EP 0127801 B1 19861022 - COMMUTATOR FOR AN ELECTRIC MACHINE AND METHOD OF MAKING IT
Title (en)
COMMUTATOR FOR AN ELECTRIC MACHINE AND METHOD OF MAKING IT
Publication
Application
Priority
CH 307183 A 19830603
Abstract (en)
[origin: US4603474A] A collector for electric machines, including a rotationally symmetrical sintered ceramic body and a plurality of radially disposed metallic segments which are separated from each other by one interspace each and which are bonded to the ceramic body via a eutectic intermediate layer. The segments are bonded to the ceramic body in accordance with the eutectic method by being surface-oxidized on their inside narrow side and radially pressed against the ceramic body with the totality being brought to the melting temperature corresponding to the metal/metal-oxide eutectic and subsequently being cooled down again. A preferred embodiment includes: copper segments on an Al2O3 ceramic body.
IPC 1-7
IPC 8 full level
H01R 43/06 (2006.01); H02K 13/00 (2006.01)
CPC (source: EP US)
H01R 43/06 (2013.01 - EP US); Y10S 29/048 (2013.01 - EP US); Y10S 228/903 (2013.01 - EP US); Y10T 29/49011 (2015.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0127801 A1 19841212; EP 0127801 B1 19861022; AT E23080 T1 19861115; CA 1226324 A 19870901; DE 3461040 D1 19861127; JP S6020754 A 19850202; US 4603474 A 19860805
DOCDB simple family (application)
EP 84105347 A 19840511; AT 84105347 T 19840511; CA 455202 A 19840525; DE 3461040 T 19840511; JP 11110484 A 19840601; US 61151484 A 19840517