CN115398382A

CN115398382A - Touch device, touch pad and electronic equipment

Info

Publication number: CN115398382A
Application number: CN202280003018.XA
Authority: CN
Inventors: 刘相英
Original assignee: Shenzhen Goodix Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-25
Also published as: WO2024020849A1

Abstract

The application provides a touch device, a touch pad and an electronic device, which can reduce the structural complexity and the thickness of the touch pad. The touch device is used for being arranged below a cover plate to form a touch plate, and comprises: the circuit board is connected to the lower surface of the cover plate and is provided with a pressing sensing element; the fixing bracket is arranged below the circuit board and is provided with a through hole; one end of the threaded connecting piece is connected to the circuit board through the through hole, the other end of the threaded connecting piece is limited on the lower surface of the fixing support, and a gap is formed between the fixing support and the circuit board; under the condition that the finger presses the cover plate, the circuit board drives the threaded connecting piece to move in the gap along the pressing direction, so that the pressing sensing element on the circuit board senses the pressing of the finger on the cover plate. Through this technical scheme, can only utilize basic components such as circuit board and fixed bolster to realize the pressure detection function of touch-control board, this technical scheme overall structure is simple, and thickness is thinner, and easily production and installation.

Description

Touch device, touch pad and electronic equipment

Technical Field

The present application relates to the field of electronic technology, and more particularly, to a touch device, a touch pad, and an electronic apparatus.

Background

With the development of the era, in various electronic devices, for example: touch panels are arranged in user terminal equipment such as computers, tablets and mobile phones. The touch pad can be used as an input device of an electronic device for sensing the pressing of a finger or other component of a user, and providing pressing feedback and/or instructing the electronic device where the touch pad is located to execute a corresponding function based on the pressing. In some conventional touch panels, the touch panel needs to use a dedicated mechanical structure for implementing the pressing detection, and the touch panel has a complex structure and a thick thickness, which is not favorable for popularization and use of the touch panel in the ultra-thin electronic device.

Therefore, how to reduce the structural complexity and thickness of the touch pad is an urgent technical problem to be solved.

Disclosure of Invention

The application provides a touch device, a touch pad and an electronic device, which can reduce the structural complexity and the thickness of the touch pad.

In a first aspect, a touch device is provided for being disposed under a cover plate to form a touch pad, including: the circuit board is connected to the lower surface of the cover plate and is provided with a pressing sensing element; the fixing bracket is arranged below the circuit board and is provided with a through hole; one end of the threaded connecting piece is connected to the circuit board through the through hole, the other end of the threaded connecting piece is limited on the lower surface of the fixing support, and the threaded connecting piece is used for providing a gap between the fixing support and the circuit board; under the condition that the finger presses the cover plate, the circuit board drives the threaded connecting piece to move in the gap along the pressing direction, so that the pressing sensing element on the circuit board senses the pressing of the finger on the cover plate.

Through the technical scheme of this application embodiment, can only utilize basic components such as circuit board and fixed bolster to realize the pressure detection function of touch-control board. Particularly, the circuit board and the fixed support can be connected conveniently, reliably and accurately through the threaded connection piece. In addition, the threaded connector can be fixedly connected with the circuit board and the fixing support to limit the circuit board in a static state, and can be displaced and changed along with a gap between the circuit board and the fixing support in a pressing state of a user, so that the pressing sensing element of the circuit board senses the pressing of fingers on the cover plate to realize a pressing detection function. The technical scheme has the advantages of simple overall structure, small thickness, easy production and installation, and is favorable for popularization and use of the touch pad in electronic equipment.

In some possible embodiments, the threaded connector includes a patch nut and a screw, the patch nut is attached to the surface of the circuit board, the threaded structure of the screw is connected to the patch nut through a through hole in the fixing bracket, and the screw head of the screw is limited on the lower surface of the fixing bracket.

Through the technical scheme of this embodiment, can utilize directly to set up the paster nut on the surface of circuit board, and utilize the height of paster nut to provide the clearance between circuit board and fixed bolster, this embodiment not only is convenient for process the equipment and holistic connection reliability and connection accuracy are higher.

In some possible embodiments, the screw is a captive screw, a thread structure of the captive screw is connected to the patch nut through a through hole in the fixing support, a screw head of the captive screw is limited on the lower surface of the fixing support, and a polish rod of the captive screw is located between the thread structure and the screw head for providing a gap between the patch nut and the fixing support.

Through the technical scheme of this embodiment, the screw design is the bolt screw, and this bolt screw also can realize on the one hand with the fastening cooperation of paster nut, and on the other hand, the design of polished rod can make this bolt screw can be nimble in the removal of the through-hole of fixed bolster, promotes touch device's pressure detection performance.

In some possible embodiments, the diameter of the through hole in the fixed bracket is smaller than the outer diameter of the patch nut and larger than the outer diameter of the polish rod.

Through the technical scheme of this embodiment, when the user pressed in the apron, the paster nut moved down, when the paster nut was pressed to the fixed bolster, then can not be pressed down continuously. At the moment, the patch nut can be used as a limiting part in the pressing direction, and the fixed support cannot be in contact with other devices on the circuit board, so that the situation that the devices on the circuit board are damaged by the fixed support due to overlarge pressing pressure when a user presses the cover plate can be prevented, and the overall use performance of the touch pad is influenced.

In some possible embodiments, the threaded connector is located at a first end of the circuit board, and a second end of the circuit board, opposite to the first end, is provided with a limiting member; under the condition that a finger presses the first end of the cover plate, the first end of the circuit board drives the threaded connecting piece to move in the gap along the pressing direction, and the limiting piece is used for limiting the second end of the circuit board and preventing the second end of the circuit board from moving along the direction opposite to the pressing direction.

In some possible embodiments, the fixing bracket is connected to the circuit board by at least one pair of threaded connectors, each pair of threaded connectors of the at least one pair of threaded connectors being arranged symmetrically with respect to an axis of symmetry of the circuit board, the pressure sensitive element being arranged in a central region of the circuit board.

Through the technical scheme of the embodiment, the touch pad where the touch device is located can be a touch pad pressed by the whole domain, namely, the user finger can press any position in the touch pad, and the touch pad can sense the pressing of the user finger, so that the use experience of the user on the touch pad can be greatly improved.

In some possible embodiments, the circuit board is a rectangular circuit board, and the fixing bracket is connected to the circuit board through two pairs of threaded connectors, and the two pairs of threaded connectors are disposed in four corner regions of the rectangular circuit board.

In the technical scheme of the embodiment, the four corner regions of the circuit board are connected to the fixing support through the two pairs of threaded connecting pieces, so that when fingers press the cover plate, the four corner regions of the cover plate and the circuit board are well prevented from tilting, and the pressing performance of the touch control plate where the touch control device is located is reliably guaranteed.

In some possible embodiments, the circuit board is a rectangular circuit board, the fixing bracket is connected to the circuit board through three pairs of threaded connectors, two pairs of threaded connectors of the three pairs of threaded connectors are arranged in four corner regions of the rectangular circuit board, and one pair of threaded connectors is arranged in a central region of the rectangular circuit board.

In the technical scheme of this embodiment, except that two pairs of threaded connection spare connect the four corners region of circuit board in fixed bolster, can be good prevent that the finger from pressing the apron and causing the problem of the regional perk of the four corners of apron and circuit board, can also be further through a pair of threaded connection spare with the central region of circuit board in fixed bolster, guarantee the pressing performance of user's finger in this central region department.

In some possible embodiments, the touch device further includes: the first elastic piece is arranged between the circuit board and the fixed support and used for providing elastic support between the circuit board and the fixed support.

Through the technical scheme of this embodiment, have first elastic component between circuit board and the fixed bolster, under static state, this first elastic component can play the supporting role between circuit board and fixed bolster. When the user's finger pressed in the apron, this first elastic component can promote user's the pressing and feel to promote the user and experience the use of touch-control device place touch-control board.

In some possible embodiments, the first elastic member is a first silicone pad, and the first silicone pad surrounds the periphery of the threaded connection member.

Through the technical scheme of this embodiment, with first elastic component design for first silica gel pad, this first silica gel pad easily makes and easily installs between circuit board and fixed bolster, and in addition, this first silica gel pad is around setting up around threaded connection spare, can carry on spacingly to this threaded connection spare in the horizontal direction, prevents that threaded connection spare from rocking in the horizontal direction, promotes the user and experiences pressing of this touch-control board.

In some possible embodiments, the number of the threaded connectors and the number of the first silicone pads are multiple, and the plurality of threaded connectors and the plurality of first silicone pads correspond to each other one to one.

In some possible embodiments, at least some of the first silicone pads of the plurality of first silicone pads are connected to each other to form a strip-shaped silicone pad.

Through the technical scheme of the embodiment, at least part of the first silica gel pads in the plurality of first silica gel pads in the touch device are connected to form the strip-shaped silica gel pads, so that the number of the silica gel pads needing to be installed in the touch pad can be reduced, and the installation efficiency of the silica gel pads in the touch device is further improved so as to improve the production efficiency of the touch device. And the area of this whole silica gel pad is great, can improve its stability between circuit board and fixed bolster, prevents to rock about influencing the pressability of touch-control board.

In some possible embodiments, the first silicone pad is connected to the circuit board and the fixing bracket through a glue layer.

Through the technical scheme of this embodiment, can stabilize this first silica gel pad and press the stability of direction, prevent that this a plurality of first silica gel pads from producing the displacement on the horizontal direction to promote the pressing of user's finger and experience.

In some possible embodiments, the first elastic member is a second silicone rubber pad, and the second silicone rubber pad is disposed adjacent to the threaded connection member.

Through the technical scheme of this embodiment, this second silica gel pad also can play good supporting role between circuit board and fixed bolster, and this second silica gel pad is convenient for install between circuit board and fixed bolster.

In some possible embodiments, the number of the threaded connectors is multiple, and the second silicone rubber pad is arranged between two adjacent threaded connectors; or the number of the threaded connecting pieces and the number of the second silica gel pads are multiple, and the plurality of threaded connecting pieces and the plurality of second silica gel pads are in one-to-one correspondence.

In some possible embodiments, the second silicone pad is provided with a convex hull, and the second silicone pad is connected to the circuit board or the fixing bracket through the convex hull.

In some possible embodiments, the touch device further includes: the reinforcing piece, the first face of second silica gel pad is provided with the convex closure, and the reinforcing piece sets up in the second silica gel pad with first face relative second face, and second silica gel pad passes through the reinforcing piece and the convex closure is connected respectively in fixed bolster and circuit board.

Through the technical scheme of this embodiment, the reinforcement piece can improve the intensity of second silica gel pad, makes things convenient for the dismouting of second silica gel pad. In addition, through increasing this reinforcement piece, when the intensity is improved, can reduce the thickness of second silica gel pad to reduce touch device's whole thickness.

In some possible embodiments, the first elastic element includes a spring plate, and the spring plate is attached to the surface of the circuit board.

Through the technical scheme of the embodiment, the first elastic piece is designed into the elastic piece, the elastic piece can be directly attached to the circuit board in the manufacturing stage of the circuit board, the situation that the elastic piece is arranged between the circuit board and the fixed support through an additional process in the follow-up process is avoided, and therefore the manufacturing efficiency of the touch control board is improved.

In some possible embodiments, the spring plate is disposed adjacent to the threaded connector.

Through the technical scheme of this embodiment, the shell fragment can play certain supporting role to threaded connection's surrounding space under quiescent condition, and under the state that the user pressed, this shell fragment can improve user's the pressing and feel to promote the user and experience the use of touch-control board.

In some possible embodiments, the number of the elastic pieces is multiple, and the multiple elastic pieces are distributed on two sides of the symmetry axis of the circuit board.

Through the technical scheme of this embodiment, the shell fragment can be even distributes in the circuit board and sets up, is convenient for provide elastic support and promote user's the experience of pressing in the global of touch-control board.

In some possible embodiments, the touch device further includes: the second elastic piece is arranged between the threaded connecting piece and the fixed support and surrounds the periphery of the threaded connecting piece, and the second elastic piece provides elastic buffering between the threaded connecting piece and the fixed support.

Through the technical scheme of this embodiment, set up the second elastic component between threaded connection spare and fixed bolster. Under the condition that the user finger was repealing the press to the apron, threaded connection spare can upwards bounce according to the circuit board, and this second elastic component can prevent threaded connection spare direct contact in fixed bolster for bump and produce sound influence user's use experience between the two.

In some possible embodiments, the second elastic member is a silicone pad.

In some possible embodiments, the touch device further includes: the reinforcing plate is connected to the lower surface of the circuit board so as to reinforce the circuit board.

In the technical scheme of the embodiment, the strength and the flatness of the circuit board can be improved by connecting the reinforcing plate on the lower surface of the circuit board. Under the condition of improving the strength of the circuit board, the overall pressure resistance of the touch device can be improved, and the cover plate can be made of other materials except glass, such as resin materials and the like, so that the quality of the cover plate and the touch panel where the cover plate is located can be reduced, and the manufacturing cost can also be reduced. Under the condition of improving the flatness of the circuit board, the user can conveniently press the cover plate and the circuit board integrally, and the pressing detection performance of the touch control plate where the touch control device is located is improved.

In some possible embodiments, the touch device further includes: the first elastic piece is an elastic piece which is a structure formed on the reinforcing plate through a stamping process.

According to the technical scheme of the embodiment, the reinforcing plate and the elastic sheet can be integrated into a whole, and the elastic sheet does not need to be prepared by additionally utilizing other materials, so that the overall manufacturing cost of the touch pad can be saved.

In some possible embodiments, the pressure sensing element includes: the fixed support is provided with a convex structure matched with the travel switch; under the condition that a finger presses the cover plate, the travel switch on the circuit board moves along the pressing direction and contacts the convex structure, so that the travel switch is conducted to generate a pressing induction signal responding to the pressing of the finger.

Through the technical scheme of this embodiment, utilize travel switch and rather than matched with protruding structure, the response user that can be more effective and sensitive presses on the apron, and this embodiment reliability is higher.

In some possible embodiments, the travel switch includes a flexible structure protruding from the circuit board and a contact disposed on the circuit board; under the condition that a finger presses the cover plate, the flexible structure moves along the pressing direction and is in contact with the protruding structure so as to deform the flexible structure, and the deformed flexible structure is in contact with the contact of the circuit board so as to conduct the travel switch.

In some possible embodiments, the flexible structure is a dome having a radial dimension greater than a radial dimension of the raised structure.

Through the technical scheme of the embodiment, the snap dome can have a certain deformation space when being contacted and extruded by the protruding structure, so that the use performance of the snap dome is ensured.

In some possible embodiments, the cover sheet is made of Mylar material.

Through the technical scheme of the embodiment, the quality of the cover plate and the touch control plate where the cover plate is located can be reduced, and the manufacturing cost can be reduced.

In some possible embodiments, the touch device is configured to be mounted on a housing of the electronic device, the housing has a first through hole for mounting the touch device, and a step structure is formed at a lower edge of the first through hole; the fixing support is connected to the step structure through the fixing piece, so that the touch device is installed in the first through hole of the shell.

In some possible embodiments, the touch device is configured to be mounted to a housing of the electronic device, the housing having a first blind hole for mounting the touch device; the bottom of the first blind hole is reused as a fixed support, and the circuit board is connected to the bottom of the first blind hole through a threaded connecting piece, so that the touch device is installed in the first blind hole of the shell.

In a second aspect, a touch pad is provided, comprising: the touch device may be connected to a lower surface of the cover plate.

In a third aspect, an electronic device is provided, including: a housing, and the touch panel in the second aspect, the touch panel being mounted to the housing.

In some possible embodiments, the housing has a first through hole, a lower edge of which is formed with a stepped structure; a fixing support in the touch pad is connected to the step structure in the shell through a fixing piece, so that the touch pad is installed in the first through hole of the shell.

In some possible embodiments, the housing has a first blind hole, and the bottom of the first blind hole is reused as a fixing bracket in the touch pad; the circuit board in the touch control board is connected to the bottom of the first blind hole through a threaded connecting piece, so that the touch control board is installed in the first blind hole of the shell.

In some possible embodiments, the electronic device is a notebook computer, and the casing is a C-casing of the notebook computer.

Drawings

Fig. 1 is a schematic exploded view of a touch device according to an embodiment of the present disclosure.

Fig. 2 is a schematic partial cross-sectional view of a touch device corresponding to the embodiment in fig. 1.

Fig. 3 is a schematic diagram of two partial connections of the threaded connector provided by the embodiment of the present application with the circuit board and the fixing bracket.

Fig. 4 is a schematic diagram of a threaded connector and a corresponding limiting member on a circuit board according to an embodiment of the present disclosure.

Fig. 5 is a schematic diagram of a pair of threaded connectors connected to a circuit board and a fixing bracket according to an embodiment of the present application.

Fig. 6 is a schematic bottom view of two circuit boards provided in the embodiments of the present application.

Fig. 7 is a schematic exploded view of a second touch device according to an embodiment of the present disclosure.

Fig. 8 is a schematic diagram of connection between the first elastic element and the circuit board and the fixing bracket according to the embodiment of the present application.

Fig. 9 is a schematic perspective view of a strip-shaped silicone rubber pad provided in an embodiment of the present application.

Fig. 10 is a schematic exploded view of a third touch device according to an embodiment of the present disclosure.

Fig. 11 is a schematic exploded view of a fourth touch device according to an embodiment of the present disclosure.

Fig. 12 is a schematic perspective view of a second silicone rubber pad provided in the embodiment of the present application.

Fig. 13 is a schematic exploded view of a fifth touch device according to an embodiment of the present disclosure.

Fig. 14 is another schematic diagram of the connection of the first elastic element with the circuit board and the fixing bracket according to the embodiment of the present application.

Fig. 15 is a schematic exploded view of a sixth touch device according to an embodiment of the present application.

Fig. 16 is a schematic view of the connection between the second elastic member and the fixing bracket according to the embodiment of the present application.

Fig. 17 is a schematic exploded view of a seventh touch device according to an embodiment of the present application.

Fig. 18 is a schematic view of two connection of the first elastic member with the reinforcing plate and the fixing bracket according to the embodiment of the present application.

Fig. 19 is a schematic structural diagram of a reinforcing plate integrated with an elastic sheet according to an embodiment of the present application.

Fig. 20 is a schematic exploded view of an eighth touch device according to an embodiment of the present disclosure.

Fig. 21 is a schematic cross-sectional view of a travel switch and boss structure corresponding to the embodiment of fig. 20.

Fig. 22 is a schematic top view and a cross-sectional view of a housing of an electronic device for mounting a touch pad provided in an embodiment of the present application.

Fig. 23 is a schematic top view and a cross-sectional view of a touch pad provided in an embodiment of the present application mounted to the housing shown in fig. 22.

Fig. 24 is a schematic top view and a cross-sectional view of a housing of another electronic device for mounting a touch pad provided by an embodiment of the present application.

Fig. 25 is a schematic top view and a cross-sectional view of a touch pad provided in an embodiment of the present application mounted to the housing shown in fig. 24.

Description of the reference numerals:

100-touch device, 110-cover plate, 120-circuit board, 130-fixed support, 140-threaded connector, 1400-limit piece, 1401-first threaded connector, 1402-second threaded connector;

121-sensing element, 131-through hole, 141-patch nut, 142-screw, 1421-screw thread structure, 1422-screw head, 143-bolting screw, 1431-bolting screw thread structure, 1432-bolting screw polish rod, 1433-bolting screw head;

1501-first silica gel pad, 1502-second silica gel pad, 1521-convex hull of second silica gel pad, 1503-strip silica gel pad, 1511-through hole of strip silica gel pad, 1512-convex hull of strip silica gel pad, 1513-first glue layer, 1514-second glue layer, 1504-reinforcing sheet, 1505-shrapnel;

160-second elastic member, 170-stiffening plate;

122-travel switch, 1221-flexible structure, 132-convex structure;

200-a shell, 201-a first through hole, 202-a step structure, 210-a fixing piece, 203-a first blind hole, 204-a second blind hole, and a bottom plate-2021 of the first blind hole;

101-touch pad.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The present application relates to touch pads (or touch pads as well). In particular, the touch pad may provide an interactive touch and press interface with a user's finger. In the pressing interface, the touch pad can sense the pressing operation of the user to execute corresponding pressing feedback or instruct the electronic equipment where the touch pad is located to execute corresponding functions, and the pressing interface can serve as a 'key' function. In a touch interface, a touch pad may be used to sense the position and movement of a user's finger to perform corresponding touch feedback or to instruct an electronic device in which the touch pad is located to perform a corresponding function, and the touch interface may serve as a "mouse" function.

