Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Katsumichi Ishihara0
Tatsuya Midorikawa0
Akira Nakayama0
Masato Kakeyama0
Date of Patent
January 16, 2018
Patent Application Number
14570108
Date Filed
December 15, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
A waterproof axial flow fan includes: a rotor having a rotating shaft pivotally supported by a bearing in a rotatable manner, an impeller provided to a tip of the rotating shaft and a rotor cover; a stator having a winding and a circuit board, a surface of which is coated with an electrically insulating synthetic resin; and at least one ring collection groove part formed in a resin surface opposing to the rotor cover at an apex of the stator so as to surround a tip of a bearing holding part for holding the bearing.
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