Indoor unit anti-freezing control method for air conditioner and air conditioner

A control method and indoor unit technology, applied in heating and ventilation control systems, mechanical equipment, heating and ventilation safety systems, etc., can solve problems such as accidental errors and difficult indoor units, achieve accuracy improvement, avoid misjudgment, and improve The effect of accuracy

Active Publication Date: 2020-08-25
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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  • Description
  • Claims
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Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that it is difficult to accurately judge the freezing situation of the indoor unit through the temperature of the inner coil of the existing air conditioner, and the existing method of point selection is prone to accidental errors, The present invention provides an indoor unit anti-freezing control method for an air conditioner. The indoor unit anti-freezing control method includes the following steps: when the air conditioner is in the cooling condition, acquire the Calculate the attenuation degree of the two adjacent current average values ​​of the indoor fan; judge whether to make the air conditioner enter the anti-freezing mode of the indoor unit according to the attenuation degree

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  • Indoor unit anti-freezing control method for air conditioner and air conditioner

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Embodiment Construction

[0021] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. 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. For example, although the various steps of the method of the present invention are described in a specific order in the present application, these orders are not limiting, and those skilled in the art can perform the steps in different orders without departing from the basic principles of the present invention. Follow the steps described.

[0022] Based on the existing air conditioner proposed in the background art, it is difficult to accurately judge the freezing condition of the indoor unit through the temperature of the inner coil, and the existing method of point selection is prone to accidental errors. In order to solve the above-mentioned...

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Abstract

The invention belongs to the technical field of air conditioners and particularly relates to an indoor unit anti-freezing control method for an air conditioner and the air conditioner. By means of theindoor unit anti-freezing control method for the air conditioner and the air conditioner, the problems that it is difficult for an existing air conditioner to accurately judge the freezing conditionof an indoor unit based on the temperature of an inner coiled pipe, and accidental errors are prone to occurring in an existing point sampling judgment method are solved. The indoor unit anti-freezingcontrol method comprises the steps that when the air conditioner is in a refrigeration working condition, the current average values of a primary indoor fan are obtained every other preset time interval; the degree of attenuation of every two adjacent current average values of the indoor fan is figured out; and whether to set the air conditioner to be in an indoor unit anti-freezing mode is judged according to the degree of attenuation. The current average values of the indoor fan are adopted as foundation parameters, judgment is conducted according to the degree of attenuation of every two adjacent current average values of the indoor fan, accordingly misjudgment caused by the fluctuation phenomenon of fan currents is effectively avoided for the air conditioner, and then judgment accuracy is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an indoor unit anti-freezing control method for the air conditioner and the air conditioner. Background technique [0002] With the continuous improvement of people's living standards, people have also put forward higher and higher requirements for the living environment. In order to maintain a comfortable ambient temperature, air conditioners have become an essential device in people's lives. Generally, an air conditioner includes an indoor unit, an outdoor unit, and a circulation loop for connecting the indoor unit and the outdoor unit. The heat exchange medium in the air conditioner continuously exchanges heat between the outdoor unit and the indoor unit through the circulation loop, thereby achieving a change in room temperature. Effect. Taking the cooling operation of the air conditioner as an example, the coil of the indoor unit is always at a low tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/43F24F11/64F24F140/20
Inventor 许文明
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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