CN106505690A - A kind of car emergency startup power supply safety management system - Google Patents
A kind of car emergency startup power supply safety management system Download PDFInfo
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- CN106505690A CN106505690A CN201611216283.9A CN201611216283A CN106505690A CN 106505690 A CN106505690 A CN 106505690A CN 201611216283 A CN201611216283 A CN 201611216283A CN 106505690 A CN106505690 A CN 106505690A
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 13
- 239000004065 semiconductor Substances 0.000 claims description 93
- 230000005611 electricity Effects 0.000 claims description 32
- 238000005265 energy consumption Methods 0.000 claims description 20
- 238000005070 sampling Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000037361 pathway Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 101000908580 Homo sapiens Spliceosome RNA helicase DDX39B Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 102100021298 b(0,+)-type amino acid transporter 1 Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- H02J7/0026—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of car emergency startup power supply safety management system, for the management of set of cells and battery clamp, including：Control administrative unit, the first gate-controlled switch, the second gate-controlled switch and the first current sample；Storage battery clipping system, is connected with set of cells both positive and negative polarity respectively；The control administrative unit connects the control end of the first gate-controlled switch and the second gate-controlled switch respectively；First current sample is serially connected between charging end negative pole and battery electrode；The control administrative unit is also connected with storage battery clipping system；The storage battery clipping system also includes battery clamp state recognition unit and the 3rd controllable switch unit；3rd controllable switch unit is used for the positive pole output for turning on and off set of cells.By the way, car emergency startup power supply safety management system of the present invention, can carry out safety management to set of cells, extend lithium battery service life, can ensure the safe handling of car emergency startup power supply, eliminate safe hidden trouble.
Description
Technical field
The present invention relates to emergency starting field of power supplies, more particularly to a kind of car emergency startup power supply safety management system
System.
Background technology
Car emergency startup power supply is that one kind is used for automobile storage battery power shortage or other reasonses（Such as low temperature）Vapour cannot be started
The device of automobile can be started when car.Car emergency startup power supply is generally using dynamic lithium battery as power supply at present.
But the safety management for the big multiplying power charge and discharge of this application lithium battery, and car emergency startup power supply is when using
There is battery clamp both positive and negative polarity folder anti-, short circuit, folder high pressure, the folder integrated treatment of low pressure, automobile without dangerous situations such as storage batterys to still suffer from
Still unsolved technical problem.Therefore often occur during use battery bulge, catch fire, even blast etc. security incident,
Personal safety as well as the property safety is seriously compromised.
On market there is open defect in existing car emergency startup power supply management system, to user and the guarantor of product
Not enough comprehensively, there is very big hidden danger in shield.The safety applications of car emergency startup power supply cannot be met, a set of mature and reliable is needed
Safety management system protected.
Content of the invention
The invention mainly solves the technical problem of providing a kind of car emergency startup power supply safety management system, vapour is lifted
The management and protection of car emergency starting power supply, reduces potential safety hazard.
For solving above-mentioned technical problem, one aspect of the present invention is：A kind of car emergency is provided and starts electricity
Source safety management system, including：
Control administrative unit, the control administrative unit include a controller；
First gate-controlled switch, the second gate-controlled switch and the first current sample；
Storage battery clipping system, is connected with set of cells both positive and negative polarity respectively；
First gate-controlled switch one terminates charging end positive pole, and the other end is connected to the positive pole of set of cells through the second gate-controlled switch,
Composition charging two class protection structure；
The control administrative unit connects the control end of the first gate-controlled switch and the second gate-controlled switch respectively, can for control first
Control switch and the second gate-controlled switch are switched on or off；
First current sample is serially connected between charging end negative pole and battery electrode, for gathering charging current and feeding back to
Control administrative unit；
The control administrative unit is also connected with storage battery clipping system, for controlling the execution action of storage battery clipping system；
The storage battery clipping system also includes that battery clamp state recognition unit and the 3rd controllable switch unit, the battery clamp state are known
Other unit is used for detecting battery clamp current state, and feeds back to control administrative unit and be further processed；
3rd controllable switch unit is used for the positive pole output for turning on and off set of cells；
The set of cells is made up of the lithium battery group of at least 2 strings multisection lithium battery connection in series-parallel, between the set of cells is per a string
Be also equipped with attemperating unit, for temperature too low when give set of cells heating.
In a preferred embodiment of the present invention, the battery clamp state recognition unit includes：
The small current test loop that resistance R503 and diode D502 are composed in series：Resistance R503 is connected to controller EN_Curr_
S ends, diode D502 are connected to the positive pole Clamp+ of battery clamp, when controller EN_Curr_S ends export high level, will have electricity
Stream is exported to battery clamp positive pole Clamp+ along diode D502 directions, for judging whether battery clamp is unloaded；
The high-current test loop that resistance R501, metal-oxide-semiconductor Q501, resistance R502 and diode D501 are composed in series：Resistance R501
Controller EN_Curr_L ends are connected to, for receiving controller drive signal；Metal-oxide-semiconductor Q501 source electrodes connect the positive pole of set of cells
PACK+, metal-oxide-semiconductor Q501 drain electrode connecting resistance R502, is connected to battery clamp positive pole Clamp+ through diode D501, as controller EN_
During the output low level of Curr_L ends, metal-oxide-semiconductor Q501 is opened, and battery anode exports a larger current to battery clamp positive pole, is used for
Identification battery clamp state is both positive and negative polarity short circuit, still clips to without battery automobile；
The backward voltage test loop reversed for recognizing battery clamp both positive and negative polarity that optocoupler U501 and resistance R509 are composed in series, electricity
Resistance R509 is connected to battery clamp positive pole Clamp+, and optocoupler U501 is connected to controller IN_Clamp ends, when the reverse electricity of battery clamp folder
During pressure, optocoupler U501 is turned on, and controller IN_Clamp terminations receive low level signal；
It is positive for recognizing whether battery clamp presss from both sides that diode D504, resistance R507, resistance R508 and audion Q502 are constituted
To voltage tester loop, diode D504, resistance R507 and resistance R508 are sequentially connected in series in battery clamp positive pole Clamp+ and storage battery
Between folder negative pole Clamp-, the base stage of the audion Q502 is connected between resistance R507 and resistance R508, the audion
The colelctor electrode of Q502 is connected with optocoupler U501, and the emitter stage of the audion Q502 is connected with battery clamp negative pole Clamp-,
When battery clamp presss from both sides forward voltage, audion Q502 is turned on, and controller IN_Clamp terminations receive low level signal；
The pressure sampling circuit of resistance R504, resistance Q505, resistance Q506 and diode D503 composition, the resistance Q505 and electricity
Resistance R504 is connected between controller AD_Clamp ends and battery clamp positive pole Clamp+, and resistance Q506 is connected to controller AD_
Between Clamp ends and battery clamp negative pole Clamp-, diode D503 positive poles are connected with battery clamp negative pole Clamp-, diode
D503 negative poles are connected between resistance Q505 and resistance R504, and controller AD_Clamp ends gather concrete voltage value, make electricity
Bottle clip state is determined whether；Under the battery clamp state recognition unit default situations：Q501 disconnects, and EN_Curr_S is exported
Low level, IN_Clamp are pulled to high level；
Step 1, the level state for judging IN_Clamp, if high level, execution step 2；If low level, by AD_Clamp
The numerical value of port judges the state of battery clamp：
If value≤0 of AD_Clamp, judge that battery clamp state is folder backward voltage；
If a0<Value≤the a1 of AD_Clamp, then judge that battery clamp state is the positive low-voltage of folder；
If a1<Value≤the a2 of AD_Clamp, then judge that battery clamp state is the positive suitable voltage of folder；
If a2<The value of AD_Clamp, then judge that battery clamp state is the positive high voltage of folder, and a0, a1 and a2 are preset value；
EN_Curr_S is exported high level by step 2, controller, judges the level state of IN_Clamp, if high level, is executed
Step 3；If low level, then judge battery clamp state as zero load；
Step 3, opening Q501, judge the level state of IN_Clamp, if high level, then judge battery clamp state as both positive and negative polarity
Short circuit；If low level, then battery clamp state is judged as clipping to without battery automobile, when automobile is without storage battery, its internal load is 2 Ω
~20Ω.
In a preferred embodiment of the present invention, the 3rd controllable switch unit includes：
D.C. contactor JK1, D.C. contactor JK1 contact one terminates battery anode PACK+, another termination battery clamp positive pole
Clamp+, for connecting or disconnecting the positive pole of battery anode and battery clamp；
The high-end drive circuit that resistance R601, metal-oxide-semiconductor Q601 are composed in series, resistance R601 connections are controlled by the EN_RL1 of controller
End, metal-oxide-semiconductor Q601 source electrodes connect battery anode PACK+, one end of drain electrode connection JK1 coils；
The low-side driver circuitry that resistance R602, metal-oxide-semiconductor Q602 are composed in series, resistance R602 connect and are controlled by the EN_ of controller
RL2 ends, metal-oxide-semiconductor Q602 source electrodes connect battery electrode PACK-, and the other end of drain electrode connection JK1 coils, when controller drives
When metal-oxide-semiconductor Q601, metal-oxide-semiconductor Q602 are switched on, JK1 is closed, and battery anode is connected with battery clamp positive pole；
Diode D602, anode connect battery clamp positive pole Clamp+, and negative electrode connects the drain electrode of metal-oxide-semiconductor Q601, for maintaining JK1's
Closure state：After battery anode is connected with battery clamp positive pole, Q601 is disconnected, as battery clamp positive pole has voltage, by two
Pole pipe D602 can continue to keep JK1 to be in closure state；
Temperature detect switch (TDS) SW6, open type temperature controller are placed on internal battery pack, and one end is connected to resistance R602 and metal-oxide-semiconductor Q602
Between, the other end is connected with battery electrode PACK-, once set of cells occurs, and temperature is too high, SW6 can be immediately switched to normally closed
State, so as to turn off Q602, JK1 also disconnects therewith, it is to avoid set of cells high temperature discharge, increases safe class；
Diode D601, the diode D601 anodes connection metal-oxide-semiconductor Q602 drain electrodes, diode D601 negative electrodes connect metal-oxide-semiconductor
The drain electrode of Q601, afterflow effect when disconnecting for JK1；
Second current sampling circuit, including sampling resistor RS2, electric capacity C601 and resistance R603, described resistance RS2 one end is connected to
Battery clamp negative pole Clamp-, the other end connect battery electrode PACK-, and described resistance R603 one end is connected to battery clamp negative pole
Clamp-, the other end are connected to controller AD_ISN ends.
In a preferred embodiment of the present invention, the control administrative unit also includes：
Positive temperature coefficient can recover critesistor F1, be connected to charging end P1, and charging end P1 connects external charger, under room temperature,
Positive temperature coefficient can recover critesistor F1 for low resistance state, keep charging normal；When charging current is more than setting value, positive temperature
Coefficient can recover the rising of critesistor F1 temperature, be changed into high-impedance state, disconnect charge circuit, form charging over-current hardware protection；
Charging signals observation circuit, including：Resistance R101, resistance R102 and audion Q101, resistance R101, resistance R102 will fill
Audion Q101 is sent into after electrical voltage partial pressure, when external charger is accessed, IN_CHG ports produce interrupt signal and wake up control
Device processed, controller judge whether to meet charge condition, execute next step action；
Electric voltage observation circuit, including：Resistance R104, resistance R105, electric capacity C102 and diode D101, resistance R104, resistance
R105 will send into electric capacity C102 and diode D101 and controller AD_CHG ports after charger voltage partial pressure, when charger electricity
It is pressed in normal range, controller opens the second gate-controlled switch, i.e. metal-oxide-semiconductor Q104, otherwise Q104 is off；
Second gate-controlled switch drive circuit, including resistance R109, resistance R110, resistance R111 and audion Q105, resistance R109,
Resistance R110 and audion Q105 are connected between the source electrode of metal-oxide-semiconductor Q104 and battery electrode interface, and resistance R111 is connected to
Between the base stage and control end EN_CHG2 of audion Q105, controlled terminal EN_CHG2 is controlled, used as charging first class of protection mechanism；
In the same manner, the first gate-controlled switch drive circuit of resistance R106, resistance R107, resistance R108 and audion Q103 composition, first
Gate-controlled switch is metal-oxide-semiconductor Q102, and controlled terminal EN_CHG1 is controlled, used as charging second class protection mechanism；
Metal-oxide-semiconductor Q102, metal-oxide-semiconductor Q104 form the protection mechanism of plural serial stage, are only just formed when both opening and are charged back
Road；
First current sample includes sampling resistor RS1, resistance R103 and electric capacity C101, resistance R103 and electric capacity C101 series connection
Between battery electrode and charging end negative pole, sampling resistor RS1 two ends connect charging end negative pole and battery electrode respectively, use
Controller, monitoring control devices charging current is fed back in collection charge circuit electric current and by FB_CHG ports, once surpass
Go out normal value, charging excessively stream software protection will be formed by EN_CHG2 port shutdown metal-oxide-semiconductor Q104；
The car emergency startup power supply safety management system also includes that set of cells first class of protection circuit, the set of cells one-level are protected
Protection circuit includes battery equalizing circuit and battery voltage acquisition circuit.
In a preferred embodiment of the present invention, the battery equalizing circuit includes several resistance energy consuming circuitries, for disappearing
The voltage of that higher a string of set of cells of power consumption pressure, each string battery voltage of maintenance are equal, and the resistance energy consuming circuitry connects respectively
Controller and corresponding a string of batteries two ends are connected on, the resistance energy consuming circuitry includes the first energy consumption resistor, energy consuming circuitry respectively
Audion, optocoupler, the second energy consumption resistor and the 3rd energy consumption resistor, first energy consumption resistor and energy consuming circuitry audion are connected on
Corresponding a string of batteries two ends, the optocoupler, the second energy consumption resistor are also connected on corresponding a string of batteries two ends, energy consuming circuitry three
The base stage of pole pipe is connected between optocoupler and the second energy consumption resistor, and the 3rd energy consumption resistor is connected on control end and the control of optocoupler
Between the control end of device processed.
