CN201392809Y - Electric arc tube of ceramic metal halogen lamp for road illumination and lamp cap - Google Patents
Electric arc tube of ceramic metal halogen lamp for road illumination and lamp cap Download PDFInfo
- Publication number
- CN201392809Y CN201392809Y CN200920054033U CN200920054033U CN201392809Y CN 201392809 Y CN201392809 Y CN 201392809Y CN 200920054033 U CN200920054033 U CN 200920054033U CN 200920054033 U CN200920054033 U CN 200920054033U CN 201392809 Y CN201392809 Y CN 201392809Y
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- arc tube
- electric arc
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Abstract
The utility model aims to provide an electric arc tube of a long polar distance ceramic metal halogen lamp and solve the problem of higher trigger voltage caused by longer polar distance of the electric arc tube. The electric arc tube of the ceramic metal halogen lamp comprises a bulb casing, an electrode and gas filled in the bulb casing. Particularly, the length-to-diameter ratio of the bulb casing is between 2.5 and 5; and a conductive tape device for reducing the trigger voltage of the electric arc tube is also arranged outside the bulb casing. The utility model has the advantages that the effective arc column of the electric arc tube of the ceramic metal halogen lamp is greatly longer than that of a metal halogen lamp with an identical power and short polar distance light source and the luminous efficiency is correspondingly improved. Furthermore, the utility model effectively solves the problems of higher trigger voltage caused by longer polar distance and wearable bulb casing, so that the electric arc tube is easier to consider the illumination evenness when being applied to wide-road illumination, in particular to the illumination of road axial parts.
Description
Technical field
The utility model relates to a kind of lamp holder that is applicable to the arc tube for ceramic metal halide lamp of road lighting and adopts this electric arc tube.
Background technology
Be used for road lighting at present and still adopt high-pressure sodium lamp in a large number, quartz metal halide lamp is adopted near in recent years area, city in a large number, has minority to adopt commercial ceramic gold-halogen lamp.Used ceramic gold-halogen lamp adopts the spherical electric arc tube structure of commercial lighting mostly, no matter its ceramic arc tube shell is cylindrical or class is spherical, but all makes the point-source of light structure of short pole span.Though the light fixture of this class lamp is easy to design, and easily obtain comparatively ideal light distribution.But for the road lighting of viale, though near the very high illumination that is difficult for taking into account the road axis of this kind illuminator color index is suitable in this and not as the very ripe tubulose high-pressure sodium lamp with longer pole span and supporting light fixture thereof.Though can consider the electric arc tube pole span of ceramic gold-halogen lamp is elongated,, the arc tube for ceramic metal halide lamp of elongate tubular structure means that also starting resistor is higher because anode-cathode distance is long, therefore must do corresponding the improvement to the structure of electric arc tube.
Summary of the invention
The purpose of this utility model is to provide a kind of long pole span arc tube for ceramic metal halide lamp, and has solved owing to the long starting resistor problem of higher that produces of electric arc tube pole span.
For achieving the above object, the utility model has been taked following technical scheme:
Arc tube for ceramic metal halide lamp comprises cell-shell, electrode, and is filled in the gas in the cell-shell, and especially, the length diameter ratio of cell-shell also is provided with the conductive strips device that reduces the electric arc tube starting resistor in the cell-shell outside between 2.5 ~ 5.
Described conductive strips device is made of conducting ring and conducting film connecting band; Described conducting ring is enclosed within the root of the sleeve at cell-shell two ends; Described conducting film connecting band is electrically connected the conducting ring on the sleeve at cell-shell two ends.
The conducting film connecting band can be made by graphite or other refractory metal material film bands, perhaps uses filament, is wound on the cell-shell and the conducting ring on the sleeve of conducting two ends as tungsten, molybdenum, nickel, iron wire.
In addition, cell-shell should have higher intensity, to prevent explosion voluntarily under hot environment.The structure of cell-shell can adopt following scheme: the middle part of cell-shell is the cylindrical shape wall body, and its both sides are provided with symmetrically and are used for the sleeve that electrode passes through; The inwall of the position that the cylindrical shape wall body is connected with sleeve is for spherical, and the outer wall of the position that the cylindrical shape wall body is connected with sleeve is taper; Cylindrical shape wall body and sleeve are structure as a whole.Such cell-shell can adopt polycrystal alumina to make.
On electric arc tube, increase the conductive strips device, make trigger voltage focus near the electrode very among a small circle in, thereby electrode front end electric field significantly promotes, starting resistor significantly reduces, and has improved the reliability that lamp starts greatly.When fluorescent tube is installed, conductive strips can be placed a side of light fixture, then not influence light output and sight.
Such arc tube for ceramic metal halide lamp can be applicable in the lamp holder that road lighting uses.Electric arc tube is welded between the first electrode structure body and the second electrode structure body, and the first electrode structure body and the second electrode structure body are installed on the insulating electrode support.The insulating electrode support is positioned at an end of the transparent foam inside of airtight sealing.Structure body between insulating electrode support, electric arc tube, the first electrode structure body and second electrode is encapsulated in the inside of transparent foam together, charges into inert gas in transparent foam inside.
Because the light fixture that existing road lighting is used is in the majority with screw socket, thereby the mounting means of the configurable screw socket of ceramic gold-halogen lamp lamp holder of the utility model electric arc tube is housed: the first electrode structure body and the second electrode structure body pass the wall body of transparent foam, one of them electrode structure body is electrically connected with screw socket metalwork on being fixed on transparent foam one end outer wall, and another electrode structure body is electrically connected with the hard contact that is positioned at insulator cap central authorities.
Technique effect of the present utility model is: effective arc column ratio of this arc tube for ceramic metal halide lamp is much longer with the Metal halogen lamp of the short apsis light source of power, the also corresponding raising of luminous efficiency.And efficiently solve the too high problem of starting resistor that long pole span causes and the problem of cell-shell durability.Make when this electric arc tube is applied to broad road lighting the easier uniformity of taking illumination into account, the particularly illumination at road axis position.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the sectional view of cell-shell among Fig. 1;
Fig. 3 is the structural representation that the ceramic gold-halogen lamp lamp holder of the utility model embodiment 1 electric arc tube is housed.
Description of reference numerals: 1-electric arc tube; The 2-cell-shell; The 3a-electrode; The 3b-electrode; The 4a-conducting ring; The 4b-conducting ring; 5-conducting film connecting band; The 6a-sleeve; The 6b-sleeve; 7 cylindrical shape wall bodies; The 8-first electrode structure body; The 9-buffer substrate tablet; The 10-second electrode structure body; 11-insulating electrode support; The transparent foam of 12-; 13-screw socket metalwork; The 14-insulator cap; The 15-hard contact.
Embodiment
Below in conjunction with drawings and Examples the utility model content is described further.
As shown in Figure 1, this arc tube for ceramic metal halide lamp 1 comprises cell-shell 2, electrode 3a, electrode 3b, conducting ring 4a, conducting ring 4b and conducting film connecting band 5, in cell-shell 2 filling gas is arranged.Wherein, electrode 3a and electrode 3b pass the sleeve 6a at cell-shell 2 two ends, the inner chamber that sleeve 6b enters into cell-shell 2 respectively.At the root of two sleeves, be with individual conducting ring 4a, the conducting ring 4b that makes by graphite respectively, and have a conducting film connecting band 5 made from graphite equally that conducting ring and conducting ring are electrically connected.
Cell-shell 2 in the present embodiment is made with polycrystal alumina, and its structure as shown in Figure 2.The middle part of cell-shell 2 is a cylindrical shape wall body 7, and its both sides are provided with symmetrically and are used for sleeve 6a and the sleeve 6b that electrode 3a and electrode 3b pass through; The inwall of the position that cylindrical shape wall body 7 is connected with two sleeves is for spherical, and the outer wall of the position that cylindrical shape wall body 7 is connected with two sleeves is taper; Cylindrical shape wall body 7 is structure as a whole with sleeve 6a and sleeve 6b.Such cell-shell has high temperature strength preferably.
As shown in Figure 3, because the light fixture of road lighting generally adopts screw type to install, for adapting to this mounting means, electric arc tube in the present embodiment can be replaced the electric arc tube in the screw socket high-pressure sodium lamp of common tubular, thereby constitute the ceramic gold-halogen lamp lamp holder of a tubular so that road lighting from high-pressure sodium lamp to the ceramic gold-halogen lamp transition.Such ceramic gold-halogen lamp lamp holder can be made by the following method:
One end of electric arc tube 1 is welded on the first electrode structure body 8, and the other end of electric arc tube 1 is electrically connected by a buffer substrate tablet 9 and the second electrode structure body 10.The first electrode structure body 8 and the second electrode structure body 10 are installed on the insulating electrode support 11.Insulating electrode support 11 is positioned at an end of transparent foam 12 inside of airtight sealing.Structure body 10 between insulating electrode support 11, electric arc tube 1, the first electrode structure body 8 and second electrode is encapsulated in the inside of transparent foam 12 together, charges into inert gas in transparent foam 12 inside.The first electrode structure body 8 and the second electrode structure body 10 pass the wall body of transparent foam 12, wherein the first electrode structure body 8 is electrically connected with screw socket metalwork 13 on being fixed on transparent foam 12 1 end outer walls, and the second electrode structure body 10 is electrically connected with the hard contact 15 that is positioned at insulator cap 14 central authorities.
Present embodiment only is that the utility model is wherein preferred embodiment a kind of, and all equivalent technologies of being done under the utility model thinking or principle are replaced, and all belong to protection range of the present utility model.
Claims (8)
1, arc tube for ceramic metal halide lamp comprises cell-shell, electrode, and is filled in the gas in the cell-shell, it is characterized in that: the length diameter ratio of cell-shell also is provided with the conductive strips device that reduces the electric arc tube starting resistor in the cell-shell outside between 2.5 ~ 5.
2, arc tube for ceramic metal halide lamp according to claim 1 is characterized in that: described conductive strips device is made of conducting ring and conducting film connecting band; Described conducting ring is enclosed within the root of the sleeve at cell-shell two ends; Described conducting film connecting band is electrically connected the conducting ring on the sleeve at cell-shell two ends.
3, arc tube for ceramic metal halide lamp according to claim 2 is characterized in that: conducting ring and conducting film connecting band are made by graphite.
4, arc tube for ceramic metal halide lamp according to claim 2 is characterized in that: the conducting film connecting band turns to filament.
5, according to the arbitrary described arc tube for ceramic metal halide lamp of claim 1 to 4, it is characterized in that: the structure of cell-shell adopts following scheme: the middle part of cell-shell is the cylindrical shape wall body, and its both sides are provided with symmetrically and are used for the sleeve that support electrode passes through; The inwall of cylindrical shape wall body and sleeve connecting portion is spherical, and the outer wall of cylindrical shape wall body and sleeve connecting portion is taper; Cylindrical shape wall body and sleeve are structure as a whole.
6, arc tube for ceramic metal halide lamp according to claim 5 is characterized in that: cell-shell adopts polycrystalline alumina ceramic to make.
7, a kind of ceramic gold-halogen lamp lamp holder that the described electric arc tube of claim 1 is housed is characterized in that: electric arc tube is welded between the first electrode structure body and the second electrode structure body, and the described first electrode structure body and the second electrode structure body are installed on the insulating electrode support; Described insulating electrode support is positioned at an end of the transparent foam inside of airtight sealing, is encapsulated in the inside of transparent foam together with structure body between electric arc tube, the first electrode structure body and second electrode, charges into inert gas in transparent foam inside.
8, ceramic gold-halogen lamp lamp holder according to claim 7, it is characterized in that: the first electrode structure body and the second electrode structure body pass the wall body of transparent foam, one of them electrode structure body is electrically connected with screw socket metalwork on being fixed on transparent foam one end outer wall, and another electrode structure body is electrically connected with the hard contact that is positioned at insulator cap central authorities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054033U CN201392809Y (en) | 2009-04-07 | 2009-04-07 | Electric arc tube of ceramic metal halogen lamp for road illumination and lamp cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054033U CN201392809Y (en) | 2009-04-07 | 2009-04-07 | Electric arc tube of ceramic metal halogen lamp for road illumination and lamp cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392809Y true CN201392809Y (en) | 2010-01-27 |
Family
ID=41599630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920054033U Expired - Fee Related CN201392809Y (en) | 2009-04-07 | 2009-04-07 | Electric arc tube of ceramic metal halogen lamp for road illumination and lamp cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392809Y (en) |
-
2009
- 2009-04-07 CN CN200920054033U patent/CN201392809Y/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 | ||
| 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: 20100127 Termination date: 20160407 |