WO2004084329A1 - Motor vehicle battery - Google Patents

Motor vehicle battery Download PDF

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Publication number
WO2004084329A1
WO2004084329A1 PCT/EP2004/002760 EP2004002760W WO2004084329A1 WO 2004084329 A1 WO2004084329 A1 WO 2004084329A1 EP 2004002760 W EP2004002760 W EP 2004002760W WO 2004084329 A1 WO2004084329 A1 WO 2004084329A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor vehicle
cover
vehicle battery
electrically conductive
battery according
Prior art date
Application number
PCT/EP2004/002760
Other languages
German (de)
French (fr)
Inventor
Bernhard Stock
Egbert Lodowicks
Original Assignee
Audi 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 Audi Ag filed Critical Audi Ag
Priority to EP04721189A priority Critical patent/EP1611624A1/en
Publication of WO2004084329A1 publication Critical patent/WO2004084329A1/en

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Classifications

    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • 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

Definitions

  • the invention relates to a motor vehicle battery with a cover according to the preamble of claim 1, as is known from the unpublished DE 101 61 566.
  • Motor vehicle batteries are usually installed in a water box closed with a plastic cover, a removable plastic part being provided in the plastic cover for access to the motor vehicle battery.
  • the problem with such motor vehicle batteries is the electrostatic charging of the plastic cover, since the high voltage built up as a result of the electrostatic charging can be discharged in the direction of the negative pole of the motor vehicle battery. Particularly in the event of minor leaks in the motor vehicle battery, this discharge can take place inside the motor vehicle battery within the gas space located above the battery fluid, which can lead to an explosion of the motor vehicle battery.
  • the cover of the motor vehicle battery in the generic DE 101 61 566 is designed to be electrically conductive and is connected directly to the negative pole of the motor vehicle battery.
  • connection can be realized either by an insulating cable arranged between the negative pole of the motor vehicle battery and the cover or by a contact spring which is captively attached to the negative pole of the motor vehicle battery and makes electrical contact with the cover.
  • the invention has for its object to provide a motor vehicle battery in which protection against the consequences of electrostatic charging is made possible in a simple and inexpensive manner. This object is achieved by the features in the characterizing part of patent claim 1.
  • an electrically conductive contacting element is provided on the underside thereof for the force-locking contacting of the negative pole of the motor vehicle battery, ie the electrically conductive contacting element fastened to the cover of the motor vehicle battery is used for the non-positive, electrically conductive connection of the cover to the negative pole of the motor vehicle battery.
  • This electrically conductive contacting element can be designed as a spring-loaded contact tab protruding from the underside of the cover, which, as a result of the spring force, presses against the negative pole of the motor vehicle battery and preferably consists of the same material as the electrically conductive cover (for example, the contact tab is stamped out of the cover or formed by an injection molding process), or as a contacting screw formed on the underside of the cover and projecting from the underside of the cover, which is connected to the negative pole of the motor vehicle battery by pressing on it with a specific pretension or by screwing it to its pole terminal.
  • the electrically conductive cover of the motor vehicle battery can consist of metal or of electrically conductive plastic or of an electrically insulating plastic that is at least partially coated with an electrically conductive coating (for example with a glued-on metal foil or with a metallization or with an electrically conductive lacquer layer). or with an electrically conductive insert (e.g. with a contact tion of the negative pole of the motor vehicle battery partially exposed metal network) is provided.
  • the cover lies on the battery cover formed on the top of the motor vehicle battery, in particular the cover lies on the outer contour of the battery cover (i.e. on the protrusion of the battery cover located there) with a slight play.
