EP 3925061 A1 20211222 - MECHANICAL-COMMUTATOR POLYPHASE SYNCHRONOUS ELECTRIC MACHINE
Title (en)
MECHANICAL-COMMUTATOR POLYPHASE SYNCHRONOUS ELECTRIC MACHINE
Title (de)
ELEKTRISCHER MEHRPHASEN-SYNCHRONMOTOR MIT MECHANISCHEM KOMMUTATOR
Title (fr)
MACHINE ÉLECTRIQUE SYNCHRONE POLYPHASÉE À COMMUTATEUR MÉCANIQUE
Publication
Application
Priority
- FR 1901359 A 20190212
- FR 1907210 A 20190628
- FR 1907211 A 20190628
- EP 2020053605 W 20200212
Abstract (en)
[origin: WO2020165252A1] Mechanical commutator (40) for electric machine (1) suitable for supplying power via a polyphase current system comprising q phases, where q is a positive integer strictly greater than 1, to a rotary electric machine rotor (3) having 2*p magnetic poles, comprising: - a slip ring (41) that rotates about an axis (X) of the electric machine (X), of elementary pattern equal to 2*π/(p*q); - at least one pair radially extending brushes, a positive brush (45) and a negative brush (46), suitable for rubbing against the slip ring (41), which are rotatably fixed and each defined over an angular sector, and suitable for connection to one and the same voltage source, in particular a vehicle battery (B), characterized in that the mechanical slip ring (41) comprises n*p*q, where in particular n = 1 or n = 2, conductive strips (60) which come one after the other circumferentially, each strip (60) being defined over an angular sector, adjacent strips being isolated from one another, the strips being distributed in q groups (a', b', c'), all of the strips (60) of one and the same group being electrically connected to one another, the q groups alternating circumferentially, and in that the brushes (45, 46) of one and the same pair are circumferentially offset relative to one another by [(2k+1)*2*π]/(2*p)], k being a natural integer.
IPC 8 full level
H01R 39/02 (2006.01); H01R 39/32 (2006.01); H02K 9/06 (2006.01); H02K 11/33 (2016.01); H02K 13/00 (2006.01); H02K 13/04 (2006.01); H02K 13/10 (2006.01)
CPC (source: EP)
H01R 39/04 (2013.01); H01R 39/32 (2013.01); H02K 9/06 (2013.01); H02K 11/33 (2016.01); H02K 13/006 (2013.01); H02K 13/04 (2013.01); H02K 13/10 (2013.01); H02K 2213/03 (2013.01)
Citation (search report)
See references of WO 2020165252A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020165252 A1 20200820; CN 113474978 A 20211001; EP 3925061 A1 20211222
DOCDB simple family (application)
EP 2020053605 W 20200212; CN 202080014028 A 20200212; EP 20703763 A 20200212