CN202733675U - Non-waterproof LED high-voltage constant-current backlight source of advertising lamp box - Google Patents
Non-waterproof LED high-voltage constant-current backlight source of advertising lamp box Download PDFInfo
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- CN202733675U CN202733675U CN2012204075075U CN201220407507U CN202733675U CN 202733675 U CN202733675 U CN 202733675U CN 2012204075075 U CN2012204075075 U CN 2012204075075U CN 201220407507 U CN201220407507 U CN 201220407507U CN 202733675 U CN202733675 U CN 202733675U
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Abstract
The utility model relates to the novel advertising logo lamp box LED backlight technology and provides a non-waterproof LED high-voltage constant-current backlight source of an advertising lamp box. The non-waterproof LED high-voltage constant-current backlight source comprises an LED circuit board and clamps, wherein the circuit board is powered by high voltage of 48V and driven by constant current, and the clamps of 'n'-shaped groove structures are used for fixing the LED circuit board. Power source wires are led out form the clamps and are connected with a positive electrode and a negative electrode of the circuit board. High voltage of 48V and low current are firstly adopted in the industry of utilizing LED as backlight sources of the advertising lamp box, and meanwhile, the constant-current drive technology is adopted, so that the non-waterproof LED high-voltage constant-current backlight source is high in constant current accuracy, low in LED luminance decrease, long in service life, few in chip peripheral components, low in cost, high in attenuation resistance and particularly applicable to long-distance power supply, and luminance can be kept constant at the highest voltage attenuation which can reach 9V. Furthermore, two imported constant-current chips LC1912 with original packages are adopted in the circuit and independently work, 'double-insurance' is realized, and the problem of difficulty in maintenance of an LED backlight source lamp box is thoroughly obviated.
Description
Technical field
The utility model relates to a kind of advertisement and identifier lamp box LED-backlit technology, provides a kind of LED high voltage and constant current non-watertight light-negative source of advertisement lamphouse.
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 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 so that the LED power supply just often is operated in the open-air situation, this just requires the LED power supply must possess the sun-proof ability of good 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 just high, and decay is just large, so just need to connect more power line, trouble is installed.
In a word, there is following shortcoming in this scheme: power supply distance is short, electric current is high, voltage antidamping ability, and connection line is many, 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 utility model of LED high voltage and constant current light-negative source of advertisement lamphouse has well solved above problem.
The utility model content
The purpose of this utility model is to provide a kind of LED high voltage and constant current non-watertight light-negative source of advertisement lamphouse.
The utility model is to achieve these goals by the following technical solutions:
A kind of LED high voltage and constant current light-negative source of advertisement lamphouse is characterized in that: the LED wiring board, be used for fixed L ED wiring board " clamp of [" type groove structure leads to power line in the described clamp, and described power line is connected with the both positive and negative polarity of wiring board.
In the such scheme, adopted high pressure 48V power supply during described led circuit plate design.
In the such scheme, described led circuit plate has adopted two LC1912 constant current chips to provide driving for LED, unique dual fail-safe circuit design.
In the such scheme, the inside grooves of described clamp is provided with one and is used for and the small column of the projection that wiring board positions.
In the such scheme, be provided for the installing hole that is fixed on the lamp box rectangular on the described clamp.
In the such scheme, also comprise screw, described power line is connected by screw with the both positive and negative polarity of wiring board.
The utlity model has following beneficial effect:
One, the utility model 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 utility model has adopted constant-current drive technology, and constant current accuracy makes lamp box surface brightness uniformity up to 2%;
Three, the utility model adopts constant-current drive technology, and the circuital current fluctuation is little, so the LED longer service life, light decay is less;
Four, the utility model adopts the LC1912 constant current chip, and the chip periphery components and parts are few, and cost is low;
Five, the utility model antidamping ability is strong, especially is fit to remote power-feeding, and voltage attenuation reaches as high as 9V, and brightness is constant;
Six, the utility model has adopted two LC1912 constant current chips to form unique dual fail-safe circuit design, and work independent of one another is independent of each other, and reliability is high, greatly reduces the product repairing rate;
Seven, distance is fixing between the utility model set of hanging scrolls, and whole screen shipment is easy for installation, and is quick;
Eight, the utlity model has energy-saving and environmental protection, brightness height, replace traditional fluorescent lamp.
