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Air conditioner defrosting control method

A control method and technology of an air conditioner, applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., can solve problems such as indoor temperature fluctuations, prevent excessive fluctuations, reduce The effect of small fluctuations

Active Publication Date: 2018-10-23
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Air conditioner defrosting control method

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Embodiment Construction

[0015] 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.

[0016] Such as 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; Before the mode, obtain the indoor ambient temperature and the outdoor ambient temperature; S130, compare the indoor ambient temperature and the ...

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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 fluctuation from beingexcessively high during defrosting, the air conditioner defrosting control method comprises the following steps that in the heating operation process of an air conditioner, whether the air conditionermeets the defrosting condition or not is judged; if yes, the indoor ambient temperature and the outdoor ambient temperature are obtained before the air conditioner enters into a defrosting mode; andthe indoor ambient temperature and the outdoor ambient temperature are compared, and the operating frequency of a compressor, the open degree of a throttle valve and the fan rotational speed of an indoor unit and / or an outdoor unit are selectively controlled according to the comparison result. According to the air conditioner defrosting control method, on the basis of the difference value betweenthe indoor ambient temperature and the outdoor ambient temperature, the operating frequency of the compressor, the open degree of the throttle valve and the fan rotational speed of the indoor unit and / or the outdoor unit are selectively controlled to store a part of energy, and in the defrosting process of the air conditioner, the part of energy is replenished into a room, so that the excessively-high room temperature fluctuation is effectively prevented 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): F24F11/42F24F11/86F24F11/77F24F11/84F24F11/64F24F110/10F24F110/12
CPCF24F11/42F24F11/64F24F11/77F24F11/84F24F11/86F24F2110/10F24F2110/12Y02B30/70
Inventor 许文明罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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