CN109302556B - Anti-shake structure, anti-shake system and image pickup device with anti-shake system - Google Patents

Abstract

The application provides an anti-shake structure, an anti-shake system and an image pickup device with the same, wherein the anti-shake structure comprises: an SMA wire; the SMA wire is fixedly connected with the OIS reed; an OIS substrate; the pressing piece assembly is partially arranged on the OIS substrate, and is electrically connected with the SMA wire, so that the SMA wire contracts or expands under the action of current and drives at least part of the OIS reed to move along a preset direction; the OIS support is arranged on the OIS substrate and is used for supporting the OIS reed; and the OIS base is arranged on one side of the OIS substrate far away from the OIS support and is connected with the OIS substrate. According to the technical scheme provided by the application, the problem of fuzzy photo taking caused by hand shake in the shooting process can be solved.

Description

Anti-shake structure, anti-shake system and camera device having the same

Technical Field

The present invention relates to the technical field of camera equipment, and in particular to an anti-shake structure, an anti-shake system and a camera device having the same.

Background Art

At present, when taking photos with a mobile phone, sometimes the photos taken are blurry, that is, the pictures taken are not clear enough, or even ghosting or blurry. These reasons, in addition to occasional loss of focus (i.e. the camera fails to focus properly), are largely caused by slight shaking when the scene is exposed.

Generally speaking, this slight shaking phenomenon often occurs when holding the camera, which will cause the lens of the camera device to deviate, resulting in the degradation of the image quality captured by the image sensor. Therefore, in recent years, there has been a relatively large demand for the development of anti-shake technology functions. In this context, the number of proposals for OIS (short for optical image stabilization system) optical anti-shake functions has also increased. Its main function is to control the translation of the lens relative to the image sensor to offset the image deviation caused by hand shaking.

However, the stability and reliability of the anti-shake structure in the prior art are low, and it is unable to effectively solve the problem of blurry photos caused by hand shaking during shooting.

Summary of the invention

The present invention provides an anti-shake structure, an anti-shake system and a camera device having the same, so as to solve the problem of blurry photos caused by hand shaking during shooting in the prior art.

According to a first aspect of the present invention, an anti-shake structure is provided, comprising: an SMA wire; an OIS spring, the SMA wire being fixedly connected to the OIS spring; an OIS substrate; a pressing sheet assembly, the pressing sheet assembly being partially arranged on the OIS substrate, the pressing sheet assembly being electrically connected to the SMA wire, so that the SMA wire contracts or expands under the action of an electric current and drives at least a portion of the OIS spring to move in a predetermined direction, the pressing sheet assembly having two groups of input terminals and two groups of ground terminals, wherein one group of input terminals and one group of ground terminals are located on one side of the pressing sheet assembly, and the other group of input terminals and the other group of ground terminals are located on the other side of the pressing sheet assembly; an OIS support, arranged on the OIS substrate, the OIS support being used to support the OIS spring; an OIS base, arranged on a side of the OIS substrate away from the OIS support and connected to the OIS substrate; wherein the OIS spring is used to be connected to an AF motor, so that when at least a portion of the OIS spring moves driven by the SMA wire, the AF motor is driven to move in a predetermined direction.

Furthermore, the SMA wire includes a plurality of SMA wires, and the plurality of SMA wires are arranged along the periphery of the OIS spring sheet, one end of each SMA wire is connected to the OIS spring sheet, and the other end of each SMA wire is a fixed end.

Furthermore, the pressing sheet assembly includes a plurality of wire conducting terminals and a plurality of wire conducting parts, and the plurality of wire conducting terminals and the plurality of wire conducting parts are arranged in one-to-one correspondence, so that each SMA wire is conductively connected to the corresponding wire conducting terminal through the wire conducting part.

Furthermore, there are four SMA wires, which are respectively a first SMA wire, a second SMA wire, a third SMA wire and a fourth SMA wire; wherein the first SMA wire and the third SMA wire are arranged in parallel, the second SMA wire and the fourth SMA wire are arranged in parallel, and the first SMA wire and the second SMA wire are arranged vertically.

Furthermore, the OIS reed includes a reed body and a flexure arm, one end of the flexure arm is connected to the reed body, and the other end of the flexure arm is connected to the pressing sheet assembly. The reed body is movably arranged on the OIS support, and the reed body can move in a predetermined direction.

Further, the pressing plate assembly includes: an upper pressing plate, which is arranged on a side of the OIS spring plate away from the OIS support, and the upper pressing plate has an upper clamping groove, one end of the SMA wire is fixed in the upper clamping groove, and the upper clamping groove is formed by bending the extension arm of the upper pressing plate, and the extension arm includes a first bending portion and a second bending portion, the first bending portion is provided with an upper concave portion, and the second bending portion is provided with an upper convex portion, the upper concave portion and the upper convex portion are correspondingly arranged, and the upper concave portion cooperates with the upper convex portion to fix the SMA wire; a lower pressing plate, which is provided On the OIS substrate, the lower pressing plate is on the same side as the OIS support, the flexure arm is fixedly connected to the lower pressing plate, the lower pressing plate has a claw, a lower wire clamping groove is arranged on the claw, the other end of the SMA wire is fixed in the lower wire clamping groove, the lower wire clamping groove is formed by bending the extension arm of the lower pressing plate, the extension arm of the lower pressing plate includes a third bending portion and a fourth bending portion, the third bending portion is provided with a lower concave portion, the fourth bending portion is provided with a lower convex portion, the lower concave portion and the lower convex portion are arranged correspondingly, and the lower concave portion and the lower convex portion cooperate to fix the SMA wire.

Furthermore, the spring body is a polygonal plate body, and the spring body has a first mounting portion and a second mounting portion, and the first mounting portion and the second mounting portion are located on two opposite diagonals of the spring body; the pressing plate assembly includes two upper pressing plates, one upper pressing plate is located on the first mounting portion, and the other upper pressing plate is located on the second mounting portion, and the middle part of the spring body has a through hole, and the side wall of the through hole of the spring body is provided with a positioning avoidance opening.

Furthermore, bosses are provided on both the first mounting portion and the second mounting portion, and a groove is provided on the side of the upper pressing plate facing the spring body, and the bosses cooperate with the grooves to limit positions.

Furthermore, there are multiple SMA wires, and each upper pressing plate is provided with two upper wire clamping grooves, and each upper wire clamping groove is used to install a corresponding SMA wire; two claws are provided on the lower pressing plate, and each claw is provided with two lower wire clamping grooves, and the two claws are located at two opposite corners of the lower pressing plate. The four lower wire clamping grooves are arranged in a one-to-one correspondence with the four upper wire clamping grooves, one end of the SMA wire is connected to the lower wire clamping groove, and the other end of the SMA wire is connected to the upper wire clamping groove.

Furthermore, the lower pressing plate includes a first input conduction part, a second input conduction part, a third input conduction part, a fourth input conduction part and two grounding conduction parts which are arranged at intervals from each other; the first input conduction part, the second input conduction part, the third input conduction part and the fourth input conduction part each have a lower wire clamping groove and an input terminal, the lower wire clamping groove of the first input conduction part and the lower wire clamping groove of the second input conduction part are a group, the lower wire clamping groove of the third input conduction part and the lower wire clamping groove of the fourth input conduction part are a group, the two groups of lower wire clamping grooves are located at two opposite corners of the lower pressing plate, each grounding conduction part has a grounding terminal, the OIS spring includes two flexure arms, the two flexure arms are arranged in one-to-one correspondence with the two grounding conduction parts, the first input conduction part, the fourth input conduction part and one of the grounding conduction parts form a group of power-on circuits, the second input conduction part, the third input conduction part and the fourth input conduction part form a group of power-on circuits with the other grounding conduction part, and the surfaces of the first input conduction part, the second input conduction part, the third input conduction part, the fourth input conduction part and the two grounding conduction parts are all on the same plane.

Furthermore, the first input conducting part, the second input conducting part, the third input conducting part, the fourth input conducting part and the two ground conducting parts are arranged in a ring shape, and the second input conducting part and the fourth input conducting part are both provided with avoidance grooves for avoiding the flexure arms.

Furthermore, each grounding conductive part is provided with a welding groove, which is located on the back side of the connection between the grounding conductive part and the flexure arm. A welding avoidance opening is provided on the OIS substrate, which is arranged corresponding to the welding groove. Each grounding conductive part is also provided with a warping avoidance opening, which is located between the welding groove and the grounding terminal.

Furthermore, two end pin sockets are provided on the OIS base, and the two end pin sockets are correspondingly arranged on two sides of the OIS base. The input terminals of the first input conduction part and the second input conduction part and the grounding terminal of one of the grounding conduction parts are inserted into one of the end pin sockets, and the input terminals of the third input conduction part and the fourth input conduction part and the grounding terminal of the other grounding conduction part are inserted into the other end pin socket.

Furthermore, a baffle is provided on the OIS base, and the baffle is used to limit the position of the flexible circuit board. The baffle is provided with glue dispensing holes and an overflow glue storage tank.

Furthermore, the OIS support includes a supporting portion and extending portions located on both sides of the supporting portion, the supporting portion is used to support the OIS reed, and the extending portion is used to be connected to the OIS substrate.

Furthermore, the entire surface of the OIS substrate is coated with an insulating layer.

Furthermore, the end surface of the support portion of the OIS support is provided with a DLC coating.

According to a second aspect of the present invention, an anti-shake system is provided. The anti-shake system includes an AF motor and an anti-shake structure. The anti-shake structure is the anti-shake structure provided above. The AF motor is arranged on an OIS reed of the anti-shake structure.

Furthermore, the anti-shake system also includes a shielding cover, which is arranged on the AF motor and the anti-shake structure. The end surface of the shielding cover is provided with a lens placement hole, and the side wall of the lens placement hole is also provided with a avoidance opening.

Furthermore, the AF motor includes a shell, a winding carrier, a magnet assembly and a flexible circuit board. The winding carrier is arranged in the shell, the magnet assembly is arranged between the winding carrier and the shell, the flexible circuit board is arranged on the shell, the flexible circuit board is electrically connected to the winding carrier, the end face of the shell is provided with a through hole, and a plurality of glue dispensing avoidance openings are arranged in a ring on the side wall of the through hole of the shell, a flexible circuit board avoidance opening is opened on one of the side walls of the shell, and the flexible circuit board is partially located in the flexible circuit board avoidance opening.

Furthermore, the AF motor also includes: an upper spring, which is arranged in the outer shell and connected to the upper end surface of the winding carrier; a frame, which is arranged in the outer shell and is located between the upper spring and the outer shell; a lower spring and a motor base located below the winding carrier, the lower spring is arranged on the motor base, the lower spring is used to support the lower end surface of the winding carrier, the outer shell is arranged on the motor base to form an accommodating space between the two, the winding carrier, the magnet assembly, the upper spring, the frame and the lower spring are all located in the accommodating space, a snap-fitting convex edge is arranged at the bottom end of the outer shell, the motor base has four extended end corners, the four extended end corners are arranged at intervals from each other, so that a snap-fitting groove is formed between two adjacent extended end corners, and the snap-fitting convex edges are correspondingly arranged in the snap-fitting groove so that the outer shell and the motor base are embedded together.

Furthermore, one of the side walls of the shell serves as an installation positioning surface, and no magnet assembly is arranged at the installation positioning surface. The side wall of the shell adjacent to the installation positioning surface is a terminal lead-out surface. The flexible circuit board includes a terminal lead-out section and a positioning section connected to each other. There is an angle between the terminal lead-out section and the positioning section. The terminal lead-out section is arranged on the terminal lead-out surface, and the positioning section is arranged on the installation positioning surface.

Furthermore, a limiting groove is provided on the side wall surface of the frame facing the positioning section, and a lower spring avoidance opening is provided at the bottom of the side wall. The positioning section is embedded in the limiting groove of the frame. The structure of the limiting groove is adapted to the shape of the positioning section. The inner wall of the shielding cover cooperates with the motor base and the OIS base to limit the position of the flexible circuit board.

Furthermore, a terminal pin is provided on the motor base, the positioning section of the flexible circuit board has a solder hole, one end of the terminal pin is electrically connected to the lower spring, the other end of the terminal pin is connected to the solder hole on the flexible circuit board, and the lower spring is electrically connected to the winding carrier.

Furthermore, two claw avoidance recesses and two base bonding protrusions are provided at the bottom of the extended end angle of the motor base. The two claw avoidance recesses correspond to the claw settings of the anti-shake structure, and the two base bonding protrusions correspond to the upper pressure plate settings of the anti-shake structure. A limiting protrusion is also provided on the bottom surface of the motor base, and the limiting protrusion is engaged with the OIS spring sheet of the anti-shake structure.

Furthermore, a plurality of limit posts are arranged on the motor base, and the plurality of limit posts are arranged in a ring shape on the side of the motor base, and the plurality of limit posts are used to limit the displacement of the winding carrier.

Furthermore, an end corner boss is provided on the extended end corner of each motor base, the end corner boss is matched with the inner wall of the shell, and the end corner boss is used to limit the displacement of the shell.

According to a third aspect of the present invention, there is provided a camera device, comprising a camera body and an anti-shake structure for performing anti-shake processing on the camera body, wherein the anti-shake structure is the anti-shake structure provided above.

By applying the technical solution of the present invention, the anti-shake structure of the present invention realizes the anti-shake compensation function by selecting an SMA wire with a shape memory function. Specifically, the SMA wire is fixed on the OIS spring; the OIS spring is arranged on the OIS support, and the SMA wire is electrically connected to the pressing assembly, so that the SMA wire contracts or expands under the action of the current and drives at least part of the OIS spring to move along a predetermined direction; wherein the OIS spring is used to connect with the AF motor. The anti-shake structure adjusts the current and uses the heat shrinkage and cold expansion characteristics of the SMA wire to change the length of the SMA wire, so that at least part of the OIS spring is adjusted along the X-axis and/or the Y-axis, and then the pulling force of the SMA wire is used to complete the purpose of driving the AF motor, so that the AF motor is quickly adjusted along the X-axis and/or the Y-axis, so as to achieve the purpose of micro-distance movement of the entire lens, change the focal length, and achieve a clear image.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

FIG1 shows an exploded view of an anti-shake structure provided according to an embodiment of the present invention;

FIG2 shows a schematic diagram of assembling an anti-shake structure provided in an embodiment of the present invention;

3 shows a schematic diagram of the assembly of an upper pressing plate, an OIS spring plate, a lower pressing plate, an OIS support, and an OIS base in an anti-shake structure provided according to an embodiment of the present invention;

FIG4 shows a schematic structural diagram of the OIS reed in FIG1 ;

FIG5 shows a schematic structural diagram of the upper pressing sheet in FIG1 ;

FIG6 shows a schematic structural diagram of the bottom surface of the upper pressing sheet in FIG5 ;

FIG7 shows a schematic structural diagram of the lower pressing plate in FIG1 ;

FIG8 shows a schematic structural diagram of the bottom surface of the lower pressing plate in FIG7 ;

FIG9 shows a schematic structural diagram of the OIS base in FIG1 ;

FIG. 10 is a schematic diagram showing an assembly of the OIS base, the lower pressing sheet, and the flexible circuit board in FIG. 1 ;

FIG11 is a schematic structural diagram of the OIS support in FIG1 ;

FIG12 is a schematic diagram showing an assembly of the OIS support and the OIS substrate in FIG1 ;

FIG13 shows an exploded view of an AF motor of an anti-shake system according to yet another embodiment of the present invention;

FIG14 is a schematic diagram showing an assembly of an anti-shake system provided according to an embodiment of the present invention;

FIG15 shows a schematic structural diagram of the housing in FIG13 ;

FIG16 shows a schematic structural diagram of the winding carrier in FIG13 ;

FIG17 shows a schematic structural diagram of the upper spring in FIG13 ;

FIG18 shows a schematic structural diagram of the framework in FIG13 ;

FIG19 shows a schematic diagram of the assembly of the housing, frame, upper spring, and flexible circuit board in FIG13 ;

FIG20 shows a schematic diagram of the assembly of the lower spring and the winding carrier in FIG13 ;

FIG21 shows a schematic structural diagram of the motor base in FIG13 ;

FIG22 shows a schematic diagram of the assembly of the lower spring and the motor base in FIG13 ;

FIG23 shows a schematic diagram of the bottom surface of the motor base;

FIG24 shows a schematic diagram of the assembly of the housing, the motor base and the flexible circuit board in FIG13 ;

FIG25 is a schematic diagram showing an assembly diagram of a shielding cover in an anti-shake system according to an embodiment of the present invention;

FIG. 26 shows a cross-sectional view of an anti-shake system provided according to an embodiment of the present invention.

