WO2012024877A1 - Led lamp having characteristic of good heat dissipation - Google Patents

Led lamp having characteristic of good heat dissipation Download PDF

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Publication number
WO2012024877A1
WO2012024877A1 PCT/CN2010/080160 CN2010080160W WO2012024877A1 WO 2012024877 A1 WO2012024877 A1 WO 2012024877A1 CN 2010080160 W CN2010080160 W CN 2010080160W WO 2012024877 A1 WO2012024877 A1 WO 2012024877A1
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WO
WIPO (PCT)
Prior art keywords
lamp
heat sink
heat dissipation
fin
led lamp
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.)
Ceased
Application number
PCT/CN2010/080160
Other languages
French (fr)
Chinese (zh)
Inventor
苏光耀
范达周
李�浩
王晓
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.)
ZHEJIANG MESES SEMICONDUCTOR TECHNOLOGY Co Ltd
Original Assignee
ZHEJIANG MESES SEMICONDUCTOR TECHNOLOGY Co Ltd
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Filing date
Publication date
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Publication of WO2012024877A1 publication Critical patent/WO2012024877A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement 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
    • F21V23/004—Arrangement 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 arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—Arrangement 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 arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • 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]

Definitions

  • the invention relates to a lighting fixture, in particular to an LED lamp with good heat dissipation performance using a high-power LED as an illumination source. Background technique
  • LED light sources are more and more used in the places of life production because of their advantages of energy saving, environmental protection and longevity.
  • the present invention provides an LED lamp with good heat dissipation performance, which has good heat dissipation performance and ensures reliable operation of the lamp.
  • the LED lamp with good heat dissipation performance including the LED lamp head and the driving power source, is characterized in that: the lamp cap has a disc-shaped lamp head heat sink, and the LED chip receiving cavity is opened in the center of the lamp head heat sink, and the LED chip is packaged in the receiving cavity
  • the accommodating cavity is covered with a lens
  • the cap radiator comprises a plurality of strip fins extending radially outward from the center of the disc
  • the driving power source is disposed in a heat dissipating power box separated from the lamp cap, the power box The heat sink fins are covered, and the power box and the lamp cap are connected by two connecting posts.
  • the LED light source and the driving power source are located in different chambers that are isolated from each other, and the heat is separately radiated, and the heat dissipation effect is better.
  • the strip fins extending outwardly can effectively dissipate the heat generated by the chip and reduce the operating temperature of the chip.
  • the strip fins on the base heat sink include a main fin that is distributed in a cross and a sub fin that is located between the main fins.
  • the main fin has a mounting hole at the inner root portion, and a pressure ring is connected through the connecting member. In the mounting hole The lens is fixed to the base heat sink.
  • the strip fins on the base heat sink include a root portion on the inner side and a branch portion on the outer side, and each strip fin is divided into two fin forks extending outward in the branch portion.
  • the connecting post is provided with a lead wire, and the lead wire electrically connects the driving power source to the LED chip.
  • the power supply box is provided with an U-shaped fixing bracket with an adjustable angle.
  • the invention has the advantages of convenient processing, good heat dissipation effect, convenient use, high work reliability and high stability.
  • Figure 1 is a schematic structural view of the present invention
  • Fig. 3 is a schematic view showing another structure of the present invention. detailed description
  • the LED lamp with good heat dissipation performance shown in Fig. 1 mainly comprises two parts, a lamp cap 1 and a heat dissipating power supply box 2, which are connected by two connecting columns 3.
  • the lamp cap has a disc-shaped lamp head heat sink, and the center of the lamp head heat sink has an LED chip receiving cavity, and the receiving cavity is covered with an LED chip, and the receiving cavity is covered with a lens 5.
  • the base heat sink includes a plurality of strip fins that extend radially outward from the center of the disc.
  • the strip fins are divided into a main fin 11 distributed in a cross and a sub fin 12 between the main fins.
  • the main fin is relatively thick, and its main supporting frame functions.
  • the main fin is located at the inner root.
  • each strip fin can be bifurcated at a certain distance, and the heat dissipation surface area is larger. As the radius increases, the bifurcation does not cause the fins to be too tight, and is still reasonable.
  • the gap is for air circulation.
  • the power supply box is also covered with heat-dissipating fins to dissipate the heat generated by the driving power in the box.
  • the power box is connected with a five-section U-shaped fixing bracket, which fits well with the outer surface circular drive power supply.
  • the installation angle can be adjusted freely between 0-180°.

Landscapes

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

Abstract

An LED lamp having the characteristic of good heat dissipation comprises an LED lamp base (1) and a driving power source (2). The lamp base is provided with a disc-shaped heat radiator. An LED chip holding cavity is provided in the centre of the heat radiator of the lamp base. The LED chip is encapsulated in the holding cavity. The holding cavity is covered by a lens (5). The heat radiator of the lamp base comprises several bar-shaped fins extending radially outward from the centre of the disc. The driving power source is provided in the heat radiating power box separated from the lamp base. The heat radiating fins are provided around the outer surface of the power box. The power box is connected to the lamp base by two joint poles (3).

Description

具有良好散热性能的 LED灯具  LED lamps with good heat dissipation performance

技术领域 Technical field

本发明涉及一种照明灯具，具体是一种以大功率发光二极管作为照明光源的 具有良好散热性能的 LED灯具。 背景技术  The invention relates to a lighting fixture, in particular to an LED lamp with good heat dissipation performance using a high-power LED as an illumination source. Background technique

随着技术的发展进步， LED 光源以其节能、 环保、 长寿等优点而越多越多 地被应用于生活生产的场所中。  With the development of technology, LED light sources are more and more used in the places of life production because of their advantages of energy saving, environmental protection and longevity.

LED灯具在设计时需要解决的一个重要问题便是散热。 LED芯片在工作时 会发出很大的热量， 如果不能将这些热量及时散发出去， 引起 LED温度过高， 便会影响 LED芯片的发光效率、 使用寿命， 甚至造成灯具的损坏。 发明内容  An important issue that LED luminaires need to address during design is heat dissipation. When the LED chip is working, it will emit a lot of heat. If the heat cannot be dissipated in time, causing the LED temperature to be too high, it will affect the luminous efficiency, service life of the LED chip, and even damage the lamp. Summary of the invention

为了解决现有技术中存在的上述问题，本发明提供一种具有良好散热性能的 LED灯具， 使之具备良好的散热性能， 保证灯具可靠工作。  In order to solve the above problems in the prior art, the present invention provides an LED lamp with good heat dissipation performance, which has good heat dissipation performance and ensures reliable operation of the lamp.

为此， 本发明采用以下技术方案：  To this end, the present invention adopts the following technical solutions:

具有良好散热性能的 LED灯具， 包括 LED灯头和驱动电源， 其特征在于： 所述的灯头具有圆盘形灯头散热器，灯头散热器的中央开设有 LED芯片容纳腔， 容纳腔内封装有 LED芯片， 容纳腔上覆盖有透镜， 所述的灯头散热器包括若干 从圆盘中心向外辐射状延伸的条状鰭片，所述的驱动电源设于与灯头相分离的散 热电源盒内， 电源盒外布满散热鰭片， 电源盒与灯头通过两个连接柱相连。  The LED lamp with good heat dissipation performance, including the LED lamp head and the driving power source, is characterized in that: the lamp cap has a disc-shaped lamp head heat sink, and the LED chip receiving cavity is opened in the center of the lamp head heat sink, and the LED chip is packaged in the receiving cavity The accommodating cavity is covered with a lens, and the cap radiator comprises a plurality of strip fins extending radially outward from the center of the disc, and the driving power source is disposed in a heat dissipating power box separated from the lamp cap, the power box The heat sink fins are covered, and the power box and the lamp cap are connected by two connecting posts.

LED光源和驱动电源位于相隔离的不同腔体内， 热量分别散发， 散热效果 更好。 向外辐射状延伸的条状鰭片能有效地将芯片产生的热量即使散发， 降低芯 片工作温度。 作为对上述技术方案的完善和补充，本发明进一步采取如下技术措施或是这 些措施的任意组合：  The LED light source and the driving power source are located in different chambers that are isolated from each other, and the heat is separately radiated, and the heat dissipation effect is better. The strip fins extending outwardly can effectively dissipate the heat generated by the chip and reduce the operating temperature of the chip. As a perfection and supplement to the above technical solutions, the present invention further adopts the following technical measures or any combination of these measures:

所述灯头散热器上的条状鰭片包括呈十字分布的主鰭片和位于主鰭片之间 的副鰭片， 主鰭片位于内侧的根部开有安装孔， 一压环通过连接件连接在安装孔 内使透镜固定在灯头散热器上。 The strip fins on the base heat sink include a main fin that is distributed in a cross and a sub fin that is located between the main fins. The main fin has a mounting hole at the inner root portion, and a pressure ring is connected through the connecting member. In the mounting hole The lens is fixed to the base heat sink.

所述灯头散热器上的条状鰭片包括位于内侧的根部和位于外侧的分叉部，每 个条状鰭片在分叉部内分为两个鰭片叉向外延伸。  The strip fins on the base heat sink include a root portion on the inner side and a branch portion on the outer side, and each strip fin is divided into two fin forks extending outward in the branch portion.

所述的连接柱内穿有引线， 引线将驱动电源与 LED芯片电连接。  The connecting post is provided with a lead wire, and the lead wire electrically connects the driving power source to the LED chip.

所述的电源盒上设有可调节角度的 U型固定支架。 本发明的有益效果： 本灯具加工方便， 散热效果好， 使用方便， 工作可靠性 和稳定性高。 附图说明  The power supply box is provided with an U-shaped fixing bracket with an adjustable angle. The invention has the advantages of convenient processing, good heat dissipation effect, convenient use, high work reliability and high stability. DRAWINGS

图 1为本发明的结构示意图；  Figure 1 is a schematic structural view of the present invention;

图 2为本发明的另一结构示意图；  2 is another schematic structural view of the present invention;

图 3为本发明的另一结构示意图。 具体实施方式  Fig. 3 is a schematic view showing another structure of the present invention. detailed description

如图 1所示的具有良好散热性能的 LED灯具， 主要包括灯头 1和散热电源 盒 2两部分， 它们之间通过两个连接柱 3相连。  The LED lamp with good heat dissipation performance shown in Fig. 1 mainly comprises two parts, a lamp cap 1 and a heat dissipating power supply box 2, which are connected by two connecting columns 3.

灯头具有圆盘形灯头散热器， 灯头散热器的中央开有 LED芯片容纳腔， 容 纳腔内封装有 LED芯片， 容纳腔上覆盖有透镜 5。 灯头散热器包括很多从圆盘 中心向外辐射状延伸的条状鰭片。 这些条状鰭片分为呈十字分布的主鰭片 11和 位于主鰭片之间的副鰭片 12， 主鰭片比较厚， 其主要的支撑构架作用， 主鰭片 位于内侧的根部开有安装孔， 用以连接压环 6使透镜固定在灯头散热器上。  The lamp cap has a disc-shaped lamp head heat sink, and the center of the lamp head heat sink has an LED chip receiving cavity, and the receiving cavity is covered with an LED chip, and the receiving cavity is covered with a lens 5. The base heat sink includes a plurality of strip fins that extend radially outward from the center of the disc. The strip fins are divided into a main fin 11 distributed in a cross and a sub fin 12 between the main fins. The main fin is relatively thick, and its main supporting frame functions. The main fin is located at the inner root. A mounting hole for connecting the pressure ring 6 to fix the lens to the base heat sink.

进一步地， 为了增强散热效果， 可使每个条状鰭片在一定距离分叉， 是散热 表面积更大， 随着半径增大， 分叉又不会造成鰭片之间过于紧密， 仍具有合理的 空隙供空气流通。  Further, in order to enhance the heat dissipation effect, each strip fin can be bifurcated at a certain distance, and the heat dissipation surface area is larger. As the radius increases, the bifurcation does not cause the fins to be too tight, and is still reasonable. The gap is for air circulation.

电源盒外也同样布满散热鰭片， 用以散发盒内驱动电源产生的热量。  The power supply box is also covered with heat-dissipating fins to dissipate the heat generated by the driving power in the box.

电源盒上连有五段折边的 U型固定支架， 与外表面圆形驱动电源器贴合较 好， 安装角度可在 0-180° 之间任意调节。 应当指出，本实施例仅列示性说明本发明的原理及功效， 而非用于限制本发 明。任何熟悉此项技术的人员均可在不违背本发明的精神及范围下，对上述实施 例进行修改。 因此， 本发明的权利保护范围， 应如权利要求书所列。 The power box is connected with a five-section U-shaped fixing bracket, which fits well with the outer surface circular drive power supply. The installation angle can be adjusted freely between 0-180°. It should be noted that the present embodiments are merely illustrative of the principles and effects of the invention and are not intended to limit the invention. Any of the above-described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

权利 要 求 书 Claim 1、 具有良好散热性能的 LED灯具， 包括 LED灯头和驱动电源， 其特征在 于： 所述的灯头具有圆盘形灯头散热器， 灯头散热器的中央开设有 LED芯片容 纳腔， 容纳腔内封装有 LED芯片， 容纳腔上覆盖有透镜， 所述的灯头散热器包 括若干从圆盘中心向外辐射状延伸的条状鰭片，所述的驱动电源设于与灯头相分 离的散热电源盒内，电源盒外布满散热鰭片，电源盒与灯头通过两个连接柱相连。 1. LED lamp with good heat dissipation performance, including LED lamp head and driving power source, wherein: the lamp cap has a disc-shaped lamp head heat sink, and the center of the lamp head heat sink is provided with an LED chip receiving cavity, and the receiving cavity is packaged with The LED chip is covered with a lens, and the base heat sink comprises a plurality of strip fins extending radially outward from the center of the disc, and the driving power source is disposed in a heat dissipating power box separated from the lamp cap. The power box is covered with heat sink fins, and the power box and the lamp head are connected by two connecting posts. 2、根据权利要求 1所述的具有良好散热性能的 LED灯具， 其特征在于： 所 述灯头散热器上的条状鰭片包括呈十字分布的主鰭片和位于主鰭片之间的副鰭 片， 主鰭片位于内侧的根部开有安装孔， 一压环通过连接件连接在安装孔内使透 镜固定在灯头散热器上。  2. The LED lamp with good heat dissipation performance according to claim 1, wherein: the strip fins on the base heat sink comprise a main fin that is distributed in a cross and a sub fin between the main fins. The main fin has a mounting hole at the inner side of the main fin, and a pressing ring is connected to the mounting hole through the connecting member to fix the lens on the lamp heat sink. 3、根据权利要求 1所述的具有良好散热性能的 LED灯具， 其特征在于： 所 述灯头散热器上的条状鰭片包括位于内侧的根部和位于外侧的分叉部，每个条状 鰭片在分叉部内分为两个鰭片叉向外延伸。  3. The LED lamp with good heat dissipation performance according to claim 1, wherein: the strip fin on the base heat sink comprises a root portion on the inner side and a branch portion on the outer side, each strip fin The sheet is divided into two fin forks extending outward in the bifurcation. 4、根据权利要求 1所述的具有良好散热性能的 LED灯具， 其特征在于： 所 述的连接柱内穿有引线， 引线将驱动电源与 LED芯片电连接。  4. The LED lamp with good heat dissipation performance according to claim 1, wherein: the connecting post is provided with a lead wire, and the lead wire electrically connects the driving power source to the LED chip. 5、根据权利要求 1所述的具有良好散热性能的 LED灯具， 其特征在于： 所 述的电源盒上设有可调节角度的 U型固定支架。  5. The LED lamp with good heat dissipation performance according to claim 1, wherein: the power supply box is provided with an U-shaped fixing bracket with an adjustable angle.
PCT/CN2010/080160 2010-08-24 2010-12-23 Led lamp having characteristic of good heat dissipation Ceased WO2012024877A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201020506779.1 2010-08-24
CN2010205067791U CN201757313U (en) 2010-08-24 2010-08-24 LED lamp with good radiation performance

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WO2012024877A1 true WO2012024877A1 (en) 2012-03-01

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102244050B (en) * 2011-05-20 2013-06-12 浙江华鑫实业有限公司 Heat radiator and manufacturing method thereof
CN102679217A (en) * 2012-05-09 2012-09-19 东营泰克拓普光电科技有限公司 Light distribution device used for low-pole illuminating lens
ES2569413B1 (en) * 2015-09-18 2017-02-16 Simon, S.A.U Luminary

Citations (4)

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US20070236935A1 (en) * 2006-03-31 2007-10-11 Augux Co., Ltd. LED lamp conducting structure with plate-type heat pipe
CN101210664A (en) * 2006-12-29 2008-07-02 富准精密工业(深圳)有限公司 Light-emitting diode lamps and lanterns
CN201180973Y (en) * 2008-03-10 2009-01-14 龙国庆 High power LED lighting device
CN101451694A (en) * 2007-12-07 2009-06-10 富准精密工业(深圳)有限公司 LED lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070236935A1 (en) * 2006-03-31 2007-10-11 Augux Co., Ltd. LED lamp conducting structure with plate-type heat pipe
CN101210664A (en) * 2006-12-29 2008-07-02 富准精密工业(深圳)有限公司 Light-emitting diode lamps and lanterns
CN101451694A (en) * 2007-12-07 2009-06-10 富准精密工业(深圳)有限公司 LED lamp
CN201180973Y (en) * 2008-03-10 2009-01-14 龙国庆 High power LED lighting device

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