WO2012037904A1 - 一种可主动散热的led灯具 - Google Patents

一种可主动散热的led灯具 Download PDF

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Publication number
WO2012037904A1
WO2012037904A1 PCT/CN2011/080173 CN2011080173W WO2012037904A1 WO 2012037904 A1 WO2012037904 A1 WO 2012037904A1 CN 2011080173 W CN2011080173 W CN 2011080173W WO 2012037904 A1 WO2012037904 A1 WO 2012037904A1
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WO
WIPO (PCT)
Prior art keywords
substrate
led lamp
disposed
inner ring
motor
Prior art date
Application number
PCT/CN2011/080173
Other languages
English (en)
French (fr)
Inventor
李朝杯
Original Assignee
Li Chaobei
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
Priority claimed from CN2010205436298U external-priority patent/CN201819059U/zh
Priority claimed from CN2011200427583U external-priority patent/CN201957333U/zh
Application filed by Li Chaobei filed Critical Li Chaobei
Publication of WO2012037904A1 publication Critical patent/WO2012037904A1/zh

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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
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
    • 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
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • 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 utility model relates to an LED lamp, in particular to an LED lamp which can actively dissipate heat.
  • the temperature of the LED lamp bead solder joint is 65 ° C or higher, and if not increased, The volume of the heat sink cannot be increased.
  • LED luminaires that use air-cooled or water-cooled methods for active heat dissipation.
  • the active cooling structure using the air-cooling method a fan facing the LED and the substrate is mounted, and forced air is blown for cooling. This structure has a large volume, and the driving fan itself requires power consumption and high noise.
  • a water cooling device is required, which has a complicated structure, a large volume, and limited application. Summary of the invention
  • the purpose of the utility model is to provide an LED lamp which can be actively radiated by a simple structure and a better heat dissipation effect.
  • the technical solution of the utility model is: an LED lamp capable of actively dissipating heat, comprising two power source poles and a substrate provided with an LED in the casing, wherein the casing is provided with a motor, and the substrate is vertically sleeved on the On the motor rotating shaft, an air inlet and an air outlet are respectively disposed on the upper and lower sides of the substrate.
  • the substrate is vertically disposed on the motor shaft, and is driven to rotate by the motor to drive the surrounding air to flow.
  • the gas in the housing can be forcibly exchanged with the outside air to achieve convection.
  • the heat generated by the LED is taken away, and the internal temperature of the lamp is reduced, and the heat dissipation effect is better.
  • the motor itself is disposed in the casing, below the substrate, and the entire lamp has a small volume and a simple structure.
  • Providing blades around the substrate can speed up the flow of air and further improve the heat dissipation effect.
  • the substrate and the blade are integrally formed, and the blade is formed by directly punching and bending at the periphery of the substrate, thereby simplifying the manufacturing process and reducing the cost.
  • a fixing frame is disposed on a rotating shaft of the motor, and the substrate is disposed on the fixing frame to facilitate setting a substrate, and
  • the fixed frame and the substrate are integrated to reduce the volume of the housing and achieve miniaturization.
  • the fixing frame is provided with a brush connected to the substrate, and the power supply to the LED on the substrate is realized by the brush, which can reduce the setting of the wire and facilitate the connection of the substrate.
  • a first inner ring of the first ball bearing and a second inner ring of the second ball bearing are respectively disposed outside the rotating shaft, and an insulating layer is disposed on the surface of the rotating shaft at the second inner ring, and the first ball bearing is provided
  • An outer ring and a second outer ring of the second ball bearing respectively connect the two power terminals, and the second inner ring of the rotating shaft and the second ball bearing respectively connect the two poles on the substrate.
  • the rotating shaft of the electrode is fixed by two ball bearings.
  • the ball bearing is composed of a conductive outer ring, a ball and an inner ring
  • the outer rings of the two roller bearings are respectively connected to the two electrodes, so the first ball bearing, the rotating shaft, the substrate,
  • a closed power supply circuit can be formed between the second ball bearings, and since the substrate rotates coaxially with the rotating shaft, there is no relative movement between the second outer ring and the substrate, and the relatively moving parts on the entire circuit are balls, and the balls themselves have Strong wear resistance, so the electrical conductivity of the whole circuit is good, it will not affect the conductivity due to friction, and it is safe and reliable to use.
  • An elastic member is disposed between the second inner ring and the motor housing. An elastic force can be applied to the shaft to overcome the axial turbulence generated by the shaft during motion.
  • the utility model has the advantages of simple structure, small volume, convenient manufacture, good heat dissipation effect, long service life of the LED, good electrical conductivity, safe and reliable use, and no safety effect due to relative motion.
