WO1990007805A1 - Borne de prise de courant dotee d'un moyen de retention - Google Patents

Borne de prise de courant dotee d'un moyen de retention Download PDF

Info

Publication number
WO1990007805A1
WO1990007805A1 PCT/US1989/005591 US8905591W WO9007805A1 WO 1990007805 A1 WO1990007805 A1 WO 1990007805A1 US 8905591 W US8905591 W US 8905591W WO 9007805 A1 WO9007805 A1 WO 9007805A1
Authority
WO
WIPO (PCT)
Prior art keywords
tab
terminal
receptacle terminal
sidewalls
set forth
Prior art date
Application number
PCT/US1989/005591
Other languages
English (en)
Inventor
Jurgen Hass
Original Assignee
Amp Incorporated
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 Incorporated filed Critical Amp Incorporated
Priority to JP2502417A priority Critical patent/JP2801774B2/ja
Priority to DE90901949T priority patent/DE68909223T2/de
Publication of WO1990007805A1 publication Critical patent/WO1990007805A1/fr

Links

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
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
    • 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
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart
    • H01R31/085—Short circuiting bus-strips

Definitions

  • the invention relates to an electrical receptacle terminal of the type intended to receive a flat rectangular terminal tab.
  • the invention is directed to a recepTacle terminal which has a retention means to maintain the tab in various positions relative to the receptacle terminal.
  • U.S. Patent Number 3,976,348 (U.S. Reissue Patent Number 30,277) discloses a stamped and formed electrical terminal receptacle which is dimensioned to receive a terminal tab having a rectangular cross section.
  • the receptacle terminal is of the type having a web and having sidewalls which extend from the marginal side portions of the web. The sidewalls are formed inwardly towards each other and towards the web so that a terminal tab can be inserted between the surface of the web and the free edge portions of the sidewalls. Terminals of this general type are widely used for the reason that they can be mated with standard terminal tabs having a rectangular cross section.
  • Patent Number 3,976,348 has a tongue extending from the web at the tab receiving end of the receptacle.
  • the tongue is reversely bent at the tab receiving end and has an intermediate portion which engages an inserted tab.
  • the free end of the tongue extends beyond the receptacle section or portion of the terminal and is engageable so that it can be flexed towards the web.
  • the intermediate portion of the tongue has a locking lance which is received in an opening in the tab which locks the tab to the terminal receptacle upon insertion.
  • the tab can be disengaged by simply flexing the tongue towards the web portion of the terminal.
  • Terminal receptacle having locking features are being used to an increasing extent on a variety of types of electrical equipment.
  • the provision of preventing disengagement of the receptacle from an inserted tab is highly desirable for reasons of improved reliability and safety.
  • Terminal receptacles which are used under circumstances where unauthorized tampering may be a problem can be provided with the locking feature of the above identified U.S. Patent to eliminate problems with unauthorized or mischievous meddling.
  • Tab type terminals intended to be mated with receptacles as described above are manufactured in two standard widths, 4.7 mm and 2.8 mm.
  • receptacle terminals having locking lances have generally been manufactured for terminals having the greater width, for the reason that is is impractical to simply scale down or reduce the size of the receptacle and the locking lance so that the receptacle will accept a terminal tab having a width of 2.8 mm.
  • U.S. Patent Number 4,534,613 is directed to the achievement of a receptacle terminal which has a locking lance and which is dimensioned to receive the smaller standard tab therein.
  • Patent Number 4,534,613 discloses a receptacle terminal which has a substantially flat web portion and contact springs which extend in one direction from the side edge portion of the web.
  • the contact springs extend inwardly over the web and have end portions which are spaced from the web and which engage an inserted tab.
  • a first pair of positioning ears are provided at the mating end of the terminal and extend inwardly of the web and towards each other.
  • a second pair of positioning ears are formed from the contact springs and extend towards each other.
  • the positioning ears locate a tab centrally on the web.
  • a locking lance is struck from the web and serves to lock an inserted tab to the receptacle. This configuration allows the receptacle to be cooperate with the smaller standard tabs (2.8 mm) .
  • the locking lances described cooperate with the tab terminal when the tab is fully inserted or fully assembled into the receptacle terminal. However, in many instances it would prove beneficial if an additional locking feature was provided which would maintain the tab terminal in a preassembled position relative to the receptacle terminal.
  • the present invention is directed to an electrical receptacle terminal which receives a tab terminal therein.
  • the receptacle terminal has a mating end and an inner end.
  • a web portion extends from the mating end to the inner end, the web portion has resilient sidewalls which extend therefrom.
  • the resilient sidewalls are formed inwardly towards each other and towards one surface of the web, such that free edge portions of the sidewalls are spaced from a surface of the web by a distance which is less than the thickness of the tab terminal.
  • the electrical receptacle terminal is characterized in that first and second tab engagement means are provided thereon.
  • the first tab engagement means are provided proximate the mating end of the receptacle terminal, and the second tab engagement means are provided proximate the inner end of the receptacle terminal.
  • the first tab engagement means will cooperate with the tab terminal to position the tab terminal and receptacle terminal in a preassembled condition.
  • the second tab engagement means will cooperate with the tab terminal to position the tab terminal and the receptacle terminal in a fully assembled condition.
  • FIGURE 1 is a top plan view showing several receptacle terminals of the present invention, two of the receptacle terminals are fully inserted onto respective tab terminals, while the other receptacle terminal is shown in the preassembled position.
  • FIGURE 2 is a cross-sectional view taken along line 2-2 of Figure 1, showing the receptacle terminal in the preassembled position .
  • FIGURE 3 is a cross-sectional view taken along line 3-3 of Figure 1, showing the receptacle terminal in the fully inserted or assembled position.
  • FIGURE 4 is a cross-sectional view taken along line 4-4 of Figure 3, showing the locking ears of the receptacle terminal position in the opening of the tab terminal when the receptacle terminal is in the fully inserted position.
  • a receptacle terminal 2 in accordance with the invention has a wire receiving end 8 which is crimped onto an insulated wire by means of an insulation crimp and a wire crimp which establishes electrical contact between the terminal and the metallic core of the wire.
  • the terminal is of stamped and formed conductive sheet metal and has a receptacle portion 4 which receives a rectangular tab 6 therein.
  • the terminal has a mating end 12, an inner end 14, and a transition section 16 which extends from the inner end to the wire receiving end.
  • the receptacle portion 4 comprises a web 18 which extends from the mating end 12 to the inner end 14.
  • Sidewalls 20 extend from marginal side portions of the web. As shown in Figure 4, sidewalls 20 extend from the side portions of the web and are reversely bent through an angle of 180 degrees, so that free edge portions 22 extend normally toward the web. The sidewalls are bent towards each other, similar to that as shown in Figure 4.' It is important to note that the free edge portions 22 of sidewalls 20 are spaced from the surface of web 18 when the sidewalls are bent into position. The spacing provided between the free edge portions 22 and web 18 is less than the thickness of the tab.
  • each tab engagement projection 24 is essentially triangular in shape, with the base of the triangle being integral with the respective sidewall.
  • a leading sloping surface 26 of each tab engagement projection 24, as shown in Figures 2 and 3, is utilized as a lead in surface, as will be discussed.
  • Recesses 28 are provided on free edge portions 22 proximate the tab engagement projections 24.
  • recesses are positioned closer to inner end 14 than are projections 24.
  • the configuratio of the recesses is such so as to allow the respective leading portion 30 of the tab 6 to be inserted therein.
  • recesses 28 have a configuration which is identical to the configuration of leading portions 30 of tabs 6. However, the configuration of recess 28 does not have to be identical to the configuration of the leading portions of the tabs.
  • Locking ears 32 are provided on sidewalls 20, proximate inner end 14. The locking ears cooperate with the tab 6 to maintain the tab in positive electrical connection with the receptacle terminal, as will be more fully described below.
  • the locking ears 32 comprise flanges which extend from the web 18 of receptacle portion 4. The flanges are reversely bent through an angle of 180 degrees as shown in Figure 4, so that their free end portions 34 extend normally toward the web.
  • the shape of locking ears 32 is essentially identical to the shape of sidewalls 20, when both sidewalls 20 and locking ears 32 are in an unstressed position, as shown in Figure 2.
  • slots 36 separate locking ears 32 from sidewalls 20, thereby allowing locking ears 32 and sidewalls 20 to move independently from each other.
