Smart watch is a kind of watch which has information processing ability and meets the basic technical requirements of watch. In addition to indicating time, smart watch should also have one or more functions, such as reminder, navigation, calibration, monitoring, interaction, etc; Due to the particularity and precision of its structure, people have higher requirements on its air tightness. For manufacturers, its high air tightness is conducive to production safety. For consumers, the good air tightness of smart watch is conducive to ensuring its accuracy in use. Therefore, the air tightness detection is very important.
This time, Harris technology will share a case of air tightness test of smart watch for your reference, hoping to help you.
Air tightness detector of smart Watch
1、 Appearance of smart watch and display of testing difficulties
1. The appearance of the smart watch is quadrilateral, and the surface is smooth display area. The components on the back are wrapped with waterproof materials, and the overall sealing degree is high;
2. This kind of shape has a high degree of tightness and precision, so it is impossible to directly detect the gas filled in the smart watch during the detection, and it is easy to cause damage to the interior of the smart watch, so it needs non-destructive testing.
2、 The breakthrough of the test difficulty of smart Watch
Die tooling for air tightness test of smart Watch
1. According to the special shape of smart watch, Harris technology has a customized tooling mold. Because this smart watch has a strong sealing property, when testing, just put it into the mold. The groove inside the mold is customized according to the volume of the smart watch, and it is just right when it is put in and out. In this way, the mold will be closed up and down during testing, Form a closed space;
Details of air tightness test of smart Watch
2. When the instrument is started, the instrument will inflate into the closed mold through the upper appliance, and the air pressure of the instrument will rise slowly. When the air pressure is charged to the set value, the inside of the mold will be in a constant state. At this time, the induction tube will determine the flow value to detect whether the flow of the exhaust pipe meets the standard.
2、 Air tightness test process display of smart Watch
Air tightness test process display of smart Watch
1. First, we put the smart watch into the tooling and connect it with our instrument. There is a valve island, air tank and other parts inside the instrument and the program we set. After connecting, when testing the wire, press the start button.
2. During the test, the instrument will inflate the wire through the conduit. If the air tightness of the smart watch is not good, the phenomenon of air leakage will appear. At this time, the leakage value of the instrument will display more and more data, and the pressure value will drop. At this time, it can determine whether the smart watch has air leakage, and the test result of the instrument will also show ng, which means that the air tightness test fails. If the test smart watch 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 the word OK, indicating that the air tightness test has passed.
4、 Parameters of air tightness testing instrument for smart Watch
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