CN106786967A - A kind of cell managing device and the batter-charghing system with the managing device - Google Patents
A kind of cell managing device and the batter-charghing system with the managing device Download PDFInfo
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- CN106786967A CN106786967A CN201710033174.1A CN201710033174A CN106786967A CN 106786967 A CN106786967 A CN 106786967A CN 201710033174 A CN201710033174 A CN 201710033174A CN 106786967 A CN106786967 A CN 106786967A
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- 238000004891 communication Methods 0.000 claims abstract description 72
- 230000000284 resting effect Effects 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 37
- 238000001914 filtration Methods 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 5
- 101150090280 MOS1 gene Proteins 0.000 description 20
- 101100401568 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MIC10 gene Proteins 0.000 description 20
- 230000000630 rising effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005059 dormancy Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000002618 waking effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
Classifications
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- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H02J7/0085—
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The present invention is applied to battery charging field, there is provided a kind of cell managing device, and the battery management bag apparatus include the battery pack with positive output pole and negative output pole, battery management module, wake module and charge switch with communication terminal；The battery pack includes the cell of multiple series connection；The battery management module, respectively with the positive pole of each cell, the base stage of the charge switch and the wake module are connected, and from resting state are changed into working condition for the wake-up signal according to the wake module and are exported the wake-up signal and output control signals to the base stage of the charge switch to control the charge switch to close according to the charging signals for detecting；The wake module, during for receiving communication signal by the communication terminal, changing into working condition and exporting the wake-up signal to the battery management module from resting state；The charge switch is connected between the battery pack and negative output pole.
Description
Technical field
The invention belongs to battery charging field, more particularly to a kind of cell managing device and the electricity with the managing device
Pond charging system.
Background technology
Lithium battery technology is fast-developing in recent years, has been widely used for automobile, mobile phone, electric motor car and garden instrument etc. each
Individual field.Battery management system (BMS) direct detection and the overall process of management lithium battery work, supervise to battery set charge/discharge
Control and protection, extend battery life, safeguard cell safety.And charger is used as the auxiliary facility of battery pack, with battery management system
System cooperates the charging and protection completed to battery pack.Existing group charger is most of to provide communication interface, uses
With the communication between completion and BMS, the monitoring and management to BMS to battery pack charging process are realized.
As shown in figure 1, existing batter-charghing system includes charger, battery pack and BMS, drawn on charger construction and filled
Electric positive pole CHARGE+, communication signal end SDL and charging negative pole CHARGE) three contact chip males, and BMS protection boards are generally tied
Fitted together with battery pack on structure, it is externally same to draw battery anode BAT+, communication signal end SDL and battery electrode
Tri- females of BAT-.Wherein communication signal SDL is used to detect whether battery pack accesses, and when charger is connected with battery pack, leads to
Cross SDL communication signals and wake up battery management system, so that closure switch are realizing the charging of battery pack.
But, if three charging contact existing defects of charger, such as contacting leaf length and differ larger, this will lead
BAT+, BAT- and SDL of cause battery pack can not simultaneously touch CHARGE+, CHARGE- and SDL of charger.Because SDL is logical
The supply voltage for interrogating signal derives from charger internal VCC, if charger SDL contacts male touches battery pack first
During SDL females, although this can produce a leading pulse edge in SDL, and signal pulse edge can wake up BMS systems, make
It sends instruction closure switch, if but now BAT+ or BAT- are also not exposed to CHARGE+ or CHARGE-, charge
Device and battery bag can not set up communication, and single-chip microcomputer can enter park mode again.After single-chip microcomputer sleep, even if BAT+ or BAT-
CHARGE+ or CHARGE- is touched again, single-chip microcomputer will not also be waken up, now charger can not charge for battery pack.
The content of the invention
The embodiment of the present invention provides a kind of cell managing device and the batter-charghing system with the managing device, it is intended to
Solve the problems, such as that in the case where the engagement sequence of charger and battery pack arbitrarily changes cell managing device can be waken up.
The embodiment of the present invention is achieved in that a kind of cell managing device, and the cell managing device includes having just
Output stage and the battery pack of negative output pole, battery management module, wake module and charge switch with communication terminal；
The battery pack includes the cell of multiple series connection；
The battery management module, respectively with the positive pole of each cell, the base stage of the charge switch and described
Wake module is connected, and is changed into from resting state for the wake-up signal according to the wake module and is called out described in working condition and output
The charging signals that signal and the basis of waking up are detected output control signals to the base stage of the charge switch to control the charging to open
Close and close；
The wake module, during for receiving communication signal by the communication terminal, work shape is changed into from resting state
State simultaneously exports the wake-up signal to the battery management module；
The charge switch is connected between the battery pack and negative output pole.
The embodiment of the present invention also provides a kind of batter-charghing system, and the batter-charghing system includes above-mentioned battery management
Device and the charger with positive charging pole, negative charging pole and transmission signal end, it is positive output pole when cell managing device, negative defeated
Go out pole and communication terminal to correspond respectively when being connected with the positive charging pole of charger, negative charging pole and transmission signal end, it is described to fill
Electrical equipment charges to the battery pack in cell managing device.
Embodiment of the present invention cell managing device and batter-charghing system, are connected by battery pack and the battery management module
Connect, and when the wake module receives communication signal by the communication terminal, working condition and defeated is changed into from resting state
Go out the wake-up signal to the battery management module, so that battery management module controls the charge switch closure, realize
Charging of the charger to battery pack under normal circumstances, has equally also accomplished arbitrarily to be converted with the engagement sequence of battery pack when charger
When, battery management system can be also waken up, the charging process of battery pack is completed, the design defect of charger can be made up, reduction is filled
The design cost of electrical apparatus interface.
Brief description of the drawings
Fig. 1 is the structural representation of the batter-charghing system that prior art is provided.
Fig. 2 is the structural representation of cell managing device provided in an embodiment of the present invention.
Fig. 3 is the circuit diagram of cell managing device provided in an embodiment of the present invention.
Fig. 4 is the circuit diagram of charger provided in an embodiment of the present invention.
Fig. 5 is the structural representation of batter-charghing system provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present invention provides a kind of cell managing device 10 of embodiment, as shown in Fig. 2 the cell managing device 10 includes
The battery management includes the battery pack 1 with positive output pole BAT+ and negative output pole BAT-, battery management module 2, with logical
Interrogate the wake module 3 and charge switch 4 of end SDL；
The battery pack 1 includes the cell of multiple series connection；
The battery management module 2, it is the charge switch 4 and described call out respectively with the positive pole of each cell
Module 3 of waking up is connected, and working condition is changed into and according to detecting from resting state for the wake-up signal according to the wake module 3
Charging signals output control signals to the base stage of the charge switch 4 to control the charge switch 4 to close；
The wake module 3, during for receiving communication signal by the communication terminal SDL, work is changed into from resting state
Make state and export the wake-up signal to the battery management module 2；
The charge switch 4 is connected between the battery pack 1 and negative output pole BAT-.
In specific implementation, the cell managing device 10 also includes the first filtration module 5, first filtration module 5
First end be connected between the positive output pole BAT+ and the battery pack 1, the connection of the second end of first filtration module 5
Ground, the 3rd end of first filtration module 5 is connected with the battery management module 2.By the first filtration module 5 with outside suppressing
Boundary's impulse disturbances, so as to prevent extraneous momentary pulse voltage from burning out the battery management module 2.
The cell managing device 10 also includes multiple second filtration modules 6, and each second filtration module 6 is correspondingly
It is connected with the positive pole and the battery management module 2 of each cell, and each second filtration module 6 is connected to ground, and leads to
The second filtration module 6 is crossed to suppress extraneous impulse disturbances.
The cell managing device 10 also includes filtering current limliting module 7, and the filtering current limliting module 7 connects the wake-up mould
Between block 3 and communication terminal SDL, and the filtering current limliting module 7 is grounded.Communication signal is filtered by filtering current limliting module 7
Ripple and current limliting are suppressing extraneous impulse disturbances.
