A kind of air conditioner and defrosting control method thereof

A control method and technology for air conditioners, applied in heating and ventilation control systems, heating and ventilation safety systems, mechanical equipment, etc., can solve problems such as inability to exit, defrost exit delay, and inability to reach defrost exit temperature, and achieve guaranteed The effect of heating comfort

Active Publication Date: 2022-07-19
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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Problems solved by technology

[0005] The present invention aims at the above-mentioned problems existing in the prior art, and provides an air conditioner and its defrosting control method to solve the problem that the actual defrosting of the outdoor heat exchanger in the existing air conditioner in windy weather has already been completed, but the actually detected disk The tube temperature cannot reach the defrost exit temperature, resulting in a technical problem that the defrost exit is delayed or even cannot be exited

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  • A kind of air conditioner and defrosting control method thereof
  • A kind of air conditioner and defrosting control method thereof
  • A kind of air conditioner and defrosting control method thereof

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Embodiment Construction

[0033] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.

[0034] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The terminology of the indicated direction or positional relationship is based on the direction or positional relationship shown in the drawings, which is only for convenience of description and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation , so it should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second", and "...

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Abstract

The invention provides an air conditioner and a defrosting control method thereof. During the defrosting operation of the air conditioner, the outdoor ambient wind speed is obtained, the outdoor coil temperature is detected, and the defrosting exit temperature corresponding to the wind speed grade to which the outdoor ambient wind speed belongs is obtained. When the outdoor coil temperature is higher than the defrost exit temperature corresponding to the wind speed level to which the outdoor ambient wind speed belongs, the air conditioner is controlled to exit the defrost; among them, different wind speed levels correspond to different defrost exit temperatures, and the wind speed level is negatively correlated with the defrost exit temperature . The present invention sets different defrosting exit temperatures according to the wind speed level, and the defrosting exit temperature can reflect the actual state of the current wind speed level when defrosting is completed, avoid the influence of ambient wind on the temperature of the outdoor coil, and ensure that the defrosting can exit in time when the defrosting is completed. Defrost to ensure indoor heating comfort.

Description

technical field [0001] The invention belongs to the technical field of air conditioners and their control, and in particular relates to an air conditioner and a defrosting control method thereof. Background technique [0002] When the air conditioner is in heating operation, due to the low outdoor ambient temperature, there is a risk of frost formation on the outdoor heat exchanger. After the outdoor heat exchanger is frosted, in order to ensure the heating effect, the outdoor heat exchanger needs to be defrosted. [0003] When the existing air conditioner is defrosting, the method for determining the end of defrosting is to exit the defrosting when the outdoor coil temperature is greater than the exit temperature for a certain period of time. However, since the outdoor unit is located outdoors, the heat exchange of the outdoor heat exchanger is affected by the outdoor environment, especially in windy weather. When defrosting, the frost near the fins or copper pipes of the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/42F24F11/61F24F11/64F24F110/32F24F140/20
CPCF24F11/42F24F11/61F24F11/64F24F2110/32F24F2140/20
Inventor 张立龙赵志林聂正伟连建春李国彦王准
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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