WO2022136116A1 - Ladekabel und verfahren zum aufladen eines elektrofahrzeugs - Google Patents
Ladekabel und verfahren zum aufladen eines elektrofahrzeugs Download PDFInfo
- Publication number
- WO2022136116A1 WO2022136116A1 PCT/EP2021/086215 EP2021086215W WO2022136116A1 WO 2022136116 A1 WO2022136116 A1 WO 2022136116A1 EP 2021086215 W EP2021086215 W EP 2021086215W WO 2022136116 A1 WO2022136116 A1 WO 2022136116A1
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- WO
- WIPO (PCT)
- Prior art keywords
- adapter
- locking
- charging
- connection
- charging cable
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 70
- 230000004913 activation Effects 0.000 claims 1
- 238000013475 authorization Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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- 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
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
-
- 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 present invention relates to a charging cable and a method for charging an electrical consumer, in particular an electric vehicle.
- charging cables are known whose mains-side connection can be exchanged using an adapter arrangement. This makes it easy to use different connections on the mains side, such as single-phase Schuko connectors, three-phase CEE connectors or I EC type 2 adapters, which means that the charging cable can be adapted to the charging or connection options that are currently available can be adjusted.
- a charging cable according to the invention in particular for charging an electric vehicle, comprises a mains-side first connection for connecting the charging cable to a Power supply, a consumer-side second connection for connecting the charging cable to a consumer, in particular to the electric vehicle, and an adapter arrangement between the first connection and the second connection of the charging cable.
- the adapter arrangement in turn comprises a first adapter element and a second adapter element which are detachably connected to one another, one of the first and second adapter elements being electrically connected to the first connection and the other of the first and second adapter elements being electrically connected to the second connection is.
- the adapter arrangement comprises a locking device which is set up to automatically lock the first and the second adapter element with one another in a connected state in response to an event associated with the charging process.
- a charging cable is provided whose mains-side first connection can be easily replaced by disconnecting the adapter arrangement, while the automatic locking of the adapter arrangement by means of the locking device saves a user from having to manually secure and unlock the adapter arrangement to replace the first connection.
- This contributes significantly to the ease of use of the charging cable, especially in snow, ice, cold or dirt.
- the charging cable is protected against unwanted manipulation in the area of the adapter arrangement, e.g. B. secured by unauthorized separation of the same.
- the adapter assembly When connected, the adapter assembly connects the first and second ports both physically and electrically.
- the first and the second adapter element are engaged with one another, for example by manually plugging the first and the second adapter element together.
- the engagement of the first and second adapter members is releasable, for example by manually pulling the first and second adapter members apart.
- the connection and disconnection of the first and the second adapter element preferably takes place in one connection direction.
- One of the first and the second adapter element can be designed as a plug and the other of the first and second adapter element can be designed as a corresponding socket.
- the first and the second adapter element are at least temporarily locked to one another by means of the locking device.
- the locking takes place automatically and thus without manual actuation of the locking device by the user.
- the locking device is also set up to unlock the first and the second adapter element automatically or by remote control.
- the event associated with the loading process on which the automatic locking occurs is an event related to the loading process. This means that locking only takes place when the user has connected the charging cable or started the charging process. Until then, the charging cable can be handled as desired without impeding the user due to premature or uncontrollable locking. Nevertheless, a safe and reliable locking is guaranteed.
- the event can be related directly to the charging process, for example starting the charging process.
- the charging process can start automatically as soon as the charging cable is connected to the mains and the consumer.
- the charging process can also be started automatically at a specific time or after a specific delay.
- the charging process can also be started by the user, for example by making a corresponding entry at a charging control device or a charging station.
- the event associated with the charging process can also be the connection of the first and the second adapter element or the connection of the second connection to the vehicle.
- the charging cable is put into a state in which it enables the charging process.
- the fact that the locking device locks the first and the second adapter element automatically means that the locking device initiates locking independently of a user input or (remote) actuation of the locking device by the user.
- the locking device is set up to automatically lock the first and the second adapter element depending on the event associated with the charging process, in particular depending on the start of the charging process or an event that enables the charging process to start.
- the time of the automatic locking and, if necessary, unlocking can be adjustable.
- the locking device preferably locks the first and the second adapter element from the start of a loading process until the locking device is released. For example, the locking device is set up to automatically lock the first and the second adapter element as soon as the second connection is connected to a vehicle.
- first connection can be connected to one of the first and second adapter elements by means of a first charging cable section
- second connection can be connected to the other of the first and second adapter elements by means of a second charging cable section.
- first charging cable section can be connected to one of the first and second adapter elements by means of a first charging cable section
- second connection can be connected to the other of the first and second adapter elements by means of a second charging cable section.
- respective connection integrally with the associated adapter element.
- the first connection can be a Schuko connector, a CEE connector, an IEC Type 2 adapter or any other domestic or industrial power connector.
- the second port can be an I EC Type 2 adapter, Type 1, CHAdeMO, CCS or similar type of charging ports on the market.
- the locking device is formed in the adapter arrangement so that it is inaccessible from the outside when the first and second adapter elements are in the connected state.
- the locking device cannot be manipulated from the outside when the adapter arrangement is in an intact state, and the first and the second adapter element cannot be unlocked and detached from one another by manual actuation of the locking device. This further increases security.
- first adapter element has a first housing and the second adapter element has a second housing which, in the connected state of the adapter arrangement, terminate with one another, preferably flush with complete each other.
- the locking device is then accommodated in the first and in the second housing and is thereby protected from external access.
- the locking device can preferably be adjusted electrically between a locked state and an unlocked state.
- automatic locking and/or remote-controlled locking or unlocking can be implemented particularly easily, as can be seen from the further description of preferred embodiments herein.
- the locking device is preferably designed to be bistable, so that the current locked state and unlocked state of the locking device is maintained when the locking device is switched off.
- the first and the second adapter element remain locked to one another in the event of a power failure or if the first connection on the mains side is (undesirably) disconnected from the mains.
- the first adapter element comprises a first locking element and the second adapter element comprises a second locking element, wherein in the connected state of the first and the second adapter element the first and the second locking element mechanically engage in one another in a first position and are released from one another in a second position.
- the fact that the first and the second locking element mechanically engage in one another is preferably achieved in that they are connected to one another in a positive or non-positive manner.
- the first and the second locking element can be accommodated in the first and second housing of the respective adapter element. If only one of the first and second locking elements has to be moved in order to move the first and second locking elements between the first and second positions, the respective other locking element can be formed integrally with the respective housing.
- the first position of the first and the second locking element corresponds to the locked state of the locking device and thus of the adapter arrangement.
- the second position of the first and the second locking element corresponds to the unlocked state of the locking device and thus of the adapter arrangement.
- the first and the second locking element are preferably movable relative to one another between the first and the second position.
- the first and the second locking element can be moved in translation or rotation relative to one another.
- a translational movement can take place parallel to the direction of connection or transversely to the direction of connection.
- a rotational movement can take place about an axis which is aligned parallel to the connection direction or transverse to the connection direction. Combined movements are also conceivable.
- one of the first and second locking elements has a groove and the other of the first and second locking elements has a projection which engages in the groove in the first position.
- the groove does not run parallel but transversely, preferably perpendicularly to the connection direction.
- the projection is received in the groove in a form-fitting manner.
- first and the second locking element can each be in the form of a pin or latch which has the groove or the projection on a free end.
- the locking element made up of the first and second locking element, which has the groove can also be formed integrally with the respective adapter element made up of the first and second adapter element, in particular with the housing of the adapter element. The groove is then molded into the housing of the respective adapter element.
- the first and the second locking element each have a catch which engages with one another in the first position.
- the catches preferably have a substantially triangular cross-section.
- the catches are tapered parallel to the connection direction, so that when the first and the second adapter element are connected, they slide along one another in the connection direction on inclined surfaces of the catches until they snap into place. If the first and the second adapter element are aligned with one another in the connection direction, the two catches are each tapered on a side facing one another, that is to say they taper towards one another. In the first position, two surfaces of the catches running essentially perpendicularly to the connection direction are in contact with one another. Thereby are the first and the second adapter element locked and can not be separated from each other parallel to the connection direction.
- the first and the second locking element can be rod-shaped and each have a catch at a free end.
- one of the first and second locking elements can also be formed integrally with the respective adapter element of the first and second adapter element, in particular with the housing of the adapter element. This housing then has a corresponding projection in the form of the catch.
- the first and the second locking element form a bayonet lock.
- one of the first and second locking elements has a sleeve with at least one groove, preferably with two grooves.
- the at least one groove comprises an axial section which extends from an edge of the sleeve facing the other locking element in the axial direction of the sleeve.
- the axial direction is preferably aligned parallel to the connection direction.
- the at least one groove also includes a tangential section which extends in the tangential direction of the sleeve at the end of the axial section.
- the other of the first and second locking element has at least one engagement means, such as. B.
- the at least one engagement means extends in a radial direction with respect to the sleeve.
- the locking element having the engaging means can be formed as a cylindrical (solid) body, a sleeve or a bolt having the at least one engaging means in an end region which is close to the other locking element.
- one of the two locking elements can be formed integrally with the respective adapter element, in particular with the housing of the adapter element.
- the at least one engagement means enters the at least one groove and is displaced along the axial section of the groove.
- the engagement means is then displaced along the tangential section of the groove, as a result of which the bayonet catch is closed.
- the locking device is now in the first position.
- one of the first and second locking elements has an internal thread and the other of the first and second locking elements has an external thread, which engage in one another in the first position.
- the locking element made up of the first and second locking element, which has the external thread is preferably designed as a threaded rod.
- the internal thread can be introduced directly into the other adapter element or into a housing of the same, or it can be formed by a threaded insert or as a sleeve with an internal thread, which is firmly anchored in the adapter element.
- the locking device further comprises an actuator for moving the first and the second locking element relative to each other between the first position and the second position.
- the actuator is preferably designed as an electric motor, a stepper motor or as an electromagnet. If the locking device is electrically adjustable, it is preferably electrically adjustable by means of the actuator.
- the actuating drive causes an actuating movement which is set up to lock and/or unlock the locking device.
- the adjustment movement can be aligned parallel to the direction of connection or transversely to the direction of connection.
- the actuator can be set up to move the first and the second locking element from the first to the second position and/or from the second to the first position.
- first and the second locking element are biased into one of the first and second positions and the actuator moves the first and the second locking element from the biased position to the other of the first and second positions.
- one of the first and second locking members can be moved by the actuator to engage the projection with the groove.
- the locking element from the first and second locking element having the projection may be pivotally mounted.
- the actuating movement of the actuating drive pivots the locking element in the connected state of the adapter arrangement in such a way that the projection engages in the groove of the other of the first and second locking elements.
- the locking element made up of the first and second locking element, which has the projection can also be mounted in a translationally displaceable manner, in particular in a direction perpendicular to the connection direction.
- the actuating movement of the actuator causes the locking element to be displaced in the connected state of the adapter arrangement in such a way that the projection engages in the groove of the other of the first and second locking elements.
- the two latches are biased towards one another transversely to the direction of connection. If the first and the second adapter element are connected, the two detents move along the inclined surfaces against the prestressing force. Once the sloping surfaces end, the biasing force causes the locking elements to engage. This state is maintained even when there is no current.
- the actuating movement of the actuating drive brings about a relative movement between the first and the second locking element from the first to the second position, that is to say essentially transversely to the direction of connection.
- a locking element can be mounted in a pivotable or translationally displaceable manner, and the actuating movement of the actuating drive moves this locking element from the first to the second position.
- the first and the second locking element are rotatable relative to each other about an axis parallel to the connection direction and the actuating movement of the actuator rotates one of the first and second locking element for locking and for unlocking, i.e. from the second to the first position and return.
- a part of a full revolution corresponding to the length of the tangential section of the groove of the bayonet lock is sufficient for this.
- a plurality of turns are required to engage a sufficient number of threads of the male and female threads.
- the charging cable comprises a control device for controlling the locking device, which is connected to the first and/or the second connection and the locking device is communicatively connected.
- the control device is set up to recognize the event linked to the charging process and, in response to the event linked to the charging process, to activate the locking device in such a way that the locking device locks the first and the second adapter element to one another.
- control device is set up to cause the locking device to be moved from the unlocked to the locked state and/or from the locked to the unlocked state or that the first and the second locking element are moved from the second position to the first position and/or be moved from the first to the second position.
- control device preferably controls the actuator.
- the control device can be accommodated in the adapter arrangement, in particular in the one made up of the first and second adapter element, which contains the movable locking element or the actuating drive.
- the control device can also be designed separately and can be arranged, for example, in a charging control device that is permanently connected to the charging cable.
- the adapter arrangement in particular the first and the second adapter element, has a diameter of no more than 200 mm, preferably no more than 100 mm, more preferably no more than 60 mm.
- the adapter arrangement when connected, should have a length of between 50 mm and 500 mm, preferably between 75 mm and 300 mm, more preferably between 100 mm and 200 mm. As a result, the adapter arrangement is designed to be as compact as possible.
- the invention also relates to a mobile charging device for charging an electric vehicle with a charging cable according to the invention.
- the charging device comprises a charging control device for controlling a charging process, which is arranged between one of the first and the second connection and the adapter arrangement.
- the charging control device is set up to control parameters of the charging process, such as the charging power or current intensity.
