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Refrigerator and defrosting control method thereof

A control method and refrigerator technology, applied in defrosting, household refrigeration equipment, lighting and heating equipment, etc., can solve the problems of insufficient defrosting, poor defrosting effect, energy waste, etc., and achieve improved heat utilization efficiency, chemical The effect of frost is better, and the effect of defrosting is direct

Active Publication Date: 2018-05-18
HAIER SMART HOME CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method of setting the defrosting start point and end point based on experience has poor defrosting effect because the frosting / defrosting situation cannot be clearly defined.
Especially when it is determined that the defrosting is terminated, if the frosting on the evaporator is not completely eliminated and the defrosting is stopped, it will lead to insufficient defrosting, which will affect the subsequent cooling effect of the evaporator; if the frosting on the evaporator It has been completely eliminated, but the heating wire has not stopped heating, which will cause energy waste and affect the service life of the defrosting device

Method used

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  • Refrigerator and defrosting control method thereof

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Embodiment Construction

[0026] Such as figure 1 , figure 2 As shown, the embodiment of the present invention firstly provides a refrigerator. In this embodiment, the refrigerator is an air-cooled refrigerator, and the air-cooled refrigerator includes: a door body, a box body, and a refrigeration cycle system composed of a compressor 100 , an evaporator 300 and a condenser 200 . The inside of the box body forms a storage compartment and an air supply duct at the rear of the storage compartment. The evaporator 300 is arranged in the air supply duct. The pipe through which the refrigerant flows, and cools the air inside the air duct through the refrigerant flowing inside. A fan is also arranged inside the air supply duct, and the fan is used to transport the dry and cold air cooled by the evaporator 300 in the air duct to the storage room, so as to cool the storage room. Air entering the storage compartment is circulated again into the air duct. The interior of the air-cooled refrigerator uses the ...

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Abstract

The invention provides a refrigerator and a defrosting control method thereof. The method adjusts voltage applied to an electromagnetic defrosting device according to the surface temperature of an evaporator. When the surface temperature of the evaporator is increased by a certain temperature value at each time, the voltage applied to the electromagnetic defrosting device is reduced, so that the power of the electromagnetic defrosting device is reduced. In the defrosting control method, when the surface of the evaporator is thicker in accumulated frost and lower in temperature, the electromagnetic defrosting device is operated with high power, so that the defrosting efficiency is improved; and when the surface of the evaporator is few in accumulated frost and higher in temperature, the electromagnetic defrosting device is operated with low power, so that quicker surface temperature rise of the evaporator is prevented. The method determines the operation power of the electromagnetic defrosting device according to specific defrosting conditions of the evaporator, guarantees normal and stable surface temperature rise of the evaporator, improves the defrosting efficiency, and optimizesthe working process of the electromagnetic defrosting device.

Description

technical field [0001] The invention relates to a refrigerating and freezing device, in particular to a refrigerator and a defrosting control method thereof. Background technique [0002] After the air-cooled refrigerator has been in operation for a period of time, the evaporator will experience frost, which will affect its operating efficiency. Therefore, the refrigerator needs to defrost the evaporator after a period of cooling. [0003] A defrosting heating wire is provided near the evaporator inside the existing refrigerator, and after the heating wire is energized, the evaporator is heated by heat radiation to achieve the purpose of defrosting. However, in traditional electric heating defrosting, the temperature of the evaporator near the heating wire is higher and the defrosting speed is faster, while the defrosting speed is slower at the position farther from the heating wire, so it is easy to cause uneven defrosting of the evaporator as a whole. In addition, electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00F25D21/08F25D21/00
CPCF25D21/002F25D21/004F25D21/08F25D29/005
Inventor 苗建林李登强李春阳费斌
Owner HAIER SMART HOME CO LTD
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