JP2701861B2 - Deflection yoke - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke installed in a cathode ray tube such as a television receiver.

2. Description of the Related Art In the case of a saddle type deflection coil generally arranged in a cathode ray tube, as shown in FIG. 3, a horizontal coil is divided vertically along a tube axis of the cathode ray tube, and a vertical coil is divided along a tube axis of the cathode ray tube. After winding the electric wire around the divided winding frame using the winding frame divided into right and left, each of the winding frames around which the electric wire is wound is combined and fitted, and one of the horizontal coil or the vertical coil is used. The coil was configured.

SUMMARY OF THE INVENTION In the case of the conventional deflection yoke configured as described above, the electric wire is divided into upper and lower or right and left half-split winding frames 1 with the opening end 2 on the cathode ray tube screen surface side and the neck side. Wire guide 4 in the direction of the tube axis attached to the open end 3 of the tube
And is wound in a circumferential direction perpendicular to the tube axis at both open ends 2 and 3 to form a saddle shape. At this time, the winding frame 1 is halved due to the tension caused by the winding in the circumferential direction perpendicular to the tube axis, so that a deformation 5 as shown in FIG. The work performance rate of the fitting is lowered, or the non-fitting portion is formed in the winding frame 1, so that the deflection yoke characteristics after the combination of the winding frames are unbalanced.

In addition, since a frame assembling operation is required, a vertical coil cannot be assembled unless a horizontal coil is always assembled, and the vertical coil is always affected by the horizontal coil.

The present invention solves the above-mentioned problem, by eliminating the frame fitting work, eliminating non-conforming fitting, assembling order may be vertical coil, horizontal coil in order, independently, An object of the present invention is to provide a deflection yoke which is hardly affected by one of the coils and which is free from frame deformation due to tension of an electric wire during winding.

Means for Solving the Problems To solve the above problems, the present invention provides a horizontal coil,
Both the vertical coil and the opening end on the screen side of the cathode ray tube and the opening end on the neck side are formed into an annular shape, respectively, and the opening end on the screen side of the cathode ray tube of each winding frame and the cylindrical shape are formed. The core portion and the opening end on the neck side are fitted and connected to each other, and the electric wire is wound over a wire guide at both opening ends to form a saddle shape.

Operation According to the above configuration, the electric wire is wound in the circumferential direction at the integrated open end to form a saddle-type winding, so that the integrated open end eliminates the deformation of the frame when winding the electric wire, and the frame does not fit properly. Since the vertical coil can be assembled before the horizontal coil is assembled, the influence of the horizontal coil can be eliminated.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view of a saddle-saddle type deflection yoke according to one embodiment of the present invention. In FIG. 1, reference numeral 11 denotes a vertical coil winding frame, which comprises an opening end 12 on the screen surface side between the cathode wires, an opening end 13 on the neck side, and a core portion 14 connecting these. These two open ends 12, 13 are fitted and connected to the core portion 14 and bent at the respective open ends 12, 13 to form a saddle-shaped coiled wire guide. 15 is installed. Reference numeral 16 denotes a horizontal coil winding frame, which comprises an opening end 17 on the screen side of the cathode ray tube, an opening end 18 on the neck side, and a core portion (not shown) for connecting these inside the vertical coil winding frame 11. Like the vertical coil winding frame 11, the two open ends 17, 18 are respectively integrated, and these two open ends 17, 18 are fitted and connected to the core portion, and the respective open ends 17, 1,
A bent wire guide 19 for making the coil shape saddle-shaped is attached to 8.

Next, the assembling method will be described. First, the core
The opening end 12 on the screen side of the vertical coil winding frame 11
And the opening end 13 on the neck side are fitted and mounted. FIG. 2 shows the view after the attachment. Next, an electric wire (not shown) is wound into a saddle shape using an electric wire guide 15 attached to both open ends 12 and 13. First, at the open end 12 on the screen surface side, It is wound about 90 ° in the direction of arrow A from the vicinity of the X axis to the vicinity of the Y axis along the circumferential direction, then pulled out along the pipe axis Z to the opening end 13 on the neck side, and further from the vicinity of the Y axis along the circumferential direction Wind about 90 ° in the direction of the arrow B to the vicinity of the X-axis, and then, along the pipe axis Z, open end 12 on the screen side.
Return to This is repeated to form a first saddle type coil (not shown). A second saddle-type coil (not shown) to be paired with the first saddle-type coil is formed at a position symmetrical to the first saddle-type coil with respect to the tube axis Z in a similar procedure.

Next, the opening end of the horizontal coil winding frame 16 on the screen side
17 and the open end 18 on the neck side inside the vertical coil,
FIG. 1 is a view after fitting, which is fitted and fitted to the core portion. The winding of the electric wire (not shown) is performed in the same procedure as in the case of the vertical coil, and at the position corresponding to between the first and second saddle-type coils of the vertical coil winding frame 11, the opening end on the screen surface side The first and second horizontal coils are wound by about 90 ° in the circumferential direction from the vicinity of the Y axis to the vicinity of the X axis, and at the opening end 18 on the neck side from the vicinity of the X axis to the vicinity of the Y axis. Form a saddle-shaped coil.

With the above configuration, the horizontal coil and the vertical coil are each divided vertically, as in a conventional deflection yoke, or a saddle-shaped coil is formed on each of the half-divided winding frames divided into right and left, and It is not necessary to form a horizontal coil and a vertical coil by combining and fitting them, and there is no imbalance that tends to occur in the deflection yoke characteristics after the winding frames are combined as in the related art. Also, as before, assemble the horizontal coil first,
Next, the method of assembling the vertical coil need not be performed.

Advantageous Effects of the Invention As described above, the deflection yoke of the present invention is configured such that the opening ends of the horizontal coil winding frame and the vertical coil winding frame are integrated into an annular shape at each end, so that the winding at that portion is formed. The strength can be improved, the winding frame is not deformed due to the tension in the winding direction at the time of winding the electric wire, and the workability is improved without the necessity of fitting the divided winding frame after winding.

[Brief description of the drawings]

FIG. 1 is an external view of a deflection yoke according to one embodiment of the present invention,
FIG. 2 is a view in which an opening end on a screen surface side and an opening end on a neck side of a cathode ray tube of a vertical coil winding frame are attached to a core portion, and FIG. 3 is divided into two parts along a tube axis of a conventional cathode ray tube. FIG. 4 is a front view illustrating the deformation of the winding frame caused by tension in the winding direction when the electric wire is wound around the conventional divided winding frame. 11 ... vertical coil winding frame, 12 ... screen side opening end, 13 ... neck side opening end, 14 ... core part, 15 ... wire guide, 16 ... horizontal coil winding frame, 17 ... screen Side opening end, 18 ... Neck side opening end, 19 ... Wire guide.

Claims (1)

(57) [Claims] 1. A deflection yoke having a horizontal coil winding frame and a vertical coil winding frame to which a bent wire guide for forming a horizontal coil and a vertical coil into a saddle shape, respectively, is provided. An opening end on the screen side of the cathode ray tube of the frame, a cylindrical core portion and an opening end on the neck side are respectively formed in an annular shape integrated with each other, and the opening of the winding frame on the screen side of the cathode ray tube is formed. The end portion, the cylindrical core portion, and the neck-side open end portion are fitted and connected to each other, and at the time of winding the wire, the wire guide and the neck side of the open end portion of the cathode ray tube on the screen surface side. A deflection yoke which is formed by winding an electric wire between electric wire guides at an open end of the saddle shape.