WO2019218720A1 - Battery monitoring and management system - Google Patents

Battery monitoring and management system Download PDF

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Publication number
WO2019218720A1
WO2019218720A1 PCT/CN2019/072526 CN2019072526W WO2019218720A1 WO 2019218720 A1 WO2019218720 A1 WO 2019218720A1 CN 2019072526 W CN2019072526 W CN 2019072526W WO 2019218720 A1 WO2019218720 A1 WO 2019218720A1
Authority
WO
WIPO (PCT)
Prior art keywords
resistor
mos transistor
gate
battery
discharge
Prior art date
Application number
PCT/CN2019/072526
Other languages
French (fr)
Chinese (zh)
Inventor
黄兵
张锦兵
郑云华
Original Assignee
深圳市拓邦锂电池有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市拓邦锂电池有限公司 filed Critical 深圳市拓邦锂电池有限公司
Publication of WO2019218720A1 publication Critical patent/WO2019218720A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J7/0026—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to the field of batteries, and more particularly to a battery monitoring management system.
  • lithium batteries have become the main application of the battery industry.
  • the quality of the lithium battery directly affects the quality of the entire power supply system and work efficiency. Therefore, the monitoring of the real-time working state and performance of the lithium battery has become an inevitable demand.
  • the real-time working status and performance monitoring of lithium batteries generally achieve remote data transmission and reception through Bluetooth, and the Bluetooth monitoring scheme has many problems.
  • the information is unstable and cannot be accurately known.
  • the real-time working state and performance of the lithium battery therefore, can not be processed in time, which may lead to the performance degradation or damage of the lithium battery, affecting the overall performance and efficiency of the power supply system, or even shorten the life of the lithium battery;
  • the factors that need to temporarily control the output of the battery pack are not realized, which reduces the interaction performance of the battery, and can not truly realize the monitoring and management of the lithium battery.
  • the technical problem to be solved by the present invention is to provide a battery monitoring management system for the above-mentioned drawbacks of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing a battery monitoring and management system, comprising:
  • each of the battery unit units includes a wireless communication module for transmitting current state information and warning information of the battery unit, and receiving control information delivered by the cloud server;
  • the cloud server is respectively connected to the plurality of battery unit units for receiving and storing current state information and early warning information sent by the wireless communication module, and delivering the control information to the cloud of the plurality of battery unit units. server;
  • the wireless communication module comprises a 2G wireless communication module, a 3G wireless communication module, a 4G wireless communication module, a 5G wireless communication module or a WIFI wireless communication module.
  • each of the battery unit further comprises:
  • a battery pack for providing electrical energy
  • a controller connected to the battery pack for collecting current state information of the battery pack and processing the current state information, and outputting early warning information according to the processing result;
  • the controller is further configured to receive, by the wireless communication module, control information delivered by the cloud server, and output a control instruction according to the control information.
  • each of the battery unit further comprises:
  • each of the battery unit further comprises:
  • a current sampling circuit for connecting the current sampling pin of the controller and connected to the current value sampling pin of the controller for collecting the current of the battery.
  • each of the battery unit further includes: a discharge MOS transistor MD and a discharge MOS control circuit;
  • a source of the discharge MOS transistor MD is connected to a negative terminal of the battery pack through the current sampling resistor, and a drain of the discharge MOS transistor MD is connected to a negative terminal of the battery unit, the discharge MOS transistor MD A gate is coupled to the discharge MOS control pin of the controller through the discharge MOS control circuit.
  • the discharge MOS control circuit comprises: a resistor R1, a MOS transistor Q1, a resistor R2, a diode D1, a resistor R3, a resistor R4, a resistor R5, a MOS transistor Q2, a Zener diode Z1, a resistor R6, a resistor RD, and a MOS transistor.
  • the first end of the resistor R1 is connected to the source of the MOS transistor Q1 and connected to the driving voltage VGS, and the second end of the resistor R1 is respectively connected to the gate of the MOS transistor Q1 and the first of the resistor R2
  • the second end of the resistor R2 is connected to the gate of the MOS transistor Q2 through the resistor R3; the drain of the MOS transistor Q1 is connected to the anode of the diode D1, and the cathode of the diode D1 is connected to the cathode a first end of the resistor R4, a second end of the resistor R4 is respectively connected to a first end of the resistor R5 and a drain of the MOS transistor Q2, and a source of the MOS transistor Q2 is connected to the discharge MOS transistor MD Source
  • the second end of the resistor R5 is connected to the gate of the discharge MOS transistor MD, the cathode of the Zener Z1 is connected to the gate of the discharge MOS transistor MD, and the anode of the Zener diode Z1 is connected to the discharge MOS.
  • a source of the tube MD a first end of the resistor R6, a gate of the discharge MOS transistor MD, a second end of the resistor R6 connected to a source of the discharge MOS transistor MD;
  • the resistor RD is connected in series Between the second end of the resistor R5 and the gate of the discharge MOS transistor MD;
  • a drain of the MOS transistor Q3 is connected to a connection node of the resistor R2 and the resistor R3, a source of the MOS transistor Q3 is grounded, and a gate of the MOS transistor Q3 is connected to a drain of the MOS transistor Q4.
  • the gate of the MOS transistor Q3 is also grounded through the resistor R7; the source of the MOS transistor Q4 is grounded, the gate of the MOS transistor Q4 is grounded through the resistor R9, the gate of the MOS transistor Q3 and the
  • the connection node of the drain of the MOS transistor Q4 is also connected to the discharge MOS control pin of the controller.
  • each of the battery unit further includes: a charging MOS transistor MC and a charging MOS control circuit;
  • the drain of the charging MOS transistor MC is connected to the drain of the discharge MOS transistor MD, the source of the charging MOS transistor MC is connected to the negative terminal of the battery unit, and the gate of the charging MOS transistor MC is connected.
  • the charge control circuit is coupled to a charge MOS control pin of the controller.
  • the charging MOS control circuit comprises: resistor R10, resistor R11, MOS transistor Q6, resistor R12, MOS transistor Q5, diode D2, diode D3, resistor R13, resistor R14, transistor Q7, resistor R15, resistor R16, resistor R17, voltage regulator tube Z2, and resistor RC;
  • the first end of the resistor R10 is connected to the driving voltage VGS, the second end of the resistor R10 is connected to the gate of the MOS transistor Q5 and the connection node of the first end of the resistor R11; the second of the resistor R11 The terminal is connected to the drain of the MOS transistor Q6, the source of the MOS transistor Q6 is grounded, the gate of the MOS transistor Q6 is grounded through the resistor R12, and the gate of the MOS transistor Q6 is also connected to the controller. Charging MOS control pin;
  • the source of the MOS transistor Q5 is connected to the driving voltage VGS, the drain of the MOS transistor Q5 is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the anode of the diode D3, and the cathode of the diode D2 is
  • the connection node of the anode of the diode D3 is further connected to the source of the charging MOS transistor MC through the resistor R15 and the resistor R16, and the connection node of the resistor R15 and the resistor R16 is also connected to the transistor Q7.
  • the cathode of the diode D3 is connected to the emitter of the transistor Q7 through the resistor R13, the collector of the transistor Q7 is connected to the source of the charging MOS transistor MC, and the emitters of the transistor and Q7 are also passed through the a resistor R14 is connected to the gate of the charging MOS transistor MC;
  • the cathode of the Zener diode Z2 is connected to the gate of the charging MOS transistor MC, the anode of the Zener diode Z2 is connected to the source of the charging MOS transistor MC, and the resistor R17 is connected in parallel to the Zener diode Z2. Both ends of the resistor RC are connected in series between the second end of the resistor R14 and the gate of the charging MOS transistor MC.
  • each of the battery unit units further includes: an overcurrent short circuit protection circuit connected in parallel to the two ends of the current sampling resistor and respectively connected to the discharge MOS control circuit and the controller.
  • the battery monitoring and management system of the present invention has the following beneficial effects: the invention can simultaneously monitor multiple battery packs, communicate in a wireless mode, and expand the placement range of the battery pack, and the user can monitor the battery pack at any time and anywhere.
  • the safety of the battery pack is greatly improved, and the overall system has low cost and good stability.
  • the present invention can also send the warning information to the remote management terminal before the current state information of the battery pack is abnormal, so that the user can know and handle the corresponding treatment in advance, thereby avoiding adverse effects on the battery pack and improving the service life of the battery pack. safety.
  • FIG. 1 is a schematic structural diagram of a battery monitoring management system according to an embodiment of the present invention.
  • FIG. 2 is a circuit schematic diagram of a battery unit of the present invention
  • FIG. 3 is a schematic diagram of a discharge MOS control circuit in the battery unit of the present invention.
  • FIG. 4 is a schematic diagram of a charge MOS control circuit in the battery unit of the present invention.
  • FIG. 1 is a schematic structural diagram of a preferred embodiment of a battery monitoring management system according to the present invention.
  • the battery monitoring management system includes a plurality of battery unit units 100, a cloud server 200 communicably connected to the plurality of battery unit units 100, and a management terminal 300.
  • each of the plurality of battery unit units 100 includes a wireless communication module 104 for transmitting current state information and warning information of the battery unit 100 and receiving control information sent by the cloud server 200. .
  • the current state information includes current voltage information of the battery cells in each battery unit 100, current discharge level one software current information of the battery unit 100, current discharge secondary hardware and software current information of the battery unit 100, and battery unit The current discharge secondary hardware current information of 100, the current charging current information of the battery unit 100, and the current temperature information of the battery unit 100, the current power information of the battery unit 100, and the like.
