发明名称 |
Rotor of rotary-electric machine |
摘要 |
<p>In a rotor (4) of a rotary-electric machine, in order to improve a cooling performance of a rotor winding, in a rotor winding on an end portion of the rotor (4) in an axial direction, the rotor winding being held by a retaining ring (3) of the rotor winding formed by laminating a plurality of conductors (11-19) in slots (6) of a rotor iron core (4a) extending in an axial direction and having a plurality of slots (6) formed at predetermined intervals in a peripheral direction, ventilation channels (41-49) through which cooling air (9) flows are formed in the surfaces of the conductors (11-19) along a longitudinal direction. The ventilation channels (41-49) have air inlet holes (21-29) which guide the cooling air (9) and exhaust holes (51-59) which exhaust the cooling air (9), the conductors (11-19) provided with the ventilation channels (41-49) which are formed in the surfaces of the conductors (11-19) along the longitudinal direction and through which the cooling air (9) flows are laminated to constitute the rotor winding, and the conductors (11-19) include openings of the air inlet holes (21-29) in bottoms of the conductors (11-19) on a side opposite to a side on which the ventilation channels (41-49) are formed.</p> |
申请公布号 |
EP2333937(A1) |
申请公布日期 |
2011.06.15 |
申请号 |
EP20110001588 |
申请日期 |
2006.10.16 |
申请人 |
HITACHI, LTD. |
发明人 |
HATTORI, KENICHI;SAEKI, MITSURU;SEMBA, AKITOMI;KAKIMOTO, TADAAKI;WATANABE, TAKASHI;SUZUKI, MANABU;SHIBATA, TAKASHI;MURAMATSU, SEIJIRO |
分类号 |
H02K3/24 |
主分类号 |
H02K3/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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