Patent ID: 6916149

Claim:
A blower comprising: a motor electrically driven to rotate for providing a rotating power, said motor having a pivot protruded outwards from a side thereof; an impeller housing including a first rear cover and a second rear cover; the first rear cover mounted at the side of said motor where said pivot is protruded outwards; an entrance airway and an exit airway mounted at a side of said motor and in communication respectively with two through holes of said first rear cover; a n impeller mounted on said pivot and received in impeller housing to rotate along with said pivot; the second rear cover being saucer-like and having a through hole at the center thereof, said second rear housing being mounted to said first rear housing to enable said pivot to run through said through hole thereof and to encase said impeller; and a heat-dissipating device mounted outside said second rear housing and driven by said pivot to generate rapid flowing air outside said second rear housing.