| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary electric machine the efficiency of which can be increased furthermore by specifying the relation between permanent magnets and the air gap properly with a configuration as simple as possible, thereby reducing the motor loss furthermore.SOLUTION: In correspondence with each supporting member 20, an air gap 21 of predetermined length (l) is formed at a position between permanent magnets 17a, 17b and a stator 13, separated from the permanent magnets 17a and 17b by a predetermined distance (l) in the flow direction 27 of magnetic flux 23, so that magnetic saturation can take place when power is supplied to the stator coil 24 in low current state but cannot take place at the time of maximum torque when power is supplied in high current state. Consequently, reduction of torque is minimized in low torque state and a drop of the maximum torque is suppressed at maximum torque in high current state in spite of a simple configuration where the air gap 21 is formed in the supporting member 20, and operation efficiency of the rotary electric machine 10 can be enhanced. |
