CN201803286U - Mains Complementary Solar Street Light - Google Patents

Abstract

The utility model relates to the field of a lighting lamp. The commercial power-solar energy complementary street lamp of the utility model comprises a photovoltaic panel unit, a storage battery, an LED lamp holder, a bracket, a control circuit, a lamp post and a switching power supply connected to the input end of commercial power, wherein the control circuit is defined as follows: the photovoltaic panel unit outputs to a controller through a voltage sampling unit, the output end of the storage battery outputs to the controller through a voltage sampling unit, a current sampling unit and a direct current voltage-stabilizing unit, the LED lamp holder outputs to the controller through a current sampling unit, the inputs of the controller and the photovoltaic panel unit are connected to a PWM (pulse-width modulation) circuit unit and then output to the storage battery, the inputs of the controller and the storage battery are connected to another PWM circuit unit and then output to the LED lamp holder, the output of the controller is connected to an electronic switch and then the switching power supply, the switching power supply outputs to the LED lamp holder, the input end of the electronic switch is connected with a time accumulator, and the input end of the controller is connected with another time accumulator.

Description

Mains Complementary Solar Street Light

technical field

The utility model relates to the field of lighting fixtures, in particular to a solar street lamp.

Background technique

Solar street lights include brackets, LED lamp holders, controllers, batteries and light poles in the control box. It uses sunlight as energy. During the day, the solar panels charge the batteries, and at night the batteries supply power to the load. It does not require complicated and expensive Pipeline laying, the layout of lamps can be adjusted arbitrarily, safe, energy-saving and pollution-free, stable and reliable without manual operation, saving electricity and maintenance-free. However, when there is little solar energy storage due to rainy weather for a long time, the battery cannot supply power to the street lights.

In view of the fact that many pure solar street lights or wind-solar hybrid solar street lights are prone to system failure due to weather reasons, they have not been able to be applied to the main roads and or secondary roads of the city.

Utility model content

Therefore, aiming at the above-mentioned shortcomings, the utility model proposes a commercially complementary solar street light that is really suitable for main roads and or secondary roads in cities. When the rainy weather lasts for a long time, resulting in very little solar energy storage, the battery cannot supply power to the street lamps. At this time, the power supply of the street lamps is switched to the mains to keep the street lamps in working condition. When the weather is fine, the storage battery can fully provide the electricity required for the street lamp to work for one night, and the mains power is in a standby state.

The technical scheme of the utility model is:

Mains complementary solar street lights are composed of photovoltaic panel units, batteries, LED lamp holders, brackets, control circuits and light poles. Among them, it also includes a switching power supply connected to the input terminal of the mains. The control circuit is specifically that the above-mentioned photovoltaic panel unit outputs to a controller through a voltage sampling unit, and the above-mentioned battery output terminal passes through a voltage sampling unit and current sampling unit. The unit and the DC voltage stabilizing unit are output to the controller, the above-mentioned LED lamp head is output to the controller through a current sampling unit, the controller and the photovoltaic panel unit are connected to a PWM circuit unit and then output to the above-mentioned battery, the controller Connect another PWM circuit unit with the battery input and then output to the above-mentioned LED lamp head. The output of the controller is connected to an electronic switch to the above-mentioned switching power supply, and the switching power supply is output to the LED lamp head. The input terminal of the electronic switch An accumulator is connected, and another accumulator is connected to the input terminal of the controller.

Further, the input end of the controller is also connected with a crystal oscillator and keys, and the output end is connected with an indicator light.

Further, the controller is a single-chip microcomputer chip. Preferably, the single-chip microcomputer chip is a PIC single-chip microcomputer chip.

Further, the DC voltage stabilizing unit is a 5V DC voltage stabilizing circuit composed of capacitors C1, C2, C3, and C4 around the 7805 chip.

The technical solution of the utility model aims at the deficiency of the existing solar street lights, and provides a kind of street lights that can be used on the main roads or secondary roads of the city like the conventional city circuit lights, and will not cause the street lights not to work due to the weather. A working mode, energy saving and environmental protection, easy maintenance.

Description of drawings

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

Fig. 2 is the circuit schematic diagram of the present utility model;

Fig. 3 is a flow chart of the control steps of the present invention.

Detailed ways

The utility model is further described now in conjunction with accompanying drawing and specific embodiment.

Referring to Figure 1 and Figure 2, the mains complementary solar street light is composed of a photovoltaic panel unit 1, a battery 2, an LED lamp holder 3, a bracket, a control circuit and a light pole. Wherein, it also includes a switching power supply 4 connected to the input end of the commercial power supply to provide a backup driving power supply of the commercial power. The control circuit is specifically that the above-mentioned photovoltaic panel unit 1 is output to a controller 501 through a voltage sampling unit 507, and the output terminal of the above-mentioned storage battery 2 is output through a voltage sampling unit 511, a current sampling unit 512 and a DC voltage stabilizing unit 505. To the controller 501, the above-mentioned LED lamp holder 3 is output to the controller 501 through a current sampling unit 509, the controller 501 and the photovoltaic panel unit 1 are connected to a PWM circuit unit 506 and then output to the above-mentioned battery 2, the control The input of controller 501 and storage battery 2 is connected to another PWM circuit unit 506 and then output to the above-mentioned LED lamp holder 3. The output of the controller 501 is connected to an electronic switch 508 to the above-mentioned switching power supply 4, and the output of the switching power supply 4 is to the above-mentioned LED. In the lamp cap 3, the input end of the electronic switch 508 is connected with a timer 601, and the input end of the controller 501 is connected with another timer 602. The input end of the controller 501 is also connected with a crystal oscillator 502 and a button 504 , and the output end is connected with an indicator light 503 . The controller 501 is a single-chip microcomputer chip U1. Preferably, said single-chip microcomputer chip U1 is a PIC single-chip microcomputer chip. The DC voltage stabilizing unit 505 is a 5V DC voltage stabilizing circuit composed of capacitors C1, C2, C3, and C4 around the 7805 chip.

The photovoltaic panel unit 1 detects the voltage of the photovoltaic panel through the voltage sampling unit 507 to determine whether it is night or cloudy, and controls the battery 2 to be charged by the controller 501 in a PWM manner through the PWM circuit unit 506 . At the same time, the storage battery 2 provides working current for the controller 501 through the DC voltage stabilizing unit 505 . The battery 2 performs short-circuit protection at the battery terminal through the current sampling unit 512 . The terminal voltage of the storage battery 2 is detected by the voltage sampling unit 511 for the controller 501 to judge whether to start the commercial power supply. If it is necessary to switch to the commercial power supply, the controller 501 outputs the driving power of the switching power supply 4 connected to the commercial power input end for the LED lamp holder 3 to work by turning on the electronic switch 508 . The storage battery 2 controls the power supply of the storage battery 2 in a PWM manner by the controller 501 through the PWM circuit unit 510 to control the brightness of the LED lamp head 3 . At the same time, the controller 501 adjusts different powers according to the time of the accumulator 602 . The LED lamp holder 3 performs short-circuit protection at the load end through the current sampling unit 509 . At the same time, the accumulator 601 performs accumulative time control on the electronic switch 508 to control on-off. Wherein, the crystal oscillator 502 provides a working clock source for the controller 501, the key 504 is used to input control function instructions, and the indicator light 503 is used to display different working states, which may be an LED indicator light.

Referring to shown in Fig. 3, control method of the present utility model is:

Step 901: control program initialization; enter

Step 902: work mode initialization; enter

Step 903: Detect whether it is dark;

If not, enter step 902;

If yes, enter

Step 904: turn on the light; enter

Step 905: Detect whether the battery voltage is lower than 11V;

If yes, enter

Step 906: switch mains; enter step 908;

If no, enter

Step 907: battery power supply; enter

Step 908: mode selection judgment;

If it is light control mode, enter

Step 913: light control; enter step 914;

If it is light control + time control mode, go to step 909;

Step 914: Determine whether the full power time is up;

If not, return to step 914;

If yes, enter

Step 915: run at half power; enter

Step 916: determine whether it is dawn;

If not, return to step 915;

If yes, enter step 917;

Step 909: light control + time control; enter

Step 910: Determine whether the full power time is up;

If not, return to step 909;

If yes, enter

Step 911: run at half power; enter

Step 912: Determine whether the delay time is up;

If not, return to step 911;

If yes, enter

Step 917: turn off lights; enter

Step 918: End control.

The utility model first includes the light control and time control functions of the general controller. Secondly, using the power module, it can be set that the street lights will use full power for 5 hours before the first midnight, and switch to half power in the second half of the night to save energy. According to the characteristics of LED street lamps that will cause light decay, this power module has several modes. In the early stage, the working power of the LED street lamp can be set at 80%. Adjust the working power of the LED street light to 85% or higher, and so on, so that the LED street light always maintains the same brightness. Finally, use accumulators to monitor the working hours of solar energy and mains electricity, and make records every six months or a year. When the time of mains electricity far exceeds the working time of solar energy, then judge the working performance of the battery based on this, and then judge Do you need to replace the battery with a new one.

Although the utility model has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that, without departing from the spirit and scope of the utility model defined by the appended claims, changes in form and details may be made. Making various changes to the utility model is within the protection scope of the utility model.

Claims (5)

1. civil power complementary solar street lamp, by photovoltaic panel unit (1), battery (2), LED lamp holder (3), support, control circuit and lamp stand constitute, it is characterized in that: comprise that also one is connected in the Switching Power Supply (4) of mains electricity input end, described control circuit specifically is that above-mentioned photovoltaic panel unit (1) exports a controller (501) to by a voltage sample unit (507), above-mentioned battery (2) output is by a voltage sample unit (511), current sampling unit (512) and direct-flow voltage regulation unit (505) export this controller (501) to, above-mentioned LED lamp holder (3) exports this controller (501) to by a current sampling unit (509), after being connected a pwm circuit unit (506), this controller (501) and photovoltaic panel unit (1) input exports above-mentioned battery (2) to, this controller (501) exports above-mentioned LED lamp holder (3) to after input is connected another pwm circuit unit (506) with battery (2), this controller (501) output connects an electronic switch (508) back to above-mentioned Switching Power Supply (4), this Switching Power Supply (4) exports described LED lamp holder (3) to, described electronic switch (508) input is connected with a device (601) for a long time, and described controller (501) input is connected with another for a long time device (602).

2. civil power complementary solar street lamp according to claim 1 is characterized in that: the input of described controller (501) also is connected with crystal oscillator (502) and button (504), and output is connected with indicator lamp (503).

3. civil power complementary solar street lamp according to claim 1 and 2 is characterized in that: described controller (501) is singlechip chip (U1).

4. civil power complementary solar street lamp according to claim 3 is characterized in that: described singlechip chip (U1) is the PIC singlechip chip.

5. civil power complementary solar street lamp according to claim 1 is characterized in that: described direct-flow voltage regulation unit (505) is the 5V direct current regulation circuit of its peripheral capacitor C 1 of 7805 chips, C2, C3, C4 formation.

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