CN108302344B - 发光二极管灯泡及车灯模组 - Google Patents

发光二极管灯泡及车灯模组 Download PDF

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CN108302344B
CN108302344B CN201610809916.0A CN201610809916A CN108302344B CN 108302344 B CN108302344 B CN 108302344B CN 201610809916 A CN201610809916 A CN 201610809916A CN 108302344 B CN108302344 B CN 108302344B
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light
circuit board
driving circuit
emitting diode
light source
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CN108302344A (zh
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陈学龙
林世民
蔡钰玮
张忠民
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Rongchuang Energy Technology Co ltd
Zhanjing Technology Shenzhen Co Ltd
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Rongchuang Energy Technology Co ltd
Zhanjing Technology Shenzhen Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19Attachment of light sources or lamp holders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141Light emitting diodes [LED]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19Attachment of light sources or lamp holders
    • F21S41/192Details of lamp holders, terminals or connectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13Signalling 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
    • F21S43/14Light emitting diodes [LED]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19Attachment of light sources or lamp holders
    • F21S43/195Details of lamp holders, terminals or connectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20Signalling 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
    • F21S43/26Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2105/00Planar light sources
    • F21Y2105/10Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements
    • F21Y2105/12Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/20Light sources with three-dimensionally disposed light-generating elements on convex supports or substrates, e.g. on the outer surface of spheres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/90Light sources with three-dimensionally disposed light-generating elements on two opposite sides of supports or substrates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

一种发光二极管灯泡,包括一连接座以及位于所述连接座一端的一光源座,所述安装台包括一远离所述连接座的顶面,所述光源座包括一安装台以及设置于所述安装台上的一发光二极管单元,所述发光二极管单元包括一电路板、设置于所述电路板上的多个发光二极管以及以及至少一与所述发光二极管单元电性连接的驱动器,所述电路板包括用于安装所述驱动器的一驱动线路板部以及由所述驱动线路板部直接弯折而成的用于安装所述发光二极管的一光源安装板部,所述发光二极管分别安装于所述光源安装板部的各个表面,所述驱动线路板部大致呈平板状,其固定于所述顶面,所述光源安装板部由所述驱动线路板部向远离所述驱动线路板部的方向伸出。

