CN205746098U - LED lamp radiating by utilizing surface of lampshade - Google Patents
LED lamp radiating by utilizing surface of lampshade Download PDFInfo
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Abstract
本实用新型涉及发热设备散热技术领域，尤其涉及一种利用灯罩表面散热的LED灯具。该LED灯具包括LED光源模块和灯罩，其中所述LED光源模块与所述灯罩的上端相连，在所述灯罩的外表面上设有若干翅片换热器。该LED灯具不仅能够有效控制LED工作时的温度，还能有效降低灯具整体的尺寸及重量，使得整个LED灯具具有结构简单紧凑、组装方便、重量轻、可靠性高、成本低、散热效果好的优点。
The utility model relates to the technical field of heat dissipation of heating equipment, in particular to an LED lamp which utilizes the surface of a lampshade to dissipate heat. The LED lamp includes an LED light source module and a lampshade, wherein the LED light source module is connected to the upper end of the lampshade, and several fin heat exchangers are arranged on the outer surface of the lampshade. The LED lamp can not only effectively control the temperature of the LED when it is working, but also effectively reduce the overall size and weight of the lamp, so that the entire LED lamp has a simple and compact structure, convenient assembly, light weight, high reliability, low cost, and good heat dissipation effect. advantage.
Description
技术领域technical field
本实用新型涉及LED灯具散热技术领域，尤其涉及一种利用灯罩表面散热的LED灯具。The utility model relates to the technical field of heat dissipation of LED lamps, in particular to an LED lamp which uses the surface of a lampshade to dissipate heat.
背景技术Background technique
近年来，从住宅、医院、工厂、体育馆到街道、广场等各种室内室外的大量照明需求极大地促进了LED技术的快速发展。LED光源由于具有电光转化效率高、体积小、亮度高、成本低、防水、防震能力强、寿命长、材料环保安全等优点，逐渐取代白炽灯和荧光灯成为最主要的绿色光源之一。In recent years, a large number of indoor and outdoor lighting demands from residences, hospitals, factories, gymnasiums to streets and squares have greatly promoted the rapid development of LED technology. Due to the advantages of high electro-optical conversion efficiency, small size, high brightness, low cost, waterproof, shockproof, long life, and environmentally friendly and safe materials, LED light sources gradually replace incandescent lamps and fluorescent lamps as one of the most important green light sources.
虽然LED相对于白炽灯具有较高的发光效率，但发光效率通常在20％～30％之间，有70％～80％以上的能量转化成了热，而过高的温度会引起LED的光输出强度和使用效率降低、光波长发生偏移、芯片老化加速，从而缩短了LED的使用寿命。此外，在医疗、植物培育等对温度控制有严格要求的照明应用领域也对现有的散热技术提出了更高的要求，而随着LED芯片集成度以及功率的增大，LED照明设备的散热问题愈发严重。Although LEDs have higher luminous efficiency than incandescent lamps, the luminous efficiency is usually between 20% and 30%, and more than 70% to 80% of the energy is converted into heat, and excessive temperature will cause LED light The output intensity and use efficiency are reduced, the light wavelength is shifted, and the aging of the chip is accelerated, thereby shortening the service life of the LED. In addition, lighting applications that have strict requirements on temperature control, such as medical care and plant cultivation, also put forward higher requirements for existing heat dissipation technologies. With the increase in the integration and power of LED chips, the heat dissipation of LED lighting equipment The problem is getting worse.
普通的LED照明灯具，通常只依靠自然对流换热进行散热，散热效果很差，在灯具严重发热的同时，会对灯具的长期使用以及寿命产生负面影响，这与当今节能环保的理念背道而驰。这对这一情况，现有的一些大功率LED灯具配备了较大的散热器进行散热，但这种大功率LED灯具所配备的散热器是独立设置的，这种结构形式不仅增大了灯具的整体体积，而且增加了灯具重量。然而，在很多应用领域，尺寸和重量都会受到限制。Ordinary LED lighting fixtures usually only rely on natural convection heat exchange for heat dissipation. The heat dissipation effect is very poor. When the lamps are seriously heated, it will have a negative impact on the long-term use and life of the lamps. This runs counter to the current concept of energy conservation and environmental protection. For this situation, some existing high-power LED lamps are equipped with larger radiators for heat dissipation, but the radiators equipped with such high-power LED lamps are set independently. The overall volume, but also increased the weight of lamps. However, in many applications, size and weight are limited.
实用新型内容Utility model content
(一)要解决的技术问题(1) Technical problems to be solved
本实用新型的目的是提供一种利用灯罩表面散热的LED灯具，解决现有LED灯具散热效果差，配备有大尺寸独立散热器的LED灯具尺寸和重量过大的技术问题。The purpose of this utility model is to provide an LED lamp that uses the surface of the lampshade to dissipate heat, and solve the technical problems of poor heat dissipation of the existing LED lamps and excessive size and weight of LED lamps equipped with large independent radiators.
(二)技术方案(2) Technical solution
为了解决上述技术问题，本实用新型提供了一种利用灯罩表面散热的LED灯具，包括LED光源模块和灯罩，其中所述LED光源模块与所述灯罩的上端相连，在所述灯罩的外表面上设有若干翅片换热器。In order to solve the above technical problems, the utility model provides an LED lamp that uses the surface of the lampshade to dissipate heat, including an LED light source module and a lampshade, wherein the LED light source module is connected to the upper end of the lampshade, and Several fin heat exchangers are provided.
进一步地，所述LED光源模块包括LED光源芯片和热沉，所述LED光源芯片与所述热沉热接触，所述热沉与所述灯罩的上端相连。Further, the LED light source module includes an LED light source chip and a heat sink, the LED light source chip is in thermal contact with the heat sink, and the heat sink is connected to the upper end of the lampshade.
进一步地，所述灯罩的内表面设有若干传热元件，所述传热元件与所述热沉热连接。Further, several heat transfer elements are provided on the inner surface of the lampshade, and the heat transfer elements are thermally connected with the heat sink.
具体地，所述传热元件为热管或液冷循环管。Specifically, the heat transfer element is a heat pipe or a liquid-cooled circulation pipe.
具体地，所述灯罩为圆台面结构，所述的若干传热元件呈放射状均布在所述灯罩的内表面上。Specifically, the lampshade has a circular platform structure, and the plurality of heat transfer elements are uniformly distributed radially on the inner surface of the lampshade.
具体地，所述灯罩为圆台面结构，所述的若干翅片换热器呈放射状均布在所述灯罩的外表面上。Specifically, the lampshade has a circular platform structure, and the plurality of fin heat exchangers are uniformly distributed radially on the outer surface of the lampshade.
进一步地，所述灯罩内表面贴附有导热石墨膜。Further, a thermally conductive graphite film is attached to the inner surface of the lampshade.
具体地，所述翅片换热器插嵌在所述灯罩的外表面上。Specifically, the finned heat exchanger is inserted and embedded on the outer surface of the lampshade.
具体地，所述翅片换热器与所述灯罩之间通过锡膏进行焊接。Specifically, solder paste is used to weld the fin heat exchanger and the lampshade.
具体地，所述灯罩和所述翅片换热器均采用轻质合金制成。Specifically, both the lampshade and the fin heat exchanger are made of light alloy.
(三)有益效果(3) Beneficial effects
本实用新型的上述技术方案具有如下优点：The above-mentioned technical scheme of the utility model has the following advantages:
本实用新型利用灯罩表面散热的LED灯具，将灯罩的上端与LED光源模块相连，用于将LED光源模块工作时产生的热量传递到灯罩上，再通过在灯罩的外表面上布置的翅片换热器，与周围空气进行热交换，达到对整个灯具进行冷却散热的效果，这种将灯罩与翅片换热器相结合的结构形式，既能有效控制LED工作时的温度，又能有效降低灯具整体的尺寸及重量，使得整个LED灯具具有结构简单紧凑、组装方便、重量轻、可靠性高、成本低、散热效果好的优点。The utility model utilizes the LED lamp that dissipates heat on the surface of the lampshade, connects the upper end of the lampshade with the LED light source module, and is used to transfer the heat generated by the LED light source module to the lampshade, and then through the fins arranged on the outer surface of the lampshade. The heat exchanger exchanges heat with the surrounding air to achieve the effect of cooling the entire lamp. This structural form combining the lampshade and the fin heat exchanger can not only effectively control the temperature of the LED when it is working, but also effectively reduce the temperature of the lamp. The overall size and weight of the lamp make the whole LED lamp have the advantages of simple and compact structure, convenient assembly, light weight, high reliability, low cost and good heat dissipation effect.
附图说明Description of drawings
图1是本实用新型利用灯罩表面散热的LED灯具的结构示意图；Fig. 1 is a schematic structural view of the LED lamp of the present invention utilizing the surface of the lampshade to dissipate heat;
图2是本实用新型利用灯罩表面散热的LED灯具的半剖面图。Fig. 2 is a half-sectional view of the LED lamp of the present invention utilizing the surface of the lampshade to dissipate heat.
图中：1：LED光源模块；2：灯罩；3：翅片换热器；4：传热元件。In the figure: 1: LED light source module; 2: lampshade; 3: fin heat exchanger; 4: heat transfer element.
具体实施方式detailed description
为使本实用新型实施例的目的、技术方案和优点更加清楚，下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本实用新型保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
如图1-2所示，本实用新型实施例提供一种利用灯罩表面散热的LED灯具，包括LED光源模块1、灯罩2和翅片换热器3，其中所述LED光源模块1与所述灯罩2的上端相连，在所述灯罩2的外表面上设置若干所述翅片换热器3。As shown in Figure 1-2, the embodiment of the utility model provides an LED lamp that uses the surface of the lampshade to dissipate heat, including an LED light source module 1, a lampshade 2 and a fin heat exchanger 3, wherein the LED light source module 1 and the The upper ends of the lampshade 2 are connected, and several fin heat exchangers 3 are arranged on the outer surface of the lampshade 2 .
在LED灯具中，所述LED光源模块1发光产生的热量较大，本实用新型利用灯具中与所述LED光源模块1紧密相连的灯罩，将所述LED光源模块1工作时产生的热量传递到所述灯罩2上，再通过设置在所述灯罩2的外表面上的所述翅片换热器3，与周围空气进行热交换，达到对整个灯具进行冷却散热的目的，同时，本实用新型通过所述灯罩2与所述翅片换热器3相结合的结构进行散热，还可以显著降低LED灯具的尺寸及重量。In LED lamps, the heat generated by the LED light source module 1 is relatively large. The utility model uses the lampshade closely connected with the LED light source module 1 in the lamp to transfer the heat generated by the LED light source module 1 to the On the lampshade 2, through the finned heat exchanger 3 arranged on the outer surface of the lampshade 2, heat exchange is performed with the surrounding air, so as to achieve the purpose of cooling and radiating the entire lamp. At the same time, the utility model The combined structure of the lampshade 2 and the finned heat exchanger 3 can dissipate heat, which can also significantly reduce the size and weight of the LED lamp.
进一步而言，所述LED光源模块1包括LED光源芯片和热沉，所述LED光源芯片与所述热沉热接触，所述热沉与所述灯罩2的上端相连。可以根据不同的照明需求或设计要求，选用不同类型及功率的LED光源芯片。Further, the LED light source module 1 includes an LED light source chip and a heat sink, the LED light source chip is in thermal contact with the heat sink, and the heat sink is connected to the upper end of the lampshade 2 . According to different lighting needs or design requirements, LED light source chips of different types and powers can be selected.
进一步而言，所述灯罩2的内表面设有若干传热元件4，所述传热元件4与所述热沉热连接，所述传热元件4可采用焊接的方法固定在所述灯罩2的内表面。所述传热元件4采用热管或液冷循环管，其中所述液冷循环管可以根据散热需求选用水冷或液态金属冷却形式。通过在所述灯罩2的内表面设置所述传热元件4，能够将所述所述LED光源模块1产生的热量均匀传递至所述灯罩2的表面，从而便于通过设置在所述灯罩2的外表面上的所述翅片换热器3进行散热。Further, the inner surface of the lampshade 2 is provided with several heat transfer elements 4, the heat transfer elements 4 are thermally connected with the heat sink, and the heat transfer elements 4 can be fixed on the lampshade 2 by welding. of the inner surface. The heat transfer element 4 adopts a heat pipe or a liquid-cooled circulation pipe, wherein the liquid-cooled circulation pipe can be cooled by water or liquid metal according to heat dissipation requirements. By arranging the heat transfer element 4 on the inner surface of the lampshade 2, the heat generated by the LED light source module 1 can be evenly transferred to the surface of the lampshade 2, so that The finned heat exchanger 3 on the outer surface dissipates heat.
具体而言，所述灯罩2可以根据不同的外形设计需求采用不同的形状，但需要有圆滑的内外表面用以布置所述翅片换热器3。在本实施例中，所述灯罩2采用圆台面结构，其中所述圆台面结构的灯罩上端小，下端大，在所述灯罩2的表面上设置螺孔，将所述翅片换热器3通过螺钉安装在所述灯罩2上。Specifically, the lampshade 2 can adopt different shapes according to different shape design requirements, but it needs to have smooth inner and outer surfaces for arranging the finned heat exchanger 3 . In this embodiment, the lampshade 2 adopts a circular platform structure, wherein the lampshade of the circular platform structure has a small upper end and a larger lower end, screw holes are provided on the surface of the lampshade 2, and the finned heat exchanger 3 Installed on the lampshade 2 by screws.
具体而言，所述的若干传热元件4呈放射状均布在所述灯罩2的内表面上。在所述灯罩2的外表面上设有两种大小不同的翅片换热器，其中大翅片换热器呈放射状均布在所述灯罩2的外表面上，而小翅片换热器则分布在大翅片换热器之间，从而最大限度的增大散热面积，增强散热效果。在所述翅片换热器的底部还设有热界面涂层，以保持良好的热接触。针对不同形状大小的灯罩，可以选用合适数量和大小的翅片换热器，使散热效果达到最佳。Specifically, the plurality of heat transfer elements 4 are uniformly distributed radially on the inner surface of the lampshade 2 . Two types of fin heat exchangers of different sizes are arranged on the outer surface of the lampshade 2, wherein the large fin heat exchangers are radially evenly distributed on the outer surface of the lampshade 2, while the small fin heat exchangers It is distributed among the large-fin heat exchangers, thereby maximizing the heat dissipation area and enhancing the heat dissipation effect. There is also a thermal interface coating on the bottom of the finned heat exchanger to maintain good thermal contact. For lampshades of different shapes and sizes, finned heat exchangers of appropriate quantity and size can be selected to achieve the best heat dissipation effect.
针对普通功率的LED灯具，通常上述实施例中的散热结构即可满足散热需求，然而对于具有高功率密度的LED灯具而言，仅依靠所述翅片换热器3、所述传热元件4以及所述灯罩2自身的散热效果，依然会导致LED灯具温度过高。针对这种情况，在本实用新型的进一步实施例中，在所述灯罩2的内表面贴附有导热石墨膜，从而将所述LED光源模块1产生的热量均匀传导至所述灯罩2上，达到更佳的散热效果。For LED lamps with ordinary power, the heat dissipation structure in the above embodiments can usually meet the heat dissipation requirements. However, for LED lamps with high power density, only the finned heat exchanger 3 and the heat transfer element 4 And the heat dissipation effect of the lampshade 2 itself will still cause the temperature of the LED lamp to be too high. In view of this situation, in a further embodiment of the present invention, a heat-conducting graphite film is attached to the inner surface of the lampshade 2, so as to conduct the heat generated by the LED light source module 1 to the lampshade 2 evenly, To achieve better cooling effect.
为了进一步减轻LED灯具的重量，在本实用新型的进一步实施例中，所述翅片换热器3可以直接通过插嵌的方式设置在所述灯罩2的外表面。为了减小所述翅片换热器3和所述灯罩2之间的热阻，所述翅片换热器3与所述灯罩2之间通过锡膏进行焊接。In order to further reduce the weight of the LED lamp, in a further embodiment of the present invention, the finned heat exchanger 3 can be directly arranged on the outer surface of the lampshade 2 by inserting. In order to reduce the thermal resistance between the finned heat exchanger 3 and the lampshade 2, the finned heat exchanger 3 and the lampshade 2 are welded by solder paste.
此外，所述灯罩2采用轻质合金制成，一般选用导热性能良好的铝合金或镁合金，以确保所述LED光源芯片产生的热量能高效的传递到所述灯罩2上，同时还能有效减轻所述LED灯具的重量。所述翅片换热器3也采用轻质合金制成，一般选用导热性能良好的铝合金或镁合金，用以进一步减轻LED灯具的重量。In addition, the lampshade 2 is made of light alloy, usually aluminum alloy or magnesium alloy with good thermal conductivity, so as to ensure that the heat generated by the LED light source chip can be efficiently transferred to the lampshade 2, and at the same time, it can effectively Reduce the weight of the LED lamp. The finned heat exchanger 3 is also made of light alloy, generally aluminum alloy or magnesium alloy with good thermal conductivity, to further reduce the weight of the LED lamp.
综上所述，在本实用新型提供的利用灯罩表面散热的LED灯具，所述LED光源芯片工作时产生的热量通过与其热接触的热沉以及所述传热元件4传导到所述灯罩2上。通过在所述灯罩2的内表面上布置的所述传热元件4，将热量均匀分布到整个灯罩，再利用在所述灯罩2的外表面上布置的所述翅片换热器3，有效增大散热面积，并与周围空气进行热交换，实现对LED灯具的散热目的。此外，所述灯罩2的外表面本身通过自然对流换热，也具有一定的散热能力。在上述实施例的基础上，可同时结合使用其他种类的散热装置或器件，增强LED灯具整体的散热效果。To sum up, in the LED lamp provided by the utility model that uses the surface of the lampshade to dissipate heat, the heat generated by the LED light source chip is conducted to the lampshade 2 through the heat sink in thermal contact with it and the heat transfer element 4 . Through the heat transfer element 4 arranged on the inner surface of the lampshade 2, the heat is evenly distributed to the entire lampshade, and then the fin heat exchanger 3 arranged on the outer surface of the lampshade 2 is used to effectively Increase the heat dissipation area and conduct heat exchange with the surrounding air to achieve the purpose of heat dissipation for LED lamps. In addition, the outer surface of the lampshade 2 itself exchanges heat through natural convection, and also has a certain heat dissipation capability. On the basis of the above embodiments, other types of heat dissipation devices or devices can be used in combination to enhance the overall heat dissipation effect of the LED lamp.
在本实用新型的描述中，需要说明的是，除非另有说明，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。此外，术语“大翅片换热器”和“小翅片换热器”表示尺寸大小的不同，仅用于描述目的，因此不能理解为对本实用新型的限制。In the description of the present utility model, it should be noted that unless otherwise specified, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner" and "outer" are Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot It should be understood as a limitation of the present utility model. In addition, the terms "large-fin heat exchanger" and "small-fin heat exchanger" indicate the difference in size and are only used for descriptive purposes, so they should not be construed as limiting the present invention.
在本实用新型的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本实用新型中的具体含义。In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It can be detachably connected or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
最后应说明的是：以上实施例仅用以说明本实用新型的技术方案，而非对其限制；尽管参照前述实施例对本实用新型进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本实用新型各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841003A (en) * | 2016-05-24 | 2016-08-10 | 中国科学院理化技术研究所 | LED lamp radiating by utilizing surface of lampshade |
| CN107949246A (en) * | 2017-11-27 | 2018-04-20 | 南京师范大学 | Data center module rotates micro channel heat exchanger with noise-reduction type ultrasonic wave |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841003A (en) * | 2016-05-24 | 2016-08-10 | 中国科学院理化技术研究所 | LED lamp radiating by utilizing surface of lampshade |
| CN107949246A (en) * | 2017-11-27 | 2018-04-20 | 南京师范大学 | Data center module rotates micro channel heat exchanger with noise-reduction type ultrasonic wave |
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