CN101814419A - Sodium lamp with high lighting effect and long service life and process method - Google Patents
Sodium lamp with high lighting effect and long service life and process method Download PDFInfo
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- CN101814419A CN101814419A CN200910154759A CN200910154759A CN101814419A CN 101814419 A CN101814419 A CN 101814419A CN 200910154759 A CN200910154759 A CN 200910154759A CN 200910154759 A CN200910154759 A CN 200910154759A CN 101814419 A CN101814419 A CN 101814419A
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Abstract
The invention relates to a sodium lamp with high lighting effect and long service life and a process method, belonging to the technical field of energy-saving electric light sources. The sodium lamp comprises a glass lamp shell, a lamp head, an electric arc tube and a corresponding conductive support, wherein the electric arc tube consists of storage-type electrodes and a niobium-zirconium tube; sodium amalgam and xenon are filled in the electric arc tube; and the conductive support is divided into a big support and a small support, the big support and the small support are respectively connected with two ends of the electric arc tube and a glass lamp wick. The design essential is that the outer surface of the electric arc tube is wound with two coils along the axial direction; the two coils are respectively adjacent to the storage-type electrodes at the two ends of the electric arc tube; and the coils are conductively connected with each other through starting wires. The invention has reasonable structure, feasible method, luminous flux and prolonged service life, realizes a simpler and more effective way on assisting to start so that the operation of the sodium lamp is more reliable and stable, and the structure is suitable to be used as illumination equipment in occasions, such as roadways, airport terminals, ports, bus stations, plazas and the like and the sodium lamps in the same kinds.
Description
Technical field
The present invention relates to energy-saving electric light source technology field, especially relate to the high light efficiency long-life sodium vapor lamp and the process of illumination.
Background technology
Sodium vapor lamp is to utilize the visible electric light source of sodium steam discharge generation.Sodium vapor lamp is divided into low-pressure sodium lamp and high-pressure sodium lamp again.The working steam air pressure of low-pressure sodium lamp is no more than several handkerchiefs.The discharge radiation of low-pressure sodium lamp concentrates on two two D spectral lines of 589.0 nanometers and 589.6 nanometers, they are very near the peak (555 nanometer) of human eye vision curve, so its luminous efficiency is high, reach every watt (lm/W) of 200 streams at present, become the highest energy-saving light source of luminous efficiency in the electric light sources.The working steam of high-pressure sodium lamp is pressed greater than 0.01 MPa.Shortcomings such as high-pressure sodium lamp is strong excessively at low-pressure sodium lamp monochromaticjty, and color rendering is relatively poor, and discharge tube is long are developed.High-pressure sodium lamp divides plain edition (standard type) again, and its luminous efficiency is 115lm/W, color rendering index Ra=25; Modified model, its luminous efficiency are 75lm/W, color rendering index Ra=60; High colour developing type, its luminous efficiency are 45～60lm/W, color rendering index Ra=80～85.What produce is gold-tinted.
The main application scenario of sodium vapor lamp: road, airport, harbour, harbour, station, square, and do not have industrial and mineral illumination that colour developing requires etc.At functional lighting field, energy-conserving light source product such as electrodeless lamp and LED lamp still are in the technical development stage now, and sodium vapor lamp also will be the leading products in this class illumination place.But conventional high-tension sodium vapor lamp buffer gas pressure is at 4Kpa, and light efficiency is at 115lm/w, and relative exposure spoke degree is lower.Lux maintenance is 80% after 5000 hours for lamp, and the useful life of lamp was at 15000 hours.Because the buffer gas pressure in the electric arc tube is low, lamp a large amount of cathode emission material when starting is splashed on the inner surface of electric arc tube, cause the terminal blackout of electric arc tube, the heat absorption of blackout material makes more sodium mercury be evaporated, modulating voltage is further raise, and lamp extinguishes when constantly raising arrival ballast maximum permissible voltage along with modulating voltage.Lamp in the course of the work, buffer gas pressure in the electric arc tube is lower, owing to constantly discharge a large amount of foreign gas under the negative electrode high temperature, causes that the interior buffer gas of electric arc tube is rotten, electrode emission material is poisoned, and the tungsten in the electrode material and other material react and cause the terminal blackout of electric arc tube.The light efficiency that makes lamp that goes round and begins again descends the lost of life.The hard no retractor device that connects is adopted at the electric arc tube two ends of intrinsic one-tenth lamp mount structure simultaneously, the lamp high temperature that electric arc tube produces when work expands electric arc tube and nb-zr tube simultaneously, but the hard connection that adopt at the electric arc tube two ends is expanded electric arc tube and nb-zr tube to be difficult to stretch, and causes electric arc tube to produce and bursts phenomenon.
