CN105090766B - Led灯具 - Google Patents

Led灯具 Download PDF

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Publication number
CN105090766B
CN105090766B CN201410149873.9A CN201410149873A CN105090766B CN 105090766 B CN105090766 B CN 105090766B CN 201410149873 A CN201410149873 A CN 201410149873A CN 105090766 B CN105090766 B CN 105090766B
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Prior art keywords
lid
perisporium
lamp
ventilation duct
led lamp
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Expired - Fee Related
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CN201410149873.9A
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CN105090766A (zh
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肖亚波
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Chongqing Pusheng Electromechanical Engineering Co.,Ltd.
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Individual
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Priority to CN201410149873.9A priority Critical patent/CN105090766B/zh
Priority to TW103114334A priority patent/TW201538899A/zh
Priority to US14/519,928 priority patent/US9423078B2/en
Publication of CN105090766A publication Critical patent/CN105090766A/zh
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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
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped
    • 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
    • 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)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

一种LED灯具，包括光源部、灯座和灯头，灯头和光源部分别设于灯座两端，所述灯座包含周壁、盖体、通风管和多个脊部，所述周壁与灯头连接，所述周壁外侧围设有若干向外发散延伸的鳍片，相邻鳍片间形成通道，所述鳍片连接于所述周壁和盖体，所述盖体设有一通孔，所述通风管与盖体连接并与所述通孔及通道导通，所述脊部形成在盖体上、通风管周围，所述光源部设置于所述脊部。

Description

LED灯具
技术领域
本发明涉及一种LED灯具，特别涉及一种具有高散热性能的LED灯具。
背景技术
发光二极管（Light Emitting Diode，LED）具有亮度高、工作电压低、功耗小、易与集成电路匹配、驱动简单、寿命长等优点，从而可作为光源广泛应用于照明领域。
现有的LED灯具在使用时会产生大量的热量，如果不及时散热，将引起LED灯具自身温度升高，对LED灯具的使用性能和安全性造成影响。目前，现有的LED灯具是将设置有LED元件的PCB灯板固定在LED灯具外部的散热鳍片上实现散热，然而散热鳍片通常采用金属材质制成，不仅增加了整个LED灯具的重量，且提升了制造过程中的复杂度，生产成本高。
发明内容
本发明旨在提供一种LED灯具，在保证良好的散热性能的前提下，还可以克服上述缺陷。
一种LED灯具，包括光源部、灯座和灯头，灯头和光源部分别设于灯座两端，所述灯座包含周壁、盖体、通风管和多个脊部，所述周壁与灯头连接，所述周壁外侧围设有若干向外发散延伸的鳍片，相邻鳍片间形成通道，所述鳍片连接于所述周壁和盖体，所述盖体设有一通孔，所述通风管与盖体连接并与所述通孔及通道导通，所述脊部形成在盖体上、通风管周围，所述光源部设置于所述脊部。
本发明通过在LED灯具内部设置由通风管、通孔、收容腔、通道形成的内部空气流通路径，在LED灯具外部设置由通风管和脊部围设成的凹部以形成LED灯具外部空气流通路径，实现了对LED灯具的有效散热。另外，通过将脊部设置于通风管外围，实现了LED灯具的全周式发光。
附图说明
图1为本发明的LED灯具的示意图。
图2为图1所示的LED灯具的分解图。
图3为图2所示的LED灯具的另一角度的分解图。
图4为图2所示的灯座的剖面图。
图5为图2所示的灯座的剖面图。
主要元件符号说明
LED灯具 10
灯头 100
灯座 200
周壁 210
上开口 2101
下开口 2102
收容腔 2103
鳍片 211
通道 212
盖体 220
大端 2201
小端 2202
通孔 221
开口 222
间隙 223
通风管 230
脊部 240
顶壁 241
底壁 242
侧壁 243
凹部 244
光源部 300
电路板 310
横板 311
竖板 312
LED元件 320
灯罩 400
开孔 410
缺口 420
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
下面将结合附图，对本发明作进一步的详细说明。
请参阅图1至图3，本发明的一实施例中的LED灯具10，包括灯头100、与灯头100连接的灯座200、设置于灯座200的光源部300。在图2中，灯头100、灯座200、光源部300由自下而上的方向排列。所述光源部300包含电路板310和若干LED元件320。
所述灯头100可以是一标准灯头，用于与外部插座连接时，将该LED灯具10与外部电源形成电连接。
请参阅图4，所述灯座200可为铝合金、镁合金、锌合金、导热塑料或陶瓷等材料制成。所述灯座200包括周壁210、盖体220、通风管230和多个脊部240。
所述周壁210上下两端各形成一开口，即上开口2101和下开口2102。所述下开口2102与灯头100连通。所述周壁210内形成一用于收容电子元件的收容腔2103。在一具体的实施例中，该周壁210呈圆筒状。
请一并参阅图5，所述周壁210外侧围设有若干向外发散延伸的鳍片211，以增强LED灯具10的散热性能。相邻的鳍片211间设有通道212。所述鳍片211靠近周壁210的上开口2101所在的一端，且鳍片211的上端延伸超出周壁210的上端。
所述盖体220的两端分别设有通孔221和开口222。在一具体实施例中，盖体220大致呈一碗状结构。所述通孔221和开口222分别位于盖体220的小端2202和大端2201。所述盖体220的开口222朝向周壁210，且盖体220罩设在鳍片211上，盖体220的内壁与鳍片211连接。所述通孔221形成在所述盖体220的小端2202的中心。该通孔221的孔径小于周壁210的上开口2101的孔径。
由于鳍片211高出所述周壁210，使得盖体220与周壁210的上端之间形成间隙223，该间隙223连通鳍片211之间的通道212以及盖体220的通孔221。所述通孔221、间隙223和通道212之间相互导通，可加速收容腔2103以及整个灯座200内的空气流动，以增强LED灯具10的散热性能。
所述通风管230连接在盖体220的小端2202，并与通孔221连通，因此通过通风管230可进一步延伸导通鳍片211间的通道212、间隙223以及通孔221，以在灯座200内形成贯穿的气流通道。
请参阅图2和图4，所述脊部240形成在盖体220上，同时形成在通风管230的周围。所述脊部240将盖体220分隔成若干份。在一实施例中，脊部240为三个，对称设置在通风管230的周围。每一脊部240包括顶壁241、底壁242和两相对的侧壁243。底壁242可以看成是由盖体220的相应部分朝向周壁210向内凹陷形成，底壁242的一端连接在周壁210的上端，另一端连接通风管230的下端。所述顶壁241由通风管230向外侧延伸而成。所述顶壁241与通风管230的长度方向垂直。在本实施例中，所述顶壁241由通风管230水平延伸而出（图2所示）。两个侧壁243由顶壁241的相对两侧沿通风管230的长度方向朝底壁242延伸。
两个侧壁243分别设置在顶壁241和底壁242之间，每一侧壁243连接顶壁241和底壁242的相同侧。
在一实施例中，所述脊部240的顶壁241和两侧壁243形成一倒“U”型结构。在顶壁241和侧壁243外侧设置光源部300。所述脊部240的顶壁241和侧壁243增加了对光源部300的散热面积，对光源部300进行散热。所述脊部240在顶壁241、侧壁243和通风管230之间构建成一凹部244，形成了LED灯具10外部的空气流动的通道，对光源部300进行散热，增强了LED灯具10的散热性能。
所述光源部300包括若干电路板310和设置于电路板310的若干LED元件320。所述若干LED元件320与电路板310电连接。所述电路板310可为铝基电路板、铜基电路板、玻璃纤维电路板、多层膜复合式电路板或软性电路板。所述电路板310为“U”型电路板。所述电路板310骑设于脊部240上。所述电路板310包含贴设于脊部240顶壁241的横板311和两贴设于脊部240侧壁243的竖板312。在生产过程中，可采用折弯工艺制造所述“U”型电路板310，每一电路板310从脊部240的顶壁241向盖体220的方向推进而固定于每一脊部240上。可以理解的是，所述每一“U”型电路板310也可以由三块独立的电路板组合而成。在本实施例中，三个脊部240自通风管230向外发散分布，相邻两脊部240之间夹角为120°，因此三组LED元件320装设在脊部240上，增加了所述LED灯具10的发光角度，实现了全周式发光。
所述LED灯具10还包括灯罩400。所述灯罩400罩设所述光源部300。所述灯罩400与灯座200扣合。所述灯罩400包括与通风管230相配合的开孔410和与脊部240配合的缺口420。在本实施例中，开孔410与通风管230相配合，缺口420与凹部244相配合。所述灯罩400为透明或半透明的玻璃或塑料。所述灯罩400的具有凸出或凹陷于表面的点状数组结构或雾面扩散表面，对出光角度进行优化，以使得LED灯具10出光均匀。
对于本领域的技术人员来说可以做本发明技术构思内做其他变化，但是，根据本发明的技术构思做出其它各种相应的改变与变形，都应属于本发明权利要求的保护范围。

Claims (6)

1.一种LED灯具，包括光源部、灯座和灯头，灯头和光源部分别设于灯座两端，其特征在于：所述灯座包含周壁、盖体、通风管和多个脊部，所述周壁与灯头连接，所述周壁外侧围设有若干向外发散延伸的鳍片，相邻鳍片间形成通道，所述鳍片连接于所述周壁和盖体，所述盖体设有一通孔，所述通风管与盖体连接并与所述通孔及通道导通，所述脊部形成在盖体上、通风管周围，所述光源部设置于所述脊部；所述鳍片延伸超过周壁的一端，使所述盖体与周壁间形成间隙，所述间隙导通所述通道及通孔；所述盖体包括小端和大端，所述通孔设置在盖体的小端，所述盖体罩设所述鳍片；所述盖体的内壁与鳍片连接；所述脊部包括顶壁、底壁和两相对的侧壁，所述底壁由盖体朝周壁向内凹陷形成，顶壁由通风管向外侧延伸而成，两相对的侧壁由顶壁的相对两侧沿通风管向底壁延伸。
2.如权利要求1所述的LED灯具，其特征在于：所述周壁为一圆筒状结构。
3.如权利要求1所述的LED灯具，其特征在于：所述顶壁和两相对侧壁构成一倒“U”型结构。
4.如权利要求1或3所述的LED灯具，其特征在于：所述脊部为三个，所述三个脊部呈自通风管向外发散分布，三个脊部间的夹角为120°。
5.如权利要求4所述的LED灯具，其特征在于：光源部包含电路板和若干LED元件，所述电路板为一体成型的“U”型弯折电路板，所述“U”型电路板夹设于脊部上。
6.如权利要求1所述的LED灯具，其特征在于：所述LED灯具还包括一罩设于灯座的灯罩，所述灯罩包含与通风管相配合的开孔和与脊部相配合的缺口。
CN201410149873.9A 2014-04-15 2014-04-15 Led灯具 Expired - Fee Related CN105090766B (zh)

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Application Number Priority Date Filing Date Title
CN201410149873.9A CN105090766B (zh) 2014-04-15 2014-04-15 Led灯具
TW103114334A TW201538899A (zh) 2014-04-15 2014-04-21 發光二極體燈具
US14/519,928 US9423078B2 (en) 2014-04-15 2014-10-21 LED lamp

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Publication number Priority date Publication date Assignee Title
US10386026B2 (en) * 2017-06-08 2019-08-20 Epistar Corporation Light fixture

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CN102308147A (zh) * 2009-02-09 2012-01-04 欧司朗有限公司 用于照明装置的冷却体
CN202188338U (zh) * 2011-07-12 2012-04-11 英飞特电子（杭州）有限公司 一种led灯
CN103307469A (zh) * 2012-03-16 2013-09-18 欧司朗股份有限公司 发光装置和具有该发光装置的全向照明装置
CN103388754A (zh) * 2012-05-07 2013-11-13 Lg伊诺特有限公司 照明装置

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Publication number Priority date Publication date Assignee Title
US20120248961A1 (en) * 2011-03-29 2012-10-04 Chicony Power Technology Co., Ltd. Led bulb with heat dissipater
FR2988811B1 (fr) * 2012-04-03 2015-03-27 Lucibel Sa Lampe a diode electroluminescente

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Publication number Priority date Publication date Assignee Title
CN102308147A (zh) * 2009-02-09 2012-01-04 欧司朗有限公司 用于照明装置的冷却体
CN202082665U (zh) * 2011-05-03 2011-12-21 英飞特光电（杭州）有限公司 Led灯泡
CN202188338U (zh) * 2011-07-12 2012-04-11 英飞特电子（杭州）有限公司 一种led灯
CN103307469A (zh) * 2012-03-16 2013-09-18 欧司朗股份有限公司 发光装置和具有该发光装置的全向照明装置
CN103388754A (zh) * 2012-05-07 2013-11-13 Lg伊诺特有限公司 照明装置

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CN105090766A (zh) 2015-11-25
TW201538899A (zh) 2015-10-16
US9423078B2 (en) 2016-08-23
US20150292727A1 (en) 2015-10-15

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