CN2612059Y - Filament joint of high voltage sodium lamp - Google Patents
Filament joint of high voltage sodium lamp Download PDFInfo
- Publication number
- CN2612059Y CN2612059Y CN 03230758 CN03230758U CN2612059Y CN 2612059 Y CN2612059 Y CN 2612059Y CN 03230758 CN03230758 CN 03230758 CN 03230758 U CN03230758 U CN 03230758U CN 2612059 Y CN2612059 Y CN 2612059Y
- Authority
- CN
- China
- Prior art keywords
- filament
- sodium lamp
- utility
- model
- joint
- 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
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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The utility model relates to a high-voltage sodium lamp filament novel connector, comprising a tube composed of at least two connected diameter-variable hollow tubes, and a cup interface for connecting filament. Via using the cup interface to connect filament, the utility model can overcome the problem of prior art which welds the filament and the adaptor to leak easily. And the utility model uses connected at least two diameter-variable hollow tubes to form a tube to improve the sealing property between welded tube and glass, with significant buffer function on the thermal expansion and cold reduction between the filament adaptor and the glass, thereby prolonging the service life of bulb, with high practicality and wide application in various high-voltage sodium lamps.
Description
Technical field
The utility model relates to a kind of high-pressure sodium lamp filament joint, the novel joint of particularly a kind of high-pressure sodium lamp filament.
Background technology
As everyone knows, the quality of the filament joint of high-pressure sodium lamp is one of key factor that influences the high-pressure sodium lamp bulb life.Present widely used high-pressure sodium lamp filament joint is straight elongated tubing, an end and filament welding, and the other end and extraction electrode welding will be if failure welding will cause luminous tube to leak and scrap.In addition, the welding of filament joint outer wall and glass tube, owing to there are differences between the coefficient of expansion of filament joint and glass, through the use of an end time, the filament joint that causes by the expanding with heat and contract with cold phenomenon that gets loose can hardly be avoided, and also can influence the useful life of bulb.
Summary of the invention
Technical problem to be solved in the utility model provides the novel joint of a kind of high-pressure sodium lamp filament, can prevent weld leakage and remedied because the defective that the filament joint that the phenomenon of expanding with heat and contract with cold is brought gets loose.
The technical solution of the utility model:
A kind of high-pressure sodium lamp filament joint comprises that one is used to connect the cup-shaped interface of filament and the tubing that the interconnective hollow tube that two or more become diameter is formed.
As seen from the above technical solution, the utlity model has fairly obvious advantage.Owing to adopted the cup-shaped interface to be connected with filament, the utility model overcome in the past filament and joint between the luminous tube that caused of soldered leakage scrap problem.In addition, the tubing that adopts the interconnective hollow tube that two or more become diameter to form, can make the sealing of tubing and glass welding significantly improve, and the phenomenon of expanding with heat and contract with cold between this filament joint and the glass had significant cushioning effect, thereby prolonged the useful life of bulb, for a kind of filament joint, can be widely used in all kinds of high-pressure sodium lamps with big practical value.
Description of drawings
Fig. 1 is the structural representation of the novel joint of the utility model high-pressure sodium lamp filament.
Embodiment
As seen from Figure 1, filament joint of the present utility model comprises the tubular body 1 that the interconnective hollow tube that two or more become diameter is formed, and its top is provided with and is used for the cup-shaped interface 3 that filament connects, and tubular body 1 interconnects by circular arc 2.
According to the utility model optimized technical scheme, the quantity of said tubular body 1 is two, its cross section be shaped as circle.
Claims (4)
1. a high-pressure sodium lamp filament joint is characterized in that, comprises a tubing (1) and a cup-shaped interface (3) that is used to be connected filament that the interconnective hollow tube that two or more become diameter is formed.
2. high-pressure sodium lamp filament joint according to claim 1 is characterized in that described tubing (1) interconnects by circular arc (2).
3. high-pressure sodium lamp filament joint according to claim 1 is characterized in that, described tubing (1) is made up of two hollow tubes that become diameter.
4. according to claim 1,2 or 3 described high-pressure sodium lamp filament joints, it is characterized in that, said tubing (1) cross section be shaped as circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230758 CN2612059Y (en) | 2003-04-28 | 2003-04-28 | Filament joint of high voltage sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230758 CN2612059Y (en) | 2003-04-28 | 2003-04-28 | Filament joint of high voltage sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612059Y true CN2612059Y (en) | 2004-04-14 |
Family
ID=34165363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03230758 Expired - Fee Related CN2612059Y (en) | 2003-04-28 | 2003-04-28 | Filament joint of high voltage sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612059Y (en) |
-
2003
- 2003-04-28 CN CN 03230758 patent/CN2612059Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |