WO2020037784A1 - 高压防浪涌无频闪灯带 - Google Patents

高压防浪涌无频闪灯带 Download PDF

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Publication number
WO2020037784A1
WO2020037784A1 PCT/CN2018/108603 CN2018108603W WO2020037784A1 WO 2020037784 A1 WO2020037784 A1 WO 2020037784A1 CN 2018108603 W CN2018108603 W CN 2018108603W WO 2020037784 A1 WO2020037784 A1 WO 2020037784A1
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pin
rectifier bridge
strobe
voltage
electrolytic capacitor
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PCT/CN2018/108603
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English (en)
French (fr)
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黄水华
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深圳市国盈光电有限公司
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Publication of WO2020037784A1 publication Critical patent/WO2020037784A1/zh

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    • 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
    • H05B45/37—Converter circuits
    • 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]

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  • the invention relates to a lamp belt, in particular to a high-voltage anti-surge non-strobe lamp belt.
  • the present invention provides a high-voltage anti-surge anti-strobe light strip.
  • the invention provides a high-voltage anti-surge non-strobe light strip, which includes a mains fuse F1, a rectifier bridge DB1 that rectifies AC power to DC power, a varistor RV1, a lamp bead, a constant current chip U1, and a filtering electrolytic capacitor C1.
  • the bleeder resistor R1 wherein the pin 3 of the rectifier bridge DB1 is connected to the neutral line of the AC power, the pin 1 of the rectifier bridge DB1 is connected to the mains fuse F1 and then connected to the AC power line, and one end of the varistor RV1 is connected to all
  • the rectifier bridge DB1 pin 2 is connected, the other end of the varistor RV1 is connected to the rectifier bridge DB1 pin 4, the rectifier bridge DB1 pin 2 is connected to the anode of the lamp bead,
  • the cathode of the lamp bead is connected to pin 1 of the constant current chip U1
  • the pin 4 of the rectifier bridge DB1 is connected to pin 2 of the constant current chip U1
  • the positive electrode of the filter electrolytic capacitor C1 is connected to The pin 2 of the rectifier bridge, the negative electrode of the filter electrolytic capacitor is connected to the pin 4 of the rectifier bridge, and the bleeder resistor R1 is connected in parallel with the filter electrolytic capacitor.
  • the high-voltage surge-proof stroboscopic lamp strip further includes a current-limiting resistor R, at least two of the lamp beads are arranged in series, and the current-limiting resistor R is connected to two of the lamps. Between the beads.
  • the total voltage Uled of the lamp beads arranged in series is between 0.8 and 1.4 times the AC input voltage Uac.
  • the total voltage Uled of the lamp beads arranged in series is equal to 1.2 times the AC input voltage Uac.
  • the current range of the filtering electrolytic capacitor C1 is set to a fixed current value.
  • the filtering electrolytic capacitor C1 is a high-voltage and low-frequency filtering electrolytic capacitor.
  • the high-voltage surge-proof stroboscopic lamp strip further includes an FPC soft board, the rectifier bridge DB1, a varistor RV1, a lamp bead, a constant current chip U1, a filtering electrolytic capacitor C1, and a bleed
  • the resistor R1 is integrated on the FPC soft board.
  • the beneficial effect of the present invention is that through the above scheme, on the one hand, through the non-linear characteristics of the varistor RV1, when an overvoltage occurs between the two poles of the varistor, the varistor RV1 can clamp the voltage to a relatively fixed The voltage value, so as to achieve protection of the subsequent stage circuit, to prevent the surge effect;
  • the filter electrolytic capacitor C1 charge and discharge function to reduce the DC direct current peak current, valley current is increased, so as to achieve through the LED
  • the current has a stable effect, increasing the working time of the LED, and achieving the effect of low-frequency flicker, or even no flicker.
  • FIG. 1 is a circuit diagram of a high-voltage anti-surge anti-strobe light strip according to the present invention.
