WO2010031293A1

WO2010031293A1 - Led projecting lamp

Info

Publication number: WO2010031293A1
Application number: PCT/CN2009/073393
Authority: WO
Inventors: 梁赖
Original assignee: Liang Lai
Priority date: 2008-09-20
Filing date: 2009-08-21
Publication date: 2010-03-25
Also published as: CN201259195Y

Abstract

A LED projecting lamp involves a strip-shaped heat dissipating member (1), light emitting assemblies (2) fixed in the heat dissipating member, and a lamp shade (3) encircling the heat dissipating member. The light emitting assembly (2) is consisted of a LED lamp (21) and an aluminum substrate (22) fixing the LED lamp (21). Each LED lamp (21) is covered by a light converging assembly (4) at the front end thereof. The heat dissipating member (1) is provided with a longitudinal groove (11). Three or more light emitting assemblies (2) constitute a set, and a set of the light emitting assemblies (2) are flatly attached to the bottom of the groove (11) and obliquely mounted on both edges of the groove (11).

Description

说明书一种 LED投光灯具 Instruction manual LED flood light fixture

[I] 技术领域 [I] Technical field

[2] 本发明涉及一种照明装置，更确切的说是一种 LED投光灯具。 [2] The present invention relates to a lighting device, and more particularly to an LED flooding lamp.

[3] 背景技术 [3] Background Art

[4] 在现有的各种广告牌、招牌、黑板及建筑物夜景等照明场合，都釆用了大量的投光灯，随着大功率 LED灯技术的成熟， LED灯以其节能、环保及长寿命等特点日益受到人们的青睐。 LED投光灯也日益受到人们重视。现有的 LED投光灯结构中， LED灯一般规则呈线性排列在平面上，并且釆用单一光束角的透光部件，这种结构形式的 LED投光灯存在如下缺陷： [4] A large number of floodlights are used in various existing billboards, signboards, blackboards and building night scenes. With the maturity of high-power LED lamp technology, LED lamps are energy-saving and environmentally friendly. And long life and other characteristics are increasingly favored by people. LED floodlights are also receiving increasing attention. In the existing LED floodlight structure, the LED lamps are generally arranged linearly on a plane, and a light-transmitting member having a single beam angle is used. The LED floodlight of this structure has the following drawbacks:

[5] 1.光利用率低。为了使光分布均匀，只能远离被照物。根据照度与距离平方成反比的原理，拉远距离只能使被照面照度明显降低，间接地浪费了电能； [5] 1. Low light utilization. In order to make the light distribution even, it can only be kept away from the object. According to the principle that the illuminance is inversely proportional to the square of the distance, the long distance can only make the illumination of the illuminated surface significantly lower, and the grounding wastes the electric energy;

[6] 2.灯具安装不牢靠，光容易偏离正常射向。由于工艺等原因，现有 LED投光灯需由多个灯或灯条组成照明***，而射向调节机构容易失效变向，造成个别灯具偏离正常射向； [6] 2. The installation of the lamp is not reliable, and the light is easy to deviate from the normal direction. Due to the process and other reasons, the existing LED floodlights need to be composed of a plurality of lamps or light bars to form a lighting system, and the shooting direction adjusting mechanism is prone to failure and change direction, causing individual lamps to deviate from the normal shooting direction;

[7] 3.光均匀度差。已有的梨形对称配光，光落差较大，造成被照面亮度相差大，即光均匀度差，而反光罩式的不对称配光在上下两边的光强比在 1.5/1以下，达不到合理的 2.5〜3/1左右，只能靠拉远距离来弥补，造成光及电能浪费； [7] 3. Poor light uniformity. The existing pear-shaped symmetrical light distribution has a large difference in light, which causes a large difference in the brightness of the illuminated surface, that is, the light uniformity is poor, and the intensity ratio of the reflector-type asymmetric light distribution on the upper and lower sides is less than 1.5/1. Less than a reasonable 2.5~3/1, it can only be compensated by pulling away distance, causing waste of light and electric energy;

[8] 4.安装不方便及影响被照物外观。由于现有 LED投光灯体积 [8] 4. Inconvenient installation and affect the appearance of the object. Due to the existing LED floodlight volume

庞大，既不方便安装，又不方便隐蔽，影响了被照物整体外观； Huge, not easy to install, and inconvenient to conceal, affecting the overall appearance of the object being treated;

[9] 5.容易发生玻璃破碎现象。由于防水需要釆用坚硬的玻璃来透光，而玻璃常因各种原因破碎，造成灯具功能的失效以及人身伤害。 [9] 5. Glass breakage is prone to occur. Because of the need to waterproof, hard glass is used to transmit light, and glass is often broken for various reasons, resulting in failure of the function of the lamp and personal injury.