Description

发光二极管灯泡及车灯模组
技术领域
本发明涉及半导体照明领域,尤其涉及一种发光二极管灯泡以及具有该发光二极管灯泡的车灯模组。
背景技术
发光二极管(light emitting diode,LED)作为一种高效的发光源,具有环保、省电、寿命长等诸多特点已经被广泛的运用于各种领域。LED固态光源由于能产生更高的亮度,可以实现室内外照明,也将取代白炽灯和荧光灯等现有光源,获得更加广泛的运用。
发光二极管灯泡通常包括一座体、设置于座体底部的灯头、设置于座体顶部的光源板以及与座体连接的灯罩。所述光源板包括一基板及设置于该基板上的多个发光二极管(Light Emitting Diode,LED)。由于发光二极管在工作时会产生热量,因此基板需具有导热性能以将该热量传导出去。然而,由于灯光二极管灯泡尺寸的限制,现有的基板面积一般都不大,使得所述发光二极管的散热效果不佳。
发明内容
有鉴于此,有必要提供一种发光二极管灯泡,能够解决以上问题。
另,还有必要提供一种具有上述发光二极管的车灯模组。
本发明提供一种发光二极管灯泡,包括一连接座以及位于所述连接座一端的一光源座,所述安装台包括一远离所述连接座的顶面,所述光源座包括一安装台以及设置于所述安装台上的一发光二极管单元,所述发光二极管单元包括一电路板、设置于所述电路板上的多个发光二极管以及以及至少一与所述发光二极管单元电性连接的驱动器,所述电路板包括用于安装所述驱动器的一驱动线路板部以及由所述驱动线路板部直接弯折而成的用于安装所述发光二极管的一光源安装板部,所述发光二极管分别安装于所述光源安装板部的各个表面,所述驱动线路板部大致呈平板状,其固定于所述顶面,所述光源安装板部由所述驱动线路板部向远离所述驱动线路板部的方向伸出。
优选的,所述电路板的横截面大致为T型,所述光源安装板部由所述驱动线路板部的一端直接弯折而成,所述光源安装板沿大致平行于所述驱动线路板部的方向延伸至所述驱动线路板部的中心再向远离所述驱动线路板部的方向垂直伸出,所述发光二极管分别安装于所述光源安装板部的相对的两个表面。
优选的,所述光源安装板部的横截面大致为三角形,其包括由所述驱动线路板部的中心区域直接弯折而形成的向远离所述驱动线路板部的方向伸出的两个侧壁,所述两个侧壁之间形成一预定角度并在其顶端相连接,所述发光二极管分别安装于所述两个侧壁的外表面,所述两个侧壁与所述驱动线路板部之间共同围设形成一收容空间,所述收容空间内设有散热材料。
优选的,所述光源安装板部的横截面大致为多边形,其包括由所述驱动线路板部的中心区域直接弯折而形成的向远离所述驱动线路板部的方向伸出的多个侧壁,所述侧壁首尾相连且每两相邻的侧壁之间形成一预定角度,所述发光二极管分别安装于每一侧壁的外表面,所述多个侧壁与所述驱动线路板部之间共同围设形成一收容空间,所述收容空间内设有散热材料。
优选的,所述发光二极管呈规则矩阵排列于所述光源安装板部的每一表面,所述发光二极管彼此分散。
优选的,所述发光二极管在所述光源安装板部的每一表面远离所述驱动线路板部的顶端的排列密度小于所述发光二极管在所述表面临近所述驱动线路板部的底端的排列密度。
优选的,所述电路板为金属基印刷电路板。
优选的,所述发光二极管单元通过表面贴装技术、芯片级封装技术以及板上芯片封装技术中的其中一种安装于所述安装台上。
优选的,所述安装台由所述连接座的一端一体延伸形成。
本发明还提供一种车灯模组,包括一发光二极管灯泡,所述发光二极管灯泡包括一连接座以及位于所述连接座一端的一光源座,所述安装台包括一远离所述连接座的顶面,所述光源座包括一安装台以及设置于所述安装台上的一发光二极管单元,所述发光二极管单元包括一电路板、设置于所述电路板上的多个发光二极管以及以及至少一与所述发光二极管单元电性连接的驱动器,所述电路板包括用于安装所述驱动器的一驱动线路板部以及由所述驱动线路板部直接弯折而成的用于安装所述发光二极管的一光源安装板部,所述发光二极管分别安装于所述光源安装板部的各个表面,所述驱动线路板部大致呈平板状,其固定于所述顶面,所述光源安装板部由所述驱动线路板部向远离所述驱动线路板部的方向伸出。
本发明的发光二极管灯泡中,所述电路板包括直接弯折而形成的驱动线路板部和光源安装板部,因此,所述电路板的散热面积增大,从而有利于提高所述发光二极管的散热效率。
附图说明
图1为本发明较佳实施例的发光二极管灯泡的分解示意图。
图2为图1所示的发光二极管灯泡的发光二极管单元的结构示意图。
图3为另一实施例中的发光二极管灯泡的发光二极管单元的结构示意图。
图4为又一实施例中的发光二极管灯泡的发光二极管单元的结构示意图。
主要元件符号说明
发光二极管灯泡 100
连接座 10
灯头 20
光源座 30
安装台 31
顶面 311
发光二极管单元 32
电路板 321
驱动线路板部 3211
光源安装板部 3212
侧壁 3213
收容空间 3214
发光二极管 322
驱动器 323
灯罩 40
密闭空间 41
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
请参阅图1,本发明较佳实施例提供一种发光二极管灯泡100,其可应用于一车灯模组(图未示)中。所述发光二极管灯泡100包括一连接座10、位于所述连接座10一端的一灯头20、位于所述连接座10远离所述灯头20的另一端的一光源座30、以及与所述连接座10连接并罩设所述光源座30的一灯罩40。
