CN201153107Y - Ceramic tube for metal halide lamp - Google Patents
Ceramic tube for metal halide lamp Download PDFInfo
- Publication number
- CN201153107Y CN201153107Y CNU2008200312319U CN200820031231U CN201153107Y CN 201153107 Y CN201153107 Y CN 201153107Y CN U2008200312319 U CNU2008200312319 U CN U2008200312319U CN 200820031231 U CN200820031231 U CN 200820031231U CN 201153107 Y CN201153107 Y CN 201153107Y
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- CN
- China
- Prior art keywords
- ceramic
- straight tube
- tube
- ceramic straight
- sealing
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- 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 ceramic tube used for a metal halide lamp, which is provided with a ceramic straight tube with openings at two ends. Both ends of the ceramic straight tube are respectively connected with an airproof ceramic stopper, and an eduction tube is arranged on each airproof ceramic stopper; the eduction tubes are in rabbet joint on the corresponding airproof ceramic stopper; the connection between the two airproof ceramic stoppers and the ceramic straight tube is a positioning rabbet joint. The ceramic straight tube, the airproof ceramic stoppers and the eduction tubes are all in simple and standard geometrical shapes, thereby being easily produced in batch and accurately controlling the size. The inner wall of the ceramic straight tube is provided with a locating surface which is convenient for the manufacture and the control of the ceramic tube in the last molding, and the locating surface increases the sealing surface of the ceramic straight tube and the airproof ceramic stoppers, thereby improving the reliability of the sealing. The eduction tubes are separate parts which are formed specially with high precision and are easy to be sealed with the eduction line of an electrode.
Description
Technical field
The utility model relates to a kind of metal halide lamp earthenware.
Background technology
It is long that metal halide lamp has the light efficiency high life, and the color rendering index advantages of higher is widely used and the station, harbour, and road, the airport, the warehouse, the every field of indoor and outdoor lighting such as market is described as the third generation in the world lighting source.The discharge tube of metal halide lamp generally is divided into quartz ampoule and alumina ceramic tube according to the difference of material, with respect to quartz ampoule, because alumina ceramic tube has better chemical stability, under the working temperature with lamp in metal halide reaction not obvious, thereby metal halide lamp is worked under higher temperature and make light efficiency be higher than quartz ampoule more than 15%, have higher stability, photoelectric parameter is kept better, makes aluminium oxide ceramics be in control increasing application.But because the characteristic of aluminium oxide ceramics, make the earthenware difficult forming, it is low to produce qualification rate in batches, and discharge tube cavity physical dimension is accurate inadequately.
The utility model content
The purpose of this utility model be to provide a kind of manufacturing simple, produce qualification rate height, the accurate metal halide lamp earthenware of discharge tube cavity physical dimension in batches.
The technical scheme that realizes the utility model purpose is: the utlity model has the ceramic straight tube of both ends open, ceramic straight tube two ends respectively are connected with a sealing porcelain plug, and each sealing porcelain is provided with extraction tube beyond the Great Wall; Described each extraction tube interlocking seals porcelain beyond the Great Wall in correspondence, and rabbet the location that is connected to of two sealing porcelain plugs and ceramic straight tube.
Above-mentioned metal halide lamp is equipped with connecting portion with the ceramic straight tube two openend inwalls of earthenware, and the connecting portion internal diameter forms the locating surface perpendicular to ceramic straight tube greater than ceramic straight tube internal diameter between connecting portion and the ceramic straight tube inwall; Sealing porcelain plug is an annular, and described sealing porcelain plug is to rabbet in the connecting portion corresponding in ceramic straight tube by each sealing porcelain plug with the location interlocking of ceramic straight tube, and respectively seals porcelain plug inner face and be close to that the corresponding locating surface of ceramic straight tube realizes; The centre bore of annular seal porcelain plug and extraction tube are interference fit, and the extraction tube interlocking is in the centre bore of correspondence sealing porcelain plug.
Above-mentioned metal halide lamp with the shoulder height that forms between the connecting portion of the ceramic straight tube of earthenware and the ceramic straight tube inwall between 0.1～1 millimeter.
The utlity model has following characteristics:
(1) ceramic straight tube of the present utility model, sealing porcelain plug and extraction tube are the geometry of simple type identifier, are easy to make in batches, accurately controlling dimension.
(2) ceramic straight tube inwall of the present utility model has locating surface, processing and manufacturing and control when being convenient to the last moulding of earthenware, and locating surface increased the sealing surface of ceramic straight tube and sealing porcelain plug, improved the sealing-in reliability.
(3) extraction tube is an individual part in the utility model, special moulding, and the precision height is easy to the sealing-in with electrode outlet line.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an A place enlarged drawing among Fig. 1.
Fig. 3 is the earthenware cutaway view after connecting.
