WO2009070949A1 - High-power illuminating light source unit integrating with a heat radiator - Google Patents

High-power illuminating light source unit integrating with a heat radiator Download PDF

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Publication number
WO2009070949A1
WO2009070949A1 PCT/CN2008/000525 CN2008000525W WO2009070949A1 WO 2009070949 A1 WO2009070949 A1 WO 2009070949A1 CN 2008000525 W CN2008000525 W CN 2008000525W WO 2009070949 A1 WO2009070949 A1 WO 2009070949A1
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WIPO (PCT)
Prior art keywords
heat sink
light source
source unit
power led
heat radiator
Prior art date
Application number
PCT/CN2008/000525
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English (en)
French (fr)
Inventor
Bishou Chen
Shikang Zhou
Xin Cheng
Bin Zhang
Original Assignee
Shanghai Sansi Electronics Engineering Co., Ltd.
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Publication date
Application filed by Shanghai Sansi Electronics Engineering Co., Ltd. filed Critical Shanghai Sansi Electronics Engineering Co., Ltd.
Publication of WO2009070949A1 publication Critical patent/WO2009070949A1/zh

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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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
    • 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
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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 invention relates to a light source structure of an LED lighting fixture, in particular to a high-power LED illumination light source unit which can be arbitrarily combined into a light source of different specifications and is integrated with a heat sink.
  • Chinese Patent Application No. 2004100519359 discloses "an LED combination luminaire" which comprises a light source part comprising two or more illuminating modules, which are combined into a luminaire in various forms by an LED light source module.
  • Chinese Patent Application No. 2007200035576 "A kind of LED sheet and its composed LED lamp wick” patent, LEDs mounted on rectangular printed circuit boards with multiple LEDs, can be arbitrarily assembled into any polygonal LED Wick. These two patents have improved the above-mentioned direct welding of multiple LEDs into an integrated light source.
  • the overall light source of the luminaire is combined by a small light-emitting module or LED sheet, so they are all simple. The production process and the benefits of reducing the production and maintenance costs of LED lamps.
  • the object of the present invention is to provide an improved light source structure, which can make each high-power LED together with the heat sink integrated therewith.
  • the light source unit can be freely assembled and connected with the matching lamp, and the LED light source unit can arbitrarily constitute the required light source module or the overall light source of the lamp.
  • a high-power LED illumination light source unit integrated with a heat sink comprising a heat sink and a high-power LED fixed on the diffuser, and one or more high-power LEDs are mounted on the central mounting platform of the heat sink main end face, and the circuit is The connection leads to the positive and negative poles.
  • a light source connector that connects the LEDs to the positive and negative terminals and can be connected to the matching lamp interface, and is mounted on the heat sink body near the LED.
  • a plurality of through holes penetrating through the ends are formed along the axis of the heat sink.
  • a special heat dissipation structure can be set, and the rest of the heat can be cooled by the secondary heat dissipation structure provided by the lamp, thereby achieving two heat dissipation effects, so that the heat dissipation efficiency is improved, which is very beneficial for extending the service life of the illumination LED.
  • the high-power LED illumination light source unit integrated with the heat sink of the invention can be as small as one high-power LED, or only a few high-power LEDs, so that the LED light source components can be completely modularized, and the LED light source components can be separated.
  • the lamps are made separately, which facilitates the large-scale production of the lamp source.
  • Figure 1 is a schematic perspective view of the present invention.
  • the high-power LED illumination light source unit integrated with the heat sink of the present invention comprises a cylindrical aluminum heat sink 4 with sixteen heat dissipation fins on the center of the radiator main body end mounting platform 3 .
  • a high-power LED1 is installed, and the positive and negative poles are connected by a circuit connection.
  • the externally threaded light source connector 5 has six through-holes 2 extending through the ends of the heat sink 4 in the axial direction of the heat sink 4.
  • the LED lighting fixture of the invention solves the problem, realizes the modularization of the high-power LED light source component, has the LED heat dissipation more efficient, facilitates the large-scale production of the lamp light source, and is convenient to install and maintain the lamp light source and save cost. And advantages.
  • the present invention is not limited to the above specific embodiments, and any similar high power LED illumination source unit is within the scope of the present invention, regardless of any changes in structure and shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

