| 发明名称 |
INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR |
| 摘要 |
In the rotor core, three or more magnet housing holes for housing magnets are formed in the circumferential direction, and when it is assumed that a stack thickness of the rotor core is X, a stack thickness of the stator core is Y, a sectional area of a core portion surrounded by a line connecting midpoints of an inner diameter side surface of each of the magnet housing holes is S3, a sectional area of an outer-peripheral-side core portion provided between an outer diameter side surface of each of the magnet housing holes and an outer periphery of the rotor core is S2, a sectional area obtained by subtracting the sectional area S2 and the sectional area S3 from a sectional area of the rotor core is S1, the rotor stack thickness is formed so as to satisfy the relation of X>Y and X<Y(1+(S2/S1)×2). |
| 申请公布号 |
US2015200570(A1) |
申请公布日期 |
2015.07.16 |
| 申请号 |
US201314409787 |
申请日期 |
2013.07.18 |
| 申请人 |
Mitsubishi Electric Corporation |
发明人 |
Tsuchida Kazuchika;Oikawa Tomoaki |
| 分类号 |
H02K1/06 |
主分类号 |
H02K1/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An interior permanent magnet synchronous motor including a rotor core formed by stacking a plurality of electromagnetic steel plates, and a stator core arranged on an outer peripheral side of the rotor core formed by stacking a plurality of electromagnetic steel plates, wherein
three or more magnet housing holes for housing magnets, which are arranged in number corresponding to the number of poles in a circumferential direction of the rotor core and constitute a magnetic pole are formed in the rotor core in the circumferential direction, and when it is assumed that a stack thickness of the rotor core is X, a stack thickness of the stator core is Y, a sectional area of a core portion surrounded by a line connecting midpoints of an inner diameter side surface of each of the magnet housing holes is S3, a sectional area of an outer-peripheral-side core portion provided between an outer diameter side surface of each of the magnet housing holes and an outer periphery of the rotor core is S2, and a sectional area obtained by subtracting the sectional area S2 and the sectional area S3 from a sectional area of the rotor core is S1, the rotor stack thickness is formed so as to satisfy the relation of X>Y and X<Y(1+(S2/S1)×2). |
| 地址 |
Tokyo JP |
