Invention Grant
- Patent Title: Axial motor
- Patent Title (中): 轴向电机
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Application No.: US13379506Application Date: 2010-06-17
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Publication No.: US09071118B2Publication Date: 2015-06-30
- Inventor: Masatsugu Takemoto , Hiroyuki Mitani , Hirofumi Hojo , Koji Inoue , Osamu Ozaki
- Applicant: Masatsugu Takemoto , Hiroyuki Mitani , Hirofumi Hojo , Koji Inoue , Osamu Ozaki
- Applicant Address: JP Sapporo-shi JP Kobe-shi
- Assignee: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY,KABUSHIKI KAISHA KOBE SEIKO SHO
- Current Assignee: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY,KABUSHIKI KAISHA KOBE SEIKO SHO
- Current Assignee Address: JP Sapporo-shi JP Kobe-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-148257 20090623
- International Application: PCT/JP2010/004031 WO 20100617
- International Announcement: WO2010/150492 WO 20101229
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K21/24

Abstract:
An axial motor includes a rotor arranged between a pair of stators with coils. In the rotor, a plurality of permanent magnets sandwiched between pairs of first magnetic materials and a plurality of second magnetic materials are alternately arranged in a rotation direction while gaps are provided therebetween. Since the permanent magnets are sandwiched by the first magnetic materials in the thus constructed axial motor, a field-weakening control can be performed. Since the second magnetic materials are provided, a reluctance torque can be generated. Further, since the gaps are provided, more magnetic fluxes generated from the permanent magnets can be caused to flow toward the coils. Therefore, the thus constructed axial motor can achieve a higher output, higher torque, higher efficiency, and miniaturization.
Public/Granted literature
- US20120104880A1 AXIAL MOTOR Public/Granted day:2012-05-03
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