ROTARY ELECTRIC MACHINE FOR TRANSMISSION SYSTEM

WIPO Patent Application WO/2022/188139

A1

The invention relates to a rotary electric machine (1) able to be fixed to a transmission system, notably to a gearbox, the rotary electric machine (1) having an axis of rotation (A) and comprising: -a stator (2), -a shaft (4) comprising a first end (37), the first end (37) being free and comprising a driving element (13) able to drive a rotary element of the transmission system, -a rotor (3), the rotor being fixed to the shaft (4), -a casing (41) in which the stator (3) is fixed and comprising a first bracket (6) and a second bracket (5), -a first bearing (12), notably a first rolling bearing, mounted in the first bracket (6) and guiding the rotation of the shaft (4), -a second bearing (11), notably a second rolling bearing, mounted in the second bracket (5) and guiding the rotation of the shaft (4), -a first seal (14), distinct from the first bearing (12), the first seal (14) contributing to sealing between the first bracket (6) and the shaft (4), wherein the shaft (4) comprises a sealing land (42) axially between the first bearing (12) and the rotor (3), the first seal (14) being in contact with the sealing land (42).

JP2007162723	MOTOR INTEGRATED MAGNETIC BEARING DEVICE
JP6522148	Motors and manufacturing methods for motors

WANG JIAN (CN)
YU GUODONG (CN)
VEROT JACQUES (FR)

PCT/CN2021/080420

September 15, 2022

March 12, 2021

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SHANGHAI VALEO AUTOMOTIVE ELECTRICAL SYSTEMS CO LTD (CN)
VALEO EQUIP ELECTR MOTEUR (FR)

H02K5/173; H02K5/10; H02K5/124; H02K7/116

WO2014069975A1

2014-05-08

EP1231701A1	2002-08-14
DE3211715A1	1983-10-13
US20170261035A1	2017-09-14
FR3086124A1	2020-03-20

LIU, SHEN & ASSOCIATES (CN)

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