[10] 发明内容 [10] Summary of the invention

[I I] 本发明所要解决的技术问题是克服现有技术的缺陷，提供一种光均匀度好、配光合理的 LED投光灯具。 [I I] The technical problem to be solved by the present invention is to overcome the drawbacks of the prior art and provide an LED flood light fixture with good light uniformity and reasonable light distribution.

[12] 本发明是通过以下技术方案实现的： [12] The present invention is achieved by the following technical solutions:

[13] —种 LED投光灯具，包括条状散热件、固定于散热件中的发光组件以及套于散热件外周的灯罩，发光组件由 LED灯以及固定 LED灯的铝基板组成，在每个 LED 灯前端套有聚光部件，所述的散热件中开有纵向的凹槽，各 LED灯平贴于凹槽底部以及倾斜安装于凹槽两边沿。 [13] A type of LED floodlighting fixture, comprising a strip heat sink, a light emitting component fixed in the heat sink, and a sleeve The lampshade of the outer periphery of the hot component, the light-emitting component is composed of an LED lamp and an aluminum substrate fixed with the LED lamp, and a concentrating component is sleeved at the front end of each LED lamp, and the heat-dissipating component has a longitudinal groove, and each LED lamp is flat. Installed at the bottom of the groove and obliquely on both sides of the groove.

[14] 进一步的，在散热件凹槽两侧外周设置有纵向的槽道，槽道中安装有与灯罩紧密接触的防水胶条，在散热件两端设置有防水胶垫以及防水堵头，防水胶垫、灯罩以及防水胶条与散热件形成水密封的密封腔。 [14] Further, a longitudinal channel is arranged on the outer circumference of both sides of the heat sink groove, and a waterproof rubber strip closely contacting the lamp cover is installed in the channel, and a waterproof rubber pad and a waterproof plug are disposed at both ends of the heat sink, and waterproof The gasket, the lampshade, and the waterproof strip form a watertight sealed cavity with the heat sink.

[15] 作为对上述方案的改进，所述由 LED灯及其铝基板组成的发光组件以三个或者三个以上为一组，每组均分布在凹槽底部以及凹槽的两边沿。 [15] As an improvement to the above scheme, the light-emitting assembly composed of the LED lamp and the aluminum substrate thereof is grouped in three or more, each of which is distributed at the bottom of the groove and both edges of the groove.

[16] 作为更进一步改进，在密封腔内背离聚光部件一侧的散热件以及灯罩上设置有利于空气流通加速散热件散热的通孔。 [16] As a further improvement, the heat dissipating member on the side facing away from the concentrating member in the sealed cavity and the lamp cover are provided with through holes for facilitating air circulation to accelerate heat dissipation of the heat dissipating member.

[17] 更进一步地，所述的聚光部件为光束角各异的透镜或反光杯，该透镜或反光杯上光束角各异，使对称配光混合成为一种不对称配光。 [17] Further, the concentrating member is a lens or a reflector having different beam angles, and the beam angles on the lens or the reflector are different, so that the symmetrical light distribution is mixed into an asymmetric light distribution.

[18] 为了增加兼容性，在需要将灯具安装于 T8型灯座或灯盘上吋，在散热件两端还可增加与 T8型灯座相匹配的灯头，灯头两电极接脚与 LED灯极脚电连接。 [18] In order to increase the compatibility, when the lamp needs to be mounted on the T8 type lamp holder or the lamp plate, the lamp holder matched with the T8 type lamp holder can be added at both ends of the heat dissipation member, and the two electrode pins and the LED lamp of the lamp holder are added. The poles are electrically connected.

[19] 相对现有技术而言，本发明具有如下优点： [19] Compared with the prior art, the present invention has the following advantages:

[20] 1.光利用率高。由于光为不对称配光，灯具与被照物的距离可缩短到 0.5米以下 [20] 1. High light utilization rate. Since the light is asymmetrically distributed, the distance between the luminaire and the object can be shortened to less than 0.5 m.

