JPH05135710A - Deflection yoke terminal board - Google Patents

Abstract

PURPOSE:To fit a deflection yoke terminal board of one type to terminal board fitting sections of different types formed on a deflection yoke bobbin. CONSTITUTION:A notch section P1 compatible with two claws vu formed on the vertical second layer and fitting holes P2, P3 compatible with two claws vd formed on the vertical fourth layer of a bobbin B is formed on the upper side U of a deflection yoke terminal board P. A notch section P4 compatible with two claws hu formed on the horizontal second layer of the bobbin B and fitting holes P5, P6 compatible with two claws hd formed on the horizontal fourth layer of the bobbin B are formed on the lower side D of the deflection yoke terminal board P.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke terminal plate for deflecting an electron beam emitted from an electron gun in a cathode ray tube such as a picture tube of a television receiver.

[0002]

2. Description of the Related Art A cathode ray tube such as a picture tube of a television receiver is provided with a deflection yoke for vertically and horizontally deflecting an electron beam emitted from an electron gun incorporated in a rear neck. It is externally attached to the boundary between the and funnel. In this deflection yoke, a horizontal deflection coil is usually wound in a saddle shape on the inside of a resin bobbin spread like a trumpet, and a vertical deflection coil is also wound on the outside of the bobbin in a saddle shape. A saddle / saddle type in which a core is attached to the core and a saddle / toroidal type in which a vertical deflection coil is wound around the outer periphery of the core in a toroidal shape are known.

FIG. 6 is a view showing a conventional saddle / saddle type deflection yoke.

In this figure, 1 is a resin bobbin formed in a trumpet shape, V is a vertical deflection coil wound in a saddle shape on the outside of the resin bobbin 1, and 3 is a vertical deflection coil V so as to enclose the vertical deflection coil V. The two-divided cores 4 mounted on the bobbin 1 are provided on the small-diameter side of the bobbin 1, and each of the vertical deflection coil V and the horizontal deflection coil H (not shown) wound in a saddle shape inside the bobbin 1. A rear enlarged portion 5 having a groove for wiring a lead wire on its side portion is located outside the core 3 via the rear enlarged portion 4 between a part of the rear enlarged portion 4 and a large diameter side portion of the bobbin 1. Is a rectangular terminal plate attached to the.

The terminal plate 5 is provided with a differential coil 6 for adjusting the inductance of the vertical and horizontal deflection coils, and electrical parts such as resistors used for blocking damping and linking, which are mounted on the terminal plate 5. Rear expansion part 4
It is locked to the claw formed on the. That is, as shown in FIG. 7, the rear enlarged portion 4 has a plurality of fin-shaped portions for guiding a plurality of lead wires of vertical and horizontal deflection coils to the position of the terminal plate 5 while maintaining an insulating state. 4b are formed, and two fins 4u and 4d for locking the terminal plate 5 are formed on the fin-shaped portions 4b of the uppermost layer and the lowermost layer. On the other hand, the terminal plate 5 has a cutout 5u and a hole 5d. The distance between the cutout 5u and the hole 5d is standardized according to the distance between the claws 4u and 4d.
Then, the claw 4u formed in the uppermost layer is hooked in the cutout 5u, and the claw 4d formed in the lowermost layer is inserted into the hole 5d to attach the terminal plate 5.

By the way, on the inner side of the rear enlarged portion 4, FIG.
As shown in FIG. 5, the transition Ha of the horizontal deflection coil H is inserted. However, when the horizontal deflection coil H having a small transition Ha is adopted, in order to secure the mounting stability of the horizontal deflection coil H,
The space between the fin-shaped portions 4b of the uppermost layer and the lowermost layer is narrowed. When the distance between the fin-shaped portions 4b of the uppermost layer and the lowermost layer is narrowed in this manner, the claws 4u formed on the uppermost layer are left as they are.
The distance between the lowermost claw 4d and the lowermost claw 4d also becomes narrow, and the standardized terminal plate 5 cannot be used. Therefore, in order to be able to use the standardized terminal plate 5, as shown in FIG. 9, the support portion of the lowermost claw 4d is formed into an "L" shape so that the uppermost claw 4u and the lowermost claw 4u are formed. The distance between the claw 4d and the claw 4d was adjusted to the standard distance between the cutout portion 5u of the terminal plate 5 and the hole 5d.

