JP2000067780A - Deflection yoke device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deflection yoke device allowing wire winding without paying attention to an adjoining hook-shaped protrusion in the case of inserting of a wire to a hook-shaped protrusion connected to a wire guide wall, that is, without reducing a winding speed at that part or temporarily stopping a coil winding machine, and further, without catching of a partially coming-loose stranded wire on the adjoining hook-shaped protrusion in the case of forming a thin stranded wire. SOLUTION: A coil bobbin has a wire catching part comprising a face A nearly parallel to a cathode-ray tube screen and a face B of a wire guide wall continuing from the face A in a bent state, while the coil bobbin is formed in a funnel-like bent shape for forming a coil in a required shape. In a deflection yoke device wherein a wire 9 is wound around this coil bobbin, the wire catching part includes a face C having an average angle of an angle of the face A and an angle of the face B.

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 which is mainly provided with three electron guns and is combined with a cathode ray tube.

[0002]

2. Description of the Related Art First, a conventional deflection yoke device will be described. FIG. 11 is a half side view of a deflection yoke device combined with a conventional cathode ray tube, FIG. 12 is a front view of the slot type deflection coil, and FIG. 13 is a perspective view of a hook-shaped protrusion at the tube surface side widening end. 14, FIG. 14 is a perspective view of a hook-shaped projection at the opening end of the electron gun side, FIG. 15 is a view for explaining how to start winding the electric wire from the opening end of the electron gun side, and FIG. It is a figure explaining a mode that it winds.

FIG. 11 is an external view of an upper half and a cross-sectional view of a lower half. Here, 1 is an electron gun, 2 is a cathode ray tube surface, 3 is a cathode ray tube axis, 4 is a horizontal axis, 5 is a vertical axis, 6 is a horizontal deflection coil, 7 is a vertical deflection coil, 8 is a core, and 10 is a wedge. , 11
Is the tube surface side of the deflection yoke device, and 12 is the electron gun side of the deflection yoke device.

[0004] As a method of combining the deflection yoke device with the cathode ray tube, first, a vertical deflection coil 7 in which an electric wire is wound around a core 8 in a toroidal shape outside the horizontal deflection coil 6 is manufactured to produce a deflection yoke device. The wedge 10 is inserted from the electron gun 1 side, and the wedge 10 is inserted into the gap between the deflection yoke device and the cathode ray tube.
Is adjusted so as to be substantially parallel to the cathode ray tube surface 2, that is, parallel to the plane defined by the horizontal axis 4 and the vertical axis 5. That is, the means for fixing the deflection yoke device and the cathode ray tube largely depends on wedge insertion.

In order to manufacture such a deflection yoke device, for example, as shown in FIG. 12, a winding frame formed by bending in a bosh shape to form a coil in a desired predetermined shape is used. There is a so-called slot type deflection coil in which an electric wire is wound. Here, 13 is an electric wire guide wall.

The slot-type deflection coil is provided with wire hooks formed by hook-shaped protrusions at the tube-side wide end 14 and the electron gun-side open end 15 of the deflection coil for winding the wire. ing.

As shown in FIG. 13, the hook-shaped protrusion of the hook has a curved surface extending from the electron gun side of the deflection coil and having the same shape as the outer diameter of the cathode ray tube, as shown in FIG. A surface on which the electric wire guide wall 13 is substantially parallel to the cathode ray tube surface 2;
A portion bent from the wire guide wall to form a so-called widened portion bend-up shape. That is, reference numeral 16 denotes a hand-shaped projection of the hook on the tube surface side.

As shown in FIG. 14, the hook-shaped projection at the opening end on the electron gun side extends from the tube surface side of the deflection coil, has the same outer diameter as the cathode ray tube, and inserts a deflection yoke device. Wire guide wall 13 formed with a gap for
However, it is a portion which is bent from the wire guide wall in order to form a surface substantially parallel to the cathode ray tube surface 2, that is, a so-called electron gun bend-up shape. That is, reference numeral 17 denotes a hand-shaped projection of the electron gun side hook. In this case, since the outside diameter of the cathode ray tube is cylindrical, the hand-shaped projection 17 of the hook on the electron gun side is formed at a right angle.

