US3848948A - Zero insertion levered interference connection - Google Patents

Zero insertion levered interference connection Download PDF

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Publication number
US3848948A
US3848948A US00405730A US40573073A US3848948A US 3848948 A US3848948 A US 3848948A US 00405730 A US00405730 A US 00405730A US 40573073 A US40573073 A US 40573073A US 3848948 A US3848948 A US 3848948A
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US
United States
Prior art keywords
contact surfaces
enlargement
male
female
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 - Lifetime
Application number
US00405730A
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English (en)
Inventor
L 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
Application granted granted Critical
Publication of US3848948A publication Critical patent/US3848948A/en
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
    • H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction

Definitions

  • ABSTRACT A zero insertion force connector comprising a male contact having an elongate body formed with an enlargement at one end portions of which project from opposite sides of the body to define male contact surfaces of a female contact, the enlargement being formed with an open-ended slot extending from its free end between the contact surfaces and the separation of the male contact surfaces being greater than the female contact surfaces so that the enlargement is receivable between the female contact surfaces at one angle with minimum interference and rotatable to engage the male and female contact surfaces with maximum interference with resilient flexure of the male contact surfaces towards each other.
  • An electrical connector comprises male and female contacts engageable by elastic deformation of the male contact, the female contact having a pair of spaced contact surfaces for receiving the male contact between them;
  • the male contact comprising an elongate body formed with an enlargement at its free end projecting from opposite sides of the body, distal parts of the enlargement on opposite sides of the body defining male contact surfaces spaced apart by a distance greater than the spacing between the female contact surfaces, parts of the enlargement proximal to the contact surfaces falling within a circular envelope of diameter equal to the spacing between and passing through the male contact surfaces, a slot extending into the enlargement longitudinally be tween the male contact surfaces from an end of the enlargement remote from the body, the arrangement being such that the body can be oriented at a first inclination relative to the female contact for insertion of the enlargement into the female contact with minimum interference between the enlargement and the female contact surfaces, and thereafter can be reoriented by rotation relative to the female contact to present maximum interference and elastically to deform the male contact surfaces
  • the female contact surfaces in relaxed condition are spaced apart by a distance greater than the parts of the enlargement proximal to the male contact faces and diametrically opposite in relation to the circular envelope so that the male contact can be so oriented in relation to the female contact to present zero or negative interference between the male and female contact surfaces and zero insertion or withdrawal forces.
  • the male contact surfaces can be extended to correspond with the circular envelope, and the enlargement can be formed with straight side portions extending from the contact surfaces towards the body.
  • the enlargement can be of generally square form defined by a pair of generally triangular arms spaced by the slot.
  • the relaxed distance between the female contact surfaces may be intermediate the distance between opposite sides of the rectangular pattern and the diameter of the circular envelope.
  • Both the male and female contacts may be formed as springs to facilitate resilient deformation on interfer ence between the male and female contact faces.
  • the male contact or an associated housing and the female contact or an associated housing are suitably formed with interfitting latch means arranged releasably to secure the male and female contacts in a relative condition of maximum interference.
  • the male contact is suitably supported in an associated housing at a portion distal from the enlargement, and the male contact body is suitably reduced in thickness adjacent the support to provide increased flexibility at the reduced portion for accommodation of slight displacements between the supported portion and the female contact.
  • This is useful in a multi-contact connector Where there may be slight variations from the desired positioning of the contacts due to manufacturing tolerances. These variations are accommodated by the flexure of the male contact bodies.
  • FIG. 1 is a side elevation of male and female contacts before engagement
