanism. On the third hand, the carrier platform is driven to move along the X-axis direction and the Y-axis direction by means of magnetic induction, and the directional jitter correction of the carrier platform on the X-Y plane is realized through the magnetic induction driving method, further improving the anti-shake performance of the focusing and anti-shake structure. On the fourth hand, both the second coil assembly and the flexible circuit board are arranged on the periphery of the magnetic component, effectively reducing the overall height of the product. The flexible circuit board can be electrically connected to the first coil and the second coil assembly respectively by direct soldering, without wire routing, effectively simplifying the conductive process of the coil.

[0007] Preferably, the focusing and anti-shake structure further includes a mounting seat, the suspension mechanism and the second coil assembly are respectively mounted on the mounting seat, and the flexible circuit board is looped around the side wall of the mounting seat.

[0008] Preferably, the suspension mechanism includes two separately arranged suspension components. The flexible circuit board includes a first positive power supply terminal and a first negative power supply terminal. The first positive power supply terminal is electrically connected to one of the suspension components, the first negative power supply terminal is electrically connected to the other suspension component, the positive electrode of the first coil is electrically connected to one of the suspension components, and the negative electrode is electrically connected to the other suspension component.

[0009] Specifically, the magnetic component includes two magnetic members. Each magnetic member includes two relatively arranged magnetic monomers. One of the two magnetic members is arranged along the X-axis direction so that magnetic monomers correspond to both sides of the carrier platform along the X-axis direction respectively, and the other of the two magnetic members is arranged along the Y-axis direction so that magnetic monomers correspond to both sides of the carrier platform along the Y-axis direction respectively.

[0010] Preferably, the second coil assembly includes two second coil members, each second coil member includes two second coils, the two second coils in one of the two second coil members respectively correspond to the two magnetic monomers arranged along the X-axis direction, and the two second coils in the other of the two second coil members respectively correspond to the two magnetic monomers arranged along the Y-axis direction.

[0011] Specifically, the flexible circuit board further includes four second power supply terminal assemblies respectively corresponding to the second coils, each second power supply terminal assembly includes a second positive power supply terminal and a second negative power supply terminal, the second positive power supply terminal is electrically connected to the positive pole of the second coil, and the second negative power supply terminal is electrically connected to the negative pole of the second coil.

[0012] Preferably, the suspension assembly includes a first cantilever assembly, a first fixing piece, a second cantilever member and a second fixing piece connected in sequence. The first cantilever assembly is respectively connected to the carrier and the first fixing piece, the first fixing piece is connected to the first frame, the second fixing piece is connected to the second frame. The first cantilever assembly is used to provide an elastic force for resetting the carrier to the initial state along the Z-axis direction, and the second cantilever member is used to provide an elastic force for resetting the carrier to the initial state along the X-axis direction and an elastic force for resetting the carrier to the initial state along the Y-axis direction.

[0013] Specifically, the first cantilever assembly includes at least one first cantilever, the first cantilever is respectively connected to the carrier and the first frame, and all the first cantilevers jointly and evenly suspend the carrier in the first frame to provide an elastic force for resetting the carrier to the initial state along the Z-axis direction;

[0014] The second cantilever member includes two second cantilevers, the second cantilevers are connected to the first fixing piece, and one of the two second cantilevers is arranged outside the first frame along the X-axis / Y-axis direction and is respectively connected to the first fixing piece and the second fixing piece to provide an elastic force for resetting the carrier to the initial state along the X-axis / Y-axis direction;

[0015] The focusing and anti-shake structure further includes a mounting seat, the suspension assembly further includes a third fixing piece, the third fixing piece is fixed on the mounting seat, and one of the two second cantilevers is arranged outside the first frame along the Y-axis / X-axis direction and is respectively connected to the second fixing piece and the third fixing piece to provide an elastic force for resetting the carrier to the initial state along the Y-axis / X-axis direction.

[0016] Preferably, the suspension mechanism further includes a third cantilever assembly, the third cantilever assembly is arranged on the other side of the carrier relative to the first cantilever assembly, and the third cantilever assembly is respectively connected to the carrier and the first frame.

[0017] Preferably, the focusing and anti-shake structure further includes a position detection component, which is electrically connected to the flexible circuit board, and is used to detect the moving distance of the carrier table along the X-axis direction and the moving distance along the Y-axis direction.

[0018] Preferably, the carrier table, the first frame, the first coil and the second frame are coaxially arranged, and the central axes of the carrier table, the first frame, the first coil and the second frame are all arranged along the Z-axis direction.

[0019] Correspondingly, the present invention also discloses a focusing and anti-shake camera, which includes a camera body, a housing and the focusing and anti-shake structure as described above, and the focusing and anti-shake structure is arranged in the housing. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the focusing and anti-shake camera of the present invention;

[0021] Figure 2 is Figure 1 exploded schematic diagram of;

[0022] Figure 3 is Figure 1 schematic structural diagram after removing the housing;

[0023] Figure 4 is Figure 1 top view after removing the housing;

[0024] Figure 5 is a position schematic diagram of the carrier table, the first frame, the second frame, the mounting seat and the flexible circuit board of the present invention;

[0025] Figure 6 is Figure 1 bottom view after removing the housing and the mounting seat;

[0026] Figure 7 is a plan view of the suspension mechanism of the present invention except the third suspension component. Detailed Description of the Invention

[0027] In order to describe in detail the technical content, structural features, achieved objectives and effects of the present invention, the following is described in detail in conjunction with the embodiments and with reference to the drawings.

[0028] Please refer to Figure 1As shown in the figure, the focusing and anti-shake camera 1000 of this embodiment includes a camera body (not shown in the figure), a housing 200, and a focusing and anti-shake structure 100. The focusing and anti-shake structure 100 is disposed inside the housing 200. The focusing and anti-shake structure 100 is used to adjust the position of the camera body in the Z-axis direction to achieve the focusing function, and is also used to buffer the jitter interference of the camera body to achieve the anti-shake function. It can also actively correct the jitter of the camera body in the X-Y plane to ensure the normal operation of the camera body.

[0029] Please refer to Figures 2 - 4 As shown in the figure, the focusing and anti-shake structure 100 of this embodiment includes a carrier 10, a magnetic component, a first driving mechanism, a second driving mechanism, a suspension mechanism 50, a mounting seat 60, and a flexible circuit board 70. Among them, the carrier 10 is provided with a mounting groove 11 matching the camera body, and the camera body is fixed on the carrier 10 through the mounting groove 11. The flexible circuit board 70 is looped around the side wall of the mounting seat. In other embodiments, the flexible circuit board 70 can be replaced by an ultra-thin rigid circuit board.

[0030] The first driving mechanism includes a first frame 31 and a first coil 32 looped around the carrier 10. The first coil 32 is fixed on the side wall of the carrier 10 by winding and is electrically connected to the flexible circuit board 70. The first frame 31 has a rectangular ring structure. The carrier 10 is located inside the first frame 31 and has a certain gap with the first frame 31. The magnetic component is installed on the first frame 31 and is distributed around the circumference of the carrier 10. The first coil 32 corresponds to the magnetic component. When the first coil 32 is energized, a magnetic induction is generated with the magnetic component to push the carrier 10 to move in the Z-axis direction.

[0031] Preferably, the magnetic component includes two magnetic members. Each magnetic member includes two magnetic monomers 20 arranged oppositely. One of the two magnetic members is arranged along the X-axis direction, so that magnetic monomers 20 are respectively corresponding to both sides of the carrier 10 along the X-axis direction. The other of the two magnetic members is arranged along the Y-axis direction, so that magnetic monomers 20 are respectively corresponding to both sides of the carrier 10 along the Y-axis direction. The four side frames of the first frame 31 are all provided with first embedding grooves 311 for embedding and fixing the magnetic monomers 20. At this time, the four side frames of the first frame 31 are all embedded with magnetic monomers 20. Assuming that the central position of the carrier 10 is the origin of the X-Y plane, a magnetic monomer 20 corresponds to the positive X-axis direction, the negative X-axis direction, the positive Y-axis direction, and the negative Y-axis direction of the carrier 10 respectively.

[0032] Preferably, the four magnetic units are at the same height and correspond to the height where the first coil 32 is located. When the first coil 32 is energized, a current is generated in the first coil 32. The first coil 32 generates magnetic induction with all the magnetic monomers 20, and the first coil 32 can move relative to the magnetic component in the Z-axis direction under the action of magnetic force, thereby driving the carrier 10 to move synchronously in the Z-axis direction. Specifically, by changing the current direction of the first coil 32, the carrier 10 can be driven to move in the positive or negative Z-axis direction, and by controlling the current magnitude of the first coil 32, the moving distance of the carrier can be controlled, thereby controlling the focusing parameters of the camera body.

[0033] It should be noted that by changing the number of turns of the first coil 32, the magnetic induction intensity between the first coil 32 and all the magnetic monomers 20 can be adjusted under the condition of the same current magnitude, so as to adjust the force received by the carrier 10 in the Z-axis direction.

[0034] Please refer to Figures 2 - 5 As shown in the figure, the second driving mechanism of this embodiment includes a second frame 41 and a second coil assembly. The second coil assembly is electrically connected to the flexible circuit board 70. The second frame 41 has a rectangular ring structure. The first frame 31 is located inside the second frame 41 and has a certain gap from the second frame 41. Preferably, as Figure 5 shown in the figure, the carrier 10, the first frame 31, the first coil 32, and the second frame 41 are coaxially arranged. The central axes of the carrier 10, the first frame 31, the first coil 32, and the second frame 41 are all arranged along the Z-axis direction, which is convenient for assembly and adjustment. The second coil assembly is arranged on the periphery of the magnetic component and corresponds to the magnetic component. When the second coil assembly is energized, it generates magnetic induction with the magnetic component to drive the carrier 10 to move in the X-axis direction and / or in the Y-axis direction respectively.

[0035] Preferably, the second coil assembly includes two second coil members. Each second coil member includes two second coils 42. The two second coils 42 in one of the two second coil members correspond one by one to the two magnetic monomers 20 arranged along the X-axis direction, and the two second coils 42 in the other of the two second coil members correspond one by one to the two magnetic monomers 20 arranged along the Y-axis direction. At this time, one second coil 42 corresponds to the outside of each magnetic unit, that is, one second coil 42 corresponds to the positive X-axis direction, the negative X-axis direction, the positive Y-axis direction, and the negative Y-axis direction outside the carrier 10. The second coil 42 corresponds to the magnetic unit in the corresponding direction. Specifically, the second coil 42 is located on the side of the magnetic unit in the corresponding direction away from the carrier 10.

[0036] When a single second coil 42 is turned on, the second coil 42 generates a current. The second coil 42 generates a magnetic induction with the corresponding magnetic monomer 20, and the second coil 42 can move relative to the magnetic unit in the positive or negative direction of the X-axis / Y-axis under the action of magnetic force. Taking the second coil 42 provided on the positive side of the X-axis of the carrier 10 as an example, when the second coil 42 is energized, the first frame 31 can move in the positive direction of the X-axis relative to the second coil 42 under the action of magnetic force, thereby driving the carrier 10 to move synchronously in the positive direction of the X-axis to actively calibrate the jitter of the carrier 10 in the positive direction of the X-axis. Specifically, by changing the current direction of the second coil 42, the carrier 10 is driven to move in the positive or negative direction of the X-axis. By controlling the current magnitude of the second coil 42, the moving distance of the carrier is controlled, so as to control the jitter correction of the camera body in the X-Y plane.

