Actuating assembly and actuator

Abstract

The embodiment of the utility model discloses an actuating assembly and an actuator. The actuating assembly comprises a circuit board, a fixing assembly and an actuating line, the fixing assembly comprises a first conductive layer, a conductive adhesive layer and a cover plate, the two ends of the actuating line extend into the conductive adhesive layer to be electrically connected with the conductive adhesive layer, the conductive adhesive layer is electrically connected with the first conductive layer, and the first conductive layer is electrically connected with the circuit board. After the first conductive layer and the conductive adhesive layer are heated, the welding effect can be achieved, the actuating wire is effectively fixed, efficient conduction of current can be achieved, and the product size is reduced.

Description

Technical Field

[0001] This utility model relates to the field of actuator device technology, specifically to an actuator component and an actuator. Background Technology

[0002] Existing technologies use actuators to control minute displacements. The movement of the actuator is controlled by an actuation wire, typically a shape memory alloy wire. When the temperature conditions of the shape memory alloy change, it deforms. In operation, a current is passed through the actuation wire, generating Joule heating. This changes the temperature environment of the actuation wire, causing it to deform, thus enabling the actuator to output minute displacements to external components. By changing the current, the temperature environment of the actuation wire changes, allowing the user to control the deformation of the wire and achieve the actuator effect.

[0003] Current products mostly use wire clips to secure the actuator wires, but the actuator wires have a very small diameter, and using wire clips can easily lead to problems such as failure to secure them or breakage. At the same time, because wire clips have a certain size, it is difficult to reduce the size of the product. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an actuation component and actuator that achieves better fixing effect, realizes efficient conduction, and reduces product size.

[0005] In a first aspect, embodiments of the present invention provide an actuation component, comprising:

[0006] Circuit board;

[0007] At least one fixing component, each fixing component including a first conductive layer, a conductive adhesive layer and a cover plate, the first conductive layer being disposed on the circuit board and electrically connected to the circuit board, the conductive adhesive layer being disposed on the first conductive layer and electrically connected to the first conductive layer, and the cover plate covering the conductive adhesive layer;

[0008] An actuation wire is located on the outside of the circuit board, and both ends of the actuation wire extend into the conductive adhesive layer and are electrically connected to the conductive adhesive layer.

[0009] Optionally, the fixing component is disposed at one end of the circuit board along the width direction, and the two ends of the actuation line are respectively extended from the two ends of the conductive adhesive layer of the fixing component in the length direction and extend towards the middle, and the first conductive layer covers the projection of the actuation line on the circuit board.

[0010] Optionally, the first conductive layer includes two first conductive sheets, which are disposed side by side on the circuit board with a gap between them. The conductive adhesive layer is disposed on the two first conductive sheets, fills the gap between the two first conductive sheets and is electrically connected to the circuit board. The two ends of the conductive adhesive layer extend beyond the outside of the two first conductive sheets and extend to the edge of the circuit board along its length.

[0011] Optionally, there are two fixing components, which are disposed at both ends of the circuit board along the length direction. The two ends of the actuation wire extend into the conductive adhesive layer from the same end of the two fixing components along the length direction. The two first conductive layers cover the projection of the actuation wire on the circuit board.

[0012] Optionally, the portion of the actuation wire extending into the conductive adhesive layer is parallel to the edge of the conductive adhesive layer or has at least one curved segment.

[0013] Optionally, the first conductive layer includes at least two first conductive elements, each of which is electrically connected to the conductive adhesive layer and the circuit board.

[0014] Optionally, the actuation component further includes a second conductive layer disposed between the conductive adhesive layer and the cover plate;

[0015] The second conductive layer includes at least two second conductive elements, which are electrically connected to the conductive adhesive layer, and the positions of the second conductive elements correspond one-to-one with those of the first conductive elements.

[0016] Optionally, the actuation component further includes a second conductive layer disposed between the conductive adhesive layer and the cover plate;

[0017] The second conductive layer includes a second conductive element, which is electrically connected to the conductive adhesive layer, and the position of the second conductive element is located within the projection of the actuation line on the circuit board.

[0018] Secondly, embodiments of the present invention provide an actuator, comprising:

[0019] The actuator body has a second rotating shaft and a first rotating shaft disposed on its top surface;

[0020] A brake disc is disposed on the top surface of the actuator body and rotatably connected to the first rotating shaft. A first rotating element protrudes from one end of the brake disc near the edge of the actuator body.

