EP1764874A2 - Connecteur électrique avec lame de contact précontraint - Google Patents

Connecteur électrique avec lame de contact précontraint Download PDF

Info

Publication number
EP1764874A2
EP1764874A2 EP06120029A EP06120029A EP1764874A2 EP 1764874 A2 EP1764874 A2 EP 1764874A2 EP 06120029 A EP06120029 A EP 06120029A EP 06120029 A EP06120029 A EP 06120029A EP 1764874 A2 EP1764874 A2 EP 1764874A2
Authority
EP
European Patent Office
Prior art keywords
contact pin
pressure spring
wall
contact
pressure
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.)
Granted
Application number
EP06120029A
Other languages
German (de)
English (en)
Other versions
EP1764874A3 (fr
EP1764874B1 (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.
  • 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 well above the fixed contact point (contact tip) inserted into the connector.
  • a connector 1 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.
  • a displaceable, substantially L-shaped pressure spring 15 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 locked in a starting state shown in Fig. 1 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 Druckgap) between the contact point 7 and intended to rest on the contact pin 21 pressure surface (secondary dome) 23 (Fig. 2) of the pressure spring 15 is large enough so that the contact pin 21 force-free tapered with its Pin tip 22 can be inserted far beyond the contact point 7 on the first wall 5 out 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.
  • the short leg 19 is 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 encounters the further insertion of the contact pins on the short leg 19, it moves the pressure spring 15 from the latched position further into the interior of the housing. 3
  • 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 to 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 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 is consistent with Figs.
  • 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 when hitting the contact pin 21 on the short leg 19 from 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 shown in FIG.
  • 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. this lying at the same height with the projection 27 pressure surface 23.
  • the slope 33 is simplified as straight. However, the slope can actually be provided running straight.
  • Fig. 5 shows the state when after the first plug-in operation described 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)
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 true EP1764874A2 (fr) 2007-03-21
EP1764874A3 EP1764874A3 (fr) 2011-05-25
EP1764874B1 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)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013113886A1 (fr) * 2012-02-04 2013-08-08 Kostal Kontakt Systeme Gmbh Contact femelle pour connecteur électrique à force d'insertion nulle
DE102018207068A1 (de) * 2018-05-07 2019-11-07 Volkswagen Aktiengesellschaft Autoarretierung und Autokontaktierung von Kontakten einer Stecker-Buchsen-Verbindung

Families Citing this family (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

Citations (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
DE19729406A1 (de) * 1996-07-10 1998-01-22 Yazaki Corp Steckverbinder mit zweiteiligem Aufbau

Patent Citations (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
DE19729406A1 (de) * 1996-07-10 1998-01-22 Yazaki Corp Steckverbinder mit zweiteiligem Aufbau

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013113886A1 (fr) * 2012-02-04 2013-08-08 Kostal Kontakt Systeme Gmbh Contact femelle pour connecteur électrique à force d'insertion nulle
US9160082B2 (en) 2012-02-04 2015-10-13 Kostal Kontakt Systeme Gmbh Sleeve contact for an electrical zero-force plug-type connector
DE102018207068A1 (de) * 2018-05-07 2019-11-07 Volkswagen Aktiengesellschaft Autoarretierung und Autokontaktierung von Kontakten einer Stecker-Buchsen-Verbindung

Also Published As

Publication number Publication date
EP1764874A3 (fr) 2011-05-25
DE102005043693A1 (de) 2007-03-15
EP1764874B1 (fr) 2012-08-15

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