无机房电梯广泛使用的是永磁同步电机技术,该技术应用高磁通密度的永磁材料,无需励磁电流,而且采用无齿轮传动的方式,效率远远高于以往的有齿轮曳引机。无减速齿轮的啮合,完全消除了传统有齿轮曳引机齿轮啮合所产生的噪音和振动,同时避免了大量使用齿轮油,从能源和环境两个角度都具有有齿轮传动曳引机无可比拟的优越性。针对电梯这个特殊的机电一体化的产品,其运 Machine roomless elevator is widely used is the permanent magnet synchronous motor technology, the technology uses high flux density permanent magnet material, without excitation current, and the use of gearless way, the efficiency is much higher than the previous gear traction machine. No meshing of reduction gears completely eliminates the noise and vibrations generated by the meshing of gears with conventional gear tractors and avoids the heavy use of gear oils and has a geared traction machine from an energy and environmental point of view The superiority. For the elevator this special mechatronics products, its transport