In-wheel motor ring type electromagnetic brake and separate shock absorption integrated device

Abstract

The invention discloses a ring electromagnetic braking and separated damping integrated device for a wheel hub motor. The ring electromagnetic braking and separated damping integrated device for the wheel hub motor is composed of a ring electromagnetic braking device and a separated damping device, and comprises an outer rotor, an inner rotor, a connecting ring, a ring braking disc, a friction plate, an electromagnet, a return spring, a support, a main damper, an auxiliary damper, a rubber washer, a main shaft and a suspension, wherein the ring braking disc is connected with the outer rotor through the connecting ring; the electromagnet is used as power for braking; the space layout is compact, and space of a wheel hub is utilized reasonably; a brake unit and the auxiliary damper are connected with the inner rotor through the support; the main shaft of the hub motor and the inner rotor are connected with a vehicle body through the main damper and the auxiliary damper, vibration transmitted to a hub from the ground can be directly transmitted to the vehicle body through the main shaft which is connected with the hub, impact to the hub motor is reduced, and meanwhile the dampers between the motor and the vehicle body play a role in buffering. The ring electromagnetic braking and separated damping integrated device for the wheel hub motor is suitable for a hub drive system of a battery electric vehicle and improves the braking and damping properties.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a hub motor ring-type electromagnetic brake and a separate shock-absorbing integrated device. Background technique [0002] The hub motor is a motor in the form of an inner stator and an outer rotor. Its power, transmission and braking devices are integrated in the hub, which greatly simplifies the mechanical components of electric vehicles. Compared with traditional vehicles, it has good mobility and high efficiency. Excellent transmission, high utilization of space inside the car body and good dynamic performance. [0003] The brake disc of the existing automobile disc brake device is mostly installed on the transmission shaft, the braking force is limited by the radius of the brake disc, the required layout space is relatively wide, and hydraulic braking is mostly used, which is not suitable for the hub motor of the electric vehicle. Chinese patent (CN10...

AI Technical Summary

Problems solved by technology

[0003] The brake disc of the existing automobile disc brake device is mostly installed on the transmission shaft, the braking force is limited by the radius of the brake disc, the required layout space is relatively wide, and hydraulic braking is mostly used, which is not suitable for the hub motor of electric vehicles

Chinese patent (CN102673380A) discloses a built-in suspension integrated in-wheel motor to drive electric wheels. Since the braking system inside the in-wheel motor generates more heat during operation, the permanent magnet inside the motor will be demagnetized for a long time. Affect the performance of the motor, and the instability of the braking performance is high, and the maintenance of the friction plate is more inconvenient after wear

The Chinese patent (CN102673380A) only considers reducing the vibration transmitted from the ground to the motor, but does not consider guiding and transferring the vibration energy received by the motor, and absorbing

Images