Global Patent Index - EP 0687128 B1

EP 0687128 B1 2000-04-19 - Voice coil and method for production thereof

Title (en)

Voice coil and method for production thereof

Title (de)

Schwingspule und Verfahren zu ihrer Herstellung

Title (fr)

Bobine mobile et méthode pour sa fabrication

Publication

EP 0687128 B1 (DE)

Application

EP 95107541 A

Priority

DE 4419252 A

Abstract (en)

[origin: EP0687128A1] The moving coil assembly of a loudspeaker unit is produced with the windings formed on a tubular carrier (10) the axis of which forms that of the loudspeaker. The coil windings (14) are separated from each other by layers of insulation that are of a high temperature resistant polymer. The outer surface of the carrier tube also has a layer of insulation. The bonding of the curves of the coil with the carrier is produced by ultrasonic welding, with the assembly supported between electrodes (19, 20). <IMAGE>

IPC 1-7 (main, further and additional classification)

H04R 9/04

IPC 8 full level (invention and additional information)

B23K 20/10 (2006.01); H04R 9/04 (2006.01); H04R 31/00 (2006.01)

CPC (invention and additional information)

H04R 9/041 (2013.01)

Designated contracting state (EPC)

AT BE DE DK ES FR GB IT NL SE

DOCDB simple family

DE 4419252 A1 19951207; AT 192010 T 20000515; EP 0687128 A1 19951213; EP 0687128 B1 20000419; JP H0847088 A 19960216