SU482851A1 - A method of manufacturing bobbins of electric machines - Google Patents

Description

one

The invention relates to the technology of manufacturing electric machines of constant and alternating current, having a baseless active layer structure, any number of poles and an arbitrary shape of the stator bore, and can be used in electrical engineering.

There is a known method of fabricating coil groups of electric machines, by which a series of insulated conductors are mounted onto a template, then they are glued with prewarpto insulated ferromagnetic elements to a pair of conductors from two opposite sides of the template, after which they follow the next one of them. The operations are repeated to form 1 and a predetermined width of the side of the coil group with ferromagpite elements.

The purpose of the pasta invention is to simplify the technological process of manufacturing the coil groups of the distributed active layer of the electric machine.

The goal is achieved by winding the wire onto the template with sections, with the width of each smaller than the total height of the distributed active layer of the electric machine, then ferro-mapple eleiteites are attached directly to the sections, symmetrically and along the template axis.

after which the sections are removed from the template and at the same time lay ferromagnetic elements between them, folding them into an accordion.

Ferromagnetic elements are pre-fixed on an insulating substrate made in the form of a tape.

When this method of the proposed method, the main technological operations are largely iodized and, in addition, the possibility of damage to the winding wire is eliminated and the labor-intensive manufacturing is reduced.

fpg 1-5 shows technological

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prnemy nzgotovlen coil group; on phpg. 6-10 - succession of operations for the preparation of a coil group for face and cone electric machines; in fig. 11-28 - variants of technological schemes of formov1P1Y in a harmonica of the coil group.

The method of manufacturing the coil groups is carried out as follows.

For pattern 1, for example, an elliptical shape in cross section, wire 2 is routed across the width of the sections (Fig. 1), and the width of each of the sections is less than the height of the distributed active layer by the amount needed for subsequent processing of the coil group, then to the sides 3, 4 the template is glued directly to the conductor layer of pre-insulated ferromagnetic layers 5 in the form of tapes of a width greater than the height of the active layer by the amount of the processing allowance, while the distances between the edges of these tapes along the contour of the coil are equal to It has an equal length and head-wire electric machine. After that, the template is pulled out of the winding or the winding is removed from the template and at the same time the coil group is formed in the form of an accordion, as shown in FIG. 2-4. By bending the sides of the coil soils in one direction, the frontal conductors 6 are transposed, forming a " twist. After the formation of the coil group is completed, its sides with the ferromagnetic material are compacted, unrolled 90 ° and machined in planes 7, 8 (Fig. 5), then the coil group is placed in an electric machine and fixed, for example, compounded. Ferromagnetic elements can be made in the form of strips and attached to an insulating base, which is a yush, with itself a tape.

The process of forming coil soils for face and tapered electric machines is shown in FIG. 6-10. In this case, the ferromagnetic layers 5 in the form of ribbons are attached to the conductor layer on the template so that the distance between their edges along the contour of the coil is equal on one side to the length of the outer front conductors, and on the other to the length of the inner side conductors of the electric machine. In accordance with this, choose the form of the template. When forming the coil group, its sides with ferromagnetic layers are bent, mainly in opposite directions, as shown in FIG. 7, 8.

The formation of a coil group for cylindrical and linear electric machines is mainly carried out according to the flow diagrams in FIG. And -19, which differ from each other in the distance between the sections and the shape of the ferromagnetic layer. Due to this, the fill factor of the distributed active layer is changed.

The formation of a coil group for face and conical electric machines is preferably produced according to the flow diagrams shown in FIG. 20-28.

Subject invention

Claims (2)

1. Method of making coil soils electrical machines by winding conductor layers with a strip of ferromagnetic elements between them are also distinguished by the fact that, in order to simplify the technological process of manufacturing the coil groups, the wire is wound onto the pattern in sections, with the width of each section being less than the total height of the distributed active the electric machine layer, then ferromagnetic elements are fastened directly to the sections, they are installed symmetrically along the template axis, after which the sections are removed from the template and simultaneously laid between have them ferromagnetic elements, putting them in an accordion. 2. A method according to claim 2, characterized in that the ferromagnetic elements are fixedly supported on an insulating substrate made in the form of a tape. Fi2.1U