JPS6028031Y2 - Casted deflection yoke - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a castrated deflection yoke suitable for use, for example, in a deflection device for a cathode ray tube of a small television receiver.

The structure of a conventional castrated deflection yoke is as shown in FIG.

In the figure, 1 is a castrated core, 2 is a vertical deflection coil, 3 is a horizontal deflection coil, 4 is a holder containing the right end surfaces of the vertical and horizontal deflection coils 2 and 3, and 5 is a centering magnet.

The castrated core 1 is a cylindrical ferrite core that faces the inner periphery of a neck hole 6 formed through the cathode ray tube in the axial direction, into which vertical and horizontal deflection coils 2 and 3 are inserted. A substantially circular groove is formed therethrough.

The convex portion formed between each groove is called a cast.

The illustrated vertical and horizontal deflection coils 2 and 3 are fitted into the grooves, and their left end portions are molded to match the shape of the funnel portion.

The right end of each deflection coil is molded inside the holder 4.

This holder 4 has a terminal plate 7 fixed to its outer periphery for processing the terminal lead wires of each deflection coil, and a mounting body made of a synthetic resin material into which the neck of the cathode ray tube is fitted from the right end of the holder 4. 8 is provided.

A center ring magnet 5 that is in contact with the right end of the holder 4 is attached to a cylindrical attachment body 8 in a fitted state.

5a indicates a rotating piece of the centering magnet 5;
Centering setting is performed by selectively rotating the rotating piece 5a.

The cylindrical mounting body 8 is divided into a plurality of parts on the circumference, and each mounting circular arc piece 8a is given elasticity.

Reference numeral 9 indicates a fixing band for fixing the deflection yoke to the neck portion of the cathode ray tube, which is wound around the outer periphery of the mounting arcuate piece 8a.

That is, the deflection yoke is fixed to the neck portion by tightening the tightening screws 10 engaged with both ends of the fixing band 9.

Note that reference numeral 11 indicates a cut-and-raised piece for regulating the movement of the centering magnet 5 in the axial direction.

The conventional castrated deflection yoke having the above-mentioned structure presents considerable difficulty in assembly work, particularly in processing the ends of each deflection coil.

That is, the terminal lead wire can be taken out at the right end of each deflection coil, but this part is not connected to the holder 4.
Therefore, it is necessary to perform terminal processing before assembling the holder 4.

Then, the holder 4 is assembled after pulling out the terminal-treated lead wire 12.
Since there is a risk that the coating may be torn, considerable care must be taken when performing this work, resulting in poor workability and disadvantageous factors for assembly line work.

In view of the above points, the main purpose of the present invention is to prevent the above-mentioned drawbacks by changing the structure and assembly process of the castrated deflection yoke in order to facilitate the terminal processing work of the lead wire. It is something to do.

Hereinafter, specific examples of the present invention will be explained in detail with reference to the drawings.

FIG. 2 is a side view of a castrated deflection yoke showing an example of the present invention.

The same reference numerals are given to the parts corresponding to those shown in FIG. has been done.

As shown in FIG. 3, this terminal plate 14 has a substantially circular outer shape, and in the center thereof there is a neck hole 6 bored in the castrated core 1 and a cast plate exactly the same as the coil insertion groove. A rated-shaped hole 15 is bored in the insulator, and a terminal piece 16 for taking out the terminal lead wire 12 of each deflection coil to the outside is formed at the upper and lower parts of the insulator.

Note that 17 indicates a castrated fixing hole, and 18 indicates a mounting body fixing hole.

The assembly of this castrated deflection yoke is as follows.

First, the terminal plate 14 is fixed to the right end surface of the castrated core 1 through the castrated fixing hole 17 with screws.

At that time, the hole 6 of the castrated core 1 and the terminal plate 14
It is considered that the holes 15 and 15 coincide with each other.

Thereafter, vertical and horizontal deflection coils 2 and 3 are inserted into each groove of the castrated core 1, and the left and right ends of the coils are shaped as shown in the figure.

Then, the terminal lead wire 12 of each coil is soldered to the corresponding terminal piece 16, and the mounting body fixing hole 18 is inserted into the terminal plate 14.
A castrated deflection yoke 19 is constructed by fixing the mounting body 8 with screws.

The mounting body 8 has the same structure as before, and a deflection yoke fixing band 9 is wrapped around its outer peripheral surface.

The axial direction of the centering magnet 5 is restricted by a cut-and-raised piece 11 cut and raised from the mounting body 8 so as not to contact each coil.

FIG. 4 is a side view of a castrated deflection yoke showing another example of the present invention.

This example is the same in that the terminal plate 21 is fixed to the right end surface of the castrated core 1.

