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. 30, 2025
Filed:
Mar. 01, 2022
Qingdao Haier Special Freezer Co., Ltd, Qingdao, CN;
Haier Smart Home Co., Ltd., Qingdao, CN;
Desen Wang, Qingdao, CN;
Jiangtao Li, Qingdao, CN;
Renjie Liu, Qingdao, CN;
Qingyan Ge, Qingdao, CN;
Tingxiu Zhang, Qingdao, CN;
Hailiu Long, Qingdao, CN;
Jiangong Xing, Qingdao, CN;
Guofeng Li, Qingdao, CN;
QINGDAO HAIER SPECIAL FREEZER CO., LTD, Qingdao, CN;
HAIER SMART HOME CO., LTD., Qingdao, CN;
Abstract
A refrigeration unit includes a compressor, an evaporator, a fan, and an air duct component, utilizing the evaporator for cooling and the fan to deliver cold air formed by heat exchange with the evaporator into compartments for cooling; a heating unit for transferring heat generated by the heating unit into the compartments for heating; a temperature sensor unit for detecting the actual temperature inside the compartments and the external environment temperature; and a control mainboard that selects cooling or heating based on the actual temperature within the compartments. When the control mainboard selects cooling by the refrigeration unit, the control mainboard obtains the actual environmental temperature, derives a corresponding correcting temperature difference according to the actual environmental temperature, and corrects the switch-on and switch-off temperatures of the compressor based on the corrected temperature difference; the compressor operates according to the switch-on and switch-off temperatures corrected by the corrected temperature difference.