Cooling system for an asynchronous rotor

摘要

A cage rotor for an synchronous machine includes a laminated rotor core, shorting bars arranged inside the laminated rotor core, shorting rings which are cast onto the laminated rotor core and which electrically interconnect the shorting bars to front sides of the laminated rotor core, and heat pipes introduced into the laminated rotor core in the axial direction such that they protrude onto the front side from the laminated rotor core and protrude into the shorting rings.

主权项

1. A squirrel cage rotor for an asynchronous machine comprising:
a laminated rotor core; shorting bars arranged inside the laminated rotor core; shorting rings made of aluminum and cast onto the laminated rotor core to connect the shorting bars with one another electrically at end faces of the laminated rotor core; heat pipes made of copper and inserted in the laminated rotor core in an axial direction, said heat pipes being spaced from the shorting bars in a transverse direction and extending out of the laminated rotor core into the shorting rings; and an alloy layer applied on the heat pipes in zones in which the heat pipes are arranged inside the shorting rings, wherein the shorting rings are cast shorting rings and surround axial ends of the shorting bars and axial ends of the heat pipes around a periphery and at an axial end face of each of the shorting bars and of each of the heat pipes.