Actuating assembly and actuator

Abstract

The embodiment of the invention 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] The present invention relates to the technical field of actuator devices, and in particular to an actuator assembly and an actuator. Background Art

[0002] In the prior art, an actuator is used to control micro-displacements. The movement of the actuator is controlled by an actuating wire, and a shape memory alloy wire is usually used as the actuating wire. When the temperature conditions of the shape memory alloy change, it will also deform. When in use, current is passed through the actuating wire made of shape memory alloy to generate Joule heat, and the temperature environment of the actuating wire changes, causing the actuating wire to deform. The actuator can thus output micro-displacements to external components. By changing the current, the temperature environment of the actuating wire changes, and the user can control the deformation of the actuating wire to achieve the actuator effect.

[0003] Most current products use wire clamps to fix the actuating wires, but the diameter of the actuating wires is very small, and the use of wire clamps to fix them is prone to fixation failure or clipping problems. At the same time, since the wire clamps have a certain volume, it is difficult to reduce the volume of the product. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an actuating assembly and an actuator, which achieve a better fixing effect, realize efficient conduction, and reduce the volume of the product.

[0005] In a first aspect, an embodiment of the present invention provides an actuating assembly, comprising:

[0006] A circuit board, wherein an integrated circuit element is disposed on the circuit board, and the integrated circuit element extends to an edge of the circuit board;

[0007] At least one fixing component is arranged at the edge of the circuit board, each of the fixing components comprises a first conductive layer, a conductive adhesive layer and a cover plate, the first conductive layer, the conductive adhesive layer and the cover plate are stacked in sequence, and the first conductive layer is electrically connected to the integrated circuit element and the conductive adhesive layer;

[0008] An actuating wire, two ends of which extend into the conductive adhesive layer and are electrically connected to the conductive adhesive layer respectively, and the actuating wire and the circuit board form a closed ring structure.

[0009] Optionally, the fixing component is arranged at one end of the circuit board in the width direction, and the two ends of the actuating line respectively extend from the two ends of the conductive adhesive layer of the fixing component in the length direction and extend toward the middle, and the first conductive layer covers the projection of the actuating line on the circuit board.

[0010] Optionally, the first conductive layer includes two first conductive sheets, and the two first conductive sheets are arranged side by side on the circuit board with an interval, and the conductive adhesive layer is arranged on the two first conductive sheets, and the conductive adhesive layer fills the gap between the two first conductive sheets and is connected to the circuit board, and both ends of the conductive adhesive layer extend out of the outside of the two first conductive sheets and extend to the edge of the circuit board along the length direction.

[0011] Optionally, there are two fixing components, which are arranged at both ends of the circuit board along the length direction, and both ends of the actuating line extend into the conductive adhesive layer from the same end of the two fixing components along the length direction respectively, and the two first conductive layers cover the projection of the actuating line on the circuit board.

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

[0013] Optionally, the first conductive layer includes at least two first conductive members, and each of the first conductive members is electrically connected to the conductive adhesive layer and the integrated circuit element.

[0014] Optionally, the actuating assembly further comprises a second conductive layer, and the second conductive layer is arranged between the conductive adhesive layer and the cover plate;

[0015] The second conductive layer includes at least two second conductive members, the at least two second conductive members are electrically connected to the conductive adhesive layer respectively, and the positions of the second conductive members correspond to the positions of the first conductive members one by one.

[0016] Optionally, the actuating assembly further comprises a second conductive layer, and the second conductive layer is arranged between the conductive adhesive layer and the cover plate;

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

[0018] In a second aspect, an embodiment of the present invention provides an actuator, comprising:

[0019] An actuator body, wherein a second rotating shaft and a first rotating shaft are disposed on a top surface of the actuator body;

[0020] A brake disc, arranged on the top surface of the actuator body and rotatably connected to the first rotating shaft, wherein a first rotating member is protruded from one end of the brake disc close to the edge of the actuator body;

[0021] A swing arm is arranged on the top surface of the actuator body and is rotatably connected to the second rotating shaft, a second rotating member is protruded from the swing arm, and one end of the swing arm adjacent to the brake disc abuts against the brake disc;

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

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

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

[0025] Optionally, at least one steering block is protruded from the mounting seat, and the second actuating line is connected to the second rotating member after being turned by at least one steering block.

[0026] Optionally, the actuator further comprises a second elastic member, which is disposed between the brake disc and the actuator body and abuts against the brake disc and the actuator body.

[0027] Optionally, a portion of the first driving member and / or the second driving member is buried in the actuator body.

[0028] Optionally, a receiving groove is provided on the mounting seat, and the first driving member and / or the second driving member is arranged in the receiving groove.

[0029] The embodiment of the present invention provides an actuating assembly and an actuator, wherein the actuating assembly includes a circuit board, a fixing assembly and an actuating wire, the fixing assembly includes a first conductive layer, a conductive adhesive layer and a cover plate, two ends of the actuating wire respectively extend into the conductive adhesive layer and are electrically connected to the conductive adhesive layer, the conductive adhesive layer is electrically connected to the first conductive layer, and the first conductive layer is electrically connected to the circuit board. After heating, the first conductive layer and the conductive adhesive layer can have a welding effect, effectively fixing the actuating wire, and can achieve efficient conduction of current, reducing the volume of the product. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0031] Figure 1is a front perspective schematic diagram of an actuating assembly according to an embodiment of the present invention;

[0032] Figure 2 is a front view of an actuating assembly according to an embodiment of the present invention;

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

[0034] Figure 4 is a perspective schematic diagram of the back side of an actuating assembly according to an embodiment of the present invention;

[0035] Figure 5 is a front perspective schematic diagram of an actuating assembly according to another embodiment of the present invention;

[0036] Figure 6 is a back perspective schematic diagram of an actuating assembly according to another embodiment of the present invention;

[0037] Figure 7 is a front perspective schematic diagram of an actuating assembly 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 is a three-dimensional schematic diagram of a fixing assembly in which an actuating line has a curved section according to an embodiment of the present invention;

[0039] Fig. 9 It is a three-dimensional schematic diagram of a fixing component in which an actuating wire has a curved section and a second conductive layer and a conductive adhesive layer are removed according to an embodiment of the present invention;

[0040] Fig.10 is a front perspective schematic diagram of an actuator according to an embodiment of the present invention;

[0041] Fig.11 is a perspective schematic diagram of the back side of an actuator according to an embodiment of the present invention;

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

[0043] Fig.13 is a partial cross-sectional view of an actuator according to an embodiment of the present invention;

[0044] Fig.14 is a cross-sectional view of a fixing structure of an embodiment of the present invention before processing;

[0045] Fig.15 is a top view of the arrangement of first conductive members on a circuit board according to an embodiment of the present invention;

[0046] Fig.16 is a cross-sectional view of a fixing structure after molding according to an embodiment of the present invention;

[0047] Fig.17 is a cross-sectional view of a fixing structure of another embodiment of the present invention before processing;

[0048] Fig.18 is a top view of the arrangement of the second conductive members on the cover plate of another embodiment of the present invention;

[0049] Fig.19 is a cross-sectional view of a fixing structure after molding according to another embodiment of the present invention;

[0050] Fig. 20 is a cross-sectional view of a fixing structure of another embodiment of the present invention before processing;

[0051] Fig.21 is a cross-sectional view of a fixing structure after molding according to another embodiment of the present invention;

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

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

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

[0055] Description of reference numerals:

[0056] 1-actuating assembly; 11-actuating line; 12-conductive adhesive layer; 131-first conductive layer; 1311-first conductive member; 132-second conductive layer; 1321-second conductive member; 14-cover plate; 15-circuit board; 2-actuator; 21-actuator body; 22-mounting seat; 221-first steering block; 222-second steering block; 23-fixing column; 24-second elastic member; 251-first rotating shaft; 252-second rotating shaft; 26-positioning platform; 27-accommodating groove; 31-brake disc; 32-first rotating member; 33-swing arm; 34-second rotating member; 4-first elastic member; 51-first actuating line; 52-first driving member; 53-second actuating line; 54-second driving member. DETAILED DESCRIPTION

[0057] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0058] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0059] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0061] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0062] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0063] Anisotropic conductive film is a special electronic material composed of conductive particles and insulating adhesive. The conductive properties of anisotropic conductive film are different at different locations. The location where the conductive particles are dispersed is difficult to form an effective current path, showing insulation; the location where the conductive particles are concentrated and broken can form an effective current path, showing conductivity. Therefore, the anisotropic conductive film has the characteristics of adhesion and conduction only in the direction perpendicular to the pressure plane. In order to achieve current conduction when the circuit elements are adhered and fixed, anisotropic conductive film is used as the conductive adhesive layer 12, such as Figure 14-16As shown. When forming 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 to achieve the effect of conduction and fixation. For the fixed component formed after heating and pressurization, the broken conductive particles gather between the actuating wire 11 and the first conductive layer 131 and achieve conduction, and the insulating adhesive fills the remaining positions to achieve a unidirectional conduction effect in which the conductive adhesive layer 12 is only conductive in the vertical direction. At the same time, the insulating adhesive forms a stable and reliable connection between the cover plate 14, the actuating wire 11 and the first conductive layer 131, and the first conductive layer 131 is fused to the circuit board 15 to form an effective fixed structure.

[0064] Reference Figure 1-Figure 2 The actuating assembly 1 of the embodiment of the present invention includes a circuit board 15, at least one fixed assembly and an actuating wire 11. The fixed assembly fixes the actuating wire 11 to the circuit board 15 to achieve a stable and effective connection, avoid the failure of fixing and breakage of the actuating wire 11, and can be miniaturized without taking up too much space. Among them, the number of fixed assemblies is not limited and can be increased or decreased according to actual conditions to ensure that the actuating wire 11 can be effectively fixed. The actuating wire 11 is made of shape memory alloy. The circuit board 15 conducts current into the actuating wire 11 through the fixed assembly, generates Joule heat to deform the actuating wire 11, and drives the external components. An integrated circuit component is arranged on the circuit board 15, and the integrated circuit component extends to the edge of the circuit board 15 to facilitate electrical connection with the fixed assembly to achieve circuit conduction. The actuating wire 11 is located outside the circuit board 15, and the two ends of the actuating wire 11 are respectively extended into the fixed component to realize electrical connection. At this time, the actuating wire 11, the fixed component and the circuit board 15 together form a closed ring structure, and the part of the actuating wire 11 located outside the circuit board 15 forms a U-shaped shape. The actuating component 1 can control the movement of the external component through this U-shaped part. The shape change of the actuating wire 11 after being heated causes the length and other conditions of the actuating wire 11 to change, which can drive the external component to move in a controllable small amplitude, that is, the current is changed according to the size of the required movement amplitude, and the deformation amplitude of the actuating wire 11 can be controlled.

[0065] The actuating assembly 1 includes at least one fixing assembly, and the number of fixing assemblies is not limited. Figure 1-Figure 4 , Figure 3 yes Figure 2Schematic diagram of the cross section AA. Each fixed component includes a first conductive layer 131, a conductive adhesive layer 12 and a cover plate 14, wherein the conductive adhesive layer 12 is disposed between the first conductive layer 131 and the cover plate 14, and the actuating wire 11 is extended into the conductive adhesive layer 12 and fixed. Among them, the first conductive layer 131 is disposed on the circuit board 15 and electrically connected to the circuit board 15, and is used to achieve efficient conduction between the integrated circuit element on the circuit board 15 and the conductive adhesive layer 12. In order to achieve more stable and effective fixation, the conductive adhesive layer 12 is disposed on the first conductive layer 131, and the conductive adhesive layer 12 is electrically connected to the first conductive layer 131, and is used to achieve electrical connection and fixation between the first conductive layer 131 and the actuating wire 11. Since the conductive adhesive layer 12 is not completely conductive, but needs to be broken by the conductive particles inside it during processing to achieve conductivity, and the integrated circuit element is relatively precise, therefore, the use of the first conductive layer 131 can avoid the problems of low conduction efficiency and poor heat dissipation when the integrated circuit element is directly connected to the conductive adhesive layer 12. The cover plate 14 is usually made of insulating material to prevent electrical leakage and protect the fixed components.

