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Air conditioner defrosting control method

A control method and technology for air conditioners, which are applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as the degree of air-conditioning heating attenuation, different heating attenuation, and heating attenuation that cannot be directly reflected. , to ensure the comfort of use, reduce the frequency of defrosting, and reduce the number of defrosting times.

Inactive Publication Date: 2018-12-18
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Problems solved by technology

Existing air conditioners generally use the running time + outdoor coil temperature to judge whether to enter defrosting, but this method cannot directly reflect the attenuation degree of the actual heating capacity of the air conditioner, that is, under different working conditions, the same outer coil The attenuation of heating capacity corresponding to the degree of tube temperature attenuation is different, and what really affects users is the attenuation of heating capacity

Method used

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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.

[0019] like figure 1 As shown, the defrosting control method of the present invention includes: S110, after the air conditioner starts heating operation, every time t d Calculation time period t d The average value Q of the heating capacity of the internal air conditioner n As a reference value; S120, if the air conditioner running time t>t d , calculate the real-time heating capacity Q o...

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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. The air conditioner defrosting control method is used for preventing the room temperature fluctuation from being excessively large during defrosting. The defrosting control method includes the following steps that after an air conditioner starts the heating operation, an average value Q<n> of the heating capacity of the air conditioner in a time period t<d> is calculated at an interval of the time period t<d> as a reference value; if the air conditioner running time t is larger than t<d>, the real-time heating capacity Q of the air conditioner is calculated; and Q and Q<n> are compared, and according to the comparison result, whether the air conditioner is enabled to enter into defrosting or not is judged, wherein Q<n> is the last updated reference value of the air conditioner. The air conditioner defrosting control method utilizes the change of the heating capacity of the air conditioner to determine whether to enable the air conditioner to enter into a defrosting mode, thereby minimizing the influence on the indoor temperature in the defrosting process; and the indoor temperature does not fluctuate greatly.

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): F24F11/42F24F11/64F24F11/65F24F11/84F24F11/871
CPCF24F11/42F24F11/64F24F11/65F24F11/84F24F11/871
Inventor 周云杰许文明付裕王飞罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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