CA1211175A - Wire-slot type electrical terminal intended for mating with a terminal tab - Google Patents

Wire-slot type electrical terminal intended for mating with a terminal tab

Info

Publication number
CA1211175A
CA1211175A CA000450941A CA450941A CA1211175A CA 1211175 A CA1211175 A CA 1211175A CA 000450941 A CA000450941 A CA 000450941A CA 450941 A CA450941 A CA 450941A CA 1211175 A CA1211175 A CA 1211175A
Authority
CA
Canada
Prior art keywords
conductor
terminal
contact
members
plate
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
Application number
CA000450941A
Other languages
French (fr)
Inventor
Charles E. Reynolds
Charles H. Weidler
George E. Trout
Donald L. Metzger
Donald W.K. Hughes
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
Priority claimed from US06/485,763 external-priority patent/US4527857A/en
Application filed by AMP Inc filed Critical AMP Inc
Application granted granted Critical
Publication of CA1211175A publication Critical patent/CA1211175A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/10Sockets for co-operation with pins or blades
    • H01R13/11Resilient sockets
    • H01R13/113Resilient sockets co-operating with pins or blades having a rectangular transverse section

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

WIRE-SLOT TYPE ELECTRICAL TERMINAL

INTENDED FOR MATING WITH A TERMINAL TAB

ABSTRACT:
Stamped and formed electrical terminal has a conductor-receiving portion at one end end a mating or contact portion at the other end. A transition section is provided between the conductor-receiving portion and the contact portion, the transition section comprising flat plates which extend from the aligned parallel plates of the conductor-receiving portion and slope towards a medial plane which is parallel to and between the plates of the conductor-receiving portion. The contact portion comprises first and second pairs of contact arms which extend from the flat inclined plates of the transition section and which are joined at their ends by U-shaped sections which are in back-to-back relationship. A locking ear secures the U-shaped sections to each other.

