JPH07220658A - Deflection yoke having fc coil - Google Patents

Abstract

PURPOSE:To provide a deflection yoke having FC coils by which erroneous wiring is not caused by simplifying wiring work of the FC coils. CONSTITUTION:A bobbin 12A having a flange, a bobbin 14 having no flange, and a bobbin 12C having a flange are embedded in this order in a shaft 9 of a coil winding machine, and are fixed to the shaft 9. When a coil 11 is wound round on bobbins 12A, 14 and 12C, the winding finish side of an upper side FC coil 10A and the winding start side of a left side FC coil 10C are continuously wound in a mutually connected condition through a coil connecting wire 15 of a trimmed winding part 13, and after the FC coil 10A and the FC coil 10C are formed, the bobbin 14 having no flange is removed. Lead-out wires of these FC coils become two pieces of a winding start wire 5A and a winding finish wire 5C. Thereby, wiring work of the FC coils is simplified, and erroneous wiring is prevented. The FC coils 10A and 10C are arranged on the neck end sides 6 of a deflection yoke.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke with an FC coil mounted on a television receiver, a display device or the like.

[0002]

2. Description of the Related Art In recent years, with the advent of high-definition television receivers and the appearance of high-definition display devices, the color shift of the screen of the cathode ray tube of these devices, that is, the standards such as convergence, have become increasingly strict. Along with this, increasingly precise control of the deflection magnetic field is desired.

FIG. 7 shows a deflection yoke with an FC coil mounted on a cathode ray tube of a television receiver or a display device. FIG. 4 shows the deflection yoke as viewed from the neck side. Shows the connection diagrams of the FC coils. In this type of deflection yoke, horizontal deflection coils (not shown) are mounted on the top side and the bottom side along the inner peripheral surface of the bobbin-shaped deflection bobbin 2, and on the outside of the deflection bobbin 2 a vertical deflection coil ( (Not shown) and a core (not shown) are attached.

In these figures, the deflection yoke 1 is mounted on a cathode ray tube 4, and the deflection bobbin 2 has a neck end side 6
A pair of FC coils (Field Control Coil) 10A, 10B and 10C, 10D are arranged to face each other at upper and lower and left and right positions, respectively. The lead wire 5 of these FC coils 10A to 10D is connected to a connection terminal 17A on the connection board (or circuit board) 3
~ 17E are connected to each other. Each of the FC coils 10A to 10B has a lead wire 5 on the winding start (S) side and a winding end (F) side, and a total of eight lead wires 5 for four FC coils. There is.

As shown in FIG. 5, these FC coils 10A to 10D are connected to a vertical deflection coil 7. For example, the lead wire 5 on the winding end (F) side of the upper FC coil 10A is a connection terminal. Connected to the vertical deflection coil 7 via 17A, the lead wire 5 on the winding start (S) side of the FC coil 10A and the lead wire 5 on the winding start (S) side of the FC coil 10B are connection terminals 17B, and the FC coil 10B. End of winding (F)
The lead wire 5 on the side and the lead wire 5 on the winding start (S) side of the FC coil 10C are connected by a connection terminal 17C.
Lead wire 5 and FC on the end (F) side of C coil 10C
The lead wire 5 on the winding end (F) side of the coil 10D is a connection terminal 17D, and the lead wire 5 on the winding start (S) side of the FC coil 10D is connected to the connection terminal 17E.
Is connected to the five connection terminals 17A, 17B, 17C, 17D and 17E in the above-mentioned configuration, and the FC coils 10A to 10D are connected in series with the vertical deflection coil. The FC coils 10A to 10D are attached to enhance the green sensitivity of the deflection yoke.

The deflection yoke is driven, and a current is passed through the FC coil to generate a magnetic field. When scanning the upper side of the television screen, for example, the green G beam shown in FIG. 6B is blue. In the case of a narrow misconvergence inward with respect to the B and red R beams, the direction of the generated magnetic field is set to the direction of the arrow as shown in FIG. So upwards,
On the lower side of the screen, the green G beam is moved downward to correct the deviation of the green sensitivity of the misconvergence in the narrow direction.

Further, the green G shown in FIG.
In the case of wide misconvergence in which the beam is shifted outward, the FC coil is connected so that the direction of the generated magnetic field is opposite to that in the case of FIG. 6 (a), and the direction of the magnetic field is reversed. The beam of green G is moved downward on the upper side of the screen and upward on the lower side of the screen to correct the green sensitivity of misconvergence in the wide direction.

[0008]

However, when connecting the lead wires 5 of the FC coil to the connecting terminals 17, the number of the lead wires 5 is as many as eight, and the connecting terminals 17A, 17B,
Since there are as many as 17C, 17D, and 17E, five lead wires 5 must be selected from each of the eight lead wires 5 and connected to the connection terminals 17A to 17E corresponding to the lead wires, respectively. However, there is a problem that the wiring work is complicated and complicated. Further, there is a problem that incorrect wiring is likely to occur due to complicated wiring work.