[0037] It should be noted that the situations where the second coil 42 is located in the negative direction of the X-axis, the positive direction of the Y-axis, and the negative direction of the Y-axis outside the carrier 10 are the same as the above description and will not be elaborated here. When the second coil 42 located on the positive side / negative side of the X-axis of the carrier 10 and the second coil 42 located on the positive side / negative side of the Y-axis of the carrier 10 are energized respectively, precise active movement of the carrier 10 in each quadrant of the X-Y plane can be achieved, so as to achieve precise active jitter calibration of the carrier 10 in the X-Y plane. It should be noted that the energization direction of the coil and the direction of the acting force of the magnetic monomer 20 are related to the current direction on the coil and the polarity of the magnetic monomer 20. The magnetism of the corresponding side of the magnetic monomer 20 to the coil is set according to actual needs so that the generated acting force meets the actual needs.

[0038] Please refer to Figures 2 - 4 、 Figure 6 、 Figure 7 As shown, the suspension mechanism 50 of this embodiment is used to suspend the carrier 10 and the first frame 31 together in the second frame 41. When the first coil 32 and the second coil assembly are not energized, the carrier 10 is in the initial state, and the suspension mechanism 50 constantly provides elastic forces to reset the carrier 10 in the Z-axis direction, X-axis direction, and Y-axis direction to the initial state respectively.

[0039] The suspension mechanism 50 and the four second coils 42 are respectively installed on the mounting seat 60. There is a certain gap between the second frame 41 and the mounting seat 60, and the housing 200 covers the mounting seat 60. Preferably, second embedding grooves 61 for fixing the second coils 42 are provided on four sides of the mounting seat 60. At this time, the second coils 42 are embedded and fixed on four sides of the mounting seat 60. Specifically, one second coil 42 is correspondingly fixed in the positive direction of the X-axis, negative direction of the X-axis, positive direction of the Y-axis, and negative direction of the Y-axis of the mounting seat 60.

[0040] Preferably, the suspension mechanism 50 includes two separately arranged suspension components 51. The two suspension components 51 are located on the same horizontal plane, and the positional relationship between the two suspension components 51 is separated by 180° with the central axis of the bearing seat as the axis.

[0041] The flexible circuit board 70 includes a first positive power supply terminal, a first negative power supply terminal, and four second power supply terminal components corresponding to the second coils 42 one by one. The first positive power supply terminal is electrically connected to one of the suspension components 51, the first negative power supply terminal is electrically connected to the other suspension component 51, the positive electrode of the first coil 32 is electrically connected to one of the suspension components 51, and the negative electrode is electrically connected to the other suspension component 51. The first coil 32 is electrically conductive with the flexible circuit board 70 through the suspension component 51. Electrical connection between the first coil 32 and the suspension component 51, and between the suspension component 51 and the flexible circuit board 70 can be achieved by direct soldering, without the need for wire routing, effectively simplifying the layout.

[0042] The second power supply terminal component includes a second positive power supply terminal and a second negative power supply terminal. The second positive power supply terminal is electrically connected to the positive electrode of the second coil 42, and the second negative power supply terminal is electrically connected to the negative electrode of the second coil 42. Electrical connection between the second coil 42 and the flexible circuit board 70 can be achieved by direct soldering, without the need for wire routing, effectively simplifying the layout.

[0043] The suspension component 51 includes a first cantilever component, a first fixing piece 512, a second cantilever member, and a second fixing piece 514 connected in sequence. The first cantilever component is respectively connected to the bearing platform 10 and the first fixing piece 512. The first fixing piece 512 is connected to the first frame 31, and the second fixing piece 514 is connected to the second frame 41. The first cantilever component is used to provide an elastic force for resetting the bearing platform 10 to the initial state along the Z-axis direction, and the second cantilever member is used to provide an elastic force for resetting the bearing platform 10 to the initial state along the X-axis direction and an elastic force for resetting the bearing platform 10 to the initial state along the Y-axis direction. Preferably, the first cantilever component, the first fixing piece 512, the second cantilever member, the second fixing piece 514, and the third fixing piece 515 are integrally structured to reduce the number of components of the suspension component 51 and effectively reduce the assembly process and assembly difficulty. Of course, in other embodiments, the first cantilever component, the first fixing piece 512, the second cantilever member, the second fixing piece 514, and the third fixing piece 515 can be discrete structures to meet more usage requirements, which will not be elaborated here.