[0021] A swing arm is disposed on the top surface of the actuator body and rotatably connected to the second rotating shaft. A second rotating component protrudes from the swing arm, and the end of the swing arm adjacent to the brake disc abuts against the brake disc.

[0022] Both the first driving member and the second driving member adopt the actuation assembly. The first driving member and the second driving member are respectively disposed on the top surface of the actuator body. The first actuation line of the first driving member is connected to the first rotating member, and the second actuation line of the second driving member is connected to the second rotating member.

[0023] Optionally, the actuator further includes a mounting base connected to one end of the top surface of the actuator body, the first driving member and the second driving member are respectively disposed on both sides of the mounting base, and the end of the actuator away from the mounting base extends to form a positioning platform.

[0024] Optionally, the actuator further includes a first elastic element, a fixed column is mounted on the positioning platform, and the two ends of the first elastic element are respectively connected to the fixed column and the end of the swing arm away from the brake disc.

[0025] Optionally, the mounting base has at least one steering block protruding from it, and the second actuation line is connected to the second rotating member after being turned by at least one of the steering blocks.

[0026] Optionally, the actuator further includes a second elastic element disposed between the brake disc and the actuator body and abutting against the brake disc and the actuator body.

[0027] Optionally, a portion of the first drive member and / or the second drive member is embedded within the actuator body.

[0028] Optionally, the mounting base has a receiving groove, and the first driving member and / or the second driving member are disposed in the receiving groove.

[0029] This utility model provides an actuation component and an actuator. The actuation component includes a circuit board, a fixing component, and an actuation wire. The fixing component includes a first conductive layer, a conductive adhesive layer, and a cover plate. Both ends of the actuation wire extend into the conductive adhesive layer and are electrically connected to it. The conductive adhesive layer is electrically connected to the first conductive layer, and the first conductive layer is electrically connected to the circuit board. Heating the first conductive layer and the conductive adhesive layer achieves a welding effect, effectively fixing the actuation wire and enabling efficient current conduction, thus reducing product size. Attached Figure Description

[0030] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0031] Figure 1 This is a front perspective view of an actuation component according to an embodiment of the present invention;

[0032] Figure 2 This is a front view of an actuation component according to an embodiment of the present invention;

[0033] Figure 3 This is a cross-sectional view of an actuation component according to an embodiment of the present invention;

[0034] Figure 4 This is a three-dimensional view of the back of the actuation component according to an embodiment of the present invention;

[0035] Figure 5 This is a front perspective view of the actuation component according to another embodiment of the present invention;

[0036] Figure 6 This is a perspective view of the back of the actuation component according to another embodiment of the present invention;

[0037] Figure 7 This is a three-dimensional front view of the actuation component after removing the cover plate, the second conductive layer and the conductive adhesive layer according to another embodiment of the present invention;

[0038] Figure 8 This is a three-dimensional schematic diagram of a fixing component with a curved section of an actuation line according to an embodiment of the present invention;

[0039] Figure 9 This is a three-dimensional schematic diagram of a fixing assembly with a bent section of the actuation line of this utility model, in which the second conductive layer and the conductive adhesive layer have been removed.

[0040] Figure 10 This is a front perspective view of an actuator according to an embodiment of the present invention;

[0041] Figure 11 This is a perspective view of the back of the actuator according to an embodiment of the present invention;

[0042] Figure 12 This is a front view of an actuator according to an embodiment of the present invention;

[0043] Figure 13 This is a cross-sectional view of the actuator portion according to an embodiment of the present invention;

[0044] Figure 14 This is a cross-sectional view of the fixing structure before processing according to an embodiment of the present invention;

[0045] Figure 15 This is a top view of the arrangement of the first conductive components on a circuit board according to an embodiment of the present invention;

[0046] Figure 16This is a cross-sectional view of the fixed structure after molding according to an embodiment of this utility model;

[0047] Figure 17 This is a cross-sectional view of the fixing structure before processing, according to another embodiment of this utility model;

[0048] Figure 18 This is a top view of the arrangement of the second conductive elements on the cover plate according to another embodiment of the present invention;

[0049] Figure 19 This is a cross-sectional view of the fixed structure after molding according to another embodiment of this utility model;

[0050] Figure 20 This is a cross-sectional view of the fixing structure before processing, according to another embodiment of this utility model;

[0051] Figure 21 This is a cross-sectional view of the fixed structure after molding according to another embodiment of this utility model;

[0052] Figure 22 This is a schematic diagram of an electronic device according to an embodiment of the present invention;

[0053] Figure 23 This is a schematic diagram of an electronic device according to another embodiment of the present invention;

[0054] Figure 24 This is a schematic diagram of an electronic device according to another embodiment of the present invention.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1-Actuation assembly; 11-Actuation wire; 12-Conductive adhesive layer; 131-First conductive layer; 1311-First conductive element; 132-Second conductive layer; 1321-Second conductive element; 14-Cover plate; 15-Circuit board; 2-Actuator; 21-Actuator body; 22-Mounting base; 221-First steering block; 222-Second steering block; 23-Fixing post; 24-Second elastic element; 251-First rotating shaft; 252-Second rotating shaft; 26-Positioning stage; 27-Receiving groove; 31-Brake disc; 32-First rotating element; 33-Swing arm; 34-Second rotating element; 4-First elastic element; 51-First actuation wire; 52-First driving element; 53-Second actuation wire; 54-Second driving element. Detailed Implementation

[0057] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0058] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0059] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0061] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0062] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0063] Anisotropic conductive film is a special electronic material composed of conductive particles and insulating adhesive. The conductivity of anisotropic conductive film varies at different locations; where conductive particles are dispersed, it is difficult to form an effective current path, exhibiting insulation; where conductive particles are concentrated or fragmented, an effective current path can be formed, exhibiting conductivity. Therefore, anisotropic conductive film has the characteristics of adhesion and conductivity only in the direction perpendicular to the pressure plane. To enable current conduction when bonding and fixing circuit components, anisotropic conductive film is used as the conductive adhesive layer 12, such as... Figures 14-16As shown. During the formation of the fixed component, the anisotropic conductive film needs to be heated and pressurized to break the conductive particles and fuse them with the circuit elements, achieving both conductivity and fixation. For the fixed component formed after heating and pressurization, the broken conductive particles gather between the actuator line 11 and the first conductive layer 131, achieving conductivity. The insulating adhesive fills the remaining positions, achieving unidirectional conductivity of the conductive adhesive layer 12 only in the vertical direction. Simultaneously, the insulating adhesive forms a stable and reliable connection between the cover plate 14, the actuator line 11, and the first conductive layer 131. The first conductive layer 131 is fused to the circuit board 15, forming an effective fixing structure.

[0064] Reference Figures 1-2 The actuation component 1 of this embodiment includes a circuit board 15, at least one fixing component, and an actuation wire 11. The fixing component fixes the actuation wire 11 to the circuit board 15, achieving a stable and effective connection, preventing the actuation wire 11 from failing to be fixed or breaking, and enabling miniaturization without occupying too much space. The number of fixing components is not limited and can be increased or decreased according to actual needs to ensure that the actuation wire 11 can be effectively fixed. The actuation wire 11 is made of shape memory alloy. Current flows through the circuit board 15 to the actuation wire 11 via the fixing component, generating Joule heating that causes the actuation wire 11 to deform, thereby driving external components. Integrated circuit elements are disposed on the circuit board 15, extending to the edge of the circuit board 15 for electrical connection with the fixing component, thus enabling circuit conduction. The actuation wire 11 is located on the outside of the circuit board 15. Both ends of the actuation wire 11 extend into the fixing component for electrical connection. At this point, the actuation wire 11, the fixing component, and the circuit board 15 together form a closed ring structure. The portion of the actuation wire 11 outside the circuit board 15 forms a U-shaped structure. The actuation component 1 can control the movement of the external component through this U-shaped portion. The shape change of the actuation wire 11 after being heated causes changes in its length and other conditions, enabling controllable small-amplitude movement of the external component. That is, by changing the current according to the required movement amplitude, the deformation amplitude of the actuation wire 11 can be controlled.

[0065] Actuation component 1 includes at least one fixing component, and the number of fixing components is not limited. (See reference...) Figures 1-4 , Figure 3 yes Figure 2A cross-sectional view of section AA is shown. Each fixing component includes a first conductive layer 131, a conductive adhesive layer 12, and a cover plate 14. The conductive adhesive layer 12 is disposed between the first conductive layer 131 and the cover plate 14, and the actuation wire 11 extends into the conductive adhesive layer 12 for fixation. The first conductive layer 131 is disposed on and electrically connected to the circuit board 15 to achieve efficient conduction between the integrated circuit components on the circuit board 15 and the conductive adhesive layer 12. To achieve more stable and effective fixation, the conductive adhesive layer 12 is disposed on the first conductive layer 131 and electrically connected to it to achieve electrical connection and fixation between the first conductive layer 131 and the actuation wire 11. Since the conductive adhesive layer 12 is not completely conductive but requires the breakage of its internal conductive particles during processing to achieve conductivity, and given the precision of integrated circuit components, using the first conductive layer 131 avoids the problems of low conductivity and poor heat dissipation when integrated circuit components are directly connected to the conductive adhesive layer 12. The cover plate 14 is typically made of insulating material to prevent leakage and to protect the fixed components.

[0066] Based on practical considerations, since the maximum tensile strength of shape memory alloy wires is typically 50 Newtons, and when the actuation component 1 is operational, the actuation wire 11, which generates 1 Newton of tensile strength, needs to be fixed for approximately 400 micrometers to achieve effective and stable fixation, the maximum length of the actuation wire 11 that needs to be fixed is approximately 20 millimeters. Furthermore, to enable the manufactured actuation component 1 to drive the external component to move stably and effectively, it is feasible to fix an actuation wire 11 at least 30 micrometers in length. Therefore, the length of the actuation wire 11 fixed in the conductive adhesive layer 12 is between 0.03 millimeters and 20 millimeters.

[0067] In some embodiments, the first conductive layer 131 may be configured as a metal contact layer. In this case, refer to... Figure 14 , Figure 15 , Figure 16The first conductive layer 131 includes at least two first conductive elements 1311, which are metal contacts. In other words, the first conductive layer 131 is actually composed of at least two first conductive elements 1311 arranged in an array. The shape and size of the first conductive layer 131 are determined by the shape and size of the projection of the actuation line 11 onto the circuit board 15, and the number of first conductive elements 1311 also varies with different shapes and sizes of the first conductive layer 131. Each first conductive element 1311 is electrically connected to the conductive adhesive layer 12 and the circuit board 15. On the circuit board 15 side, the first conductive elements 1311, i.e., the metal contacts, can make more efficient and precise electrical connections with integrated circuit components, achieving effective conduction. On the conductive adhesive layer 12 side, the array of first conductive elements 1311 forms a first conductive layer 131 with a larger surface area, which can better bond with the conductive particles in the conductive adhesive layer 12, improving the bonding force between the two and achieving a tighter bond after welding, avoiding the problem of fixation failure. The cover plate 14 covers the conductive adhesive layer 12 to protect the fixed structure.

[0068] In some embodiments, refer to Figures 5-6 The fixing component is a single unit, located at one end of the circuit board 15 along its width. To maximize the length of the fixing component for fixing the actuation wire 11, the two ends of the actuation wire 11 are respectively extended into the middle by the conductive adhesive layer 12 of the fixing component in the length direction. This maximizes the utilization of space within the fixing component, achieves better fixing effect, and prevents the actuation wire 11 from failing to be fixed or breaking. The first conductive layer 131 covers the projection of the actuation wire 11 on the circuit board 15, increasing the contact area between the first conductive layer 131 and the actuation wire 11, as well as the conductive adhesive layer 12 disposed between the first conductive layer 131 and the actuation wire 11. This allows for efficient conduction and tight bonding between the actuation wire 11 and the first conductive layer 131, and significantly reduces the space occupied by the fixing component compared to the wire clamp.

[0069] Reference Figures 5-7The first conductive layer 131 includes two first conductive sheets, which serve as the positive and negative terminals of the circuit within the actuation line 11, respectively, and are arranged side-by-side on the circuit board 15 at intervals. Each first conductive sheet is also structured by an array of first conductive elements 1311, i.e., metal contacts, to increase the contact area and achieve a more stable connection and more efficient conduction. A conductive adhesive layer 12 is disposed on the two first conductive sheets to achieve conduction between the first conductive sheets and the actuation line 11, while also filling the gap between the two first conductive sheets and connecting to the circuit board 15. It extends beyond the outer sides of the two first conductive sheets at both ends and reaches the edge of the circuit board 15 along its length. Since the conductive adhesive layer 12 has a unidirectional conduction characteristic that conducts only in the vertical direction, the conductive adhesive layer 12 filled between the two first conductive sheets is actually insulating and will not cause a short circuit between the two first conductive sheets, which serve as the positive and negative terminals. Meanwhile, the conductive adhesive layer 12 also has the function of adhesion and fixation. The portion of the conductive adhesive layer 12 set between the two first conductive sheets and extending to the edge of the circuit board 15 can make the structure of the entire fixing assembly more stable and reliable, avoid the problems of fixing failure and actuation wire 11 breakage, and significantly reduce the space occupied by the fixing assembly compared to the wire clamp.

