EP0685981A3 - Loudspeaker. - Google Patents

Loudspeaker. Download PDF

Info

Publication number
EP0685981A3
EP0685981A3 EP95107543A EP95107543A EP0685981A3 EP 0685981 A3 EP0685981 A3 EP 0685981A3 EP 95107543 A EP95107543 A EP 95107543A EP 95107543 A EP95107543 A EP 95107543A EP 0685981 A3 EP0685981 A3 EP 0685981A3
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
coil carrier
metal
ultrasonic welding
insulation device
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.)
Granted
Application number
EP95107543A
Other languages
German (de)
French (fr)
Other versions
EP0685981B1 (en
EP0685981A2 (en
Inventor
Stefan Geisenberger
Manfred Aigner
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 Audio Electronic Systems GmbH
Original Assignee
Nokia Technology GmbH
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
Priority claimed from DE4422486A external-priority patent/DE4422486A1/en
Application filed by Nokia Technology GmbH filed Critical Nokia Technology GmbH
Publication of EP0685981A2 publication Critical patent/EP0685981A2/en
Publication of EP0685981A3 publication Critical patent/EP0685981A3/en
Application granted granted Critical
Publication of EP0685981B1 publication Critical patent/EP0685981B1/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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting

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)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The loudspeaker membrane (11) is made of metal, to allow it to be secured to the metal coil carrier (10) for the loudspeaker coil via ultrasonic welding, with an intermediate insulation device (16) fitted between the facing planar surfaces of the coil carrier and the loudspeaker membrane. The insulation device has outer metal layers (19.1, 19.2) which are suitable for ultrasonic welding to the coil carrier and the loudspeaker membrane respectively, on either side of an intermediate insulator (18). <IMAGE>
EP95107543A 1994-06-01 1995-05-18 Loudspeaker Expired - Lifetime EP0685981B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4419253 1994-06-01
DE4419253 1994-06-01
DE4422486 1994-06-28
DE4422486A DE4422486A1 (en) 1994-06-01 1994-06-28 speaker

Publications (3)

Publication Number Publication Date
EP0685981A2 EP0685981A2 (en) 1995-12-06
EP0685981A3 true EP0685981A3 (en) 1996-06-05
EP0685981B1 EP0685981B1 (en) 2001-08-29

Family

ID=25937100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107543A Expired - Lifetime EP0685981B1 (en) 1994-06-01 1995-05-18 Loudspeaker

Country Status (4)

Country Link
US (1) US5699439A (en)
EP (1) EP0685981B1 (en)
JP (1) JPH0847089A (en)
AT (1) ATE205040T1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336499B (en) * 1998-03-18 2002-06-12 Nokia Mobile Phones Ltd Audio diaphragm mounting arrangements in radio telephone handsets
AU4419600A (en) * 1999-05-06 2000-11-21 New Transducers Limited Vibration exciter
US6372066B1 (en) 1999-05-06 2002-04-16 New Transducers Limited Vibration exciter
EP1128705B1 (en) * 2000-02-25 2009-05-06 Star Micronics Co., Ltd. Speaker
JP3619736B2 (en) 2000-02-25 2005-02-16 スター精密株式会社 Speaker
US20070053545A1 (en) * 2005-09-07 2007-03-08 Steff Lin Speaker
GB2518660A (en) 2013-09-27 2015-04-01 Pss Belgium Nv Loudspeaker
KR101534470B1 (en) * 2014-04-25 2015-07-08 에스텍 주식회사 Piezoelectric speaker
GB201513555D0 (en) 2015-07-31 2015-09-16 Pss Belgium Nv Audio system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61220592A (en) * 1985-03-26 1986-09-30 Kozo Sakane Speaker device
EP0251057A1 (en) * 1986-06-21 1988-01-07 EWD Electronic-Werke Deutschland GmbH Loudspeaker
EP0297572A1 (en) * 1987-07-03 1989-01-04 EWD Electronic-Werke Deutschland GmbH Membrane for loudspeaker
WO1992009180A1 (en) * 1990-11-16 1992-05-29 Stage Accompany B.V. Loudspeaker with coated voice coil

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925626A (en) * 1974-02-22 1975-12-09 Jr Robert John Stallings Dynamic speaker having dome diaphragm and basket frequency
SU522555A1 (en) * 1975-01-02 1976-07-25 Специальное Конструкторское Бюро Кировоградского Завода Радиоизделий Electrodynamic Loudspeaker Head
AT338351B (en) * 1975-04-29 1977-08-25 Philips Nv ELECTROACOUSTIC CONVERTER, METHOD FOR MANUFACTURING SUCH A CONVERTER AND DEVICE FOR CARRYING OUT SUCH METHODS
NL8200416A (en) * 1982-02-04 1983-09-01 Philips Nv FLAT MEMBRANE CONVERTER AND METHOD FOR MAKING SUCH A CONVERTER
JPS58209293A (en) * 1982-05-31 1983-12-06 Hitachi Ltd Speaker
US4590333A (en) * 1984-06-14 1986-05-20 John Strohbeen Multidriver loudspeaker
US4825533A (en) * 1985-10-11 1989-05-02 Pioneer Electronic Corporation Method of making a voice coil with rectangular coil wire and foil leads
US5062140A (en) * 1988-04-27 1991-10-29 Sony Corporation Induction speaker
AT397898B (en) * 1991-09-25 1994-07-25 Akg Akustische Kino Geraete MEMBRANE FOR ELECTRODYNAMIC CONVERTERS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61220592A (en) * 1985-03-26 1986-09-30 Kozo Sakane Speaker device
EP0251057A1 (en) * 1986-06-21 1988-01-07 EWD Electronic-Werke Deutschland GmbH Loudspeaker
EP0297572A1 (en) * 1987-07-03 1989-01-04 EWD Electronic-Werke Deutschland GmbH Membrane for loudspeaker
WO1992009180A1 (en) * 1990-11-16 1992-05-29 Stage Accompany B.V. Loudspeaker with coated voice coil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 61 (E - 483) 25 February 1987 (1987-02-25) *

Also Published As

Publication number Publication date
EP0685981B1 (en) 2001-08-29
ATE205040T1 (en) 2001-09-15
JPH0847089A (en) 1996-02-16
EP0685981A2 (en) 1995-12-06
US5699439A (en) 1997-12-16

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