CN201084699Y - A metal halide lamp with ceramic discharging tube - Google Patents
A metal halide lamp with ceramic discharging tube Download PDFInfo
- Publication number
- CN201084699Y CN201084699Y CNU2007200724155U CN200720072415U CN201084699Y CN 201084699 Y CN201084699 Y CN 201084699Y CN U2007200724155 U CNU2007200724155 U CN U2007200724155U CN 200720072415 U CN200720072415 U CN 200720072415U CN 201084699 Y CN201084699 Y CN 201084699Y
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- CN
- China
- Prior art keywords
- discharge tube
- outlet line
- ceramic discharge
- electrode
- metal halide
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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 discloses a metal halide lamp with a ceramic discharge tube, comprising an electrode arranged in the ceramic discharge tube, and an electrode outgoing wire arranged outside the ceramic discharge tube and connected with the electrode, which is characterized in that: a reinforcing sleeve is sleeved on the electrode outgoing wire, which is tightly fitted with the reinforcing sleeve; the reinforcing sleeve can be a section of helical wire formed by winding a segment of molybdenum wire. By arranging a section of reinforcing sleeve on the electrode outgoing wire and tightly wrapping the reinforcing sleeve on the electrode outgoing wire, the utility model has the advantages of enhancing the strength of the electrode outgoing wire, preventing the electrode outgoing wire from brittle failure in the subsequent process or during transportation, and ensuring the good electric conductance of the electrode outgoing wire.
Description
Technical field
The utility model relates to a kind of metal halide lamp that has ceramic discharge tube.
Background technology
In recent years, adopt the metal halide lamp of semi-transparent polycrystal aluminium oxide ceramic material to obtain fast development, market prospects are wide, but manufacturing process is still needed and groped to improve.The typical process for sealing of this ceramic gold-halogen lamp discharge tube is: the electrode outlet line that the niobium silk is made by scolder at high temperature with the airtight sealing-in of earthenware because the thermal coefficient of expansion of niobium and aluminium oxide ceramics is the most approaching in refractory metal.Owing to can become fragile through niobium silk behind the high temperature, thereby be assembled in the operation of bulb, or in the bulb handling process, the niobium silk that becomes fragile is very easy to brittle failure at discharge tube.In the ceramic gold-halogen lamp of small-sized small-power, extra small power (below the 70W), niobium silk itself is just very thin, and behind sealing-in high temperature, the brittle failure probability is high in subsequent operation or carrying, can't adapt to the normal manufacturing and the use of lamp.So, under the condition of existing electrode basic structure and process for sealing, must improve the design of electrode outlet line.
The utility model content
The technical problems to be solved in the utility model provides the metal halide lamp that a kind of electrode outlet line is difficult for taking place brittle failure.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of metal halide lamp that has ceramic discharge tube, comprise the electrode that is positioned at ceramic discharge tube and be positioned at the electrode outlet line that ceramic discharge tube is outer and be connected with described electrode, be with one section reinforcing sleeve on the described electrode outlet line, between described reinforcing sleeve and the electrode outlet line for closely cooperating.
The utility model is provided with one section reinforcing sleeve on electrode outlet line, reinforcing sleeve closely is wrapped on the electrode outlet line, its role is to increase the intensity of electrode outlet line, prevent electrode outlet line brittle failure in subsequent handling or handling process, guarantee the good electrical conducting of contact conductor.
Above-mentioned electrode outlet line can be made by the niobium silk.
Preferably, described reinforcing sleeve is a section spiral line that is wrapped on the electrode outlet line.
Preferably, the end near electrode on the described electrode outlet line also is fixed with a locating ring, is convenient to the location of electrode outlet line when welding with ceramic discharge tube.
Further, above-mentioned locating ring is made by molybdenum filament.
Further, above-mentioned reinforcing sleeve is a section spiral line that is wrapped on the electrode outlet line.
More preferably, above-mentioned helix can be made by molybdenum filament.
More preferably, described helix is fixed on the electrode outlet line by its two ends and middle solder joint.
More preferably, described electrode outlet line is fixed on the ceramic discharge tube by scolder.
Optimally, the length of described helix is less than the length of electrode outlet line beyond the locating ring, and more than or equal to 1.5 times of scolder length; The inner of described helix is to the distance of the locating ring length smaller or equal to scolder, and more than or equal to 1.2 times of scolder original shape thickness.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the ceramic discharge tube portion of the utility model metal halide lamp.
Fig. 2 is the structural representation of electrode outlet line part.
Embodiment
As shown in Figure 1, two electrodes 2 are positioned at ceramic discharge tube 1, the outside of ceramic discharge tube 1 is provided with two electrode outlet lines 5 and is connected with two electrodes 2 respectively, the end of electrode outlet line 5 and ceramic discharge tube 1 is filled with metal halide, mercury and inert gas by scolder 3 airtight sealing-ins in the airtight ceramic cavity of formation.
As shown in Figure 2, electrode outlet line 5 and electrode 2 weld together, electrode 2 can be any design that is fit to the ceramic gold-halogen lamp discharge tube, and reinforcing sleeve be by molybdenum filament closely be wrapped in institute's shape on the contact conductor 5 a section spiral line 6, molybdenum filament helix 6 by head at least, in, tail three means of spot welds are on electrode outlet line 5, spiral itself can be close around also can dredge around, its role is to increase the intensity of niobium silk behind the high temperature, prevent the brittle failure in subsequent handling or handling process of niobium silk, guarantee the good electrical conducting of electrode outlet line 5.
End near electrode 2 on the electrode outlet line 5 also is fixed with a locating ring 7, and locating ring 7 also is to be made by molybdenum filament, and it is to be convenient to realize accurately location at electrode outlet line 5 when welding with ceramic discharge tube 1 that locating ring 7 is set.
In order to realize the stiffening effect of helix 6 better, the position of helix 6 and length preferably satisfy following relation: 1.2E≤A≤D, 1.5D≤B＜C, wherein A is the distance of the inner of helix 6 to locating ring 7, B is the length of helix 6, C is the length of electrode outlet line 5 beyond the locating ring, D is the length of scolder 3, E is that (scolder 3 is cylinder in the form of a ring at first for the original shape thickness of scolder 3, behind earthenware 1 and electrode 2 high intermediate temperature sealings, scolder 3 fusings are conical hollow, its length is D, and the thickness of initial ring-type cylinder is the original shape thickness of scolder 3).
The beneficial effects of the utility model can further be verified by following test.
Made following contrast test in ceramic gold-halogen lamp 70W discharge tube, wherein electrode outlet line 5 is made by the niobium silk of diameter 0.6mm, needs through about 1300 ℃ of high temperature in manufacture process.Adopt respectively to have now or not do not test the discharge tube probability of damage such as the following table that in each process, cause because of the contact conductor fracture with the electrode outlet line of molybdenum filament helix and the electrode outlet line of the utility model winding molybdenum filament helix.
| In the discharge tube sealing-in | Be assembled in the lamp | Become in lamp carrying and the burning-point | |
| The conventional electrodes lead-in |
5％ | 25％ | 20％ |
| The utility model has the contact conductor of molybdenum helix | 0 | 5％ | 0 |
Among this embodiment, A=1.4E=0.89D, B=3.7D=0.56C, after the discharge tube sealing-in finished, scolder 3 was wrapping to molybdenum helix 6 from the end of ceramic discharge tube 1 always, and wrapped up two circles of molybdenum helix 6 at least.
In the utility model, reinforcing sleeve 4 is not limited to this a kind of form of winding screw line, and it also can be to be enclosed within sleeve pipe on the electrode outlet line or other adds strong form.The material done on this architecture basics is replaced, or position, dimensional variations, all in protection range of the present utility model.
Claims (10)
1. metal halide lamp that has ceramic discharge tube, comprise the electrode (2) that is positioned at ceramic discharge tube (1) and be positioned at the electrode outlet line (5) that ceramic discharge tube is outer and be connected with described electrode (2), it is characterized in that: be with one section reinforcing sleeve (4) on the described electrode outlet line (5), between described reinforcing sleeve (4) and the electrode outlet line (5) for closely cooperating.
2. the metal halide lamp that has ceramic discharge tube according to claim 1 is characterized in that: described electrode outlet line (5) is made by the niobium silk.
3. the metal halide lamp that has ceramic discharge tube according to claim 1 and 2 is characterized in that: described reinforcing sleeve (4) is for being wrapped in the section spiral line (6) on the electrode outlet line (5).
4. the metal halide lamp that has ceramic discharge tube according to claim 1 and 2 is characterized in that: the end that described electrode outlet line (5) is gone up near electrode also is fixed with a locating ring (7).
5. the metal halide lamp that has ceramic discharge tube according to claim 4 is characterized in that: described locating ring (7) is made by molybdenum filament.
6. the metal halide lamp that has ceramic discharge tube according to claim 4 is characterized in that: described reinforcing sleeve (4) is for being wrapped in the section spiral line (6) on the electrode outlet line.
7. the metal halide lamp that has ceramic discharge tube according to claim 6 is characterized in that: described helix (6) is made by molybdenum filament.
8. the metal halide lamp that has ceramic discharge tube according to claim 6 is characterized in that: described helix (6) is fixed on the electrode outlet line (5) by its two ends and middle solder joint.
9. the metal halide lamp that has ceramic discharge tube according to claim 6 is characterized in that: described electrode outlet line (5) is fixed on the ceramic discharge tube (1) by scolder (3).
10. the metal halide lamp that has ceramic discharge tube according to claim 9 is characterized in that: the length of described helix (6) is less than the length of electrode outlet line (5) beyond the locating ring, and more than or equal to 1.5 times of scolder (3) length; The inner of described helix (6) is to the distance of locating ring (7) length smaller or equal to scolder (3), and more than or equal to 1.2 times of scolder (3) original shape thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200724155U CN201084699Y (en) | 2007-07-12 | 2007-07-12 | A metal halide lamp with ceramic discharging tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200724155U CN201084699Y (en) | 2007-07-12 | 2007-07-12 | A metal halide lamp with ceramic discharging tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201084699Y true CN201084699Y (en) | 2008-07-09 |
Family
ID=39627171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200724155U Expired - Fee Related CN201084699Y (en) | 2007-07-12 | 2007-07-12 | A metal halide lamp with ceramic discharging tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201084699Y (en) |
-
2007
- 2007-07-12 CN CNU2007200724155U patent/CN201084699Y/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: Shanghai Y&L Lighting Co., Ltd. Assignor: Shanghai Yaming Lighting Co., Ltd. Contract fulfillment period: 2009.8.12 to 2014.8.11 Contract record no.: 2009310000207 Denomination of utility model: A metal halide lamp with ceramic discharging tube Granted publication date: 20080709 License type: Exclusive license Record date: 20090908 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.12 TO 2014.8.11; CHANGE OF CONTRACT Name of requester: SHANGHAI YAER LIGHT SOURCE CO., LTD. Effective date: 20090908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20140712 |
|
| EXPY | Termination of patent right or utility model |