Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for adjusting deflection-coil horizontal coils

A deflecting coil and horizontal line technology is applied in the manufacture of magnetic deflection devices, electrode devices and related components, etc., which can solve the problems of poor convergence grade, waste of materials and labor, and small width, so as to achieve the advantages of less usage and improved convergence quality. Effect

Inactive Publication Date: 2009-11-18
CAIHONG GRP ELECTRONICS CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for adjusting deflection-coil horizontal coils

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 7

[0028] Example 1 37cm15X deflection coil

[0029] The first step is to measure the diameter of the outer cavity neck diameter a of the horizontal coil, the opening diameter d of the horizontal coil, the horizontal coil inner cavity neck diameter b, and the horizontal coil inner cavity opening diameter c, where a=36mm, b=5mm , C=52mm, d=77mm;

[0030] The second step is to calculate K1, K2 according to the following formulas (1) and (2),

[0031] a / d=K1 (1)

[0032] b / c=K2 (2)

[0033] K1=a / d=36 / 77=0.4675 is a fixed value,

[0034] K2=b / c=5 / 52=0.096;

[0035] The third step is to adjust b from 5mm to b’=16mm, and c from 52mm to c’=57mm, and calculate K2’

[0036] K2’=b’ / c’=16 / 57=0.28 then

[0037] K1-K2’ = 0.1475 K1-K2 = 0.3695

[0038] K1-K2’

[0039] Advantages after adjustment: ①The green drop angle is changed from 0.8mm to 0.5mm; ②Half-point convergence is 1.0mm, reduced to 0.5mm; ③XH+ convergence is 0.7mm, controlled at 0.4±0.1mm, which meets the convergence requirements...

Embodiment 2 4

[0040] Embodiment 2 54cmFS deflection coil

[0041] The first step is to measure the diameter of the outer cavity neck diameter a of the horizontal coil, the opening diameter d of the horizontal coil, the horizontal coil inner cavity neck diameter b, and the horizontal coil inner cavity opening diameter c, where a=31mm, b=4mm , C=52mm, d=72mm;

[0042] The second step is to calculate K1, K2 according to the following formulas (1) and (2),

[0043] a / d=K1 (1)

[0044] b / c=K2 (2)

[0045] K1=a / d=31 / 72=0.43 is a fixed value,

[0046] K2=b / c=4 / 52=0.076;

[0047] In the third step, adjust b from 4mm to b’=7mm; adjust c from 52mm to c’=57mm; calculate K2’

[0048] K2’=b’ / c’=7 / 57=0.1228 then

[0049] K1-K2’=0.3072 K1-K2=0.354

[0050] K1-K2’

[0051] Advantages after adjustment: ①Remove the neck and opening pins; ②Upper and lower trapezoid distortion from top+bottom=7mm, adjusted to top+bottom=3mm; ③green corner drop from 0.8mm to 0.5mm; ④corner horizontal line It is reduced from 1...

Embodiment 3 4

[0052] Example 3 Deflection coil of 64cmPF

[0053] The first step is to measure the diameter of the outer cavity neck of the horizontal coil a, the opening diameter of the horizontal coil d, the horizontal coil inner cavity neck diameter b, and the horizontal coil inner cavity opening diameter c, where a=38mm, b=12mm , C=55mm, d=85mm;

[0054] The second step is to calculate K1, K2 according to the following formulas (1) and (2),

[0055] a / d=K1 (1)

[0056] b / c=K2 (2)

[0057] K1=a / d=38 / 85=0.447 is a fixed value,

[0058] K2=b / c=12 / 55=0.218;

[0059] The third step is to adjust b from 12mm to b’=18mm; c from 55mm to c’=57mm; calculate K2’:

[0060] K2’=b’ / c’=18 / 57=0.315

[0061] K1-K2’=0.132 K1-K2=0.229

[0062] Then K1-K2’

[0063]Advantages after adjustment: ①The half-point horizontal line pincushion changed from 1.0mm to 0.6mm; ②The four corners pincushion changed from 1.2mm to 1.0mm; ③The 10-point green corner dropped from 0.7mm to 0.5mm.

[0064] To sum up, the prese...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for adjusting deflection-coil horizontal coils. The method achieves aims of obviously improving dynamic performances and solving static adjustment conflicts by controlling the outline diameter of opening parts and neck parts of coils, the diameter ratio of inner cavities, and the epitaxial curvature of the neck parts and the opening parts, and solves the problems that the conventional adjustment method has large half points, green off angles, pillow-shaped transverse lines, reverse barrel / pillow-shaped vertical lines, and the like. Under the same conditions, the method is low in material consumption and high in convergence grade, can replace a pin-driving method within a certain range, and greatly improves equipment efficiency. Meanwhile, the method transforms customary abstract barrel-shaped fields and pillow-shaped fields into visual size-data comparison, thereby ensuring convenient and fast adjustment.

Description

Technical field [0001] The invention relates to the field of manufacturing deflection coils of a color picture tube, 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 problem of the horizontal coil of the deflection coil is: the design of the neck colt is generally between 5-7mm, 6.12 point G is dropped, the horizontal line pincushion, the vertical line barrel pillow at the half point The shape reversal affects the dynamic convergence grade. The current adjustment methods are as follows: 1. Increase the coil gap; make the horizontal line pincushion smaller, causing the vertical line barrel shape to become larger, otherwise, vice versa; 2. Use pins to divide the line and increase the number of turns in the barrel area, and the vertical line barrel shape The amount becomes larger, otherwise, vice versa; 3. Raise the hill of the forming mold, the half point bec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/236H01J29/76
Inventor 蔺泾丽李晓峰
Owner CAIHONG GRP ELECTRONICS CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com