EP0451525A2 - Connecteur électrique du type fiche et douille - Google Patents

Connecteur électrique du type fiche et douille Download PDF

Info

Publication number
EP0451525A2
EP0451525A2 EP91103828A EP91103828A EP0451525A2 EP 0451525 A2 EP0451525 A2 EP 0451525A2 EP 91103828 A EP91103828 A EP 91103828A EP 91103828 A EP91103828 A EP 91103828A EP 0451525 A2 EP0451525 A2 EP 0451525A2
Authority
EP
European Patent Office
Prior art keywords
pin
tube
socket
electrical
housing means
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.)
Withdrawn
Application number
EP91103828A
Other languages
German (de)
English (en)
Other versions
EP0451525A3 (fr
Inventor
Kanwal Bahri
Richard Alfred Johnson
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0451525A2 publication Critical patent/EP0451525A2/fr
Publication of EP0451525A3 publication Critical patent/EP0451525A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • H01R13/33—Contact members made of resilient wire

Definitions

  • the present invention relates to an electrical connector of the pin and socket type, and more particularly relates to a connector in which a first connector member has a multitude of pins which engages with corresponding sockets in a dense configuration on a second connector member when the connector members are co-engaged.
  • U. S. Patent No. 3,277,422 discloses a connector having multiple pin terminals on one connector member which engage with terminal-receiving bores on the other connector member.
  • the terminal-receiving bores have cylindrical forward portions with which the respective forward pin portions engage.
  • the forward pin portions may be enlarged or formed of strands of spring-like wire to ensure contact between the pins of one connector member with the cylinders of the other connector member to ensure electrical contact.
  • U. S. Patent No. 3,838,381 discloses a safety current outlet and plug device wherein the outlet has sockets designed to deform elastic blades on a plug member to ensure good electrical contact.
  • U. S. Patent No. 4,138,180 discloses a plug of the kind comprising a first element having at least one pin and a second element having at least one socket designed to take the pin.
  • the pin is cylindrical in shape and has an enlarged end which is designed to engage with the socket having a square-section hole whose diameter of the circle inscribed in the hole substantially equals the maximum diameter of the enlarged end of the pin.
  • U. S. Patent No. 4,840,588 discloses a socket contact wherein electrical connection is obtained by permanent deformation of the socket to make contact between the socket walls and a pin inserted therein.
  • IBM Technical Disclosure Bulletin, Vol. 18, No. 11, April 1976, page 3588 discloses a solderless board connection element comprising a barrel sleeve adapted to fit over and tightly clamped to a standard module pin.
  • the barrel sleeve includes an extension which forms a spring that deflects as it contacts a pad for wiping the pad and forming an electrical path of high integrity between the pad, the spring extension of the barrel sleeve and the module pin.
  • IBM Technical Disclosure Bulletin, Vol. 30, No. 6, November 1987, page 292 discloses a circuit board which carries an array of tubes and a circuit card that is pluggable into the board.
  • the board carries an array of pin-like bendable beams that fit loosely into matching tubes when the card is initially positioned on the board.
  • the card or the board is moved laterally such that the bendable pins contact the rim of the tubes and one other point on the sidewall of the tubes such that there is electrical connection between each pin-like bendable beams and two points of the matching tubes.
  • the present invention is intended to remedy drawbacks of the prior art and to provide an improved electrical connector of the pin and socket type.
  • the electrical connector of the present invention as claimed includes a first connector member having a pin-like extension and a second connector member having a socket into which the pin-like extension is inserted for making electrical contact.
  • the socket of the second connector member has a double bend such that the pin being inserted therein is deflected to make three points of electrical contact between the socket and the pin.
  • the present invention provides an improved pin and socket type electrical connector having a near zero insertion force connection formed without moving parts. Further the invention has electrical shielding around the pin and socket connection.
  • the pin and socket type electrical connector which may be configured in a dense array and can be provided for connecting multiple cables each carrying a signal conductor to an electrical circuit in a simple yet reliable manner.
  • Fig. 1 is a perspective drawing showing a connector member 10 which engages with and provides an electrical connection between a plurality of signal cables, a portion of which are shown at 12, and a closely spaced matrix of terminals in a second connector member 20.
  • Connector members 10 may be clamped together in pairs by a carrier bracket 14 and secured in place by a fastening device such as a bolt 15 having a threaded end (not shown) which screws into a threaded bore 16 in a support member such as a printed circuit board stiffener 18 as shown in Fig. 1.
  • the connector members 10 and 20 may be engaged, as will be described, to make electrical connections between signals carried by the cables 12 and electrical terminals in the connector member 20 which are connected to signal leads in, for instance, an electrical circuit on printed circuit board 22, or other electrical circuits, as desired.
  • Fig. 2 is a sectioned view of the connector members 10 and 20 showing a single connection between a cable 24 of the cable bundle 12 of Fig. 1, and a socket terminal 25 of the connector member 20.
  • the cable 24 has a signal conductor 26 which is welded or soldered to a center pin 28 at 29.
  • the cable 24 also includes a ground conductor 30, which may be a separate conductor or a concentric foil around the signal conductor to provide shielding, as desired.
  • the ground conductor 30 is crimped or otherwise electrically connected to a tube 32.
  • the pin 28 is aligned with and held concentrically within the tube 32 by electrical insulating rings 33, 34, 35 and 36.
  • the connector member 10 has a chamber 38 formed by an extension 39 for receiving a forward portion 40 of the connector member 20.
  • the leading edges of the extension 39 and the forward portion 40 are tapered at 41 and 42, respectively, to assist in the aligning of the connector members 10 and 20 as they are mated together for engagement.
  • the forward portion 40 includes a countersunk bore 44 forming a socket for receiving the free end of the pin 28 and a portion of the tube 32 as the connector members 10 and 20 are engaged.
  • the countersunk bore 44 includes an enlarged portion 46 in which is located a pair of concentric tubes 48 and 50.
  • the outer tube 48 is sized to slidably receive the free end of the tube 32, and includes bent spring portions 52 which are bent inwardly to make electrical contact with the tube 32.
  • the inner concentric tube 50 is sized to slidably receive the free end of the pin 28 as the connector members 10 and 20 are engaged.
  • the inner concentric tube 50 has a double bend to insure electrical contact between the tube 50 and the pin 28 as will be further discussed.
  • the inner concentric tube 50 is connected to a signal lead 54, and the outer concentric tube 48 is connected to a ground lead 56. Leads 54 and 56 are connected to an electronic circuit, as desired.
  • the concentric tubes 48 and 50 are electrically insulated from each other by an insulator 55.
  • tubes 32, 48 and 50 and pin 28 are concentric and have circular cross-sections, but it will be understood that other cross-sections such as ovals or squares, or a combination, could be used.
  • Figs. 3A, 3B and 3C show a progression of steps as the pin 28 is inserted into the tube 50 of the terminal 25 of Fig. 2.
  • the tube has a slightly flared end 60 for assisting in making final alignment of the end of the pin 28 as it is inserted in the end of the tube 50, as shown in Fig. 3A.
  • the tube 50 has a double bend for providing at least three contact points, A, B and C, between the tube 50 and the pin 28.
  • Fig. 3B the pin 28 is shown partially inserted into the tube 50 making electrical contact at point A, and just starting to make electrical contact on the opposite wall of the tube 50.
  • Fig. 3C is an illustration of the pin 28 fully inserted into the tube 50 and making electrical contact at points A, B and C.
  • the pin is the compliant member whereas the bent tube 50 is rigid.
  • the magnitude of the bend will depend upon the desired contact force.
  • the pin 28 is guided into the lead-in area of the tube by the slightly flared end 60.
  • the rigid tube geometry deflects the pin in such a way that three points of contact are established, but without exceeding the limits of elasticity of the pin 28 such that constant electrical contact is maintained between the pin 28 and the inner walls of the tube 50.
  • the small angle of approach encountered by the pin 28 as it is inserted into the tube 50 is very desirable because it results in a small insertion force. Also, during withdrawal, the pin 28 can be pulled out of the tube 50 with relative ease. It will be understood that the edges 41 and 42 align the pins 28 to their corresponding sockets formed by bores 44, and that engaging and withdrawing force of the connector members 10 and 20 as they are mated, may be supplied by the action of the threaded fastening device 15 in the threaded bore 16.
  • the disclosed connector results in a three point contact, adequate wipe between the pin 28 and the inner walls of the tube 50, and a ZIF (zero insertion force) like connection having no moving parts. This results in good and reliable electrical connection having very small insertion force. Since there are no moving parts in the connector, this design also results in very high density packaging.
  • the use of the co-axial tubes 32 and 48 for making the ground connections also lends itself to co-axial packaging schemes which will provide 360 degrees electrical shielding. Based on systems packaging requirements, the disclosed concept may be used in several configurations. These configurations may include surface mounted packaging for the front and back of the board, as well as traditional pin to board connectors.
  • connector member 20 is shown as a separate member mounted on a printed circuit board 22, it will be understood that the socket terminal 25 could be located in bores in the circuit board 22 itself. In that case the extension 39 of connector member 10 would not be used.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP19910103828 1990-04-11 1991-03-13 Connecteur électrique du type fiche et douille Withdrawn EP0451525A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US507434 1983-06-23
US50743490A 1990-04-11 1990-04-11

Publications (2)

Publication Number Publication Date
EP0451525A2 true EP0451525A2 (fr) 1991-10-16
EP0451525A3 EP0451525A3 (fr) 1991-10-23

Family

ID=24018635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910103828 Withdrawn EP0451525A3 (fr) 1990-04-11 1991-03-13 Connecteur électrique du type fiche et douille

Country Status (2)

Country Link
EP (1) EP0451525A3 (fr)
JP (1) JPH0589920A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3208890A1 (fr) * 2016-02-19 2017-08-23 Thomson Licensing Douille pour une fiche électrique et prise électrique souple

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE411899C (de) * 1922-09-01 1925-04-09 Robert Bosch Akt Ges Elektrische Steckerverbindung
FR1217899A (fr) * 1958-12-12 1960-05-06 Csf Contacts simples pour connexions souples
US3010093A (en) * 1959-06-24 1961-11-21 Berg Quentin Electrical connector assembly and element
FR1308897A (fr) * 1961-12-19 1962-11-09 Amp Inc Connecteurs électriques
US4340265A (en) * 1980-05-02 1982-07-20 Automatic Connector, Inc. Multi-coaxial/power pin connector assembly having integral ground
US4904206A (en) * 1988-04-12 1990-02-27 Amp Incorporated High voltage coaxial connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE411899C (de) * 1922-09-01 1925-04-09 Robert Bosch Akt Ges Elektrische Steckerverbindung
FR1217899A (fr) * 1958-12-12 1960-05-06 Csf Contacts simples pour connexions souples
US3010093A (en) * 1959-06-24 1961-11-21 Berg Quentin Electrical connector assembly and element
FR1308897A (fr) * 1961-12-19 1962-11-09 Amp Inc Connecteurs électriques
US4340265A (en) * 1980-05-02 1982-07-20 Automatic Connector, Inc. Multi-coaxial/power pin connector assembly having integral ground
US4904206A (en) * 1988-04-12 1990-02-27 Amp Incorporated High voltage coaxial connector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 2, no. 4, December 1959, NEW YORK, US; page 6 Mazzola et al.: "Electrical connector" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3208890A1 (fr) * 2016-02-19 2017-08-23 Thomson Licensing Douille pour une fiche électrique et prise électrique souple

Also Published As

Publication number Publication date
EP0451525A3 (fr) 1991-10-23
JPH0589920A (ja) 1993-04-09

Similar Documents

Publication Publication Date Title
US6042394A (en) Right-angle connector
US4941831A (en) Coaxial cable termination system
EP0561405B1 (fr) Connecteur hybride entrée-sortie avec faible force d'appariage et longue durée et contacts et système de verrouillage pour ce dernier
JP2791099B2 (ja) インピーダンス制御コネクタ組立体
US4813881A (en) Variable insertion force contact
US5716236A (en) System for terminating the shield of a high speed cable
US3879103A (en) Coaxial cable connector for circuit board
US5064389A (en) Electrical slave connector
US5618202A (en) Connector having strip line structure
US20060258213A1 (en) Wire-to-boarad connector
US5785555A (en) System for terminating the shield of a high speed cable
US5775924A (en) Modular terminating connector with frame ground
US4708666A (en) Triaxial to coaxial connector assembly
US5397241A (en) High density electrical connector
JPH01206580A (ja) 同軸遮蔽集積接触コネクタ組立体
US4494816A (en) Coaxial cable connector
EP2701240A1 (fr) Ensemble de connecteur électrique et procédé d'assemblage
US4737888A (en) Receptacle assembly and mounting bracket for circuit board connections
US6305980B2 (en) Cable end connector having accurately positioned connection terminal therein
JPH0119742B2 (fr)
US5997348A (en) Electrical assembly with grounding strip connecting cable screens
US3277422A (en) Electrical connector having shrouded pin contacts
CN112292787A (zh) 高密度连接器
US5910031A (en) Wire to board connector
EP0643448B1 (fr) Connecteur coaxial pour la connexion de plaquettes de circuits imprimés

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920424