US3842497A - Electrical contact and conductor, and method of making - Google Patents

Electrical contact and conductor, and method of making Download PDF

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Publication number
US3842497A
US3842497A US00292044A US29204472A US3842497A US 3842497 A US3842497 A US 3842497A US 00292044 A US00292044 A US 00292044A US 29204472 A US29204472 A US 29204472A US 3842497 A US3842497 A US 3842497A
Authority
US
United States
Prior art keywords
connector member
socket
tines
wire
conductor wire
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
US00292044A
Other languages
English (en)
Inventor
L Kehl
R Janis
T Spaulding
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.)
Amphenol Corp
Bunker Ramo Corp
Original Assignee
Bunker Ramo Corp
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 to CA119,257A priority Critical patent/CA965169A/en
Priority to AU31783/71A priority patent/AU466733B2/en
Priority to NL7110726A priority patent/NL7110726A/xx
Priority to BE771229A priority patent/BE771229A/fr
Priority to DE19712140745 priority patent/DE2140745A1/de
Priority to AT715271A priority patent/AT318044B/de
Priority to FR7129877A priority patent/FR2112920A5/fr
Priority to GB3858371A priority patent/GB1358096A/en
Priority to CH1203471A priority patent/CH539957A/de
Priority to US00292044A priority patent/US3842497A/en
Application filed by Bunker Ramo Corp filed Critical Bunker Ramo Corp
Publication of US3842497A publication Critical patent/US3842497A/en
Application granted granted Critical
Assigned to ALLIED CORPORATION A CORP. OF NY reassignment ALLIED CORPORATION A CORP. OF NY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BUNKER RAMO CORPORATION A CORP. OF DE
Assigned to CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK AGENCY, AS AGENT reassignment CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK AGENCY, AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AMPHENOL CORPORATION
Assigned to AMPHENOL CORPORATION, A CORP. OF DE reassignment AMPHENOL CORPORATION, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALLIED CORPORATION, A CORP. OF NY
Anticipated expiration legal-status Critical
Assigned to AMPHENOL CORPORATION A CORP. OF DELAWARE reassignment AMPHENOL CORPORATION A CORP. OF DELAWARE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CANADIAN IMPERIAL BANK OF COMMERCE
Expired - Lifetime 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • 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
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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
    • H01R4/18—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 crimping
    • H01R4/20—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 crimping using a crimping sleeve
    • 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
    • Y10T29/49183—Assembling terminal to elongated conductor by deforming of ferrule about conductor and terminal

Definitions

  • the invention resides in the general field of connectors wherein the connector parts are connected and disconnected many times, and thereby subject to great deterioration.
  • the invention applies to both socket contacts and pin contacts in so far as the securement of the connector member is secured to the conductor wire, but it also applies particularly to socket contacts in so far as deterioration from wear is concerned.
  • a broad object of this invention is to provide a connector member and conductor wire to which it is secured, capable of over-coming the objections to devices of the general character set out above.
  • a more specific'object is to provide a connector member and conductor wire component in which unusually great electrical contact is established between the connector member and the conductor wire.
  • Another and more specific object is to provide in a connector member of the foregoing character, a socket contact of unusual great tensile strength, whereby to provide greater resistance to fatigue, and to maintain greater pressure on a pin inserted into thesocket, with corresponding greater conduction relationship between the pin and socket element.
  • Anadditional object is to provide an electrical connector member of the foregoing character in which the socket contact is provided with increased hardness and is thus correspondingly capable of withstanding wear.
  • Still another object is to provide a connector member including a socket contact having greatly increased conductivity.
  • a further object is to provide a method of forming a connector member of the foregoing general character, which includes applying a connector member to a conductor wire, and heat treating it for providing the advantages referred to hereinabove.
  • FIG. 1 is a perspective, exploded view of a device incorporating a connector embodying the features of the present invention
  • FIG. 2 is a large scale, side elevational, view of a socket contact and connected conductor, included in the left hand portion of FIG. 1;
  • FIG. 3 is an end view taken from the right of FIG. 2;
  • FIG. 4 is an axial sectional view taken at line 44 of FIG. 2, and including the pin of a pin contact inserted in the socket of the socket contact;
  • FIG. 5 is a large scale sectional view taken at line 5-5 of FIG. 4.
  • FIG. 1 shows one of a wide variety of instrumentalities in which the connector member of the present invention can be incorporated.
  • an instrumentality is indicated generally at which includes two main components 12 and 14 adapted for connection together, both mechanically and electrically.
  • the component 12 includes a mounting element 16 having a socket element 18 which includes a plurality of socket contacts 20 of the kind embodying the features of the invention and described in detail hereinbelow.
  • the component 14 includes a mounting member or component 22 that can be telescoped over the element 16 for mechanically mounting the component 14 on the component 12.
  • the component 14 includes a plug element 24 including pin contacts having pins 26 insertable into the sockets 20 when the components 12 and 14 are fitted together, for establishing electrical contact engagement between the electrical elements of the two components.
  • a plug element 24 including pin contacts having pins 26 insertable into the sockets 20 when the components 12 and 14 are fitted together, for establishing electrical contact engagement between the electrical elements of the two components.
  • a typical construction in which the invention can be incorporated is a pancake making machine as disclosed in the co-pending application of two of the present inventors, namely, Lawrence J. Kehl and Robert G. Janis, and another inventor, Irvin R. Triner, and assigned to the assignee of the present invention Ser. No. 79,409, filed Oct. 9, 1970, now US. Pat. No. 3,683,150.
  • Irvin R. Triner and assigned to the assignee of the present invention Ser. No. 79,409, filed Oct. 9, 1970, now US. Pat. No. 3,683,150.
  • the description hereinafter relates particularly to a socket contact, because of both the matter of its connection to the conductor wire and the strength of the contact itself, although it applies to a pin contact as well in relation to its securement to a conductor wire.
  • the socket contact 20 is an integral piece, of beryllium copper and which may be formed in-any suitable manner, such for example as by being machined.
  • the contact socket as disclosed herein includes a crimp pocket or barrel 28 and a tined area 30, both tubular, the latter being slotted at 32 to form a plurality of (preferably four) tines or brushes 34, which are bent or formed inwardly at the open end 36 of the socket 31.
  • the crimp pocket 28 is adapted for receiving a conductor ,wire 38 which preferably in installations in which the present device is to be used is of pure, or nearly pure, copper.
  • the conductor wire 38 is a standard item and has a diameter within a standard range of variation, and the crimp pocket is dimensioned for slidably receiving the wire for ease in assembling the elements.
  • the crimped pocket is crimped, preferably at four places forming indents 40 spaced circumferentially therearound.
  • the crimping operation produces projections or pimples 42 on the inner surface of the crimp pocket or barrel which penetrate into the body of the conductor wire.
  • This crimping operation displaces the material of the crimp pocket or barrel and causes a deformation or displacement of the material of the wire 38 to such an extent that any space that may have existed between the wire and the surfaces of the crimp pocket is obviated. This may be the result of deformation of the crimp pocket itself, or of the wire, or both.
  • the projections or pimples 42 occupy a portion of the original circumferential extent of the surface of the wire, and the portions of the wire between the pimples are necessarily correspondingly displaced outwardly, filling the space that may have otherwise existed between the wire and the crimp pocket, but also, the defomiation of the crimp pocket itself tends to additionally negate any space that would previously have existed between the wire and the pocket.
  • the item thus formed including the socket contact and as much of the wire as may be handled practically, are placed in an oven and heat treated at about 600F for about 2 hours, this temperature and this time period being of course considered optimum, but of course considerable variation in both the temperature and the time period are permissible.
  • This heat treatment sets the socket contact so as to increase its hardness and tensile strength and thereby increase the springiness of the tines or brushes 34.
  • the heat treating operation also increases the hardness of the socket contact and serves to improve the electrical conductivity thereof.
  • the beryllium copper of the socket contact before the heat treating is relatively soft and lends itself readily to forming operations, such as crimping on the conductor wire 38 and working the tines 34, as forming them in.
  • metal when soft does not have good tensile strength, nor does it have good wearing resistance. But its softness renders itself to effective crimping on the conductor wire.
  • the heat treating operation hardens the socket contact so that the crimping formations on the conductor wire take a more set condition, being hardened, and thereby resist, and actually prevent, removal of the socket contact from the wire.
  • the tined area 30, including the tines 34 is hardened and because of its increased tensile strength, the tines assume a springiness that is much greater than that that existed before the heat treating. For example, tests have been made in which the contact pins 28 have been inserted into and removed from the sockets 1,000,000 times without any sign of appreciable wear or fatigue on the tines.
  • the heat treatment does not affect the conductor wire 38, since it is of high-pure copper.
  • the copper wire which is in its highest purity from a commercial standpoint, remains highly conductive, and since it is relatively soft, at least from the standpoint of the crimping operation, it enables the crimping step to take full effect.
  • the tines are formed in, as represented in FIGS. 2 and 4, before the heat treating operation, but this condition as will be appreciated, is exaggerated in those figures.
  • the actual difference in diameter between the contact pins 28 and the internal diameter of the socket 31 may be very small, and the flexing of the tines much less than that indicated in FIG. 4.
  • a method of making an electrically conductive component including the steps providing a conductor wire,
  • a one-piece connector member of soft deformable material capable of being hardened by heat treating and having a crimp pocket end for receiving the conductor wire, and a socket end for receiving a mating contact, crimping the soft pocket end of the connector member on the conductor wire to deform the pocket end on the wire to form a unitary and effectively integral member, and heat treating the connector member under conditions for hardening the material of the connector to increase the hardness of the crimped pocket end and the socket end.
  • said socket end has longitudinally extending and circumferentially spaced tines, and whereby the hardness is imparted also to the tines, and increased tensile strength is imparted to the tines.
  • a method according to claim 2 which includes the step of providing a connector member of beryllium copper.
  • a method according to claim 3 wherein the heat treatment includes heating the connector member at in the neighborhood of 600F. for in the neighborhood of 2 hours.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US00292044A 1970-11-09 1972-09-25 Electrical contact and conductor, and method of making Expired - Lifetime US3842497A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CA119,257A CA965169A (en) 1970-11-09 1971-07-27 Electrical contact and conductor, and method of making
AU31783/71A AU466733B2 (en) 1970-11-09 1971-07-29 Electrical connector and method of making it
NL7110726A NL7110726A (fr) 1970-11-09 1971-08-04
BE771229A BE771229A (fr) 1970-11-09 1971-08-12 Contact et conducteur electriques et procede pour leur fabrication
DE19712140745 DE2140745A1 (de) 1970-11-09 1971-08-13 Elektrische Verbindung und Verfahren zu ihrer Behandlung
FR7129877A FR2112920A5 (fr) 1970-11-09 1971-08-16
AT715271A AT318044B (de) 1970-11-09 1971-08-16 Verfahren zur Herstellung einer elektrischen Verbindung
GB3858371A GB1358096A (en) 1970-11-09 1971-08-17 Electrical component and method of making it
CH1203471A CH539957A (de) 1970-11-09 1971-08-17 Elektrische Verbindungsvorrichtung und Verfahren zu ihrer Herstellung
US00292044A US3842497A (en) 1970-11-09 1972-09-25 Electrical contact and conductor, and method of making

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8780570A 1970-11-09 1970-11-09
US00292044A US3842497A (en) 1970-11-09 1972-09-25 Electrical contact and conductor, and method of making

Publications (1)

Publication Number Publication Date
US3842497A true US3842497A (en) 1974-10-22

Family

ID=26777417

Family Applications (1)

Application Number Title Priority Date Filing Date
US00292044A Expired - Lifetime US3842497A (en) 1970-11-09 1972-09-25 Electrical contact and conductor, and method of making

Country Status (10)

Country Link
US (1) US3842497A (fr)
AT (1) AT318044B (fr)
AU (1) AU466733B2 (fr)
BE (1) BE771229A (fr)
CA (1) CA965169A (fr)
CH (1) CH539957A (fr)
DE (1) DE2140745A1 (fr)
FR (1) FR2112920A5 (fr)
GB (1) GB1358096A (fr)
NL (1) NL7110726A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002083A1 (fr) * 1977-11-11 1979-05-30 Itt Industries, Inc. Méthode pour la fabrication des douilles pour connecteurs électriques
US4195272A (en) * 1978-02-06 1980-03-25 Bunker Ramo Corporation Filter connector having contact strain relief means and an improved ground plate structure and method of fabricating same
US4275375A (en) * 1979-01-26 1981-06-23 Leco Corporation Heating element connector and method
DE3142286A1 (de) * 1981-10-24 1983-05-11 Feinmetall Gmbh, 7033 Herrenberg Verfahren zum herstellen einer steckbuchse einer elektrischen steckverbindung
US5317664A (en) * 1992-12-15 1994-05-31 Thomas & Betts Corporation Fiber optic assembly and crimp sleeve used with the assembly
US5498838A (en) * 1993-09-16 1996-03-12 The Whitaker Corporation Modular electrical contact assemblies
US6811453B2 (en) * 2000-07-28 2004-11-02 Roger C. Williams Tine edge electrical contact
EP2779313A1 (fr) * 2013-03-14 2014-09-17 Siemens Aktiengesellschaft Ensemble de raccordement et terminaison électrique
US20160190721A1 (en) * 2013-07-30 2016-06-30 Abb Technology Ag Connecting device for a switchgear apparatus
US20180263650A1 (en) * 2015-11-25 2018-09-20 Olympus Corporation Connection structure and connection method
TWI700866B (zh) * 2018-03-21 2020-08-01 大陸商菲尼克斯亞太電氣（南京）有限公司 連接器用兩體式插針