In a preferred embodiment of the present invention, the battery voltage acquisition circuit includes controlling audion, voltage respectively
Collection audion, first voltage collection resistance and RC filter circuits, the voltage acquisition audion, first voltage collection electricity
Resistance and RC filter circuits are connected between the positive pole and earth lead of every a string of set of cells, RC filter circuits and controller
AD ports be connected, for gathering the voltage of corresponding a string of set of cells, the base stage of voltage acquisition audion is also in series with respectively
Second voltage gathers resistance, is connected with control audion after several second voltage collection resistor coupled in parallel, the control audion
Base stage be provided with tertiary voltage collection resistance, tertiary voltage collection resistance is connected with the EN_ADC ports of controller,
Controller determines the on or off of control audion by EN_ADC ports, when management system meets sleep condition, control
Device shut-off control audion, so as to voltage acquisition audion is also turned off, voltage acquisition pathway closure further reduces system work(
Consumption, extends set of cells storage time.
In a preferred embodiment of the present invention, the car emergency startup power supply safety management system also includes set of cells
Safe secondary protection circuit, the set of cells safe secondary protection circuit include：
Battery protection chip；
2nd RC filter circuits, every a string of battery voltages are connected to battery protection chip by the 2nd RC filter circuits respectively
VCX pins, the total positive pole of set of cells are supplied also by the VDD pins that a 2nd RC filter circuit is connected to battery protection chip
Electricity, untapped voltage monitoring pin ground connection；
Resistance R305 and audion Q301, resistance R305 be connected on audion Q301 and battery protection chip output pin CO it
Between, audion Q301 collector outputs EN_CHG1 controls the on or off of the first gate-controlled switch, while outfan EN_
CHG1 is also connected on the input port of controller, for informing the output state of controller EN_CHG1 ports；
When battery protection chip detect arbitrary string battery voltage too high when, outfan CO export high level, audion Q301
Conducting, port EN_CHG1 are pulled low, and audion Q103 disconnects, and metal-oxide-semiconductor Q102 also disconnects therewith, and charge circuit is closed, it is to avoid electricity
Overcharging occurs in pond group, and constitutes battery voltage second class protection, meanwhile, EN_CHG1 ports cut-off signals also send into controller, control
Metal-oxide-semiconductor Q104 is further also switched off by device, it is ensured that metal-oxide-semiconductor Q102, Q104 are all in off state, it is to avoid security incident occur.
In a preferred embodiment of the present invention, the battery voltage acquisition circuit and set of cells safe secondary protection circuit also have
There is breaking protection function；When battery voltage acquisition circuit or set of cells safe secondary protection circuit do not collect battery voltage, will
The first gate-controlled switch, the second gate-controlled switch and JK1 is closed, forbids set of cells charge or discharge.
In a preferred embodiment of the present invention, the car emergency startup power supply safety management system also includes that temperature is adopted
Collector, the temperature collection circuit include resistance R60301 and critesistor RT4, resistance R60301 and critesistor RT4 point
Access controller AD_TSN ports after pressure, critesistor RT4 are placed in internal battery pack, and real-time monitoring battery pack temperature works as temperature
Beyond charging normal or during discharge temp, controller cuts out charging and discharging circuit, forbids that set of cells is filled at too high or too low temperature
Electric discharge.
In a preferred embodiment of the present invention, the attemperating unit includes：
Resistance R307, resistance R307 are banding or thread resistance, uniformly and are close to wind every a string of set of cells；
Switch SW3, switch SW3 are open type temperature detect switch (TDS), are attached to the surface of resistance R307；
Metal-oxide-semiconductor Q302, resistance R307 are connected between the total positive pole of set of cells and metal-oxide-semiconductor Q302, and switch SW3 is connected to metal-oxide-semiconductor
Between Q302 grids and earth lead, metal-oxide-semiconductor source ground；
Resistance R306, is connected between metal-oxide-semiconductor Q302 grids and the EN_HEAT ports of controller；
When set of cells is charged at a lower temperature or discharges, before this, controller is opened by EN_HEAT ports
Metal-oxide-semiconductor Q302, resistance R307 generate heat, and transfer heat to set of cells by way of conduction of heat, and battery pack temperature is raised, and works as control
When device AD_TSN Port detectings processed reach the requirement of charge or discharge to battery temperature, metal-oxide-semiconductor Q302 is closed, stop heating；
Switch SW3 automatically switches to closure state, disconnects MOS by hardware when heating-up temperature is detected more than certain numerical value
Pipe Q302, increased 1 grade of temperature control protection, improves the reliability of attemperating unit.
In a preferred embodiment of the present invention, the car emergency startup power supply safety management system also includes buzzer
Drive circuit, the buzzer drive circuit include resistance R60302, resistance R60303, audion Q401 and buzzer B4, institute
State resistance R60302 to be connected with controller, the resistance R60302, audion Q401, resistance R60303 and buzzer B4 are successively
Series connection；
Car emergency startup power supply safety management system also includes heat abstractor, for battery pack temperature too high when open radiating dress
Put quickening to lower the temperature to set of cells, it is to avoid temperature is put aside.
The invention has the beneficial effects as follows：A kind of car emergency startup power supply safety management system that the present invention is pointed out, can
Safety management is carried out to set of cells, it is to avoid set of cells is overcharged, mistake is put, temperature control；Battery clamp both positive and negative polarity folder can quickly be processed
Instead, short circuit, folder high pressure, folder low pressure, automobile extend lithium battery service life without dangerous situations such as storage batterys, can ensure that automobile should
The safe handling of anxious startup power supply, eliminates safe hidden trouble.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing, wherein：
Fig. 1 is a kind of structural representation of one preferred embodiment of car emergency startup power supply safety management system of the invention；
Fig. 2 is the circuit diagram of Charge Management in a kind of car emergency startup power supply safety management system of the invention；
Fig. 3 is battery equalizing circuit and battery voltage acquisition electricity in a kind of car emergency startup power supply safety management system of the invention
The circuit diagram on road；
Fig. 4 is the circuit diagram of set of cells safe secondary protection circuit in a kind of car emergency startup power supply safety management system of the invention；
Fig. 5 is the circuit diagram of attemperating unit in a kind of car emergency startup power supply safety management system of the invention；
Fig. 6 is the controller circuitry figure in a kind of car emergency startup power supply safety management system of the invention；
Fig. 7 is the circuit diagram of battery clamp state recognition unit in a kind of car emergency startup power supply safety management system of the invention；
Fig. 8 is the circuit diagram of the 3rd controllable switch unit in a kind of car emergency startup power supply safety management system of the invention.
Specific embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment in based on the present invention, this area are common
All other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
Fig. 1 to Fig. 8 is referred to, the embodiment of the present invention includes：
A kind of car emergency startup power supply safety management system, including：
Control administrative unit, the control administrative unit include a controller；
First gate-controlled switch, the second gate-controlled switch and the first current sample；
Storage battery clipping system, is connected with set of cells both positive and negative polarity respectively；
First gate-controlled switch one terminates charging end positive pole, and the other end is connected to the positive pole of set of cells through the second gate-controlled switch,
Composition charging two class protection structure；
The control administrative unit connects the control end of the first gate-controlled switch and the second gate-controlled switch respectively, can for control first
Control switch and the second gate-controlled switch are switched on or off；
First current sample is serially connected between charging end negative pole and battery electrode, for gathering charging current and feeding back to
Control administrative unit；
The control administrative unit is also connected with storage battery clipping system, for controlling the execution action of storage battery clipping system；
The storage battery clipping system also includes that battery clamp state recognition unit and the 3rd controllable switch unit, the battery clamp state are known
Other unit is used for detecting battery clamp current state, and feeds back to control administrative unit and be further processed；
3rd controllable switch unit is used for the positive pole output for turning on and off set of cells；
The set of cells is made up of the lithium battery group of at least 2 strings multisection lithium battery connection in series-parallel, between the set of cells is per a string
Be also equipped with attemperating unit, for temperature too low when give set of cells heating.
