CN1447368A - Omni range evapo transpiration type suction unit - Google Patents
Omni range evapo transpiration type suction unit Download PDFInfo
- Publication number
- CN1447368A CN1447368A CN 03115392 CN03115392A CN1447368A CN 1447368 A CN1447368 A CN 1447368A CN 03115392 CN03115392 CN 03115392 CN 03115392 A CN03115392 A CN 03115392A CN 1447368 A CN1447368 A CN 1447368A
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- China
- Prior art keywords
- evapo
- suction unit
- transpiration
- getter material
- annular groove
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Abstract
An omni range evapo transpiration type suction unit includes the metal carrier with annular flute and evapo transpiration type getter material. The method carrier through metal bracket is fixed on the base plate of the vacuum display device. There are holes in outside openings along radial direction as well as inside, inner and outer faces in radial direction of the annular flute. In the unit, the opening faces are not directly faced to the upper plate. When evapo transpiration, getter material is directly transpired out from the opening faces in gap faced between the upper and lower plate, so as to increase the transpiring area markedly. Comparing with general suction unit, the transpiring area of the invented sunction unit is increase to 3-20 times. Moreover, the film layer of getter material transpired does not caused too thick to be separated.
Description
Technical field
The present invention relates to a kind of getter device of eliminating unfavorable gas in vacuum tank or the vacuum electron device, the evapotranspire getter device that particularly a kind of planar vacuum display device is used.
Background technology
The main effect of evapotranspire getter device is: inhale and remove to bleed and seal the part in back device inside residual gas and the device, the gas that material discharges again, with raising component vacuum degree, and keep the vacuum degree of device at storage and duration of work.
Existing evapotranspire getter device, it as U.S. Pat 3719433 and application number 98123662.6 Chinese patent, it is to have the becket of annular groove as carrier, after evenly mixing by a certain percentage with barium aluminum metal powder, the annular groove that is pressed into becket through high pressure is made evapotranspire getter device, wherein becket makes progress recording quantity as evapotranspiring the hole, and three sealings fully in addition, the evapotranspire getter device of this structure only be suitable for evapotranspiring the more greatly device in space is as cathode ray tube (CRT).If it is placed in the planar vacuum display device uses, it causes barium to be accumulated near the getter ring easily and causes the inhomogeneous of rete in the close gap of planar vacuum display device during evaporate both barium so; And in the close gap of planar vacuum display device, the effective area of the gettering material rete that actual evapotranspiration obtains is too little, has reduced the inspiratory effects that this device produces, and even is not enough to finish due air-breathing function in the flat-panel display device of large-screen; In the planar vacuum display device, the effective area of the gettering material rete that obtains owing to evapotranspiring is too little, easily causes near the too thick barium film sedimentary deposit of formation getter device, may peel off in the work afterwards and isolate fragment, thereby influence the function of device.
Summary of the invention
In order to overcome above-mentioned deficiency, the object of the present invention is to provide a kind of improved evapotranspire getter device, particularly a kind of effective air-breathing area is big, the barium-extracting ratio height, the distribution of barium film is the omnirange evapotranspire getter device relatively uniformly.
Purpose of the present invention can realize by following technical proposals.
The present invention comprises the metallic carrier that has annular groove and places the interior evaporable getter material of its annular groove, this metallic carrier is fixed on the substrate of vacuum display device by metallic support, it is characterized in that radially outer openings of this annular groove, radially inner side and perforate up and down.
The annular groove opening part of described metallic carrier is connected with the reflector of frustum.
The present invention is because annular groove outer openings radially, radially inner side and perforate up and down, make the barium evaporation thing radially directly to evapotranspire, be deposited on flat board up and down again, thereby form the air-breathing rete of larger area from the outer openings of carrier towards the gap of flat-panel display device.Because it is the carrier openings end is towards upper flat plate or down dull and stereotyped, thereby can not cause gettering material to be accumulated in a large number near the getter device, also blocked up and separate with regard to being difficult for causing rete.This device is not only simple in structure, and the high frequency that can the utilize existing evapotranspire getter device equipment that the evapotranspires larger area gettering material rete that in the very little planar vacuum display device in gap, evapotranspires out more equably, mounting technique also with the mounting technique compatibility of existing evapotranspire getter device, therefore, this device has advantages such as equipment cost is low, production technology is simple simultaneously.
