US3008221A - Method of electrically connecting a wire to a conductive body - Google Patents

Method of electrically connecting a wire to a conductive body Download PDF

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Publication number
US3008221A
US3008221A US643909A US64390957A US3008221A US 3008221 A US3008221 A US 3008221A US 643909 A US643909 A US 643909A US 64390957 A US64390957 A US 64390957A US 3008221 A US3008221 A US 3008221A
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United States
Prior art keywords
wire
socket
electrically connecting
conducting
conductive body
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Expired - Lifetime
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US643909A
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Uebelmann Otto
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Individual
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/146—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the resistive element surrounding the terminal
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/16—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by bending
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49101—Applying terminal
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y10T29/49181—Assembling terminal to elongated conductor by deforming
    • Y10T29/49185—Assembling terminal to elongated conductor by deforming of terminal
    • Y10T29/49188—Assembling terminal to elongated conductor by deforming of terminal with penetrating portion
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body

Definitions

  • the instant invention relates generally to electrical conductingelements, and more particularly, to a method and means for securing electrical conducting wires to an electrical connecting element.
  • Connecting elements which are employed in the transmission of electrical energy must provide a relatively strong mechanical bond between the current conducting wires, and the connecting elements as well as a suitable electrically conducting junction.
  • the desired result may be achieved by pressing or soldering caps or collars on the ends of the connecting elements to fasten the conducting Wires thereto or by upsetting the current conducting wires within the cylindrical sockets formed in the ends of the conducting elements.
  • caps, and/ or collars necessitates a considerable consumption of material and presents interelement capacities to the arrangement which pose a rather serious problem when dealing with the transmission of high frequency electrical energy.
  • the present invention is directed principally to an upsetting process of connecting a current carrying wire and a connecting element wherein the free shank of the end of the current carrying wire is bent through substantially 180 and disposed within a socket formed in the connecting element and subsequent to the introduction therein is upset by means such as a punch to thereby achieve the desired junction.
  • FIGURE 1 is a fragmentary sectional view of a connector specifically illustrating the disposition of the current carrying wire in the socket of the connector,
  • FIGURE 2 is a view similar to the view of FIGURE 2 showing the current carrying wire after it has been pressed into place, and
  • FIGURE 3 is a fragmentary sectional view of an alternate form of the invention.
  • Patented Nov. 14, 1961 I ride polyvinyl carbazole, polyamide polyethylene or rubber hydrochloride.
  • the ceramic body 1 has bosses 3 formed integral therewith to effectively protect the Aceramic resistant body 1 is provided with elonthe elements are exposed to a great deal of moisture and other adverse conditions may make it highly desirable to envelope the elements with appropriate protective coverings. It has proved advantageous in certain applications to provide a plurality of thin protective layers of different properties thereby forming in effect a laminated coating of protective material rather than a single outer layer.
  • the coating may be comprised of a thermoplastic or a hardening synthetic resin in addi* tion to the lustrous carbon material.
  • the outer protectivelayer may be satisfactorily formed of material having substantial re sistance to' puncture, such as for example polyvinyl chlo-
  • the elongate socket 4 formed in the ends of the body 1 is adapted to receive the current conducting wires 5 as illustrated in the drawing.
  • the sockets 4 are generally of a size suflicient to receive the conducting wire 5 when the terminal portions thereof have been bent upon itself to conform to the shape of a U. With the U-shaped arrangement of the wires 5, a good mechanical and electrical connection may be readily achieved in accordance with the teachings of the instant invention by tamping, forcing, or upsetting the free terminal end of the wires 5 after disposition within their respective sockets 4.
  • FIGURE 3 The alternate form of the invention shown in FIGURE 3 comprises a ceramic body 11 having a socket 12 at one end, the sides of the socket having a series of grooves 13. Disposed within the socket is the end portion of the current carrying wire 14, the L-shaped end 15 being upset to fill the cavity similar to that shown in FIG- URE 2.
  • a protective coating 17 of lacquer and upon the coating 17 is a shrunk-on layer 18 of great resistance to puncture.
  • Layer 18 may be of polyvinyl chloride, a polyvinyl carbazole, a polyamide, polyethylene or a rubber hydrochloride.
  • the hardening cement, solder, or the like indicated at 16 completely fills all the hollow spaces or voids in the elongate socket 12 in order to further increase the mechanical and electrical bond between the connecting element and the current carrying wire.

