Systems and methods for axial impact resistance in electric motors
AssigneeiFIT Inc.
InventorEvan Charles Tinney
Life of this patent
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Abstract
A system for providing torque includes a stator, a rotor, an axle, an endcap, an endbell, and a compliant member. The stator has a first end and a second end opposite the first end with a chamber therein. The rotor is at least partially positioned in the chamber and rotatable relative to the stator about a longitudinal axis. The axle has a first end, a second end opposite the first end, and supports the rotor. The endcap is located at a first end of the stator and adjacent to the first end of the axle, and the endbell is located at the second end of the stator and adjacent to the second end of the axle. The compliant member is positioned relative to the axle between a portion of the rotor and one of the endbell and the endcap.
Claims18
A system for providing torque, the system comprising:
- a stator having a first end, a second end opposite the first end, and a chamber therein;
- a rotor at least partially positioned in the chamber and rotatable relative to the stator about a longitudinal axis;
- an axle having a first end, a second end opposite the first end, and supporting the rotor;
- an endcap located at a first end of the stator and adjacent to the first end of the axle, wherein an endcap gap is formed between the endcap and a first portion of the rotor, wherein the first portion of the rotor extends radially from the axle at the endcap gap;
- an endbell located at the second end of the stator and adjacent to the second end of the axle;
- a first compliant member positioned relative to the axle between a second portion of the rotor and the endcap, the first compliant member being deformable along the longitudinal axis;
- a tab, the tab connecting the first compliant member to the stator;
- and
- a second compliant member positioned relative to the axle between a third portion of the rotor and the endbell, the second compliant member being deformable along the longitudinal axis.
A system for providing torque, the system comprising:
- a stator having a first end, a second end opposite the first end, and a chamber therein;
- a rotor at least partially positioned in the chamber and rotatable relative to the stator about a longitudinal axis;
- an axle having a first end, a second end opposite the first end, and supporting the rotor;
- an endcap located at a first end of the stator and adjacent to the first end of the axle, wherein an endcap gap is formed between the endcap and a shoulder of the rotor;
- an endbell located at the second end of the stator and adjacent to the second end of the axle;
- a first compliant member positioned at least partially around the axle between a portion of the rotor and the endcap, the first compliant member being deformable along the longitudinal axis;
- a tab, the tab connecting the first compliant member to the stator;
- and
- a second compliant member positioned at least partially around the axle between a portion of the rotor and the endbell, the second compliant member being deformable along the longitudinal axis.
A system for providing torque, the system comprising:
- a stator having a first end, a second end opposite the first end, and a chamber therein, the stator having at least one permanent magnet positioned in the chamber;
- a rotor at least partially positioned in the chamber and rotatable relative to the stator about a longitudinal axis;
- an axle having a first end, a second end opposite the first end, and supporting the rotor;
- an armature positioned on the axle and configured to rotate with the axle;
- an endbell located at a first end of the stator and adjacent to the first end of the axle;
- an endcap located at the second end of the stator and adjacent to the second end of the axle, wherein an endcap gap is formed between the endcap and the armature;
- a first resilient member positioned at least partially around the axle between a portion of the rotor and the endcap, the first resilient member being deformable along the longitudinal axis;
- a tab, the tab connecting the first resilient member to the stator;
- and
- a second resilient member positioned at least partially around the axle between a portion of the rotor and the endbell, the second resilient member being deformable along the longitudinal axis.
Dependencies are inferred from the claim text.