CA2324394C - Anneaux de mise en court-circuit pour circuits d'attaque de haut-parleurs a deux bobines et a deux entrefers - Google Patents
Anneaux de mise en court-circuit pour circuits d'attaque de haut-parleurs a deux bobines et a deux entrefers Download PDFInfo
- Publication number
- CA2324394C CA2324394C CA002324394A CA2324394A CA2324394C CA 2324394 C CA2324394 C CA 2324394C CA 002324394 A CA002324394 A CA 002324394A CA 2324394 A CA2324394 A CA 2324394A CA 2324394 C CA2324394 C CA 2324394C
- Authority
- CA
- Canada
- Prior art keywords
- pole
- shorting ring
- yoke
- loudspeaker driver
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/041—Voice coil arrangements comprising more than one voice coil unit on the same bobbin
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Des haut-parleurs et d'autres transducteurs du type à deux bobines mobiles/à deux entrefers peuvent être améliorés par l'ajout d'un ou plusieurs anneaux de mise en court-circuit (16A-16S), placés de manière stratégique à proximité des deux entrefers. Ces anneaux de mise en court-circuit ne produisent aucun effet sur un champ magnétique à régime permanent, mais agissent de manière à s'opposer à toute variation de la densité du flux ou à tout déplacement des lignes de flux pouvant être provoqués par la charge appliquée lorsque les bobines mobiles (10A, 10B) sont attaquées par un courant basse fréquence. Plusieurs anneaux peuvent donc être déployés sur divers emplacements, de manière à supprimer le plus efficacement possible la distorsion harmonique d'ordre pair et d'ordre impair, et à réduire l'inductance de la bobine mobile.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7862398P | 1998-03-19 | 1998-03-19 | |
US60/078,623 | 1998-03-19 | ||
PCT/US1999/006084 WO1999048329A1 (fr) | 1998-03-19 | 1999-03-19 | Anneaux de mise en court-circuit pour circuits d'attaque de haut-parleurs a deux bobines et a deux entrefers |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2324394A1 CA2324394A1 (fr) | 1999-09-23 |
CA2324394C true CA2324394C (fr) | 2006-02-07 |
Family
ID=22145231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002324394A Expired - Lifetime CA2324394C (fr) | 1998-03-19 | 1999-03-19 | Anneaux de mise en court-circuit pour circuits d'attaque de haut-parleurs a deux bobines et a deux entrefers |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1072168B1 (fr) |
JP (1) | JP3574403B2 (fr) |
CN (1) | CN1152601C (fr) |
AT (1) | ATE414395T1 (fr) |
AU (1) | AU3194199A (fr) |
CA (1) | CA2324394C (fr) |
DE (1) | DE69939898D1 (fr) |
WO (1) | WO1999048329A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6774510B1 (en) | 2000-10-25 | 2004-08-10 | Harman International Industries, Inc. | Electromagnetic motor with flux stabilization ring, saturation tips, and radiator |
EP1641315B1 (fr) * | 2003-06-18 | 2012-11-14 | Yu Yao Temperature Instrument Factory Co., Ltd. | Lecteur electromagnetique a faible inductance sans excitation du circuit a flux magnetique |
CN101202161B (zh) * | 2007-10-24 | 2012-12-26 | 钱维忠 | 开合式电流互感器 |
CN102149036A (zh) * | 2010-02-09 | 2011-08-10 | 美律实业股份有限公司 | 具有双音圈的扬声器 |
FR2971385B1 (fr) * | 2011-02-08 | 2014-02-14 | Renault Sa | Dispositif de moteur magnetique de transducteur electrodynamique |
EP2833648B1 (fr) * | 2013-08-01 | 2016-04-27 | Harman International Industries, Inc. | Haut-parleur électrodynamique avec éléments conducteurs |
CN107820174B (zh) * | 2017-11-22 | 2020-03-17 | 重庆长安汽车股份有限公司 | 一种车载扬声器磁路结构 |
US11785392B2 (en) | 2019-09-27 | 2023-10-10 | Apple Inc. | Dual function transducer |
US11070920B2 (en) * | 2019-09-27 | 2021-07-20 | Apple Inc. | Dual function transducer |
CN116980800A (zh) * | 2023-09-25 | 2023-10-31 | 苏州墨觉智能电子有限公司 | 一种磁路组件、骨导发声装置及骨导耳机 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3632904A (en) * | 1970-03-24 | 1972-01-04 | Paul Mauz | Moving coil loudspeaker with eddy current suppression |
US3783311A (en) * | 1970-12-19 | 1974-01-01 | Coral Audio Corp | Magnetic device for use in acoustic apparatus |
JPS542647Y2 (fr) * | 1971-03-10 | 1979-02-05 | ||
JPS5235294B2 (fr) * | 1971-12-17 | 1977-09-08 | ||
JP2501948Y2 (ja) * | 1985-09-02 | 1996-06-19 | パイオニア株式会社 | 車載音響装置 |
WO1991005447A1 (fr) * | 1989-10-02 | 1991-04-18 | Jbl, Incorporated | Haut-parleur electrodynamique ameliore |
US5381483A (en) * | 1993-04-05 | 1995-01-10 | Commonwealth Of Puerto Rico | Minimal inductance electrodynamic transducer |
DK54093D0 (da) * | 1993-05-10 | 1993-05-10 | Scan Speak As | Hoejttaler |
WO1996033592A1 (fr) * | 1995-04-18 | 1996-10-24 | Harman International Industries, Inc. | Commande a deux bobines avec boitier multifonction |
-
1999
- 1999-03-19 AT AT99913989T patent/ATE414395T1/de not_active IP Right Cessation
- 1999-03-19 EP EP99913989A patent/EP1072168B1/fr not_active Expired - Lifetime
- 1999-03-19 CA CA002324394A patent/CA2324394C/fr not_active Expired - Lifetime
- 1999-03-19 WO PCT/US1999/006084 patent/WO1999048329A1/fr active Application Filing
- 1999-03-19 CN CNB998054852A patent/CN1152601C/zh not_active Expired - Lifetime
- 1999-03-19 DE DE69939898T patent/DE69939898D1/de not_active Expired - Lifetime
- 1999-03-19 JP JP2000537404A patent/JP3574403B2/ja not_active Expired - Lifetime
- 1999-03-19 AU AU31941/99A patent/AU3194199A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN1152601C (zh) | 2004-06-02 |
JP3574403B2 (ja) | 2004-10-06 |
EP1072168A4 (fr) | 2006-02-08 |
ATE414395T1 (de) | 2008-11-15 |
CA2324394A1 (fr) | 1999-09-23 |
JP2002507873A (ja) | 2002-03-12 |
DE69939898D1 (de) | 2008-12-24 |
EP1072168A1 (fr) | 2001-01-31 |
AU3194199A (en) | 1999-10-11 |
EP1072168B1 (fr) | 2008-11-12 |
CN1298622A (zh) | 2001-06-06 |
WO1999048329A1 (fr) | 1999-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20190319 |