DE102009046327A1 - Device for the electrical connection of an electric vehicle with a tapping point - Google Patents

Device for the electrical connection of an electric vehicle with a tapping point Download PDF

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Publication number
DE102009046327A1
DE102009046327A1 DE102009046327A DE102009046327A DE102009046327A1 DE 102009046327 A1 DE102009046327 A1 DE 102009046327A1 DE 102009046327 A DE102009046327 A DE 102009046327A DE 102009046327 A DE102009046327 A DE 102009046327A DE 102009046327 A1 DE102009046327 A1 DE 102009046327A1
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Germany
Prior art keywords
cable
charging
winding unit
drum
vehicle
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Pending
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DE102009046327A
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German (de)
Inventor
Rainer Ehlert
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Athos Holding GmbH
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ATHOS ELEKTROSYTEME GmbH
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Application filed by ATHOS ELEKTROSYTEME GmbH filed Critical ATHOS ELEKTROSYTEME GmbH
Priority to DE102009046327A priority Critical patent/DE102009046327A1/en
Priority to PCT/EP2010/066478 priority patent/WO2011054752A2/en
Publication of DE102009046327A1 publication Critical patent/DE102009046327A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
    • B65H75/42—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles
    • B65H75/425—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles attached to, or forming part of a vehicle, e.g. truck, trailer, vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
    • B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
    • B65H75/4407—Traversing devices; means for orderly arranging the material on the drum positively driven, e.g. by a transmission between the drum and the traversing device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
    • B65H75/4421—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting directly on the material
    • B65H75/4426—Stopping at the end of winding or unwinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/34—Handled filamentary material electric cords or electric power cables
    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung zum Herstellen einer elektrischen Verbindung zwischen einem Elektrofahrzeug (10) und einer stationären Stromzapfstelle (16) zum Laden eines fahrzeugseitigen Energiespeichers, mit einem Ladekabel (14) zur Abstandsüberbrückung zwischen der Stromzapfstelle (16) und dem in einer Ladeposition abstellbaren Elektrofahrzeug (10). Erfindungsgemäß wird vorgeschlagen, dass das Ladekabel (14) von einer in dem Fahrzeug (10) oder der Stromzapfstelle (16) fest eingebauten Kabelwickeleinheit (12) mit variabler Länge abziehbar ist.The invention relates to a device for establishing an electrical connection between an electric vehicle (10) and a stationary power tap (16) for charging an on-board energy storage device, with a charging cable (14) for bridging the distance between the power tap (16) and the electric vehicle that can be parked in a charging position (10). According to the invention, the charging cable (14) can be pulled off from a cable winding unit (12) of fixed length that is permanently installed in the vehicle (10) or the power tap (16).

Description

Die Erfindung betrifft eine Vorrichtung zum Herstellen einer elektrischen Verbindung zwischen einem Elektrofahrzeug und einer stationären Stromzapfstelle zum Laden eines fahrzeugseitigen Energiespeichers, mit einem Ladekabel zur Abstandsüberbrückung zwischen der Stromzapfstelle und dem in einer Ladeposition abstellbaren Elektrofahrzeug.The invention relates to a device for establishing an electrical connection between an electric vehicle and a stationary power tapping point for charging a vehicle-side energy storage, with a charging cable for distance bridging between the current tapping point and the parkable in a charging position electric vehicle.

Für elektrogetriebene Fahrzeuge sind so genannte Stromtankstellen vorgesehen, bei denen ein Elektrofahrzeug in einem gewissen flexiblen Abstand zu einer Ladesäule aufgestellt werden kann, um die Fahrzeugbatterie über eine Verbindungsleitung aufzuladen. Zu diesem Zweck ist es bekannt, im Fahrzeug ein loses Kabel mitzuführen, das dann fahrzeugseitig und säulenseitig eingesteckt werden muss.For electrically powered vehicles so-called charging stations are provided in which an electric vehicle can be placed at a certain flexible distance to a charging station to charge the vehicle battery via a connecting line. For this purpose, it is known to carry a loose cable in the vehicle, which then has to be plugged in on the vehicle side and on the column side.

