鋼スリップリングと銀黒鉛質ブラシの摺動通電におけるブラシ銀含有率変化がもたらす通電メカニズムの相違

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2021/01/01

タイトル(英語): Difference in Energization Mechanism caused by Change in Brush Ag Content in Sliding Energization of Steel Slip Ring and Ag Graphite Brush

著者名: 福田　直紀（日本工業大学），澤　孝一郎（日本工業大学），上野　貴博（日本工業大学）

著者名(英語): Naoki Fukuda (Nippon Institute of Technology), Koichiro Sawa (Nippon Institute of Technology), Takahiro Ueno (Nippon Institute of Technology)

キーワード: 鋼（S45C）スリップリング，銀黒鉛質ブラシ，V-I特性，最高温度点，φ-θ理論　　Steel (S45C) slip ring，Ag graphite brush，V-I characteristic，maximum temperature point，φ-θ theory

要約(英語): A brush-slip ring system enables the transfer of electrical current between stationary and moving parts. It is widely used mainly in the excitation mechanism of AC rotating machines. In recent years, various brush-slip ring systems have been developed. Their uses range from automotive alternators to grounding mechanisms for electric railways. Therefore, brush-slip ring systems require maintenance-saving features and improved reliability.Until now, copper materials have been used for slip rings. In recent years, considering their mechanical strength and cost, the use of steel slip rings is increasing. However, the sliding contact energization characteristics of steel slip rings have not yet been elucidated.In this study, we examined the V-I characteristics of a steel slip ring (S45C) and a Ag graphite brush (Ag content 50, 60, 70, 80, and 90wt%). As a result, the electrical characteristic of the steel slip ring was found to be unique. In addition, the effect of the Ag content of the brush on this characteristic cannot be ignored. Therefore, we estimated the contact point temperature for each brush Ag content using the φ-θ theory. Based on this, the current-carrying characteristics of the steel slip ring and Ag graphite brushes were clarified for each brush Ag content.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.141 No.1 （2021）

本誌掲載ページ: 2023/07/17 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/141/1/141_7/_article/-char/ja/