The electric bicycle wheel hub motor also called electric bicycle wheel motor, electric bicycle wheel hub drive, electric bicycle hub motor or electric bicycle in-wheel motor, is an electric motor that is incorporated into the hub of a wheel and drives it directly.
An electric bicycle wheel hub motor comprises a horizontally arranged spindle, a hub shell that is rotatably mounted outside the spindle, a stator and a rotor that are arranged inside the hub shell, and a gear speed reduction mechanism. The stator secured on the spindle. The gear speed reduction mechanism comprises a rotor gear that is secured to the rotor and arranged coaxially outside the spindle, a planetary carrier that is secured on the spindle, a planetary shaft that goes rotatably through the planetary carrier. The left planetary gear and a right planetary gear that are secured on the planetary shaft, and a sun gear that is secured to the hub shell and arranged coaxially outside the spindle, wherein the left planetary gear engages with the rotor gear, and the right planetary gear engages with the sun gear. The E-bike hub motor means has a large output torque and internal transmission function.
Electric Bicycle Wheel Hub Motor Advantages
1. Electric bicycles that use hub motors have electromagnetic resistance when they are not riding. The clutch mechanism can be used to reduce the electromagnetic resistance. The clutch mechanism can also be used to adjust the gear speed ratio.
2. Omit a large number of transmission components to make the vehicle structure simpler
3. For conventional vehicles, clutches, transmissions, drive shafts, differentials and even transfer cases are essential, and these components are not only lightweight, but also make the structure of the vehicle more complex. Maintenance and failure rate issues. But the hub motor solves this problem very well. In addition to a simpler structure, a vehicle driven by a hub motor can achieve better space utilization and a higher transmission efficiency.
4. Because the hub motor has the characteristics of a single wheel independent drive, it can be easily implemented in either the front, rear or four-wheel drive form. The full-time four-wheel drive is very easy to implement on the wheel-motor-driven vehicle.