Invention Grant
- Patent Title: Production method of vibrating motor and rotor for vibrating motor
- Patent Title (中): 振动电机振动电机和转子的生产方法
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Application No.: US13012501Application Date: 2011-01-24
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Publication No.: US08405266B2Publication Date: 2013-03-26
- Inventor: Manabu Nakamura , Yuzuru Suzuki , Hiroyuki Furusaki
- Applicant: Manabu Nakamura , Yuzuru Suzuki , Hiroyuki Furusaki
- Applicant Address: JP Nagano
- Assignee: Minebea Co., Ltd.
- Current Assignee: Minebea Co., Ltd.
- Current Assignee Address: JP Nagano
- Agency: Oliff & Berridge, PLC
- Priority: JP2010-012945 20100125; JP2010-167930 20100727
- Main IPC: H02K7/06
- IPC: H02K7/06

Abstract:
A vibrating motor has a shaft, a stator including a yoke having pole teeth extending toward an axis of the shaft from an inner circumference and coils wound around the pole teeth, a rotor including an eccentric weight formed on a radially outer surface of the shaft, and a permanent magnet integrally formed with the eccentric weight, and a bearing device rotatably supporting the rotor maintaining clearance between the inner circumference of the pole teeth and the rotor. The rotor has a structure in which the shaft, the eccentric weight, and the permanent magnet are integrally formed with each other by a thermoplastic magnetic material composing the permanent magnet.
Public/Granted literature
- US20110181133A1 PRODUCTION METHOD OF VIBRATING MOTOR AND ROTOR FOR VIBRATING MOTOR Public/Granted day:2011-07-28
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