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EP4178825A1 - Charging interface for an electric bicycle - Google Patents

Charging interface for an electric bicycle

Info

Publication number
EP4178825A1
EP4178825A1 EP21724263.5A EP21724263A EP4178825A1 EP 4178825 A1 EP4178825 A1 EP 4178825A1 EP 21724263 A EP21724263 A EP 21724263A EP 4178825 A1 EP4178825 A1 EP 4178825A1
Authority
EP
European Patent Office
Prior art keywords
charging
connection
adapter
bicycle
interface
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP21724263.5A
Other languages
German (de)
French (fr)
Inventor
Sebastian UTZ
Matthias Schwerdtle
Markus SAMPER
Anton Wiedenbauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innofas GmbH
Original Assignee
Innofas GmbH
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 Innofas GmbH filed Critical Innofas GmbH
Publication of EP4178825A1 publication Critical patent/EP4178825A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/20—Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals
    • 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
    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/34—Plug-like or socket-like devices specially adapted for contactless inductive charging of 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and 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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • 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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/57—Charging stations without connection to power networks
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/12—Bikes
    • 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

Definitions

  • the invention relates to a charging interface of an energy store of an electric bicycle with a connecting device having a flexible line and a charging connection on the energy store side.
  • some electric bicycles have a charging connection that can be connected to an external charging station and also enables the energy storage device to be charged electrically at public charging stations.
  • the effort required by the user to connect to a charging station using a charging cable is still very high.
  • a driver of an electric bicycle needs a charging cable that can be connected to the energy storage device.
  • the rider since the different electric bicycle manufacturers use different battery systems and connection systems, the rider must always carry a suitable charging cable with them to charge the energy storage device or a provider who wants to enable users to charge their batteries must provide a large number of different charging cables and charging systems.
  • the weight and space requirements of the charging cable are an uncomfortable burden for the driver and there is hope for a charging option on the go.
  • Another problem is the different voltage levels and charging currents when charging, so that even with a plug-compatible adapter, e.g. B. a provider of an energy storage not easily another energy storage of another type of bicycle from the same provider can be loaded. It is therefore the object of the present invention to provide a charging interface for an energy store of an electric bicycle which enables convenient and universal charging of the energy store of an electric bicycle or optimizes charging overall.
  • a charging interface of an energy store of an electric bicycle is proposed with a connecting device having a flexible line and a charging connection on the energy store side.
  • the charging connection is electrically conductively connected to the energy store and is arranged on a bicycle component, in particular a frame of the electric bicycle.
  • the connection device is designed on the connection side in such a way that it can be electrically connected to a charging device that can be connected to a power source.
  • the connecting device can be releasably attached to the bicycle component in such a way that a resulting flow of current in the charging connection charges the energy store of the electric bicycle.
  • connection device has a charging adapter on the bicycle side and a connection adapter on the connection side.
  • connection device for charging the energy store can be connected to the charging connection with the charging adapter and to the charging device with the connection adapter.
  • connection adapter of the connection device on the connection side has a universal connection connector that is designed to connect a variety of different chargers.
  • the advantage of this is that charging is usually only possible with special battery chargers.
  • the connection adapter the energy store of the electric bicycle can be charged with commercially available chargers, such as a laptop or a cell phone.
  • this is a very flexible and mobile solution, since the connection device with the connection adapter is lighter than a conventional charging device for the energy storage device of an electric bicycle.
  • the connection adapter according to the invention is sustainable since existing chargers can be used for charging.
  • connection adapter of the connection device on the connection side has a USB-C connection. It is favorable that a USB-C connection is a standardized and widespread connection of charging devices for charging or for establishing an electrically conductive connection and consequently these charging devices can be used by means of the connection adapter.
  • connection adapter of the connection device on the connection side comprises a further energy store, in particular a power bank.
  • the energy store can be charged with the connection adapter of the connection device even at greater distances where no power source is available, without having to carry a second original battery with you.
  • connection adapter of the connection device on the connection side has a connection for a trailer socket of a trailer hitch, in particular a 13- pin standardized connection.
  • the advantage of this is that another mobile solution is provided for on the go, since the energy storage device can be charged in a parking lot, for example, before a ride with the electric bicycle.
  • An embodiment of the charging interface with an electricity meter is also conceivable, for example in order to charge other people's electric bicycles and then to bill for the electrical energy supplied.
  • the connection adapter of the connection device can be connected to the trailer socket of the trailer hitch if the bicycle is attached to a bicycle carrier that does not have a special charging connection for an electric bicycle. In this way, the electric bicycle can be charged at the same time using the charging interface while driving a motor vehicle.
  • the charging connection and the charging adapter each have two contact points for establishing an electrically conductive connection.
  • the contact points are essentially rectangular.
  • the respective contact points of the charging adapter cross the contact points of the charging connection when used as intended, preferably in such a way that one contact point of the charging adapter is orthogonal or at an angle of between 45° and 90° to a respective contact point of the charging connection runs.
  • the advantage of this is that the energy store is charged via the contact points on the bicycle component. Due to the fact that the rectangular contact points make contact crossing each other, contact of the contact points is ensured despite a certain amount of play in the arrangement.
  • the charging interface is preferably designed in such a way that the contact points of the charging adapter have a pointed surface or a surface that is curved like a spoon.
  • the invention provides that the contact points of the charging adapter as a terminal contact or a resilient tab are formed. It is favorable that the contact points of the charging adapter, when they come into contact with the contact points of the charging connection, scrape the surface thereof in such a way that dirt is removed from the contact points of the charging connection and contact between the contact points is ensured.
  • the charging connection and the charging adapter each have a charging coil for charging by means of electromagnetic induction for inductive charging.
  • the charging interface according to the invention is designed in one embodiment such that the charging connection with the charging coil is arranged inside the frame of the electric bicycle. The advantage of this is that no direct contact has to be established between the charging adapter and the charging connection and the charging interface is therefore arranged more flexibly in use and positioning on the electric bicycle and protected inside the electric bicycle.
  • the charging adapter has a DC voltage converter, which correspondingly converts a DC voltage generated by the charging device into a rectified charging voltage predetermined for charging the energy store. It is favorable here that even with different types of charging devices, the charging voltage required or optimal for charging the energy store is always present at the charging connection.
  • the charging adapter comprises at least one magnet, by means of which the charging adapter can be detachably attached to the bicycle component of the electric bicycle by means of magnetic force.
  • the charging interface is preferably designed in such a way that the charging connection includes a magnet that corresponds to the magnet and by means of which the charging adapter can be detachably attached to the bicycle component of the electric bicycle at a predetermined position.
  • the invention provides that the charging adapter can be moved, in particular rotated or foldable, is mounted on a fixed carrier. In this way, a folding mechanism is provided which guides the charging adapter into the desired charging position when the electrically conductive connection is established between the charging adapter and the charging connection. This ensures that the charging adapter is correctly positioned.
  • the charging interface according to the invention is designed in such a way that the carrier is a bicycle stand.
  • the carrier is a bicycle stand.
  • a bike stand is usually used to park the electric bike in public places or at home. Accordingly, parking the electric bicycle is combined with charging the energy store.
  • the carrier is a bicycle carrier, in particular a rear carrier or a carrier for a trailer hitch. It is favorable that the electric bicycle can be charged using the charging interface while driving a motor vehicle. In addition, there is also a shop with the motor vehicle possible if no other energy source is available or accessible, such as on a trip to the mountains.
  • a spring to be arranged between the stationary carrier and the charging adapter, which spring exerts a spring force on the charging adapter when the charging adapter is not arranged in the charging position. This provides a mechanical mechanism for automatically establishing the connection between the charging adapter and the charging port.
  • a method for charging an energy store of an electric bicycle with a charging interface comprises positioning the electric bicycle on the carrier.
  • a position of the charging connection is arranged at the same relative height from the ground as a position of the charging adapter, so that contact is made between the charging connection and the charging adapter when the electric bicycle is positioned on the carrier without a manual plugging process being required.
  • FIG. 1 shows a schematic representation of a charging interface of an energy store of an electric bicycle
  • FIG. 2 shows a schematic representation of a further charging interface an energy storage device of an electric bicycle
  • FIG. 3 shows a schematic representation of a connection device of a charging interface of an energy store of an electric bicycle
  • FIG. 4 shows a schematic representation of a further connection device of a charging interface of an energy store of an electric bicycle.
  • FIG. 1 shows a schematic representation of a charging interface 1 of an energy store 2 of an electric bicycle 3 with a connecting device 10 having a flexible line and a charging connection 4 on the energy store side.
  • the charging connection 4 is electrically conductively connected to the energy store 2 of the electric bicycle 3 and is arranged on a bicycle component 31 , which is a frame of the electric bicycle 3 .
  • the energy store 2 is arranged within the bicycle component 31 (here the bicycle frame).
  • the connecting device 10 is designed on the connection side in such a way that it is electrically conductively connected to a charging device 6 which is connected to a power source. Furthermore, the connection device 10 has a charging adapter 5 on the bicycle side and a connection adapter 11 on the connection side.
  • the connecting device 10 is detachably attached to the bicycle component 31 in such a way that a resulting flow of current in the charging connection 4 charges the energy store 2 of the electric bicycle 3 .
  • the charging connection 4 and the charging adapter 5 each have a charging coil 42, 52 for charging by means of electromagnetic induction for inductive charging.
  • the charging connector 4 with the charging coil 42 is arranged inside the bicycle component 31 of the electric bicycle 3 .
  • the charging adapter 5 has a DC voltage converter 53 which converts a DC voltage generated by the charging device 6 into a rectified charging voltage predetermined for charging the energy store 2 .
  • the DC-DC converter can be designed in such a way that it receives the required charging voltage via communication with the energy store 2 or that this can be set or selected via a user interface.
  • the charging adapter 5 includes a magnet 7 by means of which the charging adapter 5 is detachably attached to the bicycle component 31 of the electric bicycle 3 by means of magnetic force. Furthermore, the charging connection 4 includes a magnet 8 corresponding to the magnet 7 , by means of which the charging adapter 5 is detachably attached to the bicycle component 31 of the electric bicycle 3 at a predetermined position.
  • FIG. 2 shows a schematic representation of a further charging interface 1 of an energy store 2 of an electric bicycle 3.
  • the charging interface 1 shown in FIG. the connecting device 10 is in turn releasably attached to the bicycle component 31 in such a way that a resulting current flow in the charging connection 4 charges the energy store 2 of the electric bicycle 3 .
  • the charging connection 4 and the charging adapter 5 each have two contact points 41, 51 for establishing an electrically conductive connection.
  • the contact points 41, 51 are essentially rectangular.
  • the respective contact points 51 of the charging adapter 5 make contact with the contact points 41 of the charging connection 4 in a crossing manner.
  • the charging interface 1 shown in FIG. 2 is designed such that a contact point 51 of the charging adapter 5 is orthogonal to a respective contact clock point 41 of the charging connection 4 runs.
  • the contact points 51 of the charging adapter 5 are also each designed as a clamping contact.
  • FIG. 3 shows a schematic representation of a connecting device 10 of a charging interface 1 of an energy store 2 of an electric bicycle 3 .
  • the connection device 10 has a charging adapter 5 on the bicycle side and a connection adapter 11 on the connection side. Only the connection adapter 11 on the connection side is shown in FIG. This includes a universal connector 12, which is designed for connecting a variety of different types of chargers.
  • the connection adapter 11 of the connection device 10 on the connection side has a USB-C connection 13 .
  • FIG. 4 shows a schematic representation of a further connection device 10 of a charging interface 1 of an energy store 2 of an electric bicycle 3.
  • the connection device 10 in turn has a charging adapter 5 on the bicycle side and a connection adapter 11 on the connection side.
  • the charging adapter 5 is designed as a plug for the charging connection 4 .
  • the connection adapter 11 of the connection device 10 on the connection side comprises a further energy store 110 with a USB-C connection 13, which is designed as a power bank.

Landscapes

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

Abstract

The invention relates to a charging interface (1) of an energy store (2) of an electric bicycle (3), comprising a connection apparatus (10) having a flexible cable, and to an energy-store-side charging port (4), wherein: the charging port (4) is electrically connected to the energy store (2) and is located on a bicycle component (31), in particular a frame of the electric bicycle (3); the port side of the connection apparatus (10) is designed such that said apparatus can be electrically connected to a charging device (6) which can be connected to a current source; and the connection apparatus (10) can be detachably fastened to the bicycle component (31) such that a resulting current flow in the charging port (4) charges the energy store (2) of the electric bicycle (3).

Description

Ladeschnittstelle für ein Elektrofahrrad Charging interface for an electric bicycle
Beschreibung: Description:
Die Erfindung betrifft eine Ladeschnittstelle eines Energiespeichers eines Elektrofahrrads mit einer eine flexible Leitung aufweisenden Verbindungseinrichtung sowie einen energiespeicherseitigen Ladeanaschluss. The invention relates to a charging interface of an energy store of an electric bicycle with a connecting device having a flexible line and a charging connection on the energy store side.
Bei Elektrofahrrädern bzw. Pedelecs ist es regelmäßig erforderlich, den Energiespeicher nach längerer Fahrt an einer elektrischen Energiequelle anzuschließen und mit elektrischer Energie aufzuladen. In the case of electric bicycles or pedelecs, it is regularly necessary to connect the energy store to an electrical energy source after a long journey and to charge it with electrical energy.
Deshalb ist es erforderlich zu gewährleisten, dass der Energiespeicher des Elektrofahrrads geladen werden kann. Hierfür gibt es Lösungen, bei denen die Energieversorgungseinheit zum Aufladen aus dem Fahrradrahmen des Elektrofahrrads ausgebaut wird. Dies ist für einen Nutzer jedoch sehr aufwändig. Ferner besteht das Problem, dass Akkus nicht vor Diebstahl gesichert sind, wenn diese zum Laden an eine lokale Ladestation gebracht werden und dort z.B. in einem Hotel während der Übernachtung geladen werden. It is therefore necessary to ensure that the energy storage of the Electric bike can be charged. There are solutions for this in which the energy supply unit is removed from the bicycle frame of the electric bicycle for charging. However, this is very complex for a user. There is also the problem that rechargeable batteries are not secured against theft if they are brought to a local charging station for charging and are charged there, for example, in a hotel during the night.
Zur Steigerung des Bedienungskomforts ist bei manchen Elektrofahrrädern ein Ladeanschluss vorgesehen, der mit einer externen Ladestation verbunden werden kann und eine elektrische Aufladung des Energiespeichers auch an öffentlichen Ladestationen ermöglicht. Der erforderliche Aufwand, den der Nutzer für das Anschließen an eine Ladestation mittels eines Ladekabels benötigt, ist aber weiterhin sehr hoch. To increase the ease of use, some electric bicycles have a charging connection that can be connected to an external charging station and also enables the energy storage device to be charged electrically at public charging stations. However, the effort required by the user to connect to a charging station using a charging cable is still very high.
Darüber hinaus benötigt ein Fahrer eines Elektrofahrrads ein Ladekabel das sich an den Energiespeicher anschließen lässt. Nachdem die unterschiedlichen Elektrofahrradhersteller jedoch jeweils unterschiedliche Batteriesysteme und Anschlusssysteme nutzen, muss der Fahrer zum Laden des Energiespeichers immer ein passendes Ladekabel mit sich führen bzw. muss ein Anbieter, der Nutzern das Laden ihrer Akkus ermöglichen will, eine Vielzahl von unterschiedlichsten Ladekabeln und Ladesystemen bereitstellen. Insbesondere bei Ausflügen oder längeren Touren sind das Gewicht und der Platzbedarf des Ladekabels für den Fahrer eine unangenehme Belastung und es wird auf eine Lademöglichkeit unterwegs gehofft. In addition, a driver of an electric bicycle needs a charging cable that can be connected to the energy storage device. However, since the different electric bicycle manufacturers use different battery systems and connection systems, the rider must always carry a suitable charging cable with them to charge the energy storage device or a provider who wants to enable users to charge their batteries must provide a large number of different charging cables and charging systems. Especially on excursions or longer tours, the weight and space requirements of the charging cable are an uncomfortable burden for the driver and there is hope for a charging option on the go.
Ein weiteres Problem sind die unterschiedlichen Spannungsniveaus und Ladeströme beim Laden, sodass selbst bei einem steckkompatiblen Adapter z. B. eines Anbieters eines Energiespeichers nicht ohne weiteres ein anderer Energiespeicher eines anderen Fahrradtyps des gleichen Anbieters geladen werden kann. Es ist daher Aufgabe der vorliegenden Erfindung, eine Ladeschnittstelle eines Energiespeichers eines Elektrofahrrads bereitzustellen, die ein bequemes und universelles Laden des Energiespeichers eines Elektrofahrrads ermöglicht bzw. das Laden insgesamt optimiert. Another problem is the different voltage levels and charging currents when charging, so that even with a plug-compatible adapter, e.g. B. a provider of an energy storage not easily another energy storage of another type of bicycle from the same provider can be loaded. It is therefore the object of the present invention to provide a charging interface for an energy store of an electric bicycle which enables convenient and universal charging of the energy store of an electric bicycle or optimizes charging overall.
Diese Aufgabe wird durch die Merkmalskombination gemäß Patentanspruch 1 gelöst. This object is achieved by the combination of features according to claim 1.
Erfindungsgemäß wird eine Ladeschnittstelle eines Energiespeichers eines Elektrofahrrads mit einer eine flexible Leitung aufweisenden Verbindungseinrichtung sowie einem energiespeicherseitigen Ladeanaschluss vorgeschlagen. Der Ladeanschluss ist elektrisch leitend mit dem Energiespeicher verbunden und an einer Fahrradkomponente, insbesondere einem Rahmen des Elektrofahrrads, angeordnet. Die Verbindungseinrichtung ist anschlussseitig derart ausgebildet, dass diese elektrisch leitend mit einem Ladegerät verbindbar ist, das mit einer Stromquelle verbindbar ist. Darüber hinaus ist die Verbindungseinrichtung derart lösbar an der Fahrradkomponente befestigbar, dass ein resultierender Stromfluss im Ladeanschluss den Energiespeicher des Elektrofahrrads lädt. Vorteilhaft daran ist, dass der Energiespeicher des Elektrofahrrads mittelbar über den Ladeanschluss an der Fahrradkomponente aufgeladen wird. Dadurch muss der Energiespeicher zum Laden nicht von dem Elektrofahrrad entfernt werden. According to the invention, a charging interface of an energy store of an electric bicycle is proposed with a connecting device having a flexible line and a charging connection on the energy store side. The charging connection is electrically conductively connected to the energy store and is arranged on a bicycle component, in particular a frame of the electric bicycle. The connection device is designed on the connection side in such a way that it can be electrically connected to a charging device that can be connected to a power source. In addition, the connecting device can be releasably attached to the bicycle component in such a way that a resulting flow of current in the charging connection charges the energy store of the electric bicycle. The advantage of this is that the energy store of the electric bicycle is charged indirectly via the charging connection on the bicycle component. As a result, the energy store does not have to be removed from the electric bicycle for charging.
Die erfindungsgemäße Ladeschnittstelle ist in einer Ausführungsvariante ausgebildet, dass die Verbindungseinrichtung einen fahrradseitigen Ladeadapter und einen anschlussseitigen Verbindungsadapter aufweist. Auf diese Weise ist die Verbindungseinrichtung zum Laden des Energiespeichers mit dem Ladeadapter an den Ladeanschluss und mit dem Verbindungsadapter an das Ladegerät anschließbar. The charging interface according to the invention is designed in one embodiment such that the connection device has a charging adapter on the bicycle side and a connection adapter on the connection side. In this way, the connection device for charging the energy store can be connected to the charging connection with the charging adapter and to the charging device with the connection adapter.
In einer bevorzugten Ausführungsform der Erfindung weist der anschlussseitige Verbindungsadapter der Verbindungseinrichtung einen Universalan- schluss auf, der für den Anschluss einer Vielzahl von verschiedenartigen Ladegeräten ausgebildet ist. Vorteilhaft daran ist, dass üblicherweise das Laden lediglich mit speziellen Batterieladegeräten möglich ist. Mittels des Verbindungsadapters ist der Energiespeicher des Elektrofahrrads mit handelsüblichen Ladegeräten, wie beispielsweise von einem Laptop oder einem Handy, aufladbar. Darüber hinaus ist dies eine sehr flexible und mobile Lösung, da die Verbindungseinrichtung mit dem Verbindungsadapter ein geringeres Gewicht aufweist als ein übliches Ladegerät für den Energiespeicher eines Elektrofahrrads. Ferner ist der erfindungsgemäße Verbindungsadapter nachhaltig, da bestehende Ladegeräte zum Laden genutzt werden können. In a preferred embodiment of the invention, the connection adapter of the connection device on the connection side has a universal connection connector that is designed to connect a variety of different chargers. The advantage of this is that charging is usually only possible with special battery chargers. Using the connection adapter, the energy store of the electric bicycle can be charged with commercially available chargers, such as a laptop or a cell phone. In addition, this is a very flexible and mobile solution, since the connection device with the connection adapter is lighter than a conventional charging device for the energy storage device of an electric bicycle. Furthermore, the connection adapter according to the invention is sustainable since existing chargers can be used for charging.
In einer vorteilhaften Ausführungsvariante ist vorgesehen, dass der anschlussseitige Verbindungsadapter der Verbindungseinrichtung einen USB-C Anschluss aufweist. Dabei ist günstig, dass ein USB-C Anschluss ein standardisierter und weit verbreiteter Anschluss von Ladegeräten zum Laden bzw. zum Herstellen einer elektrisch leitenden Verbindung ist und folglich mittels des Verbindungsadapters diese Ladegeräte genutzt werden können. In an advantageous embodiment variant, it is provided that the connection adapter of the connection device on the connection side has a USB-C connection. It is favorable that a USB-C connection is a standardized and widespread connection of charging devices for charging or for establishing an electrically conductive connection and consequently these charging devices can be used by means of the connection adapter.
Ferner ist eine Ausführung günstig, bei welcher der anschlussseitige Verbindungsadapter der Verbindungseinrichtung einen weiteren Energiespeicher, insbesondere eine Powerbank, umfasst. Auf diese Weise ist der Energiespeicher mit dem Verbindungsadapter der Verbindungseinrichtung auch bei größeren Distanzen, bei denen keine Stromquelle verfügbar ist, aufladbar, ohne dass ein Mitführen einer zweiten Originalbatterie nötig ist. Außerdem besteht die Möglichkeit mittels des weiteren Energiespeichers des Verbindungsadapters die gespeicherte Energiemenge auf mehrere Elektrofahrräder zu verteilen. Furthermore, an embodiment is favorable in which the connection adapter of the connection device on the connection side comprises a further energy store, in particular a power bank. In this way, the energy store can be charged with the connection adapter of the connection device even at greater distances where no power source is available, without having to carry a second original battery with you. In addition, there is the possibility of distributing the stored amount of energy to several electric bicycles by means of the additional energy store of the connection adapter.
In einem vorteilhaften Ausführungsbeispiel weist der anschlussseitige Verbindungsadapter der Verbindungseinrichtung einen Anschluss für eine Anhängersteckdose einer Anhängerkupplung auf, insbesondere einen 13- poligen standardisierten Anschluss. Vorteilhaft daran ist, dass eine weitere mobile Lösung für unterwegs bereitgestellt ist, da beispielsweise auf einem Parkplatz vor einer Fahrt mit dem Elektrofahrrad der Energiespeicher aufgeladen werden kann. Dabei ist auch eine Ausführung der Ladeschnittstelle mit einem Stromzähler denkbar, um beispielsweise Elektrofahrräder anderer Personen zu laden und anschließend die gelieferte elektrische Energie abzurechnen. Darüber hinaus ist ein Anschluss des Verbindungsadapters der Verbindungseinrichtung an die Anhängersteckdose der Anhängerkupplung möglich, wenn das Fahrrad an einem Fahrradträger befestigt ist, dieser jedoch keine speziellen Ladeanschluss für ein Elektrofahrrad aufweist. Auf diese Weise kann das Elektrofahrrad mittels der Ladeschnittstelle während einer Fahrt mit einem Kraftfahrzeug gleichzeitig geladen werden. In an advantageous exemplary embodiment, the connection adapter of the connection device on the connection side has a connection for a trailer socket of a trailer hitch, in particular a 13- pin standardized connection. The advantage of this is that another mobile solution is provided for on the go, since the energy storage device can be charged in a parking lot, for example, before a ride with the electric bicycle. An embodiment of the charging interface with an electricity meter is also conceivable, for example in order to charge other people's electric bicycles and then to bill for the electrical energy supplied. In addition, the connection adapter of the connection device can be connected to the trailer socket of the trailer hitch if the bicycle is attached to a bicycle carrier that does not have a special charging connection for an electric bicycle. In this way, the electric bicycle can be charged at the same time using the charging interface while driving a motor vehicle.
In einer weiteren bevorzugten Ausführungsform der Erfindung weisen der Ladeanschluss und der Ladeadapter jeweils zwei Kontaktstellen zur Herstellung einer elektrisch leitenden Verbindung auf. Dabei sind die Kontaktstellen im Wesentlichen rechteckig ausgebildet. In einem Ausführungsbeispiel der Erfindung ist vorgesehen, dass die jeweiligen Kontaktstellen des Ladeadapters im bestimmungsgemäßen Gebrauch die Kontaktstellen des Ladeanschlusses kreuzend kontaktieren, vorzugsweise derart, dass jeweils eine Kontaktstelle des Ladeadapters orthogonal oder unter einem Winkel zwischen 45° und 90° zu jeweils einer Kontaktstelle des Ladeanschlusses verläuft. Vorteilhaft daran ist, dass das Laden des Energiespeichers über die Kontaktstellen an der Fahrradkomponente erfolgt. Dadurch, dass sich die rechteckigen Kontaktstellen kreuzend Kontaktieren, ist trotz eines gewissen Spiels der Anordnung ein Kontakt der Kontaktstellen gewährleistet. In a further preferred embodiment of the invention, the charging connection and the charging adapter each have two contact points for establishing an electrically conductive connection. The contact points are essentially rectangular. In one exemplary embodiment of the invention, it is provided that the respective contact points of the charging adapter cross the contact points of the charging connection when used as intended, preferably in such a way that one contact point of the charging adapter is orthogonal or at an angle of between 45° and 90° to a respective contact point of the charging connection runs. The advantage of this is that the energy store is charged via the contact points on the bicycle component. Due to the fact that the rectangular contact points make contact crossing each other, contact of the contact points is ensured despite a certain amount of play in the arrangement.
Vorzugsweise ist die Ladeschnittstelle derart ausgebildet, dass die Kontaktstellen des Ladeadapters eine spitze oder löffelartig gewölbte Oberfläche aufweisen. In einer vorteilhaften Variante ist erfindungsgemäß vorgesehen, dass die Kontaktstellen des Ladeadapters als jeweils ein Klemmkontakt oder eine federnde Lasche ausgebildet sind. Dabei ist günstig, dass die Kontaktstellen des Ladeadapters bei einem Kontakt mit den Kontaktstellen des Ladeanschlusses über deren Oberfläche derart kratzen, dass Verschmutzungen von den Kontaktstellen des Ladeanschlusses entfernt werden und ein Kontakt zwischen den Kontaktstellen sichergestellt ist. The charging interface is preferably designed in such a way that the contact points of the charging adapter have a pointed surface or a surface that is curved like a spoon. In an advantageous variant, the invention provides that the contact points of the charging adapter as a terminal contact or a resilient tab are formed. It is favorable that the contact points of the charging adapter, when they come into contact with the contact points of the charging connection, scrape the surface thereof in such a way that dirt is removed from the contact points of the charging connection and contact between the contact points is ensured.
In einer weiteren bevorzugten Ausführungsform der Erfindung weisen der Ladeanschluss und der Ladeadapter jeweils eine Ladespule zum Laden mittels elektromagnetischer Induktion zum induktiven Laden auf. Die erfindungsgemäße Ladeschnittstelle ist in einer Ausführungsvariante ausgebildet, dass der Ladeanschluss mit der Ladespule innerhalb des Rahmens des Elektrofahrrads angeordnet ist. Vorteilhaft daran ist, dass kein direkter Kontakt zwischen dem Ladeadapter und dem Ladeanschluss hergestellt werden muss und somit die Ladeschnittstelle flexibler in der Anwendung und Positionierung an dem Elektrofahrrad sowie geschützt im Inneren des Elektrofahrrads angeordnet ist. In a further preferred embodiment of the invention, the charging connection and the charging adapter each have a charging coil for charging by means of electromagnetic induction for inductive charging. The charging interface according to the invention is designed in one embodiment such that the charging connection with the charging coil is arranged inside the frame of the electric bicycle. The advantage of this is that no direct contact has to be established between the charging adapter and the charging connection and the charging interface is therefore arranged more flexibly in use and positioning on the electric bicycle and protected inside the electric bicycle.
Weiter vorteilhaft ist es, wenn der Ladeadapter einen Gleichspannungswandler aufweist, der eine von dem Ladegerät erzeugte Gleichspannung entsprechend in eine für das Laden des Energiespeichers vorbestimmte gleichgerichtete Ladespannung umwandelt. Dabei ist günstig, dass selbst bei verschiedenartigen Ladegeräten immer die für das Laden des Energiespeichers erforderliche bzw. optimale Ladespannung an dem Ladeanschluss anliegt. It is also advantageous if the charging adapter has a DC voltage converter, which correspondingly converts a DC voltage generated by the charging device into a rectified charging voltage predetermined for charging the energy store. It is favorable here that even with different types of charging devices, the charging voltage required or optimal for charging the energy store is always present at the charging connection.
In einem Ausführungsbeispiel der Erfindung ist vorgesehen, dass zumindest der Ladeadapter wenigstens einen Magneten umfasst, mittels dem der Ladeadapter mittels magnetischer Kraft lösbar an der Fahrradkomponente des Elektrofahrrads befestigbar ist. Auf diese Weise ist ein Anschließen des Ladeadapters an das Elektrofahrrad bzw. an den Ladeanschluss für den Nutzer erheblich vereinfacht, da der Ladeadapter nicht in den Ladeanschluss eingesteckt werden muss. Vorzugsweise ist die Ladeschnittstelle derart ausgebildet, dass der Ladeanschluss einen zu dem Magneten korrespondierenden Magneten umfasst, mittels dem der Ladeadapter an einer vorbestimmten Position lösbar an der Fahrradkomponente des Elektrofahrrads befestigbar ist. Dadurch muss der Nutzer den Ladeadapter nicht in den Ladeanschluss einstecken und darüber hinaus erfolgt die Positionierung des Ladeadapters mittels der magnetischen Kraft zwischen den korrespondierenden Magneten automatisch. In an exemplary embodiment of the invention, it is provided that at least the charging adapter comprises at least one magnet, by means of which the charging adapter can be detachably attached to the bicycle component of the electric bicycle by means of magnetic force. In this way, connecting the charging adapter to the electric bicycle or to the charging connection is considerably simplified for the user, since the charging adapter does not have to be plugged into the charging connection. The charging interface is preferably designed in such a way that the charging connection includes a magnet that corresponds to the magnet and by means of which the charging adapter can be detachably attached to the bicycle component of the electric bicycle at a predetermined position. As a result, the user does not have to plug the charging adapter into the charging port and, moreover, the charging adapter is positioned automatically by means of the magnetic force between the corresponding magnets.
In einer weiteren vorteilhaften Variante ist erfindungsgemäß vorgesehen, dass der Ladeadapter zwischen einer Ruheposition, in welcher der Ladeadapter von dem Ladeanschluss beabstandet angeordnet ist, und einer Ladeposition, in welcher der Ladeadapter zum Laden des Energiespeichers mit dem Ladeanschluss verbunden ist, bewegbar, insbesondere rotierbar oder klappbar, an einem positionsfesten Träger gelagert ist. Auf diese Weise ist ein Klappmechanismus bereitgestellt, der beim Herstellen der elektrisch leitenden Verbindung zwischen dem Ladeadapter und dem Ladeanschluss den Ladeadapter in die gewünschte Ladeposition führt. Folglich ist gewährleistet, dass der Ladeadapter richtig positioniert ist. In a further advantageous variant, the invention provides that the charging adapter can be moved, in particular rotated or foldable, is mounted on a fixed carrier. In this way, a folding mechanism is provided which guides the charging adapter into the desired charging position when the electrically conductive connection is established between the charging adapter and the charging connection. This ensures that the charging adapter is correctly positioned.
Die erfindungsgemäße Ladeschnittstelle ist in einer Ausführungsvariante derart ausgebildet, dass der Träger ein Fahrradständer ist. Vorteilhaft daran ist, dass ein Fahrradständer üblicherweise zum Abstellen des Elektrofahrrads an öffentlichen Orten oder Zuhause genutzt wird. Dementsprechend ist das Abstellen des Elektrofahrrads mit dem Aufladen des Energiespeichers kombiniert. In one embodiment variant, the charging interface according to the invention is designed in such a way that the carrier is a bicycle stand. The advantage of this is that a bike stand is usually used to park the electric bike in public places or at home. Accordingly, parking the electric bicycle is combined with charging the energy store.
Darüber hinaus ist in einem bevorzugten Ausführungsbeispiel vorgesehen, dass der Träger ein Fahrradträger ist, insbesondere ein Heckträger oder ein Kupplungsträger für eine Anhängerkupplung. Dabei ist günstig, dass das Elektrofahrrad mittels der Ladeschnittstelle während einer Fahrt mit einem Kraftfahrzeug geladen werden kann. Darüber hinaus ist auch ein Laden mit dem Kraftfahrzeug möglich, wenn keine anderweitige Energiequelle vorhanden bzw. erreichbar ist, wie beispielsweise bei einem Ausflug in die Berge. In addition, it is provided in a preferred exemplary embodiment that the carrier is a bicycle carrier, in particular a rear carrier or a carrier for a trailer hitch. It is favorable that the electric bicycle can be charged using the charging interface while driving a motor vehicle. In addition, there is also a shop with the motor vehicle possible if no other energy source is available or accessible, such as on a trip to the mountains.
In einer alternativen Ausführung der vorliegenden Ladeschnittstelle ist ferner vorgesehen, dass zwischen dem positionsfesten Träger und dem Ladeadapter eine Feder angeordnet ist, die eine Federkraft auf den Ladeadapter ausübt, wenn der Ladeadapter nicht in der Ladeposition angeordnet ist. Dadurch ist ein mechanischer Mechanismus zum automatischen Herstellen der Verbindung zwischen dem Ladeadapter und dem Ladeanschluss bereitgestellt. In an alternative embodiment of the present charging interface, provision is also made for a spring to be arranged between the stationary carrier and the charging adapter, which spring exerts a spring force on the charging adapter when the charging adapter is not arranged in the charging position. This provides a mechanical mechanism for automatically establishing the connection between the charging adapter and the charging port.
Erfindungsgemäß wird ferner ein Verfahren zum Laden eines Energiespeichers eines Elektrofahrrads mit einer Ladeschnittstelle entsprechend der vorstehenden Offenbarung vorgeschlagen, das ein Positionieren des Elektrofahrrads an dem Träger umfasst. Dabei ist eine Position des Ladeanschluss in einer gleichen relativen Höhe vom Boden angeordnet, wie eine Position des Ladeadapters, sodass eine Kontaktierung zwischen dem Ladeanschluss und dem Ladeadapter beim Positionieren des Elektrofahrrads an dem Träger erfolgt, ohne dass es eines manuellen Steckvorgangs bedarf. Vorteilhaft daran ist, dass der Nutzer des Elektrofahrrads beim Positionieren des Elektrofahrrads an dem Träger, insbesondere an dem Fahrradständer, nicht auf eine Positionierung des Ladeadapters achten muss, da diese Positionierung hinsichtlich des Ladeanschlusses automatisch erfolgt. According to the invention, a method for charging an energy store of an electric bicycle with a charging interface according to the above disclosure is also proposed, which comprises positioning the electric bicycle on the carrier. A position of the charging connection is arranged at the same relative height from the ground as a position of the charging adapter, so that contact is made between the charging connection and the charging adapter when the electric bicycle is positioned on the carrier without a manual plugging process being required. The advantage of this is that the user of the electric bicycle does not have to pay attention to the positioning of the charging adapter when positioning the electric bicycle on the carrier, in particular on the bicycle stand, since this positioning takes place automatically with regard to the charging connection.
Andere vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet bzw. werden nachstehend zusammen mit der Beschreibung der bevorzugten Ausführung der Erfindung anhand der Figuren näher dargestellt. Es zeigen: Other advantageous developments of the invention are characterized in the dependent claims or are presented in more detail below together with the description of the preferred embodiment of the invention with reference to the figures. Show it:
Fig. 1 eine schematische Darstellung einer Ladeschnittstelle eines Energiespeichers eines Elektrofahrrads, 1 shows a schematic representation of a charging interface of an energy store of an electric bicycle,
Fig. 2 eine schematische Darstellung einer weiteren Ladeschnittstelle eines Energiespeichers eines Elektrofahrrads, 2 shows a schematic representation of a further charging interface an energy storage device of an electric bicycle,
Fig. 3 eine schematische Darstellung einer Verbindungseinrichtung einer Ladeschnittstelle eines Energiespeichers eines Elektrofahrrads und 3 shows a schematic representation of a connection device of a charging interface of an energy store of an electric bicycle and
Fig. 4 eine schematische Darstellung einer weiteren Verbindungseinrichtung einer Ladeschnittstelle eines Energiespeichers eines Elektrofahrrads. 4 shows a schematic representation of a further connection device of a charging interface of an energy store of an electric bicycle.
In Figur 1 ist eine schematische Darstellung einer Ladeschnittstelle 1 eines Energiespeichers 2 eines Elektrofahrrads 3 mit einer eine flexible Leitung aufweisenden Verbindungseinrichtung 10 sowie einem energiespeicherseitigen Ladeanaschluss 4 dargestellt. Dabei ist der Ladeanschluss 4 elektrisch leitend mit dem Energiespeicher 2 des Elektrofahrrads 3 verbunden und an einer Fahrradkomponente 31 , die ein Rahmen des Elektrofahrrads 3 ist, angeordnet. Der Energiespeicher 2 ist innerhalb der Fahrradkomponente 31 (hier dem Fahrradrahmen) angeordnet. FIG. 1 shows a schematic representation of a charging interface 1 of an energy store 2 of an electric bicycle 3 with a connecting device 10 having a flexible line and a charging connection 4 on the energy store side. In this case, the charging connection 4 is electrically conductively connected to the energy store 2 of the electric bicycle 3 and is arranged on a bicycle component 31 , which is a frame of the electric bicycle 3 . The energy store 2 is arranged within the bicycle component 31 (here the bicycle frame).
Die Verbindungseinrichtung 10 ist anschlussseitig derart ausgebildet, dass diese elektrisch leitend mit einem Ladegerät 6 verbunden ist, welches an eine Stromquelle angeschlossen ist. Ferner weist die Verbindungseinrichtung 10 einen fahrradseitigen Ladeadapter 5 und einen anschlussseitigen Verbindungsadapter 11 auf. The connecting device 10 is designed on the connection side in such a way that it is electrically conductively connected to a charging device 6 which is connected to a power source. Furthermore, the connection device 10 has a charging adapter 5 on the bicycle side and a connection adapter 11 on the connection side.
Außerdem ist die Verbindungseinrichtung 10 derart lösbar an der Fahrradkomponente 31 befestigt, dass ein resultierender Stromfluss im Ladeanschluss 4 den Energiespeicher 2 des Elektrofahrrads 3 lädt. Hierfür weisen der Ladeanschluss 4 und der Ladeadapter 5 jeweils eine Ladespule 42, 52 zum Laden mittels elektromagnetischer Induktion zum induktiven Laden auf. Der Ladeanschluss 4 mit der Ladespule 42 ist innerhalb der Fahrradkomponente 31 des Elektrofahrrads 3 angeordnet. Darüber hinaus weist der Ladeadapter 5 einen Gleichspannungswandler 53 auf, der eine von dem Ladegerät 6 erzeugte Gleichspannung entsprechend in eine für das Laden des Energiespeichers 2 vorbestimmte gleichgerichtete Ladespannung umwandelt. Der Gleichspannungswandler kann dabei so ausgebildet sein, dass er die erforderliche Ladespannung über eine Kommunikation mit dem Energiespeicher 2 erhält bzw. dass diese über eine Bedieneroberfläche einstellbar oder auswählbar ist. In addition, the connecting device 10 is detachably attached to the bicycle component 31 in such a way that a resulting flow of current in the charging connection 4 charges the energy store 2 of the electric bicycle 3 . For this purpose, the charging connection 4 and the charging adapter 5 each have a charging coil 42, 52 for charging by means of electromagnetic induction for inductive charging. The charging connector 4 with the charging coil 42 is arranged inside the bicycle component 31 of the electric bicycle 3 . In addition, the charging adapter 5 has a DC voltage converter 53 which converts a DC voltage generated by the charging device 6 into a rectified charging voltage predetermined for charging the energy store 2 . The DC-DC converter can be designed in such a way that it receives the required charging voltage via communication with the energy store 2 or that this can be set or selected via a user interface.
Der Ladeadapter 5 umfasst einen Magneten 7 durch den der Ladeadapter 5 mittels magnetischer Kraft lösbar an der Fahrradkomponente 31 des Elektrofahrrads 3 befestigt ist. Des Weiteren umfasst der Ladeanschluss 4 einen zu dem Magneten 7 korrespondierenden Magneten 8 mittels dem der Ladeadapter 5 an einer vorbestimmten Position lösbar an der Fahrradkomponente 31 des Elektrofahrrads 3 befestigt ist. The charging adapter 5 includes a magnet 7 by means of which the charging adapter 5 is detachably attached to the bicycle component 31 of the electric bicycle 3 by means of magnetic force. Furthermore, the charging connection 4 includes a magnet 8 corresponding to the magnet 7 , by means of which the charging adapter 5 is detachably attached to the bicycle component 31 of the electric bicycle 3 at a predetermined position.
Figur 2 zeigt eine schematische Darstellung einer weiteren Ladeschnittstelle 1 eines Energiespeichers 2 eines Elektrofahrrads 3. Die in Figur 2 gezeigte Ladeschnittstelle 1 weist ebenfalls die Verbindungseinrichtung 10 mit einem fahrradseitigen Ladeadapter 5 und einen anschlussseitigen Verbindungsadapter 11 auf. Außerdem ist die Verbindungseinrichtung 10 wiederum derart lösbar an der Fahrradkomponente 31 befestigt, dass ein resultierender Stromfluss im Ladeanschluss 4 den Energiespeicher 2 des Elektrofahrrads 3 lädt. FIG. 2 shows a schematic representation of a further charging interface 1 of an energy store 2 of an electric bicycle 3. The charging interface 1 shown in FIG. In addition, the connecting device 10 is in turn releasably attached to the bicycle component 31 in such a way that a resulting current flow in the charging connection 4 charges the energy store 2 of the electric bicycle 3 .
Der Ladeanschluss 4 und der Ladeadapter 5 weisen zum Laden jeweils zwei Kontaktstellen 41 , 51 zur Herstellung einer elektrisch leitenden Verbindung auf. Dabei sind die Kontaktstellen 41 , 51 im Wesentlichen rechteckig ausgebildet. Außerdem kontaktieren die jeweiligen Kontaktstellen 51 des Ladeadapters 5 die Kontaktstellen 41 des Ladeanschlusses 4 kreuzend. Die in Figur 2 dargestellte Ladeschnittstelle 1 ist derart ausgebildet, dass jeweils eine Kontaktstelle 51 des Ladeadapters 5 orthogonal zu jeweils einer Kon- taktstelle 41 des Ladeanschlusses 4 verläuft. Die Kontaktstellen 51 des Ladeadapters 5 sind ferner als jeweils ein Klemmkontakt ausgebildet. The charging connection 4 and the charging adapter 5 each have two contact points 41, 51 for establishing an electrically conductive connection. The contact points 41, 51 are essentially rectangular. In addition, the respective contact points 51 of the charging adapter 5 make contact with the contact points 41 of the charging connection 4 in a crossing manner. The charging interface 1 shown in FIG. 2 is designed such that a contact point 51 of the charging adapter 5 is orthogonal to a respective contact clock point 41 of the charging connection 4 runs. The contact points 51 of the charging adapter 5 are also each designed as a clamping contact.
In Figur 3 ist eine schematische Darstellung einer Verbindungseinrichtung 10 einer Ladeschnittstelle 1 eines Energiespeichers 2 eines Elektrofahrrads 3 gezeigt. Die Verbindungseinrichtung 10 weist einen fahrradseitigen Ladeadapter 5 und einen anschlussseitigen Verbindungsadapter 11 auf. In Figur 3 ist lediglich der anschlussseitige Verbindungsadapter 11 dargestellt. Dieser umfasst einen Universalanschluss 12, der für den Anschluss einer Vielzahl von verschiedenartigen Ladegeräten ausgebildet ist. Außerdem weist der anschlussseitige Verbindungsadapter 11 der Verbindungseinrichtung 10 einen USB-C Anschluss 13 auf. FIG. 3 shows a schematic representation of a connecting device 10 of a charging interface 1 of an energy store 2 of an electric bicycle 3 . The connection device 10 has a charging adapter 5 on the bicycle side and a connection adapter 11 on the connection side. Only the connection adapter 11 on the connection side is shown in FIG. This includes a universal connector 12, which is designed for connecting a variety of different types of chargers. In addition, the connection adapter 11 of the connection device 10 on the connection side has a USB-C connection 13 .
Figur 4 zeigt eine schematische Darstellung einer weiteren Verbindungseinrichtung 10 einer Ladeschnittstelle 1 eines Energiespeichers 2 eines Elektrofahrrads 3. Die Verbindungseinrichtung 10 weist wiederum einen fahrradseitigen Ladeadapter 5 und einen anschlussseitigen Verbindungsadapter 11 auf. Der Ladeadapter 5 ist als ein Stecker für den Ladeanschluss 4 ausgebildet. Darüber hinaus umfasst der anschlussseitige Verbindungsadapter 11 der Verbindungseinrichtung 10 einen weiteren Energiespeicher 110 mit einem USB-C Anschluss 13, dar als eine Powerbank ausgebildet ist. FIG. 4 shows a schematic representation of a further connection device 10 of a charging interface 1 of an energy store 2 of an electric bicycle 3. The connection device 10 in turn has a charging adapter 5 on the bicycle side and a connection adapter 11 on the connection side. The charging adapter 5 is designed as a plug for the charging connection 4 . In addition, the connection adapter 11 of the connection device 10 on the connection side comprises a further energy store 110 with a USB-C connection 13, which is designed as a power bank.
Die Erfindung beschränkt sich in ihrer Ausführung nicht auf die vorstehend angegebenen bevorzugten Ausführungsbeispiele. Vielmehr ist eine Anzahl von Varianten denkbar, welche von der dargestellten Lösung auch bei grundsätzlich anders gearteten Ausführungen Gebrauch macht. The implementation of the invention is not limited to the preferred exemplary embodiments specified above. Rather, a number of variants are conceivable which make use of the solution shown even in the case of fundamentally different designs.
* * * * * * * * * *

Claims

Patentansprüche patent claims
1. Ladeschnittstelle (1) eines Energiespeichers (2) eines Elektrofahrrads (3) mit einer eine flexible Leitung aufweisenden Verbindungseinrichtung (10) sowie einem energiespeicherseitigen Ladeanaschluss (4), wobei der Ladeanschluss (4) elektrisch leitend mit dem Energiespeicher (2) verbunden und an einer Fahrradkomponente (31), insbesondere einem Rahmen des Elektrofahrrads (3), angeordnet ist, wobei die Verbindungseinrichtung (10) anschlussseitig derart ausgebildet ist, dass diese elektrisch leitend mit einem Ladegerät (6) verbindbar ist, das mit einer Stromquelle verbindbar ist, wobei die Verbindungseinrichtung (10) derart lösbar an der Fahrradkomponente (31) befestigbar ist, dass ein resultierender Stromfluss im Ladeanschluss (4) den Energiespeicher (2) des Elektrofahrrads (3) lädt. 1. Charging interface (1) of an energy store (2) of an electric bicycle (3) with a connecting device (10) having a flexible line and a charging connection (4) on the energy store side, the charging connection (4) being electrically conductively connected to the energy store (2) and is arranged on a bicycle component (31), in particular a frame of the electric bicycle (3), the connection device (10) being designed on the connection side in such a way that it can be electrically conductively connected to a charger (6) which can be connected to a power source, wherein the connecting device (10) can be releasably attached to the bicycle component (31) in such a way that a resulting current flow in the charging connection (4) charges the energy store (2) of the electric bicycle (3).
2. Ladeschnittstelle (1) gemäß Anspruch 1 , wobei die Verbindungseinrichtung (10) einen fahrradseitigen Ladeadapter (5) und einen anschlussseitigen Verbindungsadapter (11) aufweist. 2. Charging interface (1) according to claim 1, wherein the connecting device (10) has a bicycle-side charging adapter (5) and a connection-side connection adapter (11).
3. Ladeschnittstelle (1) gemäß Anspruch 2, wobei der anschlussseitige Verbindungsadapter (11) der Verbindungseinrichtung (10) einen Universalanschluss (12) aufweist, der für den Anschluss einer Vielzahl von verschiedenartigen Ladegeräten ausgebildet ist. 3. Charging interface (1) according to claim 2, wherein the connection-side connection adapter (11) of the connection device (10) has a universal connection (12) which is designed for the connection of a large number of different types of charging devices.
4. Ladeschnittstelle (1) gemäß Anspruch 2 oder 3, wobei der anschlussseitige Verbindungsadapter (11 ) der Verbindungseinrichtung (10) einen USB-C Anschluss (13) aufweist. 4. Charging interface (1) according to claim 2 or 3, wherein the connection-side connection adapter (11) of the connection device (10) has a USB-C connection (13).
5. Ladeschnittstelle (1) gemäß einem der vorhergehenden Ansprüche 2 bis 4, wobei der anschlussseitige Verbindungsadapter (11) der Ver- bindungseinrichtung (10) einen weiteren Energiespeicher (110), insbesondere eine Powerbank, umfasst. . Ladeschnittstelle (1) gemäß einem der vorhergehenden Ansprüche 2 bis 5, wobei der anschlussseitige Verbindungsadapter (11) der Verbindungseinrichtung (10) einen Anschluss für eine Anhängersteckdose einer Anhängerkupplung aufweist, insbesondere einen 13-poligen standardisierten Anschluss. . Ladeschnittstelle (1) gemäß Anspruch 2, wobei der Ladeanschluss (4) und der Ladeadapter (5) jeweils zwei Kontaktstellen (41 , 51) zur Herstellung einer elektrisch leitenden Verbindung aufweisen, wobei die Kontaktstellen (41 , 51) im Wesentlichen rechteckig ausgebildet sind. . Ladeschnittstelle (1) gemäß Anspruch 7, wobei die jeweiligen Kontaktstellen (51) des Ladeadapters (5) im bestimmungsgemäßen Gebrauch die Kontaktstellen (41) des Ladeanschlusses (4) kreuzend kontaktieren, vorzugsweise derart, dass jeweils eine Kontaktstelle (51) des Ladeadapters (5) orthogonal oder unter einem Winkel zwischen 45° und 90° zu jeweils einer Kontaktstelle (41) des Ladeanschlusses (4) verläuft. . Ladeschnittstelle (1) gemäß einem der Ansprüche 7 oder 8, wobei die Kontaktstellen (51) des Ladeadapters (5) eine spitze oder löffelartig gewölbte Oberfläche aufweisen. 5. Charging interface (1) according to any one of the preceding claims 2 to 4, wherein the connector-side connection adapter (11) of the Ver- Binding device (10) comprises a further energy store (110), in particular a power bank. . Charging interface (1) according to one of the preceding claims 2 to 5, wherein the connection-side connection adapter (11) of the connection device (10) has a connection for a trailer socket of a trailer hitch, in particular a 13-pin standardized connection. . Charging interface (1) according to claim 2, wherein the charging connection (4) and the charging adapter (5) each have two contact points (41, 51) for producing an electrically conductive connection, the contact points (41, 51) being essentially rectangular. . Charging interface (1) according to claim 7, wherein the respective contact points (51) of the charging adapter (5) make crossing contact with the contact points (41) of the charging connection (4) when used as intended, preferably in such a way that one contact point (51) of the charging adapter (5 ) orthogonally or at an angle of between 45° and 90° to a respective contact point (41) of the charging connection (4). . Charging interface (1) according to one of claims 7 or 8, wherein the contact points (51) of the charging adapter (5) have a pointed or spoon-like curved surface.
10. Ladeschnittstelle (1 ) gemäß einem der Ansprüche 7 oder 8, wobei die Kontaktstellen (51) des Ladeadapters (5) als jeweils ein Klemmkontakt oder eine federnde Lasche ausgebildet sind. 10. charging interface (1) according to any one of claims 7 or 8, wherein the contact points (51) of the charging adapter (5) are each designed as a clamping contact or a resilient tab.
11 .Lageschnittstelle (1) gemäß Anspruch 2, wobei der Ladeanschluss (4) und der Ladeadapter (5) jeweils eine Ladespule (42, 52) zum Laden mittels elektromagnetischer Induktion zum induktiven Laden aufwei- - 14 - sen. 11. Location interface (1) according to claim 2, wherein the charging connector (4) and the charging adapter (5) each have a charging coil (42, 52) for charging by means of electromagnetic induction for inductive charging. - 14 - sen.
12. Ladeschnittstelle (1) gemäß dem vorhergehenden Anspruch, wobei der Ladeanschluss (4) mit der Ladespule (42) innerhalb der Fahrradkomponente (31) des Elektrofahrrads (3) angeordnet ist. 12. Charging interface (1) according to the preceding claim, wherein the charging connection (4) with the charging coil (42) is arranged within the bicycle component (31) of the electric bicycle (3).
13. Ladeschnittstelle (1) gemäß einem der vorhergehenden Ansprüche 7 bis 12, wobei der Ladeadapter (5) einen Gleichspannungswandler (53) aufweist, der eine von dem Ladegerät (6) erzeugte Gleichspannung entsprechend in eine für das Laden des Energiespeichers (2) vorbestimmte gleichgerichtete Ladespannung umwandelt. 13. Charging interface (1) according to one of the preceding claims 7 to 12, wherein the charging adapter (5) has a DC-DC converter (53) which converts a DC voltage generated by the charger (6) into a predetermined voltage for charging the energy store (2). rectified charging voltage.
14. Ladeschnittstelle (1) gemäß einem der vorhergehenden Ansprüche 7 bis 13, wobei zumindest der Ladeadapter (5) wenigstens einen Magneten (7) umfasst, mittels dem der Ladeadapter (5) mittels magnetischer Kraft lösbar an der Fahrradkomponente (31) des Elektrofahrrads (3) befestigbar ist. 14. Charging interface (1) according to one of the preceding claims 7 to 13, wherein at least the charging adapter (5) comprises at least one magnet (7), by means of which the charging adapter (5) can be detachably attached to the bicycle component (31) of the electric bicycle ( 3) is attachable.
15. Ladeschnittstelle (1) gemäß dem vorhergehenden Anspruch, wobei der Ladeanschluss (4) einen zu dem Magneten (7) korrespondierenden Magneten (8) umfasst, mittels dem der Ladeadapter (5) an einer vorbestimmten Position lösbar an der Fahrradkomponente (31) des Elektrofahrrads (3) befestigbar ist. 15. Charging interface (1) according to the preceding claim, wherein the charging connection (4) comprises a magnet (8) corresponding to the magnet (7), by means of which the charging adapter (5) can be detachably attached to the bicycle component (31) of the bicycle at a predetermined position Electric bicycle (3) can be attached.
16. Ladeschnittstelle (1) gemäß einem der vorhergehenden Ansprüche 7 bis 15, wobei der Ladeadapter (5) zwischen einer Ruheposition, in welcher der Ladeadapter (5) von dem Ladeanschluss (4) beabstandet angeordnet ist, und einer Ladeposition, in welcher der Ladeadapter (5) zum Laden des Energiespeichers (2) mit dem Ladeanschluss (4) verbunden ist, bewegbar, insbesondere rotierbar oder klappbar, an einem positionsfesten Träger (9) gelagert ist. 16. Charging interface (1) according to any one of the preceding claims 7 to 15, wherein the charging adapter (5) is arranged between a rest position, in which the charging adapter (5) is spaced from the charging connection (4), and a charging position, in which the charging adapter (5) is connected to the charging connection (4) for charging the energy store (2), is movably, in particular rotatably or foldably, mounted on a fixed carrier (9).
17. Ladeschnittstelle (1) gemäß dem vorhergehenden Anspruch, wobei - 15 - der Träger (9) ein Fahrradständer ist. 17 charging interface (1) according to the preceding claim, wherein - 15 - the carrier (9) is a bicycle stand.
18. Ladeschnittstelle (1) gemäß dem vorhergehenden Anschluss 16, wobei der Träger (9) ein Fahrradträger ist, insbesondere ein Heckträger oder ein Kupplungsträger für eine Anhängerkupplung. 19. Ladeschnittstelle (1) gemäß einem der Ansprüche 16 bis 18, wobei zwischen dem positionsfesten Träger (9) und dem Ladeadapter (5) eine Feder angeordnet ist, die eine Federkraft auf den Ladeadapter (5) ausübt, wenn der Ladeadapter nicht in der Ladeposition angeordnet ist. 20. Verfahren zum Laden eines Energiespeichers (2) eines Elektrofahrrads (3) mit einer Ladeschnittstelle (1) gemäß einem der Ansprüche 16 bis 19, das ein Positionieren des Elektrofahrrads (3) an dem Träger umfasst, wobei eine Position des Ladeanschluss (4) in einer gleichen relativen Höhe vom Boden angeordnet ist, wie eine Position des La- deadapters (5), sodass eine Kontaktierung zwischen dem Ladeanschluss (4) und dem Ladeadapter (5) erfolgt, ohne dass es eines manuellen Steckvorgangs bedarf. 18. Charging interface (1) according to the preceding connection 16, wherein the carrier (9) is a bicycle carrier, in particular a rear carrier or a carrier for a trailer hitch. 19. Charging interface (1) according to one of claims 16 to 18, wherein a spring is arranged between the positionally fixed carrier (9) and the charging adapter (5), which exerts a spring force on the charging adapter (5) when the charging adapter is not in the Loading position is arranged. 20. A method for charging an energy store (2) of an electric bicycle (3) with a charging interface (1) according to any one of claims 16 to 19, which comprises positioning the electric bicycle (3) on the carrier, with a position of the charging connection (4) is arranged at the same relative height from the ground as a position of the charging adapter (5), so that contact is made between the charging connection (4) and the charging adapter (5) without the need for a manual plug-in process.
* * * * * * * * * *
EP21724263.5A 2020-10-08 2021-05-06 Charging interface for an electric bicycle Pending EP4178825A1 (en)

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DE102020126395.3A DE102020126395B3 (en) 2020-10-08 2020-10-08 Charging interface of an energy store of an electric bicycle and method for charging an energy store
PCT/EP2021/061966 WO2022073652A1 (en) 2020-10-08 2021-05-06 Charging interface for an electric bicycle

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DE102022117837A1 (en) 2022-07-18 2024-01-18 Bayerische Motoren Werke Aktiengesellschaft Bicycle and bicycle holder

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