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Defrosting control method and device of air-cooled refrigerator

An air-cooled refrigerator and control method technology, which is applied in household refrigeration equipment, defrosting, refrigeration and liquefaction, etc., can solve the problems of inability to know exactly the frosting and defrosting conditions on the cooler, long defrosting time, and control accuracy Inadequate problems, to avoid the loss of refrigeration capacity of the refrigerator, avoid defrosting can not be accurately triggered and closed effect

Active Publication Date: 2017-04-26
HAIER SMART HOME CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defrosting time of the above control method is relatively long, the power consumption of the process is large, the control accuracy is poor, and it is impossible to know the frosting situation and defrosting situation of the cooler

Method used

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  • Defrosting control method and device of air-cooled refrigerator
  • Defrosting control method and device of air-cooled refrigerator
  • Defrosting control method and device of air-cooled refrigerator

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Embodiment Construction

[0026] Embodiments of the present invention provide a defrosting control method and device for an air-cooled refrigerator, which determines the defrosting start point and shutdown point by detecting the air pressure difference before and after the airflow passes through the evaporator, figure 1 It is a schematic structural diagram of an air-cooled refrigerator to which the defrosting control method of the air-cooled refrigerator according to an embodiment of the present invention is applicable. The air-cooled refrigerator 10 may include a box body 100 , and one or more storage compartments and an air duct 200 are defined in the box body 100 . The plurality of storage compartments can have different temperature ranges for providing different storage environments. For example, a plurality of storage compartments may include a refrigerating compartment 110 and a freezing compartment 120. In addition, the storage compartments may be flexibly provided with quick-freezing compartmen...

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Abstract

The invention provides a defrosting control method and device of an air-cooled refrigerator. The defrosting control method of the air-cooled refrigerator comprises the following steps: detecting an air pressure difference of air supply flow of the air-cooled refrigerator before and after the air supply flow passes through an evaporator of the air-cooled refrigerator; judging whether the air pressure difference of the air supply flow is greater than a preset first air pressure difference threshold value; if the air pressure difference of the air supply flow is greater than the preset first air pressure difference threshold value, triggering the air-cooled refrigerator to start a defrosting procedure; and if the air pressure difference of the air supply flow is not greater than the preset first air pressure difference threshold value, judging whether the operation rate of a compressor of the air-cooled refrigerator is greater than a preset operation rate threshold value, and if the operation rate of the compressor is greater than the preset operation rate threshold value, judging whether the frosting thickness of the evaporator reaches a level where defrosting is needed. Therefore, defrosting can be carried out according to the actual frosting condition of the evaporator, and the refrigerator cold loss caused by frequent defrosting and the reduction of the heat exchange efficiency due to untimely defrosting are avoided.

Description

technical field [0001] The invention relates to refrigerator control, in particular to a defrosting control method and device for an air-cooled refrigerator. Background technique [0002] Air-cooled technology uses a built-in hidden cooler (such as the evaporator of the refrigerant circulation system) to cool the air flowing through it, and the fan forces the cold air to circulate, so that the cold air is evenly distributed in each compartment of the refrigerator to achieve cooling. The cooling speed of the air-cooled refrigerator is faster. Especially for large-capacity refrigerators, it is more convenient to use. Air-cooled refrigerators are mainly used in large-capacity products above 280L. Due to the relatively uniform temperature inside the refrigerator compartment, precise temperature control, and good fresh-keeping effect, it has gradually become the focus of refrigerator development. [0003] However, when the circulating air flow of the existing air-cooled refrige...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00F25D21/08F25B47/02
CPCF25B47/02F25B2347/02F25B2700/197F25D21/08F25D29/005
Inventor 苗建林徐同赵斌堂李春阳
Owner HAIER SMART HOME CO LTD
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