CN101882560B - Efficient ceramic lamp - Google Patents
Efficient ceramic lamp Download PDFInfo
- Publication number
- CN101882560B CN101882560B CN 201010196099 CN201010196099A CN101882560B CN 101882560 B CN101882560 B CN 101882560B CN 201010196099 CN201010196099 CN 201010196099 CN 201010196099 A CN201010196099 A CN 201010196099A CN 101882560 B CN101882560 B CN 101882560B
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- China
- Prior art keywords
- welding groove
- conducting rod
- electrode
- discharge cavity
- pipeline section
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/366—Seals for leading-in conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The invention discloses an efficient ceramic lamp, which comprises a discharging chamber, electrode tubes arranged at the two sides of the discharging chamber, and electrode assemblies extending into the discharging chamber through the electrode tubes, wherein the electrode tube comprises an inner tube section and a welding groove which are connected with each other, and the inner tube section is close to the discharging chamber; the welding groove is positioned on the end face, and the inner diameter of the welding groove is larger than that of the inner tube section; the welding groove realizes the gas-proof sealing of the discharging chamber by filling solder, and the electrode assembly comprises a tungsten mandrel, a conducting rod and a lead or a conducting tube which are sequentially connected; the tungsten mandrel extends into the discharging chamber, and the conducting rod is positioned at the inner tube section; and the outer diameter of the conducting rod is equal to the inner diameter of the inner tube section, and the lead is connected with the tail end of the conducting rod and penetrates through the solder in the welding groove to extend out of the electrode tube, or the conducting tube penetrates through the solder in the welding groove and extends out of the electrode tube to be connected with the lead. The invention effectively improves luminous efficiency and sealing effect.
Description
Technical field
The invention belongs to ceramic light source field, relate in particular to a kind of efficient ceramic lamp.
Background technology
The ceramic arc tubular construction is directly connected to process for sealing.Sealing-in is the key technology of ceramic discharge light source, and the quality of sealing-in is directly connected to performance and the life-span of electric arc tube.the sealing technology of ceramic discharge tube is different from quartz, quartz metal halide lamp is to shrink sealing-in or compression sealing-in by melting quartz and electrode or electrode assemblie, pottery should not melt after moulding, pottery is to fill pottery by glass solder to complete with the gap of electrode with the sealing-in of electrode or electrode assemblie, as shown in Figure 1, comprising discharge cavity 6, be located at its two end electrodes pipe 2 and be plugged in the interior electrode assemblie of electrode tube 2, electrode assemblie comprises the electrode tip that is positioned at discharge cavity 5 that connects successively, molybdenum filament 3 and niobium pipe 1, welding is realized in the gap 4 that scolder flows between electrode tube 2 and electrode assemblie.
Accomplish air-tightness completely, main sealing technology is to be two capillaries with the ceramic discharge tube pin design at present, forms little gap between its internal diameter and electrode assemblie.In the sealing-in process, glass solder and ceramic discharge tube and electrode are together heated.The fusing point of glass solder is lower than the softening point of pottery, and good mobility is arranged after fusing, and then is penetrated in the gap of ceramic capillary and electrode assemblie.Complete after cooling the sealing-in of earthenware.The present this sealing technology of completing in capillary of the nearly all whole employings of ceramic gold-halogen lamp.
Sealing-in was divided into for two steps: the first step, and with the first front cover end of top description, i.e. an envelope.Then inflation, add metal halide pill and mercury, in the envelope other end, i.e. two envelopes.
The occupied state of scolder in ceramic capillary and electrode assemblie gap, as depth of cracking closure, uniformity, tightness comprises the materials behavior of scolder itself, is to guarantee that the key of ceramic lamp quality is also difficult point.Because it is directly connected to the air-tightness of ceramic lamp.Yet in this kind hermetically-sealed construction, glass solder is arranged in the gap of capillary and electrode assemblie, in case electric arc tube when work, the luminescent substance in discharge cavity infiltrates the gap, and at high temperature reacts with glass solder and cause luminescent substance loss and the sealing of infringement scolder.And this kind sealing technology is very complicated.