  • each battery unit 100 performs local real-time monitoring by itself, and generates early warning information when the current state information reaches the early warning condition, and generates the generated early warning information and the current state information of the battery unit 100.
  • the wireless communication module 104 sends the current state information and the early warning information of the battery unit 100 to the remote terminal through the cloud server 200, so that the user can predict the current state information of the battery unit 100 in advance, and according to The current status information is processed accordingly.
  • the battery unit 100 of the present invention can also self-protect itself locally, and the battery can be protected faster and more quickly.
  • the wireless communication module 104 includes, but is not limited to, a 2G wireless communication module 104, a 3G wireless communication module 104, a 4G wireless communication module 104, a 5G wireless communication module 104, or a WIFI wireless communication module 104.
  • a wireless communication connection between the battery unit 101 unit and the cloud server 200 can be realized.
  • the battery unit 100 can automatically transmit a WIFI signal, and the management terminal 300 can realize the connection with the battery unit 100 through the WIFI signal transmitted by the battery unit 100. Further real-time monitoring of the current state information of the battery unit 100 is achieved.
  • the wireless communication module 104 of the battery unit 100 of the present invention may be set to an AP mode or a Station mode to implement connection with the management terminal 300 without additionally adding a WIFI module. If the environment of the battery unit 100 does not cover the wireless signal, the battery unit 100 can automatically transmit a WIFI signal, and the user realizes the connection with the battery unit 100 through the WIFI signal, thereby realizing the current state information of the battery unit 100. real time monitoring.
  • each battery unit 101 unit further includes a battery pack 101 and a main controller 103.
  • the battery pack 101 is used to supply electrical energy.
  • the battery pack 101 is a lithium battery pack, and the lithium battery pack includes a plurality of lithium battery cells connected in series.
  • the main controller 103 is connected to the battery pack 101 for monitoring and managing the battery pack 101 in real time. Specifically, the main controller 103 can be configured to collect current state information of the battery pack 101 in real time, process the current state information of the battery pack 101, and output early warning information according to the processing result. The main controller 103 is further configured to output a corresponding control command according to the control information sent by the cloud server 200 received by the wireless communication module 104, thereby controlling the output of the battery pack 101.
  • the main controller 103 can automatically perform a local monitoring operation according to the current state information of the battery pack 101, and generate an early warning message when the current state information reaches an early warning condition or generate a self-protection command when the current state information reaches a self-protection condition to implement
  • the output of the battery pack 101 can also be controlled according to the control information generated by the cloud server 200 to implement the remote control operation.
  • the main controller 103 can calculate the available battery pack 101 according to the current power information of the battery pack 101 and the current discharge rate. Time, early warning that the capacity of the battery pack 101 is insufficient.
  • the main controller 103 can calculate the undervoltage time according to the current voltage information of the battery pack 101 and the current voltage change rate. The undervoltage and overvoltage of the battery pack 101 are pre-warned in advance to prevent the battery pack 101 from being protected by the battery pack 101 due to overcharging or overdischarging.
  • the main controller 103 calculates the high temperature protection and the low temperature protection time according to the current temperature change rate of the battery pack 101 and the current thermometer, thereby improving The high temperature protection time and the low temperature protection time of the battery pack 101 are alerted to prevent the battery pack 101 from being protected by the high temperature or low temperature.
  • the main controller 103 can determine whether the current current reaches the current warning threshold according to the current current information of the battery pack 101, and if so, generate an early warning information.
  • the cloud server 200 transmits to the management terminal 300 to prompt the user to reduce battery pack protection caused by current.
  • the battery unit 100 of the present invention further includes: a battery cell connected to the battery pack 101 and the main controller 103 for detecting current temperature information of the battery pack 101 and transmitting current temperature information to the main controller 103.
  • Voltage temperature acquisition circuit 102 can realize temperature collection of the battery cells in the battery pack 101 through an operational amplifier, and perform corresponding conversion and then send the signals to the main controller 103, and the main controller 103 according to the current Temperature information is processed, judged, and controlled.
  • the cell voltage temperature collecting circuit 102 can also realize temperature collection of the battery cells in the battery pack 101 through an analog front end (chip).
  • the cell voltage temperature collecting circuit 102 of the present invention is not limited to the specific examples described above.
  • the battery unit 101 further includes: a current sampling resistor connected in series with the battery pack 101;
  • a current sampling circuit 105 connected in parallel to the current sampling resistor and connected to the main controller 103 for collecting the current of the battery pack 101.
  • the current sampling circuit 105 can perform real-time acquisition of the current flowing through the current sampling resistor through A/DC, and convert the corresponding data to the main controller 103.
  • the current collected by the current sampling circuit 105 is connected to the main controller 103 through the current value sampling pin of the main controller 103 for the main controller 103 to receive and monitor.
  • the battery pack 101 unit may further include a discharge MOS transistor MD and a discharge MOS control circuit 106.
  • the source of the discharge MOS transistor MD is connected to the negative terminal (B-) of the battery pack 101 through a current sampling resistor, and the drain of the discharge MOS transistor MD is connected to the negative terminal (P-) of the battery pack unit 100, and the gate of the discharge MOS transistor MD
  • the main controller 103 discharge MOS control pin is connected through the discharge MOS control circuit 106.
  • the discharge MOS control circuit 106 includes a resistor R1, a MOS transistor Q1, a resistor R2, a diode D1, a resistor R3, a resistor R4, a resistor R5, a MOS transistor Q2, and a Zener diode Z1. , resistor R6, resistor RD, MOS transistor Q3, resistor R7, MOS transistor Q4, and resistor R9.
  • the first end of the resistor R1 is connected to the source of the MOS transistor Q1 and connected to the driving voltage VGS.
  • the second end of the resistor R1 is respectively connected to the gate of the MOS transistor Q1 and the first end of the resistor R2, and the second end of the resistor R2 is passed through the resistor.
  • R3 is connected to the gate of the MOS transistor Q2; the drain of the MOS transistor Q1 is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the first end of the resistor R4, and the second end of the resistor R4 is connected to the first end of the resistor R5 and the MOS transistor, respectively.
  • the drain of Q2, the source of MOS transistor Q2 is connected to the source of discharge MOS transistor MD.
  • the second end of the resistor R5 is connected to the gate of the discharge MOS transistor MD (such as DGS in FIG. 3), the cathode of the Zener diode Z1 is connected to the gate of the discharge MOS transistor MD, and the anode of the Zener diode Z1 is connected to the discharge MOS transistor MD.
  • a source a first end of the resistor R6 is connected to the gate of the discharge MOS transistor MD, and a second end of the resistor R6 is connected to the source of the discharge MOS transistor MD; the resistor RD is connected in series at the second end of the resistor R5 and the gate of the discharge MOS transistor MD Between the poles.
  • the drain of the MOS transistor Q3 is connected to the connection node of the resistor R2 and the resistor R3, the source of the MOS transistor Q3 is grounded, the gate of the MOS transistor Q3 is connected to the drain of the MOS transistor Q4, and the gate of the MOS transistor Q3 is also grounded via the resistor R7;
  • the source of the MOS transistor Q4 is grounded, the gate of the MOS transistor Q4 is grounded via a resistor R9, and the connection node of the gate of the MOS transistor Q3 and the drain of the MOS transistor Q4 is also connected to the discharge MOS control pin of the main controller 103.
  • the battery unit 100 further includes a charging MOS transistor MC and a charging MOS control circuit 107.
  • the drain of the charge MOS transistor MC is connected to the drain of the discharge MOS transistor MD, the source of the charge MOS transistor MC is connected to the negative terminal (B-) of the battery pack unit 100, and the gate connection of the charge MOS transistor MC is connected to the main through the charge control circuit.
  • the controller 103 charges the MOS control pin.
  • the charging MOS transistor MC control circuit includes: a resistor R10, a resistor R11, a MOS transistor Q6, a resistor R12, a MOS transistor Q5, a diode D2, a diode D3, a resistor R13, and a resistor R14.
  • the first end of the resistor R10 is connected to the driving voltage VGS, the second end of the resistor R10 is connected to the connection node of the gate of the MOS transistor Q5 and the first end of the resistor R11; the second end of the resistor R11 is connected to the drain of the MOS transistor Q6, MOS
  • the source of the transistor Q6 is grounded, the gate of the MOS transistor Q6 is grounded through the resistor R12, the gate of the MOS transistor Q6 is also connected to the charging MOS control pin of the main controller 103; the source of the MOS transistor Q5 is connected to the main controller 103, MOS
  • the drain of the transistor Q5 is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the anode of the diode D3, the cathode of the diode D2 and the anode of the diode D3 are connected to the source of the charging MOS transistor MC through the resistor R15 and the resistor R16 in sequence
  • the cathode of the diode D3 is connected to the emitter of the transistor Q7 through the resistor R13, the collector of the transistor Q7 is connected to the source of the charging MOS transistor MC, and the emitter of the transistor Q7 is also connected to the gate of the charging MOS transistor MC through the resistor R14 (as shown in FIG. 4).
  • the cathode of the Zener Z2 is connected to the gate of the charging MOS transistor MC
  • the anode of the Zener Z2 is connected to the source of the charging MOS transistor MC
  • the resistor R17 is connected in parallel at both ends of the Zener diode Z2;
  • One end is connected to the main controller 103, and the resistor RC is connected in series between the second end of the resistor R14 and the gate of the charging MOS transistor MC.
  • the battery unit 100 further includes an overcurrent short circuit protection circuit 108 connected in parallel across the current sampling resistor and connected to the discharge MOS control circuit 106 and the overcurrent shorting pin of the main controller 103, respectively.
