CN109119708A - A kind of Multifunctional battery dynamical system - Google Patents
A kind of Multifunctional battery dynamical system Download PDFInfo
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- CN109119708A CN109119708A CN201810951563.7A CN201810951563A CN109119708A CN 109119708 A CN109119708 A CN 109119708A CN 201810951563 A CN201810951563 A CN 201810951563A CN 109119708 A CN109119708 A CN 109119708A
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- 238000005183 dynamical system Methods 0.000 title claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000004913 activation Effects 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims description 31
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 230000003287 optical effect Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 102000006479 Heterogeneous-Nuclear Ribonucleoproteins Human genes 0.000 claims description 4
- 108010019372 Heterogeneous-Nuclear Ribonucleoproteins Proteins 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 4
- 230000036772 blood pressure Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 description 33
- 238000010586 diagram Methods 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Classifications
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- 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
-
- 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
- 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
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of Multifunctional battery dynamical systems, and including several battery packs in parallel, each battery pack includes BMS battery management system, and BMS battery management system includes main control MCU, communication connection between the main control MCU of each battery pack；BMS battery management system further includes front end IC, switch module and battery core group, it is electrically connected between main control MCU and front end IC, switch module includes discharge switch and charge switch, the control terminal of discharge switch and charge switch is separately connected the different control pins of front end IC, the other end of one end connection acquisition resistance of discharge switch, one end of the other end connection charge switch of discharge switch, main control MCU receives activation signal, main control MCU exports control signal and gives front end IC, front end IC is by output level to discharge switch and charge switch to control the on and off of discharge switch and charge switch.The present invention solves the problems, such as that battery pack is unlimited in parallel by the charge switch and being switched off and on for discharge switch of control battery pack.
Description
Technical field
The present invention relates to battery technology fields, more particularly to a kind of Multifunctional battery dynamical system.
Background technique
In order to solve energy problem, more and more products using battery occur, such as electric car, electric bicycle etc.
Deng, but with the improvement of living standards, requirement of the people for battery also comes higher, existing battery pack can only be simple
It charges, cannot be any used in parallel, switching is inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of Multifunctional battery dynamical system of battery easy switching,.
A kind of Multifunctional battery dynamical system disclosed by the invention, the technical solution adopted is that:
A kind of Multifunctional battery dynamical system, including several battery packs in parallel, each battery pack includes BMS battery
Management system, the BMS battery management system includes main control MCU, communication connection between the main control MCU of each battery pack.
The BMS battery management system further includes front end IC, switch module and battery core group, the main control MCU and it is described before
Be electrically connected between the IC of end, multiple pins in parallel of the front end IC each battery core of battery core group positive and negative end, it is described
Front end IC acquires the electric signal of single battery core and entire battery core group, and collected electric signal is fed back to the master by the front end IC
MCU is controlled, the negative pole end of the battery core group is in series with acquisition resistance, and the two of them pins in parallel of the front end IC is in acquisition resistance
Both ends, collected current signal feeds back to the main control MCU by the front end IC.
The switch module includes discharge switch and charge switch, the control terminal of the discharge switch and the charge switch
The different control pins of the front end IC are separately connected, one end of the discharge switch connects the other end of the acquisition resistance,
The other end of the discharge switch connects one end of the charge switch, and the main control MCU receives activation signal, the master control
MCU exports control signal and is opened by output level to the discharge switch and the charging to the front end IC, the front end IC
It closes to control the on and off of the discharge switch and the charge switch.
Preferably, the discharge switch and the charge switch are metal-oxide-semiconductor, and the source electrode of the discharge switch connects
The acquisition resistance is connect, the drain electrode of the discharge switch connects the drain electrode of the charge switch, and the source electrode of the charge switch is logical
Power supply line connection external equipment is crossed, the grid of the discharge switch and the charge switch is separately connected the difference of the front end IC
Control pin.
Preferably, the switch module further includes having precharge switch, and the precharge switch is metal-oxide-semiconductor, institute
It states precharge switch to be connected in parallel between the source electrode and drain electrode of the discharge switch, the drain electrode of the precharge switch is connected to described
Between charge switch and the drain electrode of the discharge switch, the drain electrode of the precharge switch is also in series with preliminary filling resistance, described pre-
The grid of charge switch connects one of control pin of the front end IC, and the main control MCU receives activation signal, described
Main control MCU exports control signal to the front end IC, the front end IC output level control precharge switch conducting.
