WO2008128413A1 - Lampe à led à température de couleur ajustable - Google Patents

Lampe à led à température de couleur ajustable Download PDF

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Publication number
WO2008128413A1
WO2008128413A1 PCT/CN2008/000453 CN2008000453W WO2008128413A1 WO 2008128413 A1 WO2008128413 A1 WO 2008128413A1 CN 2008000453 W CN2008000453 W CN 2008000453W WO 2008128413 A1 WO2008128413 A1 WO 2008128413A1
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WO
WIPO (PCT)
Prior art keywords
led
lamp
light
leds
color temperature
Prior art date
Application number
PCT/CN2008/000453
Other languages
English (en)
French (fr)
Inventor
Ben Fan
Original Assignee
He Shan Lide Electronic Enterprise Company Ltd.
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 He Shan Lide Electronic Enterprise Company Ltd. filed Critical He Shan Lide Electronic Enterprise Company Ltd.
Publication of WO2008128413A1 publication Critical patent/WO2008128413A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
    • 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
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/18—Controlling the intensity of the light using temperature feedback
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • 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]

Definitions

  • the present invention is a color temperatureable LED lamp. Background technique
  • the light sources are mostly incandescent lamps. Although such a lamp can continuously adjust the brightness of the light, the color of the light is monotonous, and the incandescent lamp has low luminous efficiency, short life, and easy heat generation, which is prone to safety hazards. Therefore, there is a scheme of using LED as an illuminant, such as the LED table lamp dimming device of Chinese Patent Publication No. CN2794101Y, the control circuit thereof includes a single chip microcomputer, a plurality of switches and resistors, and a triode, etc., the circuit is extremely complicated, although the dimming effect Ok, but it is completely unnecessary for ordinary desk lamps. Its precise dimming device is not useful at all. It only increases the complexity of the operation and the production cost, resulting in no market value for this product. Summary of the invention
  • the present invention provides a color temperatureable LED lamp in view of the above technical problems, which has a simple circuit structure, convenient operation, low cost, and good market value.
  • a color temperatureable LED lamp which comprises a lamp cap and a lamp holder, a light source in the lamp cap, a control circuit and a power source in the lamp holder, and a lamp holder
  • the adjusting knob is characterized in that the light source is composed of at least two LED groups preset on an aluminum substrate, and the single LED group is composed of LEDs emitting light of the same color temperature, and the LEDs between different LED groups emit light of different color temperatures.
  • Each of the LED groups has a control circuit connected in series, the control circuit includes an adjustable resistor and a constant current source connected in series, the adjustable resistor is controlled by a regulated knob, and the single LED group is connected in parallel
  • the LED group has two LEDs, and the two groups of LEDs are LEDs that emit white light and LEDs that emit white light.
  • the invention adopts LED instead of the conventional incandescent lamp, realizes long life, high efficiency and low consumption of the light source; adjusts the working state of the LED by using the adjustable resistor and the constant current source, For the purpose of adjusting the color temperature, the circuit is simple and easy to implement, and the cost is low.
  • Figure 1 is a schematic view of the structure of the present invention
  • FIG. 2 is a schematic circuit diagram of the present invention.
  • the invention mainly comprises a lamp cap 1 and a lamp holder 2, a light source 3 is mounted in the lamp cap 1, a control circuit 6 and a power source 7 are arranged in the lamp holder 2, and an adjustment knob 5 is arranged on the lamp holder 2, as shown in Fig. 1. .
  • the light source 3 is composed of an LED group 4 preset on an aluminum substrate 31, wherein all the LEDs in a single LED group emit light of the same color temperature, and the LEDs between different LED groups emit light of different color temperatures.
  • the present invention exemplifies an embodiment in which only two LED groups are used, the LEDs in the first LED group 41 are all positively white, and the LEDs in the second LED group 42 are all warm white, the first The LED between the LED group 41 and the second LED group 42 emits light of different color temperatures, so that the light emitted by the two can be mixed to obtain light of different color temperatures.
  • multiple LED groups can be mixed to obtain more kinds of light mixing effects.
  • each LED group 4 has a control circuit 6 connected in series, and then all the LED groups 4 and their series control circuits 6 are connected in parallel to the power supply 7, the power supply 7 provides low voltage direct current, and the control circuit 6 It mainly includes an adjustable resistor 61 and a constant current source 62 connected in series, and each adjustable resistor 61 is controlled by the adjusting knob 5 to achieve the purpose of linkage adjustment.
  • the resistance of the adjustable resistor 61 is changed by turning the adjustment knob 5, and the resistance of the different adjustable resistors 61 is reversed when the adjustment is changed to change the voltage supplied to the constant current source 62 to change the output current.
  • a plurality of LED groups emitting different color temperatures emit light of different brightness, and after mixing, a plurality of light of different color temperatures can be obtained, so that the purpose of adjusting the color temperature of the present invention can be achieved.
  • the invention can be applied to table lamps, bedside lamps, wall lamps and the like, has a simple structure and low cost, and can be placed in all occasions where it is necessary to adjust the color temperature of the illumination light frequently.

Description

一种可调色温的 LED灯 技术领域
本发明是一种可调色温的 LED灯。 背景技术
现有可进行调节的灯具大都为室内使用的台灯， 其光源多采用白炽灯。 虽然此种 台灯可连续调节灯光的明暗， 但光线颜色单调， 而且白炽灯发光效率低、 寿命短、 易 发热， 容易产生安全隐患。 因此有一种采用 LED作为发光体的方案， 如中国专利公告 号为 CN2794101Y的 LED台灯调光装置， 其控制电路包括单片机、 多个开关和电阻以 及三极管等零部件， 电路极其复杂， 虽然调光效果好， 但针对普通台灯完全没有必要， 其精确的调光装置根本派不上用场， 只会增加操作的复杂程度和制作成本， 而导致该 产品没有市场价值。 发明内容
本发明有鉴于上述技术问题而提供一种可调色温的 LED灯， 它电路结构简单， 操 作方便， 成本低， 具有较好的市场价值。
为达到上述目的， 本发明采用了以下的技术方案： 一种可调色温的 LED灯， 它包 括灯头和灯座， 灯头内有光源， 灯座内有控制电路和电源， 灯座外设有调节旋扭， 其 特征在于所述光源由预置在铝基板上的至少二个 LED组构成， 单个 LED组由发相同 色温的光的 LED构成，不同 LED组之间的 LED发出不同色温的光，所述每个 LED组 都串联有一个控制电路， 所述控制电路包括串联在一起的可调电阻及恒流源， 所述可 调电阻受调节旋扭控制， 所述单个 LED组之间并联联接， 所述 LED组有二个， 所述 两组 LED分别为发正白光的 LED和发暖白光的 LED。
与背景技术里所提到的方案相比， 本发明采用 LED代替常规的白炽灯， 实现了光 源的长寿命、 高功效和低消耗； 采用可调电阻与恒流源调节 LED的工作状态， 达到调 节色温的目的， 其电路简单易实施， 成本低。
附图说明
图 1是本发明的结构示意图；
图 2是本发明的电路示意图。
-1- 确认本 具体实施方式
本发明主要包括灯头 1和灯座 2， 灯头 1内安装有光源 3， 灯座 2内设置有控制 电路 6和电源 7， 在灯座 2上设有调节旋扭 5， 如照图 1所示。 光源 3是由预置在铝基 板 31上的 LED组 4构成的， 其中单个 LED组内的所有 LED都是发相同色温的光， 而不同的 LED组之间的 LED则发不同色温的光。 本发明在此列举一个实施例， 即只 有二个 LED组的方案， 第一个 LED组 41内的 LED全都发正白光， 而第二个 LED组 42内的 LED全都发暖白光， 第一个 LED组 41与第二个 LED组 42之间的 LED则是 发不同色温的光， 这样才能将两者所发的光进行混光， 而最终得到不同色温的光。 事 实上可以有多个 LED组进行混光而得到更多种的混光效果。
如图 2中所示， 每一个 LED组 4都串联有一个控制电路 6， 然后全部的 LED组 4 及其串联的控制电路 6再并联接到电源 7上， 电源 7提供低压直流电， 控制电路 6主 要包括串联在一起的可调电阻 61和恒流源 62， 而每个可调电阻 61都受到调节旋扭 5 的控制， 达到联动调节的目的。通过拧动调节旋扭 5来改变可调电阻 61的阻值， 不同 的可调电阻 61被调节时其阻值变化趋势相反， 以改变提供给恒流源 62的电压， 使其 改变输出电流， 来改变 LED组 4的亮度。 多个发不同色温的 LED组发出亮度不同的 光， 进行混光后可以得出多种不同色温的光， 这样就能达到本发明调节色温的目的。
本发明可适用于台灯、 床头灯、 壁灯等地方， 其结构简单， 成本低， 可安置于所 有需要经常进行调节照明光线的色温的场合。

Claims

、 一种可调色温的 LED灯， 它包括灯头和灯座， 灯头内有光源， 灯座内有控制电路 和电源， 灯座上设有调节旋扭， 其特征在于： 所述光源由预置在铝基板上的至少二 个 LED组构成， 单个 LED组由发相同色温的光的 LED构成， 不同 LED组之间的 LED发出不同色温的光， 所述每个 LED组都串联有一个控制电路， 所述控制电路 包括串联在一起的可调电阻及恒流源， 所述可调电阻受调节旋扭控制。 、 根据权利要求 1所述的 LED灯， 其特征在于： 所述单个 LED组之间并联联接。 、 根据权利要求 2所述的 LED灯， 其特征在于： 所述 LED组有二个。 、 根据权利要求 5所述的 LED灯， 其特征在于： 所述两组 LED分别为发正白光的 LED和发暖白光的 LED。
PCT/CN2008/000453 2007-04-24 2008-03-07 Lampe à led à température de couleur ajustable WO2008128413A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007200507736U CN201045454Y (zh) 2007-04-24 2007-04-24 一种可调色温的led灯
CN200720050773.6 2007-04-24

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WO2008128413A1 true WO2008128413A1 (fr) 2008-10-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2408265A3 (en) * 2010-07-13 2013-04-24 Foxsemicon Integrated Technology, Inc. Vehicle headlamp system
DE102013111510A1 (de) * 2013-10-18 2015-04-23 Hella Kgaa Hueck & Co. Schaltung und Verfahren zur Ansteuerung von LEDs
EP3200564A4 (en) * 2014-09-26 2018-05-02 Sharp Kabushiki Kaisha Lighting device

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644420B (zh) * 2008-08-04 2012-06-27 昆达电脑科技(昆山)有限公司 发光二极管亮度平衡电路
CN102072452A (zh) * 2009-11-19 2011-05-25 富准精密工业(深圳)有限公司 发光二极管灯具
CN101801141B (zh) * 2010-03-25 2013-06-26 东华大学 冷白加红黄绿led组合获得高显色可调色温白光的方法
CN101801140B (zh) * 2010-03-25 2013-06-26 东华大学 白光加红绿蓝led组合获得高显色可调色温白光的方法
CN101986010A (zh) * 2010-11-02 2011-03-16 黄勇斌 一种能够实现色温精确设置的led灯及其设置方法
US9357614B2 (en) 2010-12-24 2016-05-31 Koninklijke Philips N.V. Illumination apparatus
CN103299713B (zh) * 2010-12-24 2016-08-24 皇家飞利浦电子股份有限公司 一种照明设备
EP3761759A1 (en) * 2012-03-19 2021-01-06 Signify Holding B.V. Apparatus, systems and methods for a multichannel white light illumination source
CN104747940B (zh) * 2015-03-23 2018-12-07 安徽兆利光电科技有限公司 一种带有亮度调节装置的led灯
CN104990032A (zh) * 2015-07-28 2015-10-21 江苏达伦电子股份有限公司 一种多色温led灯
CN105221949B (zh) * 2015-10-29 2018-08-31 横店集团得邦照明股份有限公司 可调光色led灯具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2504485Y (zh) * 2001-09-03 2002-08-07 葛世潮 发光二极管台灯
EP1487243A1 (en) * 2003-06-06 2004-12-15 Teknoware Oy Controlling colour temperature of lighting fixture
CN1571610A (zh) * 2003-02-06 2005-01-26 电灯专利信托有限公司 有可调节颜色和亮度的照明装置的电路结构和方法
CN1575081A (zh) * 2003-06-09 2005-02-02 株式会社茉莉特斯 照明装置
CN2695775Y (zh) * 2004-05-14 2005-04-27 葛世潮 色温和亮度可调的发光二极管台灯
WO2006062047A1 (en) * 2004-12-10 2006-06-15 Matsushita Electric Industrial Co., Ltd. Illumination source, illumination system, and dimming control method for the production of different colour temperatures
CN2817285Y (zh) * 2005-08-17 2006-09-13 李维强 Led全彩显示灯

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2504485Y (zh) * 2001-09-03 2002-08-07 葛世潮 发光二极管台灯
CN1571610A (zh) * 2003-02-06 2005-01-26 电灯专利信托有限公司 有可调节颜色和亮度的照明装置的电路结构和方法
EP1487243A1 (en) * 2003-06-06 2004-12-15 Teknoware Oy Controlling colour temperature of lighting fixture
CN1575081A (zh) * 2003-06-09 2005-02-02 株式会社茉莉特斯 照明装置
CN2695775Y (zh) * 2004-05-14 2005-04-27 葛世潮 色温和亮度可调的发光二极管台灯
WO2006062047A1 (en) * 2004-12-10 2006-06-15 Matsushita Electric Industrial Co., Ltd. Illumination source, illumination system, and dimming control method for the production of different colour temperatures
CN2817285Y (zh) * 2005-08-17 2006-09-13 李维强 Led全彩显示灯

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2408265A3 (en) * 2010-07-13 2013-04-24 Foxsemicon Integrated Technology, Inc. Vehicle headlamp system
DE102013111510A1 (de) * 2013-10-18 2015-04-23 Hella Kgaa Hueck & Co. Schaltung und Verfahren zur Ansteuerung von LEDs
EP3200564A4 (en) * 2014-09-26 2018-05-02 Sharp Kabushiki Kaisha Lighting device

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