CN2573853Y - Long service life LED signal lamp - Google Patents
Long service life LED signal lamp Download PDFInfo
- Publication number
- CN2573853Y CN2573853Y CN02266065U CN02266065U CN2573853Y CN 2573853 Y CN2573853 Y CN 2573853Y CN 02266065 U CN02266065 U CN 02266065U CN 02266065 U CN02266065 U CN 02266065U CN 2573853 Y CN2573853 Y CN 2573853Y
- Authority
- CN
- China
- Prior art keywords
- light
- emitting diode
- signal lamp
- stabilizing didoe
- led
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to an LED signal lamp with long service life. The utility model is characterized in that one Zener diode is connected to every LED in parallel; the positive terminal of the Zener diode is connected to the negative terminal of one LED, and the negative terminal is connected to the positive terminal of the LED. The utility model has the advantages that the service life of the LED signal lamp is increased by 4 times to 5 times, the utility model can be used in places such as railways, intersections in cities, inland navigation, aviation, etc., which need signal lamps and large screen displays, and the utility model can be implemented conveniently.
Description
Technical field
The utility model relates to a kind of lighting device of using as signal, particularly a kind of long-life LED signal lamp.
Background technology
Along with science and technology development, the LED technical indicator is greatly improved, production cost reduces significantly simultaneously, and its range of application constantly enlarges, and has a wide range of applications at traffic signals, aviation, navigation, auto industry, large scale display and lighting field.Can reach several ten thousand hours the useful life of LED in theory, but some unit also can break down and lose efficacy in actual use, because LED is tandem working often in the circuit in these fields, as be used for traffic lights, usually with tens volts of supreme hectovolt DC-voltage supplies, by tens to tens LED tandem workings as a luminescence unit, when one of them LED inefficacy is not luminous, then this luminescence unit all extinguishes, and causes whole signal lamp to lose efficacy thus.
Summary of the invention
As everyone knows, in many instances, light-emitting diode is that serial connection is used, and any one led failure is wherein extinguished, and occurs opening circuit, and then the light-emitting diode of whole string all quits work.Think that in the logical thinking of people's routine this is natural, have no room for improvement, so be external domestic all with the record of light-emitting diode and the use of Wen pressure Er Ji Guan And connection up to now, the present invention has broken through this technology prejudice.
A kind of long-life LED signal lamp, comprise housing, the luminescence unit that control circuit Duo Ge And connects, each luminescence unit is formed by a dropping resistor R and a plurality of light-emitting diode L serial connection, it is characterized in that: each light-emitting diode L And meets a voltage stabilizing didoe W, and the anode of this voltage stabilizing didoe W is connected with the negative terminal of light-emitting diode L, and its negative terminal is connected with the anode of light-emitting diode L; Its reverse-conducting voltage of above-mentioned voltage stabilizing didoe W must be higher than the operating voltage of light-emitting diode (L); Each can be integrated on the same semiconductor device in advance to light-emitting diode-voltage stabilizing didoe, produces the LED device that has voltage stabilizing didoe, and this new unit has purposes widely.Its operation principle of light-emitting diode that has voltage stabilizing didoe is: its forward conduction voltage of silicon materials voltage stabilizing didoe is 0.7 volt, this voltage stabilizing didoe conducting when forward voltage is added on the voltage stabilizing didoe; When voltage stabilizing didoe is operated under the reverse voltage condition, when reverse voltage during greater than voltage of voltage regulation, this voltage stabilizing didoe also can conducting; Reverse voltage is during less than voltage of voltage regulation, then not conducting of voltage stabilizing didoe.This operating characteristic based on voltage stabilizing didoe, voltage stabilizing didoe Fan is connected on the light-emitting diode Xiang And, when led failure is extinguished, because the existence of voltage stabilizing didoe, the conducting immediately of the two ends of this light-emitting diode, guarantee that thus all the other light-emitting diodes continuation are luminous in the luminescence unit, thereby make prolong 4～5 times the useful life of traffic lights, needn't change whole signal lamp immediately because of the indivedual led failure in the signal lamp.
With prior art relatively, the utlity model has following outstanding advantage: 1) can make LED signal lamp improve 4～5 times useful life, reduce signal lamp and change number of times, help safeguarding traffic safety, reduce the generation of traffic accident; 2) for LED signal lamp, connect a voltage stabilizing didoe at each light-emitting diode Shang And, each voltage stabilizing didoe price is 0.1 yuan, it is few that each signal lamp increases expense, and the cost of changing a LED signal lamp is thousands of units, occasion LED signal lamp demand such as railway, urban traffic intersection has a large capacity and a wide range, and uses present technique and can save considerable expense every year, has important social benefit and economic benefit; 3) can organize light-emitting diode-voltage stabilizing didoe semiconductor new unit of producing integrated form, give light-emitting diode new function, help driving the light-emitting diode sales volume and further rise, use more extensive.
Description of drawings
Fig. 1 is the circuit diagram of existing LED signal lamp.
Fig. 2 is a LED signal lamp circuit diagram of the present utility model.
Fig. 3 is the structure chart of integrated form light-emitting diode-voltage stabilizing didoe new unit.L is a LED among the figure, and W is a voltage stabilizing didoe.
Embodiment
5 luminescence units that a kind of railway LED signal lamp Han You And connects, each luminescence unit is formed by 1 dropping resistor R and 11 light-emitting diode L serial connections, each light-emitting diode Shang And meets a voltage stabilizing didoe W, when any one led failure was wherein extinguished, remaining light-emitting diode is work as usual; Even there are 10 led failure to extinguish, remaining light-emitting diode is work as usual also, needn't change whole light fixture, because according to pertinent regulations, in the whole LED signal lamp, the led failure rate reaches at 20% o'clock, just must change signal lamp.Light-emitting diode L in the present embodiment selects the emitting led of HP production for use, and its forward voltage drop is 3.2 volts, and selecting its reverse pressure drop of voltage stabilizing didoe W for use is 3.5 volts.If continue to use existing LED signal lamp, when one of them led failure was extinguished, then 11 light-emitting diodes of whole string all quit work, and extinctivity is 20%, must change whole signal lamp.
Claims (3)
1. long-life LED signal lamp, comprise housing, the luminescence unit that control circuit Duo Ge And connects, each luminescence unit is formed by a dropping resistor (R) and a plurality of light-emitting diode (L) serial connection, it is characterized in that: (L) And connects a voltage stabilizing didoe (W) to each light-emitting diode, and this voltage stabilizing didoe anode is connected with the light-emitting diode negative terminal, and its negative terminal is connected with the anode of light-emitting diode.
2. LED signal lamp according to claim 1 is characterized in that: its reverse-conducting voltage of voltage stabilizing didoe (W) must be higher than the operating voltage of light-emitting diode (L).
3. LED signal lamp according to claim 1 is characterized in that: each can be integrated on the same semiconductor device light-emitting diode-voltage stabilizing didoe, forms integrated form light-emitting diode-voltage stabilizing didoe semiconductor new unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02266065U CN2573853Y (en) | 2002-08-04 | 2002-08-04 | Long service life LED signal lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02266065U CN2573853Y (en) | 2002-08-04 | 2002-08-04 | Long service life LED signal lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573853Y true CN2573853Y (en) | 2003-09-17 |
Family
ID=33731973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02266065U Expired - Fee Related CN2573853Y (en) | 2002-08-04 | 2002-08-04 | Long service life LED signal lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573853Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076387A (en) * | 2014-11-20 | 2017-08-18 | 皇家飞利浦有限公司 | LED device with individually addressable LED module |
-
2002
- 2002-08-04 CN CN02266065U patent/CN2573853Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076387A (en) * | 2014-11-20 | 2017-08-18 | 皇家飞利浦有限公司 | LED device with individually addressable LED module |
| CN107076387B (en) * | 2014-11-20 | 2021-05-18 | 亮锐控股有限公司 | LED device with individually addressable LED modules |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2573853Y (en) | Long service life LED signal lamp | |
| CN1399093A (en) | Long-life LED signal lamp | |
| CN1816234A (en) | Stable long-acting lighting indication device for light-emitting diode | |
| CN2877183Y (en) | Illuminating apparatus | |
| CN101086325A (en) | LED lamp bulb | |
| CN2562371Y (en) | Long-life LED integrated elements | |
| CN201462537U (en) | Novel LED miniature bulb string | |
| CN1399347A (en) | Long-life integrated LED device | |
| CN1722927A (en) | An LED illuminating circuit | |
| CN208094836U (en) | A kind of LED rear combination lamps illuminator | |
| CN200950682Y (en) | Novel highly effective low cost constant-current driver for LED lighting lamp | |
| CN200975619Y (en) | Semiconductor light-emitting diode table lamp table lamp | |
| CN2570601Y (en) | High-parallel light rays diode lighting arrangement | |
| CN220023130U (en) | Alternating current direct-drive LED lamp string | |
| CN2765052Y (en) | LED compartment lamp | |
| CN100554763C (en) | A kind of decorative chain | |
| CN2328870Y (en) | Fire-fighting emergency lamp capable of display situation at site | |
| CN2668992Y (en) | Pure-green-light solid luminous lamp | |
| CN201273485Y (en) | AC power supply water-proof parallel type LED lamp | |
| CN2628854Y (en) | Luminous diode light source lamp with volatage stablizing protection | |
| TWI748893B (en) | Lamp holder structure of street lamp | |
| CN212752695U (en) | Dual-voltage redundant dimming power supply system | |
| CN211630438U (en) | Emergency sign lamp | |
| CN201081156Y (en) | Cold light source wall-hung induction lamp house with information display function | |
| CN2819706Y (en) | Safety power saving xenon healight of vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |