EP3799210A1 - Élément de contact - Google Patents

Élément de contact Download PDF

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Publication number
EP3799210A1
EP3799210A1 EP20000342.4A EP20000342A EP3799210A1 EP 3799210 A1 EP3799210 A1 EP 3799210A1 EP 20000342 A EP20000342 A EP 20000342A EP 3799210 A1 EP3799210 A1 EP 3799210A1
Authority
EP
European Patent Office
Prior art keywords
area
contact element
plug
cylindrical opening
crimping
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
EP20000342.4A
Other languages
German (de)
English (en)
Inventor
Alexander Bruland
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.)
Harting Automotive GmbH and Co KG
Original Assignee
Harting Automotive 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 Harting Automotive GmbH and Co KG filed Critical Harting Automotive GmbH and Co KG
Publication of EP3799210A1 publication Critical patent/EP3799210A1/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/26—End pieces terminating in a screw clamp, screw or nut

Definitions

  • the invention is based on a contact element according to the preamble of independent claim 1.
  • Such contact elements are required in order to establish an electrical connection between usually two plug connectors, which must be able to transmit high electrical current from one connector to a corresponding mating connector.
  • the prior art has many contact elements for the transmission of high electrical currents. Particularly in the field of electromobility, there are also contact elements that are designed in two parts. These are used to create a modularity in order to be able to use different adapters for corresponding countries / regions with one charging plug. These are usually socket contacts.
  • Pin contacts for the transmission of high currents are usually machined from a workpiece.
  • the material for high-quality contacts is very expensive.
  • Such contact elements have hitherto been turned “from the solid", that is, machined from a (cylindrical) profile to the required dimensions.
  • a large part of the cost-intensive contact material is wasted.
  • the plug-in area for establishing an electrically conductive connection with a mating plug-in area of a congruent contact element and the crimping area for the non-positive, electrically conductive connection of the contact element to an electrical conductor.
  • the object of the invention is to offer a contact element which both lowers the general material consumption and minimizes the associated costs resulting from the unused material and to adapt the areas of the contact element to the different requirements in each case.
  • an electrical contact element has a plug-in area for producing an electrically conductive connection with a plug-in area of a congruent contact element.
  • the contact element according to the invention has a crimping area with a cylindrical opening for connecting the contact element to an electrical conductor.
  • the plug area is releasably connected to the crimping area.
  • Contact elements designed specifically as pin contacts benefit significantly from this embodiment. Expensive and high quality materials for making an electrical connection can be used more effectively. At the same time, a cheaper material can be used for the crimping area, both in terms of material costs and deformability.
  • the crimping area to be the area of a contact element which, at best, is deformed with the aid of a tool in such a way that a non-positive connection is established between the crimping area and an (electrical) conductor that can be connected to it.
  • the crimping area provides at least one second cylindrical opening for receiving the plug-in area, the second cylindrical opening having a smaller diameter than the diameter for receiving the conductor.
  • the second cylindrical opening is expediently a depression, that is to say an opening that does not go through. This prevents a plug-in area from being introduced or passed through the crimping area undesirably during assembly.
  • connection of the plug-in area and the crimping area is realized by an interference fit. It is also useful to support this interference fit.
  • a pattern is formed on one end of the plug-in area, which is brought into engagement with the crimping area (3). Such a pattern, for example a knurl, can improve the fit of the plug element in the crimping area.
  • the plug-in area has an axial threaded opening.
  • a plug-in area provided with such a threaded opening can optimally secure a connection by means of an interference fit and additionally by means of a screw connection.
  • the plug-in area is therefore connected to the crimping area by a screw connection.
  • the crimping area has a bolt-like extension on its plug-in area-side end face which is provided with a thread.
  • This extension can be formed in a cylindrical opening.
  • a plug-in area can be screwed onto this thread extension.
  • the crimping area provides a third cylindrical opening for the passage of a screw.
  • This third cylindrical opening has a smaller diameter than the diameter of the first cylindrical opening and the diameter of the second cylindrical opening.
  • the crimping area has a funnel-shaped transition between the first cylindrical opening and the at least one further cylindrical opening.
  • This funnel-shaped transition expediently runs towards said third cylindrical opening.
  • a countersunk head screw can be inserted through the course from the first cylindrical opening to the third cylindrical opening, so that a secure screw connection is established and at the same time sufficient space remains for secure crimping of the conductor.
  • a particularly clever embodiment provides for the plug-in area and the crimping area to be made from different materials.
  • a high-quality material can thus be used inexpensively for establishing an electrical connection through the plug-in area.
  • a more deformable material can therefore be used for the crimping area.
  • both areas, the plug-in area and the crimping area can be formed from materials that are optimally designed for the respective area of application.
  • a plug-in area can be provided beforehand with safety devices, for example touch protection elements, for example by overmolding with a dielectric plastic.
  • the Figure 1 shows a contact element 1 according to the invention for making electrical connections.
  • the plug-in area 2 is shown separated from the crimping area 3.
  • the pattern 5, which is formed on the plug-in area, serves to strengthen the interference fit between the plug-in area 1 and the second cylindrical opening 7.
  • the crimping area 3 is usually basically cylindrical and has three cylindrical openings 4, 7 and 8 in the embodiment shown.
  • the first cylindrical opening 4 of the crimping area 3 is provided with a diameter d1 to receive a conductor (not shown). After a conductor has been picked up, the outer wall is squeezed onto the stripped conductor with a tool. This process is known as "crimping".
  • the second cylindrical opening 7 is provided to receive the plug-in area 2 with its molded-on pattern 5.
  • the diameter d2 of the second cylindrical opening 7 is less than or equal to the diameter of the plug-in area 2. This achieves an above-mentioned interference fit.
  • the sectional view also makes it clear that a third cylindrical opening 8 has a smaller diameter d3.
  • the third cylindrical opening 8 is a passage between the first cylindrical opening 4 and the second cylindrical opening 7. Through the third cylindrical opening 8 can to. a screw 10 can be carried out for improved safety. This screw 10 is skilfully screwed into a threaded opening 6 in the plug-in area 2.
  • a countersink is provided which forms a funnel-shaped profile 9 between the first cylindrical opening 4 and the third cylindrical opening 8.
  • said screw 10 can be designed as a countersunk screw and can be inserted in a space-saving and simple manner. Furthermore, the function of the crimping area 3 would not be significantly affected by the use of a countersunk head screw.
  • a major advantage of the separation of plug area 2 and crimping area 3 is that a high-quality material can be used to establish an electrical connection for plug area 2, while a cheaper, more malleable material can be selected for crimping area 3.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP20000342.4A 2019-09-25 2020-09-24 Élément de contact Pending EP3799210A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019125798.0A DE102019125798A1 (de) 2019-09-25 2019-09-25 Kontaktelement

Publications (1)

Publication Number Publication Date
EP3799210A1 true EP3799210A1 (fr) 2021-03-31

Family

ID=72659581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000342.4A Pending EP3799210A1 (fr) 2019-09-25 2020-09-24 Élément de contact

Country Status (2)

Country Link
EP (1) EP3799210A1 (fr)
DE (1) DE102019125798A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5358433A (en) * 1992-06-09 1994-10-25 Framatome Connectors International Female electrical contact terminal for a connector
US5612508A (en) * 1995-03-06 1997-03-18 Watteredge-Uniflex, Inc. Flexible jumper and method of making
US8221144B1 (en) * 2011-05-03 2012-07-17 Itt Manufacturing Enterprises, Inc. Partial discharge resistant connector
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569918A (en) * 1969-10-30 1971-03-09 Itt Multipiece electrical contact
DE102016206914A1 (de) * 2016-04-22 2017-10-26 Phoenix Contact E-Mobility Gmbh Leistungskontakt mit auswechelbarem Kontaktbereich

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5358433A (en) * 1992-06-09 1994-10-25 Framatome Connectors International Female electrical contact terminal for a connector
US5612508A (en) * 1995-03-06 1997-03-18 Watteredge-Uniflex, Inc. Flexible jumper and method of making
US8221144B1 (en) * 2011-05-03 2012-07-17 Itt Manufacturing Enterprises, Inc. Partial discharge resistant connector
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

Also Published As

Publication number Publication date
DE102019125798A1 (de) 2021-03-25

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