Ausgehend hiervon besteht die Aufgabe darin, die Handhabung zu erleichtern und komfortabler zu gestalten und dabei auch eine erhöhte Sicherheit insbesondere gegen Beschädigung zu gewährleisten.Based on this, the task is to facilitate the handling and to make it more comfortable while also ensuring increased security, especially against damage.

Zur Lösung dieser Aufgabe wird die im Patentanspruch 1 angegebene Merkmalskombination vorgeschlagen. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.To solve this problem, the feature combination specified in claim 1 is proposed. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims.

Dementsprechend wird erfindungsgemäß vorgeschlagen, dass das Ladekabel von einer in dem Fahrzeug oder der Stromzapfstelle fest eingebauten Kabelwickeleinheit mit variabler Länge abziehbar ist. Dadurch ist auf einfache Weise gewährleistet, dass das Ladekabel griffbereit ist und in der Länge bedarfsgerecht zur Verfügung steht. Zudem kann der Ladevorgang und die Bedienung durch fahrzeugfeste oder stationäre, ggf. automatisch arbeitende Einbaukomponenten weiter verbessert werden.Accordingly, it is proposed according to the invention that the charging cable can be removed from a cable winding unit of variable length permanently installed in the vehicle or in the electricity tapping point. This ensures in a simple manner that the charging cable is within reach and in length is available as needed. In addition, the charging process and the operation by vehicle-mounted or stationary, possibly automatically working installation components can be further improved.

Vorteilhafterweise umfasst die Kabelwickeleinheit eine an einer feststehenden, vorzugsweise fahrzeugfesten Tragstruktur drehbar gelagerte Kabeltrommel, einen Drehantrieb für die Trommel und eine in der Trommel integrierte Stromübertragungseinrichtung für eine Anschlusskopplung des Ladekabels mit nicht bewegten Anschlussmitteln der Kabelwickeleinheit. Auf diese Weise kann bei variablem Kabelauszug eine feste Verdrahtung im Einbauzustand realisiert werden.Advantageously, the cable winding unit comprises a cable drum rotatably mounted on a fixed, preferably vehicle-fixed support structure, a rotary drive for the drum and a power transmission device integrated in the drum for a connection coupling of the charging cable with non-moving connection means of the cable winding unit. In this way, a fixed wiring in the installed state can be realized with variable cable extension.

In diesem Zusammenhang ist es vorteilhaft, wenn die Stromübertragungseinrichtung einen mit der Kabeltrommel mitdrehenden Kontaktring und einen radial oder axial an dem Kontaktring angreifenden Schleifkontakt aufweist. Alternativ ist es auch möglich, dass die Stromübertragungseinrichtung eine galvanische Anschlussverbindung zwischen dem Ladekabel und den Anschlussmitteln vorzugsweise in Form einer an ihren Federenden kontaktierten Spiralfeder aufweist.In this context, it is advantageous if the current transmission device has a co-rotating with the cable drum contact ring and a radially or axially engaging the contact ring sliding contact. Alternatively, it is also possible that the power transmission device has a galvanic connection connection between the charging cable and the connection means, preferably in the form of a contacted at their spring ends coil spring.

Um die Fahrzeugpositionierung zu erleichtern, sollte das Ladekabel mit einer Auszuglänge im Bereich zwischen 5 bis 10 m abziehbar sein.In order to facilitate the vehicle positioning, the charging cable should be removable with an extension length in the range between 5 to 10 m.

Eine weitere Verbesserung lässt sich dadurch erreichen, dass das Ladekabel mehrere parallele Leitungen zur Anpassung des Ladestroms aufweist. Um den Ladevorgang zu steuern, kann es vorteilhaft sein, wenn das Ladekabel neben den Ladestrom führenden Leitungen auch Signal- und/oder Datenleitungen enthält.A further improvement can be achieved in that the charging cable has a plurality of parallel lines for adjusting the charging current. In order to control the charging process, it can be advantageous if the charging cable also contains signal and / or data lines in addition to the charging current-carrying lines.

