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Refrigerator evaporator defrosting method

A technology for evaporators and refrigerators, used in defrosting, household appliances, household refrigeration devices, etc., can solve problems such as increasing system energy consumption, and achieve the effect of reducing manufacturing costs and energy consumption

Inactive Publication Date: 2015-02-04
HISENSE RONSHEN GUANGDONG REFRIGERATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the automatic defrosting system provided by the invention does not need the defrosting heater to automatically defrost the evaporator, it needs to build a special defrosting branch circuit
Additional components such as solenoid valves are added, and the compressor needs to be started for exhaust heating during defrosting, which increases the energy consumption of the system

Method used

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Embodiment Construction

[0021] The present invention will be further described below in combination with specific embodiments. Wherein, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, Enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that certain known structures and their descriptions in the drawings may be omitted.

[0022] Such as figure 1 As shown, a method for defrosting a refrigerator evaporator, first preset the shutdown temperature T5 of the refrigeration system 20, preset the defrosting temperature T2 of the refrigerator compartment, and T5<T2, and the instantaneous temperature of the refrigeration temperature sensor 27 is Tt. It should be noted that T5 ...

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Abstract

The invention relates to the technical field of refrigeration, in particular to a refrigerator evaporator defrosting method. The refrigerator evaporator defrosting method comprises the following steps that S1, in a power-on state of a refrigeration system, when the temperature of a cold storage chamber is lowered to the preset halting temperature, the refrigeration system stops, and in addition, a cold storage fan is closed; S2, in a halting state of the refrigeration system, when the temperature of the cold storage chamber rises to the preset defrosting temperature of the cold storage chamber, the cold storage fan starts, and air circulation between the cold storage chamber and an evaporator is formed for carrying out defrosting on the evaporator. The refrigerator evaporator defrosting method has the advantages that in the halting state of the refrigeration system, the rising degree of the temperature of the cold storage chamber is judged, the cold storage fan is automatically started, the air circulation between the cold storage chamber and the evaporator is formed, and warm air flow of the cold storage chamber can be utilized for carrying out defrosting on the evaporator, so the evaporator can realize automatic defrosting, the additional increase of defrosting components is not needed, and the manufacturing cost and the energy consumption are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a method for defrosting an evaporator of a refrigerator. Background technique [0002] With the improvement of people's living standards, consumers have higher and higher requirements for the quantity and quality of food stored in refrigerators, and refrigerators with large volume and multiple temperature zones are gradually sought after by the market. However, when the water molecules evaporated from the food and the water molecules of the outside air flow through the evaporator of the refrigeration system through the air duct in the refrigerator room, frost will gradually form on the surface of the evaporator due to the sharp drop in temperature. The thermal conductivity of the layer is extremely poor, which will affect the heat exchange rate between the evaporator and the refrigerating chamber, and will increase the load on the compressor, making it difficult to drop the...

Claims

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Application Information

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IPC IPC(8): F25D21/12
CPCF25D21/125
Inventor 李宇李成武姚龙姚飞程曦
Owner HISENSE RONSHEN GUANGDONG REFRIGERATOR
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