The present invention has been made to solve the above problems, and an object thereof is to provide a deflection yoke with an FC coil that simplifies the wiring work of the FC coil and is free from miswiring.

[0010]

In order to achieve the above object, the present invention is constructed as follows. That is, the first invention is a deflection yoke with an FC coil, in which a pair of FC coils are arranged to face each other at upper and lower or left and right positions on the neck end side of the deflection yoke, and the winding end of the one side FC coil of the pair of FC coils is completed. The winding start side of the side FC coil and the winding start side of the other side FC coil are characterized in that they are continuously wound by being connected to each other via a coil connecting wire in the extra length portion.

A second aspect of the present invention is a deflection yoke with an FC coil in which a pair of FC coils are arranged facing each other at upper and lower and left and right positions on the neck end side of the deflection yoke. Of the four FC coils, two or more FC coils are continuously wound on the winding end side of the one side FC coil and the winding start side of the other side FC coil by being connected to each other via the coil connecting wire of the extra length portion. It is characterized by being present.

[0012]

The pair of FC coils, which are arranged to face each other at the upper and lower or left and right positions on the neck end side of the deflection yoke, connect the winding end side of the one side FC coil and the winding start side of the other side FC coil with extra length coil connecting wires. Continuous winding connected to each other,
The lead line of the FC coil is limited to the winding start side of the one side FC coil and the winding end side of the other side FC coil, and the leading line of the FC coil is halved. By reducing the number of lead wires, wiring work of the FC coil is simplified and erroneous wiring is prevented.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In the description of the present embodiment, the same reference numerals will be given to the same names as those in the conventional example, and detailed description thereof will be omitted.

The deflection yoke with FC coil of the present embodiment is similar to the conventional example in that a pair of FC coils 10A, 10B and 10 are provided at the upper and lower and left and right positions on the neck end side 6 of the deflection bobbin 2, respectively.
C and 10D are arranged facing each other. FIG. 1 shows a winding mode of the FC coil used in the deflection yoke with the FC coil of this embodiment.

The FC coil used in the deflection yoke with the FC coil of this embodiment is composed of an upper FC coil 10A and a left F coil.
Four FC coils are arranged on the neck side of the deflection yoke, with one set of the C coil 10C and one set of the lower FC coil 10B and the right side FC coil 10D. In the figure, a bobbin 12A and 12C shown in FIG. 1 (b) is fitted into a shaft 9 of a winding machine via a bobbin without a collar 14, and these bobbins 12A, 14 and 12C are screwed into shafts. It is fixed at 9. The bobbins 12A and 12C with flanges are continuously wound with windings 11 via a bobbin 14 without a collar.
A C coil 10A and an FC coil 10C on the left side are formed. At the time of this winding work, the winding start side of the winding 11 is attached to the peripheral end side of the flange 16A of the bobbin 12A with a collar and a tape, an adhesive, or a pin. Temporarily fix it by winding the wire around the bobbin 12A.
Wind 11 times a predetermined number of times. Next, the winding 11 is wound around the outer circumference of the collarless bobbin 14 a predetermined number of times, the wire is temporarily fixed to the collar 16C in the same manner, the winding 11 is wound around the outer circumference of the collared bobbin 12C a predetermined number of times, and the wire on the winding end side is wound. After temporarily fixing it to the collar 16D in the same manner, remove the bobbins 12A, 14 and 12C from the shaft 9 and twist the collared bobbins 12A and 12C in the opposite direction to the winding direction.
Loosen the winding of the collarless bobbin 14 and remove the collarless bobbin 14. As a result, the FC coil 10A and the FC end
The winding start side of the coil 10C is continuously connected to the upper side FC coil 10A and the left side FC coil 10C which are connected to each other via the coil connecting wire 15 of the waste winding portion 13 wound around the collarless bobbin 14.
And are formed at once as a set of FC coils. This one
The lead wires of the pair of FC coils are the wire 5A on the winding start side of the FC coil 10A and the wire 5C on the winding end side of the FC coil 10C.
It will be two.

Similarly, a winding bobbin 12 having the same wire diameter as the above is provided with a collar bobbin 12 having the same shape and dimensions as the collar bobbins 12A and 12C.
B and 12D are continuously wound via a collarless bobbin 14 to form an FC coil having a lower FC coil 10B and a right FC coil 10D as one set, and two lead wires. As a result, the lead wire of the entire FC coils 10A to 10D is shown in FIG.
As shown in FIG. 5, there are four lines, 5A, 5C, 5B and 5D. Along with this, the number of connection terminals on the connection board (or circuit board) is 17A, 17C, and 17E shown in FIG.

According to the present embodiment, the upper end of the FC coil 10A, the left end of the FC coil 10C, the lower end of the FC coil 10B, and the right end of the FC coil 10D, which are attached to the deflection yoke, are wound to the end of the FC coil 10A, 10B. Since the winding start sides of the FC coils 10C and 10D on the other side and the other side are connected to each other through the coil connecting wire 15 of the waste winding portion 13 and continuously wound, the number of lead wires 5 of the FC coil is 8 Since it is possible to reduce the number from four to four and the number of connecting terminals from five to three, as many as five connecting terminals are provided with as many as eight lead lines 5 as in the past. Since it is possible to make the wiring work extremely complicated by reducing the number of lead wires and the number of connection terminals, it is possible to prevent erroneous wiring, from the complicated wiring work which requires complicated connection.

Further, in the above embodiment, since two FC coils can be manufactured as one set at a time, as in the conventional case, two FC coils can be manufactured.
Compared with the case where individual FC coils are produced separately, only one FC coil is required, which improves work efficiency.

The present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted. For example, in the above embodiment, the wire diameters of the coil windings of the upper and left FC coils 10A and 10C and the lower and right FC coils 10B and 10D are set to the same wire diameter. When the set of 10B and the set of left and right coils 10C and 10D are respectively set, the set of upper and lower coils 10A and 10B and the left and right coils 10C and 10D
In the above group, the wire diameters do not have to be the same and can be appropriately selected according to the specifications.

In the above embodiment, two FC coils are provided for each of the upper and left sides and one for the lower and right sides, respectively.
Although formed as a set, for example, three FC coils on the left side, the upper side, and the right side may be set as one set, and as shown in FIG.
The four FC coils 10A to 10D may be formed as a set. In this case, there are two lead wires, namely, a winding start wire 5A and a winding end wire 5D, and two connection terminals 17A and 17E, so that the wiring work can be further simplified.

Further, in the above embodiment, a total of four FC coils 10A to 10D are provided on the upper and left sides and on the lower and right sides, respectively, on the neck end side of the deflection yoke.
Only the C coils 10A and 10B may be provided, or
Only a pair of left and right FC coils 10C and 10D may be provided, and the combination thereof can be appropriately selected.

Furthermore, in the above embodiment, the winding 11 of the waste winding portion 13 as the extra length portion is wound around the outer circumference of the collarless bobbin 14 to form the coil connecting wire 15. For example, this coil connecting wire 15 The bobbin 14 may be straightened from the collar 16B to the collar 16C without winding the bobbin 14. In this case, the length of the collarless bobbin 14 needs to be appropriately increased according to the specifications.

[0023]

According to the present invention, the winding end side of one side FC coil and the winding start side of the other side FC coil of the pair of FC coils at the upper and lower or left and right positions on the neck end side of the deflection yoke are the coils of the extra length portion. Since it is configured to be continuously wound by being connected to each other via a connecting wire, it is possible to reduce the number of lead wires of the FC coil and the number of connecting terminals as compared with the conventional method. As shown in the figure, it is not necessary to select a large number of lead wires and connect them to the connection terminals, and from complicated wiring work, you can reduce the number of lead wires and the number of connection terminals to make wiring extremely simple. Therefore, miswiring can be prevented.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a winding mode of an FC coil used in a deflection yoke with an FC coil according to the present embodiment.

FIG. 2 is an explanatory diagram of a winding mode of an FC coil having another configuration used in the deflection yoke with the FC coil according to the present embodiment.

FIG. 3 is a connection diagram of an FC coil and a vertical deflection coil used in the deflection yoke with the FC coil according to the present embodiment.

FIG. 4 is an explanatory diagram of an arrangement state of FC coils when the deflection yoke is viewed from the neck side.

FIG. 5 is a connection diagram of a vertical deflection coil and an FC coil.

FIG. 6 is an explanatory diagram showing a direction of a magnetic field generated by an FC coil and an adjustment state of green sensitivity.

FIG. 7 is an explanatory diagram of a general deflection yoke with an FC coil.

[Explanation of symbols]

 1 Deflection yoke 2 Deflection bobbin 5 Lead wire 6 Neck end side 10A to 10D FC coil 12A to 12D Bobbin with collar 13 Extra length (discarded winding portion) 14 Collarless bobbin 15 Coil connection wire 17A to 17E Connection terminal

Claims (2)

[Claims] 1. A deflection yoke with an FC coil in which a pair of FC coils are arranged facing each other at upper and lower or left and right positions on the neck end side of the deflection yoke, wherein one side of the pair of FC coils is the winding end side and the other is the other side. A deflection yoke with an FC coil, wherein the winding start side of the side FC coil is continuously wound by being connected to each other via a coil connecting wire of an extra length portion. 2. A deflection yoke with an FC coil, in which a pair of FC coils are arranged to face each other at upper and lower and left and right positions on the neck end side of the deflection yoke, wherein a total of four FC coils of each of the upper, lower, left and right pairs are provided. Of which, two or more F
C coil is the winding end side of one side FC coil and the other side F
The C coil is continuously wound on the winding start side by being connected to each other through an extra length coil connecting wire.
Deflection yoke with C coil.