EP0608836A2 - Elektrische Buchse mit verbesserten Mitteln zur Verbindung von zwei elektrisch leitenden Kabeln und dessen Herstellungsverfahren - Google Patents

Elektrische Buchse mit verbesserten Mitteln zur Verbindung von zwei elektrisch leitenden Kabeln und dessen Herstellungsverfahren Download PDF

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Publication number
EP0608836A2
EP0608836A2 EP94101064A EP94101064A EP0608836A2 EP 0608836 A2 EP0608836 A2 EP 0608836A2 EP 94101064 A EP94101064 A EP 94101064A EP 94101064 A EP94101064 A EP 94101064A EP 0608836 A2 EP0608836 A2 EP 0608836A2
Authority
EP
European Patent Office
Prior art keywords
electrical
terminal
section
receptacle
wire connecting
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.)
Ceased
Application number
EP94101064A
Other languages
English (en)
French (fr)
Other versions
EP0608836A3 (en
Inventor
Friedrich Josef Alois Kourimsky
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of EP0608836A2 publication Critical patent/EP0608836A2/de
Publication of EP0608836A3 publication Critical patent/EP0608836A3/en
Ceased legal-status Critical Current

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/02—Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter
    • 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
    • H01R4/183—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 for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—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 for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—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 for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion

Definitions

  • This invention relates to an electrical terminal receptacle and a method for manufacturing it, and in particular, a receptacle for accommodating a fuse, according to the preamble of claims 1 and 7, respectively.
  • the receptacles are commonly stamped and formed out of a sheet of thin conducting material comprising a receptacle shell into which are bent elongated resilient tongue contacts between which the tab is pushed and contact is made, having also locking lances that are stamped out of the receptacle shell to hold it within an associated electrical connector housing, and a wire connection section commonly having a crimp barrel to which the stranded conductors of the electrical cables are crimped.
  • the receptacle that connects to the output tab of the fuse sometimes has more than one electric cable attached to it, the cables are placed into the same crimp barrel and crimped together. It should also be appreciated that the conducting cables leading to various electrical appliances often have different diameters because the electrical current requirements of the appliances are different.
  • Crimping of the wires is a preferred method because strands of the electrical conductor are crushed together therefore providing good electrical conduction therebetween, and additionally providing a good grip on the wire.
  • One of the problems associated to the presently designed wire connection sections is that they do not reliably connect more than one electrical conducting wire because their design is aimed towards receiving a single generally cylindrical often multi-stranded wire. If two stranded wire connectors are placed in the same crimp barrel and crimped together, for example, the crimping may result in crushing one of the stranded wires very hard and crushing of the other stranded wire only loosely, the loose wire not only making bad electrical contact with the receptacle but also risking extraction out of the barrel by an external pulling force on the wire. The above is especially true and difficult to control if the stranded wires are of different sizes, which is, as mentioned previously, a likely occurrence when these electrical cables lead to different electrical appliances.
  • an object of the invention is therefore to provide an electrical terminal providing a reliable means to attach more than one electrical conducting wire thereto.
  • Another object of this invention in conjunction with the above mentioned object, is to provide an electrical terminal that can be manufactured simply in an automated process.
  • the present invention provides an electrical terminal as defined in claim 1 and a method as defined in claim 7. Preferred embodiments are defined in the dependent claims.
  • an electrical terminal having an electrical conductor attachment section and a contacting section such that the terminal is stamped and formed out of a sheet of conducting material, whereby the conductor attachment section comprises more than one electrical wire connecting section to which associated electrical conducting cables may be electrically connected.
  • an electrical tab receptacle terminal is shown generally at 2, comprising a longitudinal axis 3, a conductor attachment section 6, a contacting section 4, a locking section 8, and two electrical conducting cables 9 and 10.
  • a box-shaped shell 14 of the receptacle 2 joins the conductor attachment section 6 to the contacting section 4, and is bent from the base 14' of Figure 2 into its box shape, having two opposing side walls 15,16 attached to adjacent opposing walls 17,18.
  • the adjacent wall 17 is split into two half walls 17',17''.
  • stamped out locking lances 32,33 as shown in Figure 1 are attached at one of the ends to the side walls 15,16 respectively departing rearwardly outwards therefrom, the locking lances serving to retain the receptacle by abutting against a shoulder within a terminal receiving cavity of an associated housing (not shown).
  • the conductor attachment section 6 has two wire connection sections 5,7, comprising respectively a first crimp barrel 36 attached to an associated strain relief section 40 and a second crimp barrel 38 attached to an associated strain relief section 42, the wire connection sections 5,7 attached to a bottom edge 21 of the base 14'.
  • a partly manufactured receptacle 2' is shown still attached to a carrier strip 48, the carrier strip serving to transport the strip of metal from which the receptacle 2 is stamped and formed during its manufacturing process, whereby the hole 49 serves to locate the strip accurately, as well as to feed the strip in the stamping and forming machines.
  • Tabs 50 of the strain relief section 40 wrap around the insulation of an electrical conductor 10 so as to grip it firmly, as shown in Figure 1 and side walls 52 of the crimp barrel 36 crimp onto the conductors 55 of the electrical conductor 10.
  • the crimp barrel 36 has a size designed to suitably match that of the electrical conductor 55.
  • the crimp barrel 38 and its associated strain relief section 42 is attached to an electrical conductor 9.
  • the electrical conducting cable 9 and the electric conducting cable 10 lead to different electrical appliances which define different electrical current needs, the cable 9 therefore carrying a different level of electric current to the cable 10.
  • the electrical current carrying capabilities of an electrical conductor is in part determined by the cross sectional area of the conductor one generally implements a conductor with larger cross sectional area when the amplitude of electrical current to be carried is greater.
  • the crimp barrel 36 and its associated strain relief section 40 is matched to crimp on the cable 9 and the crimp barrel 38 and its associated strain relief section 42 is matched to crimp on the cable 10, which may be a different size to that of the cable 9.
  • perforations 62 shown in Figure 2 extend at a distance D parallel to the longitudinal axis 3, from the top edge 20 of the base 14' to the bottom edge 21, thereby defining two parallel bending lines 64,66 that separates respectively side wall 15 to adjacent wall 18 respectively adjacent wall 18 to side wall 16 of the shell 14 of the receptacle 2.
  • the perforations 62 not only facilitate bending of the walls 15,16 around their respective bending axes 64,66 but also ensure that the deformation occurs therearound; deformation preferentially occurring in the most supple regions.
  • the receptacle 2 shown in Figure 1 is formed by a series of manufacturing steps illustrated in Figures 4,5 and 6 from the partly manufactured receptacle 2' shown in Figure 2, whereby, as shown in Figure 4, the partly manufactured receptacle 2' is placed on a die 70 (partly shown) with the adjacent half walls 17',17'' facing upwards away from the die.
  • a cavity 76 in the die 70 is situated under the end wall 18 of the base 14', spanning from one bending line 64 to the other bending line 66, upper edges 78 of the cavity 76 having rounded corners to facilitate pivoting of the side walls 15,16 of the base 14' around the bending lines 64,66 respectively.
  • a ram 80 is moved vertically down towards the die as shown by the arrow A in Figure 4, and stamps the end wall 18 between the bending lines 64,66 into the cavity 76 of the die 70, whereby the side walls 15,16 are forced to pivot around the upper edges 78 of the cavity 76, thereby bending the side walls 15,16 around the bending lines 64,66; perforations 62 situated along the bending lines 64,66 facilitating the bending therearound.
  • the ram 80 is pressing the end wall 18 onto the floor 77 of the die cavity 76 and the side walls 15,16 are only partially bent, extending obliquely away from the end wall such that the ram 80 can be retracted vertically past free edges 90,92 of the half walls 17',17'' respectively and also avoiding interference with the contacting tongues 22,23 as shown in Figure 5.
  • the ram 80 is retracted past the free ends 90,92 of the half walls 17',17'' and opposing crimp dies 81,82 are moved horizontally together, pushing corners 94,96 of the side wall 17',17'' respectively, causing the side walls 15,16 to pivot about their respective bending lines 64,66 thereby approaching the free edges 90,92 of the half walls 17',17'' respectively until they meet as shown in Figure 6.
  • a jigsaw interconnection 98 As illustrated in Figure 3, is foreseen.
  • the jigsaw interconnection 98 consists of a T-shaped tab 96 attached to the free edge 92 of the wall 17'' and a corresponding T-shaped hole 94 departing from the free edge 90 inwards of the wall 17', whereby when the free edges 90,92 have met, the tab 96 is located within the hole 94 thereby preventing separation thereof.
  • the terminal 2 as described herein is only representative of the preferred embodiment of the invention and should not be limiting to the claimed invention. More specifically: the wire connecting sections 5,7 could be of the insulation displacement type as opposed to crimp barrels 36,38; the number of wire connecting sections 5,7 could be increased by lengthening the side walls 15,16 and placing additional wire connecting sections therealong; and the contacting tongues could be stamped and formed directly from the side walls 15,16 instead of feeding off the top edge 20.
  • the electrical terminal 2 could also imagine the electrical terminal 2 to be a male electrical terminal tab insertable into a female electrical terminal receptacle (such as described in the preferred embodiment), by for example forming the contacting tongues into a tab.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP94101064A 1993-01-26 1994-01-25 Electrical terminal receptacle with improved means for connecting two electrical conducting cables and a method for manufacturing it. Ceased EP0608836A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939301465A GB9301465D0 (en) 1993-01-26 1993-01-26 Electrical terminal receptacle with improved means for connecting two electrical conducting tables and a method for manufacturing it
GB9301465 1993-07-13

