Adjustment mechanism and lens module
By using vertically setting the bent edges of the anti-shake circuit board and the flexible sheet in the lens module, the manufacturing process is simplified, the cost is reduced and the stiffness is improved, and the problems of high production costs and poor adjustment accuracy of the lens module are solved, and efficient and stable anti-shake function is achieved.
Patent Information
- Application Number
- PCT/CN2024/076046
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-08-14
AI Technical Summary
The production cost of existing lens modules is high and the adjustment accuracy is poor, mainly due to the complex manufacturing process of anti-shake circuit boards and flexible connecting boards, resulting in poor overall structural stiffness.
The bending edges of the anti-shake circuit board and the flexible sheet are arranged vertically to simplify the etching process, and connect through the three-dimensional folding structure to reduce production costs and increase stiffness, meeting the stiffness requirements of the x-direction, y-direction and z-direction.
While achieving low-cost production, it ensures the stability and adjustment accuracy of the lens module in the x-direction, y-direction and z-direction, and improves the assembly efficiency and the stability of the overall structure.
Smart Images
Figure CN2024076046_14082025_PF_FP_ABST
Abstract
Description
Adjustment mechanism and lens module Technical Field
[0001] The present application relates to the field of optical imaging technology, and in particular to an adjustment mechanism and a lens module. Background Art
[0002] The camera module of the prior art uses an anti-shake mechanism to help users obtain clear images. The physical driving methods of the lens module generally include spring type, ball type, and memory alloy type. The lens module includes an adjustment mechanism, which includes an anti-shake circuit board and a flexible connecting plate. The active edge of the anti-shake circuit board in the prior art is generally formed by stacking multiple layers of boards, and the active edge of the flexible connecting plate is mostly formed by an etching process, which makes the overall production cost of the lens module high and the overall structural rigidity poor, which in turn makes the overall stability of the lens module poor, thereby reducing the adjustment accuracy of the lens module.
[0003] Therefore, it is necessary to provide an adjustment mechanism and a lens module with low production cost and good adjustment accuracy. Technical issues
[0004] The purpose of this application is to provide an adjustment mechanism and a lens module. The adjustment mechanism has low production cost and good control accuracy. The application of the adjustment mechanism to the lens module reduces the overall production cost of the lens module and ensures that the lens module has good control and adjustment accuracy. Technical Solutions
[0005] The technical solution of this application is as follows:
[0006] In a first aspect, the present application provides an adjustment mechanism, including an anti-shake component; the anti-shake component includes an anti-shake circuit board and a flexible sheet connected to the anti-shake circuit board; the flexible sheet includes a first main body and a first bent edge arranged along the circumference of the first main body, and the first bent edge is arranged perpendicular to the plane of the first main body; the anti-shake circuit board includes a second main body, a second bent edge arranged along the circumference of the second main body, and an electrical connection part connected to one side of the second bent edge.
[0007] Preferably, the corresponding areas of the first bending edge and the second bending edge are all fitted together, or the first bending edge and the second bending edge are connected by a number of spaced fitting structures; the fitting structures are evenly distributed along the corresponding areas of the first bending edge and the second bending edge.
[0008] Preferably, the first body and the second body are coaxially arranged; the flexible sheet is arranged as a whole in a centrosymmetric manner with respect to the center of the first body, or the flexible sheet is arranged as a whole in an axisymmetric manner along either the x-direction or the y-direction.
[0009] Preferably, the flexible sheet also includes a first connecting block, which is symmetrically arranged on both sides of the first main body and connected to the first bending edge; the anti-shake circuit board also includes a second connecting block, which is symmetrically arranged on both sides of the second main body and connected to the second bending edge; the first connecting block and the second connecting block are arranged correspondingly.
[0010] Preferably, the first connecting block includes a first connecting portion connected to the first main body and a second connecting portion connected to the first bending edge; the second connecting portions are symmetrically arranged on both sides of the first connecting portion, separating the first bending edge into a first section and a second section, and a first notch is formed between the first section and the second section; after the second connecting block is connected to the second bending edge, the second bending edge is separated into a third section and a fourth section, and a second notch is formed between the third section and the fourth section; the first notch and the second notch are arranged correspondingly, and the first section and the third section are arranged correspondingly.
[0011] Preferably, the anti-shake component also includes an anti-shake bracket and a base plate; the anti-shake bracket is arranged in the area surrounded by the anti-shake circuit board, the flexible sheet is carried on the base plate, a gasket is provided between the base plate and the flexible sheet, the first bent edge is connected to the gasket, and the second bent edge is connected to the anti-shake bracket.
[0012] Preferably, the anti-shake bracket includes a connecting ring arranged in a square shape, a first connecting arm arranged in the corner area of the connecting ring, and a second connecting arm symmetrically arranged on both sides of the connecting ring; the second connecting arm is arranged through the first notch and the second notch, and the second connecting arm is provided with a connecting ear connected to the inner wall of the second bent edge.
[0013] Preferably, the electrical connection portion is arranged on the outside of the second bending edge and parallel to the second main body, the electrical connection portion is arranged on the third section, and a third notch is provided on the area of the first section corresponding to the electrical connection portion; the end of the third notch extends outward to form a third bending edge arranged parallel to the first main body, the third bending edges are connected by a first connecting piece, and the electrical connection portion is connected above the first connecting piece.
[0014] Preferably, the second section is provided with a fourth notch symmetrical to the third notch, and a fourth bent edge and a second connecting piece symmetrical to the third bent edge and the first connecting piece respectively; the fourth section is provided with a fifth bent edge extending outward and arranged parallel to the second main body in the area corresponding to the electrical connection part, and the fifth bent edge is connected to the top of the second connecting piece; the gasket is respectively connected to the bottom of the first connecting piece and the second connecting piece.
[0015] Preferably, the anti-shake component also includes an anti-shake coil, an anti-shake magnet and a shell; the anti-shake coil is arranged between the first connecting arm and the second connecting arm along the circumference of the connecting ring, and the anti-shake magnet is correspondingly arranged above the anti-shake coil; the shell and the bottom plate jointly form a accommodating space for accommodating the flexible sheet, anti-shake circuit board, anti-shake bracket, anti-shake coil and anti-shake magnet.
[0016] In a second aspect, the present application provides a lens module, which includes the adjustment mechanism and image sensing component as described above. Beneficial effects
[0017] The beneficial effects of this application are:
[0018] The first bent edge and the second bent edge of the adjustment mechanism described in the present application are respectively arranged perpendicularly relative to the plane folding of the first main body and the second main body. The first bent edge and the second bent edge adopt a three-dimensional folding structure, which saves the etching process, simplifies the part preparation process, improves assembly efficiency, and reduces production costs. At the same time, the bending structure of the edges of the flexible sheet and the anti-shake circuit board meets the stiffness requirements in the x-direction, y-direction and z-direction, ensuring that the z-axis has a stable support function while ensuring the anti-shake stability in the x-direction and y-direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] FIG1 is a schematic structural diagram of the anti-shake assembly of the present application;
[0020] FIG2 is an exploded schematic diagram of the anti-shake assembly of the present application;
[0021] FIG3 is a cross-sectional view of the anti-shake assembly of the present application;
[0022] FIG4 is a schematic structural diagram of a flexible sheet;
[0023] FIG5 is a schematic diagram of the structure of an anti-shake circuit board;
[0024] FIG6 is a schematic diagram of the internal structure of the anti-shake component;
[0025] FIG7 is a schematic diagram of the connection structure between the anti-shake bracket and the anti-shake circuit board.
[0026] Among them, 100-anti-shake component, 1-anti-shake circuit board, 11-second main body, 12-second bending edge, 121-third section, 122-fourth section, 123-second notch, 13-electrical connection part, 14-second connecting block, 2-flexible sheet, 21-first main body, 22-first bending edge, 221-first section, 222-second section, 223-first notch, 224-third notch, 225-third bending edge, 226-first connecting piece, 227-fourth notch, 228-fourth bending edge, 229-second connecting piece, 23-first connecting block, 231-first connecting part, 232-second connecting part, 3-anti-shake bracket, 31-connecting ring, 32-first connecting arm, 33-second connecting arm, 331-connecting ear, 4-bottom plate, 5-gasket, 6-anti-shake coil, 7-anti-shake magnetic steel, 8-shell, 200-image sensor component. Modes for Carrying Out the Invention
[0027] The present application will be further described below with reference to the accompanying drawings and implementation methods.
[0028] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.
[0029] When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. In this application, the descriptions such as "first", "second", "third", "fourth", etc. are only used for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated.
[0030] In the description of this application, the terms "upper", "lower", "top", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Example
[0031] Referring to Figures 1 to 3 , this application discloses an adjustment mechanism comprising an anti-shake assembly 100; the anti-shake assembly 100 comprises an anti-shake circuit board 1 and a flexible sheet 2 coupled to the anti-shake circuit board 1; the flexible sheet 2 comprises a first body 21 and a first bent edge 22 disposed along the circumference of the first body 21, the first bent edge 22 being perpendicular to the plane of the first body 21; the anti-shake circuit board 1 comprises a second body 11, a second bent edge 12 disposed along the circumference of the second body 11, and an electrical connection portion 13 connected to one side of the second bent edge 12. Preferably, the flexible sheet 2 is a metal spring sheet.
[0032] The first bent edge 22 and the second bent edge 12 of the adjustment mechanism described in the present application are respectively arranged perpendicularly relative to the plane folds of the first main body 21 and the second main body 11. The first bent edge 22 and the second bent edge 12 adopt a three-dimensional folding structure. The anti-shake circuit board 1 and the flexible sheet 2 can be formed at one time during the parts preparation process, which saves the etching process, simplifies the parts preparation process, improves assembly efficiency, and reduces production costs. At the same time, the bending structure of the edges of the flexible sheet 2 and the anti-shake circuit board 1 meets the stiffness requirements in the x-direction, y-direction and z-direction, ensuring that the z-axis has a stable support function while ensuring the anti-shake stability in the x-direction and y-direction.
[0033] In this embodiment, the x-direction, the y-direction, and the z-direction are spatially perpendicular to each other, and the z-direction is parallel to the optical axis direction of the lens module.
[0034] The corresponding areas of the first bent edge 22 and the second bent edge 12 are all fitted together, or the first bent edge 22 and the second bent edge 12 are connected by a plurality of spaced-apart fitting structures; the fitting structures are evenly distributed along the corresponding areas of the first bent edge 22 and the second bent edge 12 to ensure the uniformity of the overall stiffness of the connection structure between the anti-shake circuit board and the flexible sheet.
[0035] The first body 21 and the second body 11 are coaxially arranged; the flexible sheet 2 is arranged as a whole in a centrally symmetrical manner about the center of the first body 21, or the flexible sheet 2 is arranged as a whole in a centrally symmetrical manner along either the x-direction or the y-direction. Specifically, in some embodiments, the first body 21 and the second body 11 are coaxially arranged, and the flexible sheet 2 is arranged as a whole in a centrally symmetrical manner about the central axis of the first body 21 or the second body 11. In other embodiments, the first body 21 and the second body 11 are coaxially arranged, the electrical connection portion 13 is arranged along the x-direction, the anti-shake circuit board 1 is arranged as a centrally symmetrical manner along the x-direction, and the flexible sheet 2 is arranged as a whole in a centrally symmetrical manner along the x-direction. In other embodiments, the first body 21 and the second body 11 are coaxially arranged, the electrical connection portion 13 is arranged along the x-direction, the anti-shake circuit board 1 is arranged as a centrally symmetrical manner along the x-direction, and the flexible sheet 2 is arranged as a whole in a centrally symmetrical manner along the y-direction. The coordinated arrangement of the structural shapes of the flexible sheet 2 and the anti-shake circuit board 1 ensures the uniformity of the overall component structure, further ensuring the overall stability of the anti-shake assembly 100 and the stability of the anti-shake adjustment function.
[0036] As shown in Figures 4 and 5 , the flexible sheet 2 further includes first connecting blocks 23, which are symmetrically located on either side of the first body 21 and connected to the first bent edge 22. The anti-shake circuit board 1 further includes second connecting blocks 14, which are symmetrically located on either side of the second body 11 and connected to the second bent edge 12. The first connecting blocks 23 and the second connecting blocks 14 are disposed correspondingly. In this embodiment of the present application, the electrical connection portion 13 is disposed along the y-direction.
[0037] In some embodiments, the first connecting block 23 includes a first connecting portion 231 connected to the first main body 21 and a second connecting portion 232 connected to the first bending edge 22; the second connecting portion 232 is symmetrically arranged on both sides of the first connecting portion 231, separating the first bending edge 22 into a first section 221 and a second section 222, and a first notch 223 is formed between the first section 221 and the second section 222; after the second connecting block 14 is connected to the second bending edge 12, the second bending edge 12 is separated into a third section 121 and a fourth section 122, and a second notch 123 is formed between the third section 121 and the fourth section 122; the first notch 223 and the second notch 123 are correspondingly arranged, and the first section 221 and the third section 121 are correspondingly arranged. The structural setting of the first connecting block 23 is that the width of the first connecting portion 231 is greater than the width of the second connecting portion 232, which ensures a larger connection area between the first connecting portion 231 and the first main body 21, thereby ensuring the connection strength between the first connecting block 23 and the first main body 21, avoiding damage to the connection area between the first connecting block 23 and the first main body 21 during long-term use, and ensuring the durability of the flexible sheet 2.
