CN2648592Y - Metal haloid lamp arc tube - Google Patents
Metal haloid lamp arc tube Download PDFInfo
- Publication number
- CN2648592Y CN2648592Y CN 03258867 CN03258867U CN2648592Y CN 2648592 Y CN2648592 Y CN 2648592Y CN 03258867 CN03258867 CN 03258867 CN 03258867 U CN03258867 U CN 03258867U CN 2648592 Y CN2648592 Y CN 2648592Y
- Authority
- CN
- China
- Prior art keywords
- shell
- metal halide
- arc tube
- halide lamp
- tail pipe
- 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 an electrical apparatus industry, in particular to a metal halide lamp arc tube, comprising a semitransparent alumina ceramics shell. A conductive lead wire is respectively positioned at the two ends of the shell, an electrode is positioned at one end of the conductive wire that closes to the cavity of the shell. A certain amount of inert gas, mercury and metal halide such as Sc, Na, Tl, In, Dy, Ho and Tm are filled in the middle cavity. The shell is sintered by two pressing bodies, thereby overcoming the inherent defect of the quartz glass as a material for the shell of the metal halide lamp arc tube. Meanwhile the utility model has simple structure, convenience for manufacturing and easy guarantee for the consistency of the size, thereby greatly increasing the light, electrical and color performances of the metal halide lamp, the consistency and stability thereof, prolonging the service life of the lamp and filling the caps at home.
Description
Affiliated technical field
The utility model relates to electrical apparatus industry, particularly a kind of metal halide lamp electric arc tube.
Background technology
At present, the whole adopting quartz glass materials of domestic metal halide lamp electric arc tube shell are made, since quartz glass at high temperature can with the seepage of a series of chemical reaction of metal halide deposits yields and metal ion, cause the loss of metallic element and the corrosion of electrode, cause lamp in use firing voltage, arc drop and restart voltage and obviously raise, light decay is bigger, and photochromic drift is serious, influence the life-span, thereby limited the performance of lamp and the further raising in life-span.
Because chemical stability, corrosion resistance and the resistance to elevated temperatures of aluminium oxide ceramics obviously are better than quartz glass, in recent years, famous electric light source company of external a few family goes out the special aluminium oxide ceramics of huge fund exploitation as metal halide lamp electric arc tube sheathing material, and has obtained application.But its shell adopts five covers, three-piece or integral sintered forming mostly, but all has the problem of complex manufacturing technology, at present, and the domestic metal halide lamp production of also not making the electric arc tube shell with translucent alumina ceramics.
Summary of the invention
In order to fill the domestic gaps, overcome the deficiencies in the prior art, the utility model proposes a kind of new type of metal halide lamp arc tube.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of metal halide lamp electric arc tube, has shell, be provided with electrode in the shell, the electrode rear end is provided with conductive lead wire, shell is divided into thicker cylinder, elongated tail pipe and conical transition tube three parts, and electrode is arranged on conical transition tube position, and conductive lead wire is arranged in the elongated tail pipe, and extend to the outside, seal with glass solder with elongated tail pipe.
Further: described shell is formed by two sections, and two sections shells connect into integral body in thicker cylinder end interference fit.
Again further: the described elongated tail pipe and the joining place R arc transition of conical transition tube.
Also further: be filled with metal halides such as a certain amount of inert gas, mercury and at least a Sc, Na, Tl, In, Dy, Ho, Tm in the middle chamber of described shell.
The beneficial effects of the utility model are: overcome quartz glass as the intrinsic defective of metal halide lamp electric arc tube shell, it is simple in structure simultaneously, be convenient to make, dimensional uniformity is guaranteed easily, light, electricity, look performance and consistency thereof, the stability of metal halide lamp have been improved greatly, prolong the useful life of lamp, filled up domestic blank.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is another embodiment of shell of the present utility model.
Among the figure, 1, shell; 11, thicker cylinder; 12, elongated tail pipe; 13, conical transition tube; 2, electrode; 3, conductive lead wire; 4, glass solder.
