Utility model content
Main purpose of the present utility model is to provide a kind of solar LED street lamp, be intended to utilize electric energy that solar panel provides to maintain the low power illumination of street lamp, and pedestrian during near street lamp, the illumination brightness of automatic lifting street lamp, pedestrian, walk when far away, automatically return to the low power illumination of street lamp, to reach energy-conservation object.
The utility model proposes a kind of solar LED street lamp, comprise lamp stand, be arranged on the lamp body of described lamp stand upper end and be arranged on the solar panel on described lamp body top end face, in described lamp body, be provided with LED light source and LED driver, described LED light source is comprised of the first LED light source and the second LED light source, in described LED driver, be provided with the first LED drive circuit being electrically connected with described the first LED light source and the second LED drive circuit being electrically connected with described the second LED light source, the power input of described the first LED drive circuit and described solar panel are electrically connected, the power input of described the second LED drive circuit connects civil power, described solar LED street lamp also comprises that described inductive switch circuit is connected to the power input of described civil power and described the second LED drive circuit by the infrared sensing switch of infrared sensor and inductive switch the electric circuit constitute.
Preferably, described infrared sensor is arranged on the front end face of described lamp stand or the lower surface of described lamp body.
Preferably, described infrared sensor is thermoelectric type infrared sensor, is covered with Nie Feier lens on described infrared sensor.
Preferably, be provided with a light source mounting groove on the lower surface of described lamp body, described the first LED light source and described the second LED light source are installed in described light source mounting groove.
Preferably, the power of described the first LED light source is less than the power of described the second LED light source.
The LED light source of solar LED street lamp of the present utility model is comprised of the first LED light source and the second LED light source, the power of LED light source equals the power sum of the first LED light source and the second LED light source, thereby the power of the power ratio common LED street lamp of the first LED light source is low, the first LED light source is luminous separately, and illumination brightness is lower; The first LED light source and the second LED light source are simultaneously luminous, and illumination brightness improves, and can reach the illumination brightness of normal street lamp.
In lamp body, be provided with two-way lighting loop, solar panel, the first LED drive circuit and the first LED light source are in turn connected to form a road lighting loop, civil power, infrared sensing switch, the second LED drive circuit and the second LED light source are in turn connected to form two road lighting loops, in one road lighting loop, using solar panel to convert solar energy to electric energy is the first LED light source power supply, because the power of the first LED light source is lower, the electric energy that solar panel holds can be continuously the first LED light source power supply, the first LED light source is continued luminous, for road provides brightness lower low power illumination.
In two road lighting loops, using civil power is the second LED light source power supply, in two road lighting loops, be provided with infrared sensing switch, can by infrared sensor respond to walking close to of human body and away from, when people walks close to, the lighting loop conducting of infrared sensing switch Shi Er road, civil power is the second LED light source power supply, the first LED light source is luminous together with the second LED light source, brightness of illumination improves automatically, for pedestrian provides normal street lighting; People, walk when far away, infrared sensing switch Shi Er road lighting loop disconnects, and the second LED light source is closed, and the first LED light source is luminous separately, and street lamp returns to low power illumination state automatically, thereby reaches energy-conservation object.
The specific embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Referring to figs. 1 through Fig. 4, one embodiment of solar LED street lamp of the present utility model is proposed, this solar LED street lamp comprises lamp stand 20, is arranged on the lamp body 10 of lamp stand 20 upper ends and is arranged on the solar panel 30 on lamp body 10 top end faces, is provided with LED light source 100 and LED driver in lamp body 10.LED light source 100 is comprised of the first LED light source 101 and the second LED light source 102, the power of LED light source 100 equals the power sum of the first LED light source 101 and the second LED light source 102, thereby the power of the power ratio common LED street lamp of the first LED light source 101 is low, the first LED light source 101 is luminous separately, and illumination brightness is lower; The first LED light source 101 and the second LED light source 102 are simultaneously luminous, and illumination brightness improves, and can reach the illumination brightness of normal street lamp.
In LED driver, be provided with the first LED drive circuit 401 and the second LED drive circuit 402.The power input of the output of solar panel 30 and the first LED drive circuit 401 is electrically connected, and the power output end of the first LED drive circuit 401 and the first LED light source 101 are electrically connected, for driving the first LED light source 101 luminous.Solar panel 30 is sticked on the top end face of lamp body 10, and during solar light irradiation, solar panel 30 is converted to electric energy by the solar energy of reception by day, and by electrical power storage, to night, the electric energy that solar panel 30 stores is the first LED light source 101 power supplies, green, energy-saving and environmental protection.
