EP4279148A1 - Système d'extinction pour véhicules, en particulier pour véhicules électriques, et procédé pour son utilisation - Google Patents

Système d'extinction pour véhicules, en particulier pour véhicules électriques, et procédé pour son utilisation Download PDF

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Publication number
EP4279148A1
EP4279148A1 EP23020222.8A EP23020222A EP4279148A1 EP 4279148 A1 EP4279148 A1 EP 4279148A1 EP 23020222 A EP23020222 A EP 23020222A EP 4279148 A1 EP4279148 A1 EP 4279148A1
Authority
EP
European Patent Office
Prior art keywords
hood
extinguishing
vehicle
lifting
fire
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.)
Pending
Application number
EP23020222.8A
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German (de)
English (en)
Inventor
Markus Kohten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gelkoh GmbH
Original Assignee
Gelkoh GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gelkoh GmbH filed Critical Gelkoh GmbH
Publication of EP4279148A1 publication Critical patent/EP4279148A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

Definitions

  • the invention relates to an extinguishing system for vehicles which, due to their electric motor drive, have one or more accumulators which can catch fire in accidents and, due to the lithium-ion batteries (LIAs) usually installed, require different extinguishing methods than those used in vehicles equipped exclusively with internal combustion engines are used.
  • LIAs lithium-ion batteries
  • extinguishing with water serves, in addition to immediate extinguishing, primarily for cooling and must be carried out for a correspondingly long time.
  • a special discontinuous water jet is required to reduce the risk of electricity being directed back to the emergency services via the extinguishing jet. If the cooling decreases and a certain temperature value is exceeded again, this often leads to a flare-up.
  • a container for recovering damaged vehicles and a method for recovering a damaged vehicle are disclosed.
  • a cable winch is arranged in the container, with the help of which the vehicle to be rescued can be pulled into the container-like container that was previously placed at the scene of the accident, which is subsequently closed and flooded with extinguishing agent.
  • the disadvantage here is that the winch has to be attached to the damaged, possibly still burning vehicle, which poses a corresponding risk to the emergency services.
  • the effort is similar to that of providing containers that have already been flooded with water.
  • the disclosure document DE 10 2020 000 211 A1 discloses the principle of extinguishing the damaged vehicle by lifting the hood from above is placed over the burning vehicle.
  • the edges of the hood are equipped with sealing lips made of rubber or similar to compensate for uneven floors and to create a space with as little oxygen as possible for the vehicle, which is then extinguished mainly by suffocating the fire, but which is supported by the addition of additional extinguishing agents via quick couplings on the hood can.
  • hood made of fire blankets which are brought into a suitable hood shape using gas pressure, for example, and can also be used to extinguish fires by putting the hood created in this way over the damaged vehicle.
  • hoods lack a base and therefore the vehicles positioned underneath them can only be removed once the fire has been completely brought under control.
  • electric vehicles however, a flare-up is possible at any time if the cooling decreases.
  • the use of fire hoods often means a long-term road closure, which is particularly problematic on motorways.
  • the task is therefore to further develop the known fire hoods in such a way that the fire hood and the damaged vehicle can be quickly removed from the scene of the accident and the need for immediate contact between the emergency services and the damaged or burning vehicle, such as when attaching a winch or Similar things can be avoided.
  • an extinguishing system for a damaged vehicle in particular for a vehicle with accumulators for its electric motor drive, which has an extinguishing hood with a downward-pointing opening and a base plate provided for closing the opening for depositing the vehicle, each of which has fastening means over which they can be releasably connected to form a fireproof container, with the extinguishing hood having fixing means for the vehicle that can be operated from the outside and are arranged on the inside. Lifting loops with ends pointing outwards can be used as fixation means.
  • the fire hood has lifting loops on the inside for lifting the vehicle, the ends of which are guided outwards through the fire hood, and locking means for locking the lifting loops that can be released from outside the fire hood.
  • Lifting loops here include both loops that cannot be pulled together and loops that can be pulled together.
  • a flexible version of the lifting loops is available For example, steel cables that are designed to have sufficient load-bearing capacity for lifting the vehicle. It is also possible to make the lifting loops rigid, for example as U-shaped frame parts, at the free ends of which steel pull cables are attached, which, like the aforementioned flexible variant of the lifting loops, are preferably led upwards out of the fire hood.
  • steel rods When integrating rigid components into the lifting loops, steel rods can be used, for example, at the ends of which steel pull ropes are attached, similar to the U-shaped frame parts.
  • the locking means can, for example, be locking connections, in particular clip connections, into which the steel cables of the lifting loops or rigid components of the lifting loops can be clipped so that they can be released from the clip connection by pulling on the ends of the loops located outside the fire hood.
  • Hooks are also possible as locking means, which are arranged, for example, on a rotatable rod which is guided outwards through the extinguishing hood, and through the rotation of which the hooks can release the lifting loops they hold.
  • the ends of the loops are preferably combined into a strand and guided outwards as a strand through the extinguishing hood.
  • This has the advantage that the extinguishing hood only requires one passage for the strand, which preferably has sealing means applied to the strand in order to achieve the best possible isolation of the source of the fire from the outside air.
  • the fixing means instead of or in addition to designing the fixing means as lifting loops, it is also possible to design the fixing means as movable claws, grippers or lifting angles. The movement of the claws, grippers or lifting angles can be achieved using articulated chains made of scissor levers that can be operated from the outside and are designed as stretching scissors.
  • the operability from the outside can be implemented using externally guided threaded rods or spindles, which can be operated, for example, using actuator rods that ensure a sufficient distance between the emergency services and the fire hood.
  • the operation of the fixing means, which the specialist can also use in other suitable variants at his disposal, can be carried out purely mechanically or with electric motor support.
  • a one-part or multi-part sealing element is arranged all around the opening of the extinguishing hood to compensate for uneven floors.
  • a sealing element can, for example, be designed as a textile apron made of fireproof material.
  • Such an apron can cover the fastening means of the base plate and the extinguishing hood, but due to its flexibility it can be folded up completely or partially to actuate the fastening means and can preferably also be fixed to the outside of the extinguishing hood, for example by means of Velcro.
  • the sealing element it is also possible for the sealing element to be designed as a sealing lip, but this does not have the same scope should be larger than that of the extinguishing hood in order not to make it more difficult to operate the fasteners.
  • the extinguishing system enables a method according to claim 15, whereby no explicit distinction is made as to whether lifting loops or claws, grippers or lifting angles, other types of fixing means or a combination of these are used as fixing means.
  • the gripping sections of the lifting loops which in the working state of the extinguishing system extend to the opening of the extinguishing hood and thus at least partially to the ground around the vehicle, are rigid or stiffened. In this way, it can be avoided that the tension exerted on the ends of the lifting loops causes deformation of the slack lifting loops, which would make it more difficult or impossible to grasp the damaged vehicle and to be lifted.
  • the gripping sections are preferably wider than the vehicle to be rescued, so that when tension is exerted on the ends of the lifting loops upwards and towards the center of the fire hood, i.e.
  • the gripping sections are initially above the ground be brought up to the vehicle, grasp the wheels and tires of the vehicle at the front and rear, get caught in the respective wheel arches in order to raise the vehicle as the pull continues.
  • the gripping sections can be rigid, i.e. directly stiffened, but they can also be indirectly stiffened, for example in that the flexible lifting loops on the gripping sections are guided through a tightly fitting tube.
  • a gripping section can grip two wheels connected via an axle or the associated wheel arches.
  • the extinguishing hood preferably has at least one textile area that is impermeable to flying sparks and is more stretchy than the remaining, preferably rigid extinguishing hood.
  • the textile area advantageously has fireproof fleece material, which is almost impermeable to air at normal ambient air pressure and ensures the successful suffocation of a source of fire.
  • this due to the increased stretchability and increased gas permeability of the textile material under increased pressure, this has a pressure-relieving effect in the event of an explosion of the damaged vehicle.
  • An additional, upstream pressure relief is achieved in a preferred embodiment of the fire hood, in which the material that forms the textile area of the fire hood is folded and fixed in the folded form, for example by means of a thread, which in the event of an explosion in the fire hood gives way first and thus absorbs the pressure of the explosion in a first stage before the material begins to stretch. It is also advantageous for the safety of the emergency services if the textile area at least partially absorbs hydrogen fluoride gases, which are problematic in LIA fires.
  • extinguishing system have an extinguishing hood with an extinguishing agent dispenser that can be connected to an extinguishing agent reservoir.
  • sprinkler or misting systems integrated into the fire hood or arranged on the outside of the fire hood are also advantageous. In the case of an outward-facing fogging system, this serves to bind smoke gases that escape to the outside, for example to protect passers-by in residential areas.
  • the base plate has a liquid-tight collecting tray, preferably made of steel.
  • the base plate preferably has a ground connection.
  • An embodiment of the extinguishing system which enables simple and effective handling, has lifting loops, the ends of which are designed as pull ropes, which are centrally connected to one another to form a strand and as a strand through a passage at the highest or one of the highest points of the extinguishing hood, if possible above the The middle of the base area of the fire hood is led outwards and forms a lifting eye there.
  • the strand can advantageously be fixed to the passage from the outside in the initial state of the extinguishing system, for example with a conical union nut, the tightening of which is arranged on the outside of the passage and is equipped with upward-pointing press tabs Thread through which the strand is guided leads to a fixing frictional connection between the strand and the press tabs.
  • the thread and the union nut are advantageously designed in such a way that the fixation is fixed or, in the opposite direction, the fixation is released after just a quarter turn.
  • the gripping sections lie on the ground. If tension is now exerted on the strand again, the gripping sections of the lifting loops move in the desired direction, namely upwards and towards the center of the fire hood, and can thus grasp the vehicle.
