Thermal management assembly for an electrified vehicle
First Claim
1. An electric machine housing cover comprising:
- an inner sidewall; and
an outer sidewall spaced from the inner sidewall to define a coolant channel therebetween,wherein the sidewalls are defined by an interior cover surface, wherein the coolant channel receives stator end windings when the cover is secured to the housing, and wherein the interior cover surface defines a meandering trough between the sidewalls to form a predetermined coolant path relative to end winding locations.
1 Assignment
0 Petitions
Accused Products
Abstract
A cover for a housing of an electric machine is provided. The cover may include an inner sidewall and an outer sidewall. The outer sidewall may be spaced apart from the inner sidewall to define a coolant channel therebetween. The inner sidewall and outer sidewall may be defined by an interior surface of the cover such that the coolant channel receives end windings of a stator of the electric machine when the cover is secured to the housing. The interior surface of the cover may define features between the sidewalls to promote turbulence of coolant flowing through the coolant channel. The interior surface of the cover may define a meandering trough between the sidewalls to form a predetermined coolant path relative to a location of the end windings when the cover is secured to the housing.
68 Citations
16 Claims
-
1. An electric machine housing cover comprising:
-
an inner sidewall; and an outer sidewall spaced from the inner sidewall to define a coolant channel therebetween, wherein the sidewalls are defined by an interior cover surface, wherein the coolant channel receives stator end windings when the cover is secured to the housing, and wherein the interior cover surface defines a meandering trough between the sidewalls to form a predetermined coolant path relative to end winding locations. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A housing of an electrified vehicle electric machine comprising:
-
a cover defining an interior surface and an exterior surface; an inner sidewall defined by the interior surface and having a circular shape; and an outer sidewall defined by the interior surface and spaced apart from the inner sidewall to define a coolant channel therebetween, wherein the interior surface is arranged with the housing such that the coolant channel receives end windings of a stator of the electric machine when the cover is secured to the housing, and wherein the outer sidewall is spaced from an edge of the cover such that a rotor of the electric machine at least partially extends in between the sidewalls. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method to form an encasement about end windings of an electric machine comprising:
-
immersing the end windings in a mold material bath and then removing the end windings for the mold material to solidify and define a base mold upon the end windings; positioning inlet and outlet placeholders extending in and out of the base mold; immersing the base mold in an epoxy bath and then removing the base mold for the epoxy to solidify and define an over mold; and dissolving the base mold via a liquid applied to the base mold such that a cavity is defined between the end windings and the over mold.
-
Specification