EP0234367A2 - Contact élastique pour bloc de connexion électrique - Google Patents

Contact élastique pour bloc de connexion électrique Download PDF

Info

Publication number
EP0234367A2
EP0234367A2 EP87101661A EP87101661A EP0234367A2 EP 0234367 A2 EP0234367 A2 EP 0234367A2 EP 87101661 A EP87101661 A EP 87101661A EP 87101661 A EP87101661 A EP 87101661A EP 0234367 A2 EP0234367 A2 EP 0234367A2
Authority
EP
European Patent Office
Prior art keywords
contact spring
spring according
lugs
contact
shaped
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
EP87101661A
Other languages
German (de)
English (en)
Other versions
EP0234367A3 (en
EP0234367B1 (fr
Inventor
Peter Seidel
Leo Ing. Pelz (Grad.)
Karl. Dipl.-Ing Zell (Fh)
Günter Dipl.-Ing Thom (FH)
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Priority to AT87101661T priority Critical patent/ATE91047T1/de
Publication of EP0234367A2 publication Critical patent/EP0234367A2/fr
Publication of EP0234367A3 publication Critical patent/EP0234367A3/de
Application granted granted Critical
Publication of EP0234367B1 publication Critical patent/EP0234367B1/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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board

Definitions

  • the invention relates to a contact spring for an electrical connector strip with a connecting part serving for the electrical connection to a circuit board connected to the connector strip.
  • Contact springs are known for electrical connector strips, which have a connector part consisting of a connecting lug, which makes the electrical contact with a printed circuit board connected to the connector strip.
  • Currents flowing through such contact springs are directed to only one connection point of the circuit board.
  • partial currents must be conducted to different connection points of the printed circuit board in certain applications.
  • this is then done by appropriately shaping conductor tracks on the printed circuit board, it is associated with the disadvantage of consuming space on the printed circuit board. Otherwise, mechanical damage to the connection lug can cause the electrical resistance of the current path to rise considerably and trigger further damage to the connection lug and malfunctions or even the failure of connected electrical circuit parts.
  • the invention has for its object to provide a suitable contact spring for higher currents.
  • the connecting part at least two in one correspondie rende receiving opening of the circuit board includes press-in or solderable, the current distribution serving lugs.
  • the invention is associated with the advantage that in order to form partial currents from a relatively high total current to be conducted by a contact spring, no special conductor tracks have to be provided on the circuit board. If, on the other hand, the partial currents carried separately on the printed circuit board are combined to form a total current, mechanical damage to one of several connecting lugs has less of an effect than mechanical damage which occurs on the single connecting lug of a contact spring.
  • the contact spring shown in FIG 1 for an electrical connector strip has three symmetrical connection lugs 1 arranged to the insertion axis of a contact pin to be inserted.
  • the connection lugs 1 in their entirety form the connection part serving for the electrical connection to a printed circuit board connected to the connector strip.
  • Connector strip and circuit board are not shown in the figures.
  • the connecting part of the contact spring according to the invention can have at least two connecting lugs 1 which can be pressed or soldered into a corresponding receiving opening in the printed circuit board and which serve for current distribution.
  • the contact spring is preferably formed as a one-piece body, on the side facing away from the insertion opening, the connection lugs 1 are arranged. They are described as detailed below, when using the press-in technique they are bent into a 2-V shape in their press-in area in order to enable the press-fitting into a corresponding circuit board receiving opening with only a small press-in force and to ensure reliable contacting.
  • the two side legs 3 and 4 forming the V-shaped region run obliquely towards one another towards the free end of each connecting lugs 1.
  • the contact spring can be shaped in different ways on its part facing a contact pin to be inserted.
  • This part of the contact spring can consist of two spring legs 5 arranged symmetrically to the insertion axis, the shape of which is shown in FIGS. 1, 2 and 3.
  • the spring legs 5 have on their underside centering lugs 6, on which the centering web rests with pre-tension in the installed state, as a result of which the spring is pre-opened to reduce the insertion force and is protected against insertion.
  • the contact spring has a resilient web 7 in the region of the insertion opening, which web is inserted into a correspondingly shaped slot in order to mount the contact spring in the connector strip.
  • At least one dome-shaped latching element 8 presses against the contact spring receiving opening in the connector strip.
  • the contact spring is shaped on its part facing a contact pin to be inserted such that its electrical resistance corresponds to the electrical resistance of the connecting part.
  • the contact spring consists only of a material such as copper, or if it consists at least in its current-carrying area of the same material or of different materials of the same electrical conductivity, the electrical resistance of the contact spring part facing a contact pin to be inserted and the connection part only depend on the formation of the two parts.
  • the electrical resistance depends on the shape of the surface of the current-carrying contact spring parts.
  • connection lugs 1 serve to distribute the current supplied by the contact pin and the part of the contact spring facing it. A partial flow of the total flow flows through each connecting lug 1. The partial currents are led via the connection lug 1 into corresponding metallized receiving openings on the printed circuit board, from where the partial currents can be fed to the intended current-consuming circuit parts on separate conductor tracks. However, individual conductor tracks can also be merged immediately in order to link several partial streams.
  • the press-in area 2 of the connecting lug 1 which can be V-shaped, for example, is formed by two side legs 3 and 4. Towards the free end of the connecting lug 1, the press-in region 2 is delimited by the side legs 3 and 4 which run obliquely towards one another.
  • the V-shaped fitting area is limited by collar-shaped widenings.
  • the collar-shaped widenings are used to attach a press-in tool.
  • the outer edges of the two side legs 3 and 4 of the connecting lug 1 are rounded.
  • the side legs 3 and 4 tapering towards one another towards the free end of the terminal lug 1 form a substantially rounded tip which, when the terminal lug 1 is inserted into the circuit board receiving opening, strikes the opening in the center. This ensures that the terminal lugs 1 can slide precisely and gently into the corresponding openings, thereby avoiding unnecessary chip removal from the metallized reveal of the receiving opening arranged in the printed circuit board.
  • FIG. 2 shows a top view of the contact spring with a total of six connecting lugs 1, each having side legs 3 and 4, with spring legs 5, a fastening element 7 designed as a resilient web and two latching elements 8, which have a circular base in the form of a dome.
  • the spring legs 5 shown in FIG. 2 run conically towards the insertion opening and have, at their insertion opening directly facing part, approximately semi-circular, outwardly open deformations which ensure reliable contacting of a contact pin to be inserted with the contact spring.
  • the non-numbered circular opening in the middle of the contact spring surface can be used to connect to the connector strip of the fastener, such as a screw.
  • FIG. 3 shows a view of the side of the contact spring facing a contact pin to be inserted, with connecting lugs 1, which have a press-in area 2, with spring legs 5, centering lugs 6, the resilient web 7 and with two locking elements 8 arranged symmetrically to the insertion axis 8.
  • the contact spring can be on it the insertion opening opposite side to be open to receive contact pins of different lengths.
  • the contact pins can be made longer than the corresponding contact spring.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connecting Device With Holders (AREA)
  • Multi-Conductor Connections (AREA)
EP87101661A 1986-02-26 1987-02-06 Contact élastique pour bloc de connexion électrique Expired - Lifetime EP0234367B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101661T ATE91047T1 (de) 1986-02-26 1987-02-06 Kontaktfeder fuer eine elektrische steckverbindungsleiste.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3606198 1986-02-26
DE3606198 1986-02-26

