CN217467633U - Touch pad, pressure touch device and electronic equipment - Google Patents

Touch pad, pressure touch device and electronic equipment Download PDF

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Publication number
CN217467633U
CN217467633U CN202221460179.5U CN202221460179U CN217467633U CN 217467633 U CN217467633 U CN 217467633U CN 202221460179 U CN202221460179 U CN 202221460179U CN 217467633 U CN217467633 U CN 217467633U
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China
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cantilever
elastic support
touch
pressure
circuit board
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CN202221460179.5U
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Chinese (zh)
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郭益平
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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Abstract

The application provides a touch pad, pressure touch device and electronic equipment, its pressure sensor subassembly includes elastic support and at least three pressure sensor, elastic support has at least three cantilever, at least three cantilever includes two first cantilevers and at least one second cantilever, two first cantilevers set up in two relative tip of elastic support, the second cantilever sets up in elastic support's middle section, the free end of each cantilever is provided with pressure sensor and elastic connection spare, elastic connection spare bonds with printed circuit board's second face, play the effect of elastic support touch pad, two first cantilevers and at least one second cantilever all can the elastic support touch pad, make the touch pad have three bearing position at least, avoid the touch pad middle zone to sink and influence the detection precision, do benefit to and improve the detection precision. And pressure sensors are respectively arranged on the cantilevers to detect the pressure applied to the cantilevers, so that the pressure applied to the touch pad is determined.

Description

Touch control panel, pressure touch control device and electronic equipment
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a touch panel, a pressure touch device, and an electronic apparatus.
Background
A touch pad is an input device for controlling a screen cursor applied to an electronic device. The touch control panel obtains touch control information such as high-resolution finger coordinates by detecting small capacitance changes of fingers of a user during operation in a panel area so as to accurately control movement and clicking of a screen cursor.
In order to improve the convenience of the operation of the touch pad, the pressure touch pad is gradually becoming a new trend. The pressure touch control panel cancels physical keys, and simulates mouse keys in a pressure detection and vibration feedback mode to realize touch operation. At present, the pressure touch pad has the problem of low pressure detection precision.
SUMMERY OF THE UTILITY MODEL
The application provides a touch pad, a pressure touch device and electronic equipment to solve the technical problem that the pressure detection precision of the existing pressure touch pad is low.
In order to solve the technical problem, the following technical scheme is adopted in the application:
a first aspect of the present application provides a touch panel, comprising: a printed circuit board, a pressure sensor assembly and a touch controller; the printed circuit board is provided with a first board surface and a second board surface which are opposite, and the first board surface of the printed circuit board is provided with a touch sensing electrode which is used for sensing the touch position of a finger and outputting a corresponding touch sensing signal when the finger touches or presses the touch control board; the pressure sensor assembly is arranged on the second board surface of the printed circuit board and comprises an elastic support and at least three pressure sensors; the elastic support is provided with at least three cantilevers, the at least three cantilevers comprise two first cantilevers and at least one second cantilever, the two first cantilevers are respectively arranged at two opposite end parts of the elastic support, and the second cantilever is arranged at the middle section of the elastic support; the free end of each cantilever is respectively provided with the pressure sensor, the pressure sensors are used for deforming under the action of pressure applied when the finger presses the touch pad, and the pressure sensors output corresponding pressure sensing signals; the free end of each cantilever is respectively bonded with an elastic connecting piece, and one surface of each elastic connecting piece, which is far away from the cantilever, is bonded with the second board surface of the printed circuit board; the touch controller is fixedly installed on the second board surface of the printed circuit board, electrically connected with the touch sensing electrode and the pressure sensor, and used for determining the touch position of the finger on the touch pad and the pressure applied by the finger from the touch sensing signal and the pressure sensing signal received by the touch sensing electrode and the pressure sensor.
Compared with the prior art, the touch pad provided by the first aspect of the application has the following advantages:
the application discloses a touch pad is provided with a pressure sensor assembly for detecting pressure applied to the touch pad. The pressure sensor assembly comprises an elastic support and at least three pressure sensors, the elastic support is provided with at least three cantilevers, the at least three cantilevers comprise two first cantilevers and at least one second cantilever, the two first cantilevers are arranged at two opposite end portions of the elastic support, the second cantilevers are arranged in the middle section of the elastic support, the free ends of the cantilevers are respectively provided with the pressure sensors and an elastic connecting piece, the elastic connecting piece is bonded with the second board surface of the printed circuit board, and the effect of elastically supporting the touch control board is achieved. Therefore, the first cantilever arranged at the end part of the elastic support can elastically support the touch pad, and the second cantilever arranged in the middle section of the elastic support can also elastically support the touch pad, so that the middle area of the touch pad can be supported, the touch pad at least has three supporting positions, the situation that the middle area of the touch pad sags to influence the detection precision is avoided, and the detection precision is favorably improved. Each pressure sensor is arranged on each cantilever to detect the pressure applied to the cantilever, so that the pressure applied to the touch pad is determined. The pressure sensor assembly of the embodiment of the application increases the number of the pressure sensors, increases the positions of pressure detection and improves the pressure detection precision of the touch pad. Compared with the arrangement of an additional structural support touch pad, the touch pad structure has the advantages that no new assembling process is added, so that the production efficiency can be ensured, and the production cost cannot be additionally increased.
As an improvement of the above touch panel of the present application, the fixed end of the second cantilever is located at the center of the elastic support.
As an improvement of the above touch panel of the present application, the elastic support is in a strip shape, and an extending direction of the free end of the first cantilever is the same as a length extending direction of the elastic support; and the extension direction of the free end of the second cantilever is perpendicular to the length extension direction of the elastic support.
As an improvement of the above-mentioned touch panel of the present application, the touch panel further includes: the flexible circuit board is arranged on a second board surface of the printed circuit board and comprises a flat cable, and the flat cable of the flexible circuit board is electrically connected with the pressure sensors arranged on the first cantilever and the second cantilever respectively; the flexible circuit board is electrically connected with the flat cable arranged on the first cantilever through the pressure sensor, and the flat cable is S-shaped.
As an improvement of the above touch panel of the present application, the flexible circuit board is provided with a flat cable pin; the second cantilever and the flat cable pin are positioned on the same side of the elastic support; and the elastic support is provided with an avoiding groove for avoiding the flat cable pins, and the avoiding groove is arranged on one side edge of the elastic support, which is provided with the second cantilever.