In specific implementation, as shown in figure 3, the battery management module 2 is battery management chip U1, the wake module
3 is singlechip chip U2, and battery management chip U1 has such as lower terminal：VCC：Chip power supply, VB1-VB7：7 cells
Positive pole is input into, VSS：Ground, WKUP：Chip wakes up, SCL：IIC communicates clock line, SDA：IIC communication data lines, VDD33：3.3V
Voltage output, VAO：Analog voltage mixing output, DSG：Control of discharge, CHG：Control end；Singlechip chip U2 has such as lower end
Son：VCC：3.3V powers, GND：Ground, SCL：IIC communicates clock line, SDA：IIC communication data lines, 5 pin GPIO：Collection U1VAO
Pin voltage, 2 pin GPIO：Wake up U1 chips, 3 pin GPIO：Waken up for U2 chips and SDL communications, 3 pin GPIO：It is unused.
As shown in figure 3, battery pack described in the present embodiment includes the first cell 11, second comonomer battery 12, the 3rd list
Body battery 13, the 4th cell 14, the 5th cell 15, the 6th cell 16 and the 7th cell 17, each
Two filtration modules 6 are connected with the positive pole and the battery management module 2 of each cell correspondingly, each second filtering
Module 6 includes the second filter resistance and the 3rd filter capacitor, and one end of second filter resistance and corresponding cell are just
Pole connects, and the other end of second filter resistance connects with one end of the 3rd filter capacitor and the battery management module respectively
Connect, the other end of the 3rd filter capacitor ground connection, that is to say, that the one of the positive pole of the first cell 11 and the second filter resistance R4
End connection, the other end of the second filter resistance R4 one end respectively with the 3rd filter capacitor C3 and the VB7 of battery management chip U1
Pin is connected, the other end ground connection of the 3rd filter capacitor C3；One end of the positive pole of second comonomer battery 12 and the second filter resistance R5
Connection, the other end of the second filter resistance R5 one end respectively with the 3rd filter capacitor C4 and the VB6 pin of battery management chip U1
Connection, the other end ground connection of the 3rd filter capacitor C4；One end of the positive pole of Third monomer battery 13 and the second filter resistance R6 connect
Connect, the other end of the second filter resistance R6 connects with one end of the 3rd filter capacitor C6 and the VB5 pin of battery management chip U1 respectively
Connect, the other end ground connection of the 3rd filter capacitor C6；One end of the positive pole of the 4th cell 14 and the second filter resistance R11 connect
Connect, the other end of the second filter resistance R11 connects with one end of the 3rd filter capacitor C7 and the VB4 pin of battery management chip U1 respectively
Connect, the other end ground connection of the 3rd filter capacitor C7；One end of the positive pole of the 5th cell 15 and the second filter resistance R15 connect
Connect, the other end of the second filter resistance R15 connects with one end of the 3rd filter capacitor C9 and the VB3 pin of battery management chip U1 respectively
Connect, the other end ground connection of the 3rd filter capacitor C9；One end of the positive pole of the 6th cell 16 and the second filter resistance R16 connect
Connect, the other end of the second filter resistance R16 one end respectively with the 3rd filter capacitor C10 and the VB2 pin of battery management chip U1
Connection, the other end ground connection of the 3rd filter capacitor C10；One end of the positive pole of the 7th cell 17 and the second filter resistance R17
Connection, the other end of the second filter resistance R17 one end respectively with the 3rd filter capacitor C11 and the VB1 of battery management chip U1
Pin is connected, the other end ground connection of the 3rd filter capacitor C11.
As shown in figure 3, first filtration module 5 includes the first filter resistance R3, the first filter capacitor C1 and the second filter
Ripple electric capacity C2, between the positive output pole and the battery pack 1, described first filters for one end of the first filter resistance R3
One end of resistance R3 one end respectively with the first filter capacitor C1, one end of the second filter capacitor C2 and the battery management chip
The other end of the VCC pin connection of U1, the other end of the first filter capacitor C1 and the second filter capacitor C2 is connected to ground respectively.
