EP2976810B1 - Elément de contact - Google Patents

Elément de contact Download PDF

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Publication number
EP2976810B1
EP2976810B1 EP14708055.0A EP14708055A EP2976810B1 EP 2976810 B1 EP2976810 B1 EP 2976810B1 EP 14708055 A EP14708055 A EP 14708055A EP 2976810 B1 EP2976810 B1 EP 2976810B1
Authority
EP
European Patent Office
Prior art keywords
web
contact
torsion
strips
web edge
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.)
Active
Application number
EP14708055.0A
Other languages
German (de)
English (en)
Other versions
EP2976810A1 (fr
Inventor
Mark STURGESS
Falk BLUMENROTH
Tom Ledermann
Lucas WIRZ
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.)
Staeubli Electrical Connectors AG
Original Assignee
Staeubli Electrical Connectors AG
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 Staeubli Electrical Connectors AG filed Critical Staeubli Electrical Connectors AG
Publication of EP2976810A1 publication Critical patent/EP2976810A1/fr
Application granted granted Critical
Publication of EP2976810B1 publication Critical patent/EP2976810B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622Screw-ring or screw-casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/48Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4881Clamped connections, spring connections utilising a spring, clip, or other resilient member using a louver type spring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/03Contact members characterised by the material, e.g. plating, or coating materials
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/15Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket

Definitions

  • the present invention relates to a contact element for establishing an electrical contact between two electrical conductor elements or contact parts according to the preamble of claim 1.
  • the contact element after EP 0 520 950 comprises two strips which are connected to one another by means of resilient webs.
  • the webs can be pivoted relative to the strips, with a torsional force acting on the connection point between the web and the strips.
  • the EP 0 520 950 has a number of disadvantages. Due to the shape of the web, the degree of deformation in the area of the connection point is relatively high, which causes high stresses in the area of the connection point. This necessitates the use of a high-strength copper alloy, in particular a high-strength beryllium-containing copper alloy. Such alloys are very expensive and beryllium can have health consequences if released.
  • the object of the invention is to specify a contact blade or a contact element which overcomes the disadvantages of the prior art.
  • the contact element should be made more robust so that the number of contacts can be increased.
  • a contact element according to claim 1 is used to establish an electrical contact between two electrical conductors or contact parts.
  • the shape of the electrical conductors or contact parts can vary, for example a socket and plug connection or a connection between two flat contacts with flat or planar conductors or contact parts.
  • the contact element according to claim 1 comprises at least two strips which are parallel to one another and extend along or parallel to or in the direction of a longitudinal axis and a row of webs which are arranged between the strips and are connected to the strips. The webs are each resiliently connected to one of the strips via a first torsion section and to another of the strips via a second torsion section.
  • the ridges are inclined or angled relative to the strips in the deformed state such that a first contact portion extends above the strip and a second contact portion extends below the strip.
  • the contact portions are provided by the web.
  • the webs each have a front web edge and a rear web edge, which front web edge has a bulge and which rear web edge has an indentation which matches or complements the bulge of an immediately adjacent web edge. The bulge provides said first contact portion.
  • the webs also have two rear web sections on the side of the indentation, which provide the second contact section. An electrical contact is established between the web and the electrical conductor or the contact part via the contact sections. The front edge of the web and the rear edge of the web extend from the first torsion section to the second torsion section.
  • front edge of the web and the rear edge of the web of two directly adjacent webs touch each other in the non-deformed state over their entire length, in particular at least approximately.
  • the front edge of the web and the rear edge of the web are particularly preferably in direct contact with one another.
  • the formation of the web edges has the advantage that such a contact element can be produced efficiently with maximum utilization. In particular, the punching waste can be reduced.
  • a maximum expansion of the web can also be achieved.
  • the web as such is extended from the first contact section to the second contact section, viewed in the direction of the longitudinal axis.
  • the angular movement when providing an electrical contact can be reduced compared to contact elements known from the prior art, which has the advantage that the torsion sections are relieved with regard to mechanical stress. This can, for example, increase the service life.
  • larger contact paths can be provided with the same tension in the torsion section. Although the latter does not directly increase the service life, it has the significant advantage that the contact element can be used in a wide variety of contact configurations, which increases flexibility.
  • the webs In the deformed state, the webs can be pivoted relative to the strips, with a rotation acting on the torsion sections.
  • the torsion sections are designed to be resilient, so that in a contact situation the webs are constantly pressed against the contact parts by the spring action, so that a defined electrical contact can be provided.
  • the front edge of the web and the rear edge of the web preferably run parallel and/or complementarily or match one another.
  • the front edge of the web and the rear edge of the web run identically to one another, with the distance between the front edge of the web and the rear edge of the web viewed in the longitudinal axis being constant over the entire width of the web from the first torsion section to the second torsion section.
  • the torsion section is provided by a series of openings arranged at regular intervals from one another, with the torsion section being formed in the area between two openings that follow one another directly in the longitudinal axis and are adjacent. Viewed in the longitudinal axis, the torsion section is thus delimited and defined by two openings. In a transverse direction, which runs at right angles to the longitudinal direction, the torsion sections are essentially delimited by the extension of the openings in the same direction. The torsion section has essentially the same extent in the transverse direction as the opening.
  • the openings are the only punches that are made in the area of the webs. In this respect, the punching waste can be kept to a minimum.
  • the front land edge extends rearwardly from the bulge on either side of that bulge and defines a front side portion. Sections of this front side section run essentially at right angles to the longitudinal axis, in particular in an area which adjoins the torsion section.
  • the rear land edge extends rearwardly from the indentation on either side of that indentation and defines a rear side portion. Sections of this rear side section run essentially at right angles to the longitudinal axis, in particular in an area which adjoins the torsion section.
  • the side sections are parts of the front web edge and the rear web edge.
  • the front web edge transitions from the bulge to the front side section via a rounded connecting section.
  • the rear web edge transitions from the indentation to the rear side section via a rounded connecting section.
  • the front land edge viewed from one strip to the other strip, is provided by a front side portion, a rounded connecting portion, the bulge, a rounded connecting portion and another side portion.
  • the sections mentioned follow one another immediately.
  • the side sections open into the respective torsion section.
  • the rear land edge viewed from one strip to the other strip, is provided by a rear side portion, a rounded connecting portion, the indentation, a rounded connecting portion and another side portion.
  • the sections mentioned follow one another immediately.
  • the side sections flow into the torsion section.
  • the touching web edges of two immediately adjacent webs open together into the same opening in the area of one strip and in the area of the other strip.
  • the front side section and the rear side section of two immediately adjacent webs thus open out together in a common opening, with the web sections preferably running at right angles to the strips in the area of the opening.
  • the aperture has a front section and a rear section, the front section and the rear section preferably being perpendicular to the strips, and the front section and the rear section being connected via two side sections which are preferably parallel to the strips .
  • the breakthrough is thus delimited by the side sections and the front and rear sections. Transition areas between the sections that delimit the opening are preferably formed with a rounding in each case.
  • the front web edge and the rear web edge or the side sections of the web edges open into the opening in the area of the side section of the opening, but not in the area of the rounding.
  • the webs directly following one another along the strips are separated from one another in the region of the web edges by cuts made without removing material and, in the non-deformed state, touch each other at least approximately or almost or completely. At least approximately is to be understood here in such a way that the web edges are only separated from one another by the cut.
  • the bulge has an apex midway between the two strips.
  • a torsion line runs centrally through the torsion section and perpendicular to the longitudinal axis.
  • the distance between the apex and the torsion line in the direction of the longitudinal axis is essentially equal to the distance between the torsion line and the rear web edge in the region of the rear web sections in the direction of the longitudinal axis.
  • the distance between vertex and Torsion line in the direction of the longitudinal axis by a factor in the range of 1.0 and 1.3, in particular 1.15 to 1.25 greater or smaller than the distance between the torsion line and the rear web edge in the area of the rear web sections in the direction of the longitudinal axis.
  • the torsion sections are preferably deformed by twisting during manufacture.
  • the web itself is preferably formed essentially as a planar plane between the two torsion sections, apart from the bulge, and the web sections extending laterally from the indentation, which is at an angle to the strips.
  • the torsion section could also be referred to as a resilient swivel joint.
  • the bulge and/or the web sections are preferably formed with a curvature relative to the planar plane.
  • the curvature is preferably oriented towards the strips. The curvature can thereby provide the effective contact section.
  • the strips are particularly preferably provided with a reinforcing bead, which extends in the direction of or parallel to the longitudinal axis.
  • the reinforcement bead preferably has a U-shaped cross section and/or a rectangular cross section and/or a rounded cross section.
  • the height of the reinforcement bead in the direction perpendicular to the surface of the strip is particularly preferably smaller than the extension of the web in the corresponding direction at maximum deflection of the web. In this way, the conductors or contact parts do not come into contact with the reinforcing bead.
  • the contact element is or consists of a beryllium-free metal alloy, in particular a beryllium-free copper alloy.
  • This choice of material has the advantage that no beryllium is used in production.
  • dispensing with the beryllium has the disadvantage that the strength of the material is reduced overall, which means that the maximum permissible stresses in the torsion section are also lower.
  • the contact element is particularly preferably designed in one piece.
  • a contact element 1 for mediating an electrical contact between two electrical conductors is shown.
  • the contact element 1 can be connected to different electrical conductors.
  • a socket and plug connection is mentioned here as an example.
  • flat contacts can also be electrically conductively connected to the contact element.
  • the contact element in the Figure 1a/1b is shown in the undeformed state.
  • the Figures 2 to 6 show the contact element in the deformed state.
  • exemplary installation situations are shown.
  • the contact element 1 comprises at least two strips 2, 3 parallel to one another and extending in the direction or parallel to a longitudinal axis L.
  • the strip 2 lies at a distance from the strip 3.
  • the surfaces of the two strips 2, 3 span a plane E and lie in this plane E in the undeformed and non-installed state.
  • the plane E essentially serves as a definition of some other elements.
  • the strips 2, 3 extend in the direction of a longitudinal axis or along a circumference of a plug or socket body, depending on the contact situation.
  • the strips 2, 3 are connected to one another via webs 14.
  • the webs 14 bridge the gap between the two strips 2, 3.
  • the webs 14 essentially serve to connect the first strip 2 to the second strip 3, the webs 14 being connected to the strips 2, 3 here via torsion sections 4, 5 stand.
  • the webs 14 provide the effective electrical contact between the two conductors and may therefore also be referred to as contact webs 14. In the deformed state, the webs 14 can be moved resiliently with respect to the strips 2, 3.
  • the webs 14 are resiliently connected via a first torsion section 4 to the first strip 2 and with a second torsion section 5 resiliently to the second strip 3 .
  • the torsion sections 4, 5 are resilient and serve as a torsion joint for the webs 14.
  • Each web 14 has a first and a second torsion section 4, 5 associated with it.
  • the resilient design ensures, on the one hand, that the webs 14 are reset after the electrical contact between the conductors has been removed and, on the other hand, that a force is provided against the surfaces of the conductors in the contacted state, as a result of which a defined contact is provided between webs 14 and the conductors.
  • the webs 14 are inclined or angled in relation to the strips 2, 3 in the deformed state.
  • a first contact section 6 of the web 14 extends above the strips 2, 3 and a second contact section 7 extends below the strips 2, 3. This can also be done in FIG figure 4 be recognized particularly well.
  • the contact sections 6, 7 serve to contact the two conductors to be electrically connected.
  • the first contact section 6 here comprises a contact point and the second contact section 7 here comprises two contact points arranged at a distance from one another.
  • the webs 14 When an electrical contact is established, the webs 14 are pivoted about the torsion section 4, 5. The angle of inclination ⁇ of the web 14 to the strips 2, 3 is thereby reduced. The first contact section 6 and the second contact section 7 are thus moved to the strips 2, 3. The contact element 1 is in contact with corresponding surfaces of the electrical conductors to be connected via the contact sections 6 , 7 . The electrical contact between the conductor in question and the contact element 1 is provided via this contact. The web 14 provides the electrical contact between the conductors.
  • Each of the webs 14 has a front web edge 8 and a rear web edge 9 .
  • the front web edge 8 has a bulge 10 .
  • the rear edge of the web has a indentation 11 on.
  • the indentation 11 of a web 14 is suitable for the bulge 10 of the immediately adjacent web 14.
  • two immediately adjacent webs are denoted by reference numerals 14a and 14b.
  • the indentation 11 of the front web 14a is in contact with the bulge 10 of the rear web 14b.
  • the bulge 10 is designed to match or complement the indentation 11 . In other words, it can also be said that the bulge 10 and the indentation 11 are in contact with one another.
  • the bulge 10 provides the said first contact portion 6 ready.
