Motor stator coolant distribution via internal channels

A motor stator includes a plurality of stacked annular stator laminations defining a stator core having an inner circumferential portion, an outer circumferential portion, a plurality of stator teeth on the inner circumferential portion, and a plurality of lugs extending outwardly from the outer circumferential portion, wherein a respective bolt hole is defined in each lug. The first set of stator laminations includes a plurality of coolant openings therethrough, where the coolant openings of adjacent stator laminations communicate with one another so as to define cooling channels within the stator core. The second set of stator laminations each includes one or more substantially radially extending first openings therethrough, where the first openings of adjacent stator laminations communicate with each other to define one or more first radial channel segments within the stator core for providing a radial coolant flow between the one or more bolt holes and the one or more cooling channels. 一种马达定子包括多个堆叠的环形定子叠片