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公开(公告)号：EP4461576A2
公开(公告)日：2024-11-13
申请号：EP23217127.2
申请日：2023-12-15
发明人： JIN, Yejin , MULLER, Michel
摘要： The present disclosure relates to a vehicle cooling system (100), comprising a water cooling circuit (10), an oil cooling circuit (20), an electric energy storage unit (1), and an electric driving unit (2), wherein the water cooling circuit (10) comprises a first cooling pipeline (11) for cooling the electric energy storage unit (1), and the electric driving unit comprises an electric motor (3), a gearbox (4), and a power electronic device (5). The water cooling circuit (10) comprises a second cooling pipeline (12) for cooling the power electronic device (5), wherein the first cooling pipeline (11) and the second cooling pipeline (12) are connected in series in the water cooling circuit (10), and the second cooling pipeline (12) is arranged downstream of the first cooling pipeline (11) along the direction of cooling water flow. The housings for the electric motor (3) and the gearbox (4) are integrated, and the oil cooling circuit (20) is arranged inside the housings for the electric motor (3) and the gearbox (4), wherein a cooling airflow (F) flows through the surfaces of the housings for the electric motor (3) and the gearbox (4). The present disclosure further relates to a vehicle comprising such a vehicle cooling system.
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公开(公告)号：EP4366140A1
公开(公告)日：2024-05-08
申请号：EP22205733.3
申请日：2022-11-07
发明人： Haas, Bernd , REYMANN, Markus
摘要： The invention concerns an electric drive (100) comprising an electric motor (101), a power module (105), and a coolant jacket (120), the coolant jacket (120) comprising a body which comprises an inner peripheral wall (121) and an outer peripheral wall (122). According to the invention:
the electric motor (101) is accommodated and surrounded by the inner peripheral wall (121) of the coolant jacket (120);
the power module (105) is mounted on one or plural interface zones of the outer peripheral wall (122) of the coolant jacket (120);
the coolant jacket (120), being located between the electric motor (101) and the power module (105), is configured to dissipate heat generated by the electric motor (101) and by the power module (105).-
公开(公告)号：EP4325092A1
公开(公告)日：2024-02-21
申请号：EP23188952.8
申请日：2023-08-01
发明人： WANG, Wenhui , JIN, Yejin
IPC分类号： F16H57/04
摘要： The present disclosure relates to a gearbox (100), comprising: a housing (10); a first shaft (20), accommodated in the housing (10) and having a first large gear (21), the first shaft (20) rotating about a first rotation axis (X1), the first rotation axis (X1) being substantially parallel to an axial direction of the gearbox (100); a second shaft (30), accommodated in the housing (10) and having a second large gear (31), the second shaft (30) rotating about a second rotation axis (X2), the second rotation axis (X2) being substantially parallel to the axial direction of the gearbox (100); and an oil isolation plate (50) which, together with the housing (10), forms a lubricating oil holding space (S), the lubricating oil holding space (S) being substantially isolated from the first large gear (21) and the second large gear (31). The present disclosure further relates to a vehicle comprising such a gearbox.
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公开(公告)号：EP4324678A1
公开(公告)日：2024-02-21
申请号：EP22191155.5
申请日：2022-08-19
IPC分类号： B60L1/02 , B60L3/00 , B60L50/51 , B60L53/20 , H02K5/15 , H02K5/173 , H02K5/20 , H02K7/116 , H02K9/19 , H02K11/33 , B60K11/02 , B60K1/00 , H05K7/20 , F28D9/00 , F28D21/00
摘要： An arrangement is disclosed, which comprises a water oil heat exchanger (2d) having a base body (3d) with a heat exchanger water channel and a heat exchanger oil channel and an electric power converter (4d) with a plurality of electronic power switches, which are mounted on or in the base body (3d) of the water oil heat exchanger (2d). Moreover, the invention relates to an electric drive unit (17a), which comprises a housing (19), an electric motor (12b) and a gear unit (18) being arranged in the housing (19), and a drive unit oil channel (26) in the housing (19) for cooling the same, which is connected to the heat exchanger oil channel of the arrangement. Finally, the invention relates to a vehicle with an electric drive unit (17a), which is provided to propel the vehicle (28).
