Charging pileWaterproof tester, sealing testing, an air tightness testing industry that has never disclosed secrets, 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 failures of charging piles are caused by non-waterproofing, so it is important for the waterproof performance of charging piles to be excellent.How to ensure the IPX7 waterproof test level of charging piles is commonly used in the industryAir tightness detectorThe waterproof test function adopts the pressure drop method.

Pressure drop method waterproof test principle: use gas to simulate the usage environment of the charging pile, use an air tightness detector to inflate or evacuate the charging pile, and then go through stages such as voltage stabilization and testing. The sensor will feel the changes in air pressure. If there is a pressure drop, there is a leak. The air tightness testing equipment will automatically calculate the rate of air pressure drop, which is the leakage rate, to determine the waterproof performance of the charging pile and whether it has reached the corresponding IPX waterproof level, such as IPX8 waterproof test level.

How to perform a waterproof test on a charging pile? First, you must understand the waterproof structure of the charging pile.

Use a charging pile with waterproof key parts. This type of core component is relatively small and does not have an inflation port. Therefore, you need to make a shape-proof and sealed tooling. Then the components are placed into the tooling, and the air tightness detector inflates or evacuates the tooling to achieve waterproof testing and sealing testing of the charging pile.

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

The most popular waterproof detectors and sealing testing equipment on the market are the high-precision air tightness testing equipment of Hirays.

Air tightness testing equipment parameters

Air supply pressure: 0.4~1.2MPa

Power supply voltage: 220v/50hz or 110v/60hz

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

Pressure adjustment accuracy: 0.1KPa

Pressure test range: -80~150KPa

Pressure decay test minimum resolution 1Pa

Minimum resolution of leakage flow test: 0.01ml/min