CN105489469A - Grapheme electrode ceramic metal halide lamp - Google Patents
Grapheme electrode ceramic metal halide lamp Download PDFInfo
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- CN105489469A CN105489469A CN201410477502.3A CN201410477502A CN105489469A CN 105489469 A CN105489469 A CN 105489469A CN 201410477502 A CN201410477502 A CN 201410477502A CN 105489469 A CN105489469 A CN 105489469A
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- tungsten electrode
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Abstract
A grapheme electrode ceramic metal halide lamp includes tungsten electrode bars, thorium-tungsten electrode wires, a grapheme thin layer, a ceramic electric arc tube, luminous pills, a barium oxide electron cast charge; a bulb casing, a wick column, and a lamp holder; one ends of the tungsten electrode bars are connected to electrodes of the wick column, and the thorium-tungsten electrode wires are wound on the other ends of the tungsten electrode bars; the barium oxide electron cast charge is embedded among the thorium-tungsten electrode wires; the grapheme thin layer is adhered outside the thorium-tungsten electrode wires and the barium oxide electron cast charge; the thorium-tungsten electrode wires having the grapheme thin layer are arranged at two ends of the ceramic electric arc tube, and the two ends of the ceramic electric arc tube are sealed; the tungsten electrode bars at the two ends of the ceramic electric arc tube are in welding connection with electrode points of the wick column; the wick column and the ceramic electric arc tube provided with the electrodes are packaged in the bulb casing, the bulb casing is performed vacuum seal, and the lamp holder is welded to the wick column to form the whole grapheme electrode ceramic metal halide lamp.
Description
Technical field
The invention belongs to ceramic gold-halogen lamp electric light source field, be specifically related to a kind of Graphene electrodes ceramic gold-halogen lamp.
Background technology
Ceramic gold-halogen lamp is that polycrystalline alumina ceramic manufactures electric arc tube shell, and this pottery is a kind of trnaslucent materials, and his light transmittance is up to 96 ~ 98% in fact, exceedes glass and quartz, but be no more than 30% due to straight-line luminous transmittance, understands so just become semi-transparent.This ceramic material can bear the high temperature of higher than quartz more than 200 DEG C, after making electric arc tube, natural running temperature can up to 1200 DEG C, its thermal conductivity is higher in addition, the distribution of electric arc tube self-temperature is comparatively even, even if cold junction is also more than 900 DEG C, therefore the metal halide be filled with wherein can fully evaporate, and this is the reason that the light efficiency of ceramic gold-halogen lamp and color rendering index are high and stable.The thermal stability of ceramic bulb shell and chemical stability are very high, chemical reaction do not occur with the material being filled with electric arc tube, there is not sodium leakage problems again, and therefore lamp behaviour is stable, light decay is little, the life-span is long.When ceramic gold-halogen lamp lights work, electrode plays a part and important.Due in lighting process, the evaporation and the sputtering that are in high temperature bottom electrode make electronic emission material lose, electrode corrosion is out of shape, bulb also turns black because electrode material deposits on cell-shell, export license electron emissivity is caused to decline and the decline of arctube walls light transmittance, thus causing electric arc tube light decay serious, colour temperature consistency is deteriorated, and useful life shortens greatly.So can say that electrode determines the life-span of lamp.Meanwhile, in actual burning-point, electrode temperature from top to discharge tube sealing-in point, be a distribution from high to low, tip temperature is the highest.The fusing point of electrode material tungsten is 3650K, and in lighting process, too high electrode temperature can make electrode corrosion increase the weight of, and tube wall is turned black too early, and then reduces the lux maintenance of lamp, the useful life of reduction lamp; On the other hand, electrode temperature is too low is unfavorable for electron emission again, causes Ions Bombardment to aggravate, and electrode sputtering is serious.How to select a kind of electrode of suitable material, to performance and the life-saving of Metal halogen lamp, play extremely important effect.
