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WO2007033527A1 - Guirlande a diodes electroluminescentes - Google Patents

Guirlande a diodes electroluminescentes Download PDF

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Publication number
WO2007033527A1
WO2007033527A1 PCT/CN2005/001553 CN2005001553W WO2007033527A1 WO 2007033527 A1 WO2007033527 A1 WO 2007033527A1 CN 2005001553 W CN2005001553 W CN 2005001553W WO 2007033527 A1 WO2007033527 A1 WO 2007033527A1
Authority
WO
WIPO (PCT)
Prior art keywords
rectifier
bridge
bridge rectifier
rectifier circuit
resistor
Prior art date
Application number
PCT/CN2005/001553
Other languages
English (en)
Chinese (zh)
Inventor
Qingbiao Wu
Original Assignee
Qingbiao Wu
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingbiao Wu filed Critical Qingbiao Wu
Priority to PCT/CN2005/001553 priority Critical patent/WO2007033527A1/fr
Publication of WO2007033527A1 publication Critical patent/WO2007033527A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/357—Driver circuits specially adapted for retrofit LED light sources
    • H05B45/3578—Emulating the electrical or functional characteristics of discharge lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the present invention relates to a light string, particularly a light string using a light emitting diode as a light source.
  • a light string such as the Chinese utility model "a decorative lantern for decoration" (patent number 03273878. 1)
  • its working circuit is shown in Figure 1, including a rectifier circuit and a light string, ⁇ rectifier circuit
  • the rectifier bridge is used, and the input end of the rectifier bridge is connected to the AC power source, and its string is connected in series by the 10-50 light-emitting diodes (LEDs) on the load circuit of the rectifier circuit.
  • LEDs light-emitting diodes
  • the general method is as shown in Figure 2.
  • the power cable is pulled from the output of the rectifier bridge and the cathode of the last LED of the previous string.
  • An electrical connector, the next string of strings is connected to the electrical connector via another electrical connector that is adapted to obtain power.
  • This type of light string is limited by the power of the rectifier bridge, and the number of strings that can be connected in series is also limited.
  • Another method is shown in Figure 3.
  • the power lines from the two AC input terminals of the rectifier bridge are respectively connected to the electrical connector to provide power for the next string of lights, and then the electrical connector is inserted into another suitable electrical connection.
  • the device draws AC power, connects to another rectifier bridge, and then accesses the next string of lights.
  • the light string is solved because the power supply of each string of lights is rectified by the respective rectifier bridges, which solves the problem that the number of strings is limited by the power of the rectifier bridge, but since the power of each string passes through the power line Introduced from the AC input end of the previous string, so that the length of the entire string is increased by one power line. Because the wire is more expensive, the string has a certain length. The addition of one wire greatly increases the length of the string. cost.
  • the four rectifiers are arranged in the form of a rectifier bridge to form a bridge rectifier circuit.
  • the output circuit of the bridge rectifier circuit consists of two rectifiers. The intersection of the negative terminal is led out, and the power line leads straight to the intersection of the positive ends of the other two rectifiers, and the LEDs are sequentially connected in series in the same polarity direction on the output circuit of the bridge rectifier circuit, as shown in FIG.
  • Multiple sets of LED lights can also be connected in parallel to the output loop of the bridge rectifier circuit.
  • the number of strings that can be connected to the string is not bridged.
  • the power limitation of the rectifier circuit such as ⁇ does not consider the line loss, can be freely cascaded without restriction.
  • the number of LEDs that can be connected in each string of light strings is small.
  • there is only one set of LED light groups if too many LEDs are connected in series, the LEDs may not work due to voltage drop;
  • multiple groups of LED lamps are connected in parallel, the current in each group will be too small due to current shunting.
  • each bridge needs a bridge rectifier circuit composed of four independent rectifier tubes, which has high cost.
