ROTOR FOR ROTARY ELECTRIC DEVICES

• Main Authors: HASHIDATE YOSHIO, TANAKA SHOICHI, KAHATA YASUO, UEMATSU JUNICHI, TANIYAMA YOSHIHIRO, SHIODA KAZUNORI
• Format: Patent
• Language: English; Japanese
• Published: 29.11.2018
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a rotor for rotary electric devices with an enhanced cooling performance capable of effectively cooling a rotor coil.SOLUTION: A rotor for rotary electric devices has a radial through flow path extending throughout a rotor slot in a radial direction of a revolving shaft, which is configured so that a coolant gas flows therein and flows out therefrom via a sub-slot. Here, multiple radial through flow paths are disposed in an axial direction and are configured so that the coolant gas flows into each of the multiple radial through flow paths via the sub-slot. An axial direction flow path extends in the axial direction in the rotor slot. The axial direction flow path communicates radial through flow paths neighboring in the axial direction in the multiple radial through flow paths.SELECTED DRAWING: Figure 1 【課題】冷却性能を向上し、回転子コイルを効果的に冷却する。【解決手段】回転電機の回転子において、径方向貫通流路は、回転子スロットにおいて回転軸の径方向に延在して貫通しており、サブスロットを介して冷却ガスが流入して外部へ流出する。ここでは、径方向貫通流路が軸方向に複数が配置されており、複数の径方向貫通流路のそれぞれにサブスロットから冷却ガスが流入する。軸方向流路は、回転子スロットにおいて軸方向に延在している。軸方向流路は、複数の径方向貫通流路のうち軸方向で隣り合う径方向貫通流路の間を連通させている。【選択図】図１