[go: up one dir, main page]

US3356987A - Insulation support and wire guide for an electrical connector - Google Patents

Insulation support and wire guide for an electrical connector Download PDF

Info

Publication number
US3356987A
US3356987A US571562A US57156266A US3356987A US 3356987 A US3356987 A US 3356987A US 571562 A US571562 A US 571562A US 57156266 A US57156266 A US 57156266A US 3356987 A US3356987 A US 3356987A
Authority
US
United States
Prior art keywords
barrel
sleeve
wire
projection
funnel
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
US571562A
Other languages
English (en)
Inventor
Gillespie James Francis
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Priority to US571562A priority Critical patent/US3356987A/en
Priority to IL28321A priority patent/IL28321A/xx
Priority to GR670134004A priority patent/GR34004B/el
Priority to GB33768/67A priority patent/GB1134571A/en
Priority to NL676710374A priority patent/NL144448B/xx
Priority to FI672086A priority patent/FI44643C/fi
Priority to DE19671615630 priority patent/DE1615630C3/de
Priority to BE702252D priority patent/BE702252A/xx
Priority to AT726867A priority patent/AT265398B/de
Priority to CH1108067A priority patent/CH460898A/fr
Priority to FR117379A priority patent/FR1533861A/fr
Priority to ES343962A priority patent/ES343962A1/es
Priority to SE11304/67A priority patent/SE336825B/xx
Priority to DK405367AA priority patent/DK122696B/da
Application granted granted Critical
Publication of US3356987A publication Critical patent/US3356987A/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
    • H01R4/10—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
    • H01R4/203—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 having an uneven wire-receiving surface to improve the contact
    • H01R4/206—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 having an uneven wire-receiving surface to improve the contact with transversal grooves or threads

Definitions

  • This invention relates to a terminal used in connecting a wire thereto.
  • the present terminal has means to support the wire where it joints the terminal so as to prevent undue bending stresses which normally concentrate at that point.
  • This support means is disclosed in US. Patent No. 2,405,111, and comprises a metal sleeve fitted over the terminal ferrule. More particularly, the present invention relates ot the above terminal having funneling means to guide the wire into place in the terminal.
  • terminals of the general type to which this invention is concerned have been in commercial use and include funnels directly behind the crimping ferrules thereof.
  • the funnel is on the insulation support sleeve and is defined by a V or U-shaped annular indent.
  • the V or U-shaped groove weakens the terminal assembly particularly when a portion of the insulation sleeve is expanded for larger wire sizes; the bonding between the insulation support sleeve and the insulation thereon does not occur therebetween at the location of the groove; less crimping area is obtained; and the application of the insulation onto the insulation support sleeve is difiicult because of the groove.
  • annular projection is integrally formed in the insulation sleeve directly behind the wire entry end of the ferrule. This projection is double in thickness, and is directed inwardly towards the ferrule so as to guide a conductor into a crimping position within the crimping area of the terminal.
  • Another object is the provision of a new and improved terminal which not only has a wire guide formed on its insulation support sleeve but has a strengthened support sleeve which will not buckle or collapse during the manufacture or use thereof.
  • Another object is to provide a terminal having more support area between an insulation support sleeve and the insulation jacket of a wire.
  • Another object is the provision of a terminal having more bonding area between an insulation support sleeve and an outer insulation sleeve.
  • Still another object is to provide a new and improved terminal having a substantially large flat crimping area not interrupted by large grooves and notches.
  • a further object is to provide a terminal wherein the outer insulaiton sleeve is easier to assemble to the terminal by virtue of a substantially uniform exterior surface on the insulation support sleeve.
  • an electrical connector comprising a contact section and a ferrule section, a sleeve having a first section and a second section, the first section disposed on the ferrule section, the second section having an inwardly-directed annular fold including a forward part and an adjacent rearward part disposed substantially parallel with respect to each other, the annular fold extending toward the ferrule section at an angle with respect to a longitudinal axis of the ferrule section and provided with an inner end terminating adjacent an inner end of the ferrule, the annular fold defining a funnel.
  • FIGURE 1 is a longitudinal cross-sectional View of a terminal in accordance with the invention.
  • FIGURE 2 is a view similar to that of FIGURE 1 but showing a wire entered therein;
  • FIGURE 3 is a view of the terminal of FIGURE 1 after crimping.
  • FIGURE 4 is a View similar to FIGURE 1 but showing a portion of the terminal expanded.
  • an electrical terminal T comprises a terminal connector or contact section 2 of the apertured-tongue type including a wire barrel or ferrule portion 4 coextensive therewith.
  • a thin metal insulation support sleeve 6 surrounds barrel 4 and extends from the wire entry end thereof.
  • An insulation sleeve 8 of suitable dielectric material is bonded or secured to support sleeve 6 constituting a pre-insulated electrical terminal.
  • the inside surface of ferrule portion 4 is preferably serrated and the entrance thereto has an arcuate configuration.
  • Support sleeve 6 has a funnel 10 defined by an inwardly-directed annular projection or fold having tapered walls which converge toward ferrule 4. It is desirable that these walls be in engagement but manufacturing tolerances may provide a slight gap between walls of some funnels which is still acceptable.
  • Funnel 10 primarily guides a conductor into proper place in barrel 4 and secondarily acts as a stop means to position sleeve 6 onto barrel 4.
  • Sleeves 6 and 8 along ferrule portion 4 are slightly reduced in diameter to secure these sleeves on the ferrule portion.
  • the inside diameter of funnel '10 is slightly larger than the inside diameter of ferrule portion 4.
  • Funnel 10 is formed by first indenting the sleeve 6 from the side while it spins on two mandrels which are disposed within the sleeve in spaced relationship. With the side indenting tool removed, one mandrel is held stationary while the other mandrel is moved axially towards the indent. This arrangement collapses the indent and directs its wall toward one end.
  • Sleeve 6 is hardened during the formation of the funnel. After funnel -10 has been formed in sleeve 6, an annealing operation is performed on sleeve 6 to insure against the sleeve splitting during crimping. The resultant funnel is stronger by virtue of the adjacent walls. The sleeve may then be'plated and the insulation sleeve is applied to the non-plated or plated sleeve.
  • the conductor C of a wire W is easily guided into the center of wire barrel 4 because strands of the conductor which may previously have been fanned outwardly, through handling, have been pointed and directed into barrel 4.
  • a terminal is cold forged onto a wire W and conductor C to effect an electrical and mechanical connection.
  • One crimp A is made directly over wire barrel 4 and another crimpB is made onto a portion of sleeve 6 which contains the insulation jacket of wire W.
  • funnel 10 is deformed little if any from its original shape.
  • FIGURE 4 illustrates a modified form of the invention wherein portions of sleeves 6 and 8 are expanded radially. This is done so that wires with substantially larger insulation jackets may be terminated. Expansion is usually dine by forcing an oversize mandrel into the rearward end 12 of sleeves 6 and 8. In prior terminals, the expansion caused V or U shaped wire guides to collapse or become deformed to the point where they were no longer operable as wire guides. In the present invention, double walls of funnel 10 along with the acute angle of the funnel strengthen the wire guide and prevent its deformation during expansion.
  • terminals can be crimped at relatively high pressures with no detrimental effect to the connection.
  • Funnel 10 is directed inwardly toward barrel 4 at approximately a 30 angle, therefore any excessive crimping pressure will cause the funnel to tend to flatten rather than bite into conductor C.
  • the present invention may be used in conjunction with connectors to splice wirestogether as well as the support sleeve without any insulation sleeve thereon. It should also be further pointed out that the present invention is directed to automatically feeding wires into the sleeve and barrel portions ofterminals but that the configuration of the funnel means is equally applicable and advantageous to hand tool application.
  • the combination comprising a wire barrel adapted to receive a wire conductor
  • said projection having a forward edge disposed adjacent the opposite end of the barrel to position said sleeve onto said barrel and a rearward transitional slope defining funnel means together andpoint all strands of said conductor towards-the center of said projection and guide said conductor into said barrel, said'proje'ction having an inside diameter slightly larger than the inside diameter of said barrel, said projection having a doublewall section to strengthen said funnel.
  • a connector according to claim 1 wherein said transitional slope has an approximate 30 taper.
  • An electrical connector comprising a wire barrel adapted to receive a wire conductor, a metallic sleeve fitted to and extending beyond the mouth end of said barrel to support a wire where it joins said barrel, and an insulation sleeve over said metallic sleeve, an annular projection in said sleeve, said projection having a forward edge disposed adjacent the opposite end of the barrel to position said sleeve onto said ferrule and a rearward transitional slope defining funnel means to direct said conductor towards the center of said projection and guide said conductor into said barrel, said projection having an inside diameter slightly greater than the inside diameter of said barrel, said projection having a double wall section in combination with an acute bend of material to strengthen said funnel.
  • An electrical connector comprising a contact section and a ferrule section, a sleeve having a first section and a second section, the first section disposed on the terrule section, the second section having an inwardly-directed annular fold including a forward part and an adjacent rearward part disposed substantially parallel with respect to each other, the annular fold extending toward the ferrule section at an angle with respect to a longitudinal axis of the ferrule section and provided with an inner end terminatingadjacent an inner end of the ferrule, the annularfold'defining a funnel.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Multi-Conductor Connections (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
US571562A 1966-08-10 1966-08-10 Insulation support and wire guide for an electrical connector Expired - Lifetime US3356987A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US571562A US3356987A (en) 1966-08-10 1966-08-10 Insulation support and wire guide for an electrical connector
IL28321A IL28321A (en) 1966-08-10 1967-07-16 Electrical connector
GR670134004A GR34004B (el) 1966-08-10 1967-07-17 Ηλεκτρικος συνδετης.
GB33768/67A GB1134571A (en) 1966-08-10 1967-07-21 An electrical connector
NL676710374A NL144448B (nl) 1966-08-10 1967-07-27 Elektrisch verbindingsorgaan om te worden gekrompen op een elektrische geleider, voorzien van een krimpbuisorgaan en een daaroverheen aangebrachte krimpsteunhuls.
FI672086A FI44643C (fi) 1966-08-10 1967-07-31 Sähköliitin
DE19671615630 DE1615630C3 (de) 1966-08-10 1967-08-02 Elektrische Verbindungsklemme
BE702252D BE702252A (fr) 1966-08-10 1967-08-03
AT726867A AT265398B (de) 1966-08-10 1967-08-04 Elektrische Verbindungsklemme
CH1108067A CH460898A (fr) 1966-08-10 1967-08-07 Connecteur électrique
FR117379A FR1533861A (fr) 1966-08-10 1967-08-09 Connecteur électrique
ES343962A ES343962A1 (es) 1966-08-10 1967-08-09 Un dispositivo conectador electrico.
SE11304/67A SE336825B (fr) 1966-08-10 1967-08-09
DK405367AA DK122696B (da) 1966-08-10 1967-08-09 Elektrisk forbindelsesklemme.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US571562A US3356987A (en) 1966-08-10 1966-08-10 Insulation support and wire guide for an electrical connector

Publications (1)

Publication Number Publication Date
US3356987A true US3356987A (en) 1967-12-05

Family

ID=24284193

Family Applications (1)

Application Number Title Priority Date Filing Date
US571562A Expired - Lifetime US3356987A (en) 1966-08-10 1966-08-10 Insulation support and wire guide for an electrical connector

Country Status (13)

Country Link
US (1) US3356987A (fr)
AT (1) AT265398B (fr)
BE (1) BE702252A (fr)
CH (1) CH460898A (fr)
DK (1) DK122696B (fr)
ES (1) ES343962A1 (fr)
FI (1) FI44643C (fr)
FR (1) FR1533861A (fr)
GB (1) GB1134571A (fr)
GR (1) GR34004B (fr)
IL (1) IL28321A (fr)
NL (1) NL144448B (fr)
SE (1) SE336825B (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512123A (en) * 1966-12-22 1970-05-12 Amp Inc Guide and crimp-locating means in electrical connectors and method and apparatus for making same
US3594713A (en) * 1970-03-06 1971-07-20 Amp Inc Electrical connector
US3605077A (en) * 1969-04-18 1971-09-14 Amp Inc Wire stop and wire guide in terminals and connectors
US3673549A (en) * 1970-06-01 1972-06-27 Itt Fully insulated quick disconnect
EP0004146A1 (fr) * 1978-03-08 1979-09-19 AMP INCORPORATED (a New Jersey corporation) Connecteur électrique comportant une douille de sertissage
US5167066A (en) * 1991-08-08 1992-12-01 Mize & Co., Inc. Method for producing an insulated electrical connector
FR2679074A1 (fr) * 1991-07-08 1993-01-15 Aerospatiale Conducteur de metallisation pour la realisation de liaisons assurant une continuite electrique entre pieces mecaniques.
US5522739A (en) * 1994-04-15 1996-06-04 Panduit Corp. Insulated terminal with integral dual flared barrel
US5749756A (en) * 1995-10-27 1998-05-12 The Whitaker Corporation Sealed corrosion-proof crimped terminal of splice
US8519267B2 (en) 2009-02-16 2013-08-27 Carlisle Interconnect Technologies, Inc. Terminal having integral oxide breaker
CN103944035A (zh) * 2014-05-10 2014-07-23 国家电网公司 细丝绞线与管型端子的粘合连接法
US9985362B2 (en) 2015-10-22 2018-05-29 Carlisle Interconnect Technologies, Inc. Arc resistant power terminal
US10164348B2 (en) 2009-02-16 2018-12-25 Carlisle Interconnect Technologies, Inc. Terminal/connector having integral oxide breaker element
US20200169010A1 (en) * 2017-04-07 2020-05-28 Sumitomo Wiring Systems, Ltd. Conductive member

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210381A (en) * 1978-08-30 1980-07-01 Amerace Corporation Electrical connector contacts
FR2553594B1 (fr) * 1983-10-14 1986-02-21 Auxiliaire Appar Electric Connecteur pour cables electriques isoles
FR2745213A1 (fr) * 1996-02-27 1997-08-29 Michel Monnet Sa Procede permettant d'augmenter la resistance a l'arrachement de pieces de liaison serties sur les extremites denudees de l'isolant d'un cable de liaison mecanique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405111A (en) * 1942-09-25 1946-08-06 Aircraft Marine Prod Inc Electrical connection
US2410321A (en) * 1943-12-14 1946-10-29 Aircraft Marine Prod Inc Electrical connector
US2823250A (en) * 1955-02-17 1958-02-11 Amp Inc Insulated closed end connector
US2939905A (en) * 1954-03-05 1960-06-07 Earl L Canfield Electrical conductors, connections and methods of connection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405111A (en) * 1942-09-25 1946-08-06 Aircraft Marine Prod Inc Electrical connection
US2410321A (en) * 1943-12-14 1946-10-29 Aircraft Marine Prod Inc Electrical connector
US2939905A (en) * 1954-03-05 1960-06-07 Earl L Canfield Electrical conductors, connections and methods of connection
US2823250A (en) * 1955-02-17 1958-02-11 Amp Inc Insulated closed end connector

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512123A (en) * 1966-12-22 1970-05-12 Amp Inc Guide and crimp-locating means in electrical connectors and method and apparatus for making same
US3605077A (en) * 1969-04-18 1971-09-14 Amp Inc Wire stop and wire guide in terminals and connectors
US3594713A (en) * 1970-03-06 1971-07-20 Amp Inc Electrical connector
US3673549A (en) * 1970-06-01 1972-06-27 Itt Fully insulated quick disconnect
EP0004146A1 (fr) * 1978-03-08 1979-09-19 AMP INCORPORATED (a New Jersey corporation) Connecteur électrique comportant une douille de sertissage
FR2679074A1 (fr) * 1991-07-08 1993-01-15 Aerospatiale Conducteur de metallisation pour la realisation de liaisons assurant une continuite electrique entre pieces mecaniques.
US5167066A (en) * 1991-08-08 1992-12-01 Mize & Co., Inc. Method for producing an insulated electrical connector
WO1993003519A1 (fr) * 1991-08-08 1993-02-18 Mize & Co., Inc. Appareil et procede destines a produire un raccord electrique isole
US5522739A (en) * 1994-04-15 1996-06-04 Panduit Corp. Insulated terminal with integral dual flared barrel
US5749756A (en) * 1995-10-27 1998-05-12 The Whitaker Corporation Sealed corrosion-proof crimped terminal of splice
US8519267B2 (en) 2009-02-16 2013-08-27 Carlisle Interconnect Technologies, Inc. Terminal having integral oxide breaker
US10164348B2 (en) 2009-02-16 2018-12-25 Carlisle Interconnect Technologies, Inc. Terminal/connector having integral oxide breaker element
CN103944035A (zh) * 2014-05-10 2014-07-23 国家电网公司 细丝绞线与管型端子的粘合连接法
US9985362B2 (en) 2015-10-22 2018-05-29 Carlisle Interconnect Technologies, Inc. Arc resistant power terminal
US20200169010A1 (en) * 2017-04-07 2020-05-28 Sumitomo Wiring Systems, Ltd. Conductive member

Also Published As

Publication number Publication date
NL6710374A (fr) 1968-02-12
GB1134571A (en) 1968-11-27
ES343962A1 (es) 1968-10-01
AT265398B (de) 1968-10-10
GR34004B (el) 1968-03-06
DE1615630B2 (de) 1975-05-28
SE336825B (fr) 1971-07-19
IL28321A (en) 1971-07-28
CH460898A (fr) 1968-08-15
FR1533861A (fr) 1968-07-19
FI44643C (fi) 1971-12-10
DE1615630A1 (de) 1970-06-04
FI44643B (fr) 1971-08-31
NL144448B (nl) 1974-12-16
DK122696B (da) 1972-03-27
BE702252A (fr) 1968-01-15

Similar Documents

Publication Publication Date Title
US3356987A (en) Insulation support and wire guide for an electrical connector
US3390374A (en) Coaxial connector with cable locking means
US3384704A (en) Connector for composite cables
US2904619A (en) Shielded wire connectors
US2693216A (en) Tool for electrical connectors
US7611392B2 (en) Terminal with integral strain relief
US20080184553A1 (en) Coaxial connector and coaxial cable connector assembly
JP7096123B2 (ja) シールド電線の端子接続構造
US11581666B2 (en) Sleeve and shield terminal manufacturing method
JP7240607B2 (ja) ケーブル付きコネクタ
CA2050797C (fr) Groupe contact femelle a entree fermee
JP5948180B2 (ja) 電気端子
US3594713A (en) Electrical connector
US2596528A (en) Electrical connector having coaxial barrels of different diameters
US3537167A (en) Preform cold-crimp sleeve applicator
US4371229A (en) Integral electrical connector and method for making same
JP6376030B2 (ja) 端子および端子付き電線
JP7103204B2 (ja) コネクタ構造体
JP3392229B2 (ja) 圧着端子組立体
US3512123A (en) Guide and crimp-locating means in electrical connectors and method and apparatus for making same
US8272901B2 (en) Crimp contacts and electrical connector assemblies including the same
US3634817A (en) Electrical connector assembly and method of making same
US3474399A (en) Crimping ferrule with insert rings of hard material
US3500296A (en) Means and method for crimped high frequency connectors
KR20160119689A (ko) 코일단말의 접속구조