与散热器一体的大功率 LED照明光源单元 技术领域
本发明涉及 LED照明灯具的光源结构， 特别涉及一种可任意组合成 不同规格 LED灯具光源的、 与散热器一体的大功率 LED照明光源单元。 背景技术
在 LED未进入照明领域以前， 人们根据各种发光原理研制了各种规 格的传统光源， 如不同功率的白炽灯泡、 荧光灯管、 节能灯泡或钠灯等。 这些光源产品的特点是非组合式的， 即无论是 3W节能灯， 还是 1000W 的 "小太阳"， 都是一个独立发光体， 它并不是由多个低瓦数的独立发光 体组合而成的。
但自 LED进入照明领域后，上述照明光源结构出现了变异。由于 LED 目前的发光效率偏低， 往往需要多个 LED组合在一起才能达到传统照明 所要求的最低亮度。 所以用 7个大功率 LED组合为台灯灯具光源， 用 48 个大功率 LED组合为隧道照明灯具光源是很普通的应用实例。 在此类灯 具中往往将这 7个或 48个大功率 LED做在一块基板上，进行悍接连接固 定并作为整体的灯具光源。很显然，这种光源结构与前述传统光源结构明 显不同。 但这种用多个大功率 LED直接悍接组合成整体光源的做法存在 十分明显的弊端： 不仅更换 LED很困难， 而且增加了灯具光源部分生产 和维修的复杂程度，造成生产和维修的低效率高成本。特别从散热角度考 虑，现有方法只能通过灯具另带的散热器件或灯具外壳进行散热， 散热效 率难以提高， 影响照明用 LED的使用寿命。
中国专利申请号 2004100519359公幵了 "一种 LED组合灯具" ， 其 将光源部分包括二个以上的发光模块组成， 通过 LED光源模块以多种形 式组合成灯具。 中国专利申请号为 2007200035576的 "一种 LED片材及 其组成的 LED灯具灯芯"专利， 用多个 LED安装在长方形印刷线路板的 LED.片材， 可任意组装成任意的截面为多边形的 LED灯芯。 这两个专利 将上述用多个 LED直接焊接组合成整体光源的做法作了一定改进， 把灯 具的整体光源通过较小的发光模块或 LED片材组合而成， 因此都具有简 化生产工艺、降低 LED灯具生产和维护成本的益处。但由于光源模块（或 者 LED片材）仍然由多个 LED直接焊接组合而成， 因此并没有从根本上 摆脱上述弊端，只是程度有所减轻而已。而且这两个专利都没有针对自身 主张的改进方案明确提出相应的 LED散热方案， 因此并不是理想的光源 结构。 发明内容
为彻底改变用多个大功率 LED直接焊接组合成整体光源的做法， 本 发明的目的在于提供一种改进的光源结构， 可以将每个大功率 LED连同 与之一体化的散热器做成一个独立的光源单元，通过与匹配灯具接口可自 由拆装的活动连接方式， 这样的 LED光源单元即可任意组成所需要的光 源模块或灯具的整体光源。
为达到上述目的， 本发明的技术解决方案是：
一种与散热器一体的大功率 LED照明光源单元， 包括散热器和固定 在散 器上的大功率 LED, 在散热器主体端面中心安装平台上安装有一 个或多个大功率 LED, 并以电路连接引出正负极， 在对应于 LED安装面 的散热器另一端， 有连接 LED正负极、 且可与匹配的灯具接口实现活动 式连接的光源接头， 在散热器主体上靠近 LED的安装处， 沿散热器的轴 线方向开有若干两端贯通的通孔。
作为优选的技术方案：
如上所述的一种与散热器一体的大功率 LED照明光源单元， 其中， 所述的散热器结构包括对称或不对称的柱形、筒体形， 或加带耳状突起的 柱形、 筒体形。
如上所述的一种与散热器一体的大功率 LED照明光源单元， 其中， 所述散热器结构除主体端面的 LED安装平台以外，还包括若干散热鳍片， 或散热窗， 或散热鳍片和散热窗的结合。
如上所述的一种与散热器一体的大功率 LED照明光源单元， 其中， 所述散热器由铝、 铝合金、 铜或铜合金制造。
如上所述的一种与散热器一体的大功率 LED照明光源单元， 其中， 所述光源接口的活动式连接包括机械连接或电路连接。 如上所述的一种与散热器一体的大功率 LED照明光源单元， 其中， 所述光源接口的机械连接包括螺纹连接（类似罗口灯泡连接方式）、 或卡 口连接（类似插口灯泡连接方式） 、 或推入式弹性连接（类似推入式搭扣 连接或玻管保险丝安装连接方式） 。
如上所述的一种与散热器一体的大功率 LED照明光源单元， 其中： 所述沿散热器轴线在散热器上开的两端贯通的通孔的端截面呈折线或曲 线， 且可以呈闭环或开环。
本发明的有益效果是：
1 ) 使大功率 LED散热更加高效： 由于大功率 LED光源单元已和散 热器结为一体， 每个 LED工作时产生的大部分热量不仅随时通过自身的 散热器以热传导方式扩散，而且由于在散热器主体上靠近 LED的安装处， 沿散热器的轴线方向开有若干两端贯通的通孔，从而形成自对流散热， 因 此不易产生热量积累， 散热效果更加显著； 如果需要， 配套使用的灯具还 可设置专门的散热结构，其余部分的热量可由灯具提供的二次散热结构继 续散热， 实现两次散热效果， 因此散热效率提高， 对延长照明 LED的使 用寿命十分有益。
2 )本发明与散热器一体的大功率 LED照明光源单元可以小到只含一 个大功率 LED, 或者仅含为数不多的大功率 LED, 使 LED光源部件彻底 实现模块化， LED 光源部件可脱离灯具单独制作， 从而便于灯具光源的 规模化生产。
3 )方便灯具光源的安装和维修，哪只 LED光源单元损坏就更换哪只， 不会连累其它未损坏的 LED光源单元， 从而节省成本。 附图说明
图 1为本发明的立体结构示意图。
其中 1为大功率 LED 2为通孔， 3为安装平台
4为散热器 5为光源接头 具体实施方式
下面结合附图对本发明的实施方式作进一步的说明： 如图 1所示， 本发明的与散热器一体的大功率 LED照明光源单元， 其包括四周有十六个散热鳍片的柱形铝制散热器 4，在散热器主体端面中 心安装平台 3上安装有一个大功率 LED1， 并以电路连接引出正负极， 在 对应于 LED安装面的散热器 4的另一端， 有连接 LED正负极、 且可与匹 配的内螺纹灯具接口实现活动式连接的外螺紋光源接头 5，在散热器 4主. 体上靠近 LED的安装处， 沿散热器 4的轴线方向开有六个两端贯通的通 孔 2。
经试验证明，本发明的 LED照明灯具确实解决了问题，使大功率 LED 光源部件实现模块化， 具有 LED散热更加高效、 便于灯具光源的规模化 生产、 灯具光源的安装维修方便和节省成本的特点和优点。
本发明不局限于上述具体实施方式， 不论在结构和形状上作任何改 变， 凡是类似的大功率 LED照明光源单元， 均落入本发明的保护范围之 内。

