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公开(公告)号：US20240333103A1
公开(公告)日：2024-10-03
申请号：US18703793
申请日：2022-10-13
申请人： AUDI AG
CPC分类号： H02K9/193 , H02K7/006 , H02K9/197 , H02K2209/00
摘要： A coolant supply system for a drive device of an electrically operated vehicle axle of a two-track vehicle with an electric machine. The coolant supply system has an electric machine hydraulic circuit in which a coolant tank, the interior of a cylindrical stator housing and a stator housing sump are integrated, in which the coolant draining from the stator housing collects, which can be returned from there to the coolant tank by at least one return pump. The stator housing sump has a suction point on each of its axially opposite axial sides, from which the coolant can be sucked off by the return pump.
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公开(公告)号：US12081107B2
公开(公告)日：2024-09-03
申请号：US17048836
申请日：2019-04-09
申请人： RENAULT s.a.s.
发明人： Eric Dumas , Francois Paris
摘要： A cooling device for cooling an electric machine of a motor vehicle includes a reservoir and a circuit fluidically connected to the reservoir. The reservoir is intended to be situated radially between a housing of the electric machine and a stator of the electric machine, with respect to an axis of the electric machine.
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公开(公告)号：US12034359B2
公开(公告)日：2024-07-09
申请号：US18089360
申请日：2022-12-27
摘要： A rotary electric machine includes a stator extending along an axis and having teeth arranged about the axis. The teeth are circumferentially spaced apart by slots. Conductors extend around the teeth and through the slots. The conductors are electrically connected to one another to form phases. Cooling devices are provided in the slots. Each cooling device is fluidly connected to an inlet tube for supplying cooling fluid to the cooling device and an outlet tube for removing cooling fluid from the cooling device. A manifold includes a first cooling channel fluidly connected to each inlet tube and a second cooling channel fluidly connected to each outlet tube such that all the cooling devices in the machine are fluidly connected in parallel.
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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：US20240146156A1
公开(公告)日：2024-05-02
申请号：US18496628
申请日：2023-10-27
发明人： Steven VANHEE , Jaywant S. PAWAR
CPC分类号： H02K9/197 , H02K9/193 , H02K2209/00
摘要： Systems and methods for electric machine cooling. The electric machine, in one example, includes a cooling assembly with a coolant inlet that flows coolant into a first sealed chamber that is formed around end windings on a first axial side of the electric machine. The cooling assembly further includes a coolant outlet that receives coolant from a second sealed chamber that is formed around end windings on a second axial side of the electric machine and a coolant channel extending through a stator core and in fluidic communication with the coolant inlet and the coolant outlet.
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公开(公告)号：US20240136876A1
公开(公告)日：2024-04-25
申请号：US18400968
申请日：2023-12-29
发明人： Guangquan ZHANG , Lei TANG , Liang PENG
IPC分类号： H02K1/2795 , H02K1/20 , H02K5/20 , H02K9/19 , H02K9/197
CPC分类号： H02K1/2795 , H02K1/20 , H02K5/203 , H02K9/19 , H02K9/197
摘要： A cooling system includes a housing. A bottom of the housing has an installation position for installing a stator iron core. The cooling system further includes: an oil inlet cavity and an oil return cavity, an oil inlet and an oil outlet provided on an outer wall of the housing, an oil spraying hole and an oil return hole provided on an inner wall of the housing, and a plurality of oil diverting grooves provided at the bottom of the housing. The oil diverting grooves penetrate through the installation position. A stator component includes a stator iron core and the cooling system. An axial magnetic field motor includes the stator component.
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公开(公告)号：US11967878B2
公开(公告)日：2024-04-23
申请号：US17299622
申请日：2019-12-11
申请人： JHEECO E-DRIVE AG
摘要： The invention relates to a cooling channel for a winding head of an electric machine, where the cooling channel is formed to be annular for guiding a cooling fluid with at least one inflow and at least one outflow and for being arranged around the winding head With the aim of an improved sealing property, the cooling channel comprises an axially movable pressing member which is arranged such that a cooling fluid can flow onto the pressing member and a pressing force against the cooling channel can be generated.
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公开(公告)号：US11936281B2
公开(公告)日：2024-03-19
申请号：US17183849
申请日：2021-02-24
发明人： Jun Takagi
CPC分类号： H02K9/197 , H02K7/1815 , F02B63/042
摘要： A generator cooling structure of an engine including a crankshaft and a generator arranged on one end side of the crankshaft includes a crankcase that houses the crankshaft and a generator cover that is coupled to the crankcase in order to house the generator. The generator has a rotor fixed to the crankshaft and a stator fixed in position with respect to the generator cover. A cooling medium supply passage, which is arranged in the direction of the one end side of the crankshaft in the stator in order to supply the cooling medium to the stator, is provided.
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公开(公告)号：US11885312B2
公开(公告)日：2024-01-30
申请号：US18020704
申请日：2021-08-10
申请人： Flender GmbH
发明人： Claus Teringl , Michael Winklhofer
CPC分类号： F03D9/25 , H02K1/20 , H02K3/345 , H02K9/197 , F05B2220/706 , H02K3/24 , H02K15/105
摘要： A wind turbine includes a dynamoelectric machine including a liquid-cooled stator and a rotor interacting with one another. The stator includes a magnetically conductive body and a winding system which is embedded in slots of the magnetically conductive body and which includes a main insulation arranged between a conductor of the winding system and a slot wall and including at least one recess provided in a cooling-channel impression of the main insulation to form at least one axial cooling channel extending between the main insulation and the slot wall, so that the at least one cooling channel borders the slot wall without insulation in direct contact with the slot wall. The winding system includes end windings which are also liquid-cooled. A can separates the stator and the rotor from one another and enables different cooling media for the stator and the rotor.
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公开(公告)号：US11884409B2
公开(公告)日：2024-01-30
申请号：US17515934
申请日：2021-11-01
摘要： Aircraft electric motors include a motor unit having a rotor and a stator. The stator includes a plurality of windings and cooling channels arranged to provide cooling thereto. A drive unit is configured to drive operation of the motor unit. A cooling system includes a working fluid arranged within a cooling fluid flow path, wherein the cooling fluid flow path includes a liquid cooling path configured to direct flow of the working fluid through, at least, the cooling channels of the motor unit and a vapor cooling path configured to direct flow of the working fluid through the drive unit and a separator arranged upstream of each of the liquid cooling path and the vapor cooling path and configured to direct a liquid portion of the working fluid into the liquid cooling path and configured to direct a vapor portion of the working fluid into the vapor cooling path.
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