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Air conditioner and control method thereof

A control method and air conditioner technology, which are applied in heating and ventilation control systems, refrigerators, heating methods, etc., can solve the problems of reducing the heat exchange area of ​​the evaporator during defrosting, long defrosting time, and insufficient defrosting heat.

Active Publication Date: 2019-02-26
GREE ELECTRIC APPLIANCES INC +1
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  • Abstract
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Problems solved by technology

[0004] This method is equivalent to reducing the heat exchange area of ​​the evaporator (indoor side) during defrosting. Since a part of the indoor heat exchanger acts as a condenser to supply indoor heat, the defrosting heat supplied to the outdoor heat exchanger will be insufficient. , which will lead to long defrosting time and unclean defrosting

Method used

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  • Air conditioner and control method thereof
  • Air conditioner and control method thereof

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Embodiment Construction

[0062] The direction of the arrow in the figure is the air flow direction.

[0063] see in conjunction Figure 1 to Figure 4 As shown, according to the embodiment of the present invention, the air conditioner includes a compressor 1, an indoor heat exchanger 2, a throttling device 3, a first bypass pipeline 4 and an outdoor heat exchanger 5, and the throttling device 3 is arranged in the indoor heat exchanger On the pipeline between the heat exchanger 2 and the outdoor heat exchanger 5, the first end of the first bypass pipeline 4 is connected to the outdoor heat exchanger 5 for delivering high-temperature refrigerant to the outdoor heat exchanger 5, and the first bypass pipeline The pipeline 4 is provided with a first control valve 6 for controlling the opening and closing of the first bypass pipeline 4 .

[0064] When the air conditioner is in the low-temperature heating condition, the first bypass pipe 4 can control the first bypass pipeline 4 to deliver high-temperature r...

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Abstract

The invention provides an air conditioner and a control method thereof. The air conditioner comprises a compressor (1), an indoor heat exchanger (2), a throttling device (3), a first by-pass line (4)and an outdoor heat exchanger (5), wherein the throttling device (3) is arranged on a pipeline between the indoor heat exchanger (2) and the outdoor heat exchanger (5), a first end of the first by-pass line (4) is connected to the outdoor heat exchanger (5), the first by-pass line (4) is used for conveying a high-temperature refrigerant to the outdoor heat exchanger (5), and a first control valve(6) used for controlling the on-off state of the first by-pass line (4) is arranged on the first by-pass line (4). According to the air conditioner, the defrosting cycle of the air conditioner can beprolonged, the defrosting time of the air conditioner can be shortened, and the indoor comfort can be improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to an air conditioner and a control method thereof. Background technique [0002] When the heat pump air conditioner is heating at low temperature, due to the influence of frosting and defrosting, it will cause large fluctuations in indoor temperature and poor comfort. Therefore, various means are adopted in the prior art to reduce the impact of defrosting on the indoor temperature. [0003] In the Chinese invention patent with application number 201210311278.1, an air conditioner is disclosed. By dividing the indoor heat exchanger into two parts (the first indoor heat exchanger and the second indoor heat exchanger), defrosting is required on the outdoor side , the four-way valve is switched to defrost. After passing through the outdoor heat exchanger, the high-temperature refrigerant first flows through the second indoor heat exchanger, then flows through the...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B43/00F24F11/00F24F110/12F25B41/20F25B41/30
CPCF24F11/00F25B13/00F25B43/00F24F2110/12
Inventor 陈姣冯青龙何振健秦晓柯刘雷明林金煌邹云辉
Owner GREE ELECTRIC APPLIANCES INC
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