Brushless DC hub motor and motorcycle, automobile, panzer thereof

Abstract

The invention discloses a wheel hub electric motor, and a motorcycle, an automobile and a tank using the wheel hub electric motor. The wheel hub electric motor comprises an outer rotor and an inner rotor; the outer rotor and a stator are a few-groove and few-pole structure. The wheel hub electric motor uses the permanent magnet brushless DC electromotor with the few-groove and few-pole structure as the source of power, therefore, the size of the electric motor is small, the structure and the production technology are simple; for the tank as special conveyance, the wheel hub electric motor can be installed in the power system of the tank; the low speed and big torque work can be achieved by the wheel hub electric motor, therefore, the gasoline consumption of the tank is reduced in the process of starting and running in low speed, so as to improve the capacity to continuous run.

Description

technical field [0001] The invention relates to a hub motor structure and its use, in particular to a brushless DC hub motor and pure electric or hybrid electric motorcycles, electric vehicles and tanks using the hub motor. Background technique [0002] The "hub motor" can be directly installed on the wheels of vehicles and vehicles, and it can provide instantaneous torque for vehicles while greatly improving power efficiency. [0003] However, the in-wheel motors currently used in various transportation and transportation vehicles generally have insufficient motor torque, short continuous mileage after one charge, and the motor is prone to heat during long-term load operation, and the magnetic properties of the permanent magnets are weakened. The disadvantages restrict the development of pure electric or hybrid transportation and transportation tools. [0004] Among them, motorcycles and motorcycles are still widely used in today's social development as a convenient means ...

AI Technical Summary

Problems solved by technology

It can be seen from the above that low-speed high-torque motors usually adopt a relatively complex multi-slot and multi-pole structure, while the relatively simple structure with few slots and few poles is generally only used on small and micro motors, while on low-speed high-torque motors and did not use and try

[0008] It can be seen from the above that due to the above-mentioned technical prejudice, until now, the structure of less slots and less poles has not appeared in the design and manufacture of low-speed and high-torque permanent magnet motors, let alone used in electric motorcycles. Therefore, the current Electric motorcycle technology needs to be improved

[0009] In addition, the above situation also exists in pure electric and hybrid electric vehicles, which restricts the further application of in-wheel motors in electric vehicles

[0010] In addition, for heavy-duty vehicles, such as tanks, due to their large weight, during the low-speed driving process at the initial stage, the drive mechanism needs a larger torque output than normal work at this time. The current existing fuel drive system is here It consumes a lot of fuel under working conditions, reduces the continuous mileage, and the scope of action of the tank is greatly limited, which is not ideal for use.

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