[0066] According to the actual situation, since the current maximum tensile strength of the shape memory alloy wire is usually 50 Newtons, and when the actuating component 1 is working, the actuating wire 11 that forms a tensile strength of 1 Newton needs to be fixed for about 400 microns to achieve effective and stable fixation, therefore, the maximum length of the actuating wire 11 that needs to be fixed is about 20 mm. And in order for the manufactured actuating component 1 to be able to drive the external component to move stably and effectively, in terms of feasibility, at least a 30-micron-long actuating wire 11 needs to be fixed to achieve this. Therefore, the length of the actuating wire 11 fixed in the conductive adhesive layer 12 is between 0.03 mm and 20 mm.

[0067] In some embodiments, the first conductive layer 131 may be provided as a metal contact layer. Fig.14 , Fig.15 , Fig.16The first conductive layer 131 includes at least two first conductive members 1311, which are metal contacts. That is, the first conductive layer 131 is actually composed of at least two first conductive members 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 actuating wire 11 on the circuit board 15, and the number of the first conductive members 1311 also changes with the first conductive layers 131 of different shapes and sizes. Each first conductive member 1311 is electrically connected to the conductive adhesive layer 12 and the circuit board 15. For one side of the circuit board 15, the first conductive member 1311, which is the metal contact, can be more efficiently and accurately electrically connected to the integrated circuit element to achieve effective conduction; for one side of the conductive adhesive layer 12, the first conductive members 1311 are arranged in an array to form a first conductive layer 131 with a larger surface area, which can achieve better bonding with the conductive particles in the conductive adhesive layer 12, improve the bonding force between the two, and achieve a tighter bonding after welding to avoid the problem of fixing failure. The cover plate 14 covers the conductive adhesive layer 12 to protect the fixed structure.

[0068] In some embodiments, reference Figure 5-Figure 6 , the number of the fixing component is one, which is arranged at one end of the circuit board 15 in the width direction. In order to maximize the length of the fixing component used to fix the actuating wire 11, the two ends of the actuating wire 11 are respectively extended from the two ends of the conductive adhesive layer 12 of the fixing component in the length direction and extend toward the middle, so as to maximize the space utilization in the fixing component, achieve a better fixing effect, and avoid the failure or breakage of the fixing of the actuating wire 11. The first conductive layer 131 covers the projection of the actuating wire 11 on the circuit board 15, increases the contact area between the first conductive layer 131 and the actuating wire 11, and the conductive adhesive layer 12 arranged between the first conductive layer 131 and the actuating wire 11, so that the actuating wire 11 and the first conductive layer 131 can be efficiently connected and tightly combined, and the space occupied by the fixing component is greatly reduced compared with the wire clamp.

[0069] Reference Figure 5-Figure 7, the first conductive layer 131 includes two first conductive sheets, which serve as the positive and negative electrodes of the circuit in the actuating wire 11, and are arranged side by side on the circuit board 15. For each first conductive sheet, its structure is also composed of first conductive members 1311 arranged in an array, i.e., metal contacts, to increase the contact area, achieve a more stable connection and more efficient conduction. The conductive adhesive layer 12 is arranged on the two first conductive sheets to achieve conduction between the first conductive sheets and the actuating wire 11, and at the same time fills the gap between the two first conductive sheets and is connected to the circuit board 15, and extends out of the two first conductive sheets at both ends and extends to the edge of the circuit board 15 along the length direction. Since the conductive adhesive layer 12 has a unidirectional conduction characteristic of conducting electricity only in the vertical direction, the conductive adhesive layer 12 filled between the two first conductive sheets is actually insulated, and will not cause conduction between the two first conductive sheets serving as the positive and negative electrodes to cause a short circuit. At the same time, the conductive adhesive layer 12 also has the function of adhesion and fixing. The conductive adhesive layer 12 arranged between the two first conductive sheets and extending to the edge of the circuit board 15 can make the structure of the entire fixing component more stable and reliable, avoid the problems of fixing failure and breakage of the actuating line 11, and greatly reduce the space occupied by the fixing component compared to the wire clamp.

[0070] like Figure 7 As shown in the figure, when the fixing assembly is arranged at one end of the circuit board 15 in the width direction, the two ends of the actuating wire 11 extending into the fixing assembly actually form a relative positional relationship. According to the actual situation, the two ends of the actuating wire 11 extending into the fixing assembly may be in contact or not. For the actuating wire 11, as long as the Joule heat is generated inside the actuating wire 11 due to the current, the actuating wire 11 can be deformed.