  • FIG. 2 is a view similar to FIG. 1 but of the contacts in an initial position of engagement
  • FIG. 3 is a view similar to FIG. 2 but of the contacts fully engaged
  • FIG. 4 is a fragmentary view of the assembly of FIG. 1 to an enlarged scale
  • FIG. 5 is a side elevation of an alternative connection
  • FIG. 6 is an end view of the connection of FIG. 4.
  • a male contact I is releasably matable with a female contact 2.
  • the contacts are suitably mounted in respective insulating housings or support members, not shown.
  • the female contact 2 is formed as a rigid fork having a pair of arms presenting a pair of opposed generally parallel contact surfaces 3 spaced by a distance A.
  • the male contact 1 comprises an elongate body 7 formed at one end with an enlarged head'4 and at the other end with a reduced thickness section 8 extending from a support portion 6.
  • the enlarged end 4 is formed with a slot 9 open at the forward end and extending rearwardly of the enlargement 4.
  • the enlargement is of generally square form, having one diagonal extending axially of the body 7 and the other diagonal extending perpendicular to the body 7 to define generally triangular arm portions presenting contact areas 5 at the distal apices spaced by a distance B greater than A.
  • the contact areas 5 are suitably curved in convex arcuate manner to coincide with the circular envelope of radius R as seen in FIG. 4 which permits a constant contact face to be maintained under slight angular misalignment of the male and female contacts.
  • Opposite sides of the square form are spaced by a distance D which is less than A.
  • the projected distance B perpendicular to the contact faces 3 of the female contact, D in FIG. 4 may be equal to or slightly less than A.
  • the enlarged end 4 of the male contact 1 may be inserted into the female contact 2 without or substantially without frictional engagement with the contact surfaces 3.
  • a turning force F is applied to the supported end 6 of the male contact to rotate the enlargement 4 within the female contact 2, an interference fit is developed between the dimensions A and B such that the arms of the enlargement 4 are urged resiliently together partially to close the slot 9 as shown in FIG. 3, when B becomes greater than A.
  • the body 7 is 2, and then withdrawn.
  • the contacts 1 and 2 may form parts of a multiple contact connector having a row of female contacts 2 in one housing part, and a row of male contacts I in another housing part. Due to manufacturing tolerances it is probable that there will be slight displacements of the contacts from the optimum positions.
  • the reduced section 8 allows for increased flexibility of the male contact bodies 7 to accommodate slight lateral displacements between the longitudinal axis at the support end 6 and at the female contact, without adversely affecting the torque applied by force F at the support end 6 to rotate the enlarged end 4 within the female contact FIGS. 1 to 3, the female contact 2 is formed as a resilient receptacle of generally C-shape section and having a longitudinal slot 10 along one side which side projects forwardly of the receptacle portion at projection 11.
  • the body 1 of the male contact is formed with a lateral pin 12.
  • the enlargement is inserted into the C-shaped receptacle and'on turning the male contact 1, there is flexure of both the receptacle and the male contact enlargement.
  • the pin 12 engages with the slot 10 in the projection 11 to latch the male contact 1 in fully engaged condition in a snapfit.
  • An electrical connector comprising male and female contacts engageable by elastic deformation of the male contact, the female contact having a central axis and having a pair of spaced contact surfaces extending parallel to said axis for receiving the male contact between them;
  • the male contact comprising an elongate body formed with an enlargement at its free end projecting from opposite sides of the body, distal parts of the enlargement on opposite sides of the body defining male contact surfaces spaced apart by a distance greater than the spacing between the female contact surfaces, parts of the enlargement proximal to the contact surfaces falling within a circular envelope of diameter equal to the spacing between and passing through the male contact surfaces, a slot extending into the enlargement longitudinally between the male contact surfaces from an end of the enlargement remote from the body, the arrangement being such that the body can be oriented at a first inclination relative to said axis'the female contact for insertion of the enlargement into the female contact with minimum interference between the enlargement and the female contact surfaces, and thereafter can be reoriented by rotation relative to
  • An electrical connector as claimed in claim I in which the enlargement is of generally square form, defined by a pair of generally triangular arms spaced by the slot, one diagonal of the square extending perpendicular to and the other longitudinally of the body.

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)
US00405730A 1972-10-18 1973-10-11 Zero insertion levered interference connection Expired - Lifetime US3848948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL727214078A NL150627B (nl) 1972-10-18 1972-10-18 Elektrische verbindingsinrichting met een bekvormig opneemcontact en een daarin te voeren insteekcontact met verbrede kop, waarbij het insteekcontact met een versmald gedeelte vrijliggend in het opneemcontact kan worden gestoken en na verdraaiing veerkrachtig wordt vastgehouden.

Publications (1)

Publication Number Publication Date
US3848948A true US3848948A (en) 1974-11-19

Family

ID=19817177

Family Applications (1)

Application Number Title Priority Date Filing Date
US00405730A Expired - Lifetime US3848948A (en) 1972-10-18 1973-10-11 Zero insertion levered interference connection

Country Status (16)

Country Link
US (1) US3848948A (ja)
JP (1) JPS5732474B2 (ja)
AR (1) AR199007A1 (ja)
AT (1) AT338907B (ja)
AU (1) AU476314B2 (ja)
BE (1) BE806117A (ja)
BR (1) BR7307911D0 (ja)
CA (1) CA1015423A (ja)
DE (1) DE2351659C2 (ja)
ES (1) ES196378Y (ja)
FR (1) FR2204057B1 (ja)
GB (1) GB1440778A (ja)
HK (1) HK20279A (ja)
IT (1) IT993949B (ja)
NL (1) NL150627B (ja)
SE (1) SE393000B (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022362A1 (en) * 1979-07-06 1981-01-14 Leonard Katzin Zero insertion force electrical connector
US4596438A (en) * 1981-12-23 1986-06-24 Asea Aktiebolag Plug-in contact device
EP1182733A2 (en) * 2000-08-18 2002-02-27 Tyco Electronics AMP GmbH Electrical contact system
US20110159743A1 (en) * 2009-12-30 2011-06-30 Johnescu Douglas M Eye-of-the-needle mounting terminal
US20160093963A1 (en) * 2013-04-18 2016-03-31 Fci Americas Technology Llc Electrical connector system
US20170264040A1 (en) * 2016-03-11 2017-09-14 Dell Products L.P. Systems and methods for frequency shifting resonance of connector stubs
CN107611726A (zh) * 2017-09-07 2018-01-19 芜湖皖江知识产权运营中心有限公司 电动汽车充电桩插头插座装置
CN107623209A (zh) * 2017-09-07 2018-01-23 芜湖皖江知识产权运营中心有限公司 一种电动汽车充电桩插头插座结构
US20210021071A1 (en) * 2019-07-15 2021-01-21 Abb Schweiz Ag Electrical connector between a bus and a circuit breaker
US20210350993A1 (en) * 2020-05-06 2021-11-11 Abb Schweiz Ag Electrical connector with non-linear spring force

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171468U (ja) * 1982-05-12 1983-11-16 株式会社三渡工業所 蓋開閉装置
JPS63111574U (ja) * 1987-01-14 1988-07-18
DE4216809C2 (de) * 1992-05-21 2002-10-24 Elco Europ Gmbh Hochstromkontakt für elektrische Kontaktsteckvorrichtungen
FR2782577B1 (fr) * 1998-08-24 2000-11-17 Framatome Connectors Int Connecteur avec fiche et embase a faible force d'insertion, notamment du type a contacts broche/lyre
FR2782576B1 (fr) 1998-08-24 2000-10-20 Framatome Connectors Int Connecteur electrique a faible force d'insertion notamment a contacts a lame, pour circuit souple
JP7232416B2 (ja) * 2019-08-09 2023-03-03 株式会社オートネットワーク技術研究所 雌端子