，比现有灯具所需的 1.5〜3米大大减少，光利用率提高，节省了电能； , greatly reduced by 1.5 to 3 meters required by existing lamps, improved light utilization, and saved electrical energy;

[21] 2.灯具结构牢固可靠，整体性好。由于没有受到工艺限制，灯具长度可达到 3〜[21] 2. The structure of the lamp is firm and reliable, and the integrity is good. Since there is no process limitation, the length of the lamp can reach 3~

4米甚至更长，整个照明***整体性好，减少灯具偏向机率； 4 meters or even longer, the overall lighting system is good overall, reducing the bias of the lamps;

[22] 3.光均匀度好。由于釆用三种对称配光，组成一种非对称配光，且为线性排列[22] 3. Good light uniformity. Due to the use of three symmetrical light distributions, an asymmetric light distribution is formed and linearly arranged.

，既保证光均匀性好，使光强随着距离变大而增强，被照面上下两边光强比达到 2.5/1以上，被照面各处亮度相差不大，光均匀度好； The light uniformity is ensured, and the light intensity is enhanced as the distance becomes larger. The intensity ratio of the two sides of the illuminated surface is 2.5/1 or more, and the brightness of the illuminated surface is not much different, and the light uniformity is good;

[23] 4.安装牢固，易于隐蔽。本 LED投光灯体积小，外形成细管状，容易固定，刮台风吋射向不容易改变，且细管状外形隐蔽性好，给人一种没有灯具的照明感觉； [23] 4. The installation is firm and easy to conceal. The LED floodlight has a small volume, and is formed into a thin tubular shape, which is easy to fix, the typhoon is not easy to change, and the thin tubular shape is concealed, giving a lighting feeling without a lamp;

[24] 5.没有玻璃破碎问题。由于釆用高强度的 PC作为灯罩，不存在玻璃破碎问题，而独特的防水防尘结构也大大减少灯具的防水防尘失效； [24] 5. There is no glass breakage problem. Since the high-strength PC is used as the lampshade, there is no glass breakage problem, and the unique waterproof and dustproof structure also greatly reduces the waterproof and dustproof failure of the lamp;

[25] 6.可实现对称及不对称配光两种形式。由于有三个面排布发光部件，当用三个面吋为不对称配光，用一个面吋为对称配光，这样有利于拓宽用途，当用作广告、招牌及黑板等照明吋用不对称配光，当用于建筑物夜景照明等用途吋用对称配光，增强立体感。 [25] 6. Both symmetrical and asymmetric light distribution can be realized. Since there are three faces arranged for the light-emitting parts, when using three The facial enamel is asymmetrical light distribution, and a facial enamel is used for symmetrical light distribution, which is beneficial for widening the use. When used as an advertising, signboard, blackboard, etc., it is used for asymmetric lighting of buildings, etc. Use symmetrical light distribution to enhance the three-dimensionality.

[26] 附图说明 [26] BRIEF DESCRIPTION OF THE DRAWINGS

[27] 附图 1为本发明实施例分解状态结构示意图； 1 is a schematic structural view of an exploded state of an embodiment of the present invention;

[28] 附图 2为本实施例横截面结构示意图； 2 is a schematic cross-sectional structural view of the present embodiment;

[29] 附图 3为本实施例发光组件在散热件凹槽中分布示意图； FIG. 3 is a schematic view showing the distribution of the light-emitting component in the groove of the heat sink according to the embodiment; FIG.

[30] 附图 4为本实施例发光组件位于凹槽左侧边沿结构示意图； [30] FIG. 4 is a schematic structural view of the light-emitting component of the embodiment in the left side edge of the groove;

[31] 附图 5为本实施例发光组件位于凹槽中间结构示意图； FIG. 5 is a schematic structural view of the light-emitting component in the middle of the groove according to the embodiment; FIG.

[32] 附图 6为本实施例发光组件位于凹槽右侧边沿结构示意图； [32] FIG. 6 is a schematic structural view of the light-emitting component of the embodiment in the right side edge of the groove;

[33] 附图 7为本实施例不对称配光混合生成示意图。 7 is a schematic diagram of asymmetric light distribution mixing in the present embodiment.

[34] 具体实施方式 [34] Specific implementation

[35] 为了便于本领域技术人员的理解，以下结合附图和具体实施例对本发明作进一步详细描述。 [35] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[36] 如附图 1〜7所示，本实施例公开的 LED投光灯具是一种适合于广告、招牌、黑板以及建筑物等照明用的投光灯，具有光利用率高、灯具结构牢固可靠、整体性好、光均匀度好、配光灵活合理的 LED投光灯具。 [36] As shown in FIGS. 1 to 7, the LED floodlighting lamp disclosed in this embodiment is a floodlight suitable for lighting for advertisements, signboards, blackboards, buildings, etc., and has high light utilization efficiency and lamp structure. LED floodlighting fixtures that are solid and reliable, have good integrity, good light uniformity, and flexible and reasonable light distribution.

[37] 该灯具包括长条状的散热件 1，在散热件 1外套有灯罩 3，在散热件 1两端部则依次设置有防水胶垫 14及防水堵头 15，在散热件 1上开有纵向的凹槽 11，凹槽 11中安装后发光组件 2。其中，散热件 1为导热性能良好的整体铝制件，并且沿纵向设置有增加散热面积的凸肋和槽道。 [37] The lamp comprises a long strip of heat sink 1 , a heat shield 1 is provided with a lamp cover 3 , and at both ends of the heat sink 1 , a waterproof rubber pad 14 and a waterproof plug 15 are arranged in sequence, and the heat sink 1 is opened. There is a longitudinal groove 11 in which the rear light-emitting assembly 2 is mounted. Among them, the heat dissipating member 1 is an integral aluminum member having good thermal conductivity, and ribs and channels for increasing the heat dissipating area are disposed in the longitudinal direction.

[38] 发光组件 2由 LED灯 21以及固定 LED灯 21的铝基板 22组成，在每个 LED灯 21前端套有聚光部件 ₄。聚光部件 4可为透镜或者反光杯，根据需要，在不同的 LED灯 21上可以安装光束角不同的透镜或反光杯，由三个平面上光束角各异的三种对称光混合成为一种不对称配光，以满足整个灯具对不对称配光的需要。 [38] The light-emitting unit 2 is composed of an LED lamp 21 and an aluminum substrate 22 to which the LED lamp 21 is fixed, and a light collecting member _{4 is} fitted around the front end of each of the LED lamps 21. The concentrating member 4 can be a lens or a reflector. If necessary, a lens or a reflector having a different beam angle can be mounted on different LED lamps 21, and three symmetrical lights having different beam angles on three planes can be mixed into one. Asymmetrical light distribution to meet the needs of the entire luminaire for asymmetric light distribution.

[39] 配光曲线原理：由于相邻两平面倾斜的角度大约等于安装于两平面上的透镜（反光杯)光束角度之差的一半左右，最终形成光线的叠加并生成不对称配光。 [39] Principle of light distribution curve: Since the angle between the inclination of the adjacent two planes is approximately equal to about half of the difference between the beam angles of the lenses (reflector cups) mounted on the two planes, the superposition of the light rays is finally formed and an asymmetric light distribution is generated.

[40] 为了使配光更加合理以及便于配光，由 LED灯 21及其铝基板 22组成的发光组件 2以三个或者三个以上为一组，均匀排列在凹槽 11中，且每组中铝基板 22的外形尺寸不一样，有分布于左侧边沿 221、正中央 222以及右侧边沿 223，而每组中 LE D灯 21位置偏向凹槽 11中心，使整个灯具中既有向正上方方向照射、又有向左侧、右侧照射的 LED灯 21。这种结构形式下的灯具与被照物的距离可缩短到 0.5米以下，比现有灯具所需的 1.5〜3米大为减少，光利用率提高，节省了电能，由于组成一种非对称配光，且为线性排列，既保证光均匀性好，使光强随着距离变大而增强，被照面上下两边光强比达到 2.5/1以上，被照面各处亮度相差不大，光均匀度好。 [40] In order to make the light distribution more reasonable and to facilitate light distribution, the light-emitting component composed of the LED lamp 21 and its aluminum substrate 22 2 is arranged in the groove 11 evenly in groups of three or more, and the outer dimensions of the aluminum substrate 22 in each group are different, and are distributed on the left side edge 221, the center side 222, and the right side edge 223. In each group, the position of the LE D lamp 21 is biased toward the center of the groove 11, so that the entire lamp has both the LED light 21 that is irradiated in the upward direction and the left side and the right side. The distance between the luminaire and the object under the structure can be shortened to less than 0.5 meters, which is much smaller than the 1.5~3 meters required by the existing luminaire, the light utilization rate is improved, and the electric energy is saved, due to the formation of an asymmetry Light distribution, and linear arrangement, to ensure good light uniformity, so that the light intensity increases with distance, the light intensity ratio of the two sides of the illuminated surface reaches 2.5/1 or more, and the brightness of the exposed surface is not much different, and the light is uniform. Good.

