Programmable constant-temperature and constant-humidity testing box and control system

Abstract

The invention relates to the technical field of testing equipment and in particular relates to a programmable constant-temperature and constant-humidity testing box and a control system. The programmable constant-temperature and constant-humidity testing box comprises a box body and a box door, wherein the box body is hinged to one side edge of the upper part of the left side of the box body; the control system is arranged at the right side part of the box body; a power distribution control cabinet is arranged at the rear part of the control system; the box body is internally provided with a heater, a humidifier, a water tank, a testing chamber and a refrigerating system; the refrigerating system comprises an evaporator, a refrigerating compressor and a condenser; the refrigerating compressor, the condenser and the water tank are arranged below the testing chamber. The programmable constant-temperature and constant-humidity testing box and the control system have the beneficial effects that a testing system provided by the invention has an advanced and reasonable structural design, a manufacturing process is standard and the appearance is beautiful and elegant; main functional components of the testing box are world-brand components so that the safety and reliability of products are improved; requirements of long-time and high-frequency utilization of users can be ensured; equipment has good operability and maintainability, good temperature stability and durability and good safety performance, does not cause environment pollution and has no damages to human health.

Description

technical field [0001] The invention relates to the technical field of test equipment, in particular to a programmable constant temperature and humidity test chamber and a control system. Background technique [0002] The constant temperature and humidity testing machine is an important test equipment in the constant temperature and humidity test of the product. It is mainly used to simulate the environmental temperature of the product. There are certain problems in the design of the existing constant temperature and humidity testing machine. There is a problem in the water supply system device. Major problems, (1) The water supply is unstable, and the water level cannot be accurately controlled; (2) There is no alarm when there is no water; (3) Due to the imbalance of air pressure, the water cannot be supplied in place. As a result, the whole machine fails. At the same time, in terms of constant humidity, the overflow circuit cannot be well controlled, resulting in overflow...

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Problems solved by technology

[0002] The constant temperature and humidity testing machine is an important test equipment in the constant temperature and humidity test of the product. It is mainly used to simulate the environmental temperature of the product. There are certain problems in the design of the existing constant temperature and humidity testing machine. There is a problem in the water supply system device. Major problems, (1) The water supply is unstable, and the water level cannot be accurately controlled; (2) There is no alarm when there is no water; (3) Due to the imbalance of air pressure, the water cannot be supplied in place

As a result, the whole machine fails. At the same time, in terms of constant humidity, the overflow circuit cannot be well controlled, resulting in overflow problems and affecting the instability of the entire system. At the same time, the temperature control cannot be accurately controlled.

[0003] The existing constant temperature and humidity test chambers generally stop heating after the temperature of the chamber is too high to lower the temperature, so that the temperature in the chamber will continue to rise for a certain period of time, and the rate of decrease is very slow and unstable, and the control effect very poor

At the same time, it is not conducive to monitoring real-time temperature and humidity, and there is no accurate understanding of the experimental conditions, so there may be some errors in the experiment

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