DE102020216378A1 - High-voltage battery for an electrically powered vehicle - Google Patents
High-voltage battery for an electrically powered vehicle Download PDFInfo
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- DE102020216378A1 DE102020216378A1 DE102020216378.2A DE102020216378A DE102020216378A1 DE 102020216378 A1 DE102020216378 A1 DE 102020216378A1 DE 102020216378 A DE102020216378 A DE 102020216378A DE 102020216378 A1 DE102020216378 A1 DE 102020216378A1
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- 239000007795 chemical reaction product Substances 0.000 claims abstract description 3
- 238000007872 degassing Methods 0.000 claims description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 230000004913 activation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
-
- 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
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/13—Failsafe arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/30—Sensors
- B60Y2400/302—Temperature sensors
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Die Erfindung betrifft eine Hochvoltbatterie für ein elektrisch betriebenes Fahrzeug, mit einem Batteriegehäuse (7), in dem Batteriezellen (37) angeordnet sind, wobei bei einem thermischen Batteriezellen-Event (T) Brandgas (G) und andere Reaktionsprodukte aus einer der Batteriezellen (37) in den Gehäuseinnenraum austreten. Erfindungsgemäß ist im Batteriegehäuse (7) zumindest ein Gasgenerator (25) angeordnet, der im thermischen Batteriezellen-Event (T) einen pneumatischen Druckstoß (D) erzeugt, mittels dem ein Batteriegehäuse-Querschnitt (31) freilegbar ist, aus dem das Brandgas (G) nach batterieaußen strömt.The invention relates to a high-voltage battery for an electrically operated vehicle, having a battery housing (7) in which battery cells (37) are arranged, with fire gas (G) and other reaction products from one of the battery cells (37 ) escape into the interior of the housing. According to the invention, at least one gas generator (25) is arranged in the battery housing (7), which generates a pneumatic pressure surge (D) in the thermal battery cell event (T), by means of which a battery housing cross section (31) can be exposed, from which the fire gas (G ) flows to the outside of the battery.
Description
Die Erfindung betrifft eine Hochvoltbatterie für ein elektrisch betriebenes Fahrzeug gemäß dem Oberbegriff des Anspruches 1.The invention relates to a high-voltage battery for an electrically operated vehicle according to the preamble of claim 1.
In einem elektrisch betriebenen Fahrzeug sind Maßnahmen zu treffen, damit im Falle eines thermischen Batteriezellen-Events eine ausreichend lange Evakuier-Zeitdauer verbleibt, innerhalb der die Fahrzeuginsassen das Fahrzeug sicher verlassen können.Measures must be taken in an electrically operated vehicle so that, in the event of a thermal battery cell event, there is a sufficiently long evacuation period within which the vehicle occupants can exit the vehicle safely.
Eine gattungsgemäße Hochvoltbatterie weist ein Batteriegehäuse auf, in dem Batteriezellen bzw. Zellmodule angeordnet sind. Bei einem thermischen Batteriezellen-Event treten Brandgas und andere Reaktionsprodukte aus einer der Batteriezellen in den Gehäuseinnenraum aus. Bei einem solchen thermischen Batteriezellen-Event ist eine thermische Propagation von Zelle zu Zelle zu verhindern. Eine solche thermische Propagation ergibt sich, wenn das aus der havarierten Batteriezelle austretende heiße Abgas über die benachbarten Batteriezellen geführt wird.A generic high-voltage battery has a battery housing in which battery cells or cell modules are arranged. During a thermal battery cell event, fire gas and other reaction products escape from one of the battery cells into the interior of the housing. In such a thermal battery cell event, thermal propagation from cell to cell must be prevented. Such thermal propagation occurs when the hot exhaust gas emerging from the damaged battery cell is routed over the neighboring battery cells.
Zur Vermeidung bzw. Hemmung einer solchen thermischen Propagation ist im Stand der Technik in einer Batteriegehäusewand ein Notentgasungs-Auslass ausgebildet, in dem zum Beispiel ein Druckausgleichselement eingesetzt ist. Im Falle eines thermischen Batteriezellen-Events erfolgt über das Druckausgleichselement eine Notentgasung. Der von dem Druckausgleichselement bereitstellbare freie Strömungsquerschnitt ist jedoch vergleichsweise klein, so dass sich die Notentgasung über eine entsprechend lange Zeitdauer erstreckt.In order to avoid or inhibit such a thermal propagation, an emergency degassing outlet is formed in the prior art in a battery housing wall, in which a pressure equalization element is used, for example. In the event of a thermal battery cell event, emergency degassing takes place via the pressure equalization element. However, the free flow cross section that can be provided by the pressure compensation element is comparatively small, so that the emergency degassing extends over a correspondingly long period of time.
Aus der
Die Aufgabe der Erfindung besteht darin, eine Hochvoltbatterie für ein elektrisch betriebenes Fahrzeug bereitzustellen, bei der eine im Vergleich zum Stand der Technik wirksamere Notentgasung im Falle eines thermischen Batteriezellenevents erfolgen kann.The object of the invention is to provide a high-voltage battery for an electrically operated vehicle in which emergency degassing can be more effective than in the prior art in the event of a thermal battery cell event.
Die Aufgabe ist durch die Merkmale des Anspruches 1 gelöst. Bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen offenbart.The object is solved by the features of claim 1. Preferred developments of the invention are disclosed in the dependent claims.
Gemäß dem kennzeichnenden Teil des Anspruches 1 ist im Batteriegehäuse zumindest ein zum Beispiel pyrotechnisch arbeitender Gasgenerator angeordnet. Im Falle eines thermischen Batteriezellen-Events erzeugt der Gasgenerator einen pneumatischen Druckstoß, mit dessen Hilfe ein Batteriegehäuse-Querschnitt freilegbar ist. Aus dem freigelegten Batteriegehäuse-Querschnitt kann das Brandgas nach batterieaußen strömen. Der vom Gasgenerator erzeugte Druckstoß kann so ausgelegt sein, dass es zu einer großflächigen Zerstörung bzw. Verlagerung eines Batteriegehäuseabschnittes kommt. Auf diese Weise wird ein entsprechend großer Strömungsquerschnitt bereitgestellt, aus dem Brandgas nach batterieaußen strömen kann, wodurch die Gefahr einer thermischen Propagation reduziert ist und die Notentgasung im Vergleich zum Stand der Technik beschleunigt ist.According to the characterizing part of claim 1, at least one pyrotechnically operating gas generator, for example, is arranged in the battery housing. In the event of a thermal battery cell event, the gas generator generates a pneumatic pressure surge, which can be used to expose a battery housing cross-section. The fire gas can flow out of the exposed battery housing cross-section to the outside of the battery. The pressure surge generated by the gas generator can be designed in such a way that a large-area destruction or displacement of a battery housing section occurs. In this way, a correspondingly large flow cross section is provided, from which fire gas can flow to the outside of the battery, as a result of which the risk of thermal propagation is reduced and emergency degassing is accelerated compared to the prior art.
In einer technischen Umsetzung kann der für die Notentgasung bereitgestellte Batteriegehäuse-Querschnitt im fehlerfreien Normalbetrieb ohne thermischen Batteriezellen-Event von einem Verschlusselement überdeckt sein. Bei Vorliegen eines thermischen Batteriezellen-Events kann das Verschlusselement mittels des Druckstoßes zerstört und/oder verlagert werden, wodurch der Batteriegehäuse-Querschnitt freigelegt wird.In a technical implementation, the battery housing cross-section provided for emergency degassing can be covered by a closure element in error-free normal operation without a thermal battery cell event. If a thermal battery cell event is present, the closure element can be destroyed and/or displaced by means of the pressure surge, as a result of which the battery housing cross section is exposed.
In einer ersten Ausführungsvariante kann der Batteriegehäuse-Querschnitt zumindest ein Notentgasungs-Auslass sein, der in einer Batteriegehäusewand ausgebildet ist. Der Notentgasungs-Auslass kann im Normalbetrieb von dem Verschlusselement überdeckt sein, etwa einem Druckausgleichselement oder einem Entgasungsventil. Mit Hilfe des vom Gasgenerator erzeugten Druckstoßes kann das Verschlusselement zerstört oder verlagert werden, um den Notentgasungs-Auslass komplett freizugeben.In a first embodiment variant, the battery housing cross-section can be at least one emergency degassing outlet, which is formed in a battery housing wall. During normal operation, the emergency degassing outlet can be covered by the closure element, for example a pressure equalization element or a degassing valve. With the help of the pressure surge generated by the gas generator, the closure element can be destroyed or relocated in order to completely release the emergency degassing outlet.
