公开(公告)号：EP4033643A1

公开(公告)日：2022-07-27

申请号：EP21153477.1

申请日：2021-01-26

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： SCHUERMANS, Raf ,  ENDO, Takahito ,  ARLAND, Silvio

IPC分类号： H02K5/20 ,  H02K9/19

摘要： An electric motor (10) comprising:
- a rotor member (16) rotatably coupled to a rotation shaft (20) of longitudinal axis (X) and a surrounding stator member (18) comprising a first and a second opposite winding heads (18b,18c) having each inner and outer radially located sides,
- a cooling system (CS) comprising:
a cooling fluid pipe (24) arranged above the stator member and having cooling fluid projecting orifices (24a-c) for projecting cooling fluid downwardly towards the outer side (18b1) of a winding head (18b),
a rotating member (26) rotatably coupled to shaft (20) and having an outer peripheral surface (26a) arranged inwardly relative to the inner side (18b2), the rotating member (26) configured to collect on its surface (26a) cooling fluid that has flown downwardly through the winding head from its outer side to its inner side and to distribute collected cooling fluid towards the latter by centrifugal force, while the rotating member (26) rotates.

公开(公告)号：EP4318892A1

公开(公告)日：2024-02-07

申请号：EP22188974.4

申请日：2022-08-05

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： SCHUERMANS, Raf ,  DE LAURI, Giovanni ,  ENDO, Takahito

IPC分类号： H02K3/34

摘要： An insulation system (10) configured for use in an electric machine (100) includes at least one first insulation section (20) including at least one first insulation element (22), the first insulation element being configured to be applied to at least a portion of a first winding type (112) of a plurality of windings (110), and the first insulation element having a first insulation thickness, and at least one second insulation section (40) including at least one second insulation element (42), the second insulation element being configured to be applied to at least a portion of a second winding type (114) of the plurality of windings, and the second insulation element having a second insulation thickness greater than the first insulation thickness of the first insulation element, wherein the first insulation section is arranged adjacent the second insulation section in a circumferential direction.

公开(公告)号：EP4096064A1

公开(公告)日：2022-11-30

申请号：EP21176729.8

申请日：2021-05-28

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： SCHUERMANS, Raf ,  MAMOLIS, Georgios ,  ENDO, Takahito

IPC分类号： H02K1/27

摘要： A rotor (10) of an electric motor includes several poles (10) arranged circumferentially relative to the rotor, each pole comprising a first set (S1) proximate a rotor outer edge (32) and a second set (S2) farther from the latter. The first (S1) and second (S2) sets are symmetrical relative to a d-axis (A). Each symmetrical part (S2.1, S2.2) in the second set (S2) has two opposite ends (40, 44, 42, 46) terminating respectively with an outer flux barrier (40, 42) proximate the outer edge (32) and an opposite inner flux barrier (44, 46), both inner flux barriers (44, 46) being separated from each other by an arrangement comprising two radially-extending inner bridges (48, 50) flanking a central radially-extending flux barrier (52) aligned along the d-axis (A).