发明名称 |
Permanent magnet type electric rotary machine and compressor using the same |
摘要 |
A permanent magnet type electric rotary machine includes a stator including a stator core having teeth and slots, and a rotor provided with permanent magnets as magnet poles in a rotor core. A pole core portion which between each of the permanent magnets and an outer surface of the rotor core is provided with a plurality of pole slits. A region of the pole core portion is defined by concave portions provided on q-axes to be interpolars on both sides of the pole core portion, and thereby configured that a gap between the outer surface on the q-axis of the rotor core and an inner surface of the stator core is larger than a gap between the outer surface on the d-axis of the pole core portion and the inner surface of the stator, so that magnetic fluxes from the permanent magnet pass through the pole core portion concentrately.
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申请公布号 |
US7915776(B2) |
申请公布日期 |
2011.03.29 |
申请号 |
US20100816123 |
申请日期 |
2010.06.15 |
申请人 |
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. |
发明人 |
TAKAHATA RYOICHI;KIKUCHI SATOSHI;WAKUI SHINICHI;NOMA KEIJI;SENOO MASAHARU |
分类号 |
H02K21/12 |
主分类号 |
H02K21/12 |
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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