The above drawings include the following reference numerals:

10. SMA wire; 20. OIS spring; 21. Spring body; 21a. Boss; 21b. Positioning avoidance; 22. Flexure arm; 30. OIS substrate; 30a. Welding avoidance; 40. OIS support; 50. OIS base; 51. End pin connector; 52. Baffle; 52a. Glue dispensing hole; 52b. Glue storage tank for overflow glue; 60. Upper pressing plate; 61. Upper wire clamping groove; 62. Groove ; 70, lower pressing plate; 70a, claw; 71, lower clamping groove; 721, first input conducting part; 722, second input conducting part; 723, third input conducting part; 724, fourth input conducting part; 725, grounding conducting part; 725a, warping avoidance opening; 73, input terminal; 74, grounding terminal; 75, avoidance groove; 76, welding groove; 77, positioning avoidance opening; 78, overflow glue storage tank;

1. Anti-shake structure; 2. AF motor; 210. Shell; 211. Flanging; 212. Installation positioning surface; 213. Terminal lead surface; 214. Glue dispensing avoidance opening; 220. Winding carrier; 221. Plug-in recess; 230. Magnet assembly; 240. Flexible circuit board; 241. Terminal lead section; 242. Positioning section; 243. Solder hole; 250. Upper spring; 251. First fool-proof structure; 252. Installation groove; 260. Frame; 261. Second fool-proof structure; 262. Limiting groove; 270. Lower spring; 280. Motor base; 280a. Clamping claw avoidance recess; 280b. Limiting convex ring; 280c. Limiting column; 280d. End angle boss; 280e. Base bonding convex part; 281. Terminal pin; 3. Shielding cover; 3a. Avoidance opening.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

As shown in FIGS. 1 to 3 , an embodiment of the present invention provides an anti-shake structure, which includes: an SMA wire 10, an OIS spring 20, an OIS substrate 30, a pressing assembly, an OIS support 40, and an OIS base 50. The SMA wire 10 is fixedly connected to the OIS spring 20. The pressing assembly is partially arranged on the OIS substrate 30, and the pressing assembly is electrically connected to the SMA wire 10, so that the SMA wire 10 contracts or expands under the action of the current and drives at least part of the OIS spring 20 to move along a predetermined direction. The pressing assembly has two groups of input terminals 73 and two groups of ground terminals 74, wherein one group of input terminals 73 and one group of ground terminals 74 are located on one side of the pressing assembly, and the other group of input terminals 73 and the other group of ground terminals 74 are located on the other side of the pressing assembly; the OIS support 40 is arranged on the OIS substrate 30, and the OIS spring 20 is arranged on the OIS support 40, and the OIS spring 20 is supported by the OIS support 40. The OIS base 50 is arranged on a side of the OIS substrate 30 away from the OIS support 40 and connected to the OIS substrate 30. The OIS reed 20 is used to connect to the AF motor so that at least part of the OIS reed 20 drives the AF motor to move along a predetermined direction when it moves driven by the SMA wire 10. The SMA wire is a nickel-titanium alloy material, and SMA is the abbreviation of Shape Memory Alloy, which means "shape memory alloy". The SMA wire has the characteristics of thermal contraction and cold expansion. When current flows into the SMA wire, the SMA wire begins to contract due to heat, overcoming the side elastic force; when the current is cut off, the bias elastic force overcomes the wire force of the SMA wire and begins to cold expand. Specifically, the OIS substrate 30, the pressing sheet assembly, the OIS support 40 and the OIS base 50 can be a split structure, or can be selectively combined into an integrated structure, and the structure can be combined and adjusted as needed. In this embodiment, the OIS substrate 30, the pressing sheet assembly, the OIS support 40 and the OIS base 50 are all split structures.

The anti-shake structure of the present invention realizes the anti-shake compensation function by selecting the SMA wire 10 with shape memory function. Specifically, the SMA wire 10 is fixed on the OIS spring 20; the OIS spring 20 is arranged on the OIS support 40, and the SMA wire 10 is electrically connected to the pressing plate assembly, so that the SMA wire 10 contracts or expands under the action of the current and drives at least part of the OIS spring 20 to move along a predetermined direction; wherein the OIS spring 20 is used to connect with the AF motor. The anti-shake structure adjusts the current and uses the heat shrinkage and cold expansion characteristics of the SMA wire 10 to change the length of the SMA wire 10, so that at least part of the OIS spring 20 is adjusted along the X-axis and/or the Y-axis, and then the purpose of driving the AF motor is completed through the pulling force of the SMA wire 10, so that the AF motor is quickly adjusted along the X-axis and/or the Y-axis, so as to achieve the purpose of micro-distance movement of the entire lens, change the focal length, and achieve a clear image.

In addition, in this embodiment, a structure of a pressing plate assembly, an OIS support 40 and an OIS base 50 is adopted, the pressing plate assembly is used to fix and connect the SMA wire 10, and the OIS support 40 is used to support the OIS spring 20. This makes the structure of each component relatively simple, which is convenient for production and processing.

In this embodiment, the directions of the X-axis and the Y-axis are as shown in FIG. 2 , and the Z-axis direction is a direction perpendicular to the X-axis and the Y-axis.

Specifically, the SMA wire has low power, high rigidity and stability, and can improve the reaction rate of the device.

The SMA wire 10 includes a plurality of SMA wires 10, which are arranged along the periphery of the OIS spring sheet 20, one end of each SMA wire 10 is connected to the OIS spring sheet 20, and the other end of each SMA wire 10 is a fixed end. Specifically, in this embodiment, the other end of the SMA wire 10 is fixed to the OIS substrate 30 through the lower pressing sheet 70. In this way, when the SMA wire 10 is deformed, only the end connected to the OIS spring sheet 20 can change position.

The pressing sheet assembly includes a plurality of wire conducting terminals and a plurality of wire conducting parts, and the plurality of wire conducting terminals and the plurality of wire conducting parts are arranged in one-to-one correspondence, so that each SMA wire 10 is electrically connected to the corresponding wire conducting terminal through the wire conducting part.

Specifically, there are four SMA wires 10, which are respectively a first SMA wire, a second SMA wire, a third SMA wire and a fourth SMA wire; wherein the first SMA wire and the third SMA wire are arranged in parallel, the second SMA wire and the fourth SMA wire are arranged in parallel, and the first SMA wire and the second SMA wire are arranged vertically.

In this embodiment, as shown in FIG. 2 , the stretching direction of the first SMA wire and the third SMA wire is the X-axis direction, and the stretching direction of the second SMA wire and the fourth SMA wire is the Y-axis direction.

As shown in FIG4 , specifically, the OIS reed 20 includes a reed body 21 and a flexure arm 22, one end of the flexure arm 22 is connected to the reed body 21, and the other end of the flexure arm 22 is connected to the pressing assembly, and the reed body 21 is movably arranged on the OIS support 40, and the reed body 21 can move in a predetermined direction, that is, along the X-axis and Y-axis directions.

