CN115149512A

CN115149512A - Reverse connection preventing circuit and energy storage power supply

Info

Publication number: CN115149512A
Application number: CN202210719109.5A
Authority: CN
Inventors: 陈力峰
Original assignee: Shenzhen Ebull Technology Ltd
Current assignee: Shenzhen Yuntong Tianxia Technology Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-04

Abstract

The application discloses an anti-reverse connection circuit and an energy storage power supply; wherein, prevent reverse-connection circuit includes: the input circuit comprises a positive electrode input end, a negative electrode input end, an input circuit and a control unit; the positive input end is connected with the first end of the solar cell panel; the negative input end is connected with the second end of the solar cell panel; the first input end of the input circuit is connected with the anode input end; the second input end of the input circuit is connected with the negative electrode input end; the input circuit is also connected with the control unit; the first output end of the input circuit is connected with the first input end of the charging circuit, the second output end of the input circuit is connected with the second input end of the charging circuit, and when the input circuit is conducted, electric energy obtained from the solar cell panel is processed and then transmitted to the charging circuit to charge the battery; the control unit is used for: when the solar cell panel is in positive connection, the input circuit is controlled to be conducted, and when the solar cell panel is in reverse connection, the input circuit is controlled to be disconnected, so that the battery, the input circuit connected with the battery in series and the charging circuit are protected.

Description

Reverse connection preventing circuit and energy storage power supply

Technical Field

The application relates to the technical field of electronic circuits, in particular to an anti-reverse connection circuit and an energy storage power supply.

Background

The solar cell panel is used for charging the battery in the battery, the solar cell panel is reversely connected with the battery due to the fact that the positive electrode and the negative electrode of the electric energy output connector of the solar cell panel are reversely welded, or in the process of connecting the solar cell panel with the battery, the electric energy output connector of the solar cell panel is manually reversely connected with the electric energy input connector of the battery, and in the moment when the solar cell panel is reversely connected with the battery, large discharging current can be generated, damage to the battery, an electric energy input circuit connected with the battery in series, a power device in a charging circuit and the like can be caused, and personnel injury can be caused.

Disclosure of Invention

Based on the problems existing above and the defects of the prior art, the application provides an anti-reverse connection circuit and an energy storage power supply, and by adopting the anti-reverse connection circuit, a solar cell panel, a battery, an electric energy input circuit connected with the battery in series, a power device in a charging circuit and the like can be protected.

In a first aspect, the present application provides an anti-reverse connection circuit, comprising:

a positive input terminal, a negative input terminal, an input circuit and a control unit, wherein,

the positive input end is used for being connected with a first end of the solar cell panel; the negative input end is used for being connected with the second end of the solar cell panel;

the input circuit is connected with the anode input end through a first input end of the input circuit; the input circuit is connected with the negative input end through a second input end of the input circuit; the input circuit is connected with the control unit through a third control end and a fourth control end of the input circuit; the first output end of the input circuit is connected with the first input end of the charging circuit, and the second output end of the input circuit is connected with the second input end of the charging circuit;

the input circuit is to: when the input circuit is conducted, the electric energy obtained from the solar panel is processed, the processed electric energy is transmitted to the charging circuit, and the charging circuit is combined to charge the battery; the control unit is used for: when the solar panel is in positive connection, the input circuit is controlled to be conducted, and when the solar panel is in reverse connection, the input circuit is controlled to be disconnected, so that the input circuit, the charging circuit and the battery are protected; the electric energy is obtained by converting solar energy through the solar panel;

wherein the input circuit comprises: the device comprises a first capacitor, a second capacitor, a pre-charging resistor, a first MOS (metal oxide semiconductor) tube and a second MOS tube; the capacity of the first capacitor is smaller than that of the second capacitor; the first capacitor includes: a plurality of electrolytic capacitors; the second capacitance includes: a plurality of electrolytic capacitors; the first MOS transistor comprises: MOS tube with body diode; the second MOS transistor comprises: MOS tube with body diode;

the input circuit is specifically configured to:

alternating current components in electric energy obtained from the solar panel are filtered through the first capacitor and the second capacitor, and when the first capacitor and the second capacitor are pre-charged by the solar panel, the pre-charging resistor reduces the current in the input circuit so as to protect the solar panel; under the condition that the voltage for charging the battery by the charging circuit is smaller than a voltage threshold value, the battery is charged through the first capacitor, the second capacitor and the charging circuit;

the control unit includes: a first control unit and a second control unit;

when the solar cell panel is positively connected and the voltage input by the solar cell panel between the positive input end and the negative input end is detected to be within a preset range, the control unit is specifically configured to:

the first control unit controls the grid voltage output to the first MOS tube to enable the voltage between the grid and the source of the first MOS tube to meet the conduction condition of the first MOS tube so as to control the conduction of the first MOS tube, and the second control unit controls the grid voltage output to the second MOS tube to enable the voltage between the grid and the source of the second MOS tube to meet the conduction condition of the second MOS tube so as to control the conduction of the second MOS tube so as to enable the input circuit comprising the first MOS tube and the second MOS tube to be conducted;

when the solar panels are reversely connected, the control unit is specifically configured to:

and controlling the voltage output to the grid electrode of the second MOS tube through the second control unit, so that the voltage between the grid electrode and the source electrode of the second MOS tube does not meet the conduction condition of the second MOS tube, the second MOS tube is cut off, and the input circuit is disconnected.

In a second aspect, the present application provides an energy storage power supply comprising:

the solar cell comprises an anti-reverse connection circuit, a solar cell panel, a charging circuit, a battery, a boosting unit, a voltage reduction unit, a first inverter, a second inverter, a first current output interface, a second current output interface, a third current output interface and a fourth current output interface, wherein the anti-reverse connection circuit is connected with the solar cell panel; wherein,

the first end of the solar cell panel is connected with the positive input end; the second end of the solar panel is connected with the negative electrode input end; the solar panel is used for converting the acquired solar energy into electric energy;

the first output end of the charging circuit is connected with the first input end of the battery; the second output end of the charging circuit is connected with the second input end of the battery;

the first output end of the battery is connected with the first current output interface through the boosting unit; the first output end of the battery is also connected with the third output interface through the boosting unit and the first inverter;

the second output end of the battery is connected with the second current output interface through the voltage reduction unit; the second output end of the battery is also connected with the fourth current output interface through the voltage reduction unit and the second inverter;

the battery is used for storing the electric energy input to the battery by the charging circuit;

the boosting unit is used for boosting the direct current output by the battery to obtain first boosted direct current; the voltage of the first boosted direct current is higher than that of the direct current output by the battery; the first current output interface is used for outputting the first boosted direct current output by the boosting unit to first electric equipment; the first boosted direct current is direct current;

the first inverter is used for converting the first boosted direct current into a first boosted alternating current; the first boosting alternating current is alternating current; the third current output interface is used for outputting the first boosted alternating current to second electrical equipment;

the voltage reduction unit is used for reducing the direct current output by the battery to obtain a first reduced direct current; the first current output interface is used for outputting the first step-down direct current output by the step-down unit to a third electric device; the voltage of the first step-down direct current is lower than that of the direct current output by the battery;

the second inverter is used for converting the first step-down direct current into first step-down alternating current; the first step-down alternating current is alternating current; the fourth current output interface is used for outputting the first step-down alternating current to fourth electric equipment.

