Electric motor and construction methods thereof
AssigneeFord Global Technologies, LLC
InventorsJoel Hetrick, Jacob Krizan, Cyrille Goldstein
Life of this patent
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Abstract
An electric machine includes an outer housing and a stator secured to the outer housing and configured to induce an electromagnetic field. The electric machine also includes a rotor configured to output rotational movement in response to the electromagnetic field of the stator. The electric machine further includes at least one retention key configured to cooperate with a retention feature of the stator to engage a channel of the outer hosing to generate a circumferential force to resist movement of the stator relative to the housing.
Claims10
An electric machine comprising:
- an outer housing;
- a stator secured to the outer housing and configured to induce an electromagnetic field;
- a rotor configured to output rotational movement in response to the electromagnetic field of the stator;
- and
- at least one retention key configured to cooperate with a retention feature of the stator to engage a channel of the outer housing to generate a circumferential force to resist movement of the stator relative to the outer housing, wherein the retention feature includes a prong abutted against a first inner wall of the channel and the retention key abuts against an opposing second inner wall of the channel.
An electric machine comprising:
- a rotor configured to output rotational movement in response to an electromagnetic field;
- a stator disposed about the rotor and configured to induce the electromagnetic field in response to a supplied power, the stator including at least one radially-extending retention feature;
- a housing configured to secure the stator, wherein the housing includes a channel to receive the at least one retention feature;
- and
- a retention key configured to cause the at least one retention feature to engage opposing side walls of the channel to restrict movement of the stator, wherein the retention key comprises a circumferentially-extending prong configured to longitudinally deflect during insertion of the stator into the housing in a first direction and return to a longitudinally undeflected position during movement in a second opposing direction.
Dependencies are inferred from the claim text.