EP1764874B1 - Connecteur électrique avec lame de contact précontraint - Google Patents

Connecteur électrique avec lame de contact précontraint Download PDF

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Publication number
EP1764874B1
EP1764874B1 EP20060120029 EP06120029A EP1764874B1 EP 1764874 B1 EP1764874 B1 EP 1764874B1 EP 20060120029 EP20060120029 EP 20060120029 EP 06120029 A EP06120029 A EP 06120029A EP 1764874 B1 EP1764874 B1 EP 1764874B1
Authority
EP
European Patent Office
Prior art keywords
contact
pressure spring
wall
contact pin
plug connector
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 - Fee Related
Application number
EP20060120029
Other languages
German (de)
English (en)
Other versions
EP1764874A3 (fr
EP1764874A2 (fr
Inventor
Eckhardt Philipp
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1764874A2 publication Critical patent/EP1764874A2/fr
Publication of EP1764874A3 publication Critical patent/EP1764874A3/fr
Application granted granted Critical
Publication of EP1764874B1 publication Critical patent/EP1764874B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • 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
    • H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
    • 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
    • H01R13/114—Resilient sockets co-operating with pins or blades having a square transverse section

Definitions

  • contact systems are known in the automotive industry, in which contact blades are ready in a biased state for the connection to a contact pin. This bias is achieved in that the contact blades are deliberately bent back elastically from a first over-arched state and are supported in this new position by rigid abutment on a Stahlüberfeder.
  • the abutments for the prestressing are rigid elements of the steel coil spring, which limit the spring movement of the contact blades on one side, even when plugged in. Due to the tight tolerances of such spring systems there is a risk that the contact force is not fully achieved, or that the contact pin is contacted only on one side.
  • JP 06052918 discloses an electrical connector according to the preamble of claim 1.
  • the connector according to the invention with a prestressed pressure spring with the features of claim 1 has the advantage that a contact system is created in which the contact normal force is effective only when the contact pin is already far beyond the fixed contact point (contact tip) inserted into the connector.
  • a connector 1 has a housing 3 in the form of a box construction.
  • a crimping area 4 serves to connect a cable.
  • a first wall 5 of the connector 1 has an inwardly directed stationary contact point 7 , which is formed as an impressed contact tip (referred to here as primary contact tip).
  • the first wall 5 is parallel to a second wall 9 at a distance, which are connected to the first wall 5 by side walls 11 and 13 .
  • the housing 3 carries power in use and is made of metal, it has been produced by punching and bending. A still remaining longitudinal joint can be closed if necessary by welding.
  • Inside the housing 3 is a displaceable, substantially L-shaped pressure spring 15 with a long leg 17 and a short leg 19 of the contact point 7 arranged opposite.
  • the long leg 17 is in its central region inwardly bent (in the direction of the first wall 5 and to be inserted through an insertion 20 contact pin 21 with a pin tip 22 out) arched bent.
  • the pressure spring 15 is in an in Fig. 1 shown initial state locked in a biased position. In this case, the long leg 17 is flat and is located on the second wall 9 at.
  • the latching position is such that the distance (ie the contact gap) between the contact point 7 and a contact surface 21 (secondary tip) 23 intended for contact with the contact pin 21 (FIG. Fig. 2 ) of the pressure spring 15 is large enough so that the contact pin 21 can be inserted without force with its tapered pin tip 22 far beyond the contact point 7 on the first wall 5 also in the connector 1.
  • the L-shaped pressure spring 15 z.
  • a straight leaf spring which is deformed bulging in the central region by pre-bending in one direction and which has a suitable projection for the contact pin, may be provided.
  • the pressure spring 15 is made in the example of steel. Since it abuts the second wall 9, it can transmit a portion of the current from and to the contact pin 21. The main part of the current flows through the contact point 7.
  • the power line can be influenced by good conductive metal coatings, preferably gold, at the contact point 7 and / or on the pressure spring 15.
