Anti-jamming printed circuit board package and its combined inserting structure

Abstract

The internal weak current line and outer leading line are configurated in partition on the printed plate component with composite structure to insert every components into left and right rear panel of printed circuit plate in machine box in order vertically. The weak current line on every components are connected each other by printed lines at rear panel of printed circuit plate, the outer leading line of every components are insert in direct leading-out socket fixed on machine box to lead lines out directly. The confounding between strong and weak current liens and leading line is prevented and the separation of diffeent electric lines is realized by said invention with excellent anti-interference ability.

Description

technical field [0001] The invention relates to a printed circuit board plug-in structure in the electrical field, in particular to a combined plug-in structure composed of an anti-interference circuit board plug-in. Background technique [0002] At present, in each microcomputer control device, especially in the relay protection device of the engine, it is a relatively common problem that the strong electric signal is serially inserted into the weak electric circuit to interfere with the normal operation of the device. For this reason, in conventional devices, measures such as isolation and filtering have been adopted, which have produced certain positive effects, but the effects are not very satisfactory. Research has shown that the source of interference is mainly the surge (analog quantity) introduced from the outside through the device terminals. input, digital input, output, DC power input, etc.). However, in the existing device, the chassis structure and terminal arr...

AI Technical Summary

Problems solved by technology

For this reason, in conventional devices, measures such as isolation and filtering have been taken, which have produced certain positive effects, but the effects are not very satisfactory. Studies have shown that the source of interference is mainly the surge (analog quantity) introduced from the outside through the terminals of the device. input, digital input, output, DC power supply line, etc.)

However, in the existing devices, the structure of the chassis and the layout of the terminals are mixed with strong and weak current terminals and circuits. Due to the characteristics of high frequency and steep leading edge of common mode interference, it is easy to be connected to the system through distributed capacitance, which reduces the product quality. anti-interference ability

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