WO2011113288A1 - 大功率led照明设备 - Google Patents

大功率led照明设备 Download PDF

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Publication number
WO2011113288A1
WO2011113288A1 PCT/CN2010/080421 CN2010080421W WO2011113288A1 WO 2011113288 A1 WO2011113288 A1 WO 2011113288A1 CN 2010080421 W CN2010080421 W CN 2010080421W WO 2011113288 A1 WO2011113288 A1 WO 2011113288A1
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Prior art keywords
lamp
led
heat sink
lighting device
power led
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PCT/CN2010/080421
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English (en)
French (fr)
Inventor
杨志君
吴剑波
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厦门聚萤光电科技有限公司
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Publication of WO2011113288A1 publication Critical patent/WO2011113288A1/zh

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    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • 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 relates to an LED lighting device, and more particularly to a high power LED lighting device.
  • LED Light Emitting Diodes
  • the existing LED lamps are equipped with LED lamp beads on the circuit board to form a point light source illumination mode, so that the direction in which the LED lamp beads are facing is brighter, and the illumination range is limited, if the illumination is to be increased. Brightness is also achieved by increasing the number of LED beads placed, and it is still impossible to achieve multi-angle or wide-range high-intensity illumination.
  • the heat dissipation device mostly adopts a heat dissipation structure of multiple fins, so the volume is large, and the open area of the light source on the light source base is simply relied on. And the form of heat dissipation with the metal material of the base itself can not meet the heat dissipation requirements of high-brightness and high-power LED lighting equipment, and limits the service life of high-brightness lighting equipment.
  • the object of the present invention is to provide a high-power LED lighting device capable of realizing a wide range of high-brightness illumination, and has a compact structure, a small volume, and a better heat dissipation effect to ensure the service life of the lighting device.
  • the solution of the present invention is:
  • a high-power LED lighting device comprises a lamp cap, a lamp shell matched with the lamp cap, a transformer circuit board disposed in the lamp housing, a heat sink body matched with the lamp shell, and a lampshade fixing plate matched with the heat sink body , the LED illuminator and the lamp cover covering the LED illuminator; wherein: the LED illuminator is a cylinder, and a plurality of LED lamp beads are distributed on the outer circumference or the outer circumference and the bottom end surface, and the LED illuminant is sleeved
  • the thermostatic column has a heat conducting function, and one end of the thermostatic column is extended into the heat dissipating body, and each LED lamp bead is electrically connected to the transformer circuit board.
  • the thermostatic column is a columnar outer casing formed of a heat conductive material, and the outer casing houses a honeycomb content sintered from copper powder and a cooling liquid filled between the copper powder particles.
  • the outer edge of the thermostatic column forms a stop stage to top the LED illuminator.
  • the heat dissipating body includes an auxiliary heat dissipating body and a main heat dissipating body, and the auxiliary heat dissipating body is a single body, and the main heat dissipating body is a sleeve having a sleeve cavity, and the outer circumference is radially arranged with longitudinal metal fins, and the main heat dissipating body
  • the lower end is connected to the auxiliary heat sink, and the upper end is connected to the lamp cover fixing plate.
  • the lower part of the limiting step of the thermostatic column is inserted into the sleeve cavity of the main heat sink through the lamp cover fixing plate.
  • the LED lighting device of the present invention can form a multi-angle illuminated stereo light source because the illuminant is a cylinder formed by a plurality of LED lamp beads, and the formed lamp body can realize a wide range and high height.
  • Brightness illumination; the setting of multiple LED lamp beads will inevitably generate a large amount of heat, and the thermostatic column is placed in the illuminant, which can transfer the heat generated in the illuminant to the heat sink, and the heat sink with metal fins
  • the heat is dissipated in the air in time to meet the heat dissipation requirements of the LED lamp bead and ensure the service life of the high-brightness lighting device.
  • the copper powder in the thermostatic column has better thermal conductivity, and can vaporize the cooling liquid during the heat generation to efficiently transfer the heat from the high temperature end to the low temperature direction, thereby forming
  • the heat conductor with constant temperature function effectively meets the heat dissipation requirements of the high-power LED illuminator, further ensuring the service life of the high-power LED lighting device.
  • Figure 1 is an exploded perspective view of the present invention
  • Figure 2 is a combined appearance view of the present invention
  • FIG. 3 is a schematic view showing the structure of the thermostatic column of the present invention.
  • a high-power LED lighting device disclosed in the present invention comprises a lamp cap 1, a lamp housing 2, and a transformer circuit board (not shown) disposed in the lamp housing 2.
  • the lamp cap 1 is formed with a thread or a buckle that cooperates with the lower portion of the lamp housing 2; and the upper portion of the lamp housing 2 forms a sleeve to match the auxiliary heat sink 31, and the middle portion of the lamp housing 2 forms a receiving cavity to accommodate the transformer circuit board.
  • the heat dissipating body 3 includes an auxiliary heat dissipating body 31 and a main heat dissipating body 32.
  • the auxiliary heat dissipating body 31 is a single body, and the main heat dissipating body 32 is a sleeve having a sleeve cavity 321, and the outer circumference is radially arranged with longitudinal metal fins 322.
  • the lower end of the main heat sink 32 is connected to the auxiliary heat sink 31, and the upper end is connected to the lamp cover fixing plate 4; the lamp cover fixing plate 4 is a ring piece having a center hole 41.
  • the thermostatic column 5 is a columnar outer casing 51 formed of a conductor material, and the outer casing 51 houses a honeycomb-like content sintered from copper powder particles 52 and filled with copper powder particles 52.
  • the cooling liquid and the copper powder 52 have better thermal conductivity, and in the process of heating, the cooling liquid can be vaporized to efficiently transfer heat from the high temperature end to the low temperature direction, thereby forming a constant temperature.
  • a limiting stage stage 53 is formed on the outer edge of the thermostatic column 5 to block the LED illuminator 6.
  • the LED illuminator 6 is a cylindrical body, and a plurality of LED lamp beads 61 are distributed on the outer circumference or the outer circumference and the bottom end surface.
  • the lamp cap 1, the lamp housing 2, the heat dissipating body 3 and the lampshade fixing plate 4 are sequentially assembled, and the illuminating cylinder 6 is placed at the limit of the thermostatic column 5.
  • the upper portion of the step 53 and the lower portion of the limiting step 53 of the thermostatic column 5 extend through the central hole 41 of the lamp cover fixing plate 4 and are placed in the sleeve 321 of the main heat sink 32.
  • the cover 7 is placed in the illuminating cylinder 6 Externally fixed with the lampshade fixing plate 4, each LED lamp bead 61 is connected by a wire and electrically connected with the transformer circuit board, thereby forming a high-power LED lighting device.
  • the illuminant 6 is a cylinder formed by a plurality of LED lamp beads 61, the illuminant 6 can form a multi-angle illuminated stereo light source, and the formed lamp body can realize a wide range and high brightness. Illumination; the arrangement of the plurality of LED lamp beads 61 inevitably generates a large amount of heat, and the thermostatic column 5 is placed in the illuminant 6, and the heat generated in the illuminant 6 can be transferred to the heat sink 3, which has the metal fins The heat sink 3 of the 322 dissipates heat in the air in time to meet the heat dissipation requirements of the LED lamp bead and ensure the service life of the high brightness lighting device.

Description

大功率LED照明设备 技术领域
本发明是关于一种LED照明设备，特别是指一种大功率LED照明设备。
背景技术
随着节能减排的发展趋势，LED（LightEmittingDiodes，发光二极管）以其节能环保、发光效率高、寿命长等特点，得到越来越广泛的应用，LED作为一种新型的固体光源，被应用于各种照明场所。
而现有的LED灯都是在电路板上配合有LED灯珠，形成为点光源的照射方式，因此会出现LED灯珠正对的方向较亮，而照射范围有限，如欲提高其照射的亮度亦是采用增加排列LED灯珠的数量来实现，仍然无法实现多角度或是大范围高亮度的照射。
另外，实现高亮度的照明，多采用复数个LED灯珠聚集的方式，其散热装置多是采用多鳍片的散热结构，因而体积都较大，并且单纯依靠光源基座上对光源的敞开面积及配合基座本身的金属材质实现散热的形式已无法满足高亮度大功率LED照明设备的散热要求，而限制了高亮度照明设备的使用寿命。
发明内容
本发明的目的是提供一种可以实现大范围高亮度照明的大功率LED照明设备，同时其结构紧凑、体积小，具有较佳的散热效果，以保证照明设备的使用寿命。
为实现上述目的，本发明的解决方案是：
一种大功率LED照明设备，包括一灯头、一与灯头配合的灯壳、置于灯壳中的变压电路板、一与灯壳配合的散热体、一配合于散热体上的灯罩固定板、LED发光体及罩置LED发光体的灯罩；其中：该LED发光体为一筒体，其外周缘或外周缘及底端面上分布有复数个LED灯珠，该LED发光体是套置于具有导热功能的恒温柱上，而恒温柱的一端是伸置于散热体中，各LED灯珠与变压电路板电连接。
所述恒温柱为一由导热材料形成的柱状外壳，外壳中容置有由铜粉颗粒状烧结而成的蜂窝状内容物与充填于铜粉颗粒之间的冷却液。
所述恒温柱外缘形成有一限位台阶段以顶挡LED发光体。
所述散热体包括辅助散热体及主散热体，辅助散热体为一块体，而主散热体为一具有套腔的套筒，其外周呈放射状的排布有纵向金属鳍片，主散热体的下端与辅助散热体连接在一起，而上端连接灯罩固定板。
所述恒温柱的限位台阶下部是穿过灯罩固定板伸置于主散热体的套腔中。
采用上述方案后，本发明的LED照明设备由于发光体是由复数个LED灯珠形成的筒体，则该发光体可以形成一多角度照射的立体光源，形成的灯体可以实现大范围、高亮度的照明；多个LED灯珠的设置必然会产生大量的热，而恒温柱恰置于发光体中，可以将发光体中产生的热量向散热体中传递，由具有金属鳍片的散热体及时的将热量散发于空气中，以此满足LED灯珠的散热要求，保障高亮度照明设备的使用寿命。
另外，恒温柱中的铜粉具有较佳的导热性能，其在发热的过程中可以将冷却液气化而将热量迅速由温度高的一端向温度低的方向进行有效的传递，以此形成有具有恒温功能的导热体，有效满足大功率LED发光体的散热要求，进一步保障了大功率LED照明设备的使用寿命。
附图说明
图1是本发明的立体分解图；
图2是本发明的组合外观图；
图3是本发明恒温柱的结构示意图。
具体实施方式
如图1、2所示，本发明揭示的一种大功率LED照明设备，其包括一灯头1、一灯壳2、一置于灯壳2中的变压电路板（图中未示出）、一散热体3、一灯罩固定板4、一恒温柱5、LED发光体6及一灯罩7。
灯头1形成有与灯壳2下部配合的螺纹或是卡扣；而灯壳2上部形成套座以配合辅助散热体31，而灯壳2中部形成容置腔以以容置变压电路板。
散热体3包括辅助散热体31及主散热体32，辅助散热体31为一块体，而主散热体32为一具有套腔321的套筒，其外周呈放射状的排布有纵向金属鳍片322，主散热体32的下端与辅助散热体31连接在一起，而上端连接灯罩固定板4；灯罩固定板4为一具有中心孔41的环片。
配合图3所示，恒温柱5为一由导体材料形成的柱状外壳51，外壳51中容置有由铜粉颗粒状52烧结而成的蜂窝状内容物与充填于铜粉颗粒52之间的冷却液，铜粉52具有较佳的导热性能，其在发热的过程中可以将冷却液气化而将热量迅速由温度高的一端向温度低的方向进行有效的传递，以此形成有具有恒温功能的导热体。恒温柱5外缘形成有一限位台阶段53以顶挡LED发光体6，该LED发光体6为一筒体，其外周缘或外周缘及底端面上分布有复数个LED灯珠61。
结合图2所示，本发明的LED照明设备组合时，灯头1、灯壳2、散热体3及灯罩固定板4依次组装在一起，而发光筒体6是套置于恒温柱5的限位台阶53上部，而恒温柱5的限位台阶53的下部是穿过灯罩固定板4的中心孔41伸置于主散热体32的套腔321中，最后将灯罩7罩置于发光筒体6外与灯罩固定板4固定在一起，各LED灯珠61由导线连接并与变压电路板电连接，便形成了大功率的LED照明设备。
本发明的LED照明设备由于发光体6是由复数个LED灯珠61形成的筒体，则该发光体6可以形成一多角度照射的立体光源，形成的灯体可以实现大范围、高亮度的照明；多个LED灯珠61的设置必然会产生大量的热，而恒温柱5恰置于发光体6中，可以将发光体6中产生的热量向散热体3中传递，由具有金属鳍片322的散热体3及时的将热量散发于空气中，以此满足LED灯珠的散热要求，保障高亮度照明设备的使用寿命。

Claims (5)

1、一种大功率LED照明设备，包括一灯头、一与灯头配合的灯壳、置于灯壳中的变压电路板、一与灯壳配合的散热体、一配合于散热体上的灯罩固定板、LED发光体及罩置LED发光体的灯罩；其特征在于：该LED发光体为一筒体，其外周缘或外周缘及底端面上分布有复数个LED灯珠，该LED发光体是套置于具有导热功能的恒温柱上，而恒温柱的一端是伸置于散热体中，各LED灯珠与变压电路板电连接。
2、如权利要求1所述的大功率LED照明设备，其特征在于：恒温柱为一由导热材料形成的柱状外壳，外壳中容置有由铜粉颗粒状烧结而成的蜂窝状内容物与充填于铜粉颗粒之间的冷却液。
3、如权利要求1所述的大功率LED照明设备，其特征在于：恒温柱外缘形成有一限位台阶段以顶挡LED发光体。
4、如权利要求1所述的大功率LED照明设备，其特征在于：散热体包括辅助散热体及主散热体，辅助散热体为一块体，而主散热体为一具有套腔的套筒，其外周呈放射状的排布有纵向金属鳍片，主散热体的下端与辅助散热体连接在一起，而上端连接灯罩固定板。
5、如权利要求3或4所述的大功率LED照明设备，其特征在于：恒温柱的限位台阶下部是穿过灯罩固定板伸置于主散热体的套腔中。
PCT/CN2010/080421 2010-03-15 2010-12-29 大功率led照明设备 WO2011113288A1 (zh)

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