EP1133013B1 - Pièce de contact pour une connexion électrique ainsi que son procédé de fabrication - Google Patents

Pièce de contact pour une connexion électrique ainsi que son procédé de fabrication Download PDF

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Publication number
EP1133013B1
EP1133013B1 EP01102918A EP01102918A EP1133013B1 EP 1133013 B1 EP1133013 B1 EP 1133013B1 EP 01102918 A EP01102918 A EP 01102918A EP 01102918 A EP01102918 A EP 01102918A EP 1133013 B1 EP1133013 B1 EP 1133013B1
Authority
EP
European Patent Office
Prior art keywords
contact
socket part
contact element
area
protective sleeve
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
EP01102918A
Other languages
German (de)
English (en)
Other versions
EP1133013A3 (fr
EP1133013A2 (fr
Inventor
Horst Derleth
Rudolf Kolb
Matthias Schweizer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1133013A2 publication Critical patent/EP1133013A2/fr
Publication of EP1133013A3 publication Critical patent/EP1133013A3/fr
Application granted granted Critical
Publication of EP1133013B1 publication Critical patent/EP1133013B1/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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • 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

Definitions

  • the invention relates to a contact piece for an electrical Plug connection according to the preamble of the claim 1 and a process for its production.
  • Contact pieces of the type mentioned are particularly characterized in that its contact area is that for receiving a cylindrical contact pin - the contact piece corresponding counterpart of the connector - cage-like is formed, that is, as a plug-in direction longitudinally slotted hollow body, which is preferably is additionally twisted in the circumferential direction. Especially in the latter case is therefore the contact pin in the inserted Safe condition on a plurality of strip-shaped slats of the contact piece, which is why this type of connector safe even with relatively high electrical loads can be used.
  • the patent US 5,921,822 discloses a female end piece a connector according to the preamble of claim 1 with clamping sections for one Wire and its sheathing and with a cylindrical Contact section.
  • the contact section has a rear and a front hexagonal end ring between which three or five contact rods or springs extend.
  • a protective hood is arranged over the contact area.
  • the publication FR 2 754 639 A1 discloses methods for Manufacture of socket contacts for electrical plugs, the a tubular contact area for receiving a contact pin and a connection area for an electrical Have conductors.
  • a number of lead wires are attached, which forms an elastic cage for the contact pin.
  • a sheet metal part is punched out in the form of a parallelogram, of which an elongated strip along a central axis protrudes.
  • the row of lead wire pieces attached at their ends On one side of the sheet metal part is parallel to its central axis, the row of lead wire pieces attached at their ends.
  • the parallelogram rolled up into a hollow cylinder, the on their End pieces of wire attached to the surface of a single-shell Nestle hyperboloids.
  • the hollow cylinder forms the contact area, while the strip the connection area of the socket contact.
  • the present invention is therefore based on the object for a contact piece of an electrical connector to create a further embodiment, which are inexpensively manufactured in large series production can be, the effort for the punching and bending processes reduced and a dimensionally stable product technologically controllable to achieve with simpler tools is.
  • This solution has the advantage that the contact piece itself is very simple. There is only one Contact element with the connection area on one and the actual contact area at the other end. This is electrical considered, advantageous simply because in this If there are any problems with electrical contact resistance due to tolerances, mismatches and the like can occur between several components. It is advantageous further that this contact element as a stamped and bent part can be made from a strip material. That remains the individual contact element - strapped across - on one at Punch out the remaining margins of the original Tape material hanging, what its further processing in the Series significantly simplified. The only assembly step is there in it, on the contact area of the already completed Contact element to press the protective sleeve. Also for later further processing until the assembly of the The connector remains taped across its carrier strip.
  • the socket part of the contact element one at each end of the contact area circumferential inner or outer flange, furthermore the Protective sleeve designed as a thin-walled hollow cylinder, which lies on the circumference of the inner flange with a press fit, compared to the circumference of the outer flange, however Match fit.
  • the protective sleeve and contact element with each other simply, mechanically are securely connected.
  • the socket part in the protective sleeve sufficient Match to become elastic when inserting a contact pin to be able to deform. This not only reduces the necessary insertion force, but also increases the electrical Operational safety, so leaves a high one without malfunction Number of mating operations too.
  • the contact piece according to the invention stands out also characterized in that it is according to the only procedural claim also on a simple one, for mass production suitably essentially as a stamped and bent part lets create and edit well in intermediate steps is because it crosses with other contacts taped at predetermined intervals on a serving as a carrier Margins of the original tape material set is. It also happens in this machine-compatible condition for shipping to the customer who does the actual connector assembly itself.
  • a in Figure 1 in a partially cut side view shown contact piece 1 for an electrical Plug connection has a connection area at one end 11 and at the other end facing away from a contact area 12.
  • the contact piece 1 is composed of two components. One of these components is a contact element 2. As will be shown in more detail below, this is a Stamped and bent part made from a flat strip material.
