Anti-shake mechanism

Abstract

The present invention discloses an anti-shake mechanism, comprising a metal sheet group, a connecting spring, a memory alloy group, a motor-driven connecting piece, and a base. The metal sheet group is fixed to the base, the motor-driven connecting piece can be movably arranged on the side of the metal sheet group away from the base to connect to the motor, the memory alloy group is connected between the metal sheet group and the motor-driven connecting piece and drives at least a part of the motor-driven connecting piece to move relative to the metal sheet group when the power is turned on and off, and the connecting spring is arranged on the side of the metal sheet group away from the base and electrically connects the metal sheet group to the motor. The motor-driven connecting piece is provided with a first motor-driven connecting end and a second motor-driven connecting end fixedly connected to the first motor-driven lead-out point and the second motor-driven lead-out point of the metal sheet group, and only one of the first motor-driven lead-out point and the second motor-driven lead-out point has a conductive function. The present invention has a small overall volume and can improve the response rate of the anti-shake mechanism.

Description

Technical Field

[0001] The present invention relates to the field of camera equipment, and in particular to an anti-shake mechanism. Background Art

[0002] Currently, photos taken with mobile phones sometimes appear blurry, meaning the images aren't clear enough, or even have ghosting or blurry images. These issues, in addition to occasional loss of focus (i.e., the camera fails to focus properly), are largely due to slight jitter during exposure.

[0003] Generally speaking, this slight shaking phenomenon often occurs when holding a camera, causing the camera lens to deviate, resulting in a degradation of the image quality captured by the image sensor. Therefore, the demand for the development of anti-shake technology functions has been relatively high in recent years.

[0004] 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

[0005] The purpose of the present invention is to provide an anti-shake mechanism to solve the above problems in the prior art.

[0006] In order to solve the above problems, according to one aspect of the present invention, an anti-shake mechanism is provided, which includes a metal sheet group, a connecting spring, a memory alloy group, a motor drive connecting sheet and a base.

[0007] The metal sheet group is fixed on the base, and the motor driving connecting piece is movably arranged on a side of the metal sheet group away from the base to connect to the motor.

[0008] The memory alloy group is connected between the metal plate group and the motor drive connecting plate and drives at least a portion of the motor drive connecting plate to move relative to the metal plate group when the power is turned on and off.

[0009] The connecting spring is arranged on a side of the metal sheet group away from the base and electrically connects the metal sheet group to the motor, wherein

[0010] The motor drive connecting plate is provided with a first motor drive connecting end and a second motor drive connecting end, the metal plate group is provided with a first motor drive lead-out point and a second motor drive lead-out point fixedly connected to the first motor drive connecting end and the second motor drive connecting end, and only one of the first motor drive lead-out point and the second motor drive lead-out point has a conductive function.

[0011] In one embodiment, the anti-shake mechanism further includes a plurality of support blocks, which are fixedly mounted on the metal plate group and movably support the motor drive connecting plate on the metal plate group.

[0012] In one embodiment, an opening is formed in the middle of the metal sheet, and a first corner, a second corner, a third corner and a fourth corner are formed around the opening, wherein the first corner and the third corner located on the diagonal line are respectively provided with a first connection portion, a second connection portion, a third connection portion and a fourth connection portion connected to the memory alloy group.

[0013] In one embodiment, the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion are wire clips integrally formed with the metal sheet group.

[0014] In one embodiment, the first connecting portion and the second connecting portion are arranged on the outside of the first corner portion, and the first and second leading-out points that are electrically connected or signal-connected with the connecting spring are arranged on the inside of the first connecting portion and the second connecting portion, and the third connecting portion and the fourth connecting portion are arranged on the outside of the third corner portion, and the third and fourth leading-out points that are electrically connected or signal-connected with the connecting spring are arranged on the inside of the third corner portion.

[0015] In one embodiment, a first support block mounting portion is provided between the first lead-out point and the second lead-out point, and a third support block mounting portion is provided between the third lead-out point and the fourth lead-out point.

