SU773752A1 - Device for magnetizing multi-pole magnets of electric machines - Google Patents

Description

The invention relates to devices ’for magnetizing multipolar magnets of electrical machines.

A device is known for magnetizing multi-pole magnets of electric machines, comprising 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, composed of sectors with alternating polarity in the number of poles of a magnet to be magnetized, separate poles with reverse alternating polarity, located around central multipole with a gap to accommodate a magnetizable magnet and connected magnetically wires with sectors of the central multipole £ 1 ^

The known device does not allow to obtain sufficiently high properties of permanent magnets of electrical machines.

The purpose of the invention is the improvement of the magnetic properties of magnetizable magnets.

This goal is achieved by the fact that in the device for magnetizing multipolar magnets of electric machines, the central multipole is cylindrical, and the separate poles are made rectangular.

In FIG. 1 schematically shows a device, a general view in FIG. 2 - section AA in FIG. 1.

The device consists of separate rectangular poles 1, sectors 2 of the central cylindrical multipole, non-magnetic gaskets 3 between sectors, magnetizing coils 4, measuring coils 5 for determining the magnetic characteristics of magnetized magnets having poles with columnar directional crystallization 6 and inter. pole zones 7 with equiaxial structure, magnetic circuits 8 connecting the outer separate rectangular poles with the sectors of the central cylindrical multipole.

The device operates as follows.

To magnetize a multipolar stator magnet, it will be interfered with in the gap between the central cylindrical multipole and the outer rectangular poles so that the edges of the poles 6. of the magnet coincided with the rectangular poles 1. The magnetizing coils 4 for magnetizing the magnet are connected to a pulse or direct current source

The magnetic characteristics of multipurpose solid-cast stator magnets with directional crystallization along the poles, textured during isothermal processing to the entire height of the poles and magnetized using the proposed device, increase in specific magnetic energy from 5.8 to 12 million GSE.

Claims (1)

tori of a central cylindrical multipole. The device works as follows. To magnetize the multi-stator magnet, it will be placed into the gap between the central cylindrical multi-terminal and outer square poles so that the faces of the poles are located. the magnet coincided with the rectangular poles 1. The magnetizing coils 4 for magnetizing the magnet are connected to a source of pulsed or direct current Magnetic characteristics of a multipolar 15, with solid stator magnets with directional crystallization across the poles, textured by isothermal processing across the entire height of the poles and magnetized using the proposed device, increase in the specific magnetic energy from 5.8 to 12 million GE. Claims An apparatus for magnetizing multi-pole magnets of electrical machines. containing a multipolar source of a magnetic field in the form of an electromagnet, the magnetic core of which is made of a central multipole consisting of sectors separated by non-magnetic spacers, with alternating polarity according to the number of poles of the magnetized magnet, separate poles with reverse alternating polarity located around the central multipole, with a gap of a position on the position of the position, the position of the position of the magnetism and connected by magnetic circuits with the sectors of a central multipole, characterized by that. the chain of improvement of the magnetic properties of a magnetized magnet, the central multi-terminal is cylindrical, and the separate poles are rectangular. Sources of information taken into account in the examination 1. USSR inventor's certificate, tu 2672313/07. cl. H 01F13 / OO ,. GL TA / V V