Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kiyohisa Nara0
Wataru Nogamida0
Yuki Kadono0
Yuya Makino0
Atsushi Tsuzaki0
Hiroshi Murahata0
Masaaki Matsubara0
Satoshi Hatahara0
...
Date of Patent
February 9, 2021
Patent Application Number
15987406
Date Filed
May 23, 2018
Patent Citations Received
Patent Primary Examiner
Patent abstract
A centrifugal fan that is light in weight and has a structure that restrains vibration are provided. The centrifugal fan includes a resin upper casing, a resin lower casing, an impeller, a motor, and a circuit board. The impeller, the motor and the circuit board are housed between the resin upper casing and the resin lower casing. Radial ribs and a concentric ribs for reinforcing are formed at a bottom surface of a concave part of the lower casing. Resin pins are provided in a standing manner at these rib parts, and the circuit board is fixed to the lower casing by the resin pins.
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