Touch panel and electronic equipment

Abstract

The invention provides a touchpad and electronic equipment, the touchpad comprises a touch control circuit board and a bottom plate, the touch control circuit board is provided with a first pressing part and a second pressing part distributed on the outer side of the first pressing part, and the first pressing part is provided with a trigger piece. The touch panel further comprises a balance rod, the balance rod is provided with a connecting part and a triggering part, the connecting part is connected with the touch circuit board, and the triggering part is used for pressing the triggering piece. And a supporting part is arranged on the bottom plate and can be used as a fulcrum of the balance rod. The fulcrum is located between the connecting part and the triggering part. When the second pressing part is pressed, the connecting part of the balance rod can be driven by the second pressing part to move in the direction close to the bottom plate, and the triggering part is driven to move in the direction close to the touch control circuit board so as to press the triggering piece. According to the touch panel provided by the invention, the pressing hand feeling at each part is relatively uniform, the triggering piece can be successfully triggered when the position far away from the triggering piece is pressed, the problem of pressing failure is solved, and the response speed of the triggering piece is high.

Description

[0001] This application is a divisional application. The application number of the original application is 202310687061.9, and the original application date is June 9, 2023. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of touch technology, and in particular to a touch panel and an electronic device. Background Art

[0003] As an input device for electronic products such as laptops, the touchpad (also called touchpad) has the advantages of being thin and light and having multiple functions. When using the touchpad, users usually need to press to realize functions such as click confirmation. The sensitivity of pressing at different places and the consistency of the user's feeling of force directly affect the user's experience.

[0004] like Figure 1a-1b As shown, the touch panel 100' includes a touch circuit board and a bottom plate 2' supporting the touch circuit board, and a trigger member 11' such as a switch button is installed on the touch circuit board 1'. The touch circuit board 1' has a pressing area that can be pressed. When pressing in the pressing area, the touch circuit board 1' can move toward the bottom plate, so that the trigger member 11' is squeezed by the bottom plate, and a trigger signal can be generated when the trigger member 11' reaches a certain compression amount. When the user presses the touch panel 100', the trigger member 11' generates a rebound force, so that the user can feel that the trigger member 11' is pressed.

[0005] The trigger member is usually installed in the middle of the pressing area of ​​the touch circuit board 1'. When the area where the trigger member 11' is located is pressed, the pressing force directly acts on the trigger member 11' through the touch circuit board 1', which can successfully trigger the trigger member 11'. In addition, the pressing is more labor-saving, the pressing stroke is smaller, and the response speed of the trigger member is fast. However, when pressing a position far away from the trigger member, such as the edge and corner of the touch circuit board 1', the force arm between the pressing point and the position where the trigger member 11' is located is longer, and the pressing force cannot be transmitted in time, and the response speed of the trigger member 11' is slow. In addition, the touch circuit board 1' is generally a thin plate-like structure. When pressing a position far away from the trigger member 11', the structure between the pressing point and the trigger member 11' is easily deformed, and the following phenomenon will occur. Figure 1b The situation of failure of pressing shown is that the touch circuit board 1' is bent toward the bottom plate, and the pressing strokes at different positions are inconsistent. The pressing point has reached the maximum pressing stroke, but still cannot trigger the trigger member 11'. In this case, the user needs to overcome the rebound force generated by the deformation of the touch circuit board 1', and the required pressing force is greater.

[0006] Therefore, in the prior art, when the touch pad is pressed at a position far from the trigger (for example, pressing the edge or corner of the touch circuit board), the pressing force and the pressing stroke cannot be transmitted to the trigger in time, and even pressing failure may occur. Summary of the invention

[0007] The embodiments of the present application provide a touch pad and an electronic device, which solve the problem in the prior art that when the touch pad is pressed at a position far away from the trigger member (for example, pressing the edge or corner of a touch circuit board), the pressing force and pressing stroke cannot be transmitted to the trigger member in time, and even pressing failure may occur.

[0008] In a first aspect, an embodiment of the present application provides a touch panel, comprising a touch circuit board and a bottom plate stacked in a first direction, the touch circuit board having a first pressing portion and a second pressing portion distributed outside the first pressing portion, and a triggering member being arranged on the first pressing portion. The touch panel also comprises a balance bar arranged between the touch circuit board and the bottom plate, the balance bar having a connection portion and a triggering portion arranged at intervals in the extension direction of the balance bar, the connection portion being connected to the touch circuit board and being arranged corresponding to the second pressing portion in the first direction, and the triggering portion being used to press the triggering member.

[0009] In addition, a support portion is provided on the bottom plate, and the support portion is located between the first pressing portion and the second pressing portion on a plane perpendicular to the first direction, and can support the balance bar to serve as a fulcrum of the balance bar, wherein the fulcrum is located between the connection portion and the trigger portion. When the second pressing portion is pressed, the connection portion of the balance bar can move toward a direction close to the bottom plate under the drive of the pressed second pressing portion, and drive the trigger portion to move toward a direction close to the touch circuit board to press the trigger member.

[0010] The touch panel provided by the present application has a balance bar disposed between the touch circuit board and the bottom plate, and the balance bar uses the support portion on the bottom plate as a fulcrum to form a lever structure, so that the rod segments on both sides of the fulcrum on the balance bar can move in opposite directions. When a position on the touch circuit board that is far from the trigger member (i.e., the second pressing portion) is pressed, the touch circuit board can drive the connecting portion on the balance bar to move toward the bottom plate, and at the same time, the fulcrum tilts up another part of the rod segment of the balance bar, so that the trigger portion moves toward the touch circuit board, squeezing the trigger member to be triggered.

[0011] With the above structure, when the first pressing part of the touch circuit board is pressed, the touch circuit board moves toward the bottom plate, and the pressing force acts directly on the trigger member through the touch circuit board, which can ensure that the trigger member is successfully triggered. When the second pressing part is pressed, the pressing force acts directly on the connecting part of the balance bar through the touch circuit board, driving the connecting part to move, and the triggering part of the balance bar moves toward the touch circuit board under the action of the lever structure to press the trigger member, which can also ensure that the trigger member is successfully triggered. When the position between the first pressing part and the second pressing part is pressed, the touch circuit board moves toward the bottom plate, which can directly squeeze the trigger member on the one hand, and drive the balance bar to move on the other hand. The trigger member can be successfully triggered under the dual action, so pressing each position of the touch circuit board can trigger the trigger member, solving the problem of failure of pressing.

[0012] Furthermore, when the second pressing portion is pressed, the touch circuit board is slightly deformed to drive the balance bar to move and trigger the trigger member. The touch circuit board at this location does not need to produce a large displacement, so pressing is more labor-saving. In addition, the rebound force generated by the slight deformation of the touch circuit board is small, which has little impact on the overall feedback force of the touch pad to the user. When the position between the first pressing portion and the second pressing portion is pressed, the touch circuit board and the balance bar move at the same time, and the trigger member can be triggered within a smaller pressing stroke. The required pressing force is smaller, and the overall feedback force of the touch pad to the user is closer to the rebound force of the trigger member. It can be seen that compared with the prior art, the touch pad has improved the consistency of the pressing stroke and the consistency of the force feedback at various locations.

[0013] Therefore, the touch pad provided by the present application has good consistency in pressing stroke and force feedback at different positions, the pressing feel at each location is relatively uniform, and the trigger member can be successfully triggered even when pressing a position far away from the trigger member, thereby solving the problem of pressing failure. Furthermore, the pressing force and pressing stroke can be quickly transmitted to the trigger member through the balance bar, so that the trigger member has a fast response speed.

[0014] In some embodiments, the touch panel further comprises a support plate, the support plate is fixedly connected to a side of the touch circuit board facing the bottom plate, the balance bar is arranged on a side of the support plate facing away from the touch circuit board, and the connection part of the balance bar is connected to the support plate to be connected to the touch circuit board through the support plate. The support plate can enhance the structural strength of the touch circuit board.

[0015] In some embodiments, the balance pole is divided into a first pole segment and a second pole segment through a fulcrum, the first pole segment includes a connecting portion, the second pole segment includes a triggering portion, there is a first gap between the second pole segment and the support plate in a first direction, and the second pole segment can move in the first gap.

[0016] By adopting the above solution, a certain movement space is reserved between the balance bar and the support plate to ensure that the balance bar can move in the first direction.

[0017] In some embodiments, a first hollow structure is disposed on the bottom plate, the first hollow structure corresponds to the first rod segment of the balance pole in a first direction, and the first rod segment can move in the first hollow structure.

[0018] By adopting the above solution, a certain movement space is reserved between the balance bar and the bottom plate to ensure that the balance bar can move in the first direction.

[0019] In some embodiments, the support plate includes a support plate body and an actuating member, the support plate body is attached to the touch circuit board, and the actuating member is stacked with the triggering member in a first direction.

[0020] The support plate body is provided with a first hollow portion, the action piece is accommodated in the first hollow portion and connected to the support plate body, and the action piece can move relative to the support plate body in a first direction. The triggering part of the balance bar is connected to the action piece, so that the triggering part drives the action piece to move to press the triggering part.

[0021] In some embodiments, the action member includes a main body and a hook connected to the main body, and the two ends of the main body in the first direction are respectively abutted against the trigger member and the bottom plate, and the hook is connected to the trigger part of the balance bar, and the trigger part drives the main body of the action member to move through the hook to press the trigger member.

[0022] The actuating member is connected to the supporting plate body through a plurality of elastic arms, one end of each of the plurality of elastic arms is connected to the actuating member, and the other end is connected to the supporting plate body, and each elastic arm can generate elastic deformation in a first direction so that the actuating member can move relative to the supporting plate body in the first direction.

[0023] By adopting the above solution, the balance bar presses the trigger member through the action member, and the action member is arranged in the first hollow portion of the support plate body, which can reduce the space occupied by the action member in the first direction and is conducive to reducing the thickness of the touch panel.

