CN201274280Y - Electrode packaging structure of gas discharge lamp - Google Patents
Electrode packaging structure of gas discharge lamp Download PDFInfo
- Publication number
- CN201274280Y CN201274280Y CNU2008201162037U CN200820116203U CN201274280Y CN 201274280 Y CN201274280 Y CN 201274280Y CN U2008201162037 U CNU2008201162037 U CN U2008201162037U CN 200820116203 U CN200820116203 U CN 200820116203U CN 201274280 Y CN201274280 Y CN 201274280Y
- Authority
- CN
- China
- Prior art keywords
- electrode
- discharge lamp
- utility
- pyrex
- model
- Prior art date
- 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
Links
- 238000004806 packaging method and process Methods 0.000 title abstract description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 39
- 239000010937 tungsten Substances 0.000 claims abstract description 39
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000005297 pyrex Substances 0.000 claims abstract description 24
- 239000003870 refractory metal Substances 0.000 claims abstract description 5
- 238000005245 sintering Methods 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 6
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 4
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000012536 packaging technology Methods 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
A gas discharge lamp comprises a lamp tube and an electrode packaged at the end part of the lamp tube, wherein the lamp tube adopts a Pyrex tube, the electrode is made of refractory metal, the Pyrex tube and the electrode are directly packaged into a whole, and the diameter of the electrode is less than 0.5 mm. Preferably, the diameter of the electrode is 0.43mm or less. Adopt the utility model discloses a direct packaging structure of electrode and method, because the diameter of tungsten pole sets up to be less, its thermal expansion volume just also greatly reduced overall to the phenomenon of the emergence fracture between electrode and the fluorescent tube has been avoided. And, because the utility model discloses a link of transition glass has been removed from to the direct packaging technology, and single Pyrex pipe body is even, and no seam, body material purity is high, has improved the reliability and the life of fluorescent tube greatly, has reduced the miscellaneous gas of fluorescent tube for the performance of fluorescent tube further improves. The package of the utility model is also suitable for other metal and glass packaged appliances.
Description
Technical field
The utility model relates to gaseous discharge lamp electrode package structure, relates in particular to the direct encapsulating structure of a kind of gaseous discharge lamp with refractory metal electrode and low-coefficient glass.
Background technology
Existing gaseous discharge lamp is photoflash lamp for example, as shown in Figure 1, and the electrode 2 that it comprises fluorescent tube 1 and is encapsulated in fluorescent tube 1 end.Fluorescent tube 1 for example adopts sends Simon Rex (Pyrex) pipe, and its advantage is that resistance to elevated temperatures is good, and cost is lower than quartz glass.Electrode 2 for example adopts the tungsten bar.But because the coefficient of expansion of Pyrex pipe (is about 32 * 10
-7) (be about 45 * 10 with the coefficient of expansion of tungsten bar
-7) difference is too big, directly be packaged together to cause cracking or gas leakage easily, so existing method is a transitional glass of making (claiming that usually tungsten connects glass) 3 between Pyrex pipe and tungsten bar.That is, tungsten bar sintering is connect on glass at tungsten, again tungsten is connect glass and the Pyrex pipe is sealed the formation fluorescent tube.Because connecing the coefficient of expansion of glass (Germany claims 8487 glass, Japan to claim BX38 glass, China to claim 95 material), tungsten is about 38 * 10
-7, be located substantially on Pyrex pipe and tungsten bar between the two, so between plays cushioning effect preferably, the fluorescent tube that has reduced because of the too big appearance easily of the expansion coefficient difference between fluorescent tube and the electrode damages phenomenon.
Yet the employing of transitional glass 3 has increased the manufacture difficulty of fluorescent tube undoubtedly, and transitional glass is different with the thermal coefficient of expansion that Pyrex manages both, and sealing-in between the two is if any the improper problems such as cracking or gas leakage that also can cause.
Summary of the invention
The purpose of this utility model is to overcome the defective that prior art exists, and direct encapsulating structure and the method for packing thereof of a kind of gaseous discharge lamp with refractory metal electrode and low-coefficient glass are provided.
According to an aspect of the present utility model, a kind of gaseous discharge lamp is provided, the electrode that comprises fluorescent tube and be encapsulated in lamp tube end, described fluorescent tube adopts the Pyrex pipe, described electrode is made by refractory metal, and described Pyrex pipe directly is packaged into one with described electrode, and the diameter of described electrode is below the 0.5mm.
According to gaseous discharge lamp of the present utility model, described electrode is made up of the tungsten bar.
According to gaseous discharge lamp of the present utility model, the diameter of described electrode is below the 0.43mm.
According to gaseous discharge lamp of the present utility model, sintering has the Pyrex bead on the outer peripheral face of described electrode.
According to gaseous discharge lamp of the present utility model, the surface of described tungsten bar has by adding the tungsten oxide layer of thermosetting.
Description of drawings
Be described in further detail hereinafter with reference to the electrode package structure and the method for packing thereof of drawings and Examples to gaseous discharge lamp of the present utility model, identical reference number is represented identical or corresponding parts among the figure.Other purpose, characteristics and advantage of the present utility model will become clearer in the following description.
Fig. 1 is the schematic diagram of the gaseous discharge lamp electrode package structure of expression prior art.
Fig. 2 is the electrode package structural representation of expression according to the gaseous discharge lamp of an embodiment of the present utility model.
Fig. 3 is the electrode package process schematic representation of expression according to the gaseous discharge lamp of an embodiment of the present utility model.
Embodiment
The internal stress state of the gaseous discharge lamp of prior art shown in Figure 1 (that is, when the processing temperature of electrode package is cooled to normal temperature, connecing the composition surface of glass 3, the difference of the amount of contraction of these two kinds of materials at tungsten bar 2 and tungsten) can be represented with following formula:
D
o(W—G)(T—t
o) (1)
Wherein, D
oBe the diameter of the tungsten bar of prior art, unit is mm; W is the thermal coefficient of expansion of tungsten bar, is generally 45 * 10
-7G is the thermal coefficient of expansion that tungsten connects glass, is generally 38 * 10
-7Processing temperature when T is electrode package is generally 700 degrees centigrade; t
0Be normal temperature.Produce proof in enormous quantities, as the diameter D of tungsten bar
oWhen being taken as 1mm, satisfy that the gaseous discharge lamp of above-mentioned condition lessly ftractures, gas leakage or explosion phenomenon.
Gas discharge modulated structure of the present utility model shown in Figure 2 is that its internal stress state can be represented with following formula (2) with electrode (tungsten bar) 2 and fluorescent tube 1 (Pyrex pipe) diameter encapsulation together:
D(W—P)(T—t
0) (2)
Wherein, D is the diameter of tungsten bar of the present utility model, and unit is mm; W is the thermal coefficient of expansion of tungsten bar, is generally 45 * 10
-7P is the thermal coefficient of expansion of Pyrex, is generally 32 * 10
-7Processing temperature when T is electrode package is generally 700 degrees centigrade; t
oBe normal temperature.Diameter D when the tungsten bar
oBe taken as 1mm, and make formula (1) equate that with formula (2) the diameter D that can obtain tungsten bar in example of the present utility model is 0.538mm.That is to say phenomenons such as long as the diameter of tungsten bar is below 0.5mm, the gaseous discharge lamp that satisfies above-mentioned other condition can not ftracture, gas leakage or explosion.Therefore, in an embodiment of the present utility model, the diameter of tungsten bar is arranged on below the 0.5mm.Under the preferable situation, the diameter of the tungsten bar of the gaseous discharge lamp of prior art can be accomplished 0.8mm, therefore, makes under following formula (1) and the situation that (2) equate, and the diameter D that can obtain the tungsten bar in example of the present utility model is preferably below 0.43mm.So in another preferred embodiment of the present utility model, the diameter of tungsten bar is arranged on below the 0.43mm.
Fig. 3 is the electrode package process schematic representation of expression according to the gaseous discharge lamp of an embodiment of the present utility model.With reference to Fig. 3, step (1), Pyrex bead 4 of sintering on the outer peripheral face of tungsten bar 2.For example, can on tungsten bar 2, put the Pyrex bead 4 of a through hole earlier, and then with fire or electric heating 5 with its sintering on tungsten bar 2.Step (2), with sintering the tungsten bar 2 of Pyrex bead be arranged on the end of Pyrex pipe 1, with fire or electric heating together with both direct sinterings.Step (3) is with the fluorescent tube behind sintering cutting pipe (not shown) the formation final finished that truncates.Wherein, step (1) for example can be by adding a tungsten oxide layer of thermosetting (not shown) on the surface of tungsten bar before being sintered to Pyrex bead 4 on the tungsten bar 2, and this tungsten oxide layer can be combined closely with tungsten, can engage with the Pyrex glassy phase again.In addition, step (2) also can be carried out in being lower than an atmospheric inert gas.
Adopt direct encapsulating structure of electrode of the present utility model and method, because the diameter of tungsten bar is provided with lessly, its thermal expansion amount also just reduces generally greatly, thereby has avoided taking place between electrode and the fluorescent tube phenomenon of cracking.According to test, be 1.5mm for diameter, pipe range is the flash lamp tube of 18mm, adopts traditional tungsten to connect the technology of glass, leak to dodge and the phenomenon of boosted voltage occurs having dodged just to have after 1000 times; And adopting the technology of direct encapsulation of the present utility model, still no abnormal phenomenon takes place after having dodged 7000 times.And because the link that direct packaging technology of the present utility model has been removed transitional glass from, single Pyrex pipe body is even, no seam, body material purity height, the reliability and the useful life of having improved fluorescent tube greatly, reduce the assorted gas of fluorescent tube, made the performance of fluorescent tube further improve.
Though being the example that is encapsulated as with electrode in the gaseous discharge lamp and glass, above embodiment is described,, similarly encapsulation also is applicable to other the metal and the utensil of glass packaging.According to design of the present utility model, those skilled in the art can make various modifications and conversion to this, but they all belong to scope of the present utility model.
Claims (5)
1. gaseous discharge lamp, the electrode that comprises fluorescent tube and be encapsulated in lamp tube end, described fluorescent tube adopt the Pyrex pipe, described electrode is made by refractory metal, it is characterized in that described Pyrex pipe directly is packaged into one with described electrode, the diameter of described electrode is below the 0.5mm.
2. gaseous discharge lamp as claimed in claim 1 is characterized in that described electrode is made up of the tungsten bar.
3. gaseous discharge lamp as claimed in claim 1 or 2 is characterized in that, the diameter of described electrode is below the 0.43mm.
4. gaseous discharge lamp as claimed in claim 1 or 2 is characterized in that sintering has the Pyrex bead on the outer peripheral face of described electrode.
5. gaseous discharge lamp as claimed in claim 2 is characterized in that, the surface of described tungsten bar has by adding the tungsten oxide layer of thermosetting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201162037U CN201274280Y (en) | 2008-05-15 | 2008-05-15 | Electrode packaging structure of gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201162037U CN201274280Y (en) | 2008-05-15 | 2008-05-15 | Electrode packaging structure of gas discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201274280Y true CN201274280Y (en) | 2009-07-15 |
Family
ID=40884622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201162037U Expired - Fee Related CN201274280Y (en) | 2008-05-15 | 2008-05-15 | Electrode packaging structure of gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201274280Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198999A (en) * | 2013-04-28 | 2013-07-10 | 上海大愚光源科技有限公司 | Pulse xenon lamp adopting one-step matching sealing process |
| CN104867798A (en) * | 2014-02-25 | 2015-08-26 | 上海亚尔光源有限公司 | Method for manufacturing electrode used by metal halide lamp |
| CN105810553A (en) * | 2015-01-15 | 2016-07-27 | 优志旺电机株式会社 | Both-end sealed type short arc flash lamp |
| CN105914127A (en) * | 2015-02-19 | 2016-08-31 | 优志旺电机株式会社 | Short arc type flash lamp with both ends sealed |
-
2008
- 2008-05-15 CN CNU2008201162037U patent/CN201274280Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198999A (en) * | 2013-04-28 | 2013-07-10 | 上海大愚光源科技有限公司 | Pulse xenon lamp adopting one-step matching sealing process |
| CN103198999B (en) * | 2013-04-28 | 2015-12-02 | 上海德础科技有限公司 | The xenon flash lamp of a kind of employing one matched seal technique |
| CN104867798A (en) * | 2014-02-25 | 2015-08-26 | 上海亚尔光源有限公司 | Method for manufacturing electrode used by metal halide lamp |
| CN105810553A (en) * | 2015-01-15 | 2016-07-27 | 优志旺电机株式会社 | Both-end sealed type short arc flash lamp |
| CN105810553B (en) * | 2015-01-15 | 2019-03-19 | 优志旺电机株式会社 | Both ends closed type short arc flash lamp |
| CN105914127A (en) * | 2015-02-19 | 2016-08-31 | 优志旺电机株式会社 | Short arc type flash lamp with both ends sealed |
| CN105914127B (en) * | 2015-02-19 | 2019-03-19 | 优志旺电机株式会社 | Both ends closed type short arc flash lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103474831B (en) | A kind of glass sintering high-temperature high-voltage sealing electric connector | |
| CN201274280Y (en) | Electrode packaging structure of gas discharge lamp | |
| CN105449420B (en) | A kind of elongated hole glass sealing spininess electric connector and preparation method thereof | |
| JPH0542769B2 (en) | ||
| CN106679835B (en) | A kind of armored thermocouple sensor | |
| US7710039B2 (en) | Compact fluorescent lamp and method for manufacturing | |
| JP2001076620A (en) | Manufacture of ceramic arc tube | |
| CN101487742B (en) | Temperature sensor | |
| CN1394353A (en) | High-pressure discharge lamp | |
| CN101093782A (en) | Sodium lamp in low pressure | |
| EP0011993A1 (en) | Electric discharge lamps | |
| CN101459031B (en) | Electrode assembly, electric arc tube special for ceramic method halide lamp, and manufacturing method thereof | |
| CN2520576Y (en) | High-temp. high-voltage lead device | |
| CN204391030U (en) | A kind of earthenware fuse | |
| CN110303298A (en) | A kind of composite wick plume manufacturing process | |
| CN102097281A (en) | UV generator and manufacturing process thereof | |
| CN102637764B (en) | Combined packaging structure available for working at profound hypothermia for detectors, and manufacturing method of combined packaging structure | |
| CN101373698B (en) | Combined HID electric arc tube | |
| CN101459030A (en) | Ceramic method halide lamp, electrode and electric arc tube thereof, and manufacturing method for the electric arc tube | |
| CN102881555A (en) | Novel ceramic metal halogen lamp | |
| CN206627399U (en) | Particulate matter sensors | |
| US4038020A (en) | Photoflash lamp | |
| WO2009038858A2 (en) | High intensity discharge lamp having composite leg | |
| US4295075A (en) | Arc discharge lamp having ceramic arc tube | |
| US8299709B2 (en) | Lamp having axially and radially graded structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20160515 |