| 摘要 |
PROBLEM TO BE SOLVED: To provide a stator for a rotary electric machine, capable of suppressing differences in current densities in a bus bar and reducing stress caused by temperature differences.SOLUTION: A stator 20 includes: an annular stator core 30 having a plurality of slots 31 in a peripheral direction; a stator winding 40 composed of three-phase phase windings stored in the slots 31 and wound around the stator core 30; and a bus bar module 60 configured by integrating a U-phase bus bar 61U, a V-phase bus bar 61V and a W-phase bus bar 61W electrically connecting respective phase windings to an external apparatus by a fixing member 65. The phase bus bars 61U, 61V, 61W are respectively composed of a plurality of branch parts 63U, 63V, 63W electrically connected to respective phase windings and stem parts 62U, 62V, 62W for electrically connecting the respective branch parts 63U, 63V, 63W. In the stem parts 62U, 62V, 62W, a cross section of a rotary electric machine side end part is smaller than a cross section of an inverter side end part.SELECTED DRAWING: Figure 8 |
