High-stability electric wheel hub

Abstract

The invention discloses a high-stability electric wheel hub, which comprises a hanging system used for hanging a motor and a brake assembly on a wheel component, wherein the hanging system comprises a shock absorber which is arranged between the wheel component and the motor as well as the brake assembly and is used for absorbing shock in the vertical direction; and the degree of freedom of the up and down relative movement exists between a motor rotor and a wheel. The unsprung mass of a vehicle is reduced by the high-stability electric wheel hub, so that the harshness, the comfort and the safety of the vehicle are improved, the eccentric wear and the larger shock impact of the motor and the brake assembly are prevented, the abnormal operation of the motor caused by shock is avoided, and the service life of the motor of the vehicle is prolonged; and because the shock of the brake assembly is reduced, the wheel hub has obvious effects of balancing braking force and guaranteeing uniform friction in a braking process, the service life of a braking device is prolonged, and the braking safety is guaranteed. According to the high-stability electric wheel hub disclosed by the invention, space is fully used, the structure of the wheel hub is compact, and compared with those of the electric wheel hub of the prior art, the stability and the harshness index of the electric wheel hub disclosed by the invention are greatly improved.

Description

technical field [0001] The invention relates to a motor wheel hub, in particular to a high-stability electric wheel hub. Background technique [0002] As a motor vehicle powered by clean energy, electric vehicle has become more and more a project that enterprises and institutions pay attention to in research and development and people's daily life because of its obvious advantages in environmental protection and energy saving. Especially in the situation of environmental pollution and energy crisis, electric vehicles, as a means of transportation to reduce emissions, save energy and protect the environment, have become a key development target. The existing electric vehicle drive forms generally include centralized motor drive and hub motor drive (including deceleration drive type and direct drive type). Hub motor drive has become an electric vehicle due to its short transmission chain, simplified transmission system, high transmission efficiency and space saving. an import...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in-wheel motors are mounted in a rigid transmission connection between the motor and the wheel. Although the transmission efficiency between the motor and the wheel can be guaranteed to be high, the vibration of the wheel is directly transmitted to the motor during the running process, which is harmful to the motor. The use performance and service life of the wheel hub motor have obvious adverse effects. At the same time, the unsprung mass of the wheel increased by the wheel hub motor seriously affects the safety, stability and comfort of the vehicle; Low-torque occasions, such as low-speed and low-power vehicles such as tourist vehicles, ATVs, and stadium vehicles

[0004] In addition, if the electric hub is used in high-speed and high-power occasions, the torque characteristics and power requirements of the motor are relatively high. To obtain a large torque, the existing motor materials and manufacturing technology must be increased. The volume and mass will further increase the unsprung mass, which will further adversely affect the safety, stability and comfort of the car

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