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    • 5. 发明授权
    • Drum commutator for electrical machines
    • 电机用滚筒换向器
    • US5422528A
    • 1995-06-06
    • US164350
    • 1993-12-09
    • Detlef Prahl
    • Detlef Prahl
    • H01R39/04H01R43/06H02K15/00H01R39/16
    • H01R39/04Y10T29/49011
    • A drum commutator for electrical machines has an isolating material drum and a plurality of commutator plates composed of an electrically conductive material, the commutator plates being mounted on a periphery of the isolating material drum near one another and electrically separated from one another by axial slots, each of the commutator plates being provided with a surface coating composed of carbon material and with a connecting lug for an armature winding of an electrical machine, each of the commutator plates having at least one depression at its lower side placed on the isolating material drum and being also provided with a radial passage which opens in the depression and has a reduced size relative to the depression, the carbon material of the surface coating filling the passage and the depression as a one-piece structure.
    • 用于电机的鼓式换向器具有隔离材料鼓和由导电材料构成的多个换向器板,换向器板彼此相邻地安装在隔离材料鼓的周边上并且通过轴向槽彼此电分离, 每个换向器板设置有由碳材料构成的表面涂层和用于电机的电枢绕组的连接凸耳,每个换向器板在其下侧具有放置在隔离材料鼓上的至少一个凹部, 还设有径向通道,其在凹陷中开口并且相对于凹陷具有减小的尺寸,表面涂层的碳材料填充通道和凹陷作为一体式结构。