The application discloses prevent reverse connection circuit and energy storage power supply, wherein, prevent reverse connection circuit includes: the input circuit comprises a positive input end, a negative input end, an input circuit and a control unit; the positive input end is used for being connected with the first end of the solar cell panel; the negative input end is used for being connected with the second end of the solar cell panel; the input circuit is connected with the anode input end through the first input end of the input circuit; the input circuit is connected with the negative input end through the second input end of the input circuit; the input circuit is connected with the control unit through a third control end and a fourth control end of the input circuit; the first output terminal of input circuit is connected with charging circuit's first input, and input circuit's second output is connected with charging circuit's second input, and input circuit is used for: when the input circuit is conducted, the electric energy obtained from the solar panel is processed and then transmitted to the charging circuit to charge the battery; the control unit is used for: when the solar cell panel is in positive connection, the input circuit is controlled to be conducted, and when the solar cell panel is in negative connection, the input circuit is controlled to be disconnected, so that the battery, the input circuit connected with the battery in series and the charging circuit are protected. By adopting the anti-reverse-connection circuit, the input circuit, the charging circuit and the power device in the battery can be protected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an anti-reverse connection circuit provided in the present application;

FIG. 2 is a schematic diagram of another anti-reverse connection circuit provided in the present application;

fig. 3 is a schematic structural diagram of an energy storage power supply provided in the present application.

Detailed Description

The technical solutions in the present application will be described clearly and completely with reference to the drawings in the present application, and it should be apparent that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

When the electric energy input port (positive input end, negative input end) at energy storage power is connect conversely by solar cell panel, in order to protect each power device who establishes ties with electric energy input port, this application provides a prevent reverse connection circuit and energy storage power, wherein, solar cell panel is used for charging for energy storage power.

Referring to fig. 1, which is a schematic structural diagram of a reverse connection prevention circuit provided in the present application, as shown in fig. 1, the reverse connection prevention circuit 10 may include, but is not limited to: input circuit 101, input end 102, control unit 103, wherein, input end 102 includes: a positive input end 1021 and a negative input end 1022, and the control unit 103 includes: a first control unit 1031 and a second control unit 1032;

the positive input end 1021 is used for connecting with a first end of the solar panel; the negative input terminal 1022 is used for connecting with a second terminal of the solar cell panel;

the input circuit 101 includes: the device comprises a first capacitor, a second capacitor, a pre-charging resistor, a first MOS (metal oxide semiconductor) tube and a second MOS tube; the capacity of the first capacitor is smaller than that of the second capacitor; the first capacitor includes: a plurality of electrolytic capacitors; the second capacitor includes: a plurality of electrolytic capacitors; the first MOS transistor comprises: MOS tube with body diode; the second MOS transistor includes: MOS tube with body diode;

the input circuit 101 is connected with the positive input end 1021 through a first input end of the input circuit 101; the input circuit 101 is connected to the negative input terminal 1022 through a second input terminal of the input circuit 101; the input circuit 101 is connected with the control unit 103 through a third control terminal and a fourth control terminal of the input circuit 101; a first output end of the input circuit 101 is connected with a first input end of the charging circuit 101, and a second output end of the input circuit 101 is connected with a second input end of the charging circuit 101;

it should be noted that the first end of the solar panel comprises: an MC4 female joint of the solar cell panel; the second end of the solar cell panel includes: MC4 male connector of solar cell panel.

The input circuit 101 is used for: when the input circuit 101 is turned on, the electric energy obtained from the solar panel is processed, and then the processed electric energy is transmitted to the charging circuit and is combined with the charging circuit to charge the battery; the electric energy is obtained by converting solar energy through the solar panel; the electric energy that above-mentioned solar cell panel obtained: the solar energy is obtained by converting the solar energy through the solar panel;

the control unit 103 is configured to: when the solar panel is in positive connection, the input circuit 101 is controlled to be on, and when the solar panel is in reverse connection, the input circuit 101 is controlled to be off, so that the input circuit 101, a charging circuit connected with the input circuit 101 in series and a power device in a battery are protected; in particular, the method comprises the following steps of,

when the first end of the solar cell panel is the positive electrode of the solar cell panel and the second end of the solar cell panel is the negative electrode, the solar cell panel is connected positively, and the control unit 103 can be used for controlling the input circuit 101 to be conducted;

when the first end of the solar cell panel is the negative electrode of the solar cell panel and the second end of the solar cell panel is the positive electrode, the solar cell panel is reversely connected, and the control unit 103 is used for controlling the input circuit 101 to be disconnected.

It should be noted that the solar panel may include, but is not limited to: the solar cell panel is provided with an MC4 male connector and an MC4 female connector, and the solar cell panel is provided with an SAE connector.

It should be noted that the above batteries may include, but are not limited to: 6 and 16 series lithium iron phosphate batteries.

The input circuit 101 includes:

the device comprises a first capacitor, a second capacitor, a pre-charging resistor, a first MOS (metal oxide semiconductor) tube and a second MOS tube; the capacity of the first capacitor is smaller than that of the second capacitor; the first capacitor includes: a plurality of electrolytic capacitors; the second capacitor includes: a plurality of electrolytic capacitors; the first MOS transistor includes: MOS tube with body diode; the second MOS transistor includes: MOS tube with body diode; wherein,

the input circuit 101 is specifically configured to:

alternating current components in electric energy obtained from the solar panel are filtered through the first capacitor and the second capacitor, and when the first capacitor and the second capacitor are pre-charged through the pre-charging resistor, the current in the input circuit 101 is reduced so as to protect the solar panel (for example, the solar panel is prevented from being damaged by large current in the input circuit 101 so as to protect the solar panel); and compensating the ripple current output from the input circuit 101 to the charging circuit through the first capacitor and the second capacitor, or compensating the ripple voltage output from the input circuit 101 to the charging circuit through the first capacitor and the second capacitor.

The first capacitor is connected in series to the first input terminal of the input circuit 101 and the second input terminal of the input circuit 101; the first capacitor can also be used to quickly determine the magnitude of the voltage input to the input circuit 101 by the solar panel. Because, the electric capacity of first electric capacity is less, and first electric capacity can discharge fast and accomplish, through the voltage that detects different moments (the moment that first electric capacity is full of electricity, the moment that the residual capacity of first electric capacity is zero) first electric capacity to confirm the size of the voltage that solar cell panel input circuit 101 fast.

The second capacitor is connected in series with the first output end of the input circuit 101 and the second output end of the input circuit 101;

wherein, the first capacitance can also be: one electrolytic capacitor, and the second capacitor may also be: an electrolytic capacitor.

It should be noted that, when the solar panel is connected positively and it is detected that the voltage inputted from the solar panel between the positive input end 1021 and the negative input end 1022 is within the predetermined range,

the control unit 102 may be specifically configured to:

the gate voltage output to the first MOS transistor is controlled by the first control unit 1031, so that the voltage between the gate of the first MOS transistor and the source of the first MOS transistor satisfies the conduction condition of the first MOS transistor to control the conduction of the first MOS transistor, and the gate voltage output to the second MOS transistor is controlled by the second control unit 1032, so that the voltage between the gate of the second MOS transistor and the source of the second MOS transistor satisfies the conduction condition of the second MOS transistor to control the conduction of the second MOS transistor, so that the input circuit 101 including the first MOS transistor and the second MOS transistor is conducted, and the battery in the energy storage power supply is safely charged by the charging circuit through the input circuit 101.

Optionally, the preset range is as follows: (+ 12V, + 65V); when the solar panels are reversely connected, the control unit 103 is specifically configured to:

the second control unit 1032 controls the gate voltage output to the second MOS transistor, so that the voltage between the gate of the second MOS transistor and the source of the second MOS transistor does not satisfy the conduction condition of the second MOS transistor, the second MOS transistor is turned off, the input circuit 101 is turned off, and the input circuit 101, the charging circuit connected in series with the input circuit 101, and the power device in the battery can be protected.

It should be noted that some components of the input circuit 101 that cannot be connected in reverse are: the electrolytic capacitors such as the first capacitor and the second capacitor, or the first MOS tube and the second MOS tube, etc. can be damaged; or, other components in the energy storage power supply which can not be reversely connected are as follows: some other electrolytic capacitors, or some diodes, or some MOS transistors. Therefore, when the solar panel is reversely connected to the positive input end 1021 and the negative input end 1022 of the reverse connection prevention circuit 10, in order to protect the above components, the control unit 103 may control the second MOS transistor in the input circuit 101 through the second control unit 1032, so that the input circuit 101 is disconnected to protect the power components in the input circuit 101, specifically,

more specifically, the control unit 103 is specifically operable to:

the gate voltage of the second MOS transistor output to the input circuit 101 is controlled by the second control unit 1032, so that the voltage between the gate and the source of the second MOS transistor does not satisfy the conduction condition of the second MOS transistor, which causes the second MOS transistor to be turned off, and further causes the input circuit 101 to be turned off, wherein, on one hand, the input circuit 101, the charging circuit connected in series with the input circuit 101, and the power device which cannot be reversely connected in the battery can be protected by the upper control unit 103;

on the other hand, after the first MOS transistor and the second MOS transistor in the input circuit 101 are turned off, since the resistor R47 having a large resistance exists in the first loop including the first control unit 1031, the positive input terminal RF6, the negative input terminal T2, and the resistor R47 (the resistance of the resistor R47 is 100K ohms), the current in the first loop is small; a resistor R78 and a resistor R102 with large resistance also exist in a second loop including the second control unit 1032, the positive input terminal RF6, the negative input terminal T2, the resistor R78 (where the resistance of the resistor R78 is 10K ohms), and the resistor R102 (where the resistance of the resistor R102 is 10K ohms), and accordingly, the current in the second loop is small; because the currents in the first loop and the second loop are small, the solar cell panel connected with the first loop and the second loop through the large current can be prevented from being impacted or damaged, and the solar cell panel is protected.

It should be noted that, when the solar panel is connected, the operation process of each module in the reverse connection preventing circuit 10 is briefly described below with reference to fig. 1.

Specifically, when the first end of the solar cell panel is the anode of the solar cell panel and the second end of the solar cell panel is the cathode, the solar cell panel is connected positively; firstly, the solar panel is used for pre-charging a first capacitor and a second capacitor in the input circuit 101; then, when the voltage between the positive input end 1021 of the reverse connection preventing circuit 10 and the negative input end 1022 of the reverse connection preventing circuit 10 is detected to be in a preset range through a detection device (such as a single chip microcomputer or other detection modules); finally, the control unit 103 in the reverse connection preventing circuit 10 controls the gate voltage output to the first MOS transistor through the first control unit 1031, so that the voltage between the gate and the source of the first MOS transistor satisfies the conduction condition of the first MOS transistor to control the conduction of the first MOS transistor, and controls the gate voltage output to the second MOS transistor through the second control unit 1032, so that the voltage between the gate and the source of the second MOS transistor satisfies the conduction condition of the second MOS transistor to control the conduction of the second MOS transistor, so that the input circuit 101 including the first MOS transistor and the second MOS transistor is conducted, and then the charging circuit connected to the input circuit 101 is combined to charge the battery connected in series with the input circuit 101.

The following briefly describes the operation process of each module in the reverse connection preventing circuit 10 with reference to fig. 1 when the solar panel is reversely connected.

Specifically, when the first end of the solar cell panel is the cathode of the solar cell panel and the second end of the solar cell panel is the anode, the solar cell panel is reversely connected; to protect the solar panel and the input circuit 101, the control unit 103 may be specifically configured to: the second control unit 1032 controls the gate voltage output to the second MOS transistor, so that the voltage between the gate and the source of the second MOS transistor does not satisfy the conduction condition of the second MOS transistor, the second MOS transistor is turned off, and the input circuit 101 is turned off, thereby protecting the power devices, such as the first capacitor, the second capacitor, the first MOS transistor, and the first MOS transistor, which cannot be reversely connected in the input circuit 101, and protecting the charging circuit connected in series with the input circuit 101 and the power devices, which cannot be reversely connected in the battery.

Various situations of the positive input end 1021 and the negative input end 1022 in the solar panel positive connection reverse connection prevention circuit 10 are described below with reference to fig. 1.

Case 1:

when the solar cell panel is connected in the positive direction,

the first end of the solar cell panel is the anode of the solar cell panel, and the second end of the solar cell panel is the cathode of the solar cell panel; wherein,

the positive input end 1021 is directly connected with the positive electrode of the solar cell panel, and the negative input end 1022 is directly connected with the negative electrode of the solar cell panel; or,

the positive input end 1021 is connected with the positive pole of the solar cell panel through a charging patch cord, and the negative input end 1022 is connected with the negative pole of the solar cell panel through a charging patch cord.

Case 2:

when the solar cell panel is in the positive connection,

the first end of the solar cell panel specifically comprises an MC4 female joint of the solar cell panel; the second end of the solar panel specifically comprises an MC4 male connector of the solar panel;

that is, the MC4 male joint of the solar panel is the negative electrode of the solar panel, and the MC4 female joint of the solar panel is the positive electrode of the solar panel;

the positive input end 1021 specifically includes: an MC4 male connector integrated on the reverse-connection preventing circuit 10; the negative input terminal 1022 specifically includes: an MC4 female connector integrated on the reverse-connection preventing circuit 10;

at this time, the MC4 male connector integrated on the reverse connection preventing circuit 10 is connected to the MC4 female connector on the solar cell panel, and the MC4 female connector integrated on the reverse connection preventing circuit 10 is connected to the MC4 male connector on the solar cell panel.

Case 3:

when the solar cell panel is connected in the positive direction,

the first end of the solar panel specifically comprises an MC4 female joint of the solar panel; the second end of the solar panel is specifically an MC4 male connector of the solar panel;

that is, the MC4 female joint of the solar panel is the anode of the solar panel, and the MC4 male joint of the solar panel is the cathode of the solar panel;

the positive input end 1021 specifically includes: the jack center of the DC7909 socket; the negative input terminal 1022 specifically includes: the socket edge of the DC7909 socket;

the patch cord that charges specifically includes: the charging adapter comprises an MC4 male connector integrated on a charging adapter wire, an MC4 female connector integrated on the charging adapter wire, a round hole of a DC7909 plug and an outer ring of the DC7909 plug; the MC4 male connector integrated on the charging patch cord is a positive electrode, the MC4 female connector integrated on the charging patch cord is a negative electrode, the round hole of the DC7909 plug on the charging patch cord is a negative electrode, and the outer ring of the DC7909 plug on the charging patch cord is a positive electrode;

at the moment, an MC4 female connector of the solar panel is connected with an MC4 male connector integrated on the charging patch cord, an MC4 male connector of the solar panel is connected with an MC4 female connector integrated on the charging patch cord, and a round hole of a DC7909 plug on the charging patch cord is connected with the center of an inserting port of a DC7909 socket; the outer ring of the DC7909 plug of the charging patch cord is connected with the jack edge of the DC7909 socket.

Various situations of the positive input end 1021 and the negative input end 1022 in the reverse connection prevention circuit 10 of the solar cell panel are described in connection with fig. 1.

Case 4:

when the solar cell panels are connected in reverse,

the first end of the solar cell panel is the negative electrode of the solar cell panel, and the second end of the solar cell panel is the positive electrode of the solar cell panel;

the positive input end 1021 is directly connected with the negative electrode of the solar cell panel, and the negative input end 1022 is directly connected with the positive electrode of the solar cell panel; or,

the positive input end 1021 is connected with the negative electrode of the solar cell panel through a charging patch cord, and the negative input end 1022 is connected with the positive electrode of the solar cell panel through the charging patch cord.

Case 5:

when the solar cell panels are connected in reverse,

the first end of solar cell panel specifically includes: an MC4 female joint of the solar cell panel; the second end of solar cell panel specifically includes: an MC4 male connector of the solar panel;

that is, the MC4 male joint of the solar panel is the anode of the solar panel, and the MC4 female joint of the solar panel is the cathode of the solar panel;

Case 6:

when the solar panels are connected in a reverse direction,

the positive input end 1021 specifically includes: the jack center of the DC7909 socket; the negative input terminal 1022 specifically includes: the outlet side of the DC7909 socket;

the patch cord that charges specifically includes: the charging adapter comprises an MC4 male connector integrated on the charging adapter wire, an MC4 female connector integrated on the charging adapter wire, a round hole of a DC7909 plug and an outer ring of the DC7909 plug; the MC4 male connector integrated on the charging patch cord is a positive electrode, the MC4 female connector integrated on the charging patch cord is a negative electrode, the round hole of the DC7909 plug on the charging patch cord is a negative electrode, and the outer ring of the DC7909 plug on the charging patch cord is a positive electrode;

at the moment, the MC4 female joint of the solar panel is connected with the MC4 male joint integrated on the charging patch cord, the MC4 male joint of the solar panel is connected with the MC4 female joint integrated on the charging patch cord, and the round hole of the DC7909 plug on the charging patch cord is connected with the socket center of the DC7909 socket; the outer ring of the DC7909 plug of the charging patch cord is connected with the socket edge of the DC7909 socket.

Case 7:

when the solar cell panels are connected in reverse,

the first end of solar cell panel specifically includes: an MC4 male connector of the solar panel; the second end of solar cell panel specifically includes: an MC4 female joint of the solar cell panel;

the patch cord that charges specifically includes: the charging adapter comprises an MC4 male connector integrated on the charging adapter wire, an MC4 female connector integrated on the charging adapter wire, a round hole of a DC7909 plug and an outer ring of the DC7909 plug; the MC4 male connector integrated on the charging patch cord is a negative electrode, the MC4 female connector integrated on the charging patch cord is a positive electrode, the circular hole of the DC7909 plug on the charging patch cord is a negative electrode, and the outer ring of the DC7909 plug on the charging patch cord is a positive electrode;

at the moment, an MC4 female connector of the solar panel is connected with an MC4 male connector integrated on the charging patch cord, the MC4 male connector of the solar panel is connected with an MC4 female connector integrated on the charging patch cord, and a round hole of a DC7909 plug on the charging patch cord is connected with the center of an inserting opening of the DC7909 socket; the outer ring of the DC7909 plug of the charging patch cord is connected with the socket edge of the DC7909 socket.

Fig. 2 schematically shows a structural schematic diagram of another anti-reverse connection circuit, and as shown in fig. 2, the anti-reverse connection circuit 10 includes: an input circuit 101, a control unit 103, an input terminal 102; the input terminal 102 may include, but is not limited to: a positive input end 1021 and a negative input end 1022, and the control unit 103 includes: a first control unit 1031 and a second control unit 1032; wherein,

the positive input end 1021 and the negative input end 1022 may be connected to an MC4 male connector and an MC4 female connector on the solar panel, or the positive input end 1021 and the negative input end 1022 may be further connected to a charging patch cord configured with the MC4 male connector, the MC4 female connector, and a DC7909 plug, or the positive input end 1021 and the negative input end 1022 may be further connected to a charging patch cord configured with the MC4 male connector, the MC4 female connector, and the XT60 female connector.

The positive input 1021 in the embodiment of the present application may include but is not limited to: RF1, RF2, RF6.

The negative input terminal 1022 in the embodiment of the present application may include, but is not limited to: t2, T3 and T4.

Input circuit 101, may include, but is not limited to:

the device comprises a first capacitor, a second capacitor, a pre-charging resistor, a first MOS (metal oxide semiconductor) tube and a second MOS tube; wherein, the first capacitance may include but is not limited to: a capacitor C43, a capacitor C159, a capacitor C160, and a capacitor C178; the capacitor C43, the capacitor C159, the capacitor C160 and the capacitor C178 are electrolytic capacitors respectively; the capacitance of the capacitor C43 is 100nF, the capacitance of the capacitor C159 is 100nF, the capacitance of the capacitor C160 is 100nF, and the capacitance of the capacitor C178 is 100nF.

The second capacitance may include, but is not limited to: a capacitor C11, a capacitor C13, a capacitor C14, a capacitor C48, a capacitor C52 and a capacitor C56; the capacitor C11, the capacitor C13, the capacitor C14, the capacitor C48, the capacitor C52 and the capacitor C56 are electrolytic capacitors respectively; the capacity of the capacitor C11 is 120uF, and the voltage of the capacitor C11 is 80V; the capacity of the capacitor C13 is 120uF, and the voltage of the capacitor C13 is 80V; the capacity of the capacitor C14 is 120uF, and the voltage of the capacitor C14 is 80V; the capacity of the capacitor C48 is 120uF, and the voltage of the capacitor C48 is 80V; the capacity of the capacitor C52 is 120uF, and the voltage of the capacitor C52 is 80V; the capacitance of the capacitor C56 is 120uF, and the voltage of the capacitor C56 is 80V.

The pre-charge resistor may include, but is not limited to: r47, wherein the resistance of R47 may be in the range of 100K ohms;

it should be noted that the first capacitor including the capacitor C43, the capacitor C159, the capacitor C160, and the capacitor C178, and the second capacitor including the capacitor C11, the capacitor C13, the capacitor C14, the capacitor C48, the capacitor C52, and the capacitor C56 are used together to filter the ac component in the electric energy obtained from the solar panel by absorbing and releasing charges, the electric energy is obtained by converting solar energy through the solar panel; as can be seen from the above, the capacitance of the first capacitor including the capacitor C43, the capacitor C159, the capacitor C160, and the capacitor C178 is smaller than the capacitance of the second capacitor including the capacitor C11, the capacitor C13, the capacitor C14, the capacitor C48, the capacitor C52, and the capacitor C56.

It should be noted that the first control unit 1031 may include, but is not limited to:

the LED driving circuit comprises a first MOS tube of a self-contained body diode, a triode 1, a controller PV1-ON end and a light emitting diode U25; wherein,

the first MOS transistor of the self-contained body diode can comprise: MOS tube Q5 of the body diode of oneself;

the transistor 1 may include: a triode Q6 and a triode Q17;

the controller PV1-ON terminal may include, but is not limited to: a single chip microcomputer PV1-ON end or other control equipment PV1-ON ends;

it should be noted that the second control unit 1032 may include, but is not limited to:

a second MOS tube of a body diode, a triode 2, +12V power input end and a controller PV1-DRV end;

the second MOS transistor of the self-contained body diode may include: MOS tube Q3 of the body diode and MOS tube Q8 of the body diode;

the transistor 2 may include: a triode Q39;

the controller PV1-DRV terminal may include, but is not limited to: a single chip microcomputer PV1-DRV end or other control equipment PV1-DRV ends;

it should be noted that the second control unit 1032 in the embodiment of the present application can be used in the following two aspects.

In a first aspect, the second control unit 1032 is operable to:

when the solar panel is connected positively (for example, the anode of the solar panel is connected to the anode input 1021 of the reverse connection preventing circuit 10, and the cathode of the solar panel is connected to the cathode input 1022 of the reverse connection preventing circuit 10), when the detection device detects that the voltage applied to the controllers PV1-DRV is within the preset range (for example, + 12V- + 65V), the transistor Q39 is turned off, and at this time, the loop including the transistors Q39, the power input of +12V and the ground is disconnected, so that the gate voltage of the MOS transistor Q3 of the self-body diode is high voltage (close to + 12V), and at this time, the source of the MOS transistor Q3 of the self-body diode is grounded, so that the VGS voltage between the gate and the source is greater than the conducting voltage of the MOS transistor Q3, and the MOS transistor Q3 of the self-body diode is conducted. It should be noted that, the MOS transistor Q3 with body diode is arranged at a position close to the negative input terminal 1022, when the MOS transistor Q3 with body diode is turned on, the gate voltage (only the power input terminal of +12V is needed) that needs to be provided to the MOS transistor Q3 is higher than the source voltage (0V) of the MOS transistor Q3, and at this time, the MOS transistor Q3 with body diode can be turned on;

if the MOS transistor Q3 with the body diode is arranged at a position close to the positive input end 1021, when the MOS transistor Q3 with the body diode is conducted, the grid voltage required to be provided for the MOS transistor Q3 is higher than the source voltage (such as the voltage of the positive input end 1021) of the MOS transistor Q3, namely a larger grid voltage is required;

therefore, the MOS transistor Q3 with its body diode is arranged close to the negative input terminal 1022, which requires less cost (only +12V power input terminal is needed).

In a second aspect, the second control unit 1032 is operable to:

when the solar panel is reversely connected (for example, the positive electrode of the solar panel is connected with the negative input end 1022 of the reverse connection preventing circuit 10, and the negative electrode of the solar panel is connected with the positive input end 1021 of the reverse connection preventing circuit 10), the source voltage of the MOS transistor Q3 is the seventh voltage, wherein the seventh voltage is higher, so that the VGS voltage between the gate of the MOS transistor Q3 and the source of the MOS transistor Q3 is lower than the on voltage of the MOS transistor Q3, so the MOS transistor Q3 with the body diode is cut off, and the input circuit 101 of the MOS transistor Q3 including the body diode is disconnected. The voltage of the grid electrode of the MOS tube Q3 is determined by a PV1-DRV end of a controller, the MOS tube Q3 with a body diode, a triode Q39 and a +12V power supply input end.

In an optional implementation manner, the first control unit 1031 in the embodiment of the present application may be configured to:

when the solar panel is connected positively, and the voltage at the PV1-ON end of the controller sets a first voltage, wherein the first voltage is at a high level ("1"), the light emitting diode U25 is turned ON and emits light, so that the gate voltage applied to the MOS transistor Q5 with the body diode is a high voltage, and since the source of the MOS transistor Q5 with the body diode is grounded, the VGS voltage between the gate of the MOS transistor Q5 and the source of the MOS transistor Q5 is greater than the turn-ON voltage of the MOS transistor Q5, so that the MOS transistor Q5 with the body diode is turned ON;

when the solar panel is connected positively, if the voltage applied to the ON terminal of the controller PV1 is set to a second voltage, wherein the second voltage is a low level ("0"), the light emitting diode U25 is not turned ON and does not emit light, so the transistor Q6 and the transistor Q17 are turned off, so the gate voltage applied to the MOS transistor Q5 of the self-body diode is a low voltage, and if the VGS voltage between the gate of the MOS transistor Q5 and the source of the MOS transistor Q5 is less than the ON voltage of the MOS transistor Q5, the MOS transistor Q5 of the self-body diode is turned off; in addition, if the VGS voltage between the gate of the MOS transistor Q5 and the source of the MOS transistor Q3 is greater than the turn-on voltage of the MOS transistor Q5, the MOS transistor Q5 with the self-body diode is turned on at this moment.

It should be noted that the first control unit 1031 in the embodiment of the present application may be configured to:

when the solar panel is reversely connected (for example, the positive pole of the solar panel is connected with the negative pole input end 1022 of the reverse connection preventing circuit 10, and the negative pole of the solar panel is connected with the positive pole input end 1021 of the reverse connection preventing circuit 10), the source voltage applied to the MOS tube Q5 with the body diode is a third voltage, and the third voltage is a high voltage;

optionally, if the voltage at the PV1-ON terminal of the controller is set to the fourth voltage, the fourth voltage is a high voltage ("1"), the light emitting diode U25 is turned ON and emits light, and therefore the transistor Q6 and the transistor Q17 are shorted, so that the gate voltage applied to the MOS transistor Q5 with the body diode is the third voltage, but since the source voltage applied to the MOS transistor Q5 with the body diode is the fourth voltage, at this time, if the VGS voltage between the gate of the MOS transistor Q5 and the source of the MOS transistor Q3 is smaller than the ON voltage of the MOS transistor Q3, the MOS transistor Q5 with the body diode is turned off; therefore, the input circuit 101 of the MOS transistor Q5 including its own body diode is turned off. The voltage of the grid electrode of the MOS tube Q5 is determined by a controller PV1-ON end, a triode Q6, a triode Q17 and a light-emitting diode U25;

optionally, when the solar panel is connected in reverse, the source voltage applied to the MOS transistor Q5 with body diode is the third voltage, the voltage at the ON terminal of the controller PV1 is set to the fifth voltage, and when the fifth voltage is a low voltage ("0"), the light emitting diode U25 is not turned ON and does not emit light, so the transistor Q6 and the transistor Q17 are turned off, so the gate voltage applied to the MOS transistor Q5 with body diode is a low voltage, and if the VGS voltage between the gate of the MOS transistor Q5 and the source of the MOS transistor Q3 is smaller than the ON voltage of the MOS transistor Q3, the MOS transistor Q5 with body diode is turned off, so the input circuit 101 of the MOS transistor Q5 including body diode is turned off; in addition, if the VGS voltage between the gate of the MOS transistor Q5 and the source of the MOS transistor Q3 is greater than the turn-on voltage of the MOS transistor Q3, the MOS transistor Q5 with the body diode is turned on.

The above-mentioned energy storage power supply is described in detail with reference to fig. 3, fig. 3 is a schematic structural diagram of an energy storage power supply provided by the present application, as shown in fig. 3,

the stored energy power source 80 may include, but is not limited to: in fig. 1 or 2, the reverse connection preventing circuit 10, the solar panel 70, the charging circuit 30, the battery 20, the voltage boosting unit 501, the voltage reducing unit 502, the first inverter 401, the second inverter 402, the first current output interface 601, the second current output interface 602, the third current output interface 603, and the fourth current output interface 604; wherein,

a first end of the solar panel 70 is connected with the positive input end 1021 in the reverse connection preventing circuit 10; the second end of the solar panel 70 is connected to the negative input end 1022 of the reverse connection preventing circuit 10; the solar panel 70 is used for converting the acquired solar energy into electric energy; the solar panel 70 may include, but is not limited to: a single-sided solar panel, a double-sided PERC (Passivated emitter and Rear Cell) solar panel;

the solar panel 70 may be specifically configured to:

when sunlight irradiates a P-N junction on the solar cell panel 70, electrons in the semiconductor release electrons due to the acquired light energy, accordingly, electron-hole pairs are generated, and the electrons are driven to the N-type area and the holes are driven to the P-type area under the action of a barrier electric field, so that the N-type area has surplus electrons and the P-type area has surplus holes, and current is formed; thus, a photogenerated electric field is formed in the vicinity of the P-N junction in a direction opposite to that of the barrier electric field, thereby generating electric energy. A first output terminal of the charging circuit 30 is connected to a first input terminal of the battery 20; a second output terminal of the charging circuit 30 is connected to a second input terminal of the battery 20; alternatively, the battery 20 may include, but is not limited to: 6 parallel 16 series lithium iron phosphate battery packs, or X parallel Y series lithium iron phosphate battery packs, wherein X and Y are natural numbers respectively;

a first output end of the battery 20 is connected to the first current output interface 601 through the voltage boosting unit 501; the first output end of the battery 20 is further connected to the third output interface 603 through the voltage boosting unit 501 and the first inverter 401; the first inverter 401 may be: an inverter for converting the direct current into an alternating current; the second inverter 402 may be: an inverter for converting direct current into alternating current;

a second output terminal of the battery 20 may be connected to the second current output interface 602 through the voltage reduction unit 502; the second output end of the battery 20 is further connected to the fourth current output interface 604 through the voltage reduction unit 502 and the second inverter 402;

the battery 20 may be used to store electrical energy input to the battery 20 by the charging circuit 30; the battery 20 may also be used to output stored electrical energy to an inverter, or to output stored electrical energy to other devices through an output interface;

the boosting unit 501 may be configured to boost the dc power output by the battery 20 to obtain a first boosted dc power; wherein, the voltage of the first boosted dc is higher than the voltage of the dc output from the battery 20; the first current output interface 601 is configured to output the first boosted direct current output by the voltage boosting unit 501 to the first electrical device; the first boosting direct current is direct current;

the first inverter 401 may be configured to convert the first boosted direct current into a first boosted alternating current; the first boosting alternating current is alternating current; the third current output interface 603 can be used for outputting the first boosted alternating current to a second electrical device (such as a microwave oven and an induction cooker);

the voltage reducing unit 502 may be configured to reduce the dc output by the battery 20 to obtain a first reduced dc; the first current output interface 601 may be configured to output the first step-down dc power output by the step-down unit 502 to a third electrical device (e.g., a smart phone or a mobile terminal); the voltage of the first step-down direct current is lower than the voltage of the direct current output by the battery 20;

the second inverter 402 may be used to convert the first step-down direct current into a first step-down alternating current; wherein, the first step-down alternating current is alternating current; the fourth current output interface 604 may be used to output the first step-down ac power to a fourth electrical device.

It should be noted that the first current output interface 601 may include, but is not limited to, the following: the system comprises a USB interface, a Type-C interface, a lightning interface, a Micro USB interface, a 30-pin charging interface and a Type-A interface;

the second current output interface 602 may include, but is not limited to, the following: the system comprises a USB interface, a Type-C interface, a lightning interface, a Micro USB interface, a 30-pin charging interface and a Type-A interface;

the third current output interface 603 may include, but is not limited to, the following: AC power supply socket (such as three-port plug and two-port plug);

the fourth current output interface 604 may include, but is not limited to, the following: AC power supply socket (such as three-port plug and two-port plug);

it should be noted that the stored energy power source 80 may include, but is not limited to: in addition to the anti-reverse connection circuit 10, the charging circuit 30, the battery 20, the voltage boosting unit 501, the voltage reducing unit 502, the first inverter 401, the second inverter 402, the first current output interface 601, the second current output interface 602, the third current output interface 603, and the fourth current output interface 604 in fig. 1 or fig. 2, any one or more of the following may be included: display module, communication module, GPS module, anderson port, cigar lighter interface, navigation plug and MPPT (Maximum Power Point Tracking) controller.

The display module may be configured to display a state of charge (SOC) of the energy storage power supply 80, that is, a remaining capacity of the battery, where SOC =0 may indicate that the battery is completely discharged, and SOC =1 may indicate that the battery is completely charged.

A display module further operable to: the discharge mode (e.g., alternating Current (AC) discharge mode or Direct Current (DC) discharge mode) of the battery 20 in the energy storage power source 80 is shown.

The display module is further operable to: and when the energy storage power supply 80 is abnormal, displaying the abnormal information of the energy storage power supply 80. In particular, the method comprises the following steps of,

when the temperature of the battery 20 of the energy storage power supply 80 exceeds a first threshold value or the temperature of the battery 20 of the energy storage power supply 80 exceeds a second threshold value, displaying abnormal temperature information of the battery 20 (such as text information of abnormal temperature of the battery 20 or a temperature alarm symbol of the battery 20); when the charging current of the battery 20 in the energy storage power supply 80 exceeds a third threshold value or the discharging current of the battery 20 in the energy storage power supply 80 exceeds a fourth threshold value, displaying the charging and discharging abnormal information of the battery 20 (such as the character information of the charging and discharging abnormality of the battery 20, an overcurrent alarm symbol and an undercurrent alarm symbol); when the charging voltage of a single battery in the energy storage power supply 80 exceeds a fifth threshold, or the charging voltage of the single battery in the energy storage power supply 80 is smaller than a sixth threshold, displaying the charging and discharging abnormal information of the battery 20; wherein the first threshold is smaller than the second threshold; the fifth threshold is greater than the sixth threshold; the third threshold value is smaller than a fourth threshold value;

alternatively, the first threshold may be 60 degrees celsius, the second threshold may be-10 degrees celsius, the third threshold may be 40 amps (a), the fourth threshold may be 90 amps, the fifth threshold may be 3.65V, and the sixth threshold may be 2.5V.

A communication module operable to: transmitting the call-for-help request signal to the terminal communication device, and receiving a response signal and the like sent by the terminal communication device in response to receiving the call-for-help request signal (that is, in response to receiving the call-for-help request signal, sending the response signal sent by the terminal communication device to the communication module); for example: emergency dialing 110/119 or 120, etc.

A GPS module operable to:

simultaneously receiving a first GPS signal sent by a first GPS satellite, a second GPS signal sent by a second GPS satellite and a third GPS signal sent by a third GPS satellite, carrying out difference processing on a timestamp acquired from the first GPS signal and a time point on a GPS module when the GPS module receives the first GPS signal so as to obtain a first time difference, and taking the propagation speed of light as the transmission speed of the first GPS signal so as to obtain a first distance between the GPS module and the first GPS satellite; performing difference processing on a timestamp acquired from the second GPS signal and a time point on the GPS module when the GPS module receives the second GPS signal to acquire a second time difference, and acquiring a second distance between the GPS module and the first GPS satellite by taking the propagation speed of light as the transmission speed of the second GPS signal; and performing difference processing on a timestamp acquired from the third GPS signal and a time point on the GPS module when the GPS module receives the third GPS signal to obtain a third time difference, taking the propagation speed of light as the transmission speed of the third GPS signal to obtain a third distance between the GPS module and a third GPS satellite, taking the first GPS satellite as the center of a circle, taking the first distance as the radius to obtain a first sphere, taking the second GPS satellite as the center of a circle, taking the second distance as the radius to obtain a second sphere, taking the third GPS satellite as the center of a circle, taking the third distance as the radius to obtain a third sphere, then obtaining an intersection point of the first sphere, the second sphere and the third sphere, and taking the position information where the intersection point is located as the position information of the energy storage power supply comprising the GPS module.

An Anderson port operable to: charging a vehicle (e.g., an electric motorcycle) equipped with an anderson port;

cigar lighter interface can be used to: charging other devices (e.g., cigarette lighters); after the USB interface is connected with the first end of the cigarette lighter, mobile equipment such as a mobile phone and the like are charged through the USB interface at the second end of the cigarette lighter; the first and second are used only for distinguishing different ends;

an aviation plug, operable to:

one or N battery packs are connected in parallel, so that the energy storage power supply 80 is connected with one or N battery packs in parallel, and the electric energy storage capacity of the energy storage power supply 80 is improved; n is a natural number greater than or equal to 2. For example: if the capacity of the energy storage power supply 80 is 36Ah, the energy storage power supply 80 is connected with a battery pack with the capacity of 36Ah in parallel, and the capacity of the energy storage power supply 80 is doubled; or,

one or M energy storage devices are connected in series to increase the output voltage of the energy storage power supply 80; the energy storage device is an energy storage power supply which can store the electric energy and output the electric energy; m is a natural number greater than or equal to 2. For example: the output voltage of the energy storage power supply 80 is 110V, and after the energy storage power supply 80 is connected with an energy storage device with the output voltage of 110V in series through an aviation plug, the voltage of 220V can be output, so that the energy storage power supply 80 can be suitable for scenes with rated voltages required by different loads.

Wherein, the MPPT controller can be used to:

monitoring and acquiring the power generation voltage and the power generation current of the solar cell panel 70 in real time, tracking a preset voltage and a preset current, acquiring preset power according to the preset voltage and the preset current, and charging the battery 20 according to the preset power; the preset voltage is one of a plurality of generated voltages acquired by the MPPT controller at the current moment; the preset current is one of a plurality of generated currents acquired by the MPPT controller at the current moment; the preset power is a maximum power among a plurality of powers obtained by the MPPT controller at the current time.

It should be noted that the energy storage power supply 80 is widely applied to the fields of environmental protection, communication, electric power, travel, household energy storage, and the like. The traditional way that the user acquires energy is changed, clean renewable energy is provided for tens of thousands of users, the problem of outdoor power utilization is solved, and convenience is brought to the work and life of the users.

It should be noted that the first, second, third and fourth elements in this application are only used for distinguishing different terminals, different components or different circuits, and should not be construed as limiting the present application.

It should be noted that specific functions and detailed descriptions of each component, unit or circuit module in the energy storage power supply 80 may refer to the embodiment in fig. 1 and the embodiment in fig. 2, and are not described in detail here.

It should be noted that fig. 1-3 are merely illustrative of embodiments of the present application and should not be construed as limiting the scope of the present application.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described devices, systems and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device and method may be implemented in other ways. For example, the components and steps of the various examples are described. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The above-described embodiments of the apparatus and device are merely illustrative, for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices, apparatuses or units, and may also be an electrical, mechanical or other form of connection.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a memory and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An anti-reverse connection circuit, comprising:

the positive input end is used for being connected with a first end of the solar cell panel; the negative input end is used for being connected with the second end of the solar cell panel; the input circuit is connected with the anode input end through a first input end of the input circuit; the input circuit is connected with the negative input end through a second input end of the input circuit; the input circuit is connected with the control unit through a third control end and a fourth control end of the input circuit; the first output end of the input circuit is connected with the first input end of the charging circuit, and the second output end of the input circuit is connected with the second input end of the charging circuit;

the input circuit is configured to: when the input circuit is conducted, the electric energy obtained from the solar panel is processed, the processed electric energy is transmitted to the charging circuit, and the charging circuit is combined to charge a battery; the control unit is used for: when the solar panel is in positive connection, the input circuit is controlled to be conducted, and when the solar panel is in reverse connection, the input circuit is controlled to be disconnected so as to protect the input circuit, the charging circuit and the battery; the electric energy is obtained by converting solar energy through the solar panel;

wherein the input circuit comprises: the device comprises a first capacitor, a second capacitor, a pre-charging resistor, a first MOS (metal oxide semiconductor) tube and a second MOS tube; the capacity of the first capacitor is smaller than that of the second capacitor; the first capacitor includes: a plurality of electrolytic capacitors; the second capacitance includes: a plurality of electrolytic capacitors; the first MOS transistor includes: MOS tube with body diode; the second MOS transistor comprises: MOS tube with body diode;

the input circuit is specifically configured to:

alternating current components in electric energy obtained from the solar cell panel are filtered through the first capacitor and the second capacitor, and when the first capacitor and the second capacitor are pre-charged by the solar cell panel through the pre-charging resistor, the current in the input circuit is reduced so as to protect the solar cell panel; under the condition that the voltage for charging the battery by the charging circuit is smaller than a voltage threshold value, the battery is charged through the first capacitor, the second capacitor and the charging circuit;

the control unit includes: a first control unit and a second control unit;

the first control unit controls the grid voltage output to the first MOS tube to enable the voltage between the grid electrode and the source electrode of the first MOS tube to meet the conduction condition of the first MOS tube so as to control the conduction of the first MOS tube, and the second control unit controls the grid voltage output to the second MOS tube to enable the voltage between the grid electrode and the source electrode of the second MOS tube to meet the conduction condition of the second MOS tube so as to control the conduction of the second MOS tube so as to enable the input circuit comprising the first MOS tube and the second MOS tube to be conducted;

2. Anti-reverse-connection circuit according to claim 1,

when the solar panel is connected in the positive direction,

the first end of the solar panel is the anode of the solar panel, and the second end of the solar panel is the cathode of the solar panel; wherein,

the positive input end is directly connected with the positive electrode of the solar cell panel, and the negative input end is directly connected with the negative electrode of the solar cell panel; or,

the positive input end is connected with the positive pole of the solar cell panel through a charging patch cord, and the negative input end is connected with the negative pole of the solar cell panel through the charging patch cord.

3. Anti-reverse-connection circuit according to claim 2,

the first end of the solar panel specifically comprises an MC4 female joint of the solar panel; the second end of the solar panel specifically comprises an MC4 male connector of the solar panel;

the positive electrode input end specifically comprises: an MC4 male connector integrated on the reverse-connection preventing circuit; the negative electrode input end specifically comprises: an MC4 female connector integrated on the reverse-connection preventing circuit;

the MC4 male connector integrated on the reverse connection preventing circuit is connected with the MC4 female connector on the solar panel, and meanwhile, the MC4 female connector integrated on the reverse connection preventing circuit is connected with the MC4 male connector on the solar panel.

4. The reverse connection prevention circuit according to claim 2,

the positive input end specifically comprises: the jack center of the DC7909 socket; the negative input end specifically comprises: the outlet edge of the DC7909 socket;

the charging patch cord specifically includes: the charging patch cord comprises an MC4 male connector integrated on the charging patch cord, an MC4 female connector integrated on the charging patch cord, a round hole of a DC7909 plug and an outer ring of the DC7909 plug; the MC4 male connector integrated on the charging patch cord is a positive electrode, the MC4 female connector integrated on the charging patch cord is a negative electrode, the round hole of the DC7909 plug on the charging patch cord is a negative electrode, and the outer ring of the DC7909 plug on the charging patch cord is a positive electrode;

the MC4 female joint of the solar panel is connected with the MC4 male joint integrated on the charging patch cord, the MC4 male joint of the solar panel is connected with the MC4 female joint integrated on the charging patch cord, and the round hole of the DC7909 plug on the charging patch cord is connected with the socket center of the DC7909 socket; and the outer ring of the DC7909 plug of the charging patch cord is connected with the socket edge of the DC7909 socket.

5. Anti-reverse-connection circuit according to claim 1,

when the solar panels are connected in reverse,

the first end of the solar panel is the negative electrode of the solar panel, and the second end of the solar panel is the positive electrode of the solar panel;

the positive input end is directly connected with the negative electrode of the solar cell panel, and the negative input end is directly connected with the positive electrode of the solar cell panel; or,

the positive input end is connected with the negative electrode of the solar cell panel through a charging patch cord, and meanwhile, the negative input end is connected with the positive electrode of the solar cell panel through the charging patch cord.

6. Anti-reverse-connection circuit according to claim 5,

the first end of solar cell panel specifically includes: the MC4 female joint of the solar cell panel; the second end of solar cell panel specifically includes: an MC4 male connector of the solar panel;

the positive input end specifically comprises: an MC4 male connector integrated on the reverse-connection prevention circuit; the negative electrode input end specifically comprises: an MC4 female connector integrated on the reverse-connection preventing circuit;

7. Anti-reverse-connection circuit according to claim 5,

the first end of solar cell panel specifically includes: the MC4 female joint of the solar cell panel; the second end of solar cell panel specifically includes: the MC4 male connector of the solar cell panel;

8. The reverse connection prevention circuit according to claim 5,

the first end of solar cell panel specifically includes: the MC4 male connector of the solar cell panel; the second end of solar cell panel specifically includes: the MC4 female joint of the solar cell panel;

the positive input end specifically comprises: the jack center of the DC7909 socket; the negative input terminal includes: the socket edge of the DC7909 socket;

the charging patch cord specifically includes: the charging patch cord comprises an MC4 male connector integrated on the charging patch cord, an MC4 female connector integrated on the charging patch cord, a round hole of a DC7909 plug and an outer ring of the DC7909 plug; the MC4 male connector integrated on the charging patch cord is a negative electrode, the MC4 female connector integrated on the charging patch cord is a positive electrode, the round hole of the DC7909 plug on the charging patch cord is a negative electrode, and the outer ring of the DC7909 plug on the charging patch cord is a positive electrode;

the MC4 female connector of the solar panel is connected with the MC4 male connector integrated on the charging patch cord, the MC4 male connector of the solar panel is connected with the MC4 female connector integrated on the charging patch cord, and the round hole of the DC7909 plug on the charging patch cord is connected with the socket center of the DC7909 socket; and the outer ring of the DC7909 plug of the charging patch cord is connected with the socket edge of the DC7909 socket.

9. Anti-reverse-connection circuit according to claim 1,

the first control unit includes: the LED driving circuit comprises an MOS tube (Q5) with a body diode, a controller (PV 1-ON) end, a triode (Q6), a triode (Q17) and a light-emitting diode (U25);

the first control unit is specifically configured to:

when the solar panel is positively connected, the voltage of the controller (PV 1-ON) end is set to be a first voltage, so that the light-emitting diode (U25) is conducted and emits light, and when the source electrode of the MOS tube (Q5) is grounded, if the VGS voltage between the grid electrode of the MOS tube (Q5) and the source electrode of the MOS tube (Q5) is larger than the conducting voltage of the MOS tube (Q5), the MOS tube (Q5) is controlled to be conducted; wherein the voltage of the grid electrode of the MOS tube (Q5) is determined by the controller (PV 1-ON) end, the triode Q6, the triode Q17 and the light-emitting diode (U25); or,

the first control unit is specifically further configured to:

when the solar panel is connected positively, the voltage of the controller (PV 1-ON) end is set to be a second voltage, so that the light-emitting diode (U25) is not conducted and does not emit light, the triode (Q6) and the triode (Q17) are cut off, and when the source electrode of the MOS tube (Q5) with the body diode is grounded, if the VGS voltage between the grid electrode of the MOS tube (Q5) and the source electrode of the MOS tube (Q5) is larger than the conducting voltage of the MOS tube Q5, the MOS tube (Q5) is controlled to be conducted.

10. The reverse connection prevention circuit according to claim 1,

the first control unit is configured to:

when the solar panel is reversely connected, the source voltage of the MOS tube (Q5) is a third voltage, the voltage of the end of a controller (PV 1-ON) is set to be a fourth voltage, a light-emitting diode (U25) is conducted and emits light, and if the VGS voltage between the grid of the MOS tube (Q5) and the source of the MOS tube (Q5) is smaller than the conducting voltage of the MOS tube (Q5), the MOS tube (Q5) is controlled to be cut off so as to control the input circuit comprising the MOS tube (Q5) to be cut off; wherein the voltage of the grid electrode of the MOS tube (Q5) is determined by the controller (PV 1-ON) end, the triode Q6, the triode Q17 and the light-emitting diode (U25); or,

the first control unit is further configured to:

when the solar panel is reversely connected, the source voltage applied to the MOS tube (Q5) with the body diode is the third voltage, when the voltage of the end of the controller (PV 1-ON) is set to be the fifth voltage, the light-emitting diode (U25) is not conducted and does not emit light, therefore, the triode (Q6) and the triode (Q17) are cut off, if the VGS voltage between the grid electrode of the MOS tube (Q5) and the source electrode of the MOS tube (Q5) is smaller than the conducting voltage of the MOS tube (Q5), the MOS tube (Q5) is cut off, and the input circuit comprising the MOS tube (Q5) is cut off.

11. Anti-reverse-connection circuit according to claim 1,

the second control unit includes: the power supply comprises a controller (PV 1-DRV) end, an MOS (metal oxide semiconductor) tube (Q3) with a body diode, a triode (Q39) and a (+ 12V) power supply input end;

the second control unit is specifically configured to:

when the solar cell panel is positively connected, when the voltage applied to the controller (PV 1-DRV) end is detected to be in a preset range, the triode (Q39) is cut off, a loop among the triode (Q39), the (+ 12V) power supply input end and the ground is cut off, and when the source electrode of the MOS transistor (Q3) with the body diode is grounded, VGS voltage between the grid electrode of the MOS transistor (Q3) and the source electrode of the MOS transistor (Q3) is controlled to be larger than the conducting voltage of the MOS transistor (Q3), so that the MOS transistor (Q3) is conducted.

12. Anti-reverse-connection circuit according to claim 1,

the second control unit is specifically configured to:

when the solar panel is reversely connected, the source voltage of the MOS tube (Q3) is a seventh voltage, the VGS voltage between the grid of the MOS tube (Q3) and the source of the MOS tube (Q3) is controlled to be smaller than the conduction voltage of the MOS tube (Q3), so that the MOS tube (Q3) is cut off, the input circuit comprising the MOS tube (Q3) is disconnected, and the voltage of the grid of the MOS tube (Q3) is determined by the PV1-DRV end, the MOS tube (Q3) with a body diode, a triode (Q39) and a (+ 12V) power supply input end.

13. An energy storage power supply, comprising:

the anti-reverse connection circuit of any one of claims 1-12, a solar panel, a charging circuit, a battery, a voltage boosting unit, a voltage dropping unit, a first inverter, a second inverter, a first current output interface, a second current output interface, a third current output interface, and a fourth current output interface; wherein,

the first end of the solar cell panel is connected with the positive input end; the solar energy second end of the battery plate is connected with the negative electrode input end; the solar panel is used for converting the acquired solar energy into electric energy; the first output end of the charging circuit is connected with the first input end of the battery; the second output end of the charging circuit is connected with the second input end of the battery; the first output end of the battery is connected with the first current output interface through the boosting unit; the first output end of the battery is also connected with the third output interface through the boosting unit and the first inverter;

14. The energy storage power supply of claim 13, further comprising:

the system comprises a display module, a communication module, a GPS module, an Anderson port, a cigarette lighter interface, an aerial plug and an MPPT controller; wherein,

the display module is operable to:

displaying the state of charge of the battery in the energy storage power supply, and displaying abnormal information of the battery temperature when the temperature of the battery exceeds a first threshold value or a second threshold value of the temperature of the battery;

when the charging current of the battery exceeds a third threshold value or the discharging current of the battery exceeds a fourth threshold value, displaying abnormal charging and discharging information of the battery; and the number of the first and second groups,

when the charging voltage of a single chemical battery in the battery exceeds a fifth threshold value or the charging voltage of the single chemical battery in the battery is smaller than a sixth threshold value, displaying battery charging and discharging abnormal information;

wherein the first threshold is less than the second threshold; the third threshold is less than a fourth threshold; the fifth threshold is greater than the sixth threshold;

the communication module is configured to: transmitting a distress request signal to terminal communication equipment, and receiving a response signal sent by the terminal communication equipment in response to the received distress request signal;

the GPS module is used for:

simultaneously receiving a first GPS signal sent by a first GPS satellite, a second GPS signal sent by a second GPS satellite and a third GPS signal sent by a third GPS satellite, carrying out difference processing on a timestamp acquired from the first GPS signal and a time point on the GPS module when the GPS module receives the first GPS signal so as to obtain a first time difference, and obtaining a first distance between the GPS module and the first GPS satellite by taking the propagation speed of light as the transmission speed of the first GPS signal; performing difference processing on a timestamp acquired from the second GPS signal and a time point on the GPS module when the GPS module receives the second GPS signal to acquire a second time difference, and taking the propagation speed of the light as the transmission speed of the second GPS signal to acquire a second distance between the GPS module and a second GPS satellite; calculating a third distance between the GPS module and a third GPS satellite according to the third GPS signal, and determining the position information of the energy storage power supply comprising the GPS module based on the first distance, the second distance and the third distance;

the Anderson port to: charging the carrying device;

the cigar lighter interface is used for: charging other devices;

the aerial plug is used for:

one or N battery packs are connected in parallel to improve the electric energy storage capacity of the energy storage power supply; a natural number where N is greater than or equal to 2; or,

one or M energy storage devices are connected in series to increase the output voltage of the energy storage power supply; wherein the energy storage device is an energy storage power supply for storing the electric energy and outputting the electric energy; m is a natural number greater than or equal to 2;

the MPPT controller is used for monitoring and acquiring the power generation voltage and the power generation current of the solar cell panel in real time, tracking a preset voltage and a preset current, acquiring preset power according to the preset voltage and the preset current, and charging the battery according to the preset power; the preset voltage is one of a plurality of generated voltages acquired by the MPPT controller at the current moment; the preset voltage is one of a plurality of generated currents acquired by the MPPT controller at the current moment; the preset power is one maximum power of a plurality of powers obtained by the MPPT controller at the current moment.