CN218819898U - 高效散热的汽车车灯 - Google Patents
高效散热的汽车车灯 Download PDFInfo
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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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
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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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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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
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
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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
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
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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
- F21V19/00—Fastening of light sources or lamp holders
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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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
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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
- 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
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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
- 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
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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Abstract
本实用新型提供一种高效散热的汽车车灯,包括:发光单元;基材,所述基材的外轮廓为圆锥台结构,所述圆锥台结构设置有散热内腔,所述发光单元围绕所述圆锥台结构的周向上均匀铺设;散热机构,所述散热机构包括散热器以及一端与所述散热器相连的散热棒,所述散热棒设置于所述散热内腔中;本实用新型的高效散热的汽车车灯通过沿基材周向布置的发光单元以及插设于基材散热内腔的散热棒实现了汽车车灯的高效散热以及基材周向上均匀出光,解决了现有技术中LED车灯散热能力不强及出射光线不均匀的问题。
Description
技术领域
本实用新型涉及汽车车灯和照明技术领域,特别是涉及一种高效散热的汽车车灯。
背景技术
目前,LED汽车车灯已经逐步在替代传统卤素灯、氙气灯,LED汽车车灯可以实现多种形态灯光,提高亮度,改造和替换传统光源,提高夜间驾车舒适度和安全性。现有技术的LED汽车车灯存在两点问题:首先,由于LED光源的亮度跟其温度相关,据研究,LED光源温度每上升10℃,其发光效率大约下降3%,且如果温度超过LED光源的温度极限,将会导致失效,甚至造成永久性损坏,现有技术的LED光源亮度受限于其散热能力;其次,LED光源为分布式光源,其发出的光线不均匀,当现有技术的LED光源装入车灯总成后并在使用过程中发生偏移时,使光线随机变的发散,从而影响整个车灯的光型,影响车灯的正常使用。
实用新型内容
鉴于以上所述现有技术的缺点,本实用新型要解决的技术问题在于提供一种高效散热的汽车车灯,解决现有技术中LED车灯散热能力不强及出射光线不均匀的问题。
为了解决上述技术问题,本实用新型提供一种高效散热的汽车车灯,包括:
发光单元;
基材,所述基材的外轮廓为圆锥台结构,所述圆锥台结构设置有散热内腔,所述发光单元围绕所述圆锥台结构的周向上均匀铺设;
散热机构,所述散热机构包括散热器以及一端与所述散热器相连的散热棒,所述散热棒设置于所述散热内腔中。
优选的,所述散热器包括散热座以及一体成型于散热座的散热鳍片,所述散热鳍片沿所述散热座周向布置,所述散热座的中心开设有连接孔,所述散热棒的连接端插设于所述连接孔内,所述散热鳍片可以增加散热器跟外界的接触面积,提高散热效率。
优选的,所述连接孔的孔壁与所述基材紧密贴合,所述基材与散热器直接接触,基材的热量可以通过散热座向散热器进行热传递,进一步提高了散热效率。
优选的,所述散热棒与所述散热内腔的间隙填充有硅脂,提高了整体散热性能。
优选的,所述高效散热的汽车车灯还包括安装卡盘,所述安装卡盘套设于所述基材上并与所述散热鳍片抵接,所述安装卡盘用以将本实用新型的高效散热的汽车车灯安装在汽车车灯总成上。
优选的,所述散热棒的连接端以及基材的对应位置上设置有线槽,且所述连接孔的侧壁开设有线孔,所述线槽以及线孔用以满足电源线的走线需求。
优选的,所述高效散热的汽车车灯还包括电源线,所述电源线穿过所述线孔以及所述线槽与所述发光单元相连,所述电源线用以为发光单元供电,且线槽以及线孔的设置使得电源线走线更加的合理整洁。
优选的,所述基材采用陶瓷制成,所述陶瓷的绝缘性保障了本实用新型高效散热的汽车车灯在使用过程电性安全;同时陶瓷还具有良好的散热能力以及耐高温和耐腐蚀等显著特点,同时在使用寿命方面,同等情况下陶瓷是金属的几倍甚至几十倍。
优选的,所述散热棒采用铝或铜制成,铝或铜具有出色的导热性能,能够快速的将热量同外界进行热交换,满足本实用新型的散热需求。
优选的,所述散热器采用铝或铜制成,铝或铜具有出色的导热性能,能够快速的将热量同外界进行热交换,满足本实用新型的散热需求。
如上所述,本实用新型的高效散热的汽车车灯,具有以下有益效果:本实用新型的高效散热的汽车车灯在使用时,所述发光单元产生的热量经由基材传递到散热棒,并由散热棒传递给散热器,如此设计一方面均匀铺设的发光单元可以将热量均匀的传递到散热内腔,热量分布越均匀,散热效率越高;其次散热棒设置于散热内腔中,最大程度上拓展了散热棒与散热内腔的接触面积,提高了热传递的效率;有因为发光单元沿圆锥台结构周向布置,使得圆锥台结构周向上的出射光线均匀分布;本实用新型的高效散热的汽车车灯通过沿基材周向布置的发光单元以及插设于基材散热内腔的散热棒实现了汽车车灯的高效散热以及基材周向上均匀出光,解决了现有技术中LED车灯散热能力不强及出射光线不均匀的问题。
附图说明
图1显示为本实用新型的高效散热的汽车车灯的爆炸图;
图2显示为本实用新型的高效散热的汽车车灯的示意图;
图3显示为本实用新型的高效散热的汽车车灯的另一视角的示意图;
图4显示为本实用新型的高效散热的汽车车灯的散热路径图。
元件标号说明
1 发光单元
2 基材
21 散热内腔
3 散热器
31 散热座
32 散热鳍片
33 连接孔
4 散热棒
41 连接端
5 安装卡盘
6 电源线
61 线槽
具体实施方式
以下由特定的具体实施例说明本实用新型的实施方式,熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本实用新型的其他优点及功效。
须知,本说明书所附图中所绘示的结构、比例、大小等,均仅用以配合说明书所揭示的内容,以供熟悉此技术的人士了解与阅读,并非用以限定本实用新型可实施的限定条件,故不具技术上的实质意义,任何结构的修饰、比例关系的改变或大小的调整,在不影响本实用新型所能产生的功效及所能达成的目的下,均应仍落在本实用新型所揭示的技术内容所能涵盖的范围内。同时,本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语,亦仅为便于叙述的明了,而非用以限定本实用新型可实施的范围,其相对关系的改变或调整,在无实质变更技术内容下,当亦视为本实用新型可实施的范畴。
如图所示,本实用新型提供一种高效散热的汽车车灯,包括:
发光单元1;
基材2,所述基材2的外轮廓为圆锥台结构,所述圆锥台结构设置有散热内腔21,所述发光单元1围绕所述圆锥台结构的周向上均匀铺设;
散热机构,所述散热机构包括散热器3以及一端与所述散热器3相连的散热棒4,所述散热棒4设置于所述散热内腔21中。
本实用新型的高效散热的汽车车灯在使用时,所述发光单元1产生的热量经由基材2传递到散热棒4,并由散热棒4传递给散热器3,如此设计一方面均匀铺设的发光单元1可以将热量均匀的传递到散热内腔21,热量分布越均匀,散热效率越高;其次散热棒4设置于散热内腔21中,最大程度上拓展了散热棒4与散热内腔21的接触面积,提高了热传递的效率;有因为发光单元1沿圆锥台结构周向布置,使得圆锥台结构周向上的出射光线均匀分布。
在本实施例中,如图1以及图2所示,所述散热器3包括散热座31以及一体成型于散热31的散热鳍片32,所述散热鳍片32沿所述散热座31周向布置,所述散热座31的中心开设有连接孔33,所述散热棒4的连接端41插设于所述连接孔33内,所述散热鳍片32可以增加散热器3跟外界的接触面积,提高散热效率;更进一步的,在本实施例中,所述散热座31的外轮廓为圆柱体,所述散热鳍片32沿圆柱体侧面周向布置,且所述散热鳍片32的外轮廓也为圆柱体,如此可以增加散热鳍片32与外界的接触面积,提高散热效率;再进一步的,在本实施例中,所述散热棒4的连接端41以及基材2的对应位置上设置有线槽61,且所述连接孔33的侧壁开设有线孔,所述线槽61以及线孔用以满足电源线6的走线需求;同时,所述连接孔33的轮廓为内侧面被切平的圆孔,对应所述散热棒4的连接端41的外轮廓为侧面被切平的圆柱,如此防止散热棒4的连接端41在连接孔33中转动,同时也方便线孔及线槽61的定位。
在本实施例中,所述发光组件包括发光二极管,发光二极管包括普通单色发光二极管、高亮度发光二极管、超高亮度发光二极管、变色发光二极管、闪烁发光二极管、电压控制型发光二极管、红外发光二极管和负阻发光二极管等。
在本实施例中,如图1以及图2所示,所述连接孔33的孔壁与所述基材2紧密贴合,所述基材2与散热器3直接接触,基材2的热量可以通过散热座31向散热器3进行热传递,进一步提高了散热效率;如此在本实施例中,如图4所示,所述散热路径包括两条,一是热量由发光单元1传递给基材2,再由基材2直接传递给散热器3进行散热,二是热量由发光单元1传递给基材2,再由基材2传递给散热棒4,接着再传递给散热器3进行散热,较少的导热路径使得导热的速度更快。
在本实施例中,所述散热棒4与所述散热内腔21的间隙填充有硅脂,提高了整体散热性能。
在本实施例中,如图1、图2以及图3所示,所述高效散热的汽车车灯还包括安装卡盘5,所述安装卡盘5套设于所述基材2上并与所述散热鳍片32抵接,所述安装卡盘5用以将本实施例的高效散热的汽车车灯安装在汽车车灯总成上;进一步的,在本实施例中,如图1以及图2所示,所述安装卡盘5上还设置有安装螺纹,用以配合汽车车灯总成上的结构配合组装。
在本实施例中,如图1、图2以及图3所示,所述高效散热的汽车车灯还包括电源线6,所述电源线6穿过所述线孔以及所述线槽61与所述发光单元1相连,所述电源线6用以为发光单元1供电,且线槽61以及线孔的设置使得电源线6走线更加的合理整洁;同时在本实施例中,所述基材2上设置有两个焊点与所述电源线6连接。
在本实施例中,所述基材2采用陶瓷制成,所述陶瓷的绝缘性保障了本实施例高效散热的汽车车灯在使用过程电性安全;同时陶瓷还具有良好的散热能力以及耐高温和耐腐蚀等显著特点,同时在使用寿命方面,同等情况下陶瓷是金属的几倍甚至几十倍;在本实施例中,采用独特的贴片工艺将发光二极管贴附于陶瓷上,减少了基板固定件,也大大减少了组装工艺。
在本实施例中,所述高效散热的汽车车灯还包括有散热风扇,所述散热风扇用以加速散热器3周围空气流动,提高散热效率。
在本实施例中,所述散热棒4采用铝或铜制成,铝或铜具有出色的导热性能,能够快速的将热量同外界进行热交换,满足本实施例的散热需求。
在本实施例中,所述散热器3采用铝或铜制成,铝或铜具有出色的导热性能,能够快速的将热量同外界进行热交换,满足本实施例的散热需求。
综上所述,本实施例的高效散热的汽车车灯通过沿基材2周向布置的发光单元1以及插设于基材2散热内腔21的散热棒4实现了汽车车灯的高效散热以及基材2周向上均匀出光,解决了现有技术中LED车灯散热能力不强及出射光线不均匀的问题。所以,本实施例有效克服了现有技术中的种种缺点而具高度产业利用价值。
上述实施例仅例示性说明本实施例的原理及其功效,而非用于限制本实施例。任何熟悉此技术的人士皆可在不违背本实施例的精神及范畴下,对上述实施例进行修饰或改变。因此,举凡所属技术领域中具有通常知识者在未脱离本实施例所揭示的精神与技术思想下所完成的一切等效修饰或改变,仍应由本实施例的权利要求所涵盖。
Claims (10)
1.一种高效散热的汽车车灯,其特征在于,包括:
发光单元(1);
基材(2),所述基材(2)的外轮廓为圆锥台结构,所述圆锥台结构设置有散热内腔(21),所述发光单元(1)围绕所述圆锥台结构的周向上均匀铺设;
散热机构,所述散热机构包括散热器(3)以及一端与所述散热器(3)相连的散热棒(4),所述散热棒(4)设置于所述散热内腔(21)中。
2.根据权利要求1所述的高效散热的汽车车灯,其特征在于:所述散热器(3)包括散热座(31)以及一体成型于散热座(31)的散热鳍片(32),所述散热鳍片(32)沿所述散热座(31)周向布置,所述散热座(31)的中心开设有连接孔(33),所述散热棒(4)的连接端(41)插设于所述连接孔(33)内。
3.根据权利要求2所述的高效散热的汽车车灯,其特征在于:所述连接孔(33)的孔壁与所述基材(2)紧密贴合。
4.根据权利要求1所述的高效散热的汽车车灯,其特征在于:所述散热棒(4)与所述散热内腔(21)的间隙填充有硅脂。
5.根据权利要求2所述的高效散热的汽车车灯,其特征在于:所述高效散热的汽车车灯还包括安装卡盘(5),所述安装卡盘(5)套设于所述基材(2)上并与所述散热鳍片(32)抵接。
6.根据权利要求2所述的高效散热的汽车车灯,其特征在于:所述散热棒(4)的连接端(41)以及基材(2)的对应位置上设置有线槽(61),且所述连接孔(33)的侧壁开设有线孔。
7.根据权利要求6所述的高效散热的汽车车灯,其特征在于:所述高效散热的汽车车灯还包括电源线(6),所述电源线(6)穿过所述线孔以及所述线槽(61)与所述发光单元(1)相连。
8.根据权利要求1所述的高效散热的汽车车灯,其特征在于:所述基材(2)采用陶瓷制成。
9.根据权利要求1所述的高效散热的汽车车灯,其特征在于:所述散热棒(4)采用铝或铜制成。
10.根据权利要求1所述的高效散热的汽车车灯,其特征在于:所述散热器(3)采用铝或铜制成。
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