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公开(公告)号：US12081075B2
公开(公告)日：2024-09-03
申请号：US17461956
申请日：2021-08-30
发明人： Codrin Cantemir , Olivia Bruj
摘要： Improved electric machines with tuned coils, integrated power electronics, and stator and rotor cooling assemblies.
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公开(公告)号：US20240195251A1
公开(公告)日：2024-06-13
申请号：US18555042
申请日：2022-02-23
摘要： A stator of a dynamoelectric rotary machine includes a stator body which has substantially axially extending slots, a stator winding, the conductors of which are located in the slots and spacers for positioning the conductors in the slots such that a cavity for the passage of a cooling medium that is continuous over the entire axial length of the slot, remains between the slot walls and the conductors. The stator body is a laminated core having stator sheets stacked axially on top of one another and intermediate sheets that act as spacers located between the stator sheets, the intermediate sheets being axially spaced apart from one another over a plurality of stator sheets and having retainers for retaining and positioning the conductors such that, between each pair of intermediate sheets, the conductors are positioned spaced apart from the walls of the slot in a free-floating manner.
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公开(公告)号：US11967872B2
公开(公告)日：2024-04-23
申请号：US17546416
申请日：2021-12-09
发明人： Chuan Deng , Guohua Du , Yigang Yuan
摘要： An electric machine stator includes a stator core having annular stator laminations arranged in a stack with each lamination includes a plurality of stator teeth, adjacent teeth defining corresponding tooth slots on an inner periphery. Each stator tooth slot includes a winding area and an opening area leading to the inner periphery and including a first side and a second side. The first side and the second side each have an inner and outer tooth top, the inner and outer tooth top of the first side and the inner and outer tooth top of the second side are respectively symmetrical with respect to a center line of the opening area, and the first side and the second side are asymmetric with respect to the center line.
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公开(公告)号：US11901786B2
公开(公告)日：2024-02-13
申请号：US17585604
申请日：2022-01-27
发明人： Thomas Hubert , Stefan Schmidt , Joerg Schneider
CPC分类号： H02K3/345 , H02K3/30 , H02K3/48 , H02K2213/03
摘要： A stator for an electric machine provided for purely electrically driving a motor vehicle is provided with a stator body forming stator grooves, a stator winding through which current can flow, which engages in the respective stator groove and axially protrudes from the stator groove, for forming an electromagnetic rotating field and an insulation paper, which is provided in the stator groove between the stator winding and the stator body, for electrically insulating the stator winding from the stator body, wherein the insulation paper protrudes from the stator groove, wherein the insulation paper is provided with an additional layer on the surface thereof for providing a higher creepage resistance compared to the surface of the insulation paper without the additional layer.
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公开(公告)号：US11837927B2
公开(公告)日：2023-12-05
申请号：US16806591
申请日：2020-03-02
摘要： An electric machine includes a stator core, interconnected hairpin windings, and a terminal. The interconnected hairpin windings are arranged between an inner diameter and an outer diameter of the core. The interconnected hairpin windings are arranged to form a plurality of electrical phases. The terminal is configured to connect a first of the plurality of electrical phases of the hairpin windings to a power source. The terminal has a first plate that is connected to a first pair of hairpins that are disposed along the outer diameter of the core. The terminal has a second plate that is connected to a second pair of hairpins that are disposed along the inner diameter of the core. The terminal has a bridge plate that extends between and connects the first plate to the second plate.
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公开(公告)号：US11757335B2
公开(公告)日：2023-09-12
申请号：US17223443
申请日：2021-04-06
摘要： A stator includes a stator hub and a plurality of stator teeth extending from the stator hub that define a stator slot having a stator slot base. At least one winding is disposed in the stator slot and the stator also includes a back iron. The winding surrounds the back iron and is held apart from the stator slot base so that a fluid channel is defined between an inner winding portion of the at least one winding so fluid can be passed between the stator slot base and the inner winding portion to cool the inner winding portion.
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公开(公告)号：US11616411B2
公开(公告)日：2023-03-28
申请号：US16862641
申请日：2020-04-30
摘要： A set of interchangeably pairable end caps is provided for electrically insulating a variety of stator cores having differing axial stack heights. Each pair of end caps cooperatively defines a generally radially projecting, generally axially extending wire barrier including axially opposed ends. Each of the ends forms a respective rounded winding ramp configured to smoothly guide wiring into a wire trough in part defined by the wire barrier.
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公开(公告)号：US20230060549A1
公开(公告)日：2023-03-02
申请号：US17461429
申请日：2021-08-30
申请人： ABB Schweiz AG
摘要： The disclosed embodiments describe a tapped winding stator for use in an electric motor. In some embodiments, the electric motor includes a stator body. In some embodiments, a plurality of teeth that are adjacent in a circumferential direction. In some embodiments, a plurality of slots are formed between the plurality of teeth. In some embodiments, a plurality of coils are mounted in each of the plurality of slots. In some embodiments, the plurality of coils are tapped in a configuration that allows the stator to selectively bypass one or more of the plurality of coils in operation. A plurality of switches are electrically coupled between the configuration and a respective phase supply to the electric motor, each of the switches having at least a first position and a second position.
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公开(公告)号：US20230038099A1
公开(公告)日：2023-02-09
申请号：US17757704
申请日：2020-12-21
发明人： Min Ho WON
摘要： Provided is a stator assembly comprising a stator including a stator core having a cylindrical shape and a through hole through which two ends communicate with an outside and a wound coil having parts protruding to the outside further than the two ends of the stator core in an axial direction of the stator core and the remaining part positioned in the stator core and heat dissipation caps which are provided on two end portions of the stator core such that the protruding parts of the wound coil are accommodated in contact with an outer surface of the stator core. Therefore, a heat radiation path capable of transferring heat generated by or transferred to a stator coil to the outside increases, heat dissipation efficiency is improved, heat dissipation properties are superior, and thus a decrease in operational efficiency of a motor due to heat generation may be minimized or prevented.
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公开(公告)号：US11557931B2
公开(公告)日：2023-01-17
申请号：US16905226
申请日：2020-06-18
发明人： Yasushi Nishikuma
摘要： A stator for a rotary electric machine includes a stator coil configured such that a tip end of a conductor segment bent in a stator circumferential direction is joined to a tip end of another conductor segment in the same phase. A conductive material is exposed from the tip ends of the conductor segments, and a distance between the tip ends in different phases and adjacent to each other in the stator circumferential direction is larger than a distance between the tip ends in the same phase and adjacent to each other in the stator circumferential direction.
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