For overcoming above-mentioned problem, the technical staff provides many designs.As the patent No. ZL03131898.3 of Chinese patent literature publication, on February 28 2007 Granted publication day, denomination of invention is " high-pressure sodium lamp ".This disclosure of the Invention a kind of lamp housing be air-tightness olive shape glass bulb, concrete description in the lamp housing electric arc tube be the semi-transparent polycrystal aluminium oxide porcelain tube, and be filled with sodium mercury in the electric arc tube than being 1: 4 Na Hg of weight ratio.The advantage of this patent is that light efficiency is higher, has reached more than the 140Lm/W, and light is logical, light efficiency exceeds 20%-30% than common sodium vapor lamp.But shortcoming is that the lux maintenance of lamp is not high, and useful life and common sodium vapor lamp are more or less the same, and exist cathode emission material too and easily poison, and causes ill effects such as the terminal blackout of electric arc tube.
The patent No. ZL200820030422.3 of Chinese patent literature publication for another example, on October 22 2008 Granted publication day, the utility model name is called " interior startup high-pressure sodium lamp ".This utility model mainly is interior starting drive and electric arc tube are connected in parallel and are fixed on the support of glass bulb inside, is characterised in that: interior starting drive is jumped bubble, bimetal release, current-limiting resistance, tungsten filament by starter and is composed in series.The advantage of this patent is that sodium vapor lamp lights good reliability, and the light efficiency height has reduced the failure rate of sodium vapor lamp, and the life-span also increases to some extent.But have following shortcoming: do not have the useful life of substantial growth sodium vapor lamp, same cathode emission material is easily poisoned, and cause technical problems such as the terminal blackout of electric arc tube, and the Starting mode in this patent is easy inadequately.
For improving sodium vapor lamp useful life, two kinds of basic ideas are arranged: one, improve the material of sodium vapor lamp lamp housing and inner arc tube, two, improve the syndeton of sodium vapor lamp inside.Before the publication number CN1922714A of a kind of scheme such as Chinese patent literature publication, in open day on February 28th, 2007, denomination of invention is " high-pressure sodium lamp ", thus this invention is to have increased useful life of sodium vapor lamp by improving sodium vapor lamp luminous tube material.The patent No. ZL200820159869.0 of Chinese patent literature publication for another example, October 7 2009 Granted publication day, the utility model name is called " high light efficiency sodium vapor lamp bracing frame ", this utility model is by changing the structure of sodium vapor lamp inner arc tube bracing frame, and make bracing frame to play mitigation, thereby increased the useful life of sodium vapor lamp to the expansion of sodium vapor lamp internal material.But in above-mentioned two kinds of patents, the former increases the manufacturing cost of sodium vapor lamp, and technology is comparatively complicated, and production cost is higher; The latter has then only mentioned the structure of bracing frame, does not set forth about its concrete connected mode in lamp is corresponding, and historical facts or anecdotes is executed difficult.
In the patent documentation of above-mentioned disclosure, easily poison, cause the terminal blackout of electric arc tube that corresponding safeguard procedures are not also arranged for the negative electrode generating material.The patent No. ZL200720066650.1 that publishes as Chinese patent literature in the prior art, April 23 2008 Granted publication day, the utility model name is called " a kind of reserve type electrode that is used for high light efficiency high-pressure sodium lamp ", this utility model has mainly been set forth a kind of reserve type electrode, the ability and the anti-poisoning capability of the anti-ion bombardment of this kind electrode are stronger, thereby make that electrode material is difficult for poisoning, the terminal blackout that is difficult for of corresponding electric arc tube, be the situation of having alleviated the terminal blackout of electric arc tube to a certain extent, but the terminal blackout of electric arc tube has multiple factor, buffering air pressure as electric arc tube inside, because buffering air pressure is lower, constantly discharge a large amount of foreign gas under the electrode high temperature, cause that the buffer gas in the electric arc tube is rotten, this also is the factor that causes the terminal blackout of electric arc tube.
By comprehensive elaboration to above several patents document, learn that existing sodium vapor lamp structurally is still waiting further improvement, performance remains further to be improved.
Summary of the invention
For overcoming above-mentioned deficiency, the objective of the invention is provides a kind of high light efficiency long-life sodium vapor lamp and process that helps starting drive that have to this area, and its technical problem that solves existing sodium vapor lamp structure and poor performance is designed.Its objective is and be achieved through the following technical solutions.
A kind of high light efficiency long-life sodium vapor lamp, this sodium vapor lamp comprises glass lamp housing, lamp holder, electric arc tube and corresponding conducting bracket, wherein electric arc tube is made of reserve type electrode, nb-zr tube, be filled with sodium amalgam and xenon in the electric arc tube, conducting bracket is divided into big support and small rack, and big support is connected electric arc tube two ends and glass wick respectively with small rack.Its main points are that described electric arc tube outer surface has two coils around circle vertically, and the reserve type electrode with the electric arc tube two ends is adjacent respectively for two coils, are connected by starting the line conduction between coil and the coil.Said structure is the starting drive that helps of this high light efficiency long-life sodium vapor lamp, help Starting mode to compare with existing, this helps Starting mode to adopt the electric arc tube outer surface to connect a startup line, when electric arc tube two ends reserve type electrode has voltage, by the feasible auxiliary puncture medium that starts line as two reserve type electrodes of the mode of electromagnetic induction, it is more easy to make that two reserve type electrodes puncture, thereby realizes helping the startup effect, comparatively convenient and reliable.
The nb-zr tube of described electric arc tube one end is connected on the major axis section of big support by stainless steel E type brace.When electric arc tube raises because of internal temperature, when producing trace and expanding, stainless steel E type brace plays the cushioning effect of expansion, and when treating that the electric arc tube temperature resets, corresponding stainless steel E type brace also resets.Said process has prevented that effectively electric arc tube from breaking because of the mistake thermal expansion produces.
Be filled with the xenon of 40Kpa in the described electric arc tube, the reason that reaches this pressure is, buffer gas in electric arc tube, when just xenon gas pressure increases, effectively the generation of control electrode foreign gas when work slows down the speed that has carrier of oxygen rotten in the electric arc tube, thus the tungsten in the minimizing electrode material and the reaction of other materials, effectively avoid the blackout of electric arc tube end, improved the lux maintenance and the useful life of lamp.
The process of this high light efficiency long-life sodium vapor lamp, its main points are that the xenon gas pressure in the described electric arc tube increases to 40Kpa, and this electric arc tube adopts high-purity a-Al
2O
3Column is made in the roasting of polycrystal alumina ceramic material, and is connected with the startup line on the surface, electric arc tube outer ring; Described reserve type electrode and nb-zr tube be through laser welding, treat that the reserve type electrode is fully activated after, with nb-zr tube respectively sealing-in adopt the hermetic seal of glassy state sealing ring during sealing-in at electric arc tube two ends.
The present invention compares with existing sodium vapor lamp, on structure and performance, all improve to some extent, make that sodium vapor lamp structure of the present invention is more reasonable, method is feasible, light passband and useful life strengthen, and have realized a kind of effective and efficient manner of more simplifying aspect the startup helping, and make sodium vapor lamp work more reliable and stable, be suitable as the lighting apparatus in places such as existing road, airport harbour, harbour, station, square, and the architecture advances of similar sodium vapor lamp.
Description of drawings
Fig. 1 is the sodium lamp arc tube structural representation, has made broken section among the figure.
Fig. 2 is that sodium lamp arc tube is externally connected with the structural representation that starts line.
Fig. 3 is the overall structure schematic diagram of sodium vapor lamp, and electric arc tube has been made broken section among the figure.
Above figure number and title: 1, electric arc tube, 2, start line, 201, coil, 3, reserve type electrode, 4, nb-zr tube, 5, the glassy state sealing ring, 6, xenon, 7, sodium amalgam, 8, big support, 9, stainless steel E type brace, 10, small rack, 11, the glass wick, 12, lamp holder, 13, evaporable getter, 14, glass lamp housing.
Embodiment
Now in conjunction with the accompanying drawings, structure of the present invention and technology are further described.
This high light efficiency long-life sodium vapor lamp is made of glass lamp housing 14, electric arc tube 1, lamp holder 12 and corresponding conducting bracket, and the electric arc tube two ends connect reserve type electrode 3 by nb-zr tube 4, also is connected with on the electric arc tube outer wall to start line 2.Nb-zr tube and reserve type electrode are to pass through laser welding.Adopt glassy state sealing ring 5 when nb-zr tube and electric arc tube sealing-in, this glassy state sealing ring is alkaline scolder.Before the sealing-in of electric arc tube two ends, at first in electric arc tube, fill sodium amalgam 7 and xenon 6, make electric arc tube internal damping gas xenon reach 40Kpa.By nb-zr tube soldering stainless steel E type brace 9, stainless steel E type brace welds big support 8 with above-mentioned electric arc tube one end, and big support one end connects wick 11.The other end of electric arc tube connects small rack 10 by nb-zr tube, and small rack directly connects wick.Also spilt evaporable getter 13 in the wick position, the evaporable getter is used for vacuum exhaust, makes the sodium vapor lamp air pressure inside be in stable state.At last said structure is placed in the glass lamp housing, load onto the assembling process that lamp holder is promptly finished this sodium vapor lamp.
The outer surface that the topmost feature of the present invention just is electric arc tube 1 has between 201, two coils of two coils around circle vertically and connects by starting line 2 conductions, and two coils around the position of circle respectively with electric arc tube in reserve type electrode 3 adjacent.Can realize the startup that helps of sodium vapor lamp by said structure, not only simple in structure, and comparatively reliable and stable when starting, can be used as existing in the architecture advances of startup formula sodium vapor lamp.
Claims (4)
1. one kind high light efficiency long-life sodium vapor lamp, this sodium vapor lamp comprises glass lamp housing (14), lamp holder (12), electric arc tube (1) and corresponding conducting bracket, wherein electric arc tube is made of reserve type electrode (3), nb-zr tube (4), be filled with sodium amalgam (7) and xenon (6) in the electric arc tube, conducting bracket is divided into big support (8) and small rack (10), and big support is connected electric arc tube two ends and glass wick (11) respectively with small rack; It is characterized in that described electric arc tube (1) outer surface has two coils (201) around circle vertically, the reserve type electrode (3) with the electric arc tube two ends is adjacent respectively for two coils, is connected by starting line (2) conduction between coil and the coil.
2. according to the described high light efficiency long-life sodium vapor lamp of claim 1, it is characterized in that the nb-zr tube (4) of described electric arc tube (1) one end is connected on the major axis section of big support (8) by stainless steel E type brace (9).
3. according to the described high light efficiency long-life sodium vapor lamp of claim 1, it is characterized in that being filled with in the described electric arc tube (1) xenon (6) of 40Kpa.
4. the process of one kind high light efficiency long-life sodium vapor lamp, this sodium vapor lamp comprises electric arc tube (1), glass lamp housing (14), lamp holder (12) and corresponding conducting bracket, electric arc tube is made of reserve type electrode (3), nb-zr tube (4); The feature of its process is that xenon (6) pressure in the described electric arc tube (1) increases to 40Kpa, and this electric arc tube adopts high-purity a-Al
2O
3Column is made in the roasting of polycrystal alumina ceramic material, and is connected with startup line (2) on the surface, electric arc tube outer ring; Described reserve type electrode (3) and nb-zr tube (4) be through laser welding, treat that the reserve type electrode is fully activated after, with nb-zr tube respectively sealing-in adopt glassy state sealing ring (5) hermetic seal during sealing-in at electric arc tube (1) two end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101547594A CN101814419B (en) | 2009-12-02 | 2009-12-02 | Sodium lamp and manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101547594A CN101814419B (en) | 2009-12-02 | 2009-12-02 | Sodium lamp and manufacture method |
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| Publication Number | Publication Date |
|---|---|
| CN101814419A true CN101814419A (en) | 2010-08-25 |
| CN101814419B CN101814419B (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101547594A Expired - Fee Related CN101814419B (en) | 2009-12-02 | 2009-12-02 | Sodium lamp and manufacture method |
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| CN (1) | CN101814419B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354651A (en) * | 2011-05-30 | 2012-02-15 | 曹茂军 | Double-ended plant spectrum lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922714A (en) * | 2004-02-25 | 2007-02-28 | 松下电器产业株式会社 | High-pressure sodium lamp |
| CN201051488Y (en) * | 2007-01-25 | 2008-04-23 | 复旦大学 | A storage electrode for high light efficiency and high voltage sodium lamp |
-
2009
- 2009-12-02 CN CN2009101547594A patent/CN101814419B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354651A (en) * | 2011-05-30 | 2012-02-15 | 曹茂军 | Double-ended plant spectrum lamp |
| CN102354651B (en) * | 2011-05-30 | 2014-04-16 | 宁波亚茂照明电器有限公司 | Double-ended plant spectrum lamp |
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| Publication number | Publication date |
|---|---|
| CN101814419B (en) | 2012-02-08 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO YAMAO OPTOELECTRONICS CO., LTD. Free format text: FORMER NAME: NINGBO YAMAO LIGHTING ELECTRIC APPLIANCES CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: ZTE road 315000 Zhejiang city of Ningbo province Fenghua Xikou No. 88 Patentee after: NINGBO YAMAO PHOTOELECTRIC CO., LTD. Address before: ZTE road 315502 Zhejiang city of Fenghua province Xikou town No. 88 Ningbo Yamao Lighting Electrical Appliance Co. Ltd. Patentee before: Ningbo Yamao Lighting Electric Appliances Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20191202 |