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Refrigerating circulator of straight-cooled refrigerator

A refrigeration cycle and refrigerator technology, which is applied to household refrigeration devices, household refrigerators, refrigerators, etc., can solve the problems of not considering the amount of refrigerant in the compressor, the overload of the expansion valve 13, and the lack of equipment to adjust the flow of refrigerant, etc. To achieve the best system operation, reduce total power consumption, and achieve high efficiency

Inactive Publication Date: 2009-02-04
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the conventional direct-cooling refrigerator refrigerating cycle device has the following disadvantages: the compressor 11 is not considered to discharge a prescribed amount of refrigerant. load
In particular, when the refrigerating room evaporator 15 is closed, in order to prevent the expansion valve 13 from being overloaded, it is necessary to adjust the refrigerant flow rate flowing into the freezing room evaporator 14, but conventional refrigeration cycle devices are not equipped with a structure for adjusting the refrigerant flow rate.

Method used

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  • Refrigerating circulator of straight-cooled refrigerator
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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0024] Such as figure 2 As shown, the direct-cooling refrigerator refrigeration cycle device of the first embodiment of the present invention includes a compressor 100, a condenser 200, an expansion valve 310 for the freezer, two or more expansion valves 321, 322 for the freezer, and an evaporator for the freezer. 400, the evaporator 500 for the refrigerator, and the flow regulator 600.

[0025] The components of the refrigeration cycle device are connected to each other by refrigerant pipes 16 .

[0026] The compressor 100 plays the role of compressing the refrigerant; although not shown in the figure, the compressor 100 can be a dual capacity compressor whose compression amount changes according to the direction of rotation. An example of a dual capacity compressor is described in Korean Patent Application No. 10-2001-0064083, but the prese...

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Abstract

The invention comprises a compressor for compressing the refrigerant, a condenser for condensing the compressed refrigerant by the compressor, a flow regulator for regulating the refrigerant flow to selectively distribute the condensed refrigerant, a expansion valve for the freezing room, a evaporator for the freezing room, more than two expansion valves for the cold room and a evaporator for the cold room.

Description

technical field [0001] The invention relates to a refrigerating cycle device of a direct-cooling refrigerator, especially a refrigerating cycle device that can make the operating state of the refrigerating cycle device optimal when the compressor operates at a relatively low cooling force. Background technique [0002] Generally, a refrigerator is a device for freshly storing food for a long time by lowering the temperature inside the cabinet through a refrigeration cycle of compression-condensation-expansion-evaporation of the refrigerant, and is a daily necessity. Among them, direct-cooling refrigerators are equipped with evaporators in the freezer and refrigerator respectively. figure 1 The refrigerating cycle device of the direct cooling refrigerator will be described in detail. [0003] The refrigeration cycle device of the direct cooling refrigerator includes a compressor 11 , a condenser 12 , an expansion valve 13 , an evaporator 14 for a freezer compartment, and an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/06F25D11/02
CPCF25B39/028F25B41/42
Inventor 河三哲辛宗民江成姬金现黄俊现金宗权
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD