JPS5863113A - Transformer interleaved winding - Google Patents

Abstract

PURPOSE:To provide a reliable transformer interleaved winding that eliminates scoring between conductive materials that occurs on crossing portions, by a method wherein a winding bundle with even number of windings and that with odd number of windings are alternately laminated, an insulating material is inserted in the oddly-wound winding for adjustment of its winding width and eliminate the positional deviation on crossings for each winding bundle. CONSTITUTION:The outer crossing position of a winding C1 is opened for the inner crossing position, and reversely the winding D1 is closed. Which is to say, the winding C1 is evenly wound, and the winding D1 is oddly wound. An insulating material 46 for adjustment of number of windings is inserted between the turns of D1. Thereby, the crossing 47 is always positioned outside of the winding, so the crossing portion for each winding is protected mutually from being deviated. The crossing 47 is inclined at an angle so that connection to the next winding is made without strain. As a result, unevenness and projections on the crossing 47 are eliminated, as well as scoring between windings that is caused by forcible moving of the crossing 47.

Description

[Detailed Description of the Invention] The present invention relates to interleaved windings, particularly for conductors (wires).
The present invention relates to a transformer interleaved winding suitable for increasing the number of windings.

A conventional interleaved winding has a structure as shown in FIGS. 1 and 2. The interleaved winding section■ is
Winding wire (winding bundle) AI on core 41 from outside to inside, winding A
2 is a winding that is continuously wound in a disc shape alternately from the inside to the outside, similarly, winding A is continuously wound in a disc shape from the outside to the inside, and winding A4 is continuously wound in a disc shape from the inside to the outside. It is connected to the windings B1 and B2 of the normal disk winding section (3).

The numbers 1 to 36 shown in FIGS. 1 and 2 indicate the order of the windings through which the current flows. That is, the first
In the figure, the beginning of the volume is 1.7 → 2.8 → 3.9 → 10.4
・・・・・・・・・The current flows as 1, 2.3,
Now across winding A2 4, 5.6, then from A2 to A1 7, 8.9, again across winding A2 10, 11.
It flows through 12 windings A3 at 13 degrees, 14 degrees, and so on. Therefore, a transition position 42 is required to move to the next winding. Note that the reference numeral 43 is a spacer that separates the windings.

FIG. 3 is a diagram showing details of the transition portion of the conventional interleaved winding. The upper winding in the diagram is AI (or As)
The lower winding indicates A2 (or A4). Therefore, the crossing section on the left front in the figure is numbered 7 in Figures 1 and 2.
This corresponds to the part numbered 6 from 1 to 6, and the crossover wire at the lower right side of the figure corresponds to the part numbered 12. This crossover wire 44 is located at the inner part between the turns of the winding A2, and is numbered 13 (not shown).
It must be brought out to connect to the outside.

Moreover, since this crossover wire 44 protrudes from the portion of the winding A2, a space 45 is created between the turns of the winding A2.

That is, since there is a misalignment between the crossover position of the crossover wire 44 and the crossover position of the winding A3, it is necessary to pull the crossover wire 44 outward, connect it to the winding A, and correct the shift before passing it. For this reason, an unreasonable force is applied to the crossover wire 44, causing unevenness or galling at both ends of the crossover wire 44. This galling causes friction between the windings,
This friction may cause damage to the insulation coating. Furthermore, if the difference in the unevenness of the transition m44 becomes large, there are disadvantages such as a dip in the equipotential and the electric field concentrating between the winding stages, causing corona discharge. Therefore, great care must be taken to prevent the ends of the crossover wires 44 from protruding when dealing with irregularities at the crossover locations of the interleaved windings. There are also problems such as the need to perform special electric field calculations for the protruding portions and to consider parts to prevent damage to the insulator. In particular, interleaved windings using a plurality of conductors (wires) have the disadvantage of being extremely complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a highly reliable transformer interleaved winding that eliminates the above-mentioned drawbacks and eliminates galling between conductors that occurs at the transition portion.

