EP 4115501 A1 20230111 - ELECTRIC MOTOR PROVIDED WITH A COOLING CIRCUIT
Title (en)
ELECTRIC MOTOR PROVIDED WITH A COOLING CIRCUIT
Title (de)
ELEKTROMOTOR MIT KÜHLKREISLAUF
Title (fr)
MOTEUR ÉLECTRIQUE ÉQUIPÉ D'UN CIRCUIT DE REFROIDISSEMENT
Publication
Application
Priority
- FR 2002192 A 20200304
- FR 2021050291 W 20210218
Abstract (en)
[origin: WO2021176158A1] The invention relates to an electric motor (1) comprising a rotor (11) mounted on a shaft (12), a stator (13) arranged around the rotor (11), a front bearing (14) and a rear bearing (15) connected to each other by attachment means (21), the front and rear bearings (14, 15) forming an internal cavity housing the rotor (11) and the stator (13), characterised in that the electric motor (1) further comprises a bell-shaped thermal insulation cover (20) completely covering the rear bearing (15) and a portion (142) of the front bearing (14), extending axially from an end face (141) of the front bearing (14), the thermal insulation cover (20) forming, with the front bearing (14), at least one inner fluid circulation channel (9) inside which a coolant flows.
IPC 8 full level
H02K 5/08 (2006.01); H02K 5/20 (2006.01); H02K 9/19 (2006.01)
CPC (source: EP US)
H02K 5/08 (2013.01 - EP); H02K 5/1732 (2013.01 - US); H02K 5/20 (2013.01 - EP); H02K 5/203 (2021.01 - US); H02K 7/083 (2013.01 - US); H02K 9/19 (2013.01 - US); H02K 9/197 (2013.01 - EP)
Citation (search report)
See references of WO 2021176158A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021176158 A1 20210910; CN 115298936 A 20221104; EP 4115501 A1 20230111; FR 3108003 A1 20210910; FR 3108003 B1 20220304; US 2023012821 A1 20230119
DOCDB simple family (application)
FR 2021050291 W 20210218; CN 202180018028 A 20210218; EP 21710544 A 20210218; FR 2002192 A 20200304; US 202117905211 A 20210218