Multipolar Isotropic Ferrite Ring Permanent Magnet, Ceramic Multi-pole Magnets, motor rotor permanent ring magnets, Radially Orientation Multi-polar Magnetic Ring, Anisotropic hard ferrite magnetic rings for electronic motors Multipolar Isotropic Ferrite Ring Permanent Magnet Features: Specification size: custom design drawing Magnetizing mode: Radial 6 poles Type: Permanent Magnet Tolerance: +0.1mm Composition: Sintered Ferrite Magnet (hard ceramic) […]
N45UH Block Shape Neodymium Laminated Magnets, Black Epoxy or Ni-Cu-Ni Plated Laminated NdFeB Block Magnet, Reduction Eddy Current Losses Neodymium Magnet for Permanent Magnet Motor, Magnet Segmentation Technique
N45UH Block Shape Neodymium Laminated Magnets Part No. HSLAMIM-01
Laminated magnets can reduce eddy current Loss in high efficiency motors.
High efficiency demands the best materials, and the laminated rare earth magnets are proven to reduce eddy current losses in high efficiency motors. Fewer eddy current losses means lower heat and greater efficiency.
1. The thinnest available insulating layers, <20 um;
2. Performance at temperatures up to 200˚C;
3. Magnet layers from .5 mm and up custom shapes and sizes in neodymium magnets.
Now aerospace, automotive, motorsport, and industrial markets are turning to laminated rare earth magnets, and are working to balance the tradeoff between power and heat.
Permanent Magnet Motors Power High-End Applications
Saving energy is a common goal shared by industries across the world. Take the transportation sector, for instance. Just last year, China introduced a new high-speed subway system that offers significant energy savings. Meanwhile, the oldest operating ferry in Finland traded in its diesel fuel engines for an electric design. And on the streets of London, a well-known luxury brand debuted its first all-electric vehicle.
These examples showcase the evolution of transportation toward a greener future. But what they also highlight is the use of a particular device to achieve this: permanent magnet (PM) motors. These types of motors, which use magnets instead of winding in the rotor, help power a range of high-end applications. The most notable of these uses is in electric and hybrid vehicles. Stamping Motor Core Stator Rotor Lamination Sheets
The eddy current loss of rare earth magnet can be reduced by many ways, among them, the material science researchers have proposed to prepare the high-resistivity magnet, such as:
a. Bonded magnet.
b. High-resistivity sintered magnet.
Due to the existence of binder, the electrical resistance of the bonded magnet would be 102 to 104 times more than simple sintered magnet, but the motor power and maximum operating temperate will be limited. For sintered magnet, submicron fluoride will be served as additive to enhance the grain boundary electrical resistance. Fluoride will help magnet to form a high resistivity layer on its grain boundary, thus improve the electrical resistivity of the whole material.