  • this is a Stamped and bent part made from a flat strip material.
  • the contact element shown in FIG. 1 2 is for connecting a not shown electrical conductor provided a crimp connection.
  • To the contact element 2 in the connection area 11 has two pairs of connecting tabs bent upwards, between the the electrical conductor, not shown, when connecting is inserted.
  • connection tabs the actual crimp contact 21, from which, after crimping, the stripped free end of the illustrated electrical conductor is enclosed. That too external pair of connection tabs is used during the crimping process around the protective sheath of the electrical conductor, not shown bent around and thus serves as a clamp connection 22, the electrical conductor, not shown, on the contact element 2 mechanically determines that the electrical Connection in the area of the crimp contact 21 strain relieved is.
  • the contact element 2 has a socket part 23 on that for receiving a schematically illustrated Contact pin 3 of the electrical connector designed is.
  • the socket part 23 is as one cylindrical hollow body formed in the contact area 12 has a flange 24 or 25 at both ends.
  • the socket part is between these two flange webs 24 and 25 23 parallel to the axis, that is, along the direction of insertion of the Contact pin 3 slotted. It therefore has one A plurality of web-like lamellae 26, which in the final state of the contact element 2 by turning the two flange webs 24 and 25 of the socket part 23 are twisted against each other.
  • the twisted slats 26 of the socket part 23 are through this torsion process in the form of hyperbolic surfaces arched inside and form a multitude in their entirety from local contact points that occur when the contact pin is inserted 3 in the socket part 23 at its circumference Apply elastic pre-tension.
  • This contact principle is on well known, so here is an even more detailed one Explanation for understanding is no longer required. Further Details of the present embodiment will be given in the following context.
  • the described socket part 23 of the contact element 2 is in mechanically a relatively sensitive structure. It must not be deformed during transport and assembly processes or otherwise damaged, should on the other hand be permanently elastic to be in spite of a possible variety of mating operations to function electrically safely and without errors.
  • the second component of the contact piece 1 is a thin-walled one Protective sleeve 4 provided over the contact area 12 of the contact element 2 is pushed.
  • Figure 2 illustrates that the protective sleeve 4 on its one, in the assembled state on the inner flange 24 of the Contact element 2 pushed end 41 slightly has reinforced walls. This wall reinforcement serves the protective sleeve 4 with a press fit on the inner flange web 24 to be able to slide on the contact element 2.
  • FIG. 4 it is shown on the basis of a sectional diagram that for the contact element 2 described as a starting material Tape material is used from which the individual contact elements 2, cross strapped, punched out.
  • Tape material is made up of electrical contacts made of a Cu-Sn alloy, its surface over the course the manufacture of the contact elements 2 electroplated becomes. For example, one is initially used as the adhesive layer Nickel layer, then a gold layer and optionally one covering tin layer applied.
  • the sectional view of the contact elements 2 shown in FIG. 4 illustrates that this is at a predetermined pitch t on one when punching out the contours of the contact elements 2 stationary carrier strips 5 to its longitudinal direction set transversely over a narrow fastening web 51 are. At this is the connection area 11 of the contact elements 2 scheduled.
  • the contact area closes at the top 12 with the inside flange 24, the cut Slats 26 and the outer flange 25 of the socket part 23 on. Both flange webs 24 and 25 face each other in pairs each assigned a locking lug 27 or a locking recess 27 'on.
  • the inner flange 24 of the contact element 2 has Furthermore, one lying on the longitudinal axis of the contact element 2 Fixing bore 28 on, while the outer flange 25 on its outer edge a pair of groove-shaped Has edge slots 29. The function of these items 27 to 29 of the socket part 23 of the contact element 2 are explained in more detail below.
  • the contact elements 2 When manufacturing the contact elements 2, these are first corresponding to the sectional view shown in Figure 4 punched out of the band material. Hanging on the carrier strip 5 the contact elements 2 are then in the already mentioned Wise surface finish. Then locks up Bending and rolling process in which the contact elements 2 in Connection area 11 bent from both sides or in Contact area 12 are rolled. Add in this rolling process detents 27 assigned to each other in pairs or locking recesses 27 'in one another and fix thus the socket part 23 in the circumferential and longitudinal directions. In order to then twist the socket part 23 to be able to, the fixing hole 28 is provided on the one hand.
  • the inner flange 24 of the twisting socket part 23 by means of a inserted therein Bearing pin of a twisting tool against twisting in Circumferential direction secured.
  • the actual torsion of the socket part 23 is with a blade-like rotating part of the twisting tool performed that with its tip in the direction of insertion on the outer wall of the outer flange 25 is brought up and engages in the groove-shaped edge slots 29.
  • By turning the rotating part of the twisting tool a permanent twisting of the Socket part 23 preferably relative to, for example, 10 ° to its stretched location.
  • the molded contact elements 2 each in the direction of insertion Protective sleeve 4 pushed, with which the contact piece 1 finished is mounted. It is still taped for shipping rolled up on packaging material and in this condition for final assembly in a connector housing provided. This is about the entire manufacturing process of the contact piece 1 continuously until final assembly given the connector an embodiment, the itself consists of only two easy-to-assemble components and in all, with its manufacture and further processing related process steps for automated Available.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (7)

