JP6791696B2 - Rest guidance device - Google Patents

Description

Examples relate to stationary induction devices.

Some static induction devices are equipped with high-pressure conductors and low-pressure conductors. In these high-voltage conductors and low-voltage conductors, currents flow in opposite directions to each other, and they are alternately arranged along the legs on the outer periphery of the legs of the iron core body.

JP-A-2007-294536

In the case of the above-mentioned conventional static induction device, the magnetic field generated by the current flowing through the high-voltage conductor affects the current distribution of the low-voltage conductor, and the magnetic field generated by the current flowing through the low-voltage conductor affects the current distribution of the high-voltage conductor. Therefore, the current is concentrated on the low-voltage conductor side of the high-voltage conductor, and the current is concentrated on the high-voltage conductor side of the low-voltage conductor. Therefore, since the effective cross-sectional areas of the high-voltage conductor and the low-voltage conductor are small, each of the high-voltage conductor and the low-voltage conductor may have a locally high temperature rise.

The stationary induction device of the embodiment is a high-pressure conductor in which an iron core body having legs and an outer peripheral portion of the legs of the iron core body are alternately arranged along the legs and currents flow in opposite directions. The high-pressure conductor and the low-pressure conductor are each composed of a plurality of divided conductors arranged in an intersecting direction intersecting the arrangement direction between the high-pressure conductor and the low-pressure conductor, and the high-pressure conductor is provided. The plurality of divided conductors of the conductor and the plurality of divided conductors of the low pressure conductor face each other in the arrangement direction. Then, the divided conductors are joined so that the direction of the current flowing through the plurality of divided conductors of the high-voltage conductor and the direction of the current flowing through the plurality of divided conductors of the low-voltage conductor are the same. There is.

The figure which shows Example 1 (the figure which shows the appearance of the high frequency transformer) Sectional view showing high pressure conductor and low pressure conductor Sectional view for explaining the current distribution of high-voltage conductors and low-voltage conductors The figure which shows Example 2 (the figure corresponding to FIG. 2)

(Example 1)
The iron core body 1 of FIG. 1 is used as an iron core of a high-frequency transformer. The iron core body 1 is made of a square wound iron core, and has two leg portions 2 and two joint iron portions 3. Each of the both leg portions 2 is longer than the joint iron portion 3, and has a straight shape facing each other. Each of the two joint iron portions 3 is shorter than the leg portion 2 and connects the two leg portions 2.

As shown in FIG. 1, a high-pressure winding 4 is mounted on the iron core body 1. The high-voltage winding 4 has two high-voltage conductor units 5, and the two high-voltage conductor units 5 are electrically connected to each other via a joint 6. Each of these two high-voltage conductor units 5 has a plurality of high-voltage conductors 7. The plurality of high-pressure conductors 7 of one high-pressure conductor unit 5 are arranged along the longitudinal direction of one leg portion 2 with a gap between them, and are electrically connected to each other via a joint 8. The plurality of high-pressure conductors 7 of the other high-pressure conductor unit 5 are arranged along the longitudinal direction of the other leg portion 2 with a gap between them, and are electrically connected to each other via a joint 8. Hereinafter, the high-voltage conductor 7 will be described.

As shown in FIG. 2, the high-voltage conductor 7 is divided into an inner peripheral side conductor 9 and an outer peripheral side conductor 10. The inner peripheral side conductor 9 forms a square ring surrounding the leg portion 2 of the iron core body 1, and the outer peripheral side conductor 10 forms a square ring shape surrounding the inner peripheral side conductor 9. The outer peripheral side conductor 10 is joined to the outer peripheral surface of the inner peripheral side conductor 9, and the inner peripheral side conductor 9 and the outer peripheral side conductor 10 are arranged in an orthogonal direction orthogonal to the longitudinal direction of the leg portion 2. ing. This orthogonal direction corresponds to the crossing direction, and the longitudinal direction corresponds to the arrangement direction.

As shown in FIG. 2, each of the inner peripheral side conductor 9 and the outer peripheral side conductor 10 is made of a hollow metal pipe having a circular cross section, and each of the inner peripheral side conductor 9 and the outer peripheral side conductor 10 is formed. Cooling water is flushed. Each of the inner peripheral side conductor 9 and the outer peripheral side conductor 10 corresponds to a divided conductor, and the cooling water corresponds to a cooling liquid.

