Touch panel and electronic device

Abstract

The application belongs to the technical field of electronics, and particularly relates to a touchpad and an electronic device. The application aims to solve the problem of poor vibration feedback consistency of the existing touchpad. The touchpad comprises a printed circuit board and a pressure sensor assembly. The printed circuit board is provided with a vibration feedback device, and the vibration feedback device is arranged off-center relative to the printed circuit board. The pressure sensor assembly comprises a flexible connecting arm. The second end of the flexible connecting arm is fixedly connected to the printed circuit board, and the flexible connecting arm can elastically deform along the vibration feedback direction of the vibration feedback device. Thus, the vibration signal of the vibration feedback device causes the flexible connecting arm to elastically deform, and the vibration signal is transmitted to the surface of the touchpad via the flexible connecting arm, thereby improving the consistency of vibration feedback in the touchpad area, and further improving the vibration feedback effect and the pressing experience of the user. After the vibration signal is removed, the elastically deformed flexible connecting arm returns to the initial state without stress.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and more particularly to a touchpad and electronic device. Background Technology

[0002] A touchpad is an input device used in electronic devices to control the cursor on the screen. Touchpads detect minute changes in capacitance when a user's finger operates on the panel area, obtaining high-resolution finger coordinates and other touch information to precisely control the movement and clicking of the screen cursor. Pressure touchpads eliminate the physical buttons of conventional touchpads, using pressure sensors and vibration feedback devices to replace physical buttons for operations such as confirmation and menu retrieval.

[0003] In related technologies, to avoid interference between the vibration feedback device and the battery components, motherboard, etc. of electronic devices, the vibration feedback device is usually positioned off-center from the touchpad. However, a vibration feedback device positioned off-center from the touchpad results in inconsistent vibration feedback on the touchpad surface, leading to poor vibration consistency and poor vibration feedback effect. Summary of the Invention

[0004] This application provides a touchpad and electronic device to solve the technical problem of poor vibration feedback consistency caused by the vibration feedback device being offset from the center of the touchpad.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] The first aspect of this application provides a touchpad, comprising:

[0007] A printed circuit board has a first surface and a second surface opposite to each other. The first surface of the printed circuit board is provided with a touch sensing electrode, which is used to sense the touch position of the finger when the finger touches or presses the touchpad and output a corresponding touch sensing signal.

[0008] A pressure sensor assembly is disposed on the second surface of the printed circuit board. The pressure sensor assembly includes an elastic bracket and a pressure sensor. The elastic bracket includes a flexible connecting arm and a cantilever. The pressure sensor is disposed at the free end of the cantilever and is used to deform under the pressure applied when the finger presses the touchpad, and output a pressure sensing signal. The first end of the flexible connecting arm is connected to the fixed end of the cantilever, and the second end of the flexible connecting arm is fixedly connected to the printed circuit board.

[0009] A vibration feedback device is disposed on the second surface of the printed circuit board and is disposed off-center relative to the printed circuit board. The vibration feedback device is electrically connected to the touch controller and is used to provide vibration feedback in response to the magnitude of the pressure applied by the finger.

[0010] The touch controller is disposed on the second surface of the printed circuit board and electrically connected to the touch sensing electrode and the pressure sensor. It is used to receive touch sensing signals and pressure sensing signals from the touch sensing electrode and the pressure sensor and determine the touch position of the finger on the touch panel and the pressure applied by the finger.

[0011] Compared with the prior art, the touchpad provided by the first aspect of this application has the following advantages:

[0012] The touchpad provided in this application utilizes an elastic bracket to form a flexible connecting arm. The second end of the flexible connecting arm is fixedly connected to a printed circuit board (PCB). Thus, the PCB with the vibration feedback device and the elastic bracket form a single unit via the flexible connecting arm. Furthermore, the flexible connecting arm can elastically deform along the vibration feedback direction of the vibration feedback device. When the vibration feedback device provides feedback, it generates a vibration signal along the feedback direction. This vibration signal causes the flexible connecting arm to elastically deform and is transmitted to the touchpad surface, thereby improving the consistency of vibration feedback within the touchpad area and enhancing the vibration feedback effect, thus improving the user's pressing experience. After the vibration signal is removed, the flexible connecting arm elastically returns to its initial state without force.

[0013] As an improvement to the touchpad described in this application, the angle between the long side of the flexible connecting arm and the vibration feedback direction of the vibration feedback device is greater than 0 degrees and less than or equal to 90 degrees.

[0014] As an improvement to the touchpad described in this application, the angle between the long side of the flexible connecting arm and the vibration feedback direction of the vibration feedback device is greater than 0 degrees and less than or equal to 90 degrees.

[0015] As an improvement to the touchpad described in this application, the vibration feedback direction of the vibration feedback device is parallel to the long side direction of the touchpad; the long side direction of the flexible connecting arm is parallel to the short side direction of the touchpad.

[0016] As an improvement of the touchpad described in this application, the flexible connecting arm includes a main body and a connecting part. The first end of the main body serves as the first end of the flexible connecting arm and is connected to the fixed end of the cantilever. The second end of the main body is connected to the connecting part, and the connecting part serves as the second end of the flexible connecting arm and is fixedly connected to the printed circuit board.

[0017] As an improvement to the touchpad described in this application, the ratio of the length of the main body to the width of the main body is greater than 5:1.

[0018] As an improvement to the touchpad described in this application, the width of the main body is greater than or equal to 1.5 mm.

[0019] As an improvement of the touch panel described in this application, the printed circuit board is provided with a first fixing part, the first fixing part is provided with a first mounting hole; the connecting part is provided with a first fixing hole; the touch panel also includes a fastener, the fastener passes through the first fixing hole and is connected to the first mounting hole.

[0020] As an improvement to the touchpad described in this application, the fastener is a screw, and the first mounting hole is a threaded hole.

[0021] As an improvement to the touch panel described in this application, the first fixing part is a nut mounted on the printed circuit board, and the nut forms the threaded hole.

[0022] As an improvement of the touch panel described in this application, the touch panel further includes a reinforcing plate, which is bonded to the second surface of the printed circuit board. The pressure sensor assembly is disposed on the second surface of the printed circuit board through the reinforcing plate. The reinforcing plate is provided with a first clearance hole for avoiding the vibration feedback device and the touch controller.