- the charging control device is preferably arranged between the second connection on the consumer side and the adapter arrangement and with the second connection and that of the first and second adapter element, which is connected to the second connection, electrically connected.
- a method according to the invention for charging an electric vehicle comprises the following steps:
- Providing a charging cable that includes a network-side first connection for connecting the charging cable to a power grid, a consumer-side second connection for connecting the charging cable to the electric vehicle, and an adapter arrangement between the first connection and the second connection of the charging cable, the adapter arrangement comprising a first adapter element and a second adapter member releasably connectable to each other;
- a method for charging an electric vehicle in which a mains-side first connection of the charging cable can be easily replaced by disconnecting the adapter arrangement, while a user is spared manual securing of the adapter arrangement by the automatic locking of the adapter arrangement by means of the locking device.
- This contributes significantly to the ease of use of the charging cable and saves time, especially in snow, ice, cold and dirt.
- the charging cable is secured against unwanted manipulation.
- the method preferably takes place by means of a charging cable according to the invention and therefore includes the provision of a charging cable according to the invention, as described above. All the features and advantages described with regard to the charging cable according to the invention can therefore be transferred analogously to the method and vice versa.
- the method can also be carried out using the described mobile charging device.
- the method preferably also includes unlocking the first and the second adapter element by means of the locking device, the unlocking taking place automatically or by remote operation by a user in response to an event associated with the charging process. This saves the user from having to unlock the adapter arrangement manually, which further increases the ease of use.
- the event associated with the charging process can be the connection of the first and second adapter elements, the connection of the second connector to the vehicle, or the starting of the charging process by a charging device.
- the method preferably includes detecting a connected vehicle, for example using Control Pilot, and locking the first and second adapter elements in response to detecting the vehicle.
- the connected vehicle can be identified by means of the charge control device, which is connected in a communicative manner to the second connection.
- the method includes, for example, locking the first and the second adapter element in response to the charging current being switched through or in response to the user actuating a control element that is used to start the Charging is provided at the charging device or a charging station.
- the event associated with the charging process can be, for example, removing or unplugging the second connector from the vehicle.
- the method then includes detecting that a vehicle is no longer connected, preferably using a control pilot, and unlocking the first and second adapter elements in response to detecting that a vehicle is no longer connected.
- the event associated with the charging process when unlocking can also be the termination of the charging process.
- the authorization should be checked. For example, unlocking may then be in response to confirming the end of charging at the charging device after identifying the User, in response to a payment process at the charging device or in response to the unlocking of the vehicle.
- the method preferably includes remote operation using an actuating element on the first or second connection, using an input device on the charging device, for example on the charging control device, or using a mobile terminal device, such as using an app a smartphone that is communicatively connected to the controller of the locking device. It must be ensured that this is only possible for an authorized operator.
- the operator can be authorized, e.g. by entering a code, by recognizing a fingerprint or by wirelessly recognizing a security feature using RFID, NFC, WLAN, Bluetooth, e.g. by communicating with the user’s smartphone, a vehicle key or tag that the user carries with them.
- the locking or unlocking can take place immediately in response to the event associated with the charging process or after a predetermined time after the event, for example by means of a timer device.
- FIG. 1 schematically shows a charging cable according to the invention and a charging device with the charging cable according to the invention.
- FIG. 2a-c schematically show an adapter arrangement of the charging cable according to FIG. 1 with a locking device according to a first embodiment.
- 3a-c schematically show an adapter arrangement of the charging cable according to FIG. 1 with a locking device according to a second embodiment.
- 4a-d schematically show an adapter arrangement of the charging cable according to FIG. 1 with a locking device according to a third embodiment.
- 5a-c schematically show an adapter arrangement of the charging cable according to FIG. 1 with a locking device according to a fourth embodiment.
- Fig. 1 shows a charging cable 2 according to the invention for charging an electric vehicle 4.
- the charging cable 2 comprises a mains-side first connection 6 for connecting the charging cable 2 to the mains, which is symbolically represented by the socket 8, and a consumer-side second connection 10 for connecting the Charging cable 2 to the electric vehicle 4.
- the charging cable 2 also includes an adapter arrangement 12 between the first connection 6 and the second connection 10 of the charging cable 2.
- the adapter arrangement 12 includes a first adapter element 14 and a second adapter element 16, which are detachably connected to one another and to this end are preferably designed as a plug connection.
- the first and the second adapter element 14, 16 can be connected to one another or detached from one another in a connection direction V.
- the first adapter element 14 is electrically connected to the first connection 6 and the second adapter element 16 is electrically connected to the second connection 10 .
- the first adapter element 14 can be connected to the first connection 6 by means of a first charging cable section 18 and the second adapter element 16 can be connected to the second connection 10 by means of a second charging cable section 20 .
- second connections 10 can be used by means of the adapter arrangement 12 .
- An alternative embodiment of a second connection 6′ is shown as an example, which can be connected to the second adapter element 16 and thus to the rest of the charging cable 2 by means of a first adapter element 14′.
- the second connection 6 is in the form of a Schuko plug, for example, while the further second connection 6′ is in the form of an IEC type 2 adapter. It would also be conceivable to design it as a CE E connector.
- a mobile charging device 22 is provided in that a charging control device 24 is provided for controlling the charging process, which is preferably arranged between the vehicle-side second connection 10 and the second adapter element 16 and is electrically connected to them. As a result, the electric vehicle 4 can be charged particularly well in a mobile manner and independently of a permanently installed charging station.
- the charging control device 24 can be connected in a communicating manner at least to the second connection 10 in order, for example, to recognize whether the second connection 10 is connected to the electric vehicle 4 .
- the adapter arrangement 12 of the charging cable 2 also comprises a locking device 26 which is set up to automatically lock the first and the second adapter element 14, 16 with one another in a connected state of the same.
- a locking device 26 which is set up to automatically lock the first and the second adapter element 14, 16 with one another in a connected state of the same.
- Different embodiments of the locking device 26 are shown in FIGS. 2-5 and described below.
- the charging cable 2 includes a control device 27, which is connected to the first and/or the second connection 6, 10 and the locking device 26 in a communicative manner.
- the charging control device 24 can include the control device 27, as shown in FIG.
- the locking device 26 basically comprises a first locking element 28 and a second locking element 30, the first locking element 28 being associated with the first adapter element 14 and the second locking element 30 being associated with the second adapter element 16.
- the first and second locking elements 28, 30 mechanically engage one another in a first position, while in a second position they are disengaged from one another.
- the first adapter member 14 may include a first housing 32 that receives the first locking member 28 and the second adapter member 16 may include a second housing 34 that receives the second locking member 30 .
- the locking device 26 is configured in the adapter arrangement 12 so that it is inaccessible from the outside when the first and second adapter elements 14, 16 are in the connected state. This can be achieved in a particularly simple manner in that the first and the second housing 32, 34 essentially terminate with one another in the connected state, as shown in FIG. 1, thereby preventing access to the components of the locking device 26.
- a maximum diameter D of the adapter arrangement 12 is marked in FIG. 1 and generally corresponds to the diameter of the first or the second adapter element 14, 16, in particular the diameter of the respective housing 32, 34, as shown by way of example for all embodiments in FIG. 2a . It goes without saying that the housings 32, 34 can also have an oval cross-section, a substantially rectangular or a polygonal cross-section. The diameter D then also corresponds to a width or height of the respective housing.
- the adapter arrangement 12 has a length L parallel to the connection direction V, which is also essentially determined by the dimensions of the housings 32, 34 of the first and second adapter elements 14, 16.
- the adapter assembly 12 is shown schematically enlarged with a locking device 26 according to a first embodiment.
- the first locking member 28 includes a groove 36 and the second locking member 30 includes a protrusion 38 sized to engage the groove 36 .
- the groove 36 preferably runs perpendicularly to the connection direction V.
- the second locking element 30 can also have the groove 36 and the first locking element 28 can have the projection 38 and the following explanations can also be transferred analogously to such an embodiment.
- the adapter assembly 12 is shown in the connected state.
- the projection 38 engages in the groove 36.
- the first and the second locking element 28, 30 are thus parallel to the connection direction V in a form-fitting connection and cannot be separated.
- the adapter arrangement 12 is thus in a locked state.
- the first and second locking elements 28, 30 are disengaged from one another.
- the projection 38 does not engage in the groove 36 and the first and the second adapter element 14, 16 can be parallel to the connection direction V separated and connected to each other.
- the adapter assembly 12 is consequently in an unlocked state.
- the first and second locking members 28, 30 are movable relative to each other between the first and second positions.
- at least one of the first and second locking elements 28, 30 is movably mounted.
- the second locking element 30 can, for example, be mounted pivotably or linearly displaceably perpendicularly to the connection direction V. If the second locking element 30 is mounted pivotably, it is preferably designed as a bolt, with one end of the bolt being mounted accordingly and an opposite free end having the projection 38 .
- a linearly displaceable second locking element 30 can also be designed in the form of a bar. However, it can also be designed only as a pin, which forms the projection 38, as indicated by dashed lines in FIG. 2a.
