Global Patent Index - EP 3347974 A1

EP 3347974 A1 20180718 - STATOR OF A ROTARY ELECTRIC MACHINE WITH IMPROVED MAGNETIC PERFORMANCE

Title (en)

STATOR OF A ROTARY ELECTRIC MACHINE WITH IMPROVED MAGNETIC PERFORMANCE

Title (de)

STATOR EINER ELEKTRISCHEN DREHMASCHINE MIT VERBESSERTER MAGNETISCHER LEISTUNG

Title (fr)

STATOR DE MACHINE ELECTRIQUE TOURNANTE A PERFORMANCES MAGNETIQUES AMELIOREES

Publication

EP 3347974 A1 20180718 (FR)

Application

EP 16767338 A 20160907

Priority

  • FR 1558476 A 20150911
  • FR 2016052231 W 20160907

Abstract (en)

[origin: WO2017042489A1] The invention mainly concerns a stator (9) of a rotary electric machine, in particular intended for an electric compressor for a motor vehicle, the stator (9) comprising: - a yoke (28), - a plurality of teeth (27) angularly distributed on an inner periphery of said yoke (28), - a plurality of slots (29) each defined by two adjacent teeth (27), - a winding (17) comprising a plurality of coils (50), each coil (50) being formed by a wire (51) wound around a tooth, characterised in that a ratio between a diameter of a conductive portion of said non-enamelled wire (51), expressed in mm, and a number of turns of each coil (50) is of between 5% and 25%, and in particular between 10% and 20%.

IPC 8 full level

H02K 3/18 (2006.01); H02K 1/14 (2006.01); H02K 3/28 (2006.01)

CPC (source: EP)

H02K 1/146 (2013.01); H02K 3/18 (2013.01); H02K 3/28 (2013.01); H02K 2213/03 (2013.01)

Citation (search report)

See references of WO 2017042489A1

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 2017042489 A1 20170316; CN 108141085 A 20180608; CN 108141085 B 20210727; EP 3347974 A1 20180718; FR 3041188 A1 20170317

DOCDB simple family (application)

FR 2016052231 W 20160907; CN 201680052669 A 20160907; EP 16767338 A 20160907; FR 1558476 A 20150911