Publications (2)

Publication Number Publication Date
EP0608836A2 true EP0608836A2 (de) 1994-08-03
EP0608836A3 EP0608836A3 (en) 1996-03-06

Family

ID=10729311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101064A Ceased EP0608836A3 (en) 1993-01-26 1994-01-25 Electrical terminal receptacle with improved means for connecting two electrical conducting cables and a method for manufacturing it.

Country Status (2)

Country Link
EP (1) EP0608836A3 (de)
GB (1) GB9301465D0 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013082A2 (en) * 1994-10-24 1996-05-02 The Whitaker Corporation Electrical contact
WO1996033506A2 (en) * 1995-04-20 1996-10-24 Littelfuse Inc One-piece female blade fuse with housing and improvements thereof
EP1294056A2 (de) * 2001-09-07 2003-03-19 Sumitomo Wiring Systems, Ltd. Anschlusskontakt, damit ausgestatteter Steckverbinder und Herstellungsverfahren des Anschlusskontaktes
US8530717B2 (en) 2008-07-21 2013-09-10 Basf Se Process for the industrial isolation of propene

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116524A (en) * 1977-06-29 1978-09-26 Illinois Tool Works Terminal bridging assembly
EP0142255A1 (de) * 1983-10-31 1985-05-22 AMP INCORPORATED (a New Jersey corporation) Verbindungsklemme mit Schnappverschluss
EP0416834A1 (de) * 1989-09-04 1991-03-13 Sumitomo Wiring Systems, Ltd. Steckvorrichtung für Einspritzdüsen für eine Brennkraftmaschine und dabei verwendetes Kontaktelement
EP0429177A1 (de) * 1989-11-21 1991-05-29 The Whitaker Corporation Flachsteckhülse mit niedriger Einfügungskraft
US5098320A (en) * 1990-11-29 1992-03-24 Molex Incorporated Shrouded electrical connector
GB2250645A (en) * 1990-12-06 1992-06-10 Amp Inc An electrical connector and an electrical terminal therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116524A (en) * 1977-06-29 1978-09-26 Illinois Tool Works Terminal bridging assembly
EP0142255A1 (de) * 1983-10-31 1985-05-22 AMP INCORPORATED (a New Jersey corporation) Verbindungsklemme mit Schnappverschluss
EP0416834A1 (de) * 1989-09-04 1991-03-13 Sumitomo Wiring Systems, Ltd. Steckvorrichtung für Einspritzdüsen für eine Brennkraftmaschine und dabei verwendetes Kontaktelement
EP0429177A1 (de) * 1989-11-21 1991-05-29 The Whitaker Corporation Flachsteckhülse mit niedriger Einfügungskraft
US5098320A (en) * 1990-11-29 1992-03-24 Molex Incorporated Shrouded electrical connector
GB2250645A (en) * 1990-12-06 1992-06-10 Amp Inc An electrical connector and an electrical terminal therefor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013082A2 (en) * 1994-10-24 1996-05-02 The Whitaker Corporation Electrical contact
WO1996013082A3 (en) * 1994-10-24 1996-08-08 Whitaker Corp Electrical contact
US5879205A (en) * 1994-10-24 1999-03-09 The Whitaker Corporation Stamped and formed electrical contact
WO1996033506A2 (en) * 1995-04-20 1996-10-24 Littelfuse Inc One-piece female blade fuse with housing and improvements thereof
WO1996033506A3 (en) * 1995-04-20 1997-01-16 Littelfuse, Inc. One-piece female blade fuse with housing and improvements thereof
EP1294056A2 (de) * 2001-09-07 2003-03-19 Sumitomo Wiring Systems, Ltd. Anschlusskontakt, damit ausgestatteter Steckverbinder und Herstellungsverfahren des Anschlusskontaktes
EP1294056B1 (de) * 2001-09-07 2007-02-14 Sumitomo Wiring Systems, Ltd. Anschlusskontakt, damit ausgestatteter Steckverbinder und Herstellungsverfahren des Anschlusskontaktes
US8530717B2 (en) 2008-07-21 2013-09-10 Basf Se Process for the industrial isolation of propene

Also Published As

Publication number Publication date
EP0608836A3 (en) 1996-03-06
GB9301465D0 (en) 1993-03-17

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