JPH06120053A - Saturable reactor transformer - Google Patents

Abstract

PURPOSE:To enable a saturable reactor transformer to be lessened in size and enhanced in dielectric breakdown strength and assembling operation efficiency. CONSTITUTION:A secondary coil 7, a primary coil 8, a primary coil bobbin, and a secondary coil bobbin are formed into a bobbin 9 of integral structure. Secondary coil parts 9a are arranged above a primary coil part 9b. The legs of cores 6a and 6b are inserted into through-holes 10a, 10b, and 10c provided to the bobbin 9. Therefore, a saturable reactor transformer of this design can be lessened in size and improved in assembling operation efficiency, and the primary coil 8 and the secondary coil 7 are improved in dielectric breakdown strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a saturable reactor transformer used in television receivers and the like.

[0002]

2. Description of the Related Art The structure of a conventional saturable reactor transformer will be described below with reference to FIG.

FIG. 3 is a sectional view showing the internal structure of a conventional saturable reactor transformer. Here, 1 is a core, 2 is a primary bobbin, 3 is a secondary bobbin, 4 is a secondary coil, and 5 is 1 for controlling the inductance of the secondary coil.
The next coil. The secondary coil 4 may use a conductor having a large wire diameter in order to pass a large current. In this case, the cross section in the wound state becomes large, and the space A is formed above the secondary coil 4.
Can be done.

[0004]

In such a conventional saturable reactor transformer, since the secondary coil 4 generally uses a conductor having a large wire diameter in order to pass a large current, a space A is formed above the secondary coil 4. It has a structure that allows Therefore, the conventional configuration is large in shape. Also, 1
Since the secondary coil 5 and the secondary coil 4 are close to each other, the insulating force is small, and the primary bobbin and the secondary bobbin are separated from each other, resulting in poor assembly efficiency.

That is, conventionally, the secondary bobbin is arranged next to the primary bobbin. Even if the primary bobbin and the secondary bobbin are integrated, the problem that the winding is difficult occurs. Therefore, after inserting the primary bobbin 2 in which the primary coil is wound around the core 1, the secondary bobbin 3 in which the secondary coil 4 is wound is inserted.
As the work of inserting the was done, the assembly efficiency was poor.

The present invention is intended to solve the above problems, and has as its object the miniaturization of a saturable reactor transformer, the increase of the insulating force between the primary coil and the secondary coil, and the improvement of the assembling efficiency.

[0007]

In order to solve the above problems, in the saturable reactor transformer of the present invention, a secondary bobbin is arranged above the primary bobbin, and the primary bobbin and the secondary bobbin are integrated. I was a figure.

[0008]

According to the present invention, the space above the secondary coil is eliminated by the above construction, the saturable reactor transformer is reduced in size, and the bobbin for the primary coil and the bobbin for the secondary coil are arranged so as to be offset from each other. Therefore, when the coil is wound around one bobbin, the other bobbin does not get in the way and the working efficiency can be improved. Further, the primary coil and the secondary coil are insulated by the bobbin, so Power also increases.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

1 and 2, 6a and 6b
Is a core, and a tripod core is formed by stacking the core 6a and the core 6b. Reference numeral 7 is a secondary coil, and 8 is a primary coil. Reference numeral 9 is an integral bobbin in which the primary coil bobbin and the secondary coil bobbin are integrated. Secondary coil part 9
“A” is arranged above the primary coil portion 9b. or,
The integral bobbin 9 has through holes 10a, 10b, 10c for accommodating the legs of the cores 6a, 6b. An output pin 11 serves as an input / output terminal of the secondary coil 7. Reference numeral 12 is a pin holding portion of the output pin 11.

By arranging the secondary coil 7 having a large wire diameter and a small number of turns in the upper portion of the primary coil 8 having a small wire diameter and a large number of turns in this way, the upper space A of the secondary coil, which has been conventionally produced, is provided. It can be eliminated, and the shape of the saturable reactor transformer can be miniaturized. Further, since the secondary coil 7 is arranged above the primary coil 8 and the primary coil 8 and the secondary coil 7 are insulated by the integral type bobbin, the insulating force is increased as compared with the conventional case.

Further, the primary coil is formed by winding a copper wire several tens to several hundreds of times, but since the primary coil portion 9b is arranged below the secondary coil portion 9a, the primary coil is The secondary coil portion 9a does not get in the way when it is wound. The primary coil 8 and the secondary coil 7 are wound around the integral bobbin 9 and mounted on the legs of the cores 6a and 6b, so that the work efficiency is improved.

[0013]

As described above, according to the present invention, since the secondary bobbin is arranged above the primary bobbin, the primary bobbin and the secondary bobbin can be integrated, and the saturable reactor transformer can be integrated. The shape can be miniaturized. In addition, the insulation force between the primary coil and the secondary coil can be increased, and the work efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a saturable reactor transformer according to an embodiment of the present invention.

FIG. 2 is a sectional view showing the internal structure of a saturable reactor transformer according to an embodiment of the present invention.

FIG. 3 is a sectional view showing the internal structure of a conventional saturable reactor transformer.

[Explanation of symbols]

 6a, 6b core 7 secondary coil 8 primary coil 9 integrated bobbin 11 output pin

Claims (1)

[Claims] 1. A primary / secondary integrated bobbin having a tripod core and a secondary bobbin for winding a secondary coil arranged at a position displaced from a primary bobbin for winding a primary coil. Is attached to the leg portion of the tripod core, and the inductance of the secondary coil is controlled by supplying a current to the primary coil to saturate the core.