Stator cooling system and motor

Abstract

The invention belongs to the technical field of motor cooling, and discloses a stator cooling system and a motor. The stator cooling system comprises a shell, a stator and a flow guide piece. The stator is inserted into the inner side of the shell, the stator comprises a stator iron core and end windings, the two end windings are arranged at the two axial ends of the stator iron core respectively, the stator iron core is provided with a cooling flow channel, the end face of the stator iron core is provided with a jet orifice, and the jet orifice is communicated with the cooling flow channel; the two flow guide pieces are arranged on the inner side of the shell and arranged at the two axial ends of the stator respectively, the flow guide pieces and the stator are arranged in a spaced mode, and the flow guide pieces are used for guiding the cooling liquid sprayed out of the spraying opening to the end winding. According to the invention, the cooling liquid in the cooling flow channel is sprayed out through the jet orifice, the flow guide piece only plays a role in flow guide and does not play a role in sealing, and the flow guide piece and the stator core have no installation matching relation and are only installed on the shell, so that the requirement on the assembly precision of the flow guide piece is not high, the installation process is simple, the assembly efficiency is improved, and the product cost is reduced.

Description

technical field [0001] The invention relates to the technical field of motor cooling, in particular to a stator cooling system and a motor. Background technique [0002] Motor stator cooling The main cooling parts are the stator core and the end winding. Generally, a cooling channel is set on the motor housing, and a guide ring is installed at the end of the stator core. The coolant in the cooling channel is sprayed from the oil injection hole on the guide ring to the end winding, which requires guide The outer peripheral surface of the flow ring is tightly bonded to the inner wall of the casing, and the end surface of the flow guide ring is tightly bonded to the end surface of the stator core. The installation accuracy of the flow guide ring is high and the assembly process is complicated. Contents of the invention [0003] The purpose of the present invention is to provide a stator cooling system and a motor, which have low requirements on the assembly accuracy of the f...

AI Technical Summary

Problems solved by technology

Generally, a cooling channel is set on the motor housing, and a guide ring is installed at the end of the stator core. The coolant in the cooling channel is sprayed from the oil injection hole on the guide ring to the end winding, which requires guide The outer peripheral surface of the flow ring is sealed and bonded to the inner wall of the housing, and the end face of the guide ring is sealed and bonded to the end face of the stator core. The installation accuracy of the guide ring is high and the assembly process is complicated.

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