JPH09245675A - Deflection yoke device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deflection yoke device which can make effective use of a space inside a wire guide groove by preventing wire from being hooked when wound, and decreasing a gap that forms in the wire guide groove. SOLUTION: This device has, in a grooved wire guide made of a nonmagnetic substance mounted on at least either the top or bottom side of an approximately cone-shaped core 5, a toroidal deflection coil formed by direct winding of wire; the wire guide has a core outside surface part 10 and a grooved structure having wire guide walls 8 continuously extended over the top or bottom side, and on the core outside surface part 10, at least some of the wire guide walls 8 are not perpendicular to the top or bottom side of the core but extend in a direction that almost coincides with the direction in which the wire is coiled.

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 A deflection coil has a non-radial winding distribution in order to reduce astigmatism in a cathode ray tube and improve raster distortion characteristics. In order to make a non-radial winding, an electric wire guide for electric wire winding is attached to the open end of the core, and an electric wire is wound around the core with the electric wire guide in a toroidal shape.

A deflection yoke device having such a deflection coil is disclosed in Japanese Patent Publication No. 7-66753. A half side view of the conventional deflection yoke device is shown in FIG. 1 in the figure is a horizontal deflection coil mounted on the base frame (in this case, it is formed in a saddle type instead of a toroidal type),
Reference numeral 5 denotes a core which is arranged on the outer peripheral portion of the horizontal deflection coil 1 and is formed in a substantially conical shape with a non-magnetic wire guide, 2 is an upper side portion of the wire guide located above the core 5, and 3 is a lower portion of the core. Lower part of the electric wire guide located, 4 is an electric wire wound in a toroidal shape, 6 is the top surface of the core 5, 7 is the bottom surface of the core 5, and 8 is
Is a wire guide wall in the wire guide.

FIG. 7 shows a state in which the electric wire 4 is wound in a state of 2
FIG. 6 is a side view of the core 5 in which the core 5 is attached to which a non-magnetic wire guide for stably winding the wire 4 is attached in a divided state. As shown in this figure, the electric wire guide lower side portion 3 attached to the bottom surface 7 of the core 5 includes an electric wire guide wall 8 extending over the bottom surface 7 of the core 5 and the outer side surface portion. Further, a rectangular protrusion wall 11 is arranged at the tip of the lower side portion 3 of the wire guide. The protruding wall 11 is formed so as to extend in a direction perpendicular to the bottom surface 7 of the core 5.

A method of winding the electric wire 4 around the two-divided core 5 thus constructed will be described with reference to FIG.
FIG. 8A is a sectional view of the core 5 to which the electric wire guide is attached in the conventional deflection yoke device. In this figure,
The core 5 is constituted by being surrounded by an inner side surface portion 9, an outer side surface portion 10, a top surface 6 and a bottom surface 7. As shown in FIG. 8B, the electric wire 4 includes an inner side surface portion 9, an outer side surface portion 10 and a top surface 6 of the core 5.
Around the bottom and bottom surface 7
And a base point B provided on the upper side portion 2 of the electric wire guide is wound in a substantially arc shape indicated by a locus 12 with the center of the guide as a guide.

FIG. 9 is an explanatory view of a winding direction of a conventional electric wire. As shown in this figure, in the winding direction of the electric wire, all the windings are not radial, that is, they are not oriented toward the center of the core 5, and in this figure, they are displaced in the x-axis direction.
It is wound around. That is, when the coil wound in this way is viewed from the side, as shown in FIG.
The electric wire 4 is wound at an angle in each electric wire groove.

[0007]

In the deflection yoke device having the above structure, the projection wall 11 provided on the lower side portion 3 of the wire guide is provided at a right angle to the bottom surface 7 of the core 5. On the other hand, the electric wire 4 is not wound at right angles to the electric wire guide wall due to the winding distribution. Therefore, at the time of winding, the electric wire 4 is caught in the protruding wall 11 of the lower side portion 3 of the electric wire guide (FIG. 10A portion), and in order to avoid the electric wire 4 being caught in such a protruding wall 11, the electric wire 4 in the electric wire guide groove is prevented. Since the winding is concentrated on a part of the wire, a large void (FIG. 10B) is formed in the wire guide groove. Due to the influence of this void, the winding portion of the electric wire 4 required by one deflection coil is constant, so a larger core is required to secure the required area for winding the electric wire 4,
This requires a larger deflection yoke arrangement.

In consideration of the above-mentioned conventional problems, the present invention prevents the electric wire from being caught at the time of winding, reduces the void portion formed in the electric wire guide groove, and can effectively use the space in the electric wire guide groove. The purpose is to provide.

[0009]

In order to achieve the above-mentioned object, the present invention is a deflection yoke device comprising a horizontal deflection coil and a vertical deflection coil, wherein at least one coil is an upper side portion of a substantially conical core. An electric wire that is formed in a toroidal shape by directly winding an electric wire around a grooved electric wire guide made of a non-magnetic material that is attached to at least one of the lower sides, and the electric wire guide continuously extends over the outer side surface of the core and the upper side or the lower side of the core. The electric wire guide wall has a groove structure having a guide wall, and the electric wire guide wall does not form a right angle with the top surface of the core or the bottom surface of the core, but is inclined in a direction matching the winding distribution of the electric wire.

