- 专利标题： STATOR FOR AN ELECTRIC MACHINE, ELECTRIC MACHINE, ELECTRIC DRIVE FOR A VEHICLE AND VEHICLE
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申请号： EP22182325.5申请日： 2022-06-30
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公开(公告)号： EP4300781A1公开(公告)日： 2024-01-03
- 发明人: Pugazhenthi, Leo Vijay
- 申请人： Valeo eAutomotive Germany GmbH
- 申请人地址： DE 91056 Erlangen Frauenauracher Straße 85
- 代理机构： Valeo Powertrain Systems
- 主分类号： H02K3/28
- IPC分类号： H02K3/28 ; H02K3/12
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).
- 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).
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