Spoke motor 260

Specifications Model: 20-27 (stacked high)
Voltage: 48V-80V
Speed: 400R-500R
Wheel type: spoke wheel
Assembly size: 160 / 200mm
Color: Black / Champagne / Milky White / Gold

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Spoke motor 260 Details

Rear wheel for the spoke wheel is the spoke motor
Detection and Elimination of Common Faults in Motor.
1, the motor no-load current
When the motor no-load current is greater than the limit data, indicating that the motor has failed. The reason why the motor no-load current is big is that the mechanical friction inside the motor is large, the coil is short-circuited and the magnet is demagnetized. We continue to do the relevant test and inspection items, you can further determine the cause of failure or fault location.
Motor no-load / load speed ratio is greater than 1.5, turn on the power, turn the handle, the motor high-speed no-load rotation more than 10s. After the motor speed is stable, measure the maximum speed N1 of the motor at this time. Under the standard test conditions, travel more than 200m distance, began to measure the motor maximum load speed N2. No load / load ratio = N2 ÷ N1.
When the motor no-load / load speed ratio is greater than 1.5, indicating that the motor magnet demagnetization has been quite powerful, and should replace the motor inside the entire magnet, the actual maintenance of electric vehicles in the process is generally the replacement of the motor.
2, the motor fever
The direct cause of the motor is due to the large current caused by the motor current I, the motor input electromotive force E1, the motor rotation of the induced electromotive force (also known as back EMF) E2, and the relationship between the motor coil resistance R is: I = E1-E2) ÷ R, I increases, indicating that R becomes smaller or E2 is reduced. R is small is generally short-circuit or open circuit caused by, E2 reduction is generally caused by magnetic demagnetization or coil short circuit, open circuit caused. In the electric vehicle maintenance practice, the method of handling the motor heat barrier, usually replace the motor.
3, the motor in the run-time mechanical collision or mechanical noise
Whether high-speed motors or low-speed motors, mechanical shocks or discontinuous irregular mechanical noise should not occur during load operation. Different types of motors can be repaired using different methods.
4, the vehicle mileage shortened, the motor fatigue
The cause of the car is short and the motor is weak (commonly known as the motor boring) the reason is more complex. But when we ruled out the above four kinds of motor failure, in general, the vehicle continued to run a short fault is not caused by the motor, and the battery capacity of the attenuation, the charger is not full, the controller parameters drift (PWM Signal does not reach 100%) and so on.
5, brushless motor missing phase
The absence of a brushless motor is generally caused by damage to the brushless motor's Hall element. We can use the comparison method to determine which Hall element is faulty by measuring the resistance of the Hall element output lead relative to the lead wire and the lead of the Hall power supply.
In order to ensure the accuracy of the motor commutation position, it is generally recommended to replace all three Hall elements at the same time. Before changing the Hall element, it must be made clear whether the phase angle of the motor is 120 ° or 60 °. Generally, the three Hall elements of the 120 ° phase angle motor are placed parallel. While the 60 ° phase angle motor, three Hall element in the middle of a Hall element is turned 180 ° position placed.


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