  1. Pièce de contact (1) conductrice pour une connexion électrique par enfichage, démontable, comprenant une zone de raccordement (11) pour un conducteur électrique et à l'opposé de celle-ci, en tant que pièce conjuguée de la connexion par enfichage, une zone de contact (12) qui est destinée à recevoir une broche de contact (3) cylindrique, et présente, disposée dans une enveloppe cylindrique coaxiale, une pièce femelle (23) en forme de cage comprenant un grand nombre de lamelles (26) espacées les unes des autres, la pièce de contact (1) étant formée d'un élément de contact (2) d'un seul tenant, qui comprend aussi bien la zone de raccordement (11) que, dans la zone de contact (12), la pièce femelle (23), et est fabriquée en un matériau en bande à élasticité permanente et électriquement conducteur, et d'une enveloppe sous la forme d'une douille de protection (4) qui est emmanchée par-dessus la zone de contact (12) de cet élément de contact (2) et est réalisée en un matériau résistant à la corrosion et d'une résistance élevée, et la pièce femelle (23) de l'élément de contact (2) présentant à chacune des deux extrémités de la zone de contact (12), une nervure de liaison périphérique intérieure et extérieure (24 respectivement 25),
    caractérisée en ce que la pièce femelle (23) présente une torsion permanente dans la direction périphérique, et comporte des lamelles (26) s'étendant parallèlement à l'axe avant la torsion, et en ce que la douille de protection (4) est réalisée en tant que tube cylindrique à paroi mince comparativement à l'épaisseur de l'élément de contact (2), qui à son extrémité intérieure à paroi plus épaisse, s'appuie par un ajustement serré sur la périphérie de la nervure de liaison intérieure (24), mais présente toutefois du jeu par rapport à la périphérie de la zone de la pièce femelle (23), qui s'y raccorde.
  2. Pièce de contact selon la revendication 1, caractérisée en ce que la douille de protection (4) possède, à son extrémité (42) associée à la nervure de liaison extérieure (25) un collet rabattu (43) périphérique, replié vers l'intérieur, dont le bord intérieur, dans l'état déchargé de l'élément de contact (2), se trouve à une distance de tolérance (I) prédéterminée par rapport au bord extérieur de la nervure de liaison extérieure (25).
  3. Pièce de contact selon la revendication 1 ou 2, caractérisée en ce que l'élément de contact (2) est réalisé en un matériau particulièrement bien conducteur sur le plan électrique, pouvant être aisément usiné et déformé sur le plan mécanique, et d'une élasticité permanente, notamment un alliage cuivre-étain, et la douille de protection (4) est réalisée en un matériau de grande résistance, sensiblement plus rigide comparativement à l'élément de contact (2), notamment un alliage d'acier inoxydable.
  4. Pièce de contact selon l'une des revendications 1 à 3, caractérisée en ce que dans la zone de raccordement (11) de l'élément de contact (2) est prévu un contact ou une cosse à sertir (21).
  5. Pièce de contact selon l'une des revendications 1 à 4, caractérisée en ce que la pièce femelle (23) de l'élément de contact (2) possède, sur chacune des deux nervures de liaison (24 respectivement 25), une paire d'éléments d'encliquetage (27, 27') de bordure qui forment en commun une fermeture, et sont réalisés pour chaque paire, par un tenon d'encliquetage (27) faisant saillie, transversalement à l'axe longitudinal de l'élément de contact (2), vers l'extérieur à partir d'un des bords latéraux, et respectivement par un évidemment (27') en contre-dépouille de forme correspondante sur le bord latéral opposé, et ces éléments d'encliquetage coopérant, par paire, par complémentarité de forme, dans l'état roulé de la pièce femelle (23).
  6. Pièce de contact selon la revendication 4 ou 5, caractérisée en ce que la pièce femelle (23) de l'élément de contact (2) possède sur la nervure de liaison intérieure (24), un perçage de fixation (28), notamment destiné à immobiliser de manière fiable l'élément de contact (2) pendant la torsion de la pièce femelle (23), ainsi que sur son bord extérieur situé côté enfichage, d'encoches de bordure (29) en forme de rainure, pour l'application par complémentarité de forme d'un outil de torsion.
  7. Procédé pour la fabrication d'une pièce de contact selon l'une des revendications 1 à 6, caractérisé par les étapes de procédé suivantes :
    à partir d'un matériau en bande plat, on découpe par matriçage, selon une image de découpage prescrite, les éléments de contact (2) reliés transversalement en bande, les éléments de contact étant reliés à un ruban de support (5) de bordure du matériau en bande, en y étant accrochés transversalement à son axe longitudinal, par l'intermédiaire d'une nervure de fixation (51),
    on traite la surface des éléments de contact (2) par voie électrolytique, à savoir que l'on applique notamment une couche d'accrochage en nickel et par-dessus une couche de contact en or,
    on soumet les éléments de contact (2) découpés, à un pliage dans la zone de raccordement (11), et à un roulage dans la zone de contact (12), en produisant l'encliquetage réciproque, par complémentarité de forme, des bords latéraux de la pièce femelle (23), regroupés au cours du roulage,
    on produit la torsion permanente des éléments de contact (2) dans la zone de contact (12),
    on amène à chaque élément de contact (2), dans la direction axiale, la douille de protection (4) et on l'emmanche à force par-dessus la zone de contact (12) de l'élément de contact, et
    on enroule par charges, les éléments de contact (2) toujours reliés en bande, en vue de la poursuite automatique de leur traitement.
EP01102918A 2000-02-07 2001-02-07 Pièce de contact pour une connexion électrique ainsi que son procédé de fabrication Expired - Lifetime EP1133013B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10005297A DE10005297C2 (de) 2000-02-07 2000-02-07 Kontaktstück für eine elektrische Steckverbindung sowie Verfahren zu dessen Herstellung
DE10005297 2000-02-07