[0007]

By the way, when adjusting the inductance of the vertical and horizontal deflection coils by the differential coil 6, inside the hole 6a (see FIG. 6) of the cylindrical bobbin around which the differential coil 6 is wound. The inductance is changed by rotating the iron core inserted in the with an adjusting rod and sliding the iron core by this rotation.
Since it is mounted on the upper side as shown in FIG. 6, the direction of the differential coil 6, that is, the direction of the hole 6a of the cylindrical bobbin is horizontal, and the adjustment rod is also adjusted from the lateral direction. However, since adjustment from the lateral direction is difficult due to the space in the cabinet that houses the cathode ray tube, etc., recently, in order to allow adjustment from above, the terminal plate 5 for the differential coil 6 has been installed. Deflection yokes that have been mounted on the left side or the right side have also appeared.

However, when the terminal plate 5 is attached to the left side or the right side and the horizontal deflection coil H having a thin transition Ha is adopted, in order to use the standardized terminal plate 5 on the left side or the right side. , The left side or the right side, it is necessary to make the supporting portion of the lowermost claw 4d into an "L" shape, but for the following reasons, the supporting portion of the lowermost claw 4d is "L" shaped. It may not be possible to form an L shape. That is, when the bobbin 1 is manufactured, one bobbin is divided into left and right parts, and the left and right bobbins are separately molded by a mold, and the mold removing direction is as shown by an arrow in FIG. Since it is in the left and right direction, the left side,
Alternatively, if the support portion of the lowermost claw 4d on the right side is to be formed into an "L" shape, a hole is opened in the portion a of FIG. 10 and the shape of the portion b cannot be removed. Further, although the vertical deflection coil V is mounted from the horizontal direction as shown in FIG. 11, if the support portion of the lowermost claw 4d is formed into an "L" shape, that portion becomes an obstacle and the vertical deflection coil V You may not be able to wear it. Also, in some cases, the support portion of the uppermost claw 4d cannot be formed into an "L" shape because of the assembly. As described above, since the supporting portions of the uppermost and lowermost claws 4d cannot be formed in an “L” shape on the left and right sides, in other words, the terminal plate 5 having a standardized spacing between the uppermost and lowermost claws is used. Since it cannot be fitted to the mounting portion of No. 2, the terminal plates 5 to be mounted on the left and right sides must be made of a different type when they are mounted on the upper and lower sides, which increases the manufacturing cost.

The present invention has been made in view of the above points, and an object thereof is to attach one type of deflection yoke terminal plate to a different type of terminal plate mounting portion formed on a deflection yoke bobbin. Is to

[0010]

In order to achieve the above object, the deflection yoke terminal plate according to the present invention has mounting portions facing each other, which are adapted to different types of terminal plate mounting portions formed on the bobbin for the deflection yoke. It has a structure formed on two sides.

[0011]

Now, on the upper side of the deflection yoke terminal plate, there is formed a mounting portion x which is suitable for the type X terminal plate mounting portion formed on the deflection yoke bobbin, and on the lower side thereof is the deflection yoke terminal plate. It is assumed that the mounting portion y that is compatible with the type Y terminal plate mounting portion formed on the bobbin is formed.

For example, when the bobbin for one deflection yoke is provided with two terminal plate mounting portions of type X and type Y, the bobbin type X terminal plate mounting portion is mounted with the deflection yoke terminal plate. The deflection yoke terminal plate is attached to the bobbin in correspondence with the portion x, and the deflection yoke terminal plate is attached to the bobbin in association with the type Y terminal plate attachment portion of the bobbin. That is, one type of deflection yoke terminal plate can be used for the two types of bobbin terminal plate mounting portions.

[0013]

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

FIG. 1 is a plan view of a deflection yoke terminal plate P according to an embodiment of the present invention, and FIG. 2 is a rear enlarged portion of a deflection yoke bobbin B to which the deflection yoke terminal plate P of FIG. 1 is attached. It is a perspective view which shows some.

As shown in FIG. 2, the rear enlarged portion of the bobbin B has four layers of fin-shaped portions f1, f2, f3, and f4. Two claws vu and vd are formed on the fin-shaped part f4 of the fourth layer, and claws hu and hd are respectively formed on the fin-shaped part f2 of the second layer and the fin-shaped part f4 of the fourth layer in the left-right direction. Two are formed. In this case, the claw vd of the fin-shaped portion f4 of the fourth layer in the vertical direction is, as shown in FIG.
4, the claw hd of the fin-like portion f4 of the fourth layer in the left-right direction is formed at the tip of the protrusion extending from the lower surface of the protrusion 4, and as shown in FIG. Is formed at the tip of. Therefore, the claw v of the second layer in the vertical direction is
A distance d1 between u and the fourth layer claw vd is larger than a distance d2 between the second layer claw hu and the fourth layer claw hd in the left-right direction. The distance between the two claws in the second layer is the vertical direction,
The distance d3 is the same in the left-right direction, and is equal to 2 in the fourth layer.
The distance between the two claws is the same in both vertical and horizontal directions d
It is 4.

