? ? ? ? The effect of large scale magnetic tile, and has many advantages, not only the magnetic tile single easy operation, and low consumption, mainly used in permanent magnet DC motor, and electromagnetic motor through the excitation coil magnetic potential source is not the same, permanent magnet motor is a permanent magnet material and stable magnetic potential source.
Influence of magnetic tile on motor
(1) the remaining magnetic induction intensity is Br. Due to the same pole surface area and the air gap, Br level occurred ferrite tile large output torque and large power. The motor will have higher power.
(2) high Hcb. Because of the high Hcb, it is necessary to ensure that the motor output required by the electrical fitness equipment, magnetic watt motive force, so that the motor operating point near the maximum magnetic energy product, and make full use of the magnet's ability.
(3) high Hcj. Hcj high to ensure that the motor has a strong anti overload, demagnetization and anti-aging, low temperature resistance.
(4) high (BH) max. (BH) the higher the max, the better the operating coefficient of the permanent ferrite in the motor.
(5) the greater the magnetic energy, the better the operation power of the motor.
(6) the better the squareness of the demagnetization curve, the smaller the dynamic loss of the motor.
(7) the higher the resistivity of the permanent ferrite, the smaller the eddy current loss.
(8) the temperature coefficient of the permanent ferrite is small, and it has excellent temperature stability at high temperature
(9) starting current is small and time constant is small. The impact on the power supply is small.
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