CN2842973Y - Novel LED lamp string - Google Patents
Novel LED lamp string Download PDFInfo
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- CN2842973Y CN2842973Y CNU2005200756763U CN200520075676U CN2842973Y CN 2842973 Y CN2842973 Y CN 2842973Y CN U2005200756763 U CNU2005200756763 U CN U2005200756763U CN 200520075676 U CN200520075676 U CN 200520075676U CN 2842973 Y CN2842973 Y CN 2842973Y
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- bridge rectifier
- led lamp
- rectifying
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Abstract
The utility model discloses a novel LED lamp string, comprising at least two bridge rectifier circuits respectively formed by arranging and connecting four rectifying tubes in the form of rectifying bridge and LED lamp sets connected in the output circuit of each bridge rectifier circuit. And the two rectifying tubes intersecting the negative electrode terminal or the two rectifying tubes intersecting the positive electrode terminal in the next bridge rectifier circuit and the two rectifying tubes intersecting the positive electrode terminal or the two rectifying tubes intersecting the negative electrode terminal in the previous bridge rectifier circuit compose a bridge rectifier circuit. The LED lamp sets in the output circuits of each two neighbouring bridge rectifier circuits have opposite polarity directions. Of the utility model, each lamp string can be provided with multiple LED lamp sets and each LED lamp set is respectively supplied with electric power by a bridge rectifying bridge. When a lamp string needs to connect more LED, it can be realized by dividing the LED into a plurality of groups, specially suitable for the situation of lower alternating voltage. And two neighbouring bridge rectifier circuits can share two rectifying tubes only to make cost lower.
Description
Technical field
The present invention relates to a kind of lamp string, especially is the lamp string of light source with the light-emitting diode.
Background technology
Existing lamp string, as Chinese utility model " a kind of color lamp that is used for decoration " (patent No. is 03273878.1), its operating circuit as shown in Figure 1, comprise rectification circuit and lamp string, its rectification circuit adopts rectifier bridge, the input of rectifier bridge is connected with AC power, and its lamp string is connected on the load circuit of rectification circuit with the series connection form by 10-50 light-emitting diode (LED).This lamp string, owing to limit by the power of rectifier bridge and alternating current voltage, the number of the light-emitting diode in every cluster of lamps, ornamental string can't be too many.
In actual use, often be that a power supply offers a plurality of lamp strings uses, the general practice as shown in Figure 2, from the negative pole of last light-emitting diode of the output of rectifier bridge and last cluster of lamps, ornamental string extracting power supply cord to an electric connector respectively, next cluster of lamps, ornamental was ganged up another suitable electric connector and was received this electric connector to obtain power supply.This lamp string, owing to limit by the power of rectifier bridge, the lamp string number that can be connected in series also is restricted.The another kind of practice as shown in Figure 3, from two ac input ends of rectifier bridge respectively extracting power supply cord provide power supply to electric connector for next cluster of lamps, ornamental string, insert another suitable electric connector by electric connector again and draw alternating current, receive another rectifier bridge, and then insert next cluster of lamps, ornamental string.This lamp string, because the power supply of each cluster of lamps, ornamental string is alternating current and supplies with after rectifier bridge rectification separately, solved the problem that lamp string number is subjected to the rectifier bridge Power Limitation, but because the power supply of every cluster of lamps, ornamental string is all introduced from the ac input end of a last cluster of lamps, ornamental string by power line, like this, the length direction of whole lamp string is with regard to many power lines, because lead is more expensive, the lamp string has certain-length again, and many leads have just increased the cost of lamp string greatly.
