Energy storage control circuit based on solar cell

Abstract

The utility model discloses an energy storage control circuit based on a solar cell, which relates to the field of energy storage and comprises a solar power supply module used for converting solar energy into electric energy and outputting the electric energy to a voltage stabilization and switch module; the voltage stabilization and switch module is used for constructing voltage stabilization output and supplying power to the energy storage control module and the energy storage indication module; meanwhile, as a switch, the power supply module stops supplying power to the energy storage control module and the energy storage indication module after receiving a circuit break signal of the energy storage control module; the energy storage control module is used for the storage battery to store electric energy and outputting an open circuit signal to the voltage stabilizing and switching module after the storage battery is charged; compared with the prior art, the utility model has the beneficial effects that the voltage stabilizing and switching module has voltage stabilizing and switching effects, only one diode is additionally arranged in the structure, and the voltage stabilizing and switching module disconnects a power supply loop after receiving a signal that the storage battery of the energy storage control module is fully charged, so that the storage battery is prevented from being overcharged.

Description

Technical Field

[0001] The utility model relates to the field of energy storage, in particular to an energy storage control circuit based on solar cells. Background Art

[0002] Solar power is a technology that converts solar energy into electricity to provide a stable, environmentally friendly power supply for devices or systems. With the transformation of the global energy structure and the increasing awareness of environmental protection, the application of solar power technology in various fields is becoming more and more extensive.

[0003] In daily use, it is difficult to use up the electricity generated by solar energy in real time. Therefore, an energy storage circuit is designed to store electricity for the battery. After the existing battery has stored energy, a switching circuit is required to disconnect the charging circuit in time, resulting in a more complex structure that needs to be improved. Utility Model Content

[0004] The purpose of the present utility model is to provide an energy storage control circuit based on solar cells to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A solar cell-based energy storage control circuit, comprising:

[0007] Solar power supply module, used to convert solar energy into electrical energy and output it to the voltage stabilization and switching module;

[0008] The voltage stabilization and switching module is used to establish a regulated voltage output to supply power to the energy storage control module and the energy storage indication module. It also acts as a switch and stops supplying power to the energy storage control module and the energy storage indication module upon receiving a circuit breaker signal from the energy storage control module.

[0009] The energy storage control module is used to store electrical energy in the battery. After the battery is charged, it outputs a circuit breaker signal to the voltage stabilization and switch module.

[0010] Energy storage indicator module, used to illuminate when the battery is charging and stop illuminating when the battery stops charging;

[0011] The solar power supply module is connected to the voltage stabilizing and switching module, the voltage stabilizing and switching module is connected to the energy storage control module and the energy storage indication module, and the energy storage control module is connected to the energy storage indication module.

[0012] As a further solution of the present invention: the solar power supply module includes a solar cell E1, a resistor R1, a capacitor C1, and a diode D1. The negative pole of the solar cell E1 is grounded, the positive pole of the solar cell E1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to one end of the capacitor C1 and the positive pole of the diode D1, the other end of the capacitor C1 is grounded, and the negative pole of the diode D1 is connected to the voltage stabilization and switching module.

[0013] As a further solution of the present utility model: the voltage stabilizing and switching module includes a resistor R2, a MOS tube V1, a controllable precision voltage stabilizing source Z1, a diode D2, a capacitor C2, a resistor R3, and a potentiometer RP1. The controllable precision voltage stabilizing source Z1 is a TL431. The D pole of the MOS tube V1 is connected to one end of the resistor R2 and the solar power supply module. The other end of the resistor R2 is connected to the G pole of the MOS tube V1 and the negative pole of the controllable precision voltage stabilizing source Z1. The positive pole of the controllable precision voltage stabilizing source Z1 is grounded. The reference pole of the controllable precision voltage stabilizing source Z1 is connected to the negative pole of the diode D2 and the energy storage control module. The positive pole of the diode D2 is connected to one end of the capacitor C2, one end of the resistor R3, and one end of the potentiometer RP1. The other end of the capacitor C2 is grounded, the other end of the resistor R3 is grounded, the S pole of the MOS tube V1 is connected to the other end of the potentiometer RP1, the energy storage control module, and the energy storage indication module.

[0014] As a further solution of the present invention: the energy storage control module includes a diode D3, a resistor R4, a battery E2, a diode D4, a resistor R7, and a resistor R8. The positive electrode of the diode D3 is connected to the voltage stabilizing and switching module, the negative electrode of the diode D3 is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the positive electrode of the battery E2, the negative electrode of the diode D4, and the energy storage indication module, the negative electrode of the battery E2 is grounded, the positive electrode of the diode D4 is connected to one end of the resistor R7 and one end of the resistor R8, the other end of the resistor R7 is grounded, and the other end of the resistor R8 is connected to the voltage stabilizing and switching module.

