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公开(公告)号：US12009723B2
公开(公告)日：2024-06-11
申请号：US17448322
申请日：2021-09-21
发明人： Steven Vanhee , Joachim Druant , Thibault Devreese , Luke Miller
摘要： Systems and methods for cooling an electric motor in an electric drive unit are provided. In one example, the electric drive unit includes electric motor with a housing with a water jacket arranged therein, a stator that includes a plurality of stator laminations positioned within the housing, and an oil inlet mounted to and extending through the housing. The plurality of stator laminations includes a radial opening that is designed to receive oil from the oil inlet and direct oil to one or more oil ducts that axially extend through at least a portion of the plurality of stator laminations.
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公开(公告)号：US11799362B2
公开(公告)日：2023-10-24
申请号：US17448190
申请日：2021-09-20
发明人： Thibault Devreese , Steven Vanhee , Joachim Druant
CPC分类号： H02K9/193 , B60K11/02 , H02K2209/00
摘要： Various methods and systems are provided for a system for cooling an electric motor. The cooling system includes a primary coolant passage through a rotor shaft linked to a plurality of secondary passages though lamination stacks of a rotor configured to receive coolant at a central region of the lamination stacks.
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公开(公告)号：US12046955B2
公开(公告)日：2024-07-23
申请号：US17651230
申请日：2022-02-15
发明人： Steven Vanhee , Joachim Druant , Thibault Devreese , Carl Trudel , Luke Miller , Jaywant S. Pawar
摘要： Methods and systems are provided to cool an electric machine. In one embodiment, an electric machine includes a rotor assembly that includes a rotor shaft and a stack of rotor laminations. The rotor assembly further includes one or more nozzles designed to receive pressurized coolant from a rotor shaft coolant passage and deliver the coolant to a set of open coolant channels in the stack of rotor laminations, wherein the set open coolant channels includes outlets that are profiled to direct the coolant towards a groove in a balancing plate that is coupled to the rotor assembly.
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公开(公告)号：US11942825B2
公开(公告)日：2024-03-26
申请号：US17574471
申请日：2022-01-12
发明人： Joachim Druant , Steven Vanhee , Thibault Devreese
摘要： Systems and methods for cooling an electric motor in an electric drive unit are provided. In one example, the electric motor includes a stator and an inverter power module positioned within a motor housing. The inverter power module forms an interface with a peripheral surface of an outer section of stator laminations of the stator, and the stator laminations include a plurality of cutouts forming axially extending oil ducts.
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公开(公告)号：US11870302B2
公开(公告)日：2024-01-09
申请号：US17445585
申请日：2021-08-20
发明人： Joachim Druant , Steven Vanhee
CPC分类号： H02K1/148 , H02K16/00 , H02K21/12 , H02P25/188
摘要： Methods and systems are provided for operating an electric motor including multiple rotor and stator sections. In one example, a system may include the multiple rotor sections configured to be mechanically coupled and decoupled from each other concurrently with multiple stator sections configured to be electrically coupled and decoupled from each other, within certain regimes of operation of the electric motor.
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