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Air conditioner frosting control method

A control method and air conditioner technology, applied to heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve the problems of uneven frosting on the outer coil and affect the defrosting efficiency of the air conditioner, so as to improve the defrosting efficiency , Frosting uniform effect

Active Publication Date: 2020-02-25
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Since the frosting speed and thickness of the outdoor unit are affected by the temperature of the outer coil and the wind speed, and the shunt flow of the outdoor heat exchanger cannot be completely consistent, when the wind speed is the same, the temperature of the outer coil must be inhomogeneous. It will cause uneven frosting on the outer coil, which will affect the defrosting efficiency of the air conditioner.

Method used

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  • Air conditioner frosting control method

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Embodiment Construction

[0014] 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.

[0015] The defrosting control method of the present invention is mainly aimed at the air conditioner with dual blowers installed on the outdoor unit. Specifically, the outdoor unit of the air conditioner targeted by the present invention includes an upper fan and a lower fan, and the upper fan and the lower fan can rotate forward or reverse independently.

[0016] First refer to figure 1 , ...

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Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner frosting control method. In order to ensure the frosting uniformity of the air conditioner and improve the defrosting efficiency, the air conditioner defrosting control method, for an air conditioner with double fans arranged on an outdoor unit, comprises the following steps of S110, during heating operation of the air conditioner, detecting current Ia of the upper fan and current Ib of the lower fan at preset time intervals, and S120, selectively adjusting the rotating speeds of the upper fan and / or the lower fan according to the attenuation speeds of Ia and Ib. The nonuniformity of temperature points of an outer coil of an outdoor heat exchanger is balanced by controlling theair speed in different areas of the outer coil, and further the frosting uniformity is reasonably controlled, so that the frosting of the outdoor unit is more uniform; and uniform frosting is beneficial to defrosting, that is, the defrosting efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to a frosting control method for an air conditioner. 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 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/61F25B47/02F24F140/20
CPCF25B47/025F25B2347/02F24F11/42F24F11/61F24F11/64F24F2140/20
Inventor 许文明罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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