CN2762344Y - Short-range molybdenum foil sealed pulse xenon lamp - Google Patents
Short-range molybdenum foil sealed pulse xenon lamp Download PDFInfo
- Publication number
- CN2762344Y CN2762344Y CN 200420114219 CN200420114219U CN2762344Y CN 2762344 Y CN2762344 Y CN 2762344Y CN 200420114219 CN200420114219 CN 200420114219 CN 200420114219 U CN200420114219 U CN 200420114219U CN 2762344 Y CN2762344 Y CN 2762344Y
- Authority
- CN
- China
- Prior art keywords
- molybdenum foil
- lamp
- sealing
- xenon lamp
- fluorescent tube
- 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 - Lifetime
Links
Images
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The utility model relates to a short-range molybdenum foil sealed pulse xenon lamp; the structure is characterized a molybdenum foil barrel is respectively sealed in both ends of a lamp tube filled with xenon; an electrode is welded at the inner end point of the molybdenum foil barrel; an inflatable quartz air bubble is embedded at a middle section; a lead-wire joint is welded at the outer end point. The utility model is characterized in that the lead-wire joint is a solid cylinder body with three sections of different diameters; the thick section is in point welding in the molybdenum foil barrels; the long middle section is sealed in the lamp tube; the thin section is with an outer connection conducting wire; a single side length at a sealing region is not bigger than 3.6 times of the outer diameter of the quartz air bubble; xenon air pressure in the lamp tube is 380 to 760 torrs; the quartz air bubble is filled with air of 600 to 615 torrs. The thin section of the lead-wire joint is short; a nickel sheet is coated at the side surface of a cylinder of the thin section; the tail end forms a tip and conical shape. The pulse xenon lamp of the utility model has the advantages of short sealing region, high air pressure in the lamp and good tightness performance; in addition, the outer connection conducting wire can be reliably led out under a condition that an ideal position for racking lamps exists.
Description
Technical field
The utility model relates to xenon flash lamp, particularly a kind of short distance molybdenum foil sealed pulse xenon lamp.
Background technology
The minature solide-state laer that is widely used in every field often with small-sized xenon flash lamp as its pump light source.The latter's effect is the electric energy moment that will be stored on the capacitor to be converted into radiant energy, and for guaranteeing that high conversion rate is arranged, the lamp internal gas pressure is higher usually; It must stand bigger current density, up to several thousand the degree the moment internal high temperature, and up to tens the moment internal pressure more than the standard atmospheric pressure.This just requires the fluorescent tube of small-sized xenon flash lamp and other member that the very high mechanical strength and the ability of heat shock resistance should be arranged, and the more important thing is to have good sealing property.Compare with large and medium-sized xenon flash lamp, the sealing-in of small-sized xenon flash lamp requires higher, is embodied in: under the situation than weak point, must guarantee to have good air-tightness at lamp internal gas pressure height and sealing-in section length.In addition, use for the convenience of the user, also will possess reliable rack lamp part.In recent years, be the ultraviolet ray that reduces the pump light source radiation damage to the laser works material, original pure quartz burner is replaced by having the cerium quartz ampoule of mixing that cuts the ultraviolet function, increased the energy that fluorescent tube bears so again, the mechanical strength and the sealing property of finished product have also been had higher requirement.Be applied to the pump light source of the minature solide-state laer of aviation field, the characteristics that not only should have above-mentioned high capacity intensity, high conversion efficiency, also should satisfy more compact structure, whole more miniaturization even the microminiaturized specific (special) requirements of trend, increased the energy that bears on the fluorescent tube unit are so again, therefore, the requirement of mechanical strength to the finished product lamp is also higher.These requirements are reflected in and just are presented as on the process for sealing of making lamp that the sealing-in district is shorter, sealing property improves.
The molybdenum foil sealing technology is extensively adopted in the sealing-in of present small-sized xenon flash lamp, its sealing-in district vertical section structure as shown in Figure 1, very thin individual layer rectangle molybdenum foil 3 is rolled into hollow cylindrical, cylinder center is embedded with the quartzy bubble 4 of the air that fills a standard atmospheric pressure in, the cylinder two ends are with spot welding mode difference connection electrode 2 and pigtail splice 5, electrode 2 is tungsten system electrode, pigtail splice 5 is cylinder molybdenum tubes of hollow, to put the assembly sealing by fusing of postwelding then in fluorescent tube 1, bubble 4 volumetric expansions behind the sealing by fusing, roof pressure molybdenum foil 3 makes molybdenum foil 3 mechanically be close to the inwall of fluorescent tube 1, form the sealing-in district, prevent that effectively xenon is revealed in the lamp; The outstanding advantage of this sealing technology is high temperature resistant.In the xenon lamp course of work, when its internal temperature reaches several thousand when spending, the part heat will be transmitted to the sealing-in district at xenon lamp two ends inevitably in the lamp, and sealing-in district material is warming up to about 1000 ℃.The softening temperature of quartz and metal molybdenum is all more than 1500 ℃, and that is to say can softening transform in the time of 1000 ℃.The sealing-in district that is made of these two kinds of materials still can keep normal shape and good sealability when self temperature reaches 1000 ℃, and then guarantees the xenon lamp operate as normal.Therefore, utilize this kind sealing technology can make the finished product lamp that non-water-cooled is used, this is that other sealing technologies are incomparable.But still there is the deficiency of following three aspects in existing molybdenum foil sealing technology:
The one, molybdenum foil sealing-in district head.For guaranteeing xenon lamp efficient operation for a long time, must strict little leakage speed of controlling xenon in the lamp.Usually practice is thought, when the length in monolateral sealing-in district reaches 5-6 times of quartzy bubble external diameter, could guarantee that the finished product light fixture has good air tightness, and soon leakage rate is controlled in the allowed band; And the die opening of xenon lamp must satisfy the requirement of flash-over characteristic, can not arbitrarily shorten.Therefore adopt the xenon lamp of this long-range molybdenum foil sealing technology, can not satisfy the requirement of further microminiaturization.In general, obtain higher electro-optical efficiency, must improve the air pressure of xenon in the lamp, this is guaranteed that the air-tightness in sealing-in district has increased difficulty again, more need remedy the defective of the easy gas leakage that is caused by lamp internal gas pressure height with bigger sealing-in section length.So just can not realize the microminiaturization of finished product lamp.
The 2nd, the mechanical strength of finished product lamp is not enough.The end that the pigtail splice of finished product lamp is connected with outer conductor is exposed to outside the fluorescent tube, and this is exposed to the part in the atmosphere, is subjected to the effect of water and air easily and oxidation; The end sealing by fusing that pigtail splice and thickness only are connected for the molybdenum foil spot welding of 0.03mm is in quartz burner, and the curtailment of sealing by fusing is protected fragile spot welding position well to utilize quartz burner.Usually the pigtail splice of finished product is a hollow cylindrical molybdenum tube, cylinder cross section and wire bonds, and this small size welding is not really firm.Two positions of above-mentioned molybdenum foil spot welding and wire bonds come off because of being subjected to frequent towing when finished product uses easily.
The 3rd, under the situation that non-water-cooled is used, xenon lamp is difficult for fixing.It is very short that pigtail splice is exposed to the outer part of fluorescent tube, and for the xenon lamp of non-water-cooled, frequent frame built on the sand during installation.Therefore the user as rack lamp part, but bigger pressure can't bear in the sealing-in district of intermediate hollow with the sealing-in district, firmly slightly larger during bracket lamp, fluorescent tube herein will rupture.
Summary of the invention
The technical problems to be solved in the utility model is to improve effectively above-mentioned the deficiencies in the prior art part, the xenon flash lamp of a kind of short distance molybdenum foil sealing-in is provided, this xenon flash lamp not only sealing-in district will be lacked, lamp internal gas pressure height, sealing property is better, and desirable rack lamp part will be arranged, can reliably draw outer conductor.
Technical solution of the present utility model is as follows:
A kind of short distance molybdenum foil sealed pulse xenon lamp, each sealing by fusing one molybdenum foil cylinder in the two ends of an xenon-filled fluorescent tube, inner means of spot welds one electrode of this molybdenum foil cylinder, the stage casing embeds the quartzy bubble of inflation, outer end means of spot welds one pigtail splice, it is characterized in that described pigtail splice is one to have the solid cylinder of three sections different-diameters, its thick section means of spot welds is in described molybdenum foil cylinder, the stage casing is longer, sealing by fusing is in described fluorescent tube, and its thin segment is used for being connected with external wire, and the monolateral length in sealing-in district is not more than 3.6 times of external diameter of quartzy bubble, xenon air pressure in the described fluorescent tube is the 380-760 holder, fills 600-615 holder air in the described quartzy bubble.
The thin segment of described pigtail splice is shorter, and the side of the cylinder of this thin segment coats a nickel sheet, and its end is the cone shape on pinnacle.
The thin segment of described pigtail splice inserts in the described external wire and adopts the gross area soldering to connect, and overlaps a plastic sheath in the periphery of this junction, fills epoxy resin between this plastic sheath and external wire.
Described electrode is the cerium tungsten electrode.
Described fluorescent tube is for mixing the cerium quartz ampoule.
Described quartzy bubble is founded by pure quartz ampoule and is formed.
The xenon flash lamp of the utility model short distance molybdenum foil sealing-in has higher electro-optical efficiency, excellent sealing ability through using proof; Compact internal structure and microminiaturized profile very are adapted at using in the special dimension; The spot welding parts and the outer conductor at lamp two ends are connected firmly, correct tension and torsion in the time of bearing the dress lamp; The rack lamp part of rounding has higher mechanical strength, as long as the two ends rack lamp part is stressed evenly, can stop breakage problem substantially during bracket lamp.
The utility model is described in further detail below in conjunction with embodiment.
Description of drawings
Fig. 1 is the sealing-in district vertical section structure figure of prior art
Fig. 2 is sealing-in of the present utility model district vertical section structure figure
Fig. 3 is the vertical section structure figure that the utility model is connected with outer conductor
Fig. 4 is the discharging light spectrogram of the utility model embodiment 1
Embodiment
The utility model short distance molybdenum foil sealed pulse xenon lamp mainly adopts the molybdenum foil sealing technology, its sealing-in district vertical section structure is as shown in Figure 2: as seen from the figure, the structure of the utility model short distance molybdenum foil sealed pulse xenon lamp is: each sealing by fusing one molybdenum foil cylinder 3 in the two ends of an xenon-filled fluorescent tube 1, inner means of spot welds one electrode 2 of this molybdenum foil cylinder 3, the stage casing embeds the quartzy bubble 4 of inflation, outer end means of spot welds one pigtail splice 6, it is characterized in that described pigtail splice 6 is one to have the solid cylinder of three sections different-diameters, its thick section 61 means of spot welds are in described molybdenum foil cylinder 3, stage casing 62 is longer, sealing by fusing is in described fluorescent tube 1, its thin segment 63 is used for being connected with external wire 10, the monolateral length in sealing-in district is not more than 3.6 times of external diameter of quartzy bubble 4, xenon air pressure in the described fluorescent tube 1 is the 380-760 holder, fills 600-615 holder air in the described quartzy bubble 4.
