发明名称 |
Magnetic sound transducer containing flat vibration motor |
摘要 |
A vibration motor and speaker device includes a speaker excitation magnet around a flat brushless vibration motor which acts as a speaker magnetic pole. the vibration motor has a case constituting motor housing that comprises a magnetic body on a lateral periphery, a ceiling portion made of a nonmagnetic body, and a detent torque generation part disposed on a bracket and receiving the magnetic field of a rotor magnet. The detent torque generation part is separated from the magnetic body portion of the motor housing thus reducing effects of the magnetic field of the speaker excitation magnet.
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申请公布号 |
US2006091747(A1) |
申请公布日期 |
2006.05.04 |
申请号 |
US20050141734 |
申请日期 |
2005.05.31 |
申请人 |
YAMAGUCHI TADAO;OSAKI TAKESHI;FUJII KENTARO;KOYANAGI NAOHISA |
发明人 |
YAMAGUCHI TADAO;OSAKI TAKESHI;FUJII KENTARO;KOYANAGI NAOHISA |
分类号 |
H02K7/06;H04R9/06 |
主分类号 |
H02K7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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