APPARATUS FOR A HIGH SPEED SLEEVELESS ROTOR
First Claim
1. A high-speed sleeveless rotor for an electric machine, said rotor comprising:
- a shaft rotatable about a longitudinal axis; and
a rotor core circumscribing at least a portion of said shaft, said rotor core comprising an axially oriented slot, said slot comprising a radially outer slot opening, a radially inner slot floor, and a slot sidewall extending therebetween, said slot floor comprising a topstick attachment member extending radially outward from said slot floor and configured to engage a topstick positioned in said slot opening, said slot sidewall comprising a shoulder configured to engage the topstick, preventing radially outward movement of the topstick.
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Accused Products
Abstract
A high-speed sleeveless rotor for an electric machine is provided. The rotor includes a shaft rotatable about a longitudinal axis, and a rotor core circumscribing at least a portion of the shaft wherein the rotor core includes an axially oriented slot. The slot includes a radially outer slot opening, a radially inner slot floor, and a slot sidewall extending therebetween. The slot floor includes a topstick attachment member extending radially outward from the slot floor and configured to engage a topstick positioned in the slot opening and the slot sidewall includes a shoulder configured to engage the topstick, preventing radially outward movement of the topstick.
32 Citations
20 Claims
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1. A high-speed sleeveless rotor for an electric machine, said rotor comprising:
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a shaft rotatable about a longitudinal axis; and a rotor core circumscribing at least a portion of said shaft, said rotor core comprising an axially oriented slot, said slot comprising a radially outer slot opening, a radially inner slot floor, and a slot sidewall extending therebetween, said slot floor comprising a topstick attachment member extending radially outward from said slot floor and configured to engage a topstick positioned in said slot opening, said slot sidewall comprising a shoulder configured to engage the topstick, preventing radially outward movement of the topstick. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A high-speed sleeveless rotor for an electric machine, said rotor comprising:
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a plurality of laminations each having an outer peripheral edge stacked face-to-face along a rotor shaft forming a rotor core having an outer peripheral surface comprising the edges of the plurality of laminations; a plurality of axial slots spaced at a predetermined interval in the circumferential direction of the rotor core, each axial slot closed by a topstick extending at least partially along a length of the slot, each axial slot comprising; an engagement surface configured to engage a radially outer lip of the topstick; a side wall extending radially inwardly toward a slot floor; and an attachment member extending radially outward from said slot floor, said attachment member configured to engage at least one of the topstick and a topstick wedge such that centrifugal forces generated in one or more components positioned within the slot are shared between said attachment member and said engagement surface. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A lamination for a laminated core of an electric machine, said lamination comprising a unitary planar body comprising:
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an outer peripheral edge; an inner peripheral edge spaced radially from said outer peripheral edge; and a plurality of openings that extend through said body from said outer peripheral edge radially inwardly such that said openings are arcuately spaced about said body, said openings each comprising a slot floor edge between said outer peripheral edge and said inner peripheral edge, said slot floor edge comprising a topstick attachment member extending radially outward therefrom and configured to engage at least one of a topstick and a topstick wedge. - View Dependent Claims (17, 18, 19, 20)
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Specification