The battery clamp state recognition unit includes：
The small current test loop that resistance R503 and diode D502 are composed in series：Resistance R503 is connected to controller EN_Curr_
S ends, diode D502 are connected to the positive pole Clamp+ of battery clamp, when controller EN_Curr_S ends export high level, will have electricity
Stream is exported to battery clamp positive pole Clamp+ along diode D502 directions, for judging whether battery clamp is unloaded；
The high-current test loop that resistance R501, metal-oxide-semiconductor Q501, resistance R502 and diode D501 are composed in series：Resistance R501
Controller EN_Curr_L ends are connected to, for receiving controller drive signal；Metal-oxide-semiconductor Q501 source electrodes connect the positive pole of set of cells
PACK+, metal-oxide-semiconductor Q501 drain electrode connecting resistance R502, is connected to battery clamp positive pole Clamp+ through diode D501, as controller EN_
During the output low level of Curr_L ends, metal-oxide-semiconductor Q501 is opened, and battery anode exports a larger current to battery clamp positive pole, is used for
Identification battery clamp state is both positive and negative polarity short circuit, still clips to without battery automobile；
The backward voltage test loop reversed for recognizing battery clamp both positive and negative polarity that optocoupler U501 and resistance R509 are composed in series, electricity
Resistance R509 is connected to battery clamp positive pole Clamp+, and optocoupler U501 is connected to controller IN_Clamp ends, when the reverse electricity of battery clamp folder
During pressure, optocoupler U501 is turned on, and controller IN_Clamp terminations receive low level signal；
It is positive for recognizing whether battery clamp presss from both sides that diode D504, resistance R507, resistance R508 and audion Q502 are constituted
To voltage tester loop, diode D504, resistance R507 and resistance R508 are sequentially connected in series in battery clamp positive pole Clamp+ and storage battery
Between folder negative pole Clamp-, the base stage of the audion Q502 is connected between resistance R507 and resistance R508, the audion
The colelctor electrode of Q502 is connected with optocoupler U501, and the emitter stage of the audion Q502 is connected with battery clamp negative pole Clamp-,
When battery clamp presss from both sides forward voltage, audion Q502 is turned on, and controller IN_Clamp terminations receive low level signal；
The pressure sampling circuit of resistance R504, resistance Q505, resistance Q506 and diode D503 composition, the resistance Q505 and electricity
Resistance R504 is connected between controller AD_Clamp ends and battery clamp positive pole Clamp+, and resistance Q506 is connected to controller AD_
Between Clamp ends and battery clamp negative pole Clamp-, diode D503 positive poles are connected with battery clamp negative pole Clamp-, diode
D503 negative poles are connected between resistance Q505 and resistance R504, and controller AD_Clamp ends gather concrete voltage value, make electricity
Bottle clip state is determined whether；Under the battery clamp state recognition unit default situations：Q501 disconnects, and EN_Curr_S is exported
Low level, IN_Clamp are pulled to high level；
By taking 12V battery automobiles as an example：
If value≤0 of AD_Clamp, judge that battery clamp state is folder backward voltage；
If the magnitude of voltage for battery clamp positive and negative end being read by AD_Clamp ports is 1V ~ 4.8V, judge battery clamp state
For the positive low-voltage of folder；
If the magnitude of voltage for battery clamp positive and negative end being read by AD_Clamp ports is 4.8V ~ 13.5V, judge storage battery clip-like
State is the positive suitable voltage of folder；
If the magnitude of voltage of battery clamp positive and negative end is read more than 13.5V by AD_Clamp ports, judge battery clamp state
For the positive high voltage of folder；
By taking 24V battery automobiles as an example：
If value≤0 of AD_Clamp, judge that battery clamp state is folder backward voltage；
If the magnitude of voltage for battery clamp positive and negative end being read by AD_Clamp ports is 1V ~ 15.6V, judge battery clamp state
For the positive low-voltage of folder；
If the magnitude of voltage for battery clamp positive and negative end being read by AD_Clamp ports is 15.6V ~ 31V, judge storage battery clip-like
State is the positive suitable voltage of folder；
If reading the magnitude of voltage of battery clamp positive and negative end more than 31V by AD_Clamp ports, judge battery clamp state as
The positive high voltage of folder；
EN_Curr_S is exported high level by step 2, controller, judges the level state of IN_Clamp, if high level, is executed
Step 3；If low level, then judge battery clamp state as zero load；
Step 3, opening Q501, judge the level state of IN_Clamp, if high level, then judge battery clamp state as both positive and negative polarity
Short circuit；If low level, then battery clamp state is judged as clipping to without battery automobile, automobile is without storage battery and automotive interior electrical equipment
During Close All, its internal load is 2 Ω ~ 20 Ω.
3rd controllable switch unit includes：
D.C. contactor JK1, D.C. contactor JK1 contact one terminates battery anode PACK+, another termination battery clamp positive pole
Clamp+, for connecting or disconnecting the positive pole of battery anode and battery clamp；
The high-end drive circuit that resistance R601, metal-oxide-semiconductor Q601 are composed in series, resistance R601 connections are controlled by the EN_RL1 of controller
End, metal-oxide-semiconductor Q601 source electrodes connect battery anode PACK+, one end of drain electrode connection JK1 coils；
The low-side driver circuitry that resistance R602, metal-oxide-semiconductor Q602 are composed in series, resistance R602 connect and are controlled by the EN_ of controller
RL2 ends, metal-oxide-semiconductor Q602 source electrodes connect battery electrode PACK-, and the other end of drain electrode connection JK1 coils, when controller drives
When metal-oxide-semiconductor Q601, metal-oxide-semiconductor Q602 are switched on, JK1 is closed, and battery anode is connected with battery clamp positive pole；
Diode D602, anode connect battery clamp positive pole Clamp+, and negative electrode connects the drain electrode of metal-oxide-semiconductor Q601, for maintaining JK1's
Closure state：After battery anode is connected with battery clamp positive pole, Q601 is disconnected, as battery clamp positive pole has voltage, by two
Pole pipe D602 can continue to keep JK1 to be in closure state；
Temperature detect switch (TDS) SW6, open type temperature controller are placed on internal battery pack, and one end is connected to resistance R602 and metal-oxide-semiconductor Q602
Between, the other end is connected with battery electrode PACK-, once set of cells occurs, and temperature is too high, SW6 can be immediately switched to normally closed
State, so as to turn off Q602, JK1 also disconnects therewith, it is to avoid set of cells high temperature discharge, increases safe class；
Diode D601, the diode D601 anodes connection metal-oxide-semiconductor Q602 drain electrodes, diode D601 negative electrodes connect metal-oxide-semiconductor
The drain electrode of Q601, afterflow effect when disconnecting for JK1；
Second current sampling circuit, including sampling resistor RS2, electric capacity C601 and resistance R603, described resistance RS2 one end is connected to
Battery clamp negative pole Clamp-, the other end connect battery electrode PACK-, and described resistance R603 one end is connected to battery clamp negative pole
Clamp-, the other end are connected to controller AD_ISN ends.
The control administrative unit also includes：
Positive temperature coefficient can recover critesistor F1, be connected to charging end P1, and charging end P1 connects external charger, under room temperature,
Positive temperature coefficient can recover critesistor F1 for low resistance state, keep charging normal；When charging current is more than setting value, positive temperature
Coefficient can recover the rising of critesistor F1 temperature, be changed into high-impedance state, disconnect charge circuit, form charging over-current hardware protection；
Charging signals observation circuit, including：Resistance R101, resistance R102 and audion Q101, resistance R101, resistance R102 will fill
Audion Q101 is sent into after electrical voltage partial pressure, when external charger is accessed, IN_CHG ports produce interrupt signal and wake up control
Device processed, controller judge whether to meet charge condition, execute next step action；
Electric voltage observation circuit, including：Resistance R104, resistance R105, electric capacity C102 and diode D101, resistance R104, resistance
R105 will send into electric capacity C102 and diode D101 and controller AD_CHG ports after charger voltage partial pressure, when charger electricity
It is pressed in normal range, controller opens the second gate-controlled switch, i.e. metal-oxide-semiconductor Q104, otherwise Q104 is off；
Second gate-controlled switch drive circuit, including resistance R109, resistance R110, resistance R111 and audion Q105, resistance R109,
Resistance R110 and audion Q105 are connected between the source electrode of metal-oxide-semiconductor Q104 and battery electrode interface, and resistance R111 is connected to
Between the base stage and control end EN_CHG2 of audion Q105, controlled terminal EN_CHG2 is controlled, used as charging first class of protection mechanism；
In the same manner, the first gate-controlled switch drive circuit of resistance R106, resistance R107, resistance R108 and audion Q103 composition, first
Gate-controlled switch is metal-oxide-semiconductor Q102, and controlled terminal EN_CHG1 is controlled, used as charging second class protection mechanism；
Metal-oxide-semiconductor Q102, metal-oxide-semiconductor Q104 form the protection mechanism of plural serial stage, are only just formed when both opening and are charged back
Road；
First current sample includes sampling resistor RS1, resistance R103 and electric capacity C101, resistance R103 and electric capacity C101 series connection
Between battery electrode and charging end negative pole, sampling resistor RS1 two ends connect charging end negative pole and battery electrode respectively, use
Controller, monitoring control devices charging current is fed back in collection charge circuit electric current and by FB_CHG ports, once surpass
Go out normal value, charging excessively stream software protection will be formed by EN_CHG2 port shutdown metal-oxide-semiconductor Q104；
The car emergency startup power supply safety management system also includes that set of cells first class of protection circuit, the set of cells one-level are protected
Protection circuit includes battery equalizing circuit and battery voltage acquisition circuit.
The battery equalizing circuit includes several resistance energy consuming circuitries, for that higher a string of set of cells of attrition voltage
Voltage, maintains each string battery voltage equal.The resistance energy consuming circuitry is connected to controller with corresponding a string of batteries
Two ends, the resistance energy consuming circuitry include respectively the first energy consumption resistor, energy consuming circuitry audion, optocoupler, the second energy consumption resistor and
3rd energy consumption resistor, first energy consumption resistor and energy consuming circuitry audion are connected on corresponding a string of batteries two ends, the light
Coupling, the second energy consumption resistor are also connected on corresponding a string of batteries two ends, and the base stage of energy consuming circuitry audion is connected to optocoupler and
Between two energy consumption resistors, the 3rd energy consumption resistor is connected between the control end of optocoupler and the control end of controller.
The battery voltage acquisition circuit includes controlling audion, voltage acquisition audion, first voltage collection electricity respectively
Resistance and RC filter circuits, the voltage acquisition audion, first voltage collection resistance and RC filter circuits are connected on
Between the positive pole and earth lead of every a string of set of cells, RC filter circuits are connected with the AD ports of controller, for gathering
The voltage of corresponding a string of set of cells, the base stage of voltage acquisition audion are also in series with second voltage collection resistance, Shuo Ge respectively
It is connected with control audion after two voltage acquisition resistor coupled in parallel, the base stage of the control audion is provided with tertiary voltage collection
Resistance, the tertiary voltage collection resistance are connected with the EN_ADC ports of controller, and controller is determined by EN_ADC ports
The on or off of control audion, when management system meets sleep condition, controller shut-off control audion, so as to voltage
Collection audion is also turned off, and voltage acquisition pathway closure further reduces system power dissipation, extends set of cells storage time.Tool
Body is as shown in figure 3, by taking 3 series lithium battery groups as an example, every a string of set of cells have balanced and battery voltage acquisition function.Control end
DSC_VB1, DSC_VB2, DSC_VB3 connect controller U401, for the voltage of balanced corresponding a string of set of cells；Input AD_
VB1, AD_VB2, AD_VB3 connect the AD ports of controller, for gathering the voltage of corresponding a string of set of cells.Controller also by
EN_ADC port controlling audion Q207 on or off, when management system meets sleep condition, controller turns off Q207, from
And audion Q204, Q205, Q206 are also turned off, voltage acquisition pathway closure further reduces system power dissipation, extends set of cells
Storage time, extends set of cells storage time and service life.Corresponding a string with control end DSC_VB1, input AD_VB1
As a example by set of cells, when management system works, Q206 is turned on, and battery voltage VB1 sends into controller through resistance R218, R219 partial pressure
AD_VB1 ports, such as detect the voltage of the voltage higher than VB2, VB3 of VB1, then control end DSC_VB1 control optocoupler U203 leads
Logical, audion Q203 is also turned on therewith, and set of cells BAT1 is discharged by resistance R203, audion Q203.If now normal
Charge, controller can also turn off metal-oxide-semiconductor Q104 by control end EN_CHG2, so as to cut off charge circuit, it is to avoid set of cells VBT1
Overcharge.When VB1 voltages are down to equal with VB2, VB3 when, controller turn off audion Q203, efficiently solve battery voltage not
Consistent problem, if now meeting charge condition, metal-oxide-semiconductor Q104 recovers to conducting state, and set of cells continues to charge normal.When
When VB1+VB2+VB3 total voltages are more than or equal to full piezoelectric voltage, controller also turns off metal-oxide-semiconductor Q104, constitutes battery voltage one
Level protection.By the way, battery pack balancing and the accurate monitoring problem of cell voltage is not only solved, charging valve is also combined
Reason and the consideration of system power dissipation, it is ensured that the prolonged safety applications of lithium battery group.
The car emergency startup power supply safety management system also includes set of cells safe secondary protection circuit, the set of cells two
Level protection circuit includes：
Battery protection chip U301；
2nd RC filter circuits, every a string of battery voltages are connected to battery protection chip by the 2nd RC filter circuits respectively
VCX pins, X are 1,2,3 ..., as shown in figure 4,3 string battery voltage VB1, VB2, VB3 are respectively connecting to by RC filter networks
VC3, VC2, VC1 pin of U301, VB3 are connected to the VDD pins of U301, untapped voltage monitoring also by R301, C301
Pin VC4, VC5 and VSS pin is grounded；
Resistance R305 and audion Q301, resistance R305 be connected on audion Q301 and battery protection chip output pin CO it
Between, audion Q301 collector outputs EN_CHG1 controls the on or off of the first gate-controlled switch, while outfan EN_
CHG1 is also connected on the input port of controller, for informing the output state of controller EN_CHG1 ports；
When battery protection chip detect arbitrary string battery voltage too high when, outfan CO export high level, audion Q301
Conducting, port EN_CHG1 are pulled low, and audion Q103 disconnects, and metal-oxide-semiconductor Q102 also disconnects therewith, and charge circuit is closed, it is to avoid electricity
Overcharging occurs in pond group, and constitutes battery voltage second class protection, meanwhile, EN_CHG1 ports cut-off signals also send into controller, control
Metal-oxide-semiconductor Q104 is further also switched off by device, it is ensured that metal-oxide-semiconductor Q102, Q104 are all in off state, it is to avoid security incident occur.