In the present invention, the interleaved winding is arranged by alternately arranging even-numbered winding bundles and odd-numbered winding bundles, and inserting one winding worth of adjustment insulator into the odd-numbered winding bundle. The transition portion is placed on the outside between the turns of the winding bundle to eliminate misalignment of the transition portion, and the unevenness and galling of the transition portion caused by this misalignment are eliminated.

An embodiment of the transformer interleaved winding of the present invention will be described below with reference to FIGS. 4 to 6, using the same reference numerals for the same parts as in the conventional example.

In FIGS. 4 and 5, an interleaved winding (2) and a disk winding (2) are wound around a transformer core 41. The windings C, C2 of the interleaved winding (3) are even-numbered 6-turn turns, and the windings D1 and D2 are odd-numbered 5-turn turns.

Between the turns of this odd number of windings, D2,
By inserting an insulator (described later) for adjusting the winding width equivalent to one turn, the positions of the transition portions of the windings C, D, C2, and D2 are adjusted. Note that the numbers assigned to the windings in FIGS. 4 and 5 indicate the order of the windings through which current flows, as in the conventional case.

Figure 6 shows the windings CI and DI shown in Figures 4 and 5.
(or C2 and D4) is a detailed view of the crossing 9 portion. As shown in the figure, the outer transition position of the winding C1 is open with respect to the inner transition position, and conversely, the winding D1 is closed. That is, the winding C1 is an even number of turns, the winding D□ is an odd number of turns,
By inserting an insulator 46 for adjusting the winding width between the turns of the winding, the connecting wire 47 of the winding is always placed on the outside of the winding, and the connecting portion of each winding is They are designed not to shift from each other. Furthermore, the slope of the crossover wire 47 is arranged so that it connects to the next winding without applying excessive force to the slope, as shown in FIG. The unevenness and protrusion of the wire 47 are eliminated, and the galling between the windings caused by forcing the crossover wire 47 around is eliminated. Moreover, since the crossover wire 47 is located outside the winding D1, no space is created between the turns of the winding D1.

According to this embodiment, the windings c, , and c2 are even-numbered 6-turn turns, the windings , and D2 are odd-numbered 5-turn turns, and the windings . Insulators 46 corresponding to the number of windings are inserted to adjust the position of the crossover wire between each winding to prevent misalignment, which has the effect of preventing irregularities and galling in the crossover wire 47. There is. Therefore, the reliability of the windings is improved by preventing damage to the insulation coating due to friction between the windings, eliminating dips in the equipotential of the crossover wire 47 and concentration of the electric field, and preventing the occurrence of corona discharge. There is.

As described above, according to the transformer interleaved winding of the present invention, it is possible to provide a highly reliable transformer interleaved winding that eliminates galling between conductors that occurs at the transition portion.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing the structure of an interpolated winding and a disc winding wound around a conventional transformer, Fig. 2 is a partially exploded view of the winding transition section in Fig. 1, 3 is an enlarged perspective view of the winding transition section shown in FIG. 2, FIG. 4 is a sectional view showing an embodiment of the transformer interleaved winding of the present invention, and FIG. 5 is the transition section of FIG. 4. FIG. 6 is an enlarged perspective view of the transition portion shown in FIG. 5. 41... Iron core, 4.4.47... Crossover wire, 46...
・Insulator, ■...Interleaved winding section, ■...Disc winding. Science 10 Horror 2 Figure 2 Figure 3

Claims (1)

[Claims] 1. In the interleaved winding of a transformer, in which multiple winding bundles are stacked on the transformer core via spacers and each winding bundle is connected with a connecting wire, an even-numbered winding bundle and an odd-numbered winding bundle are used. A transformer characterized in that the winding bundles are alternately stacked, and an insulator for adjusting the winding width is inserted into the odd-numbered winding bundles, thereby eliminating misalignment of the connecting wires of each winding bundle. interleaved winding.