Air conditioner and synchronous machine and rotor structure thereof

The utility model discloses a synchronous machine's rotor structure, it includes the rotor and sets up at ascending aluminum strip of rotor week to the outer lane of rotor has the recess, and the recess setting is between two adjacent aluminum strips. Set up the recess through the outer lane at the rotor, can make the outer lane of rotor and the air gap between the stator become inhomogeneous air gap to reach the air -gap flux density wave form that improves the motor, weakened harmonic magnetic field, reduced the supplementary load loss of motor, increased the excitation current of motor, strengthened the start -up ability of motor, in addition, still can reduce the noise of motor. The utility model also provides a synchronous machine who has above -mentioned rotor structure. Furthermore, the utility model also provides an air conditioner that has above -mentioned synchronous machine.