CN203231229U - An all-weather solar street light - Google Patents

Abstract

The utility model discloses an all-weather solar street lamp. The all-weather solar street lamp comprises a lamp post, wherein a light-emitting diode (LED) light source and a solar battery are fixed on the lamp post, the solar battery is connected with the LED light source through a photovoltaic controller, a first relay, a storage battery, a second relay and an intelligent converter sequentially, the storage battery is connected with a voltage detection circuit which is used for detecting voltage of the storage battery, an output end of the voltage detection circuit, a pulse-width modulation (PWM) signal input end of the intelligent converter and control ends of the first relay and the second relay are connected with a programmable controller respectively, and the programmable controller is connected with the photovoltaic controller. According to the all-weather solar street lamp, under the conditions of continuous rainy days and insufficient solar energy supply, the effective lighting time of the LED street lamp is prolonged, and the street lamp is reasonable in design and low in cost and is a preferred choice for road lighting energy-saving transformation.

Description

An all-weather solar street light

technical field

The utility model relates to a solar street lamp, in particular to an all-weather solar street lamp.

Background technique

Following the proposal of "energy saving and emission reduction" and "low carbon", many domestic and foreign enterprises and research institutions have devoted themselves to the development and utilization of new energy. Solar energy is widely used in various fields due to its low cost and wide resources.

In the field of street lamps, LED street lamps (Light Emitting Diαde, light-emitting diodes), that is, semiconductor lighting lamps, are high-efficiency solid-state light sources that can emit light with weak electric energy based on semiconductor PN junctions. Under the voltage and injection current, the holes injected into the P region and the electrons injected into the N region diffuse to the active region and emit photons through radiative recombination, which directly converts electrical energy into light energy. It is a solid-state cold light source, which has the characteristics of environmental protection, no pollution, low power consumption, high luminous efficiency, and long life.

Therefore, LED street lamps powered by solar cells have become the best choice for energy-saving renovation of road lighting.

However, the current LED street lamps powered by solar cells cannot effectively control the power consumption of LED street lamps. In continuous rainy days and insufficient solar power supply, the effective lighting time of LED street lamps will be affected.

Utility model content

The purpose of the utility model is to provide an all-weather solar street lamp, which can prolong the effective lighting time of the LED street lamp in the case of continuous rainy days and insufficient solar power supply.

In order to achieve the above purpose, the technical solution of the utility model is to design an all-weather solar street light, including a light pole on which an LED light source and a solar battery are fixed; the solar battery passes through the photovoltaic controller, the first relay, the battery, the second The relay and the smart converter are connected to the LED light source; the battery is connected to a voltage detection circuit for detecting its voltage; the output terminal of the voltage detection circuit, the PWM signal input terminal of the smart converter, and the control terminals of the first relay and the second relay are respectively Connected to the programmable controller; the programmable controller is also connected to the photovoltaic controller.

Preferably, the programmable controller has a built-in PWM control module.

Preferably, the programmable controller has a built-in street lamp working period control module.

Preferably, the solar cell is fixed on the top of the light pole.

Preferably, a photoreceptor is also fixed on the light pole.

Preferably, the photoreceptor is connected with a programmable controller.

Preferably, a light control switch is also fixed on the light pole.

Preferably, the optical switch is connected with a programmable controller.

Photovoltaic controllers are used to control solar cells to charge batteries efficiently and safely.

The voltage detection circuit can provide the real-time voltage value of the storage battery to the programmable controller.

The first relay is controlled by the programmable controller to disconnect and close the entire charging circuit of the battery to effectively protect the battery; when the battery voltage is lower than the charging voltage threshold, the first relay is closed and the battery is charged; when the battery When the voltage reaches the full voltage threshold, the first relay is disconnected, and the battery stops charging.

The second relay is controlled by the programmable controller to disconnect and close the entire circuit in which the battery supplies power to the LED light source, so as to effectively protect the battery.

The intelligent converter is used to control the power supply current of the LED light source. The power supply current is controlled by the programmable controller (through PWM signal). The current can effectively control the power consumption of LED street lamps, prolong the power supply time of the battery, and prolong the effective lighting time of LED street lamps in the case of continuous rainy days and insufficient battery power supply.

The control module, the photoreceptor, and the light control switch during the working hours of the street lamp can further assist the programmable controller to control the lighting of the street lamp.

The advantages and beneficial effects of the utility model are: to provide an all-weather solar street lamp, which can prolong the effective lighting time of the LED street lamp in the case of continuous rainy days and insufficient power supply of the battery, and has reasonable design and low cost, which is an energy-saving solution for road lighting. A good choice for renovation.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a circuit principle block diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

The technical scheme of the concrete implementation of the utility model is:

An all-weather solar street lamp, comprising a light pole 1 on which an LED light source 2 and a solar cell 3 are fixed; the solar cell 3 is fixed on the top of the light pole 1; the solar cell 3 passes through a photovoltaic controller 4 and a first relay 5. The battery 6, the second relay 7, and the smart converter 8 are connected to the LED light source 2; the battery 6 is connected to a voltage detection circuit 9 for detecting its voltage; the output terminal of the voltage detection circuit 9 and the PWM signal input of the smart converter 8 terminal, the control terminals of the first relay 5 and the second relay 7 are respectively connected to the programmable controller 10; the programmable controller 10 is also connected to the photovoltaic controller 4. The programmable controller 10 has a built-in PWM control module 11 . The programmable controller 10 has a built-in street lamp working period control module 12 . A photoreceptor 13 is also fixed on the light pole 1 . The photoreceptor 13 is connected with the programmable controller 10 . A light control switch 14 is also fixed on the light pole 1 . The light control switch 14 is connected with the programmable controller 10 .

The above is only the preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. And retouching should also be regarded as the protection scope of the present utility model.

Claims (8)

1. an all-weather solar street lamp is characterized in that, comprises lamp stand, and led light source and solar cell are fixedly arranged on the lamp stand; Solar cell is connected with led light source by photovoltaic controller, first relay, battery, second relay, intelligent converter successively; Battery is connected with the voltage detecting circuit for detection of its voltage; The control end of the pwm signal input of the output of voltage detecting circuit, intelligent converter, first relay and second relay also is connected to Programmable Logic Controller respectively; Programmable Logic Controller also is connected with photovoltaic controller.

2. all-weather solar street lamp according to claim 1 is characterized in that, described Programmable Logic Controller is built-in with the PWM control module.

3. all-weather solar street lamp according to claim 1 is characterized in that, described Programmable Logic Controller is built-in with street lamp working hour control module.

4. all-weather solar street lamp according to claim 1 is characterized in that, described solar cell is fixed in the lamp stand top.

5. all-weather solar street lamp according to claim 1 is characterized in that, photoreceptor is also fixedly arranged on the described lamp stand.

6. all-weather solar street lamp according to claim 5 is characterized in that, described photoreceptor is connected with Programmable Logic Controller.

7. all-weather solar street lamp according to claim 1 is characterized in that, light-operated switch is also fixedly arranged on the described lamp stand.

8. all-weather solar street lamp according to claim 7 is characterized in that, described light-operated switch is connected with Programmable Logic Controller.

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