- the locking device 26 For moving the first and the second locking element 28, 30 between the first position and the second position, the locking device 26 comprises an actuator 40.
- the actuator 40 is preferably accommodated in the adapter element made up of the first and second adapter element 14, 16, in which the movable locking element 28, 30 is located.
- the actuator 40 can be designed, for example, as an electric motor, which pivots or linearly displaces the second locking element 30 .
- the actuator 40 can also be designed as an electromagnet, which moves the second locking element 30 between the first and the second position.
- the second locking element 30 is at least partially magnetic. The actuator 40 can then pull the projection 38 into the groove 36 or push it out of the groove 36 .
- first and second locking elements 28, 30, such as the first locking element 28 here can be formed integrally with the respective housing 32, 34 of the first and second adapter element 14, 16, respectively.
- the respective housing 32, 34 can have either a groove or a projection.
- FIGS. 3a-c A second embodiment of the locking device 26 is shown schematically in FIGS. 3a-c on an enlarged scale.
- the first locking development element 28 has a first detent 42 and the second locking element 30 has a second detent 44 .
- the first and the second notch 42, 44 have a substantially triangular cross-section and are tapered parallel to the connection direction V, so that a tip 42a of the first notch 42 and a tip 44a of the second notch 44 to an open end of the respective adapter element 14, 16 are directed.
- the first and the second locking element 28, 30 have corresponding inclined surfaces 42b, 44b, which run obliquely to the connection direction V.
- the first and the second locking element 28, 30 each have a straight surface 42c, 44c, each of which runs perpendicular to the connecting direction V at an end of the inclined surfaces 42b, 44b remote from the tip 42a, 44a.
- first and second detents 42, 44 engage with one another.
- the straight surfaces 42c, 44c of the first and second catches 42, 44 rest against one another and thus form a form-fitting connection parallel to the connection direction V.
- the first and the second adapter element 14, 16 cannot be separated from one another parallel to the connection direction V and the adapter assembly 12 is in the locked state.
- Fig. 3c the first and the second locking element 28, 30 are shown in the second position in which they are released from each other in the connected state of the adapter elements 14, 16.
- the straight surfaces 42c, 44c of the first and the second detent 42, 44 do not touch and the first and the second adapter element 14, 16 can be separated from one another parallel to the connection direction V and connected to one another.
- the adapter arrangement 12 is consequently in the unlocked state.
- first and/or the second locking element 28, 30 can be mounted in a pivotable or linearly displaceable manner analogously to the first embodiment and can be moved between the first and the second position by means of the actuating drive 40.
- one of the first and second locking elements 28, 30, which is not movably mounted, can be formed integrally with the housing 32, 34 of the respective adapter element 14, 16.
- a biasing element 46 in particular a spring element such as a compression spring, in Is biased substantially perpendicular to the connection direction V.
- the prestressing element 46 exerts a prestressing force F on the respective locking element 28, 30.
- the second locking element 30, which is prestressed by means of the prestressing element 46, is in a rest position. If the first and the second adapter element 14, 16 are connected to one another in the connection direction V, the inclined surfaces 42b, 44b of the first and the second catch 42, 44 first meet and slide off one another. In the process, the second locking element 30 is displaced counter to the prestressing force F of the prestressing element 46, as indicated by the two positions of the second locking element 30 in FIG. 3c. As soon as the inclined surfaces 42b, 44b are no longer supported on one another perpendicularly to the connection direction V, as in FIG.
- the pretensioning element 46 causes the first and the second catch 42, 44 to snap into place.
- the prestressing force F displaces the second catch 44 perpendicularly to the connection direction V, so that the straight surfaces 42c, 44c of the first and second catches 42, 44 abut one another and the locking device 26 is in the first position shown in FIG. 3b.
- the actuator 40 can now move the second locking element 30 back into the second position. This can take place in that the actuating drive 40 mechanically transmits an actuating movement to the second locking element 30 which is aligned perpendicularly to the connection direction V and counter to the prestressing force F.
- the actuator 40 can also be designed as an electromagnet and cause a magnetic force on the second locking element 30 perpendicularly to the connection direction V and counter to the prestressing force F, which is at least partially magnetic.
- the first and the second locking element 28, 30 form a bayonet lock.
- the first locking element 28 is designed as a sleeve which has at least one groove 48 .
- the groove 48 in turn has an axial first groove section 48a which extends in the axial direction parallel to the connection direction V from an edge 50 of the sleeve 28 facing the second adapter element 16 .
