An assembly comprises an AC (alternating current) housing connection block and a plurality of inserts seated in the AC housing connection block, wherein for each of the inserts, an interface between the insert and the housing is continuous. A method includes inserting a plurality of inserts into a mold; and molding an AC (alternating current) housing connection block.

A permanent magnet machine with a hybrid cage and methods for operating same are disclosed. According to one aspect, the subject matter described herein includes a rotor and hybrid cage for an electrical machine, the rotor comprising a rotor body having a central axis and including a plurality of permanent magnets positioned to create a plurality of rotor magnetic poles distributed around a peripheral surface of the rotor. The rotor also includes a hybrid cage that includes conductive loops around each of the rotor magnetic poles, where the conductive loops are controllable to form a closed circuit or an open circuit around each of the rotor magnetic poles. A closed circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is present, such as during a fault condition, and an open circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is not present, such as during normal operation.

A resistor pack assembly comprising: a positive rail having a circular face; a negative rail having an inner circular face and an outer circular face located radially outward from inner circular face; an insulator ring having a first circular face and a second circular face opposite first circular face, the second circular face contacts the outer circular face of the negative rail; a first DC bus bar electrically connected to the insulator ring; a second DC bus bar electrically connected to negative rail; and a cylindrical suppression resistor having a first flat surface and a second flat surface opposite the first flat surface, the cylindrical suppression resistor is located radially inward of the insulator and axially between the positive rail and negative rail, wherein the first flat surface contacts the circular face of the positive rail and the second flat surface contacts the inner circular face of the negative rail.

A wheel hub motor is disclosed herein for installation in a wheel of a vehicle. It comprises a ring-shaped casing having a first end and a second end, a stator unit disposed in the ring-shaped casing and having a stator base and a stator ring disposed on the stator base, a rotor unit disposed in the ring-shaped casing and having a rotor base connected at the second end of the ring-shaped casing and plural permanent magnetic sheets disposed on the rotor base for corresponding to the stator ring, a shell cover connected at the first end of the ring-shaped casing, and a major axis for connecting a car body of the vehicle.

A wheel hub motor is disclosed herein for installation in a wheel of a vehicle. It comprises a ring-shaped casing having a first end and a second end, a stator unit disposed in the ring-shaped casing and having a stator base and a stator ring disposed on the stator base, a rotor unit disposed in the ring-shaped casing and having a rotor base connected at the second end of the ring-shaped casing and plural permanent magnetic sheets disposed on the rotor base for corresponding to the stator ring, a shell cover connected at the first end of the ring-shaped casing, and a major axis for connecting a car body of the vehicle.

The hollow rotor shaft for a rotating electrical machine includes two parts. A first part includes a first hollow cylindrical element and a second part includes a second hollow cylindrical element, whereby sections of a first end of the first and second elements are in contact and secured by securing means.

A rotating electric machine includes a machine main body, a frame member and a rectifier. The machine main body is configured to generate alternating current. The frame member holds the machine main body. The rectifier is provided axially outside the frame member and has a rectification circuit configured to rectify the alternating current generated in the machine main body into direct current. The rectifier includes first and second heat sinks that are located to axially overlap each other, first rectifying elements mounted to the first heat sink and constituting an upper arm of the rectification circuit, and second rectifying elements mounted to the second heat sink and constituting a lower arm of the rectification circuit. The second heat sink is located closer than the first heat sink to the frame member. The surface area of the second heat sink is greater than the surface area of the first heat sink.

A rotating electric machine includes a machine main body, a frame member and a rectifier. The machine main body is configured to generate alternating current. The frame member holds the machine main body. The rectifier is provided axially outside the frame member and has a rectification circuit configured to rectify the alternating current generated in the machine main body into direct current. The rectifier includes first and second heat sinks that are located to axially overlap each other, first rectifying elements mounted to the first heat sink and constituting an upper arm of the rectification circuit, and second rectifying elements mounted to the second heat sink and constituting a lower arm of the rectification circuit. The second heat sink is located closer than the first heat sink to the frame member. The surface area of the second heat sink is greater than the surface area of the first heat sink.

A field winding type rotary machine includes a stator having a stator core and a stator coil wound on the stator core, a rotor having a rotor core and a rotor field coil wound on the rotor core, and a rectifier element connected between both ends of the rotor field coil. The field winding type rotary machine includes a capacitor having a first terminal connected to an anode terminal of the rectifier element and a second terminal connected to any point of the rotor field coil.

A field winding type rotary machine includes a stator having a stator core and a stator coil wound on the stator core, a rotor having a rotor core and a rotor field coil wound on the rotor core, and a rectifier element connected between both ends of the rotor field coil. The field winding type rotary machine includes a capacitor having a first terminal connected to an anode terminal of the rectifier element and a second terminal connected to any point of the rotor field coil.