[0016] In one embodiment, the first part, the second part, the third part and the fourth part of the metal sheet group are formed around the opening, the first corner is formed between the first part and the second part, the second corner is formed between the second part and the third part, the third corner is formed between the third part and the fourth part, and the fourth corner is formed between the fourth part and the first part, and the first part and the third part respectively extend a plurality of input terminals and ground terminals downward as a whole.

[0017] In one embodiment, the base is provided with a vacant slot, and the plurality of input terminals and the ground terminal extend into and pass through the vacant slot.

[0018] In one embodiment, the second corner and the fourth corner are chamfered in shape and are provided with a second support block mounting portion and a fourth support block mounting portion on the inner side, and a notch is formed on the outer side of the second corner and the fourth corner, and the notch corresponds to the portion on the motor drive connecting plate that is connected to the memory alloy, thereby avoiding the portion so that the portion is directly located on the base.

[0019] In one embodiment, the connecting spring is formed by four independent connecting spring strips.

[0020] In one embodiment, the left and right ends of the reed strip are respectively provided with connecting pieces for electrical or signal communication with the metal sheet group or the bottom of the motor.

[0021] In one embodiment, the left and right ends of the spring strip are respectively bent to form a first bent portion and a second bent portion, and a first connecting piece is provided at one end where the first bent portion is located, which is fixedly connected to the connection point at the bottom of the motor and is in signal or electrical communication, and a second connecting piece is provided at one end where the second bent portion is located, which is in electrical or signal communication with the lead-out point on the metal sheet group.

[0022] In one embodiment, a central opening is provided in the middle of the motor drive connecting plate, and a first side, a second side, a third side and a fourth side of the motor drive connecting plate are formed around the central opening, the connection between the first side and the second side forms a first rounded corner, the connection between the second side and the third side forms a second rounded corner, the connection between the third side and the fourth side forms a third rounded corner, and the connection between the fourth side and the first side forms a fourth rounded corner, wherein the first circle and the fourth rounded corner located on one diagonal line and the outer sides of the second rounded corner and the fourth rounded corner located on another diagonal line extend out as a whole to form a connection portion connected to the memory alloy group.

[0023] In one embodiment, a first motor drive connection portion extends integrally from the outer side of the first side portion, the first motor drive connection portion extends along the outer side of the first side portion to the first rounded corner, is bent along the arc of the first rounded corner at the first rounded corner to the outer side of the second side portion, and extends on the outer side of the second side portion to form the first motor drive connection end, and

[0024] A third motor drive connection portion extends integrally from the outer side of the third side portion, and the third motor drive connection portion extends along the outer side of the third side portion to the third rounded corner, and is bent along the arc of the third rounded corner at the third rounded corner to the outer side of the fourth side portion, and extends from the outer side of the fourth side portion to form the second motor drive connection end.

[0025] In one embodiment, the motor drive connection extends from a midpoint of one side of the motor drive connection and extends to a midpoint of an adjacent side.

[0026] In one embodiment, the first motor drive connection end and the second motor drive end are fixedly connected to the first motor drive connection plate lead-out point and the second motor drive connection plate lead-out point on the metal plate group, respectively.

[0027] In this embodiment, the first motor drive connection end is wider than the main body of the first motor drive connection portion, and the second motor drive connection end is wider than the main body of the second motor drive connection portion.

[0028] In one embodiment, the anti-shake mechanism further includes a fixing plate, and the fixing plate is disposed between the metal sheet group and the base to fix the metal sheet group to the base.

[0029] In one embodiment, the memory alloy group includes four memory alloy wires, and two ends of the first memory alloy wire are respectively fixed to the motor drive connecting plate connecting part and the connecting part of the metal plate group to electrically connect the motor drive connecting plate connecting part and the connecting part of the metal plate group.

[0030] The present invention adopts memory alloy to realize anti-shake function, which can reduce the number of magnet groups and reduce the overall volume. At the same time, the memory alloy wire has the advantages of low power, high rigidity and stability, thereby greatly improving the reaction rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a perspective exploded view of an embodiment of the present invention.

[0032] Figure 2 It is a three-dimensional diagram of a metal sheet assembly according to an embodiment of the present invention.

[0033] Figure 3 It is a front view of a metal sheet assembly according to an embodiment of the present invention.

[0034] Figure 4 1 is a perspective view of a connecting spring according to an embodiment of the present invention.

[0035] Figure 5 It is a front view of a connecting spring according to an embodiment of the present invention.

[0036] Figure 6 1 is a perspective view of a motor drive connecting piece according to an embodiment of the present invention.

[0037] Figure 7 This is a front view of a motor drive connecting piece according to an embodiment of the present invention.

[0038] Figure 8 It is a three-dimensional diagram of an assembly of a metal sheet group, a plurality of support blocks, a connecting spring and a memory alloy group according to an embodiment of the present invention.

[0039] Figure 9 It is a three-dimensional diagram of an assembly including a metal sheet group, a plurality of support blocks, a connecting spring, a memory alloy group, and a motor drive connecting sheet according to an embodiment of the present invention.

[0040] Figure 10 It is a three-dimensional exploded view of an assembly consisting of a base, a fixing plate, a metal sheet group, a plurality of support blocks, a connecting spring, a memory alloy group, a motor drive connecting sheet, and a motor according to an embodiment of the present invention.

[0041] Figure 11 FIG. 1 is a bottom view of a motor according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0043] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0044] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0045] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0046] Figure 1 1 is a perspective exploded view of an embodiment of the present invention. Figure 1 As shown, the anti-shake mechanism 100 is primarily used to connect to the combined motor to achieve anti-shake function when taking pictures. Specifically, the anti-shake mechanism 100 includes a base 10, a fixing plate 20, a metal plate group 30, multiple support blocks 40, a connecting spring 50, a memory alloy group 60, and a motor drive connecting plate 70.

[0047] The fixing plate 20 is mounted on the base 10, the metal sheet group 30 is mounted on the fixing plate 20, the connecting spring 50 and multiple support blocks 40 are mounted on the metal sheet group 30, the multiple support blocks 40 are used to support the motor drive connecting plate 70, the memory alloy group 60 is mounted on the metal sheet group 30 and connected to the motor drive connecting plate 70 and the metal sheet group 30, which will be further described in detail below.

[0048] Figure 2 is a three-dimensional diagram of the metal sheet group 30, Figure 3 is a front view of the metal sheet group 30, as shown Figure 2-3 As shown, the metal plate assembly 30 as a whole forms a frame structure. An opening 35 is formed in the center of the frame structure to mate with the central opening of the motor. The functional components of the metal plate assembly 30 are formed around the central opening 35. Specifically, the metal plate assembly 30 includes a first portion 31, a second portion 32, a third portion 33, and a fourth portion 34, which are formed around the central opening 35. A first corner 36 is formed between the first portion 31 and the second portion 32, a second corner 37 is formed between the second portion 32 and the third portion 33, a third corner 38 is formed between the third portion 33 and the fourth portion 34, and a fourth corner 39 is formed between the fourth portion 34 and the first portion 31.

[0049] The first portion 31 is integrally downward ( Figure 2 Multiple input terminals and grounding terminals 331 extend from the second portion 32 (in the direction shown). A first motor drive connection plate lead-out point 321 is provided on the outside of the second portion 32, and multiple input terminals and grounding terminals 331 extend downward from the third portion 33 as a whole. A second motor drive connection plate lead-out point 341 is provided on the outside of the fourth portion 34. The first motor drive connection plate lead-out point 321 and the second motor drive connection plate lead-out point 341 are respectively fixedly connected to the first motor drive connection end 721 and the second motor drive connection end 741 on the motor drive connection plate 70, for example, by bonding. The first motor drive connection plate lead-out point 321 is electrically connected to the first motor drive connection end 721, or the second motor drive connection plate lead-out point 341 is electrically connected to the second motor drive connection end 741. The motor drive connection plate lead-out points that do not have an electrical connection function serve to position and fix the motor drive connection ends.

