Hybrid drive module having a rotor secured to a hub utilizing staking of an end ring
AssigneeSchaeffler Technologies AG & Co. KG
InventorsAyyalraju Satyaseelan, Justin Persinger
Life of this patent
Estimating the term…
Abstract
A hybrid drive module, comprising a cover of a torque converter. The hybrid drive module further includes a carrier hub connected to a rotor of an electric motor and the cover, the hub including a first surface and a protrusion extending outward from the first surface. The hybrid drive module also includes an end ring disposed between the protrusion and the rotor and in contact with the first surface, wherein the end ring is engaged with the protrusion and the rotor, and the protrusion restrains the end ring and rotor utilizing an interference fit between the carrier hub and the end ring.
Claims20
A hybrid drive module, comprising:
- a cover of a torque converter;
- a carrier hub connected to a rotor of an electric motor and the cover, the carrier hub including an outer surface and a protrusion extending axially and radially outward from the outer surface, wherein the outer surface of the carrier hub is in contact with an end ring inner surface and a rotor inner surface;
- and
- an end ring disposed between the protrusion and the rotor and in contact with the outer surface, wherein the end ring is engaged with the protrusion of the carrier hub via a protrusion surface extending both axially and radially outward from a rotation axis, and the end ring is engaged with a radial surface of the rotor, and the protrusion restrains the end ring and the rotor utilizing an interference fit between the carrier hub and the end ring.
A method of securing components to a carrier hub of a hybrid drive module including a torque converter and an electric motor including a rotor, comprising:
- connecting an end ring to the rotor and a protrusion of the carrier hub, wherein the protrusion is extending axially and radially outward from an axis of rotation, wherein the end ring includes a protrusion surface abutting the protrusion;
- heating the end ring;
- and
- providing an interference fit between the carrier hub and the end ring at the protrusion and protrusion surface by cooling the end ring.
A hybrid drive module, comprising:
- a carrier hub connected to a rotor of an electric motor, the carrier hub including a protrusion extending both axially and radially outward from a surface;
- and
- an end ring disposed between the protrusion and the rotor, wherein the end ring is engaged with the protrusion via a protrusion surface extending both axially and radially away from a rotation axis utilizing an interference fit between the carrier hub and the end ring.
Dependencies are inferred from the claim text.