CN1087868C - Positioning structure of assembling eccentric polarizing sheet of electron gun of cathod ray tube - Google Patents
Positioning structure of assembling eccentric polarizing sheet of electron gun of cathod ray tube Download PDFInfo
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- CN1087868C CN1087868C CN97103024A CN97103024A CN1087868C CN 1087868 C CN1087868 C CN 1087868C CN 97103024 A CN97103024 A CN 97103024A CN 97103024 A CN97103024 A CN 97103024A CN 1087868 C CN1087868 C CN 1087868C
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- eccentric
- polarizing sheet
- pole piece
- assembling
- ray tube
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- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
The present invention relates to an accurate positioning structure for an eccentric pole piece in the assembly of an electronic gun in a cathode ray tube, and the pole piece of the electronic gun in the cathode ray tube is assembled in the three-shaft positioning mode of an assembling clamp. When through holes for the passing process of electronic beams on both sides of the pole piece have eccentric hole diameter, the eccentric pole piece assembled by the present invention can be accurately positioned and can not be deviated. The corresponding positions of the positioning element of the present invention and the eccentric pole piece are respectively provided with constructions capable of being mutually buckled, and the eccentric pole piece is positioned on a fixed position by the tight embedded effect of the constructions mutually buckled.
Description
The present invention relates to a kind of cathode ray tube electron gun and assemble the accurately structure of location of seasonal eccentric polarizing sheet, especially refer to a kind of retaining element that passes through, make cathode ray tube when the eccentric polarizing sheet of assembling electron gun, the three-beam electron-beam of electron gun eccentric polarizing sheet is positioned on the fixed position exactly, so that can accurately be incident upon the structure that the eccentric polarizing sheet on the video picture screen is accurately located.
The application of cathode ray tube is very general at present, all traditional color TVs and even high-resolution computer monitor, even medically other application of ultrahigh resolution, all use cathode ray tube, the electron gun of the cathode ray tube that these are traditional, under the colour picture situation, comprising one group is level and (promptly produces red respectively to the negative electrode of linear array, green, three negative electrodes of electron beams such as indigo plant), the electronics that this cathode emission goes out will form three-beam electron-beam in this electron gun, after main lens Jiao that this three-beam electron-beam is formed via focusing electrode and anode again gathers, to be projected on the video picture screen, and after scanning, on the video picture screen, constitute coloured image, and monochromatic cathode ray tube, one electron beam is then only arranged, be projected on the screen.
Conventional cathode ray tube adopts three locate modes of assembling fixture when the pole piece of assembling electron gun, and is provided with the through hole that passes through for three-beam electron-beam on each pole piece, and so three through holes with each pole piece are set on three locating shafts of assembling fixture.Just, the through hole of these pole piece both sides is that the aperture of eccentric aperture or through hole is during greater than the locating shaft diameter of axle, the space that is produced between the locating shaft of aperture and assembling fixture, can cause pole piece to produce the rotation shift phenomenon because of this space, cause assembly precision not high, the three-beam electron-beam of electron gun can't accurately be incident upon on the video picture screen.
Purpose of the present invention is to provide a kind of cathode ray tube electron gun to assemble the accurately structure of location of seasonal eccentric polarizing sheet.
In order to realize purpose of the present invention, the present invention is a kind of structure of eccentric polarizing sheet assembling location of cathode ray tube electron gun, comprise the assembling fixture that has with three corresponding three locating shafts of through hole of this eccentric polarizing sheet, and the setting element of the described eccentric polarizing sheet of assembling, described setting element is a partition, it is a plate, the size of described partition is greater than pole piece, and described partition is provided with the through hole corresponding to three locating shafts, protruded out a lug boss at described partition one end, the height of described lug boss is equal to or less than pole piece thickness, on described lug boss, be provided with a female buckle element, and described pole piece is provided with the public buckle element that matches at the end corresponding to described female buckle element, by the mother on described setting element and the described eccentric polarizing sheet, closely chimeric between the public buckle element is positioned at described eccentric polarizing sheet assembling on the fixed position.
Therefore, after the present invention adopts said structure, can significantly improve the shortcoming that has packaging technology, can locate very accurately when making the eccentric polarizing sheet assembling, the three-beam electron-beam of electron gun can accurately be incident upon on the video picture screen by setting element of the present invention.
Below in conjunction with accompanying drawing, embodiments of the invention are described as follows:
Fig. 1 is an electron gun overall structure schematic diagram of the present invention.
Fig. 2 is the retaining element schematic diagram of the first embodiment of the present invention.
Fig. 3 is the schematic diagram after the electron gun pole piece assembling of the present invention.
Fig. 4 is the structural representation of the second embodiment of the present invention.
Consult Fig. 1, shown in Figure 2, the present invention is that a kind of cathode ray tube electron gun is assembled the accurately structure of location of seasonal eccentric polarizing sheet, mainly finger utilizes a plurality of pole pieces 2 of three locate modes assembling cathode ray tube electron guns 10 of assembling fixture 1, these pole pieces 2 are respectively equipped with three through holes 21 that make three-beam electron-beam pass through respectively, 22,23, wherein, these pole pieces include eccentric polarizing sheet 2 ', the through hole 21 that its both sides make electron beam pass through, 22,23 is eccentric aperture, in addition, assembling fixture 1 is provided with three locating shafts 11,12,13, make the through hole 21 of pole piece 2,22,23 are set on locating shaft 11 respectively, 12, on 13.
Among the present invention for prevent because of eccentric polarizing sheet 2 ' eccentric aperture 21,23 with locating shaft 11, the space that is produced between 13 cause eccentric polarizing sheet 2 ' skew, be provided with a setting element, this setting element is a partition 3, it is a plate, the size of this partition 3 be slightly larger than eccentric polarizing sheet 2 ', and also be provided with on the partition 3 corresponding to three locating shafts 11,12,13 through hole 31,32,33, protruded out a lug boss 34 in partition 3 one ends, the height of this lug boss 34 is equal to or slightly less than eccentric polarizing sheet 2 ' thickness, in the present embodiment, be provided with a female buckle element 51 in lug boss 34, this mother's buckle element 51 is a groove 511, eccentric polarizing sheet 2 ' then the be provided with public buckle element 52 that matches at a end corresponding to this groove 511, this public affairs buckle element 52 can be projection 521, also can on this lug boss 34, be provided with a projection 521 among the present invention, eccentric polarizing sheet 2 ' on then be provided with the groove 511 that matches, and the through hole 31 of this partition 3,32,33 positions and big palpulus eccentric polarizing sheet 2 ' desire to reach in the scope of assembly precision.
With reference to Fig. 2, shown in Figure 3, when the 2 ' time of eccentric polarizing sheet of beginning assembling electron gun 10, promptly earlier a partition 3 is set in three locating shafts 11,12, on 13, then with an eccentric polarizing sheet 2 ' also be set in three locating shafts 11 of assembling fixture 1,12, on 13, make eccentric polarizing sheet 2 ' place on the partition 3, and eccentric polarizing sheet 2 ' on the groove 511 of projection 521 buckles on partition 3 in, make eccentric polarizing sheet 2 ' tightly be mounted on the partition 3, and the location is lived, so, even eccentric polarizing sheet 2 ' through hole 21,23 with the locating shaft 11 of assembling fixture 1,13 produce space 211,231, also can't make eccentric polarizing sheet 2 ' via this space 211,231 rotation skews, thereby the eccentric polarizing sheet 2 ' all that order is assembled can accurately be incident upon on the video picture screen three-beam electron-beam of electron gun 10 within the accuracy rating of assembling.
Refer again to shown in Figure 1, when with after all pole pieces 2,2 ' assembling finishes of electron gun, be about to these pole pieces 2,2 ' both sides be separately fixed on the fixed mount 4, at this moment, assembler can be extracted three locating shafts 11,12,13 of assembling fixture 1 out from pole piece 2 through holes 21,22,23, again partition 3 is detached from pole piece 2, and be assembled into the electron gun 10 of a complete cathode ray tube.
Fig. 4 illustrates the second embodiment of the present invention, wherein, respectively be provided with an elastic mechanism 6 in both sides corresponding to eccentric polarizing sheet 2 ' assembled position, this elastic mechanism 6 includes a hollow tube 61, body 61 1 ends are installed on the housing 14 of assembling fixture 1, the other end then corresponding to eccentric polarizing sheet 2 ' the position be provided with a public buckle element that convexedly stretches in the setting element outside the body 61, this public affairs buckle element is a steel ball 71, and be provided with the necking part 611 that an end of steel ball 71 forms at body 61, preventing via this necking part 611 that steel ball 71 from ejecting drops, and restriction steel ball 71 ejection amounts, and the end of steel ball 71 in body 61 is against a flexible member 62 is arranged, it can be spring, eccentric polarizing sheet 2 ' then be provided with female buckle element of setting element, this mother's buckle element is a short slot 72, in addition, body 61 1 ends of an elastic mechanism 6 lock is provided with one and adjusts screw 63 therein, this adjustment screw 63 is resisted against on the flexible member 62, make via adjusting screw 63 and adjust the elastic force of flexible member 62, and when desire is changed flexible member 62 or steel ball 71, need only unclamp from body 61 adjusting screw 63, promptly replaceable flexible member 62 or steel ball 71, very convenient.
