Permanent magnet wheel hub motor of somatosensory vehicle

Abstract

The invention provides a permanent magnet wheel hub motor of a somatosensory vehicle, and belongs to the technical field of electric vehicles. The permanent magnet wheel hub motor comprises an outer rotor iron core, a stator iron core, a permanent magnet, an armature winding, pole shoes and a shaft, wherein 8X convex rotor poles are uniformly distributed at the inner side of the outer rotor iron core, and X is a natural number; the length of a pole arc of each rotor pole is equal to one half of the pole distance of the corresponding rotor pole; the stator iron core consists of 3X fan-shaped auxiliary iron cores, and each auxiliary iron core is provided with two armature stator poles and one permanent magnet stator pole; an armature permanent magnet is fixedly arranged on each permanent magnet stator pole, and each pole shoe is fixedly arranged at the outer side of the corresponding permanent magnet; the 3X permanent magnets are magnetized in the radial direction, and the magnetizing directions are the same. The permanent magnet wheel hub motor has the advantages that the auxiliary iron cores of the stator are mutually isolated, so that the stator-phase windings are mutually isolated in physical and electromagnetic modes, thereby greatly reducing the possibility of inter-phase faults; by utilizing the pole arc matching relationship of the stator and the rotor, the total magnetic chain change rate of the two windings with the same phase is not changed, and the characteristics of the two windings are mutually complemented.

Description

technical field [0001] The invention relates to a permanent magnet hub motor of a somatosensory vehicle, which belongs to the technical field of electric vehicles. Background technique [0002] The somatosensory car is an upright "electric car" that combines mechatronics engineering and new energy. The research on the electric vehicle has greatly promoted the development of robotics and related science and technology. And its own characteristics have greatly broadened its scope of use, such as its small size, convenience and flexibility. The scope is also constantly expanding to new fields. [0003] As a new type of "electric vehicle", the somatosensory vehicle is naturally inseparable from the drive motor for its power output. At present, most somatosensory vehicles use permanent magnet brushless motors as drive motors, and with the electronic control system, they can start, accelerate, decelerate, stop and other actions of the vehicle only by changing the center of grav...

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Problems solved by technology

[0007] At present, the applicant has searched at home and abroad, but has not found a motor with a new structure proposed by the present invention to meet the requirements of high fault tolerance and high efficiency of a permanent magnet hub motor for a somatosensory vehicle.

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