As shown in figure 3, the SDA pin of the battery management chip U1 are connected by the SDA pin of resistance R7 and singlechip chip U2
Connect, the SCL pin of the battery management chip U1 are connected by resistance R9 with the SCL pin of singlechip chip U2, the battery management
The WKUP pin of chip U1 are connected by resistance R12 with the 2 pin GPIO of singlechip chip U2, the VAO of the battery management chip U1
Pin is connected by resistance R13 with the 5 pin GPIO of singlechip chip U2.
As shown in figure 3, the 3.3V voltages that the VCC pin of singlechip chip U2 are exported with the battery management chip U1 are connected,
3.3V voltages are connected with one end of electric capacity C5, the other end ground connection of electric capacity C5.
As shown in figure 3, the filtering current limliting module 7 includes the first current-limiting resistance R10, the second current-limiting resistance R8, the 3rd filter
One end of ripple resistance R14 and the 4th filter capacitor C8, the first current-limiting resistance R10 are connected i.e. described with the wake module 3
One end of first current-limiting resistance R10 is connected with the 3 pin GPIO of singlechip chip U2, the other end of the first current-limiting resistance R10
The one end with one end, one end of the 4th filter capacitor C8 and the second current-limiting resistance R8 of the 3rd filter resistance R14 is connected respectively, the
The other end of three filter resistance R14 and the other end ground connection of the 4th filter capacitor C8, the other end conduct of the second current-limiting resistance R8
The communication terminal SDL of the wake module 3.Cell managing device 10 also includes voltage-regulator diode D1, the voltage-regulator diode D1's
Anode is connected with the other end of the first current-limiting resistance R10 and one end of the second current-limiting resistance R8 respectively.
As shown in figure 3, cell managing device 10 also includes first resistor R18 and second resistance R19, first resistor R18's
One end is connected with the battery management module 2 to receive charging signals, and the other end of first resistor R18 is opened with the charging respectively
Close one end connection of 4 base stage G and second resistance R19, other end connection and the charge switch 4 of the second resistance R19
Source S and the negative output pole BAT- connection.
In specific implementation, the charge switch 4 is specially triode MOS1, the source S of triode MOS1 and described the
The other end connection of two resistance R19, the drain D ground connection of triode MOS1.
That is, being powered with to battery management module 2 because battery pack 1 is connected with the battery management module, work as institute
When stating wake module 3 and receiving communication signal by the communication terminal SDL, change into working condition from resting state and export described
Wake-up signal to the battery management module 2, the battery management module 2 is waken up, the output of the battery management module 2 3.3V
Supply voltage to the wake module 3 powered to the communication terminal SDL, be then waken up the battery management module when described
2 when receiving charging signals, output control signal to control the charge switch 4 to close, when the positive charging pole of battery pack
When on CHARGE+, CHARGE+, CHARGE- of negative charging pole CHARGE- connections charger, charger charges to battery pack.
The cell managing device of the embodiment of the present invention, is connected by battery pack and the battery management module, and when described
When wake module receives communication signal by the communication terminal, change into working condition from resting state and export described wake-up and believe
Number to the battery management module, so that battery management module controls the charge switch closure, realize and fill under normal circumstances
Charging of the electrical equipment to battery pack, has equally also accomplished, when the engagement sequence of charger and battery pack is arbitrarily converted, can also wake up
Battery management system, completes the charging process of battery pack, can make up the design defect of charger, reduces setting for charger interface
Meter cost.
The present invention also provides a kind of batter-charghing system of embodiment, as shown in figure 5, the batter-charghing system is including upper
The cell managing device 10 stated and the charging with positive charging pole CHARGE+, negative charging pole CHARGE- and transmission signal end SDL
Device 20, when positive output pole BAT+, the negative output pole BAT- and communication terminal SDL of cell managing device are corresponded and charger respectively
Positive charging pole CHARGE+, negative charging pole CHARGE- and transmission signal end SDL when connecting, the charger 20 is to battery management
Battery pack 1 in device 10 is charged.
As shown in figure 4, the charger 20 include single-chip microprocessor MCU, single-chip microprocessor MCU first end as transmission signal end SDL,
Second end connecting valve unit of single-chip microprocessor MCU, disconnection and closure for controlling switch unit, the 3rd end of single-chip microprocessor MCU
Ground connection, the 4th end of single-chip microprocessor MCU connects one end of pressure unit, and the other end of pressure unit is connected to one end of dc source
With the positive charging pole CHARGE+ of charger 20, switch element is connected to one end of dc source and the positive charging pole of charger 20
Between CHARGE+；The charger 20 also includes the first divider resistance R1, the second divider resistance R2 and the second voltage-stabiliser tube D2, the
One end of one divider resistance R1 is connected between one end of switch element and the positive charging pole CHARGE+ of charger, the first partial pressure
The other end of resistance R1 is connected with one end of the second divider resistance R2, and the other end of the second divider resistance R2 is connected to dc source
The other end and the negative charging pole CHARGE- of charger 20 between, one end of the second voltage-stabiliser tube D2 and the second divider resistance R2's
One end connects, and the other end of the second voltage-stabiliser tube D2 is connected with the other end of the second divider resistance R2.That is battery management is worked as
During the insertion charger 20 of device 10, cell managing device 10 sends instruction of shaking hands by transmission signal end SDL to charger 20, fills
After electrical equipment 20 receives instruction, the instruction of response is replied, now charger and cell managing device 10 are communicated successfully or shaken hands into
Work(, opens switch element, is that battery pack 1 charges；When cell managing device 10 is separated with charger 20, charger 20 can't detect
After communication signal, switch element is may turn off.In addition when battery pack 1 is full of, cell managing device 10 passes through its communication terminal SDL
Send battery bag and have been filled with instruction, after charger 20 receives the instruction, closing switch unit.
In specific implementation, in the case of charging normal, the positive output pole BAT+ of cell managing device 10, negative output pole
BAT- and communication terminal SDL correspond positive charging pole CHARGE+, negative charging pole CHARGE- and the transmission with charger 20 respectively
When signal end SDL is connected, now battery pack 1 is the transmission of charger 20 by the first divider resistance R1 and the second divider resistance R2
Signal end SDL provides voltage, and produces a leading pulse edge signal, and the signal is linked into the logical of cell managing device 10 simultaneously
News end SDL, when the singlechip chip U2 of cell managing device 10 recognizes this pulse along signal, will wake up from resting state,
It is in running order, while battery management chip U1 is waken up, when the battery management chip U1 being waken up recognizes charging signals
Control signal will be sent and give CHARGE interfaces, to close triode MOS1, so as to realize that charger 20 charges for battery pack 1.
When charger 20 and battery pack 1 are abnormal contacts charging, six kinds of situation engagement sequences can be divided into and accounted for.
The first engagement sequence：The positive output pole BAT+ of battery pack 1 and the positive charging pole CHARGE+ of charger 20 first connect
Connect, reconnect the communication terminal SDL of the cell managing device 10 and transmission signal end SDL of charger 20, be most followed by the negative of battery pack 1
The negative charging pole CHARGE- of output stage BAT- and charger 20.When the positive output pole BAT+ of battery pack 1 and just filling for charger 20
When electrode CHARGE+ is contacted, communication signal is in low level, does not have rising edge signal, and the system of cell managing device 10 is in stops
Dormancy state, charging MOS1 disconnects；When the communication terminal SDL of cell managing device 10 is connected with the transmission signal end SDL of charger 20
When, communication signal is changed into high level, produces rising edge of a pulse signal, wakes up cell managing device 10, charger 20 and cell tube
Reason device 10 sets up communication, closure charging MOS1；Negative output pole BAT- and the negative charging pole of charger 20 when battery pack 1
When CHARGE- is finally contacted, charger 20 is immediately for battery pack 1 charges.
