CN109794016A - A kind of electric bus battery intelligent monitoring fire extinguishing system - Google Patents
A kind of electric bus battery intelligent monitoring fire extinguishing system Download PDFInfo
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- CN109794016A CN109794016A CN201910097173.2A CN201910097173A CN109794016A CN 109794016 A CN109794016 A CN 109794016A CN 201910097173 A CN201910097173 A CN 201910097173A CN 109794016 A CN109794016 A CN 109794016A
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Abstract
A kind of electric bus battery intelligent proposed by the present invention monitors fire extinguishing system, comprising: main control chip, gas concentration sensor, temperature sensor, warning device and extinguishing device；Extinguishing device is mounted on outside battery compartment, is put out a fire for cooling down to the lithium battery in battery compartment；Main control chip is used to execute fire-fighting work state when the detected value of gas concentration sensor is greater than or equal to concentration threshold and temperature sensor detected value is greater than or equal to temperature threshold.Under fire-fighting work state, main control chip controls warning device and extinguishing device work simultaneously.The present invention is total, pass through the temperature monitoring in the real-time detection to such as carbon monoxide of object gas in battery compartment and battery compartment, lithium battery combustion case in battery compartment is judged in advance, to be cooled down by extinguishing device to lithium battery before lithium battery burning, be conducive to before lithium battery burns, flammability issues are eliminated, that is, avoid risk of explosion caused by cells burst, and be conducive to extend lithium battery service life.
Description
Technical field
The present invention relates to public safety technical fields more particularly to a kind of electric bus battery intelligent to monitor fire extinguishing system.
Background technique
With the development of new energy development and environmental consciousness, electric energy gradually replaces petroleum resources, moves into automobile function neck
Domain, electric motor car have been widely used.Currently, being oversize vehicle energy supply by electric energy, trial is had begun, such as electronic
Bus etc..But the oversize vehicles such as bus, energy consumption is serious, needs multiple groups battery to be energized, and battery is easy high temperature work
Make, causes risk of explosion.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of electric bus battery intelligents to monitor fire extinguishing system
System.
A kind of electric bus battery intelligent proposed by the present invention monitors fire extinguishing system, comprising: main control chip, gas concentration pass
Sensor, temperature sensor, warning device and extinguishing device；
Extinguishing device is mounted on outside battery compartment, is put out a fire for cooling down to the lithium battery in battery compartment；Warning device is mounted on
In driver's cabin, it to be used for onsite alarming；Main control chip is separately connected extinguishing device and warning device；Lithium battery is also connected with main control chip
For powering；
Early warning is preset in main control chip and two kinds of working conditions of putting out a fire, under early warning working condition, main control chip is for controlling
Warning device processed carries out early warning；Under fire-fighting work state, main control chip controls warning device and extinguishing device work simultaneously；
Gas concentration sensor and temperature sensor are installed in battery compartment, and gas concentration sensor is for detecting battery
Target gas levels in storehouse, temperature sensor is for detecting temperature in battery compartment；
Temperature threshold and concentration threshold are preset in main control chip, main control chip is used to obtain the inspection of gas concentration sensor
The detected value of measured value and temperature sensor and respectively compared with concentration threshold and temperature threshold；Main control chip is used in gas concentration
The detected value of sensor executes early warning work more than or equal to concentration threshold and when temperature sensor detected value is less than temperature threshold
State；Main control chip is used to be greater than or equal to concentration threshold and temperature sensor detected value in the detected value of gas concentration sensor
When more than or equal to temperature threshold, fire-fighting work state is executed.
Preferably, lithium battery is connect by temperature-sensitive cable with main control chip；Temperature-sensitive cable is in the environment for being lower than temperature threshold
Middle normal work, and it is short-circuit when operating temperature reaches temperature threshold；Main control chip real-time detection temperature-sensitive cable short-circuit signal, it is main
Chip is controlled to be used to execute fire-fighting work state in temperature-sensitive cable short circuit.
Preferably, warning device includes combined aural and visual alarm, and under early warning working condition, combined aural and visual alarm light flash is concurrent
Sound；Under fire-fighting work state, combined aural and visual alarm light flash and sounding before extinguishing device is opened, combined aural and visual alarm is in extinguishing device
Stop sounding after work and light persistently flashes.
