| 摘要 |
<p>A planar carbon segment commutator assembly (10) made by forming an annular conductor substrate (50) with an annular front projection (18) extending integrally and axially from a front surface (14) of the substrate (50). An annular carbon disk is (62) formed on the conductor substrate (50) by overmolding a carbon compound onto the front surface (14) of the conductor substrate (50) and around the annular front projection (18). The concuctor substrate (50) is mounted on an insulating hub (12). Electrically isolated, circumferentially-spaced commutator segments (22) and corresponding mechanically interlocked conductor sections (16) are formed by making radial cuts (74) through the annular carbon disk (62) and the metal substrate (50), respectively. According to one embodiment, each of the front projections (18) has a greater cross-sectional area at a distal end than at a base end to mechanically lock the commutator segments (22) onto the conductor sections (16).</p> |
