With the development of new energy, the popularization of charging gun sockets will be a trend. A large part of the failure of charging gun sockets is caused by non-waterproofing, so the waterproof performance of charging gun sockets is extremely important.How to guarantee
The charging gun socket has an IPX7 waterproof test level. The waterproof test function and pressure drop method of the air tightness detector are commonly used in the industry.
Pressure drop method waterproof test principle: use gas to simulate the use environment of the charging pile, use an air tightness detector to inflate the charging gun socket, or evacuate, and then go through stages such as voltage stabilization and testing, and the sensor will feel the change in air pressure.
If there is a drop in pressure, there is a leak. The air tightness testing equipment will automatically calculate the rate of drop in air pressure, which is the leak rate, to determine the waterproof performance of the charging pile and whether it reaches the corresponding IPX waterproof level, such as
IPX8 waterproof test level.
How to do a waterproof test of the charging gun socket? First, you must understand the waterproof structure of the charging gun socket.
Use a charging gun socket with waterproof key parts. This type of core component is relatively small and does not have an inflation port. You need to make a shape-proof, sealed tooling, and then put the component into the tooling. The air tightness detector inflates or pumps out the tooling.
Vacuum to achieve waterproof testing and sealing testing of charging piles.
If the overall waterproof is used, the charging head will be relatively large. For this type of charging gun socket waterproof test, direct inflation testing is generally used, or vacuum testing is used to test the charging gun socket IPX waterproof test level and sealing performance.
Test.This requires opening an inflation port for the charging gun socket in advance, thereby saving the cost of waterproof testing and sealing testing of the charging gun socket.
