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., can solve problems such as unfavorable rapid defrosting of condensers, fluctuations in indoor temperature, and prolonged defrosting time, etc. Achieve the effect of improving the defrosting effect, speeding up the defrosting speed, and avoiding large fluctuations

Active Publication Date: 2015-10-21
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • 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 invention relates to an air conditioner and a defrosting method thereof. The air conditioner comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger, wherein the compressor, the outdoor heat exchanger and the indoor heat exchanger are communicated through a pipeline. The air conditioner further comprises a first four-way valve and a second four-way valve. The first four-way valve comprises a port a1, a port b1, a port c1 and a port d1. The second four-way valve comprises a port a2, a port b2, a port c2 and a port d2. An outlet of the compressor is communicated with the port a1 through a pipeline, and an inlet of the compressor is communicated with the port c1 through a pipeline. The two ends of the outdoor heat exchanger are communicated with the port b2 and the port d2 through pipelines respectively. The two ends of the indoor heat exchanger are comminuted with the port b1 and the port c2 through pipelines respectively. The port d1 and the port a2 are communicated through a pipeline. Through control over on-off of the two four-way valves, switching between a heating mode and a defrosting mode is achieved, so that the defrosting speed is increased, the defrosting effect is improved, and large fluctuation of the room temperature is avoided.

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 Applications(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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