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发明授权
CN104242496B 旋转电机的定子铁心 有权

旋转电机的定子铁心
摘要：
本发明提供一种旋转电机的定子铁心，其能够满足层叠钢板的一体固定中所要求的各种性能，即，能够实现涡流损耗的增加抑制、紧固连结强度的提高、层叠精度的提高及生产率的提高。在分割铁心(10)的背轭(20)中，在各个分割铁心上各形成一个紧固部(40)，并且紧固部具有矩形形状的突起部(41)及凹部(42)而构成为平坦紧固状。在从轴向观察时，在将两个内周侧交点和两个外周侧交点由直线连结成对角状的情况下分割的四个对角区域之中的径向外侧的对角区域的内部配置紧固部的中心位置，其中，两个内周侧交点为齿的周向两端面与背轭的内周面相交的交点，两个外周侧交点为使齿的周向两端面延长的假想线与背轭的外周面相交的交点。
摘要（英）：

A stator core for a rotating electric machine includes a plurality of split cores. Each of the plurality of split cores includes a back yoke, a tooth, and a single caulking portion. When each of the plurality of split cores is seen in an axial direction, two inner circumferential-side intersections and two outer circumferential-side intersections are defined, both circumferential-end surfaces of the tooth intersect an inner circumferential surface of the back yoke at the two inner circumferential-side intersections, virtual lines drawn by extending both the circumferential-end surfaces of the tooth intersect an outer circumferential surface of the back yoke at the two outer circumferential-side intersections, a central position of the caulking portion is disposed in an opposing angular region on a radially outer side out of four opposing angular regions defined by lines diagonally connecting the two inner circumferential-side intersections to the respective two outer circumferential-side intersections.

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