According to the present invention, the electric wire can be prevented from being caught on the electric wire guide wall of the electric wire guide, the void portion formed in the electric wire guide groove can be reduced, the electric wire can be stably wound, and the inside of the electric wire guide groove can be effectively used. It can be used for.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises a horizontal deflection coil and a vertical deflection coil, and at least one coil has at least an upper side portion and a lower side portion of a core formed in a substantially conical shape. A toroidal type deflection coil in which an electric wire is directly wound around a grooved electric wire guide made of a non-magnetic material attached to one side, wherein the electric wire guide has an electric wire guide wall that continuously straddles the outer side surface of the core and the upper side or the lower side. In the outer side surface of the core, at least a part of the electric wire guide wall faces in a direction substantially coincident with the winding direction of the electric wire, not in a relationship perpendicular to the upper side or the lower side of the core. The present invention provides a deflection yoke device characterized in that when winding an electric wire for forming a coil, the electric wire is prevented from being caught on the electric wire guide wall of the electric wire guide, and is stable. You can line, and has the effect of reducing the gap that can be wire guide groove.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. In the embodiments of the present invention, the same components as those described in the above-mentioned conventional example are designated by the same reference numerals, and the description thereof will be omitted.

(First Embodiment) FIG. 1 is a side view of a core to which a wire guide is attached in a deflection yoke device according to a first embodiment of the present invention.

As shown in the drawing, a non-magnetic wire guide is attached to the top surface 6 and the bottom surface 7 of the core 5, and a plurality of wire guide walls 8 are provided on the wire guide upper side portion 2 and the wire guide lower side portion 3. Is provided, and the electric wire groove 14 is formed between the electric wire guide walls 8.

FIG. 2 is an enlarged cross-sectional view of the bottom surface of the core to which the wire guide is attached in the deflection yoke device according to the first embodiment of the present invention. As shown in this figure, the electric wire guide wall 8 in the electric wire guide is continuously formed so as to straddle the outer side surface of the core and the lower side of the core, and has a protruding wall 11 along the outer side surface of the core. This protruding wall 11 is substantially above the bottom surface 7 of the core 5, and the electric wire guide is arranged so that
In this figure, 80 degrees, 87 degrees, 65 degrees, 5 from the left side
It is tilted at an angle of 5 degrees. This tilt is determined by the tilt of the toroidally wound wire and is typically in the range of 10 to 60 degrees. The core 5 has a uniform angle of 90 degrees below the bottom surface 7.

A method for winding the electric wire 4 around the core 5 having the electric wire guide on which the electric wire guide wall 8 is thus arranged will be described below.

The electric wires 4 arranged in each electric wire guide are determined by the required coil distribution, and the coil distribution is determined from the specific electric wire groove of the upper side 2 of the electric wire guide provided on the top surface 6 of the core 5. The electric wire 4 is wound around the specific electric wire groove of the electric wire guide lower side portion 3 provided on the bottom surface 7 of the electric wire 5.
That is, as shown by the arrow in FIG. 3, the wire is routed from the specific groove of the wire guide upper side portion 2 to the specific groove of the wire guide lower side portion 3. The direction and positional relationship of the arrow are determined by the distribution of the coils.

In order to explain this state in more detail, the main part of the bottom surface of the core 5 will be described with reference to FIG. That is, in this figure, the electric wire 4 is the protruding wall 1 of the electric wire guide wall 8.
It can be seen that when 1 is inclined obliquely above the bottom surface 7 of the core 5, it is wound in the same direction. In other words, the direction of the electric wire 4 is 80 degrees, 87 degrees, 6 degrees from the left side.
It has an inclination of 5 degrees and 55 degrees.

FIG. 5 shows the winding state of the electric wire 4 after being wound in this way. As shown in this figure, even after the electric wire 4 is wound, the protruding wall 11 of the electric wire guide wall 8 is aligned with the winding direction of the electric wire 4.

[0020]

As is apparent from the above description, according to the present invention, the direction of the electric wire wound in a toroidal shape and the angle of the electric wire guide wall of the electric wire guide for controlling the electric wire are the same. Also, it reduces the risk of turbulence when winding the wire, that is, spillage from the wire guide wall of the wire guide and the possibility that the wire will get caught in the wire guide wall and cause winding failure, and fill the wire groove. The advantageous effect that the electric wire can be wound is obtained.

[Brief description of drawings]

FIG. 1 is a side view of a core to which a wire guide is attached in a deflection yoke device according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the bottom surface of the core to which the wire guide is attached.

FIG. 3 is an explanatory view of a method of winding the core electric wire to which the electric wire guide is attached.

FIG. 4 is a partial cross-sectional view of the bottom surface of the core for explaining the winding method of the electric wire.

FIG. 5 is a side view of the toroidal coil after winding the electric wire.

FIG. 6 is a half-cut side view of a conventional deflection yoke device.

FIG. 7 is a side view of a core provided with an electric wire guide in the deflection yoke device.

FIG. 8 is an explanatory view of winding an electric wire around a core provided with an electric wire guide in the deflection yoke device.

FIG. 9 is an explanatory view of the winding direction of the electric wire.

FIG. 10 is a partial view of a lower side portion of the electric wire guide as viewed from the front of FIG.

[Explanation of symbols]

 1 Horizontal deflection coil 2 Electric wire guide upper side part 3 Electric wire guide lower side part 4 Electric wire 5 Core 6 Top surface 7 Bottom surface 8 Electric wire guide wall 9 Inner side surface part 10 Outer side surface part 11 Projection wall

Claims (1)

[Claims] 1. A horizontal deflection coil and a vertical deflection coil are provided,
At least one of the coils is a toroidal deflection coil formed by directly winding an electric wire around a grooved electric wire guide made of a non-magnetic material attached to at least one of the upper side and the lower side of the core formed into a substantially conical shape, The electric wire guide has a groove structure having an electric wire guide wall that continuously extends over the outer side surface of the core and an upper side or a lower side, and at least a part of the electric wire guide wall in the outer side surface of the core has an upper side or a lower side of the core. A deflection yoke device characterized in that the deflection yoke device is oriented in a direction substantially coinciding with a winding direction of the electric wire, not in a relationship perpendicular to the portion.