JPS5564500A - Speaker - Google Patents

Speaker

Info

Publication number
JPS5564500A
JPS5564500A JP13861778A JP13861778A JPS5564500A JP S5564500 A JPS5564500 A JP S5564500A JP 13861778 A JP13861778 A JP 13861778A JP 13861778 A JP13861778 A JP 13861778A JP S5564500 A JPS5564500 A JP S5564500A
Authority
JP
Japan
Prior art keywords
circumference
fitted
magnetic circuit
internal
external
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
JP13861778A
Other languages
Japanese (ja)
Other versions
JPS5738079B2 (en
Inventor
Shuji Saeki
Original Assignee
Matsushita Electric Ind 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 Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP13861778A priority Critical patent/JPS5738079B2/ja
Publication of JPS5564500A publication Critical patent/JPS5564500A/en
Publication of JPS5738079B2 publication Critical patent/JPS5738079B2/ja
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit

Abstract

PURPOSE:To obtain a thin speaker with an internal magnetism type magnetic circuit. CONSTITUTION:At the cylindrical part of plate-shaped yoke 10, several slits 11 are formed, inside of which magnet 12 is fixed, and discoid center pole 13 is fixed on the magnet to constitute an internal magnetism type magnetic circuit. This magnetic circuit is fitted on the bottom surface of plate-shaped frame 14 and ring- shape voice coil 15 is arranged in a magnetic gap; and several support pieces 16 are radially arranged at the circumference of the coil and those are inserted into slits 11 of yoke 10 while their external circumferences are fitted to the internal circumference of damper 17. The external circumference of damper 17 and the edge part of diaphragm 18 are fitted to frame 14. The internal circumference of diaphragm 18 is fitted to the external circumference of support piece 16. In this constitution, the amplitude margin at the time of a large input can be limited to the height of the magnetic circuit, and consequently the speaker can be thinned correspondingly.
JP13861778A 1978-11-09 1978-11-09 Expired JPS5738079B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13861778A JPS5738079B2 (en) 1978-11-09 1978-11-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13861778A JPS5738079B2 (en) 1978-11-09 1978-11-09

Publications (2)

Publication Number Publication Date
JPS5564500A true JPS5564500A (en) 1980-05-15
JPS5738079B2 JPS5738079B2 (en) 1982-08-13

Family

ID=15226259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13861778A Expired JPS5738079B2 (en) 1978-11-09 1978-11-09

Country Status (1)

Country Link
JP (1) JPS5738079B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137320A2 (en) * 2000-03-23 2001-09-26 Matsushita Electric Industrial Co., Ltd. Loudspeaker
JP2002209296A (en) * 2001-01-11 2002-07-26 Matsushita Electric Ind Co Ltd Loud speaker
US6842529B2 (en) 2000-09-04 2005-01-11 Matsushita Electric Industrial Co., Ltd. Speaker
JP2011120154A (en) * 2009-12-07 2011-06-16 Alpine Electronics Inc Speaker device
JP2013005172A (en) * 2011-06-15 2013-01-07 Alpine Electronics Inc Speaker

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168479U (en) * 1983-04-26 1984-11-10
JPS61117881U (en) * 1985-01-08 1986-07-25
JPH0716875Y2 (en) * 1985-02-15 1995-04-19 ミサワホ−ム株式会社 Bay window seal structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137320A2 (en) * 2000-03-23 2001-09-26 Matsushita Electric Industrial Co., Ltd. Loudspeaker
EP1137320A3 (en) * 2000-03-23 2003-01-02 Matsushita Electric Industrial Co., Ltd. Loudspeaker
US6836551B2 (en) 2000-03-23 2004-12-28 Matsushita Electric Industrial Co., Ltd. Loudspeaker
US6842529B2 (en) 2000-09-04 2005-01-11 Matsushita Electric Industrial Co., Ltd. Speaker
JP2002209296A (en) * 2001-01-11 2002-07-26 Matsushita Electric Ind Co Ltd Loud speaker
JP2011120154A (en) * 2009-12-07 2011-06-16 Alpine Electronics Inc Speaker device
JP2013005172A (en) * 2011-06-15 2013-01-07 Alpine Electronics Inc Speaker

Also Published As

Publication number Publication date
JPS5738079B2 (en) 1982-08-13

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