[0071] In some embodiments, reference Figure 1-Figure 4 , there are two fixing components, which are arranged at both ends of the circuit board 15 along the length direction. In order to increase the length of the fixing components used to fix the actuating wire 11 as much as possible, the two ends of the fixing components extend to the edge of the circuit board 15. The two ends of the actuating wire 11 extend into the conductive adhesive layer 12 from the same end of the two fixing components along the length direction, and extend to the bottom of the conductive adhesive layer 12 in the length direction to maximize the use of the length of the fixing components. The two first conductive layers 131 respectively serve as positive and negative electrodes to cover the projection of the actuating wire 11 on the circuit board 15, increase the contact area between the first conductive layer 131 and the actuating wire 11, and the conductive adhesive layer 12 arranged between the first conductive layer 131 and the actuating wire 11, so that the actuating wire 11 and the first conductive layer 131 can be efficiently connected and tightly combined, avoiding the problem of fixing failure and breakage of the actuating wire 11.

[0072] According to actual conditions, in some embodiments, refer to Figure 7 , Figure 8 , Fig. 9The portion of the actuating wire 11 extending into the conductive adhesive layer 12 may be parallel to the edge of the conductive adhesive layer 12, or may have at least one curved section, so as to increase the projection area of ​​the actuating wire 11 on the circuit board 15, thereby achieving a tighter and more reliable connection and a more efficient conduction, and greatly reducing the occupied space compared to the wire clamp.

[0073] In some embodiments, reference Figure 1-Figure 8 , Figure 17-Figure 21 The actuating assembly 1 also includes a second conductive layer 132, which is arranged between the conductive adhesive layer 12 and the cover plate 14, and is used to achieve a tighter connection between the cover plate 14 and the conductive adhesive layer 12. Since the cover plate 14 itself is usually made of insulating material, the connection between the cover plate 14 and the conductive adhesive layer 12 is mainly achieved by the adhesion of the insulating adhesive material. The second conductive layer 132 is a metal material, which can form a further fusion relationship with the broken conductive particles during hot pressing, so that the combination between the cover plate 14 and the conductive adhesive layer 12 is tighter and more reliable, avoiding fixation failure. At the same time, the second conductive layer 132 can also make the current produce a more complex flow in the actuating line 11, enhance the circuit conduction and the generation of Joule heat. Since the second conductive layer 132 mainly plays the role of auxiliary connection and strengthening circuit conduction, in order to reduce the use of metal, the area of ​​the second conductive layer 132 can be reduced.

[0074] According to the actual situation, refer to Fig.17 , Fig.18 , Fig.19 , the second conductive layer 132 may include at least two second conductive members 1321 or one second conductive member 1321, and the second conductive member 1321 is electrically connected to the conductive adhesive layer 12. The second conductive member 1321 is a micro-metal structure such as a metal microsphere, so as to form a welding effect with the conductive particles in the conductive adhesive layer 12. When the number of the second conductive members 1321 is at least two, the positions of the second conductive members 1321 and the first conductive members 1311 correspond one to one, so as to achieve a symmetrical distribution on both sides of the actuation line 11. Since the conductive adhesive layer 12 has the ability to conduct in the vertical direction, the second conductive member 1321 can participate in the current distribution in the auxiliary actuation line 11 at this time, and enhance the effect of current conduction and Joule heat generation. Fig. 20 , Fig.21 As shown, when the number of the second conductive member 1321 is one, the position of the second conductive member 1321 corresponds to the actuating line 11. At this time, the position of the second conductive member 1321 is located within the projection of the actuating line 11 on the circuit board 15. The conductive ability of the conductive adhesive layer 12 in the vertical direction can also achieve the effect of enhancing current conduction and Joule heat generation.

