As an intelligent detection device, micro control switch plays an important role in life. As an indispensable component in intelligent equipment, people have very high requirements for its accuracy and stability. When using the micro control switch, it has the characteristics of fast response, intelligent recognition and induction. There are some electronic components in the micro control switch. If these electronic components are affected by water or moisture, it will affect the performance of the micro control switch. In order to ensure its normal function, people often check whether its sealing performance meets the standard. Today, Harris will share with you the sealing test of the micro control switch. I hope you can have a new understanding of the waterproof of the micro control switch.
Seal tester of micro control switch
1、 Requirements for tightness test of micro control switch
The volume of the micro control switch is small, the whole is irregular tetrahedron, and there are three wires used to connect other components in the rear, so the overall precision is high;
Micro control switch
Because the shape of the control switch is special, and there is no air filling hole, so it can only use indirect detection method, and the control switch has the requirements of non-destructive and high detection accuracy, so the sealing detection is more difficult.
twoShow the sealing test process of micro control switch
1. According to the shape of the micro control switch, Harris technology has specially customized a special inspection mold for it. There are special grooves on the mold to place the control switch and butt wire. It can embed the whole control switch into the mold. At the beginning of the inspection, the upper and lower molds close it to form a fully sealed space;
Detail display of seal test for micro control switch
2. Before the test, set up the relevant program, press the start key, and the upper and lower molds will be closed. Form a confined space. The tube connected to the detector will inject clean and impurity free gas into the mold, and the instrument will judge whether the seal of the micro control switch meets the standard through the air pressure inside the mold;
Demonstration of sealing test process of micro control switch
3. If the micro control switch is not sealed and air leakage occurs, the leakage value in the instrument will be larger and larger, and the pressure value will drop. At this time, it can determine whether the micro control switch is leaking, and the instrument test results will also show ng, which means that the tightness test fails. If the tested micro control switch does not leak, the gas in the tooling die will be in a constant state after inflation, the pressure value and leakage value displayed on the instrument are also stable, and the test result of the instrument will display "OK", indicating that the tightness test has passed.
3Parameters of micro control switch sealing tester
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