[0015] As a further solution of the present utility model: the energy storage indication module includes a resistor R5, a transistor V2, a resistor R6, and a diode D5. The emitter of the transistor V2 is connected to the voltage stabilizing and switching module, the base of the transistor V2 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the energy storage control module, the collector of the transistor V2 is connected to one end of the resistor R6, the other end of the resistor R6 is connected to the positive electrode of the diode D5, and the negative electrode of the diode D5 is grounded.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the voltage stabilizing and switching module of the present invention has both voltage stabilizing and switching effects, and the structure only adds one diode. After receiving the signal from the energy storage control module that the battery is fully charged, the voltage stabilizing and switching module disconnects the power supply circuit to avoid overcharging of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The schematic diagram of an energy storage control circuit based on solar cells.

[0018] Figure 2 The circuit diagram is a circuit diagram of an energy storage control circuit based on solar cells.

[0019] Figure 3 This is the pin diagram of TL431. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 , an energy storage control circuit based on a solar cell, comprising:

[0022] Solar power supply module, used to convert solar energy into electrical energy and output it to the voltage stabilization and switching module;

[0023] The voltage stabilization and switching module is used to establish a regulated voltage output to supply power to the energy storage control module and the energy storage indication module. It also acts as a switch and stops supplying power to the energy storage control module and the energy storage indication module upon receiving a circuit breaker signal from the energy storage control module.

[0024] The energy storage control module is used to store electrical energy in the battery. After the battery is charged, it outputs a circuit breaker signal to the voltage stabilization and switch module.

[0025] Energy storage indicator module, used to illuminate when the battery is charging and stop illuminating when the battery stops charging;

[0026] The solar power supply module is connected to the voltage stabilizing and switching module, the voltage stabilizing and switching module is connected to the energy storage control module and the energy storage indication module, and the energy storage control module is connected to the energy storage indication module.

[0027] In this example: See Figure 2 The solar power supply module includes a solar cell E1, a resistor R1, a capacitor C1, and a diode D1. The negative electrode of the solar cell E1 is grounded, the positive electrode of the solar cell E1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to one end of the capacitor C1 and the positive electrode of the diode D1, the other end of the capacitor C1 is grounded, and the negative electrode of the diode D1 is connected to the voltage stabilization and switching module.

[0028] Solar cell E1 converts solar energy into electrical energy and outputs it to the voltage stabilization and switch module after current limiting by resistor R1, filtering by capacitor C1, and backflow prevention by diode D1.

[0029] In this example: See Figure 2 and Figure 3 The voltage stabilizing and switching module includes a resistor R2, a MOS tube V1, a controllable precision voltage stabilizing source Z1, a diode D2, a capacitor C2, a resistor R3, and a potentiometer RP1. The controllable precision voltage stabilizing source Z1 is a TL431. The D pole of the MOS tube V1 is connected to one end of the resistor R2 and the solar power supply module. The other end of the resistor R2 is connected to the G pole of the MOS tube V1 and the negative pole of the controllable precision voltage stabilizing source Z1. The positive pole of the controllable precision voltage stabilizing source Z1 is grounded. The reference pole of the controllable precision voltage stabilizing source Z1 is connected to the negative pole of the diode D2 and the energy storage control module. The positive pole of the diode D2 is connected to one end of the capacitor C2, one end of the resistor R3, and one end of the potentiometer RP1. The other end of the capacitor C2 is grounded. The other end of the resistor R3 is grounded. The S pole of the MOS tube V1 is connected to the other end of the potentiometer RP1, the energy storage control module, and the energy storage indication module.

[0030] At the beginning, based on the resistor R2, the G pole of the MOS tube V1 is at a high level, and the MOS tube V1 outputs a high level. The resistor R3 samples the output voltage and feeds it back to the reference pole of the controllable precision voltage regulator Z1. The larger the reference pole voltage of the TL431, the smaller the negative pole voltage. The smaller the reference pole voltage, the larger the negative pole voltage. Therefore, the larger the output voltage of the MOS tube V1, the smaller the negative pole voltage of the controllable precision voltage regulator Z1, the lower the conduction degree of the MOS tube V1, the smaller the output voltage of the MOS tube V1, and the higher the conduction degree of the MOS tube V1, thereby constructing a regulated voltage output.

[0031] In this example: See Figure 2 The energy storage control module includes a diode D3, a resistor R4, a battery E2, a diode D4, a resistor R7, and a resistor R8. The positive electrode of the diode D3 is connected to the voltage stabilization and switch module, the negative electrode of the diode D3 is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the positive electrode of the battery E2, the negative electrode of the diode D4, and the energy storage indication module, the negative electrode of the battery E2 is grounded, the positive electrode of the diode D4 is connected to one end of the resistor R7 and one end of the resistor R8, the other end of the resistor R7 is grounded, and the other end of the resistor R8 is connected to the voltage stabilization and switch module.

[0032] The output charges the battery E2 through the diode D3 and the resistor R4. When the battery E2 is fully charged, the voltage of the battery E2 is sufficient to turn on the voltage-stabilizing diode D4, which feeds back a circuit-breaking signal to the reference electrode of the controllable precision voltage-stabilizing source Z1. At this time, the voltage is relatively large, which makes the G-pole voltage of the MOS tube V1 relatively small, insufficient to turn on the MOS tube V1, disconnecting the power supply circuit and stopping charging the battery E1.

[0033] In this example: See Figure 2 The energy storage indication module includes a resistor R5, a transistor V2, a resistor R6, and a diode D5. The emitter of the transistor V2 is connected to the voltage regulator and switch module, the base of the transistor V2 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the energy storage control module, the collector of the transistor V2 is connected to one end of the resistor R6, the other end of the resistor R6 is connected to the positive electrode of the diode D5, and the negative electrode of the diode D5 is grounded.

[0034] When the battery E2 is charging, the base voltage of the transistor V2 is small, the transistor V2 is turned on, and the light-emitting diode D5 lights up to indicate. When the battery E2 is fully charged, the base voltage of the transistor V2 is large, the transistor V2 is turned off, and the light-emitting diode D5 stops emitting light.

[0035] The working principle of the utility model is as follows: the solar power supply module is used to convert solar energy into electrical energy and output it to the voltage stabilizing and switching module; the voltage stabilizing and switching module is used to establish a regulated voltage output to supply power to the energy storage control module and the energy storage indication module; at the same time, it acts as a switch and stops supplying power to the energy storage control module and the energy storage indication module after receiving a circuit breaker signal from the energy storage control module; the energy storage control module is used to store electrical energy in a battery and output a circuit breaker signal to the voltage stabilizing and switching module after the battery is charged; the energy storage indication module is used to emit light to indicate when the battery is charging and stop emitting light to indicate when the battery stops charging.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A solar cell-based energy storage control circuit, characterized in that: The solar cell-based energy storage control circuit includes: Solar power supply module, used to convert solar energy into electrical energy and output it to the voltage stabilization and switching module; The voltage stabilization and switching module is used to establish a regulated voltage output to supply power to the energy storage control module and the energy storage indication module. It also acts as a switch and stops supplying power to the energy storage control module and the energy storage indication module upon receiving a circuit breaker signal from the energy storage control module. The energy storage control module is used to store electrical energy in the battery. After the battery is charged, it outputs a circuit breaker signal to the voltage stabilization and switch module. Energy storage indicator module, used to illuminate when the battery is charging and stop illuminating when the battery stops charging; The solar power supply module is connected to the voltage stabilizing and switching module, the voltage stabilizing and switching module is connected to the energy storage control module and the energy storage indication module, and the energy storage control module is connected to the energy storage indication module.

2. The solar cell-based energy storage control circuit according to claim 1, characterized in that: The solar power supply module includes a solar cell E1, a resistor R1, a capacitor C1, and a diode D1. The negative pole of the solar cell E1 is grounded, the positive pole of the solar cell E1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to one end of the capacitor C1 and the positive pole of the diode D1, the other end of the capacitor C1 is grounded, and the negative pole of the diode D1 is connected to the voltage stabilization and switching module.

3. The solar cell-based energy storage control circuit according to claim 1, characterized in that: The voltage stabilizing and switching module includes a resistor R2, a MOS tube V1, a controllable precision voltage stabilizing source Z1, a diode D2, a capacitor C2, a resistor R3, and a potentiometer RP1. The controllable precision voltage stabilizing source Z1 is a TL431. The D pole of the MOS tube V1 is connected to one end of the resistor R2 and the solar power supply module. The other end of the resistor R2 is connected to the G pole of the MOS tube V1 and the negative pole of the controllable precision voltage stabilizing source Z1. The positive pole of the controllable precision voltage stabilizing source Z1 is grounded. The reference pole of the controllable precision voltage stabilizing source Z1 is connected to the negative pole of the diode D2 and the energy storage control module. The positive pole of the diode D2 is connected to one end of the capacitor C2, one end of the resistor R3, and one end of the potentiometer RP1. The other end of the capacitor C2 is grounded. The other end of the resistor R3 is grounded. The S pole of the MOS tube V1 is connected to the other end of the potentiometer RP1, the energy storage control module, and the energy storage indication module.

4. The solar cell-based energy storage control circuit according to claim 3, characterized in that: The energy storage control module includes a diode D3, a resistor R4, a battery E2, a diode D4, a resistor R7, and a resistor R8. The positive electrode of the diode D3 is connected to the voltage stabilization and switching module, the negative electrode of the diode D3 is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the positive electrode of the battery E2, the negative electrode of the diode D4, and the energy storage indication module, the negative electrode of the battery E2 is grounded, the positive electrode of the diode D4 is connected to one end of the resistor R7 and one end of the resistor R8, the other end of the resistor R7 is grounded, and the other end of the resistor R8 is connected to the voltage stabilization and switching module.

5. The solar cell-based energy storage control circuit according to claim 1, characterized in that: The energy storage indication module includes a resistor R5, a transistor V2, a resistor R6, and a diode D5. The emitter of the transistor V2 is connected to the voltage stabilizing and switching module, the base of the transistor V2 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the energy storage control module, the collector of the transistor V2 is connected to one end of the resistor R6, the other end of the resistor R6 is connected to the positive electrode of the diode D5, and the negative electrode of the diode D5 is grounded.

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