JPS5537071A - Speaker - Google Patents

Speaker

Info

Publication number
JPS5537071A
JPS5537071A JP11041578A JP11041578A JPS5537071A JP S5537071 A JPS5537071 A JP S5537071A JP 11041578 A JP11041578 A JP 11041578A JP 11041578 A JP11041578 A JP 11041578A JP S5537071 A JPS5537071 A JP S5537071A
Authority
JP
Japan
Prior art keywords
turning
coils
layer
bobbin
voice coil
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
JP11041578A
Other languages
Japanese (ja)
Other versions
JPS603276B2 (en
Inventor
Takafumi Ueno
Tatsuo Fukuyama
Kenichi Takahashi
Koshin Shimada
Yoshiaki Harada
Shinichiro Ishii
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 JP11041578A priority Critical patent/JPS603276B2/en
Publication of JPS5537071A publication Critical patent/JPS5537071A/en
Publication of JPS603276B2 publication Critical patent/JPS603276B2/en
Expired 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 decrease the effect due to the leaked magnetic flux and thus to reduce the distortion for the sound pressure delivered by giving the minimum loop coiled to the two units of voice coils which are wound round the same voice coil bobbin. CONSTITUTION:The clockwise turning is given to the 1st layer of 1st voice coil 6 starting at the upper turning start end A of voice coil bobbin 5, and turning finish end B is extended toward the axis direction and along bobbin 5. Then the turning is given to 2nd layer 7a of 2nd voice coil 7, and its turning finish end C is extended toward the axis direction of bobbin 5 and along end B of the 1st layer of coil 6. And furthermore the clockwise turning is given to 2nd layer 6b above coil 6a. In such way, both 1st and 2nd coils 6 and 7 are formed with a piece of winding, thus causing the driving force of coils 6 and 7 in the same way. Then turning start end A and finish end D of coils 6 and 7 are led out from one area to secure the minimum distance between the connecting areas B and C. And accordingly the minimum loop is obtained for the structure formed by the lead wire, thus eliminating the effect to the output due to the leaked magnetic flux as well as reducing the distortion of the output sound pressure.
JP11041578A 1978-09-07 1978-09-07 speaker Expired JPS603276B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11041578A JPS603276B2 (en) 1978-09-07 1978-09-07 speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11041578A JPS603276B2 (en) 1978-09-07 1978-09-07 speaker

Publications (2)

Publication Number Publication Date
JPS5537071A true JPS5537071A (en) 1980-03-14
JPS603276B2 JPS603276B2 (en) 1985-01-26

Family

ID=14535190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11041578A Expired JPS603276B2 (en) 1978-09-07 1978-09-07 speaker

Country Status (1)

Country Link
JP (1) JPS603276B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584438A (en) * 1980-07-07 1986-04-22 Erl Koenig Percussion air motor
US5937076A (en) * 1995-04-06 1999-08-10 Alpine Electronics, Inc. Magnetic drive apparatus and method for manufacturing coil that forms the apparatus
US6158109A (en) * 1996-03-20 2000-12-12 Alpine Electronics, Inc. Coil manufacturing method using ring shaped spacer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584438A (en) * 1980-07-07 1986-04-22 Erl Koenig Percussion air motor
US5937076A (en) * 1995-04-06 1999-08-10 Alpine Electronics, Inc. Magnetic drive apparatus and method for manufacturing coil that forms the apparatus
US6158109A (en) * 1996-03-20 2000-12-12 Alpine Electronics, Inc. Coil manufacturing method using ring shaped spacer

Also Published As

Publication number Publication date
JPS603276B2 (en) 1985-01-26

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