JPH0641045U - Deflection yoke - Google Patents

Abstract

(57) [Abstract] [Purpose] In the slit insulation frame of the deflection yoke, the variation in the position of the copper wire in the slit is prevented, and the convergence is stabilized. [Structure] 10 is a plurality of auxiliary ribs formed inside each slit. By providing a plurality of small auxiliary ribs 10 inside each slit in this way, slippage of the copper wire 2 inside the slits in the winding process is performed. Is hindered, and the coil position in each slit of the horizontal deflection coil 4 is stabilized. [Effect] By providing the auxiliary rib inside the slit, it is possible to prevent variation in the position of the copper wire.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deflection yoke installed in a cathode ray tube of a television receiver or the like.

[0002]

[Prior art]

 Generally, in the slit winding type deflection yoke, the winding is provided for each slit, and the variation of the copper wire in the slit alone is not considered. Therefore, the variation in the position of the copper wire in the slit causes an imbalance in the magnetic field, which has a considerable influence on the convergence.

In FIG. 6, 1 is a conventional slit insulating frame, and 2 is a copper wire forming a saddle type horizontal deflection coil. FIG. 5 shows an enlarged sectional view of the slit insulating frame 1. This slit insulating frame was attached to the winding machine, and the copper wire 2 was wound around each slit.

[0004]

[Problems to be solved by the device]

 However, in the configuration of the conventional slit insulating frame, in the winding process, the copper wire 2 in the upper coil may be deviated more toward the center than the lower coil, as shown in FIG. 6, for example. In this way, when the copper wire 2 in the upper coil is biased more toward the center than the lower coil, the magnetic field generated from each slit is biased, and the red beam R is projected to the right on the screen of the cathode ray tube as shown in FIG. There was a problem such that the blue beam B was relatively moved upward and to the right due to the downward force.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a deflection yoke in which the variation of the copper wire in each slit is reduced and the influence on the convergence is reduced.

[0006]

In order to achieve the above object, in the deflection yoke of the present invention, one or a plurality of auxiliary ribs are provided inside each slit of the slit insulation frame for the horizontal deflection coil.

[0007]

[Action]

 Auxiliary ribs inside each slit prevent the copper wire from slipping during winding and prevent variations in the position of the copper wire in the slit.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a slit winding type deflection yoke of this embodiment. In FIG. 1, 3 is a slit insulating frame, 4 is a horizontal deflection coil, 5 is a vertical deflection coil, 6 is a cylindrical core, 7 is a cover, and 8 is a cover. 2 is a copper wire similar to the conventional example shown in FIG.

FIG. 2 is a sectional view of the slit insulating frame 3 of the present invention taken along the line A-A ′ shown in FIG. As shown in FIG. 2, the slit insulating frame 3 is provided with slit dividing ribs 9 that form a plurality of slits, and the copper wire 2 is accommodated in each slit divided by the ribs 9.

A plurality of auxiliary ribs 10 are formed inside each slit. By providing a plurality of small auxiliary ribs 10 inside each slit in this way, the copper wire 2 is prevented from slipping inside the slit during the winding process, and the coil position within each slit of the horizontal deflection coil 4 is stabilized. Will be done.

Therefore, as shown in FIG. 3, the position of the magnetic field generated from each slit is stable at the center of the slit, and a balanced screen as shown in FIG. 4 can be obtained even in the screen of the cathode ray tube. You can

As described above, in the deflection yoke of this embodiment, the deflection coils (copper wires) are mechanically vertically or horizontally symmetrical, and stable characteristics can be obtained.

[0013]

[Effect of device]

 As described above, according to the present invention, by providing one or more auxiliary ribs inside each slit of the horizontal deflection coil slit insulating frame, there is little variation in the position of the copper wire in the slit of the slit insulating frame, and a stable convergence is achieved. The characteristics can be obtained. That is, the position of the copper wire in the slit is made uniform by the auxiliary rib, and the magnetic field generated by the deflection coil (copper wire) is made uniform. Therefore, the magnetic field distributions due to the upper and lower coils and the left and right coils of the deflection yoke are symmetrical, and it is possible to obtain a convergence characteristic without imbalance.

[Brief description of drawings]

FIG. 1 is a sectional view of a deflection yoke according to an embodiment of the present invention.

FIG. 2 is a view of a deflection yoke A- according to an embodiment of the present invention.
A'cross section

FIG. 3 is an explanatory diagram showing a magnetic field of a horizontal deflection coil of a deflection yoke according to an embodiment of the present invention.

FIG. 4 is an explanatory view showing a screen of a deflection yoke in an embodiment of the present invention.

FIG. 5 is a sectional view of a conventional deflection yoke.

FIG. 6 is an explanatory diagram showing a magnetic field of a horizontal deflection coil of a conventional deflection yoke.

FIG. 7 is an explanatory view showing a screen of a conventional deflection yoke.

[Explanation of symbols]

 2 Copper wire 3 Slit insulation frame 4 Horizontal deflection coil 5 Vertical deflection coil 6 Cylindrical core 9 Slit dividing rib 10 Auxiliary rib

Claims (1)

[Scope of utility model registration request] 1. A conductor having a slit insulating frame for forming a saddle-type deflection coil, an auxiliary rib provided inside each slit of the slit insulating frame, and containing a conductor in each slit of the slit insulating frame. A deflection yoke characterized in that a saddle-type deflection coil is formed by winding.