As shown in FIG. 1, a low-pressure winding 11 is mounted on the iron core body 1. The low-voltage winding 11 has two low-voltage conductor units 12, and the two low-voltage conductor units 12 are electrically connected to each other via a joint 13. Each of these low-voltage conductor units 12 has a plurality of low-voltage conductors 14. The plurality of low-voltage conductors 14 of one low-voltage conductor unit 12 are electrically connected to each other via a joint 15, and the plurality of low-voltage conductors 14 of the other low-voltage conductor unit 12 are also connected to each other via a joint 15. It is electrically connected. Hereinafter, the low voltage conductor 14 will be described.

As shown in FIG. 1, the low-voltage conductor 14 is interposed between adjacent high-voltage conductors 7 along the longitudinal direction of the leg portion 2, and the high-voltage conductor 7 and the low-voltage conductor 14 are interposed in each of both leg portions 2. They are arranged alternately along the longitudinal direction. As shown in FIG. 2, the low-voltage conductor 14 is divided into an inner peripheral side conductor 16 and an outer peripheral side conductor 17. The inner peripheral side conductor 16 forms a square ring shape surrounding the leg portion 2, and the outer peripheral side conductor 17 forms a square ring shape surrounding the inner peripheral side conductor 16. The outer peripheral side conductor 17 is joined to the outer peripheral surface of the inner peripheral side conductor 16, and the inner peripheral side conductor 16 and the outer peripheral side conductor 17 are arranged in the orthogonal direction of the leg portion 2.

As shown in FIG. 2, each of the inner peripheral side conductor 16 and the outer peripheral side conductor 17 is made of a hollow metal pipe having a circular cross section, and each of the inner peripheral side conductor 16 and the outer peripheral side conductor 17 is formed. Cooling water is flushed. Each of the inner peripheral side conductor 16 and the outer peripheral side conductor 17 corresponds to a divided conductor.

The high-voltage conductor 7 and the low-voltage conductor 14 are such that currents flow in opposite directions to each other, and are arranged alternately along the longitudinal direction of the legs 2 of the iron core body 1. The magnetic field generated by the current flowing through the high-voltage conductor 7 affects the current distribution of the low-voltage conductor 14, and the magnetic field generated by the current flowing through the low-voltage conductor 14 affects the current distribution of the high-voltage conductor 7.

FIG. 3 shows the current distributions of the high-voltage conductor 7 and the low-voltage conductor 14, respectively. Here, a current is concentrated on a part of the low pressure conductor 14 side of each of the inner peripheral side conductor 9 and the outer peripheral side conductor 10 of the high pressure conductor 7, and the inner peripheral side conductor 16 and the outer peripheral side conductor 17 of the low pressure conductor 14 are respectively. The current is concentrated on a part of the high-pressure conductor 7 side.

According to the first embodiment, the following effects are obtained.
The high-voltage conductor 7 was divided into an inner peripheral side conductor 9 and an outer peripheral side conductor 10, and the low-voltage conductor 14 was divided into an inner peripheral side conductor 16 and an outer peripheral side conductor 17. Therefore, the high-voltage conductor 7 and the low-voltage conductor are compared with the case where a conductor having a cross-sectional area of "(cross-sectional area of the inner peripheral side conductor) + (cross-sectional area of the outer peripheral side conductor)" is used as each of the high-voltage conductor 7 and the low-voltage conductor 14. Since the effective cross-sectional area of each of the 14 is increased, it is possible to prevent each of the high-voltage conductor 7 and the low-voltage conductor 14 from locally rising in temperature.

A hollow metal pipe was used as each of the inner peripheral side conductor 9 and the outer peripheral side conductor 10 of the high voltage conductor 7, and a hollow metal pipe was used as each of the inner peripheral side conductor 16 and the outer peripheral side conductor 17 of the low voltage conductor 14. Therefore, the cooling water can flow into the inner peripheral side conductor 9, the outer peripheral side conductor 10, the inner peripheral side conductor 16, and the outer peripheral side conductor 17, respectively, so that the high-voltage conductor 7 and the low-voltage conductor 14 can be raised respectively. The temperature is further suppressed. Moreover, since the cooling water is flowed by using the central portion of the inner peripheral side conductors 9 to the outer peripheral side conductor 17 where the current is difficult to flow, the inner peripheral side conductors 9 to the outer peripheral side conductors are affected by securing the cooling water flow path. It is prevented that the effective cross-sectional area of each of the 17 is significantly reduced.
(Example 2)
As shown in FIG. 4, a metal pipe having a flat cross section is used as each of the inner peripheral side conductors 9 and each outer peripheral side conductor 10 for the high pressure conductor 7, and the inner peripheral side conductors 16 and each inner peripheral side conductor 16 are used for the low pressure conductor 14. A metal pipe having a flat cross section is used as each of the outer peripheral conductors 17. Reference numeral W1 is a length dimension along the orthogonal direction of each of the leg portions 2 of the inner peripheral side conductor 9 to the outer peripheral side conductor 17, and reference numeral W2 is a length dimension along the longitudinal direction of the leg portion 2. W1 is set to be four times or more (W1 ≧ 4 × W2) of the length dimension W2. That is, each of the inner peripheral side conductor 9 to the outer peripheral side conductor 17 has an oval shape, and has a hollow shape through which cooling water can flow.

According to the second embodiment, the following effects are obtained.
Each of the inner peripheral side conductor 9 to the outer peripheral side conductor 17 was set to have a flat cross section. Therefore, as compared with the case where a conductor having a circular cross section is used as each of the inner peripheral side conductor 9 to the outer peripheral side conductor 17, the effective cross-sectional area of each of the inner peripheral side conductor 9 to the outer peripheral side conductor 17 increases, so that the high voltage conductor 7 and The local temperature rise of each of the low-voltage conductors 14 is further suppressed. Moreover, the heights of the high-voltage conductor unit 5 and the low-voltage conductor unit 12 can be reduced as compared with the case where a conductor having a circular cross section is used as each of the inner peripheral side conductor 9 to the outer peripheral side conductor 17.

In the second embodiment, a metal pipe having a flat cross section of “W1 <4 × W2” may be used as each of the inner peripheral side conductor 9, the outer peripheral side conductor 10, the inner peripheral side conductor 16 and the outer peripheral side conductor 17.
In Examples 1 and 2, solid conductors may be used as each of the inner peripheral side conductor 9 to the outer peripheral side conductor 17.

In Examples 1 and 2, a cooling liquid different from water may be flowed into each of the inner peripheral side conductor 9 and the outer peripheral side conductor 17.
In Examples 1 and 2, each of the inner peripheral side conductor 9 to the outer peripheral side conductor 17 may be divided into three or more divided conductors.

In Examples 1 and 2 above, the present invention may be applied to a rest induction device different from the high frequency transformer.
Although the examples of the present invention have been described above, these examples are presented as examples and are not intended to limit the scope of the invention. These novel examples can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These examples and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 is an iron core body, 2 is a leg, 7 is a high-pressure conductor, 9 is an inner peripheral side conductor (divided conductor), 10 is an outer peripheral side conductor (divided conductor), 14 is a low-pressure conductor, and 16 is an inner peripheral side conductor (divided conductor). ) And 17 are outer peripheral conductors (divided conductors).

Claims (3)

The iron core body with legs and
The outer peripheral portion of the leg portion of the iron core body is provided with a high-voltage conductor and a low-voltage conductor that are alternately arranged along the leg portion and in which currents flow in opposite directions.
Each of the high-voltage conductor and the low-voltage conductor is composed of a plurality of divided conductors arranged in intersecting directions intersecting the arrangement direction between the high-voltage conductor and the low-voltage conductor.
The plurality of divided conductors of the high-voltage conductor and the plurality of divided conductors of the low-voltage conductor face each other in the arrangement direction.
The direction of the current flowing through the plurality of divided conductors of the high-voltage conductor and the direction of the current flowing through the plurality of divided conductors of the low-voltage conductor are stationary so that the respective divided conductors are joined so that they are in the same direction. Induction equipment. The first aspect of claim 1, wherein each of the high-voltage conductor and the low-voltage conductor has a flat cross-section having a length in the crossing direction larger than that in the arrangement direction as each of the divided conductors. Static induction equipment. The stationary induction device according to claim 1 or 2, wherein each of the high-voltage conductor and the low-voltage conductor is a hollow conductor through which a cooling liquid can flow as each of the divided conductors.

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