Um gefährliche Fehlfunktionen zu vermeiden, sollte die Kabelwickeleinheit eine Sicherheitseinrichtung aufweisen, welche den Ladestrom oder die Temperatur an dem Ladekabel überwacht und gegebenenfalls den Ladestrom unterbricht. Weiterhin ist es günstig, wenn die Kabelwickeleinheit ein Signal bereitstellt, mit dessen Hilfe der Fahrzeugbetrieb bei eingestecktem Ladekabel ausgeschlossen werden kann.In order to avoid dangerous malfunctions, the cable winding unit should have a safety device which monitors the charging current or the temperature at the charging cable and possibly interrupts the charging current. Furthermore, it is favorable if the cable winding unit provides a signal with the aid of which the vehicle operation can be excluded when the charging cable is plugged in.

Zur Erhöhung des Bedienkomforts ist es vorteilhaft, wenn die Kabelwickeleinheit einen Elektromotor als Drehantrieb aufweist, wobei der Elektromotor in die Trommel integriert oder außerhalb davon angeordnet und über Getriebemittel gekoppelt sein kann.To increase the ease of use, it is advantageous if the cable winding unit has an electric motor as a rotary drive, wherein the electric motor can be integrated into the drum or arranged outside thereof and coupled via transmission means.

In einer einfachen Ausführung ist es auch denkbar, die Kabelwickeleinheit eine beim Abziehen des Ladekabels spannbare Wickelfeder als Drehantrieb aufweist.In a simple embodiment, it is also conceivable that the cable winding unit has a tensionable when removing the charging cable coil spring as a rotary drive.

Vorteilhafterweise ist die Kabelwickeleinheit zum selbsttätigen Aufwickeln des Ladekabels über mechanische Auslösemittel wie eine Taste, Pedal oder Knopf oder durch Ziehen am Kabel ansteuerbar. Eine weitere Handhabungsverbesserung lässt sich dadurch erreichen, dass die Kabelwickeleinheit zum selbsttätigen Aufwickeln des Ladekabels über elektrische Auslösemittel gegebenenfalls auch ferngesteuert ansteuerbar ist. Hierbei ist es auch vorteilhaft, wenn die Kabelwickeleinheit eine elektrisch oder mechanisch betätigte Anzeige für die Länge des ausgezogenen oder noch aufgewickelten Ladekabels aufweist.Advantageously, the cable winding unit for automatic winding of the charging cable via mechanical release means such as a button, pedal or knob or by pulling on the cable can be controlled. A further improvement in handling can be achieved in that the cable winding unit for automatic winding of the charging cable via electrical tripping means optionally also remotely controlled. It is also advantageous if the cable winding unit has an electrically or mechanically operated display for the length of the extended or still wound charging cable.

Um Gefahren möglichst zu vermeiden, sollte die Kabelwickeleinheit eine Kontrolleinrichtung für eine regulierte Aufwickelgeschwindigkeit besitzen.To avoid dangers as much as possible, the cable winding unit should have a control device for a regulated winding speed.

Vorteilhaft ist es auch, wenn die Kabelwickeleinheit eine Sperre zur Festlegung einer Endposition, des Kabelauszugs aufweist.It is also advantageous if the cable winding unit has a lock for fixing an end position of the cable extension.

Eine weitere Verbesserung ergibt sich dadurch, dass die Kabelwickeleinheit einen in Richtung der Trommelachse beweglichen Oszillator für eingeordnetes Aufwickelbild des Ladekabels besitzt. A further improvement results from the fact that the cable winding unit has an oscillator, which is movable in the direction of the drum axis, for arranged winding-up of the charging cable.