As an improvement of the above touch panel of the present application, an edge of one side of the elastic support, where the fixed end of the second cantilever is disposed, is recessed inward to form the avoiding groove; and the free end of the second cantilever protrudes out of the notch of the avoiding groove.
As an improvement of the above touch panel of the present application, a portion of the elastic support is bent toward a side where the fixed end of the second cantilever is disposed and protrudes out of the elastic support to form the avoiding groove; and the free end of the second cantilever is flush with the notch of the avoiding groove.
As an improvement of the above touch panel of the present application, the elastic support forming the avoiding groove has a dimension greater than or equal to 3mm along the extending direction of the second cantilever.
As an improvement of the above touch panel of the present application, the yield strength of the elastic support is greater than or equal to 150 Mpa; the elastic support is a stainless steel support, the thickness of the elastic support is greater than or equal to 0.4mm, or the elastic support is an aluminum support, and the thickness of the elastic support is greater than or equal to 0.8 mm.
As an improvement of the above touch panel of the present application, the second surface of the printed circuit board has two opposite long sides; the pressure sensor subassembly is provided with two at least, two at least the pressure sensor subassembly is followed the long limit direction of printed circuit board's second face extends, two at least the pressure sensor subassembly is close to respectively in two long limit edges of printed circuit board's second face.
As an improvement of the above-mentioned touch panel of the present application, the touch panel further includes: the reinforcing plate is fixedly connected with the second board surface of the printed circuit board; and the actuator is mounted on the second board surface of the printed circuit board and is electrically connected with the touch controller, and is used for responding to the pressure applied by the finger to carry out vibration feedback.
A second aspect of the present application provides a pressure touch device, including: a touch panel for providing an input interface for a touch or a press of a finger; the touch sensing device comprises a printed circuit board, a touch sensing circuit and a touch sensing circuit, wherein the printed circuit board is provided with a first board surface and a second board surface which are opposite to each other; the pressure sensor assembly is arranged on the second board surface of the printed circuit board and comprises an elastic support and at least three pressure sensors; the elastic support is provided with at least three cantilevers, the at least three cantilevers comprise two first cantilevers and at least one second cantilever, the two first cantilevers are respectively arranged at two opposite end parts of the elastic support, and the second cantilever is arranged at the middle section of the elastic support; the free end of each cantilever is respectively provided with the pressure sensor, the pressure sensors are used for deforming under the action of pressure applied when the fingers press the touch panel, and the pressure sensors output corresponding pressure sensing signals; and the free end of each cantilever is respectively bonded with an elastic connecting piece, and one surface of each elastic connecting piece, which is deviated from the cantilever, is bonded with the second board surface of the printed circuit board.
The pressure touch device provided by the second aspect of the present application has the same advantages as the touch pad of the first aspect, since it includes the pressure sensor assembly of the touch pad of the first aspect.
As an improvement of the above-mentioned pressure touch device of the present application, the fixed end of the second cantilever is located at the center of the elastic support.
As an improvement of the pressure touch device of the present application, the elastic support is in a strip shape, and an extending direction of the free end of the first cantilever is the same as a length extending direction of the elastic support; and the extension direction of the free end of the second cantilever is perpendicular to the length extension direction of the elastic support.
As an improvement of the above-mentioned pressure touch device of the present application, the pressure touch device further includes: the flexible circuit board is arranged on a second board surface of the printed circuit board and comprises a flat cable, and the flat cable of the flexible circuit board is electrically connected with the pressure sensors arranged on the first cantilever and the second cantilever respectively; the flexible circuit board is electrically connected with the flat cable arranged on the first cantilever through the pressure sensor, and the flat cable is S-shaped.
As an improvement of the above-mentioned pressure touch device of the present application, the flexible circuit board is provided with a flat cable pin; the second cantilever and the flat cable pin are positioned on the same side of the elastic support; and the elastic support is provided with an avoiding groove for avoiding the flat cable pins, and the avoiding groove is arranged on one side edge of the elastic support, which is provided with the second cantilever.
As an improvement of the above-mentioned pressure touch device of the present application, one side edge of the elastic bracket, where the fixed end of the second cantilever is disposed, is recessed inward to form the avoiding groove; and the free end of the second cantilever protrudes out of the notch of the avoiding groove.
As an improvement of the pressure touch device, a part of the elastic support is bent toward one side of the fixed end of the second cantilever and protrudes out of the elastic support to form the avoiding groove; and the free end of the second cantilever is flush with the notch of the avoiding groove.
A third aspect of the present application provides an electronic device comprising: a housing having a support structure disposed thereon; in the touch panel of the first aspect, the elastic support of the pressure sensor assembly of the touch panel is mounted on the support structure; alternatively, in the pressure touch device of the second aspect, the elastic support of the pressure sensor assembly of the pressure touch device is mounted on the support structure.
The electronic device provided by the third aspect of the present application has the same advantages as the pressure sensor assembly described in the first aspect or the second aspect because the electronic device includes the pressure sensor assembly described in the first aspect or the second aspect.
In addition to the technical problems addressed by the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the touch pad, the pressure touch device, and the electronic device provided by the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description of the embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present application or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only a part of the embodiments of the present application, and the drawings and the description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for a person skilled in the art by referring to a specific embodiment, and other drawings can be obtained from the drawings without inventive efforts for the person skilled in the art.
FIG. 1 is an exploded view of a pressure sensor assembly provided in accordance with an embodiment of the present application;
FIG. 2 is a top view of a pressure sensor assembly provided in accordance with an embodiment of the present application;
FIG. 3 is a side view of a pressure sensor assembly provided in accordance with an embodiment of the present application;
FIG. 4 is a bottom view of a pressure sensor assembly provided in accordance with an embodiment of the present application;
FIG. 5 is a top view of a pressure sensor assembly provided in accordance with another embodiment of the present application;
fig. 6 is an exploded view of a touch pad provided in an embodiment of the present application;
fig. 7 is an exploded view of a pressure touch device according to an embodiment of the present disclosure;
fig. 8 is a bottom view of a pressure touch device according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Description of reference numerals:
1000: a pressure sensor assembly; 2000: a touch pad; 3000: an electronic device;
100: an elastic support; 101: a first surface; 102: a second surface; 103: fixing the support surface; 111: avoiding the groove; 1111: a connecting section; 1112: bending the section; 1113: a body section; 112: a fixed part; 1121: a threaded fixing hole; 1122: mounting holes; 113: a jig positioning hole; 120: a first cantilever; 130: a second cantilever;
200: a pressure sensor;
300: a flexible circuit board; 310: a flat cable pin; 320: arranging wires; 330: avoiding holes; 340: a notch;
400: an elastic connecting member;
510: a first adhesive layer; 520: a second adhesive layer; 530: a third adhesive layer;
600: a printed circuit board; 601: a first board surface; 602: a second board surface; 610: a connection terminal; 620: an actuator; 630: a touch controller; 700: a touch panel; 800: a reinforcing plate; 810: avoiding the opening; 820: avoiding the gap.
