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:
Dec. 07, 2021
Filed:
Aug. 02, 2018
Gree Electric Appliances (Wuhan) Co., Ltd, Hubei, CN;
Gree Electric Appliances, Inc. of Zhuhai, Guangdong, CN;
Hailing Zhong, Guangdong, CN;
Qi Cheng, Guangdong, CN;
Kailiang Huang, Guangdong, CN;
Yang Liu, Guangdong, CN;
Siyuan Liu, Guangdong, CN;
Min Li, Guangdong, CN;
Puzhong Wang, Guangdong, CN;
Gree Electric Appliances (Wuhan) Co., Ltd, Wuhan, CN;
Gree Electric Appliances, Inc. of Zhuhai, Zhuhai, CN;
Abstract
Provided are a control method of a heat pump system and a heat pump system. The heat pump system includes a throttling element and a four-way valve. The four-way valve has a first state in a case that the heat pump system operates for refrigerating and a second state in a case that the heat pump system operates for heating. The control method includes that: before the four-way valve is switched from the first state to the second state, A is compared with B, and switching of the state of the four-way valve is controlled and the opening degree of the throttling element is adjusted according to the comparison result, or switching of the state of the four-way valve is controlled according to the comparison result, or the opening degree of the throttling element is adjusted according to the comparison result.