JPS5244627A - Magnet core type speaker - Google Patents

Magnet core type speaker

Info

Publication number
JPS5244627A
JPS5244627A JP12014175A JP12014175A JPS5244627A JP S5244627 A JPS5244627 A JP S5244627A JP 12014175 A JP12014175 A JP 12014175A JP 12014175 A JP12014175 A JP 12014175A JP S5244627 A JPS5244627 A JP S5244627A
Authority
JP
Japan
Prior art keywords
core type
magnet core
type speaker
alunico
magnet
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.)
Pending
Application number
JP12014175A
Other languages
Japanese (ja)
Inventor
Mitsuo Umetsu
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP12014175A priority Critical patent/JPS5244627A/en
Publication of JPS5244627A publication Critical patent/JPS5244627A/en
Pending 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To prevent demagnetization of alunico magnet due to the dynamic magnetic field from voice coil, by means of covering at least a part of alunico magnet periphery with the electroconductive material with ring shape.
JP12014175A 1975-10-04 1975-10-04 Magnet core type speaker Pending JPS5244627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12014175A JPS5244627A (en) 1975-10-04 1975-10-04 Magnet core type speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12014175A JPS5244627A (en) 1975-10-04 1975-10-04 Magnet core type speaker

Publications (1)

Publication Number Publication Date
JPS5244627A true JPS5244627A (en) 1977-04-07

Family

ID=14778970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12014175A Pending JPS5244627A (en) 1975-10-04 1975-10-04 Magnet core type speaker

Country Status (1)

Country Link
JP (1) JPS5244627A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568293A (en) * 1978-11-18 1980-05-22 Mitsuharu Sakakida Production of carcinostatic substance
US4628154A (en) * 1981-12-24 1986-12-09 Kort Eckehard K Annular gap magnet system, particularly for low frequency loudspeakers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568293A (en) * 1978-11-18 1980-05-22 Mitsuharu Sakakida Production of carcinostatic substance
JPS571230B2 (en) * 1978-11-18 1982-01-09
US4628154A (en) * 1981-12-24 1986-12-09 Kort Eckehard K Annular gap magnet system, particularly for low frequency loudspeakers

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