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US 6,888,287 B2Granted
Apparatus for securement of a winding assembly
AssigneeSiemens Aktiengesellschaft
InventorGerhard Dressel
Life of this patent
Estimating the term…
Abstract
Apparatus for fastening a winding assembly disposed at least partially in an air gap between a stator yoke and a rotor of an electric machine, includes a main body made of electrically insulating non-magnetic material. The main body includes a cylindrical base and a plurality of axial webs projecting radially outwards from the base in a direction of the stator yoke for at least partial engagement in complementary recesses in the stator yoke.
Claims18
An electric machine, comprising:
- stator yoke;
- a rotor spaced from the stator yoke at formation of an air gap therebetween;
- a winding assembly disposed at least partially in the air gap and having winding ends which form winding overhangs;
- and
- a fastening apparatus for securing the winding assembly, wherein the fastening apparatus includes a main body made of electrically insulating nonmagnetic material, said main body defined by an axis and including a cylindrical base and a plurality of webs extending in the direction of the axis and projecting radially outwards from the base in a direction of the stator yoke for at least partial engagement in complementary recesses in the stator yoke;
- wherein the stator yoke projects at least axially over the winding overhangs located at an end face of the electric machine.
3 more elements
An electric machine comprising:
- a stator yoke:
- a rotor spaced from the stator yoke at formation of an air gap therebetween;
- a winding assembly disposed at least partially in the air gap and having winding ends which form winding overhangs;
- and
- a fastening apparatus for securing the winding assembly, wherein the fastening apparatus includes a main body made of electrically insulating non-magnetic material, said main body defined by an axis and including a cylindrical base and a plurality of webs extending in the direction of the axis and protecting radially outwards from the base in a direction of the stator yoke for at least partial engagement in complementary recesses in the stator yoke;
- wherein the stator yoke projects at least axially over the winding overhangs located at an end face of the electric machine;
- and
- wherein the base of the main body has a cylinder surface in a direction toward the rotor, said cylinder surface having a net-like structure.
5 more elements
Dependencies are inferred from the claim text.