EP4306178A1 - Fire fighting station for fighting a fire in a vehicle battery and method for extinguishing a fire in a vehicle battery - Google Patents

Abstract

The invention relates to an extinguishing station (100) for fighting fires in a vehicle battery (210), wherein the extinguishing station (100) can be installed in a fixed position on a parking space (300) and has at least one extinguishing device (110) connected to an extinguishing agent reservoir (120), which is at a vehicle (200) arranged on the parking space (300) is arranged under the vehicle (200) and can be moved from a rest position to an extinguishing position, the extinguishing device (110) being designed to provide at least one when moving from the rest position to the extinguishing position to penetrate the wall (201) of the vehicle battery (210) and/or the vehicle (200), and wherein the extinguishing device (110) is designed to transfer extinguishing agent (121) from the extinguishing agent reservoir (120) into the vehicle battery (210) in the extinguishing position. The invention further relates to a method for extinguishing a fire in a vehicle battery (210) of a vehicle (200) arranged at an extinguishing station (100).

Description

Technical area

The invention relates to an extinguishing station for fighting fires in a vehicle battery. The invention further relates to a method for extinguishing a fire in a vehicle battery.

State of the art

As vehicle manufacturers switch from vehicles with combustion engines to vehicles with electric drives, the risks to vehicles, people and the environment have also changed. In high-voltage batteries, in the event of overcharging, a technical defect, manufacturing tolerances, as well as external influences, thermal, chemical and electrical processes can lead to a so-called "thermal runaway", a chain reaction within the battery cells that can hardly be stopped.

The high-voltage batteries, which are usually designed as lithium-ion batteries, are located in the substructure of the vehicle between the front and rear axles, regardless of manufacturer. Since the battery housing is a load-bearing component of the chassis, the base plate and side walls are reinforced by the manufacturer. In addition to the stability of the vehicle, this also serves as active accident protection.

If there is a local short-circuit of the internal electrodes in a lithium-ion battery, for example due to contamination of the separator, an trapped foreign particle or mechanical damage, the short-circuit current can reach the immediate vicinity of the damaged area due to the internal resistance heat to such an extent that the surrounding areas are also affected. This process progresses to thermal runaway and releases energy stored in the accumulator in a short period of time.

However, due to the above-described installation situation of the high-voltage battery and the self-contained battery pack, a fire in the high-voltage battery cannot be stopped using conventional extinguishing devices. The chain reaction that occurs leads to the fire spreading within seconds, so that the vehicle is fully engulfed in flames within a very short time. The heat of the fire causes previously unknown heat radiation. Secondary fires are the result, which means that when the vehicle battery burns, not only the electric vehicle that catches fire burns, but also everything around it that is in the radiation environment of the burning car. Other parked vehicles, garages, hedges, houses, etc. are also ignited, which leads to high insurance losses.

The approaches used to date to stop thermal runaway are similar. Stopping is usually achieved by the cooling effect of extinguishing water. For example, the vehicle is pushed onto a fire tarpaulin, then the fire tarpaulin is folded upwards, then the fire tarpaulin is flooded with water. Treatment also takes place in extinguishing containers. Vehicles are placed in these extinguishing containers and the entire vehicle is then flooded with water. The vehicle battery is thus drowned in water. However, this drowning of the battery is complex and requires large amounts of water.

Attempts have therefore been made to provide adapted fire protection systems and procedures to fight fires and prevent the spread of fire. For example, from the EP 3 613 472 A2 a fire protection system and a method are known. The fire protection system includes a fire protection system with several fire protection units, each fire protection unit comprising at least one sensor and at least one fire protection device. Each fire protection unit can be controlled individually and independently of the other fire protection units based on information from its own sensor. The fire protection units can be, for example, water sprinklers, foam sprinklers, water mist nozzles, Deluge nozzles.

However, the known fire protection systems and methods still have the problem that they often cannot extinguish fires in batteries quickly enough and so a full fire in a vehicle can often no longer be prevented in time.

Presentation of the invention

The invention is therefore based on the object of providing an extinguishing station which eliminates the above-mentioned problems and disadvantages of the prior art. In particular, it is the object of the present invention to provide an extinguishing station that enables quick and safe fire fighting in a vehicle battery. Furthermore, it is an object of the invention to provide a corresponding method for deleting a vehicle battery, which also eliminates the above-mentioned problems and disadvantages of the prior art.

These tasks are solved by the subject matter of the independent claims. Further possible embodiments of the invention are specified in particular in the dependent claims.

The solution according to the invention is, in particular, to provide an extinguishing station for fighting fire in a vehicle battery, the extinguishing station being able to be arranged in a fixed position on a parking space and having at least one extinguishing device connected to an extinguishing agent reservoir, which is arranged under the vehicle in a vehicle arranged on the parking space and from a rest position can be moved into an extinguishing position, wherein the extinguishing device is designed to penetrate at least one wall of the vehicle battery and / or the vehicle when moving from the rest position to the extinguishing position, and wherein the extinguishing device is designed to remove extinguishing agent from the in the extinguishing position Insert an extinguishing agent reservoir into the vehicle battery.

The vehicle is an electric vehicle, preferably a motor vehicle and particularly preferably an electric car. The electric vehicle has the vehicle battery. The vehicle battery is a drive battery vehicle. The vehicle battery is preferably a lithium-ion battery.

A parking space is generally understood to be an area for parking a vehicle. The parking space can be a private parking space with a parking space outside of public traffic areas. The parking space can also be a public parking space that has a publicly accessible area as a parking area. The parking space can be designed without a roof, with a roof or completely enclosed with walls and a roof.

The extinguishing station can be arranged or arranged in a fixed location on the parking space. In other words, the extinguishing station is assigned to the parking space. In particular, the extinguishing station is not assigned to a vehicle. Rather, the extinguishing station can be used by different vehicles that can be arranged on the parking space.

The extinguishing station can be arranged or arranged in a stationary manner on the parking space, preferably attachable or attached, in such a way that the extinguishing station or at least the extinguishing device thereof is arranged so that a vehicle can drive over it. This allows the vehicle to be parked above the extinguishing device. The extinguishing device is located underneath the vehicle in the parking space. In the rest position, the extinguishing device is in a resting state in which the vehicle battery is not extinguished. In the extinguishing position, the extinguishing device is in an extinguishing state in which the vehicle battery is extinguished. After deletion has been completed, the extinguishing device can remain in the extinguishing position.

When moving from the rest position to the extinguishing position, the extinguishing device penetrates at least one wall of the vehicle battery and/or the vehicle. Since the extinguishing device is arranged under the vehicle and the vehicle battery, the extinguishing device penetrates a floor of the vehicle and/or the vehicle battery. In particular, the extinguishing device penetrates all walls that separate the extinguishing device in the rest position from the interior of the vehicle battery. After penetrating the walls, the extinguishing device is at least partially inside the vehicle battery arranged. In this way, the extinguishing device can directly introduce extinguishing agents locally into the vehicle battery.

The movement of the extinguishing device from the rest position to the extinguishing position is effected by an actuator. Accordingly, the extinguishing device can have an actuator which is designed to cause the movement of the extinguishing device from the rest position to the extinguishing position.

The movement of the extinguishing device takes place at least essentially vertically from bottom to top and can take place, for example, as a rotary movement, lifting movement or impact movement. The extinguishing device can have a drive for this purpose. For example, the drive is mechanical, in particular electric, or takes place via an explosive charge.

The distance covered during the movement of the extinguishing device between the extinguishing position and the rest position is preferably adjustable. The depth of penetration of the extinguishing device into the vehicle battery can also be adjusted and adapted to different vehicles.

The advantage of the proposed solution is that the extinguishing device can extinguish the fire directly in the vehicle battery. This means that a quick and locally precise response to a fire can take place. The direct introduction of extinguishing agent into the vehicle battery also offers the advantage that significantly less extinguishing agent has to be used than in the known methods.

Vehicle batteries often catch fire when charging. Since the unloading station is located at a parking space, the critical period of loading can be secured by the unloading station. Since the extinguishing station is assigned to a parking space, it is no longer necessary to install extinguishing equipment on the vehicles themselves. Rather, a parking space equipped with an extinguishing station can be used by several vehicles. This means that extinguishing devices on vehicles or in vehicle batteries can be saved. In addition, the extinguishing station can reduce or prevent the leakage of toxic fluids.

According to an advantageous development of the invention, the extinguishing device has at least one cutting body, in particular a cutting edge, and an extinguishing agent channel.

The cutting body serves to penetrate the walls of the vehicle or the vehicle battery. The extinguishing agent channel is used to introduce extinguishing agent into the vehicle battery. The cutting body or cutting bodies preferably surround the extinguishing agent channel, in particular radially. The extinguishing agent channel can be designed concentrically to a longitudinal axis, in particular rotation axis, of the extinguishing device. The cutting body and the walls forming the extinguishing agent channel are preferably formed in one piece with one another. Alternatively, the walls of the extinguishing agent channel are formed by a base body to which the cutting body is attached. The extinguishing device can have a large number of extinguishing agent channels. A nozzle can be arranged at the end of the extinguishing agent channel. This allows the extinguishing agent to be distributed particularly well.

