CN202511239U - 一种复合相变立体式led散热器 - Google Patents
一种复合相变立体式led散热器 Download PDFInfo
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- CN202511239U CN202511239U CN2012200864289U CN201220086428U CN202511239U CN 202511239 U CN202511239 U CN 202511239U CN 2012200864289 U CN2012200864289 U CN 2012200864289U CN 201220086428 U CN201220086428 U CN 201220086428U CN 202511239 U CN202511239 U CN 202511239U
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- 150000001875 compounds Chemical class 0.000 title abstract 4
- 238000010438 heat treatment Methods 0.000 claims description 29
- 239000002131 composite material Substances 0.000 claims description 9
- 230000002035 prolonged Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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Abstract
本实用新型涉及一种复合相变立体式LED散热器。传统的大功率LED灯具用散热器结构均为在散热器下方安装芯片的方式，其有效散热基本依赖于散热器表面积。本实用新型设置相变散热器和薄板状的散热片，之间设置有薄片状的高导热片；散热片的薄板两端设置有折起片，折起片上设置有鼓起的曲面，薄板、折起片和折起片上的曲面组成翼板式散热器；集成LED芯片嵌设在翼板式散热器的薄板中；翼板式散热器上的折起片和曲面上均设置有条形开槽。本实用新型采用了立体三维散热片结构，集成了相变散热器和翼板式散热器的散热优点，增大了LED芯片的散热面积，设置导热片提高散热效率，有效延长了LED灯具的使用寿命。
Description
ー种复合相变立体式LED散热器
技术领域
[0001] 本实用新型属于LED灯具技术领域，具体涉及ー种复合相变立体式LED散热器。背景技术
[0002] 发光二极度管LED作为新一代绿色环保型固体照明光源，具有耗电量少、光色纯、全固态、质量轻、体积小、环保等一系列的优点。LED发光时会有部分能量转化为热量，因此会使LED芯片温度升高。而温度对LED芯片的工作性能影响极大，高温会导致芯片出射的光子減少，色温质量下降，加快芯片老化，缩短器件寿命等严重的后果。因此为保证LED正常工作，必须将其散发出来的热量及时的散发出去。目前大功率LED芯片应用的越来越多，据资料显示大功率LED只能将约10%〜15%的输入功率转化为光能，而将其余85%〜90%转化为热能。大功率的LED光源又分为两种类型，一种是阵列分布式大功率LED光源，它是将数个LED进行阵列分布布置。另ー种是集成式大功率LED光源，将数颗LED集成封装在一起。这两种类型的LED灯具因LED芯片布置方式不同，在配光曲线、占用空间以及散热上面有所不同。相对来说，集成式大功率LED光源制成的灯具质量要轻，在封装材料方面用料要少，配光方面与阵列分布式大功率LED光源相比也可以达到路灯照明的要求，是以后的路灯发展趋势。但是因为散热相比阵列式要难，因此寿命缩短，成为阻碍集成式大功率LED光源发展的关键难题。
[0003] 传统的大功率LED灯具用散热器结构均为上方是鳍片式散热器下方安装芯片的方式，其有效散热基本依赖于散热器表面积。LED芯片的热量主要依靠散热器底板传导，且永远是LED安装上方区域的温度远高于散热器边缘的温度，因为其热量须由LED芯片安装表面区域逐步向散热器边缘传导。而主流散热器均采用6063铝，其导热率一般不超过200K/W。同时，在传统エ艺中，散热器和LED芯片中间均涂抹有导热硅脂类材料，其导热率基本在几K/W和十几K/W之间。这样，就更加难以使LED芯片的热量通过散热器得以更加有效的传导。
发明内容
[0004] 本实用新型的目的是提供一种能有效提高LED芯片的散热量、延长其使用寿命的复合相变立体式LED散热器。
[0005] 本实用新型所采用的技术方案是：
[0006] —种复合相变立体式LED散热器,设置有集成LED芯片,其特征在于：
[0007] 所述的散热器设置有相变散热器和薄板状的散热片，相变散热器和薄板状的散热片之间设置有薄片状的高导热片）；
[0008] 所述的散热片的薄板两端设置有折起片，折起片上设置有鼓起的曲面，薄板、折起片和折起片上的曲面组成翼板式散热器；
[0009] 集成LED芯片嵌设在翼板式散热器的薄板中。
[0010] 所述的翼板式散热器上的折起片和曲面上均设置有条形开槽。[0011] 所述的高导热片的四周边缘被密封导热胶圈封住。
[0012] 所述的相变散热器设置有圆筒形的导热柱，导热柱的外壁环周设置有轴向的鳍片插槽，插槽中插设有鳍片；
[0013] 导热柱的底部设置有底板，热管穿过底板插设在导热柱的内筒中，与导热柱顶部设置的环片状的盖板一起将导热柱、导热柱上设置的鳍片和底板固紫。
[0014] 本实用新型具有以下优点：
[0015] I、具有较高的散热效率。可以将LED芯片或大功率半导体器件所产生的热量快速散发，有效降低半导体器件结点温度，延长半导体器件寿命。
[0016] 2、节省材料，降低成本。比较传统散热器结构，高效三维立体散热器结构可以做的 更轻，节省大量有色金属，并有效降低散热器成本，具有很好的经济效益和社会效益。
[0017] 3、长寿命。传统散热器与芯片接触面大多采用硅脂等材料，具有一定的使用寿命。而高效三维立体散热器采用高导热片保证散热器与芯片的有效接触，其性能稳定，耐腐蚀耐氧化，理论寿命为无限长。
[0018] 4、绿色环保。散热器所有材料100%可回收，不含有毒物质，不污染环境。
附图说明
[0019] 图I为本实用新型结构图。
[0020] 图2为相变散热器结构图。
[0021 ] 图中，I-相变散热器，2-高导热片，3-密封导热胶圏，4-集成LED芯片，5_翼板式散热器，6-盖板,7-鳍片,8-底板,9-导热柱,10-热管。
具体实施方式
[0022] 下面结合具体实施方式对本实用新型进行详细的说明。
[0023] 本实用新型所述的ー种复合相变立体式LED散热器，设置有相变散热器I和薄板状的散热片，相变散热器I和薄板状的散热片之间设置有薄片状的高导热片2。散热片的薄板两端设置有折起片，折起片上设置有鼓起的曲面，薄板、折起片和折起片上的曲面组成翼板式散热器5。集成LED芯片4嵌设在翼板式散热器5的薄板中。翼板式散热器5上的折起片和曲面上均设置有条形开槽。高导热片2的四周边缘被密封导热胶圈3封住。翼板式散热器5具有较大的散热面积，折起片和曲面上均设置的条形开槽对散热其辅助作用，与相变散热器I的结构组合集成了两者的散热优点，更有效提高了散热效率。相变散热器I和翼板式散热器5的全部结构均采用1060纯铝材料，其导热率比传统的6063铝高出10%以上，可以更加快速的将LED芯片的热量传导出去。
[0024] 相变散热器I设置有圆筒形的导热柱9，导热柱9的外壁环周设置有轴向的鳍片插槽，插槽中插设有鳍片7。导热柱9的底部设置有底板8，热管10穿过底板8插设在导热柱9的内筒中，与导热柱9顶部设置的环片状的盖板6 —起将导热柱9、导热柱9上设置的鳍片7和底板8固紫。热管10通过其内部纯水的蒸发和凝固将热量传递给导热柱9，再通过鳍片7散热。其中热管10和底板8、热管10和导热柱9均过盈配合，热管10的底面和底板8的底面装配后处于同一平面；鳍片环和导热柱9为插接，其中鳍片7和导热柱9接触面以及导热柱9和底板8接触面均涂有导热胶密封；盖板6盖于导热柱9上，盖板6和导热柱9之间涂有导热 胶密封。
Claims (4)
1. ー种复合相变立体式LED散热器，设置有集成LED芯片（4)，其特征在于： 所述的散热器设置有相变散热器（I)和薄板状的散热片，相变散热器（I)和薄板状的散热片之间设置有薄片状的高导热片（2)； 所述的散热片的薄板两端设置有折起片，折起片上设置有鼓起的曲面，薄板、折起片和折起片上的曲面组成翼板式散热器（5)； 集成LED芯片（4)嵌设在翼板式散热器（5)的薄板中。
2.根据权利要求I所述的ー种复合相变立体式LED散热器，其特征在于： 所述的翼板式散热器（5)上的折起片和曲面上均设置有条形开槽。
3.根据权利要求I或2所述的ー种复合相变立体式LED散热器，其特征在于： 所述的高导热片（2)的四周边缘被密封导热胶圈（3)封住。
4.根据权利要求3所述的ー种复合相变立体式LED散热器，其特征在于： 所述的相变散热器（I)设置有圆筒形的导热柱（9)，导热柱（9)的外壁环周设置有轴向的鳍片插槽，插槽中插设有鳍片（7)； 导热柱（9)的底部设置有底板（8)，热管（10)穿过底板（8)插设在导热柱（9)的内筒中，与导热柱（9)顶部设置的环片状的盖板（6)—起将导热柱（9)、导热柱（9)上设置的鳍片(7)和底板（8)固紫。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544344A (zh) * | 2012-03-09 | 2012-07-04 | 陕西唐华能源有限公司 | 复合相变立体式led散热器 |
| CN103277767A (zh) * | 2013-06-01 | 2013-09-04 | 东莞金龙电子有限公司 | 鳍片式led散热器 |
| CN103586576A (zh) * | 2013-10-12 | 2014-02-19 | 苏州嘉德鲁机电科技有限公司 | 全封闭相变式散热器的制造方法 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544344A (zh) * | 2012-03-09 | 2012-07-04 | 陕西唐华能源有限公司 | 复合相变立体式led散热器 |
| CN102544344B (zh) * | 2012-03-09 | 2014-06-04 | 陕西唐华能源有限公司 | 复合相变立体式led散热器 |
| CN103277767A (zh) * | 2013-06-01 | 2013-09-04 | 东莞金龙电子有限公司 | 鳍片式led散热器 |
| CN103586576A (zh) * | 2013-10-12 | 2014-02-19 | 苏州嘉德鲁机电科技有限公司 | 全封闭相变式散热器的制造方法 |
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