Description

Nov. 14, 1961 I UEBELMANN 3,003,221
METHOD OF CTRICALLY CONNECTING A WIRE TO A CONDUCTIVE BODY Filed Feb. 20, 1957 METHOD OF ELECTRICALLY CONNECTING A The instant invention relates generally to electrical conductingelements, and more particularly, to a method and means for securing electrical conducting wires to an electrical connecting element.
Connecting elements which are employed in the transmission of electrical energy must provide a relatively strong mechanical bond between the current conducting wires, and the connecting elements as well as a suitable electrically conducting junction. The desired result may be achieved by pressing or soldering caps or collars on the ends of the connecting elements to fasten the conducting Wires thereto or by upsetting the current conducting wires within the cylindrical sockets formed in the ends of the conducting elements.
It may be readily apparent that the use of caps, and/ or collars necessitates a considerable consumption of material and presents interelement capacities to the arrangement which pose a rather serious problem when dealing with the transmission of high frequency electrical energy.
The present invention is directed principally to an upsetting process of connecting a current carrying wire and a connecting element wherein the free shank of the end of the current carrying wire is bent through substantially 180 and disposed within a socket formed in the connecting element and subsequent to the introduction therein is upset by means such as a punch to thereby achieve the desired junction. I
The invention will be clearly understood by reading the following detailed description in conjunction with the drawings, in which:
FIGURE 1 is a fragmentary sectional view of a connector specifically illustrating the disposition of the current carrying wire in the socket of the connector,
FIGURE 2 is a view similar to the view of FIGURE 2 showing the current carrying wire after it has been pressed into place, and
FIGURE 3 is a fragmentary sectional view of an alternate form of the invention.
Patented Nov. 14, 1961 I ride, polyvinyl carbazole, polyamide polyethylene or rubber hydrochloride.
It will be noted that the ceramic body 1 has bosses 3 formed integral therewith to effectively protect the Aceramic resistant body 1 is provided with elonthe elements are exposed to a great deal of moisture and other adverse conditions may make it highly desirable to envelope the elements with appropriate protective coverings. It has proved advantageous in certain applications to provide a plurality of thin protective layers of different properties thereby forming in effect a laminated coating of protective material rather than a single outer layer. In such instances, the coating may be comprised of a thermoplastic or a hardening synthetic resin in addi* tion to the lustrous carbon material. It has been found that in applications wherein the elements are to be exposed to severe use, the outer protectivelayer may be satisfactorily formed of material having substantial re sistance to' puncture, such as for example polyvinyl chlo- The elongate socket 4 formed in the ends of the body 1 is adapted to receive the current conducting wires 5 as illustrated in the drawing. The sockets 4 are generally of a size suflicient to receive the conducting wire 5 when the terminal portions thereof have been bent upon itself to conform to the shape of a U. With the U-shaped arrangement of the wires 5, a good mechanical and electrical connection may be readily achieved in accordance with the teachings of the instant invention by tamping, forcing, or upsetting the free terminal end of the wires 5 after disposition within their respective sockets 4. The tamping operation necessarily deforms the metal of the wires 5 and causes it to flow against the exposed faces -of the sockets 4. By reason of the friction thus produced between the wires 5 and the body 1 of the connecting element, retraction of the wires is nearly impossible yvithout fracturing the wire or breaking the ceramic body 1. With the U-shaped configuration of the conducting wire, any attempt to separate the wire from the ceramic body 1 will necessitate the unrolling of the wire in the socket 4 due to the fact the terminal portion of the wire has been spread out causing its free end to be in intimate contact with the surface of the interior of the sockets 4.
It will be readily apparent that good electrical contact is maintained between the conducting wire 5 and the conducting layer 2 which has been formed on the interior surface of the sockets 4 of the body 1. In certain applications, improved electrical contact may be achieved, if desired, by filling any hollow spaces within the sockets 4 by a substance such as a graphite solution or a conducting cement. The alternate form of the invention shown in FIGURE 3 comprises a ceramic body 11 having a socket 12 at one end, the sides of the socket having a series of grooves 13. Disposed within the socket is the end portion of the current carrying wire 14, the L-shaped end 15 being upset to fill the cavity similar to that shown in FIG- URE 2. A hardening cement, solder, or the like indicated at 16, affords additional securing means for retaining the wire in the body. Covering the body 11 is a protective coating 17 of lacquer and upon the coating 17 is a shrunk-on layer 18 of great resistance to puncture. Layer 18 may be of polyvinyl chloride, a polyvinyl carbazole, a polyamide, polyethylene or a rubber hydrochloride. The hardening cement, solder, or the like indicated at 16 completely fills all the hollow spaces or voids in the elongate socket 12 in order to further increase the mechanical and electrical bond between the connecting element and the current carrying wire.
This application is a continuation in part application of an earlier filed copending application Serial Number 326,444, filed December 17, 1952, now abandoned.
Having fully explained the invention in accordance with the patent statutes by means of some embodiments it is clear that the invention is not to be restricted to these embodiments and it is desired to include within the invention all embodiments falling within the scope of the bend including a free shank extending substantially parallel and contiguous to the unben't portion of the wire,
3 inserting said closed bend into a socket in the bod slightly larger in cross section than said closed bend and shaped to accept said bend, and thereafter applying a sufficient degree of force axially against the end of said I free shank to upset said shank into tight engagement with 5 the interior surface of said socket.
References Cited in the file of this patent UNITED STATES PATENTS 1,835,602 Ker :he1'etal. Dec. 8, 1951 Holtzapple Aug. 13, 1957
US643909A 1957-02-20 1957-02-20 Method of electrically connecting a wire to a conductive body Expired - Lifetime US3008221A (en)