  • the webs 14 have two rear web sections 13 laterally to the indentation 11 . These rear web sections 13 provide the second contact section 7 .
  • the front web edge 8 and the rear web edge 9 extend from the first torsion section 4 to the second torsion section 5.
  • the torsion sections 4 and 5 are in FIG Figure 1a shown hatched in connection with a web 14 .
  • the front web edge 8 and the rear web edge 9 of two directly adjacent webs 14 touch in the non-deformed state over their entire length.
  • touch is understood to mean that the webs 14 are either in direct contact with one another or are objected to by an extremely small amount in the range of a few hundredths or tenths of a millimeter.
  • the front web edge 8 and the rear web edge 9 of two directly adjacent webs 14 touch at least approximately in the undeformed state.
  • the ridges 14a and 14b are two immediately adjacent ridges. The front web edge 8 of the web 14b is thus in contact with the rear web edge 9 of the web 14a.
  • the webs 14 of a contact element 1 are each formed identical to one another. This means that each web which connects the strip 2 to the strip 3 is formed in the same way as the adjacent web 14 . A defined electrical contact can thus be established.
  • the front web edge 8 and the rear web edge 9 of a web 14 are preferably formed parallel to one another.
  • the two web edges 8, 9 thus run parallel to each other.
  • the web thus has the same dimension in the direction of the longitudinal axis L over its entire width B. This measure bears the reference A in the Figure 1b .
  • the width B of the web 14 is defined from the connection point of the web 14 to the first torsion section 4 to the connection point of the web 14 to the second torsion section 5.
  • the web 14 thus extends from the first torsion section 4 to the second torsion section 5.
  • the front web edge 8 is preferably designed to complement or match or supplement the rear web edge 9 .
  • the torsion sections 4, 5 are provided by a series of openings 15 arranged at regular intervals from one another.
  • the openings 15 are arranged between the webs 14 and the strips 2,3.
  • the part remaining between two openings 15 provides the torsion section 4 , 5 .
  • the torsion section 4, 5 is thus formed by the area between two adjacent openings 15 which follow one another directly in the longitudinal axis.
  • the distance between two adjacent openings essentially corresponds to the distance A between the front web edge 8 and the rear web edge 9 of a web 14. This distance bears the reference D.
  • the openings 15 on the left in the torsion sections 4 are mirror-symmetrical to the longitudinal axis L with respect to the openings 15 on the right in the torsion section 5.
  • the extent of the openings 15 in the transverse direction thus defines the length of the torsion section between the strips 2, 3 and the web 14.
  • All openings 15 have the same cross section.
  • the openings 15 are arranged one behind the other in a row as seen in the direction of the longitudinal axis L.
  • the shape of the opening 15, which influences the shape of the torsion sections 4, 5, is explained in more detail below.
  • the front web edge 8 extends backwards on both sides of this bulge 10 as seen from the bulge 10 .
  • This section 12 may be referred to as the front side section.
  • This front side section 12 runs in the area of the torsion sections 4 , 5 essentially at right angles to the longitudinal axis L and then merges into the bulge 10 via a rounded connecting section 16 .
  • Seen from the torsion section 4 the web 14 adjoins the torsion section 4 with the front side section 12 .
  • the front side section 12 is followed by the rounded connecting section 16 which merges into the bulge 10 .
  • the bulge 10 then crosses the central or longitudinal axis L between the strip 2 and the strip 3 and then merges into the rounded connecting portion 16 and the front side portion 12 which in turn connects to the torsion portion 5 .
  • the rear web edge 9 extends from the indentation 11 on both sides of this indentation 11 to the rear.
  • the rear web edge 9 defines a rear side section 28 which runs essentially parallel to the front side section 12 .
  • the area of the web 14 which runs to the side of the indentation 11 forms the rear web section 28 which provides the contact section 7 .
  • the rear side section 28 runs in sections at right angles to the longitudinal axis L and is connected to the indentation 11 via a rounded connecting section 17 . Seen from the torsion section 4 , the web 14 adjoins the torsion section 4 with the rear side section 28 .
  • the rear side section 28 is followed by the rounded connecting section 17 which merges into the indentation 11 .
  • the Indentation 11 then crosses the central axis between strip 2 and strip 3 and then merges into rounded connecting portion 17 and rear side portion 28, which in turn connects to torsion portion 5.
