WO2014008734A1 - 灯具及其全光角led灯泡 - Google Patents

灯具及其全光角led灯泡 Download PDF

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Publication number
WO2014008734A1
WO2014008734A1 PCT/CN2012/085555 CN2012085555W WO2014008734A1 WO 2014008734 A1 WO2014008734 A1 WO 2014008734A1 CN 2012085555 W CN2012085555 W CN 2012085555W WO 2014008734 A1 WO2014008734 A1 WO 2014008734A1
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Prior art keywords
led
heat sink
bulb
full
light
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PCT/CN2012/085555
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English (en)
French (fr)
Inventor
赵铱楠
江新华
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深圳和而泰照明科技有限公司
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Publication of WO2014008734A1 publication Critical patent/WO2014008734A1/zh

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Classifications

    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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]

Definitions

  • the present invention relates to the field of solid state lighting technology, and more particularly to a luminaire and a full-angle LED bulb. Background technique
  • LED lighting products integrating energy saving, environmental protection, health and safety have gradually replaced traditional lighting products. Due to the unidirectional illumination of the LED, it has a strong advantage in replacing the unidirectional illumination source and the luminaire. However, replacing LEDs that require super-angle or even full-angle light distribution, such as Class A, Class G incandescent bulbs, etc., requires special design to meet the requirements.
  • the main object of the present invention is to provide a luminaire and a full-angle LED bulb, which can realize the full light of the bulb at a low cost while maintaining the traditional appearance of the bulb. Evenly distributed light.
  • the present invention provides a full-angle LED bulb comprising a bulb and an LED heat sink, an LED lamp set and a heat sink housed in the bulb, the LED heat sink being located near the top of the bulb And being disposed integrally with or fixed to the heat sink end, the LED light group is fixed on the surface of the LED heat sink, the LED light group includes a forward light group and a lateral light group, and the forward light group is disposed at The LED heat sink end surface, the lateral light group is disposed on the side of the LE D heat sink, and the LE D heat sink side is at an angle of 30° to 60° with the horizontal plane.
  • the included angle is 45°.
  • the LED heat sink is symmetrically provided with four sides, and the number of LED lamps of the lateral lamp group on each side is equal to the number of LED lamps of the forward lamp group.
  • the heat sink is provided with a plurality of grooves.
  • the groove extends longitudinally along the heat sink, and a plurality of grooves divide the heat sink into a plurality of heat dissipating lobes.
  • the heat dissipation valve is provided with a through hole.
  • the through hole penetrates longitudinally along the heat dissipation fin.
  • the number of the grooves is equal to the number of sides of the LED heat sink.
  • the invention also provides a luminaire, the luminaire comprising a full-angle LED bulb, wherein the full-angle LED bulb is a full-angle LED bulb according to any of the above.
  • the lamp and the full-angle LED bulb provided by the invention have a forward lamp group and a lateral lamp group at an angle of 30° to 60° with the horizontal plane in the full-angle LED bulb.
  • the bulb has a uniform light source in the forward and lateral directions, thereby achieving uniform light distribution of the LED bulb at a low cost on the basis of maintaining the traditional appearance of the LED bulb.
  • the grooves, the heat dissipation fins and the through holes are provided on the heat sink of the full-angle LED bulb, the heat dissipation efficiency thereof is greatly improved.
  • FIG. 1 is a partial cross-sectional view showing an embodiment of a full-angle LED bulb of the present invention
  • FIG. 2 is a schematic diagram showing a simulation result of a light distribution curve of an embodiment of a full-angle LED bulb of the present invention
  • FIG. 4 is another schematic structural view of an embodiment of a heat sink of a full-angle LED bulb of the present invention
  • FIG. 5 is a schematic diagram of a full-angle LED bulb of the present invention.
  • FIG. 6 is a schematic diagram showing the simulation results of a heat dissipation effect of a preferred embodiment of the all-optical angle LED bulb of the present invention.
  • FIG. 1 is a partial cross-sectional view showing an embodiment of a full-angle LED bulb of the present invention.
  • the full-angle LED bulb of this embodiment includes a bulb 100 and an LED heat sink 200, an LED lamp set and a heat sink 300 housed in the bulb 100, and the LED heat sink 200 is located near the top of the bulb 100.
  • the heat sink 200 and the heat sink 300 are preferably disposed in the body to make the heat conduction efficiency higher and the heat dissipation speed faster.
  • the LED light group is fixed on the surface of the LED heat sink 200, and the LED light group includes a forward light group 210 and a lateral light group 220, and the forward light group 210 is disposed at an end surface of the LED heat sink 200, the lateral direction
  • the lamp group 220 is disposed on the side of the LED heat sink 200, and the side of the LED heat sink 200 forms an angle of 30° to 60° with the horizontal plane. Since the illumination angle of the LED lamp is 120°, the forward lamp group 210 performs light distribution mainly in the ⁇ 0° ⁇ 60° direction in the c- ⁇ coordinate system of the light intensity distribution, and the light distribution in the ⁇ 60° ⁇ 180° direction. This is achieved by the light source of the lateral light set 220.
  • the angle of incidence of the light-emitting surface of the lateral light group 220 i.e., the side of the LED heat sink 200
  • the shape is mostly biased toward ⁇ 90°, so it will change the original direction of the LED lamp, moving it from ⁇ 120° to ⁇ 90°, eventually resulting in the whole
  • the bulb has insufficient illumination uniformity. If the ⁇ is too small, the light-emitting direction will be biased toward ⁇ 180°, so that more light is incident on the plastic part located on the lamp cap, thereby reducing the light effect. Therefore, you should choose from 30° ⁇ 60°. It has been found through practice that the optimum angle ⁇ should be 45°. Therefore, in the embodiment, on the basis of maintaining the traditional appearance of the LED light bulb, the uniform light distribution of the LED light bulb is realized at a low cost.
