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US 2026/0229931 A1Published application
Systems for stator fixation
AssigneeFord Global Technologies, LLC
InventorsJoel Hetrick, Jacob Krizan, Matthew Schmitt
Life of this patent
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Abstract
Systems are provided for stator fixation in electric machines. In one example, an electric machine includes a housing with evenly distributed recesses adapted to receive protrusions extending radially from a stator. The protrusions include a plurality of tabs which bend upon insertion of the stator into the rotor, thereby fixing the stator concentrically with the housing.
Claims20
An electric machine, comprising:
- a laminated circumferential stator comprising at least three integral radially and outwardly extending protrusions uniformly distributed around a perimeter of the stator, where each protrusion comprises tabs;
- and
- a housing comprising recesses adapted to accommodate the protrusions, where the tabs are adapted to bend upon insertion of the stator into the housing to fix the stator to the housing.
An electric machine, comprising:
- a housing with equidistantly radially arranged recesses;
- a stator positioned within the housing, wherein the stator is fixed to the housing via ears integral with lamination layers of the stator extending radially into the recesses and tabs integral with the ears bending against walls of the recesses, wherein the ears and the tabs maintain concentric positioning of the housing and the stator.
An electric machine, comprising:
- a rotor centered on a rotational axis;
- a housing centered about the rotational axis with three or more recesses;
- and
- a stator comprising a plurality of lamination layers circumferentially surrounding the rotor and circumferentially surrounded by the housing, the plurality of lamination layers each including three or more radially protruding ears and some of the plurality of lamination layers further including two or more tabs extending from each of the ears, wherein the stator is fixed to the housing by the tabs bending against walls of the recesses such that the rotor, the stator, and the housing are coaxial.
1 more element
Dependencies are inferred from the claim text.