Circuit board auxiliary device for preventing moisture from influencing resistance value along with temperature rise

Abstract

The invention relates to the technical field of circuit boards. The invention further discloses a circuit board auxiliary device for preventing moisture from affecting the resistance value along withtemperature rise. The device comprises a base, a movable plate is movably connected to the top of the base, a connecting rod penetrates through a side wall of the movable plate, an expansion body is movably connected to the top of the movable plate, a movable pipe is movably connected to the upper surface of the expansion body, a movable rod penetrates through the expansion body, and a reset spring is fixedly connected to the bottom of the expansion body. A connecting pipe is propped open by gas extrusion; internal wind power is extruded and blown to a circuit board; when no wind exists, the connecting pipe can be pulled back by an extension spring; the influence of low temperature of gas on the current speed when the temperature is low is avoided, the expansion body is bulged upwards dueto the influence of high temperature and returns to the original shape after the temperature is reduced, the gas pressure in a pipeline is controlled by controlling the movable pipe to move up and down, dust on the circuit board is removed with the help of wind power, and dust and moisture are prevented from being mixed together to conduct electricity.

Description

technical field [0001] The invention relates to the technical field of circuit boards, in particular to a circuit board auxiliary device for preventing resistance from being affected by moisture as temperature rises. Background technique [0002] Circuit boards exist in various electrical appliances with current. Each circuit board has fine circuits on its surface, and most of them are made by electronic printing. The advantage of such circuit boards compared with artificial ones is to avoid Errors in manual wiring occur, and the quality and efficiency of circuit board production are also improved, avoiding time-consuming and laborious efforts. [0003] In addition to the current passing through the inside of the circuit board, it is usually in a relatively stable state, and it is fixed at the same position. If this state is maintained for a long time, it is easy to absorb the surrounding moisture, and the humid water vapor is easy to contaminate dust, and the surrounding T...

AI Technical Summary

Problems solved by technology

[0003] In addition to the current passing through the inside of the circuit board, it is usually in a relatively stable state, and it is fixed at the same position. If this state is maintained for a long time, it is easy to absorb the surrounding moisture, and the humid water vapor is easy to contaminate dust, and the surrounding The dust is sucked into the interior, adhered to the dust for a long time, and accumulates on the circuit board. The moist gas and dust are mixed together, which will easily conduct electricity and affect the resistance. When the weather temperature changes, the process of thermal expansion and contraction will also affect the resistance value. , keeping this state for a long time will affect the efficiency of other components, prone to failure

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