Air conditioner defrosting control method and device
A control method and technology of an air conditioner, applied in heating and ventilation control systems, refrigerators, heating methods, etc., can solve problems such as frost-free defrosting, frost-free defrosting, etc., to achieve frost-free or non-frost frost effect
Inactive Publication Date: 2017-05-31
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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[0004] The embodiment of the present invention provides a defrosting control method and device for an air conditioner, aiming to solve the problem of defrosting with frost or defrosting without frost
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[0016] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such as first and second etc. are used only to distinguish one entity or operation from another with...
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The invention discloses an air conditioner defrosting control method. Under the air conditioner heating condition, the method comprises the steps that the indoor coil pipe temperature is obtained; the continuous operation time of a compressor is obtained; when the continuous operation time of the compressor is larger than or equal to the operation time set value of the compressor, and the indoor coil pipe temperature is smaller than or equal to the temperature set value, an air conditioner is controlled to be in the defrosting mode; when the air conditioner operates for heating, and the continuous operation time of the compressor is larger than or equal to the operation time set value of the compressor, it proves that the operation time of the compressor is long, a large amount of high-temperature high-pressure gaseous refrigerants are generated, at the moment, when the indoor coil pipe temperature is smaller than or equal to the temperature set value, it proves that the indoor temperature is low, the heat exchange rate of the air conditioner is reduced, the surface of an outdoor unit is defrosted, and therefore the air conditioner is controlled to be in the defrosting mode. Whether the air conditioner is defrosted or not can be judged in time, when the air conditioner is frosted, the air conditioner is controlled to be in the defrosting mode, and the problem that the air conditioner cannot be defrosted when frost exists, or the air conditioner is defrosted when not frost exists is solved.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a defrosting control method and device for an air conditioner. Background technique [0002] When the heat pump air conditioner system is heating, when the outdoor ambient temperature is lower than freezing point, the water vapor in the air will condense on the surface of the heat exchanger, and as time changes, a frost layer will form on the surface of the heat exchanger. Frost directly increases the heat transfer resistance between the surface of the heat exchanger and the flowing air, which reduces the air flow through the heat exchanger and reduces the heat transfer efficiency, resulting in a decrease in the heat transfer of the system and deterioration of the heating condition of the system , so measures need to be taken to defrost. [0003] At present, the defrosting method of air conditioners generally adopts the method of timing defrosting. This method mainly en...
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IPC IPC(8): F25B47/02F24F11/00
CPCF25B47/02F24F11/30F24F11/42F24F11/62F24F11/64
Inventor 张建雄王祯祯郭亮曾福祥
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD