Intelligent charging and discharging system

Abstract

The utility model discloses an intelligent charging and discharging system, and belongs to the technical field of charging and discharging. Comprising a main control module, the system comprises a temperature sensor module, a heat dissipation assembly, a first charging and discharging management module, a second charging and discharging management module, a third charging and discharging management module, an auxiliary power supply monitoring module, a touch screen module, a switch assembly, a data storage module, an external communication interface module, a fourth charging and discharging management module, an auxiliary power supply module and an external power supply module. A first constant-current constant-voltage output module, a second constant-current constant-voltage output module, a portable charger and an electronic load module; the storage battery can be charged and discharged, the charging and discharging working conditions of the storage battery can be automatically monitored, online monitoring maintenance and data recording, storage and transmission of charging and discharging of the storage battery can be achieved, and the single storage battery can be monitored. The anti-reverse connection charging control circuit can prevent the battery from being damaged by reverse connection, protect equipment from being damaged, and prevent safety accidents caused by current backflow.

Description

Technical Field

[0001] The utility model relates to the technical field of charging and discharging, in particular to an intelligent charging and discharging system. Background Art

[0002] With the continuous advancement of science and technology and the rapid development of power electronics technology, batteries, as important equipment for energy storage and power supply, have been widely used in various fields such as communications, electricity, and transportation. However, the traditional battery charging and discharging management methods have many shortcomings, such as the inability to monitor the working status of the battery in real time, the inability to effectively record and manage charging and discharging data, and the lack of accurate monitoring of battery cells. These problems seriously restrict the safe and efficient operation of batteries. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an intelligent charging and discharging system.

[0004] The purpose of the utility model is achieved through the following technical solutions: an intelligent charging and discharging system, including a main control module, the main control module is connected to a temperature sensor module, a heat dissipation component, a first charging and discharging management module, a second charging and discharging management module, a third charging and discharging management module, an auxiliary power supply monitoring module, a touch screen module, a switch component, a data storage module, an external communication interface module, and a fourth charging and discharging management module, the auxiliary power supply monitoring module is connected to the auxiliary power supply module and the external power supply module, the external power supply module is connected to a first constant current and constant voltage output module, a second constant current and constant voltage output module, and a portable charger, the first constant current and constant voltage output module is connected to the first charging and discharging management module, the second constant current and constant voltage output module is connected to the second charging and discharging management module, and the portable charger is connected to the third charging and discharging management module , the fourth charge and discharge management module is connected to the electronic load module; the first charge and discharge management module, the second charge and discharge management module, the third charge and discharge management module and the fourth charge and discharge management module are used to monitor the charge and discharge status of the intelligent charge and discharge system and perform overcharge protection, over-discharge protection and short-circuit protection; the heat dissipation component is used to dissipate heat for the monitoring intelligent charge and discharge system; the switch component is used to control the opening and closing of the monitoring intelligent charge and discharge system; the touch screen module is used to display and input information; the data storage module is used to store battery data information; the temperature sensor module is used to detect the temperature of the monitoring intelligent charge and discharge system; the external communication interface module is used for data interaction; the intelligent charge and discharge system is used to charge and discharge and monitor and maintain the battery, and record, store and transmit battery data information at the same time.

[0005] Preferably, the first constant current and constant voltage output module includes a constant current and constant voltage source, an anti-reverse charging control circuit and a power supply monitoring circuit; the constant current and constant voltage source is connected to the anti-reverse charging control circuit, and the anti-reverse charging control circuit is connected to the power supply monitoring circuit; the anti-reverse charging control circuit includes a single output power supply module, a first field effect transistor Q1, a first switch transistor QS1 and a thirteenth resistor R13; the -Vi end of the single output power supply module is connected to the gate of the first field effect transistor Q1, the +Vi end of the single output power supply module is connected to the source of the first field effect transistor Q1, the -Vo end of the single output power supply module is connected to a 5V power supply, and the +Vo end of the single output power supply module is connected to the collector of the first switch transistor QS1; the drain of the first field effect transistor Q1 is connected to the constant current and constant voltage source, and the source of the first field effect transistor Q1 is connected to the power supply monitoring circuit; the base of the first switch transistor QS1 is connected to the first end of the thirteenth resistor R13, and the emitter of the first switch transistor QS1 is connected to the ground GND; the second end of the thirteenth resistor R13 is connected to the main control module;

[0006] The power monitoring circuit includes a power monitoring chip and a seventh resistor R7; the ADR1 terminal and Vin terminal of the power monitoring chip are connected to the first end of the seventh resistor R7 and the anti-reverse charging control circuit, the ADR0 terminal and GND terminal of the power monitoring chip are connected to the ground GND, the ADIN terminal of the power monitoring chip is connected to a 5V power supply, the SCL terminal and SDA terminal of the power monitoring chip are connected to the main control module, the SENSE+ terminal of the power monitoring chip is connected to the first end of the seventh resistor R7, and the SENSE- terminal of the power monitoring chip is connected to the second end of the seventh resistor R7.

[0007] Preferably, it also includes a power monitoring module, the input end of the electronic load module is connected to the output end of the power monitoring module, and the electronic load module includes a first load subunit and a second load subunit connected in parallel; the first load subunit includes five field effect transistors connected in series; the second load subunit includes five field effect transistors connected in series.

[0008] Preferably, the power monitoring module includes a single-phase metering chip and a current transformer for monitoring the power consumption value of the electronic load module.

[0009] Preferably, the temperature sensor module is installed on the outer wall of the battery and is used to collect the temperature of the battery in real time; four pins of the temperature sensor module are connected to the main control module, two of which are power supply pins and the other two are communication pins.

[0010] Preferably, the data storage module includes a flash memory chip, the A0, A1, and A2 terminals of the flash memory chip are connected to the main control module, the VSS terminal of the flash memory chip is connected to a 3.3V power supply, and the VCC, WP, SCL, and SDA terminals of the flash memory chip are connected to ground GND.

[0011] Preferably, the external communication interface module includes a communication interface, a digital isolator, a first transistor, a second transistor, an eleventh resistor R11, a sixteenth resistor R16, a seventeenth resistor R17, a fifty-third capacitor C53, a fifty-fourth capacitor C54, a fifty-fifth capacitor C55, a fifty-sixth capacitor C56, a fifty-seventh capacitor C57 and a fifty-eighth capacitor C58; a first end of the communication interface is connected to the Tout end of the digital isolator, a second end of the communication interface is connected to the Rin end of the digital isolator, and a third end of the communication interface is connected to the earth ground wire EGND; the Viso end of the digital isolator is connected to the first ends of the fifty-third capacitor C53 and the fifty-fourth capacitor C54, the V+ end of the digital isolator is connected to the second end of the fifty-fourth capacitor C54, the C1+ end of the digital isolator is connected to the first end of the fifty-fifth capacitor C55, the C1- end of the digital isolator is connected to the second end of the fifty-fifth capacitor C55, the C2+ end of the digital isolator is connected to the first end of the fifty-seventh capacitor C57, and the C2- end of the digital isolator is connected to the fifty-seventh capacitor C5 7, the V-end of the digital isolator is connected to the first end of the fifty-eighth capacitor C58, the GNDiso end of the digital isolator is connected to the first end of the fifty-eighth capacitor C58 and the earth ground line EGND, the second end of the fifty-third capacitor C53 is connected to the earth ground line EGND, the VCC end of the digital isolator is connected to the 5V power supply and the first end of the fifty-sixth capacitor C56, the GND end of the digital isolator is connected to the second end of the fifty-sixth capacitor C56 and the ground GND, the Rout end of the digital isolator is connected to the first end of the seventeenth resistor R17, the Tin end of the digital isolator is connected to the first end of the eleventh resistor R11 and the collector of the first transistor; the second end of the eleventh resistor R11 is connected to the 5V power supply; the emitter of the first transistor is connected to the ground GND, the base of the first transistor is connected to the first end of the sixteenth resistor R16 and the collector of the second transistor; the second end of the sixteenth resistor R16 is connected to the 5V power supply; the emitter of the second transistor is connected to the ground GND, and the base of the second transistor is connected to the second end of the seventeenth resistor R17.

[0012] The beneficial effects of the utility model are:

[0013] 1) It can charge and discharge the battery, monitor the battery charging and discharging status autonomously, realize online monitoring and maintenance of battery charging and discharging, and record, store and transmit data, and monitor the battery cells.

[0014] 2) The anti-reverse charging control circuit can prevent reverse connection from damaging the battery, protect the equipment from damage, and prevent safety accidents caused by current backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the block diagram of the intelligent charging and discharging system;

[0016] Figure 2 To prevent reverse charging control circuit schematic;

[0017] Figure 3 This is the schematic diagram of the power monitoring circuit;

[0018] Figure 4 This is the circuit schematic diagram of the constant current and constant voltage output module;

[0019] Figure 5 This is the circuit schematic diagram of the electronic load module;

[0020] Figure 6 This is the circuit schematic diagram of the power monitoring module;

[0021] Figure 7 The schematic diagram of the temperature sensor module circuit

[0022] Figure 8 It is the circuit schematic diagram of the data storage module;

[0023] Fig. 9 This is the circuit schematic diagram of the external communication interface module. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] The intelligent charging and discharging system of the utility model adopts (220 V ± 15%) / (50 Hz ± 4%) power supply, can charge and discharge the aviation battery, can independently monitor the charging and discharging working conditions of the aviation battery, realize the online monitoring and maintenance of the charging and discharging of the aviation battery and the data recording, storage and transmission, and can monitor the aviation battery monomer; and can output (220V ± 15%) / (50Hz ± 4%) (1 16A three-hole socket) auxiliary power for emergency use.

[0026] See also Figure 1-Figure 9The utility model provides an intelligent charging and discharging system, including a main control module, the main control module is connected to a temperature sensor module, a heat dissipation component, a first charging and discharging management module, a second charging and discharging management module, a third charging and discharging management module, an auxiliary power supply monitoring module, a touch screen module, a switch component, a data storage module, an external communication interface module, and a fourth charging and discharging management module. The auxiliary power supply monitoring module is connected to the auxiliary power supply module and the external power supply module. The external power supply module is connected to a first constant current and constant voltage output module, a second constant current and constant voltage output module, and a portable charger. The first constant current and constant voltage output module is connected to the first charging and discharging management module, the second constant current and constant voltage output module is connected to the second charging and discharging management module, the portable charger is connected to the third charging and discharging management module, and the fourth charging and discharging The power management module is connected to the electronic load module; the first charge and discharge management module, the second charge and discharge management module, the third charge and discharge management module and the fourth charge and discharge management module are used to monitor the charge and discharge status of the intelligent charge and discharge system and perform overcharge protection, over-discharge protection and short-circuit protection; the heat dissipation component is used to dissipate heat for the monitoring intelligent charge and discharge system; the switch component is used to control the opening and closing of the monitoring intelligent charge and discharge system; the touch screen module is used to display and input information; the data storage module is used to store battery data information; the temperature sensor module is used to detect the temperature of the monitoring intelligent charge and discharge system; the external communication interface module is used for data interaction; the intelligent charge and discharge system is used to charge and discharge and monitor and maintain the battery, and at the same time record, store and transmit battery data information.

