Defrosting device for refrigerator

A technology for refrigerators and cabinets, which is applied in the field of refrigerator defrosting devices, and can solve problems such as product safety decline, cooling efficiency decline, and increased freezing load, so as to prevent temperature rise, ensure safety, and prevent safety accidents.

Inactive Publication Date: 2004-02-11
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] But the defrosting heater of the prior art with above-mentioned structure has following shortcoming: when running defrosting process, the heat that produces by defrosting heater 6,7 makes casing internal temperature rise, so increases the weight to the next refrigerating cycle. The initial refrigeration loa

Method used

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  • Defrosting device for refrigerator
  • Defrosting device for refrigerator
  • Defrosting device for refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 as figure 2 As shown, a freezer compartment 2 is arranged inside the box body 1 that constitutes the shape of the refrigerator; a cold air passage 10 is arranged at the rear of the freezer compartment 2, and the cold air inside the box flows into the cold air passage 10 for heat exchange; A machine room 4 is arranged below, and a plurality of refrigerating cycle components such as compressors are arranged in the machine room 4 .

[0022] The refrigerator is a side-by-side refrigerator divided into a freezer compartment 2 and a refrigerator compartment left and right by a partition.

[0023] An evaporator 5 is arranged on the cold air channel 10, and the evaporator 5 uses the heat absorption effect of the medium to exchange heat with the cold air; the upper part of the evaporator 5 is provided with a blower fan 9, and the motor 8 drives the blower fan 9 to perform forced circulation of cold air. The upper part of the cold air channel 10 is provided with a col...

Embodiment 2

[0032] Embodiment 2 The refrigerator defrosting device in the second embodiment of the present invention does not need figure 2 Shown water storage tank 21 obtains continuous water supply, just can remove the frost on the evaporator 5.

[0033] Such as image 3 As shown, in the refrigerator defrosting device of the second embodiment of the present invention, in order not to obtain external water supply from the water storage tank 21, and reuse the water melted from the evaporator 5, between the water collection bucket 24 and the water storage tank 21 A circulation pipeline 27 is provided, and a circulation pump 28 is provided on the circulation pipeline.

[0034] The working process of the refrigerator with the above-mentioned structure is basically the same as that of the first embodiment, except that when the defrosting operation is performed, after the water melted from the evaporator 5 is collected into the water collection bucket 24, the water is circulated along the wa...

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PUM

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Abstract

The defroster for refrigerator includes cold air path for circulating cold air inside the case, evaporator set on the cold air path to constitute freezing circulation, water storage tank over the evaporator to store normal temperature water, valve connected between the water storage tank and the evaporator to supply water to the evaporator selectively, and the water collecting tank below the evaporator to collect thawed water from the evaporator. In addition, between the water collecting tank and the water storage tank, there may be circulating pipeline with circulating pump to pump water from the water collecting tank to the water storage tank. Utilizing water in normal temperature to eliminate frost attached to the evaporator can avoid temperature rise during defrosting and raise freezing efficiency.

Description

technical field [0001] The invention relates to a refrigerator, in particular to a refrigerator defrosting device which utilizes water at normal temperature to remove frost generated by an evaporator. Background technique [0002] A general refrigerator is a device that repeatedly performs a refrigeration cycle of compression-condensation-expansion-evaporation of the medium to lower the temperature inside the box and maintain the freshness of food for a certain period of time. A refrigerator is one of the necessities in life. [0003] In a refrigerator, a compressor, a condenser, an expansion valve, and an evaporator form a refrigeration cycle as basic constituent parts. The compressor raises the temperature and pressure of the low-temperature and low-pressure gas medium into a high-temperature and high-pressure gas medium; the condenser condenses the medium flowing in from the compressor; the diameter of the expansion valve is narrower than that of other parts, and decompr...

Claims

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Application Information

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IPC IPC(8): F25D21/12
Inventor 金铁焕辛钟玟崔峰峻高永桓郑泳
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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