Embodiment
(embodiment 1)
See Fig. 1 to Fig. 3, the utlity model has the ceramic straight tube 1 of both ends open, ceramic straight tube 1 two ends respectively are provided with a sealing porcelain plug 2, and each sealing porcelain plug 2 is provided with extraction tube 3; 1 liang of openend inwall of pottery straight tube is equipped with connecting portion 11, connecting portion 11 internal diameter a are greater than ceramic straight tube 1 internal diameter b, form the locating surface 12 perpendicular to ceramic straight tube 1 between connecting portion 11 and ceramic straight tube 1 inwall, the shoulder height that forms between the connecting portion 11 of ceramic straight tube 1 and ceramic straight tube 1 inwall is between 0.1～1 millimeter; Sealing porcelain plug 2 is an annular, sealing porcelain plug 2 is an interference fit with the connecting portion 11 of ceramic straight tube 1, respectively seal during connection in the connecting portion 11 of porcelain plug 2 interlockings correspondence in ceramic straight tube 1, and sealing porcelain plug 2 inner faces are close to the corresponding locating surface 12 of ceramic straight tube 1, the centre bore internal diameter of extraction tube 3 external diameters and annular seal porcelain plug 2 is an interference fit, rabbets during connection in the centre bore on correspondence sealing porcelain plug 2.
Metal halide lamp discharge tube of the present utility model is by ceramic discharge tube and enclose that pair of electrodes constitutes in it, charges into metal halide in the ceramic discharge tube shell, mercury and start gas.Electrode is finished hermetic seal by niobium lead-out wire and discharge tube two ends extraction tube 3 by oxide solder.Pottery straight tube 1, sealing porcelain plug 2 and extraction tube 3 are respectively independent part, because each part is the geometry of simple type identifier, thus be easy to make in batches, and accurate controlling dimension.Produce when installing, pottery straight tube 1, extraction tube 3 are by mould compacting or extrusion molding, sealing porcelain plug 2 is by mould compression moulding, in different temperatures next time after the sinter molding, earlier extraction tube 3 being inserted adopts interference fit method to connect in the centre bore that seals porcelain plug 2, one-shot forming is at high temperature afterwards inserted the sealing porcelain plug 2 after the moulding, extraction tube 3 assemblies in the connecting portion 11 of ceramic straight tube 1 again, and is as a whole by back, the locating surface 12 location high temperature sintering of ceramic straight tube 1.
Claims (3)
1, a kind of metal halide lamp earthenware has the ceramic straight tube (1) of both ends open, and ceramic straight tube (1) two ends respectively are connected with a sealing porcelain plug (2), and each sealing porcelain plug (2) is provided with extraction tube (3); It is characterized in that: described each extraction tube (3) interlocking is on correspondence sealing porcelain plug (2), and two sealing porcelain plugs (2) are located interlocking with being connected to of ceramic straight tube (1).
2, metal halide lamp earthenware according to claim 1, it is characterized in that: described ceramic straight tube (1) two openend inwall is equipped with connecting portion (11), connecting portion (11) internal diameter (a) forms the locating surface (12) perpendicular to ceramic straight tube (1) greater than ceramic straight tube (1) internal diameter (b) between connecting portion (11) and ceramic straight tube (1) inwall; Sealing porcelain plug (2) is an annular, the interlocking of described sealing porcelain plug (2) and ceramic straight tube (1) location be by each sealing porcelain plug (2) interlocking in ceramic straight tube (1) in the corresponding connecting portion (11), and respectively seal porcelain plug (2) inner face and be close to that the corresponding locating surface (12) of ceramic straight tube (1) realizes; The centre bore of annular seal porcelain plug (2) and extraction tube (3) are interference fit, and extraction tube (3) interlocking is in the centre bore of correspondence sealing porcelain plug (2).
3, metal halide lamp earthenware according to claim 2 is characterized in that: the shoulder height that forms between the connecting portion (11) of described ceramic straight tube (1) and ceramic straight tube (1) inwall is between 0.1～1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200312319U CN201153107Y (en) | 2008-01-18 | 2008-01-18 | Ceramic tube for metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200312319U CN201153107Y (en) | 2008-01-18 | 2008-01-18 | Ceramic tube for metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201153107Y true CN201153107Y (en) | 2008-11-19 |
Family
ID=40128782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200312319U Expired - Fee Related CN201153107Y (en) | 2008-01-18 | 2008-01-18 | Ceramic tube for metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201153107Y (en) |
-
2008
- 2008-01-18 CN CNU2008200312319U patent/CN201153107Y/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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Plus Lighting (Jiangsu) Co., Ltd. Assignor: Jiangsu Plus Electric Appliance Co., Ltd. Contract record no.: 2010320000545 Denomination of utility model: Ceramic tube for metal halide lamp Granted publication date: 20081119 License type: Exclusive License Record date: 20100506 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20120118 |