CN206341027U - Street lamp and its power supply device - Google Patents

Abstract

The utility model relates to a street lamp technical field discloses a street lamp and power supply unit thereof. The street lamp power supply device comprises a photovoltaic module, a wind power generation module, a controller, a storage battery, a power supply, a power switch and an inverter; the photovoltaic module and the wind power generation module are connected with the input end of the storage battery through the controller; the photovoltaic module is arranged at the middle upper part of the street lamp pole, and the wind power generation module is arranged at the top of the street lamp pole; the output end of the power supply is connected with the input end of the storage battery through a power switch, and the input end of the power supply is connected with the commercial power; the power switch is conducted when the voltage of the storage battery is lower than the output voltage of the power supply; the storage battery is connected with the input end of the inverter through the controller; the output end of the inverter is connected with the street lamp. When the electric energy generated by the photovoltaic module and/or the wind power generation module is sufficient, the street lamp power supply device supplies power to the street lamp by the photovoltaic module and/or the wind power generation module, and does not adopt commercial power to supply power to the street lamp.

Description

Street lamp and its power supply device

technical field

The utility model relates to the technical field of street lamps, in particular to a street lamp and a power supply device thereof.

Background technique

With the continuous advancement of science and technology, light energy as a renewable energy source has gradually been applied to the field of street lighting. Traditional street lighting power supply devices generally include photovoltaic modules, controllers and batteries. In order to avoid insufficient solar energy, the mains power is also added to the power supply of street lights. For example, connect the utility power to the controller through a relay or a switch. The battery of the traditional power supply device is charged by the photovoltaic module and the mains power together, and the solar energy cannot be used preferentially when the solar energy is sufficient, resulting in a waste of resources.

Utility model content

The technical problem to be solved by the utility model is to provide a street lamp and its power supply device that can preferentially use solar energy and wind energy in view of the deficiencies of the above-mentioned prior art.

In order to solve the problems of the technologies described above, the technical solution adopted by the utility model is:

A street lamp power supply device, including a photovoltaic module, a wind power generation module, a controller, a storage battery, a power supply, a power switch and an inverter;

Both the photovoltaic module and the wind power generation module are connected to the input end of the storage battery through the controller; the top of;

The output end of the power supply is connected to the input end of the battery through the power switch, and the input end of the power supply is connected to the mains;

The power switch is turned on when the voltage of the storage battery is lower than the output voltage of the power supply;

The storage battery is connected to the input end of the inverter through the controller;

The output end of the inverter is connected with street lamps.

Preferably, the power switch includes a diode;

The anode of the diode is connected to the power supply, and the cathode is connected to the input terminal of the storage battery.

Preferably, the power switch includes a comparator A1 and a PMOS transistor T1; the positive input terminal of the comparator A1 is connected to the storage battery, the negative input terminal of the comparator A1 is connected to the power supply, and the output terminal of the comparator A1 is connected to the power supply. The gate of the PMOS transistor T1 is connected;

The source of the PMOS transistor T1 is connected to the power supply, and the drain of the PMOS transistor T1 is connected to the storage battery.

Preferably, the power switch includes a comparator A2 and an NMOS transistor T2; the positive input terminal of the comparator A2 is connected to the power supply, the negative input terminal of the comparator A1 is connected to the storage battery, and the output terminal of the comparator A2 is connected to the battery. The gate of the NMOS transistor T2 is connected;

The source of the NMOS transistor T2 is connected to the power supply, and the drain of the NMOS transistor T2 is connected to the storage battery.

Preferably, the controller includes at least two input ports, at least one input/output port and at least one output port; the input port communicates with the input/output port; the input/output port communicates with the output port connected;

The photovoltaic component and the wind power generation component are connected to the input port;

the battery is connected to the input/output port;

The inverter is connected to the output port.

Preferably, the power supply is a rectified DC power supply; the input terminal of the rectified DC power supply is connected to the mains, and the output terminal of the rectified DC power supply is connected to the power switch.

Preferably, a filter circuit is also included; the input end of the filter circuit is connected to the wind power generation assembly, and the output end of the filter circuit is connected to the controller; the wind power generation assembly is connected to the wind power generation assembly through the filter circuit The controller is connected.

A street lamp, comprising a street lamp and any one of the street lamp power supply devices described above, the street lamp is connected to the street lamp power supply device.

The beneficial effect produced by adopting the above technical solution is: the power switch is turned off when the voltage of the battery is greater than or equal to the first voltage, and the power switch is turned on when the voltage of the battery is lower than the first voltage Therefore, when the electric energy generated by the photovoltaic component and/or the wind power generation component is relatively sufficient, the voltage of the storage battery will be higher than the first voltage, and the power switch will not be turned on. At this time, the street lamps will only be powered by photovoltaic modules and wind power generation modules. And only when the electric energy generated by the photovoltaic assembly and the wind power generation assembly is insufficient, the voltage of the storage battery is lower than the first voltage, and the power switch is turned on. At this time, the power supply supplies power to the street lamp through the controller. And because a power switch is provided, the power supply will not charge the accumulator either. Only when the working condition of the street lamp is reached, the power supply will supply power to the street lamp through the controller. Based on the above reasons, in the embodiment of the present invention, when the electric energy generated by the photovoltaic components and/or wind power generation components is relatively sufficient, the voltage of the storage battery is relatively high, so that when the working conditions of the street lamps are met, the photovoltaic components and/or wind power generation components are used as street lamps. Power supply instead of supplying power to street lamps and lanterns through the mains; only when the power generated by photovoltaic modules and wind power generation components is not sufficient, the power supply will supply power to street lamps and lanterns.

Description of drawings

Fig. 1 is a block diagram of the utility model;

Fig. 2 is a circuit diagram of the power switch of the present utility model.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in FIG. 1 , it is a structural block diagram of an embodiment of the street lamp power supply device of the present invention. Referring to FIG. 1 , the street lamp power supply device may include a photovoltaic module 100 , a wind power generation module 200 , a controller 300 , a storage battery 400 , a power supply 500 , a power switch 600 and an inverter 700 .

Both the photovoltaic assembly 100 and the wind power generation assembly 200 are connected to the input end of the storage battery 400 through the controller 300 . The photovoltaic assembly 100 is arranged at the middle and upper part of the street light pole, and the wind power generation assembly 200 is arranged at the top of the street light pole. The output end of the power supply 500 is connected to the input end of the storage battery 400 through the power switch 600 , and the input end of the power supply 500 is connected to the mains. The power switch 600 is turned off when the voltage of the battery 400 is greater than or equal to the output voltage of the power supply 500 , and the power switch 600 is turned on when the voltage of the battery 400 is lower than the output voltage of the power supply 500 . The storage battery 400 is connected to the input terminal of the inverter 700 through the controller 300 . The output terminal of the inverter 400 is connected with the street lamp 800 .

In the above-mentioned street lamp power supply device, the photovoltaic module 100 converts solar energy into electric energy, and charges the storage battery 400 through the controller 300 . The wind power generation component 200 converts wind energy into electrical energy, and charges the storage battery 400 through the controller 300 . When the working condition of the street lamp is reached, the controller 300 controls the battery 400 to supply power to the street lamp 800 through the inverter 700 . Wherein, the current in the storage battery 400 is direct current, which needs to be converted by the inverter 700 at a high frequency to convert the direct current into alternating current to supply power to the street lamp 800 . Wherein, the street lamp working conditions may be time conditions or light conditions, but not limited thereto.

In addition, since the power switch 600 is turned off when the voltage of the battery 400 is greater than or equal to the first voltage, and the power switch 600 is turned on when the voltage of the battery 400 is lower than the first voltage, the photovoltaic module When the electric energy generated by 100 and/or the wind power generation assembly 200 is relatively sufficient, the voltage of the storage battery 400 will be higher than the first voltage, and the power switch 600 will not be turned on. At this time, only the street lamp 800 is powered by the photovoltaic module 100 and the wind power generation module 200 . And only when the electric energy generated by the photovoltaic assembly 100 and the wind power generation assembly 200 is insufficient, the voltage of the storage battery 400 is lower than the first voltage, and the power switch 600 is turned on. At this time, the power supply 500 supplies power to the street lamp 800 through the controller 300 . And because the power switch 600 is provided, the power supply 500 will not charge the storage battery 400 either. Only when the working condition of the street lamp is reached, the power supply 500 will supply power to the street lamp 800 through the controller 300 .

It can be seen that when the power generated by the photovoltaic module 100 and/or the wind power generation module 200 is relatively sufficient, the voltage of the battery 400 is relatively high, so that the power supply 500 will not supply power to the street lamp 800 when the street lamp working condition is met. Only when the electric energy generated by the photovoltaic assembly 100 and the wind power generation assembly 200 is not sufficient, the power supply 500 supplies power to the street lamp 800 .

As an implementation manner, the power switch 600 includes a diode. The anode of the diode is connected to the power supply 500 , and the cathode is connected to the input terminal of the storage battery 400 . When the voltage of the storage battery 400 is lower than the output voltage of the power supply 500 , the diode is turned on, so that the power supply 500 supplies power to the street lamp 800 when the street lamp power supply condition is met. When the voltage of the storage battery 400 is higher than the output voltage of the power supply 500, the diode is cut off, so that when the street lamp power supply condition is reached, the power supply 500 cannot supply power to the street lamp 800, and the photovoltaic module 100 and the wind power generation module 200 are Street light fixture 800 supplies power.

As an implementation manner, the power switch 600 includes a comparator and a MOS transistor. The two input ends of the comparator are respectively connected to the output end of the power supply 500 and the storage battery 400 , and the output end of the comparator is connected to the MOS tube. The MOS tubes are respectively connected to the power supply 500 and the storage battery 400 . The comparator compares the voltage of the power supply 500 with the voltage of the battery 400 , and generates a target level (for example, a high level or a low level) when the voltage of the power supply 500 is higher than the voltage of the battery 400 . The MOS tube is turned on after receiving the target level, so that the power supply 500 is connected to the storage battery 400 , so that when the street lamp power supply condition is met, the power supply 500 supplies power to the street lamp 800 . Wherein, when the target level is high level, the MOS transistor may be an NMOS transistor. When the target level is a low level, the MOS transistor may be a PMOS transistor.

Referring to FIG. 2 , in one embodiment, the power switch includes a comparator A1 and a PMOS transistor T1 . The positive input end of the comparator A1 is connected to the storage battery 400 , and the negative input end of the comparator A1 is connected to the power supply 500 . The output end of the comparator A1 is connected to the gate of the PMOS transistor T1. The source of the PMOS transistor T1 is connected to the power supply 500 , and the drain of the PMOS transistor T1 is connected to the battery 400 . When the voltage of the power supply 500 is higher than the voltage of the battery 400 , the comparator A1 outputs a low level, and the PMOS transistor T1 is turned on, that is, the source and drain of the PMOS transistor T1 are connected, and the power supply 500 is connected to the battery 400 . When the voltage of the power supply 500 is lower than the voltage of the battery 400 , the comparator A1 outputs a high level, and the PMOS transistor T1 is turned off, that is, the source and drain of the PMOS transistor T1 are turned off, and the power supply 500 is disconnected from the battery 400 .

In another embodiment, the power switch also includes a comparator A2 and an NMOS transistor T2. The positive input end of the comparator A2 is connected to the power supply 500 , and the negative input end of the comparator A1 is connected to the storage battery 400 . The output end of the comparator A2 is connected to the gate of the NMOS transistor T2. The source of the NMOS transistor T2 is connected to the power supply 500 , and the drain of the NMOS transistor T2 is connected to the battery 400 . For the working principles of the comparator A2 and the NMOS transistor T2, reference may be made to the working principles of the comparator A1 and the PMOS transistor T1, which will not be described again.

In one embodiment, the controller 300 may include at least two input ports, at least one input/output port and at least one output port. The input port communicates with the input/output port; the input/output port communicates with the output port. The photovoltaic assembly 100 and the wind power generation assembly 200 are connected to the input port. The storage battery 400 is connected to the input/output port. The inverter 700 is connected to the output port.

Preferably, the power supply 500 may be a rectified DC power supply. The input end of the rectified DC power supply is connected to the mains, and the output end of the rectified DC power supply is connected to the power switch 600 .

Further, the street lamp power supply device may also include a filter circuit. The input end of the filter circuit is connected to the wind power generation assembly 200 , and the output end of the filter circuit is connected to the controller 300 . The wind power generation component is connected with the controller through the filter circuit.

After adopting the above technical solution, when the electric energy generated by the photovoltaic module 100 and/or the wind power generation module 200 is relatively sufficient, the voltage of the battery 400 is relatively high, so that the power supply 500 will not supply power to the street lamp 800 when the street lamp working condition is reached. Only when the electric energy generated by the photovoltaic assembly 100 and the wind power generation assembly 200 is not sufficient, the power supply 500 supplies power to the street lamp 800 .

In an embodiment, the street lamp may include a street lamp and any one of the street lamp control devices described above, and the street lamp is connected to the street lamp control device. The street lamp has all the advantages of the above-mentioned street lamp control device, which will not be repeated here.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (8)

1. a kind of road lamp power supplying device, it is characterised in that including photovoltaic module, wind-power electricity generation component, controller, battery, confession Power supply, power switch and inverter；

The photovoltaic module and the wind-power electricity generation component are connected by the controller with the input of the battery；Institute The middle and upper part that photovoltaic module is arranged on street lamp post is stated, the wind-power electricity generation component is arranged on the top of the street lamp post；

The output end of the power supply is connected by the power switch with the input of the battery, the power supply Input connection civil power；

The power switch is turned on when the voltage of the battery is less than the output voltage of the power supply；

The battery is connected by the controller with the input of the inverter；

The output end of the inverter is connected with road lamp.

2. road lamp power supplying device according to claim 1, it is characterised in that the power switch includes diode；

The positive pole of the diode is connected with the power supply, and negative pole is connected with the input of the battery.

3. road lamp power supplying device according to claim 1, it is characterised in that the power switch include comparator A1 and PMOS T1；Comparator A1 electrode input end is connected with the battery, comparator A1 negative input and the power supply Power supply is connected, and comparator A1 output end is connected with PMOS T1 grid；

PMOS T1 source electrode is connected with the power supply, and PMOS T1 drain electrode is connected with the battery.

4. road lamp power supplying device according to claim 1, it is characterised in that the power switch include comparator A2 and NMOS tube T2；Comparator A2 electrode input end is connected with the power supply, and comparator A1 negative input stores with described Battery is connected, and comparator A2 output end is connected with NMOS tube T2 grid；

NMOS tube T2 source electrode is connected with the power supply, and NMOS tube T2 drain electrode is connected with the battery.

5. road lamp power supplying device according to claim 1, it is characterised in that the controller includes at least two inputs Mouth, at least one input/output end port and at least one output port；The input port connects with the input/output end port It is logical；The input/output end port is connected with the output port；

The photovoltaic module and the wind-power electricity generation component are connected with the input port；

The battery is connected with the input/output end port；

The inverter is connected with the output port.

6. road lamp power supplying device according to claim 1, it is characterised in that the power supply is rectification DC power supply； The input of the rectification DC power supply is electrically connected with city, the output end of the rectification DC power supply and the power switch phase Even.

7. road lamp power supplying device according to claim 1, it is characterised in that also including filter circuit；The filter circuit Input be connected with the wind-power electricity generation component, the output end of the filter circuit is connected with the controller；The wind-force Electrification component is connected by the filter circuit with the controller.

8. a kind of street lamp, it is characterised in that the street lamp power supply, road lamp power supply dress including road lamp and as described in any one of claim 1 to 7 Put, the road lamp is connected with the road lamp power supplying device.