US3546660A - Electrical connector with insulation piercing means - Google Patents

Electrical connector with insulation piercing means Download PDF

Info

Publication number
US3546660A
US3546660A US798075A US3546660DA US3546660A US 3546660 A US3546660 A US 3546660A US 798075 A US798075 A US 798075A US 3546660D A US3546660D A US 3546660DA US 3546660 A US3546660 A US 3546660A
Authority
US
United States
Prior art keywords
shells
cable
cap screws
insulation
connector
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
US798075A
Other languages
English (en)
Inventor
Klaus Wilhelm
Bodo Bottcher
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.)
Vereinigte Draht und Kabelwerke AG
Original Assignee
Vereinigte Draht und Kabelwerke 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
Application filed by Vereinigte Draht und Kabelwerke AG filed Critical Vereinigte Draht und Kabelwerke AG
Application granted granted Critical
Publication of US3546660A publication Critical patent/US3546660A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/07—Sodium conductors, connectors

Definitions

  • a connector arrangement for cables having an electrical conductor and insulation surrounding the conductor the connector arrangement incorporating two half-shells each having an inner surface which engages the insulation of a cable between the half-shells.
  • the half-shells have inwardly extending, pointed prongs which, during placement of the half-shells on the cable, penetrate the insulation and pierce into the electrical conductor.
  • the half-shells have external threads at their ends, so that, when the two half-shells are in place, they together form a composite tubular body which is externally threaded at each end.
  • Two cap screws are provided, each having an internally threaded tubular portion, these cap screws being threaded onto opposite ends, respectively, of the composite tubular body constituted by the half-shells. Sealing means are provided between the cap screws and the composite tubular body constituted by the half-shells.
  • the present invention relates to cable connectors for use with cables of the type having an insulated electrical conductor, made, for example, of an alkali metal such as sodium.
  • the connectors themselves are made, at least in part, of elements which themselves are made of a material which is a good conductor of electricity and which are indirect contact with the electrical conductors.
  • Yet another drawback of the described arrangement is that, while it is suitable for being connected to one cable end, it can not be converted for use as a connector to join two cable ends to each other, nor can it be converted for use as a connector to tap a branch 01f the cable; instead, if two cable ends are to be joined to each other, two connectors are required, and if a branchtype connection is to be made, three connectors are. required.
  • This means not only that a relatively large number of connector elements have to be used, but also, that special care must be taken to make certain that the connectors are themselves in proper electrical contact with each other.
  • the primary object of the present invention to provide a connector arrangement which overcomes the abovedescribed drawbacks.
  • the present invention resides, basically, in a connector arrangement for cables having an electrical conductor and insulation surround- Patented Dec. 8, 1970 ing the conductor, the connector arrangement incorporating two half-shells each having an inner surface which engages the insulation of a cable between the half-shells.
  • the connector arrangement incorporating two half-shells each having an inner surface which engages the insulation of a cable between the half-shells.
  • 'Ihe half-shells have inwardly extending, pointed prongs which, during placement of the half-shells on the cable, penetrate the insulation and pierce into the electrical conductor.
  • the half-shells have external threads at their ends, so that, when the two half-shells are in place, they together form a composite tubular body which is externally threaded at each end.
  • Two cap screws are provided, each having an internally threaded tubular portion, these cap screws being threaded onto opposite ends, respectively, of the composite tubular body constituted by the half-shells. Sealing means are provided between the cap screws and the composite tubular body constituted by the half-shells.
  • the cap screws may be made of insulating or non-insulating material; if they are made of plastic, the sealing means may be integral with the screw caps.
  • the ends of the composite tubular body may be cylindrical or they may be conical.
  • one of the cap screws may extend as far as the other cap screw, and surround and be in threaded engagement with this other cap screw.
  • FIG. 1 shows the end 1 and 2 of two cables which are to be connected to each other.
  • the cables themselves are made, for example, of a metallic conductor such as sodium, surrounded by insulation such as a polyolefin.
  • the connector arrangement comprises two cap screws 3 and 4 and associated sealing rings 5 and 6 which are slipped over the respective cable ends. The latter are then brought into alignment with each other and moved into a position where they almost touch each other, there being suitable sealing means between the cable ends, such as a sealing ring 12 which is placed between the end surfaces of the cable ends, or a foil (not shown) which is wound about the two cable ends.
