JPS5768997A - Dynamic type speaker - Google Patents

Dynamic type speaker

Info

Publication number
JPS5768997A
JPS5768997A JP14481980A JP14481980A JPS5768997A JP S5768997 A JPS5768997 A JP S5768997A JP 14481980 A JP14481980 A JP 14481980A JP 14481980 A JP14481980 A JP 14481980A JP S5768997 A JPS5768997 A JP S5768997A
Authority
JP
Japan
Prior art keywords
square
magnetic flux
speaker
horizontally
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
JP14481980A
Other languages
Japanese (ja)
Inventor
Osamu Ide
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14481980A priority Critical patent/JPS5768997A/en
Publication of JPS5768997A publication Critical patent/JPS5768997A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

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 make small-sized and thin the dynamic speaker, by reducing the leakage of magnetic flux toward upper direction in comparison with the use of a cylindrical type magnet, through the use of a plurality of square magnets horizontally. CONSTITUTION:A square coil bobbin 2 winding a square moving coil 3 is contacted at the center of a diaphragm plate 1, and the bobbin 2 is inserted to a magnetic gap consisting of a square magnet 6 and a yoke 5. Further, four pieces are located in parallel with four sides of the moving coil 3 for a vertical side to the magnetic flux of the magnet 6 magnetized horizontally. In this case, the direction of the magnetic flux of the four square magnets 6 is radially located from the center of the speaker to fix the diaphragm plate 1 and the yoke 5 to a speaker frame 4. The leakage of magnetic flux upward can be reduced by using a plurality of square magnets 6 horizontally, allowing to increase the efficiency of the speaker and to make small and thin the size.
JP14481980A 1980-10-16 1980-10-16 Dynamic type speaker Pending JPS5768997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14481980A JPS5768997A (en) 1980-10-16 1980-10-16 Dynamic type speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14481980A JPS5768997A (en) 1980-10-16 1980-10-16 Dynamic type speaker

Publications (1)

Publication Number Publication Date
JPS5768997A true JPS5768997A (en) 1982-04-27

Family

ID=15371186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14481980A Pending JPS5768997A (en) 1980-10-16 1980-10-16 Dynamic type speaker

Country Status (1)

Country Link
JP (1) JPS5768997A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616751A1 (en) * 1991-08-05 1994-09-28 Aura Systems, Inc. Voice coil actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616751A1 (en) * 1991-08-05 1994-09-28 Aura Systems, Inc. Voice coil actuator
EP0616751A4 (en) * 1991-08-05 1995-05-17 Aura Systems Inc Voice coil actuator.

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