  • a cover can be provided for motor vehicle batteries with different capacities and in particular different dimensions (different sizes) of the battery cover of the motor vehicle battery, for example. a cover made with a specific dimension, this cover can be adapted by subdivision to the respective dimension of the battery cover of the motor vehicle battery.
  • the area of the positive pole of the motor vehicle battery is not covered by the cover, in particular a recess in the cover is provided on the battery cover in the area of the positive pole of the motor vehicle battery.
  • the cover is connected to the battery cover in a form-fitting or non-positive manner by means of fastening means arranged on its outside (side surface), in particular by means of fastening clips. by means of fastening clips attached on the long side of the cover and engaging on the underside of the battery cover.
  • At least one rib is formed on the underside of the cover in the region of the electrically conductive contacting element, which rib serves as a stop when the cover is attached (put on or pushed on) to the battery cover of the motor vehicle battery.
  • FIG. 1 shows a plan view of the motor vehicle battery installed in the motor vehicle
  • FIG. 2 shows a sectional drawing of a partial area of the motor vehicle battery.
  • the motor vehicle battery 1 is, for example. arranged in the trunk of the motor vehicle below the trunk cover.
  • An electrically conductive cover 2 lies flush on the battery cover 7 forming the upper side of the motor vehicle battery 1.
  • This electrically conductive cover 2 is, for example. made of a warm air-resistant, electrically conductive plastic, e.g. made of chlorinated polypropylene (PPC) with an electrical conductivity in the range from 10 3 to 10 5 ⁇ "1 and is, for example, manufactured as an injection molded part.
  • PPC chlorinated polypropylene
  • the cover 2 can be used for motor vehicle batteries 1 with different capacities and thus different dimensions (width of the motor vehicle battery 1 e.g.
  • the cover 2 for example made as an injection molded part, can be subdivided at the dividing line 15 and the cover 2 can thus be individually adapted to the respective motor vehicle battery 1 a cover 2 with the dimensions length 347 mm, width 181 mm and thickness 1.5 mm in the longitudinal direction 12 of the cover 2 a dividing line 15 at 273 mm, so that a further, smaller cover 2 with the dimensions length 273 mm, width 181 mm and Thickness 1.5 mm can be manufactured
  • the cover 2 with the length of 347 mm is used, for example, for motor vehicle batteries 1 with a capacity of 95 Ah or 110 Ah, with almost the entire battery cover 7, with the exception of the positive pole 14 of the motor vehicle battery 1, being covered by the cover 2.
  • the cover 2 with the length of 273 mm is, for example. used for motor vehicle batteries 1 with a capacity of 70 Ah or 80 Ah, with approximately the entire battery cover 7, with the exception of the positive pole 14 of the motor vehicle battery
  • an example is on the underside 4. formed as an injection molded part from the electrically conductive plastic of the cover 2 contact tab 5, which presses the cover 2 on the battery cover 7 due to the elastic spring force non-positively against the negative pole 3 of the motor vehicle battery 1 and thus electrically conductively connects it to the electrically conductive cover 2 ,
  • Fastening means 10 designed as fastening clips are provided, for example.
  • two fastening clips 10 which clamp the battery cover 7 on the underside 11 of the battery cover 7.
  • a rib 13 is formed on the underside 4 of the cover 2 in the area of the contacting tab 5 and is used to adjust the cover 2 with respect to the longitudinal direction 12 of the motor vehicle battery 1.
  • this rib 13 acts as a stop and thereby ensures that the contacting tab 5 is positioned as desired in the region of the negative pole 3 of the motor vehicle battery 1 and thereby the negative pole 3 of the motor vehicle battery 1 contacted reliably and thus reliably discharges any electrostatic charges to ground.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention relates to a motor vehicle battery comprising a cover made of an electrically conductive material, said cover being connected to the negative pole of the motor vehicle battery. An electrically conductive contact element is formed on the under side of the cover for non-positive contact of the negative pole of the motor vehicle battery.

Description

Kraftfahrzeuαbatterie Kraftfahrzeuαbatterie
Die Erfindung betrifft eine Kraftfahrzeugbatterie mit einer Abdeckung gemäß dem Oberbegriff des Patentanspruchs 1 , wie sie aus der nicht vorveröffentlichten DE 101 61 566 bekannt ist.The invention relates to a motor vehicle battery with a cover according to the preamble of claim 1, as is known from the unpublished DE 101 61 566.
Kraftfahrzeugbatterien sind üblicherweise in einem mit einer Kunststoffabdeckung verschlossenen Wasserkasten eingebaut, wobei in der Kunststoffabdeckung für den Zugang zur Kraftfahrzeugbatterie ein herausnehmbares Kunststoff teil vorgesehen ist. Problematisch bei derartigen Kraftfahrzeugbatterien ist die elektrostatische Aufladung der Kunststoffabdeckung, da die infolge der elektrostatischen Aufladung aufgebaute Hochspannung in Richtung des Minuspols der Kraftfahrzeugbatterie entladen werden kann. Insbesondere bei geringfügigen Undichtigkeiten der Kraftfahrzeugbatterie kann diese Entladung im Inneren der Kraftfahrzeugbatte- rie innerhalb des sich über der Batterieflüssigkeit befindlichen Gasraums erfolgen, was zu einer Explosion der Kraftfahrzeugbatterie führen kann. Um derartige Explosionen der Kraftfahrzeugbatterie zu vermeiden, ist bei der gattungsgemäßen DE 101 61 566 die Abdeckung der Kraftfahrzeugbatterie elektrisch leitend ausgebildet und direkt mit dem Minuspol der Kraftfahrzeugbatterie verbunden. Diese Verbindung kann hierbei entweder durch ein zwischen dem Minuspol der Kraftfahrzeugbatterie und der Abdeckung angeordnetes isolierendes Kabel oder durch eine am Minuspol der Kraftfahrzeugbatterie unverlierbar angebrachte, elektrisch kontaktierend an der Abdeckung anliegende Kontaktfeder realisiert sein. Der Erfindung liegt die Aufgabe zugrunde, eine Kraftfahrzeugbatterie anzugeben, bei der ein Schutz vor den Folgen elektrostatischer Aufladung auf einfache Weise und kostengünstig ermöglicht wird. Diese Aufgabe wird erfindungsgemäß durch die Merkmale im Kennzeichen des Patentanspruchs 1 gelöst.Motor vehicle batteries are usually installed in a water box closed with a plastic cover, a removable plastic part being provided in the plastic cover for access to the motor vehicle battery. The problem with such motor vehicle batteries is the electrostatic charging of the plastic cover, since the high voltage built up as a result of the electrostatic charging can be discharged in the direction of the negative pole of the motor vehicle battery. Particularly in the event of minor leaks in the motor vehicle battery, this discharge can take place inside the motor vehicle battery within the gas space located above the battery fluid, which can lead to an explosion of the motor vehicle battery. In order to avoid such explosions of the motor vehicle battery, the cover of the motor vehicle battery in the generic DE 101 61 566 is designed to be electrically conductive and is connected directly to the negative pole of the motor vehicle battery. This connection can be realized either by an insulating cable arranged between the negative pole of the motor vehicle battery and the cover or by a contact spring which is captively attached to the negative pole of the motor vehicle battery and makes electrical contact with the cover. The invention has for its object to provide a motor vehicle battery in which protection against the consequences of electrostatic charging is made possible in a simple and inexpensive manner. This object is achieved by the features in the characterizing part of patent claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Bestandteil der weiteren Patentansprüche.Advantageous embodiments of the invention are part of the further claims.
Als Bestandteil der Abdeckung der Kraftfahrzeugbatterie ist auf deren Unterseite ein elektrisch leitfähiges Kontaktierungselement zur kraft- schiüssigen Kontaktierung des Minuspols der Kraftfahrzeugbatterie vorgesehen, d.h. das an der Abdeckung der Kraftfahrzeugbatterie befestigte elektrisch leitfähige Kontaktierungselement dient zur kraftschlüssigen e- lektrisch leitenden Verbindung der Abdeckung mit dem Minuspol der Kraftfahrzeugbatterie. Dieses elektrisch leitfähige Kontaktierungselement kann als von der Unterseite der Abdeckung abstehende gefederte Kon- taktierungslasche ausgebildet sein, die infolge der Federkraft gegen den Minuspol der Kraftfahrzeugbatterie drückt und vorzugsweise aus dem gleichen Material wie die elektrisch leitfähige Abdeckung besteht (bsp. ist die Kontaktierungslasche durch Ausstanzen aus der Abdeckung oder durch ein Spritzgussverfahren gebildet), oder