Publications (3)

Publication Number Publication Date
EP1133013A2 EP1133013A2 (fr) 2001-09-12
EP1133013A3 EP1133013A3 (fr) 2002-05-22
EP1133013B1 true EP1133013B1 (fr) 2004-09-01

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EP01102918A Expired - Lifetime EP1133013B1 (fr) 2000-02-07 2001-02-07 Pièce de contact pour une connexion électrique ainsi que son procédé de fabrication

Country Status (3)

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EP (1) EP1133013B1 (fr)
AT (1) ATE275295T1 (fr)
DE (2) DE10005297C2 (fr)

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DE10235058A1 (de) * 2002-07-31 2004-02-12 Siemens Ag Leitfähiges Kontaktstück für eine lösbare elektrische Steckverbindung
DE10235053A1 (de) * 2002-07-31 2004-02-12 Siemens Ag Verfahren zur Herstellung eines Kontaktstückes
DE102004002921A1 (de) * 2003-02-21 2004-10-07 Multi-Holding Ag Bandförmiges Kontaktelement, Verfahren zu seiner Herstellung, sowie Anwendung eines solchen Kontaktelements
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CN102157820B (zh) * 2010-12-30 2016-02-24 倪泉 紧凑型插孔接触件及其制造方法
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CN107196097A (zh) * 2017-06-20 2017-09-22 马远锋 一种连续梁片簧插孔接触件及加工方法
CN107154548A (zh) * 2017-06-20 2017-09-12 马远锋 一种半封闭片簧插孔接触件及加工方法
CN109742578A (zh) * 2019-03-04 2019-05-10 安费诺科技(深圳)有限公司 一种螺旋型插孔连接件
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Also Published As

Publication number Publication date
DE50103435D1 (de) 2004-10-07
EP1133013A3 (fr) 2002-05-22
DE10005297A1 (de) 2001-08-16
DE10005297C2 (de) 2001-12-20
ATE275295T1 (de) 2004-09-15
EP1133013A2 (fr) 2001-09-12

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