How does the car camera detect air tightness?

1. The mainstream sealing method of vehicle-mounted camera, and the sealing ring adopts ultrasonic spin welding; If so, it is not too difficult to test the air tightness result with Harris's air tightness tester.

2. The mainstream car camera air tightness test, IPX7 waterproof test pressure, theoretically imitates the pressure of one meter water depth, which is about 10kpa, but the camera industry generally uses the pressure of 60KPA to test the air tightness of car cameras.

3. The camera leaks, sealing rings, screw holes, wires (wires without waterproof function), and the bonded part where the wires contact with the shell. Are places that need to be tested by air tightness tester.

4. The camera test is ok, and the result shows that the water is wet, which may be that the water seeped in from the wire.

5. How can the camera measure air tightness without air holes? Make a sealed mold similar to a camera, put the camera in the mold and inflate the mold. Connect Harris's air tightness tester for testing.

6. How long does it take to test once? It takes about 20 seconds to test with Harris's air tightness tester. This is a very efficient air tightness test, which many manufacturers' air tightness testers may not be able to do.

7. What is the test method? Do you want to soak in the water? Pressurize in water? The air tightness tester adopts compressed air detection mode, which has completely replaced the use of bubble water to detect the air tightness of the camera. This is a new air tightness testing technology, which is widely used in all walks of life, such as mobile phone waterproof testing, wire air tightness testing, audio air tightness testing, connector air tightness testing and other testing fields.