  • Figure 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 is a plan view of the substrate in the first embodiment of the present invention.
  • FIG. 3 is a schematic structural view of Embodiment 2 of the present invention.
  • an LED lamp capable of actively dissipating heat
  • the casing 1 is a hollow cup-shaped body, and a lens 12 and a cover 11 are disposed at an opening thereof, and a motor 4 with a rotating shaft 5 is disposed inside the casing 1 .
  • the rotating shaft 5 is provided with a fixing frame 7, and the fixing frame 7 is provided with a substrate 2 with LED lamp beads 3.
  • the fixing frame 7 is further provided with a brush 10 electrically connected to the substrate 2, under the motor 4
  • a driving power source 13 is provided to supply electric energy for moving the motor 4, and the driving power source may be a battery or an external power source similar to the LED lamp bead 3.
  • an air inlet 8 and an air outlet 9 are provided in the casing 1 on the upper and lower sides of the substrate 2.
  • the air inlet 8 is disposed above the substrate 2, and the air outlet 9 is disposed below the substrate 2.
  • an integrated blade 6 is provided around the substrate 2.
  • the substrate 2 may be an aluminum plate in which the position of the LED lamp bead is reserved, and is formed by punching. At the time of punching, the periphery can be punched into a blade-shaped side and then bent to form a blade.
  • the motor 4 rotates, the substrate 2 can rotate with the fixed frame 7, and the brush 10 can provide a continuous power supply, and the portion can adopt a structure similar to a motor brush.
  • FIG. 3 it is another actively dissipative LED lamp, which comprises a substrate 2, a motor 4, a positive electrode 21 and a negative electrode 22, wherein the rotating shaft 5 of the motor 4 is fixed by a first ball bearing and a second ball bearing, wherein A ball bearing is composed of a first outer ring 14, a first ball 15 and a second inner ring 16, and the second ball bearing is composed of a second outer ring 17, a second ball 18 and a second inner ring 19, wherein the first inner ring 16 and the second inner ring 19 are sleeved outside the rotating shaft 5, and the surface of the rotating shaft 5 at the sleeve of the second inner ring 19 is provided with an insulating layer 20.
  • An elastic member 23 is provided between the second inner ring 19 and the housing of the motor 4, and an elastic force is applied thereto to overcome the axial sway generated by the rotating shaft 5 during the movement.
  • the first outer ring 14 is connected to the positive electrode 21, the second outer ring 17 is connected to the negative electrode 22, and the elastic member 23 is connected to the conductive sheet 24 of the substrate 2.
  • the outer periphery of the substrate 2 is provided with integrally structured vanes 6.
  • the shaft 5 of the motor is supported by two ball bearings, and the elastic buffer of the elastic member 23 can be effectively positioned, and the turbulence during rotation is also small.
  • the current introduced from the positive electrode 21 is transmitted to the rotating shaft 5 through the first outer ring 14, the first ball 15, and the first inner ring 16, and is transmitted to one electrode of the substrate 2 through the rotating shaft 5, and the loop current of the substrate 2 passes through the conductive sheet 24.
  • the elastic member 23, the second inner ring 19, the second ball 18, and the second outer ring 17 are transmitted to the negative electrode 22 to form a closed loop.
  • the first inner ring 16 and the second inner ring 19 respectively rotate with the rotating shaft 5, and the elastic member 23 and the second inner ring 19 move simultaneously without relative movement, and the rotating shaft 5 and the substrate 2 rotate coaxially. In the entire circuit, only the first ball is rotated.
  • the ball 15 and the second ball 18 have relative motion, because the ball is usually a wear-resistant member, the relative movement does not damage the surface, the electrical conductivity is good, and the life is long, and the use is safer and more reliable.
  • the position between the other components in the circuit is relatively fixed and no friction occurs. Due to the rotation of the substrate, The surrounding air is forced to flow, and the heat dissipation effect is better.
  • the motor 4 is a DC motor including a stator and a rotor portion, which can be formed by a conventional structure, and the ball bearing can also be made using an existing conductive ball bearing.
  • the substrate 2 is disposed in the casing 1, and the casing of the motor 4 is fixedly disposed in the casing 1. The following is a comparative experiment to illustrate the heat dissipation effect of the lamp of the present invention.
  • the lamp with the structure of the embodiment of the present invention is provided with 6 LED lamp beads, each power 1W;
  • Contrast lamps 1 Existing lamps with aluminum heat sinks, with 6 LED beads, each 1W;
  • Contrast lamps 2 Existing lamps with aluminum heat sinks, 3 LED bead lamps, each with 1W power. experimental method:
  • thermocouple wire temperature probes are respectively placed on the lamp bead solder joints, the inner wall of the casing, and the outer wall of the casing, and the lamps are respectively lit.
  • the temperature after 2 hours and 4 hours.
  • the LED lamp with the structure of the embodiment of the present invention has the temperature of the lamp bead solder joint and the inside and outside of the casing being smaller than the existing lamps of the same power, and the temperature of the existing lamp with the low power is close, so
  • the temperature of the LED lamp bead can be significantly reduced, the power per unit volume can be increased, and the life of the LED can be prolonged.