[0044] Specifically, the first cantilever assembly includes two first cantilevers 511, which are arranged in a snake shape. The first cantilevers 511 are respectively connected to the carrier 10 and the first frame 31. Preferably, each corner of the upper surface of the carrier 10 is connected to a first cantilever 511. The four first cantilevers 511 jointly and stably suspend the carrier 10 within the first frame 31 to provide an elastic force for resetting the carrier 10 to its initial state along the Z-axis direction. When the first coil 32 pushes the carrier 10 to move forward or backward along the Z-axis, the elastic force of the first cantilever assembly needs to be overcome. This elastic force is used to limit the moving speed and moving distance of the carrier 10 along the Z-axis direction, avoiding damage to the camera body and focusing failure caused by excessive or over-limit movement, and effectively improving the stability of the focusing process.

[0045] The second cantilever member includes two second cantilevers 513. The second cantilevers 513 are connected to the first fixing piece 512. One of the two second cantilevers 513 is arranged outside the first frame 31 along the X-axis / Y-axis direction and is respectively connected to the first fixing piece 512 and the second fixing piece 514 to provide an elastic force for resetting the carrier 10 to its initial state along the X-axis / Y-axis direction. The suspension assembly 51 further includes a third fixing piece 515. The other of the two second cantilevers 513 is arranged outside the first frame 31 along the Y-axis / X-axis direction and is respectively connected to the second fixing piece 514 and the third fixing piece 515 to provide an elastic force for resetting the carrier 10 to its initial state along the Y-axis / X-axis direction.

[0046] At this time, each of the four side frames of the first frame 31 corresponds to a second cantilever 513. Under the elastic restriction of the four second cantilevers 513, when the second coil 42 is not energized, the first frame 31 is constantly restricted to the origin position in the X-Y plane. On the one hand, when the first frame 31 and the carrier 10 vibrate, the four second cantilevers 513 can limit the vibration amplitude and quickly eliminate the vibration, effectively achieving the anti-shake function; when external vibrations are transmitted from the second frame 41 to the first frame 31 and the carrier 10, the vibrations need to pass through the four second cantilevers 513 first. The four second cantilevers 513 can quickly limit the vibration amplitude and quickly cancel out the vibrations, effectively achieving the anti-shake function.

[0047] When the second coil 42 pushes the carrier 10 to move along the X-axis direction and / or the Y-axis direction, the elastic force of the second cantilever 513 assembly corresponding to the moving axis direction needs to be overcome. This elastic force is used to limit the moving speed and moving distance of the carrier 10 along the X-axis direction and / or the Y-axis direction, avoiding damage to the camera body and focusing failure caused by excessive or over-limit movement, and effectively improving the stability of the focusing process.

[0048] Furthermore, the suspension mechanism 50 further includes a third cantilever assembly. The third cantilever assembly is disposed on the other side of the carrier 10 relative to the first cantilever assembly. The third cantilever assembly is respectively connected to the carrier 10 and the first frame 31. Specifically, the third cantilever assembly includes four third cantilevers 52 that are evenly arranged in a clockwise or counterclockwise direction. The third cantilever 52 is arranged in a snake shape. The third cantilevers 52 are respectively connected to the carrier 10 and the first frame 31. Preferably, each corner of the lower surface of the carrier 10 is connected to a third cantilever 52. The four third cantilevers 52 jointly suspend the carrier 10 in a balanced manner within the first frame 31 to cooperate with the four first cantilevers 511 to further provide an elastic force for resetting the carrier 10 to the initial state in the Z-axis direction, so as to further improve the stability of the focusing process.

[0049] It should be noted that, in this embodiment, the first frame 31 and the second frame 41 are both described as rectangular ring structures. In other embodiments, the first frame 31 and the second frame 41 can both be other polygonal ring structures. At this time, a magnetic monomer 20 needs to be correspondingly arranged on each side frame of the first frame 31, and the respective cantilevers of the suspension mechanism 50 need to be adaptively modified, which will not be elaborated here.

