Carbon grounding brush
AssigneeTRIS Inc.
InventorsTaisuke Hattori, Yuma Fukuta
Life of this patent
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Abstract
A carbon grounding brush has a sliding surface that slides on and grounds a driving shaft transmitting driving force and exposed to an insulating liquid. A slit is provided on the sliding surface, and at least one end of the slit is located on one side of the sliding surface. The slit introduces into the slit the insulating liquid pressed towards the sliding surface by the rotation of the driving shaft and discharges the insulating liquid from the one end of the slit. Thus, the contact resistance between the driving shaft and the sliding surface is made small, and electrical corrosion and electromagnetic noises are reduced.
Claims7
A carbon grounding brush comprising:
- a sintered body of carbon having a shape of a rectangular cuboid, wherein
- a sliding surface of the sintered body is configured to slide on and ground a driving shaft transmitting a driving force and be exposed to an insulating liquid,
- said sliding surface is provided with at least a slit,
- at least one end of said slit is extended to at least one side of the sliding surface, and
- the slit is configured to introduce into the slit the insulating liquid pressed by rotation of the driving shaft towards the sliding surface and discharge the insulating liquid from the one end.
Dependencies are inferred from the claim text.