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US3601520A - Terminal structure for a multiconductor cable cooled by a circulating fluid - Google Patents

Terminal structure for a multiconductor cable cooled by a circulating fluid Download PDF

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Publication number
US3601520A
US3601520A US854839A US3601520DA US3601520A US 3601520 A US3601520 A US 3601520A US 854839 A US854839 A US 854839A US 3601520D A US3601520D A US 3601520DA US 3601520 A US3601520 A US 3601520A
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US
United States
Prior art keywords
terminals
sealing element
cooling fluid
terminal structure
sealing
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
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US854839A
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English (en)
Inventor
Armand Carasso
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Individual
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Individual
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Publication date
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Publication of US3601520A publication Critical patent/US3601520A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/11—End pieces for multiconductor cables supported by the cable and for facilitating connections to other conductive members, e.g. for liquid cooled welding cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/001—Power supply cables for the electrodes of electric-welding apparatus or electric-arc furnaces

Definitions

  • the present invention relates to electric multiconductor kickless cables for conducting very high intensity currents and cooled by an axially flowing cooling fluid, such as, among others, the cables employed for connecting portable tongs to the resistance-welding stations or the supply cables of electric arc furnaces, or the like.
  • these cables may carry, as the case may be, currents whose intensity can be of the order of l0,000-50,000 a. per phase.
  • the problems created by the sealing are particularly difflcult to solve in respect of the terminals of multiconductor cables in which the two polarities of the conductors are grouped under the same outer sheath, but separated from each other by a separating element, the conductors of the two polarities being either opposed or alternating.
  • these terminals are made in two semicylindrical parts insulated from each other but interconnected in a sealed manner.
  • each of the two parts of the terminal comprises an inner semicylindrical axial passage communicating with the inner end face of the terminal and opening at its other end in a tapped aperture for the inlet of the cooling fluid, this axial passage serving to being the fluid on the axis of the cable and also being capable of serving as a departure point of radial branch passages for the fluid which enables the periphery of the bundle of conductors to be irrigated.
  • sealing elements are generally disposed in a recess provided for this purpose in each part of the terminal, but this arrangement is only effective if there is a precise positioning of the various clamping planes, which precision is liable to be easily destroyed, in operation, under the action of the various electromechanical forces to which the cable is subjected.
  • the object of the invention is to provide a terminal structure having a sealing device which is easy to make and efficient and reliable in service.
  • the terminal structure according to the invention comprises two terminal parts having plane faces, an elastically yieldable insulating element which is interposed between said faces and constitutes a sealing element in the extension of an element separating the conductors of the phases, means clamping said terminal parts to form an assembly by, compression of said elastically yieldable element, and at least one rigid incompressible insulating element having athickness less than the thickness of the elastically yieldable element in the free uncompressed state and constituting an abutment limiting the pressure exerted on said elastically yieldable element when clamping said two parts together.
  • said sealing element has a plurality of openings in each of which is disposed a rigid incompressible insulating element having a thickness less than that of said sealing element in the free uncompressed state.
  • FIG. 1 is a perspective view, with a part cut away, of an end terminal for a multiconductor cable having opposed polarities including a sealing element according to the invention
  • FIG. 2 is an exploded perspective view showing the arrangement of the various parts
  • FIG. 3 is a view of a modification of the sealing device disposed between the two halves of the terminal.
  • the invention is shown applied to a cable A having a terminal 5 such as the type described in applicant's French Pat. No. 1,589,129.
  • This cable is of the type having opposed polarities comprising a plurality of conductors l and 2 of respectively positive and negative polarity, in operation, the conductors of opposed polarities being separated by an insulating separating element 3 which axially extends in the cable, the threads of each conductor being themselves maintained by a permeable textile sheath or the like in the known manner.
  • Each group of conductors 1, 2 is connected to a terminal 5 in the manner described in said French patent application.
  • Each half 6 of the terminal has at its outer end a flat portion 8, in the known manner, adapted to be connected to the apparatus with which the cable is combined.
  • Longitudinal apertures 11 are also provided which open out on the inner end face of each terminal half 6, these longitudinal apertures being adapted to receive the ends of conductors l, 2.
  • each conductor 1, 2 is fitted in a plug 14 constituted by a copper sleeve and each plug 14 is then inserted in a longitudinal aperture 11 in which it is held by a press operation.
  • the sheath 17 has an inside diameter equal to the diameter of the terminal 5 and greater than the outside diameter of the conductors l, 2 surrounded by the tape 4 so as to leave a gap 19 between the sheath and the conductors (FIG. 1) all around the latter.
  • the cooling fluid which enters the terminal 5 by way of the apertures 10 flows along the axial passage 9 and thereafter flows axially in the center of the cable between the conductors l, 2 and by way of radial apertures 13, recesses 12' in the outer face of the terminal formed by the press operation for gripping the plugs 14, and in the gap 19 between the conductors and the outer sheath l7 and thus affords an extremely efficient cooling of all the conductors.
  • a spring or other flexible and permeable element affording axially a passage of minimum section for the cooling fluid.
  • spacer members 21, 22 adapted to withstand the force clamping together the two halves of the terminal and limit the pressure exerted on the portion 7 of the separating element 3 which affords the seal.
  • the thickness of these spacer members 21, 22 is a little less than that of the portion 7.
  • a plate 25 of Celoron having a generally rectangular shape and'including the necessary apertures l0, 15', 20' onto which is moulded a sealing element 26 of rubber which surrounds the aperture 10' by way of which the cooling fluid is supplied.
  • the elastically yieldable sealing element 7 is constituted by a rectangular-sectioned portion of the separating element 3, that is, it is in one piece with the latter.
  • This sealing element may of course be a separate member, as in the embodiment shown in FIG. 3, and connected to the phase-separating element 3 in any suitable manner, for example by an adhesive.
  • a terminal structure adapted to receive a multiconductor electric cable of the type comprising two groups of conductors of different polarities separated by an insulating separating element and disposed within a sealing sheath and cooled by a fluid circulating within the sheath, said terminal structure comprising two half-terminals each having a generally semicylindrical shape, an axial cooling fluid passage defined by said half-terminals, aligned radial cooling fluid inlet apertures in said half-terminals and communicating with said axial cooling fluid passage, and aligned radial second apertures in said half-terminals for means fixing the terminal structure to a terminal-receiving part, opposed inner plane faces on said two half-terminals, an elastically yieldable insulating and sealing said half-terminals for means fixing the terminal structure to a terminal-receiving part, opposed inner plane faces on said two half-terminals, an elastically yieldable insulating and sealing element for means fixing the terminal structure to a terminal-receiving part, opposed inner plane faces on said two

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  • Connector Housings Or Holding Contact Members (AREA)
  • Cable Accessories (AREA)
US854839A 1968-09-06 1969-09-03 Terminal structure for a multiconductor cable cooled by a circulating fluid Expired - Lifetime US3601520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR165294 1968-09-06

Publications (1)

Publication Number Publication Date
US3601520A true US3601520A (en) 1971-08-24

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ID=8654301

Family Applications (1)

Application Number Title Priority Date Filing Date
US854839A Expired - Lifetime US3601520A (en) 1968-09-06 1969-09-03 Terminal structure for a multiconductor cable cooled by a circulating fluid

Country Status (5)

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US (1) US3601520A (es)
DE (1) DE1944961A1 (es)
ES (1) ES175158Y (es)
FR (1) FR1589128A (es)
GB (1) GB1254034A (es)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764724A (en) * 1972-01-20 1973-10-09 Watteredge Uniflex Electric cable with controlled flexibility
US3801724A (en) * 1972-09-15 1974-04-02 D Goodman Safety-anchored multi-conductor water-cooled electric arc furnace cable
US4018976A (en) * 1976-04-15 1977-04-19 Grove Earl I Kickless resistance welding cable and method of making the same
US4487990A (en) * 1983-11-17 1984-12-11 Essex Group, Inc. Simplified water-cooled welding cable terminal
US5229543A (en) * 1991-10-28 1993-07-20 Electro-Max Mfg. Co. Fluid cooled power conductor and method of making the same
US5484960A (en) * 1994-02-24 1996-01-16 Watteredge-Uniflex Inc. Water cooled kickless cable and method
US5527994A (en) * 1994-05-31 1996-06-18 Kasper; James J. Water cooled kickless cable and method
US5780770A (en) * 1996-11-18 1998-07-14 Flex-Cable, Inc. Fluid cooled electrical conductor assembly
US6100467A (en) * 1998-02-19 2000-08-08 Flex-Cable, Inc. Water cooled kickless electrical cable
US20020148596A1 (en) * 2001-04-12 2002-10-17 Johannes Werninger Cooling device for an electronic component and cooling system with such cooling devices
US20100139896A1 (en) * 2009-11-11 2010-06-10 Remy Technologies, L.L.C. Liquid cooled stator terminal block for an electric machine
US20100193213A1 (en) * 2007-02-15 2010-08-05 Arndt Dung Assembly of the conduit of a water-cooled, high current cable including the compact cable head
US20110316373A1 (en) * 2009-11-06 2011-12-29 Yazaki Corporation Inverter terminal board installed in motor case
US20160270257A1 (en) * 2010-10-14 2016-09-15 Gregory Thomas Mark Actively cooled electrical connection
CN109789334A (zh) * 2016-10-20 2019-05-21 伊利亚·奥西波夫 电连接器
US20220219552A1 (en) * 2016-05-20 2022-07-14 Southwire Company, Llc Liquid Cooled Charging Cable System

