Stator of rotary electric machine
AssigneeMitsubishi Electric Corporation
InventorsKota Katsuragi, Shogo Okamoto, Shinichiro Yoshida
Life of this patent
Estimating the term…
Abstract
In a concentrated winding stator, which has a separated iron core structure, of a rotary electric machine, a length of ear portions 3c of insulating sheets 3, which are protruded between neighboring winding 4, is set as a length by which a creepage distance, which is required for an insulation between the neighboring windings 4, can be secured.
Claims6
A stator of a rotary electric machine, the stator is configured by connecting a plurality of separated cores in an annular shape, each separated core formed of a plurality of laminated iron cores and having windings wound around teeth portions of the laminated iron cores via insulating sheets;
- wherein
- the insulating sheets are composed of mounted portions, which are mounted at the teeth portions of the laminated iron cores, and extended portions that extend from both sides of the mounted portions and have a portion that is covered between the windings of the neighboring laminated iron cores, the extended portions have a length in the axial direction that is longer than an axial length of the mounting portions and that is limited to a creepage distance length that is required in order to secure an insulation between the neighboring windings.
Dependencies are inferred from the claim text.