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Defrosting apparatus for refrigerator and defrosting method thereof

A technology for refrigerators and defrosting heaters, which is applied in defrosting, household refrigeration devices, household appliances, etc. It can solve the problems of increased temperature in the box and inability to operate the refrigeration cycle, etc., to increase density, improve defrosting efficiency and heat exchange Efficiency, loss most effect

Inactive Publication Date: 2008-01-02
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, when heating defrosting by the defrosting heater and auxiliary heater, the refrigerating cycle cannot be operated during defrosting because the heat of the defrosting heater and auxiliary heater flows into the tank, which has the effect of causing the temperature inside the tank to be raised. question

Method used

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  • Defrosting apparatus for refrigerator and defrosting method thereof
  • Defrosting apparatus for refrigerator and defrosting method thereof
  • Defrosting apparatus for refrigerator and defrosting method thereof

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Embodiment Construction

[0032] The defrosting device and defrosting method of the refrigerator of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0033] The interior upper side of the cabinet 1 is divided into a freezer compartment 2 , and the lower side is divided into a refrigerator compartment 3 , and a cold air circulation duct 12 for circulating cold air is installed between the freezer compartment 2 and the refrigerator compartment 3 .

[0034] On the cold air duct 10 at the freezer compartment 2 rears, the circulating air cooled by the evaporator 5 is provided with a sending fan 9 sent to the freezer compartment.

[0035] For defrosting, a plurality of defrosting heaters 6 are installed on the evaporator 5, and an auxiliary heater 7 for transmitting radiant heat is installed on the lower part of the evaporator 5 during defrosting.

[0036] In addition, the evaporator 5 is also equipped with a plurality of heat transfer elem...

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PUM

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Abstract

The present invention is refrigerator heating defrosting device and method. The defrosting device includes a defrosting heater around the evaporator, an auxiliary heater and a heating body set on the evaporator for being turned on periodically. The defrosting method includes setting the defrosting heater, the auxiliary heater and the heating body; and making the heating body operate periodically and stopping the compressor and the blower for certain time after the pressure loss in the evaporator reaches set value. Compared with available technology, the present invention has longer defrosting period, short defrosting time, raised defrosting efficiency and heat exchange efficiency, and reduced power consumption.

Description

technical field [0001] The invention relates to electric heating defrosting of a refrigerator, in particular to a refrigerator defrosting device and a defrosting method thereof. Background technique [0002] Refrigerator is a device that keeps the food fresh for a certain period of time through the repeated compression-condensation-expansion-evaporation cooling cycle of the refrigerant to lower the temperature in the box. Therefore, the refrigerator is an indispensable household appliance in life. [0003] This kind of refrigerator uses a compressor to raise the temperature and pressure of a low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant; the refrigerant flowing out of the compressor is condensed by a condenser; The refrigerant flowing out of the device is decompressed; the refrigerant passing through the above-mentioned expansion valve is evaporated in a low-pressure state, so that the evaporator that absor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/08
Inventor 辛鍾玟沈在性高永桓崔峰峻黄畯鉉鄭泳
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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