EP0135988B1 - Electrical connector having contacts which have receptacles that conform to inserted pin - Google Patents

Electrical connector having contacts which have receptacles that conform to inserted pin Download PDF

Info

Publication number
EP0135988B1
EP0135988B1 EP19840304527 EP84304527A EP0135988B1 EP 0135988 B1 EP0135988 B1 EP 0135988B1 EP 19840304527 EP19840304527 EP 19840304527 EP 84304527 A EP84304527 A EP 84304527A EP 0135988 B1 EP0135988 B1 EP 0135988B1
Authority
EP
European Patent Office
Prior art keywords
receptacle
contact
mounting portion
housing
arm
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
EP19840304527
Other languages
German (de)
French (fr)
Other versions
EP0135988A1 (en
Inventor
Lucas Soes
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Publication of EP0135988A1 publication Critical patent/EP0135988A1/en
Application granted granted Critical
Publication of EP0135988B1 publication Critical patent/EP0135988B1/en
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
    • H01R13/10—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
    • 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
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • H01R12/675—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals with contacts having at least a slotted plate for penetration of cable insulation, e.g. insulation displacement contacts for round conductor flat cables
    • 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
    • H01R12/70—Coupling devices
    • H01R12/7082—Coupling device supported only by cooperation with PCB
    • 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
    • H01R13/114—Resilient sockets co-operating with pins or blades having a square 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
    • 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
    • H01R13/14—Resiliently-mounted rigid 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
    • 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

Definitions

  • This invention relates to an electrical connector comprising a housing carrying a plurality of receptacle contacts for mating with a corresponding plurality of male contacts.
  • Such tolerances are substantially the same whatever the size of a connector, and are therefore of more significance with a smaller connector. While such tolerances can be compensated for in a large connector relatively easily, compensation is difficult to obtain in a small size connector where a permitted, or the lowest possible, manufacturing tolerance may be large relative to a critical dimension of the connector.
  • a particular problem which occurs is a misalignment between the male-contact-receiving openings of one or more of the receptacle contacts and the associated male contact or contacts of the mating array thereof.
  • Such misalignment can make it impossible for the connector to be mated with the array of male contacts, or can result in mating being achieved only with damage to one or more of the contacts.
  • FR-A-1 354 127 discloses an electrical connector comprising a housing carrying a plurality of receptacle contacts for mating with a corresponding plurality of male contact posts, in which each receptacle contact comprises a receptacle portion defining an opening to receive a mating male contact post; a mounting portion by which the receptacle contact is mounted in the housing; and an intermediate portion by which the receptacle portion is connected to the mounting portion and which permits movement of the receptacle portion relative to the mounting portion within the housing, the receptacle portion of each receptacle contact comprising a pair of opposed resilient arms joined by a bight portion, the free ends of the arms together defining a male contact-receiving opening, the intermediate portion comprising a single resilient straight arm extending from the mounting portion to the bight portion, the complete receptacle contact being stamped and formed from a single piece of sheet metal.
  • the invention is characterised in that the single resilient straight arm of each receptacle contact extends from the mounting portion substantially parallel to the bight portion, and is connected to the bight portion at the junction between one of the arms and the bight portion, the one arm being the arm which is more distant from the mounting portion than the other arm, and the mounting portion being immovably contained in the housing in a press-fit manner, the receptacle portion being capable of limited movement relative to the mounting portion by virtue of the resilient straight arm.
