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Halbach magnet

2021-7-30

Halbach Array

 

A Halbach array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side. It can be achieved much stronger magnetic field with fewer magnets.

 

Features:

1 Magnetic field is on sinusoidal distribution, the more magnets in one pole, and the more perfect sinusoidal distribution.

 

Reduce the harmonic of motor. Enlarge air gap of motor. Increase utilization of magnetic field

 

2 Enhance magnetic field

One side is the strong magnetic surface and the other is weak magnetic surface. It can use Non-ferromagnetic materials as shafts in motor applications. Acting on magnetic shielding.

 

On the strong magnetic surface, the permeability of magnetic lines will be strengthened. Farther absorption distance. More absorbed objects.

 

Enhance the magnetic force on the strong magnetic surface, and with better positioning effect. Accurate absorbed position.

 

Application:

Aluminum motor shell and axia (reducing motor weight)

Permanent magnet magnetic concentrator

Merchandise anti-theft buckle unlocker

External keyboard magnetic bar

Making uniform magnetic field with high magnetic field intensity (up to 1.5T)

High strength magnetic sucker

Magnetic positionning device

New permanent magnet motor