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5.发明公开
公开(公告)号：EP4300781A1
公开(公告)日：2024-01-03
申请号：EP22182325.5
申请日：2022-06-30
摘要： Stator (1) for an electric machine (101), comprising:
- a stator core (2) comprising a longitudinal axis (3), an axial first face side (4) and an axial second face side (5) opposite to the first face side (4), the stator core (2) providing an accommodation space (6) for a rotor (102) of the electric machine (101);
- multiple hairpin conductors (9, 10) having first type leg portions (12, 15) and second type leg portions (15), the hairpin conductors (9, 10) being connected to each other so as to form a stator winding; and
- a slot (7) formed within the stator core (2) and radially divided into an inner layer (18) located closest to the accommodation space (6) and into further layers (19a-d) being more distant to the accommodation space (6) than the inner layer (18);
wherein two first type leg portions (12) extend within the inner layer, one second type leg portion (15) extends within each of the further layers (19a-d), in a cross-section perpendicular to the longitudinal axis (3), the radial extent of each of the first type leg portions (12) is smaller than the radial extent of each of the second type leg portions (15), and the first type leg portions (12) are electrically shortcircuited at the first face side (4).-
公开(公告)号：EP4290741A1
公开(公告)日：2023-12-13
申请号：EP22177858.2
申请日：2022-06-08
发明人： Förster, David , Hubert, Markus
摘要： Stator (2), aufweisend einen Statorkern (3) mit einer Längsachse (4), mit einer axialen ersten Stirnseite (5) und mit einer der ersten Stirnseite (5) gegenüberliegenden axialen zweiten Stirnseite (6) und eine Vielzahl von Formleitern (7a-d), welche eine Statorwicklung ausbilden und den Statorkern (3) abschnittsweise zwischen der ersten Stirnseite (5) und der zweiten Stirnseite (6) durchsetzen, wobei wenigstens einer der Formleiter (7b-d) als Anschlussformleiter (7c-d) mit einem ersten Abschnitt (9), der an der ersten Stirnseite (5) aus dem Statorkern (3) in axialer Richtung herausragt, und mit einem zweiten Abschnitt (10), der ein freies (11) Ende des Anschlussformleiters (7b-d) umfasst, ausgebildet ist, wobei der Anschlussformleiter (7b-d) zwischen dem ersten Abschnitt (9) und dem zweiten Abschnitt (10) einen dritten Abschnitt (12) mit mehreren Biegungen (13a-c) aufweist, durch welche der dritte Abschnitt (12) bei einer Relativbewegung des zweiten Abschnitts (10) bezüglich des ersten Abschnitts (9) derart elastisch verformbar ist, dass der Relativbewegung eine Rückstellkraft entgegengesetzt wird.
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7.发明公开
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公开(公告)号：EP4203277A1
公开(公告)日：2023-06-28
申请号：EP21217473.4
申请日：2021-12-23
发明人： Wolf, Nico , Wieczorek, Christoph , Siepker, Carsten , Bach, Regina , Finger-Albert, Christian , Menz, Michael , Förtsch, Steffen
摘要： The invention concerns a rotor (1) comprising a rotor shaft (4), a rotor body (2) formed of a stack of laminations, a field coil (3) wound around the rotor body (2), at least one slip ring (5) mounted on the rotor shaft (4) and configured to exchange electric power with an external power supply, each of the at least one slip ring (5) being configured to be electrically connected to an end of the field coil (3) through an electrical connector (6). The electrical connector (6) is pre-bended such that to comprise an axial portion (63) and a radial portion (64) respectively located on both sides of a bend (65), the axial portion (63) being configured to pass through an axial bore (41) of the rotor shaft (4), the radial portion (64) being configured to pass through a through bore (42) of the rotor shaft (4).
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