JP2001250479A - Deflection coil winding device and method, and deflection yoke - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deflection coil winding device capable of increasing the design freedom of the deflection coil winding distribution and improving the convergence characteristic and deflection distortion characteristic. SOLUTION: A horizontal deflection coil 2 is formed by winding wires round the winding space between a convex coil former 51 and a concave coil former 52. The convex coil former 51 is equipped with split pins 501 and the concave coil former 52 is equipped with split pins 502. The split pins 501 are inserted into the winding space nearly in parallel with the tube axis and the split pins 502 are inserted into the winding space approximately in the direction perpendicular to the side faces 2C. In dividing the horizontal deflection coil 2 into a plural sections, the split pins 501, 502 are inserted into the winding space from the alternately different directions to form at least 3 adjacent sections at a part thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a winding device and a winding method for winding a deflection coil used in a deflection yoke, and a deflection yoke.

[0002]

2. Description of the Related Art In an image display apparatus using a three electron gun in-line type color picture tube, three electron beams emitted from three electron guns are satisfactorily concentrated (convergence) on a screen surface (screen). As one of the methods, there is a method using a deflection yoke of a self-convergence method. The deflection yoke of the self-convergence method
Generally, a pair of upper and lower saddle-type horizontal deflection coils and a pair of left and right saddle-type vertical deflection coils are used, and a mechanism for obtaining good convergence characteristics is provided.

The convergence characteristics and deflection distortion characteristics of a deflection yoke are greatly affected by the positions and distributions of electric wires of a horizontal deflection coil and a vertical deflection coil (hereinafter, generally referred to as deflection coils). Therefore, the deflection coil of the deflection yoke which is generally mass-produced divides the coil into a plurality of sections by regulating the position of the electric wire by a pin called a dividing pin when winding the electric wire forming the coil, and dividing the coil into a plurality of sections. Desired characteristics are obtained by adjusting the position and the number of windings.

[0004] With the recent increase in definition of display devices, stricter requirements have been imposed on convergence characteristics and deflection distortion characteristics of deflection yokes. In order to improve basic performance and design flexibility in response to this, the number of sections to be divided is increased so that the position and distribution (winding distribution) of electric wires (coils) can be set finely, and more accurate characteristics are achieved. It is required to obtain.

[0005]

However, in order to increase the number of divided sections in the deflection coil, it is necessary to reduce the interval between the divided sections. In order to reduce the distance between the divided sections, the distance between the divided pins must be reduced. The split pins are controlled in and out of the winding position by a pin drive unit provided on the winding form of the winding device. Therefore, in order to reduce the interval between the divided pins, the interval between the pin driving units must be reduced. As a matter of course, the interval between the pin driving units can be narrowed only within a range where the adjacent pin driving units do not interfere with each other, so that there is a limit in reducing the interval between the divided pins. That is, in a limited winding space, the interval and the number of divided pins are physically limited by the size of the pin driving unit attached to the winding form.