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  • 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)

Description

一种可主动散热的 LED灯具 技术领域
本实用新型涉及 LED灯具， 尤其是涉及一种可以主动散热的 LED灯具。 背景技术
LED在工作时， 会散发出大量的热量， 功率越大， 散发的热量就越多， 限制了其功率 的提升。 目前常见的 LED灯具多采用被动散热方式， 即在 LED基板上通过连接铝、 陶瓷或 塑料等材质的散热件， 通过传导将 LED散发出的热量传递到散热件上对外辐射， 增加散热 面积， 但这种散热方式的缺陷是： 对散热件的材料要求高， 体积较大， 散热效果不明显。 例如输出 3*1W的 LED灯泡， 采用被动散热方式， 在焊接 LED灯珠的基板上连接铝制散热 件， 点亮后， 其 LED灯珠焊点处温度为 65 °C以上， 而且如不增加散热件的体积， 其功率 无法再加大。现在也出现了一些采用风冷或水冷方式进行主动散热的 LED灯具。采用风冷 方式的主动散热结构中， 安装有正对 LED及基板的风扇， 强制吹风进行冷却， 这种结构体 积较大， 而且驱动风扇本身需要耗电， 噪声也高。 采用水冷方式的主动散热结构中， 需要 设置水冷装置， 其结构复杂， 体积较大， 应用场合有限。 发明内容
本实用新型的目的是提供一种结构简单、 散热效果更好的可主动散热的 LED灯具。 本实用新型的技术解决方案是： 一种可主动散热的 LED灯具， 包括两个电源极以及设 置在壳体内且带有 LED的基板， 所述壳体内设有电机， 所述基板垂直套设在电机转轴上， 在所述基板上下两侧的壳体上分别设有进风口和出风口。
基板垂直设置在电机转轴上， 被电机驱动转动， 带动起周围的空气流动， 通过壳体上 分别设置的进风口和出风口， 壳体内的气体可以与外界空气进行强制交换， 实现对流， 这 样， LED产生的热量被带走， 灯具内部温度减低， 散热效果更好。 而且电机本身设置在壳 体内， 基板下方， 整个灯具的体积较小， 结构简单。
在所述基板周边设有叶片， 可以加快空气的流动速度， 进一步提高散热效果。
所述基板和所述叶片为一体结构， 通过在基板周边直接冲制并折弯而形成叶片， 从而 简化制造工序， 减少成本。
所述电机的转轴上设有固定架， 所述基板设置在该固定架上， 方便设置基板， 可以将 固定架和基板一体化设计， 从而减小壳体的体积， 实现小型化。
所述固定架上设有与所述基板相连接的电刷， 通过电刷实现对基板上 LED的供电， 可 以减少导线的设置， 同时方便基板的连接。
