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Air conditioner defrosting method

An air-conditioning and frosting technology, which is applied to heating methods, space heating and ventilation, and control input related to air characteristics. Energy-saving and comfort-enhancing effects

Active Publication Date: 2016-06-08
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a defrosting method for an air conditioner, which solves the problems of inaccurate judgment of the frosting situation of the outdoor unit in the prior art, resulting in energy waste or the user feels uncomfortable

Method used

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] See figure 1 , which is a flow chart of an embodiment of the air conditioner defrosting method of the present invention.

[0029] like figure 1 As shown, the method for realizing air conditioner defrosting in this embodiment includes the following process steps:

[0030] Step 101: When the air conditioner is running, obtain the real-time coil temperature of the outdoor heat exchanger, the real-time outdoor ambient temperature, the real-time wind speed of the outdoor unit, and the real-time wind pressure difference on both sides of the outdoor heat exchanger.

[0031] When the air conditioner is running, according to the set sampling frequency, parameters such as real-time outdoor heat exchanger coil temperature, real-time outdoor ambient t...

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Abstract

The invention discloses an air conditioner defrosting method. The method includes the steps that when an air conditioner runs, the real-time temperature of a coil pipe of an outdoor heat exchanger, the real-time outdoor environmental temperature, the real-time air speed of an outdoor unit and the real-time pressure difference of air pressure on the two sides of the outdoor heat exchanger are acquired; according to the corresponding relation between the air speed of the outdoor unit and the reference pressure difference, the real-time reference pressure difference corresponding to the real-time air speed of the outdoor unit is acquired; the difference between the real-time pressure difference of air pressure on the two sides of the outdoor heat exchanger and the real-time reference pressure difference is acquired and serves as a real-time pressure difference value; according to the corresponding relation of the air speed of the outdoor unit and the reference pressure difference value, a real-time reference pressure difference value corresponding to the real-time air speed of the outdoor unit is acquired; and under the conditions that the real-time pressure difference value is not smaller than the real-time reference pressure difference value and the real-time temperature of the coil pipe of the outdoor heat exchanger is not higher than a real-time frosting point temperature, it is judged that the frosting condition is met, and defrosting is performed. By means of the method, the problem that in the prior art, judgment on the frosting condition of the outdoor unit is not accurate, and accordingly energy waste is caused or a user feels uncomfortable can be solved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, in particular relates to an air conditioner, and more specifically relates to an air conditioner defrosting method. Background technique [0002] When the air conditioner is heating in winter, because the outdoor heat exchanger absorbs heat from the outdoor air, the temperature around the outdoor heat exchanger is low, and the water vapor in the air will condense into frost and adhere to the surface of the outdoor heat exchanger. If the frost is not defrosted in time, the attached frost will affect the heat exchange capacity of the outdoor heat exchanger, which will reduce the heating capacity of the air conditioner and affect people's comfort. [0003] In order to solve the defrosting problem of the air conditioner, the prior art usually judges whether to start defrosting or quit defrosting according to the outdoor temperature and the running time of the compressor. However, due to the...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/41F24F11/61F24F11/62F24F2110/00F24F2110/10F24F2110/12F24F2140/20
Inventor 许文明于世鹏付裕张明杰罗荣邦袁俊军丁爽李波任志强
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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