EP0020120A1 - Dispositif mécanique de serrage pour circuits électriques plats - Google Patents

Dispositif mécanique de serrage pour circuits électriques plats Download PDF

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Publication number
EP0020120A1
EP0020120A1 EP80301738A EP80301738A EP0020120A1 EP 0020120 A1 EP0020120 A1 EP 0020120A1 EP 80301738 A EP80301738 A EP 80301738A EP 80301738 A EP80301738 A EP 80301738A EP 0020120 A1 EP0020120 A1 EP 0020120A1
Authority
EP
European Patent Office
Prior art keywords
members
contact pads
contact
pressure
connector assembly
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Withdrawn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
EP80301738A
Other languages
German (de)
English (en)
Inventor
Kenneth B. Baldwin
Leslie L. Kerek
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of EP0020120A1 publication Critical patent/EP0020120A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • H01R12/61—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to flexible printed circuits, flat or ribbon cables or like structures
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member

Definitions

  • the present invention relates to means for interconnecting electrical cables or electrical cables and components together without use of conventional, frictionally engaging electrical connectors.
  • the present invention overcomes this and other problems by providing an arrangement whereby the pressure necessary to mate the elctrical contacts is a sustained continuous pressure, even during such extreme temperature cycling as between -85°F and 392°F (-65°C and 200°C). It incorporates a cap which applies continuous pressure on the circuitry and electrical contacts, preferably by means of a screw and one or more wave or curved washers. The extent of pressure may involve a screw clamping down on the circuitry either to a mechanical stop or to a specific torque value.
  • an object of the present invention to provide an electrical connector clamping system which is capable of providing continuous pressure upon mating electrical contacts.
  • Another object is to provide for such continuous pressure which is sustainable during extreme temperature cycling, e.g., from -85°F to 392°F (-65°C to 200°C).
  • Another object is to provide for such sustained con- .tinuous pressure which is capable of being precisely applied.
  • Another object is to provide for such precise pressure which is not easily susceptible to operator error.
  • a mechanical clamping device 10 includes a base plate 12 and pressure cap 14, between which a pair of flat electrical cables or circuits 16 and 18 are clamped together.
  • Such circuits 16 and 18 are configured as shown in our British Patent 1,563,139 : or United States Patent No. 4,125,310, patented November 14, 1978.
  • Cables 16 and 18 may be fabricated from identically chemically milled thin metallic wafers, in which wafer 18 is plated with metallic buttons 20, or formed with equivalent deformations so that, when the two wafers are placed opposing each other and pressed between base plate 12 and pressure cap 14, contact is made only by the buttons.
  • the plastic memory of the buttons is used as a spring, which is correlated with a force applied by the opposing plates, as will be further hereinafter described.
  • Base plate 12 is formed with a stepped hole 22 into which a nut 24 is inserted and retained, such as by a press fit. Alternatively, hole 22 may be threaded directly.
  • a plurality of surrounding holes 26 extend through the base plate, into which registration pins 28 are press.fit or otherwise secured. Both pins 28 and nut 24 extend above the .,surface 30 of the base plate in order to pass through holes 32 and 34 in cables 16 and 18 in order to properly register and align the mating contacts thereof.
  • Pressure cap 14 is similarly provided with holes 36 and 38 which respectively align with holes 22 and 26.
  • the pressure cap is further provided with a recess 40 into which a screw retaining ring 42 is placed and secured, such as by a press fitting.
  • the retaining ring has a dished configuration to provide a bowl-shaped interior 44 surrounded by circular walls 46. Walls 46 are disposed to touch the bottom 48 of recess 40 of pressure cap 14.
  • dish-shaped retaining ring 42 and pressure cap 14 form a compartment 50.
  • a bolt 52 having a head 54.
  • the head extends through an opening 56 in retaining ring 42 and is provided with a hexagonal opening 68 (see FIG. 1) for engagement with an allen head wrench.
  • At least one shoulder 58 underlies head 54.
  • the bolt is completed by a shank 60, which extends through hole 36 of pressure cap 14, and a threaded terminus 62 which is threadedly engageable with nut 24.
  • shank 60 is provided with an end surface 64 which is disposed to abut against an end surface 66 of nut 24 so that, when bolt 52 is fully screwed into nut 24, shoulders 64 and 66 abut to form a mechanical stop.
  • curved spring washers 70 Sandwiched between shoulder 58 of bolt 52 and bottom surface 48 of pressure cap recess 40 are one or more curved spring washers 70. These washers are formed preferably of a commercially available high carbon steel. The particular curved spring washers used conform to MIL SPEC S46049, No. 1075. Such spring washers have a free standing height of 0.044 inches (0.11 cm) which, when preloaded to 0.024 inches (0.06 cm).provide a load of one pound (0.45 kg). In the present invention, it is desired to press the spring washer to 0.009 or 0.010 inches (0.2 to 0.3 cm) to provide a preloaded height of about 0.018 inches (0.05 cm), which results in a load of about 8 pounds (3.63 kg).
  • circuitry 16 and 18 are aligned and oriented with respect to each other when they are slipped over pins 28 onto base plate 12.
  • Pressure cap 14 as assembled with retaining ring 42, bolt 52 and washers 70, is then located over base plate aligning pins 28 and is clamped down over circuitry 16 and 18 by screwing bolt 52 into nut 24 to either a predetermined torque value or to a positive stop when surfaces 64 and 66 contact.
  • the pressure cap thus is capable of exerting a continuous pressure within a prescribed range upon the contacts of cables 16 and 18 over a wide temperature range without failure.
  • Actual test results showed that repeated connect and disconnect between contacts on cables 16 and 18 in this system performed without failure or set through temperature ranges of -85°F to 392°F (-65°C to 200°C).

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
EP80301738A 1979-05-23 1980-05-23 Dispositif mécanique de serrage pour circuits électriques plats Withdrawn EP0020120A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4156679A 1979-05-23 1979-05-23
US41566 1993-04-02

Publications (1)

Publication Number Publication Date
EP0020120A1 true EP0020120A1 (fr) 1980-12-10

Family

ID=21917198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80301738A Withdrawn EP0020120A1 (fr) 1979-05-23 1980-05-23 Dispositif mécanique de serrage pour circuits électriques plats

Country Status (1)

Country Link
EP (1) EP0020120A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073528A2 (fr) * 1981-09-02 1983-03-09 Litton Systems, Inc. Connecteur pour une membrane souple
FR2607973A2 (fr) * 1986-02-11 1988-06-10 Connexion Ste Nouvelle Dispositif de connexion electrique de cables en nappe largables
US5579729A (en) * 1994-02-18 1996-12-03 Dr. Ing. H.C.F. Porsche Ag Internal combustion engine
US8025317B2 (en) 2006-05-31 2011-09-27 Visteon Global Technologies, Inc. Axially sealing system for connecting fluid-passed conduits
CN108155491A (zh) * 2017-12-26 2018-06-12 台州西普电气有限公司 接电装置
CN108152541A (zh) * 2017-12-26 2018-06-12 台州西普电气有限公司 用于软启动器性能测试设备的接电装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912118C (de) * 1952-03-22 1954-05-24 Basf Ag Anordnung zum Einstellen eines guenstigen Kontaktdruckes bei loesbaren elektrischen Verbindungen
DE1142923B (de) * 1960-11-18 1963-01-31 Krone Kg Verbindung von elektrischen Bauelementen mit den Leitungsbahnen einer gedruckten oder geaetzten Schaltung
US3271627A (en) * 1964-12-29 1966-09-06 Gen Motors Corp Arrangement for connecting electrical controls to printed circuits
US3629787A (en) * 1970-06-19 1971-12-21 Bell Telephone Labor Inc Connector for flexible circuitry
DE2259127A1 (de) * 1972-12-02 1974-06-06 Vdo Schindling Vorrichtung zum loesbaren verbinden von auf einer flexiblen leiterplatte befindlichen leiterbahnen mit leitungen
US4125310A (en) * 1975-12-01 1978-11-14 Hughes Aircraft Co Electrical connector assembly utilizing wafers for connecting electrical cables
GB1563139A (en) * 1975-12-01 1980-03-19 Hughes Aircraft Co Electrical connector assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912118C (de) * 1952-03-22 1954-05-24 Basf Ag Anordnung zum Einstellen eines guenstigen Kontaktdruckes bei loesbaren elektrischen Verbindungen
DE1142923B (de) * 1960-11-18 1963-01-31 Krone Kg Verbindung von elektrischen Bauelementen mit den Leitungsbahnen einer gedruckten oder geaetzten Schaltung
US3271627A (en) * 1964-12-29 1966-09-06 Gen Motors Corp Arrangement for connecting electrical controls to printed circuits
US3629787A (en) * 1970-06-19 1971-12-21 Bell Telephone Labor Inc Connector for flexible circuitry
DE2259127A1 (de) * 1972-12-02 1974-06-06 Vdo Schindling Vorrichtung zum loesbaren verbinden von auf einer flexiblen leiterplatte befindlichen leiterbahnen mit leitungen
US4125310A (en) * 1975-12-01 1978-11-14 Hughes Aircraft Co Electrical connector assembly utilizing wafers for connecting electrical cables
GB1563139A (en) * 1975-12-01 1980-03-19 Hughes Aircraft Co Electrical connector assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, Vol. 10, No. 6, November 1967 New York (US) M.E. ECKER: "Connector for memory planes" page 786 * page 786 * *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073528A2 (fr) * 1981-09-02 1983-03-09 Litton Systems, Inc. Connecteur pour une membrane souple
EP0073528A3 (fr) * 1981-09-02 1983-04-13 Litton Systems, Inc. Connecteur pour une membrane souple
FR2607973A2 (fr) * 1986-02-11 1988-06-10 Connexion Ste Nouvelle Dispositif de connexion electrique de cables en nappe largables
US5579729A (en) * 1994-02-18 1996-12-03 Dr. Ing. H.C.F. Porsche Ag Internal combustion engine
US8025317B2 (en) 2006-05-31 2011-09-27 Visteon Global Technologies, Inc. Axially sealing system for connecting fluid-passed conduits
CN108155491A (zh) * 2017-12-26 2018-06-12 台州西普电气有限公司 接电装置
CN108152541A (zh) * 2017-12-26 2018-06-12 台州西普电气有限公司 用于软启动器性能测试设备的接电装置

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

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AK Designated contracting states

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19810609

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

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18W Application withdrawn

Withdrawal date: 19820716

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BALDWIN, KENNETH B.

Inventor name: KEREK, LESLIE L.