JPS567593A - Magnetic circuit for flat diaphragm speaker - Google Patents

Magnetic circuit for flat diaphragm speaker

Info

Publication number
JPS567593A
JPS567593A JP8295779A JP8295779A JPS567593A JP S567593 A JPS567593 A JP S567593A JP 8295779 A JP8295779 A JP 8295779A JP 8295779 A JP8295779 A JP 8295779A JP S567593 A JPS567593 A JP S567593A
Authority
JP
Japan
Prior art keywords
magnetic circuit
plates
flat diaphragm
diaphragm speaker
yoke
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
JP8295779A
Other languages
Japanese (ja)
Other versions
JPS6028199B2 (en
Inventor
Itsuo Tsuchiya
Kunihiko Shimada
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP8295779A priority Critical patent/JPS6028199B2/en
Priority to DE3024732A priority patent/DE3024732C2/en
Priority to GB8021350A priority patent/GB2055013B/en
Priority to US06/164,128 priority patent/US4334127A/en
Publication of JPS567593A publication Critical patent/JPS567593A/en
Publication of JPS6028199B2 publication Critical patent/JPS6028199B2/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
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Abstract

PURPOSE:To form the magnetic circuit less in the leakage of magnetic flux, by fixing the magnets having different polarities in the inner surface of the plates facing to each other and coupling the plates with the yoke. CONSTITUTION:At each side of the diaphragm 1, the voice coil bobbin 2 and voice coil 3 are fixed. The plates 41 are located opposingly in the magnetic circuit 4 and the magnets 42 having different polarities are located inside. Further, the plates 41 are coupled with the yoke 43. Since the leaked magnetic flux is less with this constitution, the efficiency is increased.
JP8295779A 1979-06-30 1979-06-30 Magnetic circuit for planar diaphragm speakers Expired JPS6028199B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8295779A JPS6028199B2 (en) 1979-06-30 1979-06-30 Magnetic circuit for planar diaphragm speakers
DE3024732A DE3024732C2 (en) 1979-06-30 1980-06-30 Magnetic circuit designed for a loudspeaker with a polygonal flat membrane
GB8021350A GB2055013B (en) 1979-06-30 1980-06-30 Magnetic circuits for a loudspeaker having a planar diaphragm
US06/164,128 US4334127A (en) 1979-06-30 1980-06-30 Magnetic circuit for planar diaphragm type loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8295779A JPS6028199B2 (en) 1979-06-30 1979-06-30 Magnetic circuit for planar diaphragm speakers

Publications (2)

Publication Number Publication Date
JPS567593A true JPS567593A (en) 1981-01-26
JPS6028199B2 JPS6028199B2 (en) 1985-07-03

Family

ID=13788695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8295779A Expired JPS6028199B2 (en) 1979-06-30 1979-06-30 Magnetic circuit for planar diaphragm speakers

Country Status (1)

Country Link
JP (1) JPS6028199B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126916A (en) * 1983-12-13 1985-07-06 Matsushita Electric Ind Co Ltd Positive and negative pulse generating circuit of electric detector
JPS63168559A (en) * 1987-01-05 1988-07-12 Kiyoshi Nagata Directly reading type soil conductivity measuring apparatus
WO2003010997A1 (en) * 2001-07-23 2003-02-06 Foster Electric Co., Ltd. Flat speaker of full-face driving

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6436490U (en) * 1987-08-26 1989-03-06

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126916A (en) * 1983-12-13 1985-07-06 Matsushita Electric Ind Co Ltd Positive and negative pulse generating circuit of electric detector
JPS63168559A (en) * 1987-01-05 1988-07-12 Kiyoshi Nagata Directly reading type soil conductivity measuring apparatus
WO2003010997A1 (en) * 2001-07-23 2003-02-06 Foster Electric Co., Ltd. Flat speaker of full-face driving
US7181041B2 (en) 2001-07-23 2007-02-20 Foster Electric Co., Ltd. Flat speaker of full-face driving

Also Published As

Publication number Publication date
JPS6028199B2 (en) 1985-07-03

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