ROTOR FOR AN INDUCTION MOTOR AND METHOD FOR FABRICATING
First Claim
1. A method for fabricating a rotor assembly for an induction motor, comprising:
- assembling a shorting end ring onto the rotor assembly comprising a steel laminate stack and a plurality of conductor bars, wherein the shorting end ring comprises a plurality of grooves aligned with corresponding portions of the conductor bars extending from a first end of the steel laminate stack, and wherein the assembling comprises inserting the corresponding portions of the conductor bars into the grooves of the shorting end ring; and
affixing the shorting end ring to the rotor assembly by applying a compressive force around a perimeter of the shorting end ring to deform the conductor bars.
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Accused Products
Abstract
A method for fabricating a rotor assembly for an induction motor includes assembling a shorting end ring onto the rotor assembly which includes a steel laminate stack and a plurality of conductor bars. The shorting end ring includes a plurality of grooves aligned with corresponding portions of the conductor bars extending from a first end of the steel laminate stack. Assembling includes inserting the corresponding portions of the conductor bars into the grooves of the shorting end ring. The shorting end ring is affixed to the rotor assembly by applying a compressive force around a perimeter of the shorting end ring to deform the conductor bars.
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Citations
15 Claims
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1. A method for fabricating a rotor assembly for an induction motor, comprising:
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assembling a shorting end ring onto the rotor assembly comprising a steel laminate stack and a plurality of conductor bars, wherein the shorting end ring comprises a plurality of grooves aligned with corresponding portions of the conductor bars extending from a first end of the steel laminate stack, and wherein the assembling comprises inserting the corresponding portions of the conductor bars into the grooves of the shorting end ring; and affixing the shorting end ring to the rotor assembly by applying a compressive force around a perimeter of the shorting end ring to deform the conductor bars. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A rotor assembly for an induction motor, comprising:
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a cylindrically shaped steel laminate stack including a plurality of grooves around the periphery of the steel laminate stack and oriented longitudinally to the steel laminate stack; a plurality of conductor bars, each conductor bar located in one of the plurality of grooves and comprising a respective first end projecting from a first end of the steel laminate stack; a shorting end ring comprising a plurality of grooves, each groove mated with one of the respective first ends of the plurality conductor bars; and wherein the first ends of the plurality of the conductor bars are sufficiently compressively deformed to mechanically lock the conductor bars to the shorting end ring.
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14. A rotor assembly for an induction motor, comprising:
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a cylindrically shaped steel laminate stack including a plurality of grooves around the periphery of the steel laminate stack and oriented longitudinally to the steel laminate stack; a plurality of conductor bars, each conductor bar located in one of the plurality of grooves and comprising a respective first end projecting from a first end of the steel laminate stack; a shorting end ring comprising a plurality of grooves, each groove mated with one of the respective first ends of the plurality of conductor bars; and a swage ring surrounding a portion of the shorting end ring and mated first ends of the plurality of conductor bars and compressively deforming the first ends of the plurality of the conductor bars sufficient to mechanically lock the conductor bars to the shorting end ring. - View Dependent Claims (15)
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Specification