Environmental test box for controlling high and low temperature alternation

Abstract

The invention discloses an environmental test box for controlling high and low temperature alternation, which comprises a box body and a box door, a window is embedded in the middle of the box door, a sliding groove is formed in the edge of the window, a driving rod is fixedly mounted at one end in the sliding groove, and an extension rod is movably connected to one end, deviating from the sliding groove, of the driving rod. The outer end face of the extension rod is sleeved with a cleaning device, the cleaning device is attached to the surface of the window, a temperature sensing device for driving the extension rod to move is arranged in the cleaning device, multiple sets of cleaning layers are fixedly embedded in the side end face of the cleaning device, and the two ends of the cleaning device are fixedly connected with rotating rings. A nut is elastically embedded in the middle of the rotating ring, a threaded groove matched with the nut is formed in the side end face of the extending rod, and the problem that the state of a sample is difficult to observe through a window in the using process of the environment box can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of environmental chamber equipment, in particular to an environmental chamber for controlling alternating high and low temperatures. Background technique [0002] With the development of science and technology, people's lives are increasingly inseparable from various electronic devices and the Internet, and this creates higher requirements for the reliability of electronic devices in various environments. Among them, the environmental test chamber It is a prop that is widely used in reliability tests related to test equipment. As the test equipment becomes more and more complex and the precision improves, the requirements for the environmental test chamber are also getting higher and higher. [0003] Chinese Invention Patent Publication No. CN112517090A, the invention discloses an environmental test chamber, comprising a test cavity, an environmental sensor and a processor; the test cavity is used to place e...

AI Technical Summary

Problems solved by technology

[0004] Existing environmental test chambers need to achieve long-term low temperature and high temperature and high humidity operation under long-term operation reliability and durability conditions. When operating at low temperature and high temperature and high humidity, the window is prone to frost and water mist, making it difficult to effectively penetrate the test sample state , while the electric heating method in the prior art is easy to cause samples near the window, the test environment is affected, the test results are affected, and it is difficult to improve the control accuracy of the equipment

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