Regarding the sealing test of vehicle cameras, we have shared several cases in previous articles. Regarding the sealing test of vehicle cameras, we are used to test the shells and lenses of such products. If the sealing of the vehicle cameras is not good, it will affect the normal life and use of the product. In severe cases, the equipment may be scrapped due to special weather conditions.

This time we will share the sealing test of the car camera housing, hoping it will be helpful to everyone.

(Camera housing sealing tester)

1. Analysis of Difficulties in Detection of Car Camera Housings

1. The casing of the vehicle camera is in the shape of a black square. The casing is taken out and divided into two pieces. There are round holes inside the casing and uneven shapes on both sides. Due to the special internal structure, the appearance condition needs to be given priority during inspection;

(Camera housing)

2. Due to the special position of the vehicle camera, high-speed driving on the vehicle will cause the camera housing to bear greater pressure, so the pressure value needs to be set for this test;

3. During the test, the small holes on the top of the product should be blocked with sealant, and compressed gas should be filled from the small holes on the bottom. Check whether the gas leaks from the gap in the middle of the product to judge the sealing performance of the product;

two, Demonstration of the sealing testing process of the car camera housing

1. Due to the small size of the vehicle camera casing and its special internal structure, we need to use a mold to assist in the inspection during inspection. The mold is customized according to the entire camera casing. Before inspection, put the casing into the mold and stick to the inner wall of the mold. At the beginning of the inspection, the upper and lower molds are closed to form a closed space, which is more conducive to the inspection;

(Camera shell sealing testing tool)

2. Before testing, we need to set the parameters on the instrument. After pressing the start button, the instrument will fill the mold with dry and impurity-free gas, then cut off the compressed air supply, wait for a period of time to stabilize the pressure, and monitor the slight changes in air pressure in the testing environment after a set measurement time.The sensor transmits this information to the detection system, and finally through a series of calculations, the leakage value of the gas can be obtained, and its sealing value can be detected based on the leakage value;

(Details of sealing test of camera housing)

(Sealing tester parameter settings for camera housing)

1. If the product to be tested is not sealed and air leakage occurs, the leakage value displayed in the instrument will become larger and larger, and the pressure value will decrease at the same time.At this time, it can be determined whether the car camera housing is leaking, and the instrument test result will also show NG, which means the air tightness test failed.If the tested car camera housing does not leak, the gas inside the mold will be in a constant state after inflation, and the pressure value and leakage value displayed on the instrument will also be stable. The instrument test result will display OK, indicating that the sealing test has passed.

1. Sealing tester parameters of vehicle camera housing

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