  • a high-voltage surge-proof strobe-free lamp strip includes a mains fuse F1, a rectifier bridge DB1 that rectifies AC power to DC power, a varistor RV1, a lamp bead, a constant current chip U1, and a filtering electrolytic capacitor.
  • a bleeder resistor R1 wherein pin 3 of the rectifier bridge DB1 is connected to the neutral AC line, pin 1 of the rectifier bridge DB1 is connected to the mains fuse F1 and then connected to the AC live line, and one end of the varistor RV1 Is connected to the rectifier bridge DB1 pin 2 and the other end of the varistor RV1 is connected to the rectifier bridge DB1 pin 4; the rectifier bridge DB1 pin 2 is connected to the anode of the lamp bead
  • the cathode of the lamp bead is connected to pin 1 of the constant current chip U1, the pin 4 of the rectifier bridge DB1 is connected to pin 2 of the constant current chip U1, and the positive electrode of the filter electrolytic capacitor C1 Connected to pin 2 of the rectifier bridge, the negative electrode of the filter electrolytic capacitor is connected to pin 4 of the rectifier bridge, and the bleeder resistor R1 is connected in parallel with the filter electrolytic capacitor.
  • the high-voltage surge-proof stroboscopic lamp strip further includes a current limiting resistor R, and at least two lamp beads are arranged in series.
  • the present invention preferably provides n lamp beads in series, which are lamps respectively. Beads D1, D2, ..., Dn-1, Dn, and the current limiting resistor R is connected between any two of the lamp beads.
  • the filtering electrolytic capacitor C1 is a high-voltage and low-frequency filtering electrolytic capacitor.
  • the high-voltage surge-proof strobe-free strip also includes an FPC soft board, the rectifier bridge DB1, a varistor RV1, a lamp bead, a constant current chip U1, a filtering electrolytic capacitor C1, and a bleeder resistor.
  • R1 is integrated on the FPC soft board.
  • the invention provides a high-voltage anti-surge non-strobe light strip.
  • the back of the FPC flexible board is used as a wire, that is, ACL / N.
  • the main circuit fuse F1 is connected in series to the branch circuit.
  • Each main circuit is composed of 1 circuit.
  • Complete circuit structure, AC / L, AC / N can be directly connected to the neutral line and hot line of the mains to light up each branch and achieve the effect of no strobe, the strobe index can reach less than 5% Effect, effectively protect the human eye and improve work efficiency.
  • the rectifier bridge DB1 rectifies the AC alternating current into DC direct current; D1 ... Dn are LED lamp beads, and the total Uled voltage is controlled between 0.8 and 1.4 times the Uac AC input voltage in series.
  • Uled 1.2Uac;
  • U1 is a high-voltage linear constant-current IC with overheating protection, 450V withstand voltage, and current range 5-60mA, which is set to a fixed current value through the IC;
  • C1 is high-voltage low-frequency filtering
  • Electrolytic capacitors with a withstand voltage of 200 / 400V The capacity of the electrolytic capacitors depends on the power of each small branch. Generally, the capacity is set according to 1: 1.
  • the varistor RV1 shows a high resistance state under normal operating voltage.
  • the internal resistance of the varistor RV1 decreases when there is an instant high voltage, so that the instantaneous current flows through the varistor RV1 to protect other resistance components; it forms a high-voltage anti-surge non-strobe light strip solution.
  • the invention provides a high-voltage anti-surge non-strobe light strip, which can be directly connected to the city power.
  • a rectifier bridge DB1, a varistor RV1, a filter electrolytic capacitor C1, a rectifier bridge DB1, and a filter electrolytic capacitor C1 are added.
  • the high-voltage strobe-free strip takes each small unit as a complete body, and it is OK when it is connected to the mains through a US plug or 2 with bare wires. It solves the problems that ordinary high-voltage light strips need external drive power, filter electrolytic capacitors, and different orientations during installation, which facilitates fast installation.
  • the varistor RV1 can clamp the voltage to a relatively fixed voltage value, thereby achieving protection for the subsequent circuit. , To prevent the effects of surge;

Abstract

一种高压防浪涌无频闪灯带，包括干路保险丝（F1）、将交流电整流成直流电的整流桥（DB1）、压敏电阻（RV1）、灯珠（D1、D2、……Dn-1、Dn）、恒流芯片（U1）、滤波电解电容（C1）、泄放电阻（R1），其中，整流桥（DB1）的引脚（3）接交流电零线（ACN），整流桥（DB1）的引脚（1）接干路保险丝（F1）后再接交流电火线（ACL），压敏电阻（RV1）一端与整流桥（DB1）引脚（2）相接，压敏电阻（RV1）的另外一端与整流桥（DB1）引脚（4）相接，整流桥（DB1）的引脚（2）与灯珠（D1）的阳极相接，灯珠（Dn）的阴极接恒流芯片（U1）的引脚（1）。

