Cooling structure for rotary electric machine
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United States of America Patent
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Mar 3, 2015
Grant Date -
Apr 19, 2012
app pub date -
Oct 18, 2011
filing date -
Oct 19, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cooling structure for a rotary electric machine uses coolant to cool coil end portions that protrude outward, one from each end surface of a stator core, in a stator that includes a stator core and coils that are wound in a circumferential direction of the stator core. This cooling structure includes a lead side cover member that covers a lead side coil end portion to which a lead wire that supplies electricity to the coils is connected, and forms a first coolant chamber within which coolant is stored; and a non-lead side cover member that covers a non-lead side coil end portion positioned opposite the lead side coil end portion in the axial direction, and forms a second coolant chamber within which coolant is stored. A coolant communicating path is provided that communicates the first and second coolant chambers in a manner that enables coolant to flow therebetween.
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