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公开(公告)号：US20240128822A1
公开(公告)日：2024-04-18
申请号：US18487965
申请日：2023-10-16
申请人： AUDI AG
发明人： Malte LOEPRECHT , Philipp UHLMANN , Lars WETTERAU
摘要： A pole cover is provided for receiving and guiding a winding on a rotor of an electric motor, comprising multiple segments which extend in a radial direction to a center axis of the pole cover, wherein the segments receive a partial region of the winding of the electric motor, and wherein each of the segments includes a winding region to receive the winding and a segment connection region for connecting to other segments, wherein the winding region and the segment connection region border on each other and the segment connection region is situated closer to the center axis than the winding region. The segment connection regions extend at least partially in the circumferential direction about the center axis and each segment connection region protrudes, in the circumferential direction about the center axis, beyond the adjoining winding region. Multiple decoupling regions are also provided, each being situated between two segment connection regions in the circumferential direction about the center axis. An electric motor having such a pole cover and a method for producing a pole cover are also provided.
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公开(公告)号：US11901767B2
公开(公告)日：2024-02-13
申请号：US17744404
申请日：2022-05-13
摘要： A compaction plate for magnetic mass is proposed.
The compaction plate comprises a plurality of laminated magnetic sheets, the laminated magnetic sheets being fixed together with fixing and electric insulating means.-
公开(公告)号：US20240014695A1
公开(公告)日：2024-01-11
申请号：US17867943
申请日：2022-07-19
发明人： GUOYAO WU , DONG CHEN , YUEJUN LUO
摘要： Three-phase asynchronous motor, comprising a housing and a stator assembly, which is fixedly arranged in the housing and is wound with coil, and further comprising a rotating shaft and a plurality of rotor punches, the shape and size of some of the rotor punches are the same, the rotor punches are sleeved and fixed on the rotating shaft, and located in holes of the stator assembly, a plurality of rotor slots are opened on the rotor punches, and shape and size of the all the rotor slots are the same. The rotor slot comprises a first, a second and a third slot portion. The first and the third slot portion are respectively located at both ends of the second slot portion. The first s and the third slot portion are semicircular; the second slot portion is in the shape of an isosceles trapezoid. The application discloses a speed-regulated water pump.
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公开(公告)号：US20230412016A1
公开(公告)日：2023-12-21
申请号：US18326072
申请日：2023-05-31
发明人： Christian KOENEN
摘要： A displacement body for a rotor, wherein the displacement body is configured to be inserted into a slot between two respective rotor teeth, includes a main part, a head part adjoining the main part, and at least one cooling channel, which extends through the displacement body in a depth direction. The head part includes a region flaring towards an outside of the displacement body. The displacement body is configured as a layer stack, which, in the depth direction, includes at least two adjoining layers.
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公开(公告)号：US11837917B2
公开(公告)日：2023-12-05
申请号：US17587516
申请日：2022-01-28
CPC分类号： H02K1/265 , H02K7/1823 , H02K2201/03
摘要： A rotor assembly for an electric machine is disclosed. The rotor core has a cylindrical body defining an outwardly facing peripheral surface comprising a slotted portion including a set of slots defined by a set of rotor teeth projecting outwardly from the peripheral surface. Each rotor tooth comprises a respective first distal tip and a respective first radial length extending radially from a center point of the rotor core to the first distal tip. The peripheral surface further comprises a non-slotted portion defining a respective second radial length, extending radially from the center point of the rotor core to the outwardly facing peripheral surface. The first radial length is less than the second radial length.
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公开(公告)号：US11770035B2
公开(公告)日：2023-09-26
申请号：US17435966
申请日：2020-02-10
发明人： Holger Schunk
摘要： A laminated core for a rotor and/or a stator of a rotating electric machine includes teeth arranged adjacent to one another in a peripheral direction of the laminated core and delimiting slots for accommodating an electrical conductor that forms a winding. A cover unit is arranged on a side of an air gap between the rotor and the stator and delimits the slots in the radial direction. The cover unit has in a region of a respective one of the slots at least two tapering regions which are spaced apart from one another in the peripheral direction of the laminated core, with a material of the cover unit being thinner in the tapering regions in a radial direction of the laminated core than in a region of the cover unit adjoining the tapering regions.
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公开(公告)号：US20230246495A1
公开(公告)日：2023-08-03
申请号：US17587516
申请日：2022-01-28
IPC分类号： H02K1/26
CPC分类号： H02K1/265 , H02K7/1823
摘要： A rotor assembly for an electric machine is disclosed. The rotor core has a cylindrical body defining an outwardly facing peripheral surface comprising a slotted portion including a set of slots defined by a set of rotor teeth projecting outwardly from the peripheral surface. Each rotor tooth comprises a respective first distal tip and a respective first radial length extending radially from a center point of the rotor core to the first distal tip. The peripheral surface further comprises a non-slotted portion defining a respective second radial length, extending radially from the center point of the rotor core to the outwardly facing peripheral surface. The first radial length is less than the second radial length.
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公开(公告)号：US11695304B2
公开(公告)日：2023-07-04
申请号：US17451447
申请日：2021-10-19
发明人： Regina Bach , Boris Dotz
摘要： Rotor for an electrical machine has a rotor core with a plurality of radially outwardly extending rotor legs, a number of exciter windings corresponding to the number of rotor legs, each wound around one of the rotor legs, and a separating device, having a number of separating portions corresponding to the number of rotor legs, which are arranged between a respective pair of adjacent exciter windings and extend axially between two opposing end faces of the rotor, a first annular connecting portion which connects together the separating portions at one of the end faces, and a second annular connecting portion which connects together the separating portions at the other of the end faces. The separating device is formed by a first part and by a second part which are joined together by means of a form-fit and/or force-fit connection, wherein the first part comprises at least the first connecting portion and at least partially the separating portions, and the second part comprises at least the second connecting portion.
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9.发明授权公开(公告)号：US11677286B2
公开(公告)日：2023-06-13
申请号：US17952706
申请日：2022-09-26
摘要： A salient pole machine a rotor having a rotor rim. A plurality of salient poles having a pole winding and extending in the radial direction are attached to the rotor rim, with the rotor rim having an outermost radial surface between the pole-rim interfaces. A plurality of axial rib-like rim extensions project radially from the outermost radial surface of the rotor rim with a predetermined circumferential distance between neighboring rim extensions. A plurality of axial pole grooves in the salient pole match and receive the rim extensions. Fixing elements fix the rim extensions in the pole grooves and are inserted axially into facing interface holes defined in facing sidewalls of the pole grooves and the rib-like rim extensions. The fixing elements are radially inward of the pole windings and are accessible for axial sliding removal from the facing interface holes.
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公开(公告)号：US11646614B2
公开(公告)日：2023-05-09
申请号：US17438935
申请日：2019-06-05
发明人： Norihiko Hana , Masao Akiyoshi , Yosuke Uchida
摘要： In a rotor of a rotating electric machine, a slot includes a winding insertion portion and a widened portion. A width dimension of the widened portion is larger than a width dimension of the winding insertion portion. A pair of step portions are formed on both sides of an end portion of the winding insertion portion on the widened portion side. A wedge member is spaced from and opposed to the pair of step portions. An insulation includes: an insulation main body arranged between a rotor winding and a damper bar; and an extended portion, which is arranged in at least a part of a space between the wedge member and the pair of step portions, and is configured to suppress movement of the damper bar in a circumferential direction of a rotor core.
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