METHODS AND APPARATUS FOR A PERMANENT MAGNET MACHINE WITH A DIRECT LIQUID COOLED STATOR
First Claim
1. A permanent magnet machine comprising:
- a stator body having a first end and a second end, and having a plurality of generally radial slots formed therein for accepting a set of windings having a first set of end-turns at the first end and a second set of end-turns at the second end;
the stator body having a plurality of channels adjacent to the slots and extending from the first end of the stator body to the second end of the stator body, the channels configured to allow the flow of a cooling fluid therethrough.
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Accused Products
Abstract
A permanent magnetic machine includes a stator body having a first end, a second end, and a plurality of generally radial slots formed therein for accepting a set of windings having a first set of end-turns at the first end and a second set of end-turns at the second end. The stator body has a plurality of channels adjacent to the slots and extending from the first end of the stator body to the second end of the stator body, wherein the channels are configured to allow the flow of a cooling fluid therethrough. A plurality of nozzles in fluid communication with the plurality of channels are configured to spray the cooling fluid onto the first and second set of end turns.
30 Citations
20 Claims
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1. A permanent magnet machine comprising:
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a stator body having a first end and a second end, and having a plurality of generally radial slots formed therein for accepting a set of windings having a first set of end-turns at the first end and a second set of end-turns at the second end; the stator body having a plurality of channels adjacent to the slots and extending from the first end of the stator body to the second end of the stator body, the channels configured to allow the flow of a cooling fluid therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for cooling a permanent magnet machine, comprising:
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providing a stator body having a plurality of channels adjacent to a plurality of winding slots and extending from a first end of the stator body to a second end of the stator body; providing a plurality of windings within the winding slots, the windings having a first set of end turns and second set of end turns; and causing a cooling fluid to flow through the channels during operation of the permanent magnet machine. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A direct cooled stator comprising:
A stator body including a plurality of generally ring-shaped stator plates fastened together to form a stator stack, wherein each of the stator plates includes a plurality of radial slot cut-outs and a plurality of channel cutouts adjacent one or more of the slot cutouts such that the channel cutouts within the stator stack form cooling channels, and the slot cutouts within the stator stack form winding slots. - View Dependent Claims (19, 20)
Specification