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公开(公告)号：US12095322B2
公开(公告)日：2024-09-17
申请号：US17481071
申请日：2021-09-21
发明人： Hisato Sumitomo , Tatsuya Tonari , Yuji Nakazawa
摘要： A stator includes a cylindrical stator core provided with a plurality of slots, a segment conductor mounted to the stator core, and a resin insulator including a winding barrel portion and an insertion portion that are integrally molded. The segment conductor includes a plurality of leg portions inserted into the slots, and a crossover wire portion that couples two of the leg portions inserted into the slots that differ from each other. The winding barrel portion is disposed between the stator core and the crossover wire portion of the segment conductor. The insertion portion is disposed on an inner side from the segment conductor inside the slots of the stator core.
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公开(公告)号：US20240291365A1
公开(公告)日：2024-08-29
申请号：US18569012
申请日：2023-01-23
申请人： DeepDrive GmbH
摘要： The present invention relates to an electric drive system for or in a motor vehicle, having: at least one synchronous machine, which has a double rotor and a distributed winding placed in a stator core, wherein the double rotor is constructed from flux-carrying material made of solid material, wherein the winding is designed to be self-supporting for torque support; and at least one three-stage or multi-stage inverter circuit that is coupled to the synchronous machine at a load output and that is designed to convert a DC voltage received on the supply side into an AC voltage via which the synchronous machine can be driven via the load output, wherein the inverter circuit has a controllable three-stage or multi-stage inverter.
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公开(公告)号：US12068650B2
公开(公告)日：2024-08-20
申请号：US17787750
申请日：2020-12-02
申请人： NOVARES FRANCE
发明人： Cédric Ledieu
摘要： A stator for an electric motor includes a stator body forming a ring, the inner face of which is provided with teeth delimiting two by two notches open towards the inside of the stator body; U-shaped conductor segments, partially inserted into the notches of the stator body; and an electrical connection component to electrically connect the conductor segments together. The stator further includes a case for circulating a cooling fluid having a first fluid circulation channel, called the inlet channel, and a second fluid circulation channel, the outlet channel, the inlet and outlet channels being fluidly connected by connecting channels. Each connecting channel is formed by a cavity through each conductor segment along its entire length, the central cavity extending from an inlet end to an outlet end, the inlet end opening into the inlet channel and the outlet end opening into the output channel.
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公开(公告)号：US11955851B2
公开(公告)日：2024-04-09
申请号：US17358489
申请日：2021-06-25
发明人： Feng Liang , Michael W. Degner
CPC分类号： H02K15/0087 , H02K1/16 , H02K3/14 , H02K3/28 , H02K3/50 , H02K15/024
摘要： An electric machine includes a stator core defining slots and a first hairpin assembly installed in the stator core. The first hairpin assembly includes first and second same hairpins, each having first and second ends and separately coated to have first and second outer coating surfaces, respectively. The hairpin assembly is in first and second ones of the slots such that the first and second outer surfaces are touching. A weld material joins the first ends and another weld material joins the second ends.
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公开(公告)号：US20240113586A1
公开(公告)日：2024-04-04
申请号：US18264812
申请日：2022-02-07
发明人： Nick SIMPSON
摘要： An electrical winding element for an electrical machine can have a first end portion with a first single elongate conductive member; a second end portion with a second single elongate conductive member; and an intermediate portion with a plurality of intermediate conductive members arranged in an electrically parallel arrangement to conductively connect between the first end portion and the second end portion. A stator and an electrical machine are also disclosed.
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公开(公告)号：US11831202B2
公开(公告)日：2023-11-28
申请号：US18104426
申请日：2023-02-01
申请人： EVR MOTORS LTD
发明人： Victor Kislev , Oleg Gaspar , Ruslan Shabinski , Eliyahu Rozinsky
IPC分类号： H02K1/18 , H02K1/02 , H02K1/2786 , H02K1/14 , H02K21/22 , H02K3/493 , H02K3/28 , H02K3/12 , H02K1/16 , H02K1/2793 , H02K5/18 , H02K3/487 , H02K3/14 , H02K3/50 , H02K9/22 , H02K1/20 , H02K3/52 , H02K9/19
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 may include an stator and a rotatable rotor. At least one of the stator or the rotor may include a plurality of multi-part trapezoidal teeth with an electromagnetic coil disposed around each tooth.
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公开(公告)号：US20230327507A1
公开(公告)日：2023-10-12
申请号：US18128861
申请日：2023-03-30
发明人： Arash SHAGHAGHI , Thomas PASTERNOK
摘要： A stator for an electric machine comprises a stator base body and a plurality of winding rods, each having a bending region from which two axial wire arms extend with an arm end pointing away from the bending region, the wire arms being arranged in the stator slots of the stator one above another in the radial direction. The winding bars are each assigned to one of a plurality of phases of the stator. The bending regions on a first base body end face of the stator base body form a first end winding. The arm ends on a second base body end face of the stator base body form a second end winding and are electrically coupled to one another in pairs in each case. Adjacent bending regions are combined to form bending region groups and are arranged predominantly in alignment one behind the other in the radial direction.
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公开(公告)号：US11750054B2
公开(公告)日：2023-09-05
申请号：US17322659
申请日：2021-05-17
摘要： A modulated litz wire wherein the braid of a litz wire is varied along its length such that bulkier sections are located at the end-turns of a motor, while more compact parallel stranded sections are located in stator slots or magnetic gaps. Variations may include parallel stranded sections replaced with a longitudinal twist for improved handling or improved current sharing in strands.
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公开(公告)号：US20230275495A1
公开(公告)日：2023-08-31
申请号：US18016168
申请日：2021-07-01
发明人： Sebastian Reising
IPC分类号： H02K15/04 , H02K3/14 , H01F41/071
CPC分类号： H02K15/0478 , H02K3/14 , H01F41/071
摘要： The invention relates to a method for producing a wave winding for forming a coil winding (30) with at least one wave winding layer (33a, b) in a stator or rotor element (100), wherein a winding former (10) is provided with at least two winding sections (13a, b, c) and such that it can be rotated about a longitudinal axis (11), comprising the following method steps: Applying parallel coil wires to a first side (15) of the winding former (10) in a winding section (13) of the winding former (10); forming winding heads (31a, b) by alternately axially shifting the parallel coil wires on the winding former (10) and winding same about the rotated winding former (10); repeating steps a and b until the wave winding has reached a length of a first wave winding layer (33a) of the coil winding (30), wherein, according to the invention, the steps a to c are repeated in another winding section (13b) with a different winding width (12b). The invention also relates to a winding former (10) for producing a wave winding of this type which is suitable for introduction into grooves of a stator or rotor element (100).
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公开(公告)号：US11742726B2
公开(公告)日：2023-08-29
申请号：US17456642
申请日：2021-11-28
发明人： Yi-Ming Wu
摘要： A motor stator includes a ring-shaped core defining a rotor accommodation space, a plurality of slots, a first hairpin conductor, a second hairpin conductor, and a temperature sensor. The slots are disposed in the core and arranged to surround the rotor accommodation space circumferentially. The slots extend radially from the rotor accommodation space. The core includes an insertion side and an extension side. The slots include a temperature sensor accommodation slot which, at the insertion side, has a radial length greater than a radial length of any other one of the slots. The first hairpin conductor is disposed in the temperature sensor accommodation slot distal to the rotor accommodation space. The second hairpin conductor is disposed in the temperature sensor accommodation slot, and the temperature sensor is disposed between the first and second hairpin conductors.
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