CN201153109Y - Electricity discharging tube for metal halide lamp - Google Patents
Electricity discharging tube for metal halide lamp Download PDFInfo
- Publication number
- CN201153109Y CN201153109Y CNU2008200312338U CN200820031233U CN201153109Y CN 201153109 Y CN201153109 Y CN 201153109Y CN U2008200312338 U CNU2008200312338 U CN U2008200312338U CN 200820031233 U CN200820031233 U CN 200820031233U CN 201153109 Y CN201153109 Y CN 201153109Y
- Authority
- CN
- China
- Prior art keywords
- ceramic
- straight tube
- metal halide
- porcelain cap
- 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 - Fee Related
Links
- 229910001507 metal halide Inorganic materials 0.000 title claims abstract description 31
- 150000005309 metal halides Chemical class 0.000 title claims abstract description 31
- 238000007599 discharging Methods 0.000 title 1
- 230000005611 electricity Effects 0.000 title 1
- 239000000919 ceramic Substances 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 229910052573 porcelain Inorganic materials 0.000 claims description 44
- 238000000605 extraction Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000009877 rendering Methods 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract 1
- 230000001795 light effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000004544 sputter deposition Methods 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 230000000875 corresponding effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007537 lampworking Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 metals halide Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The utility model relates to a discharge lamp used for a metal halide lamp, which is provided with a ceramic straight tube with openings at both ends. Both ends of the ceramic straight tube are respectively connected with an airproof ceramic cap, and an eduction tube is arranged on each airproof ceramic cap; the airproof ceramic caps connected with both ends of the ceramic straight tube are taper-shaped shells which are protuberant outwards, and each eduction tube is integrated with the corresponding airproof ceramic cap into a whole; the connection between each airproof ceramic cap and each opening end of the ceramic straight tube is a positioning rabbet joint. A cavity structure formed after the molding of the ceramic straight tube and the airproof ceramic cap accords with the voltaic arc shape requirement of the metal halide lamp, thereby improving the light effect, the color rendering index and the coherence. Both ends of the discharge lamp have lowest thermal capacity, so the temperature at both ends of the discharge lamp can be enhanced full out, the electrode sputtering is reduced, and the service life of the metal halide lamp is effectively prolonged; the discharge lamp has reliable sealing, high product security, simple structure, convenient molding, and easy control for the size, and is suitable for batch production.
Description
Technical field
The utility model relates to a kind of metal halide lamp discharge tube.
Background technology
It is long that metal halide lamp has the light efficiency high life, and the color rendering index advantages of higher is widely used and the station, harbour, and road, the airport, the warehouse, the every field of indoor and outdoor lighting such as market is described as the third generation in the world lighting source.The general adopting quartz glass of conventional metals halide lamp is as its discharge tube material, but quartzy meeting and the metal halide chemically reactive that charges in the discharge tube under the lamp working temperature, thereby influence the consistency and the maintenance of metal halide lamp photoelectric properties, limited the use of metal halide lamp and promoted.Because aluminium oxide ceramics at high temperature has better chemical stability, under the working temperature with the lamp electric arc tube in metal halide reaction not obvious, thereby metal halide lamp is worked under higher temperature, light efficiency is higher than quartz metal halide lamp more than 15%, has higher stability, photoelectric parameter is kept better, so the research and development of aluminium oxide ceramics discharge tube and industrialization are significant to setting up conservation-minded society.
But because the characteristic that aluminium oxide ceramics had, make that the machine-shaping of aluminium oxide ceramics discharge tube is very difficult, produce for simplifying, existing metal halide lamp ceramic discharge tube adopts the column type cavity body structure more, yet this discharge tube cavity body structure shape does not meet the requirement of arc shape in the metal halide lamp, can in discharge tube, form cold junction, thereby the difference that causes the light electrical quantity, and the shortening in metal halide lamp life-span, and the ceramic discharge tube of column type cavity body structure that the temperature of metal halide lamp is risen is slower, electrode sputter aggravation.
The utility model content
The purpose of this utility model is to provide a kind of discharge tube cavity geometry to meet the requirement of arc shape, and metal halide lamp is rapidly heated, and effectively prolongs the metal halide lamp metal halide lamp discharge tube in useful life.
The technical scheme that realizes the utility model purpose is: the utlity model has the ceramic straight tube of both ends open, ceramic straight tube two ends respectively are connected with a sealing porcelain cap, and each sealing porcelain cap is provided with extraction tube; The sealing porcelain cap that described ceramic straight tube two ends connect is the conical shell that outwards protrudes, and each extraction tube is an integral piece with corresponding sealing porcelain cap; Rabbet the location that is connected to of sealing porcelain cap and ceramic straight tube openend.
Above-mentioned metal halide lamp with the sealing porcelain cap of the discharge tube link relative with ceramic straight tube have can insert ceramic straight tube inner chamber and with the connecting portion of inner chamber interference fit with the parallel locating surface of ceramic straight tube end face, the interlocking of described sealing porcelain cap and ceramic straight tube location be connecting portion interlocking by each sealing porcelain cap at ceramic straight tube inner chamber, and the locating surface of sealing porcelain cap is close to, and ceramic straight tube end face realizes.
The connecting portion end face of the sealing porcelain cap of above-mentioned metal halide lamp usefulness discharge tube is perpendicular to sealing porcelain cap circular cone axis, and the end face height is between 1～6 millimeter.
The circular cone inwall angle of the sealing porcelain cap of above-mentioned metal halide lamp usefulness discharge tube is between 80～130 degree.
