CN110636673A - A control system for solar street lights - Google Patents

Abstract

The invention discloses a control system for a solar street lamp, which comprises a solar charging control panel, a storage battery and a lamp bead, wherein the solar charging control panel is arranged on the solar charging control panel; the solar charging control device comprises a solar charging control panel, a key switch, an electric quantity alarm lamp, an infrared sensing receiving head and a mobile phone USB charging port, wherein the upper half part of the solar charging control panel is sequentially provided with an LED negative electrode output end, an LED positive electrode output end, a battery negative electrode output end and a battery positive electrode output end matched with the battery negative electrode output end; the MPPT and PWM charging mode are adopted to combine together the mode, convert the electric energy into with the maximum light wave frequency under the weak condition of sunshine to carry out automatic charging when detecting battery residual capacity and reaching the certain degree, the power of lamp pearl is promoted when using, reduces the life who prolongs the battery from power consumptive, in addition, can also realize the purpose that intelligence falls power through power and energy conversion mode.

Description

A control system for solar street lights

technical field

The invention specifically relates to a control system for solar street lamps.

Background technique

The output power of the LED lamp of the existing solar street lamp is to use a resistor to reduce the current to achieve the purpose of reducing the power. Just add a diode to charge the battery directly and rely on the protection board to stop the simple charging mode.

And the discharge of this simple charging mode will cause the light of the light to be very bright when the battery is fully charged at first, and the light will be dim when the battery voltage is low. This lighting mode is purely DC added to the lamp bead. It is easy to cause the aging of the lamp pearl. The protection board in the battery circuit increases the internal resistance in the circuit and reduces the output power of the lamp, resulting in the power of the entire lamp cannot be increased and the self-consumption is large. In addition, the traditional battery is charged after the power is exhausted. This charging method Although it can be used for cyclic charging, it will cause the number of cyclic charging of the battery to be lost. If the number of cyclic charging is too high, the service life of the battery will be affected, and it will easily lead to damage and increase the maintenance cost.

Contents of the invention

In view of this, the object of the present invention is to provide a control system for solar street lamps with high charging efficiency, low power consumption and intelligent power reduction.

In order to solve the problems of the technologies described above, the technical solution of the present invention is:

A control system for solar street lamps, comprising a solar charging control board, a storage battery connected externally to the solar charging control board, and lamp beads connected externally to the solar charging control board; the upper half of the solar charging control board is sequentially equipped with LED negative output terminal, the positive output terminal of the LED matched with the negative output terminal of the LED, the negative output terminal of the battery is installed, the positive output terminal of the battery matched with the negative output terminal of the battery, the lower part of the solar charging control board is sequentially Installed with a solar charging input terminal, a mobile phone charger input terminal, a button switch, a battery warning light, an infrared induction receiving head and a mobile phone USB charging port.

Preferably, the voltage of the solar charging control panel is 5V-6V, and the current is a maximum input of 4A.

Preferably, the voltage of the solar charging input terminal is 6V, and the maximum current is 4A.

Preferably, the voltage of the input terminal of the mobile phone charger is 5V, and the maximum current is 2A.

Preferably, the power warning light is divided into three levels of power indications, which are 50% power indication, 75% power capacity indication and 100% power capacity indication.

Preferably, the lamp bead is a PWM high-frequency lamp bead with a driving voltage of 3.52V.

The technical effect of the present invention is mainly reflected in the following aspects: the control system for solar street lights adopts the combination mode of MPPT and PWM charging mode, and converts electric energy at the maximum light wave frequency under weak sunlight conditions, and detects that the remaining power of the battery reaches a certain level With automatic charging, the power of the lamp beads is increased during use, reducing self-consumption to prolong the service life of the battery. In addition, it can also achieve the purpose of intelligent power reduction through the power and energy conversion mode.

Description of drawings

Fig. 1 is a structural frame diagram of a control system for solar street lamps of the present invention;

Fig. 2 is a circuit diagram of a control system for solar street lamps according to the present invention.

Detailed ways

Below in conjunction with the accompanying drawings, the specific embodiments of the present invention will be further described in detail, so as to make the technical solution of the present invention easier to understand and grasp.

In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as a limitation of the present invention.

In addition, in this specific embodiment, if the connection or fixing method between the components is not specified in particular, the connection or fixing method can be fixed by bolts or pins commonly used in the prior art, or connected by pin shafts, etc. Therefore, it will not be described in detail in this embodiment.

Example

A control system for solar street lamps, as shown in Figure 1, includes a solar charging control panel, a storage battery connected externally to the solar charging control panel, and a lamp bead externally connected to the solar charging control panel; the upper half of the solar charging control panel The negative output terminal of the LED, the positive output terminal of the LED matched with the negative output terminal of the LED, the negative output terminal of the battery, the positive output terminal of the battery matched with the negative output terminal of the battery are installed in sequence, and the solar charging control The lower part of the board is sequentially installed with a solar charging input terminal, a mobile phone charger input terminal, a button switch, a battery warning light, an infrared induction receiving head and a mobile phone USB charging port.

In this embodiment, the voltage of the solar charging control board is 5V-6V, and the current is a maximum input of 4A. When in use, the solar charging control board has its own battery overcharge and overdischarge protection function, and the solar charging control board The CPU will perform voltage detection and protection.

In this embodiment, the voltage of the solar charging input terminal is 6V, and the maximum current is 4A.

In this embodiment, the voltage of the input terminal of the mobile phone charger is 5V, and the maximum current is 2A.

In this embodiment, the power warning light is divided into three levels of power indications, namely 50% power indication, 75% power capacity indication and 100% power capacity indication. Storage, when the power warning light flashes, it means that it needs to be charged in time.

In this embodiment, the lamp bead is a PWM high-frequency lamp bead with a driving voltage of 3.52V, which can be pulsed to the highest point during use.

The control system for solar street lights of this application is suitable for input working voltage of 3.2V and 3.7V lithium iron phosphate and ternary lithium battery packs, the maximum power of the output voltage (LED load) is adjustable, and the maximum current is 4A output. Generally, the power is 12W. The solar charging control board with light control system does not need manual adjustment. The required working time and power can be programmed according to requirements, and once fixed, there is no need to change it.

The performance parameters of the solar charging control board are shown in the following table: (Refer to the technical specifications of the corresponding components, test at room temperature 25 ° C, relative humidity ≤ 90%)

Taking the 3.7V solar charging control board as an example, its function description is as follows:

1. Press the button switch once to set the maximum brightness of the power section, press it again to switch to the 50% brightness of the power section, press the button again to switch to the strobe function, and press it again to turn off the power section.

2. When the button switch button is pressed to turn on the light, press it again and delay for about 3 seconds to switch to the next power section. There are 4 lighting power sections in total, which are used in turn; the maximum lighting power section is set in the fourth section (also It is the fourth button on the remote control).

3. The power warning light indicates that the default battery pack has 50% capacity storage. When the light flashes, it means that the device needs to be charged in time.

4. When using the USB charging port of the mobile phone, you need to plug in the mobile phone first and then insert this interface. When the CPU detects the mobile phone protocol signal, it will start the boost mode (5V maximum current 2A) to charge the mobile phone; when the mobile phone is pulled out of the charging line, it will be 20 seconds later The CPU turns off the boost system; if you need to recharge the mobile phone, you need to return to the above actions; when the battery is in the protection state, you don’t need to activate this method by charging to ensure that it can be used normally when it is completely disconnected from the external power supply.

5. The 5V input terminal of the mobile phone charger is plugged into a conventional mobile phone charger to charge the device. When the battery pack of the device is full, it will automatically stop charging.

6. The solar 6V charging input terminal can be connected to a solar panel with a maximum power of 6V 25W to charge the device. The device will automatically stop when the battery pack is fully charged and automatically turn on the lights at night.

The technical effect of the present invention is mainly reflected in the following aspects: the control system for solar street lights adopts the combination mode of MPPT and PWM charging mode, and converts electric energy at the maximum light wave frequency under weak sunlight conditions, and detects that the remaining power of the battery reaches a certain level With automatic charging, the power of the lamp beads is increased during use, reducing self-consumption to prolong the service life of the battery. In addition, it can also achieve the purpose of intelligent power reduction through the power and energy conversion mode.

Of course, the above are only typical examples of the present invention. In addition, the present invention can also have other multiple specific implementation modes. All technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope of protection claimed by the present invention. Inside.

Claims (6)

1. A control system for a solar street lamp comprises a solar charging control panel, a storage battery and a lamp bead, wherein the storage battery is externally connected with the solar charging control panel; the method is characterized in that: LED negative pole output end is installed in proper order to the first half of solar charging control panel, with LED negative pole output end complex LED positive output end, installs battery negative pole output end, with battery negative pole output end complex battery positive output end, solar charging control panel's the latter half installs solar charging input end, cell-phone charger input end, button change over switch, electric quantity alarm lamp, infrared induction receiving head and cell-phone USB charging mouth in proper order.

2. A control system for a solar street lamp as claimed in claim 1, characterized in that: the voltage of the solar charging control panel is 5V-6V, and the current is input at maximum 4A.

3. A control system for a solar street lamp as claimed in claim 1, characterized in that: the voltage of the solar charging input end is 6V, and the maximum current is 4A.

4. A control system for a solar street lamp as claimed in claim 1, characterized in that: the voltage of the input end of the mobile phone charger is 5V, and the maximum current is 2A.

5. A control system for a solar street lamp as claimed in claim 1, characterized in that: the electric quantity alarm lamp is divided into three levels of electric quantity indication, namely electric quantity 50% indication, electric quantity 75% indication and electric quantity 100% indication.

6. A control system for a solar street lamp as claimed in claim 1, characterized in that: the lamp bead is a PWM high-frequency lamp bead with 3.52V driving voltage.