A study on commutation arc and wear of brush in gasoline of D.C. motor

Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts Pub Date : 1993-09-27 DOI:10.1109/HOLM.1993.489672

N. Shimoda, G. Mitsumatsu, H. Kanoh, K. Sawa

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引用次数: 14

Abstract

Recently many small D.C. motors have been used for automotive electrical equipment. In particular, motors for fuel pumps play an important role of supplying the engine with gasoline. Therefore, high reliability and long life are required for the motors. The feature of these motors is that gasoline flows inside the motor and commutation is done in gasoline. This paper is a fundamental investigation of the commutation phenomena in gasoline. We have already reported in a previous paper on fundamental characteristics of the commutation arc such as arc duration, arc voltage and residual current. In this paper, the experimental results of arc duration, residual current and arc voltage are reported for both commutator materials of Cu and Ag/Ni. And the wear of a brush made of metallic-carbon is measured, respectively on Cu and Ag/Ni commutators. When the silver-nickel commutator is used, brush wear is slighter in gasoline than in air. When the copper commutator is used, brush wear in gasoline is similar to that in air. The influence of gasoline on commutation arc voltage is also described.

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直流电机汽油机换向电弧及电刷磨损的研究

近年来，许多小型直流电机已用于汽车电气设备。特别是，燃油泵的电动机在向发动机提供汽油方面起着重要的作用。因此，对电机要求高可靠性和长寿命。这些电动机的特点是汽油在电动机内部流动，换向在汽油中进行。本文是对汽油换相现象的基础性研究。我们在之前的文章中已经报道了换相电弧的基本特性，如弧时、弧电压和剩余电流。本文报道了Cu和Ag/Ni两种整流子材料的电弧持续时间、剩余电流和电弧电压的实验结果。测量了金属碳刷在Cu换向器和Ag/Ni换向器上的磨损。当使用银镍换向器时，电刷在汽油中的磨损比在空气中的磨损要轻。当使用铜换向器时，汽油中的电刷磨损与空气中的相似。还叙述了汽油对换向电弧电压的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts

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