EP0034525B1 - Connecteur à force d'insertion nulle, notamment pour circuit intégré - Google Patents

Connecteur à force d'insertion nulle, notamment pour circuit intégré Download PDF

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Publication number
EP0034525B1
EP0034525B1 EP81400191A EP81400191A EP0034525B1 EP 0034525 B1 EP0034525 B1 EP 0034525B1 EP 81400191 A EP81400191 A EP 81400191A EP 81400191 A EP81400191 A EP 81400191A EP 0034525 B1 EP0034525 B1 EP 0034525B1
Authority
EP
European Patent Office
Prior art keywords
connector
levers
clamp
legs
contact
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.)
Expired
Application number
EP81400191A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0034525A1 (fr
Inventor
Michel Barbaire
Marcel Roux
Jean-Pierre Turolla
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.)
Socapex SA
Original Assignee
Socapex SA
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 Socapex SA filed Critical Socapex SA
Publication of EP0034525A1 publication Critical patent/EP0034525A1/fr
Application granted granted Critical
Publication of EP0034525B1 publication Critical patent/EP0034525B1/fr
Expired 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
    • H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction

Definitions

  • the present invention relates to the field of connectors for components provided with a large number of electrical connection elements, constituted by portions of flexible or rigid conductors.
  • connection of such a component with the circuits or equipment in which it is used is most often carried out conductor by conductor, by processes such as soldering or winding ("wrapping") for example, and the time spent in each unit operation can be justified in the event that the connection sought is final.
  • connectors of the so-called "zero insertion force" type have been proposed, where the connection operation is carried out in two steps, namely a step of introduction, without friction, of the tabs in the contact elements, made in the form of elastic clips with two branches, where the tabs can freely penetrate in the open position, and a step of simultaneous tightening of the set of clamps, by bringing the two branches of each clamp together by the action of a common movable plunger made of insulating material.
  • the lugs of the integrated circuits to be connected have, in their distribution along the housing thereof, geometric irregularities of the erratic type, originating on the one hand from manufacturing tolerances, and on the other hand from accidental bends or twists in storage or use.
  • the connector which is the subject of the present invention does not have these disadvantages.
  • the invention relates to a connector with zero insertion force, for component provided with a plurality of connection lugs, comprising an insulating block supporting a plurality of contact elements, the insulating block being made up of three parts provided with openings for the passage of said elements, parts in the form of plates arranged parallel in superposition, the intermediate plate being movable in translation relative to the other two, in two positions of insertion and clamping respectively, and each contact element being in the form of an elastic clamp with two branches, connector characterized in that each contact element carries, symmetrically, on one of its branches, a pair of levers oriented parallel to the latter, the movable plate carrying, on each side of each opening, a pair of projecting pushers resting on these levers to ensure by said translation said tightening.
  • Figure 1 shows, in an overview, a connector for an integrated circuit according to the prior art.
  • the intermediate plate 7 is movable longitudinally, and can by translation in this direction, occupy two positions, by action on the circular cam 8, comprising a flattened part 9 , and controlled by lever 10.
  • the intermediate plate in the insertion position, has its openings 11 aligned with the openings 12 in the guide plate.
  • the legs 5 of the integrated circuit can be easily introduced into the openings 11 and 12, since the contact elements do not undergo any bending force on the part of the intermediate plate 7.
  • Such a connector presents no possibility of geometric adaptation of each contact to each tab, and the contact resistances produced spread over a wide range of values which are inadmissible in use.
  • FIG 2 shows, in two partial views (a) and (b), the two stages of operation of the connector of Figure 1, but provided with other contact elements of the known art.
  • the contact elements 2 are in the form of pliers with two branches 20 and 21, joined by an elastic connection base allowing by elsewhere the connection with a circuit of use by a tab not shown.
  • each branch carries a lateral lever 22 and 23, arranged perpendicularly these two levers resting on the opposite edges of the upper plate 4 and mobile intermediate 7.
  • Figures 3 and 4 show, in a partial perspective view, two embodiments of a clamp for connector according to the invention.
  • the intermediate plate 7 is only shown for clarity, and it carries pushers such as 30 and 31 projecting, arranged in pairs opposite one another.
  • the clip-shaped contact element 32 consists of two branches 33 and 34, joined at their common end by an elastic base 35, and carrying two parts 36 and 37 ensuring the actual contact at their other end two folds of direction contrary in 38 and 39, ensure the presence of a free space between the two surfaces, of contact 36 and 37, allowing the easy introduction of a connection lug of a circuit to be connected.
  • one of the branches carries two control levers 40 and 41, arranged symmetrically with respect to its median axis 42 and parallel thereto.
  • FIG. 3 provides a lower contact pressure than that of FIG. 4 for an identical amplitude of the intermediate control plate; on the other hand, it seems to allow better curvature of the movable contact part of the autor clamp of the lug of the circuit to be connected.
  • the various means present on the contact element each assume only one function, and that the orientation of the control levers parallel to the central median axis of a contact leaves the freedom of a wide choice of the length thereof without increasing the transverse size of the connector.
  • FIG. 5 represents, according to two partial sections (a) and (b), the two stages of operation of a connector according to the invention.
  • each contact element 32 in the form of a clamp has its two substantially parallel contact regions 36 and 37, thanks to the double folding 38 and 39. The opening presented is then maximum for the introduction of the tab 5.
  • the intermediate plate 7 is then pushed in the direction of the arrow 13, for the closing step, to the final position shown in (b).
  • the branch 34 after having elastically pivoted around the folding 39 is then in abutment on the tab 5, but the pusher 31 which controls it was able to freely continue its stroke, by imparting an angle bending F to the control lever whose value clearly shows the contact pressure obtained.
  • Geometric compensation for position differences between the connection lugs of an integrated circuit is thus obtained in a wide range of positions, the bending of each control lever 40 ensuring simultaneously, independently of that of the branch which carries it, and following an automatically adapted angle, backlash and the necessary and sufficient contact pressure at low electrical contact resistance.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP81400191A 1980-02-19 1981-02-06 Connecteur à force d'insertion nulle, notamment pour circuit intégré Expired EP0034525B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8003575A FR2476393A1 (fr) 1980-02-19 1980-02-19 Connecteur a force d'insertion nulle, notamment pour circuit integre
FR8003575 1980-02-19