Im Folgenden wird die Erfindung anhand eines in der Zeichnung in schematischer Weise dargestellten Ausführungsbeispiels näher erläutert. Es zeigenIn the following the invention will be explained in more detail with reference to an embodiment shown schematically in the drawing. Show it

1 ein Elektrofahrzeug mit einer Kabelwickeleinheit zur Verbindung eines Ladekabels mit einer Stromzapfstellein einer schaubildlichen Darstellung; 1 an electric vehicle with a cable winding unit for connecting a charging cable with a Stromzapfstelle in a diagrammatic representation;

2 die in einem Einbaugehäuse aufgenommene Kabelwickeleinheit in perspektivischer Ansicht; 2 the cable winding unit accommodated in a mounting housing in a perspective view;

3 die als Kabeltrommel ausgebildete Kabelwickeleinheit in perspektivischer Ansicht; 3 the cable winding unit designed as a cable drum in a perspective view;

4 eine weitere Ausführungsform einer Kabelwickeleinheit; 4 another embodiment of a cable winding unit;

5 eine Stromübertragungseinrichtung der Kabelwickeleinheit in einer perspektivischen Detaildarstellung; und 5 a power transmission device of the cable winding unit in a perspective detail view; and

6 eine Aufwickelbremse der Kabelwickeleinheit in Freigabe- und Bremsstellung. 6 a take-up brake of the cable winding unit in release and braking position.

Das in 1 dargestellte Elektrofahrzeug 10 lässt sich zum Aufladen einer nicht gezeigten Fahrzeugbatterie über eine fahrzeugfest eingebaute Kabelwickeleinheit 12 mittels ausziehbarem Ladekabel 14 mit einer Stromzapfstelle 16 elektrisch verbinden. Dabei kann das Fahrzeug 10 in gewissen Grenzen mit variablem Abstand zu der Stromzapfstelle 16 in einer Ladeposition abgestellt werden, wobei durch den reversiblen Kabelauszug eine einfache Handhabung gewährleistet ist.This in 1 illustrated electric vehicle 10 can be used to charge a vehicle battery, not shown, via a vehicle-mounted cable winding unit 12 by means of extendable charging cable 14 with a power tap 16 connect electrically. The vehicle can 10 within certain limits with variable distance to the tapping point 16 be parked in a loading position, which is ensured by the reversible cable drawer easy handling.

Wie auch aus 2 ersichtlich, kann die Kabelwickeleinheit 12 in einem kastenförmigen Einbaugehäuse 18 fest in das Fahrzeug 10 eingebaut sein, so dass die Gefahr von Verschmutzung oder Beschädigung reduziert wird. Dabei ist das Ladekabel 14 an seinem freien Ende mit einem Stecker 20 versehen und weist einen an eine Gehäusepartie anschlagenden Stopper 22 zum Begrenzen des Kabeleinzugs und/oder des Kabelauszugs auf. Zweckmäßig ist randseitig an der Gehäuseöffnung ein Schmutzabweiser 24 für das Ladekabel 14 angeordnet.As well as out 2 can be seen, the cable winding unit 12 in a box-shaped installation housing 18 firmly in the vehicle 10 be installed so that the risk of contamination or damage is reduced. Here is the charging cable 14 at its free end with a plug 20 provided and has a stoppered on a housing part stopper 22 for limiting the cable entry and / or the cable extension. Appropriately, at the edge of the housing opening a dirt deflector 24 for the charging cable 14 arranged.

Gemäß 3 weist die Kabelwickeleinheit 12 eine an einer Tragstruktur 26 drehbar gelagerte Kabeltrommel 28, einen Drehantrieb 30 für die Trommel und eine in der Trommel integrierte Stromübertragungseinrichtung 32 für den Anschluss des Ladekabels 14 auf.According to 3 indicates the cable winding unit 12 one on a support structure 26 rotatably mounted cable drum 28 , a rotary drive 30 for the drum and an integrated in the drum power transmission device 32 for connecting the charging cable 14 on.

