WO2012027944A1 - 一种led筒灯 - Google Patents
一种led筒灯 Download PDFInfo
- Publication number
- WO2012027944A1 WO2012027944A1 PCT/CN2010/080622 CN2010080622W WO2012027944A1 WO 2012027944 A1 WO2012027944 A1 WO 2012027944A1 CN 2010080622 W CN2010080622 W CN 2010080622W WO 2012027944 A1 WO2012027944 A1 WO 2012027944A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lamp
- led
- lamp body
- light source
- led downlight
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
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- 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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
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- 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
- F21V29/773—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 the planes containing the fins or blades having the direction of the light emitting axis
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- 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
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
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- 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 belongs to the field of semiconductor illumination, and in particular relates to an LED downlight. Background technique
- the downlight is a roof-mounted luminaire, which is widely used in shopping malls, large supermarkets, office places, hospitals, schools, hotels, high-end residences, etc. as a key lighting, which can brighten the environment and beautify the environment and add to the life. color.
- the commonly used downlights use a metal halide lamp or a fluorescent lamp as a light source.
- Such downlights generally have high power consumption, large heat generation, short lamp life, and the light color is not soft enough, and the human eye may feel glare and even glare.
- LED Light Emitting Diode
- LED Light Emitting Diode
- carriers in the semiconductor recombine, releasing excess energy and causing photon emission to generate visible light.
- the LED light source has high luminous efficiency and its light monochromaticity and narrow spectrum, and it can directly emit colored visible light without filtering. In the case of less power consumption and the same lighting effect, the power consumption is one eighth of the incandescent bulb and one-half of the fluorescent tube. Long service life, up to 100,000 hours. It has strong safety and reliability, low calorific value and no heat radiation. It is a cold light source. It can be safely touched and can precisely control the light type and illumination angle.
- the light color is soft, no glare, and it does not contain mercury, sodium and other substances that may be harmful to health.
- High controllability, built-in micro-processing system can control the intensity of light, adjust the way of light, and present a colorful seven-color brilliance to achieve a combination of light and art.
- the existing LED downlight solves some shortcomings of the conventional downlight using the conventional light source, but because the high-power LED is used as the light source, the heat generation is larger than that of the general low-power LED, and the lamp is used for a long time. The increase in temperature, in turn, causes the internal resistance of the LED downlight to become larger, making its life shorter.
- the LED downlight of the prior art has poor heat dissipation performance, and it is difficult to ensure the luminous quality and life of the high-power LED downlight. Summary of the invention
- An object of the present invention is to provide an LED downlight with simple structure and unique heat dissipation effect, characterized in that: the lamp body extends upward to form a plurality of heat dissipation ribs; the lamp urn and the lamp body are integrated structures Having a plurality of venting holes between the lamp housing and the lamp body; the LED light source assembly and the lamp cup are fixed on the lamp body; the back of the lamp urn is provided with a symmetrical edge spring; The side spring is retracted toward the lamp body; after the external force disappears, the side spring is opened to the outside of the lamp body, and the outermost diameter of the side spring is larger than the outermost diameter of the lamp cymbal.
- the light body is further provided with a receiving cavity, and the bottom of the receiving cavity is provided with a circuit board;
- An LED light source assembly is mounted on the circuit board;
- the lamp cup is mounted on a sidewall of the receiving cavity; and
- the light transmissive cover is fixed to the edge of the lamp cup to seal the receiving cavity.
- the heat dissipation ribs are radial or parallel strips or annular heat dissipation ribs.
- the LED downlight of the invention has the advantages of simple and reasonable structure, novel and unique, good heat dissipation effect and long service life; low cost, convenient installation and beautiful appearance.
- FIG. 1 is a schematic view showing a split structure of an LED downlight according to the present invention.
- Figure 2 is a schematic cross-sectional view of the LED downlight shown in Figure 1;
- Figure 3 is a perspective view of one direction of the LED downlight shown in Figure 1;
- Figure 4 is a perspective view of one direction of the LED downlight shown in Figure 1;
- Figure 5 is a schematic view showing air convection of the LED downlight shown in Figure 1;
- FIG 6-7 shows the installation status of the LED downlight shown in Figure 1.