Preferably, the BMS battery management system further includes BMS power supply module, and the one of the BMS power supply module
End connects the positive terminal of the battery core group, and the other end of the BMS power supply module connects the main control MCU, the BMS power supply mould
Block includes decompression chip and voltage stabilizing chip, and the Current Voltage after the BMS power supply module lowering and stabilizing blood pressure is to member each in system
Device power supply.
Preferably, the BMS battery management system further includes 12V power module, the 12V power module and institute
State and be also connected with optical coupling isolator between BMS power supply module, the 12V power module control the optical coupling isolator conducting to
Control the BMS power supply module starting.
Preferably, the collector of the phototriode of the optical coupling isolator connects the BMS power supply module, institute
The emitter for stating the phototriode of optical coupling isolator is grounded, described in the anode connection of the light emitting diode of the optical coupling isolator
12V power module, the cathode ground connection of the light emitting diode of the optical coupling isolator, the light emitting diode of the optical coupling isolator
Also it is in series with first diode and first resistor between the positive and described 12V power module, the optical coupling isolator shines two
First capacitor is parallel between the anode and cathode of pole pipe.
Preferably, the main control MCU of each battery pack is also connected with isolated can communication module, each battery pack
Data and signal transmission are carried out by isolated can communication module between main control MCU, the main control MCU of each battery pack passes through
Isolated can communication module and external equipment carry out data and signal transmission.
Preferably, the BMS battery management system further includes SOC display module, the SOC display module and institute
It states and is electrically connected between main control MCU, the SOC display module is for showing battery package informatin, and the BMS battery management system is also
It including key module, is electrically connected between the key module and the main control MCU, the other end ground connection of the key module.
It preferably, further include upper PC end system, RTC Real Time Clock System, storage system and Transmission system, institute
It states and is electrically connected between upper PC end system and the BMS battery management system, the upper PC end system is by the BMS battery
The battery information that management system transmission comes uploads to cloud platform.
Preferably, including several battery packs in parallel, each battery pack include upper cover, main casing and under
Lid, the upper cover and the lower cover are separately mounted to the both ends of the main casing to form one for placing the chamber of battery core group
Body；
The side of the upper cover is equipped with handle, and the side of the upper cover is additionally provided with upper cover decoration, the upper cover
Water proof ring is provided between the other side and the main casing, the other side of the upper cover is also equipped with silica gel piece and epoxy plate, described
It is provided with charge and discharge electric connection on lower lid, water proof ring and silica gel piece are provided on the lower lid, branch is installed on the outside of the battery core group
Frame is also equipped with nickel sheet on the outside of the bracket, and BMS is also equipped on the outside of the battery core group, crosses flowing plate and voltage acquisition plate.
The present invention provides a kind of Multifunctional battery dynamical system, external electrical equipment starting, the control of external electrical equipment
Device sends activation signal to the BMS battery management system of battery pack, and main control MCU is activated, main control MCU starting feedback outgoing message
To the controller of external electrical equipment, the controller of external electrical equipment can be sentenced according to the quantity of the outgoing message received
It is disconnected that there are several battery packs.
When only existing a battery pack, the controller of external electric equipment receives only this battery pack BMS cell tube
The outgoing message that reason system is sent, then feeds back signal to the main control MCU of this battery pack, and main control MCU is by signal
The front end IC of this battery pack is fed back to, front end IC controls the discharge switch and charge switch of switch module, and charging is opened
It closes, discharge switch is opened, battery pack normal power supply.
When there are two or more battery pack, the controller of external electric equipment receives two or more
A outgoing message, the main control MCU of the BMS battery management system of all battery packs are in working condition, and front end IC acquires battery core
The information such as electric current, voltage, the electricity of group, then communication connection between the main control MCU of each battery pack, transmits mutually battery pack
The information of battery core group, to judge the charge condition of each battery pack, the highest battery pack of electricity is worked normally, the low electricity of electricity
The main control MCU of the BMS battery management system of Chi Bao issues signal, and the charge switch for making its front end IC control its switch module closes
From being electrically charged, the battery pack for the preventing electricity high battery pack low to electricity carries out short the battery pack for closing to keep all electricity low
Road charging.
With the highest battery pack continuous discharge of electricity, most start the highest battery pack of electricity when other battery packs are higher than
When, the master control MGU for most starting the BMS battery management system of the highest battery pack of electricity issues signal, puts its front end IC control
Electric switch is closed, and since there are parasitic diodes, can also be discharged before the battery of access does not discharge, it is therefore prevented that electricity
Circut breaking in the handoff procedure of pond.The master control MGU of the BMS battery management system of the highest battery pack of electricity issues letter at this time
Number, the discharge switch of its switch module is opened in the front end IC control of the BMS battery management system of the highest battery pack of electricity at this time,
The discharge switch for most starting the BMS battery management system of the highest battery pack of electricity is closed, it is therefore prevented that the highest electricity of electricity at this time
Chi Bao charges to its short circuit.
The present invention increases and decreases a battery pack, all will not influence the charging of system, so that the switching of battery pack is more
Convenience.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Multifunctional battery dynamical system of the invention.
Fig. 2 is the knot of the BMS battery management system of multiple batteries in parallel connection packets of Multifunctional battery dynamical system of the invention
Structure schematic diagram.
Fig. 3 is that the structure of the BMS battery management system of the single battery packet of Multifunctional battery dynamical system of the invention is shown
It is intended to.
Fig. 4 is that the structure of the BMS battery management system of the single battery packet of Multifunctional battery dynamical system of the invention is shown
It is intended to.
Fig. 5 is the switching molding of the BMS battery management system of the single battery packet of Multifunctional battery dynamical system of the invention
The structural schematic diagram of block.
Fig. 6 is the structural schematic diagram of the single battery packet of Multifunctional battery dynamical system of the invention.
Specific embodiment
The present invention is further elaborated and is illustrated with Figure of description combined with specific embodiments below:
Please refer to Fig. 1,2,5, a kind of Multifunctional battery dynamical system, including several battery packs in parallel, each battery
Bao Jun includes BMS battery management system, and the BMS battery management system includes master control MGU, the master control MGU of each battery pack it
Between communication connection.
The BMS battery management system further includes front end IC, switch module and battery core group, the main control MCU and it is described before
Be electrically connected between the IC of end, multiple pins in parallel of the front end IC each battery core of battery core group positive and negative end, it is described
Front end IC acquires the electric signal of single battery core and entire battery core group, and collected electric signal is fed back to the master by the front end IC
MCU is controlled, the negative pole end of the battery core group is in series with acquisition resistance, and the two of them pins in parallel of the front end IC is in acquisition resistance
Both ends, collected current signal feeds back to the main control MCU by the front end IC.
The switch module includes discharge switch and charge switch, and the discharge switch includes electric discharge metal-oxide-semiconductor Q1, described to fill
Electric switch includes charging metal-oxide-semiconductor Q2, the electric discharge metal-oxide-semiconductor Q1 and charging metal-oxide-semiconductor Q2 is N-channel type field-effect tube, described to put
The source electrode of electric metal-oxide-semiconductor Q1 connects the acquisition resistance R3, the drain electrode connection charging metal-oxide-semiconductor Q2's of the electric discharge metal-oxide-semiconductor Q1
The source electrode of drain electrode, the charging metal-oxide-semiconductor Q1 connects external equipment, the electric discharge metal-oxide-semiconductor Q1 and the charging MOS by power supply line
The grid of pipe Q2 is separately connected the different control pins of the front end IC, and the main control MCU receives activation signal, the master control
MCU exports control signal to the front end IC, and the front end IC is by output level to the electric discharge metal-oxide-semiconductor Q1 and charging MOS
Pipe Q2 is to control the on and off of the electric discharge metal-oxide-semiconductor Q1 and the metal-oxide-semiconductor Q2 that charges.
The electric discharge metal-oxide-semiconductor Q1 and charging metal-oxide-semiconductor Q2 is N-channel type field-effect tube, and the front end IC exports high level
To the grid of the electric discharge metal-oxide-semiconductor Q1 and the metal-oxide-semiconductor Q2 that charges, the source of the electric discharge metal-oxide-semiconductor Q1 and the metal-oxide-semiconductor Q2 that charges can be connected
Pole and drain electrode, to realize the effect of switch.
The family chips such as model FREESCA, S9S12G128FOMLH of the main control MCU, the model of the front end IC
For family chips such as AN49503A, LQFP80.
