A shared charging system and control method

Abstract

The present invention discloses a shared charging system and a control method thereof, including an input circuit, an emergency charging module, an output circuit, a power supply circuit, a charging control circuit, a signal conversion circuit, a charging circuit, a shared power supply and a cloud server. The present invention charges a shared mobile power supply through a shared charging device, and the charging circuit can quickly charge multiple mobile power supplies at the same time. The input circuit supplies power to the shared charging device; the power supply circuit outputs a voltage of 3.3V to provide a working voltage; the output circuit can provide a minute of emergency charging; the signal conversion circuit is a circuit that converts data signals and clock signals between the charging circuit and the charging control circuit; the charging circuit includes an independent charging output interface. The device is powered by a multi-port shared power supply with a fast charging function, and has the advantages of low standby power consumption, large charging current, and high charging efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile power source charging, and in particular to a shared charging system and a control method. Background Art

[0002] With the improvement of living standards, more and more people carry multiple mobile phones, tablets, digital cameras and other rechargeable devices at the same time. These devices may not be able to be charged during travel. In order to ensure that these devices can be used normally and save your precious time, the market needs a mobile power bank with multiple output ports and fast charging function that can be rented by scanning a code, and this mobile power bank needs to be charged.

[0003] At the same time, with the rapid development of electronic technology, the functions of various electronic products such as mobile phones, laptops, digital cameras, etc. are becoming more and more powerful, the power consumption is also increasing, and the battery life is becoming shorter and shorter. This requires shared charging equipment to have a fast charging function to shorten the charging time of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a shared charging system and a control method to solve one or more of the above-mentioned problems in the prior art.

[0005] According to one aspect of the present invention, a shared charging system includes an input circuit, an emergency charging module, an output circuit, a power circuit, a charging control circuit, a signal conversion circuit, a charging circuit, a mobile power supply, and a cloud server;

[0006] The input terminal DC socket CON1 of the input circuit is electrically connected to the external power supply device, the 9V output terminal of the input circuit is electrically connected to the 9V input terminal of the emergency charging module, the power circuit and the signal conversion circuit, the output terminal of the splitter 2CH of the emergency charging module is electrically connected to the output circuit, the 3.3V output terminal of the power circuit is electrically connected to the input terminal of the charging control circuit and the signal conversion circuit to provide 3.3V voltage for the charging control circuit and the signal conversion circuit, the 43# and 44# pins of the MCU chip 5U1 of the charging control circuit are connected to the TEMPKEY and TMDUT5M ports of the emergency charging module, and the J2 and J5 ports of the fast charging function ports B1~B8 of the charging circuit are respectively connected to the MCU chip 5U1 The C_KEY1~C_KEY8 ports of the signal conversion circuit are connected to the charging interfaces S1~S16 of the charging circuit, the IN1 and IN2 interfaces of the multiplexers 6U1~6U8 of the signal circuit are respectively connected to the EN_1~EN_8 pins of the MCU chip 5U1, the output ends of the MOS tubes 8Q11~8Q18 of the charging circuit are electrically connected to the J3 ports of B1~B8 in the mobile power supply, and the charging control circuit is connected to the cloud server through the network module J1 communication; the model of the MCU chip 5U1 is STM32F103VET6; the model of the multiplexers 6U1~6U8 is TS5A623157.

[0007] In some implementations, fuses 1F1 and 1F2 and a capacitor 1C1 are connected in parallel between the input interface DC socket CON1 of the input circuit and the 9V output port.

[0008] In some embodiments, the inlet end of the three-terminal regulator 4U1 of the power supply circuit is connected to the 9V output port of the input circuit, and the outlet end of the three-terminal regulator 4U1 is connected to capacitors 4C2 and 4C3 and can output a 3.3V voltage; the model of the three-terminal regulator 4U1 is HT7533.

[0009] In some embodiments, the emergency charging module includes a DC converter 2U1 and a splitter 2CH, the IN port of the DC converter 2U1 is connected to a 9V external power port, and the output end of the DC converter 2U1 is connected to an inductor 2L1, capacitors 2C3 to 2C7, capacitors 2R2 to 2R7 and a splitter 2CH; the model of the DC converter 2U1 is EUP3284H.

[0010] In some embodiments, the splitter 2CH outputs 3 5V2A power supplies and is externally connected to the output circuit, the output circuit is a data line composed of 3 groups of different output ports, and the 3 groups of output ports are Type-C output interface, Mic 5Pin output interface and an Apple output interface.

[0011] In some embodiments, the charging control circuit includes a main control circuit, a data storage circuit and an oscillator circuit. The main control circuit is composed of an MCU chip 5U1 and external capacitors 5C6 to 5C16 and resistors 5R1 to 5R14. The data storage circuit includes a flash memory 5U3 and a resistor 5R6, a resistor 5R7 and a capacitor 5C9 electrically connected thereto. The oscillator circuit is composed of a capacitor 5C1, a capacitor 5C2, a crystal oscillator Y1 and a capacitor 5C3, a capacitor 5C4, and a crystal oscillator Y2.

[0012] Among them, the 30# pin of the MCU chip 5U1 is connected to the SCLK interface of the flash memory 5U3 in the data storage circuit, and the crystal oscillators Y1 and Y2 of the oscillation circuit are respectively connected to the 8#, 9#, 12# and 13# pins of the MCU chip; the model of the flash memory 5U3 is MX25L6433FM21~08G.

[0013] In some embodiments, the signal conversion circuit includes a signal circuit and an expansion circuit;

[0014] Among them, the two ends of the multi-way switches 6U1~6U8 are connected to common cathode diodes 6D1~6D16 and capacitors 6C1~6C8; the multi-way switches 6U9 and 6U10 of the expansion circuit are connected to resistors 6R1~6R9, one end of capacitors 6C9 and 6C10 is connected to a 3.3V working voltage, and the other end of the expansion circuit connected to capacitors 6C9 and 6C10 is grounded, and the A / B / C ports of the multi-way switches 6U9 and 6U10 are connected to 4051_A1~4051_A3 and 4061_A1~4061_A3 interfaces of the MCU chip 5U1.

[0015] In some embodiments, the charging circuit includes a main charging circuit and an electromagnet control circuit. The main charging circuit is composed of 8 8Q11~8Q18 MOS tubes connected to charging interfaces S1~S16, and the electromagnet control circuit is composed of 8Q21~8Q28 MOS tubes and their electrically connected transistors 8Q1, 8Q3, resistors 8R1, 8R3, 8R5, 8R7, 8R8 or transistors 8Q2, 8Q4, resistors 8R2, 8R4, 8R6, 8R9, 8R10. The mobile power supply is provided with B1~B8 ports with fast charging function, and the MOS tubes 8Q11~8Q18 of the main charging circuit are respectively connected to the J3 ports of the fast charging function ports B1~B8.

[0016] According to another aspect of the present invention, a control method for a shared charging system includes the following steps:

[0017] S1. The input circuit is connected to an external power supply, and the main control circuit reads data and detects the inventory number and power supply parameters of the mobile power supply;

[0018] S2. The charging circuit detects the voltage of all mobile power supplies and displays whether they are in a rentable state with an LED light;

[0019] S3. The main control circuit controls the charging circuit and charges the non-rental mobile power supply;

[0020] S4. The charging control circuit connects to the cloud server via the network module J1 in real time communication and uploads the inventory number and its power supply parameters.

[0021] In some embodiments, the method for renting a mobile power source comprises the following steps:

[0022] S21. The leasing operation is performed through the background software, and the cloud server issues a leasing instruction to the main control circuit through the network module J1;

[0023] S22. The main control circuit randomly disconnects the electromagnet control circuit of the mobile power source in the rentable state according to the rental instruction, pops open the rented mobile power source and records the rental time;

[0024] S23. The main control circuit uploads the number data of the rented mobile power supply and the rental time to the cloud server;

[0025] S24. When the rented mobile power source is reconnected to the main charging circuit, the electromagnet control circuit is powered again, and the main control circuit reads the serial number data and return time of the rented mobile power source and uploads them to the cloud server;

[0026] S25. The cloud server charges and deducts fees according to the number data, return time and rental time.

[0027] The invention provides a shared charging system and control method thereof, which has the advantages of charging a shared mobile power source through a shared charging device, and the shared charging device can quickly charge 8 mobile power sources at the same time. The input circuit is a DC socket, which supplies power to the shared charging device; the power supply circuit outputs a voltage of 3.3V, which provides a working voltage for the charging control circuit and the conversion circuit; the emergency charge provides 5 minutes of emergency charging for a mobile phone that has no power and has been turned off; the signal conversion circuit is a circuit that converts the data signal and the clock signal between the charging circuit and the charging control circuit; the charging control circuit controls the operation of the emergency charging circuit and the charging circuit; the charging circuit includes 8 charging output interfaces, which are independent charging interfaces, so that the device has the advantages of low standby power consumption, large charging current, and high charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A structural block diagram of a shared charging system according to an embodiment of the present invention;

[0029] Figure 2 A circuit diagram of an input circuit of a shared charging system according to an embodiment of the present invention;

[0030] Figure 3 A circuit diagram of a power supply circuit of a shared charging system according to an embodiment of the present invention;

[0031] Figure 4 A circuit diagram of an emergency charging module of a shared charging system according to an embodiment of the present invention;

[0032] Figure 5 A circuit diagram of a main control circuit of a shared charging system according to an embodiment of the present invention;

[0033] Figure 6 A circuit diagram of a data storage circuit of a shared charging system according to an embodiment of the present invention;

[0034] Figure 7 A circuit diagram of an oscillating circuit of a shared charging system according to an embodiment of the present invention;

[0035] Figure 8 A circuit diagram of a signal circuit of a shared charging system according to an embodiment of the present invention;

[0036] Fig. 9 A circuit diagram of an expansion circuit of a shared charging system according to an embodiment of the present invention;

[0037] Fig.10 A circuit diagram of a main charging circuit of a shared charging system according to an embodiment of the present invention;

[0038] Fig.11 A circuit diagram of an electromagnet control circuit of a shared charging system according to an embodiment of the present invention;

[0039] Fig.12 A flow chart of a control method of a shared charging system according to an embodiment of the present invention;

