Patent ID: 9631638
Date: 2017-04-25
CPC Classifications: F04D

Claim:
1. A thinned heat dissipation fan with core reversely installed, including: a base, including a bottom plate and a lateral wall formed at the periphery of the bottom plate, wherein the bottom plate being formed with a core welding hole and a plurality of fasten pieces upwardly protruded and arranged at an outer side of the core welding hole; a circuit unit, disposed on the bottom plate; a core, having a bottom end welded in the core welding hole of the bottom plate; a coil set, having a central portion formed with a fasten hole, wherein the plural fasten pieces being latched and fastened at an inner edge of the fasten hole; and a rotor set, including a hub, a plurality of blades disposed at the periphery of the hub, a bearing module and a permanent magnet disposed at inner sides of the plural blades, wherein the hub being formed with a bearing opening, the bearing module being fastened in the bearing opening, and the core being inserted in the bearing module, wherein the bottom plate of the base is a metal plate, and the plural fasten pieces are formed through punching the bottom plate, wherein the coil set includes a frame, a plurality of insulation racks disposed on the frame and a plurality of coils correspondingly wound on the plural insulation racks; and the fasten hole is formed at the center of the frame and fastened on the plural fasten pieces with a tightly fitting means.