Convenient power supply system

Abstract

The utility model discloses a convenient power supply system comprising a plurality of photovoltaic panels which are detachably connected with a fence wall body through a mounting bracket; the charging control circuit is electrically connected with the photovoltaic panel; the storage battery is electrically connected with the charging control circuit; the inverter is electrically connected with the storage battery; the charging control circuit includes: a microprocessor; the first acquisition circuit is used for measuring the voltage of the storage battery; the second acquisition circuit is used for measuring the current of the storage battery; the third acquisition circuit is used for measuring the voltage of the photovoltaic panel; and the charging circuit is electrically connected with the microprocessor, the photovoltaic panel and the storage battery. According to the scheme, in the fence construction period, the photovoltaic panel can be installed on the upper portion of the fence wall through the installation support, power is supplied to the storage battery through the photovoltaic panel and the charging control circuit, and power can be supplied to the electric tool through the storage battery and the inverter.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology for engineering construction, and specifically to a convenient power supply system. Background Technology

[0002] During the construction process, in order to ensure the safety of the surrounding area, it is necessary to use fences and other barriers to enclose the construction site. However, the supporting power supply is not adequate, and temporary power supply is often required during construction. Temporary power supply by running wires is costly and time-consuming and labor-intensive. Since it is temporary power supply, the duration of power use is uncertain, and there are frequent wire running and rewinding operations, which affects construction efficiency and increases construction costs. Utility Model Content

[0003] This invention provides a convenient power supply system. During construction site enclosure, photovoltaic panels can be installed on the upper part of the enclosure wall using mounting brackets. The photovoltaic panels and charging control circuit power a storage battery. The storage battery and inverter can then power electrical tools. By installing the system in multiple locations, it can meet the temporary power needs of different areas. The system is simple and convenient to operate, helping to improve construction efficiency and reduce construction costs.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] This utility model provides a convenient power supply system, comprising:

[0006] Multiple photovoltaic panels are detachably connected to the perimeter wall via mounting brackets.

[0007] The charging control circuit is electrically connected to the photovoltaic panel;

[0008] The battery is electrically connected to the charging control circuit;

[0009] Inverter electrically connected to the battery;

[0010] The charging control circuit includes:

[0011] microprocessor;

[0012] A first acquisition circuit for measuring the voltage of the battery, the first acquisition circuit being electrically connected to the microprocessor and the battery;

[0013] A second acquisition circuit for measuring the current of the battery, the second acquisition circuit being electrically connected to the microprocessor and the battery;

[0014] A third acquisition circuit for measuring the voltage of the photovoltaic panel, the third acquisition circuit being electrically connected to the microprocessor and the photovoltaic panel;

[0015] A charging circuit, which is electrically connected to the microprocessor, the photovoltaic panel, and the battery;

[0016] The enclosure wall includes:

[0017] A frame structure formed by connecting two columns and two beams end to end in sequence;

[0018] The frame structure is internally connected to baffles;

[0019] The upper ends of the two columns are formed with protrusions, and the protrusions are detachably connected to the mounting bracket;

[0020] The bottom of the two columns is equipped with connecting lugs;

[0021] The mounting bracket includes:

[0022] Connecting seat, wherein the connecting seat is detachably connected to the protrusion;

[0023] A support column, which is connected to the connecting seat;

[0024] A support frame is provided, which is connected to the support column, and the photovoltaic panel is installed on the upper surface of the support frame.

[0025] Multiple reinforcing rods are connected between the load-bearing frame and the support column;

[0026] The connector includes:

[0027] A connector, wherein the connector has an internal cavity for insertion, and the cavity is inserted into the protrusion;

[0028] The surface of the connector is provided with a threaded hole, and a fastening bolt is threaded inside the threaded hole;

[0029] The charging circuit includes:

[0030] The eighth MOSFET has its gate electrically connected to the EPWM3A pin of the microprocessor via the tenth resistor. A ninth resistor is electrically connected between the gate and source of the eighth MOSFET. The source of the eighth MOSFET is electrically connected to the positive terminal of the photovoltaic panel via the fourteenth capacitor. The drain of the eighth MOSFET is electrically connected to the negative terminal of the photovoltaic panel. The seventh, eighth, ninth, tenth, and eleventh capacitors are all connected in parallel with the fourteenth capacitor. A twelfth resistor is electrically connected between the positive and negative terminals of the photovoltaic panel. The thirteenth and fourteenth resistors are all connected in parallel with the twelfth resistor. The positive terminal of the photovoltaic panel is electrically connected to the positive terminal of the battery.

