JPS5481827A - Production of moving coil device for electro-acoustic transducer - Google Patents

Production of moving coil device for electro-acoustic transducer

Info

Publication number
JPS5481827A
JPS5481827A JP12699978A JP12699978A JPS5481827A JP S5481827 A JPS5481827 A JP S5481827A JP 12699978 A JP12699978 A JP 12699978A JP 12699978 A JP12699978 A JP 12699978A JP S5481827 A JPS5481827 A JP S5481827A
Authority
JP
Japan
Prior art keywords
coil
base material
beryllium
insulation layer
moving 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
JP12699978A
Other languages
Japanese (ja)
Other versions
JPS5738078B2 (en
Inventor
Motoi Ieda
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP12699978A priority Critical patent/JPS5481827A/en
Publication of JPS5481827A publication Critical patent/JPS5481827A/en
Publication of JPS5738078B2 publication Critical patent/JPS5738078B2/ja
Granted 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
    • H04R9/046—Construction

Abstract

PURPOSE:To produce a moving coil device of light weight and large allowable input by winding a coil on a winding frame composed of beryllium, titanium or other formed by vacuum evaporation and held on the outside circumference of a base material then removing the abovementioned base material. CONSTITUTION:A winding frame 12 of about 40mu in thickness is formed by vacuum-evaporating pure beryllium on a base material 11 which is formed of a material of fast etching rate by acids, e.g., pure copper, and has been finished to a specified size, and further an insulation layer 13 by plastics, etc. of about several mu thickness is formed thereon. Following to this, a coil 14 is wound on the insulation layer 13 and acid-resistant wax 15 is deposited on the outside circumference thereof to protect the coil 14, after which the entire part is dipped in a strong acid like nitric acid to etch away the base material 11. Next, the wax 15 is dissolved away by a solvent or heat, whereby the moving coil in which the coil 14 has been wound to the beryllium winding frame 12 by way of the insulation layer 13 is obtained.
JP12699978A 1978-10-16 1978-10-16 Production of moving coil device for electro-acoustic transducer Granted JPS5481827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12699978A JPS5481827A (en) 1978-10-16 1978-10-16 Production of moving coil device for electro-acoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12699978A JPS5481827A (en) 1978-10-16 1978-10-16 Production of moving coil device for electro-acoustic transducer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP10030473A Division JPS533925B2 (en) 1973-06-07 1973-06-07

Publications (2)

Publication Number Publication Date
JPS5481827A true JPS5481827A (en) 1979-06-29
JPS5738078B2 JPS5738078B2 (en) 1982-08-13

Family

ID=14949156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12699978A Granted JPS5481827A (en) 1978-10-16 1978-10-16 Production of moving coil device for electro-acoustic transducer

Country Status (1)

Country Link
JP (1) JPS5481827A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0289301A (en) * 1988-09-27 1990-03-29 Matsushita Electric Ind Co Ltd Coil
JPH0289302A (en) * 1988-09-27 1990-03-29 Matsushita Electric Ind Co Ltd Coil
CN106092478A (en) * 2016-07-01 2016-11-09 苏州东菱振动试验仪器有限公司 The intensity enhancing method of a kind of movable coil winding and enhancing structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915789U (en) * 1982-07-20 1984-01-31 神鋼アルフレツシユ株式会社 Airtight fixing device for new window frame after removal of old window frame

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0289301A (en) * 1988-09-27 1990-03-29 Matsushita Electric Ind Co Ltd Coil
JPH0289302A (en) * 1988-09-27 1990-03-29 Matsushita Electric Ind Co Ltd Coil
CN106092478A (en) * 2016-07-01 2016-11-09 苏州东菱振动试验仪器有限公司 The intensity enhancing method of a kind of movable coil winding and enhancing structure
CN106092478B (en) * 2016-07-01 2018-09-14 苏州东菱振动试验仪器有限公司 A kind of intensity enhancing method and enhancing structure of movable coil winding

Also Published As

Publication number Publication date
JPS5738078B2 (en) 1982-08-13

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