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Air conditioning plant and control method thereof

An air-conditioning device and a technology of a control method, which are applied in heating and ventilation control systems, refrigerators, heating methods, etc., can solve problems such as lowering of indoor ambient temperature and affecting user comfort, and achieve maintaining heating function and good defrosting effect , Improve the effect of comfort experience

Inactive Publication Date: 2017-07-11
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During defrosting, the internal fan stops running, and the operating mode of the air conditioning unit is cooling, and the temperature is relatively low. Moreover, the defrosting process usually lasts for 3 to 10 minutes. During this process, the indoor ambient temperature will drop, affecting user comfort. sex

Method used

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  • Air conditioning plant and control method thereof
  • Air conditioning plant and control method thereof
  • Air conditioning plant and control method thereof

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Embodiment Construction

[0043] The present invention firstly provides an air conditioner, figure 1 is a schematic structural block diagram of an air conditioner according to an embodiment of the present invention. The air conditioner provided by the present invention includes a compressor 10 , an indoor heat exchanger 20 , a first throttling device 30 and an outdoor heat exchanger 40 which are sequentially connected to form a main refrigerant circuit. The compressor 10 is configured to compress and discharge the refrigerant sucked in by it, the indoor heat exchanger 20 is configured to exchange heat between the refrigerant and the indoor air, and the first throttling device 30 is configured to throttle the refrigerant flowing out of the indoor heat exchanger 20 . The outdoor heat exchanger 40 is configured to exchange heat between the refrigerant and the outdoor air.

[0044] Specifically, the compressor 10 sucks in a low-pressure refrigerant, compresses the low-pressure refrigerant to form a high-t...

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Abstract

The invention relates to an air conditioning plant and a control method thereof. The air conditioning plant comprises a compressor, an indoor heat exchanger, a first throttling device and an outdoor heat exchanger, which are connected in order so as to form a refrigerant main loop, wherein the compressor is used for compressing and exhausting a sucked refrigerant, and the indoor heat exchanger is used for enabling the refrigerant to exchange heat with indoor air; the first throttling device is used for throttling the refrigerant flowing out from the indoor heat exchanger and reducing pressure of the refrigerant, and the outdoor heat exchanger is used for enabling the refrigerant to exchange heat with outdoor air; the outdoor heat exchanger is provided with a first flowing path and a second flowing path, and the first flowing path and the second flowing path are used for enabling the refrigerant to flow past and are in parallel. The air conditioning plant further comprises a by-pass pipeline, and the by-pass pipeline is used for selectively enabling part of the refrigerant exhausted by the compressor to pass through in a branch mode to directly flow into the second flowing path, so that the heat of the part of the refrigerant is utilized to defrost the outdoor heat exchanger. The air conditioning plant realizes the defrosting and heating at the same time and improves the comfortable experience.

Description

technical field [0001] The invention relates to air conditioning technology, in particular to an air conditioning device and a control method thereof. Background technique [0002] The air conditioner performs heating operation in a low temperature environment, and frosting will inevitably occur. Frosting on the heat exchanger of the outdoor unit will seriously affect its heat exchange effect, resulting in lower and lower outlet air temperature of the indoor unit, seriously affecting the comfort of users. In order to ensure a comfortable outlet air temperature, when the heat exchanger of the outdoor unit is frosted to a certain extent, it has to be defrosted. In the defrosting process of the prior art, the outdoor heat exchanger is usually used as the condenser, the indoor heat exchanger is used as the evaporator, both the internal and external fans are stopped, and the high-temperature and high-pressure refrigerant discharged from the compressor enters the outdoor heat exc...

Claims

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Application Information

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IPC IPC(8): F24F11/00F24F13/30F25B47/02
CPCF24F11/30F24F11/42F24F11/70F24F11/84F24F13/30F25B47/025
Inventor 张宪强贺世权张均岩杨晓青焦广祥
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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