Description

高压防浪涌无频闪灯带 技术领域
本发明涉及灯带，尤其涉及一种高压防浪涌无频闪灯带。
背景技术
传统灯带容易出现电压不稳定和频闪问题，频闪指数较高，因此，如何防浪涌并且降低灯带的频闪指数是本领域技术人员所亟待解决的技术问题。
发明内容
为了解决现有技术中的问题，本发明提供了一种高压防浪涌无频闪灯带。
本发明提供了一种高压防浪涌无频闪灯带，包括干路保险丝F1、将交流电整流成直流电的整流桥DB1、压敏电阻RV1、灯珠、恒流芯片U1、滤波电解电容C1、泄放电阻R1，其中，所述整流桥DB1的引脚3接交流电零线，所述整流桥DB1的引脚1接干路保险丝F1后再接交流电火线，所述压敏电阻RV1一端与所述整流桥DB1引脚2相接、所述压敏电阻RV1的另外一端与所述整流桥DB1引脚4相接，所述整流桥DB1的引脚2与所述灯珠的阳极相接，所述灯珠的阴极接所述恒流芯片U1的引脚1，所述整流桥DB1的引脚4接于所述恒流芯片U1的引脚2，所述滤波电解电容C1的正极接所述整流桥的引脚2，所述滤波电解电容的负极接所述整流桥的引脚4，所述泄放电阻R1与所述滤波电解电容并联相接。
作为本发明的进一步改进，所述高压防浪涌无频闪灯带还包括限流电阻R，所述灯珠至少有二个并串联设置，所述限流电阻R接在二个所述灯珠之间。
作为本发明的进一步改进，串联设置的所述灯珠的总电压Uled介于交流输入电压Uac的0.8到1.4倍之间。
作为本发明的进一步改进，串联设置的所述灯珠的总电压Uled等于交流输入电压Uac的1.2倍。
作为本发明的进一步改进，所述滤波电解电容C1的电流范围设置为一个固定电流值。
作为本发明的进一步改进，所述滤波电解电容C1为高压低频滤波电解电容。
作为本发明的进一步改进，所述高压防浪涌无频闪灯带还包括FPC软 板，所述整流桥DB1、压敏电阻RV1、灯珠、恒流芯片U1、滤波电解电容C1、泄放电阻R1集成在所述FPC软板上。
本发明的有益效果是：通过上述方案，一方面，通过压敏电阻RV1的非线性特性，当过电压出现在压敏电阻的两极间，压敏电阻RV1可以将电压钳位到一个相对固定的电压值，从而实现对后级电路的保护，起到防浪涌的效果；另一方面，通过滤波电解电容C1充放电功能将DC直流电的峰值电流降低、谷底电流提高，从而实现流过LED的电流具有稳定的效果，增加LED的工作时间，达到低频闪、甚至无频闪的效果。
附图说明
图1是本发明一种高压防浪涌无频闪灯带的电路图。
具体实施方式
下面结合附图说明及具体实施方式对本发明作进一步说明。
如图1所示，一种高压防浪涌无频闪灯带，包括干路保险丝F1、将交流电整流成直流电的整流桥DB1、压敏电阻RV1、灯珠、恒流芯片U1、滤波电解电容C1、泄放电阻R1，其中，所述整流桥DB1的引脚3接交流电零线，所述整流桥DB1的引脚1接干路保险丝F1后再接交流电火线，所述压敏电阻RV1一端与所述整流桥DB1引脚2相接、所述压敏电阻RV1的另外一端与所述整流桥DB1引脚4相接，所述整流桥DB1的引脚2与所述灯珠的阳极相接，所述灯珠的阴极接所述恒流芯片U1的引脚1，所述整流桥DB1的引脚4接于所述恒流芯片U1的引脚2，所述滤波电解电容C1的正极接所述整流桥的引脚2，所述滤波电解电容的负极接所述整流桥的引脚4，所述泄放电阻R1与所述滤波电解电容并联相接。
如图1所示，所述高压防浪涌无频闪灯带还包括限流电阻R，所述灯珠至少有二个并串联设置，本发明优选设置n个串联的灯珠，分别为灯珠D1、D2、……、Dn-1、Dn，所述限流电阻R接在任意二个所述灯珠之间。
如图1所示，所述滤波电解电容C1为高压低频滤波电解电容。
如图1所示，所述高压防浪涌无频闪灯带还包括FPC软板，所述整流桥DB1、压敏电阻RV1、灯珠、恒流芯片U1、滤波电解电容C1、泄放电阻R1集成在所述FPC软板上。
本发明提供的一种高压防浪涌无频闪灯带，利用FPC软板背面做导线即ACL/N,干路保险丝F1串联在支路火线上，每个干路由图示1电路所组成一个完整的电路结构，可实现AC/L,AC/N直接接入市电的零线、火线的情况下点亮每一节支路并达到无频闪的效果，频闪指数可以达到小于5％的 效果，有效的保护人眼，提高工作效率。
如图1所示，整流桥DB1将AC交流电整流成DC的直流电；D1...Dn为LED灯珠，通过串联的方式将Uled总电压控制在Uac交流输入电压的0.8到1.4倍之间，当Uled＝1.2Uac时效果达到最优；U1为高压线性恒流IC，具有过热保护功能，耐压450V，电流范围5-60mA，通过IC内部设置为一个固定的电流值；C1为高压低频滤波电解电容，耐压200/400V，其电解电容的容量根据每个小支路功率大小而定，一般按照1:1设定容量；压敏电阻RV1在正常工作电压下呈现高阻状态，当市电出现瞬间高压时压敏电阻RV1内阻减小，使瞬间电流从压敏电阻RV1中流过，达到保护其他电阻元器件的作用；组成一个高压防浪涌无频闪灯带方案。
本发明提供的一种高压防浪涌无频闪灯带，可以直接接市电，在直流部分增加通过整流桥DB1，压敏电阻RV1，滤波电解电容C1，将整流桥DB1、滤波电解电容C1内置在每一个小单元里面使高压无频闪灯带以每一个小单元为一个完整的主体，通过美规插头或2跟裸线与市电相接即OK。解决了普通的高压灯带需要外接驱动电源、滤波电解电容、安装需要区分方向的问题，实现了方便快速安装。
本发明新型提供的一种高压防浪涌无频闪灯带，具有以下优点：
1、通过恒流芯片U1来控制LED所流过的电流，当电压升高时会把多余的电压施加到恒流芯片U1的1脚与2脚之间达到相对的线性恒流，避免流过LED的电流瞬间增大烧毁LED，提高LED工作稳定性；
2、通过压敏电阻RV1的非线性特性，当过电压出现在压敏电阻RV1的两极间，压敏电阻RV1可以将电压钳位到一个相对固定的电压值，从而实现对后级电路的保护，起到防浪涌的效果；
3、通过滤波电解电容C1充放电功能将DC直流电的峰值电流降低、谷底电流提高，从而实现流过LED的电流具有稳定的效果，增加LED的工作时间，达到无频闪的效果，频闪指数在5％以下；
4、将整流桥DB1、LED灯珠、滤波电解电容C1、恒流芯片U1、电阻元器件集成在FPC板子上面，可直接与市电相接，不用通过外部整流桥、电源等转换成直流电，实现方便快速的安装；可以在任意一小段的位置剪切后与市电相接并正常工作使用，背面做虚拟金属导线从而使高压灯带去导线化实现高效快速的全自动化生产的DOB方案。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术 领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (7)