In the present embodiment, when assembling pole piece 2, when if non-eccentricity pole piece 2 passes through elastic mechanism 6 positions, the steel ball 71 of can conflicting, steel ball 71 then rolls and extruding flexible member 62 in body 61, non-eccentricity pole piece 2 can be passed through smoothly, and when eccentric polarizing sheet 2 ' assembling is set in locating shaft 11,12,13 and is positioned at elastic mechanism 6 positions, promptly via the elastic force of flexible member 62 make steel ball 71 convexedly stretch in eccentric polarizing sheet 2 ' short slot 72 in, make eccentric polarizing sheet 2 ' can't rotate skew, and be positioned in the scope of assembly precision.
In sum,, make the eccentric polarizing sheet 2 ' time of cathode ray tube, can make eccentric polarizing sheet 2 ' be positioned on the fixed position exactly, thereby the three-beam electron-beam of electron gun can accurately be incident upon on the video picture screen at assembling electron gun via setting element of the present invention.
Claims (4)
1, a kind of structure of eccentric polarizing sheet assembling location of cathode ray tube electron gun, comprise the assembling fixture that has with three corresponding three locating shafts of through hole of this eccentric polarizing sheet, and the setting element of the described eccentric polarizing sheet of assembling, it is characterized in that, described setting element is a partition, it is a plate, the size of described partition is greater than pole piece, and described partition is provided with the through hole corresponding to three locating shafts, protruded out a lug boss at described partition one end, the height of described lug boss is equal to or less than pole piece thickness, on described lug boss, be provided with a female buckle element, and described pole piece is provided with the public buckle element that matches at the end corresponding to described female buckle element, by the mother on described setting element and the described eccentric polarizing sheet, closely chimeric between the public buckle element is positioned at described eccentric polarizing sheet assembling on the fixed position.
2, a kind of structure of eccentric polarizing sheet assembling location of cathode ray tube electron gun, comprise the assembling fixture that has with three corresponding three locating shafts of through hole of this eccentric polarizing sheet, and the setting element of the described eccentric polarizing sheet of assembling, it is characterized in that, described setting element is a partition, it is a plate, the size of described partition is greater than pole piece, and described partition is provided with the through hole corresponding to three locating shafts, protruded out a lug boss at described partition one end, the height of described lug boss is equal to or less than pole piece thickness, on described lug boss, be provided with a public buckle element, and described pole piece is provided with the female buckle element that matches at the end corresponding to described public buckle element, by the public affairs on described setting element and the described eccentric polarizing sheet, closely chimeric between female buckle element is positioned at described eccentric polarizing sheet assembling on the fixed position.
3, the structure of the eccentric polarizing sheet of cathode ray tube electron gun as claimed in claim 1 or 2 assembling location, described female buckle element is a groove.
4, the structure of the eccentric polarizing sheet of cathode ray tube electron gun as claimed in claim 1 or 2 assembling location, described public buckle element is a projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103024A CN1087868C (en) | 1997-03-13 | 1997-03-13 | Positioning structure of assembling eccentric polarizing sheet of electron gun of cathod ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103024A CN1087868C (en) | 1997-03-13 | 1997-03-13 | Positioning structure of assembling eccentric polarizing sheet of electron gun of cathod ray tube |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00137495 Division CN1119827C (en) | 2000-12-28 | 2000-12-28 | Assembling and positioning structure for eccentric plate in CRT eletron gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1193806A CN1193806A (en) | 1998-09-23 |
| CN1087868C true CN1087868C (en) | 2002-07-17 |
Family
ID=5166518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97103024A Expired - Fee Related CN1087868C (en) | 1997-03-13 | 1997-03-13 | Positioning structure of assembling eccentric polarizing sheet of electron gun of cathod ray tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1087868C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699611B (en) * | 2009-10-23 | 2011-06-22 | 江苏达胜加速器制造有限公司 | Electron gun assembling method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4685891A (en) * | 1984-03-23 | 1987-08-11 | U.S. Philips Corporation | Method of assembling an integrated electron gun system |
| JPS6366819A (en) * | 1986-09-05 | 1988-03-25 | Nec Corp | Electron gun assembling device |
-
1997
- 1997-03-13 CN CN97103024A patent/CN1087868C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4685891A (en) * | 1984-03-23 | 1987-08-11 | U.S. Philips Corporation | Method of assembling an integrated electron gun system |
| JPS6366819A (en) * | 1986-09-05 | 1988-03-25 | Nec Corp | Electron gun assembling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699611B (en) * | 2009-10-23 | 2011-06-22 | 江苏达胜加速器制造有限公司 | Electron gun assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1193806A (en) | 1998-09-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CPT (Fuzhou) Co., Ltd. Assignor: CPT (Bermuda) Co., Ltd. Contract fulfillment period: In October 31, 2007, 5 years Contract record no.: 200210156 Denomination of invention: Structure for assembling and positioning eccentric pole plate of electron gun in cathode ray tube Granted publication date: 20020717 License type: Jiao Cha Record date: 20021231 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.10.31, 5 YEARS Name of requester: CHUNGHWA PICTURE TUBES (FUZHOU) CO., LTD. Effective date: 20021231 |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |