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Heat pump system of air-conditioner, air-conditioner and defrosting control method of air-conditioner

A technology of a heat pump system and a control method, which is applied in air conditioning systems, heating methods, space heating and ventilation, etc., which can solve the problems of reduced comfort and large indoor temperature fluctuations, so as to improve comfort and avoid large fluctuations in indoor temperature differences Effect

Pending Publication Date: 2020-04-17
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the invention is that when the air conditioner stops heating and absorbs heat from the room during defrosting, the indoor temperature fluctuates greatly and the comfort is reduced

Method used

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  • Heat pump system of air-conditioner, air-conditioner and defrosting control method of air-conditioner

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Embodiment Construction

[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.

[0051] In an embodiment of the present invention, a heat pump system of an air conditioner is provided, such as figure 1 As shown, it includes a compressor 1 , an indoor heat exchanger 2 , a first outdoor heat exchanger 3 and a second outdoor heat exchanger 4 connected in parallel, a first four-way valve...

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Abstract

The invention provides a heat pump system of an air-conditioner, the air-conditioner and a defrosting control method of the air-conditioner. The heat pump system comprises a compressor, an indoor heatexchanger, a first outdoor heat exchanger, a second outdoor heat exchanger, a first four-way valve and a second four-way valve, wherein the first outdoor heat exchanger and the second outdoor heat exchanger are connected in parallel; a first valve opening of the first four-way valve is connected with the indoor heat exchanger; a second valve opening of the first four-way valve is connected with an air suction opening of the compressor; a third valve opening of the first four-way valve is connected with a fourth valve opening of the second four-way valve; a fourth valve opening of the first four-way valve is connected with an exhausting opening of the compressor; a first valve opening of the second four-way valve is connected with the first outdoor heat exchanger; a second valve opening ofthe second four-way valve is connected with the indoor heat exchanger; and a third valve opening of the second four-way valve is connected with the second outdoor heat exchanger. By means of the heatpump system of the air-conditioner, the air-conditioner and the defrosting control method of the air-conditioner, air-conditioner heating is continuous in the defrosting period, thus the indoor temperature keeps steady, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a heat pump system of an air conditioner, an air conditioner and a defrosting control method thereof. Background technique [0002] During the heating operation of the air conditioner in winter, the outdoor heat exchanger acts as an evaporator. Due to the low ambient temperature, the surface temperature of the outdoor heat exchanger also drops accordingly. When the surface temperature of the outdoor heat exchanger is low When the dew point temperature of the surrounding air is lower than 0°C, when the outdoor air flows through the outdoor heat exchanger, the moisture in the cooled air will precipitate, thus forming a frost layer on the outdoor heat exchanger. Due to the existence of the frost layer, firstly, the heat transfer coefficient on the surface of the heat exchanger decreases, and secondly, the gap between the copper pipes decreases, and the wind resistance incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F11/41F24F11/64F24F11/65F24F11/84F24F11/88F25B13/00F25B41/04F25B47/02F25B41/20
CPCF24F5/001F24F11/41F24F11/64F24F11/65F24F11/84F24F11/88F25B13/00F25B47/02F25B41/20
Inventor 胡亚峰郭玮刘仁东韩雷
Owner NINGBO AUX ELECTRIC
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