[0027] In this embodiment, the auxiliary power supply module outputs (220V±15%) / (50Hz±4%) auxiliary power supply, which is generated by the battery pack inverter, and the current can output up to 16A; the constant current and constant voltage output module has two built-in structures with the same structure, charging voltage: 12V~60V, continuously adjustable; charging current: 1A~50A, continuously adjustable; voltage accuracy: 0.5% (FS); current measurement resolution: 0.1A; electronic load module 12V~60V, continuously adjustable; discharge current: 1A~50A, continuously adjustable; voltage accuracy: 0.5% (FS); current measurement resolution: 0.1A; electronic load module 12V~60V, continuously adjustable; discharge current: 1A~50A, continuously adjustable; voltage accuracy: 0.5% (FS); current measurement resolution: 0.1A Resolution: 0.1A; Discharge timing range: 0~99h59min; Portable charger: Power supply: (220V±15%) / (50Hz±4%); Charging voltage: 12V~60V; Charging current: 0A~120A; Charging time: no more than 6h; Rechargeable battery temperature rise: no more than 15℃ (outer wall of battery); Charging mode: Intelligent adaptive (no manual intervention in the charger during the whole process before, during and after charging); The charging, discharging and detection of aviation batteries can be operated on the screen to realize automatic testing and record and store battery data. The touch screen module is mainly used to display battery parameter information and select charging mode. The display screen uses a 7-inch wide temperature capacitive serial port LCD screen, model: OCM800480T700-3C. The main features of the product are as follows: true color RGB display; support the highest resolution of 1200*600; working temperature: -40℃~+85℃; storage temperature: -40℃~+85℃; working power supply: 5V~15V; communication mode: serial port; baud rate: 19200bps. The main control module is used to process and control the data between modules. The microprocessor chip adopts the STM32F103VCT6 with ARM core. It adopts the ARM Cortex-M3 structure of STMicroelectronics, a large-capacity microcontroller with 128K flash memory, the internal clock frequency of the chip reaches 72M, 5 serial ports are integrated internally, there are many integrated software libraries such as FFT, DSP, etc., and the internal integrated floating-point operation function can quickly complete the filtering of various input complex potentiometer voltage divider parameters, and quickly calculate and display data in real time. The working voltage is 2V~3.6V, and the working temperature range is -40℃~+85℃. According to system analysis, the equipment needs to pass through isolated ±12V and ±5V power supplies. The switching power supply is Mingwei's RS-25-24, with an input voltage range of 88~264VAC, an input frequency range of 10Hz~500Hz, an output DC 24V, an operating temperature of -25℃~70℃, and a size of 78mm×51mm×28mm. It outputs ±12V and ±5V through VRA2412D-20W and WRB2405S-3W for internal use of the equipment.The auxiliary power supply converts the input (220 V ± 15%) / (50Hz ± 4%) power into a 16A three-hole socket. In order to ensure the safety of electricity use, a special power safety protection circuit is designed. When the current is greater than 16A or leakage electric shock occurs, the auxiliary power supply is automatically disconnected. The opening and closing of the auxiliary power supply needs to be operated through the screen. The panel socket selects the Bull G07Z104, which is a three-hole 16A socket. The AC contactor selects Chint NXC-16-220V, which is 220V / 16A, with an operating temperature range of -35℃~70℃, in line with GB / T14048.1 standard. Connect the two AC transformers to the 220V neutral line and live line respectively, connect the same-name ends of the AC transformers together and ground them. When the currents of AC transformer 1 and AC transformer 2 are inconsistent, the optocoupler (TLP series bidirectional conduction optocoupler) is turned on, PC06 is pulled low, and the AC contactor is powered off.

[0028] In some embodiments, the first constant current and constant voltage output module includes a constant current and constant voltage source, an anti-reverse charging control circuit and a power monitoring circuit; the constant current and constant voltage source is connected to the anti-reverse charging control circuit, and the anti-reverse charging control circuit is connected to the power monitoring circuit; the anti-reverse charging control circuit includes a single output power module, a first field effect transistor Q1, a first switch transistor QS1 and a thirteenth resistor R13; the -Vi end of the single output power module is connected to the gate of the first field effect transistor Q1, the +Vi end of the single output power module is connected to the source of the first field effect transistor Q1, the -Vo end of the single output power module is connected to a 5V power supply, and the +Vo end of the single output power module is connected to the collector of the first switch transistor QS1; the drain of the first field effect transistor Q1 is connected to the constant current and constant voltage source, and the source of the first field effect transistor Q1 is connected to the power monitoring circuit; the base of the first switch transistor QS1 is connected to the first end of the thirteenth resistor R13, and the emitter of the first switch transistor QS1 is connected to the ground GND; the second end of the thirteenth resistor R13 is connected to the main control module;

