CN212322232U - A touch module and an electronic device - Google Patents

Abstract

The utility model provides a touch module and electronic equipment. The touch module comprises a main control board assembly, a touch panel and at least one pressure sensor, wherein the main control board assembly comprises a control circuit part, a supporting part and at least one bridging part, the supporting part is located on at least one side of the control circuit part, the bridging part is respectively connected with the control circuit part and the supporting part, the touch panel is arranged on one side, along the thickness direction, of the control circuit part, the pressure sensor is arranged on one side, deviating from the touch panel, of the corresponding bridging part and is connected with the control circuit part, and pressure signals of the touch panel are detected. The utility model discloses a set up a plurality of supporting parts and a plurality of bridge portion in control circuit portion both sides, set up touch panel in the top of control circuit portion, set up pressure sensor in the below of bridge portion and respond to the small bending deformation in touch panel surface to detect touch panel's pressure signal has replaced two keys of an organic whole of present mainstream, has still avoided the insensitivity defect of touch panel peripheral zone button.

Description

A touch module and an electronic device

technical field

The utility model belongs to the technical field of touch display, and particularly relates to a touch control module and an electronic device.

Background technique

The touch module is an input device widely used in notebook computers. It collects signals through the pressing force of the finger, and uses the sliding operation of the finger to move the cursor. It is an input device that usually uses a mechanical click structure. It is implemented on the touchpad to realize the function of button click of the mouse. At present, touch modules usually include resistive type, capacitive type, infrared type, surface acoustic wave type, electromagnetic type, and vibration wave induction type.

The traditional notebook touchpad has changed from the early standard structure of three upper buttons, tactile area and lower left and right buttons to the current mainstream two buttons. There is a click-like structure below, which makes it almost impossible to make a click on the side close to the keyboard. In addition, the existing touchpad key structure has many parts and corresponding assembly gaps, which is not conducive to maintenance, and the mechanical click structure also affects the service life of the keys.

In addition, the current touch modules are equipped with touch electrode structures arranged in an array in the display area, and only a plurality of metal leads are arranged in the frame area to transmit signals to the touch driving electrodes or touch sensing electrodes, and the frame area is Due to the large number of metal traces, the area of the frame is getting larger and larger, and since there is no touch electrode structure with touch function in the frame area, touch cannot be realized in the frame area, which belongs to the touch blind area, which reduces the touch Control sensitivity and affect the user's use effect. In addition, in some touch modules, a plurality of through holes are also provided in the key area corresponding to the sensor layer disposed therein for sensing touch.

Therefore, based on the above technical problems, it is necessary to propose a new touch module, which is manufactured in an integrated manner, without redundant openings and without mechanical pressing. Sensitivity and Accuracy.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art, and provides a touch control module and an electronic device

One aspect of the present invention provides a touch module, comprising:

a main control board assembly, the main control board assembly comprising a control circuit part, a support part located on at least one side of the control circuit part, and at least one bridge part respectively connecting the control circuit part and the support part;

a touch panel, the touch panel is arranged on one side of the control circuit portion along its thickness direction;

At least one pressure sensor, the pressure sensor is disposed on the side of the corresponding bridge portion away from the touch panel, and is connected with the control circuit portion to detect the pressure signal of the touch panel.

Optionally, the main control board assembly includes a plurality of support parts and a plurality of bridge parts, and the touch module includes a plurality of pressure sensors; wherein,

The plurality of support parts are symmetrically distributed on both sides of the control circuit part along the length direction thereof, and each of the support parts is connected to the control circuit part through a plurality of the bridge parts;

One of the pressure sensors is correspondingly disposed on one side of each of the bridges facing away from the touch panel.

Optionally, the pressure sensor is provided with a pressure sensing portion and a plurality of connecting portions on a side facing the bridge portion; wherein,

the pressure sensing part is located in the central area of the pressure sensor to detect the pressure signal of the touch panel;

The plurality of connection parts are located at the edge region of the pressure sensor, and are respectively connected to the control circuit part and the support part.

Optionally, the connection part adopts a pad connection part.

Optionally, the pressure sensor is further provided with at least one first stress concentration groove running through its thickness, and the first stress concentration groove extends inward from the end of the pressure sensor.

Optionally, the bridge portion is provided with at least one second stress concentration groove extending through the thickness of the bridge portion, and the second stress concentration groove extends inward from the end of the bridge portion.

Optionally, the center of the first stress concentration groove coincides with the center line of the pressure sensing portion, and/or,

The center of the second stress concentration groove coincides with the center line of the first stress concentration groove.

Optionally, the pressure sensor is symmetrically provided with two first stress concentration grooves; and/or, the bridge portion is symmetrically provided with two second stress concentration grooves.

Optionally, the support portion is provided with a plurality of mounting holes.

Another aspect of the present invention provides an electronic device including the touch module described above.

The utility model provides a touch control module, comprising a main control board assembly, a touch panel, and at least one pressure sensor, wherein the main control board assembly includes a control circuit part, a support part located on at least one side of the control circuit part, and a control part respectively connected to the control circuit part. The circuit part and at least one bridge part of the support part, the touch panel is arranged on one side of the control circuit part along its thickness direction for the user to touch and press it, and the pressure sensor is arranged on the corresponding bridge part away from the touch One side of the panel is connected with the control circuit to detect the pressure signal of the touch panel, and the mechanical button function of the traditional touch panel can be realized without mechanical pressing, and the touch module of the present invention adopts an integral type Manufactured without redundant openings, with high sensitivity and accuracy.

Description of drawings

1 is a schematic diagram of the overall structure of a touch module according to an embodiment of the present invention;

2 is a top view of a touch module according to another embodiment of the present invention;

3 is a schematic structural diagram of a main control board assembly in a touch module according to another embodiment of the present invention;

4 is a schematic structural diagram of a pressure sensor in a touch module according to another embodiment of the present invention.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

In some descriptions of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" or "fixed" and other similar words are not limited to physical or mechanical connections, but are An electrical connection may be included, whether direct or indirect through an intermediary medium, and may be an internal communication between two elements or an interaction relationship between the two elements. Also, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and other indicated orientation or positional relationships are based on the attached The orientation or positional relationship shown in the figure is only used to represent the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

As shown in FIGS. 1 to 4 , an aspect of the present invention provides a touch module 100 including a main control board assembly 110 , a touch panel 120 , and at least one pressure sensor 130 , wherein the main control board assembly 110 includes The control circuit part 111 , the support part 112 located on at least one side of the control circuit part 111 , and at least one bridge part 113 respectively connecting the control circuit part 111 and the support part 112 , the touch panel 120 is disposed on a part of the control circuit part 111 along its thickness direction. side (above the control circuit part) for the user to touch and press it, and the pressure sensor 130 is disposed on the side of the corresponding bridge part 113 away from the touch panel 120 (below the bridge part), and is connected with the control circuit part 111 is connected to detect the pressure signal of the touch panel 120 .

It should be noted that the control circuit part in this embodiment, the support part and the bridge part located on both sides of the control circuit part can be set independently, and they can be formed into a main control board assembly through a certain connection method. Of course, the above three parts can also be combined. Parts are integrally formed to form an integral main control board assembly. For those skilled in the art, specific settings can be made according to actual needs, which are not specifically limited.

In the touch module provided in this embodiment, support parts are arranged on both sides of the control circuit part, and the two are connected by a bridge part, the pressure sensor is arranged under the bridge part, and the touch panel is arranged on the side of the control circuit part. Above, in this way, the lower position of the touch panel is in a floating state to sense a larger amount of deformation, which is convenient for detecting the pressure signal, and the touch panel is pressed by touch to transmit the pressure signal to the pressure sensor to detect the pressure signal of the touch panel without mechanical The mechanical key function of the traditional touch panel can be realized by pressing the touch panel of the present invention, and the touch module of the present invention is integrally manufactured, without redundant openings, and has high sensitivity and accuracy.

It should be noted that this embodiment does not specifically limit the setting positions of the support portion and the bridge portion, which can be set according to actual needs. For example, in some embodiments, when the control circuit portion is square or rectangular, the support portion, The bridging portion is arranged on either side, or on two symmetrical sides. Of course, a supporting portion and a plurality of bridging portions can also be arranged on all sides. And, in other embodiments, when the control circuit portion is circular, the support portion and the bridge portion can be arranged around the control circuit portion at equal intervals, and correspondingly, the pressure sensors are respectively arranged below the bridge portion.

Exemplarily, as shown in FIG. 2 and FIG. 3 , the main control board assembly 110 of this embodiment includes a plurality of support portions 112 and a plurality of bridge portions 113 , and the touch module 100 includes a plurality of pressure sensors 130 . The plurality of support portions 112 are symmetrically distributed on both sides of the control circuit portion 111 along the length direction thereof, and each support portion 112 is connected to the control circuit portion 111 through a plurality of bridge portions 113 . A pressure sensor 130 is correspondingly disposed on the side of each bridge portion 113 facing away from the touch panel 120 . That is to say, the support part and the control circuit part are connected by bridge parts, and a corresponding pressure sensor is arranged under each bridge part to sense the touch pressure of the touch panel located above the control circuit part.

It should be noted that this embodiment also does not specifically limit the number of bridge parts connecting the support part and the control circuit part and the number of pressure sensors. For example, when two support parts are symmetrically arranged on both sides of the control circuit part, the The length of the support portion is flush with both sides of the control circuit portion, and two, three or more bridge portions may be provided between each support portion and the control circuit portion, and a pressure sensor may be provided under the corresponding bridge portion. That is to say, one support part may correspond to two or more bridge parts, so as to connect the support part and the control circuit part.

Exemplarily, as shown in FIG. 2 and FIG. 3 , two bridge parts 113 and one support part 112 are respectively provided on both sides of the control circuit part 111 along its length direction, and one end of the two bridge parts 113 is connected to the support parts respectively. Both ends of 112 and the other end are connected to the control circuit part 111 to form the main control board assembly 110 . The structure of this embodiment is equivalent to forming a pressure sensing area around the touch panel to detect the pressure on the touch panel, without redundant openings and without mechanical pressing, the mechanical button function of the traditional touch panel can be realized.

Specifically, as shown in FIG. 4 , the pressure sensor 130 is provided with a pressure sensing portion 131 and a plurality of connecting portions 132 on a side facing the bridge portion 113 . The pressure sensing part 131 is located in the central area of the pressure sensor 130 to detect the pressure signal of the touch panel. The plurality of connection parts 132 are located at the edge region of the pressure sensor 130 and connect the control circuit part 111 and the support part 112 respectively.

It should be noted that the number of connecting parts is not specifically limited, and one connecting part or two connecting parts, four connecting parts or more connecting parts can be provided on both sides of the pressure sensor, as long as the part and the control circuit part can be connected. For example, please refer to FIG. 4 , in this embodiment, four connecting portions 132 are respectively disposed on the edge region of the pressure sensor 130 facing the bridge portion 113 . In addition, the connection mode of these connection parts to the support part and the control circuit part is not specifically limited. For example, the present embodiment adopts the pad connection part to weld the pressure sensor on the main control board assembly to realize the connection between the support part and the control circuit part. Connection of the control circuit section.

Optionally, in order to increase the deformation of the pressure sensor to increase the amount of signal, as shown in FIG. 3 and FIG. 4 , at least one first stress concentration groove 133 is further provided on the pressure sensor 130 through its thickness. The stress concentration groove 133 extends inward from the end of the pressure sensor 130 . Also, the bridge portion 113 may be provided with at least one second stress concentration groove 113 a extending through the thickness of the bridge portion 113 , and the second stress concentration groove 113 a extends inward from the end of the bridge portion 113 .

Further, in some embodiments, the center of the first stress concentration groove 133 is arranged to coincide with the center line of the pressure sensing portion 131 , and/or the center of the second stress concentration groove 113 a and the center of the first stress concentration groove 133 Lines overlap. That is to say, the centerlines of the first stress concentration groove, the second stress concentration groove and the stress sensing portion are all coincident, so as to increase the deformation of the pressure sensor, thereby increasing the signal quantity.

It should be noted that, in this embodiment, the number and shape of the first stress concentration groove and the second stress concentration groove are not specifically limited. For example, each of the above stress concentration grooves can be arranged in U-shape, V-shape, rectangle or other slot forms that are easy to generate stress concentration, and those skilled in the art can choose according to actual needs. Exemplarily, as shown in FIGS. 3 and 4 , two U-shaped first stress concentration grooves 133 are symmetrically arranged on the pressure sensor 130 , and/or two U-shaped second stress concentration grooves 133 are symmetrically arranged on the bridge portion 113 . The stress concentration groove 113a, and the first stress concentration groove 133 coincides with the second stress concentration groove 113a, so that stress concentration grooves are provided on both sides of the pressure sensing portion along its width direction, so that the contact The control module has higher sensitivity.

It should still be noted that this embodiment does not specifically limit the type of the pressure sensor, and a piezoresistive pressure sensor, a piezoelectric pressure sensor, a strain gauge pressure sensor, etc. may be used. Specifically, this embodiment uses a piezoresistive pressure sensor. , which has high precision and good linearity characteristics. It should be understood that the piezoresistive pressure sensor can adopt a single-bridge, half-bridge or full-bridge Wheatstone bridge structure. For those skilled in the art, it can be Choose according to actual needs.

Furthermore, in order to install the touch module of this embodiment on the electronic device, a plurality of mounting holes 114 may be provided on the support portion 112 to be fixed on the bottom case of the electronic device through the mounting holes 114 . Of course, mounting posts may also be provided in each mounting hole, and the touch module may be fixed on the electronic device through the mounting posts.

It should be noted that the number and location of the mounting holes are not specifically limited. For those skilled in the art, specific settings can be made according to actual needs. For example, please refer to FIG. 2 and FIG. 3 . The ends are provided with two mounting holes, which correspond to the bridging portions 113 on both sides in sequence, so that the touch module of this embodiment has better stability.

Another aspect of the present invention provides an electronic device, including the touch module 100 described above, the specific structure of which is referred to the above description, and will not be repeated here.

It should be noted that the electronic device in this embodiment may include devices such as a mobile phone or a notebook computer. Taking a mobile phone as an example, the touch module may be a screen of a mobile phone. Furthermore, taking a notebook computer as an example, the touch module It can be a touchpad in the computer keyboard area. Of course, the touch module can also be set in other electronic devices to sense the deformation of the touch panel surface and detect the pressure signal on the touch panel surface. The size of the signal to extend some functions of the laptop touchpad, such as gaming, design, etc.

The present invention provides a touch control module and an electronic device. Compared with the prior art, the present invention has the following beneficial effects: the touch control module of the present invention can provide a plurality of supporting parts and a plurality of supporting parts on both sides of the control circuit part. A bridge part is arranged, the touch panel is arranged above the control circuit part, and a plurality of pressure sensors are arranged under the bridge parts to sense the slight bending deformation of the touch panel surface to detect the normal pressure signal of the touch panel, instead of At present, the mainstream one-piece two-button, the realization of the button function mostly adopts the "springboard" mechanical structure, and also avoids the defect of insensitive buttons in the peripheral area of the touch panel. In addition, the pressure sensor of the present invention is arranged below the bridge structure, so that the lower area of the touch panel is in a suspended state, which is convenient for detecting the bending deformation of the touch panel under pressure, and has high sensitivity and accuracy. In addition, the touch module of the present invention is integrally manufactured, without redundant openings, and without mechanical pressing, the mechanical button function of the traditional touch panel can be realized, and has the advantages of long life cycle use, waterproof and dustproof, simple structure and convenient Maintenance advantages. In addition, the touch module of the present invention can effectively expand the application function range of the electronic device.

It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (10)

1. A touch module, characterized in that, comprising: a main control board assembly, the main control board assembly comprising a control circuit part, a support part located on at least one side of the control circuit part, and at least one bridge part respectively connecting the control circuit part and the support part; a touch panel, the touch panel is arranged on one side of the control circuit portion along its thickness direction; At least one pressure sensor, the pressure sensor is disposed on the side of the corresponding bridge portion away from the touch panel, and is connected with the control circuit portion to detect the pressure signal of the touch panel. 2 . The touch module according to claim 1 , wherein the main control board assembly comprises a plurality of supporting parts and a plurality of bridge parts, and the touch module comprises a plurality of pressure sensors; wherein, 3 . The plurality of support parts are symmetrically distributed on both sides of the control circuit part along the length direction thereof, and each of the support parts is connected to the control circuit part through a plurality of the bridge parts; One of the pressure sensors is correspondingly disposed on one side of each of the bridges facing away from the touch panel. 3 . The touch module according to claim 2 , wherein a pressure sensing portion and a plurality of connecting portions are provided on a side of the pressure sensor facing the bridge portion; wherein, the pressure sensing part is located in the central area of the pressure sensor to detect the pressure signal of the touch panel; The plurality of connection parts are located at the edge region of the pressure sensor, and are respectively connected to the control circuit part and the support part. 4 . The touch module according to claim 3 , wherein the connecting portion adopts a pad connecting portion. 5 . 5 . The touch module according to claim 3 , wherein the pressure sensor is further provided with at least one first stress concentration groove penetrating through its thickness, and the first stress concentration groove is formed from the pressure sensor. 6 . The ends extend inward. 6 . The touch module according to claim 5 , wherein the bridge portion is provided with at least one second stress concentration groove penetrating through its thickness, and the second stress concentration groove is formed from the bridging portion. 7 . The ends extend inward. 7 . The touch module according to claim 6 , wherein the center of the first stress concentration groove coincides with the center line of the pressure sensing portion, and/or, The center of the second stress concentration groove coincides with the center line of the first stress concentration groove. 8 . The touch module according to claim 7 , wherein two first stress concentration grooves are symmetrically arranged on the pressure sensor; and/or two second stress concentration grooves are arranged symmetrically on the bridge portion. 9 . Stress Concentration Slots. 9 . The touch module according to claim 1 , wherein a plurality of mounting holes are provided on the support portion. 10 . 10. An electronic device, comprising the touch control module according to any one of claims 1 to 9.

Images