- the LED downlight of the present invention comprises a lamp body 1, a lamp housing 2, an LED light source assembly 3 and a lamp cup 4; the lamp body extends upward to form a plurality of heat dissipation
- the rib 11 is integrated with the lamp body, and a plurality of vent holes 12 are disposed between the lamp rim and the lamp body; the LED light source assembly 3 and the lamp cup 4 are fixed to the lamp body 1 on;
- the back of the lamp holder 2 is provided with a symmetrical edge spring 21; when the external force acts, the side spring is folded toward the lamp body; after the external force disappears, the side spring is opened to the outside of the lamp body, the side The outermost diameter of the spring is larger than the outermost diameter of the lamp cymbal 2.
- the heat generated by the LED light source assembly 3 is radiated by the heat dissipation ribs 11 on the one hand;
- the hole 12 is formed to dissipate heat by air, as shown in FIG.
- the LED downlight of the present invention further includes a light transmissive cover 5 ;
- the lamp body 1 is provided with a receiving cavity downwardly, and a circuit board is arranged at the bottom of the receiving cavity.
- the LED light source assembly 3 is mounted on the circuit board;
- the lamp cup 4 is mounted on a sidewall of the accommodating cavity; and
- the translucent cover is fixed at an edge of the lamp cup 4 to seal the accommodating cavity.
- the heat dissipation ribs 11 are radial or parallel strips or annular heat dissipation ribs.
- the circuit board and the bottom of the receiving cavity are provided with a thermal conductive adhesive.
- the LEDs in the LED light source assembly 3 are monochromatic light or two-color light or multi-color light, and the color of the LED is constant or gradual or jump.
- the lamp body 1 is a lamp body made of a wear-resistant and corrosion-resistant metal material.
- the lamp holder 2 is a lamp holder made of aluminum alloy material or other wear-resistant and corrosion-resistant metal material.
- the lamp cup 4 is plated with a reflective film.
- the translucent cover 5 is a translucent cover made of acrylic, and a translucent cover made of other wear-resistant and heat-resistant materials can also be used; the surface is frosted or formed into a polygonal shape, and the lamp can be formed into an anti-glare effect.
- the plurality of venting holes 12 are symmetrically and evenly distributed with respect to the axis of the lamp body.
- the LED downlight further comprises a light source driving circuit, wherein the light source driving circuit is connected with the circuit board circuit; the light source driving circuit uses a temperature control circuit protection system to automatically adjust the temperature, protect the electrical component and extend the service life of the light source.
- the light source driving circuit uses a temperature control circuit protection system to automatically adjust the temperature, protect the electrical component and extend the service life of the light source.
- the LED downlight further comprises a bracket fixed to the heat dissipation rib 11 and connected to the external power circuit through the bracket light source driving circuit.
- the bracket is made of polycarbonate plastic and can also be made of metal or other materials.
- Step 1 Under the action of an external force, the side spring 21 is folded toward the lamp body; the LED downlight is placed in a circular hole opened in the ceiling. Inside;
- the second step the edge spring 21 passes through the edge of the circular hole opened in the ceiling; after the external force disappears, the side spring 21 is opened to the outside of the lamp body; because the outermost diameter of the side spring 21 is larger than the outermost side of the lamp rim The diameter of the LED downlight is stuck in a circular hole in the ceiling.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Description
一种 LED筒灯
技术领域
本发明属于半导体照明领域, 尤其涉及一种 LED筒灯。 背景技术
筒灯是装在屋顶的灯具, 其广泛应用于商场、 大型超市、 办公场所、 医院、 学校、 宾馆、 高档住宅等作为重点照明之用, 既可亮化环境, 又可以美化环境, 为生活增添色 彩。
目前普遍使用的筒灯多釆用金属卤化物灯或荧光灯作为光源。这种筒灯一般功耗较 高、发热较大、灯管寿命短, 而且光色不够柔和, 人眼直视会感到刺眼, 甚至产生眩光。
LED ( Light Emitting Diode ) , 又称发光二极管, 它们利用固体半导体芯片作为发光 材料, 当两端加上适当电压, 半导体中的载流子发生复合, 放出过剩的能量而引起光子 发射产生可见光。 LED光源发光效率高而且其光的单色性好、 光谱窄, 无需过滤可直接 发出有色可见光。 耗电量少同样照明效果的情况下, 耗电量是白炽灯泡的八分之一, 荧 光灯管的二分之一。 使用寿命长,可达 10万小时。 安全可靠性强, 发热量低, 无热辐射, 属于冷光源, 可以安全触摸并能精确控制光型及发光角度, 光色柔和, 无眩光, 不含汞、 钠元素等可能危害健康的物质。可控制性高,内置微处理系统可以控制发光强度,调节发 光方式, 呈现出绚丽多彩的七色光彩, 实现光与艺术结合。
现有的 LED筒灯解决了已有使用传统光源的筒灯存在的一些不足, 但由于釆用大 功率的 LED作为光源, 其发热量较一般的低功率 LED大, 并且长时间使用, 灯具内的 温度增加, 反过来导致 LED筒灯内部阻值变大, 使其使用寿命变短。 现有技术的 LED 筒灯的散热性能欠佳, 难以保证大功率的 LED筒灯发光品质和寿命。 发明内容
本发明的一个目的是提供一种结构简单独特, 且散热效果好的 LED筒灯, 其特征 在于: 所述灯体向上延伸形成多个散热筋条; 所述灯圏与灯体是一体化结构, 在所述灯 圏和灯体之间设有多个透气孔; 所述 LED光源组件和灯杯固定在所述灯体上; 所述灯 圏的背部设有对称的边弹簧; 在外力作用时, 所述边弹簧向灯体方向收起; 在外力消失 后, 所述边弹簧向灯体外侧张开, 所述边弹簧最外侧的直径大于灯圏最外侧的直径。
以上技术方案还可以通过以下方式进一步改进。
还包括透光罩; 所述灯体向下设有容纳腔, 所述容纳腔的底部设有电路板; 所述
LED光源组件安装在所述电路板上; 所述灯杯安装在容纳腔的侧壁上; 所述透光罩固定 在灯杯边缘, 将容纳腔密封。
所述散热筋条是放射状或平行条状或圆环状散热筋条。
本发明的 LED筒灯, 结构简单合理, 新颖独特, 且散热效果好, 使用寿命长; 且 成本低, 安装方便, 外形美观。 附图说明
下面结合附图和实施例对本发明做进一步详细的说明。
图 1为本发明的 LED筒灯分体结构示意图;
图 2为图 1所示 LED筒灯的横截面示意图;
图 3为图 1所示 LED筒灯的一个方向的立体示意图;
图 4为图 1所示 LED筒灯的一个方向的立体示意图;
图 5为图 1所示 LED筒灯的空气对流的示意图;
图 6-图 7为图 1所示 LED筒灯的安装状态。
其中, 附图标记如下:
1灯体: 11散热筋条, 12透气孔,
2灯圏: 21边弹簧;
3 LED光源组件; 4 灯杯; 5透光罩。 具体实施方式
为了使本发明的目的、 技术方案及优点更加清楚明白, 以下结合附图及实施例,对 本发明的 LED筒灯进行进一步详细说明。 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。
如图 1 , 图 2, 图 3和图 4所示, 本发明的 LED筒灯, 包括灯体 1 , 灯圏 2, LED 光源组件 3和灯杯 4; 所述灯体向上延伸形成多个散热筋条 11; 所述灯圏与灯体是一体 化结构, 在所述灯圏和灯体之间设有多个透气孔 12; 所述 LED光源组件 3和灯杯 4固 定在所述灯体 1上;