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007051266B4 (de) * 2007-10-26 2012-05-31 Amphenol-Tuchel Electronics Gmbh Steckverbinderbuchsenhülse
CN110474177A (zh) * 2019-09-20 2019-11-19 四川华丰企业集团有限公司 用于方针与导线连接的转接结构及其转接方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2412447A (en) * 1942-07-31 1946-12-10 Berks County Trust Company Working and treating be-cu alloys
US2480280A (en) * 1945-09-24 1949-08-30 Thomas & Betts Corp Electric connector
US2563760A (en) * 1945-08-18 1951-08-07 Bendix Aviat Corp Electrical socket connector having fingers of tapered thickness
US3233211A (en) * 1962-11-19 1966-02-01 Brush Beryllium Co Elongated edge bonded multi-metal strip of dissimilar alloys
US3286222A (en) * 1964-04-09 1966-11-15 Itt Cannon Electric Inc Prestressed electrical contact

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2412447A (en) * 1942-07-31 1946-12-10 Berks County Trust Company Working and treating be-cu alloys
US2563760A (en) * 1945-08-18 1951-08-07 Bendix Aviat Corp Electrical socket connector having fingers of tapered thickness
US2480280A (en) * 1945-09-24 1949-08-30 Thomas & Betts Corp Electric connector
US3233211A (en) * 1962-11-19 1966-02-01 Brush Beryllium Co Elongated edge bonded multi-metal strip of dissimilar alloys
US3286222A (en) * 1964-04-09 1966-11-15 Itt Cannon Electric Inc Prestressed electrical contact

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002083A1 (fr) * 1977-11-11 1979-05-30 Itt Industries, Inc. Méthode pour la fabrication des douilles pour connecteurs électriques
US4195272A (en) * 1978-02-06 1980-03-25 Bunker Ramo Corporation Filter connector having contact strain relief means and an improved ground plate structure and method of fabricating same
US4275375A (en) * 1979-01-26 1981-06-23 Leco Corporation Heating element connector and method
DE3142286A1 (de) * 1981-10-24 1983-05-11 Feinmetall Gmbh, 7033 Herrenberg Verfahren zum herstellen einer steckbuchse einer elektrischen steckverbindung
US5317664A (en) * 1992-12-15 1994-05-31 Thomas & Betts Corporation Fiber optic assembly and crimp sleeve used with the assembly
US5498838A (en) * 1993-09-16 1996-03-12 The Whitaker Corporation Modular electrical contact assemblies
US6811453B2 (en) * 2000-07-28 2004-11-02 Roger C. Williams Tine edge electrical contact
EP2779313A1 (fr) * 2013-03-14 2014-09-17 Siemens Aktiengesellschaft Ensemble de raccordement et terminaison électrique
US20140262496A1 (en) * 2013-03-14 2014-09-18 Christopher Burrow Electrical Connection and Termination Assemblies
US10340611B2 (en) * 2013-03-14 2019-07-02 Siemens Aktiengesellschaft Electrical connection and termination assemblies
US20160190721A1 (en) * 2013-07-30 2016-06-30 Abb Technology Ag Connecting device for a switchgear apparatus
US9601856B2 (en) * 2013-07-30 2017-03-21 Abb Schweiz Ag Connecting device for a switchgear apparatus
US20180263650A1 (en) * 2015-11-25 2018-09-20 Olympus Corporation Connection structure and connection method
US10870143B2 (en) * 2015-11-25 2020-12-22 Olympus Corporation Connection structure and connection method
TWI700866B (zh) * 2018-03-21 2020-08-01 大陸商菲尼克斯亞太電氣（南京）有限公司 連接器用兩體式插針

Also Published As

Publication number Publication date
AU466733B2 (en) 1975-11-06
CA965169A (en) 1975-03-25
DE2140745A1 (de) 1972-05-10
NL7110726A (fr) 1972-05-12
BE771229A (fr) 1971-12-16
GB1358096A (en) 1974-06-26
AT318044B (de) 1974-09-25
FR2112920A5 (fr) 1972-06-23
AU3178371A (en) 1973-02-01
CH539957A (de) 1973-09-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ALLIED CORPORATION COLUMBIA ROAD AND PARK AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BUNKER RAMO CORPORATION A CORP. OF DE;REEL/FRAME:004149/0365

Effective date: 19820922

AS Assignment

Owner name: CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK AGENC

Free format text: SECURITY INTEREST;ASSIGNOR:AMPHENOL CORPORATION;REEL/FRAME:004879/0030

Effective date: 19870515

AS Assignment

Owner name: AMPHENOL CORPORATION, LISLE, ILLINOIS A CORP. OF D

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED CORPORATION, A CORP. OF NY;REEL/FRAME:004844/0850

Effective date: 19870602

Owner name: AMPHENOL CORPORATION, A CORP. OF DE, ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALLIED CORPORATION, A CORP. OF NY;REEL/FRAME:004844/0850

Effective date: 19870602

AS Assignment

Owner name: AMPHENOL CORPORATION A CORP. OF DELAWARE

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CANADIAN IMPERIAL BANK OF COMMERCE;REEL/FRAME:006147/0887

Effective date: 19911114