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:
Oct. 29, 2019
Filed:
Jun. 22, 2017
Minebea Mitsumi Inc., Nagano, JP;
Kiyohisa Nara, Fukuroi, JP;
Seiya Fujimoto, Fukuroi, JP;
MINEBEA MITSUMI INC., Nagano, JP;
Abstract
There is provided a centrifugal fan that effectively cools an electronic component with a simple structure. The centrifugal fan comprises an impellerhaving a plurality of pins extending in an axial direction, a rotor yokeformed with a plurality of through-holes through which the pins penetrate, the rotor yokebeing joined to the impelleras the pins penetrate through the through-holes, and a circuit boardarranged in a state having a gap with respect to the rotor yoke, wherein an end' of the pin protrudes from the rotor yoke to a side of the circuit board, and the plurality of pins are arranged with uneven pitch in a circumferential direction of the impeller.