JPS5477127A - Acoustic converter - Google Patents

Acoustic converter

Info

Publication number
JPS5477127A
JPS5477127A JP14485577A JP14485577A JPS5477127A JP S5477127 A JPS5477127 A JP S5477127A JP 14485577 A JP14485577 A JP 14485577A JP 14485577 A JP14485577 A JP 14485577A JP S5477127 A JPS5477127 A JP S5477127A
Authority
JP
Japan
Prior art keywords
voice coil
damper
friction
axis
similar results
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
JP14485577A
Other languages
Japanese (ja)
Inventor
Shinichiro Ishii
Tatsuo Fukuyama
Kenichi Takahashi
Takafumi Ueno
Koshin Shimada
Yoshiaki Harada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14485577A priority Critical patent/JPS5477127A/en
Publication of JPS5477127A publication Critical patent/JPS5477127A/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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

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 improve the linearity of acoustic characteristics by proventing the axis of a vibrating system such as a voice coil from being inclined by the contact with the surface having a low coefficient of friction. CONSTITUTION:A voice coil 4 is equipped with coating films 8 to 10, of which the films 8 and 9 are in surface contact with a center pole 1 and a plate 2 in a low coefficient of friction. The coil 4 is held by the center pole 1, the plate 2 and a conical diaphragm 3 at its edge such that no inclination takes place in the axis of the vibrating system. As a result, a damper 5 is dispensed with to prevent the nonlinear strain due to the damper 5 so that the acoustic characteristics can be improved. Incidentally, similar results can be obtained in the case of the dome- shaped acoustic converter. Moreover, similar results can also be obtained if the voice coil is not coated but magnetized.
JP14485577A 1977-12-01 1977-12-01 Acoustic converter Pending JPS5477127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14485577A JPS5477127A (en) 1977-12-01 1977-12-01 Acoustic converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14485577A JPS5477127A (en) 1977-12-01 1977-12-01 Acoustic converter

Publications (1)

Publication Number Publication Date
JPS5477127A true JPS5477127A (en) 1979-06-20

Family

ID=15371970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14485577A Pending JPS5477127A (en) 1977-12-01 1977-12-01 Acoustic converter

Country Status (1)

Country Link
JP (1) JPS5477127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6359489U (en) * 1986-10-03 1988-04-20
JP2019068144A (en) * 2017-09-28 2019-04-25 パナソニック株式会社 Electro-acoustic transducer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6359489U (en) * 1986-10-03 1988-04-20
JP2019068144A (en) * 2017-09-28 2019-04-25 パナソニック株式会社 Electro-acoustic transducer
US11178493B2 (en) 2017-09-28 2021-11-16 Panasonic Corporation Electroacoustic transducer

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