  1. 一种高压防浪涌无频闪灯带，其特征在于：包括干路保险丝F1、将交流电整流成直流电的整流桥DB1、压敏电阻RV1、灯珠、恒流芯片U1、滤波电解电容C1、泄放电阻R1，其中，所述整流桥DB1的引脚3接交流电零线，所述整流桥DB1的引脚1接干路保险丝F1后再接交流电火线，所述压敏电阻RV1一端与所述整流桥DB1引脚2相接、所述压敏电阻RV1的另外一端与所述整流桥DB1引脚4相接，所述整流桥DB1的引脚2与所述灯珠的阳极相接，所述灯珠的阴极接所述恒流芯片U1的引脚1，所述整流桥DB1的引脚4接于所述恒流芯片U1的引脚2，所述滤波电解电容C1的正极接所述整流桥的引脚2，所述滤波电解电容的负极接所述整流桥的引脚4，所述泄放电阻R1与所述滤波电解电容并联相接。
  2. 根据权利要求1所述的高压防浪涌无频闪灯带，其特征在于：所述高压防浪涌无频闪灯带还包括限流电阻R，所述灯珠至少有二个并串联设置，所述限流电阻R接在二个所述灯珠之间。
  3. 根据权利要求2所述的高压防浪涌无频闪灯带，其特征在于：串联设置的所述灯珠的总电压Uled介于交流输入电压Uac的0.8到1.4倍之间。
  4. 根据权利要求3所述的高压防浪涌无频闪灯带，其特征在于：串联设置的所述灯珠的总电压Uled等于交流输入电压Uac的1.2倍。
  5. 根据权利要求1所述的高压防浪涌无频闪灯带，其特征在于：所述滤波电解电容C1的电流范围设置为一个固定电流值。
  6. 根据权利要求1所述的高压防浪涌无频闪灯带，其特征在于：所述滤波电解电容C1为高压低频滤波电解电容。
  7. 根据权利要求1所述的高压防浪涌无频闪灯带，其特征在于：所述高压防浪涌无频闪灯带还包括FPC软板，所述整流桥DB1、压敏电阻RV1、灯珠、恒流芯片U1、滤波电解电容C1、泄放电阻R1集成在所述FPC软板上。
PCT/CN2018/108603 2018-08-23 2018-09-29 高压防浪涌无频闪灯带 WO2020037784A1 (zh)

