Motor and vehicle

Abstract

The embodiment of the invention provides a motor and a vehicle, the motor comprises a stator core and flat wire winding structures, the flat wire winding structures are wound on the stator core through stator slots, each stator slot is internally provided with n layers of flat wire winding structures, each phase of the flat wire winding structures comprises a first part and a second part, the number of the layers of the first part in the stator slot is a, and the number of the layers of the second part in the stator slot is a. The number of the layers of the first part in the stator groove is a, the number of the layers of the second part in the stator groove is b, a is not equal to b, and each phase of flat wire winding structure is in each pole, the stator groove wound with the first part and the stator groove wound with the second part are staggered by y1 grooves, namely, the first part and the second part of each phase of the flat wire winding structure are relatively staggered by y1 grooves, and the equivalent pitch y between the phase bands of the same-phase winding located under the two adjacent poles is equal to y0-y1, and the pitch y is smaller than the pole distance y0, so that the flat wire winding structure is a short-distance winding, a good torque ripple suppression effect is achieved when the motor runs, the back electromotive force harmonic wave of the motor is reduced, and the performance of the motor is improved.

Description

technical field [0001] The present application relates to the technical field of motors, in particular to a motor and a vehicle. Background technique [0002] In recent years, flat wire motors have been increasingly used in the field of new energy vehicles. The flat wire motor has the advantages of high copper full rate, good heat dissipation of the motor winding, can improve the withstand voltage capacity of the winding, and reduce the length of the end of the winding, etc., which can improve the torque density and power density of the motor. Therefore, flat wire motors have good application prospects in new energy electric vehicles. [0003] At present, the winding method of the stator winding of the existing flat wire motor is mostly full-pitch winding. Specifically, if the motor includes a stator core, the stator core is provided with stator slots in the circumferential direction, and the winding is wound on the stator iron through the stator slot. on the core. Among ...

AI Technical Summary

Problems solved by technology

[0005] The application provides a motor and a vehicle, which solves the problem that the existing motor windings are full-pitch windings, which cause large torque fluctuations of the motor and high harmonics of the back electromotive force, resulting in a decrease in the performance of the motor

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