Rotor for a rotary electrical machine comprising grooves for magnets
AssigneeValeo Equipements Electriques Moteur
InventorsStéphane Rigaud, Marc Tunzini
Life of this patent
Estimating the term…
Abstract
A rotor for an electrical machine that comprises two parallel magnet wheels, each of which comprises axial teeth so that each tooth on a wheel is situated in the space existing between two consecutive teeth on the other wheel, and that comprises magnetic elements, each arranged between two adjacent teeth and partly received in a groove produced in each of the opposite lateral faces of the two adjacent teeth. In one embodiment, each of the two adjacent teeth comprises one groove at a maximum, which emerges at the base of the first tooth.
Claims19
A rotor for a rotary electrical machine that comprises two parallel magnet wheels that extend radially with respect to a principal axis of the rotor, each of which comprises a series of axial teeth, roughly trapezoidal in shape, comprising a base and a tip, that extend axially from the external radial end edge of said magnet wheel, in the direction of the other magnet wheel, so that each tooth on a magnet wheel is situated in the space existing between two consecutive teeth on the other magnet wheel, and that comprise magnetic elements, each of which is arranged between two adjacent teeth each belonging to one of the two magnet wheels, and is received partly in a groove produced in each of the opposite lateral faces of said two adjacent teeth,
- wherein one of said grooves produced in one of said two adjacent teeth emerges at said base of said tooth and the other of said grooves produced in an opposite lateral face of said adjacent tooth faces said groove emerging at said base of said tooth and emerges at a tip of said adjacent tooth:
- wherein each of said two adjacent teeth comprises at most one groove at a maximum which emerges at its base.
A rotor for a rotary electrical machine that comprises two parallel magnet wheels that extend radially with respect to a principal axis of the rotor, each of which comprises a series of axial teeth, roughly trapezoidal in shape, comprising a base and a tip, that extend axially from the external radial end edge of said magnet wheel, in the direction of the other magnet wheel, so that each tooth on a magnet wheel is situated in the space existing between two consecutive teeth on the other magnet wheel, and that comprise magnetic elements, each of which is arranged between two adjacent teeth each belonging to one of the two magnet wheels, and is received partly in a groove produced in each of the opposite lateral faces of said two adjacent teeth,
- wherein each of said two adjacent teeth comprises one groove at a maximum, which emerges at the base of a tooth;
- wherein the two lateral faces of a first tooth each comprise a groove;
- wherein a first one of the two grooves that are produced in the two lateral faces of the first tooth emerges at the base of the first tooth, and the second one of said two grooves that are produced in the two lateral faces of the first tooth emerges at the tip of the first tooth.
A rotor for a rotary electrical machine that comprises two parallel magnet wheels that extend radially with respect to a principal axis of the rotor, each of which comprises a series of axial teeth, roughly trapezoidal in shape, comprising a base and a tip, that extend axially from the external radial end edge of said magnet wheel, in the direction of the other magnet wheel, so that each tooth on a magnet wheel is situated in the space existing between two consecutive teeth on the other magnet wheel, and that comprise magnetic elements, each of which is arranged between two adjacent teeth each belonging to one of the two magnet wheels, and is received partly in a groove produced in each of the opposite lateral faces of said two adjacent teeth,
- wherein each of said two adjacent teeth comprises one groove at a maximum, which emerges at the base of a tooth;
- wherein the two grooves that are produced in the opposite faces of the two adjacent teeth and that receive the same magnetic element both emerge at the same axial end of the rotor;
- wherein all the grooves that are able to receive a magnetic element that is situated between a tooth on a first magnet wheel and a tooth on a second magnet wheel that is situated angularly upstream of said tooth on the first magnet wheel emerge at a first axial end of the rotor, and in that all the grooves that are able to receive a magnetic element that is situated between a tooth on a first magnet wheel and a tooth on the second magnet wheel that is situated angularly downstream of said tooth on the first magnet wheel emerge at a second axial end of the rotor.
Dependencies are inferred from the claim text.