Detailed Description
The pressure touch pad cancels physical keys, and simulates mouse keys in a pressure detection and vibration feedback mode to realize touch operation. The pressure touch pad generally includes a touch panel and a pressure detection device disposed on a bottom surface of the touch panel. In the research process, the inventor finds that the same acting force is applied to the middle area and the edge area of the touch pad, and the pressure detected by the pressure detection assembly has difference, so that the pressure detection precision of the pressure touch pad is influenced.
The inventor further studies the structure discovery of pressure touch pad, and present pressure touch pad sets up pressure detection subassembly respectively at four apex angle departments of rectangular touch panel usually, and pressure detection subassembly plays the effect of detecting the pressure to, near pressure detection subassembly is provided with the silica gel pad usually, and the silica gel pad is connected with touch panel, so that the pressure detection subassembly after the deformation can resume initial form, can also play the effect of elastic support touch panel. Due to the fact that the middle area of the touch panel is lack of the supporting structure, the middle area of the touch panel is prone to collapse and deform, when acting force is applied to the middle area, deformation amounts of the middle area of the touch panel and areas with the pressure detection assemblies arranged at four corners are different, pressure detection errors exist, and therefore pressure detection accuracy of the pressure touch panel is affected.
The inventors first conceived to improve the rigidity of the touch panel, and when assembling the pressure touch panel, the rigidity of the touch panel was improved by using a thermosetting adhesive in the middle area of the touch panel.
Then, the inventor changes the idea and considers how to solve the problem of low pressure detection precision of the touch pad without changing the assembling process of the touch pad and ensuring the production efficiency. In view of this, the present application provides a touch panel, a pressure sensor assembly of which is provided with at least three pressure sensors, wherein two pressure sensors are disposed at an end of a touch panel, at least one pressure sensor is disposed at a middle area of the touch panel, the pressure sensors are disposed at the middle area to increase pressure detection positions, thereby improving pressure detection precision of the pressure touch panel, and an elastic member at an edge of the pressure sensor at the middle area can play a role of supporting the touch panel without adding a new assembly process, thereby facilitating to ensure production efficiency.
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
Example one
Fig. 6 is an exploded view of a touch panel according to an embodiment of the present disclosure. With reference to fig. 6, an embodiment of the present application provides a touch pad including a printed circuit board 600, a pressure sensor assembly 1000, and a touch controller 630.
The printed circuit board 600 of the embodiment of the application has the first board surface 601 and the second board surface 602 which are opposite, the first board surface 601 of the printed circuit board 600 is provided with the touch sensing electrode, the touch sensing electrode is used for sensing the touch position of a finger and outputting a corresponding touch sensing signal when the finger touches or presses the touch control board, the touch controller 630 is installed on the second board surface of the printed circuit board 600, and the touch controller 630 is used for determining the touch position of the finger on the touch panel 700 according to the touch sensing signal.
The pressure sensor assembly 1000 is configured to deform under the action of pressure applied when a finger presses the touch pad, and the pressure sensor assembly 1000 outputs a corresponding pressure sensing signal.
The touch controller 630 is mounted and fixed on the second board 602 of the printed circuit board 600, and is electrically connected to the touch sensing electrode and the pressure sensor assembly 1000, and is configured to receive a touch sensing signal from the touch sensing electrode and a pressure sensing signal from the pressure sensor assembly 1000, and determine a touch position of a finger on the touch pad and a pressure applied by the finger according to the touch sensing signal and the pressure sensing signal.
FIG. 1 is an exploded view of a pressure sensor assembly provided in accordance with an embodiment of the present application; FIG. 2 is a top view of a pressure sensor assembly provided in accordance with an embodiment of the present application; FIG. 3 is a side view of a pressure sensor assembly provided in accordance with an embodiment of the present application; fig. 4 is a bottom view of a pressure sensor assembly provided in an embodiment of the present application.
With reference to fig. 1 to 4, the pressure sensor assembly of the embodiment of the present application includes an elastic support 100 and at least three pressure sensors 200, wherein the elastic support 100 is used for supporting the pressure sensors 200, and when the touch pad is pressed, the pressure sensors 200 are driven to elastically deform together, so that the pressure sensors 200 can detect the pressure applied to the touch pad.
The pressure sensor 200 is configured to deform under the action of pressure applied when a finger presses the touch pad, the pressure sensor 200 outputs a corresponding pressure sensing signal, and the pressure sensor 200 is electrically connected to the touch controller 630 to transmit the pressure sensing signal to the touch controller 630. The pressure sensor 200 may be of various types, such as a resistive strain gauge pressure sensor, a semiconductor strain gauge pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. Optionally, the pressure sensor 200 is a piezoresistive pressure sensor, and has a simple structure and high sensitivity. The piezoresistive pressure sensor comprises four variable resistors which are interconnected to form a Wheatstone bridge detection circuit, and the resistance change is converted into a corresponding electric signal (voltage or current) through the detection circuit to be output, so that the process of converting the pressure into the electric signal is completed.
The elastic support 100 of the embodiment of the present application has at least three cantilevers, the at least three cantilevers include two first cantilevers 120 and at least one second cantilever 130, the two first cantilevers 120 are disposed at two opposite ends of the elastic support 100, and the second cantilever 130 is disposed at a middle section of the elastic support 100. The phrase "the second suspension arm 130 is disposed at the middle of the elastic support 100" means that the second suspension arm 130 may be disposed at the center of the elastic support 100, and the position of the second suspension arm 130 may be deviated from the center of the elastic support 100.
In some embodiments, the elastic bracket 100 includes three suspension arms, wherein the first suspension arm 120 is provided in two and is respectively provided at two opposite ends of the elastic bracket 100, and the second suspension arm 130 is provided in one and is symmetrically provided with respect to the center of the elastic bracket 100. In other words, the fixed end of the second cantilever 130 is located at the center of the elastic support 100, and thus the pressure sensor 200 is arranged on the second cantilever 130 at the center of the elastic support 100 while the middle of the touch panel is ensured to have a supporting structure, which facilitates the calculation of the pressure value and is beneficial to simplifying the calculation logic of the pressure value.
Of course, the arrangement positions of the three suspension arms are not limited thereto, for example, the three suspension arms include a first suspension arm 120 arranged at the end of the elastic support 100 and two second suspension arms 130 arranged at the middle of the elastic support 100.
It is understood that the number of the cantilever arms included in the resilient bracket 100 may be more than three, for example, the resilient bracket 100 includes four cantilever arms including two first cantilever arms 120 disposed at opposite end portions of the resilient bracket 100 and two second cantilever arms 130 disposed at a middle portion of the resilient bracket 100.
Each cantilever of the embodiment of the application has a fixed end and a free end, wherein the fixed end of each cantilever is fixed relative to the touch pad when the elastic support 100 is fixed on the electronic device, and one end of each cantilever far away from the elastic support 100 is suspended to form the free end of the cantilever. The free ends of the cantilevers are respectively provided with a pressure sensor 200, which can elastically deform when the touch pad is stressed.
The free end of each cantilever forms an elastic supporting point for supporting the touch panel, for example, the free end of the cantilever is bonded with an elastic connecting member 400, specifically, the elastic connecting member 400 is bonded with the free end of the cantilever, one surface of the elastic connecting member 400 away from the cantilever is bonded with a second board 602 of the printed circuit board 600, the elastic connecting member 400 elastically supports the touch panel by elastically supporting the printed circuit board 600, wherein the touch panel is disposed on one side of the first board 601 of the printed circuit board 600, and provides an input interface for the touch or pressing of a finger. Wherein, the elastic connector 400 may be a connector having elasticity such as a silicone pad. The resilient connection 400 on the first cantilever 120 is located on the side of the pressure sensor 200 on the first cantilever 120 facing away from the second cantilever 130, and the resilient connection 400 on the second cantilever 130 is closer to the free end of the second cantilever 130 than the pressure sensor 200 on the second cantilever 130.
Each pressure sensor 200 is disposed on the free end of each cantilever to detect the pressure applied to the cantilever. The pressure sensors 200 are arranged corresponding to the cantilevers, and one pressure sensor 200 is arranged on each cantilever. Referring to fig. 2, the pressure sensor 200 is adhered to the free end of the cantilever by a first adhesive layer 510, the elastic connector 400 is close to the free end of the cantilever, and the pressure sensor 200 is close to the fixed end of the cantilever.
When the touch pad is pressed, the pressure is transmitted to the cantilever through the elastic connecting piece 400 at the free end of the cantilever, the cantilever generates elastic deformation, so that the pressure sensors 200 adhered to the cantilever generate deformation to detect the pressure applied to the cantilever, the pressure detected by each pressure sensor 200 is calculated by the touch controller 630 on the printed circuit board 600 to determine a pressure value, and when the pressure value reaches a certain threshold value, the pressure value is reported to a system of the electronic equipment to realize the functions of a left key and a right key of the mouse. After the pressure is removed, the cantilever is restored to the original unstressed state by the elastic connection member 400.
In the embodiment of the present application, an angle is formed between the extending direction of the free end of the first cantilever 120 and the extending direction of the free end of the second cantilever 130, and it is understood that the extending direction of the free end of the first cantilever 120 and the extending direction of the free end of the second cantilever 130 are not parallel. Illustratively, the angle between the extending direction of the free end of the first cantilever 120 and the extending direction of the second cantilever 130 is 90 degrees, that is, the extending direction of the free end of the first cantilever 120 is perpendicular to the extending direction of the free end of the second cantilever 130, and referring to fig. 1 and 2, the free end of the first cantilever 120 extends along the X-axis direction, and the free end of the second cantilever 130 extends along the Y-axis direction. The pressure sensed by each pressure sensor 200 can be more uniform, and the touch controller 630 can calculate the pressure detected by each pressure sensor 200 conveniently. Of course, the angle between the extending direction of the free end of the first cantilever 120 and the extending direction of the free end of the second cantilever 130 may also be other angles, such as 45 degrees, etc. The pressure sensor 200 area covering the pressure sensor assembly can be enlarged by the arrangement of the embodiment, so that the pressure sensitive detection range is improved, and the improvement of the pressure detection precision is facilitated.
In some possible embodiments, the elastic support 100 is elongated, and the free end of the first cantilever 120 extends in the same direction as the length of the elastic support 100, and in the directions shown in fig. 1 and 2, the free end of the first cantilever 120 and the length of the elastic support 100 both extend along the X-axis direction; the extending direction of the free end of the second cantilever 130 is perpendicular to the length extending direction of the elastic support 100, and the included angle between the extending direction of the free end of the second cantilever 130 and the extending direction of the free end of the first cantilever 120 is 90 degrees, so that the included angle is formed between the extending direction of the first cantilever 120 and the extending direction of the second cantilever 130, the arrangement of the first cantilever 120 is facilitated, and the processing of the elastic support 100 is facilitated.
Of course, this is not a limitation on the direction in which the free ends of the first and second cantilevers 120, 130 extend. For example, an angle between the extending direction of the first cantilever 120 and the length extending direction of the elastic bracket 100 is 45 degrees, and an angle between the extending direction of the second cantilever 130 and the length extending direction of the elastic bracket 100 is 135 degrees, so that the angle between the extending direction of the second cantilever 130 and the extending direction of the first cantilever 120 is 90 degrees.
Therefore, in the touch panel of the embodiment of the application, the pressure sensor assembly 1000 is used for detecting the pressure applied to the touch panel, the pressure sensor assembly 1000 includes the elastic support 100 and at least three pressure sensors 200, the elastic support 100 has at least three cantilevers, the at least three cantilevers include two first cantilevers 120 and at least one second cantilever 130, the two first cantilevers 120 are disposed at two opposite ends of the elastic support 100, the second cantilever 130 is disposed at the middle section of the elastic support 100, and the free ends of the cantilevers are respectively provided with the pressure sensors 200. Therefore, the first cantilever 120 arranged at the end of the elastic support 100 can elastically support the touch pad, and the second cantilever 130 arranged at the middle section of the elastic support 100 can also elastically support the touch pad, so that the middle area of the touch pad can be supported, the touch pad at least has three supporting positions, the middle area of the touch pad is prevented from sinking to affect the detection precision, and the detection precision is improved. Each pressure sensor 200 is disposed on each cantilever to detect the pressure applied to the cantilever, thereby determining the pressure applied to the touch pad. The pressure sensor assembly of the embodiment of the application increases the number of the pressure sensors 200, increases the positions of pressure detection, and improves the pressure detection precision of the touch pad. Compared with the arrangement of an additional structural support touch pad, the touch pad structure has the advantages that no new assembling process is added, so that the production efficiency can be ensured, and the production cost cannot be additionally increased.
