WO2011054854A1 - Plug-type charging system - Google Patents

Plug-type charging system Download PDF

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Publication number
WO2011054854A1
WO2011054854A1 PCT/EP2010/066720 EP2010066720W WO2011054854A1 WO 2011054854 A1 WO2011054854 A1 WO 2011054854A1 EP 2010066720 W EP2010066720 W EP 2010066720W WO 2011054854 A1 WO2011054854 A1 WO 2011054854A1
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WO
WIPO (PCT)
Prior art keywords
charging
sensor
signal
plug system
charging plug
Prior art date
Application number
PCT/EP2010/066720
Other languages
German (de)
French (fr)
Inventor
Kurt Standke
Original Assignee
Rema Lipprandt Gmbh & Co. Kg
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 Rema Lipprandt Gmbh & Co. Kg filed Critical Rema Lipprandt Gmbh & Co. Kg
Publication of WO2011054854A1 publication Critical patent/WO2011054854A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • 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
    • B60L53/16—Connectors, e.g. plugs or sockets, 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/30—Preventing theft during charging
    • B60L2270/32—Preventing theft during charging of electricity
    • 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/30—Preventing theft during charging
    • B60L2270/34—Preventing theft during charging of parts
    • 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
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the invention relates to a charging plug system, in particular for electric vehicles.
  • a charging plug system in particular for electric vehicles.
  • the invention has set itself the task of creating a charging plug system, which provides the said safety function particularly safe and comfortable.
  • the charging plug system according to the invention is particularly suitable for the charging of electric vehicles, such as electric cars. It comprises a charging device-side connector part (plug), as well as a vehicle-side connector part (socket).
  • the charging plug system also includes at least one sensor. This at least one sensor emits a signal when a human Lich body part, in particular a hand, the charging connector system approaches and / or when a human body part touches the charging system. As a result, a prerequisite is created that the charging connector is de-energized, as soon as and as long as it is touched by a human body part, in particular the hand, whereby a connection or disconnection under load is avoided.
  • a mechanical locking of the connector parts is provided.
  • This lock preferably comprises a pivotable lever with hooks, or latching nose, as well as a behind-reachable projection.
  • the lever is preferably pivotable about an axis extending transversely to its longitudinal axis.
  • a mechanical trigger is provided on the lever.
  • the lever is preferably provided on the plug side.
  • the at least one sensor outputs a signal when a human body part approaches and / or touches certain components of the charging plug system.
  • the particular components comprise the gripping portion of the connector where it is typically contacted to connect or disconnect the connector. It is conceivable that the particular components include areas that are required to contact a locking mechanism.
  • only a single sensor is provided.
  • several, most preferably several different types of sensors are provided.
  • a plurality of sensors are provided and the sensors are arranged at different locations of the charging plug system. In this way, a particularly high reliability can be achieved.
  • sensors are provided which detect heat radiation, temperature, humidity, pressure, reflected sound, reflected light, other electromagnetic radiation, acceleration or the like.
  • the sensors can work according to a wide variety of measuring principles.
  • the at least one sensor operates via the magnetic or the electric field. In one embodiment, it is provided as an inductive sensor.
  • the at least one sensor is a capacitive sensor. It has been shown that with this sensor type, the requirements to be met can be met particularly well. For example, this sensor type can be arranged particularly well under a non-metallic insulation layer.
  • a signal evaluation device is provided.
  • the signal evaluation device preferably evaluates the impedance change of the sensor.
  • the signal evaluation device preferably outputs a signal as a function of the sensor signal to a charging and control unit for switching a charging current.
  • the signal evaluation device in response to the sensor signal, a connection signal to a charging and control unit for connecting a charging current.
  • the start-up function is performed by another device and the signal evaluation is preferably in response to the sensor signal exclusively a shutdown signal to a charging and control unit for switching off a charging current.
  • sensors these may be provided individually. Preferably, however, several sensors are combined to form at least one multi-sensor pad.
  • the at least one sensor is preferably provided below an insulating surface.
  • At least one sensor is preferably provided below an insulating surface.
  • a power supply of the charging system is provided.
  • the power supply can be done by the charging device side and / or the vehicle side and / or an internal energy storage.
  • the power supply preferably takes place through the charging device side, since in this case it is also possible for the signal evaluation device to switch on the charging current without the need for an internal energy store.
  • the at least one sensor is provided in the charger side connector part (plug).
  • At least one sensor operating via the magnetic or electric field preferably a capacitive sensor and at least one pressure sensor
  • the signal evaluation device preferably sends a signal to a charging and control unit for switching a charging current only when the sensor operating via the magnetic or electric field and the pressure sensor emit a signal.
  • Fig. 1 is a partially sectioned side view of a plug of the charging plug system according to the invention
  • Fig. 2 is a schematic representation of a capacitive sensor with block diagram.
  • Fig. 1 shows a sectional side view of the charging device side connector part, so the connector 1 of the charging system according to the invention.
  • the electrical contacts and lines that conduct the charging current are from for clarity not shown.
  • the plug 1 has a locking mechanism 8, which comprises a lever 9, which has a latching lug 10.
  • the lever 9 is spring-loaded and the locking lug 10 engages behind a projection of the outlet, not shown, when the connector is closed.
  • the lock can be released by pressing a mechanical release button.
  • a sensor 2 is arranged at a certain component 3 of the charging plug system, which in the embodiment shown, the grip portion 16 of the plug 1, a sensor 2 is arranged.
  • a signal evaluation device 4 is provided in the plug 1 as well as a power supply 5 for the charging plug system, which comprises an internal energy store 6 in the exemplary embodiment shown.
  • the sensor 2 can be constructed and arranged in many different ways.
  • Fig. 2 shows a conceivable structure of an embodiment of a capacitive sensor including conceivable block diagram.
  • the plug 1 is (apart from the electrical contacts, not shown) completely, so also in the area in which the sensor 2 is arranged, coated with an insulating surface.
  • an electrode 1 1 is provided below this insulating surface 7.
  • the electrode 1 1 is in operative connection with an MCU (controller with evaluation unit) 1 2.
  • the controller with evaluation unit 1 2 is in operative connection with a switching element 13, which switches the device 14, which provides the charging current.
  • the drawn capacitors 17 are not representational, but merely symbolize the capacitive mode of action. It measures the capacitance between the electrode 1 1 and, for example, the electrical ground potential.
  • the at least one sensor is designed so that it emits or triggers a signal to the signal evaluation device 4 upon contact and / or approach of a body part to the plug 1 or certain components 3 of the charging plug system or the plug 1.
  • the signal evaluation Device 4 is in this case a switch-off signal to the device for providing the charging current 14 so the charging and control unit, to switch off the charging current. This ensures that the trigger of the mechanical lock is not actuated, and the straightener can be pulled out of the handle before the charging current has been deactivated.
  • the sensor 2 can cooperate with an oscillator, in particular an RC oscillator.
  • the measurement of the capacitance can be done by measuring the impedance change, which in turn can be done by a voltage measurement. It is also possible to measure the natural frequency change of the oscillator or a phase shift of approximately a voltage. It is conceivable that the sensitivity of the sensor is adjusted so that the signal is emitted only when the human body part touches the insulation surface 7. It is also conceivable that the sensor already emits a signal when approaching the body part and when the insulating surface 7 is touched by the human body part, a further signal is generated by means of the same or another sensor.
  • the senor 2 Since the sensor 2 is completely integrated in the insulating material surrounded plug 1 in this embodiment, a function under harsh environmental conditions, for example, in terms of temperature, humidity or ESD (electrostatic discharge) is given.
  • harsh environmental conditions for example, in terms of temperature, humidity or ESD (electrostatic discharge) is given.

Abstract

Plug-type charging system in particular for electric vehicles, with a charger-side plug-type connector part (plug) (1), with a vehicle-side plug-type connector part (socket), with at least one sensor (2), in which the at least one sensor (2) emits a signal when a human body part nears the plug-type charging system and/or when a human body part touches the plug-type charging system.

