WO2023085950A1 - Ensemble électrique pour prise électrique pour une douille électrique d'un câble de charge, prise électrique comprenant un tel ensemble électrique, station de charge comprenant une telle prise électrique et procédé de connexion d'un connecteur électrique - Google Patents

Ensemble électrique pour prise électrique pour une douille électrique d'un câble de charge, prise électrique comprenant un tel ensemble électrique, station de charge comprenant une telle prise électrique et procédé de connexion d'un connecteur électrique Download PDF

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Publication number
WO2023085950A1
WO2023085950A1 PCT/NO2022/050257 NO2022050257W WO2023085950A1 WO 2023085950 A1 WO2023085950 A1 WO 2023085950A1 NO 2022050257 W NO2022050257 W NO 2022050257W WO 2023085950 A1 WO2023085950 A1 WO 2023085950A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical
conductor wire
electrical conductor
receiving space
connector
Prior art date
Application number
PCT/NO2022/050257
Other languages
English (en)
Inventor
Kjetil Naesje
Jonas NÆSJE
Original Assignee
Easee As
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 Easee As filed Critical Easee As
Publication of WO2023085950A1 publication Critical patent/WO2023085950A1/fr

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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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • 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 an electrical assembly comprising an electrical connector for an electric socket for an electric plug of a charging cable for connecting an electric vehicle to a charging station, and an electrical conductor wire being directly coupled with the electrical connector.
  • the invention further relates to an electric socket comprising a plurality of such electrical connectors.
  • the invention also relates to a charging station comprising such electric socket.
  • the invention further relates to method of connecting an electrical connector.
  • a charging station is typically connected to the fuse box of a house or other type of residence. This connection is typically hardwired and carried out by an electrician in order to comply with the safety standards.
  • the charging station itself is typically provided with an electric socket (in Europe often a type-2 socket) into which a charging cable is to be plugged for connecting the electric car with the charging station.
  • Electric sockets typically comprise a plurality of electrical connectors that are spaced apart in accordance with the standard of the plug to be connected, i.e., a type-2 electric plug.
  • a type-2 electric socket there are 5 larger connector pins, each for receiving a phase (L1 , L2, N3, N) or ground (PE), and two smaller connector pins (PP, CP), i.e., the signal pins, which serve for safety purposes.
  • L1 , L2, N3, N phase
  • PE ground
  • PP, CP connector pins
  • the inventors identified a clear need for further reducing the costs of the charging stations while ensuring at least the same level of electric performance and safety or even to achieve a better electric performance. It is impossible to achieve too much safety in this kind of products.
  • the invention has for its object to remedy or to reduce at least one of the drawbacks of the prior art, or at least provide a useful alternative to prior art.
  • the invention in a first aspect, relates to an electrical assembly comprising an electrical connector for an electric socket for an electric plug of a charging cable for connecting an electric vehicle with a charging station, and an electrical conductor wire being directly coupled with the electrical connector.
  • the electrical connector has a first end and a second end and is configured for allowing electric current to flow from the first end to the second end.
  • the electrical connector comprises a first terminal at the first end, wherein the first terminal is configured for directly receiving an end of the electrical conductor wire.
  • the electrical connector also comprises a second terminal at the second end, wherein the second terminal is configured for receiving a connector pin of the electric plug of the charging cable.
  • the first terminal of the electrical connector comprises at least two axially extending members spaced apart and defining a receiving space in between them for receiving an end portion of the electrical conductor wire, wherein at least one of the at least two axially extending members is a flexible member, wherein the first terminal is configured for the at least one flexible member to be pre-tensioned by bending outwardly upon insertion of the end portion of the electrical conductor wire into the receiving space and to clamp the end portion of the electrical conductor wire between the at least two axially extending members for creating and maintaining a good electrical contact between the electrical conductor wire and the electrical connector.
  • An end of the electrical conductor wire is placed inside the receiving space of the electrical connector and clamped by the at least one flexible member, thereby connecting the electrical conductor wire to the electrical connector.
  • a feature of the electrical connector is that it uses one or more flexible members to define the receiving space.
  • a minimum dimension of the receiving space may be chosen to correspond with a size of the electrical conductor wire end of the electrical conductor wire, such as for the at least one flexible member to be caused to be pre-tensioned by bending outwardly when the end of the electrical conductor wire is sufficiently inserted into the receiving space, which allows the electrical conductor wire to be clamped in the receiving space while maintaining a good electrical contact between the electrical connector and the electrical conductor wire.
  • the inventor managed to design the electrical connector such that it may form the electrical contact that remains good over time with a fitting electrical conductor wire without requiring any soldering, welding, crimping, or screwing. The only handling required is to press the electrical conductor wire into the receiving space of the first terminal.
  • the electrical conductor wire end is made relatively stiff, for instance using a single-strain copper electrical conductor wire.
  • Multi-strain copper electrical conductor wires may be too elastic, which may render pre-tensioning very difficult. That being said, embodiments of the connector may work as described for connection with a multi-strain electrical conductor wire.
  • the stiffness of the electrical conductor wire may preferably be at least such that the electrical conductor wire substantially resists bending upon withstanding a force required to push the electrical conductor wire end into the first terminal of the connector.
  • the electrical conductor wire may typically have first end and a second end.
  • the first end of the electrical conductor wire may be the end connected to the electrical connector. Any reference to “the electrical conductor wire end” herein is a reference to the first end of the electrical conductor wire.
  • the second end of the electrical conductor wire may be connected e.g. with circuitry on a printed circuit board, to a relay in the charging station, to a power rail in the charging station, or to another part of a circuitry in the charging station.
  • the electrical conductor wire may in some embodiments of the invention be a part of a printed circuit board.
  • the connection of the electrical conductor wire to e.g. a relay, a power rail or another part of e.g. a charger for an electrical vehicle may be a direct connection.
  • Electrode wire is to be interpreted as an elongated piece of metal that is supposed to electrically connect at least two electric components and allow conducting of an electric current between said components.
  • the term “electrical electrical conductor wire” does not include what a skilled person would refer to as “a connector”, nor one or more parts of such “connectors”, of any shape.
  • An end portion of the electrical conductor wire may typically be uniform in thickness and shape, and may have a cross section that is rectangular or circular.
  • Soldering even though quite often used, has several disadvantages as mentioned below: A lot of manual work and expertise is required to ensure the soldering quality that is required by the application.
  • the heating of the materials requires a high amount of energy, i.e., it is not a “green” solution.
  • Soldering tin is very expensive and must be carefully added during heating (time consuming process).
  • Soldering flux (chemicals) must be added to facilitate the soldering process, which may induce galvanic corrosion and/or increased surface conductivity in the supporting insulators, which may cause catastrophic failure.
  • the electrical conductivity of tin is much lower than for copper, which may result in higher losses in a soldered connection than for a copper-copper direct connection.
  • Soldering has a significant negative environmental footprint.
  • Crimping has, apart from requiring manual handling, also significant disadvantages as mentioned below:
  • the welding spots will also be subject to excessive stress from movements in the plug assembly.
  • the connection may need to be able to withstand at least 10000 plug-unplug cycles. This will be hard to achieve if stress is concentrated on the already weakened materials in the welding points.
  • the invention overcomes many of these disadvantages in that it provides for a reliable and durable electrical contact without the need for tooling, soldering, chemicals, or additional parts, such as a bolt, nail, spring, screw, terminal, or something similar.
  • the invention provides special features that make the electrical connection easy to manufacture, highly durable and highly electrically conductive using low-cost and non-toxic materials and using standard and widely available machining tools.
  • the electrical connector may comprise a plurality of flexible members.
  • the first terminal may comprise, e.g., two, three, more than three, four, five, six, eight or more than eight flexible members.
  • all of a plurality of axially extending members may be flexible.
  • the first terminal may comprise a plurality of axially extending members which are arranged symmetrically, forming between them the receiving space.
  • all of the symmetrically arranged axially extending members may be flexible members.
  • a symmetrical arrangement with a plurality of flexible members may be advantageous as it may provide an improved connection between the electrical conductor wire and the electrical connector for several reasons.
  • the grip may be improved by having a higher number of gripping points, a load may be better and more evenly distributed and a higher number of contact points may improve conductivity between the connector and the electrical conductor wire. Furthermore, it may be easier to machine the connector if a number of all flexible axially extending members are symmetrically arranged around a center area.
  • the size, particularly the diameter, of the receiving space fits with the size, particularly the diameter, of the electrical conductor wire.
  • the receiving space should have a slightly smaller diameter, in at least one part of the receiving space, than the electrical conductor wire.
  • the at least one part of the receiving space may be referred to as a “clamping area”.
  • the clamping area should have a diameter large enough for allowing insertion of the electrical conductor wire into the receiving space but simultaneously small enough that insertion of the electrical conductor wire into the receiving space causes at least one of the at least one flexible members to become pre-ten- sioned by bending outwardly.
  • a distance between two or more axially extending members, at least one of which being a flexible member, in the clamping area might be of more importance than the area of the clamping area.
  • the electrical connector may be configured to fit a given size of electrical conductor wire.
  • the diameter of the clamping area, or the distance between two or more of the axially extending members, at least one of which being a flexible member may, be, e.g., 2 millimeter, 3 millimeter, 4 millimeter, less than 2 millimeter or more than 4 millimeter.
  • One or more of the at least two axially extending members may comprise a protruding part, wherein the protruding part protrudes inwards to narrow the distance between two or more axially extending members, at least one of which being a flexible member, in a clamping area, the clamping area being a narrowest part of the receiving space in which the electrical conductor wire end of the electrical conductor wire is to be clamped by the at least one flexible member upon insertion of the electrical conductor wire end into the receiving space.
  • the protruding part may typically be at or near a distal end of the axially extending member or members, or, in some embodiments, be, e.g., in a middle portion of the axially extending member.
  • each one of a plurality of axially extending members may comprise a protruding part protruding inwards, wherein the protruding parts defines the distance.
  • Some embodiments of the electrical connector may comprise a plurality of protruding parts on one or more or each of the axially extending members.
  • the protruding part or parts may have a, e.g., a blunt edge or a sharp edge, wherein a sharp edge may be particularly advantageous as it may be configured to make an indentation or notch in the electrical conductor wire which may improve the electrical connection between the electrical connector and the electrical conductor wire.
  • the indentation or notch may improve the grip by the electrical connector on the electrical conductor wire and/or the conductivity between the electrical conductor wire and the electrical connector, relative to the grip and/or conductivity it would have without such a protruding part. It may be of importance to ensure that the indentation or notch is limited, that it does not run to deep into the electrical conductor wire. If the electrical connector cuts too deep into the electrical conductor wire, the electrical conductor wire may become damaged.
  • the level of the indentation or notch may be obtained e.g. by choosing a configuration of the one or more flexible members, by the stiffness or hardness of the material of the electrical con- nector/the flexible member or members or by the hardness of the material of the electrical conductor wire.
  • each of the protruding part or parts is shaped to define a contact surface with the electrical conductor wire when the electrical conductor wire end of the electrical conductor wire is inserted into the receiving space in operational use and is clamped between the axially extending members in the clamping area.
  • the protruding parts are pressed against the electrical conductor wire by the resilient force(s) of the flexible member(s) and establish a good electrical contact between the electrical connector and the electrical conductor wire.
  • the protruding part or parts are shaped with a tilted surface facing the receiving space such that outward bending of the flexible members is compensated for and a size of the contact surface with the electrical conductor wire is increased when the electrical conductor wire end of the electrical conductor wire is inserted into the receiving space.
  • the narrowing of the receiving space in the clamping area is obtained by the axially extending members being bent towards each other when no electrical conductor wire is provided between the axially extending members.
  • the one or more of the axially extending members and/or the at least one flexible member may be bent inwards towards the centre of the receiving space prior to insertion of an electrical conductor wire in the receiving space.
  • the bend may e.g. be a slight bend with an angle of less than 5 degrees or less than 10 degrees, or a greater bend with an angle of more than 10 degrees.
  • the bend may be a bend of a part of the one or more axially extending members and/or the at least one flexible member, such as a distal part.
