The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2022
Filed:
Nov. 08, 2018
Gd Midea Heating & Ventilating Equipment Co., Ltd., Foshan, CN;
Midea Group Co., Ltd., Foshan, CN;
Mingren Wang, Foshan, CN;
Kun Yang, Foshan, CN;
Other;
Abstract
A method and device for adjusting an oil volume of a compressor of a multi-split system. The method comprises the following steps: (S) during an operation of a multi-split system, detecting at a first pre-set time interval whether an oil volume of a compressor is insufficient; (S) if the oil volume of the compressor is insufficient, controlling an oil volume adjusting unit to turn on for a second pre-set time and then turn off; (S) acquiring a total turn-on time of the oil volume adjusting unit, and determining whether the total turn-on time exceeds a pre-set value; (S) if the total turn-on time exceeds the pre-set value and it has not been detected over a continuous third pre-set time that the oil volume of the compressor is insufficient, recycling oil back to an oil storage tank by controlling a switch unit and the oil volume adjusting unit.