CN216121879U - Solar charging control circuit of energy storage power supply - Google Patents
Solar charging control circuit of energy storage power supply Download PDFInfo
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- CN216121879U CN216121879U CN202122600307.3U CN202122600307U CN216121879U CN 216121879 U CN216121879 U CN 216121879U CN 202122600307 U CN202122600307 U CN 202122600307U CN 216121879 U CN216121879 U CN 216121879U
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Abstract
The utility model relates to the technical field of solar power generation, in particular to a solar charging control circuit of an energy storage power supply; a follow current loop is formed by the diode D1, the inductor L1 and the storage battery, and is controlled by the switch unit to form a storage battery access polarity control circuit, when the storage battery is correctly connected, the switch unit is closed to normally work, and when the electric polarity of the storage battery is reversely connected, the switch unit is disconnected to prevent the reverse connection of the circuit and avoid the occurrence of accidents caused by fire; the storage battery enters a discharging state through the control switch S1, the integrity of each charging and discharging of the storage battery is ensured, and the service life of the storage battery is prolonged.
Description
Technical Field
The utility model relates to the technical field of solar power generation, in particular to a solar charging control circuit of an energy storage power supply.
Background
The solar charger is a device for converting solar energy into electric energy, the solar energy is converted into the electric energy and then stored in a storage battery, and the storage battery can be any type of electric storage device and generally consists of a solar photocell, a storage battery and a voltage regulating element.
In the existing solar charging technology, if the polarity of the storage battery is inadvertently connected in a reverse manner, the storage battery is short-circuited through a follow current loop, so that serious accidents such as fire disasters and personal injuries are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a solar charging control circuit of an energy storage power supply, and aims to solve the technical problem that serious accidents such as fire, personal injury and the like are caused by short circuit of a storage battery through a follow current loop if the polarity of the storage battery is inadvertently reversed in the solar charging technology in the prior art.
In order to achieve the above object, the present invention provides a solar charging control circuit for a power storage source, which comprises an input terminal, a storage battery, an inductor L1, a first switching tube VT1, a second switching tube VT2, a diode D1, a switching unit and a control module, the positive electrodes of the input ends are respectively and electrically connected with the positive electrode of the diode D1 and the inductor L1, the other end of the inductor L1 is electrically connected with the anode of the storage battery, the cathode of the diode D1 is electrically connected with the switch unit, one end of the first switch tube VT1 is electrically connected with the negative electrode of the input end, the other end of the first switch tube VT1 is respectively electrically connected with the switch unit and the second switch tube VT2, the other end of the second switching tube VT2 is respectively electrically connected with the negative electrode of the storage battery, and the control module is respectively electrically connected with the switching unit and the storage battery.
The first switch tube VT1 and the second switch tube VT2 adopt MOSFET tubes or IGBT tubes.
Wherein, the switch unit adopts a relay or a contactor.
Wherein, the control module comprises a light emitting diode LED1, a potentiometer RP1, a first error amplifier U1, a second error amplifier U1, a switch S1, a diode D1, a resistor R1, a transistor Q1 and a transistor Q1, wherein, the anode of the light emitting diode LED1 is electrically connected with the power source VCC, the potentiometer RP1, the resistor R1 and the light emitting diode LED1 respectively, the cathode of the light emitting diode LED1 is electrically connected with the resistor R1 and the collector of the transistor Q1 respectively, the emitter of the transistor Q1 is electrically connected with the emitter of the resistor R1, the emitter of the transistor Q1 and the switch S1 respectively, and the other end of the resistor R1 is electrically connected with the second error amplifier R1, the in-phase end of the second error amplifier U2 is electrically connected to the potentiometer RP2, the other end of the potentiometer RP2 is grounded, the output end of the second error amplifier U2 is electrically connected to the negative electrode of the diode D2, the positive electrode of the diode D2 is electrically connected to the resistor R3, the base of the transistor Q2 and the positive electrode of the diode D3, the negative electrode of the diode D3 is electrically connected to the base of the transistor Q1, the resistor R7 and the output end of the first error amplifier U1, the inverting end of the first error amplifier U1 is electrically connected to the resistor R5, the other end of the resistor R5 is electrically connected to the resistor R6, the resistor R7, the switch S1 and the collector of the transistor Q1, the other end of the resistor R6 is electrically connected to the positive electrode of the light emitting diode LED1, and the negative electrode of the light emitting diode LED1 is grounded, the cathode of the light emitting diode LED3 is electrically connected to the potentiometer RP1, and the potentiometer RP1 is electrically connected to the inverting terminal of the first error amplifier U1.
