SU1064325A1 - Device for magnetic multipole magnets of electric machines - Google Patents

Abstract

DEVICE FOR MAGNETIZING MULTIPOLUS MAGNETS OF ELECTRIC MACHINES, containing a multi-pole magnetic field in the form of an electromagnet, the magnetic circuit of which is made of a central multipolar network with alternating polarity, made up of sectors according to the number of poles of the magnetized magnet, and the total size of the circuit, and the size of the open-circuit non-volatile a gap for placing a magnetized magnet, and connecting magnetic cores between separate fields, and a central multipole, characterized in that, in order to increase the magnetic properties and quality of the magnetized magnet, it is provided with a clamp HEB / iH elements that are coupled with external, relative to the working gap, surfaces of the central multipole and separate poles, and the conjugate surfaces these elements are made conical. About 4: ib X ND SL

Description

The invention relates to the production of electric machines and can be used to create devices for magnetizing a multi-terminal magnet of electric machines.

A device is known for magnetizing permanent magnets of an annular shape, comprising a magnetic core pressed against the end surface of the magnet, with radial cores, with non-magnetically magnetized windings. On each core for magnetization of magnets of different diameters, two or more windings are placed, connected in groups located at different radial distances and switched by switch l.

The disadvantage of this device is incomplete magnetization of ring-shaped multipole magnets in the peripheral areas of the magnet due to the absence of a central multi-pole within the multi-pole magnet and the presence of an air gap between the poles of the device of the magnetizable magnet that reduces the conductivity of the magnetic flux.

The closest to the proposed technical entity is a device for magnetizing multi-pole magnets of electric machines. The device contains a multi-pole magnetic field in the vibrating electromagnet. alternating polarity arranged around a central multi-pole with a gap to accommodate a magnetisable magnet and connect ial magnetic circuits between the twin poles and the central multipole 2J.

A disadvantage of the known device is incomplete magnetization due to the low conductivity of the magnetic circuit of the magnetizing device together with the magnetized magnet due to the presence of a double air gap between the magnetizing magnet and the central multi-terminal between the outer separate poles and the magnetized magnet.

The purpose of the invention is to increase the magnetic properties and quality of a magnetized magnet.

The goal is achieved by the fact that a device for magnetizing multi-pole magnets of electric machines, contains 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 polarity located around a central multipole with a working gap to accommodate a magnetisable magnet, and connecting magneto water between the separate poles and the central multipole, equipped with clamping elements

5 which are coupled with external surfaces of the central multi-port and separate poles relative to the working gap, and the mating surfaces of these elements are made conical.

 FIG. 1 schematically shows the proposed device; in FIG. 2, section A-A in FIG. one.

The device contains separator poles 1, a central multi-terminal 2 with poles in the form of sectors, connecting magnetic cores 3 and magnetizing cables 4. Magnetizable ring-shaped Q magnet 5 has prismatic permanent magnets 6 with directional magnetic crystallization and pole teeth 7 of magnetically soft steel . "

5 On the conical surfaces of the separate magnets and the central multipole, a clamp- is installed; elements 8 and 9.

The device works as follows.

0 way.

To magnetize the multipolar ring magnet 5 is freely placed between the central multipolar 2 and separate fields 5 themselves 1 so that the pole teeth 7 of the magnetized magnet 5 are opposite the poles of the magnetizing device, and the prismatic magnets 6 adjoin their

Q connect to the poles of the device. The application of force on the clamping elements 8 and 9 exclude air gaps in the magnetic circuit.

 After that, a high-magnitude pulsed current is supplied to the magnetizing coils 4, which forms an electromagnetic field, the magnetizers are prismatic permanent magnets 6. 0 Then the force from the clamping elements 8 and 9 is removed, the poles of the device are opened and the magnetized magnet 5 is released, the air gaps return to the source magnitude, the magnetized magiite 5 is removed freely from the device. ,

When magnetizing the device on the device provides maximum magnetic conductivity.

systems over the entire surface of the poles, the magnetic properties of the magnetisable magnet increase by 10%, its anti-corrosion coatings and appearance are preserved, and its quality is improved.

Claims (1)

DEVICE FOR MAGNETIZATION OF MULTI-POLE MAGNETS OF ELECTRIC MACHINES, 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 multipole with alternating polarity, made up of sectors by the number of poles of a magnetized magnet, separated by a polar pole with an alternating pole placement of a magnetizable magnet, and connecting magnetic cores between separate fields, themselves and cent cial multipole, characterized in that, in order to improve magnetic properties and the quality of the magnetisable magnet device is provided with clamping elements, which are conjugate with respect to the external surfaces of the working gap and separate multipole central pole, wherein the mating surfaces of these elements are conical.