EP3490069B1 - Connecteur de puissance - Google Patents

Connecteur de puissance Download PDF

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Publication number
EP3490069B1
EP3490069B1 EP18206923.7A EP18206923A EP3490069B1 EP 3490069 B1 EP3490069 B1 EP 3490069B1 EP 18206923 A EP18206923 A EP 18206923A EP 3490069 B1 EP3490069 B1 EP 3490069B1
Authority
EP
European Patent Office
Prior art keywords
electric cable
tabs
pair
terminal
support 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.)
Active
Application number
EP18206923.7A
Other languages
German (de)
English (en)
Other versions
EP3490069A1 (fr
Inventor
Alberto Folcarelli
Walter Bertoldo
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.)
A E C Srl
Original Assignee
A E C Srl
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Publication date
Application filed by A E C Srl filed Critical A E C Srl
Publication of EP3490069A1 publication Critical patent/EP3490069A1/fr
Application granted granted Critical
Publication of EP3490069B1 publication Critical patent/EP3490069B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • 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
    • H01R11/03—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 characterised by the relationship between the connecting locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/187—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 combined with soldering or welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/188—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 having an uneven wire-receiving surface to improve the contact
    • 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
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • 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
    • 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
    • H01R4/70—Insulation of 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
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding

Definitions

  • the present invention concerns in general achieving connections on electric power cables, in particular in the automotive sector.
  • a first solution used for copper conductors, provides that the cable is stripped at an intermediate point thereof, and that a terminal is clamped to the cable at such point to make an intermediate connection with a user device.
  • a second solution, used for aluminum conductors provides for the use of two single lengths of cable, each ending with a respective terminal. The terminals are then secured together to form a single connection to interface with an intermediate user device.
  • Such type of connection although relatively more complex than the previous one, is used for aluminum conductors because it facilitates sealing operations. It is in fact well known that aluminum conductors have a greater need for sealing than copper conductors because, when exposed to external agents, they corrode more easily and degrade in the interface area between the terminal and the cable.
  • US 2014/354043 A1 discloses a terminal for intermediate connection to electric cables, wherein the terminal comprises a cylindrical sleeve.
  • FR 3022406 A1 discloses a terminal for intermediate connection comprising a support part configured to receive an intermediate portion of the electric cable welded to the support part, wherein an insulating sleeve of the electric cable has been removed in the intermediate portion.
  • DE 19549174 A1 discloses a terminal comprising a pair of crimping tabs.
  • DE 202014003448 U1 discloses a terminal comprising a pair of crimping tabs.
  • An object of the present invention is to make available a solution that allows an intermediate connection to be obtained, in particular, on aluminum cables, in a relatively simple way, both for the formation of the connection and for the sealing thereof.
  • the object of the invention is a terminal for intermediate connection to an electric cable, comprising a body of conducting metal material having a connection part configured to be connected to a user device, and a support part configured to receive an intermediate portion of the electric cable welded to the support part, wherein an insulating sleeve of the electric cable has been removed in the intermediate portion, wherein the terminal comprises, at each of the longitudinally opposite ends of the support part, a pair of crimping tabs extending from the transversally opposite sides of the support part and capable of being clamped by deformation around an insulating sleeve of the electric cable adjacent to the intermediate portion of the electric cable, wherein each pair of tabs comprises at least one rib adapted to engage the insulating sleeve of the electric cable and extending transversely between the opposing free ends of the pair of tabs, wherein the opposite free ends of each pair of tabs have complementary profiles that interdigitate when the pair of tabs is tightened around the insulating sleeve of the
  • the crimping tabs in addition to serving as a support for mechanical stresses, have the function of deforming the insulation over substantially the entire transverse perimeter thereof in order to obtain a pre-seal before covering with heat-shrinkable material, co-molding or other sealing systems.
  • an intermediate connection terminal to an electric cable is shown, indicated collectively at 10.
  • intermediate connection means that the terminal is applied at an intermediate point along the extension of the electric cable, and not at the ends of the latter.
  • the terminal here described makes a connection with an electric cable at a point wherein the cable is continuous.
  • the terminal 10 comprises a body made of conducting metal material having a connection part 11 configured to be connected to a user device, and a support part 13 configured to receive an intermediate portion of the electric cable welded to the support part 13.
  • the connection part 11 has, for example, a hole, which is positioned on a threaded pin arranged on the user device, and on which a nut is screwed to secure the terminal 10 to the user device.
  • the support part 13 extends on one end of the connection part 11, forming an angle therewith, for example an angle of about 90°.
  • the support part 13 comprises a central support plate 14 and, on each of the longitudinally opposite ends of the support part 13, a pair of crimping tabs 15a, 15b; 16a, 16b extending from the transversally opposite sides of the support part 13.
  • a first pair of tabs, indicated at 15a and 15b is placed between the connection part 11 of the terminal 10 and the central support plate 14, while a second pair of tabs, indicated at 16a and 16b, is located on the opposite end of the support part 13, far from the connection part 11.
  • the opposite free ends 15a' and 15b', as well as 16a' and 16b' of each pair of tabs 15a, 15b and 16a, 16b have shaped profiles, for example, toothed, complementary to each other.
  • Each pair of tabs comprises at least one rib 17, 18 (in the example shown, two ribs) obtained on an inner surface of the tabs 15a, 15b and 16a, 16b and a portion of the support part 13 which interconnects between the tabs 15a, 15b and 16a, 16b of each pair.
  • Each rib 17 and 18 protrudes towards the "inside" of the terminal 10, i.e. on the side of the support part 13 intended to receive the electric cable.
  • Each rib 17 and 18 extends transversely between the opposite free ends 15a', 15b' and 16a', 16b' of each pair of tabs 15a, 15b and 16a, 16b, so as to cover the entire transversal extension of the tabs, or at least the major part thereof.
  • the terminal 10 is coupled to an electric cable 20, in particular, a cable comprising a conductor 21, in particular, made of aluminum, and an insulating sleeve 23 arranged around the conductor 21.
  • an electric cable 20 in particular, a cable comprising a conductor 21, in particular, made of aluminum, and an insulating sleeve 23 arranged around the conductor 21.
  • the insulating sleeve 23 is first removed so as to leave the conductor 21 exposed.
  • the electric cable 20 thus prepared is coupled to the terminal 10 so as to place the sleeveless intermediate portion of the cable 20 in contact with the support part 13 of the terminal 10, and each of the longitudinally opposite parts of the insulating sleeve 23 adjacent to such intermediate part arranged within a respective pair of tabs 15a, 15b and 16a, 16b.
  • the intermediate part of the electric cable 10 is then welded to the support plate 14, in particular, by means of friction or ultrasonic welding.
  • each pair of tabs 15a, 15b and 16a, 16b thus encircles the entire perimeter of the insulated sleeve 23, tightening and deforming the latter due to the ribs 17 and 18.
  • the complementary profiles of the opposite free ends 15a', 15b' and 16a', 16b' interdigitate with each other.
  • the welding and crimping of the tabs may be carried out by the same tool or by different tools, at the same time or successively in time.
  • a sealing coating 30 is applied to the terminal 10 with the cable 20 to cover the entire support part 13 of the terminal 10 with the intermediate portion of the electric cable 20, as well as each pair of crimping tabs 15a, 15b and 16a, 16b clamped on the insulating sleeve 23 of the cable 20.
  • the sealing may be obtained by conventional methods, for example, the application of a sleeve of heat-shrinkable material, or the co-molding of a plastic material.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Claims (5)

  1. Connecteur (10) pour un raccordement intermédiaire à un câble électrique (20), comprenant un corps de matériau métallique conducteur ayant une partie de raccordement (11) configurée pour être raccordée à un dispositif utilisateur, et une partie de support (13) configurée pour recevoir une portion intermédiaire (21) du câble électrique (20) soudée à la partie de support (13), dans lequel une gaine isolante (23) du câble électrique (20) a été retirée dans la portion intermédiaire (21),
    dans lequel ledit connecteur comprend, sur chacune d'extrémités longitudinalement opposées de la partie de support (13), une paire de languettes de sertissage (15a, 15b ; 16a, 16b) s'étendant à partir de côtés transversalement opposés de la partie de support (13) et susceptibles d'être serrées par déformation autour d'une gaine isolante (23) du câble électrique (20) adjacente à la portion intermédiaire (21) du câble électrique (20), dans lequel chaque paire de languettes (15a, 15b ; 16a, 16b) comprend au moins une nervure (17, 18) conçue pour venir en prise avec la gaine isolante (23) du câble électrique (20) et s'étendant transversalement entre les extrémités libres opposées (15a', 15b' ; 16a', 16b') de la paire de languettes (15a, 15b ; 16a, 16b'),
    dans lequel les extrémités libres opposées (15a', 15b' ; 16a', 16b') de chaque paire de languettes (15a, 15b ; 16a, 16b) possèdent des profils complémentaires qui s'entrelacent lorsque la paire de languettes (15a, 15b ; 16a, 16b) est serrée autour de la gaine isolante (23) du câble électrique (20).
  2. Procédé pour former un raccordement intermédiaire à un câble électrique (20) au moyen d'un connecteur (10), le connecteur comprenant un corps de matériau métallique conducteur ayant une partie de raccordement (11) configurée pour être raccordée à un dispositif utilisateur, et une partie de support (13) ayant, sur chacune d'extrémités longitudinalement opposées, une paire de languettes de sertissage (15a, 15b ; 16a, 16b) s'étendant à partir de côtés transversalement opposés de la partie de support (13), dans lequel chaque paire de languettes (15a, 15b ; 16a, 16b) comprend au moins une nervure (17, 18) s'étendant transversalement entre les extrémités libres opposées (15a', 15b' ; 16a', 16b') de la paire de languettes (15a, 15b ; 16a, 16b), les extrémités libres opposées (15a', 15b' ; 16a', 16b') de chaque paire de languettes (15a, 15b ; 16a, 16b) ayant des profils complémentaires,
    dans lequel le procédé comprend les étapes de :
    retrait de la gaine isolante (23) du câble électrique (20) au niveau d'une portion intermédiaire (21) de ce dernier,
    placement de ladite portion intermédiaire (21) du câble électrique (20) en contact avec la partie de support (13) du connecteur (10),
    soudage de la portion intermédiaire (21) du câble électrique (20) à la partie de support (13) du connecteur (10), et
    serrage de chaque paire de languettes de sertissage (15a, 15b ; 16a, 16b) autour de la gaine isolante (23) du câble électrique (20) à proximité de la portion intermédiaire (21) du câble électrique (20), d'une manière telle que les nervures respectives (17, 18) déforment la gaine isolante (23) et d'une manière telle que les profils complémentaires des extrémités libres opposées (15a', 15b' ; 16a', 16b') de chaque paire de languettes (15a, 15b ; 16a, 16b) s'entrelacent.
  3. Procédé selon la revendication 2, comprenant en outre
    l'application d'un revêtement d'étanchéité (30) autour du connecteur (10) afin de recouvrir la partie de support (13) du connecteur (10) conjointement avec la portion intermédiaire (21) du câble électrique (20) et chaque paire de languettes de sertissage (15a, 15b ; 16a, 16b).
  4. Procédé selon la revendication 2 ou 3, dans lequel le câble électrique (20) est un câble conducteur en aluminium.
  5. Procédé selon l'une quelconque des revendications 2 à 4, dans lequel la portion intermédiaire (21) du câble électrique (20) est soudée par ultrasons à la partie de support (13) du connecteur (10).
EP18206923.7A 2017-11-23 2018-11-19 Connecteur de puissance Active EP3490069B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201700134205 2017-11-23

Publications (2)

Publication Number Publication Date
EP3490069A1 EP3490069A1 (fr) 2019-05-29
EP3490069B1 true EP3490069B1 (fr) 2020-07-15

Family

ID=61527393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18206923.7A Active EP3490069B1 (fr) 2017-11-23 2018-11-19 Connecteur de puissance

Country Status (1)

Country Link
EP (1) EP3490069B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19549174A1 (de) * 1995-10-28 1997-07-03 Bosch Gmbh Robert Kontaktelement mit Crimpabschnitt
EP2362491B1 (fr) * 2010-02-26 2017-10-04 Delphi Technologies, Inc. Procédé de connexion d'une conduite électrique avec un élément de raccordement électrique
FR2986114B1 (fr) * 2012-01-20 2015-02-27 Labinal Procede de raccordement, raccord de derivation equipotentiel et reseau de retour courant a liaison equipotentielle dans une architecture non conductrice
DE202014003448U1 (de) * 2014-04-23 2014-05-26 Nexans Kontaktelement zum elektrisch leitenden Anschließen eines elektrischen Leiters
FR3022406B1 (fr) * 2014-06-16 2016-07-15 Leoni Wiring Systems France Organe de raccordement electrique pour circuit electrique de vehicule
FR3040243B1 (fr) * 2015-08-20 2017-10-06 Leoni Wiring Systems France Dispositif de connexion electrique ameliore

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
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