[0040] Fig.13 The present invention is a flowchart of a method for renting a shared charging system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] like Figure 1 As shown: A shared charging system according to the present invention includes an input circuit 1, an emergency charging module 2, an output circuit 3, a power circuit 4, a charging control circuit 5, a signal conversion circuit 6, a charging circuit 7, a mobile power supply 8 and a cloud server 9;

[0043] The input terminal DC socket CON1 of the input circuit 1 is electrically connected to the external power supply device, the 9V output terminal of the input circuit 1 is electrically connected to the 9V input terminal of the emergency charging module 2, the power circuit 4 and the signal conversion circuit 6, the output terminal of the splitter 2CH of the emergency charging module 2 is electrically connected to the output circuit 3, the 3.3V output terminal of the power circuit 4 is electrically connected to the input terminal of the charging control circuit 5 and the signal conversion circuit 6 to provide a 3.3V voltage for the charging control circuit 5 and the signal conversion circuit 6, the 43# and 44# pins of the MCU chip 5U1 of the charging control circuit 5 are connected to the TEMPKEY and TMDUT5M ports of the emergency charging module 2, and the fast charging function port of the charging circuit 8. The J2 and J5 ports of B1~B8 are respectively connected to the 23#, 97#, 40#, 87#, 45#, 70#, 59#, and 62# pins of the MCU chip 5U1, the C_KEY1~C_KEY8 ports of the signal conversion circuit 6 are connected to the charging interfaces S1~S16 of the charging circuit 8, the IN1 and IN2 interfaces of the multiplexers 6U1~6U8 of the signal conversion circuit 6 are respectively connected to the EN_1~EN_8 pins of the MCU chip 5U1, the output ends of the MOS tubes 8Q11~8Q18 of the charging circuit 7 are electrically connected to the J3 ports of B1~B8 in the mobile power supply 8, and the charging control circuit 5 is connected to the cloud server 9 through the network module J1 communication.

[0044] like Figure 2As shown, the input circuit 1 includes an input interface DC socket CON1, fuses 1F1, 1F2 and a filter capacitor 1C1. The DC socket CON1 is electrically connected to an external 9V power supply. The output of the DC socket CON1 is electrically connected to two fuses 1F1 and 1F2 in parallel. The output ends of 1F1 and 1F2 are electrically connected to the filter capacitor 1C1. The output end of 1C1 is the input end of the emergency charging module 2, the charging control circuit 5 and the power supply circuit 4.

[0045] like Figure 3 As shown, the model of the three-terminal voltage regulator 4U1 is HT7533, and the power supply circuit 4 includes the three-terminal voltage regulator 4U1 and its electrically connected peripheral capacitors 4C1, 4C2, and 4C3. One end of 4C1 is connected to the positive electrode of the 9V power supply and the input end 2# pin of the three-terminal voltage regulator 4U1, and the 1# pin of the three-terminal voltage regulator 4U1 is connected to the other end of the capacitor 4C1 and one end of the capacitors 4C2 and 4C3 and is grounded; the 3# pin of the three-terminal voltage regulator 4U1 is the 3.3V output end of 4U1, and is connected to the other end of the capacitors 4C2 and 4C3. The power supply circuit 4 provides a 3.3V working power supply for the control circuit 5 and the signal conversion circuit 6.

[0046] like Figure 4As shown, the model of DC converter 2U1 is EUP3284H, the emergency charging module 2 includes DC converter 2U1 and splitter 2CH, the DC / DC control circuit is composed of DC converter 2U1 and electrically connected capacitors 2C1, 2C2, 2C3, 2C4, 2C5, 2C6, 2C7, inductor 2L1, transistor 2Q1, resistors 2R1, 2R2, 2R3, 2R4, 2R5, 2R6, 2R7, capacitor 2C1 is the input filter capacitor of DC converter 2U1, one end of capacitor 2C1 is connected to 9V voltage, and the other end of 2C1 is connected to ground; capacitor 2C2 is the filter capacitor of the internal power supply of DC converter 2U1, one end of capacitor 2C2 is connected to pin 2# of DC converter 2U1; capacitor 2C4 and resistor 2R2 form a compensation circuit, capacitor 2C4 One end is grounded, the other end of capacitor 2C4 is electrically connected to one end of 2R2, and the other end of 2R2 is electrically connected to the 6# pin of DC converter 2U1; capacitor 2C3 is an independent circuit, one end is connected to the 1# pin of DC converter 2U1, and the other end is connected to the 3# pin of DC converter 2U1; inductor 2L1, capacitors 2C5 and 2C6 form a filter circuit, one end of inductor 2L1 is connected to the 3# pin of 2U1, and the other end is connected to the positive end of the emergency charging output voltage of 2R5, capacitors 2C5 and 2C6, and the other ends of capacitors 2C5 and 2C6 are grounded; resistors 2R5, 2R6 and 2R7 form a sampling circuit for the emergency charging output voltage, the other end of resistor 2R5 and one end of resistors 2R6 and 2R7 are connected to the 5# pin of DC converter 2U1, and the other ends of resistors 2R6 and 2R7 are grounded; Transistor 2Q1 and resistor 2R1 form the control circuit of DC converter 2U1. One end of resistor 2R1 is connected to 9V voltage, and the other end of resistor 2R1 is connected to pin 7# of DC converter 2U1 and connected to the collector of transistor 2Q1. The emitter of transistor 2Q1 is grounded, and the base of transistor 2Q1 is connected to pin 44# of MCU. Resistors 2R3, 2R4, and capacitor 2C7 form the acquisition circuit of emergency charge request signal. One end of resistor 2R3 is connected to 3.3V, and the other end is connected to the key KEY of junction box 2CH. One end of resistor 2R4 is connected to the key KEY of junction box 2CH, and the other end of resistor 2R4 is connected to pin 43# of MCU chip 5U1. One end of filter capacitor 2C7 is connected to pin 43# of MCU chip 5U1, and the other end of filter capacitor 2C7 is grounded. 2CH is a junction box. The junction box divides the output of emergency charge into 3 paths for emergency charge output wiring, and there is an emergency charge request key KEY on the junction box, and the other end of the key is grounded.

