WO1995011531A1 - Borne electrique femelle - Google Patents

Borne electrique femelle Download PDF

Info

Publication number
WO1995011531A1
WO1995011531A1 PCT/EP1994/003413 EP9403413W WO9511531A1 WO 1995011531 A1 WO1995011531 A1 WO 1995011531A1 EP 9403413 W EP9403413 W EP 9403413W WO 9511531 A1 WO9511531 A1 WO 9511531A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
blade
contact
wall
fact
Prior art date
Application number
PCT/EP1994/003413
Other languages
English (en)
Inventor
Alessandro Genta
Renzo Rampone
Original Assignee
Framatome Connectors International S.A.
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 Framatome Connectors International S.A. filed Critical Framatome Connectors International S.A.
Publication of WO1995011531A1 publication Critical patent/WO1995011531A1/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
    • 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
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section

Definitions

  • the present invention relates to an electric terminal, particularly for automotive use, and more specifically to a female electric terminal designed to mate with a a male blade terminal.
  • Female electric terminals made by blanking and bending conductive sheet metal are known, and comprise, integrally, a ' deformable portion for connection to an electric cable; and a box body having a front opening for insertion of a male blade terminal, and contact blades cooperating with the male terminal.
  • U.S. Patent US-A- 4 834 681 relates to a female terminal of the above type, wherein the box body consists of a bottom wall, two sides connected integral with the bottom wall, and a top wall consisting of two portions, each connected to a respective side, and wherein the sides comprise an outer wall and an inner wall turned on to the outer wall.
  • the contact blades consist of inner side wall portions projecting towards the front opening in the body, and cooperate with opposite faces of the male terminal.
  • the contact blades of terminals of the type briefly described above are symmetrical in relation to the plane of the male terminal, so as to define facing contact areas on the opposite faces of the terminal.
  • Terminals of the aforementioned type are only suitable for use with flat blade type male terminals, as opposed to those with shaped, e.g. ridged cross section, blades, which are becoming increasingly popular by virtue of requiring less material for given mechanical characteristics.
  • a female electric terminal made of conductive sheet metal and integrally comprising a portion for connection to an electric cable; and a box type contact body defining an opening for insertion of a male blade type terminal, and having contact means cooperating with said male terminal; said body comprising a bottom wall, two sides connected integral with said bottom wall, and a top wall consisting of two portions, each connected to a respective said side; said sides comprising an outer wall and an inner wall turned on to said outer wall; said contact means comprising first and second flexible blade means projecting from said inner walls of said sides towards said opening and cooperating elastically with respective opposite faces of said male terminal; characterized by the fact that said first and second blade means are asymmetrical in relation to the plane of said male terminal, so as to define offset contact areas on the respective faces of said male terminal; said first and second blade means comprising respective flexible portions having
  • Figure 1 shows a view in perspective of a first embodiment of a female electric terminal in accordance with the present invention
  • Figure 2 shows a blank from which to produce the Figure 1 terminal
  • Figure 3 shows a side view of the Figure 1 terminal
  • Figure 4 shows a partial longitudinal half section of the Figure 1 terminal
  • Figure 5 shows a section along line V-V in Figure 4 of the terminal engaged by a flat blade male terminal
  • Figure 6 shc.s the ⁇ a ⁇ &e section as in Figure 5 of the terminal engaged by a shaped blade male terminal;
  • Figure 7 shows a flat sheet metal blank from which to produce an electric terminal according to a second embodiment of the present invention
  • Figure 8 shows a cross section of a terminal formed from the Figure 7 blank
  • Figure 9 shows a flat sheet metal blank from which to produce an electric terminal according to a third embodiment of the present invention.
  • Figure 10 shows a cross section of a terminal formed from the Figure 9 blank.
  • Number 1 in Figure 1 indicates a female electric terminal, particularly for automotive use. It should be stressed that terms such as “top”,
  • Terminal 1 is formed in one piece from conductive sheet metal by bending- a flat blank 10 ( Figure 2), the parts of which corresponding to those of terminal 1 described hereinafter are indicated in Figure 2 using the same numbering system.
  • Terminal 1 substantially comprises a contact body
  • Body 2 presents a box structure, and comprises a bottom wall 6; a pair of outer lateral walls 7; and an outer top wall 8 defined by two side by side half walls 9 integral with respective lateral walls 7.
  • Each lateral wall 7 presents a window 7a designed to cooperate, in use, with snap-on connecting means formed in an outer insulating case (not shown) housing terminal 1.
  • half walls 9 mate laterally with each other so that portion 10 presents a closed rectangular section, and defines a front opening 12 for insertion of male terminal 3a or 3b.
  • half walls 9 form a mid longitudinal slot 11.
  • body 2 presents respective inner top half walls 14 turned on to half walls 9 at the longitudinal edges of slot 11; and respective inner lateral walls 15 integral with inner half walls 14 and turned on to lateral walls 7 with which they define respective sides 16 of double thickness.
  • respective flexible blades 20, 21, arranged facing each other, project towards front opening 12, are designed to cooperate with opposite faces of the male terminal, and are curved with their convexities facing each other.
  • blades 20, 21 are asymmetrical in relation to the mid longitudinal plane ⁇ ( Figure 4) of terminal 1 defining the in-service plane of male terminal 3a . or 3b, so as to define offset contact areas on the opposite faces of the male terminal.
  • blade 20 is elongated and tapers slightly lengthwise towards an end portion 22 where it presents a contact 23 defined by a spherical-bowl-shaped impression.
  • blade 20 is flexible substantially along a portion 24 extending between end portion 22 and respective inner lateral wall 15.
  • blade 21 is elongated and tapers slightly towards an end portion 25.
  • Blade 21 is wider than blade 20, and presents, on end portion 25, two contacts 26 similar to and located on either side of contact 23, and symmetrical in relation to plane ⁇ perpendicular to plane ⁇ and through the center of contact 23 ( Figure 5) .
  • the centers of contacts 23, 26 lie in the same transverse plane T perpendicular to planes ⁇ and ⁇ .
  • blade 21 Upon insertion of terminal 3a or 3b, blade 21 is flexible substantially along a portion 27 extending between end portion 25 and respective inner lateral wall
  • blades 20 and 21 are equally flexible upon insertion of terminal 3a or 3b, so as to transmit balanced elastic reactions to the respective faces of the terminal.
  • flexible portions 24, 27 of blades 20, 21 present the same flexural rigidity, i.e. for a given thickness, the width of portions 27a, 27b is equal to half the width of portion 24 measured in the same transverse plane.
  • Blades 20, 21 are so formed as to assume, in the absence of external restraints, a more inclined position towards plane ⁇ than that shown in Figure 2; and are preloaded, i.e. deformed outwards into the position shown, by respective tabs 40 originating from the front edge of lateral walls 7 and turned inwards of body 2 so as to enclose and cooperate with respective end portions 22, 25 of blades 20, 21, and so increase -the contact pressure for a given deformation - of the blades upon insertion of male terminal 3a or 3b.
  • Tabs 40 also provide for protecting blades 20, 21 and preventing damage caused by misinsertion of the male terminal.
  • FIG. 5 shows a cross section of terminal 1 engaged by a flat blade terminal 3a, and wherein contact 23 cooperates with a central portion of one face of terminal 3a, and contacts 26 with lateral portions of the opposite face.
  • Figure 6 shows a cross section of terminal 1 engaged by a terminal 3b with a shaped blade, in particular, having a ridged cross section with a central rib 30 and two lateral wings 31 offset in --elation to rib 30. Though made of thinner material as compared with terminal 3a, terminal 3b presents the same mechanical characteristics by virtue of its ridged structure.
  • contact 23 cooperates with rib 30, on the face projecting in relation to wings 31, while contacts 26 cooperate with the opposite face of respective wings 31. Since the distance between the planes of the contact faces of terminal 3b is typically equal to the thickness of terminal 3a, deformation of blades 20, 21 upon insertion of terminal 3a or 3b is identical in both cases and hence results in the same contact pressure. Consequently, electric and mechanical performance of terminal 1 is identical in both cases.
  • Figures 7 and 8 respectively show a blank 35, and a cross section of a female terminal 36 formed from blank 35 according to a further embodiment of the present invention.
  • terminal 36 and blank 35 similar or equivalent to those of terminal 1 and blank 10 are indicated using the same numbering system.
  • Terminal 36 is identical to terminal 1 with the exception of blade 21.
  • blade 21 is substantially T-shaped, and comprises an end portion 25 substantially similar to the end portion of blade 21 of terminal 1; and a flexible portion 27 substantially similar to flexible portion 24 of blade 20.
  • Figures 9 and 10 respectively show a blank 37, and a cross section of a female terminal 38 formed from blank 37 according to a further embodiment of the present invention. Any parts of terminal 38 and blank 37 similar or equivalent to those of terminal 1 and blank 10 are indicated using the same numbering system.
  • Terminal 38 differs from terminal 1 by blade 21 being replaced by a pair of independent, side by side blades 21, as shown by portions 21 in Figure 9.
  • Each blade 21 presents a respective contact 26, and comprises a flexible portion 27 of a width substantially equal to half the width of flexible portion 24 of blade 20 measured in the same transverse plane.
  • Terminals 36, 38 operate in the same way and present the same advantages as described with reference to terminal 1.
  • the blades need not necessarily present impressions defining the contacts.
  • the contact regions may be defined by simply curving the blades longitudinally, and contact with the flat surface of the male terminal is effected substantially along a generating line.
  • the blades may also be curved transversely, in which case, contact is theoretically punctiform and in practice located in a circular area of tangency.
  • the female terminal according to the present invention permits the use of ridged-section male terminals turned over 180° in relation to that described, by appropriately adjusting the initial gap between the contact blades to achieve the required in-service contact pressure.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Organic Insulating Materials (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

Une borne électrique femelle (1), conçue notamment pour les automobiles, est réalisée dans une feuille métallique conductrice et comprend une portion monobloc (4) de raccordement à un câble électrique (5), ainsi qu'un corps de contact (2) en forme de boîte, ce corps étant doté de moyens de contact (20, 21) coopérant avec les faces opposées d'une borne mâle complémentaire (3a, 3b), d'une paroi inférieure (6), d'une paroi supérieure (8) ainsi que d'une paire de côtés (16) déterminés par une paroi externe (7) et une paroi interne (15) tournée sur la paroi externe; les moyens de contact consistent en une paire de lames flexibles (21, 21) qui saillent des parois internes (15) des côtés (16), sont asymétriques par rapport au plan (α) de la borne mâle (3a, 3b) de manière à déterminer des zones de contact décalées sur les faces respectives de la borne mâle, et comprennent chacune des portions (24, 27) présentant au moins à peu près la même rigidité de flexion que les faces respectives de la borne mâle.
PCT/EP1994/003413 1993-10-18 1994-10-17 Borne electrique femelle WO1995011531A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO93A000765 1993-10-18
ITTO930765A IT1261616B (it) 1993-10-18 1993-10-18 Terminale elettrico femmina

Publications (1)

Publication Number Publication Date
WO1995011531A1 true WO1995011531A1 (fr) 1995-04-27

Family

ID=11411802

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/003413 WO1995011531A1 (fr) 1993-10-18 1994-10-17 Borne electrique femelle

Country Status (2)

Country Link
IT (1) IT1261616B (fr)
WO (1) WO1995011531A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749441A1 (fr) * 1996-06-03 1997-12-05 Framatome Connectors Int Borne de contact electrique femelle a pression de contact controlee
EP0863578A2 (fr) * 1997-03-03 1998-09-09 Sumitomo Wiring Systems, Ltd. Elément de contact électrique avec fixation elastique
EP0984517A2 (fr) * 1998-08-31 2000-03-08 The Whitaker Corporation Douille de contact électrique
EP1662617A1 (fr) * 2003-06-18 2006-05-31 Ryosei Electro-Circuit Systems, Ltd. Terminal de connexion
WO2012023037A1 (fr) * 2010-08-17 2012-02-23 Fci Automotive Holding Borne électrique femelle
EP2487757A1 (fr) * 2011-02-10 2012-08-15 Delphi Technologies, Inc. Elément de raccordement électrique
CN106384901A (zh) * 2016-11-29 2017-02-08 河南天海电器有限公司 汽车用激光焊接端子

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717361A (en) * 1985-08-02 1988-01-05 Daiichi Denshi Kogyo Kabushiki Kaisha Contact for connector
US4834681A (en) * 1987-09-28 1989-05-30 Francelco Electric contact terminal
US4919628A (en) * 1987-10-19 1990-04-24 Interlock Corporation Tab receptacle with fixed beam contacts
US5106329A (en) * 1990-05-16 1992-04-21 Yazaki Corporation Socket contact

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717361A (en) * 1985-08-02 1988-01-05 Daiichi Denshi Kogyo Kabushiki Kaisha Contact for connector
US4834681A (en) * 1987-09-28 1989-05-30 Francelco Electric contact terminal
US4919628A (en) * 1987-10-19 1990-04-24 Interlock Corporation Tab receptacle with fixed beam contacts
US5106329A (en) * 1990-05-16 1992-04-21 Yazaki Corporation Socket contact

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749441A1 (fr) * 1996-06-03 1997-12-05 Framatome Connectors Int Borne de contact electrique femelle a pression de contact controlee
EP0812036A1 (fr) * 1996-06-03 1997-12-10 Framatome Connectors International Borne de contact électrique femelle à pression de contact contrÔlée
US5947777A (en) * 1996-06-03 1999-09-07 Framatome Connectors International Female electrical contact terminal with controlled contact pressure
EP0863578A2 (fr) * 1997-03-03 1998-09-09 Sumitomo Wiring Systems, Ltd. Elément de contact électrique avec fixation elastique
EP0863578A3 (fr) * 1997-03-03 1999-11-24 Sumitomo Wiring Systems, Ltd. Elément de contact électrique avec fixation elastique
EP0984517A2 (fr) * 1998-08-31 2000-03-08 The Whitaker Corporation Douille de contact électrique
EP0984517A3 (fr) * 1998-08-31 2000-06-07 The Whitaker Corporation Douille de contact électrique
US6296533B1 (en) 1998-08-31 2001-10-02 The Whitaker Corporation Electrical receptacle contact
EP1662617A1 (fr) * 2003-06-18 2006-05-31 Ryosei Electro-Circuit Systems, Ltd. Terminal de connexion
EP1662617A4 (fr) * 2003-06-18 2007-12-05 Ryosei Electro Circuit Sys Ltd Terminal de connexion
US7553203B2 (en) 2003-06-18 2009-06-30 Fci Connecting terminal
WO2012023037A1 (fr) * 2010-08-17 2012-02-23 Fci Automotive Holding Borne électrique femelle
US8944860B2 (en) 2010-08-17 2015-02-03 Delphi International Operations Luxembourg, S.A.R.L. Electrical female terminal
EP2487757A1 (fr) * 2011-02-10 2012-08-15 Delphi Technologies, Inc. Elément de raccordement électrique
CN106384901A (zh) * 2016-11-29 2017-02-08 河南天海电器有限公司 汽车用激光焊接端子
CN106384901B (zh) * 2016-11-29 2018-09-04 河南天海电器有限公司 汽车用激光焊接端子

Also Published As

Publication number Publication date
IT1261616B (it) 1996-05-23
ITTO930765A1 (it) 1995-04-18
ITTO930765A0 (it) 1993-10-18

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