Cold-hot gas flow high-speed high-low-temperature environmental testing machine

An environmental test, high and low temperature technology, applied in the field of testing machines, can solve the problems of low power required for cooling and heating, achieve the effects of reducing space and area, convenient use and adjustment, and lightening the burden

Inactive Publication Date: 2007-08-08
UNITED AUTOMOTIVE ELECTRONICS SYST +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

When performing high and low temperature tests or thermal shock tests on tiny electronic and mechanical parts, the power required for cooling and heating is relatively low

Method used

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  • Cold-hot gas flow high-speed high-low-temperature environmental testing machine

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Embodiment Construction

[0015] When performing high and low temperature tests or thermal shock tests on tiny electronic and mechanical parts, the power required for cooling and heating is relatively low. It can be used to heat or cool the compressed air first, and then blow the gas directly to the sample after reaching the required temperature, so as to realize two kinds of tests with one testing machine.

[0016] As shown in the figure, the hot and cold air flow type high-speed high-low temperature environmental testing machine of the present invention comprises oil-removing and water-removing filter D1, heatless regeneration air drier D2 (also can adopt freeze drier. The noise of heatless regeneration air dryer is relatively high large and easy to maintain; the freeze dryer has less noise and more complicated maintenance), the first pressure regulating valve V], the third solenoid valve Y3, the refrigeration heat exchanger C1 and the heater H2, the above components or equipment are serially connecte...

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Abstract

The invention discloses a cold and hot air high-speed high and low temperature environment testing machine, and the oil removal water removal filter, no heat regenerative air dryer, the first pressure regulating valve, the third electromagnetic valve, the refrigeration heat exchanger and the heater connecting sequent by the pipe; through the pipelined second pressure regulating valve and the second electromagnetic valve parallel connect between the first pressure regulating valve output and the third electromagnetic valve output; the first electromagnetic valve connects to the node between the second pressure regulating valve and the second electromagnetic valve, and the node between the refrigeration heat exchanger and the heater. Compared with the existing devices, the invention can process high and low temperature tests, and also thermal shock tests, the equipment having small size, low cost, applicable to the test of electronics, machinery fields to small parts performance.

Description

technical field [0001] The invention relates to a testing machine for performing high and low temperature environmental tests on small components in the fields of electronics and machinery. Background technique [0002] For tiny components in the electronic and mechanical fields, in order to ensure the reliability of the components, high and low temperature tests or thermal shock tests are required. The commonly used test equipment is high and low temperature test chamber and thermal shock test chamber. When conducting high and low temperature tests, the samples are placed in a closed high and low temperature test chamber, heated by an electric heater, and refrigerated by a refrigeration compressor unit to test the performance of the samples. When performing a thermal shock test, it is necessary to switch the sample back and forth between a high temperature environment and a low temperature environment to test the performance of the sample. For the thermal shock test chamb...

Claims

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Application Information

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IPC IPC(8): G01N3/60
Inventor 焦兴军谢宁林卫东陆海宁徐竹
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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