[0047] The output circuit 3 includes an output line with a Type-C output interface, a Mic 5Pin and an Apple output interface.

[0048] The control circuit 5 includes a main control circuit 51 composed of an MCU chip 5U1 and its electrically connected peripheral capacitors 5C7~5C19 and resistors 5R1~5R14, a data storage circuit 52 composed of a flash memory 5U3 and its peripheral components capacitor 5C5, resistor 5R14, and resistor 5R15, and an oscillation circuit 53 composed of capacitor 5C1, capacitor 5C2, crystal oscillator Y1 and capacitor 5C3, capacitor 5C4, and crystal oscillator Y2.

[0049] like Figure 5 As shown, in the main control circuit 51, the model of the MCU chip 5U1 is STM32F103VET6, the model of the flash memory 5U3 is MX25L6433FM21~08G, one end of the resistor 5R1 and the capacitor 5C12 are grounded, and the other end is connected to the 88# pin of the MCU chip 5U1 to form a reset circuit of the MCU chip 5U1, and the 88# pin is also connected to the 4# and 7# pins of the 4G or 5G network signal module; one end of the resistor 5R2 is connected to 3.3V, and the other end is connected to the 91# pin of the MCU chip 5U1, which plays a role in waking up the shared charging device that has entered the sleep state. ; One end of the resistor 5R3 is grounded, and the other end is connected to the 94# pin of the MCU chip 5U1, which is the working start pin of the MCU chip 5U1; one end of the resistor 5R4 is connected to the 90# pin of the MCU chip 5U1, and the other end is connected to the mobile power identification signal, which is connected to the 3# pin of the multi-way switch 6U10; one end of the resistor 5R5 is connected to the 93# pin of the MCU chip 5U1, and the other end is connected to the 10# pin of the multi-way switch 6U9 and the multi-way switch 6U10; one end of the resistor 5R6 is connected to the 77# pin of the MCU chip 5U1, and the other end is connected to the 9# pin of the multi-way switch 6U9 and the multi-way switch 6U10 One end of resistor 5R7, resistor 5R8, resistor 5R9, and resistor 5R10 is connected to 3.3V, one end of capacitor 5C6, capacitor 5C7, capacitor 5C8, and capacitor 5C9 is grounded, the other end of resistor 5R7 and the other end of capacitor 5C6 are connected and connected to the 79# pin of MCU chip 5U1, the other end of resistor 5R8 and the other end of capacitor 5C7 are connected and connected to the 78# pin of MCU chip 5U1, the other end of resistor 5R9 and the other end of capacitor 5C9 are connected and connected to the 96# pin of MCU chip 5U1, the other end of resistor 5R10 and the other end of capacitor 5C8 are connected and connected to the 96# pin of MCU chip 5U1, The ends are connected and connected to the 95# pin of the MCU chip 5U1; one ends of the resistors 5R11, 5R12 and 5R13 are connected and grounded, the other end of the resistor 5R11 is connected to the negative pole of the power indicator light 5LED1, the positive pole of 5LED1 is connected to the 67# pin of the MCU chip 5U1, the other end of the resistor 5R12 is connected to the negative pole of the login backend indicator light 5LED2, the positive pole of 5LED2 is connected to the 81# pin of the MCU chip 5U1, the other end of the resistor 5R13 is connected to the negative pole of the backend connection indicator light 5LED3, and the positive pole of 5LED3 is connected to the 66# pin of the MCU chip 5U1; Figure 5J1 is a 4G or 5G network signal module. Pin 1 of the network signal module J1 is connected to a 3.3V power supply. The capacitor 5C16 connected to it is a filter capacitor. The other end of the capacitor 5C16 is grounded. Pins 2# and 9# of the network signal module J1 are connected to pin 68# of the MCU chip 5U1. Pins 3# and 8# of the network signal module J1 are connected to pin 69# of the MCU chip 5U1. Pins 4# and 7# of the network signal module J1 are connected to pin 88# of the MCU chip 5U1. Pins 5# and 6# of the network signal module J1 are connected to ground.