As shown in Figures 5 to 8, in this embodiment, the pressing plate assembly includes: an upper pressing plate 60 and a lower pressing plate 70. The upper pressing plate 60 is arranged on the side of the OIS spring 20 away from the OIS support 40, and the upper pressing plate 60 has an upper clamping groove 61, and one end of the SMA wire 10 is fixed in the upper clamping groove 61; the lower pressing plate 70 is arranged on the OIS substrate 30, the lower pressing plate 70 is on the same side as the OIS support 40, the flexure arm 22 is fixedly connected to the lower pressing plate 70, and the lower pressing plate 70 has a claw 70a, and the claw 70a is provided with a lower clamping groove 71, and the other end of the SMA wire is fixed in the lower clamping groove 71.

Specifically, the upper wire clamping groove 61 is formed by bending the extension arm of the upper pressing plate 60, and the extension arm includes a first bending portion and a second bending portion, an upper concave portion is provided on the first bending portion, and an upper convex portion is provided on the second bending portion, and the upper concave portion and the upper convex portion are provided correspondingly, and the upper concave portion cooperates with the upper convex portion to fix the SMA wire 10, thereby improving the clamping capacity of the upper wire clamping groove 61. In specific implementation, the structure of the lower wire clamping groove 71 of the lower pressing plate 70 is the same as that of the upper wire clamping groove 61. That is, the lower wire clamping groove 71 is formed by bending the extension arm of the lower pressing plate 70, and the extension arm of the lower pressing plate 70 includes a third bending portion and a fourth bending portion, a lower concave portion is provided on the third bending portion, and a lower convex portion is provided on the fourth bending portion, and the lower concave portion and the lower convex portion are provided correspondingly, and the lower concave portion and the lower convex portion cooperate to fix the SMA wire 10.

The spring body 21 is a polygonal plate body, and the spring body 21 has a first mounting portion and a second mounting portion, and the first mounting portion and the second mounting portion are located on two opposite corners of the spring body 21; the pressing plate assembly includes two upper pressing plates 60, one upper pressing plate 60 is located on the first mounting portion, and the other upper pressing plate 60 is located on the second mounting portion. The middle part of the spring body 21 has a through hole, and a positioning avoidance opening 21b is provided on the side wall of the through hole of the spring body 21, so that when installing the SMA wire, the position of the spring body 21 can be fixed by a special fixture and the positioning avoidance opening 21b. Correspondingly, a positioning avoidance opening 77 is also provided on the lower pressing plate 70, which is arranged corresponding to the positioning avoidance opening 21b of the spring body 21.

Specifically, a boss 21a is provided on both the first mounting portion and the second mounting portion, and a groove 62 is provided on the side of the upper pressing plate 60 facing the spring body 21, and the boss 21a cooperates with the groove 62 to limit. The structural stability can be improved by this structure. Among them, the position height of the upper pressing plate 60 is slightly higher than the position height of the spring body 21. The spring body 21 and the two upper pressing plates 60 can be integrally processed or separately arranged. For further consideration and analysis of the safety of the product, the upper pressing plate 60 is preferably made of a material with low hardness, so that it is not easy to crush or deform the SMA wire 10, so as to provide the best protection for the key component SMA wire 10 as much as possible. For the spring body 21 that is often in motion, especially the two slender flexure arms 22 that are often in a telescopic state, it is ideal to select a material with high hardness and strong rigidity, which will be of great help in fatigue resistance and stability of performance maintenance during the anti-motion process. Therefore, in this embodiment, the upper pressing plate 60 and the OIS spring 20 are required to be made of materials with different hardnesses and to be implemented in a split structure.

In this embodiment, there are multiple SMA wires 10, and each upper pressing plate 60 is provided with two upper clamping grooves 61, and each upper clamping groove 61 is used to install a corresponding SMA wire 10. Two clamping claws 70a are provided on the lower pressing plate 70, and each clamping claw 70a is provided with two lower clamping grooves 71. The two clamping claws 70a are located at two diagonal corners of the lower pressing plate 70. The four lower clamping grooves 71 are arranged in a one-to-one correspondence with the four upper clamping grooves 61. One end of the SMA wire 10 is connected to the lower clamping groove 71, and the other end of the SMA wire 10 is connected to the upper clamping groove 61. In this way, the four SMA wires 10 in this embodiment can be fixed by the upper pressing plate 60 and the lower pressing plate 70.

Specifically, the two sets of lower clamping grooves 71 of the lower pressing plate 70 are located at two diagonal corners of the OIS spring 20, and the two upper pressing plates 60 are located at the other two diagonal corners of the OIS spring 20. The spring body 21 is supported and lifted by the four OIS supports 40 located on the OIS substrate 30, so that the spring body 21 and the lower pressing plate 70 are parallel and separated from each other in space. After the four SMA wires 10 are assembled, the wires are at the same level.

As shown in Fig. 7 and Fig. 8, in this embodiment, the lower pressing plate 70 includes a first input conducting part 721, a second input conducting part 722, a third input conducting part 723, a fourth input conducting part 724 and two ground conducting parts 725 which are arranged at intervals from each other. Among them, the first input conducting part 721, the second input conducting part 722, the third input conducting part 723 and the fourth input conducting part 724 each have a lower clamping groove 71 and an input terminal 73, the lower clamping groove 71 of the first input conducting part 721 and the lower clamping groove 71 of the second input conducting part 722 are a group, the lower clamping groove 71 of the third input conducting part 723 and the lower clamping groove 71 of the fourth input conducting part 724 are a group, and the two groups of lower clamping grooves 71 are located at two diagonal corners of the lower pressing plate 70.

Each grounding conductive part 725 has a grounding terminal 74, the OIS spring 20 includes two flexure arms 22, the two flexure arms 22 are arranged one by one with the two grounding conductive parts 725, the first input conductive part 721, the fourth input conductive part 724 and one of the grounding conductive parts 725 form a set of power-on loops, and the second input conductive part 722, the third input conductive part 723 and the other grounding conductive part 725 form a set of power-on loops. Among them, the OIS spring 20 is connected with the upper pressing plate 60, the OIS spring 20 is connected with the lower pressing plate 70 only through the flexure arms 22, and the upper pressing plate 60 and the lower pressing plate 70 are connected through the SMA wire, so that the input terminal 73 and the grounding terminal 74 form the input end and the output end of the power-on loop. In addition, in this embodiment, the surfaces of the first input conductive part 721, the second input conductive part 722, the third input conductive part 723, the fourth input conductive part 724 and the two grounding conductive parts 725 are all on the same plane.

Specifically, in this embodiment, the first input conducting part 721, the second input conducting part 722 and the connecting terminal of one of the ground conducting parts 725 are located on one side of the lower pressing plate 70, and the third input conducting part 723, the fourth input conducting part 724 and the connecting terminal of the other ground conducting part 725 are located on the other side of the lower pressing plate 70, so as to facilitate the wiring and connection. In addition, in order to prevent the connecting terminal from contacting with the OIS base 50, the bottom of the connecting terminal is sealed with glue.

In specific implementation, the deformation of the SMA wire causes the resistance to change. By measuring the resistance (Ω) of the SMA wire, the position of the OIS spring 20 (the length of the SMA wire) can be accurately calculated, thereby realizing closed-loop control. By applying different currents to the (X-axis, Y-axis) conduction terminals through the position control system, the position offset adjustment of the AF motor unit in the X-axis and Y-axis directions can be precisely controlled to realize the anti-shake compensation function.

Since the lower pressing sheet 70 needs to be bonded when being fixed, a plurality of overflow glue storage grooves 78 are provided on the lower pressing sheet 70 .

In this embodiment, the first input conducting part 721, the second input conducting part 722, the third input conducting part 723, the fourth input conducting part 724 and the two ground conducting parts 725 are arranged in a ring shape, and the second input conducting part 722 and the fourth input conducting part 724 are both provided with an avoidance groove 75, and the avoidance groove 75 is used to avoid the flexure arm 22. By providing the avoidance groove 75, on the one hand, the device structure can be made compact, and on the other hand, the flexure arm 22 can be prevented from contacting and short-circuiting with components other than the ground conducting part 725.

Each grounding conductive portion 725 is provided with a welding groove 76, which is located at the back side of the connection between the grounding conductive portion 725 and the flexure arm 22. The welding groove 76 can serve as a welding mark, and because the thickness here is relatively thin, it is convenient to weld with the flexure arm 22. Specifically, the welding groove 76 is a half-etched welding groove.

The OIS substrate 30 is provided with a welding avoidance opening 30a, which is provided corresponding to the welding groove 76. Each grounding conductive portion 725 is also provided with a warping avoidance opening 725a, which is located between the welding groove 76 and the grounding terminal 74. For the warping phenomenon that may exist in the processing of the end of the flexure arm 22, the warping avoidance opening 725a can be provided to avoid the phenomenon that the lower pressing sheet 70 and the OIS spring sheet 20 are not well fitted due to the uneven warping of the top end when they are bonded, thereby affecting the performance of the motor.

Specifically, the OIS substrate is provided with two welding avoidance openings 30a, which are relatively arranged on two sides of the OIS substrate 30, and the two welding avoidance openings are arranged corresponding to the welding groove 76 of the grounding conductive part 725. This facilitates welding of the flexure arm 22 and the grounding conductive part 725.

As shown in FIG. 9 , in this embodiment, two end pin sockets 51 are provided on the OIS base 50 , and the two end pin sockets 51 are correspondingly arranged on the two sides of the OIS base 50 , and the terminals of the first input conduction part 721 , the second input conduction part 722 and one of the ground conduction parts 725 are inserted into one of the end pin sockets 51 , and the terminals of the third input conduction part 723 , the fourth input conduction part 724 and the other ground conduction part 725 are inserted into the other end pin socket 51 .

As shown in FIG9 and FIG10 , a baffle 52 is provided on the OIS base 50, and the position of the flexible circuit board can be limited by the baffle 52. The baffle 52 and the OIS base 50 are an integrally formed structure, and a glue point hole 52a is provided on the baffle 52, and a glue overflow storage groove 52b is provided on the bottom edge of the baffle 52. Specifically, in order to allow the flexible circuit board to be embedded in the side of the OIS base 50, there is a gap between the outer surface of the baffle 52 and the OIS base 50 and the side, so that the baffle 52 has a notch, so that the flexible circuit board can be embedded in the notch.

As shown in Figure 11, in a specific implementation, the OIS support 40 includes a support portion and extension portions located on both sides of the support portion, the support portion is used to support the OIS reed 20, and the extension portion is used to connect with the OIS substrate 30. In order to increase the fixing area, the extension portion of the OIS support 40 can be lengthened. The shape and position of the OIS support 40 are not limited to the present embodiment and can be adjusted according to actual needs. In order to further enhance the anti-shake feedback effect, a DLC coating can be provided on the end surface of the support portion. DLC (DIAMOND LIKECARBON, diamond-like carbon film) has high hardness, high wear resistance and extremely low friction coefficient. This hard, wear-resistant and low-friction material has a good effect on improving the anti-shake feedback performance. Of course, general types of Teflon and other coatings can also be used.

As shown in FIG. 12 , the OIS substrate 30 has a hollow inner ring, and there are a plurality of OIS supports 40 . The plurality of OIS supports 40 are arranged in a ring shape along the edge of the inner ring to support the OIS reed 20 .

During specific implementation, the lower pressing plate 70 is fixed on the OIS substrate 30, and the upper pressing plate 60 is a free moving end. When the SMA wire 10 is extended or retracted, the lower pressing plate 70 does not move, and the SMA wire 10 drives the upper pressing plate 60 to move, thereby driving at least part of the OIS reed 20 to move, wherein at least part of the OIS reed 20 is the upper pressing plate 60 and the movable part of the OIS reed 20 when the upper pressing plate 60 drives the OIS reed 20.

The main function of the anti-shake structure of the present invention is: when the camera device is powered on and running, if there is a lens deviation caused by shaking in the X-axis and Y-axis directions, the deviation of the X-axis and Y-axis can be corrected, and a high-quality and stable imaging effect can be finally obtained through automatic correction and rapid resetting of the deviation.

As shown in FIG13 and FIG14 , another embodiment of the present invention provides an anti-shake system, which includes an AF motor 2 and an anti-shake structure 1. The anti-shake structure 1 is the anti-shake structure provided in the above embodiment, and the AF motor 2 is arranged on the OIS reed 20 of the anti-shake structure 1. AF is the abbreviation of Auto Focus, which means automatic focus.

As shown in Figures 25 and 26, specifically, the anti-shake system also includes a shielding cover 3, which is arranged on the AF motor 2 and the anti-shake structure 1. The shielding cover 3 is connected to the OIS base 50. In addition to protecting the internal mechanism, the shielding cover 3 also has the functions of grounding, anti-static and electromagnetic shielding. Further, the shielding cover 3 can shield the signal interference to the high-frequency module and enhance the call quality; after the shielding cover 3 is grounded, it can prevent static electricity generated by the signal and static electricity generated by other friction, which may cause damage to the motor. A lens placement hole is provided on the end face of the shielding cover 3, and a avoidance opening 3a is also provided on the side wall of the lens placement hole. The avoidance opening 3a is used to facilitate clamping and placement when the lens is finally installed.

Preferably, the shielding cover 3 is made of non-magnetic soft stainless steel material.

In this embodiment, the AF motor 2 includes a housing 210, a winding carrier 220, a magnet assembly 230 and a flexible circuit board 240. The winding carrier 220 is arranged in the housing 210, the magnet assembly 230 is arranged between the winding carrier 220 and the housing 210, the flexible circuit board 240 is arranged on the housing 210, and the flexible circuit board 240 is electrically connected to the winding carrier 220. The flexible circuit board 240 is electrically connected to the winding carrier 220, so that an electromagnetic force is generated between the winding carrier 220 and the magnet assembly 230 in the power-on state, so as to drive the winding carrier 220 to move axially, thereby completing the focal length adjustment. The end face of the housing 210 is provided with a through hole, and a plurality of dispensing avoidance openings 214 are annularly provided on the side wall of the through hole of the housing 210, and a flexible circuit board avoidance opening is opened on one of the side walls of the housing 210, and the flexible circuit board 240 is partially located in the flexible circuit board avoidance opening. In this way, the flexible circuit board 240 can be prevented from occupying extra space.

As shown in FIG. 15 and FIG. 16 , the upper end surface of the winding carrier 220 has an inserting recess 221 which is inserted and matched with the flange 211 of the housing 210 , and the inserting recess 221 is a recess-shaped closed all around.

In order to improve the movement reliability of the lens drive motor, the upper end surface of the winding carrier 220 has a plug-in recess 221 that is plugged into the flange 211 of the housing 210. Specifically, the plug-in recess 221 is a recess-shaped recess that is closed all around. The plug-in recess 221 is plugged into and engaged with the flange 211, and has the function of axial torsion resistance and limiting. It should be pointed out that the ordinary flanged socket has a notch in the circumferential direction and is open. The plug-in recess 221 in the present application is a recess-shaped recess that is closed all around, and has the characteristics of good torsion resistance and more precise limiting.

As shown in FIGS. 17 to 19 , in this embodiment, the AF motor 2 further includes: an upper spring 250 and a frame 260. Specifically, the upper spring 250 is disposed in the housing 210, and the upper spring 250 is provided with a first foolproof structure 251, and the upper spring 250 has an installation groove 252, and the installation groove 252 is correspondingly arranged with the flange 211, and the flange 211 is penetrated in the installation groove 252, and the upper spring 250 is connected to the upper end surface of the winding carrier 220. The frame 260 is disposed in the housing 210, and the frame 260 is provided with a second foolproof structure 261, and the first foolproof structure 251 cooperates with the second foolproof structure 261 to install the upper spring 250 and the frame 260 in place.

The cooperation between the first fool-proofing structure 251 and the second fool-proofing structure 261 can effectively prevent the upper spring 250 from being installed in reverse and affecting the movement of the moving parts, thereby improving the installation accuracy of the device, avoiding misassembly, and improving the reliability of the AF motor movement.