When the touch pad of the embodiment of the present application is mounted on an electronic device, the elastic bracket 100 is fixed on the electronic device, and each suspension arm is suspended relative to the electronic device.
In some of the possible implementations, referring to fig. 1, 3 and 4, the elastic support 100 has a first surface 101 and a second surface 102 arranged oppositely, the pressure sensor 200 and the elastic connector 400 being located on a cantilever of the first surface 101; at least part of the second surface 102 forms a fixed support surface 103 for supporting the pressure sensor assembly, the fixed support surface 103 being illustrated in fig. 4 as being filled with a mesh, the part not filled with the mesh being the free end of the cantilever. The fixing support surface 103 may be connected to a support structure provided on the electronic device, for example, the fixing support surface 103 may be connected to the support structure on the electronic device by using glue, double-sided tape, clamping, screwing, etc. to fix and support the pressure sensor assembly. By the arrangement, the elastic support 100 is favorably improved to be fixed on the electronic equipment to provide a larger mounting surface, and the mode that the elastic support 100 is fixed on the electronic equipment can be more flexible.
With continued reference to fig. 1 and fig. 2, the elastic bracket 100 of the embodiment of the present application is provided with a fixing portion 112, a threaded fixing hole 1121 is formed in the fixing portion 112, and the threaded fixing hole 1121 is used for being fixedly connected with a supporting structure of an electronic device, so as to mount the pressure sensor assembly 1000 in the electronic device. The fixing portion 112 and the two opposite ends of the elastic bracket 100 form a first cantilever 120 therebetween, respectively.
In the embodiment of the present application, the elastic support 100 is a flat plate structure, and the fixing portion 112 is a nut installed on the elastic support 100, so as to facilitate increasing the length of the threaded fixing hole 1121, and further facilitate increasing the reliability and stability of the installation of the pressure sensor assembly 1000.
For example, the elastic bracket 100 is provided with a mounting hole 1122, the mounting hole 1122 is a through hole, a nut is inserted into the mounting hole 1122, the nut may be riveted into the mounting hole 1122, and the nut may also be welded into the mounting hole 1122, for example, by laser spot welding. With such an arrangement, the plate-shaped elastic support 100 can be conveniently processed, and the plate-shaped elastic support 100 can be provided with the longer threaded fixing hole 1121 to improve the stability of the installation of the pressure sensor assembly 1000.
The fixing portion 112 is used for fixing the elastic support 100 to the electronic device, and the fixing portion 112 is located in the fixing support surface 103. In the embodiment of the application, the elastic support 100 is provided with at least one fixing portion 112 at a position close to each cantilever, so that not only the elastic support 100 can be fixed on the electronic device, but also each cantilever can elastically deform relative to the touch pad, and the pressure sensor 200 on the cantilever can detect the pressure applied to the touch pad.
Of course, the elastic support 100 may be provided with a plurality of fixing portions 112 at positions close to the cantilevers, which is beneficial to fixing the fixed ends of the cantilevers and deforming the free ends of the cantilevers, and is beneficial to improving the stability of the pressure sensor assembly 1000 mounted on the electronic device.
The elastic support 100 of the embodiment of the application is provided with the jig positioning hole 113, and when the pressure sensor assembly 1000 is assembled, the jig positioning hole is used for being matched with a jig, so that the assembling precision of the pressure sensor assembly 1000 is improved. The jig positioning hole 113 may be a circular hole, and may be disposed on a side of the elastic bracket 100 away from the first suspension arm 120.
With continued reference to fig. 1 to 4, the touch panel of the embodiment of the present application further includes a flexible circuit board 300, and the flexible circuit board 300 is disposed on the second board surface 602 of the printed circuit board 600. The flexible circuit board 300 includes a flat cable 320, and the flat cable 320 of the flexible circuit board 300 is electrically connected to all the pressure sensors 200 disposed on the first cantilever 120 and the second cantilever 130, respectively. According to the embodiment of the application, the flexible circuit board 300 is arranged and electrically connected with all the pressure sensors 200, so that the signals of the pressure sensors 200 can be conveniently transmitted and bonded. The flexible circuit board 300 is easily adapted to the elastic deformation of the elastic holder 100 and is not easily damaged.
Optionally, two ends of the flexible circuit board 300 are provided with avoidance holes 330, avoiding the fixing portion 112 and the jig positioning hole 113. The avoiding hole 330 may be a rectangular hole, a circular hole, an elliptical hole, etc., and is not limited herein. The flexible circuit board 300 is further provided with a notch 340, and the notch 340 is used for avoiding the fixing portion 112 arranged close to the second cantilever 130.
In the embodiment of the present application, the flexible circuit board 300 and the flat cable 320 electrically connected to the pressure sensor 200 on the first cantilever 120 are S-shaped, so that the bonding position of the pressure sensor 200 can be flexibly adjusted, which is beneficial to improving the deformation of the pressure sensor 200 and the accuracy of the bonding position.
Of course, the flexible circuit board 300 may include a substrate and metal traces disposed in the substrate, and the metal traces are electrically connected to the pressure sensor 200.
The flexible circuit board 300 of the embodiment of the application is provided with the flat cable pin 310, and the flat cable pin 310 is used for being electrically connected with the touch controller 630 so as to transmit the pressure detected by all the pressure sensors 200 to the touch controller 630, so that the touch controller 630 calculates a pressure value according to the pressure detected by each pressure sensor 200, and reports the pressure value to a system of the electronic device when the pressure value reaches a certain threshold value so as to realize the functions of a left button and a right button of the mouse. The second cantilever 130 and the bus bar pin 310 are located on the same side of the elastic support 100. So set up, do benefit to the compactness that improves the touch-control board structure. The second board surface 602 of the printed circuit board 600 is provided with a connection terminal 610, and the connection terminal 610 is electrically connected to the flat cable pin 310, so that the printed circuit board 600 is electrically connected to the flexible circuit board 300.
The elastic support 100 of the embodiment of the application is provided with an avoiding groove 111 for avoiding the flat cable pin 310, and the avoiding groove 111 is arranged on one side edge of the elastic support 100 provided with the second cantilever 130. Referring to fig. 2 and 4, in the orientation shown, the elastic stent 100 has first and second opposing sides that both extend in the X-axis direction and are spaced apart in the Y-axis direction. The second cantilever 130 is disposed on the first side of the elastic support 100, and correspondingly, the avoiding groove 111 is disposed on the edge of the first side. In the embodiment of the application, the avoiding groove 111 is arranged to avoid the flat cable pin 310, so that the typesetting utilization rate of the flexible circuit board 300 is improved; compared with the arrangement that the flat cable pins 310 need to be extended when the avoiding grooves 111 are not arranged, the arrangement can improve the structural compactness of the pressure sensor assembly.
In order to make the two sides of the second cantilever 130 uniformly deformed by force, in the embodiment of the present application, the avoidance grooves 111 are disposed on the two sides of the second cantilever 130, and the avoidance grooves 111 on the two sides of the second cantilever 130 have the same size.
In one possible formation manner of the escape groove 111, referring to fig. 2, one side edge of the elastic bracket 100 where the fixed end of the second suspension arm 130 is provided is recessed inward to form the escape groove 111.
The free end of the second cantilever 130 protrudes out of the notch of the avoiding groove 111, so that the elastic supporting point formed by the free end of the second cantilever 130 protrudes out of the notch of the avoiding groove 111, and the edge which can deviate from the touch pad stretches into the center of the touch pad to support the touch pad elastically, thereby being beneficial to improving the supporting effect of the touch pad. Moreover, the elastic supporting point formed by the free end of the second cantilever 130 and the elastic supporting point formed by the two first cantilevers 120 are not on the same straight line, so as to form a triangular supporting structure, which is beneficial to further improving the supporting effect of the touch pad.
In another possible formation manner of the escape groove 111, a part of the elastic support 100 is bent toward a side where the fixed end of the second suspension 130 is disposed and protrudes from the other part of the elastic support 100 to enclose the escape groove 111. With particular reference to fig. 5, fig. 5 is a top view of a pressure sensor assembly provided in accordance with another embodiment of the present application. Elastic support 100 includes body segment 1113, bending segment 1112 and linkage segment 1111, and wherein body segment 1113 and bending segment 1112 are provided with two sections respectively, and first cantilever 120 is formed respectively to the first end of two body segments 1113, and the second end of body segment 1113 is bent towards the one side that deviates from second cantilever 130 free end and is formed bending segment 1112, and the both ends of linkage segment 1111 are connected with two bending segments 1112 respectively. Wherein, the connection section 1111 can be parallel to the body section 1113, and the bending section 1112 can be perpendicular to the connection section 1111 and the body section 1113, so that the two bending sections 1112 and the one connection section 1111 enclose and form the avoiding groove 111 opened toward one side provided with the free end of the second suspension arm 130. At this time, the second suspension arm 130 is connected to the connection section 1111, and optionally, the second suspension arm 130 is located at a middle position of the connection section 1111.
With continued reference to fig. 5, the free end of the second cantilever 130 is flush with the notch of the relief groove 111. Thus, the wire arranging pin 310 is located between the second cantilever 130 and the bending section 1112, and is completely located in the avoiding groove 111, which is beneficial to further improving the typesetting utilization rate of the flexible circuit board 300. In addition, the elastic supporting point formed by the free end of the second cantilever 130 and the elastic supporting points formed by the free ends of the two first cantilevers 120 are approximately on the same straight line, which is beneficial to improving the balance of supporting the touch pad.
With reference to fig. 2, an edge of the elastic support 100 at the fixed end of the second suspension arm 130 is recessed inward to form an avoiding groove 111, and a dimension D1 of the elastic support 100 corresponding to the avoiding groove 111 along the extending direction (corresponding to the Y-axis direction in the drawing) of the free end of the second suspension arm 130 is greater than or equal to 3 mm. For example, the dimension D1 of the avoidance groove 111 in the extending direction of the free end of the second suspension arm 130 (corresponding to the Y-axis direction in the figure) may be 5 mm. The dimension D2 of the elastic support 100 along the extending direction (corresponding to the Y-axis direction in the figure) of the free end of the second cantilever 130 at other positions is 8-12 mm.
Referring to fig. 5, the flexible holder 100 includes a body segment 1113, two bending segments 1112 and a connecting segment 1111, the two bending segments 1112 and the connecting segment 1111 surround to form an avoiding groove 111, the connecting segment 1111 forms the avoiding groove 111, a dimension D3 along a free end extending direction (corresponding to a Y-axis direction in the drawing) of the second suspension arm 130 is greater than or equal to 3mm, the bending segment 1112 forming the avoiding groove 111, a dimension D4 along a first direction (corresponding to an X-axis direction in the drawing) is greater than or equal to 3mm, wherein the first direction is perpendicular to the extending direction of the free end of the second suspension arm 130.
The elastic support 100 of the embodiment of the present application has a certain elasticity, so that it can be ensured that the elastic support returns to the initial state after being stressed. Optionally, the yield strength of the elastic bracket 100 is greater than or equal to 150 Mpa.
Illustratively, the resilient mount 100 is a stainless steel mount or an aluminum mount, which is low cost.
When the elastic bracket 100 is a stainless bracket, the thickness of the elastic bracket 100 is greater than or equal to 0.4 mm.
When the elastic bracket 100 is an aluminum bracket, the thickness of the elastic bracket 100 is greater than or equal to 0.8 mm. The structural strength of the aluminum bracket is small relative to the stainless steel bracket, so the thickness of the aluminum bracket is generally large to ensure the structural strength of the aluminum bracket.
With reference to fig. 1, the thickness H of the elastic support 100 is a dimension of the elastic support 100 along a second direction (corresponding to the Z-axis direction in the figure), wherein the second direction is perpendicular to the first surface 101 of the elastic support 100.
So set up, under the prerequisite of guaranteeing that elastic support 100 has certain elasticity, have stable structural strength.
Referring to fig. 6, the second surface 602 of the printed circuit board 600 has two opposite long sides, for example, the printed circuit board 600 is a rectangular board. The pressure sensor modules 1000 are provided with at least two, the at least two pressure sensor modules 1000 extend along the long side direction (corresponding to the X-axis direction in the figure) of the second board surface 602 of the printed circuit board 600, and the at least two pressure sensor modules are respectively close to two long side edges of the second board surface 602 of the printed circuit board 600. The touch pad is provided with at least six pressure sensors 200 by arranging at least two pressure sensor assemblies 1000, so that the pressing force applied to the touch pad can be dispersed, and the structural stability of the touch pad can be improved.
In this embodiment, when the printed circuit board 600 is a rectangular board, the pressure sensors 200 of the pressure sensor assembly 1000 are distributed at four vertex angles and at a center of a long edge of the printed circuit board 600, so that uniformity of pressure detection can be improved.
Optionally, referring to fig. 6, the touch panel further includes a reinforcing plate 800, the reinforcing plate 800 is fixedly connected to the second board surface 602 of the printed circuit board 600, for example, the reinforcing plate 800 is adhered to the second board surface 602 through a third adhesive layer 530. The embodiment of the present application is provided with the reinforcing plate 800 to increase the rigidity of the touch panel 100, and reduce deformation and collapse generated when the user presses the touch panel 700.
Alternatively, the reinforcing plate 800 may be an aluminum plate or a steel plate.
When the touch panel is provided with two pressure sensor assemblies 1000, the reinforcing plate 800 is disposed between the two pressure sensor assemblies 1000 to avoid the pressure sensor assemblies 1000.
The reinforcing plate 800 is provided with an avoiding notch 820 to avoid the connection between the connection terminal 610 and the flat cable pin 310.
The reinforcing plate 800 is further provided with an avoiding opening 810, and the avoiding opening 810 can be an opening with any shape such as a rectangular opening, a circular opening, and the like, and is used for avoiding electronic devices of the printed circuit board 600, such as the touch controller 630.
Illustratively, the printed circuit board 600 is provided with an actuator 620, and the touch controller 630 is mounted on the second board 602 of the printed circuit board 600 and electrically connected to the touch sensing electrode and the pressure sensor 200 through a connection line of the printed circuit board 600, and is configured to provide a driving signal to the touch sensing electrode to drive capacitive touch detection, and to receive a touch sensing signal and a pressure sensing signal output by the touch sensing electrode and the pressure sensor 200 when a finger presses on the touch pad, and determine finger position information and a pressure applied by the finger based on the touch sensing signal and the pressure sensing signal. Also, the touch controller 630 may be electrically connected to the actuator 620, and further configured to drive the actuator 620 for vibration feedback in response to the detected magnitude of the pressure. In a specific embodiment, the touch controller 630 may be a touch chip integrating pressure detection and touch position detection, and may also include two separately disposed pressure detection chips for detecting pressure and touch position detection chips for detecting touch position. Wherein the actuator 620 may be a linear motor.
Example two
Fig. 7 is an exploded view of a pressure touch device according to an embodiment of the present disclosure; fig. 8 is a bottom view of a pressure touch device according to an embodiment of the present disclosure.
With reference to fig. 7 and fig. 8, an embodiment of the present application further provides a pressure touch device, including: a touch panel 700, a printed circuit board 600, and a pressure sensor assembly 1000. The touch panel 700 is a cover of a pressure touch device, and is used for providing an input interface for touching or pressing by a finger. The touch panel 700 may be an exterior decorative plate, and glass, a polyester film, or the like may be used for the touch panel 700. The touch panel 700 is attached to the printed circuit board 600, for example, the touch panel 700 is attached to the first plate surface 601 of the printed circuit board 600 by the second adhesive layer 520.
The pressure touch device provided in the second embodiment of the present application is different from the touch pad provided in the first embodiment of the present application in that the pressure touch device provided in the second embodiment of the present application is further provided with a touch panel 700, and other structures may refer to the first embodiment, and are not described herein again.
Since the pressure touch device provided in the embodiment of the present application includes the pressure sensor assembly 1000 in the first embodiment, the pressure touch device in the embodiment of the present application also has the same advantages as the touch pad in the first embodiment, and thus, the description thereof is omitted.
EXAMPLE III
Fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
With reference to fig. 9, an embodiment of the present application further provides an electronic device 3000, which includes: a housing 3001 and the touch pad 2000 of the first embodiment, wherein the housing 3001 is provided with a supporting structure; the resilient mount 100 of the pressure sensor assembly 100 of the touch pad 2000 is mounted to a support structure. The support structure may be a support table, a support column, or the like provided on the housing 3001. The structure, function and effect of the touch pad 2000 of the present embodiment are the same as those of the first embodiment, and specific reference may be made to the first embodiment, which is not repeated herein.
Alternatively, the electronic device 3000 includes a housing 3001 and the pressure touch device of the second embodiment, wherein the housing 3001 is provided with a supporting structure; the elastic support 100 of the pressure sensor assembly 1000 of the pressure touch device is mounted on a support structure. The structure, function, and effect of the pressure touch device of this embodiment are the same as those of the above embodiment, and reference may be made to the above embodiment two specifically, which is not described herein again.
The technical scheme of the embodiment of the application can be applied to various electronic devices, for example, portable or mobile computing devices such as smart phones, notebook computers, tablet computers, game devices and the like, and other electronic devices such as electronic databases, automobiles, and Automatic Teller Machines (ATMs) of banks. However, the present embodiment is not limited thereto.
In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (19)

1. A touch panel, comprising: a printed circuit board, a pressure sensor assembly and a touch controller;
the printed circuit board is provided with a first board surface and a second board surface which are opposite, and the first board surface of the printed circuit board is provided with a touch sensing electrode which is used for sensing the touch position of a finger and outputting a corresponding touch sensing signal when the finger touches or presses the touch control board;
the pressure sensor assembly is arranged on the second board surface of the printed circuit board and comprises an elastic support and at least three pressure sensors; the elastic support is provided with at least three cantilevers, the at least three cantilevers comprise two first cantilevers and at least one second cantilever, the two first cantilevers are respectively arranged at two opposite end parts of the elastic support, and the second cantilever is arranged at the middle section of the elastic support; the free end of each cantilever is respectively provided with the pressure sensor, the pressure sensors are used for deforming under the action of pressure applied when the finger presses the touch pad, and the pressure sensors output corresponding pressure sensing signals; the free end of each cantilever is respectively bonded with an elastic connecting piece, and one surface of each elastic connecting piece, which is far away from the cantilever, is bonded with the second board surface of the printed circuit board;
the touch controller is fixedly installed on the second board surface of the printed circuit board, electrically connected with the touch sensing electrode and the pressure sensor, and used for determining the touch position of the finger on the touch pad and the pressure applied by the finger from the touch sensing signal and the pressure sensing signal received by the touch sensing electrode and the pressure sensor.
2. The trackpad of claim 1, wherein the fixed end of the second cantilever is located at the center of the resilient support.
3. The touch pad of claim 1, wherein the elastic support is in a strip shape, and the extending direction of the free end of the first cantilever is the same as the length extending direction of the elastic support; and
the extension direction of the free end of the second cantilever is perpendicular to the length extension direction of the elastic support.
4. The touch pad of claim 1, further comprising:
the flexible circuit board is arranged on a second board surface of the printed circuit board and comprises a flat cable, and the flat cable of the flexible circuit board is electrically connected with the pressure sensors arranged on the first cantilever and the second cantilever respectively; the flexible circuit board is electrically connected with the flat cable arranged on the first cantilever through the pressure sensor, and the flat cable is S-shaped.
5. The touch pad of claim 4, wherein the flexible circuit board is provided with flex cable pins; the second cantilever and the flat cable pin are positioned on the same side of the elastic support; and
the elastic support is provided with an avoidance groove for avoiding the flat cable pins, and the avoidance groove is formed in the edge, at one side, of the elastic support, provided with the second cantilever.
6. The touch panel of claim 5, wherein one side edge of the elastic support where the fixed end of the second cantilever is disposed is recessed inward to form the relief groove; and
the free end of the second cantilever protrudes out of the notch of the avoiding groove.
7. The touch pad of claim 5, wherein a portion of the elastic support is bent away from a side where the fixed end of the second cantilever is disposed and protrudes from another portion of the elastic support to form the avoiding groove; and
the free end of the second cantilever is flush with the notch of the avoiding groove.
8. The touch panel according to claim 6 or 7, wherein the elastic support forming the avoiding groove has a dimension in the extending direction of the second cantilever that is greater than or equal to 3 mm.
9. The touch panel of any one of claims 1-7, wherein the yield strength of the resilient support is greater than or equal to 150 Mpa;
the elastic support is a stainless steel support, the thickness of the elastic support is greater than or equal to 0.4mm, or the elastic support is an aluminum support, and the thickness of the elastic support is greater than or equal to 0.8 mm.
10. The touch pad of any one of claims 1-7, wherein the second surface of the printed circuit board has two opposite long edges; the pressure sensor subassembly is provided with at least two, at least two the pressure sensor subassembly is followed the long edge direction of printed circuit board's second face extends, at least two the pressure sensor subassembly is close to respectively in two long edge margins of printed circuit board's second face.
11. The touch pad of any one of claims 1-7, further comprising:
the reinforcing plate is fixedly connected with the second board surface of the printed circuit board;
and the actuator is mounted on the second board surface of the printed circuit board and is electrically connected with the touch controller, and is used for responding to the pressure applied by the finger to carry out vibration feedback.
12. A pressure touch device, comprising:
a touch panel for providing an input interface for a touch or a press of a finger;
the touch sensing device comprises a printed circuit board, a touch sensing circuit and a touch sensing circuit, wherein the printed circuit board is provided with a first board surface and a second board surface which are opposite to each other;
the pressure sensor assembly is arranged on the second board surface of the printed circuit board and comprises an elastic support and at least three pressure sensors; the elastic support is provided with at least three cantilevers, the at least three cantilevers comprise two first cantilevers and at least one second cantilever, the two first cantilevers are respectively arranged at two opposite end parts of the elastic support, and the second cantilever is arranged at the middle section of the elastic support; the free end of each cantilever is respectively provided with the pressure sensor, the pressure sensors are used for deforming under the action of pressure applied when the fingers press the touch panel, and the pressure sensors output corresponding pressure sensing signals; and the free end of each cantilever is respectively bonded with an elastic connecting piece, and one surface of each elastic connecting piece, which is deviated from the cantilever, is bonded with the second board surface of the printed circuit board.
13. The pressure touch device of claim 12, wherein the fixed end of the second cantilever is located at the center of the elastic support.
14. The pressure touch device according to claim 12, wherein the elastic support is elongated, and the extending direction of the free end of the first cantilever is the same as the length extending direction of the elastic support; and
the extension direction of the free end of the second cantilever is perpendicular to the length extension direction of the elastic support.
15. The pressure touch device of claim 14, further comprising:
the flexible circuit board is arranged on a second board surface of the printed circuit board and comprises a flat cable, and the flat cable of the flexible circuit board is electrically connected with the pressure sensors arranged on the first cantilever and the second cantilever respectively; the flexible circuit board is electrically connected with the flat cable arranged on the first cantilever through the pressure sensor, and the flat cable is S-shaped.
16. The pressure touch device according to claim 15, wherein the flexible circuit board is provided with flex cable pins; the second cantilever and the flat cable pin are positioned on the same side of the elastic bracket; and
the elastic support is provided with an avoiding groove for avoiding the flat cable pins, and the avoiding groove is formed in the edge, on one side, of the elastic support, provided with the second cantilever.
17. The pressure touch device of claim 16, wherein an edge of the elastic support at the fixed end of the second cantilever is recessed inward to form the avoiding groove; and
and the free end of the second cantilever protrudes out of the notch of the avoiding groove.
18. The pressure touch device according to claim 16, wherein a portion of the elastic support is bent toward a side where the fixed end of the second cantilever is disposed and protrudes from the elastic support to form the avoiding groove; and
the free end of the second cantilever is flush with the notch of the avoiding groove.
19. An electronic device, comprising:
a housing having a support structure disposed thereon;
the trackpad of any one of claims 1 to 11, the resilient support of the pressure sensor assembly of the trackpad being mounted to the support structure; alternatively, the pressure touch device of any of claims 12-18, wherein the resilient mount of the pressure sensor assembly of the pressure touch device is mounted to the support structure.
CN202221460179.5U 2022-06-09 2022-06-09 Touch pad, pressure touch device and electronic equipment Active CN217467633U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221460179.5U CN217467633U (en) 2022-06-09 2022-06-09 Touch pad, pressure touch device and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221460179.5U CN217467633U (en) 2022-06-09 2022-06-09 Touch pad, pressure touch device and electronic equipment

Publications (1)

Publication Number Publication Date
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Family Applications (1)

Application Number Title Priority Date Filing Date
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