Low-pressure environment test box

Abstract

The invention discloses a low-pressure environment test box, comprising a test box main body. The test box main body comprises a test chamber and a box door disposed on the front side of the test chamber, one end of the box door is hinged to the left side of the test chamber, the other end of the box door is fastened to the right side of the test chamber, the box door is provided with a sealing gasket, the sealing gasket is located between the test chamber and the box door, the test chamber comprises a test cover and a vacuum chamber, the test cover and the vacuum chamber are both open at thefront side, the front side of the test cover is provided with a plate frame having the same shape as the opening of the test cover, the projection of the opening of the plate frame in a vertical planeis located in the projection of the opening of the test cover in the vertical plane, the front end of the vacuum chamber is fixed in the plate frame and extends out of the plate frame, and a clearance is provided between the five sides of the vacuum chamber and the test cover. The invention provides the low-pressure environment test box with good sealing performance and high accuracy in performance testing.

Description

technical field [0001] The invention relates to the technical field of test products, in particular to a low-pressure environment test box. Background technique [0002] Low pressure test system (or test chamber) is widely used in aviation, aerospace, information, electronics and other fields, mainly used to test instruments, electrical products, materials, parts or equipment under the single or simultaneous action of low pressure, high temperature and low temperature. Environmental adaptability and reliability test. For example, the low-pressure test system (or test chamber) can simulate special conditions such as plateau altitude climate or high-altitude climate, place the test sample in it, and perform corresponding performance tests on the test sample. The sealing performance of the low-pressure environment test chamber is very important. , which is related to the accuracy rate of the performance test. According to the prior art, the sealing performance of the low-press...

AI Technical Summary

Problems solved by technology

For example, the low-pressure test system (or test chamber) can simulate special conditions such as plateau altitude climate or high-altitude climate, place the test sample in it, and perform corresponding performance tests on the test sample. The sealing performance of the low-pressure environment test chamber is very important. , which is related to the accuracy of the performance test. According to the prior art, the sealing performance of the low-pressure environment test chamber is poor, and the accuracy of the performance test is low.

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