Second engagement sequence：The positive output pole BAT+ of battery pack 1 and the positive charging pole CHARGE+ of charger 20 first connect
Connect, then meet the negative output pole BAT- of the battery pack 1 and negative charging pole CHARGE- of charger 20, be most followed by cell managing device 10
Communication terminal SDL and charger 20 transmission signal end SDL.When the positive output pole BAT+ of battery pack 1 and just filling for charger 20
When electrode CHARGE+ is contacted, communication signal is in low level, does not have rising edge signal, and cell managing device 10 is in dormancy shape
State, charging MOS1 disconnects；When the negative output pole BAT- of battery pack 1 and the negative charging pole CHARGE- of charger 20 are contacted, due to
Charger 20 and cell managing device 10 have not set up communication, and charging MOS1 wouldn't be still in closed mode, charger 20
Battery pack 1 charges；When the communication terminal SDL of cell managing device 10 is finally connected with the transmission signal end SDL of charger 20, lead to
News signal is changed into high level, produces rising edge of a pulse signal, wakes up cell managing device 10, charger 20 and cell managing device
10 set up communication, close charging MOS1, and charger is immediately for battery pack charges.
The third engagement sequence：First connect the communication terminal SDL of cell managing device 10 and the transmission signal end of charger 20
SDL, then the positive output pole BAT+ of the battery pack 1 and positive charging pole CHARGE+ of charger 20 is met, most it is followed by the negative defeated of battery pack 1
Go out the negative charging pole CHARGE- of pole BAT- and charger 20.As the communication terminal SDL and the biography of charger 20 of cell managing device 10
When defeated signal end SDL is first connected, due to being originated without power supply, communication signal is in low level, does not have rising edge signal, cell tube
In a dormant state, charging MOS1 disconnects reason device 10；Positive output pole BAT+ and the positive charging pole of charger 20 when battery pack 1
When CHARGE+ is contacted, positive output pole BAT+ provides voltage to the communication terminal SDL of cell managing device 10, and communication signal is changed into high
Level, produces rising edge of a pulse signal, and cell managing device 10, charger 20 and cell managing device 10 are set up communication, closed
Close charging MOS1；When the negative output pole BAT- of battery pack 1 and the negative charging pole CHARGE- of charger 20 are finally contacted, charge
Device 20 is immediately for battery pack 1 charges.
4th kind of engagement sequence：First connect the communication terminal SDL of cell managing device 10 and the transmission signal end of charger 20
SDL, then the negative output pole BAT- of the battery pack 1 and negative charging pole CHARGE- of charger 20 is met, most it is followed by the just defeated of battery pack 1
Go out the positive charging pole CHARGE+ of pole BAT+ and charger 20.As the communication terminal SDL and the biography of charger 20 of cell managing device 10
When defeated signal end SDL is first connected, due to being originated without power supply, communication signal is in low level, does not have rising edge signal, cell tube
In a dormant state, charging MOS1 disconnects reason device 10；Negative output pole BAT- and the negative charging pole of charger 20 when battery pack 1
When CHARGE- is contacted, because charging MOS1 is still in closed mode, charger 20 wouldn't charge for battery pack；When battery pack 1
Positive output pole BAT+ and the positive charging pole CHARGE+ of charger 20 when finally contacting, the positive output pole BAT+ of battery pack 1 is electricity
The communication terminal SDL of pond managing device 10 provides voltage, and communication signal is changed into high level, produces rising edge of a pulse signal, wakes up electricity
Pond managing device 10, charger 20 and cell managing device 10 set up communication, close charging MOS1, and charger 20 is immediately electricity
Pond group 1 charges.