[0070] like Figure 7 As shown, when the fixing component is disposed at one end of the circuit board 15 along its width, the two ends of the actuation wire 11 extending into the fixing component will actually form a relative positional relationship. Depending on the actual situation, the two ends of the actuation wire 11 extending into the fixing component may or may not be in contact. For the actuation wire 11, as long as Joule heating is generated inside due to the current, the actuation wire 11 can be deformed.

[0071] In some embodiments, refer to Figures 1-4 Two fixing components are provided at both ends of the circuit board 15 along its length. To maximize the length of the fixing components used to fix the actuation wire 11, both ends of the fixing components extend to the edge of the circuit board 15. The two ends of the actuation wire 11 extend from the same end of each fixing component along its length into the conductive adhesive layer 12, extending to the bottom of the conductive adhesive layer 12 along its length to maximize the utilization of the fixing component length. Two first conductive layers 131, acting as positive and negative electrodes respectively, cover the projection of the actuation wire 11 onto the circuit board 15, increasing the contact area between the first conductive layer 131 and the actuation wire 11, as well as the conductive adhesive layer 12 disposed between the first conductive layer 131 and the actuation wire 11. This allows for efficient conduction and a tight bond between the actuation wire 11 and the first conductive layer 131, preventing fixing failure and breakage of the actuation wire 11.

[0072] Depending on the specific circumstances, in some embodiments, reference is made to Figure 7 , Figure 8 , Figure 9The portion of the actuator wire 11 extending into the conductive adhesive layer 12 can be parallel to the edge of the conductive adhesive layer 12, or it can have at least one bent section, in order to increase the projected area of ​​the actuator wire 11 on the circuit board 15, thereby achieving a tighter and more reliable connection and more efficient conduction, and significantly reducing the space occupied compared to the wire clamp.

[0073] In some embodiments, refer to Figures 1-8 , Figures 17-21 The actuation assembly 1 also includes a second conductive layer 132 disposed between the conductive adhesive layer 12 and the cover plate 14, for achieving a tighter connection between the cover plate 14 and the conductive adhesive layer 12. Since the cover plate 14 itself is typically made of insulating material, the connection between the cover plate 14 and the conductive adhesive layer 12 is mainly achieved through the adhesion of the insulating adhesive. The second conductive layer 132 is made of metal, which can form a further fusion relationship with the broken conductive particles during hot pressing, making the bond between the cover plate 14 and the conductive adhesive layer 12 tighter and more reliable, preventing fixing failure. Simultaneously, the second conductive layer 132 also enables the current to flow more complexly within the actuation wire 11, enhancing circuit conductivity and Joule heating. Since the second conductive layer 132 mainly serves as an auxiliary connection and enhances circuit conductivity, its area can be reduced to minimize the use of metal.

[0074] Based on the actual situation, refer to Figure 17 , Figure 18 , Figure 19 The second conductive layer 132 may include at least two second conductive elements 1321 or one second conductive element 1321, which are electrically connected to the conductive adhesive layer 12. The second conductive element 1321 is a micro-metal structure such as a metal microsphere, forming a fusion effect with the conductive particles in the conductive adhesive layer 12. When there are at least two second conductive elements 1321, their positions correspond one-to-one with the first conductive elements 1311, achieving a symmetrical distribution on both sides of the actuation line 11. Since the conductive adhesive layer 12 has vertical conductivity, the second conductive element 1321 can participate in assisting the current distribution within the actuation line 11, enhancing current conduction and Joule heating effects. Figure 20 , Figure 21 As shown, when there is only one second conductive element 1321, the position of the second conductive element 1321 corresponds to the actuation line 11. At this time, the position of the second conductive element 1321 is located within the projection of the actuation line 11 on the circuit board 15. It can also enhance the current conduction and Joule heating effect through the vertical conductivity of the conductive adhesive layer 12.