The battery voltage acquisition circuit and set of cells safe secondary protection circuit also have breaking protection function；Work as controller
When the VCX pins of AD_VBX ports battery protection chip U301 do not collect battery voltage, will close the first gate-controlled switch, the
Two gate-controlled switches and the 3rd gate-controlled switch, forbid set of cells charge or discharge.
The car emergency startup power supply safety management system also includes temperature collection circuit, the temperature collection circuit bag
Include resistance R60301 and critesistor RT4, access controller AD_TSN ports after resistance R60301 and critesistor RT4 partial pressures,
Critesistor RT4 is placed in internal battery pack, real-time monitoring battery pack temperature, when temperature is beyond charging normal or during discharge temp,
Controller cuts out charging and discharging circuit, forbids set of cells discharge and recharge at too high or too low temperature.
The attemperating unit includes：
Resistance R307, resistance R307 are banding or thread resistance, uniformly and are close to wind every a string of set of cells；
Switch SW3, switch SW3 are open type temperature detect switch (TDS), are attached to the surface of resistance R307；
Metal-oxide-semiconductor Q302, resistance R307 are connected between the total positive pole of set of cells and metal-oxide-semiconductor Q302, and switch SW3 is connected to metal-oxide-semiconductor
Between Q302 grids and earth lead, metal-oxide-semiconductor source ground；
Resistance R306, is connected between metal-oxide-semiconductor Q302 grids and the EN_HEAT ports of controller；
When set of cells is charged at a lower temperature or discharges, before this, controller is opened by EN_HEAT ports
Metal-oxide-semiconductor Q302, resistance R307 generate heat, and transfer heat to set of cells by way of conduction of heat, and battery pack temperature is raised, and works as control
When device AD_TSN Port detectings processed reach the requirement of charge or discharge to battery temperature, metal-oxide-semiconductor Q302 is closed, stop heating；
Switch SW3 automatically switches to closure state, disconnects MOS by hardware when heating-up temperature is detected more than certain numerical value
Pipe Q302, increased 1 grade of temperature control protection, improves the reliability of attemperating unit, it is to avoid work when set of cells low temperature or excess temperature, protect
Card set of cells is used in safe temperature range, it is to avoid the security incident caused by temperature control.
The car emergency startup power supply safety management system also includes buzzer drive circuit, and the buzzer drives electricity
Road includes that resistance R60302, resistance R60303, audion Q401 and buzzer B4, the resistance R60302 are connected with controller
Connect, the resistance R60302, audion Q401, resistance R60303 and buzzer B4 are sequentially connected in series, for producing during normal work
Necessary prompt tone, and when abnormal（As temperature is too high, too low, set of cells is overcharged, mistake is put）Alarm signal is sent, is warned different
Often situation, points out user to process as early as possible, in case situation further deteriorates.
Car emergency startup power supply safety management system also includes heat abstractor, for battery pack temperature too high when open dissipate
Thermal is accelerated to lower the temperature to set of cells, it is to avoid temperature is put aside, and fully ensures that set of cells is used safely, extends lithium battery and uses the longevity
Life.
In sum, a kind of car emergency startup power supply safety management system that the present invention is pointed out, to set of cells charge and discharge
When voltage, electric current, temperature carry out multistage monitoring, constitute the multistage independent series connection protection mechanism to set of cells, significantly reduce electricity
Pond group risk out of control, strengthens the safety management to battery clamp, it is to avoid it is low that battery clamp both positive and negative polarity presss from both sides anti-, short-circuit, folder high pressure, folder
Pressure, automobile improve safe class without damage during storage battery, strengthening system reliability.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (10)
1. a kind of car emergency startup power supply safety management system, for the management of set of cells and battery clamp, it is characterised in that bag
Include：
Control administrative unit, the control administrative unit include a controller；
First gate-controlled switch, the second gate-controlled switch and the first current sample；
Storage battery clipping system, is connected with set of cells both positive and negative polarity respectively；
First gate-controlled switch one terminates charging end positive pole, and the other end is connected to the positive pole of set of cells through the second gate-controlled switch,
Composition charging two class protection structure；
The control administrative unit connects the control end of the first gate-controlled switch and the second gate-controlled switch respectively, can for control first
Control switch and the second gate-controlled switch are switched on or off；
First current sample is serially connected between charging end negative pole and battery electrode, for gathering charging current and feeding back to
Control administrative unit；
The control administrative unit is also connected with storage battery clipping system, for controlling the execution action of storage battery clipping system；
The storage battery clipping system also includes that battery clamp state recognition unit and the 3rd controllable switch unit, the battery clamp state are known
Other unit is used for detecting battery clamp current state, and feeds back to control administrative unit and be further processed；
3rd controllable switch unit is used for the positive pole output for turning on and off set of cells；
The set of cells is made up of the lithium battery group of at least 2 strings multisection lithium battery connection in series-parallel, between the set of cells is per a string
Be also equipped with attemperating unit, for temperature too low when give set of cells heating.
