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CN101469819A - 发光二极管灯具 - Google Patents

发光二极管灯具 Download PDF

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Publication number
CN101469819A
CN101469819A CNA2007101861154A CN200710186115A CN101469819A CN 101469819 A CN101469819 A CN 101469819A CN A2007101861154 A CNA2007101861154 A CN A2007101861154A CN 200710186115 A CN200710186115 A CN 200710186115A CN 101469819 A CN101469819 A CN 101469819A
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heat
radiating fin
led lamp
fin group
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黄中元
郭哲豪
查新祥
余业飞
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Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
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Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
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Priority to CNA2007101861154A priority Critical patent/CN101469819A/zh
Priority to US12/107,779 priority patent/US7488093B1/en
Publication of CN101469819A publication Critical patent/CN101469819A/zh
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-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
    • F21V15/00—Protecting lighting devices from damage
    • 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
    • F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
    • 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
    • F21V29/71—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
    • F21V29/717—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 using split or remote units thermally interconnected, e.g. by thermally conductive bars or heat pipes
    • 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
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

一种发光二极管灯具，包括一灯架、设于该灯架中的至少一发光二极管模组、一贴设在发光二极管模组一侧的散热鳍片组，该发光二极管模组包括一基板及至少一发光二极管，该发光二极管及散热鳍片组分别设置在该基板的两侧，该发光二极管灯具还包括至少一热管及一罩设在该散热鳍片组上方的顶盖，该热管分别与散热鳍片组及顶盖相连，该顶盖与散热鳍片组的顶部之间具有一定间距。该顶盖遮挡在散热模组的上方从而避免散热模组直接暴露在空气中，可减少严冬时散热模组上的积雪、结冰，也可以防止灰尘直接堆积在散热鳍片上；并且，通过热管将一部分热量迅速传导至顶盖上，可进一步利用顶盖散热，使得该发光二极管灯具具有较佳的散热效果。

Description

发光二极管灯具
技术领域
本发明涉及一种照明装置，特别是指一种发光二极管灯具。
背景技术
发光二极管作为一种新兴的第三代光源，因其具有工作寿命长、节能、环保等优点而普遍被市场看好。由发光二极管组成的模组能产生大功率、高亮度的光源，正日益取代白炽灯等现有的光源并在路灯中得到应用，然而，随着发光二极管及其模组的功率、亮度的增大，其产生的热量也越来越多，通常的散热方案是在该发光二极管模组上方贴设一散热鳍片组，通过散热鳍片以自然对流的方式与空气进行热交换，从而将热量散发到周围空气中。
然而，在室外环境中，裸露在路灯顶部的散热鳍片在天气寒冷时容易积雪、结冰，且容易积灰尘，从而增加路灯灯杆的负担甚至导致灯杆断裂，且仅靠散热鳍片散热，其散热效果有限。
发明内容
有鉴于此，有必要提供一种可防止积雪、结冰、积尘，并具有较佳散热效果的的发光二极管灯具。
一种发光二极管灯具，包括一灯架、设于该灯架中的至少一发光二极管模组、一贴设在发光二极管模组一侧的散热鳍片组，该发光二极管模组包括一基板及至少一发光二极管，该发光二极管及散热鳍片组分别设置在该基板的两侧，该发光二极管灯具还包括至少一热管及一罩设在该散热鳍片组上方的顶盖，该热管分别与散热鳍片组及顶盖相连，该顶盖与散热鳍片组的顶部之间具有一定间距。
一种发光二极管灯具，包括至少一发光二极管模组及贴设在发光二极管模组一侧的一散热鳍片组，还包括至少一热管及设置在散热鳍片组上方的一顶盖，该热管连接散热鳍片组与顶盖，并将顶盖支撑固定在散热鳍片组的正上方。
该顶盖遮挡在散热模组的上方从而避免散热模组直接暴露在空气中，可减少严冬时散热模组上的积雪、结冰，也可以防止灰尘直接堆积在散热鳍片上；并且，通过热管将一部分热量迅速传导至顶盖上，可进一步利用顶盖散热，使得该发光二极管灯具具有较佳的散热效果。
下面参照附图，结合具体实施例对本发明作进一步的描述。
附图说明
图1是本发明的发光二极管灯具实施例的立体分解图。
图2是图1中的立体组装图。
图3是图1的倒置图。
图4是图2的右视图。
图5是图1中的发光二极管灯具做路灯之用时的状态图。
具体实施方式
图1及图2所示为本发明一实施例的发光二极管灯具100，其包括一灯架10、若干设于灯架10中的发光二极管模组20、一贴设在发光二极管模组20上方的散热模组30及一罩设在该散热模组30上方的顶盖50。
所述灯架10包括一外壳12及一贴设于该外壳12底部的盖板15。该外壳12包括一矩形框体120及自该框体120一侧延伸而出的一拱形部126。该框体120包括三长方形侧壁121，每一侧壁121顶部边缘向内水平延伸形成顶板122，该三侧壁121及顶板122围成一收容空间123，该收容空间123用以收容所述发光二极管模组20；该顶板122上间隔开设有若干固定孔124，这些固定孔124用以固定所述散热模组30。该拱形部126设置在该框体120未设侧壁121的一侧并与二侧壁121及顶板122一体连接，请同时参阅图3，该拱形部126围成一拱形空间1260可用于放置一接线盒(图未示)，该接线盒用以连接发光二极管模组20与外部电源；该拱形部126的前端面上设有一连接孔1262。该盖板15包括一矩形盖板150及一梯形盖板156，该矩形盖板150、梯形盖板156分别与框体120、拱形部126的底部对应，该矩形盖板150中间装设有一透明镜片152，该透明镜片152与发光二极管模组20上下对应用以透设光线。
请同时参阅图3，每一发光二极管模组20包括一基板210及装设于该基板210上的均匀间隔呈线性分布的若干发光二极管220。
所述散热模组30包括一散热鳍片组32及设置于该散热鳍片组32中的三热管35。该散热鳍片组32由导热性良好的金属一体挤压而成。该散热鳍片组32包括一平板形导热板320及从该导热板320顶部一体延伸的若干散热片325。该导热板320的底部326开设有三凹槽322，该三凹槽322自该导热板320中间区域向四周水平延伸，三者连线呈三角形，每一凹槽322的一端开设有一通孔323，该通孔323自导热板320底部向上延伸贯穿散热片325。该导热板320底部开设有若干螺纹孔324。所述热管35大致弯折成U形，每一热管35包括一水平的吸热段352、一自该吸热段352一端竖直向上延伸的传热段354及自该传热段354上端水平延伸的放热段356，该传热段354的长度较该散热鳍片组32的高度长，这些热管35的放热段356可与吸热段352既可共面设置，亦可非共面设置。该发光二极管灯具100还包括三压板36，每一压板36为一长方形的板体，该压板36的顶部沿板体纵向开设有一半圆形凹槽366，该三压板36用于将热管35的放热段356固定在顶盖50上。
该顶盖50为拱形，可采用重量较轻且导热性较好的铝板弯曲而成。该顶盖50包括一弯曲外表面51及一弯曲内表面52。该外表面51为平滑的弧形；该顶盖50的内表面52开设有三半圆形凹槽56，该三凹槽56沿该顶盖50的纵向延伸用于部分收容热管35的放热段356，该三凹槽56的连线呈三角形排布，以较稳固地固定顶盖50。该顶盖50的覆盖区域应足够将所述散热模组30的顶部遮住。
请同时参阅图4，组装时，首先，装配散热模组30：将热管35的吸热段352穿过散热鳍片组32的通孔323进而收容于导热板320的凹槽322中(该通孔323与凹槽322交界处具有一斜角)，并通过焊接固定。
然后，连接散热模组30与灯架10：将散热鳍片组32置于灯架10的上方并将该散热鳍片组32的导热板320贴设于框体120的顶板122上，同时使得导热板320的螺纹孔324与顶板122的固定孔124对应，通过若干固定件(图未示)穿过固定孔124、螺纹孔324以将散热模组30与灯架10连接固定。
接着，在导热板320的底部326涂上导热胶，将发光二极管模组20贴设在该散热模组30的底部326并可通过螺钉将发光二极管模组20与导热板320连接固定，这些发光二极管模组20的发光二极管220在导热板320的底部326形成一具有若干列、若干行的矩形方阵。
再次，安装顶盖50：将顶盖50罩设于散热模组30的上方，并使得顶盖50的凹槽56对应收容热管35的放热段356的上半部，将压板36从放热段356的另一侧贴设到顶盖50的内表面52上，同时使得放热段356收容于凹槽366中，可将该压板36焊接固定在顶盖50上，亦可通过螺钉连接，在使用螺钉连接时，需要在压板36顶面与顶盖50之间涂设导热胶。由于热管35的放热段356高于散热片325的顶部，使得该顶盖50的内表面52与散热片325之间具有一定间距，并且还需要保证顶盖50与该散热鳍片组32的侧面之间保持一定的间距，使得外界空气可与散热片325的上方空气相通。由于热管35的吸热段352收容于导热板320的凹槽322中呈三角形排列，不仅可均匀吸收热量，而且热管35的放热段356可对顶盖50形成三点支撑，从而顶盖50可被稳固支撑于该散热鳍片组32的上方。另外，该顶盖50还可与灯架10连接固定，从而可减轻热管35的负担。
请同时参阅图5，将该发光二极管灯具100安装到一灯杆60上用作路灯：该灯杆60具有一臂部62，该臂部62一侧通过连接孔1262与发光二极管灯具100的拱形部126连接，从而将该发光二极管灯具100固定。由于顶盖50遮挡在散热鳍片组32的上方从而避免散热模组直接暴露在空气中，可减少严冬时散热片325上的积雪、结冰，还可防止沙尘堆积，该顶盖50的平滑的外表面51可减少积雪堆积，减少发光二极管灯具100的负担。并且，通过热管35可将发光二极管模组20产生的一部分热量迅速传导至顶盖50，利用顶盖50增加散热面积，提高散热效率；进一步地，由于散热鳍片组32的顶部、侧面与顶盖50之间的留有间隙，可使得发光二极管模组20及散热鳍片组32周围的热空气与外界相通，有利于热交换。

Claims (12)

1.一种发光二极管灯具，包括一灯架、设于该灯架中的至少一发光二极管模组、一贴设在发光二极管模组一侧的散热鳍片组，该发光二极管模组包括一基板及至少一发光二极管，该发光二极管及散热鳍片组分别设置在该基板的两侧，其特征在于：该发光二极管灯具还包括至少一热管及一罩设在该散热鳍片组上方的顶盖，该热管分别与散热鳍片组及顶盖相连，该顶盖与散热鳍片组的顶部之间具有一定间距。
2.如权利要求1所述的发光二极管灯具，其特征在于：所述顶盖将所述散热鳍片组的顶部遮住。
3.如权利要求1所述的发光二极管灯具，其特征在于：所述顶盖为拱形，包括一弯曲外表面及一弯曲内表面，该外表面为平滑的弧形。
4.如权利要求1所述的发光二极管灯具，其特征在于：所述顶盖为弯曲成弧形的铝板。
5.如权利要求1所述的发光二极管灯具，其特征在于：所述热管包括一水平的吸热段、一自该吸热段一端竖直向上延伸的传热段及自该传热段上端水平延伸的放热段，该传热段的长度较该散热鳍片组的高度长。
6.如权利要求5所述的发光二极管灯具，其特征在于：所述散热鳍片组包括一导热板及从该导热板顶部一体延伸的若干散热片，所述热管的吸热段收容于该导热板中，该热管的传热段贯穿通过散热片。
7.如权利要求5所述的发光二极管灯具，其特征在于：所述顶盖的内表面开设有至少一半圆形凹槽，该凹槽收容热管的放热段。
8.如权利要求7所述的发光二极管灯具，其特征在于：所述热管的数量为三根，且顶盖的凹槽数量对应为三个，该三凹槽所在位置的连线呈三角形排布。
9.如权利要求8所述的发光二极管灯具，其特征在于：所述发光二极管灯具还包括三压板，每一压板为一长方形的板体，该压板的顶部沿板体纵向开设有一半圆形凹槽，该三压板的凹槽用于收容热管的放热段并将热管固定在顶盖的三凹槽内。
10.一种发光二极管灯具，包括至少一发光二极管模组及贴设在发光二极管模组一侧的一散热鳍片组，其特征在于：还包括至少一热管及设置在散热鳍片组上方的一顶盖，该热管连接散热鳍片组与顶盖，并将顶盖支撑固定在散热鳍片组的正上方。
11.如权利要求10所述的发光二极管灯具，其特征在于：所述热管的数量为至少三根，该三根热管在顶盖上的支撑固定点的连线呈三角形排布。
12.如权利要求10所述的发光二极管灯具，其特征在于：所述顶盖被固定在远离散热鳍片组的顶部的位置处，使顶盖与散热鳍片组的顶部之间形成一间距以供外部气流在该间距所形成的空间内流动。
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