Use of a fire extinguishing lance template for an electrically powered vehicle, method comprising the use of a fire extinguishing lance template and an emergency kit for such a vehicle

Abstract

Use of a fire extinguishing lance template (37) for an electrically powered vehicle, which in the event of a failure can be positioned correctly on the floor covering (41) of the electric vehicle in order to enable position detection of the fire extinguishing lance access point (31) located below the floor covering (41), wherein the electrically powered vehicle is provided with a mounting space (13) for a traction battery (15) open in the vehicle's vertical direction (z) towards the bottom of the vehicle, which is bounded at the top of the vehicle by a floor plate part (3) forming the vehicle floor, wherein at least one fire extinguishing lance access point (31) is formed in the floor plate part (3), through which, in the event of a failure of the traction battery (15), a fire extinguishing lance (35) can be driven from the top of the vehicle to the bottom of the vehicle into the interior of the battery in order to flood the interior of the battery with extinguishing agent, and wherein the floor plate part (3) together with the fire extinguishing lance access point (31) are covered by a floor covering (41) so as to be out of sight.

Description

[0001] The invention relates to a use of an extinguishing lance template for an electrically powered vehicle according to the preamble of claim 1, a method comprising the use of an extinguishing lance template according to the preamble of claim 5, and an emergency kit according to claim 11.

[0002] In an electrically powered vehicle, design measures must be taken so that, in the event of a failure of a high-voltage component or the traction battery, the fire brigade can drive a fire lance into the battery interior to flood the battery interior with extinguishing agent.

[0003] A generic electrically powered, two-track vehicle has a mounting space for a traction battery that is open vertically towards the bottom of the vehicle. The mounting space is bounded vertically by a floor panel forming the vehicle floor. The mounting space for the traction battery can be bounded on both sides in the transverse direction by side sills that define the lower edge of a side door opening in the vehicle. The battery mounting space is closed at the bottom by a battery underbody, which can be formed from a solid aluminum sheet. Viewed vertically, the horizontally oriented aluminum sheet can be located approximately at the level of the undersides of the sills. Such a vehicle is known by way of example from DE 10 2017 205 447 A1.

[0004] Due to geometric constraints, the body structure described above does not readily allow direct access from the outside of the vehicle to the underside of the traction battery for the (approximately 1.2m long) extinguishing lance. Instead, the extinguishing lance can be guided into the vehicle interior through the body-side door opening and from there driven through a lance access opening in the floor panel into the battery compartment to flood the battery space with extinguishing agent.

[0005] The access opening for the fire extinguisher lance, integrated into the floor panel, is closed by a plastic locking element during normal driving. Furthermore, the floor panel, including the access opening for the fire extinguisher lance, is concealed by a floor covering. Therefore, in an emergency, the access point for the fire extinguisher lance in the floor panel is not readily apparent to the fire department.

[0006] DE 10 2016 224 473 A1 discloses a system for enclosing an electrical energy storage device. DE 10 2016 200 368 A1 discloses a battery system and a method for extinguishing a fire in a battery module arranged within the battery system. DE 10 2017 205 447 A1 discloses a floor structure for an electrically powered vehicle. DE 10 2015 208 312 A1 discloses a two-track vehicle.

[0007] The object of the invention is to provide an electrically powered vehicle and an emergency kit for such a vehicle, by means of which easy access of the extinguishing lance to the battery interior is ensured in the event of an accident.

[0008] The problem is solved by the features of claim 1, 5 or 11. Preferred embodiments of the invention are disclosed in the dependent claims.

[0009] According to the features of claim 1, a fire extinguishing lance template is used for an electrically powered vehicle. The fire extinguishing lance template is assigned to the vehicle. The template, together with a fire extinguishing lance, can be part of an emergency kit for, for example, the fire department. In the event of an emergency, the fire department can position the template correctly on the vehicle's floor covering to allow for easy identification of the fire extinguishing lance access point, which is concealed beneath the floor covering. This reduces the time required to insert the fire extinguishing lance into the traction battery, thereby increasing the effectiveness of emergency response.

