EP3878053A1 - Procédé pour la fabrication d'une pièce de raccordement pour installations électriques, pièce de raccordement ainsi que connexion d'une pièce de raccordement avec un câble - Google Patents

Procédé pour la fabrication d'une pièce de raccordement pour installations électriques, pièce de raccordement ainsi que connexion d'une pièce de raccordement avec un câble

Info

Publication number
EP3878053A1
EP3878053A1 EP19789891.9A EP19789891A EP3878053A1 EP 3878053 A1 EP3878053 A1 EP 3878053A1 EP 19789891 A EP19789891 A EP 19789891A EP 3878053 A1 EP3878053 A1 EP 3878053A1
Authority
EP
European Patent Office
Prior art keywords
end region
cable
tab
connection
connection part
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
EP19789891.9A
Other languages
German (de)
English (en)
Inventor
Matthias RUDA
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.)
Auto Kabel Management GmbH
Original Assignee
Auto Kabel Management GmbH
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 Auto Kabel Management GmbH filed Critical Auto Kabel Management GmbH
Publication of EP3878053A1 publication Critical patent/EP3878053A1/fr
Pending legal-status Critical Current

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
    • 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
    • H01R4/625—Soldered or welded connections
    • 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
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0249—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for simultaneous welding or soldering of a plurality of wires to contact elements
    • 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 subject matter relates to a method for producing a connection part for electrical systems, in particular for an on-board network of a motor vehicle.
  • the subject also relates to a connector for electrical systems and the connection of a connector with a cable formed from a plurality of wires or strands.
  • connection parts not only have to be able to be connected particularly easily to the current-carrying lines or cables of a motor vehicle, but should also have good electrical conductivity and the lowest possible weight.
  • manufacturing process of the connection parts should be inexpensive and reliable.
  • small cable cross-sections are preferably used and therefore also connecting parts with a small cross-section and a resulting small size are required.
  • the manufacturing process is disadvantageous in that the stretching - in particular in the case of small connecting parts - does not provide a sufficiently thick wall of the connecting part, as a result of which a welded connection with an electrical conductor or cable cannot be reliably established.
  • the object of the object was to specify a method for producing a connection part, a connection part and a connection of a connection part with a cable formed from a plurality of wires or strands, with which small geometries can be produced reliably and inexpensively, and a reliable connection with a Cable is made possible.
  • End region has a floor and the second end region is open
  • the deep-drawing process enables a sleeve to be process-reliable with only a small amount
  • the bottom of the first end region can advantageously be provided by means of a
  • the weld seam can be connected both mechanically and electrically using an electrical cable. It is particularly advantageous if the weld seam is a friction weld seam, that is to say a weld seam that was created by means of a friction weld.
  • connection part is preferably configured in one piece. This leads to an increased stability of the connection part and also to a low level
  • the second end region of the sleeve is reshaped, preferably pressed, in such a way that the inner wall sides of the tab at least partially abut one another and the cross section of the tab is essentially elliptical, a wide plane defining the maximum cross-sectional width of the tab.
  • the wide plane is preferably formed by the at least partially abutting inner wall sides of the tab.
  • connection part for example with an electrical cable or with a
  • the through hole is made substantially centrally in the broad plane of the tab and that the through hole is preferably essentially circular.
  • the tab in particular after the through-hole has been made, is deformed one or more times, preferably bent.
  • Deformation of the tab can be carried out simultaneously in a combined bending / punching process.
  • the connector By deforming, in particular by bending, the tab, the connector can be used in various installation scenarios or
  • the tab is deformed, in particular bent, about an axis lying in the broad plane and essentially running in the transverse direction of the connecting part. In this way it can be achieved that the through hole is provided in the position planned in terms of construction.
  • the tab is bent several times, the respective bending axes, that is to say those axes about which the tab is bent, essentially parallel or transverse to the one lying in the broad plane
  • Axis extending essentially in the transverse direction of the connecting part are formed. Such bending processes make it possible to provide variable fastening options for the connecting part, since the position of the through hole can be adapted to different installation scenarios.
  • the sleeve has a wall thickness of at least 1 mm after the deep-drawing. This can ensure that the wall thickness of the floor after further processing of the sleeve has a sufficient thickness so that it can be reliably connected to a cable by means of a welded connection, in particular with a friction welded connection.
  • connection part for electrical systems, in particular for an electrical system of a motor vehicle, with a first end region and with a second end region, the connection part being formed in one piece, the first end region being formed as a closed, U-shaped tube section, the second end region is formed as a tab with an essentially elliptical cross-section and wherein the tab has a through hole.
  • the closed, U-shaped pipe section is preferably composed of a substantially circular wall and a bottom, which is also essentially circular, delimiting the wall on the underside.
  • Outer diameter of the first end region is larger than the outer diameter of the second end region. This is because the outer diameter of the first end region generally corresponds to the outer diameter of a cable to be connected. Thus, a smaller outer diameter of the second
  • a transition region is arranged between the first end region and the second end region and that the transition region tapers substantially starting from the first end region in the direction of the second end region. It is preferred that the
  • Transition area starting from the first end area in the direction of the second Tapered end area is also conceivable, for example a curved taper.
  • connection part With regard to a simple and process-reliable production of the connection part, it is preferred that the first end region, the transition region and at least part of the second end region along the longitudinal axis of the connection part are designed to be essentially mirror-symmetrical. It is preferred that the entire second end region, with the exception of the deformed part of the tab, also
  • the first end region has an outer diameter of at most 25 mm, in particular of at most 8 mm.
  • Such outer diameters can be realized in particular by deep drawing a sheet metal blank with only small tolerances, so that small ones
  • Connection parts can be manufactured that are too small
  • the connecting part is made of aluminum, copper, an aluminum alloy or a copper alloy.
  • Tubular cable lug is.
