CN208158151U - A kind of automobile batteries protection system - Google Patents
A kind of automobile batteries protection system Download PDFInfo
- Publication number
- CN208158151U CN208158151U CN201820350721.9U CN201820350721U CN208158151U CN 208158151 U CN208158151 U CN 208158151U CN 201820350721 U CN201820350721 U CN 201820350721U CN 208158151 U CN208158151 U CN 208158151U
- Authority
- CN
- China
- Prior art keywords
- module
- battery pack
- control module
- power battery
- switch module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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 utility model discloses a kind of automobile batteries to protect system; including the power battery pack for providing power supply for automobile, the control module for being managed as a whole to power supply and the switch module for batteries different in power battery pack to be carried out with selection; 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 utility model relates to automobile batteries protection technique field, especially a kind of automobile batteries protects system.
Background technique
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 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
A period of time is successively connected in every group of battery, carries out switch control generally by the switch module.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.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of automobile batteries to protect system, it can be timely
Whether detection switch module breaks down, to alarm in time failure, avoids damage battery pack or battery pack.
Technical solution used by the invention for solving the technical problem is：
A kind of automobile batteries protects system, including for providing power supply for automobile power battery pack, be used for power supply into
The control module of row overall management and switch module for batteries different in power battery pack to be carried out with selection, 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.
It further, further include for the choosing the voltage transmission by battery outputs different in power battery pack to control module
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 battery outputs different 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 protective module, protective module be set to power battery pack with
Between switch module.
Further, the quantity of battery is consistent in the quantity with power battery pack of switch module, and switch module includes switch
Field-effect tube, the grid of switching field effect transistor are connected to the control signal output of control module, the source electrode of switching field effect transistor
It is connected respectively with the voltage detection module in the battery and control module in power battery pack, the drain electrode of switching field effect transistor 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, net output voltage U1 is selected, the switch module on the road Ze Gai is normal, and corresponding switching field effect transistor 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 road 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 road Ze Gai, corresponding switching field effect transistor
Open circuit.
Further, switch module further includes anti-reverse two pole for preventing from causing back end device to be damaged because battery is reversely connected
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 switching field effect transistor
Module.
Further, the quantity of battery is consistent in the quantity with power battery pack of potential-divider network, and potential-divider network includes first
Divider resistance and the second divider resistance, the first divider resistance and the second divider resistance are connected in series in switch module and with reference to ground
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, selecting network includes switch
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, protective 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 utility model has the beneficial effects that：A kind of automobile batteries protection system, switch module can be to power battery pack
In different batteries selected, when control module control switch module gate one of battery when, be transmitted across by the battery
The voltage signal come can be input among the time statistical module in control module by corresponding switch module, be united when the time
When meter module detects voltage signal, time statistical module will do it time statistics, which is switch module
Turn-on time；When reaching setting time value between when closed, control module will disconnect current switch module, if but the switch
When module breaks down and leads to not disconnect, battery can continue to transmit voltage to time statistical module by the switch module
Signal, and time statistical module then can persistently count the turn-on time, when the time statistical value of time statistical module is big
When setting time value, control module judges switch module failure, therefore control module can out-put supply failure
Alarm signal reminds the user that maintenance in time or replacement power battery pack.Therefore, the automobile batteries of the utility model protects system
Whether system detection switch module can break down in time, so as to alarm in time failure, avoid damage battery pack
Or battery pack.
Detailed description of the invention
The utility model is described in further detail with example with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of the automobile batteries protection system of the utility model；
Fig. 2 is the circuit diagram of the automobile batteries protection system of the utility model.
Specific embodiment
A kind of automobile batteries of-Fig. 2 referring to Fig.1, the utility model protect system, have numerous embodiments, Neng Gouji
When detection switch module 3 whether break down, so as to alarm in time failure, avoid damage battery pack or battery
Packet.
Embodiment one：
The automobile batteries of-Fig. 2 referring to Fig.1, the utility model protect system, including for providing the dynamic of power supply for automobile
Power battery pack 1, the control module 2 for being managed as a whole to power supply and for being carried out to batteries different in power battery pack 1
The switch module 3 of selection is provided with the time statistical module 21 for comparing power supply turn-on time, power among control module 2
Battery pack 1, switch module 3 and time statistical module 21 are sequentially connected；When time statistical module 21 is according to the conducting of switch module 3
Between out-put supply failure alarm signal.Wherein, it is additionally provided among control module 2 for detecting by different in power battery pack 1
The voltage detection module 22 of the voltage value of battery output, voltage detection module 22 are connect with the battery in power battery pack 1.Switch
The quantity of module 3 is consistent with the quantity of battery in power battery pack 1, and switch module 3 includes switching field effect transistor 31, switch yard
The grid of effect pipe 31 is connected to the control signal output of control module 2, the source electrode of switching field effect transistor 31 respectively with power
Battery in battery pack 1 is connected with the voltage detection module 22 in control module 2, and the drain electrode of switching field effect transistor 31 is connected to
Time statistical module 21 in control 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 will do it time statistics, which is the turn-on time of switch module 3；Reach between when closed and sets
Fix time when being worth, 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 continue to transmit voltage signal to time statistical module 21 by the switch module 3, 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 greater than setting time value, control
Molding block 2 judges the switch module 3 failure, therefore the meeting out-put supply failure alarm signal of control module 2, to mention
Awake user overhauls or replaces in time power battery pack 1.Therefore, the automobile batteries of the utility model protects system, can examine in time
It surveys whether switch 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 example 1, switch module 3 further include for preventing from leading because battery is reversely connected
The anti-reverse diode 32 of back end device damage is caused, the anode and cathode of anti-reverse diode 32 are 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
The problem of pond is reversely connected and back end device is caused to be damaged.It, can due to the restriction effect to conducting direction of anti-reverse diode 32
Occur the case where parasitic diode mutual conduction of the positive and negative anodes of battery by switching field effect transistor 31 when battery being prevented to be reversely connected,
Therefore, anti-reverse diode 32 can not only avoid the problem that battery damages, and can be avoided circuit system and damage
Bad or even serious problems on fire.
Embodiment three：
- Fig. 2 referring to Fig.1, on the basis of example 2, the automobile batteries protection system of the utility model further includes using
In the partial pressure net of the voltage value that control module 2 can identify will be converted to by the voltage value of the battery output in power battery pack 1
Network 4, potential-divider network 4 are set between switch module 3 and control module 2.Wherein, the quantity Yu power battery pack 1 of potential-divider network 4
The quantity of middle battery 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 second divider resistance 42 be connected in series in switch module 3 and with reference between 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, pass through the first divider resistance 41 and second point
The partial pressure of piezoresistance 42 acts on, and the drain voltage of switching field effect transistor 31 can be divided to the electricity that control module 2 can bear
Within the scope of pressure, so that time statistical module 21 among control module 2 being capable of drain electrode electricity to switching field effect transistor 31
Pressure detect and the turn-on time of statistic switch field-effect tube 31, event whether occurs so as to accurate judgement switch module 3
Barrier.In addition, control module 2 can also by the control signal of its output with the voltage signal that receives to switching field effect transistor 31
Carry out specific fault detection.For example, the control signal output when control module 2 is exported to the grid of switching field effect transistor 31
High level useful signal, and when time statistical module 21 receives high level signal, and when the control signal of control module 2 is defeated
Outlet exports the non-effective signal of low level, and when time statistical module 21 receives low level signal, it can judge currently to open
Field-effect tube 31 is closed to work normally.If the control signal output of control module 2 exports high level useful signal, and the time unites
When meter module 21 receives low level signal, then it can determine whether that current switch field-effect tube 31 is open-circuit fault；If control module 2
Control signal output export the non-effective signal of low level, and when time statistical module 21 receives high level signal, then may be used
Judge current switch field-effect tube 31 for short trouble.
Example IV：
- Fig. 2 referring to Fig.1, on the basis of embodiment three, the automobile batteries protection system of the utility model further includes using
In the selection network 5 the voltage transmission by battery outputs different in power battery pack 1 to control module 2, the setting of network 5 is selected
Between potential-divider network 4 and control module 2.Wherein, the quantity and the quantity phase one of battery in power battery pack 1 of network 5 are selected
It causes, selecting network 5 includes switching diode 51, and the anode and cathode of switching diode 51 are connected to the defeated of potential-divider network 4
Time statistical module 21 in outlet and control module 2.There are two types of states for each switch module 3：Turn-on and turn-off, both shapes
State corresponds to two output voltages U0 and U1 of selection network 5, when each switch module 3 is connected or turns off, corresponding partial pressure
The collected voltage of network 4 is essentially identical.When a switch module 3 is connected, 5 output voltage U0 of network is selected, and turning off should
When switch module 3, select the switch module 3 on 5 road output voltage U1, Ze Gai of network normal, corresponding switching field effect transistor 31 is just
Often；When a switch module 3 is connected, when selecting 5 output voltage U0 of network, and turning off the switch module 3, select network 5 defeated
3 failure of switch module on the road voltage U0 out, Ze Gai, corresponding 31 short circuit of switching field effect transistor；When one switch module 3 of conducting
When, when selecting 5 output voltage U1 of network, and turning off the switch module 3, select 5 output voltage U1 of network, the switching molding on the road Ze Gai
3 failure of block, corresponding switching field effect transistor 31 are opened a way.Specifically, the switching diode 51 in network 5 is selected, can not only be limited
The voltage signal directional transmissions that are exported by potential-divider network 4 are made to control module 2, and can also be being exported by switch module 3
The maximum voltage signal of voltage value chooses in voltage signal.Since switching diode 51 is of approximately the pressure of 0.7V
Drop, therefore, only voltage signal of the voltage value greater than 0.7V can be detected effectively, moreover, because control module 2 is one by one
Ground carries out detection processing to the battery in power battery pack 1, therefore only one switching field effect transistor 31 is switched on every time, institute
With the voltage signal transmitted by switching field effect transistor 31 switched on accurately can be input to control by switching diode 51
Among molding block 2, and the interference ripple signal generated by other switching field effect transistors 31, since its voltage value is less than 0.7V, because
This all 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, the automobile batteries protection system of the utility model further includes using
The protective module 6 of overcurrent protection, protective module 6 are set between power battery pack 1 and switch module 3 in.Wherein, it protects
Protecting module 6 includes fuse 61 and filter inductance 62, and fuse 61 and filter inductance 62 are connected in series in power battery pack 1
Between voltage detection module 22 in battery and control module 2, the junction of filter inductance 62 and voltage detection module 22 with open
Module 3 is closed to be connected.Specifically, when short circuit event occurs in the transmission line between the battery in power battery pack 1 and control module 2
When barrier, fuse 61 can be melted away, so that the transmission line between battery and control module 2 disconnects, at this point, control module
Voltage detection module 22 in 2 will test less than the voltage exported by battery, so, protective module 6 can not only play overcurrent
The effect of protection, and can cooperate with control module 2 and play the role of system short-circuit detection.