  • the LED heat sink 200 in the embodiment is symmetrically provided with four sides, and the number of LED lamps of the lateral lamp group 220 on each side is equal to the number of LED lamps of the forward lamp group 210.
  • the most stringent requirements for all-angle bulbs are the luminescent properties of Energy Stars (hereinafter referred to as ES) for Class A bulbs (ie, standard incandescent bulbs). It requires that the change in light intensity within ⁇ 0°-135° cannot exceed 20% of the average light intensity in this range, and the luminous flux in ⁇ /135° ⁇ 180° cannot be lower than 5% of the total luminous flux.
  • the ratio of the illumination in each direction is the same as the solid angle ratio corresponding to the direction.
  • the solid angle in the omnidirectional direction is 4 ⁇
  • the solid angle of the range in which the light source 210 is in the range of ⁇ 0° to 60° is ⁇ 2 ⁇ 1 — ) ⁇ 1 — 60 . Therefore, the ratio of the luminous flux of the light emitted thereto to the luminous flux of the lateral light group 220 is 1:3.
  • the light of the lateral lamp group 220 in the range of ⁇ /180° to 225° cannot contribute, so the luminous flux of the lateral lamp group 220 needs to be three times the luminous flux of the forward lamp group 210.
  • the LED is roughly a Lambertian source, so the intensity distribution of the forward LED group 210 is
  • the LEDs used in the lateral light group 220 and the forward light group 210 When the lights are the same, the number of LED lights in all lateral LED light groups 220 should be positive light groups.
  • the number of LED lights in the 210 is 3.5 times.
  • the lateral light group 220 should have N groups, that is, the LED heat sink 200 should have N symmetrically disposed sides, and the lateral light group 220 on each side of the LED heat sink 200
  • the number of LED lamps should be equal to the number of LED lamps in the forward lamp group 210. According to the above results, N should be 3 or 4, but since the influence of the bulb is considered, a larger value needs to be selected, so it is preferable that the lateral lamp group has 4 groups, that is, the LED heat sink 200 has 4 sides. After the bulb is hooded, the light distribution curve of the whole lamp is simulated, and the simulation result is shown in Fig. 2.
  • the present embodiment fully satisfies the uniformity requirement of the ES, and achieves uniform illumination in the full light angle range of the LED bulb.
  • FIG. 3 is a schematic structural view of an embodiment of a heat sink of a full-angle LED bulb of the present invention
  • FIG. 4 is another schematic structural view of an embodiment of a heat sink of a full-angle LED bulb of the present invention.
  • the heat sink 300 of the full-angle LED bulb of this embodiment is provided with a plurality of grooves 310.
  • the purpose of the recess 310 is to enlarge the heat dissipating area and the heat dissipating space.
  • Each of the recesses 310 increases the sidewall formed by the recess 310 and the heat sink 300, that is, the heat dissipating surface is increased, and the recess is also provided.
  • the heat radiates space.
  • the groove can be arbitrarily set at any position of the heat dissipation flap, or can be any shape as long as the heat dissipation area and the heat dissipation space can be enlarged.
  • the recess 310 of the present embodiment preferably extends longitudinally along the heat sink 300.
  • the plurality of recesses 310 extend through the recess 300 to form a plurality of heat dissipation fins 320.
  • each of the heat dissipation fins 320 has a groove 310 on each of the left and right sides, each of the heat dissipation fins 320 adds two relatively large heat dissipation surfaces, thereby improving heat dissipation efficiency.
  • the number of grooves 310 and the LED heat sink The number of sides of 200 is equal. Since the LE D heat sink 200 of the present embodiment preferably has four sides, it is also preferable to have four grooves 310 each corresponding to one groove 310 so that the heat generated by it can be rapidly radiated and diffused.
  • a through hole 321 is defined in the heat dissipation valve 320.
  • the through hole 321 facilitates the circulation of air and increases the convection heat dissipation.
  • the through hole 321 extends longitudinally along the fin.
  • FIG. 5 is a block diagram showing a preferred embodiment of a full-angle LED bulb of the present invention.
  • the full-angle LED bulb of this embodiment after the recess 310, the heat dissipation fin 320 and the through hole 321 are disposed on the heat sink 300, the heat dissipation efficiency thereof is greatly improved.
  • the simulation results shown in FIG. 6 were obtained by software simulating the heat dissipation effect of the all-angle LED bulb of the present embodiment with a total power of 10 W. The results show that the full-angle LED bulb of this embodiment has a maximum LED illumination source temperature of only 84.5 ° C, while a typical LED junction temperature can withstand 125 ° C.
  • the heat sink 300 of the all-angle LED bulb of the present embodiment has a good heat dissipation capability and is sufficient to support a high power design.
  • the invention also proposes a lamp comprising a full-angle LED bulb, the full-angle LED bulb comprising a bulb and an LED heat sink, an LED lamp set and a heat sink housed in the bulb, the LED The heat sink is located near the top end of the bulb and is integrally disposed with or fixed to the heat sink end, and the LED light group is fixed on the LED heat sink surface, wherein the LE D light group includes a forward light group And a lateral light group, the forward light group is disposed on the LED heat sink end face, the lateral light group is disposed on the LED heat sink side, and the LED heat sink side is 30° ⁇ 60° from the horizontal plane.
  • the angle of the. Full-angle LED described in this embodiment The light bulb is a full-angle LED bulb according to the above embodiment of the present invention, and details are not described herein again. It should be understood that the above are only preferred embodiments of the present invention, and thus the scope of the patents of the present invention may not be limited, and the equivalent structure or equivalent process transformations made by the description of the present invention and the contents of the drawings may be directly or indirectly applied to Other related technical fields are equally included in the scope of patent protection of the present invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (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

公开了一种灯具及其全光角LED灯泡，全光角LED灯泡包括泡壳（100）以及容置于泡壳中的LED热沉（200）、LED灯组和散热器（300），LED热沉处于靠近泡壳顶端的位置且与散热器一体设置或者固定于散热器端部，LED灯组固定于LED热沉表面，包括正向灯组（210）和侧向灯组（220），正向灯组设于LED热沉端面，侧向灯组设于LED热沉侧面，LED热沉侧面与水平面成30°〜60°夹角。由于在全光角LED灯泡中设置了正向灯组以及与水平面成30°〜60°夹角的侧向灯组，灯泡的正向和侧向都具有均匀的光源，从而在保持LED灯泡美观大方的传统外形的基础上，以较低的成本实现了LED灯泡的全光角均匀配光。

Description

灯具及其全光角 LED灯泡 技术领域
本发明涉及固态照明技术领域，尤其是涉及一种灯具及其全光角 LED灯泡。 背景技术
基于 LED技术的快速发展、 成本的快速降低， 集节能、 环保、 健康、 安全等优点于一体的 LED照明产品已逐步替代传统的照明产 品。 由于 LED单向发光， 其对于替代单向发光的光源及灯具具有强 大的优势。 但是， 用 LED替代需要超大角度甚至全角度配光的光源 类产品， 如 A类、 G类白炽灯泡等等， 就需要特殊的设计才能满足 要求。
现有设计中， 通过在光源侧面垂直于水平面设置数个 LED发光 面， 使之往两侧发光， 以实现超大角度发光。 但此设计会使得整个灯 泡的发光均匀度不足， 因此需要再配以特定形状的扩散泡壳。 如此虽 然可以实现全角度的均匀配光。但是其生产工序较多，生产成本较高， 而且其外观轮廓偏离传统造型， 导致外形不够美观。 发明内容
本发明的主要目的在于提供一种灯具及其全光角 LED灯泡，在保 持灯泡美观大方的传统外形的基础上，以较低的成本实现灯泡的全光 角均匀配光。
为实现以上目的， 本发明提出一种全光角 LED灯泡， 包括泡壳以 及容置于泡壳中的 LED热沉、 LED灯组和散热器， 所述 LED热沉处于 靠近泡壳顶端的位置且与散热器一体设置或者固定于散热器端部，所 述 LED灯组固定于 LED热沉表面，所述 LED灯组包括正向灯组和侧向 灯组， 所述正向灯组设于所述 LED热沉端面， 所述侧向灯组设于所述 LE D热沉侧面， 所述 LE D热沉侧面与水平面成 30°~60°的夹角。
优选地， 所述夹角为 45°。
优选地， 所述 LED热沉对称的设有 4个侧面，每个侧面上的侧向 灯组的 LED灯数量与正向灯组的 LED灯数量相等。
优选地， 所述散热器上设有若干凹槽。
优选地， 所述凹槽沿所述散热器纵向贯穿， 且若干凹槽将所述散 热器分割形成若干散热瓣。
优选地， 所述散热瓣上设有通孔。
优选地， 所述通孔沿所述散热瓣纵向贯穿。
优选地， 所述凹槽的个数与所述 LED热沉的侧面个数相等。 本发明同时提出一种灯具， 该灯具包括一全光角 LED灯泡， 所述 全光角 LED灯泡为以上任一项所述的全光角 LED灯泡。 本发明所提供的一种灯具及其全光角 LED灯泡，由于在该全光角 LED灯泡中设置了正向灯组以及与水平面成 30°~60°夹角的侧向灯组, 使得灯泡的正向和侧向都有均匀的光源，从而在保持 LED灯泡美观大 方的传统外形的基础上，以较低的成本实现了 LED灯泡的全光角均匀 配光。 同时， 由于在全光角 LED灯泡的散热器上设置了凹槽、散热瓣 和通孔， 使得其散热效率得到了极大的提高。
附图说明 图 1是本发明的全光角 LED灯泡一实施例的局部剖视图； 图 2是本发明的全光角 LED灯泡一实施例的配光曲线模拟结果示 意图； 图 3 是本发明的全光角 LED灯泡的散热器一实施例的结构示意 图； 图 4是本发明的全光角 LED灯泡的散热器一实施例的另一结构 示意图； 图 5是本发明的全光角 LED灯泡一优选实施例的结构示意图； 图 6是本发明的全光角 LED灯泡一优选实施例的散热效果模拟结 果示意图。