Summary of the invention
For the shortcoming of prior art, the purpose of this invention is to provide that a kind of luminous efficiency is high, the efficient ceramic lamp of good sealing effect.
For achieving the above object, technical scheme of the present invention is: a kind of efficient ceramic lamp, comprise discharge cavity, be located at the electrode tube on discharge cavity both sides and stretch into electrode assemblie in discharge cavity by electrode tube, this electrode tube comprises interior pipeline section and the welding groove that is connected, in being somebody's turn to do, pipeline section is near discharge cavity, welding groove is positioned at the end, and the interior pipeline section of the internal diameter of welding groove is large, and welding groove is realized the gas-tight seal of discharge cavity by filling scolder.
In this programme, adopt in the end of electrode tube and form a welding groove structure, the mouth of pipe is transferred to by the electrode tube wall in sealing-in position in the past, the diameter of the mouth of pipe is larger, greatly facilitates to put scolder and complete sealing-in.
And scolder substantially melts and completes sealing-in at welding groove, and does not need to complete sealing-in by the quite long electrode tube wall that flow to.
In addition, further from the high arc temperature district, the length of electrode tube can correspondingly reduce scolder, helps some to the shorter and smaller application of electric arc tube yardstick requirement compared with the technique of welding in prior art.
The cold junction position of this scheme can effectively be controlled forward, near the thermal source part, has improved cold junction temperature due to more, guarantees the operating pressure of light source.
Further, this electrode assemblie comprises tungsten plug, conducting rod and the lead-in wire that is connected successively, this tungsten plug stretches in discharge cavity, this conducting rod is positioned at pipeline section, and the external diameter of conducting rod is suitable with the internal diameter of interior pipeline section, and the scolder that is connected with the conducting rod end and passes in welding groove that goes between stretches out outside electrode tube.
Perhaps, this electrode assemblie comprises tungsten plug, conducting rod and the contact tube that is connected successively, this tungsten plug stretches in discharge cavity, this conducting rod is positioned at pipeline section, and the external diameter of conducting rod is suitable with the internal diameter of interior pipeline section, and this contact tube is connected with the conducting rod end and passes scolder in welding groove and stretch out the outer and lead-in wire of electrode tube and join.
The scolder that is connected with the conducting rod end and passes in welding groove that goes between stretches out outside electrode tube.There is no the function of welding due to the electrode tube inwall, electrode tube and electrode assemblie can reduce the gap as much as possible, the loss that brings to stop that mercury and halide enter the electrode tube gap.
Further, this conducting rod is cermet rod.Mainly in interior pipeline section, its function is for carrying electric current and effectively stopping the conduction of heat due to cermet rod part.Add a lead-in wire, be used for joining with external circuit.The coefficient of expansion of this cermet rod and electrode tube are very approaching, can effectively avoid because the coefficient of expansion of electrode tube or conducting rod is inconsistent, and the electrode tube that causes break or has the gap.Less gap has prevented effectively that luminescent substance such as halide and mercury from entering the gap and the loss of the luminescent substance that brings and the light efficiency that causes thus lower and the variation of the color of light.
This conducting rod end is provided with the boss structure that coordinates the location with welding groove.During sealing-in, electrode assemblie is injected in electrode tube, effect due to boss structure, electrode assemblie can be positioned at predeterminated position well, after plug-in mounting, then filler is filled on solder bath, in this scheme, because scolder is not to be filled in the gap of electrode assemblie and electrode tube, can effectively reduce the complexity of sealing technology.
This boss structure top is formed with the several conical surface, makes the easier wetting welding groove of scolder and electrode.
Further, come off by solder bath after aging for preventing scolder, this welding groove is an outside throat structure, and throat structure applies an axial pressure to the overall structure of scolder, can prevent effectively that it from coming off.
Further, this welding groove can be frustum cone structure or spherical structure.
Similarly, also can be provided with on this welding groove side some recessed/the tongue structure, groove/tongue structure has grasp to scolder integral body, can prevent effectively that scolder from being come off by solder bath after aging.
Further, the internal diameter size of this welding groove is in 1 to 4 millimeter scope, and the degree of depth is at the 1-4 millimeter, and interior pipeline section internal diameter is in 0.4-1.5 millimeter scope.
The positive camber of this discharge cavity and the junction of electrode tube are the smooth transition structure, avoid acute angle curvature, to reduce the stress of ceramic lamp.
The present invention compared with prior art has following advantage and beneficial effect:
The present invention is by forming a welding groove structure in the end of electrode tube, the mouth of pipe is transferred to by the electrode tube wall in sealing-in position in the past, and the diameter of the mouth of pipe is larger, greatly facilitates to put scolder and complete sealing-in.
Description of drawings
Fig. 1 is the profile of prior art ceramic lamp;
Fig. 2 is the profile of ceramic lamp lamp housing of the present invention;
Fig. 3 is not for the profile of the ceramic lamp of boss structure;
Fig. 4 is that boss structure is the profile of the ceramic lamp of circular platform type;
Fig. 5 is that boss structure is the profile of square ceramic lamp;
Fig. 6 is the profile of the ceramic lamp of embodiment 2.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.
Embodiment 1
As extremely shown in Figure 5 in Fig. 2, the invention discloses a kind of efficient ceramic lamp, comprise discharge cavity 18, be located at the electrode tube 15 on discharge cavity 18 both sides and stretch into electrode assemblie in discharge cavity 18 by electrode tube 15, this electrode tube 15 comprises interior pipeline section 19 and the welding groove 13 that is connected, in being somebody's turn to do, pipeline section 19 is near discharge cavity 18, welding groove 13 is positioned at the end, and the interior pipeline section 19 of the internal diameter of welding groove 13 is large, and welding groove 13 is realized the gas-tight seal of discharge cavity 18 by filling scolder 12.This discharge cavity 18 and electrode tube 15 have adopted transparent ceramic material.
In this programme, adopt in the end of electrode tube 15 and form welding groove 13 structures, the mouth of pipe is transferred to by the electrode tube wall in sealing-in position in the past, the diameter of the mouth of pipe is larger, greatly facilitates to put scolder and complete sealing-in.In addition, further from the high arc temperature district, the length of electrode tube can correspondingly reduce scolder, helps some to the shorter and smaller application of electric arc tube yardstick requirement compared with the technique of welding in existing prior art.The cold junction position 20 of this scheme can effectively be controlled forward, near the thermal source part, has improved cold junction temperature due to more, guarantees the operating pressure of light source.The junction of discharge cavity inwall and electrode tube due to distance electric arc and electrode tip farthest, be generally surface the coldest in discharge cavity, also usually be called as cold junction.
This electrode assemblie comprises tungsten plug 16, the conducting rod 14 that is connected successively and goes between 11, this tungsten plug 16 stretches in discharge cavity 18, this conducting rod 14 is positioned at pipeline section 19, and the internal diameter of the external diameter of conducting rod 14 and interior pipeline section 19 is suitable, and lead-in wire 11 is connected with conducting rod 14 ends and the scolder that passes in welding groove 13 stretches out outside electrode tube 15.There is no the function of welding due to 15 walls in electrode tube, electrode tube 15 and electrode assemblie can reduce the gap as much as possible, the loss that brings to stop that mercury and halide enter electrode tube 15 gaps.Electrode tube 15 inwalls can pass through Precision Machining, add the outer surface processing of conducting rod 14, and the gap between them can be controlled at the precision less than 2 microns.Such precision is conducive to improve the life-span of ceramic lamp and has increased the axiality of making electrode assemblie in the lamp process, guarantees that electric arc is at the center of ceramic lamp.The electric arc of avoiding departing from can cause the departing from of ceramic lamp isothermal, and even brought the overheated of lamp part and affected result of use and the life-span of lamp.
Further, this conducting rod 14 is cermet rod.Add a lead-in wire 11, be used for joining with external circuit.The coefficient of expansion of this cermet rod and electrode tube 15 are very approaching, can effectively avoid because the coefficient of expansion of electrode tube 15 or conducting rod 14 is inconsistent, and the electrode tube 15 that causes break or has the gap.
These conducting rod 14 ends are provided with the boss structure 17 that coordinates the location with welding groove 13.During sealing-in, electrode assemblie is injected in electrode tube 15, due to the effect of boss structure 17, electrode assemblie can be positioned at predeterminated position well, after plug-in mounting, then filler 12 is filled on solder bath 13, and lead-in wire 11 passes from scolder 12 again.In this scheme, because scolder 12 is not to be filled in the gap of electrode assemblie and electrode tube 15, can effectively reduce the complexity of sealing technology.
This boss structure 17 tops are formed with some conical surfaces, make the easier wetting welding groove of scolder and electrode.This boss structure 17 can become circular platform type or square structure.
Further, come off by solder bath 13 after aging for preventing scolder 12, this welding groove 13 is an outside throat structure, and throat structure applies an axial pressure to the overall structure of scolder 12, can prevent effectively that it from coming off.
Further, this welding groove 13 can be frustum cone structure or the frustum of a cone or spherical structure.
Similarly, also can be provided with on this welding groove 13 sides some recessed/the tongue structure, groove/tongue structure has grasp to scolder integral body, can prevent effectively that scolder 12 from being come off by solder bath 13 after aging.
Further, the internal diameter size of this welding groove 13 is in 1 to 4 millimeter scope, and the degree of depth is at the 1-4 millimeter, and interior pipeline section 19 internal diameters are in 0.4-1.5 millimeter scope.
The junction 21 of the positive camber of this discharge cavity 18 and electrode tube 15 is the smooth transition structure, avoids acute angle curvature, to reduce the stress of ceramic lamp electric arc tube.
Embodiment 2
As shown in Figure 6, the present embodiment is close with the structure of embodiment 1, its difference is, this electrode assemblie comprises tungsten plug 16, conducting rod 14 and the contact tube 22 that is connected successively, this tungsten plug 16 stretches in discharge cavity 18, this conducting rod 14 is positioned at pipeline section 19, and the internal diameter of the external diameter of conducting rod 14 and interior pipeline section 19 is suitable, and this contact tube 22 is connected with conducting rod 14 ends and passes scolder 12 in welding groove 13 and stretch out that electrode tube 15 is outer to join with lead-in wire 11.
Claims (8)
1. ceramic lamp, comprise discharge cavity, be located at the electrode tube on discharge cavity both sides and stretch into electrode assemblie in discharge cavity by electrode tube, it is characterized in that, this electrode tube comprises interior pipeline section and the welding groove that is connected, in being somebody's turn to do, pipeline section is near discharge cavity, and welding groove is positioned at the end, and the interior pipeline section of the internal diameter of welding groove is large, welding groove is realized the gas-tight seal of discharge cavity by filling scolder, this discharge cavity and electrode tube adopt transparent ceramic material;
This electrode assemblie comprises tungsten plug, conducting rod and the lead-in wire that is connected successively, this tungsten plug stretches in discharge cavity, this conducting rod is positioned at pipeline section, and the internal diameter of the external diameter of conducting rod and interior pipeline section is suitable, and the scolder that is connected with the conducting rod end and passes in welding groove that goes between stretches out outside electrode tube;
This conducting rod end is provided with the boss structure that coordinates the location with welding groove.
2. ceramic lamp according to claim 1, it is characterized in that, this electrode assemblie comprises tungsten plug, conducting rod and the contact tube that is connected successively, this tungsten plug stretches in discharge cavity, this conducting rod is positioned at pipeline section, and the external diameter of conducting rod is suitable with the internal diameter of interior pipeline section, and this contact tube is connected with the conducting rod end and passes scolder in welding groove and stretch out the outer and lead-in wire of electrode tube and join.
3. ceramic lamp according to claim 1, is characterized in that, this conducting rod is cermet rod.
4. ceramic lamp according to claim 1, is characterized in that, this boss structure top is formed with the several conical surface.
5. ceramic lamp according to claim 1, is characterized in that, this welding groove be an outside throat structure or this welding groove side be provided with some recessed/the tongue structure.
6. ceramic lamp according to claim 5, is characterized in that, this welding groove is frustum cone structure or the frustum of a cone or spherical structure.
7. ceramic lamp according to claim 1, is characterized in that, the internal diameter size of this welding groove is in 1 to 4 millimeter scope, and the degree of depth is at the 1-4 millimeter, and interior pipeline section internal diameter is in 0.4-1.5 millimeter scope.
8. the described ceramic lamp of according to claim 1 to 7 any one, is characterized in that, the positive camber of this discharge cavity and the junction of electrode tube are the smooth transition structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010196099 CN101882560B (en) | 2010-06-07 | 2010-06-07 | Efficient ceramic lamp |
| PCT/CN2010/079329 WO2011153795A1 (en) | 2010-06-07 | 2010-12-01 | High-efficiency ceramic lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010196099 CN101882560B (en) | 2010-06-07 | 2010-06-07 | Efficient ceramic lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101882560A CN101882560A (en) | 2010-11-10 |
| CN101882560B true CN101882560B (en) | 2013-06-19 |
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ID=43054531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010196099 Expired - Fee Related CN101882560B (en) | 2010-06-07 | 2010-06-07 | Efficient ceramic lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101882560B (en) |
| WO (1) | WO2011153795A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882560B (en) * | 2010-06-07 | 2013-06-19 | 杨潮平 | Efficient ceramic lamp |
| CN101901735A (en) * | 2010-07-26 | 2010-12-01 | 潮州市晨歌电光源有限公司 | Electrode assembly |
| CN101916711B (en) * | 2010-08-06 | 2013-04-10 | 杨潮平 | Ceramic metal halide lamp shell |
| CN110277303B (en) * | 2018-03-15 | 2024-05-10 | 上海亚尔精密零件制造有限公司 | Processing equipment and processing method for butterfly-shaped niobium pipe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150035A (en) * | 2006-09-22 | 2008-03-26 | 东芝照明技术株式会社 | High-pressure discharge lamp, high-pressure discharge lamp operating apparatus, and illuminating apparatus. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09147803A (en) * | 1995-11-21 | 1997-06-06 | Matsushita Electron Corp | High pressure discharge lamp and illuminating optical device using it and image display device |
| JP3397064B2 (en) * | 1996-12-06 | 2003-04-14 | ウシオ電機株式会社 | Discharge lamp |
| US7923932B2 (en) * | 2007-08-27 | 2011-04-12 | Osram Sylvania Inc. | Short metal vapor ceramic lamp |
| CN202111054U (en) * | 2010-06-07 | 2012-01-11 | 潮州市灿源电光源有限公司 | High-efficiency ceramic lamp |
| CN101882560B (en) * | 2010-06-07 | 2013-06-19 | 杨潮平 | Efficient ceramic lamp |
-
2010
- 2010-06-07 CN CN 201010196099 patent/CN101882560B/en not_active Expired - Fee Related
- 2010-12-01 WO PCT/CN2010/079329 patent/WO2011153795A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150035A (en) * | 2006-09-22 | 2008-03-26 | 东芝照明技术株式会社 | High-pressure discharge lamp, high-pressure discharge lamp operating apparatus, and illuminating apparatus. |
Non-Patent Citations (1)
| Title |
|---|
| JP平10-172515A 1998.06.26 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101882560A (en) | 2010-11-10 |
| WO2011153795A1 (en) | 2011-12-15 |
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Owner name: CHAOZHOU CANYUAN ELECTRIC LIGHT SOURCE CO., LTD. Free format text: FORMER OWNER: GAO JU Effective date: 20101122 Free format text: FORMER OWNER: XIE CANSHENG ZHANG WANZHEN |
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Effective date of registration: 20101122 Address after: 521011, Guangdong, Chaozhou Province, No. 45 South Road, three ring group, Limited by Share Ltd porcelain workshop 205 rooms Applicant after: Chaozhou Sanyuan Electric Light Source Co., Ltd. Address before: 515646 Sanhuan Industrial City, Chaozhou, Guangdong Applicant before: Gao Ju Co-applicant before: Xie Cansheng Co-applicant before: Zhang Wanzhen |
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