STATOR FOR ROTARY ELECTRIC MACHINE

To efficiently cool a stator coil of a rotary electric machine.SOLUTION: The present invention relates to a stator 12 for a rotary electric machine including: a stator core 16 comprising a plurality of teeth 32 and a plurality of slots 34; a cuff support 24 which comprises partition pieces 42 and openings 44 respectively corresponding to the teeth and the slots of the stator core and is attached to an axial end face of the stator core; and coils 18 wound around the teeth and the partition pieces. When operating the rotary electric machine, an axis is disposed in a horizontal direction and the stator coil is cooled by receiving a coolant from an upper side in a gravity direction. Clearances 26 are formed between inner peripheral ends of the slots 34 and the openings 44 and the innermost peripheral coil 18. The cuff support 24 includes: inner ribs 48 which are continued radially inside of the clearances 26 in an upper part of the stator core in the gravity direction and protrude axially outside of the stator core; and outer ribs 50 which are continued radially outside of the clearances 26 in a lower part of the stator core in the gravity direction and protrude axially outside of the stator core.SELECTED DRAWING: Figure 3 【課題】回転電機のステータコイルを効率よく冷却する。【解決手段】複数のティース３２と複数のスロット３４を有するステータコア１６と、ステータコアのティースとスロットのそれぞれに対応する仕切り片４２と開口４４を有し、ステータコアの軸方向端面に取り付けられるカフサ２４と、ティースおよび仕切り片に巻回されたコイル１８とを含み、回転電機の動作時に、軸を水平方向に配置し、重力方向上側から冷媒を受けて冷却される回転電機のステータ１２である。スロット３４および開口４４の内周端と、最も内周側のコイル１８との間に隙間２６が形成されている。カフサ２４は、ステータコアの重力方向上部における上記各隙間２６の径方向内側で連なり、ステータコアの軸方向外方に突出する内側リブ４８と、ステータコアの重力方向下部における上記各隙間２６の径方向外側で連なり、ステータコアの軸方向外方に突出する外側リブ５０とを有する。【選択図】図３