The LED solar street light
Technical field
The present invention relates to lighting technical field, relate in particular to a kind of LED solar street light.
Background technology
Solar-photovoltaic technology is widely used in field of street lamp lighting at present, is also carrying out in a large number about the research of photovoltaic street lamp.Existing solar street light, its battery and controller sealing mostly are positioned over lamp stand inside, are unfavorable for that heat radiation and maintenance are inconvenient.In addition, the radiating effect of led circuit plate is poor, can generate heat after long-time the use, influences luminous efficiency and service life.
Summary of the invention
For overcoming the problems referred to above, the present invention proposes a kind of LED solar street light, is convenient to safeguard, and has better heat radiating effect and effects of energy conservation and environmental protection.
For achieving the above object; Technical scheme proposed by the invention is: the LED solar street light, comprise lamppost, light fixture, solar panel, battery and control module, and said lamppost top is provided with a platform; Platform is provided with adjustable column for four jiaos, supports said solar panel; Establish an electric box on the platform, said battery and control module are located in the electric box; Said light fixture is located at the lamppost middle and upper part, is connected by a cantilever, and this light fixture comprises carbon alloy lamp housing, LED lamp plate and constant-current supply; Solar panel, battery, control module and light fixture are connected through lead.
Further, the said carbon alloy lamp housing back side is provided with radiating fin, the positive LED lamp plate of installing, and the end is provided with the heat insulation box that constant-current supply is installed.Preferably, this carbon alloy lamp housing can adopt carbon aluminium alloy, better heat-radiation effect.
Further, said LED lamp plate comprises pottery substrate and LED lamp array; LED lamp array distribution is on the pottery substrate, and the gap of said pottery substrate between the LED lamp is provided with the heat radiation minute aperture.
Further, said LED lamp comprises high-power LED chip, bispheric lens and aluminium reflector, and aluminium reflector bottom is provided with an aluminium base, and high-power LED chip is flush-mounted on the aluminium base, and with said bispheric lens encapsulation.
Further, said lamppost, adjustable column and cantilever are the hollow steel pipe structure, and said platform is made up of hollow square steel; Said lead is arranged in hollow steel pipe or the hollow square steel.
Further, said light fixture also is electrically connected with the city through controller, and bimodulus is supplied power, to solve continuous overcast and rainy power supply safety more than seven days.
Beneficial effect of the present invention: LED solar street light of the present invention has following beneficial effect:
1, adopts solar energy and civil power bimodulus automatic switchover technology, to guarantee to use the continuity of power supply;
2, the lamp housing heat conduction of carbon alloy moulding is good, adds the radiating fin at its back side, and pottery substrate and heat radiation minute aperture heat loss through conduction efficiently solve the heat radiation heat-insulating problem that has the LED street lamp now;
3, adopt bispheric lens and the high minute surface total reflection of aluminium reflector secondary light-distribution technology, guarantee Luminaire efficiency more than or equal to 90%, and the uniformity is brought up to 0.7;
4, adopt constant-current driving, have more stable, power-efficient efficiently, increase the service life;
5, battery and control module are arranged at the lamppost top, have not only maintained easily but also safety, be difficult for stolen, attractive in appearance again.
Description of drawings
Fig. 1 is a LED solar street light sketch map of the present invention;
Fig. 2 is a carbon alloy lamp housing side view;
Fig. 3 is a carbon alloy lamp housing front schematic view;
Fig. 4 is a carbon alloy lamp housing schematic rear view;
Fig. 5 is a LED lamp panel structure sketch map;
Fig. 6 is a LED modulated structure sketch map.
Reference numeral: 1, lamppost; 2, light fixture; 21, carbon alloy lamp housing; 211, fin; 212, heat insulation box; 22, constant-current supply; 23, LED lamp plate; 231, pottery substrate; 232, heat radiation minute aperture; 233, LED lamp array; 2331, aluminium reflector; 2332, bispheric lens; 2333, high-power LED chip; 2334, aluminium base; 3, solar panel; 4, platform; 5, adjustable column; 6, electric box; 7, cantilever.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment, the present invention is further specified.
As shown in Figure 1, LED solar street light of the present invention comprises lamppost 1, light fixture 2, solar panel 3, battery and control module; Lamppost 1 top is provided with a platform 4, and platform is provided with adjustable column 5 for 4 four jiaos, supports said solar panel 3; Establish an electric box 6 on the platform 4, said battery and control module are located in the electric box 6; Said light fixture 2 is located at lamppost 1 middle and upper part, is connected by a cantilever 7, and this light fixture 2 comprises carbon alloy lamp housing 21, LED lamp plate 23 and constant-current supply 22; Solar panel 3, battery, control module and light fixture 2 are connected through lead.Battery and control module are located at lamppost 1 top, be difficult for stolen, and the lamppost that need not fall when safeguarding, convenient for maintaining, elegant in appearance again.Solar panel is connected to battery through control module, and battery is connected on the light fixture 2 through control module again, and by solar powered, environmental protection is energy-conservation again.In addition, light fixture 2 also is electrically connected with the city through control module, adopts the bimodulus power supply, in case continuous overcast and rainy more than 7 days, solar cell for supplying power is not enough; Control module can be according to the solar cell for supplying power situation, and the solar powered or mains-supplied that automaticallyes switch guarantees to use the continuity of power supply, to guarantee walking along the street at night safety.Wherein, platform 4 is made up of some hollow square steels, and lamppost 1 and cantilever 7 also are the hollow steel pipe structure, and lead is arranged in the tubing, and is not only safe but also attractive in appearance, and adjustable column 5 carries out the adjusting at the elevation angle according to residing dimension in ground and the variation of spring, summer, autumn and winter are installed.
Shown in Fig. 2-5, be the structure of light fixture 2, comprise carbon alloy lamp housing 21, LED lamp plate 23 and constant-current supply 22.Wherein, carbon alloy lamp housing 21 can adopt the carbon aluminium alloy, has better heat dispersion; And carbon alloy lamp housing 21 back sides are provided with multi-disc radiating fin 211, shown in Fig. 2 and 4, can effectively strengthen radiating effect, make the carbon alloy lamp housing have better heat conductivility; A heat insulation box 212 is established in its end, and constant-current supply 22 is installed, and can effectively solve heat insulation, heat dissipation problem, and is as shown in Figure 3; This light fixture 2 adopts constant-current driving, has more stable, power-efficient efficiently, can increase the service life.LED lamp plate 23 is installed on carbon alloy lamp housing 21 fronts, shown in Fig. 3 and 5, comprises pottery substrate 231 and LED lamp array 233; LED lamp array 233 is distributed on the pottery substrate 231; On pottery substrate 231, the gap between the LED lamp is provided with heat radiation minute aperture 232.Pottery substrate 231 itself has the heat conductivility better than other alloy substrates, and heat radiation minute aperture 232 is set on it, has more strengthened its radiating effect.The lamp housing heat conduction of carbon alloy moulding is good, adds the radiating fin 211 at its back side, and pottery substrate 231 and heat radiation minute aperture 232 heat loss through conduction guarantee that operating temperature is about 42 ℃ in the lamp body.
The LED lamp is that high-power LED chip 2333, bispheric lens 2332 and the aluminium reflector 2331 of every watt of 142lm constitutes by light efficiency then; Aluminium reflector 2331 bottoms are provided with aluminium base 2334, and high-power LED chip 2333 is flush-mounted on the aluminium base 2334, and with said bispheric lens 2332 encapsulation; As shown in Figure 6; Adopt bispheric lens and the high minute surface total reflection of aluminium reflector secondary light-distribution technology, guarantee Luminaire efficiency more than or equal to 90%, and the uniformity is brought up to 0.7.
LED solar street light of the present invention efficiently solves the heat radiation heat-insulating problem that has solar street light now, adopts constant-current source to improve power-efficient, to increase the service life; Adopt the secondary light-distribution technology to improve the Luminaire efficiency and the uniformity; And battery and control module be arranged at the lamppost top, and adopt the bimodulus power supply, maintain easily, not only safety but also attractive in appearance.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; But the those skilled in the art should be understood that; In the spirit and scope of the present invention that do not break away from appended claims and limited; In form with details on various variations that the present invention is made, be protection scope of the present invention.