RU1791859C - Device for magnetizing inductor of electric engine with magnetically hard bars - Google Patents

Abstract

The invention relates to the field of electrical engineering, more specifically to devices for magnetization. SUMMARY OF THE INVENTION; in the device, the core magnetic cores are combined into separate symmetrically located groups, while in each group they are parallel to each other, while their ends, the most distant from the center, are connected in each group by separate arc frames. 1 ill.

Description

The invention relates to the field of electrical engineering, in particular to devices for magnetizing magnetic systems.

The purpose of the invention is to increase the productivity of the device and reduce power consumption.

The drawing shows the device in a plane perpendicular to the axis of rotation of the magnetized article.

The device comprises a horizontally mounted non-magnetic casing, in the center of which there is an annular sleeve 2. On the casing 1, magnetizing coils 4 are symmetrically arranged around the inner cylindrical working volume 3, the axes of which face the outer surface of the volume 3. Coil 4 is wound on rigid frames 5 and fixed. In the internal cavities of the frames 5, rod magnetic cores 6 are installed, which can be massive or burnt. The dimensions of the inner cavity of the frames 5 are slightly larger than the sizes of the magnetic cores 6, so they can freely move along the inner planes of the frames 5,

serving guides and supporting planes during such movement. For the convenience of moving the magnetic cores 6 manually, handles 7 can be made. The ends of the core magnetic cores 6 are connected, in particular, in pairs, by a closing magnetic core 8. Three magnetic cores can also be closed with this magnetic core. In order to reduce scattering outflows, the magnetic cores 6 and 8 can be manufactured as a unit.

Coils 4 are connected electrically to a direct current source 10 through a switch 9. An ammeter 11 is used to control the current in the electric circuit. The connection of the ends and ends of the coils 5 is selected so that when a direct current flows in the electric circuit of the coils in the magnetic circuits, a symmetrical multipolar a magnetic field with alternating poles of different polarity closing through an internal working volume 3.

The device operates as follows.

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Magnetic cores 8 are drawn by handles 7 from the working volume 3, in which the magnetic system is placed, in particular, a multi-pole inductor of an electric machine with bars of magnetically hard material installed in its magnetic conductor. Magnetic cores 6 are brought closer together with the magnetic system, the circuit breaker 9 is turned on and across the satuke, m 4 pass the magnetizing current for 20-30 s. The start-up operation is repeated two to three times. When current flows through the coils 4, the cores b are magnetically attracted to the poles of the inductor by magnetic forces. The presence of guides in the form of internal planes of the coils 5 of the coils makes it easy to move the cores 6 in directions that ensure their good fit.

Claims (1)

SUMMARY OF THE INVENTION A device for magnetizing an inductor of an electric machine with magnetically solid bars containing magnetic a system of rod magnetic circuits and associated tangential belts, fixedly mounted electric coils covering the rod magnetic circuits made with the possibility of radial movement, characterized in that, in order to increase the productivity of the device, reduce energy consumption, the rod magnetic circuits are combined into separate symmetrically located groups , each of which includes at least two rod magnetic conductors, rod magnetic circuits are located in each Rupp parallel to each other, with their ends farthest from the center of each group are connected in separate arc yokes, a coil electrically connected to a source direct current so that adjacent core magnetic circuits of adjacent groups have the same polarity.