WO2007037153A1 - スピーカ - Google Patents
スピーカ Download PDFInfo
- Publication number
- WO2007037153A1 WO2007037153A1 PCT/JP2006/318562 JP2006318562W WO2007037153A1 WO 2007037153 A1 WO2007037153 A1 WO 2007037153A1 JP 2006318562 W JP2006318562 W JP 2006318562W WO 2007037153 A1 WO2007037153 A1 WO 2007037153A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- edge
- speaker
- diaphragm
- voice coil
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
-
- 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
- H04R9/041—Centering
- H04R9/043—Inner suspension or damper, e.g. spider
-
- 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
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/34—Directing or guiding sound by means of a phase plug
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Definitions
- the present invention relates to a speaker structure.
- FIG. 4 is a cross-sectional view of a conventional speaker.
- the voice coil 22 is placed in the 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 via the edge 24.
- the rear surface of the diaphragm 23 is connected to the frame 25 via the suspension holder 26 and the edge 27.
- the symmetrical configuration of the edges 24 and 27 reduces the distortion of the speaker because the vibration of the diaphragm 23 is close to the vertical symmetry.
- the prior art described above is disclosed, for example, in Japanese Patent Application Publication No. 2004-7332.
- the diameter a of the ring-shaped edge 27 is smaller than the diameter b of the ring-shaped edge 24, so that the harmonic distortion is not sufficiently removed! /.
- a speaker has a frame, a magnetic circuit disposed in the frame, a voice coil movably disposed with respect to a magnetic gap in the magnetic circuit, and an inner periphery connected to the voice coil.
- a diaphragm having an outer peripheral edge connected to the frame via a first edge and a suspension holder connected to the back surface of the diaphragm and connecting the outer peripheral edge to the frame via a second edge.
- the second frame and the second frame force are divided so that the outer edge of the second edge is sandwiched between the divided portions of the first and second frames. This structure greatly eliminates the harmonic distortion of the spin force.
- FIG. 1 is a part of a cross section of a speaker according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view of the speaker frame shown in FIG.
- FIG. 3 is a part of a cross section of a speaker according to another embodiment of the present invention.
- FIG. 4 is a part of a cross section of a conventional speaker.
- FIG. 1 is a cross-sectional view of a speaker according to an embodiment of the present invention.
- the magnetic circuit 1 is arranged at the center of the bottom of the frame 10.
- the magnetic circuit 1 includes a disk-shaped magnet la, a disk-shaped plate lb, a cup-shaped yoke lc, and a magnetic gap 8 formed between the plate lb and the side wall of the yoke lc.
- the voice coil 2 includes a cylindrical bobbin 2a and a coil 2b wound around the cylindrical bobbin 2a.
- the voice coil 2 is arranged so as to be movable in the vertical direction with respect to the magnetic gap 8, and vibrates a diaphragm 3 that is connected to the outer periphery of the bobbin 2a and that is a sound source of the speaker.
- the outer peripheral edge of the diaphragm 3 is connected to the open end of the frame 10 via the first edge 4. Connect the inner periphery of diaphragm 3 to voice coil 2.
- the first edge 4 is formed of a material such as urethane, foam rubber, SBR rubber or cloth so as not to apply a dynamic load to the diaphragm 3.
- the outer peripheral edge of the suspension holder 6 is connected to the frame 10 via the second edge 7, and the middle part of the suspension holder 6 is integrally bonded to the rear surface of the middle part of the diaphragm 3, and the suspension holder
- the inner periphery of 6 is fixed to the voice coil 2 together with the inner periphery of the diaphragm 3.
- the suspension holder 6 becomes an additional mass of the diaphragm 3 and causes a reduction in efficiency. Light weight is desirable and pulp is preferred.
- the second edge 7 is formed of a material such as urethane, foam rubber, SBR rubber or cloth so as not to apply a dynamic load to the diaphragm 3 or the suspension holder 6.
- connection point between the voice coil 2 and the diaphragm 3 serving as a driving point, and the voice coil By having the connection point between 2 and the suspension holder 6, the structure of suppressing vibration and harmonic distortion of the diaphragm 3 is obtained.
- the first edge 4 and the second edge 7 are both ring-shaped, the first edge 4 protrudes upward, the edge 7 protrudes downward, etc. It has a symmetrical amplitude characteristic.
- the cylindrical frame 10 is divided into an upper frame 10a (first frame) and a lower frame 10b (second frame).
- the first edge 4 is connected to the upper frame 10a
- the second edge 7 is connected between the frame 10a and the frame 10b.
- the diameters B and A of the ring-shaped edges 4 and 7 match, and the symmetry of the edges 4 and 7 can be secured, so that the amplitude symmetry And the harmonic distortion of the speaker can be further reduced.
- the voice coil 2 serving as a driving point is driven.
- the first and second edges 4, which form a fulcrum, are the magnetic gap 8 that generates the force, the connection point between the diaphragm 3 and the voice coil 2, and the connection point between the suspension holder 6 and the voice coil 2. Since it is arranged within the area surrounded by 7, it is possible to more effectively reduce the rolling of the diaphragm 3 and the harmonic distortion of the speaker.
- the present invention suppresses speaker distortion, and is particularly useful for high-power speakers.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (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 |
---|---|---|---|
US11/658,913 US8249290B2 (en) | 2005-09-28 | 2006-09-20 | Speaker |
CN2006800007818A CN101044788B (zh) | 2005-09-28 | 2006-09-20 | 扬声器 |
EP06798122A EP1804551B1 (en) | 2005-09-28 | 2006-09-20 | Speaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005281764A JP2007096619A (ja) | 2005-09-28 | 2005-09-28 | スピーカ |
JP2005-281764 | 2005-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007037153A1 true WO2007037153A1 (ja) | 2007-04-05 |
Family
ID=37899581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/318562 WO2007037153A1 (ja) | 2005-09-28 | 2006-09-20 | スピーカ |
Country Status (6)
Country | Link |
---|---|
US (1) | US8249290B2 (ja) |
EP (1) | EP1804551B1 (ja) |
JP (1) | JP2007096619A (ja) |
KR (1) | KR20070057145A (ja) |
CN (1) | CN101044788B (ja) |
WO (1) | WO2007037153A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8290199B2 (en) * | 2009-05-21 | 2012-10-16 | Bose Corporation | Loudspeaker suspension |
JP2012034338A (ja) * | 2010-06-30 | 2012-02-16 | Minebea Co Ltd | スピーカ |
CN202759585U (zh) * | 2012-06-11 | 2013-02-27 | 瑞声光电科技(常州)有限公司 | 扬声器 |
US9485586B2 (en) | 2013-03-15 | 2016-11-01 | Jeffery K Permanian | Speaker driver |
GB2542382A (en) | 2015-09-17 | 2017-03-22 | Gp Acoustics (Uk) Ltd | Low-profile loudspeaker |
CN112449290A (zh) * | 2019-08-30 | 2021-03-05 | 宁波升亚电子有限公司 | 扬声器及其制造方法和发声方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004007332A (ja) * | 2002-04-15 | 2004-01-08 | Matsushita Electric Ind Co Ltd | スピーカ |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132097B1 (ja) * | 1970-12-12 | 1976-09-10 | ||
JPS5132097A (ja) | 1974-09-13 | 1976-03-18 | Japan Radio Co Ltd | Mogishikaimokuhyoeishasochi |
US4565905A (en) * | 1982-04-28 | 1986-01-21 | International Jensen Incoporated | Loudspeaker construction |
KR100445212B1 (ko) * | 1996-05-31 | 2004-12-03 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 전기역학적확성기및확성기시스템 |
KR100452935B1 (ko) * | 2001-02-13 | 2004-10-14 | 마쯔시다덴기산교 가부시키가이샤 | 스피커 |
DE10120281C1 (de) * | 2001-04-25 | 2002-12-05 | Harman Audio Electronic Sys | Lautsprecher |
KR100500804B1 (ko) * | 2001-06-11 | 2005-07-12 | 마츠시타 덴끼 산교 가부시키가이샤 | 스피커 |
JP3600983B2 (ja) * | 2002-02-15 | 2004-12-15 | ミネベア株式会社 | スピーカ |
JP3651470B2 (ja) * | 2003-03-31 | 2005-05-25 | 松下電器産業株式会社 | スピーカ |
JP4610890B2 (ja) * | 2003-12-24 | 2011-01-12 | パイオニア株式会社 | スピーカ装置 |
JP2005252924A (ja) * | 2004-03-08 | 2005-09-15 | Matsushita Electric Ind Co Ltd | スピーカ |
US7570774B2 (en) * | 2004-05-25 | 2009-08-04 | Estec Corporation | Speaker having improved sound-radiating function to both directions |
US7324569B2 (en) * | 2004-09-29 | 2008-01-29 | Axsun Technologies, Inc. | Method and system for spectral stitching of tunable semiconductor sources |
JP4639142B2 (ja) * | 2005-11-21 | 2011-02-23 | パイオニア株式会社 | スピーカ装置 |
JP4533465B2 (ja) | 2007-06-01 | 2010-09-01 | 成幸 五十嵐 | 空調可能な植栽用鉢 |
-
2005
- 2005-09-28 JP JP2005281764A patent/JP2007096619A/ja active Pending
-
2006
- 2006-09-20 KR KR1020077003230A patent/KR20070057145A/ko not_active Application Discontinuation
- 2006-09-20 WO PCT/JP2006/318562 patent/WO2007037153A1/ja active Application Filing
- 2006-09-20 US US11/658,913 patent/US8249290B2/en active Active
- 2006-09-20 CN CN2006800007818A patent/CN101044788B/zh active Active
- 2006-09-20 EP EP06798122A patent/EP1804551B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 EP1804551A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20090232344A1 (en) | 2009-09-17 |
KR20070057145A (ko) | 2007-06-04 |
EP1804551B1 (en) | 2013-02-27 |
CN101044788A (zh) | 2007-09-26 |
EP1804551A4 (en) | 2011-01-19 |
US8249290B2 (en) | 2012-08-21 |
EP1804551A1 (en) | 2007-07-04 |
JP2007096619A (ja) | 2007-04-12 |
CN101044788B (zh) | 2012-01-04 |
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