JPS558115A - Manufacture of voice coil for speaker - Google Patents

Manufacture of voice coil for speaker

Info

Publication number
JPS558115A
JPS558115A JP8004478A JP8004478A JPS558115A JP S558115 A JPS558115 A JP S558115A JP 8004478 A JP8004478 A JP 8004478A JP 8004478 A JP8004478 A JP 8004478A JP S558115 A JPS558115 A JP S558115A
Authority
JP
Japan
Prior art keywords
coating
coil
weight part
resin
barrel
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
JP8004478A
Other languages
Japanese (ja)
Inventor
Norio Kutsukake
Seisaku Uehara
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.)
Totoku Electric Co Ltd
Original Assignee
Totoku Electric 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 Totoku Electric Co Ltd filed Critical Totoku Electric Co Ltd
Priority to JP8004478A priority Critical patent/JPS558115A/en
Publication of JPS558115A publication Critical patent/JPS558115A/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; ELECTRIC HEARING AIDS; 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Insulating Of Coils (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To increase the heat-resistance adhesive intensity especially between the coil and the barrel to which the load is applied without impairing the working efficiency by using the adesive coating of a specific composition for coating of the coil barrel and the electric wire. CONSTITUTION:Polyamide resin 100 weight part functioning as the initial adhesive, polyamide/polyimide prepolymer or polyamide prepolymer 30-80 weight part to be used as the heat-resistance giving component, epoxy resin 20-70 weight part plus the alkyl ether-amino triazine resin of 3-15 weight part added to the above resin components. These material resin are then dissolved into the mixture solvent of methacresol and xylene to obtain a coating. Such coating is coated on the surface of the coil barrel previously via the alcohol-group solvent in the reswelling and adhesion possible range with drying. On the other hand, this coating is coated and baked directly on the conductor or the insulated conductor also in the reswelling and adhesion possible range to obtain the self-fused insulated electric wire. Such electric wire is then wound into one body with coating of the alcohol-group solvent applied simultaneously and then heated to be hardened. In this way, the 3-dimensional net- like structure is secured between the electric wires as well as between the coil and coil barrel, thus obtaining the insoluble substance.
JP8004478A 1978-06-30 1978-06-30 Manufacture of voice coil for speaker Pending JPS558115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8004478A JPS558115A (en) 1978-06-30 1978-06-30 Manufacture of voice coil for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8004478A JPS558115A (en) 1978-06-30 1978-06-30 Manufacture of voice coil for speaker

Publications (1)

Publication Number Publication Date
JPS558115A true JPS558115A (en) 1980-01-21

Family

ID=13707233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8004478A Pending JPS558115A (en) 1978-06-30 1978-06-30 Manufacture of voice coil for speaker

Country Status (1)

Country Link
JP (1) JPS558115A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5710682A (en) * 1980-06-06 1982-01-20 Yamagata Daigaku Coal direct liquefaction process and equipment therefor
US4383911A (en) * 1978-02-08 1983-05-17 Yamagata University Process for direct liquefaction of coal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383911A (en) * 1978-02-08 1983-05-17 Yamagata University Process for direct liquefaction of coal
JPS5710682A (en) * 1980-06-06 1982-01-20 Yamagata Daigaku Coal direct liquefaction process and equipment therefor

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