  • the front side section 12 and the rear side section 28 of two adjacent webs 14 open together in a common opening 15.
  • the opening bears the reference number 29.
  • the web sections 12, 28 preferably run in the region of the opening 29 at right angles to the strips 2, 3.
  • the breakthrough 15 has in which Figure 1b shown, a front portion 18 and a rear portion 19 on.
  • the front 18 and rear 19 portions are perpendicular to the strips 2,3.
  • the front 18 and rear 19 portions are connected by two side portions 20,21.
  • the side sections 20, 21 preferably run parallel to the strips 2, 3 or can be rounded.
  • the transition areas 22 between the sections 18, 19, 20, 21, which delimit the opening 15, are preferably formed with a curve.
  • the rounding can be designed differently. Differently designed is to be understood, for example, as meaning different radii of curvature for different curves.
  • the front web edge 8 and the rear web edge 9 of two adjacent webs 14 or the side sections 12, 28 of the web edges 8, 9 open into the opening 15 in the area of the side section 21.
  • the web edges 8, 9 or the side sections 12, 28 particularly preferably open out but not in the area of rounding 22 in the breakthrough.
  • the bulge 10 has an apex 23 in the middle between the two strips 2,3.
  • a torsion line 24 runs centrally through the torsion section 4, 5 and at right angles to the longitudinal axis L.
  • the torsion line 24 is thus arranged centrally between two adjacent openings 15.
  • the distance A1 between the apex 23 and the torsion line 24 in the direction of the longitudinal axis is essentially equal to the distance A2 between the torsion line 24 and the rear web edge 9 in the area of the rear web sections 13 in the direction of the longitudinal axis L.
  • the distance A2 is therefore defined as the distance between Torsion line 24 and the rear side portion 28 seen in the direction of the longitudinal axis L.
  • the distance A1 is larger or smaller than the distance A2 by a factor in the range of 1.0 and 1.3, in particular 1.15 to 1.25.
  • the torsion sections 4, 5 are, as in the figure 2 is shown deformed during manufacture, in particular twisted. Due to this twisting, the torsion sections 4, 5 act as spring sections or spring joints.
  • the web 14 between the two torsion sections 4, 5 is, apart from the bulge 10 and the web sections 13 extending laterally to the indentation 11, essentially a flat plane. This plane is at an angle to the strip 2, 3 or to the plane E. The angle is in the figure 4 indicated by the reference ⁇ .
  • the contact element 1 described herein according to all embodiments is or consists preferably of a beryllium-free metal alloy, in particular of a beryllium-free copper alloy.
  • the contact element 1 as such, ie the strips 2, 3, the torsion sections 4, 5 and the webs 14 essentially have the properties described above.
  • the strips 2, 3 each have a reinforcing bead 27 which extends parallel to the longitudinal axis L. With this reinforcement bead 27, the inherent clamping force of the contact element can generally be increased.
  • This increase in the inherent clamping force has an advantageous effect in particular when installing round rolled contact elements in a socket body or a plug body, because this allows installation in a groove or an indentation with a rectangular cross section.
  • the contact element 1 is pressed into the groove or recess by the inherent clamping force, or the contact element 1 is prevented from falling out of this groove or recess. This is particularly advantageous with large diameters.
  • the reinforcing bead 27 also has advantages when installed flat. Such flat installation configurations are based on the Figures 9 to 12 shown.
  • the reinforcing bead 27 can be oriented differently. In the figure 5 extends the reinforcing bead 27 with respect to the contact portion 6 of the strips 2, 3 down to the contact portion 7. In the figure 6 the arrangement is just the opposite.
  • the reinforcement bead 27 can therefore extend in the direction of the first contact section 6 and/or in the direction of the second contact section 7 . It is also conceivable that several reinforcement beads 27 are arranged next to one another, which extend in the same and/or different directions.
  • the reinforcement bead has a U-shaped cross section.
  • the cross section can also have a different design, for example a rectangular cross section and/or a rounded cross section.
  • FIGs 7a and 7b two installation situations of a contact element 1 with a reinforcing bead 27 in a recess 26 in a socket 32 are shown.
  • the bushing 32 is only partially shown here.
  • the contact element 1 is here in a recess 26, which has a rectangular cross section.
  • the reinforcement bead 27 extends to the base of the recess 26 .
  • the reinforcing bead 27 thus extends in the direction of the second contact sections 7 which are in contact with the bottom of the recess 26 .
