Elevator motor Introduction

   Permanent magnet synchronous elevator motor is a permanent magnet material generates excitation magnetic field, instead of electrical excitation. It does not require excitation current, the rotor-circuit loss. Permanent magnet synchronous elevator motor excitation magnetic field generated by the permanent magnets and the stator winding of the current generated by the electromagnetic coupling of the elevator motor rotation. Permanent magnetic materials and physical properties of permanent magnet synchronous elevator motor performance are closely related. Permanent magnetic materials research and production has developed rapidly.
Permanent magnet synchronous elevator motor with inner rotor and outer rotor type two, contained within the rotor for major, high-speed applications; outer rotor type, small size, suitable for elevators without machine room.
   Permanent magnet synchronous gearless traction machine with the traditional worm gear, worm gear traction machine compared with the following advantages:
a) permanent magnet synchronous gearless traction machine is a direct drive, no worm, worm drive, permanent magnet synchronous elevator motor is not required for the induction elevator motor stator coil very occupy the place, and the production of permanent magnet synchronous elevator motor main material is high-energy The high remanent flux density and high coercivity NdFeB, its flux density generally reach 0.75T or more, so you can achieve small size and light weight.
b) high transmission efficiency. As a result of permanent magnet synchronous elevator motor direct drive (no worm gear deputy) the transmission efficiency can be increased by 20% to 30%.
c) permanent magnet synchronous gearless traction machine because there is an induction elevator motor running at high speed bearing noise and what happens there is no contact with the worm gear transmission that occurs when noise, so noise can be reduced whole 5 ~ 10db (A) .
d) low energy consumption. Works from the permanent magnet synchronous elevator motor shows its permanent magnet excitation is achieved, without the stator to provide an additional excitation current, and thus the power factor can reach very high (theoretically can reach 1). Permanent magnet synchronous elevator motor rotor while no current through the rotor depletion problem does not exist. Generally lower than asynchronous elevator motors consume 45% to 60%. Since there is no low efficiency, high energy consumption worm gear pair, power consumption is further reduced.
e) permanent magnet synchronous gearless traction machine because there is no tooth profile wear problems and does not require periodic replacement of oil, so its long life, and basically no maintenance.
Security is a new generation of energy-saving and permanent magnet synchronous traction elevator is a major feature, is unmatched by a traditional lift big technological progress. Permanent magnet materials synthesis and sintering of the world leading level, the level of production of permanent magnet elevator motor soon catch up with the world level, in order to lift production to provide favorable conditions.