[0029] The power monitoring circuit includes a power monitoring chip and a seventh resistor R7; the ADR1 terminal and Vin terminal of the power monitoring chip are connected to the first end of the seventh resistor R7 and the anti-reverse charging control circuit, the ADR0 terminal and GND terminal of the power monitoring chip are connected to the ground GND, the ADIN terminal of the power monitoring chip is connected to a 5V power supply, the SCL terminal and SDA terminal of the power monitoring chip are connected to the main control module, the SENSE+ terminal of the power monitoring chip is connected to the first end of the seventh resistor R7, and the SENSE- terminal of the power monitoring chip is connected to the second end of the seventh resistor R7.

[0030] In this embodiment, the constant current and constant voltage source adopts Mingwei switching power supply S-3000-60V, input power supply 180V~264VAV, 50Hz±5%, output DC voltage 11V~61V continuously adjustable, output current 1A~50A continuously adjustable, maximum output power 3KW, working temperature -20℃~70℃, size 278mm×177.8mm×63.5mm, the constant current and constant voltage source controls its output voltage and current value through the main control module, after passing through the power supply monitoring and power calculation circuit, the main control module monitors the voltage and current in real time, and realizes the closed-loop control of voltage and current. The anti-reverse charging control circuit is composed of 2 pieces (1 piece for work and the other piece for redundant backup) field effect tube IRFB4227 output to the device connector assembly, which can prevent the reverse connection from damaging the battery and protecting the device from damage, and prevent the current from backflow causing safety accidents. The maximum continuous drain current of IRFB4227 is 200A, and the maximum voltage is 65V. Because a lot of heat is generated during operation, a heat sink needs to be installed on the chip. The main control chip can control the charging mode such as pulse charging, floating charging, etc. by controlling the on and off time of IRFB4227. The power monitoring chip model is LTC4151, which is used to monitor the current and voltage flowing into the aviation battery, and calculate its capacity by the charging completion time. The main control device reads the chip information and displays it and stores it in the data storage module. The LTC4151 monitors the voltage range of 7V~80V, and the acquisition part is a 12-bit ADC acquisition. Data is transmitted through the bus I2C. The current acquisition is collected through a precise low-temperature drift resistor. Through actual verification, the voltage acquisition accuracy is 0.5% (FS), the current acquisition accuracy is 0.5% (FS), and the voltage and current acquisition both display two decimal places, and the current resolution is 0.01A. When charging, when the current changes from 0.0A to the set value, and the voltage is also the set value, the power chip starts to work and records the charging data; the charging program can also be customized.

[0031] In some embodiments, a power monitoring module is also included, the input end of the electronic load module is connected to the output end of the power monitoring module, and the electronic load module includes a first load subunit and a second load subunit connected in parallel; the first load subunit includes five field effect transistors connected in series; the second load subunit includes five field effect transistors connected in series.

[0032] In this embodiment, the electronic load adopts a self-developed design, the input voltage is the output end of the power monitoring module, and the current is set by the main control module. When the voltage and current are given, the main control module distributes the power to a total of 10 IXFH46N65X2 field effect tubes to achieve current setting. The main power consumption device of the electronic load consists of 10 IXFH46N65X2, and the field effect tubes are connected in parallel after 5 series connection. The maximum input voltage of the IXFH46N65X2 field effect tube is 650V, the maximum drain current is 46A, and the on-resistance is 69mΩ. The 10 field effect tubes work at the same time, and the on-off time is controlled by the main control module to achieve programmable power of 12W~3000W. The programmable adjustment method is to output a 1kHz PWM wave to the I / O port of the single-chip microcomputer on the main control board, and control the duty cycle of the PWM wave through the single-chip microcomputer timer. The power output of 12W~3000W is achieved through different duty cycles. The output voltage of the microcontroller I / O port is 3.3V. The I / O port signal controls an S8050 transistor. After the transistor is turned on, it supplies power to the isolated power supply and then outputs an isolated 5V signal to drive the field effect tube to turn on and off.

[0033] In some embodiments, the power monitoring module includes a single-phase metering chip and a current transformer for monitoring the power consumption value of the electronic load module.

[0034] In this embodiment, the power monitoring module monitors the power consumption of the electronic load in real time, monitors the power value consumed by the electronic load through the RN8207C and the current transformer, and measures whether the power consumption of the electronic load is within the set value, thereby realizing power closed-loop control.

[0035] In some embodiments, the temperature sensor module is installed on the outer wall of the battery to collect the temperature of the battery in real time; four pins of the temperature sensor module are connected to the main control module, two of which are power supply pins and the other two are communication pins.

[0036] In this embodiment, the temperature sensor is STS30-DIS-2.5kS, with an operating voltage of 2.4V~5.5V, a measurement error of ±0.3℃ when measuring temperatures of -40℃~90℃, and an I2C bus for communication. The temperature sensor can be adsorbed on the outer wall of the battery through a suction cup and fits tightly to the outer wall. An initial temperature will be collected at the beginning of charging and discharging. If the temperature exceeds the system preset value during discharge, the system will automatically reduce the discharge power, and automatically increase the discharge power after the temperature drops. If the temperature exceeds the system preset value during charging, the system will automatically reduce the charging power, and automatically increase the charging power after the temperature drops. The preset values ​​of the temperature difference during charging and discharging can be customized. The temperature sensor module is connected to the host through 4 wires, two power supply lines, and two communication buses.

[0037] In some embodiments, the data storage module includes a flash memory chip, the A0, A1, and A2 terminals of the flash memory chip are connected to the main control module, the VSS terminal of the flash memory chip is connected to a 3.3V power supply, and the VCC, WP, SCL, and SDA terminals of the flash memory chip are connected to ground GND.

[0038] In this embodiment, the storage chip selects AT24CM01 flash memory chip with a memory of 1Mbit for storing charging information. The charging information can be read to other devices through the RS-232 interface on the panel.

[0039] In some embodiments, the external communication interface module includes a communication interface, a digital isolator, a first transistor, a second transistor, an eleventh resistor R11, a sixteenth resistor R16, a seventeenth resistor R17, a fifty-third capacitor C53, a fifty-fourth capacitor C54, a fifty-fifth capacitor C55, a fifty-sixth capacitor C56, a fifty-seventh capacitor C57 and a fifty-eighth capacitor C58; the first end of the communication interface is connected to the Tout end of the digital isolator, the second end of the communication interface is connected to the Rin end of the digital isolator, and the third end of the communication interface is connected to the earth ground EGND; the Viso end of the digital isolator is connected to the first end of the fifty-third capacitor C53 and the fifty-fourth capacitor C54, the V+ end of the digital isolator is connected to the second end of the fifty-fourth capacitor C54, the C1+ end of the digital isolator is connected to the first end of the fifty-fifth capacitor C55, the C1- end of the digital isolator is connected to the second end of the fifty-fifth capacitor C55, the C2+ end of the digital isolator is connected to the first end of the fifty-seventh capacitor C57, and the C2- end of the digital isolator is connected to the fifty-seventh capacitor C57. The second end of C57, the V-end of the digital isolator is connected to the first end of the fifty-eighth capacitor C58, the GNDiso end of the digital isolator is connected to the first end of the fifty-eighth capacitor C58 and the earth ground line EGND, the second end of the fifty-third capacitor C53 is connected to the earth ground line EGND, the VCC end of the digital isolator is connected to the 5V power supply and the first end of the fifty-sixth capacitor C56, the GND end of the digital isolator is connected to the second end of the fifty-sixth capacitor C56 and the ground GND, the Rout end of the digital isolator is connected to the first end of the seventeenth resistor R17, the Tin end of the digital isolator is connected to the first end of the eleventh resistor R11 and the collector of the first transistor; the second end of the eleventh resistor R11 is connected to the 5V power supply; the emitter of the first transistor is connected to the ground GND, the base of the first transistor is connected to the first end of the sixteenth resistor R16 and the collector of the second transistor; the second end of the sixteenth resistor R16 is connected to the 5V power supply; the emitter of the second transistor is connected to the ground GND, and the base of the second transistor is connected to the second end of the seventeenth resistor R17.

[0040] In this embodiment, the communication interface uses RS-232, baud rate 115200, 8-bit data, 1 stop bit, and the battery pack information (including but not limited to battery pack temperature, capacity, voltage, internal resistance, single cell voltage, etc.) can be read through the external communication interface module.

[0041] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An intelligent charging and discharging system, characterized in that: The main control module includes a temperature sensor module, a heat dissipation component, a first charge and discharge management module, a second charge and discharge management module, a third charge and discharge management module, an auxiliary power supply monitoring module, a touch screen module, a switch component, a data storage module, an external communication interface module, and a fourth charge and discharge management module. The auxiliary power supply monitoring module is connected to the auxiliary power supply module and the external power supply module. The external power supply module is connected to the first constant current and constant voltage output module, the second constant current and constant voltage output module, and the portable charger. The first constant current and constant voltage output module is connected to the first charge and discharge management module, the second constant current and constant voltage output module is connected to the second charge and discharge management module, the portable charger is connected to the third charge and discharge management module, and the fourth charge and discharge management module is connected to the electronic Load module; the first charge and discharge management module, the second charge and discharge management module, the third charge and discharge management module and the fourth charge and discharge management module are used to monitor the charge and discharge status of the intelligent charge and discharge system and perform overcharge protection, over-discharge protection and short-circuit protection; the heat dissipation component is used to dissipate heat for the monitoring intelligent charge and discharge system; the switch component is used to control the opening and closing of the monitoring intelligent charge and discharge system; the touch screen module is used to display and input information; the data storage module is used to store battery data information; the temperature sensor module is used to detect the temperature of the monitoring intelligent charge and discharge system; the external communication interface module is used for data interaction; the intelligent charge and discharge system is used to charge and discharge and monitor and maintain the battery, and at the same time record, store and transmit battery data information.

2. The intelligent charging and discharging system according to claim 1, characterized in that: The first constant current and constant voltage output module includes a constant current and constant voltage source, an anti-reverse charging control circuit and a power supply monitoring circuit; the constant current and constant voltage source is connected to the anti-reverse charging control circuit, and the anti-reverse charging control circuit is connected to the power supply monitoring circuit; the anti-reverse charging control circuit includes a single output power supply module, a first field effect transistor Q1, a first switch transistor QS1 and a thirteenth resistor R13; the -Vi end of the single output power supply module is connected to the gate of the first field effect transistor Q1, the +Vi end of the single output power supply module is connected to the source of the first field effect transistor Q1, the -Vo end of the single output power supply module is connected to a 5V power supply, and the +Vo end of the single output power supply module is connected to the collector of the first switch transistor QS1; the drain of the first field effect transistor Q1 is connected to the constant current and constant voltage source, and the source of the first field effect transistor Q1 is connected to the power supply monitoring circuit; the base of the first switch transistor QS1 is connected to the first end of the thirteenth resistor R13, and the emitter of the first switch transistor QS1 is connected to the ground GND; the second end of the thirteenth resistor R13 is connected to the main control module; The power monitoring circuit includes a power monitoring chip and a seventh resistor R7; the ADR1 terminal and Vin terminal of the power monitoring chip are connected to the first end of the seventh resistor R7 and the anti-reverse charging control circuit, the ADR0 terminal and GND terminal of the power monitoring chip are connected to the ground GND, the ADIN terminal of the power monitoring chip is connected to a 5V power supply, the SCL terminal and SDA terminal of the power monitoring chip are connected to the main control module, the SENSE+ terminal of the power monitoring chip is connected to the first end of the seventh resistor R7, and the SENSE- terminal of the power monitoring chip is connected to the second end of the seventh resistor R7.

3. The intelligent charging and discharging system according to claim 1, characterized in that: It also includes a power monitoring module, the input end of the electronic load module is connected to the output end of the power monitoring module, and the electronic load module includes a first load subunit and a second load subunit connected in parallel; the first load subunit includes five field effect transistors connected in series; the second load subunit includes five field effect transistors connected in series.

4. The intelligent charging and discharging system according to claim 3, characterized in that: The power monitoring module includes a single-phase metering chip and a current transformer for monitoring the power consumption value of the electronic load module.

5. The intelligent charging and discharging system according to claim 1, characterized in that: The temperature sensor module is installed on the outer wall of the battery and is used to collect the temperature of the battery in real time; four pins of the temperature sensor module are connected to the main control module, two of which are power supply pins and the other two are communication pins.

6. The intelligent charging and discharging system according to claim 1, characterized in that: The data storage module includes a flash memory chip, the A0, A1, and A2 terminals of the flash memory chip are connected to the main control module, the VSS terminal of the flash memory chip is connected to a 3.3V power supply, and the VCC, WP, SCL, and SDA terminals of the flash memory chip are connected to ground GND.

7. The intelligent charging and discharging system according to claim 1, characterized in that: The external communication interface module includes a communication interface, a digital isolator, a first transistor, a second transistor, an eleventh resistor R11, a sixteenth resistor R16, a seventeenth resistor R17, a fifty-third capacitor C53, a fifty-fourth capacitor C54, a fifty-fifth capacitor C55, a fifty-sixth capacitor C56, a fifty-seventh capacitor C57 and a fifty-eighth capacitor C58; the first end of the communication interface is connected to the Tout end of the digital isolator, the second end of the communication interface is connected to the Rin end of the digital isolator, and the third end of the communication interface is connected to the earth ground wire EGND; the Viso end of the digital isolator is connected to the first end of the fifty-third capacitor C53 and the fifty-fourth capacitor C54, the V+ end of the digital isolator is connected to the second end of the fifty-fourth capacitor C54, the C1+ end of the digital isolator is connected to the first end of the fifty-fifth capacitor C55, the C1- end of the digital isolator is connected to the second end of the fifty-fifth capacitor C55, the C2+ end of the digital isolator is connected to the first end of the fifty-seventh capacitor C57, and the C2- end of the digital isolator is connected to the The second end, the V-end of the digital isolator is connected to the first end of the fifty-eighth capacitor C58, the GNDiso end of the digital isolator is connected to the first end of the fifty-eighth capacitor C58 and the earth ground line EGND, the second end of the fifty-third capacitor C53 is connected to the earth ground line EGND, the VCC end of the digital isolator is connected to the 5V power supply and the first end of the fifty-sixth capacitor C56, the GND end of the digital isolator is connected to the second end of the fifty-sixth capacitor C56 and the ground GND, the Rout end of the digital isolator is connected to the first end of the seventeenth resistor R17, the Tin end of the digital isolator is connected to the first end of the eleventh resistor R11 and the collector of the first transistor; the second end of the eleventh resistor R11 is connected to the 5V power supply; the emitter of the first transistor is connected to the ground GND, the base of the first transistor is connected to the first end of the sixteenth resistor R16 and the collector of the second transistor; the second end of the sixteenth resistor R16 is connected to the 5V power supply; the emitter of the second transistor is connected to the ground GND, and the base of the second transistor is connected to the second end of the seventeenth resistor R17.

Images