2. car emergency startup power supply safety management system according to claim 1, it is characterised in that the storage battery clip-like
State recognition unit includes：
The small current test loop that resistance R503 and diode D502 are composed in series：Resistance R503 is connected to controller EN_Curr_
S ends, diode D502 are connected to the positive pole Clamp+ of battery clamp, when controller EN_Curr_S ends export high level, will have electricity
Stream is exported to battery clamp positive pole Clamp+ along diode D502 directions, for judging whether battery clamp is unloaded；
The high-current test loop that resistance R501, metal-oxide-semiconductor Q501, resistance R502 and diode D501 are composed in series：Resistance R501
Controller EN_Curr_L ends are connected to, for receiving controller drive signal；Metal-oxide-semiconductor Q501 source electrodes connect the positive pole of set of cells
PACK+, metal-oxide-semiconductor Q501 drain electrode connecting resistance R502, is connected to battery clamp positive pole Clamp+ through diode D501, as controller EN_
During the output low level of Curr_L ends, metal-oxide-semiconductor Q501 is opened, and battery anode exports a larger current to battery clamp positive pole, is used for
Identification battery clamp state is both positive and negative polarity short circuit, still clips to without battery automobile；
The backward voltage test loop reversed for recognizing battery clamp both positive and negative polarity that optocoupler U501 and resistance R509 are composed in series, electricity
Resistance R509 is connected to battery clamp positive pole Clamp+, and optocoupler U501 is connected to controller IN_Clamp ends, when the reverse electricity of battery clamp folder
During pressure, optocoupler U501 is turned on, and controller IN_Clamp terminations receive low level signal；
It is positive for recognizing whether battery clamp presss from both sides that diode D504, resistance R507, resistance R508 and audion Q502 are constituted
To voltage tester loop, diode D504, resistance R507 and resistance R508 are sequentially connected in series in battery clamp positive pole Clamp+ and storage battery
Between folder negative pole Clamp-, the base stage of the audion Q502 is connected between resistance R507 and resistance R508, the audion
The colelctor electrode of Q502 is connected with optocoupler U501, and the emitter stage of the audion Q502 is connected with battery clamp negative pole Clamp-,
When battery clamp presss from both sides forward voltage, audion Q502 is turned on, and controller IN_Clamp terminations receive low level signal；
The pressure sampling circuit of resistance R504, resistance Q505, resistance Q506 and diode D503 composition, the resistance Q505 and electricity
Resistance R504 is connected between controller AD_Clamp ends and battery clamp positive pole Clamp+, and resistance Q506 is connected to controller AD_
Between Clamp ends and battery clamp negative pole Clamp-, diode D503 positive poles are connected with battery clamp negative pole Clamp-, diode
D503 negative poles are connected between resistance Q505 and resistance R504, and controller AD_Clamp ends gather concrete voltage value, make electricity
Bottle clip state is determined whether；Under the battery clamp state recognition unit default situations：Q501 disconnects, and EN_Curr_S is exported
Low level, IN_Clamp are pulled to high level；
Step 1, the level state for judging IN_Clamp, if high level, execution step 2；If low level, by AD_Clamp
The numerical value of port judges the state of battery clamp：
If value≤0 of AD_Clamp, judge that battery clamp state is folder backward voltage；
If a0<Value≤the a1 of AD_Clamp, then judge that battery clamp state is the positive low-voltage of folder；
If a1<Value≤the a2 of AD_Clamp, then judge that battery clamp state is the positive suitable voltage of folder；
If a2<The value of AD_Clamp, then judge that battery clamp state is the positive high voltage of folder, and a0, a1 and a2 are preset value；
EN_Curr_S is exported high level by step 2, controller, judges the level state of IN_Clamp, if high level, is executed
Step 3；If low level, then judge battery clamp state as zero load；
Step 3, opening Q501, judge the level state of IN_Clamp, if high level, then judge battery clamp state as both positive and negative polarity
Short circuit；If low level, then battery clamp state is judged as clipping to without battery automobile, when automobile is without storage battery, its internal load is 2 Ω
~20Ω.
3. car emergency startup power supply safety management system according to claim 1, it is characterised in that the described 3rd is controllable
Switch element includes：
D.C. contactor JK1, D.C. contactor JK1 contact one terminates battery anode PACK+, another termination battery clamp positive pole
Clamp+, for connecting or disconnecting the positive pole of battery anode and battery clamp；
The high-end drive circuit that resistance R601, metal-oxide-semiconductor Q601 are composed in series, resistance R601 connections are controlled by the EN_RL1 of controller
End, metal-oxide-semiconductor Q601 source electrodes connect battery anode PACK+, one end of drain electrode connection JK1 coils；
The low-side driver circuitry that resistance R602, metal-oxide-semiconductor Q602 are composed in series, resistance R602 connect and are controlled by the EN_ of controller
RL2 ends, metal-oxide-semiconductor Q602 source electrodes connect battery electrode PACK-, and the other end of drain electrode connection JK1 coils, when controller drives
When metal-oxide-semiconductor Q601, metal-oxide-semiconductor Q602 are switched on, JK1 is closed, and battery anode is connected with battery clamp positive pole；
Diode D602, anode connect battery clamp positive pole Clamp+, and negative electrode connects the drain electrode of metal-oxide-semiconductor Q601, for maintaining JK1's
Closure state：After battery anode is connected with battery clamp positive pole, Q601 is disconnected, as battery clamp positive pole has voltage, by two
Pole pipe D602 can continue to keep JK1 to be in closure state；
Temperature detect switch (TDS) SW6, open type temperature controller are placed on internal battery pack, and one end is connected to resistance R602 and metal-oxide-semiconductor Q602
Between, the other end is connected with battery electrode PACK-, once set of cells occurs, and temperature is too high, SW6 can be immediately switched to normally closed
State, so as to turn off Q602, JK1 also disconnects therewith, it is to avoid set of cells high temperature discharge, increases safe class；
Diode D601, the diode D601 anodes connection metal-oxide-semiconductor Q602 drain electrodes, diode D601 negative electrodes connect metal-oxide-semiconductor
The drain electrode of Q601, afterflow effect when disconnecting for JK1；
Second current sampling circuit, including sampling resistor RS2, electric capacity C601 and resistance R603, described resistance RS2 one end is connected to
Battery clamp negative pole Clamp-, the other end connect battery electrode PACK-, and described resistance R603 one end is connected to battery clamp negative pole
Clamp-, the other end are connected to controller AD_ISN ends.
4. car emergency startup power supply safety management system according to claim 1, it is characterised in that the control management
Unit also includes：
Positive temperature coefficient can recover critesistor F1, be connected to charging end P1, and charging end P1 connects external charger, under room temperature,
Positive temperature coefficient can recover critesistor F1 for low resistance state, keep charging normal；When charging current is more than setting value, positive temperature
Coefficient can recover the rising of critesistor F1 temperature, be changed into high-impedance state, disconnect charge circuit, form charging over-current hardware protection；
Charging signals observation circuit, including：Resistance R101, resistance R102 and audion Q101, resistance R101, resistance R102 will fill
Audion Q101 is sent into after electrical voltage partial pressure, when external charger is accessed, IN_CHG ports produce interrupt signal and wake up control
Device processed, controller judge whether to meet charge condition, execute next step action；
Electric voltage observation circuit, including：Resistance R104, resistance R105, electric capacity C102 and diode D101, resistance R104, resistance
R105 will send into electric capacity C102 and diode D101 and controller AD_CHG ports after charger voltage partial pressure, when charger electricity
It is pressed in normal range, controller opens the second gate-controlled switch, i.e. metal-oxide-semiconductor Q104, otherwise Q104 is off；
Second gate-controlled switch drive circuit, including resistance R109, resistance R110, resistance R111 and audion Q105, resistance R109,
Resistance R110 and audion Q105 are connected between the source electrode of metal-oxide-semiconductor Q104 and battery electrode interface, and resistance R111 is connected to
Between the base stage and control end EN_CHG2 of audion Q105, controlled terminal EN_CHG2 is controlled, used as charging first class of protection mechanism；
In the same manner, the first gate-controlled switch drive circuit of resistance R106, resistance R107, resistance R108 and audion Q103 composition, first
Gate-controlled switch is metal-oxide-semiconductor Q102, and controlled terminal EN_CHG1 is controlled, used as charging second class protection mechanism；
Metal-oxide-semiconductor Q102, metal-oxide-semiconductor Q104 form the protection mechanism of plural serial stage, are only just formed when both opening and are charged back
Road；
First current sample includes sampling resistor RS1, resistance R103 and electric capacity C101, resistance R103 and electric capacity C101 series connection
Between battery electrode and charging end negative pole, sampling resistor RS1 two ends connect charging end negative pole and battery electrode respectively, use
Controller, monitoring control devices charging current is fed back in collection charge circuit electric current and by FB_CHG ports, once surpass
Go out normal value, charging excessively stream software protection will be formed by EN_CHG2 port shutdown metal-oxide-semiconductor Q104；
The car emergency startup power supply safety management system also includes that set of cells first class of protection circuit, the set of cells one-level are protected
Protection circuit includes battery equalizing circuit and battery voltage acquisition circuit.