  • the one or more of the axially extending members and/or the at least one flexible member may be thicker at the distal end than at a base of the members, such that the receiving space is narrower at a distal end of the receiving space than at a base end of the receiving space, thereby defining the clamping area.
  • one or more embodiments of the electrical connector wherein the axially extending members are either bent inwards, or have gradually increasing thickness towards the distal end of the axially extending, in a way that narrows the diameter of the receiving space at the distal end may be advantageous as it may facilitate an improved connection between the electrical conductor wire and the electrical connector relative to embodiments of the electrical connector where the axially extending members do not have such a bend or gradually increasing thickness.
  • the at least one flexible member comprises at least two flexible members spaced apart and provided around the receiving space, and preferably at least three flexible members spaced apart and provided around the receiving space, and even more preferably, at least four flexible members spaced apart and provided around the receiving space, and even more preferably, at least six flexible members spaced apart and provided around the receiving space.
  • All of or some of the axially extending members may be flexible members. For some uses, it may be beneficial with a small number of axially extending members, such as two axially extending members, wherein for other uses it may be beneficial with a larger number of axially extending members.
  • the electrical conductor wire that the electrical connector is to receive in the receiving space is an electrical conductor wire with a relatively broad, rectangular cross-section
  • the electrical conductor wire has a round form (a circular cross-section)
  • a plurality of axially extending members may provide several advantages, e.g., a more even grip on the electrical conductor wire, distribute a load more evenly, provide more gripping points, more contact points through which to transfer electricity which may increase the conductivity, and it may be make machining of the electrical connector less complicated. It may be advantageous to have a plurality of flexible members, as that may, e.g., require less movement from each of the flexible members to provide the necessary grip on the electrical conductor wire.
  • a receiving space having a pre-tension functionality as in the current invention can be formed with any number of flexible members, i.e., at least one flexible member that can bend outwardly.
  • any number of flexible members i.e., at least one flexible member that can bend outwardly.
  • the plurality of axially extending members define a round receiving space for receiving a round electrical conductor wire end of the electrical conductor wire.
  • the plurality of axially extending members define a rectangular receiving space for receiving a rectangular electrical conductor wire end of the electrical conductor wire.
  • An embodiment with a rectangular receiving space is further discussed in the detailed description of the figures.
  • the electrical connector may comprise or be made of a material having advantageous properties for its use.
  • the properties may include one or more of conductivity, stiffness, hardness, bending strength and other material properties.
  • the material may advantageously be a material comprising copper, like, e.g., copper, tinned copper, or a copper alloy material comprising at least 50% copper, but other materials having suitable properties may be used. It may be of importance that the material has properties that allows for the one or more flexible members to be flexible yet strong and/or stiff enough to provide a good, electric contact between the electrical conductor wire and the electrical connector.
  • a good electric contact may be one that ensures good conductivity between the electrical conductor wire and the electrical connector and/or a connection that holds the electrical conductor wire end in place in the receiving space of the electrical connector.
  • connection may preferably be one that holds the electrical conductor wire end in place in the receiving space even in events of forces up to a certain level that would cause movement of the electrical conductor wire if not for the grip on the electrical conductor wire end by the axially extending members.
  • connection may preferably be a gas- free connection, meaning a connection where current can flow directly from metal to metal, from the electrical conductor wire to the electrical connector, without traveling through a gas in between the two.
  • the material has properties that keeps the material of the electrical connector and/or the electrical conductor wire from flowing, getting permanently deformed and/or becoming fatigued, even after forces being applied to the electrical connector during connection and/or disconnection.
  • the second terminal of the connector may be a male connector terminal, or the second terminal may be a female connector terminal.
  • the second terminal may comprise any one or more of the features mentioned herein as features of the first terminal.
  • the electrical connector may be made from one piece of metal.
  • the electrical connector may be machined, rolled or in other ways formed from one piece of metal or stamped sheet metal.
  • the electrical connector may be one piece of, e.g., machined metal.
  • Having the electrical connector made from a single piece of metal has several advantages: It is advantageous in production, as a connector may be made simply through, e.g., machining by a single machine. There is no or little need for assembly after making the connector (although subsequent coating may be advantageous, as may other minor operations). With only one part, there is no need for assembly, no need for making small parts fit together with pristine accuracy of dimensions and tolerances. A single-piece connector may also be less spacious. Furthermore, an electrical connector made from a single piece of metal has fewer parts that can fail, which is a big advantage. The biggest weakness of electrical devices having many parts are often the connection between the parts. Connections may be vulnerable to damage and may cause a loss of energy and heating particularly if they become damaged when high currents are transferred through said connections. The heating may be damaging to material and hazardous to people.
  • the electrical connector may comprise a one-piece base unit that is machined from one piece of metal, wherein said base unit comprises the first end including the first terminal and the second end including the second terminal and a middle portion of the piece of metal connecting the two ends for transferring current between the two ends.
  • the axially extending members may be coated with a coating. The coating may be advantageous to improve one or more properties of the electrical connector. Coating of the axially extending members may improve one or more of, e.g., the hardness, the resilience, the electrical conductivity, and the ability to self-repair of the axially extending members.
  • Silver may be used for coating and may be particularly advantageous for its ability to repair minor tears or scratches in the form of a coated axially extending member or similar by flowing back to or towards its original form.
  • Other coating materials are possible, including, but not exclusively, any one of nickel, gold plating, zinc and copper.
  • an end of the electrical conductor wire is placed inside the receiving space of the electrical connector and clamped by the at least one flexible member and wherein the electrical conductor wire thereby is connected to the electrical connector.
  • the electrical conductor wire of the assembly may be connected, e.g., to a printed circuit board, to a relay, to a power rail, or to another part of an electrical circuitry.
  • the printed circuit board, the relay, the power rail, or the other part of an electrical circuitry may be a part of a charging station, for example, or to another electrical apparatus. It should be noted, however, that a skilled person may understand that other uses are possible. It may be said that the electrical assembly is mounted on the printed circuit board. A plurality of such electrical assemblies may be mounted on the printed circuit board.
  • a plurality of such electrical assemblies may be parts of a charging station, for example, or another electrical apparatus.
  • these may be placed in a support unit first, before the whole unit is mounted on the printed circuit board.