Preferably, warning device further includes and the one-to-one alarm lamp of battery compartment, under early warning working condition, alarm
Indicator light flashing；Under fire-fighting work state, alarm lamp is always on after extinguishing device work.
It preferably, further include that setting is driving indoor fire extinguishing indicator light, fire extinguishing indicator light and extinguishing device one-to-one correspondence
And connect, corresponding fire extinguishing indicator light lights under extinguishing device working condition.
It preferably, further include that setting is driving the indoor and one-to-one switch key of extinguishing device, switch key use
It works in manually controlling corresponding extinguishing device.
Preferably, gas concentration sensor uses carbon monoxide transducer.
Preferably, concentration threshold 185-195ppm.
Preferably, temperature threshold is 75-85 DEG C.
A kind of electric bus, including multiple battery compartments are mounted on a lithium battery in each battery compartment；This is electronic
Bus monitors fire extinguishing system using electric bus battery intelligent as described in any one of claim 1 to 9；Electric bus electricity
In the intellectual monitoring fire extinguishing system of pond, gas concentration sensor, temperature sensor and extinguishing device and battery compartment are corresponded.
A kind of electric bus battery intelligent proposed by the present invention monitors fire extinguishing system, by object gas example in battery compartment
As carbon monoxide real-time detection and battery compartment in temperature monitoring, judge lithium battery combustion case in battery compartment in advance, from
And cooled down by extinguishing device to lithium battery before lithium battery burning, be conducive to before lithium battery burns, it is hidden to eliminate burning
Suffer from, that is, avoids risk of explosion caused by cells burst, and be conducive to extend lithium battery service life.
In the present invention, for the operating temperature of lithium battery, carried out by temperature sensor and temperature-sensitive cable two ways real
When detect, be conducive to report lithium battery hot operation state by temperature-sensitive cable in temperature sensor fault, avoid temperature
Spend sensor fault caused by lithium battery operating temperature detect mistake, thus guarantee to lithium battery operating temperature real-time detection can
By property, to guarantee the fire extinguishing reliability by extinguishing device to High Temperature Lithium Cell.
A kind of electric bus proposed by the present invention is divided lithium battery by battery compartment, so that the lithium in each battery compartment
Battery works independently, and is conducive to avoid lithium battery simultaneous faults, to improve the reliability of electric bus power supply.This is electronic
In bus, fire extinguishing system is monitored by electric bus battery intelligent, is realized to the only of the lithium battery in each battery compartment
Vertical monitoring and fire extinguishing, ensure that the independence of each lithium battery power supply, safety detection and troubleshooting.
Detailed description of the invention
Fig. 1 is a kind of embodiment proposed by the present invention
Fig. 2 is the hardware connection figure that a kind of electric bus battery intelligent proposed by the present invention monitors fire extinguishing system.
Battery compartment 1, lithium battery 2, gas concentration sensor 3, temperature sensor 4, warning device 5, combined aural and visual alarm 51, report
Alert indicator light 52, extinguishing device 6, fire extinguishing indicator light 61.
Specific embodiment
Referring to Fig.1, a kind of electric bus battery intelligent proposed by the present invention monitors fire extinguishing system, comprising: main control chip, gas
Concentration sensors 3, temperature sensor 4, warning device 5 and extinguishing device 6.
Extinguishing device 6 is mounted on outside battery compartment 1, is put out a fire for cooling down to the lithium battery 2 in battery compartment 1, to avoid electronic
2 hot operation of lithium battery of vehicle causes risk of explosion.Warning device 5 is mounted in driver's cabin, is used for onsite alarming, is driven with reminding
The Field Force such as the person of sailing are to 2 abnormal operation of lithium battery.Main control chip is separately connected extinguishing device 6 and warning device 5.Lithium electricity
Pond 2 is also connected with main control chip for powering.
Early warning is preset in main control chip and two kinds of working conditions of putting out a fire, under early warning working condition, main control chip is for controlling
Warning device 5 processed carries out early warning to remind Field Force, to pass through the live people such as driver under 2 abnormal conditions of lithium battery
Member carries out artificial judgment, the generation of accident other than avoiding to failure.Under fire-fighting work state, main control chip controls alarm dress simultaneously
Set 5 and the work of extinguishing device 6.
Gas concentration sensor 3 and temperature sensor 4 are installed in battery compartment 1, and gas concentration sensor 3 is for examining
Target gas levels in battery compartment 1 are surveyed, temperature sensor 4 is for detecting temperature in battery compartment 1.Specifically, in present embodiment,
Gas concentration sensor 3 uses carbon monoxide transducer.Sentenced by the carbon monoxide discharged under detection 2 malfunction of lithium battery
Whether disconnected 2 failure of lithium battery.
Temperature threshold and concentration threshold are preset in main control chip, main control chip is for obtaining gas concentration sensor 3
The detected value of detected value and temperature sensor 4 and respectively compared with concentration threshold and temperature threshold.Main control chip is used in gas
The detected value of concentration sensor 3 is executed more than or equal to concentration threshold and when 4 detected value of temperature sensor is less than temperature threshold
Early warning working condition.Main control chip is used to be greater than or equal to concentration threshold in the detected value of gas concentration sensor 3 and temperature passes
When 4 detected value of sensor is greater than or equal to temperature threshold, fire-fighting work state is executed.Specifically, in present embodiment, by electricity
The real-time detection of object gas such as carbon monoxide and the temperature monitoring in battery compartment 1, judge battery compartment 1 in advance in pond storehouse 1
Interior 2 combustion case of lithium battery is conducive to be cooled down by extinguishing device 6 to lithium battery 2 before lithium battery 2 burns
Before lithium battery 2 burns, flammability issues are eliminated, that is, avoid risk of explosion caused by cells burst, and be conducive to extend lithium battery 2
Service life.
In present embodiment, lithium battery 2 is connect by temperature-sensitive cable with main control chip.Temperature-sensitive cable is being lower than temperature threshold
Environment in work normally, and it is short-circuit when operating temperature reaches temperature threshold.The cable short circuit of main control chip real-time detection temperature-sensitive
Signal, main control chip are used to execute fire-fighting work state in temperature-sensitive cable short circuit.In this way, in present embodiment, for lithium electricity
The operating temperature in pond 2 is measured in real time by temperature sensor 4 and temperature-sensitive cable two ways, is conducive in temperature sensing
4 failure of device reports 2 hot operation state of lithium battery by temperature-sensitive cable, avoids lithium caused by 4 failure of temperature sensor
2 operating temperature of battery detects mistake, to guarantee the reliability to 2 operating temperature real-time detection of lithium battery, to guarantee to pass through
Fire extinguishing reliability of the extinguishing device 6 to High Temperature Lithium Cell 2.
Specifically, gas concentration sensor 3 uses carbon monoxide transducer, concentration threshold 185- in present embodiment
195ppm, temperature threshold are 75-85 DEG C.
In present embodiment, warning device 5 includes combined aural and visual alarm 51, under early warning working condition, 51 lamp of combined aural and visual alarm
Optical flare and sounding, to remind Field Force to check 2 failure of lithium battery in time.Under fire-fighting work state, extinguishing device 6 is opened
Before, 51 light flash of combined aural and visual alarm and sounding, combined aural and visual alarm 51 stops sounding after the work of extinguishing device 6 and light continues
Flashing.In this way, both having eliminated combined aural and visual alarm 51 in time continues noise pollution caused by sounding, it is real-time further through light flash
It shows the fire extinguishing state of lithium battery 2, reminds Field Force that concern keeps away 2 failure of lithium battery manually to be checked when needed
Exempt from 2 fault condition of lithium battery further to deteriorate.
In this real-time mode, warning device 5 further includes and the one-to-one alarm lamp 52 of battery compartment 1, early warning work
Under state, alarm lamp 52 flashes；Under fire-fighting work state, alarm lamp 52 is always on after the work of extinguishing device 6.Alarm
The setting of indicator light 52 is conducive to the lithium battery 2 that Field Force locks failure in time, improves 2 fault location efficiency of lithium battery.
