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
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/02—Contact members
  • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C9/00—Alloys based on copper
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C9/00—Alloys based on copper
  • C22C9/02—Alloys based on copper with tin as the next major constituent
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C9/00—Alloys based on copper
  • C22C9/04—Alloys based on copper with zinc as the next major constituent
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C9/00—Alloys based on copper
  • C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
• • 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
  • H01R13/04—Pins or blades for co-operation with sockets
  • H01R13/05—Resilient pins or blades
• • 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
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
  • H01R43/048—Crimping apparatus or processes
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

• the invention relates to a connector according to the preamble of independent claim 1.
• Such connectors and mating connectors are used to establish an electrical and mechanical connection between two electrical lines or an electrical line and a device, in particular in an industrial environment.
• Connectors are mainly used for electrical contact elements.
• the contact elements are required to establish an electrical connection between an electrical conductor, in particular a stranded conductor, and a connection end of a pin or socket contact.
• connection technology of the crimp is often selected for connecting stranded conductors to an electrical contact element.
• the contact elements therefore have an axial bore at their conductor connection end, into which the stripped end of the stranded conductor is inserted and crimped.
• connection technology can also be selected for connecting stranded conductors to an electrical contact element.
• the connector housing is manufactured using cutting technology.
• DE 10 2014 104 406 A1 shows a contact element which is made of solid material in a turning process. So-called rotary transfer machines are used as production machines, in particular for contact elements, as are described, for example, in WO 99/43464 A2. Manufacturing machines of this type have a plurality of workstations which are passed through in succession by a workpiece or a blank.
• Lead is one of the most toxic heavy metals. If lead gets into the environment, it can cause serious damage. For ecological reasons, it is therefore sensible to largely do without lead.
• the object of the invention is to provide a connector which conforms to EU directives and
• the connector according to the invention consists of at least one connector housing and at least one electrical one
• the connector usually several elements
• the geometry of the contact elements is adapted to their respective task. According to the invention it is provided that
• Connector housing and / or the electrical contact element has a lead content of less than 0.1 percent by weight ( ⁇ 0.1 percent by weight) or
• Such a connector is considered to be particularly environmentally friendly.
• the connector housing and / or the electrical contact element therefore consist of copper or a copper alloy, the lead content of which is ⁇ 0.1 percent by weight, the connector housing and / or the electrical contact element having a tensile strength Rm> 300 MPa and an elongation at break A1 1, 3> 5% has or have.
• the tensile strength is one of several strength parameters of a material, the maximum mechanical tensile stress that the material can withstand. It is mostly derived from the results of the tensile test calculated as the maximum tensile force Fmax based on the original cross-section AO of the standardized tensile test.
• the elongation at break A is a characteristic of materials science, which indicates the permanent extension of the tensile test after the break, based on the initial measuring length. It characterizes the
• Deformability (or ductility) of a material and, depending on the characteristic mechanical behavior of the material types, can be defined differently and can also be labeled with different symbols.
• the initial measuring length LO is determined by measuring marks on the tensile test before the tensile test.
• the connector housing or the electrical contact element or the connector housing and the electrical contact element consist of a copper-zinc alloy.
• the connector housing and / or the electrical contact element preferably consists of
• CuNiZn copper-nickel-zinc alloy
• Zinc content from 20 percent by weight to 30 percent by weight or Copper or a low-alloy copper with additional components up to 3 percent by weight.
• the respective border areas are included in the value areas.
• Cu-ETP is an oxygen-containing (tough-polarized) copper produced by electrolytic refining, which has a very high conductivity for heat and electricity (in the soft state min. 57 m W-1 / mm2).
• the substances preferably contain a lead-free admixture. This improves the machining processing of the aforementioned substances.
• the lead-free admixture preferably makes up a proportion of 0.5 to 1.5 percent by weight. It is particularly advantageous if the lead-free admixture is less than or equal to 1 percent by weight. It is particularly advantageous if the lead-free admixture contains Fe and / or Sn and / or Si and / or Ni.
• the contact elements and metallic connector housings and their geometries currently in the FIARTING Technology Group's product portfolio can be realized with the aforementioned materials. Different geometries can be used, for example different fabrics can be realized.
• the contact elements and / or connector housings are realized in particular using the turning technology (turning method). Turning, in the context of the present document also called turning process or turning process, together with drilling, milling and grinding, is one of the most important manufacturing processes in cutting technology. As with all of these processes, chips are cut from a workpiece to create the desired shape. When turning, the workpiece - the turned part - rotates around its own axis, while the tool - the turning tool - travels the contour to be created on the workpiece. The corresponding machine tool is a lathe.
• the electrical contact element is usually made from solid material.