[0050] A first connecting portion 361 and a second connecting portion 362 connected to the memory alloy group 60 are provided on the outside of the first corner portion 36, and a first lead-out point 363 and a second lead-out point 364 electrically connected to the connecting spring 50 are provided on the inside of the first corner portion 36. A first support block mounting portion 365 is provided between the first lead-out point 363 and the second lead-out point 364. For the specific functions of the above parts, please refer to the description below.

[0051] The second corner portion 37 is chamfered in shape and is provided with a second support block mounting portion 371 on the inner side. A notch is formed on the outer side of the second corner portion 37, and the notch corresponds to the fifth connection portion and the sixth connection portion on the motor drive connecting piece 70, thereby avoiding the fifth connection portion and the sixth connection portion, so that the fifth connection portion and the sixth connection portion are directly located on the base 10.

[0052] The third corner portion 38 and the first corner portion 36 are located on the same diagonal line of the metal sheet assembly 30 and have similar structures. Specifically, the third corner portion 38 is provided with a third connecting portion 381 and a fourth connecting portion 382 connected to the memory alloy assembly 30 on the outside. A third lead-out point 383 and a fourth lead-out point 384 are provided on the inside of the third corner portion 38. A third support block mounting portion 385 is provided between the third lead-out point 383 and the fourth lead-out point 384. The specific functions of these components are described below.

[0053] The fourth corner portion 39 and the second corner portion 37 are located on the same diagonal line of the metal sheet assembly 30 and have similar structures. Specifically, the fourth corner portion 39 is chamfered and has a fourth support block mounting portion 391 on its inner side. A notch is formed on the outer side of the fourth corner portion 39. This notch corresponds to the seventh and eighth connecting portions on the motor drive connecting piece 70, thereby avoiding the seventh and eighth connecting portions and allowing the seventh and eighth connecting portions to be directly located on the base 10. A support block 40 is fixedly mounted on each of the first, second, third, and fourth support block mounting portions, and the motor drive connecting piece is movably mounted on the support block 40.

[0054] Return to reference Figure 1 The base 10 is provided with a vacant slot 11 for the external pins to pass through, and the plurality of input terminals and the grounding terminal 331 extend into and pass through the vacant slot 11 of the base 10 .

[0055] Figure 4 is a three-dimensional diagram of the connecting spring 50, Figure 5 : is a front view of the connecting spring 50. Figure 4-5 As shown, the connecting spring 50 is composed of four independent connecting spring strips: a first connecting spring strip 51, a second connecting spring strip 52, a third connecting spring strip 53, and a fourth connecting spring strip 54. Each connecting spring strip 51, 52, 53, and 54 can be identical or different in shape. Preferably, each connecting spring strip 51, 52, 53, and 54 has the same shape. The shape and structure of the spring strips will be described below using the first spring strip 51 as an example. The second, third, and fourth spring strips 52, 53, and 54 are similar to the first spring strip 51 and will not be further described here.

[0056] The left and right ends of the first spring strip 51 are bent to form a first bent portion 511 and a second bent portion 512, respectively. The first bent portion 511 is formed by bending the spring strip 51 once, and the second bent portion 512 is formed by bending the spring strip 51 at least twice. A first connecting piece 513 is provided at the end of the first bent portion 511, and a second connecting piece 514 is provided at the end of the second bent portion 512. The left and right ends of the second spring strip 52 are bent to form a first bent portion 521 and a second bent portion 522, respectively. A first connecting piece 523 is provided at the end of the first bent portion 521, and a second connecting piece 524 is provided at the end of the second bent portion 522. The left and right ends of the third spring strip 53 are bent to form a first bent portion 531 and a second bent portion 532, respectively. A first connecting piece 533 is provided at the end of the first bent portion 531, and a second connecting piece 534 is provided at the end of the second bent portion 532. The left and right ends of the fourth spring strip 54 are bent to form a first bending portion 541 and a second bending portion 542 respectively. A first connecting piece 543 is provided at one end of the first bending portion 541 , and a second connecting piece 544 is provided at one end of the second bending portion 542 .

