JPS5826814B2 - Disc winding for stationary induction appliances - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disk winding for static induction appliances, and in particular provides a novel high series capacitance winding constructed by using both a transposed wire and a rectangular wire.

As disk windings for stationary induction appliances, particularly transformers, etc., ordinary disk windings are often used, as they have high mechanical strength and are easy to wind, such as the one shown in FIG.

That is, in FIG. 1, 101 is a terminal side leader line, and 10
2 is an inner crossover wire, 103 is an outer crossover wire, and coils a and b
Coils a and b are arranged alternately to form twin coils, and are successively connected in series by inner connecting wires 102 and outer connecting wires 103, and are connected to the outside by terminal side lead wires 101 at the upper and lower ends of the winding device. It has been derived.

In this case, there is an extremely advantageous feature that during the winding work, the process of cutting and re-splicing the strands of the inner connecting wire 102 and the outer connecting wire 103 is unnecessary, so that the number of man-hours required for the winding work is reduced.

However, this type of ordinary disk winding has drawbacks such as small series capacitance between unit coils and poor characteristics against shock voltage.

For this reason, in order to improve the potential distribution with respect to the impact voltage, there is a high series capacitance winding having a large series capacitance, for example, as shown in FIG.

In other words, two unit coils C and d adjacent to each other forming a twin coil are paired, and first, the same conductors 1-4, 5-8
The coils c and d are arranged in a twin coil shape,
Next, conductors 9 to 1 are inserted between each winding of these conductors 1 to 8.
This is an interleaved winding in which windings up to 6 are inserted and connected in series in order to increase the potential difference between adjacent conductors and provide a high series capacitance.

In this case, the conductor is turned inward (fixed direction) from the connected conductor 1 of the terminal side leader wire 101, and the conductor is
~4, and reaches the coil d via the inner crossover wire portion 104.

Then, this time, conductors 5 to 8 proceed outward, return to coil C via return crossover wire 105, proceed to conductors 9 to 12, sandwiched between conductors 1 to 4, pass through inner crossover wire 106, and then return to coil C. d, the conductors 13 to 16 are sandwiched between the conductors 5 to 8, and the conductors 13 to 16 are passed through the outer connecting wire portion 107 to the next twin coil.

The coils c s d are connected one after another to form a winding, and the lower end is led out to the outside by a terminal side lead wire 101 .

In addition, in actual winding work, the return crossover wire 105 is connected to the coil d.
It is necessary to cut the conductor 8 of the coil C once, and then connect it to the conductor 9 of the coil C by brazing or the like to insulate it.

By the way, in a large capacity winding, the cross-sectional area of the wire becomes large, so it is necessary to use a transposed wire for the purpose of reducing eddy current loss in the winding.

Transposed wires are made by twisting multiple insulated rectangular wires together to form a single conductor, and then insulating the entire wire at once, making it less flexible than conventional rectangular wires. be.

Therefore, when manufacturing a high series capacitance winding using interleaved windings as shown in Fig. 2 using transposed wires,
As mentioned above, there is work to cut and connect the return crossover wire 105 shown in Fig. 2, but since the transposed wire is made up of multiple insulated rectangular wires twisted together, a great deal of work is required for cutting, connecting, strand insulation, and overall insulation. There is a problem in that it requires a lot of time, and there is also a problem in that the reliability of insulation strength and mechanical strength becomes extremely low.

Moreover, since the transposed conductor has poor flexibility and has a small dimension in the thickness direction, there is a problem that the bending work of the connecting wires is complicated due to internal and external dislocations in the inner connecting wires 104 and 105. Therefore, the transposed conductor is used. It is almost impossible to manufacture high series capacitance windings using interleaved windings, and for this reason, transposed wires have a small series capacitance between unit coils and poor shock voltage characteristics, as shown in Figure 1. It was applied only to plate windings and low voltage windings.

The present invention solves the above-mentioned conventional drawbacks, and aims to reduce eddy current loss in the winding by using a transposed wire, have good potential distribution characteristics, and reduce the number of man-hours required for winding. be.

For this purpose, the present invention comprises winding a transposed electric wire and a rectangular electric wire in parallel, and sandwiching and winding a rectangular electric wire shifted by a predetermined number of turns between the continuous windings of the transposed electric wire. As a result, the winding part increases the series capacitance between the unit coils of the winding and improves the potential distribution, and the transposed wire and the rectangular wire are overlapped and continuously wound to make the winding work easy and quick. The winding is constructed by combining the winding part with a winding part that can reduce the number of winding man-hours.

In addition, winding sections with large series capacitance and good potential distribution are arranged on the line terminal connection side where the maximum potential gradient of the shock voltage is large when the shock voltage enters, and on the neutral point connection terminal side away from the line terminal. The structure is constructed by arranging winding sections that can reduce the number of winding man-hours rather than improving the potential distribution.

Next, the present invention will be explained with reference to an embodiment shown in FIG.

FIG. 3 is a winding connection diagram showing the first embodiment of the present invention. In the figure, the Arabic numerals shown in the conductor represent the number of turns of the transposed wire, and the numbers with dashes represent the number of turns of the rectangular wire. There is.

The line end side of the winding consists of a combination of winding section I and winding section ■. First, winding section I will be explained.

This winding section I consists of a first twin coil consisting of unit coil e(!:f) and a second twin coil consisting of unit coils g and h, and the transposed wire is 1st
from the twin coil side to the second twin coil side (unit coil e
-+f-+g-+h), and the rectangular wire is wound back around the second twin coil g→h→e-+f).

That is, the transposed wire is sequentially wound from the conductor 1 of the unit coil e, transferred from the conductor 4 to the conductor 5 of the unit coil f via the inner crossover wire 108, and is sequentially wound around the unit coil f to form the conductor 8.
It is further wound to the conductor 9 of the unit coil g via the outer connecting wire 109, and the unit coil g is sequentially wound to form the conductor
The conductor 13 of the unit coil h is further wound through the inner crossover wire 110, and the unit coil h is wound in sequence until the conductor 16 is wound.

Further, the rectangular electric wires sandwiched and wound between each turn of the transposed electric wire start from the conductor 1' which is sandwiched and wound between the turns of conductors 9 and 10 of the transposed electric wire of the unit coil g, and are successively wound. It is sandwiched and wound between the turns of the transposed electric wire of unit coil g, transferred from conductor 4' to conductor 5' of unit coil h via inner crossover wire 111, and sandwiched between the turns of the transposed electric wire of unit coil h. It is wound and transferred from the conductor 8' to the conductor 9' of the unit coil e via the outer connecting wire 112, and then the unit coil e
The conductor 12' is inserted between the turns of the transposed electric wire, and then transferred to the conductor 13' of the unit coil f via the inner crossover wire 113. The conductor 16' is reached.

and unit coils e and fl forming the first twin coil.
and inner crossover wires 108 and 113 and 110 and 111 connecting unit coils g and h forming the second twin coil.
In this case, the inner and outer diameter positions of the conductors are exchanged with each other so that there is no difference in the winding length of the transposed wire and the rectangular wire.

In the winding section I consisting of the first and second twin coils as described above, the rectangular electric wire is wound from the unit coil h of the second twin coil back to the unit coil e of the first twin coil. Because of this, there is a potential difference between the turns of the transposed wire and the rectangular wire, which is equal to the difference in the number of turns of about 2 coils (7 to 9 turns in the case of the figure), which increases the series capacitance. It is increasing.

Next, the winding section H will be explained.

Winding section (2) consists of a third twin coil consisting of unit coils i and j formed by overlapping a transposed electric wire and a rectangular electric wire and winding them into a disk shape.

That is, the conductor 16 of the transposed electric wire in the unit coil h of the second twin coil of the winding section (2) and the conductor 16' of the rectangular electric wire in the unit coil f of the first twin coil,
The conductor 17 of the transposed electric wire and the conductor 171 of the rectangular electric wire of the unit coil i are passed through the outer connecting wires 114 and 115, respectively.

Then, after forming a unit coil i by continuously winding the transposed wire 17 and the rectangular wire 17' side by side, the conductor in the unit coil i is exchanged with the inner and outer diameter positions using the inner connecting wires 116 and 117. 21 and 21') to conductors 24 and 24' to form a third twin coil,
In other words, it forms winding section (2).

The winding sections I and (2) constructed as described above are made into a set, and the winding sections I and the winding sections are arranged alternately to form a winding.

In addition, the conductor 1 of the transposed electric wire of the unit coil e in the winding section I and the conductor 1' of the rectangular electric wire of the unit coil g are connected to the line end via each terminal lead wire 101. .

In addition, the connection between the winding section ■ and the other winding section I located below this winding section ■ is such that the conductor 24 of the transposed electric wire in the unit coil of the winding section 118 and also by a connecting wire 119 outside the conductor 24' of the rectangular electric wire.

Next, FIG. 4 shows a second embodiment of the present invention,
4 differs from FIG. 3 in that the winding section H is replaced with a winding section ■ consisting of a unit coil k formed by overlapping and winding a transposed electric wire and a rectangular electric wire.

Incidentally, since the winding section I has the same structure as in the case of FIG. 3 described above, the same reference numerals are given and the explanation thereof will be omitted.

In FIG. 4, the winding section (2) consists of a unit coil k formed by overlapping a transposed electric wire and a rectangular electric wire and winding them into a disk shape.

and transposed conductor 16 in unit coil h of winding section I
The conductor 16 of the rectangular electric wire in the unit coil f is connected to the conductor 17 of the transposed electric wire and the conductor 1771 of the rectangular electric wire to the unit coil via crossover wires 120 and 121.

The above-mentioned winding sections I and 2 are arranged as a set, and the winding sections I and 2 are arranged alternately to form a winding.

Note that the connection between the winding section ■ and the other winding section 1 located below this winding section ■ is such that the conductor 20 of the transposed wire in the unit coil k of the winding section ■ is connected to the crossover wire 122 In addition, the conductor 20' of the rectangular electric wire or the crossover wire 123 is used.

The first and second embodiments described above have a winding section I which uses a high series capacitance method, a transposed wire and a rectangular wire that are stacked together to form a continuous winding, and a winding section I or a winding section which requires less winding man-hours. The winding is constructed by alternately arranging the wire sections (■), and by twisting multiple insulated rectangular wires with low eddy current loss in the winding, and further insulating the entire wire, it is coupled. This enables high-series capacitance winding using transposed wires in large-capacity windings.

Moreover, the part of the winding near the line end is constructed with an alternating combination of winding sections (■) and winding sections (■) or (■), which improves the potential distribution of the shock voltage and reduces the number of man-hours required for winding work. In the part far from the line end, it can be composed of only the winding sections ■ or ■, or it can be constructed by winding a single transposed wire with the combined cross-sectional area of the transposed wire and the rectangular wire. .

Next, an embodiment in this case will be described based on FIGS. 5 and 6.

First of all, what is shown in FIG. 5 is a third embodiment of the present invention, in which the portion of the winding near the line end is constructed by alternately arranging winding section I and winding section ■ (or ■). The part far from the winding is composed of only the winding section (■).

Note that 126 is an outer connecting wire portion within the winding section H.

In addition, in the fourth embodiment shown in FIG. 6, the portion of the winding near the line end is constructed by alternately arranging winding section I and winding section ■ (or ■), and the portion far from the line end is configured with It is composed of winding section ■ (unit coil 11.m), which is a normal continuous winding made by winding one transposed wire with a cross-sectional area that is the sum of the cross-sectional area of the transposed wire of winding section I and the rectangular wire. be.

And winding section H located at the end of the alternating arrangement of windings (
The unit coil j of (or ■) and the unit coil l of the winding section ■ are connected together with the outer connecting wires 127 and 128 in parallel.

Further, each unit coil 1 and the coil 1 forming the winding section (2) are connected to each other by an inner connecting wire 129 and an outer connecting wire 130 so as to form a continuous winding.

The winding according to the present invention configured as described above can achieve various effects as described below.

■ A rectangular wire shifted by a predetermined number of times is sandwiched between successive turns of transposed wire and wound to form first and second twin coils, thereby increasing the series capacitance of the windings. Winding section I, which has extremely excellent potential distribution characteristics against shock voltage, is provided on the line end side, and furthermore, the winding section I is equipped with winding section I on the opposite line end side, which is slightly inferior to winding section I in terms of potential distribution characteristics, but has winding workability. Since it is equipped with a winding section (or ■) formed by overlapping a transposed wire and a rectangular wire, the series capacitance is generally large and the potential distribution characteristics with respect to shock voltage are affected. An excellent large capacity winding can be obtained with good workability.

■ Winding section I consists of a first twin coil and a second twin coil, and the transposed wire is wound sequentially from the first twin coil side to the second twin coil side. On the other hand, the rectangular electric wire is wound from the second twin coil side back to the first twin coil once.

Therefore, since a transposed electric wire consisting of multiple electric wires can be wound continuously and sequentially into a disk shape, there is no need to cut and cross-connect (braze or weld), and the winding work can be done easily. This is extremely easy to do.

On the other hand, since a flat wire is made of a single wire,
The cutting and connecting work is simple, and the connection is changed from the second twin coil back to the first twin coil side so that a potential difference is given between the windings using a rectangular wire that is easy to connect. Since the rectangular electric wire gives a potential difference between the windings, it is possible to obtain the winding section (2) with good potential distribution with good workability.

In the winding section ■ (and Because it is short, at most several tens of meters, it cannot withstand normal shock voltage.
Although the voltage shared between the coils in this part is not so large, it is advantageous in terms of winding work, and it is possible to wind it in a disc shape one after another. Therefore, in combination with the winding section I, the potential distribution The characteristics have improved, and in terms of workability,
Winding classification ■ is even better than winding classification ■.

(2) Furthermore, since it is a combination of a transposed electric wire and a rectangular electric wire, the thickness of the rectangular electric wire can be reduced, and as a result, combined with the effect of the transposed electric wire, eddy current loss can be further reduced.

■ In winding classifications I and H, the positions of the inner and outer diameters of both the inner and outer connecting wires are swapped between transposed electric wires and rectangular electric wires, and also in winding classification ■, transposed electric wires and rectangular electric wires are exchanged. Since the internal and external positions of the transposed wire and the rectangular wire are swapped, the impedance of the transposed wire and the rectangular wire are almost the same, and almost no circulating current flows between them, thereby reducing copper loss.

■ The combination of winding sections I and H of the present invention and the combination of winding sections I and Therefore, when viewed as a whole of the winding, the potential distribution characteristics are good and the number of man-hours for winding work can be reduced.

As described above, according to the present invention, since the winding is constructed by combining a transposed conductor with a small eddy current product and a rectangular wire that is easy to work with, the eddy current loss is small and the potential with respect to the shock voltage is low. As a high voltage, large capacity stationary induction electric appliance winding with good distribution, it has become possible to create a high series capacity winding using transposed wires that requires less winding work.

[Brief explanation of the drawing]

Fig. 1 is a connection diagram showing a conventional ordinary disk winding, Fig. 2 is a connection diagram showing a conventional high series capacity disk winding, and Fig. 3 is a connection diagram showing a disk winding according to the first embodiment of the present invention. 4 is a connection diagram showing the disc winding according to the second embodiment of the present invention. FIG. 5 is a connection diagram showing the disc winding according to the third embodiment of the present invention. The figure is a connection diagram showing a disk winding according to a fourth embodiment of the present invention. a-m is a unit coil, Ll'-24, 24' is an electric wire, 1
01 is the terminal side lead wire, 102 to 130 are the crossover wires, I, n
, m, rv are winding sections.

Claims (1)

[Claims] 1. A transposed electric wire and a rectangular electric wire are wound in a disc shape to form a first
and forming a second twin coil, the transposed electric wire is wound sequentially from the first twin coil side to the second twin coil side, and the rectangular electric wire is wound from the second twin coil side to the second twin coil side. 1
The transposed electric wire at the end of the winding of the second twin coil and the rectangular electric wire at the end of the winding of the first twin coil are connected to a disk. The winding section (1) is made of a third twin coil formed by overlapping and winding in a shape, and the winding section (I) and the winding section (2) form one set, and at least one of this set is provided, and A disk winding for a stationary induction electric appliance, characterized in that the wire section I is located on the line end side. 2 The transposed electric wire and the rectangular electric wire are overlapped and wound in a disk shape, and the first
and forming a second twin coil, the transposed electric wire is wound sequentially from the first twin coil side to the second twin coil side, and the rectangular electric wire is wound from the second twin coil side to the first twin coil side. A winding section I is formed by returning to the twin coil side of the second twin coil and forming the transposed wire at the end of the winding of the second twin coil, and the first twin coil.
The winding section (1) is formed by overlapping and winding the flat wire at the end of the twin coil in a disk shape, and the winding section (I) and the winding section (2) constitute one set, and at least one set of this set is provided. Individually prepared,
A disk winding for a stationary induction electric appliance, characterized in that the winding section (1) is located on the line end side.