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US643909A US3008221A (en) 1957-02-20 1957-02-20 Method of electrically connecting a wire to a conductive body

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US643909A US3008221A (en) 1957-02-20 1957-02-20 Method of electrically connecting a wire to a conductive body

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239895A (en) * 1962-01-25 1966-03-15 Ibm Apparatus for molding electrical connections
US3327284A (en) * 1964-10-05 1967-06-20 Thomas & Betts Company Inc Terminalless connections for wire leads
US3458780A (en) * 1967-09-27 1969-07-29 Westinghouse Electric Corp Wedge bonded leads for semiconductor devices
US3474531A (en) * 1964-11-17 1969-10-28 Piconics Inc Encapsulated electrical component and method for making the same
EP2006963A1 (en) * 2007-05-16 2008-12-24 Delphi Technologies, Inc. Attachment method for a cable lug and cable bending device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1835602A (en) * 1926-09-20 1931-12-08 Wesix Nat Company Electrical heating device
US1920791A (en) * 1931-05-13 1933-08-01 Hogan Philip Method of soldering together cylindrical surfaces
US2135888A (en) * 1933-12-08 1938-11-08 American Steel & Wire Co Installation of rail bonds
US2247041A (en) * 1940-02-09 1941-06-24 Thomas & Betts Corp Wire connector
US2305977A (en) * 1937-07-15 1942-12-22 Allen Bradley Co Electrical resistor
US2557571A (en) * 1946-03-22 1951-06-19 David T Siegel Resistor structure and method of manufacture
US2622903A (en) * 1949-09-09 1952-12-23 Railroad Accessories Corp Head-of-rail bond
US2658980A (en) * 1950-03-16 1953-11-10 Weides Erich Electric resistance
US2721314A (en) * 1950-10-21 1955-10-18 Hartford Nat Bank & Trust Co Electrical connection
US2776467A (en) * 1951-11-27 1957-01-08 Joseph B Brennan Method of making a closure and terminal construction for electrolytic devices
US2802257A (en) * 1949-02-01 1957-08-13 Amp Inc Method of forming an electrical connection

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1835602A (en) * 1926-09-20 1931-12-08 Wesix Nat Company Electrical heating device
US1920791A (en) * 1931-05-13 1933-08-01 Hogan Philip Method of soldering together cylindrical surfaces
US2135888A (en) * 1933-12-08 1938-11-08 American Steel & Wire Co Installation of rail bonds
US2305977A (en) * 1937-07-15 1942-12-22 Allen Bradley Co Electrical resistor
US2247041A (en) * 1940-02-09 1941-06-24 Thomas & Betts Corp Wire connector
US2557571A (en) * 1946-03-22 1951-06-19 David T Siegel Resistor structure and method of manufacture
US2802257A (en) * 1949-02-01 1957-08-13 Amp Inc Method of forming an electrical connection
US2622903A (en) * 1949-09-09 1952-12-23 Railroad Accessories Corp Head-of-rail bond
US2658980A (en) * 1950-03-16 1953-11-10 Weides Erich Electric resistance
US2721314A (en) * 1950-10-21 1955-10-18 Hartford Nat Bank & Trust Co Electrical connection
US2776467A (en) * 1951-11-27 1957-01-08 Joseph B Brennan Method of making a closure and terminal construction for electrolytic devices

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239895A (en) * 1962-01-25 1966-03-15 Ibm Apparatus for molding electrical connections
US3327284A (en) * 1964-10-05 1967-06-20 Thomas & Betts Company Inc Terminalless connections for wire leads
US3474531A (en) * 1964-11-17 1969-10-28 Piconics Inc Encapsulated electrical component and method for making the same
US3458780A (en) * 1967-09-27 1969-07-29 Westinghouse Electric Corp Wedge bonded leads for semiconductor devices
EP2006963A1 (en) * 2007-05-16 2008-12-24 Delphi Technologies, Inc. Attachment method for a cable lug and cable bending device

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