The name of Graphene (Graphene) is from graphite (graphite)+-ene (ending of alkene class) of English.It is considered to hypothetical structure always, cannot stable existence separately.2004, Univ Manchester UK physicist An Deliehaimu and Constantine Nuo Woxiaoluofu, successfully from graphite, isolate Graphene in an experiment, and confirm that it can individualism, two people also serve as reasons because of " testing in the initiative of two-dimensional graphene material ", common acquisition Nobel Prize in physics in 2010.
Graphene-structured is highly stable, and up to now, researcher does not find the situation having carbon atom to lack in Graphene yet.Connection in Graphene between each carbon atom is very pliable and tough, and when applying external mechanical force, carbon atom face with regard to flexural deformation, thus makes carbon atom need not rearrange to adapt to external force, also just maintains Stability Analysis of Structures.This stable lattice structure makes carbon atom have outstanding conductivity.When electronics in Graphene moves in track, or foreign atom can not be introduced and scattering occurs because of lattice defect.Because interatomic force is very strong, at normal temperatures, even if around carbon atom telescopes, the interference that in Graphene, electronics is subject to is also very little, and meanwhile, Graphene is the thinnest in the world is also the hardest nano material, it is almost completely transparent, only absorbs the light of 2.3%; Conductive coefficient is up to 5300W/(mK), higher than carbon nano-tube and diamond, under normal temperature, its electron mobility is more than 15000cm2/(Vs), again than CNT (carbon nano-tube) or silicon wafer height, and resistivity only about 10-6 Ω cm, than copper or silver lower, be the material that world resistivity is minimum.Because its resistivity is extremely low, the speed that electronics runs is exceedingly fast, Graphene is conductivity best material in the world, electronics movement velocity wherein reaches 1/300 of the light velocity, considerably beyond the movement velocity of electronics in general conductor, meanwhile, Graphene work function is lower, thermionic emission ability is strong, is good electrode material.
Graphene and tungsten have good affinity, Graphene and existing thorium tungsten ceramic metal halogen lamp pole are combined, forming a kind of new Graphene ceramic metal halogen lamp pole, is the good solution solving the shorter problem of current ceramic metal halogen lamp pole sputter life.
Summary of the invention
Easily produce sputtering through street lamp electrode and the gasification of thorium tungsten is easily attached to arctube walls to solve existing pottery, the life-span is shorter, the poor problem of photochromic consistency.The invention provides a kind of Graphene electrodes ceramic gold-halogen lamp.The technical scheme that the present invention takes for realizing its object: a kind of Graphene electrodes ceramic gold-halogen lamp, comprising: tungsten electrode bar, thorium tungsten electrode silk, graphene film layer, ceramic arc tube, Illuminant pill, the agent of barium monoxide electron emission, bulb housing, wick column and lamp holder.One end wick column electrode of tungsten electrode bar is connected, the other end is wound around one section of thorium tungsten electrode silk, the agent of barium monoxide electron emission is inlayed between thorium tungsten electrode silk, graphene film layer is adhered to outside thorium tungsten electrode silk and the agent of barium monoxide electron emission, the electrode one end with graphene film layer is deep in ceramic arc tube, Illuminant pill is filled with in ceramic arc tube, drilling tool is all inserted at such ceramic arc tube two ends to be had the thorium tungsten electrode silk of Graphene coating layer and carries out vacuum seal, the tungsten electrode bar at ceramic arc tube two ends connects respectively at the electrode points of wick column is soldered, the ceramic arc tube of wick column and installing electrodes is encapsulated in bulb housing, and to bulb housing carry out vacuum-pumping density be honored as a queen wick column place welding lamp holder, form whole Graphene electrodes ceramic gold-halogen lamp.
Preferred graphene film, is characterized in that graphene film is 1-15 layer, and graphene film wraps up the tip of thorium tungsten electrode silk, the agent of barium monoxide electron emission and tungsten electrode bar completely.
Preferred tungsten electrode bar, it is characterized in that the partial-length that tungsten electrode bar gos deep into ceramic arc tube is 0.5-4.5mm, the tungsten electrode bar goed deep in ceramic arc tube also adheres to one deck graphene film layer.
