CN201893966U - Light-emitting diode lamp tube protecting device - Google Patents
Light-emitting diode lamp tube protecting device Download PDFInfo
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- CN201893966U CN201893966U CN2010205627384U CN201020562738U CN201893966U CN 201893966 U CN201893966 U CN 201893966U CN 2010205627384 U CN2010205627384 U CN 2010205627384U CN 201020562738 U CN201020562738 U CN 201020562738U CN 201893966 U CN201893966 U CN 201893966U
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Abstract
A light-emitting diode lamp tube protecting device comprises a direct-current surge protection unit, a light-emitting diode module and a driving unit, wherein the driving unit is coupled between the direct-current surge protection unit and the light-emitting diode module, the direct-current surge protection unit is used for receiving a direct-current power source, and the light-emitting diode module is driven by the direct-current power source. Therefore, when the direct-current power source has surge voltage or surge current, the direct-current surge protection unit protects the light-emitting diode module and the driving unit at the rear end by the aid of circuit breakage, the problem of burnout of a lamp tube is avoided effectively, and the lamp tube is protected.
Description
Technical field
A kind of light-emitting diode lamp tube protective device refers to a kind of light-emitting diode lamp tube protective device with the anti-system of direct current surging especially.
Background technology
With reference to figure 1, Fig. 1 is the decomposing schematic representation of traditional light-emitting diode lamp tube.Light-emitting diode lamp tube 1 comprises a circuit board 10, an illumination cover 12 and one protective cover 16.Circuit board 10 can be general printed circuit hardboard or board with pliability, lays a power circuit 102 on it.In addition, also be provided with a light-emitting diode (LED) module 104 on the circuit board 10, light-emitting diode 104 modules are electrically connected at power circuit 102 by circuit board 10.In aforementioned, power circuit 102 also can be set at respectively on the different circuit board (not indicating) with light-emitting diode (LED) module 104, and can electrically connect by lead between the two.
Again with reference to figure 1.Circuit board 10 is fixed on the protective cover 16; and illumination cover 12 combines a fluorescent tube external form with protective cover 16; wherein, illumination cover 12 is made by transparent or semitransparent material, so that the light that light-emitting diode (LED) module 104 sends transmits outside the light-emitting diode lamp tube 1 equably.In addition, electrode part 14 is socketed on by illumination cover 12 and protective cover 16 and is assembled together and the two ends of the light-emitting diode lamp tube 1 that forms, and power circuit 102 promptly is to receive extraneous alternating current by electrode part 14.
Cooperate Fig. 1, please refer to Fig. 2.Fig. 2 is the function block schematic diagram of the power circuit of traditional light-emitting diode lamp tube.Power circuit 102 mainly comprises an AC/DC converting unit 1020 and a driver element 1022.Wherein, the power supply unit (POWER SUPPLY) of AC/DC converting unit 1020 for being commonly called as, its purpose is pressed DC for to convert alternating voltage AC to direct voltage DC with 104 1 galvanic currents of driver element 1022 and light-emitting diode (LED) module that the rear end is provided.
Yet; when quality problems take place in power supply unit (POWER SUPPLY); usually have driver element 1022 and light-emitting diode (LED) module 104 that unusual surge voltage or burst current enter the rear end; and then cause light-emitting diode (LED) module 104 and driver element 1022 overload operations; and move long result like this is that driver element 1022 burns; even light-emitting diode (LED) module 104 burns, and causes the problem on safe in utilization.
Summary of the invention
In view of this; the utility model provides a kind of light-emitting diode lamp tube protective device; it takes place under the unusual surging output state at power supply unit, by opening circuit of direct current surging protected location (for example fuse), with the light-emitting diode (LED) module and the driver element of protection rear end.
According to an embodiment, light-emitting diode lamp tube protective device of the present utility model comprises a direct current surging protected location, a light-emitting diode (LED) module and a driver element.Wherein, driver element is coupled between direct current surging protected location and the light-emitting diode (LED) module, receives a direct current via direct current surging protected location, and by the dc powered light-emitting diode (LED) module.So, when direct current generation surge voltage or burst current, direct current surging protected location is by opening circuit with protection light-emitting diode (LED) module and driver element.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, this direct current surging protected location is a fuse.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, this light-emitting diode (LED) module is a series connection light-emitting diode (LED) module or a connection in series-parallel light-emitting diode (LED) module.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, this driver element is certain voltage circuit or certain electric current and the integrated circuit of deciding voltage.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, also comprise an AC/DC converting unit, this AC/DC converting unit is coupled to this direct current surging protected location, receives an alternating current and this direct current of output.
According to another embodiment, light-emitting diode lamp tube protective device of the present utility model comprises a direct current surging protected location, a bridge rectifier unit, a light-emitting diode (LED) module and a driver element.The bridge rectifier unit is coupled to direct current surging protected location, receives one first direct current via direct current surging protected location, and exports one second direct current.Driver element is coupled between bridge rectifier unit and the light-emitting diode (LED) module, receives second direct current, and by the second dc powered light-emitting diode (LED) module.So, when the first direct current generation surge voltage or burst current, direct current surging protected location is by opening circuit with protection bridge rectifier unit, light-emitting diode (LED) module and driver element.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, this direct current surging protected location is a fuse.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, this light-emitting diode (LED) module is a series connection light-emitting diode (LED) module or a connection in series-parallel light-emitting diode (LED) module.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, this driver element is certain voltage circuit or certain electric current and the integrated circuit of deciding voltage.
In the above-mentioned light-emitting diode lamp tube protective device, preferably, also comprise an AC/DC converting unit, this AC/DC converting unit is coupled to this direct current surging protected location, receives an alternating current and this first direct current of output.
In sum; the light-emitting diode lamp tube protective device of each embodiment of the utility model, it takes place under the unusual surging output state, by opening circuit of direct current surging protected location at power supply unit; the problem that can effectively avoid fluorescent tube to burn plays the effect of protection fluorescent tube.Simultaneously, in the situation of using many fluorescent tubes, direct current surging protected location also can effectively be isolated the unusual fluorescent tube of generation, is unlikely to influence the operation of other normal fluorescent tube.
Description of drawings
Fig. 1 is the decomposing schematic representation of traditional light-emitting diode lamp tube;
Fig. 2 is the function block schematic diagram of the power circuit of traditional light-emitting diode lamp tube;
Fig. 3 is the circuit box schematic diagram of the utility model first embodiment; And
Fig. 4 is the circuit box schematic diagram of the utility model second embodiment.
Wherein, description of reference numerals is as follows:
Prior art:
Light-emitting diode lamp tube 1
Electrode part 14
AC/DC converting unit 1020
Light-emitting diode (LED) module 104
Alternating voltage AC
Direct voltage DC
The utility model:
Light-emitting diode lamp tube protective device 2,2 '
AC/DC converting unit 20
Direct current surging protected location 21
Light-emitting diode (LED) module 24
Direct current DC1, DC2
Alternating current AC
Embodiment
Please refer to Fig. 3, Fig. 3 is the circuit box schematic diagram of the utility model first embodiment.According to first embodiment, light-emitting diode lamp tube protective device 2 comprises a direct current surging protected location 21, a light-emitting diode (LED) module 24 and a driver element 22.Wherein, driver element 22 is coupled between direct current surging protected location 21 and the light-emitting diode (LED) module 24.Driver element 22 receives a direct current DC1 via direct current surging protected location 21, and by direct current DC1 driven for emitting lights diode (led) module 24.
Again with reference to figure 3.This first embodiment can select for use a kind of protected location of fusing property slowly as direct current surging protected location 21, for example fuse.So, when surge voltage or burst current took place direct current DC1, direct current surging protected location 21 promptly can to guarantee the safety of rear end light-emitting diode (LED) module 24 and driver element 22, reach the effect of protection because of over proof electric current forms off state.In aforementioned, direct current DC1 is together often from an AC/DC converting unit 20.This AC/DC converting unit 20 is coupled between direct current surging protected location 21 and the AC power (not indicating), and it receives an alternating current AC and alternating current AC conversion is output as this direct current DC1.
Again with reference to figure 3.Light-emitting diode (LED) module 24 in the light-emitting diode lamp tube protective device 2 is made up of many light-emitting diodes (LED), and these many light-emitting diodes can connect by series system, to form a series connection light-emitting diode (LED) module.In addition, these many light-emitting diodes also can connect by series-parallel system, to form a connection in series-parallel light-emitting diode (LED) module.
In first embodiment, be connected the driver element 22 between a direct current surging protected location 21 and the light-emitting diode (LED) module 24, can decide voltage (CV) circuit or a kind ofly decide electric current (CC) and decide the integrated circuit of voltage (CV) for a kind of.Wherein, decide voltage (CC) circuit with this direct current DC1 for light-emitting diode (LED) module 24 provides the direct current of a burning voltage, allow the light-emitting diode (LED) module 24 can be luminous.In addition, decide electric current (CC) and the integrated circuit of decide voltage (CV) with this direct current DC1, provide the direct current of a burning voltage and stabling current to light-emitting diode (LED) module 24, allow the light-emitting diode (LED) module 24 not only can be luminous, the while can allow light stability.
So, among first embodiment, light-emitting diode lamp tube protective device 2 takes place under the unusual surging output state at power supply unit, and by opening circuit of direct current surging protected location 21, the problem that can effectively avoid fluorescent tube to burn reaches the purpose that fluorescent tube is protected.Simultaneously, in the situation of using many fluorescent tubes, direct current surging protected location 21 also can effectively be isolated the unusual fluorescent tube of generation, is unlikely to influence the operation of other normal fluorescent tube.
Cooperate Fig. 3, please refer to Fig. 4.Fig. 4 is the circuit box schematic diagram of the utility model second embodiment.The identical person with first embodiment of the assembly of the utility model second embodiment indicates with same-sign.The circuit operation principle of second embodiment and first embodiment is identical with the effect of reaching, its main difference be in: the light-emitting diode lamp tube protective device 2 ' of second embodiment also comprises a bridge rectifier unit 23.
Again with reference to figure 4.Same; the light-emitting diode lamp tube protective device 2 ' of the utility model second embodiment its when surge voltage or burst current take place in direct current DC1; direct current surging protected location 21 promptly can form off state because of over proof electric current; to guarantee the safety of rear end light-emitting diode (LED) module 24, bridge rectifier unit 23 and driver element 22, reach the effect of protection.
In addition, among second embodiment, the output of bridge rectifier unit 23 is connected to the input of driver element 22, and simultaneously, the input of bridge rectifier unit 23 is connected in the output of AC/DC converting unit 20 via direct current surging protected location 21.So, if the input of the output of AC/DC converting unit 20 and bridge rectifier unit 23 is misplaced (example in assembling process, positive and negative voltage wrong), can not be misplaced because of the polarity of direct current DC1 yet, and the problem that causes driver element 22 to move allows fluorescent tube more convenient, yield in assembling more promote.
In sum; light-emitting diode lamp tube protective device among each embodiment of the present utility model takes place under the unusual surging output state at power supply unit; by opening circuit of direct current surging protected location (for example fuse); with protection light-emitting diode (LED) module and driver element that the rear end was connected; the problem of effectively avoiding fluorescent tube to burn reaches the purpose of protecting fluorescent tube.Simultaneously, in the use of many fluorescent tubes, direct current surging protected location also can effectively be isolated the unusual fluorescent tube of generation, is unlikely to influence the operation of other normal fluorescent tube.
But the above only is the detailed description of one of best specific embodiment of the present utility model and graphic, any those skilled in the art in field of the present utility model, can think easily and variation or modify all be encompassed in the application's the scope of patent protection.
Claims (10)
1. a light-emitting diode lamp tube protective device is characterized in that, comprising:
One direct current surging protected location is exported a direct current, and when surge voltage or burst current generation, cuts off this galvanic output;
One light-emitting diode (LED) module; And
One driver element is coupled between this direct current surging protected location and this light-emitting diode (LED) module, and this driver element receives this direct current via this direct current surging protected location, and by this light-emitting diode (LED) module of this dc powered.
2. light-emitting diode lamp tube protective device as claimed in claim 1 is characterized in that, this direct current surging protected location is a fuse.
3. light-emitting diode lamp tube protective device as claimed in claim 1 is characterized in that, this light-emitting diode (LED) module is a series connection light-emitting diode (LED) module or a connection in series-parallel light-emitting diode (LED) module.
4. light-emitting diode lamp tube protective device as claimed in claim 1 is characterized in that, this driver element is certain voltage circuit or certain electric current and the integrated circuit of deciding voltage.
5. light-emitting diode lamp tube protective device as claimed in claim 1 is characterized in that, also comprises an AC/DC converting unit, and this AC/DC converting unit is coupled to this direct current surging protected location, receives an alternating current and this direct current of output.
6. a light-emitting diode lamp tube protective device is characterized in that, comprising:
One direct current surging protected location is exported one first direct current, and when surge voltage or burst current generation, cuts off this first galvanic output;
One bridge rectifier unit is coupled to this direct current surging protected location, and this bridge rectifier unit receives this first direct current via this direct current surging protected location, and exports one second direct current;
One light-emitting diode (LED) module; And
One driver element is coupled between this bridge rectifier unit and this light-emitting diode (LED) module, and this driver element receives this second direct current, and by this this light-emitting diode (LED) module of second dc powered.
7. light-emitting diode lamp tube protective device as claimed in claim 6 is characterized in that, this direct current surging protected location is a fuse.
8. light-emitting diode lamp tube protective device as claimed in claim 6 is characterized in that, this light-emitting diode (LED) module is a series connection light-emitting diode (LED) module or a connection in series-parallel light-emitting diode (LED) module.
9. light-emitting diode lamp tube protective device as claimed in claim 6, tool are characterised in that this driver element is certain voltage circuit or certain electric current and the integrated circuit of deciding voltage.
10. light-emitting diode lamp tube protective device as claimed in claim 6 is characterized in that, also comprises an AC/DC converting unit, and this AC/DC converting unit is coupled to this direct current surging protected location, receives an alternating current and this first direct current of output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205627384U CN201893966U (en) | 2010-10-08 | 2010-10-08 | Light-emitting diode lamp tube protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205627384U CN201893966U (en) | 2010-10-08 | 2010-10-08 | Light-emitting diode lamp tube protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893966U true CN201893966U (en) | 2011-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205627384U Expired - Fee Related CN201893966U (en) | 2010-10-08 | 2010-10-08 | Light-emitting diode lamp tube protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201893966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602401A (en) * | 2013-12-27 | 2015-05-06 | 谢维哲 | LED lamp tube device similar to fluorescent lamp tube |
-
2010
- 2010-10-08 CN CN2010205627384U patent/CN201893966U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602401A (en) * | 2013-12-27 | 2015-05-06 | 谢维哲 | LED lamp tube device similar to fluorescent lamp 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20121008 |