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US 12,224,639 B2Granted
Rotor for an externally excited synchronous machine
AssigneeAudi AG
InventorsMartin Gerngroß, Lars Wetterau
Life of this patent
Estimating the term…
Abstract
A star disc has integrated current busbars for the interconnecting of rotor windings. A rotor may comprise the star disc, and a method may comprise producing the rotor.
Claims10
A star disc for a rotor of an externally excited synchronous machine, comprising:
- a surface of the star disc that is formed of plastic, in which current busbars are embedded,
- the current busbars connecting in electrically conductive manner a pole shoe or a groove of the star disc to an adjacent pole shoe or an adjacent groove of the star disc, and
- the current busbars extending to a radially outward free end of a respective pole of the star disc opposite a base end of the pole and including, at their two ends respectively, a contacting element to receive a winding wire protruding from the surface of the star disc.
A rotor of an externally excited synchronous machine, comprising:
- two star discs, which are arranged on a rotor axis at opposite end faces of a laminated stack of the rotor,
- wherein at least one of the two star discs is a star disc including:
- a surface of the star disc that is formed of plastic, in which current busbars are embedded,
- the current busbars connecting in electrically conductive manner a pole shoe or a groove of the star disc to an adjacent pole shoe or an adjacent groove of the star disc, and
- the current busbars extending to a radially outward free end of a respective pole of the star disc opposite a base end of the pole and including, at their two ends respectively, a contacting element to receive a winding wire protruding from the surface of the star disc.
2 more elements
A method for producing a rotor of an externally excited synchronous machine, comprising:
- arranging two star discs at opposite end faces of a laminated stack of the rotor, and
- winding the poles of the star discs and the laminated stacks with a winding wire to form a trapezoidally orthocyclic winding,
- wherein at least one of the two star discs is a star disc including:
- a surface of the star disc that is formed of plastic, in which current busbars are embedded;
- the current busbars connecting in electrically conductive manner a pole shoe or a groove of the star disc to an adjacent pole shoe or an adjacent groove of the star disc, and
- the current busbars extending to a radially outward free end of a respective pole of the star disc opposite a base end of the pole and including, at their two ends respectively, a contacting element to receive a winding wire protruding from the surface of the star disc.
3 more elements
Dependencies are inferred from the claim text.