JPS5754500A - Small sized speaker - Google Patents

Small sized speaker

Info

Publication number
JPS5754500A
JPS5754500A JP13021780A JP13021780A JPS5754500A JP S5754500 A JPS5754500 A JP S5754500A JP 13021780 A JP13021780 A JP 13021780A JP 13021780 A JP13021780 A JP 13021780A JP S5754500 A JPS5754500 A JP S5754500A
Authority
JP
Japan
Prior art keywords
small sized
air gap
center
oscillation
pole
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
JP13021780A
Other languages
Japanese (ja)
Inventor
Masao Sakurai
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP13021780A priority Critical patent/JPS5754500A/en
Publication of JPS5754500A publication Critical patent/JPS5754500A/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
    • 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)

Abstract

PURPOSE:To form a small sized speaker operated in few mW, by improving the acoustic effect of a small sized vibration diaphragm, through the introduction of butterfly oscillation in place of piston oscillation. CONSTITUTION:A permanent magnet 3 is located at the center of a frame 2 of a small sized speaker 1, and a ring shape air gap 6 is formed between a cylindrical external pole 4 at the lower end and an internal plate pole 5 at the upper end, and a required DC magnetic flux is supplied in the air gap 6. A coil 7 is wound at the external circumference of the magnet 3, a vibration diaphragm 9 is located via a spacer 8 at the upper surface of the inner pole 5, and the entire assembly is cauked by passing through a rivet 11 to the center through-hole 10. This diaphragm 9 is made to a metallic thin plate having specific elasticity and a fixed circle 12 is formed by giving fins at the center, a drive circle 14 is formed at a location at the interior division of lever ratio between the external circumference and a free end 13, and a ring shaped armature 15 is fixed to it. The armature 15 is absorbed with a DC magnetic flux converted at an electromagnetic converter 19 in the air gap 6 to generate butterfly oscillation.
JP13021780A 1980-09-19 1980-09-19 Small sized speaker Pending JPS5754500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13021780A JPS5754500A (en) 1980-09-19 1980-09-19 Small sized speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13021780A JPS5754500A (en) 1980-09-19 1980-09-19 Small sized speaker

Publications (1)

Publication Number Publication Date
JPS5754500A true JPS5754500A (en) 1982-03-31

Family

ID=15028883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13021780A Pending JPS5754500A (en) 1980-09-19 1980-09-19 Small sized speaker

Country Status (1)

Country Link
JP (1) JPS5754500A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3041268A1 (en) * 2014-12-31 2016-07-06 Skullcandy, Inc. Audio driver assembly, headphone including such an audio driver assembly, and related methods

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3041268A1 (en) * 2014-12-31 2016-07-06 Skullcandy, Inc. Audio driver assembly, headphone including such an audio driver assembly, and related methods
CN105744414A (en) * 2014-12-31 2016-07-06 骷髅头有限公司 Audio driver assembly, headphone including such an audio driver assembly, and related methods
US9883290B2 (en) 2014-12-31 2018-01-30 Skullcandy, Inc. Audio driver assembly, headphone including such an audio driver assembly, and related methods
CN105744414B (en) * 2014-12-31 2019-06-14 骷髅头有限公司 Audio driven component, earphone and correlation technique including this audio driven component

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