Electric machine for vehicle
First Claim
1. An electric machine for a vehicle comprising:
- a stator including slots and a yolk region defining a plurality of channels extending between opposing end faces;
windings extending through the slots and including end windings adjacent the end faces;
a rotor disposed within the stator; and
first and second annular covers each defining a cavity having a plurality of walls partitioning the cavity into a plurality of cooling chambers that are circumferentially isolated from each other, wherein each of the covers is attached to one of the end faces such that a corresponding one of the end windings is disposed within one of the cavities, and such that each of the channels is in direct fluid communication with a corresponding one of the cooling chambers of the first cover and with a corresponding one of the cooling chambers of the second cover.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric machine for a vehicle includes a stator having slots and a yolk region defining a plurality of channels extending between the opposing end faces of the stator. Windings extend through the slots and have end windings adjacent to the end faces. A rotor is disposed within the stator. The electric machine also includes first and second annular covers each defining a cavity having a plurality of walls partitioning the cavity into a plurality of cooling chambers that are circumferentially isolated from each other. Each of the covers is attached to one of the end faces such that a corresponding one of the end windings is disposed within one of the cavities, and such that each of the channels is in direct fluid communication with a corresponding one of the cooling chambers of the first cover and with a corresponding one of the cooling chambers of the second cover.
48 Citations
20 Claims
-
1. An electric machine for a vehicle comprising:
-
a stator including slots and a yolk region defining a plurality of channels extending between opposing end faces; windings extending through the slots and including end windings adjacent the end faces; a rotor disposed within the stator; and first and second annular covers each defining a cavity having a plurality of walls partitioning the cavity into a plurality of cooling chambers that are circumferentially isolated from each other, wherein each of the covers is attached to one of the end faces such that a corresponding one of the end windings is disposed within one of the cavities, and such that each of the channels is in direct fluid communication with a corresponding one of the cooling chambers of the first cover and with a corresponding one of the cooling chambers of the second cover. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An electric machine comprising:
-
a stator including cooling channels extending between opposing ends, and end windings adjacent to the ends; and a cover defining a cavity and including walls partitioning the cavity into compartmentalized, circumferentially isolated cooling chambers, wherein each of the walls defines a cutout that receives a portion of a corresponding one of the end windings therein, and wherein each of the channels is in direct fluid communication with one of the chambers. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
-
-
15. An electric machine comprising:
-
a stator including ends and a slot extending therebetween; windings extending through the slot such that a cooling channel is defined between the windings and a periphery of the slot, and including end windings adjacent to the ends; and a cover defining a cavity receiving one of the end windings and having walls defining circumferentially isolated cooling chambers, wherein the channel is in direct fluid communication with one of the chambers. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification