CN108321904A - A kind of automobile batteries protection system - Google Patents
A kind of automobile batteries protection system Download PDFInfo
- Publication number
- CN108321904A CN108321904A CN201810212090.9A CN201810212090A CN108321904A CN 108321904 A CN108321904 A CN 108321904A CN 201810212090 A CN201810212090 A CN 201810212090A CN 108321904 A CN108321904 A CN 108321904A
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- Prior art keywords
- module
- battery pack
- control module
- power battery
- switch module
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- 238000001514 detection method Methods 0.000 claims abstract description 32
- 230000005669 field effect Effects 0.000 claims description 37
- 230000005611 electricity Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
Classifications
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- H02J7/0026—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- 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
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect 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
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting 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
- H02J7/0036—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
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- 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
Abstract
The invention discloses a kind of automobile batteries to protect system; include for providing the power battery pack of power supply, the control module for being managed as a whole to power supply and the switch module for carrying out selection to different batteries in power battery pack for automobile; the time statistical module for comparing power supply turn-on time is provided among control module, power battery pack, switch module and time statistical module are sequentially connected；Time statistical module is according to the turn-on time out-put supply failure alarm signal of switch module.Whether the automobile batteries protects system, detection switch module can break down in time, to alarm in time failure, avoid damage battery pack or battery pack.
Description
Technical field
The present invention relates to automobile batteries protection technique field, especially a kind of automobile batteries protects system.
Background technology
The power battery pack of automobile is formed by multiple battery combinations, wherein each battery pack includes a section or more piece
Battery.Each group of battery can individually be controlled in use, i.e., by a switch module carry out switch control come
Control one group of battery discharge, it is therefore desirable to all be monitored to each group of battery.Current means are by gathering line, and MCU is straight
The voltage of each group of battery of detection is connect, but since the electric discharge of each battery pack is not continued until that electricity depletes, but
Successively conducting for a period of time, switch control is carried out generally by the switch module to every group of battery.But if switch module occurs
Failure causes a certain battery pack constantly on, that is, the battery pack is discharged always, but since discharge process is slower, electricity
Bucklingization is slow, cannot find failure in time by way of monitoring cell voltage, be to battery pack not only in this way it is harmful, it is right
The regular picture management of battery pack can also have an impact.
Invention content
To solve the above problems, the purpose of the present invention is to provide a kind of automobile batteries to protect system, can detect in time
Whether switch module breaks down, and to alarm in time failure, avoids damage battery pack or battery pack.
Technical solution is used by the present invention solves the problems, such as it：
A kind of automobile batteries protects system, include for provided for automobile the power battery pack of power supply, for power supply into
The control module of row overall management and switch module for carrying out selection to different battery in power battery pack, control module it
In be provided with time statistical module for comparing power supply turn-on time, power battery pack, switch module and time statistical module
It is sequentially connected；Time statistical module is according to the turn-on time out-put supply failure alarm signal of switch module.
Further, further including can for will be converted to control module by the voltage value of the battery output in power battery pack
The potential-divider network of the voltage value of identification, potential-divider network are set between switch module and control module.
Further, further include for the choosing for being transferred to control module by the voltage that different batteries export in power battery pack
Network is selected, selects network settings between potential-divider network and control module.
Further, it is additionally provided among control module for detecting by the voltage value of different battery outputs in power battery pack
Voltage detection module, voltage detection module connect with the battery in power battery pack.
Further, further include for rise overcurrent protection protection module, protection module be set to power battery pack with
Between switch module.