  • parts of an electrical apparatus they may also be placed in a support unit.
  • the electrical conductor wire may comprise or be made of a material suitable for an electrical conductor wire.
  • the material of the electrical conductor wire may preferably be a material having one or more of the following properties: sufficient conductivity for conducting electricity efficiently, sufficient stiffness for enabling insertion a part of the electrical conductor wire into the receiving space without damaging the electrical conductor wire, and sufficient hardness for avoiding that the axially extending members damages the electrical conductor wire by scratching, scraping or digging to far into the electrical conductor wire at a point or points of connection between the electrical connector and the electrical conductor wire.
  • the material may be e.g. a copper material, like copper, tinned copper, or a copper alloy material. Alternatively, the material may be aluminium. Other materials having suitable properties may also be useable.
  • the electrical conductor wire may be a single-strain electrical conductor wire.
  • a singlestrain electrical conductor wire may be preferable over a multi-strain electrical conductor wire, as a solid multi-strain electrical conductor wire may typically be more resilient than a multi-strain electrical conductor wire.
  • the end portion of the electrical conductor wire may be pre-shaped to match a shape of the receiving space of the electrical connector.
  • the shape is chosen such that the electrical conductor wire is neatly held within the electrical connector.
  • a shape pre-shaped to fit to the receiving space may be advantageous to improve a connection between the electrical connector and the electrical conductor wire.
  • the invention in a second aspect, relates to an electric socket comprising the electrical assembly according to the first aspect of the invention.
  • the electric socket may comprise a plurality of the electrical assemblies according to the first aspect of the invention.
  • the plurality of electrical assemblies may be spaced apart, e.g., spaced apart in accordance with a predefined standard socket, such as a type-2 electric socket.
  • the invention may be commercialized in pre-fabricated electric sockets as well. Hence the applicant is entitled to such claim. Also, the price of such electric sockets is strongly reduced because of the reduced required labour during the solderless provision of the electrical conductor wire in the electrical connector.
  • the invention in a third aspect, relates to a charging station for charging an electric vehicle, the charging station comprising the electric socket according to the third aspect of the invention comprising a plurality of electrical connectors spaced apart in accordance with a predefined standard socket such as a type-2 electric socket, wherein the plurality of electrical connectors is connected to electrical conductor wires in the charging station.
  • the electrical conductor wires in the charging station may each be connected to a connector in the electric socket in a first end of the electrical conductor wire and to, e.g., a relay, to a printed circuit board, to a power rail, or to another part of a circuitry in the charging station in a second end of the electrical conductor wire.
  • the invention may also be commercialized in a complete charging station comprising the pre-fabricated electric sockets. Hence the applicant is entitled to such claim. Also, the price of such electric sockets is strongly reduced because of the reduced required labour during the solderless provision of the electrical conductor wire in the electrical connector.
  • the electrical assembly is connected to a printed circuit board, a relay, a power rail or another part of a circuitry of the charging station.
  • the invention in a fourth aspect, relates to a method of connecting a terminal end of an electrical connector to a first electrical conductor wire end of an electrical conductor wire for a charging station for charging an electrical vehicle, the method comprising steps of: providing the electrical conductor wire; providing the electrical connector in accordance with the first aspect of the invention, wherein the first terminal of the electrical connector is configured for receiving the first electrical conductor wire end in the receiving space and for the at least one flexible member to become pre-tensioned upon receiving the first electrical conductor wire end in the receiving space, and pushing the first terminal of the electrical connector against the first electrical conductor wire end to push the first electrical conductor wire end into the receiving space of the electrical connector, to thereby pre-tension the at least one flexible member, to provide a clamping grip and to establish a good electric contact between the electrical conductor wire and the electrical connector.
  • the method according to the fifth aspect of the invention may be sufficient to provide a proper electrical connection between the electrical connector and the electrical conductor wire and eliminate the need for other methods involving, e.g., soldering, crimping or screw terminals.
  • the first terminal of the electrical connector may have a plurality of flexible members. More than one of the plurality of flexible members may be pre-tensioned upon insertion of the electrical conductor wire into the first terminal. Having a plurality of flexible members, and/or having a plurality of flexible members be pre-tensioned upon insertion of the electrical conductor wire into the first terminal of the electrical connector may further improve the electrical connection between the electrical conductor wire and the electrical connector, and may as such be advantageous.
  • the electrical conductor wire may be part of the charging station.
  • the electrical conductor wire may have a second electrical conductor wire end that is connected to, e.g., a printed circuit board, a relay, a power rail, or another part of a circuitry of the charging station.
  • the method may be repeated for a plurality of electrical connectors, each being connected to one of a plurality of electrical conductor wires.
  • Each of the electrical connectors may be connected to one of the plurality of electrical conductor wires in by pushing the first terminal of the electrical connector against the first electrical conductor wire end to push the first electrical conductor wire end into the receiving space of the electrical connector, to thereby pre-tension the at least one flexible member, to provide a clamping grip and to establish a good electric contact between the electrical conductor wire and the electrical connector.
  • the plurality of electrical connectors may be spaced apart in accordance with a predefined standard socket, such as, e.g., a type-2 electric socket, charging station
  • the invention in a fifth aspect, relates to a method of connecting a type-2 electric socket to a circuitry for a charging station for an electric vehicle, the type-2 electric socket comprising a plurality of electrical connectors in accordance with the first aspect of the invention, wherein the circuitry comprises a plurality of electrical conductor wires, each for connecting to one of the electrical connectors and each electrical conductor wire having a first electrical conductor wire end for connecting to an electrical connector and a second electrical conductor wire end connected to the circuitry.
  • the method comprises a step of: connecting the plurality of electrical connectors to the circuitry by pushing the first terminal of each of the plurality of connectors against the first electrical conductor wire end of one of the plurality of electrical conductor wires until the first electrical conductor wire end of each of the electrical conductor wires has been pushed far enough into the receiving space of the electrical connector to which the electrical conductor wire is to connect for the at least one flexible member of the electrical connector to become pre-tensioned and to provide a clamping grip on the electrical conductor wire.
  • the process of pushing the first electrical conductor wire ends into the receiving space of the electrical connectors may be done for one connector at a time, or for a plurality of electrical connectors simultaneously.
  • the circuitry may be a circuitry for passing electricity through the charging station from a power source to an electric vehicle.
  • the electrical conductor wire may be connected, e.g., to a printed circuit board, to a relay, or to another part of the circuitry of the charging station.
  • an electrical device having an end portion with a terminal for connecting to a electrical conductor wire, wherein the terminal comprises at least two axially extending members defining between them a receiving space, wherein at least one of the at least two axially extending members is a flexible member which is configured to be pre-tensioned by bending outwardly upon insertion of an end portion of the electrical conductor wire into the receiving space, wherein the device is machined from a single piece of metal.
  • the electrical device may comprise any one or more of the features of the electrical connector.
  • the electrical device may, e.g., be a device for receiving and using electricity through the terminal for the use of the device.
  • the electrical device may be a form of a heater.
  • the electrical device may, e.g., be a part of an electrical apparatus, wherein the electrical device is a type of connector for connecting the electrical apparatus to a power source for receiving electricity from the power source, wherein the electrical conductor wire is for connecting the electrical device to the power source.
  • the electrical device may comprise, in addition to the end portion with the terminal, a middle section for leading currency to, e.g., a heating element or to, e.g., a second terminal for connecting to another part of the electrical apparatus.
  • the electrical device may be particularly advantageous as it offers a terminal for establishing a good electrical connection to a electrical conductor wire without a need for soldering, cramping or welding, and where the connection between the electrical conductor wire and the electrical device is simply a two-part connection.
  • the device does not comprise a plurality of parts in its terminal, which reduces the number of connected parts which again reduces a risk of a faulty connection and potentially reduces a loss of energy through the transferring of currency through connections.
  • a further electrical assembly comprising an electrical connector and a electrical conductor wire, wherein the electrical conductor wire is part of a circuitry of an electrical apparatus, wherein the electrical connector and the electrical conductor wire are connected together, wherein one of the electrical connector and the electrical conductor wire has a female terminal end and the other has a male terminal end, wherein the female terminal end has at least two axially extending members defining between them a receiving space for receiving the male terminal end, and wherein at least one of the axially extending members is a flexible member arranged to be pre-tensioned upon insertion of the male terminal end into the receiving space of the female terminal end.
  • the flexible member may be configured for providing a clamping grip on the male terminal end to secure a good electrical connection between the connector and the electrical conductor wire upon insertion of the male terminal end into the female terminal end.
  • the female terminal end may comprise any one or more of the features of the first terminal in accordance with the first aspect of the invention.
  • the electrical apparatus may be, e.g., a charging station for an electrical vehicle.
  • the electrical conductor wire may be connected to a, e.g., printed circuit board, a relay, a power rail, or another part of the circuitry of the electrical apparatus.
  • the electrical assembly may be part of the charging station. But it may alternatively be part of any other electrical apparatus for which it may be advantageous.
  • the invention relates to the respective electrical connector in the electrical assembly of the invention, and to the respective electrical conductor wire in the electrical assembly of the invention. These parts may be commercialized individually and sold separately.
  • Fig. 1 shows a first embodiment of an electrical connector in accordance with the invention
  • Fig. 2 shows a perspective view of the electrical connector of Fig. 1 ;
  • Fig. 3 shows a different perspective view of the electrical connector of Fig. 1 ;
  • Fig. 4a shows a sideview of the electrical connector of Fig. 1 ;
  • Fig. 4b shows a cross-sectional view of the electrical connector of Fig. 4a
  • Fig. 5a shows part of the cross-sectional view of Fig. 4b
  • Fig. 5b shows an enlarged view of Fig. 5a
  • Fig. 6a shows a connector assembly of an electrical connector and an electrical conductor wire just before insertion
  • Fig. 6b shows the connector assembly of Fig. 6a just after insertion
  • Fig. 7 shows a sideview of the connector assembly of Fig. 6b
  • Fig. 8a shows a second embodiment of an electrical connector in accordance with the invention
  • Fig. 8b shows a cross-sectional view of the electrical connector of Fig. 8;
  • Fig. 9a shows a third embodiment of an electrical connector in accordance with the invention.
  • Fig. 9b shows a cross-sectional view of the electrical connector of Fig. 9a
  • Fig. 9c shows a perspective view of the electrical connector of Fig. 9a
  • Fig. 10a shows a perspective view of a connector assembly in accordance with the embodiment of the invention of Figs. 9a-9c;
  • Fig. 10b shows a sideview of the connector assembly of Fig. 10a
  • Fig. 10c shows a different perspective view of the connector assembly of Fig. 10a;
  • Fig. 11a shows a perspective view of a connector assembly in accordance with a fourth embodiment of the invention.
  • Fig. 11 b shows a perspective view of the electrical connector of the connector assembly of Fig. 11a;
  • Fig. 11c shows a sideview of the electrical connector of Fig. 11 b;
  • Fig. 12a shows a fifth embodiment of the electrical connector in accordance with the invention.
  • Fig. 12b shows an enlarged view of part of Fig. 12a
  • Fig. 12c shows the electrical connector of Fig. 12b after insertion of a connector pin
  • Fig. 13a shows a charging station without a housing
  • Fig. 13b shows both an electric plug of a charging cable as well as a charging station with a housing.
  • Fig. 1 shows a first embodiment of an electrical connector 10 in accordance with the invention.
  • the electrical connector 10 comprises a first terminal 10a at a first end 10e1 of the electrical connector 10, and a second terminal 10b at a second end 10e2, opposite to the first end 10e1 , as illustrated.
  • the electrical connector 10 further comprises an O-ring track 11 which serves to receive an O-ring (not shown).
  • This O-ring track 11 and the associated O-ring are fully optional and serve for mounting and holding the electrical connector 10, for instance when being provided in an electric socket as will be discussed with reference to other figures.
  • Fig. 2 shows a perspective view of the electrical connector 10 of Fig. 1. In this figure a receiving space S10a of the first terminal 10a is visible.
  • Six axially extending members 12a are arranged to define between them the receiving space S10a and a circular opening into the receiving space S10a.
