CN201541378U - Rectifying device of illumination device - Google Patents
Rectifying device of illumination device Download PDFInfo
- Publication number
- CN201541378U CN201541378U CN2009201980656U CN200920198065U CN201541378U CN 201541378 U CN201541378 U CN 201541378U CN 2009201980656 U CN2009201980656 U CN 2009201980656U CN 200920198065 U CN200920198065 U CN 200920198065U CN 201541378 U CN201541378 U CN 201541378U
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- filament
- starter
- lighting apparatus
- capacitance
- rectifying device
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Abstract
The utility model relates to a rectifying device of an illumination device, which comprises an electronic ballast. The electronic ballast comprises a filament capacitance. The filament capacitance is connected in series with a filament. The rectifying device also comprises an electric fluorescent starter. The electric fluorescent starter is connected in parallel with the filament capacitance. Compared with the prior art, the rectifying device provides preheating for the filament of the illumination device by utilizing the characteristics of high-voltage light-up conduction and delay switch-off of the electric fluorescent starter connected in parallel with the filament capacitance so as to avoid the problem that when the illumination device is started forcibly in the cold state, the materials on the surface of the filament sputter and bombard the fluorescent powder at the tube ends to make both ends of the light tube black and make the light tube aged in advance.
Description
Technical field
The utility model relates to rectifying device, relates in particular to a kind of rectifying device of lighting apparatus.
Background technology
Because gaseous discharge lamp, for example fluorescent lamp, neon light, Metal halogen lamp etc. are the negative resistance electric light sources, and promptly Δ V/ Δ L is a negative value.When lamp current rose, the operating voltage of fluorescent tube descended, but supply power voltage can not descend, and this point voltage that has more can make lamp current further rise after being added to fluorescent tube, and so circulation finally burns out fluorescent tube or fluorescent tube extinguishes.So make the fluorescent tube operate as normal, should be equipped with extra current limitation device, in order to restriction and stable lamp current.This current-limiting apparatus is called ballast.
The ballast that gaseous discharge lamp is commonly used has two kinds at present: inductance type ballast and high-frequency ac electric ballast.Inductance type ballast is operated in power frequency city electricity consumption frequency, there is that volume is big, Heavy Weight, heat radiation difficulty, inefficiency, the luminous shortcoming that stroboscopic is arranged and need to consume metal materials such as a large amount of copper and silicon steel of lamp.
Along with the semiconductor technology develop rapidly, various high anti-pressure power switching devices continue to bring out.At the end of the seventies, external producer takes the lead in having released first generation electric ballast, is the great innovation of illumination development history the next item up.Because it has many advantages such as energy-conservation, caused global very big concern and interest, think to replace the ideal product of Inductive ballast, some famous enterprises have all dropped into suitable human and material resources and have carried out more higher leveled research and development subsequently.Many semiconductor companies have released the series of products of special power switching device and control integrated circuit.For example 1984, Siemens Company developed Active Power Factor Correction electrical equipment ic such as tpa4812, and power factor reaches 0.99.Some companies integrated electronic ballast that releases one after another subsequently, Finland Hull Valley company successfully released tunable optical monolithic integrated circuit electric ballast again in 89 years.Electric ballast at present in the whole world particularly developed country widely use.
But, adopt existing electric ballast in the moment of opening bright fluorescent tube, lamp tube ends can be sent blue-violet light.This be since filament not the fluorescent tube of preheating start by force in cold conditions, cause due to the filament surface mass sputter bombardment pipe end fluorescent material, it is to cause the lamp tube ends blackout, old and feeble in advance main cause.Thereby adopt existing electric ballast can cause shorten the useful life of fluorescent tube.
Summary of the invention
Technical problem to be solved in the utility model is: how to make electric ballast provide preheating for filament, to improve the useful life of fluorescent tube.
For solving the problems of the technologies described above, the utility model provides a kind of rectifying device of lighting apparatus, comprises electric ballast, described electric ballast comprises filament capacitance, described filament capacitance is connected with filament, also comprises starter in addition, and described starter is in parallel with described filament capacitance.
Alternatively, the high 50V to 100V of rated voltage of the described lighting apparatus of glow discharge voltage ratio of described starter.
Alternatively, described starter and the separate installation of described electric ballast.
Alternatively, described starter and described electric ballast are installed in the same shell.
Alternatively, the build-up of luminance number of times life-span of described starter is greater than 30000 times.
Alternatively, the two ends of every filament of described lighting apparatus all connect a diode, and the positive pole of described diode is connected with the positive pole of described filament capacitance.
Compared with prior art, the characteristic that the high pressure build-up of luminance conducting of the starter that the utility model utilization is in parallel with filament capacitance and delaying time disconnects provides preheating for the filament of lighting apparatus, thereby the sputter of filament surface mass is bombarded pipe end fluorescent material and is caused lamp tube ends blackout, old and feeble in advance problem when having avoided cold conditions to start lighting apparatus by force.
In addition, because the basic inactivity consumption of starter, so the utility model realized the no power consumption preheating of lighting apparatus, improved the efficient of illuminator, saved the energy.
