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US 10,566,883 B2Granted
Sliding contact member, and DC motor and generator using said sliding contact member
AssigneeNissan Motor Co., Ltd.
InventorsYoshitaka Uehara, Hirotaka Miwa, Toshikazu Nanbu, Yoshirou Noguchi
Life of this patent
Estimating the term…
Abstract
The present invention is a sliding contact member, including a powder compact portion that contains an electrically conductive diamond and an electrically conductive binder, and is provided at least on a sliding contact surface of either or both of two sliding contact members slidably in contact with each other. The sliding contact members are applied to DC motors, generators and the like.
Claims10
A sliding contact member, comprising:
- a powder compact portion that contains an electrically conductive diamond powder and an electrically conductive binder to bind the powder to each other, the powder compact portion is provided at least on a sliding contact surface of either or both of two sliding contact members slidably in contact with each other, and the powder compact portion is produced by powder deposition which keeps the electrically conductive diamond powder in powdered form, wherein the powder compact portion is configured such that the volume ratio of the electrically conductive diamond decreases in reverse proportion to a distance from the sliding contact surface in a thickness direction of the powder compact portion.
Dependencies are inferred from the claim text.