CN201829464U - Ceramic non-polar plasma light source - Google Patents
Ceramic non-polar plasma light source Download PDFInfo
- Publication number
- CN201829464U CN201829464U CN201020217426XU CN201020217426U CN201829464U CN 201829464 U CN201829464 U CN 201829464U CN 201020217426X U CN201020217426X U CN 201020217426XU CN 201020217426 U CN201020217426 U CN 201020217426U CN 201829464 U CN201829464 U CN 201829464U
- Authority
- CN
- China
- Prior art keywords
- ceramic
- pottery
- microwave
- plasma source
- tube connector
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
- H01J65/044—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by a separate microwave unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/48—Means forming part of the tube or lamp for the purpose of supporting it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/025—Associated optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/302—Vessels; Containers characterised by the material of the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/34—Joining base to vessel
Abstract
The utility model discloses a ceramic non-polar plasma light source, which comprises a microwave resonant cavity and a ceramic electric arc tube, wherein the ceramic electric arc tube is made of transparent or light transparent material; the ceramic electric arc tube comprises a plasma cavity filled with luminescent material and a connecting tube arranged at one end of the plasma cavity; the connecting tube is internally inserted with a ceramic plug rod; air-tight seal connection is realized between the ceramic plug rod and the connecting tube by solder; the microwave resonant cavity is provided with a through hole; the ceramic electric arc tube is positioned in the through hole; and the microwave resonant cavity is also connected with a microwave input source. The ceramic non-polar plasma light source has the advantages of high luminous efficiency, longer service life and the like.
Description
Technical field
The invention belongs to ceramic light source field, relate in particular to the electrodeless plasma source of a kind of pottery.
Background technology
The plasma light source is to utilize the radiation of be stimulated atom or molecule in the plasma that lumen is provided.Wherein, electric field is used for producing and safeguarding the excitation state of atom or molecule, and the original molecule that excites is got back to the low-lying level attitude with different probabilities and speed transition, and the energy of its loss is transformed into photon, and then finishes the conversion of electric energy to luminous energy or lumen.And general plasma light source, as fluorescent lamp, quartz metal halide lamp, ceramic gold-halogen lamps etc. utilize electrode that electromagnetic field is delivered in the plasma chamber (electric arc tube).Electrode is two terminals of plasma, again for plasma provides electronics, so it causes the loss of electrode material except being subjected to ohmic heating and will being subjected to ion and electron bombard.The destruction of electrode is one of main defective pattern of plasma source, and free electrode material, as tungsten, is deposited on the output that has stopped light on the electric arc tube, thereby causes light decay.
Summary of the invention
At the shortcoming of prior art, the purpose of this invention is to provide a kind of luminous efficiency height, longer ceramic electrodeless plasma source of life-span.
For achieving the above object, technical scheme of the present invention is: the electrodeless plasma source of a kind of pottery, it comprises microwave cavity and ceramic arc tube, this ceramic arc tube is made of transparent or light transmissive material, this ceramic arc tube comprises the plasma chamber of filling luminescent substance and is located at the tube connector of plasma chamber one end, be fitted with a ceramic stopper rod in the tube connector, this pottery stopper rod is realized hermetic seal by scolder and tube connector, this microwave cavity is provided with through hole, this ceramic arc tube is located in the through hole, and this microwave cavity also is connected with the microwave input source.
In this programme, owing to can not produce electrode damage, light fixture has the more long-life, does not have electrode material to pollute electric arc tube in addition, can effectively reduce the light source light decay; Because without the electrode definition electric field, plasma no longer terminates on the electrode end surface, plasma is full of whole cavity more equably, so utilize all luminescent substances more fully, thereby higher light efficiency arranged, simultaneously do not worry luminescent substance and electrode reaction yet, thereby have more multiple stimulative substance to select.
In addition, the electric arc tube that ceramic material is made, it is compared with quartz arc tube, has following advantage:
1, pottery is more high temperature resistant than quartz, helps improving plasma air pressure, improves light efficiency;
2, pottery can anti-more hyperbar, can more work under the hyperbar, improves light efficiency;
3, since pottery than more heat conduction of quartz, the ceramic surface more uniform temperature is effectively eliminated cold spot, improves light efficiency and colour consistency;
4, because pottery is littler than quartzy frequency electromagnetic waves loss, reduce the electromagnetic field loss, improve electro-optical efficiency, or the every wattage of lumen.
Light effect in order to improve, this plasma chamber body part is exposed to microwave cavity.
This tube connector end is provided with welding groove, and the welding groove internal diameter is greater than the tube connector internal diameter, and welding groove is realized the gas-tight seal of ceramic arc tube by filling scolder.
This programme is provided with welding groove at the tube connector end, and the end face welding here is to make scolder to greatest extent away from the high-temperature plasma district compared with the advantage of welding in tube connector, the serviceability of favourable raising scolder and life-span.Simultaneously, solder bath can guarantee the quality and quantity of scolder more reliably, to guarantee the air-tightness of electric arc tube under condition of high voltage.Scolder can melt welding in the solder bath original place, and scolder does not flow in capillary, arrives certain depth, and then finishes welding.Scolder original place welding in solder bath has been simplified the sealing-in process and has been reduced the sealing-in time.
In order accurately to locate the position of ceramic stopper rod, this ceramic plug masthead end is provided with the location structure with the welding groove secure fit, and scolder is filled on this location structure.
In order accurately to locate the position of ceramic arc tube, this tube connector is formed with a protruding bit architecture, and this protruding bit architecture cooperates with the through hole location.
Further, this welding groove and tube connector are one-body molded, and perhaps this welding groove is to be formed by the groove of being located in the through hole.
In order to realize better sealing effectiveness, this pottery stopper rod external diameter is suitable with the tube connector internal diameter.
The coefficient of expansion of this pottery stopper rod is consistent with tube connector, can effectively avoid because the coefficient of expansion of tube connector and ceramic stopper rod is inconsistent, and the tube connector that causes breaks or has the gap.Less clearance has prevented effectively that luminescent substance from entering the gap and the loss of the luminescent substance that brings and the light efficiency that causes thus lower and the change in color of light.
Further, this microwave cavity is the rotary structure that middle position has an arc groove, and this through hole is located at the central shaft position of revolving body, and this ceramic arc tube passes this through hole, and a plasma chamber part is exposed to arc groove.The central shaft position is the position of whole microwave cavity energy maximum, and ceramic arc tube is arranged on this position, makes its interior luminescent substance obtain maximum energy, illumination effect the best.
In order further to provide light effect, this microwave cavity is made of metal shell and the ceramic dielectric be located in the metal shell, and the lateral surface of this arc groove is a reflecting surface.
Further, this curved concavity structure in pottery stopper rod bottom, this plasma chamber body is away from the also curved concavity structure of an end of ceramic stopper rod, and this pottery stopper rod can be made of refecting ceramic material.
Further, this microwave cavity also is connected with the Microwave Measurement source, and it adjusts the intake of microwave input source according to the size of the microwave energy in the microwave cavity.
Description of drawings
Fig. 1 is the generalized section of the embodiment of the invention 1.
Fig. 2 is the structure for amplifying schematic diagram of Fig. 1 welding groove part.
Fig. 3 is the generalized section of the embodiment of the invention 2.
Fig. 4 is the generalized section of the embodiment of the invention 2 another kind of structures.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in detail.
As shown in Figures 1 and 2, the invention discloses the electrodeless plasma source of a kind of pottery, it comprises microwave cavity 1 and ceramic arc tube 2, this ceramic arc tube 2 comprises the plasma chamber 21 of filling luminescent substance and is located at the tube connector 22 of plasma chamber 21 1 ends, be fitted with a ceramic stopper rod 23 in the tube connector 22, this pottery stopper rod 23 is realized hermetic seal by scolder 24 and tube connector 22, this microwave cavity 1 is provided with through hole, this ceramic arc tube 2 is located in the through hole, certainly, this plasma chamber body 21 also can a part expose to microwave cavity 1, and this microwave cavity 1 also is connected with microwave input source 3.
This electric arc tube 2 is made for transparent or light transmissive ceramic material, the metal bar of this microwave input source 3 for being connected with microwave generator, and this metal bar is inserted in the microwave cavity 1.In the manufacturing process of the present invention, make electric arc tube earlier, add luminescent substance and start gas, as argon gas, krypton gas, xenons etc. are placed into ceramic stopper rod in the through hole again, add the scolder heating and finish sealing-in.During work, this microwave input source is to microwave cavity Transmission Microwave energy signal, and the microwave energy signal carries out the energy reorganization in resonant cavity, and transfers to the ceramic arc tube place, energy enters plasma chamber after passing the tube connector that ceramic making forms, thereby the stimulated luminescence material is luminous.
These tube connector 22 ends are provided with welding groove 25, and welding groove 25 internal diameters are greater than tube connector 22 internal diameters, and welding groove 25 is realized the gas-tight seal of ceramic arc tube 2 by filling scolder 24; These pottery stopper rod 23 tops are provided with the location structure 26 with welding groove 25 secure fit, and scolder 24 is filled on this location structure 26, during encapsulation, only need ceramic stopper rod 23 is filled in the electric arc tube 2, location structure 26 cooperates with welding groove 25 location, can effectively accurately locate the position of ceramic stopper rod 23, recharge scolder 24 at last, realize the sealing-in process.This location structure 26 can projection or spacer.
These location structure 26 tops are formed with the some kinds of conical surfaces, make the easier wetting welding groove of scolder.Further, come off by solder bath 25 for preventing scolder 24 aging backs, this welding groove 25 is an outside throat structure, and throat structure applies an axial pressure for the overall structure of scolder, can prevent effectively that it from coming off.Further, this welding groove can be frustum cone structure or the frustum of a cone 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 the aging back of scolder from being come off by solder bath.
In order accurately to locate the position of ceramic arc tube 2, this tube connector 22 is formed with a protruding bit architecture 27, and this protruding bit architecture 27 cooperates with the through hole location.Concrete fit system can be, and this through hole is for waiting gauge structure, and this protruding bit architecture 27 cooperates fixing with the top end face of through hole.In addition, this through hole can be the non-gauge structure of Denging, and the via top place has a groove, and this protruding bit architecture 27 places in this groove.
In the present embodiment, this welding groove 25 is formed in one with tube connector 22.
In order to reduce the gap between ceramic stopper rod 23 and the tube connector 22, improve sealing effectiveness, these pottery stopper rod 23 external diameters are suitable with tube connector 22 internal diameters, and both pass through fine finishining and make the gap can be below 5 microns, even below 2 microns.
Further, this microwave cavity 1 has the rotary structure of an arc groove 11 for middle position, and this through hole is located at the central shaft position of revolving body, and this ceramic arc tube 2 passes this through hole, and plasma chamber 21 is exposed to arc groove 11.The central shaft position is the position of whole microwave cavity 1 energy maximum, and ceramic arc tube 2 is arranged on this position, makes its interior luminescent substance obtain maximum energy, illumination effect the best.
Further, this microwave cavity 1 is made of metal shell 12 and the ceramic dielectrics 13 be located in the metal shell 12, and the lateral surface of this arc groove 11 is a reflecting surface.This pottery stopper rod 23 can be made of refecting ceramic material, to improve the directed luminous power of electric arc tube 2.
Further, this curved concavity structure in pottery stopper rod 23 bottoms, this plasma chamber body 21 is away from the also curved concavity structure of an end of ceramic stopper rod 23.
Further, this microwave cavity 1 also is connected with Microwave Measurement source 4, and it adjusts the intake of microwave input source 3 according to the size of the microwave energy in the microwave cavity 1.This Microwave Measurement source 4 also is a metal bar that is connected with microwave detector, and this metal bar also is plugged in the microwave cavity 1.
As shown in Figures 3 and 4, present embodiment and embodiment 1 similar, its difference is that this welding groove 25 forms for the groove of being located in the through hole.This ceramic arc tube 2 places this through hole, and cooperates the location by its protruding bit architecture 27 with welding groove 25, realizes sealing by fill scolder 24 in this groove again.
These pottery stopper rod 23 tops equally also can be provided with the location structure 26 with welding groove 25 secure fit, and scolder 24 is filled on this location structure 26, during encapsulation, only need ceramic stopper rod 23 is filled in the electric arc tube 2, location structure 26 cooperates with welding groove 25 location, can effectively accurately locate the position of ceramic stopper rod 23, recharge scolder 24 at last, realize the sealing-in process.This location structure 26 can projection or spacer.
Claims (11)
1. electrodeless plasma source of pottery, it is characterized in that, comprise microwave cavity and ceramic arc tube, this ceramic arc tube is made of transparent or light transmissive material, this ceramic arc tube comprises the plasma chamber of filling luminescent substance and is located at the tube connector of plasma chamber one end, be fitted with a ceramic stopper rod in the tube connector, this pottery stopper rod is realized hermetic seal by scolder and tube connector, this microwave cavity is provided with through hole, this ceramic arc tube is located in the through hole, and this microwave cavity also is connected with the microwave input source.
2. the electrodeless plasma source of pottery according to claim 1 is characterized in that, this plasma chamber body part is exposed to microwave cavity.
3. the electrodeless plasma source of pottery according to claim 2 is characterized in that this tube connector end is provided with welding groove, and the welding groove internal diameter is greater than the tube connector internal diameter, and welding groove is realized the gas-tight seal of ceramic arc tube by filling scolder.
4. the electrodeless plasma source of pottery according to claim 3 is characterized in that, this ceramic plug masthead end is provided with the location structure with the welding groove secure fit, and scolder is filled on this location structure.
5. the electrodeless plasma source of pottery according to claim 3 is characterized in that this tube connector is formed with a protruding bit architecture, and this protruding bit architecture cooperates with the through hole location.
6. according to claim 3 or the electrodeless plasma source of 4 or 5 described potteries, it is characterized in that this welding groove and tube connector are one-body molded, perhaps welding groove is to be formed by the groove of being located in the through hole.
7. the electrodeless plasma source of pottery according to claim 2 is characterized in that this pottery stopper rod external diameter is suitable with the tube connector internal diameter.
8. the electrodeless plasma source of pottery according to claim 2, it is characterized in that, this microwave cavity is the rotary structure that middle position has an arc groove, this through hole is located at the central shaft position of revolving body, this ceramic arc tube is located in this through hole, and a plasma chamber part is exposed to arc groove.
9. the electrodeless plasma source of pottery according to claim 8 is characterized in that, this microwave cavity is made of metal shell and the ceramic dielectric be located in the metal shell, and the lateral surface of this arc groove is a reflecting surface.
10. the electrodeless plasma source of pottery according to claim 1, it is characterized in that, this curved concavity structure in pottery stopper rod bottom, this plasma chamber body is away from the also curved concavity structure of an end of ceramic stopper rod, and this pottery stopper rod is made of refecting ceramic material.
11. the electrodeless plasma source of pottery according to claim 1 is characterized in that this microwave cavity also is connected with the Microwave Measurement source, it adjusts the intake of microwave input source according to the size of the microwave energy in the microwave cavity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020217426XU CN201829464U (en) | 2010-06-07 | 2010-06-07 | Ceramic non-polar plasma light source |
| PCT/CN2010/079391 WO2011153799A1 (en) | 2010-06-07 | 2010-12-02 | Ceramic electrodeless plasma light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020217426XU CN201829464U (en) | 2010-06-07 | 2010-06-07 | Ceramic non-polar plasma light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829464U true CN201829464U (en) | 2011-05-11 |
Family
ID=43967984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020217426XU Expired - Fee Related CN201829464U (en) | 2010-06-07 | 2010-06-07 | Ceramic non-polar plasma light source |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201829464U (en) |
| WO (1) | WO2011153799A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241082A (en) * | 2014-09-18 | 2014-12-24 | 单家芳 | Microwave coaxial cavity plasma lamp |
| CN106663592A (en) * | 2014-06-13 | 2017-05-10 | 塞拉维申有限公司 | Light source |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064441B (en) * | 2014-06-12 | 2016-05-04 | 单家芳 | For the microwave cavity of plasma source |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100498307B1 (en) * | 2002-10-24 | 2005-07-01 | 엘지전자 주식회사 | Reluminescence acceleration apparatus for plasma lighting system |
| CN1905125A (en) * | 2005-07-28 | 2007-01-31 | 乐金电子(天津)电器有限公司 | Plasma illuminating device |
-
2010
- 2010-06-07 CN CN201020217426XU patent/CN201829464U/en not_active Expired - Fee Related
- 2010-12-02 WO PCT/CN2010/079391 patent/WO2011153799A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106663592A (en) * | 2014-06-13 | 2017-05-10 | 塞拉维申有限公司 | Light source |
| CN104241082A (en) * | 2014-09-18 | 2014-12-24 | 单家芳 | Microwave coaxial cavity plasma lamp |
| CN104241082B (en) * | 2014-09-18 | 2016-08-24 | 单家芳 | Microwave cylindrical coaxial cavity resonator plasma lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011153799A1 (en) | 2011-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20120607 |