Laminated core of rotary electric machine

Details Laminated core of rotary electric machine Laminated core of rotary electric machine

2006-08-25

2008-05-27

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S216055, C310S216055, C310S156530, C310S156560, C336S233000, C336S234000

Reexamination Certificate

active

07378774

ABSTRACT:
A laminated core having a first number of magnetic poles, the first number being a natural number divided by two, of a rotary electric machine, includes a plurality of arc-shaped unit cores each having a second number of magnetic poles, the second number being a natural number except for an aliquot part of the first number. The unit cores are wound and laminated a predetermined number of times in a circumferential direction into a spiral shape in such a manner that an axial lamination amount of the unit cores is obtained by an equation of X=θ*t/360, X being the axial lamination amount, θ being a winding angle of the unit cores, and t being a thickness of the unit core. The unit cores are adjacent to each other in the circumferential direction connected to each other at a part of an outer circumference thereof.

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