WO2019121809A1 - Élément de contact électrique et procédé de fabrication - Google Patents

Élément de contact électrique et procédé de fabrication Download PDF

Info

Publication number
WO2019121809A1
WO2019121809A1 PCT/EP2018/085683 EP2018085683W WO2019121809A1 WO 2019121809 A1 WO2019121809 A1 WO 2019121809A1 EP 2018085683 W EP2018085683 W EP 2018085683W WO 2019121809 A1 WO2019121809 A1 WO 2019121809A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
bore
notch
nut
lug
Prior art date
Application number
PCT/EP2018/085683
Other languages
German (de)
English (en)
Inventor
Andreas Hartig
Original Assignee
Andreas Hartig
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 Andreas Hartig filed Critical Andreas Hartig
Publication of WO2019121809A1 publication Critical patent/WO2019121809A1/fr

Links

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
    • 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
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • 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
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
    • F16B37/065—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • 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
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies

Definitions

  • the present invention relates to a contact element for the electrical and mechanical connection of a cable to a stud
  • Claim 1 is known from EP 1 117 151 Al.
  • the object of the invention is the known contacting
  • a contacting element for electrically and mechanically connecting a cable to a
  • Holding element subsequent connecting lug through which a bore for insertion of the stud bolt is guided, and one on the
  • Connection lug concentric to the hole patch and on the
  • the bore on a side of the terminal lug opposite the nut has a notch into which the wall buckles.
  • the specified contacting is based on the consideration that the terminal lug of the known contacting with clearly more than 3 mm must be made relatively thick to hold the nut axially in the bore. This is because an edge of the bore in an axial section through the central axis of the bore has a convex shape and the wall can be ajar to the edge only radially so that it does not protrude axially over the bore and later when contacting between the terminal lug and a
  • the specified contact element avoids this disadvantage with the notch, which has any concave shape in the
  • the wall can be bent into this notch so that the wall can accommodate significantly greater axial forces to hold the nut.
  • the thickness of the terminal lug can reduce more than 75%, which represents a significant cost advantage, because it is in the contact element to
  • the specified contacting the terminal lug is made of a sheet metal with a plate thickness between 0.8 mm and 3 mm.
  • the sheet can be punched in a simple manner, with the indicated strengths not only a significant material savings is achieved, necessary for the production
  • the wall has a wall thickness between 0.4 mm and 1.5 mm, whereby the connection lug can be completely received in the notch in the axial direction.
  • the wall is placed symmetrically around a rotational axis of the bore.
  • the wall can be made not only in the form of a sleeve whose wall can bend using a simple pin-shaped tool, such as a grain in the notch, the wall can also absorb the resulting axial forces over the entire circumference of the bore ,
  • a method of manufacturing one of the specified contacting elements comprises the steps of inserting the wall of the nut into the bore and bending the wall into the notch.
  • the specified method comprises the step of pressing a punch against the bore to bend the wall into the notch.
  • a tool for carrying out one of the specified methods comprises a holding device, into which the nut with a side opposite the wall can be inserted, and a punch that can be pressed against the holding device, for bending the wall into the notch.
  • 1 is a schematic view of a grounding rail to the electrical contact via cables and mechanically connected
  • FIG. 2 shows a schematic view of one of the contacting elements of FIG. 1, FIG.
  • Fig. 3 is a schematic sectional view through a part of
  • Fig. 4 is a schematic view of a tool in which the
  • FIG. 1 shows a schematic view of a grounding rail 2, to which via contacting elements 4 cables 6 are electrically and mechanically connected.
  • the grounding rail 2 comprises a base plate 8 made of metal, on which five stud bolts 10 each having an external thread. On two of the stud bolts 10 each having an external thread. On two of the stud bolts 10 each having an external thread. On two of the stud bolts 10 each having an external thread. On two of the stud bolts 10 each having an external thread. On two of the stud bolts 10 each having an external thread. On two of the stud bolts 10 each having an external thread. On two of the
  • Stud bolts 10 are screwed loose nuts 12, while the contacting elements 4 are held on the remaining three stud bolts 10.
  • Each cable 6 comprises a contact wire, of which only one contact wire end 14 can be seen in FIG.
  • the contact wire of each cable 6 is intended to electrically connect an electrical appliance (not further shown) to grounding rail 2 and thus to ground it electrically.
  • an electrical appliance not further shown
