CN201682684U - Preheat starter of fluorescent lamp - Google Patents
Preheat starter of fluorescent lamp Download PDFInfo
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- CN201682684U CN201682684U CN2010201049489U CN201020104948U CN201682684U CN 201682684 U CN201682684 U CN 201682684U CN 2010201049489 U CN2010201049489 U CN 2010201049489U CN 201020104948 U CN201020104948 U CN 201020104948U CN 201682684 U CN201682684 U CN 201682684U
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Abstract
The utility model discloses a preheat starter of a fluorescent lamp, which comprises a rectifier, a transistor and a time delay unit, wherein the two input ends of the rectifier are respectively connected with the two ends of the filament capacitance of the fluorescent lamp, the two output ends of the rectifier are connected with the time delay unit, the two output ends of the rectifier are respectively connected with the collector electrode and the emitting electrode of the transistor, and the base electrode of the transistor is connected with the time delay unit. The preheat starter of the utility model can preset the delay time of the time delay unit through controlling the turning-on and turning-off of the transistor by the time delay unit, the transistor is in the turning-on of the transistor in the preset delay time to preheat the fluorescent lamp, and the influence of the ambient temperature on the preheat time is less. Since the transistor is adopted as the preheat start switch, the transistor can not consume power after being turned off, can preheat when being immediately electrified after disconnection, is suitable for the frequent turning-off and turning-on of the fluorescent lamp, has little damage to the rectifier and leads the fluorescent lamp to be prolonged.
Description
Technical field
The utility model relates to the fluorescent lamp technical field, particularly relates to a kind of pipeline start up by preheating device of fluorescent lamp.
Background technology
In the electricity-saving lamp technical field, cathode preheat formula fluorescent lamp has series of advantages such as light efficiency height, life-span length.Facts have proved that the life-span of cathode preheat formula fluorescent lamp depends primarily on life-span of negative electrode.According to the thermionic emission theory, abundant emitting electrons when having only working temperature when negative electrode at 900 ℃～1000 ℃, this is the temperature of cathode fluorescent tube long-term work, requires the higher temperature about 1500 ℃ during the pipeline start up by preheating.The thermal inertia theoretical proof, when heating time during less than 0.4 second, even object obtains enough big energy, significant change can not take place in its temperature yet, so selecting the suitable pipeline start up by preheating time is one of crucial index for the cathode fluorescent tube life-span.On the other hand, when pipeline start up by preheating, pipeline start up by preheating can make the starting resistor of lamp reduce, be reduced to usually negative electrode not pipeline start up by preheating voltage 1/3rd.The reduction of voltage has reduced the electric stress that the associated electrical components and parts are born, and simultaneously, the filament cold resistance rises more than 5 times, circuit Q value is by high step-down, and resonance current will descend about 10 times, switching tube, resonant capacitance, resonant inductance, fuse etc. will be exempted huge surge current.Surge current impacts and is electric ballast failure rate height, short one of the main reasons of life-span, and is when frequent switch, especially true when mains switch loose contact and fluorescent tube loose contact.So pipeline start up by preheating has also guaranteed the life-span of electric ballast simultaneously, kills two birds with one stone.
The preheat starting circuit of the fluorescent lamp of a kind of so-called PTC of industry-wide adoption (positive temperature coefficient) thermistor preheating at present.Yet, great majority adopt the fluorescent lamp pipeline start up by preheating device of PTC thermistor preheating, often all exist circuit parameter coupling difficulty, the pre-heat effect temperature influence shortcomings such as the fragile ballast of not preheating and pipeline start up by preheating device oneself power consumption are big of greatly, intermittently switching on, further influenced the performance and the useful life of fluorescent lamp.
The utility model content
The utility model embodiment provides a kind of pipeline start up by preheating device of fluorescent lamp, and with the purpose that realization prolongs the useful life of fluorescent lamp, technical scheme is as follows:
A kind of pipeline start up by preheating device of fluorescent lamp comprises: rectifier, transistor and delayer;
Two inputs of described rectifier are connected with the filament capacitance two ends of fluorescent lamp respectively;
Two outputs of described rectifier are connected with described delayer;
Two outputs of described rectifier are connected with transistorized collector and emitter respectively;
Described transistorized base stage is connected with described delayer.
Preferably, the pipeline start up by preheating device of described fluorescent lamp also comprises the up-flow electric capacity between two inputs that are connected described rectifier.
Preferably, the pipeline start up by preheating device of described fluorescent lamp can also comprise shell.