[0075] The embodiment of the present invention further provides an actuator 2, referring to Figure 10-13 , Fig.13 for Fig.12A schematic cross-sectional view of a portion of the middle section BB. The actuator 2 comprises an actuator body 21, a brake disc 31, a swing arm 33, a first driving member 52 and a second driving member 54. The brake disc 31, the swing arm 33, the first driving member 52 and the second driving member 54 are arranged on the actuator body 21, the brake disc 31 and the swing arm 33 are in contact with each other and are controlled by the first driving member 52 and the second driving member 54 respectively. The displacement generated by the actuator 2 is finally output outward through the swing arm 33, driving the structure to be moved to achieve micro-precision movement. The top surface of the actuator body 21 is provided with a second rotating shaft 252 and a first rotating shaft 251, which are used to connect with the brake disc 31 and the swing arm 33. The brake disc 31 is arranged on the top surface of the actuator body 21 and is rotatably connected with the first rotating shaft 251, and a first rotating member 32 is protruded at one end thereof close to the edge of the actuator body 21, and the first rotating member 32 is used to connect with the first driving member 52. The swing arm 33 is arranged on the top surface of the actuator body 21 and is rotatably connected to the second rotating shaft 252. A second rotating member 34 is protruded on the swing arm 33, and the second rotating member 34 is used to connect with the second driving member 54. One end of the swing arm 33 adjacent to the brake disc 31 abuts against the brake disc 31, and is controlled by the first driving member 52 and the second driving member 54 to achieve the change of the braking and releasing state. According to actual conditions, the actuator 2 may further include a mounting seat 22, which is connected to one end of the top surface of the actuator body 21, so as to facilitate the installation of the first driving member 52, the second driving member 54 and other structures.

[0076] like Fig.10 , Fig.11 As shown, the first driving member 52 and the second driving member 54 both adopt the actuating assembly 1. The first driving member 52 and the second driving member 54 are respectively arranged on both sides of the mounting seat 22 on the top surface of the actuator body 21, and respectively control the brake disc 31 and the swing arm 33. The first driving member 52 controls the brake disc 31 through the first actuating member. The first actuating wire 51 is connected to the first rotating member 32, and the first rotating member 32 extends into the ring formed by the first actuating wire 51 and the first driving member 52. When the first actuating wire 51 is deformed by the Joule heat generated by the electric current and causes the length to change, the circumference of the ring formed by the first actuating wire 51 and the first driving member 52 changes, and the first rotating member 32 is driven to cause the brake disc 31 to rotate around the first rotating shaft 251. For example, referring to Fig.10, viewed from the front of the actuator 2, when the initial brake disc 31 is in abutment with the swing arm 33 in a braking state, the swing arm 33 is controlled by the brake disc 31 and cannot move. The first actuating line 51 drives the brake disc 31 to rotate clockwise around the first rotating shaft 251, and the actuating disc and the swing arm 33 are no longer in abutment, so the brake is released, and the swing arm 33 can move at this time. The second driving member 54 controls the swing arm 33 through the second actuating member, and the second actuating line 53 is connected to the second rotating member 34, and the second rotating member 34 extends into the ring formed by the second actuating line 53 and the second driving member 54. When the second actuating line 53 is deformed by the Joule heat generated by the electric current and causes a change in length, the circumference of the ring formed by the second actuating line 53 and the second driving member 54 changes, and the second rotating member 34 is driven to cause the swing arm 33 to rotate around the first rotating shaft 251. For example, referring to Fig.10 , Fig.11 ,by Fig.10 From the front view of the middle actuator 2, after the brake is released, the swing arm 33 can move. The second actuating wire 53 drives the swing arm 33 to rotate clockwise around the second rotating shaft 252, and at this time, the end of the swing arm 33 away from the mounting seat 22, i.e., the movable end, can move in the vertical direction, i.e., the actuator 2 can output displacement to the outside.

[0077] Reference Fig.10 , one end of the actuator 2 away from the mounting seat 22 extends to form a positioning platform 26, and a fixing column 23 is installed on the positioning platform 26. 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 actuating line 53 to move, the positioning platform 26 can avoid the swing arm 33 to prevent 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, which are used to reset the swing arm 33 and the brake disc 31 after the movement. According to actual conditions, the first elastic member 4 and the second elastic member 24 can select elastic structures such as springs, elastic sheets, and elastic metal rings, and the first elastic member 4 and the second elastic member 24 can use different structures according to the position and method of their use. The two ends of the first elastic member 4 are respectively connected to the fixed column 23 and the end of the swing arm 33 away from the brake disc 31. When the swing arm 33 moves too much in the clockwise direction, the elastic force of the first elastic member 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 member 4 can bounce it back to its original position. The second elastic member 24 is arranged between the brake disc 31 and the actuator body 21 and abuts against the brake disc 31 and the actuator body 21. According to actual conditions, the second elastic member 24 is often arranged on one side of the rotation direction of the brake disc 31 when the brake is released. For example, when the brake disc 31 is released by rotating in the clockwise direction, the second elastic member 24 is arranged on the right side of the first rotating shaft 251. Therefore, when the brake is released, the second elastic member 24 is squeezed, so that when the brake state needs to be re-formed, the second elastic member 24 can bounce up to achieve the reset of the brake disc 31.

[0078] In some embodiments, reference Fig.11 At least one steering block is protruded from the mounting seat 22 to facilitate steering the first actuating line 51 or the second actuating line 53 according to the requirements and structural design to coordinate the movement of the brake disc 31 and the swing arm 33. For example, Fig.11 As shown, the steering block may include a first steering block 221 and a second steering block 222. The second actuating wire 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, but the extension direction of the second actuating wire 53 is changed by making the second actuating wire 53 follow the guiding steering block. Since the first actuating wire 51 and the second actuating wire 53 tend to 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 to avoid the first actuating wire 51 and the second actuating wire 53 from being broken due to a sharp shape.

[0079] In some embodiments, reference Fig.10 , Fig.11 , Fig.13 A portion of the first driving member 52 and / or the second driving member 54 is embedded in the actuator body 21, so that the integrated circuit components on the circuit board 15 can be connected to other external circuits as required to control the first actuating wire 51 and the second actuating wire 53. At the same time, the portion embedded in the actuator body 21 can also be protected by the actuator body 21.

[0080] In some embodiments, reference Fig.10 A receiving groove 27 is also provided on the mounting seat 22, and the first driving member 52 and / or the second driving member 54 are arranged in the receiving groove 27 to achieve better protection and reduce the impact of dust, bumps, etc. on the first driving member 52 and / or the second driving member 54.

[0081] According to the actual product situation, refer to Fig. 22 , Fig.23 , Fig.24 , multiple actuators 2 can be arranged on structures such as voice coils, display screens, and lens modules, and connected to the swing arm 33 of the actuator 2 for outputting displacement through its connection structure, so as to achieve the demand for precise control of tiny movements, such as the vibration of the voice coil, the focal length change of the lens module, etc. For example, Fig. 22 The effect of connecting actuators 2 on each side of the display screen is shown. Fig.23 The effect of connecting the actuator 2 to the edge of the voice coil is shown. Fig.24The effect after the actuator 2 is connected to the edge of the lens module is shown. The more actuators 2 are set, the higher the movement precision of the electronic device is formed. By setting multiple actuators 2, the fine control of the electronic device can be further improved, the product quality can be improved, and a better user experience can be brought.

[0082] The embodiment of the present application provides an actuating assembly and an actuator. The actuating assembly includes a circuit board, a fixing assembly and an actuating wire, the fixing assembly includes a first conductive layer, a conductive adhesive layer and a cover plate, the two ends of the actuating wire respectively extend into the conductive adhesive layer and are electrically connected to the conductive adhesive layer, the conductive adhesive layer is electrically connected to the first conductive layer, and the first conductive layer is electrically connected to the circuit board. After the first conductive layer and the conductive adhesive layer are heated, they can have a welding effect, effectively fix the actuating wire, and can achieve efficient conduction of current, reducing the volume of the product.

[0083] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An actuating assembly, characterized in that: The actuating assembly (1) comprises: A circuit board (15), wherein an integrated circuit element is arranged on the circuit board (15), and the integrated circuit element extends to an edge of the circuit board (15); A fixing component, arranged at an edge of the circuit board (15), the fixing component comprising a first conductive layer (131), a conductive adhesive layer (12) and a cover plate (14), the first conductive layer (131), the conductive adhesive layer (12) and the cover plate (14) being stacked in sequence, and the first conductive layer (131) being electrically connected to the integrated circuit element and the conductive adhesive layer (12); An actuating wire (11), two ends of the actuating wire (11) respectively extending into the conductive adhesive layer (12) to be electrically connected to the conductive adhesive layer (12), and the actuating wire (11) and the circuit board (15) forming a closed annular structure.

