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Air conditioner and defrosting method thereof

A technology for air conditioners and electric heaters, applied in refrigeration and liquefaction, compressors with reversible cycles, damage protection, etc. It can solve problems such as indoor temperature fluctuations, unfavorable for rapid defrosting of condensers, and prolonged defrosting time. Accelerate the speed of defrosting, improve the effect of defrosting, and avoid large fluctuations

Active Publication Date: 2017-07-07
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the heat absorbed by the refrigerant is close to that of the auxiliary heating of the electric heater, it is very easy to cause fluctuations in the indoor temperature
At the same time, the diversion of the refrigerant is not conducive to the rapid defrosting of the condenser, resulting in prolonged defrosting time

Method used

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  • Air conditioner and defrosting method thereof

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Embodiment Construction

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0037] The present invention relates to an air conditioner, which includes a compressor 1, an outdoor heat exchanger 4 and an indoor heat exchanger 8 communicated through pipelines, and also includes a first four-way valve 2 and a second four-way valve 3, the first four-way valve The one-way valve 2 includes a1 port, b1 port, c1 port and d1 port, the second four-way valve 3 includes a2 port, b2 port, c2 port and d2 port, and the outlet of the compressor 1 communicates with the a1 port through a pipeline , the inlet of the compressor 1 is connected to the c1 port through a pipeline, the two ends of the outdoor heat exchanger 4 are respectively connected to the b2 port and the d2 port through a pipeline, and the two en...

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Abstract

The present invention relates to an air conditioner and its defrosting method. The air conditioner of the present invention includes a compressor, an outdoor heat exchanger and an indoor heat exchanger communicated through pipelines, and also includes a first four-way valve and a second four-way valve. The first four-way valve includes a1 port, b1 port, c1 port and d1 port, the second four-way valve includes a2 port, b2 port, c2 port and d2 port, the outlet of the compressor is connected with the a1 port through a pipeline, and the The inlet is connected to port c1 through pipes, the two ends of the outdoor heat exchanger are connected to port b2 and port d2 through pipes, the two ends of the indoor heat exchanger are connected to port b1 and port c2 through pipes, and the ports d1 and a2 are connected through pipes . The invention realizes the switching between the heating mode and the defrosting mode by controlling the power-on and power-off of the two four-way valves, thereby speeding up the defrosting speed, improving the defrosting effect, and avoiding large fluctuations in room temperature.

Description

technical field [0001] The invention relates to an air conditioner and a defrosting method thereof, in particular to a heating and cooling air conditioner and a defrosting method for improving the defrosting effect, and belongs to the technical field of air conditioners. Background technique [0002] When the traditional cooling and heating type electric auxiliary heating air conditioner is heating, if the external environment temperature is low, frost will form on the outdoor heat exchanger (also called condenser) after running for a period of time, thereby reducing the heat exchange capacity of the heat exchanger. affect the normal operation of the air conditioner. At this time, the air conditioner will enter the defrosting mode. During defrosting, the refrigerant flows in the cooling direction. After defrosting, the air conditioner can work normally. The defrosting time generally takes about 10 minutes. During the defrosting process, the air conditioner will not heat the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B47/02F25B41/04F25B41/20
CPCF25B13/00F25B47/025F25B49/02F25B2700/21F25B2600/11F25B2600/02F25B2313/02742F25B41/26
Inventor 周向阳
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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