  • the axially extending members 12a are spaced apart by slits which substantially extend along the length of each axially extending member 12a.
  • All six axially extending members 12a are flexible members 12a. The same holds true for all axially extending members 12a shown in all the figures in the set of figures. It is important to point out, therefore, that although the axially extending members 12a shown in the figures are flexible members 12a, it is possible to make functioning embodiments of the electrical connector 10 wherein only one axially extending member 12a is a flexible member 12a.
  • Fig. 3 shows a different perspective view of the electrical connector 10 of Fig. 1.
  • the electrical connector 10 is seen from an opposite angle such that a further receiving space S10b of the second terminal 10a is visible.
  • a further plurality of flexible members 12b is indicated, the further flexible members 12b being arranged akin to the flexible members 12a of the first terminal, defining between them a second receiving space S10b and a circular opening for the second receiving space S10b.
  • the further flexible members 12b are also spaced apart by longitudinal slits extending along the length of each of the further flexible members 12b.
  • the diameters of the terminals and the associated receiving spaces are different, that is the first terminal 10a is designed for connection with a (copper) electrical conductor wire (not shown in Fig. 3), while the second terminal 10b is designed for connection with a thicker connector pin (not shown) which dimensions are in accordance with a predefined standard, such as conductor pins for a type-2 electric plug in accordance with the standard I EC 62196.
  • each terminal 10a, 10b there are provided six flexible members 12a, 12b for each terminal 10a, 10b, each defining a round receiving space S10a, S10b.
  • any other number of axially extending members 12a, 12b above one may be chosen and any other shape of the receiving spaces S10a, S10b, and any number above zero of the axially extending members 12a, 12b may be flexible members 12a, 12b.
  • Fig. 4a shows a sideview of the electrical connector 10 of Fig. 1 .
  • Fig. 4b shows a cross- sectional view of the electrical connector 10 of Fig. 4a.
  • These figures serve to illustrate the design of the flexible members 12a, 12b and the slits more clearly. Also, the internal shape of the respective receiving spaces S10a, S10b are illustrated.
  • Fig. 5a shows part of the cross-sectional view of Fig. 4b.
  • Fig. 5b shows an enlarged view of Fig. 5a.
  • the first receiving space S10a is designed with a tapered entry 16a for facilitating insertion of an electrical conductor wire, which transitions towards a narrowed portion of the first receiving space S10a formed by respective parts 14a of the flexible members 12a that are each provided with a protruding part 15a as illustrated.
  • the flexible members 12a each extending in an axial direction A10a as illustrated and the respective protruding parts 15a extend towards each other thereby locally narrowing the first receiving space S10a to a predefined reduced distance.
  • the area with a narrowed first receiving space is an example of what has previously been referred to as the “clamping area”. It is in this area of the receiving space that the pre-tensioned flexible members will clamp on the electrical conductor wire 20 when the electrical conductor wire 20 is inserted into the receiving space.
  • the inner walls of the receiving space S10a are coated with a coating material 18a, such as silver, for lowering the contact resistance between the electrical connector 10 and the electrical conductor wire (not shown) to be inserted. It is this coating layer 18a, which may be prone to wear in particular when the electrical conductor wire would be inserted and pulled out repetitively, which may, in practise, be more of an issue at the side of the second terminal.
  • Fig. 6a shows a connector assembly 60 of an electrical connector 10 and an electrical conductor wire 20 just before insertion.
  • This figure illustrates what is meant with a “predefined reduced distance” D10a, which is the smallest dimension between the flexible member 12a as defined by the earlier-discussed protruding parts 15a.
  • This predefined reduced distance D10a is in the clamping area of the first terminal 10a, and is designed to be smaller than a minimum lateral dimension D20 of the electrical conductor wire 20.
  • the electrical conductor wire 20 to be inserted for this embodiment of the electrical connector 10 is a (round or circular) single-strain copper wire, for example, which is known to be a stiffer material in terms of flexibility.
  • the electrical conductor wire end 20e is to be inserted in the direction of the electrical conductor wire as indicated by the fat arrows. Because of the difference in radial dimension the flexible members 12a will be pressed outwardly by the electrical conductor wire 20 upon insertion of the electrical conductor wire 20 into the receiving space, as illustrated by the radial arrows.
  • Fig. 6b shows an embodiment of the electrical assembly (60) in accordance with the first aspect of the invention, just after insertion of the electrical conductor wire 20.
  • the figure shows that the flexible members 12a are slightly bent outwardly.
  • the contact surface SCa between the first terminal and the electrical conductor wire 20 is mainly defined by the protruding parts 15a. It is not clearly visible, but the protruding parts 15a may be provided with a slightly inwardly bent tilted surface TSa to compensate for the outward bending of the flexible members such that the effective contact surface SCa becomes larger after insertion of the electrical conductor wire 20.
  • Fig. 7 shows a sideview of the electrical assembly 60 of Fig.
  • the assembly comprises the combination of the electrical connector 10 and the electrical conductor wire 20 as illustrated.
  • the figure clearly illustrates how the flexible members 12a are bent outwardly for providing the earlier-discussed pre-tensioning of the flexible members 12a, and a clamping grip on the electrical conductor wire 20.
  • the electrical conductor wire 20 is simply pushed in the first terminal 10a of the electrical connector 10 in order to make a proper electrical connection between the two. No other action is required.
  • the flexible members 12a are non-permanently deformed and at least touch the electrical conductor wire 20 via the protruding parts 15a near an inner end of each flexible member 12a.
  • the force required for assembling the two parts is dependent on the material and the geometry of the flexible members 12a, and the angle of tapered entry 16a of the first terminal 10a. Even when the electrical conductor wire 20 is slightly off measurement or deformed, the flexing of the flexible members 12a can compensate for the deviations and ensure good conductivity. Wear and tear will also be compensated for in the same way as well as heat expansion differences between the materials.
  • Fig. 8a shows a second embodiment of an electrical connector 10-1 in accordance with the invention.
  • Fig. 8b shows a cross-sectional view of the electrical connector 10-1 of Fig. 8.
  • the predefined reduced distance between the flexible members is obtained in a different way.
  • both terminals are each provided with pre-bent flexible members 12a1 , 12b1.