[0057] Reference Figure 4 and combined Figure 8 The second linking piece 514 of the first connecting spring strip 51 and the second connecting piece 544 of the fourth connecting spring strip 54 are respectively in electrical or signal communication with the first lead-out point 363 and the second lead-out point 364 of the first corner portion 36 of the metal plate assembly 30. The second connecting piece 534 of the third connecting strip 53 and the second connecting piece 524 of the second connecting strip 52 are respectively fixedly connected to and in electrical or signal communication with the third lead-out point 383 and the fourth lead-out point 384 of the second corner portion 38. The first connecting piece 513 of the first reed strip 51 and the first connecting piece 523 of the second reed strip 52 are respectively fixedly connected to and in signal communication with the first connection point 82 and the second connection point 81 at the bottom of the motor. The first connecting piece 533 of the third reed strip 53 and the first linking piece 543 of the fourth reed strip 54 are respectively fixedly connected to and in electrical or signal communication with the third lead-out point 83 and the fourth lead-out point 84 at the bottom of the motor 80. Thus, the motor 80 is in signal and electrical communication with the metal plate assembly 30 through the connecting spring strips 50.

[0058] Figure 6 is a perspective view of the motor drive connecting piece 70, Figure 7 70 is a front view of the motor drive connecting piece 70. Figure 6-7As shown, the motor drive connecting plate 70 is generally formed in a substantially rectangular shape and has an opening 75 in the center. This opening 75 cooperates with the central opening 85 of the motor and the central opening 35 of the metal plate assembly 30 to accommodate the lens. The shape of the motor drive connecting plate 70 matches the shape of the metal plate assembly 30 for mounting on the metal plate assembly 30.

[0059] Specifically, the motor drive connecting piece 70 surrounds the opening 75 to form a first side portion 71, a second side portion 72, a third side portion 73, and a fourth side portion 74. The connection between the first side portion 71 and the second side portion 72 forms a first rounded corner 76, the connection between the second side portion 72 and the third side portion 73 forms a second rounded corner 77, the connection between the third side portion 73 and the fourth side portion 74 forms a third rounded corner 78, and the connection between the fourth side portion 74 and the first side portion 71 forms a fourth rounded corner 79.

[0060] A first connection portion 771 and a second connection portion 772 connected to the memory alloy group 60 extend from the outer side of the second fillet 77. A third connection portion 792 and a fourth connection portion 791 connected to the memory alloy group 60 extend from the outer side of the fourth fillet 79. See the following description for details.

[0061] A first motor drive connection portion 711 extends integrally from the outer side of the first side portion 71. The first motor drive connection portion 711 extends along the outer side of the first side portion 71 to the first rounded corner 76, and is bent along the arc of the first rounded corner 76 at the first rounded corner 76 to the outer side of the second side portion, and extends to the outer side of the second side portion to form a first motor drive connection end 721.

[0062] The third side portion 73 is opposite to the first side portion 71 and has a similar structure. Specifically, a third motor drive connection portion 731 extends integrally from the outer side of the third side portion 73. The third motor drive connection portion 731 extends along the outer side of the third side portion 73 to the third rounded corner 78, bends along the arc of the third rounded corner 78 at the third rounded corner 78 to the outer side of the fourth side portion 74, and extends outward from the outer side of the fourth side portion 74 to form a second motor drive connection end 741.

[0063] The motor drive connection portion of the present invention is an integral structure with the motor drive connection piece, and in one embodiment, the motor drive connection portion is extended from the midpoint of one side of the motor drive connection piece and extends to the midpoint of the adjacent side, which can increase the length of the motor drive connection portion and provide better elastic force.

[0064] The first motor drive connection end 721 and the second motor drive connection end 741 are respectively fixedly connected to the first motor drive connection plate lead-out point 321 and the second motor drive connection plate lead-out point 341 on the metal plate assembly 30, for example, by bonding. The first motor drive connection plate lead-out point 321 is electrically connected to the first motor drive connection end 721, or the second motor drive connection plate lead-out point 341 is electrically connected to the second motor drive connection end 741. The motor drive connection plate lead-out points that do not have an electrical connection function serve to position and fix the motor drive connection ends.

