EP0328467B1 - Elektrische Verbindungshülse - Google Patents

Elektrische Verbindungshülse Download PDF

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Publication number
EP0328467B1
EP0328467B1 EP19890420036 EP89420036A EP0328467B1 EP 0328467 B1 EP0328467 B1 EP 0328467B1 EP 19890420036 EP19890420036 EP 19890420036 EP 89420036 A EP89420036 A EP 89420036A EP 0328467 B1 EP0328467 B1 EP 0328467B1
Authority
EP
European Patent Office
Prior art keywords
plug
fins
connector according
terminal
well
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
EP19890420036
Other languages
English (en)
French (fr)
Other versions
EP0328467A1 (de
Inventor
Michel Jean Louis Ponton
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.)
Electricfil Industrie SARL
Electricfil SA
Original Assignee
Electricfil Industrie SARL
Electricfil SA
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 Electricfil Industrie SARL, Electricfil SA filed Critical Electricfil Industrie SARL
Publication of EP0328467A1 publication Critical patent/EP0328467A1/de
Application granted granted Critical
Publication of EP0328467B1 publication Critical patent/EP0328467B1/de
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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/04—Means providing electrical connection to sparking plugs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole

Definitions

  • the present invention relates to the field of electrical connection between a conductor and an apparatus for producing or using electrical energy.
  • the present invention relates, more particularly, to the means of electrical connection between conductors and organs or accessories for the production or use of electrical energy forming part of heat engines and, more particularly, but not exclusively, of heat engines of the explosion and spark ignition type.
  • connection lugs adapted at the end of the conductors and comprising a connection branch capable of cooperating with an olive-shaped terminal presented by a production device or of use.
  • connection branch is threaded onto the terminal, in the form of an olive, while, in the second case, the tubular plug is inserted inside the conductive well.
  • elastic means are provided for assuming a first surface contact function between the cooperating parts and a second locking function helping to ensure adequate mechanical support between the terminal and the terminal.
  • This mechanical locking function is provided to avoid untimely separation, but also to support the elastic reactions which are produced by insulating tips or caps surrounding the terminal to cooperate with the terminal and ensure the establishment of a sealed connection.
  • an electrical connector terminal serving, without distinction, as a plug or socket and comprising, on either side of a connecting part, an insulating ferrule serving as a crimping branch and a connection element comprising two parts locked between they in overlapping relationship.
  • Patent application EP-A-0 093 300 discloses a terminal for an electric cable comprising a crimping branch and a connection end-piece, the locking of which on an electrode is carried out using a wing cut in the wall of the tip and fitted with a locking boss.
  • connection terminals The development of technologies for the design and manufacture of organs or accessories for the production or use of electrical energy, in relation to heat engines, has led to modification of the connection terminals.
  • the constructions currently proposed are frequently presented in the form of cylindrical, smooth wells, free of peripheral grooves, with closed bottoms, and surrounded by an insulating ferrule delimiting, from the open entrance, an engagement conduit with progressively decreasing section. leading to the bottom of the well.
  • connection lugs in the form of tubular plugs free of bosses.
  • Such plugs are capable of ensuring the establishment of an electrical contact, if not perfect, at least acceptable, but are, on the other hand, incapable of establishing, simultaneously, a resistant mechanical connection capable of withstanding the reaction stress elastic of the protective cap which surrounds it.
  • the object of the present invention is to fill this gap by proposing a new electrical connection terminal between a conductor and a terminal of the type formed by a cylindrical well, smooth, free of locking groove, with closed bottom and surrounded by a ferrule. insulating, said terminal comprising a tubular connection plug capable of cooperating by elastic retraction with said cylindrical well.
  • the electrical connection terminal is characterized in that it comprises a file defined by two triangular wings rolled, in a non-contiguous way, towards each other.
  • Fig. 1 is a sectional elevation of a connector including a connection terminal according to the invention.
  • Fig. 2 is a section taken substantially along line II-II of FIG. 1 .
  • Fig. 3 is a developed plan view, illustrating the process for producing the terminal according to the invention.
  • connection terminal is provided to ensure the electrical connection between a conductor 1 and a terminal 2 of an apparatus or accessory 3 for producing or using electrical energy.
  • Terminal 2 is of the type comprising a conductive cylindrical well 4 with closed bottom, having a smooth internal peripheral wall, devoid of any roughness or annular groove.
  • the well 4 is surrounded by a ferrule 5 of insulating material, implanted in the member or accessory 3 to rise, notably, above the open transverse end of the well 4 .
  • the ferrule 5 has, externally, a collar 6 which is defined by a frustoconical surface 7 which opens out from the external peripheral face of the ferrule 5 .
  • the frustoconical bearing 7 is connected, directly or indirectly, by a cylindrical surface segment, to an annular face 8 called the abutment, extending in a plane substantially perpendicular to the axis of the ferrule 5 .
  • the collar 6 extends at a distance from the external surface of the member or of the accessory 3 , so as to leave a gap E between this surface and the annular face 8 , the function of which appears in the following.
  • the ferrule 5 defines, by its inner peripheral face, an engagement conduit 9 of progressively decreasing section from the inlet to the well 4 .
  • the engagement conduit 9 can be delimited by a frustoconical wall or, as illustrated, by a succession of wall segments cylindrical with progressively decreasing diameters.
  • the electrical connection lug comprises, on either side of a central connecting part 11, a crimping branch 12 and a connection branch 13 .
  • the crimping branch 12 is composed of at least two wings 14 which are shaped by rolling and folding to surround and clamp the terminal part of the conductor 1 with the conductive part of which the wings 14 are in electrical contact.
  • connection terminal 10 is of the bent type. It should be considered that the object of the invention could be implemented, indifferently, with a straight type terminal.
  • connection branch 13 preferably comprises a straight tubular segment 15 extended at the end by a cylindrical tubular plug 16 , shaped to accept a stress of elastic deformation by radial retraction.
  • the plug 16 is made to present, in the idle state, an outside diameter corresponding, by excess, to the inside diameter of the well 4 in which the plug 16 can be force-fitted.
  • the terminal 10 is made so that the plug 16 is defined by non-contiguous rolling of two wings 20 a and 20 b having in plan a triangular shape.
  • This conformation makes it possible to limit the part of the wings 20 a and 20 b which must be subjected to elastic bending during the penetration of the plug into the well 4 without, however, significantly reducing the peripheral surface contact favorable to an efficient electrical connection well 4 .
  • Fig. 3 shows the shape, in developed plan, of the terminal 10 in the embodiment in a bent form.
  • the cutting of a metal blank 30 is carried out so as to delimit a rectangular part 31 intended for the subsequent shaping of the crimping branch 12 .
  • the part 31 is followed by an arcuate segment 32 provided, along its outer edge, with radial tongues 33 intended, in the case present, to provide training by rolling the connecting part 11 .
  • the segment 32 is followed by a substantially rectangular part 34 , intended to be shaped by rolling to form the cylindrical tubular part 15 of the connection branch 13 .
  • the part 34 is extended by an end plate 35 in the form of a non-rectangular parallelogram, delimiting, on either side of a central part 36 , the triangular wings 20 a and 20 b .
  • the plate 35 also has an elongated opening 37 formed along the longest diagonal of the plate 35 , to give it additional elasticity, and thus facilitate the rolling of the wings 20 a and 20 b which are separated from the part 34 by cuts 38 and reduce the force of insertion into the well 4 .
  • the terminal in the developed plane is connected to the blank by two tongues 39 retaining the rectangular part 31 and the plate 35 .
  • the terminal according to the invention is obtained, from the above cut, rolled along the geometric axis x-x ' to present the conformation illustrated in FIG. 1 .
  • This embodiment makes it possible to have a plug 16 of generally cylindrical shape, having at rest a diameter substantially greater than that of the well 4 in which it can be inserted, due to the elastic winding capacity of the wings 20 a and B.
  • the particular shape of the wings 20 a and 20 b allows a cylindrical elastic winding, due to the presence of the cutouts 38 and the light 37 .
  • the plug 16 can be constrained in radial retraction, while retaining its cylindrical shape favorable to good surface contact with the well 4 for the establishment of a suitable electrical connection and to a mechanically resistant connection by the reaction to the elastic deformation by winding imposed on the wings.
  • the plug 16 has a length l less than the depth p of the well 4 .
  • the plug 16 could be formed immediately following the central connecting part 11 being partly separated from the latter by the cutouts 38 .