The first foolproof structure 251 is located on the outer ring side of the upper spring 250. Since the inner ring side of the upper spring 250 moves, while the outer ring side does not move, the first foolproof structure 251 is provided on the outer ring side without affecting the movement effect of the device.

Specifically, the first foolproof structure 251 is a positioning socket provided on the upper spring 250; the second foolproof structure 261 is a positioning protrusion provided on the frame 260, and the positioning protrusion can be embedded in the positioning socket. Since the upper spring 250 is not square, there are strict requirements on the installation direction. If the first foolproof structure 251 is not provided on the upper spring 250, it is very easy to be installed in a misaligned manner. The upper spring 250 is matched with the frame 260 and serves as an installation direction mark, which is conducive to the assembly operation and prevents the assembly direction of the upper spring 250 from being misaligned.

One of the side walls of the housing 210 is used as the installation positioning surface 212, and the installation positioning surface 212 is not provided with a magnet assembly 230. The side wall of the housing 210 adjacent to the installation positioning surface 212 is the terminal lead-out surface 213. The flexible circuit board 240 is led out from the installation positioning surface 212, then bent and extends along the terminal lead-out surface 213. Specifically, the flexible circuit board 240 includes a terminal lead-out section 241 and a positioning section 242 connected to each other, and there is an angle between the terminal lead-out section 241 and the positioning section 242. The terminal lead-out section 241 is arranged on the terminal lead-out surface 213, and the positioning section 242 is arranged on the installation positioning surface 212. Two positive and negative PIN pins that can be energized are provided at the end of the terminal lead-out section 241.

The side wall surface of the frame 260 facing the positioning section is provided with a limiting groove 262, and the bottom edge of the side wall is provided with a lower spring avoidance opening, the positioning section 242 is embedded in the limiting groove 262 of the frame 260, the structure of the limiting groove 262 is adapted to the shape of the positioning section 242, and the inner wall of the shielding cover 3 cooperates with the motor base 280 and the OIS base 50 to limit the position of the flexible circuit board 240. By providing the lower spring avoidance opening, part of the structure of the lower spring can be staggered with the frame 260 during the translation process without being interfered by the frame 260.

As shown in FIGS. 20 to 24 , the AF motor 2 further includes a lower spring 270 and a motor base 280 located below the winding carrier 220 . The lower spring 270 is arranged on the motor base 280 . The lower spring 270 is used to support the lower end surface of the winding carrier 220 . The housing 210 is arranged on the motor base 280 to form a receiving space between the two. The winding carrier 220 , the magnet assembly 230 , the upper spring 250 , the frame 260 and the lower spring 270 are all located in the receiving space to protect the internal components. The housing 210 and the motor base 280 are assembled together through a chimeric structure. The structure is simple, the operation is convenient, the assembly effect is good, and the reliability and stability are strong. Specifically, a snap-fitting convex edge is arranged at the bottom end of the housing 210 , and the motor base 280 has four extended end angles, and the four extended end angles are arranged at intervals from each other so that a snap-fitting groove is formed between two adjacent extended end angles. The snap-fitting convex edge is correspondingly arranged in the snap-fitting groove so that the housing 210 and the motor base 280 are chimeric together.

An end angle boss 280d is also provided on the extended end angle of each motor base 280. The end angle boss 280d is matched with the inner wall of the housing 210, and the displacement of the housing 210 can be limited by the end angle boss 280d.

Specifically, a plurality of positioning posts are provided on the end surfaces where the winding carrier 220 and the lower spring 270 are assembled. Correspondingly, a positioning hole is provided on the lower spring 270, and the positioning posts are inserted into the positioning hole to improve the positioning effect of the two.

The lower spring 270 also has a positioning hole for cooperating with the motor base 280 for positioning. Correspondingly, a positioning column is provided on the motor base 280 to cooperate with the positioning hole on the lower spring 270 for positioning.

Specifically, the lower spring 270 includes four units arranged in a ring shape, each unit having a first fixing portion and a second fixing portion, the first fixing portion is used to connect to the motor base 280, the second fixing portion is used to connect to the winding carrier 220, and the first fixing portion is arranged on the outside of the second fixing portion.

A plurality of limit posts 280c are arranged on the side of the motor base 280. The plurality of limit posts 280c are arranged in a ring shape on the side of the motor base 280. The plurality of limit posts 280c are used to limit the displacement of the winding carrier 220. Specifically, the displacement of the winding carrier 220 in the X and Y axis directions can be limited by the plurality of limit posts 280c.

Specifically, a limiting convex ring 280b adapted to the end surface of the OIS spring sheet 20 is provided on the bottom surface of the motor base 280, and the limiting convex ring 280b is used to bond with the OIS spring sheet 20. Two claw avoidance recesses 280a and two base bonding protrusions 280e are also provided at the end corners of the motor base 280 around the limiting convex ring 280b. The two claw avoidance recesses 280a are provided corresponding to the claws 70a, and the two base bonding protrusions 280e are provided corresponding to the upper pressing plate 60. The claw avoidance recesses 280a are used to avoid the claws 70a, and the base bonding protrusions 280e are used to bond with the upper pressing plate 60.

Specifically, in this embodiment, the motor base 280 is provided with a terminal pin 281, the positioning section of the flexible circuit board 240 is provided with a solder hole 243, one end of the terminal pin 281 is electrically connected to the lower spring 270, the other end of the terminal pin 281 is connected to the solder hole 243 on the flexible circuit board 240, and the lower spring 270 is electrically connected to the winding carrier 220. In this arrangement, when the terminal pins on the flexible circuit board 240 are connected, the circuit will be transmitted from the motor base 280 to the lower spring 270, and from the end of the lower spring 270 electrically connected to the winding carrier 220 to the winding carrier 220, so that the coil on the winding carrier 220 is energized.

When the flexible circuit board 240 passes current to the winding carrier 220, an electromagnetic force is generated between the coil in the winding carrier 220 and the magnet assembly 230. According to Fleming's left-hand rule, the electromagnetic force drives the winding carrier 220 to move linearly along the optical axis of the lens, and the winding carrier 220 finally stays at a position where the electromagnetic force generated between the coil and the magnet assembly 230 and the elastic force of the upper spring 250 and the lower spring 270 reach a state of equilibrium. By passing a predetermined current through the coil, the winding carrier 220 can be controlled to move to the target position, thereby achieving the purpose of focusing.

The assembly method and sequence of the anti-shake system of the present invention are as follows:

First, the stator assembly of the AF motor is manufactured, which is realized by combining a housing, a frame, an upper spring, a magnet and a flexible circuit board.

Preferably, the moving subassembly of the AF motor is manufactured. This is achieved by assembling the lower spring and the winding carrier. Laser welding is performed by spot soldering paste in the spot welding hole of the lower spring, and the start and end coils of the coil wound on the carrier hanging column are electrically connected with the lower spring.

Preferably, the mover assembly of the AF motor is inserted into the motor base, and laser welding is performed on the opposite corners of the lower spring (the welding pads of the motor base) to achieve electrical conduction between the lower spring and the motor base.

Preferably, after the mover assembly and the motor base are assembled, the stator assembly is buckled.

Thus, the structure of the AF motor is completed through the above-mentioned assembly steps. The following is an explanation of the assembly method of the anti-shake structure.

The lower pressing sheet and the OIS support are bonded to the OIS substrate to form the OIS lower component.

The upper pressing sheet is welded to the OIS spring sheet to form the OIS upper component, and the end of the flexure arm of the OIS spring sheet in the OIS upper component is welded to the lower pressing sheet in the OIS lower component, so that the upper component and the lower component are electrically connected.

Hang the SMA wires into the wire clamping grooves of the upper and lower pressing plates, and press the convex and concave parts in the wire clamping grooves to complete the assembly of the four SMA wires.

Preferably, the above-mentioned combined component with the SMA wire hung is placed on an OIS base.