Further, the quantity of switch module is consistent with the quantity of battery in power battery pack, and switch module includes switch
The grid of field-effect tube, switched field effect pipe is connected to the control signal output of control module, the source electrode of switched field effect pipe
It is connected respectively with the voltage detection module in the battery and control module in power battery pack, the drain electrode of switched field effect pipe connects
The time statistical module being connected in control module.There are two types of states for each switch module：Turn-on and turn-off, both states are right
Two output voltages U0 and U1 of selection network should be arrived, when each switch module is connected or turns off, corresponding potential-divider network is adopted
The voltage collected is essentially identical.When a switch module is connected, net output voltage U0 is selected, and turns off the switch module
When, select the switch module on the roads net output voltage U1, Ze Gai normal, corresponding switched field effect pipe is normal；When conducting one
When switch module, when selecting net output voltage U0, and turning off the switch module, net output voltage U0 is selected, the roads Ze Gai
Switch module failure, corresponding switched field effect tube short circuit；When a switch module is connected, net output voltage U1 is selected,
And when turning off the switch module, select net output voltage U1, the switch module failure on the roads Ze Gai, corresponding switched field effect pipe
Open circuit.
Further, switch module further includes anti-reverse two pole for preventing that back end device is caused to be damaged because of battery reversal connection
Pipe, the anode and cathode of anti-reverse diode are connected to the statistics of the time in the drain electrode and control module of switched field effect pipe
Module.
Further, the quantity of potential-divider network is consistent with the quantity of battery in power battery pack, and potential-divider network includes first
Divider resistance and the second divider resistance, the first divider resistance and the second divider resistance be connected in series in switch module and reference ground it
Between, the junction of the first divider resistance and the second divider resistance is connected to the time statistical module in control module.
Further, select the quantity of network consistent with the quantity of battery in power battery pack, it includes switch to select network
Diode, the anode and cathode of switching diode are connected to the statistics of the time in the output end and control module of potential-divider network
Module.
Further, protection module includes fuse and filter inductance, and fuse and filter inductance are connected in series in power electric
Pond packet in battery and control module in voltage detection module between, the junction of filter inductance and voltage detection module with open
Module is closed to be connected.
The beneficial effects of the invention are as follows：A kind of automobile batteries protection system, switch module can be in power battery pack
Different batteries are selected, and when control module control switch module gates one of battery, are transmitted by the battery
Among the time statistical module that voltage signal can be input to by corresponding switch module in control module, mould is counted when the time
When block detects voltage signal, time statistical module can carry out time statistics, which is leading for switch module
The logical time；When reaching setting time value between when closed, control module will disconnect current switch module, if but the switch module
When breaking down and leading to not disconnect, battery can be continued by the switch module to time statistical module transmission voltage letter
Number, and time statistical module then can persistently count the turn-on time, when the time statistical value of time statistical module is more than
When setting time value, control module can judge that the switch module breaks down, therefore control module can out-put supply failure report
Alert signal reminds the user that maintenance in time or replaces power battery pack.Therefore, automobile batteries of the invention protects system, energy
Whether enough timely detection switch modules break down, and so as to alarm in time failure, avoid damage battery pack or electricity
Chi Bao.
Description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the automobile batteries protection system of the present invention；
Fig. 2 is the circuit diagram of the automobile batteries protection system of the present invention；
Fig. 3 is the work flow diagram of the automobile batteries protection system of the present invention.
Specific implementation mode
- Fig. 2 referring to Fig.1, a kind of automobile batteries of the invention protect system, have numerous embodiments, can examine in time
Whether slowdown monitoring switch module 3 breaks down, and so as to alarm in time failure, avoids damage battery pack or battery pack.
Embodiment one：
- Fig. 2 referring to Fig.1, automobile batteries of the invention protect system, include the power electric for providing power supply for automobile
It wraps the 1, control module 2 for being managed as a whole to power supply and for selecting different batteries in power battery pack 1 in pond
Switch module 3, the time statistical module 21 for comparing power supply turn-on time, power battery are provided among control module 2
Packet 1, switch module 3 and time statistical module 21 are sequentially connected；Time statistical module 21 is defeated according to the turn-on time of switch module 3
Go out power failure alarm signal.Wherein, it is additionally provided among control module 2 for detecting by different batteries in power battery pack 1
The voltage detection module 22 of the voltage value of output, voltage detection module 22 are connect with the battery in power battery pack 1.Switch module
3 quantity is consistent with the quantity of battery in power battery pack 1, and switch module 3 includes switched field effect pipe 31, switched field effect
The grid of pipe 31 is connected to the control signal output of control module 2, the source electrode of switched field effect pipe 31 respectively with power battery
Battery in packet 1 is connected with the voltage detection module 22 in control module 2, and the drain electrode of switched field effect pipe 31 is connected to control
Time statistical module 21 in module 2.