An advantageous development of the invention provides that the extinguishing device has a sealing device so that the extinguishing agent is held in the extinguished vehicle battery after introduction by means of the extinguishing device.

This can prevent the extinguishing agent from escaping from the vehicle battery. The extinguishing agent is usually contaminated. In addition, thermal decomposition reactions of anions in the electrolyte of the vehicle battery can form hydrofluoric acid.

The sealing device preferably comprises a sealing body, which is particularly preferably arranged behind the cutting body. The indication “behind” refers to the direction of movement of the extinguishing device from the rest position to the extinguishing position. In this way, the cutting body can penetrate the wall and the sealing body arranged behind the cutting body seals the resulting opening. The sealing body preferably comes into contact with the wall.

Alternatively or cumulatively, the sealing device can have threads or check valves in the area of the extinguishing agent channel. This also prevents extinguishing agent from flowing back through the extinguishing agent channel.

In a further advantageous development of the invention, the deletion station has at least one battery condition sensor, in particular a temperature sensor, for detecting physical and/or chemical properties, in particular the temperature, of the vehicle battery and for outputting battery condition sensor data with information about the recorded properties, in particular the recorded temperature. A thermal event, in particular a thermal runaway, can be detected in the battery based on the information.

A thermal event can be quickly detected using the battery condition sensor data. For example, the battery condition sensor regularly records the temperature of the vehicle battery. A temperature delta can be determined by comparing the currently recorded temperature with at least one previously recorded temperature of the same battery condition sensor or a predetermined or predeterminable target temperature. As soon as the temperature delta exceeds a limit value, especially within a predetermined time, thermal runaway is detected. For example, thermal runaway is only detected if the temperature rises from 40°C to 48°C within 3 seconds, i.e. a temperature delta of 8°C occurs within 3 seconds. Since the extinguishing station has battery status sensors, a thermal event can be detected particularly quickly, so that the fire can be fought quickly.

An advantageous development of the invention provides that the extinguishing station has a monitoring control or can be connected to a monitoring control which is designed to detect the presence of a thermal event, in particular a thermal runaway, in particular based on the presence of a predetermined temperature change within a predetermined time. determine and initiate an extinguishing process at the extinguishing station.

To determine the thermal event, the monitoring control can carry out calculations and/or data processing. Independently of this, the monitoring control can be designed to generate and issue a delete command. The actuator of the delete device is designed to receive the delete command and, upon receiving the delete command, to move the associated delete device from the rest position to the delete position. The supervisory control can preferably be designed as a microcontroller, which is particularly preferably part of the extinguishing station. Alternatively, the monitoring control can also be arranged on a server. The monitoring control can also be carried out using a battery management system that is part of the vehicle battery or the vehicle.

In an advantageous development of the invention, the monitoring control for receiving battery status sensor data is connected or can be connected to the battery status sensor. The monitoring control is preferably designed to determine the presence of a thermal event, in particular a thermal runaway, based on the received battery status sensor data.

The monitoring controller carries out calculations and/or data processing of the received battery condition sensor data. For example, a temperature delta is monitored in this way. Based on the presence of a predetermined temperature change within a predetermined time, a thermal event, in particular a thermal runaway, is determined.

According to an advantageous development of the invention, the monitoring control for receiving battery status data can be connected to a battery management system of the vehicle or the vehicle battery. The monitoring control is preferably designed to determine the presence of a thermal event, in particular a thermal runaway, based on the battery status data.

The battery management system is connected, for example, to battery sensors, in particular temperature sensors, arranged in the vehicle battery. The battery status data can thus contain information about the properties recorded by the battery sensors. Alternatively, the battery status data can also directly indicate a thermal event, in particular a thermal runaway. The data processing to determine the thermal event then takes place by the battery management system. This has the advantage that the monitoring control needs to be designed to be less complex.

The monitoring control particularly preferably has a redundant data input. This means that the monitoring controller receives data from at least two different data sources. The data sources can be, for example, different sensors, in particular different battery status sensors. The battery condition sensors can detect the same property or different properties of the battery. For example, one of the battery condition sensors detects the temperature and another battery condition sensor detects a chemical property, for example gas. The battery health sensors can also detect the same characteristic in different ways. For example, the temperature can be recorded, among other things, using components that change their resistance, such as thermistor or PTC thermistor, or using a pyrometer. One of the data sources can also be the battery management system. Redundancy can increase failure, functional and operational reliability.

According to an advantageous development, the extinguishing station also has a conveying device, in particular a conveying pump or a pressure generating device, which is designed to convey extinguishing agent from the extinguishing agent reservoir to the extinguishing device. The conveyor device can be designed to be connected to the monitoring control. The monitoring control can be designed to control the conveyor device, in particular based on the presence of a thermal event.

In an advantageous development of the invention, the extinguishing station has a lifting device which can be moved between a lowered position and a raised position. The extinguishing device is preferably arranged on the lifting device and can be raised together with the lifting device.

An upper region of the lifting device, in particular a lifting plate, is designed to be movable between a lowered position and a raised position.

The lifting device is arranged below a vehicle parked at the extinguishing station. The lifting device is therefore designed to be driven over by the vehicle. Included the lifting device is preferably located at least essentially in the middle of the track below the vehicle. The lifting device can preferably be controlled by an electric motor, hydraulically or pneumatically.

Since the extinguishing device is arranged on the lifting device, the extinguishing device can be brought into a position near the vehicle floor or the wall to be penetrated when the lifting device or the lifting plate is raised. This allows the extinguishing device to be moved more quickly and easily from the rest position to the extinguishing position, since it has to cover a shorter distance.

According to an advantageous development of the invention, the battery condition sensor is arranged on the lifting device and can be raised together with the lifting device.

Since the battery condition sensor is arranged on the lifting device, it can be brought into a position near the vehicle floor when the lifting device is raised. As a result, the battery condition sensor is arranged close to the battery and can record properties of the battery more accurately and quickly. This increases the response speed of the extinguishing station.

In principle, the extinguishing station preferably has a large number of extinguishing devices and battery status sensors. A large number of extinguishing devices and battery status sensors are particularly preferably arranged distributed on the lifting device. Since the extinguishing devices and battery condition sensors are arranged in a distributed manner, in particular on the lifting device, the vehicle battery can be monitored and deleted at several points. At the same time, this makes it easier to protect different vehicle types, since the vehicle battery is arranged in different places on different vehicle types. In principle, at least one battery status sensor can be permanently assigned to each extinguishing device. Then the extinguishing device and the corresponding battery condition sensor are arranged next to each other.

An advantageous development of the invention provides that the lifting device has position sensors for detecting the position of the lifting device relative to the vehicle or the vehicle battery.

This allows the correct position of the lifting device to be checked. For example, the position sensor can have a pressure sensor that detects contact with the vehicle floor. The position sensor is connected to the monitoring control or designed to be connectable. Furthermore, the position sensor is designed to transmit recorded position data to the monitoring controller.

According to an advantageous development of the present invention, at least one delivery line for connecting the extinguishing device to the extinguishing agent reservoir is arranged on an underside of the lifting device.

In a further advantageous development of the invention, the lifting device or at least a part of the lifting device carrying the extinguishing device is designed to be transportable together with the extinguished vehicle.

Particularly in combination with the sealing devices, the advantage here is that contaminated fire water or other toxic substances are prevented from escaping from the vehicle battery when the vehicle is being recovered.

The lifting device or at least the part of the lifting device carrying the extinguishing device can be decoupled from the rest of the extinguishing system, for example via quick-release fasteners. The extinguishing device can, for example, have locking devices which lock into the wall of the vehicle and hold the lifting device or at least the part of the lifting device carrying the extinguishing device on the vehicle.

According to an advantageous development of the invention, the lifting device has a cover to protect the extinguishing device.

According to an advantageous development of the invention, the extinguishing station has a ramp which can be driven on by the vehicle, with preferably two ramp devices and particularly preferably with anti-slip surfaces arranged on the driveable ramp. The extinguishing agent reservoir is preferably arranged in the ramp.

The ramp can preferably be designed as an inclined plane, at least in some areas. Alternatively, the ramp is flat. For example, the first ramp device can be assigned to a left lane of the vehicle and the second ramp device to a right lane of the vehicle. The two ramp devices can in particular be designed to be identical in construction. Regardless of this, an extinguishing agent reservoir is particularly preferably arranged in both ramp devices. The ramp devices are designed as accessible extinguishing agent reservoirs. The extinguishing agent reservoirs each preferably have a volume of at least 120 l, preferably about 150 l.

Furthermore, the ramp preferably has a vehicle sensor for detecting the vehicle and in particular for detecting a relative position of the vehicle in relation to the extinguishing station. The vehicle sensor is preferably connected to the monitoring control or designed to be connectable. Furthermore, the vehicle sensor is designed to transmit recorded data to the monitoring control.

The vehicle sensor can therefore be used to determine whether a vehicle is on the ramp and preferably what the position of the vehicle is relative to the extinguishing station. In a simple embodiment of the vehicle, it can be a pressure sensor that can be actuated, for example, by a tire of the vehicle.

An advantageous development of the invention provides that the lifting device is arranged between the two ramp devices.

The two ramp devices are assigned to the lanes of the vehicle, so that there is sufficient space between the ramp devices for the lifting device. In addition, the lifting device is also arranged in the center of the vehicle's lane.

According to an advantageous development, the extinguishing agent arranged in the extinguishing agent reservoir is water, preferably osmosis water or distilled water.

In a further advantageous development of the invention, the extinguishing station has, in addition to the extinguishing agent reservoir, an extinguishing agent additive container in which an extinguishing agent additive is arranged or can be arranged.

The extinguishing agent additive preferably has amphiphilic molecules. Since these molecules are hydrophilic and lipophilic at the same time, they can coat hydrocarbons so that they are no longer flammable. For example, the extinguishing agent additive is an encapsulator agent that is designed to envelop hydrocarbons. In particular, the extinguishing agent additive can be F-500.

According to an advantageous development of the invention, the extinguishing station has an uninterruptible power supply, in particular a battery-supported uninterruptible power supply. The uninterruptible power supply has an energy storage device to bridge disruptions in the power supply.

Furthermore, the task is solved by means of a method for extinguishing a fire in a vehicle battery of a vehicle arranged at an extinguishing station. The method has the following steps: detecting a thermal event, in particular a thermal runaway, in the vehicle battery; Moving at least one extinguishing device of the extinguishing station from a rest position below the vehicle to an extinguishing position within the vehicle battery, wherein when moving from the rest position to the extinguishing position at least one wall of the vehicle battery and / or the vehicle is penetrated by the extinguishing device, introducing extinguishing agent into the Vehicle battery using the extinguishing device.

The extinguishing station used in the method is preferably one of the extinguishing stations already described. Therefore, all individual aspects and advantages of the individual extinguishing stations can be transferred here.

A preferred use of the previously described extinguishing stations and the extinguishing procedure are underground car parks, private garages or parking lots. A fire is often caused by overcharging the vehicle battery at a charging station, especially a fast charging station. By quickly extinguishing the resulting fire in the vehicle battery, the fire can be prevented from spreading to the surrounding area, for example the garage. Another preferred use of the extinguishing station is when securing vehicles after an accident. This is usually the case so far A safety distance of 7-15 meters is required between seized vehicles. This can be reduced so that less area is required to secure the vehicles. In addition, extinguishing containers and the like are no longer necessary.

Furthermore, the invention also relates to a system consisting of one of the extinguishing stations described above and a parking space. In this case, the invention relates to an extinguishing system with an extinguishing station for fighting fire in a vehicle battery and with a parking space to which the extinguishing station can be fixed or is attached, the extinguishing station having at least one extinguishing device connected to an extinguishing agent reservoir, which is arranged on the parking space Vehicle is arranged under the vehicle and is movable from a rest position to an extinguishing position, wherein the extinguishing device is designed to penetrate at least one wall of the vehicle battery and / or the vehicle when moving from the rest position to the extinguishing position, and wherein the extinguishing device is designed to do this is to introduce extinguishing agent from the extinguishing agent reservoir into the vehicle battery in the extinguishing position.

All aspects described regarding the extinguishing station also apply to the extinguishing station of the extinguishing system. Likewise, all aspects discussed regarding the parking space can be transferred to the parking space of the extinguishing system and will not be repeated here.

Brief description of the drawings

The different and exemplary features described above can be combined with one another according to the invention to the extent that this makes technical sense and is suitable. Further features, advantages and embodiments of the invention result from the following description of exemplary embodiments and the figures.

Fig. 1

eine schematische Darstellung einer erfindungsgemäßen Löschstation mit einem Fahrzeug;

Fig. 2

eine perspektivische schematische Darstellung der in Fig. 1 gezeigten erfindungsgemäßen Löschstation;

Fig. 3

eine vergrößerte perspektivische Darstellung einer Hebeeinrichtung der erfindungsgemäßen Löschstation;

Fig. 4

eine vergrößerte perspektivische Darstellung einer Löscheinrichtung und eines Batteriezustands-Sensors der Löschstation;

Fig. 5

eine schematische Darstellung der Löschstation von oben;

Fig. 6

eine schematische Darstellung der Löschstation von schräg unten; und

Fig. 7

eine vereinfachte Funktionsdarstellung der Überwachungssteuerung.

The drawings used to explain the exemplary embodiment show:

Fig. 1

a schematic representation of an extinguishing station according to the invention with a vehicle;

Fig. 2

a perspective schematic representation of the in Fig. 1 extinguishing station according to the invention shown;

Fig. 3

an enlarged perspective view of a lifting device of the extinguishing station according to the invention;

Fig. 4

an enlarged perspective view of an extinguishing device and a battery condition sensor of the extinguishing station;

Fig. 5

a schematic representation of the extinguishing station from above;

Fig. 6

a schematic representation of the extinguishing station diagonally from below; and

Fig. 7

a simplified functional representation of the monitoring control.

Ways of carrying out the invention

Fig. 1 shows a schematic representation of an extinguishing station 100 according to the invention with a vehicle 200.

The vehicle 200 is shown very schematically and has a front wheel 220 and a rear wheel 230. Furthermore, the vehicle 200 has a vehicle battery 210. The vehicle battery 210 is separated from the environment by a wall 201. The wall 201 can be a wall 201 of the vehicle 200 and/or a wall 201 of the vehicle battery 210.

The extinguishing station 100 is arranged below the vehicle 200.

The Fig. 2 shows a clearer representation of the in Fig. 1 extinguishing station 100 shown.

The extinguishing station 100 has a ramp 160 with two ramp devices 161. Like in the Fig. 1 To recognize, the ramp devices 161 are designed to be driven on by the vehicle 200. For this purpose, a front part of the ramp device 161 is designed as an inclined plane. The two ramp devices 161 are constructed identically, with a ramp device 161 being assigned to a lane of the vehicle 200.

Even if this is in Fig. 2 cannot be clearly seen, an extinguishing agent reservoir 120 is arranged in each of the ramp devices 161. The ramp devices 161 are therefore designed as accessible extinguishing agent reservoirs 120. Several extinguishing devices 110 are arranged between the two ramp devices 161. In this example, four extinguishing devices 110 are arranged on a lifting device 150. Alternatively, the extinguishing devices 110 could also be designed without a lifting device 150. In addition, four battery condition sensors 130 are arranged on the lifting device 150 as an example. The battery condition sensors 130 can also be designed without a lifting device 150. Then the extinguishing devices 110 and battery condition sensors 130 are arranged, for example, on a common base that is not designed to be liftable.

The extinguishing devices 110 and the battery condition sensors 130 are distributed on the lifting device 150 and thus cover the surface of the lifting device 150.

The extinguishing devices 110 are designed to be movable from a rest position to an extinguishing position. Only the rest position of the extinguishing device 110 is shown in the figures. The extinguishing devices 110 are moved upwards from the rest position to the extinguishing position. The extinguishing devices 110 come into contact with the wall 201 and penetrate the wall 201 in order to have access to the interior of the vehicle battery 210. In the extinguishing position, the extinguishing device 110 introduces extinguishing agent from the extinguishing agent reservoir 120 into the vehicle battery 210. For this purpose, the extinguishing devices 110 are connected to the extinguishing agent reservoir 120 via delivery lines 153. This aspect is clearer in Fig. 3 to recognize.

Fig. 3 shows an enlarged perspective view of the lifting device 150 of the extinguishing station 100. The extinguishing devices 110 and battery condition sensors 130 are arranged on the lifting device 150. In this example, the lifting device 150 has a lifting plate 150a on which the extinguishing devices 110 and battery condition sensors 130 are arranged. The lifting plate 150a is the part of the lifting device 150 that is designed to be raised and lowered. For this purpose, the lifting device 150 has a drive, not shown, which is preferably electric or hydraulic. The lifting plate 150a is connected to a base part 154 via a scissor joint 155. The lifting plate 150a can be raised and lowered relative to the base part 154. The lifting plate 150a can thus be brought close to the vehicle battery 210 or the wall 201 when the vehicle 200 is parked.

Since the battery condition sensors 130 and the eraser 110, as in Fig. 3 shown, are arranged on the lifting plate 150a, they can be brought into the vicinity of the vehicle battery 210 by means of the lifting device 150.

Furthermore, the lifting device 150 has a position sensor 151. The position sensor 151 is used to detect the position of the lifting device 150 relative to the vehicle 200 or the vehicle battery 210. For example, the position sensor 151 can have a pressure sensor that detects contact with the vehicle floor or the wall 201.

Like in the Fig. 3 can be seen, the lifting device 150 or the lifting plate 150a has a part 152 carrying the extinguishing device 110. The part 152 carrying the extinguishing device 110 can be detached from the rest of the lifting device 150 and then transported away together with the extinguished vehicle 200. The quick-release fasteners that can be released for this are not shown in detail.

The Fig. 4 shows an enlarged perspective view of an extinguishing device 110 and a battery condition sensor 130 of the extinguishing station 100. The extinguishing device 110 has a cutting body 111, which serves to penetrate the wall 201 of the vehicle 200 or the vehicle battery 210. Furthermore, the extinguishing device 110 has an extinguishing agent channel 112, which serves to introduce extinguishing agent 121 into the vehicle battery 210. The cutting body 111 surrounds the extinguishing agent channel 112. A sealing device 113 is indicated below the cutting body 111. The sealing device 113 ensures that the extinguishing agent 121 is held in the erased vehicle battery 210 after introduction by means of the extinguishing device 110. The extinguishing device 110 is, for example, from the rest position on the lifting plate 150a relative to the lifting plate 150a can be moved upwards into the extinguishing position. The drive used for this is not shown.

Fig. 5 shows the extinguishing station 100 from above. Parking space 300 is particularly visible here. Parking space 300 can be a private parking space or a public parking space. The extinguishing station 100 is stationary on the parking space 300. In particular, the extinguishing station 100 is arranged centrally on the parking space 300. Parts of the extinguishing station 100 can be anchored or attached to the surface of the parking space 300. For example, the ramp 160 is attached to the parking space 300 with its two ramp devices 161. Furthermore, for example, the extinguishing devices 110 or the lifting device 150 are attached to the parking space 300. The extinguishing station 100 is arranged so that the vehicle 200 can drive over it when the vehicle 200 is parked on the parking space 300. More precisely, the extinguishing device 110 can be driven over by the vehicle 200, with the vehicle 200 driving onto the ramp 160. The ramp 160 has vehicle sensors 162. The vehicle sensors 162 are used to detect the vehicle 200 and, if necessary, to detect a relative position of the vehicle 200 with respect to the extinguishing station 100. The vehicle sensor 162 is here, for example, arranged on a front area of the ramp device 161 and is driven by the front wheel 220 of the Vehicle 200 activated.

Fig. 6 shows the extinguishing station 100 from diagonally below. Here you can clearly see the scissor joint 155, which connects the base part 154 to the lifting plate 150a. It can also be seen that several delivery lines 153 are arranged below the lifting plate 150a. The delivery lines 153 supply the extinguishing devices 110 with extinguishing agent 121. The extinguishing agent 121 is arranged in the extinguishing agent reservoirs 120, which are located in the ramp devices 161. This is indicated in one of the ramp devices 161. The second ramp device 161 can also preferably have a corresponding extinguishing agent reservoir 120. Furthermore, an extinguishing agent additive container 122 with extinguishing agent additive 123 is arranged. This one is in Fig. 6 only indicated schematically.

Fig. 7 shows a simplified functional representation of a monitoring control 140 of the extinguishing station 100.

The at least one battery condition sensor 130 serves, for example, to detect the temperature of the vehicle battery 210 and to output battery condition sensor data with information about the detected temperature.

The monitoring controller 140 is connected to the battery condition sensor 130 to receive the battery condition sensor data. Furthermore, the monitoring controller 140 is designed to determine the presence of a thermal event, in particular a thermal runaway, based on the received battery state sensor data. Here, the monitoring controller 140 carries out calculations and/or data processing of the received battery condition sensor data. For example, a comparison of the currently recorded temperature with at least one previously recorded temperature of the battery condition sensor 130 takes place. As soon as the resulting temperature delta exceeds a limit value, in particular in a predetermined or predeterminable time, a thermal event, in particular thermal runaway, is detected.

The monitoring controller 140 is as in Fig. 7 indicated by a dashed line, can also be connected to a battery management system 211. A thermal event can also be determined based on battery status data from the battery management system 211.

The monitoring control 140 is also connected to at least the extinguishing devices 110. For example, the monitoring controller 140 generates a delete command and issues it to the delete devices 110. In particular, the erasing devices 110 have at least one actuator which, upon receiving the erasing command, moves the associated erasing device 110 from the rest position to the erasing position.

It is understood that in the present invention there is a connection between, on the one hand, features that were described in connection with method steps and, on the other hand, features that were described in connection with corresponding devices. The method features described are therefore also to be viewed as device features belonging to the invention - and vice versa - even if this was not explicitly mentioned.

It should be noted that the features of the invention described with reference to individual embodiments or variants, such as the type and design of the individual components as well as their exact dimensions and spatial arrangement, can also be present in other embodiments, unless otherwise stated or is automatically prohibited for technical reasons. Of such features of individual embodiments described in combination, not all of the features necessarily have to be implemented in a relevant embodiment.

Claims (15)

Extinguishing station (100) for fighting fires in a vehicle battery (210), wherein the extinguishing station (100) can be installed in a fixed position on a parking space (300) and has at least one extinguishing device (110) connected to an extinguishing agent reservoir (120), which is located on the parking space (300) arranged vehicle (200) is arranged under the vehicle (200) and can be moved from a rest position to an extinguishing position, the extinguishing device (110) being designed to move at least one wall (201) when moving from the rest position to the extinguishing position. to penetrate the vehicle battery (210) and/or the vehicle (200), and wherein the extinguishing device (110) is designed to introduce extinguishing agent (121) from the extinguishing agent reservoir (120) into the vehicle battery (210) in the extinguishing position. Extinguishing station (100) according to claim 1, wherein the extinguishing device (110) has at least one cutting body (111), in particular a cutting edge, and an extinguishing agent channel (112). Extinguishing station (100) according to claim 1 or 2, wherein the extinguishing device (110) has a sealing device (113) so that the extinguishing agent (121) is held in the erased vehicle battery (210) after introduction by means of the extinguishing device (110). Deletion station (100) according to one of the preceding claims, wherein the deletion station (100) has at least one battery condition sensor (130), in particular a temperature sensor, for detecting physical and/or chemical properties of the vehicle battery (210) and for outputting battery condition sensor data Has information about the properties recorded, based on this of the information, a thermal event, in particular a thermal runaway, can be detected in the vehicle battery (210). Extinguishing station (100) according to one of the preceding claims, wherein the extinguishing station (100) has a monitoring control (140) or can be connected to a monitoring control (140) which is designed to determine the presence of a thermal event, in particular a thermal runaway, and to initiate an extinguishing process of the extinguishing station (100). Deletion station (100) according to claims 4 and 5, wherein the monitoring controller (140) is connected or connectable to the battery condition sensor (130) for receiving battery condition sensor data and wherein the monitoring controller (140) is designed to do so based on the received battery condition -Sensor data to determine the presence of a thermal event, in particular thermal runaway. Deletion station (100) according to claim 5 or 6, wherein the monitoring controller (140) is connectable to a battery management system (150) of the vehicle (200) for receiving battery status data and wherein the monitoring controller (140) is designed to do so based on the battery status -Data to determine the presence of a thermal event, in particular thermal runaway. Extinguishing station (100) according to one of the preceding claims, wherein the extinguishing station (100) has a lifting device (150) which is movable between a lowered position and a raised position, the extinguishing device (110) being arranged on the lifting device (150). and can be raised together with the lifting device (150). Deletion station (100) according to claim 8 in combination with claim 4, wherein the battery condition sensor (130) is arranged on the lifting device (150) and can be raised together with the lifting device (150). Deletion station (100) according to claim 8 or 9, wherein the lifting device (150) has position sensors (151) for detecting the position of the lifting device (150) relative to the vehicle (200) or the vehicle battery (210). Extinguishing station (100) according to one of claims 8 to 10, wherein the lifting device (150) or at least a part (152) of the lifting device (150) carrying the extinguishing device (110) can be transported away together with the extinguished vehicle (200). Extinguishing station (100) according to one of the preceding claims, wherein the extinguishing station (100) has a ramp (160) which can be traveled by the vehicle (200) and has two ramp devices (161), the extinguishing agent reservoir (120) being arranged in the ramp (160). . Unloading station (100) according to claim 12 in combination with claim 8, wherein the lifting device (150) is arranged between the two ramp devices (161). Extinguishing station (100) according to one of the preceding claims, wherein the extinguishing station (100) has, in addition to the extinguishing agent reservoir (120), an extinguishing agent additive container (122) in which an extinguishing agent additive (123) is arranged or can be arranged. Method for extinguishing a fire in a vehicle battery (210) of a vehicle (200) arranged at an extinguishing station (100), the method having the following steps: Detecting a thermal event, in particular a thermal runaway, in the vehicle battery (210); Moving at least one extinguishing device (110) of the extinguishing station (100) from a rest position below the vehicle (200) into an extinguishing position within the vehicle battery (210), wherein when moving from the rest position to the extinguishing position, at least one wall (201) of the vehicle battery (210) and/or the vehicle (200) is penetrated by the extinguishing device (100), Introducing extinguishing agent (121) into the vehicle battery (210) using the extinguishing device (110).

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