CN203617252U - Electrode assembly of high voltage sodium lamp - Google Patents
Electrode assembly of high voltage sodium lamp Download PDFInfo
- Publication number
- CN203617252U CN203617252U CN201320749817.XU CN201320749817U CN203617252U CN 203617252 U CN203617252 U CN 203617252U CN 201320749817 U CN201320749817 U CN 201320749817U CN 203617252 U CN203617252 U CN 203617252U
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- niobium
- sodium lamp
- electrode
- tube
- circular
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Abstract
The utility model discloses an electrode assembly of a high voltage sodium lamp. The electrode assembly of the high voltage sodium lamp comprises an electrode and a circular niobium tube, an electrode lead is welded to an end part of the niobium tube and seals the end part of the niobium to form a blind tube, a niobium tube positioning special-shaped section is arranged in a middle part of the niobium tube, the positioning special-shaped section is one which is formed by extruding the circular niobium tube and whose section is a regular triangle, the center of the triangle coincides with the axis center of the niobium tube, and three vertexes of the triangle protrudes from a circumferential surface of the circular niobium tube, thereby forming positioning projections. The electrode assembly of the high voltage sodium lamp is simple in structure and low in manufacturing cost, the electrode can be accurately positioned in an electric arc tube, distance of two electrode discharge ends in the electric arc tube can be precisely controlled, and the high voltage sodium lamp that is produced is stable in quality and has a long service life.
Description
Technical field
The utility model relates to gaseous discharge lamp technical field, especially a kind of electrode assemblie of high-pressure sodium lamp.
Background technology
High-pressure sodium lamp has that luminous efficiency is high, little power consumption, life-span are long, mist transmitting performance lures the advantages such as worm by force and not, is widely used in road, highway, airport, harbour, dock, station, square, industrial and mining enterprises, park, garden illumination and plant culture.In high-pressure sodium lamp, the relative distance of two electrode discharge ends determines the length of electric arc, also affect optical parameter and the life-span of high-pressure sodium lamp, therefore, the distance of two electrode discharge ends directly determines the quality of high-pressure sodium lamp, and in the assembling process of high-pressure sodium lamp, electrode location is fixing is also operation the most accurate in all process steps.In the production process of high-pressure sodium lamp, in order to control the distance of two electrode discharge ends in electric arc tube, conventionally adopt, on the niobium pipe of electrode assemblie, positioner is set, make electrode tip and electric arc tube end keep fixing distance, thereby reach the object of controlling two electrode tip distances.The positioner arranging on niobium pipe in prior art mostly is 3 wire drawing positioners, spends shovel vertically at the excircle wall interval 120 of niobium pipe and scrapes three positioning convex points, is determined the relative position of electrode and electric arc tube by these three positioning convex points.Because the tungsten filament material that electrode tip is high-temperature process is made, forming in positioning convex point process, need to fix tungsten filament electrode tip, shovel and scrape to niobium pipe direction, easily cause tungsten filament electrode fracture, increase percent defective.In addition, while forming positioning convex point due to 3 wire drawing modes of employing, be take niobium tube opening end as datum mark, therefore, the error being welded and fixed between electrode and niobium pipe has also caused the error of two interelectrode distances in electric arc tube, affect the accuracy of two electrode discharge end distances in electric arc tube and same pressure sodium lamp with a high standard one to property.
Utility model content
The technical problem that utility model will solve is: the electrode assemblie that a kind of high-pressure sodium lamp is provided, the electrode assemblie of this high-pressure sodium lamp is simple in structure, low cost of manufacture, the electrode assemblie of this high-pressure sodium lamp can navigate to electrode in electric arc tube exactly, can accurately control the distance of two electrode discharge ends in electric arc tube, high-pressure sodium lamp steady quality, the long service life of producing.
The technical scheme that technical solution problem is taked: a kind of electrode assemblie of high-pressure sodium lamp, comprise electrode and circular niobium pipe, contact conductor is welded on niobium tube end and the sealing of niobium tube end is formed to blind pipe, be provided with niobium pipe location abnormity section at niobium pipe middle part, the location abnormity section that the cross section that special-shaped section of the described location circular niobium pipe of serving as reasons is squeezed into is equilateral triangle, the axis coinciding of leg-of-mutton center and niobium pipe, circular niobium pipe periphery is protruded on leg-of-mutton three summits, forms positioning convex.
As improvement of the present utility model: niobium pipe location abnormity section is 0.5-2 millimeters along niobium tube axis direction length.
As further improvement of the utility model: the niobium pipe location each raised tip of abnormity section has circular arc transition.
Beneficial effect: high-pressure sodium lamp electrode assemblie of the present utility model is owing to having adopted the electrode assemblie of described high-pressure sodium lamp, comprise electrode and circular niobium pipe, contact conductor is welded on niobium tube end and the sealing of niobium tube end is formed to blind pipe, be provided with niobium pipe location abnormity section at niobium pipe middle part, the location abnormity section that the cross section that special-shaped section of the described location circular niobium pipe of serving as reasons is squeezed into is equilateral triangle, the axis coinciding of leg-of-mutton center and niobium pipe, circular niobium pipe periphery is protruded on leg-of-mutton three summits, form the technical scheme of positioning convex, by forming location abnormity section at niobium pipe middle part by three extruding, by three positioning convex of locating abnormity section, electrode assemblie and electric arc tube are located fast, therefore, high-pressure sodium lamp electrode assemblie of the present utility model has simple in structure, the advantage of low cost of manufacture, owing to adopting fashion of extrusion to form abnormity section, realize in process of production the position of determining location abnormity section take electrode discharge end as benchmark, the electrode assemblie of high-pressure sodium lamp of the present utility model can be navigated to electrode in electric arc tube exactly, and can accurately control the distance of two electrode discharge ends in electric arc tube, in addition, due in the forming process of location abnormity section, electrode tungsten filament can not be subject to External Force Acting, can there is not fracture or distortion, make the high-pressure sodium lamp steady quality that adopts high-pressure sodium lamp electrode assemblie of the present utility model to produce, long service life.Owing to having adopted the technical characterictic that niobium pipe location abnormity section is 0.5-2 millimeters along niobium tube axis direction length, guaranteeing the pinpoint while of electrode assemblie, reduce to greatest extent the impact of location abnormity section on whole electrode assemblie, make the high-pressure sodium lamp better quality that adopts high-pressure sodium lamp electrode assemblie of the present utility model to produce.Owing to having adopted the niobium pipe location each raised tip of abnormity section to there is the technical characterictic of circular arc transition, avoid electrode assemblie to cause cut on other zero surface in assembling process, also avoid sharp-pointed projection to scratch assembly crewman, improve the fail safe of producing.
Accompanying drawing explanation
Below in conjunction with embodiment, high-pressure sodium lamp electrode assemblie of the present utility model is described in further detail.
Fig. 1 is the front view of high-pressure sodium lamp electrode assemblie of the present utility model;
Fig. 2 is that the A-A of Fig. 1 high-pressure sodium lamp electrode assemblie is to cutaway view.
Embodiment
As shown in Figure 1, the electrode assemblie of high-pressure sodium lamp of the present utility model, comprise electrode 1 and circular niobium pipe 3, contact conductor 2 is welded on niobium tube end and the sealing of niobium tube end is formed to blind pipe, be provided with niobium pipe location abnormity section 4 at niobium pipe middle part, niobium pipe location abnormity section is 0.5-2 millimeters along niobium tube axis direction length.
As shown in Figure 2, the location abnormity section that the cross section that special-shaped section 4 of the described location circular niobium pipe 3 of serving as reasons is squeezed into is equilateral triangle, the axis coinciding of leg-of-mutton center and niobium pipe, circular niobium pipe periphery is protruded on leg-of-mutton three summits, form positioning convex, the niobium pipe location each raised tip of abnormity section has circular arc transition.
Claims (3)
1. the electrode assemblie of a high-pressure sodium lamp, comprise electrode and circular niobium pipe, contact conductor is welded on niobium tube end and the sealing of niobium tube end is formed to blind pipe, it is characterized in that: be provided with niobium pipe location abnormity section at niobium pipe middle part, the location abnormity section that the cross section that special-shaped section of the described location circular niobium pipe of serving as reasons is squeezed into is equilateral triangle, the axis coinciding of leg-of-mutton center and niobium pipe, circular niobium pipe periphery is protruded on leg-of-mutton three summits, forms positioning convex.
2. the electrode assemblie of high-pressure sodium lamp according to claim 1, is characterized in that: niobium pipe location abnormity section is 0.5-2 millimeter along niobium tube axis direction length.
3. the electrode assemblie of high-pressure sodium lamp according to claim 1 and 2, is characterized in that: the niobium pipe location each raised tip of abnormity section has circular arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749817.XU CN203617252U (en) | 2013-11-25 | 2013-11-25 | Electrode assembly of high voltage sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749817.XU CN203617252U (en) | 2013-11-25 | 2013-11-25 | Electrode assembly of high voltage sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617252U true CN203617252U (en) | 2014-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749817.XU Expired - Fee Related CN203617252U (en) | 2013-11-25 | 2013-11-25 | Electrode assembly of high voltage sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606511A (en) * | 2013-11-25 | 2014-02-26 | 辽宁爱华照明科技股份有限公司 | Electrode assembly of high pressure sodium lamp |
-
2013
- 2013-11-25 CN CN201320749817.XU patent/CN203617252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606511A (en) * | 2013-11-25 | 2014-02-26 | 辽宁爱华照明科技股份有限公司 | Electrode assembly of high pressure sodium lamp |
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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 |
Granted publication date: 20140528 Termination date: 20151125 |