Disclosed are magnetic rotors systems and methods for heating a substrate. The magnetic rotor includes a rotor body and at least one magnet supported on the rotor body. The rotor body is rotatable about an axis. The rotor body also defines a chamber that selectively receives a coolant within the chamber.

Disclosed are magnetic rotors systems and methods for heating a substrate. The magnetic rotor includes a rotor body and at least one magnet supported on the rotor body. The rotor body is rotatable about an axis. The rotor body also defines a chamber that selectively receives a coolant within the chamber.

A planar member for a stator stack comprises a stator yoke defining a central longitudinal axis, a first surface facing radially outward, and a second surface facing radially inward, a tooth extending radially inwards from the second surface, a first tooth tip extending circumferentially from a radially inward end of the tooth, a second tooth tip extending circumferentially from the radially inward end of the tooth, a first slot portion defined between the first tooth tip and the second surface, a second slot portion defined between the second tooth tip and the second surface, and a slot cooling fin extending radially from the stator yoke into the first slot portion.

A planar member for a stator stack comprises a stator yoke defining a central longitudinal axis, a first surface facing radially outward, and a second surface facing radially inward, a tooth extending radially inwards from the second surface, a first tooth tip extending circumferentially from a radially inward end of the tooth, a second tooth tip extending circumferentially from the radially inward end of the tooth, a first slot portion defined between the first tooth tip and the second surface, a second slot portion defined between the second tooth tip and the second surface, and a slot cooling fin extending radially from the stator yoke into the first slot portion.

A drive device includes a motor and an inverter. A motor axis is parallel to an output axis. The inverter is located in a second direction orthogonal to a first direction with respect to the motor axis and extends in a third direction orthogonal to the first and second directions. When viewed from the first direction, a virtual straight line passing through the axes extends in the third direction. An inverter housing portion overlaps the axes when viewed from the second direction, and has a boundary wall on the virtual straight line side in the second direction. In the second direction, a distance between the boundary wall and the output axis is smaller than a distance between the boundary wall and the motor axis. A motor side connection portion has a portion closer to the side opposite to the output axis than the motor axis in the third direction.

A drive device includes a motor and an inverter. A motor axis is parallel to an output axis. The inverter is located in a second direction orthogonal to a first direction with respect to the motor axis and extends in a third direction orthogonal to the first and second directions. When viewed from the first direction, a virtual straight line passing through the axes extends in the third direction. An inverter housing portion overlaps the axes when viewed from the second direction, and has a boundary wall on the virtual straight line side in the second direction. In the second direction, a distance between the boundary wall and the output axis is smaller than a distance between the boundary wall and the motor axis. A motor side connection portion has a portion closer to the side opposite to the output axis than the motor axis in the third direction.

A cooling-channel integrated motor housing includes a motor housing, a plurality of stator cores press-fitted into the motor housing, and a cooling pipe inserted into the motor housing and disposed in a circumferential direction of a circle along which the stator cores are arranged. The 1cooling pipe is disposed to overlap with the stator cores in a direction perpendicular to a direction in which a rotating shaft of a motor extends.

A cooling-channel integrated motor housing includes a motor housing, a plurality of stator cores press-fitted into the motor housing, and a cooling pipe inserted into the motor housing and disposed in a circumferential direction of a circle along which the stator cores are arranged. The 1cooling pipe is disposed to overlap with the stator cores in a direction perpendicular to a direction in which a rotating shaft of a motor extends.

A rotation device includes a rotor; an inlet flow passage that guides a cooling medium toward the outside in a radial direction of the rotor; an axial flow passage that is connected to the inlet flow passage and guides the cooling medium along a rotation axis of the rotor; and an outlet flow passage that is connected to the axial flow passage and guides the cooling medium toward the inside in the radial direction of the rotor. In addition, an outlet of the outlet flow passage is provided on the outside in the radial direction of an inlet of the inlet flow passage in the rotor.

A rotation device includes a rotor; an inlet flow passage that guides a cooling medium toward the outside in a radial direction of the rotor; an axial flow passage that is connected to the inlet flow passage and guides the cooling medium along a rotation axis of the rotor; and an outlet flow passage that is connected to the axial flow passage and guides the cooling medium toward the inside in the radial direction of the rotor. In addition, an outlet of the outlet flow passage is provided on the outside in the radial direction of an inlet of the inlet flow passage in the rotor.