WO2007043331A1 - スピーカ - Google Patents
スピーカ Download PDFInfo
- Publication number
- WO2007043331A1 WO2007043331A1 PCT/JP2006/319051 JP2006319051W WO2007043331A1 WO 2007043331 A1 WO2007043331 A1 WO 2007043331A1 JP 2006319051 W JP2006319051 W JP 2006319051W WO 2007043331 A1 WO2007043331 A1 WO 2007043331A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diaphragm
- voice coil
- peripheral edge
- edge
- groove
- Prior art date
Links
Classifications
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
Definitions
- the present invention relates to a speaker structure.
- FIG. 3 is a partial cross-sectional view of a conventional speaker.
- a voice coil 22 is placed in the magnetic gap of the magnetic circuit 21.
- the inner peripheral edge of the diaphragm 23 is connected to the voice coil 22.
- the outer peripheral edge of the diaphragm 23 is connected to the frame 25 through the edge 24.
- the symmetrical configuration of the edges 24 and 27 reduces the distortion of the loudspeaker because the vibration of the diaphragm 23 is close to the vertical symmetry.
- Japanese Patent Application Publication No. 2004-7332 is known.
- the conventional speaker shown in FIG. 3 has little distortion even if the diaphragm 23 is vibrated greatly to increase the output, but the connection between the diaphragm 23 and the voice coil 22 is damaged by an excessive load. There is a risk.
- a speaker of the present invention includes a frame, a magnetic circuit disposed in the frame, a voice coil movably disposed with respect to a magnetic gap in the magnetic circuit, a groove surrounding an outer periphery of the voice coil, A diaphragm that inserts the inner peripheral edge into the groove and connects the outer peripheral edge to the frame via the first edge, and a suspension holder that is connected to the rear surface of the diaphragm and connects the outer peripheral edge to the frame via the second edge
- the inner peripheral edge of the diaphragm is fixed to the voice coil by an adhesive filling the groove.
- the fixed strength between the diaphragm and the voice coil is large, which makes it possible to increase the output of the speaker.
- FIG. 1 is a cross-sectional view of a speaker of the present invention.
- FIG. 2 is an enlarged cross-sectional view of a main part of the speaker of the present invention.
- FIG. 3 is a partial cross-sectional view of a conventional speaker. Explanation of symbols
- FIG. 1 is a cross-sectional view of the speaker of the present invention.
- the magnetic circuit 1 includes a disk-shaped magnet la, a disk-shaped plate lb, a cylindrical yoke lc, and a magnetic gap 8 formed between the plate lb and the yoke 1c.
- the voice coil 2 is arranged so as to be movable in the vertical direction with respect to the magnetic gap 8 and vibrates up and down a diaphragm 3 connected to the voice coil 2 and serving as a sound source of a speaker.
- a dust cap 9 for dust protection is installed on the upper part of the voice coil 2.
- the outer peripheral edge of the diaphragm 3 is connected to the open end of the frame 5 via an edge 4 (first edge).
- the inner peripheral edge of the diaphragm 3 is fixed to the voice coil 2.
- the suspension holder 10 is bonded to the back surface of the diaphragm 3.
- the outer peripheral edge of the suspension holder 10 is connected to the frame 5 via the edge 7 (second edge). Since the suspension holder 10 becomes an additional mass of the diaphragm 3 and causes a reduction in efficiency, it is desirable that the weight is as light as possible, and pulp and resin are preferred.
- edges 4 and 7 are formed of a material such as urethane, foam rubber, SBR rubber or cloth so that a dynamic load is not applied to the diaphragm 3 and the suspension holder 10. Edge 4 protrudes upward, Edge 7 protrudes downward. Since the edges 4 and 7 are symmetric, the distortion when the diaphragm 3 vibrates in the vertical direction is reduced.
- FIG. 2 shows fixing of the diaphragm 3 to the voice coil 2.
- a groove 12 is installed around the outer periphery of the voice coil 2. It is preferable that the bottom 11 of the groove 12 contacts the coil 2a of the voice coil 2 to position the groove 12. Since the upper end of the coil 2a of the voice coil 2 is accurately controlled, contact the bottom 11 of the groove 12 with the upper end of the coil 2a so that the fixed position of the diaphragm 3 with respect to the voice coil 2 is accurately aligned. be able to.
- An uncured and fluid adhesive 13 is placed in the groove 12, and the inner peripheral edge of the diaphragm 3 is immersed in the adhesive 13.
- the uncured adhesive 13 is poured into the groove 12.
- a gap 14 is provided between the outer periphery of the voice coil 2 and the diaphragm 3 to facilitate the flow of the adhesive 13.
- the adhesive 13 a two-component reaction type acrylic adhesive that has both high fluidity when uncured and quick drying is suitable. As a result, the diaphragm 3 is firmly fixed to the voice coil 2, and the diaphragm can be driven with high output.
- the present invention is useful for a high-output, low-distortion speaker because it can reduce the distortion of the speaker and simultaneously drive the diaphragm with a high output.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06810576A EP1892997A4 (en) | 2005-10-11 | 2006-09-26 | SPEAKER |
CN2006800012888A CN101069452B (zh) | 2005-10-11 | 2006-09-26 | 扬声器 |
US11/662,052 US8009856B2 (en) | 2005-10-11 | 2006-09-26 | Speaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-296285 | 2005-10-11 | ||
JP2005296285A JP2007110209A (ja) | 2005-10-11 | 2005-10-11 | スピーカ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007043331A1 true WO2007043331A1 (ja) | 2007-04-19 |
Family
ID=37942582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/319051 WO2007043331A1 (ja) | 2005-10-11 | 2006-09-26 | スピーカ |
Country Status (6)
Country | Link |
---|---|
US (1) | US8009856B2 (ja) |
EP (1) | EP1892997A4 (ja) |
JP (1) | JP2007110209A (ja) |
KR (1) | KR100899719B1 (ja) |
CN (1) | CN101069452B (ja) |
WO (1) | WO2007043331A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1992996B (zh) * | 2005-12-30 | 2012-02-29 | 丁轶 | 扬声器振膜的分体式支承结构 |
JP4867774B2 (ja) * | 2007-04-26 | 2012-02-01 | パナソニック株式会社 | スピーカ |
WO2009063567A1 (ja) * | 2007-11-16 | 2009-05-22 | Pioneer Corporation | スピーカ装置 |
JP5545016B2 (ja) | 2010-05-12 | 2014-07-09 | ソニー株式会社 | 撮像装置 |
US8442259B2 (en) * | 2010-06-04 | 2013-05-14 | Beats Electronics, Llc | System for vibration confinement |
US9485586B2 (en) | 2013-03-15 | 2016-11-01 | Jeffery K Permanian | Speaker driver |
WO2021117663A1 (ja) * | 2019-12-09 | 2021-06-17 | フォスター電機株式会社 | スピーカ |
US12069459B2 (en) * | 2020-10-19 | 2024-08-20 | Harman International Industries, Incorporated | Loudspeaker assembly with a separate voice coil assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5774599U (ja) * | 1980-10-27 | 1982-05-08 | ||
US20020071588A1 (en) | 2000-12-08 | 2002-06-13 | Lucio Proni | Loudspeaker and method of assembling same |
EP1324632A1 (en) | 2001-06-11 | 2003-07-02 | Matsushita Electric Industrial Co., Ltd. | Speaker |
JP2004007332A (ja) * | 2002-04-15 | 2004-01-08 | Matsushita Electric Ind Co Ltd | スピーカ |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1873062A (en) * | 1928-01-21 | 1932-08-23 | Fed Telegraph Co | Sound reproducer |
JPS5774599A (en) | 1980-10-29 | 1982-05-10 | Yoshinori Akimoto | Dummy cartridge for cleaning gunbarrel |
KR0140017Y1 (ko) | 1993-05-12 | 1999-05-15 | 윤종용 | 스피커 |
US5625701A (en) * | 1993-08-05 | 1997-04-29 | Bose Corporation | Loudspeaker diaphragm attaching |
JPH11355895A (ja) * | 1998-06-12 | 1999-12-24 | Matsushita Electric Ind Co Ltd | スピーカ用振動板の製造方法 |
JP3619736B2 (ja) * | 2000-02-25 | 2005-02-16 | スター精密株式会社 | スピーカ |
DE60140297D1 (de) * | 2001-02-13 | 2009-12-10 | Panasonic Corp | Lautsprecher |
JP2003219498A (ja) * | 2002-01-25 | 2003-07-31 | Star Micronics Co Ltd | 電気音響変換器 |
JP2005252924A (ja) * | 2004-03-08 | 2005-09-15 | Matsushita Electric Ind Co Ltd | スピーカ |
-
2005
- 2005-10-11 JP JP2005296285A patent/JP2007110209A/ja active Pending
-
2006
- 2006-09-26 US US11/662,052 patent/US8009856B2/en not_active Expired - Fee Related
- 2006-09-26 CN CN2006800012888A patent/CN101069452B/zh not_active Expired - Fee Related
- 2006-09-26 EP EP06810576A patent/EP1892997A4/en not_active Withdrawn
- 2006-09-26 WO PCT/JP2006/319051 patent/WO2007043331A1/ja active Application Filing
- 2006-09-26 KR KR1020077005256A patent/KR100899719B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5774599U (ja) * | 1980-10-27 | 1982-05-08 | ||
US20020071588A1 (en) | 2000-12-08 | 2002-06-13 | Lucio Proni | Loudspeaker and method of assembling same |
EP1324632A1 (en) | 2001-06-11 | 2003-07-02 | Matsushita Electric Industrial Co., Ltd. | Speaker |
JP2004007332A (ja) * | 2002-04-15 | 2004-01-08 | Matsushita Electric Ind Co Ltd | スピーカ |
Non-Patent Citations (1)
Title |
---|
See also references of EP1892997A4 |
Also Published As
Publication number | Publication date |
---|---|
JP2007110209A (ja) | 2007-04-26 |
US20090262971A1 (en) | 2009-10-22 |
EP1892997A4 (en) | 2011-08-10 |
CN101069452B (zh) | 2012-05-23 |
KR100899719B1 (ko) | 2009-05-27 |
CN101069452A (zh) | 2007-11-07 |
EP1892997A1 (en) | 2008-02-27 |
KR20070088506A (ko) | 2007-08-29 |
US8009856B2 (en) | 2011-08-30 |
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