In other words, serve as conduction and seal member with the individual layer molybdenum foil 3 that is rolled into hollow cylindrical, cylinder center is embedded with a quartzy bubble 4, and the cylinder two ends are spot welding connection electrode 2 and pigtail splice 6 respectively, and the assembly sealing by fusing of some postwelding is in quartz burner 1.Quartzy bubble 4 is fused by pure quartz ampoule and forms, and fluorescent tube 1 is for mixing the cerium quartz burner.Compared with prior art, characteristics of the present utility model are:
Adopt short distance molybdenum foil sealing technology, not only effectively shortened the length overall of finished product lamp, satisfy microminiaturized requirement, and under lamp internal gas pressure condition with higher, still can guarantee excellent sealing ability.Compare with general small-sized xenon lamp, electrode spacing of the present utility model and caliber are littler, and correspondingly, luminous distance is also littler, but the lamp internal gas pressure is higher, so its electro-optical efficiency equals even greater than general small-sized xenon lamp.The lamp internal gas pressure of common small sized xenon lamp is generally 250 holders-450 holders (1 standard atmospheric pressure is 760 holders), and lamp internal gas pressure of the present utility model is increased to 380 holders-760 holders.Under the higher prerequisite of lamp internal gas pressure, the utility model has been broken through the 5-6 that monolateral sealing-in section length in the technology formerly is not less than the bubble external diameter doubly could guarantee bubble-tight theoretical forbidden zone, the utility model is not more than the sealing-in district of 3.6 times of bubble external diameters with monolateral sealing-in section length, and little leakage speed of xenon in the lamp is strict controlled in the allowed band.This point can be accomplished by the institute of the utility model, and key has been to reduce the air pressure in the quartzy bubble.According to prior art, be filled with the air (because air cheapness) of 760 holders in the quartzy bubble, when the assembly sealing by fusing of spot welding is in fluorescent tube 1, be easy to because the control of the time of bubble local heating is improper, make heating place bubble wall softening, and gas strut in the bubble that is expanded rapidly, forms the outward appearance of peanut shape, form the some sealing-in on seal form, this sealing-in is the leakage rate height under lamp internal gas pressure conditions of higher.And the utility model will steep internal gas pressure and reduce to 0.8 standard atmospheric pressure, and about 608 holders facts have proved that this air pressure can effectively avoid forming a some sealing-in, can guarantee that again bubble 4 evenly is expanded to required volume, thereby form the stronger line sealing-in of sealability.
Pigtail splice 6 is processed into the solid special molybdenum rod of thickness inequality, pigtail splice 6 and the vertical section structure that is connected with outer conductor thereof as shown in Figure 3, thick section 61 is used for spot welding and connects molybdenum foil 3, stage casing 62 is long and be wrapped in fully in the quartz burner 1; Thin segment 63 is shorter, and its end is the cone shape on pinnacle, is used to connect lead 10, junction overcoat plastic sheath 8.Thick section 61 accounts for this abnormal shape molybdenum rod overwhelming majority length with the length sum in stage casing 62; this thick section 61 and stage casing 62 two parts all sealing by fusing in fluorescent tube 1; not only avoided the large tracts of land oxidation of pigtail splice 6; and the quartz burner 1 of high rigidity can protect the spot welding position well, improved spot welding position tension, antitorque mechanical strength greatly.Thin segment 63 cylindrical side spot welding nickel sheets 9 utilize the terminal cone that is the pinnacle can insert lead 10 centers apace, then thin segment 63 gross areas are connected with lead 10 scolding tin, and bonding area is bigger than the finished product of technology formerly of identical caliber; The junction periphery puts plastic sheath 8, irritates with epoxy resin 7 in the cover, and like this, outer conductor 10 is more firm with being connected of fluorescent tube 1, the frequent towing in the time of bearing the dress lamp.
Under the situation that non-water-cooled is used, finished product lamp easy for installation, reliable.In proportion, the length of the pigtail splice 6 of the present utility model ratio formerly pigtail splice of technology increases to some extent, and is solid hopkinson bar, and thick section 61 is wrapped in the fluorescent tube 1 with stage casing 62, extremely pays attention to keeping the rounding property of fluorescent tube outward appearance during sealing by fusing.Like this, stage casing 62 has big compression strength with the position of fluorescent tube 1 sealing by fusing, is the desired site of user's bracket lamp.
Embodiment 1
Present embodiment is the small-sized hyperbar that utilizes whole process for sealing of the present utility model to make, the xenon flash lamp of high strength sealing-in, and the quartz burner external diameter is 5mm, electrode spacing 60mm, finished product lamp length overall 124mm; Quartzy bubble external diameter is 2.8mm, and monolateral sealing-in section length is not more than 10mm, and the two ratio is about 1:3.57; Xenon air pressure is 760 holders in the fluorescent tube, and air pressure is 600 holders in the bubble.The sealing-in district vertical section structure figure of present embodiment as shown in Figure 2, wherein electrode 2 is made by cerium tungsten, remaining part is with the description of preamble to Fig. 2.The lead of present embodiment connects vertical section structure figure as shown in Figure 3, and preamble elaborates to Fig. 3, repeats no more herein.
Present embodiment successfully is used as the pump light source of laser radar, storage capacitor 60 μ F operating voltage 930V, and the current peak 230A that passes through, discharge pulsewidth 140 μ S can the 2-85Hz frequency repeat work, obtain satisfactory result in actual use.The discharge spectrum of present embodiment is seen Fig. 4.
Embodiment 2
Present embodiment successfully is used for the pump light source of laser radar configuration.The fluorescent tube external diameter is 7mm, electrode spacing 75mm, finished product lamp length overall 178mm; Xenon air pressure is 380 holders in the lamp, and air pressure is 608 holders in the bubble.Wherein electrode 2 is the cerium tungsten electrode, in actual applications, storage capacitor 100 μ F, operating voltage 1.2KV, the current peak 756A that passes through, discharge pulsewidth 150 μ S can the 2-57Hz frequency repeat work.The xenon flash lamp electro-optical efficiency and the sealing property of present embodiment are all good.
Present embodiment is the air-cooled small-sized xenon flash lamp with the reliable rack lamp part of the utility model.Fluorescent tube 1 external diameter is 6mm, electrode spacing 50mm, finished product length overall 108mm; Xenon air pressure is 600 holders in the lamp, and air pressure is 615 holders in the bubble.Wherein electrode 2 is the cerium tungsten electrode.Present embodiment can be used for the miniature laser of anhydrous cool condition, and when the finished product lamp was installed, the user can utilize the position bracket lamp in solid molybdenum rod stage casing 62, as long as make this position at lamp two ends stressed evenly, synchronous, rack lamp part can not rupture.
Claims (6)
1, a kind of short distance molybdenum foil sealed pulse xenon lamp, each sealing by fusing one molybdenum foil cylinder (3) in the two ends of one xenon-filled fluorescent tube (1), inner means of spot welds one electrode (2) of this molybdenum foil cylinder (3), the stage casing embeds the quartzy bubble (4) of inflation, outer end means of spot welds one pigtail splice (6), it is characterized in that described pigtail splice (6) is one to have the solid cylinder of three sections different-diameters, its thick section (61) means of spot welds is in described molybdenum foil cylinder (3), stage casing (62) is longer, sealing by fusing is in described fluorescent tube (1), its thin segment (63) is used for being connected with external wire (10), the monolateral length in sealing-in district is not more than 3.6 times of external diameter of quartzy bubble (4), xenon air pressure in the described fluorescent tube (1) is the 380-760 holder, fills 600-615 holder air in the described quartzy bubble (4).
2, short distance molybdenum foil sealed pulse xenon lamp according to claim 1 is characterized in that the thin segment (63) of described pigtail splice (6) is shorter, and the side of the cylinder of this thin segment (63) coats a nickel sheet (9), and its end is the cone shape on pinnacle.
3, short distance molybdenum foil sealed pulse xenon lamp according to claim 2, it is characterized in that described pigtail splice (6) thin segment (63) inserts in the described external wire (10) and adopts the gross area soldering to connect, overlap a plastic sheath (8) in the periphery of this junction, between this plastic sheath (8) and external wire (10), fill epoxy resin (7).
4, short distance molybdenum foil sealed pulse xenon lamp according to claim 1 is characterized in that described electrode (2) is the cerium tungsten electrode.
5, short distance molybdenum foil sealed pulse xenon lamp according to claim 1 is characterized in that described fluorescent tube (1) is a quartz burner, or mixes the cerium quartz burner.
6, short distance molybdenum foil sealed pulse xenon lamp according to claim 1 is characterized in that described quartzy bubble (4) is fused by pure quartz ampoule to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114219 CN2762344Y (en) | 2004-12-15 | 2004-12-15 | Short-range molybdenum foil sealed pulse xenon lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114219 CN2762344Y (en) | 2004-12-15 | 2004-12-15 | Short-range molybdenum foil sealed pulse xenon lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762344Y true CN2762344Y (en) | 2006-03-01 |
Family
ID=36095461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114219 Expired - Lifetime CN2762344Y (en) | 2004-12-15 | 2004-12-15 | Short-range molybdenum foil sealed pulse xenon lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762344Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208324A (en) * | 2010-03-30 | 2011-10-05 | 中国科学院上海光学精密机械研究所 | Pulse xenon lamp lead-out electrode structure and installation method thereof |
| CN101877297B (en) * | 2009-04-30 | 2012-02-08 | 北京滨松光子技术股份有限公司 | Spot welding technology of vibration-proof photomultiplier lead |
| CN113300130A (en) * | 2021-06-24 | 2021-08-24 | 国网上海市电力公司 | High-temperature superconducting cable current lead structure and design method thereof |
-
2004
- 2004-12-15 CN CN 200420114219 patent/CN2762344Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877297B (en) * | 2009-04-30 | 2012-02-08 | 北京滨松光子技术股份有限公司 | Spot welding technology of vibration-proof photomultiplier lead |
| CN102208324A (en) * | 2010-03-30 | 2011-10-05 | 中国科学院上海光学精密机械研究所 | Pulse xenon lamp lead-out electrode structure and installation method thereof |
| CN113300130A (en) * | 2021-06-24 | 2021-08-24 | 国网上海市电力公司 | High-temperature superconducting cable current lead structure and design method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0735569A2 (en) | Fluorescent lamp | |
| CN1081786A (en) | High-voltage gas discharging light | |
| CN2762344Y (en) | Short-range molybdenum foil sealed pulse xenon lamp | |
| CN1292450C (en) | Pulse xenon lamp sealed by short distance molybdenum foil | |
| US20120161622A1 (en) | High-pressure discharge lamp with starting aid | |
| US20020047522A1 (en) | Discharge lamp, method for producing the same and lamp unit | |
| EP2221851A1 (en) | Discharge lamp | |
| CN1213457C (en) | Fluorescent light whose discharge tube is bent basically in a plane | |
| EP0168031B1 (en) | Electrical lamp | |
| CN1531382A (en) | Dielectric potential barrier discharge low voltage lamp | |
| CN1146013C (en) | Incandescent lamp with reflection coating | |
| CN1213458C (en) | High pressure discharge lamp | |
| CN1042804A (en) | Halogen incandescent lamp and manufacture method thereof | |
| CN1719576B (en) | Dielectric barrier discharge lamp | |
| CN1729551A (en) | High-pressure discharge lamp, having a seal comprising a gas-filled cavity | |
| US7106003B2 (en) | Dielectric barrier discharge lamp with pinch seal | |
| CN1255852C (en) | Low pressure discharge lamp with double screw shape | |
| CN1336000A (en) | Discharge lamp comprising an electrode support | |
| WO2008119606A1 (en) | Component for an electric lamp with outer bulb | |
| CN1081020A (en) | Low-pressure discharge lamp | |
| EP2249374B1 (en) | Automotive discharge lamp | |
| CN216354067U (en) | Structure of excimer lamp capillary | |
| CN2859206Y (en) | Vehicle-mounted two-arc pipe integrated xenon metal halogen lamp | |
| CN1009884B (en) | Low-pressure mercury vapour discharge lamp | |
| CN2359801Y (en) | Large-caliber tungsten and quartz transition sealed pulse xenon lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20041215 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20041215 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |