JPS5818770B2 - 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 electric appliances, and in particular provides a novel large-capacity, high-series capacitance winding constructed by using both transposed wire and rectangular wire. be.

In large-capacity windings, since the cross-sectional area of the wire becomes large, it is desirable to use transposed wires for the purpose of reducing eddy current loss in the windings.

However, transposed wires are constructed by twisting together multiple insulated rectangular wires to form a single conductor, which is then coated with insulation, making them extremely flexible compared to rectangular wires. For winding work reasons, such as cutting, connecting, strand insulation, and overall insulation require a great deal of work, and the reliability of insulation strength and mechanical strength is extremely reduced, ordinary circular disks are used. Can only be wound around wire.

However, this ordinary disk winding wire has a small series capacitance between unit coils and a very poor potential distribution characteristic with respect to an impact voltage, so it cannot be used in high-voltage electrical appliances.

Therefore, it is desired to have a winding wire that is easy to wind the transposed wire, has a large series capacitance of the winding wire, and has a good potential distribution with respect to the shock voltage. , invented a winding wire as shown in FIG. 1 and filed an application earlier (Japanese Patent Application No. 1983-94324).

This winding is made by continuously winding a plurality of twin coils formed by winding the transposed electric wire A, and the number of turns is equal to approximately one twin coil of the transposed electric wire A so as to provide a predetermined potential difference between the turns. A winding section (2) in which windings of rectangular electric wire B with a different number of windings are sandwiched and wound to increase the series capacitance between unit coils of the winding to improve potential distribution, and the transposed electric wire. Winding classification in which A and rectangular wire B are overlapped and connected and wound to form a twin coil, making the winding work easier and reducing the winding man-hours■
are arranged alternately, and each transposed electric wire A and each rectangular electric wire B are connected in series.

In contrast, the specified invention further aims to improve the potential distribution in the winding section (■) of the prior invention winding.
A plurality of turns on the outer side of a unit coil in which transposed electric wire A and rectangular electric wire B are wound in an overlapping manner are connected to the same potential as the windings of rectangular electric wire B, which has a smaller number of turns, by the number of turns for approximately two unit coils. The shield conductor is wound around it.

FIG. 2 is a connection diagram of the windings of the embodiment of the specified invention, in which conductor A represents a transposed electric wire, conductor B represents a rectangular electric wire, and the Arabic numerals represent the number of turns of each turn.

This winding consists of two winding sections: winding section ■ and winding section ■.

First, the winding section (■) is a rectangular type in which the number of turns is shifted by the number of turns for approximately two unit coils to provide a predetermined potential difference between each turn of continuously wound transposed wire A, similar to the winding shown in Fig. 1. It is constructed by sandwiching and winding the winding of the electric wire B.

That is, the transposed electric wire A starts from the outermost turn A1 of the first unit coil a in the winding section ■, and is wound from the outside to the inside from the turn A1 to the second turn A8 from the inside, The innermost winding A9 of the second unit coil b is transferred from the winding A8 to the innermost winding A9 of the second unit coil b through the inner crossover wire portion 201, and the unit coil b
The winding is wound from the inside to the outside from the winding A9 to the second winding A16 from the outside, and from the winding A16 to the second winding A17 from the outside of the third unit coil C by the outer connecting wire portion 101. Shifting, winding A1 in unit coil C
It is wound from the outside to the inside to the innermost turn A24 of 7, and then moves from the turn A24 to the second turn A25 from the inside of the fourth unit coil d by the inner crossover wire portion 202, and the unit coil d, the wires are wound from the inside to the outside from the winding A25 to the outermost winding A32, while the rectangular wire B is wound around the outermost winding B of the third unit coil C.
Starting from 1, winding B1 to the second winding from the inside B8
From the outside to the inside, the transposed electric wire A is inserted between each turn and wound in turn, and from the turn B8 to the innermost turn B9 of the fourth unit coil d below by the inner crossover wire portion 203. Then, in the unit coil d, from the winding B9 to the second winding B16, the transposed electric wire A is inserted and wound in order from the inside to the outside between each winding, and from the winding B16 to the outer connecting wire portion 102, the unit coil d is wound. Moving to the second winding B17 from the outside of the first unit coil a separated by two coils, unit coil a
, the transposed wire A is inserted and wound in order from the outside to the inside from the winding B17 to the innermost winding B24, and from the winding B24 to the innermost winding B24, the inner crossover wire portion 204 connects the second wire below. Second winding B25 from the inside of unit coil b
In the unit coil b, from the winding B25 to the outermost winding B32, the transposed electric wire A is inserted and wound in order from the inside to the outside between each winding.

With this configuration, unit coils a and b and C and d do not have twin coils, and in unit coils a and b and C and d, the radial positions of transposed electric wire A and rectangular electric wire B are swapped, so that transposed electric wire A and The winding lengths of the rectangular electric wires B are approximately equal.

Next, in the winding section (■), the transposed wire A and the rectangular wire B are wound in an overlapping manner, and the rectangular wire B is wound with a smaller number of turns by approximately 2 unit coils between each of the multiple turns on the outer side. It is constructed by winding a shield conductor connected to the same potential as the coil.

That is, the transposed electric wire A and the rectangular electric wire B have the outermost turn A33j B of the first unit coil e of the winding section ■.
From the innermost winding A39FB39, the inner crossover wire portion 205°20
6 to each innermost turn A40.6 in the second unit coil f. Moving on to B40, the outermost turn A46. B
46, and in unit coils e and f, the radial positions of the transposed wire A and the rectangular wire B are swapped so that their winding lengths are approximately equal. ing.

Furthermore, winding A33° B33 to A in unit coil e
37. A shield conductor S is wound between each turn from the approximate center to the outer part of B11, and the shield conductor S1 is connected to connection 3.
01 from winding A33°B33 37. Flat wire B with a smaller number of turns by approximately 17 to 21 turns compared to 37.
It is connected to the crossover wire 102 of windings B16 and 17, and has an intermediate potential between windings B16 and B17.

Also, winding A43 in unit coil f. B43 to A4
6. A shield conductor S2 is wound between each turn from the approximate center to the outer part of the coil f and at the outermost side of the unit coil f.
It is connected to the connecting wire 104 of the windings B32 and B33 of the rectangular electric wire B, which has a smaller number of windings by about 11 to 14 windings than the windings B32 and B33, and has a potential intermediate between the windings B32 and B33.

The winding sections ■ and ■ are arranged alternately, and the final winding A32 of the transposed electric wire A in the first winding section ■ and the flat electric wire B
The final winding B32 is the outer connecting wire portion 103, 10, respectively.
4 to the first turn B33 of the transposed wire A in the second winding section ■ and the first turn B33 of the rectangular wire B, and the last turn A of the transposed wire A in the second winding section ■
46 and the final turn B46 of the rectangular electric wire B are connected to the first turn A4γ of the transposed electric wire A in the third winding section ■ and the first turn B47 of the rectangular electric wire B by outer crossover wire portions 105 and 106, respectively. , and thereafter are connected in the same way, so that the transposed electric wire A and the rectangular electric wire B of each winding section are respectively transposed electric wire A.
and each rectangular electric wire B are connected in series.

Next, in the winding according to the second invention of the present application, a portion of the winding near the line terminal is constituted by the winding according to the specified invention of the present application.

On the neutral point terminal side away from the contact terminal or the central part of the winding, a single transposed electric wire having a cross-sectional area equal to the total cross-sectional area of the cross-sectional area of the transposed electric wire and the cross-sectional area of the rectangular electric wire of the component part is continuously wound. It is constructed by connecting the winding sections in series.

What is shown in FIG. 3 is a connection diagram of windings according to an embodiment of the second invention of the present application.

In this embodiment, the portion of the winding close to the line terminal is composed of the winding of the embodiment of the specified invention shown in FIG. 2, and the neutral point terminal N
The part close to is made by continuously winding the winding section ■, which is constructed by continuously winding a single transposed wire C having a cross-sectional area equal to the total cross-sectional area of the transposed wire A and the cross-sectional area of the rectangular wire B. It is configured.

As described above, in the winding of the specified invention, the transposed electric wire A is wound continuously, and the number of turns is shifted by approximately two unit coil turns so as to provide a predetermined potential difference between each turn of the transposed electric wire A. Approximately 2 unit coils are formed between the winding section ■ formed by winding and sandwiching the rectangular electric wire B, and the outer part of the unit coil in which the transposed electric wire A and the rectangular electric wire B are wound in an overlapping manner. The winding section ■ formed by winding the flat wire B with a small number of windings and the shield conductor connected to the same potential is arranged alternately, and each transposed wire A and each flat wire B are connected in series. Because it is constructed by connecting, it can be wound with one transposed wire and one flat wire, compared to conventional large-capacity high-voltage windings that wind many flat wires in parallel. This makes winding work very easy.

Also, compared to the winding of the prior invention shown in FIG.
Since the series capacitance of the part can be significantly increased, the potential distribution characteristics of this part can be improved.
As a result, the potential distribution characteristics of the entire winding are further improved.

Further, in the second invention of the present application, a portion of the winding close to the line element is constituted by the winding of the specified invention of the present application, and a neutral point terminal or a central portion of the winding remote from the line terminal is constituted by the transposed electric wire A of the component portion. Since it is constructed by connecting in series the winding section (2) in which one single transposition electric wire C having a cross-sectional area equal to the total cross-sectional area of the cross-sectional area of and the cross-sectional area of the rectangular electric wire B is connected in series. It is possible to significantly reduce the number of man-hours required for winding the winding wire while minimizing the deterioration of the potential distribution characteristics of the winding wire of the invention.

[Brief explanation of the drawing]

ν Fig. 1 is a connection diagram of the windings of the prior invention, Fig. 2 is a connection diagram of the windings of one embodiment of the specified invention of the present application, and Fig. 3 is a connection diagram of the windings of one embodiment of the second invention of the present application. It is. A: Transposed wire, B: Flat wire, C
・・・・・・Transposed wire, L・・・Line terminal, N・
...Neutral point terminal.

Claims (1)

[Scope of Claims] 1 The transposed electric wire A is wound continuously, and the windings of the rectangular electric wire B are shifted by the number of turns for approximately two unit coils so as to provide a predetermined potential difference between each turn of the transposed electric wire A. Winding section ■ made by sandwiching and winding the wire, transposed wire A, and flat wire B
A shield conductor connected to the same potential as the windings of rectangular electric wire B having a smaller number of turns is wound between each of the plurality of turns on the outer circumferential side of the unit coil wound in layers, by approximately the number of turns for two unit coils. The transposed wire A and the rectangular wire B of each winding section are connected in series for each transposed wire A and each rectangular wire B, respectively, and the transposed wire A and rectangular wire B are connected in parallel. Disc winding for static induction electric appliances. 2. The part of the winding near the line terminal is a winding of rectangular electric wire B whose number of turns is shifted by the number of turns of approximately 2 unit coils so as to provide a predetermined potential difference between each turn of continuously wound transposed electric wire A. The winding section ■ made by sandwiching and winding the wire and the transposed wire A
and rectangular electric wire B are layered and wound, and a shield conductor connected to the same potential as the winding of rectangular electric wire B with a smaller number of turns is wound between each of the plurality of turns on the outer circumferential side by the number of turns for approximately 2 unit coils. Each transposed wire A and each rectangular wire B are connected in series. A stationary induction constructed by connecting in series winding sections (2) formed by continuously winding a single transposed electric wire C having a cross-sectional area equal to the total cross-sectional area of the cross-sectional area of A and the cross-sectional area of the rectangular electric wire B. Disc winding wire for electrical appliances.