Das Batteriegehäuse kann aus einem Gehäuse-Unterteil, bestehend aus Gehäuseboden mit davon hochgezogenen Seitenwänden, ausgebildet sein. Die Seitenwände begrenzen in der Gehäusehochrichtung nach oben einen offenen Batteriegehäuse-Querschnitt. Zudem weist das Batteriegehäuse einen Gehäusedeckel auf, der als ein Verschlusselement den nach oben offenen Batteriegehäuse-Querschnitt überdeckt. Der Gasgenerator kann so im Gehäuseinneren des Batteriegehäuses positioniert sein, dass im Falle eines thermischen Batteriezellen-Events mittels des Druckstoßes der Batteriedeckel unter Freigabe eines Batteriegehäuse-Querschnitts zumindest teilweise vom Gehäuse-Unterteil abhebt.The battery housing can be formed from a lower housing part, consisting of a housing base with side walls pulled up from it. In the vertical direction of the housing, the side walls delimit an open battery housing cross-section at the top. In addition, the battery housing has a housing cover which, as a closure element, covers the cross section of the battery housing which is open at the top. The gas generator can be positioned inside the battery housing such that in the event of a thermal battery cell event, the pressure surge causes the battery cover to lift at least partially from the lower housing part, releasing a battery housing cross-section.
Die Hochvoltbatterie weist in gängiger Praxis eine Sensorik, zum Beispiel Temperatursensoren, auf, die mit einem Batterie-Steuergerät in Signalverbindung sind. Mit Hilfe des Batterie-Steuergeräts wird ein Batterie-Betriebszustand überwacht. Zudem kann das Batterie-Steuergerät auf der Grundlage der Sensorik das Vorliegen eines thermischen Batteriezellen-Events ermitteln. Bei Vorliegen eines solchen thermischen Batteriezellen-Events generiert das Batterie-Steuergerät ein Aktivierungssignal, mit dem der Gasgenerator angesteuert wird, um den Druckstoß zu erzeugen.In current practice, the high-voltage battery has a sensor system, for example temperature sensors, which are signal-connected to a battery control unit. A battery operating state is monitored with the aid of the battery control unit. In addition, the battery control unit can determine the presence of a thermal battery cell event on the basis of the sensors. Generated when such a battery cell thermal event occurs the battery control unit sends an activation signal, which activates the gas generator in order to generate the pressure surge.
Im Batteriegehäuse sind elektrische Komponenten über Hochvoltleiter miteinander verbunden. Beispielhaft sind die Zellpole der Batteriezellen über Zellverbinder miteinander elektrisch verschaltet. In einer bevorzugten Ausführungsvariante kann der Gasgenerator so ausgebildet sein, dass dessen Druckstoß in Doppelfunktion zusätzlich auch einen solchen Hochvoltleiter durchtrennt.In the battery housing, electrical components are connected to one another via high-voltage conductors. For example, the cell poles of the battery cells are electrically connected to one another via cell connectors. In a preferred embodiment variant, the gas generator can be designed in such a way that its pressure surge also cuts through such a high-voltage conductor in a dual function.
In einer Weiterbildung der Erfindung kann der Gasgenerator zudem einen flammenhemmenden Stoff enthalten. Bei Aktivierung des Gasgenerators kann der flammenhemmende Stoff mittels des Druckstoßes im Gehäuseinneren verteilt werden.In a development of the invention, the gas generator can also contain a flame-retardant substance. When the gas generator is activated, the flame-retardant substance can be distributed inside the housing by means of the pressure surge.
Die Hochvoltbatterie wird in einer Serienfertigung in Arbeitsstationen entlang einer Montagelinie fertiggestellt. Bevorzugt ist es, wenn der Gasgenerator erst am Ende der Montagelinie in das Batteriegehäuse eingesetzt wird. Auf diese Weise kann eine einfache Entnahme des Gasgenerators aus dem Batteriegehäuse (zum Beispiel im Kundendienstfall) gewährleistet werden.The high-voltage battery is completed in series production in workstations along an assembly line. It is preferred if the gas generator is only inserted into the battery housing at the end of the assembly line. In this way, a simple removal of the gas generator from the battery housing (for example in the case of customer service) can be guaranteed.
Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der beigefügten Figuren beschrieben.An exemplary embodiment of the invention is described below with reference to the accompanying figures.
Es zeigen:
-
1 in einer Seitenschnittdarstellung eine in einer Karosserie-Bodenstruktur eines elektrisch betriebenen Fahrzeugs eingebaute Hochvoltbatterie; -
2 die Hochvoltbatterie bei aktiviertem Gasgenerator; und -
3 eine Ansicht gemäß einem weiteren Ausführungsbeispiel der Erfindung.
-
1 in a side sectional view, a high-voltage battery installed in a body floor structure of an electrically operated vehicle; -
2 the high-voltage battery when the gas generator is activated; and -
3 a view according to another embodiment of the invention.
In der
Gemäß der
Innerhalb des Batteriegehäuses 7 sind Batteriezellenmodule 19 sowie eine angedeutete Überwachungssensorik 21 angeordnet, die in Signalverbindung mit einem elektronischen Batterie-Steuergerät 23 ist. Mit Hilfe des Batterie-Steuergeräts 23 wird ein Batterie-Betriebszustand überwacht und gegebenenfalls das Vorliegen eines thermischen Batteriezellen-Events T (
Wie aus der
Der Kern der Erfindung besteht in dem, im Gehäuseinneren angeordneten Gasgenerator 25. Sofern durch entsprechende Signale der Sensorik 21 im Batterie-Steuergerät 23 das Vorliegen eines thermischen Batteriezellen-Events T ermittelt ist, erzeugt das Batterie-Steuergerät 23 ein Aktivierungssignal y, mit dem der Gasgenerator 25 aktiviert wird, um einen Druckstoß D zu erzeugen. Der Druckstoß D ist so ausgelegt, dass der Gehäusedeckel 11 unter Zerstörung der Schraubverbindung 17 nach gehäuseoben abhebt. Auf diese wird ein Batteriegehäuse-Querschnitt 31 freigegeben, aus dem das in der havarierten Batteriezelle 37 erzeugte Brandgas G nach batterieaußen strömen kann. Alternativ und/oder zusätzlich kann mittels des Druckstoßes D auch das Druckausgleichelement 29 im Notentgasungs-Auslass 27 zerstört oder verlagert werden, um einen Batteriegehäuse-Querschnitt freizulegen, durch den das Brandgas G ausströmen kann.The essence of the invention is the
In der
BezugszeichenlisteReference List
- 11
- Schwellersills
- 33
- Fahrzeugbodenvehicle floor
- 55
- Hochvoltbatteriehigh-voltage battery
- 77
- Batteriegehäusebattery case
- 1111
- Gehäusedeckelhousing cover
- 1313
- Gehäusebodencaseback
- 1515
- Seitenwändeside walls
- 1919
- Zellmodulecell modules
- 2121
- Sensoriksensors
- 2323
- Batterie-Steuergerätbattery control unit
- 2525
- Gasgeneratorgas generator
- 2727
- Notentgasungs-AuslassEmergency degas outlet
- 2929
- Druckausgleichelementpressure compensation element
- 3131
- Batteriegehäuse-QuerschnittBattery case cross section
- 33, 3533, 35
- Zellpolecell poles
- 3737
- Batteriezellenbattery cells
- 3939
- Zellverbindercell connector
- yy
- Aktivierungssignalactivation signal
- DD
- pneumatischer Druckstoßpneumatic pressure surge
- GG
- Brandgasfire gas
- TT
- thermisches Eventthermal event
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent Literature Cited
- DE 102009020185 A1 [0005]DE 102009020185 A1 [0005]
- DE 4411289 A1 [0005]DE 4411289 A1 [0005]
Claims (8)
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DE102020216378.2A DE102020216378B4 (en) | 2020-12-21 | 2020-12-21 | High-voltage battery for an electrically powered vehicle |
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DE102020216378.2A DE102020216378B4 (en) | 2020-12-21 | 2020-12-21 | High-voltage battery for an electrically powered vehicle |
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DE102020216378A1 true DE102020216378A1 (en) | 2022-06-23 |
DE102020216378B4 DE102020216378B4 (en) | 2024-02-29 |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4411289A1 (en) | 1994-03-31 | 1995-10-05 | Varta Batterie | Multi-cell storage battery e.g for electric road vehicle |
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