5th kind of engagement sequence：The negative output pole BAT- of the battery pack 1 and negative charging pole CHARGE- of charger 20 is first met,
The positive output pole BAT+ of the battery pack 1 and positive charging pole CHARGE+ of charger 20 is met again, is most followed by the logical of cell managing device 10
The transmission signal end SDL of news end SDL and charger 20.Negative output pole BAT- and the negative charging pole of charger 20 when battery pack 1
When CHARGE- is contacted, because charging MOS1 is still in closed mode, charger 20 wouldn't charge for battery pack；When battery pack 1
Positive output pole BAT+ and charger 20 positive charging pole CHARGE+ contact when, communication signal be in low level, there is no rising edge
Signal, in a dormant state, charging MOS1 disconnects cell managing device 10；When cell managing device 10 communication terminal SDL and fill
When the transmission signal end SDL of electrical equipment 20 is finally connected, the positive output pole BAT+ of battery pack 1 is the communication terminal of cell managing device 10
SDL provides voltage, and communication signal is changed into high level, produces rising edge of a pulse signal, wakes up cell managing device 10, charger 20
Communication is set up with cell managing device 10, charging MOS1 is closed, charger 20 is immediately for battery pack 1 charges.
6th kind of engagement sequence：The negative output pole BAT- of the battery pack 1 and negative charging pole CHARGE- of charger 20 is first met,
The communication terminal SDL of the cell managing device 10 and transmission signal end SDL of charger 20 is met again；Most it is followed by the positive output of battery pack 1
The positive charging pole CHARGE+ of pole BAT+ and charger 20.Negative output pole BAT- and the negative charging pole of charger 20 when battery pack 1
When CHARGE- is contacted, because charging MOS1 is still in closed mode, charger 20 wouldn't charge for battery pack 1；Work as cell tube
When the communication terminal SDL for managing device 10 is connected with the transmission signal end SDL of charger 20, due to being originated without power supply, communication signal
In low level, there is no rising edge signal, in a dormant state, charging MOS1 disconnects cell managing device 10；When battery pack 1
When the positive charging pole CHARGE+ of positive output pole BAT+ and charger 20 is finally contacted, the positive output pole BAT+ of battery pack 1 is battery
The communication terminal SDL of managing device 10 provides voltage, and communication signal is changed into high level, produces rising edge of a pulse signal, wakes up battery
Managing device 10, charger 20 and cell managing device 10 set up communication, close charging MOS1, and charger 20 is immediately battery
Group 1 charges.
In sum, in embodiments of the present invention, no matter the sequencing that is contacted with battery pack 1 of charger 20,
Cell managing device 10 can be finally waken up, so as to complete charging process of the charger 20 to battery pack 1.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of cell managing device, it is characterised in that：The cell managing device includes thering is positive output pole and negative output pole
Battery pack, battery management module, wake module and charge switch with communication terminal；
The battery pack includes the cell of multiple series connection；
The battery management module, respectively with the positive pole of each cell, the base stage of the charge switch and the wake-up
Module is connected, and is changed into working condition and is exported described wake-up from resting state for the wake-up signal according to the wake module and believes
Number and output control signals to the base stage of the charge switch to control the charge switch to close according to the charging signals that detect
Close；
The wake module, during for receiving communication signal by the communication terminal, working condition is changed into simultaneously from resting state
Export the wake-up signal to the battery management module；
The charge switch is connected between the battery pack and negative output pole.
2. cell managing device as claimed in claim 1, it is characterised in that the cell managing device also includes the first filtering
Module, the first end of first filtration module is connected between the positive output pole and the battery pack, first filtering
The second end connection ground of module, the 3rd end of first filtration module is connected with the battery management module.
3. cell managing device as claimed in claim 2, it is characterised in that first filtration module includes the first filtered electrical
Resistance, the first filter capacitor and the second filter capacitor, one end of first filter resistance is in the positive output pole and the battery
Between group, one end of first filter resistance one end respectively with the first filter capacitor, one end of the second filter capacitor and institute
State battery management module to connect, the other end of the other end of the first filter capacitor and the second filter capacitor is connected to ground respectively.
4. cell managing device as claimed in claim 1, it is characterised in that the cell managing device also includes multiple second
Filtration module, each second filtration module connects with the positive pole of each cell and the battery management module correspondingly
Connect, and each second filtration module is connected to ground.