als eine auf der Unterseite der Abdeckung ausgebildete, von der Unterseite der Abdeckung abstehende Kontaktierungsschraube, die mit dem Minuspol der Kraftfahrzeug- batterie durch Andrücken mit einer bestimmten Vorspannung oder durch Verschrauben mit dessen Polklemme verbunden ist. Die elektrisch leitfähige Abdeckung der Kraftfahrzeugbatterie kann aus Metall oder aus elektrisch leitfähigem Kunststoff bestehen oder aus einem elektrisch isolierenden Kunststoff, der zumindest partiell mit einer elekt- risch leitfähigen Beschichtung (bsp. mit einer aufgeklebten Metallfolie oder mit einer Metallisierung oder mit einer elektrisch leitfähigen Lackschicht) oder mit einer elektrisch leitfähigen Einlage (bsp. mit einem zur Kontaktie- rung des Minuspols der Kraftfahrzeugbatterie partiell frei liegenden Metallnetz) versehen ist.As part of the cover of the motor vehicle battery, an electrically conductive contacting element is provided on the underside thereof for the force-locking contacting of the negative pole of the motor vehicle battery, ie the electrically conductive contacting element fastened to the cover of the motor vehicle battery is used for the non-positive, electrically conductive connection of the cover to the negative pole of the motor vehicle battery. This electrically conductive contacting element can be designed as a spring-loaded contact tab protruding from the underside of the cover, which, as a result of the spring force, presses against the negative pole of the motor vehicle battery and preferably consists of the same material as the electrically conductive cover (for example, the contact tab is stamped out of the cover or formed by an injection molding process), or as a contacting screw formed on the underside of the cover and projecting from the underside of the cover, which is connected to the negative pole of the motor vehicle battery by pressing on it with a specific pretension or by screwing it to its pole terminal. The electrically conductive cover of the motor vehicle battery can consist of metal or of electrically conductive plastic or of an electrically insulating plastic that is at least partially coated with an electrically conductive coating (for example with a glued-on metal foil or with a metallization or with an electrically conductive lacquer layer). or with an electrically conductive insert (e.g. with a contact tion of the negative pole of the motor vehicle battery partially exposed metal network) is provided.
Die Abdeckung liegt auf dem auf der Oberseite der Kraftfahrzeugbatterie ausgebildeten Batteriedeckel auf, insbesondere liegt die Abdeckung an der Außenkontur des Batteriedeckels (d.h. auf dem sich dort befindlichen Überstand des Batteriedeckels) mit leichtem Spiel auf. Eine Abdeckung kann hierbei für Kraftfahrzeugbatterien mit unterschiedlicher Kapazität und insbesondere unterschiedlicher Abmessung (unterschiedlicher Größe) des Batteriedeckels der Kraftfahrzeugbatterie vorgesehen werden, bsp. kann eine mit bestimmter Abmessung angefertigte Abdeckung diese Abdeckung durch Unterteilung an die jeweilige Abmessung des Batteriedeckels der Kraftfahrzeugbatterie angepasst werden. Der Bereich des Pluspols der Kraftfahrzeugbatterie ist hierbei nicht von der Abdeckung bedeckt, insbesondere ist auf dem Batteriedeckel im Bereich des Pluspols der Kraftfahr- zeugbatterie eine Aussparung in der Abdeckung vorgesehen.The cover lies on the battery cover formed on the top of the motor vehicle battery, in particular the cover lies on the outer contour of the battery cover (i.e. on the protrusion of the battery cover located there) with a slight play. A cover can be provided for motor vehicle batteries with different capacities and in particular different dimensions (different sizes) of the battery cover of the motor vehicle battery, for example. a cover made with a specific dimension, this cover can be adapted by subdivision to the respective dimension of the battery cover of the motor vehicle battery. The area of the positive pole of the motor vehicle battery is not covered by the cover, in particular a recess in the cover is provided on the battery cover in the area of the positive pole of the motor vehicle battery.
Die Abdeckung ist durch an ihrer Außenseite (Seitenfläche) angeordnete, insbesondere durch als Befestigungsklammern ausgebildete Befestigungsmittel, mit dem Batteriedeckel formschlüssig oder kraftschlüssig verbunden, bsp. durch auf der Längsseite der Abdeckung angebrachte, auf der Unterseite des Batteriedeckels eingreifende Befestigungsklammern.The cover is connected to the battery cover in a form-fitting or non-positive manner by means of fastening means arranged on its outside (side surface), in particular by means of fastening clips. by means of fastening clips attached on the long side of the cover and engaging on the underside of the battery cover.
Zur Justierung der Abdeckung bezüglich der Längsachse der Kraftfahrzeugbatterie ist auf der Unterseite der Abdeckung im Bereich des elektrisch leitfähigen Kontaktierungselements mindestens eine Rippe ausgebildet, die als Anschlag beim Aufbringen (Auflegen oder Aufschieben) der Abdeckung auf den Batteriedeckel der Kraftfahrzeugbatterie dient.To adjust the cover with respect to the longitudinal axis of the motor vehicle battery, at least one rib is formed on the underside of the cover in the region of the electrically conductive contacting element, which rib serves as a stop when the cover is attached (put on or pushed on) to the battery cover of the motor vehicle battery.
Infolge der elektrisch leitfähigen Ausbildung der Abdeckung der Kraftfahrzeugbatterie und der auf einfache Art und Weise und kostengünstig realisierten elektrisch leitenden Verbindung zum Minuspol der Kraftfahrzeug- batterie können sich bei einer im Kraftfahrzeug eingebauten Kraftfahrzeugbatterie keine nennenswerten elektrostatischen Aufladungen bilden; ggf. vorhandene elektrostatische Aufladungen werden zum mit Masse verbundenen Minuspol der Kraftfahrzeugbatterie entladen und nicht über Undichtigkeiten in den Gasraum der Kraftfahrzeugbatterie eingeleitet, d.h. es besteht keine Gefahr von Explosionen der Kraftfahrzeugbatterie.As a result of the electrically conductive design of the cover of the motor vehicle battery and the electrically conductive connection to the negative pole of the motor vehicle battery which is implemented in a simple and cost-effective manner, no significant electrostatic charges can form in a motor vehicle battery installed in the motor vehicle; any existing electrostatic charges become grounded discharge connected negative pole of the motor vehicle battery and not introduced into the gas compartment of the motor vehicle battery via leaks, ie there is no risk of explosions of the motor vehicle battery.
Im Zusammenhang mit der Zeichnung (Figuren 1 und 2) soll ein Ausführungsbeispiel der Erfindung erläutert werden. Hierbei zeigen:In connection with the drawing (Figures 1 and 2) an embodiment of the invention will be explained. Here show:
Fig. 1 eine Draufsicht auf die im Kraftfahrzeug eingebaute Kraftfahrzeugbatterie, Fig.2 eine Schnittzeichnung eines Teilbereichs der Kraftfahrzeugbatterie.1 shows a plan view of the motor vehicle battery installed in the motor vehicle, FIG. 2 shows a sectional drawing of a partial area of the motor vehicle battery.
Die Kraftfahrzeugbatterie 1 ist bsp. im Kofferraum des Kraftfahrzeugs unterhalb der Kofferraumabdeckung angeordnet. Auf dem die Oberseite der Kraftfahrzeugbatterie 1 bildenden Batteriedeckel 7 liegt eine elektrisch leitfähige Abdeckung 2 bündig auf. Diese elektrisch leitfähige Abdeckung 2 besteht bsp. aus einem warmluftbeständigen, elektrisch leitfähigen Kunststoff, bsp. aus chloriertem Polypropylen (PPC) mit einer elektrischen Leitfähigkeit im Bereich von 103 bis 105 Ω"1 und ist bsp. als Spritzgussteil gefertigt. Die Abdeckung 2 kann für Kraftfahrzeugbatterien 1 mit unterschiedlicher Kapazität und damit unterschiedlichen Abmessungen (Breite der Kraftfahrzeugbatterie 1 bsp. 175 mm) verwendet werden; zur Anpassung der Abdeckung 2 an die jeweilige Kraftfahrzeugbatterie 1 kann die bsp. als Spritzgussteil gefertigte Abdeckung 2 an der Trennlinie 15 unter- teilt werden und so die Abdeckung 2 individuell an die jeweilige Kraftfahrzeugbatterie 1 angepasst werden. Bsp. weist eine Abdeckung 2 mit den Abmessungen Länge 347 mm, Breite 181 mm und Dicke 1.5 mm in Längsrichtung 12 der Abdeckung 2 eine Trennlinie 15 bei 273 mm auf, so dass eine weitere, kleinere Abdeckung 2 mit den Abmessungen Länge 273 mm, Breite 181 mm und Dicke 1.5 mm gefertigt werden kann. Die Abdeckung 2 mit der Länge von 347 mm wird bsp. für Kraftfahrzeugbatterien 1 mit einer Kapazität von 95 Ah oder 110 Ah verwendet, wobei annähernd der gesamte Batteriedeckel 7 mit Ausnahme des Pluspols 14 der Kraftfahrzeugbatterie 1 von der Abdeckung 2 bedeckt ist. Die Abdeckung 2 mit der Länge von 273 mm wird bsp. für Kraftfahrzeugbatterien 1 mit einer Kapazität von 70 Ah oder 80 Ah verwendet, wobei annähernd der gesamte Batteriedeckel 7 mit Ausnahme des Pluspols 14 der Kraftfahrzeugbatterie 1 von der Abdeckung 2 bedeckt