Battery-powered, low-noise backpack blower

A backpack blower, comprising:

• a fan frame, having a bottom plate and a motor plate, the motor plate having an opening of a certain area which functions as an air inlet, the bottom plate and motor plate being connected to and separated by a side wall, and both being generally ring shaped, except having an air outlet area;
• a fan assembly positioned within the fan frame, the fan assembly having a bottom ring and a top ring, and spaced apart from each other by a plurality of vanes, each vane angled and curved the same as all the other vanes with respect to the center of the bottom ring;
• a motor having a stator, and a motor shaft rotatable with respect to the stator, the stator connected to the fan frame, and the shaft connected to the fan assembly, so as to rotate the fan assembly within the fan frame, and thus move air from the air inlet to the air outlet;
• a removable battery pack having electrical connectors;
• mating electrical connectors mounted to the fan frame;
• and
• a controller electrically connected to the motor and to the battery pack, for using power from the battery pack to energize the motor and thus rotate the fan to move air from the air inlet to the air outlet.

A backpack blower, comprising:

• a fan frame, having an air inlet of a certain area, and having an air outlet of a lesser area;
• a fan assembly positioned within the fan frame;
• a motor having a rotatable motor shaft connected to the fan assembly so as to rotate the fan assembly with respect to the fan frame, and thus move air from the air inlet to the air outlet;
• a battery pack;
• a controller connected to the motor and to the battery pack, for applying power from the battery pack to energize the motor and thus rotate the fan to move air from the air inlet to the air outlet;
• and
• a harness frame connected to the fan frame, positioned in the area of an operator's back when the blower is in use, and having a harness frame opening in air flow communication with the air inlet, so that, when the motor is rotating the fan assembly, air is drawn in through the harness frame opening, thereby cooling the operator.