5. cell managing device as claimed in claim 4, it is characterised in that each second filtration module includes the second filtered electrical
Resistance and the 3rd filter capacitor, one end of second filter resistance connect with the positive pole of corresponding cell, second filtering
The other end of resistance is connected with one end of the 3rd filter capacitor and the battery management module respectively, the 3rd filter capacitor it is another
End ground connection.
6. cell managing device as claimed in claim 1, it is characterised in that the cell managing device also includes filtering current limliting
Module, the filtering current limliting module is connected between the wake module and communication terminal, and the filtering current limliting module ground.
7. cell managing device as claimed in claim 6, it is characterised in that the filtering current limliting module includes the first current limliting electricity
Resistance, the second current-limiting resistance, the 3rd filter resistance and the 4th filter capacitor, one end of first current-limiting resistance and the wake-up mould
Block is connected, the other end of first current-limiting resistance one end respectively with the 3rd filter resistance, one end of the 4th filter capacitor and
One end connection of the second current-limiting resistance, the other end of the 3rd filter resistance and the other end ground connection of the 4th filter capacitor, the second limit
The other end of leakage resistance as the wake module communication terminal.
8. cell managing device as claimed in claim 7, it is characterised in that cell managing device also includes voltage-regulator diode,
The anode of the voltage-regulator diode connects with the other end of first current-limiting resistance and one end of second current-limiting resistance respectively
Connect.
9. cell managing device as claimed in claim 1, it is characterised in that cell managing device also includes first resistor and the
Two resistance, one end of first resistor is connected to receive charging signals, the other end point of first resistor with the battery management module
It is not connected with the base stage of the charge switch and one end of second resistance, other end connection and the charging of the second resistance
The source electrode of switch and the negative output pole connect.
10. a kind of batter-charghing system, it is characterised in that：The batter-charghing system includes such as claim 1-9 any one
Described cell managing device and the charger with positive charging pole, negative charging pole and transmission signal end, work as cell managing device
Positive output pole, negative output pole and communication terminal correspond positive charging pole, negative charging pole and transmission signal with charger respectively
During the connection of end, the charger charges to the battery pack in cell managing device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710033174.1A CN106786967B (en) | 2017-01-18 | 2017-01-18 | Battery management device and battery charging system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033174.1A CN106786967B (en) | 2017-01-18 | 2017-01-18 | Battery management device and battery charging system with same |
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| CN106786967A true CN106786967A (en) | 2017-05-31 |
| CN106786967B CN106786967B (en) | 2020-03-06 |
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| CN201710033174.1A Active CN106786967B (en) | 2017-01-18 | 2017-01-18 | Battery management device and battery charging system with same |
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| CN109347164A (en) * | 2018-10-31 | 2019-02-15 | 深圳拓邦股份有限公司 | A kind of battery pack awakening method, device, electrical equipment and garden equipment |
| CN110493739A (en) * | 2018-05-14 | 2019-11-22 | 优机国际有限公司 | The battery data transmission method of electronic waterborne sports equipment |
| CN110574217A (en) * | 2017-11-07 | 2019-12-13 | 株式会社Lg化学 | BMS awakens equipment, and including BMS and group battery of this BMS awakens equipment up |
| CN110881698A (en) * | 2018-08-21 | 2020-03-17 | 湖南中烟工业有限责任公司 | Split type low-temperature smoking set charging detection control method |
| CN113300432A (en) * | 2021-06-07 | 2021-08-24 | 苏州众鑫凯能源科技有限公司 | Method for detecting charging signal of cathode of battery protection board |
| CN116505107A (en) * | 2023-06-29 | 2023-07-28 | 深圳市岳松科技有限公司 | Battery BMS protection board and battery pack |
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| CN110574217A (en) * | 2017-11-07 | 2019-12-13 | 株式会社Lg化学 | BMS awakens equipment, and including BMS and group battery of this BMS awakens equipment up |
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