所述灯圏 2的背部设有对称的边弹簧 21 ;在外力作用时,所述边弹簧向灯体方向收 起; 在外力消失后, 所述边弹簧向灯体外侧张开, 所述边弹簧最外侧的直径大于灯圏 2 最外侧的直径。
LED光源组件 3产生的热量, 一方面通过散热筋条 11散热; 另一方面, 多个透气
孔 12形成的通过空气对流进行散热, 如图 5所示。
如图 1 , 图 2, 图 3和图 4所示, 本发明的 LED筒灯还包括透光罩 5; 所述灯体 1 向下设有容纳腔, 所述容纳腔的底部设有电路板; 所述 LED光源组件 3安装在所述电 路板上; 所述灯杯 4安装在容纳腔的侧壁上; 所述透光罩固定在灯杯 4边缘, 将容纳腔 密封。
优选的, 所述散热筋条 11是放射状或平行条状或圆环状散热筋条。
优选的, 所述电路板与所述容纳腔的底部设有导热胶。
优选的, 所述 LED光源组件 3中的 LED是单色光或双色光或多色光, LED的颜色 是不变或渐变或跳变。
优选的, 所述灯体 1是耐磨耐腐蚀金属材质制成的灯体。
优选的, 所述灯圏 2是铝合金材质或其它耐磨耐腐蚀金属材质制成的灯圏。
优选的, 所述灯杯 4镀有反射膜。
优选的, 所述透光罩 5是亚克力制成的透光罩, 也可使用其他耐磨耐热材料制成的 透光罩; 其表面进行磨砂处理或做成多边形形状, 可以形成灯具防眩光效果。
优选的, 所述多个透气孔 12相对于灯体的轴线对称均匀分布。
优选的, LED筒灯还包括光源驱动电路, 所述光源驱动电路与电路板电路连接;光 源驱动电路釆用温控电路保护系统, 对温度进行自动调节, 保护电器元件及延长光源的 使用寿命。
优选的, LED筒灯还包括支架, 所述支架固定在散热筋条 11上方, 通过支架光源 驱动电路与外部电源电路连接。 支架是聚碳酸酯塑料制成, 也可使用金属材料或其他材 料制成。
如图 6和图 7所示, LED筒灯的安装过程如下: 第一步: 在外力作用下, 所述边弹簧 21向灯体方向收起; 将 LED筒灯放入开在天 花板的圆孔内;
第二步: 边弹簧 21穿过开在天花板的圆孔的边缘; 在外力消失后, 所述边弹簧 21 向灯体外侧张开; 因为所述边弹簧 21最外侧的直径大于灯圏最外侧的直径, LED筒灯 卡在开在天花板的圆孔内。
最后应当说明的是, 很显然, 本领域的技术人员可以对本发明进行各种改 动和变型而不脱离本发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于 本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型。
Claims
1、 一种 LED筒灯, 包括灯体( 1), 灯圏 (2), LED光源组件(3)和灯杯(4); 其特征在于:
所述灯体( 1 ) 向上延伸形成多个散热筋条( 11 ); 所述灯圏 (2)与灯体( 1 )是一 体化结构, 在所述灯圏 (2)和灯体(1)之间设有多个透气孔(12); 所述 LED光源组 件( 3 )和灯杯( 4 ) 固定在所述灯体( 1 )上;
所述灯圏 (2) 的背部设有对称的边弹簧(21); 在外力作用时, 所述边弹簧(21) 向灯体(1)方向收起; 在外力消失后, 所述边弹簧(21)向灯体(1)外侧张开, 所述 边弹簧(21)最外侧的直径大于灯圏 (2)最外侧的直径。
2、 根据权利要求 1所述的 LED筒灯, 其特征在于:
还包括透光罩(5); 所述灯体( 1) 向下设有容纳腔, 所述容纳腔的底部设有电路 板; 所述 LED光源组件 (3)安装在所述电路板上; 所述灯杯(4)安装在容纳腔的侧 壁上; 所述透光罩(5) 固定在灯杯(4)边缘, 将容纳腔密封。
3、 根据权利要求 2所述的 LED筒灯, 其特征在于:
所述散热筋条( 11 )是放射状或平行条状或圆环状散热筋条。
4、 根据权利要求 1所述的 LED筒灯, 其特征在于:
所述电路板与所述容纳腔的底部设有导热胶。
5、 根据权利要求 1所述的 LED筒灯, 其特征在于:
所述 LED光源组件( 3 ) 中的 LED是单色光或双色光或多色光, LED的颜色是不 变或;新变或 if兆变。
6、 根据权利要求 1所述的 LED筒灯, 其特征在于:
所述灯体( 1 )是耐磨耐腐蚀金属材质制成的灯体。
7、 根据权利要求 1所述的 LED筒灯, 其特征在于:
所述灯圏 (2)是耐磨耐腐蚀金属材质制成的灯圏。
8、 根据权利要求 2所述的 LED筒灯, 其特征在于:
还包括光源驱动电路, 所述光源驱动电路与电路板电路连接。
9、 根据权利要求 1所述的 LED筒灯, 其特征在于:
所述透光罩(5)是耐磨耐热的透光罩。
10、 根据权利要求 1所述的 LED筒灯, 其特征在于:
所述多个透气孔( 12)相对于灯体的轴线对称均勾分布。
Applications Claiming Priority (2)
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CN2010205196928U CN201748237U (zh) | 2010-08-31 | 2010-08-31 | 一种led筒灯 |
CN201020519692.8 | 2010-08-31 |
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---|---|---|---|---|
CN102734650A (zh) * | 2011-04-08 | 2012-10-17 | 华能光电科技股份有限公司 | 发光二极管灯泡 |
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CN102322582A (zh) * | 2011-09-09 | 2012-01-18 | 福建省万邦光电科技有限公司 | 高白度基板led筒灯 |
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DE202013100276U1 (de) * | 2013-01-21 | 2013-02-01 | Briloner Leuchten Gmbh | Leuchtdiodenmodul und Leuchte mit mindestens einem Leuchtdiodenmodul |
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