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Defrosting control method and device and air conditioner

A control method and technology for air conditioners, which are applied in heating and ventilation control systems, mechanical equipment, heating and ventilation safety systems, etc., can solve the problems of intermittent shutdown of internal units, affecting user experience, etc. Improve the effect of defrosting and improve user experience

Active Publication Date: 2019-07-19
NINGBO AUX ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this defrosting mode, there will be intermittent shutdowns of the internal unit, which will affect user experience

Method used

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  • Defrosting control method and device and air conditioner
  • Defrosting control method and device and air conditioner
  • Defrosting control method and device and 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] Please refer to figure 1 , is a schematic diagram of the composition of the air conditioner 10 provided by the embodiment of the present invention. The air conditioner 10 includes an external unit 100 and an internal unit 200. In the external unit 100, the first interface D of the four-way valve 101 is connected to the exhaust pipe 103 of the compressor 102, and the second interface C of the four-way valve 101 It is connected with the inlet pipe 105 of the outdoor heat exchanger 104, and the third interface S of the four-way valve 101 is connected with the return air pipe 106 of the compressor 102; the inlet pipe 105 of the outdoor heat exchanger 104 includes a first inlet pipe 1051 and a second inlet pipe 1051. The two inlet pipe ...

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PUM

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Abstract

The invention provides a defrosting control method and device and an air conditioner, and relates to the technical field of air conditioners. The method comprises the following steps that in the heating mode, whether the air conditioner meets the defrosting control condition or not is judged according to the detected outdoor environment temperature, defrosting temperature and compressor operationtime, when the air conditioner meets the defrosting control condition, a second valve and a fourth valve are controlled to be closed, a first valve and a third valve are controlled to be opened, so that one part of refrigerant in an exhaust pipe enters an indoor unit heat exchanger through a four-way valve, and the other part of refrigerant enters an outdoor unit heat exchanger through the first valve and a second inlet pipe. Therefore, the part, communicating with a first inlet pipe and a first outlet pipe, in the outdoor unit heat exchanges normally operates in a heating mode, an air conditioner indoor unit does not need to be stopped, the part, communicating with the second inlet pipe and a second outlet pipe, in the outdoor unit heat exchanger operates in a refrigerating mode, outdoorunit defrosting is carried out, the effect of defrosting without indoor unit halt is achieved, the problem that heating cannot be achieved in the defrosting process in the prior art is effectively solved, and use experience is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a defrosting control method, device and air conditioner. Background technique [0002] With the development of society, people's living standards are constantly improving, and the quality of life they pursue is getting higher and higher, and the use of air conditioners is becoming more and more common. At present, when the air conditioner is in heating operation, condensed water will be generated on the surface of the condenser. Due to the low temperature outside environment, the condensed water will condense on the surface of the condenser to form a frost layer. As the frost layer thickens, it will affect the heat transfer efficiency of the condenser. , thereby affecting the heating effect. [0003] In order to solve the problem that the accumulation of frost layer affects the heating effect, the frosting situation is generally judged by detecting the temperature of th...

Claims

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Application Information

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IPC IPC(8): F24F11/42F24F11/61F24F11/84F24F11/65F24F11/64F24F140/20
CPCF24F11/42F24F11/61F24F11/64F24F11/65F24F11/84F24F2140/20
Inventor 刘志财郑根闫赞扬
Owner NINGBO AUX ELECTRIC
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