所述转轴外分别套设第一滚珠轴承的第一内环以及第二滚珠轴承的第二内环，在第二 内环处的所述转轴表面上设有绝缘层，第一滚珠轴承的第一外环和第二滚珠轴承的第二外 环分别连接两个所述电源极，所述转轴和第二滚珠轴承的第二内环分别连接所述基板上的 两极。电极的转轴通过两个滚珠轴承固定， 由于滚珠轴承由导电的外环、滚珠和内环组成， 两个滚轴轴承的外环分别与两个电极相连， 因此第一滚珠轴承、 转轴、 基板、 第二滚珠轴 承之间可以形成一个闭合的电源回路， 而且由于基板与转轴同轴转动， 第二外环与基板之 间也没有相对运动，整个回路上相对运动部件就是滚珠，而滚珠本身就有较强的耐磨性能， 因此整个回路的导电性能良好， 不会因为摩擦而影响导电性， 使用安全可靠。
在所述第二内环与电机壳体之间设有弹性件。可以对转轴施加一个弹性力， 以克服转 轴在运动时产生的轴向窜动。
本实用新型的优点是： 结构简单， 体积小， 制造方便， 散热效果好， LED的使用寿命 可以得到延长， 导电性能良好，使用安全可靠， 不会因为相对运动影响其使用安全性。 附图说明
附图 1为本实用新型实施例 1的结构示意图；
附图 2为本实用新型实施例 1中基板的俯视图；
附图 3为本实用新型实施例 2的结构示意图；
1、 壳体， 2、 基板， 3、 LED灯珠， 4、 电机， 5、 转轴， 6、 叶片， 7、 固定架， 8、 进 风口， 9、 出风口， 10、 电刷， 11、 壳盖， 12、 透镜， 13、 驱动电源， 14、 第一外环， 15、 第一滚珠， 16、 第一内环， 17、 第二外环， 18、 第二滚珠， 19、 第二内环， 20、 绝缘层， 21、 正极， 22、 负极， 23、 弹性件， 24、 导电片。 具体实施方式
实施例 1 :
参阅图 1， 为一种可主动散热的 LED灯具， 其壳体 1为中空杯状体， 其开口处设有透 镜 12和壳盖 11， 在壳体 1内部设有带转轴 5的电机 4， 转轴 5上设有固定架 7， 固定架 7 上设有带 LED灯珠 3的基板 2， 固定架 7上还设有与基板 2电连接的电刷 10， 电机 4下方 设有驱动电源 13， 供应电机 4运动的电能， 该驱动电源可以是电池， 也可以使用同 LED 灯珠 3同样的外接电源。 在基板 2上下两侧的壳体 1上设有进风口 8和出风口 9， 本实施 例中， 进风口 8设置在基板 2的上方， 出风口 9设置在基板 2的下方。
参阅图 2， 在基板 2的周边设有一体化的叶片 6。 基板 2可以是预留有 LED灯珠灯位 的铝板， 通过冲制制成。 在冲制时， 可以将其周边冲裁为叶片形的边， 然后经过折弯， 形 成叶片。 在电机 4转动时， 基板 2可随固定架 7—起转动， 电刷 10可以提供一个持续的 电能供应， 该部分可以采用类似电机电刷的结构。
当基板 2随电机 4转动时，在周边的叶片 6的作用下，壳体 1内的空气开始强制流动， 并通过进风口 8和出风口 9同外界的空气进行对流，将外界温度较低的空气引入并快速流 经基板 2和 LED周围， 将 LED灯珠 3发出的热量带走， 实现主动散热。 由于基板是水平转 动， 透过透镜射出的灯光不会变化， 灯具的使用效果不受影响。 实施例 2:
参阅图 3， 为另一种可主动散热的 LED灯具， 其包括基板 2、 电机 4、 正极 21和负极 22，其中电机 4的转轴 5通过由第一滚珠轴承和第二滚珠轴承固定， 其中第一滚珠轴承由 第一外环 14、 第一滚珠 15和第二内环 16组成， 第二滚珠轴承由第二外环 17、 第二滚珠 18以及第二内环 19组成， 其中第一内环 16和第二内环 19套设在转轴 5外， 在第二内环 19套设处的转轴 5表面设有绝缘层 20。 第二内环 19与电机 4壳体之间设有弹性件 23， 对其施加一个弹性力， 以克服转轴 5在运动时产生的轴向窜动。第一外环 14连接正极 21， 第二外环 17连接负极 22， 弹性件 23连接基板 2的导电片 24。 基板 2外周边设有一体结 构的叶片 6。
电机的转轴 5通过两个滚珠轴承支撑， 再加上弹性件 23的弹力缓冲， 可以有效的定 位， 转动时的窜动也较小。
从正极 21引入的电流经过第一外环 14、第一滚珠 15和第一内环 16传递到转轴 5上， 通过转轴 5传递到基板 2的一个电极上， 基板 2的回路电流通过导电片 24、 弹性件 23、 第二内环 19、 第二滚珠 18、 第二外环 17传递到负极 22上， 形成闭合的回路。 第一内环 16和第二内环 19分别随转轴 5转动，弹性件 23与第二内环 19同时运动，没有相对运动， 转轴 5和基板 2同轴转动， 整个回路中， 只有第一滚珠 15和第二滚珠 18存在相对运动， 因为滚珠通常为耐磨件， 相对运动不会破坏其表面， 导电性能良好， 而且其寿命长， 使用 更安全可靠。 而回路中其它部件之间的位置相对固定， 没有摩擦产生。 由于基板转动， 其 周围的空气被强制流动， 散热效果更好。
本实施例中电机 4为直流电机， 其包括定子和转子部分， 可采用常规结构设置， 滚珠 轴承也可使用现有的导电的滚珠轴承制成。基板 2设置在壳体 1内， 电机 4的壳体固定设 置在壳体 1内。 以下通过对比性实验说明本实用新型灯具的散热效果。
实验设备：
采用本实用新型实施例结构的灯具， 灯具设有 6个 LED灯珠， 每个功率 1W;
对比灯具 1 : 采用铝制散热件的现有灯具， 设有 6个 LED灯珠， 每个功率 1W;
对比灯具 2: 采用铝制散热件的现有灯具， 灯具设有 3个 LED灯珠， 每个功率 1W。 实验方法：
将热偶线温度探头分别放置在灯珠焊点、 壳体内壁、 壳体外壁上， 分别记录灯具点亮
2小时、 4小时后的温度。
对比效果见表 1 :
Figure imgf000006_0001
通过上述对比可以看出， 采用本实用新型实施例结构的 LED灯具， 灯珠焊点和壳体内 外的温度均小于同功率的现有灯具， 其与小功率的现有灯具温度接近， 因此可以说明， 使 用本实用新型实施例的主动散热结构， 可以显著降低 LED灯珠工作时的温度， 提高单位体 积下的功率， 延长 LED的寿命。
上列详细说明是针对本实用新型可行实施例的具体说明，该实施例并非用以限制本实 用新型的专利范围， 凡未脱离本实用新型所为的等效实施或变更， 均应包含于本案的专利 范围中。

Claims

权利 要 求 书
1、 一种可主动散热的 LED灯具， 包括两个电源极以及设置在壳体内且带有 LED的基板， 其特征在于： 所述壳体内设有电机， 所述基板垂直套设在电机转轴上， 在所述基板上下两 侧的壳体上分别设有进风口和出风口。
2、 根据权利要求 1所述的可主动散热的 LED灯具， 其特征在于： 在所述基板周边设有叶 片。
3、 根据权利要求 2所述的一种可主动散热的 LED灯具， 其特征在于： 所述基板和所述叶 片为一体结构
4、 根据权利要求 1、 2或 3所述的一种可主动散热的 LED灯具， 其特征在于： 所述电机的 转轴上垂直套设有固定架， 所述基板设置在该固定架上。
5、 根据权利要求 4所述的一种可主动散热的 LED灯具， 其特征在于： 所述固定架上设有 与所述基板相连接的电刷。
6、 根据权利要求 1或 2或 3所述的一种可主动散热的 LED灯具， 其特征在于： 所述转轴 外分别套设第一滚珠轴承的第一内环以及第二滚珠轴承的第二内环，在第二内环处的所述 转轴表面上设有绝缘层，第一滚珠轴承的第一外环和第二滚珠轴承的第二外环分别连接两 个所述电源极， 所述转轴和第二滚珠轴承的第二内环分别连接所述基板上的两极。
7、 根据权利要求 6所述的一种可主动散热的 LED灯具， 其特征在于： 在所述第二内环与 电机壳体之间设有弹性件。
PCT/CN2011/080173 2010-09-26 2011-09-26 一种可主动散热的led灯具 WO2012037904A1 (zh)

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CN2010205436298U CN201819059U (zh) 2010-09-26 2010-09-26 一种可主动散热的led灯具
CN201120042758.3 2011-02-21
CN2011200427583U CN201957333U (zh) 2011-02-21 2011-02-21 一种可主动散热的电路基板

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CN2486832Y (zh) * 2001-01-31 2002-04-17 吴耀军 五彩风转霓虹灯
CN1440047A (zh) * 2002-02-22 2003-09-03 Lg电子株式会社 用于阻挡无电极照明系统周围空气的装置
CN101048053A (zh) * 2006-03-29 2007-10-03 徐富雄 无线遥控的转动式显示器
CN101187465A (zh) * 2006-11-21 2008-05-28 亨特风扇公司 带加热器的灯
WO2009071111A1 (en) * 2007-12-07 2009-06-11 Osram Gesellschaft mit beschränkter Haftung Heat sink and lighting device comprising a heat sink
CN101639171A (zh) * 2008-07-31 2010-02-03 东芝照明技术株式会社 灯泡形灯
CN201819059U (zh) * 2010-09-26 2011-05-04 李朝杯 一种可主动散热的led灯具
CN201957333U (zh) * 2011-02-21 2011-08-31 李朝杯 一种可主动散热的电路基板

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2486832Y (zh) * 2001-01-31 2002-04-17 吴耀军 五彩风转霓虹灯
CN1440047A (zh) * 2002-02-22 2003-09-03 Lg电子株式会社 用于阻挡无电极照明系统周围空气的装置
CN101048053A (zh) * 2006-03-29 2007-10-03 徐富雄 无线遥控的转动式显示器
CN101187465A (zh) * 2006-11-21 2008-05-28 亨特风扇公司 带加热器的灯
WO2009071111A1 (en) * 2007-12-07 2009-06-11 Osram Gesellschaft mit beschränkter Haftung Heat sink and lighting device comprising a heat sink
CN101639171A (zh) * 2008-07-31 2010-02-03 东芝照明技术株式会社 灯泡形灯
CN201819059U (zh) * 2010-09-26 2011-05-04 李朝杯 一种可主动散热的led灯具
CN201957333U (zh) * 2011-02-21 2011-08-31 李朝杯 一种可主动散热的电路基板

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