[0031] The first MOSFET has its source electrically connected to the source of the eighth MOSFET. The drain of the first MOSFET is electrically connected to the positive terminal of the battery through a first diode. The drain of the first MOSFET is also electrically connected to the positive terminal of the battery through a first capacitor and a first resistor. A third capacitor and a third resistor are electrically connected between the source and drain of the first MOSFET. A fourth resistor is connected in parallel with the third resistor. The gate of the first MOSFET is electrically connected to the EPWM1A pin of the microprocessor through a seventh resistor.

[0032] The second MOSFET has its source electrically connected to the source of the eighth MOSFET. The drain of the second MOSFET is electrically connected to the positive terminal of the battery through a second diode. The drain of the second MOSFET is also electrically connected to the positive terminal of the battery through a second capacitor and a second resistor. A fourth capacitor and a fifth resistor are electrically connected between the source and drain of the second MOSFET. A sixth resistor is connected in parallel with the fifth resistor. The gate of the second MOSFET is electrically connected to the EPWM1A pin of the microprocessor through an eighth resistor.

[0033] The first inductor has its first pin electrically connected to the drain of the first MOSFET and the drain of the second MOSFET. The second pin of the first inductor is electrically connected to the positive terminal of the battery through the fifth capacitor. The sixth capacitor is connected in parallel with the fifth capacitor.

[0034] The third MOSFET has its source electrically connected to the second pin of the first inductor via a first load resistor. The second and third load resistors are connected in parallel with the first load resistor. The gate of the third MOSFET is electrically connected to the positive terminal of the battery via an eleventh resistor. The drain of the third MOSFET is electrically connected to the negative terminal of the battery via a first fuse. The second and third fuses are connected in parallel with the first fuse. The drain of the third MOSFET is electrically connected to the positive terminal of the battery via a twelfth capacitor. The drain of the third MOSFET is grounded.

[0035] Optionally, the first acquisition circuit includes:

[0036] The first operational amplifier has its VCC+ pin electrically connected to the VDD pin of the microprocessor, its GND pin connected to the chassis ground, its 2IN+ pin electrically connected to the positive terminal of the battery through the 29th and 30th resistors, its 2IN- pin electrically connected to the 2IN+ pin by the 20th capacitor, its 2IN- pin grounded through the 27th and 28th resistors, its 2OUT pin electrically connected to the 2IN- pin by the 26th resistor, and its 2OUT pin electrically connected to the ADCINA2 pin of the microprocessor through the 25th resistor.

[0037] Optionally, the second acquisition circuit includes:

[0038] The second operational amplifier has its VCC+ pin electrically connected to the VDD pin of the microprocessor, and its GND pin connected to the chassis ground. The 2IN+ pin of the second operational amplifier is electrically connected to the connection point of the first load resistor and the source of the third MOSFET via a 39th resistor. A 26th capacitor is electrically connected between the 2IN- pin and the 2IN+ pin of the second operational amplifier. The 2IN- pin of the second operational amplifier is electrically connected to the connection point of the first load resistor and the first inductor via a 38th resistor. A 37th resistor is electrically connected between the 2OUT pin and the 2IN- pin of the second operational amplifier. The 2OUT pin of the second operational amplifier is electrically connected to the ADCINA3 pin of the microprocessor via 35th and 36th resistors.

[0039] Optionally, the third acquisition circuit includes:

[0040] The third operational amplifier has its VCC+ pin electrically connected to the VDD pin of the microprocessor, its GND pin connected to the chassis ground, its 1IN+ pin electrically connected to the positive terminal of the photovoltaic panel through resistors 45 and 46, its 1IN- pin electrically connected to its 1IN+ pin by a capacitor 31, its 1IN- pin electrically connected to the negative terminal of the photovoltaic panel through resistors 43 and 44, its 1OUT pin electrically connected to its 1IN- pin by a capacitor 28, and its 1OUT pin electrically connected to the ADCINA1 pin of the microprocessor through resistors 41 and 42.

[0041] Optionally, the support frame is tilted.

[0042] The above-described solution of this utility model has at least the following beneficial effects:

[0043] The above-described solution of this utility model allows photovoltaic panels to be installed on the upper part of the construction site wall using mounting brackets during the construction period. The photovoltaic panels and charging control circuit power the battery. The battery and inverter power the electrical tools. By installing the panels in multiple locations, it can meet the temporary power needs of different locations. The operation is simple and convenient, helping to improve construction efficiency and reduce construction costs. Attached Figure Description

[0044] Figure 1 This is a block diagram of a convenient power supply system provided by an embodiment of the present invention;

[0045] Figure 2 This is a block diagram of the charging control circuit in the convenient power supply system provided by an embodiment of the present invention;

[0046] Figure 3 This is a circuit diagram of the microprocessor in the convenient power supply system provided by an embodiment of the present invention;

[0047] Figure 4 This is a circuit diagram of the charging circuit in the convenient power supply system provided by an embodiment of this utility model;

[0048] Figure 5 This is a circuit diagram of the first acquisition circuit in the convenient power supply system provided by an embodiment of this utility model;

[0049] Figure 6 This is a circuit diagram of the second acquisition circuit in the convenient power supply system provided by an embodiment of this utility model;

[0050] Figure 7 This is a circuit diagram of the third acquisition circuit in the convenient power supply system provided by an embodiment of this utility model;

[0051] Figure 8 This is a schematic diagram of the photovoltaic panel installation structure in a convenient power supply system provided by an embodiment of this utility model;

[0052] Figure 9 This is a rear view of the mounting bracket in the convenient power supply system provided by an embodiment of this utility model. Detailed Implementation

[0053] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0054] like Figures 1-9 As shown, this utility model provides a convenient power supply system, including:

[0055] Multiple photovoltaic panels 10 are detachably connected to the enclosure wall via mounting brackets.

[0056] Charging control circuit 20 is electrically connected to photovoltaic panel 10;

[0057] A storage battery 30 is electrically connected to the charging control circuit 20;

[0058] Inverter 40 is electrically connected to battery 30.

[0059] In this embodiment, in the early stage of construction, the construction site is enclosed by a fence wall. On the fence wall corresponding to the location where temporary power may be used in the construction site, a photovoltaic panel 10 is installed by a mounting bracket. The charging control circuit 20 is electrically connected to the photovoltaic panel 10, the battery 20 is electrically connected to the charging control circuit 20, and the inverter 40 is electrically connected to the battery 30.

[0060] Solar power is generated by photovoltaic panel 10 and charging control circuit 20 and stored in battery 30. When temporary power is needed, the power tools are electrically connected to inverter 40 to provide temporary power. By installing in multiple locations, it can meet the temporary power needs of different locations. The operation is simple and convenient, which helps to improve construction efficiency and reduce construction costs.

[0061] like Figure 2 As shown, in an optional embodiment of the present invention, the charging control circuit 20 includes:

[0062] Microprocessor U1;

[0063] A first acquisition circuit 21 for measuring the voltage of the storage battery 30 is electrically connected to the microprocessor U1 and the storage battery 30.

[0064] A second acquisition circuit 22 for measuring the current of the storage battery 30 is electrically connected to the microprocessor U1 and the storage battery 30.

[0065] A third acquisition circuit 23 for measuring the voltage of photovoltaic panel 10 is electrically connected to microprocessor U1 and photovoltaic panel 10.

[0066] The charging circuit 24 is electrically connected to the microprocessor U1, the photovoltaic panel 10, and the battery 30.

[0067] In this embodiment, the voltage of the battery 30 is measured by the first acquisition circuit 21 and the voltage signal of the battery 30 is transmitted to the microprocessor U1. The current of the battery 30 is measured by the second acquisition circuit 22 and the current signal of the battery 30 is transmitted to the microprocessor U1. The voltage of the photovoltaic panel 10 is measured by the third acquisition circuit 23 and the voltage signal of the photovoltaic panel 10 is transmitted to the microprocessor U1. The microprocessor U1 controls the charging circuit 24 based on the voltage signal of the battery 30, the current signal of the battery 30, and the voltage signal of the photovoltaic panel 10, so as to generate electricity using the photovoltaic panel 10 and charge the battery 30.

[0068] like Figure 4 As shown, in an optional embodiment of the present invention, the charging circuit 24 includes:

[0069] The eighth MOSFET Q8 has its gate electrically connected to the EPWM3A pin of the microprocessor U1 via the tenth resistor R10. A ninth resistor R9 connects the gate and source of the eighth MOSFET Q8. The source of the eighth MOSFET Q8 is electrically connected to the positive terminal of the photovoltaic panel 10 via the fourteenth capacitor C14. The drain of the eighth MOSFET Q8 is electrically connected to the negative terminal of the photovoltaic panel 10. Seventh capacitor C7, eighth capacitor C8, ninth capacitor C9, tenth capacitor C10, and eleventh capacitor C11 are all connected in parallel with the fourteenth capacitor C14. A twelfth resistor R12 connects the positive and negative terminals of the photovoltaic panel 10. Thirteenth resistor R13 and fourteenth resistor R14 are all connected in parallel with the twelfth resistor R12. The positive terminal of the photovoltaic panel 10 is electrically connected to the positive terminal of the battery 30.

[0070] The first MOSFET Q1 has its source electrically connected to the source of the eighth MOSFET Q8. The drain of the first MOSFET Q1 is electrically connected to the positive terminal of the battery 30 through the first diode D1. The drain of the first MOSFET Q1 is electrically connected to the positive terminal of the battery 30 through the first capacitor C1 and the first resistor R1. The source and drain of the first MOSFET Q1 are electrically connected by a third capacitor C3 and a third resistor R3. A fourth resistor R4 is connected in parallel with the third resistor R3. The gate of the first MOSFET Q1 is electrically connected to the EPWM1A pin of the microprocessor U1 through the seventh resistor R7.

[0071] The source of the second MOSFET Q2 is electrically connected to the source of the eighth MOSFET Q8. The drain of the second MOSFET Q2 is electrically connected to the positive terminal of the battery 30 through the second diode D2. The drain of the second MOSFET Q2 is electrically connected to the positive terminal of the battery 30 through the second capacitor C2 and the second resistor R2. The source and drain of the second MOSFET Q2 are electrically connected by the fourth capacitor C4 and the fifth resistor R5. The sixth resistor R6 is connected in parallel with the fifth resistor R5. The gate of the second MOSFET Q2 is electrically connected to the EPWM1A pin of the microprocessor U1 through the eighth resistor R8.

[0072] The first inductor L1 has its first pin electrically connected to the drain of the first MOSFET Q1 and the drain of the second MOSFET Q2. The second pin of the first inductor L1 is electrically connected to the positive terminal of the battery 30 through the fifth capacitor C5. The sixth capacitor C6 is connected in parallel with the fifth capacitor C5.

[0073] The third MOSFET Q3 has its source electrically connected to the second pin of the first inductor L1 via the first load resistor LR1. The second load resistor LR2 and the third load resistor LR3 are connected in parallel with the first load resistor LR1. The gate of the third MOSFET Q3 is electrically connected to the positive terminal of the battery 30 via the eleventh resistor R11. The drain of the third MOSFET Q3 is electrically connected to the negative terminal of the battery 30 via the first fuse F1. The second fuse F2 and the third fuse F3 are connected in parallel with the first fuse F1. The drain of the third MOSFET Q3 is electrically connected to the positive terminal of the battery 30 via the twelfth capacitor C12. The drain of the third MOSFET Q3 is grounded.

[0074] In this embodiment, the third MOSFET Q3 is used to provide reverse connection protection for the connection between the battery 30 and the charging circuit 24. Specifically, when the battery 30 is correctly connected to the charging circuit 24, the third MOSFET Q3 is in the conducting state under the positive voltage of the battery 30; when the battery 30 is reverse connected to the charging circuit 24, the third MOSFET Q3 is in the cut-off state under the reverse voltage of the battery 30, thereby providing reverse connection protection for the battery 30 through the third MOSFET Q3.

[0075] When the voltage signals of both the photovoltaic panel 10 and the battery 30 are greater than the first preset voltage value, the microprocessor U1 controls the eighth MOSFET Q8 to be in the conducting state, so that the photovoltaic panel 10 and the battery 30 form a charging circuit. At the same time, the microprocessor U1 controls the first MOSFET Q1 and the second MOSFET Q2 to switch on and off at a preset frequency, thereby charging the battery 30 through the first inductor L1, the sixth capacitor C6 and the fifth capacitor C5. The microprocessor U1 determines the charging state of the battery 30 according to the current signal of the battery 30, and adjusts the charging state of the battery 30 by controlling the conduction time of the first MOSFET Q1 and the second MOSFET Q2, so as to ensure that the battery 30 is charged efficiently and safely.

