High-precision and constant temperature and humidity cabinet

Abstract

The invention relates to a high-precision and constant temperature and humidity cabinet, which is used for storing special articles. The temperature and humidity in the cabinet can be controlled within designated scope automatically and constantly. In the invention, a cooling/heating semiconductor high-temperature stacking is used as a temperature control and dehumidification executive component, an ultrasonic wave humidifier is used as a humidification executive component, and an electric temperature/humidity sensor, a series of fans, keys, a display, a controller and the like are mounted, thereby realizing constant temperature and humidity. When temperature inside the cabinet is higher than preset target temperature, the temperature control semiconductor high-temperature stacking generates forward current to reduce the temperature inside the cabinet; when temperature inside the cabinet is lower than the preset target temperature, the temperature control semiconductor high-temperature stacking generates reverse current to raise the temperature inside the cabinet to the preset target temperature; when humidity inside the cabinet is higher than preset target humidity, the dehumidification semiconductor high-temperature stacking generates forward current to reduce the temperature of a condensation block in the cabinet to be below the dew point, so as to enable moisture in the cabinet to condensate and flow into a water tank to realize dehumidification effect; and when humidity inside the cabinet is lower than preset target humidity, an ultrasonic wave humidifier sprays water mist to raise the humidity in the cabinet to the preset target humidity.

Description

1 technical field [0001] The invention relates to a special storage cabinet for constant temperature and humidity. The air temperature and humidity in the cabinet can be automatically and accurately kept within a specified range, belonging to the field of artificial environment engineering. 2 background technology [0002] There are many occasions where the air temperature and humidity in the cabinet need to be kept at a certain value, such as biological incubator, concrete standard sample curing cabinet, standard high and low temperature alternating humidity and heat test chamber, cultural relics or valuables safe deposit box, cigar box, Puer tea cabinet Wait. The common features of these constant temperature and humidity cabinets are [0003] 1 The temperature should be adjustable within a certain range as required, and should be constant after adjustment. We call this optimal storage temperature "target temperature". [0004] 2 Humidity should be adjustable within a ce...

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Problems solved by technology

[0022] It is found that there are also designs similar to the idea of ​​the present invention, but they either share a set of actuators for refrigeration and dehumidification, which are mutually involved; or dehumidification in an open environment, the loss of distilled water is large, and the door must be frequently opened to replenish water and drain the water tray outside the box condensed water

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