  • Tubular cable lugs are particularly in demand as mass-produced goods.
  • connection of the aforementioned connection part to a cable formed from a plurality of wires or strands, the cable being enclosed by a support sleeve for receiving an end face of the cable in such a way that the wires or strands of the cable are held in the support sleeve and wherein the end face of the first end region of the connecting part is welded to the end face of the cable and / or the end face of the support sleeve by means of a weld seam.
  • Soil thickness can be provided for a reliable white bond. Due to the closed design of the bottom of the connecting part, that is
  • Liquid for example due to capillary forces, can be reliably prevented in the cable.
  • the weld seam is a friction weld seam, that is to say by means of a
  • connection part and the end face of the cable and / or the end face of the support sleeve is formed.
  • the connecting part is preferably rotated during the welding process.
  • the friction welding connection of the end face of the first end region exists both with the end face of the cable and with the end face of the support sleeve.
  • the friction weld can be a rotary friction weld.
  • a further embodiment is characterized in that the end face of the cable is essentially flush with the end face of the support sleeve.
  • the end face of the cable is preferably formed by the ends of the wires or strands. This enables a friction weld connection to be reliably established both with the cable and with the support sleeve.
  • the cable is stripped in the area of the support sleeve. This enables a reliable electrical connection between the cable and the support sleeve.
  • La is a side view of an embodiment of a sleeve during an objective process after deep drawing in section
  • Fig. Lb the embodiment of the sleeve shown in Fig. La after deep drawing in a front view
  • Fig. 2a is a side view of that shown in Figs. La and lb
  • FIG. 2b the embodiment of the sleeve shown in Fig. 2a after
  • connection part in question shows a first process step of joining an exemplary embodiment of the connection part in question to a cable by means of a rotary friction welding method in a side view
  • FIG. 4b shows a second process step of the joining shown in FIG. 4a
  • FIG. 4c shows a third process step of the joining shown in FIGS. 4a and 4b
  • Fig. 5a shows an embodiment of the connector in a
  • 5b shows the embodiment of the connecting part shown in FIG. 5a in a plan view
  • 6a shows a further embodiment of the connection part in question in a side view
  • FIG. 6b shows the exemplary embodiment of the connecting part shown in FIG. 6a
  • connection part 7a shows a further embodiment of the connection part in question in a side view
  • FIG. 7b shows a top view of the exemplary embodiment of the connecting part shown in FIG. 7a
  • Fig. 8a shows another embodiment of the connector in a side view
  • Fig. 8b the embodiment of the connector shown in Fig. 8a in a plan view.
  • Fig. La shows a side view of an embodiment of a sleeve 2 during a subject process after deep drawing.
  • the sleeve 2 is tubular and has an essentially circular wall 4. This can be seen in the front view of the sleeve 2 shown in FIG. 1b.
  • the sleeve comprises a first end region 6, which has a bottom 8 and a second end region 10, which is open.
  • the sleeve 2 has an essentially U-shaped cross-sectional profile and is preferably made of copper, Aluminum or alloys thereof.
  • the wall thickness of the sleeve 2 is preferably at least 1 mm.
  • Fig. 2a is a side view of that shown in Figs. La and Ib
  • Embodiment of the sleeve 2 shown after pressing. It can be seen that the inner walls 12 or the inner lateral surface of the wall 4 essentially abut one another in the second end region 10. As a result of the pressing, a tab 14 with an essentially has in the second end region 10
  • the first end region 6 tapers essentially conically by means of a transition region 16 and then merges into the second end region 10 or the tab 14.
  • Transition area 16 and first end area 6 enclose an internal cavity 18. 2b that the outer diameter di of the first end region 6 is larger than the outer diameter d2 of the second
  • the outer diameter di is preferably at most 10 mm, in particular at most 8 mm.
  • FIG. 3a shows a top view of the previously illustrated embodiment of the sleeve 2 after the insertion of a through hole 20.
  • the through hole 20 is made centrally in a wide plane E of the tab 14.
  • the broad plane E of the tab 14 is shown in FIG. 3b and runs along the maximum cross-sectional width of the tab 14.
  • the longitudinal axis X of the connecting part 22 preferably runs centrally through the through hole 20.
  • the cable 24 is preferably a battery cable of a motor vehicle, in particular for connecting a battery to a starter, a generator or else to another electrical line of a motor vehicle.
  • the cable 24 is composed of several strands or wires 26, which are sheathed by an insulation 28 are. In the end region of the cable 24, the insulation 26 is removed, so that the wires 26 are exposed and are surrounded by a support sleeve 30.
  • the support sleeve 30 is preferably round and made of aluminum, copper or alloys thereof. It can be seen that the end face 30a of the support sleeve 30 is flush with the end face 24a of the cable 24
  • the support sleeve 30 is preferably pressed so that the wires 26 lie closely together within the support sleeve 30.
  • the connecting part 22 is set in rotation, whereas the cable 24 is arranged in a holder (not shown) in a rotationally fixed manner
  • connection part 22 is brought into contact with the cable 24 in such a way that the end face 22a of the connection part 22 comes into contact with the end face 30a of the support sleeve 30 and the end face 24a of the cable 24 moved in the direction of arrow Y towards the connector 22.
  • connection part 22 Due to the rotation of the connection part 22, friction occurs between the connection part 22 and the cable 24 or the support sleeve 30, whereby the materials in contact with one another are heated and plasticized.
  • This causes the connection part 22 to be integrally connected by means of a friction weld 32 with the cable 24 and welded to the support sleeve 30
  • a friction weld 32 is shown
  • connection part 22 shown in FIGS. 5a and 5b has not been subjected to any bending process. It essentially corresponds to that in FIGS. 3a ; 3b and FIGS. 4a to 4c, the connection part 22 shown.
  • the connecting part 22 or the tab 14 of the connecting part 22 shown in FIGS. 6a and 6b has been bent around two bending axes Bi and B 2 . It can be seen that the bending axes Bi and B 2 run in the transverse direction of the connecting part 22, the bending axis Bi lying in the plane E shown in FIG. 3b and the bending axis B 2 extending parallel to the bending axis Bi.
  • the double bending of the tab 14 enables an offset screwing surface for the through hole 20, the axis running through the through hole 20 continuing to run in the transverse direction of the connecting part 22.
  • the exemplary embodiment of the connecting part 22 has been bent essentially by 90 ° about a bending axis B 3 , so that the axis running through the through hole 20 extends essentially parallel to the longitudinal axis X of the connecting part 22.
  • connection part 22 shows a connecting part 22, the tab 14 of which has been bent around a total of three bending axes B 4 , Bs and B 6 .
  • the tab 14 can be adapted to special structural conditions. It can be seen that the axis running through the through hole 20 runs obliquely to the longitudinal and transverse axes of the connection part 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

L'invention concerne un procédé pour la fabrication d'une pièce de raccordement (22) pour installations électriques, en particulier pour un réseau de bord d'un véhicule automobile, comprenant : l'emboutissage d'un flan de tôle pour la fabrication d'une douille (2) comprenant une première zone d'extrémité (6) et une deuxième zone d'extrémité (10), la première zone d'extrémité (6) comprenant un fond (8) et la deuxième zone d'extrémité (10) étant ouverte, le formage, en particulier la compression, de la deuxième zone d'extrémité (10) pour la fabrication d'une languette (14) et l'introduction d'un trou de passage (20) dans la languette (14). L'invention concerne également une pièce de raccordement (22) pour installations électriques, en particulier pour un réseau de bord d'un véhicule automobile ainsi qu'une connexion d'une pièce de raccordement (22) selon l'une quelconque des revendications précédentes avec un câble (24) formé de plusieurs fils (26) ou torons.
EP19789891.9A 2018-11-07 2019-10-10 Procédé pour la fabrication d'une pièce de raccordement pour installations électriques, pièce de raccordement ainsi que connexion d'une pièce de raccordement avec un câble Pending EP3878053A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018127729.6A DE102018127729A1 (de) 2018-11-07 2018-11-07 Verfahren zur Herstellung eines Anschlussteils für elektrische Anlagen, Anschlussteil sowie Verbindung eines Anschlussteils mit einem Kabel
PCT/EP2019/077434 WO2020094327A1 (fr) 2018-11-07 2019-10-10 Procédé pour la fabrication d'une pièce de raccordement pour installations électriques, pièce de raccordement ainsi que connexion d'une pièce de raccordement avec un câble

Publications (1)

Publication Number Publication Date
EP3878053A1 true EP3878053A1 (fr) 2021-09-15

Family

ID=68289924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19789891.9A Pending EP3878053A1 (fr) 2018-11-07 2019-10-10 Procédé pour la fabrication d'une pièce de raccordement pour installations électriques, pièce de raccordement ainsi que connexion d'une pièce de raccordement avec un câble

Country Status (6)

Country Link
US (1) US11916321B2 (fr)
EP (1) EP3878053A1 (fr)
CN (1) CN113228420A (fr)
DE (1) DE102018127729A1 (fr)
MX (1) MX2021005324A (fr)
WO (1) WO2020094327A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022109502B4 (de) * 2022-04-20 2023-11-09 Auto-Kabel Management Gmbh Bimetallischer Ladekabelsteckverbinder, Verfahren zur Herstellung eines Ladekabelsteckverbinders, Ladebuchse mit einem Ladekabelsteckverbinder sowie System mit einem Ladekabelsteckverbinder

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Also Published As

Publication number Publication date
US11916321B2 (en) 2024-02-27
DE102018127729A1 (de) 2020-05-07
WO2020094327A1 (fr) 2020-05-14
CN113228420A (zh) 2021-08-06
US20210408701A1 (en) 2021-12-30
MX2021005324A (es) 2021-08-11

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