JPH09237591A - Deflection yoke device - Google Patents

Abstract

It is an object of the present invention to improve winding stability by eliminating winding slip of a vertical deflection coil. A pair of funnel-shaped cores 1, a vertical deflection coil 4 wound around each core 1, and a pair of horizontal deflection coils formed in a saddle shape are provided. A first coil 12 wound along a line where the plane including the central axis 8 of the core 1 and the core 1 intersect,
The first coil 1 is connected to the first coil 12 and
The wound circumference of 2 is further first from the abutting surface 7 side.
2 has a second coil 13 wound so as to intersect with the coil 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke device combined with a cathode ray tube used in a television receiver or the like.

[0002]

2. Description of the Related Art In recent years, cathode ray tubes have been widely used in information equipment terminals such as computers, high-definition televisions, and the like.
Then, the color cathode ray tube will be explained. Red, green,
After the three electron beams emitted from the cathode for each color of blue pass through the first to fifth grids, they are deflected in the horizontal and vertical directions by the deflection yoke device and reach the phosphor screen through the shadow mask. Is configured.

In the color cathode ray tube screen, the shape of the tube surface is becoming flat due to the demand for more naturalness. When the tube surface shape is flattened in this manner, raster distortion of vertical and horizontal lines on the screen increases. Then, by increasing the pincushion magnetic field of the horizontal deflection coil of the deflection yoke device, it is possible to prevent the raster distortion of the horizontal line from increasing. However, the raster distortion of the vertical line cannot be prevented from being increased because the vertical deflection coil is a barrel magnetic field, and the circuit is corrected. And
Since the power consumption increases due to the circuit correction, a deflection yoke device that prevents the power consumption from increasing is being used.

Hereinafter, such a conventional deflection yoke device will be described with reference to the drawings. FIG. 3 shows a semi-cut side view of a conventional deflection yoke device. In FIG. 3, reference numeral 1 denotes a pair of funnel-shaped cores, and the opening side (tube surface side) 2 has a trumpet shape that is larger than the neck side 3. Reference numeral 4 is a vertical deflection coil in which a conductive wire is wound around each core 1, 5 is a pair of horizontal deflection coils wound in a saddle shape, and 6 is insulation for insulating between the vertical deflection coil 4 and the horizontal deflection coil 5. It is a frame.

The winding of the vertical deflection coil 4 of the conventional deflection yoke device configured as described above will be described. FIG. 4 is a front view showing winding of a vertical deflection coil around a core of a conventional deflection yoke device. In FIG. 4, 7 is a core 1 divided into two
Abutting surfaces for abutting against each other, 8 is a central axis of the core 1, and 9
Is a vertical axis on the central axis 8 and orthogonal to the abutting surface 7. Then, as shown in FIG. 4, when the vertical deflection coil 4 is wound around the core 1, the winding position of the electric wire wound from the neck side 3 toward the opening side 2 is the butt face on the neck side 3. 7 directions, and on the opening side 2 is close to the vertical axis 9 direction. Therefore, instead of winding the electric wire along the periphery of the cross-section where the core 1 intersects the plane including the central axis 8 of the core 1, the crossing angle of the neck side 3 from the butt face 7 side is increased. While being wound around the core 1. Then, it is wound symmetrically with respect to the vertical axis 9.

The operation of the conventional deflection yoke device thus configured will be described. A sawtooth wave current is applied to each of the vertical deflection coil 4 and the horizontal deflection coil 5, and the deflection magnetic field generated by the current deflects the electron beam.

[0007]

In this deflection yoke device, the winding position of the wire of the vertical deflection coil 4 is such that the wire is wound along a line where the plane including the central axis 8 of the core 1 and the core 1 intersect. Since the coil is wound around the core 1 while increasing the angle of intersection with the plane facing the radial direction from the abutting surface 7 side of the neck side 3 instead of turning, the coil wound on the opening side 2 is There was a problem that the coil slipped in the direction of arrow 10 and the coil wound on the neck side 3 slipped in the direction of arrow 11 and the winding became unstable.

It is an object of the present invention to eliminate winding slippage of a vertical deflection coil and improve winding stability.

[0009]

To solve this problem, the present invention provides a vertical deflection coil in which a first coil is wound along a plane intersecting a plane including the central axis of the core and the core. The second coil is connected to the first coil and further has a second coil wound around the wound periphery of the first coil so as to intersect the first coil from the abutting surface side.

According to the present invention, it is possible to obtain the deflection yoke device in which the winding stability of the vertical deflection coil is eliminated and the winding stability is improved.

[0011]

The invention according to claim 1 of the present invention is a pair of funnel-shaped cores, a vertical deflection coil wound around each of the cores, and a pair of saddle-shaped contours. A horizontal deflection coil is provided, and the vertical deflection coil is a first coil wound along a line intersecting the plane including the center axis of the core and the core, and the first coil connected to the first coil and the first coil. And a second coil wound around the wound periphery of the vertical coil so as to intersect with the first coil from the abutting surface side. Has the effect of improving the stability of.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
2 and FIG. (Embodiment) FIG. 1 is a front view showing a vertical deflection coil of a deflection yoke device according to an embodiment of the present invention. FIG.
In the above, the same reference numerals as in the conventional example are basically the same. In FIG. 1, 1 is a pair of cores having a funnel shape, 2 is an opening side, 3 is a neck side, 4 is a vertical deflection coil, and a line intersecting a plane including a central axis 8 described below with the core 1. The first coil 12 wound along the first coil 12 and the first coil 12 connected to the first coil 12 and
It further has a second coil 13 wound around the wound periphery of the first coil 12 so as to intersect the first coil 12 from the side of the abutting surface 7. Reference numeral 7 denotes an abutting surface for abutting the core 1 divided into two parts, 8 denotes a central axis of the core 1, and 9 denotes a central axis 8 which is a vertical axis orthogonal to the abutting surface 7.

The formation of such a vertical deflection coil 4 will be described. FIG. 2A is a diagram for explaining winding of the first coil of the vertical deflection coil of the deflection yoke device according to the embodiment of the present invention, and FIG. 2B is a deflection yoke according to the embodiment of the present invention. FIG. 2 (c) is a view for explaining the winding of the second coil of the vertical deflection coil of the apparatus, and FIG. 2 (c) shows the first coil of the vertical deflection coil of the deflection yoke apparatus according to the embodiment of the present invention, and It is a figure explaining the winding which partially overlapped. In FIG. 2A, the first coil 12 is wound around the core 1 divided into two along the periphery of the cross section where the plane including the central axis 8 of the core 1 and the core 1 intersect. First, the first winding of the electric wire is performed around the core 1 from the neck side 3 on the one butting surface 7 side toward the opening side 2 on a plane including the central axis 8. At that time, when the first winding is over, the second winding is performed on the plane advanced by one pitch.
When the electric wire is rewound from the opening side 2 toward the neck side 3, it is slightly inclined with respect to the central axis 8. By repeating such winding, the first coil 12 is formed by sequentially winding in the direction of the vertical axis 9 side.

In the present invention, the term "winding" along the circumference of the cross section where the plane including the central axis 8 of the core 1 and the core 1 intersect includes a slight deviation due to the pitch.

It should be noted that first from the neck side 3 toward the opening side 2
However, the first coil 12 may be wound from the opening side 2 toward the neck side 3. Further, even if it is wound from the vertical shaft 9 side toward the abutting surface 7 side, it does not change at all.

Next, in FIG. 2 (b), the first coil 12 is connected to the first coil 12 and the wound circumference of the first coil 12 is further extended from the abutment surface 7 side.
The second coil 13 is wound so as to intersect with 2. At this time, the end portion of the second coil 13 on the neck side 3 is the first coil 12
Exists between the end of the first coil 12 and the abutting surface 7 without overlapping with the end of the first coil 12.

Even when the second coil 13 is wound in this manner, the first coil 12 is wound between the opening side 2 and the neck side 3 on a plane including the central axis 8, The second coil 13 does not slip in the direction of the arrow 10 or the arrow 11, and the winding stability of the vertical deflection coil 4 is sufficiently maintained. The first coil 12 and the second coil 13 thus formed are formed symmetrically with respect to the vertical axis 9 of the core 1.

Further, in FIG. 2B, the butting surface 7 is provided around the first coil 12 in which the winding of the vertical deflection coil 4 is wound on the core 1 along a plane including the central axis 8. The second coil 13 was formed by intersecting the first coil 12 from the side, but as shown in FIG. 2C, with respect to a part of the first coil 12 on the abutting surface 7 side of the neck side 3, Second
The ends of the coils 13 can be overlapped and wound on the opening side 2 at a position between the first coil 12 and the vertical axis 9. Then, in this way, the vertical deflection coil 4
Even when the second coil 13 is wound so as to overlap a part of the first coil 12 on the abutting surface 7 side of the neck side 3, the coils do not slip and the winding stability is improved. It is a thing.

In the embodiment of the present invention, the second coil 13 is wound around the first coil 12 from the abutting surface 7 side so as to intersect the first coil 12 and be wound. There is no slippage of the second coil 13 and the vertical deflection coil 4
The stability of winding can be improved.

Although the horizontal deflection coil and the insulating frame are not described in the embodiment of the present invention, they are included as the deflection yoke device.

[0021]

As described above, according to the present invention, the first coil is wound around the first coil wound along the line intersecting the plane including the central axis of the core and the core from the abutting surface side. Since the second coil is wound while intersecting with the second coil, there is no slippage of the second coil, and it is possible to improve the winding stability of the vertical deflection coil.

[Brief description of drawings]

FIG. 1 is a front view showing a vertical deflection coil of a deflection yoke device according to an embodiment of the present invention.

FIG. 2A is a diagram for explaining winding of the first coil of the vertical deflection coil of the deflection yoke device according to the embodiment of the present invention. FIG. 2B is a vertical diagram of the deflection yoke device according to the embodiment of the present invention. FIG. 3C is a view for explaining the winding of the second coil of the deflection coil. (C) A winding in which a part of the second coil is overlapped with the first coil of the vertical deflection coil of the deflection yoke device according to the embodiment of the present invention. Illustration to explain

FIG. 3 is a half-cut side view of a conventional deflection yoke device.

FIG. 4 is a front view showing winding of a vertical deflection coil around a core of a conventional deflection yoke device.

[Explanation of symbols]

 1 Core 2 Open Side 3 Neck Side 4 Vertical Deflection Coil 7 Butt Face 8 Center Axis 9 Vertical Axis 10, 11 Arrow 12 First Coil 13 Second Coil

Claims (1)

[Claims] 1. A pair of funnel-shaped cores, a vertical deflection coil wound around each of the cores, and a pair of horizontal deflection coils formed in a saddle-shaped contour shape. A first coil wound along a line intersecting the plane including the central axis of the core and the core, and a periphery of the first coil that is connected to the first coil and is wound around the first coil. A deflection yoke device having a second coil wound so as to intersect with the first coil from the butt face side.