WO1996032756A1 - Ressort de contact - Google Patents

Ressort de contact Download PDF

Info

Publication number
WO1996032756A1
WO1996032756A1 PCT/DE1996/000518 DE9600518W WO9632756A1 WO 1996032756 A1 WO1996032756 A1 WO 1996032756A1 DE 9600518 W DE9600518 W DE 9600518W WO 9632756 A1 WO9632756 A1 WO 9632756A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
contact spring
contact
wall
ceiling wall
Prior art date
Application number
PCT/DE1996/000518
Other languages
German (de)
English (en)
Inventor
Ernst Liebich
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE59603027T priority Critical patent/DE59603027D1/de
Priority to EP96906700A priority patent/EP0871993B1/fr
Publication of WO1996032756A1 publication Critical patent/WO1996032756A1/fr

Links

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
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section

Definitions

  • the invention relates to a contact spring with two spring arms and a connecting part integrally connected to the spring arms opposite the plug side for connecting an electrical conductor, as well as with a locking device for primary latching of the contact spring within an associated housing opening of the contact spring.
  • Such contact springs are described for example in DE 3 248 078 C2 and DE-GM 9 202 365.7.
  • These contact springs which are used, for example, on a large scale as connectors in automotive engineering, have two parts to be manufactured separately from one another, namely a base spring and an over-spring to be put over the base spring or also called a locking sleeve.
  • the base spring has two spring arms on its end facing the plug-in side of the contact spring, on the end of which is remote from the plug-in side of the contact spring, a connecting part for an electrical conductor is integrally formed.
  • the base spring is preferably a stamped and bent part and exists because of the necessary good electrical. Properties - preferably made of galvanized brass, interest-bearing copper or so-called spring bronze.
  • the over-spring to be put over the Grundfe ⁇ er essentially has the function of increasing the spring force of the contact spring and by means of the formation r. with one or more locking tongues a releasable lock. r. ⁇ of the contact spring in a contact chamber of a housing
  • the releasable locking of the contact spring by such locking tongues is also referred to as primary locking.
  • the spring is usually made of a material with good spring properties and can also be manufactured as a stamped and bent part. Sheet metal, for example, is suitable as the material.
  • Contact springs with the two elements base spring and over-spring to be manufactured separately have the disadvantage that a relatively high effort has to be made to secure the over-spring against slipping on the base spring.
  • the known contact springs with a base spring and an overlaid spring are characterized by a relatively high cost of materials and assembly.
  • an over-spring placed over the base spring offers the advantage of secure primary locking, since in the over-spring itself, suitable locking elements, for example on the side walls lying parallel to the levels of the spring arms, B. in the form of locking tongues can be incorporated to ensure a secure locking of the contact spring within an associated housing opening.
  • the present invention is based on the object of specifying a contact spring which can be produced with considerably less effort than the previously known contact springs and which nevertheless allows the primary spring to be securely latched within an associated housing opening.
  • the invention is essentially based on the fact that the spring arms, the connecting part and the latching device of the contact springs are connected to one another in one piece.
  • the contact spring in the area of the spring arms has a cross-section that is orthogonal to the longitudinal axis X and is at least approximately G-shaped with a first top wall and a bottom wall, each of which faces in front
  • One of the two spring arms extends towards the plug side of the contact spring.
  • the first top wall and the bottom wall are connected to a side wall, one
  • the second side wall running parallel to the first side wall and connected to the bottom wall extends beyond the first top wall.
  • a second top wall, parallel to the first top wall, is formed, in which at least one locking element for primary locking of the contact springs is arranged.
  • the latching element provided for the primary latching lies in an additional one
  • the contact spring according to the invention saves a considerable amount of material compared to the conventional contact springs with a base spring and a spring.
  • the latching element arranged in the second ceiling wall is expediently designed as a latching tongue which runs along the longitudinal axis X and which, in the direction of the connecting part, is folded out of the second ceiling wall.
  • a latching tongue With such a latching tongue, the contact spring can run well into an associated housing opening and engage there in a corresponding recess of the inserted contact spring. An accidental pulling out of the contact spring from the opening is possible thanks to the ben in this housing opening protruding locking tongue no longer possible.
  • This latching tongue facing away from the spring arms is preferably provided with an expression.
  • Such a configuration on the latching tongue prevents the front edge of the latching tongue from getting caught on the contact chamber wall of the associated housing when the contact spring is removed from the contact chamber of an associated housing.
  • the two side walls and the second top wall extend at least approximately to the contact zone or to the spring inlet of the contact spring.
  • at least one of the two side walls may extend beyond the front end of the spring arms, as a result of which a stop surface of the contact spring is provided on the front boundary of the corresponding side wall. This prevents the spring arms from being accidentally bent when the contact spring is handled improperly, and thus no longer ensures that an associated contact pin runs in securely.
  • a spacer flap is formed on one of the two spring arms, but preferably two such spacer flaps are formed on each side of this spring arm, this or these spacer flaps being supported on the opposite spring arm.
  • the arrangement of the spacer tabs on the spring arm, preferably on both sides, ensures that the spring arms are supported in parallel on the contact pin.
  • At least one of the two side walls with a contact surface which extends over the outer contour of the base formed on the bottom wall. derarmes extends. Both side walls are preferably provided with such a contact surface to protect the lower spring arm.
  • the second top wall has a recess on the corner facing the plug-in side of the contact spring, into which the first side wall below engages.
  • the free edge of the second ceiling wall is provided with at least one recess into which the edge of the first side wall connected to the first ceiling wall engages with a correspondingly projecting section.
  • a recess or a projecting section can be provided on the edge of the second ceiling wall or the first side wall facing the connecting part.
  • FIG. 1 shows a first exemplary embodiment of a contact spring according to the invention in four different perspective views
  • FIG. 2 shows a sectional illustration of the contact spring shown in FIG. 1 along the sectional plane S there,
  • FIG. 3 shows a further exemplary embodiment of a contact spring with a partial representation of the first side wall and second ceiling wall used there,
  • Figure 4 shows another embodiment of a contact part of a contact spring according to the invention in four different perspective views
  • Figure 5 shows another variant of a contact spring according to the Invention with a partial representation of the side walls projecting beyond the front ends of the spring arms.
  • FIG. 1 shows a first exemplary embodiment of a contact spring according to the invention in four different perspective views, namely diagonally from the top right and diagonally from the top left, and diagonally from the bottom right and diagonally from the bottom left.
  • the contact spring has a spring contact part 1 with spring arms 3, 4 and a connecting part 2 integrally connected to the spring arms 3, 4 opposite the plug side of the contact spring for connecting an electrical conductor.
  • this connector 2 is designed as an IDC connector, which is known as such.
  • any other connector parts e.g. B. a crimp connection, an insulation displacement connection, a double insulation displacement connection or the like can be provided. All that is essential is the one-piece connection of this connection part 2 to the spring contact part 1.
  • the spring contact part 1 has an at least approximately G-shaped cross section lying orthogonally to the longitudinal axis X in the region of the spring arms 3, 4.
  • FIG. 2 shows the cross section of the contact spring along the sectional plane S shown in FIG.
  • the contact spring has a first top wall 10 and a bottom wall 12, of which one of the two spring arms 3, 4 extends away from the end in the direction of the plug-in side of the contact spring.
  • the spring arms 3, 4 - starting from the connecting part 2 - initially run towards one another up to a contact zone 7, at which the one spring arm 4 is connected to a longitudinal edge with a Direction on the other spring leg 3 ripped out spacer 5 is formed as a spring opening contour.
  • the spring arm 4 is formed on both sides at its edges with such spacer tabs 5, 6, which are supported in the region of the contact zone 7 on the opposite spring arm 3.
  • the spring arms 3, 4 diverge from this contact zone 7 in a funnel shape.
  • the front ends of the spring arms 3, 4 are identified by the reference numerals 3a and 4a.
  • the box-shaped spring contact part 1 is provided with a first side wall 11, which connects the first top wall 10 and the bottom wall 12 to one another.
  • this first side wall 11 connects the right-hand edges of the first ceiling wall 10 and the bottom wall 12.
  • a second side wall 13 adjoins the edge of the bottom wall 12 opposite the first side wall 11, which starts from the bottom wall 12 extends upwards and parallel to the first side wall 11.
  • the second side wall 13 projects beyond the first ceiling wall 10 and is connected at the end to a second ceiling wall 14 running parallel to the first ceiling wall 10.
  • the second ceiling wall 14 is so wide that it extends approximately to the upper edge of the first ceiling wall 11.
  • the free edge of the second ceiling wall 14 is flush with the outer surface of the first side wall 11.
  • a U-shaped incision is arranged in the second top wall 14, the two longitudinal legs of which run parallel to the longitudinal axis X of the contact spring and are arranged approximately equally spaced from the center axis of the second top wall 14. From this U-shaped incision, a latching tongue 17 is bent out as a latching element along the bending line 22 shown in FIG. 1 in such a way that the front edge 17a is lifted off the surface of the second ceiling wall 14 and points in the direction of the connecting part 2. On the surface of the latching tongue 17 facing away from the spring arms 3, 4, an expression 18 is arranged which prevents that the latching tongue 17 hooks with its front edge 17a on the contact chamber wall when the contact is removed, that is when the contact spring is pulled out of an associated contact chamber.
  • the ends of the first side wall 11, the second side wall 13 and the second top wall 14 facing towards the plug side are approximately flush with one another and project up to approximately the area of the spring arms 3, 4 , in which the spacer tabs 5, 6 of the spring arm 4 abut the opposite spring arm 3.
  • the first side wall 11 and the second side wall 13 are each with
  • the second top wall 14 lies with its free edge 14 a on the edge 11 a of the first side wall 11 connected to the first top wall 10, in such a way that the free edge 14 a is approximately flush with the outer surface of the first Completes side wall 11.
  • the second top wall 14 has at its front corner or its edge facing the plug-in side a rectangular recess 21 into which the underlying side wall 11 engages with a projecting section 20.
  • the recess 21 of the second ceiling wall 14 is formed in that the free edge 14a of the second ceiling wall 14 springs back in an L-shape on its side facing the plug-in side of the contact spring. In these Recess 21 engages with a rectangular projecting section 20 of the side wall 11, so that the second top wall 14 and the first side wall 11 abut one another in a wedging manner.
  • the first side wall 11 can be provided with a projecting section 20, both at its end facing the plug-in side of the contact spring and at the end facing the connecting part 2, which in FIG hearing recesses of the second top wall 14 engages.
  • the contact spring is provided in the second top wall 14 of the contact spring with a preferably L-shaped recess 21, in which the two projecting sections 20 of the first side wall 11 engage, both on the edge pointing towards the plug-in side and towards the connection part 2 .
  • FIG. 4 shows another exemplary embodiment of a contact spring on the basis of the contact part 1, which is only shown for the sake of clarity, at least one of the two side walls, here the first side wall 11, can extend beyond the front end 3 a, 4 a of the spring arms 3, 4 extend out.
  • End face 11 b thus forms a stop surface of the contact spring in an associated contact chamber of the contact eder.
  • both side walls 11, 13 of the contact spring can also protrude beyond the ends 3 a, 4 a of the spring arms 3, 4 on the inside.
  • Forehead- Page 14 b of the second ceiling wall 14 can, but need not, be set back in the direction of the connection part 2 of the contact spring behind the end faces 11 b and 13 b of the first side wall 11 and second side wall 13.
  • the effective stop surface of the contact spring within an associated contact chamber is increased and thus a greater greater strength of the contact spring is achieved.
  • the spring arms 3, 4, which are set back behind the end faces 11b and 13b are effectively protected against damage, such as, for example, unwanted bending.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

Ressort de contact présentant deux bras élastiques (3, 4), un élément de connexion (2) et un dispositif à encliquetage (17) assemblés entre eux en une seule pièce. Dans la zone des bras élastiques (3, 4), le ressort de contact présente une section transversale au moins approximativement en forme de 'G', avec une première paroi de recouvrement (10) et une paroi de base (12), l'un des deux bras (3, 4) s'étendant dans la direction de la connexion à partir de l'extrémité de chacune de ces parois. La paroi de recouvrement (10) et la paroi de base (12) sont reliées l'une à l'autre par une première paroi latérale. Une deuxième paroi latérale (11) reliée à la paroi de base (12) s'étend au-delà de la première paroi de recouvrement (10) et est reliée à une deuxième paroi de recouvrement s'étendant parallèlement à la première, et dans laquelle est enfoncé un élément à encliquetage pour le verrouillage primaire.
PCT/DE1996/000518 1995-04-10 1996-03-26 Ressort de contact WO1996032756A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59603027T DE59603027D1 (de) 1995-04-10 1996-03-26 Kontaktfeder
EP96906700A EP0871993B1 (fr) 1995-04-10 1996-03-26 Ressort de contact

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19513580A DE19513580C2 (de) 1995-04-10 1995-04-10 Kontaktfeder
DE19513580.6 1995-04-10

Publications (1)

Publication Number Publication Date
WO1996032756A1 true WO1996032756A1 (fr) 1996-10-17

Family

ID=7759397

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/000518 WO1996032756A1 (fr) 1995-04-10 1996-03-26 Ressort de contact

Country Status (4)

Country Link
EP (1) EP0871993B1 (fr)
DE (2) DE19513580C2 (fr)
ES (1) ES2137674T3 (fr)
WO (1) WO1996032756A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426320A (en) * 1966-09-30 1969-02-04 Amp Inc Electrical connector receptacle
US3836947A (en) * 1973-02-23 1974-09-17 Amp Inc Electrical contact receptacle with helper spring
DE3636711A1 (de) * 1986-10-28 1988-05-05 Siemens Ag Steckkontaktfeder
FR2627020A1 (fr) * 1988-02-08 1989-08-11 Amp France Contact electrique destine a recevoir une patte complementaire de connexion
EP0608865A2 (fr) * 1993-01-27 1994-08-03 The Whitaker Corporation Borne électrique avec moyen pour éviter les dommages aux languettes de verrouillage et les enchevêtrements
EP0618644A2 (fr) * 1993-03-30 1994-10-05 General Motors Corporation Douille de connexion électrique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8236405U1 (de) * 1982-12-24 1984-10-04 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Doppelflachfederkontakt mit Überfeder
DE3424072A1 (de) * 1984-06-29 1986-01-09 Grote & Hartmann Steckverbinder
DE9201047U1 (de) * 1992-01-29 1993-06-03 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Doppelflachfederkontakt mit Außenüberfeder
DE9202365U1 (de) * 1992-02-24 1993-06-17 Siemens Ag, 8000 Muenchen Kontaktfeder mit Rasthülse

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426320A (en) * 1966-09-30 1969-02-04 Amp Inc Electrical connector receptacle
US3836947A (en) * 1973-02-23 1974-09-17 Amp Inc Electrical contact receptacle with helper spring
DE3636711A1 (de) * 1986-10-28 1988-05-05 Siemens Ag Steckkontaktfeder
FR2627020A1 (fr) * 1988-02-08 1989-08-11 Amp France Contact electrique destine a recevoir une patte complementaire de connexion
EP0608865A2 (fr) * 1993-01-27 1994-08-03 The Whitaker Corporation Borne électrique avec moyen pour éviter les dommages aux languettes de verrouillage et les enchevêtrements
EP0618644A2 (fr) * 1993-03-30 1994-10-05 General Motors Corporation Douille de connexion électrique

Also Published As

Publication number Publication date
EP0871993B1 (fr) 1999-09-08
ES2137674T3 (es) 1999-12-16
DE59603027D1 (de) 1999-10-14
DE19513580C2 (de) 1997-09-18
EP0871993A1 (fr) 1998-10-21
DE19513580A1 (de) 1996-10-24

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