The power input of the second LED drive circuit 402 connects civil power, and the power output end of the second LED drive circuit 402 is connected with the second LED light source 102, for driving the second LED light source 102 luminous.Solar LED street lamp also comprises the infrared sensing switch 50 being comprised of infrared sensor 501 and inductive switch circuit 502, inductive switch circuit 502 is connected to the power input of civil power and the second LED drive circuit 402, for controlling the connecting and disconnecting of mains supply.
By solar panel 30, the first LED drive circuit 401 and the first LED light source 101, be in turn connected to form a road lighting loop, by civil power, infrared sensing switch 50, the second LED drive circuit 402 and the second LED light source 102, be in turn connected to form two road lighting loops.
In one road lighting loop, using solar panel 30 to convert solar energy to electric energy is the first LED light source 101 power supplies, because the power of the first LED light source 101 is lower, the electric energy that solar panel 30 holds can be continuously the first LED light source 101 power supplies, the first LED light source 101 is continued luminous, for the low power illumination that provides brightness lower is provided road.Although brightness is lower, can maintain the base lighting of road.
In two road lighting loops, using civil power is the second LED light source 102 power supplies, in two road lighting loops, be provided with infrared sensing switch 50, can by infrared sensor 501 induction human bodies walking close to and away from, when people walks close to, infrared sensing switch 50Shi bis-road lighting loop conductings, civil power is the second LED light source 102 power supplies, the second LED light source 102 lights, the first LED light source 101 is luminous together with the second LED light source 102, and brightness of illumination improves automatically, for passer-by provides normal high brightness street lighting; People, walk when far away, infrared sensing switch 50Shi bis-road lighting loops disconnect, and the second LED light source 102 is closed, and the first LED light source 101 is luminous separately, and street lamp returns to low power illumination state automatically, thereby reaches energy-conservation object.
The utility model arranges the lighting loop of two groups of different power supplies, utilizes solar powered first LED light source 101 of lighting, and LED light source 100 parts are lighted, and maintains the low power illumination of street lamp, green, environmental protection, energy-conservation; And by the control of infrared sensing switch 50, to have pedestrian to walk out-of-date, open 220V civil power and light the second LED light source 102, LED light source 100 integral body of street lamp are lighted, for passer-by provides highlight illumination, it is out-of-date on road, without pedestrian, to walk, the automatic disconnection of 220V civil power, the second LED light source 102 extinguishes, and saves electric energy.
This infrared sensor 501 is arranged on the front end face or lamp body 10 lower surface of lamp stand 20, for respond to human body walk close to away from.This infrared sensor 501 is thermoelectric type infrared sensor 501, is covered with Nie Feier lens on infrared sensor 501, for improving the receiving sensitivity of thermoelectric type infrared sensor 501.
The operation principle of this infrared sensing switch 50 is: when having people to enter induction zone, 7 ~ 9 m infrared rays that human body radiation goes out, after increasing frequently, Nie Feier lens received by infrared sensor 501, infrared sensor 501 human body move the infrared heat energy causing and change and it is converted to voltage, by secondary frequency-selecting amplification ratio, be input in inductive switch circuit 502 conducting that is triggered of the bidirectional triode thyristor in inductive switch circuit 502; When human body is walked out induction zone, trigger silicon controlled signal lag after the time of setting, the bidirectional triode thyristor in inductive switch circuit 502 is turned off, and civil power is disconnected.
On lamp body 10 lower surface, be provided with a light source mounting groove, the first LED light source 101 and the second LED light source 102 are installed in light source mounting groove, and the first LED light source 101 and the second LED light source 102 emit beam from same light-emitting window.
The power of the first LED light source 101 is less than the power of the second LED light source 102, and the power of the first LED light source 101 is lower, and power consumption is low, the electric energy that solar panel 30 holds be enough to maintain the first LED light source 101 continue, stable luminous.
The lamp body 10 of this LED street lamp can arrange single or two (as shown in Figure 2,4), when lamp body 10 is provided with two, two lamp bodies 10 are arranged on the forward and backward both sides of lamp stand 20 upper ends, form two lamp body LED street lamps of Y type, often be arranged in the middle of road, be used to the illumination of road the right and left.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.