Rotor for an electrical machine
First Claim
1. In a rotor device for an electrical machine having a liquid-cooled winding including at least one winding layer, said at least one winding layer including a plurality of conductors positioned in a plurality of slots in said rotor and a plurality of end turns located at an end of said rotor, each of said plurality of end turns coupling two of said plurality of conductors across said end of said rotor, the improvement comprising:
- a plurality of electrically conductive connector means for coupling liquid to said at least one winding layer, one of said plurality of connector means being associated with each of said plurality of end turns, each of said plurality of connector means including a liquid passageway therein, each of said plurality of connector means acting as one of a liquid supply connector and a liquid return connector;
a plurality of liquid chambers associated with said connector means; and
a plurality of insulated liquid coupling means for coupling said plurality of liquid chambers to said plurality of connector means, each of said plurality of coupling means coupling one of said plurality of liquid chambers to one of said plurality of connector means;
wherein each of said plurality of end turns are located equally distant from an axis of rotation of said rotor on all sides of said rotor, each of said plurality of connector means being spaced about a circle concentric with said axis of rotation; and
wherein each of said plurality of connector means includes a shank portion including a liquid passageway therein, each shank portion extending out of the plane formed by said associated end turn axially into the direction of said associated chambers, and each said shank portion forming a liquid connection between one of said plurality of insulated coupling means and one of said plurality of connector means.
1 Assignment
0 Petitions
Accused Products
Abstract
A rotor device for use in an electrical machine is disclosed which includes a liquid-cooled single or multi-layer winding whose end turns are electrically interconnected in the rotor end coil through connectors. The connectors form portions of cooling liquid supply or return lines and are connected by insulated pipes to one or more liquid chambers located at the rotor end.
14 Citations
8 Claims
-
1. In a rotor device for an electrical machine having a liquid-cooled winding including at least one winding layer, said at least one winding layer including a plurality of conductors positioned in a plurality of slots in said rotor and a plurality of end turns located at an end of said rotor, each of said plurality of end turns coupling two of said plurality of conductors across said end of said rotor, the improvement comprising:
-
a plurality of electrically conductive connector means for coupling liquid to said at least one winding layer, one of said plurality of connector means being associated with each of said plurality of end turns, each of said plurality of connector means including a liquid passageway therein, each of said plurality of connector means acting as one of a liquid supply connector and a liquid return connector; a plurality of liquid chambers associated with said connector means; and a plurality of insulated liquid coupling means for coupling said plurality of liquid chambers to said plurality of connector means, each of said plurality of coupling means coupling one of said plurality of liquid chambers to one of said plurality of connector means; wherein each of said plurality of end turns are located equally distant from an axis of rotation of said rotor on all sides of said rotor, each of said plurality of connector means being spaced about a circle concentric with said axis of rotation; and wherein each of said plurality of connector means includes a shank portion including a liquid passageway therein, each shank portion extending out of the plane formed by said associated end turn axially into the direction of said associated chambers, and each said shank portion forming a liquid connection between one of said plurality of insulated coupling means and one of said plurality of connector means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification