CN2760747Y - Deflection coil edging beam static convergence correcting device - Google Patents
Deflection coil edging beam static convergence correcting device Download PDFInfo
- Publication number
- CN2760747Y CN2760747Y CN 200520078273 CN200520078273U CN2760747Y CN 2760747 Y CN2760747 Y CN 2760747Y CN 200520078273 CN200520078273 CN 200520078273 CN 200520078273 U CN200520078273 U CN 200520078273U CN 2760747 Y CN2760747 Y CN 2760747Y
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- CN
- China
- Prior art keywords
- deflecting coil
- magnetic field
- static convergence
- utility
- model
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a deflection coil edging beam static convergence correcting device, which comprises a deflecting coil body and an isolator arranged on the deflecting coil body, wherein the isolator is provided with a couple of constant magnetic bodies and the constant magnetic bodies are arranged on a neck of the deflecting coil near an electron gun transmitting position. A quadrupole magnetic field of the utility model is arranged near the electron gun transmitting position, and the electron beam can firstly applied with the action of the quadrupole magnetic field when stroke out. According to the action principle of the magnetic field, two side beams of the electron beam can be applied with the action of different directional magnetic field force, so the two side beams can be separated, therefore the utility model can attain the purpose of correcting the edging beam static convergence of the deflecting coil.
Description
Technical field
The utility model belongs to color picture tube/display tube deflecting coil manufacturing and final assembly field, specifically is installed in the deflecting coil limit bundle static convergence correction device on color picture tube/display tube deflecting coil in color picture tube/display tube deflecting coil manufacture process.
Background technology
In low-cost picture tube design, because the under convergence phenomenon of static convergence causes OCV not meet design requirement, usually, can reach requirement by adjusting electron gun structure or changing mask design, but so not only can increase the cost of pipe, and can delay the design cycle of homogeneous tube.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of deflecting coil limit simple in structure, easy for installation bundle static convergence correction device is provided.
For achieving the above object, the technical solution adopted in the utility model is: comprise deflecting coil body and the isolator that is arranged on the deflecting coil body, be characterized in, a pair of permanent magnet is installed on isolator, said permanent magnet is positioned at the neck of deflecting coil near electron gun transmitting site place.
Another characteristics of the present utility model are: the permanent magnet symmetry is installed on the isolator.
Because quadripolar magnetic field of the present utility model is installed near electron gun emission place, when electron beam is got, at first be subjected to the quadripolar magnetic field effect, according to the action of a magnetic field principle, electron beam both sides bundle is subjected to the magnetic field force effect of different directions, make the both sides bundle produce separation, thereby reach the purpose of correction deflector coil side bundle static convergence.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is a deflecting coil of the present utility model limit bundle static convergence correction schematic diagram.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in further detail.
Referring to Fig. 1,2, the utility model comprises deflecting coil body 4 and the isolator 2 that is arranged on the deflecting coil body 4, on isolator 2, be symmetrically installed with a pair of permanent magnet 1, this permanent magnet 1 is positioned at electron gun emission place of the neck 3 of deflecting coil, and this forms quadripolar magnetic field to 1 pair of color picture tube of permanent magnet/show tube electron gun institute electrons emitted bundle.
Referring to Fig. 3, because permanent magnet 1 is installed near electron gun emission place and has formed quadripolar magnetic field, when electron beam is got, at first be subjected to permanent magnet 1 quadripolar magnetic field effect, according to the action of a magnetic field principle, the both sides bundle of electron beam is subjected to the magnetic field force effect of different directions, makes the both sides bundle produce separation, thereby reaches the purpose of correction deflector coil side bundle static convergence.
The utility model is fixed on the tapering of deflecting coil isolator neck by color picture tube/display tube with quadripolar magnetic field, solved the bad problem of OCV of homogeneous tube design, and have easy and simple to handle, accurate positioning, solid and reliable, advantages such as the clean and tidy standard of outward appearance help the use of homogeneous tube and the manufacturing of deflecting coil.
Claims (2)
1, a kind of deflecting coil limit bundle static convergence correction device, comprise deflecting coil body [4] and be arranged on isolator [2] on the deflecting coil body [4], it is characterized in that: a pair of permanent magnet [1] is installed on isolator [2], and said permanent magnet [1] is positioned at the neck [3] of deflecting coil near electron gun transmitting site place.
2, deflecting coil according to claim 1 limit bundle static convergence correction device, it is characterized in that: said permanent magnet [1] symmetry is installed on the isolator [2].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078273 CN2760747Y (en) | 2005-01-24 | 2005-01-24 | Deflection coil edging beam static convergence correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078273 CN2760747Y (en) | 2005-01-24 | 2005-01-24 | Deflection coil edging beam static convergence correcting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760747Y true CN2760747Y (en) | 2006-02-22 |
Family
ID=36082947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520078273 Expired - Fee Related CN2760747Y (en) | 2005-01-24 | 2005-01-24 | Deflection coil edging beam static convergence correcting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760747Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277966A (en) * | 2015-11-11 | 2016-01-27 | 广东中能加速器科技有限公司 | Beam deflection tracking detection and correction device |
-
2005
- 2005-01-24 CN CN 200520078273 patent/CN2760747Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277966A (en) * | 2015-11-11 | 2016-01-27 | 广东中能加速器科技有限公司 | Beam deflection tracking detection and correction device |
| CN105277966B (en) * | 2015-11-11 | 2017-09-29 | 广东中能加速器科技有限公司 | A kind of beam bending tracing detection and means for correcting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20140124 |