本发明目的的实现、 功能特点及优点将结合实施例， 参照附图做 进一步说明。
具体实施方式
应当理解， 此处所描述的具体实施例仅仅用以解释本发明， 并不 用于限定本发明。 参见图 1 , 提出本发明的全光角 LED灯泡一实施例。 图 1是本发 明的全光角 LED灯泡一实施例的局部剖视图。 本实施例的全光角 LED 灯泡， 包括泡壳 100以及容置于泡壳 100中的 LED热沉 200、 LED灯 组和散热器 300, 所述 LED热沉 200处于靠近泡壳 100顶端的位置且 与散热器 300—体设置或者固定于散热器 300端部，本实施例优选热 沉 200与散热器 300—体设置， 以使其热量传导效率更高、散热速度 更快。 所述 LED灯组固定于 LED热沉 200表面， LED灯组包括正向灯 组 210和侧向灯组 220, 所述正向灯组 210设于所述 LED热沉 200端 面， 所述侧向灯组 220设于所述 LED热沉 200侧面， 所述 LED热沉 200侧面与水平面成 30°~60°的夹角。由于 LED灯的发光角度为 120° , 正向灯组 210在光强分布的 c- γ坐标系统中主要在 γ0°~60°方向上进 行配光，而 γ60°~180°方向上的配光则由侧向灯组 220的光源来实现。 在理想状态下， 侧向灯组 220的发光面 （也即 LED热沉 200的侧面 ) 与水平面的夹角 Θ应该为 60°。 但是， 由于灯泡外面罩有具有扩散作 用的泡壳 100, 其形状大部分偏向 γ90° , 所以它将改变 LED灯原有的 发光方向， 使之从 γ120°方向移向 γ90°方向， 最终造成整个灯泡的发 光均匀度不足。 而若 Θ过小， 则出光方向将偏向 γ180° , 使得较多光 线射到位于灯头的塑料件上， 从而降低了光效。 因此 Θ应从 30°~60° 中选择。 经实践发现， 最优的夹角 Θ应为 45°。 因此， 本实施例在保 持 LED灯泡美观大方的传统外形的基础上， 以较低的成本实现了 LED 灯泡的全光角均匀配光。
进一步地， 为了进一步提高全光角范围内发光的均匀度， 上述实 施例中的 LED热沉 200对称的设有 4个侧面，每个侧面上的侧向灯组 220的 LED灯数量与正向灯组 210的 LED灯数量相等。 目前的行业标 准中， 对全光角灯泡要求最严格的是能源之星 (Energy Star, 以下筒称 ES)对于 A类灯泡（即标准白炽灯形状的灯泡） 的发光特性要求。 它 要求 γ0°-135°内的光强变化不能超过该范围内平均光强的 20%, \/135°~180°内的光通量不能低于总光通量的 5%。为了进一步提高全光 角范围内发光的均匀度，就需要使得各个方向的发光比例与该方向对 应的立体角比例相同。 全方向的立体角为 4π, 而正向灯组 210发光 方向 Υ0°~60°所在范围的立体角 ^^2^1— )^^1— 60。)^, 因 此其出光的光通量与侧向灯组 220出光的光通量之比为 1:3。 但由于 灯头方向的结构限制，侧向灯组 220在 \/180°~225°范围的光不能做出 贡献， 因此侧向灯组 220的光通量需为正向灯组 210的光通量的 3 倍。
LED 大致为朗伯光源， 因此正向 LED 灯组 210 的光强分布为
Iy=Ir—。。 'cosy。 以过轴线的截面考虑二维的环带光通量， 可表示为 f 90。
① — ^^^ ^对于夹角 Θ为 45°的侧向 LED灯组 220来说， 其 强 则 是 二^。'^^-^。；） ， 截 面 内 的 光 通 量 φ 后， 其有效光通量
为 根据上面给出的正 =135° 1:3
向
Figure imgf000007_0001
和侧向出光的光通量比， 应有 ， 因此有
1:3.5 所以， 当侧向灯组 220和正向灯组 210使用的 LED 灯相同时， 则所有侧向 LED灯组 220中 LED灯的数量应为正向灯组
210中 LED灯数量的 3.5倍。