Die Tragstruktur 26 kann gegebenenfalls ohne Einbaugehäuse raumfest im Fahrzeug 10 befestigt sein, so dass die Kabeltrommel 28 um ihre Zentralachse drehbar ist. Die Kabeltrommel ist dabei so dimensioniert, dass das Ladekabel 14 mit einer Auszuglänge von bis zu 10 m abziehbar und wieder aufwickelbar ist. Zu diesem Zweck ist der Drehantrieb in dem gezeigten Ausführungsbeispiel durch einen Elektromotor gebildet, der in seiner Drehrichtung entsprechend ansteuerbar ist und über ein Zahnradgetriebe 34 mit der Kabeltrommel 28 gekoppelt ist. Denkbar ist es auch, dass in einer einfacheren Ausführung eine beim Abziehen des Ladekabels 14 spannbare Wickelfeder als Drehantrieb vorgesehen ist. Wie es weiter unten näher erläutert wird, ist das bei der Trommeldrehung bewegte Ladekabel 14 über die Stromübertragungseinrichtung 32 mit dem drehfest gehaltenen Anschlusskabel 36 verbunden, welches über fahrzeugseitige Verbindungsmittel an die Batterie angeschlossen ist.The supporting structure 26 may optionally be room-safe in the vehicle without a housing 10 be attached so that the cable drum 28 is rotatable about its central axis. The cable drum is dimensioned so that the charging cable 14 With an extension length of up to 10 m removable and rewindable. For this purpose, the rotary drive is formed in the embodiment shown by an electric motor which is controlled according to its direction of rotation and a gear transmission 34 with the cable drum 28 is coupled. It is also conceivable that in a simpler design, a when removing the charging cable 14 tensionable coil spring is provided as a rotary drive. As will be explained in more detail below, the charging cable moved during the drum rotation is 14 over the power transmission device 32 with the non-rotatable connection cable 36 connected, which is connected via vehicle-side connecting means to the battery.

Die Kabel 14, 36 weisen mindestens zwei stromführende Ladeleitungen 38 auf. Durch zusätzliche parallele Ladeleitungen ist es möglich, den Ladestrom wahlweise höher zu schalten, so dass die Ladedauer entsprechend verkürzt wird. Neben den Ladeleitungen 38 und gegebenenfalls einer Masseverbindung 40 können auch nicht gezeigte Daten- bzw. Signalleitungen zur Steuerung des Ladevorgangs vorgesehen sein.The cables 14 . 36 have at least two live charging cables 38 on. By additional parallel charging lines, it is possible to switch the charging current either higher, so that the charging time is shortened accordingly. In addition to the charging lines 38 and optionally a ground connection 40 also data and signal lines, not shown, may be provided to control the charging process.

Wie in 4 veranschaulicht, kann die Kabelwickeleinheit einen in Richtung der Trommelachse auf einer Führung 42 beweglichen Oszillator 44 für ein geordnetes Aufwickelbild des Ladekabels 14 besitzen. Dies kann dadurch erreicht werden, dass der mit einem Durchbruch für das Ladekabel 14 versehene Oszillator 44 durch ein Steuerglied in einer Kulisse auf der rotierend angetriebenen Führung 42 zwangsgeführt ist (nicht gezeigt). Alternativ ist es auch möglich, dass der Oszillator beim Ablegen der Kabelwicklungen passiv verschiebbar ist.As in 4 illustrated, the cable winding unit can be in the direction of the drum axis on a guide 42 movable oscillator 44 for an orderly Aufwickelbild the charging cable 14 have. This can be achieved by having a breakthrough for the charging cable 14 provided oscillator 44 by a control member in a backdrop on the rotationally driven guide 42 is forced (not shown). Alternatively, it is also possible that the oscillator is passively displaceable when laying the cable windings.

Um den Wickelvorgang zu steuern, kann die Drehbewegung der Kabelwickeleinheit durch einen Riegel oder andere mechanische Auslösemittel gesperrt bzw. freigegeben werden. Denkbar ist auch eine Ansteuerung durch Ziehen am Kabel oder durch gegebenenfalls ferngesteuerte elektrische Auslösemittel. Bei einer vorgegebenen Aktuation, beispielsweise beim Ausstecken des Ladekabels könnte auch ein Aufwickelvorgang automatisch gestartet werden.In order to control the winding process, the rotational movement of the cable winding unit can be locked or released by a bolt or other mechanical release means. Also conceivable is a control by pulling on the cable or by optionally remotely controlled electrical release means. At a given Aktuation, for example, when unplugging the charging cable and a winding process could be started automatically.

Wie in 5 gezeigt, kann die Stromübertragungseinrichtung eine mit der Kabeltrommel 28 mitdrehende Kontaktscheibe 48 und an der Scheibe angreifende Schleifkontakte 50 zur Stromübertragung zwischen dem drehbaren Ladekabel 14 und dem fahrzeugfesten Anschlusskabel 36 aufweisen. Dabei kann die Stromabnahmewie gezeigt axial bezüglich der Drehachse erfolgen, oder gegebenenfalls auch radial, wobei auch Wälzkörper anstelle eines Schleifkontakts einsetzbar sind. Denkbar ist auch eine Stromübertragung mittels einer galvanischen Anschlussverbindung zwischen dem Ladekabel 14 und dem Anschlusskabel 36 beispielsweise durch eine an ihren Federenden kontaktierte Spiralfeder, die beim Kabelauszug spannbar ist.As in 5 As shown, the power transmission device may be one with the cable drum 28 co-rotating contact disc 48 and on the disc engaging sliding contacts 50 for power transmission between the rotatable charging cable 14 and the vehicle-fixed connection cable 36 exhibit. In this case, the current decrease as shown axially with respect to the axis of rotation, or possibly also radially, whereby rolling elements are used instead of a sliding contact. Also conceivable is a power transmission by means of a galvanic connection connection between the charging cable 14 and the connection cable 36 for example, by a contacted at their spring ends coil spring which can be tensioned at the cable extraction.

6 zeigt ein Beispiel für eine Kontrolleinrichtung 52 zum Regulieren der Aufwickelgeschwindigkeit, so dass das Ladekabel 14 gefahrlos eingezogen werden kann. Hierfür sind an der Trommel 28 zwei. Bremsklötze 54 über Langlöcher 56 radial begrenzt beweglich gelagert. Bei erhöhter Drehgeschwindigkeit bewirkt die Zentrifugalkraft eine Auslenkung der Bremsklötze 54 radial nach außen für einen Bremseingriff an einem Bremsring 58, wie es in 6 mit gestrichelten Linien dargestellt ist. 6 shows an example of a control device 52 to regulate the winding speed, so that the charging cable 14 can be safely collected. For this are on the drum 28 two. brake pads 54 over long holes 56 mounted radially limited movable. At an increased rotational speed, the centrifugal force causes a deflection of the brake pads 54 radially outward for a brake engagement on a brake ring 58 as it is in 6 shown with dashed lines.

Als weitere Schutzmaßnahme kann die Kabelwickeleinheit 12 eine Sicherheitseinrichtung aufweisen, welche den Ladestrom oder die Temperatur an dem Ladekabel 14 überwacht und gegebenenfalls den Ladestrom unterbricht.As a further protective measure, the cable winding unit 12 have a safety device which the charging current or the temperature at the charging cable 14 monitored and optionally interrupts the charging current.

Claims (11)