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CN110891348A (zh) * 2019-10-18 2020-03-17 深圳市国盈光电有限公司 高压高功率因数无频闪灯带
CN113531420B (zh) * 2021-06-28 2023-05-02 中山市松普电器照明有限公司 一种带整流桥的柔性led灯带

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262699A (en) * 1991-08-26 1993-11-16 Gte Products Corporation Starting and operating circuit for arc discharge lamp
CN201541369U (zh) * 2009-11-06 2010-08-04 林文献 5-100只led串联驱动器
CN201674689U (zh) * 2010-03-26 2010-12-15 深圳市诺雅诺德电子有限公司 电源电路
CN204697354U (zh) * 2015-06-23 2015-10-07 成都亿信标准认证集团有限公司 抗浪涌led电源电路
CN104968101A (zh) * 2015-06-23 2015-10-07 成都亿信标准认证集团有限公司 防雷led电源保护电路
CN205029911U (zh) * 2015-07-28 2016-02-10 石家庄鸿彩霓虹广告制作有限公司 一种高压恒流驱动的led广告灯串控制电路
US9706613B2 (en) * 2010-03-03 2017-07-11 Emeray Llc LED driver operating from unfiltered mains on a half-cycle by half-cycle basis
CN207678036U (zh) * 2017-10-24 2018-07-31 杭州鸿雁东贝光电科技有限公司 一种集成型led可感应调光一体化三防灯

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204498413U (zh) * 2015-01-26 2015-07-22 熙正照明有限公司 一种4瓦led球泡灯的驱动电源
CN207678054U (zh) * 2018-01-11 2018-07-31 深圳市圣心照明科技有限公司 集成电源的led灯板

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262699A (en) * 1991-08-26 1993-11-16 Gte Products Corporation Starting and operating circuit for arc discharge lamp
CN201541369U (zh) * 2009-11-06 2010-08-04 林文献 5-100只led串联驱动器
US9706613B2 (en) * 2010-03-03 2017-07-11 Emeray Llc LED driver operating from unfiltered mains on a half-cycle by half-cycle basis
CN201674689U (zh) * 2010-03-26 2010-12-15 深圳市诺雅诺德电子有限公司 电源电路
CN204697354U (zh) * 2015-06-23 2015-10-07 成都亿信标准认证集团有限公司 抗浪涌led电源电路
CN104968101A (zh) * 2015-06-23 2015-10-07 成都亿信标准认证集团有限公司 防雷led电源保护电路
CN205029911U (zh) * 2015-07-28 2016-02-10 石家庄鸿彩霓虹广告制作有限公司 一种高压恒流驱动的led广告灯串控制电路
CN207678036U (zh) * 2017-10-24 2018-07-31 杭州鸿雁东贝光电科技有限公司 一种集成型led可感应调光一体化三防灯

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