ES416111A1 - Movable magnet loudspeaker - Google Patents

Movable magnet loudspeaker

Info

Publication number
ES416111A1
ES416111A1 ES416111A ES416111A ES416111A1 ES 416111 A1 ES416111 A1 ES 416111A1 ES 416111 A ES416111 A ES 416111A ES 416111 A ES416111 A ES 416111A ES 416111 A1 ES416111 A1 ES 416111A1
Authority
ES
Spain
Prior art keywords
movable magnet
respect
loudspeaker
permanent magnet
electrical coil
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
Application number
ES416111A
Other languages
Spanish (es)
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of ES416111A1 publication Critical patent/ES416111A1/en
Expired 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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A transducer device such as a loudspeaker or microphone has the electrical coil stationary with respect to the acoustic diaphragm. The diaphragm is actuated by a movable permanent magnet which interacts with the field of the stationary electrical coil. The preferred permanent magnet is one having a high torque-to-weight ratio with respect to an external field. The cobalt-rare earth magnets are examples of such permanent magnets.
ES416111A 1972-06-22 1973-06-20 Movable magnet loudspeaker Expired ES416111A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26525072A 1972-06-22 1972-06-22

Publications (1)

Publication Number Publication Date
ES416111A1 true ES416111A1 (en) 1976-06-16

Family

ID=23009664

Family Applications (1)

Application Number Title Priority Date Filing Date
ES416111A Expired ES416111A1 (en) 1972-06-22 1973-06-20 Movable magnet loudspeaker

Country Status (16)

Country Link
US (1) US3798391A (en)
JP (2) JPS5013027A (en)
KR (1) KR780000424B1 (en)
BE (1) BE801293A (en)
CA (1) CA963571A (en)
CH (1) CH559993A5 (en)
DE (1) DE2326960C3 (en)
ES (1) ES416111A1 (en)
FR (1) FR2202420B1 (en)
GB (1) GB1426391A (en)
HK (1) HK49477A (en)
IE (1) IE37725B1 (en)
IT (1) IT989118B (en)
NL (1) NL7308542A (en)
SE (1) SE388103B (en)
SU (1) SU583783A3 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507704C3 (en) * 1975-02-22 1980-07-24 Dr. Kuhn & Co Gmbh, 5000 Koeln Speech aid device for larynx surgery
JPS5723994Y2 (en) * 1976-12-03 1982-05-24
DE2810459C3 (en) * 1977-03-14 1986-11-13 Sergej Valentinovič Čeljabinsk Burundukov Electrodynamic converter of mechanical vibrations into electrical signals and vice versa, stereo and monophonic sound heads and electrodynamic microphone
JPS5664514A (en) * 1979-10-29 1981-06-01 Dx Antenna Co Ltd Filter
US4385210A (en) * 1980-09-19 1983-05-24 Electro-Magnetic Corporation Electro-acoustic planar transducer
DE3208678A1 (en) * 1982-03-10 1983-09-22 Siemens AG, 1000 Berlin und 8000 München TALKING APPARATUS
FR2549335B1 (en) * 1983-07-13 1985-10-31 Corselli Laurent MAGNETICALLY MODULATED SPEAKER
JPH0761193B2 (en) * 1991-07-23 1995-06-28 ボディソニック株式会社 Electric / mechanical vibration converter
CN1685760B (en) * 2002-09-26 2011-04-13 精工爱普生株式会社 Drive mechanism
US8295537B2 (en) 2010-03-31 2012-10-23 Bose Corporation Loudspeaker moment and torque balancing
US8295536B2 (en) 2010-03-31 2012-10-23 Bose Corporation Moving magnet levered loudspeaker
CN103718567B (en) * 2011-07-21 2017-09-08 喜恩吉股份有限公司 Method from resonance type sounding loudspeaker is installed
US9055370B2 (en) 2012-08-31 2015-06-09 Bose Corporation Vibration-reducing passive radiators
JP5668233B1 (en) * 2014-03-26 2015-02-12 株式会社サウンドファン Universal speaker
TWI610576B (en) * 2016-08-15 2018-01-01 緯創資通股份有限公司 Loudspeaker
GB201619516D0 (en) * 2016-11-18 2017-01-04 Cooper Technologies Co Electroacoustic driver and related loudspeaker/sounder

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110153A (en) * 1934-10-19 1938-03-08 Philips Nv Magnetic system
US2492255A (en) * 1944-12-26 1949-12-27 John O Angehrn Sealed-coil type vibratory magnet loudspeaker
DE1037510B (en) * 1957-01-09 1958-08-28 Johann Distler K G Electromagnetic converter
US3076062A (en) * 1959-10-30 1963-01-29 Dyna Magnetic Devices Inc Hearing-aid sound transducer
US3501358A (en) * 1967-08-30 1970-03-17 Gen Electric Method of making permanent magnet material powders having superior magnetic characteristics
DE1762107A1 (en) * 1968-04-08 1970-04-30 Lothar Kuhnert Circular speaker
US3651283A (en) * 1968-12-18 1972-03-21 Audio Arts Inc Loudspeaker having elongated rectangular moving coil
US3625779A (en) * 1969-08-21 1971-12-07 Gen Electric Reduction-fusion process for the production of rare earth intermetallic compounds
US3655463A (en) * 1970-04-30 1972-04-11 Gen Electric Sintered cobalt-rare earth intermetallic process using solid sintering additive
US3655464A (en) * 1970-04-30 1972-04-11 Gen Electric Process of preparing a liquid sintered cobalt-rare earth intermetallic product
US3682715A (en) * 1970-08-24 1972-08-08 Gen Electric Sintered cobalt-rare earth intermetallic product including samarium and lanthanum and permanent magnets produced therefrom

Also Published As

Publication number Publication date
JPS5690099U (en) 1981-07-18
SE388103B (en) 1976-09-20
DE2326960A1 (en) 1974-01-10
NL7308542A (en) 1973-12-27
IT989118B (en) 1975-05-20
DE2326960B2 (en) 1980-10-02
FR2202420A1 (en) 1974-05-03
HK49477A (en) 1977-09-30
CA963571A (en) 1975-02-25
KR780000424B1 (en) 1978-10-10
GB1426391A (en) 1976-02-25
DE2326960C3 (en) 1981-05-14
SU583783A3 (en) 1977-12-05
CH559993A5 (en) 1975-06-13
BE801293A (en) 1973-10-15
IE37725L (en) 1973-12-22
JPS5013027A (en) 1975-02-10
IE37725B1 (en) 1977-09-28
FR2202420B1 (en) 1980-04-18
US3798391A (en) 1974-03-19
JPS6019436Y2 (en) 1985-06-11

Similar Documents

Publication Publication Date Title
ES416111A1 (en) Movable magnet loudspeaker
GB1380928A (en) Electromagnetic transducer
GB1348745A (en) Electroacoustic transducers
GB1067273A (en) Electroacoustic transducers
GB1371481A (en) Electrically-operated swing
ES445397A1 (en) Speech aid apparatus for laryngectomees
GB1357403A (en) Electroacoustic transducer
GB677225A (en) Improvements in or relating to electro-acoustic transducers
GB672465A (en) Permanent magnet structure for a loudspeaker
GB806305A (en) Improvements in transducing devices
GB672467A (en) Improvements in and relating to sound reproducing devices
GB1022850A (en) Electro-acoustic transducer
GB803283A (en) Improvements in or relating to electroacoustic transducers
JPS5229722A (en) Non-directivity speaker
GB791295A (en) Improvements in or relating to electro-magnetic telephones
GB643518A (en) Improvements in or relating to transducers
GB867032A (en) Improvements in and relating to electro-acoustic transducers
GB259298A (en) Improvements in loud speakers
GB677226A (en) Improvements in or relating to electro-acoustic transducers
GB943968A (en) Improvements in or relating to moving coil loudspeakers and like transducers
GB581739A (en) Improvements in or relating to subaqueous sound receivers
ES416186A1 (en) Electro acoustic transducer
CA497231A (en) Permanent magnet assembly for electrodynamic loudspeaker
GB944811A (en) Improvements in or relating to electro-acoustic transducers
GB674875A (en) Improvements in permanent magnet assemblies for moving coil loudspeakers, microphones and other instruments