[0050] like Figure 6 As shown, the capacitor 5C5 in the data storage circuit 52 is the power filter capacitor of the flash memory 5U3, one end of the capacitor 5C5 and one end of the resistor 5R14 are connected to the 8# pin of the flash memory 5U3 and connected to a 3.3V power supply, the other end of the capacitor 5C5 is grounded, the other end of the resistor 5R14 is connected to the 7# pin of the flash memory 5U3, the 6# pin of the flash memory 5U3 is connected to the 30# pin of the MCU chip 5U1, the 5# pin of the flash memory 5U3 is connected to the 32# pin of the MCU chip 5U1, the 4# pin of the flash memory 5U3 is grounded, one end of the resistor 5R15 is connected to 3.3V, the other end of the resistor 5R15 is connected to the 3# pin of the flash memory 5U3, the 2# pin of the flash memory 5U3 is connected to the 31# pin of the MCU chip 5U1, and the 1# pin of the flash memory 5U3 is connected to the 29# pin of the MCU chip 5U1.

[0051] like Figure 7 As shown, the model of the multi-way switches 6U1~6U8 is TS5A623157, the model of the multi-way switches 6U9 and 6U10 is CD4051, and the oscillation circuit 53 composed of capacitor 5C1, capacitor 5C2, crystal oscillator Y1 and capacitor 5C3, capacitor 5C4 and crystal oscillator Y2 has one end of capacitor 5C1, capacitor 5C2, capacitor 5C3 and capacitor 5C4 grounded, the other end of capacitor 5C1 and one end of crystal oscillator Y1 connected to pin 8# of MCU chip 5U1, the other end of capacitor 5C2 and the other end of crystal oscillator Y1 connected to pin 9# of MCU chip 5U1, the other end of capacitor 5C3 and one end of crystal oscillator Y2 connected to pin 12# of MCU chip 5U1, and the other end of capacitor 5C4 and the other end of crystal oscillator Y2 connected to pin 13# of MCU chip 5U1.

[0052] The signal conversion circuit 6 includes a signal conversion circuit 61 composed of multi-way switches 6U1~6U8 and their electrically connected peripheral components common cathode dual diodes 6D1~6D16 and capacitors 6C1~6C8, and an expansion circuit 62 composed of multi-way switches 6U9, 6U10 and their electrically connected peripheral components resistors 6R1~6R9, capacitors 6C9, 6C10.

[0053] like Figure 8As shown, capacitors 6C1 to 6C8 are filter capacitors of the working power supply of multi-way switches 6U1 to 6U8, one end of capacitors 6C1 to 6C8 is grounded, and the other end is connected to the 3.3V power supply and connected to the 8# pins of the multi-way switches 6U1 to 6U8, respectively. The cathodes of the common cathode dual diodes 6D1 to 6D16 are connected to the 3.3V power supply, and the two anodes of the common cathode dual diode 6D1 are connected to the 2# and 4# pins of the multi-way switch 6U1, respectively. The two anodes of the common cathode dual diode 6D2 are connected to the 6# and 10# pins of the multi-way switch 6U1, respectively. The two anodes of 6D1 are connected to the 2# and 4# pins of the multi-way switch 6U1 respectively, the two anodes of the common cathode dual diode 6D2 are connected to the 6# and 10# pins of the multi-way switch 6U1 respectively, the two anodes of the common cathode dual diode 6D3 are connected to the 2# and 4# pins of the multi-way switch 6U2 respectively, the two anodes of the common cathode dual diode 6D4 are connected to the 6# and 10# pins of the multi-way switch 6U2 respectively, the two anodes of the common cathode dual diode 6D5 are connected to the 2# and 4# pins of the multi-way switch 6U3 respectively, the two anodes of the common cathode dual diode 6D6 are connected to the 2# and 4# pins of the multi-way switch 6U3 respectively. The two anodes of the common cathode dual diode 6D7 are connected to the 2# and 4# pins of the multi-way switch 6U4 respectively, the two anodes of the common cathode dual diode 6D8 are connected to the 6# and 10# pins of the multi-way switch 6U4 respectively, the two anodes of the common cathode dual diode 6D9 are connected to the 2# and 4# pins of the multi-way switch 6U5 respectively, the two anodes of the common cathode dual diode 6D10 are connected to the 6# and 10# pins of the multi-way switch 6U5 respectively, the two anodes of the common cathode dual diode 6D11 are connected to the 2# and 4# pins of the multi-way switch 6U6 respectively, and the common cathode dual diode 6D10 is connected to the 6# and 10# pins of the multi-way switch 6U5 respectively. The two anodes of the diode 6D12 are connected to the 6# and 10# pins of the multi-way switch 6U6 respectively, the two anodes of the common cathode dual diode 6D13 are connected to the 2# and 4# pins of the multi-way switch 6U7 respectively, the two anodes of the common cathode dual diode 6D14 are connected to the 6# and 10# pins of the multi-way switch 6U7 respectively, the two anodes of the common cathode dual diode 6D15 are connected to the 2# and 4# pins of the multi-way switch 6U8 respectively, and the two anodes of the common cathode dual diode 6D16 are connected to the 6# and 10# pins of the multi-way switch 6U8 respectively. This is a circuit for converting data signals and clock signals into each other.