[0023] As an improvement to the touchpad described in this application, the touchpad further includes a fastener, the connecting portion having a first fixing hole; the reinforcing plate having a first fixing portion, the first fixing portion of the reinforcing plate having a first mounting hole, the fastener passing through the first fixing hole and connecting to the first mounting hole of the reinforcing plate; or, the printed circuit board having a first fixing portion, the first fixing portion of the printed circuit board having a first mounting hole, the reinforcing plate having a through hole, the fastener passing through the through hole and the first fixing hole and connecting to the first mounting hole of the printed circuit board.

[0024] As an improvement to the touchpad described in this application, the reinforcing plate is bonded to the printed circuit board using a first adhesive, wherein the dynamic shear force of the first adhesive is greater than 7 MPa / 300 mm. 2 .

[0025] As an improvement to the touchpad described in this application, the elastic bracket further includes a bracket body, the bracket body having two opposing ends, each end of the bracket body being provided with a cantilever, and the free end of each cantilever being equipped with the pressure sensor; the first end of the flexible connecting arm is connected to one of the cantilever, or the first end of the flexible connecting arm is connected to the middle section of the bracket body.

[0026] As an improvement to the touchpad described in this application, the number of pressure sensor assemblies is two, and the two pressure sensor assemblies are symmetrical about the center of the printed circuit board.

[0027] As an improvement to the touchpad described in this application, a cover plate is also included. The cover plate is bonded to the first surface of the printed circuit board by a second adhesive, wherein the dynamic shear force of the second adhesive is greater than 7 MPa / 300 mm. 2 .

[0028] As an improvement to the touchpad described in this application, the touchpad further includes a near-field communication (NFC) component, which is mounted at the center of the printed circuit board.

[0029] A second aspect of this application provides an electronic device comprising: a housing;

[0030] The touchpad described in the first aspect has an elastic support fixed to the housing.

[0031] The electronic device provided in the second aspect of this application has the same advantages as the touchpad described in the first aspect because it includes the touchpad described in the first aspect. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are only a part of the embodiments of this application. These drawings and text descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the touch panel provided in Embodiment 1 of this application;

[0034] Figure 2 An exploded view of the touchpad provided in Embodiment 1 of this application;

[0035] Figure 3 for Figure 2 Enlarged schematic diagram of region P in the middle;

[0036] Figure 4 This is a top view of the pressure sensor assembly of the touchpad provided in Embodiment 1 of this application;

[0037] Figure 5A bottom view of the pressure sensor assembly of the touchpad provided in Embodiment 1 of this application;

[0038] Figure 6 This is an exploded view of the touchpad provided in Embodiment 2 of this application;

[0039] Figure 7 This is a top view of the pressure sensor assembly of the touchpad provided in Embodiment 3 of this application;

[0040] Figure 8 A bottom view of the pressure sensor assembly of the touchpad provided in Embodiment 3 of this application;

[0041] Figure 9 This is a top view of the pressure sensor assembly of the touchpad provided in Embodiment 4 of this application;

[0042] Figure 10 This is a bottom view of the pressure sensor assembly of the touchpad provided in Embodiment 4 of this application;

[0043] Figure 11 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0044] Explanation of reference numerals in the attached figures

[0045] 1000: Touch panel;

[0046] 100: Printed circuit board; 101: First surface; 102: Second surface; 110: Vibration feedback device; 120: Touch controller; 130: First fixing part; 131: First mounting hole; 132: Fastener; 140: First connector; 150: Second connector; 160: NFC component;

[0047] 200: Pressure sensor assembly; 210: Elastic bracket; 211: Flexible connecting arm; 2111: Main body; 2112: Connecting part; 2113: First fixing hole; 2114: Arc edge; 212: Cantilever; 2121, 2121a, 2121b: Fixing end; 213: Bracket body; 214: Support arm; 220: Pressure sensor; 230: Connecting cable; 231: Cable pin; 240: Elastic element; 250: Second fixing part; 251: Second threaded hole;

[0048] 300: Reinforcing plate; 301: First clearance hole; 302: Second clearance hole; 303: Through hole; 310: Protrusion;

[0049] 410: First adhesive; 420: Second adhesive;

[0050] 500: Cover plate;

[0051] 600: Electronic device; 610: Housing. Detailed Implementation

[0052] Pressure-sensitive touchpads eliminate the physical buttons of conventional touchpads, replacing them with pressure sensors and vibration feedback devices to perform operations such as confirmation and menu access. The vibration feedback device, such as a linear motor, needs to be installed in the center of the touchpad to ensure a consistent vibration experience across all areas. However, during the assembly of the device, battery components and the motherboard are located beneath the touchpad. The battery cells bulge during charging and discharging, and given the limited internal space, it's crucial to prevent the vibration feedback device's housing from interfering with and puncturing the battery cells, potentially causing a safety hazard. Typically, vibration feedback devices are positioned off-center from the touchpad. However, this off-center placement results in inconsistent vibration feedback across the touchpad surface, leading to poor vibration uniformity and a less effective vibration feedback experience.

[0053] In view of this, the touchpad provided in the embodiments of this application can significantly improve the vibration consistency effect. Embodiments of this application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0054] Example 1

[0055] Figure 1 This is a schematic diagram of the structure of the touch panel provided in Embodiment 1 of this application; Figure 2 An exploded view of the touchpad provided in Embodiment 1 of this application; Figure 3 for Figure 2 Enlarged schematic diagram of region P in the middle; Figure 4 This is a top view of the pressure sensor assembly of the touchpad provided in Embodiment 1 of this application; Figure 5 This is a bottom view of the pressure sensor assembly of the touchpad provided in Embodiment 1 of this application.

[0056] Combination Figures 1 to 2 This application provides a touch panel, which includes: a cover plate 500, a touch panel 1000, a vibration feedback device 110, a touch controller 120, and a pressure sensor assembly 200.

