Constant temperature and moisture test box

Abstract

The invention relates to a constant temperature and moisture test box, comprising a box body, a work room, a cooling assembly, a heating assembly, a humidifying assembly and an electric assembly, wherein the work room, the cooling assembly, the heating assembly, the humidifying assembly and the electric assembly are all set in the box body. In comparison with the existing technology, the invention uses nicochrome electrical heating type heater to heat such that it has an energy saving function and can save 20% of energy consumption. In addition, the device can be used at a low temperature without any influences. The observation window is made of multi-layer hollow toughened glass, and inner side thereof is glued with a chip conductive film which automatically control heating according to different monitored temperature to prevent moisture condensation on the observation window, and is advantaged by transparency, heat insulation and is advantaged that steam condensation can not be produced easily. The inner side of the box can be conveniently observed through the observation window at any time. The illumination in the box is fluorescent lamp illumination and the vision is tender and bright such that the test process can be observed clearly and power consumption can be reduced.

Description

technical field [0001] The invention relates to an experimental device, in particular to a constant temperature and humidity test chamber. Background technique [0002] At present, the heating methods of many constant temperature and humidity test chambers use self-made heating wires, which are directly wound on the spiral porcelain rods with stainless steel wires. The temperature fluctuations are relatively large when doing high and low temperatures each time, and must be self-tuned every time, so Bring great disadvantages to equipment operation. The humidification method is shallow trough humidification, and the equipment will be affected at low temperature. It is necessary to drain the water in the test chamber every time before doing the low temperature test. Moreover, the humidity deviation is relatively large, and the floating ball controlling the water level is fragile and needs to be replaced frequently, which brings great disadvantages to the operation of the equip...

AI Technical Summary

Problems solved by technology

Moreover, the humidity deviation is relatively large, and the floating ball controlling the water level is fragile and needs to be replaced frequently, which brings great disadvantages to the operation of the equipment.

Greatly increased the cost of testing

Moreover, when the equipment is in high temperature and high humidity, because the temperature inside the test chamber is relatively higher than the ambient temperature, the water vapor close to the observation window will condense into water droplets and return to the observation window. There is frost, and the condition of the samples inside cannot be seen through the observation window at this time

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