EP1182907A3 - Electroacoustic transducer - Google Patents

Electroacoustic transducer Download PDF

Info

Publication number
EP1182907A3
EP1182907A3 EP01307079A EP01307079A EP1182907A3 EP 1182907 A3 EP1182907 A3 EP 1182907A3 EP 01307079 A EP01307079 A EP 01307079A EP 01307079 A EP01307079 A EP 01307079A EP 1182907 A3 EP1182907 A3 EP 1182907A3
Authority
EP
European Patent Office
Prior art keywords
clb1
cla1
conductor pattern
pattern portions
magnetic gap
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
EP01307079A
Other languages
German (de)
French (fr)
Other versions
EP1182907B1 (en
EP1182907A2 (en
Inventor
Takashi c/o Pioneer Corporation Oyaba
Shouichiro c/o Pioneer Corporation Terauchi
Tomonori c/o Pioneer Corporation Ishizuki
Katsutoki c/o Pioneer Corporation Hanayama
Ryuichi c/o Pioneer Corporation Kato
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
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 Pioneer Corp filed Critical Pioneer Corp
Publication of EP1182907A2 publication Critical patent/EP1182907A2/en
Publication of EP1182907A3 publication Critical patent/EP1182907A3/en
Application granted granted Critical
Publication of EP1182907B1 publication Critical patent/EP1182907B1/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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • H04R9/025—Magnetic circuit

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

Conductor pattern portions CLa1 and CLb1 are printed on a center portion of a polymeric resin film, and the center portion is folded and then bonded, thereby forming a diaphragm 21 which integrally has a flat plate-like portion 23 having the conductor pattern portions CLa1 and CLb1, and first and second vibrating sections 21a and 21b having a curved shape. A magnet 17 and yokes 18 and 19 form a magnetic circuit and a magnetic gap MG. The flat plate-like portion 23 is inserted into the magnetic gap MG. The whole diaphragm 21 is supported by a support member 20 in a floating state. In this structure, when an audio signal is supplied to the conductor pattern portions CLa1 and CLb1, the flat plate-like portion 23 is vibrated in a direction H by dynamic force generated by the magnetic field in the magnetic gap MG, and currentin the conductor pattern portions CLa1 and CLb1 which are inserted into the magnetic gap MG, and also the first and second vibrating sections 21a and 21b are vibrated in the direction H, so that a reproduced sound of excellent high-frequency characteristics is released.
EP20010307079 2000-08-24 2001-08-20 Electroacoustic transducer Expired - Lifetime EP1182907B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000253584 2000-08-24
JP2000253584A JP2002078079A (en) 2000-08-24 2000-08-24 Electroacoustic transducer

Publications (3)

Publication Number Publication Date
EP1182907A2 EP1182907A2 (en) 2002-02-27
EP1182907A3 true EP1182907A3 (en) 2003-06-18
EP1182907B1 EP1182907B1 (en) 2006-02-22

Family

ID=18742655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010307079 Expired - Lifetime EP1182907B1 (en) 2000-08-24 2001-08-20 Electroacoustic transducer

Country Status (4)