  • a novel LED light string comprising a bridge rectifier circuit formed by four rectifier tubes arranged in the form of a rectifier bridge and connected to an output circuit of the bridge rectifier circuit LED lamp group, 'The above-mentioned bridge rectifier circuit and the above LED lamp group have at least two groups, and the two rectifier tubes or the two rectifier tubes intersecting the positive terminal at the negative terminal of the next bridge rectifier circuit and the previous bridge.
  • the two rectifier tubes intersecting at the positive terminal and the two rectifier tubes intersecting at the negative terminal form a bridge rectifier circuit; the polarity of the LED group on the output circuit of each adjacent two of the bridge rectifier circuits is opposite .
  • the positive ends of the two rectifier tubes of the first bridge rectifier circuit adjacent to the AC power source are connected, and the two rectifier tubes intersecting the positive terminal and the previous bridge rectifier are connected to the upper bridge rectifier circuit.
  • the two rectifiers intersecting the negative terminals of the circuit form a bridge rectifier circuit.
  • the bridge rectifier circuit is connected to the negative ends of the two rectifier tubes of the first bridge rectifier circuit adjacent to the AC power source, and the two rectifier tubes intersecting the positive terminal and the previous bridge rectifier circuit in the next bridge rectifier circuit
  • the two rectifier tubes intersecting the middle and negative terminals constitute one of the above-mentioned bridge rectifier circuits.
  • the two output ends of the above AC power source are respectively led to an electrical connector through a power line.
  • the above electrical connector is an electrical socket.
  • a resistor is connected in series at each end of each of the above-mentioned 'LED lamp groups.
  • a novel LED light string of the present invention can be provided with multiple sets of LED light groups in each string of light strings, and each of the LED light groups is respectively powered by a bridge rectifier bridge, and is required in a string of light strings.
  • each of the LED light groups is respectively powered by a bridge rectifier bridge, and is required in a string of light strings.
  • it can be realized by dividing the LED into several groups. If the line loss problem is not considered, it can be connected infinitely in series, which is especially suitable for the case of low AC voltage.
  • two adjacent bridge rectifier circuits can share two rectifier tubes, and the cost is low.
  • Figure 3 is a circuit schematic of the third item.
  • Figure 4 is a circuit schematic of the fourth item.
  • Figure 5 is a schematic diagram of the circuit of the fifth.
  • FIG. 6 is a schematic circuit diagram of a first embodiment of the present invention.
  • FIG. 7 is a schematic circuit diagram of a second embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a novel LED light string of the present invention is shown in FIG. 6 and includes rectifiers VD1, VD2, VD3, VD4, VD5, and VD6, resistors R1, R2, R3, and R4, and a plurality of light-emitting diodes D1.
  • LED lamp group 1 in which Dn is sequentially connected in the same polarity direction
  • LED lamp group 2 in which a plurality of light-emitting diodes Dn+1-Di are sequentially connected in the same polarity direction
  • electric socket P1 wherein One end of the AC power supply is respectively connected to the negative terminal of the rectifier VD1, the positive terminal of the VD3, and the negative terminal of the VD5, and the other end of the AC power supply is respectively connected to the negative terminal of the rectifier VD2, the positive terminal of the VD4, and the negative terminal of the VD6, the rectifier
  • the positive terminal of VD1 and the positive terminal of rectifier VD2 are connected to one end of resistor R1, the other end of resistor R1 is connected to the negative terminal of LED D1, and the negative terminal of rectifiers VD3 and YD4 are connected to one end of resistors R2 and R3.
  • R2 is connected to the positive terminal of the LED Dn
  • the other end of the resistor R3 is connected to the positive terminal of the LED Dn+1
  • the positive terminals of the rectifiers VD5 and VD6 are connected to the resistor R4.
  • the other end of the resistor R4 is connected to the negative terminal of a light emitting diode Dm is. Both ends of the AC power supply are connected to the two input terminals of the electrical outlet P1.
  • the alternating current is in the first positive half cycle
  • the output end of the alternating current is positive
  • the end b is negative
  • the rectifiers VD3, VD2, and VD6 are turned on, and the current is rectified from the output end of the alternating current.
  • the tube VD3, the resistor R2, the LED lamp group 1, the resistor R1, the rectifier tube VD2 and the output terminal b of the alternating current form a loop, and a half-wave rectified voltage is obtained on the loop of the resistor R2, the LED lamp group 1, and the resistor R1.
  • the output terminal a of the alternating current passes through the resistor R3, the rectifier VD3, the LED lamp group 2, the resistor R4, the rectifier VD6 and the output terminal b of the alternating current to form another circuit, also in the resistor R3, the LED lamp group 2, and the resistor R4.
  • a half-wave rectified voltage is obtained on the loop.
  • LED lamp group 1, resistor Rl, rectifier VD1 form a loop with the output end a of the alternating current, and another half-wave rectified voltage is obtained on the loop of the resistor R2, the LED lamp group 1, and the resistor R1; and the output terminal of the alternating current is b
  • the other end forms a further loop through the rectifier VD4, the resistor R3, the LED lamp group 2, the resistor R4, the rectifier VD5 and the output end a of the alternating current, and the other half is also obtained on the resistor R3, the LED lamp group 2, and the resistor R4 circuit.
  • Wave rectification voltage Repeatedly, it is divided into LED light group 1 and LED light group 2 Do not get full-wave pulsation double half-wave rectification voltage, LED light group 1, LED light group 1 will not flash when illuminated, prolonging its service life.
  • the rectifier tubes VD1, VD2, VD3, and VD4 form a bridge rectifier circuit
  • the rectifier tubes VD3, VD4, VD5, and VD6 form another bridge rectifier circuit
  • the LED light string is divided into two groups of LED lamp groups.
  • the two sets of LED groups are each powered by a bridge rectifier circuit, and more LEDs can be connected in one string of strings, and the two bridge rectifier circuits can share two rectifier tubes, and the cost is low.
  • a second embodiment of a novel LED light string of the present invention is shown in FIG. 7 and includes rectifiers VD1, VD2, VD3, VD4, VD5, VD6, VD7, VD8, VD9, VD10, resistors R1, R2, R3, R4, R5, R6, R7, R8, LED lamp group 1 which is formed by sequentially connecting a plurality of light-emitting diodes D1-Dn in the same polarity direction, and is connected in series by a plurality of light-emitting diodes Dn+1-Dra in the same polarity direction
  • the LED lamp group 2 which is composed of a plurality of light-emitting diodes Dm+1-Dx connected in series in the same polarity direction, is connected in series by the plurality of light-emitting diodes Dx-Dy in the same polarity direction.
  • one end of the alternating current power source is respectively connected to the negative end of the rectifier VD1, the positive end of the rectifier VD3, the negative end of the rectifier VD5, the positive end of the rectifier VD7, and the negative end of the rectifier VD9; the other ends of the AC power are respectively connected The negative terminal of the rectifier VD2, the positive terminal of the rectifier VD4, the negative terminal of the rectifier VD6, the positive terminal of the rectifier VD8, and the negative terminal of the rectifier VD10.
  • the positive terminal of the rectifier VD1 and the positive terminal of the rectifier VD2 are connected to one end of the resistor R1, the other end of the resistor R1 is connected to the negative terminal of the LED D1, and the negative terminal of the rectifiers VD3 and VD4 are connected to one end of the resistors R2 and R3.
  • the other end of the resistor R2 is connected to the positive end of the LED Dn, and the other end of the resistor R3 is connected to the positive end of the LED Dn+1.
  • the positive ends of the rectifiers VD5 and VD6 are connected to one end of the resistors R4 and R5, and the other end of the resistor R4.
  • One end is connected to the negative end of the LED Dm, and the other end of the resistor R5 is connected to the negative end of the LED Dm+1.
  • the negative ends of the rectifiers VD7 and VD8 are connected to one end of the resistors R6 and R7, the other end of the resistor R6 is connected to the positive terminal of the LED Dx, and the other end of the resistor R7 is connected to the positive terminal of the LED DX+1.
  • the positive ends of the rectifiers VD9 and VD10 are connected to one end of the resistor R8, and the other end of the resistor R8 is connected to the negative terminal of the LED Dy.
  • the alternating current is in the first positive half cycle
  • the output end of the alternating current is positive
  • the end b is negative
  • the rectifiers VD2, VD3, VD6, VD7, VD10 are turned on
