JPS63261657A - Deflection yoke - Google Patents

Abstract

PURPOSE:To reduce scattering in winding for improving accuracy, by setting the width of each winding groove almost equal to the diameter of one copper wire or to the width of the copper wire, and performing multilayer winding in a line in each winding groove. CONSTITUTION:Winding is performing by having winding grooves 6 provided on the internal periphery of a deflection yoke bobbin 5 and winding groove 7 on the circumference provided on its both ends as a bobbin. At this time, the widths of the winding grooves 6 provided on the internal periphery of the deflection yoke bobbin 5 are so set that they may be almost equal to a copper wire diameter in the case of copper wire 8 having a circular section and to the copper wire width in the case of copper wire having an angular section in order that the copper wire 8 and 9 can be piled up in multilayers one in a row inside each winding groove 6. In this way, multilayer winding is performed by piling one copper wire 8 and 9 in each winding groove 6 so that the copper wire 8 and 9 in the winding groove 6 has regularity for stabilizing the distribution of a deflection magnetic field. Thereby, accurary as the deflection yoke can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deflection yoke for a picture tube used in a display or the like.

BACKGROUND ART As shown in FIG. 6, this type of conventional deflection yoke has a winding groove 2 provided on the trumpet-shaped inner peripheral surface of a deflection yoke bobbin 1 and a circumferential winding groove provided at both ends of the winding groove 2. 3
As shown in FIG. 6, the copper wire 4 is repeatedly wound multiple times irregularly in each of the inner circumferential surface winding grooves 2 using .

Problems to be Solved by the Invention In the conventional configuration described above, the windings are not regular and have large variations. Therefore, the deflection magnetic field characteristics are not stable, and in the final manufacturing process of the deflection yoke, adjustments to the magnetic field distribution such as pasting magnetic pieces and rotating semi-fixed magnetic pieces are repeated, resulting in large process losses.

As a countermeasure to the above-mentioned problems, the present invention provides a highly accurate deflection yoke by reducing winding variations as much as possible.

Means for Solving the Problems In order to solve the above problems, the deflection yoke of the present invention sets the width of each winding groove to be approximately equal to the diameter or width of one copper wire, and the width of each winding groove is set to be approximately equal to the diameter or width of one copper wire. It has a configuration in which multilayer winding is performed.

Effect As mentioned above, by stacking one copper wire in each winding groove and winding it in multiple layers, the copper wire in the winding groove has regularity, and when winding the wires in multiple rows, A wire feeding portion (traverse portion) for each winding does not occur, making it possible to wind the wire with less variation, stabilizing the deflection magnetic field distribution, and making it possible to improve the precision of the deflection yoke.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a deflection yoke bobbin for stator winding in one embodiment of the present invention. A winding groove 6 provided on the inner circumferential surface of the deflection yoke bobbin 6 and a circumferential winding groove 7 provided at both ends thereof are used as a winding frame for winding. At this time, as shown in FIGS. 3 and 4, the width of the winding groove 6 provided on the inner peripheral surface of the deflection yoke bobbin 6 is the copper wire diameter in the case of a copper wire 8 having a circular cross section, and the width of the winding groove 6 provided in the inner circumferential surface of the deflection yoke bobbin 6. The width of the copper wire 8 is set to be approximately equal to the width of the copper wire, and the copper wires 7 and 9 are stacked one row at a time in each winding groove e to form multilayer winding.

In this way, by stacking one copper wire 8.9 in each winding groove 6 and performing multilayer winding, the copper wire 8.9 in each winding groove 6 is stacked.
9 has regularity, the deflection magnetic field distribution is stable, and the accuracy of the deflection yoke is greatly improved.

Effects of the Invention As described above, the present invention provides a single row of multilayer winding in each winding groove, so that the winding is regular and the variation in the winding of the deflection coil is extremely small. It is of great industrial value as it allows the provision of highly accurate deflection yokes with little variation.

[Brief explanation of the drawing]

FIG. 1 is a top view of a deflection yoke bobbin used in a deflection yoke according to an embodiment of the present invention, FIG. 2 is a sectional view of the same, FIGS.
The figure is a perspective view of a conventional deflection yoke winding bobbin, and FIG. 6 is a sectional view showing the conventional winding state. 6... Deflection yoke bobbin, 6... Inner peripheral surface winding groove, 7... Circumferential upper winding groove, 8...
・Copper wire, 9...Copper wire (Foundation) square shape). Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3

Claims (1)

[Claims] The width of the winding groove of the deflection yoke bobbin, which has a plurality of winding grooves on the inner circumferential surface of the trumpet-shaped winding frame, is set approximately equal to the diameter or width of one copper wire, and the copper wire is inserted into each of the winding grooves. A deflection yoke with multiple layers of wire wound in a row.