Neodymium Permanent Magnetic Assembly Halbach Array ODM Design

Halbach array neodymium magnet ODM design

Compared with traditional motors, Halbach motors have the following advantages.

1. Power density

Compared with traditional permanent magnet motor architecture, the superposition of parallel and radial magnetic fields after Halbach magnetic ring decomposition greatly increases the magnetic field intensity on the other side, effectively reducing the volume of the motor and improving the power density of the motor.

2 fixed rotor no longer need chute

Due to the inevitable harmonics in the air gap magnetic field in traditional permanent magnet motors, chute is usually used to reduce the influence in the fixed rotor architecture. In Halbach motor, due to the large sine distribution of air gap magnetic field and low harmonic content, there is no chute in the fixed rotor.

3. The rotor can be made of non-core materials;

Due to the self-shielding effect of Halbach magnets, the unilateral magnetic field distribution no longer requires the rotor to adopt magnetic material as its path, which not only provides more material for the rotor selection, but also enables the system to have lower moment of inertia and faster adhesion.

4. High utilization rate of magnet;

Due to the partition of Halbach magnet, its ** magnet working point is higher, generally more than 0.9, thus improving the utilization rate of ** magnet.

5. Centralized winding system can be used;

Distributed windings are commonly used in traditional permanent magnet motors to reduce harmonic magneto-motive force. In Halbach motor, due to its high sinusoidal magnetic field distribution and low harmonic magnetic field influence, centralized winding can be used.

6. The use of Halbach motor magnet arrangement can reduce the torque ripple of the motor, so the need for motor bearings is greatly reduced.

In practice, different types of Halbach magnets can be combined according to different magnetic field requirements.

All these arrangement can be customerized, meanwhile, we can also do ODM and design for you.

Chongqing great well magnet Co. ,ltd is a professional manufacturer and exporter of all kinds of high performance Magnet Assembly, Ferrite and NdFeB magnet and its correlative plastic injection, stainless shaft, ceramic shaft and magnetization machine. Now we own 402 employees, 36 of them are for technical and management. Our products are highly applied to magnetic driving pump, drainage pump of washing machine and dishwasher, aquatic sinking pumps, Start-motors,

electronic timer, controller, frequency conversion motor, brushless DC motor, electronic meter and so on. Our main export countries and regions are Spain, America, German, South Korea, and Taiwan.

Manage system:

We have introduced into the advanced foreign production technique and management experiences, and got the ISO9001：2015 for ferrite and NdFeB factory,

Production capability:

Now we have 7 main kinds. The annual production capability is over 10,000tons for ferrite magnet, 3,000 ton for NdFeB Magnet

We can do both OEM/ODM for magnet and magnet assembly.