Vorrichtung zum Herstellen einer elektrischen Verbindung zwischen einem Elektrofahrzeug (10) und einer stationären Stromzapfstelle (16) zum Laden eines fahrzeugseitigen Energiespeichers, mit einem Ladekabel (14) zur Abstandsüberbrückung zwischen der Stromzapfstelle (16) und dem in einer Ladeposition abstellbaren Elektrofahrzeug (10), dadurch gekennzeichnet, dass das Ladekabel (14) von einer in dem Fahrzeug (10) oder der Stromzapfstelle (16) fest eingebauten Kabelwickeleinheit (12) mit variabler Länge abziehbar ist.Device for establishing an electrical connection between an electric vehicle ( 10 ) and a stationary power tapping point ( 16 ) for charging a vehicle-side energy storage, with a charging cable ( 14 ) for distance bridging between the tapping point ( 16 ) and the storeable in a loading position electric vehicle ( 10 ), characterized in that the charging cable ( 14 ) of one in the vehicle ( 10 ) or the electricity tapping point ( 16 ) fixed cable winding unit ( 12 ) is removable with variable length. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Kabelwickeleinheit (12) eine an einer feststehenden, vorzugsweise fahrzeugfesten Tragstruktur (26) drehbar gelagerte Kabeltrommel (28), einen Drehantrieb (30) für die Trommel und eine in der Trommel integrierte Stromübertragungseinrichtung (32) für eine Anschlusskopplung des Ladekabels (14) mit nicht bewegten Anschlussmitteln (36) der Kabelwickeleinheit (12) aufweist.Device according to claim 1, characterized in that the cable winding unit ( 12 ) one on a fixed, preferably vehicle-fixed support structure ( 26 ) rotatably mounted cable drum ( 28 ), a rotary drive ( 30 ) for the drum and an integrated in the drum power transmission device ( 32 ) for a connection coupling of the charging cable ( 14 ) with non-moving connection means ( 36 ) of the cable winding unit ( 12 ) having. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Stromübertragungseinrichtung (32) einen mit der Kabeltrommel (28) mitdrehenden Kontaktring (48) und einen radial oder axial an dem Kontaktring angreifenden Schleifkontakt (50) aufweist.Device according to Claim 2, characterized in that the current transmission device ( 32 ) one with the cable drum ( 28 ) co-rotating contact ring ( 48 ) and a radially or axially acting on the contact ring sliding contact ( 50 ) having. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Ladekabel (14) mehrere parallele Leitungen zur Anpassung des Ladestroms aufweist.Device according to one of claims 1 to 3, characterized in that the charging cable ( 14 ) has a plurality of parallel lines for adjusting the charging current. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Ladekabel (14) neben den Ladestrom führenden Leitungen auch Signal und/oder Datenleitungen enthält.Device according to one of claims 1 to 4, characterized in that the charging cable ( 14 ) also contains signal and / or data lines in addition to the charging current leading lines. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Kabelwickeleinheit (12) einen Elektromotor als Drehantrieb (30) aufweist, wobei der Elektromotor in die Trommel integriert ist oder außerhalb davon angeordnet und über Getriebemittel (34) gekoppelt ist.Device according to one of claims 1 to 5, characterized in that the cable winding unit ( 12 ) an electric motor as a rotary drive ( 30 ), wherein the electric motor is integrated into the drum or arranged outside thereof and via transmission means ( 34 ) is coupled. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Kabelwickeleinheit (12) eine beim Abziehen des Ladekabels (14) spannbare Wickelfeder als Drehantrieb (30) aufweist.Device according to one of claims 1 to 5, characterized in that the cable winding unit ( 12 ) when removing the charging cable ( 14 ) tensionable clock spring as a rotary drive ( 30 ) having. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Kabelwickeleinheit (12) zum selbsttätigen Aufwickeln des Ladekabels (14) über mechanische oder elektrische Auslösemittel (46) gegebenenfalls durch Ziehen am Kabel oder auch ferngesteuert ansteuerbar ist.Device according to one of claims 1 to 7, characterized in that the cable winding unit ( 12 ) for automatic winding of the charging cable ( 14 ) via mechanical or electrical release means ( 46 ) optionally by pulling on the cable or remotely controlled. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Kabelwickeleinheit (12) eine Kontrolleinrichtung (52) für eine regulierte Aufwickelgeschwindigkeit besitzt.Device according to one of claims 1 to 8, characterized in that the cable winding unit ( 12 ) a control device ( 52 ) for a regulated winding speed. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Kabelwickeleinheit (12) eine Sperre (22) zur Festlegung einer Endposition des Kabelauszugs und/oder Kabeleinzugs aufweist.Device according to one of claims 1 to 9, characterized in that the cable winding unit ( 12 ) a lock ( 22 ) to define an end position of the cable extension and / or cable entry. Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Kabelwickeleinheit (12) einen in Richtung der Trommelachse beweglichen Oszillator (44) für ein geordnetes Aufwickelbild des Ladekabels (14) besitzt.Device according to one of claims 1 to 10, characterized in that the cable winding unit ( 12 ) an oscillator movable in the direction of the drum axis ( 44 ) for an orderly Aufwickelbild the charging cable ( 14 ) owns.
DE102009046327A 2009-11-03 2009-11-03 Device for the electrical connection of an electric vehicle with a tapping point Pending DE102009046327A1 (en)

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PCT/EP2010/066478 WO2011054752A2 (en) 2009-11-03 2010-10-29 Device for electrically connecting an electric vehicle to a current tapping point

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