ROTATOR OF ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE INCLUDING THE ROTATOR

• Main Authors: KANO YUJI, MISAKI SEIGO, UMEZAKI YOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 06.07.2015
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a rotator of rotary electric machine and a rotary electric machine including the rotator capable of reducing concentration of stress generated around a positioning hole for positioning laminated magnetic steel sheets relative to a circumferential direction.SOLUTION: The rotator of rotary electric machine has a rotor core 4 which is formed by laminating plural magnetic steel sheets. The rotor core includes: plural magnet insertion holes 9 for inserting permanent magnets 8; plural wall-cutout holes 10 formed at the inner side of the magnet insertion holes in a diameter direction; and plural positioning holes 11 which are formed independently from the magnet insertion holes and the wall-cutout holes for positioning magnetic steel sheets laminated relative to a circumferential direction. Each of the positioning holes is formed so as to be included in a bridge part 12 formed between the wall-cutout holes. 【課題】電磁鋼板積層時の周方向に対する位置規定用の孔（位置決め孔）の周囲に発生する応力集中を緩和できる回転電機の回転子、及びこれを備えた回転電機を提供する。【解決手段】複数の電磁鋼板を積層して形成される回転子鉄心４を備える回転電機の回転子において、回転子鉄心は、永久磁石８が挿入される磁石挿入孔９と、磁石挿入孔の内径側に複数設けられた肉盗み孔１０と、磁石挿入孔及び肉盗み孔から独立して設けられた、電磁鋼板積層時の周方向に対する位置規定用の位置決め孔１１と、を備え、位置決め孔が、肉盗み孔によって形成されるブリッジ部１２に収まるように設けられた回転電機の回転子。【選択図】図３