Publications (3)

Publication Number Publication Date
EP0234367A2 true EP0234367A2 (fr) 1987-09-02
EP0234367A3 EP0234367A3 (en) 1988-08-10
EP0234367B1 EP0234367B1 (fr) 1993-06-23

Family

ID=6294984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101661A Expired - Lifetime EP0234367B1 (fr) 1986-02-26 1987-02-06 Contact élastique pour bloc de connexion électrique

Country Status (3)

Country Link
EP (1) EP0234367B1 (fr)
AT (1) ATE91047T1 (fr)
DE (1) DE3786272D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973257A (en) * 1990-02-13 1990-11-27 The Chamberlain Group, Inc. Battery terminal
EP0887896A3 (fr) * 1997-06-26 2000-01-12 Siemens Aktiengesellschaft Connecteur électrique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359258A (en) * 1980-01-14 1982-11-16 Trw Inc. Electrical connector
JPS57123669A (en) * 1980-12-15 1982-08-02 Amp Inc Power distribution block
DE3441134A1 (de) * 1984-11-10 1986-05-15 Cannon Electric Gmbh Pruefstecker mit buchsenkontakten und verfahren zur herstellung solcher buchsenkontakte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973257A (en) * 1990-02-13 1990-11-27 The Chamberlain Group, Inc. Battery terminal
EP0887896A3 (fr) * 1997-06-26 2000-01-12 Siemens Aktiengesellschaft Connecteur électrique

Also Published As

Publication number Publication date
EP0234367A3 (en) 1988-08-10
DE3786272D1 (de) 1993-07-29
ATE91047T1 (de) 1993-07-15
EP0234367B1 (fr) 1993-06-23

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