Bus bar unit and manufacturing method thereof

Disclosed are a bus bar unit capable of being easily manufactured while preventing a bus bar from being separated from a magnetic core and also capable of being reduced in size, and a manufacturing method thereof. The bus bar unit includes a magnetic core having a through-hole and covered with an insulating material, U-phase, V-phase and W-phase bus bars of which main body portions are arranged inparallel with each other in a predetermined direction within the through-hole and one side connecting portions provided on one side in an axial direction of the through-hole from the main body portions are bent in a direction crossing the axial direction, and a base member formed of an insulating material and to which the magnetic core is fixed, wherein the one side connecting portions of the busbars are held while being disposed between the base member and the magnetic core. 本发明提供种可在防止母线自磁性体芯部脱落的同时容易地进行制造、且可实现小型化的母线单元及母线单元制造方法。所述母线单元包括：磁性体芯部，具有贯穿孔，且由绝缘材料覆盖；U相母线、V相母线及W相母线，在贯穿孔内以在规定方向上排列的状态配置有本体部，且相较于本体部而靠贯穿孔轴向中的侧设置的侧