  • Two half-shells 7 and 8, each made of metal or other material that is a good conductor of electricity and provided with internally extending, conical prongs 9, are then pressed, from the side, against and into the cable ends, such that the points of the prongs 9 penetrate through the insulation 10 and pierce into the conductor 11. Thanks to the conical configuration of the prongs '9, there is established both excellent electrical contact with the conductors 10 as well as an excellent seal with respect to the outside.
  • the half-shells 7, 8 are provided, at their respective outer ends, with threads which mate with internal threads with which the tubular portions of the respective cap screws 3, 4 are provided.
  • the ends of the shells, and the associated threading may be cylindrical, as shown in FIG. 1, or conical, with the threading tapering toward the tips, as shown in FIG. 2 where one of the two cap screws is indicated at 103 and the half-shells at 107 and 108.
  • the two half-shells 7, 8 When the two half-shells 7, 8 are pressed into the cable ends until their inner surfaces almost engage the outer surfaces of the insulation 10, they form a composite tubular body which is externally threaded at each end.
  • the two cap screws 3 and 4, together with their sealing rings 5 and 6, are threaded onto the composite tubular body constituted by the half-shells, thus pressing the prongs 9 into the conductor 11. If the half-shells are conical as shown in FIG. 2, they will be pressed even more tightly against the insulation 10.
  • the longitudinal gap at between the half-shells will then be closed, i.e., the half-shells will be pressed until their longitudinal edges engage each other, or if there is still a space between the half-shells, the same will be filled by the material of the insulation 10, or the foil which is wound about the cable may be pressed into the gap.
  • the connection as a whole is provided with a seal in addition to that afforded by the rings 5, 6.
  • the cap screws 3, 4 may themselves be made of metal or other material which is a good conductor of electricity.
  • the cap screws may be made of plastic, as shown in FIG. 2, in which case the sealing means 105 may be integral with the cap screw 103.
  • One significant and practical advantage of making the cap Screws of plastic is that the same may initially be made without any hole in the bottom, since it is very simple to provide an otherwise finished cap screw with whatever diameter hole is needed to accommodate the particular cable with which the cap screw is used, and this, in turn, reduces the necessity of maintaining an extensive inventory consisting of prepunched cap screws having holes of various diameters.
  • cap screws having no hole in their bottom will serve to close oif a cable end completely and can thus be used as a terminal cap.
  • Terminal caps made of metal have the advantage that they can easily be provided with a connecting stud prior to being assembled in the connector arrangement.
  • FIG. 3 shows a modified embodiment of the present invention in which the cap screw 204 is provided with a tubular extension 204a, the latter being internally threaded at least in the region of its free end, this thread mating with an additional external thread on the tubular portion of the cap screw 203, so that the cap screw 204 canactually be threaded onto the cap screw 203. In this way, a still greater axial pressure can be exerted, thereby producing a still better seal between the parts being connected.
  • a connector arrangement which is composed of individually uncomplicated parts.
  • the half-shells may be readily configured so as to be suitable for use as a means for joining two cable ends to each other, or as a terminal connector, or
  • FIG. 3 may incorporate any of the structural features shown in and described in connection with either or both of FIGS. 1 and 2, e.g., the arrangement shown in FIG. 3 may be used in conjunction with half-shells having cylindrical or conical ends, or the cap screws themselves may be made of plastic and have the sealing means integral therewith, or the cap screws may be made of metal with separate sealing rings being provided.
  • sealing means comprise sealing rings each interposed between the inner bottom surface of a respective cap screw and the corresponding ends of said halfshells.
  • tubular portion of one of said cap screws is externally threaded and the tubular portion of the other of said cap screws extends axially to surround the tubular portion of said first cap screw and. is in threaded engagement with the external thread of said first cap screw.

Landscapes

  • Cable Accessories (AREA)
US798075A 1968-02-10 1969-02-10 Electrical connector with insulation piercing means Expired - Lifetime US3546660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681690464 DE1690464B1 (de) 1968-02-10 1968-02-10 Verbindungselement fuer kabel mit leitern aus alkalimetall insbesondere aus natrium

Publications (1)

Publication Number Publication Date
US3546660A true US3546660A (en) 1970-12-08

Family

ID=5687574

Family Applications (1)

Application Number Title Priority Date Filing Date
US798075A Expired - Lifetime US3546660A (en) 1968-02-10 1969-02-10 Electrical connector with insulation piercing means

Country Status (8)

Country Link
US (1) US3546660A (pl)
BE (1) BE728018A (pl)
CH (1) CH495638A (pl)
DE (1) DE1690464B1 (pl)
FR (1) FR2001692A1 (pl)
GB (1) GB1238007A (pl)
NL (1) NL6901873A (pl)
SE (1) SE343435B (pl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167526A (en) * 1989-09-21 1992-12-01 Raychem Corporation Electrical connection device and telecommunications terminal block method of manufacturing the device and block
US20060199422A1 (en) * 2005-03-04 2006-09-07 Hoisington Mark A Intermeshing insulation-piercing elements for an insulation-piercing connector

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1488636A (en) * 1920-05-24 1924-04-01 Geiser John Albert Wire connecter
US1980893A (en) * 1932-05-11 1934-11-13 Frank T Ray Cable connecter for storage batteries
US2725545A (en) * 1953-12-28 1955-11-29 Gordon Harry Electrical connector having insulation penetrating means contactiong the conductors
US3041575A (en) * 1960-08-31 1962-06-26 Wilhelm A Schneider Connecting means
FR1495934A (fr) * 1966-10-05 1967-09-22 Raccord de câbles électriques
US3417195A (en) * 1968-03-06 1968-12-17 Amp Inc Strip and nonstrip electrical connection

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345453A (en) * 1966-02-18 1967-10-03 Simplex Wire & Cable Co Alkali metal conductor terminal
US3368183A (en) * 1966-06-29 1968-02-06 Amp Inc Connector means and methods for relatively soft conductors

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1488636A (en) * 1920-05-24 1924-04-01 Geiser John Albert Wire connecter
US1980893A (en) * 1932-05-11 1934-11-13 Frank T Ray Cable connecter for storage batteries
US2725545A (en) * 1953-12-28 1955-11-29 Gordon Harry Electrical connector having insulation penetrating means contactiong the conductors
US3041575A (en) * 1960-08-31 1962-06-26 Wilhelm A Schneider Connecting means
FR1495934A (fr) * 1966-10-05 1967-09-22 Raccord de câbles électriques
US3417195A (en) * 1968-03-06 1968-12-17 Amp Inc Strip and nonstrip electrical connection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167526A (en) * 1989-09-21 1992-12-01 Raychem Corporation Electrical connection device and telecommunications terminal block method of manufacturing the device and block
US20060199422A1 (en) * 2005-03-04 2006-09-07 Hoisington Mark A Intermeshing insulation-piercing elements for an insulation-piercing connector
US7131856B2 (en) * 2005-03-04 2006-11-07 3M Innovative Properties Company Intermeshing insulation-piercing elements for an insulation-piercing connector

Also Published As

Publication number Publication date
GB1238007A (pl) 1971-07-07
DE1690464B1 (de) 1971-11-11
NL6901873A (pl) 1969-08-12
BE728018A (pl) 1969-07-16
FR2001692A1 (pl) 1969-09-26
SE343435B (pl) 1972-03-06
CH495638A (de) 1970-08-31

Similar Documents

Publication Publication Date Title
US3854789A (en) Connector for coaxial cable
US3336563A (en) Coaxial connectors
US3798586A (en) Union for connecting electrical conductors
US3701086A (en) Coaxial connector
US4921449A (en) Shield connections for electrical cable connector
US3480722A (en) Coaxial cable connector
GB1109260A (en) Electrical connectors
US3598895A (en) Connector for double-shielded cable
KR890004248Y1 (ko) 동축 케이블용 접속 플러그
US2294738A (en) Coupling means for cables
US3344227A (en) Connector with one-piece gasket and boot
US3104145A (en) Coaxial connectors
US3474391A (en) Coaxial connector
US3546660A (en) Electrical connector with insulation piercing means
US3397379A (en) Lamp socket with insulation piercing contacts
US3343122A (en) Junction device for electric cable of the coaxial type, more particularly for high-tension coaxial cable
US3869155A (en) Cable glands
US3077513A (en) Coaxial cable connector
US3192308A (en) Electrical connector for braided coaxial cable
GB1372519A (en) Termination appliance for a cable or the like
US2755451A (en) Connector for electric cables
US1981753A (en) Electric connecter
GB920725A (en) Improvements in or relating to connectors for coaxial cables
US3579173A (en) Underground cable tap connector
US2576527A (en) Angularly adjustable wire to bar connector