FR2450020A1 - Loudspeaker with several electrodynamic driving units - which fit over membrane to apply uniform force to latter - Google Patents

Loudspeaker with several electrodynamic driving units - which fit over membrane to apply uniform force to latter

Info

Publication number
FR2450020A1
FR2450020A1 FR7904211A FR7904211A FR2450020A1 FR 2450020 A1 FR2450020 A1 FR 2450020A1 FR 7904211 A FR7904211 A FR 7904211A FR 7904211 A FR7904211 A FR 7904211A FR 2450020 A1 FR2450020 A1 FR 2450020A1
Authority
FR
France
Prior art keywords
conductor
diaphragm
uniform force
loudspeaker
fit over
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Withdrawn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
FR7904211A
Other languages
French (fr)
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.)
SORIA JEAN YVES
Original Assignee
SORIA JEAN YVES
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 SORIA JEAN YVES filed Critical SORIA JEAN YVES
Priority to FR7904211A priority Critical patent/FR2450020A1/en
Publication of FR2450020A1 publication Critical patent/FR2450020A1/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Withdrawn legal-status Critical Current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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane

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)

Abstract

A hi-fidelity loudspeaker comprises a honeycomb structure (1) covered on one side by a diaphragm (2) in the form of a thin metal or synthetic or paper sheet. The honeycomb structure is suspended at its outer edges from a rigid housing (5) with a respective magnet (4) supported on the housing in each cell of the structure. Each magnet is spaced from the structure by a suitable air gap. The structure itself may be of metal or have a current conductor (3) formed on the cell edges on the structure side opposite the diaphragm. The conductor may be compressed carbon or a polymer conductor or metal film and is connected through wires (7) to the current supply. When excitation current is applied to the conductor, the structure and thus the diaphragm is displaced accordingly. A uniform force is exerted on the diaphragm, the reactive impedance of the conductor is negligible and thermal dissipation through the structure is enhanced.
FR7904211A 1979-02-20 1979-02-20 Loudspeaker with several electrodynamic driving units - which fit over membrane to apply uniform force to latter Withdrawn FR2450020A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904211A FR2450020A1 (en) 1979-02-20 1979-02-20 Loudspeaker with several electrodynamic driving units - which fit over membrane to apply uniform force to latter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904211A FR2450020A1 (en) 1979-02-20 1979-02-20 Loudspeaker with several electrodynamic driving units - which fit over membrane to apply uniform force to latter

Publications (1)

Publication Number Publication Date
FR2450020A1 true FR2450020A1 (en) 1980-09-19

Family

ID=9222169

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904211A Withdrawn FR2450020A1 (en) 1979-02-20 1979-02-20 Loudspeaker with several electrodynamic driving units - which fit over membrane to apply uniform force to latter

Country Status (1)

Country Link
FR (1) FR2450020A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113732A1 (en) * 1982-07-19 1984-07-25 CLARKE, Anthony Bernard Electromagnetic-acoustic transducer
US5701359A (en) * 1995-04-06 1997-12-23 Precision Power Flat-panel speaker
US6097829A (en) * 1995-04-06 2000-08-01 Precision Power, Inc. Fiber-honeycomb-fiber sandwich speaker diaphragm and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE737117C (en) * 1938-07-31 1943-07-07 Lorenz C Ag Dynamic speaker
FR1269138A (en) * 1960-06-23 1961-08-11 Improvements to loudspeakers, microphones, and similar electrodynamic devices
US3027541A (en) * 1951-08-11 1962-03-27 Harris Transducer Corp Structure for use in an electrodynamic transducer
DE1934206A1 (en) * 1969-07-05 1971-01-14 Oskar Knecht Speaker system
FR2241942A1 (en) * 1973-08-24 1975-03-21 Tretiakoff Oleg

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE737117C (en) * 1938-07-31 1943-07-07 Lorenz C Ag Dynamic speaker
US3027541A (en) * 1951-08-11 1962-03-27 Harris Transducer Corp Structure for use in an electrodynamic transducer
FR1269138A (en) * 1960-06-23 1961-08-11 Improvements to loudspeakers, microphones, and similar electrodynamic devices
DE1934206A1 (en) * 1969-07-05 1971-01-14 Oskar Knecht Speaker system
FR2241942A1 (en) * 1973-08-24 1975-03-21 Tretiakoff Oleg

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113732A1 (en) * 1982-07-19 1984-07-25 CLARKE, Anthony Bernard Electromagnetic-acoustic transducer
EP0113732A4 (en) * 1982-07-19 1986-02-13 Anthony Bernard Clarke Electromagnetic-acoustic transducer.
US5701359A (en) * 1995-04-06 1997-12-23 Precision Power Flat-panel speaker
US6097829A (en) * 1995-04-06 2000-08-01 Precision Power, Inc. Fiber-honeycomb-fiber sandwich speaker diaphragm and method

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse