SU819828A1 - Electric machine multi-pole magnet magnetizing device - Google Patents

Description

(54) DEVICE FOR MAGNETIZING MULTIPOLUS MAGNETS OF ELECTRIC MACHINES

one

The invention relates to the production of annular multipolar permanent magnets and electrical machines based on these magnets.

A device for magnetizing multipolar magnets of electric machines is known, comprising a multi-pole magnetic field source in the form of an electromagnet, the magnetic circuit of which is made of a central multi-terminal with alternating polarity composed of sectors according to the number of poles of a magnetized magnet with non-magnetic spacers between sectors, and separate poles with reverse alternating polarity and separate poles with reverse alternating magnetisable magnet between the sectors and separate poles with reverse alternating polarity located around a central multipole with a gap to accommodate a magnetized magnet, and connected x magnetic cores with sectors of a central multipole 1.

When using this device to magnetize multipolar ring permanent magnets with radial directional crystallization across the poles, the directions of the magnetic fields do not completely coincide with the directions of the columnar crystals throughout.

poles and magnetic properties of the magnet alloy are realized only at the level of 6 million GeE.

The aim of the invention is to increase the magnetic properties of a magnetisable magnet.

This goal is achieved by the fact that in the device for magnetizing multipole magnets the central multi-port is cylindrical, and the separating poles are made with a cylindrical outer surface so that the radii drawn through the edges of the separate poles to the center of the magnetisable magnet pass through the edges of the central multi-pole.

FIG. 1 shows the proposed device; in fig. 2 - section A-A of FIG. 1. The device contains separate poles 1 with a cylindrical outer surface, a central cylindrical multi-terminal 2 with non-magnetic spacers 3, connecting magnetic cores 4 between separate poles and sectors of the central multi-terminal, magnetizing coils 5, measuring coils 6. The magnetized magnet has poles 7 with radially directed crystallization and interpolar zones 8 with equiaxial structure. To magnetize a multipolar ring permanent magnet with radially directed crystallization along the poles, it is placed between the central cylindrical multi-pole and separate poles so that the zones with radial directional crystallization along the outer and inner surfaces of the magnet coincide with separate poles and the poles of the central cylindrical multi-pole I and I, in turn, I have already created an Id. switch on the source of pulsed or direct current. With such an arrangement of the magnet in the device, the directions of the magnetic fields coincide with the direction of the crystals along the entire height of the poles, which makes it possible to increase the magnetic properties of the magnetized magnet. The Invention Form A device for magnetizing multipolar magnets of electric machines, comprising a multi-pole magnetic field source in the form of an electromagnet, the magnetic circuit of which is made of a central multi-terminal with alternating polarity composed of sectors according to the number of poles of the magnetized magnet with non-magnetic spacers between the intersectors, and separate pole sections of the hops. rnness located around a central multipole with a gap to accommodate a magnetized magnet, and connected with magnetic cores with sectors of a central multipole, characterized in that, in order to increase the magnetic properties of the magnetized magnet, the central multipole is cylindrical, and the separate poles are made with a cylindrical outer surface so that the radii drawn through the edge of the separate poles to the center of the magnetized magnet pass t through the edges of the poles of the central multipole. Sources of information taken into account in the examination 1. Copyright certificate of the USSR for application No. 2672313/07, cl. H 01 F 13/00

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Claims (1)

containing a multi-pole source of a magnetic field in the form of an electromagnet, the magnetic circuit of which is made of a central multi-terminal with alternating polarity, composed of sectors by the number of poles of a magnetizable magnet with non-magnetic spacers between sectors, and separate poles with an alternating opposite polarity, located around a central multi-terminal with a gap for magnetizing th magnet, and connected by magnetic circuits to sectors of the central multipole, characterized in that, with spruce improve the magnetic properties of the magnetisable magnet central multipole is cylindrical, and the isolated field ca ¹⁵ formed with a cylindrical outer surface so that the radii drawn through edge spaced magnetisable poles to the center of the magnet passes through poles of the multipole central region. 20 Sources of information taken into account during the examination 1. Copyright certificate of the USSR by application No. 2672313/07, class H 01 D 13/00, 1978. '’ FIG. / 819828 FIG. 2