[0038] As shown in Figures 2 and 6 , the anti-shake assembly 100 further includes an anti-shake bracket 3 and a base plate 4. The anti-shake bracket 3 is disposed within the area enclosed by the anti-shake circuit board 1. The flexible sheet 2 is supported on the base plate 4. A gasket 5 is disposed between the base plate 4 and the flexible sheet 2. The first bent edge 22 is connected to the gasket 5, and the second bent edge 12 is connected to the anti-shake bracket 3. In some embodiments, the gasket 5 is disposed corresponding to the edge area of the base plate 4 and includes a first gasket and a second gasket symmetrically arranged along the y-direction.
[0039] 6 and 7 , the anti-shake bracket 3 includes a connecting ring 31 in a square shape, a first connecting arm 32 provided in the corner area of the connecting ring 31, and second connecting arms 33 symmetrically provided on both sides of the connecting ring 31; the second connecting arm 33 is provided through the first notch 223 and the second notch 123, and the second connecting arm 33 is provided with a connecting ear 331 connected to the inner wall of the second bending edge 12.
[0040] As shown in Figures 2 to 6, the electrical connection portion 13 is located outside the second bent edge 12 and parallel to the second body 11. The electrical connection portion 13 is located on the third section 121. A third notch 224 is defined in the area of the first section 221 corresponding to the electrical connection portion 13. The end of the third notch 224 extends outward to form a third bent edge 225 parallel to the first body 21. The third bent edges 225 are connected by a first connecting piece 226, and the electrical connection portion 13 is connected above the first connecting piece 226. It should be noted that the "outward direction" refers to a direction away from the central axis of the first body 21.
[0041] Furthermore, the second section 222 is provided with a fourth notch 227 symmetrical to the third notch 224, as well as a fourth bent edge 228 and a second connecting piece 229 symmetrical to the third bent edge 225 and the first connecting piece 226, respectively. A fifth bent edge extending outward and parallel to the second body 11 is provided in the area of the fourth section 122 corresponding to the electrical connection portion 13. The fifth bent edge is connected above the second connecting piece 229. The gasket 5 is connected below the first connecting piece 226 and the second connecting piece 229, respectively, to securely connect the flexible sheet and, in turn, to securely support the flexible sheet and the anti-shake circuit board connection structure, thereby ensuring stable support in the z-direction of the anti-shake assembly 100. The term "upward" refers to a direction away from the base plate 4, and the term "downward" refers to a direction toward the base plate 4.
[0042] As shown in Figures 1 and 2, the anti-shake assembly 100 also includes an anti-shake coil 6, an anti-shake magnet 7, and a housing 8. The anti-shake coil 6 is arranged between the first connecting arm 32 and the second connecting arm 33 along the circumference of the connecting ring 31, and the anti-shake magnet 7 is correspondingly arranged above the anti-shake coil 6. The housing 8 and the bottom plate 4 together form a storage space for accommodating the flexible sheet 2, anti-shake circuit board 1, anti-shake bracket 3, anti-shake coil 6, and anti-shake magnet 7. Specifically, the anti-shake coil 6 is connected to the second body 11, and the anti-shake magnet 7 is connected to the housing 8.
[0043] The present application also discloses a lens module comprising the aforementioned adjustment mechanism and an image sensor assembly 200. As shown in FIG3 , the image sensor assembly 200 is disposed within the area enclosed by the anti-shake circuit board 1 and the anti-shake bracket 3; the image sensor assembly 200 is also disposed on the second body 11. During anti-shake adjustment, the anti-shake assembly 100 drives the image sensor assembly 200 to move, compensating for the displacement caused by shaking, thereby obtaining a clear image.
[0044] A first hole is defined in the center of the first body 21, and a second hole is defined in the center of the second body 11. The image sensor assembly 200 is provided with the first hole corresponding to the second hole for heat dissipation. Preferably, the first and second holes are coaxially arranged, with the cross-sectional area of the first hole being smaller than that of the second hole. A third hole is defined in the top of the housing 8, corresponding to the anti-shake bracket 3.
[0045] The above is only an implementation method of the present application. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present application, but these all fall within the scope of protection of the present application.
Claims
1. An adjustment mechanism, characterized in that: It includes an anti-shake component; the anti-shake component includes an anti-shake circuit board and a flexible sheet connected to the anti-shake circuit board; the flexible sheet includes a first main body and a first bent edge arranged along the circumference of the first main body, and the first bent edge is arranged perpendicular to the plane of the first main body; the anti-shake circuit board includes a second main body, a second bent edge arranged along the circumference of the second main body, and an electrical connection part connected to one side of the second bent edge.
2. The adjustment mechanism according to claim 1, characterized in that: The corresponding areas of the first bending edge and the second bending edge are all fitted and connected, or the first bending edge and the second bending edge are connected by a plurality of spaced fitting structures; the fitting structures are evenly distributed along the corresponding areas of the first bending edge and the second bending edge.
3. The adjustment mechanism according to claim 1, characterized in that: The first body and the second body are coaxially arranged; the flexible sheet is arranged as a whole in a centrally symmetrical manner with respect to the center of the first body, or the flexible sheet is arranged as a whole in an axisymmetric manner along either the x-direction or the y-direction.
4. The adjustment mechanism according to claim 3, characterized in that: The flexible sheet also includes a first connecting block, which is symmetrically arranged on both sides of the first main body and connected to the first bending edge; the anti-shake circuit board also includes a second connecting block, which is symmetrically arranged on both sides of the second main body and connected to the second bending edge; the first connecting block and the second connecting block are arranged correspondingly.
5. The adjustment mechanism according to claim 4, characterized in that: The first connecting block includes a first connecting portion connected to the first main body and a second connecting portion connected to the first bending edge; the second connecting portions are symmetrically arranged on both sides of the first connecting portion, dividing the first bending edge into a first section and a second section, and a first notch is formed between the first section and the second section; after the second connecting block is connected to the second bending edge, the second bending edge is divided into a third section and a fourth section, and a second notch is formed between the third section and the fourth section; the first notch and the second notch are arranged correspondingly, and the first section and the third section are arranged correspondingly.
6. The adjustment mechanism according to claim 5, characterized in that: The anti-shake component also includes an anti-shake bracket and a base plate; the anti-shake bracket is arranged in the area surrounded by the anti-shake circuit board, the flexible sheet is carried on the base plate, a gasket is provided between the base plate and the flexible sheet, the first bent edge is connected to the gasket, and the second bent edge is connected to the anti-shake bracket.
7. The adjustment mechanism according to claim 6, characterized in that: The anti-shake bracket includes a connecting ring arranged in a square shape, a first connecting arm arranged in the corner area of the connecting ring, and a second connecting arm symmetrically arranged on both sides of the connecting ring; the second connecting arm is arranged through the first notch and the second notch, and the second connecting arm is provided with a connecting ear connected to the inner wall of the second bent edge.
8. The adjustment mechanism according to claim 6, characterized in that: The electrical connection portion is arranged outside the second bending edge and parallel to the second main body. The electrical connection portion is arranged on the third section. A third notch is provided on the area of the first section corresponding to the electrical connection portion; the end of the third notch extends outward to form a third bending edge arranged parallel to the first main body. The third bending edges are connected by a first connecting piece, and the electrical connection portion is connected above the first connecting piece.
9. The adjustment mechanism according to claim 8, characterized in that: The second section is provided with a fourth notch symmetrical to the third notch, and a fourth bent edge and a second connecting piece symmetrical to the third bent edge and the first connecting piece respectively; the fourth section is provided with a fifth bent edge extending outward and arranged parallel to the second main body in an area corresponding to the electrical connection part, and the fifth bent edge is connected to the top of the second connecting piece; the gaskets are respectively connected to the bottom of the first connecting piece and the second connecting piece.
10. The adjustment mechanism according to claim 6, characterized in that: The anti-shake component also includes an anti-shake coil, an anti-shake magnet and a shell; the anti-shake coil is arranged between the first connecting arm and the second connecting arm along the circumference of the connecting ring, and the anti-shake magnet is correspondingly arranged above the anti-shake coil; the shell and the bottom plate jointly form a accommodating space for accommodating the flexible sheet, anti-shake circuit board, anti-shake bracket, anti-shake coil and anti-shake magnet.
11. A lens module, characterized in that: The lens module includes the adjustment mechanism and image sensing component described in any one of claims 1 to 10.
Citation Information
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