  • Fig. 1 is the short leg 19 approximately at right angles to the long leg 17 and protrudes in the insertion direction of the contact pin 21 at a greater distance (at least greater than the length of the pin tip 22) behind the contact point 7 in the path of the pin tip 22. If this further insertion of the Contact pins on the short leg 19 meets, it moves the pressure spring 15 from the latched position further into the interior of the housing. 3
  • Fig. 2 has the pressure spring 15 left in this process, the locked position and reached a vacant position. In this way, the prestressed area of the long leg 17 is released, whereby it can deflect inwards. As a result, the pressure surface 23 of the inner Supporting pressure spring 15 on the contact surface of the contact pin 21. Due to the equilibrium of forces, which now sets between the support points of the pressure spring 15 on the inside of the box construction, the pressure surface 23 of the inner pressure spring 15, the contact pin 21 and the contact point 7 (Primärizokuppe), on the one hand, the contact pin 21 is pressed onto the contact point 7 and on the other hand, the connector 1 aligned over the contact pin 21.
  • the contact pin 21 has a round cross section in the example, therefore, the cross section of the connector 1 is approximately square. He is z. B. suitable for connection to interfaces in the automotive sector. If necessary, the connector can be easily redesigned for use with a flat contact pin.
  • lateral projections 27 are present in the embodiment for locking on the pressure spring, which act together with latching and guide surfaces depending on the displacement position of the pressure spring 15. Also, a single projection 27 may suffice. Preferably, narrow tabs are present as projections 27 at the highest point of the bulge on both sides. Then, the position of the pressure surface 23 in terms of their distance from the first wall 5 corresponds exactly to the corresponding distance of the projections 27th
  • Fig. 4 the said locking and guiding surfaces are clearly shown. They are edges of so-called latching windows 29 of the side walls 11, 13 of the housing 3, in which the projections 27 protrude.
  • the latching windows 29 are designed in a region such that the narrow lateral projections 27 of the pressure spring 15 can latch there and can hold down the bulge in a prestressed position. This is a slightly undercut locking surface 31. In this way, a large contact gap between the bulge of the pressure spring 15 and the contact point 7 can be adjusted.
  • the long leg 17 of the pressure spring 15 is supported on the inside of the second wall 9 of the box construction slidably mounted.
  • the direction of the view of Fig. 4 agrees with the Fig. 1 and 2 match.
  • the lateral projection 27 is supported on the latching surface 31 and is therefore not only by Friction, but also positively held.
  • the projection 27 can be moved upon impact of the contact pin 21 on the short leg 19 of the locking thus formed and a subsequent slope 33 with a force that is significantly smaller than the high force of a Aufschnäbel-peak known connectors.
  • the pressure spring 15 can apply the contact normal force completely unhindered in the work area. This condition is in Fig. 2 shown.
  • the projection 27 is still at a distance from the underside 35 of the latching window 29. Due to the design of the latching surfaces and the sliding slopes of the latching window 29, a force increase in the height of the known Aufschnäbel peaks is significantly below.
  • the slope 33 is simplified as straight. However, the slope can actually be provided running straight.
  • Fig. 5 shows the state when after the described first plug-in operation, the contact pin 21 has been pulled out of the connector 1 out.
  • the pressure surface 23 has moved further in the direction of the first wall 5 until the projection 27 comes to rest on the underside 35 of the latching window 29.
  • the arrangement is such that in this state, the pressure spring 15 is not completely relaxed. Through the bottom 35, the insertion of the contact pin 21 at a Zweitsteckung (the pressure spring 15 is not locked by the locking surface 31) is facilitated.
  • Fig. 6 shows that for the preparation of the contact point 7 in the wall 5, two parallel longitudinal cuts 37 of limited length are present. An intermediate wall portion 39 has been bulged inwardly to form the pad 7.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (7)

