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:
May. 18, 2021
Filed:
Sep. 21, 2018
Nidec Corporation, Kyoto, JP;
Yuya Horii, Kyoto, JP;
Tsuyoshi Yasumura, Kyoto, JP;
NIDEC CORPORATION, Kyoto, JP;
Abstract
A centrifugal fan includes a motor, an impeller, a circuit board, and a casing. The motor has a stator and a rotatable rotor. The impeller is fixed to and rotates with the rotor. The casing has a lower casing recessed downward and provided with a board housing portion accommodating the circuit board. The impeller includes a boss portion, blade portions, an upper shroud, and a lower shroud. The blade portions are disposed at intervals in the circumferential direction on an outer peripheral surface of the boss portion and extend radially outside. The upper shroud is connected to at least a portion of each of the blade portions on the upper side. The lower shroud is connected to at least a portion of the blade portion on the lower side. At least a portion of the lower end surface of the blade portion faces the upper surface of the circuit board.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile