水冷・油冷を併用したモータの冷却効果および損失評価の検討

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: 2018/05/01

タイトル(英語): Study of Cooling Performance and Losses Evaluation for Water- and Oil-cooled Motor

著者名: 杉本　愼治（（株）日立製作所），郡　大祐（（株）日立製作所）

著者名(英語): Shinji Sugimoto (Hitachi, Ltd., Hitachi Reserch Laboratory), Daisuke Kori (Hitachi, Ltd., Hitachi Reserch Laboratory)

キーワード: 水冷，油冷，流体摩擦損　　water-cooled，oil-cooled，fluid friction loss

要約(英語): This paper describes the fluid friction loss that occurs in the part of the rotor that is soaked in oil coolant. The cooling system of this rotating machine includes both oil and water-cooling for the purpose of the reducing the size and weight. We developed a test motor and measured the fluid friction loss and temperature. As a result, (1) it was confirmed that the water- and oil-cooled motor can reduce 24% of the coil and 18% of the coil-end (top) compared with a water-cooled motor; (2) it was confirmed that the water- and oil-cooled motor can increase the output power by 12% compared with a water-cooled motor; (3) it was confirmed that the calculation accuracy of the frictional loss of the oil seal is good (about 6%) at a rotation speed of 5000min-1, (4) it was clarified that the fluid friction loss in the part of the rotor that is soaked in oil coolant can be calculated at a precision of 30%; (5) and it was clarified that the losses in the water- and oil-cooled motor including fluid friction loss, are the same as the losses in a water-cooled motor, and that the water- and oil-cooled motor has better cooling performance than a water-cooled motor.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.138 No.5 （2018） 特集：平成29年産業応用部門大会

本誌掲載ページ: 378-383 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/138/5/138_378/_article/-char/ja/