WATERPROOF AXIAL FLOW FAN
First Claim
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1. A waterproof axial flow fan comprising:
- a rotor having a rotating shaft pivotally supported by a bearing in a rata table manner, an impeller provided to a tip of the rotating shaft, and a rotor cover;
a stator having a winding and a circuit board, a surface of which is coated with an electrically insulating synthetic resin; and
at least one ring collection groove part formed in a resin surface opposing to the rotor cover at an apex of the stator so as to surround a tip of a bearing holding part for holding the bearing.
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Abstract
A waterproof axial flow fan includes: a rotor having a rotating shaft pivotally supported by a bearing in a rotatable manner, an impeller provided to a tip of the rotating shaft and a rotor cover; a stator having a winding and a circuit board, a surface of which is coated with an electrically insulating synthetic resin; and at least one ring collection groove part formed in a resin surface opposing to the rotor cover at an apex of the stator so as to surround a tip of a bearing holding part for holding the bearing.
39 Citations
18 Claims
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1. A waterproof axial flow fan comprising:
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a rotor having a rotating shaft pivotally supported by a bearing in a rata table manner, an impeller provided to a tip of the rotating shaft, and a rotor cover; a stator having a winding and a circuit board, a surface of which is coated with an electrically insulating synthetic resin; and at least one ring collection groove part formed in a resin surface opposing to the rotor cover at an apex of the stator so as to surround a tip of a bearing holding part for holding the bearing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification