Air conditioner defrosting control method

A control method and air conditioner technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problems of unclean defrosting, non-melting of frost, and high temperature

Inactive Publication Date: 2018-09-04
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method of judging frosting requires high accuracy of the outdoor coil sensor, and it is more accurate when the outdoor heat exchanger has a good shunt flow. Once the outdoor heat exchanger does not have a good shunt flow, the outdoor coil sensor will It is impossible to accurately determine the evaporation temperature of each branch f

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  • Air conditioner defrosting control method
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Embodiment Construction

[0018] In order to make the embodiments, technical solutions and advantages of the present invention more obvious, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Example. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. For example, although the various steps of the method of the present invention are described in a specific order in the present application, these orders are not limiting, and those skilled in the art can perform the steps in different orders without departing from the basic principles of the present invention. Follow the steps described.

[0019] The existing technology mainly judges the degr...

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Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner defrosting control method. To more accurately judge the time for defrosting, the provided defrosting control method comprises the steps that under the circumstance that an air conditioner is in a heating work condition, the real-time current value of an outdoor draught fan and the real-time temperature value of an indoor coil pipe are detected; the real-time current value of the outdoor draught fan is compared with the selected first standard current value, the selected second standard current value and the selected third standard current value, and a first comparison result is obtained; the real-time temperature value of the indoor coil pipe is compared with the selected firststandard temperature value, the selected second standard temperature value and the selected third standard temperature value, and a second comparison result is obtained; and according to the first comparison result and the second comparison result, whether the air conditioner enters the defrosting mode or not is judged. By means of the air conditioner defrosting control method, the defrosting timecan be more accurately selected, the limitation that in the prior art, an outdoor coil pipe is adopted for judging the defrosting degree is effectively eliminated, the defrosting frequency of the airconditioner is reduced, and the user experience is improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner defrosting control method. Background technique [0002] As a device that can adjust the indoor ambient temperature, the air conditioner works on the principle that the indoor ambient temperature is reduced or increased by the refrigerant passing through the circulation pipeline through high-pressure / low-pressure / gas / liquid state transitions, that is, from From the perspective of the indoor unit, the air conditioner is in cooling or heating mode. When the air conditioner is in heating operation, if the temperature of the outdoor coil is too low under certain humidity conditions, it will cause frosting, and the frosting of the outdoor coil will reduce the heat exchange efficiency of the outdoor heat exchanger and affect the cooling performance of the air conditioner. The thermal effect reduces the comfort of the indoor environment and affec...

Claims

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Application Information

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IPC IPC(8): F24F11/42F24F11/64F24F11/65F24F11/84F24F11/86F24F140/20F24F140/50
CPCF24F11/42F24F11/64F24F11/65F24F11/84F24F11/86F24F2140/20F24F2140/50
Inventor 许文明
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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