Anti-shake structure and anti-shake camera

Abstract

The invention discloses an anti-shake structure and an anti-shake camera. The anti-shake structure comprises a base, a bracket, a bearing platform, a driving mechanism and a suspension mechanism. The bracket is in a frame-shaped structure and is mounted on the base. The bearing platform is located in the bracket and is used to mount a camera body. The driving mechanism comprises a magnetic component and a coil component that are relatively arranged. One of the magnetic component and the coil component is mounted on the bearing platform, and the other is mounted on the bracket or the base. The coil is turned on to generate magnetic induction with the magnetic component to push the bearing platform to move along the X-axis direction and / or along the Y-axis direction. The suspension mechanism is used to suspend the bearing platform in the bracket. When the coil component is not turned on, the bearing platform is in an initial state, and the suspension mechanism constantly provides elastic force to reset the bearing platform to the initial state along the X-axis direction and the Y-axis direction respectively. The structure of the invention is simple, the anti-shake performance is good, and the directional shake correction of the X-Y plane can be effectively realized.

Description

Technical Field

[0001] The present invention relates to the technical field of camera equipment, and in particular to an anti-shake structure and an 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 notebooks have ushered in rapid development. Micro camera modules are an important functional module of the above mobile electronic devices. In order to obtain better shooting effects, existing micro camera modules generally have focusing functions and anti-shake functions.

[0003] However, the anti-shake structure of existing micro camera modules is complex, the assembly process is cumbersome, and the cost of subsequent repair and maintenance is high, which greatly increases the manufacturing cost of the enterprise and the repair and maintenance cost of the user, and is not suitable for large-scale production applications. Summary of the invention

[0004] The object of the present invention is to provide an anti-shake structure and an anti-shake camera, which have a simple structure, good anti-shake performance, and can effectively realize directional shake correction in the XY plane.

[0005] In order to achieve the above purpose, the present invention discloses an anti-shake structure, which includes a base, a bracket, a bearing platform, a driving mechanism and a suspension mechanism, the bracket is a frame-shaped structure, and the bracket is installed on the base; the bearing platform is located in the bracket, and the bearing platform is used to install a camera body; the driving mechanism includes a magnetic component and a coil component that are relatively arranged, one of the magnetic component and the coil component is installed on the bearing platform, and the other is installed on the bracket or the base, the coil is turned on and generates magnetic induction with the magnetic component to push the bearing platform to move along the X-axis direction and / or along the Y-axis direction; the suspension mechanism is used to suspend the bearing platform in the bracket, when the coil component is not turned on, the bearing platform is in an initial state, and the suspension mechanism constantly provides elastic force to reset the bearing platform to the initial state along the X-axis direction and the Y-axis direction respectively.

[0006] Compared with the prior art, the carrier platform of the present invention is suspended on the bracket by a suspension mechanism, and the coil is turned on to generate magnetic induction with the magnetic component to push the carrier platform to move along the X-axis direction and / or along the Y-axis direction. It has a simple structure, and pushes the carrier platform to move along the X-axis direction and / or along the Y-axis direction by magnetic induction, thereby realizing directional jitter correction of the carrier platform on the XY plane. It has a simple structure, is easy to assemble and later repair and maintain, and better directional anti-shake performance can be obtained through a simple structure, which effectively reduces the manufacturing cost of the enterprise and the later repair and maintenance cost of the user, and is suitable for large-scale promotion and application.

[0007] Preferably, the suspension mechanism includes a plurality of suspension springs, all of which are arranged at intervals around the supporting platform, and the suspension springs are located between the bracket and the supporting platform, one side of the suspension spring is connected to the supporting platform, and the other side is connected to the bracket.

[0008] Preferably, the suspension mechanism includes four suspension springs, the suspension springs are arranged in an L-shape, and all the suspension springs are spaced apart to surround the suspension area.

[0009] Preferably, the suspension mechanism comprises two suspension springs, the suspension springs are arranged in a U-shape, and the two suspension springs are arranged opposite to each other and are spaced apart to form the suspension area.

[0010] Preferably, one of the magnetic component and the coil component is mounted on the supporting platform, and the other is mounted on the bracket.

[0011] Specifically, the magnetic component is installed on the side wall of the supporting platform, and the magnetic component includes two magnetic components, and the magnetic component includes two magnetic monomers arranged opposite to each other. One of the two magnetic components is arranged along the X-axis direction so that the two sides of the supporting platform along the X-axis direction correspond to the magnetic monomers respectively, and the other of the two magnetic components is arranged along the Y-axis direction so that the two sides of the supporting platform along the Y-axis direction correspond to the magnetic monomers respectively.

[0012] Specifically, the coil assembly is installed on the side wall of the bracket, and the coil assembly includes two coil components, and the coil components include two coils. The two coils in one of the two coil components correspond one-to-one to the two magnetic monomers arranged along the X-axis direction, and the two coils in the other of the two coil components correspond one-to-one to the two magnetic monomers arranged along the Y-axis direction.

[0013] Preferably, one of the magnetic component and the coil component is mounted on the bottom of the supporting platform, and the other is mounted on the base.

[0014] Preferably, the anti-shake structure further comprises a position detection component, and the position detection component is used to detect the moving distance of the supporting platform along the X-axis direction and the moving distance along the Y-axis direction.

[0015] Preferably, the support platform, the bracket, the coil and the base are coaxially arranged, and the central axes of the support platform, the bracket, the coil and the base are all arranged along the Z-axis direction.

[0016] Correspondingly, the present invention also discloses an anti-shake camera, which includes a camera body, a shell and the anti-shake structure as described above, wherein the anti-shake structure is arranged in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the anti-shake camera of the present invention;

[0018] Figure 2 is an exploded schematic diagram of the anti-shake camera of the present invention;

[0019] Figure 3 is a top view of the anti-shake camera of the present invention after the housing is removed;

[0020] Figure 4 yes Figure 3 Schematic diagram of the structure after the bearing platform is removed;

[0021] Figure 5 yes Figure 4 Schematic diagram of the structure after the bracket is removed;

[0022] Figure 6 It is a distribution diagram of the suspension shrapnel of the present invention;

[0023] Figure 7 It is another distribution diagram of the suspension shrapnel of the present invention. DETAILED DESCRIPTION

[0024] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0025] See also Figure 1 As shown, the anti-shake camera 1000 of this embodiment includes a camera body (not shown), a shell 200 and an anti-shake structure 100, wherein the anti-shake structure 100 is arranged in the shell 200, and the anti-shake structure 100 is used to adjust the jitter interference of the camera body to achieve the anti-shake function, and can also actively correct the jitter of the camera body on the XY plane to ensure that the camera body can work normally. The camera body here can be a focus camera or a fixed-focus camera. The specific structure of the anti-shake structure 100 of this embodiment will be described in detail below.

[0026] See also Figure 1-Figure 5 As shown, the anti-shake structure 100 of this embodiment includes a base 10, a bracket 20, a bearing platform 30, a driving mechanism and a suspension mechanism, wherein the bracket 20 is a frame-shaped structure, and the bracket 20 is installed on the base 10. The bearing platform 30 is located inside the bracket 20, and there is a certain gap between the bracket 20, and the bearing platform 30 is used to install the camera body. Specifically, the bearing platform 30 is provided with a mounting groove 31 matching the camera body, and the mounting groove 31 is a circular groove. The camera body is fixed on the bearing platform 30 through the mounting groove 31, and the base 10 is provided with an avoidance groove 11 matching the camera body, so that the operator can directly assemble, repair and maintain the camera body through the avoidance groove 11.

[0027] The driving mechanism includes a magnetic component and a coil component that are relatively arranged, wherein the magnetic component is mounted on the carrier 30, and the coil component is mounted on the bracket 20. The coil 50 is turned on to generate magnetic induction with the magnetic component to push the carrier 30 to move along the X-axis direction and along the Y-axis direction. The suspension mechanism is used to suspend the carrier 30 in the bracket 20. In a natural state, when the coil component is not turned on, the carrier 30 is in an initial state, and the suspension mechanism constantly provides an elastic force to reset the carrier 30 to the initial state along the X-axis direction and the Y-axis direction respectively. In other preferred embodiments, the positions of the magnetic component and the coil component can be swapped, that is, the coil component is mounted on the carrier 30, and the magnetic component is mounted on the bracket 20.

[0028] See also Figure 2-Figure 5 As shown, the magnetic component of this embodiment is installed on the side wall of the supporting platform 30, and the magnetic component includes two magnetic components, and the magnetic components include two magnetic monomers 40 arranged opposite to each other. One of the two magnetic components is arranged along the X-axis direction and installed on the two side surfaces of the supporting platform 30 along the X-axis direction, so that the two sides of the supporting platform 30 along the X-axis direction are respectively provided with magnetic monomers 40, and the other of the two magnetic components is arranged along the Y-axis direction and installed on the two side surfaces of the supporting platform 30 along the Y-axis direction, so that the two sides of the supporting platform 30 along the Y-axis direction are respectively provided with magnetic monomers 40.

