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WO2018153781A1 - Boîtier de batterie pour batterie de véhicule, batterie de véhicule et véhicule électrique - Google Patents

Boîtier de batterie pour batterie de véhicule, batterie de véhicule et véhicule électrique Download PDF

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Publication number
WO2018153781A1
WO2018153781A1 PCT/EP2018/053874 EP2018053874W WO2018153781A1 WO 2018153781 A1 WO2018153781 A1 WO 2018153781A1 EP 2018053874 W EP2018053874 W EP 2018053874W WO 2018153781 A1 WO2018153781 A1 WO 2018153781A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
battery
force
dissipation element
battery housing
Prior art date
Application number
PCT/EP2018/053874
Other languages
German (de)
English (en)
Inventor
Daniel Nierhoff
Erik Hilfrich
Original Assignee
Thyssenkrupp Steel Europe Ag
Thyssenkrupp Ag
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 Thyssenkrupp Steel Europe Ag, Thyssenkrupp Ag filed Critical Thyssenkrupp Steel Europe Ag
Publication of WO2018153781A1 publication Critical patent/WO2018153781A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a battery housing for a vehicle battery having at least one module receptacle for receiving a battery module, which is delimited at least by a side wall and an intermediate floor, and with a below the false floor underrun protection for protection against unwanted intrusion of objects from below. Furthermore, the invention relates to a vehicle battery having at least one battery module and such a battery housing. Another object of the invention is an electric vehicle with such a battery case.
  • Electric vehicles typically have a vehicle battery for storing electrical energy, which can be used to supply an electric drive and other electrical units of the electric vehicle.
  • vehicle batteries consist of several battery modules, which are arranged in a common battery case.
  • the battery case usually module adapters in the form of subjects, which are limited by side walls and an intermediate floor.
  • the intermediate bottom seals the module receptacle down against splashing water and is usually in thermal contact with the battery module accommodated in the module receptacle so that, despite the sealing downwards, cooling of the battery module can take place via the intermediate floor.
  • Such battery cases must be resistant to crash loads in order to effectively protect the battery modules from damage.
  • such battery cases therefore often have an underrun protection, which is arranged in the manner of a second floor below the false floor.
  • beam-like beams are usually arranged between the underrun protection and the intermediate floor.
  • These carriers can be arranged in an embodiment below the module receptacles, these span and have a high moment of resistance.
  • the carrier may be below the intermediate walls, which form a very rigid structure with the intermediate walls, which hardly deformed itself, however, the underrun protection is not supported below the module receptacles on a larger area. If the module mounts are too large, the underride protection can be pressed down to the intermediate floor, which can lead to damage to the battery modules.
  • a battery housing for a vehicle battery having at least one module receptacle for receiving a battery module which is delimited at least by a side wall and an intermediate floor, and with a below the false floor underrun protection to protect against unwanted intrusion of objects from below the underrun protection is reinforced in such a way that a force acting from below on the underrun protection force can be introduced into the side wall and a deformation of the false bottom is substantially avoided.
  • the device according to the invention has the advantage over the prior art that forces acting on the underride guard from below and in particular next to the side wall are introduced into the side wall of the module mount.
  • Under strong force amplification reduces the deformation of the underrun protection and at the same time still offers high deformation space to avoid contact of the underrun protection with the intermediate floor or with the battery modules substantially, which could damage the battery modules.
  • the derivative of forces acting on the bottom of the battery case thus takes place substantially through the side wall of the module receptacle and / or the side wall of the battery case. This reduces the risk of damaging a battery module in the module receptacle as a result of a force from below.
  • the module receptacle is limited by a plurality of side walls and the intermediate floor.
  • the side walls may be outer walls and / or inner walls of the battery case.
  • the side walls may be formed as elements of a support structure, for example a support frame of the battery case.
  • the underrun protection may be supported on two opposite side walls in such a way that a force acting from below on the underrun protection force can be introduced into both side walls.
  • the underride protection is formed substantially plate-shaped, whereby a space-optimized protection against unwanted intrusion of objects is provided from below, which offers increased ground clearance.
  • the underrun protection is connected via an attachment point arranged below the side wall with the intermediate bottom and / or with a connecting element which bears against the side wall from below. Via the connecting point arranged below the side wall, a force acting from below on the underrun protection can be introduced into the side wall via the intermediate bottom and / or via the connecting element. Since the attachment point below the sidewall, i. side of the module receptacle, is arranged, forces acting from below can be introduced through the intermediate bottom and / or the connecting element in the side wall without deforming the intermediate floor.