  • the output end of the alternating current is a.
  • a half-wave rectified voltage is obtained on the loop of the resistor R2, the LED lamp group 1, and the resistor R1 through the rectifier VD3, the resistor R2, the LED lamp group 1, the resistor R1, the rectifier VD2, and the output terminal b of the alternating current.
  • the output end of the alternating current is formed through the rectifier VD3, the resistor R3, the LED lamp group 2, the resistor R4, the rectifier VD6 and the output terminal b of the alternating current to form another circuit, also in the resistor R3, the LED lamp group 2, the resistor A half-wave rectified voltage is obtained on the R4 loop.
  • the output end of the alternating current terminal ends through the rectifier tube VD7, the resistor R6, the LED lamp group 3, the resistor R5, the rectifier tube VD6 and the output end of the alternating current terminal b.
  • the half-wave rectified voltage is also obtained on the loop of the resistor R3, the LED lamp group 3 , and the resistor R4.
  • the output end of the alternating current is formed through the rectifier VD7, the resistor R7, the LED lamp group 4, the resistor R8, the rectifier VD1 O and the output terminal b of the alternating current to form another circuit, also in the resistor R7, the LED lamp group 4, A half-wave rectified voltage is obtained on the resistor R8 loop.
  • the output terminal of the alternating current is negative
  • the b terminal is positive
  • the rectifiers VD1, VD4, VD5, VD8, VD9 are turned on, and the current is rectified from the output terminal b of the alternating current.
  • the tube VD4, the resistor R2, the LED lamp group 1, the resistor R1, the rectifier tube VD1 form a loop with the output end a of the alternating current, and another half-wave rectified voltage is obtained on the loop of the resistor R2, the LED lamp group 1, and the resistor R1;
  • the output terminal b of the alternating current forms another circuit through the rectifier VD4, the resistor R3, the LED lamp group 2, the resistor R4, the rectifier VD5 and the output end of the alternating current, forming the other circuit, also in the resistor R3, the LED lamp group 2, and the resistor R4 circuit.
  • Another half-wave rectified voltage is obtained.
  • the output end b of the alternating current through the rectifier VD8, the resistor R6, the LED lamp set 3, the resistor R5, the rectifier VD5 and the output end of the alternating current terminal a form another circuit, also in the resistor R6, the LED lamp group 3, the resistor Another half-wave rectified voltage is obtained on the R5 loop.
  • the output terminal b of the alternating current through the rectifier VD8, the resistor R7, the LED lamp group 4, the resistor R8, the rectifier VD9 and the output end of the alternating current terminal a form another circuit, also in the resistor R7, the LED lamp group 4, the resistor Another half-wave rectified voltage is obtained on the R8 loop.
  • each string of strings can be provided with an infinite set of LED light groups, that is, which can be connected.
  • the number of LEDs is not limited.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne une guirlande à diodes électroluminescentes (DEL) qui comporte au moins deux circuits de redressement en pont composés chacun de quatre redresseurs disposés et reliés sous la forme d'un pont de redressement, et des ensembles DEL reliés au circuit de sortie de chaque circuit de redressement en pont, et les deux redresseurs dont les extrémités cathode ou anode se coupent dans un circuit de redressement en pont et les deux redresseurs dont les extrémités anode ou cathode se coupent dans le circuit de redressement en pont antérieur forment un circuit de redressement en pont; les polarités des ensembles DEL reliés aux circuits de sortie de chacun des deux circuits de redressement en pont contigus sont opposées les unes aux autres. Plusieurs ensembles DEL peuvent être disposés en guirlande lumineuse, et chaque ensemble DEL est activé par un circuit de redressement en pont respectivement, et les DEL peuvent être groupées en plusieurs ensembles lorsque l'on doit disposer un grand nombre de DEL en guirlande, notamment dans le cas de tension alternative basse. Deux redresseurs sont partagés par deux circuits de redressement en pont contigus, d'où un coût modique.
PCT/CN2005/001553 2005-09-23 2005-09-23 Guirlande a diodes electroluminescentes WO2007033527A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/001553 WO2007033527A1 (fr) 2005-09-23 2005-09-23 Guirlande a diodes electroluminescentes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/001553 WO2007033527A1 (fr) 2005-09-23 2005-09-23 Guirlande a diodes electroluminescentes

Publications (1)

Publication Number Publication Date
WO2007033527A1 true WO2007033527A1 (fr) 2007-03-29

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PCT/CN2005/001553 WO2007033527A1 (fr) 2005-09-23 2005-09-23 Guirlande a diodes electroluminescentes

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010080458A1 (fr) * 2008-12-19 2010-07-15 3M Innovative Properties Company Ensemble d'éclairage à del
CN102155637A (zh) * 2010-02-11 2011-08-17 亿光电子工业股份有限公司 发光二极管照明装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05198843A (ja) * 1992-01-23 1993-08-06 Toshiba Lighting & Technol Corp 発光ダイオードランプおよび発光ダイオード表示装置
CN2391095Y (zh) * 1999-09-15 2000-08-09 上海起鼎光电有限公司 Led灯泡
DE20100376U1 (de) * 2001-01-10 2001-05-17 RAK Leuchten GmbH, 56459 Guckheim Beleuchtungsvorrichtung
CN2516806Y (zh) * 2001-11-30 2002-10-16 上海威廉照明电气有限公司 一种带状发光二极管灯
DE20117209U1 (de) * 2001-10-19 2002-11-28 Poppe, Martin, Prof. Dr., 48565 Steinfurt Netzgerät für Leuchtdioden
CN2646548Y (zh) * 2003-04-27 2004-10-06 陈其芳 电子灯
CN2773468Y (zh) * 2005-02-25 2006-04-19 临海三英灯饰有限公司 一种新型的发光二极管灯串

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05198843A (ja) * 1992-01-23 1993-08-06 Toshiba Lighting & Technol Corp 発光ダイオードランプおよび発光ダイオード表示装置
CN2391095Y (zh) * 1999-09-15 2000-08-09 上海起鼎光电有限公司 Led灯泡
DE20100376U1 (de) * 2001-01-10 2001-05-17 RAK Leuchten GmbH, 56459 Guckheim Beleuchtungsvorrichtung
DE20117209U1 (de) * 2001-10-19 2002-11-28 Poppe, Martin, Prof. Dr., 48565 Steinfurt Netzgerät für Leuchtdioden
CN2516806Y (zh) * 2001-11-30 2002-10-16 上海威廉照明电气有限公司 一种带状发光二极管灯
CN2646548Y (zh) * 2003-04-27 2004-10-06 陈其芳 电子灯
CN2773468Y (zh) * 2005-02-25 2006-04-19 临海三英灯饰有限公司 一种新型的发光二极管灯串

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010080458A1 (fr) * 2008-12-19 2010-07-15 3M Innovative Properties Company Ensemble d'éclairage à del
CN102155637A (zh) * 2010-02-11 2011-08-17 亿光电子工业股份有限公司 发光二极管照明装置

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