CN100552287C - 大功率半导体照明灯 - Google Patents

大功率半导体照明灯 Download PDF

Info

Publication number
CN100552287C
CN100552287C CNB200710041405XA CN200710041405A CN100552287C CN 100552287 C CN100552287 C CN 100552287C CN B200710041405X A CNB200710041405X A CN B200710041405XA CN 200710041405 A CN200710041405 A CN 200710041405A CN 100552287 C CN100552287 C CN 100552287C
Authority
CN
China
Prior art keywords
fin
led
heat
heat transfer
fins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB200710041405XA
Other languages
English (en)
Other versions
CN101315175A (zh
Inventor
金松山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING HENGRUI TIAN QI TECHNOLOGY Co Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNB200710041405XA priority Critical patent/CN100552287C/zh
Publication of CN101315175A publication Critical patent/CN101315175A/zh
Application granted granted Critical
Publication of CN100552287C publication Critical patent/CN100552287C/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • 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]

Landscapes

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

Abstract

本发明公开了一种大功率半导体照明灯，包括灯头、LED驱动器、绝缘外壳、散热片交叉型散热器和大功率LED，在散热片交叉型散热器底面上设置有环型凹槽，在其环型凹槽中心平面上固定大功率LED，并以反光镜包围大功率LED，灯罩与环型凹槽密封连接；散热片交叉型散热器由凹型导热体、肋片、传热片、鳍片和散热片构成，在凹型导热体内垂直排列有肋片，在其外壁上环绕排列传热片，在传热片的始端两侧和末端上设置有鳍片，其鳍片的宽度是从下到上变窄，散热片的宽度是从上到下变窄，并分布在传热片之间，与鳍片交叉排列，且与凹型导热体外壁上相连接。采用导热性好的铝材料压铸而成的散热片交叉型散热器，提升了向周围空间的散热能力，将最大限度的降低大功率LED的光衰，能够实现结构紧凑的室内外普通照明和装饰用灯具。

Description

大功率半导体照明灯
技术领域
本发明涉及一种半导体照明灯，特别是一种单颗大功率LED固定在散热片交叉型散热器上的大功率半导体照明灯。
背景技术
半导体电光源是一种无灯丝的电光源，是一种直接把电能转化为光能的发光器件，称为发光二极管，也称为半导体灯，英文简称LED。半导体照明被认为是21世纪的照明新节能光源。LED不仅节能，还具有寿命长、体积小、安全、环保、免维护、易控制等特点。LED已经可以在很多场所代替传统光源使用，特别是大功率LED的出现，加速了LED取代传统照明光源的速度，也使得LED在室内外照明的大面积应用变得现实。
大功率LED是LED产业未来发展的一个方向，但大功率LED对散热技术要求较高，LED的功率越大，其芯片的热流密度就越高，环境温度达到一定的限度就会很快产生光衰，直接导致LED寿命的下降，当散热器的效果不良时LED芯片的温度急剧上升而损坏LED芯片，只有解决大功率LED的散热技术，最大限度的延缓LED的光衰，才能大面积的推广大功率LED的应用。
现有技术中的半导体照明灯，如图1所示的结构，一组大功率LED12固定在漏斗型散热器17上，并与灯头1和LED驱动器2电连接，漏斗型散热器17被固定在散热器架16上，并由绝缘外壳3和灯罩10将大功率LED12包围起来。这种结构的半导体组合灯，发光强度不均衡，且因漏斗型散热器17被灯罩10大面积包围，不能与空气进行充分的热交换，散热性能较差，而较快产生光衰，直接导致LED寿命的下降。
发明内容
为解决半导体组合灯的发光强度不均衡和大功率LED散热效果较差而导致LED寿命的下降，本发明提供一种把漏斗型散热器17和散热器架16连成一体，并改进为散热片交叉型散热器，且采用单颗大功率LED的大功率半导体照明灯。
本发明解决其技术问题所采用的技术方案是：包括灯头、LED驱动器、绝缘外壳、散热片交叉型散热器和大功率LED，其中灯头、LED驱动器和大功率LED电连接，在散热片交叉型散热器底面上设置有环型凹槽，在其环型凹槽中心平面上固定大功率LED，并以反光镜包围大功率LED，灯罩与环型凹槽密封连接；在绝缘外壳上设置有光敏传感器。
所述的散热片交叉型散热器由凹型导热体、肋片、传热片、鳍片和散热片构成；在凹型导热体内壁和底面上环绕并垂直排列有肋片；在凹型导热体外壁上环绕并垂直排列传热片，在传热片的始端两侧和末端上设置有鳍片，其鳍片的宽度是从下到上变窄；散热片的宽度是从上到下变窄，并分布在传热片之间，与鳍片交叉排列，且与凹型导热体外壁上相连接。
在LED驱动器结构中，光控PCB固定在LED电源PCB的一侧，并与光敏传感器电连接；在LED电源PCB的另一侧固定有高频的隔离变压器。
本发明的有益效果是，这种顺着热气流向上的方向垂直排列散热片，并与鳍片交叉排列的结构，与现有技术中的漏斗型散热器相比，其显著优点是，大功率LED中的热量通过凹型导热体传递给传热片和散热片，与空气进行热交换，而把散热片和鳍片的热量带走。空气带走热量多少与散热片和鳍片的表面积大小有关。散热片的表面积越大，传递的热量越多，散热效果就越高。但受空间和成本所限，散热器的体积就难以继续增大。因此为了继续提升散热器的散热效果，不得不在散热片的造型和数量上下工夫。在实际应用中散热片或鳍片间距过小，很容易被积尘淤满，并在间距的热量不易与空气充分进行热交换，因此散热片求多求大，但不求密。
在散热片交叉型散热器结构中，散热片和鳍片的上下宽度不等，并交叉方式排列，在宽度较窄的一侧留有足够的空间，即使散热片的间距较密，热量和周围空气能进行充分的热交换，而减小散热器和周围空气之间的温度差，将最大限度的降低大功率LED中的温度，减少大功率LED的光衰，能够实现结构紧凑的室内外普通照明和装饰用灯具。
附图说明
图1是现有技术中的一种半导体组合灯的结构示意图。
图2是本发明一个实施例的结构示意图。
图3是图2所示实施例中的散热片交叉型散热器的俯视图。
图4是图3的A-A半剖视图。
图5是图3的仰视图。
图6是LED驱动器的结构示意图。
图中1.灯头，2.LED驱动器，201.隔离变压器，202.LED电源PCB，203.光控PCB，3.绝缘外壳，4.散热片，5.凹型导热体，6.肋片，7.鳍片，8.传热片，9.环形凹槽，10.灯罩，11.反光镜，12.大功率LED，13.鳍片，14.光敏传感器，15.散热片交叉型散热器，16.散热器架，17.漏斗型散热器。
具体实施方式
由图2～图6所示，本发明包括灯头1、LED驱动器2、绝缘外壳3、散热片交叉型散热器15和大功率LED12，其中灯头1和LED驱动器2分别与光敏传感器14和大功率LED12电连接。在绝缘外壳3上设置有光敏传感器14。LED驱动器2被灯头1、绝缘外壳3、散热片交叉型散热器15包围。根据灯具安装使用要求，也可以不用灯头1，电源直接经绝缘外壳3，和LED驱动器2连接。
绝缘外壳3和散热片交叉型散热器15可密封连接，不需要密封时可在绝缘外壳3的周围上开槽或开空，以便凹型导热体5内的热量散发，进一步降低大功率LED12的温度。当大功率LED12的温度超过限定温度时，LED驱动器2的热量管理及时控制大功率LED12的亮度调低或熄灭。为了节能，在个别场合的使用灯具，可以设置光敏传感器14，控制天亮与暗的时段内对灯光的强弱与熄灭。
在散热片交叉型散热器15底面上设置有环型凹槽9，在其环型凹槽9的中心平面上固定大功率LED12，并以反光镜11包围大功率LED12，灯罩10与环型凹槽9密封连接。该灯罩10是半圆型，也可以采用平板型或其他形状，只要具有透光率高，防眩光，护眼功能即可。
散热片交叉型散热器15是由凹型导热体5、肋片6、传热片8、鳍片7、鳍片13和散热片4构成，并用导热和散热性能好的铝材料高压铸造成一体。在凹型导热体5内设置有肋片6，并和凹型导热体5的底面与内壁上以环绕方式垂直排列；在凹型导热体5外壁上环绕分布并垂直方向排列传热片8和鳍片7，传热片8是在凹型导热体5外壁的顶部或中部开始往下逐渐变宽，其宽度一定时加长鳍片13，鳍片7是从顶部开始往下逐渐变宽，并与传热片8的始端两侧开始连接到底；散热片4的宽度是从上到下变窄，并分布在传热片8之间，与鳍片7交叉排列，且与凹型导热体5外壁上相连接。
大功率LED12的输出功率和散热基板(LED自带的散热片或螺栓)的大小或其固定方式的不同，凹型导热体5的直径和底面形状以及肋片6、传热片8和散热片4的数目和大小则略有不同。
在LED驱动器2的结构中，光控PCB203固定在LED电源PCB202的一侧，并与光敏传感器14电连接；在LED电源PCB202的另一侧固定有高频的隔离变压器201。

