Stator cooling
First Claim
Patent Images
1. An energy storage apparatus comprising:
- a rotor;
a stator;
said stator including a bobbin having a cylindrical shape and open at each end;
at least one fin extending longitudinally on an exterior surface of said bobbin;
at least one cooling slot adjacent said fin;
a phase winding longitudinally and circumferentially encircling said bobbin;
said winding including an end turn at an end of said bobbin;
said at least one fin separating said winding; and
at least one cooling passage extending circumferentially through said end turn for transporting a cooling fluid therethrough to cool said winding.
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Abstract
The present invention is an energy storage apparatus having a rotor and a stator. The stator includes a bobbin having a cylindrical shape and open at each end. The bobbin includes at least one fin extending longitudinally on an exterior surface of the bobbin. The bobbin also includes a phase winding longitudinally and circumferentially encircling said bobbin. The winding is separated by at least one fin. The bobbin also includes at least one cooling passage for transporting a cooling medium.
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Citations
7 Claims
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1. An energy storage apparatus comprising:
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a rotor; a stator; said stator including a bobbin having a cylindrical shape and open at each end; at least one fin extending longitudinally on an exterior surface of said bobbin; at least one cooling slot adjacent said fin; a phase winding longitudinally and circumferentially encircling said bobbin; said winding including an end turn at an end of said bobbin; said at least one fin separating said winding; and at least one cooling passage extending circumferentially through said end turn for transporting a cooling fluid therethrough to cool said winding. - View Dependent Claims (2, 3, 4)
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5. An energy storage apparatus comprising:
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a rotor; a stator; said stator including a bobbin having a cylindrical shape and open at each end; a plurality of fins extending longitudinally on an exterior surface of said bobbin; a preformed phase winding longitudinally and circumferentially encircling said bobbin, wherein said fins separate said winding; said winding including an end turn at an end of said bobbin; a plurality of cooling passages extending circumferentially through said end turn for transporting a cooling fluid therethrough; a cooling slot longitudinally extending therebetween each one of said fins; and each one of said fins, said cooling slot and said cooling passage dissipating rising heat in said stator. - View Dependent Claims (6, 7)
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Specification