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:
Nov. 10, 2020
Filed:
Feb. 09, 2017
Qingdao Haier Air Conditioner General Corp., Ltd., Qingdao, CN;
Wenming Xu, Qingdao, CN;
Yu Fu, Qingdao, CN;
Mingjie Zhang, Qingdao, CN;
Fei Wang, Qingdao, CN;
Beibei Xu, Qingdao, CN;
Juke Liu, Qingdao, CN;
Rongbang Luo, Qingdao, CN;
Junjun Yuan, Qingdao, CN;
Shuang Ding, Qingdao, CN;
QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD., Qingdao, CN;
Abstract
Provided is a control method on electronic expansion valve in air conditioner, which comprises: obtaining a real-time running frequency of compressor, a real-time exhaust temperature and a real-time outdoor environment temperature as the compressor running; if the air conditioner working in cooling mode, using a first set rule or a second set rule to obtain an integral coefficient in which the selection is based on the comparison of the real-time outdoor environment temperature and a first set outdoor environment temperature; if the air conditioner working in heating mode, using a first set rule or a third set rule to obtain an integral coefficient in which the selection is based on the comparison of the real-time outdoor environment temperature and a second set outdoor environment temperature; performing a PID control on the electronic expansion valve by using an error of the difference between real-time exhaust temperature and a set target exhaust temperature. The method realizes an accurate and stable control on opening amount of electronic expansion valve in air conditioner.