[0010] Preferably, the access point for the extinguishing lance in the floor panel is designed as an opening that is closed by a plastic locking element during normal driving. Alternatively, the access point can also be any other weakening of the material in the floor panel that acts as an impact point, thus simplifying the insertion of the extinguishing lance into the battery interior. Preferably, the access point for the extinguishing lance can be an opening already present in the floor panel, through which, for example, liquid dip coating from the cathodic dip coating (KTL) process during vehicle manufacturing can quickly drain away to prevent paint defects in the cured KTL layer.

[0011] In one technical implementation, the template may have a positioning opening. With the template correctly positioned in the vehicle, this opening can be roughly aligned with the access point for the fire extinguishing lance in the vehicle's vertical direction. In the event of an emergency, the fire department will therefore first drive the fire extinguishing lance through the positioning opening on the template, through the floor covering, and through the access point in the floor panel into the battery compartment.

[0012] With regard to simple, correct positioning of the template in the vehicle, the template geometry described below can be advantageous: The template can have a flat base section in which the positioning opening mentioned above is formed. When the template is correctly positioned in the vehicle, the base section can rest flat on the floor. To further simplify template positioning, the template can have at least one longitudinal stop acting in the vehicle's longitudinal direction and / or one transverse stop acting in the vehicle's transverse direction. Both the longitudinal and transverse stops can be aligned with corresponding body parts in the vehicle to ensure correct positioning.

[0013] The template geometry is determined by the structural design of the electric vehicle. Within the vehicle, the mounting space for the traction battery can be limited on both sides in the transverse direction by side sills. The side sills define the lower edge of a side door cutout in the vehicle body. The floor panel section forming the vehicle floor can be connected to the side sills on both sides in the transverse direction. Furthermore, the floor panel section can terminate in the longitudinal direction towards the rear of the vehicle at a heel panel section, which defines a rear-side footwell. The heel panel section is oriented approximately vertically. It then transitions further towards the rear into a horizontally oriented rear panel section. Rear seats (such as a rear bench seat) can be mounted on this rear panel section.The fire extinguishing lance access can be designed for easy access in an inner corner area of ​​the floor panel section, which spans between the heel panel section (running transversely to the vehicle) and the sill (running longitudinally to the vehicle). A B-pillar can also project upwards from the sill, separating a front side door opening from a rear side door opening. The B-pillar is connected to the sill at its lower base. To facilitate easy door entry, the B-pillar is positioned longitudinally offset in front of the heel panel section.

[0014] The following describes a template geometry specifically tailored to the body structure outlined above. A first longitudinal stop of the template, acting in the vehicle's longitudinal direction, can be a longitudinal stop leg bent upwards at approximately a right angle from the template's base section at a transition edge. With the template correctly positioned in the vehicle, the longitudinal stop leg can be contour-adapted to the heel plate section.

[0015] Furthermore, the template's transverse stop can be a leg bent upwards from the template's base section at a transition edge. With the template correctly positioned in the vehicle, the transverse stop leg can be contour-adapted to the inner surface of the sill, facing inwards.

[0016] In addition to the first longitudinal stop (i.e., the leg of the longitudinal stop), the template can have a second longitudinal stop. With the template correctly positioned in the vehicle, this second longitudinal stop can be contour-adapted to the base of the B-pillar. Therefore, with the aid of the first and second longitudinal stops, the template can be supported along the vehicle's longitudinal direction with virtually no play (i.e., with pinpoint accuracy) between the heel plate and the B-pillar.

[0017] To further support precise template positioning within the vehicle, the transverse stop leg can transition at its upper longitudinal edge into an approximately horizontally oriented, angled positioning guide. When the template is correctly positioned, the positioning guide can rest on the upper surface of a sill. Additionally, the positioning guide can be curved upwards towards the front of the vehicle in the vertical direction, forming the aforementioned second longitudinal stop, which extensively encompasses the rear side of the B-pillar base.

[0018] The special template geometry described above is based on the understanding that the KTL opening (which acts as the access point for the fire extinguishing lance), the base of the B-pillar, the inner side of the sill, and the heel plate section occupy a largely identical relative position to each other across all vehicle models. Accordingly, the template geometry described above can be used across different vehicles. The template geometry is therefore adapted to vehicle-specific geometric features that are largely identical across vehicles, so that the template can be used essentially regardless of the vehicle type.

[0019] The template can preferably be made from a solid metal material, which allows the template to be positioned securely on the vehicle floor despite its relatively large component weight.

[0020] The template helps reduce the time required to repair a breakdown, as the most effective point of impact in the floor panel is immediately recognizable to the fire department when the template is correctly positioned.

[0021] An embodiment of the invention is described below with reference to the accompanying figures.

[0022] They show: Fig. 1 in a perspective partial view a rear-side area of ​​a floor assembly of a body structure for an electrically powered vehicle; Fig. 2 a half-section view along the section plane zy from the Fig. 1; Fig. 3. A fire extinguishing lance template in a working position; and Fig. 4 the extinguishing lance template in isolation.

[0023] In the Fig. Figure 1 shows a rear section of a floor assembly of a body structure for an electrically powered, two-track vehicle. Accordingly, the floor assembly has two side sills 1, between which a floor panel section 3 extends in the transverse direction y of the vehicle. Adjoining the floor panel section 3 in the longitudinal direction x to the rear is a vertically oriented heel panel section 5, which defines a rear-side footwell 7. Further to the rear of the vehicle, the heel panel section 5 transitions into a horizontally oriented rear panel section 9, on which rear seats can be mounted.

[0024] In the Fig. 1 and Fig. 3. A suggested B-pillar 9 projects upwards from the driver's side sill 1, its base 11 being connected to the sill 1. The B-pillar 9 separates a front side door opening from a rear side door opening.

[0025] As from the Fig. As can be seen from Figure 2, the electrically powered vehicle has a mounting space 13 for a traction battery 15, open in the vehicle's vertical direction z towards the vehicle's bottom ( Fig. 2) The installation space 13 is limited upwards by the floor panel section 3. Furthermore, the installation space 13 is limited on both sides in the transverse direction y of the vehicle by the side sills 1.

[0026] In the Fig. 2 the traction battery 15 has a battery box 17 ( Fig. 2) which consists of an upper battery cover 19, a lower battery cover 21, and a battery housing wall 23 surrounding the side. Indicative battery cells 25 are arranged in the battery box 17. In the Fig. 2. Housing flanges 27 are formed laterally outwardly projecting on the battery housing wall 23 and are connected to the underside of the sill via a screw connection 29. In the Fig. Figure 2 shows only one half of the vehicle up to the vehicle center plane E. The opposite half of the vehicle, not shown, is a mirror image with respect to the vehicle center plane E.

[0027] As from the Fig. As can be seen further in section 1, there are 3 KTL openings 31 formed in the base plate part, which are closed during normal driving operation by a locking element 32 ( Fig. 2) are closed. One of these KTL openings 31 is located in an inside corner area 33 ( Fig. 1 or Fig. 3), which is stretched between the transverse heel plate section 5 and the driver's side sill 1. This KTL opening 31 acts as an access opening for a fire extinguishing lance. In the event of a failure of the traction battery 15, the fire brigade will use a fire extinguishing lance 35 ( Fig. 2) driven with a force F through a floor covering 41 of the vehicle floor and through the extinguishing lance access opening 31 into the battery interior. The extinguishing lance 35 is attached using a template 37 described below, which, together with the extinguishing lance 35 emergency kit 39 ( Fig. 2) forms.

[0028] In the event of an emergency, the template 37 is positioned correctly on the vehicle's floor covering 41 to enable position detection of the extinguishing lance access opening 31, which is located below the floor covering 41 and thus concealed from view. For position detection, the template has a positioning opening 45 in its template base section 43. When the template 37 is correctly positioned in the vehicle, the positioning opening 45 is aligned approximately in line with the extinguishing lance access opening 31 in the vehicle's vertical direction z, as shown in the Fig. 2 is indicated. This allows the extinguishing lance 35 to be driven through the template-side positioning opening 45, through the floor covering 41, through the extinguishing lance access opening 31 and through the upper battery cover 19 into the interior of the battery.