Be above to the utility model it is preferable implementation illustrated, but the utility model be not limited to it is above-mentioned
Embodiment, those skilled in the art can also make various be equal without departing from the spirit of the present invention
Deformation or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of automobile batteries protects system, it is characterised in that：Including for providing power supply for automobile power battery pack (1),
Control module (2) for being managed as a whole to power supply and for selecting batteries different 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：It further include for that 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：It further include for by described dynamic
Selection network (5) of the voltage transmission of different battery outputs to 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 1 protects system, it is characterised in that：Among the control module (2)
It is additionally provided with the voltage detection module (22) for detecting the voltage value by battery outputs different 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：It further include being used for overcurrent protection
The protective module (6) of effect, the protective 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 switching field effect transistor (31),
The grid of the switching field effect transistor (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 switching field effect transistor (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 from causing back end device to be damaged because battery is reversely connected, the anti-reverse diode (32)
Anode and cathode be connected to the time in the drain electrode and the control module (2) of the switching field effect transistor (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 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
State switching diode (51) anode and cathode be connected to the potential-divider network (4) output end 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 protective 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 |
|---|---|---|---|
| CN201820350721.9U CN208158151U (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 |
|---|---|---|---|
| CN201820350721.9U CN208158151U (en) | 2018-03-14 | 2018-03-14 | A kind of automobile batteries protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208158151U true CN208158151U (en) | 2018-11-27 |
Family
ID=64391393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820350721.9U Active CN208158151U (en) | 2018-03-14 | 2018-03-14 | A kind of automobile batteries protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208158151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321904A (en) * | 2018-03-14 | 2018-07-24 | 江门市地尔汉宇电器股份有限公司 | A kind of automobile batteries protection system |
-
2018
- 2018-03-14 CN CN201820350721.9U patent/CN208158151U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321904A (en) * | 2018-03-14 | 2018-07-24 | 江门市地尔汉宇电器股份有限公司 | A kind of automobile batteries protection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207426747U (en) | A kind of multifunctional lithium battery management of charging and discharging system | |
| CN103713255B (en) | A kind of fault detection method, system and controller | |
| CN102969756B (en) | Intelligent storage battery pack with self-detection function and connection circuit thereof | |
| CN102723754B (en) | Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system | |
| CN111555393B (en) | Multi-battery-assembly management device, control method and electric tool | |
| CN104064827A (en) | Nickel-metal hydride battery pack with safety protection system | |
| CN102664454A (en) | Non-floating charging type substation direct current power supply system based on iron lithium battery | |
| CN104333081A (en) | Online maintenance method of distributed power supply | |
| CN110247442A (en) | For protecting the protection circuit and guard method and battery management system of battery pack | |
| CN102916387B (en) | A kind of protective circuit exporting shunt for many mouthfuls of POE chargers | |
| CN107040021A (en) | A kind of battery modules series connection management circuit | |
| CN205376676U (en) | Battery pack management system | |
| CN104991154A (en) | Electric vehicle battery pack single cell voltage acquisition line disconnection detecting method and system | |
| CN208158151U (en) | A kind of automobile batteries protection system | |
| CN104655907B (en) | Battery pack voltage check device | |
| CN104333082B (en) | Distributed power source on-line maintenance system and method | |
| CN206283281U (en) | Battery high current fills the protection and supervisory circuit with electric discharge soon | |
| CN101764403B (en) | UUT protective circuit | |
| CN108899972A (en) | A kind of charging control circuit and its control method of charger | |
| CN210680458U (en) | Battery management system with secondary protection function | |
| CN203278206U (en) | Battery pack discharging protection circuit and device | |
| CN209001614U (en) | A kind of charging control circuit of charger | |
| CN117054739A (en) | Earth insulation resistance detection circuit for battery cluster positive and negative bus | |
| CN108767974B (en) | Automatic power supply switching circuit with battery under-voltage turn-off function | |
| CN108321904A (en) | A kind of automobile batteries protection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 529040 No. 336 Qinglan Road, Jianghai High-tech Development Zone, Jiangmen City, Guangdong Province Patentee after: Hanyu Group Co., Ltd. Address before: 529040 No. 336 Qinglan Road, Jianghai High-tech Development Zone, Jiangmen City, Guangdong Province Patentee before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |