CN102798050A - LED (Light-Emitting Diode) high-voltage constant-current waterproof advertising lamp box backlight source - Google Patents
LED (Light-Emitting Diode) high-voltage constant-current waterproof advertising lamp box backlight source Download PDFInfo
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- CN102798050A CN102798050A CN2012102925328A CN201210292532A CN102798050A CN 102798050 A CN102798050 A CN 102798050A CN 2012102925328 A CN2012102925328 A CN 2012102925328A CN 201210292532 A CN201210292532 A CN 201210292532A CN 102798050 A CN102798050 A CN 102798050A
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Abstract
The invention relates to an advertising identification lamp box LED (Light-Emitting Diode) backlight technology, and provides an LED (Light-Emitting Diode) high-voltage constant-current waterproof advertising lamp box backlight source, which comprises an LED circuit board, wherein high voltage 48V is used for supplying power to the circuit board; constant-current driving is adopted; a '[-shaped' groove structure shell is adopted; an LED circuit board is fixed in a '[-shaped' groove of the shell; connecting line grooves are fixed at the two ends of the shell; power wires are led out of the connecting line grooves; and the anode and cathode of a power wire circuit board are connected with each other. 48V power supply is adopted for the first time in the industry in which an LED is taken as a lamp box backlight source, so that high voltage and high current are realized; and simultaneously, a constant-current driving technology is adopted, so that the backlight source has the advantages of high constant-current accuracy, low LED light decay, long service life, small quantity of chip peripheral elements, low cost and high decay resistance, and is particularly suitable for long-distance power supply.
Description
Technical field
The present invention relates to a kind of advertisement and identifier lamp box LED-backlit technology, a kind of LED high voltage and constant current waterproof advertising lamp box backlight is provided.
Background technology
At present, what the used lamp box backlight of advertisement and identifier industry mainly adopted is the technical scheme of not constant current of low pressure, and there is following problem in it:
The LED driving voltage is low, and because of there being problem of pressure drop, the fed distance of LED power supply is shorter; So the LED power supply must be installed near the LED module; Just make the LED power supply just often be operated under the open-air situation, this just requires the LED power supply must possess the sun-proof ability of excellent waterproof, and LED power supply cost raises.
What circuit adopted is the technology of not constant current, and the decay of voltage causes the LED electric current different, and front and back brightness is difficult to consistent.
Voltage is low, and electric current is high, and decay is just big, so just need connect more power line, trouble is installed.
In a word, there is following shortcoming in this scheme: power supply distance is short, and electric current is high; Voltage antidamping ability, connection line is many, and installation cost is high; Front and back brightness is difficult consistent, and reliability is lower, and spoilage is higher; Especially maintenance is very difficult, and the invention of LED high voltage and constant current advertising lamp box backlight has well solved above problem.
Summary of the invention
The object of the present invention is to provide a kind of LED high voltage and constant current waterproof advertising lamp box backlight.
The present invention adopts following technical scheme to achieve these goals:
A kind of LED high voltage and constant current waterproof advertising lamp box backlight; It is characterized in that: comprise the high voltage and constant current wiring board; " [" type groove structure shell, shell " be fixed with the led circuit plate in [" type groove, the shell two ends are fixed with Wire connection slot; Lead to power line in the said Wire connection slot, the both positive and negative polarity of said power line circuit board connects.
In the such scheme, said led circuit plate has adopted high pressure 48V power supply when designing, and has used two LC1912 constant current chips as LED driving to be provided, and forms unique dual fail-safe loop design.
In the such scheme, said Wire connection slot is provided with the small column of the convexity that is used for positioning with wiring board.
In the such scheme, also comprise water-proof silica-gel, said water-proof silica-gel is attached to above the wiring board.
In the such scheme, be provided for the installing hole that is fixed on the lamp box rectangular on the described Wire connection slot.
In the such scheme, also comprise screw, the both positive and negative polarity of said power line wiring board connects through screw.
The present invention has following beneficial effect:
One, the present invention adopts high pressure 48V power supply, and the present invention adopts high pressure 48V power supply, and electric current reduces by 75% with respect to the 12V power voltage supply, and voltage decay on the line is corresponding to reduce by 75% thereby make;
Two, the present invention has adopted constant-current drive technology, and constant current accuracy makes lamp box surface brightness uniformity up to 2%,
Three, the present invention adopts constant-current drive technology, and the circuital current fluctuation is little, so the LED longer service life, light decay is littler;
Four, the present invention adopts imported with original packaging LC1912 constant current chip periphery components and parts few, and cost is low;
Five, antidamping ability of the present invention is strong, especially is fit to remote power-feeding, and voltage attenuation reaches as high as 9V, and brightness is constant;
Six, the present invention has adopted two LC1912 constant current chips to form unique dual fail-safe loop design, and work independently of one another is independent of each other, and reliability is high, greatly reduces the product maintenance rate;
Seven, the present invention adopts between whole screen shipment mode, set of hanging scrolls distance fixing, easy for installation, quick;
Eight, circuit board top of the present invention is attached with water-proof silica-gel, also can not cause short circuit even make rainwater invade in the casing, thereby strengthen the whole service life and the adaptability of equipment.
Nine, the present invention has energy-saving and environmental protection, brightness is high, replaces traditional fluorescent lamp.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is a single integral piece structure chart of the present invention;
2-Wire connection slot, 2-power line, 3-screw, 4-plastic casing, 5-circuit board, 6-constant current chip among the figure.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation:
This LED high voltage and constant current waterproof advertising lamp box backlight is as shown in Figure 1, comprises the LED wiring board; Said led circuit plate adopts high pressure 48V power supply; And form unique dual fail-safe loops design with two imported with original packaging constant current chip LC1912, be used for fixing circuit board " [" type groove structure shell, there is Wire connection slot at said shell two ends with screw fixings; There is the small column of a convexity Wire connection slot inside, is used for positioning with wiring board.Also be provided with installing hole above the Wire connection slot, be used for being fixed on above the lamp box rectangular.Also comprise power line, power line drawing in the Wire connection slot, the power line that is built in the Wire connection slot partly links to each other with the both positive and negative polarity of wiring board through screw.
The present invention has following characteristics:
One, the present invention in actual use can be according to the requirement of client to brightness, and line length can be customized.
Two, because invention adopts the LED of low energy as light source, make its than the about power consumption of traditional fluorescent lamp tube coupling up to 70%.
Three, unique dual fail-safe loop is designed, and has improved reliability of products greatly.
Four, antidamping ability is strong, especially is fit to remote power-feeding, and voltage attenuation reaches as high as 9V, but brightness is constant.
Five, the quality guarantee time limit: 4 years or 20000 hours.
Six, adopt high pressure, output voltage has only 48V, and human body is belonged to safe voltage.
Seven, the present invention adopts silica gel attached to lamp bar upper and lower side, makes it possess the excellent waterproof ability, has increased the adaptive capacity of product to environment, classification of waterproof: IP67.
Claims (7)
1. LED high voltage and constant current waterproof advertising lamp box backlight; It is characterized in that: the wiring board that comprises high voltage and constant current; " [" type groove structure shell, shell " be fixed with the led circuit plate in [" type groove, the shell two ends are fixed with Wire connection slot; Lead to power line in the said Wire connection slot, the both positive and negative polarity of said power line circuit board connects.
2. a kind of LED high voltage and constant current advertising lamp box backlight according to claim 1, it is characterized in that: said circuit board has adopted the 48V high voltage supply.
3. a kind of LED high voltage and constant current advertising lamp box backlight according to claim 1 is characterized in that: it is that LED provides driving that said wiring board has adopted two imported with original packaging LC1912 constant current chips.
4. according to a kind of LED high voltage and constant current waterproof advertising lamp box backlight under the claim 1, it is characterized in that: said Wire connection slot is provided with the small column of the convexity that is used for positioning with wiring board.
5. according to a kind of LED high voltage and constant current waterproof advertising lamp box backlight under the claim 1, it is characterized in that: also comprise water-proof silica-gel, said water-proof silica-gel is attached to above the wiring board.
6. according to a kind of LED high voltage and constant current waterproof advertising lamp box backlight under the claim 1, it is characterized in that: be provided for the installing hole that is fixed on the lamp box rectangular on the described Wire connection slot.
7. according to a kind of LED high voltage and constant current waterproof advertising lamp box backlight under the claim 1, it is characterized in that: also comprise screw, the both positive and negative polarity of said power line wiring board connects through screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102925328A CN102798050A (en) | 2012-08-17 | 2012-08-17 | LED (Light-Emitting Diode) high-voltage constant-current waterproof advertising lamp box backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102925328A CN102798050A (en) | 2012-08-17 | 2012-08-17 | LED (Light-Emitting Diode) high-voltage constant-current waterproof advertising lamp box backlight source |
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| Publication Number | Publication Date |
|---|---|
| CN102798050A true CN102798050A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102925328A Pending CN102798050A (en) | 2012-08-17 | 2012-08-17 | LED (Light-Emitting Diode) high-voltage constant-current waterproof advertising lamp box backlight source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151983A (en) * | 2016-08-18 | 2016-11-23 | 四川蓝景光电技术有限责任公司 | A kind of LED constant current Illuminative for sign system based on 220V alternating current |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999996Y (en) * | 2007-01-24 | 2008-01-02 | 林原 | Lighting lamp strips |
| CN201162995Y (en) * | 2008-02-26 | 2008-12-10 | 李忠训 | LED illumination module group lamp |
| CN101922641A (en) * | 2010-09-26 | 2010-12-22 | 李忠训 | Constant current led module |
| JP2011204845A (en) * | 2010-03-25 | 2011-10-13 | Toshiba Lighting & Technology Corp | Light emitting device |
| CN202791624U (en) * | 2012-08-17 | 2013-03-13 | 李忠训 | Light-emitting diode (LED) high pressure constant current waterproof advertising lamp box backlight |
-
2012
- 2012-08-17 CN CN2012102925328A patent/CN102798050A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999996Y (en) * | 2007-01-24 | 2008-01-02 | 林原 | Lighting lamp strips |
| CN201162995Y (en) * | 2008-02-26 | 2008-12-10 | 李忠训 | LED illumination module group lamp |
| JP2011204845A (en) * | 2010-03-25 | 2011-10-13 | Toshiba Lighting & Technology Corp | Light emitting device |
| CN101922641A (en) * | 2010-09-26 | 2010-12-22 | 李忠训 | Constant current led module |
| CN202791624U (en) * | 2012-08-17 | 2013-03-13 | 李忠训 | Light-emitting diode (LED) high pressure constant current waterproof advertising lamp box backlight |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151983A (en) * | 2016-08-18 | 2016-11-23 | 四川蓝景光电技术有限责任公司 | A kind of LED constant current Illuminative for sign system based on 220V alternating current |
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Application publication date: 20121128 |