CN2553512Y - Fluorescent lamp capable of preventing tube two ends blackening - Google Patents
Fluorescent lamp capable of preventing tube two ends blackening Download PDFInfo
- Publication number
- CN2553512Y CN2553512Y CN 02266043 CN02266043U CN2553512Y CN 2553512 Y CN2553512 Y CN 2553512Y CN 02266043 CN02266043 CN 02266043 CN 02266043 U CN02266043 U CN 02266043U CN 2553512 Y CN2553512 Y CN 2553512Y
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- CN
- China
- Prior art keywords
- filament
- lamp tube
- lamp
- fluorescent
- cathode
- 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 - Lifetime
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Abstract
The utility model relates to a fluorescent lamp capable of preventing tube two ends blackening, comprising a lamp tube and the anode filament and cathode filament respectively positioned on two ends, which is characterized in that: the inside of the lamp tube is provided with tow metal nets respectively making the anode filament and cathode filament wrapped inside, and an opening is kept on the facing direction for the anode filament and cathode filament. The metal nets are better to adopt the materials which are of high-pressure, high-temperature and electronic beam resistance, like the metal material of molybdenum and tungsten. The metal nets are better to be connected with the aero line or grounding line of the power-supply, which instantly release the electric spark caused by filament. Compared with the prior art, the utility model adopts to using metal nets to wrap the filament, which can effectively prevent the electron send out on the filament surface directly attacking the lamp tube, thereby effectively prevents the blackening phenomenon for two ends of the lamp tube.
Description
Technical field
The utility model relates to a kind of fluorescent lamp, particularly a kind of fluorescent lamp that prevents the lamp tube ends blackout.
Background technology
Fluorescent lamp generally comprises fluorescent tube and is separately positioned on the anodic filament and the cathode filament at its two ends, in fluorescent tube, be filled with mercury vapour or other gaseous matters, during energising, the anodic filament of lamp tube ends and cathode filament produce discharge, make gas exciting radiation in the pipe, thereby luminous, fluorescent lamp, uviol lamp etc. all belongs to fluorescent lamp.Yet fluorescent lamp has its intrinsic defective because of its above-mentioned operation principle, be to turn black easily in its lamp tube ends position, its reason is because starting resistor is higher, easily makes the electronics emission on filament surface and produces spark and be scattering into tube inner wall, thereby cause the fluorescent tube blackout.In the prior art, generally all be on circuit, to make an issue of, as notification number is that the Chinese utility model patent " prevent fluorescent tube blackout ballast " of CN2202388Y and Chinese utility model patent " can prevent the electric ballast of tube cathode position blackout " that notification number is CN2268355Y are not always the case, implement comparatively complicated, and electronic component is also fragile, so also rarely has similar products like on the market.
Summary of the invention
Technical problem to be solved in the utility model is the fluorescent lamp that new structure is provided at above-mentioned prior art present situation, makes it need not to change existing circuit and also can prevent the lamp tube ends blackout.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the fluorescent lamp that can prevent lamp tube ends blackout comprises fluorescent tube and is separately positioned on the anodic filament and the cathode filament at its two ends, it is characterized in that, in fluorescent tube, also be provided with two wire nettings, respectively anodic filament and cathode filament are surrounded in it, and on the anodic filament direction relative, leave opening with cathode filament.
The material that high voltage withstanding to adopt, high temperature resistant, the anti-electron beam of described wire netting impacts is good, as metal materials such as molybdenum, tungsten.
Described wire netting with the zero line of power supply or earth connection be connected to good, the electric spark that causes with timely release filament emitting electrons.
Compared with prior art, the utility model owing to adopt surrounds wire netting in it with filament, can stop effectively that filament surface institute electrons emitted directly bombards to fluorescent tube, thereby has prevented the blackout phenomenon of lamp tube ends effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 3, the fluorescent lamp that prevents lamp tube ends blackout comprises fluorescent tube 1 and is separately positioned on the cathode and anode filament 3 at its two ends, periphery at filament 3 respectively is provided with a cylindrical metal net 2, respectively cathode and anode filament 3 is surrounded in it, and it is opening-like on the relative direction of two filaments 3, referring to Fig. 2, the material that high voltage withstanding to adopt, high temperature resistant, the anti-electron beam of this wire netting 2 impacts is good, as metal materials such as molybdenum, tungsten, for timely discharge, this wire netting 2 should link to each other with the zero line or the earth connection of power supply simultaneously.
Claims (5)
1, a kind of fluorescent lamp that prevents the lamp tube ends blackout, comprise fluorescent tube and be separately positioned on the anodic filament and the cathode filament at its two ends, it is characterized in that, in fluorescent tube, also be provided with two wire nettings, respectively anodic filament and cathode filament are surrounded in it, and on the anodic filament direction relative, leave opening with cathode filament.
2, the fluorescent lamp that prevents the lamp tube ends blackout according to claim 1 is characterized in that the material that described wire netting adopts high voltage withstanding, high temperature resistant, anti-electron beam to impact.
3, the fluorescent lamp that prevents the lamp tube ends blackout according to claim 2 is characterized in that described wire netting adopts molybdenum or tungsten.
4, according to claim 1, the 2 or 3 described fluorescent lamps that prevent the lamp tube ends blackout, it is characterized in that described wire netting links to each other with the zero line or the earth connection of power supply.
5, according to claim 1, the 2 or 3 described fluorescent lamps that prevent the lamp tube ends blackout, it is characterized in that described wire netting is cylindric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266043 CN2553512Y (en) | 2002-08-02 | 2002-08-02 | Fluorescent lamp capable of preventing tube two ends blackening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266043 CN2553512Y (en) | 2002-08-02 | 2002-08-02 | Fluorescent lamp capable of preventing tube two ends blackening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2553512Y true CN2553512Y (en) | 2003-05-28 |
Family
ID=33731955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02266043 Expired - Lifetime CN2553512Y (en) | 2002-08-02 | 2002-08-02 | Fluorescent lamp capable of preventing tube two ends blackening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2553512Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983058A (en) * | 2012-11-19 | 2013-03-20 | 宫锡和 | Cooling ring for fluorescent tube |
-
2002
- 2002-08-02 CN CN 02266043 patent/CN2553512Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983058A (en) * | 2012-11-19 | 2013-03-20 | 宫锡和 | Cooling ring for fluorescent tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120802 Granted publication date: 20030528 |