Abstract: An in-wheel motor for a vehicle includes: a stator with a connector attaching the stator to the vehicle, the connector including a shaft, an end plate of a larger diameter than the shaft, and a coolant passage through the end plate, the stator further including a hollow stator body with cylindrical outer surface and mounted to the connector. Cooling channels for circulating liquid coolant extend along the hollow stator body and are in fluid connection with the coolant supply duct, the cooling channels having an inlet for supply of liquid coolant to the plurality of channels and an outlet for discharging liquid coolant from the plurality of channels; wherein, at a side opposite from the connector member, the hollow stator body has an open end with a diameter larger than the diameter of the shaft. Also disclosed is a cooling jacket for such an in-wheel motor.

Abstract: An in-wheel electric motor includes at a vehicle side an elongated connector, a cylindrical stator body connected to the connector and on an outer surface of the stator body equipped with stator windings, a cylindrical rotor body enclosing the stator, and a power electronics device powering the stator windings. The connector is provided with a first opening of a feed channel for coolant and a second opening of a return channel for coolant, each of the feed and return channels being parallel to an axial direction of the connector. The electric motor includes a cooling circuitry with a feed connector and a return connector for coolant, which circuitry includes a coolant supply channel that extends from the feed connector through first the power electronics device and subsequently through a cooling jacket that is situated at the perimeter of the cylindrical stator body and from there to the return connector.

Abstract: An in-wheel electric motor includes at a vehicle side an elongated connector, a cylindrical stator body connected to the connector and on an outer surface of the stator body equipped with stator windings, a cylindrical rotor body enclosing the stator, and a power electronics device powering the stator windings. The connector is provided with a first opening of a feed channel for coolant and a second opening of a return channel for coolant, each of the feed and return channels being parallel to an axial direction of the connector. The electric motor includes a cooling circuitry with a feed connector and a return connector for coolant, which circuitry includes a coolant supply channel that extends from the feed connector through first the power electronics device and subsequently through a cooling jacket that is situated at the perimeter of the cylindrical stator body and from there to the return connector.

Abstract: An in-wheel electric motor includes a stator with at a vehicle side an connector member, a cylindrical hollow stator body connected to the connector member; an outer surface of the stator body being equipped with stator windings, and further including a cylindrical rotor body coaxially enclosing the stator; the electric motor further including a power electronics device for powering the stator windings, wherein the hollow stator body is provided with a stator body opening at a road side of the electric motor for receiving the power electronics device, and the enclosing rotor body is provided with a removable cover plate covering a rotor body opening of the rotor body at the road side and covering the stator body opening.

Abstract: An in-wheel motor for a vehicle includes: a stator with a connector attaching the stator to the vehicle, the connector including a shaft, an end plate of a larger diameter than the shaft, and a coolant passage through the end plate, the stator further including a hollow stator body with cylindrical outer surface and mounted to the connector. Cooling channels for circulating liquid coolant extend along the hollow stator body and are in fluid connection with the coolant supply duct, the cooling channels having an inlet for supply of liquid coolant to the plurality of channels and an outlet for discharging liquid coolant from the plurality of channels; wherein, at a side opposite from the connector member, the hollow stator body has an open end with a diameter larger than the diameter of the shaft. Also disclosed is a cooling jacket for such an in-wheel motor.

Abstract: Disclosed is road vehicle wheel with an in-wheel electric motor that includes a rim configured for mounting at least one tire on the rim; a rim support configured for supporting the rim on a non-rotating wheel part to allow rotation of the rim with respect to the non-rotating wheel part; a stator of the in-wheel electric motor, the stator including electromagnets and being supported on the non-rotating wheel part; and a rotor of the in-wheel electric motor, the rotor including permanent magnets and being supported on the rim support such that any forces exerted on the rim do not act on the rotor. The rim is supported such that any forces exerted on the rim are directly born by the rim support and is not in direct contact with the rotor.

Abstract: Disclosed is road vehicle wheel with an in-wheel electric motor that includes a rim configured for mounting at least one tire on the rim; a rim support configured for supporting the rim on a non-rotating wheel part to allow rotation of the rim with respect to the non-rotating wheel part; a stator of the in-wheel electric motor, the stator including electromagnets and being supported on the non-rotating wheel part; and a rotor of the in-wheel electric motor, the rotor including permanent magnets and being supported on the rim support such that any forces exerted on the rim do not act on the rotor. The rim is supported such that any forces exerted on the rim are directly born by the rim support and is not in direct contact with the rotor.