Patent ID: 9065313
Filing Date: 2015-06-23
Classification: F28D,F28F,H02K

Abstract:
1. A motor with centrifugal heat dissipation device, comprising: at least one shaft internally defining a hollow space and having a first end and an opposite second end; and the first and second ends being communicable with the hollow space; a centrifugal heat dissipation device including a main body having a shaft hole, a heat-absorption zone, and a heat-transfer zone; the heat-transfer zone having a radially outer side connected to the heat-absorption zone and a radially inner side connected to the shaft hole; the shaft hole axially extending through the main body, and the shaft being fitted in the shaft hole; a plurality of silicon steel sheets being externally fitted around the main body of the centrifugal heat dissipation device; and a housing being internally provided with a magnetic member, which is located corresponding to but spaced from the silicon steel sheets when the centrifugal heat dissipation device and the shaft are mounted in the housing; and the housing having at least one end being an open end, to which a cap is connected to close the housing, wherein the heat-absorption zone is radially outward extended from only a partial axial length of the heat-transfer zone, and defines a first transverse surface and an opposite second transverse surface; and the silicon steel sheets being in contact with one of the first and the second transverse surface of the heat-absorption zone.