JPS6489896A - Speaker - Google Patents

Speaker

Info

Publication number
JPS6489896A
JPS6489896A JP24642787A JP24642787A JPS6489896A JP S6489896 A JPS6489896 A JP S6489896A JP 24642787 A JP24642787 A JP 24642787A JP 24642787 A JP24642787 A JP 24642787A JP S6489896 A JPS6489896 A JP S6489896A
Authority
JP
Japan
Prior art keywords
magnet
magnetic force
coil
superconductive
electro
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
JP24642787A
Other languages
Japanese (ja)
Inventor
Hiromoto Furukawa
Hiroyuki Naono
Satoru Ibaraki
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 JP24642787A priority Critical patent/JPS6489896A/en
Publication of JPS6489896A publication Critical patent/JPS6489896A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To make input-proof high without forming a coil in a narrow space by using a superconductive magnet fitted to a diaphragm and an electro-magnet generation magnetic force according to an inputted electric signal. CONSTITUTION:The superconductive coils 101a and 101b are winded to the superconductive magnets 10a and 10b, the magnetic force line occures in a direction A B and the polarity is also the same direction. The ordinary conductive coil 121 is winded to the electro-magnet 12 and the magnetic force line occures the direction A B. Thus, by the attracting force and the resiliency of the superconductive magnet and the electro-magnet generating the magnetic force according to the inputted electric signal, the diaphragm can be swung. A speaker of which input-proof is high can be made without forming the coil in the narrow space and without the occurence of coil cut caused by heat build-up.
JP24642787A 1987-09-30 1987-09-30 Speaker Pending JPS6489896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24642787A JPS6489896A (en) 1987-09-30 1987-09-30 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24642787A JPS6489896A (en) 1987-09-30 1987-09-30 Speaker

Publications (1)

Publication Number Publication Date
JPS6489896A true JPS6489896A (en) 1989-04-05

Family

ID=17148319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24642787A Pending JPS6489896A (en) 1987-09-30 1987-09-30 Speaker

Country Status (1)

Country Link
JP (1) JPS6489896A (en)

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