CPC H05K 7/20172 (2013.01) [F04D 17/16 (2013.01); F04D 25/0606 (2013.01); F04D 29/281 (2013.01); F04D 29/5806 (2013.01); F04D 29/5813 (2013.01); G06F 1/203 (2013.01)] | 20 Claims |
1. A fan comprising:
a center shaft;
fan blades that extend from the center shaft, wherein the center shaft and the fan blades are a single component made from a same non-magnetic material; and
a plurality of magnets, wherein a magnet from the plurality of magnets is located on an outside portion of at least two of the fan blades, wherein stator coils interact with the plurality of magnets to drive the fan blades around the center shaft, wherein a fan tip to stator coil distance for the fan blades that do not include anter magnet from the plurality of magnets is four (4) millimeters or more and a magnet to stator coil distance is one (1) millimeter or less such that an end of each of the plurality of magnets extends past a tip of the fan blades that do not include ara magnet by at least three (3) millimeters or more.
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