[0050] Please refer to Figures 2 - 4 and Figure 6 As shown, the focusing and anti-shake structure 100 of this embodiment further includes a position detection component. The position detection component is used to detect the moving distance of the carrier 10 in the X-axis direction and the moving distance in the Y-axis direction. Specifically, the position detection component includes two position sensors 80. The position sensors 80 can be electronic components such as Hall sensors. One of the position sensors 80 is used to detect the moving distance of the carrier 10 in the X-axis direction, and the other position sensor 80 is used to detect the moving distance of the carrier 10 in the Y-axis direction. By accurately detecting the displacements of the carrier 10 in the X-axis direction and the Y-axis direction respectively through the position sensors 80, under the control of the controller, precise anti-shake control of the carrier 10 can be achieved.

[0051] Preferably, the flexible circuit board 70 further includes two third power supply terminal assemblies. Each position sensor 80 is electrically connected to one of the third power supply terminals. The position sensor 80 and the flexible circuit board 70 can be electrically connected by direct soldering, without wire routing, effectively simplifying the layout.

[0052] Combined with Figures 1 - 7, the first coil 32 of the present invention is conducted to generate magnetic induction with the magnetic component to drive the carrier stage 10 to move along the Z-axis direction, and the second coil assembly is conducted to generate magnetic induction with the magnetic component to drive the carrier stage 10 to move along the X-axis direction and / or along the Y-axis direction respectively. The suspension mechanism 50 constantly provides an elastic force to reset the carrier stage 10 to the initial state along the Z-axis direction, X-axis direction, and Y-axis direction respectively. The flexible circuit board 70 is arranged on the periphery of the second coil assembly and is electrically connected to the first coil 32 and the second coil assembly respectively. On the one hand, the carrier stage 10 is driven to move along the Z-axis direction by means of magnetic induction to achieve the focusing of the camera body. The driving method is simple and the driving structure occupies a small volume, which is suitable for miniaturizing and micro-miniaturizing the entire focusing and anti-shake structure 100. Moreover, the carrier stage 10 is subjected to an elastic force to be reset to the initial state along the Z-axis direction, effectively ensuring the stability of the focusing process. On the other hand, the carrier stage 10 and the first frame 31 are jointly suspended in the second frame 41, and the carrier stage 10 is subjected to an elastic force to be reset to the initial state along the X-axis direction and Y-axis direction, ensuring that the carrier stage 10 can effectively offset the jitter through the suspension mechanism 50. On the third hand, the carrier stage 10 is driven to move along the X-axis direction and Y-axis direction by means of magnetic induction, and the directional jitter correction of the carrier stage 10 on the X-Y plane is realized through the magnetic induction driving method, further improving the anti-shake performance of the focusing and anti-shake structure 100. On the fourth hand, both the second coil assembly and the flexible circuit board 70 are arranged on the periphery of the magnetic component, effectively reducing the overall height of the product. The flexible circuit board 70 can be electrically connected to the first coil 32 and the second coil assembly respectively by direct soldering, without wire routing, effectively simplifying the conductive process of the coil.

[0053] The foregoing disclosed is only the preferred embodiment of the present invention, and of course, it cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A focusing and anti-shake structure, characterized in that, it includes: a carrier platform for mounting a camera body; a magnetic component; a mounting seat; a first driving mechanism, including a first frame and a first coil looped around the carrier platform. The carrier platform is located within the first frame. The magnetic component is mounted on the first frame and distributed around the periphery of the carrier platform. The first coil corresponds to the magnetic component. When the first coil is energized, a magnetic induction is generated with the magnetic component to push the carrier platform to move along the Z-axis direction; a second driving mechanism, including a second frame and a second coil assembly. The first frame is located within the second frame. The second coil assembly is disposed around the periphery of the magnetic component and corresponds to the magnetic component. When the second coil assembly is energized, a magnetic induction is generated with the magnetic component to push the carrier platform to move along the X-axis direction and / or along the Y-axis direction respectively; a suspension mechanism, including two separately arranged suspension components for suspending the carrier platform and the first frame together within the second frame. When the first coil and the second coil assembly are not energized, the carrier platform is in an initial state. The suspension mechanism constantly provides an elastic force to reset the carrier platform to the initial state along the Z-axis direction, X-axis direction, and Y-axis direction respectively. The suspension component includes a first cantilever component, a first fixing piece, a second cantilever member, and a second fixing piece connected in sequence. The first cantilever component is respectively connected to the carrier platform and the first fixing piece. The first fixing piece is connected to the first frame. The second fixing piece is connected to the second frame; wherein, the first cantilever component includes at least one first cantilever. The first cantilever is respectively connected to the carrier platform and the first frame. All the first cantilevers together balance the suspension of the carrier platform within the first frame to provide an elastic force to reset the carrier platform to the initial state along the Z-axis direction; the second cantilever member includes two second cantilevers. The second cantilever is connected to the first fixing piece. One of the two second cantilevers is arranged outside the first frame along the X-axis / Y-axis direction and is respectively connected to the first fixing piece and the second fixing piece to provide an elastic force to reset the carrier platform to the initial state along the X-axis / Y-axis direction; the suspension component further includes a third fixing piece fixed on the mounting seat. One of the two second cantilevers is arranged outside the first frame along the Y-axis / X-axis direction and is respectively connected to the second fixing piece and the third fixing piece to provide an elastic force to reset the carrier platform to the initial state along the Y-axis / X-axis direction; a flexible circuit board is disposed around the periphery of the second coil assembly and is respectively electrically connected to the first coil and the second coil assembly.

2. The focusing and anti-shake structure according to claim 1, characterized in that, the suspension mechanism and the second coil assembly are respectively mounted on the mounting seat, and the flexible circuit board is looped around the side wall of the mounting seat.

3. The focusing and anti-shake structure according to claim 1, characterized in that, the flexible circuit board includes a first positive power supply terminal and a first negative power supply terminal. The first positive power supply terminal is electrically connected to one of the suspension components, and the first negative power supply terminal is electrically connected to the other suspension component. The positive electrode of the first coil is electrically connected to one of the suspension components, and the negative electrode is electrically connected to the other suspension component.

4. The focusing and anti-shake structure according to claim 3, characterized in that, The magnetic component includes two magnetic members, each of the magnetic members includes two magnet monomers arranged oppositely, one of the two magnetic members is arranged along the X-axis direction so that magnet monomers correspond to both sides of the carrier table along the X-axis direction respectively, and the other of the two magnetic members is arranged along the Y-axis direction so that magnet monomers correspond to both sides of the carrier table along the Y-axis direction respectively.

5. The focusing and anti-shake structure according to claim 4, characterized in that, the second coil assembly includes two second coil members, each of the second coil members includes two second coils, the two second coils in one of the two second coil members respectively correspond to the two magnet monomers arranged along the X-axis direction one by one, and the two second coils in the other of the two second coil members respectively correspond to the two magnet monomers arranged along the Y-axis direction one by one.

6. The focusing and anti-shake structure according to claim 5, characterized in that, the flexible circuit board further includes four second power supply terminal assemblies respectively corresponding to the second coils, each of the second power supply terminal assemblies includes a second positive power supply terminal and a second negative power supply terminal, the second positive power supply terminal is electrically connected to the positive pole of the second coil, and the second negative power supply terminal is electrically connected to the negative pole of the second coil.

7. The focusing and anti-shake structure according to claim 1, characterized in that, it further includes a position detection component, the position detection component is electrically connected to the flexible circuit board, and the position detection component is used for detecting the moving distance of the carrier table along the X-axis direction and the moving distance along the Y-axis direction.

8. A focusing and anti-shake camera, characterized in that, it includes a camera body, a housing and a focusing and anti-shake structure, the focusing and anti-shake structure is as described in any one of claims 1-7, and the focusing and anti-shake structure is arranged in the housing.

Images