The touch pad may be applied to any human-computer interaction device, such as a notebook computer, a tablet computer, a mobile phone, an intelligent wearable device, an intelligent door lock, an Automatic Teller Machine (ATM), and the like, which is not limited in this respect in the embodiments of the present disclosure.

To the pressing interface of touch pad, in prior art, need utilize dedicated mechanical structure spare, for example structural components such as balancing pole realize pressing the detection, the structure of this touch pad is comparatively complicated and thickness is thicker, and this application provides a new touch pad, can multiplexing the circuit board in the touch pad and realize pressing the detection, and touch pad overall structure is simple, easily assembly and thickness are thinner.

Fig. 1 shows a schematic exploded view of a touch device 100 according to an embodiment of the present disclosure. Fig. 2 shows a partial cross-sectional schematic view of the touch device 100 corresponding to the embodiment of fig. 1.

As shown in fig. 1 and 2, the touch device 100 is disposed under a cover plate 110 to form a touch pad, and the touch device 100 includes: circuit board 120, mounting bracket 130, and threaded connection 140.

Specifically, the circuit board 120 is attached to the lower surface of the cap plate 110, and the circuit board 120 is provided with a press sensing element 121. The fixing bracket 130 is disposed under the circuit board 120, and the fixing bracket 130 has a through hole 131 therein. One end of the threaded connector 140 is connected to the circuit board 120 through the through hole 131, and the other end is limited on the lower surface of the fixing bracket 130, and the threaded connector 140 is used for providing a gap between the fixing bracket 130 and the circuit board 120.

Under the condition that the finger presses the cover plate 110, the circuit board 120 drives the threaded connector 140 to move in the gap between the circuit board 120 and the fixing bracket 130 along the pressing direction, so that the pressing sensing element 121 on the circuit board 120 senses the pressing of the finger on the cover plate 110.

Specifically, in the embodiment of the present application, the cover plate 110 may be an interface of the touch pad where the touch device 100 is located facing the user, and is used for receiving the pressing of the finger or other component of the user on the touch device 100. The cover plate 110 is required to have a certain rigidity, and the material thereof may be, for example, a non-conductive rigid object such as glass, polycarbonate (PC) sheet, ceramic sheet, mylar (Mylar) material, etc., and the thickness thereof is between 0.2mm and 1.5 mm. The cover plate 110 is used to be adhered to the circuit board 120 through a glue layer, which may be liquid glue or solid glue.

The Circuit Board 120 includes, but is not limited to, a Printed Circuit Board (PCB), and in the case that various components are disposed on the Circuit Board 120, the Circuit Board 120 may also be referred to as a Circuit Board Assembly (PCBA). The circuit board 120 has a certain rigidity and strength, and the whole of the cover plate 110 and the circuit board 120 can withstand the pressure of the user's finger. The cover plate 110 and the circuit board 120 may be connected to each other by a glue layer, or may be connected to each other by a mechanical connector.

The circuit board 120 is provided with a press sensing element 121. When a user's finger presses the cover plate 110, the cover plate 110 and the circuit board 120 may change to some extent, for example, change in displacement or change in deformation, and the pressing sensing element 121 may sense the change of the cover plate 110 and the circuit board 120 to generate a pressing operation signal. The pressing sensing element 121 may be electrically connected to other electronic components on the circuit board 120, so that it may feed back a sensed pressing operation signal to an external device through the circuit board 120.

A fixed bracket 130 is fixedly arranged below the circuit board 120, and the fixed bracket 130 has certain rigidity and strength to play a good role in fixing and supporting. By way of example and not limitation, the fixing bracket 130 may be a steel plate. The fixing bracket 130 is provided therein with a through hole 131, and one end of the screw connector 140 is connected to the circuit board 120 through the through hole 131. In a static state (i.e., the finger is not pressed on the cover plate 110), the other end of the threaded connection element 140 is limited on the lower surface of the fixing bracket 130, and the threaded connection element 140 can provide a certain gap between the fixing bracket 130 and the circuit board 120. When a finger presses the cover plate 110, the cover plate 110 and the circuit board 120 are deformed and displaced along the pressing direction of the finger, and specifically, the deformed region in the circuit board 120 moves along the pressing direction of the finger in the gap between the circuit board 120 and the fixing bracket 130, and the movement of the deformed region in the circuit board 120 causes the pressing sensing element 121 on the circuit board 120 to sense the pressing operation of the finger on the cover plate 110.

In addition, in a case where the user presses the cover plate 110, one end of the screw connector 140, which is limited to the lower surface of the fixing bracket 130, may follow the displacement change of the circuit board 120 in the pressing direction. That is, in the embodiment of the present application, the threaded connector 140 can connect the circuit board 120 and the fixing bracket 130 and limit the circuit board 120 in a static state, and in a state pressed by a user, the threaded connector 140 can follow the circuit board 120 to change in displacement.

Specifically, the threaded connector 140 may include a nut and a screw that mate with each other. In order to facilitate the fixed connection between the circuit board 120 and the fixing bracket 130, as shown in fig. 2, a nut (not shown in fig. 2) may be disposed on the circuit board 120, the nut may be embedded inside the circuit board 120 or may be attached to the surface of the circuit board 120, and correspondingly, a screw may be disposed on the fixing bracket 130. In this case, one end of the screw connector 140, which is limited on the lower surface of the fixing bracket 130, may be a screw head, and the size of the screw head may be larger than that of the through hole 131, so that the screw head may be limited below the through hole 131. Alternatively, in an alternative embodiment, the screw may be disposed on the circuit board 120, and correspondingly, the nut may be disposed on the fixing bracket 130.

Through the technical scheme of the embodiment of the application, the pressure detection function of the touch pad can be realized only by using basic elements such as the circuit board 120, the fixed support 130 and the like. In particular, the connection between the circuit board 120 and the fixing bracket 130 can be realized by the screw connection 140, which is convenient to operate, reliable and high in precision. In addition, the screw connector 140 can fixedly connect the circuit board 120 and the fixing bracket 130 in a stationary state to limit the circuit board 120 and provide a gap between the circuit board 120 and the fixing bracket 130, and in a pressing state of a user, the screw connector 140 can displace and change along with the gap between the circuit board 120 and the fixing bracket 130 of the circuit board 120, so that the pressing sensing element 121 of the circuit board 120 senses the pressing of a finger on the cover plate 110 to realize a pressing detection function. The technical scheme has the advantages of simple overall structure, small thickness and easy production and installation, and is favorable for popularization and use of the touch pad where the touch device 100 is located in electronic equipment.

In some related embodiments, the connection and the limitation between two objects may be achieved by using a structure such as a buckle, which is not easy to assemble and disassemble, and the "zero-fit" connection between the buckle and the fitting piece is difficult to achieve, resulting in a larger overall structure size. In the embodiment of the present application, the circuit board 120 and the fixing bracket 130 are connected by using the threaded connector 140, the threaded connector 140 is convenient to assemble and maintain, and the threaded connection can achieve zero-fit, so that the space occupied by installation is saved.

Fig. 3 shows a partial connection diagram of two threaded connectors 140 with the circuit board 120 and the fixing bracket 130 according to the embodiment of the present application.

As shown in fig. 3 (a), the screw connector 140 includes a chip nut 141 and a screw 142, the chip nut 141 is attached to the surface of the circuit board 120, a threaded structure 1421 of the screw 142 is connected to the chip nut 141 through a through hole 131 in the fixing bracket 130, and a screw head 1422 of the screw 142 is limited on the lower surface of the fixing bracket 130.

Specifically, in this embodiment, the patch nut 141 may be soldered to the Surface of the circuit board 120 by Surface Mount Technology (SMT). The patch nut 141 has an internal thread, and the thread structure 1421 of the screw 142 has an external thread, so that the patch nut 141 and the screw 142 can be securely fastened by the internal and external threads. In addition, the size of the screw head 1422 is larger than the size of the through hole 131 in the fixing bracket 130, so that the screw head 1422 can be limited on the lower surface of the fixing bracket 130. Optionally, the thickness of the screw head 1422 of the screw may be less than or equal to 0.4mm, which not only meets the requirement of locking the fixing bracket 130, but also reduces the thickness space occupied by the fixing bracket.

In addition, in this embodiment, the outer diameter of the patch nut 141 needs to be smaller than the diameter of the through hole 131 in the fixing bracket 130 so that the patch nut 141 can move in the through hole 131 following the circuit board 120 in case of being pressed by the user.

Through the technical scheme of this embodiment, can utilize and directly set up paster nut 141 on the surface of circuit board 120, and utilize the height of paster nut 141 to provide the clearance between circuit board 120 and fixed bolster 130, this implementation mode not only is convenient for process the equipment and holistic connection reliability and connection precision are higher.

As shown in (b) of fig. 3, the screw connector 140 includes a patch nut 141 and a bolting screw 143, a screw structure 1431 of the bolting screw 143 is connected to the patch nut 141 through a through hole 131 in the fixing bracket 130, a screw head 1433 of the bolting screw 143 is attached to the fixing bracket 130, and a polish rod 1432 of the bolting screw 143 is located between the screw structure 1431 and the screw head 1433 for providing a gap between the patch nut 141 and the fixing bracket 130.

