Electric automobile invisible magnetic pole and tile permanent magnet steel wheel hub driving motor

Abstract

The invention provides an electric automobile invisible magnetic pole and tile permanent magnet steel wheel hub driving motor, belonging to the automobile motor electric appliance technical field, and comprises a front end cover, a rear end cover, a wheel hub type casing, a rotor, a stator, a stator support and a shaft; a rectangular permanent magnet steel is embedded in a radial rectangular notch, and a tile permanent magnet steel is embedded in a circular arc notch; a wheel hub driving motor rotor magnetic field is provided by permanent magnet steels. The motor is a rotor magnetic bypass structure, and can effectively prevent permanent magnet steels from generating irreversible demagnetization under the surge current armature reaction effect, and avoid loss of excitation of the permanent magnet steels; in addition, the motor has no electro-magnetic coils, consumes less electric energy, has no carbon brushes and mechanical commutators, and possesses the characteristics of low failure rate, compact structure, and reliable operation.

Description

technical field [0001] The invention provides an electric vehicle invisible magnetic pole and tile permanent magnet steel wheel hub drive motor, which belongs to the technical field of electric vehicle motors and appliances. Background technique [0002] At present, most of the driving motors used with electric vehicles are DC motors with carbon brushes and mechanical commutators. Although DC motors have simple structure, high controllability, wide speed range, relatively simple control circuit, and low cost, but Since the magnetic field of the DC motor is generated by the electric excitation winding, the power consumption is large and the output power is small. In addition, due to the existence of carbon brushes and mechanical commutators, it not only limits the improvement of the overload capacity and speed of the DC motor, but also if it runs for a long time, it is bound to need Regular maintenance and replacement of carbon brushes and commutators lead to high energy cons...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the driving motors used with electric vehicles are DC motors with carbon brushes and mechanical commutators. Although DC motors have simple structure, high controllability, wide speed range, relatively simple control circuit, and low cost, but Since the magnetic field of the DC motor is generated by the electric excitation winding, the power consumption is large and the output power is small. In addition, due to the existence of carbon brushes and mechanical commutators, it not only limits the improvement of the overload capacity and speed of the DC motor, but also if it runs for a long time, it is bound to need Frequent maintenance and replacement of carbon brushes and commutators, so the DC motor consumes a lot of energy and has a high failure rate, and its performance needs to be further improved

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