Magnetic mass for rotor, rotor manufacturing process and corresponding electrical machine
First Claim
1. A magnetic mass of an electric machine rotor extending along a longitudinal axis, and comprising a plurality of housings, each housing being able to receive a respective electrically conductive bar,wherein the magnetic mass further comprises, on at least one portion of its length along the longitudinal axis:
- at least one opening extending radially from one of the housings and opening outwards along a radial direction, perpendicular to the longitudinal axis, each opening comprising a first portion of rectangular shape and a second portion of trapezoidal shape into which the first portion opens, the second portion extending to a periphery of the magnetic mass.
1 Assignment
0 Petitions
Accused Products
Abstract
A magnetic mass of an electric machine rotor extending along a longitudinal axis and comprising a plurality of housings, each housing being able to receive a respective electrically conductive bar. The magnetic mass further comprises, on at least one portion of its length along the longitudinal axis, at least one opening extending radially from one of the housings and opening outwards along a radial direction, substantially perpendicular to the longitudinal axis.
4 Citations
13 Claims
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1. A magnetic mass of an electric machine rotor extending along a longitudinal axis, and comprising a plurality of housings, each housing being able to receive a respective electrically conductive bar,
wherein the magnetic mass further comprises, on at least one portion of its length along the longitudinal axis: at least one opening extending radially from one of the housings and opening outwards along a radial direction, perpendicular to the longitudinal axis, each opening comprising a first portion of rectangular shape and a second portion of trapezoidal shape into which the first portion opens, the second portion extending to a periphery of the magnetic mass. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A rotor of an electric machine comprising:
a magnetic mass of an electric machine rotor extending along a longitudinal axis, and comprising a plurality of housings, each housing being able to receive a respective electrically conductive bar, wherein the magnetic mass further comprises, on at least one portion of its length along the longitudinal axis; at least one opening extending radially from one of the housings and opening outwards along a radial direction, perpendicular to the longitudinal axis, each opening comprising a first portion of rectangular shape and a second portion of trapezoidal shape into which the first portion opens, the second portion extending to a periphery of the magnetic mass; and a short-circuit cage extending along the longitudinal axis and comprising; two short-circuit rings placed on either side of the magnetic mass along the longitudinal axis, a plurality of electrically conductive bars, each electrically connecting the two short-circuit rings. - View Dependent Claims (9, 10, 11, 12, 13)
Specification