Abstract: The present disclosure relates to a motor cooling device and a motor including an oil cooling system. An embodiment of the present disclosure provides a motor including a stator assembly including an end coil which includes a plurality of layers and is externally exposed, an oil guide disposed in front of or behind the stator assembly, and a partition wall disposed above and spaced apart from the end coil, wherein the oil guide includes a guide body, one inlet hole formed in one surface of the guide body, and a plurality of outlet holes formed in another surface of the guide body, wherein the plurality of outlet holes are formed in different shapes according to positions at which the plurality of outlet holes are disposed.

Abstract: A slip ring device for motor includes a shaft having a hollow therein, a slip terminal assembly including a first slip terminal portion and a second slip terminal portion and a body portion coupled to the shaft and electrically isolating the first slip terminal portion from the second slip terminal portion, and a fixing ring disposed on the slip terminal assembly and fixing the slip terminal assembly to the shaft and further includes a guide portion formed on an outer surface of the coupling portion in an insertion direction of the slip terminal assembly.