Potting and insulation system for a concentrated coil soil stator
AssigneeHamilton Sundstrand Corporation
InventorsJoseph Kenneth Coldwate, Andreas C. Koenig
Life of this patent
Estimating the term…
Abstract
An assembly for an electric machine including a core with a plurality of teeth extending radially inward from the core, the plurality of teeth defining a plurality of slots for receiving coils, a plurality of coils, each coil wrapping around a respective tooth, a separator in one of the slots including a first leg joined at an angle to a second leg for separating adjacent coils within the slot, an insert between the first leg and the second leg for at least partially filling a space between the first leg and the second leg, and a potting filling space within the slot between the separator, the plurality of coils, and the insert.
Claims17
An assembly for an electric machine comprising:
- a core having a plurality of teeth extending radially inward from the core, the plurality of teeth defining a plurality of slots for receiving coils;
- a plurality of coils, each coil wrapping around a respective tooth;
- a separator in one of the slots including a first leg joined at an angle to a second leg for separating adjacent coils within the slot, wherein the first leg is connected to a second leg of an adjacent separator by a cord;
- an insert between the first leg and the second leg for at least partially filling a space between the first leg and the second leg;
- and
- a potting filling space within the slot between the separator, the plurality of coils, and the insert.
An assembly for an electric machine comprising:
- a core having a plurality of teeth extending radially inward from the core, the plurality of teeth defining a plurality of slots for receiving coils;
- a plurality of coils, each coil wrapping around a tooth;
- a deformable “V” shaped separator including a first leg joined at an angle to a second leg for separating adjacent coils;
- a deformable insert between the first leg and the second leg for expanding a space between the first leg and the second leg, wherein the first leg is connected to a second leg of an adjacent separator by a cord;
- a thermal sensor located within the deformable insert;
- and
- an epoxy potting covering the plurality of coils, and being absorbed by the deformable “V” shaped separator and the deformable insert.
A method for insulating coils comprising:
- placing a separator including a first leg joined at an angle to a second leg in a slot between adjacent teeth and adjacent coils forming a space between the legs of the separator and a wall of an electric machine;
- inserting an insert into the space;
- potting the coils, the separator, and the insert and
- connecting the first leg to a second leg of an adjacent separator by a cord.
Dependencies are inferred from the claim text.