  • the stopper arranged on the strand in the extinguishing hood which is, for example, dimensioned so that it does not fit through the passage, now prevents the vehicle from hitting the roof of the extinguishing hood. When the stopper comes into contact with the passage, further tension causes the extinguishing hood to be raised along with the vehicle and can be placed on the base plate.
  • the extinguishing hood (2) shown in longitudinal section is shaped like a cuboid without a bottom, and therefore has a top-side roof panel, two opposite side walls, each arranged on one of the broad sides, and two opposite end walls, each arranged on one of the end faces.
  • the point at which the diagonals of the roof slab intersect is centrally located in a circular passage in the roof slab.
  • the lifting loops (7) are shown here on the one hand by a solid line and on the other hand by a dashed line that lies outside the cutting plane.
  • the gripping sections (13) merge into flexible wire ropes, the ends (8), two of each lifting loop (7), are guided upwards and twisted below the passage to form a single strand (17) and fixed by means of a screw clamp, the circumference of which is larger than that of the passage and thus acts as a stopper (18), by means of which a specific lifting distance for the vehicle (F) can be predefined.
  • a thread with upward-pointing press tabs is arranged on the edge of the passage (not shown).
  • a cup-shaped component that tapers conically upwards is arranged on the section of the strand (17) that runs outside the extinguishing hood (2), the cup opening being designed as a union nut that fits the thread on the passage (not shown).
  • the strand (17) is guided through the bottom of the cup and is frictionally fixed to the cup-shaped component by three circumferentially arranged screws, which are guided through the cup wall with their bolts, and opens into a crane eyelet above the cup-shaped component.
  • the thread and union nut are designed in such a way that the press tabs are frictionally connected to the strand (17) after just a quarter turn and block movement of the strand (17) through the passage.
  • the cup-shaped component preferably additionally has two flanges arranged orthogonally to the strand (17), which have eyelets at their free ends, into which long hooks can be intervened from a safe distance in order to, if necessary, turn the cup-shaped component even without a motor-rotatable crane hook to be able to bring about.
  • the slack sections of the lifting loops (7) each have a length from the transition to the stiffened gripping section (13) to the passage, which corresponds to more than the distance from the edge of the respective end wall at the downward-pointing opening (3) of the extinguishing hood (2) to the passage.
  • the locking means (10) designed as clip holders on the inside of the end walls are arranged approximately 0.1 m above the opening (3) of the fire hood (2).
  • the locks (10) are designed as hooks instead of as clip holders, into which the stiffened gripping sections (13) are placed.
  • the hooks are each arranged on a rotatable, outwardly guided rod and can be brought into a position by rotating the rod in which the gripping sections (13) fall out of the hooks.
  • the side walls of the fire hood (2) each have a window-like textile area ( Fig. 3 , No. 14) , which is closed by thick-walled fleece material incorporating material that absorbs hydrogen fluoride gases.
  • the fire hood (2) has a nebulization system with an extinguishing agent dispenser (15) for water and a water reservoir (not shown), which serves to bind smoke gases emerging from the fire hood (2).
  • an approximately 0.3 m wide sealing element (12) which is designed as a textile band and is divided into several sections, is arranged around the outside using Velcro fasteners.
  • the circumferential sealing element (12) designed as a textile band, hangs over the edge of the opening (3) of the fire hood (2) and in this way seals uneven ground when the fire hood (2) is placed over the damaged vehicle (F).
  • the extinguishing hood (2) has fastening means (5) designed as quick-release fasteners for connection to the base plate (4), which has a liquid-tight steel collecting tray (not shown) that extends over the entire surface of the base plate (4). on its upper side.
  • the base plate (4) has an earth connection (not shown) on the collecting pan.
  • the sections of the circumferential sealing element (12), which is designed as a textile band, can be folded up and in turn attached to it initially using Velcro connections bottom edge on the outside of the extinguishing hood (2).
  • the fastening means (5) which are designed as quick-release fasteners, are freely accessible at the lower edge of the extinguishing hood (2) and can be securely connected to the base plate (4).
  • the damaged vehicle (F) has already been safely recovered and can preferably be moved to a safe place or to the loading area of a transport vehicle using a crane.
  • Fig. 2 shows the base plate (4) in longitudinal section with the fasteners (5).
  • Fig. 3 shows the extinguishing hood (2) in cross section with the textile area (14), which serves to relieve pressure in the event of deflagrations, absorbs hydrogen fluoride gases, and with the fixing means (6), which are used here in addition to those in Fig. 1
  • the lifting loops (7) shown are designed as claws (9), which, in contrast to the lifting loops (7) located on the front sides of the fire hood (2) in the initial state (A), are positioned on the broad sides of the fire hood (2) and by means of a scissor mechanism can be moved, which comprises articulated chains made of scissor levers (11) designed as stretching scissors.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Superstructure Of Vehicle (AREA)
EP23020222.8A 2022-05-18 2023-05-12 Système d'extinction pour véhicules, en particulier pour véhicules électriques, et procédé pour son utilisation Pending EP4279148A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202022001200.4U DE202022001200U1 (de) 2022-05-18 2022-05-18 Löschsystem für Fahrzeuge, insbesondere E-Fahrzeuge

Publications (1)

Publication Number Publication Date
EP4279148A1 true EP4279148A1 (fr) 2023-11-22

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Application Number Title Priority Date Filing Date
EP23020222.8A Pending EP4279148A1 (fr) 2022-05-18 2023-05-12 Système d'extinction pour véhicules, en particulier pour véhicules électriques, et procédé pour son utilisation

Country Status (2)

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EP (1) EP4279148A1 (fr)
DE (1) DE202022001200U1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056637A1 (de) 2009-12-02 2011-06-09 Oskar Dr. Bschorr Löschdecken für Kfz-Brände
DE102016211854B3 (de) 2016-06-30 2017-08-24 Ellermann Eurocon GmbH Behälter zum Bergen havarierter Fahrzeuge und Verfahren zum Bergen eines havarierten Fahrzeugs
DE102019003289A1 (de) * 2019-05-09 2020-01-02 Daimler Ag Löschvorrichtung zum Löschen eines Kraftwagenbrandes
WO2020104548A1 (fr) * 2018-11-21 2020-05-28 Rainer Dagn Dispositif de protection contre l'incendie avec étui de sécurité pour véhicules
DE102019125510A1 (de) * 2019-09-17 2021-03-18 Vetter Gmbh Verfahren und Vorrichtung zum Abtransport und zur Passivierung havarierter Kraftfahrzeuge
DE102020000211A1 (de) 2020-01-15 2021-07-15 Zülfikar Celik Löschcontainer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056637A1 (de) 2009-12-02 2011-06-09 Oskar Dr. Bschorr Löschdecken für Kfz-Brände
DE102016211854B3 (de) 2016-06-30 2017-08-24 Ellermann Eurocon GmbH Behälter zum Bergen havarierter Fahrzeuge und Verfahren zum Bergen eines havarierten Fahrzeugs
WO2020104548A1 (fr) * 2018-11-21 2020-05-28 Rainer Dagn Dispositif de protection contre l'incendie avec étui de sécurité pour véhicules
DE102019003289A1 (de) * 2019-05-09 2020-01-02 Daimler Ag Löschvorrichtung zum Löschen eines Kraftwagenbrandes
DE102019125510A1 (de) * 2019-09-17 2021-03-18 Vetter Gmbh Verfahren und Vorrichtung zum Abtransport und zur Passivierung havarierter Kraftfahrzeuge
DE102020000211A1 (de) 2020-01-15 2021-07-15 Zülfikar Celik Löschcontainer

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Publication number Publication date
DE202022001200U1 (de) 2022-05-25

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