Invention Grant
- Patent Title: Diaphragm and loudspeaker using the same
- Patent Title (中): 隔膜和扬声器使用相同
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Application No.: US12824412Application Date: 2010-06-28
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Publication No.: US08385584B2Publication Date: 2013-02-26
- Inventor: Jia-Ping Wang , Liang Liu
- Applicant: Jia-Ping Wang , Liang Liu
- 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: CN200910109831 20091117
- Main IPC: H04R1/00
- IPC: H04R1/00 ; H04R9/06 ; H04R11/02
Abstract:
A diaphragm includes a central portion and an edge portion around the central portion. The central portion includes a plurality of carbon nanotubes therein. The central portion is a carbon nanotube structure or a carbon nanotube composite structure. A loudspeaker using the diaphragm is also disclosed. The loudspeaker includes the diaphragm and a voice coil connected to the diaphragm. The voice coil is connected to an outer periphery of the central portion or a joint portion between the central portion and the edge portion.
Public/Granted literature
- US20110116677A1 DIAPHRAGM AND LOUDSPEAKER USING THE SAME Public/Granted day:2011-05-19
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