Claims

1. 一种与散热器一体的大功率 LED照明光源单元，包括散热器和固定在 散热器上的大功率 LED, 在散热器主体端面中心安装平台上安装有一 个或多个大功率 LED, 并以电路连接引出正负极， 其特征是： 在对应 于 LED安装面的散热器另一端， 有连接 LED正负极、 且可与匹配的 灯具接口实现活动式连权接的光源接头，在散热器主体上靠近 LED的安 装处， 沿散热器的轴线方向开有若干两端贯通的通孔。
2. 如权利要求 1所述的与散热器一体的大功率 LED照明光源单元，其特 征在于： 所述的散热器结构包括对称或不对称的柱形、 筒体形， 或加 带耳状突起的柱形、 筒体形。
3. 如权利要求 2所述的与散热器一体的大功率 LED照明光源单元，其特 求
征在于： 所述散热器结构除主体端面的 LED安装平台以外， 还包括若 干散热鳍片， 或散热窗， 或散热鳍片和散热窗的结合。
4. 如权利要求 3所述的与散热器一体的大功率 LED照明光源单元，其特 征在于： 所述散热器由铝、 铝合金、 铜或铜合金制造。
5. 如权利要求 1所述的与散热器一体的大功率 LED照明光源单元，其特 征在于： 所述活动式连接包括机械连接或电路连接。
6. 如权利要求 5所述的与散热器一体的大功率 LED照明光源单元，其特 征在于： 所述活动式机械连接包括螺紋连接、 或卡口连接， 或推入式 弹性连接。
7. 如权利要求 1所述的与散热器一体的大功率 LED照明光源单元，其特 征在于： 所述沿散热器轴线在散热器上开的两端贯通的通孔的端截面 呈折线或曲线， 且可以呈闭环或开环。
PCT/CN2008/000525 2007-11-30 2008-03-17 High-power illuminating light source unit integrating with a heat radiator WO2009070949A1 (en)

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Application Number Priority Date Filing Date Title
CNA2007101714136A CN101451698A (zh) 2007-11-30 2007-11-30 与散热器一体的大功率led照明光源单元
CN200710171413.6 2007-11-30

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CN2851833Y (zh) * 2005-12-16 2006-12-27 陈忠 射灯的改良结构
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