- the groove 48 has a tangential second groove section 48b, which is at the end facing away from the edge 50 of the first Groove portion 48a extends in the circumferential direction of the sleeve 28.
- the second locking element 30 has at least one engagement means 52 which is dimensioned in such a way that it can be inserted into the groove 48 and moved along the groove 48 .
- a diameter of the engagement means 52 is at most as large as a width of the groove 48.
- the engagement means 52 is aligned radially with respect to the connection direction V and can be of cylindrical design.
- the second locking element 30 can be designed as a pin which extends parallel to the connection direction V and which has the engagement means 52 in the area of a free end facing the first adapter element 14 .
- a groove 48 and an engagement means 52 are located in a corresponding position in the circumferential direction.
- one of the first and second locking elements 28, 30 can be formed integrally with the housing 32, 34 of the respective adapter element 14, 16.
- the first and the second locking element 28, 30 engage in one another.
- the at least one engagement means 52 is located in the second groove section 48b, preferably at the closed end of the second groove section 48b of the groove 48.
- the first and the second locking element 28, 30 are thereby positively connected to one another parallel to the connection direction V and cannot be separated.
- the adapter arrangement 12 is consequently in the locked state.
- the at least one engagement means 52 is moved into the first groove section 48a, as shown in FIG. 4c.
- the first and the second locking element 28, 30 can now be detached from one another parallel to the connection direction V and moved into the second position according to FIG. 4d.
- the actuator 40 exerts a rotational adjustment movement on one of the first and second locking elements 28, 30 in order to rotate them relative to one another in the circumferential direction between the positions shown in FIGS. 4b and 4c.
- the actuator can rotate the pin 30, but alternatively also the sleeve 28, about an axis parallel to the connection direction V by means of a magnet, electric motor or stepping motor.
- the displacement of the engagement means 52 along the axial first groove portion 48a can take place parallel to the connection direction V together with the connection or disconnection of the first and the second adapter element 14, 16.
- FIGS. 5a-c a fourth embodiment of the locking device 26 is shown schematically in FIGS. 5a-c, in which the first locking element 28 has an external thread and the second locking element 30 has an internal thread corresponding to the external thread.
- the male and female threads are engaged in the first position as shown in Figure 5b.
- the first locking member 28 is a threaded rod and the second locking member 30 is a threaded insert or sleeve with an internal thread that is embedded in the second housing 34 of the second adapter member 16 .
- the first locking element 28 could also easily have an internal thread and the second locking element 30 could have an external thread.
- the actuating drive 40 preferably exerts a rotational actuating movement on the first locking element 28 with an external thread, as a result of which the first locking element 28 can be screwed into the second locking element 30 or out of the second locking element 30 .
- the method for charging an electric vehicle 4 initially includes providing a charging cable 2 with the first and the second connection 6, 10 and the adapter arrangement 12, as described above.
- the first and the second adapter element 14, 16 are connected to each other, preferably plugged together in the connection direction V, as shown in Fig. 1 and Fig. 2b, c, Fig. 3b, c, Fig. 4b-d and Fig. 5b, c .
- the first connection 6 can be connected to the power grid 8 and the second connection 10 can be connected to the electric vehicle 4 (see FIG. 1).
- the method further comprises locking the first and the second adapter element 14, 16 by means of the locking device 26.
- first and second adapter members 14, 16 The locking of the first and second adapter members 14, 16 occurs automatically in response to an event associated with the loading process. Similarly, the first and second adapter members 14, 16 may be unlocked automatically in response to an event associated with the charging process, or by remote operation by a user.
- the unlocking is achieved in particular by moving the first and the second locking element 28, 30 from the first position (see Fig. 2b, 3b, 4b, 5b) to the second position (see Fig. 2c, 3c, 4d, 5c). achieved, whereby the first and the second locking element 28, 30 are released from each other.
- the first and the second adapter element 14, 16 can then be separated from one another parallel to the connection direction V.
- the charging cable and method according to the invention thus ensures that the charging cable 2 or parts thereof cannot be stolen and the charging process cannot be interrupted without authorization. Manual handling of the adapter arrangement 12 or of a locking device 26 on the same by the user is not required, which increases the ease of use.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3202880A CA3202880A1 (en) | 2020-12-21 | 2021-12-16 | Charging cable and method for charging an electric vehicle |
US18/268,766 US20240075830A1 (en) | 2020-12-21 | 2021-12-16 | Charging Cable and Method for Charging an Electric Vehicle |
EP21839972.3A EP4263272A1 (de) | 2020-12-21 | 2021-12-16 | Ladekabel und verfahren zum aufladen eines elektrofahrzeugs |
CN202180092045.4A CN116745166A (zh) | 2020-12-21 | 2021-12-16 | 充电电缆和用于对电动车辆充电的方法 |
Applications Claiming Priority (2)
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DE102020134489.9 | 2020-12-21 | ||
DE102020134489.9A DE102020134489B4 (de) | 2020-12-21 | 2020-12-21 | Ladekabel und Verfahren zum Aufladen eines Elektrofahrzeugs |
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WO2022136116A1 true WO2022136116A1 (de) | 2022-06-30 |
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PCT/EP2021/086215 WO2022136116A1 (de) | 2020-12-21 | 2021-12-16 | Ladekabel und verfahren zum aufladen eines elektrofahrzeugs |
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Country | Link |
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US (1) | US20240075830A1 (de) |
EP (1) | EP4263272A1 (de) |
CN (1) | CN116745166A (de) |
CA (1) | CA3202880A1 (de) |
DE (1) | DE102020134489B4 (de) |
WO (1) | WO2022136116A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010061185A1 (de) * | 2010-12-13 | 2012-06-14 | Küster Holding GmbH | Verriegelungsaktuator für einen elektrischen Steckverbinder |
US20150249307A1 (en) * | 2012-10-19 | 2015-09-03 | Lear Corporation | Electrical Connector Assembly |
US9895987B2 (en) * | 2012-03-14 | 2018-02-20 | Nissan Motor Co., Ltd. | Charging-port control device for electric vehicle |
US20200156492A1 (en) * | 2017-06-28 | 2020-05-21 | Trojan Energy Limited | Apparatus and system for connecting electric vehicles to an electrical network and method of use |
JP2020533738A (ja) * | 2017-09-12 | 2020-11-19 | ニーデール ディエトマール | エネルギー供給デバイスにおいて貯蔵エネルギー源を電気充電するための充電ケーブル及びアダプタ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011007463A1 (de) | 2011-04-15 | 2012-10-18 | BSH Bosch und Siemens Hausgeräte GmbH | Bedienanordnung für ein Haushaltsgerät und Haushaltsgerät |
DE102011007763A1 (de) | 2011-04-20 | 2012-10-25 | Bayerische Motoren Werke Aktiengesellschaft | Adapterkabel zur Wandlung eines an einem Fahrzeugladekabel vorgesehenen Anschlusses eines ersten Typs in einen Anschluss zweiten Typs |
DE102011106335B4 (de) | 2011-07-01 | 2017-05-24 | Volkswagen Aktiengesellschaft | Vorrichtung und Verfahren zum elektrischen Laden eines Elektrofahrzeuges an einer Ladestation |
DE102017131090A1 (de) | 2017-12-22 | 2019-06-27 | Westnetz Gmbh | Ladeadapter |
-
2020
- 2020-12-21 DE DE102020134489.9A patent/DE102020134489B4/de active Active
-
2021
- 2021-12-16 WO PCT/EP2021/086215 patent/WO2022136116A1/de active Application Filing
- 2021-12-16 EP EP21839972.3A patent/EP4263272A1/de active Pending
- 2021-12-16 US US18/268,766 patent/US20240075830A1/en active Pending
- 2021-12-16 CA CA3202880A patent/CA3202880A1/en active Pending
- 2021-12-16 CN CN202180092045.4A patent/CN116745166A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010061185A1 (de) * | 2010-12-13 | 2012-06-14 | Küster Holding GmbH | Verriegelungsaktuator für einen elektrischen Steckverbinder |
US9895987B2 (en) * | 2012-03-14 | 2018-02-20 | Nissan Motor Co., Ltd. | Charging-port control device for electric vehicle |
US20150249307A1 (en) * | 2012-10-19 | 2015-09-03 | Lear Corporation | Electrical Connector Assembly |
US20200156492A1 (en) * | 2017-06-28 | 2020-05-21 | Trojan Energy Limited | Apparatus and system for connecting electric vehicles to an electrical network and method of use |
JP2020533738A (ja) * | 2017-09-12 | 2020-11-19 | ニーデール ディエトマール | エネルギー供給デバイスにおいて貯蔵エネルギー源を電気充電するための充電ケーブル及びアダプタ |
Also Published As
Publication number | Publication date |
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CN116745166A (zh) | 2023-09-12 |
CA3202880A1 (en) | 2022-06-30 |
US20240075830A1 (en) | 2024-03-07 |
DE102020134489B4 (de) | 2022-12-01 |
DE102020134489A1 (de) | 2022-06-23 |
EP4263272A1 (de) | 2023-10-25 |
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