No mounting body is provided on the right side of the terminal plate 21, and the deflection yoke fixing band 9 wrapped around the outer peripheral surface of the terminal plate 21 is used to integrally fix the terminal plate 21 to the neck portion of the cathode ray tube.

That is, as shown in FIGS. 4 to 7, this terminal plate 21 is a circular plate-shaped body whose outer shape almost matches the outer shape of the castrated core 1, and has castrated holes 15. The arrangement is the same as the above-mentioned side, but the difference is that the terminal board 21 is divided into two parts, upper and lower.

In FIGS. 5 and 6, 22 indicates the mating surface of the two parts.

In reality, an uncut portion may be provided at either the left or right end of the terminal board 21 so that the terminal board 21 is physically integrated.

The terminal piece 16 for processing the terminal lead 12 of each deflection coil is fixed to the terminal plate 21 so as to extend in the axial direction of the castrated core 1, unlike the above-described example.

Furthermore, as shown in FIGS. 6 and 7, this terminal plate 21 has a cylindrical receiver that supports the centering magnet 5 on its right end surface, which is integrally formed with the body 23 divided into upper and lower halves. There is.

The inner surface of the body 23 of the cylindrical receiver is designed to have the same distance or a slight distance from the bottom of the castrated groove 15, and the molding process of each deflection coil inserted into the groove 15 is Consideration should be given to not being inhibited by the body 23.

The cylindrical receiver is provided with three protrusions 24 at the end of the body 23, and the centering magnet 5 is restricted from moving in the axial direction by these protrusions 24 and a fixing plate 25, which will be described later.

That is, the protrusion 24 is provided at a position where the cylindrical receiver is divided into three equal parts on the outer periphery of the right end surface of the body 23, and on the other hand, the fixing plate 25 has a notch recess 26 larger than the protrusion 24 (see FIG. 8).
This is done by interposing the centering magnet 5 and the protrusion 24.

Specifically, the fixing plate 25 has its notch recess 26 and protrusion 24.
After aligning them, as shown in FIG. 7, the centering magnet 5 is held down by rotating slightly.

Therefore, the centering magnet 5 is attached to the terminal plate 21.
After attaching, only the upper terminal plate of this terminal plate 21 is fixed to the castrated core 1.

Reference numeral 28 indicates a mounting screw (see Fig. 5), and each deflection coil is inserted into a predetermined groove, and both ends of each deflection coil are molded, and the terminal lead wire 12 is attached to the terminal piece 16 of the terminal plate 21. Soldered castrated deflection yoke 29
Configure.

As a result, the neck portion of the cathode ray tube can be inserted into this deflection yoke 29 and its position can be fixed by the deflection yoke fixing band 9.

As explained above, according to the present invention, at one end of the castrated core 1 of the castrated deflection yoke, a castrated hole 15 having the same shape as the neck hole 6 and the coil groove of the castrated core 1 is provided. Since the terminal plate 14 or 21 with the
The workability of terminal processing of the horizontal deflection coils 2 and 3 is improved, and insulation between the right end portions of the respective deflection coils 2 and 3 and the castrated core 1 can be ensured.

In other words, in the past, the right end of each deflection coil was enclosed in a holder, so when connecting the terminal lead wire to the outside, it was difficult to connect the terminal lead wire to the outside, which caused various inconveniences and deteriorated work efficiency, as mentioned at the beginning. However, according to the present invention, since the terminal lead wire is always exposed to the outside, it is easy to inspect for defective conditions, and considerable attention is not required in this type of assembly work, and it can be used in assembly work. A suitable castrated deflection yoke can be provided.

[Brief explanation of drawings]

FIG. 1 is a side view showing an example of a conventional castrated deflection yoke, FIG. 2 is a side view showing an example of a castrated deflection yoke according to the present invention, and FIG. 3 is a front view showing an example of a terminal plate. Figure 4 is a side view showing another example of the castrated deflection yoke according to the present invention, and Figure 5 is a side view showing another example of the castrated deflection yoke according to the present invention.
6 and 7 are longitudinal sectional views and front views showing other examples of the terminal board, and FIG. 8 is a front view showing an example of the fixing plate. 1 is castrated core, 2 is vertical deflection coil, 3
12 is a horizontal deflection coil, 12 is a terminal lead wire, 14.21 is a terminal plate, 15 is a castrated hole, and 16 is a terminal piece.

Claims (1)

[Scope of utility model registration request] A terminal plate in which a hole in the same castrated shape as the groove of the castrated core is formed is fixed to the end face of the castrated core of the castrated deflection yoke, and the castrated core and the terminal plate are connected to each other. Vertical and horizontal deflection coils are housed in the formed continuous castrated holes, and the terminal leads of the vertical and horizontal deflection coils are connected by soldering to a terminal piece provided on the terminal plate, and the terminal piece A castrated deflection yoke characterized by supplying more deflection current.