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:
Aug. 13, 2024
Filed:
Jul. 10, 2020
Qingdao Haier Air-conditioning Electronic Co., Ltd, Shandong, CN;
Haier Smart Home Co., Ltd., Shandong, CN;
Baitian Zhuo, Qingdao, CN;
Bin Shi, Qingdao, CN;
Shaojiang Cheng, Qingdao, CN;
Ruigang Zhang, Qingdao, CN;
Jun Wang, Qingdao, CN;
Qingdao Haier Air-conditioning Electronic Co., Ltd, Qingdao, CN;
Haier Smart Home Co., Ltd., Qingdao, CN;
Abstract
An expansion valve control method for a multi-split air-conditioning system to solve the problem of detecting leakage of an expansion valve of a multi-split air-conditioning system. The system includes an outdoor unit and a plurality of indoor units connected to the outdoor unit, each of the indoor units is connected to the outdoor unit by a first pipeline and a second pipeline. The expansion valve control method includes acquiring an indoor temperature of an environment where an indoor unit is located; acquiring the temperature of a first pipeline of the indoor unit and the temperature of a second pipeline of the indoor unit when the indoor unit is in a shutdown state; and according to at least the indoor temperature of the environment where the indoor unit is located, determining the leakage condition of an expansion valve of the indoor unit.