Anti-dew heating control method and device

Abstract

The invention relates to a dewdrop-proof heating control method and device. The method comprises the following steps: detecting environment humidity; obtaining a corresponding first humidity interval according to the environment humidity; controlling a controller to work at a corresponding first operation rate according to the first humidity interval; when the environment humidity changes from the first humidity interval to a second humidity interval, detecting the length of time that the environment humidity is maintained in the second humidity interval; and when the length of time is greater than a preset length of time, controlling a heater to work at a second operation rate corresponding to the second humidity interval. According to the invention, when the humidity changes from one humidity interval to the other humidity interval, the length of time that the humidity is maintained in the latter humidity interval is detected, and whether a heating wire changes the operation ratio to work is controlled according to the length of time; and since the heating wire changes the operation rate only when the length of time is large, the phenomenon that the heating wire changes the operation rate frequently in a short time due to humidity change can be effectively avoided, abnormal working of the heating wire is effectively avoided, and the service life of the heating wire is prolonged.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a dewdrop prevention heating control method and device. Background technique [0002] Because the inner side of the refrigerator is affected by the cold air in the refrigerator or freezer, the heat on the outer side is absorbed by the inner side, resulting in a lower temperature on the outer side of the refrigerator, and the water vapor around the refrigerator meets some parts with a lower temperature on the outer side of the refrigerator. Water droplets, such as the flip beam on a side-by-side refrigerator, the temperature of the outer surface of the flip beam is relatively low due to internal heat transfer, making it easy to condense water droplets on the outer surface. [0003] In order to avoid dewdrops on the surface of the flip beam, the traditional refrigerator uses a humidity sensor combined with a heating wire to evaporate the dew. The humidity sensor detects the h...

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Problems solved by technology

[0005] Based on this, it is necessary to provide an anti-dew heating control method and device for the technical problem of frequent switching of the operating rate of the heating wire of the refrigerator due to frequent changes in the ambient humidity in the critical range of the humidity range, resulting in abnormal operation

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