Description

Ladestecksystem  Charging plug system
Die Erfindung betrifft ein Ladestecksystem, insbesondere für Elektrofahrzeuge. Bei dem Laden von Elektrofahrzeugen fließen große Ströme. Daher muss sichergestellt werden, dass die Steckverbinderteile nicht während des Ladevorganges (unter elektrischer Last) verbunden oder getrennt werden. Es muss also insbesonde- re gewährleistet sein, dass nicht der Stecker herausgezogen werden kann, bevor der Ladestrom deaktiviert wurde. Es sind bereits Ladesteckverbinder bekannt, die Vorrichtungen aufweisen, die diesen Zweck erfüllen sollen. The invention relates to a charging plug system, in particular for electric vehicles. When charging electric vehicles flow large currents. Therefore, it must be ensured that the connector parts are not connected or disconnected during charging (under electrical load). It must therefore be ensured in particular that the plug can not be pulled out before the charging current has been deactivated. There are already charging connectors known, which have devices that should fulfill this purpose.
Die Erfindung hat es sich zur Aufgabe gemacht, ein Ladestecksystem zu schaffen, welches die genannte Sicherheitsfunktion besonders sicher und komfortabel bereitstellt. The invention has set itself the task of creating a charging plug system, which provides the said safety function particularly safe and comfortable.
Diese Aufgabe wird durch das in Anspruch 1 wiedergegebene Ladestecksystem gelöst. This object is achieved by the reproduced in claim 1 charging plug system.
Das erfindungsgemäße Ladestecksystem eignet sich insbesondere für die Ladung von Elektrofahrzeugen, beispielsweise Elektroautos. Es umfasst ein ladevorrich- tungsseitiges Steckverbinderteil (Stecker), sowie ein fahrzeugseitiges Steckverbinderteil (Steckdose). Das Ladestecksystem umfasst zudem mindestens einen Sensor. Dieser mindestens eine Sensor gibt ein Signal ab, wenn sich ein mensch- liches Körperteil, insbesondere eine Hand, dem Ladestecksystem nähert und/oder wenn ein menschliches Körperteil das Ladestecksystem berührt. Hierdurch ist eine Voraussetzung dafür geschaffen, dass die Ladesteckverbindung stromlos ist, sobald und solange sie von einem menschlichen Körperteil, insbesondere der Hand, berührt wird, wodurch ein Verbinden oder Trennen unter Last vermieden ist. Da es hierfür nicht erforderlich ist, dass der Nutzer eine Betätigung vornimmt, etwa das Betätigen eines Sicherheitsschalters, ist die Vorrichtung besonders komfortabel und sicher. Bedienungsfehler sind weitgehend ausgeschlossen. Vorzugsweise ist eine mechanische Verriegelung der Steckverbinderteile vorgesehen. Diese Verriegelung umfasst bevorzugt einen schwenkbaren Hebel mit Haken, beziehungsweise Rastnase, sowie einen hintergreifbaren Vorsprung. Der Hebel ist bevorzugt um eine quer zu seiner Längserstreckung verlaufende Achse schwenkbar. Vorzugsweise ist ein mechanischer Auslöser an dem Hebel vorgese- hen. Der Hebel ist vorzugsweise auf der Steckerseite vorgesehen. The charging plug system according to the invention is particularly suitable for the charging of electric vehicles, such as electric cars. It comprises a charging device-side connector part (plug), as well as a vehicle-side connector part (socket). The charging plug system also includes at least one sensor. This at least one sensor emits a signal when a human Lich body part, in particular a hand, the charging connector system approaches and / or when a human body part touches the charging system. As a result, a prerequisite is created that the charging connector is de-energized, as soon as and as long as it is touched by a human body part, in particular the hand, whereby a connection or disconnection under load is avoided. Since it is not necessary for this that the user performs an operation, such as the operation of a safety switch, the device is particularly comfortable and safe. Operating errors are largely excluded. Preferably, a mechanical locking of the connector parts is provided. This lock preferably comprises a pivotable lever with hooks, or latching nose, as well as a behind-reachable projection. The lever is preferably pivotable about an axis extending transversely to its longitudinal axis. Preferably, a mechanical trigger is provided on the lever. The lever is preferably provided on the plug side.
