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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：US20240195267A1
公开(公告)日：2024-06-13
申请号：US18553742
申请日：2022-03-08
发明人： Stefan Riess , Michael Menhart , Johann Oswald , Carsten Sonntag
摘要： An electric machine, in particular an axial flux machine, including a rotor mounted in a dry chamber rotatable relative to a stator, the rotor having a rotor shaft with at least one first disk-shaped rotor member which is non-slidably arranged on the rotor shaft for conjoint rotation therewith, the stator having a first annular disk-shaped stator member and a second annular disk-shaped stator member which are arranged coaxially to one another and coaxially to the rotor shaft and are axially spaced apart from one another, the rotor being arranged in the space therebetween. The first stator member has a first stator winding, and the second stator member has a second stator winding, the first stator winding being arranged within a first hydraulic chamber, and the second stator winding being arranged within a second hydraulic chamber, at least part of the stator windings being able to come into contact with a hydraulic fluid in the hydraulic chambers The first stator winding has first winding ends which protrude from the first stator member and which extend in the axial direction radially above the stator member, and the second stator winding has second winding ends which protrude from the second stator member and which extend in the axial direction radially above the first stator member and the second stator member.
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公开(公告)号：US12046967B2
公开(公告)日：2024-07-23
申请号：US17611729
申请日：2020-04-22
发明人： Richard Bernauer , Stefan Rieß , Johann Oswald , Michael Menhart
CPC分类号： H02K3/28 , H02K15/064
摘要： A stator for an electric machine, comprising a stator core and a stator winding, wherein the stator core has a plurality of slots, which are spaced apart in a circumferential direction and have a depth running in the radial direction, and allows the arrangement of slot sections of the stator winding in a plurality of radially spaced-apart radial positions, wherein the stator has a strip-like winding unit comprising a first and a second winding conductor, wherein the two winding conductors run in a first and a second layer of the winding unit and each comprises:
a plurality of straight slot sections which run in a transverse direction of the winding unit and are arranged in parallel,
a plurality of first bent end sections which each interconnect two slot sections of the associated winding conductor and are arranged on a first longitudinal side of the winding unit,
a plurality of second bent end sections which each interconnect two slot sections of the associated winding conductor and are arranged on a second longitudinal side of the winding unit, which second longitudinal side is situated opposite the first longitudinal side, wherein,
the first and the second bent end sections each interconnect a slot section of the associated winding conductor in the first layer and a slot section of the associated winding conductor in the second layer,
wherein a first slot section is arranged in a first slot in a first radial position, and a second slot section, which is directly connected to the first slot section by a first end section, is arranged in a second slot in a second radial position which is offset by two radial positions in relation to the first radial position.-
公开(公告)号：US20240204621A1
公开(公告)日：2024-06-20
申请号：US18554564
申请日：2022-03-08
发明人： Stefan Riess , Michael Menhart , Johann Oswald , Carsten Sonntag
摘要： An electric machine for an electric drive train in a motor vehicle including a rotor that is rotatably mounted relative to a stator, the rotor having a rotor shaft with at least one first rotor member which is non-slidably arranged on the rotor shaft for conjoint rotation therewith, the stator having a first stator member and a second stator member which are spaced apart from one another; the first stator member has a first stator winding, and the second stator member has a second stator winding, the first stator winding being arranged within a first hydraulic chamber, and the second stator winding being arranged within a second hydraulic chamber, at least part of the stator windings being able to come into contact with a hydraulic fluid in the hydraulic chambers. The electric machine further including a hydraulic connection element which hydraulically connects the first hydraulic chamber to the second hydraulic chamber; at least one electric conductor of the first stator winding and/or of the second stator winding is arranged within the hydraulic connection element.
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公开(公告)号：US20240195255A1
公开(公告)日：2024-06-13
申请号：US18554563
申请日：2022-04-08
发明人： Michael Menhart , Stefan Riess , Johann Oswald , Carsten Sonntag , Andrä Carotta
摘要： An electric machine comprises a stator, a rotor and an air gap between the stator and the rotor. The stator includes a stator member, a stator winding, an insulating coating between the stator winding and the stator member to provide electric insulation between the stator winding and the stator member, and a local depression in the stator member. The insulating coating is disposed in the local depression. The local depression is located on a side of the stator member facing the air gap.
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6.发明公开公开(公告)号：US20230378836A1
公开(公告)日：2023-11-23
申请号：US18031462
申请日：2021-10-04
发明人： Alexander Keune , Thomas Hurle , Jonas Kniel , Patrick Gramann , Michael Heilmann , Niels Wehlau , Johann Sontheim , Michael Menhart , Johann Oswald
摘要： An electromagnetic element for an electric machine, having multiple slots arranged in the circumferential direction of the electromagnetic element, said slots extending in the axial direction of the electromagnetic element and having an open side in the radial direction. A coil device is arranged in the slots, said coil device having winding heads on (at least) one axial end face of the electromagnetic element, and a cooling channel is formed in the slots in order to dispense heat from the coil device using a fluid. A wall element is also provided which has a first region that is arranged in the region of the winding head in the circumferential direction. and a second region of the wall element, said second region adjoining the first region and having teeth which extend in the axial direction and are arranged on the open side of the slots in the intermediate spaces between the slots in the circumferential direction.
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公开(公告)号：US20220216758A1
公开(公告)日：2022-07-07
申请号：US17611729
申请日：2020-04-22
发明人： Richard Bernauer , Stefan Rieß , Johann Oswald , Michael Menhart
摘要： A stator for an electric machine, comprising a stator core and a stator winding, wherein the stator core has a plurality of slots, which are spaced apart in a circumferential direction and have a depth running in the radial direction, and allows the arrangement of slot sections of the stator winding in a plurality of radially spaced-apart radial positions, wherein the stator has a strip-like winding unit comprising a first and a second winding conductor, wherein the two winding conductors run in a first and a second layer of the winding unit and each comprises:
a plurality of straight slot sections which run in a transverse direction of the winding unit and are arranged in parallel,
a plurality of first bent end sections which each interconnect two slot sections of the associated winding conductor and are arranged on a first longitudinal side of the winding unit,
a plurality of second bent end sections which each interconnect two slot sections of the associated winding conductor and are arranged on a second longitudinal side of the winding unit, which second longitudinal side is situated opposite the first longitudinal side, wherein,
the first and the second bent end sections each interconnect a slot section of the associated winding conductor in the first layer and a slot section of the associated winding conductor in the second layer,
wherein a first slot section is arranged in a first slot in a first radial position, and a second slot section, which is directly connected to the first slot section by a first end section, is arranged in a second slot in a second radial position which is offset by two radial positions in relation to the first radial position.
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