Air conditioner, control method thereof and defrosting control device
A control method and control device technology, which is applied in space heating and ventilation, heating and ventilation control systems, heating methods, etc., can solve problems such as poor user experience and easy defrosting of air conditioners, and achieve the goal of improving user experience Effect
Inactive Publication Date: 2021-06-15
NINGBO AUX ELECTRIC +1
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- Application Information
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Problems solved by technology
[0004] The problem solved by the present invention is that the existing air conditioner is easy to defrost by mistake, which leads to poor user experience
Method used
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Embodiment Construction
[0040] In the current prior art, a method for judging defrosting is to monitor the difference between the outdoor air temperature and the temperature of the outer coil. action. However, this method needs to use an outdoor temperature sensor to collect the temperature of the outdoor air, so it needs a higher cost to realize defrosting control. Another defrosting judging method omits the outdoor temperature sensor, and only uses the actual temperature change of the outer coil to judge whether there is thick frost. Specifically, first, the temperature of the internal and external coils of the compressor will be recorded for a period of time to determine a reference temperature, and then the real-time temperature of the external disk will be monitored all the time. When the temperature drop of the actual external disk compared with the reference temperature reaches the preset value, defrosting will be performed. action.
[0041]Although the cost of the second method is lower, th...
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The invention provides an air conditioner, a control method thereof and a defrosting control device, and relates to the technical field of air conditioners. According to the control method of the air conditioner, the current corrected temperature of an outer coil pipe is obtained by correcting the current temperature of the outer coil pipe, and then whether the air conditioner meets preset conditions or not is judged according to the current corrected temperature; when the current corrected temperature of the outer coil pipe is determined, the current frequency, the reference frequency and the correction coefficient of a compressor are used for compensating the current temperature of the outer coil pipe; and therefore, the air conditioner is not prone to be judged to reach a defrosting condition due to the increase of the operation frequency of the compressor. According to the control method, the situation that the air conditioner mistakenly enters defrosting operation due to the fact that the temperature drop of the outer coil pipe is judged to be too large can be avoided, and the use experience of a user is favorably improved. The air conditioner and the defrosting control device are used for realizing the control method.
Description
technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner, its control method and a defrosting control device. Background technique [0002] When the air conditioner is running for heating, frost will gradually form on the outdoor heat exchanger in an outdoor low-temperature and high-humidity scene. When the frost layer is thick enough, it will completely block the outdoor heat exchanger, seriously weakening the connection between the outdoor heat exchanger and the air The effect of heat exchange affects the heating effect, so it must be defrosted when thick frost is formed. [0003] At present, there is a defrosting judging method that uses only the temperature change of the outer coil to judge whether there is thick frost in the absence of an outdoor temperature sensor. This method has the risk of misjudging frost due to inaccurate judgment. Misunderstanding Frost will affect the heating comfort, r...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24F11/42F24F11/61F24F11/64F24F11/65F24F11/86F24F11/88F24F140/20
CPCF24F11/42F24F11/61F24F11/64F24F11/65F24F11/86F24F11/88F24F2140/20
Inventor 应必业原惠惠陈伟古汤汤
Owner NINGBO AUX ELECTRIC