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US 8,575,798 B2Granted
Bus bar cooling unit for stator structure
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHideaki Takahashi, Takaaki Kiyono, Koji Nakanishi
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Abstract
A stator structure comprises an edgewise coil molded with resin with long ends being exposed, a bus bar connected to both ends of the coil ends, and a pump and injection holes for directly cooling the bus bar.
Claims4
A stator structure comprising:
- a core;
- a coil mounted on a tooth of said core;
- a resin molded portion covering the coil, wherein the coil has both ends protruding out of the resin molded portion;
- a bus bar directly connected to a protruding end of the coil;
- and
- a cooling unit for directly cooling the bus bar, wherein the cooling unit has a cooling oil injection unit having multiple circularly-arranged injection holes that inject the cooling oil toward the direct connection point of the bus bar and the coil.
3 more elements
Dependencies are inferred from the claim text.