Alternatively, in the present embodiment, the screw fitted to the patch nut 141 may be a captive screw 143 including a tertiary structure, or, in some related embodiments, may be referred to as a captive screw. The polish rod 1432 of the captive screw 143 is an intermediate structure of the captive screw 143, and is connected to the thread structure 1431 and the screw head 1433. The polish rod may be a smooth-surfaced cylindrical structure, and the radial dimension of the polish rod may be larger than that of the thread structure 1431, so that the polish rod 1432 may axially fasten and limit the connection between the thread structure 1431 and the patch nut 141, so as to further improve the connection reliability between the thread structure 1431 and the patch nut 141. In addition, the surface roughness of the polished rod is small, so that frictional resistance with other structural members, such as the fixing bracket 130, can be avoided, and the moving flexibility of the bolting screw 143 on which the polished rod 1432 is positioned can be improved.

After the polish rod 1432 and the thread structure 1431 pass through the through hole 131 in the fixing bracket 130, the thread structure 1431 is connected to the chip nut 141 on the circuit board 120, the screw head 1433 is limited on the lower surface of the fixing bracket 130 to realize the connection between the fixing bracket 130 and the circuit board 120, and the polish rod 1432 provides a gap between the chip nut 141 and the fixing bracket 130 so that the chip nut 141 can move in the gap along with the circuit board 120 under the pressing of the user.

In addition, in this embodiment, the outer diameter of the polish rod 1432 needs to be smaller than the diameter of the through hole 131 in the fixing bracket 130 so that the polish rod 1432 can follow the circuit board 120 to move in the through hole 131 in case of pressing by the user.

Through the technical scheme of the embodiment of the application, the screw is designed to be the bolting screw 143, the bolting screw 143 can also be fastened and matched with the patch nut 141, and on the other hand, the bolting screw 143 can be flexibly moved in the through hole 131 of the fixing support 130 by the design of the polish rod 1432, so that the pressure detection performance of the touch device 100 is improved.

Alternatively, as shown in fig. 3 (b), the diameter of the through hole 131 in the fixing bracket 130 may be smaller than the outer diameter of the patch nut 141.

With the technical solution of this embodiment, when the user presses the cover plate 110, the patch nut 141 moves downward, and when the patch nut 141 is pressed to the fixing bracket 130, it cannot be pressed further. At this time, the patch nut 141 can be used as a limiting member in the pressing direction, and the fixing bracket 130 does not contact with other devices on the circuit board 120, so that when the user presses the cover plate 110, the fixing bracket 130 is prevented from damaging the devices on the circuit board 120 due to an excessive pressing pressure, and the overall usability of the touch device 100 is not affected.

For the technical solution shown in fig. 3 (a), a limiting member may be additionally disposed around the patch nut 141 or the periphery of the patch nut 141, so as to prevent the fixing bracket 130 and the circuit board 120 from contacting each other when a user presses the cover plate 110, and damage to devices on the circuit board 120 is caused.

Optionally, in some embodiments, the threaded connector 140 has a stop corresponding thereto. Alternatively, the position-limiting member and the threaded connector 140 may be disposed at two opposite ends of the circuit board 120.

As an example, fig. 4 shows a schematic diagram of the threaded connection 140 and its corresponding stop 1400 on the circuit board 120.

As shown in fig. 4 (a), in the static state, the threaded connector 140 is located at a first end of the circuit board 120, and a limiting member 1400 is disposed at a second end of the circuit board 120 opposite to the first end. As an example, the first end of the circuit board 120 may be one end of the circuit board 120 in the length direction, and the opposite second end of the circuit board 120 may be the other end of the circuit board 120 in the length direction. Of course, the first end and the second end of the circuit board 120 may also be both ends of the circuit board 120 in the width direction or both ends of the circuit board 120 in the diagonal direction.

As shown in fig. 4 (b), when a finger presses the first end of the cover plate 110, the finger applies a pressure F to the first end, the cover plate 110 and the first end of the circuit board 120 drive the threaded connection element 140 to move along the pressing direction (as shown by the dotted line in the figure), and the position-limiting element 1400 is used for limiting the second end of the circuit board 120, so as to prevent the second end of the circuit board 120 from moving along the direction opposite to the pressing direction.

Alternatively, the position limiting member 1400 may be a connecting member connected to the circuit board 120 and the fixing bracket 130 (not shown in fig. 4). The position limiter 1400 includes, but is not limited to: glue layers, snap fit structures, or other types of attachment structures. Under the condition that the fixing bracket 130 is fixedly disposed, the limiting member 1400 can ensure that the second end of the circuit board 120 is also fixedly disposed, so as to limit the second end of the circuit board 120. Optionally, in some embodiments, the position-limiting member 1400 may also be the threaded connection member 140. In this case, the fixing bracket 130 may be connected to the circuit board 120 by at least one pair of screw connectors 140, and each pair of screw connectors 140 of the at least one pair of screw connectors 140 is symmetrically disposed with respect to a symmetry axis of the circuit board 120.

Specifically, in this embodiment, the surface of the circuit board 120 may be a regular axisymmetric pattern, for example, the surface of the circuit board 120 includes but is not limited to a rectangle, and the circuit board 120 may be a rectangular circuit board. In this case, the circuit board 120 has two symmetry axes, and each pair of the at least one pair of the threaded connectors 140 may be symmetrically disposed with respect to any one of the two symmetry axes.

As an example, fig. 5 shows a schematic view of the connection of a pair of threaded connectors 140 (a first threaded connector 1401 and a second threaded connector 1402) with the circuit board 120 and the fixing bracket 130. Illustratively, each of the pair of threaded connectors 140 may include the aforementioned captive screw 143 and the patch nut 141.

As shown in fig. 5 (a), in a static state, screw heads of the bolted screws in the first and second threaded

connectors

1401 and 1402 are attached to the fixing bracket 130, and the fixing bracket 130 and the circuit board 120 have a certain gap therebetween.

As shown in fig. 5 (b), when a finger is pressed against a right area of the cover plate 110 biased toward the second threaded connector 1402, the finger applies a downward pressure F to the right area. The cover plate 110 and the right area of the circuit board 120 both move downward under the pressure F, thereby moving the second threaded connector 1402 downward. Meanwhile, the first threaded connector 1401 on the left side may still be in a static state, and the first threaded connector 1401 may prevent the cover plate 110 and the left area of the circuit board 120 from tilting upward, thereby ensuring the overall reliability of the touch pad on which the touch device 100 is located.

Similarly, when a finger presses on the left region of the cover plate 110 biased to the first threaded connector 1401, the left region of the cover plate 110 and the circuit board 120 drives the first threaded connector 1401 to move downward, the second threaded connector 1402 on the right side can still be in a static state, and the second threaded connector 1402 can prevent the right region of the cover plate 110 and the circuit board 120 from tilting upward.

Alternatively, as shown in fig. 4 and 5, in order to facilitate the press sensing element 121 on the circuit board 120 to sense the pressing of the finger, the press sensing element 121 may be located at a central region of the circuit board 120. In this case, the pressing sensing element can sense the pressing of the finger more clearly whether the pressing position of the user is in the edge area or the central area of the circuit board 120.

It should be noted that the central region of the circuit board 120 may have a certain range of area, the center of the central region is the center of the circuit board 120, and the area of the central region may depend on the whole area of the circuit board 120. By way of example and not limitation, the area of the central region may be 1/4 or 1/16, etc. of the overall area of the circuit board 120.

Alternatively, in the embodiment shown in fig. 4 and 5, the pressing sensing element 121 may be an elastic structure having a deformation capability, and the fixing bracket 130 is provided with a protruding structure 132 corresponding to the elastic structure. When a user presses the cover plate 110, the elastic structure can be deformed by being pressed by the protrusion structure 132, so as to detect the user's pressing.

Through the technical scheme of the embodiment of the application, the touch pad where the touch device 100 is located can be a touch pad pressed by the whole domain, namely, the user finger can press any position in the touch pad, and the touch pad can sense the pressing of the user finger, so that the use experience of the user on the touch pad can be greatly improved.

Fig. 6 shows schematic bottom views of two circuit boards 120 provided in the embodiments of the present application. It will be appreciated that where the threaded connector 140 includes the patch nut 141 of the above embodiment, the threaded connector 140 shown in fig. 6 may specifically be the patch nut 141 of the above embodiment.

As an example, as shown in fig. 6 (a), the circuit board 120 may be a rectangular circuit board, and the fixing bracket 130 may be connected to the circuit board 120 by two pairs of screw connectors 140, wherein the two pairs of screw connectors 140 are disposed at four corner regions of the rectangular circuit board.

In the exemplary embodiment, the threaded connectors 140 may also be symmetrically disposed with respect to the symmetry axis of the circuit board 120, and at the same time, each threaded connector 140 of the two pairs of threaded connectors 140 is disposed in a corner region of the rectangular circuit board.

When a finger presses one side edge region of the cover plate 110 of the touch pad, the other side edge region of the cover plate 110 and the circuit board 120 is easy to tilt. Therefore, in the present embodiment, the four corner regions of the circuit board 120 are connected to the fixing bracket 130 through the two pairs of threaded connectors 140, so that when a finger presses the cover plate 110, the four corner regions of the cover plate 110 and the circuit board 120 are well prevented from tilting, and the pressing performance of the touch panel on which the touch device 100 is located is reliably ensured.

As another example, as shown in fig. 6 (b), the circuit board 120 may be a rectangular circuit board, and the fixing bracket 130 may be connected to the circuit board 120 by three pairs of screw connectors 140, wherein two pairs of screw connectors 140 of the three pairs of screw connectors 140 are disposed at four corner regions of the rectangular circuit board, and the other pair of screw connectors 140 is disposed at a central region of the rectangular circuit board.

In the exemplary embodiment, the three pairs of threaded connectors 140 may also be symmetrically disposed with respect to the symmetry axis of the circuit board 120, and at the same time, four threaded connectors 140 are disposed in the four corner regions of the rectangular circuit board, and the other two threaded connectors 140 are disposed in the center region of the rectangular circuit board.

In this technical solution, except that two pairs of threaded connectors 140 connect the four corner regions of the circuit board 120 to the fixing bracket 130, the problem that the four corner regions of the cover plate 110 and the circuit board 120 are tilted due to the fact that a finger presses on the cover plate 110 can be well prevented, and the center region of the circuit board 120 can be further connected to the fixing bracket 130 through the pair of threaded connectors 140, so as to ensure the pressing performance of the finger of the user at the center region.