The switch module further includes having precharge metal-oxide-semiconductor Q5, the precharge metal-oxide-semiconductor Q5 to be connected in parallel on the electric discharge MOS
Between the source electrode and drain electrode of pipe Q1, the drain electrode of the precharge metal-oxide-semiconductor Q5 is connected to the charging metal-oxide-semiconductor Q2 and the electric discharge
Between the drain electrode of metal-oxide-semiconductor Q1, the drain electrode of the precharge metal-oxide-semiconductor Q5 is also in series with preliminary filling resistance R5, the precharge metal-oxide-semiconductor Q5
Grid connect one of control pin of the front end IC, the main control MCU receives activation signal, the main control MCU
Control signal is exported to the front end IC, the front end IC output level control precharge metal-oxide-semiconductor Q5 conducting.The precharge
Metal-oxide-semiconductor Q5 is N-channel type field-effect tube.
Discharge switch, charge switch and the precharge switch of the switch module further include that relay etc. may be implemented to switch
The switch of effect.
Fig. 3,4 are please referred to, the BMS battery management system further includes BMS power supply module, and the one of the BMS power supply module
End connects the positive terminal of the battery core group, and the other end of the BMS power supply module connects the main control MCU, the BMS power supply mould
Block includes decompression chip and voltage stabilizing chip, and the Current Voltage after the BMS power supply module lowering and stabilizing blood pressure is to member each in system
Device power supply.The model TLV70450DBVR of the decompression chip.
The BMS battery management system further includes 12V power module, the 12V power module and the BMS power supply module
Between be also connected with optical coupling isolator, the 12V power module controls the optical coupling isolator conducting and supplies to control the BMS
Electric module starting.
The collector of the phototriode of the optical coupling isolator connects the BMS power supply module, the optical coupling isolator
Phototriode emitter ground connection, the anode of the light emitting diode of the optical coupling isolator connects the 12V power module,
The cathode of the light emitting diode of the optical coupling isolator is grounded, the anode of the light emitting diode of the optical coupling isolator and described
First diode D1 and first resistor R1 are also in series between 12V power module, the light emitting diode of the optical coupling isolator
First capacitor C1 is parallel between anode and cathode.
The main control MCU of each battery pack is also connected with isolation communication module, passes through between the main control MCU of each battery pack
Communication module is isolated and carries out data and signal transmission, the main control MCU of each battery pack passes through isolation communication module and outside is set
Standby to carry out data and signal transmission, the mode for carrying out data and signal transmission is isolated can bus communication, is also possible to bluetooth biography
Defeated, wireless transmission etc. mode.
The BMS battery management system further includes SOC display module, between the SOC display module and the main control MCU
It being electrically connected, for the SOC display module for showing battery package informatin, the BMS battery management system further includes key module,
It is electrically connected between the key module and the main control MCU, the other end ground connection of the key module.
It further include upper PC end system, RTC Real Time Clock System, storage system and blue tooth transmission system, the upper PC
It is electrically connected between end system and the BMS battery management system, the upper PC end system is by the BMS battery management system
The battery package informatin that feedback is come is uploaded to cloud platform in real time.By RTC real-time clock the time of making the product, reality can be seen in computer end
When time, battery pack runing time.Memory is used to the charge status of real-time storage battery pack interior for a period of time, Yi Ji electricity
It date, the time of pond packet charge and discharge, all records.Blue tooth transmission system can be realized logical with the cell phone application end of user
News monitor the state of the battery pack of cell power systems anywhere or anytime.
BMS battery management system has 422 Integrated Service Digital Network interface of RS232 RS485 CAN2.0, convenient to connect with computer,
Read monomer battery voltage, battery core capacity, charge and discharge cycles number, battery pack temperature, mileage travelled, battery package location, SOH,
SOC etc..422 Integrated Service Digital Network interface communication of RS232 RS485 CAN2.0 can be passed through with instrument board.Function is set with the period of time for approval
Can, there is identification charger, load identity authentication function.Battery can be used in a variety of situations, such as: office UPS, open air
The function of a multi-purpose pack is really realized in power supply, photovoltaic energy storage, family's energy storage.And transmission mode diversification, there is bluetooth to pass
Defeated, wireless transmission, GPS transmission, 2G transmission, 3G transmission, 4G transmission, 5G transmission etc. mode.
Referring to FIG. 6, each battery pack includes upper cover 3, main casing 9 and lower cover 10, the upper cover 3 and the lower cover 10
The both ends of the main casing 9 are separately mounted to form one for placing the cavity of battery core group.