Country Link
EP (1) EP1182907B1 (en)
JP (1) JP2002078079A (en)
CN (1) CN1346230A (en)
DE (1) DE60117346T2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007019623A (en) * 2005-07-05 2007-01-25 Jr Higashi Nippon Consultants Kk Speaker
JP4687400B2 (en) * 2005-11-07 2011-05-25 ソニー株式会社 Speaker device
JP4677341B2 (en) * 2005-12-21 2011-04-27 パイオニア株式会社 Speaker device and mobile phone
US8041071B2 (en) 2006-12-27 2011-10-18 Pioneer Corporation Diaphragm and speaker device
JP5191796B2 (en) * 2008-05-16 2013-05-08 アルパイン株式会社 Speaker
CN101511048B (en) * 2009-03-16 2012-09-05 歌尔声学股份有限公司 Electro-acoustic converter with novel vibrating system and manufacturing method for vibrating system
CN102256195A (en) * 2010-09-01 2011-11-23 歌尔声学股份有限公司 Moving-coil type electro-acoustic transducer
HU229608B1 (en) 2011-10-04 2014-03-28 Zoltan Bay Loudspeaker
JP6048470B2 (en) 2013-10-22 2016-12-21 ヤマハ株式会社 Electroacoustic transducer
JP6048469B2 (en) * 2013-10-22 2016-12-21 ヤマハ株式会社 Electroacoustic transducer
JP2015233272A (en) * 2014-05-14 2015-12-24 ヤマハ株式会社 Electroacoustic transducer
JP6435662B2 (en) * 2014-06-27 2018-12-12 ヤマハ株式会社 Electroacoustic transducer
JP6394158B2 (en) 2014-08-01 2018-09-26 ヤマハ株式会社 Electroacoustic transducer
JP6123838B2 (en) * 2014-09-29 2017-05-10 ヤマハ株式会社 Electroacoustic transducer
WO2016052022A1 (en) * 2014-09-29 2016-04-07 ヤマハ株式会社 Electroacoustic transducer
WO2016110992A1 (en) * 2015-01-09 2016-07-14 ヤマハ株式会社 Electroacoustic transducer
WO2016110991A1 (en) * 2015-01-09 2016-07-14 ヤマハ株式会社 Electroacoustic transducer
CN110087171A (en) * 2018-01-25 2019-08-02 张侠辅 Cover the 3D vibrating membrane loudspeaker of matrix
JP7455659B2 (en) 2020-05-21 2024-03-26 アルプスアルパイン株式会社 speaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276449A (en) * 1978-06-01 1981-06-30 Tadashi Sawafuji Speaker or microphone having corrugated diaphragm with conductors thereon
JPS58207794A (en) * 1982-05-28 1983-12-03 Seiichi Sato Electromagnetic acoustic converter
WO1994014294A1 (en) * 1992-12-08 1994-06-23 Linaeum Corporation Audio transducer with flexible foam enclosure
WO2000041492A2 (en) * 1999-01-13 2000-07-20 Ronaszeki Ferenc Wide band loudspeaker with strip diaphragm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276449A (en) * 1978-06-01 1981-06-30 Tadashi Sawafuji Speaker or microphone having corrugated diaphragm with conductors thereon
JPS58207794A (en) * 1982-05-28 1983-12-03 Seiichi Sato Electromagnetic acoustic converter
WO1994014294A1 (en) * 1992-12-08 1994-06-23 Linaeum Corporation Audio transducer with flexible foam enclosure
WO2000041492A2 (en) * 1999-01-13 2000-07-20 Ronaszeki Ferenc Wide band loudspeaker with strip diaphragm

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 059 (E - 232) 17 March 1984 (1984-03-17) *

Also Published As

Publication number Publication date
DE60117346D1 (en) 2006-04-27
DE60117346T2 (en) 2006-10-12
JP2002078079A (en) 2002-03-15
EP1182907B1 (en) 2006-02-22
EP1182907A2 (en) 2002-02-27
CN1346230A (en) 2002-04-24

Similar Documents

Publication Publication Date Title
EP1182907A3 (en) Electroacoustic transducer
US11595750B2 (en) Multi-range speaker containing multiple diaphragms
EP1257148A2 (en) Loudspeaker for a portable communication device
JP4289343B2 (en) Speaker drive device
JP2002531037A (en) Electro-acoustic converter having moving magnet structure and conversion method therefor
JP4912034B2 (en) Microphone
EP1162864A3 (en) Speaker structure
JP2002541748A (en) Hearing aid compatible piezoelectric speaker
EP1450578A2 (en) Electroacoustic transducer
JP2007005872A (en) Ultrasonic speaker system
EP0701386A3 (en) Speaker and drive device therefor
EP0077228B1 (en) Electroacoustic transducer
US5727076A (en) Audio transducer having piezoelectric device
JP2003236467A (en) Vibration actuator and electroacoustic transducer
CN219227804U (en) Assembly for enhancing bass effect of loudspeaker and loudspeaker
JP2000270396A (en) Speaker
JPS5810040B2 (en) Musikosei speaker
JPH11275688A (en) Loudspeaker
JP2000261889A (en) Electromagnetic acoustic transducer
WO2001076320A3 (en) Acoustic transducer for broad-band loudspeakers or headphones
KR20020029536A (en) Speaker
KR200145349Y1 (en) One part form vibration unit of headphone
KR200264896Y1 (en) Flat speakers
WO2007001035A1 (en) Ultrasonic speaker system
JPH0695799B2 (en) Vibration plate for speakers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7H 04R 31/00 A

Ipc: 7H 04R 9/04 B

17P Request for examination filed

Effective date: 20031209

17Q First examination report despatched

Effective date: 20040116

AKX Designation fees paid

Designated state(s): DE FR GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60117346

Country of ref document: DE

Date of ref document: 20060427

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20061123

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070816

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070815

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070808

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080820

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090303

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080820