A method for adjusting the horizontal coil of deflection yoke

Abstract

A method for adjusting the horizontal coil of a deflection yoke, which adopts the method of controlling the outer diameter of the coil opening and the neck, the ratio of the inner cavity diameter, and the extension curvature of the neck and the opening, so as to achieve the purpose of significantly improving the dynamic performance and solving the contradiction of static adjustment. According to the conventional adjustment method, the problems of half-dot size, green drop-off, horizontal line pillow shape, vertical line barrel pillow shape reverse, etc., under the same conditions, the amount of material used is less, the convergence grade is high, and the pinning method can be replaced within a certain range. It greatly improves the efficiency of the equipment; at the same time, it converts the traditionally abstract barrel-shaped field and pincushion-shaped field into intuitive size data comparison, which is convenient and fast to adjust.

Description

technical field [0001] The invention relates to the field of color picture tube deflection coil manufacturing, in particular to a method for adjusting the horizontal coil of the deflection coil. Background technique [0002] In the structural design of the display used in the TV, the problems existing in the horizontal coil of the deflection coil are: the neck colt design is generally between 5-7mm, the G drop at 6.12 points, the horizontal line pillow shape at the half point, and the vertical line barrel pillow The shape is reversed, which affects the grade of dynamic convergence. The current adjustment methods are as follows: 1. Increase the coil gap; make the pillow shape of the horizontal line smaller, causing the barrel shape of the vertical line to become larger, otherwise, and vice versa; The amount becomes larger, otherwise, vice versa; 3. Raise the mountain part of the forming mold, the half point becomes smaller, the G drop becomes smaller, the barrel shape become...

AI Technical Summary

Problems solved by technology

The above methods, convergence can only be taken into account, take the middle, and at the same time can not solve the contradiction between line width and inductance adjustment, that is, the problem of small line width and low inductance, resulting in the coil not being able to reach the best state, although the convergence problem is finally resolved by the correction material Debugging operations to make corrections, but it consumes materials and labor, which affects the product's competitive advantage

In short, the existing method has the disadvantages of 6.12 point G loss and poor convergence quality

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