The utlity model has following characteristics:
(1) sealing porcelain cap of the present utility model is a conical design, makes the discharge tube two ends have minimum thermal capacity, and discharge tube two ends temperature can the fastest lifting, has reduced the electrode sputter, effectively prolongs metal halide lamp useful life.
(2) cavity body structure that is had behind ceramic straight tube of the present utility model and the sealing porcelain cap forming meets the requirement of metal halide lamp arc shape, has improved light efficiency, color rendering index and consistency.
(3) sealing porcelain cap of the present utility model has locating surface, processing and manufacturing and control when being convenient to the last moulding of discharge tube, and locating surface increased the sealing surface of ceramic straight tube and sealing porcelain cap, improved the sealing-in reliability.
(4) this place's mechanical strength has been improved greater than an angle of 90 degrees in the junction of sealing porcelain cap in the utility model and extraction tube, alleviates junction stress, has improved Product Safety.
(5) the utility model is simple in structure, and convenient formation, size are easy to control, is suitable for producing in batches.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is extraction tube of the present utility model and the corresponding profile that seals porcelain cap integral piece.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the utlity model has the ceramic straight tube 1 of both ends open, ceramic straight tube 1 two ends respectively are connected with a sealing porcelain cap 2, and each sealing porcelain cap 2 is provided with extraction tube 3; The sealing porcelain cap 2 that pottery straight tube 1 two ends connect is the conical shell that outwards protrudes, and each extraction tube 3 is an integral piece with corresponding sealing porcelain cap 2; Sealing porcelain cap 2 and ceramic straight tube 1 relative link have can insert ceramic straight tube 1 inner chamber and with the connecting portion 21 of inner chamber interference fit with the parallel locating surface 22 of ceramic straight tube 1 end face, sealing porcelain cap 2 and ceramic straight tube 1 location interlocking are that the connecting portion 21 by each sealing porcelain cap 2 is embedded in ceramic straight tube 1 inner chamber, and the locating surface 22 of sealing porcelain cap 2 is close to, and ceramic straight tube 1 end face realizes; Connecting portion 21 end faces of sealing porcelain cap 2 are perpendicular to sealing porcelain cap 2 circular cone axis b, and end face height a is between 1～6 millimeter, and the circular cone inwall angle c of sealing porcelain cap 2 is between 80～130 degree.
Metal halide lamp discharge tube of the present utility model is by ceramic discharge tube and enclose that pair of electrodes constitutes in it, charges into metal halide in the ceramic discharge tube shell, mercury and start gas.Electrode is finished hermetic seal by niobium lead-out wire and discharge tube two ends extraction tube 3 by oxide solder.When producing assembling, pottery straight tube 1 is by mould compacting or extrusion molding, sealing porcelain cap 2 is by mould compression moulding with the integral piece of extraction tube 3, after the first sintering moulding, the connecting portion 21 of sealing porcelain cap 2 is embedded in ceramic straight tube 1 inner chamber, and the method for attachment that the locating surface 22 of sealing porcelain cap 2 is close to ceramic straight tube 1 end face with the correlated parts assembling after, at high temperature it is sintered into as a whole.
Claims (4)
1, a kind of metal halide lamp discharge tube has the ceramic straight tube (1) of both ends open, and ceramic straight tube (1) two ends respectively are connected with a sealing porcelain cap (2), and each sealing porcelain cap (2) is provided with extraction tube (3); It is characterized in that: the conical shell of the sealing porcelain cap (2) that described ceramic straight tube (1) two ends connect for outwards protruding, each extraction tube (3) is an integral piece with corresponding sealing porcelain cap (2); Sealing porcelain cap (2) is rabbeted with the location that is connected to of ceramic straight tube (1) openend.
2, metal halide lamp discharge tube according to claim 1, it is characterized in that: the link that described sealing porcelain cap (2) is relative with ceramic straight tube (1) have can insert ceramic straight tube (1) inner chamber and with the connecting portion (21) of inner chamber interference fit and the locating surface (22) parallel with ceramic straight tube (1) end face, the interlocking of described sealing porcelain cap (2) and ceramic straight tube (1) location be connecting portion (21) interlocking by each sealing porcelain cap (2) at ceramic straight tube (1) inner chamber, and the locating surface (22) of sealing porcelain cap (2) is close to ceramic straight tube (1) end face and is realized.
3, metal halide lamp discharge tube according to claim 2 is characterized in that: connecting portion (21) end face of described sealing porcelain cap (2) is perpendicular to sealing porcelain cap (2) circular cone axis (b), and end face height (a) is between 1～6 millimeter.
4, metal halide lamp discharge tube according to claim 1 is characterized in that: the circular cone inwall angle (c) of described sealing porcelain cap (2) is between 80～130 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200312338U CN201153109Y (en) | 2008-01-18 | 2008-01-18 | Electricity discharging tube for metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200312338U CN201153109Y (en) | 2008-01-18 | 2008-01-18 | Electricity discharging tube for metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201153109Y true CN201153109Y (en) | 2008-11-19 |
Family
ID=40128784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200312338U Expired - Fee Related CN201153109Y (en) | 2008-01-18 | 2008-01-18 | Electricity discharging tube for metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201153109Y (en) |
-
2008
- 2008-01-18 CN CNU2008200312338U patent/CN201153109Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Plus Lighting (Jiangsu) Co., Ltd. Assignor: Jiangsu Plus Electric Appliance Co., Ltd. Contract record no.: 2010320000547 Denomination of utility model: Electricity discharging tube for metal halide lamp Granted publication date: 20081119 License type: Exclusive License Record date: 20100507 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20120118 |