Heat dissipation assembly for electric machine and precision electric machine

Abstract

This utility model belongs to the field of motor heat dissipation technology, specifically relating to a heat dissipation component for a motor, comprising: a housing with an annular heat dissipation cavity on its side wall, wherein a spiral ring is disposed within the heat dissipation cavity, the spiral ring being coaxially disposed with the heat dissipation cavity to form a spiral flow channel within the heat dissipation cavity; a pair of arc-shaped covers, the covers being joined together and covering the heat dissipation cavity, the inner wall of the covers being fitted with the spiral ring to seal the spiral flow channel; and, the side wall of the covers being provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet being located at opposite ends of the spiral flow channel; the spiral ring is disposed within the heat dissipation cavity on the side wall of the housing to form a spiral flow channel (the spiral ring can be fixed within the heat dissipation cavity by welding), and a pair of interlocking covers are disposed on the outside of the heat dissipation cavity to complete the sealing of the spiral flow channel, and the cooling medium is circulated through the liquid inlet and the liquid outlet, thereby avoiding the need for deep hole machining of the housing and achieving water cooling of the motor.

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