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1334084A (en) * 1918-06-12 1920-03-16 North East Electric Co Electric connection
GB610347A (en) * 1946-03-16 1948-10-14 George Edward Duke Improvements in pin-and-socket electric couplings
FR1247942A (fr) * 1958-10-01 1960-12-09 Enfichage électrique à douille spéciale
US3581272A (en) * 1968-12-23 1971-05-25 Bunker Ramo Miniature connector
US3675187A (en) * 1970-10-05 1972-07-04 Gen Motors Corp Ball and socket electrical connector means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268849A (en) * 1963-07-26 1966-08-23 Rca Corp Electrical connectors
US3588789A (en) * 1969-07-10 1971-06-28 Bunker Ramo Miniature connector construction
CA918772A (en) * 1970-01-20 1973-01-09 The Bunker-Ramo Corporation Miniature connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1334084A (en) * 1918-06-12 1920-03-16 North East Electric Co Electric connection
GB610347A (en) * 1946-03-16 1948-10-14 George Edward Duke Improvements in pin-and-socket electric couplings
FR1247942A (fr) * 1958-10-01 1960-12-09 Enfichage électrique à douille spéciale
US3581272A (en) * 1968-12-23 1971-05-25 Bunker Ramo Miniature connector
US3675187A (en) * 1970-10-05 1972-07-04 Gen Motors Corp Ball and socket electrical connector means

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022362A1 (en) * 1979-07-06 1981-01-14 Leonard Katzin Zero insertion force electrical connector
US4596438A (en) * 1981-12-23 1986-06-24 Asea Aktiebolag Plug-in contact device
EP1182733A2 (en) * 2000-08-18 2002-02-27 Tyco Electronics AMP GmbH Electrical contact system
EP1182733A3 (en) * 2000-08-18 2002-06-26 Tyco Electronics AMP GmbH Electrical contact system
US20110159743A1 (en) * 2009-12-30 2011-06-30 Johnescu Douglas M Eye-of-the-needle mounting terminal
US8313344B2 (en) * 2009-12-30 2012-11-20 Fci Americas Technology Llc Eye-of-the-needle mounting terminal
US20160093963A1 (en) * 2013-04-18 2016-03-31 Fci Americas Technology Llc Electrical connector system
US20170264040A1 (en) * 2016-03-11 2017-09-14 Dell Products L.P. Systems and methods for frequency shifting resonance of connector stubs
US10522930B2 (en) * 2016-03-11 2019-12-31 Dell Products L.P. Systems and methods for frequency shifting resonance of connector stubs
CN107611726A (zh) * 2017-09-07 2018-01-19 芜湖皖江知识产权运营中心有限公司 电动汽车充电桩插头插座装置
CN107623209A (zh) * 2017-09-07 2018-01-23 芜湖皖江知识产权运营中心有限公司 一种电动汽车充电桩插头插座结构
US20210021071A1 (en) * 2019-07-15 2021-01-21 Abb Schweiz Ag Electrical connector between a bus and a circuit breaker
US10985487B2 (en) * 2019-07-15 2021-04-20 Abb Schweiz Ag Electrical connector between a bus and a circuit breaker
US20210350993A1 (en) * 2020-05-06 2021-11-11 Abb Schweiz Ag Electrical connector with non-linear spring force
US11651921B2 (en) * 2020-05-06 2023-05-16 Abb Schweiz Ag Electrical connector with non-linear spring force

Also Published As

Publication number Publication date
FR2204057B1 (ja) 1978-11-10
AU6106673A (en) 1975-04-10
FR2204057A1 (ja) 1974-05-17
GB1440778A (en) 1976-06-23
JPS5732474B2 (ja) 1982-07-10
ATA876173A (de) 1977-01-15
CA1015423A (en) 1977-08-09
ES196378U (es) 1975-03-01
ES196378Y (es) 1975-07-16
IT993949B (it) 1975-09-30
JPS4973695A (ja) 1974-07-16
NL150627B (nl) 1976-08-16
AR199007A1 (es) 1974-07-31
HK20279A (en) 1979-04-06
BR7307911D0 (pt) 1974-07-11
AT338907B (de) 1977-09-26
DE2351659A1 (de) 1974-04-25
BE806117A (fr) 1974-04-16
DE2351659C2 (de) 1982-03-11
SE393000B (sv) 1977-04-25
NL7214078A (ja) 1974-04-22
AU476314B2 (en) 1976-09-16

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