Method and device for defrosting a refrigerator

Abstract

The invention discloses a method and a device for defrosting a refrigerator. The invention relates to the technical field of refrigerator defrosting. The present invention includes the real-time monitoring of the air pressure at the outlet of the refrigerated face mask through the pressure sensor; the controller judges whether the pressure data is less than or equal to the pressure threshold * 80%; if so, the controller controls to turn off the compressor and the refrigeration motor of the refrigerator and turn on the electric heater, At the same time, the controller controls to obtain the temperature data monitored by the temperature sensor installed on the upper part of the evaporator; the controller judges whether the temperature data reaches the temperature threshold; if so, the electric heater stops heating. In the present invention, by judging whether the wind pressure data transmitted by the pressure sensor is greater than or equal to the pressure threshold * 80%; judging the current frosting situation on the surface of the evaporator, turning on the electric heater to defrost in time, effectively controlling the amount of frosting on the surface of the evaporator, so that The defrosting of the refrigerator is more reasonable, and the refrigeration efficiency of the refrigerator is improved.

Description

technical field [0001] The invention belongs to the technical field of refrigerator defrosting, and in particular relates to a refrigerator defrosting method and device. Background technique [0002] With the deepening of the concept of energy saving and emission reduction, more and more attention has been paid to the energy saving and environmental protection of the electrical components used in household refrigerators. Frost-free refrigerators are usually equipped with defrosting electric heaters. Generally, when there is a lot of frost on the surface of the evaporator, the refrigeration efficiency of the refrigerator will be greatly reduced. The current defrosting rules cannot defrost in time and accurately, which will reduce the efficiency of the refrigerator to a certain extent and cause waste of data. [0003] The invention provides a defrosting method and device for a refrigerator, which can well monitor the frosting situation on the surface of an evaporator, timely ...

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Problems solved by technology

[0004] The object of the present invention is to provide a method and device for defrosting a refrigerator. By judging whether the wind pressure data transmitted by the pressure sensor is greater than or equal to the pressure threshold * 80%, it is determined whether to turn off the compressor and the refrigeration motor of the refrigerator and turn on the electric heater ; At the same time, by judging whether the temperature data transmitted by the temperature sensor is greater than the temperature threshold, it is determined whether the electric heater continues to heat, so as to realize the real-time monitoring of the frosting on the surface of the evaporator, ensure timely and effective defrosting, and solve the problem of full evaporator Frost cannot be defrosted in time to reduce cooling efficiency

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