  • only one of the two terminals could have pre-bent flexible members 12a1 , 12b1.
  • Fig. 8b shows how the predefined reduced distance D10b in the clamping area of the second terminal is obtained by the flexible members 12b 1 (originally extending in an axial direction A10b as illustrated) being bent inwardly. The same is done for the first terminal (right side).
  • Figs. 8a-8b With reference to Figs. 8a-8b the following is to be noted. No protrusions are formed on the flexible members 12a1 , 12b1. Instead, the material has first been machined in a straight line (for example using a bore), then cut into segments (forming the flexible members 12a1 , 12b1) and finally deformed in a subsequent squeezing process by exerting sufficient force on parts of the segments. As mentioned, this may be done for both the first and the second terminal of the electrical connector 10 or for only one of them.
  • Fig. 9a shows a third embodiment of an electrical connector 10-2 in accordance with the invention.
  • Fig. 9b shows a cross-sectional view of the electrical connector 10-2 of Fig. 9a.
  • FIG. 9c shows a perspective view of the electrical connector 10-2 of Fig. 9a.
  • the second terminal 10b is the same as for the first embodiment.
  • the figure shows how also the second terminal 10b is designed with flexible members 12b having respective parts 14b that form a predefined reduced distance D10b between the flexible members 12b by the provision of respective protruding parts 15b facing each other similar to as discussed for the first terminal 10a of the electrical connector 10 in Fig. 1.
  • the geometry of the first terminal has been adapted for facilitating the use of cut copper plates or rails. Such cut copper plates or rails are very beneficial for automated assembly lines.
  • Figs. 9a-9c show that the first terminal is provided with only two flexible members 12a2, which are shaped to form a somewhat rectangular receiving space S10a2 as illustrated, yet it includes protruding members as illustrated.
  • Fig. 10a shows a perspective view of an electrical assembly 60-2 in accordance with the embodiment of the invention of Figs. 9a-9c.
  • Fig. 10b shows a sideview of the electrical assembly 60-2 of Fig. 10a.
  • Fig. 10c shows a different perspective view of the electrical assembly 60-2 of Fig. 10a.
  • the electrical assembly 60-2 comprises the electrical connector 10-2 of Figs. 9a-9c and a flat copper rail 20-2, which is inserted with its modified electrical conductor wire end 20-2 into the electrical connector 10-2.
  • Figs. 10a-10c The pre-tensioning of the flexible members is achieved in a similar way as for the other embodiments that have been discussed.
  • the pre-tension area of the electrical connector 10-2 is only segmented in two flat flexible members and not so much into fingers that form a round receiving space. This will lead to a more cost-efficient manufacturing process (less processing time required).
  • the electrical contact area will be less adaptive to possible deformations or deviations in the flat copper rail 20-2.
  • the next embodiment solves that problem in a very neat way.
  • Fig. 11a shows a perspective view of another embodiment of the electrical assembly 60- 3.
  • Fig. 11 b shows a perspective view of the electrical connector 10-3 of the electrical assembly 60-3 of Fig. 11a.
  • Fig. 11c shows a sideview of the electrical connector 10-3 of Fig. 11b.
  • the electrical assembly 60-3 comprises modified electrical connector 10-3 with a second terminal that is similar to that of Figs. 10a-10c.
  • the first terminal is adapted to have six flexible member 12a6 that now define the same rectangular receiving space S10a2.
  • the electrical conductor wire is the same flat copper rail 20-2 having the same shape and electrical conductor wire end 20e2 as in Figs. 10a-10c.
  • the contact area between the electrical connector 10-3 and the electrical conductor wire 20-2 is now optimized by the provision of multiple flexible members with protrusions that individually touch and retain electrical contact with the flat copper plate 20-2. In this way it is ensured that there is a larger number of contact areas that remain even in case of deformations, rotations, or expansions, which is especially beneficial in high-current applications.
  • Fig. 12a shows a fifth embodiment of the electrical connector 10-4 in accordance with the invention.
  • Fig. 12b shows an enlarged view of part of Fig. 12a, in particular the second terminal 10b of the electrical connector 10-4.
  • the figure shows how the second terminal 10b is also provided with a tapered entry 16b similar to the predefined reduced distance D10b of the second terminal 10b, similar to as what other embodiments have at the side of the first terminal 10a.
  • a coating layer 18b similar to the coating layer 18a in Fig. 5b is illustrated, which may comprise materials such as, e.g., silver, nickel, gold plating, zinc and copper.
  • Fig. 12c shows the electrical connector 10-4 of Fig. 12b after insertion of a connector pin 30.
  • the figure illustrates the minimum lateral dimension D30 of the connector pin 30, which is larger than the predefined reduced distance D10b in Fig. 12b.
  • the flexible members 12b move outwardly to create the required space, but also the earlier-discussed pretension.
  • Fig. 12c also illustrates the contact surface SCb between the second terminal 10b and the connector pin 30 as well as what is meant with tilted surface TSb of the second terminal. It can be observed that the surface of the protruding elements of the flexible members is tilted inward, which compensates for the outward movement of the flexible member 12b, i.e., the contact surface SCb is maintained better during this outward movement.
  • the connector pin 30 is to be inserted into the second terminal 12b of the electrical connector 10-4.
  • the wear-zone protruding parts
  • the coating layer 18b which is often a silver plating or coating layer
  • Fig. 13a shows a charging station 100 without a housing. This figure serves to illustrate an important application area of the invention, namely charging stations for electric vehicles. However, the invention is not limited to this application area.
  • the earlier-discussed electrical connectors 10 and electrical conductor wires 20 are shown as part of an electric socket 40, which is a type-2 socket in this embodiment.
  • the contents of a charging station 100 are shown in Fig. 13a, which comprise a main printed circuit board 110 and a further printed circuit board 110-2 in this example. These printed circuit boards 110, 110-2 are just shown for illustration purposes. What is important is that the charging station 100 comprises circuitry 120 for allowing charging of the electric vehicle.
  • the further printed circuit board 110-2 in this example comprises further circuitry 120-2.
  • Typical circuit components are integrated circuits, capacitors, inductors, conductive tracks, relays, connector pins, residential current sensors, etc.
