CN202675212U - Heat-dissipation optimization and temperature on-line monitoring system for light-emitting diode (LED) lamp - Google Patents
Heat-dissipation optimization and temperature on-line monitoring system for light-emitting diode (LED) lamp Download PDFInfo
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- CN202675212U CN202675212U CN2012201662373U CN201220166237U CN202675212U CN 202675212 U CN202675212 U CN 202675212U CN 2012201662373 U CN2012201662373 U CN 2012201662373U CN 201220166237 U CN201220166237 U CN 201220166237U CN 202675212 U CN202675212 U CN 202675212U
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Abstract
本实用新型是一种LED照明灯散热优化与温度在线监测系统,包括有:主芯片组为经过散热优化后的采用非均匀布灯方式的LED阵列,温度在线监测的电压触发比较电路;基于自然对流散热原理,遵从最大散热量以及优化设计的理念,设计出LED投光灯芯片组的最佳安放矩阵——中心嵌套对称式排布;如果LED灯温度正常,电平触发器不能导通且蜂鸣器不报警;温度超过警戒温度时,电平触发器导通瞬间,产生的感应电流形成的电压将会大于基准电压,在电压触发比较模块之后输出5V的正向电压,产生一个上升沿,触发三极管,点亮指示灯,同时触发蜂鸣器;本实用新型可靠性高,成本低,在经久耐用的质量要求上又实现了节能环保的理念,可以广泛应用于公共休闲场所晚间照明,也可以作为公路交通方面的探照灯使用。
The utility model is an LED lighting lamp heat dissipation optimization and temperature online monitoring system, comprising: the main chip group is an LED array with non-uniform lamp arrangement after heat dissipation optimization, and a voltage trigger comparison circuit for online temperature monitoring; The principle of convection heat dissipation, following the concept of maximum heat dissipation and optimized design, designs the best placement matrix for the chipset of LED floodlights - nested and symmetrical arrangement in the center; if the temperature of the LED lights is normal, the level trigger cannot be turned on And the buzzer does not alarm; when the temperature exceeds the warning temperature, the level trigger is turned on instantly, and the voltage formed by the induced current will be greater than the reference voltage. After the voltage triggers the comparison module, it outputs a 5V forward voltage, generating a rising Along, trigger the triode, light up the indicator light, and trigger the buzzer at the same time; the utility model has high reliability, low cost, and realizes the concept of energy saving and environmental protection in terms of durable quality requirements, and can be widely used in night lighting of public leisure places , It can also be used as a searchlight for road traffic.
Description
技术领域 technical field
伴着科技创新的日新月异,人类对绿色环保的追求日趋强烈,可持续发展成为全社会的永恒主题。与人们生活密切相关的绿色照明--发光二极管(light emitting diode,LED),因其节能、环保等诸多优点,被认为是最有可能替代白炽灯的第四代照明光源,受到广泛瞩目。但散热与光强问题成了LED照明灯发展与普及道路上的绊脚石。迄今为止,国内外对LED照明灯的散热与光强问题进行了大量研究,提出了多种优化与设计方法。 With the rapid development of scientific and technological innovation, human beings' pursuit of green environmental protection is becoming more and more intense, and sustainable development has become an eternal theme of the whole society. The green lighting that is closely related to people's life - light emitting diode (LED), because of its energy saving, environmental protection and many other advantages, is considered to be the fourth-generation lighting source that is most likely to replace incandescent lamps, and has attracted widespread attention. However, the problems of heat dissipation and light intensity have become stumbling blocks on the road to the development and popularization of LED lighting. So far, a lot of research has been done on the heat dissipation and light intensity of LED lighting at home and abroad, and a variety of optimization and design methods have been proposed. the
本实用新型一LED照明灯散热优化与温度在线监测系统:结合热学理论及实际模型测试结果,确定合理尺寸,并采用优化后的非均匀布灯方式,即从灯具中心处向两边逐渐减小相邻两颗LED之间的间距,从而在减少中心温差的同时,降低整个灯板的平均温度,提高散热效率;基于数字逻辑电路原理,如果LED灯温度正常,电平触发器不能导通且蜂鸣器不报警;温度超过警戒温度时,电平触发器导通瞬间,产生的感应电流形成的电压将会大于基准电压,在电压触发比较模块之后输出5V的正向电压,产生一个上升沿,触发三极管,点亮指示灯,同时触发蜂鸣器。可靠性高,成本低,在经久耐用的质量要求上又实现了节能环保的理念,可以广泛应用于公共交通的晚间路灯照明,也可以作为特殊场合的高亮探照灯使用。 The utility model is a heat dissipation optimization and temperature online monitoring system for LED lighting lamps: combined with thermal theory and actual model test results, a reasonable size is determined, and an optimized non-uniform lamp arrangement method is adopted, that is, the phase is gradually reduced from the center of the lamp to both sides. The distance between two adjacent LEDs can reduce the average temperature of the entire lamp board and improve heat dissipation efficiency while reducing the center temperature difference; based on the principle of digital logic circuit, if the temperature of the LED lamp is normal, the level trigger cannot be turned on and the buzzer The buzzer does not alarm; when the temperature exceeds the warning temperature, the level trigger is turned on instantly, and the voltage formed by the induced current will be greater than the reference voltage. After the voltage triggers the comparison module, it outputs a positive voltage of 5V to generate a rising edge. Trigger the triode, light up the indicator light, and trigger the buzzer at the same time. It has high reliability and low cost, and realizes the concept of energy saving and environmental protection in terms of durable quality requirements. It can be widely used in night street lighting for public transportation, and can also be used as a high-brightness searchlight for special occasions. the
背景技术 Background technique
目前LED在工作过程中产生热量,这些热量如果不能迅速耗散而积聚起来,导致LED芯片的温度过高,将引起其电、光、色等性能发生变化,严重影响LED的工作性能。且单颗LED芯片的功率不大,光效不高,光通量无法满足通用照明所要求的接近1000流明的标准。如何通过优化设计,实现最大散热量与高亮度成为LED照明技术的一个重要研究课题。 At present, LEDs generate heat during operation. If the heat cannot be quickly dissipated and accumulated, the temperature of the LED chip will be too high, which will cause changes in its electrical, optical, and color properties, and seriously affect the working performance of the LED. Moreover, the power of a single LED chip is not large, the luminous efficiency is not high, and the luminous flux cannot meet the standard of nearly 1000 lumens required by general lighting. How to optimize the design to achieve maximum heat dissipation and high brightness has become an important research topic in LED lighting technology. the
发明内容 Contents of the invention
本实用新型所要解决的技术问题是,通过对LED照明灯散热优化与温度在线监测系统,实现最大散热量与高亮度,且工作可靠性高,制作成本低,节能环保。 The technical problem to be solved by the utility model is to realize the maximum heat dissipation and high brightness by optimizing the heat dissipation of the LED lighting lamp and the online temperature monitoring system, with high working reliability, low production cost, energy saving and environmental protection. the
本实用新型采用的技术方案是:主芯片组为经过散热优化后的采用非均匀布灯方式的LED阵列,温度在线监测的电压触发比较电路。 The technical scheme adopted by the utility model is: the main chipset is an LED array in a non-uniform lamp arrangement mode after heat dissipation optimization, and the voltage for online temperature monitoring triggers a comparison circuit. the
主芯片组为经过散热优化后的采用非均匀布灯方式的LED阵列,从灯具中心处向两边逐渐减小相邻两颗LED之间的间距,从而在减少中心温差的同时,降低整个灯板的平均温度,提高散热效率。 The main chipset is an LED array with non-uniform lighting arrangement after heat dissipation optimization. The distance between two adjacent LEDs is gradually reduced from the center of the lamp to both sides, so as to reduce the temperature difference in the center and reduce the temperature of the entire lamp board. The average temperature, improve cooling efficiency. the
