CN203435205U - LED lamp band assembly - Google Patents
LED lamp band assembly Download PDFInfo
- Publication number
- CN203435205U CN203435205U CN201320552633.4U CN201320552633U CN203435205U CN 203435205 U CN203435205 U CN 203435205U CN 201320552633 U CN201320552633 U CN 201320552633U CN 203435205 U CN203435205 U CN 203435205U
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- led lamp
- circuit
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- power supply
- input
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Abstract
The utility model discloses a LED lamp band assembly. The assembly comprises a plurality of LED lamps and a strip-shape circuit board. The plurality of LED lamps are connected in series to and are assembled on the strip-shape circuit board. A switch power supply is also comprised. An input terminal of the switch power supply is connected with an output terminal of an alternating current power supply. Two output terminals of the switch power supply are connected with two ends of the plurality of LED lamps which are connected in series respectively. A constant direct voltage output by the switch power supply is taken as a driving power supply for the plurality of LED lamps. In the utility model, the LED lamps are not easy to be damaged and electro-optical conversion efficiency of the LED lamps are greatly increased.
Description
Technical field
The utility model relates to LED field, particularly relates to a kind of LED lamp strip assembly.
Background technology
At present, LED lamp band is generally directly driven by single rectifier bridge stack, the input of rectifier bridge stack connects alternating current, output connects LED lamp band, the direct voltage of its output is as the driving power of described LED lamp band, the LED lamp band directly being driven by rectifier bridge stack has following shortcoming: due to rectifier bridge stack output is the direct current with a large amount of alternating components, voltage fluctuation is indefinite, the switch of some jumboes easily causes the fluctuation of electrical network, easily cause LED lamp band to damage because of too high voltage, existence because of alternating component, LED luminous efficiency is low, during real work, LED luminous flux reduces by 50% to I haven't seen you for ages, simultaneously for LED lamp band can be worked within the scope of 176-264V, need to be connected in series a large amount of resistance and carry out dividing potential drop, larger so a part of voltage with hot form consumption on resistance, also reduced the electro-optical efficiency of LED lamp band.
Summary of the invention
Technical problem to be solved in the utility model is: make up above-mentioned the deficiencies in the prior art, propose a kind of LED lamp strip assembly, it is exported constant direct voltage by Switching Power Supply and directly drives, and LED lamp is not fragile, has significantly improved the electro-optical efficiency of LED lamp.
Technical problem of the present utility model is solved by following technical scheme:
A kind of LED lamp strip assembly, comprise a plurality of LED lamps and banded wiring board, described a plurality of LED lamp is connected in series on the wiring board that is assembled in described band shape, also comprise Switching Power Supply, the input of described Switching Power Supply is connected with the output of AC power, two outputs of described Switching Power Supply are connected with the two ends of the described a plurality of LED lamps that are connected in series respectively, and the constant direct voltage of described Switching Power Supply output is as the driving power of described a plurality of LED lamps.
Preferably, described Switching Power Supply comprises protection and absorbing circuit, rectification and filter circuit, DC transfer circuit, filter circuit, sampling and error amplifying circuit and control circuit, the input of described protection and absorbing circuit is connected with the output of AC power, the output of described protection and absorbing circuit is connected with the input of described rectification and filter circuit, the output of described rectification and filter circuit is connected with the first input end of described DC transfer circuit, the output of described DC transfer circuit is connected with the input of described filter circuit, two outputs of described filter circuit are connected with the two ends of the described a plurality of LED lamps that are connected in series respectively, the input of described sampling and error amplifying circuit is connected with one of them output of described filter circuit, the output of described sampling and error amplifying circuit is connected with the input of described control circuit, the output of described control circuit is connected with the second input of described DC transfer circuit.
Preferably, the direct voltage of described Switching Power Supply output is a constant voltage in 180-300V.
Preferably, the direct voltage of described Switching Power Supply output is 220V.
Preferably, described AC power is 176-264V.
Preferably, the wiring board of described band shape is banded flexible circuit board.
Preferably, described LED lamp is 30-120.
Preferably, described LED lamp is 60.
The beneficial effect that the utility model is compared with the prior art is: in LED lamp strip assembly of the present utility model, LED lamp is directly driven by Switching Power Supply, easy burn-out not, life-span is extended, the utilance of LED can bring up to 100%, as the LED of a nominal light flux 10LM also can reach 10LM in this utility model, can improve electro-optical efficiency 10% left and right simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of LED lamp strip assembly in the utility model embodiment;
Fig. 2 is the schematic diagram of LED lamp strip assembly in the utility model one preferred embodiment.
Embodiment
Preferred embodiment the utility model is described in further detail to contrast accompanying drawing combination below.
The utility model provides a kind of LED lamp strip assembly, as shown in Figure 1, comprise LED lamp band and Switching Power Supply 3, this LED lamp band comprises a plurality of LED lamps 1 and banded wiring board 2, a plurality of LED lamps 1 are connected in series and are assembled on banded wiring board 2, the input of Switching Power Supply 3 is connected with the output of AC power, two outputs of described Switching Power Supply 3 are connected with the two ends of the described a plurality of LED lamps that are connected in series respectively, and the constant direct voltage of described Switching Power Supply output is as the driving power of described a plurality of LED lamps.
As shown in Figure 2, in a preferred embodiment, described Switching Power Supply 3 comprises protection and absorbing circuit 31, current rectifying and wave filtering circuit 32, DC transfer circuit 33, filter circuit 34, sampling and error amplifying circuit 35 and control circuit 36, the input of described protection and absorbing circuit 31 is connected with the output of AC power, the output of described protection and absorbing circuit is connected with the input of described current rectifying and wave filtering circuit 32, the output of described current rectifying and wave filtering circuit 32 is connected with the first input end of described DC transfer circuit 33, the output of described DC transfer circuit 33 is connected with the input of described filter circuit 34, two outputs of described filter circuit 34 are connected with the two ends of the described a plurality of LED lamps that are connected in series respectively, the input of described sampling and error amplifying circuit 35 is connected with one of them output of described filter circuit, the output of described sampling and error amplifying circuit 35 is connected with the input of described control circuit 36, the output of described control circuit 36 is connected with the second input of described DC transfer circuit 33.
LED lamp is preferably 30-120, the civil power of 176-264V (AC power) is by protection and absorbing circuit 31, surge voltage in filtering civil power and surge current, through current rectifying and wave filtering circuit 32, obtain the direct current of 240-380V, then successively by DC transfer circuit 33, filter circuit 34, from the voltage of filter circuit 34 outputs, through sampling and error amplifying circuit 35, feed back to control circuit 36, form voltage stabilizing loop, to guarantee that within the scope of filter circuit 34 output 180-300V, a galvanic current pressure is worked with driving LED lamp band, assurance is because of city's electro-mechanical wave, the change of LED lamp band quantity or length can not affect the variation of output voltage.
Further preferably, 60 LED lamps are connected in series to be assembled in flexible circuit board and form flexible LED rope light, and the direct voltage of Switching Power Supply output is 220V.
In reality, as required, LED lamp band also can comprise a plurality of resistance, and resistance is connected with LED lamp, for dividing potential drop, and protection LED lamp, and allow different colors, the LED lamp of different manufacturers can be with the power supply of same voltage.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of ordinary skill in the field; without departing from the concept of the premise utility; can also make some being equal to substitutes or obvious modification, and performance or purposes identical, all should be considered as belonging to protection range of the present utility model.
Claims (8)
1. a LED lamp strip assembly, comprise a plurality of LED lamps and banded wiring board, described a plurality of LED lamp is connected in series on the wiring board that is assembled in described band shape, it is characterized in that: also comprise Switching Power Supply, the input of described Switching Power Supply is connected with the output of AC power, two outputs of described Switching Power Supply are connected with the two ends of the described a plurality of LED lamps that are connected in series respectively, and the constant direct voltage of described Switching Power Supply output is as the driving power of described a plurality of LED lamps.
2. LED lamp strip assembly as claimed in claim 1, it is characterized in that: described Switching Power Supply comprises protection and absorbing circuit, rectification and filter circuit, DC transfer circuit, filter circuit, sampling and error amplifying circuit and control circuit, the input of described protection and absorbing circuit is connected with the output of AC power, the output of described protection and absorbing circuit is connected with the input of described rectification and filter circuit, the output of described rectification and filter circuit is connected with the first input end of described DC transfer circuit, the output of described DC transfer circuit is connected with the input of described filter circuit, two outputs of described filter circuit are connected with the two ends of the described a plurality of LED lamps that are connected in series respectively, the input of described sampling and error amplifying circuit is connected with one of them output of described filter circuit, the output of described sampling and error amplifying circuit is connected with the input of described control circuit, the output of described control circuit is connected with the second input of described DC transfer circuit.
3. LED lamp strip assembly as claimed in claim 1 or 2, is characterized in that: the direct voltage of described Switching Power Supply output is a constant voltage in 180-300V.
4. LED lamp strip assembly as claimed in claim 1 or 2, is characterized in that: the direct voltage of described Switching Power Supply output is 220V.
5. LED lamp strip assembly as claimed in claim 1 or 2, is characterized in that: described AC power is 176-264V.
6. LED lamp strip assembly as claimed in claim 1 or 2, is characterized in that: the wiring board of described band shape is banded flexible circuit board.
7. LED lamp strip assembly as claimed in claim 1 or 2, is characterized in that: described LED lamp is 30-120.
8. LED lamp strip assembly as claimed in claim 1 or 2, is characterized in that: described LED lamp is 60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552633.4U CN203435205U (en) | 2013-09-06 | 2013-09-06 | LED lamp band assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552633.4U CN203435205U (en) | 2013-09-06 | 2013-09-06 | LED lamp band assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203435205U true CN203435205U (en) | 2014-02-12 |
Family
ID=50064214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320552633.4U Expired - Fee Related CN203435205U (en) | 2013-09-06 | 2013-09-06 | LED lamp band assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203435205U (en) |
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2013
- 2013-09-06 CN CN201320552633.4U patent/CN203435205U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20160906 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |