KR20040089761A - Method for wiring horizon deflection coil of deflection yoke - Google Patents

Abstract

PURPOSE: A method for treating wiring of a horizontal deflection coil in a deflection yoke is provided to prevent short-circuit due to a miss-wiring by improving a guide unit of a coil separator. CONSTITUTION: A starting wire(S) and a finishing wire(F) are extended from a horizontal deflection coil assembled at the inner surface of a coil separator(20). The starting wire and a finishing wire are leaded out toward the outside through a lower hole(29b) and an upper hole(29a) formed on a guide unit(26) of the coil separator, are guided along a guide groove, and are connected to a printed circuit board. The starting wire and the finishing wire are separated from each other in order not to interfere with each other by burying the space between the lower hole and the upper hole.

Description

Method for wiring of horizontal deflection coil of deflection yoke {Method for wiring horizon deflection coil of deflection yoke}

The present invention relates to a deflection yoke, and more particularly, to improve the structure of the guide portion of the coil separator so that the wire terminal of the horizontal deflection coil is drawn out to the outside through the groove formed in the guide portion of the coil separator and guided to the printed circuit board. A horizontal deflection coil wiring processing method of a deflection yoke in which a start line and an end line of a horizontal deflection coil do not interfere with each other.

In general, a cathode ray tube (CRT) of a TV receiver or a monitor is provided with a deflection yoke, which is one of the most important components of a magnetic device.

The deflection yoke allows the electric signal transmitted in time series to be reproduced as an image on the screen of the cathode ray tube. The direction of the deflection yoke is changed when the electron beam passes through the magnetic field formed through the horizontal and vertical deflection coils. By using this method, the three-color beams scanned from the electron gun are deflected precisely into the fluorescent film applied to the screen surface of the cathode ray tube.

That is, the deflection yoke moves the electron beam scanned by the electron gun in the horizontal direction from left to right and at the same time moves from top to bottom to reproduce the image.

As shown in FIG. 1, the deflection yoke 10 is typically provided in the RGB electron gun section 3 of the cathode ray tube 1, and the electron beam scanned from the electron gun 3a receives the screen surface of the cathode ray tube 1. The fluorescent film applied to (2) is deflected.

2 shows a general deflection yoke.

Referring to this, the conventional deflection yoke 10 is provided with a coil separator 20 and horizontal deflection coils (not shown) which are provided around inner and outer sides of the coil separator 20 to form a horizontal deflection magnetic field and a vertical deflection magnetic field, respectively. And a vertical deflection coil 30 and a ferrite core 40 for enhancing the magnetic fields of the horizontal and vertical deflection coils.

That is, the coil separator 20 is formed to have a substantially conical shape by distinguishing the positions of the vertical and horizontal deflection coils and at the same time electrically insulating each other.

The horizontal deflection coils (not shown) forming the horizontal deflection magnetic field are assembled to be divided into upper and lower sides in the inner circumference of the coil separator 20, and the vertical deflection coils 30 forming the vertical deflection magnetic field are coil separators ( 20) is assembled in the outer circumference of the left and right.

In addition, the deflection coil is fixed so as not to flow through the hot melt adhesive (50).

Then, the ferrite core 40 for strengthening the deflection magnetic field is assembled to surround the vertical deflection coil 30 at the outer circumference of the coil separator 20.

On the other hand, the outer side of the coil separator 20 is provided with a printed circuit board 60 to receive power from the outside while connecting the electrical components, the printed circuit board has a wire terminal extending from each of the horizontal and vertical deflection coils The wiring is processed.

The rear cover 70 is covered to surround the printed circuit board 60.

Fig. 3 shows a conventional method in which the wire terminals of the horizontal deflection coils are wired in the deflection yoke configured as described above.

Referring to this, the conventional coil separator 20 is provided with a screen portion 22 on the screen surface side of the cathode ray tube, and a cylindrical neck portion 24 coupled to the electron gun portion on the electron gun side of the cathode ray tube. The screen portion and the neck portion are integrally connected by a fallopian tube-shaped connecting portion.

And a part of the neck part 24 is provided with the guide part 26. As shown in FIG.

The guide part 26 is divided into a plurality of partitions 27 and is configured to have a total of three guide grooves, that is, an upper guide groove 28a, an intermediate guide groove 28b, and a lower guide groove 28c. In addition, upper and lower outlet holes 29a and 29b are formed through the center portions of the upper guide groove 28a and the lower guide groove 28c.

A pair of horizontal deflection coils (not shown) are assembled on the inner surface of the coil separator 20 configured as described above, and are divided into upper and lower sides. The start line S and the end line of the wire terminals extending from the respective horizontal deflection coils. (F) is drawn out through the lower and upper lead-out holes 29b and 29a of the guide portion 26 to be wired to the printed circuit board 60.

That is, the start line S of the wire terminal is drawn out through the lower lead-out hole 29b of the guide part 26 and guided to be wound about one turn along the lower guide groove 28c to the printed circuit board 60. The wire is processed and the end line F of the wire terminal is drawn out through the upper lead hole 29a and guided along the upper guide groove 28a to be directly wired to the printed circuit board 60.

However, in the conventional method in which the wiring process is performed, a miswiring problem frequently occurs in the process of wiring the starting line of the wire terminal as shown in FIGS. 4 and 5 during the manufacturing process or the assembly process.

That is, as shown in Figure 4, one of the starting line (S) of the total of the two wire terminals extending from each of the pair of horizontal deflection coils are normally guided to the lower guide groove (28c) but the other The start line has a miswiring problem that is guided to the middle guide groove 28b, or as shown in FIG. 5, the start line of one of the start lines S of the two wire terminals in total is the middle guide groove 28b. The miswiring problem is caused by being guided to and the other starting line is guided to the upper guide groove (28a).

Due to such a miswiring problem, a short circuit occurs due to interference between the start line S and the end line F of the wire terminals that are closely connected to each other. This short phenomenon occurs during the completion of the deflection yoke or when the deflection yoke is mounted on the CRT. In this process, a fatal problem is generated, which increases the defective rate.

The present invention has been made to solve the problems described above, the purpose of which is to improve the guide portion of the coil separator mechanically, the start line and the end line of the wire terminal extending from the horizontal deflection coil along the guide groove of the guide portion The present invention provides a method of processing a horizontal deflection coil wiring of a deflection yoke that solves a short problem by preventing a miswiring problem from occurring during wiring.

In the horizontal deflection coil wiring processing method of the deflection yoke according to the present invention for achieving the above object, the start line and the end line of the wire terminal extending from the horizontal deflection coil assembled on the inner side of the coil separator are drawn out at the lower end of the guide part of the coil separator. In the horizontal deflection coil wiring processing method which is drawn out to the outside through the ball and the upper outlet hole and guided along the guide groove and connected to the printed circuit board, a space formed between the lower and upper outlet holes in the guide part of the coil separator. It is characterized in that the hot start line and the end line are separated from each other without interference.

The guide groove is divided into upper, middle, and lower guide grooves by a partition wall, and an upper drawing hole is formed in the upper guide groove, and a lower drawing hole is formed in the lower guide groove, and drawn out through the lower and upper drawing holes, respectively. It characterized in that the intermediate guide groove is filled so that the start line and the end line do not interfere with each other.

Here, the intermediate guide groove is characterized in that only one side portion is filled in the portion where the drawn start line is bent.

In addition, the intermediate guide groove is characterized in that a separate block is fitted.

Alternatively, the guide groove is divided into upper, middle, and lower guide grooves by a partition wall, and an upper drawing hole is formed in the upper guide groove, and a lower drawing hole is formed in the lower guide groove, and wires are drawn out through the lower and upper drawing holes, respectively. The middle guide groove and the upper guide groove are filled so that the start line and the end line of the terminal do not interfere with each other.

Here, the middle and lower guide grooves are characterized in that only one side portion is filled at the portion where the drawn start line is bent.

In addition, the middle and the lower guide groove is characterized in that the separate block is fitted.

1 is a side view schematically showing an example of a typical cathode ray tube;

2 is a side view showing an example of a deflection yoke installed in a general cathode ray tube;

3 is a side view schematically showing a state in which a wire terminal of a horizontal deflection coil is normally wired to a conventional coil separator;

4 is a side view showing an example of a miswiring state which is a problem caused when wiring a wire terminal of a horizontal deflection coil to a conventional coil separator;

5 is a side view showing another example of a miswiring state which is a problem caused when wiring a wire terminal of a horizontal deflection coil to a conventional coil separator;

6 is a side view schematically showing a state in which a wire terminal of a horizontal deflection coil is wired to a coil separator according to an embodiment of the present invention;

7 is a side view schematically showing a state in which a wire terminal of a horizontal deflection coil is wired to a coil separator according to another embodiment of the present invention.

◎ Explanation of symbols for main part of drawing

1: cathode ray tube 2: screen surface

3: electron gun 3a: electron gun

10: deflection yoke 20: coil separator

22: screen portion 24: neck portion

26: guide portion 27: partition wall

28a: upper guide groove 28b: intermediate guide groove

28c: lower guide groove 29a: upper lead hole

29b: lower outlet hole 30: vertical deflection coil

40: ferrite core 50: adhesive

60: printed circuit board 70: cover

100: block F: end line

S: starting line

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The same components as in the prior art will be described using the same names and symbols as in the prior art.

First, the deflection yoke according to the present invention also has a coil separator, horizontal and vertical deflection coils provided around the inner and outer circumferences of the coil separator to form a horizontal deflection field and a vertical deflection field, respectively, and horizontal and vertical deflection yoke. It consists of a ferrite core that strengthens the magnetic field of the coil.

In addition, a printed circuit board that receives power from the outside while connecting electrical components is provided on an external side of the coil separator, and a wire terminal extending from each horizontal and vertical deflection coil is wired to the printed circuit board, and the printed circuit The rear cover is covered to surround the substrate.

The difference between the deflection yoke and the general deflection yoke according to the present invention configured as described above lies in a method in which the wire terminal of the horizontal deflection coil is wired.

6 is a side view schematically showing a state in which a wire terminal of a horizontal deflection coil is wired to a coil separator according to an embodiment of the present invention.

Referring to this, the coil separator 20 according to the present invention has a screen portion 22 on the screen surface side of the cathode ray tube, and a cylindrical neck portion 24 coupled to the electron gun portion on the electron gun side of the cathode ray tube. The screen part and the neck part are integrally connected by the fallopian tube-shaped connecting part.

And a part of the neck part 24 is provided with the guide part 26. As shown in FIG.

The guide part 26 is divided into a plurality of partitions 27 and is configured to have a total of three guide grooves, that is, an upper guide groove 28a, an intermediate guide groove 28b, and a lower guide groove 28c. In addition, upper and lower outlet holes 29a and 29b are formed through the center portions of the upper guide groove 28a and the lower guide groove 28c.

In addition, a part of the intermediate guide groove 28b, that is, a part of the portion where the starting line S of the wire terminal is bent has a filled structure. Here, the method for filling the intermediate guide groove 28b may be molded in a state filled with the first manufacturing, or may be filled by inserting a separate block 100.

A pair of horizontal deflection coils (not shown) are assembled on the inner surface of the coil separator 20 configured as described above, and are divided into upper and lower sides. The start line S and the end line of the wire terminals extending from the respective horizontal deflection coils. (F) is drawn out through the lower and upper lead-out holes 29b and 29a of the guide portion 26 to be wired to the printed circuit board 60.

That is, the start line S of the wire terminal is drawn out through the lower lead-out hole 29b of the guide part 26 and guided to be wound about one turn along the lower guide groove 28c to the printed circuit board 60. The wire is processed and the end line F of the wire terminal is drawn out through the upper lead hole 29a and guided along the upper guide groove 28a to be directly wired to the printed circuit board 60.

When the start line S and the end line F of the wire terminal are wired as described above, the start line S is partially filled in the direction in which the start line S of the wire terminal is guided. ) Is not mis-wired into the intermediate guide groove 28b, and the start line S and the end line F are separated at a sufficient distance.

Of course, one embodiment of the above-described embodiment has a structure in which one side of the intermediate guide groove 28b is filled to isolate the start line S and the end line F of the wire terminal, but the scope of the present invention is a lower drawing hole 29b. If the space formed between the and the upper lead-out hole (29a) can be filled to isolate the start line (S) and the end line (F) of the wire terminal so as not to interfere with each other, any structure can be applied.

That is, as shown in another embodiment of FIG. 7, not only the middle guide groove 28b but also a portion of the upper guide groove 28a, that is, a portion of the portion where the start line S of the wire terminal is bent, may be filled. It may be.

In addition, although not shown, the intermediate guide groove 28b and the upper guide groove 28a may be configured to be completely filled as a whole.

Now, the operational effects of the present invention configured as described above will be described.

In the present invention, when the start line (S) and the end line (F) of the wire terminal extending from the horizontal deflection coil is wired, the space between the start line and the end line is filled in the guide portion 26 for guiding the start line and the end line. Therefore, the start line is miswired as in the prior art, and thus the interference with the end line does not occur.

That is, in the present invention, since a part or the entire part of the intermediate guide groove 28b and the upper guide groove 28a is filled, the starting line S is drawn out through the lower drawing hole 29b to print the printed circuit board 60. It is prevented from being guided to the intermediate guide groove 28b or the upper guide groove 28a when the wiring process is performed.

Therefore, the start line S of the wire terminal is always guided so as to be wound about 1 turn along the lower guide groove 28c and is wired to the printed circuit board 60, and the end line F of the wire terminal is the upper lead-out hole. It is drawn through 29a and guided along the upper guide groove 28a to be directly wired to the printed circuit board 60.

As described above, the present invention prevents a phenomenon in which the start line S and the end line F do not interfere because the incorrect wiring problem is mechanically blocked when the start line S of the wire terminal is wired. It is possible to prevent the short from occurring between the start line S and the end line F of the terminal.

As described above, in the present invention, since the space between the start line and the end line of the wire terminal is filled, no miswiring problem occurs when the start line and the end line are wired, and thus a short circuit occurs due to interference between the start line and the end line. This significantly reduces the process failure rate and reduces the risks due to shorts in operation.

While the invention has been shown and described in connection with specific embodiments as described above, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

Claims (8)

The start line and the end line of the wire terminal extending from the horizontal deflection coil assembled on the inner side of the coil separator are drawn out through the lower and upper drawing holes formed in the guide part of the coil separator and guided along the guide groove to guide the printed circuit board. In the horizontal deflection coil wiring processing method connected to, And a start line and an end line drawn out from each other by filling a space formed between the lower and upper outlet holes in the guide part of the coil separator so as not to interfere with each other. The method of claim 1, Horizontal deflection coil wiring processing method of the deflection yoke, characterized in that the start line is not able to go toward the end line by filling only a portion of one side of the space between the lower and upper outlet hole. The method of claim 1, The guide groove is divided into upper, middle, and lower guide grooves by a partition wall, and an upper drawing hole is formed in the upper guide groove, and a lower drawing hole is formed in the lower guide groove, and a starting line drawn out through the lower and upper drawing holes, respectively. A horizontal deflection coil wiring processing method of a deflection yoke, characterized in that the intermediate guide groove is filled so that the end lines do not interfere with each other. The method of claim 3, The intermediate guide groove is a horizontal deflection coil wiring processing method, characterized in that only one side portion is filled in the portion where the drawn start line is bent. The method of claim 3, The intermediate guide groove is a horizontal deflection coil wiring processing method of the deflection yoke, characterized in that the separate block is fitted. The method of claim 1, The guide groove is divided into upper, middle, and lower guide grooves by a partition wall, and an upper drawing hole is formed in the upper guide groove, and a lower drawing hole is formed in the lower guide groove, and the wire terminals drawn out through the lower and upper drawing holes, respectively. The horizontal deflection coil wiring processing method of the deflection yoke, characterized in that the intermediate guide groove and the upper guide groove is filled so that the start line and the end line of each other do not interfere with each other. The method of claim 6, The middle and the lower guide groove is horizontal deflection coil wiring processing method characterized in that only one side portion is filled in the portion where the drawn start line is bent. The method of claim 6, The middle and the lower guide groove is a horizontal deflection coil wiring processing method of the deflection yoke, characterized in that the separate block is fitted.