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Heat pump air conditioner and its defrosting method

An air conditioner and heat pump technology, which is applied in the field of heat pump air conditioners and their defrosting, can solve the problems of poor energy efficiency during defrosting of heat pump air conditioners, and achieve the effects of eliminating resource waste, ensuring defrosting requirements, and improving energy efficiency

Active Publication Date: 2018-10-23
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a heat pump air conditioner and its defrosting method to solve the problem of poor energy efficiency in defrosting heat pump air conditioners in the prior art

Method used

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  • Heat pump air conditioner and its defrosting method

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Embodiment Construction

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

[0021] Please refer to figure 1 As shown, the present invention provides a heat pump air conditioner, comprising a compressor 1, an evaporator 2, an auxiliary connecting line 3, a pumping device 4, a condenser 5 and a throttling device 6, and the auxiliary connecting line 3 is connected to the evaporator Between the outlet of the condenser 2 and the inlet of the condenser 5, and in parallel with the compressor 1, the auxiliary connecting pipeline 3 is provided with a first on-off valve 7, and the pumping device 4 is connected in parallel with the throttling device 6.

[0022] According to the heat pump air conditioner of the present invention, when defrosting is required, only the compressor 1 needs to be turned off, the refrigerant flows through the condenser 5 to the evaporator 2 ...

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Abstract

The invention discloses an air conditioner for a heat pump and a defrosting method of the air conditioner for the heat pump. The air conditioner for the heat pump comprises a compressor (1), an evaporator (2), an auxiliary connecting pipeline (3), a pumping device (4), a condenser (5) and a throttling device (6). The auxiliary connecting pipeline (3) is connected between an outlet of the evaporator (2) and an inlet of the condenser (5) and connected with the compressor (1) in parallel. A first switching valve (7) is arranged on the auxiliary connecting pipeline (3). The pumping device (4) is connected with the throttling device (6) in parallel. According to the air conditioner for the heat pump, the problem that in the prior art, the energy efficiency is poor during defrosting of an air conditioner for a heat pump can be solved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, and in particular, to a heat pump air conditioner and a defrosting method thereof. Background technique [0002] When the heat pump is in normal operation, the low temperature side is the evaporator and the high temperature side is the condenser. The heat pump absorbs heat from the low temperature side and transfers the heat to the high temperature side, thereby providing the temperature of the high temperature side and meeting the high temperature demand of the high temperature side. When the heat pump is running in winter, the ambient temperature on the low-temperature side is very low most of the time, and the temperature of the refrigerant inside the evaporator is lower than zero. The heat exchange effect is reduced, resulting in a decrease in the heating capacity of the entire unit, which cannot meet the heating demand. At this time, it is necessary to defrost the evaporator. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/41F25B47/02
CPCF24F11/30F24F11/41F24F2110/00F24F2140/30F25B47/02
Inventor 孙雷鸣程琦黄凯亮钟海玲胡乾龙吉剑林徐美俊
Owner GREE ELECTRIC APPLIANCES INC
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