JPS5518182A - Speaker - Google Patents

Speaker

Info

Publication number
JPS5518182A
JPS5518182A JP9192278A JP9192278A JPS5518182A JP S5518182 A JPS5518182 A JP S5518182A JP 9192278 A JP9192278 A JP 9192278A JP 9192278 A JP9192278 A JP 9192278A JP S5518182 A JPS5518182 A JP S5518182A
Authority
JP
Japan
Prior art keywords
pole
magnetic
coil
magnet
coils
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
JP9192278A
Other languages
Japanese (ja)
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 JP9192278A priority Critical patent/JPS5518182A/en
Publication of JPS5518182A publication Critical patent/JPS5518182A/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
    • H04R9/041—Centering

Abstract

PURPOSE:To decrease the effect of the magnetic flux caused by the current flowing to the coil and thus to obtain the output free from distortion by securing the space of the different polarities within the magnetic circuit, supporting the voice coil movably within the space and then supporting the magnetic circuit with the nonmagnetic material. CONSTITUTION:Ring-shaped permanent magnet 22 is installed as if it enclosed center pole 21 made of the magnetic material. Then 1st gap 24 is formed between pole 21 and ring-shaped plate 23 jointed to one pole of magnet 22, and 2nd gap 26 is formed between pole 21 and plate 25 connected to the other pole of magnet 22 each. Then 1st and 2nd voice coils 27 and 28 are supported within gaps 24 and 26 via coil bobbin 29, and bobbin 29 is supported movably by the damper. The magnetic flux of magnet 22 crossing coil 27 and 28 are turned opposite to each other, and thus the driving force of the same direction is given to coils 27 and 28. Such magnetic coil is supported by the nonmagnetic material, and magnetic fluxes 30 and 31 caused by the current of coils 27 and 28 are given the reverse phase to each other. Thus, the effect of the magnetic flux can be reduced.
JP9192278A 1978-07-26 1978-07-26 Speaker Pending JPS5518182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9192278A JPS5518182A (en) 1978-07-26 1978-07-26 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9192278A JPS5518182A (en) 1978-07-26 1978-07-26 Speaker

Publications (1)

Publication Number Publication Date
JPS5518182A true JPS5518182A (en) 1980-02-08

Family

ID=14040066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9192278A Pending JPS5518182A (en) 1978-07-26 1978-07-26 Speaker

Country Status (1)

Country Link
JP (1) JPS5518182A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57182991U (en) * 1981-05-18 1982-11-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57182991U (en) * 1981-05-18 1982-11-19

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