The transistor Q1 is a PNP transistor.
According to the solar charging control circuit of the energy storage power supply, a follow current loop is formed by the diode D1, the inductor L1 and the storage battery, and is controlled by the switch unit, so that a storage battery access polarity control circuit is formed; the storage battery enters a discharging state by controlling the switch S1, the integrity of the storage battery in each charging and discharging is ensured, and the service life of the battery is prolonged
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a solar charging control circuit of an energy storage power supply provided by the utility model.
Fig. 2 is a schematic circuit diagram of a control module according to the present invention.
1-input end, 2-storage battery, 3-switch unit and 4-control module.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
Referring to fig. 1 and 2, the present invention provides a solar charging control circuit for an energy storage power supply, which includes an input terminal 1, a storage battery 2, an inductor L1, a first switch tube VT1, a second switch tube VT2, a diode D1, a switch unit 3, and a control module 4, wherein an anode of the input terminal 1 is electrically connected to an anode of the diode D1 and the inductor L1, respectively, a cathode of the inductor L1 is electrically connected to an anode of the storage battery 2, a cathode of the diode D1 is electrically connected to the switch unit 3, an end of the first switch tube VT1 is electrically connected to a cathode of the input terminal 1, another end of the first switch tube VT1 is electrically connected to the switch unit 3 and the second switch tube VT2, and another end of the second switch tube VT2 is electrically connected to a cathode of the storage battery 2, the control module 4 is electrically connected with the switch unit 3 and the storage battery 2 respectively; MOSFET (metal oxide semiconductor field effect transistor) tubes or IGBT tubes adopted by the first switching tube VT1 and the second switching tube VT 2; the switch unit 3 adopts a relay or a contactor.
In the present embodiment, the diode D1, the inductor L1 and the battery 2 form a freewheeling circuit, and the switch unit 3 controls the freewheeling circuit to switch in the polarity control circuit of the battery 2, when the battery 2 is correctly connected, the switch unit 3 is closed to normally operate, and when the battery 2 is reversely connected with polarity, the switch unit 3 is opened to prevent the reverse connection of the circuit, thereby preventing the occurrence of accidents due to fire.
Further, the control module 4 includes a light emitting diode LED1, a potentiometer RP1, a first error amplifier U1, a second error amplifier U1, a switch S1, a diode D1, a resistor R1, a transistor Q1, and a transistor Q1, wherein an anode of the light emitting diode LED1 is electrically connected to the power source VCC, the potentiometer RP1, the resistor R1, and the light emitting diode LED1, a cathode of the light emitting diode LED1 is electrically connected to the resistor R1 and a collector of the transistor Q1, an emitter of the transistor Q1 is electrically connected to the emitter of the resistor R1, an emitter of the transistor Q1, and the other end of the resistor R1 is electrically connected to the second error amplifier U1, the in-phase end of the second error amplifier U2 is electrically connected to the potentiometer RP2, the other end of the potentiometer RP2 is grounded, the output end of the second error amplifier U2 is electrically connected to the negative electrode of the diode D2, the positive electrode of the diode D2 is electrically connected to the resistor R3, the base of the transistor Q2 and the positive electrode of the diode D3, the negative electrode of the diode D3 is electrically connected to the base of the transistor Q1, the resistor R7 and the output end of the first error amplifier U1, the inverting end of the first error amplifier U1 is electrically connected to the resistor R5, the other end of the resistor R5 is electrically connected to the resistor R6, the resistor R7, the switch S1 and the collector of the transistor Q1, the other end of the resistor R6 is electrically connected to the positive electrode of the light emitting diode LED1, and the negative electrode of the light emitting diode LED1 is grounded, the cathode of the light emitting diode LED3 is electrically connected with the potentiometer RP1, and the potentiometer RP1 is electrically connected with the inverting terminal of the first error amplifier U1; the transistor Q1 adopts a PNP transistor.
In this embodiment, at this time, the voltage of the inverting terminal of the first error amplifier U1 is equal to the voltage of the battery 2 and is greater than the voltage of the non-inverting input terminal 1, the inverting output terminal of the first error amplifier U1 outputs a low level, the transistor Q1 is turned on, the battery 2 is discharged through the resistor R7, the inverting terminal of the first error amplifier U1 is also powered, the output terminal of the first error amplifier U1 still outputs a low level, the transistor Q2 is immediately turned off while the transistor Q1 is turned on, when the voltage of the battery 2 is discharged to a certain value, the first error amplifier U1 inverts, the output terminal outputs a high level, and the and gate also outputs a high level, so that the transistor Q1 is turned off, the transistor Q2 is turned on, and the battery 2 is turned from discharging to a charging state; the switch S1 is controlled to enable the storage battery 2 to enter a discharging state, the integrity of each charging and discharging of the storage battery 2 is guaranteed, and the service life of the battery is prolonged.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (5)
1. A solar charging control circuit of an energy storage power supply is characterized in that,
the energy storage power supply solar charging control circuit comprises an input end, a storage battery, an inductor L1, a first switch tube VT1, a second switch tube VT2, a diode D1, a switch unit and a control module, wherein the anode of the input end is respectively connected with the anode of the diode D1 and the inductor L1, the other end of the inductor L1 is electrically connected with the anode of the storage battery, the cathode of the diode D1 is electrically connected with the switch unit, one end of the first switch tube VT1 is electrically connected with the cathode of the input end, the other end of the first switch tube VT1 is respectively electrically connected with the switch unit and the second switch tube VT2, the other end of the second switch tube VT2 is respectively electrically connected with the cathode of the storage battery, and the control module is respectively electrically connected with the switch unit and the storage battery.
2. The energy storage power supply solar charging control circuit of claim 1,
the first switch tube VT1 and the second switch tube VT2 are MOSFET tubes or IGBT tubes.
3. The solar charging control circuit of claim 2,
the switch unit adopts a relay or a contactor.
4. The energy storage power supply solar charging control circuit of claim 3,
the control module comprises a light emitting diode LED1, a potentiometer RP1, a first error amplifier U1, a second error amplifier U1, a switch S1, a diode D1, a resistor R1, a transistor Q1 and a transistor Q1, wherein the anode of the light emitting diode LED1 is electrically connected with the power supply VCC, the potentiometer RP1, the resistor R1 and the light emitting diode LED1 respectively, the cathode of the light emitting diode LED1 is electrically connected with the resistor R1 and the collector of the transistor Q1 respectively, the emitter of the transistor Q1 is electrically connected with the resistor R1, the emitter of the transistor Q1 and the switch S1 respectively, and the other end of the resistor R1 is electrically connected with the second error amplifier U1, the in-phase end of the second error amplifier U2 is electrically connected to the potentiometer RP2, the other end of the potentiometer RP2 is grounded, the output end of the second error amplifier U2 is electrically connected to the negative electrode of the diode D2, the positive electrode of the diode D2 is electrically connected to the resistor R3, the base of the transistor Q2 and the positive electrode of the diode D3, the negative electrode of the diode D3 is electrically connected to the base of the transistor Q1, the resistor R7 and the output end of the first error amplifier U1, the inverting end of the first error amplifier U1 is electrically connected to the resistor R5, the other end of the resistor R5 is electrically connected to the resistor R6, the resistor R7, the switch S1 and the collector of the transistor Q1, the other end of the resistor R6 is electrically connected to the positive electrode of the light emitting diode LED1, and the negative electrode of the light emitting diode LED1 is grounded, the cathode of the light emitting diode LED3 is electrically connected to the potentiometer RP1, and the potentiometer RP1 is electrically connected to the inverting terminal of the first error amplifier U1.
5. The energy storage power supply solar charging control circuit of claim 4,
the transistor Q1 adopts a PNP transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122600307.3U CN216121879U (en) | 2021-10-26 | 2021-10-26 | Solar charging control circuit of energy storage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122600307.3U CN216121879U (en) | 2021-10-26 | 2021-10-26 | Solar charging control circuit of energy storage power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216121879U true CN216121879U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122600307.3U Active CN216121879U (en) | 2021-10-26 | 2021-10-26 | Solar charging control circuit of energy storage power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216121879U (en) |
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2021
- 2021-10-26 CN CN202122600307.3U patent/CN216121879U/en active Active
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