Granted Patent B2

US 12,476,513 · App. 18/037,806 · Granted Nov 18, 2025

Inventors: Cedric Blaes (Munchhausen, FR); Bruno Muller (Sasbach, DE); Thomas Niesen (Karlsruhe, DE)

Assignee: Schaeffler Technologies AG & Co. KG

H02K5/15

Abstract

Claims (34)

1 . An electric machine for use within a drive train of a hybrid or fully electrically driven motor vehicle, comprising

a stator and a rotor received in a motor housing, wherein the motor housing has at least one D end shield and at least one N end shield for supporting the rotor relative to the motor housing,

wherein at least one of

the D end shield or the N end shield has a two-part design,

with an intermediate shield arranged axially between the stator and a cover shield fixed to the motor housing,

wherein the intermediate shield receives a bearing of the rotor, and

the cover shield is releasably fixed to a side of the intermediate shield facing away from the stator, and

the cover shield has a centering element for radially centering the intermediate shield, and

wherein the intermediate shield has a double-T cross-sectional contour with a radially outer axial section and a radially inner axial section.

2 . The electric machine according to claim 1 , wherein the cover shield is fixed to the radially outer axial section of the intermediate shield.

3 . The electric machine according to claim 2 ,

wherein the cover shield is fixed to the radially inner axial section of the intermediate shield.

4 . The electric machine according to claim 3 , wherein the centering element of the cover shield comprises an axial section which projects in an axial direction from the cover shield and is engaged in the double-T contour radially between the outer axial section and the inner axial section of the intermediate shield to fix a radial position of the intermediate shield.

5 . The electric machine according to claim 4 , wherein the axial section of the cover shield rests against a radially outer lateral surface of the inner axial section of the intermediate shield.

6 . The electric machine according to claim 2 , wherein a radial connection between the outer axial section and the inner axial section of the intermediate shield comprises a spoke.

7 . The electric machine according to claim 1 , wherein the intermediate shield is comprised of a cast metal material.

8 . An electric machine for a drive train of a hybrid or fully electrically driven motor vehicle, comprising:

a stator;

a rotor; and

a motor housing in which the stator and rotor are received;

wherein the motor housing includes a body and at least one D end shield and at least one N end shield for supporting the rotor relative to the body;

wherein at least one of the D end shield or the N end shield includes an intermediate shield and a cover shield;

wherein the cover shield is fixed to the body;

wherein the intermediate shield is arranged axially between the stator and the cover shield;

wherein the intermediate shield receives a bearing of the rotor; and

wherein the cover shield is releasably fixed to a side of the intermediate shield facing away from the stator;

wherein the cover shield includes a centering element for radially centering the intermediate shield; and

wherein the intermediate shield has a double-T cross-sectional contour with a radially outer axial section and a radially inner axial se.

9 . The electric machine according to claim 8 , wherein the cover shield is fixed to the radially outer axial section of the intermediate shield.

10 . The electric machine claim 9 , wherein the cover shield is fixed to the radially inner axial section of the intermediate shield.

11 . The electric machine according to claim 10 , wherein the centering element of the cover shield comprises an axial section which projects in an axial direction from the cover shield and is engaged in the double-T contour radially between the outer axial section and the inner axial section of the intermediate shield to fix a radial position of the intermediate shield.

12 . The electric machine according to claim 11 , wherein the axial section of the cover shield rests against a radially outer lateral surface of the inner axial section of the intermediate shield.

13 . The electric machine according to claim 8 , wherein a radial connection between the outer axial section and the inner axial section of the intermediate shield comprises a spoke.

14 . The electric machine according to claim 1 , wherein the intermediate shield is comprised of a cast metal material.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (13)