In addition, the utility model avoids electron rectifier to be in the blasting state under the aging abnormality that can't start of the filament of lighting apparatus, thereby has avoided the triode excessive heating in the electron rectifier and burn.
Description of drawings
Fig. 1 is equipped with the circuit diagram of the illuminator of rectifying device for embodiment of the utility model.
Embodiment
In embodiment, will be the effect that example illustrates structure, running and the generation thereof of the rectifying device that the utility model is asked for protection with the fluorescent lamp load.
As shown in Figure 1, present embodiment provides lighting apparatus 100.This lighting apparatus comprises electric ballast 101, starter 106 and fluorescent lamp load 107.
Wherein, electric ballast 101 comprises rectification circuit 102 and filament capacitance 103.This rectification circuit 102 has and is used for the input 121 that is connected with AC power, and the output 122 that rectified current output is provided.The two ends of filament capacitance 103 are connected with the positive pole of diode 104,105 respectively, and are connected with the output of rectification circuit 102 by diode 104,105.The circuit structure of above-mentioned electron rectifier 101 is well known to those skilled in the art, does not repeat them here.
There are two filaments 108,109 at the two ends of fluorescent lamp load 107.Wherein the two ends of filament 108 are connected with the both positive and negative polarity of diode 104 respectively, and the two ends of filament 109 are connected with the both positive and negative polarity of diode 105 respectively.
And the two ends of starter 106 are connected with the two ends of filament capacitance 103 respectively, make starter 106 form in parallel with filament capacitance 103.
Inventor of the present utility model finds that in order to realize the voltage matches of starter 106 and fluorescent lamp load 107, the preferred value of the glow discharge voltage of starter 106 is than the high 50V to 100V of rated voltage of fluorescent lamp load 107.
In addition, for convenience starter 106 is transformed and be convenient for changing to existing electric ballast 101, starter 106 can be installed in fluorescent lamp load 107 sides independently of each other with electric ballast 101.
Certainly, also starter 106 and electric ballast 101 can be installed in the same shell, in order to realize the integrated of rectifying device.In this case, starter 106 needs the long life-span, and preferred build-up of luminance number of times is greater than 30000 times.
The reason that the lighting apparatus 100 that present embodiment provides produces beneficial effect is, when fluorescent lamp load 107 starts, electric ballast 101 produces high voltage on filament 108,109, the conducting under high voltage of starter 106 this moment, so on filament 108,109, have electric current to pass through, so produce the preheating to filament 108,109, starter 106 time-delays disconnect then, and fluorescent lamp load 107 is activated.Because filament 108,109 has been produced preheating, thereby the sputter of filament surface mass is bombarded pipe end fluorescent material and is caused the lamp tube ends blackout when having avoided cold conditions to start lighting apparatus by force, old and feeble in advance problem, the switch life of fluorescent lamp load 107 can be increased to 10000 times from average 4000 times.
And if fluorescent lamp load 107 is can't start because of reason such as aging the time, electric ballast 101 is in the blasting state, the very fast heating of triode in the electric ballast 101 (figure does not show), and the conducting under high voltage of starter 106 this moment, thereby avoided the electron rectifier 101 to continue to be in the blasting state, thereby avoided in the electron rectifier 101 triode excessive heating and burn.When existing electric ballast can't start in fluorescent lamp load 107, the triode in the electric ballast will be burnt at about about 1 minute.And adopting the utility model when fluorescent lamp load 107 can't start, the triode in the electron rectifier 101 can not burnt more than 1 hour.
Though the utility model with preferred embodiment openly as above; but it is not to be used for limiting claim; any those skilled in the art are not in breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection range of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (5)
1. the rectifying device of a lighting apparatus comprises electric ballast, and described electric ballast comprises filament capacitance, and described filament capacitance is connected with filament, it is characterized in that: also comprise starter, described starter is in parallel with described filament capacitance.
2. the rectifying device of lighting apparatus as claimed in claim 1 is characterized in that: the high 50V to 100V of rated voltage of the described lighting apparatus of glow discharge voltage ratio of described starter.
3. the rectifying device of lighting apparatus as claimed in claim 1 is characterized in that: described starter and the separate installation of described electric ballast.
4. the rectifying device of lighting apparatus as claimed in claim 1, it is characterized in that: described starter and described electric ballast are installed in the same shell.
5. the rectifying device of lighting apparatus as claimed in claim 1, it is characterized in that: the two ends of every filament of described lighting apparatus all connect a diode, and the positive pole of described diode is connected with the positive pole of described filament capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201980656U CN201541378U (en) | 2009-10-19 | 2009-10-19 | Rectifying device of illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201980656U CN201541378U (en) | 2009-10-19 | 2009-10-19 | Rectifying device of illumination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201541378U true CN201541378U (en) | 2010-08-04 |
Family
ID=42592827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201980656U Expired - Fee Related CN201541378U (en) | 2009-10-19 | 2009-10-19 | Rectifying device of illumination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201541378U (en) |
-
2009
- 2009-10-19 CN CN2009201980656U patent/CN201541378U/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 |
Granted publication date: 20100804 Termination date: 20141019 |
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| EXPY | Termination of patent right or utility model |