Description of drawings
Fig. 1 is a main cutaway view of the present invention.
Fig. 2 is a vertical view of the present invention.
Embodiment
As shown in Figures 1 and 2, the present invention is made up of metallic carrier 4 and evaporable getter material 3, metallic carrier 4 is a kind of ring-type and the conduction heatproof object that has groove, its annular groove is outer openings radially, radially inner side reaches opens several little hole slots up and down, evaporable getter material 3 is compound, alloys of barium, aluminium, nickel and barium, aluminium, nickel formation, and this evaporable getter material 3 places in the annular groove.In order to be controlled at film forming direction and the form in the process of evapotranspiring better, can connect a taper type reflector 2 at the opening part of annular groove, metallic carrier 4 is fixed in down on dull and stereotyped 6 by thin metallic support 5.The opening surface of carrier is not directly towards upper flat plate 1 in this device, and when evapotranspiring, gettering material directly steams from the opening surface in gap between upper and lower dull and stereotyped 1,6, and the area that evapotranspires obviously increases.The gettering material rete that uses apparatus of the present invention to evapotranspire out can not cause sunburner and separate and come off, and 3 to 20 times of the evapotranspire area of the area that evapotranspires when being about evapotranspire getter device commonly used and placing equally.
Claims (2)
1. omnirange evapotranspire getter device, comprise the metallic carrier (4) that has annular groove and place the interior evaporable getter material (3) of its annular groove, this metallic carrier (4) is fixed on the substrate (6) of vacuum display device by metallic support (5), it is characterized in that radially outer openings of this annular groove, radially inner side and perforate up and down.
2. according to the described omnirange evapotranspire getter device of claim 1, it is characterized in that the annular groove opening part at metallic carrier (4) is connected with the reflector (2) of frustum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031153925A CN1326178C (en) | 2003-02-14 | 2003-02-14 | Omni range evapo transpiration type suction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031153925A CN1326178C (en) | 2003-02-14 | 2003-02-14 | Omni range evapo transpiration type suction unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1447368A true CN1447368A (en) | 2003-10-08 |
| CN1326178C CN1326178C (en) | 2007-07-11 |
Family
ID=28050431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031153925A Expired - Fee Related CN1326178C (en) | 2003-02-14 | 2003-02-14 | Omni range evapo transpiration type suction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1326178C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492811B (en) * | 2009-02-20 | 2012-01-25 | 电子科技大学 | Self-air-suction vacuum plating method |
| CN111180294A (en) * | 2018-11-09 | 2020-05-19 | 烟台艾睿光电科技有限公司 | Processing substrate and processing technology of getter film |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1246785B (en) * | 1991-04-16 | 1994-11-26 | Getters Spa | TEMPORARY PROTECTION CONTAINER FOR A GETTER MATERIAL |
| JPH09231918A (en) * | 1996-02-23 | 1997-09-05 | Futaba Corp | Double-sided getter |
| IT1295896B1 (en) * | 1997-10-30 | 1999-05-28 | Getters Spa | Evaporable getter device with improved deflector |
| JP3492299B2 (en) * | 2000-07-28 | 2004-02-03 | 松下電器産業株式会社 | Vacuum container and display device |
| CN2609167Y (en) * | 2003-02-14 | 2004-03-31 | 厦门火炬福大显示技术有限公司 | All direction evapotranspire type air absorber |
-
2003
- 2003-02-14 CN CNB031153925A patent/CN1326178C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492811B (en) * | 2009-02-20 | 2012-01-25 | 电子科技大学 | Self-air-suction vacuum plating method |
| CN111180294A (en) * | 2018-11-09 | 2020-05-19 | 烟台艾睿光电科技有限公司 | Processing substrate and processing technology of getter film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1326178C (en) | 2007-07-11 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20070711 Termination date: 20170214 |