It further include that setting is driving indoor fire extinguishing indicator light 61, indicator light 61 of putting out a fire is filled with fire extinguishing in present embodiment
It sets 6 one-to-one correspondence and connects, corresponding fire extinguishing indicator light 61 lights under 6 working condition of extinguishing device.So that driver is according to going out
Fiery 61 state of indicator light implementation judges under fire-fighting work state that whether extinguishing device 6 is by effectively start.In present embodiment, also
The indoor and one-to-one switch key of extinguishing device 6 is being driven including setting, switch key is corresponding for manually controlling
Extinguishing device 6 works.In this way, convenient under fire-fighting work state, if extinguishing device 6 is not by effectively start, driver Ke Tong
It crosses switch key and manually boots extinguishing device 6, to guarantee the timely fire extinguishing and cooling to High Temperature Lithium Cell 2.In this way, this implementation
In mode, while the lithium battery 2 to electric bus carries out intellectual monitoring and fire extinguishing, in conjunction with manual fire-extinguishing operations, favorably
In the timeliness for guaranteeing to handle 2 failure of lithium battery under 2 failure of lithium battery.
A kind of electric bus proposed in present embodiment, including multiple battery compartments 1 are pacified in each battery compartment 1
Equipped with a lithium battery 2；Any of the above-described kind of electric bus battery intelligent of the electric bus monitors fire extinguishing system.The electric bus
In the electric bus battery intelligent monitoring fire extinguishing system that vehicle uses, gas concentration sensor 3, temperature sensor 4 and extinguishing device 6
It is corresponded with battery compartment 1.In this way, lithium battery 2 is divided by battery compartment 1, in the electric bus so that each battery compartment 1
Interior lithium battery 2 works independently, and is conducive to avoid 2 simultaneous faults of lithium battery, to improve the reliable of electric bus power supply
Property.In the electric bus, fire extinguishing system is monitored by electric bus battery intelligent, is realized in each battery compartment 1
The independent monitoring and fire extinguishing of lithium battery 2 ensure that the independence of each power supply of lithium battery 2, safety detection and troubleshooting.
The above, preferable specific embodiment only of the present invention, but protection scope of the present invention not office
Be limited to this, anyone skilled in the art in the technical scope disclosed by the present invention, technology according to the present invention
Scheme and its inventive concept are subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of electric bus battery intelligent monitors fire extinguishing system characterized by comprising main control chip, gas concentration sensing
Device (3), temperature sensor (4), warning device (5) and extinguishing device (6)；
Extinguishing device (6) is mounted on battery compartment (1) outside, puts out a fire for cooling down to the lithium battery (2) in battery compartment (1)；Alarm dress
It sets (5) to be mounted in driver's cabin, is used for onsite alarming；Main control chip is separately connected extinguishing device (6) and warning device (5)；Lithium
Battery (2) is also connected with main control chip for powering；
Early warning is preset in main control chip and two kinds of working conditions of putting out a fire, under early warning working condition, main control chip is for controlling report
Alarm device (5) carries out early warning；Under fire-fighting work state, main control chip controls warning device (5) and extinguishing device (6) work simultaneously
Make；
Gas concentration sensor (3) and temperature sensor (4) are installed in battery compartment (1), and gas concentration sensor (3) is used for
Battery compartment (1) interior target gas levels are detected, temperature sensor (4) is for detecting battery compartment (1) interior temperature；
Temperature threshold and concentration threshold are preset in main control chip, main control chip is used to obtain the inspection of gas concentration sensor (3)
The detected value of measured value and temperature sensor (4) and respectively compared with concentration threshold and temperature threshold；Main control chip is used in gas
The detected value of concentration sensor (3) is held more than or equal to concentration threshold and when temperature sensor (4) detected value is less than temperature threshold
Row early warning working condition；Main control chip is used to be greater than or equal to concentration threshold and temperature in the detected value of gas concentration sensor (3)
When spending sensor (4) detected value more than or equal to temperature threshold, fire-fighting work state is executed.
2. electric bus battery intelligent as described in claim 1 monitors fire extinguishing system, which is characterized in that lithium battery (2) passes through
Temperature-sensitive cable is connect with main control chip；Temperature-sensitive cable works normally in the environment lower than temperature threshold, and reaches in operating temperature
Short circuit when to temperature threshold；Main control chip real-time detection temperature-sensitive cable short-circuit signal, main control chip are used in temperature-sensitive cable short circuit
Shi Zhihang fire-fighting work state.
3. electric bus battery intelligent as described in claim 1 monitors fire extinguishing system, which is characterized in that warning device (5) packet
It includes combined aural and visual alarm (51), under early warning working condition, combined aural and visual alarm (51) light flash and sounding；Under fire-fighting work state,
Combined aural and visual alarm (51) light flash and sounding before extinguishing device (6) is opened, combined aural and visual alarm (51) work in extinguishing device (6)
Stop sounding afterwards and light persistently flashes.
4. electric bus battery intelligent as claimed in claim 3 monitors fire extinguishing system, which is characterized in that warning device (5) is also
Including with the one-to-one alarm lamp (52) of battery compartment (1), under early warning working condition, alarm lamp (52) flashing；It goes out
Under fiery working condition, alarm lamp (52) is always on after extinguishing device (6) work.
5. electric bus battery intelligent as described in claim 1 monitors fire extinguishing system, which is characterized in that further include that setting is being driven
Indoor fire extinguishing indicator light (61) is sailed, fire extinguishing indicator light (61) is corresponded and connect, extinguishing device (6) with extinguishing device (6)
Corresponding fire extinguishing indicator light (61) lights under working condition.
6. electric bus battery intelligent as claimed in claim 5 monitors fire extinguishing system, which is characterized in that further include that setting is being driven
Indoor and extinguishing device (6) one-to-one switch key is sailed, switch key is for manually controlling corresponding extinguishing device (6)
Work.
7. electric bus battery intelligent as described in claim 1 monitors fire extinguishing system, which is characterized in that gas concentration sensor
(3) carbon monoxide transducer is used.
8. electric bus battery intelligent as claimed in claim 7 monitors fire extinguishing system, which is characterized in that concentration threshold 185-
195ppm。
9. electric bus battery intelligent as described in claim 1 monitors fire extinguishing system, which is characterized in that temperature threshold 75-
85℃。
10. a kind of electric bus, which is characterized in that including multiple battery compartments (1), be mounted in each battery compartment (1)
One lithium battery (2)；The electric bus is monitored using electric bus battery intelligent as described in any one of claim 1 to 9
Fire extinguishing system；The electric bus battery intelligent monitors in fire extinguishing system, gas concentration sensor (3), temperature sensor (4) and goes out
Fiery device (6) and battery compartment (1) correspond.
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| CN201910097173.2A CN109794016A (en) | 2019-01-31 | 2019-01-31 | A kind of electric bus battery intelligent monitoring fire extinguishing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910097173.2A CN109794016A (en) | 2019-01-31 | 2019-01-31 | A kind of electric bus battery intelligent monitoring fire extinguishing system |
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| CN201910097173.2A Pending CN109794016A (en) | 2019-01-31 | 2019-01-31 | A kind of electric bus battery intelligent monitoring fire extinguishing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111249652A (en) * | 2020-01-19 | 2020-06-09 | 国网江苏省电力有限公司电力科学研究院 | Water mist fire extinguishing device and method applied to lithium iron phosphate energy storage battery |
| CN113500945A (en) * | 2021-07-13 | 2021-10-15 | 中联重科股份有限公司 | Battery intelligent security system and mining dump truck |
| CN115147992A (en) * | 2022-06-27 | 2022-10-04 | 海天消防科技股份有限公司 | Automatic monitoring and alarming device for fire protection of lithium ion battery energy storage power station |
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Cited By (3)
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Effective date of registration: 20191216 Address after: 230000 Building 1, Hefei Institute of Public Safety, Tsinghua University, 5999 Xiyou Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Ze Zhong Safety Science company limited Applicant after: Beijing Chen'an Science and Technology Co., Ltd. Applicant after: HEFEI PUBLIC SECURITY RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY Address before: 230000 Floor 1-3, Building 4, Hefei Institute of Public Safety, Tsinghua University, 5999 Xiyou Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant before: Anhui Chen control Intelligent Technology Co., Ltd. Applicant before: Beijing Chen'an Science and Technology Co., Ltd. Applicant before: HEFEI PUBLIC SECURITY RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY |
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