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Air conditioner defrosting control method

A control method and technology for an air conditioner, which are applied in the directions of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control systems, etc., can solve problems such as indoor temperature fluctuations, achieve reduced fluctuations, prevent The effect of excessive room temperature fluctuations

Active Publication Date: 2018-11-06
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is judged that the air conditioner is in the frosting state, the air conditioner will enter the defrosting mode, but this method is likely to cause large fluctuations in the indoor temperature

Method used

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Embodiment Construction

[0017] 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.

[0018] like figure 1 As shown, the defrosting control method of the present invention includes the following steps: S110. During the heating operation of the air conditioner, determine whether the air conditioner meets the defrosting conditions; S120. If so, before the air conditioner enters the defrosting mode, Obtain the temperature t of the outdoor coil, and obtain the temperature t of th...

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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. In order to prevent room temperature from being too high influctuation during defrosting, the method comprises the following steps that in the heating operation process of an air conditioner, whether the air conditioner meets defrosting conditions is judged;in the heating operation process of the air conditioner, whether the air conditioner meets defrosting conditions is judged; if yes, before the air conditioner enters a defrosting mode, the temperaturet of an outdoor coil pipe is obtained, and the temperature t0 of the outdoor coil pipe is obtained again after a preset time; and t and t0 are compared, and the operation frequency of a compressor, throttle opening or the indoor unit and / outdoor unit fan rotating speed are selectively controlled according to the comparison result. Before the air conditioner enters the defrosting mode, some energyis stored, the energy is supplemented into a room in the air conditioner defrosting process, and therefore room temperature fluctuation is prevented from being too high during defrosting.

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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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/86F24F11/84F24F11/77F24F110/10
CPCF24F11/42F24F11/64F24F11/77F24F11/84F24F11/86F24F2110/10Y02B30/70
Inventor 许文明罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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