Description of drawings
Fig. 1 is overall structure figure of the present utility model;
Fig. 2 is the utility model circuit theory diagrams.
1-LED circuit board, 2-clamp, 3-power line, 4-screw among the figure, the 5-LED constant current chip.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
The non-watertight light-negative source of advertisement lamphouse of this a kind of LED high voltage and constant current as shown in Figure 1, comprise the LED wiring board, described LED wiring board adopts high pressure 48V power supply, and form unique dual fail-safe circuit design with two imported with original packaging constant current chip LC1912, " [" type groove structure clamp that is used for fixed L ED wiring board, the inside grooves of described clamp is provided with one and is used for and the small column of the projection that wiring board positions, two small sircle holes are arranged as installing hole on the clamp above the ear, be used for being fixed on above the lamp box roller shutter type is rectangular, comprise also in clamp leading to power line that described power line is connected by screw with the both positive and negative polarity of wiring board.
The utlity model has following characteristics:
One, the utility model in actual use can be according to the requirement of client to brightness, and line length can be customized.
Two, because utility model 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 design has improved the reliability of product 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 only has 48V, and human body is belonged to safe voltage.
Claims (6)
1. non-watertight light-negative source of advertisement lamphouse of LED high voltage and constant current, it is characterized in that: comprise the LED wiring board, be used for fixed L ED circuit board " clamp of [" type groove structure leads to power line in the described clamp, and described power line is connected with the both positive and negative polarity of circuit board.
2. the non-watertight light-negative source of advertisement lamphouse of a kind of LED high voltage and constant current according to claim 1, it is characterized in that: described wiring board has adopted the 48V high voltage supply.
3. the non-watertight light-negative source of advertisement lamphouse of a kind of LED high voltage and constant current according to claim 1, it is characterized in that: described wiring board has adopted two LC1912 constant current chips simultaneously LED to be driven.
4. the non-watertight light-negative source of advertisement lamphouse of a kind of LED high voltage and constant current according to claim 1 is characterized in that: the inside grooves of described clamp is provided with one and is used for and the small column of the projection that wiring board positions.
5. the non-watertight light-negative source of advertisement lamphouse of a kind of LED high voltage and constant current according to claim 1 is characterized in that: be provided for the installing hole that is fixed on the lamp box rectangular on the described clamp.
6. the non-watertight light-negative source of advertisement lamphouse of a kind of LED high voltage and constant current according to claim 1, it is characterized in that: also comprise screw, described power line is connected by screw with the both positive and negative polarity of wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204075075U CN202733675U (en) | 2012-08-17 | 2012-08-17 | Non-waterproof LED high-voltage constant-current backlight source of advertising lamp box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204075075U CN202733675U (en) | 2012-08-17 | 2012-08-17 | Non-waterproof LED high-voltage constant-current backlight source of advertising lamp box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733675U true CN202733675U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204075075U Expired - Lifetime CN202733675U (en) | 2012-08-17 | 2012-08-17 | Non-waterproof LED high-voltage constant-current backlight source of advertising lamp box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798051A (en) * | 2012-08-17 | 2012-11-28 | 李忠训 | LED (light-emitting diode) high-voltage constant-current non-watertight backlight source for advertising lamp house |
-
2012
- 2012-08-17 CN CN2012204075075U patent/CN202733675U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798051A (en) * | 2012-08-17 | 2012-11-28 | 李忠训 | LED (light-emitting diode) high-voltage constant-current non-watertight backlight source for advertising lamp house |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180702 Address after: 610000 Chengdu, Sichuan, Shuangliu District, Southwest Airport Economic Development Zone two road two, 1000 Patentee after: BLUEVIEW ELEC-OPTIC TECH Co.,Ltd. Address before: 610000 1, unit 1, No. 26, Shuang Qing Road, Chenghua District, Chengdu, Sichuan 1603 Patentee before: Li Zhongxun |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |