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:
Jun. 23, 2020
Filed:
Aug. 09, 2016
Qingdao Haier Washing Machine Co., Ltd., Shandong, CN;
Jindong Bing, Shandong, CN;
Sanwei Lu, Shandong, CN;
QINGDAO HAIER WASHING MACHINE CO., LTD., Shandong, CN;
Abstract
A high efficiency vented dryer having a heat pump system comprises an outer drum, an air-intake drying air duct and an air-exhaust drying air duct for allowing the outer drum communicating with outside. The dryer is provided with a heat pump system comprising a first evaporator and a second evaporator arranged in parallel or in series. The first evaporator is arranged in the air-exhaust drying air duct and the second evaporator is arranged in an external atmosphere to absorb heat from the exhaust air and outside, respectively. By arranging the evaporators in the drying air duct and the external atmosphere respectively, the heat pump system can simultaneously or independently absorb heat from the air exhausted by the dryer and from the ambient air of the dryer to heat the intake air by using heat in the exhaust air and heat in the environment to improve drying rate of the dryer.