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charging pile防水测试仪Sealing testing, a secret that has never been publicly disclosed in the airtightness testing industry, is the key technology for IPX8 waterproof testing of charging piles

With the development of new energy, the popularization of charging piles will be a trend, and a large part of the faults caused by charging piles are due to lack of waterproofing. Therefore, it is important for charging piles to have excellent waterproof performance. How to ensure the IPX7 waterproof test level of charging piles, which is commonly used in the industry气密性检测仪The waterproof testing function uses pressure drop method.

The principle of pressure drop waterproof testing: using gas to simulate the usage environment of the charging pile, using an air tightness detector to inflate or vacuum the charging pile, and then going through pressure stabilization, testing and other stages, the sensor will feel the change in air pressure. If there is a pressure drop, there is a leak, and the air tightness testing equipment will automatically calculate the rate of pressure drop, that is, the leak rate, to determine the waterproof performance of the charging pile and whether it has reached the corresponding IPX8 waterproof testing level.

How to do a good waterproof test on charging piles? Firstly, it is necessary to understand the waterproof structure of the charging pile.

Adopting waterproof charging piles with critical components, which are relatively small and do not have inflation ports, requires a shape resistant and sealed fixture. The components are then placed inside the fixture, and an air tightness tester is used to inflate or vacuum the fixture, thereby achieving waterproof testing and sealing testing of the charging pile.

If overall waterproofing is used, the volume of the charging pile will be relatively large. For this type of charging pile waterproofing test, direct inflation testing or vacuum testing is generally used to test the IPX waterproof test level and sealing performance of the charging pile. This requires opening an inflation port for the charging station in advance, thereby saving the cost of waterproof testing and sealing testing for the charging station.

The popular waterproof detectors and sealing testing equipment on the market are mainly high-precision air tightness testing equipment from Hairui Si

Parameters of airtightness testing equipment

Gas supply pressure: 0.4~1.2MPa

Power supply voltage: 220V/50Hz or 110V/60Hz

Pressure regulation range: -40~-0.5KPa, 5-150KPa

Pressure regulation accuracy: 0.1KPa

Pressure test range: -80~150KPa

Minimum resolution of pressure attenuation test is 1Pa

Minimum resolution for leakage flow test: 0.01ml/min