Rotor body for the rotor of an electric machine and a method for the manufacture of a rotor body
OwnerWilli Hauger, Helmut Hansinventors
Life of this patent
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Abstract
A rotor body for the rotor of an electric machine having at least one rotor lamination which is formed in the way of a strip having a series of projections along a longitudinal edge of the strip and bent in the plane of the strip to form a ring, the projections extending inwards after the rotor lamination has been bent and the rotor lamination having a substantially unbroken outside edge.
Claims17
A rotor body for the rotor of an electric machine having
- at least one rotor lamination (12, 14) which is formed in the way of a strip having a series of projections (16) along a longitudinal edge (11) of the strip and bent in the plane of the strip to form a ring, the projections (16) extending inwards after the rotor lamination (12, 14) has been bent and the rotor lamination having a substantially unbroken outside edge (13).
A rotor of an electric machine having a shaft (38) and a rotor body (40) comprising at least one rotor lamination (12, 14) which is formed in the way of a strip having a series of projections (16) along a longitudinal edge (11) of the strip and bent in the plane of the strip to form a ring, the projections (16) extending inwards after the rotor lamination (12, 14) has been bent and the rotor lamination having a substantially unbroken outside edge (13), wherein the rotor body (40) is wound about the shaft (38;
- 52), that the shaft (38;
- 52) has splines (54;
- 56) on its outside circumference and the projections (16) of the rotor body (40) engage with the splines (54;
- 56) of the shaft (38;
- 52).
A method for the manufacture of a rotor body for the rotor of an electric machine having the following procedural steps:
- Providing at least one rotor lamination (12, 14) that is formed in the way of a strip having a series of projections (16) along the longitudinal edge (11) of the strip (12, 14);
- Bending the rotor lamination (12, 14) in the plane of the strip to form a ring, the projections (16) extending inwards after bending and the ring having a substantially unbroken outside edge.
A method for the manufacture of the rotor of an electric machine having a shaft (38;
- 52) and a rotor body that is manufactured by the steps:
- providing at least one rotor lamination (12, 14) that is formed in the way of a strip having a series of projections (16) along the longitudinal edge (11) of the strip (12, 14);
- bending the rotor lamination (12, 14) in the plane of the strip to form a ring, the projections (16) extending inwards after bending and the ring having a substantially unbroken outside edge
- wherein splines (54;
- 56) are formed on the outside circumference of the shaft (38;
- 52) and the rotor body is wound about the shaft (38;
- 52), the projections (16) of the rotor body engaging into the splines (54;
- 56) of the shaft (38;
- 52).
Dependencies are inferred from the claim text.