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Refrigerator defrosting device

A technology for refrigerators and cold rooms, which is applied in the field of defrosting devices for refrigerators, which can solve the problems affecting the operation of compressors, affecting the cooling efficiency, and affecting the cooling efficiency of refrigerators, so as to reduce the formation of frost and improve the operating efficiency

Inactive Publication Date: 2014-03-26
SUZHOU NIUWU ERGUAN ELECTRICAL APPLIANCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As a refrigeration system, the refrigerator can run for a long time to keep the cabinet at a low temperature, but as the refrigerator runs for a long time, thicker and thicker frost layers will appear, and the frost layer will affect the work of the compressor and affect the cooling efficiency. The power supply is disconnected and stops working to make it defrost, which will affect the cooling efficiency of the refrigerator

Method used

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  • Refrigerator defrosting device

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Embodiment Construction

[0019] specific implementation plan

[0020]

[0021] The present invention will be further described below in conjunction with the accompanying drawings: a refrigerator defrosting device, consisting of a screw compressor (1), an evaporator (2), a condenser (3), a timer (8), a time relay (7), Intermediate relay (6), four-way valve (4), drain port (10), expansion valve (5), refrigerator compartment (9), timer (8) connected to time relay (7) normally closed contact, time relay (7) Connected to the intermediate relay (5), the intermediate relay (5) is connected to the electromagnetic coil of the four-way valve (4), and the four ports of the four-way valve (4) are respectively connected to the screw compressor (1) and the evaporator (2) , the condenser (3) is connected, the evaporator (2) is connected with the condenser phase (3) through the expansion valve (5), and the refrigerating chamber is connected with the drain port.

[0022] In the specific implementation, there are ...

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Abstract

The invention provides a refrigerator defrosting device. The refrigerator defrosting device is composed of a screw rod type compressor, an evaporator, a condenser, a timer, a time relay, an intermediate relay, a four-way valve, a water drainage opening, an expansion valve and a refrigerating chamber, wherein the timer is connected with the time relay, the time relay is connected with the intermediate relay, the intermediate relay is communicated with a four-way valve electromagnetic coil, the four-way valve is respectively connected with the screw rod type compressor, the evaporator and the condenser, the evaporator is connected with the condenser through the expansion valve, the refrigerating chamber is connected with the water drainage opening, when a refrigerator operates for a certain time, the flowing direction of air among the compressor, the evaporator and the condenser is changed by the four-way valve, the refrigerating chamber is made to perform heating defrosting, and the refrigerator returns to a normal refrigerating state after the deforesting is performed for a period of time.

Description

[0001] Technical field [0002] [0003] The invention relates to a defrosting device, in particular to a defrosting device for a refrigerator. [0004] Background technique [0005] [0006] A refrigerator is a refrigeration device that maintains a constant low temperature, usually consisting of a compressor, an evaporator and a condenser [0007] As a refrigeration system, the refrigerator can run for a long time to keep the cabinet at a low temperature, but as the refrigerator runs for a long time, thicker and thicker frost layers will appear, and the frost layer will affect the work of the compressor and affect the cooling efficiency. The power supply is disconnected and stops working to defrost, which will affect the cooling efficiency of the refrigerator. [0008] Contents of the invention [0009] [0010] In order to overcome the above problems, the present invention provides a defrosting device, which can defrost the refrigerator at regular intervals to ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B47/02F25D21/14
Inventor 杨贻方
Owner SUZHOU NIUWU ERGUAN ELECTRICAL APPLIANCE TECH
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