CA2324394C - Shorting rings in dual-coil dual-gap loudspeaker drivers - Google Patents

Shorting rings in dual-coil dual-gap loudspeaker drivers Download PDF

Info

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
Application number
CA002324394A
Other languages
English (en)
French (fr)
Other versions
CA2324394A1 (en
Inventor
Douglas J. Button
Ralph E. Hyde
Alex V. Salvatti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harman International Industries Inc
Original Assignee
Harman International Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harman International Industries Inc filed Critical Harman International Industries Inc
Publication of CA2324394A1 publication Critical patent/CA2324394A1/en
Application granted granted Critical
Publication of CA2324394C publication Critical patent/CA2324394C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
CA002324394A 1998-03-19 1999-03-19 Shorting rings in dual-coil dual-gap loudspeaker drivers Expired - Lifetime CA2324394C (en)

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 (en) 1998-03-19 1999-03-19 Shorting rings in dual-coil dual-gap loudspeaker drivers

Publications (2)

Publication Number Publication Date
CA2324394A1 CA2324394A1 (en) 1999-09-23
CA2324394C true CA2324394C (en) 2006-02-07

Family

ID=22145231

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002324394A Expired - Lifetime CA2324394C (en) 1998-03-19 1999-03-19 Shorting rings in dual-coil dual-gap loudspeaker drivers

Country Status (8)

Country Link
EP (1) EP1072168B1 (de)
JP (1) JP3574403B2 (de)
CN (1) CN1152601C (de)
AT (1) ATE414395T1 (de)
AU (1) AU3194199A (de)
CA (1) CA2324394C (de)
DE (1) DE69939898D1 (de)
WO (1) WO1999048329A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
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
US7412071B2 (en) * 2003-06-18 2008-08-12 Yuyao Temperature Instrument Factory Co., Ltd. Low-inductance electromagnetic drive without driving the magnetic flux circuit
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
US9100738B2 (en) 2013-08-01 2015-08-04 Harman International Industries, Inc. Electrodynamic loudspeaker with conducting elements
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
US11070920B2 (en) * 2019-09-27 2021-07-20 Apple Inc. Dual function transducer
US11785392B2 (en) 2019-09-27 2023-10-10 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)

* Cited by examiner, † Cited by third party
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 (de) * 1971-03-10 1979-02-05
JPS5235294B2 (de) * 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 (en) * 1989-10-02 1991-04-18 Jbl, Incorporated Improved electrodynamic loudspeaker
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
ES2286821T3 (es) * 1995-04-18 2007-12-01 Harman International Industries Incorporated Activador de doble bobina con alojamiento multifuncion.

Also Published As

Publication number Publication date
ATE414395T1 (de) 2008-11-15
AU3194199A (en) 1999-10-11
WO1999048329A1 (en) 1999-09-23
CN1298622A (zh) 2001-06-06
DE69939898D1 (de) 2008-12-24
JP2002507873A (ja) 2002-03-12
EP1072168B1 (de) 2008-11-12
CN1152601C (zh) 2004-06-02
EP1072168A4 (de) 2006-02-08
CA2324394A1 (en) 1999-09-23
EP1072168A1 (de) 2001-01-31
JP3574403B2 (ja) 2004-10-06

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Effective date: 20190319