[0075] This embodiment of the invention also provides an actuator 2, as shown in the reference... Figures 10-13 , Figure 13 for Figure 12A cross-sectional view of a portion of section BB. The actuator 2 includes an actuator body 21, a brake disc 31, a swing arm 33, a first drive member 52, and a second drive member 54. The brake disc 31, swing arm 33, first drive member 52, and second drive member 54 are mounted on the actuator body 21. The brake disc 31 and swing arm 33 abut against each other and are controlled by the first drive member 52 and the second drive member 54, respectively. The displacement generated by the actuator 2 is ultimately output outward through the swing arm 33, driving the structure to be moved to achieve minute and precise movements. A second rotating shaft 252 and a first rotating shaft 251 are provided on the top surface of the actuator body 21 for connection with the brake disc 31 and the swing arm 33. The brake disc 31 is located on the top surface of the actuator body 21 and rotatably connected to the first rotating shaft 251. A first rotating member 32 protrudes from one end near the edge of the actuator body 21, and the first rotating member 32 is used to connect with the first drive member 52. A swing arm 33 is disposed on the top surface of the actuator body 21 and rotatably connected to the second rotating shaft 252. A second rotating member 34 protrudes from the swing arm 33 and is used to connect with the second driving member 54. The end of the swing arm 33 adjacent to the brake disc 31 abuts against the brake disc 31 and is subject to the braking and de-braking state changes achieved by the first driving member 52 and the second driving member 54. Depending on the actual situation, the actuator 2 may also include a mounting base 22, which is connected to one end of the top surface of the actuator body 21 to facilitate the installation of the first driving member 52, the second driving member 54, and other structures.

[0076] like Figure 10 , Figure 11 As shown, both the first driving member 52 and the second driving member 54 employ actuation assembly 1. The first driving member 52 and the second driving member 54 are respectively disposed on both sides of the mounting base 22 on the top surface of the actuator body 21, controlling the brake disc 31 and the swing arm 33 respectively. The first driving member 52 controls the brake disc 31 through the first actuation member. The first actuation line 51 is connected to the first rotating member 32, which extends into the loop formed by the first actuation line 51 and the first driving member 52. When the first actuation line 51 deforms due to Joule heating generated by the current, causing a change in length, the circumference of the loop formed by the first actuation line 51 and the first driving member 52 changes, driving the first rotating member 32 and causing the brake disc 31 to rotate around the first rotating shaft 251. For example, refer to... Figure 10From the front view of actuator 2, when the initial brake disc 31 and swing arm 33 are in contact and in a braking state, the swing arm 33 is controlled by the brake disc 31 and cannot move. The first actuation line 51 drives the brake disc 31 to rotate clockwise around the first rotating shaft 251, and the actuation disc and swing arm 33 are no longer in contact, thus releasing the brake, and the swing arm 33 can move at this time. The second drive member 54 controls the swing arm 33 through the second actuator. The second actuation line 53 is connected to the second rotating member 34, and the second rotating member 34 extends into the loop formed by the second actuation line 53 and the second drive member 54. When the second actuation line 53 is deformed by Joule heat generated by the current, causing a change in length, the circumference of the loop formed by the second actuation line 53 and the second drive member 54 changes, and the second rotating member 34 is driven to make the swing arm 33 rotate around the first rotating shaft 251. For example, refer to Figure 10 , Figure 11 ,by Figure 10 From the front view of the actuator 2, the swing arm 33 can move after the brake is released. The second actuation line 53 drives the swing arm 33 to rotate clockwise around the second rotating shaft 252. At this time, the end of the swing arm 33 away from the mounting base 22, i.e., the movable end, can move in the vertical direction, that is, the actuator 2 can output displacement to the outside.

[0077] Reference Figure 10 The actuator 2 extends from the end away from the mounting base 22 to form a positioning platform 26, on which a fixing post 23 is mounted. The thickness of the positioning platform 26 is less than the thickness of the actuator body 21, so that when the swing arm 33 is driven by the second driving member 54 and the second actuation line 53, the positioning platform 26 can avoid the swing arm 33, preventing the movement of the swing arm 33 from being affected. The actuator 2 also includes a first elastic member 4 and a second elastic member 24 for resetting the moved swing arm 33 and brake disc 31. Depending on the actual situation, the first elastic member 4 and the second elastic member 24 can be selected from elastic structures such as springs, elastic sheets, and elastic metal rings, and different structures can be selected for the first elastic member 4 and the second elastic member 24 according to their position and method of use. The first elastic element 4 has its two ends connected to the fixed post 23 and the end of the swing arm 33 away from the brake disc 31, respectively. When the swing arm 33 moves too much in the clockwise direction, the elastic force of the first elastic element 4 can pull it back to its original position; when the swing arm 33 moves too much in the counterclockwise direction, the elastic force of the first elastic element 4 can bounce it back to its original position. The second elastic element 24 is disposed between the brake disc 31 and the actuator body 21 and abuts against the brake disc 31 and the actuator body 21. Depending on the actual situation, the second elastic element 24 is often disposed on the side of the brake disc 31 in the direction of rotation when the brake is released. For example, when the brake disc 31 is released by rotating clockwise, the second elastic element 24 is disposed on the right side of the first rotating shaft 251. Therefore, when the brake is released, the second elastic element 24 is compressed so that when the brake needs to be re-established, the second elastic element 24 can bounce back to realize the reset of the brake disc 31.

