Car camera is used to present images in real time, it can provide a more scientific basis for the handling and positioning of traffic accidents, so that our property and life safety has been fully protected. CCD and CMOS chip are the important parts of reversing camera. The general car camera should have waterproof function, so consumers have high requirements for its air tightness. If its air tightness is not good, it is easy to enter the water vapor in special weather, resulting in failure, resulting in damage to the internal chip of the car camera, and the car camera can not be used.
Hiris technology has also done in-depth research on the air tightness of car camera, and has made good achievements, so this time we will share a case of air tightness detection of car camera for your reference, hoping to help you.
Air tightness detector for vehicle camera
1、 Appearance of car camera and display of detection difficulties
1. The on-board camera for this test is a relatively common style, small in size and irregular in shape. The surface of the camera is wrapped with black waterproof shell material. The surface of the camera is smooth. The front end of the camera is a lens made of a circular mirror, and the back is connected with a long black wire;
2. The sealing degree of the camera surface is high, there is no obvious docking gap, and there is no inflation port. This shape can not use the detection method of directly filling gas into the interior, and the wire connected behind the camera is long, which is easy to cause that it is not good to fix the camera during the detection, and the detection results are biased.
2、 Breakthrough of vehicle camera detection difficulties
1. Before testing, Harris technology will customize a mold tooling according to the shape of the car camera. In order to better fix the two ends of the connector, there are special grooves on the mold according to the shape, diameter, size of the wire and the place to be tested. The wire behind the camera can be placed on the groove and hung on the outside of the mold;
Air tightness inspection tooling of vehicle mounted camera
2. Put the car camera into the tooling die and connect it with our instrument. There is a valve island, air tank and other parts inside the instrument and the program we set. After connecting, press the start button when testing the wire.
Details display of air tightness test for car camera
3. During the test, the instrument will inflate the mold. If the car camera is not sealed, air leakage occurs. At this time, the leakage value data in the instrument will be larger and larger, and the pressure value will drop. At this time, it can determine whether the car camera leaks, and the instrument test results will also show ng, which means that the air tightness test fails. If there is no air leakage in the test vehicle mounted camera, the gas in the tooling die will be in a constant state after inflation, the pressure value and leakage value displayed on the instrument are also stable, and the test result of the instrument will display the word OK, indicating that the air tightness test has passed.
3Parameter table of air tightness detector for vehicle camera
(parameters of hiris HC classic series air tightness tester)
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