Claims (3)

1、一种大功率半导体照明灯，包括灯头、LED驱动器、绝缘外壳、散热片交叉型散热器和大功率LED，其中灯头、LED驱动器和大功率LED电连接，其特征是：
在散热片交叉型散热器底面上设置有环型凹槽，在其环型凹槽中心平面上固定大功率LED，并以反光镜包围大功率LED，灯罩与环型凹槽密封连接；在绝缘外壳上设置有光敏传感器；
所述的散热片交叉型散热器由凹型导热体、肋片、传热片、鳍片和散热片构成；在凹型导热体内壁上环绕并垂直排列有肋片；在凹型导热体外壁上环绕并垂直排列传热片，在传热片的始端两侧和末端上设置有鳍片，其鳍片的宽度是从下到上变窄；散热片的宽度是从上到下变窄，并分布在传热片之间，与鳍片交叉排列，且与凹型导热体外壁上相连接。
2、根据权利要求1所述的大功率半导体照明灯，其特征是：在LED驱动器结构中，光控PCB固定在LED电源PCB的一侧，并与光敏传感器电连接；在LED电源PCB的另一侧固定有高频的隔离变压器。
3、根据权利要求1所述的大功率半导体照明灯，其特征是：散热片交叉型散热器用导热和散热性好的铝材料高压铸造而成。
CNB200710041405XA 2007-05-29 2007-05-29 大功率半导体照明灯 Expired - Fee Related CN100552287C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200710041405XA CN100552287C (zh) 2007-05-29 2007-05-29 大功率半导体照明灯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200710041405XA CN100552287C (zh) 2007-05-29 2007-05-29 大功率半导体照明灯

Publications (2)

Publication Number Publication Date
CN101315175A CN101315175A (zh) 2008-12-03
CN100552287C true CN100552287C (zh) 2009-10-21

Family

ID=40106272

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200710041405XA Expired - Fee Related CN100552287C (zh) 2007-05-29 2007-05-29 大功率半导体照明灯

Country Status (1)

Country Link
CN (1) CN100552287C (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102563575A (zh) * 2010-12-16 2012-07-11 金松山 Led灯具的隔离型散热装置
KR102125887B1 (ko) * 2010-12-31 2020-06-26 커런트 라이팅 솔루션즈, 엘엘씨 발광 장치 및 램프
CN103062643B (zh) * 2011-10-21 2015-11-18 深圳长城开发科技股份有限公司 一种led球泡灯
CN103090339A (zh) * 2011-10-29 2013-05-08 金松山 Led灯交叉式散热器
CN104180345B (zh) * 2013-05-28 2017-09-22 深圳市海洋王照明工程有限公司 一种灯具
CN104654255A (zh) * 2013-11-22 2015-05-27 苏州承源光电科技有限公司 Led用散热器
WO2016070368A1 (zh) * 2014-11-06 2016-05-12 袁志贤 一种新型散热led灯

Also Published As

Publication number Publication date
CN101315175A (zh) 2008-12-03

Similar Documents

Publication Publication Date Title
CN100552287C (zh) 大功率半导体照明灯
CN202834951U (zh) 直管型led灯
CN102135248A (zh) 基于液态金属散热的螺纹连接结构的大功率led光源
WO2008138177A1 (fr) Système d'éclairage del avec effet de radiation à haute efficacité
CN102563575A (zh) Led灯具的隔离型散热装置
CN202132911U (zh) Led灯具的隔离型散热装置
CN202511239U (zh) 一种复合相变立体式led散热器
WO2013086795A1 (zh) 一种新型普通照明led灯
CN101285558A (zh) 高功率半导体照明灯
CN101922659A (zh) 具有刺猬型热管群散热器的大功率led隧道灯
CN201043737Y (zh) 大功率半导体照明灯
CN203162619U (zh) 一种高效散热的led灯具
CN102003684B (zh) 大功率led照明灯具散热结构
CN201425286Y (zh) 一种led灯的散热结构
CN207350205U (zh) 一种基于相变热管技术的空冷火车前照灯
CN203868812U (zh) 一种led筒灯
CN203533494U (zh) 一种大功率led灯的散热系统
CN202327727U (zh) 包覆塑胶型led灯具
CN101943328A (zh) 一种单颗特大功率led光源照明灯
CN201057381Y (zh) 高功率半导体照明灯
CN201589110U (zh) 具有镁合金散热结构的led灯
CN201225591Y (zh) 栅栏型led照明灯具
CN221881192U (zh) 一种高亮led龙珠泡
CN207179231U (zh) 一种led球泡灯散热结构
CN203147461U (zh) Led导轨灯

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: Shandong Dongying Economic Development Zone 56 East six road Tektronix Photoelectric Technology Park

Patentee after: Jin Songshan

Address before: Room 25, No. 390, Lane 402, Royal mountain road, Shanghai, Pudong New Area

Patentee before: Jin Songshan

C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: Department of ENT, 146 Development Zone Hospital, the Yellow Sea West Road, Dalian Development Zone, Liaoning Province, China

Patentee after: Jin Songshan

Address before: Shandong Dongying Economic Development Zone 56 East six road Tektronix Photoelectric Technology Park

Patentee before: Jin Songshan

C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: 116100 Liaoning Province, Dalian city Jinzhou district west coast defense Lu Feng Jing building No. 443 room 4-1501

Patentee after: Jin Songshan

Address before: 116600 Department of ENT, Development Zone Hospital, 146 West Road, Dalian Development Zone, the Yellow Sea, Liaoning

Patentee before: Jin Songshan

ASS Succession or assignment of patent right

Owner name: BEIJING HENGRUI TIANQI TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: JIN SONGSHAN

Effective date: 20120411

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 116100 DALIAN, LIAONING PROVINCE TO: 100070 DAXING, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20120411

Address after: 100070, No. 2, West eight, Jia Ming Street, North Village, Daxing District, Beijing

Patentee after: Beijing hengrui Tian Qi Technology Co., Ltd.

Address before: 116100 Liaoning Province, Dalian city Jinzhou district west coast defense Lu Feng Jing building No. 443 room 4-1501

Patentee before: Jin Songshan

DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Qi Bingcong

Document name: Notification of Termination of Patent Right

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091021

Termination date: 20130529