EP0357816B1 - Contact à doubles ressorts plats - Google Patents

Contact à doubles ressorts plats Download PDF

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Publication number
EP0357816B1
EP0357816B1 EP88114544A EP88114544A EP0357816B1 EP 0357816 B1 EP0357816 B1 EP 0357816B1 EP 88114544 A EP88114544 A EP 88114544A EP 88114544 A EP88114544 A EP 88114544A EP 0357816 B1 EP0357816 B1 EP 0357816B1
Authority
EP
European Patent Office
Prior art keywords
contact
flat spring
double flat
contact box
box
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.)
Revoked
Application number
EP88114544A
Other languages
German (de)
English (en)
Other versions
EP0357816A1 (fr
Inventor
Reinhold Spanke
Dieter Beer
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8199276&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0357816(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Priority to EP88114544A priority Critical patent/EP0357816B1/fr
Priority to DE88114544T priority patent/DE3885281D1/de
Priority to US07/396,978 priority patent/US4932891A/en
Publication of EP0357816A1 publication Critical patent/EP0357816A1/fr
Application granted granted Critical
Publication of EP0357816B1 publication Critical patent/EP0357816B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular 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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/2466—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the contact members having a channel-shaped part, the opposite sidewalls of which comprise insulation-cutting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping

Definitions

  • the invention relates to a double flat spring contact with two opposing spring legs, which are connected to a contact box having a parting line, on which a connection zone is arranged, and to a device for preventing expansion of the contact box.
  • Double flat spring contacts have long been known for their basic structure. These are small to very small stamped and bent parts made of metal, with wall thicknesses of just a few tenths of a millimeter.
  • the parting line opens, if necessary, and the two affected contact legs are slightly inclined.
  • the present invention is therefore based on the object of providing a double flat spring contact of the generic type which, with the least possible design effort, reliably prevents the contact box from widening while ensuring the required suspension values in the area of the spring legs.
  • the solution according to the invention consists in that the device for preventing the expansion of the contact box is formed by a tab projecting on a contact box wall on the parting line with an undercut geometry and a corresponding recess formed in the adjacent contact box wall for receiving the tab, wherein the tab is arranged at least in the expansion direction of the contact box without play in the recess, on which the tab carrying the wall of the contact box in the region of the joint is formed a stop shoulder.
  • the double flat spring contact according to the invention is thus distinguished by the lack of the disadvantages mentioned at the outset, which are associated with an expansion of the contact box, with a conceivably simple structural design. Since only the two contact spring legs now spring, contacting the above-mentioned pins and knives leads to line contacting with correspondingly high service life cycles. The now even stress distribution in the two spring leg cross sections results in significantly lower peak stresses. This results in a significantly increased security against plastic deformation. Furthermore, the relaxation behavior at higher temperatures is considerably less pronounced due to the lower voltage in the tip.
  • the double flat spring contact shown in FIG. 1 is a small sheet metal part, which is produced in large quantities as a stamped and bent part from a sheet metal with a wall thickness of a few tenths of a millimeter.
  • a typical design of the spring characteristic is, for example, the design for a pin to be inserted of 1 x 1 mm and a flat knife from 0.8 x 1.6 mm to 08 x 2.4 mm with a maximum current carrying capacity of the contact system of 16 A.
  • the order of magnitude should be noted that such contacts are designed in their external dimensions, for example, for a grid dimension or a row spacing of 5.08 to 5.0 mm.
  • the double flat spring contact in question essentially consists of a contact box 1, which is formed by a right-angled bend in accordance with the wall regions formed in the blank, the two opposite spring legs 2 and 3 being molded onto two opposite walls.
  • a connection zone is provided, which in the exemplary embodiment according to FIG. 1 is designed as a normal crimp connection 4a.
  • the parting line 5 of the contact box 1 is located in one of the box corners.
  • one of the contact box walls involved in the formation of the joint 5 in the exemplary embodiment according to FIG. 1, the upper wall 1a, a projecting tab 6 with an undercutting geometry, in the exemplary embodiment shown a substantially T-shaped tab, formed in a projecting manner and in the other wall 1b of the contact box 1 adjoining the joint 5, a recess 7 corresponding to the tab 6 and receiving it is formed.
  • the tab 6 is embossed on all sides in the recess 7 without play, as a result of which it finds a spring-free, rigid and in particular also very reliable hold in order to prevent it from picking up when making contact expanding forces occurring with regard to the very small wall thicknesses in question here come out of the recess 7.
  • an abutment shoulder 8 is formed on the contact box 1 in the region of the joint 5, which serves as a stop during the formation of the contact and advantageously limits the bending process.
  • a stop leg 10 bent downwards at right angles is formed on its end edge opposite the spring leg 2.
  • the stop leg 10 can on the other hand be used as a wire stop when connecting a wire in the connection zone 4a.
  • connection zone 4b arranged on the contact box is not designed here as a crimp connection, but rather as an insulation displacement connection.
  • two insulation displacement zones 11, 12 are provided.
  • the actual insulation displacement gap 13 is punched in the cut and bent up by 90 ° in a station in the punching tool, as a result of which a considerable accuracy of the gap dimension can be achieved during cutting and the dimensional tolerance can be kept very small.
  • the connection zone 4b is essentially box-shaped and is formed by the two U-shaped bent-up side walls 14, 15, which are stiffened and stabilized in the floor area by a connecting web 16.
  • the insulation displacement gap 13, as illustrated in FIG. 3, extends over the region of the lower 90 ° bend. This ensures that a resilient leg length, namely the leg length extending over the 90 ° bend in the bottom region, remains even when small individual wires are pressed in up to the base of the connection box. Otherwise, the deflection of the two cutting legs 17, 18 could go to zero for a given contact force or the contact force could become extremely large for a given deflection of the cutting legs 17, 18, which could lead to cracks due to excessive mechanical stress in the area of the cutting gap base. and there is a risk of breakage, or would cut through a bundle of cracks or part of the individual wires.
  • the inner spacing between the U-shaped upturned side walls 14, 15 can expediently be varied in the punching tool, since this can support the spring behavior of the two cutting legs 17, 18.
  • An additional force can be generated by the side walls, which can be applied to the cutting legs in order to increase the contact force in the insulation displacement gap or to reduce the bending load in the cutting legs while the contact force remains the same.
  • an insulation crimping zone 19 is located next to the insulation displacement zone 11, 12. The crimping takes place when the individual wires are pressed into the insulation displacement connection zone. The insulation crimping keeps tensile loads away from the cutting zones.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (7)

  1. Contact à double ressort plat comportant deux branches de ressort (2, 3), opposées l'une à l'autre, qui sont reliées à un boîtier de contact (1) présentant une fente de séparation (5), sur lequel est prévue une zone de raccordement (4a, 4b), et comportant un dispositif destiné à empêcher que le boîtier de contact (1) ne s'ouvre, caractérisé en ce que ce dispositif est formé par une patte (6) faisant saillie sur une paroi (1a) du boîtier de contact sur la fente de séparation (5), avec une géométrie à détalonnage et par une découpe (7) correspondante, prévue dans la paroi (1b) adjacente du boîtier de contact, destinée à loger la patte (6), la patte (6) étant logée sans jeu dans la découpe (7), au moins dans le sens de l'ouverture du boîtier de contact (1) et un épaulement de butée (8) étant formé sur la paroi (1a), portant la patte (6), du boîtier de contact (1), dans la zone de la fente de séparation (5).
  2. Contact à double ressort plat selon la revendication 1, caractérisé en ce que la fente de séparation (5) est formée dans une arête du boîtier de contact (1).
  3. Contact à double ressort plat selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'une des parois (1a) du boîtier de contact présente, sur son côté tourné à l'opposé des branches de ressort (2, 3), une aile de butée (10) pliée à angle droit vers l'intérieur.
  4. Contact à double ressort plat selon une ou plusieurs des revendications précédentes, caractérisé en ce que la zone de raccordement (4b), située en face des branches de ressort (2, 3), sur le boitier de contact (1), est conçue sous la forme d'un raccordement à bornes dénudantes (11, 12).
  5. Contact à double ressort plat selon la revendication 4, caractérisé en ce que l'encoche (13) de dénudage est formée dans le flan et les branches de coupe (17, 18) qui la définissent sont repliées vers le haut à 90°.
  6. Contact à double ressort plat selon la revendication 5, caractérisé en ce que l'encoche de dénudage (13) s'étend sur le coude de 90°.
  7. Contact à double ressort plat selon l'une des revendications 4 à 6, caractérisé en ce qu'à la zone (11, 12) de raccordement par bornes dénudantes fait suite une zone de sertissage surisolant (19).
EP88114544A 1988-09-07 1988-09-07 Contact à doubles ressorts plats Revoked EP0357816B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP88114544A EP0357816B1 (fr) 1988-09-07 1988-09-07 Contact à doubles ressorts plats
DE88114544T DE3885281D1 (de) 1988-09-07 1988-09-07 Doppelflachfederkontakt.
US07/396,978 US4932891A (en) 1988-09-07 1989-08-22 Dual flat-spring electrical contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88114544A EP0357816B1 (fr) 1988-09-07 1988-09-07 Contact à doubles ressorts plats

Publications (2)

Publication Number Publication Date
EP0357816A1 EP0357816A1 (fr) 1990-03-14
EP0357816B1 true EP0357816B1 (fr) 1993-10-27

Family

ID=8199276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114544A Revoked EP0357816B1 (fr) 1988-09-07 1988-09-07 Contact à doubles ressorts plats

Country Status (3)

