Rotor structure, permanent magnet auxiliary synchronous reluctance motor, and electric vehicle

A rotor structure, comprising:

• a rotor body provided with permanent magnet slots groups, the permanent magnet slots groups each comprising an outer layer permanent magnet slot, the rotor body being further provided with a third bent slot and a fourth bent slot;
• wherein the third bent slot is in communication with a first segment of the outer layer permanent magnet slot;
• the fourth bent slot is in communication with a second segment of the outer layer permanent magnet slot;
• a length directional geometric center line of the third bent slot and a length directional geometric center line of the first segment of the outer layer permanent magnet slot form a third angle;
• a length directional geometric center line of the fourth bent slot and a length directional geometric center line of the second segment of the outer layer permanent magnet slot form a fourth angle;
• an extension line of a side wall of the third bent slot proximate to a d-axis and an outer edge of the rotor body intersect at a first point;
• an extension line of a side wall of the fourth bent slot proximate to the d-axis and the outer edge of the rotor body intersect at a second point;
• A1 denotes a central angle corresponding to an arc of a connection line of the first point and the second point;
• and A1 >0.63×360°/p is satisfied, wherein p denotes a number of poles of the rotor structure;
• the permanent magnet slots groups each further comprise an inner layer permanent magnet slot, the rotor body is further provided with a first bent slot and a second bent slot, the first bent slot is in communication with a first segment of the inner layer permanent magnet slot;
• a length directional geometric center line of the first bent slot and a length directional geometric center line of the first segment of the inner layer permanent magnet slot form a first angle;
• the second bent slot is in communication with a second segment of the inner layer permanent magnet slot and a length directional geometric center line of the second bent slot and a length directional geometric center line of the second segment of the inner layer permanent magnet slot form a second angle,
• a first flux barrier is formed between a side wall of the first bent slot and the second bent slot proximate to the outer edge of the rotor body, and the outer edge of the rotor body;
• a second flux barrier is formed between the outer edge of the rotor body and a side wall of the third bent slot and the fourth bent slot proximate to the outer edge of the rotor body;
• and 0.18×360°/p>A2+A3 >0.13×360°/p is satisfied, A2 denotes a central angle corresponding to an arc of the first flux barrier, and A3 denotes a central angle corresponding to an arc of the second flux barrier.