  • Fig. 13b shows both an electric plug 50p of a charging cable as well as a charging station 100 with a housing.
  • the electric socket 40 on the charging station 100 is covered with a lid in order to protect against moisture.
  • the electric plug 50p (cable plug) in this figure represents a type-2 electric plug, which typically comprises the following connector pins 30: a first signal pin PP, which is a short pin; a second signal pin CP, which is a longer pin; a first phase pin L1 ; a second phase pin L2; a third phase pin L3; a ground pin PE, and a neutral pin N.
  • the electrical connector 10 shown in the figures is a specific embodiment example of the disclosed electrical device 10.
  • Figures showing the electrical conductor wire 20 connected to the electrical connector 10 show examples of the further electrical assembly.
  • the invention may be applied in various applications, such as high-power electrical connectors, plugs, pins & terminals, methods for safe interconnection of conducting elements and materials, spring-loaded electrical connectors, high-power solderless connectors.
  • the invention may serve as a replacement of other (less reliable) solutions, such as solutions that includes soldering, crimping, welding, and/or screw terminals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un ensemble électrique (60) comprenant un connecteur électrique (10) pour une prise électrique (40) pour une douille électrique (50p) d'un câble de charge (50) pour un véhicule électrique et un fil conducteur électrique (20) couplé au connecteur électrique (10). Le connecteur électrique (10) comprend une première borne (10a) au niveau de la première extrémité (10e1), la première borne (10a) étant configurée pour recevoir directement une extrémité (20e) du fil conducteur électrique (20). La première borne (10a) du connecteur électrique (10) comprend au moins deux éléments s'étendant axialement (12a) espacés et définissant un espace de réception (S10a) entre eux pour recevoir une partie d'extrémité du fil conducteur électrique (20), au moins l'un desdits au moins deux éléments s'étendant axialement (12a) étant un élément souple (12a). La première borne (10a) est configurée pour être pré-tendue par flexion vers l'extérieur lors de l'insertion de la partie d'extrémité du fil conducteur électrique (20) dans l'espace de réception (S10a) et pour serrer la partie d'extrémité du fil conducteur électrique (20) entre les éléments s'étendant axialement (12a) pour créer et maintenir un bon contact électrique entre le fil conducteur électrique (20) et le connecteur électrique (10). L'extrémité (20e) du fil conducteur électrique (20) est disposé à l'intérieur de l'espace de réception (S10a) du connecteur électrique (10) et serré par le ou les éléments souples (12a) et le fil conducteur électrique (20) étant ainsi relié au connecteur électrique (10).
PCT/NO2022/050257 2021-11-12 2022-11-14 Ensemble électrique pour prise électrique pour une douille électrique d'un câble de charge, prise électrique comprenant un tel ensemble électrique, station de charge comprenant une telle prise électrique et procédé de connexion d'un connecteur électrique WO2023085950A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20211363 2021-11-12
NO20211363A NO347723B1 (en) 2021-11-12 2021-11-12 Electrical connector for an electric socket for an electric plug of a charging cable, an electric socket comprising such electrical connector, a charging station comprising such electric socket and methods of connecting an electrical connector

Publications (1)

Publication Number Publication Date
WO2023085950A1 true WO2023085950A1 (fr) 2023-05-19

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PCT/NO2022/050257 WO2023085950A1 (fr) 2021-11-12 2022-11-14 Ensemble électrique pour prise électrique pour une douille électrique d'un câble de charge, prise électrique comprenant un tel ensemble électrique, station de charge comprenant une telle prise électrique et procédé de connexion d'un connecteur électrique

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WO (1) WO2023085950A1 (fr)

Citations (7)

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TW201232951A (en) * 2011-01-28 2012-08-01 Santa Electronics Inc Power connector
US20150249307A1 (en) * 2012-10-19 2015-09-03 Lear Corporation Electrical Connector Assembly
US20160254611A1 (en) * 2011-08-22 2016-09-01 Lear Corporation Connector assembly and terminal retainer
US20170279210A1 (en) * 2016-03-23 2017-09-28 Te Connectivity Germany Gmbh Power-Electric Contact Device; Exchangeable Power-Electric Contact Module As Well As Power-Electric Connector
EP3644449A1 (fr) * 2018-10-26 2020-04-29 Aptiv Technologies Limited Ensemble de connexion, contact femelle et procédé de connexion
WO2020167141A1 (fr) * 2019-02-15 2020-08-20 Easee As Ensemble borne pour chargeur de véhicule électrique, chargeur et procédé de fabrication des deux
FR3099303A1 (fr) * 2019-07-22 2021-01-29 Aptiv Technologies Limited Contact de puissance femelle

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US7048596B2 (en) * 2001-10-18 2006-05-23 Konnektech, Ltd. Electrical connector grid anchor and method of making the same
DE102018100831A1 (de) * 2018-01-16 2019-07-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Ladestecker für Elektroautos und dessen Herstellung
US11862890B2 (en) * 2019-05-22 2024-01-02 Sumitomo Wiring Systems, Ltd. Connection terminal and connector

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Publication number Priority date Publication date Assignee Title
TW201232951A (en) * 2011-01-28 2012-08-01 Santa Electronics Inc Power connector
US20160254611A1 (en) * 2011-08-22 2016-09-01 Lear Corporation Connector assembly and terminal retainer
US20150249307A1 (en) * 2012-10-19 2015-09-03 Lear Corporation Electrical Connector Assembly
US20170279210A1 (en) * 2016-03-23 2017-09-28 Te Connectivity Germany Gmbh Power-Electric Contact Device; Exchangeable Power-Electric Contact Module As Well As Power-Electric Connector
EP3644449A1 (fr) * 2018-10-26 2020-04-29 Aptiv Technologies Limited Ensemble de connexion, contact femelle et procédé de connexion
WO2020167141A1 (fr) * 2019-02-15 2020-08-20 Easee As Ensemble borne pour chargeur de véhicule électrique, chargeur et procédé de fabrication des deux
FR3099303A1 (fr) * 2019-07-22 2021-01-29 Aptiv Technologies Limited Contact de puissance femelle

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NO20211363A1 (en) 2023-05-15

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