[0076] In this embodiment, a fourth MOSFET Q4, a fifth MOSFET Q5, a sixth MOSFET Q6, and a seventh MOSFET Q7 are also provided. The gates of the fourth MOSFET Q4, the fifth MOSFET Q5, the sixth MOSFET Q6, and the seventh MOSFET Q7 are all electrically connected to the gate of the third MOSFET Q3. The drains of the fourth MOSFET Q4, the fifth MOSFET Q5, the sixth MOSFET Q6, and the seventh MOSFET Q7 are all electrically connected to the drain of the third MOSFET Q3. The sources of the fourth MOSFET Q4, the fifth MOSFET Q5, the sixth MOSFET Q6, and the seventh MOSFET Q7 are all electrically connected to the source of the third MOSFET Q3. The third MOSFET Q3, the fourth MOSFET Q4, the fifth MOSFET Q5, the sixth MOSFET Q6, and the seventh MOSFET Q7 ensure the reliability and stability of the reverse connection protection for the battery 30.

[0077] like Figure 5 As shown, in an optional embodiment of the present invention, the first acquisition circuit 21 includes:

[0078] The first operational amplifier U2 has its VCC+ pin electrically connected to the VDD pin of the microprocessor U1. Its GND pin is connected to the chassis ground. The 2IN+ pin of the first operational amplifier U2 is electrically connected to the positive terminal of the battery 30 via resistors R29 (29th) and R30 (30th). A capacitor C20 is electrically connected between the 2IN- pin and the 2IN+ pin of the first operational amplifier U2. The 2IN- pin of the first operational amplifier U2 is grounded via resistors R27 (27th) and R28 (28th). A resistor R26 is electrically connected between the 2OUT pin and the 2IN- pin of the first operational amplifier U2. The 2OUT pin of the first operational amplifier U2 is electrically connected to the ADCINA2 pin of the microprocessor U1 via resistor R25 (25th).

[0079] In this embodiment, the 2IN+ pin of the first operational amplifier U2 is electrically connected to the positive terminal of the battery 30 through the twenty-ninth resistor R29 and the thirtieth resistor R30, the 2IN- pin of the first operational amplifier U2 is grounded through the twenty-seventh resistor R27 and the twenty-eighth resistor R28, and the 2OUT pin of the first operational amplifier U2 is electrically connected to the ADCINA2 pin of the microprocessor U1 through the twenty-fifth resistor R25. This allows the first operational amplifier U2 to measure the voltage signal of the battery 30 and transmit the voltage signal of the battery 30 to the microprocessor U1.

[0080] like Figure 6 As shown, in an optional embodiment of the present invention, the second acquisition circuit 22 includes:

[0081] The second operational amplifier U3 has its VCC+ pin electrically connected to the VDD pin of the microprocessor U1, and its GND pin connected to the chassis ground. The 2IN+ pin of the second operational amplifier U3 is electrically connected to the connection point of the first load resistor LR1 and the source of the third MOSFET Q3 via the thirty-ninth resistor 39. A twenty-sixth capacitor C26 is electrically connected between the 2IN- pin and the 2IN+ pin of the second operational amplifier U3. The 2IN- pin of the second operational amplifier U3 is electrically connected to the connection point of the first load resistor LR1 and the first inductor L1 via the thirty-eighth resistor R38. A thirty-seventh resistor R37 is electrically connected between the 2OUT pin and the 2IN- pin of the second operational amplifier U3. The 2OUT pin of the second operational amplifier U3 is electrically connected to the ADCINA3 pin of the microprocessor U1 via the thirty-fifth resistor R35 and the thirty-sixth resistor R36.

[0082] In this embodiment, the 2IN+ pin of the second operational amplifier U3 is electrically connected to the connection point of the first load resistor LR1 and the source of the third MOS transistor Q3 through the thirty-ninth resistor 39. The 2IN- pin of the second operational amplifier U3 is electrically connected to the connection point of the first load resistor LR1 and the first inductor L1 through the thirty-eighth resistor R38. The 2OUT pin of the second operational amplifier U3 is electrically connected to the ADCINA3 pin of the microprocessor U1 through the thirty-fifth resistor R35 and the thirty-sixth resistor R36. The second operational amplifier U3 can measure the current signal of the first load resistor LR1, thereby measuring the current signal of the battery 30, and transmitting the current signal of the battery 30 to the microprocessor U1.

[0083] like Figure 7 As shown, in an optional embodiment of the present invention, the third acquisition circuit 23 includes:

[0084] The third operational amplifier U4 has its VCC+ pin electrically connected to the VDD pin of the microprocessor U1, and its GND pin connected to the chassis ground. The 1IN+ pin of the third operational amplifier U4 is electrically connected to the positive terminal of the photovoltaic panel 10 via resistors R45 (45) and R46 (46). A capacitor C31 is electrically connected between the 1IN- pin and the 1IN+ pin of the third operational amplifier U4. The 1IN- pin of the third operational amplifier U4 is electrically connected to the negative terminal of the photovoltaic panel 10 via resistors R43 (43) and R44 (44). A capacitor C28 is electrically connected between the 1OUT pin and the 1IN- pin of the third operational amplifier U4. The 1OUT pin of the third operational amplifier U4 is electrically connected to the ADCINA1 pin of the microprocessor U1 via resistors R41 (41) and R42 (42).

[0085] In this embodiment, the 1IN+ pin of the third operational amplifier U4 is electrically connected to the positive terminal of the photovoltaic panel 10 through the forty-fifth resistor R45 and the forty-sixth resistor R46, the 1IN- pin of the third operational amplifier U4 is electrically connected to the negative terminal of the photovoltaic panel 10 through the forty-third resistor R43 and the forty-fourth resistor R44, and the 1OUT pin of the third operational amplifier U4 is electrically connected to the ADCINA1 pin of the microprocessor U1 through the forty-first resistor R41 and the forty-second resistor R42. This allows the third operational amplifier U4 to measure the voltage signal of the photovoltaic panel 10 and transmit the voltage signal of the photovoltaic panel 10 to the microprocessor U1.

[0086] like Figure 8 As shown, in an optional embodiment of this utility model, the fencing wall includes:

[0087] A frame structure formed by connecting two columns 51 and two beams 52 end to end in sequence;

[0088] The frame structure is internally connected with baffles 53;

[0089] The upper ends of the two columns 51 are formed with protrusions 55, and the protrusions 55 are detachably connected to the mounting bracket;

[0090] The bottom of the two uprights 51 is provided with connecting lugs 54.

[0091] In this embodiment, a frame structure is formed by connecting two columns 51 and two beams 52 end to end in sequence, and a baffle 53 is connected inside the frame structure to form the main body of the enclosure wall, which can enclose the construction site. The columns 51 can be fixed to the ground by connecting the lugs 54 and the anchor bolts; the mounting bracket can be installed by the protrusions 55.

[0092] like Figure 8 and Figure 9As shown, in an optional embodiment of the present invention, the mounting bracket includes:

[0093] Connecting seat, the connecting seat is detachably connected to the protrusion 55;

[0094] Support column 12, which is connected to the connecting seat;

[0095] The support frame 11 is connected to the support column 12, and the photovoltaic panel 10 is installed on the upper surface of the support frame 11.

[0096] Multiple reinforcing rods 13 are connected between the load-bearing frame 11 and the support column 12.

[0097] In this embodiment, the connection between the mounting bracket and the enclosure wall can be achieved through the detachable connection between the connecting seat and the protrusion 55. The photovoltaic panel 10 is effectively supported by the support column 12 and the load-bearing frame 11. The stability of the load-bearing frame 11 can be further improved by the multiple reinforcing rods 13, thereby ensuring the stability of the photovoltaic panel 10.

[0098] like Figure 9 As shown, in an optional embodiment of the present invention, the connecting base includes:

[0099] The socket 14 has a socket cavity inside, which is engaged with the protrusion 55.

[0100] The surface of the connector 14 is provided with a threaded hole 15, and a fastening bolt is connected to the threaded hole 15.

[0101] In this embodiment, when connecting the connector and the protrusion 55, the protrusion 55 is inserted into the insertion cavity inside the connector 14, and the fastening bolt in the threaded hole 15 is tightened so that the fastening bolt and the protrusion 55 are in close contact, thereby achieving the connection between the connector and the protrusion 55.

[0102] In practical applications, the insertion cavity inside the connector 14 can accommodate the simultaneous insertion of the protrusions 55 of two enclosure walls, which helps to improve the connection stability between the connector and the protrusions 55.

[0103] like Figure 8 and Figure 9 As shown, in an optional embodiment of the present invention, the support frame 11 is inclined.

[0104] In this embodiment, by setting the support frame 11 as an inclined structure, the power generation effect of the photovoltaic panel 10 can be guaranteed.

[0105] The process of using the convenient power supply system:

[0106] The installation of the fencing wall can be achieved by connecting the lug 54 with the anchor bolts to fix the column 51 to the ground, thereby realizing the installation of a single fencing wall. By installing multiple fencing walls, the construction site can be fenced off.

[0107] After the photovoltaic panel 10 is installed and the enclosure wall is installed, the protrusion 55 is inserted into the insertion cavity inside the plug-in seat 14, and the fastening bolt in the threaded hole 15 is tightened to make the fastening bolt and the protrusion 55 in close contact, so as to realize the connection between the connecting seat and the protrusion 55, thereby completing the fixed installation of the mounting bracket.

[0108] The charging control circuit 20 is electrically connected to the photovoltaic panel 10, the storage battery 20 is electrically connected to the charging control circuit 20, and the inverter 40 is electrically connected to the storage battery 30.

[0109] Solar power is generated by photovoltaic panel 10 and charging control circuit 20 and stored in battery 30. When temporary power is needed, the power tools are electrically connected to inverter 40 to provide temporary power. By installing in multiple locations, it can meet the temporary power needs of different locations. The operation is simple and convenient, which helps to improve construction efficiency and reduce construction costs.

[0110] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A convenient power supply system, characterized in that: include: Multiple photovoltaic panels (10) are detachably connected to the fence wall via mounting brackets; A charging control circuit (20) electrically connected to the photovoltaic panel (10); A storage battery (30) electrically connected to the charging control circuit (20); An inverter (40) electrically connected to the battery (30); The charging control circuit (20) includes: Microprocessor (U1); A first acquisition circuit (21) for measuring the voltage of the storage battery (30) is electrically connected to the microprocessor (U1) and the storage battery (30); A second acquisition circuit (22) for measuring the current of the battery (30) is electrically connected to the microprocessor (U1) and the battery (30); A third acquisition circuit (23) for measuring the voltage of the photovoltaic panel (10) is electrically connected to the microprocessor (U1) and the photovoltaic panel (10); The charging circuit (24) is electrically connected to the microprocessor (U1), the photovoltaic panel (10) and the battery (30); The enclosure wall includes: A frame structure formed by connecting two columns (51) and two beams (52) end to end in sequence; The frame structure is internally connected to a baffle (53); The upper ends of the two columns (51) are formed with protrusions (55), and the protrusions (55) are detachably connected to the mounting bracket; The bottom of the two columns (51) is provided with connecting lugs (54); The mounting bracket includes: A connecting seat, which is detachably connected to the protrusion (55); Support column (12), the support column (12) is connected to the connecting seat; A support frame (11) is connected to the support column (12), and the photovoltaic panel (10) is installed on the upper surface of the support frame (11); Multiple reinforcing rods (13) are connected between the load-bearing frame (11) and the support column (12); The connecting seat includes: The socket (14) has a socket cavity inside, which is engaged with the protrusion (55). The surface of the plug-in (14) is provided with a threaded hole (15), and a fastening bolt is threaded inside the threaded hole (15); The charging circuit (24) includes: The eighth MOSFET (Q8) has its gate electrically connected to the EPWM3A pin of the microprocessor (U1) via the tenth resistor (R10). A ninth resistor (R9) is electrically connected between the gate and source of the eighth MOSFET (Q8). The source of the eighth MOSFET (Q8) is electrically connected to the positive terminal of the photovoltaic panel (10) via the fourteenth capacitor (C14). The drain of the eighth MOSFET (Q8) is connected to the negative terminal of the photovoltaic panel (10). Electrical connection; the seventh capacitor (C7), the eighth capacitor (C8), the ninth capacitor (C9), the tenth capacitor (C10) and the eleventh capacitor (C11) are all connected in parallel with the fourteenth capacitor (C14); the positive and negative terminals of the photovoltaic panel (10) are electrically connected by the twelfth resistor (R12), the thirteenth resistor (R13) and the fourteenth resistor (R14) are all connected in parallel with the twelfth resistor (R12), and the positive terminal of the photovoltaic panel (10) is electrically connected to the positive terminal of the battery (30); The first MOSFET (Q1) has its source electrically connected to the source of the eighth MOSFET (Q8). The drain of the first MOSFET (Q1) is electrically connected to the positive terminal of the battery (30) through the first diode (D1). The drain of the first MOSFET (Q1) is electrically connected to the positive terminal of the battery (30) through the first capacitor (C1) and the first resistor (R1). A third capacitor (C3) and a third resistor (R3) are electrically connected between the source and drain of the first MOSFET (Q1). A fourth resistor (R4) is connected in parallel with the third resistor (R3). The gate of the first MOSFET (Q1) is electrically connected to the EPWM1A pin of the microprocessor (U1) through the seventh resistor (R7). The second MOSFET (Q2) has its source electrically connected to the source of the eighth MOSFET (Q8). The drain of the second MOSFET (Q2) is electrically connected to the positive terminal of the battery (30) through the second diode (D2). The drain of the second MOSFET (Q2) is electrically connected to the positive terminal of the battery (30) through the second capacitor (C2) and the second resistor (R2). A fourth capacitor (C4) and a fifth resistor (R5) are electrically connected between the source and drain of the second MOSFET (Q2). A sixth resistor (R6) is connected in parallel with the fifth resistor (R5). The gate of the second MOSFET (Q2) is electrically connected to the EPWM1A pin of the microprocessor (U1) through the eighth resistor (R8). The first inductor (L1) has its first pin electrically connected to the drain of the first MOSFET (Q1) and the drain of the second MOSFET (Q2). The second pin of the first inductor (L1) is electrically connected to the positive terminal of the battery (30) through the fifth capacitor (C5). The sixth capacitor (C6) is connected in parallel with the fifth capacitor (C5). The third MOSFET (Q3) has its source electrically connected to the second pin of the first inductor (L1) through the first load resistor (LR1). The second load resistor (LR2) and the third load resistor (LR3) are connected in parallel with the first load resistor (LR1). The gate of the third MOSFET (Q3) is electrically connected to the positive terminal of the battery (30) through the eleventh resistor (R11). The drain of the third MOSFET (Q3) is electrically connected to the negative terminal of the battery (30) through the first fuse (F1). The second fuse (F2) and the third fuse (F3) are connected in parallel with the first fuse (F1). The drain of the third MOSFET (Q3) is electrically connected to the positive terminal of the battery (30) through the twelfth capacitor (C12). The drain of the third MOSFET (Q3) is grounded.

2. The convenient power supply system according to claim 1, characterized in that, The first acquisition circuit (21) includes: The first operational amplifier (U2) has its VCC+ pin electrically connected to the VDD pin of the microprocessor (U1), its GND pin connected to the chassis ground, its 2IN+ pin electrically connected to the positive terminal of the battery (30) through the 29th resistor (R29) and the 30th resistor (R30), its 2IN- pin electrically connected to the 2IN+ pin and its 2IN- pin by the 20th capacitor (C20), its 2IN- pin grounded through the 27th resistor (R27) and the 28th resistor (R28), its 2OUT pin electrically connected to the 2IN- pin by the 26th resistor (R26), and its 2OUT pin electrically connected to the ADCINA2 pin of the microprocessor (U1) through the 25th resistor (R25).

3. The convenient power supply system according to claim 1, characterized in that, The second acquisition circuit (22) includes: The second operational amplifier (U3) has its VCC+ pin electrically connected to the VDD pin of the microprocessor (U1), its GND pin connected to the chassis ground, its 2IN+ pin electrically connected to the connection point of the first load resistor (LR1) and the source of the third MOS transistor (Q3) via the thirty-ninth resistor (39), its 2IN- pin electrically connected to the 2IN+ pin via the twenty-sixth capacitor (C26), its 2IN- pin electrically connected to the connection point of the first load resistor (LR1) and the first inductor (L1) via the thirty-eighth resistor (R38), its 2OUT pin electrically connected to the 2IN- pin via the thirty-seventh resistor (R37), and its 2OUT pin electrically connected to the ADCINA3 pin of the microprocessor (U1) via the thirty-fifth resistor (R35) and the thirty-sixth resistor (R36).

4. The convenient power supply system according to claim 1, characterized in that, The third acquisition circuit (23) includes: The third operational amplifier (U4) has its VCC+ pin electrically connected to the VDD pin of the microprocessor (U1), its GND pin connected to the chassis ground, its 1IN+ pin electrically connected to the positive terminal of the photovoltaic panel (10) via resistors 45 (R45) and 46 (R46), its 1IN- pin electrically connected to its 1IN+ pin via capacitor 31 (C31), its 1IN- pin electrically connected to its 1IN+ pin via resistors 43 (R43) and 44 (R44), its 1OUT pin electrically connected to its 1IN- pin via capacitor 28 (C28), and its 1OUT pin electrically connected to its ADCINA1 pin of the microprocessor (U1) via resistors 41 (R41) and 42 (R42).

5. The convenient power supply system according to claim 1, characterized in that, The support frame (11) is set at an angle.

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