Electromagnetic shielding and reinforcement method of resistive touch screen for on-board computer

Abstract

The invention provides an electromagnetic shielding and reinforcement method for a resistive touch screen for a vehicle-mounted computer. The method comprises the following steps: the electromagnetic shielding type resistive touch screen is installed in an internal installation mode; a case is formed by finish machining of a casting aluminum rough part, a step hole is formed to install the touch screen, and an installation plane is subjected to conductive oxidation treatment in planarity; the periphery of the surface of the electromagnetic shielding type resistive touch screen is bonded with the inner wall of the case by adopting a double-sided adhesive; a gap between the side wall of the periphery of the electromagnetic shielding type resistive touch screen and the side wall of the step hole of the case is filled with a plane sealant and a conductive adhesive; and conductive foam cotton is pasted at the periphery of the back surface of the electromagnetic shielding type resistive touch screen. The method is suitable for satisfying working demands in complicated electronic environments.

Description

technical field [0001] The invention belongs to the technical field of vehicle-mounted electronic systems, and in particular relates to an electromagnetic shielding and reinforcement method for a resistive touch screen used in a vehicle-mounted computer. The present invention can be used in computer equipment in vehicle-mounted electronic systems, such as instruments and meters, communication radio stations, control computers and other computer equipment in vehicle-mounted electronic systems such as ordinary cars, ambulances, police cars, and mobile communication vehicles that work in the environment inside and outside the vehicle. . Background technique [0002] In vehicle-mounted electronic systems, computer equipment has generally used resistive touch screens as operation input devices. Due to the complex composition of vehicle electronic systems, including computers, communication radio stations, satellite positioning devices, special electronic equipment and vehicle po...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of computer equipment equipped with a resistive touch screen in the existing vehicle electronic system, the electromagnetic compatibility performance of the computer equipment is reduced due to the electromagnetic leakage caused by the opening of the chassis, and the reliability of the computer equipment is reduced in a complex electronic environment. In order to meet the needs of working in the environment to prevent rain and work in a vibration and shock environment, the invention provides an electromagnetic shielding and reinforcement method for a resistive touch screen used in a vehicle-mounted computer

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