[0065] In this embodiment, the first motor drive connection end 721 is slightly wider than the width of the main part of the first motor drive connection part 711, and the second motor drive connection end 741 is slightly wider than the width of the main part of the second motor drive connection part 731 to better connect with the motor drive connection point.

[0066] Figure 8 This is a three-dimensional diagram of an assembly of a metal sheet group, a plurality of support blocks, a connecting spring, and a memory alloy group according to an embodiment of the present invention. Figure 9 This is a three-dimensional diagram of an assembly of a metal sheet group, a plurality of support blocks, a connecting spring, a memory alloy group, and a motor drive connecting sheet according to an embodiment of the present invention. Figure 10 This is a three-dimensional exploded view of an assembly consisting of a base 10, a fixing plate 20, a metal sheet group 30, a plurality of support blocks 40, a connecting spring 50, a memory alloy group 60, a motor drive connecting sheet 70, and a motor 80. Figure 11 FIG. 8 is a bottom view of a motor 80 according to an embodiment. Figure 8-11 As shown, the metal sheet group 30 is mounted on the fixing plate 20 , the fixing plate 20 is mounted on the base 10 , and the connecting spring 50 is mounted on the metal sheet group 30 .

[0067] The second linking piece 514 of the first connecting spring strip 51 and the second connecting piece 544 of the fourth connecting spring strip 54 are respectively in electrical or signal communication with the first lead-out point 363 and the second lead-out point 364 of the first corner portion 36 of the metal sheet assembly 30. The second connecting piece 534 of the third connecting spring strip 53 and the second connecting piece 524 of the second connecting spring strip 52 are respectively fixedly connected to and in electrical or signal communication with the third lead-out point 383 and the fourth lead-out point 384 of the second corner portion 38. The first connecting piece 513 of the first connecting spring strip 51 and the first connecting piece 523 of the second connecting spring strip 52 are respectively fixedly connected to and in signal communication with the first connection point 82 and the second connection point 81 at the bottom of the motor. The first connecting piece 533 of the third connecting spring strip 53 and the first linking piece 543 of the fourth connecting spring strip 54 are respectively fixedly connected to and in electrical or signal communication with the third lead-out point 83 and the fourth lead-out point 84 at the bottom of the motor 80. Thus, the motor 80 is in signal and electrical communication with the metal sheet assembly 30 via the connecting spring strips 50.

[0068] Multiple support blocks 40 (four support blocks in this embodiment) are respectively placed on the first support portion 365, the second support portion 371, the third support portion 385, and the fourth support portion 391 of the metal plate assembly 30. The metal plate assembly 30 is movably mounted on the support blocks 72, and the support blocks 72 separate the fixed plate 20, the base 10, and the metal plate assembly 30. The motor drive connecting plate 70 is supported on the metal plate assembly 40 by the multiple support blocks 40 and is movable relative to the metal plate assembly 40. The first connecting portion 771 and the second connecting portion 772 of the motor drive connecting plate 70 are located above the second corner 37 of the metal plate assembly 30, and the third connecting portion 792 and the fourth connecting portion 791 are located above the fourth corner 39. The first motor drive connecting end 721 and the second motor drive connecting end 741 are respectively fixedly connected to the first motor drive connecting plate lead-out point 321 and the second motor drive connecting plate lead-out point 341 on the metal plate assembly 30, for example, by bonding. The first motor drive connection plate lead-out point 321 is electrically connected to the first motor drive connection end 721 or the second motor drive connection plate lead-out point 341 is electrically connected to the second motor drive connection end 741. The motor drive connection plate lead-out point that does not have an electrical connection function and the motor drive connection end serve the purpose of positioning and fixing.