Country Link
US (1) US4932891A (fr)
EP (1) EP0357816B1 (fr)
DE (1) DE3885281D1 (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986765A (en) 1989-02-21 1991-01-22 Amp Incorporated Insertable latch means for use in an electrical connector
JPH0622927Y2 (ja) * 1989-05-25 1994-06-15 矢崎総業株式会社 圧接ターミナル
FR2703520B1 (fr) * 1993-04-02 1997-04-30 Francelco Sa Module connecteur électrique et procédé de montage d'un tel module.
DE4329813C2 (de) * 1993-09-03 1996-07-04 Grote & Hartmann Elektrisches Kontaktelement
IT1261879B (it) * 1993-10-18 1996-06-03 Framatome Connectors Italia Terminale elettrico femmina
DE4335828A1 (de) * 1993-10-20 1995-04-27 Grote & Hartmann Elektrische Flachsteckkontaktbuchse
DE69512427T2 (de) * 1994-10-13 2000-02-17 Framatome Connectors Int Elektrische anschlussklemme mit verspannfechern
FR2725835A1 (fr) * 1994-10-13 1996-04-19 Framatome Connectors Int Borne de contact electrique auto-denudante
JPH08306421A (ja) * 1995-04-28 1996-11-22 Furukawa Electric Co Ltd:The 雌型端子
US5676570A (en) * 1996-03-15 1997-10-14 Minnesota Mining And Manufacturing Company "F" port interface connector
FR2759500B1 (fr) * 1997-02-10 1999-03-05 Cinch Connecteurs Sa Organe male de contact electrique
FR2769413B1 (fr) * 1997-10-03 1999-11-26 Proner Comatel Sa Contact electrique femelle
DE19814401B4 (de) * 1998-03-31 2008-04-03 The Whitaker Corp., Wilmington Elektrischer Kontakt zur Kontaktierung eines zylindrischen komplementären Kontaktstiftes und entsprechende elektrische Steckverbinder
US6419518B1 (en) 2001-02-16 2002-07-16 Y-Connect, Incorporated Insulation displacement contact for use with fine wires
US6431903B1 (en) 2001-03-07 2002-08-13 Y-Connect Incorporated Insulation displacement contact for use with fine wires
DE10351540B3 (de) * 2003-11-03 2005-08-11 Intedis Gmbh & Co. Kg Flachsteckbuchse
JP4716529B2 (ja) * 2009-02-09 2011-07-06 日本航空電子工業株式会社 コンタクト及び電気コネクタ
JP2012028076A (ja) * 2010-07-21 2012-02-09 Auto Network Gijutsu Kenkyusho:Kk 電線付き端子金具およびその製造方法
USD665360S1 (en) * 2011-10-21 2012-08-14 Fci Americas Technology Llc Electrical terminal
US20140120786A1 (en) 2012-11-01 2014-05-01 Avx Corporation Single element wire to board connector
US8721376B1 (en) 2012-11-01 2014-05-13 Avx Corporation Single element wire to board connector
TWD170623S (zh) * 2014-09-16 2015-09-21 唐虞企業股份有限公司 端子
US9391386B2 (en) 2014-10-06 2016-07-12 Avx Corporation Caged poke home contact
CN105914506B (zh) * 2016-04-14 2018-05-04 安徽江淮汽车集团股份有限公司 一种线束母端子及其卡接结构
US10320096B2 (en) 2017-06-01 2019-06-11 Avx Corporation Flexing poke home contact
CN109149149A (zh) * 2017-06-27 2019-01-04 上海徕木电子股份有限公司 一种汽车复合包线端子
CN108631093A (zh) * 2018-05-08 2018-10-09 宁波赛锋电子科技有限公司 一种新型导电片结构
IT201900002437A1 (it) * 2019-02-20 2020-08-20 Inarca Spa Terminale femmina perfezionato per connessioni elettriche
JP7215933B2 (ja) * 2019-03-01 2023-01-31 矢崎総業株式会社 接続端子

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DE1515580A1 (de) * 1965-09-14 1969-07-31 Constructa Werke Gmbh Elektrische Leitungsverbindung
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US3874769A (en) * 1972-04-04 1975-04-01 Hans Simon Spring contact for establishing electric plug-in connections
DE2708753C3 (de) 1977-03-01 1979-11-22 Fa. Leopold Kostal, 5880 Luedenscheid Elektrische Kontaktbuchse
US4408824A (en) * 1981-06-08 1983-10-11 Amp Incorporated Wire-in-slot terminal
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DE3626239C2 (de) 1986-08-02 1995-11-23 Adels Kg Aus Metall bestehender Klemmkörper mit Drahtschutz
EP0271594B1 (fr) 1986-12-16 1992-04-22 Weidmüller Interface GmbH & Co. Dispositif de serrage

Also Published As

Publication number Publication date
EP0357816A1 (fr) 1990-03-14
US4932891A (en) 1990-06-12
DE3885281D1 (de) 1993-12-02

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