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Defrosting control method for refrigerator

A control method and refrigerator technology, applied in defrosting, household refrigeration equipment, lighting and heating equipment, etc., to reduce energy, prevent poor defrosting, and protect refrigerators

Active Publication Date: 2013-03-06
GUANGDONG HOMA REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a scientific and energy-saving defrosting control method for refrigerators with high defrosting efficiency in view of the deficiencies of the above existing technologies, and to formulate scientific and reasonable defrosting entry conditions and defrosting conditions according to different operating states of the refrigerator. Frost exit conditions, using different defrost cycles to reduce the problem of poor defrost

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with embodiment.

[0019] The frost-free refrigerator is driven by a fan, so that the air passes through the air duct to exchange heat with the food in the box, and then exchanges heat with the refrigerant in the evaporator, so as to achieve the purpose of cooling. When the frost layer on the evaporator is serious, the air flow resistance increases, and the heat exchange effect with the refrigerant decreases, which leads to the abnormal control of the temperature in the box. Therefore, for frost-free refrigerators, it is necessary to regularly clean the frost layer on the evaporator. very necessary. However, if the defrosting control is not reasonable, it will lead to poor defrosting or excessive defrosting.

[0020] The refrigerator defrosting control method provided by the present invention includes the following steps: judging the defrosting mode; confirming whether the defrosting start condition i...

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Abstract

The invention relates to a defrosting control method for a refrigerator, comprising the following steps of: determining to obtain a defrosting mode; confirming whether the defrosting start condition is met; and defrosting until the defrosting condition is met. Different defrosting control modes are executed according to different external conditions, and the defrosting cycle is determined according to the number of times of door opening after the end of first defrosting after power-on, accordingly, the poor defrosting can be prevented, and the energy consumed by unnecessary defrosting operation can also be reduced.

Description

technical field [0001] The invention relates to the technical field of refrigerators, and more specifically, to a method for controlling defrosting of a refrigerator. Background technique [0002] The refrigerator evaporator will form a frost layer on the surface of the fins of the evaporator after being used for a period of time. If the refrigerator has been in operation for a long time, the accumulated thickness of the frost layer will directly affect the heat transfer rate, and the frost layer needs to be removed to solve the problem. In the prior art, the most commonly used defrosting method on frost-free refrigerators is to use electric heating to periodically melt the frost on the evaporator. When the cumulative power-on time and compressor running time reach a certain value, the defrosting heater will be started. This method is simple and defrosts as soon as the accumulative time is reached, but this control method cannot fully reflect the degree of frosting on the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00F25D21/06
Inventor 蔡拾贰吴世庆江文洪张鸿
Owner GUANGDONG HOMA REFRIGERATOR CO LTD
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