Publications (2)

Publication Number Publication Date
EP0034525A1 EP0034525A1 (fr) 1981-08-26
EP0034525B1 true EP0034525B1 (fr) 1983-11-30

Family

ID=9238721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400191A Expired EP0034525B1 (fr) 1980-02-19 1981-02-06 Connecteur à force d'insertion nulle, notamment pour circuit intégré

Country Status (4)

Country Link
US (1) US4397512A (enrdf_load_stackoverflow)
EP (1) EP0034525B1 (enrdf_load_stackoverflow)
DE (1) DE3161524D1 (enrdf_load_stackoverflow)
FR (1) FR2476393A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506941A (en) * 1983-11-23 1985-03-26 Burroughs Corporation Socket incorporating serially coupled springs
US4501461A (en) * 1983-12-27 1985-02-26 International Telephone And Telegraph Corporation Zero insertion force socket
US4887974A (en) * 1988-02-03 1989-12-19 Japan Aviation Electronics Industry, Limited Connector
DE69513083T2 (de) * 1994-05-25 2000-05-04 Japan Aviation Electronics Industry, Ltd. Steckverbinder, bedienbar mit relativ geringem Kraftaufwand
US5995378A (en) * 1997-12-31 1999-11-30 Micron Technology, Inc. Semiconductor device socket, assembly and methods
US6089920A (en) 1998-05-04 2000-07-18 Micron Technology, Inc. Modular die sockets with flexible interconnects for packaging bare semiconductor die

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670288A (en) * 1971-02-16 1972-06-13 Amp Inc Torsion contact zero-insertion force connector
US3763459A (en) * 1971-06-17 1973-10-02 Textool Prod Inc Plug-in type sockets for testing semiconductors
FR2363918A1 (fr) * 1976-09-03 1978-03-31 Amp Inc Connecteur electrique pour le montage d'un dispositif electronique a broches multiples sur un support

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670288A (en) * 1971-02-16 1972-06-13 Amp Inc Torsion contact zero-insertion force connector
US3763459A (en) * 1971-06-17 1973-10-02 Textool Prod Inc Plug-in type sockets for testing semiconductors
FR2363918A1 (fr) * 1976-09-03 1978-03-31 Amp Inc Connecteur electrique pour le montage d'un dispositif electronique a broches multiples sur un support

Also Published As

Publication number Publication date
US4397512A (en) 1983-08-09
FR2476393A1 (fr) 1981-08-21
FR2476393B1 (enrdf_load_stackoverflow) 1982-01-15
EP0034525A1 (fr) 1981-08-26
DE3161524D1 (en) 1984-01-05

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