Therefore, in the conventional winding device and the winding method using the winding device, the required number and positions of the divided pins may not be realized, which hinders the performance improvement of the deflection coil. I have. As a result, there is a problem that a deflection yoke satisfying strict requirements for convergence characteristics and deflection distortion characteristics cannot be obtained.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a deflection coil capable of improving the degree of freedom in designing the winding distribution of a deflection coil and improving convergence characteristics and deflection distortion characteristics. And a winding method and a deflection yoke.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention comprises (a) a convex (51) and a concave (52). In a deflection coil winding device for forming a deflection coil (2) by winding an electric wire in a winding space between the winding wires, the deflection coil is inserted into the winding space when the electric wire is wound, and a winding distribution is regulated. a deflection coil plurality of sections _{(2C 1 ~2C 6, 2C 7} ~2
C ₁₂ ), wherein a plurality of split pins (50) for splitting adjacent three sections of at least a part of the plurality of sections are formed in the winding space from different directions. To provide a winding device of a deflection coil characterized by being configured to be inserted into the
(B) In a method of winding a deflection coil in which an electric wire is wound around a winding space between a convex shape (51) and a concave shape (52) to form a deflection coil (2), A plurality of split pins (50) are inserted into the winding space to regulate the winding distribution, and the deflection coil is connected to a plurality of sections (2C _1).
2C ₆ , 2C _{7 to} 2C ₁₂ ), and dividing pins for forming three adjacent sections in at least a part of the plurality of sections are alternately arranged in the winding space from different directions. (C) a deflection yoke attached to a neck portion of a color picture tube, wherein the neck portion side is a small-diameter portion (2A), and the color image receiving method is provided. In a deflection yoke provided with a deflection coil (2) having a large-diameter portion (2B) on the screen side of the tube and a side portion (2C) between the small-diameter portion and the large-diameter portion, the side surface portion is a plurality of sections by the position regulation by the plurality of split pins (50) in the winding process of the deflection coil _{(2C 1 ~2C 6, 2C 7} ~2C
₁₂ ), wherein at least a portion of at least a part of the plurality of sections is divided into three adjacent sections by division pins inserted alternately from different directions. Things.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a deflecting coil winding apparatus and method according to the present invention. FIG. 1 is a side view showing an embodiment of a deflection coil winding device of the present invention, FIG. 2 is an exploded perspective view showing an embodiment of a deflection coil winding device of the present invention, and FIG. FIG. 4 is a perspective view showing an example of a deflection coil formed by a coil winding device and a winding method. FIG. 4 is a plan view showing an example of a deflection coil formed by a deflection coil winding device and a winding method of the present invention. FIG. 5 is a perspective view showing one embodiment of the deflection yoke of the present invention.

First, a winding device and a winding method according to the present invention will be described with reference to FIGS. In this embodiment described below, a case where a horizontal deflection coil is formed by the winding device and the winding method of the present invention will be described. However, the present invention can also be used for a vertical deflection coil. Note that the present invention is characterized by a winding form in a winding device, and other parts are the same as the conventional one. Therefore, in FIGS. 1 and 2, only the winding form is illustrated, and other parts are illustrated. Is omitted.

In FIGS. 1 and 2, the winding form in the winding apparatus of the present invention comprises a convex form 51 and a concave form 52. Convex 5
1 and the concave mold 52 are combined and opposed to each other as shown in FIG. 1, a winding space is formed between the two, and an electric wire serving as a coil is sequentially wound in the winding space. Is formed. The horizontal deflection coil 2 includes a small-diameter flange (small-diameter portion) 2A, a large-diameter flange (large-diameter portion) 2B, a small-diameter flange 2A, and a large-diameter flange 2B.
And a side surface portion 2C connecting the two. A window 2D is formed at the center of the side surface 2C, and a pair of horizontal deflection coils 2 is formed.
The surface on which is abutted is a butted portion 2E (FIG. 2).
reference).

On the large diameter side (lower side in FIG. 1) of the convex mold 51, when winding the horizontal deflection coil 2, the winding distribution of the electric wire is determined, and a plurality of divisions for dividing the electric wire into a plurality of sections. pin 50 ₁ is provided. Split pins 50 ₁ each of which is driven by a respective drive unit 53. That is, in the winding step, each of the driving units 53 includes the convex mold 51 and the concave mold 5.
2 is selectively controlled in and out of the winding space (insertion / retraction). Further, even in a concave 52 to determine the winding distribution of the electric wire is provided with a plurality of split pins 50 ₂ for dividing into a plurality of sections. Each of the divided pins 50 ₂ is controlled by the respective drive unit 54 to selectively move in and out of the winding space (insertion / retraction).
In FIGS. 1 and 2, for simplicity, the split pins 50 ₁ and 50 ₂ and the driving units 53 and 54 are partially illustrated.

In the present embodiment, split pin 50 ₁ thereof out is controlled in the vertical direction substantially parallel to the direction of Figure 1 corresponding to the tube axis of the color picture tube (not shown), split pin 5
For example, O ₂ is controlled to enter and exit in a substantially normal direction of the side surface portion 2C. The divided pins 50 ₁ and 50 ₂ are collectively referred to as a divided pin 50. The present invention provides a plurality of split pins 50.
Is characterized in that at least a part of the at least three adjacent split pins 50 are alternately inserted and removed from different directions. In this embodiment, the divided pin 50 in and out from a direction different from that of the split pin 50 ₁
As a preferred embodiment of the present invention, the split pin 5 is provided inside the concave mold 52.
0 ₂ is provided.

As described above, the winding device of the present invention determines the winding distribution of the electric wire, and divides the side portion 2C of the horizontal deflection coil 2 into a plurality of sections.
, And the split pins 50 for forming three adjacent sections in at least a part of the plurality of sections are alternately inserted and removed from different directions. Further, according to the winding method of the present invention, when the winding distribution of the electric wire is determined by the plurality of division pins 50 and the side surface portion 2C is divided into the plurality of sections, the adjacent 3 in at least a part of the plurality of sections. Split pin 50 for forming one section
Are alternately taken in and out from different directions.

Therefore, according to the winding apparatus and the winding method of the present invention, since the pin driving section 53 and the pin driving section 54 are provided in different portions, the pin driving section 53 and the pin driving section 5 are provided.
It is not necessary to consider the interference with the pin 4, and the interval between the split pins 50 by the pin driving unit 53 and the split pin 50 by the pin driving unit 54 is reduced as long as the split pins 50 do not interfere with each other. It becomes possible. As a result, it is possible to increase the number of divided sections or to greatly reduce the interval between adjacent divided sections, and it is possible to greatly improve the degree of freedom in designing the winding distribution of the deflection coil.

The configuration of the horizontal deflection coil 2 obtained by the winding device and the winding method of the present invention will be further described with reference to FIGS. In FIG. 3, for the sake of simplicity, the illustration of the dividing pin 50 and the section divided by the dividing pin 50 in the rear side portion 2C is omitted. FIG. 4 is a plan view seen from the large-diameter flange 2B side.

As shown in FIGS. 3 and 4, one side 2
C (near side in FIG. 3, right side of FIG. 4), the split pin 50 ₁ provided on the convex 51 is split pin 50 _11, 50 _12, 50
₁₃ , 50 ₁₄ which are inserted from the tube axis direction. The split pin 50 ₂ provided on the concave mold 52 is
₂₁ consists of 50 _22, which are inserted from the normal direction of the side surface portion 2C. Also in the other side portion 2C (left side in FIG. 4), dividing pins 50 ₁ provided on the convex 51 is made of split pins 50 _15, 50 _16, 50 _17, 50 _18, it is inserted from the tube axis direction I have. The dividing pin 50 ₂ provided on the concave mold 52 is composed of dividing pins 50 ₂₃ and 50 ₂₄ , which are inserted from the normal direction of the side surface portion 2C.

The large-diameter flank of one of the side surfaces 2C
The part on the 2B side is divided pin 50₁₁, 50₁₂, 50₁₃,
50₁₄And 50_{twenty one}, 50_{twenty two}By multiple sections
2C ₁, 2C_Two, 2C_Three, 2C_Four, 2C_Five, 2C₆Divided into
ing. Part of the other side surface part 2C on the large diameter side flange 2B side
The minute is divided pin 50_Fifteen, 50₁₆, 50₁₇, 50₁₈And 5
0_{twenty three}, 50_{twenty four}Allows multiple sections 2C₇, 2
C₈, 2C₉, 2C_Ten, 2C₁₁, 2C₁₂Is divided into
You. Split pin 50₁₂~ 50₁₄Sexi divided by
2C_Two~ 2C₆Is divided pin 50₁₂~ 50₁₄Alternately
Inserted from different directions and divided
You. Also, the split pin 50₁₆~ 50₁₈Divided by
Section 2C₈~ 2C₁₂Is divided pin 50₁₆~ 50₁₈
Are inserted alternately from different directions and split
It is.

Therefore, in the horizontal deflection coil 2 of the present invention, it is possible to form more sections or narrower sections on the side face 2C in the range from the window 2D to the butt 2E. it can. As a result, in the deflection yoke equipped with the horizontal deflection coil 2 of the present invention, it is possible to obtain high-accuracy characteristics satisfying strict requirements for convergence characteristics and deflection distortion characteristics.

Further, an overall configuration example of the deflection yoke of the present invention will be described with reference to FIG. The configuration example shown in FIG. 5 includes a configuration that is not directly related to the present invention. The deflection yoke of the present invention is not limited to the one shown in FIG. In FIG. 5, this deflection yoke has a small-diameter portion on one side (upper side in the figure) and a large-diameter portion on the other side (lower side in the figure), for example, by a separator 1 in which a pair of semi-annular ones are combined. It has a funnel shape. The small diameter portion is on the neck side of the color picture tube, and the large diameter portion is on the screen side.

A pair of saddle-type horizontal deflection coils 2 and 2 are mounted on the inner surface of the separator 1, and a pair of saddle-type vertical deflection coils 3 and 3 are mounted on the outer surface.
Holds the horizontal deflection coils 2 and 2 and the vertical deflection coils 3 and 3 electrically insulated. A core 4 made of ferrite or the like is mounted on outer surfaces of the vertical deflection coils 3. The horizontal deflection coil 2 is formed by the above-described winding device and winding method of the present invention, and is configured as shown in FIGS. The vertical deflection coil 3 is similar to the horizontal deflection coil 2,
It may be formed by the above-described winding device and winding method of the present invention.

As described above, the horizontal deflection coil 2 has the small-diameter (neck-side) flange 2A (not shown here) and the large-diameter (screen-side) flange 2B. The small-diameter flange 2A is stored in a storage portion (not shown) provided on the small-diameter side of the separator 1, and the large-diameter flange 2B is stored in the large-diameter flange 1b. The vertical deflection coil 3 also includes a small-diameter flange (not shown) and a large-diameter flange 3B.

The deflection yoke having such a configuration usually requires a circuit for correcting the deflection characteristics. A substrate 5 having such a circuit mounted thereon is mounted on the side surface of the separator 1. On the small diameter side of the separator 1, a small diameter side flange 1a composed of a plurality of flanges 1a1, 1a2, 1a3 is provided. A four-pole correction coil 7 called a pair of 4P coils is fitted on the smallest diameter side flange 1a1 of the small diameter side flange 1a.

A claw 8 for mounting the substrate 5 on the separator 1 is provided on the largest diameter flange 1a3 by integral molding. A hole 5a is formed in the substrate 5, and a claw 8 provided on the flange 1a3 is engaged with the hole 5a. On the other hand, a pair of plate-shaped ribs 9 are provided on the large-diameter flange 1b by integral molding.
The substrate 5 is held with its lower end sandwiched between a pair of ribs 9. In this manner, the substrate 5 is attached to the side surface of the separator 1 by the claws 8 and the ribs 9 provided on the flange 1a3.

Further, a plurality of pins 10 as terminals for connecting lead wires are attached to the substrate 5.
These pins 10 are connected to the lead wires 2 of the horizontal deflection coil 2.
a, the lead wire 3a of the vertical deflection coil 3, and the lead wire 7a of the correction coil 7 are tangled. To supply a current to the deflection yoke, a connector wire 12 is connected to a connector 11 connected to a power supply, and a lead wire 12 a of the connector wire 12 is also wrapped around the pin 10 of the substrate 5.

The lead wires 2a, 3a,
A plurality of grooves 5b for passing 7a are formed near the pins 10. Lead wires 2a routed in the direction of the substrate 5,
3a and 7a are grooves 5b formed at the end of the substrate 5, respectively.
And soldered around the pins 10. The solder is not shown here. A substantially L-shaped rib 13 is provided on the flange 1a3 of the neck side flange 1a by integral molding, and the lead wire 2a of the horizontal deflection coil 2 is substantially U-shaped formed by the rib 13 and the flange 1a3. And is housed in the groove 5 b through the concave portion 14.

