A humidity control device, a preservation box and a refrigerator

Abstract

The invention relates to a humidity control device, which includes a humidifying device, a drying device, a humidity sensor and a controller; the humidity sensor is used to detect the humidity of the environment, obtain a storage humidity value, and transmit the storage humidity value to the controller; the controller will The storage humidity value is compared with the set humidity value; when the storage humidity value is greater than the set humidity value, the controller starts the drying device to work; when the storage humidity value is lower than the set humidity value, the controller starts the humidification device to work. The beneficial effect of the present invention is that the humidity control device is arranged in the drawer and installed in the freezer compartment of the refrigerator, takes power from the freezer compartment, drives the controller to operate, sets relative humidity according to stored items, has a wide application range and accurate humidity control. The combination of the humidity control drawer and the refrigerator is simple. It only needs one more circuit interface than the ordinary drawer, and there is no need to change the structure of the refrigerator. It has strong versatility. The present invention also relates to a preservation box used in a refrigerator and a refrigerator.

Description

technical field [0001] The invention relates to the field of refrigerators, in particular to a humidity control device, a preservation box and a refrigerator. Background technique [0002] As a kind of household food storage, the refrigerator needs to store more and more types of food. Among them are foods that require high humidity, such as fruits and vegetables, and foods that require low humidity, such as noodles and dry goods, to meet the needs of the market. The existing humidity environment in the refrigerator can no longer meet the needs of consumers. [0003] With the application of air-cooling technology in refrigerators, on the one hand, air-cooling technology can make the temperature and humidity in the refrigerator more uniform, but on the other hand, it has also caused some problems. For example, because there is no absolutely sealed space in the refrigerator, the refrigerator The wind flowing inside will take away the moisture in the air, making the space of t...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a humidity control device, a preservation box and a refrigerator, which can only slow down the speed of water loss in the prior art, but cannot ensure the relative stability of the humidity, which is very unfavorable to the preservation of food. question

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