Preferred thorium tungsten electrode silk, it is characterized in that the winding width of thorium tungsten electrode silk on tungsten electrode bar is 1-4.5mm, be the distance of even 0.01-0.5mm between two adjacent thorium tungsten electrode silks, between two thorium tungsten electrode silks, microgap place is coated with the agent of barium monoxide electron emission.
beneficial effect of the present invention
1, owing to have employed Graphene as electric conductor, greatly reduce the resistivity of conductor, improve power transmission efficiency, Graphene intensity is large, and light quality is in installation and maintenance, and meanwhile, Graphene resistance to oxidation is not corroded, and cable life is strengthened greatly.
2, adopt the tip of Graphene parcel thorium tungsten electrode silk, the agent of barium monoxide electron emission and tungsten electrode bar, greatly reduce sputtering and the loss of electrode, extend the useful life of lamp, maintain photochromic consistency.
3, because Graphene has very high electron mobility, considerably increase cathode electronics emissivities, add the luminous flux of electric arc tube.
Owing to have employed technique scheme, thus make the present invention solve the restriction condition of traditional ceramics metal halogen lamp pole application in fact, the combination of Graphene Tu Evil electrode, add ceramic gold-halogen lamp light efficiency, reduce electrode sputtering, extend electrode life, safe and reliable, be conducive to the development of relative superiority or inferiority lighting energy saving cause.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention:
1, tungsten electrode bar, 2, thorium tungsten electrode silk, 3, graphene film layer, 4, ceramic arc tube, 5, Illuminant pill, 6, the agent of barium monoxide electron emission, 7, bulb housing, 8, wick column, 9, lamp holder.
Embodiment
The invention will be described further for specific embodiments and the drawings, and a kind of Graphene electrodes ceramic gold-halogen lamp, comprising: tungsten electrode bar 1, thorium tungsten electrode silk 2, graphene film layer 3, ceramic arc tube 4, Illuminant pill 5, barium monoxide electron emission agent 6, bulb housing 7, wick column 8 and lamp holder 9.One end wick column 8 electrode of tungsten electrode bar 1 is connected, the other end is wound around one section of thorium tungsten electrode silk 2, barium monoxide electron emission agent 6 is inlayed between thorium tungsten electrode silk 2, graphene film layer 3 is adhered to outside thorium tungsten electrode silk 2 and barium monoxide electron emission agent 6, the electrode one end with graphene film layer 3 is deep in ceramic arc tube 4, Illuminant pill 5 is filled with in ceramic arc tube 4, drilling tool is all inserted at such ceramic arc tube 4 two ends to be had the thorium tungsten electrode silk 2 of Graphene coating layer and carries out vacuum seal, the tungsten electrode bar 1 at ceramic arc tube 4 two ends connects with the electrode points of wick column 8 is soldered respectively, the ceramic arc tube 4 of wick column 8 and installing electrodes is encapsulated in bulb housing 7, and to bulb housing 7 carry out vacuum-pumping density be honored as a queen place of wick column 7 welding lamp holder 9, form whole Graphene electrodes ceramic gold-halogen lamp.
Preferred graphene film, is characterized in that graphene film 3 is for 1-15 layer, and graphene film 3 wraps up the tip of thorium tungsten electrode silk 2, barium monoxide electron emission agent 6 and tungsten electrode bar 1 completely.
Preferred tungsten electrode bar, it is characterized in that the partial-length that tungsten electrode bar 1 gos deep into ceramic arc tube 4 is 0.5-4.5mm, the tungsten electrode bar 1 goed deep in ceramic arc tube 4 also adheres to one deck graphene film layer 3.
Preferred thorium tungsten electrode silk, it is characterized in that the winding width of thorium tungsten electrode silk 2 on tungsten electrode bar 1 is 1-4.5mm, be the distance of even 0.01-0.5mm between two adjacent thorium tungsten electrode silks 2, between two thorium tungsten electrode silks 2, microgap place is coated with barium monoxide electron emission agent 6.