为了电源输出及 LED之间连接的便利，侧向灯组 220应有 N组， 即 LED热沉 200应有 N个对称设置的侧面， 且 LED热沉 200每个侧 面上的侧向灯组 220的 LED灯数量与正向灯组 210的 LED灯数量应该 相等。 根据上面结果， N应为 3或 4, 但由于考虑泡壳的影响， 需选 择较大的值， 因此优选侧向灯组为 4组， 即 LED热沉 200具有 4个侧 面。 在罩上泡壳之后， 对整灯的配光曲线进行模拟， 其模拟结果如图 2所示。 从模拟结果可见， 在\/0°~135°内光强的分布十分均匀， 光强 变化只有约 ±10°。 因此， 本实施例完全满足了 ES的均匀度要求， 实 现了 LED灯泡全光角范围内的均匀发光。
参见图 3、 图 4, 提出本发明的全光角 LED灯泡的散热器 300— 实施例。 其中， 图 3 是本发明的全光角 LED灯泡的散热器一实施例 的结构示意图； 图 4是本发明的全光角 LED灯泡的散热器一实施例 的另一结构示意图。本实施例的全光角 LED灯泡的散热器 300上设有 若干凹槽 310。 设置凹槽 310的目的是为了扩大散热面积， 以及散热 空间， 每设置一个凹槽 310, 就增加了凹槽 310与散热器 300形成的 侧壁， 也即增加了散热面， 同时凹槽也提供了热量辐射空间。 凹槽可 以随意设置于散热瓣的任何位置， 也可以是任何形状， 只要能扩大散 热面积和散热空间即可。 为了使散热面积以及散热空间达到最大， 本 实施例的凹槽 310优选沿所述散热器 300纵向贯穿，贯穿后若干凹槽 310就将所述散热器 300分割形成了若干散热瓣 320。 由于每个散热 瓣 320左右两边各有一个凹槽 310, 因此每个散热瓣 320也就增加了 两个比较大的散热面，提高了散热效率。 凹槽 310的个数与 LED热沉 200的侧面个数相等。 由于本实施例的 LE D热沉 200优选 4个侧面， 因此同样优选 4个凹槽 310, 每一侧面对应一个凹槽 310, 使其产生 的热量能够被迅速辐射扩散。
进一步地， 所述散热瓣 320上设有通孔 321。 该通孔 321有利于 空气的流通， 加大对流散热。 考虑到灯泡在实际应用中， 通常是竖直 放置， 因此优选沿所述散热瓣纵向贯穿的通孔 321。
参见图 5 , 图 5是本发明的全光角 LED灯泡一优选实施例的结构 示意图。本实施例中的全光角 LED灯泡，在其散热器 300上设置了凹 槽 310、 散热瓣 320和通孔 321后， 其散热效率得到了极大的提高。 通过软件模拟光源总功率为 10W的本实施例的全光角 LED灯泡的散 热效果， 得到如图 6所示的模拟结果。 该结果显示， 本实施例的全光 角 LED灯泡， 其 LED发光源的温度最高也只有 84.5 °C , 而一般的 LED 结温能承受 125°C。 因此， 本实施例的全光角 LED灯泡的散热器 300 具有良好的散热能力， 足够支持大功率的设计。 本发明同时提出一种灯具， 该灯具包括一全光角 LED灯泡， 所述 全光角 LED灯泡包括泡壳以及容置于泡壳中的 LED热沉、 LED灯组和 散热器，所述 LED热沉处于靠近泡壳顶端的位置且与散热器一体设置 或者固定于散热器端部， 所述 LED灯组固定于 LED热沉表面， 其特征 在于， 所述 LE D灯组包括正向灯组和侧向灯组， 所述正向灯组设于所 述 LED热沉端面，所述侧向灯组设于所述 LED热沉侧面，所述 LED热 沉侧面与水平面成 30°~60°的夹角。 本实施例中所描述的全光角 LED 灯泡为本发明中上述实施例所涉及的全光角 LED灯泡，在此不再赘述。 应当理解的是， 以上仅为本发明的优选实施例， 不能因此限制本 发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构 或等效流程变换， 或直接或间接运用在其他相关的技术领域， 均同理 包括在本发明的专利保护范围内。

Claims

权利要求书
1、 一种全光角 LED灯泡， 包括泡壳以及容置于泡壳中的 LED热 沉、 LED灯组和散热器， 所述 LED热沉处于靠近泡壳顶端的位置且与 散热器一体设置或者固定于散热器端部，所述 LED灯组固定于 LED热 沉表面， 其特征在于， 所述 LED灯组包括正向灯组和侧向灯组， 所述 正向灯组设于所述 LED热沉端面，所述侧向灯组设于所述 LED热沉侧 面， 所述 LE D热沉侧面与水平面成 30°~60°的夹角。
2、 根据权利要求 1所述的全光角 LED灯泡， 其特征在于， 所述 夹角为 45°。
3、 根据权利要求 1所述的全光角 LED灯泡， 其特征在于， 所述 LED热沉对称的设有 4个侧面， 每个侧面上的侧向灯组的 LED灯数量 与正向灯组的 LED灯数量相等。
4、 根据权利要求 1所述的全光角 LED灯泡， 其特征在于， 所述 散热器上设有若干凹槽。
5、 根据权利要求 4所述的全光角 LED灯泡， 其特征在于， 所述 槽沿所述散热器纵向贯穿 ,且若干 槽将所述散热器分割形成若干 散热瓣。
6、 根据权利要求 5所述的全光角 LED灯泡， 其特征在于， 所述 散热瓣上设有通孔。
7、 根据权利要求 6所述的全光角 LED灯泡， 其特征在于， 所述 通孔沿所述散热瓣纵向贯穿。
8、 根据权利要求 5-7任一项所述的全光角 LED灯泡， 其特征在 于， 所述凹槽的个数与所述 LED热沉的侧面个数相等。
9、 一种灯具， 包括一全光角 LED灯泡， 其特征在于， 所述全光角 LED 灯泡为如权利要求 1~8任一项所述的全光角 LED灯泡。
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