Air conditioner control method and system under low-temperature and high-humidity heating work condition

A low-temperature, high-humidity, control method technology, applied in heating and ventilation control systems, heating methods, high-efficiency regulation technology, etc., can solve problems such as poor rapid heating effect, poor lubrication effect of compressors, and long up-converting time

Active Publication Date: 2018-02-23
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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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 problems in the existing air-conditioning start-up frequency control method, the rapid heating effect is poor due to the long frequency increase time, the compressor lubrication effect is poor when the ambient tempera

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  • Air conditioner control method and system under low-temperature and high-humidity heating work condition
  • Air conditioner control method and system under low-temperature and high-humidity heating work condition
  • Air conditioner control method and system under low-temperature and high-humidity heating work condition

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Embodiment Construction

[0062] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention. For example, although the present invention is described in conjunction with the embodiment in which the compressor is provided with two upscaling stages, this setting method is not static. Those skilled in the art can also apply the method of the present invention without departing from the principle of the present invention. For other application scenarios, such as compressors, three or more upscaling stages can also be set.

[0063] First refer to figure 1 , figure 1 It is a schematic flowchart of the control method of the air conditioner under the low temperature and high humidity heating condition of the present invention.

[006...

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Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and system under the low-temperature and high-humidity heating work condition and aims at solving the problems that an existing air conditioner is poor in rapid heating effect and poor in lubricating effect, and an outdoor unit is not prone to frosting. To achieve the purpose, the control method comprises the steps that the environment temperature and the environment humidity are obtained; when the environment temperature is smaller than the set temperature and the environment humidity is larger than the set humidity, a compressor is preheated; after preheating is finished, an outer draught fan is started, and the speed is increased to the first target rotation speed; when or before or after the speed of the outer draught fan starts to be increased, the aperture of an expansion valve is adjusted to the first target aperture; when the outer draught fan and/or the expansion valve reach/reaches the set conditions, the compressor is started; and staging continuous frequency increasing of the compressor is conducted according to multiple set speeds. According to the abovemethod, the compressor frequency increasing time can be greatly shortened, the purposes of rapid heating, improving lubricating and delaying frosting are achieved, the comfort of the air conditioneris improved, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method and system for an air conditioner under a low-temperature and high-humidity heating condition. Background technique [0002] With the increasing improvement of living standards, people's requirements for the quality of life are also getting higher and higher, and this requirement is particularly evident in household appliances. Taking an air conditioner as an example, in order to meet the user's demand for rapid heating and thus bring a more comfortable user experience, the existing air conditioner generally rapidly upsurges the compressor to a higher frequency when it is just turned on. When the compressor is running, the refrigerant in the compressor will be quickly discharged and circulated in the piping system. During the cycle, the lubricating oil will be discharged from the compressor together with the refrigerant and enter the pipeline. Only when...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/77F24F11/86F25B49/02F24F110/12F24F110/22
CPCF25B49/022F25B2600/2513Y02B30/70
Inventor 罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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