US3378813A - Electrically conductive coupling - Google Patents

Electrically conductive coupling Download PDF

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Publication number
US3378813A
US3378813A US518694A US51869466A US3378813A US 3378813 A US3378813 A US 3378813A US 518694 A US518694 A US 518694A US 51869466 A US51869466 A US 51869466A US 3378813 A US3378813 A US 3378813A
Authority
US
United States
Prior art keywords
coupling
plug
stack
turn
socket
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
US518694A
Other languages
English (en)
Inventor
Eichenberger Ernst
Ramel Rudolf
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.)
Motor Columbus AG
Original Assignee
Motor Columbus AG
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
Priority claimed from AT31465A external-priority patent/AT254967B/de
Priority claimed from AT1043665A external-priority patent/AT266242B/de
Application filed by Motor Columbus AG filed Critical Motor Columbus AG
Application granted granted Critical
Publication of US3378813A publication Critical patent/US3378813A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/02—Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter

Definitions

  • ABSTRACT OF THE DISCLOSURE This invention relates to couplings for connecting electrical conductors, and particularly to a coupling of the plug-and-socket type in which a plug or male coupling member may be inserted into a recess of a socket or female member for connecting conductors attached to the coupling members.
  • An object of the invention is the porvision of a coupling particularly useful for connecting rigid conduc tors and allowing for limited relative movement of the conductors due to thermal expansion and contraction and the like without impairing the conductivity of the coupling.
  • Another object is the provision of a coupling suitable for carrying heavy currents, yet capable of being engaged in a simple manner without requiring tools nor much manual effort.
  • the invention in one of its aspects mainly resides in the provision of a resilient contact arrangement including several stacks of spring wire, each stack having several wire turns elongated in the direction of inward and outward movement of the plug in the recess of the socket.
  • the plug and socket have respective conductive faces which spacedly face each other when the plug is inserted in the recess of the socket.
  • the contact arrangement is secured to one of these faces in such a position that the two longitudinal portions of each turn abut-tingly engage the two conductive faces when the plug is in the recess of the socket, the turn portion engaging the plug being spaced inward of the recess from the turn portion engaging the socket.
  • each stack is juxtaposed transversely of the direction of plug movement and transversely of the afore-mentioned inward direction, and the stack as such is elongated in the direction of plug movement, and its length is greater than its width, and greater than its height which is in the afore-mentioned inward direction.
  • Each stack is secured to the associated conductive face by a frame which is open in the inward direction and oppositely thereto, and Whose height is smaller than that of the received stack.
  • the several stacks are preferably spacedly distributed in a plane perpendicular to the direction of plug movement.
  • the ratio of length and height of each turn must be at least 2:1, but is preferably between 5:1 and 8:1 for best results.
  • FIG. 1 shows a detail of the coupling of FIG. 2 in enlarged perspective view
  • FIG. 2 shows a disengaged coupling of the invention in side elevation
  • FIG. 3 shows the coupling of FIG. 2 in the engaged condition in section on a line corresponding to line III-III in FIG. 2.
  • a coupling of the invention including a solid, cylindrical, conductive plug 109 and a tubular, cylindrical, conductive socket 111 whose internal diameter is greater than the external diameter of the plug 109.
  • contact between the coupling members is provided by multiple spring stacks 101 of which one is shown in FIG. 1 in perspective view.
  • the stack consists of a multiplicity of identical wire turns each of which is substantially elliptic in the relaxed condition illustrated. The several turns have a common perpendicular axis and are axially contiguous-1y juxtaposed.
  • the height 105 of the stack is less than one fifth of its length, the height and length of the stack corresponding to the major and minor axes of the ellipse formed by each turn.
  • the stack has about 15 turns of silver-plated round beryllium copper wire, and the width of the stack perpendicular to its height and length is greater than the height, but smaller than the length.
  • the stack is enveloped by a frame 103 which extends about the stack in the direction of length and width of the latter, but is open in the direction of stack height.
  • the corresponding height 107 of the frame 103 is smaller than the height 105 of the stack.
  • the narrow walls of the frame 103 have marginal recesses 1-15 the purpose of which will presently become apparent.
  • FIGS. 2 and 3 show two groups of spring stacks 101 arranged in respective annular zones 113 of the plug 109 and axially secured by retaining rings 117.
  • Each stack 101 is held in its frame 103 which is oriented in such a manner that its longitudinal Walls extends in the direction of the plug axis and abuttingly engage the plug surface.
  • the recesses 115 in the narrow walls of the frame 103 accommodate the curvature of the: plug surface as best seen in FIG. 3.
  • each stack 101 The several turns of each stack 101 are elongated in the direction of the plug axis, and each turn projects from the associated frame 103 in opposite radial directions simultaneously to engage the plug and the socket 111 under compressive stress.
  • the rings 117 are radially dimensioned to guide the plug 109 during coaxial insertion into the socket 111. It will be appreciated that the outer faces of the several spring stacks 101, when in the relaxed condition, define a cylindrical surface [having a greater diameter than the internal diameter of the socket 111. When compressed, their turns are approximately kidneyshaped.
  • the stacks 101 and the associated frames 103 may be employed with plug-and-socket type couplings whose members may have any configuration, and the showing of cylindrical members in FIGS. 2 and 3 will be understood to be merely illustrative.
  • the number of stacks 101 which occupy but very little space may be selected freely to obtain the necessary current-carrying capacity.
  • the useful length of life of the spring stacks 101 depends to a substantialy extent on the orientation of the wire turns in the direction of relative movement of the coupling members during engagement and disengagement.
  • a conductive coupling comprising, in combination:
  • said coupling members having respective conductive faces extending in said direction and spacedly facing each other when said male coupling member is inserted in said recess;
  • resilient contact means including a plurality of stacks of spring wire
  • each stack including a plurality of wire turns elongated in said direction, each turn having two longitudinal portions;
  • each of said turns being resiliently deformed from the relaxed condition thereof when simultaneously abuttingly engaging said faces.
  • said securing means include a plurality of frames, each frame being open in said inward direction and oppositely there to, and receiving a respective stack therein, the height of said frame in said inward direction being smaller than the height of the received stack.
  • said one conductive face is of convexly arcuate across section about an axis extending in said predetermined direction
  • said frame has two axial walls and two narrow walls transverse of said axial walls and connecting the same, each narrow wall having a recess accommodating the curvature of said one face.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US518694A 1965-01-15 1966-01-04 Electrically conductive coupling Expired - Lifetime US3378813A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT31465A AT254967B (de) 1965-01-15 1965-01-15 Stromleitende Steckverbindung
AT1043665A AT266242B (de) 1965-11-19 1965-11-19 Stromleitende Steckverbindung

