EP3662540A1 - Chargeur et système de boîtier de charge pour charger un véhicule électrique - Google Patents

Chargeur et système de boîtier de charge pour charger un véhicule électrique

Info

Publication number
EP3662540A1
EP3662540A1 EP18738279.1A EP18738279A EP3662540A1 EP 3662540 A1 EP3662540 A1 EP 3662540A1 EP 18738279 A EP18738279 A EP 18738279A EP 3662540 A1 EP3662540 A1 EP 3662540A1
Authority
EP
European Patent Office
Prior art keywords
charging
plug
socket
charging plug
contact
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
EP18738279.1A
Other languages
German (de)
English (en)
Inventor
Peter Hakenberg
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.)
Paxos Consulting and Engineering GmbH and Co KG
Original Assignee
Paxos Consulting and Engineering GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paxos Consulting and Engineering GmbH and Co KG filed Critical Paxos Consulting and Engineering GmbH and Co KG
Publication of EP3662540A1 publication Critical patent/EP3662540A1/fr
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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/005—Electrical coupling combined with fluidic coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4538—Covers sliding or withdrawing in the direction of engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/58—Contacts spaced along longitudinal axis of engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for 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 invention relates to a charging plug according to the preamble of claim 1, comprising a plurality of contact elements for electrical contact of the charging plug with contact elements of a charging socket.
  • the invention further relates to a charging plug charging socket system, comprising such a charging plug and a charging socket, in which the charging plug for producing an electrical contact between contact elements of the charging plug and contact elements of the charging socket is positively inserted.
  • Charging plugs for electrically driven vehicles are known from the prior art, which are formed for connection to a corresponding socket.
  • Such plug-socket connections can be designed in various ways and include, for example, insertion aids, locking mechanisms or other additional features.
  • the electrical contact between the leads of a charging cable and a corresponding charging component of a vehicle is typically made by a plurality of contact elements, with the aim of normalizing their shape and arrangement.
  • a standardized connector system is to be provided for this catfish. It is therefore widely used, for contact between plug and socket as contact elements to use a plurality of contact pins, which are inserted into corresponding contact openings.
  • the contact elements are basically to be dimensioned so that they can transmit sufficiently large charging currents.
  • the contact surface of a contact element must be made larger, the larger the charge current to be transmitted.
  • this object is achieved by a charging plug according to the independent claim 1 geiöst.
  • Advantageous developments of the charging plug will become apparent from the dependent claims 2-6.
  • the object is further achieved by an associated charging plug charging socket system according to claim 7.
  • Advantageous developments of the charging connector charging socket system result from the dependent claims 8-10.
  • the charging plug according to the invention can be used for transmitting a charging current to an electrically operable vehicle.
  • the charging plug can be formed on the vehicle or on a charging cable with which the vehicle is connected when charging.
  • the charging plug has a plurality of contact elements for making electrical contact with the charging plug with contact elements of a suitable charging socket.
  • this charging socket is also formed on the vehicle or on the charging cable.
  • the charging plug has a conical or cylindrical
  • Plug body on the outside in the axial direction distributed a plurality of concentric extending around the plug body contact paths are formed.
  • the contact tracks lie like rings around the plug body.
  • correspondingly shaped contacts of a charging socket can be contacted electrically.
  • the plug body of the charging plug can be formed conical or cylindrical.
  • a receptacle on an associated charging socket is adapted to this shape of the plug body, so that the plug body can be inserted as accurately as possible in this recording.
  • the charging socket in turn has internal contact elements or contact surfaces, which contact the outer contact paths of the plug body electrically in a connection of charging plug and charging socket.
  • the invention thus turns away from conventional charging plugs with a plurality of contact pins, which are inserted into openings of a charging socket in order to contact contacts of the charging socket.
  • the diameter of such pins would have to be increased so much that the dimensions of the charging plug would adversely increase.
  • the invention uses large-area contact tracks on the outside of a plug-in body. On this catfish, the contact surface between the contact elements of the plug and socket with the same connector size can be advantageous increase, in particular even double.
  • the arrangement of contact paths on the outside of a plug-in body has the advantage that the interior of the plug-in body can be used for other functions. can be used.
  • the plug-in body of the charging plug can, for example, have a cavity extending axially through the plug-in body, which cavity can be used to accommodate further radio-component components.
  • This cooling device may also include one or more valves in addition to flow and return ports for the cooling medium. For example, can be used for the flow control of the cooling medium Doppelkugeiventll.
  • valve means in the charging plug only serve to return the cooling medium from an inlet hose back into the charging cable.
  • heating of the charging plug can be kept within prescribed limits even during fast charging.
  • cooling medium can also be provided to the electric vehicle if necessary in order to cool lines and in particular an energy store within the vehicle.
  • the valve means in the charging connector are then designed so that they can lead a cooling medium either back into the charging cable or to a vehicle.
  • the coolant is then passed through the charging plug and the charging socket of a vehicle. After passing through the corresponding components of the vehicle, the heated cooling medium is led back through the charging socket of the vehicle into the charging plug and the charging cable.
  • connection of the cooling circuit of the charging cable to a vehicle is especially important for fast charging. But even if vehicles are in the sun or in an underground car park, the use of vehicle cooling can be advantageous because the vehicles in these situations can not release additional heat of cargo to the outside. As an alternative to cooling the vehicle, however, the charging station could also reduce the charging power.
  • the valve means of the charging plug would control the cooling medium. By default, only pass through the charging plug and back through the charging cable. On the other hand, if a vehicle has the option of cooling, it can request it if necessary. This is done via a control unit of the vehicle.
  • the valve means of the charging plug can, for example, be actuated by a control unit of the vehicle via a commutation connection. In particular, the valve means of the charging plug are actuated via a push rod.
  • the arrangement of contact paths on the outside of the plug body of a charging connector thus has various advantages.
  • the invention also allows the advantageous placement of components of a cooling system within the charging connector.
  • the front side of the charging plug can be used completely for the function of the cooling system.
  • individual contacts for control lines can be provided with low voltage, since they do not require enlarged contact surfaces.
  • On the outside of the plug body are then only the power contacts for the charge.
  • a protective device is preferably provided.
  • the charging plug has a cover which covers the contact paths from the outside, wherein the cover is designed to be movable relative to the plug body.
  • the cover may thus occupy a position "open” in which the contact tracks are exposed and a position "closed” in which the contact tracks are protectively covered
  • the cover may be removed before plugging the charging plug into a charging socket After re-charging, they are re-attached to the charging plug, which makes it a kind of cover or protective sleeve, but this involves a considerable amount of manual effort and the risk of loss of coverage.
  • a cover is displaceably attached to the charging plug, so that the cover can be pushed out of the region of the contact tracks for charging. After loading, the cover is pushed back into its protective position.
  • a cover can be formed by a hollow-cylindrical protective tube, which is mounted coaxially movably on the plug-in body in the region of the contact tracks.
  • such a protective tube has on its inside an internal thread, which is in engagement with an external thread on the plug body.
  • the protective tube can be driven manually or driven by a motor on the external thread of the plug body and thus moved axially.
  • a motorized drive Is provided on the charging plug itself or on an associated charging socket.
  • a charging plug charging socket system comprising a charging plug according to an embodiment of the invention and a charging socket into which the charging plug can be positively inserted in order to produce an electrical contact between contact elements of the charging plug and contact elements of the charging socket.
  • the charging socket on a hollow socket body, in which the plug body of the charging plug can be introduced, wherein on the inside of the socket body concentric in the socket body extending contact surfaces are formed. These contact surfaces may also be annular contact paths.
  • clamping contacts are used, which bring via a servomotor contact surfaces after the Knlehebelprlnzlp in contact with the outer contact paths of the charging plug.
  • the contact paths of the charging plug are then spanned by the contact tracks of the charging socket, wherein each contact path of the charging socket spans a contact path of the charging plug.
  • the charging plug includes Charging socket system
  • drive means for moving this cover For example, the charging socket has a servomotor for moving a cover of the charging plug.
  • the steep motor drives a gripper with which the cover is gripped and moved.
  • such a servomotor is not only used to move the cover but also to pull the charging plug into the charging socket.
  • the drive means then engage the cover so that they pull the charger plug in the charging socket on a movement of the cover away from the charging socket. In this movement of the cover, not only the contact paths of the plug body are released, but also like the charging plug pulled into the charging socket. This has the advantage that charging plug and charging socket are securely connected together.
  • Flg. 1 is a schematic front view of the terminal sockets of a prior art charging plug
  • Fig. 2 is a schematic longitudinal section through a charging plug according to
  • Fig. 3 is a schematic front view of an embodiment of inventions to the invention charging plug
  • Fig. 4 is a schematic Rare view of a charging plug according to Flg. 3 with closed cover;
  • FIG. 5 is a schematic rare view of a charging socket; Flg.
  • FIG. 6 shows a schematic side view of a charging plug according to FIG. 3 with open cover; FIG. and
  • the charging plug according to the invention is preferably part of a charging cable, which is attached to a charging station for electrically operable vehicles.
  • the charging station is in communication with an energy source from which power can be transmitted to a vehicle via the charging cable.
  • the charging cable is temporarily connected to the vehicle, which takes place via a corresponding male-female connection.
  • Mier usually male-female connections are used, as shown by way of example in Figures 1 and 2.
  • FIG. 1 shows a front view charging plug 60, on the connection side of which contacts for different individual lines are formed.
  • the connecting body of the vehicle to be connected has corresponding contacts, which are brought into electrical contact upon connection of the two components.
  • Leltung (PP) be present, with the help of an electric vehicle can indicate a charging station, whether a charging cable is plugged with a plug Is or not.
  • a plurality of contact pins 71, 72, 73 are provided on an associated charging socket 70 (FIG. 2).
  • Contact pins 71 for the control units CP and PP have a smaller diameter than pins 72, 73 for the other lines LI, L2, L3, N and PE.
  • These contact pins 71, 72, 73 of the charging plug 70 are pushed into corresponding openings in the charging socket 60 in order to establish an electrical contact there.
  • FIG. 3 shows a top view of the charging plug 10 of the Flg. 4.
  • the charging connector 10 has a cylinder-shaped plug-in body 11, which is preferably formed as a hollow cylinder and thus has a cavity 14. In this cavity 14 components of a cooling system can be accommodated (not shown).
  • a plurality of concentric contact tracks 30, 31, 32, 33 and 34 are provided, which are arranged in the axial direction next to each other. These contact tracks are in the Flg. 4 only shown schematically and isolated from each other.
  • the contact tracks are also connected to lines of a charging cable, which may be lines LI, L2, L3, N, PE, CP and PP as in known charging plugs.
  • lines LI, L2, L3, N, PE, CP and PP as in known charging plugs.
  • Circular contact paths for the control lines CP and PP are formed on the front sill of the plug body 11. These are shown in Fig. 3 by concentric black circles of greater thickness.
  • an external thread 41 is further formed.
  • a protective tube 12 is screwed with a corresponding internal thread 40.
  • Flg. 4 shows the protective tube 12 in the closed position, in which it covers the contact tracks 30, 31, 32, 33 and 34 and thus shields them from external contact.
  • Thread 41 and the plug body 11 are partially housed in a housing 13, from which the plug body 11 protrudes with the contact tracks 30, 31, 32, 33 and 34.
  • the protective tube 12 can be rotated or pushed by an unillustrated actuator into an open position.
  • Fig. 6 shows this process by two arrows in the direction of the housing 13 again.
  • the servomotor rotates the support raw r 12 on the external thread 41, so that it is displaced in the direction of the housing 13 and so the contact paths 30, 31, 32, 33 and 34 releases.
  • a charging socket 20, as shown in the schematic representation of the Flg. 5 can now be found on the Plug body 11 of the charging plug 10 are pushed.
  • the charging socket 20 essentially has a hollow-cylindrical socket body 21, on the inside of which a plurality of contacts are arranged. These contacts are shown in simplified form in FIG. 5 as annular contact paths 50, 51, 52, 53.
  • the contact surfaces can bring about a servomotor according to the toggle lever principle in contact with the outer contact paths of the charging connector 10.
  • the contact tracks 30, 31, 32, 33 of the charging plug 10 are then spanned by the contact tracks 50, 51, 52, 53 of the charging socket 20, wherein each contact track of the charging socket spans a contact track of the charging plug.
  • FIG. 7 shows a charging socket 20 after sliding onto the charging plug 10.

Landscapes

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

Abstract

L'invention concerne un chargeur (10) pour transmettre un courant de charge à un véhicule à commande électrique, comportant plusieurs éléments de contact pour établir le contact électrique du chargeur (10) avec des éléments de contact d'un boîtier de charge (20). Selon l'invention, le chargeur (10) comporte un corps de fiche (11) de forme conique ou cylindrique, sur la face extérieure duquel plusieurs voies de contact (30; 31; 32; 33; 34) s'étendant concentriquement autour du corps de fiche (11) dans la direction axiale, sont formées. En outre, l'invention concerne un système de boîtier de charge doté d'un tel chargeur (10), d'un boîtier de charge (20) comprenant un corps de douille (21) creux, dans lequel le corps de fiche (11) du chargeur (10) peut être introduit, et sur l'intérieur du corps de douille (21), des surfaces de contact (50; 51; 52; 53; 54) s'étendant concentriquement dans le corps de douille (21) sont formées.
EP18738279.1A 2017-07-07 2018-07-04 Chargeur et système de boîtier de charge pour charger un véhicule électrique Pending EP3662540A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017115224.5A DE102017115224A1 (de) 2017-07-07 2017-07-07 Ladestecker und Ladestecker-Ladebuchsen-System zum Laden eines Elektrofahrzeugs
PCT/EP2018/068116 WO2019008051A1 (fr) 2017-07-07 2018-07-04 Chargeur et système de boîtier de charge pour charger un véhicule électrique

Publications (1)

Publication Number Publication Date
EP3662540A1 true EP3662540A1 (fr) 2020-06-10

Family

ID=62846190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18738279.1A Pending EP3662540A1 (fr) 2017-07-07 2018-07-04 Chargeur et système de boîtier de charge pour charger un véhicule électrique

Country Status (4)

Country Link
US (2) US11285828B2 (fr)
EP (1) EP3662540A1 (fr)
DE (1) DE102017115224A1 (fr)
WO (1) WO2019008051A1 (fr)

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Also Published As

Publication number Publication date
WO2019008051A1 (fr) 2019-01-10
US20200269713A1 (en) 2020-08-27
US20220176837A1 (en) 2022-06-09
DE102017115224A1 (de) 2019-01-10
US11285828B2 (en) 2022-03-29
US11724608B2 (en) 2023-08-15

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