JP6173010B2 - 炭素質音響振動板とその製造方法 - Google Patents
炭素質音響振動板とその製造方法 Download PDFInfo
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- JP6173010B2 JP6173010B2 JP2013091277A JP2013091277A JP6173010B2 JP 6173010 B2 JP6173010 B2 JP 6173010B2 JP 2013091277 A JP2013091277 A JP 2013091277A JP 2013091277 A JP2013091277 A JP 2013091277A JP 6173010 B2 JP6173010 B2 JP 6173010B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
Claims (6)
- 炭素多孔体からなる低密度層と、前記低密度層の少なくとも一方に設けられた少なくとも1つの高密度層であって、前記低密度層よりも薄く、前記低密度層よりも密度が高い高密度層とを具備し、
前記低密度層は、前記炭素多孔体の気孔が板の厚み方向に垂直な面内に拡がり拡がった気孔と炭素の壁とが交互に層をなす構造を有する、炭素質音響振動板。 - 前記低密度層の炭素の部分と前記高密度層の炭素とが境目なく連続している請求項1記載の炭素質音響振動板。
- 前記気孔は連続気孔である請求項1または2記載の炭素質音響振動板。
- シート状の高分子多孔体の少なくとも一方の面に少なくとも1つのシート状の高分子物質を重ね、
前記シート状の高分子物質が重ねられた前記シート状の高分子多孔体を非酸化性雰囲気中で焼成して炭素化することを含む炭素質音響振動板の製造方法。 - 前記シート状の高分子多孔体の厚み方向に荷重をかけることによって、気孔が板の厚み方向に垂直な面内に拡がり拡がった気孔と高分子物質の壁とが交互に層をなす構造とすることをさらに含む請求項4記載の方法。
- 前記焼成の前において、前記シート状の高分子物質が重ねられた前記シート状の高分子多孔体を前記焼成の温度よりも低い温度で熱処理することをさらに含む請求項4または5記載の方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013091277A JP6173010B2 (ja) | 2013-04-24 | 2013-04-24 | 炭素質音響振動板とその製造方法 |
PCT/JP2014/061418 WO2014175329A1 (ja) | 2013-04-24 | 2014-04-23 | 炭素質音響振動板とその製造方法 |
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JP2013091277A JP6173010B2 (ja) | 2013-04-24 | 2013-04-24 | 炭素質音響振動板とその製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2014216752A JP2014216752A (ja) | 2014-11-17 |
JP6173010B2 true JP6173010B2 (ja) | 2017-08-02 |
Family
ID=51791899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2013091277A Active JP6173010B2 (ja) | 2013-04-24 | 2013-04-24 | 炭素質音響振動板とその製造方法 |
Country Status (2)
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JP (1) | JP6173010B2 (ja) |
WO (1) | WO2014175329A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6335680B2 (ja) * | 2014-06-25 | 2018-05-30 | 三菱鉛筆株式会社 | 炭素質音響振動板およびスピーカユニット |
CN112543399B (zh) * | 2020-11-30 | 2023-08-18 | 歌尔股份有限公司 | 振膜组件和扬声器 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5273021A (en) * | 1975-12-15 | 1977-06-18 | Pioneer Electronic Corp | Sound generating vibrator plate and method of producing same |
JPS5619296A (en) * | 1979-07-26 | 1981-02-23 | Sony Corp | Speaker diaphragm |
JPS6411498A (en) * | 1987-07-03 | 1989-01-17 | Japan Res Dev Corp | Production of diaphragm |
JP2953022B2 (ja) * | 1990-10-11 | 1999-09-27 | 松下電器産業株式会社 | 振動板の製造方法 |
JP4033048B2 (ja) * | 2003-06-11 | 2008-01-16 | ソニー株式会社 | スピーカ振動板の製造方法及びスピーカ振動板 |
JP5419442B2 (ja) * | 2008-12-26 | 2014-02-19 | 三菱鉛筆株式会社 | 炭素質音響振動板とその製造方法 |
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2013
- 2013-04-24 JP JP2013091277A patent/JP6173010B2/ja active Active
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2014
- 2014-04-23 WO PCT/JP2014/061418 patent/WO2014175329A1/ja active Application Filing
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Publication number | Publication date |
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WO2014175329A1 (ja) | 2014-10-30 |
JP2014216752A (ja) | 2014-11-17 |
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