[0029] Specifically, the carrier 30 is a rectangular structure, and the four sides of the carrier 30 are provided with first embedding grooves 32 for the magnetic monomers 40 to be embedded and fixed. At this time, the four sides of the carrier 30 are embedded with magnetic monomers 40, and preferably, the four magnetic monomers 40 are located at the same height. Assuming that the axis position of the carrier 30 is the origin of the XY plane, the positive direction of the X axis, the negative direction of the X axis, the positive direction of the Y axis, and the negative direction of the Y axis of the carrier 30 each correspond to a magnetic monomer 40.

[0030] Preferably, the coil assembly is mounted on the side wall of the bracket 20, and the bracket 20 and the carrier 30 are correspondingly arranged as a rectangular frame structure. Preferably, the carrier 30, the bracket 20, the coil 50 and the base 10 are coaxially arranged, and the central axes of the carrier 30, the bracket 20, the coil 50 and the base 10 are all arranged along the Z-axis direction. The coil assembly includes two coil components, and the coil components include two coils 50. The two coils 50 in one of the two coil components correspond to the two magnetic monomers 40 arranged along the X-axis direction, and the two coils 50 in the other of the two coil components correspond to the two magnetic monomers 40 arranged along the Y-axis direction.

[0031] Specifically, the four sides of the bracket 20 are provided with second embedding grooves 21 for the coil 50 to be embedded. At this time, the four sides of the bracket 20 are embedded with the coil 50. Preferably, the four coils 50 are located at the same height, and the height of the four coils 50 corresponds to the height of the four magnetic monomers 40. Assuming that the axis position of the bracket 20 coincides with the axis position of the carrier 30, the positive direction of the X axis, the negative direction of the X axis, the positive direction of the Y axis and the negative direction of the Y axis of the bracket 20 each correspond to a coil 50, and each coil 50 can generate magnetic induction with the magnetic monomer 40 arranged on the corresponding side of the carrier 30.

[0032] When a single coil 50 is turned on, the coil 50 generates current, and the coil 50 generates magnetic induction with the corresponding magnetic monomer 40. The magnetic monomer 40 can move relative to the coil 50 along the positive direction or negative direction of the X-axis / Y-axis under the action of magnetic force. The coil 50 and the magnetic monomer 40 arranged along the positive direction of the X-axis of the carrier 30 are used as an example for explanation. When the coil 50 is energized, it generates magnetic induction with the magnetic monomer 40. Since the coil 50 is fixed on the bracket 20 and the magnetic monomer 40 is fixed on the carrier 30, the carrier 30 can move relative to the bracket 20 along the XY plane. At this time, the carrier 30 can move relative to the coil 50 along the positive direction of the X-axis under the action of magnetic force, so as to actively calibrate the jitter of the carrier 30 in the positive direction of the X-axis. Specifically, by changing the direction of the current of the coil 50, the carrier 30 is pushed to move in the positive direction or reverse direction along the X-axis, and by controlling the current size of the coil 50, the moving distance of the carrier is controlled, thereby controlling the jitter correction of the camera body in the XY plane.

[0033] It is worth noting that the situation of the coil 50 and the magnetic monomer 40 arranged along the negative direction of the X-axis, the positive direction of the Y-axis, and the negative direction of the Y-axis of the carrier platform 30 is the same as the above description and will not be repeated here. When the coil 50 arranged along the positive direction of the X-axis / negative direction of the X-axis of the carrier platform 30 and the coil 50 along the positive direction of the Y-axis / negative direction of the Y-axis of the carrier platform 30 are respectively energized, the precise active movement of the carrier platform 30 in each quadrant of the XY plane can be achieved to achieve precise active jitter calibration of the carrier platform 30 in the XY plane. It should be noted that the energization direction of the coil 50 and the direction of the force applied to the magnetic monomer 40 are related to the direction of the current on the coil 50 and the polarity of the magnetic monomer 40. The magnetism of the magnetic monomer 40 corresponding to the side of the coil 50 is set according to actual needs so that the generated force meets actual needs.

[0034] In addition, the present embodiment installs the coil 50 and the magnetic monomer 40 in a side-arrangement manner, which can reduce the overall height of the anti-shake camera 1000 to meet the use requirements. When the overall width / length of the anti-shake camera 1000 is limited, the magnetic monomer 40 can be arranged on the bottom surface of the support platform 30, and the coil 50 can be arranged on the base 10 and correspond to the magnetic monomer 40 to reduce the overall width / length of the anti-shake camera 1000. At this time, the magnetic induction method of the magnetic monomer 40 and the coil 50 is the same as above, and will not be repeated here.

[0035] See also Figure 1-Figure 7 As shown, the suspension mechanism of this embodiment includes a plurality of suspension springs 60, all of which are arranged at intervals around the supporting platform 30, and the suspension springs 60 are located between the bracket 20 and the supporting platform 30. One side of the suspension spring 60 is connected to the supporting platform 30, and the other side is connected to the bracket 20. The four suspension springs 60 together suspend the supporting platform 30 in a balanced manner in the bracket 20 to provide elastic force for restoring to the initial state along the X-axis direction and the Y-axis direction respectively.

[0036] When the coil 50 pushes the supporting platform 30 to move along the X-axis direction and / or the Y-axis direction, it needs to overcome the elastic force of the suspension spring 60 corresponding to the axial direction. The elastic force is used to limit the moving speed and distance of the supporting platform 30 along the X-axis direction and / or the Y-axis direction, avoiding damage to the camera body and anti-shake failure due to excessive movement or exceeding the limit, thereby effectively improving the reliability of anti-shake.

[0037] Specifically, the suspension mechanism includes four suspension springs 60, and the suspension springs 60 are arranged in an L shape. Figure 6 As shown, the suspension areas 61 are enclosed at intervals, where the suspension areas 61 are rectangular areas and are coaxially arranged with the carrier platform 30, that is, the carrier platform 30 can be elastically acted upon by the suspension spring pieces 60 along the positive direction of the X-axis, the negative direction of the X-axis, the positive direction of the Y-axis and the negative direction of the Y-axis. The suspension spring pieces 60 have three functions. On the one hand, they realize the suspension effect within the bracket 20 of the carrier platform 30; on the other hand, when the coil 50 is not conducting, the carrier platform 30 is constantly restricted to the origin position of the XY plane; on still another hand, when the carrier platform 30 shakes, the four suspension spring pieces 60 can limit the shaking amplitude and quickly eliminate the shaking, thereby effectively achieving the anti-shake function.

[0038] Further, the carrier 30 protrudes toward the suspension spring 60 to form a first connection portion 33, and the suspension spring 60 is connected to the carrier 30 via the corresponding first connection portion 33. The bracket 20 protrudes toward the suspension spring 60 to form a second connection portion 22, and the suspension spring 60 is connected to the bracket 20 via the corresponding second connection portion 22. This realizes reliable connection between the suspension spring 60 and the bracket 20 and the carrier 30 respectively.

[0039] In another preferred embodiment, the suspension mechanism includes two suspension springs 60, and the suspension springs 60 are arranged in a U shape. Figure 7 The suspension area 61 is arranged opposite to each other and enclosed at intervals. Its function and effect are the same as those of the above four suspension springs 60, and will not be described in detail here. Of course, the suspension mechanism can also have other numbers of suspension springs 60. Under the condition of ensuring the suspension, restriction and anti-shake functions of the suspension mechanism, the specific setting of the suspension mechanism is not limited.

[0040] It is worth noting that the present embodiment is described with the bracket 20 and the support platform 30 both being rectangular structures. In other embodiments, the bracket 20 and the support platform 30 may both be other polygonal structures. In this case, a coil 50 / magnetic unit 40 needs to be provided on each side of the bracket 20 / support platform 30, and the suspension spring 60 of the suspension mechanism needs to be adaptively modified, which will not be elaborated here.

[0041] See also Figure 2 and Figure 5 As shown, the anti-shake structure 100 of this embodiment also includes a position detection component and a flexible circuit board 80. The position detection component is used to detect the moving distance of the carrier 30 along the X-axis direction and the moving distance along the Y-axis direction. Specifically, the position detection component includes two position sensors 70, which can be electronic components such as Hall sensors, one of which is used to detect the moving distance of the carrier 30 along the X-axis direction, and the other position sensor 70 is used to detect the moving distance of the carrier 30 along the Y-axis direction. The position sensor 70 accurately detects the displacement of the carrier 30 in the X-axis direction and the Y-axis direction respectively, and under the control of the controller, the carrier 30 can be accurately anti-shake controlled.