  1. Connecteur électrique (1) destiné à être enfiché sur une broche de contact (21) en vue d'une connexion électrique, le connecteur (1) présentant un boîtier (3) en métal avec une première paroi (5) et une deuxième paroi (9) en regard et à distance de celle-ci, lesquelles s'étendent parallèlement au mouvement de déplacement par rapport à la broche de contact (21), et comprenant des parois latérales (11, 13) reliant l'une à l'autre les deux parois (5, 9), un point de contact fixe (7) saillant vers l'intérieur étant disposé à l'intérieur sur la première paroi (5) et un ressort de pression (15) déplaçable parallèlement au mouvement de déplacement étant disposé à côté de la deuxième paroi (9), caractérisé en ce que le ressort de pression présente une surface de pression (23) prévue pour l'appui contre la broche de contact (21) à introduire à travers une ouverture d'enfichage (20) du connecteur (1), et est précintré dans la région de la surface de pression (23) dans la direction de la première paroi (5) dans un état non tendu, le ressort de pression (15), dans un état de départ prêt à l'enfichage sans friction de la broche de contact (21), étant déformé élastiquement à l'encontre de l'état précintré et étant maintenu encliqueté de telle sorte qu'entre le point de contact fixe (7) et la surface de pression (23) existe une distance transversalement à la direction de déplacement, laquelle permet un enfoncement sans friction de la broche de contact (21) à contacter, et le ressort de pression (15), vu depuis l'ouverture d'enfichage (20), présentant derrière la surface de pression (23) une saillie pénétrant dans le trajet de la broche de contact (21), le ressort de pression (15) pouvant être désencliqueté de son encliquetage par contact de la broche de contact (21) avec la saillie, de telle sorte que la surface d'appui (23) vienne en appui contre la broche de contact (21).
  2. Connecteur selon la revendication 1, caractérisé en ce que le ressort de pression (15) est coudé en forme de L et présente une branche longue (17), qui présente dans une région longitudinale centrale la surface de pression (23), ainsi qu'une branche courte (19), qui forme la saillie pénétrant dans le trajet de la broche de contact (21).
  3. Connecteur selon la revendication 1 ou 2, caractérisé en ce qu'au moins une saillie (27) est disposée sur le ressort de pression (15), laquelle vient en prise dans une fenêtre d'encliquetage (29) dans la paroi latérale (11, 13), laquelle fenêtre d'encliquetage présente une surface d'encliquetage (31).
  4. Connecteur selon la revendication 3, caractérisé en ce qu'un biseau (33) est prévu sur la surface d'encliquetage (31) pour le rapprochement progressif de la surface de pression (23) de la broche de contact (21) lors du déplacement du ressort de pression (15) dans la direction d'enfichage de la broche de contact (21).
  5. Connecteur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu une limitation de la détente élastique du ressort de pression (15) dans la position de déplacement prévue pour le contact de la broche de contact (21).
  6. Connecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le ressort de pression (15) se compose au moins en partie d'acier.
  7. Connecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le ressort de pression (15) présente, sur la surface de pression (23) et/ou sur une surface s'appuyant contre la deuxième paroi (9), un matériau bon conducteur électrique.
EP20060120029 2005-09-14 2006-09-04 Connecteur électrique avec lame de contact précontraint Expired - Fee Related EP1764874B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510043693 DE102005043693A1 (de) 2005-09-14 2005-09-14 Elektrischer Steckverbinder mit einer vorgespannten Kontaktlamelle

Publications (3)

Publication Number Publication Date
EP1764874A2 EP1764874A2 (fr) 2007-03-21
EP1764874A3 EP1764874A3 (fr) 2011-05-25
EP1764874B1 true EP1764874B1 (fr) 2012-08-15

Family

ID=37526954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060120029 Expired - Fee Related EP1764874B1 (fr) 2005-09-14 2006-09-04 Connecteur électrique avec lame de contact précontraint

Country Status (2)

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EP (1) EP1764874B1 (fr)
DE (1) DE102005043693A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019210695B3 (de) * 2019-07-19 2020-10-08 Robert Bosch Gmbh Kontaktelement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012002145A1 (de) 2012-02-04 2013-08-08 Kostal Kontakt Systeme Gmbh Hülsenkontakt für einen elektrischen Nullkraftsteckverbinder
DE102018207068A1 (de) * 2018-05-07 2019-11-07 Volkswagen Aktiengesellschaft Autoarretierung und Autokontaktierung von Kontakten einer Stecker-Buchsen-Verbindung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0652918A (ja) * 1992-07-29 1994-02-25 Amp Japan Ltd 電気接触子
JP3242843B2 (ja) * 1996-07-10 2001-12-25 矢崎総業株式会社 二部品構成の突き合わせ端子

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019210695B3 (de) * 2019-07-19 2020-10-08 Robert Bosch Gmbh Kontaktelement

Also Published As

Publication number Publication date
EP1764874A3 (fr) 2011-05-25
DE102005043693A1 (de) 2007-03-15
EP1764874A2 (fr) 2007-03-21

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