| 主权项 |
1. A rotor for a permanent magnet synchronous machine comprising:
a rotor core structure having a cylindrical body, the cylindrical body including an inner cylindrical wall and an outer cylindrical wall; a first layer of cavities formed circumferentially within the rotor core structure, pairs of the cavities in the first layer form V-shaped configurations and are spaced circumferentially about the rotor core structure in the first layer, each V-shaped configuration includes a first leg cavity and a second leg cavity, an apex of each V-shaped configuration formed by the first leg cavity and the second leg cavity extends toward the inner cylindrical wall, and an open end of each V-shape configuration extends toward the outer cylindrical wall; a second layer of cavities formed circumferentially within the rotor core structure, pairs of the cavities in the second layer form V-shaped configurations and are spaced circumferentially about the rotor core structure in the second layer, each V-shaped configuration of the second layer includes a first leg cavity and a second leg cavity, an apex of each V-shaped configuration in the second layer formed by the first leg cavity and the second leg cavity extends toward the inner cylindrical wall, an open end of each V-shape configuration in the second layer extends toward the outer cylindrical wall; a first set of permanent magnets inserted within each cavity in the first layer; and a second set of permanent magnets inserted within each cavity in the second layer, the magnetic field strength of the first set of permanent magnets is greater than the magnetic field strength of the second set of permanent magnets; wherein each respective V-shaped cavity and associated magnets of the first layer is paired with a respective V-shaped cavity and associated magnets of the second layer to form rotor poles, wherein each respective first leg in the second layer of each respective pole is outwardly offset and parallel to an associated first leg in the first layer of each respective pole, and wherein each respective second leg in the second layer of each respective pole is outwardly offset and parallel to an associated second leg in the first layer of each respective pole, and wherein each respective V-shaped configuration of the second layer having permanent magnets disposed therein extend greater than half a radial distance from the outer cylindrical wall to the inner cylindrical wall. |