5. car emergency startup power supply safety management system according to claim 4, it is characterised in that described battery balanced
Circuit includes that several resistance energy consuming circuitries, the resistance energy consuming circuitry are connected to controller with corresponding a string of batteries two
End, the resistance energy consuming circuitry include the first energy consumption resistor, energy consuming circuitry audion, optocoupler, the second energy consumption resistor and the respectively
Three energy consumption resistors, first energy consumption resistor and energy consuming circuitry audion are connected on corresponding a string of batteries two ends, the optocoupler,
Second energy consumption resistor is also connected on corresponding a string of batteries two ends, and the base stage of energy consuming circuitry audion is connected to optocoupler and the second consumption
Between energy resistance, the 3rd energy consumption resistor is connected between the control end of optocoupler and the control end of controller.
6. car emergency startup power supply safety management system according to claim 4, it is characterised in that the cell voltage
Acquisition Circuit includes controlling audion, voltage acquisition audion, first voltage collection resistance and RC filter circuits, institute respectively
State voltage acquisition audion, first voltage collection resistance and RC filter circuits to be connected on the positive pole of every a string of set of cells and connect
Between ground wire, RC filter circuits are connected with the AD ports of controller, for gathering the voltage of corresponding a string of set of cells, electricity
The base stage of pressure collection audion is also in series with second voltage collection resistance respectively, with control after several second voltage collection resistor coupled in parallel
Audion processed is connected, and the base stage of the control audion is provided with tertiary voltage collection resistance, the tertiary voltage collection electricity
Resistance is connected with the EN_ADC ports of controller, and controller determines the on or off of control audion by EN_ADC ports,
When management system meets sleep condition, controller shut-off control audion, so as to voltage acquisition audion is also turned off, voltage
Acquisition channel is closed, and further reduces system power dissipation, extends set of cells storage time.
7. car emergency startup power supply safety management system according to claim 4, it is characterised in that the car emergency
Startup power supply safety management system also includes set of cells safe secondary protection circuit；
The set of cells safe secondary protection circuit includes：
Battery protection chip；
2nd RC filter circuits, every a string of battery voltages are connected to battery protection chip by the 2nd RC filter circuits respectively
VCX pins, the total positive pole of set of cells are supplied also by the VDD pins that a 2nd RC filter circuit is connected to battery protection chip
Electricity, untapped voltage monitoring pin ground connection；
Resistance R305 and audion Q301, resistance R305 be connected on audion Q301 and battery protection chip output pin CO it
Between, audion Q301 collector outputs EN_CHG1 controls the on or off of the first gate-controlled switch, while outfan EN_
CHG1 is also connected on the input port of controller, for informing the output state of controller EN_CHG1 ports；
When battery protection chip detect arbitrary string battery voltage too high when, outfan CO export high level, audion Q301
Conducting, port EN_CHG1 are pulled low, and audion Q103 disconnects, and metal-oxide-semiconductor Q102 also disconnects therewith, and charge circuit is closed, it is to avoid electricity
Overcharging occurs in pond group, and constitutes battery voltage second class protection, meanwhile, EN_CHG1 ports cut-off signals also send into controller, control
Metal-oxide-semiconductor Q104 is further also switched off by device, it is ensured that metal-oxide-semiconductor Q102, Q104 are all in off state, it is to avoid security incident occur.
8. car emergency startup power supply safety management system according to claim 1, it is characterised in that the car emergency
Startup power supply safety management system also includes temperature collection circuit, and the temperature collection circuit includes resistance R60301 and temperature-sensitive electricity
Resistance RT4, access controller AD_TSN ports after resistance R60301 and critesistor RT4 partial pressures, critesistor RT4 are placed in set of cells
Inside, real-time monitoring battery pack temperature, when temperature is beyond charging normal or during discharge temp, controller cuts out charging and discharging circuit,
Forbid set of cells discharge and recharge at too high or too low temperature.
9. car emergency startup power supply safety management system according to claim 1, it is characterised in that the attemperating unit
Including：
Resistance R307, resistance R307 are banding or thread resistance, uniformly and are close to wind every a string of set of cells；
Switch SW3, switch SW3 are open type temperature detect switch (TDS), are attached to the surface of resistance R307；
Metal-oxide-semiconductor Q302, resistance R307 are connected between the total positive pole of set of cells and metal-oxide-semiconductor Q302, and switch SW3 is connected to metal-oxide-semiconductor
Between Q302 grids and earth lead, metal-oxide-semiconductor source ground；
Resistance R306, is connected between metal-oxide-semiconductor Q302 grids and the EN_HEAT ports of controller；
When set of cells is charged at a lower temperature or discharges, before this, controller is opened by EN_HEAT ports
Metal-oxide-semiconductor Q302, resistance R307 generate heat, and transfer heat to set of cells by way of conduction of heat, and battery pack temperature is raised, and works as control
When device AD_TSN Port detectings processed reach the requirement of charge or discharge to battery temperature, metal-oxide-semiconductor Q302 is closed, stop heating；
Switch SW3 automatically switches to closure state, disconnects MOS by hardware when heating-up temperature is detected more than certain numerical value
Pipe Q302, improves the reliability of attemperating unit.
10. car emergency startup power supply safety management system according to claim 1, it is characterised in that the automobile should
Anxious startup power supply safety management system also includes buzzer drive circuit, the buzzer drive circuit include resistance R60302,
Resistance R60303, audion Q401 and buzzer B4, the resistance R60302 are connected with controller, the resistance R60302,
Audion Q401, resistance R60303 and buzzer B4 are sequentially connected in series；
Car emergency startup power supply safety management system also includes heat abstractor, for battery pack temperature too high when open radiating dress
Put quickening to lower the temperature to set of cells, it is to avoid temperature is put aside.
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| CN107342612A (en) * | 2017-08-15 | 2017-11-10 | 宁夏黑金昊源绿能科技有限公司 | Voltage switching output device and method |
| CN108471152A (en) * | 2018-04-13 | 2018-08-31 | 苏州海加网络科技股份有限公司 | A kind of portable multifunctional electricity library |
| CN108471153A (en) * | 2018-04-13 | 2018-08-31 | 上海海加网络科技有限公司 | A kind of portable multifunctional electricity library |
| CN109586354A (en) * | 2018-10-23 | 2019-04-05 | 大唐恩智浦半导体有限公司 | Battery management chip, chip controls method and system |
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| WO2020177467A1 (en) * | 2019-03-07 | 2020-09-10 | 广东电将军能源有限公司 | Smart battery wire clip, integrated starting power supply device, and ignition method |
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| CN107342612A (en) * | 2017-08-15 | 2017-11-10 | 宁夏黑金昊源绿能科技有限公司 | Voltage switching output device and method |
| CN108471152A (en) * | 2018-04-13 | 2018-08-31 | 苏州海加网络科技股份有限公司 | A kind of portable multifunctional electricity library |
| CN108471153A (en) * | 2018-04-13 | 2018-08-31 | 上海海加网络科技有限公司 | A kind of portable multifunctional electricity library |
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| WO2020177467A1 (en) * | 2019-03-07 | 2020-09-10 | 广东电将军能源有限公司 | Smart battery wire clip, integrated starting power supply device, and ignition method |
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