Alternatively, as shown in fig. 6, four screw connectors 140 are respectively located at four corner regions of the rectangular circuit board. Taking the example where the screw connector 140 includes the patch nut 141 in the above embodiment, in the embodiment of the present application, as shown in fig. 6 (a) and (b), the distance between the patch nut 141 and the edge of the rectangular circuit board in the short side direction of the rectangular circuit board is D1, and the distance between the patch nut 141 and the edge of the rectangular circuit board in the long side direction of the rectangular circuit board is D2. The distance D1 and/or D2 may be greater than or equal to 10mm, so as to prevent the patch nut 141 from being too close to the edge of the circuit board 120, which may cause an influence of an external environment on the patch nut 141 and the bolting screw 143, thereby affecting the reliability of the touch device 100. In addition, D2 may be less than or equal to 1/4 of the dimension of the long side of the rectangular circuit board, and/or D1 may be less than or equal to 1/4 of the dimension of the short side of the rectangular circuit board, such that the patch nut 141 and the captive screw 143 are disposed proximate to the edge of the rectangular circuit board.

As further shown in fig. 6 (b), in the case that the touch device 100 includes three pairs of the bolting screws 143 and the patch nuts 141, the distance between the patch nut 141 located in the central area of the circuit board 120 and the center of the circuit board 120 is D3, the D3 may be about 10mm, for example, the D3 may be in a range of 10mm ± 5mm, so that the patch nut 141 and the bolting screws 143 are disposed close to the center of the circuit board 120.

Optionally, in some embodiments, the touch device 100 further includes: the first elastic member is disposed between the circuit board 120 and the fixing bracket 130, and provides elastic support between the circuit board 120 and the fixing bracket 130.

Alternatively, in the embodiment of the present application, the first elastic member may be made of an elastic material, such as silicone rubber. Alternatively, the first elastic member may be a mechanical element having elasticity, such as a spring, an elastic sheet, and the like. The embodiment of the present application does not limit the specific implementation manner of the first elastic member, and it is sufficient to provide a certain elastic support between the circuit board 120 and the fixing bracket 130.

Alternatively, the first elastic member may abut against the circuit board 120 and the fixing bracket 130 at the same time. In a static state, the first elastic member can provide a good supporting function for the circuit board 120 and the fixing bracket 130.

When the user's finger presses the cover plate 110, the first elastic member does not affect the displacement change of the circuit board 120 under the action of pressure, and due to the existence of the first elastic member, the user can experience a better pressing hand feeling, so as to improve the user experience of the user on the touch pad where the touch device 100 is located.

In summary, according to the technical solution of the embodiment of the present application, a first elastic member is disposed between the circuit board 120 and the fixing bracket 130, and in a static state, the first elastic member can support the circuit board 120 and the fixing bracket 130. When the user's finger presses the cover plate 110, the first elastic member can improve the pressing hand feeling of the user, thereby improving the user experience of the user on the touch pad where the touch device 100 is located.

Fig. 7 shows a schematic exploded view of another touch device 100 according to an embodiment of the present disclosure.

Alternatively, in some embodiments, as shown in fig. 7, the first elastic member may be a first silicone pad 1501, and the first silicone pad 1501 surrounds the periphery of the threaded connection member 140 (e.g., the bolting screw 143 shown in fig. 7).

In the case where the threaded connector 140 includes the patch nut 141 and the bolting screw 143, fig. 8 shows a schematic connection diagram of the first silicone pad 1501 with the circuit board 120 and the fixing bracket 130.

As shown in fig. 7 and 8, the first silicone pad 1501 may be a hollow cylindrical structure, which is sleeved on the patch nut 141 and the polish rod 1432 of the bolting screw 143. Optionally, the first silicone pads 1501 of the columnar structure may correspond to the plurality of threaded connectors 140 one by one, for example, the plurality of first silicone pads 1501 are sleeved on the patch nut 141 and the polish rod 1432 of the bolting screw 143 one by one.

Through the technical scheme of the embodiment of the application, the first elastic member is designed to be the first silica gel pad 1501, the first silica gel pad 1501 is easy to manufacture and easy to install between the circuit board 120 and the fixing support 130, in addition, the first silica gel pad 1501 surrounds the periphery of the threaded connection member 140, the threaded connection member 140 can be limited in the horizontal direction, the threaded connection member 140 is prevented from shaking in the horizontal direction, and the pressing experience of a user on the touch panel where the touch device 100 is located is improved.

Optionally, in order to further stabilize the stability of the plurality of first silicone pads 1501 in the pressing direction and prevent the plurality of first silicone pads 1501 from displacing in the horizontal direction, the plurality of first silicone pads 1501 may be connected to the circuit board 120 and the fixing bracket 130 through an adhesive layer.

Optionally, the first silicone rubber pad 1501 provided in the embodiment of the present application may be a silicone rubber pad in other shapes besides the plurality of hollow cylindrical silicone rubber pads shown in fig. 7. For example, at least some of the plurality of first silicone pads 1501 illustrated in fig. 7 described above may be connected to each other to form a strip-shaped silicone pad.

Fig. 9 shows a schematic perspective view of a strip-shaped silicone rubber pad provided in an embodiment of the present application. Fig. 9 (b) is a schematic diagram of fig. 9 (a) after being turned upside down, and fig. 9 (c) is a schematic diagram of adding an adhesive layer on the basis of fig. (a).

As shown in fig. 9 (a) and (b), in the embodiment of the present application, the touch device 100 may include a strip-shaped silicone pad 1503, where two ends of the strip-shaped silicone pad 1503 are provided with two through holes 1511, and the two through holes 1511 are used for passing through two threaded connectors 140, respectively.

The region of the through hole 1511 may be raised relative to other regions of the strip-shaped silicone pad 1503. Alternatively, the two end regions of the strip-shaped silicone pad 1503 may form a convex hull 1512, and the through holes 1511 are disposed in the convex hull 1512.

As shown in fig. 9 (a) and (b), the convex hull 1512 may be a hollow convex structure. On one hand, the hollow convex structure can reduce the overall weight of the strip-shaped silicone rubber pad 1503, and on the other hand, the hollow convex structure can also improve the pressing experience of the user finger on the touch pad where the touch device 100 is located.

As shown in fig. 9 (c), in order to enhance the stability of the strip-shaped silicone pads 1503 in the pressing direction and prevent the plurality of strip-shaped silicone pads 1503 from being displaced in the horizontal direction, the strip-shaped silicone pads 1503 may be connected to the circuit board 120 and the fixing bracket 130 by an adhesive layer.

Specifically, a first glue layer 1513 is disposed on the upper surface of the convex hull 1512 of the strip-shaped silicone pad 1503, a second glue layer 1514 is disposed on the lower surface of the strip-shaped silicone pad 1503, and the strip-shaped silicone pad 1503 is connected to the circuit board 120 and the fixing bracket 130 through the first glue layer 1513 and the second glue layer 1514.

Alternatively, for the case that the touch device 100 includes four threaded connectors 140 in the above embodiment, the touch device 100 may include two strip-shaped silicone pads 1503 described above to provide elastic support around the four threaded connectors 140. In some embodiments, the two strip-shaped silicone pads 1503 are arranged side by side along the long side direction of the circuit board 120, or may be arranged side by side along the short side direction of the circuit board 120.

Through the technical scheme of the embodiment of the application, at least some of the first silicone pads 1501 in the touch device 100 are connected to form the strip-shaped silicone pad 1503, so that the number of silicone pads that need to be installed in the touch device 100 can be reduced, and the installation efficiency of the silicone pads in the touch device 100 is further improved to improve the production efficiency of the touch device 100. The area of the integral silicone pad is large, so that the stability of the integral silicone pad between the circuit board 120 and the fixing bracket 130 can be improved, and the influence of left-right shaking on the pressing performance of the touch pad where the touch device 100 is located can be prevented.

Alternatively, the first elastic member may be a second silicone pad 1502 disposed adjacent to the threaded connector 140, in addition to the first silicone pad 1501 surrounding the threaded connector 140 shown in fig. 7 to 8.

In some embodiments, the number of the threaded connectors 140 and the number of the second silicone pads 1502 are both multiple, and the multiple second silicone pads 1502 may be disposed adjacent to the multiple threaded connectors 140 in a one-to-one correspondence.

Fig. 10 shows a schematic exploded view of another touch device 100 provided in the embodiment of the present application.

As shown in fig. 10, the touch device 100 includes four threaded connectors 140 located in four corner regions of the rectangular circuit board 120, four second silicone pads 1502 correspond to the four threaded connectors 140 one by one, and the corresponding second silicone pads are disposed adjacent to the threaded connectors 140.

Alternatively, the four second silicone pads 1502 may be closer to the four corners of the rectangular circuit board 120 than the four threaded connectors 140.

As an example, the second silicone rubber pad 1502 illustrated in fig. 10 may be a circular cylindrical silicone rubber pad, or in some alternative embodiments, the second silicone rubber pad 1502 may also be another shape, such as a polygon, and the like, which is not specifically limited in this embodiment.

Optionally, in the embodiment shown in fig. 10, the second silicone pad 1502 may be provided with a convex hull, and the convex hull may be a hollow convex hull, so as to reduce the weight of the second silicone pad 1502 while enhancing the pressing feeling of the user.

Alternatively, in other embodiments, the number of the threaded connectors 140 is multiple, and the second silicone pad 1502 may be disposed between two adjacent threaded connectors 140.

Fig. 11 shows a schematic exploded view of another touch device 100 provided in the embodiment of the present application.

As shown in fig. 11, the touch device 100 may include two second silicone pads 1502, the two second silicone pads 1502 may be disposed near two short edges of the circuit board 120, and each second silicone pad 1502 may be disposed between two threaded connectors 140 arranged along the short edges of the circuit board 120.

Through the technical solution of this embodiment, the second silicone pad 1502 can also play a good supporting role between the circuit board 120 and the fixing bracket 130, and the second silicone pad 1502 is also convenient to mount between the circuit board 120 and the fixing bracket 130.

Fig. 12 shows a schematic perspective view of a second silicone pad 1502 provided in an embodiment of the present application. Fig. 12 (b) is a schematic view of fig. 12 (a) turned upside down, and fig. 12 (c) is a schematic view of fig. 12 (a) with an adhesive layer and a reinforcing sheet added.

As shown in fig. 12 (a) and (b), a convex hull 1521 may be disposed on the second silicone pad 1502, and the second silicone pad 1502 may be connected to the circuit board 120 or the fixing bracket 130 through the convex hull 1521.

Alternatively, the convex hull 1521 may be a hollow convex structure. On the one hand, this hollow protruding structure can reduce the whole quality of second silica gel pad 1502, and on the other hand, this hollow protruding structure also can improve the press of user's finger and experience.

As shown in fig. 12 (c), the touch device 100 may further include: the reinforcing sheet 1504, the first face of the second silicone rubber pad 1502 is provided with a convex hull 1521, the reinforcing sheet 1504 is arranged on the second face of the second silicone rubber pad 1502 opposite to the first face, and the second silicone rubber pad 1502 is respectively connected to the fixing bracket 130 and the circuit board 120 through the reinforcing sheet 1504 and the convex hull 1521.

Optionally, the stiffener 1504 includes, but is not limited to, a steel sheet. The reinforcing plate 1504 may be connected to the second silicone rubber pad 1502 through various processes, for example, the reinforcing plate 1504 and the second silicone rubber pad 1502 may be formed into an integral structure through an oil pressure molding process.

Optionally, a through hole is formed in the reinforcing sheet 1504 corresponding to the hollow convex hull 1521 in the second silicone rubber pad 1502. The other region of the reinforcing plate 1504 except for the through hole can be connected to the fixing bracket 130 or the circuit board 120 through the second glue layer 1514, so that the second silicone pad 1502 is connected to the fixing bracket 130 or the circuit board 120 through the reinforcing plate 1504.

Correspondingly, the first adhesive layer 1513 may be disposed on the convex hull 1521, and the second silicone pad 1502 may be connected to the circuit board 120 or the fixing bracket 130 through the convex hull 1521 and the first adhesive layer 1513.

Through the technical scheme of this embodiment, the reinforcement piece 1504 can improve the strength of the second silicone rubber pad 1502, and the second silicone rubber pad 1502 is convenient to disassemble and assemble. In addition, by adding the reinforcing sheet 1504, the strength is improved, and the thickness of the second silicone pad 1502 can be reduced, thereby reducing the overall thickness of the touch device 100. Moreover, compared with the method of simply connecting the second silicone rubber pad 1502 with the fixing bracket 130 and the circuit board 120 through a rubber layer, the overall molding bonding force of the second silicone rubber pad 1502 and the reinforcing sheet 1504 is strong, and the material of the second rubber layer 1514 for connecting the reinforcing sheet 1504 is better selected.

Optionally, in some embodiments, when the fixing bracket 130 is a dedicated fixing bracket in the touch device 100, the second silicone pad 1502 may be connected to the fixing bracket 130 through the convex hull 1521, and may also be connected to the fixing bracket 130 through the reinforcing sheet 1504. When the fixing bracket 130 is a fixing bracket in a multiplexing electronic device, the second silicone rubber pad 1502 is connected to the fixing bracket 130 through the convex hull 1521 and connected to the circuit board 120 through the reinforcing sheet 1504, so that the connection reliability between the second silicone rubber pad 1502 and the circuit board 120 is improved.

The first elastic member may be a spring plate, in addition to the silicone pad shown in fig. 7 to 12.

Fig. 13 shows a schematic exploded view of another touch device 100 provided in the embodiment of the present application.

As shown in fig. 13, the first elastic member is a spring 1505, and the spring 1505 is attached to the surface of the circuit board 120.

In the case where the threaded connection 140 includes a patch nut 141 and a captive screw 143, fig. 14 shows the connection of the spring 1505 with the circuit board 120 and the fixing bracket 130.

As shown in fig. 13 and 14, the resilient tab 1505 may be a cantilever beam structure with a fixed end connected to the circuit board 120 and a free end attached to the fixing bracket 130. In the rest state, the elastic sheet 1505 can play a certain supporting role between the circuit board 120 and the fixing bracket 130. When the user presses the cover 110 with a finger, the free end of the elastic sheet 1505 is bounced upward by the reaction force of the fixing bracket 130, so that the user can feel better when pressing the touch pad of the touch device 100.

Alternatively, the resilient tab 1505 may be disposed on a side of the threaded connector 140 near the center of the circuit board 120 and adjacent to the threaded connector 140. Alternatively, the resilient tab 1505 may be attached to the surface of the circuit board 120 by an SMT process.

Through the technical scheme of the embodiment of the application, the first elastic member is designed as the elastic sheet 1505, and the elastic sheet 1505 can be directly attached to the circuit board 120 in the manufacturing stage of the circuit board 120, so that the subsequent need of arranging the elastic member between the circuit board 120 and the fixing bracket 130 through an additional process is avoided, and the manufacturing efficiency of the touch device 100 is improved.

Alternatively, in some embodiments, as shown in fig. 13 and 14, the spring 1505 may be disposed adjacent to the threaded connector 140. In the case that the number of the screw connectors 140 is plural, the elastic pieces 1505 may correspond to the screw connectors 140 one by one. For example, in the embodiment shown in fig. 13, four resilient tabs 1505 may be disposed adjacent to four threaded connectors 140 in a one-to-one correspondence.

Through the technical scheme of the embodiment, the elastic sheet 1505 can play a certain supporting role for the surrounding space of the threaded connecting member 140 in a static state, and in a pressing state of a user, the elastic sheet 1505 can improve the pressing hand feeling of the user, so that the use experience of the user on the touch pad where the touch device 100 is located is improved.

Optionally, in the embodiment shown in fig. 13 and 14, besides the technical solution that the plurality of elastic pieces 1505 are disposed adjacent to the threaded connector 140, the plurality of elastic pieces 1505 can also be disposed on two sides of the symmetry axis of the circuit board 120 in a distributed manner. For example, the elastic pieces 1505 are disposed on two sides of the symmetry axis of the circuit board 120 parallel to the short side direction.

Alternatively, in other embodiments, the elastic pieces 1505 may be disposed only on two sides of the symmetry axis of the circuit board 120, but not adjacent to the threaded connection member 140, for example, the touch device 100 may include two elastic pieces 1505, and the two elastic pieces 1505 may be disposed on two side regions of the symmetry axis of the circuit board 120 parallel to the short side direction respectively.

Through the technical solution of this embodiment, the elastic sheets 1505 can be uniformly distributed in the circuit board 120, so as to provide elastic support and improve the pressing experience of the user in the global position of the touch pad where the touch device 100 is located.

In the above embodiments shown in fig. 7 to 14, a first elastic member is disposed between the circuit board 120 and the fixing bracket 130 to provide elastic support between the circuit board 120 and the fixing bracket 130. Optionally, in other embodiments, the touch device 100 further includes: a second elastic member which can provide elastic buffering between the screw connector 140 and the fixing bracket 130.

As an example, on the basis of the embodiment shown in fig. 10, fig. 15 shows a schematic exploded structure diagram of another touch device 100 provided in the embodiment of the present application.

As shown in fig. 15, the touch device 100 further includes: the second elastic member 160 is disposed between the threaded connection member 140 and the fixed bracket 130 and surrounds the threaded connection member 140, and the second elastic member 160 provides elastic buffering between the threaded connection member 140 and the fixed bracket 130.

In the case that the screw connector 140 includes a patch nut 141 and a setscrew 143, fig. 16 shows a schematic view of the connection of the second elastic member 160 to the fixing bracket 130.

Alternatively, to facilitate the assembly of the second elastic member 160 around the threaded connection member 140, the second elastic member 160 may be a silicone pad. As an example, as shown in fig. 16, in case that the threaded connector 140 includes the bolting screw 143, the silicone pad may be sleeved on the polish rod 1432 of the bolting screw 143 and attached to the screw head 1433 of the bolting screw 143. After the bolting screw 143 is connected to the chip nut 141 on the circuit board 120 through the through hole 131 in the fixing bracket 130, the silicone pad may abut against the lower surface of the fixing bracket 130 and the upper surface of the screw head 1433, so as to provide an elastic buffer between the fixing bracket 130 and the screw head 1433.

Through the technical solution of the embodiment of the present application, the second elastic member 160 is disposed between the threaded connection member 140 and the fixing bracket 130. In a case that the user's finger is under the condition of removing the pressing on the cover plate 110, the threaded connection member 140 will bounce upwards according to the circuit board 120, and the second elastic member 160 can prevent the threaded connection member 140 from directly contacting the fixed bracket 130, so that the user's experience will be affected by the sound generated by the collision between the two members.

It should be noted that fig. 15 and fig. 16 only schematically illustrate the structure of the touch device 100 including the second elastic member 160 in the embodiment of the present application, and in other alternative embodiments, the touch device 100 may also include only the second elastic member 160 without including the first elastic member, or the first elastic member in the touch device 100 may also be the elastic member in any embodiment of fig. 7 to fig. 14.

In the above application embodiment, the touch panel of the touch device 100 is pressed by the cover plate 110 and the circuit board 120, and in order to satisfy the pressing requirement of the user, the cover plate 110 and the circuit board 120 need to satisfy a certain rigidity and strength, and therefore, the cover plate 110 may be made of a glass material with a higher rigidity, and/or the circuit board 120 may have a larger thickness to improve the compressive strength thereof.

In view of this, fig. 17 shows a schematic exploded structure diagram of another touch device 100 provided in the embodiment of the present application.

As shown in fig. 17, in the embodiment of the present application, the touch device 100 may further include: the reinforcing plate 170 is connected to the lower surface of the circuit board 120 to reinforce the circuit board 120.

Alternatively, the reinforcing plate 170 may be a metal plate having a relatively high strength, such as a steel plate or the like. The strength of the reinforcing plate 170 is higher than that of the circuit board 120, and therefore, the strength of the combination of the reinforcing plate 170 and the circuit board 120 is higher than that of the circuit board 120 alone at the same thickness.

In addition, the reinforcing plate 170 has rigidity higher than that of the circuit board 120. In the manufacturing process of the circuit board 120, the problem of warpage and the like is prone to occur, and after the reinforcing plate 170 is connected to the lower surface of the circuit board 120, the reinforcing plate 170 can improve the warpage problem of the circuit board 120 and improve the flatness of the circuit board 120.

By attaching the reinforcing plate 170 to the lower surface of the circuit board 120, the strength and flatness of the circuit board 120 can be improved. Under the condition of improving the strength of the circuit board 120, the overall pressure resistance of the touch device 100 can be improved, and the cover plate 110 can be made of other materials except glass, such as Mylar material, which not only can reduce the quality of the cover plate 110 and the touch pad where the cover plate is located, but also can reduce the manufacturing cost. In the case of improving the flatness of the circuit board 120, the user can press the cover plate 110 and the circuit board 120 integrally, so as to improve the press detection performance of the touch pad where the touch device 100 is located.

Optionally, in some embodiments, the thickness of the circuit board 120 is about 0.5mm, and the thickness of the stiffener 170 connected thereto is about 0.25mm, and the thickness of the circuit board 120 and the thickness of the stiffener 170 can meet the requirements of small thickness and high strength at the same time, so as to save the thickness space of the touch device 100 and ensure the pressing requirement of the touch device 100.

Alternatively, as shown in fig. 17, the stiffener 170 has a through hole formed therein, and the through hole can be used for accommodating electronic components in the circuit board 120. For example, the through hole may be used to accommodate various components such as the chip nut 141 attached to the circuit board 120 and the press sensing element 121. The reinforcing plate 170 can reinforce the circuit board 120 and does not affect the arrangement of various electronic components on the circuit board 120.

Optionally, in this embodiment, the touch device 100 may further include a first elastic element provided in any one of the embodiments of fig. 7 to 14, the first elastic element may be disposed between the reinforcing plate 170 and the fixing bracket 130, and the first elastic element provides an elastic support between the reinforcing plate 170 and the fixing bracket 130.

By way of example, fig. 18 shows two connection diagrams of the first elastic element with the reinforcing plate 170 and the fixing bracket 130 according to the embodiment of the present application. Fig. 18 (a) may correspond to fig. 17.

As shown in fig. 17 and fig. 18 (a), the first elastic member may be the second silicone pad 1502. The second silicone rubber pad 1502 may be disposed adjacent to the threaded connection member 140, and the second silicone rubber pad 1502 may abut against the lower surface of the reinforcing plate 170 and the upper surface of the fixing bracket 130.

As shown in fig. 18 (b), the first elastic member may be a resilient sheet 1505, and the resilient sheet 1505 is attached to the surface of the circuit board 120 and can be received in the through hole of the reinforcing plate 170.

Alternatively, in other embodiments, the first elastic member may also be the first silicone pad 1501. Specifically, the related technical solution of the first elastic element can refer to the specific description of the embodiment shown in fig. 7 to 14, and is not repeated herein.

In the case that the first elastic member is the elastic piece 1505, it may be integrated into the reinforcing plate 170, in addition to being attached to the surface of the circuit board 120 as shown in fig. 18 (b).

Fig. 19 is a schematic structural diagram illustrating a reinforcing plate 170 integrated with a spring 1505 according to an embodiment of the present disclosure.

As shown in fig. 19, in the embodiment of the present application, a plurality of elastic sheets 1505 may be integrated in the reinforcing plate 170, and the position design of the elastic sheets 1505 in the reinforcing plate 170 may refer to the position design of the elastic sheets 1505 in the circuit board 120 in the embodiments shown in fig. 13 and fig. 14.

By way of example and not limitation, the elastic sheet 1505 may be prepared and formed in the reinforcing plate 170 through a stamping process, or in other embodiments, the elastic sheet 1505 may also be formed in the reinforcing plate 170 through another integral molding process, which is not specifically limited in the embodiments of the present application.

Through the technical scheme of the embodiment of the application, the reinforcing plate 170 and the elastic sheet 1505 can be integrated into a whole, and other materials are not required to be additionally used for preparing the elastic sheet, so that the overall manufacturing cost of the touch device 100 can be saved.

Fig. 20 shows a schematic exploded view of another touch device 100 provided in the embodiment of the present application.

As shown in fig. 20, in the embodiment of the present application, the pressing sensing element 121 on the circuit board 120 may include: the travel switch 122 and the fixing bracket 130 are provided with a protruding structure 132 engaged with the travel switch 122.

Under the condition that the user presses the cover plate 110 by a finger, the travel switch 122 on the circuit board 120 moves along the pressing direction and contacts the convex structure 132, so that the travel switch 122 is conducted to generate a pressing sensing signal responding to the pressing of the finger.

Fig. 21 shows, as a possible embodiment, a schematic cross-sectional view of the travel switch 122 and the raised structure 132 corresponding to fig. 20.

Alternatively, as shown in fig. 21, the travel switch 122 includes a flexible structure 1221 protruding from the circuit board 120 and a contact (not shown in fig. 21) disposed on the surface of the circuit board 120. Under the condition that the user's finger presses the cover plate 110, the flexible structure 1221 moves along the pressing direction and contacts the protruding structure 132 in the fixing bracket 130 to deform the flexible structure 1221, and the deformed flexible structure 1221 contacts the contact of the circuit board 120 to turn on the travel switch 122.

Through the technical scheme of the embodiment of the application, the travel switch 122 and the protrusion structure 132 matched with the travel switch are utilized, so that the pressing of a user on the touch pad where the touch device 100 is located can be effectively and sensitively sensed, and the implementation method has high reliability.

By way of example, in the embodiment shown in fig. 21, the flexible structure 1221 may be a snap dome and the travel switch 122 may be understood as a dome key.

Alternatively, the radial dimension of the snap dome may be larger than the radial dimension of the protrusion 132 on the fixing bracket 130, so that when the snap dome is contacted and pressed by the protrusion 132, a certain deformation space may be provided, thereby ensuring the usability of the snap dome.

Alternatively, in some alternative embodiments, the travel switch 122 may be a switch in addition to the dome key shown in fig. 21, and the specific implementation manner of the travel switch 122 is not limited in this embodiment of the application.

An embodiment of the present application further provides a touch panel, including: in the above embodiments of the cover plate 110 and the touch device 100, the touch device 100 is connected to the lower surface of the cover plate 110.

The touch device 100 and the related technical solution of the touch pad provided in the embodiments of the present application are described above with reference to fig. 1 to 21. Next, a mounting manner of the touch pad where the touch device 100 is located in the electronic device in the embodiment of the present application is described with reference to fig. 22 to 25.

Fig. 22 shows a schematic top view and a cross-sectional view of a housing 200 of an electronic device for mounting a touch pad provided by an embodiment of the present application.

As shown in fig. 22 (a), the housing 200 may be provided with a first through hole 201. Optionally, the shape and area of the first through hole 201 may be adapted to the shape and area of the touch device 100 and the cover plate 110.

Alternatively, as shown in (b) of fig. 22, the lower edge of the first through-hole 201 is formed with a stepped structure 202. The touch pad formed by the touch device 100 and the cover plate 110 can be mounted on the step structure 202, so that at least a portion of the touch pad can be accommodated in the first through hole 201, thereby saving the thickness space required by the touch pad.

Fig. 23 shows a schematic top view and a cross-sectional view of the touch device 100 and the touch pad 101 formed of the cover plate 110 mounted on the housing 200 shown in fig. 22.

As shown in fig. 22 and 23, the fixing bracket 130 of the touch pad 101 is connected to the step structure 202 in the first through hole 201 of the housing 200 through the fixing member 210, so that the touch pad 101 is mounted in the first through hole 201 of the housing 200.

Alternatively, in the touch panel 101, the dimension of the fixing bracket 130 in the length direction may be larger than the dimension of the circuit board 120 in the length direction, and/or the dimension of the fixing bracket 130 in the width direction may be larger than the dimension of the circuit board 120 in the width direction, so that the fixing bracket 130 is attached to the step structure 202, and the circuit board 120 and the cover plate 110 may be accommodated in the first through hole 201.

Alternatively, the fixing member 210 may be a fixing screw, and a mounting hole adapted to the fixing screw is formed on the stepped surface of the stepped structure 202. In order to improve the mounting stability of the touch pad 101 on the housing 200, the number of the fixing members 210 may be plural, and the fixing members are correspondingly disposed at four corners of the touch pad 101.

Fig. 24 shows a schematic top view and a cross-sectional view of a housing 200 of an electronic device for mounting a touch pad provided by an embodiment of the present application.

As shown in fig. 24 (a), the housing 200 may be provided with a first blind hole 203. Optionally, the shape and area of the first blind hole 203 may be adapted to the shape and area of the touch device 100 and the cover plate 110. The bottom of the first blind hole 203 may be provided with a mounting hole for mounting a touch pad formed by the touch device 100 and the cover plate 110.

Optionally, as shown in (b) of fig. 24, in order to reduce the bottom thickness of the first blind hole 203 and facilitate the installation of the touch pad, a second blind hole 204 is disposed on the other side of the housing 200 facing away from the first blind hole 203, that is, the opening directions of the first blind hole 203 and the second blind hole 204 face away from each other. A bottom plate 2021 having a small thickness is formed between the first blind hole 203 and the second blind hole 204.

Fig. 25 shows a schematic top view and a cross-sectional view of the touch device 100 and the touch pad 101 formed of the cover plate 110 mounted on the housing 200 shown in fig. 24.

As shown in fig. 24 and 25, the bottom plate 2021 of the first blind hole 203 of the housing 200 can be reused as the fixing bracket 130 in the touch pad 101. The circuit board 120 of the touch pad 101 is connected to the bottom plate 2021 of the first blind hole 203 by the screw connector 140, so that the touch pad 101 is mounted to the first blind hole 203 of the housing 200.

Specifically, in the embodiment of the present application, the housing 200 may be provided with one or more blind holes to form a fixing member, which may serve as the fixing bracket 130 in the touch pad 101 to be connected to other components in the touch pad 101, such as the circuit board 120, for reliable installation of the touch pad 101 in the housing 200.

Through the technical solutions of the embodiments shown in fig. 22 to fig. 25, the touch pad 101 provided by the present application can be flexibly applied to housings of different electronic devices in different shapes, which is beneficial to application and popularization of the touch pad 101.

In addition, in the embodiments shown in fig. 22 to 25, when the electronic device is a notebook computer, the housing 200 may be a C-shell of the notebook computer, that is, a housing on a side where a keyboard is located in the notebook computer.

The embodiment of the present application further provides an electronic device, which includes a housing and the touch pad (including the touch device 100 and the cover plate 110) in the embodiment of the above application, where the touch pad is mounted on the housing and is used for providing a press detection function to the electronic device.

By way of example and not limitation, the electronic device in the embodiments of the present application may be a portable or mobile computing device such as a terminal device, a mobile phone, a tablet computer and its accessory keyboard, a notebook computer, a desktop computer, a game device, an in-vehicle electronic device or a wearable smart device, and other electronic devices such as an electronic database, an automobile, and a bank Automatic Teller Machine (ATM). This wearable smart machine includes that the function is complete, the size is big, can not rely on the smart mobile phone to realize complete or partial functional equipment, for example smart watch or smart glasses etc to and include only be concentrated on a certain kind of application function and need with other equipment like the equipment that the smart mobile phone cooperation was used, for example all kinds of intelligent bracelet, intelligent ornament etc. that carry out the physical sign monitoring.

Optionally, the housing of the electronic device provided in the embodiment of the present application may be the housing 200 shown in fig. 21 to 24, and the specific installation manner of the touch pad in the housing 200 may refer to the description related to the embodiment shown in fig. 21 to 24, which is not described herein again.

It should be noted that, without conflict, the embodiments and/or technical features in the embodiments described in the present application may be arbitrarily combined with each other, and the technical solutions obtained after the combination also should fall within the scope of the present application.

It should be understood that the specific examples in the embodiments of the present application are for the purpose of promoting a better understanding of the embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and that various modifications and variations can be made by those skilled in the art based on the above embodiments and fall within the scope of the present application.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A touch device for placement under a cover plate to form a touch pad, the touch device comprising:

the circuit board is connected to the lower surface of the cover plate and is provided with a pressing sensing element;

the fixing support is arranged below the circuit board, and a through hole is formed in the fixing support; one end of the threaded connecting piece is connected to the circuit board through the through hole, the other end of the threaded connecting piece is limited on the lower surface of the fixing support, and the threaded connecting piece is used for providing a gap between the fixing support and the circuit board;

under the condition that a finger presses the cover plate, the circuit board drives the threaded connecting piece to move in the gap along the pressing direction, so that the pressing sensing element on the circuit board senses the pressing of the finger on the cover plate.

2. The touch device of claim 1, wherein the threaded connector comprises a patch nut and a screw, the patch nut is attached to the surface of the circuit board, a threaded structure of the screw is connected to the patch nut through the through hole in the fixing bracket, and a screw head of the screw is limited on the lower surface of the fixing bracket.

3. The touch device of claim 2, wherein the screw is a captive screw, a thread structure of the captive screw is connected to the patch nut through the through hole in the fixing bracket, a screw head of the captive screw is limited on a lower surface of the fixing bracket, and a polish rod of the captive screw is located between the thread structure and the screw head to provide a gap between the patch nut and the fixing bracket.

4. The touch device of claim 3, wherein the diameter of the through hole in the fixing bracket is smaller than the outer diameter of the patch nut and larger than the outer diameter of the light rod.

5. The touch device according to any one of claims 1 to 4, wherein the threaded connector is located at a first end of the circuit board, and a stopper is disposed at a second end of the circuit board opposite to the first end;

under the condition that a finger presses the first end of the cover plate, the first end of the circuit board drives the threaded connecting piece to move in the gap along the pressing direction, and the limiting piece is used for limiting the second end of the circuit board and preventing the second end of the circuit board from moving along the direction opposite to the pressing direction.

6. The touch device of any one of claims 1 to 5, wherein the fixing bracket is connected to the circuit board by at least one pair of threaded connectors, each pair of threaded connectors of the at least one pair of threaded connectors being symmetrically disposed with respect to a symmetry axis of the circuit board, and the press sensing element is disposed in a central region of the circuit board.

7. The touch device of claim 6, wherein the circuit board is a rectangular circuit board, the fixing bracket is connected to the circuit board through two pairs of threaded connectors, and the two pairs of threaded connectors are disposed in four corner regions of the rectangular circuit board; or,

the circuit board is a rectangular circuit board, the fixed support is connected to the circuit board through three pairs of threaded connectors, two pairs of threaded connectors in the three pairs of threaded connectors are arranged in four corner regions of the rectangular circuit board, and one pair of threaded connectors is arranged in a center region of the rectangular circuit board.

8. The touch device according to any one of claims 1 to 7, further comprising: the first elastic piece is arranged between the circuit board and the fixed support and used for providing elastic support between the circuit board and the fixed support.

9. The touch device of claim 8, wherein the first elastic member is a first silicone pad surrounding the threaded connection member.

10. The touch device of claim 9, wherein the number of the threaded connectors and the number of the first silicone pads are multiple, and the plurality of threaded connectors and the plurality of first silicone pads are in one-to-one correspondence.

11. The touch device of claim 10, wherein at least some of the first silicone pads are connected to form a strip-shaped silicone pad.

12. The touch device of any one of claims 9 to 11, wherein the first silicone pad is connected to the circuit board and the fixing bracket through a glue layer.

13. The touch device of claim 8, wherein the first elastic member is a second silicone pad, and the second silicone pad is disposed adjacent to the threaded connection member.

14. The touch device of claim 13, wherein the number of the threaded connectors is multiple, and the second silicone pad is disposed between two adjacent threaded connectors; or,

the threaded connection spare with the quantity of second silica gel pad is a plurality of, and is a plurality of threaded connection spare and a plurality of second silica gel pad one-to-one.

15. The touch device of claim 13 or 14, wherein a convex hull is disposed on the second silicone pad, and the second silicone pad is connected to the circuit board or the fixing bracket through the convex hull.

16. The touch device of claim 15, further comprising: the reinforcing piece, the first face of second silica gel pad is provided with the convex closure, the reinforcing piece set up in the second silica gel pad with the second face that the first face is relative, the second silica gel pad pass through the reinforcing piece with the convex closure is connected respectively in the fixed bolster with the circuit board.

17. The touch device of claim 8, wherein the first elastic element comprises a spring plate, and the spring plate is attached to the surface of the circuit board.

18. The touch device of claim 17, wherein the spring plate is disposed adjacent to the threaded connector.

19. The touch device according to claim 17 or 18, wherein the number of the resilient pieces is plural, and the plural resilient pieces are disposed on two sides of a symmetry axis of the circuit board.

20. The touch device according to any one of claims 1 to 19, further comprising: the second elastic piece is arranged between the threaded connecting piece and the fixed support and surrounds the periphery of the threaded connecting piece, and the second elastic piece provides elastic buffering between the threaded connecting piece and the fixed support.

21. The touch device of claim 20, wherein the second elastic member is a silicone pad.

22. The touch device of any one of claims 1-21, further comprising: and the reinforcing plate is connected to the lower surface of the circuit board so as to reinforce the circuit board.

23. The touch device of claim 22, further comprising: the first elastic piece is an elastic piece which is a structure formed on the reinforcing plate through a stamping process.

24. The touch device of any one of claims 1 to 23, wherein the press sensing element comprises: the fixed support is provided with a protruding structure matched with the travel switch;

under the condition that the finger presses the cover plate, the travel switch on the circuit board moves along the pressing direction and contacts the convex structure, so that the travel switch is conducted to generate a pressing induction signal responding to the pressing of the finger.

25. The touch device of claim 24, wherein the travel switch comprises a flexible structure protruding from the circuit board and a contact disposed on the circuit board;

under the condition that the finger presses the cover plate, the flexible structure moves along the pressing direction and is in contact with the protruding structure so as to deform the flexible structure, and the deformed flexible structure is in contact with the contact of the circuit board so as to conduct the travel switch.

26. The touch device of claim 25, wherein the flexible structure is a snap dome having a radial dimension greater than a radial dimension of the protruding structure.

27. The touch device of any one of claims 1-26, wherein the cover sheet is made of Mylar.

28. The touch device according to any one of claims 1 to 27, wherein the touch device is configured to be mounted on a housing of an electronic apparatus, the housing has a first through hole for mounting the touch device, and a step structure is formed at a lower edge of the first through hole;

the fixing bracket is connected to the step structure through a fixing member, so that the touch device is mounted on the first through hole of the housing.

29. The touch device of any one of claims 1-27, wherein the touch device is configured to be mounted to a housing of an electronic device, the housing having a first blind hole for mounting the touch device;

the bottom plate of the first blind hole is reused as the fixed support, and the circuit board is connected to the bottom plate of the first blind hole through the threaded connecting piece, so that the touch device is installed in the first blind hole of the shell.

30. A touch panel, comprising: cover plate and

the touch device of any one of claims 1-29, wherein the touch device is attached to a lower surface of the cover.

31. An electronic device, comprising: a housing, and

the trackpad of claim 30, mounted to the housing.

32. The electronic device according to claim 31, wherein the housing has a first through hole, a lower edge of which is formed with a step structure;

a fixing bracket in the touch pad is connected to the step structure in the shell through a fixing piece, so that the touch pad is mounted in the first through hole of the shell; or,

the shell is provided with a first blind hole, and a bottom plate of the first blind hole is reused as a fixed support in the touch pad;

and a circuit board in the touch control board is connected to the bottom board of the first blind hole through a threaded connecting piece, so that the touch control board is arranged in the first blind hole of the shell.

33. The electronic device of claim 32, wherein the electronic device is a notebook computer, and the housing is a C-shell of the notebook computer.