Axial flow fan for external rotor

F - Mech Eng,Light,Heat,Weapons – 04 – D

Patent

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Details

F04D 29/32 (2006.01) F01D 5/02 (2006.01) F01D 5/30 (2006.01) F04D 25/08 (2006.01) F04D 29/34 (2006.01) F04D 29/64 (2006.01)

Patent

CA 2710896

An axial flow fan for an external rotor, comprising an axial flow blade, a support, and an external rotor motor, wherein the support comprises an annular cylinder and multiple installation pins extended from the outside of the annular cylinder, and the axial flow blade is disposed on the installation pin, the annular cylinder is fit on an external rotor of the external rotor motor, and inner wall of the annular cylinder is interference-fit with outer wall of the external rotor. The invention features simple and convenient assembling, reliable connection, high production efficiency, low requirement for workers, and low production cost.

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