Description

WIRE-SLOT TYPE ELECTRICAL TERMINAL
INTENDED FOR MATING With A TERMINAL TAB
This invention relates to electrical terminals of the type having aligned parallel plate-like members at one end and conductor-receiving slots in the plate-like members and two pairs of contact arms at the other ends thereof with a transition section between the plate-like members and the contact portion.
U . S. Patent 4,159 ,158 describes a sheet metal electrical terminal comprising parallel spaced apart plate-like members which have aligned conductor-receiving slots. The terminal further has a contact portion comprising side-by-side arms that extend from the plate-like members and which engage a complementary contact terminal when the two terminals are mated. Terminals of the type shown in US. Patent 4,159,158 have come into widespread usage and are highly regarded for the reason that a conductor can be connected to the terminal by merely moving the conductor laterally of its axis and into the conductor-receiving slots. A variety of tools and automatic machines have been developed for connecting individual conductors to terminals contained in an insulating housing.
Terminals of the general type described in the above-identified Us patent thus permit manufacture of electrical harnesses at minimum cost and in a variety of forms.
Presently available terminals of the general type shown in US. Patent 4,159,158 are somewhat limited as regards the characteristics of the contact portion of the terminal. The I
terminal shown In that patent has a contact portion comprising side-by-side arms which receive a complementary terminal post between their opposed surfaces. Because of the manner in which these terminals are manufactured, the side-by-side arms 5 cannot conveniently be resiliently biased against each other and the terminal is therefore limited with regard to the amount of contact force which can be developed when the terminal is mated with a complementary/ terminal. Under some circumstances, a relatively high contact force is required and existing terminals of 10 the type shown in U . S. Patent 4,159,158 are incapable of satisfying the requirement of a high contact force.
In accordance with one aspect thereof, the invention is directed to the achievement of a terminal of the general type disclosed in U. S. Patent 4 ,159,158 having contact arms which are 15 resiliently biased against each other thereby to provide a relatively high contact force when the terminal is mated with a complementary terminal.
A further shortcoming of terminals of the general type shown in U . S . Patent 4 ,159 ,158 is that when such terminals are 20 assembled to a multi conductor connector, the terminals must be positioned in side-by-side spaced apart relationship and the contact portions of the terminals are such that the connector cannot be designed to be mated with a plurality of simple terminal tabs which are disposed in parallel planes with each 25 terminal located relatively close to its immediate neighbors. It is common practice in the manufacture of many electrical devices to Lyle provide simple rectangular tabular tabs in spaced apart relationship with the tabs in parallel planes and a connector for an array of tabs must be capable of being mated with the tabs.
In accordance with a further aspect thereof, the present 5 invention is directed to the achievement of a terminal which can be assembled to a connector housing and which can be mated with closely spaced terminal tabs in side-by-side relationship with the tabs in parallel spaced apart planes.
The invention comprises a stamped and formed electrical 10 terminal of the type having a conductor-receiving end and a contact end, a conductor-receiving portion which extends from the conductor-receiving end, a contact portion which extends from the contact end, and a transition portion which is between the conductor-receiving portion and the contact portion. The 15 conductor-receiving portion comprises first and second aligned flat plate-like members which are connected to each other, the plate-like members having aligned conductor-receiving slots 50 that a conductor can be moved laterally of its axis and into the conductor-receiving slots. The transition portion and the 20 contact portion extend from the firs and second plate-like members. The terminal is characterized in that the transition portion comprises firs and second extensions of the plate-like members and first and second U-shaped sections. The first and second extensions extend from the first and second plate-like 25 members con~rergently towards a medial plane that is parallel to, and between, the first and second potluck members. Each of the U-shaped sections comprises a web and sidewalls, the webs extending from the extensions and being on each side of the medial plane. The sidewalls extend away from the medial plane.
The contact portion comprises first and second pairs of contact 5 arms which extend from the sidewalls of the first and second U-shaped sections. The arms of each pair of contact arms have free ends which have opposed contact zones whereby a conductor which is in the conductor-receiving slots will lie in the plane of a terminal tab which is inserted between the contact zones of the 10 first and second pairs of contact arms.
A further embodiment is characterized in that the transition sections are secured to each other by an ear which extends from the web of one of the Unshaped sections and which is interlocked with the web of the other U-shaped section.
FIGURE 1 is a perspective view of an electrical terminal in accordance with the invention;
FIGURE 2 is a perspective view of a flat blank from which the terminal of Figure 1 is produced by forming operations;
FIGURES 3, 4 and 5 are views similar to Figure 2 but 20 illustrating the successive forming operations which are performed on the blank prior to bending the blank into the shape of the finished terminal, and FIGURE 6 is a view showing a plurality of terminal tabs on a support, such as a circuit board, and showing a connector 25 containing terminals in accordance with the invention in alignment with the terminal tabs.

~L213L17,~

Referring first to Figure 1, a terminal 2 in accordance with the invention is of stamped and formed sheet metal, such as brass, and has a conductor-receiving portion 4, a contact or mating portion 6, and a transition section 8 which is between the conductor-receiving portion end the contact portion.
The conductor-receiving portion comprises a pair of parallel plate-like members 10, aye which are connected together at their upper ends 12 (as viewed in Figure 1) by spaced-apart connecting straps 14. The plate-like members are provided with aligned wire-receiving slots 16, aye so that a wire 50 can be connected to the terminal by moving the wire laterally of its axis and into the slots as shown in Figure 6.
The transition section 8 comprises first and second flat extensions 18, aye of the first and second plate-like members 10, 1 Ox . The extensions 18, aye are inclined inwardly towards each other and towards a medial plane which extends parallel to the planes of the plate-like members 10, aye and is midway between the plate-like members. The extensions 18, aye have converging side edges 20, aye and 22, aye which are integral with the flat web portions 26, aye of U-shaped sections 24, aye. The U-shaped sections have sidewalls 28, 30, aye, aye extending from the webs 26, aye, the sidewalls extending in opposite directions from the side edges of the web portions. The web portions are parallel to each other and are on each side of, and adjacent to, the medial plane.

First and second pairs of contact arms 32, 34, aye, aye extend from the sidewalls of the U-shaped sections 24, aye to the free ends 36, aye of the terminal. The arms of each pair are inclined towards each other and are against each other in S the vicinity of contact zones 40, aye. The portions which extend beyond the contact Jones are curved outwardly and away from each other to facilitate relating of the terminal with a terminal tab 52.
Terminals as shown in Figure 1 are produced by stamping and forming as shown in Figures 2 to 5. In these Figures, the same reference numerals, differentiated by prime marks, are used to indicate the portions of the blank as are used to identify the parts of the finished terminal.
The terminals are produced in the form of continuous strip with the ends of each blank 2' integral with carrier strips 44, aye. In addition it will be understood that each terminal is connected to the next adjacent terminals in the strip by additional carrier strips which extend from the connecting strips 14', Figure 2. These additional connecting strips or carrier strips are not shown in the interest of clarity and facility. In the forming operation, the contact arms 32', 34', aye', aye' are first bent upwardly from the plane of the blank and the outer ends of the arms are curled downwardly as viewed in Figure 3.
Thereafter, the triangular extensions 18', aye' are bent as shown in Figure 4 so that the U-shaped sections 24', aye' are disposed in a plane which is parallel to but beneath the plane of the I
central portion of the blank. Thereafter, the sidewalls of the blank are bent upwardly as shown in Figure 5 to bring the contact zones 40, aye against each other. When the final bending operation is carried out as shown in Figure 5, the arms 5 will be resiliently biased against each other so that a relatively high contact force will be achieved when the terminal is mated with a terminal tab 52.
In the final forming operation, the terminal is bent along bend lines 46, aye to place the first and second plate-like 10 members 10, aye in parallel spaced apart planes.
Advantageously, a latching ear 42 extends from the web 26' and, after the final bending operation, this latching ear is bent through an angle of 180 degrees as shown in Figure 1 so that the two sections of the terminal will be latched to each other.
Terminals as shown in Figure 1 are used with an insulating housing 48 that has the capability of accommodating a plurality of terminals 2 in side-by-side spaced apart relationship. As shown in Figure 6, the terminal tabs for which the terminal 2 is intended are usually positioned in parallel spaced apart planes on 20 a support member 54. By virtue of the fact that the terminal 2 receives a tab 52 which is in a plane extending through the aligned slots 16, aye, the terminals can be placed on relatively close centers in the connector housing 48.
It will be apparent from the foregoing that terminals in 25 accordance with the invention can be produced by relatively simple stamping and forming operations involving only forming of the arms 32, 34, aye, aye, bending of the sidewalls as shown in Figure 5, and then bending of the first and second plate-iike members to produce the terminal in Figure 1. It should be noted that the sidewalls 28, 30, aye, aye extend at an angle of substantially 90 degrees to their respective webs 26, aye and this sidewall bending operation is carried out after the flat transition sections 18, aye are bent downwardly as shown in Figure 3. All of these bending operations can be carried out with relative ease in a progressive stamping and forming die.
There is no necessity for forming operations which require the production of complex shapes in the transition zone.

Claims (5)

The embodiments of the invention for which an exclusive property or privilege is claimed are as follows:
1. A stamped and formed electrical terminal of the type having a conductor-receiving end and a contact end, a conductor-receiving portion extending from the conductor-receiving end and a contact portion extending from the contact end, and a transition portion between the conductor-receiving portion and the contact portion, the conductor-receiving portion comprising first and second aligned flat plate-like members which are connected to each other, the plate-like members having aligned conductor-receiving slots so that a conductor can be moved laterally of its axis and into the conductor-receiving slots, the transition portion and the contact portion extending from the first and second plate-like members, the terminal being characterized in that:
the transition portion comprises first and second extensions of the plate-like members and first and second U-shaped sections, the first and second extensions extending from the first and second plate-like members convergently towards a medial plane that is parallel to, and between, the first and second plate-like members, each of the U-shaped sections comprising a web and sidewalls, the webs extending from the extensions and being on each side of the medial plane, the sidewalls extending away from the medial plane, the contact portion comprising first and second pairs of contact arms which extend from the sidewalls of the first and second U-shaped sections, the arms of each pair of contact arms having free ends, the free ends having opposed contact zones whereby a conductor which is in the conductor-receiving slots will lie in the plane of a terminal tab which is inserted between the contact zones of the first and second pairs of contact arms.
2. A stamped and formed electrical terminal as set forth in Claim 1 characterized in that the transition sections are secured to each other.
3. A stamped and formed electrical terminal as set forth in Claim 2 characterized in that the transition sections are secured to each other by an ear extending from the web of one of the U-shaped sections which is interlocked with the web of the other U-shaped section.
4. A stamped and formed electrical terminal as set forth in either of Claims 1 or 3 characterized in that the first and second plate-like members are connected to each other by connecting straps which extend between, and are integral with, the first and second plate-like members.
5. A stamped and formed electrical terminal as set forth in Claim 4 characterized in that the first and second extensions are flat and each extension has convergent side edges.
CA000450941A 1983-04-18 1984-03-30 Wire-slot type electrical terminal intended for mating with a terminal tab Expired CA1211175A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US485,763 1983-04-18
US06/485,763 US4527857A (en) 1983-04-18 1983-04-18 Terminal for connecting a wire to a blade type terminal
US56467083A 1983-12-23 1983-12-23
US564,670 1983-12-23

Publications (1)

Publication Number Publication Date
CA1211175A true CA1211175A (en) 1986-09-09

Family

ID=27048470

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000450941A Expired CA1211175A (en) 1983-04-18 1984-03-30 Wire-slot type electrical terminal intended for mating with a terminal tab

Country Status (7)

Country Link
EP (1) EP0122780B1 (en)
AU (1) AU567336B2 (en)
CA (1) CA1211175A (en)
DE (1) DE3461406D1 (en)
ES (1) ES287009Y (en)
MX (1) MX155836A (en)
SG (1) SG61289G (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198890B (en) * 1986-12-11 1992-01-08 Johnson Electric Ind Mfg A commutator for an electric motor
GB2202998A (en) * 1987-03-16 1988-10-05 Johnson Electric Ind Mfg A method of connecting an armature winding to a commutator
DE3808197A1 (en) * 1988-03-11 1989-10-05 Hans Simon ELECTRICAL TERMINAL
US4889006A (en) * 1988-03-24 1989-12-26 Briggs & Stratton Corporation Engine speed control cable clip attachment
DE3826670C2 (en) * 1988-08-05 1994-11-17 Framatome Connectors Int Flat contact socket
JP2861661B2 (en) * 1992-08-25 1999-02-24 住友電装株式会社 Joint connector
GB9303835D0 (en) * 1993-02-25 1993-04-14 Amp Gmbh Insulation displacement electrical terminal assembly
DE4329813C2 (en) * 1993-09-03 1996-07-04 Grote & Hartmann Electrical contact element
DE4335828A1 (en) * 1993-10-20 1995-04-27 Grote & Hartmann Electrical flat plug contact socket
DE102009006828A1 (en) * 2009-01-30 2010-08-05 Tyco Electronics Amp Gmbh Insulation displacement contact with decoupling point and contact arrangement with insulation displacement contact
SE545370C2 (en) * 2021-11-26 2023-07-18 Fumex Ab Grounding device for a local gas extractor, a local gas extractor with such a grounding device and a method for mounting such a grounding device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159158A (en) * 1977-05-06 1979-06-26 Amp Incorporated Displation connector having improved terminal supporting means
FR2457572A2 (en) * 1979-05-23 1980-12-19 Souriau & Cie SELF-CLOSING TERMINAL WITH ELASTIC FORK, AND CONNECTOR PROVIDED WITH SUCH A TERMINAL
DE2900303A1 (en) * 1979-01-05 1980-07-17 Grote & Hartmann DOUBLE FLAT SPRING
NZ193872A (en) * 1979-06-29 1982-12-07 Amp Inc Electrical contact member and incorporated connector
AU7493581A (en) * 1980-09-17 1982-03-25 Utilux Pty Limited Electrical tab receptacle
US4405193A (en) * 1981-06-08 1983-09-20 Amp Incorporated Preloaded electrical connector

Also Published As

Publication number Publication date
EP0122780B1 (en) 1986-11-20
ES287009Y (en) 1986-06-16
MX155836A (en) 1988-05-10
EP0122780A1 (en) 1984-10-24
DE3461406D1 (en) 1987-01-08
SG61289G (en) 1989-12-29
ES287009U (en) 1985-11-16
AU567336B2 (en) 1987-11-19
AU2670384A (en) 1984-10-25

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