In der bevorzugten Ausführungsform gibt der mindestens eine Sensor ein Signal dann ab, wenn sich ein menschliches Körperteil bestimmten Komponenten des Ladestecksystems nähert und/oder diese berührt. Vorzugsweise umfassen die bestimmten Komponenten den Griffbereich des Steckers, an dem dieser üblicherweise berührt wird, um die Steckverbindung zu verbinden oder zu lösen. Es ist denkbar, dass die bestimmten Komponenten Bereiche umfassen, deren Berührung zur Lösung eines Verriegelungsmechanismus erforderlich ist. In einer Ausführungsform ist lediglich ein einziger Sensor vorgesehen. Vorzugsweise sind mehrere, ganz besonders bevorzugt mehrere verschiedenartige Sensoren vorgesehen. Besonders bevorzugt sind mehrere Sensoren vorgesehen und die Sensoren sind an verschiedenen Stellen des Ladestecksystems angeordnet. Auf diese Weise kann eine besonders hohe Zuverlässigkeit erreicht werden. In the preferred embodiment, the at least one sensor outputs a signal when a human body part approaches and / or touches certain components of the charging plug system. Preferably, the particular components comprise the gripping portion of the connector where it is typically contacted to connect or disconnect the connector. It is conceivable that the particular components include areas that are required to contact a locking mechanism. In one embodiment, only a single sensor is provided. Preferably, several, most preferably several different types of sensors are provided. Particularly preferably, a plurality of sensors are provided and the sensors are arranged at different locations of the charging plug system. In this way, a particularly high reliability can be achieved.
Es ist denkbar, dass Sensoren vorgesehen sind, die Wärmestrahlung, Temperatur, Feuchtigkeit, Druck, reflektierten Schall, reflektiertes Licht, sonstige elektromagnetische Strahlung, Beschleunigung oder dergleichen erfassen. Zudem können die Sensoren nach verschiedensten Messprinzipien arbeiten. Vorzugsweise arbeitet der mindestens eine Sensor über das magnetische oder das elektrische Feld. In einer Ausführungsform ist er als induktiver Sensor vorgesehen. It is conceivable that sensors are provided which detect heat radiation, temperature, humidity, pressure, reflected sound, reflected light, other electromagnetic radiation, acceleration or the like. In addition, the sensors can work according to a wide variety of measuring principles. Preferably, the at least one sensor operates via the magnetic or the electric field. In one embodiment, it is provided as an inductive sensor.
Besonders bevorzugt ist der mindestens eine Sensor ein kapazitiver Sensor. Es hat sich gezeigt, dass mit diesem Sensortyp die zu erfüllenden Anforderungen besonders gut erfüllt werden können. So kann dieser Sensortyp beispielsweise besonders gut unter einer nichtmetallischen Isolationsschicht angeordnet sein. Particularly preferably, the at least one sensor is a capacitive sensor. It has been shown that with this sensor type, the requirements to be met can be met particularly well. For example, this sensor type can be arranged particularly well under a non-metallic insulation layer.
Bevorzugt ist eine Signalauswertvorrichtung vorgesehen. Preferably, a signal evaluation device is provided.
Vorzugsweise wertet die Signalauswertvorrichtung die Impedanzänderung des Sensors aus. The signal evaluation device preferably evaluates the impedance change of the sensor.
Die Signalauswertvorrichtung gibt vorzugsweise in Abhängigkeit des Sensorsignals ein Signal an eine Lade- und Steuereinheit zur Schaltung eines Ladestroms. The signal evaluation device preferably outputs a signal as a function of the sensor signal to a charging and control unit for switching a charging current.
In einer Ausführungsform gibt die Signalauswertvorrichtung in Abhängigkeit des Sensorsignals ein Anschaltsignal an eine Lade- und Steuereinheit zur Anschaltung eines Ladestroms. In der bevorzugten Ausführungsform wird die Anschaltfunktion durch eine andere Vorrichtung ausgeführt und die Signalauswertung gibt bevorzugt in Abhängigkeit des Sensorsignals ausschließlich ein Abschaltsignal an eine Lade- und Steuereinheit zur Abschaltung eines Ladestroms. In one embodiment, the signal evaluation device in response to the sensor signal, a connection signal to a charging and control unit for connecting a charging current. In the preferred embodiment, the start-up function is performed by another device and the signal evaluation is preferably in response to the sensor signal exclusively a shutdown signal to a charging and control unit for switching off a charging current.
In der Ausführungsform mit mehreren Sensoren können diese einzeln vorgesehen sein. Vorzugsweise sind jedoch mehrere Sensoren zu mindestens einem Mehr- fachsensorpad zusammengefasst. Der mindestens eine Sensor ist bevorzugt unterhalb einer Isolationsfläche vorgesehen. In the embodiment with a plurality of sensors, these may be provided individually. Preferably, however, several sensors are combined to form at least one multi-sensor pad. The at least one sensor is preferably provided below an insulating surface.
Mindestens ein Sensor ist bevorzugt unterhalb einer Isolationsfläche vorgesehen. Vorzugsweise ist eine Stromversorgung des Ladestecksystems vorgesehen. Die Stromversorgung kann durch die Ladevorrichtungsseite und/oder die Fahrzeugseite und/oder einen internen Energiespeicher erfolgen. Vorzugsweise erfolgt die Stromversorgung durch die Ladevorrichtungsseite, da in diesem Fall auch die Möglichkeit besteht, dass die Signalauswertvorrichtung den Ladestrom anschaltet ohne dass ein interner Energiespeicher erforderlich ist. At least one sensor is preferably provided below an insulating surface. Preferably, a power supply of the charging system is provided. The power supply can be done by the charging device side and / or the vehicle side and / or an internal energy storage. The power supply preferably takes place through the charging device side, since in this case it is also possible for the signal evaluation device to switch on the charging current without the need for an internal energy store.
In der besonders bevorzugten Ausführungsform ist der mindestens eine Sensor in dem ladevorrichtungsseitigen Steckverbinderteil (Stecker) vorgesehen. In the most preferred embodiment, the at least one sensor is provided in the charger side connector part (plug).
In einer bevorzugten Ausführungsform ist mindestens ein über das magnetische oder das elektrische Feld arbeitender Sensor, bevorzugt ein kapazitiver Sensor und mindestens ein Drucksensor vorgesehen. Vorzugsweise gibt die Signalauswertvorrichtung erst dann ein Signal an eine Lade- und Steuereinheit zur Schaltung eines Ladestroms, wenn der über das magnetische oder das elektrische Feld arbeitende Sensor und der Drucksensor ein Signal abgeben. Hierdurch kann eine Fehlfunktion durch etwaige Signalabgabe des über das magnetische oder elektrische Feld arbeitenden Sensors, die nicht durch ein menschliches Körperteil, sondern durch andere Umstände, etwa durch Regen verursacht wurde, verhindert werden. In a preferred embodiment, at least one sensor operating via the magnetic or electric field, preferably a capacitive sensor and at least one pressure sensor, is provided. The signal evaluation device preferably sends a signal to a charging and control unit for switching a charging current only when the sensor operating via the magnetic or electric field and the pressure sensor emit a signal. As a result, a malfunction by any signal output of the working via the magnetic or electric field sensor, which was not caused by a human body part, but by other circumstances, such as rain, be prevented.
Die Erfindung soll nun anhand eines in den Zeichnungen gezeigten Ausführungsbeispiels näher erläutert werden. Es zeigen schematisch und ausschnittsweise: The invention will now be explained in more detail with reference to an embodiment shown in the drawings. It shows schematically and partially:
Fig. 1 eine teilweise geschnittene Seitenansicht eines Steckers des erfindungsgemäßen Ladestecksystems; Fig. 1 is a partially sectioned side view of a plug of the charging plug system according to the invention;
Fig. 2 eine schematische Darstellung eines kapazitiven Sensors mit Block- Schaltbild. Fig. 2 is a schematic representation of a capacitive sensor with block diagram.
Fig. 1 zeigt eine geschnittene Seitenansicht des ladevorrichtungsseitigen Steckverbinderteils, also des Steckers 1 des erfindungsgemäßen Ladestecksystems. Die elektrischen Kontakte und Leitungen, die den Ladestrom leiten, sind aus Ü- bersichtlichkeitsgründen nicht eingezeichnet. Der Stecker 1 weist einen Verriege- lungsmechanismus 8 auf, der einen Hebel 9 umfasst, welcher eine Rastnase 1 0 aufweist. Der Hebel 9 ist federbelastet und die Rastnase 10 hintergreift bei geschlossener Steckverbindung einen Vorsprung der nicht dargestellten Steckdose. Die Verriegelung kann durch Betätigen eines mechanischen Auslösers aufgehoben werden. Fig. 1 shows a sectional side view of the charging device side connector part, so the connector 1 of the charging system according to the invention. The electrical contacts and lines that conduct the charging current are from for clarity not shown. The plug 1 has a locking mechanism 8, which comprises a lever 9, which has a latching lug 10. The lever 9 is spring-loaded and the locking lug 10 engages behind a projection of the outlet, not shown, when the connector is closed. The lock can be released by pressing a mechanical release button.