Thus, the anti-shake structure is constructed through the above assembly steps. The following describes the assembly method between the AF motor and the anti-shake structure.

First, apply glue to the surface of the reed body, the boss of the motor base, and the baffle of the OIS base.

Furthermore, the boss surface of the motor base and the surface of the reed body are face-to-face configured to finally achieve the bonding and positioning of the two components. As a result, the AF motor is supported and independent of the anti-shake structure. Except for the above-mentioned face-to-face contact portion of the two components, the rest of the parts between the two are not in contact with each other. This spatial configuration between the two reserves sufficient space for the AF motor to move freely and adjust the axial position.

Furthermore, the end pins of the flexible circuit board are attached to the baffle.

Glue the four sides of the OIS base, cover it with a shield, and weld the shield to the OIS base. In addition to being in fixed contact with the OIS base, the shield has a certain space between the top and sides of its internal space and the AF motor and the anti-shake structure, which ensures that the AF motor will not interfere with the shield when it moves in the X, Y, and Z axis directions.

The solution provided by this embodiment has a simple, light and thin structure, and its construction material is strong; it uses SMA wire and has the advantage of low power; it can prevent magnetic interference by setting a shielding cover; its device structure is stable and easy to control; it has a simple structure and low manufacturing cost.

An embodiment of the present invention further provides a camera device, including a camera body and an anti-shake structure for performing anti-shake processing on the camera body, and the anti-shake structure is the anti-shake structure provided in the above embodiment.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and/or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (27)

1. An anti-shake structure, comprising: SMA wire (10); An OIS reed (20), the SMA wire (10) being fixedly connected to the OIS reed (20); OIS substrate (30); A pressing sheet assembly, the pressing sheet assembly being partially disposed on the OIS substrate (30), the pressing sheet assembly being electrically connected to the SMA wire (10), so that the SMA wire (10) contracts or expands under the action of an electric current and drives at least a portion of the OIS spring sheet (20) to move along a predetermined direction, the pressing sheet assembly comprising two groups of input terminals (73) and two groups of grounding terminals (74), wherein one group of the input terminals (73) and one group of the grounding terminals (74) are located on one side of the pressing sheet assembly, and another group of the input terminals (73) and another group of the grounding terminals (74) are located on another side of the pressing sheet assembly; An OIS support (40) disposed on the OIS substrate (30), the OIS support (40) being used to support the OIS reed (20); An OIS base (50) is arranged on a side of the OIS substrate (30) away from the OIS support (40) and is connected to the OIS substrate (30); The OIS reed (20) is used to connect to the AF motor, so that when at least a portion of the OIS reed (20) moves driven by the SMA wire (10), it drives the AF motor to move along the predetermined direction; The OIS reed (20) comprises a reed body (21) and a flexure arm (22), one end of the flexure arm (22) being connected to the reed body (21), and the other end of the flexure arm (22) being connected to the pressing sheet assembly, the reed body (21) being movably arranged on the OIS support (40), and the reed body (21) being movable along the predetermined direction; The OIS substrate (30), the pressing assembly, the OIS support (40) and the OIS base (50) are all separate structures; The tablet pressing assembly comprises: An upper pressing plate (60), the upper pressing plate (60) being arranged on a side of the OIS spring plate (20) away from the OIS support (40), the upper pressing plate (60) having an upper wire clamping groove (61), one end of the SMA wire (10) being fixed in the upper wire clamping groove (61); A lower pressing plate (70) is arranged on the OIS substrate (30), the lower pressing plate (70) and the OIS support (40) are on the same side, the flexure arm (22) is fixedly connected to the lower pressing plate (70), the lower pressing plate (70) has a clamping claw (70a), a lower wire clamping groove (71) is arranged on the clamping claw (70a), and the other end of the SMA wire is fixed in the lower wire clamping groove (71); The lower pressing plate (70) comprises a first input conducting part (721), a second input conducting part (722), a third input conducting part (723), a fourth input conducting part (724) and two grounding conducting parts (725) which are arranged at intervals from each other; the first input conducting part (721), the second input conducting part (722), the third input conducting part (723) and the fourth input conducting part (724) each have a lower wire clamping groove (71) and an input terminal (73); the lower wire clamping groove (71) of the first input conducting part (721) and the lower wire clamping groove (71) of the second input conducting part (722) form a group; the lower wire clamping groove (71) of the third input conducting part (723) and the lower wire clamping groove (71) of the fourth input conducting part (724) form a group; the two groups of the lower wire clamping grooves (71) are located at two diagonal corners of the lower pressing plate (70); and each of the grounding conducting parts (725) has a grounding terminal (74). 2. The anti-shake structure according to claim 1, characterized in that the SMA wire (10) comprises a plurality of SMA wires (10), the plurality of SMA wires (10) are arranged along the periphery of the OIS reed (20), one end of each of the SMA wires (10) is connected to the OIS reed (20), and the other end of each of the SMA wires (10) is a fixed end. 3. The anti-shake structure according to claim 2, characterized in that the pressing sheet assembly comprises a plurality of wire conduction terminals and a plurality of wire conduction parts, and the plurality of wire conduction terminals and the plurality of wire conduction parts are arranged in a one-to-one correspondence, so that each of the SMA wires (10) is electrically connected to the corresponding wire conduction terminal through the wire conduction part. 4. The anti-shake structure according to claim 2, characterized in that there are four SMA threads (10), and the four SMA threads (10) are respectively a first SMA thread, a second SMA thread, a third SMA thread and a fourth SMA thread; wherein the first SMA thread and the third SMA thread are arranged in parallel, the second SMA thread and the fourth SMA thread are arranged in parallel, and the first SMA thread and the second SMA thread are arranged perpendicularly. 5. The anti-shake structure according to claim 1, characterized in that the upper wire clamping groove (61) is formed by bending an extension arm of the upper pressing plate (60), the extension arm comprises a first bending portion and a second bending portion, the first bending portion is provided with an upper concave portion, the second bending portion is provided with an upper convex portion, the upper concave portion and the upper convex portion are arranged correspondingly, and the upper concave portion cooperates with the upper convex portion to fix the SMA wire (10); The lower wire clamping groove (71) is formed by bending an extension arm of the lower pressing plate (70), the extension arm of the lower pressing plate (70) comprising a third bending portion and a fourth bending portion, the third bending portion being provided with a lower concave portion, the fourth bending portion being provided with a lower convex portion, the lower concave portion being provided correspondingly to the lower convex portion, and the lower concave portion cooperates with the lower convex portion to fix the SMA wire (10). 6. The anti-shake structure according to claim 5 is characterized in that the reed body (21) is a polygonal plate body, the reed body (21) has a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion are located at two opposite corners of the reed body (21); the pressing sheet assembly includes two upper pressing sheets (60), one of the upper pressing sheets (60) is located on the first mounting portion, and the other upper pressing sheet (60) is located on the second mounting portion, the middle part of the reed body (21) has a through hole, and the side wall of the through hole of the reed body (21) is provided with a positioning avoidance opening (21b). 7. The anti-shake structure according to claim 6, characterized in that a boss (21a) is provided on both the first mounting portion and the second mounting portion, a groove (62) is provided on a side of the upper pressing plate (60) facing the spring body (21), and the boss (21a) cooperates with the groove (62) to limit position. 8. The anti-shake structure according to claim 6 is characterized in that there are multiple SMA wires (10), and each of the upper pressing plates (60) is provided with two upper wire clamping grooves (61), and each of the upper wire clamping grooves (61) is used to install a corresponding SMA wire (10); the lower pressing plate (70) is provided with two clamping claws (70a), and each of the clamping claws (70a) is provided with two lower wire clamping grooves (71), and the two clamping claws (70a) are located at two opposite corners of the lower pressing plate (70), and the four lower wire clamping grooves (71) are arranged in a one-to-one correspondence with the four upper wire clamping grooves (61), one end of the SMA wire (10) is connected to the lower wire clamping groove (71), and the other end of the SMA wire (10) is connected to the upper wire clamping groove (61). 9. The anti-shake structure according to claim 5, characterized in that the OIS spring (20) comprises two flexure arms (22), the two flexure arms (22) are arranged in a one-to-one correspondence with the two grounding conductive parts (725), the first input conductive part (721), the fourth input conductive part (724) and one of the grounding conductive parts (725) form a group of power-on loops, the second input conductive part (722), the third input conductive part (723) and the other grounding conductive part (725) form a group of power-on loops, and the surfaces of the first input conductive part (721), the second input conductive part (722), the third input conductive part (723), the fourth input conductive part (724) and the two grounding conductive parts (725) are all on the same plane. 10. The anti-shake structure according to claim 9, characterized in that the first input conduction part (721), the second input conduction part (722), the third input conduction part (723), the fourth input conduction part (724) and the two ground conduction parts (725) are arranged in a ring shape, and the second input conduction part (722) and the fourth input conduction part (724) are both provided with an avoidance groove (75), and the avoidance groove (75) is used to avoid the flexure arm (22). 11. The anti-shake structure according to claim 9, characterized in that each of the grounding conductive parts (725) is provided with a welding groove (76), and the welding groove (76) is located on the back side of the connection between the grounding conductive part (725) and the flexure arm (22); a welding avoidance opening (30a) is provided on the OIS substrate (30), and the welding avoidance opening (30a) is arranged corresponding to the welding groove (76); each of the grounding conductive parts (725) is also provided with a warping avoidance opening (725a), and the warping avoidance opening (725a) is located between the welding groove (76) and the grounding terminal (74). 12. The anti-shake structure according to claim 9 is characterized in that two end pin sockets (51) are provided on the OIS base (50), and the two end pin sockets (51) are correspondingly arranged on two sides of the OIS base (50), and the input terminals (73) of the first input conduction part (721) and the second input conduction part (722) and the grounding terminal (74) of one of the grounding conduction parts (725) are inserted into one of the end pin sockets (51), and the input terminals (73) of the third input conduction part (723) and the fourth input conduction part (724) and the grounding terminal (74) of the other grounding conduction part (725) are inserted into the other end pin socket (51). 13. The anti-shake structure according to claim 9, characterized in that a baffle (52) is provided on the OIS base (50), the baffle (52) is used to limit the position of the flexible circuit board, and a glue point hole (52a) and an overflow glue storage groove (52b) are provided on the baffle (52). 14. The anti-shake structure according to claim 9, characterized in that the OIS support (40) comprises a supporting portion and extending portions located on both sides of the supporting portion, the supporting portion is used to support the OIS reed (20), and the extending portions are used to connect to the OIS substrate (30). 15. The anti-shake structure according to claim 1, characterized in that the entire surface of the OIS substrate (30) is coated with an insulating layer. 16. The anti-shake structure according to claim 14, characterized in that the end surface of the supporting portion of the OIS support (40) is provided with a DLC coating. 17. An anti-shake system, characterized in that the anti-shake system comprises an AF motor (2) and an anti-shake structure (1), the anti-shake structure (1) is the anti-shake structure according to any one of claims 1 to 16, and the AF motor (2) is arranged on an OIS reed (20) of the anti-shake structure (1). 18. The anti-shake system according to claim 17 is characterized in that the anti-shake system further comprises a shielding cover (3), wherein the shielding cover (3) is arranged on the AF motor (2) and the anti-shake structure (1), a lens placement hole is provided on the end surface of the shielding cover (3), and a side wall of the lens placement hole is also provided with a avoidance opening (3a). 19. The anti-shake system according to claim 18, characterized in that the AF motor (2) comprises a housing (210), a winding carrier (220), a magnet assembly (230) and a flexible circuit board (240), wherein the winding carrier (220) is arranged in the housing (210), the magnet assembly (230) is arranged between the winding carrier (220) and the housing (210), the flexible circuit board (240) is arranged on the housing (210), the flexible circuit board (240) is electrically connected to the winding carrier (220), a through hole is arranged on the end surface of the housing (210), a plurality of glue dispensing avoidance openings (214) are annularly arranged on the side wall of the through hole of the housing (210), a flexible circuit board avoidance opening is opened on one of the side walls of the housing (210), and a portion of the flexible circuit board (240) is located in the flexible circuit board avoidance opening. 20. The anti-shake system according to claim 19, characterized in that the AF motor (2) further comprises: An upper spring (250) is disposed in the housing (210), the upper spring (250) being connected to an upper end surface of the winding carrier (220); A frame (260) is disposed in the housing (210) and is located between the upper spring (250) and the housing (210); A lower spring (270) and a motor base (280) are located below the winding carrier (220), the lower spring (270) being arranged on the motor base (280), the lower spring (270) being used to support the lower end surface of the winding carrier (220), the housing (210) being arranged on the motor base (280) to form an accommodation space between the two, the winding carrier (220), the magnet assembly (230), the upper spring (250), the frame (260) and the lower spring (270) being all located in the accommodation space, the bottom end of the housing (210) being provided with a snap-fitting convex edge, the motor base (280) having four extended end corners, the four extended end corners being arranged at intervals from each other so that a snap-fitting groove is formed between two adjacent extended end corners, the snap-fitting convex edge being correspondingly arranged in the snap-fitting groove so that the housing (210) and the motor base (280) are embedded together. 21. The anti-shake system according to claim 20, characterized in that one of the side walls of the housing (210) serves as a mounting positioning surface (212), the magnet assembly (230) is not provided at the mounting positioning surface (212), the side wall of the housing (210) adjacent to the mounting positioning surface (212) is a terminal lead-out surface (213), the flexible circuit board (240) comprises a terminal lead-out section (241) and a positioning section (242) connected to each other, an angle is formed between the terminal lead-out section (241) and the positioning section (242), the terminal lead-out section (241) is provided on the terminal lead-out surface (213), and the positioning section (242) is provided on the mounting positioning surface (212). 22. The anti-shake system according to claim 21 is characterized in that a limiting groove (262) is provided on the side wall surface of the frame (260) facing the positioning section, and a lower spring avoidance opening is provided at the bottom of the side wall, the positioning section is embedded in the limiting groove (262) of the frame (260), the structure of the limiting groove (262) is adapted to the shape of the positioning section, and the inner wall of the shielding cover (3) cooperates with the motor base (280) and the OIS base (50) to limit the position of the flexible circuit board (240). 23. The anti-shake system according to claim 20 is characterized in that a terminal pin (281) is provided on the motor base (280), the positioning section of the flexible circuit board (240) has a solder hole (243), one end of the terminal pin (281) is electrically connected to the lower spring (270), the other end of the terminal pin (281) is connected to the solder hole (243) on the flexible circuit board (240), and the lower spring (270) is electrically connected to the winding carrier (220). 24. The anti-shake system according to claim 21 is characterized in that two claw avoidance recesses (280a) and two base bonding protrusions (280e) are provided at the bottom of the extended end angle of the motor base (280), the two claw avoidance recesses (280a) are provided corresponding to the claws (70a) of the anti-shake structure (1), the two base bonding protrusions (280e) are provided corresponding to the upper pressure plate (60) of the anti-shake structure (1), and a limiting convex ring (280b) is further provided on the bottom surface of the motor base (280), and the limiting convex ring (280b) is engaged with the OIS spring sheet of the anti-shake structure (1). 25. The anti-shake system according to claim 20 is characterized in that a plurality of limit posts (280c) are provided on the motor base (280), the plurality of limit posts (280c) are arranged in a ring shape on the side of the motor base (280), and the plurality of limit posts (280c) are used to limit the displacement of the winding carrier (220). 26. The anti-shake system according to claim 21 is characterized in that an end corner boss (280d) is also provided on the extended end corner of each motor base (280), and the end corner boss (280d) is adapted to the inner wall of the outer shell (210), and the end corner boss (280d) is used to limit the displacement of the outer shell (210). 27. A camera device, comprising a camera body and an anti-shake structure for performing anti-shake processing on the camera body, wherein the anti-shake structure is the anti-shake structure according to any one of claims 1 to 16.