JPH02841Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an in-line color cathode ray tube convergence device, and more particularly to a convergence device using a ring-shaped coil.

To generate 4-pole and 6-pole magnetic fields for convergence, 4-pole and 6-pole magnetic fields are placed in the ring-shaped core.
When winding a pole coil, conventionally, as shown in FIGS. 1A and 1B, each of the four-pole and six-pole coils is wound so that adjacent coils have opposite polarities. That is, in FIG. 1A, 4
After winding the first coil 1 ₁ of the pole coil in a forward direction, the second coil 1 ₂ is wound in a reverse direction, and then the third coil 1 is wound in a reverse direction.
The coil 1 ₃ is wound forward, and the fourth and final coil 1 ₄ is wound reversely.

In addition, in FIG. 1B, the first
The coil 2 ₁ is wound forward, the second coil 2 ₂ is wound backwards, the third coil 2 ₃ is wound forward, and the fourth coil 2 ₄ is wound forward.
is wound in reverse, the fifth coil 2 ₅ is wound forward, and the sixth coil 2 ₆ is wound in reverse.

In this case, the winding machine must be capable of reverse winding, and especially in the case of a complete ring core (a ring core that is not divided into two), the copper wire to be wound must be inside the core. It is necessary to wind the wire onto a shuttle (wire storage machine) that runs through the core, and then wind it around the core while rotating it in the opposite direction.For coils that require reverse winding, the winding work is complicated, difficult, and time-consuming. There were such shortcomings. Usually 4
Since each pole and six-pole coil is wound in two sets,
The above disadvantages will be doubled.

The present invention was made to eliminate the above-mentioned drawbacks, and involves winding each of the 4-pole and 6-pole coils around a ring-shaped core in a fixed direction in the circumferential direction.
It is an object of the present invention to provide a convergence device for a color cathode ray tube in which coils are connected so that adjacent coils have opposite polarities.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 2A and 2B are schematic explanatory diagrams showing an embodiment of the present invention. In the case of a 4-pole coil, as shown in FIG. 2A, the first coil 3 ₁ is wound forward from point A in the figure. Then, the third coil ₃₃ is wound forward, and the winding operation is suddenly stopped at point B.
Next, the second coil 3 ₂ is wound forward from point C, and then the fourth coil 3 ₄ is wound forward,
The winding work is completed at point D. After that, points B and D are connected, and a voltage is applied between points A and C. In this way, as in the case of FIG. 1A, the first coil 3 ₁ and the third coil 3 ₃ have positive polarity,
Since the second coil 3 ₂ and the fourth coil 3 ₄ have opposite polarities, it is possible to generate the required four-pole magnetic field. Of course, the same effect can be obtained even if all the coils 3 ₁ to 3 ₄ are wound in reverse.

Next, in the case of a 6-pole coil, as shown in Fig. 2B, the first coil 4 ₁ is wound forward from point A, and then the third coil 4 ₃ is wound forward. ,
Further, the fifth coil ₄₅ is wound in a forward direction, and the winding operation is temporarily interrupted at point B. Next, the second coil 4 ₂ is wound forward from point C, and then the fourth
The coil 4 ₄ is wound normally, and the sixth coil 4 ₆ is further wound normally, and the winding operation is completed at point D. After that, points B and D are connected, and a voltage is applied between points A and C. In this way, as in the case of FIG. 1B, the first coil 4 ₁ ,
Since the third coil 4 ₃ and the fifth coil 4 ₅ have positive polarity, and the second coil 4 ₂ , fourth coil 4 ₄ and sixth coil 4 ₆ have opposite polarity, the required six-pole magnetic field can be can occur. Of course, in this case as well, all the coils 4 ₁ to 4 ₆ may be wound in reverse, but each of the 4-pole and 6-pole coils are wound in the same direction. In the convergence device in which the present invention is implemented, as shown in FIG. Since it is configured to be attached to the terminal board attachment part of the holder with screws 17 and nuts (not visible in the figure), a printed circuit (not visible in the figure) is formed on the back side of the wiring board 15, and this printed circuit is attached to the terminal board attachment part of the holder. Therefore, the electrical connections described above are made. Of course, electrical connections may also be made by other means. In FIG. 3, reference numeral 13 indicates a ring-shaped coil bobbin having twelve cements 12 arranged in the radial direction at approximately equal angular intervals (approximately 30 degrees), and reference numeral 16 indicates a terminal pin attached to the wiring board 15. A wiring processing section/terminal board fixing section 18 is integrally formed at the tip of each segment 12.
The terminals of the 4-pole and 6-pole coils are tied to the wiring management section, and the ring-shaped coil 14 is attached to the wiring board 1 by, for example, heat-sealing the terminal board fixing section to the wiring board 15.
It is fixed at 5. The ring-shaped coil 14 is made by first winding two sets of 6-pole coils in the same direction, offset by about 30 degrees from each other, and then winding two sets of 4-pole coils in the same direction, offset by about 45 degrees from each other. I used what I had. Of course, these are just examples.

As mentioned above, according to the present invention, the 4-pole and 6-pole
Since all the coils of the poles are wound around the ring-shaped core in a constant circumferential direction, the winding work is very easy and the winding time is shortened. Therefore, there is an advantage that work efficiency is greatly improved. On the other hand, the structure of the winding machine becomes simple and the winding technology becomes easy, which makes it possible to automate the winding and has the advantage of mass production. Furthermore, there is also the advantage that a four-pole or six-pole magnetic field can be generated extremely easily.

The embodiments described above are for illustrating the present invention, and therefore, it goes without saying that various modifications and changes other than those described above and shown in the drawings may be made as necessary.

[Brief explanation of the drawing]

1A and B are schematic explanatory diagrams showing the winding state of a conventional ring-shaped coil; FIGS. 2A and B are schematic explanatory diagrams showing the winding state of the ring-shaped coil of the convergence device according to the present invention; The figure is a front view showing an example of a convergence device for a color cathode ray tube in which the present invention is implemented. 3 ₁ to 3 ₄ : 4-pole coil, 4 ₁ to 4 ₆ : 6-pole coil.

Claims (1)

[Scope of utility model registration request] In a color cathode ray tube convergence device that uses a ring-shaped coil in which 4-pole and 6-pole coils are wound toroidally around a ring-shaped core, the 4-pole and 6-pole coils are arranged circumferentially with respect to the ring-shaped core. A convergence device for a color cathode ray tube, characterized in that the coils are wound in a fixed direction, and the coils are connected so that adjacent coils have opposite polarities.