发明授权
- 专利标题: Electro-acoustic converter and electronic device using the same
- 专利标题(中): 电声转换器和使用其的电子装置
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申请号: US10599800申请日: 2005-06-22
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公开(公告)号: US07583812B2公开(公告)日: 2009-09-01
- 发明人: Kazuki Honda , Koji Sano , Kazuya Yamasaki , Kazutaka Kubo , Masahide Sumiyama
- 申请人: Kazuki Honda , Koji Sano , Kazuya Yamasaki , Kazutaka Kubo , Masahide Sumiyama
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: RatnerPrestia
- 优先权: JP2004-195190 20040701
- 国际申请: PCT/JP2005/011414 WO 20050622
- 国际公布: WO2006/003821 WO 20060112
- 主分类号: H04R25/00
- IPC分类号: H04R25/00
摘要:
In an electro-acoustic converter, a frame is bonded to the magnetic circuit, and the diaphragm is bonded to a circumferential edge of the frame. The voice coil is attached to the diaphragm and a part thereof is located in a magnetic gap of the magnetic circuit. The terminal is made of a sheet metal having spring property and electrical conductivity, and a part thereof is fixed to the frame. The terminal has a bent portion and a contact portion, and is electrically connected to the voice coil. The stopper is provided around a portion of the terminal at one side nearer to the frame than the bent portion, and protrudes from a surface of the frame where the contact portion of the terminal protrudes. The stopper restricts bending of the terminal to an extent within a threshold value of reversibility of a material the sheet metal.
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