发明申请
- 专利标题： MAGNETIC CIRCUIT FOR SPEAKER AND SPEAKER USING SAME
- 专利标题（中）： 使用相同的扬声器和扬声器的磁电路
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申请号： US13823762申请日： 2011-10-12
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公开(公告)号： US20130170676A1公开(公告)日： 2013-07-04
- 发明人: Tetsushi Itano , Masaki Suzumura
- 申请人： Tetsushi Itano , Masaki Suzumura
- 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
- 优先权： JP2010-230216 20101013
- 国际申请： PCT/JP2011/005696 WO 20111012
- 主分类号： H04R3/00
- IPC分类号： H04R3/00
摘要：
A bond magnet according to the present invention is anisotropic, and a magnetic field is oriented from a lowest edge of side surface of the bond magnet toward an upper section of side surface of the bond magnet. Further, the bond magnet is configured such that the upper section of side surface of the bond magnet is disposed closer to a yoke side surface of a yoke than the lower side surface of the bond magnet is, and the upper section of side surface of the bond magnet faces against the yoke side surface. With this, a magnetic gap is provided between the upper section of side surface of the bond magnet and the yoke side surface. Thus, it is possible to improve a magnetism characteristic of the bond magnet, and to achieve both of magnetic efficiency and productivity of a magnetic circuit for a speaker.
公开/授权文献
- US08744116B2 Magnetic circuit for speaker and speaker using same 公开/授权日：2014-06-03
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