• the turning technology on curve or CNC controlled machines is used.
• connection area of the contact element are also cutting
• the contact area of the contact element can be designed both as a pin contact or as a socket contact.
• the connection area is designed, for example, as a crimp connection, in particular to
• the crimp connection is realized in particular by a drilling process on the contact element.
• connection area introduced.
• the hollow cylinder is slotted in the axial direction and is thus opened laterally.
• a force is exerted on the outer surface of the slotted hollow cylinder, so that the opposite slit edges are bent inwards and rolled up. Im permanently deformed
• the connection area of the contact element is now the compressed strands of the conductor cable.
• the contact element can be made, for example, from a blank that passes through at least 8 workstations on the production machine in a production cycle. In these at least 8 workstations, the following manufacturing steps are carried out on the blank, which in total result in a finished contact element:
• the blank from which the contact element is made has a connection area and a plug area.
• the connection area is used later for connecting an electrical conductor to the contact element.
• the plug-in area is used for electrical contact with a
• Hole represents the opening of the contact element for the
• c) optionally provide the blank in the connection area with an axial slot and another slot perpendicular to it.
• Hole represents the opening of the contact element for the
• c) optionally provide the blank in the connection area with an axial slot and another slot perpendicular to it.
• the contact element according to the invention is advantageously provided with an outer coating, for example in order to optimize the electrical conductivity or the current carrying capacity of the contact element.
• an outer coating for example in order to optimize the electrical conductivity or the current carrying capacity of the contact element.
• This can be, for example, a silver-tungsten alloy, which is used in particular in an electroless galvanic
• the layer thickness of the deposited silver-tungsten alloy can be from 0.05 to 0.5 micrometer inclusive, preferably from 0.05 to 0.3 micrometer inclusive, the silver-tungsten alloy deposited in the electroless method having a layer thickness of 0.25 pm one
• Silver alloy coating can be provided. The thickness of the silver alloy coating
• the deposited silver or silver alloy coating, including the carbon nanoparticles is from 0.05 to 7.0 micrometers inclusive, but preferably from 0.1 to 3.0 micrometers inclusive.
• 1 is a perspective view of a pin contact
• FIG. 2 is a perspective view of a socket contact
• Fig. 3 is a perspective view of a variant of the
• Fig. 4 is a perspective view of a variant of the
• Fig. 5 is a perspective view of a
• the FIARTING technology group provides on the Internet, in the so-called download center (https://www.harting.com/DE/de/downloadcenter)
• Contact elements are shown, which can be produced, for example, with the materials mentioned above, in particular with the aid of cutting technology.
• Figure 1 shows a perspective view of a pin contact.
• the contact element 1 can be in a contact area 2 and
• connection area 3 can be divided.
• the contact area 2 is as
• connection area 3 is formed by a hollow cylinder 3a, which contains an axial slot 4.
• a ring element 5 is located between the contact and connection area.
• An insulating body (not shown here), which is provided for receiving contact pins, contains a recess into which the ring element 5 of the contact pin can be inserted. As a result, the contact pin is held in the insulating body.
• Figure 2 shows a perspective view of a
• the contact area 2 is formed from a hollow cylinder, into which wedge-shaped slots 2c are made, so that individual spring arms 2b are formed. The end regions of the spring arms are bent inwards towards the plug-in mouth, so that a circular plug-in mouth is formed.
• the ring element 5 here essentially has the diameter of the socket-shaped contact area 2.
• FIG. 3 shows a further variant of the socket contact.
• the same parts have the same reference numerals.
• the connection area 3 of this socket contact has, in addition to the axial slot 4, a second slot 6 which is oriented essentially transversely to the axial slot 4.
• FIG. 4 shows a further variant of a pin contact.
• the contact pin has a U-profile 7.
• a wedge-shaped slot 6 ' is made in the U-profile 7.
• the flanks 7a of the U-profile are chamfered. In other embodiments, the flanks 7a can also be parallel or inclined inwards or outwards.
• FIG. 5 shows a perspective view of a
• FIG. 5 shows a perspective view of a
• Connector housing 10 which can be produced from the above-mentioned lead-free materials. Again, it applies to the said
• the connector housing 10 consists of a base body 100, which forms a plug side and a cable outlet side. On the plug side, the contact elements (not shown) form the plug face of the connector.
• the contact elements can be pin or socket contacts, which are produced, for example, by the method presented above.
• the base body 100 has a cable outlet side
• integrated strain relief can be screwed on.
• the locking element 200 is pushed onto a cylindrical extension of the base body 100 on the plug side.
• An external thread 210 is provided at the end, via which the
• Connector housing 10 can be connected to a mating connector and / or a device socket.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Manufacturing & Machinery (AREA)
• Manufacturing Of Electrical Connectors (AREA)
• Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=63678951

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (5)

Family Cites Families (26)

• 2018
  • 2018-08-30 DE DE202018104958.5U patent/DE202018104958U1/de not_active Ceased
• 2019
  • 2019-08-16 CN CN201980056510.1A patent/CN112640222A/zh active Pending
  • 2019-08-16 EP EP19762307.7A patent/EP3844847A1/de not_active Withdrawn
  • 2019-08-16 KR KR1020217008880A patent/KR20210054534A/ko unknown
  • 2019-08-16 WO PCT/DE2019/100738 patent/WO2020043231A1/de unknown
  • 2019-08-16 US US17/271,908 patent/US11476607B2/en active Active
  • 2019-08-16 BR BR112021002004-7A patent/BR112021002004A2/pt not_active Application Discontinuation

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