An einer bestimmten Komponente 3 des Ladestecksystems, die im gezeigten Ausführungsbeispiel den Griffbereich 16 des Steckers 1 umfasst, ist ein Sensor 2 an- geordnet. Wie Fig . 1 zeigt, ist in dem Stecker 1 auch eine Signalauswertvorrichtung 4 vorgesehen sowie eine Stromversorgung 5 für das Ladestecksystem, die im gezeigten Ausführungsbeispiel einen internen Energiespeicher 6 umfasst. At a certain component 3 of the charging plug system, which in the embodiment shown, the grip portion 16 of the plug 1, a sensor 2 is arranged. As Fig. 1, a signal evaluation device 4 is provided in the plug 1 as well as a power supply 5 for the charging plug system, which comprises an internal energy store 6 in the exemplary embodiment shown.
Der Sensor 2 kann auf vielerlei verschiedene Arten aufgebaut und angeordnet sein. Fig. 2 zeigt einen denkbaren Aufbau eines Ausführungsbeispiels eines kapazitiven Sensors samt denkbarem Blockschaltbild. Der Stecker 1 ist (abgesehen von den nicht gezeigten elektrischen Kontakten) vollständig, also auch in dem Bereich, in dem der Sensor 2 angeordnet ist, mit einer Isolationsfläche überzogen. In einem Trägermaterial 15 ist eine Elektrode 1 1 unterhalb dieser Isolationsfläche 7 vorgesehen. Die Elektrode 1 1 steht in Wirkverbindung mit einem MCU (Controller mit Auswerteeinheit) 1 2. Der Controller mit Auswerteeinheit 1 2 steht in Wirkverbindung mit einem Schaltelement 13, welches die Vorrichtung 14, welche den Ladenstrom bereit stellt, schaltet. Die eingezeichneten Kondensatoren 17 sind nicht gegenständlich, sondern symbolisieren lediglich die kapazitive Wirkungsweise. Es wird die Kapazität zwischen der Elektrode 1 1 und beispielsweise dem elektrischen Erdpotential gemessen. The sensor 2 can be constructed and arranged in many different ways. Fig. 2 shows a conceivable structure of an embodiment of a capacitive sensor including conceivable block diagram. The plug 1 is (apart from the electrical contacts, not shown) completely, so also in the area in which the sensor 2 is arranged, coated with an insulating surface. In a carrier material 15, an electrode 1 1 is provided below this insulating surface 7. The electrode 1 1 is in operative connection with an MCU (controller with evaluation unit) 1 2. The controller with evaluation unit 1 2 is in operative connection with a switching element 13, which switches the device 14, which provides the charging current. The drawn capacitors 17 are not representational, but merely symbolize the capacitive mode of action. It measures the capacitance between the electrode 1 1 and, for example, the electrical ground potential.
Wenn sich ein menschliches Körperteil, beispielsweise eine Hand 18 nähert, führt dies zu einer Veränderung der gemessenen Kapazität. Diese Veränderung der Kapazität ist als Signal verwertbar. Der mindestens eine Sensor ist so ausgelegt, dass er bei Berührung und /oder Annäherung eines Körperteils an den Stecker 1 oder bestimmte Komponenten 3 des Ladestecksystems oder des Steckers 1 ein Signal an die Signalauswertvorrichtung 4 abgibt oder auslöst. Die Signalauswert- Vorrichtung 4 gibt in diesem Fall ein Abschaltsignal an die Vorrichtung zur Bereitstellung des Ladestroms 14 also die Lade- und Steuereinheit, zur Abschaltung des Ladestroms. Hierdurch ist gewährleistet, dass nicht der Auslöser der mechanischen Verriegelung betätigt, sowie der Strecker am Griff herausgezogen werden kann, bevor der Ladestrom deaktiviert wurde. When a human body part, such as a hand 18, approaches, this results in a change in the measured capacity. This change in capacity can be used as a signal. The at least one sensor is designed so that it emits or triggers a signal to the signal evaluation device 4 upon contact and / or approach of a body part to the plug 1 or certain components 3 of the charging plug system or the plug 1. The signal evaluation Device 4 is in this case a switch-off signal to the device for providing the charging current 14 so the charging and control unit, to switch off the charging current. This ensures that the trigger of the mechanical lock is not actuated, and the straightener can be pulled out of the handle before the charging current has been deactivated.
Der Sensor 2 kann mit einem Oszillator, insbesondere einem RC-Oszillator zusammenarbeiten. Die Messung der Kapazität kann über das Messen der Impedanzänderung erfolgen, was wiederum über eine Spannungsmessung erfolgen kann. Es kann auch die Eigenfrequenzänderung des Oszillators bzw. eine Phasenverschiebung etwa einer Spannung gemessen werden. Es ist denkbar, dass die Empfindlichkeit des Sensors so eingestellt ist, dass das Signal erst dann abgegeben wird, wenn das menschliche Körperteil die Isolationsfläche 7 berührt. Ebenso ist denkbar, dass der Sensor bereits bei Annäherung des Körperteils ein Signal abgibt und bei Berührung der Isolationsfläche 7 durch das menschliche Körperteil ein weiteres Signal mittels des gleichen oder eines ande- ren Sensors erzeugt wird. The sensor 2 can cooperate with an oscillator, in particular an RC oscillator. The measurement of the capacitance can be done by measuring the impedance change, which in turn can be done by a voltage measurement. It is also possible to measure the natural frequency change of the oscillator or a phase shift of approximately a voltage. It is conceivable that the sensitivity of the sensor is adjusted so that the signal is emitted only when the human body part touches the insulation surface 7. It is also conceivable that the sensor already emits a signal when approaching the body part and when the insulating surface 7 is touched by the human body part, a further signal is generated by means of the same or another sensor.
Da der Sensor 2 in diesem Ausführungsbeispiel vollständig in den von Isolationsmaterial umgebenen Stecker 1 integriert ist, ist eine Funktion unter rauen Umgebungsbedingungen beispielsweise bezüglich Temperatur, Feuchtigkeit oder ESD (elektrostatischer Entladung) gegeben. Since the sensor 2 is completely integrated in the insulating material surrounded plug 1 in this embodiment, a function under harsh environmental conditions, for example, in terms of temperature, humidity or ESD (electrostatic discharge) is given.
Bezugszeichenliste: LIST OF REFERENCE NUMBERS
1 Stecker 1 plug
2 Sensor  2 sensor
3 bestimmte Komponenten des Ladestecksystems 3 certain components of the charging system
4 Signalauswertvorrichtung 4 signal evaluation device
5 Stromversorgung  5 power supply
6 interner Energiespeicher  6 internal energy storage
7 Isolationsfläche  7 insulation area
8 Verriegelungsmechanismus  8 locking mechanism
9 Hebel  9 levers
10 Rastnase  10 latch
1 1 Elektrode  1 1 electrode
12 MCU (Controller mit Auswerteeinheit)  12 MCU (controller with evaluation unit)
13 Schaltelement  13 switching element
14 Vorrichtung zur Bereitstellung des Ladestroms 14 Device for providing the charging current
15 Trägermaterial 15 carrier material
16 Griffbereich  16 grip area
17 Kondensatoren  17 capacitors
18 Hand  18 hand

Claims

Patentansprüche: claims:
1 . Ladestecksystem insbesondere für Elektrofahrzeuge, mit einem ladevor- richtungsseitigen Steckverbinderteil (Stecker) (1 ), mit einem fahrzeugseiti- gen Steckverbinderteil (Steckdose), mit mindestens einem Sensor (2), wobei der mindestens eine Sensor (2) ein Signal abgibt, wenn sich ein menschliches Körperteil dem Ladestecksystem nähert und/oder wenn ein menschliches Körperteil das Ladestecksystem berührt. 1 . Charging plug system, in particular for electric vehicles, with a charging device side connector part (plug) (1), with a vehicle-side connector part (socket), with at least one sensor (2), wherein the at least one sensor (2) emits a signal when a human body part approaches the charging plug system and / or when a human body part touches the charging plug system.
2. Ladestecksystem nach Anspruch 1 , dadurch gekennzeichnet, dass der mindestens eine Sensor (2) ein Signal abgibt, wenn sich ein menschliches Körperteil bestimmten Komponenten (3) des Ladestecksystems nähert und/oder diese berührt. 2. charging connector system according to claim 1, characterized in that the at least one sensor (2) emits a signal when a human body part approaches certain components (3) of the charging system and / or touches them.
3. Ladestecksystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mehrere Sensoren (2) vorgesehen sind und die Sensoren (2) an verschiedenen Stellen angeordnet sind. 3. charging connector system according to claim 1 or 2, characterized in that a plurality of sensors (2) are provided and the sensors (2) are arranged at different locations.
4. Ladestecksystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der mindestens eine Sensor (2) ein kapazitiver oder induktiver Sensor ist. 4. charging plug system according to one of claims 1 to 3, characterized in that the at least one sensor (2) is a capacitive or inductive sensor.
5. Ladestecksystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass eine Signalauswertvorrichtung (4) vorgesehen ist. 5. charging plug system according to one of claims 1 to 4, characterized in that a signal evaluation device (4) is provided.
6. Ladestecksystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der mindestens eine Sensor (2) ein kapazitiver oder induktiver Sensor ist, und eine Signalauswertvorrichtung (4) vorgesehen ist und die Signalauswertvorrichtung (4) die Impedanzänderung des Sensors (2) auswertet. 6. charging plug system according to one of claims 1 to 3, characterized in that the at least one sensor (2) is a capacitive or inductive sensor, and a signal evaluation device (4) is provided and the signal evaluation device (4) the impedance change of the sensor (2) evaluates.
7. Ladestecksystem nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Signalauswertung (4) in Abhängigkeit des Sensorsignals ein Signal an eine Lade- und Steuereinheit zur Schaltung eines Ladestroms gibt. 7. charging connector system according to claim 5 or 6, characterized in that the signal evaluation (4) in response to the sensor signal is a signal to a charging and control unit for switching a charging current.
8. Ladestecksystem nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass mehrere Sensoren (2) zu mindestens einem Mehrfachsen- sorpad zusammengefasst sind. 8. charging plug system according to one of claims 1 to 7, characterized in that a plurality of sensors (2) are combined to form at least one Mehrfachsen- sorpad.
9. Ladestecksystem nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass mindestens ein Sensor (2) unterhalb einer Isolationsfläche (7) vorgesehen ist. 9. charging plug system according to one of claims 1 to 8, characterized in that at least one sensor (2) below an insulating surface (7) is provided.
10. Ladestecksystem nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass eine Stromversorgung (5) für das Ladestecksystem vorgesehen ist. 10. charging connector system according to one of claims 1 to 9, characterized in that a power supply (5) is provided for the charging connector system.
1 1 . Ladestecksystem nach Anspruch 10, dadurch gekennzeichnet, dass die Stromversorgung (5) durch die Ladevorrichtungsseite erfolgt. 1 1. Charging plug system according to claim 10, characterized in that the power supply (5) takes place through the charging device side.
12. Ladestecksystem nach Anspruch 10, dadurch gekennzeichnet, dass die Stromversorgung (5) durch einen internen Energiespeicher (6) erfolgt. 12. charging plug system according to claim 10, characterized in that the power supply (5) by an internal energy storage (6).
13. Ladestecksystem nach Anspruch 10, dadurch gekennzeichnet, dass die Stromversorgung (5) durch die Fahrzeugseite erfolgt. 13. charging plug system according to claim 10, characterized in that the power supply (5) takes place through the vehicle side.
14. Ladestecksystem nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass der mindestens eine Sensor (2) in dem ladevorrichtungssei- tigen Steckverbinderteil (Stecker) (1 ) vorgesehen ist. 14. charging plug system according to one of claims 1 to 13, characterized in that the at least one sensor (2) in the charging device-side connector part (plug) (1) is provided.
15. Ladestecksystem nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass mindestens ein über das magnetische oder das elektrische Feld arbeitender Sensor (2) und mindestens ein Drucksensor vorgesehen sind. 15. charging plug system according to one of claims 1 to 14, characterized in that at least one over the magnetic or the electric field working sensor (2) and at least one pressure sensor are provided.
PCT/EP2010/066720 2009-11-04 2010-11-03 Plug-type charging system WO2011054854A1 (en)

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DE202009013675.2 2009-11-04
DE202009013675U DE202009013675U1 (en) 2009-11-04 2009-11-04 Charging plug system

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