CN210453979U

CN210453979U - Flexible touch device

Info

Publication number: CN210453979U
Application number: CN201921358668.8U
Authority: CN
Inventors: 王强; 蔡莉媛; 许鹏俊
Original assignee: Minjiang University
Current assignee: Minjiang University
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-05
Anticipated expiration: 2029-08-21

Abstract

The utility model relates to a flexible touch device, flexible touch device comprises last conducting layer, middle isolation layer and lower conducting layer, a serial communication port, go up the conducting layer and make by arranging two metal conductor that are parallel to each other and equal with corresponding conducting layer length of side on the composite conductive material that has prepared respectively with lower conducting layer, it is perpendicular with two sets of metal conductor wiring directions in the conducting layer down to go up the conducting layer, metal conductor is fixed by the winding of yarn equidistance composite conductive material is last to cover with insulating material, be equipped with netted isolation layer between the upper and lower layer, go up conducting layer, middle isolation layer and lower conducting layer and pile up the back in proper order, two sets of metal conductor are introduced and weld on the touch-sensitive screen controller chip according to the order. The beneficial effects of the utility model are that conveniently carry, the response is sensitive, stability is stronger.

Description

Flexible touch device

Technical Field

The utility model relates to an intelligence textile sector especially relates to a flexible touch device.

Background

The intelligent textile is a novel functional textile material integrating the performance and the practical function of woven fabrics and knitted fabrics. The insight of many textile studies has been that its silhouette appears. On the basis of the concept of bionics, the bionic robot has the function of simulating a life system and can sense and respond to a changing environment. After more than 20 years of research, intelligent textiles have become the basis of new fashion philosophy in the 21 st century and play an important role in the fields of electronics, electrics, medical health care or military textiles.

Sensor research applications in electric smart textile-based research, mainly made of flexible materials, such as conductive polymers, conductive fibers or conductive fabrics. The sensor can monitor the change of signals such as strain, pressure, displacement, temperature, acid and alkali and the like, can timely respond, and can be widely applied to the fields of medical health monitoring, communication, sports, aerospace and the like. People have higher and higher requirements on the comfort and functionality of intelligent clothes, and the intelligent clothes are required to integrate multiple functions of light weight, washing resistance, wear resistance and ventilation. These new requirements also mean that the physiological monitoring sensors serve more than just a specific environment and population.

While intelligent textile materials have been studied quite intensively and with much success, there are still many problems and challenges in the development process_。Due to the defects of professional experimental equipment and detection equipmentThe research on the intelligent textile material is limited, the test and research on the intelligent textile material are limited by the existing experimental instruments and equipment, and the harmonious and unified problem of softness and resilience of the quality of the intelligent textile material becomes a difficult problem. Because human skin needs to be simulated, the intelligent textile material is required to have high flexibility and elasticity.

Disclosure of Invention

An object of the utility model is to provide a flexible touch device, interface impedance when utilizing the material of this intelligent weaving of preparation and skin contact changes and responds to and the repayment, will realize the response and the interdynamic of the mechanics response of intelligent fabrics and human activity through the virtual reality system.

In order to achieve the above purpose, the technical scheme of the utility model is that: a flexible touch device is composed of an upper conducting layer, a middle isolating layer and a lower conducting layer and is characterized in that the upper conducting layer and the lower conducting layer are respectively made by arranging two metal conducting wires which are parallel to each other and have the same side length as the corresponding conducting layer on a prepared composite conducting material, the wiring directions of the two groups of metal conducting wires in the upper conducting layer and the lower conducting layer are perpendicular to each other, the metal conducting wires are wound and fixed on the composite conducting material at equal intervals by yarns and are covered by an insulating material, and after the upper conducting layer, the middle isolating layer and the lower conducting layer are sequentially stacked, the two groups of metal conducting wires are led in and sequentially welded on a touch screen controller chip.

Further, the composite conductive material is a carbon black and silica gel composite conductive material.

Further, the intermediate isolation layer is a mesh fabric.

Furthermore, the metal wire is formed by twisting four copper core wires into one strand.

The beneficial effects of the utility model are that conveniently carry, the response is sensitive, stability is stronger.

Furthermore, the middle isolation layer is also provided with a mesh isolation layer for isolating the upper conducting layer from the lower conducting layer.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a circuit wiring diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

The structure of the flexible touch device of the present invention is shown in fig. 1. The flexible touch device is composed of an upper conductive layer 1, a middle isolation layer 2 and a lower conductive layer 3. Copper wires are arranged on the prepared carbon black and silica gel composite conductive material with the size of A4 paper (297mm multiplied by 210mm) on the upper conductive layer 1 and the lower conductive layer 3, so that the length of each copper wire is equal to the side length of the corresponding carbon black and silica gel composite conductive material, and the copper wires are led out. And the copper wire is fixed by surrounding with a common sewing thread and covered with a black insulating tape, so that the problem that the position sensing accuracy is influenced by dislocation of the copper wire due to movement of the touch pad is avoided. And the voltage equipotential lines on the conducting layer are ensured to be equidistant straight lines which are uniformly arranged after the conducting layer is electrified to a certain extent. The middle isolation layer 2 is provided with a mesh isolation layer for isolating the upper layer from the lower layer, and the hole fabric is moderate in thickness, so that better elasticity is provided, the elastic recovery of the touch pad is facilitated, and the upper conductive layer and the lower conductive layer are isolated. And the distribution rule of the hole fabric pieces is regular, the holes are uniformly distributed and have proper sizes, so that a contact channel is provided for the upper conductive layer 1 to contact the lower conductive layer 3 when the upper conductive layer is touched.

The material of the intermediate isolation layer 2 needs to have better elastic resilience, and can be a reticular silica gel isolation layer, a reticular fabric and the like. Whatever the material, the pores of the spacer mesh are preferably 2mm by 2 mm. If the pore is too small, the upper conductive layer 1 cannot well contact the lower conductive layer 3 during touch, so that the response sensitivity of the flexible position sensing device is not as expected; if the pore is too large, the upper and lower conductive layers will be in direct contact, and the sensing ability is lost. The utility model adopts the mesh fabric with the aperture of 2mm multiplied by 2mm as the middle isolation layer 2 of the flexible position sensing device.

The principle that flexible touch device's circuit wiring adopted four-wire resistance-type touch-sensitive screen is shown in fig. 2, goes up conducting layer 1 and conducting layer 3's manufacturing method for adopting the fixed method of yarn equidistance winding on the carbon black silica gel composite conductive material of A4 paper size (297mm x 210mm), twists four copper core wires into one, fixes the copper core wire winding with 2cm size equidistance with the yarn on the carbon black silica gel composite conductive material. The two metal wires which are parallel to each other and have the same side length with the corresponding conductive layer are arranged in the upper conductive layer 1 and the lower conductive layer 3, and the wiring directions of the two groups of metal wires in the upper conductive layer 1 and the lower conductive layer 3 are vertical. And placing the intermediate isolation layer 2 between the upper and lower conductive layers with the arranged circuits, and finally welding the four led-out metal wires 1.1, 1.2, 2.1 and 2.2 to the touch screen controller chip in sequence.

It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present inventive concept as defined by the appended claims.

Claims

1. A flexible touch device is composed of an upper conducting layer, a middle isolating layer and a lower conducting layer and is characterized in that the upper conducting layer and the lower conducting layer are respectively made by arranging two metal conducting wires which are parallel to each other and have the same side length as the corresponding conducting layer on a prepared composite conducting material, the wiring directions of the two groups of metal conducting wires in the upper conducting layer and the lower conducting layer are perpendicular to each other, the metal conducting wires are wound and fixed on the composite conducting material at equal intervals by yarns and are covered by an insulating material, the reticular isolating layers are arranged between the upper conducting layer and the lower conducting layer, and after the upper conducting layer, the middle isolating layer and the lower conducting layer are sequentially stacked, the two groups of metal conducting wires are led in and sequentially welded on a touch screen controller.

2. The flexible touch device of claim 1, wherein the composite conductive material is a carbon black and silica gel composite conductive material.

3. The flexible touch device of claim 1, wherein the intermediate isolation layer is a mesh fabric.

4. The flexible touch device of any one of claims 1-3, wherein the metal wires are four copper wires twisted into one strand.

5. The flexible touch device of any one of claims 1-3, wherein the middle isolation layer further comprises a mesh isolation layer separating the upper conductive layer from the lower conductive layer.