A Arrangement of Permanent Magnets – 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. We can capture more magnetic field in using less magnets.

Features

A. Magnetic field on sinusoidal distribution, the more magnets in one pole, the more perfect sinusoidal distribution.

Advantage:
1. Reduce the harmonic of motor
2. Enlarge air gap of motor
3. Increased utilization of magnetic field

A Arrangement of Permanent Magnets - HALBACH ARRAY

A Arrangement of Permanent Magnets – HALBACH ARRAY

B. Enhance magnetic field

  Advantages Function
Enhance magnetic field One side of assembly is the strong magnetic surface and the other is week magnetic surface. It can use non-ferromagnetic materials as shafts in motor application.

Acting on magnetic shielding

On the strong magnetic surface, the permeability of magnetic lines will be strengthened. More farther adsorption distance

More adsorbed abject

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

Accurate adsorbed position

Application

Aluminum motor shell and axis (reducing motor weight)
Permanent magnet magnetic concentrator
Merchandise anti-theft buckle un-locker
External keyboard magnetic bar
Making uniform magnetic field with high magnetic field ( above 1.5T )
High-strength magnetic sucker
Magnetic positioning device
New permanent magnet motor

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