Specifically, switch module 3 can select the different batteries in power battery pack 1, when control module 2 controls
When switch module 3 gates one of battery, the voltage signal transmitted by the battery can be by corresponding switch module 3
It is input among the time statistical module 21 in control module 2, when time statistical module 21 detects voltage signal, time system
Meter module 21 can carry out time statistics, which is the turn-on time of switch module 3；Reach between when closed and sets
When value of fixing time, control module 2 will disconnect current switch module 3, if but the switch module 3 break down and lead to not break
When opening, battery can be continued by switch module 3 to the transmission voltage signal of time statistical module 21, and time statistical module 21
Then persistently the turn-on time can be counted, when the time statistical value of time statistical module 21 is more than setting time value, control
Molding block 2 can judge that the switch module 3 breaks down, therefore the meeting out-put supply failure alarm signal of control module 2, to carry
The user that wakes up overhauls or replaces in time power battery pack 1.Therefore, automobile batteries of the invention protects system, can detect out in time
It closes whether module 3 breaks down, so as to alarm in time failure, avoids damage battery pack or battery pack.
Embodiment two：
- Fig. 2 referring to Fig.1, on the basis of embodiment one, switch module 3 further includes for preventing from leading because of battery reversal connection
The anti-reverse diode 32 of back end device damage, the anode and cathode of anti-reverse diode 32 is caused to be connected to switched field effect
Time statistical module 21 in the drain electrode and control module 2 of pipe 31.Specifically, anti-reverse diode 32 can be effectively prevent because of electricity
Pond reversal connection and the problem of cause back end device to be damaged.It, can due to the restriction effect to conducting direction of anti-reverse diode 32
Prevent the positive and negative anodes for occurring battery when battery reversal connection by the parasitic diode of switched field effect pipe 31 the case where mutual conduction,
Therefore, anti-reverse diode 32 can not only avoid the problem that battery damages, and circuit system can be avoided to damage
Bad or even serious problems on fire.
Embodiment three：
- Fig. 2 referring to Fig.1, on the basis of embodiment two, automobile batteries of the invention protection system further includes for inciting somebody to action
The potential-divider network 4 for the voltage value that control module 2 can identify is converted to by the voltage value of the battery output in power battery pack 1,
Potential-divider network 4 is set between switch module 3 and control module 2.Wherein, electric in the quantity Yu power battery pack 1 of potential-divider network 4
The quantity in pond is consistent, and potential-divider network 4 includes the first divider resistance 41 and the second divider resistance 42, the first divider resistance 41 and the
Two divider resistances 42 are connected in series between switch module 3 and reference ground, the first divider resistance 41 and the second divider resistance 42
Junction is connected to the time statistical module 21 in control module 2.Specifically, electricity is divided by the first divider resistance 41 and second
The partial pressure effect of resistance 42, can be divided to the drain voltage of switched field effect pipe 31 the voltage model that control module 2 can bear
Within enclosing so that time statistical module 21 among control module 2 can to the drain voltage of switched field effect pipe 31 into
Whether the turn-on time of row detection and statistic switch field-effect tube 31, break down so as to accurate judgement switch module 3.This
Outside, control module 2 can also carry out switched field effect pipe 31 with the voltage signal received by the control signal of its output
Specific fault detect.For example, the control signal output when control module 2 exports high electricity to the grid of switched field effect pipe 31
Flat useful signal, and when time statistical module 21 receives high level signal, and when the control signal output of control module 2
The non-effective signal of low level is exported, and when time statistical module 21 receives low level signal, it can judge current switch field
Effect pipe 31 works normally.If the control signal output of control module 2 exports high level useful signal, and the time counts mould
When block 21 receives low level signal, then it can determine whether that current switch field-effect tube 31 is open fault；If the control of control module 2
Signal output end processed exports the non-effective signal of low level, and when time statistical module 21 receives high level signal, then it can determine whether
Current switch field-effect tube 31 is short trouble.
