CN201944627U - 一种散热速度快的led发光柱 - Google Patents
一种散热速度快的led发光柱 Download PDFInfo
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- CN201944627U CN201944627U CN2011200306023U CN201120030602U CN201944627U CN 201944627 U CN201944627 U CN 201944627U CN 2011200306023 U CN2011200306023 U CN 2011200306023U CN 201120030602 U CN201120030602 U CN 201120030602U CN 201944627 U CN201944627 U CN 201944627U
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
- H05K3/0061—Laminating printed circuit boards onto other substrates, e.g. metallic substrates onto a metallic substrate, e.g. a heat sink
-
- 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
- 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/90—Light sources with three-dimensionally disposed light-generating elements on two opposite sides of supports or substrates
-
- 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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/144—Stacked arrangements of planar printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/04—Assemblies of printed circuits
- H05K2201/042—Stacked spaced PCBs; Planar parts of folded flexible circuits having mounted components in between or spaced from each other
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10401—Eyelets, i.e. rings inserted into a hole through a circuit board
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
本实用新型涉及LED灯具技术,尤其涉及一种散热速度快的LED发光柱,其包括有两块PCB基板,两块PCB基板的正面均封装有LED芯片,LED芯片与PCB基板电连接,两块PCB基板的背面互相紧贴固定,且两块PCB基板的背面之间夹置有散热金属片。由于本实用新型的两侧均具有LED芯片,当LED芯片发光时,可实现径向发光,且光线覆盖范围大;而且,本实用新型的散热金属片可以将PCB基板上聚集的热量快速地导走。因此,本实用新型具有光线覆盖范围大、散热速度快的特点。
Description
技术领域
本实用新型涉及LED灯具技术,尤其涉及一种散热速度快的LED发光柱。
背景技术
由于LED (Light Emitting Diode,发光二极管)具有使用寿命长、能耗低、节约能源显著等特点,因此,LED作为光源已广泛地应用于日常生活中,如杯灯、射灯、汽车灯、LED灯泡等LED照明灯具。
目前,LED灯泡一般包括灯头、安装在灯头顶部的灯罩、位于灯头内的电源,灯罩内设置有LED发光柱,LED发光柱与灯头内的电源电连接,当LED发光柱通电发光时,其发出的光线可透过灯罩照射出去,达到照明或装饰的目的。但是,现有技术中LED灯泡的LED发光柱大多是在PCB(印刷电路板)基板上直接焊接封装好的LED,且LED均位于PCB基板的一侧,导致LED发光柱只能单方向发光,光线覆盖范围较小(最大180度),而且,LED工作时产生的热量只是通过PCB基板导走及散发,散热速度较慢,散热效果不好。
发明内容
本实用新型的目的在于针对现有技术的不足而提供一种可径向发光、散热速度快的LED发光柱。
本实用新型的目的通过以下技术措施实现:一种散热速度快的LED发光柱,它包括有两块PCB基板,两块PCB基板的正面均封装有LED芯片,LED芯片与PCB基板电连接,两块PCB基板的背面互相紧贴固定,且两块PCB基板的背面之间夹置有散热金属片。
所述散热金属片为铜片。
所述散热金属片侧面的面积大于PCB基板背面的面积。
所述两块PCB基板的LED芯片的高度相等。
所述PCB基板为散热铝基板。
所述PCB基板的底部设置有插接部。
所述两块PCB基板与散热金属片是通过铆钉固定。
所述两块PCB基板与散热金属片是互相扣接固定。
本实用新型有益效果在于:本实用新型包括有两块PCB基板,两块PCB基板的正面均封装有LED芯片,LED芯片与PCB基板电连接,两块PCB基板的背面互相紧贴固定,且两块PCB基板的背面之间夹置有散热金属片。由于本实用新型的两侧均具有LED芯片,当LED芯片发光时,可实现径向发光,且光线覆盖范围大(可达360度);而且,本实用新型的散热金属片可以将PCB基板上聚集的热量快速地导走。因此,本实用新型具有光线覆盖范围大、散热速度快的特点。
附图说明
图1是本实用新型一种散热速度快的LED发光柱实施例1的结构示意图。
图2是本实用新型一种散热速度快的LED发光柱实施例1的侧视图。
图3是本实用新型一种散热速度快的LED发光柱实施例1的分解示意图。
在图1、图2和图3中包括有:
1——PCB基板 11——插接部
12——铆钉 2——LED芯片
3——散热金属片。
具体实施方式
下面结合附图对本实用新型作进一步的说明。
实施例1
本实用新型的一种LED发光柱,如图1~3所示,其包括有两块PCB基板1,两块PCB基板1的正面均封装有LED芯片2,即LED芯片2直接封装在PCB基板1上,以减小本实用新型的体积及重量,LED芯片2与PCB基板1电连接,使PCB基板1为LED芯片2供电,两块PCB基板1的背面互相紧贴固定,使本实用新型的两侧均具有LED芯片2,当LED芯片2发光时,可实现径向发光,且光线覆盖范围大(可达360度)。
两块PCB基板1的背面之间夹置有散热金属片3,由于LED芯片2工作发光时,会产生大量的热量并聚集在PCB基板1上,所以,散热金属片3可以将PCB基板1上聚集的热量导走。在本实施例中,优选散热金属片3为铜片,因为铜片具有导热率高等优点,可以将PCB基板1上聚集的热量快速地导走,即散热速度较快。当然,所述散热金属片3也可以为其它散热材料制成,只要其具有导热率高等优点即可。
散热金属片3侧面的面积大于PCB基板1背面的面积,即散热金属片3的四周稍凸出于PCB基板1,以增加散热及导热面积。
两块PCB基板1的LED芯片2的高度相等,使本实用新型可以保持同一高度发光,形成点光源,且LED芯片2为1~10W的大功率LED芯片,使本实用新型发光时具有足够的亮度。
PCB基板1为散热铝基板,PCB基板1的底部设置有插接部11,使本实用新型可以插接固定在LED灯泡中。
两块PCB基板1与散热金属片3是通过铆钉12固定,更具体地说,铆钉12穿过两块PCB基板1和散热金属片3,从而将两块PCB基板1和散热金属片3锁紧固定,使散热金属片3与两块PCB基板1的背面紧密地贴在一起,从而增加散热面积,使本实用新型可以增加8~10%的散热速度。
本实用新型可广泛应用于各种LED灯泡中,使LED灯泡具有径向发光、光线覆盖范围大、散热速度快等特点,而且,本实用新型的LED灯泡可以形成类似于传统的钨丝灯的“焰火”效果,从而使应用本实用新型的LED灯泡可以替代传统的钨丝灯,达到照明或装饰的目的。
实施例2
本实用新型的一种散热速度快的LED发光柱的实施例2,本实施例与实施例1的不同之处在于,两块PCB基板1与散热金属片3是互相扣接固定,当然,所述两块PCB基板1与散热金属片3也可以采用其它的固定方式,如粘贴固定,只要其固定效果较好即可。本实施例的其它结构及工作原理与实施例1相同,在此不再赘述。
最后应当说明的是,以上实施例仅用以说明本实用新型的技术方案,而非对本实用新型保护范围的限制,尽管参照较佳实施例对本实用新型作了详细地说明,本领域的普通技术人员应当理解,可以对本实用新型的技术方案进行修改或者等同替换,而不脱离本实用新型技术方案的实质和范围。
Claims (8)
1.一种散热速度快的LED发光柱,其特征在于:它包括有两块PCB基板,两块PCB基板的正面均封装有LED芯片,LED芯片与PCB基板电连接,两块PCB基板的背面互相紧贴固定,且两块PCB基板的背面之间夹置有散热金属片。
2.根据权利要求1所述的散热速度快的LED发光柱,其特征在于:所述散热金属片为铜片。
3.根据权利要求1所述的散热速度快的LED发光柱,其特征在于:所述散热金属片侧面的面积大于PCB基板背面的面积。
4.根据权利要求1所述的散热速度快的LED发光柱,其特征在于:所述两块PCB基板的LED芯片的高度相等。
5.根据权利要求1所述的散热速度快的LED发光柱,其特征在于:所述PCB基板为散热铝基板。
6.根据权利要求1所述的散热速度快的LED发光柱,其特征在于:所述PCB基板的底部设置有插接部。
7.根据权利要求1至6任意一项所述的散热速度快的LED发光柱,其特征在于:所述两块PCB基板与散热金属片是通过铆钉固定。
8.根据权利要求1至6任意一项所述的散热速度快的LED发光柱,其特征在于:所述两块PCB基板与散热金属片是互相扣接固定。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN2011200306023U CN201944627U (zh) | 2011-01-28 | 2011-01-28 | 一种散热速度快的led发光柱 |
PCT/CN2011/072523 WO2012100461A1 (zh) | 2011-01-28 | 2011-04-08 | 一种散热速度快的led发光柱 |
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CN2011200306023U CN201944627U (zh) | 2011-01-28 | 2011-01-28 | 一种散热速度快的led发光柱 |
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CN201944627U true CN201944627U (zh) | 2011-08-24 |
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CN2011200306023U Expired - Fee Related CN201944627U (zh) | 2011-01-28 | 2011-01-28 | 一种散热速度快的led发光柱 |
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WO (1) | WO2012100461A1 (zh) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5282953B2 (ja) * | 2008-11-21 | 2013-09-04 | 東芝ライテック株式会社 | 照明装置 |
JP2010129615A (ja) * | 2008-11-25 | 2010-06-10 | Toshiba Lighting & Technology Corp | 発光装置及び照明装置 |
CN201621640U (zh) * | 2010-02-25 | 2010-11-03 | 芜湖晨通照明有限责任公司 | 一种十字型led灯头 |
CN201621511U (zh) * | 2010-03-03 | 2010-11-03 | 芜湖晨通照明有限责任公司 | 一种t字型led灯头 |
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2011
- 2011-01-28 CN CN2011200306023U patent/CN201944627U/zh not_active Expired - Fee Related
- 2011-04-08 WO PCT/CN2011/072523 patent/WO2012100461A1/zh active Application Filing
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