JPS5590200A - Squeeze film air speaker - Google Patents

Squeeze film air speaker

Info

Publication number
JPS5590200A
JPS5590200A JP16114478A JP16114478A JPS5590200A JP S5590200 A JPS5590200 A JP S5590200A JP 16114478 A JP16114478 A JP 16114478A JP 16114478 A JP16114478 A JP 16114478A JP S5590200 A JPS5590200 A JP S5590200A
Authority
JP
Japan
Prior art keywords
air
vibrating cylinder
squeeze film
speaker
bobbin
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.)
Granted
Application number
JP16114478A
Other languages
Japanese (ja)
Other versions
JPS5756280B2 (en
Inventor
Yoshiro Nakamatsu
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 JP16114478A priority Critical patent/JPS5590200A/en
Priority to US06/029,234 priority patent/US4259550A/en
Priority to EP79300618A priority patent/EP0005037B1/en
Priority to DE7979300618T priority patent/DE2966743D1/en
Publication of JPS5590200A publication Critical patent/JPS5590200A/en
Publication of JPS5756280B2 publication Critical patent/JPS5756280B2/ja
Granted 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
    • H04R9/041—Centering
    • H04R9/042—Centering by pressurised air

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 miniaturize an air speaker and also to improve sound quality by floating a vibration part by forming a squeeze film. CONSTITUTION:Around the external circumference of center pole 13 of the magnetic circuit composed of main yoke 10, magnet 11 and ring yoke 12, vibrating cylinder 9 made of ferrite, etc., is arranged and bobbin 8 wound with voice coil 6 is inserted between vibrating cylinder 9 and yoke 12. Applying a high-frequency voltage out of the audible range across the speaker formed in this way causes vibrating cylinder 9 to vibrate, and consequently air between the inner wall of bobbin 8 and the outer wall of vibrating cylinder 9 is suddenly compressed to form a squeeze film, so that bobbin 8 will float from the surface of vibrating cylinder 9, i.g. center pole 13 in the air by the air pressure of this squeeze film. In this way, a miniature air speaker of high quality can be obtained which reproduces an original sound with fidelity.
JP16114478A 1978-04-15 1978-12-28 Squeeze film air speaker Granted JPS5590200A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP16114478A JPS5590200A (en) 1978-12-28 1978-12-28 Squeeze film air speaker
US06/029,234 US4259550A (en) 1978-04-15 1979-04-11 Acoustic device with floating vibrating means
EP79300618A EP0005037B1 (en) 1978-04-15 1979-04-12 Acoustic speaker
DE7979300618T DE2966743D1 (en) 1978-04-15 1979-04-12 Acoustic speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16114478A JPS5590200A (en) 1978-12-28 1978-12-28 Squeeze film air speaker

Publications (2)

Publication Number Publication Date
JPS5590200A true JPS5590200A (en) 1980-07-08
JPS5756280B2 JPS5756280B2 (en) 1982-11-29

Family

ID=15729420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16114478A Granted JPS5590200A (en) 1978-04-15 1978-12-28 Squeeze film air speaker

Country Status (1)

Country Link
JP (1) JPS5590200A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100881505B1 (en) 2007-06-01 2009-02-05 옥은호 Pneumatic speaker system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62112385U (en) * 1986-08-20 1987-07-17

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036970A (en) * 1973-06-28 1975-04-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036970A (en) * 1973-06-28 1975-04-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100881505B1 (en) 2007-06-01 2009-02-05 옥은호 Pneumatic speaker system

Also Published As

Publication number Publication date
JPS5756280B2 (en) 1982-11-29

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