当根据需要须安装于 T8灯管支架或灯盘中吋，增加灯头 5为与现有 T8型号灯座相匹配的灯头，灯头 5的两电极接脚与 LED灯 21电极连接。这种结构形式便于将整个灯具作为 T8型灯管安装，扩充其安装途径及位置，同吋具有 T8灯管没有的指向性不对称配光。 When necessary, it must be installed in the T8 lamp holder or the lamp tray. The lamp holder 5 is a lamp holder that matches the existing T8 lamp holder. The two electrode pins of the lamp cap 5 are connected to the LED lamp 21 electrode. This type of structure facilitates the installation of the entire luminaire as a T8-type lamp, extending its mounting path and position, and has a directional asymmetric light distribution that is not available with the T8 lamp.

整个灯具安装牢固，易于隐蔽。本 LED投光灯体积小，外形成细管状，容易固定，刮台风吋射向不容易改变，且细管状外形隐蔽性好，给人一种没有灯具的照明感觉。 The entire luminaire is securely mounted and easy to conceal. The LED floodlight has a small volume, and is formed into a thin tubular shape, which is easy to fix. The wind turbine is not easy to change, and the thin tubular shape is concealed, giving a lighting feeling without a lamp.

为了增强其防水效果，在散热件 1凹槽 11两侧外周设置有纵向的槽道 12，槽道 1 2中安装有与灯罩 ₃紧密接触的防水胶条 13，散热件 1两端的防水胶垫 14、灯罩 3 以及防水胶条 13与散热件 1形成水密封的密封腔 17。为了利于散热件 1散热，在密封腔 17内背离聚光部件 4一侧的散热件凸肋部分以及灯罩 3上设置有利于空气流通加速散热件散热的通孔 16。为了消除现有技术中灯罩 3容易破碎的弊端，本方案中釆用的灯罩 3为高强度 PC材料，不存在玻璃破碎问题，而独特的防水防尘结构也大大减少灯具的防水防尘失效。 In order to enhance the waterproof effect, longitudinal grooves 12 are disposed on the outer circumferences of both sides of the recess 11 of the heat dissipating member 1, and a waterproof rubber strip 13 which is in close contact with the lamp cover ₃ is installed in the channel 12, and a waterproof rubber pad at both ends of the heat dissipating member 1 14. The lampshade 3 and the waterproof strip 13 form a watertight sealed chamber 17 with the heat sink 1. In order to facilitate the heat dissipation of the heat dissipating member 1, a through hole 16 for facilitating air circulation and accelerating heat dissipation of the heat dissipating member is disposed on the rib portion of the heat dissipating member on the side of the sealing chamber 17 facing away from the condensing member 4 and the lamp cover 3. In order to eliminate the drawback that the lampshade 3 is easily broken in the prior art, the lampshade 3 used in the present scheme is a high-strength PC material, and there is no glass breakage problem, and the unique waterproof and dustproof structure also greatly reduces the waterproof and dustproof failure of the lamp.

从上面实施例可以看出，本发明不论从技术方案还是技术效果，都是本领域技术人员不经过创造性劳动无法得出的方案，具有突出的实质性特点和显著的进步，应当符合发明专利授权要求。需要进一步说明的是，以上描述为本发明较佳的实施例，在不偏离本发明构思的前提下，对本发明进行的任何显而易见的修改，皆应包含在本发明的技术构思之内。 It can be seen from the above embodiments that the present invention is a solution that cannot be obtained by a person skilled in the art without creative work, regardless of the technical solution or the technical effect, and has outstanding substantive features and significant progress, and should conform to the invention patent authorization. Claim. It is to be noted that the above description is a preferred embodiment of the present invention, and any obvious modifications made to the present invention should be included in the technical idea of the present invention without departing from the inventive concept.

