Stator, electric machine and electric drive train

Abstract

Stator (1) for an electric machine (2), in particular for an electric machine (2) within a drive train (3) of a motor vehicle (4), comprising a stator body (5) with a plurality of circumferentially distributed stator teeth (6) and stator slots (7) formed between the stator teeth (6) and extending axially through the stator body (5), wherein electrical conductors (8) of a stator winding (9) are arranged in the stator slots (7), which at least form a winding head (10) exit the stator body (5) at its end face, wherein the winding head (10) can be supplied with cooling fluid (11) flowing through the stator slots (7) during operation of the electric machine (2), and the stator body (5) has an upper half (12) and a lower half (13) viewed in the direction of gravity, wherein a fluid guide ring (15) is positioned on the cylindrical ring-shaped winding head (10),the fluid guide section (16) having a first cylindrical ring-shaped fluid guide section (17) whose outer diameter (17) is smaller than the inner diameter (18) of the winding head (10) and which has an axial overlap with the winding head (10) and which further extends in the circumferential direction of the fluid guide ring (15) at least through the upper half (12) of the stator body (5), wherein the fluid guide ring (15) further has a second cylindrical ring-shaped fluid guide section (19) whose inner diameter (20) is larger than the outer diameter (21) of the winding head (10) and which has an axial overlap with the winding head (10) and which further extends in the circumferential direction of the fluid guide ring (15) at least partially through the lower half (13) of the stator body (5) and has a first fluid passage opening (22) from which cooling fluid (11) can flow off by gravity,wherein a radially outwardly extending, annular-shaped first wall section (23) is formed on the first fluid guide section (16), and wherein a second fluid passage opening (25) is formed on the first wall section (23), through which the cooling fluid (11) can be supplied to a rolling bearing (27) via a fluid path (26).

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