Hybrid motor vehicle drive train including hybrid module baffle blade

Patent metadata

Field	Value
Publication number	US-10399427-B2
Application number	US-201715712075-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Sep 21, 2017
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

A hybrid module is configured for arrangement in a torque path upstream from a transmission and downstream from an internal combustion engine. The hybrid module includes a drive unit including an electric motor and a housing, a torque converter connected to the electric motor and a baffle fixed to the housing and the stator. The baffle extends axially from the housing radially outside of the electric motor and the torque converter.

First claim

What is claimed is:

1. A hybrid module configured for arrangement in a torque path upstream from a transmission and downstream from an internal combustion engine, the hybrid module comprising:
a drive unit including an electric motor and a housing, the electric motor including a stator and a rotor rotatable inside of the stator;
a torque converter connected to the electric motor; and
a baffle fixed to the housing and the stator, the baffle extending axially from the housing radially outside of the electric motor and the torque converter, a blade portion of the baffle being arced and extending circumferentially along the electric motor and the torque converter from a first circumferential end of the blade portion to a second circumferential end of the blade portion, the first and second circumferential ends being circumferentially spaced from each other.

2. The hybrid module as recited in claim 1 wherein the baffle includes a connector extending radially inward from the blade portion to engage the stator.

3. The hybrid module as recited in claim 2 wherein the connector is at least one hook.

4. The hybrid module as recited in claim 3 the stator includes an axial protrusion extending from a torque converter facing surface thereof, the at least one hook wrapping around the protrusion.

5. The hybrid module as recited in the claim 3 wherein the at least one hook is flexible and is deformed onto the protrusion.

6. The hybrid module as recited in claim 2 wherein the first and second circumferential ends of the blade portion each include circumferentially extending slots formed therein.

7. The hybrid module as recited in claim 2 wherein the baffle includes a tab extending radially inward from the blade portion.

8. The hybrid module as recited in claim 7 wherein the tab extends circumferentially in an arced path.

9. The hybrid module as recited in claim 1 wherein the baffle includes a base connected to the housing, the baffle being cantilevered to the housing at the base.

10. The hybrid module as recited in claim 9 wherein the base includes at least one base hole, the housing including at least one housing hole, the hybrid module further including at least one fastener, each fastener extending through a corresponding one of the base holes into a corresponding one of the housing holes.

11. The hybrid module as recited in claim 1 wherein the first and second circumferential ends are spaced from each other by an angle of between 120 and 180 degrees with respect to a center axis of the hybrid module.

12. A method of constructing a hybrid module configured for arrangement in a torque path upstream from a transmission and downstream from an internal combustion engine, the method comprising:
providing a drive unit including an electric motor and a housing, the electric motor including a stator and a rotor rotatable inside of the stator;
connecting a torque converter to the electric motor; and
fixing a baffle to the housing and to the stator such that the baffle extends axially from the housing radially outside of the electric motor and the torque converter, the baffle including a base and a free end, the fixing of the baffle to the housing including fixing the base to the housing such that the base is aligned radially outward from the stator and the free end is aligned radially outward from the torque converter, the baffle being cantilevered to the housing at the base and extending axially away from the base and the housing to the free end.

13. The method as recited in claim 12 wherein the fixing of the baffle to the stator includes engaging the stator with a connector extending radially inward from a blade portion of the baffle.

14. The method as recited in claim 13 wherein the connector is at least one hook and the stator includes an axial protrusion extending from a torque converter facing surface thereof, the engaging of the stator including deforming the hook onto the protrusion.

15. The method as recited in claim 14 wherein the base of the baffle includes at least one base hole, the housing including at least one housing hole, the deforming of the hook including inserting at least one fastener through a corresponding one of the base holes into a corresponding one of the housing holes and tightening the at least one fastener, the tightening of the at least one fastener deforming the hook.

16. The method as recited in claim 13 wherein the blade portion is arced and extends circumferentially along the electric motor and the torque converter.

17. The method as recited in claim 13 wherein circumferential ends of the blade portion each include circumferentially extending slots formed therein.

18. The method as recited in claim 13 wherein the baffle includes a tab extending radially inward from the blade portion.

19. A hybrid module configured for arrangement in a torque path upstream from a transmission and downstream from an internal combustion engine, the hybrid module comprising:
a drive unit including an electric motor and a housing, the electric motor including a stator and a rotor rotatable inside of the stator;
a torque converter connected to the electric motor; and
a baffle fixed to the housing and the stator, the baffle extending axially from the housing radially outside of the electric motor and the torque converter, the baffle including a blade portion and a tab extending radially inward from the blade portion, the tab being in a space axially delimited by the stator and a front cover of the torque converter.

Assignees

• Schaeffler Technologies Ag

Inventors

• Payne Matthew
• Wurst Nicolas
• Ramsey John

Classifications

• B60K6/387

  Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means · CPC title

• B60K6/40

  characterised by the assembly or relative disposition of components · CPC title

• B60K2006/4825

  Electric machine connected or connectable to gearbox input shaft · CPC title

• B60K6/48 Primary

  Parallel type · CPC title

• H02K7/006

  Structural association of a motor or generator with the drive train of a motor vehicle · CPC title