Hereinafter, a method of winding an electric wire around such a slot type deflection coil will be described. In FIG. 15, first, the electric wire 9 is hooked on the hand-shaped projection 17 of the hook on the electron gun side from the opening end on the electron gun side, and the hand-shaped projection 1 of the adjacent hook is hooked.
7 so that the wires do not catch on the wire guide wall 1
It is introduced downward along the direction of the white arrow along 3. Then, the wire is guided as it is along the wire guide wall 13 to the tube surface side wide end shown in FIG. 16 and makes a half turn at the tube surface wide end, and this time the wire is introduced upward. This operation is repeated a predetermined number of times to obtain a horizontal deflection coil.

[0010]

However, in the deflection yoke device configured as described above, the shape of the wedge, which is a means for fixing the deflection yoke device to the cathode ray tube, is different from that of the horizontal deflection coil of the deflection yoke device and the cathode ray tube. The gap does not match, and the fixing force of the wedge is weak relative to the force of inserting the wedge into the gap, and in some cases, the fixing force of the inserted wedge is weak, for example, in the environment where the cathode ray tube is used. The wedge moves due to a change or the like, or in the worst case, falls off, and the deflection yoke device moves. As a result, mislanding or the like occurs on the cathode ray tube screen, and the quality of the cathode ray tube screen has been significantly deteriorated.

As for the method of winding the electric wire around the winding frame, the electric wire is inserted into the target electric wire guide wall as described above.
Since the wire must be hooked on the hook-shaped protrusion connected to the target wire guide wall, for example, the winding speed is reduced only at the hook-shaped protrusion, or the temporary winding machine is stopped. And I had achieved my purpose.

In the case where a cathode ray tube device is used as a display terminal in recent years, this electric wire has a large number of thin wires (for example, 0.15φ) (for example, 0.15φ) in order to prevent heat generation during high-frequency scanning.
64) stranded wire, and in such a specification, in a place where the wire is bent and wound, the stranded wire is unwound, and a part of the wire is often attached to the hook-shaped protrusion. It was caught, and the wire was broken.

The present invention has been made in view of such a problem, and when an electric wire is inserted into a hook-shaped protrusion connected to an electric wire guide wall, attention is paid without paying attention to the adjacent hand-shaped protrusion of the hook, that is, However, even if the winding speed at that part is reduced or the winding machine is temporarily stopped, and even if the wire is made into a fine stranded wire, a part of the stranded wire is unraveled and the adjacent hook It is an object of the present invention to provide a deflection yoke device provided with a winding frame capable of winding without being caught on a projection.

[0014]

In order to achieve the above object, the present invention provides a cathode ray tube tube-side open end and an electron gun-side open end.
At the end, there is an electric wire hooking portion composed of an A surface substantially parallel to the cathode ray tube surface and a B surface of an electric wire guide wall formed by being bent and connected to the A surface to form a coil in a predetermined shape as a target. A deflection yoke device formed by winding an electric wire around a bobbin frame formed by bending in a bosh shape, wherein the shape of the electric wire hooking portion is such that an angle formed by the A surface and the B surface is A C-plane having an angle that divides the angle between the A-plane and the B-plane into two equal parts is disposed in the middle of the A-plane and the B-plane.

With this configuration, when inserting an electric wire into the hook-shaped protrusion connected to the electric wire guide wall, pay attention to the hand-shaped protrusion of the adjacent hook, that is, reduce the winding speed at that portion. The winding can be wound without stopping the winding machine temporarily, and even if the wire is made into a fine stranded wire, some wires of the stranded wire can be unwound and not hooked on the adjacent hand-shaped protrusion of the hook. A deflection yoke device having a line frame can be realized.

[0016]

According to the first aspect of the present invention, an A-plane substantially parallel to the cathode-ray tube surface and a bent connection with the A-plane are provided at two ends of the cathode-ray tube surface-side open end and the electron gun-side open end. A wire hook formed by the B surface of the wire guide wall formed by winding, and winding the wire around a bobbin-shaped winding frame formed in a bosh shape to form a coil into a desired predetermined shape. A deflection yoke device comprising:
A C-plane having an angle formed by the A-plane and the B-plane that divides the angle between the A-plane and the B-plane into two equal parts is disposed between the A-plane and the B-plane.

According to a second aspect of the present invention, the shape of the electric wire hooking portion on the electron gun side is formed by an arc surface that is in contact with the A surface and the B surface.

With this configuration, at the end of the cathode ray tube surface, the C surface and the wedge surface coincide with each other, so that the gap between the cathode ray tube and the deflection yoke device matches the wedge shape. In the process of assembling the tube and inserting a wedge on the tube surface side of the deflection yoke device, a gap is formed between the cathode ray tube and the deflection yoke device, so that the wedge is inserted more deeply into the deflection yoke device, Therefore,
The contact area between the wedge and the deflection yoke device is also increased, and the attachment of the deflection yoke device to the cathode ray tube becomes more reliable.

At the opening end on the electron gun side, the electric wire is caught by the electric wire hooking portion adjacent to the target electric wire hooking portion, and the electric wire is inserted into the target electric wire groove, so that the winding speed of the winding machine is reduced. Without operation, the wire is less likely to come off the wire groove for the purpose.

(Embodiment 1) FIG. 1 is an enlarged sectional view of a main part of a winding frame of a deflection yoke device according to Embodiment 1 of the present invention on the cathode ray tube surface side, and FIG. FIG. 3 is a cross-sectional view of a wedge of the deflection yoke device, FIG. 4 is a view showing a state in which the wedge is fitted into a cathode ray tube funnel portion, and FIG. 5 is an external view of an electron gun side electric wire hooking portion. 6 is a cross-sectional view of a hook-shaped projection of the hook portion of the electric wire, FIG. 7 is a diagram illustrating an angle formed by the A surface, the B surface, and the C surface, and FIG. FIG. 9 is a diagram illustrating a state in which the wire is turned, and FIG. 9 is a diagram illustrating a state in which the electric wire is wound around the winding frame. Note that the same reference numerals are given to the same components as those described in the above-described conventional technology, and the description thereof will be omitted.

In FIG. 1, A is substantially parallel to the cathode ray tube surface.
There is a surface and a wire guide wall B surface formed with the same curve as the glass surface (so-called funnel surface) of the cathode ray tube, which is formed by being bent and connected to the surface. The C plane is provided so as to divide the angle formed by the B plane into two equal parts. As shown in FIG. 2, the C-plane is formed at an angle of 25 ° from each of the A-plane and the B-plane so as to bisect the angle 50 ° formed by the A-plane and the B-plane. I have. 9 is an electric wire, and 18 is a funnel surface. In the present invention, “halving” includes approximately two halving.

FIG. 4 is a view in which a wedge 10 is fitted into the widening end of the deflection yoke tube side to fix the deflection yoke device. In this case, since the deflection yoke device is installed in the color cathode ray tube, the deflection yoke device is generally set to about 3 m toward the electron gun.
In this case, the deflection yoke device is moved in the right-hand direction with respect to the funnel surface of the cathode ray tube since the landing y is adjusted by moving the deflection y about m.

FIG. 3 is a sectional view of the wedge. The wedge 10 is made of a rubber-based resin, and as shown in FIG.
The basic constituent surfaces of 0 are two surfaces, a surface 19 that contacts the funnel surface of the cathode ray tube and a surface 20 that contacts the winding frame.
The angle between the two surfaces is about 30 °.

The manner in which the wedge 10 thus configured is fitted into the cathode ray tube funnel will be described with reference to FIG. The wedge 10 is located at the wide end a of the deflection yoke device tube side.
Is prepared, and a force is gradually applied to move it in the direction shown by the arrow to the position b. At this time, since the wedge 10 is made of a rubber-based resin, the constituent angle of the surface that comes into contact with the funnel and the winding frame gradually decreases due to the insertion force. It is clear that this decreasing angle is proportional to the force with which the wedge 10 is inserted. Generally, the insertion force is 30
The force is about 5 kg-cm, and the wedge 10 is reduced by about 5 ° by this force.

At this time, since the horizontal deflection coil winding frame of the deflection yoke device has the C surface as described above, the C surface matches the surface of the fitted wedge winding frame. When the wedge 10 is fitted and the above-described force of about 30 kg is applied, the angle formed between the surface of the wedge 10 that contacts the funnel and the surface of the wedge 10 that contacts the winding frame becomes 25 °, which corresponds to the funnel surface of the cathode ray tube. This corresponds to the angle formed between the winding frame and the C plane, and the contact area between the wedge 10 and the winding frame is maximized. That is, when the wedge 10 is fitted with the same force, the larger the area of contact between the wedge 10 and the winding frame, the more the fixing between the deflection yoke device and the cathode ray tube is maximized.

FIG. 5 is an external view of an electron gun-side electric wire hooking portion of the present invention, and FIG. 6 is a cross-sectional view of a hook-shaped projection of a hook of the electric wire hooking portion. As shown in FIG. 6, an A surface substantially parallel to the cathode ray tube surface, and an electric wire guide wall B formed by being bent and connected thereto.
The plane C is provided between the plane A and the plane A so as to divide the angle formed by the planes A and B into two. As shown in FIG. 7, the angle formed by the planes A, B, and C is such that the plane formed by dividing the angle formed by the planes A, B into two. That is, in this case, the A side and the B side
Since the angle is 93 °, the angle between the A and C surfaces and between the B and C surfaces is 45 ° and 48 ° by forming the C surface.

The role of the C-plane will be described with reference to FIG. 8 showing a process of winding an electric wire around a winding frame. Generally, when winding an electric wire around a winding frame, the electric wire 9 is passed through an electric wire nozzle 21 attached to a winding machine and wound around the winding frame. FIG.
(A), (b), (c) is a figure which shows a mode that an electric wire is wound around an electron gun side opening end.

Although the electric wire is wound around the winding frame through the electric wire nozzle 21, as shown in FIG. 8, it is better to move the electric wire nozzle 21 very close to the winding frame to make the electric wire 9 Easy to fit inside the wire guide wall. Therefore,
When the electric wire 9 is wound around the electric wire guide wall portion, the electric wire nozzle 21 moves from the cathode ray tube surface side of the electric wire wall, the B surface, moves to the C surface formed by bending connection, and further from the C surface. It moves and comes to move to the A side.

When moving the conventional bent and connected portion, the speed of the winding machine was reduced. However, when winding the electric wire around the winding frame of the present invention, the angle formed by this surface is divided into two. Therefore, the movement of the electric wire nozzle at this point moves in an arc with the point c as the central axis. The speed of such an arc movement is greatly improved as compared with the case of performing an arc movement by combining linear movements.

FIG. 9 shows a state in which an electric wire is wound around the winding frame of the present invention. As is clear from this figure, the position of the wire after winding is also such that the wire rises at the opening end on the electron gun side, and does not drop into, for example, the hand-like projection of an adjacent hook.

(Embodiment 2) FIG. 10 is a sectional view of a hook-shaped projection of a hook of a wire hooking portion according to Embodiment 2 of the present invention. Reference numeral 22 denotes an arc portion of the hook-shaped protrusion. In the second embodiment, instead of forming the above-described C surface, the A surface and the B surface are connected by an arc.

[0032]

As described above, according to the present invention, the shape of the electric wire hooking portion is such that the angle formed by the surface A and the surface B has an angle which substantially divides the angle between the surface A and the surface B into two equal parts. A side and B
It is arranged in the middle of the plane, and at the opening end on the electron gun side, it is formed by an arc contacting the plane A and the plane B, so that the plane of the plane C and the plane of the wedge coincide at the end of the plane of the cathode ray tube. The gap between the deflection yoke device and the deflection yoke device matches the shape of the wedge. In the process of assembling the deflection yoke device to the cathode ray tube and fitting the wedge on the tube surface side of the deflection yoke device, the gap between the cathode ray tube and the deflection yoke device is obtained. Since the gap is formed, the wedge is inserted more deeply into the deflection yoke device,
Therefore, the contact area between the wedge and the deflection yoke device is also increased, and the attachment of the deflection yoke device to the cathode ray tube is more reliable.

At the opening end on the electron gun side, the electric wire is caught by the electric wire hooking portion adjacent to the target electric wire hooking portion, and the electric wire is inserted into the target electric wire groove, so that the winding speed of the winding machine is reduced. Without operation, the wire is less likely to come off the wire groove for the purpose.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a main part of a winding frame of a deflection yoke device according to a first embodiment of the present invention on a cathode ray tube surface side;

FIG. 2 is a configuration diagram of a C-plane of a winding frame according to the first embodiment of the present invention.

FIG. 3 is a sectional view of a wedge of the deflection yoke device according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a state in which the wedge according to the first embodiment of the present invention is fitted into a cathode ray tube funnel.

FIG. 5 is an external view of an electron gun-side electric wire hooking portion according to the first embodiment of the present invention.

FIG. 6 is a sectional view of a hook-shaped protrusion of a hook portion of the electric wire hooking portion according to the first embodiment of the present invention.

FIG. 7 is a view for explaining the angle formed by the A, B, and C planes according to the first embodiment of the present invention.

FIG. 8 is a diagram showing a state in which an electric wire is wound around an electron gun side opening end according to the first embodiment of the present invention;

FIG. 9 is a diagram illustrating a state where an electric wire is wound around the winding frame according to the first embodiment of the present invention.

FIG. 10 is a sectional view of a hook-shaped protrusion of a hook portion of an electric wire hooking portion according to the second embodiment of the present invention.

FIG. 11 is a half side view of a deflection yoke device combined with a conventional cathode ray tube.

FIG. 12 is a front view of a conventional slot type deflection coil.

FIG. 13 is a perspective view of a conventional hand-shaped projection of a hook at the tube surface wide-open end.

FIG. 14 is a perspective view of a conventional hook-shaped projection at the opening end on the electron gun side.

FIG. 15 is a diagram for explaining a state in which winding of an electric wire is started from a conventional electron gun side open end.

FIG. 16 is a diagram illustrating a state in which an electric wire is wound around a conventional slot frame.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 electron gun 2 cathode ray tube surface 3 cathode ray tube axis 4 horizontal axis 5 vertical axis 6 horizontal deflection coil 7 vertical deflection coil 8 core 9 electric wire 10 wedge 13 electric wire guide wall 14 wide open end on display surface 15 open end on electron gun side 16 Hand projection of hook on tube surface 17 Hand projection of hook on electron gun 18 Funnel surface 19 Surface that contacts wedge and funnel 20 Surface that contacts wedge and deflection yoke winding frame 21 Wire nozzle of winding machine 22 Hook Arc of hand projection

Claims (2)

[Claims] 1. An A surface substantially parallel to a cathode ray tube surface and a B surface of a wire guide wall formed by being bent and connected to the A surface at two ends of a cathode ray tube surface side open end and an electron gun side open end. A deflection yoke device comprising an electric wire hooking portion configured by winding an electric wire around a bobbin frame formed by bending in a bosh shape to form a coil in a desired predetermined shape, The shape of the wire hooking portion is such that the angle formed by the A surface and the B surface has an angle that divides the angle between the A surface and the B surface into two equal parts. A deflection yoke device, wherein 2. The shape of a wire hooking portion on the electron gun side is as follows:
2. The deflection yoke device according to claim 1, wherein the deflection yoke device is formed by an arc surface that is in contact with the A surface and the B surface.