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Air-conditioning unit automatic oil return control method, device, storage medium and air-conditioning unit

A technology for oil return control and air conditioning unit, which is applied in the field of control and can solve problems such as compressor damage

Active Publication Date: 2020-03-17
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned prior art, and provide an automatic oil return control method, device, storage medium and air-conditioning unit of the air-conditioning unit, so as to solve the problem caused by the low oil level of the air-conditioning unit in the prior art to the compressor. damage problem

Method used

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  • Air-conditioning unit automatic oil return control method, device, storage medium and air-conditioning unit
  • Air-conditioning unit automatic oil return control method, device, storage medium and air-conditioning unit
  • Air-conditioning unit automatic oil return control method, device, storage medium and air-conditioning unit

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[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embo...

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Abstract

The invention provides an automatic oil return control method, a device and a storage medium of an air conditioning unit and the air conditioning unit. The method comprises the steps of judging whether the unit meets automatic oil return conditions or not; and carrying out automatic oil return control on the unit according to evaporation pressure of the unit when the unit meets the automatic oil return conditions. According to the scheme, automatic oil return control can be conducted on the unit according to the evaporation pressure of the unit, and damage to a compressor of the unit because there is no enough oil to lubricate is avoided.

Description

technical field [0001] The invention relates to the field of control, in particular to an automatic oil return control method, device, storage medium and air-conditioning unit of an air-conditioning unit. Background technique [0002] Existing large-scale air-conditioning units run for a period of time or in certain working environments, it is easy to have unit self-protection caused by low oil level. At this time, the compressor does not have enough oil lubrication. If the compressor is forced to open, the compression The damage to the unit is irreversible, and the machine cannot be turned on if the machine is shut down and the oil level has not recovered within a period of time, resulting in the user being unable to use the unit normally. Since most users are not clear about the related performance of the unit, they don’t know how to make the unit return oil. Sometimes, in order not to affect the use, users directly refuel the compressor, resulting in inconvenience and cos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B31/00F25B49/02
Inventor 刘红燕罗炽亮刘忠伟郭双林庞维容钱沛段闯
Owner GREE ELECTRIC APPLIANCES INC