Bidirectional pressure balancing device and environmental test box

Abstract

The invention discloses a bidirectional pressure balancing device and an environmental test box, the bidirectional pressure balancing device comprises a pressure relief box, a partition part is installed in the pressure relief box, the partition part divides the internal space of the pressure relief box into a first chamber and a second chamber, any side of the first chamber is provided with a first vent hole, any side of the second chamber is provided with a second vent hole, the partition part is provided with an exhaust channel and an air inlet channel, the end, close to the second chamber, of the exhaust channel is provided with an air outlet partition plate, the upper end of the air outlet partition plate is rotationally connected with the partition part, and the end, close to the first chamber, of the air inlet channel is provided with an air inlet partition plate; the upper end of the air inlet partition plate is rotationally connected with the partition part. The test box has the beneficial effects that the effect of bidirectional pressure balance can be achieved, the test box can be guaranteed at high temperature, and compression deformation of the test box can be prevented at low temperature.

Description

technical field [0001] The invention belongs to the technical field of environmental test chambers, and in particular relates to a two-way pressure balance device and an environmental test chamber. Background technique [0002] The environmental test chamber can be used to test whether the product is resistant to high and low temperature. It is an essential test equipment for aviation, automobiles, home appliances, scientific research and other fields. Because the temperature and humidity range of the environmental test chamber is very wide, it often reaches the temperature of -70 ~ 150 ℃ And the humidity of 20-98% RH, and when different temperatures are switched rapidly, there will be a pressure difference inside and outside the test chamber, which will cause deviations in machine performance and even damage the structure of the equipment. [0003] For example: when the working chamber of the test chamber is in high-temperature working mode, high pressure will be generated ...

AI Technical Summary

Problems solved by technology

[0003] For example: when the working chamber of the test chamber is in the high-temperature working mode, high pressure will be generated inside the working chamber, and the equipment has the risk of explosion; when the working chamber of the test chamber is in the low-temperature working mode, negative pressure will be generated inside the working chamber, and there is a risk of compression deformation of the equipment

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