ROTARY ELECTRIC MACHINE

To efficiently cool a coil by injecting a coolant to a coil end over a wide range.SOLUTION: A rotary electric machine 110 comprises: a shaft 160 which is connected with a rotor 150; and an opposite member 170 which is fixed to the shaft 160 and faces an edge face R0 of the rotor 150 via a space Sp....

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Bibliographic Details
Main Authors SATO DAISUKE, AOYANAGI SHIGEHISA, TAKAHATA RYOICHI, MAEKAWA NORIYUKI, IWANO RYUICHIRO
Format Patent
LanguageEnglish
Japanese
Published 07.02.2023
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Summary:To efficiently cool a coil by injecting a coolant to a coil end over a wide range.SOLUTION: A rotary electric machine 110 comprises: a shaft 160 which is connected with a rotor 150; and an opposite member 170 which is fixed to the shaft 160 and faces an edge face R0 of the rotor 150 via a space Sp. The shaft 160 has: an internal flow path 161 through which a coolant flows; and a continuous hole 162 which connects the internal flow path 161 with the space Sp. The opposite member 170 has a plurality of first blade parts 172 arranged along a circumferential direction. The first blade parts 172 have a first inclined plane S0 inclining in a radial direction so that a distance to the edge face R0 is smaller as it advances from a radially inner side to an outer side. The first inclined plane S0 contacts with the coolant injected from the internal flow path 161 through the continuous hole 162 by means of rotation of the shaft 160 and injects the coolant to a coil end 137.SELECTED DRAWING: Figure 7 【課題】コイルエンドに対して冷媒を広範囲に噴射することにより、コイルを効果的に冷却する。【解決手段】回転電機110は、回転子150に接続されるシャフト160と、シャフト160に固定され回転子150の端面R0と空間Spを介して対向する対向部材170と、を備える。シャフト160は、冷媒が流れる内部流路161と、内部流路161と空間Spとを連通する連通孔162と、を有する。対向部材170は、周方向に沿って配置される複数の第1羽根部172を有している。第1羽根部172は、径方向内側から外側に向かうにしたがって端面R0までの距離が短くなるように、径方向に対して傾斜する第1傾斜面S0を有している。第1傾斜面S0は、シャフト160の回転により内部流路161から連通孔162を通じて噴射される冷媒と接触し、その冷媒をコイルエンド137に向かって噴射する。【選択図】図7
Bibliography:Application Number: JP20210121443