  • Lead-in surfaces 38 are provided on locking ears 32 proximate free end portions 34. The lead-in surfaces 38 are provided adjacent slots 36 in order to prevent the tab 6 from stubbing against the locking ears 32 as the tab is inserted into the receptacle terminal 2.
  • tab 6 In use tab 6 must be positively mated with terminal 2 in order to provide the electrical characteristics required for proper operation. It is therefore important that the terminals be inserted onto the tabs in such a manner so as not to damage either the tabs or the terminals during insertion.
  • the insertion of terminal 2 onto tab 6 is essentially a two step process.
  • the first step consists of positioning a terminal 2 in alignment with a respective tab 6.
  • the terminal 2 is then partially inserted onto tab 6 , as is shown in Figures ' 1 and 2, such that the tab is received in the receiving channel of the terminal 2.
  • leading portion 30 of tab 6 engages surfaces 26 and web 30 of receptacle portion 4.
  • leading portion 30 causes surfaces 26 to move away from web 30. This movement is facilitated by the resilient nature of sidewalls 20.
  • the initial insertion is complete when leading portion 30 is inserted into receptacle portion 4 such that a first opening 40 of tab 6 is positioned in cooperation with tab engagement projections 24 of sidewalls 20.
  • each projection 24 of receptacle portion 4 extends into opening 40 of tab 6. Also, a surface of leading portion 30 is provided in recesses 28. Due to the resiliency of sidewalls 20, tab 6 is positively maintained in the preassembled position. In other words, the resiliency of sidewalls 20 causes projections 24 to move into opening 40, as the sidewalls are moving toward their unstressed position. This positioning of projections 24 in opening 40 provides a means of securing the tab in the preassembled position. The positioning of projections 24 in opening 40 also provides a positive stop means, thereby insuring that the tab will be properly positioned in the preassembled position.
  • the second step in the assembly process is moving the terminal 2 from the preassembled position to the fully assembled position.
  • the fully assembled position is shown in Figure 3. It should be noted that the first step and the second step in the insertion process need not be performed at the same time.
  • Terminals in accordance with the invention can be used as uninsulated terminals if desired.
  • the terminal is simply crimped onto the end of a wire and a tab is inserted into the receptacle portion.
  • an insulating housing can be provided in surrounding relationship to the terminal.
  • Terminal 50 is a terminal which is provided in electrical engagement with two tabs 6.
  • the configuration of the terminal 50 is identical to that of terminal 2, with the exception that the web portion 18 has different dimensions. The increased width of the web allows each sidewall to cooperate with a different tab. Consequently, the terminal 50 is placed in electrical engagement with two separate tabs. It should be noted, that the operation of the terminal 50 is the same as terminal 2.
  • the tabs 6 are connected to each other, by means of a carrier strip, as shown in Figure l.
  • this carrier strip can act as a bus bar to electrically interconnect the respective tabs 6 together.
  • a power terminal 50 which is connected to respective tabs 6 to distribute power through the bus bars to various other terminals 2.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Une borne (2) de prise de courant comporte une partie (18) en forme de bande ainsi que des parois latérales (20) résilientes s'étendant dans un sens à partir de ladite partie (18) en forme de bande. Les parois latérales (20) s'étendent intérieurement sur ladite bande (18) et comportent des parties de bordure (22) libres espacées de la bande (18) et engageant une languette (6) insérée dans la borne (2) de la prise de courant. Ladite borne (2) de la prise de courant présente des premiers moyens (24, 26, 28) d'engagement de borne coopérant avec une partie avant (30) et un orifice (40) de ladite languette (6), afin de positionner ladite borne (2) de prise de courant dans une position préassemblée lorsque ladite languette (6) est insérée dans la borne (2) de prise de courant. On a prévu des seconds moyens d'engagement (32) de borne sur ladite borne (2) de prise de courant à proximité de l'extrémité intérieure (14). Lesdits seconds moyens d'engagement (32) de borne coopèrent avec l'orifice (40) de ladite languette (6) pour positionner ladite borne (2) de prise de courant dans une position totalement assemblée, lorsque ladite languette (6) est insérée sur la borne (2) de prise de courant.
PCT/US1989/005591 1988-12-23 1989-12-14 Borne de prise de courant dotee d'un moyen de retention WO1990007805A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2502417A JP2801774B2 (ja) 1988-12-23 1989-12-14 固定手段を有するレセプタクル端子
DE90901949T DE68909223T2 (de) 1988-12-23 1989-12-14 Buchsenklemme mit rückhaltemittel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888830165A GB8830165D0 (en) 1988-12-23 1988-12-23 Receptacle terminal having retention means
GB8830165.0 1988-12-23

Publications (1)

Publication Number Publication Date
WO1990007805A1 true WO1990007805A1 (fr) 1990-07-12

Family

ID=10649115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1989/005591 WO1990007805A1 (fr) 1988-12-23 1989-12-14 Borne de prise de courant dotee d'un moyen de retention

Country Status (5)

Country Link
EP (1) EP0404924B1 (fr)
JP (1) JP2801774B2 (fr)
DE (1) DE68909223T2 (fr)
GB (1) GB8830165D0 (fr)
WO (1) WO1990007805A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602681A2 (fr) * 1992-12-18 1994-06-22 The Whitaker Corporation Borne de prise de courant dotée d'un moyen de rétention
DE19709772A1 (de) * 1997-03-10 1998-09-17 Whitaker Corp Flachsteckhülse und elektrischer Verbinder aus einer Flachsteckhülse und einem Flachstecker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2077177A5 (fr) * 1970-01-31 1971-10-15 Amp Inc
EP0001159A1 (fr) * 1977-09-09 1979-03-21 AMP INCORPORATED (a New Jersey corporation) Connecteur électrique
EP0050413A1 (fr) * 1980-09-17 1982-04-28 Utilux Pty Limited Douille électrique pour des fiches plates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534613A (en) * 1983-10-31 1985-08-13 Amp Incorporated Receptacle terminal having locking lance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2077177A5 (fr) * 1970-01-31 1971-10-15 Amp Inc
EP0001159A1 (fr) * 1977-09-09 1979-03-21 AMP INCORPORATED (a New Jersey corporation) Connecteur électrique
EP0050413A1 (fr) * 1980-09-17 1982-04-28 Utilux Pty Limited Douille électrique pour des fiches plates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602681A2 (fr) * 1992-12-18 1994-06-22 The Whitaker Corporation Borne de prise de courant dotée d'un moyen de rétention
EP0602681A3 (en) * 1992-12-18 1995-12-20 Whitaker Corp Receptacle terminal having retention means.
DE19709772A1 (de) * 1997-03-10 1998-09-17 Whitaker Corp Flachsteckhülse und elektrischer Verbinder aus einer Flachsteckhülse und einem Flachstecker

Also Published As

Publication number Publication date
JP2801774B2 (ja) 1998-09-21
GB8830165D0 (en) 1989-02-22
DE68909223D1 (de) 1993-10-21
EP0404924A1 (fr) 1991-01-02
EP0404924B1 (fr) 1993-09-15
JPH03502854A (ja) 1991-06-27
DE68909223T2 (de) 1994-04-07

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