其中,所述连接座10的材质为铜。所述灯头20设置于所述连接座10的底部并用于与一外部电源(图未示)连接。可以理解地,所述灯头20的周缘上还可以进一步设置螺纹(图未示)以方便与所述外部电源插座配合。
所述光源座30包括一安装台31以及设置于所述安装台31上的一发光二极管单元32。可以理解的,所述发光二极管单元32可通过表面贴装技术(Surface MountedTechnology,SMT)、芯片级封装技术(Chip Scale Package,CSP)或板上芯片封装技术(chip-on-board,COB)安装于所述光源座30的安装台31上。在本实施例中,所述安装台31由散热良好的材料(如铝)制成以用于对发光二极管单元32散热。所述安装台31包括一远离所述连接座10的顶面311。
所述发光二极管单元32包括一电路板321、设置于所述电路板321上的多个发光二极管322以及至少一与所述发光二极管单元32电性连接的驱动器323。所述电路板321包括用于安装所述驱动器323的一驱动线路板部3211以及由所述驱动线路板部3211直接弯折而成的用于安装所述发光二极管322的一光源安装板部3212。其中,所述发光二极管322分别安装于所述光源安装板部3212的各个表面,使得所述发光二极管321所发出的光线能够获得接近全角的出光效果。所述驱动线路板部3211大致呈平板状,其固定于所述安装台31的顶面311。所述光源安装板部3212由所述驱动线路板部3211向远离所述驱动线路板部3211的方向伸出。所述驱动器323电性连接于所述灯头20,还通过所述驱动线路板部3211电性连接于所述发光二极管单元32。所述驱动器323用于将所述外部电源(图未示)通过所述灯头20连接至所述发光二极管322,从而提供所述发光二极管322工作所需的电能。
由于所述电路板321包括直接弯折而形成的驱动线路板部3211和光源安装板部3212,因此,所述电路板321的散热面积增大,从而有利于提高所述发光二极管322的散热效率。其次,所述发光二极管322与所述驱动器323的连接线路可一起布局于所述电路板321上,有利于提高制作效率。在本实施例中,所述电路板321为金属基印刷电路板,更具体的,所述电路板321为铝基印刷电路板或铜基印刷电路板,如此,所述发光二极管322的热量能够经由所述电路板321更加快速散发至所述安装台31。
请参阅图2,在本实施例中,所述电路板321的横截面大致为T型,所述光源安装板部3212由所述驱动线路板部3211的一端直接弯折而成,所述光源安装板沿大致平行于所述驱动线路板部3211的方向延伸至所述驱动线路板部3211的中心再向远离所述驱动线路板部3211的方向垂直伸出。所述发光二极管322分别安装于所述光源安装板部3212的相对的两个表面。
请参阅图3,在另一实施例中,所述光源安装板部3212的横截面大致为三角形,其包括由所述驱动线路板部3211的中心区域直接弯折而形成的向远离所述驱动线路板部3211的方向伸出的两个侧壁3213,所述两个侧壁3213之间形成一预定角度并在其顶端相连接。所述发光二极管322分别安装于所述两个侧壁3213的外表面。其中,所述两个侧壁3213与所述驱动线路板部3211之间共同围设形成一收容空间3214,所述收容空间3214内设有散热材料(图未示),用于将所述对光源安装板部3212上来自所述发光二极管322的热量传输至所述安装台31。其中,所述散热材料可为纳米碳或类钻碳。
请参阅图4,在又一实施例中,所述光源安装板部3212的横截面大致为多边形,其包括由所述驱动线路板部3211的中心区域直接弯折而形成的向远离所述驱动线路板部3211的方向伸出的多个侧壁3213,所述侧壁3213首尾相连且每两相邻的侧壁3213之间形成一预定角度。所述发光二极管322分别安装于每一侧壁3213的外表面。其中,所述多个侧壁3213与所述驱动线路板部3211之间共同围设形成一收容空间3214,所述收容空间3214内同样设有所述散热材料。
可以理解,所述光源安装板部3212相较于所述驱动线路板部3211的弯折角度可根据需求进行变更,从而改变所述发光二极管321的出光角度。
可以理解,所述发光二极管322在光源安装板部3212的每一表面的排列方式还可根据需求进行变更,从而进一步改变所述发光二极管321的出光角度。在本实施方式中,所述发光二极管322呈规则矩阵排列于所述光源安装板部3212的每一表面,所述发光二极管322彼此分散,其还有利于分散所述发光二极管322的热量从而加快散热。当然,所述发光二极管322在所述光源安装板部3212的每一表面上的排列密度还可渐变式变化,如,所述发光二极管322在所述光源安装板部3212的每一表面远离所述驱动线路板部3211的顶端的排列密度小于所述发光二极管322在所述表面临近所述驱动线路板部3211的底端的排列密度。
可以理解,所述连接座10和安装台31的内部设有空隙(图未示),以供连接所述灯头20与驱动器323的导线(图未示)穿过。
在其它实施例中,所述安装台31是由所述连接座10的一端一体延伸形成,即所述连接座10和安装台31一体成型,所述安装台31作为所述连接座10的一部分用于设置所述发光二极管单元32和驱动器323。
所述灯罩40套接于所述连接座10上,从而与所述连接座10共同围设形成一收容所述光源座30的密闭空间41。在本实施例中,所述灯罩40直接卡合于所述连接座10。所述灯罩40可由透光性能较好的材质构成,比如聚碳酸酯、玻璃等。
可以理解的是,对于本领域的普通技术人员来说,可以根据本发明的技术构思做出其它各种相应的改变与变形,而所有这些改变与变形都应属于本发明权利要求的保护范围。

Claims (7)

1.一种发光二极管灯泡,包括一连接座以及位于所述连接座一端的一光源座,其特征在于,所述光源座包括一安装台以及设置于所述安装台上的一发光二极管单元,所述安装台包括一远离所述连接座的顶面,所述发光二极管单元包括一电路板、设置于所述电路板上的多个发光二极管以及至少一与所述发光二极管单元电性连接的驱动器,所述电路板的横截面为T型,所述电路板包括用于安装所述驱动器的一驱动线路板部以及由所述驱动线路板部的一端直接弯折而成的用于安装所述发光二极管的一光源安装板部,所述光源安装板沿平行于所述驱动线路板部的方向延伸至所述驱动线路板部的中心再向远离所述驱动线路板部的方向垂直伸出,所述发光二极管分别安装于所述光源安装板部的相对的两个表面,所述驱动线路板部呈板状,其固定于所述顶面,所述光源安装板部由所述驱动线路板部向远离所述安装台的方向伸出。
2.如权利要求1所述的发光二极管灯泡,其特征在于,所述发光二极管呈规则矩阵排列于所述光源安装板部的每一表面,所述发光二极管彼此分散。
3.如权利要求1所述的发光二极管灯泡,其特征在于,所述发光二极管在所述光源安装板部的每一表面远离所述驱动线路板部的顶端的排列密度小于所述发光二极管在所述表面临近所述驱动线路板部的底端的排列密度。
4.如权利要求1所述的发光二极管灯泡,其特征在于,所述电路板为金属基印刷电路板。
5.如权利要求1所述的发光二极管灯泡,其特征在于,所述发光二极管单元通过表面贴装技术、芯片级封装技术以及板上芯片封装技术中的其中一种安装于所述安装台上。
6.如权利要求1所述的发光二极管灯泡,其特征在于,所述安装台由所述连接座的一端一体延伸形成。
7.一种车灯模组,包括一发光二极管灯泡,所述发光二极管灯泡包括一连接座以及位于所述连接座一端的一光源座,其特征在于,所述光源座包括一安装台以及设置于所述安装台上的一发光二极管单元,所述安装台包括一远离所述连接座的顶面,所述发光二极管单元包括一电路板、设置于所述电路板上的多个发光二极管以及至少一与所述发光二极管单元电性连接的驱动器,所述电路板的横截面为T型,所述电路板包括用于安装所述驱动器的一驱动线路板部以及由所述驱动线路板部的一端直接弯折而成的用于安装所述发光二极管的一光源安装板部,所述光源安装板沿平行于所述驱动线路板部的方向延伸至所述驱动线路板部的中心再向远离所述驱动线路板部的方向垂直伸出,所述发光二极管分别安装于所述光源安装板部的相对的两个表面,所述驱动线路板部呈板状,其固定于所述顶面,所述光源安装板部由所述驱动线路板部向远离所述安装台的方向伸出。
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