Example IV：
- Fig. 2 referring to Fig.1, on the basis of embodiment three, automobile batteries of the invention protection system further includes being used for handle
It is transferred to the selection network 5 of control module 2 by the voltage of different battery output in power battery pack 1, network 5 is selected to be set to point
Between pressure network network 4 and control module 2.Wherein, the quantity of selection network 5 is consistent with the quantity of battery in power battery pack 1, choosing
Select network 5 include switching diode 51, switching diode 51 anode and cathode be connected to potential-divider network 4 output end and
Time statistical module 21 in control module 2.There are two types of states for each switch module 3：Turn-on and turn-off, both states are right
Two output voltages U0 and U1 of selection network 5 should be arrived, when each switch module 3 is connected or turns off, corresponding potential-divider network 4
Collected voltage is essentially identical.When a switch module 3 is connected, 5 output voltage U0 of network is selected, and turns off the switching molding
When block 3, select the switch module 3 on 5 roads output voltage U1, Ze Gai of network normal, corresponding switched field effect pipe 31 is normal；When leading
When leading to a switch module 3, when selecting 5 output voltage U0 of network, and turning off the switch module 3,5 output voltage of network is selected
3 failure of switch module on the road U0, Ze Gai, 31 short circuit of corresponding switched field effect pipe；When a switch module 3 is connected, selection
5 output voltage U1 of network, and when turning off the switch module 3, selects 5 output voltage U1 of network, the switch module 3 on the roads Ze Gai therefore
Barrier, corresponding switched field effect pipe 31 are opened a way.Specifically, the switching diode 51 in network 5 is selected, can not only be limited by dividing
The voltage signal directional transmissions that pressure network network 4 exports can also believe the voltage exported by switch module 3 to control module 2
The maximum voltage signal of voltage value chooses in number.Since switching diode 51 is of approximately the pressure drop of 0.7V, because
This, only voltage signal of the voltage value more than 0.7V can be detected effectively, moreover, because control module 2 is one by one right
Battery in power battery pack 1 is detected processing, therefore only there are one switched field effect pipes 31 to be switched on every time, so, it opens
Close diode 51 accurately can be input to control mould the voltage signal transmitted by switched field effect pipe 31 switched on
Among block 2, and the interference ripple signal generated by other switched field effect pipes 31, since its voltage value is less than 0.7V, all
It will not be selected by selection network 5, so as to play good anti-tampering effect.
Embodiment five：
- Fig. 2 referring to Fig.1, on the basis of example IV, it further includes being used for that automobile batteries of the invention, which protects system,
The protection module 6 of overcurrent protection, protection module 6 are set between power battery pack 1 and switch module 3.Wherein, mould is protected
Block 6 includes fuse 61 and filter inductance 62, and fuse 61 and filter inductance 62 are connected in series in the battery in power battery pack 1
Between the voltage detection module 22 in control module 2, junction and switching molding of the filter inductance 62 with voltage detection module 22
Block 3 is connected.Specifically, when short trouble occurs in the transmission line between the battery in power battery pack 1 and control module 2
When, fuse 61 can be melted away, so that the transmission line between battery and control module 2 disconnects, at this point, control module 2
In voltage detection module 22 will can't detect the voltage exported by battery, so, protection module 6 can not only play overcurrent guarantor
The effect of shield, and can coordinate with control module 2 and play the role of system short-circuit detection.
The automobile batteries of the present invention protects system, due to control module 2, switch module 3, potential-divider network 4, selection net
Network 5 and protection module 6 etc. are respectively provided with the component of different function, are acted on by the mutual cooperation between all parts, therefore also
Can have short-circuit detecting, anti-reverse detection and switched field effect pipe fault detect this three detection functions, and this three inspections
Do not have sequential restriction between brake, if three detection functions detect normally, illustrates system worked well, if wherein
Any one detection is broken down, among fault-signal can be all reported to entire car controller by control module 2, and entire car controller
Relevant instruction or action are then sent out according to the fault-signal.
It is the work flow diagram of the automobile batteries protection system of the present invention with reference to Fig. 3, Fig. 3, automobile batteries of the invention is protected
Protecting system includes the following steps when implementing three detection functions：
S100, system initialization；
S200, it is carried out at the same time short-circuit detecting, anti-reverse detection and switched field effect pipe fault detect, when any detection operates
When detection is out of order, control module 2 is reported to fault-signal among entire car controller；
S300, entire car controller send out failure alarm signal.
Wherein, when carrying out short-circuit detecting in above-mentioned steps S200, include the following steps：
S210, judge whether voltage detection module 22 detects the voltage transmitted by the battery in power battery pack 1
Signal, if so, control module 2 carries out battery management to power battery pack 1, otherwise, there is short trouble in judgement；
Fault-signal is reported to entire car controller by S211, control module 2.
Wherein, when carrying out anti-reverse detection in above-mentioned steps S200, include the following steps：
S220, judge whether the time statistical module 21 in control module 2 detects voltage signal, if so, control module 2
Battery management is carried out to power battery pack 1, otherwise, battery reversal connection failure occurs in judgement；
Fault-signal is reported to entire car controller by S221, control module 2.
Wherein, when carrying out switched field effect pipe fault detect in above-mentioned steps S200, include the following steps：
S230, judge the electricity that the level value of the control signal exported by control module 2 and time statistical module 21 receive
Press the level value of signal whether identical, if so, otherwise control module 2 carries out battery management to power battery pack 1 judges occur
Switched field effect pipe failure；
Fault-signal is reported to entire car controller by S231, control module 2.
In conclusion the automobile batteries of the present invention protects system, detection switch module 3 event whether can not only occur in time
Barrier, and can also specifically to the fault type of short circuit phenomenon, reversal connection phenomenon and switched field effect pipe 31 in system into
Row accurately detection, so as to ensure the normal operating conditions of the power battery pack 1 for providing power supply for automobile.
It is to be illustrated to the preferable implementation of the present invention, but the invention is not limited in above-mentioned embodiment party above
Formula, those skilled in the art can also make various equivalent variations or be replaced under the premise of without prejudice to spirit of that invention
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of automobile batteries protects system, it is characterised in that：Include for provided for automobile the power battery pack (1) of power supply,
Control module (2) for being managed as a whole to power supply and for selecting different batteries in the power battery pack (1)
The switch module (3) selected is provided with the time statistical module for comparing power supply turn-on time among the control module (2)
(21), the power battery pack (1), switch module (3) and time statistical module (21) are sequentially connected；The time statistical module
(21) according to the turn-on time out-put supply failure alarm signal of the switch module (3).
2. a kind of automobile batteries according to claim 1 protects system, it is characterised in that：Further include for will be moved by described
The voltage value of battery output in power battery pack (1) is converted to the partial pressure net for the voltage value that the control module (2) can identify
Network (4), the potential-divider network (4) are set between the switch module (3) and control module (2).
3. a kind of automobile batteries according to claim 2 protects system, it is characterised in that：Further include for by described dynamic
The voltage of different battery outputs is transferred to the selection network (5) of the control module (2), the selection net in power battery pack (1)
Network (5) is set between the potential-divider network (4) and control module (2).
4. a kind of automobile batteries according to claim 3 protects system, it is characterised in that：Among the control module (2)
It is additionally provided with for detecting by the voltage detection module (22) of the voltage value of different battery outputs in the power battery pack (1),
The voltage detection module (22) connect with the battery in the power battery pack (1).
5. a kind of automobile batteries according to claim 4 protects system, it is characterised in that：Further include being used for overcurrent protection
The protection module (6) of effect, the protection module (6) are set between the power battery pack (1) and switch module (3).
