SU1205226A1 - Frameless winding - Google Patents

Description

The invention relates to electrical engineering and can be used primarily in the manufacture of inductors of electrical machines.

The purpose of the invention is to expand the functionality, increase the use of materials and improve energy performance.

FIG. Figure 1 shows the flat conductor from which the winding is made; in fig. 2 - flat conductor with slots arranged parallel to the bending lines; in fig. 3 - flat conductor with internal sections bent in opposite directions, projecting beyond the outer contour of the winding; in fig. 4 - the same, with areas that do not protrude beyond the outer contour of the winding; in fig. 5 depicts a winding — the resultant folding of a flat conductor in FIG. 3; in fig. 6 - the same as in FIG. four; in fig. 7 - winding of FIG. 5, an end view; in fig. 8 - winding of FIG. 6, an end view.

From flat-conductor 1 (Fig. 1), for which a foil or strip of conductive metal of thickness 2 is prepared, is prepared 35

ca. 3. Between the 4 bend lines, frameless two axial slots 5 are made known. The 5 parts of the conductor 6 located between the slots are bent along 180 dotted lines alternately in opposite directions (Fig. 2-4).

FIG. 3 bent sections protrude beyond the contour of the workpiece, and in FIG. 4 they coincide with the contour of the workpiece, i.e., the areas are shortened by size.7. After the bending of the parts of the conductor 6, the accordion is folded along the bend lines 4 to form the winding turns. The bend divides the distance between the parts 6 in half, into sections 8 and 9. After the first turn is formed, its sections are joined, namely the sections 8 and 9, 6 and 10 are joined.

The connection is carried out, for example, by soldering, gluing or other known methods. As a result

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hank prototype. It can be used as an inductor with adjustable parameters due to the outputs from the layers, as well as in transformers, throttles and relays. In addition, the winding has good cooling due to the protrusions 12.

Compared to the prototype, the proposed winding has a better use of metal, by at least 25% O7, the presence of countercurrent currents at the corners increases the energy performance.

The proposed winding is made according to FIG. 6, 8, in contrast to the known, can be used in the manufacture of inductors of electrical machines, and the number of turns of the inductor can be adjustable. The thickness of the winding and its dimensions are significantly less than the prototype.

This operation produces a coil of double thickness, which is insulated. Therefore, in the manufacture of the winding billet must be selected with a thickness of two times less than

prototype that facilitates manufacture. A second winding is formed similarly. All operations are repeated until from the folded and connected sections

the flat conductor does not form the winding shown in fig. 5 or 6.

The winding has an inner window 11 in which a ferromagnetic core can be placed, as well as protrusions 12 formed by bent inner sections and protruding beyond the outer contour of the winding. These protrusions serve to improve cooling.

Fig. 6 shows a winding without protrusions, which can be used on DC machines, synchronous and others as the main and additional poles. Winding

may be square, rectangular or other shape with the required dimensions. Adjustment leads are made from the layers of the winding 13. The proposed winding works like this.

   known frameless about

hank prototype. It can be used as an inductance coil with adjustable parameters due to the outputs from the layers, as well as in transformers, throttles and relays. In addition, the winding has good cooling due to the protrusions 12.

Compared to the prototype, the proposed winding has a better use of the metal, by no less than 25%. O7 The absence of counter currents at the corners increases the energy indices.

The proposed winding is made according to FIG. 6, 8, in contrast to the known, can be used in the manufacture of inductors of electrical machines, and the number of turns of the inductor can be adjustable. The thickness of the winding and its dimensions are significantly less than the prototype.

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Compiled by F. Podolska Editor M.Dishsh Tehred Z.Kastelevich Proofreader S.Cherni

Order 8535/55 Circulation 645Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, Proektna St., 4

Claims (2)

1. Frameless WINDING made of accordion-folded insulated conductor, consisting of repeating identical bending + bent sections, folded transversely to form winding turns, characterized in that, in order to expand functionality, improve material use and increase energy performance, between the lines the bends are made in two transverse slots, and the parts of the conductor located between the slots are bent 180 ° alternately in opposite directions, forming a double loop th thickness. 2, Winding on π. 1, characterized in that the bent parts of the conductor protrude beyond the outer contour of the winding. No. About SL No. 1 1205226