It’s raining, so new energy vehicles can still be charged.The answer is yes, because the charging gun can be tested for waterproofing. For the waterproof test, a new type ofAir tightness testingtechnology, 100% guarantees that the charging gun reachesip67 waterproof testlevel or higherIP waterproof testgrade.

SoCharging gun waterproof testHow to useAir tightness detectorWhat about doing a waterproof test?What IP waterproof level does it achieve?

Generally, the charging gun usesip67 waterproof testlevel, there are also IP68 waterproof test levels.

Charging gun IP67 waterproof testThe meaning of the grade is to completely prevent dust from intruding into the charging gun. Under normal temperature and pressure, there will be no harmful effects when the charging gun is temporarily immersed in 1M deep water.

How to ensure the waterproof quality of the charging gun?You can use an air tightness tester to perform waterproof testing on the charging gun, and IP67 waterproof testing and identification.

The air tightness tester is a waterproof tester that uses compressed air as the testing medium and pressure drop as the testing principle.Its basic parameters are as follows:

The parameters of Hiraysi air tightness detector are as follows:

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

How to useAir tightness detectorRegarding the charging gun waterproof tester and IP67 waterproof test and identification, please see the following introduction by Hai Ruisi:

First, a sealing fixture needs to be made according to the shape of the charging gun.

Then put the charging gun into the sealing tool, turn on the air tightness tester, set the test pressure, stabilization time, test time and other parameters, start the air tightness tester to test the charging gunWaterproof test.And record the leakage value of the charging gun

Finally, find out the maximum leakage value allowed by the IP67 waterproof test level of the charging gun, and input the leakage value into the air tightness tester to realize batch testing of charging guns.IP67 waterproof testlevel, it can automatically detect whether it reaches the IP67 waterproof test level.

In the same way, IP66 and IP68 waterproof test levels are also tested in the same way, but the leakage values ​​set are different.