Presented are oleophobic surface treatments for electric machines, methods for making/using such electric machines, and vehicles employing traction motors having oleophobic treatments on select “non-target” surfaces. An electric machine includes a direct-cooling thermal management system that circulates a coolant fluid to the electric machine's outer housing. A stator assembly, which is attached to the housing, includes a stator core with one or more electromagnetic windings mounted to the stator core. A rotor assembly is rotatably mounted to the hosing adjacent the stator assembly. The rotor assembly includes a rotor core with one or more magnets mounted to the rotor core and spaced across an air gap from the winding(s). Select components of the outer housing, rotor assembly, and/or stator assembly have a target surface with an oleophobic surface treatment that reduces the non-target surface's wetted area and decreases the mass of coolant fluid contacting the non-target surface.

An apparatus for generating a layout for an additive manufacturing of an electric drive for a disc rotor. The disc rotor is adapted for being driven by a magnetic field. The apparatus comprises an input module configured to receive one or more input parameters. The apparatus further comprises a generating module configured to generate, from the one or more input parameters, a layout of a plurality of coil structures, wherein the plurality of coil structures is adapted to generate the magnetic field by an electric current, and a layout of a control structure, wherein the control structure is adapted to connect the plurality of coil structures with a connector for a supply of the electric current, and to distribute the electric current to the plurality of coil structures in order to drive the disc rotor.

An apparatus for generating a layout for an additive manufacturing of an electric drive for a disc rotor. The disc rotor is adapted for being driven by a magnetic field. The apparatus comprises an input module configured to receive one or more input parameters. The apparatus further comprises a generating module configured to generate, from the one or more input parameters, a layout of a plurality of coil structures, wherein the plurality of coil structures is adapted to generate the magnetic field by an electric current, and a layout of a control structure, wherein the control structure is adapted to connect the plurality of coil structures with a connector for a supply of the electric current, and to distribute the electric current to the plurality of coil structures in order to drive the disc rotor.

A stator structure is provided and includes a plurality of first lamination layers, a plurality of second lamination layers, two third lamination layers and two oil spraying rings. The second lamination layers are sandwiched in between the first lamination layers. The second lamination layer located in the middle of the stator structure is sandwiched in between the two third lamination layers. The two oil spraying rings are connected to two first lamination layers located at outermost sides. Another stator structure is provided and includes a plurality of first lamination layers, a second lamination layer and two oil spraying rings. The second lamination layer is sandwiched in between two first lamination layers. The two oil spraying rings are connected to two first lamination layers located at outermost sides. By means of the arrangement of the aforesaid stator structure, the invention can effectively improve heat dissipating effect for oil cooling.

A claw-pole motor having a rotor assembly orientated about a longitudinal axis, a stator assembly having a first plurality of stator teeth and a second plurality of stator teeth orientated radially about the longitudinal axis and extending axially in opposite directions to each other and alternating about the longitudinal axis, a first gap in the stator assembly orientated about the longitudinal axis, a second gap orientated about the longitudinal axis and extending both axially and radially between the first plurality of stator teeth and the second plurality of stator teeth, first electromagnetic windings disposed in the first gap and second electromagnetic windings disposed in the second gap, the first and second windings configured to be selectively energized to exert a torque on the rotor assembly.

A hybrid module comprising a housing, a torque converter, and a resolver assembly is provided. The torque converter comprises a turbine having a turbine shell including at least one blade attached thereto; an impeller having an impeller shell including at least one blade attached thereto; and an impeller hub attached to a radially extending end of the impeller shell. The resolver assembly comprises a rotor connected to an outer surface of the impeller hub and a stator connected to the housing.

A hybrid module comprising a housing, a torque converter, and a resolver assembly is provided. The torque converter comprises a turbine having a turbine shell including at least one blade attached thereto; an impeller having an impeller shell including at least one blade attached thereto; and an impeller hub attached to a radially extending end of the impeller shell. The resolver assembly comprises a rotor connected to an outer surface of the impeller hub and a stator connected to the housing.

A rotor assembly for a permanent magnet motor includes a rotor stack of laminated ferromagnetic layers and partial end plates at opposite axial ends of the rotor stack wherein each axial end of the rotor bears two partial end plates, each of which covers a partial circle and does not axially overlap with the other one of the partial end plates at the same axial end. The two partial end plates of each axial end are formed by a first axial end plate shaped as a first partial ring disc and a second partial end plate shaped as a second partial ring disc that are made of stamped metal and that are of different mass.

A rotor assembly for a permanent magnet motor includes a rotor stack of laminated ferromagnetic layers and partial end plates at opposite axial ends of the rotor stack wherein each axial end of the rotor bears two partial end plates, each of which covers a partial circle and does not axially overlap with the other one of the partial end plates at the same axial end. The two partial end plates of each axial end are formed by a first axial end plate shaped as a first partial ring disc and a second partial end plate shaped as a second partial ring disc that are made of stamped metal and that are of different mass.

A transportation tooling structure, a split electric motor module with the transportation tooling structure, and a transportation method are provided. The transportation tooling structure comprises: a split base plate, a stator support and a rotor support, wherein the lower end of the stator support is fixedly supported on the upper surface of the split base plate, and the upper end of the stator support is fixedly supported on the side of a split stator close to the split base plate; and the upper end of the rotor support is fixedly supported on the side of an end of a split rotor away from the split stator, and the lower end of the rotor support is fixedly supported on the side of the split stator away from the split base plate.