At present, two substances inverter air conditioner compressor into ferrite magnets used in high-performance NdFeB permanent magnet materials. The lower magnetic ferrite permanent magnet materials, but the price is relatively low, the production of low-end inverter air conditioner, high-performance NdFeB permanent magnet materials is the highest, mainly for the production of high-end inverter air conditioner.

Since the magnetic ferrite permanent magnet material is low, a large amount of space occupied by a large compressor. With the inverter air conditioner compressor performance improvements, and its magnetic properties have become increasingly demanding, if ferrite permanent magnet material, the amount will increase exponentially ??, other electrical materials, such as copper consumption should be a corresponding significant increase , not only takes up space of the compressor, its low-cost advantage will gradually weaken. Therefore, the air conditioning in the miniaturization trend of the future, ferrite permanent magnet material in the inverter air conditioning system will gradually replace the high-performance NdFeB permanent magnet materials.

Magnetic materials and devices based on Chinese industry association forecast in the next few years, the use of high-performance NdFeB production of inverter air conditioner proportion will rise rapidly in 2008--2014 will reach 20%, 30%, 40 %, 50%, 60%, 70%, 80%.