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702311A (en) * 1949-07-01 1955-02-15 Mackworth G Rees Inc Terminal for cable having a plurality of alternate conductors
US3156760A (en) * 1963-06-11 1964-11-10 Gar Wood Ind Inc Welding cable with improved conductor orientation adjacent the terminals
US3363047A (en) * 1966-03-17 1968-01-09 Gar Wood Ind Inc Welding cable construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702311A (en) * 1949-07-01 1955-02-15 Mackworth G Rees Inc Terminal for cable having a plurality of alternate conductors
US3156760A (en) * 1963-06-11 1964-11-10 Gar Wood Ind Inc Welding cable with improved conductor orientation adjacent the terminals
US3363047A (en) * 1966-03-17 1968-01-09 Gar Wood Ind Inc Welding cable construction

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764724A (en) * 1972-01-20 1973-10-09 Watteredge Uniflex Electric cable with controlled flexibility
US3801724A (en) * 1972-09-15 1974-04-02 D Goodman Safety-anchored multi-conductor water-cooled electric arc furnace cable
US4018976A (en) * 1976-04-15 1977-04-19 Grove Earl I Kickless resistance welding cable and method of making the same
US4487990A (en) * 1983-11-17 1984-12-11 Essex Group, Inc. Simplified water-cooled welding cable terminal
US5229543A (en) * 1991-10-28 1993-07-20 Electro-Max Mfg. Co. Fluid cooled power conductor and method of making the same
US5484960A (en) * 1994-02-24 1996-01-16 Watteredge-Uniflex Inc. Water cooled kickless cable and method
US5581878A (en) * 1994-02-24 1996-12-10 Watteredge-Uniflex, Inc. Method of making water cooled kickless cable
US5527994A (en) * 1994-05-31 1996-06-18 Kasper; James J. Water cooled kickless cable and method
US5780770A (en) * 1996-11-18 1998-07-14 Flex-Cable, Inc. Fluid cooled electrical conductor assembly
US6100467A (en) * 1998-02-19 2000-08-08 Flex-Cable, Inc. Water cooled kickless electrical cable
US20020148596A1 (en) * 2001-04-12 2002-10-17 Johannes Werninger Cooling device for an electronic component and cooling system with such cooling devices
US6755240B2 (en) * 2001-04-12 2004-06-29 Abb Schweiz Ag Cooling device for an electronic component and cooling system with such cooling devices
US20100193213A1 (en) * 2007-02-15 2010-08-05 Arndt Dung Assembly of the conduit of a water-cooled, high current cable including the compact cable head
US7939753B2 (en) * 2007-02-15 2011-05-10 Arndt Dung Cable head for assembly in a conduit of a water-cooled, high current cable
US20110316373A1 (en) * 2009-11-06 2011-12-29 Yazaki Corporation Inverter terminal board installed in motor case
US9112397B2 (en) * 2009-11-06 2015-08-18 Yazaki Corporation Inverter terminal board installed in motor case
US20100139896A1 (en) * 2009-11-11 2010-06-10 Remy Technologies, L.L.C. Liquid cooled stator terminal block for an electric machine
US8362665B2 (en) * 2009-11-11 2013-01-29 Remy Technologies, L.L.C. Liquid cooled stator terminal block for an electric machine
US20160270257A1 (en) * 2010-10-14 2016-09-15 Gregory Thomas Mark Actively cooled electrical connection
US9761976B2 (en) * 2010-10-14 2017-09-12 Gregory thomas mark Actively cooled electrical connection
US20220219552A1 (en) * 2016-05-20 2022-07-14 Southwire Company, Llc Liquid Cooled Charging Cable System
US11760217B2 (en) * 2016-05-20 2023-09-19 Southwire Company, Llc Liquid cooled charging cable system
CN109789334A (zh) * 2016-10-20 2019-05-21 伊利亚·奥西波夫 电连接器

Also Published As

Publication number Publication date
GB1254034A (en) 1971-11-17
ES175158Y (es) 1973-04-01
DE1944961A1 (de) 1970-03-12
ES175158U (es) 1972-06-01
FR1589128A (es) 1970-03-23

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