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公开(公告)号：US20240356391A1
公开(公告)日：2024-10-24
申请号：US18684892
申请日：2022-10-04
摘要： A stator for an electric machine of a motor vehicle includes with a laminated core in which at least one cooling channel runs, through which a cooling fluid for cooling the stator can flow, and at least one winding which is held on the laminated core and has a winding head. At least one ring is provided which adjoins a laminated core at least partially in the axial direction of the stator, has at least one guide channel which is connected fluidically to the cooling channel and through which the cooling fluid from the cooling channel can flow as a result, which guide channel has at least one outlet opening which is directed towards the winding head and via which the cooling fluid which flows through the cooling channel can be discharged from the ring and can be sprayed against the winding head.
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2.发明公开公开(公告)号：US20240339875A1
公开(公告)日：2024-10-10
申请号：US18297855
申请日：2023-04-10
申请人： ABB Schweiz AG
摘要： A lamination for a stator of an electric motor includes: a material sheet having a generally circular shape with a center and a radial direction, an outer contour, and an inner contour, the outer and inner contours being generally concentric with the center. The inner contour is defined by an arrangement of a plurality of teeth and a plurality of stator slots, each tooth of the plurality of teeth having one stator slot of the plurality of stator slots to a first side of the tooth and one stator slot of the plurality of stator slots to a second side of the tooth, the inner contour defining a rotor hole for receiving a rotor of the electric motor. The material sheet has a plurality of internal cooling holes arranged around the rotor hole.
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公开(公告)号：US20240339872A1
公开(公告)日：2024-10-10
申请号：US18225268
申请日：2023-07-24
发明人： Takayuki KOIZUMI , Kiyoshi ITO
摘要： The rotating electric machine comprises: a stator core that has a first stator core portion and a second stator core portion, and an air gap portion, the first and the second stator core portions having slots and being divided in the axial direction, the air gap portion being formed between the first stator core portion and the second stator core portion by making the first stator core portion and the second stator core portion face each other in the axial direction; a plurality of coil conductors inserted into the slots; a wall portion covering the air gap portion on the inner circumference side of the air gap portion; and a coolant flow passage that sends a coolant supplied from the outer circumference side of the stator core to the air gap portion through between the plurality of coil conductors to both end surfaces of the stator core.
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公开(公告)号：US20240313591A1
公开(公告)日：2024-09-19
申请号：US18121087
申请日：2023-03-14
申请人： BorgWarner Inc.
发明人： Michael D. Bradfield
摘要： An electric motor can be employed for use in a hybrid electric vehicle (HEV) or in a battery electric vehicle (BEV), as example applications. In an implementation, the electric motor has a stator assembly with a multitude of laminations exhibiting an axially-stacked arrangement. The laminations establish coolant channels at a radially-outboard location thereof, and establish slots at a radially-inboard location thereof. Conductors such as windings are disposed at the slots. Some or more of the coolant channels and some or more of the slots are in fluid communication with each other whereby coolant flows through the coolant channels, to the slots, and into contact with the conductors. Enhanced cooling effectiveness at the stator and elsewhere results.
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公开(公告)号：US12081073B2
公开(公告)日：2024-09-03
申请号：US18398484
申请日：2023-12-28
申请人： EVR MOTORS LTD
发明人： Oleg Gaspar , Victor Kislev , Ruslan Shabinski , Eliyahu Rozinsky
IPC分类号： H02K1/18 , H02K1/02 , H02K1/14 , H02K1/2786 , H02K21/22 , H02K1/16 , H02K1/20 , H02K1/2793 , H02K3/12 , H02K3/14 , H02K3/28 , H02K3/487 , H02K3/493 , H02K3/50 , H02K3/52 , H02K5/18 , H02K9/19 , H02K9/22
CPC分类号： H02K1/187 , H02K1/02 , H02K1/14 , H02K1/146 , H02K1/2786 , H02K21/22 , H02K1/165 , H02K1/185 , H02K1/20 , H02K1/2793 , H02K3/12 , H02K3/14 , H02K3/28 , H02K3/487 , H02K3/493 , H02K3/50 , H02K3/525 , H02K5/18 , H02K9/19 , H02K9/22 , H02K9/227 , H02K2201/03
摘要： An electric machine includes a plurality of electromagnetic coils arranged circumferentially about the axis of rotation. Each coil defines a trapezoidally-shaped and tapered coil opening. The electric machine also includes a plurality of yokes that extend in an axial direction and a plurality of teeth. At least one of the plurality of yokes is tapered in the axial direction, and at least one tooth extends from each of the plurality of yokes. The plurality of teeth are each tapered in a radial direction to enable the plurality of teeth to fit within a corresponding trapezoidally-shaped and tapered coil opening.
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公开(公告)号：US12074506B2
公开(公告)日：2024-08-27
申请号：US17451614
申请日：2021-10-20
申请人： Dana Belgium N.V.
发明人： Joachim Druant , Steven Vanhee
摘要： An electric machine system is provided. The system includes a stack of a plurality of stator laminations with at least a portion of the plurality of stator laminations each including a plurality of holes that are arranged radially outward from a plurality of teeth, where the plurality of holes include a first set of holes, a second set of holes, and a third set of holes, where the first, second, and third sets of holes has a different profile and/or area, where the second set of holes are positioned radially inward from the third set of holes; and where a plurality of oil channels are formed by an alignment of holes in adjacent stator laminations in the portion of the plurality of stator laminations.
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公开(公告)号：US20240235304A1
公开(公告)日：2024-07-11
申请号：US18364868
申请日：2023-08-03
摘要： A process for making a hollow electrical coil for an electric motor includes forming a sacrificial insert material into a coil shaped insert. The coil shaped insert is placed into a copper plating bath and a copper plated coil shaped member is removed from the copper plating bath. The sacrificial material is removed from within the copper plated coil shaped member to create a hollow passage through a hollow copper coil shaped member. An exterior of the hollow copper coil shaped member is coated with an insulating adhesive material and the copper coil shaped member is compressed until the insulating adhesive material is set.
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公开(公告)号：US20240204618A1
公开(公告)日：2024-06-20
申请号：US18288756
申请日：2022-02-09
发明人： Yuki UGAMOCHI , Kazuya OGURA , Kyoichi NOMURA
摘要： A motor 1 includes a stator 3, a rotor 2, and a housing 52. The housing 52 includes a one-side space 52a, an other-side space 52b, a one-side communication hole 52c, and an other-side communication hole 52d. The one-side space 52a and the other-side space 52b communicate with each other via a gap G, the one-side communication hole is connected to a first airflow generator 64, and the other-side communication hole is connected to a second airflow generator 65. The motor 1 includes a forced inflow hole 52c1 connected to the first airflow generator 64 and a natural exhaust hole 52c2 through which air is naturally exhausted as the one-side communication hole, and includes a forced exhaust hole 52d1 connected to the second airflow generator 65 and a natural intake hole 52d2 through which air is naturally sucked into inside of the other-side space 52b as the other-side communication hole.
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公开(公告)号：US20240204590A1
公开(公告)日：2024-06-20
申请号：US18554483
申请日：2022-04-08
发明人： Michael Menhart , Stefan Riess , Johann Oswald , Carsten Sonntag , Daniel Mahler
IPC分类号： H02K1/20
CPC分类号： H02K1/20
摘要： A stator of an electric prime mover and to an electric prime mover having the stator. The stator includes a stator core and windings of at least one electrical conductor that are arranged annularly on the stator core, and at least one wet chamber through which a coolant flows, so that heat from at least one winding can be absorbed by the coolant.
The stator and the electric prime mover constitute units which implement long-lasting and efficient cooling of the stator while using a small axial installation space.-
公开(公告)号：US12003138B2
公开(公告)日：2024-06-04
申请号：US18016937
申请日：2021-04-01
申请人： Innomotics GmbH
摘要： A housing-free dynamoelectric rotary machine includes a stator having a material layer structure which includes a plurality of material layers arranged in a row along a rotation axis. The material layer structure includes a plurality of thickenings and a plurality of slots, with the slots arranged such that each of the slots is arranged between two respective ones of the thickenings. At least one of the slots is designed to receive a slot wedge, with a respective one of the thickenings being designed to fasten the slot wedge. An end element is arranged on an axial end of the stator and includes a connection box for supply with electrical energy. A connecting element connects the end element to the stator and is connected to the slot wedge.
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