Drone with magnet fluid sealed bearing unit and drive motor having the bearing unit
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United States of America Patent
Stats
-
Jan 5, 2021
Grant Date -
Mar 1, 2018
app pub date -
Aug 29, 2017
filing date -
Aug 31, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
One object is to provide a drone capable of achieving desired performance by preventing entry of foreign matter such as water droplets or dust particularly into a power portion thereof. A drone of the present invention is provided with a fixed section having a motor housing for housing a motor therein and a rotary section having a propeller shaft supported via a bearing so as to be rotatable with respect to the motor housing and configured to rotate integrally with the propeller. In an opposed portion where fixed-side components constituting the fixed section and rotary-side components constituting the rotary section are opposed to each other, there is provided a foreign matter entry prevention unit configured to prevent foreign matter from entering an inside of the motor housing.
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