JPS6359309B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a saturable reactor used for correcting pincushion distortion in television receivers.

Conventional Structures and Their Problems Generally, in television receivers, a saturable reactor is used to mainly correct vertical line distortion among screen pincushion distortion.

The first conventional saturable reactor of this type.
The one shown in Fig. 2 has been developed.

That is, as the magnetic core 1, there is a magnetic core structure 2 configured by providing four magnetic legs 2b, 2c, 2d, and 2e orthogonally to a common magnetic leg 2a, and four magnetic legs 2b to 2 of the magnetic core structure 2. The inner two magnetic legs 2c and 2d of the four magnetic legs 2b to 2e of the magnetic core structure 2 are constructed in a cross-shaped shape by the I-shaped magnetic core structure 3 that abuts against the open end of the magnetic core structure 2e. The AC winding 4 is wound around the I-shaped magnetic core structure 3, and the control winding 5 is wound around the I-shaped magnetic core structure 3, so that the current of the AC winding 4 is controlled by the current of the control winding 5. was.

With such a configuration, the control winding 5 is inserted into the I-shaped magnetic core structure 3, and this control winding 5 is inserted into the magnetic core structure 3.
When moved to the center of the AC winding 4 and combined with the magnetic core structure 2 incorporating the AC winding 4, the assembly becomes
The drawback was that it required a lot of man-hours.

Furthermore, when inserting the gap paper 6 into the abutting surfaces of the magnetic core structures 2 and 3, the control winding 5 becomes jammed, making it impossible to insert a long gap paper over the entire surface.
It is necessary to insert two sheets of gap paper 6a and 6b from both sides, which also results in poor workability and poor productivity.

OBJECTS OF THE INVENTION The present invention obviates the above-mentioned conventional drawbacks and aims to provide a saturable reactor that is easy to assemble.

Structure of the Invention In order to achieve the above object, the saturable reactor of the present invention includes a magnetic core structure in which a common magnetic leg is provided with four orthogonal magnetic legs and an I-shaped magnetic core structure, or a common magnetic leg is provided with four orthogonal magnetic legs. It has a cross-shaped magnetic core formed by butting together two magnetic core components provided with magnetic legs, and either an AC winding or a control winding is wound so as to span the two magnetic legs inside this magnetic core. Turn this 2
The other winding is wound so as to straddle one of the two inner magnetic legs and the outer magnetic leg adjacent to the inner magnetic leg, thereby simplifying assembly.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

7 is a cross-shaped magnetic core, and this magnetic core 4 has four magnetic legs 8b, 8c,
It is constituted by a magnetic core structure 8 provided with 8d and 8e, and an I-shaped magnetic core structure 9.

An AC winding 10 is wound around the magnetic legs 8c and 8d inside the magnetic core structure 8 so as to straddle these two magnetic legs 8c and 8d. The control winding 11 is wound so as to straddle one of the outer magnetic legs 8b.

This AC winding 10 has flanges 12 at both ends, and the flanges 12
The control winding 11 also has flanges 15 at both ends, and a terminal pin 16 is attached to one of the flanges 15. Planted coil bobbin 17
It is wound around and attached to the magnetic legs 8b and 8c. This state is as shown in FIG.

With the above configuration, the magnetic flux generated when current flows through the control winding 11 flows from the magnetic legs 8b and 8c through the magnetic core structure 9 to the magnetic legs 8d and 8e, and this magnetic flux causes the AC winding 10 to control the current.

According to this configuration, the AC winding 10, the control winding 1
1, the magnetic legs 8c, 8d, 8b, 8 of the magnetic core structure 8
Since it only needs to be attached to c, assembly is easy.

Furthermore, when inserting the gap paper 18 into the abutting surface between the open ends of the magnetic legs 8b to 8e of the magnetic core structure 8 and the magnetic core structure 9, a long piece of paper can be used. I have never been in a bad situation.

Note that if the coil bobbins 14 and 17 of the AC winding 10 and the control winding 11 are integrally molded as shown in FIG. 5, the workability of assembly can be further improved.

The magnetic core 7 can also be constructed by butting together two magnetic core structures 8 each having a common magnetic leg 8a and four orthogonal magnetic legs 8b to 8e, as shown in FIG. However, in this configuration, it is necessary to use independent coil bobbins 14 and 17 to facilitate insertion of gap paper 18.

Furthermore, in each of the above embodiments, the AC winding 10 is attached to the two inner magnetic legs 8c and 8d, and the magnetic legs 8c and 8
Although the configuration in which the control winding 11 is wound around the magnetic legs 8c and 8d has been described, the control winding 11 is wound around the magnetic legs 8c and 8d.
There is no difference in the effect even if the AC winding 10 is wound around b and 8c.

Effects of the Invention As described above, the saturable reactor of the present invention has a magnetic core structure in which a common magnetic leg is provided with four orthogonal magnetic legs, an I-shaped magnetic core structure, or a common magnetic leg in which four orthogonal magnetic legs are provided. The two provided magnetic core components are butted together to form a cross-shaped magnetic core, and either the AC or control winding is wound so as to span the two magnetic legs inside this magnetic core, and the magnetic legs inside this one are wound. Since the remaining windings are wound so as to straddle one of the outer magnetic legs adjacent to that magnetic leg, it is easy to assemble each winding into the magnetic core, which improves productivity. To make it possible to insert a long piece of gap paper without any hindrance even when inserting gap paper into the butt surface of the machine, making it highly productive and advantageous in terms of cost. It has the advantage of being able to perform various functions, and is of great industrial value.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional saturable reactor, FIG. 2 is a schematic diagram of the same, FIG. 3 is a schematic diagram of an embodiment of the saturable reactor of the present invention, and FIG. 4 is a diagram of the same saturable reactor. FIG. 5 is a perspective view of a winding portion of another embodiment used in the same saturable reactor, and FIG. 6 is a schematic configuration diagram of another embodiment of the saturable reactor. 7... Eye-shaped magnetic core, 8... Magnetic core structure, 8a
... Common magnetic leg, 8b to 8e ... Magnetic leg, 9 ... I-type magnetic core structure, 10 ... AC winding, 11 ... Control winding, 12 ... Tsuba, 13 ... Terminal pin, 14 ……
Coil bobbin, 15... tsuba, 16... terminal pin,
17...Coil bobbin, 18...Gap paper.

Claims (1)

[Claims] 1 A cross-shaped magnetic core structure consisting of a magnetic core structure in which four orthogonal magnetic legs are provided on a common magnetic leg and an I-shaped magnetic core structure, or two magnetic core structures in which four orthogonal magnetic legs are provided in a common magnetic leg. A magnetic core is provided, and either an AC winding or a control winding is wound so as to span the two inner magnetic legs of this magnetic core, and one of the inner magnetic legs and one outer side adjacent to the magnetic legs are wound. A saturable reactor is formed by winding the remaining windings to span the magnetic legs of the reactor.