[0069] The memory alloy group 40 includes four memory alloy wires. The two ends of the first memory alloy wire are respectively fixed to the first connection portion 771 of the motor drive connecting piece 70 and the first connection portion 361 of the metal plate group 30, thereby electrically connecting the first connection portion 771 of the motor drive connecting piece 70 and the first connection portion 361 of the metal plate group 30. The two ends of the second memory alloy wire are respectively fixed to the second connection portion 772 of the motor drive connecting piece 70 and the second connection portion 362 of the metal plate group 30, thereby electrically connecting the second connection portion 772 of the motor drive connecting piece 70 and the second connection portion 362 of the metal plate group 30. 62 are electrically connected, two ends of the third memory alloy wire are respectively fixed to the third connection part 792 of the motor drive connecting plate 70 and the third connection part 383 of the metal plate group 30, thereby electrically connecting the third connection part 792 of the motor drive connecting plate 70 and the third connection part 383 of the metal plate group 30, and two ends of the fourth memory alloy wire are respectively fixed to the fourth connection part 791 of the motor drive connecting plate 70 and the fourth connection part 384 of the metal plate group 30, thereby electrically connecting the fourth connection part 791 of the motor drive connecting plate 70 and the fourth connection part 384 of the metal plate group 30.

[0070] The anti-shake structure of the present invention achieves anti-shake compensation by using a shape memory alloy wire. The shape memory alloy wire, a nickel-titanium alloy, shrinks when heated and expands when cooled. When current flows into the shape memory alloy wire, it begins to contract due to the heat, overcoming the lateral elastic force. When the current is cut off, the biasing elastic force overcomes the elastic force of the shape memory alloy wire, causing it to expand when cooled.

[0071] Specifically, the memory alloy wire 40 is fixed between the metal sheet group 30 and the motor-driven connecting piece 70. The memory alloy wire 40 contracts or expands under the action of the current and drives at least part of the motor-driven connecting piece 70 to move in a predetermined direction, for example, along the X-axis or Y-axis. The X-axis and the Y-axis are on a plane perpendicular to the optical axis of the lens and are perpendicular to each other. The anti-shake structure adjusts the size of the current and utilizes the thermal contraction and cold expansion characteristics of the memory alloy wire 40 to change the length of the memory alloy wire 40, so that at least part of the motor-driven connecting piece 70 is adjusted along the X-axis and / or Y-axis, and then the pulling force of the memory alloy wire 40 is used to complete the purpose of driving the motor, so that the motor can quickly adjust its position along the X-axis and / or Y-axis, thereby achieving the purpose of moving the entire lens at a micro distance, changing the focal length, and achieving a clear image. The memory alloy wire has the advantages of low power, high rigidity and stability, which can greatly improve the response rate of the device.

[0072] While the preferred embodiments of the present invention have been described in detail above, it should be understood that, after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. Such equivalents also fall within the scope of the claims appended hereto.

Claims

1. An anti-shake mechanism, characterized in that: The anti-shake mechanism includes a metal sheet group, a connecting spring, a memory alloy group, a motor drive connecting sheet and a base. The metal sheet group is fixed on the base, and the motor driving connecting piece is movably arranged on a side of the metal sheet group away from the base to connect to the motor. The memory alloy group is connected between the metal plate group and the motor drive connecting plate and drives at least a portion of the motor drive connecting plate to move relative to the metal plate group when the power is turned on and off. The connecting spring is arranged on a side of the metal sheet group away from the base and electrically connects the metal sheet group to the motor, wherein The motor drive connection plate is provided with a first motor drive connection end and a second motor drive connection end, the metal plate group is provided with a first motor drive lead-out point and a second motor drive lead-out point fixedly connected to the first motor drive connection end and the second motor drive connection end, and only one of the first motor drive lead-out point and the second motor drive lead-out point has a conductive function; An opening is formed in the middle of the metal sheet group, and a first corner, a second corner, a third corner, and a fourth corner are formed around the opening, wherein the first corner and the third corner located on the diagonal line are respectively provided with a first connecting portion, a second connecting portion, a third connecting portion, and a fourth connecting portion connected to the memory alloy group; The first connecting portion and the second connecting portion are arranged on the outside of the first corner portion, and the inside of the first connecting portion and the second connecting portion are provided with a first lead-out point and a second lead-out point that are electrically connected or signal-connected with the connecting spring, and the third connecting portion and the fourth connecting portion are arranged on the outside of the third corner portion, and the inside of the third corner portion is provided with a third lead-out point and a fourth lead-out point that are electrically connected or signal-connected with the connecting spring; the anti-shake mechanism also includes a plurality of support blocks, which are fixedly mounted on the metal plate group and movably support the motor drive connecting plate on the metal plate group.