Embodiment
A kind of metal halide lamp electric arc tube as shown in Figure 1, has translucent aluminium oxide ceramics shell 1, be provided with electrode 2 in the shell 1, electrode 2 rear ends are provided with conductive lead wire 3, conductive lead wire 3 adopts the anti-halid metal material suitable with the ceramic package coefficient of linear expansion to make, shell 1 is divided into thicker cylinder 11, elongated tail pipe 12 and conical transition tube 13 3 parts, with a compression moulding of mould, electrode 2 is arranged on conical transition tube 13 positions, conductive lead wire 3 is arranged in the elongated tail pipe 12, and extend to the outside, seal with glass solder 4 with elongated tail pipe 12, make its corrosion of avoiding metal halide, described shell 1 is formed by two sections, and two sections shells 1 connect into integral body in the end of thicker cylinder 11 interference fit.Two sections shapes are similar, but size difference, wherein one section cylinder 11 partial-lengths are shorter, external diameter is less, after the biscuiting of two sections difference, two sections cylinders, 11 parts are inserted mutually, high temperature burns till holistic translucent alumina ceramics shell 1 again, as shown in Figure 2, wherein one section is had only elongated tail pipe 12 and conical transition tube 13 2 parts, and the outer end diameter of conical transition tube 13 is slightly larger than the internal diameter of the cylinder 11 of another section, after the biscuiting of two sections difference, the internal diameter of the cylinder 11 of another section is inserted in the end of one section conical transition tube 13, and high temperature burns till holistic translucent alumina ceramics shell 1 again.The described elongated tail pipe 12 and the joining place R arc transition of conical transition tube 13 are with mechanical strength and the release lamp cold and hot stress in the course of the work that strengthens elongated tail pipe 12.Be filled with metal halides such as a certain amount of inert gas, mercury and at least a Sc, Na, Tl, In, Dy, Ho, Tm in the middle chamber of described shell 1.
The rated power of this metal halide lamp electric arc tube is 150W, the arc tube ceramic outer cover length is 50mm, cavity diameter is 9.2mm, and the cavity wall thickness is 1.1mm, and distance between electrodes is 12mm, be filled with metal halide 10mg such as Na, Dy, Ho, Tm in the cavity, mercury 10mg, inert gas pressure 2.7kpa, the colour temperature 4200K of lamp, color rendering index 90, light efficiency 80Lm/W.
Claims (4)
1, a kind of metal halide lamp electric arc tube, has shell (1), be provided with electrode (2) in the shell (1), electrode (2) rear end is provided with conductive lead wire (3), it is characterized in that: shell (1) is divided into thicker cylinder (11), elongated tail pipe (12) and conical transition tube (13) three parts, and electrode (2) is arranged on conical transition tube (13) position, and conductive lead wire (3) is arranged in the elongated tail pipe (12), and extend to the outside, seal with glass solder (4) with elongated tail pipe (12).
2, metal halide lamp electric arc tube according to claim 1 is characterized in that: described shell (1) is made up of two bodies, and connects into integral body in thicker cylinder (11) end interference fit.
3, metal halide lamp electric arc tube according to claim 1 is characterized in that: the described elongated tail pipe (12) and the joining place R arc transition of conical transition tube (13).
4, metal halide lamp electric arc tube according to claim 1 is characterized in that: be filled with at least a in the metal halide of a certain amount of inert gas, mercury and Sc, Na, T1, In, Dy, Ho, Tm in the middle chamber of described shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258867 CN2648592Y (en) | 2003-06-13 | 2003-06-13 | Metal haloid lamp arc tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258867 CN2648592Y (en) | 2003-06-13 | 2003-06-13 | Metal haloid lamp arc tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2648592Y true CN2648592Y (en) | 2004-10-13 |
Family
ID=34328971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03258867 Expired - Fee Related CN2648592Y (en) | 2003-06-13 | 2003-06-13 | Metal haloid lamp arc tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2648592Y (en) |
-
2003
- 2003-06-13 CN CN 03258867 patent/CN2648592Y/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 |