Claims

权利要求书 Claim

[1] 1.一种 LED投光灯具，包括条状散热件（1) 、固定于散热件（1) 中的发光组件（2) 以及套于散热件（1) 外周的灯罩（3) ，发光组件（2) 由 LE D灯（21) 以及固定 LED灯（21) 的铝基板 (22) 组成，在每个 LED灯（2 1) 前端套有聚光部件（4) ，其特征在于：所述的散热件（1) 中开有纵向的凹槽（11) ，各 LED灯（21) 平贴于凹槽（11) 底部以及倾斜安装于凹槽 (11) 两边沿。 [1] 1. An LED floodlighting lamp comprising a strip heat sink (1), a light emitting component (2) fixed in the heat sink (1), and a lampshade (3) sleeved on the outer periphery of the heat sink (1), The light-emitting component (2) is composed of an LE D lamp (21) and an aluminum substrate (22) for fixing the LED lamp (21), and a light collecting member (4) is disposed at a front end of each LED lamp (2 1), and is characterized in that: The heat dissipating member (1) is provided with a longitudinal groove (11), and each of the LED lamps (21) is flatly attached to the bottom of the groove (11) and obliquely mounted on both edges of the groove (11).

[2] 2.根据权利要求 1所述的 LED投光灯具，其特征在于：所述的凹槽（11) 两侧外周设置有纵向的槽道（12) ，槽道（12) 中安装有与灯罩（3) 紧密接触的防水胶条（13) ，在散热件（1) 两端设置有防水胶垫（14) 以及防水堵头（15) ，防水胶垫（14) 、灯罩（3) 以及防水胶条（13) 与散热件 ( 1) 形成水密封的密封腔（17) 。 [2] The LED light-emitting lamp according to claim 1, characterized in that: the groove (11) is provided with a longitudinal channel (12) on both sides of the circumference, and the channel (12) is installed in the channel (12) Waterproof rubber strip (13) in close contact with the lampshade (3), waterproof rubber pad (14) and waterproof plug (15), waterproof rubber pad (14), lampshade (3) at both ends of the heat sink (1) And the waterproof strip (13) and the heat sink (1) form a watertight sealed chamber (17).

[3] 3.根据权利要求 2所述的 LED投光灯具，其特征在于：在密封腔（17) 内背离聚光部件（4) 一侧的散热件（1) 和灯罩（3) 上均设置有散热通孔（16 [3] The LED floodlighting lamp according to claim 2, characterized in that: in the sealing cavity (17), the heat dissipating member (1) and the lamp cover (3) on the side facing away from the concentrating member (4) Set with thermal vias (16

[4] 4.根据权利要求 3所述的 LED投光灯具，其特征在于：所述 LED灯（21) 及其铝基板（22) 组成的发光组件（2) 以三个或者三个以上为一组，每组分别设置于凹槽（11) 底部以及凹槽（11) 的两边沿。 [4] The LED floodlighting lamp according to claim 3, wherein: the LED (21) and the aluminum substrate (22) comprise three or more light-emitting components (2) One set, each set is placed at the bottom of the groove (11) and the two edges of the groove (11).

[5] 5.根据权利要求 1〜4中任一项所述的 LED投光灯具，其特征在于：所述的聚光部件（4) 为透镜或反光杯。 The LED floodlighting lamp according to any one of claims 1 to 4, wherein the concentrating member (4) is a lens or a reflector.

[6] 6.根据权利要求 5所述的 LED投光灯具，其特征在于：在散热件（1) 两端还可增加与 T8型灯座相匹配的灯头（5) ，灯头（5) 两电极接脚与 LED灯极脚电连接。 [6] 6. The LED floodlighting lamp according to claim 5, characterized in that: at the two ends of the heat dissipating member (1), a lamp cap (5) matching the T8 type lamp holder can be added, and the lamp cap (5) two The electrode pins are electrically connected to the LED lamp pins.

[7] 7.根据权利要求 6所述的 LED投光灯具，其特征在于：在散热件（1) 上沿纵向设置有凸肋和槽道。 [7] The LED floodlighting lamp according to claim 6, wherein a rib and a groove are longitudinally disposed on the heat sink (1).