EP0873039A3 - Speaker - Google Patents

Speaker Download PDF

Info

Publication number
EP0873039A3
EP0873039A3 EP98400928A EP98400928A EP0873039A3 EP 0873039 A3 EP0873039 A3 EP 0873039A3 EP 98400928 A EP98400928 A EP 98400928A EP 98400928 A EP98400928 A EP 98400928A EP 0873039 A3 EP0873039 A3 EP 0873039A3
Authority
EP
European Patent Office
Prior art keywords
main body
speaker
ringed
dampers
tight
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.)
Withdrawn
Application number
EP98400928A
Other languages
German (de)
French (fr)
Other versions
EP0873039A2 (en
Inventor
Takeshi Nakamura
Yoshiaki Heinouchi
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 JP11105897A external-priority patent/JP3230459B2/en
Priority claimed from JP04563498A external-priority patent/JP3470582B2/en
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of EP0873039A2 publication Critical patent/EP0873039A2/en
Publication of EP0873039A3 publication Critical patent/EP0873039A3/en
Withdrawn legal-status Critical Current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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

There is provided a speaker which is small and which allows the low sound range to be generated and a low sound level to be fully obtained. A speaker 10 comprises a cylindrical main body 12. Both ends of the main body 12 constitute open sections thereof and a sounding body 16 pinched by ringed first dampers 14 is secured to each of the open sections so that the inside of the main body 12 is kept air-tight. A circular first opening 18 is created at the middle part of the side of the main body 12. Bottomed cylindrical lid members 20 are secured on the outside of the two sounding bodies 16 via ringed second dampers 24 so as to keep the inside of the lid member 20 air-tight. A circular second opening 22 is created around the middle of the bottom of the lid member 20.
EP98400928A 1997-04-15 1998-04-15 Speaker Withdrawn EP0873039A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP97665/97 1997-04-15
JP9766597 1997-04-15
JP11105897A JP3230459B2 (en) 1997-04-28 1997-04-28 Speaker
JP111058/97 1997-04-28
JP45634/98 1998-02-26
JP04563498A JP3470582B2 (en) 1997-04-15 1998-02-26 Speaker

Publications (2)

Publication Number Publication Date
EP0873039A2 EP0873039A2 (en) 1998-10-21
EP0873039A3 true EP0873039A3 (en) 2007-04-04

Family

ID=27292311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400928A Withdrawn EP0873039A3 (en) 1997-04-15 1998-04-15 Speaker

Country Status (2)

Country Link
EP (1) EP0873039A3 (en)
CN (1) CN1151699C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104094612B (en) * 2012-09-28 2017-04-26 京瓷株式会社 Acoustic generator, acoustic generation device, and electronic apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413198A (en) * 1981-12-30 1983-11-01 Motorola, Inc. Piezoelectric transducer apparatus
US5031222A (en) * 1988-07-22 1991-07-09 Murata Manufacturing Co., Ltd. Piezoelectric speaker
EP0812124A2 (en) * 1996-06-03 1997-12-10 Murata Manufacturing Co., Ltd. Piezoelectric speaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413198A (en) * 1981-12-30 1983-11-01 Motorola, Inc. Piezoelectric transducer apparatus
US5031222A (en) * 1988-07-22 1991-07-09 Murata Manufacturing Co., Ltd. Piezoelectric speaker
EP0812124A2 (en) * 1996-06-03 1997-12-10 Murata Manufacturing Co., Ltd. Piezoelectric speaker

Also Published As

Publication number Publication date
CN1214605A (en) 1999-04-21
CN1151699C (en) 2004-05-26
EP0873039A2 (en) 1998-10-21

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Legal Events

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