  • each receptacle contact has a wire connection portion by which a wire can be connected to the receptacle contact.
  • the mounting portion has at least one laterally extending end, the wire connection portion comprising at least one wire-receiving slot in the laterally extending end.
  • the connector comprises a housing 1 molded from electrically insulating plastics material and having a plurality of cavities 2 arranged in a row, each to receive a receptacle contact 3.
  • the connector is for mating with a printed circuit board header comprising a row of male contact posts 100 carried by a housing 101 molded from electrically insulating plastics material, each post 100 having a mounting portion 102 for receipt in a hole in a printed circuit board (not shown), and a contact portion 103 for mating with an associated one of the receptacle contacts 3.
  • the housings 1 and 101 are shaped to mate with each other with the contacts 3 and 100 carried thereby mated, the housing 1 being formed with a longitudinally extended rounded rib 4 which is received in a correspondingly shaped groove 104 in the housing 101 to secure the housings together in the mated condition.
  • Each receptacle contact 3 is stamped and formed, in known manner, from a single piece of sheet metal, and comprises a receptacle portion 5 comprising a pair of opposed arms 6 and 7 joined by a bight portion 8 to form a substantially U-shaped receptacle portion, the free ends of the arms 6 and 7 together defining a male-contact-receiving opening 9 for receiving one of the male contact posts 100 to be gripped between the free ends of the arms 6 and 7.
  • the opening 9 of the contact 3 is aligned with a hole 10 in the housing 1 through which hole 10 the post 100 enters the opening 9.
  • Each receptacle contact 3 also comprises a mounting portion 11 by which the contact 3 is secured in its cavity 2 in the housing 1, the mounting portion 11 comprising a plate 12 having opposed end portions 13 and 14 bent at right angles thereto and in the same direction relative thereto, the free edges of the end portions 13 and 14 being formed with projections 15 which engage a wall of the housing 1 and urge the plate 12 against an opposite wall of the housing 1 to secure the contact 3 in its cavity 2 in the housing 1 in a press fit manner.
  • each receptacle contact 3 also constitutes a wire connection portion by which a wire can be connected to the receptacle contact 3, in that each end portion 13 and 14 is formed with a slot 16 or 17 into which an insulated wire (not shown) can be urged transversely of its axis, in known manner, the slot 17 being sized such that the insulation of the wire is penetrated and the conductive core of the wire gripped by the walls of the slot 17 to give an electrical connection, and the slot 16 being sized to grip the insulation of the wire to provide strain relief for the electrical connection provided by the slot 17, all in known manner.
  • each receptacle contact 3 is connected to the mounting portion 11 thereof by an intermediate portion 18 comprising a single straight resilient arm which is connected to the receptacle portion 5 of the receptacle contact 3 adjacent the junction between the arm 6 and the bight portion 8 of the receptacle portion 5.
  • the resilient intermediate portion 18 of each receptacle contact 3 permits movement of the receptacle portion 5 relative to the mounting portion 11, and since the mounting portion is fixed against movement relative to the housing 1, the movement of the receptacle portion 5 is also relative to the housing 1, the cavity 2 in the housing 1 being sized to permit such movement of the receptacle portion 5.
  • the receptacle portions 5 of the receptacle contacts 3 are capable of relative movement in their cavities 2 in the housing 1, and in the event that on mating of the receptacle contacts 3 with the associated male post contacts 100, one or more of the receptacle contact openings 9 is not in correct alignment with the associated post 100, the engagement between that post 100 and the arms 6 and 7 of the associated receptacle portion 5 can move the receptacle portion 5 within its cavity 2 to achieve correct and accurate mating between the post 100 and the receptacle portion 5, without affecting the mating of other posts 100 and their associated receptacle portions 5, and without damaging any of the contacts.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Description

  • This invention relates to an electrical connector comprising a housing carrying a plurality of receptacle contacts for mating with a corresponding plurality of male contacts.
  • With such electrical connectors of small size, for example connectors in which the pitch distance between adjacent receptacle contacts in a row thereof is smaller than 2.5 mm, difficulties arise in compensating for manufacturing tolerances.
  • Such tolerances are substantially the same whatever the size of a connector, and are therefore of more significance with a smaller connector. While such tolerances can be compensated for in a large connector relatively easily, compensation is difficult to obtain in a small size connector where a permitted, or the lowest possible, manufacturing tolerance may be large relative to a critical dimension of the connector.
  • A particular problem which occurs is a misalignment between the male-contact-receiving openings of one or more of the receptacle contacts and the associated male contact or contacts of the mating array thereof. Such misalignment can make it impossible for the connector to be mated with the array of male contacts, or can result in mating being achieved only with damage to one or more of the contacts.
  • FR-A-1 354 127 discloses an electrical connector comprising a housing carrying a plurality of receptacle contacts for mating with a corresponding plurality of male contact posts, in which each receptacle contact comprises a receptacle portion defining an opening to receive a mating male contact post; a mounting portion by which the receptacle contact is mounted in the housing; and an intermediate portion by which the receptacle portion is connected to the mounting portion and which permits movement of the receptacle portion relative to the mounting portion within the housing, the receptacle portion of each receptacle contact comprising a pair of opposed resilient arms joined by a bight portion, the free ends of the arms together defining a male contact-receiving opening, the intermediate portion comprising a single resilient straight arm extending from the mounting portion to the bight portion, the complete receptacle contact being stamped and formed from a single piece of sheet metal.
  • It is an object of the invention to provide an improved electrical connector having the aforesaid known features.
  • Accordingly the invention is characterised in that the single resilient straight arm of each receptacle contact extends from the mounting portion substantially parallel to the bight portion, and is connected to the bight portion at the junction between one of the arms and the bight portion, the one arm being the arm which is more distant from the mounting portion than the other arm, and the mounting portion being immovably contained in the housing in a press-fit manner, the receptacle portion being capable of limited movement relative to the mounting portion by virtue of the resilient straight arm.
  • Suitably the mounting portion of each receptacle contact has a wire connection portion by which a wire can be connected to the receptacle contact.
  • In an embodiment, the mounting portion has at least one laterally extending end, the wire connection portion comprising at least one wire-receiving slot in the laterally extending end.
  • An electrical connector according to this invention will now be described by way of example with reference to the drawing which is a perspective view of the connector with part broken away together with a mating male contact array.
  • Referring to the drawing, the connector comprises a housing 1 molded from electrically insulating plastics material and having a plurality of cavities 2 arranged in a row, each to receive a receptacle contact 3.
  • The connector is for mating with a printed circuit board header comprising a row of male contact posts 100 carried by a housing 101 molded from electrically insulating plastics material, each post 100 having a mounting portion 102 for receipt in a hole in a printed circuit board (not shown), and a contact portion 103 for mating with an associated one of the receptacle contacts 3.
  • The housings 1 and 101 are shaped to mate with each other with the contacts 3 and 100 carried thereby mated, the housing 1 being formed with a longitudinally extended rounded rib 4 which is received in a correspondingly shaped groove 104 in the housing 101 to secure the housings together in the mated condition.
  • Each receptacle contact 3 is stamped and formed, in known manner, from a single piece of sheet metal, and comprises a receptacle portion 5 comprising a pair of opposed arms 6 and 7 joined by a bight portion 8 to form a substantially U-shaped receptacle portion, the free ends of the arms 6 and 7 together defining a male-contact-receiving opening 9 for receiving one of the male contact posts 100 to be gripped between the free ends of the arms 6 and 7. The opening 9 of the contact 3 is aligned with a hole 10 in the housing 1 through which hole 10 the post 100 enters the opening 9.
  • Each receptacle contact 3 also comprises a mounting portion 11 by which the contact 3 is secured in its cavity 2 in the housing 1, the mounting portion 11 comprising a plate 12 having opposed end portions 13 and 14 bent at right angles thereto and in the same direction relative thereto, the free edges of the end portions 13 and 14 being formed with projections 15 which engage a wall of the housing 1 and urge the plate 12 against an opposite wall of the housing 1 to secure the contact 3 in its cavity 2 in the housing 1 in a press fit manner.
  • The mounting portion 11 of each receptacle contact 3 also constitutes a wire connection portion by which a wire can be connected to the receptacle contact 3, in that each end portion 13 and 14 is formed with a slot 16 or 17 into which an insulated wire (not shown) can be urged transversely of its axis, in known manner, the slot 17 being sized such that the insulation of the wire is penetrated and the conductive core of the wire gripped by the walls of the slot 17 to give an electrical connection, and the slot 16 being sized to grip the insulation of the wire to provide strain relief for the electrical connection provided by the slot 17, all in known manner.
  • The receptacle portion 5 of each receptacle contact 3 is connected to the mounting portion 11 thereof by an intermediate portion 18 comprising a single straight resilient arm which is connected to the receptacle portion 5 of the receptacle contact 3 adjacent the junction between the arm 6 and the bight portion 8 of the receptacle portion 5. The resilient intermediate portion 18 of each receptacle contact 3 permits movement of the receptacle portion 5 relative to the mounting portion 11, and since the mounting portion is fixed against movement relative to the housing 1, the movement of the receptacle portion 5 is also relative to the housing 1, the cavity 2 in the housing 1 being sized to permit such movement of the receptacle portion 5.
  • Thus, the receptacle portions 5 of the receptacle contacts 3 are capable of relative movement in their cavities 2 in the housing 1, and in the event that on mating of the receptacle contacts 3 with the associated male post contacts 100, one or more of the receptacle contact openings 9 is not in correct alignment with the associated post 100, the engagement between that post 100 and the arms 6 and 7 of the associated receptacle portion 5 can move the receptacle portion 5 within its cavity 2 to achieve correct and accurate mating between the post 100 and the receptacle portion 5, without affecting the mating of other posts 100 and their associated receptacle portions 5, and without damaging any of the contacts.

Claims (4)

1. An electrical connector comprising a housing (1) carrying a plurality of receptacle contacts (3) for mating with a corresponding plurality of male contact posts (100), in which each receptacle contact (3) comprises a receptacle portion (5) defining an opening (9) to receiving a mating male contact post (100); a mounting portion (11) by which the receptacle contact is mounted in the housing (1); and an intermediate portion (18) by which the receptacle portion (5) is connected to the mounting portion (11) and which permits movement of the receptacle portion relative to the mounting portion within the housing, the receptacle portion (5) of each receptacle contact comprising a pair of opposed resilient arms (6, 7) joined by a bight portion (8), the free ends of the arms together defining a male contact-receiving opening (9), the intermediate portion (18) cbm- prising a single resilient straight arm extending from the mounting portion (11) to the bight portion (8), the complete receptacle contact (3) being stamped and formed from a single piece of sheet metal, characterised in that the single resilient straight arm (18) of each receptacle contact extends from the mounting portion (11) substantially parallel to the bight portion (8); and is connected to the bight portion (8) at the junction between one of the arms (6) and the bight portion (8), the one arm (6) being the arm which is more distant from the mounting (11) portion than the other arm, and the mounting portion (11) being immovably contained in the housing (1) in a press-fit manner, the receptacle portion (5) being capable of limited movement relative to the mounting portion (11) by virtue of the resilient straight arm (18).
2. A connector as claimed in claim 1, characterised in that the mounting portion (11) of each receptacle contact also has a wire connection portion (16, 17) by which a wire can be connected to the receptacle contact.
3. A connector as claimed in claim 1 or claim 2 characterised in that the mounting portion (11) has at least one laterally extending end 13, the wire connection portion (16) comprising at least one wire-receiving slot in the laterally extending end.
4. A connector as claimed in any preceding claim characterised in that the receptacle contacts (3) are disposed at a pitch of less than 2.5 mm.
EP19840304527 1983-08-04 1984-07-02 Electrical connector having contacts which have receptacles that conform to inserted pin Expired EP0135988B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8320987 1983-08-04
GB8320987A GB8320987D0 (en) 1983-08-04 1983-08-04 Electrical connector

Publications (2)

Publication Number Publication Date
EP0135988A1 EP0135988A1 (en) 1985-04-03
EP0135988B1 true EP0135988B1 (en) 1988-03-30

Family

ID=10546775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840304527 Expired EP0135988B1 (en) 1983-08-04 1984-07-02 Electrical connector having contacts which have receptacles that conform to inserted pin

Country Status (10)

Country Link
EP (1) EP0135988B1 (en)
JP (1) JPS60150568A (en)
BR (1) BR8403908A (en)
DE (1) DE3470259D1 (en)
ES (1) ES290660Y (en)
GB (1) GB8320987D0 (en)
HK (1) HK18891A (en)
IE (1) IE55573B1 (en)
MX (1) MX156675A (en)
SG (1) SG10091G (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7922509B2 (en) 2007-06-15 2011-04-12 Tyco Electronics Corporation Surface mount electrical connector having insulated pin

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8908411D0 (en) * 1989-04-13 1989-06-01 Amp Holland Surface mount electrical connector
JP2767478B2 (en) * 1990-02-01 1998-06-18 日本エー・エム・ピー株式会社 Electrical connectors and contacts for electrical connectors
US5352531A (en) * 1990-12-20 1994-10-04 Ozko, Inc. Coating solution for treating basement walls
JPH07123058B2 (en) * 1992-03-02 1995-12-25 モレックス インコーポレーテッド Electrical connector terminal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129580B (en) * 1958-08-14 1962-05-17 Siemens Ag Plug contact spring for rows of contacts
FR1364127A (en) * 1963-05-09 1964-06-19 Souriau & Cie Improvements made to sockets, especially for printed circuits
US3233208A (en) * 1963-09-06 1966-02-01 Elco Corp Contact for direct reception of printed circuit board
NL7315491A (en) * 1973-11-13 1975-05-15 Berg Electronics Bv Contact socket for flat plug - has pair of elastically connected balanced contact points
US3963319A (en) * 1974-12-12 1976-06-15 Amp Incorporated Coaxial ribbon cable terminator
JPS6033584Y2 (en) * 1978-04-12 1985-10-05 富士通株式会社 Contact for connector
JPS57204663U (en) * 1981-06-23 1982-12-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7922509B2 (en) 2007-06-15 2011-04-12 Tyco Electronics Corporation Surface mount electrical connector having insulated pin

Also Published As

Publication number Publication date
MX156675A (en) 1988-09-22
JPS60150568A (en) 1985-08-08
IE55573B1 (en) 1990-11-07
SG10091G (en) 1991-04-05
BR8403908A (en) 1985-07-09
EP0135988A1 (en) 1985-04-03
IE841979L (en) 1985-02-04
GB8320987D0 (en) 1983-09-07
HK18891A (en) 1991-03-22
ES290660U (en) 1986-03-16
JPH053717B2 (en) 1993-01-18
DE3470259D1 (en) 1988-05-05
ES290660Y (en) 1986-10-16

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