Invention Grant
US08509471B2 Speaker device 有权
扬声器装置

  • Patent Title: Speaker device
  • Patent Title (中): 扬声器装置
  • Application No.: US13141602
    Application Date: 2009-09-25
  • Publication No.: US08509471B2
    Publication Date: 2013-08-13
  • Inventor: Kiyosei Shibata
  • Applicant: Kiyosei Shibata
  • Applicant Address: JP Kobe
  • Assignee: Fujitsu Ten Limited
  • Current Assignee: Fujitsu Ten Limited
  • Current Assignee Address: JP Kobe
  • Agency: Oliff & Berridge, PLC
  • Priority: JP2008-329657 20081225
  • International Application: PCT/JP2009/066624 WO 20090925
  • International Announcement: WO2010/073786 WO 20100701
  • Main IPC: H04R1/00
  • IPC: H04R1/00
Speaker device
Abstract:
A speaker device, wherein vibration of a magnetic circuit section is suppressed with a magnetic influence on the magnetic circuit section suppressed. A speaker device having a vibration section and generating an audio sound by vibration of the vibration section is provided with a magnetic circuit section for forming a magnetic field for vibrating the vibration section and also with a weight section fixed to the magnetic circuit section and suppressing vibration of the magnetic circuit section subjected to reaction force caused by vibration of the vibration section. The weight section is fixed to the magnetic circuit section through a joint section for joining the magnetic circuit section and the weight section to each other, and this forms between the magnetic circuit section and the weight section a predetermined space for magnetically separating the magnetic circuit section and the weight section from each other.
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