EP0662733A2 - Positionnement de ressort de contacts - Google Patents

Positionnement de ressort de contacts Download PDF

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Publication number
EP0662733A2
EP0662733A2 EP94120487A EP94120487A EP0662733A2 EP 0662733 A2 EP0662733 A2 EP 0662733A2 EP 94120487 A EP94120487 A EP 94120487A EP 94120487 A EP94120487 A EP 94120487A EP 0662733 A2 EP0662733 A2 EP 0662733A2
Authority
EP
European Patent Office
Prior art keywords
contact
spring arrangement
contact spring
arrangement according
recesses
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
EP94120487A
Other languages
German (de)
English (en)
Other versions
EP0662733A3 (fr
EP0662733B1 (fr
Inventor
Jürgen Frommer
Erich Kreutter
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.)
ITT Cannon GmbH
Original Assignee
ITT Cannon 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 ITT Cannon GmbH filed Critical ITT Cannon GmbH
Publication of EP0662733A2 publication Critical patent/EP0662733A2/fr
Publication of EP0662733A3 publication Critical patent/EP0662733A3/fr
Application granted granted Critical
Publication of EP0662733B1 publication Critical patent/EP0662733B1/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
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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 spring arrangement, consisting of two oppositely arranged contact springs, each having a contact head which has a contact surface and two side surfaces such that the two contact surfaces are opposite one another.
  • a simple way of producing such contact spring arrangements is to punch them out of flat sheet metal.
  • the contact area is the area along which the stamped cut has been made.
  • This contact surface therefore has cutting grooves (cf. the cutting grooves 16 in FIG. 1). If a plug-in element is now inserted between two such contact springs and an electrical contact is thereby established, the cutting grooves act in the long run like a file. The plugs are worn out very quickly. In addition, the resulting electrical contact is not good. Furthermore, the width of the contact is limited by the thickness of the material from which the contact spring arrangement is punched out.
  • the US-PS 4,660,922 shows a press fit pin in which the contact area is cylindrical.
  • the contact head (head) serves to firmly anchor the pin, which is part of a connector strip, in a receiving part 46 (FIG. 5A).
  • This component has a convex surface and side surfaces. However, the problem of eliminating the scoring of a contact surface that arises during a die cut is not solved.
  • the DE-GM shows recesses made by punching. However, they do not serve to improve the contact area, but to anchor the pin in a mounting plate (see p. 5, line 10).
  • the object of the invention is to provide a contact spring arrangement of the type mentioned, in which the contact surface is improved.
  • the object is achieved in that at least one recess is stamped into each of the side surfaces and the contact surfaces are smoothed and widened by the material flow taking place during stamping.
  • the material of the contact surfaces flows - with the appropriate design of the embossing shape. This will widen the contact area and the striations that are still from the previous one
  • the punching process are smoothed. It can also form a convex surface transverse to the longitudinal direction of the contact spring, so that the contact surface takes on the shape of a spoon overall. In this way, the contact area is enlarged and qualitatively improved with simple means.
  • FIG. 1 shows a contact spring arrangement 20 with two contact springs 21 and 22.
  • This contact spring arrangement is inserted into a bore 23 in a plastic plate 24 (printed circuit board) and is provided with a contact pin 25 at its end protruding beyond the plastic plate 24.
  • This can be a so-called press-fit contact, ie a contact which has an elastically compressible region (not shown) with which it is held in the bore of another plastic plate (printed circuit board).
  • contact spring arrangements are in several bores 23, e.g. a field of 3 times 32 holes arranged in a connector field.
  • the contact springs 21, 22 each have contact heads 2, 2 '.
  • a pin (not shown) is now inserted from above (in FIG. 1) between the two contact heads 2, 2 ', specifically through the insertion opening 26.
  • FIG. 3 shows the blank 10 punched out of sheet metal of a contact spring with side faces 15 and a contact face 14.
  • the width b0 of a contact head 2 is equal to the thickness of the sheet from which the contact springs 21, 22 are punched out.
  • the punched blank as can be seen in FIG. 3, has cutting grooves 16 which result from the punching process which takes place in the S direction. This is how the contact springs look according to the state of the art in question here. If a plug element (not shown) is inserted between two contact springs 21, 22 with their contact surfaces 14, it can be seen that the grooves 16 act practically like a file on the contact surface of the plug element. In addition, the contact surface 14 provided with the cutting grooves 16 and created by the cutting process does not provide good electrical contact. Furthermore, the width is b0 Contact area limited to the thickness of the sheet from which the contact spring was punched out.
  • such a contact spring is now further processed in that, as can be seen in FIG.
  • the material displaced by this embossing process causes the contact surface 14 to flow.
  • the contact spring is smoothed in the embossing mold, so that the cutting grooves 16, which result from the previous punching process, largely disappear.
  • the contact surface 4 of the finished contact head 2 or 2 ' is created.
  • the contact surface also flows in width, of course only on the condition that the embossing shape is designed accordingly.
  • the contact surface 4 then has a width b 1 that is greater than the original width b 1 of the blank 10 not provided with the embossed recesses 7.
  • the recesses 7 can be embossed to such an extent that they merge, i.e. so that, as indicated by the dashed lines in Figure 7, a continuous recess 7 'is formed.
  • recesses 17 are embossed and designed in such a way that they are open to the surface 6 which lies opposite the contact surface 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Measuring Leads Or Probes (AREA)
  • Contacts (AREA)
EP94120487A 1994-01-11 1994-12-23 Positionnement de ressort de contacts Expired - Lifetime EP0662733B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4400499 1994-01-11
DE4400499A DE4400499C2 (de) 1994-01-11 1994-01-11 Kontaktfeder-Anordnung

Publications (3)

Publication Number Publication Date
EP0662733A2 true EP0662733A2 (fr) 1995-07-12
EP0662733A3 EP0662733A3 (fr) 1996-07-03
EP0662733B1 EP0662733B1 (fr) 1998-10-21

Family

ID=6507672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94120487A Expired - Lifetime EP0662733B1 (fr) 1994-01-11 1994-12-23 Positionnement de ressort de contacts

Country Status (3)

Country Link
US (1) US5599213A (fr)
EP (1) EP0662733B1 (fr)
DE (2) DE4400499C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0777306A1 (fr) * 1995-12-01 1997-06-04 Berg Electronics Manufacturing B.V. Eléments de contact lisses, procédé de fabrication de tels éléments et produits ayant de tels éléments
US9772147B2 (en) 2011-12-16 2017-09-26 Ge Oil & Gas Uk Limited Heat sink mounting apparatus and method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10340745A (ja) * 1997-06-04 1998-12-22 Kyoshin Kogyo Kk ワンタッチコネクタおよびワンタッチコネクタ組合せ体
US6471523B1 (en) * 2000-02-23 2002-10-29 Berg Technology, Inc. Electrical power connector
US7037127B2 (en) * 2000-07-28 2006-05-02 Williams Roger C Low force electrical contact
JP4040917B2 (ja) * 2002-06-28 2008-01-30 株式会社東海理化電機製作所 プレスフィットピン
US6969271B2 (en) * 2002-09-10 2005-11-29 Visteon Global Technologies, Inc. Snap pin connector
DE102008048731A1 (de) * 2008-09-24 2010-04-01 Harting Electronics Gmbh & Co. Kg Symmetrischer elektrischer Kontakt
CN201667429U (zh) * 2009-11-12 2010-12-08 富士康(昆山)电脑接插件有限公司 电连接器
JP2014063613A (ja) * 2012-09-20 2014-04-10 Mabuchi Motor Co Ltd ターミナルの製造方法およびターミナル

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB979211A (en) * 1961-06-29 1965-01-01 United Carr Inc Electrical plug and socket assemblies
US3824554A (en) * 1972-08-28 1974-07-16 G Shoholm Spring-type press-fit
US4002391A (en) * 1976-03-03 1977-01-11 Northern Electric Company, Limited Insulation slicing terminal
EP0208500A1 (fr) * 1985-07-01 1987-01-14 BICC Public Limited Company Contact électrique
US4769907A (en) * 1987-07-27 1988-09-13 Northern Telecom Limited Method of making a circuit board pin

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6609552U (de) * 1966-08-30 1972-06-29 Hora Werk Gmbh Zwergstecker mit rundstiften fuer elektrische leitungsanschluesse, insbesondere fuer phonogeraete aller art, fernsehgeraete, antennen od. dgl.
US4660922A (en) * 1984-06-29 1987-04-28 Pylon Company, Inc. Terminal plug body and connector
US4874338A (en) * 1987-03-31 1989-10-17 Amp Incorporated Receptacle box terminal with improved contact area
JPH0731510Y2 (ja) * 1990-05-16 1995-07-19 矢崎総業株式会社 雌端子金具
DE9016257U1 (de) * 1990-11-29 1991-04-04 Thomas & Betts Corp., Bridgewater, N.J. Anschlußstift
US5224885A (en) * 1992-05-05 1993-07-06 Elco Corporation Low profile dual beam contact
US5188547A (en) * 1992-05-07 1993-02-23 Molex Incorporated Electrical terminal pin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB979211A (en) * 1961-06-29 1965-01-01 United Carr Inc Electrical plug and socket assemblies
US3824554A (en) * 1972-08-28 1974-07-16 G Shoholm Spring-type press-fit
US4002391A (en) * 1976-03-03 1977-01-11 Northern Electric Company, Limited Insulation slicing terminal
EP0208500A1 (fr) * 1985-07-01 1987-01-14 BICC Public Limited Company Contact électrique
US4769907A (en) * 1987-07-27 1988-09-13 Northern Telecom Limited Method of making a circuit board pin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0777306A1 (fr) * 1995-12-01 1997-06-04 Berg Electronics Manufacturing B.V. Eléments de contact lisses, procédé de fabrication de tels éléments et produits ayant de tels éléments
US9772147B2 (en) 2011-12-16 2017-09-26 Ge Oil & Gas Uk Limited Heat sink mounting apparatus and method

Also Published As

Publication number Publication date
US5599213A (en) 1997-02-04
DE59407130D1 (de) 1998-11-26
DE4400499C2 (de) 1996-05-02
EP0662733A3 (fr) 1996-07-03
EP0662733B1 (fr) 1998-10-21
DE4400499A1 (de) 1995-07-20

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