6. a kind of automobile batteries according to claim 4 protects system, it is characterised in that：The number of the switch module (3)
Amount is consistent with the quantity of battery in the power battery pack (1), and the switch module (3) includes switched field effect pipe (31),
The grid of the switched field effect pipe (31) is connected to the control signal output of the control module (2), the switch yard effect
Should manage the source electrode of (31) respectively with the voltage detecting mould in the battery and the control module (2) in the power battery pack (1)
Block (22) is connected, and the drain electrode of the switched field effect pipe (31) is connected to the time statistical module in the control module (2)
(21)。
7. a kind of automobile batteries according to claim 6 protects system, it is characterised in that：The switch module (3) is also wrapped
Include the anti-reverse diode (32) for preventing that back end device is caused to be damaged because of battery reversal connection, the anti-reverse diode (32)
Anode and cathode be connected to the time in the drain electrode and the control module (2) of the switched field effect pipe (31) statistics
Module (21).
8. a kind of automobile batteries according to claim 2 protects system, it is characterised in that：The number of the potential-divider network (4)
Amount is consistent with the quantity of battery in the power battery pack (1), and potential-divider network (4) includes the first divider resistance (41) and second
Divider resistance (42), first divider resistance (41) and the second divider resistance (42) are connected in series in the switch module (3)
Between reference ground, the junction of first divider resistance (41) and the second divider resistance (42) is connected to the control module
(2) the time statistical module (21) in.
9. a kind of automobile batteries according to claim 3 protects system, it is characterised in that：The number of the selection network (5)
Amount is consistent with the quantity of battery in the power battery pack (1), and the selection network (5) includes switching diode (51), institute
The anode and cathode for stating switching diode (51) are connected to the output end of the potential-divider network (4) and the control module
(2) the time statistical module (21) in.
10. a kind of automobile batteries according to claim 5 protects system, it is characterised in that：The protection module (6) includes
Fuse (61) and filter inductance (62), the fuse (61) and filter inductance (62) are connected in series in the power battery pack
(1) between the voltage detection module (22) in the battery in and the control module (2), the filter inductance (62) and the electricity
The junction of pressure detection module (22) is connected with the switch module (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212090.9A CN108321904A (en) | 2018-03-14 | 2018-03-14 | A kind of automobile batteries protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212090.9A CN108321904A (en) | 2018-03-14 | 2018-03-14 | A kind of automobile batteries protection system |
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| Publication Number | Publication Date |
|---|---|
| CN108321904A true CN108321904A (en) | 2018-07-24 |
Family
ID=62902559
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810212090.9A Pending CN108321904A (en) | 2018-03-14 | 2018-03-14 | A kind of automobile batteries protection system |
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| CN (1) | CN108321904A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN102623761A (en) * | 2011-01-28 | 2012-08-01 | 比亚迪股份有限公司 | Battery management system and management method thereof |
| KR20150025428A (en) * | 2013-08-29 | 2015-03-10 | 주식회사 엘지화학 | Apparatus and Method for diagnosis of cell balancing switch |
| CN208158151U (en) * | 2018-03-14 | 2018-11-27 | 江门市地尔汉宇电器股份有限公司 | A kind of automobile batteries protection system |
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| CN102325670A (en) * | 2009-03-26 | 2012-01-18 | 株式会社日立制作所 | Battery system for vehicle |
| CN202025073U (en) * | 2011-01-25 | 2011-11-02 | 深圳市奥华电力设备有限公司 | Battery patrol device with multipath input |
| CN102623761A (en) * | 2011-01-28 | 2012-08-01 | 比亚迪股份有限公司 | Battery management system and management method thereof |
| KR20150025428A (en) * | 2013-08-29 | 2015-03-10 | 주식회사 엘지화학 | Apparatus and Method for diagnosis of cell balancing switch |
| CN208158151U (en) * | 2018-03-14 | 2018-11-27 | 江门市地尔汉宇电器股份有限公司 | A kind of automobile batteries protection system |
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Address after: 529040 No. 336 Qinglan Road, Jianghai High-tech Development Zone, Jiangmen City, Guangdong Province Applicant after: Hanyu Group Co., Ltd. Address before: 529040 No. 336 Qinglan Road, Jianghai High-tech Development Zone, Jiangmen City, Guangdong Province Applicant before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. |