[0054] like Fig. 9As shown, the expansion circuit composed of the multi-way switches 6U9, 6U10 and the peripheral components electrically connected thereto, resistors 6R1~6R9, capacitors 6C9, 6C10, is a circuit for expanding the charging circuit from 3 ports to 8 ports for output. One end of the resistors 6R1~6R9, capacitors 6C9, 6C10 is connected to the 3.3V working voltage, and the other end of the capacitors 6C9, 6C10 is grounded. The capacitors 6C9, 6C10 are filter capacitors for the working voltage of the multi-way switches 6U9 and 6U10. The other ends of the resistors 6R1~6R5 are respectively connected to the 1#, 16#, 4#, 13#, 12# pins of the multi-way switch 6U9, and the other ends of the resistors 6R6~6R9 are respectively connected to the 1#, 4#, 13#, 12# pins of the multi-way switch 6U10.

[0055] The charging circuit 7 includes 8 identical main charging circuits 71 and an electromagnet control circuit 72. The main charging circuit 71 is composed of 8Q11-8Q18 MOS tubes and their control circuits; the electromagnet control circuit 72 includes a control circuit composed of 8Q21-8Q28 MOS tubes and their electrically connected peripheral components, and an electromagnet protection circuit composed of 8Q1, 8Q3, 8R1, 8R3, 8R5, 8R7, 8R8 and 8Q2, 8Q4, 8R2, 8R4, 8R6, 8R9, 8R10.

[0056] like Fig.10As shown, 8S1~8S16 in the main charging circuit 71 are detection switches of the external mobile power supply. The main charging circuit 71 has 8 charging ports with exactly the same circuits and components. The charging port where 8S1 and 8S2 are located is the first charging port, the charging port where 8S3 and 8S4 are located is the second charging port, the charging port where 8S5 and 8S6 are located is the third charging port, the charging port where 8S7 and 8S8 are located is the fourth charging port, the charging port where 8S9 and 8S10 are located is the fifth charging port, the charging port where 8S11 and 8S12 are located is the sixth charging port, the charging port where 8S13 and 8S14 are located is the seventh charging port, and the charging port where 8S15 and 8S16 are located is the eighth charging port. The working principle of the charging port where 8S1 and 8S2 are located is now explained in detail. One end of 8S1 and 8S2 is grounded, and the other end is connected to the 15# pin of the multi-way switch 6U9. The 3rd, 5th and 7th charging ports are connected to the 1#, 4# and 13# pins of the multi-way switch 6U9 respectively, and the 2nd, 4th, 6th and 8th charging ports are connected to the 4#, 1#, 13# and 15# pins of the multi-way switch 6U10 respectively; when the mobile power supply is inserted into the charging port, the 15# pin of the multi-way switch 6U9 is at a low voltage, the 37# pin of the MCU chip 5U1 sends a high level, the transistor 8Q21 is turned on, and 8Q11 outputs a 5V voltage for charging the external mobile power supply. When charging, the 25# pin of the MCU chip 5U1 sends a pulse signal, the blue light of 8LED1 flashes, when the battery voltage of the mobile power supply is lower than 3.8V, 8LED1 flashes quickly, when the battery voltage of the mobile power supply is higher than 3.8V, 8LED1 flashes slowly, and when the external mobile power supply battery is fully charged, the blue light of 8LED1 is always on.

[0057] Fig.10 The base of the middle transistor 8Q21 is connected to the 37# pin of the MCU chip 5U1, the emitter of the transistor 8Q21 is grounded, the collector is connected to one end of 8R21, the other end of 8R21 is connected to one end of 8R11 and connected to the 4# pin of the gate of the 8Q11MOS tube, the other end of 8R11 is connected to the 1# to 3# pins of the drain of the 8Q11MOS tube to a 5V voltage, and the 5# to 8# pins of the source of the 8Q11MOS tube output a 5V voltage, which can be used for charging an external mobile power supply.

[0058] like Fig.11As shown, when the 68# and 69# pins of the MCU chip 5U1 receive the lending signal of the multi-port mobile power supply with fast charging function, the 23# pin of the MCU chip 5U1 sends a high level, among which the 1, 2, 3, 4, 5, 6, 7, and 8 charging ports are connected to the 23#, 97#, 40#, 87#, 45#, 70#, 59#, and 62# pins of the MCU chip 5U1 respectively; the MOS tube 8Q21 is turned on, and the electromagnet coil 1SJ is energized. Then the 24# pin of the MCU chip 5U1 sends a high level, the triode 8Q3 is turned on, the MOS tube 8Q1 is turned on, the electromagnet slide bar retracts, and the mobile power supply pops out. One end of the resistor 8R51 in the circuit is connected to the 23# pin of the MCU chip 5U1, the other end of 8R51 is connected to one end of 8R41 and the gate of the MOS tube 8Q21, the other end of 8R41 and the drain of the MOS tube 8Q21 are grounded, 1SJ is the coil of the electromagnet, and the diode 8D1 It is the protection tube of MOS tube 8Q21. When MOS tube 8Q21 is turned off, 1SJ is discharged quickly to prevent MOS tube 8Q21 from being broken down and damaged. The anode of 8D1 is connected to the source of MOS tube 8Q21 and one end of 1SJ, and the cathode of 8D1 is connected to the other end of 1SJ and connected to 1SOL9V voltage; one end of 8R1 is connected to the 24# pin of MCU chip 5U1, and the other end of 8R1 is connected to one end of 8R7, 8R8 and the base of transistor 8Q3. The other end of 8R7 is connected to the emitter of transistor 8Q3 and grounded. The other end of 8R8 is connected to 1S 1SOL9V voltage is connected, the collector of 8Q3 is connected to the gate of MOS tube 8Q3 and one end of resistor 8R3, the other end of 8R3 is connected to the drain of MOS tube 8Q3 at 9V voltage, resistor 8R5 spans between 9V and 1SOL9V, and is the starting current limiting resistor of 1SJ, and the source of MOS tube 8Q3 is connected to 1SOL9V voltage; when 1SJ fails, 1SOL9V voltage drops, the base voltage of transistor 8Q3 drops, transistor 8Q3 is turned off, MOS tube 8Q3 is also turned off, and the electromagnet cannot work, thereby protecting the electromagnet from damage.

