Control method and system of air conditioner under low-humidity heating condition

A control method and technology of thermal working conditions, applied in the direction of control input related to air characteristics, space heating and ventilation control input, heating mode, etc., can solve the problems of poor rapid heating effect, poor lubrication effect of compressor, and frequency increase time long wait question

Active Publication Date: 2018-01-26
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Application Information

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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 of poor rapid heating effect due to long up-frequency time and poor lubricating effect of the compr

Method used

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  • Control method and system of air conditioner under low-humidity heating condition
  • Control method and system of air conditioner under low-humidity heating condition
  • Control method and system of air conditioner under low-humidity heating condition

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Embodiment Construction

[0050] 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 present invention is described in conjunction with the embodiment in which the compressor is provided with two frequency-up stages, this arrangement is not static, and those skilled in the art can also apply the method of the present invention to Applied to other application scenarios, such as the compressor can also set three or more up-converting stages.

[0051] First refer to figure 1 , figure 1 It is a schematic flowchart of the control method of the air conditioner under the low-temperature heating condition of the present invention.

[0052] Such as figure 1 As shown, in order to solve the problems of poor ra...

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Abstract

The invention relates to the technical field of air conditioners, in particular to a control method and system of an air conditioner under the low-humidity heating condition. The control method and system of the air conditioner under the low-humidity heating condition aim at solving the problem that the frequency increase time of an existing air conditioner startup frequency increase control method is long and consequently the quick heating effect is poor and the lubrication effect is poor. The control method comprises the steps that the environment humidity is obtained; when the environment humidity is smaller than the set humidity, a compressor is preheated; after preheating of the compressor is completed, an outer fan is started and the speed of the outer fan is increased to the first target rotation speed; the compressor of the air conditioner is started while the speed of the outer fan reaches the first target rotation speed; and the frequency of the compressor is continuously increased stage by stage according to multiple set speeds. In this way, the frequency increase time of the compressor can be greatly shortened while normal oil return of the compressor is ensured, so that the purposes of quick heating and lubrication improvement are achieved, the comfort of the air conditioner is improved, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning control method and system under low-temperature heating conditions. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the quality of life, and this requirement is particularly evident in household appliances. Taking an air conditioner as an example, in order to meet the needs of users for rapid heating and thus bring a more comfortable experience in winter, the existing air conditioners usually increase the frequency of the compressor to run at a higher frequency when they are first turned on. When the compressor is running, the refrigerant in the compressor will be quickly discharged and circulated in the piping system. During the circulation process, the lubricating oil will be discharged from the compressor together with the refrigerant and enter the pipeline. Only when the disch...

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Application Information

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IPC IPC(8): F24F11/64F24F11/77F24F11/79F25B49/02F24F110/10F24F110/20
CPCY02B30/70
Inventor 罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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