CN202651063U - A ceramic tube used for a metal halide lamp - Google Patents
A ceramic tube used for a metal halide lamp Download PDFInfo
- Publication number
- CN202651063U CN202651063U CN 201220268879 CN201220268879U CN202651063U CN 202651063 U CN202651063 U CN 202651063U CN 201220268879 CN201220268879 CN 201220268879 CN 201220268879 U CN201220268879 U CN 201220268879U CN 202651063 U CN202651063 U CN 202651063U
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- CN
- China
- Prior art keywords
- metal halide
- halide lamp
- circular body
- ceramic tube
- ceramic
- 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
Provided is a ceramic tube used for a metal halide lamp. The ceramic tube comprises a circular tube body equipped with two opening ends and two end caps arranged on the two ends of the circular tube body. The ceramic tube is characterized in that each end cap is formed by a slender tube used for leading out an electrode and an arc-shaped ceramic cap sealed together with the circular tube body.
Description
Technical field
The utility model relates to illumination and uses ceramic field, refers to especially ceramic tube for metal halide lamp.
Background technology
Metal halide lamp is the energy-saving lighting fitting of middle 1990s exploitation, although existing had more novel energy-saving lamp to come out, because being subjected to the restriction of technology etc., the metal current halide lamp still is that main energy-saving lighting lamp is in use.
The metal halide fluorescent tube that now uses is take quartz glass as main, the luminescent substance of metal halide lamp mainly is rare earth metal, under the luminance temperature of electrode, can produce certain chemical reaction with quartz glass, although this sluggish, but after accumulation after a while, also can cause the obvious minimizing of luminescent substance, the light decay phenomenon appears in metal halide lamp, and this is the main cause that affects silica glass material service life of metal halide lamp and light efficiency.
The shell of existing a part of metal halide lamp uses earthenware, but exists structure than challenge, causes cost high.
On the other hand, the tubule that the existing earthenware that uses is used for the receiving electrode part adopts the circular arc type bridging mode to connect with body, and circular arc portion can affect light transmittance because of the light-transmission angles problem.
The utility model content
The purpose of this utility model provides a kind of ceramic tube for metal halide lamp, and production process is simple, can effectively control the steady quality of cavity and guarantee the even of earthenware light transmittance.
The utility model is achieved through the following technical solutions:
Ceramic tube for metal halide lamp includes the circular body of both ends open and is arranged at two plugs at circular body two ends, and each plug consists of by the tubule that is used for extraction electrode and with the circular arc ceramic cap of circular body sealing-in.
Described two plug size shape are identical, and described ceramic cap can be semicircular arc-shaped.
Described two plugs are identical with the external diameter of circular body with near the external diameter sealing-in place of circular body.
The wall thickness of described circular body is 1.25 times of the wall thickness of plug.
The wall thickness of described circular body is 0.7-1.1mm.
The beneficial effects of the utility model are:
1, the utility model can effectively delay the light decay phenomenon of metal halide lamp.
2, the utility model is simple in structure, is convenient to manufacturing and operation few.
3, the integral light-transmitting of earthenware of the present utility model is even, has reduced the light lamination problem.
Description of drawings
Fig. 1, the utility model structural representation;
Fig. 2, the utility model band plug and band tubule section axial profile.
11, circular body 12,13, plug 14,15, tubule
16,17, electrode
Embodiment
Describe concrete technical scheme of the present utility model in detail below in conjunction with accompanying drawing, specific embodiment of the utility model only is exemplary, can only be used for explaining the utility model and can not be interpreted as to be to restriction of the present utility model.
Ceramic tube for metal halide lamp, include the circular body 11 and two plugs (12,13) that are arranged at circular body two ends of both ends open, each plug is by being used for extraction electrode (16,17) tubule (14,15) and consist of with the circular arc ceramic cap of circular body sealing-in.
Described two plug size shape are identical, and described ceramic cap can be semicircular arc-shaped.In other embodiment of the present utility model, two plug size shape can be not identical.
Described two plugs are identical with the external diameter of circular body with near the external diameter sealing-in place of circular body.In other embodiment of the present utility model, the external diameter of plug can be less than the external diameter of circular body.
The wall thickness of described circular body is 1.25 times of the wall thickness of plug.
The wall thickness of described circular body is 0.7-1.1mm.
The selected earthenware of the utility model is alumina ceramic tube, its manufacture method is, circular body and plug are made base substrate with mould respectively, described plug and tubule are by the mould one-shot forming, base substrate is carried out biscuiting and binder removal or degreasing, the biscuiting temperature of circular body will be lower than the biscuiting temperature of plug, and temperature differs about 200 degrees centigrade generally speaking.The plug of biscuiting is carried out sintering again with last moulding after with circular body assembling.
The above only is the specific descriptions to technical solutions of the utility model, and those skilled in the art can improve according to the technical program certainly, and these improvement should be considered in the protection range of the present utility model.
Claims (5)
1. ceramic tube for metal halide lamp includes the circular body of both ends open and is arranged at two plugs at circular body two ends, it is characterized in that: each plug consists of by the tubule that is used for extraction electrode and with the circular arc ceramic cap of circular body sealing-in.
2. ceramic tube for metal halide lamp according to claim 1, it is characterized in that: described two plug size shape are identical, and described ceramic cap can be semicircular arc-shaped.
3. ceramic tube for metal halide lamp according to claim 1 and 2, it is characterized in that: described two plugs are identical with the external diameter of circular body with near the external diameter sealing-in place of circular body.
4. ceramic tube for metal halide lamp according to claim 1 and 2 is characterized in that: the wall thickness of described circular body is 1.25 times of the wall thickness of plug.
5. ceramic tube for metal halide lamp according to claim 1, it is characterized in that: the wall thickness of described circular body is 0.7-1.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268879 CN202651063U (en) | 2012-06-06 | 2012-06-06 | A ceramic tube used for a metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268879 CN202651063U (en) | 2012-06-06 | 2012-06-06 | A ceramic tube used for a metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651063U true CN202651063U (en) | 2013-01-02 |
Family
ID=47420128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220268879 Expired - Fee Related CN202651063U (en) | 2012-06-06 | 2012-06-06 | A ceramic tube used for a metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651063U (en) |
-
2012
- 2012-06-06 CN CN 201220268879 patent/CN202651063U/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: 20130102 Termination date: 20170606 |