[0024] In some embodiments, a groove corresponding to the balance pole is disposed on the support plate body, and at least a portion of the structure of the balance pole in the first direction is located in the groove.

[0025] The support plate body is also provided with a clamping portion corresponding to the connecting portion of the balance bar, and the connecting portion is clamped in the clamping portion to connect the connecting portion to the support plate.

[0026] With the above solution, a portion of the balance bar is accommodated in the groove, so that the balance bar is embedded in the support plate body in the first direction, thereby reducing the space occupied by the balance bar in the first direction, which is conducive to reducing the thickness of the touch panel.

[0027] In some embodiments, a second hollow structure is provided on the bottom plate, a buckle portion connected to the bottom plate is provided in the second hollow structure, a second hollow portion corresponding to the second hollow structure is provided on the support plate body, and a buckled portion connected to the support body is provided in the second hollow portion;

[0028] When the touch panel is pressed, the buckle part can move toward the support plate in the second hollow part, and the buckled part can move toward the bottom plate in the second hollow structure. When the touch panel is not pressed, the buckle part and the buckled part are engaged with each other to limit the support plate from moving away from the bottom plate.

[0029] With the above solution, the snapping part and the snapped part are snapped together when the bottom plate is not pressed, and the support part is limited in the first direction to prevent the support plate from being separated from the bottom plate. When the touch panel is pressed, the snapping part and the snapped part can move toward each other in the hollow space, so that the touch circuit board can move toward the bottom plate in the first direction.

[0030] In some embodiments, the locking portion and the locked portion both include a first portion extending along a first direction and a second portion extending along a direction perpendicular to the first direction, and the second portion of the locking portion is located on a side of the second portion of the locked portion away from the bottom plate. When the touch panel is not pressed, the second portion of the locking portion and the second portion of the locked portion abut against each other.

[0031] In some embodiments, in the extension direction of the balance bar, the distance between the fulcrum and the connection part is greater than the distance between the fulcrum and the trigger part. The balance bar and the fulcrum form a force-saving lever, and the pressing force on the connection part can be amplified at the trigger part and applied to the trigger member, so that a smaller pressing force is applied to the second pressing part to trigger the trigger member. This design can further improve the uniformity of the touch pad pressing feel.

[0032] In some embodiments, the balance pole extends along a straight line perpendicular to the first direction.

[0033] In some embodiments, the touch circuit board has two second pressing portions, the first pressing portion is located between the two second pressing portions in the second direction, the touch panel includes at least one balance bar group, each balance bar group in the at least one balance bar group includes two balance bars arranged in the second direction and arranged corresponding to the two pressing portions, and the connecting portion of each balance bar is arranged at the corresponding second pressing portion; wherein the second direction is perpendicular to the first direction.

[0034] In some embodiments, the triggering parts of two balance bars in each balance bar group are connected, so that the two balance bars are configured as an integrated structure, which is convenient for assembling the touch panel.

[0035] In some embodiments, the two balance bars in each balance bar group can generate elastic deformation under the action of external force, so that when the connecting part moves toward the direction close to the bottom plate, it can drive the trigger part to move toward the direction close to the touch circuit board.

[0036] In some embodiments, the triggering parts of the two balancing poles in each balancing pole group are separated from each other. The two balancing poles in each balancing pole group are independent of each other, and one balancing pole will not affect the movement of the other balancing pole.

[0037] In some embodiments, at least one balancing bar group includes two balancing bar groups spaced apart in the third direction, and the two balancing bar groups are axially symmetrically arranged relative to the first axis. The first direction, the second direction, and the third direction are mutually perpendicular, and the first axis is parallel to the second direction and passes through the center of the trigger member. The balancing bar covers a wider range in the third direction, has a higher pressing sensitivity, and is more reliable.

[0038] In some embodiments, two ends of the two balancing pole groups in the second direction are connected to each other to enhance the linkage effect between the balancing poles.

[0039] In some embodiments, two ends of the two balancing pole groups in the second direction are connected by a connecting rod, and the connecting rod extends along the third direction.

[0040] In some embodiments, the touch panel further includes a linkage rod disposed between the touch circuit board and the bottom plate, the linkage rod including a linkage rod body, and two connecting segments respectively disposed at both ends of the linkage rod body in the second direction, and the trigger member is located between the two connecting segments in the second direction. Each of the two connecting segments is rotatably connected to the bottom plate, so that the linkage rod can rotate relative to the bottom plate around a second axis, and the second axis is parallel to the second direction.

[0041] By adopting the above solution, the linkage rod as a whole can rotate around the second axis. When any one connecting segment rotates, it can drive the other connecting segment to rotate synchronously, thereby driving a part of the pressable area of ​​the touch circuit board in the second direction to move synchronously.

[0042] In some embodiments, the touch panel includes a linkage rod and a balance rod group, the linkage rod is spaced apart from the balance rod group in the third direction, and the first direction, the second direction, and the third direction are mutually perpendicular. The linkage rod and the balance rod work together to ensure that the triggering element can be triggered when pressing any part of the touch circuit board.

[0043] In some embodiments, the two balancing bars of the balancing bar group are arranged axially symmetrically with respect to the third axis, and the linkage bar is arranged axially symmetrically with respect to the third axis, and the third axis is parallel to the third direction and passes through the center of the trigger member. That is, the balancing bars and the linkage bar are arranged symmetrically on both sides of the trigger member, so that the hand feeling of pressing the two sides of the touch circuit board is more uniform.

[0044] In a second aspect, an embodiment of the present application further provides an electronic device, including the touch pad provided by any of the above embodiments, which provides high reliability and better user experience when a user uses the touch pad for input. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1a-1b It is a schematic diagram of the structure of a touch panel in the prior art;

[0046] Figure 2 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present application;

[0047] Figure 3a-3c This is a schematic diagram of the three-dimensional structure of the touch panel according to an embodiment of the present application;

[0048] Figure 4 A schematic diagram showing the distribution of the pressing parts in the touch panel according to an embodiment of the present application;

[0049] Figure 5 This is a schematic diagram of the principle structure when the touch panel of the embodiment of the present application is not pressed;

[0050] Figure 6a-6b This is a schematic diagram of the principle structure of the touch panel when it is pressed according to the embodiment of the present application, wherein: Figure 6a The balance bar in is a rigid bar. Figure 6b The balance bar in the embodiment is an elastic bar;

[0051] Figure 7 This is a schematic diagram of the principle structure of another implementation of the embodiment of the present application when the touch panel is not pressed;

[0052] Figure 8a for Figure 4 Sectional view in the AA direction;

[0053] Figure 8b for Figure 8a A partial enlarged view of part B;

[0054] Figure 9a for Figure 4 Cross-sectional view in CC direction;

[0055] Figure 9b for Figure 9a A partial enlarged view of part D in the middle;

[0056] Fig.10a for Figure 4 Cross-sectional view in the EE direction;

[0057] Fig.10b for Fig.10a A partial enlarged view of part F in the middle;

[0058] Fig.11aThis is a schematic diagram of the three-dimensional structure of the support plate in the touch panel of the embodiment of the present application;

[0059] Fig.11b for Fig.11a A partial enlarged view of the middle G part;

[0060] Fig.12a This is a schematic diagram of assembling the support plate and the bottom plate in the touch panel of the embodiment of the present application;

[0061] Figure 12b for Fig.12a A partial enlarged view of the middle H section;

[0062] Fig.12c for Figure 12b A partial cross-sectional view of part II;

[0063] Fig.13a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the first embodiment of the present application;

[0064] Fig.13b for Fig.13a A partial enlarged view of the middle J part;

[0065] Fig.14a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the second embodiment of the present application;

[0066] Fig.14b for Fig.14a A partial enlarged view of the middle K section;

[0067] Fig.15a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the third embodiment of the present application;

[0068] Fig.15b for Fig.15a A partial enlarged view of the middle L part;

[0069] Fig.16a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the fourth embodiment of the present application;

[0070] Fig.16b for Fig.16a A partial enlarged view of the middle M part;

[0071] Figure 17-Figure 18 This is a schematic diagram of the principle structure of a touch panel according to a fourth embodiment of the present application;

[0072] Fig.19a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the fifth embodiment of the present application;

[0073] Fig.19b for Fig.19aA partial enlarged view of the N part;

[0074] Fig.20a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the sixth embodiment of the present application;

[0075] Fig.20b for Fig.20a A partial enlarged view of the middle O part;

[0076] Figure 20c-20d This is a schematic diagram of the installation of the linkage rod in the touch panel of the sixth embodiment of the present application;

[0077] Figure 21a-Figure 21c This is a schematic diagram of the three-dimensional structure of a touch panel according to another embodiment of the present application.

[0078] Existing technology:

[0079] 100': touch panel;

[0080] 1': touch circuit board; 11': trigger component;

[0081] 2': Bottom plate.

[0082] This application:

[0083] 100: touchpad;

[0084] 1: touch circuit board; 10a: fixed end; 10b: free end;

[0085] 11: first pressing portion; 110: triggering member;

[0086] 12: second pressing portion; 13: third pressing portion; 14: fourth pressing portion;

[0087] 2: bottom plate; 21: support portion; 22: first hollow structure;

[0088] 23: second hollow structure; 24: buckle portion; 241: first part; 242: second part;

[0089] 25: snap ring; 26: mounting table;

[0090] 3: balance bar group; 31: balance bar;

[0091] 311: connection part; 312: trigger part;

[0092] 313: first rod section; 314: second rod section;

[0093] 32: connecting rod;

[0094] 4: support plate; 40a: first outer edge; 40b: second outer edge;

[0095] 41: support plate body;

[0096] 411: groove; 412: clamping portion; 413: first hollow portion;

[0097] 414: second hollow portion; 415: buckled portion; 4151: first portion; 4152: second portion;

[0098] 42: Action piece;

[0099] 421: main body; 4211: upper protrusion; 4212: middle plate; 4213: lower protrusion;

[0100] 422: hook; 43: elastic arm; 44: slot;

[0101] 5: linkage rod; 51: linkage rod body; 52: connecting section;

[0102] 60: housing; 61: cover plate; 62: fixing plate; 621: mounting platform;

[0103] 63: first adhesive layer; 64: second adhesive layer; 65: third adhesive layer;

[0104] 71: first gap;

[0105] 200: Electronic equipment;

[0106] 81: first housing; 811: display;

[0107] 82: second housing; 821: keyboard;

[0108] z: first direction; x: second direction; y: third direction;

[0109] P: first axis; Q: second axis; R: third axis. DETAILED DESCRIPTION

[0110] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, the following description will include many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0111] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0112] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0113] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0114] In the description of the present application, it should be understood that "electrical connection" in the present application can be understood as physical contact and electrical conduction between components; it can also be understood as a form in which different components in a circuit structure are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals.

[0115] In the description of the present application, it should be noted that the mutual perpendicularity in the present application is not absolute perpendicularity, and the approximate perpendicularity caused by processing errors and assembly errors (for example, the angle between the two structural features is 89.9°) is also within the scope of mutual perpendicularity in the present application. The mutual parallelism in the present application is also not absolute parallelism, and the approximate parallelism caused by processing errors and assembly errors (for example, the angle between the two structural features is 0.1°) is also within the scope of mutual parallelism in the present application. The axisymmetry in the present application is not absolute axisymmetry, and the approximate axisymmetry caused by processing errors and assembly errors (for example, part of the structure is offset by a certain distance or angle relative to the axis of symmetry) is also within the scope of axisymmetry in the present application. The central symmetry in the present application is not absolute central symmetry, and the approximate central symmetry caused by processing errors and assembly errors (for example, part of the structure is offset by a certain distance or angle relative to the axis of symmetry) is also within the scope of central symmetry in the present application. This application does not make specific restrictions on this.

[0116] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0117] An embodiment of the present application provides a touch pad that solves the problem in the prior art that when the touch pad is pressed at a position far away from the trigger member (for example, pressing the edge or corner of a touch circuit board), the pressing force and pressing stroke cannot be transmitted to the trigger member in time, and even pressing failure may occur.

[0118] The touch panel provided in the embodiment of the present application can be applied to electronic devices, which may include but are not limited to common touch-controlled terminals such as laptop computers, mobile phones, tablet computers, smart watches, laptop keyboards, leather case keyboards, external keyboards, and TV remote controls. The application scenario of the touch panel is described below using a laptop computer as an example.

[0119] See also Figure 2 , Figure 2 It is a schematic diagram of the structure of an electronic device according to an embodiment of the present application.

[0120] like Figure 2 As shown, the electronic device 200 includes a first shell 81 and a second shell 82 that can rotate relative to each other. In some examples, the shell formed by the first shell 81 and the second shell 82 can be the back cover, the middle frame or other frames in the electronic device 200 that play a supporting and mounting role. The present application does not impose any restrictions on this.

[0121] The first housing 81 is provided with a display 811 for displaying images, and the second housing 82 is provided with a host (located inside the second housing 82, which cannot be seen in the figure), as well as input devices such as a keyboard 821 and a touchpad 100. The specific form of the host is not limited, for example, it can be an integrated system including processing modules such as memory, power supply, optical drive, and processor, which can realize multiple functions such as running an operating system, processing various data, running applications, and controlling connection processors. The keyboard 821 and the touchpad 100 are both electrically connected to the host, and the host can obtain the user's operation information through the keyboard 821 and the touchpad 100, and the processor issues corresponding instructions after analysis and calculation.

[0122] In some examples, when the user uses the touchpad 100 for input, operations such as sliding and pressing can be performed on the touchpad 100. The touchpad 100 sends a touch signal to the host according to the user's operation instruction, and the host recognizes and analyzes the received signal and completes the relevant operation, mapping the operation interface on the display 811.

[0123] It should be noted that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 200. In other embodiments, the electronic device 200 may include more or fewer components than those illustrated, for example, it may also include a camera, a speaker, and other devices.

[0124] The structure and working principle of the touch panel 100 provided in the embodiment of the present application will be described below with reference to the accompanying drawings.

[0125] See also Figure 3a-Figure 10b , Figure 3a-3c This is a schematic diagram of the three-dimensional structure of the touch panel according to an embodiment of the present application; Figure 4 A schematic diagram showing the distribution of the pressing parts in the touch panel according to an embodiment of the present application; Figure 5 This is a schematic diagram of the principle structure when the touch panel of the embodiment of the present application is not pressed; Figure 6a-6b This is a schematic diagram of the principle structure of the touch panel when it is pressed according to the embodiment of the present application, wherein: Figure 6a The balance bar in is a rigid bar. Figure 6b The balance bar in the embodiment is an elastic bar; Figure 7 This is a schematic diagram of the principle structure of another implementation of the embodiment of the present application when the touch panel is not pressed; Figure 8a for Figure 4 Sectional view in the AA direction; Figure 8b for Figure 8a A partial enlarged view of part B; Figure 9a for Figure 4 Cross-sectional view in CC direction; Figure 9b for Figure 9a A partial enlarged view of part D in the middle; Fig.10a for Figure 4 Cross-sectional view in the EE direction; Fig.10b for Fig.10a A partial enlarged view of part F.

[0126] like Figure 3a-Figure 10b As shown, the touch panel 100 includes a touch circuit board 1 and a base plate 2 stacked in a first direction z. It should be noted that "pressing the touch panel" can be understood as: applying a pressing force in the first direction z toward the base plate 2 to the touch circuit board 1. The first direction z can be understood as the thickness direction of the touch panel 100. When the touch panel 100 is installed in the electronic device 200, the first direction z is consistent with the thickness direction of the second housing 82.

[0127] Among them, the touch circuit board 1 is a circuit board with functions such as touch recognition, which can detect the position where the user applies pressure or touches, and its specific material and type are not limited. In one example, the touch circuit board 1 can be a printed circuit board (PCB), which implements the touch sensing function of the touch panel 100 by mounting components on the PCB board through surface mount technology or configuring electronic components through dual in-line packaging. Alternatively, the touch circuit board 1 can also use a flexible printed circuit (FPC), and the electronic components that implement functions such as touch recognition are integrated into the flexible circuit board.

[0128] Among them, the type of electronic components is not limited. In one embodiment, the touch circuit board 1 includes a touch sensor (not shown in the figure), which is a sensing device of the touch circuit board 1 and can sense the touch position of the user. Its type may include capacitive touch sensors, etc. The capacitive touch sensor can sense the capacitance change of the user's touch position and output a corresponding touch sensing signal. In other embodiments, the touch sensor can also be other types of sensors such as voltage touch sensors, which are not limited in this application.

[0129] The bottom plate 2 provides support for the touch circuit board 1 and can bear the pressing force applied by the user to the touch circuit board 1. For example, Figure 2 The touch circuit board 1 of the middle touch panel 100 faces the user, the bottom plate 2 is installed below the touch circuit board 1 and fixedly connected to the second shell 82. When the user presses the touch circuit board 1, the pressing force is transmitted to the bottom plate 2 through the touch circuit board 1 and the supporting structure between the touch circuit board 1 and the bottom plate 2, and is absorbed by the bottom plate 2.

[0130] like Figure 3a-3cAs shown, in one embodiment, the touch panel 100 may further include a cover plate 61, which is located on the side of the touch circuit board 1 away from the bottom plate 2 in the first direction z. The cover plate 61 is fixedly connected to the touch circuit board 1 to protect the touch circuit board 1. During use, the user indirectly contacts the touch circuit board 1 through the cover plate 61 and applies pressure to the touch circuit board 1. The cover plate 61 may be a non-conductive rigid object such as glass, PC sheet, ceramic sheet, etc., and this application does not limit this.

[0131] Those skilled in the art will appreciate that the specific connection method between the cover plate 61 and the touch circuit board 1 is not limited. Figure 3c As shown, in one embodiment, a first adhesive layer 63 is provided between the cover plate 61 and the touch circuit board 1, and the two are fixedly connected by the first adhesive layer 63, so that the cover plate 61 is attached to the touch circuit board 1 to achieve enhanced touch sensing effect. The glue in the first adhesive layer 63 can be liquid glue or solid glue, such as mesh double-sided glue or OCA optical glue, etc., and this application does not limit this.

[0132] It should be noted that the touch panel 100 provided in the embodiment of the present application can be either a full-area pressing touch panel or a half-area pressing touch panel. In a full-area pressing touch panel, there is a gap between the entire touch circuit board 1 and the bottom plate 2 that can be moved toward the bottom plate 2. When any part of the touch circuit board 1 is pressed, it can move toward the bottom plate 2 in the first direction z. In a half-area pressing touch panel, only a part of the area on the touch circuit board 1 can move toward the bottom plate 2 when pressed, and the other part remains fixed relative to the bottom plate 2.

[0133] In some example scenarios, the touch circuit board 1 can be divided into a non-pressing area and a pressable area. The non-pressing area remains fixed relative to the base plate 2 and cannot move when pressed. The pressable area can be an entire pressable area, or it can include multiple pressable areas with different functions, for example, it can include a left button pressing area and a right button pressing area. The left button pressing area and the right button pressing area correspond to the left and right button functions of the mouse, respectively. When any one of the pressing areas is pressed, the touch circuit board 1 in the pressing area can move toward the base plate 2 to achieve a click function corresponding to the left or right button of the mouse. It can be understood by those skilled in the art that the above scenario is an example of the area division on the touch circuit board 1 in a semi-domain press touchpad. In actual applications, more ways can be used to divide the area on the touch circuit board 1, and this application does not limit this.

[0134] like Figure 3a-Figure 10bAs shown, in one embodiment, the touch panel 100 is a half-domain pressing touch panel. The touch circuit board 1 has a first pressing portion 11 and a second pressing portion 12 distributed outside the first pressing portion 11. When the first pressing portion 11 and the second pressing portion 12 are pressed, the touch circuit board 1 can move toward the bottom plate 2.

[0135] It will be understood by those skilled in the art that the first pressing portion 11 and the second pressing portion 12 both represent a pressable area on the touch circuit board 1, rather than a point. The second pressing portion 12 as a whole is a pressing area located outside the first pressing portion 11 in a certain direction or in multiple directions, and the specific number is not limited. In one embodiment, the touch circuit board 1 has two second pressing portions 12, and the first pressing portion 11 is located between the two second pressing portions 12 in the second direction x. The second direction x is perpendicular to the first direction z. In an example scenario, the touch panel 100 as a whole is a rectangular structure (that is, the touch circuit board 1 as a whole is a rectangular circuit board), and the second direction x is the length direction of the touch panel 100.

[0136] Furthermore, a trigger member 110 is provided on the first pressing portion 11. The trigger member 110 is used to realize the press trigger function of the touch panel 100, and the side of the trigger member 110 facing the bottom plate 2 protrudes from the touch circuit board 1. When the user presses the touch panel 100, the touch circuit board 1 moves toward the bottom plate 2 along the first direction z, so that the trigger member 110 is squeezed. When the compression amount of the trigger member 110 reaches a certain degree, a trigger signal can be generated, and the host of the electronic device 200 performs a corresponding operation after receiving the trigger signal.

[0137] Specifically, the trigger member 110 can be a switch component with a triggering function, such as a metal dome switch or a push button switch. The metal dome switch is a polyethylene terephthalate (PET) thin sheet containing a metal spring (pot piece). When squeezed, part of its structure is flipped and deformed toward one side of the touch circuit board 1, and is in contact with the circuit on the touch circuit board 1. When the squeezing force disappears, it can automatically return to its initial state. When the push button switch is squeezed, it can be compressed to a certain stroke to connect the internal circuit and send out a trigger signal. When the squeezing force disappears, the push button switch automatically rebounds to its initial position under the action of its own elastic force. In addition to the above examples, the trigger member 110 can also be other forms of trigger devices, and the present application does not limit its specific type and material.

[0138] In addition to the function of sending a trigger signal, the trigger member 110 can also serve as a supporting member between the base plate 2 and the touch circuit board 1. In an example scenario, the trigger member 110 itself can bear a certain range of pressure (such as the pressure of an 80-gram object), and the trigger member 110 can only be compressed when the pressing force exceeds the range. By controlling the weight of the touch circuit board 1 within the weight range that the trigger member 110 can bear, the trigger member 110 can support the touch circuit board 1.

[0139] In one embodiment, the end of the trigger member 110 facing away from the touch circuit board 1 in the first direction z abuts against the bottom plate 2 to serve as a supporting member between the bottom plate 2 and the touch circuit board 1. The trigger member 110 may abut against the bottom plate 2 directly or indirectly, for example, by abutting against the bottom plate 2 through other components, etc., and this application does not limit this. In some feasible scenarios, the trigger member 110 may not abut against the bottom plate 2, and a spring, elastic arm or other structure may be provided between the bottom plate 2 and the touch circuit board 1 as a supporting member, and this application does not limit this.

[0140] Furthermore, the touch panel 100 also includes a balance bar 31 arranged between the touch circuit board 1 and the base plate 2, the balance bar 31 has a connecting portion 311 and a triggering portion 312 arranged at intervals in the extension direction of the balance bar 31, the connecting portion 311 is connected to the touch circuit board 1, and is correspondingly arranged in the first direction z to the second pressing portion 12, and the triggering portion 312 is used to press the trigger member 110.

[0141] The extension direction and shape of the balance bar 31 are not limited, for example, it can extend along a straight line, an arc, a curve, or a broken line. In one embodiment, the balance bar 31 extends along a straight line perpendicular to the first direction z. Specifically, its extension direction can be the second direction x, or a direction that forms an angle with the second direction x, etc. It is only necessary that the connection portion 311 on the balance bar 31 corresponds to the second pressing portion 12 in the first direction z, and the trigger portion 312 can press the trigger member 110.

[0142] Those skilled in the art can understand that the triggering portion 312 of the balance bar 31 can directly press the triggering member 110 (for example, directly abutting against the triggering member 110), or can indirectly press the triggering member 110, for example, indirectly pressing the triggering member 110 through the action member 42, etc., and the present application does not limit this. The manner in which the triggering portion 312 presses the triggering member 110 will be described in detail later and will not be repeated here.

[0143] Furthermore, a support portion 21 is provided on the bottom plate 2, and the support portion 21 is located between the first pressing portion 11 and the second pressing portion 12 on a plane perpendicular to the first direction z, and can support the balance pole 31 to serve as a fulcrum of the balance pole 31, wherein the fulcrum is located between the connecting portion 311 and the triggering portion 312. Figure 6a As shown, when the second pressing portion 12 is pressed, the connecting portion 311 of the balance rod 31 can move toward the direction close to the base plate 2 under the drive of the pressed second pressing portion 12, driving the trigger portion 312 to move toward the direction close to the touch circuit board 1 to press the trigger member 110.

[0144] Or it can be understood that the balance bar 31 and the support part 21 form a lever structure, and the support part 21 serves as a fulcrum to enable the rod segments on both sides of the balance bar 31 to move in opposite directions. When the user presses the second pressing part 12 of the touch circuit board 1, the second pressing part 12 drives the connecting part 311 to move toward the base plate 2 in the first direction z, and the rod segment on one side of the connecting part 311 tilts the rod segment on the other side of the fulcrum, so that the trigger part 312 moves toward the touch circuit board 1 in the first direction z to press the trigger member 110.

[0145] Those skilled in the art will appreciate that the specific number of the balance bars 31 is not limited. In one embodiment, the number of the balance bars 31 corresponds to the number of the second pressing portions 12, and each second pressing portion 12 may correspond to one or more balance bars 31. The possible number of balance bars 31 and their layout in the touch panel 100 will be described in detail later and will not be described here.

[0146] In the touch panel 100 provided in the present application, a balance bar 31 is arranged between the touch circuit board 1 and the bottom plate 2. The balance bar 31 uses the support portion 21 on the bottom plate 2 as a fulcrum to form a lever structure, so that the rod sections on both sides of the fulcrum on the balance bar 31 can move in opposite directions. When a position on the touch circuit board 1 that is far from the trigger member 110 (such as the second pressing portion 12) is pressed, the touch circuit board 1 can drive the connecting portion 311 on the balance bar 31 to move toward the bottom plate 2, and at the same time, the fulcrum tilts up another part of the rod section of the balance bar 31, so that the trigger portion 312 moves toward the touch circuit board 1, squeezing the trigger member 110 to trigger it.

[0147] With the above structure, when the first pressing portion 11 of the touch circuit board 1 is pressed, the touch circuit board 1 moves toward the bottom plate 2, and the pressing force acts directly on the trigger member 110 through the touch circuit board 1, which can ensure that the trigger member 110 is successfully triggered. When the second pressing portion 12 is pressed, the pressing force acts directly on the connection portion 311 of the balance bar 31 through the touch circuit board 1, driving the connection portion 311 to move, and the trigger portion 312 of the balance bar 31 moves toward the touch circuit board 1 under the action of the lever structure to press the trigger member 110, which can also ensure that the trigger member 110 is successfully triggered. When the position between the first pressing portion 11 and the second pressing portion 12 is pressed (for example, the edge position of the second pressing portion 12 close to one side of the trigger member 110), the touch circuit board 1 moves toward the bottom plate 2, which can directly squeeze the trigger member 110 on the one hand, and can also drive the balance bar 31 to move on the other hand. The trigger member 110 can be successfully triggered under the dual action, so pressing each position of the touch circuit board 1 can trigger the trigger member 110, solving the problem of failure of pressing.

[0148] Furthermore, when the second pressing portion 12 is pressed, the touch circuit board 1 only needs to be slightly deformed to drive the balance bar 31 to move and trigger the trigger member 110. The touch circuit board 1 at this location does not need to be displaced significantly, so pressing is more labor-saving. Moreover, the rebound force generated when the touch circuit board 1 is slightly deformed is relatively small, which has little effect on the overall feedback force of the touch panel 100 to the user. When the position between the first pressing portion and the second pressing portion is pressed, the touch circuit board 1 and the balance bar 31 move simultaneously, and the trigger member 110 can be triggered within a relatively small pressing stroke (i.e., the displacement of the pressed portion on the touch circuit board 1 relative to the bottom plate 2 in the first direction z), and the required pressing force is relatively small, so the overall feedback force of the touch panel 100 to the user is closer to the rebound force of the trigger member 110. It can be seen that the touch panel 100 has improved the consistency of the pressing stroke and the consistency of the force feedback at various locations compared to the prior art.

[0149] Therefore, the touch pad 100 provided in the present application has good consistency in the pressing stroke and force feedback at different positions, the pressing feel at each location is relatively uniform, and the trigger member 110 can be successfully triggered even when pressing a position far away from the trigger member 110, thereby solving the problem of pressing failure. Furthermore, the pressing force and pressing stroke can be quickly transmitted to the trigger member through the balance bar, so that the trigger member has a fast response speed.

[0150] Those skilled in the art will appreciate that the balance bar 31 may be a rigid bar or an elastic bar. Figure 6a As shown, when the balance bar 31 is a rigid bar, the connection part 311 moves toward the bottom plate 2 under the action of the pressing force, driving the balance bar 31 as a whole to rotate around a certain axis passing through the fulcrum, so that the bar sections on both sides of the fulcrum move in opposite directions. Figure 6bAs shown, when the balance bar 31 is an elastic bar, when the connection portion 311 is pressed, the balance bar 31 rotates and bends as a whole to produce deformation, so that the side bar section where the trigger portion 312 is located is tilted to press the trigger member 110. The balance bar 31 in the touch panel 100 can be any of the above-mentioned forms of balance bars, and the present application does not limit this.

[0151] Those skilled in the art can understand that the connection part 311 and the trigger part 312 on the balance bar 31 can realize reverse movement by being located on both sides of the fulcrum, and the distance S1 between the fulcrum and the connection part 311, and the distance S2 between the fulcrum and the trigger part 312 are not limited. In one embodiment, in the extension direction of the balance bar 31, the distance S1 between the fulcrum and the connection part 311 is greater than the distance S2 between the fulcrum and the trigger part 312, so that the balance bar 31 and the fulcrum form a labor-saving lever, and the pressing force on the connection part 311 can be amplified at the trigger part 312 and applied to the trigger member 110, so that a smaller pressing force is applied to the second pressing portion 12 to trigger the trigger member 110. This design can further improve the uniformity of the pressing feel of the touch pad 100.

[0152] Those skilled in the art can understand that the positions of the first pressing portion 11 and the second pressing portion 12 on the touch circuit board 1 are not limited, and in addition to the first pressing portion 11 and the second pressing portion 12, the touch circuit board 1 can also include other pressable parts. Figure 4 , Figure 10a-Figure 10b As shown, in one embodiment, the touch circuit board 1 has a fixed end 10a and a free end 10b arranged opposite to each other in the third direction y. On one side of the fixed end 10a, the touch circuit board 1 remains fixed relative to the base plate 2, and on one side of the free end 10b, the touch circuit board 1 can move relative to the base plate 2 in the first direction z. The first direction z, the second direction x, and the third direction y are perpendicular to each other. When the touch panel 100 adopts a rectangular structure as a whole, the third direction y is the width direction of the touch panel 100.

[0153] Or it can be understood that the touch circuit board 1 forms a cantilever beam structure, so that the touch circuit board 1 as a whole is divided into a pressable area and a non-pressable area in the first direction z, and the pressable area is Figure 4 In the area shown by the dotted line frame, the first pressing portion 11 and the second pressing portion 12 are both located in the pressable area.

[0154] The manner in which the fixed end 10a of the touch circuit board 1 is fixed relative to the bottom plate 2 is not limited. In one embodiment, the touch panel 100 further includes a fixing plate 62, which is fixedly connected to the fixed end 10a of the touch circuit board 1 and connected to the second housing 82 of the electronic device 200, so that the fixed end 10a of the touch circuit board 1 is fixed relative to the second housing 82 of the electronic device 200. Since the bottom plate 2 is also fixedly connected to the second housing 82, the fixed end 10a is also fixed relative to the bottom plate 2.

[0155] The specific connection method between the fixing plate 62 and the touch circuit board 1 is not limited. In one embodiment, a second adhesive layer 64 is provided between the fixing plate 62 and the touch circuit board 1, and the two are fixedly connected through the second adhesive layer 64. The colloid in the second adhesive layer 64 can be liquid glue or solid glue, etc., and this application does not limit this.

[0156] The first pressing portion 11 corresponds to Figure 4 The area where the midpoint 2 is located (i.e., the area where the trigger is located), the two second pressing portions 12 correspond to the area where the point 1 is located and the area where the point 3 is located. In one embodiment, the area where the point 1 is located, the area where the point 2 is located, and the area where the point 3 is located together constitute a main pressing area, and the main pressing area covers the side where the free end 10b of the touch pad 100 is located in the third direction y. When using the touch pad 100, the user mainly presses in the main pressing area close to the free end 10b.

[0157] Furthermore, in one embodiment, the pressable area of ​​the touch panel 100 also includes a third pressing portion 13 (the area where point 5 is located) and two fourth pressing portions 14 (the area where point 4 is located and the area where point 6 is located) located on both sides of the third pressing portion 13 in the second direction x, the third pressing portion 13 is located on the side of the first pressing portion 11 close to the fixed end 10a in the third direction y, and the fourth pressing portion 14 is located on the side of the second pressing portion 12 close to the fixed end 10a in the third direction y. When using the touch panel 100, the user may also press inside the third pressing portion 13 and the fourth pressing portion 14, and the pressing force may be transmitted from the touch circuit board 1 to the first pressing portion 11 or the second pressing portion 12 to trigger the trigger member 110. For ease of understanding, the transmission path of the pressing force when pressing various points on the touch circuit board 1 and the principle of triggering the trigger member 110 are listed below:

[0158] 1. When the pressing point 2 is located in the area (the first pressing portion 11), the pressing force is directly transmitted from the touch circuit board 1 to the trigger element 110, so that the trigger element 110 is squeezed and triggered.

[0159] 2. When the pressing point 1 is located in the area (second pressing portion 12 ), the pressing force is transmitted from the touch circuit board 1 to the connecting portion 311 of the side balance bar 31 , and the triggering portion 312 of the side balance bar 31 presses and triggers the triggering member 110 .

[0160] 3. When the area where the pressing point 3 is located (the second pressing portion 12 ), the pressing force is transmitted from the touch circuit board 1 to the connecting portion 311 of the side balance bar 31 , and the triggering portion of the side balance bar 31 presses and triggers the triggering member 110 .

[0161] 4. When the area where point 5 is located (the third pressing portion 13) is pressed, the pressing force is transmitted from the touch circuit board 1 to the area where point 2 is located (the first pressing portion 11), and the free end 10b of the touch circuit board 1 moves toward the base plate 2, so that the trigger member 110 is squeezed and triggered.

[0162] 5. When the pressing point 4 is located (the fourth pressing portion 14), the pressing force is transmitted from the touch circuit board 1 to the area where the point 1 is located (the second pressing portion 12). The area where the point 1 is located moves toward the bottom plate 2, driving the connecting portion 311 of the side balance bar 31 to move, and the triggering portion 312 of the side balance bar 31 presses and triggers the triggering member 110.

[0163] 6. When the pressing point 6 is located (the fourth pressing portion 14), the pressing force is transmitted from the touch circuit board 1 to the area where the point 3 is located (the second pressing portion 12), and the area where the point 3 is located moves toward the bottom plate 2, driving the connecting portion 311 of the side balance bar 31 to move, and the triggering portion 312 of the side balance bar 31 presses and triggers the triggering member 110.

[0164] It should be noted that when this structure is adopted, the distance between the pressing point and the free end 10b of the touch panel 100 is larger when pressing the third pressing portion 13 and the fourth pressing portion 14, which is more laborious and has a smaller pressing stroke than the first pressing portion 11 and the second pressing portion 12. Therefore, the consistency of the pressing stroke and the consistency of the force feedback at different positions of the touch panel 100 are only reflected in the pressing areas arranged along the second direction x (such as the consistency between the first pressing portion 11 and the second pressing portion 12, and the consistency between the third pressing portion 13 and the fourth pressing portion 14), rather than in each pressing area in the entire pressable area.

[0165] Those skilled in the art can understand that the layout of the pressing parts on the above-mentioned touch circuit board 1 is only a feasible implementation method and does not limit the touch panel 100 provided in the present application.

[0166] Those skilled in the art will appreciate that the connection portion 311 of the balance bar 31 may be directly connected to the touch circuit board 1 or indirectly connected to the touch circuit board 1. Figure 3c , Figure 7 , Figure 8a-Figure 10b As shown, in one embodiment, the touch panel 100 further includes a support plate 4, the support plate 4 is fixedly connected to the side of the touch circuit board 1 facing the bottom plate 2, the balance bar 31 is arranged on the side of the support plate 4 away from the touch circuit board 1, and the connection portion 311 of the balance bar 31 is connected to the support plate 4, so as to be connected to the touch circuit board 1 through the support plate 4. Or it can be understood that the support plate 4 is arranged on the side of the touch circuit board 1 close to the bottom plate 2, so as to strengthen the structural strength of the touch circuit board 1, and the balance bar 31 is installed on the support plate 4. Among them, the specific connection method between the support plate 4 and the touch circuit board 1 is not limited. In one embodiment, a third adhesive layer 65 is arranged between the support plate 4 and the touch circuit board 1, and the two are fixedly connected by the third adhesive layer 65. The colloid in the third adhesive layer 65 can be liquid glue or solid glue, etc., and this application does not limit this.

[0167] Those skilled in the art will appreciate that the specific structure of the support plate 4 is not limited. The following specifically describes the structure of the support plate 4 and the matching method with the balance bar 31 and the bottom plate 2 in conjunction with the accompanying drawings.

[0168] See also Figure 11a-Figure 11b , Fig.11a This is a schematic diagram of the three-dimensional structure of the support plate in the touch panel of the embodiment of the present application; Fig.11b for Fig.11a A partial enlarged view of part G in the middle.

[0169] like Figure 11a-Figure 11b As shown, in one embodiment, the support plate 4 includes a support plate body 41 and an actuating member 42, the support plate body 41 is attached to the touch circuit board 1, and the actuating member 42 is stacked with the trigger member 110 in the first direction z. A first hollow portion 413 is provided on the support plate body 41, the actuating member 42 is accommodated in the first hollow portion 413, and is connected to the support plate body 41, and the actuating member 42 can move relative to the support plate body 41 in the first direction z. The triggering portion 312 of the balance bar 31 is connected to the actuating member 42 to drive the actuating member 42 to move through the triggering portion 312 to press the triggering member 110. Or it can be understood that, as Figure 10b-Figure 11b As shown, the action member 42 is disposed in the support plate body 41 in the first direction z and is located between the trigger member 110 and the bottom plate 2. The trigger portion 312 of the balance bar 31 is connected to the action member 42. When the trigger portion 312 moves, it can drive the action member 42 to move in the first direction z and press the trigger member 110. The action member 42 is disposed in the first hollow portion 413 of the support plate body 41, which can reduce the space occupied by the action member 42 in the first direction z, which is conducive to reducing the thickness of the touch panel 100.

[0170] The specific structure of the action member 42 is not limited. Fig.10b , Figure 11a-Figure 11b As shown, in one embodiment, the action member 42 includes a main body 421 and a hook 422 connected to the main body 421, the two ends of the main body 421 in the first direction z are respectively abutted against the trigger member 110 and the bottom plate 2, the hook 422 is connected to the trigger portion 312 of the balance bar 31, and the trigger portion 312 drives the main body 421 of the action member 42 to move through the hook 422 to press the trigger member 110. The number of the hooks 422 is not limited, and can be specifically set according to the number of balance bars 31. For example, a hook 422 can be set corresponding to the trigger portion 312 of each balance bar 31, or two adjacent balance bars 31 can share a hook 422, etc., which will be described in detail later.

[0171] In one embodiment, the actuating member 42 is connected to the supporting plate body 41 through a plurality of elastic arms 43, so that the actuating member 42 is fixed relative to the supporting plate body 41 on a plane perpendicular to the first direction z. One end of each elastic arm 43 is connected to the actuating member 42, and the other end is connected to the supporting plate body 41, and each elastic arm 43 can generate elastic deformation in the first direction z, so that the actuating member 42 can move relative to the supporting plate body 41 in the first direction z.

[0172] The specific number of the elastic arms 43 is not limited, for example, it can be 2, 3, 4, etc., or it can be only one. In one embodiment, the action member 42 is connected to the support plate body 41 through two elastic arms 43, and the two elastic arms 43 are respectively connected to the two sides of the main body 421 of the action member 42 in the third direction y. In other alternative embodiments, the elastic arm 43 can also be connected to the hook 422 of the action member 42, and this application does not limit this.

[0173] It will be appreciated by those skilled in the art that the specific shape of the elastic arm 43 is not limited. Figure 11a-Figure 11b As shown, in one embodiment, each elastic arm 43 adopts a sheet-like structure as a whole, and extends along a curve in a plane perpendicular to the first direction z. With this structure, the thickness of the elastic arm 43 is relatively thin, and the space occupied in the first direction z is small, and the overall length of the elastic arm 43 is relatively long, which can produce more elastic deformation. In other alternative embodiments, the elastic arm 43 may not adopt a sheet-like structure, and may also extend along a straight line, a broken line, an arc, etc. in a plane perpendicular to the first direction z, and the present application does not limit this.

[0174] It can be understood by those skilled in the art that the specific structure of the main body 421 of the action member 42 is not limited. In one embodiment, the main body 421 includes an upper protrusion 4211, an intermediate plate 4212 and a lower protrusion 4213 stacked in the first direction z, the upper protrusion 4211 abuts against the trigger member 110, the lower protrusion 4213 abuts against the bottom plate 2, and the hook 422 and the elastic arm 43 are both connected to the intermediate plate 4212. In other alternative embodiments, the action member 42 may also adopt other structures, which are not listed one by one in this application.

[0175] like Fig.11a As shown, in one embodiment, a groove 411 corresponding to the balance bar 31 is provided on the support plate body 41, and at least a portion of the structure of the balance bar 31 in the first direction z is located in the groove 411. Alternatively, it can be understood that a portion of the structure of the balance bar 31 is accommodated in the groove 411, so that the balance bar 31 is embedded in the support plate body 41 in the first direction z, thereby reducing the space occupied by the balance bar 31 in the first direction z, which is conducive to reducing the thickness of the touch panel 100.

[0176] In one embodiment, the support plate body 41 is further provided with a clamping portion 412 corresponding to the connection portion 311 of the balance pole 31, and the connection portion 311 is clamped in the clamping portion 412 to connect the connection portion 311 to the support plate 4. The specific structure of the clamping portion 412 is not limited, for example, it can be a buckle, a slot, a hook, etc. In one embodiment, in order to facilitate the installation of the balance pole 31, the clamping portion 412 is set as a slot, which has an opening facing the bottom plate 2, and the connection portion 311 of the balance pole 31 can be installed in the slot from the opening.

[0177] Those skilled in the art can understand that a certain amount of movement space must be reserved between the balance bar 31 and the support plate 4 and the bottom plate 2 to ensure that the balance bar 31 can move in the first direction z. Figure 7 , Figure 9b As shown, in one embodiment, the balancing rod 31 is divided into a first rod segment 313 and a second rod segment 314 by a fulcrum, the first rod segment 313 includes a connection portion 311, the second rod segment 314 includes a trigger portion 312, and a first gap 71 is provided between the second rod segment 314 and the support plate 4 in the first direction z, and the second rod segment 314 can move in the first gap 71. Figure 9b , Fig.11a As shown, in one embodiment, only a portion of the structure of the balance pole 31 in the first direction z is located in the groove 411 , and the gap between the second rod segment 314 of the balance pole 31 and the groove 411 in the first direction z is a first gap 71 .

[0178] like Figure 7 , Figure 9bAs shown, in one embodiment, a first hollow structure 22 is provided on the bottom plate 2, and the first hollow structure 22 corresponds to the first rod segment 313 of the balance pole 31 in the first direction z, and the first rod segment 313 can move in the first hollow structure 22. It should be noted that the above structure is only one possible embodiment. In other alternative embodiments, the first hollow structure 22 may not be provided on the bottom plate 2, for example, a sufficient gap may be directly reserved between the first rod segment 313 of the balance pole 31 and the bottom plate 2 as a movable space, etc., and the present application does not limit this.

[0179] Those skilled in the art can understand that some connection is required between the support plate 4 and the bottom plate 2 to ensure the stability of the touch circuit board 1 in the second direction x and the third direction y. The following describes in detail possible connection modes between the support plate 4 and the bottom plate 2 in conjunction with the accompanying drawings.

[0180] See also Figure 12a-Figure 12c , Fig.12a This is a schematic diagram of assembling the support plate and the bottom plate in the touch panel of the embodiment of the present application; Figure 12b for Fig.12a A partial enlarged view of the middle H section; Fig.12c for Figure 12b Partial cross-sectional view of part II.

[0181] like Figure 12a-Figure 12c As shown, in one embodiment, the support plate 4 and the base plate 2 are connected by snaps. Specifically, a second hollow structure 23 is provided on the base plate 2, a snap portion 24 connected to the base plate 2 is provided in the second hollow structure 23, a second hollow portion 414 corresponding to the second hollow structure 23 is provided on the support plate body 41, and a snapped portion 415 connected to the support portion 21 body is provided in the second hollow portion 414. When the touch panel 100 is pressed, the snap portion 24 can move toward the support plate 4 in the second hollow portion 414, and the snapped portion 415 can move toward the base plate 2 in the second hollow structure 23. When the touch panel 100 is not pressed, the snap portion 24 and the snapped portion 415 are engaged with each other to limit the support plate 4 from moving in a direction away from the base plate 2.

[0182] With this structure, the buckle portion 24 and the buckled portion 415 are partially accommodated in the hollowed-out part, which occupies less space and is easy to process. In addition, the buckle portion 24 and the buckled portion 415 are engaged with each other when the bottom plate 2 is not pressed, and the support portion 21 is limited in the first direction z to prevent the support plate 4 from being separated from the bottom plate 2. When the touch panel 100 is pressed, the buckle portion 24 and the buckled portion 415 can move toward each other in the hollowed-out space, so that the touch circuit board 1 can move toward the bottom plate 2 in the first direction z.

[0183] It can be understood by those skilled in the art that the specific structures of the buckle portion 24 and the buckled portion 415 are not limited. Fig.12c As shown, in one embodiment, the buckle portion 24 includes a first portion 241 extending along a first direction z, and a second portion 242 extending in a direction perpendicular to the first direction z, and the buckled portion 415 also includes a first portion 4151 extending in the first direction z, and a second portion 4152 extending in a direction perpendicular to the first direction z. The second portion 242 of the buckle portion 24 is located on the side of the second portion 4152 of the buckled portion 415 away from the bottom plate 2. When the touch panel 100 is not pressed, the second portion 4152 of the buckle portion 24 abuts against the second portion 4152 of the buckled portion 415. Or it can be understood that the buckle portion 24 and the buckled portion 415 are opposite "L"-shaped structures, and the two "L"-shaped structures are engaged with each other. In other alternative embodiments, the buckle portion 24 and the buckled portion 415 can also be opposite hook structures, "T"-shaped structures, etc., which are not listed one by one in this application.

[0184] It should be noted that the specific number of the buckle portion 24 and the buckled portion 415 is not limited, and there can be one or more, and generally they can correspond one to one. Figure 4 , Figure 12a-12b As shown, in one embodiment, four snap parts 24 are provided on the bottom plate 2, and four snap parts 415 are provided on the support plate 4, and the four snap parts 24 and the four snap parts 415 correspond one to one in the first direction z. For the convenience of description, the edge of the support plate 4 close to the free end 10b of the touch circuit board 1 in the third direction y is defined as the first outer edge 40a, and the edge close to the fixed end 10a is defined as the second outer edge 40b. In one embodiment, two of the four snap parts 415 are located between the first outer edge 40a and the second outer edge 40b of the support plate 4 in the third direction y, and the other two snap parts 415 are located on the first outer edge 40a of the support plate 4. In addition, the four snap parts 415 are distributed in an axisymmetric manner as a whole in the second direction x. The layout of the four snap parts 24 on the bottom plate 2 corresponds to the snap parts 415, and this application will not repeat them. In other alternative embodiments, the snap-fitting portion 24 and the snap-fitted portion 415 may also adopt other layouts, which is not limited in the present application.

[0185] The above is a detailed description of the working principle, overall structure and coordination relationship between the various components of the touch panel 100 provided in the present application. The possible number and layout of the balance bars 31 in the touch panel 100 will be expanded in conjunction with the accompanying drawings.

[0186] See also Figure 13a-Figure 20d , Fig.13a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the first embodiment of the present application; Fig.13b for Fig.13a A partial enlarged view of the middle J part; Fig.14a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the second embodiment of the present application; Fig.14b for Fig.14a A partial enlarged view of the middle K section; Fig.15a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the third embodiment of the present application; Fig.15b for Fig.15a A partial enlarged view of the middle L part; Fig.16a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the fourth embodiment of the present application; Fig.16b for Fig.16a A partial enlarged view of the middle M part; Figure 17-Figure 18 This is a schematic diagram of the principle structure of a touch panel according to a fourth embodiment of the present application; Fig.19a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the fifth embodiment of the present application; Fig.19b for Fig.19a A partial enlarged view of the N part; Fig.20a This is a schematic diagram of the assembly structure of the balance bar and the support plate in the touch panel of the sixth embodiment of the present application; Fig.20b for Fig.20a A partial enlarged view of the middle O part; Figure 20c-20d This is a schematic diagram of the installation of the linkage rod in the touch panel of the sixth embodiment of the present application.

[0187] like Figure 13a-Figure 20b As shown, in one embodiment, the touch panel 100 includes at least one balance bar group 3, each balance bar group 3 includes two balance bars 31 arranged in the second direction x and arranged corresponding to the two pressing portions, and the connection portion 311 of each balance bar 31 is arranged at the corresponding second pressing portion 12. The specific number of the balance bar groups 3 is not limited, for example, there can be 1, 2 or more balance bar groups 3.

[0188] like Figure 13a-Figure 14b , 20a- Fig.20b As shown, in one embodiment, the touch panel 100 includes a balance bar group 3, and the position of the balance bar group 3 is not limited. Figure 13a-13b As shown, in one embodiment, a balance bar group 3 is located on the side of the action member 42 close to the first outer edge 40a of the support plate 4 in the third direction y. Figure 14a-14b As shown, in an alternative embodiment, a balance bar group 3 is located on the side of the action member 42 close to the second outer edge 40b of the support plate 4 in the third direction y. Figure 20a-Figure 20b As shown, in another alternative embodiment, a balance pole set 3 passes entirely through the center of the action member 42 in the third direction y.

[0189] like Figure 15a-Figure 16b , Figure 19a-19b As shown, in one embodiment, the touch panel 100 includes two balance bar groups 3 spaced apart in the third direction y, and the two balance bar groups 3 are axially symmetrically arranged relative to the first axis P. The first axis P is parallel to the second direction x and passes through the center of the trigger member 110. Or it can be understood that each second pressing portion 12 corresponds to the connection portion 311 of the two balance bars 31, and when any second pressing portion 12 is pressed, the two balance bars 31 can be linked to move at the same time, and the triggering portions 312 of the two balance bars 31 jointly drive the action member 42 to move and trigger the trigger member 110. With this structure, the balance bar 31 covers a wider range in the third direction y, has a higher pressing sensitivity, and is more reliable.

[0190] Further, when the touch panel 100 includes two balance bar groups 3 spaced apart in the third direction y, the action member 42 also includes two hooks 422, which are respectively located on both sides of the main body 421 in the third direction y, and each hook 422 is respectively connected to a corresponding balance bar group 3. In addition, the two balance bars 31 in each balance bar group 3 share one hook 422. In an alternative embodiment, the two balance bars 31 in each balance bar group 3 may not share one hook 422, for example, four hooks 422 may be provided in the action member 42, and the four hooks 422 correspond to the four balance bars 31 in the two balance bar groups 3, respectively.

[0191] It should be noted that the two balancing rod groups 3 can be independent of each other or have some connection structures, which is not limited in the present application.

[0192] like Figure 19a-19b As shown, in one embodiment, the two balance bar groups 3 are connected at both ends in the second direction x. Or it can be understood that the ends of the two balance bar groups 31 located on the same side of the trigger member 110 in the second direction x are connected to enhance the linkage effect between the balance bar groups 31 on this side. Among them, the way of connecting the two ends of the balance bar group 3 is not limited. In one embodiment, the two balance bar groups 3 are connected at both ends in the second direction x by a connecting rod 32, and the connecting rod 32 extends along the third direction y. Or it can be understood that the two balance bar groups 31 located on the same side of the trigger member 110 in the second direction x and the connecting rod 32 therebetween together form a "U"-shaped rod. In other alternative embodiments, the two ends of the balance bar group 3 can also be connected in other ways, and the present application does not limit this.

[0193] It should be noted that the two balancing poles 31 in each balancing pole group 3 can be separated from each other or can be an integrated structure. Figure 15a-Figure 15b , Figure 19a-Figure 20bAs shown, in one embodiment, the triggering parts 312 of the two balancing poles 31 in each balancing pole group 3 are separated from each other. With this structure, the two balancing poles 31 in each balancing pole group 3 are independent of each other, and one balancing pole 31 will not affect the movement of the other balancing pole 31.

[0194] like Figure 13a-Figure 14b , Figure 16a-Figure 18 As shown, in one embodiment, the triggering parts 312 of the two balancing bars 31 in each balancing bar group 3 are connected, so that the two balancing bars 31 are configured as an integrated structure. The two balancing bars 31 in each balancing bar group 3 can produce elastic deformation under the action of external force, so that when the connecting part 311 moves toward the direction close to the bottom plate 2, it can drive the triggering part 312 to move toward the direction close to the touch circuit board 1. With this structure, one of the balancing bars 31 will resist the movement of the other balancing bar 31, so the balancing bar 31 needs to produce its own deformation to trigger the trigger member 110. The following is combined with Figure 17-Figure 18 The working principle of the balance bar group 3 adopting this structure is described in detail.

[0195] like Figure 17-Figure 18 As shown, the integrated balancing rod group 3 and the two corresponding supporting parts 21 on the bottom plate 2 form a "double-pivot" lever structure. Fig.18 When the second pressing portion 12 on the left side is pressed, the connecting portion 311 in the left balance bar 31 of the balance bar group 3 moves toward the base plate 2, while the connecting portion 311 in the right balance bar 31 remains unchanged or only changes slightly, and the rod section between the two fulcrums in the balance bar group 3 arches upward, and the triggering portions 312 of the left balance bar 31 and the right balance bar 31 jointly press the triggering member 110.

[0196] It should be noted that the touch panel 100 structures using the integrated balance bar set 3 and the split balance bar set 3 have been analyzed through simulation, and the analysis results show that both structures can achieve the effect of triggering the trigger member 110 through the balance bar 31 .

[0197] like Fig.20a As shown, in one embodiment, the touch panel 100 further includes a linkage rod 5 disposed between the touch circuit board 1 and the bottom plate 2, the linkage rod 5 includes a linkage rod body 51, and two connecting segments 52 respectively disposed at both ends of the linkage rod body 51 in the second direction x, and the trigger member 110 is located between the two connecting segments 52 in the second direction x. Each connecting segment 52 is rotatably connected to the bottom plate 2, so that the linkage rod 5 can rotate around the second axis Q relative to the bottom plate 2, and the second axis Q is parallel to the second direction x.

[0198] Or it can be understood that the linkage rod 5 as a whole can rotate around the second axis Q, and when any one of the connecting sections 52 rotates, it can drive the other connecting section 52 to rotate synchronously. With such a structure, a part of the pressable area of ​​the touch circuit board 1 in the second direction x (for example, it can be the entire free end 10b of the touch circuit board 1) can be driven to move synchronously. For example, in one embodiment, the linkage rod body 51 of the linkage rod 5 is connected to the touch circuit board 1. When one of the second pressing parts 12 on the touch circuit board 1 is pressed, the second pressing part 12 moves toward the bottom plate 2, and the shaft section on the side where the second pressing part 12 is located rotates relative to the bottom plate 2, and at the same time drives the other shaft section to rotate, so that the second pressing part 12 on the side where the other shaft section is located, and the first pressing part 11 between the two second pressing parts 12 also move toward the bottom plate 2 at the same time, so that the trigger member 110 is squeezed.

[0199] The installation method of the linkage rod 5 in the touch panel 100 is not limited. Figure 20c-20d As shown, in one embodiment, the linkage rod 5 is mounted on the support plate 4 to be connected to the touch circuit board 1 through the support plate 4. Specifically, the support plate 4 is provided with a plurality of slots 44 arranged at intervals along the second direction x, and the linkage rod body 51 is engaged in the plurality of slots 44. In addition, a snap ring 25 is provided at each end of the base plate 2 in the second direction x, and the two connecting sections 52 are respectively engaged in the snap rings 25 on the same side thereof. With this structure, the second axis Q is parallel to the central axis of the linkage rod body 51. When the linkage rod 5 rotates, the linkage rod body 51 rotates in the plurality of slots 44, and the connecting section 52 rotates and slides in the snap ring 25. In other alternative embodiments, the linkage rod 5 can also be installed in the touch panel 100 in other ways, which are not listed one by one in this application.

[0200] Those skilled in the art can understand that the number of linkage rods 5 is not limited. In one embodiment, the touch panel 100 includes a linkage rod 5 and a balance rod group 3, and the linkage rod 5 is spaced apart from the balance rod group 3 in the third direction y. The linkage rod 5 and the balance rod 31 work together to ensure that the trigger member 110 can be triggered when pressing any part of the touch circuit board 1.

[0201] It should be noted that the specific layout of the balance bar 31 and the linkage bar 5 is not limited. Fig.20a As shown, in one embodiment, the two balancing bars 31 of the balancing bar group 3 are axially symmetrically arranged with respect to the third axis R, and the linkage bar 5 is axially symmetrically arranged with respect to the third axis R, and the third axis R is parallel to the third direction y and passes through the center of the trigger member 110. That is, the balancing bars 31 and the linkage bar 5 are symmetrically arranged on both sides of the trigger member 110, so that the hand feeling of pressing the two sides of the touch circuit board 1 is more uniform.

[0202] See also Figure 21a-Figure 21c , Figure 21a-Figure 21c FIG. 4 is a schematic diagram of a three-dimensional structure of a touch panel according to another embodiment of the present application.

[0203] like Figure 21a-Figure 21c As shown, in one embodiment, the touch panel 100 may further include a housing 60. The housing 60 may be a separate housing of the touch panel 100, or the housing structure of the electronic device 200 may be reused as the housing 60 of the touch panel 100, for example, the second housing 82 of the electronic device 200 may be reused as the housing 60 of the touch panel 100.

[0204] A storage space is formed in the housing 60, and the touch circuit board 1, the support plate 4, the cover plate 61 and the balance bars 31 are all located in the storage space. In addition, the surface of the cover plate 61 on the side away from the bottom plate 2 in the first direction z is not covered by the housing 60, so that the user can touch the cover plate 61 and operate on the touch circuit board 1 through the cover plate 61. The specific structure of the housing 60 is not limited. In one embodiment, the housing 60 is a hollow frame structure as a whole, and the surface of the cover plate 61 on the side away from the bottom plate 2 in the first direction z is overlapped with the hollow part of the housing 60.

[0205] Furthermore, the housing 60 is fixedly connected to the second housing 82 of the electronic device 200, and the bottom plate 2 and the fixing plate 62 are both mounted on the housing 60, so that the touch panel 100 is integrally mounted on the second housing 82 of the electronic device 200. The mounting method of the bottom plate 2 and the fixing plate 62 to the housing 60 is not limited. For example, the bottom plate 2 and the fixing plate 62 can be mounted to the housing 60 by bolting, welding, riveting, etc.

[0206] like Figure 21b As shown, in one embodiment, a plurality of mounting platforms 26 are provided on the bottom plate 2, and screws or bolts are passed through the mounting platforms 26 to fix the bottom plate 2 to the housing 60. The specific number and layout of the mounting platforms 26 are not limited. In one embodiment, a mounting platform 26 is provided at each end of the bottom plate 2 in the second direction x, and a mounting platform 26 is provided at the edge of the bottom plate 2 close to the free end 10b of the touch circuit board 1.

[0207] like Figure 21b As shown, in one embodiment, a plurality of mounting platforms 621 are also provided on the fixing plate 62, and the fixing plate 62 is fixedly connected to the housing 60 by passing screws or bolts through the mounting platforms 26. The specific number and layout of the mounting platforms 621 are not limited. In one embodiment, a mounting platform 621 is provided at each end of the fixing plate 62 in the second direction x, and three mounting platforms 621 are arranged at intervals along the second direction x at the edge of the fixing plate 62 close to the fixing end 10a of the touch circuit board 1.

[0208] Those skilled in the art will appreciate that the number and positions of the mounting platforms on the base plate 2 and the fixing plate 62 are merely examples and do not limit the touch panel 100 provided in the present application.

[0209] In summary, the touch pad 100 provided in the present application has good consistency in pressing stroke and force feedback at different positions, the pressing feel at each location is relatively uniform, and the trigger member can be successfully triggered even when pressing a position far from the trigger member, thereby solving the problem of pressing failure, improving the reliability of electronic devices when using touch pad input, and providing a better user experience.

[0210] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A touch panel, comprising a touch circuit board and a bottom board stacked in a first direction, wherein the touch circuit board is provided with a trigger member; characterized in that: The touch panel further comprises a balance bar disposed between the touch circuit board and the bottom plate, the balance bar comprising a connection portion and a trigger portion disposed at intervals in the extension direction of the balance bar, the connection portion being connected to the touch circuit board, and the trigger portion being used to press the trigger member; The bottom plate is also provided with a support portion, and the support portion can support the balance pole to serve as a fulcrum of the balance pole; When the position of the touch circuit board corresponding to the connecting part is pressed, the connecting part can move toward the direction close to the bottom plate and drive the triggering part to move toward the direction close to the touch circuit board to press the triggering member.

2. The touch panel according to claim 1, wherein: The touch panel also includes a support plate, which is fixedly connected to a side of the touch circuit board facing the bottom plate. The balance bar is arranged on a side of the support plate away from the touch circuit board, and the connecting portion of the balance bar is connected to the support plate to be connected to the touch circuit board through the support plate.

3. The touch panel according to claim 2, wherein: The balancing rod is divided into a first rod segment and a second rod segment by the fulcrum, the first rod segment includes the connecting portion, the second rod segment includes the triggering portion, a first gap is provided between the second rod segment and the support plate in the first direction, and the second rod segment can move within the first gap.

4. The touch panel according to claim 3, wherein: A first hollow structure is disposed on the bottom plate. The first hollow structure corresponds to the first rod segment of the balance rod in the first direction. The first rod segment can move in the first hollow structure.

5. The touch panel according to any one of claims 2 to 4, characterized in that: The support plate comprises a support plate body and an actuating member, the support plate body is attached to the touch circuit board, and the actuating member is stacked with the triggering member in the first direction; A first hollow portion is provided on the support plate body, the action piece is accommodated in the first hollow portion and connected to the support plate body, and the action piece can move relative to the support plate body in the first direction; the trigger part of the balance bar is connected to the action piece to drive the action piece to move through the trigger part to press the trigger piece.

6. The touch panel according to claim 5, wherein: The action member includes a main body and a hook connected to the main body, two ends of the main body in the first direction are respectively in contact with the trigger member and the bottom plate, the hook is connected to the trigger part of the balance bar, and the trigger part drives the main body of the action member to move through the hook to press the trigger member; The actuating member is connected to the support plate body via a plurality of elastic arms, one end of each of the plurality of elastic arms is connected to the actuating member, and the other end is connected to the support plate body, and each of the elastic arms can generate elastic deformation in the first direction so that the actuating member can move relative to the support plate body in the first direction.

7. The touch panel according to claim 5 or 6, characterized in that: The support plate body is provided with a groove corresponding to the balance pole, and at least a part of the structure of the balance pole in the first direction is located in the groove; The support plate body is also provided with a clamping portion corresponding to the connecting portion of the balance pole, and the connecting portion is clamped in the clamping portion to connect the connecting portion to the support plate.

8. The touch panel according to any one of claims 5 to 7, characterized in that: The bottom plate is provided with a second hollow structure, a buckle portion connected to the bottom plate is provided in the second hollow structure, a second hollow portion corresponding to the second hollow structure is provided on the support plate body, and a buckled portion connected to the support body is provided in the second hollow portion; When the touch panel is pressed, the buckle portion can move in the second hollow portion toward the support plate, and the buckled portion can move in the second hollow structure toward the bottom plate; When the touch panel is not pressed, the locking portion and the locked portion are locked with each other to limit the support plate from moving in a direction away from the bottom plate.

9. The touch panel according to claim 8, wherein: The buckle portion and the buckled portion each include a first portion extending along the first direction and a second portion extending along a direction perpendicular to the first direction, and the second portion of the buckle portion is located at a side of the second portion of the buckled portion away from the bottom plate; When the touch panel is not pressed, the second portion of the buckling portion and the second portion of the buckled portion abut against each other.

10. The touch panel according to any one of claims 1 to 4, characterized in that: The triggering portion of the balance rod is used to directly press the triggering member.

11. The touch panel according to any one of claims 1 to 10, characterized in that: In the extension direction of the balance pole, the distance between the fulcrum and the connecting portion is greater than the distance between the fulcrum and the triggering portion.

12. The touch panel according to any one of claims 1 to 11, characterized in that: The balance pole extends along a straight line perpendicular to the first direction.

13. The touch panel according to any one of claims 1 to 12, characterized in that: The touch panel includes at least one balance bar group, each balance bar group in the at least one balance bar group includes two balance bars arranged in a second direction; wherein the second direction is perpendicular to the first direction.

14. The touch panel according to claim 13, wherein: The triggering parts of the two balance poles in each balance pole group are connected, so that the two balance poles are configured as an integrated structure.

15. The touch panel according to claim 13, wherein: The triggering parts of the two balance poles in each balance pole group are separated from each other.

16. The touch panel according to any one of claims 13 to 15, characterized in that: The two balance bars in each balance bar group can generate elastic deformation under the action of external force, so that when the connecting part moves toward the direction close to the bottom plate, it can drive the trigger part to move toward the direction close to the touch circuit board.

17. The touch panel according to any one of claims 13 to 16, characterized in that: The at least one balance bar group includes two balance bar groups spaced apart in a third direction, and the two balance bar groups are axially symmetrically arranged relative to a first axis; wherein the first direction, the second direction and the third direction are perpendicular to each other, and the first axis is parallel to the second direction and passes through the center of the trigger member.

18. The touch panel according to claim 17, wherein: The two balance bar groups are connected at two ends in the second direction.

19. The touch panel according to claim 17 or 18, characterized in that: The two ends of the two balancing rod groups in the second direction are connected by a connecting rod, and the connecting rod extends along the third direction.

20. The touch panel according to any one of claims 13 to 19, characterized in that: The touch panel further comprises a linkage rod disposed between the touch circuit board and the bottom plate, the linkage rod comprising a linkage rod body and two connecting sections respectively disposed at two ends of the linkage rod body in the second direction, and the trigger member is located between the two connecting sections in the second direction; Each of the two connecting sections is rotatably connected to the base plate, so that the linkage rod can rotate around a second axis relative to the base plate, and the second axis is parallel to the second direction.

21. The touch panel according to claim 20, wherein: The touch panel includes a linkage rod and a balance rod group. The linkage rod is spaced apart from the balance rod group in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

22. The touch panel according to claim 21, wherein: The two balance rods of the balance rod group are axially symmetrically arranged relative to a third axis, the linkage rod is axially symmetrically arranged relative to the third axis, and the third axis is parallel to the third direction and passes through the center of the trigger member.

23. An electronic device, characterized in that: Comprising a touch panel as described in any one of claims 1-22.

24. The electronic device according to claim 23, characterized in that: The electronic device further comprises a housing, the touch panel is mounted on the housing, and the bottom plate of the touch panel is fixedly connected to the housing.

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