At the same time, because there is no AC field in the motor, there is no noise caused by AC. There is no need to wind and slot silicon steel sheets, eliminating the eddy current and hysteresis loss they generate; the eddy current loss in the copper coil mode is very small and easy to control, which improves the efficiency of the motor and ensures higher output torque and power. All steel components either rotate together (such as a brush motor) or are stationary (such as a brushless motor). Reducing the axial force will improve the reliability of the motor rotor. Good heat dissipation effect The inner and outer surface of the copper coin solenoid often has gas fluidity, which is better than the heat pipe of the slotted motor rotor solenoid. So what are the advantages of coreless motors compared to ordinary DC motors?
Compared with the traditional coil, the induction coil of the copper plate coil mode is lighter. The traditional silk-covered wire is embedded in the groove of the ferrite core, there are very few cyclones on the surface of the electromagnetic coil, the heat pipe has poor heat dissipation and the temperature is very high. Copper plate coil mode slotless silicon steel sheet, no hysteresis loss, no cogging effect to reduce speed and torque fluctuations. In addition, the resistance is small, reducing copper loss. Smooth speed curve and low noise There is no ferrite core with slots, which reduces the torque and harmonics of the working voltage.
High power density Power density is the ratio of output power to weight or volume. The coil is a structure without an iron core. No slot effect The copper plate coil China Air Purifier Motors is made of slotless silicon steel sheet, which eliminates the slot effect caused by the interaction between the slot and the magnet. There is no radial force between the rotor and the stator Because there is no stationary ferrite core, there is no axial magnetic field between the motor rotor and the motor stator.
The efficiency of the motor is that the copper plate coil method does not have the eddy current and hysteresis loss caused by the winding and slotting of the silicon steel sheet. The trough effect and torque hysteresis are obviously absent. This is especially critical in important applications. For the same power, the motor temperature of the copper coin solenoid method is lower. Only noise caused by rolling bearings and cyclones and vibration caused by non-sinusoidal waveforms.
The structure of the coreless motor breaks through the rotor structure of the traditional motor and adopts a coreless rotor, also known as a coreless rotor. The copper plate coil motor is small in size and has good performance. This new rotor structure completely eliminates the power loss caused by the eddy current formed by the iron core. The axial force between the motor rotor and the motor stator will cause the motor rotor to be unstable
ghsh