  • the reinforcement bead 27 extends away from the bottom of the recess 26 .
  • the reinforcing bead 27 thus extends in the direction of the first contact sections 6.
  • the socket 32 of which, as already mentioned, only one Quarter shown runs completely around the central axis M around.
  • FIGs 8a and 8b two installation situations of a contact element 1 with a reinforcing bead 27 in a recess 26 of a plug 34 are shown.
  • the connector 34 is only partially shown here.
  • the contact element 1 is here in a recess 26, which has a rectangular cross section.
  • the reinforcement bead 27 extends to the base of the recess 26 .
  • the reinforcing bead 27 thus extends in the direction of the second contact sections 7 which are in contact with the bottom of the recess 26 .
  • the reinforcement bead 27 extends away from the bottom of the recess 26 .
  • the reinforcing bead 27 thus extends in the direction of the first contact sections 6.
  • the plug 34 of which only a quarter is shown, as already mentioned, runs completely around the central axis M.
  • contact elements 1 without the reinforcing beads 1 can also be inserted into the recesses 26 of the sockets or plugs shown.
  • FIG 9 an exemplary installation situation of the contact element 1 according to the above description in a contact part or conductor 25 is shown.
  • the contact part 25 here includes a recess 26 with a rectangular cross section, in which the contact element 1 is mounted.
  • the contact element 1 is also secured here with a securing means 30 to the contact part 25 .
  • securing means 30 are shown, which can be used either on their own or in combination with one another.
  • the securing means 30 can be, for example, a screw or a rivet, which are passed through openings 31 arranged in the strips.
  • the openings can be arranged, for example, in the reinforcing beads 27 or directly on the strips 2, 3.
  • the openings are preferably in the form of elongated holes running in the longitudinal axis L. Such a slot 31 is in the figure 8 shown.
  • the securing means can also have the shape of a retaining bracket 30, which as in the Figures 11 and 12 shown act on the strips 2, 3 or the reinforcing beads 27.
  • REFERENCE LIST 1 contact element 30 collateral 2 stripes 31 opening 3 stripes 32
  • Rifle 4 torsion section 34 plug 5 torsion section 6 first contact section 7 second contact section 8th front edge of the bridge 9 rear edge of the bridge 10 bulge 11 indentation 12 front side section 13 rear bridge section 14 webs 15 breakthroughs 16 rounded connection section 17 rounded connection section 18 front section 19 rear section 20 side section 21 side section 22 transition area 23 apex 24 torsion line 25 contact part 26 puncture 27 reinforcement bead 28 rear side section 29 estuary

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  • Connection Of Batteries Or Terminals (AREA)
  • Details Of Resistors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Tumbler Switches (AREA)

Claims (12)

  1. Elément de contact (1) pour établir un contact électrique entre deux conducteurs électriques ou pièces de contact comprenant
    au moins deux bandes (2, 3) s'étendant parallèlement l'une à l'autre et dans la direction d'un axe longitudinal (L) et
    une série de traverses (14) disposées entre les bandes (2, 3) et reliées aux bandes (2, 3),
    dans lequel les traverses (14) sont reliées élastiquement à l'une des bandes (2, 3) via une première section de torsion (4) et à une autre des bandes (2, 3) via une deuxième section de torsion (5) et sont inclinées par rapport aux bandes (2, 3) dans l'état déformé, de telle sorte qu'une première section de contact (6) se prolonge au-dessus de la bande et une deuxième section de contact (7) se prolonge au-dessous de la bande (2, 3),
    dans lequel les traverses (14) ont chacune un bord de traverse avant (8) et un bord de traverse arrière (9), lequel bord de traverse avant (8) a un bombement (10) et lequel bord de traverse arrière (9) a une échancrure (11), qui est adaptée ou complémentaire au bombement (10) d'un bord de traverse immédiatement adjacent,
    dans lequel le bombement (10) fournit la dite première section de contact (6), et
    dans lequel les traverses (14) présentent deux sections de traverse arrière (13) latéralement à l'échancrure (11), qui fournissent la deuxième section de contact (7),
    dans lequel le bord de traverse avant (8) et le bord de traverse arrière (9) s'étendent de la première section de torsion (4) à la deuxième section de torsion (5) et que le bord de traverse avant (8) et le bord de traverse arrière (9) de deux traverses immédiatement adjacentes (14) se touchent sur toute leur longueur à l'état non déformé,
    dans lequel la section de torsion (4, 5) est constituée par une série d'ouvertures (15) disposées à intervalles réguliers les unes des autres, dans lequel dans la zone entre deux ouvertures adjacentes (15) directement consécutives le long de l'axe longitudinal, la section de torsion (4, 5) est formée, et dans lequel la section de torsion (4, 5) s'étend dans une direction transversale (Q), qui est perpendiculaire à l'axe longitudinal (L), sur la largeur maximale de l'ouverture (15) dans la même direction (Q),
    dans lequel, dans l'état non déformé, la section latérale avant (12) et la section latérale arrière (28) de transverses adjacentes (14) s'ouvrent ensemble sur une ouverture commune (15), dans lequel les sections de traverse(12, 28) dans la zone de l'ouverture (18) sont de préférence à un angle droit par rapport aux transverses (2, 3),
    dans lequel l'ouverture (15) présente une section avant (18) et une section arrière (19), dans lequel la section avant (18) et la section arrière (19) s'étendent de manière perpendiculaire aux bandes (2, 3), et dans lequel la section avant (18) et la section arrière (19) sont reliées par deux sections latérales (20, 21) qui s'étendent de manière parallèle aux bandes (2, 3), et dans lequel les zones de transition (22) entre les sections (18, 19, 20, 21), qui délimitent l'ouverture (15), sont de préférence arrondies avec une arrondissage (22),
    dans lequel le bord de traverse avant (8) et le bord de traverse arrière (9) respectivement les sections latérales (12, 28) des bords de traverse (8, 9) dans la zone de la section latérale (20) de l'ouverture (15), mais pas dans la zone de l'arrondissage (22), débouchent sur l'ouverture (15),
    dans lequel les éléments de contact sont réalisés en un alliage métallique sans béryllium, notamment un alliage de cuivre sans béryllium.
  2. Elément de contact (1) selon la revendication 1, caractérisé en ce que le bord de traverse avant (8) et le bord de traverse arrière (9) sont s'étendent en parallèle et/ou complémentaires l'un par rapport à l'autre; et/ou dans lequel le bord de traverse avant (8) et le bord de traverse arrière (9) ont un profil identique, dans lequel la distance (D) entre le bord de traverse avant (8) et le bord de traverse arrière (9), vu le long de l'axe longitudinal (L), est constante sur toute la largeur de traverse de la première section de torsion (4) à la deuxième section de torsion (5).
  3. Elément de contact (1) selon l'une des revendications précédentes, caractérisé en ce que le bord de traverse avant (8) s'étend vers l'arrière depuis le bombement (10) de part et d'autre de ce bombement (10) et définit une section latérale avant (12), qui par sections est sensiblement perpendiculaire à l'axe longitudinal, dans lequel le bord de traverse arrière (9) s'étend vers l'arrière à partir de l'échancrure (11) de part et d'autre de ladite échancrure (11) et définit une section latérale arrière (28), qui par sections est sensiblement perpendiculaire à l'axe longitudinal (L).
  4. Elément de contact (1) selon l'une des revendications précédentes, caractérisé en ce que le bord de traverse avant (8) passe du bombement (10) à la section latérale avant (12) par une section de raccordement arrondie (16) et que le bord de traverse arrière (9) passe de l'échancrure (11) à la section latérale arrière (28) par une section de raccordement (17) arrondie.
  5. Elément de contact (1) selon la revendication 1 à 5, caractérisé en ce que les bords de traverse (8, 9) de deux traverses immédiatement adjacentes (14) débouchent ensemble sur la même ouverture (15) dans la zone d'une bande (2) et dans la zone de l'autre bande (3).
  6. Elément de contact (1) selon l'une des revendications précédentes, caractérisé en ce que les traverses (14) se succédant immédiatement le long des bandes (2, 3) sont séparées les unes des autres dans la zone des bords de traverses (8, 9) par des coupes pratiquées sans enlèvement de matière et qui se touchent dans l'état non déformé au moins approximativement.