Above-described embodiment just illustrates technical conceive of the present invention and feature, its objective is and those of ordinary skill in the art can be understood feature of the present invention and implement according to this, can not limit the scope of the invention with this.Every equivalence carried out according to the essence of content of the present invention changes or modifies, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. a Graphene electrodes ceramic gold-halogen lamp, comprising: tungsten electrode bar, thorium tungsten electrode silk, graphene film layer, ceramic arc tube, Illuminant pill, the agent of barium monoxide electron emission, bulb housing, wick column and lamp holder; It is characterized in that one ends wound one section of thorium tungsten electrode silk of tungsten electrode bar, between thorium tungsten electrode silk, inlay the agent of barium monoxide electron emission, outside thorium tungsten electrode silk and the agent of barium monoxide electron emission, adhere to graphene film layer.
2. a kind of Graphene electrodes ceramic gold-halogen lamp according to claim 1, is characterized in that ceramic arc tube two ends are all inserted drilling tool and had the thorium tungsten electrode silk of Graphene coating layer and carry out vacuum seal.
3. a kind of Graphene electrodes ceramic gold-halogen lamp according to claim 1, is characterized in that graphene film is 1-15 layer, and graphene film wraps up the tip of thorium tungsten electrode silk, the agent of barium monoxide electron emission and tungsten electrode bar completely.
4. a kind of Graphene electrodes ceramic gold-halogen lamp according to claim 1, it is characterized in that the partial-length that tungsten electrode bar gos deep into ceramic arc tube is 0.5-4.5mm, the tungsten electrode bar goed deep in ceramic arc tube also adheres to one deck graphene film layer.
5. a kind of Graphene electrodes ceramic gold-halogen lamp according to claim 1, it is characterized in that the winding width of thorium tungsten electrode silk on tungsten electrode bar is 1-4.5mm, be the distance of even 0.01-0.5mm between two adjacent thorium tungsten electrode silks, between two thorium tungsten electrode silks, microgap place is coated with the agent of barium monoxide electron emission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477502.3A CN105489469B (en) | 2014-09-18 | 2014-09-18 | Grapheme electrode ceramic metal halide lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410477502.3A CN105489469B (en) | 2014-09-18 | 2014-09-18 | Grapheme electrode ceramic metal halide lamp |
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| CN105489469A true CN105489469A (en) | 2016-04-13 |
| CN105489469B CN105489469B (en) | 2017-04-19 |
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| CN201410477502.3A Expired - Fee Related CN105489469B (en) | 2014-09-18 | 2014-09-18 | Grapheme electrode ceramic metal halide lamp |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11288688A (en) * | 1998-04-01 | 1999-10-19 | New Japan Radio Co Ltd | Cathode for discharge tube and arc lamp |
| JP2012150951A (en) * | 2011-01-18 | 2012-08-09 | Ushio Inc | Xenon short arc lamp for digital projector |
| CN204144220U (en) * | 2014-09-18 | 2015-02-04 | 王干 | A kind of Graphene electrodes ceramic gold-halogen lamp |
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2014
- 2014-09-18 CN CN201410477502.3A patent/CN105489469B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11288688A (en) * | 1998-04-01 | 1999-10-19 | New Japan Radio Co Ltd | Cathode for discharge tube and arc lamp |
| JP2012150951A (en) * | 2011-01-18 | 2012-08-09 | Ushio Inc | Xenon short arc lamp for digital projector |
| CN204144220U (en) * | 2014-09-18 | 2015-02-04 | 王干 | A kind of Graphene electrodes ceramic gold-halogen lamp |
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| CN105489469B (en) | 2017-04-19 |
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Inventor after: Wei Ying Inventor before: Wang Gan Inventor before: Ye Chunfeng Inventor before: Wang Zihan |
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Effective date of registration: 20171229 Address after: No. 28, building No. 28, No. 1, Xinhua Street, Xincheng, Hohhot City, the Inner Mongolia Autonomous Region, No. 14 Patentee after: Wei Ying Address before: Guo River Road 233600 Anhui city of Bozhou province Guoyang County Chengguan Town, No. 115-136 Patentee before: Wang Gan |
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