2. The anti-shake mechanism according to claim 1, characterized in that: The first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion are wire clamps formed integrally with the metal sheet group.

3. The anti-shake mechanism according to claim 1, characterized in that: A first support block mounting portion is provided between the first lead-out point and the second lead-out point, and a third support block mounting portion is provided between the third lead-out point and the fourth lead-out point.

4. The anti-shake mechanism according to claim 1, characterized in that: The first part, the second part, the third part and the fourth part of the metal sheet group are formed around the opening, the first corner is formed between the first part and the second part, the second corner is formed between the second part and the third part, the third corner is formed between the third part and the fourth part, and the fourth corner is formed between the fourth part and the first part, and the first part and the third part respectively extend a plurality of input terminals and grounding terminals downward as a whole.

5. The anti-shake mechanism according to claim 4, characterized in that: The base is provided with a vacant slot, and the plurality of input terminals and the grounding terminal extend into and pass through the vacant slot.

6. The anti-shake mechanism according to claim 1, characterized in that: The connecting spring is formed by four independent connecting spring strips.

7. The anti-shake mechanism according to claim 6, characterized in that: The left and right ends of the connecting spring strip are respectively provided with connecting pieces for electrical or signal communication with the metal sheet group or the bottom of the motor.

8. The anti-shake mechanism according to claim 7, characterized in that: The left and right ends of the connecting spring strip are respectively bent to form a first bent portion and a second bent portion, and a first connecting piece is provided at one end where the first bent portion is located, which is fixedly connected to the connection point at the bottom of the motor and is in signal or electrical communication, and a second connecting piece is provided at one end where the second bent portion is located, which is in electrical or signal communication with the lead-out point on the metal sheet group.

9. The anti-shake mechanism according to claim 1, characterized in that: A central opening is provided in the middle of the motor drive connecting plate, and a first side, a second side, a third side and a fourth side of the motor drive connecting plate are formed around the central opening. The connection between the first side and the second side forms a first rounded corner, the connection between the second side and the third side forms a second rounded corner, the connection between the third side and the fourth side forms a third rounded corner, and the connection between the fourth side and the first side forms a fourth rounded corner, wherein the first rounded corner and the third rounded corner located on one diagonal line and the second rounded corner and the fourth rounded corner located on another diagonal line extend out integrally from the outer sides to form a connection portion connected to the memory alloy group.

10. The anti-shake mechanism according to claim 9, characterized in that: A first motor drive connection portion extends integrally from the outer side of the first side portion, the first motor drive connection portion extends along the outer side of the first side portion to the first rounded corner, is bent along the arc of the first rounded corner at the first rounded corner to the outer side of the second side portion, and extends on the outer side of the second side portion to form the first motor drive connection end, and A third motor drive connection portion extends integrally from the outer side of the third side portion, and the third motor drive connection portion extends along the outer side of the third side portion to the third rounded corner, and is bent along the arc of the third rounded corner at the third rounded corner to the outer side of the fourth side portion, and extends from the outer side of the fourth side portion to form the second motor drive connection end.

11. The anti-shake mechanism according to claim 10, characterized in that: The first motor drive connection end and the second motor drive end are fixedly connected to the first motor drive connection plate lead-out point and the second motor drive connection plate lead-out point on the metal plate group, respectively.

12. The anti-shake mechanism according to claim 1, wherein: The anti-shake mechanism further includes a fixing plate, which is arranged between the metal sheet group and the base to fix the metal sheet group to the base.

13. The anti-shake mechanism according to claim 1, wherein: The memory alloy group includes four memory alloy wires, and the two ends of the first memory alloy wire are respectively fixed to the first connection part of the motor drive connecting plate and the first connection part of the metal plate group, thereby electrically connecting the first connection part of the motor drive connecting plate and the first connection part of the metal plate group.

Images