The now existing LED lamp string of comparatively saving lead, as shown in Figure 4, four rectifying tubes are arranged with the form of rectifier bridge connect into bridge rectifier, the output loop of bridge rectifier is drawn, is led to the intersection point of the positive terminal of two rectifying tubes in addition by the power line straight line by the intersection point of the negative pole end of wherein two rectifying tubes, each LED is serially connected on the output loop of bridge rectifier successively with same polar orientation, as shown in Figure 5, also can will organize on the output loop that the LED lamp is connected in parallel on bridge rectifier more.This LED lamp string, when many polyphones connect, each cluster of lamps, ornamental string was supplied with LED light string by alternating current after the bridge rectifier rectification of each string self, like this, the string number that can connect the lamp string is not subjected to the Power Limitation of bridge rectifier, if do not consider line loss, can unrestrictedly arbitrarily be connected in series.And when many polyphones connect, on the length direction of each cluster of lamps, ornamental string, except that two power lines introducing alternating current, have only a power line that connects LED light string as the output loop of bridge rectifier, length direction has been saved a power line.But this LED lamp string, the number of the LED that can connect in each cluster of lamps, ornamental string is less, when LED lamp group has only one group, if the too many LED of serial connection often can't work because of pressure drop causes LED; If LED lamp group organizes parallel connection more, then also can the too little LED of electric current can't work in each group because of the electric current shunting causes.And this LED lamp string, when many strings were connected, each string needed independently four bridge rectifiers that rectifying tube is formed, and cost is higher.
Summary of the invention
The purpose of this invention is to provide in a kind of every cluster of lamps, ornamental string and can connect more LED and lower-cost Novel LED light string.
Technical scheme of the present invention is such: a kind of Novel LED light string, comprise by four rectifying tubes and arrange the bridge rectifier that is formed by connecting with the form of rectifier bridge and be connected LED lamp group on the output loop of this bridge rectifier, above-mentioned bridge rectifier and above-mentioned LED lamp group at least respectively have two groups, and bridge rectifier of two rectifying tubes compositions of intersecting of positive terminal intersects in two rectifying tubes intersecting of negative pole end intersects in the next bridge rectifier two rectifying tubes or positive terminal and the last bridge rectifier two rectifying tubes or negative pole end; The opposite polarity directions of the LED lamp group on the output loop of each adjacent two above-mentioned bridge rectifier.
The positive terminal of two rectifying tubes of first bridge rectifier of close AC power is connected in the above-mentioned bridge rectifier, and two rectifying tubes that negative pole end intersects in two rectifying tubes that positive terminal intersects in the above-mentioned next bridge rectifier and the last bridge rectifier are formed a bridge rectifier.
The negative pole end of two rectifying tubes of first bridge rectifier of close AC power is connected in the above-mentioned bridge rectifier, and two rectifying tubes that negative pole end intersects in two rectifying tubes that positive terminal intersects in the above-mentioned next bridge rectifier and the last bridge rectifier are formed an above-mentioned bridge rectifier.
Two outputs of above-mentioned AC power cause an electric connector by power line respectively.
Above-mentioned electric connector is an electrical socket.
The two ends of above-mentioned each LED lamp group are serially connected with resistance respectively.
After adopting such scheme, a kind of Novel LED light string of the present invention, can be provided with many group LED lamp groups in every cluster of lamps, ornamental string, and each LED lamp group is respectively by a bridge rectifier bridge power supply, when needing to connect more LED in the cluster of lamps, ornamental string, just being divided into some groups, can realize LED, if do not consider the line loss problem, can infinitely organize serial connection, be specially adapted to the lower situation of alternating voltage.And among the present invention, two adjacent bridge rectifiers can shared two rectifying tubes, and cost is lower.
Description of drawings
Fig. 1 is circuit theory diagrams of commonly using product one.
Fig. 2 is circuit theory diagrams of commonly using product two.
Fig. 3 is circuit theory diagrams of commonly using product three.
Fig. 4 is circuit theory diagrams of commonly using product four.
Fig. 5 is circuit theory diagrams of commonly using product five.
Fig. 6 is the circuit theory diagrams of the embodiment of the invention one.
Fig. 7 is the circuit theory diagrams of the embodiment of the invention two.
Embodiment
The embodiment one of a kind of Novel LED light string of the present invention as shown in Figure 6, comprise rectifying tube VD1, VD2, VD3, VD4, VD5, VD6, resistance R 1, R2, R3, R4, be connected in series the LED lamp group 1 that forms successively with same polar orientation by several light-emitting diodes D1-Dn, be connected in series the LED lamp group 2 that forms successively with same polar orientation by several light-emitting diodes Dn+1-Dm, with electrical socket P1, wherein, one end of AC power connects the negative pole end of rectifying tube VD1 respectively, the positive terminal of VD3 and the negative pole end of VD5, the other end of AC power connects the negative pole end of rectifying tube VD2 respectively, the positive terminal of VD4 and the negative pole end of VD6, the positive terminal of the positive terminal of rectifying tube VD1 and rectifying tube VD2 is connected to an end of resistance R 1 jointly, the other end of resistance R 1 connects the negative pole end of light-emitting diode D1, rectifying tube VD3, the negative pole end of VD4 connects the end of resistance R 2 and R3 jointly, the other end of resistance R 2 connects the positive terminal of light-emitting diode Dn, the other end of resistance R 3 connects the positive terminal of light-emitting diode Dn+1, rectifying tube VD5, the positive terminal of VD6 connects an end of resistance R 4 jointly, and the other end of resistance R 4 connects the negative pole end of light-emitting diode Dm.The two ends of AC power and be connected respectively to two inputs of electrical socket P1.
During present embodiment work, when if alternating current is in first positive half cycle, the output a of alternating current end is for just, the b end is for negative, rectifying tube VD3, VD2, VD6 conducting, electric current holds the output b end by rectifying tube VD3, resistance R 2, LED lamp group 1, resistance R 1, rectifying tube VD2 and alternating current to form the loop from the output a of alternating current, obtains halfwave rectifier voltage in resistance R 2, LED lamp group 1, resistance R on 1 loop.And the output a of alternating current end forms another loop by the output b end of resistance R 3, rectifying tube VD3, LED lamp group 2, resistance R 4, rectifying tube VD6 and alternating current, obtains halfwave rectifier voltage in resistance R 3, LED lamp group 2, resistance R on 4 loops equally.When second half cycle (negative half period) comes, the output a end of alternating current is for negative, b end is for just, rectifying tube VD4, VD1, VD5 conducting, electric current holds the output a end by rectifying tube VD4, resistance R 2, LED lamp group 1, resistance R 1, rectifying tube VD1 and alternating current to form the loop from the output b of alternating current, obtains another halfwave rectifier voltage on resistance R 2, LED lamp group 1, resistance R 1 loop; And the output b of alternating current end forms another loop by the output a end of rectifying tube VD4, resistance R 3, LED lamp group 2, resistance R 4, rectifying tube VD5 and alternating current, obtains another halfwave rectifier voltage equally on resistance R 3, LED lamp group 2, resistance R 4 loops.Repeat with this, just obtain all-wave pulsation double half-wave rectification voltage respectively on LED lamp group 1 and LED lamp group 2, LED lamp group 1, LED lamp group 2 can not be flashed when luminous, have prolonged its useful life.
In the present embodiment, rectifying tube VD1, VD2, VD3, VD4 form a bridge rectifier, rectifying tube VD3, VD4, VD5, VD6 form another bridge rectifier, LED lamp string is divided into two groups of LED lamp groups, these two groups of LED organize each free bridge rectifier power supply, can connect more LED in one cluster of lamps, ornamental string, and two bridge rectifiers can shared two rectifying tubes, cost is lower.
The embodiment two of a kind of Novel LED light string of the present invention as shown in Figure 7, comprise rectifying tube VD1, VD2, VD3, VD4, VD5, VD6, VD7, VD8, VD9, VD10, resistance R 1, R2, R3, R4, R5, R6, R7, R8, be connected in series the LED lamp group 1 that forms successively with the identical polar direction by several light-emitting diodes D1-Dn, be connected in series the LED lamp group 2 that forms successively with the identical polar direction by several light-emitting diodes Dn+1-Dm, be connected in series the LED lamp group 3 that forms successively with the identical polar direction by several light-emitting diodes Dm+1-Dx, be connected in series LED lamp group 4 and the electrical socket P1 that forms successively with the identical polar direction by several light-emitting diodes Dx+1-Dy.Wherein, an end of AC power connects the negative pole end of rectifying tube VD1, the positive terminal of rectifying tube VD3, the negative pole end of rectifying tube VD5, the positive terminal of rectifying tube VD7, the negative pole end of rectifying tube VD9 respectively; The other end of AC power connects the negative pole end of rectifying tube VD2, the positive terminal of rectifying tube VD4, the negative pole end of rectifying tube VD6, the positive terminal of rectifying tube VD8, the negative pole end of rectifying tube VD10 respectively.The positive terminal of the positive terminal of rectifying tube VD1 and rectifying tube VD2 is connected to an end of resistance R 1 jointly, the other end of resistance R 1 connects the negative pole end of light-emitting diode D1, rectifying tube VD3, the negative pole end of VD4 connects the end of resistance R 2 and R3 jointly, the other end of resistance R 2 connects the positive terminal of light-emitting diode Dn, the other end of resistance R 3 connects the positive terminal of light-emitting diode Dn+1, rectifying tube VD5, the positive terminal of VD6 connects resistance R 4 jointly, the end of R5, the other end of resistance R 4 connects the negative pole end of light-emitting diode Dm, and the other end of resistance R 5 connects the negative pole end of light-emitting diode Dm+1.The negative pole end of rectifying tube VD7, VD8 connects the end of resistance R 6, R7 jointly, and the other end of resistance R 6 connects the positive terminal of light-emitting diode Dx, and the other end of resistance R 7 connects the positive terminal of light-emitting diode DX+1.The positive terminal of rectifying tube VD9, VD10 connects an end of resistance R 8 jointly, and resistance R 8 other ends connect light-emitting diode Dy negative pole end.
During present embodiment work, when if alternating current is in first positive half cycle, the output a of alternating current end is for just, the b end is for negative, rectifying tube VD2, VD3, VD6, VD7, VD10 conducting, the output a end of alternating current forms the loop by the output b end of rectifying tube VD3, resistance R 2, LED lamp group 1, resistance R 1, rectifying tube VD2 and alternating current, obtains halfwave rectifier voltage in resistance R 2, LED lamp group 1, resistance R on 1 loop.Simultaneously, the output a of alternating current end forms another loop by the output b end of rectifying tube VD3, resistance R 3, LED lamp group 2, resistance R 4, rectifying tube VD6 and alternating current, obtains halfwave rectifier voltage in resistance R 3, LED lamp group 2, resistance R on 4 loops equally.Simultaneously, the output a of alternating current end forms another loop by the output b end of rectifying tube VD7, resistance R 6, LED lamp group 3, resistance R 5, rectifying tube VD6 and alternating current, obtains halfwave rectifier voltage in resistance R 3, LED lamp group 3, resistance R on 4 loops equally.Simultaneously, the output a of alternating current end forms another loop by the output b end of rectifying tube VD7, resistance R 7, LED lamp group 4, resistance R 8, rectifying tube VD10 and alternating current, obtains halfwave rectifier voltage in resistance R 7, LED lamp group 4, resistance R on 8 loops equally.When second half cycle (negative half period) comes, the output a end of alternating current is for negative, b end is for just, rectifying tube VD1, VD4, VD5, VD8, VD9 conducting, electric current holds the output a end by rectifying tube VD4, resistance R 2, LED lamp group 1, resistance R 1, rectifying tube VD1 and alternating current to form the loop from the output b of alternating current, obtains another halfwave rectifier voltage on resistance R 2, LED lamp group 1, resistance R 1 loop; Simultaneously, the output b end of alternating current forms another loop by the output a end of rectifying tube VD4, resistance R 3, LED lamp group 2, resistance R 4, rectifying tube VD5 and alternating current, obtains another halfwave rectifier voltage equally on resistance R 3, LED lamp group 2, resistance R 4 loops.Simultaneously, the output b end of alternating current forms another loop by the output a end of rectifying tube VD8, resistance R 6, LED lamp group 3, resistance R 5, rectifying tube VD5 and alternating current, obtains another halfwave rectifier voltage equally on resistance R 6, LED lamp group 3, resistance R 5 loops.Simultaneously, the output b end of alternating current forms another loop by the output a end of rectifying tube VD8, resistance R 7, LED lamp group 4, resistance R 8, rectifying tube VD9 and alternating current, obtains another halfwave rectifier voltage equally on resistance R 7, LED lamp group 4, resistance R 8 loops.Repeat with this, just on LED lamp group 1, LED lamp group 2, LED lamp group 3 and LED lamp group 4, obtain all-wave pulsation double half-wave rectification voltage respectively.
Above-mentioned two embodiment only are of the present invention illustrating, and do not limit to protection scope of the present invention, if the present invention does not consider the line loss problem, can be provided with unlimited group of LED lamp group in every cluster of lamps, ornamental string, and promptly the LED number that can connect is unrestricted.
Claims (6)
1, a kind of Novel LED light string, comprise by four rectifying tubes and arrange the bridge rectifier that is formed by connecting with the form of rectifier bridge and be connected LED lamp group on the output loop of this bridge rectifier, it is characterized in that: above-mentioned bridge rectifier and above-mentioned LED lamp group at least respectively have two groups, and bridge rectifier of two rectifying tubes compositions of intersecting of positive terminal intersects in two rectifying tubes intersecting of negative pole end intersects in the next bridge rectifier two rectifying tubes or positive terminal and the last bridge rectifier two rectifying tubes or negative pole end; The opposite polarity directions of the LED lamp group on the output loop of each adjacent two above-mentioned bridge rectifier.
2, a kind of Novel LED light string according to claim 1, it is characterized in that: the positive terminal of two rectifying tubes of first bridge rectifier of close AC power is connected in the above-mentioned bridge rectifier, and two rectifying tubes that negative pole end intersects in two rectifying tubes that positive terminal intersects in the above-mentioned next bridge rectifier and the last bridge rectifier are formed a bridge rectifier.
3, a kind of Novel LED light string according to claim 1, it is characterized in that: the negative pole end of two rectifying tubes of first bridge rectifier of close AC power is connected in the above-mentioned bridge rectifier, and two rectifying tubes that negative pole end intersects in two rectifying tubes that positive terminal intersects in the above-mentioned next bridge rectifier and the last bridge rectifier are formed an above-mentioned bridge rectifier.
4, a kind of Novel LED light string according to claim 1 is characterized in that: two outputs of AC power cause an electric connector by power line respectively.
5, a kind of Novel LED light string according to claim 4, it is characterized in that: above-mentioned electric connector is an electrical socket.
6, according to each described a kind of Novel LED light string of claim 1-3, it is characterized in that: the two ends of above-mentioned each LED lamp group are serially connected with resistance respectively.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200756763U CN2842973Y (en) | 2005-09-16 | 2005-09-16 | Novel LED lamp string |
| US11/332,791 US20070063657A1 (en) | 2005-09-16 | 2006-01-12 | Light string and method of assembling thereof |
| CA002542227A CA2542227A1 (en) | 2005-09-16 | 2006-04-06 | Improved light string and method of assembling thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200756763U CN2842973Y (en) | 2005-09-16 | 2005-09-16 | Novel LED lamp string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842973Y true CN2842973Y (en) | 2006-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200756763U Expired - Fee Related CN2842973Y (en) | 2005-09-16 | 2005-09-16 | Novel LED lamp string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842973Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330782B (en) * | 2007-06-22 | 2011-11-09 | 三星Led株式会社 | LED drive circuit and LED array device |
-
2005
- 2005-09-16 CN CNU2005200756763U patent/CN2842973Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330782B (en) * | 2007-06-22 | 2011-11-09 | 三星Led株式会社 | LED drive circuit and LED array device |
| CN102291865A (en) * | 2007-06-22 | 2011-12-21 | 三星Led株式会社 | Alternate current driven light emitting device and lighting device |
| CN102291865B (en) * | 2007-06-22 | 2014-10-08 | 三星电子株式会社 | Alternate current driven light emitting device |
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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 |