发明公开
- 专利标题： Multi-functional vibration actuator capable of supressing an unstable operation around a resonance frequency
- 专利标题（中）： 振动器，适用于不稳定的运转被抑制在到达共振频率
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申请号： EP01109158.4申请日： 2001-04-12
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公开(公告)号： EP1145770A3公开(公告)日： 2002-01-02
- 发明人: Sakai, Nobuyasu , Suzuki, Fumihiro
- 申请人： TOKIN CORPORATION
- 申请人地址： 7-1, Koriyama 6-chome Taihaku-ku Sendai-shi Miyagi JP
- 专利权人： TOKIN CORPORATION
- 当前专利权人： TOKIN CORPORATION
- 当前专利权人地址： 7-1, Koriyama 6-chome Taihaku-ku Sendai-shi Miyagi JP
- 代理机构： Prüfer, Lutz H., Dipl.-Phys.
- 优先权： JP2000113312 20000414
- 主分类号： B06B1/04
- IPC分类号： B06B1/04 ; G08B6/00
摘要：
In a vibration actuator having a magnetic circuit component (10) and a coil (17) arranged in a gap (14) which is made at one side of the magnetic circuit in a predetermined direction, a space defining member (31,32,19) defines an accommodation space (34) to accommodate the magnetic circuit component and the coil. A supporting unit (16,18) supports the magnetic circuit component and the coil so that they are separately movable in the predetermined direction. The space defining member has a sound release hole (33) faced to the other side of the magnetic circuit component in the predetermined direction.
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