CN1818456B - 发光二极管灯泡 - Google Patents

发光二极管灯泡 Download PDF

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CN1818456B
CN1818456B CN2006100070758A CN200610007075A CN1818456B CN 1818456 B CN1818456 B CN 1818456B CN 2006100070758 A CN2006100070758 A CN 2006100070758A CN 200610007075 A CN200610007075 A CN 200610007075A CN 1818456 B CN1818456 B CN 1818456B
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hollow core
housing
circuit board
printed circuit
heat
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CN1818456A (zh
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C·M·库谢恩
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Osram Sylvania Inc
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    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F16K31/602—Pivoting levers, e.g. single-sided
    • 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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • 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
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • 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
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • 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
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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]
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/30—Fog lights
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/35—Brake lights
    • 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)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种LED光源具有带有中空凸出的芯的壳体。所述芯围绕纵轴被布置。印刷电路板在芯端处封闭壳体的开口端，并且具有围绕其中心在操作上固定的多个LED。具有壁厚T的光导被设置在芯内且具有与多个LED成操作关系的第一端和凸出中空芯的第二端。第一反射器被连接至光导的第二端。壳体是导热的以形成延伸的和整体的散热器，以及具有延伸的主体部分，所述主体部分优选具有散热片。用于壳体的优选材料是导热塑料。印刷电路板具有导热基板，所述导热基板经直立V型边缘与壳体直接接触。

Description

发光二极管灯泡
相关申请的交叉参考
本申请要求于2005年2月10日提出的临时专利申请第60/651820号的权益。
技术领域
本发明涉及光源，更具体涉及使用发光二极管(LED)的光源，以及更具体涉及使用在汽车领域中的光源，譬如头灯、尾灯、停车灯、雾灯、方向指示灯等。进一步更具体地，它涉及封装的这种光源，以更少成本获得工业上可接受的互换性，因为减少必需的部件的数量。
背景技术
在过去，多数汽车光源涉及白炽灯泡的使用。尽管工作良好且价钱便宜，但这些灯泡具有相对短的寿命，当然，使用的细灯丝一直因振动而损坏。
近来，某些应用，特别是停车灯已经被LED取代。这些固态光源具有难以置信的100,000小时范围内的使用寿命，并且不受振动故障的影响。然而，这些LED源被硬连线在它们合适的位置，这增加了安装的成本。因此，假如能够给LED光源提供具有白炽光源的安装便易性，相对现有技术中将是一个进步。在现有技术中另一进步将是，假如能够给LED光源提供实现代替前面提到白炽光源的工业可接受的互换性标准。
这种光源已经被开发，有时它们使用与光纤或其它光导结合的LED，从而以想要的方式会聚多个LED的光或扩散所述光。一个这种光源在于2004年12月20日提出的待审查专利申请No.10/899,546中(律师案卷号04-1-717)，并且被转让给本发明的受让人。后提到的光源使用与同样多个LED成一对一关系的多个光导。尽管这种布置工作良好，但它是昂贵的且要求大量部件，所有这些部件要求相当准确对齐。近来，如公开在于2005年2月15日提出并且被转让给本发明的受让人的共同未决专利申请11/058,304中，开发了一种使用简化形式的光导和LED的光源。在现有技术中进步将是，假如部件的数量减少，光源的质量甚至没有受到影响。这种部件减少对于保持有竞争力的成本是关键的。
发明内容
因此，本发明的目的是消除现有技术的缺陷。
本发明的另一目的是增强LED光源。
本发明的又一目的是降低LED光源的成本。
在本发明的一个方面，使用一种LED光源实现这些目的，所述LED光源具有壳体；从所述壳体凸出的中空芯，所述中空芯围绕纵轴布置；印刷电路板，该印刷电路板在所述中空芯的一端封闭所述壳体且具有围绕其中心在操作上固定至它的多个LED；具有主体的光导，所述主体具有给定壁厚该光导被设置在所述中空芯中且具有与所述多个LED成操作关系的第一端和凸出所述中空芯的第二端；连接至所述光导的所述第二端的第一反射器；其中改进包括所述壳体是导热的以形成延伸的和整体的散热器，以及所述印刷电路板具有导热基板，所述导热基板与所述壳体直接接触且用于封闭壳体。
部件的数量被减少，从而所述光源的成本被极大地改善。
附图说明
图1是依据本发明实施例的光源的透视图；和
图2是所述光源的剖面、正视图。
具体实施方式
为了更好地理解本发明，以及其它和另外的目的、优点及性能，请参考下面结合上述附图的说明和附加的权利要求。
现在严格具体参考附图，在图1中示出具有壳体12的LED光源10，中空芯14从所述壳体12中伸出。中空芯14围绕纵轴16设置。电路板18在中空芯14的一端封闭壳体12的开口端19并且具有可围绕其中心在操作上固定至它的多个LED 20，所述电路板18可以是具有附连至其上的柔性印刷电路板18b的铝弯曲片18a。具有给定壁厚T的主体的光导22被布置在中空芯14中且具有与多个LED成操作关系的第一端25和伸出中空芯14的第二端26。第一反射器28被连接至所述光导22的第二端26。
壳体12是导热的以形成延伸的和整体的散热器，并且具有延伸的主体部分50，所述主体部分50优选具有热辐射片52。用于所述壳体12的优选材料是导热塑料，譬如Cool Polymers E3603导热聚酰胺。印刷电路板18具有导热基板30，所述导热基板30经直立V型边缘32直接与壳体12相接触。
所述V型边缘被张紧以与壳体12的开口端19的内壁19a压配合。优选地，印刷电路板由折叠(flex-on)铝形成。
印刷电路板18的***使板上电路与电引入线54(仅显示其中之一)挤压接触，所述引入线54被设置在连接器56中，用于从外部电源向LED供电，从而不需要焊接。
把印刷电路板18用作壳体12的封闭机构，进一步省去了单独的封闭部件和O形环。除了用于连接外封闭部件的必要操作之外，省去现有技术的所有组成部分。
使用所述壳体自身作为延伸的散热器还减少了部件数量，以及光源的重量。
尽管显示和说明了目前认为是本发明的优选实施例，本领域技术人员可以理解，在不脱离由附加的权利要求书限定的本发明范围的条件下，可以实现各种变化和改变。

Claims (3)

1.一种发光二极管光源，具有壳体；所述壳体形成有中空芯，所述中空芯围绕纵轴布置；印刷电路板，其在所述中空芯的一端封闭所述壳体且具有围绕该印刷电路板的中心在操作上固定到该印刷电路板上的多个发光二极管；具有主体的光导，所述主体具有给定壁厚，该光导设置在所述中空芯中且具有与所述多个发光二极管成操作关系的第一端和凸出所述中空芯的第二端；连接至所述光导的所述第二端的第一反射器；
改进包括：
所述壳体是导热的以形成延伸的和整体的散热器，所述壳体具有延伸的主体部分，所述主体部分整体地具有热辐射片，并且所述印刷电路板具有与所述壳体直接接触的导热基板，其中所述导热基板具有直立的边缘，其是从导热基板的边缘部分从导热基板的主体上折起直立以形成折起直立的边缘。
2.依据权利要求1的发光二极管光源，其中所述边缘采用倒V形状。
3.依据权利要求2的发光二极管光源，其中所述边缘呈倒V形并且被张紧以与所述壳体压配合。
CN2006100070758A 2005-02-10 2006-02-10 发光二极管灯泡 Active CN1818456B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US65182005P 2005-02-10 2005-02-10
US60/651820 2005-02-10
US11/109,917 US7092612B1 (en) 2005-02-10 2005-04-20 LED bulb
US11/109917 2005-04-20

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CN1818456A CN1818456A (zh) 2006-08-16
CN1818456B true CN1818456B (zh) 2010-09-01

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US (1) US7092612B1 (zh)
EP (1) EP1691130B1 (zh)
JP (1) JP4921803B2 (zh)
KR (1) KR101238531B1 (zh)
CN (1) CN1818456B (zh)
CA (1) CA2529399C (zh)
ES (1) ES2378183T3 (zh)

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CN1818456A (zh) 2006-08-16
US7092612B1 (en) 2006-08-15
CA2529399A1 (en) 2006-08-10
ES2378183T3 (es) 2012-04-09
US20060177193A1 (en) 2006-08-10
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JP4921803B2 (ja) 2012-04-25
EP1691130A1 (en) 2006-08-16

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