The deflection yoke terminal plate P is made of a synthetic resin such as polyethylene terephthalate,
In addition to the terminal mounting hole, the differential coil mounting hole, and the lead wire drawing hole, two types of mounting portions are formed. That is, the notch P is provided on the upper side U of the deflection yoke terminal plate P.
1, a mounting portion including the mounting holes P2 and P3 is formed, and a mounting portion including the cutout portion P4 and the mounting holes P5 and P6 is formed on the lower side D. In addition, “⊚” shown in FIG. 2 is an identification mark for identifying the upper side or the lower side.

Notch P1 on the upper side U and mounting holes P2, P3
Is equal to the distance d1 between the claw vu of the second layer and the claw vd of the fourth layer of the bobbin B in the vertical direction, and the distance between the notch P4 on the lower side D and the mounting holes P5 and P6 is the bobbin. It is equal to the distance d2 between the claw hu of the second layer and the claw hd of the fourth layer in the left-right direction of B. In addition, the notch P on the upper side U and the lower side D
The lengths of 1 and P4 are both the claw distance d3 of the second layer of the bobbin B.
And the distance between the two mounting holes P2, P3 on the upper side U,
The distance between the two mounting holes P5 and P6 on the lower side D is equal to the distance d4 between the claws of the fourth layer of the bobbin B.

That is, the notch P1 of the deflection yoke terminal plate P and the mounting holes P2, P3 are formed at positions which fit the second layer claw vu and the fourth layer claw vd of the bobbin B in the vertical direction. The notch P4 on the side of the deflection yoke terminal plate P having the identification mark “⊚” and the mounting holes P5 and P6 are adapted to the second layer claw hu and the fourth layer claw hd in the left-right direction of the bobbin B. It is formed at the position where Therefore, as shown in FIG. 5, when the deflection yoke terminal plate P is attached in the vertical direction of the bobbin B, the side having the identification mark "⊚" is attached downward, and when the deflection yoke terminal plate P is attached in the horizontal direction, the identification is performed. Install it with the side with the mark "◎" facing up.

As described above, even if the bobbin B has two types of terminal plate mounting portions, it is sufficient to prepare only one type of deflection yoke terminal plate P.
Since it is not necessary to separately prepare the two types of deflection yoke terminal plates, it is possible to reduce the cost. Further, since the correspondence between the two mounting portions of the bobbin B and the two mounting portions of the deflection yoke terminal plate P can be easily recognized by the identification mark “⊚”, the mounting work is simplified.

The present invention is not limited to the above embodiment, but it is also possible to attach, for example, deflection yoke terminal plates having two attachment portions to separate bobbins.

[0021]

According to the present invention, one type of deflection yoke terminal plate can be attached to different types of terminal plate attachment portions formed on the deflection yoke bobbin, and the deflection yoke terminal plate to be manufactured. Since the number of types can be reduced, the production cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a deflection yoke terminal plate according to an embodiment of the present invention.

FIG. 2 is a view showing an example of a deflection yoke bobbin to which a deflection yoke terminal plate according to an embodiment of the present invention is attached.

FIG. 3 is a view showing a vertical mounting structure of the bobbin shown in FIG.

FIG. 4 is a view showing a vertical mounting structure of the bobbin shown in FIG.

FIG. 5 is a diagram showing how to attach a deflection yoke terminal plate according to an embodiment of the present invention.

FIG. 6 is a perspective view of a general saddle / saddle type deflection yoke.

FIG. 7 is a view showing a conventional attachment structure of a bobbin for a deflection yoke and a terminal plate.

FIG. 8 is a diagram showing the relationship between the distance between the upper and lower claws of the bobbin and the crossover of the horizontal deflection coil.

FIG. 9 is a view showing a modified example of a bobbin mounting structure for adapting to a standardized conventional deflection yoke terminal plate.

FIG. 10 is a diagram showing the reason why the distance between the upper and lower claws cannot be adapted to the conventional standardized deflection yoke terminal plate in the horizontal direction of the bobbin due to the mold.

FIG. 11 is a diagram showing the reason why the spacing between the upper and lower claws cannot be adapted to the conventional standardized deflection yoke terminal plate in the left-right direction of the bobbin in relation to the mounting direction of the horizontal deflection coil.

[Explanation of symbols]

B Bobbin for deflection yoke vu, vd, hu, hd Claw formed on bobbin P Deflection yoke terminal plate P1, P4 Notches formed on deflection yoke terminal plate P2, P3, P5, P6 Deflection yoke terminal Mounting holes formed on the plate

Claims (1)

[Claims] 1. A terminal plate for a deflection yoke, characterized in that mounting portions adapted respectively to terminal plate mounting portions of different types formed on a bobbin for the deflection yoke are formed on two opposing sides.