Patent ID: 8109713

Claim:
A heat-dissipating fan comprising: a housing including an air inlet and an air outlet; a stator received inside the housing; a rotor including a shaft and an impeller fixed to one end of the shaft, with the impeller facing the stator and having a plurality of blades, with one radially outer free end of each blade having a first corner close to the air inlet and a second corner close to the air outlet, with a first peripheral spacing defined as a projection of a first distance on a plane perpendicular to the shaft and the first distance being between adjacent first and second corners which are respectively on any two adjacent blades; and a retaining member including a retaining plate and removably mounted to the housing at a portion delimiting the air inlet, with the retaining plate extending to be above the air inlet and within a rotational area of the plurality of blades in an axial direction of the shaft, with one end of the retaining plate which extends to be above the air inlet having a first edge corner and a second edge corner, with a second peripheral spacing between the first and second edge corners being larger than the first peripheral spacing.