[0029] In the Fig. Figure 3 shows the template 37 in its operating position. The template 37 has, as a first longitudinal stop, a longitudinal stop leg 51 that is bent upwards at a right angle from the template base section 43 at a transition edge 49. The longitudinal stop leg 51 is in the Fig. 3 contour-adapted in conjunction with the heel plate part 5. In addition, the template 37 has in the Fig. 3 as a cross-stop, a cross-stop leg 55 bent upwards from the template base section 43 at a further transition edge 53. This is in the Fig. 3 contour-adapted in system with a sill inside.

[0030] The cross-stop leg 55 transitions at its upper longitudinal edge 57 into a horizontally oriented positioning rib 59. The positioning rib 59 is in the Fig. 3 in conjunction with a sill upper surface 61. In addition, the positioning guide 59 of the template 37 is curved upwards towards the front of the vehicle in the vehicle's vertical direction z, forming a second longitudinal stop 63. The second longitudinal stop 63 encompasses a large area of ​​the rear side of the pillar base 11 of the B-pillar 9. In the Fig. 4 The base section 43 of the template 37 also has mounting holes 65 on which a handle can be mounted.

[0031] By providing the first longitudinal stop 51 as well as the second longitudinal stop 63, the template 37 is in the Fig.3 supported in the longitudinal direction x of the vehicle essentially without longitudinal play between the heel plate part 5 and the B-pillar 9, which makes it easy to achieve a secure positioning of the template 37. Reference symbol list 1 sill 3 Floor plate part 5 heel plate part 7 rear footwell 9 B-pillar 11 Column base 13 Assembly room 15 traction batteries 17 Battery box 19 upper battery cover 21 lower battery cover 23 surrounding casing wall 25 battery cells 27 Housing flange 29 Screw connection 31 openings 32 Locking element 33 Inside corner area 35 Fire lance 37 Template 39 emergency kit 41 Floor covering 43 Basic section 45 Positioning opening 49 Transition edge 51 Longitudinal stop 53 Transition edge 55 Crosscut fence 57 upper longitudinal edge 59 Positioning bridge 61 Sill top 63 second longitudinal stop E Vehicle center longitudinal plane F force Δx longitudinal offset 65 mounting holes

Claims

[1] Use of a fire lance template (37) for an electrically powered vehicle, which in the event of a breakdown can be positioned correctly on the floor covering (41) of the electric vehicle in order to enable position detection of the fire lance access point (31) located below the floor covering (41), wherein the electrically powered vehicle is provided with a mounting space (13) for a traction battery (15) open in the vehicle's vertical direction (z) and bounded at the top of the vehicle by a floor plate part (3) forming the vehicle floor, wherein at least one fire lance access point (31) is formed in the floor plate part (3), through which, in the event of a breakdown of the traction battery (15), a fire lance (35) can be driven from the top of the vehicle to the bottom of the vehicle into the interior of the battery in order to flood the interior of the battery with extinguishing agent, and wherein the floor plate part (3) together The fire lance access (31) is covered by a floor covering (41) to prevent visibility. [2] Extinguishing lance template (37) for use according to claim 1, characterized by , that the template (37) has a positioning opening (45), and that when the extinguishing lance template (37) is positioned correctly in the vehicle, the template-side positioning opening (45) is aligned in the vehicle's vertical direction (z) with the extinguishing lance access (31), in particular with the extinguishing lance access opening (31), so that the extinguishing lance (35) can be driven through the template-side positioning opening (45), through the floor covering (41) and through the extinguishing lance access opening (31) into the interior of the battery. [3] Extinguishing lance template (37) according to claim 2, characterized by , that the template (37) has a base section (43) in which, in particular, the positioning opening (45) is formed, and that, in particular, when the template is positioned correctly, the template base section (43) lies flat on the floor covering (41). [4] Extinguishing lance template (37) according to one of claims 2 or 3, characterized by , that the template (37) has at least one longitudinal stop (51, 63) acting in the longitudinal direction (x) of the vehicle and / or one transverse stop (55) acting in the transverse direction (y) of the vehicle for the correct positioning in the vehicle. [5] A method comprising the use of a fire extinguishing lance template (37) according to one of claims 2 to 4 in the event of a fire in an electrically powered vehicle, with a mounting space (13) for a traction battery (15) open in the vehicle's vertical direction (z) towards the vehicle's bottom, which is bounded towards the top of the vehicle by a floor plate part (3) forming the vehicle floor, wherein at least one fire extinguishing lance access (31) is formed in the floor plate part (3), through which, in the event of a failure of the traction battery (15), a fire extinguishing lance (35) can be driven from the top of the vehicle to the bottom of the vehicle into the interior of the battery in order to flood the interior of the battery with extinguishing agent, and wherein the floor plate part (3) together with the fire extinguishing lance access (31) is covered by a floor covering (41) to conceal it from view, wherein a fire extinguishing lance template (37) according to one of claims 2 to 4 is associated with the vehicle,and wherein the extinguishing lance template (37) can be positioned correctly on the floor covering (41) of the vehicle in the event of an accident in order to enable position detection of the extinguishing lance access (31) located below the floor covering (41) which is protected from view, characterized by, that the mounting space (13) for the traction battery (15) is bounded on both sides in the transverse direction (y) of the vehicle by lateral sills (1) which define a lower edge of a side door cutout, and that the floor panel part (3) is connected on both sides to the respective sill (1), and that the floor panel part (3) extends in the longitudinal direction (x) of the vehicle towards the rear of the vehicle via a vertically oriented heel panel part (5) which defines a rear-side footwell (7) into a horizontally oriented rear panel part (8) on which rear seats can be mounted, and that the extinguishing lance access opening (31) is formed in an inner corner area (33) which is spanned between the heel panel part (5) and the sill (1) in the floor panel part (3). [6] Method according to claim 5, characterized by, that a B-pillar (9) projects upwards from the sill (1), which is connected to the sill (1) by its pillar base (11) and / or is arranged by a longitudinal offset (Δx) in front of the heel plate part (5). [7] Method according to claim 5 or 6, characterized by , that a first longitudinal stop (51) of the template (37) is a longitudinal stop leg bent upwards from the template base section (43) at a transition edge (49), and that when the template (37) is positioned correctly in the vehicle, the longitudinal stop leg (51) is contour-adapted in contact with the heel plate part (5). [8] Method according to claim 5, 6 or 7, characterized by , that the transverse stop (55) of the template (37) is a transverse stop leg bent upwards from the template base section (43) at a transition edge (53), and that when the template (37) is positioned correctly in the vehicle, the transverse stop leg (55) is contour-adapted in contact with an inner sill. [9] Method according to claim 5, 6, 7 or 8, characterized by , that the template (37) has a second longitudinal stop (63) which, when the template (37) is positioned correctly in the vehicle, is contour-adapted to the base (11) of the B-pillar (9), so that the template (37) is supported in the longitudinal direction (x) of the vehicle, bridging the longitudinal offset (Δx), i.e. essentially without longitudinal play, between the heel plate part (5) and the B-pillar (9). [10] Method according to claim 9, characterized by, that the transverse stop leg (55) transitions at its upper longitudinal edge (57) into a positioning guide (59) that is approximately horizontally oriented, and that the positioning guide (59) is in contact with a sill top surface (61) when the template is positioned correctly, and / or that, in particular, the positioning guide (59) is bent upwards towards the front of the vehicle in the vehicle's vertical direction (z), forming the second longitudinal stop (63) which encompasses a large area of ​​the rear side of the pillar base (11) of the B-pillar (9). [11] Emergency kit with a fire lance template (37) by means of which the position of the fire lance access point (31) located below the floor covering (41) in an electrically powered vehicle is enabled to be detected, with a mounting space (13) for a traction battery (15) open in the vehicle's vertical direction (z) towards the bottom of the vehicle, which is bounded at the top of the vehicle by a floor plate part (3) forming the vehicle floor, wherein at least one fire lance access point (31) is formed in the floor plate part (3), through which, in the event of a failure of the traction battery (15), a fire lance (35) can be driven from the top of the vehicle to the bottom of the vehicle into the interior of the battery in order to flood the interior of the battery with extinguishing agent, and wherein the floor plate part (3) together with the fire lance access point (31) is covered by a floor covering (41) in a way that protects it from view.

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