Permanent magnet motor rotor for automobile

[0016] like figure 1 , 2 As shown, the present invention provides a double-layer V-shaped rotor topology, including rotor core 1, upper magnetic steel slot 2, upper magnetic steel 3, upper auxiliary magnetic bridge 4, lower magnetic steel slot 5, lower magnetic steel Steel 6, lower auxiliary magnetic bridge 7, auxiliary air slot 8; on the basis of the traditional V-shaped topological structure, a double-layer V-shaped topological structure is derived. At the same time, in order to ensure the structural strength of the rotor under high-speed conditions and reduce the risk of demagnetization, the scheme optimizes the single magnetic bridge structure in the V-shaped structure of the lower layer to a parallel parallel magnetic bridge structure, and optimizes the size of the auxiliary air slot between the double bridges. Excellent design. Compared with the traditional single-V topology, the weight of each magnetic pole of the double-V topology is larger, which puts forward higher...