Invention Grant
- Patent Title: Damper and loudspeaker using the same
- Patent Title (中): 阻尼器和扬声器使用相同
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Application No.: US12824356Application Date: 2010-06-28
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Publication No.: US08391537B2Publication Date: 2013-03-05
- Inventor: Liang Liu , Jia-Ping Wang
- Applicant: Liang Liu , Jia-Ping Wang
- Applicant Address: CN Beijing TW New Taipei
- Assignee: Tsinghua University,Hon Hai Precision Industry Co., Ltd.
- Current Assignee: Tsinghua University,Hon Hai Precision Industry Co., Ltd.
- Current Assignee Address: CN Beijing TW New Taipei
- Agency: Altis Law Group, Inc.
- Priority: CN200910109312 20090811
- Main IPC: H04R1/02
- IPC: H04R1/02
Abstract:
A damper includes a paper matrix and a plurality of carbon nanotubes dispersed in the paper matrix. A loudspeaker includes a magnetic circuit, a bobbin, a voice coil, a damper, and a diaphragm. The magnetic circuit defines a magnetic gap. The bobbin is located in the magnetic gap. The voice coil is wounded on the bobbin. The damper is fixed to the bobbin and includes a paper matrix and a plurality of carbon nanotubes dispersed in the paper matrix. The diaphragm includes an inner rim fixed to the bobbin and mechanically held by the damper.
Public/Granted literature
- US20110038504A1 DAMPER AND LOUDSPEAKER USING THE SAME Public/Granted day:2011-02-17
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