ROTOR, ROTARY ELECTRIC MACHINE AND COMPRESSOR

• Main Authors: TAMURA YUKI, AKITA HIROYUKI, SHONO KAZUHIRO, IWASAKI TOSHIAKI, MASUMOTO KOJI
• Format: Patent
• Language: English; Japanese
• Published: 24.11.2015
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a rotor of which the configuration is simplified and which improves cooling capabilities of a permanent magnet and a stator coil, a rotary electric machine with the rotor, and a compressor with the rotary electric machine packaged therein.SOLUTION: A rotor 100 is formed from a rotor core 3 and an end plate 2. The rotor core 3 is formed by laminating magnetic plates which each include axial flow passage holes 52 and in which circumferential end portions of magnet holes 51 become magnet hole cavity parts 51b. A plurality of magnetic plates are groove formed magnetic plates 5a in which outer peripheral side radial flow passage grooves 53a connecting the magnetic hole cavity parts 51b and outer peripheries of the magnetic plates and inner peripheral side radial flow passage grooves 53b connecting the axial flow passage holes 52 and the magnet hole cavity parts 51b are provided on their surfaces. In the end plate 2, a gaseous coolant intake 2a is provided at a position opposite to the axial flow passage holes 52. 【課題】構成が単純であり、永久磁石と固定子コイルの冷却能力が優れている回転子、この回転子を備えた回転電機およびこの回転電機が搭載された圧縮機を得ることである。【解決手段】回転子１００が、軸方向流路孔５２を有し且つ磁石孔５１の周方向の端部が磁石孔空隙部５１ｂとなっている磁性板を積層して形成しており、複数の磁性板が、磁石孔空隙部５１ｂと磁性板の外周とを接続する外周側径方向流路溝５３ａと、軸方向流路孔５２と磁石孔空隙部５１ｂとを接続する内周側径方向流路溝５３ｂとが表面に設けられている溝形成磁性板５ａである回転子鉄心３と、軸方向流路孔５２と対向する位置に気体冷媒取入口２ａを設けた端板２とで形成されているものである。【選択図】図２