CN106976540A - The method and device that independent battery compartment ensures fire safety can be disconnected - Google Patents
The method and device that independent battery compartment ensures fire safety can be disconnected Download PDFInfo
- Publication number
- CN106976540A CN106976540A CN201710148732.9A CN201710148732A CN106976540A CN 106976540 A CN106976540 A CN 106976540A CN 201710148732 A CN201710148732 A CN 201710148732A CN 106976540 A CN106976540 A CN 106976540A
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- battery
- battery flat
- extension
- main body
- feature
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- 238000000034 method Methods 0.000 title abstract description 7
- 230000005484 gravity Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 2
- 230000001133 acceleration Effects 0.000 claims 1
- 238000007664 blowing Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 8
- 229910001416 lithium ion Inorganic materials 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007123 defense Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910000648 terne Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plant in aircraft; Aircraft characterised thereby
- B64D27/02—Aircraft characterised by the type or position of power plant
- B64D27/24—Aircraft characterised by the type or position of power plant using steam, electricity, or spring force
-
- B63B2755/00—
Abstract
The characteristics of for electric yacht and aircraft, invention can disconnect the method and device that independent battery compartment ensures fire safety, principal character：First：More than one battery flat is set, the left, center, right region of hull bottom is separately positioned on, can be with selective rhizotomy after percentage of batteries cabin is on fire, safe battery flat is remained in and powered in main body.Second, connected using extension, during sign of causing danger, separate battery flat, using one section of safe distance of holding between extension and hull, and continue to keep power supply.
Description
Technical field
The present invention relates to the extinguishment fire suppression technology and equipment of ship, aircraft and automobile, belong to the energy, traffic and security against fire skill
Art field.
Background technology
21 century the '20s are the ages of battery, with the development of various hybrid vehicles, to battery
Security performance requires more and more higher.Particularly plug-in hybrid-power automobile (PHEV), electric car (EV) and electric ship are required more
Height, is calculated according to 18650 battery core product control rate 2ppm of safe highest standard in current industry（The famous electric car in the U.S.）, often
100,000 cars are sold, just there are 1600 excessive risks that there is spontaneous combustion.
Lithium-ions battery is in addition to small volume, lightweight feature, and nominal voltage (Nominal Voltage) is up to
3.6 volts, energy density it is very high.But lithium battery is inherently as a petrol drum for carrying lighter, the both positive and negative polarity energy of battery
Amount is very high, and just as a lighter, generation is short-circuit, overcharge, mistake is put can cause overtemperature；Current electrolyte and barrier film is most
Inflammable organic matter, just as petrol drum, lithium ion battery when occurring thermal runaway, thermal discharge at most be also electrolyte.
The security protection of battery can be divided into active defense and passive protection, and Chinese Microvast Inc. is using the electrolyte and resistance to of not burning
High temperature diaphragm ensures that battery does not burn, and belongs to active defense；The STL Intelligent hot flow control bodies of micro- grand also use submergence mode are passively prevented
As all good material of insulation, fire-retardant, heat conductivility the feelings of trickle internal short-circuit can occur in internal battery pack for shield technology, STL
Under condition, quick isolation thermal runaway point, while reducing the temperature of thermal runaway point using liquid, farthest reduces battery pack peace
Full blast danger.As the system of a Passive Defence, STL, also being capable of balancing battery group internal temperature difference, simultaneously in addition to safety
More preferable temperature control is realized using outer loop, even if while battery pack leakage, can also be found by liquid detecting in time[1]。
Tesla motor corporations of the U.S. are the representatives of vehicle technology, and the passive protection technology that they use is protected including battery bottom
The technologies such as shield, compartment escape ensure fire safety, and Model S battery pack is arranged on vehicle bottom, wrapped up by thick steel plate.
Battery is the battery of ternary material 18650 of custom-made, both positive and negative polarity arrangement, series-parallel system connection.Battery is scattered in module, with
Fire wall separates.Tesla once had several automobiles on the way to meet with object impact damage battery protection shell, so as to cause lithium electricity
Pond accident on fire.Therefore, from March, 2014, tesla is that Model S add three pieces of underbody armors：Circular hollow aluminium
Bar, titanium alloy backplate, aluminum stripper plate.After the protective cover of this set bottom is installed, do not hear because puncturing bottom also temporarily
Fire accident occurs caused by portion's battery.From bottom around the embedding solid collision prevention girders of battery pack, collision from surrounding is risen
To protective effect[2].Tesla companies also use active defense technology：In order to which the battery performance for preventing excessive discharge and recharge and bringing is bad
Change, it is necessary to set and the subsystem (IC) that voltage and temperature are monitored is carried out to each battery unit in battery pack.Meanwhile, examine
Consider this subsystem and be also possible to failure, in addition it is also necessary to have the independent parallel system for detecting the working state of system.
Current electric ship is than electric car slower development, based on small-sized, lead-acid battery, and fire-fighting is developed not according to own characteristic
Strategy, due to battery be difficult it is on fire, therefore can be using the usual reinforcement bottom plate-escape strategy of electric car.
The still preferred Li-ion batteries piles of electronic ship power.Reason is for present condition.It is cleaning energy the most appropriate
Source, on public transport bus, mini-bus and family-sized car using being proven.1. the power specific energy larger 2. life-span than LiMn2O4,
The batteries such as cobalt acid lithium are long, more than 2 ~ 3 kilocycles time.3. cost drops to 5 ~ 6 yuan present/Ah from 16 ~ 17 yuan/Ah of past.
Plus long lifespan, therefore use cost can be greatly reduced.4. monomer laminated battery plate can be more than 600Ah.Along with present
Inversion transformation technique be have developed rapidly, from 12V, 24V inversion to Ac 380V, 420V, and very convenient and efficiency is also substantially increased, can
Up to more than 95%, this reduces the trouble of management system.5. the speed governing realized to motor is combined with alternating frequency conversion technique again
Control is just very convenient.6. due to being used on ship, realize that the cooling of battery system is just more convenient.Therefore the first choice of power
It is lithium ion（LiFePO4）Power battery pack adds sun boost charge battery pack, wherein needing to add a set of solar power generation and filling
Electric system, and boost, inversion and lithium battery group are shared.Lithium-ion-power cell group（Boost charge containing solar energy）Power is provided,
Driving frequency control hair French is electronic to drive the propeller rotated at a high speed again（It is single or double to push away）, make ship become big tractive force and
Move forward.Propeller extension is mounted with radome fairing, and its front end has installed the steel wire of high intensity additional.But do not develop also both at home and abroad
Go out safe lithium ion electric ship, battery flat ensures the method and device of fire safety also without successful case.
Electric airplane is currently in minicomputer conceptual phase, and battery capacity is small, same to be protected by the way of bottom plate and retaining wall is strengthened
Demonstrate,prove fire safety.
Bibliography
[1] micro- grand issue is not burnt battery technology, http://www.jdzj.com/diangong/article/2016-7-7/
74866-1.htm
[2] tesla's details science popularization：Anti- " tired " power down preventing of fire prevention, http://www.d1ev.com/37308.html
The content of the invention
Pleasure-boat and aircraft have fixed voyage, and air route is open to be easy to sunshine, therefore is more suitable for developing electric drive.Due to trip
The own characteristic of ship sum, escape is more difficult to than electric car, and passenger is also impossible to leave in the case of hull and aircraft fire
Hull is escaped, therefore for holding ignitable lithium polymer battery, should not win escape using the usual reinforcement bottom plate of electric car
The fire prevention strategy of time.However, compared to electric car, ship and aircraft have intrinsic advantage:Battery flat can be rapid using self gravitation
Depart from hull and aircraft.Such as electric ship in Fig. 1 is equipped with three independent battery compartments（3）, one of them is on fire（5）, high temperature melting
Change after fusible metal connector, battery flat（5）It is automatic under gravity to disengage hull（4）.
Battery flat, which is disengaged, can cause new problem after hull and aircraft, hull and aircraft run out of steam source, face knock again it is on fire
Battery flat or crash.Solution has two, and first, more than one battery flat is set, with reference to the spy in claim 1
Levy a）, multiple battery flats set respectively, such as three in Fig. 1 independent battery compartment is separately positioned on the left, center, right of hull bottom, and Fig. 5 is set
Head battery flat is put（10）With tail battery flat（11）.Can be safe with selective rhizotomy after which part battery flat is on fire
Battery flat is remained in and powered in main body.Second, connected using extension, during sign of causing danger, battery flat is separated, using prolonging
One section of safe distance of holding between part and hull is stretched, and continues to keep power supply, such as Fig. 3 extension（12）.
Disengaging battery flat can also cause hull or the center of gravity of airplane to significantly alter, and occur in moment, and unstability can be caused at once,
Shipwreck or air crash.And it is exactly position on fire to depart from the position of battery flat, it is impossible to added to and caught fire by personnel and goods
Region, balance airplane and hull center of gravity.Above-mentioned extension connection can also solve unstability problem, just separate and keep extension to connect
Battery flat to aircraft and hull mass centre changing less, but can effectively reduce the temperature of former installation region, people and goods（Aircraft
Aerodynamic load can be adjusted）It can be assigned to here, disengage battery flat after being ready to again.
The method in split cell cabin also has two kinds, for the battery flat that catches fire easily distinguished, such as（10）With（11）, because distance compared with
Far, hot interference will not be produced between two battery flats, temperature-sensing probe and can manually to distinguish easily be anterior battery flat（10）
Or rear battery cabin overtemperature, can use claim 2, selection separation battery flat therein（10）Or（11）.For not
The battery flat that catches fire easily distinguished, such as（3）, 3 battery flats are close to each other or even are close together, and any of which battery flat rises
Fire is easy to deliver heat to other battery flats, temperature-sensing probe and it is artificial be all difficult to accurately distinguish the battery flat that catches fire, at this moment can use
Claim 2 and claim 10, first the separately connection of all batteries cabin and hull, then judges the battery flat that catches fire again.
Example 1：
Cut-off application of the battery flat on lithium ion electric ship.Such as Fig. 1, battery flat can be cut off（3）Installed in lithium ion electric
Ship（1）Bottom, battery flat is divided into three, is separately mounted at the top of the left, center, right of bottom, battery flat and hull bottom contact connects
Connect, battery flat is prepared using non-ignitable hull steel, retain certain distance between battery flat, it is ensured that the battery that catches fire will not be immediately a large amount of
Heat transfer gives adjacent cells cabin, and connector is manufactured using the terne metal of 200 DEG C of fusing point, and each battery flat is also equipped with anchor（9）,
Battery flat is fully immersed in waterline（2）Below.After the temperature of battery flat some connector is more than 150 DEG C, connector it is anti-
Tensile strength drastically declines, and under the Action of Gravity Field of heavy battery flat, connector is pulled off automatically, and battery flat and main body are quickly divided
Open, separated battery flat not only includes the battery flat that catches fire, and also has adjacent to impacted battery flat, and battery flat connector farther out
Temperature is not reaching to 150 DEG C, therefore selection continues to keep contact connection.If connector dissolve after again and hull be bonded in one
Rise, it is impossible to separate, can be taking human as the anchor (9) put down on battery flat, under the powerful drag force effect of anchor, battery flat can be artificial
It is pulled away from hull.Separately extension distance is kept between the battery flat and main body after contact connection, it is ensured that fire safety distance, and pass through
Extension（12）Keep extending between hull and connect, extension is the metallic bond for preparing of tin alloy of 250 DEG C of fusing point, and under water
Cable is in parallel, keeps continuing to power to hull.Separately the battery flat and hull of contact connection are continually maintained in cooling fire extinguishing under water.
For multiple battery flats for leaving hull, the distance between they become big, it is easy to distinguish the battery flat that catches fire, this is to select
The battery flat of safety, withdraws again, keeps contact to be connected on hull.As for the battery flat that catches fire, if the fire extinguishing cooling in water
It to below safe temperature, can also withdraw, or continue to power under extension distance；If the intensity of a fire continues to develop into local extension
The temperature of metallic bond is more than 200 DEG C, and metallic bond intensity is declined to a great extent, and is finally pulled off, and cable is also pulled off, battery flat and hull
Between thoroughly cut off.
Example 2：
Cut-off application of the battery flat on lithium ion electric aircraft, two cut-off battery flats are separately mounted to head（10）With
Tail（11）, battery flat and body contact connection, collectively constitute streamline fuselage covering, battery flat is using fire retardant glass steel
Standby, connector uses electromagnetism iron, and control element is 130 DEG C of temperature controls acted and smoke detectors, and each battery flat is also matched somebody with somebody
Standby rocket ejection transposition.After the temperature of two sensors of battery flat is more than 130 DEG C, electromagnetism connector turn-on reversal electric current,
Battery flat reversely, is ejected from body, if be stuck, can start rocket ejection device after manual confirmation is on fire by electromagnetic force,
Battery flat is ejected body.Separately extension distance is kept between the battery flat and airframe body after contact connection, it is ensured that fire prevention
Safe distance, and kept by extension extending connection between hull, extension passes through hydraulic actuator and machine using steel chain
Body is locked, and extension cable keeps continuing to power to hull.Separately the battery flat and hull of contact connection are continually maintained in aerial spray
Spill fine mist fire-fighting.If fire extinguishing cooling can also be withdrawn to below safe temperature in water, or be continued under extension distance
Power supply；If manual observation to the intensity of a fire continue development may threaten organism safe when, action hydraulic pressure cylinder unblock extension steel
Chain, thoroughly cut-out and the connection of battery flat.
Brief description of the drawings：
Fig. 1 is that the side view of independent battery compartment can be disconnected on hull；
Fig. 2 is that the upward view of independent battery compartment can be disconnected on hull；
Fig. 3 is that independent battery compartment extension connection diagram can be disconnected on hull；
Fig. 4 is that schematic diagram after independent battery compartment is thoroughly cut off can be disconnected on hull；
Fig. 5 is that independent battery compartment schematic diagram can be disconnected on aircraft.
Claims (10)
1. disengaged battery flat completes fire-fighting function by following characteristics：
A) completely and independence, independent battery compartment can be one or more to battery flat；
B) battery flat is connected by connector with body contact, and connector can be separated quickly；
C) battery is under dangerous situation, sends separated instruction, main body quickly separately contacts connection with battery flat, after separating
Distance extends between battery flat and main body, and keeps extension connection by extension, can also withdraw, again contact connection；
d）Separately the battery flat and hull of contact connection perform conventional fire extinguishing program respectively；
e）Battery sends the instruction of thoroughly cut-out connection in the case of being in extreme danger, and main body is completely cut-off with battery flat.
2. a in claim 1）Feature, battery flat is independent closed container, can quickly be separated or the company of cut-out with main body
Connect, for more than one battery flat, selectively can separate or thoroughly cut off one of them or several.
3. a in claim 1）Feature, independent battery compartment is prepared using non-ignitable or fire retardant metallic plate, composite.
4. the b in claim 1）Feature, extension not only can firmly connect battery flat and main body, and can be cut off, can
With using electromagnetism, mechanical connection.
5. the b in claim 1）Feature, extension not only can firmly connect battery flat and main body, can also be interior in extension distance
Continue to provide power supply for main body.
6. the c in claim 1）Feature, the dangerous situation of battery includes overheat, overvoltage, expansion, breakage, leakage, caught fire.
7. the c in claim 1）、e）Feature, sending the mode of instruction includes artificial, automatic, man-auto combined type.
8. the c in claim 1）、e）Feature, battery flat separate and cut-out main body mode include it is artificial, automatic, artificial-from
Dynamic combined type, is separated and cutting action power is from electromagnetic force, blast, ejection, gravity, the pulling force of anchor, acceleration.
9. the d in claim 1）Feature, conventional fire-fighting mode includes watering, blowing, covering, spraying, spraying chemical.
10. the c in claim 1）Feature, keeps the battery flat of extension connection, and extension can also be withdrawn after safety is confirmed,
Contact connection is come back to, is fixed in main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148732.9A CN106976540A (en) | 2017-03-14 | 2017-03-14 | The method and device that independent battery compartment ensures fire safety can be disconnected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148732.9A CN106976540A (en) | 2017-03-14 | 2017-03-14 | The method and device that independent battery compartment ensures fire safety can be disconnected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106976540A true CN106976540A (en) | 2017-07-25 |
Family
ID=59339527
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710148732.9A Pending CN106976540A (en) | 2017-03-14 | 2017-03-14 | The method and device that independent battery compartment ensures fire safety can be disconnected |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786868A (en) * | 2018-12-13 | 2019-05-21 | 北京理工大学 | A kind of processing method, system and the device of electric ship battery system thermal runaway |
| CN111252256A (en) * | 2019-12-31 | 2020-06-09 | 中电科芜湖通用航空产业技术研究院有限公司 | Electric aircraft system based on battery encapsulation |
| CN112295137A (en) * | 2020-10-29 | 2021-02-02 | 义乌君保贸易有限公司 | Auxiliary device for reducing loss of computer room by self-alarming and self-extinguishing fire |
-
2017
- 2017-03-14 CN CN201710148732.9A patent/CN106976540A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786868A (en) * | 2018-12-13 | 2019-05-21 | 北京理工大学 | A kind of processing method, system and the device of electric ship battery system thermal runaway |
| CN109786868B (en) * | 2018-12-13 | 2020-11-06 | 北京理工大学 | Method, system and device for processing thermal runaway of battery system of electric ship |
| CN111252256A (en) * | 2019-12-31 | 2020-06-09 | 中电科芜湖通用航空产业技术研究院有限公司 | Electric aircraft system based on battery encapsulation |
| CN112295137A (en) * | 2020-10-29 | 2021-02-02 | 义乌君保贸易有限公司 | Auxiliary device for reducing loss of computer room by self-alarming and self-extinguishing fire |
| CN112295137B (en) * | 2020-10-29 | 2021-12-10 | 江苏方洋智能科技有限公司 | Auxiliary device for reducing loss of computer room by self-alarming and self-extinguishing fire |
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Application publication date: 20170725 |
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