[0059] The multi-port mobile power supply 8 with fast charging function includes 8 multi-port shared power supplies with fast charging function. The MOS tubes 8Q11 to 8Q18 of the main charging circuit 71 are respectively connected to the J3 ports of the fast charging function ports B1 to B8.

[0060] like Fig.12 As shown, a control method for a shared charging system includes the following steps:

[0061] S1. The input circuit is connected to an external power supply, and the main control circuit 51 reads data and detects the inventory number and power supply parameters of the mobile power supply 8;

[0062] S2. The charging circuit 7 performs voltage detection on all mobile power supplies 8. If the voltage of the mobile power supply 8 is not less than 3.8V, it is in a rentable state, and the corresponding LED light is always on; if the voltage of the mobile power supply 8 is less than 3.8V, it is not rentable, and the corresponding LED light is always off;

[0063] S3. The main control circuit 51 controls the charging circuit 7 and charges the non-rental mobile power supply 8, and the corresponding LED light is in a flashing state during charging;

[0064] S4. The charging control circuit 5 connects to the cloud server 9 via the network module J1 in real time communication and uploads the inventory number and its power supply parameters.

[0065] like Fig.13 As shown, a method for renting a shared charging system includes the following steps:

[0066] S21. The leasing operation is performed through the background software, and the cloud server 9 issues a leasing instruction to the main control circuit 51 through the network module J1;

[0067] S22. The main control circuit 51 randomly disconnects the electromagnet control circuit 72 of the mobile power supply 8 in the rentable state according to the rental instruction and pops open the mobile power supply 8 and records the rental time;

[0068] S23. The main control circuit 51 uploads the number data and rental time of the rented mobile power supply 8 to the cloud server 9;

[0069] S24. When the rented mobile power supply 8 is reconnected to the main charging circuit 71, the electromagnet control circuit 72 is powered again, and the main control circuit 51 reads the serial number data and return time of the rented mobile power supply 8 and uploads it to the cloud server;

[0070] S25. The cloud server 9 receives the serial number data and the return time and rental time, and performs time statistics and cost statistics according to the program, and then performs fee deduction processing.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several similar modifications and improvements without departing from the creative concept of the present invention, and these are also considered to be within the scope of invention protection.

Claims

1. A shared charging system, characterized in that: include: An input circuit (1), an emergency charging module (2), an output circuit (3), a power supply circuit (4), a charging control circuit (5), a signal conversion circuit (6), a charging circuit (7), a mobile power supply (8) and a cloud server (9), wherein the emergency charging module (2) comprises a DC converter 2U1 and a splitter 2CH, wherein an IN port of the DC converter 2U1 is connected to a 9V external power supply port, an output end of the DC converter 2U1 is connected to an inductor 2L1, capacitors 2C3 to 2C7, resistors 2R2 to 2R7 and the splitter 2CH, and the model of the DC converter 2U1 is EUP3284H; the signal conversion circuit (6) comprises a signal circuit (61) and an expansion circuit (62), and the signal circuit ( 61) is composed of multi-way switches 6U1-6U8 and their electrically connected peripheral components common cathode dual diodes 6D1-6D16 and capacitors 6C1-6C8, the expansion circuit (62) is composed of multi-way switches 6U9, 6U10 and their electrically connected peripheral components resistors 6R1-6R9, capacitors 6C9, 6C10, the model of the multi-way switches 6U1-6U8 is TS5A623157, and the model of the multi-way switches 6U9, 6U10 is CD4051; the charging circuit (7) includes a main charging circuit (71) and an electromagnet control circuit (72), the main charging circuit (71) is composed of MOS tubes 8Q11-8Q18, fast charging function ports B1-B8 and a control circuit; The input end DC socket CON1 of the input circuit (1) is electrically connected to an external power supply device; the 9V output end of the input circuit (1) is electrically connected to the 9V input end of the emergency charging module (2), the power circuit (4) and the signal conversion circuit (6); the output end of the splitter 2CH of the emergency charging module (2) is electrically connected to the output circuit (3); the 3.3V output end of the power circuit (4) is electrically connected to the input end of the charging control circuit (5) and the signal conversion circuit (6) to provide a 3.3V voltage for the charging control circuit (5) and the signal conversion circuit (6); the 43# and 44# pins of the MCU chip 5U1 of the charging control circuit (5) are connected to the emergency charging module (2), the charging ports of the fast charging function ports B1 to B8 of the charging circuit (7) are respectively connected to the 23#, 97#, 40#, 87#, 45#, 70#, 59#, and 62# pins of the MCU chip 5U1, the signal conversion circuit (6) is connected to the charging interface of the charging circuit (7), the IN1 and IN2 interfaces of the multi-way switches 6U1 to 6U8 of the signal conversion circuit (6) are respectively connected to the EN_1 to EN_8 pins of the MCU chip 5U1, the output ends of the MOS tubes 8Q11 to 8Q18 of the charging circuit (7) are electrically connected to the fast charging function ports B1 to B8, and the charging control circuit (5) is connected to the cloud server (9) through network module communication; The model of the MCU chip 5U1 is STM32F103VET6.

2. A shared charging system according to claim 1, characterized in that: The input interface DC socket CON1 of the input circuit (1) and the 9V output port are connected in parallel with fuses 1F1, 1F2 and a capacitor 1C1.

3. A shared charging system according to claim 2, characterized in that: The inlet end of the three-terminal voltage regulator 4U1 of the power supply circuit (4) is connected to the 9V output port of the input circuit (1), and the outlet end of the three-terminal voltage regulator 4U1 is connected to capacitors 4C2 and 4C3 and can output a 3.3V voltage; The model of the three-terminal voltage regulator 4U1 is HT7533.

4. A shared charging system according to claim 1, characterized in that: The splitter 2CH outputs 3 5V2A power supplies and is externally connected to the output circuit (3), the output circuit (3) is a data line composed of 3 groups of different output ports, and the 3 groups of output ports are respectively a Type-C output interface, a Mic 5Pin output interface and an Apple output interface.

5. A shared charging system according to claim 1, characterized in that: The charging control circuit (5) comprises a main control circuit (51), a data storage circuit (52) and an oscillator circuit (53); the main control circuit (51) comprises an MCU chip 5U1 and external capacitors 5C6 to 5C16 and resistors 5R1 to 5R14; the data storage circuit (52) comprises a flash memory 5U3 and resistors 5R14, 5R15 and a capacitor 5C5 electrically connected thereto; and the oscillator circuit (53) comprises capacitors 5C1, 5C2 and a crystal oscillator Y1 and capacitors 5C3, 5C4 and a crystal oscillator Y2; The 30# pin of the MCU chip 5U1 is connected to the SCLK interface of the flash memory 5U3 in the data storage circuit (52), and the crystal oscillators Y1 and Y2 of the oscillation circuit (53) are respectively connected to the 8#, 9#, 12# and 13# pins of the MCU chip; The model of the flash memory 5U3 is MX25L6433FM21~08G.

6. A shared charging system according to claim 5, characterized in that: The two ends of the multi-way switches 6U1-6U8 are connected to common cathode diodes 6D1-6D16 and capacitors 6C1-6C8; the expansion circuit (62) is composed of multi-way switches 6U9, 6U10 and their electrically connected peripheral components resistors 6R1-6R9, capacitors 6C9, 6C10, one end of the resistors 6R1-6R9, capacitors 6C9, 6C10 is connected to a 3.3V working voltage, the other end of the capacitors 6C9, 6C10 is grounded, and the A / B / C ports of the multi-way switches 6U9, 6U10 are connected to the 4051_A1-4051_A3 and 4061_A1-4061_A3 interfaces of the MCU chip 5U1.

7. A shared charging system according to claim 5, characterized in that: The main charging circuit (71) is composed of eight MOS tubes 8Q11-8Q18 connected to charging interfaces S1-S16; the electromagnet control circuit (72) is composed of MOS tubes 8Q21-8Q28 and electrically connected triodes 8Q1, 8Q3, resistors 8R1, 8R3, 8R5, 8R7, 8R8 or triodes 8Q2, 8Q4, resistors 8R2, 8R4, 8R6, 8R9, 8R10; the mobile power supply (8) is provided with fast charging function ports B1-B8; the MOS tubes 8Q11-8Q18 of the main charging circuit (71) are respectively connected to the fast charging function ports B1-B8.

8. A control method using the system according to claim 7, characterized in that: The following steps are involved: S1. The input circuit is connected to an external power supply, and the main control circuit (51) reads data and detects the inventory number and power supply parameters of the mobile power supply (8); S2. The charging circuit (7) performs voltage detection on all mobile power supplies (8) and displays whether they are in a rentable state with an LED light; S3. The main control circuit (51) controls the charging circuit (7) and charges the non-rental mobile power supply (8); S4. The charging control circuit (5) is connected to the cloud server (9) via a network module in real-time communication and uploads the inventory number and its power supply parameters.

9. The control method according to claim 8, characterized in that: The method of renting a mobile power supply includes the following steps: S21. The leasing operation is performed through the background software, and the cloud server (9) issues a leasing instruction to the main control circuit (51) through the network module; S22. The main control circuit (51) randomly disconnects the electromagnet control circuit (72) of the mobile power source (8) in the rentable state according to the rental instruction, pops open the mobile power source (8) and records the rental time; S23. The main control circuit (51) uploads the serial number data of the rented mobile power supply (8) and the rental time to the cloud server (9); S24. When the rented mobile power source (8) is reconnected to the main charging circuit (71), the electromagnet control circuit (72) is powered again, and the main control circuit (51) reads the serial number data and return time of the rented mobile power source (8) and uploads them to the cloud server (9); S25. The cloud server (9) performs billing and deduction according to the serial number data and the return time and rental time.

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