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Application example of lamp shell sealing tester

As the first pass of lamp protection, lamp shell plays an important role in the realization of lamp waterproof. Therefore, in order to ensure that the lamp meets the waterproof grade standard, it is necessary to test the sealing of lamp shell in production, so as to reduce the influence of water, pollutants and dust on the lamp in use. This time, Harris technology will provide an application example of lamp shell sealing tester to provide suggestions for lamp shell sealing test. The following is an application example.

1、 Display of lamp shell tested by Harris Technology

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We can see from the figure that the lamp is a long strip type, which is a structural waterproof part. The lamp shell belongs to closed type. The light source is wrapped with a light transmission cover. The fixed part of the light transmission cover is tightly closed and isolated from the outside world. The internal and external air can not circulate and there is no air filling hole. Sealant and sealing ring are used as joint materials.

2、 Key points of sealing test for lamp shell

1. Because of the particularity of the lampshade structure, the indirect detection method is needed

2. Test the lamp shade within the specified pressure

3. In order to protect the lampshade shell, it is necessary to realize nondestructive testing

4. The sealing test is at room temperature to avoid the influence of temperature on the sealing test

3、 Brief introduction of hermetic test solution for shell of high rise technology lamps

Due to the special structure of the lamp shell and the arc shape, hiris technology adopts the indirect detection method. First, the corresponding mold is customized for the lamp shell and fixed on the tooling. The mould can effectively fix the lamp shell with arc shape. Before the test, put the lamp shell into the mold, and then start the tester. When the upper and lower mold will be closed, a sealed space will be formed inside the mold to isolate the external environment, so that the shell will not be damaged and affected in the test. The following is the hermetic tester for the shell of the highrise technology lamps.

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Secondly, in the control of the detection pressure, the precision pressure sensor built in the hermetic tester strictly monitors the change of the air pressure in the mold, and controls the detection pressure within the detection pressure range without damaging the lamp shell. Finally, after a series of calculations, the leakage value of the gas can be obtained, and the air tightness and IP waterproof grade of the lamp shell can be detected according to the leakage value.

In addition, this lamp shell sealing detector has reached the automatic production standard. It has "positive and negative" pressure forms and 8 Basic test modes, which can be selected or combined. Using 24 bit a / D conversion, 32-bit CPU operation, and fully independent development of industrial control operating system, with full touch human-computer interface. Built in RS232 serial port, RJ45 network port, USB communication interface, LTP external I / O control port, support a variety of communication protocols, enhance the operability of the equipment, and improve the detection efficiency of manufacturers. The following is the inspection details.


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At present, the airtightness detector of outdoor lamps and lanterns of Harris technology is applied in the airtightness detection of lamp shell, circuit board and wire rod of road lamp, landscape lamp (China lamp, fireworks lamp, cherry lamp, etc.), lawn lamp (stainless steel turf lamp), buried lamp, wall lamp, outdoor spotlight, projection lamp, wall washing lamp, etc.

The copyright of the above content belongs to Harris technology. Reproduction, plagiarism and false original are strictly prohibited. Once found, the consequences will be borne by ourselves.

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