[0027]

As described in detail above, the winding device and the winding method of the deflection coil of the present invention regulate the winding distribution by inserting a split pin into the winding space when winding the electric wire, When the deflection coil is divided into a plurality of sections, division pins for forming three adjacent sections in at least a part of the plurality of sections are alternately inserted into the winding space from different directions. Therefore, the degree of freedom in designing the winding distribution of the deflection coil can be improved, and the convergence characteristics and deflection distortion characteristics can be improved. Further, in the deflection yoke of the present invention, the side surface of the deflection coil is divided into a plurality of sections by the position regulation by the plurality of division pins in the winding step, and at least a part of the plurality of sections is adjacent to each other.
Since one section is divided by the dividing pins alternately inserted from different directions, the number of sections can be increased, the interval between sections can be reduced, and convergence characteristics and deflection distortion characteristics can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a deflection coil winding device of the present invention.

FIG. 2 is an exploded perspective view showing one embodiment of a winding device for a deflection coil of the present invention.

FIG. 3 is a perspective view showing an example of a deflection coil formed by a winding device and a winding method of a deflection coil of the present invention.

FIG. 4 is a plan view showing an example of a deflection coil formed by a winding device and a winding method of a deflection coil according to the present invention.

FIG. 5 is a perspective view showing one embodiment of a deflection yoke of the present invention.

[Explanation of symbols]

2 horizontal deflection coils 2A small side flange (small diameter portion) 2B larger diameter flange (large diameter portion) 2C side portion 2D window 2E butt portion 2C ₁ ~2C ₁₂ Section 3 vertical deflection coils 50 _1, 50 _2, 50 ₁₁ - 50 ₁₈ , 50 ₂₁ to 50 ₂₄ split pins 51 convex 52 concave 53, 54 pin driving section

Claims (5)

[Claims] 1. A deflecting coil winding device having a convex shape and a concave shape, wherein a wire is wound in a winding space between the convex and concave shapes to form a deflection coil. A plurality of divided pins that are inserted into the winding space at the time of wire to regulate winding distribution and divide the deflection coil into a plurality of sections; and three adjacent sections in at least a part of the plurality of sections. A winding device for a deflection coil, characterized in that split pins for forming the winding are alternately inserted into the winding space from different directions. 2. A split pin inserted into the winding space from the first direction in the convex shape and a split pin inserted into the winding space from a second direction different from the first direction in the concave shape. The winding device for a deflection coil according to claim 1, wherein the winding device is provided. 3. A deflection coil winding method for forming a deflection coil by winding an electric wire in a winding space between a convex shape and a concave shape, wherein a plurality of divisions are made into the winding space when the electric wire is wound. A pin is inserted to regulate the winding distribution, the deflection coil is divided into a plurality of sections, and divided pins for forming three adjacent sections in at least a part of the plurality of sections, A winding method for a deflecting coil, wherein the coil is inserted into the winding space alternately from different directions. 4. A split pin provided in the convex shape is inserted into the winding space from a first direction, and the split pin provided in the concave shape is wound into the winding space from a second direction different from the first direction. 4. The method for winding a deflection coil according to claim 3, wherein the coil is inserted into a line space. 5. A deflection yoke mounted on a neck portion of a color picture tube, wherein the neck portion side has a small diameter portion, the screen side of the color picture tube has a large diameter portion, and the small diameter portion and the large diameter portion have a small diameter portion. A deflection yoke provided with a deflection coil having a side portion between the side portions, wherein the side portion is divided into a plurality of sections by position regulation by a plurality of division pins in a winding step of the deflection coil, and the plurality of sections 3. The deflection yoke of claim 3, wherein at least some of the three adjacent sections are divided by division pins inserted alternately from different directions.