Control method and device for electric heater of air-conditioning outdoor unit
A control method and heater technology, which are applied in the heating mode, control input involving air characteristics, space heating and ventilation control input, etc. Improve accuracy, resolve frost-free or no-frost defrosting effects
Active Publication Date: 2017-08-22
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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- Abstract
- Description
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- Application Information
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Problems solved by technology
[0004] Embodiments of the present invention provide a control method and device for an outdoor electromechanical heater of an air conditioner, aiming to solve the problem of defrosting or defrosting without frost in the outdoor unit of the air conditioner
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[0017] 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 a control method for an electric heater of an air-conditioning outdoor unit. In the heating and defrosting process of an air conditioner, the control method comprises the following steps: acquiring the temperature Td at a drain hole in a chassis of the outdoor unit; and determining the output power of the electric heater of the outdoor unit according to Td. According to the control method, in the heating and defrosting process during running of the air conditioner, the temperature Td at the drain hole in the chassis of the outdoor unit is acquired at first, whether the current outdoor unit is frosted or not can be judged more accurately according to Td, and then the output power of the electric heater of the outdoor unit is determined according to Td, so that the accuracy in adjusting the output power of the electric heater of the outdoor unit during defrosting is improved, and the problem that the air-conditioning outdoor unit is not defrosted while frost exists or is defrosted while frost does not exist is solved.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for controlling an outdoor electromechanical heater of an air conditioner. Background technique [0002] When the heat pump air-conditioning 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. The heat transfer resistance between the surface of the heat exchanger and the flowing air is directly increased, so that the air flow through the heat exchanger is reduced, and the heat exchange efficiency is reduced, resulting in a decrease in the heat transfer of the system and deterioration of the heating condition of the system. It is therefore necessary to take measures to defrost. [0003] During the defrosting process of the outdoor unit of the air conditioner,...
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IPC IPC(8): F24F11/00F24F13/22
CPCF24F11/30F24F11/42F24F11/64F24F13/22F24F2110/10
Inventor 罗祖春孙治国王阳王彩平杨文钧
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD