EP1174947B1 - Dispositif de connexion électrique - Google Patents

Dispositif de connexion électrique Download PDF

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Publication number
EP1174947B1
EP1174947B1 EP01401916A EP01401916A EP1174947B1 EP 1174947 B1 EP1174947 B1 EP 1174947B1 EP 01401916 A EP01401916 A EP 01401916A EP 01401916 A EP01401916 A EP 01401916A EP 1174947 B1 EP1174947 B1 EP 1174947B1
Authority
EP
European Patent Office
Prior art keywords
contact
female
base part
male
female contact
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.)
Expired - Lifetime
Application number
EP01401916A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1174947A1 (fr
Inventor
Patrick-Nicolas Charles
Bernard Chevalier
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.)
Tyco Electronics France SAS
Original Assignee
Tyco Electronics France SAS
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 Tyco Electronics France SAS filed Critical Tyco Electronics France SAS
Publication of EP1174947A1 publication Critical patent/EP1174947A1/fr
Application granted granted Critical
Publication of EP1174947B1 publication Critical patent/EP1174947B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • 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
    • 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

Definitions

  • the present invention relates to an electrical connection device used in particular in motor vehicles for the electrical connection of aircraft devices, fuse boxes or relay boxes, for example.
  • the invention more particularly relates to an electrical connection device of the type comprising a female connector and a male connector, in which
  • the female connector comprises an insulating base, which has a cell adapted to receive and guide the male connector, and a male contact tab housed in said cell to provide an electrical connection with the male connector,
  • the male connector comprises an insulating housing, in which is housed a female contact adapted to cooperate with said male contact tab to provide said electrical connection,
  • the female contact has a substantially channel-shaped base portion, with side walls carrying, in a first end region of the base portion, at least one pair of flexible contact blades adapted to grip said contact tab male and defining a contact zone, and in a second end region of said base portion, at least one pair of crimpable wings on a power supply conductor, the base portion of the female contact having a transition region between said first and second end regions.
  • the female contact usually comprises several pairs of flexible blades the two contact blades of each pair having a smaller spacing than the thickness of the male contact tab of the female connector to ensure, in use, a high pressure and, consequently, a good electrical contact between them.
  • contact blades of the female contact of the male connector and the male contact tab of the female connector usually have different lengths to reduce the insertion force of the male tongue into the female contact.
  • US-A-5,873,754 discloses a female connector contact, having a contact region and a crimping region connected by a transition region.
  • the female contact base portion carries two wings that are bent toward each other to form, with the base portion, a closed stiffening ring.
  • the insulating housing and the female contact of the male connectors are manufactured separately.
  • the insulating housing comprises a generally parallelepiped-shaped cage, which is closed on four sides by two longitudinal walls and two transverse walls surrounding the contact area defined by the pairs of contact blades.
  • the cage can be closed by a lid which is connected to the cage by a flexible hinge molded with the cage and the lid.
  • two arches are formed on the cover and two detents are formed on the cage so that the arches can hook respectively on the detents, by snapping, when the cover is tilted on the cage to close his fifth side.
  • each female contact must be handled individually to be placed in a corresponding insulating casing whose cover is in the open position, then the The cover of each housing must then be manipulated to be placed in the closed position.
  • an electrical connection device having a greater gas and moisture tightness, in particular between the contact area and the second end region of the base part of the female contact.
  • the present invention therefore firstly aims to provide an electrical connection device in which the contact blades of the female contact are less sensitive to the deformation of the side walls of the base portion of said female contact, which occurs during the operation of crimping the wings of said base portion on a power supply conductor.
  • the subject of the present invention is an electrical connection device of the type defined in the preamble, in which, in the transition region, the side walls of the channel-shaped base portion of the female contact bear two wings which are curved towards each other and abut against each other so as to form with said base portion a closed stiffening ring, the insulating housing is overmolded on the female contact, characterized in that the insulating casing comprises a generally parallelepiped-shaped cage, which is closed on four sides by two longitudinal walls and two transverse walls surrounding the contact zone defined by the at least one pair of contact blades, and on a fifth side by a wall which is integral with the longitudinal and transverse walls of the cage and wherein the first end region and the transition region of the the base portion of the female contact, including the stiffening ring, are embedded to create a sealed separation between said contact area and the second end region of said base portion of the female contact
  • the stiffening ring prevents the deformation of the side walls from propagating from the second end region of the party beyond the transition region into the first end region of the base portion where the flexible contact blades are located.
  • a cage which is hermetically closed on five sides (there is no more lid that joins more or less well to the cage) and a tight separation is created between the contact zone and the second region of end of the base part of the female contact
  • said closed stiffening ring has a circular shape; around the cage is arranged a clean seal to ensure a seal between the housing of the male connector and the base of the female connector after nesting of said cage in the cell of the base of the female connector; this characteristic also contributes to improving the tightness of the electrical connection device; during the overmolding of the insulating housing on the female contact, a locking means is formed adapted to ensure a locking of the male connector on the female connector.
  • the invention relates to the male connector for the connection device described above, and the female contact for the aforementioned male connector.
  • connection device 1 of FIGS. 1 to 3 consists essentially of a female connector 2 and a male connector 3.
  • the female connector 2 comprises a base 4 ( Figures 1 to 3 and 10), an insulating material which may for example be integral with an electrical device to be connected (not shown).
  • the base 4 has roughly the general shape of a rectangular parallelepiped, whose edges oriented parallel to the insertion direction of the male connector in the female connector are rounded.
  • the base 4 comprises, in its face 5 (Figure 10), which, in use, is oriented towards the male connector 3, a cavity or cavity 6 of generally rectangular shape, which is adapted to receive a portion 7 ( Figure 1) corresponding form of the insulating housing 8 of the male connector 3.
  • a male electrical contact tab 9 protrudes from the bottom 11 of the cell 6 and extends over most of the length of the cell 6, in the plane of symmetry of the base 4.
  • the side walls of the base 4 delimiting the cell 6 comprise, on the inside, grooves 12, 13, 14 and 15 adapted to cooperate respectively with ribs 16, 17, 18 and 19 (FIGS. 5 and 8) which are carried by the portion 7 of the housing 8 of the male connector 3, for guiding the latter when its portion 7 is inserted into the cell 6 of the base 4 of the female connector 2.
  • the grooves 12, 13, 14 and 15 on the one hand, and the ribs 16, 17, 18 and 19, on the other hand, are arranged asymmetrically respectively in the cell 6 and on the part 7 so that the latter can not be inserted with only one possible orientation in the cell 6 of the base 4.
  • the base 4 of the female connector 2 is extended by a portion 21 in the form of a skirt (FIGS. 1 to 3 and 10), which is intended to receive and to closely surround a seal 22 (FIGS. 2 and 4 to 8) which is carried by the part 7 of the insulating housing 8 of the male connector 3 and which is located at the base of the ribs 16 to 19.
  • the seal 22 may for example consist of a three-lip seal, silicone, which is overmoulded on the part 7 of the insulating housing 8.
  • the skirt-shaped portion 21 of the base 4 comprises a projection 23 (FIGS. 1 to 3 and 10) designed to cooperate with a catch 24 (FIGS. 1 to 6). and 8) a locking lever 25 which is formed integrally, by molding, with the housing 8 of the male connector 3, to provide a lock between the latter and the female connector 2 when the portion 7 of the housing 8 is fully engaged in the cell 6 of the base 4 as shown in Figure 3.
  • the locking lever 25 is constituted by a flexible tongue which extends parallel to the transverse wall 7d of the portion 7 of the housing 8, the catch 24 being carried by the face of the flexible tongue which is oriented towards the face transverse wall 7d as shown in FIGS. 5 and 6.
  • the flexible tongue forming the locking lever 25 is surrounded on three sides by a protective cage 26 which has a generally parallelepipedal shape and which is formed integrally, by molding, with the housing 8 of the male connector 3 as is more particularly visible in Figures 5, 6, 8 and 9.
  • the protective cage 26 has a wall 26a, which extends parallel to the transverse wall 7d of the part 7 of the housing 8, and two walls 26b and 26c which, in their lower part, are connected in one piece to the housing 8.
  • the flexible tongue forming the lever of locking 25 is connected in one piece, by a curved portion 25a, to the wall 26a of the cage 26, in the median region of the upper edge of this wall 26a as shown in Figures 6 and 8.
  • the lower end of the flexible tongue forming the locking lever 25 protrudes slightly outwardly beyond the lower end of the cage 26, so that the locking lever can be operated manually or with the aid of a suitable tool, such as a screwdriver, when it is desired to detach the male connector 3 from the female connector 2.
  • the male connector 3 comprises a female contact 27 which is housed at least partially in the housing 8.
  • the female contact 27 is shown in FIG. 11 in the state separated from the male connector 3.
  • the female contact 27 can be manufactured in series from a conductive metal strip by known cutting and bending techniques.
  • the female contact 27 comprises, in known manner, a base portion 28 substantially in the shape of a channel with a semicircular cross section, whose side walls bear, in a first end region 28a of the base part, at least one pair of flexible contact blades, for example three pairs of contact blades 29, 30 and 31, which, in use, are intended to grip the male contact tongue 9 of the female connector 2 to establish a electrical connection with it.
  • Each pair of blades 29, 30 or 31 is lyre-shaped and the pairs of blades are preferably of different lengths to reduce the insertion force of the male contact tongue 9 in the female contact 27.
  • the side walls of the base portion 28 of the female contact 27 carry, in a second end region 28b of the base portion, at least one pair of wings, preferably two pairs wings 32 and 33, able to be crimped on a power supply conductor (not shown).
  • the two wings 32 are crimped on one stripped end of the electrical conductor, while the two wings 33 are crimped on the sheath of said conductor.
  • the crimping of the wings 32 and 33 on the electrical conductor causes a deformation of the sidewalls of the base portion 28, which can propagate into the end region 28a and cause a change, particularly a decrease. of the spacing of the blades of each pair of blades 29, 30 and 31.
  • a change particularly a decrease. of the spacing of the blades of each pair of blades 29, 30 and 31.
  • two flanges 34 are cut from the conductive metal strip so as to be adjacent respectively to both sides of the base portion 28 in the transition region 28c between the two end regions 28a and 28b.
  • the two flanges 34 When folding the blank thus obtained, before crimping the two pairs of flanges 32 and 33 on the electrical conductor, the two flanges 34 are bent towards each other, so that they rest end-to-end against each other as shown in FIG. 11.
  • the two flanges 34 form, in combination with the transition region 28c of the base part, a closed stiffening ring 35, which opposes deformation of the side walls of the base portion 28 in the end region 28a thereof when the wings 32 and 33 are subsequently crimped onto the electrical conductor.
  • the stiffening ring 35 has a circular shape as shown in FIGS. 7 and 11.
  • the entire housing 8 of the male connector 3, with the locking lever 25 and its protective cage 26, is obtained by overmolding on the female contact 27.
  • the portion 7 of the housing 8 constitutes a generally parallelepiped shaped cage, which is closed on four sides by two longitudinal walls 7a, 7b and two transverse walls 7c and 7d, surrounding the contact blades 29, 30 and 31, and on a fifth side by a wall 7th floor which is in one piece with the longitudinal and transverse walls of the cage.
  • the bottom wall 7e protrudes outwardly beyond the four walls 7a to 7d of the cage 7 and forms a seat for the seal 22.
  • the bottom wall 7e is connected by a single on the side walls 26b and 26c of the protective cage 26.
  • the end region 28a and the transition region 28c of the base portion of the female contact 27, including the stiffening ring 35, are embedded in the bottom wall 7e.
  • a sealed partition 36 (FIG. 6) between the contact zone, in which the contact blades 29, 30 and 31 are located, and the crimping zone of the electrical conductor, which is formed by the region of contact. end 28b of the base portion 28 and the wings 32 and 33 of the female contact 27.
  • guide ribs 37 may advantageously be formed on the internal face of the longitudinal walls 7a, 7b of the cage 7, to ensure the guiding of the contact tab male 9 of the female connector 2 between the contact blades 29, 30 and 31 while the male connector and the female connector are nested one inside the other.
  • the housing 8 of the male connector 3 When molding the housing 8 of the male connector 3, it can also be formed, in the region of the stiffening ring 35, a flange or flange 38 for the attachment of a protective sheath for the electric cable and the zone crimping of the female contact 27.
  • the manufacture of the male connector can be greatly simplified and its industrial cost reduced.
  • the molding station which is in any case necessary for the manufacture of the housing of the male connector, can be integrated into the series production line of the female contacts 27, which eliminates the transfer operations that were previously necessary to individually bring the female contacts and housings to an assembly station, as well as the assembly operations themselves.
  • the housing 8 of the male connector 3 could be overmolded on the female contact 27 after the crimping operation of an electrical conductor sheathed in the crimping zone formed by the end region 28b of the part of base 28 and by the wings 32 and 33 of the female contact, so that the crimping zone of the female contact and a portion of the sheath of the electrical conductor are also completely embedded in the plastic of the housing 8.
  • the invention has been more particularly described with respect to a preferred embodiment of the invention, in which the housing 8 of the male connector 3 is overmolded on the female contact 27, the invention applies also to a male connector in which the female contact 27, provided with a stiffening ring 35, is placed in a housing of the type of those described in the document FR 2 778 275.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
EP01401916A 2000-07-18 2001-07-18 Dispositif de connexion électrique Expired - Lifetime EP1174947B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0009380A FR2812130B1 (fr) 2000-07-18 2000-07-18 Dispositif de connexion electrique
FR0009380 2000-07-18

Publications (2)

Publication Number Publication Date
EP1174947A1 EP1174947A1 (fr) 2002-01-23
EP1174947B1 true EP1174947B1 (fr) 2007-04-18

Family

ID=8852614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01401916A Expired - Lifetime EP1174947B1 (fr) 2000-07-18 2001-07-18 Dispositif de connexion électrique

Country Status (5)

Country Link
US (1) US6478635B2 (es)
EP (1) EP1174947B1 (es)
DE (1) DE60127902T2 (es)
ES (1) ES2284602T3 (es)
FR (1) FR2812130B1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003281989A (ja) * 2002-03-25 2003-10-03 Tyco Electronics Amp Kk ブレード型ヒューズホルダ及びそれに使用されるコンタクト
US6692316B2 (en) * 2002-04-16 2004-02-17 Delphi Technologies, Inc. High current terminal blade type sealed connection system
DE20208635U1 (de) * 2002-06-04 2003-10-16 Bosch Gmbh Robert Kontaktelement für eine elektrische Steckverbindung
US6811450B1 (en) * 2003-05-27 2004-11-02 Molex Incorporated Electrical receptacle-type terminal
JP4579021B2 (ja) * 2005-03-23 2010-11-10 ヒロセ電機株式会社 電気コネクタ
US7744403B2 (en) * 2006-11-29 2010-06-29 3M Innovative Properties Company Connector for electrical cables
US8721376B1 (en) * 2012-11-01 2014-05-13 Avx Corporation Single element wire to board connector
US20140120786A1 (en) 2012-11-01 2014-05-01 Avx Corporation Single element wire to board connector
US9391386B2 (en) 2014-10-06 2016-07-12 Avx Corporation Caged poke home contact
DE112018001099T5 (de) * 2017-03-01 2019-12-19 Molex, Llc Elektrischer Anschluss und Verbinderanordnung
ES2789598T3 (es) * 2017-04-19 2020-10-26 Aptiv Tech Ltd Terminal de contacto montado a partir de al menos dos partes
US10320096B2 (en) 2017-06-01 2019-06-11 Avx Corporation Flexing poke home contact
CN112350092B (zh) * 2019-08-08 2023-07-18 上海莫仕连接器有限公司 连接器及端子

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
FR954063A (fr) * 1947-09-26 1949-12-19 Perfectionnements aux porte-savon
DE2811774A1 (de) * 1978-03-17 1979-09-20 Bunker Ramo Elektrischer buchsenkontakt
US4550972A (en) * 1984-04-09 1985-11-05 Amp Incorporated Cylindrical socket contact
US4871331A (en) * 1988-05-25 1989-10-03 Yazaki Corporation Bulb socket for wedged-base bulb
JPH0729581Y2 (ja) * 1990-03-20 1995-07-05 矢崎総業株式会社 雌端子金具
JPH0731510Y2 (ja) * 1990-05-16 1995-07-19 矢崎総業株式会社 雌端子金具
DE29516504U1 (de) * 1994-10-21 1995-12-07 Whitaker Corp Elektrischer Steckverbinder mit hoher Dichte
GB9612922D0 (en) * 1996-06-20 1996-08-21 Amp Gmbh Electrical terminal
US5897404A (en) * 1996-09-30 1999-04-27 The Whitaker Corporation Socket terminal
JP3228880B2 (ja) * 1996-12-19 2001-11-12 矢崎総業株式会社 防水コネクタ
FR2778275B1 (fr) * 1998-04-30 2000-07-21 Proner Comatel Sa Dispositif de connexion electrique a verrouillage

Also Published As

Publication number Publication date
EP1174947A1 (fr) 2002-01-23
US20020031958A1 (en) 2002-03-14
FR2812130B1 (fr) 2003-01-24
ES2284602T3 (es) 2007-11-16
DE60127902D1 (de) 2007-05-31
DE60127902T2 (de) 2008-01-17
FR2812130A1 (fr) 2002-01-25
US6478635B2 (en) 2002-11-12

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