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公开(公告)号：US20190296614A1
公开(公告)日：2019-09-26
申请号：US15926410
申请日：2018-03-20
发明人： Chun Tang , Feng Liang , Wei Wu , Michael W. Degner
摘要： An electric machine assembly including a stator core and a rotor is provided. The stator core defines a cavity. The rotor is sized for insertion within the cavity and defines a plurality of magnet pockets each sized to receive a magnet in a central pocket region between an outer pocket region and an inner pocket region. The inner pocket region is a receptacle for coolant to thermally communicate with the magnet. The outer pocket region may be filled with an epoxy to prevent fluid communication between the outer pocket region and the central pocket region. The magnet may be sized such that there is no gap between the magnet and edges of the central pocket region.
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公开(公告)号：US20190273407A1
公开(公告)日：2019-09-05
申请号：US15909122
申请日：2018-03-01
发明人： Alfredo R. Munoz , Feng Liang , Michael Degner , Wei Wu , Chun Tang
IPC分类号： H02K1/27
摘要： A rotor for an electric machine assembly including a rotor mount region and a plurality of magnet pockets is provided. The rotor mount region may extend radially about a shaft through-hole. Each of the plurality of magnet pockets may be defined within the rotor mount region. Each magnet pocket may include a central pocket region between an outer pocket region and an inner pocket region. The central pocket region may be sized to receive a magnet having a wedge shape. The central pocket region and the magnet may each have a first side offset at an angle relative to a second side. The outer pocket region may define an outcropped portion extending into the central pocket region. A length of the magnet may be greater than a length between an edge of the magnet adjacent the inner pocket region and an edge of the outcropped portion adjacent the central pocket region.
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公开(公告)号：US20180175681A1
公开(公告)日：2018-06-21
申请号：US15379658
申请日：2016-12-15
发明人： Chun Tang
摘要： A vehicle may include an electric machine. The electric machine may include a stator surrounding sections stacked to form a rotor. Each of the sections may have nested pairs of permanent magnets radially spaced from a rotational axis of the rotor. Corresponding pairs of permanent magnets of each of the sections may be aligned along a direction of the rotational axis. Corresponding chambers adjacent to the permanent magnets may have different shapes such that corresponding pole arc angles are different.
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