[0078] In some embodiments, refer to Figure 11 The mounting base 22 has at least one protruding steering block to facilitate steering of the first actuation line 51 or the second actuation line 53 according to requirements and structural design, in coordination with the movement of the brake disc 31 and the swing arm 33. For example, as Figure 11 As shown, the steering block may include a first steering block 221 and a second steering block 222. The second actuation line 53 is connected to the second rotating member 34 after being turned by the first steering block 221 and the second steering block 222. At this time, it is not necessary to set a new installation position for the second driving member 54 according to the position of the second rotating member 34. Instead, the extension direction of the second actuation line 53 is changed along the guide steering block. Since the first actuation line 51 and the second actuation line 53 often slide relative to the first rotating member 32, the second rotating member 34 and the steering block when deformed, the edge of the steering block is a smooth arc shape to avoid the sharp shape causing the first actuation line 51 and the second actuation line 53 to break.

[0079] In some embodiments, refer to Figure 10 , Figure 11 , Figure 13 A portion of the first drive element 52 and / or the second drive element 54 is embedded within the actuator body 21 to facilitate the connection of integrated circuit components on the circuit board 15 to other external circuits as needed, thereby controlling the first actuation line 51 and the second actuation line 53. Simultaneously, the portion embedded within the actuator body 21 is also protected by the actuator body 21.

[0080] In some embodiments, refer to Figure 10 The mounting base 22 is also provided with a receiving groove 27, in which the first driving component 52 and / or the second driving component 54 are disposed to achieve better protection and reduce the impact of dust, bumps and other factors on the first driving component 52 and / or the second driving component 54.

[0081] Based on the actual product situation, refer to Figure 22 , Figure 23 , Figure 24 Multiple actuators 2 can be installed on structures such as voice coils, displays, and lens modules, and connected to a swing arm 33 for output displacement via a connection structure to achieve precise control of minute movements, such as the vibration of the voice coil or changes in the focal length of the lens module. For example, Figure 22 The effect of connecting actuators 2 to each side of the display screen is shown. Figure 23 This shows the effect after connecting actuator 2 to the edge of the voice coil. Figure 24The effect of connecting actuator 2 to the edge of the lens module is shown. The more actuators 2 are set, the higher the precision of the movement of the electronic device. By setting multiple actuators 2, the fine control of the electronic device can be further improved, enhancing product quality and providing a better user experience.

[0082] This application provides an actuation component and an actuator. The actuation component includes a circuit board, a fixing component, and an actuation wire. The fixing component includes a first conductive layer, a conductive adhesive layer, and a cover plate. Both ends of the actuation wire extend into the conductive adhesive layer and are electrically connected to it. The conductive adhesive layer is electrically connected to the first conductive layer, and the first conductive layer is electrically connected to the circuit board. Heating the first conductive layer and the conductive adhesive layer achieves a welding effect, effectively fixing the actuation wire and enabling efficient current conduction, thus reducing product size.

[0083] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An actuation component, characterized in that, The actuation component (1) includes: Circuit board (15); A fixing component, the fixing component including a first conductive layer (131), a conductive adhesive layer (12) and a cover plate (14), the first conductive layer (131) being disposed on the circuit board (15) and electrically connected to the circuit board (15), the conductive adhesive layer (12) being disposed on the first conductive layer (131) and electrically connected to the first conductive layer (131), and the cover plate (14) covering the conductive adhesive layer (12); The actuator line (11) is located on the outside of the circuit board (15), and the two ends of the actuator line (11) extend into the conductive adhesive layer (12) and are electrically connected to the conductive adhesive layer (12).

2. The actuation component according to claim 1, characterized in that, The fixing component is disposed at one end of the circuit board (15) along the width direction. The two ends of the actuation line (11) are respectively extended into the middle by the two ends of the conductive adhesive layer (12) of the fixing component in the length direction. The first conductive layer (131) covers the projection of the actuation line (11) on the circuit board (15).

