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US 10,840,785 B2Granted
Method for fabricating brushless motor windings
AssigneeDigital Aerolus, Inc.
InventorIan J. McEwan
Life of this patent
Estimating the term…
Abstract
Methods of assembling motor windings comprising wrapping windings around a central longitudinal axis in a cylindrical shape having a plurality of annularly spaced positions such that the windings form “n” and/or “u” shapes around the positions. As the windings encircle the longitudinal axis, they are wrapped in an outward spiral or inward spiral such that each pass of the windings is stacked on a previous pass.
Claims7
A method of assembling windings for a brushless motor including a plurality of stator teeth each having a base end and a distal end, the method comprising:
- stacking a narrowest portion of a first winding around a central longitudinal axis in a cylindrical shape having a plurality of annularly spaced positions such that the first winding reverses longitudinal direction around every third position of the first winding starting with a first position of the first winding;
- stacking a narrowest portion of a second winding around the longitudinal axis such that the second winding reverses longitudinal direction around every third position of the second winding starting with a second position of the second winding adjacent the first position of the first winding;
- stacking a narrowest portion of a third winding around the longitudinal axis such that the third winding reverses longitudinal direction around every third position of the third winding starting with the third position of the third winding adjacent the second position of the second winding;
- stacking progressively wider portions of the first winding, the second winding, and the third winding on previously stacked portions of the first winding, the second winding, and the third winding;
- and
- stacking widest portions of the first winding, the second winding, and the third winding on the previously stacked portions of the first winding, the second winding, and the third winding so as to form an outward spiral with the narrowest portions of the first winding, the second winding, and the third winding being closer to the base ends of the plurality of stator teeth and the widest portions of the first winding, the second winding, and the third winding are closer to the distal ends of the plurality of stator teeth.
3 more elements
Dependencies are inferred from the claim text.