2. The actuating assembly according to claim 1, characterized in that: The fixing component is arranged at one end of the circuit board (15) in the width direction, and the two ends of the actuating wire (11) extend from the two ends of the conductive adhesive layer (12) of the fixing component in the length direction and extend toward the middle, and the first conductive layer (131) covers the projection of the actuating wire (11) on the circuit board (15).

3. The actuating assembly according to claim 2, characterized in that: The first conductive layer (131) comprises a first conductive sheet, the number of the first conductive sheets being two, the two first conductive sheets being arranged side by side on the circuit board (15) at an interval, the conductive adhesive layer (12) being arranged on the two first conductive sheets, the conductive adhesive layer (12) filling a gap between the two first conductive sheets and being connected to the circuit board (15), and the two ends of the conductive adhesive layer (12) extending out of the two first conductive sheets and extending to the edge of the circuit board (15) along the length direction.

4. The actuating assembly according to claim 1, characterized in that: There are two fixing components, which are arranged at two ends of the circuit board (15) along the length direction, and two ends of the actuating wire (11) extend into the conductive adhesive layer (12) from the same end of the two fixing components along the length direction, respectively, and the two first conductive layers (131) cover the projection of the actuating wire (11) on the circuit board (15).

5. The actuating assembly according to claim 2 or 4, characterized in that: The portion of the actuating wire (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 section.

6. The actuating assembly according to claim 1, characterized in that: The first conductive layer (131) comprises at least two first conductive members (1311), and each of the first conductive members (1311) is electrically connected to the conductive adhesive layer (12) and the integrated circuit element.

7. The actuating assembly according to claim 6, characterized in that: The actuating assembly (1) further comprises a second conductive layer (132), wherein the second conductive layer (132) is arranged between the conductive adhesive layer (12) and the cover plate (14); The second conductive layer (132) comprises at least two second conductive members (1321), the at least two second conductive members (1321) are electrically connected to the conductive adhesive layer (12) respectively, and the positions of the second conductive members (1321) and the first conductive members (1311) correspond one to one.

8. The actuating assembly according to claim 6, characterized in that: The actuating assembly (1) further comprises a second conductive layer (132), wherein the second conductive layer (132) is arranged between the conductive adhesive layer (12) and the cover plate (14); The second conductive layer (132) comprises a second conductive member (1321), the second conductive member (1321) is electrically connected to the conductive adhesive layer (12), and the second conductive member (1321) is located within the projection of the actuating line (11) on the circuit board (15).

9. An actuator, characterized in that: The actuator (2) comprises: An actuator body (21), wherein a second rotating shaft (252) and a first rotating shaft (251) are disposed on a top surface of the actuator body (21); A brake disc (31) is arranged on the top surface of the actuator body (21) and is rotatably connected to the first rotating shaft (251); a first rotating member (32) is protruded from one end of the brake disc (31) close to the edge of the actuator body (21); A swing arm (33) is arranged on the top surface of the actuator body (21) and is rotatably connected to the second rotating shaft (252); a second rotating member (34) is protruded from the swing arm (33); and 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) both adopt the actuating assembly (1) described in any one of claims 1 to 8, the first driving member (52) and the second driving member (54) are respectively arranged on the top surface of the actuator body (21), the first actuating line (51) of the first driving member (52) is connected to the first rotating member (32), and the second actuating 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 comprises a mounting seat (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 arranged on both sides of the mounting seat (22); and one end of the actuator (2) away from the mounting seat (22) extends to form a positioning platform (26).

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

12. The actuator according to claim 10, characterized in that At least one steering block is protruded from the mounting seat (22), and the second actuating line (53) is connected to the second rotating member (34) after being turned by the at least one steering block.

13. The actuator according to claim 10, characterized in that The actuator (2) further comprises a second elastic member (24) which is arranged between the brake disc (31) and the actuator body (21) and abuts 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 driving member (52) and / or the second driving member (54) is embedded in the actuator body (21).

15. The actuator according to claim 10, characterized in that The mounting seat (22) is provided with a receiving groove (27), and the first driving member (52) and / or the second driving member (54) are arranged in the receiving groove (27).

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