[0057] In this embodiment, the cover plate 500 serves as both an appearance component and a protective element. The cover plate 500 is a generally planar rigid material sheet, specifically a non-conductive rigid object such as glass, PC sheet, ceramic sheet, or polyester film (Mylar). The top surface of the cover plate 500 can be smooth or have a rough texture to ensure the touchpad's appearance conforms to the product's aesthetic design. The top surface of the cover plate 500 is configured to contact one or more user objects, such as fingers or styluses, when the touchpad is operated. Therefore, the user can provide input by clicking, sliding, pressing, or otherwise applying force to the top surface of the cover plate 500 using one or more of these user objects. The top surface of the cover plate 500, as referred to herein, is the surface of the cover plate 500 facing away from the touch panel 1000.

[0058] A touch panel 1000 is disposed below a cover plate 500. The touch panel 1000 includes a printed circuit board 100, which has opposing first and second surfaces. The first surface 101 of the printed circuit board 100 is provided with touch detection electrodes. These electrodes sense the touch position of a finger when the finger touches or presses the touch panel and output a corresponding touch sensing signal. The printed circuit board 100 is bonded to the cover plate 500. Specifically, the first surface 101 of the printed circuit board 100 is bonded to the cover plate 500 using a second adhesive 420. The dynamic shear force of the second adhesive 420 is greater than 7 MPa / 300 mm. 2 This ensures the reliability of the bonding between the cover plate 500 and the first surface 101 of the printed circuit board 100, prevents the cover plate 500 from moving relative to the printed circuit board 100, and thus makes the cover plate 500 and the printed circuit board 100 form a rigid whole, which is conducive to improving the consistency of vibration feedback.

[0059] A pressure sensor assembly 200 is disposed on the second surface of the printed circuit board 100. There are two specific implementation methods: one is that the pressure sensor assembly 200 is directly disposed on the second surface of the printed circuit board 100; the other is that the pressure sensor assembly 200 is indirectly disposed on the second surface of the printed circuit board 100 via a reinforcing plate 300. This embodiment illustrates the second implementation method. The touch panel 1000 may further include a reinforcing plate 300, which has opposing first and second surfaces 102, wherein the surface of the reinforcing plate 300 facing away from the printed circuit board 100 is the second surface 102. The pressure sensor assembly 200 is disposed on the second surface 102 of the reinforcing plate 300. The first surface of the reinforcing plate 300 is bonded to the second surface of the printed circuit board 100. The reinforcing plate 300 is bonded to the printed circuit board 100 using a first adhesive 410 to increase the rigidity of the touch panel and reduce deformation and collapse when the user presses the touch panel. The dynamic shear strength of the first adhesive 410 is greater than 7 MPa / 300 mm. 2This ensures the reliability of the bonding between the reinforcing plate 300 and the printed circuit board 100, and prevents the reinforcing plate 300 from moving relative to the printed circuit board 100.

[0060] Both the vibration feedback device 110 and the touch controller 120 are mounted and fixed on the second surface of the printed circuit board 100. The reinforcing plate 300 has a first clearance hole 301 for avoiding the vibration feedback device 110 and the touch controller 120, so that both are located on the second surface of the printed circuit board 100. The touch controller 120 is electrically connected to the touch sensing electrodes and provides a drive signal to the touch sensing electrodes to enable capacitive touch detection. The touch controller 120 determines the position information of the finger on the touchpad based on the touch sensing signal output by the touch sensing electrodes. The touch controller 120 is also electrically connected to the vibration feedback device 110 and responds to the pressure applied to the touchpad, driving the vibration feedback device 110 to provide vibration feedback.

[0061] The vibration feedback device 110 is offset from the center of the printed circuit board 100. It can be understood that the center of the printed circuit board 100 refers to the intersection of the first center line O1 and the second center line O2 of the printed circuit board 100, as shown in the following figure. Figure 1 The first center line O1 extends along the long side of the rectangular printed circuit board 100 (corresponding to the X-axis direction in the figure), and the printed circuit board 100 is symmetrical about the first center line O1; the second center line O2 extends along the short side of the rectangular printed circuit board 100 (corresponding to the Y-axis direction in the figure), and the printed circuit board 100 is symmetrical about the second center line O2.

[0062] The vibration feedback device 110 can be positioned offset from the center of the printed circuit board 100 in various ways, such as... Figure 1 As shown, the vibration feedback device 110 is installed in the lower half of the printed circuit board 100. Specifically, the vibration feedback device 110 is located on the second center line O2 and below the first center line O1. Of course, this is not a limitation on the location of the vibration feedback device 110. For example, the vibration feedback device 110 can also be located in the upper half of the printed circuit board 100.

[0063] Since the vibration feedback device 110 is offset from the center of the printed circuit board 100, the touchpad in this embodiment also includes a Near Field Communication (NFC) component. The NFC component 160 is mounted at the center of the printed circuit board 100 and is used to enable near field communication between the touchpad and other electronic devices. The NFC component 160 is located at the center of both the long side and the short side of the printed circuit board 100.

[0064] The NFC component 160 enables near-field communication (NFC) functionality. It includes a ferrite core and a coil. The ferrite core focuses the magnetic flux, increasing the sensing distance by strengthening the magnetic field. The coil generates the NFC signal. The coil of the NFC component 160 can be embedded within the printed circuit board 100, or it can be disposed on the surface of the printed circuit board 100, for example, on a second surface. Similarly, the ferrite core of the NFC component 160 can be mounted on the surface of the printed circuit board 100, for example, on a second surface.

[0065] The reinforcing plate 300 at this time is provided with a first clearance hole 301 to avoid electrical components disposed on the printed circuit board 100, such as the NFC component 160, the vibration feedback device 110, the touch controller 120, and the first connector 140. The shape of the first clearance hole 301 is not limited to the rectangular hole shown in the figure. Furthermore, the number of first clearance holes 301 is not limited to the one shown in the figure. For example, multiple first clearance holes 301 are provided, one for avoiding the NFC component 160, another for avoiding the vibration feedback device 110, etc.

[0066] Continue to refer to Figure 1 A pressure sensor assembly 200 is provided on each side of the vibration feedback device 110. The pressure sensor assembly 200 includes an elastic bracket 210 and a pressure sensor 220. The elastic bracket 210 includes a flexible connecting arm 211. The pressure sensor 220 is located at the free end of the cantilever 212 and is used to deform under the pressure applied when a finger presses the touch panel, and output a pressure sensing signal. The first end of the flexible connecting arm 211 is connected to the fixed end of the cantilever 212, and the second end of the flexible connecting arm 211 is fixedly connected to the printed circuit board 100. The embodiment of this application improves the consistency of vibration feedback in the touch panel area through the structural design of the pressure sensor assembly 200.

[0067] The pressure sensor assembly 200 extends along the short side of the printed circuit board 100 (corresponding to the Y-axis direction in the figure) and is disposed at the edge of the short side of the printed circuit board 100. Each pressure sensor assembly 200 includes two pressure sensors 220, thus the touchpad has four pressure sensors 220, and the four pressure sensors 220 are distributed at the four vertices of the rectangular printed circuit board 100, which helps to increase the structural stability of the touchpad and improve the uniformity of pressure detection.

[0068] In some implementations, the two pressure sensor assemblies 200 are symmetrical about the center of the printed circuit board 100. For example, the two pressure sensor assemblies 200 are axially symmetrical about the center of the printed circuit board 100, such as about a second center line O2 of the printed circuit board 100. Alternatively, the two pressure sensor assemblies 200 are symmetrical about the center of the printed circuit board 100 by rotating 180 degrees. This arrangement ensures that one flexible connecting arm 211 is fixed to the lower half of the printed circuit board 100, as shown in the figures, with the left flexible connecting arm 211 fixed to the lower half of the first center line O1; and the other flexible connecting arm 211 is fixed to the upper half of the printed circuit board 100, as shown in the figures, with the right flexible connecting arm 211 fixed to the upper half of the first center line O1. This configuration helps to further improve the overall integrity of the touchpad, thereby facilitating the transmission of the vibration force of the vibration feedback device 110 to the touchpad surface through the flexible connecting arm 211, and further improving the consistency of vibration feedback.

[0069] Combination Figure 2 and Figure 3 The pressure sensor assembly 200 in this application embodiment includes an elastic bracket 210 and a pressure sensor 220. The elastic bracket 210 supports the pressure sensor 220 and causes the pressure sensor 220 to undergo elastic deformation together when the touch panel is subjected to pressure, thereby enabling the pressure sensor 220 to detect the pressure on the touch panel.

[0070] The pressure sensor 220 is used to deform when a finger presses the touchpad. The pressure sensor 220 outputs a corresponding pressure sensing signal. The pressure sensor 220 is electrically connected to the touch controller 120 to transmit the pressure sensing signal to the touch controller 120 so that the touch controller 120 can determine the amount of pressure applied by the finger based on the pressure sensing signal and drive the vibration feedback device 110 to provide vibration feedback based on the amount of pressure.

[0071] It should be noted that, in specific embodiments, the touch controller 120 may be a touch chip that integrates pressure detection and touch position detection, or it may include two separately configured pressure detection chips for detecting pressure and touch position chips for detecting touch position.

[0072] The pressure sensor 220 in this embodiment is, for example, a piezoresistive pressure sensor, which has a simple structure and high sensitivity. The piezoresistive pressure sensor includes four variable resistors, which are interconnected to form a Wheatstone bridge detection circuit. This detection circuit converts resistance changes into corresponding electrical signals (voltage or current) for output, thereby completing the process of converting pressure into an electrical signal.

[0073] The touchpad provided in this application embodiment includes a printed circuit board 100 and an elastic support 210. A vibration feedback device 110 is disposed on the printed circuit board 100 at an off-center position. The elastic support 210 includes a flexible connecting arm 211. The second end of the flexible connecting arm 211 is fixedly connected to the printed circuit board 100, and the flexible connecting arm 211 can elastically deform along the vibration feedback direction of the vibration feedback device 110. When the vibration feedback device 110 vibrates, the vibration force causes the flexible connecting arm 211 to deform and is transmitted to other areas of the printed circuit board 100 through the flexible connecting arm 211, thereby causing the touchpad to vibrate as a whole and reducing the vibration force deviation in the touchpad area, thus improving the consistency of vibration feedback.

[0074] Continue to refer to Figure 2 and Figure 3 The elastic support 210 in this embodiment includes a flexible connecting arm 211 and a cantilever 212. The cantilever 212 has a fixed end and a free end. The fixed end of the cantilever 212 is fixed to the housing of the electronic device by screws and is fixed relative to the touchpad when under pressure, hence it is called the fixed end. The free end of the cantilever 212 is suspended relative to the housing of the electronic device and elastically deforms relative to the touchpad when under pressure, hence it is called the free end. A pressure sensor 220 is disposed at the free end of the cantilever 212, and the free end of the cantilever 212 is elastically connected to the first surface of the reinforcing plate 300. For example, an elastic element 240 is bonded to the free end of the cantilever 212 to elastically support the touchpad. The elastic element 240 is close to the free end of the cantilever 212, and the pressure sensor 220 is closer to the fixed end of the cantilever 212 than the elastic element 240. The elastic element 240 can be a silicone pad.

[0075] Thus, when the touchpad is subjected to pressure, the pressure is transmitted to the cantilever 212 through the elastic element 240 on the cantilever 212, causing the cantilever 212 to undergo elastic deformation, which causes the pressure sensor 220 attached to the cantilever 212 to deform and detect the pressure on the cantilever 212.

[0076] The flexible connecting arm 211 has a first end and a second end. The first end of the flexible connecting arm 211 is connected to the cantilever 212. In this embodiment, the first end of the flexible connecting arm 211 is directly connected to the fixed end of the cantilever 212. The second end of the flexible connecting arm 211 is fixedly connected to the reinforcing plate 300. Thus, the printed circuit board 100 and the elastic support 210 are formed as a whole through the flexible connecting arm 211.

[0077] Furthermore, the flexible connecting arm 211 can elastically deform along the vibration feedback direction of the vibration feedback device 110. Thus, when the touch controller 120 drives the vibration feedback device 110 to provide vibration feedback, the vibration feedback device 110 vibrates along this direction, causing the flexible connecting arm 211 to elastically deform. This deformation is transmitted to the entire area of ​​the touchpad via the flexible connecting arm 211, thereby improving the consistency of vibration feedback within the touchpad area and thus enhancing the vibration feedback effect and user experience. After the vibration is removed, the flexible connecting arm 211 elastically deforms back to its initial unloaded state.

[0078] In this embodiment, the long side of the flexible connecting arm 211 has an angle with the vibration feedback direction of the vibration feedback device 110. The angle is greater than zero degrees and less than or equal to 90 degrees. With this setting, the component force of the flexible connecting arm 211 along the vibration direction will deform, thereby driving the entire touch panel to vibrate and provide feedback.

[0079] When the angle between the long side of the flexible connecting arm 211 and the vibration feedback direction of the vibration feedback device 110 is 90 degrees, the flexible connecting arm 211 can generate elastic deformation along the vibration feedback direction of the vibration feedback device 110 under the action of vibration force, thereby driving the touch panel to vibrate as a whole, reducing the fluctuation range of vibration feedback force in the touch panel area, and further improving the consistency of vibration feedback in the touch panel area.

[0080] Combination Figure 2 The vibration feedback direction of the vibration feedback device 110 is parallel to the long side of the touchpad, that is, the vibration feedback direction of the vibration feedback device 110 is parallel to the horizontal X-axis direction. For example, the vibration feedback device 110 can be an X-axis linear motor. The flexible connecting arm 211 is an elastic sheet structure parallel to the surface of the printed circuit board 100, and the long side of the flexible connecting arm 211 is parallel to the short side of the touchpad. With this configuration, the flexible connecting arm 211 can deform in a plane parallel to the surface of the printed circuit board 100. Since the long side of the flexible connecting arm 211 is perpendicular to the vibration feedback direction of the vibration feedback device 110, the flexible connecting arm 211 can elastically deform along the vibration feedback direction of the vibration feedback device 110.

[0081] In one embodiment where the second end of the flexible connecting arm 211 is fixedly connected to the reinforcing plate 300, the flexible connecting arm 211 and the reinforcing plate 300 are fixedly connected by fasteners. (Continue to refer to...) Figure 2 and Figure 3 The reinforcing plate 300 is provided with a first fixing part 130, and the first fixing part 130 is provided with a first mounting hole 131; the second end of the flexible connecting arm 211 is provided with a first fixing hole 2113; the touch panel of this embodiment also includes a fastener 132, which passes through the first fixing hole 2113 and connects to the first mounting hole 131, thereby fixing the second end of the flexible connecting arm 211 to the reinforcing plate 300, so that the printed circuit board 100 and the elastic bracket 210 form a whole through the flexible connecting arm 211, which is conducive to transmitting vibration signals to the touch panel 1000 and improving the consistency of vibration feedback.

[0082] For example, fastener 132 is a screw, and the first mounting hole 131 is a threaded hole. The screw passes through the first fixing hole 2113 and is threaded into the first mounting hole 131, making the connection simple and reliable. Of course, fastener 132 can also be other structures, such as bolts.

[0083] The first fixing part 130 is a nut installed on the reinforcing plate 300, and the nut has a threaded hole. The nut can be welded to the reinforcing plate 300 using high-temperature melting flux, or the end of the nut can be thickened to form a nail head, or the nut can be riveted to the reinforcing plate 300. To prevent the reinforcing plate 300 from deforming when installing the nut, a protrusion 310 is formed in a part of the reinforcing plate 300 protruding towards the elastic bracket 210. The protrusion 310 is provided with a through hole, and the nut is welded or riveted into the through hole of the protrusion 310.

[0084] The following is combined with Figure 4 and Figure 5 This paper describes in detail the structure of the flexible connecting arm 211 and its connection relationship with the cantilever 212 in the embodiments of this application.

[0085] Combination Figure 4The flexible connecting arm 211 includes a main body 2111 and a connecting part 2112. The first end of the main body 2111 serves as the first end of the flexible connecting arm 211 and is connected to the fixed end of the cantilever 212, which is fixed to the housing of the electronic device. The second end of the main body 2111 is connected to the connecting part 2112, which serves as the second end of the flexible connecting arm 211 and is fixedly connected to a reinforcing plate 300. A first fixing hole 2113, which is fixedly connected to the reinforcing plate 300, is provided on the connecting part 2112. The two ends of the flexible connecting arm 211 are respectively fixed to the touch panel 1000 and the housing of the electronic device, which helps improve the consistency of the touch panel. By reusing the fixed end of the cantilever 212 to fix the flexible connecting arm 211 to the housing of the electronic device, the structure is simple and easy to manufacture.

[0086] like Figure 4 and Figure 5 The length of the main body 2111 is its dimension along its extending direction (corresponding to the Y-axis direction in the figure), and the width of the main body 2111 is its dimension within the second surface 102 along a first direction (corresponding to the X-axis direction in the figure), the first direction being perpendicular to the extending direction of the main body 2111. The width of the connecting portion 2112, i.e., its dimension along the X-axis direction, is greater than the width of the main body 2111. This arrangement ensures both a smaller main body 2111 width, facilitating elastic deformation, and a wider connecting portion 2112, ensuring connection stability. In this embodiment, the width of the main body 2111 along the Y-axis direction is the same everywhere. Figure 4 To avoid stress concentration, the end of the connecting part 2112 connected to the main body 2111 is provided with an arc-shaped edge 2114 as a transition connecting edge. The part of the support body 213 of the elastic bracket 210 connected to the main body 2111 is provided with an arc-shaped edge 2114 as a transition connecting edge. Thus, the part between the two arc-shaped edges 2114 is also part of the main body 2111.

[0087] Combination Figure 5 The ratio of the length L of the main body 2111 to the width W of the main body 2111 is greater than 5:1. For example, the ratio of the length L of the main body 2111 to the width W is greater than 10:1. This setting is beneficial to the elastic deformation of the flexible connecting arm 211 and further improves the vibration consistency of the touch panel.

[0088] The width W of the main body 2111 is greater than or equal to 1.5mm. For example, the width W of the main body 2111 is 3mm to avoid the main body 2111 being too small and easily broken.

[0089] The elastic support 210 of this embodiment further includes a support body 213, which has two opposing ends, each end of which is provided with a cantilever 212. The fixed end of each cantilever 212 is connected to the support body 213, and a pressure sensor 220 is installed at the free end of each cantilever 212. (See attached...) Figure 4 In the elastic support 210 structure shown, the elastic support 210 has two cantilever arms 212, and the extension direction of the cantilever arms 212 (corresponding to the Y-axis direction in the figure) is parallel to the long side direction of the support body 213 (corresponding to the Y-axis direction in the figure). In this embodiment, the first end of the flexible connecting arm 211 is connected to the fixed end of one of the cantilever arms 212, so that the first end of the flexible connecting arm 211 is fixedly connected to the housing of the electronic device. The second end of the flexible connecting arm 211 extends toward the other cantilever arm 212, and the second end is fixed to the touch panel 1000. The connection of the first end of the flexible connecting arm 211 to one of the cantilever arms 212 provides more space for the extension of the flexible connecting arm 211.

[0090] Combination Figure 5 The elastic bracket 210 is provided with a second fixing part 250, which serves as the fixing end of the cantilever 212 and is also used to mount the elastic bracket 210 onto the electronic device housing. Specifically, the second fixing part 250 may include a second threaded hole 251, which is fixedly connected to the electronic device by screws, thereby mounting the pressure sensor assembly 200 onto the electronic device.

[0091] The elastic bracket 210 in this embodiment is a sheet-like structure. Directly machining the second fixing part 250 onto the elastic bracket 210 is not only costly but also inefficient. Therefore, in this embodiment, the second fixing part 250 is a nut mounted on the elastic bracket 210, with the nut forming a second threaded hole 251. This design not only increases the length of the second threaded hole 251, thereby improving the reliability and stability of the pressure sensor assembly 200 installation, but also does not affect the machining efficiency of the sheet-like elastic bracket 210, thus reducing costs. The nut can be riveted to the elastic bracket 210 or welded to the elastic bracket 210, ensuring the stability of the connection between the nut and the elastic bracket 210.

[0092] In this embodiment of the application, the fixed ends of the two cantilever 212 of the elastic bracket 210 are respectively provided with at least one second fixing part 250, which can not only fix the elastic bracket 210 to the electronic device, but also make each cantilever 212 elastically deform relative to the touch panel, so that the pressure sensor 220 on the cantilever 212 can detect the pressure on the touch panel.

[0093] Of course, the fixed end of the cantilever 212 can be provided with multiple second fixing parts 250, which is beneficial for fixing the fixed end of the cantilever 212 and deforming the free end of the cantilever 212, and for improving the stability of the pressure sensor assembly 200 installed on the electronic device.

[0094] Continue to refer to Figure 5 The support body 213 is elongated, with its two ends connected to the fixed ends 2121 of the cantilever 212. Specifically, each fixed end 2121 of the two cantilever 212 includes two screws. One end of the support body 213 is connected to the screw of one cantilever 212, one end of the flexible connecting arm 211 is connected to the other screw of one cantilever 212, and the other end of the support body 213 is connected to the screw of the other cantilever 212. The flexible connecting arm 211 is parallel to the support body 213 and spaced apart from it, facilitating deformation of the flexible connecting arm 211 along the X-axis. Each fixed end 2121 is provided with two second fixing parts 250, and the two second fixing parts 250 on the same fixed end 2121 are arranged at intervals along the X-axis.

[0095] It should be noted that one of the second fixing parts 250 provided on each fixed end 2121 is directly opposite to the main body 213 of the bracket along the Y-axis. This arrangement helps to ensure the fixation of the fixed end 2121 of the cantilever 212 and the deformation of the free end of the cantilever 212. The other second fixing part 250 of the fixed end 2121 connected to the first end of the flexible connecting arm 211 is directly opposite to the flexible connecting arm 211 along the Y-axis. The flexible connecting arm 211 reuses the fixed end of the cantilever 212. This arrangement can not only ensure the stability of the fixed connection between the flexible connecting arm 211 and the fixed end 2121, but also help to ensure the fixation of the first end of the flexible connecting arm 211 and the elastic deformation of the main body 2111 of the flexible connecting arm 211.

[0096] Continue to refer to Figure 4 The pressure sensor assembly 200 in this embodiment further includes a connecting cable 230, which is electrically connected to each pressure sensor 220 in the pressure sensor assembly 200. This embodiment facilitates the transmission of pressure signals from all pressure sensors 220 by electrically connecting all pressure sensors 220 using the connecting cable 230. The connecting cable 230 can be a flexible circuit board, i.e., metal traces are arranged on a flexible substrate to form a flexible connecting cable 230, which is easy to adapt to the elastic deformation of the elastic support 210 and is not easily damaged.

[0097] like Figure 4 As shown, the connecting cable 230 is attached to the elastic bracket 210. This arrangement ensures the stability of the electrical connection between the two ends of the connecting cable 230 and the pressure sensor 220.

[0098] The pressure sensor assembly 200 in this embodiment further includes a ribbon cable pin 231. The ribbon cable 230 is electrically connected to the pressure sensor 220 and the ribbon cable pin 231 respectively. The ribbon cable pin 231 is electrically connected to the printed circuit board 100 to transmit the pressure detected by all pressure sensors 220 to the touch controller 120, so that the touch controller 120 calculates the pressure value of the touch panel based on the pressure detected by each pressure sensor 220, and reports to the system of the electronic device when the pressure value reaches a certain threshold to realize the functions of the left and right mouse buttons.

[0099] Continue to refer to Figure 4 The flexible connecting arm 211 and the ribbon cable pin 231 are located on both sides of the bracket body 213, which helps to improve the compactness of the pressure sensor assembly 200 structure.

[0100] Combined again Figure 1 and Figure 2 The flexible connecting arm 211 is located near the edge of the printed circuit board 100. At this time, the ribbon cable pin 231 is located on the side of the support body 213 facing the center of the printed circuit board 100. This arrangement helps to improve the layout efficiency of the printed circuit board 100. Of course, the flexible connecting arm 211 can also be located on the side of the support body 213 facing the center of the printed circuit board 100.

[0101] A second connector 150 is provided on the surface of the printed circuit board 100 facing the reinforcing plate 300. The ribbon cable pin 231 is electrically connected to the second connector 150, thereby achieving an electrical connection between the ribbon cable pin 231 and the printed circuit board 100. Furthermore, a second clearance hole 302 is provided on the reinforcing plate 300 to prevent the electrical connection between the ribbon cable pin 231 and the second connector 150. (See attached...) Figure 4 In the middle, the third clearance hole 303 is a rectangular hole. Of course, this is not a limitation on the shape of the third clearance hole 303. For example, the third clearance hole 303 can also be a circular hole, an elliptical hole, etc.

[0102] A first connector 140 is also provided on the surface of the printed circuit board 100 facing the reinforcing plate 300. The first connector 140 is electrically connected to the main controller of the electronic device through wires to realize communication between the touch panel and the main controller of the electronic device.

[0103] Example 2

[0104] Figure 6 This is an exploded view of the touchpad provided in Embodiment 2 of this application. (Combined with...) Figure 6 The touch panel provided in this embodiment is a replacement for the touch panel in Embodiment 1. The component that is fixedly connected to the second end of the flexible connecting arm 211 in this embodiment is different from that in Embodiment 1. Other structures, functions and effects can be referred to Embodiment 1, and will not be repeated here.

[0105] In Embodiment 1, the first fixing part 130 is disposed on the reinforcing plate 300 so that the connecting part 2112 of the flexible connecting arm 211 is fixedly connected to the reinforcing plate 300; while in this embodiment, the first fixing part 130 is disposed on the printed circuit board 100, and the connecting part 2112 of the flexible connecting arm 211 is fixedly connected to the printed circuit board 100.

[0106] When the first fixing part 130 is a nut, the nut can be mounted on the surface of the printed circuit board 100 facing the reinforcing plate 300 using surface mount technology (SMT). The reinforcing plate 300 is provided with a through hole 303. The fastener 132 passes through the through hole 303 and the first fixing hole 2113 and connects to the first mounting hole 131, thereby fixing the connecting part 2112 at the second end of the flexible connecting arm 211 to the printed circuit board 100.

[0107] Example 3

[0108] Figure 7 This is a top view of the pressure sensor assembly of the touchpad provided in Embodiment 3 of this application; Figure 8 This is a bottom view of the pressure sensor assembly of the touchpad provided in Embodiment 3 of this application. (In conjunction with...) Figure 7 and Figure 8 The pressure sensor assembly provided in this application embodiment is a replacement for the pressure sensor assembly in Embodiment 1. The shape of the elastic bracket 210 in this embodiment is different from that in Embodiment 1. Other structures, functions and effects can be referred to Embodiment 1, and will not be repeated here.

[0109] In this embodiment, the width of the connecting portion 2112 of the flexible connecting arm 211, that is, the dimension of the connecting portion 2112 along the X-axis, is equal to the width of the main body portion 2111, which facilitates the processing of the flexible connecting arm 211.

[0110] In this embodiment, the cantilever 212 extends along the X-axis, and the extension direction of the cantilever 212 is perpendicular to the extension direction of the support body 213. The cantilever 212 is located on the right side of the support body 213 (corresponding to the side in the positive X-axis direction in the figure), and the flexible connecting arm 211 is located on the left side of the support body 213 (corresponding to the side in the negative X-axis direction in the figure).

[0111] In this embodiment, the two fixed ends of the cantilever 212 have different extension lengths along the X-axis. For ease of description, combined with... Figure 8The first end of the support body 213 (corresponding to the end in the positive Y-axis direction in the figure) is fixed end 2121a, and the second end of the support body 213 (corresponding to the end in the negative Y-axis direction in the figure) is fixed end 2121b. The length of fixed end 2121a is less than the length of fixed end 2121b. The right side of fixed end 2121a (the side facing the positive X-axis direction) is connected to one of the cantilever 212, and the left side of fixed end 2121a (the side facing the negative X-axis direction) is flush with the left side of the support body 213. The right side of fixed end 2121b is connected to the other cantilever 212, and the left side of fixed end 2132b protrudes from the left side of the support body 213.

[0112] A second fixing part 250 is provided on the fixed end 2121a, and two second fixing parts 250 are provided on the fixed end 2121b. The two second fixing parts 250 are arranged at intervals along the X-axis direction. One of the second fixing parts 250 is opposite to the flexible connecting arm 211, so that the first end of the flexible connecting arm 211 reuses the fixed end 2132b. This structure is simple and easy to manufacture. The second end of the flexible connecting arm 211 extends straight toward the fixed end 2121a without bending. The extension length of the flexible connecting arm 211 is greater than the length of the bracket body 213, which can further improve the vibration consistency of the touch panel.

[0113] Example 4

[0114] Figure 9 This is a top view of the pressure sensor assembly of the touchpad provided in Embodiment 4 of this application; Figure 10 This is a bottom view of the pressure sensor assembly of the touchpad provided in Embodiment 4 of this application. (In conjunction with...) Figure 9 and Figure 10 The pressure sensor assembly provided in this application embodiment is a replacement for the pressure sensor assembly in Embodiment 1. The shape of the elastic bracket 210 in this embodiment is different from that in Embodiment 1. Other structures, functions and effects can be referred to Embodiment 1, and will not be repeated here.

[0115] In this embodiment, the two ends of the bracket body 213 extend away from the center of the bracket body 213 to form the fixed ends 2121 of the cantilever 212. The cantilever 212 is perpendicular to the bracket body 213. In the direction shown in the figure, the bracket body 213 extends along the Y-axis, and the cantilever 212 extends along the X-axis. At least one second threaded hole 251 is provided on the fixed end 2121 of the cantilever 212. The connecting cable 230 is spaced from the bracket body 213 and is not attached to the bracket body 213. Therefore, the bracket body 213 can also be provided with a second threaded hole 251 to more stably fix the elastic bracket 210 to the housing of the electronic device.

[0116] The elastic support 210 of this embodiment also includes a support arm 214, which and the cantilever 212 are located on the same side of the support body 213. Along the Y-axis, the support arm 214 and the two cantilever 212 are spaced apart. The support arm 214 is close to one of the cantilever 212, and the side of the support arm 214 facing away from the cantilever 212 is connected to the first end of the flexible connecting arm 211. At this time, the flexible connecting arm 211 and the cantilever 212 are both located on the same side of the support body 213, and there is a gap between the flexible connecting arm 211 and the support body 213.

[0117] In this embodiment, the flexible connecting arm 211 is indirectly connected to the fixed end of the cantilever 212 through the support arm 214 and the bracket body 213, and does not directly reuse the fixed end of the cantilever 212. Of course, in order to improve the stability of the first end of the flexible connecting arm 211, a second fixing part 250 can also be provided on the support arm 214.

[0118] In this embodiment, the flexible connecting arm 211, the connecting cable 230, and the cable pins 231 are all located on the same side of the support body 213. The flexible connecting arm 211 and the connecting cable 230 are spaced apart to avoid mutual contact and friction. In this embodiment, the connecting cable 230 is spaced apart from the support body 213. At this time, the connecting cable 230 can be attached to the reinforcing plate to prevent the connecting cable 230 from shaking and affecting the stability of the electrical connection with the pressure sensor.

[0119] Example 5

[0120] Figure 11 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0121] Reference Figure 11 This application provides an electronic device 600, which includes a housing 610 and a touch panel, wherein the elastic support of the touch panel is fixed on the housing 610. The structure, function and effect of the touch panel in this embodiment are the same as any of the above embodiments one to four. For details, please refer to the above embodiments one to four, which will not be repeated here.

[0122] The technical solutions of this application can be applied to various electronic devices, such as smartphones, laptops, tablets, gaming devices and other portable or mobile computing devices, as well as electronic databases, automobiles, bank ATMs and other electronic devices. However, this application does not limit these applications.

[0123] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A touchpad, characterized in that, include: A printed circuit board has a first surface and a second surface opposite to each other. The first surface of the printed circuit board is provided with a touch sensing electrode, which is used to sense the touch position of the finger when the finger touches or presses the touchpad and output a corresponding touch sensing signal. A pressure sensor assembly is disposed on the second surface of the printed circuit board. The pressure sensor assembly includes an elastic bracket and a pressure sensor. The elastic bracket includes a flexible connecting arm and a cantilever. The pressure sensor is disposed at the free end of the cantilever and is used to deform under the pressure applied when the finger presses the touchpad, and output a pressure sensing signal. The first end of the flexible connecting arm is connected to the fixed end of the cantilever, and the second end of the flexible connecting arm is fixedly connected to the printed circuit board. A vibration feedback device is disposed on the second surface of the printed circuit board and is disposed off-center relative to the printed circuit board. The vibration feedback device is electrically connected to the touch controller and is used to provide vibration feedback in response to the magnitude of the pressure applied by the finger. The touch controller is disposed on the second surface of the printed circuit board and electrically connected to the touch sensing electrode and the pressure sensor. It is used to receive touch sensing signals and pressure sensing signals from the touch sensing electrode and the pressure sensor and determine the touch position of the finger on the touch panel and the pressure applied by the finger.

2. The touchpad according to claim 1, characterized in that, The angle between the long side of the flexible connecting arm and the vibration feedback direction of the vibration feedback device is greater than 0 degrees and less than or equal to 90 degrees.

3. The touchpad according to claim 1, characterized in that, The vibration feedback direction of the vibration feedback device is parallel to the long side of the touch panel; the long side of the flexible connecting arm is parallel to the short side of the touch panel.

4. The touchpad according to claim 1, characterized in that, The flexible connecting arm includes a main body and a connecting part. The first end of the main body serves as the first end of the flexible connecting arm and is connected to the fixed end of the cantilever. The second end of the main body is connected to the connecting part, and the connecting part serves as the second end of the flexible connecting arm and is fixedly connected to the printed circuit board.

5. The touchpad according to claim 4, characterized in that, The ratio of the length of the main body to the width of the main body is greater than 5:

1.

6. The touchpad according to claim 4, characterized in that, The width of the main body is greater than or equal to 1.5 mm.

7. The touchpad according to claim 4, characterized in that, The printed circuit board is provided with a first fixing part, and the first fixing part is provided with a first mounting hole; the connecting part is provided with a first fixing hole; The touchpad also includes a fastener, which passes through the first fixing hole and connects to the first mounting hole.

8. The touchpad according to claim 7, characterized in that, The fastener is a screw, and the first mounting hole is a threaded hole.

9. The touchpad according to claim 8, characterized in that, The first fixing part is a nut installed on the printed circuit board, and the nut forms the threaded hole.

10. The touchpad according to claim 6, characterized in that, The touch panel also includes a reinforcing plate, which is bonded to the second surface of the printed circuit board, and the pressure sensor assembly is disposed on the second surface of the printed circuit board via the reinforcing plate; The reinforcing plate is provided with a first clearance hole for avoiding the vibration feedback device and the touch controller.

11. The touchpad according to claim 10, characterized in that, The touch panel also includes a fastener, and the connecting part is provided with a first fixing hole; The reinforcing plate is provided with a first fixing part, and the first fixing part of the reinforcing plate is provided with a first mounting hole. The fastener passes through the first fixing hole and connects to the first mounting hole of the reinforcing plate; or, the printed circuit board is provided with a first fixing part, and the first fixing part of the printed circuit board is provided with a first mounting hole. The reinforcing plate is provided with a through hole, and the fastener passes through the through hole and the first fixing hole and connects to the first mounting hole of the printed circuit board.

12. The touchpad according to claim 10, characterized in that, The reinforcing plate is bonded to the printed circuit board using a first adhesive, the first adhesive having a dynamic shear force greater than 7 MPa / 300 mm. 2 .

13. The touchpad according to any one of claims 1-9, characterized in that, The elastic support also includes a support body, which has two opposite ends. Each of the two ends of the support body is provided with a cantilever, and the free end of each cantilever is equipped with a pressure sensor. The first end of the flexible connecting arm is connected to one of the cantilever arms, or the first end of the flexible connecting arm is connected to the support body.

14. The touchpad according to any one of claims 1-9, characterized in that, The number of pressure sensor assemblies is two, and the two pressure sensor assemblies are symmetrical about the center of the printed circuit board.

15. The touchpad according to any one of claims 1-9, characterized in that, It also includes a cover plate, which is bonded to the first surface of the printed circuit board by a second adhesive, the second adhesive having a dynamic shear force greater than 7 MPa / 300 mm. 2 .

16. The touchpad according to any one of claims 1-9, characterized in that, The touchpad also includes an NFC (Near Field Communication) component, which is mounted at the center of the printed circuit board.

17. An electronic device, characterized in that, include: case; The touchpad according to any one of claims 1-16, wherein the elastic support of the touchpad is fixed to the housing.

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