High and low temperature alternating damp heat test box

Abstract

The invention discloses a high and low temperature alternating damp heat test box, and particularly relates to the field of test boxes. The high and low temperature alternating damp heat test box comprises a test box body and a test box cover, wherein a mounting frame is arranged in the test box cover, observation glass is clamped in the mounting frame, a telescopic rod is fixedly mounted at the inner top of the test box body, the outer surface of the telescopic rod is movably sleeved with a telescopic spring, a mounting base is fixedly mounted at the bottom of the telescopic rod, and a fixing screw is clamped to the outer surface of the mounting base. In the specific using process, water vapor generated in the device is collected by arranging a water collecting plate, and the water vapor moves towards the two sides under the action of gravity and falls down from the two sides, so that products on the test rack are not affected, and the detection efficiency of the device is improved; and a lifting rod is arranged to drive wiping sponge to move downwards, so that the observation glass is wiped regularly, water vapor on the surface is removed, the situation that internal conditions cannot be observed is avoided, and the practicability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of test chambers, more specifically, the invention relates to a high and low temperature alternating damp heat test chamber. Background technique [0002] The high and low temperature alternating humidity test chamber is the necessary testing equipment for aviation, automobile, household appliances, scientific research and other fields. It is used to test and determine the temperature of electrical, electronic and other products and materials for high temperature, low temperature, alternating humidity or constant test. The parameters and performance after the environment changes, the existing high and low temperature alternating humidity test chamber is to place the liquid inside the device, heat the liquid through a high temperature test, make it evaporate quickly, and form a high humidity environment, or Use the humidifier directly to heat the interior of the unit. [0003] However, there are still some s...

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Problems solved by technology

[0004] 1. During the test, because there is a large amount of water vapor inside the device, the water vapor condenses on the top of the test box, and after a long time of condensation, it will drop due to gravity. During the test, it is easy to cause detection errors on the product, and even damage or corrode the product;

[0005] 2. During the low temperature test, due to the large amount of water vapor inside the device, the water vapor will frost and cover the observation window, which is inconvenient for observation, and dew will be generated during the high temperature test, which will also affect the observation line of sight

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