Patent ID: 7642681

Claim:
A rotary electric machine comprising: a stator; a magnet rotor rotating about a rotation center line; one or more magnetic sensors for detecting leakage flux leaking out of the magnet rotor; and a casing receiving the magnet rotor and the stator, the one or more magnetic sensors being received in a sensor receiving portion that is formed in an outer wall portion of a side wall of the casing, the side wall being located in an extending direction of the rotation center line of the magnet rotor, the sensor receiving portion being formed by depressing the outer wall portion of the side wall to form a recess having a closed end, the sensor receiving portion being disposed in a position that allows the one or more sensors to detect leakage flux leaking out of the magnet rotor, the one or more magnetic sensors being mounted onto a circuit substrate in such a manner that the magnetic sensors may be received in the sensor receiving portion with the circuit substrate being attached to the outer wall portion.