[0042] The flexible circuit board 80 is arranged on the side of the bracket 20. Preferably, the flexible circuit board 80 is wound around the side of the bracket 20 to reduce the space occupied by the traditional wiring and reduce the wiring process. The flexible circuit board 80 is used to electrically connect the coil 50, the camera body, the position detection component and other components. Of course, the flexible circuit board 80 can be arranged at other positions of the bracket 20 to adapt to other structures.

[0043] It is worth noting that in some embodiments, the support platform 30 only needs to have the ability to correct jitter along the X-axis direction or the Y-axis direction. In this case, it can be achieved by simply setting the magnetic unit 40 of the corresponding coil 50 along the X-axis direction or the Y-axis direction on the support platform 30, which will not be elaborated here.

[0044] Combination Figure 1-Figure 7The carrier platform 30 of the present invention is suspended on the bracket 20 through a suspension mechanism, and the coil 50 is turned on to generate magnetic induction with the magnetic component to push the carrier platform 30 to move along the X-axis direction and / or along the Y-axis direction. It has a simple structure and pushes the carrier platform 30 to move along the X-axis direction and / or along the Y-axis direction by magnetic induction, thereby realizing directional jitter correction of the carrier platform 30 on the XY plane. It has a simple structure and is easy to assemble and later repair and maintain. Moreover, better directional anti-shake performance can be obtained through a simple structure, which effectively reduces the manufacturing cost of the enterprise and the later repair and maintenance cost of the user, and is suitable for large-scale promotion and application.

[0045] The above disclosure is only the preferred embodiment of the present invention, which certainly 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 are still within the scope covered by the present invention.

Claims

1. An anti-shake structure, characterized in that: include: Base; A bracket, which is a frame-shaped structure, is installed on the base; A bearing platform, located in the bracket, and used for mounting a camera body; A driving mechanism, comprising a magnetic component and a coil component arranged opposite to each other, wherein the magnetic component is mounted on the side wall of the carrier platform, the magnetic component comprises two magnetic members, and the magnetic member comprises two magnetic monomers arranged opposite to each other, one of the two magnetic members is arranged along the X-axis direction so that the two sides of the carrier platform along the X-axis direction respectively correspond to the magnetic monomers, and the other of the two magnetic members is arranged along the Y-axis direction so that the two sides of the carrier platform along the Y-axis direction respectively correspond to the magnetic monomers, the coil component is mounted on the bracket or the base, and the coil is turned on 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; A suspension mechanism, used for suspending the carrier in the bracket, when the coil assembly is not turned on, the carrier is in an initial state, and the suspension mechanism constantly provides elastic forces for resetting the carrier to the initial state along the X-axis direction and the Y-axis direction respectively; The suspension mechanism includes a plurality of suspension springs, all of which are arranged at intervals around the circumference of the support platform, and the suspension springs are located between the bracket and the support platform, one side of the suspension spring is connected to the support platform, and the other side is connected to the bracket; The support platform protrudes toward the suspension spring to form a first connection portion, and the suspension spring is connected to the support platform via the corresponding first connection portion; the bracket protrudes toward the suspension spring to form a second connection portion, and the suspension spring is connected to the bracket via the corresponding second connection portion.

2. The anti-shake structure according to claim 1, characterized in that: The suspension mechanism comprises four suspension springs, which are arranged in an L shape, and all the suspension springs are spaced apart to form a suspension area.

3. The anti-shake structure according to claim 1, characterized in that: The suspension mechanism comprises two suspension springs, which are arranged in a U shape. The two suspension springs are arranged opposite to each other and are spaced apart to form a suspension area.

4. The anti-shake structure according to claim 1, characterized in that: The coil assembly is installed on the side wall of the bracket, and the coil assembly includes two coil components, and the coil components include two coils. The two coils in one of the two coil components correspond one-to-one to the two magnetic monomers arranged along the X-axis direction, and the two coils in the other of the two coil components correspond one-to-one to the two magnetic monomers arranged along the Y-axis direction.

5. The anti-shake structure according to claim 1, characterized in that: It also includes a position detection component, which is used to detect the moving distance of the support platform along the X-axis direction and the moving distance along the Y-axis direction.

6. An anti-shake camera, characterized in that: It comprises a camera body, a shell and an anti-shake structure, wherein the anti-shake structure is as described in any one of claims 1 to 5, and the anti-shake structure is arranged in the shell.

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