  7. Elément de contact (1) selon l'une des revendications précédentes, caractérisé en ce que le bombement (10) présente un sommet (23) au centre entre les deux bandes (2, 3), et qu'une ligne de torsion (24) s'étend au centre de la section de torsion (4, 5) et perpendiculairement à l'axe longitudinal (L),
    dans lequel la distance (A1) entre le sommet (23) et la ligne de torsion (24) dans la direction de l'axe longitudinal (L) est essentiellement égale à la distance (A2) entre la ligne de torsion (24) et le bord de traverse arrière (9) dans la zone des sections de traverse arrière (13) dans la direction de l'axe longitudinal (L), ou
    dans lequel la distance (A1) entre le sommet (23) et la ligne de torsion (24) dans la direction de l'axe longitudinal (L) est supérieure ou inférieure, d'un facteur dans la plage de 1.0 à 1.3, notamment de 1.15 à 1.25, à la distance (A2) entre la ligne de torsion (24) et le bord de traverse arrière (9) dans la zone des sections de traverse arrière (13) dans la direction de l'axe longitudinal (L).
  8. Elément de contact (1) selon l'une des revendications précédentes, caractérisé en ce que les sections de torsion (4, 5) sont déformées lors de la fabrication par torsion et que la traverse (14) entre les deux sections de torsion (4, 5), à l'exception du bombement (10) et de la section de traverse (13) s'étendant latéralement à partir de l'échancrure (11), forme essentiellement un plan plat, qui est à un angle par rapport aux bandes (2, 3), dans lequel le bombement (10) et/ou les sections de traverse (13) sont de préférence réalisés par rapport au plan plat avec une incurvation en courbure.
  9. Elément de contact (1) selon l'une des revendications précédentes, caractérisé en ce que les bandes (2, 3) sont munies d'un bourrelet de renforcement (27) qui s'étend dans la direction de l'axe longitudinal (L), dans lequel le bourrelet de renforcement (27) a de préférence une section transversale en forme de U et/ou de préférence une section transversale rectangulaire et/ou de préférence une section transversale arrondie.
  10. Elément de contact (1) selon la revendication 9, caractérisé en ce que la hauteur du bourrelet de renforcement (27) dans la direction perpendiculaire à la surface de la bande (2, 3) est inférieure à l'extension de la traverse (14) dans le sens direction correspondant, dans l'état de déviation maximale de la traverse (14).
  11. Agencement de contact comprenant une première pièce de contact (25) et une deuxième pièce de contact à connecter électriquement à la première pièce de contact, dans lequel l'une des pièces de contact (25) présente un évidement (26) s'étendant d'une surface de la pièce de contact vers l'intérieur de la pièce de contact, destiné à recevoir l'élément de contact (1) selon l'une quelconque des revendications précédentes, dans lequel l'évidement (26) présente de préférence une section transversale rectangulaire.
  12. Agencement de contact selon la revendication 11, caractérisé en ce que la première pièce de contact a la forme d'une douille (32) et que la deuxième pièce de contact a la forme d'une fiche (34) adaptée à la douille (32), de sorte qu'une connexion de type douille - connecteur peut être fournie, dans lequel l'évidemment (26) est soit dans la douille (32) ou sur la fiche (34) et/ou que l'élément de contact (1) est fixé dans l'évidemment par un moyen de fixation (30), tel qu'une vis, un rivet ou un clip de retenue.
EP14708055.0A 2013-03-18 2014-03-06 Elément de contact Active EP2976810B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13159718 2013-03-18
PCT/EP2014/054344 WO2014146905A1 (fr) 2013-03-18 2014-03-06 Élément de contact

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EP2976810A1 EP2976810A1 (fr) 2016-01-27
EP2976810B1 true EP2976810B1 (fr) 2022-05-04

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US (1) US10135180B2 (fr)
EP (1) EP2976810B1 (fr)
JP (1) JP2016512918A (fr)
KR (1) KR20150131000A (fr)
CN (1) CN105009372B (fr)
MX (1) MX355111B (fr)
WO (1) WO2014146905A1 (fr)

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Also Published As

Publication number Publication date
CN105009372B (zh) 2017-06-09
US10135180B2 (en) 2018-11-20
JP2016512918A (ja) 2016-05-09
US20160226181A1 (en) 2016-08-04
KR20150131000A (ko) 2015-11-24
MX2015013315A (es) 2016-01-25
WO2014146905A1 (fr) 2014-09-25
EP2976810A1 (fr) 2016-01-27
CN105009372A (zh) 2015-10-28
MX355111B (es) 2018-04-05

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