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Dust test system

A test system, sand and dust technology, applied in the direction of environment/reliability testing, measuring electricity, measuring devices, etc., can solve the problems of low accuracy of test results, inability to accurately control the flow rate of sand and dust, etc., and achieve high test accuracy Effect

Inactive Publication Date: 2013-05-15
HONG FU JIN PRECISION IND WUHAN CO LTD +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The traditional sand and dust test system cannot accurately control the flow velocity of sand and dust, resulting in low accuracy of test results

Method used

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Examples

Experimental program
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Embodiment Construction

[0012] see figure 1 with figure 2 A preferred embodiment of the dust test system of the present invention includes a test case 10 for accommodating an electronic device 50 to be tested, a vibrating device 20 installed on the test case 10 and an electrical connection to the test case 10. The vibration control circuit 30 of the vibration device 20 . Wherein, the vibration control circuit 30 is installed in a control box 60 , and a speed regulating knob 61 is installed on the control box 60 .

[0013] The test box 10 includes a box body 11, and a first opening 111 and a second opening 112 are opened on the box body 11 respectively, and the first opening 111 and the second opening 112 are set on two sides of the box body 11 that are perpendicular to each other. board. A sliding door 113 is slidably installed on the first opening 111 , and a sliding door 114 is rotatably installed on the second opening 112 . A dust box 115 is movably installed at the bottom of the box body 11 ...

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PUM

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Abstract

A dust test system comprises a test box used for placing electronic devices to be tested, a vibration device is installed on the test box and electrically connected with a vibration control circuit, the vibration device comprises a vibration net and a plurality of vibration motors, the vibration net is installed on the test box, and the plurality of vibration motors are connected with the vibration net. The vibration control circuit comprises a variable frequency controller which comprises a plurality of variable frequency signal input ends and a plurality of variable frequency signal output ends, the variable frequency signal input ends are respectively used for receiving first alternating voltage signals, the variable frequency signal output ends are connected with the ground respectively through the plurality of vibration motors, according to the received first alternating voltage signals, the variable frequency controller outputs corresponding second alternating voltage signals at the output ends to control the vibration motors to vibrate, and the vibration motors drive the vibration net to vibrate to enable dust on the vibration net to drop into the test box.

Description

technical field [0001] The invention relates to a sand and dust test system, in particular to a sand and dust test system for testing the working stability of electronic products in a sand and dust environment. Background technique [0002] Sand and dust test is one of the environmental tests of electronic products. During the test, the sand and dust environment that the electronic product to be tested may experience during the use of the electronic product to be tested is artificially simulated in the laboratory. By setting the type of dust, flow velocity, particle size, test time, and exposure degree to test the actual performance of electronic products, and then improve the reliability of electronic products. Traditional sand and dust testing systems cannot accurately control the flow velocity of sand and dust, resulting in inaccurate test results. Contents of the invention [0003] In view of the above, it is necessary to provide a sand and dust testing system that ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 张强刘玉林
Owner HONG FU JIN PRECISION IND WUHAN CO LTD
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