  • each cable 6 is the contact wire with an insulator sheath 16th
  • Each contact element 4 has a cable lug 18 with a
  • Terminal lug 20 through which one in Figs. 3 and 4 to see
  • each contact element 4 has a in Fig. 3 and 4 to see support side 26 which is placed on the base plate 8.
  • Opposite to Aufsetzseite 26 comprises each contact element 4, a retaining nut 28, which is analogous to the loose nuts 12 to a corresponding stud 10th
  • Base plate 8 axially guided on the stud bolt 10 is mechanically fixed and electrically contacted.
  • the retaining nut 28 is rotationally symmetrical about an axis of rotation 30 and has a nut body 32, of a
  • the nut body 32 has one in Fig. 3 to see
  • Connection lug 20 is launched.
  • the lug 18 is first placed with the connecting lug 20 on the stud bolt 10 by the stud 10 is inserted into the bore 22 through the terminal lug 20. Then it is passed through the bore 22 through the bore
  • Grounding rail 2 a certain instinct of the installer, because if the retaining nut 28 unintentionally slips out of the hand of the fitter and can be lost, the retaining nut 28 may cause problems such as short circuits or the like, especially in complex assembly environments, such as in a vehicle to be mounted when in corresponding electrical
  • the retaining nut 28 is pre-mounted on the contact shoe 18, wherein passage opening 34 through the nut body 32 and the bore 22 through the terminal lug 20 are radially aligned with each other so that they have the same axis of rotation 30.
  • the retaining nut 28 is mounted axially and radially on the connection lug 20, but can be rotated relative to the connection lug 20 about the axis of rotation 20.
  • Retaining nut 28 can solve the connection lug 20.
  • This radial and axial bearing is achieved by a wall 40 on the retaining nut 28, which releases the retaining nut 28 of the
  • the wall 40 projects axially from the nut support surface 38 of the
  • Nuts body 32 and can be radially in principle arbitrarily positioned between the internal thread 36 and a shell side 42 of the nut body 32.
  • the axially and radially mounted on the terminal lug 20 retaining nut 28 can be rotated, the wall 40 is formed into a sleeve which in a non-mounted on the terminal lug 20, as shown in Fig. 3, rotationally symmetrical about the Rotation axis 30 runs.
  • the idea of the axial and radial mounting of the retaining nut 28 on the connecting lug 20 can in principle also be implemented with other shapes for the wall 40.
  • the bore 22 into which the sleeve-shaped wall 30 is inserted has a notch 46 which is directed towards the support side 26 of the connection lug 26 and revolves around the axis of rotation 30.
  • the notch 46 is as
  • the notch depth 48 may be between 25% and 75%, preferably between 35% and 65%, more preferably between 45% and 55%
  • Flag strength 50 of the terminal lug 20 is located.
  • the notch depth 48 is executed with 50% of the flag strength 50 of the terminal lug.
  • a wall thickness 52 should be selected which is smaller than the notch depth 48, so that the wall 40 can be completely submerged in the notch 44.
  • wall thickness 52 for the wall 40 therefore, basically anything between 0% and 100% of the notch depth 48 comes into question.
  • a value should be selected in which the retaining nut 28 is held in the bore 22 with a sufficient axial tensile strength. Values of at least 10% of the notch depth 48 have proven necessary here.
  • Wall thickness 52 should be taken into account that the wall 40 will not be placed completely in the notch 44 to achieve a low cycle time in turning later into the notch 44 to be described later. Values of not more than 75% of the notch depth 48 have proven to be useful as the upper limit for the wall thickness 52. For the wall thickness 52, therefore, values between 10% and 75% of the notch depth 48.
  • Notch depth preferably between 20% and 65%, and more preferably between 30% and 55%.
  • the retaining nut 28 is inserted with the inserted into the bore 22 wall 40 in a holding device 56 which the Retaining nut 28 opposite to the support side 26 against the
  • Connection lug 20 presses. From the support side 26 ago
  • the stamp 58 has a
  • Stamp radius 60 which is smaller than a bore radius 62 of the
  • Stamp 58 cone-shaped.
  • the tapered punch end 66 kinks the wall 40 radially outward, thus supporting the holding nut 28 axially and radially on the terminal lug.
  • Knick 67 supports the retaining screw 28 axially to the bore 22nd
  • Holding device 56 are pressed. This can be achieved particularly preferably in that the stamp 58 is resiliently mounted when pressed against the holding device 56.
  • Wall projection 68 can be considered as Hypotenuse a right triangle, in which the Ankathete the necessary
  • the necessary sinking depth 70 must be smaller than a maximum sinking depth of the sine half of the opening angle 72 times the notch depth 48.
  • the necessary sinking depth 70 between 75% and 95%, preferably between 80% and 93 %, more preferably between 90% and 85% selected.
  • the limit value for the wall projection 68 is a radial length 74 of the notch 44.
  • the flag strength 50 can be chosen well below 3 mm in the present embodiment. It can be realized terminal lugs 20 with flag thicknesses 50 up to 0.8 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

La présente invention concerne un élément de contact électrique (4) permettant la liaison électrique et mécanique d'un câble (6) à un boulon d'entretoisement (10). L'élément de contact électrique comprend : une cosse de câble (18) avec un élément de maintien (24) pour la liaison électrique et mécanique du câble (6) et avec une barrette (20) contiguë à l'élément de maintien (24) au travers de laquelle est exécuté un perçage (22) pour l'introduction du boulon d'entretoisement (10), ainsi que - un écrou (28) déposé sur la barrette (20) de manière concentrique au perçage (22) et vissable sur le boulon d'entretoise (10), une paroi (40) menée à travers le perçage (22) faisant saillie de l'écrou (28). L'élément de contact électrique est caractérisé en ce que - le perçage (22) possède sur une face de la barrette (20) opposée à l'écrou (28) une encoche (44) dans laquelle la paroi (40) est rabattue (67).
PCT/EP2018/085683 2017-12-21 2018-12-18 Élément de contact électrique et procédé de fabrication WO2019121809A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017131016.9A DE102017131016A1 (de) 2017-12-21 2017-12-21 Automatisches Mutterverpressen an Blechteile
DE102017131016.9 2017-12-21

Publications (1)

Publication Number Publication Date
WO2019121809A1 true WO2019121809A1 (fr) 2019-06-27

Family

ID=64900916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/085683 WO2019121809A1 (fr) 2017-12-21 2018-12-18 Élément de contact électrique et procédé de fabrication

Country Status (2)

Country Link
DE (1) DE102017131016A1 (fr)
WO (1) WO2019121809A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020201510B4 (de) 2020-02-07 2021-10-07 Volkswagen Aktiengesellschaft Kabelschuh und Kabelschuhverbindung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1585576A (en) * 1978-02-08 1981-03-04 Plessey Co Ltd Electrical connector
EP1117151A1 (fr) 2000-01-17 2001-07-18 Harting Automotive GmbH & Co. KG Cosse de câble
DE20110512U1 (de) * 2001-06-27 2002-09-05 Grote & Hartmann GmbH & Co. KG, 42369 Wuppertal Anordnung aus Blech und unverlierbar mit diesem verbundener Mutter
DE102008051821A1 (de) * 2008-04-11 2009-10-29 Kerb-Konus-Vertriebs-Gmbh Nietteil in einer Formvertiefung
DE102014003415A1 (de) * 2014-03-13 2015-09-17 Auto-Kabel Management Gmbh Kabelanschlusselement sowie verfahren zur herstellung eines kabelanschlusselements

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB995840A (fr) * 1900-01-01
US2026757A (en) * 1934-07-24 1936-01-07 Elastic Stop Nut Corp Nut structure
DE102016119053A1 (de) * 2016-10-07 2018-04-12 Gustav Klauke Gmbh Verfahren zur Herstellung einer mit einem Kabelschuh drehverbundenen Mutter und mit einem Kabelschuh drehverbundene Mutter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1585576A (en) * 1978-02-08 1981-03-04 Plessey Co Ltd Electrical connector
EP1117151A1 (fr) 2000-01-17 2001-07-18 Harting Automotive GmbH & Co. KG Cosse de câble
DE20110512U1 (de) * 2001-06-27 2002-09-05 Grote & Hartmann GmbH & Co. KG, 42369 Wuppertal Anordnung aus Blech und unverlierbar mit diesem verbundener Mutter
DE102008051821A1 (de) * 2008-04-11 2009-10-29 Kerb-Konus-Vertriebs-Gmbh Nietteil in einer Formvertiefung
DE102014003415A1 (de) * 2014-03-13 2015-09-17 Auto-Kabel Management Gmbh Kabelanschlusselement sowie verfahren zur herstellung eines kabelanschlusselements

Also Published As

Publication number Publication date
DE102017131016A1 (de) 2019-06-27

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