  • the intermediate bottom is preferably located on an underside of the side wall, so that a force can be discharged via the arranged below the side wall portion of the intermediate bottom in the side wall.
  • the underrun protection is not connected via a connection point in a region vertically below the module receptacle with the intermediate bottom, so that a transmission of acting on the underrun protection force is avoided on the false floor in the module receiving.
  • At least one force-diverting element is arranged as a reinforcement between underrun protection and intermediate floor, which is supported in particular on the side wall.
  • About the force dissipation element can be derived from below the module holder acting on the underrun protection force in the side wall.
  • At least one force-diverting element is arranged as a reinforcement between underrun protection and intermediate floor and is configured in this way. Det, that a deformation space, in particular in the area below a middle between two opposite side walls of the module receptacle is greater, ie the distance between the power dissipation element and intermediate bottom is greater and towards the edge in the direction of the side wall decreases the distance, in particular, the arranged force dissipation element supported on the side wall is.
  • the force-diverting element is configured such that a force acting on the underride guard in the middle between two side walls of the module mount is dissipated via the force-diverting element to one or both side walls.
  • the force dissipation element is designed such that the force dissipation element does not touch the intermediate bottom below the module receptacle, so that impacts acting from below are not transmitted via the force dissipation element to the intermediate bottom and a battery module accommodated in the module receptacle.
  • the force dissipation element preferably only touches the intermediate bottom in a region in which the side wall abuts the intermediate bottom from above, so that forces acting from below can be diverted through the intermediate bottom into the side wall.
  • the module holder has, for example, a substantially rectangular cross-section.
  • the longer side edge defines a longitudinal axis passing through the midpoint of the cross section of the module receptacle and the shorter side edge defines a transverse axis passing through the midpoint of the longitudinal section of the module receptacle.
  • the force dissipation element is designed symmetrically to the longitudinal axis. In an alternative, preferred embodiment, the force dissipation element is designed symmetrically to the transverse axis.
  • the force dissipation element is connected to the side wall and / or the intermediate bottom and / or the underrun protection.
  • the force dissipation element is attached to the side wall and / or the underrun protection.
  • the force dissipation element extends substantially over an entire width of the module receptacle and / or an entire length of the module receptacle.
  • the force dissipation element has recesses. These recesses facilitate access to the limited by the intermediate floor and the force dissipation element part of the deformation space, for example for mounting or maintaining a cooling device. Furthermore, by such recesses, the weight of the force dissipation element can be reduced.
  • the force dissipation element extends only over part of the width of the module receptacle and / or only over part of the length of the module receptacle. This facilitates access to the deformation space, for example for mounting and maintaining a cooling device. Furthermore, can be made available by extending the force dissipation element over only a portion of the width of the module receptacle and / or a portion of the length of the module recording a weight-reduced force dissipation element.
  • the force-diverting element preferably extends in each case over part of the width of two adjacent module receptacles and / or in each case over part of the length of two adjacent module receptacles. This makes it possible to reduce the number of required components.
  • the force-diverting element has a surface facing the intermediate bottom, which is spaced from the intermediate bottom in the region below a middle between two opposite side walls of the module receptacle and abuts against the intermediate bottom in the region below a side wall.
  • Such an embodiment of the force-diverting element makes it possible to divert forces acting on the force-diverting element to the side wall. Due to the distance of the force dissipation element from the intermediate bottom in the region below the center of the module receptacle, the risk that the force dissipation element presses as a result of a force from below into the false floor, is reduced.
  • the intermediate bottom facing surface is designed such that occurring by a force voltages are distributed as evenly as possible in the force dissipation element.
  • the risk of deformation of the force-diverting element and / or an intrusion of the force-diverting element into the intermediate floor and / or into the battery modules is advantageously reduced and a uniform discharge of an acting force is made possible.
  • the force dissipation element may have a surface facing the intermediate bottom, which is spaced from the intermediate bottom in the area below a middle between two opposite side walls of the module receptacle and abuts against the side wall in the region below a side wall, so that forces can be introduced directly into the side wall.
  • the force-diverting element has a smaller thickness in the region of the center than in the region of the side wall.
  • the force dissipation element has an arcuate or substantially V-shaped cross section.
  • the force dissipation element is designed as a sheet with an arcuate or substantially V-shaped cross-section.
  • the V-shaped cross section is flattened in a central region.
  • the arcuate or substantially V-shaped cross-section causes as uniform as possible a derivative of the forces on the force dissipation element in the side wall.
  • voltage spikes in the force dissipation element are avoided by the arcuate or substantially V-shaped cross section.
  • the force dissipation element may have a trapezoidal cross-section. In this context, it has proved to be advantageous if the force dissipation element is formed from a plastic.
  • the force dissipation element is formed trough-shaped or channel-shaped.
  • the trough or trough-shaped design causes a force distribution as uniform as possible distribution of stresses in the force dissipation element. As a result, the risk of deformation and / or intrusion of the force dissipation element in the intermediate bottom and / or in the module receptacle is reduced.
  • the force dissipation element is made of fiber-reinforced plastic.
  • the fiber-reinforced plastic is sprayed onto the underrun protection.
  • the trough-shaped or channel-shaped force dissipation element is not formed continuously.
  • the trough-shaped or trough-shaped force-diverting element is designed in the form of spaced-apart ribs of defined width.
  • the ratio of rib width to the distance of the ribs determines the load capacity of the force dissipation element.
  • the battery housing has a plurality of module receptacles for receiving a respective battery module.
  • This allows the arrangement of several battery modules in a battery case. This enables an increase in performance of the arranged in the battery case vehicle battery. It is hereby provided a battery case for a powerful vehicle battery.
  • Two adjacent module receptacles may have a common side wall which bounds both module receptacles.
  • the outer module receptacles may be bounded by a sidewall which is an outer wall of the battery housing.
  • the side wall preferably has a fastening device, for example a mounting device. frame, for attaching the battery case to a vehicle.
  • connecting elements for connecting the underrun protection to the side wall are arranged below the side wall. Below an outer side wall arranged connecting elements are preferably integrated in the mounting frame and / or the outer wall of the battery case.
  • the intermediate bottom is formed as a continuous intermediate bottom, which limits a plurality of module receptacles down.
  • the underrun protection is designed as a continuous underrun protection, which is arranged below a plurality of module receptacles.
  • the underrun protection is supported via a force dissipation element arranged in the deformation space on a side wall arranged between the module receptacles.
  • a force acting on the underrun protection via the force dissipation element in an area between the module recordings can be derived.
  • a force acting on the underride protection on the force dissipation element in the arranged between the module receiving side wall can be introduced.
  • a force effect of the underrun protection is avoided on the false floor and / or the module shots in the field of module shots. This reduces the risk of deformation of the false bottom and / or the module receptacle and thus a damage therein arranged battery modules.
  • the force dissipation element is designed as a continuous force-dissipation element, which is arranged below a plurality of module receptacles.
  • the arrangement of a continuous force dissipation element among several module receptacles reduces the number of components. As a result, a relatively fast, simple and inexpensive to manufacture battery housing can be provided.
  • a cooling device and / or a passage for a cooling fluid is arranged in the deformation space.
  • the cooling of the battery modules can be done indirectly through the intermediate floor.
  • Another object of the present invention is a vehicle battery having at least one battery module and a battery housing described above, wherein the battery module is arranged in a module receptacle, in particular such that it is in thermal contact with the intermediate bottom. This advantageously provides a vehicle battery with improved crash performance and efficient cooling.
  • Another object of the present invention is a vehicle with a battery housing described above or with a vehicle battery described above.
  • the same advantages can be achieved as have been described in connection with the battery case.
  • Figure 1 shows a schematic sectional view of a battery case for a vehicle according to a first embodiment of the present invention.
  • Figure 2 shows a perspective view of the battery case of Figure 1 from below, with the underride guard is removed.
  • FIG. 3 shows a schematic sectional view of a battery case for a vehicle according to a second embodiment of the present invention.
  • Figure 4 is a schematic sectional view of a battery case for a vehicle according to a third embodiment of the present invention.
  • Figure 5 is a schematic sectional view of a battery case for a vehicle according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic sectional view of a battery case for a vehicle according to a fifth embodiment of the present invention.
  • FIG. 7 shows a schematic sectional view of a battery case for a vehicle according to a sixth embodiment of the present invention.
  • FIG. 1 shows a schematic sectional view of a battery housing 1 for a vehicle battery according to a first exemplary embodiment of the present invention.
  • the battery housing 1 has a plurality of module receptacles 2, in each of which a battery module 3 can be accommodated.
  • the module receptacles 2 have a rectangular plan and are each bounded laterally by opposing side walls 4, 4 '. Downwardly bounded with the side walls 4, 4 'intermediate bottom 5 limits the module holders 2, so that a liquid-tight completion of the module holder 2 is ensured down.
  • the battery case 1 has a plate-shaped cover 6, which limits the module holders 2 upwards.
  • the intermediate bottom 5 extends substantially in the horizontal direction and abuts against the respective undersides of the side walls 4, 4 '.
  • a first side wall 4 is formed as an inner side wall, which separates two adjacent module receptacles 2 from each other.
  • the first side wall 4 is a common side wall of two module receptacles 2.
  • the common side wall 4 may be formed, for example, as a cross member.
  • a second side wall 4 ' is formed as an outer wall of the battery case 1.
  • the second side wall 4 ' has a fastening element 18 designed as a mounting frame for fastening the battery housing 1 to a vehicle, in particular to a chassis of the vehicle.
  • Below the intermediate bottom 5, a substantially plate-shaped underrun protection 7 is arranged below the intermediate bottom 5, a substantially plate-shaped underrun protection 7 is arranged below the intermediate bottom 5, a substantially plate-shaped underrun protection 7 is arranged below the intermediate bottom 5, a substantially plate-shaped underrun protection 7 is arranged below the intermediate bottom 5, a substantially
  • the underrun protection 7 is supported by connecting elements 10, 10 'on the side walls 4, 4'.
  • the underrun protection 7 with the connecting elements 10, 10 'via connection points 9, 9' are connected, which are arranged below the side walls 4, 41.
  • a force discharge via the connection points 9, 9 'in the connecting elements 10, 10' and then in the side walls 4, 4 ' a force discharge via the connection points 9, 9 'in the connecting elements 10, 10' and then in the side walls 4, 4 'take place.
  • the underride guard 7 with the connecting elements 10, 10 'in the connection points 9, 9' be screwed.
  • stampings can be provided for receiving screw heads.
  • the underrun protection 7 is arranged at a distance from the intermediate bottom 5, so that a deformation space 8 is formed between the intermediate bottom 5 and the underrun protection. Because of the deformation space 8 formed between the intermediate floor 5 and the underrun protection 7, deformation of the underrun protection 7 does not directly lead to intrusion of the underrun protection 7 into the intermediate bottom 5 and / or the module receptacle 2. This places the risk of damaging one in the module receptacle 2 Battery module 3 reduced as a result of deformation of the underrun protection 7.
  • a force dissipation element 1 1 is arranged within the deformation space 8, via which the underrun protection 7 on the side walls 4, 4 'is supported.
  • the force dissipation element 1 1 is designed as a sheet with arcuate cross-section.
  • the force dissipation element 1 1 is connected to the underside of the side walls 4, 4'.
  • the force dissipation element 1 1 is preferably made of high-strength steel.
  • the high-strength steel has a tensile strength of at least 780 MPa, in particular of at least 980 MPa.
  • the force dissipation element 1 1 is attached to the connecting elements 10, 10 '.
  • a force acts from below on the force introduction element 1 first
  • the force causes a voltage in the force dissipation element 1 1. Due to the arcuate cross section, the stress is distributed as evenly as possible within the force dissipation element 11. As a result, voltage peaks and thus breakage or tearing of the force dissipation element 1 1 are avoided.
  • the force derivation element which has an arcuate cross-section, conducts In this way, a force acting on the underrun protection 7 is discharged via the force-diverting element 1 1 onto the side wall 4, 4 'and an intrusion of the force is applied Force dissipation element 1 1 avoided in the intermediate bottom 5.
  • the execution of the force introduction element 1 1 as a sheet metal with arcuate cross section allows the largest possible space between the intermediate bottom 5 and the force dissipation element 1 1 can be used as a cooling area 13.
  • a cooling device 12 can be arranged in the cooling area 13.
  • the cooling region 13 formed between force-diverting element 11 and intermediate bottom 5 can serve to carry out a cooling fluid.
  • the cooling of a battery module 3 can be done indirectly via the intermediate bottom 5.
  • the battery module 3 is arranged in the module receptacle such that the intermediate bottom 5 and the battery module 3 are in thermal contact. In this way, an efficient and space-optimized cooling of the battery module 3 is possible by the cooling device 12 arranged in the cooling region 13 or by the coolant arranged through the cooling region 13.
  • the force dissipation element 1 1 stiffeners in the form of beads 1 1 on.
  • the beads 1 1 are arranged parallel to a shorter side of the force dissipation element 1 1.
  • the force dissipation element 1 1 is stiffened.
  • the fastening element 18 is designed as a mounting frame revolving around the outer contour of the battery housing 1. Within the mounting frame 18, a parallel to a longer side of the mounting frame 18 extending longitudinal member 23 is arranged.
  • the battery case has a first row 24 and a second row 25 of module holders 2.
  • the longitudinal member 23 divides the battery housing 1 into the area of the first row 24 and the area of the second row 25.
  • the module receptacles 2 of a row are arranged substantially parallel to one another.
  • the module receptacles 2 of a row are arranged such that the longer sides of the module receptacles 2 of a row run parallel to one another.
  • the module receptacles 2 are preferably arranged in the first and second rows 24, 25 such that the longer side of the module receptacles 2 runs essentially perpendicular to the longitudinal member 23.
  • the connecting elements 10, 10 ' are formed as cross beams, which are arranged perpendicular to the longitudinal beam 23.
  • the force dissipation element 1 1 recesses. These advantageously reduce the weight of the force dissipation element 11.
  • FIG. 3 shows a schematic sectional view of a battery housing 1 according to a second exemplary embodiment of the invention.
  • the battery case according to the second embodiment differs from the first embodiment in the cross section of the force dissipation member 1 1.
  • the force dissipation member 1 1 of the second embodiment has a substantially V-shaped cross section.
  • the cross-section of the force-diverting element 11 has a flattening 30 in the middle, so that a trapezoidal cross-sectional arrangement of the intermediate bottom 5 and force-diverting element 11 results.
  • the force dissipation element 1 1 may be formed of a metal sheet.
  • the force-diverting element 11 is preferably made of a high-strength steel, in particular one with a tensile strength of at least 780 MPa, in particular of at least 980 MPa.
  • FIG. 4 shows a schematic sectional view of a battery housing 1 according to a third exemplary embodiment of the invention.
  • the battery housing 1 according to the third embodiment has, similar to the battery housing 1 according to the second embodiment, a force dissipation element 1 1, which has a substantially V-shaped cross-section in the region below the module holder 2.
  • the force dissipation element 1 1 is integrally connected to the connecting element 10, to which the underrun protection 7 is connected.
  • the force dissipation element 1 1 On the side opposite the connecting element 10 side of the module receptacle 2, the force dissipation element 1 1 is connected to a second connecting element 10 '. As indicated in Figure 4, the force dissipation elements 1 1 below adjacent module receptacles 2 are each formed integrally with a connecting element 10.
  • the force Elements 1 1 are designed as plates, preferably made of a high-strength steel having a tensile strength of at least 780 MPa, in particular of at least 980 MPa.
  • FIG. 5 shows a schematic sectional view of a battery housing 1 according to a fourth exemplary embodiment of the present invention.
  • a force dissipation element 1 1 is provided in the battery case 1 of the fourth embodiment, which extends over only a part of the width B of the module holder 2, so that easier access to the deformation space, for example, for assembly and maintenance of a cooling device.
  • the force dissipation element 1 1 extends over part of the width B of two adjacent module receptacles 2.
  • connection point 9 of the underrun protection 7 is bolted to the force dissipation element 1 1 and the intermediate bottom 5.
  • a sleeve 19 is arranged, through which a connecting means, such as a screw, can be performed.
  • FIG. 6 shows a fifth exemplary embodiment of a battery housing 1 according to the invention in a schematic sectional view.
  • a force dissipation element 1 1 is arranged, which is fixedly connected to the underrun protection 7.
  • the force dissipation element 1 1 may for example be formed from a plastic, which is preferably molded onto the underrun protection 7.
  • the sprayed-on plastic is preferably fiber-reinforced, in particular short-fiber reinforced.
  • the force-diverting element 11 is preferably made of a polyamide, in particular of PA6.6 GF30.
  • the underrun protection 7 may be designed as a metal sheet and on the intermediate bottom 5 facing top have a bonding agent and / or a plastic coupling layer. In this respect, the force dissipation element 1 1 and the underrun protection form a plastic-metal hybrid component.
  • the force dissipation element 1 1 has a trapezoidal cross-section.
  • the force-diverting element 11 extends only over part of the width of the module receptacle and only over part of the length of the module receptacle 2.
  • a plurality of mutually spaced-apart force-diverting elements 11 are distributed over the length of the side wall 4, 4 '. This results in a non-penetrating in a direction parallel to the side wall 4, 4 'direction force dissipation structure consisting of several force dissipation elements 1 1. Insofar results in a rib-like force dissipation structure.
  • the ratio of the width of the Force dissipation elements 1 1 to the distance between the power dissipation elements 1 1 determines the load capacity of the underrun protection 7. By suitable choice of this ratio, the load capacity of the underrun protection and thus the battery case 1 can be adjusted.
  • connection of the force dissipation element 1 1 via a arranged below a side wall 4 connection point 9.
  • the assembly of underrun protection 7 and force dissipation element 1 1 is bolted to the intermediate bottom 5.
  • a sleeve 19 is arranged, through which a connecting means, such as a screw, can be performed.
  • FIG. 7 shows a schematic sectional view of a sixth exemplary embodiment of a battery housing 1 according to the present invention.
  • the battery housing according to the sixth embodiment has a trough-shaped force dissipation element 1 1, which is fixedly connected to the underrun protection 7.
  • the underrun protection 7 and the force dissipation element 1 1 are integrally connected to each other.
  • the underrun protection 7 is made of a fiber-reinforced plastic.
  • the underrun protection 7 consists of a lower fiber mat 20.
  • the force dissipation element 1 1 has a the intermediate bottom 5 facing surface 21, which is formed of a fiber-reinforced plastic and a layer 22 of polymer foam, via which the force dissipation element 1 1 connected to the underrun protection 7 is.
  • the fiber-reinforced plastic of the underrun protection 7 and / or of the force dissipation element 1 1 preferably comprises carbon fibers or aramid fibers. Particularly preferably, the fibers are aligned within the plastic in the direction of the shorter length of the module holder 2. As a result, a weight-reduced protection of the module receptacle 2 and battery modules 3 arranged therein is advantageously provided, which at the same time has a high crash performance.
  • a recess 31 is further provided, through which a connecting means, such as a screw, can be performed to connect to the underride protection 7 firmly connected force dissipation element 1 1 arranged in a side wall 4 connection point 9 to the intermediate bottom 5 ,
  • the battery housing 1 described above for a vehicle battery have at least one module receptacle 2 for receiving a battery module 3, wherein the module receptacle 2 is limited at least by a side wall 4, 4 'and an intermediate bottom 5. Below the intermediate floor 5, an underrun protection 1 1 is arranged to protect against unwanted intrusion of objects from below.
  • a deformation space 8 is arranged between the intermediate bottom 5 and the underrun protection 1 1, in which the underride 1 1 can penetrate due to a force from below without deforming the intermediate bottom 5, wherein the underrun protection 1 1 on the side wall 4, 4 'supported is that a force acting from below on the underrun protection 1 1 force in the side wall 4, 4 'can be introduced.
  • the risk of damage to a battery module 3 in the module holder 2 is reduced as a result of a force from below.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Combustion & Propulsion (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un boîtier de batterie pour une batterie de véhicule, le boîtier comprenant au moins un logement de module pour le logement d'un module de batterie, lequel logement est délimité au moins par une paroi latérale et un fond intermédiaire, et une protection anti-encastrement agencée au-dessous du fond intermédiaire aux fins de protection contre une pénétration indésirable d'objets par le bas. La protection anti-encastrement est renforcée de telle manière qu'une force agissant par le bas sur la protection anti-encastrement peut être appliquée dans la paroi latérale et une déformation du fond intermédiaire est sensiblement évitée, au moins un élément de déviation de force faisant office de renforcement étant agencé entre la protection anti-encastrement et le fond intermédiaire, et étant en particulier en appui sur la paroi latérale.
PCT/EP2018/053874 2017-02-22 2018-02-16 Boîtier de batterie pour batterie de véhicule, batterie de véhicule et véhicule électrique WO2018153781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017103654.7 2017-02-22
DE102017103654.7A DE102017103654B4 (de) 2017-02-22 2017-02-22 Batteriegehäuse für eine Fahrzeugbatterie, Fahrzeugbatterie und Elektrofahrzeug

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WO2018153781A1 true WO2018153781A1 (fr) 2018-08-30

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CN110931837A (zh) * 2019-12-18 2020-03-27 深圳市国威科创新能源科技有限公司 自动插侧板机
CN111129379A (zh) * 2018-10-30 2020-05-08 大众汽车有限公司 用于容纳电池模块的模块支架单元
CN111883698A (zh) * 2019-05-03 2020-11-03 现代自动车株式会社 用于车辆的电池壳体
WO2021175090A1 (fr) * 2020-03-04 2021-09-10 比亚迪股份有限公司 Bac à batterie, bloc-batterie et véhicule électrique
CN113424360A (zh) * 2019-02-13 2021-09-21 利萨·德雷克塞迈尔有限责任公司 用于制造汽车的牵引电池的方法
DE102023002333A1 (de) 2023-06-09 2024-05-29 Mercedes-Benz Group AG Batteriegehäuse und Batterieanordnung
WO2024121599A1 (fr) 2022-12-07 2024-06-13 Arcelormittal Couvercle supérieur pour bloc-batterie à renforts intégrés, bloc-batterie et son procédé d'assemblage
US12128749B2 (en) 2019-05-08 2024-10-29 Audi Ag Energy store housing assembly for a motor vehicle

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DE102018115919A1 (de) 2018-07-02 2020-01-02 Audi Aktiengesellschaft Traktionsbatterie eines Kraftfahrzeugs
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EP4183580A1 (fr) 2021-11-22 2023-05-24 Autoneum Management AG Plaque d'impact avec le sol pour une batterie de véhicule électrique
FR3134925A1 (fr) * 2022-04-25 2023-10-27 Faurecia Systemes D'echappement Batterie de stockage d’électricité
KR20240029356A (ko) * 2022-08-26 2024-03-05 삼성에스디아이 주식회사 하부 보호 커버 및 이를 갖는 배터리팩
DE102022121801A1 (de) 2022-08-29 2024-02-29 Bayerische Motoren Werke Aktiengesellschaft Batterie für ein Kraftfahrzeug sowie Kraftfahrzeug
DE102022124584A1 (de) * 2022-09-26 2024-03-28 Audi Aktiengesellschaft Fahrzeug mit einem Hochvoltbatteriesystem
DE102023118466A1 (de) * 2023-07-12 2025-01-16 Bayerische Motoren Werke Aktiengesellschaft Stützstruktur und Verfahren zur Herstellung der Stützstruktur

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CN111129379A (zh) * 2018-10-30 2020-05-08 大众汽车有限公司 用于容纳电池模块的模块支架单元
CN113424360A (zh) * 2019-02-13 2021-09-21 利萨·德雷克塞迈尔有限责任公司 用于制造汽车的牵引电池的方法
CN113424360B (zh) * 2019-02-13 2023-11-03 利萨·德雷克塞迈尔有限责任公司 用于制造汽车的牵引电池的方法
CN111883698A (zh) * 2019-05-03 2020-11-03 现代自动车株式会社 用于车辆的电池壳体
CN111883698B (zh) * 2019-05-03 2025-03-11 现代自动车株式会社 用于车辆的电池壳体
US12128749B2 (en) 2019-05-08 2024-10-29 Audi Ag Energy store housing assembly for a motor vehicle
CN110931837A (zh) * 2019-12-18 2020-03-27 深圳市国威科创新能源科技有限公司 自动插侧板机
WO2021175090A1 (fr) * 2020-03-04 2021-09-10 比亚迪股份有限公司 Bac à batterie, bloc-batterie et véhicule électrique
WO2024121599A1 (fr) 2022-12-07 2024-06-13 Arcelormittal Couvercle supérieur pour bloc-batterie à renforts intégrés, bloc-batterie et son procédé d'assemblage
DE102023002333A1 (de) 2023-06-09 2024-05-29 Mercedes-Benz Group AG Batteriegehäuse und Batterieanordnung

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DE102017103654B4 (de) 2022-04-21

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