Publications (1)

Publication Number Publication Date
US3378813A true US3378813A (en) 1968-04-16

Family

ID=25592289

Family Applications (1)

Application Number Title Priority Date Filing Date
US518694A Expired - Lifetime US3378813A (en) 1965-01-15 1966-01-04 Electrically conductive coupling

Country Status (6)

Country Link
US (1) US3378813A (enrdf_load_html_response)
CH (1) CH447304A (enrdf_load_html_response)
DE (1) DE1540202B1 (enrdf_load_html_response)
FR (1) FR1469229A (enrdf_load_html_response)
GB (1) GB1126984A (enrdf_load_html_response)
SE (1) SE313098B (enrdf_load_html_response)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810213A (en) * 1975-01-30 1989-03-07 Square D Company Low resistance electrical connecting assembly
DE3721965A1 (de) * 1987-07-03 1989-01-12 Stewing Gmbh & Co Kg Kabelendstecker fuer den aussenleiter eines koaxialkabels
FR2622361B1 (fr) * 1987-10-22 1991-06-14 Souriau & Cie Connecteur electrique pour le passage de courants de tres fortes intensites et de courtes durees
DE3926042A1 (de) * 1989-08-07 1991-02-14 Bodo D Sperling Elektrische-kontakt-steckverbindung
FR2688338B1 (fr) * 1992-03-06 1997-04-04 Alsthom Gec Dispositif de contact annulaire electrique, en particulier pour disjoncteur.
DE19718448B4 (de) * 1997-04-30 2009-02-05 The Whitaker Corp., Wilmington Elektrischer Steckverbinder
DE102008061934B4 (de) * 2008-12-12 2011-02-24 Tyco Electronics Amp Gmbh Hochstromsteckverbinder
CN101577394B (zh) * 2009-04-27 2010-10-13 李贵阳 工业插头插座外壳的加工方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524663A (enrdf_load_html_response) * 1953-11-21
US1236766A (en) * 1914-07-13 1917-08-14 Westinghouse Electric & Mfg Co Connector.
GB186526A (en) * 1921-10-18 1922-10-05 George Ellison Improvements relating to electric switches and the like
US2154275A (en) * 1935-12-07 1939-04-11 Siemens Ag Electrode supporting structure
US2280728A (en) * 1939-11-24 1942-04-21 Rca Corp Telescoping high frequency electrical conductor
US2379047A (en) * 1942-05-01 1945-06-26 Bell Telephone Labor Inc Bridging conductor
US2521722A (en) * 1944-02-02 1950-09-12 Hubbell Inc Harvey Single conductor locking connector
FR997233A (fr) * 1945-06-20 1952-01-03 Vasselin & Cie Ets Prise de courant électrique
US2882514A (en) * 1955-10-11 1959-04-14 Bell Telephone Labor Inc Electric circuit connector
DE1071799B (enrdf_load_html_response) * 1959-12-24
US3064107A (en) * 1960-10-14 1962-11-13 Mc Graw Edison Co Switching device
US3087038A (en) * 1959-10-19 1963-04-23 Raymond W Bethke Electric current interchange contact

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071799B (enrdf_load_html_response) * 1959-12-24
US1236766A (en) * 1914-07-13 1917-08-14 Westinghouse Electric & Mfg Co Connector.
GB186526A (en) * 1921-10-18 1922-10-05 George Ellison Improvements relating to electric switches and the like
US2154275A (en) * 1935-12-07 1939-04-11 Siemens Ag Electrode supporting structure
US2280728A (en) * 1939-11-24 1942-04-21 Rca Corp Telescoping high frequency electrical conductor
US2379047A (en) * 1942-05-01 1945-06-26 Bell Telephone Labor Inc Bridging conductor
US2521722A (en) * 1944-02-02 1950-09-12 Hubbell Inc Harvey Single conductor locking connector
FR997233A (fr) * 1945-06-20 1952-01-03 Vasselin & Cie Ets Prise de courant électrique
BE524663A (enrdf_load_html_response) * 1953-11-21
US2882514A (en) * 1955-10-11 1959-04-14 Bell Telephone Labor Inc Electric circuit connector
US3087038A (en) * 1959-10-19 1963-04-23 Raymond W Bethke Electric current interchange contact
US3064107A (en) * 1960-10-14 1962-11-13 Mc Graw Edison Co Switching device

Also Published As

Publication number Publication date
FR1469229A (fr) 1967-02-10
CH447304A (de) 1967-11-30
SE313098B (enrdf_load_html_response) 1969-08-04
DE1540202B1 (de) 1972-05-31
GB1126984A (en) 1968-09-11

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