JPS553207A - Double-cap type speaker - Google Patents

Double-cap type speaker

Info

Publication number
JPS553207A
JPS553207A JP7484878A JP7484878A JPS553207A JP S553207 A JPS553207 A JP S553207A JP 7484878 A JP7484878 A JP 7484878A JP 7484878 A JP7484878 A JP 7484878A JP S553207 A JPS553207 A JP S553207A
Authority
JP
Japan
Prior art keywords
gap
coil
poles
type speaker
double
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
JP7484878A
Other languages
Japanese (ja)
Inventor
Tokuo Tsujimoto
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 JP7484878A priority Critical patent/JPS553207A/en
Publication of JPS553207A publication Critical patent/JPS553207A/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; ELECTRIC HEARING AIDS; 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 obtain a low-distortion speaker featuring the reduced size of the magnetic circuit and excellent linearity to the input signals by dividing the gap formed by the central and circular magnetic poles into two parts and then installing the voice coil between the two parts of the gap. CONSTITUTION:The concavities are provided to central and circular magnetic poles 1 and 2 at the opposing position of the center part, and voice coil 3 is installed between poles 1 and 2. Magnet 4, cone 5, dust cover 6, damper 7, frame 8 and others are formed as conventional. When the turn width of coil 3 and the heights of the poles forming the gap are referred as to lW and TPW respectively, the amplitude XW with which coil 3 can obtain the liner driving force features as XW= lW- TPW/2. As a result, this double-gap type speaker features better characteristics than the conventional long- or short-voice type speaker.
JP7484878A 1978-06-22 1978-06-22 Double-cap type speaker Pending JPS553207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7484878A JPS553207A (en) 1978-06-22 1978-06-22 Double-cap type speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7484878A JPS553207A (en) 1978-06-22 1978-06-22 Double-cap type speaker

Publications (1)

Publication Number Publication Date
JPS553207A true JPS553207A (en) 1980-01-11

Family

ID=13559138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7484878A Pending JPS553207A (en) 1978-06-22 1978-06-22 Double-cap type speaker

Country Status (1)

Country Link
JP (1) JPS553207A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583695U (en) * 1981-06-29 1983-01-11 パイオニア株式会社 electrodynamic speaker
US4661973A (en) * 1983-12-03 1987-04-28 Pioneer Electronic Corporation Minimization of distortion due to a voice coil displacement in a speaker unit
JPH0165592U (en) * 1987-10-20 1989-04-26
JPH11262089A (en) * 1998-03-11 1999-09-24 Sony Corp Speaker device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583695U (en) * 1981-06-29 1983-01-11 パイオニア株式会社 electrodynamic speaker
US4661973A (en) * 1983-12-03 1987-04-28 Pioneer Electronic Corporation Minimization of distortion due to a voice coil displacement in a speaker unit
JPH0165592U (en) * 1987-10-20 1989-04-26
JPH11262089A (en) * 1998-03-11 1999-09-24 Sony Corp Speaker device

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