  • the cloud server 200 is respectively communicably connected to the plurality of battery unit units 100, and is configured to receive and store current state information and early warning information sent by the wireless communication module 104, and deliver the control information to the cloud server 200 of the plurality of battery unit 101 units.
  • the cloud server 200 and the plurality of battery unit units 100 can be connected by the wireless communication module 104 built in each of the battery unit units 100.
  • It is connected to the cloud server 200, and is configured to receive current state information and early warning information of the plurality of battery unit units 100 sent by the cloud server 200, and send the control information to the management terminal 300 of the cloud server 200.
  • the management terminal 300 can be a mobile terminal, such as a mobile phone, or a desktop computer, a notebook, or the like.
  • a corresponding APP can be set, and remote monitoring of the plurality of battery unit units 100 can be realized through the APP.
  • the battery unit 100 of the present invention can realize wireless communication connection with the management terminal 300 through local direct connection or through an internet connection, thereby realizing real-time monitoring of the current state information of the battery pack 101 in the battery unit unit 100.
  • real-time monitoring of multiple battery unit units 100 can be realized simultaneously through the Internet, and a high technical barrier is formed.
  • the wireless communication mode is used, no additional wiring is required, and the place where the battery unit 100 is placed is not limited. The user can monitor the battery pack 101 anytime and anywhere, greatly improving the safety and stability of the battery pack 101, and the entire battery system. The cost is not high and the stability is good.
  • the main controller 103 used in the present invention is an efficient power chip, and the chip in the wireless communication module 104 is also an ultra-low power chip, and can be flexibly used according to different control in a specific application process. Further, the power consumption is reduced, so that the entire battery pack 101 can maintain the network online state for a long time without being charged.
  • the operation processing is performed locally according to the real-time status information of the battery unit 100, and various events that may cause threats to the life and security of the battery pack 101 may be predicted in advance, and the early warning information may be generated in advance and sent through the cloud server 200 or directly.
  • the manner of transmitting the management terminal 300 enables the user of the management terminal 300 to predict the information of the battery pack 101 in advance and to perform corresponding processing in time.

Abstract

A battery monitoring and management system, comprising: multiple battery pack units (100), wherein each of the battery pack units (100) comprises a wireless communication module (104) for sending current status information of the battery pack unit (100) and early warning information, and receiving control information issued by a cloud server (200); the cloud server (200), which is in communicative connection with the multiple battery pack units (100) respectively, and is used for receiving and storing the current status information and early warning information sent by the wireless communication module (104), and for issuing the control information to the multiple battery pack units(100); and a management terminal (300), which is connected to the cloud server (200), and is used for receiving the current status information and early warning information of the multiple battery pack units (100) sent by the cloud server (200), and for sending the control information to the cloud server (200).

Description

一种电池监控管理系统Battery monitoring and management system 技术领域Technical field
本发明涉及电池领域，更具体地说，涉及一种电池监控管理系统。The present invention relates to the field of batteries, and more particularly to a battery monitoring management system.
背景技术Background technique
随着技术的发展需求，锂电池成为了电池行业的主要应用。而锂电池的好坏直接影响到整个供电系统的好坏、以及工作效率。所以对锂电池的实时工作状态及性能的监控成为必然需求。With the development of technology, lithium batteries have become the main application of the battery industry. The quality of the lithium battery directly affects the quality of the entire power supply system and work efficiency. Therefore, the monitoring of the real-time working state and performance of the lithium battery has become an inevitable demand.
目前，对锂电池的实时工作状态及性能的监控一般是通过蓝牙的方式实现远程数据发送及接收，而蓝牙监控方案存在很多问题，当在10米以上距离时，信息不稳定，不能准确地获知锂电池的实时工作状态及性能，因此，不能及时做出相应处理而有可能导致锂电池性能下降或者损坏，影响供电系统的整体性能和效率，甚至是缩短锂电池的寿命；或者远距离因某种因素需要临时控制电池组输出时却无法实现，降低了电池的交互性能，不能真正实现对锂电池的监控和管理。At present, the real-time working status and performance monitoring of lithium batteries generally achieve remote data transmission and reception through Bluetooth, and the Bluetooth monitoring scheme has many problems. When the distance is more than 10 meters, the information is unstable and cannot be accurately known. The real-time working state and performance of the lithium battery, therefore, can not be processed in time, which may lead to the performance degradation or damage of the lithium battery, affecting the overall performance and efficiency of the power supply system, or even shorten the life of the lithium battery; The factors that need to temporarily control the output of the battery pack are not realized, which reduces the interaction performance of the battery, and can not truly realize the monitoring and management of the lithium battery.
技术问题technical problem
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种电池监控管理系统。The technical problem to be solved by the present invention is to provide a battery monitoring management system for the above-mentioned drawbacks of the prior art.
技术解决方案Technical solution
本发明解决其技术问题所采用的技术方案是：构造一种电池监控管理系统，包括：The technical solution adopted by the present invention to solve the technical problem thereof is: constructing a battery monitoring and management system, comprising:
多个电池组单元，每一个所述电池组单元包括用于发送所述电池组单元的当前状态信息和预警信息、以及接收云服务器下发的控制信息的无线通信模块；a plurality of battery unit units, each of the battery unit units includes a wireless communication module for transmitting current state information and warning information of the battery unit, and receiving control information delivered by the cloud server;
所述云服务器分别与所述多个电池组单元通信连接、用于接收并存储所述无线通信模块发送的当前状态信息和预警信息，以及下发控制信息至所述多个电池组单元的云服务器；The cloud server is respectively connected to the plurality of battery unit units for receiving and storing current state information and early warning information sent by the wireless communication module, and delivering the control information to the cloud of the plurality of battery unit units. server;
与所述云服务器连接、用于接收所述云服务器发送的所述多个电池组单元的当前状态信息和预警信息，并发送所述控制信息至所述云服务器的管理终端。And connected to the cloud server, configured to receive current state information and early warning information of the plurality of battery unit units sent by the cloud server, and send the control information to a management terminal of the cloud server.
优选地，所述无线通信模块包括2G无线通信模块、3G无线通信模块、4G无线通信模块、5G无线通信模块或者WIFI无线通信模块。Preferably, the wireless communication module comprises a 2G wireless communication module, a 3G wireless communication module, a 4G wireless communication module, a 5G wireless communication module or a WIFI wireless communication module.
优选地，每一个所述电池组单元还包括：Preferably, each of the battery unit further comprises:
用于提供电能的电池组；a battery pack for providing electrical energy;
与所述电池组连接、用于采集所述电池组的当前状态信息并对所述当前状态信息进行处理，根据处理结果输出预警信息的控制器；a controller connected to the battery pack for collecting current state information of the battery pack and processing the current state information, and outputting early warning information according to the processing result;
所述控制器还用于通过所述无线通信模块接收所述云服务器下发的控制信息并根据所述控制信息输出控制指令。The controller is further configured to receive, by the wireless communication module, control information delivered by the cloud server, and output a control instruction according to the control information.
优选地，每一个所述电池组单元还包括：Preferably, each of the battery unit further comprises:
分别与所述电池组和所述控制器的数字信号采集引脚连接、用于检测所述电池组的当前温度信息，并将所述当前温度信息发送给所述控制器的电芯电压温度采集电路。Connected to the battery pack and the digital signal acquisition pin of the controller, respectively, for detecting current temperature information of the battery pack, and transmitting the current temperature information to the battery voltage temperature collection of the controller Circuit.
优选地，每一个所述电池组单元还包括：Preferably, each of the battery unit further comprises:
与所述电池组串联的电流采样电阻；a current sampling resistor in series with the battery pack;
并联在所述电流采样电阻两端且与所述控制器的电流值采样引脚连接、用于采集所述电池组电流的电流采样电路。A current sampling circuit for connecting the current sampling pin of the controller and connected to the current value sampling pin of the controller for collecting the current of the battery.
优选地，每一个所述电池组单元还包括：放电MOS管MD和放电MOS控制电路；Preferably, each of the battery unit further includes: a discharge MOS transistor MD and a discharge MOS control circuit;
所述放电MOS管MD的源极通过所述电流采样电阻连接所述电池组的负端，所述放电MOS管MD的漏极连接所述电池组单元的负端，所述放电MOS管MD的栅极通过所述放电MOS控制电路连接所述控制器的放电MOS控制引脚。a source of the discharge MOS transistor MD is connected to a negative terminal of the battery pack through the current sampling resistor, and a drain of the discharge MOS transistor MD is connected to a negative terminal of the battery unit, the discharge MOS transistor MD A gate is coupled to the discharge MOS control pin of the controller through the discharge MOS control circuit.
优选地，所述放电MOS控制电路包括：电阻R1、MOS管Q1、电阻R2、二极管D1、电阻R3、电阻R4、电阻R5、MOS管Q2、稳压管Z1、电阻R6、电阻RD、MOS管Q3、电阻R7、MOS管Q4以及电阻R9；Preferably, the discharge MOS control circuit comprises: a resistor R1, a MOS transistor Q1, a resistor R2, a diode D1, a resistor R3, a resistor R4, a resistor R5, a MOS transistor Q2, a Zener diode Z1, a resistor R6, a resistor RD, and a MOS transistor. Q3, resistor R7, MOS transistor Q4 and resistor R9;
所述电阻R1的第一端与所述MOS管Q1的源极连接并连接驱动电压VGS，所述电阻R1的第二端分别连接所述MOS管Q1的栅极和所述电阻R2的第一端，所述电阻R2的第二端通过所述电阻R3连接所述MOS管Q2的栅极；所述MOS管Q1的漏极连接所述二极管D1的阳极，所述二极管D1的阴极连接所述电阻R4的第一端，所述电阻R4的第二端分别连接所述电阻R5的第一端和所述MOS管Q2的漏极，所述MOS管Q2的源极连接所述放电MOS管MD的源极；The first end of the resistor R1 is connected to the source of the MOS transistor Q1 and connected to the driving voltage VGS, and the second end of the resistor R1 is respectively connected to the gate of the MOS transistor Q1 and the first of the resistor R2 The second end of the resistor R2 is connected to the gate of the MOS transistor Q2 through the resistor R3; the drain of the MOS transistor Q1 is connected to the anode of the diode D1, and the cathode of the diode D1 is connected to the cathode a first end of the resistor R4, a second end of the resistor R4 is respectively connected to a first end of the resistor R5 and a drain of the MOS transistor Q2, and a source of the MOS transistor Q2 is connected to the discharge MOS transistor MD Source
所述电阻R5的第二端连接所述放电MOS管MD的栅极，所述稳压管Z1的阴极所述放电MOS管MD的栅极、所述稳压管Z1的阳极连接所述放电MOS管MD的源极，所述电阻R6的第一端所述放电MOS管MD的栅极，所述电阻R6的第二端连接所述放电MOS管MD的源极；所述电阻RD串联在所述电阻R5的第二端与所述放电MOS管MD的栅极之间； The second end of the resistor R5 is connected to the gate of the discharge MOS transistor MD, the cathode of the Zener Z1 is connected to the gate of the discharge MOS transistor MD, and the anode of the Zener diode Z1 is connected to the discharge MOS. a source of the tube MD, a first end of the resistor R6, a gate of the discharge MOS transistor MD, a second end of the resistor R6 connected to a source of the discharge MOS transistor MD; the resistor RD is connected in series Between the second end of the resistor R5 and the gate of the discharge MOS transistor MD;
所述MOS管Q3的漏极连接所述电阻R2和电阻R3的连接节点，所述MOS管Q3的源极接地，所述MOS管Q3的栅极连接所述MOS管Q4的漏极，所述MOS管Q3的栅极还通过所述电阻R7接地；所述MOS管Q4的源极接地，所述MOS管Q4的栅极通过所述电阻R9接地，所述MOS管Q3的栅极和所述MOS管Q4的漏极的连接节点还连接至所述控制器的放电MOS控制引脚。a drain of the MOS transistor Q3 is connected to a connection node of the resistor R2 and the resistor R3, a source of the MOS transistor Q3 is grounded, and a gate of the MOS transistor Q3 is connected to a drain of the MOS transistor Q4. The gate of the MOS transistor Q3 is also grounded through the resistor R7; the source of the MOS transistor Q4 is grounded, the gate of the MOS transistor Q4 is grounded through the resistor R9, the gate of the MOS transistor Q3 and the The connection node of the drain of the MOS transistor Q4 is also connected to the discharge MOS control pin of the controller.
优选地，每一个所述电池组单元还包括：充电MOS管MC和充电MOS控制电路；Preferably, each of the battery unit further includes: a charging MOS transistor MC and a charging MOS control circuit;
所述充电MOS管MC的漏极连接所述放电MOS管MD的漏极，所述充电MOS管MC的源极连接所述电池组单元的负端，所述充电MOS管MC的栅极连接通过所述充电控制电路连接所述控制器的充电MOS控制引脚。The drain of the charging MOS transistor MC is connected to the drain of the discharge MOS transistor MD, the source of the charging MOS transistor MC is connected to the negative terminal of the battery unit, and the gate of the charging MOS transistor MC is connected. The charge control circuit is coupled to a charge MOS control pin of the controller.
优选地，所述充电MOS控制电路包括：电阻R10、电阻R11、MOS管Q6、电阻R12、MOS管Q5、二极管D2、二极管D3、电阻R13、电阻R14、三极管Q7、电阻R15、电阻R16、电阻R17、稳压管Z2、以及电阻RC；Preferably, the charging MOS control circuit comprises: resistor R10, resistor R11, MOS transistor Q6, resistor R12, MOS transistor Q5, diode D2, diode D3, resistor R13, resistor R14, transistor Q7, resistor R15, resistor R16, resistor R17, voltage regulator tube Z2, and resistor RC;
所述电阻R10的第一端连接驱动电压VGS，所述电阻R10的第二端连接所述MOS管Q5的栅极和所述电阻R11的第一端的连接节点；所述电阻R11的第二端连接所述MOS管Q6的漏极，所述MOS管Q6的源极接地，所述MOS管Q6的栅极通过所述电阻R12接地，所述MOS管Q6的栅极还连接所述控制器的充电MOS控制引脚；The first end of the resistor R10 is connected to the driving voltage VGS, the second end of the resistor R10 is connected to the gate of the MOS transistor Q5 and the connection node of the first end of the resistor R11; the second of the resistor R11 The terminal is connected to the drain of the MOS transistor Q6, the source of the MOS transistor Q6 is grounded, the gate of the MOS transistor Q6 is grounded through the resistor R12, and the gate of the MOS transistor Q6 is also connected to the controller. Charging MOS control pin;
所述MOS管Q5的源极连接驱动电压VGS，所述MOS管Q5的漏极连接所述二极管D2的阳极，所述二极管D2的阴极连接所述二极管D3的阳极，所述二极管D2的阴极和所述二极管D3的阳极的连接节点还通过依次通过所述电阻R15、电阻R16连接所述充电MOS管MC的源极，所述电阻R15和所述电阻R16的连接节点还连接所述三极管Q7的基极；The source of the MOS transistor Q5 is connected to the driving voltage VGS, the drain of the MOS transistor Q5 is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the anode of the diode D3, and the cathode of the diode D2 is The connection node of the anode of the diode D3 is further connected to the source of the charging MOS transistor MC through the resistor R15 and the resistor R16, and the connection node of the resistor R15 and the resistor R16 is also connected to the transistor Q7. Base
所述二极管D3的阴极通过所述电阻R13连接所述三极管Q7的发射极，所述三极管Q7的集电极连接所述充电MOS管MC的源极，所述三极管和Q7的发射极还通过所述电阻R14连接所述充电MOS管MC的栅极；The cathode of the diode D3 is connected to the emitter of the transistor Q7 through the resistor R13, the collector of the transistor Q7 is connected to the source of the charging MOS transistor MC, and the emitters of the transistor and Q7 are also passed through the a resistor R14 is connected to the gate of the charging MOS transistor MC;
所述稳压管Z2的阴极连接所述充电MOS管MC的栅极，所述稳压管Z2的阳极连接所述充电MOS管MC的源极，所述电阻R17并联在所述稳压管Z2的两端；所述电阻RC串联在所述电阻R14的第二端与所述充电MOS管MC的栅极之间。The cathode of the Zener diode Z2 is connected to the gate of the charging MOS transistor MC, the anode of the Zener diode Z2 is connected to the source of the charging MOS transistor MC, and the resistor R17 is connected in parallel to the Zener diode Z2. Both ends of the resistor RC are connected in series between the second end of the resistor R14 and the gate of the charging MOS transistor MC.
优选地，每一个所述电池组单元还包括：并联在所述电流采样电阻的两端、且分别与所述放电MOS控制电路和所述控制器连接的过流短路保护电路。Preferably, each of the battery unit units further includes: an overcurrent short circuit protection circuit connected in parallel to the two ends of the current sampling resistor and respectively connected to the discharge MOS control circuit and the controller.
有益效果Beneficial effect
实施本发明的电池监控管理系统，具有以下有益效果：本发明可同时对多个电池包进行监控，使用无线模式进行通信，扩大了电池包的放置范围，使用者可以随时随地监控电池组，极大的提高了电池组使用的安全性，且整个系统成本低、稳定性好。The battery monitoring and management system of the present invention has the following beneficial effects: the invention can simultaneously monitor multiple battery packs, communicate in a wireless mode, and expand the placement range of the battery pack, and the user can monitor the battery pack at any time and anywhere. The safety of the battery pack is greatly improved, and the overall system has low cost and good stability.
另外，本发明还可以在电池组的当前状态信息出现异常之前发送预警信息给远程管理终端，使用户可以提前获知并做出相应处理，避免对电池组造成不良影响，提高电池组的使用寿命和安全性。In addition, the present invention can also send the warning information to the remote management terminal before the current state information of the battery pack is abnormal, so that the user can know and handle the corresponding treatment in advance, thereby avoiding adverse effects on the battery pack and improving the service life of the battery pack. safety.
附图说明DRAWINGS
下面将结合附图及实施例对本发明作进一步说明，附图中：The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:
图1是本发明实施例提供的一种电池监控管理系统的结构示意图；1 is a schematic structural diagram of a battery monitoring management system according to an embodiment of the present invention;
图2是本发明电池组单元的电路原理图；2 is a circuit schematic diagram of a battery unit of the present invention;
图3是本发明电池组单元中的放电MOS控制电路的原理图；Figure 3 is a schematic diagram of a discharge MOS control circuit in the battery unit of the present invention;
图4是本发明电池组单元中的充电MOS控制电路的原理图。4 is a schematic diagram of a charge MOS control circuit in the battery unit of the present invention.
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.
参考图1，图1为本发明一种电池监控管理系统一优选实施例的结构示意图。Referring to FIG. 1, FIG. 1 is a schematic structural diagram of a preferred embodiment of a battery monitoring management system according to the present invention.
如图1所示，该电池监控管理系统，包括：多个电池组单元100、分别与该多个电池组单元100通信连接的云服务器200、以及管理终端300。As shown in FIG. 1, the battery monitoring management system includes a plurality of battery unit units 100, a cloud server 200 communicably connected to the plurality of battery unit units 100, and a management terminal 300.
可选的，该多个电池组单元100中，每一个电池组单元100包括用于发送电池组单元100的当前状态信息和预警信息、以及接收云服务器200下发的控制信息的无线通信模块104。Optionally, each of the plurality of battery unit units 100 includes a wireless communication module 104 for transmitting current state information and warning information of the battery unit 100 and receiving control information sent by the cloud server 200. .
当前状态信息包括每一个电池组单元100中的电池单体的当前电压信息、电池组单元100的当前放电一级软件电流信息、电池组单元100的当前放电二级软硬件电流信息、电池组单元100的当前放电二级硬件电流信息、电池组单元100的当前充电电流信息、以及电池组单元100的当前温度信息、电池组单元100的当前电量信息等。The current state information includes current voltage information of the battery cells in each battery unit 100, current discharge level one software current information of the battery unit 100, current discharge secondary hardware and software current information of the battery unit 100, and battery unit The current discharge secondary hardware current information of 100, the current charging current information of the battery unit 100, and the current temperature information of the battery unit 100, the current power information of the battery unit 100, and the like.
在本发明实施例中，由每一个电池组单元100自行进行本地实时监测，并在当前状态信息达到预警条件时，产生预警信息，并将所产生的预警信息和电池组单元100的当前状态信息通过无线通信模块104发送给云服务器200，以通过云服务器200将电池组单元100的当前状态信息、预警信息发送给远程终端，以使用户可以提前预知电池组单元100的当前状态信息，并根据当前状态信息及时做出相应处理。In the embodiment of the present invention, each battery unit 100 performs local real-time monitoring by itself, and generates early warning information when the current state information reaches the early warning condition, and generates the generated early warning information and the current state information of the battery unit 100. The wireless communication module 104 sends the current state information and the early warning information of the battery unit 100 to the remote terminal through the cloud server 200, so that the user can predict the current state information of the battery unit 100 in advance, and according to The current status information is processed accordingly.
进一步地，当电池组单元100的当前状态信息达到自保护条件时，本发明的电池组单元100也可以自行在本地进行自我保护，可以更快、更迅速地保护电池。Further, when the current state information of the battery unit 100 reaches the self-protection condition, the battery unit 100 of the present invention can also self-protect itself locally, and the battery can be protected faster and more quickly.
作为选择，无线通信模块104包括但不限于2G无线通信模块104、3G无线通信模块104、4G无线通信模块104、5G无线通信模块104或者WIFI无线通信模块104。通过该无线通信模块104，可实现电池组101单元与云服务器200的无线通信连接。而且，对于没有无线信号的地方，例如，没有WIFI信号的地方，电池组单元100可自动发射一个WIFI信号，管理终端300可以通过电池组单元100发射的WIFI信号实现与电池组单元100的连接，进而实现对电池组单元100的当前状态信息的实时监控。具体的，本发明的电池组单元100的无线通信模块104可以设置为AP模式或Station模式，以实现与管理终端300的连接，不需要额外增设WIFI模块。如果电池组单元100所在环境没有覆盖无线信号时，可由电池组单元100自动发射一个WIFI信号，用户通过该WIFI信号实现与电池组单元100的连接，进而实现对电池组单元100的当前状态信息的实时监控。Alternatively, the wireless communication module 104 includes, but is not limited to, a 2G wireless communication module 104, a 3G wireless communication module 104, a 4G wireless communication module 104, a 5G wireless communication module 104, or a WIFI wireless communication module 104. Through the wireless communication module 104, a wireless communication connection between the battery unit 101 unit and the cloud server 200 can be realized. Moreover, for a place where there is no wireless signal, for example, where there is no WIFI signal, the battery unit 100 can automatically transmit a WIFI signal, and the management terminal 300 can realize the connection with the battery unit 100 through the WIFI signal transmitted by the battery unit 100. Further real-time monitoring of the current state information of the battery unit 100 is achieved. Specifically, the wireless communication module 104 of the battery unit 100 of the present invention may be set to an AP mode or a Station mode to implement connection with the management terminal 300 without additionally adding a WIFI module. If the environment of the battery unit 100 does not cover the wireless signal, the battery unit 100 can automatically transmit a WIFI signal, and the user realizes the connection with the battery unit 100 through the WIFI signal, thereby realizing the current state information of the battery unit 100. real time monitoring.
如图2所示，作为选择，本发明实施例中，每一个电池组101单元还包括电池组101和主控制器103。As shown in FIG. 2, in the embodiment of the present invention, each battery unit 101 unit further includes a battery pack 101 and a main controller 103.
该电池组101用于提供电能。可选的，该电池组101为锂电池组，且该锂电池组包括多个串联的锂电池单体。The battery pack 101 is used to supply electrical energy. Optionally, the battery pack 101 is a lithium battery pack, and the lithium battery pack includes a plurality of lithium battery cells connected in series.
该主控制器103，与该电池组101连接，用于实时监控及管理该电池组101。具体的，该主控制器103可以用于实时采集该电池组101的当前状态信息，并对该电池组101的当前状态信息进行处理，根据处理结果输出预警信息。该主控制器103还用于根据无线通信模块104接收的云服务器200下发的控制信息输出相应的控制指令，进而控制电池组101的输出。换言之，该主控制器103可以自动根据电池组101的当前状态信息执行本地监测操作，并在当前状态信息达到预警条件时产生预警信息或者在当前状态信息达到自我保护条件时产生自我保护指令以实现对电池组101的自我保护，也可以根据云服务器200下发的控制信息产生控制指令控制电池组101的输出，以实现远程控制操作。The main controller 103 is connected to the battery pack 101 for monitoring and managing the battery pack 101 in real time. Specifically, the main controller 103 can be configured to collect current state information of the battery pack 101 in real time, process the current state information of the battery pack 101, and output early warning information according to the processing result. The main controller 103 is further configured to output a corresponding control command according to the control information sent by the cloud server 200 received by the wireless communication module 104, thereby controlling the output of the battery pack 101. In other words, the main controller 103 can automatically perform a local monitoring operation according to the current state information of the battery pack 101, and generate an early warning message when the current state information reaches an early warning condition or generate a self-protection command when the current state information reaches a self-protection condition to implement For the self-protection of the battery pack 101, the output of the battery pack 101 can also be controlled according to the control information generated by the cloud server 200 to implement the remote control operation.
例如，若电池组单元100的当前状态信息为电池组101的当前电量信息和当前放电倍率，则主控制器103可以根据电池组101的当前电量信息及当前放电倍率计算出该电池组101的可用时间，提前预警电池组101的容量不足。或者，若电池组单元100的当前状态信息为电池组101的当前电压信息和当前电压变化率，则主控制器103可以根据电池组101的当前电压信息和当前电压变化率计算出欠压时间和过压时间，提前预警电池组101的欠压和过压，防止电池组101因过充电或过放电导致的电池组101保护。或者，若电池组单元100的当前状态信息为电池组101的当前温度变化率和当前温度，则主控制器103根据电池组101的当前温度变化率和当前温度计算出高温保护和低温保护时间，提高预警电池组101的高温保护时间和低温保护时间，防止电池组101因高温或低温导致的电池组101保护。或者，若电池组单元100的当前状态信息为电池组101的当前电流信息，则主控制器103可以根据电池组101的当前电流信息判断当前电流是否达到电流预警阈值，若是，则产生预警信息并通过云服务器200发送给管理终端300，以提示用户，减少因电流造成的电池包保护。For example, if the current state information of the battery unit 100 is the current power information of the battery pack 101 and the current discharge rate, the main controller 103 can calculate the available battery pack 101 according to the current power information of the battery pack 101 and the current discharge rate. Time, early warning that the capacity of the battery pack 101 is insufficient. Alternatively, if the current state information of the battery unit 100 is the current voltage information of the battery pack 101 and the current voltage change rate, the main controller 103 can calculate the undervoltage time according to the current voltage information of the battery pack 101 and the current voltage change rate. The undervoltage and overvoltage of the battery pack 101 are pre-warned in advance to prevent the battery pack 101 from being protected by the battery pack 101 due to overcharging or overdischarging. Alternatively, if the current state information of the battery unit 100 is the current temperature change rate of the battery pack 101 and the current temperature, the main controller 103 calculates the high temperature protection and the low temperature protection time according to the current temperature change rate of the battery pack 101 and the current thermometer, thereby improving The high temperature protection time and the low temperature protection time of the battery pack 101 are alerted to prevent the battery pack 101 from being protected by the high temperature or low temperature. Alternatively, if the current state information of the battery unit 100 is the current current information of the battery pack 101, the main controller 103 can determine whether the current current reaches the current warning threshold according to the current current information of the battery pack 101, and if so, generate an early warning information. The cloud server 200 transmits to the management terminal 300 to prompt the user to reduce battery pack protection caused by current.
作为选择，本发明的电池组单元100还包括：分别与电池组101和主控制器103连接、用于检测电池组101的当前温度信息，并将当前温度信息发送给主控制器103的电芯电压温度采集电路102。可选的，该电芯电压温度采集电路102可以通过运算放大器实现对电池组101中电池单体的温度采集，并进行相应的转换后发送给主控制器103，由主控制器103根据当前的温度信息进行处理、判断及控制。或者该电芯电压温度采集电路102还可以通过模拟前端（芯片）实现对电池组101中电池单体的温度采集。一般地，在具体的电路设计中，当电池组101中电池单体的数量较少时可选用运算放大器实现，当电池组101中电池单体的数量较多时则选用模拟前端实现，进而可以提升运算处理效率。当然，本发明的电芯电压温度采集电路102不限于上述具体例子。Alternatively, the battery unit 100 of the present invention further includes: a battery cell connected to the battery pack 101 and the main controller 103 for detecting current temperature information of the battery pack 101 and transmitting current temperature information to the main controller 103. Voltage temperature acquisition circuit 102. Optionally, the cell voltage temperature collecting circuit 102 can realize temperature collection of the battery cells in the battery pack 101 through an operational amplifier, and perform corresponding conversion and then send the signals to the main controller 103, and the main controller 103 according to the current Temperature information is processed, judged, and controlled. Alternatively, the cell voltage temperature collecting circuit 102 can also realize temperature collection of the battery cells in the battery pack 101 through an analog front end (chip). Generally, in a specific circuit design, when the number of battery cells in the battery pack 101 is small, an operational amplifier can be used. When the number of battery cells in the battery pack 101 is large, an analog front end is selected, which can be improved. Operation processing efficiency. Of course, the cell voltage temperature collecting circuit 102 of the present invention is not limited to the specific examples described above.
进一步地，如图2所示，该电池组101单元还包括：与电池组101串联的电流采样电阻；Further, as shown in FIG. 2, the battery unit 101 further includes: a current sampling resistor connected in series with the battery pack 101;
并联在电流采样电阻两端且与主控制器103连接、用于采集电池组101电流的电流采样电路105。可选的，该电流采样电路105可以通过A/DC实现对流经电流采样电阻的电流的实时采集，并转换为对应的数据发送给主控制器103。具体的，电流采样电路105所采集的电流通过主控制器103的电流值采样引脚接入主控制器103，以供主控制器103接收及监控。A current sampling circuit 105 connected in parallel to the current sampling resistor and connected to the main controller 103 for collecting the current of the battery pack 101. Optionally, the current sampling circuit 105 can perform real-time acquisition of the current flowing through the current sampling resistor through A/DC, and convert the corresponding data to the main controller 103. Specifically, the current collected by the current sampling circuit 105 is connected to the main controller 103 through the current value sampling pin of the main controller 103 for the main controller 103 to receive and monitor.
该电池组101单元还可以包括放电MOS管MD和放电MOS控制电路106。The battery pack 101 unit may further include a discharge MOS transistor MD and a discharge MOS control circuit 106.
放电MOS管MD的源极通过电流采样电阻连接电池组101的负端（B-），放电MOS管MD的漏极连接电池组单元100的负端（P-），放电MOS管MD的栅极通过放电MOS控制电路106连接主控制器103放电MOS控制引脚。The source of the discharge MOS transistor MD is connected to the negative terminal (B-) of the battery pack 101 through a current sampling resistor, and the drain of the discharge MOS transistor MD is connected to the negative terminal (P-) of the battery pack unit 100, and the gate of the discharge MOS transistor MD The main controller 103 discharge MOS control pin is connected through the discharge MOS control circuit 106.
在一个具体实施例中，如图3所示，该放电MOS控制电路106包括电阻R1、MOS管Q1、电阻R2、二极管D1、电阻R3、电阻R4、电阻R5、MOS管Q2、稳压管Z1、电阻R6、电阻RD、MOS管Q3、电阻R7、MOS管Q4以及电阻R9。In a specific embodiment, as shown in FIG. 3, the discharge MOS control circuit 106 includes a resistor R1, a MOS transistor Q1, a resistor R2, a diode D1, a resistor R3, a resistor R4, a resistor R5, a MOS transistor Q2, and a Zener diode Z1. , resistor R6, resistor RD, MOS transistor Q3, resistor R7, MOS transistor Q4, and resistor R9.
电阻R1的第一端与MOS管Q1的源极连接并连接驱动电压VGS，电阻R1的第二端分别连接MOS管Q1的栅极和电阻R2的第一端，电阻R2的第二端通过电阻R3连接MOS管Q2的栅极；MOS管Q1的漏极连接二极管D1的阳极，二极管D1的阴极连接电阻R4的第一端，电阻R4的第二端分别连接电阻R5的第一端和MOS管Q2的漏极，MOS管Q2的源极连接放电MOS管MD的源极。The first end of the resistor R1 is connected to the source of the MOS transistor Q1 and connected to the driving voltage VGS. The second end of the resistor R1 is respectively connected to the gate of the MOS transistor Q1 and the first end of the resistor R2, and the second end of the resistor R2 is passed through the resistor. R3 is connected to the gate of the MOS transistor Q2; the drain of the MOS transistor Q1 is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the first end of the resistor R4, and the second end of the resistor R4 is connected to the first end of the resistor R5 and the MOS transistor, respectively. The drain of Q2, the source of MOS transistor Q2 is connected to the source of discharge MOS transistor MD.
电阻R5的第二端连接放电MOS管MD的栅极（如图3中的DGS），稳压管Z1的阴极连接放电MOS管MD的栅极、稳压管Z1的阳极连接放电MOS管MD的源极，电阻R6的第一端连接放电MOS管MD的栅极，电阻R6的第二端连接放电MOS管MD的源极；电阻RD串联在电阻R5的第二端与放电MOS管MD的栅极之间。The second end of the resistor R5 is connected to the gate of the discharge MOS transistor MD (such as DGS in FIG. 3), the cathode of the Zener diode Z1 is connected to the gate of the discharge MOS transistor MD, and the anode of the Zener diode Z1 is connected to the discharge MOS transistor MD. a source, a first end of the resistor R6 is connected to the gate of the discharge MOS transistor MD, and a second end of the resistor R6 is connected to the source of the discharge MOS transistor MD; the resistor RD is connected in series at the second end of the resistor R5 and the gate of the discharge MOS transistor MD Between the poles.
MOS管Q3的漏极连接电阻R2和电阻R3的连接节点，MOS管Q3的源极接地，MOS管Q3的栅极连接MOS管Q4的漏极，MOS管Q3的栅极还通过电阻R7接地；MOS管Q4的源极接地，MOS管Q4的栅极通过电阻R9接地，MOS管Q3的栅极和MOS管Q4的漏极的连接节点还连接至主控制器103的放电MOS控制引脚。The drain of the MOS transistor Q3 is connected to the connection node of the resistor R2 and the resistor R3, the source of the MOS transistor Q3 is grounded, the gate of the MOS transistor Q3 is connected to the drain of the MOS transistor Q4, and the gate of the MOS transistor Q3 is also grounded via the resistor R7; The source of the MOS transistor Q4 is grounded, the gate of the MOS transistor Q4 is grounded via a resistor R9, and the connection node of the gate of the MOS transistor Q3 and the drain of the MOS transistor Q4 is also connected to the discharge MOS control pin of the main controller 103.
该电池组单元100还包括充电MOS管MC和充电MOS控制电路107。The battery unit 100 further includes a charging MOS transistor MC and a charging MOS control circuit 107.
充电MOS管MC的漏极连接放电MOS管MD的漏极，充电MOS管MC的源极连接电池组单元100的负端（B-），充电MOS管MC的栅极连接通过充电控制电路连接主控制器103充电MOS控制引脚。The drain of the charge MOS transistor MC is connected to the drain of the discharge MOS transistor MD, the source of the charge MOS transistor MC is connected to the negative terminal (B-) of the battery pack unit 100, and the gate connection of the charge MOS transistor MC is connected to the main through the charge control circuit. The controller 103 charges the MOS control pin.
在一个具体实施例中，如图4所示，该充电MOS管MC控制电路包括：电阻R10、电阻R11、MOS管Q6、电阻R12、MOS管Q5、二极管D2、二极管D3、电阻R13、电阻R14、三极管Q7、电阻R15、电阻R16、电阻R17、稳压管Z2、以及电阻RC。In a specific embodiment, as shown in FIG. 4, the charging MOS transistor MC control circuit includes: a resistor R10, a resistor R11, a MOS transistor Q6, a resistor R12, a MOS transistor Q5, a diode D2, a diode D3, a resistor R13, and a resistor R14. Transistor Q7, resistor R15, resistor R16, resistor R17, Zener diode Z2, and resistor RC.
电阻R10的第一端连接驱动电压VGS，电阻R10的第二端连接MOS管Q5的栅极和电阻R11的第一端的连接节点；电阻R11的第二端连接MOS管Q6的漏极，MOS管Q6的源极接地，MOS管Q6的栅极通过电阻R12接地，MOS管Q6的栅极还连接主控制器103的充电MOS控制引脚；MOS管Q5的源极连接主控制器103，MOS管Q5的漏极连接二极管D2的阳极，二极管D2的阴极连接二极管D3的阳极，二极管D2的阴极和二极管D3的阳极的连接节点还通过依次通过电阻R15、电阻R16连接充电MOS管MC的源极，电阻R15和电阻R16的连接节点还连接三极管Q7的基极。The first end of the resistor R10 is connected to the driving voltage VGS, the second end of the resistor R10 is connected to the connection node of the gate of the MOS transistor Q5 and the first end of the resistor R11; the second end of the resistor R11 is connected to the drain of the MOS transistor Q6, MOS The source of the transistor Q6 is grounded, the gate of the MOS transistor Q6 is grounded through the resistor R12, the gate of the MOS transistor Q6 is also connected to the charging MOS control pin of the main controller 103; the source of the MOS transistor Q5 is connected to the main controller 103, MOS The drain of the transistor Q5 is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the anode of the diode D3, the cathode of the diode D2 and the anode of the diode D3 are connected to the source of the charging MOS transistor MC through the resistor R15 and the resistor R16 in sequence. The connection node of the resistor R15 and the resistor R16 is also connected to the base of the transistor Q7.
二极管D3的阴极通过电阻R13连接三极管Q7的发射极，三极管Q7的集电极连接充电MOS管MC的源极，三极管Q7的发射极还通过电阻R14连接充电MOS管MC的栅极（如图4中的CGS）；稳压管Z2的阴极连接充电MOS管MC的栅极，稳压管Z2的阳极连接充电MOS管MC的源极，电阻R17并联在稳压管Z2的两端；电阻RC的第一端连接主控制器103，电阻RC串联在所述电阻R14的第二端与所述充电MOS管MC的栅极之间。The cathode of the diode D3 is connected to the emitter of the transistor Q7 through the resistor R13, the collector of the transistor Q7 is connected to the source of the charging MOS transistor MC, and the emitter of the transistor Q7 is also connected to the gate of the charging MOS transistor MC through the resistor R14 (as shown in FIG. 4). CGS); the cathode of the Zener Z2 is connected to the gate of the charging MOS transistor MC, the anode of the Zener Z2 is connected to the source of the charging MOS transistor MC, and the resistor R17 is connected in parallel at both ends of the Zener diode Z2; One end is connected to the main controller 103, and the resistor RC is connected in series between the second end of the resistor R14 and the gate of the charging MOS transistor MC.
该电池组单元100还包括并联在电流采样电阻的两端、且分别与放电MOS控制电路106和主控制器103的过流短路引脚连接的过流短路保护电路108。The battery unit 100 further includes an overcurrent short circuit protection circuit 108 connected in parallel across the current sampling resistor and connected to the discharge MOS control circuit 106 and the overcurrent shorting pin of the main controller 103, respectively.
云服务器200分别与多个电池组单元100通信连接、用于接收并存储无线通信模块104发送的当前状态信息和预警信息，以及下发控制信息至多个电池组101单元的云服务器200。具体的，云服务器200与多个电池组单元100可以通过内置于每一个电池组单元100的无线通信模块104实现连接。The cloud server 200 is respectively communicably connected to the plurality of battery unit units 100, and is configured to receive and store current state information and early warning information sent by the wireless communication module 104, and deliver the control information to the cloud server 200 of the plurality of battery unit 101 units. Specifically, the cloud server 200 and the plurality of battery unit units 100 can be connected by the wireless communication module 104 built in each of the battery unit units 100.
与云服务器200连接、用于接收云服务器200发送的多个电池组单元100的当前状态信息和预警信息，并发送控制信息至云服务器200的管理终端300。It is connected to the cloud server 200, and is configured to receive current state information and early warning information of the plurality of battery unit units 100 sent by the cloud server 200, and send the control information to the management terminal 300 of the cloud server 200.
可选的，该管理终端300可以为移动终端，如手机，也可以为台式电脑、笔记本等。在手机或者电脑中，可以设置一个对应的APP，通过该APP可实现对多个电池组单元100的远程监控。Optionally, the management terminal 300 can be a mobile terminal, such as a mobile phone, or a desktop computer, a notebook, or the like. In the mobile phone or the computer, a corresponding APP can be set, and remote monitoring of the plurality of battery unit units 100 can be realized through the APP.
本发明的电池组单元100可以通过本地直连接或者通过互联网连接的方式实现与管理终端300的无线通信连接，进而实现对电池组单元100中电池组101的当前状态信息的实时监控。另外，通过互联网可以实现同时对多个电池组单元100的实时监控，形成了较高的技术壁垒。而且使用无线通信模式，不需要额外布线，不限制电池组单元100的放置地点，使用者可以随时随地监控电池组101，极大的提高电池组101使用的安全性及稳定性，且整个电池系统成本不高，稳定性好。The battery unit 100 of the present invention can realize wireless communication connection with the management terminal 300 through local direct connection or through an internet connection, thereby realizing real-time monitoring of the current state information of the battery pack 101 in the battery unit unit 100. In addition, real-time monitoring of multiple battery unit units 100 can be realized simultaneously through the Internet, and a high technical barrier is formed. Moreover, the wireless communication mode is used, no additional wiring is required, and the place where the battery unit 100 is placed is not limited. The user can monitor the battery pack 101 anytime and anywhere, greatly improving the safety and stability of the battery pack 101, and the entire battery system. The cost is not high and the stability is good.
进一步地，本发明所采用的主控制器103为高效的电源芯片，所采用的无线通信模块104中的芯片也是超低功耗的芯片，在具体应用过程中，可以根据不同的控制灵活使用，进而降低使用功耗，使整个电池组101在不充电的情况下能长时间保持网络在线状态。另外，通过本地根据电池组单元100的实时状态信息进行运算处理，提前预判可能出现的各种对电池组101寿命及安全产生威胁的事件，提前产生预警信息，并通过云服务器200或者直接发送的方式发送管理终端300，使管理终端300的用户能提前预知电池组101的信息并及时做出相应处理。Further, the main controller 103 used in the present invention is an efficient power chip, and the chip in the wireless communication module 104 is also an ultra-low power chip, and can be flexibly used according to different control in a specific application process. Further, the power consumption is reduced, so that the entire battery pack 101 can maintain the network online state for a long time without being charged. In addition, the operation processing is performed locally according to the real-time status information of the battery unit 100, and various events that may cause threats to the life and security of the battery pack 101 may be predicted in advance, and the early warning information may be generated in advance and sent through the cloud server 200 or directly. The manner of transmitting the management terminal 300 enables the user of the management terminal 300 to predict the information of the battery pack 101 in advance and to perform corresponding processing in time.
以上实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据此实施，并不能限制本发明的保护范围。凡跟本发明权利要求范围所做的均等变化与修饰，均应属于本发明权利要求的涵盖范围。The above embodiments are merely illustrative of the technical concept and the features of the present invention. The purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention without limiting the scope of the present invention. Equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the appended claims.
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。It is to be understood that those skilled in the art will be able to make modifications and changes in accordance with the above description, and all such modifications and variations are intended to be included within the scope of the appended claims.

Claims (10)

  1. 一种电池监控管理系统，其特征在于，包括：A battery monitoring management system, comprising:
    多个电池组单元，每一个所述电池组单元包括用于发送所述电池组单元的当前状态信息和预警信息、以及接收云服务器下发的控制信息的无线通信模块；a plurality of battery unit units, each of the battery unit units includes a wireless communication module for transmitting current state information and warning information of the battery unit, and receiving control information delivered by the cloud server;
    所述云服务器分别与所述多个电池组单元通信连接、用于接收并存储所述无线通信模块发送的当前状态信息和预警信息，以及下发控制信息至所述多个电池组单元的云服务器；The cloud server is respectively connected to the plurality of battery unit units for receiving and storing current state information and early warning information sent by the wireless communication module, and delivering the control information to the cloud of the plurality of battery unit units. server;
    与所述云服务器连接、用于接收所述云服务器发送的所述多个电池组单元的当前状态信息和预警信息，并发送所述控制信息至所述云服务器的管理终端。And connected to the cloud server, configured to receive current state information and early warning information of the plurality of battery unit units sent by the cloud server, and send the control information to a management terminal of the cloud server.
  2. 根据权利要求1所述的电池监控管理系统，其特征在于，所述无线通信模块包括2G无线通信模块、3G无线通信模块、4G无线通信模块、5G无线通信模块或者WIFI无线通信模块。The battery monitoring management system according to claim 1, wherein the wireless communication module comprises a 2G wireless communication module, a 3G wireless communication module, a 4G wireless communication module, a 5G wireless communication module or a WIFI wireless communication module.
  3. 根据权利要求1所述的电池监控管理系统，其特征在于，每一个所述电池组单元还包括：The battery monitoring management system according to claim 1, wherein each of the battery unit further comprises:
    用于提供电能的电池组；a battery pack for providing electrical energy;
    与所述电池组连接、用于采集所述电池组的当前状态信息并对所述当前状态信息进行处理，根据处理结果输出预警信息的控制器；a controller connected to the battery pack for collecting current state information of the battery pack and processing the current state information, and outputting early warning information according to the processing result;
    所述控制器还用于通过所述无线通信模块接收所述云服务器下发的控制信息并根据所述控制信息输出控制指令。The controller is further configured to receive, by the wireless communication module, control information delivered by the cloud server, and output a control instruction according to the control information.
  4. 根据权利要求3所述的电池监控管理系统，其特征在于，每一个所述电池组单元还包括：The battery monitoring management system according to claim 3, wherein each of the battery unit further comprises:
    分别与所述电池组和所述控制器的数字信号采集引脚连接、用于检测所述电池组的当前温度信息，并将所述当前温度信息发送给所述控制器的电芯电压温度采集电路。Connected to the battery pack and the digital signal acquisition pin of the controller, respectively, for detecting current temperature information of the battery pack, and transmitting the current temperature information to the battery voltage temperature collection of the controller Circuit.
  5. 根据权利要求3所述的电池监控管理系统，其特征在于，每一个所述电池组单元还包括： The battery monitoring management system according to claim 3, wherein each of the battery unit further comprises:
    与所述电池组串联的电流采样电阻；a current sampling resistor in series with the battery pack;
    并联在所述电流采样电阻两端且与所述控制器的电流值采样引脚连接、用于采集所述电池组电流的电流采样电路。A current sampling circuit for connecting the current sampling pin of the controller and connected to the current value sampling pin of the controller for collecting the current of the battery.
  6. 根据权利要求5所述的电池监控管理系统，其特征在于，每一个所述电池组单元还包括：放电MOS管MD和放电MOS控制电路；The battery monitoring management system according to claim 5, wherein each of said battery unit further comprises: a discharge MOS transistor MD and a discharge MOS control circuit;
    所述放电MOS管MD的源极通过所述电流采样电阻连接所述电池组的负端，所述放电MOS管MD的漏极连接所述电池组单元的负端，所述放电MOS管MD的栅极通过所述放电MOS控制电路连接所述控制器的放电MOS控制引脚。a source of the discharge MOS transistor MD is connected to a negative terminal of the battery pack through the current sampling resistor, and a drain of the discharge MOS transistor MD is connected to a negative terminal of the battery unit, the discharge MOS transistor MD A gate is coupled to the discharge MOS control pin of the controller through the discharge MOS control circuit.
  7. 根据权利要求6所述的电池监控管理系统，其特征在于，所述放电MOS控制电路包括：电阻R1、MOS管Q1、电阻R2、二极管D1、电阻R3、电阻R4、电阻R5、MOS管Q2、稳压管Z1、电阻R6、电阻RD、MOS管Q3、电阻R7、MOS管Q4以及电阻R9；The battery monitoring management system according to claim 6, wherein the discharge MOS control circuit comprises: a resistor R1, a MOS transistor Q1, a resistor R2, a diode D1, a resistor R3, a resistor R4, a resistor R5, and a MOS transistor Q2. Zener diode Z1, resistor R6, resistor RD, MOS transistor Q3, resistor R7, MOS transistor Q4 and resistor R9;
    所述电阻R1的第一端与所述MOS管Q1的源极连接并连接驱动电压VGS，所述电阻R1的第二端分别连接所述MOS管Q1的栅极和所述电阻R2的第一端，所述电阻R2的第二端通过所述电阻R3连接所述MOS管Q2的栅极；所述MOS管Q1的漏极连接所述二极管D1的阳极，所述二极管D1的阴极连接所述电阻R4的第一端，所述电阻R4的第二端分别连接所述电阻R5的第一端和所述MOS管Q2的漏极，所述MOS管Q2的源极连接所述放电MOS管MD的源极；The first end of the resistor R1 is connected to the source of the MOS transistor Q1 and connected to the driving voltage VGS, and the second end of the resistor R1 is respectively connected to the gate of the MOS transistor Q1 and the first of the resistor R2 The second end of the resistor R2 is connected to the gate of the MOS transistor Q2 through the resistor R3; the drain of the MOS transistor Q1 is connected to the anode of the diode D1, and the cathode of the diode D1 is connected to the cathode a first end of the resistor R4, a second end of the resistor R4 is respectively connected to a first end of the resistor R5 and a drain of the MOS transistor Q2, and a source of the MOS transistor Q2 is connected to the discharge MOS transistor MD Source
    所述电阻R5的第二端连接所述放电MOS管MD的栅极，所述稳压管Z1的阴极所述放电MOS管MD的栅极、所述稳压管Z1的阳极连接所述放电MOS管MD的源极，所述电阻R6的第一端所述放电MOS管MD的栅极，所述电阻R6的第二端连接所述放电MOS管MD的源极；所述电阻RD串联在所述电阻R5的第二端与所述放电MOS管MD的栅极之间； The second end of the resistor R5 is connected to the gate of the discharge MOS transistor MD, the cathode of the Zener Z1 is connected to the gate of the discharge MOS transistor MD, and the anode of the Zener diode Z1 is connected to the discharge MOS. a source of the tube MD, a first end of the resistor R6, a gate of the discharge MOS transistor MD, a second end of the resistor R6 connected to a source of the discharge MOS transistor MD; the resistor RD is connected in series Between the second end of the resistor R5 and the gate of the discharge MOS transistor MD;
    所述MOS管Q3的漏极连接所述电阻R2和电阻R3的连接节点，所述MOS管Q3的源极接地，所述MOS管Q3的栅极连接所述MOS管Q4的漏极，所述MOS管Q3的栅极还通过所述电阻R7接地；所述MOS管Q4的源极接地，所述MOS管Q4的栅极通过所述电阻R9接地，所述MOS管Q3的栅极和所述MOS管Q4的漏极的连接节点还连接至所述控制器的放电MOS控制引脚。a drain of the MOS transistor Q3 is connected to a connection node of the resistor R2 and the resistor R3, a source of the MOS transistor Q3 is grounded, and a gate of the MOS transistor Q3 is connected to a drain of the MOS transistor Q4. The gate of the MOS transistor Q3 is also grounded through the resistor R7; the source of the MOS transistor Q4 is grounded, the gate of the MOS transistor Q4 is grounded through the resistor R9, the gate of the MOS transistor Q3 and the The connection node of the drain of the MOS transistor Q4 is also connected to the discharge MOS control pin of the controller.
  8. 根据权利要求6所述的电池监控管理系统，其特征在于，每一个所述电池组单元还包括：充电MOS管MC和充电MOS控制电路； The battery monitoring management system according to claim 6, wherein each of the battery unit further comprises: a charging MOS transistor MC and a charging MOS control circuit;
    所述充电MOS管MC的漏极连接所述放电MOS管MD的漏极，所述充电MOS管MC的源极连接所述电池组单元的负端，所述充电MOS管MC的栅极连接通过所述充电控制电路连接所述控制器的充电MOS控制引脚。The drain of the charging MOS transistor MC is connected to the drain of the discharge MOS transistor MD, the source of the charging MOS transistor MC is connected to the negative terminal of the battery unit, and the gate of the charging MOS transistor MC is connected. The charge control circuit is coupled to a charge MOS control pin of the controller.
  9. 根据权利要求8所述的电池监控管理系统，其特征在于，所述充电MOS控制电路包括：电阻R10、电阻R11、MOS管Q6、电阻R12、MOS管Q5、二极管D2、二极管D3、电阻R13、电阻R14、三极管Q7、电阻R15、电阻R16、电阻R17、稳压管Z2、以及电阻RC；The battery monitoring management system according to claim 8, wherein the charging MOS control circuit comprises: a resistor R10, a resistor R11, a MOS transistor Q6, a resistor R12, a MOS transistor Q5, a diode D2, a diode D3, a resistor R13, Resistor R14, transistor Q7, resistor R15, resistor R16, resistor R17, voltage regulator Z2, and resistor RC;
    所述电阻R10的第一端连接驱动电压VGS，所述电阻R10的第二端连接所述MOS管Q5的栅极和所述电阻R11的第一端的连接节点；所述电阻R11的第二端连接所述MOS管Q6的漏极，所述MOS管Q6的源极接地，所述MOS管Q6的栅极通过所述电阻R12接地，所述MOS管Q6的栅极还连接所述控制器的充电MOS控制引脚；The first end of the resistor R10 is connected to the driving voltage VGS, the second end of the resistor R10 is connected to the gate of the MOS transistor Q5 and the connection node of the first end of the resistor R11; the second of the resistor R11 The terminal is connected to the drain of the MOS transistor Q6, the source of the MOS transistor Q6 is grounded, the gate of the MOS transistor Q6 is grounded through the resistor R12, and the gate of the MOS transistor Q6 is also connected to the controller. Charging MOS control pin;
    所述MOS管Q5的源极连接驱动电压VGS，所述MOS管Q5的漏极连接所述二极管D2的阳极，所述二极管D2的阴极连接所述二极管D3的阳极，所述二极管D2的阴极和所述二极管D3的阳极的连接节点还通过依次通过所述电阻R15、电阻R16连接所述充电MOS管MC的源极，所述电阻R15和所述电阻R16的连接节点还连接所述三极管Q7的基极；The source of the MOS transistor Q5 is connected to the driving voltage VGS, the drain of the MOS transistor Q5 is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the anode of the diode D3, and the cathode of the diode D2 is The connection node of the anode of the diode D3 is further connected to the source of the charging MOS transistor MC through the resistor R15 and the resistor R16, and the connection node of the resistor R15 and the resistor R16 is also connected to the transistor Q7. Base
    所述二极管D3的阴极通过所述电阻R13连接所述三极管Q7的发射极，所述三极管Q7的集电极连接所述充电MOS管MC的源极，所述三极管和Q7的发射极还通过所述电阻R14连接所述充电MOS管MC的栅极；The cathode of the diode D3 is connected to the emitter of the transistor Q7 through the resistor R13, the collector of the transistor Q7 is connected to the source of the charging MOS transistor MC, and the emitters of the transistor and Q7 are also passed through the a resistor R14 is connected to the gate of the charging MOS transistor MC;
    所述稳压管Z2的阴极连接所述充电MOS管MC的栅极，所述稳压管Z2的阳极连接所述充电MOS管MC的源极，所述电阻R17并联在所述稳压管Z2的两端；所述电阻RC串联在所述电阻R14的第二端与所述充电MOS管MC的栅极之间。The cathode of the Zener diode Z2 is connected to the gate of the charging MOS transistor MC, the anode of the Zener diode Z2 is connected to the source of the charging MOS transistor MC, and the resistor R17 is connected in parallel to the Zener diode Z2. Both ends of the resistor RC are connected in series between the second end of the resistor R14 and the gate of the charging MOS transistor MC.
  10. 根据权利要求6所述的电池监控管理系统，其特征在于，每一个所述电池组单元还包括：并联在所述电流采样电阻的两端、且分别与所述放电MOS控制电路和所述控制器连接的过流短路保护电路。The battery monitoring management system according to claim 6, wherein each of said battery unit further comprises: parallel to said two ends of said current sampling resistor, and said discharge MOS control circuit and said control An overcurrent short circuit protection circuit connected to the device.
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