3. The actuation component according to claim 2, characterized in that, The first conductive layer (131) includes two first conductive sheets, which are arranged side by side on the circuit board (15) with a gap between them. The conductive adhesive layer (12) is disposed on the two first conductive sheets, fills the gap between the two first conductive sheets and connects to the circuit board (15). The two ends of the conductive adhesive layer (12) extend outward from the outside of the two first conductive sheets and extend to the edge of the circuit board (15) along the length direction.

4. The actuation component according to claim 1, characterized in that, The number of fixing components is two, which are disposed at both ends of the circuit board (15) along the length direction. The two ends of the actuation line (11) extend into the conductive adhesive layer (12) from the same end of the two fixing components along the length direction. The two first conductive layers (131) cover the projection of the actuation line (11) on the circuit board (15).

5. The actuation component according to claim 2 or 4, characterized in that, The portion of the actuation line (11) extending into the conductive adhesive layer (12) is parallel to the edge of the conductive adhesive layer (12) or has at least one curved segment.

6. The actuation component according to claim 1, characterized in that, The first conductive layer (131) includes at least two first conductive elements (1311), each of which is electrically connected to the conductive adhesive layer (12) and the circuit board (15).

7. The actuation component according to claim 6, characterized in that, The actuation component (1) further includes a second conductive layer (132), which is disposed between the conductive adhesive layer (12) and the cover plate (14); The second conductive layer (132) includes at least two second conductive elements (1321), which are electrically connected to the conductive adhesive layer (12) respectively. The positions of the second conductive elements (1321) and the first conductive elements (1311) correspond one-to-one.

8. The actuation component according to claim 6, characterized in that, The actuation component (1) further includes a second conductive layer (132), which is disposed between the conductive adhesive layer (12) and the cover plate (14); The second conductive layer (132) includes a second conductive element (1321), which is electrically connected to the conductive adhesive layer (12). The second conductive element (1321) is located within the projection of the actuation line (11) on the circuit board (15).

9. An actuator, characterized in that, The actuator (2) includes: The actuator body (21) has a second rotating shaft (252) and a first rotating shaft (251) on its top surface; A brake disc (31) is disposed on the top surface of the actuator body (21) and rotatably connected to the first rotating shaft (251). A first rotating member (32) protrudes from one end of the brake disc (31) near the edge of the actuator body (21). A swing arm (33) is disposed on the top surface of the actuator body (21) and rotatably connected to the second rotating shaft (252). A second rotating member (34) protrudes from the swing arm (33). One end of the swing arm (33) adjacent to the brake disc (31) abuts against the brake disc (31). The first driving member (52) and the second driving member (54) are both actuation components (1) as described in any one of claims 1-8. The first driving member (52) and the second driving member (54) are respectively disposed on the top surface of the actuator body (21). The first actuation line (51) of the first driving member (52) is connected to the first rotating member (32), and the second actuation line (53) of the second driving member (54) is connected to the second rotating member (34).

10. The actuator according to claim 9, characterized in that, The actuator (2) further includes a mounting base (22) connected to one end of the top surface of the actuator body (21). The first driving member (52) and the second driving member (54) are respectively disposed on both sides of the mounting base (22). The end of the actuator (2) away from the mounting base (22) extends to form a positioning platform (26).

11. The actuator according to claim 10, characterized in that, The actuator (2) further includes a first elastic element (4), and a fixed column (23) is installed on the positioning platform (26). The two ends of the first elastic element (4) are respectively connected to the fixed column (23) and the end of the swing arm (33) away from the brake disc (31).

12. The actuator according to claim 10, characterized in that, The mounting base (22) has at least one steering block protruding from it, and the second actuation line (53) is connected to the second rotating member (34) after being turned by at least one of the steering blocks.

13. The actuator according to claim 10, characterized in that, The actuator (2) further includes a second elastic element (24) disposed between the brake disc (31) and the actuator body (21) and abutting against the brake disc (31) and the actuator body (21).

14. The actuator according to claim 9, characterized in that, A portion of the first drive member (52) and / or the second drive member (54) is embedded within the actuator body (21).

15. The actuator according to claim 10, characterized in that, The mounting base (22) has a receiving groove (27), and the first driving member (52) and / or the second driving member (54) are disposed in the receiving groove (27).

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