温度在线监测的电压触发比较电路,如果LED灯温度正常,电平触发器不能导通且蜂鸣器不报警;温度超过警戒温度时,电平触发器导通瞬间,产生的感应电流形成的电压将会大于基准电压,在电压触发比较模块之后输出5V的正向电压,产生一个上升沿,触发三极管,点亮指示灯,同时触发蜂鸣器。 The voltage trigger comparison circuit for temperature online monitoring, if the temperature of the LED lamp is normal, the level trigger cannot be turned on and the buzzer will not alarm; when the temperature exceeds the warning temperature, the level trigger is turned on instantly, and the voltage formed by the induced current is generated It will be greater than the reference voltage. After the voltage triggers the comparison module, it will output a forward voltage of 5V, generate a rising edge, trigger the triode, light up the indicator light, and trigger the buzzer at the same time. the
附图说明 Description of drawings
图1是本实用新型的整体结构框图; Fig. 1 is the overall structural block diagram of the present utility model;
图2是采用非均匀布灯方式的LED阵列示意图; Figure 2 is a schematic diagram of an LED array using a non-uniform lighting arrangement;
图3是本实用新型的电压触发比较电路图。 Fig. 3 is a voltage trigger comparison circuit diagram of the utility model. the
具体实施方式 Detailed ways
下面结合实例和附图对本实用新型-LED照明灯散热优化与温度在线监测系统作详细说明。 The utility model-LED lighting lamp heat dissipation optimization and temperature on-line monitoring system will be described in detail below in combination with examples and accompanying drawings. the
如图1所示,将220V交流电接入电源导线,供给主芯片组为经过散热优化后的采用非均匀布灯方式的LED阵列,使LED照明灯提高散热效率。温度在线监测的电压触发比较电路,如果LED灯温度正常,电平触发器不能导通且蜂鸣器不报警;温度超过警戒温度时,电平触发器导通瞬间,产生的感应电流形成的电压将会大于基准电压,在电压触发比较模块 之后输出5V的正向电压,产生一个上升沿,触发三极管,点亮指示灯,同时触发蜂鸣器。 As shown in Figure 1, the 220V AC power is connected to the power wire, and the main chipset is supplied to the LED array with non-uniform lighting arrangement after heat dissipation optimization, so that the LED lighting can improve the heat dissipation efficiency. The voltage trigger comparison circuit for temperature online monitoring, if the temperature of the LED lamp is normal, the level trigger cannot be turned on and the buzzer will not alarm; when the temperature exceeds the warning temperature, the level trigger is turned on at the moment, the voltage formed by the induced current It will be greater than the reference voltage, and output a forward voltage of 5V after the voltage triggers the comparison module to generate a rising edge, trigger the triode, light up the indicator light, and trigger the buzzer at the same time. the
如图2所示,是主芯片组为经过散热优化后的采用非均匀布灯方式的LED阵列,从灯具中心处向两边逐渐减小相邻两颗LED之间的间距,从而在减少中心温差的同时,降低整个灯板的平均温度,提高散热效率。 As shown in Figure 2, the main chipset is an LED array that adopts a non-uniform lighting arrangement after heat dissipation optimization. The distance between two adjacent LEDs is gradually reduced from the center of the lamp to both sides, thereby reducing the center temperature difference. At the same time, it reduces the average temperature of the entire lamp panel and improves the heat dissipation efficiency. the
如图3所示,是LED照明灯温度在线监测的电压触发比较电路,如果LED灯温度正常,电平触发器不能导通且蜂鸣器不报警;温度超过警戒温度时,电平触发器导通瞬间,产生的感应电流形成的电压将会大于基准电压,在电压触发比较模块之后输出5V的正向电压,产生一个上升沿,触发三极管,点亮指示灯,同时触发蜂鸣器。 As shown in Figure 3, it is a voltage trigger comparison circuit for online monitoring of the temperature of the LED lighting lamp. If the temperature of the LED lamp is normal, the level trigger cannot be turned on and the buzzer will not alarm; when the temperature exceeds the warning temperature, the level trigger turns on At the moment of switching on, the voltage formed by the generated induced current will be greater than the reference voltage. After the voltage triggers the comparison module, it outputs a 5V forward voltage, generates a rising edge, triggers the triode, lights up the indicator light, and triggers the buzzer at the same time. the
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