The side of the upper cover 3 is equipped with handle 1, and the side of the upper cover 3 is additionally provided with upper cover decoration 2, it is described on
Water proof ring 4 is provided between the other side of lid 3 and the main casing 9, the other side of the upper cover 3 is also equipped with silica gel piece 5 and ring
Oxygen plate 15 is provided with charge and discharge electric connection 12 on the lower cover 10, is provided with water proof ring 4 and silica gel piece 11 on the lower cover 10.It is anti-
Hydrosphere 4 and silica gel piece 11 effectively raise the safety of battery pack structure.
Bracket 8 is installed on the outside of the battery core group, the outside of the bracket 8 is also equipped with nickel sheet 7, the battery core group it is outer
Side is also equipped with BMS6, crosses flowing plate 13 and voltage acquisition plate 14.
The present invention provides a kind of Multifunctional battery dynamical system, external electrical equipment starting, the control of external electrical equipment
Device sends activation signal to the BMS battery management system of battery pack, and main control MCU is activated, main control MCU starting feedback outgoing message
To the controller of external electrical equipment, the controller of external electrical equipment can be sentenced according to the quantity of the outgoing message received
It is disconnected that there are several battery packs.
When only existing a battery pack, the controller of external electric equipment receives only this battery pack BMS cell tube
The outgoing message that reason system is sent, then feeds back signal to the main control MCU of this battery pack, and main control MCU is by signal
The front end IC of this battery pack is fed back to, front end IC controls the discharge switch and charge switch of switch module, and charging is opened
It closes, discharge switch is opened, battery pack normal power supply.
When there are two or more battery pack, the controller of external electric equipment receives two or more
A outgoing message, the main control MCU of the BMS battery management system of all battery packs are in working condition, and front end IC acquires battery core
The information such as electric current, voltage, the electricity of group, then communication connection between the main control MCU of each battery pack, transmits mutually battery pack
The information of battery core group, to judge the charge condition of each battery pack, the highest battery pack of electricity is worked normally, the low electricity of electricity
The main control MCU of the BMS battery management system of Chi Bao issues signal, and the charge switch for making its front end IC control its switch module closes
From being electrically charged, the battery pack for the preventing electricity high battery pack low to electricity carries out short the battery pack for closing to keep all electricity low
Road charging.
With the highest battery pack continuous discharge of electricity, most start the highest battery pack of electricity when other battery packs are higher than
When, the main control MCU for most starting the BMS battery management system of the highest battery pack of electricity issues signal, puts its front end IC control
Electric switch is closed, and since there are parasitic diodes, can also be discharged before the battery of access does not discharge, it is therefore prevented that electricity
Circut breaking in the handoff procedure of pond.The main control MCU of the BMS battery management system of the highest battery pack of electricity issues letter at this time
Number, the discharge switch of its switch module is opened in the front end IC control of the BMS battery management system of the highest battery pack of electricity at this time,
The discharge switch for most starting the BMS battery management system of the highest battery pack of electricity is closed, it is therefore prevented that the highest electricity of electricity at this time
Chi Bao charges to its short circuit.
The present invention increases and decreases a battery pack, all will not influence the charging of system, so that the switching of battery pack is more
Convenience.
It is infinitely in parallel that the present invention realizes battery pack, and single battery is accomplished within 15KG, takes conveniently, user can
With quick-replaceable battery.The parameters such as voltage, the temperature inside battery pack can be timely known by BMS battery management system,
Allow user that can be better understood by the service condition of battery pack, the charge and discharge number of reasonable utilization battery pack realizes battery pack
Standardization, allows different electrical equipments to use.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. a kind of Multifunctional battery dynamical system, it is characterised in that: including several battery packs in parallel, each battery pack is wrapped
BMS battery management system is included, the BMS battery management system includes main control MCU, is communicated between the main control MCU of each battery pack
Connection；
The BMS battery management system further includes front end IC, switch module and battery core group, the main control MCU and the front end IC
Between be electrically connected, the positive and negative end of multiple pins in parallel of the front end IC in each battery core of battery core group, the front end
IC acquires the electric signal of single battery core and entire battery core group, and collected electric signal is fed back to the master control by the front end IC
MCU, the negative pole end of the battery core group are in series with acquisition resistance, and the two of them pins in parallel of the front end IC is in acquisition resistance
Collected current signal is fed back to the main control MCU by both ends, the front end IC；
The switch module includes discharge switch and charge switch, the control terminal difference of the discharge switch and the charge switch
The different control pins of the front end IC are connected, one end of the discharge switch connects the other end of the acquisition resistance, described
The other end of discharge switch connects one end of the charge switch, and the main control MCU receives activation signal, the main control MCU
Control signal is exported to the front end IC, the front end IC by output level to the discharge switch and the charge switch from
And control the on and off of the discharge switch and the charge switch.
2. Multifunctional battery dynamical system as described in claim 1, it is characterised in that: the discharge switch and the charging are opened
Pass is metal-oxide-semiconductor, and the source electrode of the discharge switch connects the acquisition resistance, and the drain electrode of the discharge switch connects the charging
The source electrode of the drain electrode of switch, the charge switch connects external equipment by power supply line, and the discharge switch and the charging are opened
The grid of pass is separately connected the different control pins of the front end IC.
3. Multifunctional battery dynamical system as claimed in claim 2, it is characterised in that: the switch module further includes having preliminary filling
Electric switch, the precharge switch be metal-oxide-semiconductor, the precharge switch be connected in parallel on the discharge switch source electrode and drain electrode it
Between, the drain electrode of the precharge switch is connected between the charge switch and the drain electrode of the discharge switch, the precharge
The drain electrode of switch is also in series with preliminary filling resistance, and one of control that the grid of the precharge switch connects the front end IC is drawn
Foot, the main control MCU receive activation signal, and the main control MCU exports control signal to the front end IC, and the front end IC is defeated
Level control precharge switch conducting out.
4. Multifunctional battery dynamical system as described in claim 1, it is characterised in that: the BMS battery management system also wraps
Include BMS power supply module, one end of the BMS power supply module connects the positive terminal of the battery core group, the BMS power supply module it is another
One end connects the main control MCU, and the BMS power supply module includes decompression chip and voltage stabilizing chip, by the BMS power supply module
Current Voltage after lowering and stabilizing blood pressure is powered to component each in system.
5. Multifunctional battery dynamical system as claimed in claim 4, it is characterised in that: the BMS battery management system also wraps
12V power module is included, optical coupling isolator, the 12V are also connected between the 12V power module and the BMS power supply module
Power module controls the optical coupling isolator conducting to control the BMS power supply module starting.
6. Multifunctional battery dynamical system as claimed in claim 5, it is characterised in that: photosensitive three pole of the optical coupling isolator
The collector of pipe connects the BMS power supply module, the emitter ground connection of the phototriode of the optical coupling isolator, the optocoupler
The anode of the light emitting diode of isolator connects the 12V power module, the cathode of the light emitting diode of the optical coupling isolator
It is grounded, is also in series with first diode between the positive and described 12V power module of the light emitting diode of the optical coupling isolator
And first resistor, first capacitor is parallel between the anode and cathode of the light emitting diode of the optical coupling isolator.
7. Multifunctional battery dynamical system as described in claim 1, it is characterised in that: the main control MCU of each battery pack also connects
It is connected to isolation communication module, data and signal transmission are carried out by isolation communication module between the main control MCU of each battery pack,
The main control MCU of each battery pack passes through isolation communication module and external equipment carries out data and signal transmission.
8. Multifunctional battery dynamical system as described in claim 1, it is characterised in that: the BMS battery management system also wraps
SOC display module is included, is electrically connected between the SOC display module and the main control MCU, the SOC display module is for showing
Show battery package informatin, the BMS battery management system further includes key module, between the key module and the main control MCU
It is electrically connected, the other end ground connection of the key module.
9. Multifunctional battery dynamical system as described in claim 1, it is characterised in that: further include upper PC end system, RTC reality
When clock system, storage system and Transmission system, electrically connect between the upper PC end system and the BMS battery management system
It connects, the battery information that BMS battery management system transmission comes is uploaded to cloud platform by the upper PC end system.
10. Multifunctional battery dynamical system as described in claim 1, it is characterised in that: the battery pack including several parallel connections,
Each battery pack includes upper cover, main casing and lower cover, and the upper cover and the lower cover are separately mounted to the both ends of the main casing
To form one for placing the cavity of battery core group；
The side of the upper cover is equipped with handle, and the side of the upper cover is additionally provided with upper cover decoration, the upper cover it is another
Water proof ring is provided between side and the main casing, the other side of the upper cover is also equipped with silica gel piece and epoxy plate, the lower cover
On be provided with charge and discharge electric connection, be provided with water proof ring and silica gel piece on the lower lid, bracket be installed on the outside of the battery core group, institute
It states and is also equipped with nickel sheet on the outside of bracket, BMS is also equipped on the outside of the battery core group, crosses flowing plate and voltage acquisition plate.
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