Damp heat test chamber

Abstract

The invention discloses a damp and hot test box comprising a bracket, an outer box body, an inner box body, a side box body, a box door and a processing device; the inner box body is internally provided with an air-out channel and an air return channel, and a test area is formed between the air-out channel and the air return channel; the processing device comprises a heating device, a first refrigerating device, and a draught fan for making gas cycle among the air-out channel, the test area and the air return channel; the draught fan cooperates with the heating device or the first refrigerating device to generate hot airflow or cold airflow; the test box also comprises an ultrasonic refrigerating humidifying device; the ultrasonic refrigerating humidifying device comprises a second refrigerating device, ultrasonic water mist generators and a conveying pipeline; room-temperature pure water is refrigerated in the second refrigerating device and then go into the conveying pipeline; the conveying pipeline is connected with water tanks; the upper end face of each water tank is provided with an opening, and to-be-tested objects are arranged to directly face the upper parts of the openings. The damp-hot test box can effectively control the cost and the equipment size, so as to avoid the waste of energy and places.

Description

Technical field [0001] The invention relates to the field of environmental test equipment, in particular to a damp heat test box. Background technique [0002] Ordinary test chambers usually have relatively small heat load capacity, especially under high humidity conditions. For tests other than high humidity, such as dry heat temperature test and low humidity test, if it is necessary to increase the heat load capacity, without increasing the volume of the test chamber, it can be solved by increasing the cooling capacity, that is, a large cooling capacity is required. Refrigeration unit; high humidity test, without increasing the volume of the test chamber, it is difficult to increase its heat load capacity through the traditional method of increasing the refrigeration capacity. In reality, some test samples, such as LED lights, need to be energized under high humidity conditions. At this time, the LED lights emit heat to the test area in the form of light emission. Just as the ...

AI Technical Summary

Problems solved by technology

For tests other than high humidity, such as dry heat temperature test and low humidity test, if it is necessary to increase the thermal load capacity, without increasing the volume of the test chamber, it can be solved by increasing the cooling capacity, that is, it is necessary to configure a large cooling capacity Refrigeration unit; high humidity test, without increasing the volume of the test chamber, it is difficult to increase its thermal load capacity by traditional methods of increasing cooling capacity

In reality, some test samples, such as LED lamps, need to be energized under high-humidity conditions. At this time, the LED lamps release the heat load to the test area by emitting light. The heat load released in the form of luminescence will be relatively large. To meet this condition, you need to purchase a test chamber that is much larger than the size of the test sample. In addition, you must also configure a larger one that matches this. Refrigeration units, heaters, humidifiers, etc., resulting in unnecessary waste of procurement funds, space, energy, etc.

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