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (6)

  1. Elektrische Verbindungshülse der Bauart, die zu beiden Seiten eines geraden oder gekrümmten Verbindungsteils (11) einen Fassungsast (12) zum Festklemmen eines Leiters (1) und einen Anschlußast (13) aufweist, der einen zum Zusammenwirken mit einem hohlzylinderförmigen und unten geschlossenen, elektrisch leitenden und von einer isolierenden Tülle umgebenen Schacht (4) bestimmten rohrförmigen Stecker (16) bildet, wobei sich das Zusammenwirken unter elastischer Deformation des Steckers mit radialem Einschieben vollzieht,
    dadurch gekennzeichnet,
    daß der Anschlußast (13) einen Stecker (16) aufweist, der durch zwei dreieckige Schenkel (20a und 20b) definiert ist, die aufeinander zu umgebogen sind, ohne sich zu berühren.
  2. Verbindungshülse nach Anspruch 1, dadurch gekennzeichnet,
    daß die Schenkel (20a und 20b) durch Einschnitte (38) in die benachbarte Partie der Hülse voneinander getrennt sind.
  3. Verbindungshülse nach Anspruch 1, dadurch gekennzeichnet,
    daß die Schenkel (20a und 20b) ausgehend von einer zentralen Partie, in die ein langgestreckter Schlitz (37) eingeschnitten ist, zueinander entgegengesetzt verlaufen.
  4. Verbindungshülse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet,
    daß der Stecker (16) eine axiale Länge (1) aufweist, die kleiner ist als die Tiefe (p) des Schachts (4).
  5. Verbindungshülse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet,
    daß sich die Schenkel (20a-20b) anschließend an an den Verbindungsteil (11) erstrecken.
  6. Verbindungshülse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet,
    daß sich die Flügel (20a-20b) anschließend an ein gerades Rohrsegment (15) erstrecken, das an das Verbindungsteil angesetzt ist.
EP19890420036 1988-02-08 1989-02-06 Elektrische Verbindungshülse Expired - Lifetime EP0328467B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8801661A FR2627021B1 (fr) 1988-02-08 1988-02-08 Cosse de connexion electrique
FR8801661 1988-02-08

Publications (2)

Publication Number Publication Date
EP0328467A1 EP0328467A1 (de) 1989-08-16
EP0328467B1 true EP0328467B1 (de) 1994-01-12

Family

ID=9363203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890420036 Expired - Lifetime EP0328467B1 (de) 1988-02-08 1989-02-06 Elektrische Verbindungshülse

Country Status (3)

Country Link
EP (1) EP0328467B1 (de)
DE (1) DE68912153D1 (de)
FR (1) FR2627021B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254493A (en) * 1990-12-27 1992-10-07 Rover Group A connector for a high tension lead.
JPH09180775A (ja) * 1995-12-25 1997-07-11 Yazaki Corp 高圧電線用キャップの嵌着構造
JP2002075587A (ja) * 2000-09-04 2002-03-15 Sumitomo Wiring Syst Ltd 高圧電線のプラグ側接続部構造

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1487997A (fr) * 1966-07-28 1967-07-07 Amp Inc Connecteurs électriques
DE3380657D1 (en) * 1982-04-30 1989-11-02 Prestolite Wire Corp Ignition wire terminal

Also Published As

Publication number Publication date
FR2627021B1 (fr) 1990-08-03
EP0328467A1 (de) 1989-08-16
FR2627021A1 (fr) 1989-08-11
DE68912153D1 (de) 1994-02-24

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