ist.The motor vehicle battery 1 is, for example. arranged in the trunk of the motor vehicle below the trunk cover. An electrically conductive cover 2 lies flush on the battery cover 7 forming the upper side of the motor vehicle battery 1. This electrically conductive cover 2 is, for example. made of a warm air-resistant, electrically conductive plastic, e.g. made of chlorinated polypropylene (PPC) with an electrical conductivity in the range from 10 3 to 10 5 Ω "1 and is, for example, manufactured as an injection molded part. The cover 2 can be used for motor vehicle batteries 1 with different capacities and thus different dimensions (width of the motor vehicle battery 1 e.g. 175 mm) can be used, in order to adapt the cover 2 to the respective motor vehicle battery 1, the cover 2, for example made as an injection molded part, can be subdivided at the dividing line 15 and the cover 2 can thus be individually adapted to the respective motor vehicle battery 1 a cover 2 with the dimensions length 347 mm, width 181 mm and thickness 1.5 mm in the longitudinal direction 12 of the cover 2 a dividing line 15 at 273 mm, so that a further, smaller cover 2 with the dimensions length 273 mm, width 181 mm and Thickness 1.5 mm can be manufactured The cover 2 with the length of 347 mm is used, for example, for motor vehicle batteries 1 with a capacity of 95 Ah or 110 Ah, with almost the entire battery cover 7, with the exception of the positive pole 14 of the motor vehicle battery 1, being covered by the cover 2. The cover 2 with the length of 273 mm is, for example. used for motor vehicle batteries 1 with a capacity of 70 Ah or 80 Ah, with approximately the entire battery cover 7, with the exception of the positive pole 14 of the motor vehicle battery 1, being covered by the cover 2.
Im Randbereich 16 der Abdeckung 2 ist an der Unterseite 4 eine bsp. als Spritzgussteil aus dem elektrisch leitfähigen Kunststoff der Abdeckung 2 gefertigte Kontaktierungslasche 5 ausgebildet, die beim Aufbringen der Abdeckung 2 auf den Batteriedeckel 7 aufgrund der elastischen Federwirkung kraftschlüssig gegen den Minuspol 3 der Kraftfahrzeugbatterie 1 drückt und diesen somit elektrisch leitend mit der elektrisch leitfähigen Abdeckung 2 verbindet. Zur Fixierung der Abdeckung 2 mit der Kraftfahr- zeugbatterie 1 sind auf der Längsseite 9 der Abdeckung 2 bsp. als Befestigungsklammern ausgebildete Befestigungsmittel 10 vorgesehen, bsp. auf jeder Längsseite 9 der Abdeckung 2 zwei Befestigungsklammern 10, die auf der Unterseite 11 des Batteriedeckels 7 den Batteriedeckel 7 klammern. Weiterhin ist auf der Unterseite 4 der Abdeckung 2 im Bereich der Kontaktierungslasche 5 eine Rippe 13 ausgebildet, die zur Justierung der Abdeckung 2 bezüglich der Längsrichtung 12 der Kraftfahrzeugbatterie 1 dient. Beim Aufbringen (Auflegen bzw. Aufschieben) der Abdeckung 2 auf den Batteriedeckel 7 wirkt diese Rippe 13 als Anschlag und gewährleistet hier- durch, dass die Kontaktierungslasche 5 wie gewünscht im Bereich des Minuspols 3 der Kraftfahrzeugbatterie 1 positioniert ist und hierdurch den Minuspol 3 der Kraftfahrzeugbatterie 1 zuverlässig kontaktiert und somit ggf. vorhandene elektrostatische Aufladungen zuverlässig nach Masse ableitet. In the edge region 16 of the cover 2, an example is on the underside 4. formed as an injection molded part from the electrically conductive plastic of the cover 2 contact tab 5, which presses the cover 2 on the battery cover 7 due to the elastic spring force non-positively against the negative pole 3 of the motor vehicle battery 1 and thus electrically conductively connects it to the electrically conductive cover 2 , To fix the cover 2 with the motor vehicle battery 1, for example on the long side 9 of the cover 2. Fastening means 10 designed as fastening clips are provided, for example. On each long side 9 of the cover 2, two fastening clips 10 which clamp the battery cover 7 on the underside 11 of the battery cover 7. Furthermore, a rib 13 is formed on the underside 4 of the cover 2 in the area of the contacting tab 5 and is used to adjust the cover 2 with respect to the longitudinal direction 12 of the motor vehicle battery 1. When the cover 2 is applied (put on or pushed on) onto the battery cover 7, this rib 13 acts as a stop and thereby ensures that the contacting tab 5 is positioned as desired in the region of the negative pole 3 of the motor vehicle battery 1 and thereby the negative pole 3 of the motor vehicle battery 1 contacted reliably and thus reliably discharges any electrostatic charges to ground.

Claims

Patentansprüche claims
1. Kraftfahrzeugbatterie (1) mit einer mit dem Minuspol (3) der Kraftfahrzeugbatterie (1) verbundenen Abdeckung (2) aus elektrisch leitfähigem Material, dadurch gekennzeichnet, dass auf der Unterseite (4) der Abdeckung (2) ein elektrisch leitfähiges Kontaktierungselement (5) zur kraftschlüs- sigen Kontaktierung des Minuspols (3) der Kraftfahrzeugbatterie (1) ausgebildet ist.1. Motor vehicle battery (1) with a to the negative pole (3) of the motor vehicle battery (1) connected cover (2) made of electrically conductive material, characterized in that on the underside (4) of the cover (2) an electrically conductive contacting element (5 ) is designed for non-positive contacting of the negative pole (3) of the motor vehicle battery (1).
2. Kraftfahrzeugbatterie nach Anspruch 1 , dadurch gekennzeichnet, dass als elektrisch leitfähiges Kontaktierungselement (5) eine von der Un- terseite (4) der Abdeckung (2) abstehende gefederte Kontaktierungslasche vorgesehen ist.2. Motor vehicle battery according to claim 1, characterized in that a spring-loaded contacting tab projecting from the underside (4) of the cover (2) is provided as the electrically conductive contacting element (5).
3. Kraftfahrzeugbatterie nach Anspruch 2, dadurch gekennzeichnet, dass die gefederte Kontaktierungslasche (5) aus dem gleichen Material wie die Abdeckung (2) besteht.3. Motor vehicle battery according to claim 2, characterized in that the spring-loaded contact tab (5) consists of the same material as the cover (2).
4. Kraftfahrzeugbatterie nach Anspruch 1 , dadurch gekennzeichnet, dass als elektrisch leitfähiges Kontaktierungselement (5) eine von der Unterseite (4) der Abdeckung (2) abstehende Kontaktierungsschraube vorgesehen ist.4. Motor vehicle battery according to claim 1, characterized in that as the electrically conductive contacting element (5) from the underside (4) of the cover (2) projecting screw is provided.
5. Kraftfahrzeugbatterie nach Anspruch 4, dadurch gekennzeichnet, dass die Kontaktierungsschraube durch Anpressen mit dem Minuspol (3) der Kraftfahrzeugbatterie (1 ) verbunden ist.5. Motor vehicle battery according to claim 4, characterized in that the contacting screw is connected by pressing with the negative pole (3) of the motor vehicle battery (1).
6. Kraftfahrzeugbatterie nach Anspruch 4, dadurch gekennzeichnet, dass die Kontaktierungsschraube mit der Polklemme (6) des Minuspols (3) der Kraftfahrzeugbatterie (1) verschraubt ist. 6. Motor vehicle battery according to claim 4, characterized in that the contacting screw with the pole terminal (6) of the negative pole (3) of the motor vehicle battery (1) is screwed.
7. Kraftfahrzeugbatterie nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Abdeckung (2) aus elektrisch leitfähigem Kunststoff besteht.7. Motor vehicle battery according to one of claims 1 to 6, characterized in that the cover (2) consists of electrically conductive plastic.
8. Kraftfahrzeugbatterie nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Abdeckung (2) aus elektrisch isolierendem Kunststoff besteht, der zumindest partiell eine elektrisch leitfähige Beschichtung oder eine elektrisch leitfähige Einlage aufweist.8. Motor vehicle battery according to one of claims 1 to 6, characterized in that the cover (2) consists of electrically insulating plastic which at least partially has an electrically conductive coating or an electrically conductive insert.
9. Kraftfahrzeugbatterie nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Abdeckung (2) aus Metall besteht.9. Motor vehicle battery according to one of claims 1 to 6, characterized in that the cover (2) consists of metal.
10. Kraftfahrzeugbatterie nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Abdeckung (2) an der Außenkontur (8) des Batteriedeckels (7) mit geringem Spiel aufliegt.10. Motor vehicle battery according to one of claims 1 to 9, characterized in that the cover (2) on the outer contour (8) of the battery cover (7) rests with little play.
11. Kraftfahrzeugbatterie nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Abdeckung (2) durch an der Längsseite (9) der Abdeckung (2) angeordnete Befestigungsmittel (10) formschlüssig o- der kraftschlüssig mit der Unterseite (4) des Batteriedeckels (7) der11. Motor vehicle battery according to one of claims 1 to 10, characterized in that the cover (2) by on the longitudinal side (9) of the cover (2) arranged fastening means (10) positively or non-positively with the underside (4) of the battery cover (7) the
Kraftfahrzeugbatterie (1) verbunden ist.Motor vehicle battery (1) is connected.
12. Kraftfahrzeugbatterie nach Anspruch 11 , dadurch gekennzeichnet, dass als Befestigungsmittel (10) Befestigungsklammern vorgesehen sind.12. Motor vehicle battery according to claim 11, characterized in that fastening clips are provided as fastening means (10).
13. Kraftfahrzeugbatterie nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass zur Justierung der Abdeckung (2) bezüglich der Längsrichtung (12) der Kraftfahrzeugbatterie (1) auf der Unterseite (4) der Abdeckung (2) im Bereich des Kontaktierungselements (5) mindestens eine Rippe (13) ausgebildet ist.13. Motor vehicle battery according to one of claims 1 to 12, characterized in that for adjusting the cover (2) with respect to the longitudinal direction (12) of the motor vehicle battery (1) on the underside (4) of the cover (2) in the region of the contacting element (5 ) at least one rib (13) is formed.
14. Kraftfahrzeugbatterie nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass der Bereich des Pluspols (14) der Kraftfahrzeug- batterie (1 ) nicht von der Abdeckung (2) bedeckt ist. 14. Motor vehicle battery according to one of claims 1 to 13, characterized in that the region of the positive pole (14) of the motor vehicle battery (1) is not covered by the cover (2).
PCT/EP2004/002760 2003-03-21 2004-03-17 Motor vehicle battery WO2004084329A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04721189A EP1611624A1 (en) 2003-03-21 2004-03-17 Motor vehicle battery

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DE10312579A DE10312579B4 (en) 2003-03-21 2003-03-21 Motor vehicle battery
DE10312579.5 2003-03-21

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WO (1) WO2004084329A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984809B1 (en) * 2011-12-23 2014-06-13 Valeo Systemes Thermiques DEVICE FOR HEATING AND / OR AIR CONDITIONING FOR A MOTOR VEHICLE.

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EP0508248A1 (en) * 1991-03-30 1992-10-14 Audi Ag Device for positioning and fixing of a starter battery
FR2681981A1 (en) * 1991-10-01 1993-04-02 Baroclem Sa Battery cover
DE20204964U1 (en) * 2001-12-14 2002-06-20 Audi Ag Explosion-proof battery cover for motor vehicles

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US4160857A (en) * 1978-02-16 1979-07-10 Codman & Shurtleff, Inc. Canister and removable battery pack unit therefor
DE19726742B4 (en) * 1997-06-24 2007-06-06 Vb Autobatterie Gmbh & Co. Kgaa Method for producing a battery cover, accumulator cover and accumulator
DE19832929C1 (en) * 1998-07-22 2000-01-20 Daimler Chrysler Ag Apparatus for protecting vehicle starter batteries from electrostatic charges

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
EP0508248A1 (en) * 1991-03-30 1992-10-14 Audi Ag Device for positioning and fixing of a starter battery
FR2681981A1 (en) * 1991-10-01 1993-04-02 Baroclem Sa Battery cover
DE20204964U1 (en) * 2001-12-14 2002-06-20 Audi Ag Explosion-proof battery cover for motor vehicles
DE10161566C1 (en) * 2001-12-14 2003-02-06 Audi Ag Explosion protected cover for road vehicle batteries has ground connection

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EP1611624A1 (en) 2006-01-04
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