Invention Grant
- Patent Title: Electric fan
- Patent Title (中): 电扇
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Application No.: US13978786Application Date: 2012-01-10
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Publication No.: US09249788B2Publication Date: 2016-02-02
- Inventor: Hiroshi Kimura , Hiroki Masuyama , Keiichi Hosoi , Shinya Saito
- Applicant: Hiroshi Kimura , Hiroki Masuyama , Keiichi Hosoi , Shinya Saito
- Applicant Address: JP Kiryu-shi
- Assignee: Mitsuba Corporation
- Current Assignee: Mitsuba Corporation
- Current Assignee Address: JP Kiryu-shi
- Agency: Kenyon & Kenyon LLP
- Priority: JP2011-002953 20110111
- International Application: PCT/JP2012/050232 WO 20120110
- International Announcement: WO2012/096247 WO 20120719
- Main IPC: F04B17/03
- IPC: F04B17/03 ; F04D25/06 ; H02K5/10 ; F04D29/08 ; H02K7/14

Abstract:
This electric fan has a rotation shaft that is provided rotatably with respect to a stator, a rotor yoke provided on the rotation shaft and formed in a bottomed cylindrical shape so as to cover the stator from a front surface, and a bracket that fixes the stator to a fan shroud and is formed so as to cover a rear surface of the stator, with a fan body provided so as to integrally rotate with the rotation shaft and the rotor yoke. The fan body has a fan boss formed in a bottomed cylindrical shape so as to cover the rotor yoke from a front surface, and a plurality of blades that is provided protruding radially from an outer circumferential surface of the fan boss. A first labyrinth portion is provided between an opening portion of the fan boss and the fan shroud.
Public/Granted literature
- US20130287605A1 ELECTRIC FAN Public/Granted day:2013-10-31
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