Preferably, the pipeline start up by preheating device of described fluorescent lamp can also comprise thick film hybrid and pin.
By using above technical scheme, starter by rectifier, delayer and transistor constitute by the turn-on and turn-off of delayer oxide-semiconductor control transistors, can preestablish the delay time of delayer, carry out preheating to fluorescent lamp in the delay time of setting, warm-up time is influenced by ambient temperature little.Adopt transistor as the pipeline start up by preheating switch, transistor closes the not power consumption of having no progeny, and outage energising at once can preheating, is applicable to the frequent switch of fluorescent lamp, and is less to the damage of ballast, and prolonged the useful life of fluorescent lamp.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do simple the introduction to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The schematic diagram of the pipeline start up by preheating device of the fluorescent lamp that Fig. 1 is provided for the utility model embodiment;
The schematic diagram of the pipeline start up by preheating device of the another kind of fluorescent lamp that Fig. 2 is provided for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the pipeline start up by preheating device of the fluorescent lamp that the utility model embodiment provides comprises: rectifier 1, transistor 2 and delayer 3.
Two inputs of rectifier 1 are connected with the two ends of the filament capacitance 4 of fluorescent lamp respectively, two outputs of rectifier 1 are connected with delayer 3, two outputs of rectifier 1 are connected with the collector and emitter of transistor 2 respectively, and the base stage of transistor 2 is connected with delayer 3.
The operation principle of the pipeline start up by preheating device of the fluorescent lamp that the utility model embodiment provides is as follows: also be connected with ballast and AC power between two electrodes of fluorescent lamp 5, after AC power is connected, rectifier 1 is a direct current with AC rectification, direct current is through transistor 2, the base stage of transistor 2 and emitter conducting, electric current forms the loop, carries out preheating for the electrode and the ballast of fluorescent lamp; Delayer 3 can set in advance delay time, reach between the time-delay that sets in advance when preheating after, delayer 3 disconnects transistor 2, is in cut-off state, offers the current interruptions of ballast, makes and produces voltage on the ballast, starts fluorescent lamp 5 with this.
In other embodiment that the utility model provides, as shown in Figure 2, can also be connected with up-flow electric capacity 6 between two inputs of rectifier 1, the capacitance of up-flow electric capacity 6 be filament capacitance 4 capacitance 3-5 doubly, up-flow electric capacity 6 preheat curent that can raise makes the pre-heat effect of fluorescent lamp faster.
Preferably, the pipeline start up by preheating device of the fluorescent lamp that the utility model embodiment provides can also include shell, thick film hybrid and pin, and the stability of starter and reliability are further strengthened.
The utility model embodiment makes to the utlity model has volume advantage small and exquisite, with low cost owing to use the connection of simple circuit elements device, simultaneously because the no power consumption of starter self during fluorescent lamp operation, and then reaches lifting light efficiency, energy-saving and cost-reducing effect.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. the pipeline start up by preheating device of a fluorescent lamp is characterized in that, comprising: rectifier, transistor and delayer;
Two inputs of described rectifier are connected with the filament capacitance two ends of fluorescent lamp respectively;
Two outputs of described rectifier are connected with described delayer;
Two outputs of described rectifier are connected with transistorized collector and emitter respectively;
Described transistorized base stage is connected with described delayer.
2. the pipeline start up by preheating device of fluorescent lamp according to claim 1 is characterized in that, also comprises the up-flow electric capacity between two inputs that are connected described rectifier.
3. the pipeline start up by preheating device of fluorescent lamp according to claim 2 is characterized in that, can also comprise shell.
4. the pipeline start up by preheating device of fluorescent lamp according to claim 3 is characterized in that, can also comprise thick film hybrid and pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201049489U CN201682684U (en) | 2010-02-01 | 2010-02-01 | Preheat starter of fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201049489U CN201682684U (en) | 2010-02-01 | 2010-02-01 | Preheat starter of fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201682684U true CN201682684U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201049489U Expired - Fee Related CN201682684U (en) | 2010-02-01 | 2010-02-01 | Preheat starter of fluorescent lamp |
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| CN (1) | CN201682684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298225A (en) * | 2013-06-14 | 2013-09-11 | 深圳市电王科技有限公司 | Time-delay starting electronic ballasts and time-sharing starting control method thereof |
-
2010
- 2010-02-01 CN CN2010201049489U patent/CN201682684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298225A (en) * | 2013-06-14 | 2013-09-11 | 深圳市电王科技有限公司 | Time-delay starting electronic ballasts and time-sharing starting control method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20140201 |