CN202675212U - Heat-dissipation optimization and temperature on-line monitoring system for light-emitting diode (LED) lamp - Google Patents

Abstract

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

LED lighting heat dissipation optimization and temperature online monitoring system

technical field

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

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

Background technique

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

Contents of the invention

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

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

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

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

Description of drawings

Fig. 1 is the overall structural block diagram of the present utility model;

Figure 2 is a schematic diagram of an LED array using a non-uniform lighting arrangement;

Fig. 3 is a voltage trigger comparison circuit diagram of the utility model. the

Detailed ways

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

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

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

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

Claims (3)

1.LED illuminating lamp optimizing thermal solution and temperature online monitoring system is characterized in that also being provided with: host chipset is the led array through the non-homogeneous pattern of lighting of employing behind the optimizing thermal solution, the voltage triggered comparison circuit of on-line temperature monitoring.

2. LED illuminating lamp optimizing thermal solution according to claim 1 and temperature online monitoring system, be further characterized in that, described host chipset is the led array through the non-homogeneous pattern of lighting of employing behind the optimizing thermal solution, reduces gradually the spacing between adjacent two LEDs from the light fixture center to both sides.

3. LED illuminating lamp optimizing thermal solution according to claim 1 and temperature online monitoring system are further characterized in that, the voltage triggered comparison circuit of described on-line temperature monitoring, if the LED light temperature is normal, level trigger can not conducting and buzzer do not report to the police; When temperature surpassed the warning temperature, level trigger conducting moment, the voltage that the induced-current of generation forms will be greater than reference voltage, after the voltage triggered comparison module, export the forward voltage of 5V, produce a rising edge, trigger triode, light indicator lamp, trigger simultaneously buzzer.

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