EP3700019A1 - Buchse für elektrische verbindungen - Google Patents

Buchse für elektrische verbindungen Download PDF

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Publication number
EP3700019A1
EP3700019A1 EP20152790.0A EP20152790A EP3700019A1 EP 3700019 A1 EP3700019 A1 EP 3700019A1 EP 20152790 A EP20152790 A EP 20152790A EP 3700019 A1 EP3700019 A1 EP 3700019A1
Authority
EP
European Patent Office
Prior art keywords
box
terminal
cover
interspace
cantilevered
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.)
Withdrawn
Application number
EP20152790.0A
Other languages
English (en)
French (fr)
Inventor
Gianni Piovesan
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.)
Inarca SpA
Original Assignee
Inarca SpA
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 Inarca SpA filed Critical Inarca SpA
Publication of EP3700019A1 publication Critical patent/EP3700019A1/de
Withdrawn legal-status Critical Current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
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular 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
    • 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
    • H01R4/183—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 for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—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 for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion

Definitions

  • the present invention relates to a flat-coupling female electrical terminal which is adapted to couple, inside it, a laminar male terminal, which is connected to it in a stable manner.
  • Such connecting portion features a box-like body which comprises in turn, at least one cantilevered elastic contact tab, arranged inside the box-like body, or extending from the inner walls thereof.
  • This elastic tab is contoured to press against a contact of the male terminal, which is inserted into the box-like body of the connecting portion.
  • the concerned female terminals usually have one or more cantilevered elastic contact tabs.
  • the box-like body is generally made, together with the rest of the terminal, by folding a previously-stamped metal sheet.
  • Another drawback of conventional female terminals is the fact that even if the male terminal is correctly inserted into them, the cantilevered contact tabs may not be capable of exerting a contact pressure such as to ensure a stable and constant contact even under conditions of knocks, vibrations or other, similar critical situations.
  • the female terminal described in such document is provided with flexing limiting laminas which are adapted to prevent the excessive bending of the tabs in the event of incorrect insertion.
  • limiting laminas described in EPA 17171344.9 require a manufacturing procedure that is not easy and not rapid, as it is necessary to fold the flat elements into a U shape in order to generate the limiting laminas.
  • a quantity of sheet metal is employed that is not insignificant compared to the quantity of sheet metal used for the individual terminal.
  • the protrusion however, remains protruding with respect to the box-like body even after the insertion into the recess, and this results in a not insignificant bulk, the presence of a sharp portion that can cause injury to the assembly operator, and an unappealing visual impact produced by the asymmetry of the box-like body.
  • the terminal in EPA 17171344.9 specified that the electric cable exits in the direction of extension of the terminal itself. In some applications, however, it is necessary that the electric cable exits with an inclination of 90° with respect to the direction of extension of the terminal.
  • the aim of the present invention is to provide a female terminal for electrical connections which is capable of improving the known art in one or more of the above mentioned aspects.
  • an object of the invention is to provide a female terminal for electrical connections in which the bending of the contact tabs is prevented at lower cost and with simpler construction than in conventional female terminals.
  • Another object of the invention is to provide a female terminal for electrical connections that does not have protrusions and/or sharp portions that protrude from the box-like body and which has a box-like body with a pleasing visual impact.
  • a further object of the invention is to provide a female terminal for electrical connections in which the electric cable exits with an inclination of 90° with respect to the direction of extension of the terminal.
  • Another object of the present invention is to overcome the drawbacks of the known art in an alternative manner to any existing solutions.
  • Another object of the invention is to provide a female terminal for electrical connections that is highly reliable, easy to implement and of low cost.
  • a female terminal for electrical connections of the type comprising a crimping portion and a box-like connection body, said box-like connection body comprising:
  • a female terminal for electrical connections according to the invention is generally designated by the reference numeral 10.
  • the female terminal 10 comprises a crimping portion 11 and a box-like connection body 12.
  • the box-like body 12 comprises in turn:
  • the cover 16 comprises a frame 17 with at least one cantilevered elastic contact tab, which is contoured to protrude into the interspace 20 between the bottom 13 and the cover 16.
  • the interspace 20 is designed to contain a male contact, not shown in the figures.
  • the cantilevered tabs are two in number: 18 and 19.
  • the cover 16 has a first edge 40 which is fixed with fixing means 41 to a corresponding second edge 42, of the second lateral wall 15.
  • the first edge 40 is bent toward the inside of the box-like body 12 when the box-like body 12 is being closed.
  • One of the peculiarities of the invention consists in that the box-like body 12 is substantially symmetrical with respect to its median sagittal plane.
  • the median sagittal plane is the plane indicated with X in Figure 2 and in the present description it is the plane that runs in the fore-and-aft direction that divides the box-like body 12 into two parts of substantially equal mass.
  • the fixing means 41 are constituted by teeth which extend from the second free edge 42 and which are each adapted to be inserted in a corresponding seat of the first edge 40 of the cover 16.
  • the teeth are arranged in the region of intersection between the two edges 40, 42, in the configuration in which the box-like body 12 is closed.
  • the terminal 10 comprises a corresponding flexing limiting protrusion, 21 and 22 respectively, for each one of the cantilevered contact tabs 18 and 19.
  • the female terminal 10 comprises a front portion, which is the part where the male terminal is introduced into the box-like body 12, and a rear portion, which is the crimping portion 11.
  • the female terminal 10 has the two laterally adjacent cantilevered tabs 18 and 19 extending from a front segment 25 of the frame 17 of the cover 16.
  • the flexing limiting protrusions 21, 22 are each constituted by a flat element that extends from the rear segment 26 of the frame 17.
  • the free ends 27 and 28 of the protrusions 21, 22 lie above the free ends 23, 24 of the respective cantilevered tabs 18, 19 and prevent the latter from flexing outward excessively when the male terminal enters the body 12, by intercepting the displacement of the free ends 23, 24.
  • the bottom 13 of the body 12 has a central opening 30, within which a cantilevered bridge 31 extends which has an engagement ridge 32 which is adapted to engage with a corresponding hole in the male terminal, not shown in the figures.
  • the cantilevered contact tabs 18 and 19 are arc-shaped, with the concavity directed toward the outside of the box-like body 12.
  • these tabs In the central region these tabs have a longitudinal contact rib 33 and 34 respectively, which extends into the interspace 20.
  • Another peculiarity of the invention consists in that the terminal 10 can be used in situations in which the electric cable must exit with an inclination of 90° with respect to the direction of extension of the terminal.
  • the crimping portion 11 has a segment 50, with a substantially C-shaped profile, the core 51 of which is substantially coplanar with the bottom 13 of the box-like body 12, and the wings 52a, 52b of which extend substantially in a direction Y which is perpendicular to the direction Z of extension of the box-like body 12.
  • the segment 50 has an extension that is substantially smaller than the internal width of the box-like body 12, where the term "internal width" means the distance between the lateral walls 14 and 15.
  • Such segment 50 extends in a direction perpendicular to the direction of extension of the box-like body 12 and constitutes a seat for accommodating the electric cable exiting from such body 12.
  • the electric cable therefore has an inclination of 90° with respect to the direction of extension of the terminal.
  • the female terminal 10 is made in a single piece from stamped and folded metal sheet.
  • the female terminal according to the present invention can be used in applications where it is necessary that the electric cable exits from the terminal with an inclination of 90°.
  • a female terminal for electrical connections has been devised that does not have protrusions and/or sharp portions that protrude from the box-like body and which has a box-like body with a pleasing visual impact.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connection Or Junction Boxes (AREA)
EP20152790.0A 2019-02-20 2020-01-21 Buchse für elektrische verbindungen Withdrawn EP3700019A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000002437A IT201900002437A1 (it) 2019-02-20 2019-02-20 Terminale femmina perfezionato per connessioni elettriche

Publications (1)

Publication Number Publication Date
EP3700019A1 true EP3700019A1 (de) 2020-08-26

Family

ID=66589772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20152790.0A Withdrawn EP3700019A1 (de) 2019-02-20 2020-01-21 Buchse für elektrische verbindungen

Country Status (2)

Country Link
EP (1) EP3700019A1 (de)
IT (1) IT201900002437A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4932891A (en) * 1988-09-07 1990-06-12 C. A. Weidmuller Gmbh & Co. Dual flat-spring electrical contact
EP0697752A2 (de) * 1994-08-19 1996-02-21 The Whitaker Corporation Elektrische Anschlussbuchse
US6428365B1 (en) * 1999-06-17 2002-08-06 Yazaki Corporation Terminal
DE10237830A1 (de) * 2001-08-17 2003-05-08 Ludger Sorig Elektrischer Steckkontaktkörper
CN103746206A (zh) * 2013-12-31 2014-04-23 温州市珠城电气有限公司 旗形夹形自锁端子
EP3246999A1 (de) * 2016-05-20 2017-11-22 INARCA S.p.A. Buchse für elektrische verbindungen
US20180316112A1 (en) * 2017-04-26 2018-11-01 Sumitomo Wiring Systems, Ltd. Terminal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4932891A (en) * 1988-09-07 1990-06-12 C. A. Weidmuller Gmbh & Co. Dual flat-spring electrical contact
EP0697752A2 (de) * 1994-08-19 1996-02-21 The Whitaker Corporation Elektrische Anschlussbuchse
US6428365B1 (en) * 1999-06-17 2002-08-06 Yazaki Corporation Terminal
DE10237830A1 (de) * 2001-08-17 2003-05-08 Ludger Sorig Elektrischer Steckkontaktkörper
CN103746206A (zh) * 2013-12-31 2014-04-23 温州市珠城电气有限公司 旗形夹形自锁端子
EP3246999A1 (de) * 2016-05-20 2017-11-22 INARCA S.p.A. Buchse für elektrische verbindungen
US20180316112A1 (en) * 2017-04-26 2018-11-01 Sumitomo Wiring Systems, Ltd. Terminal

Also Published As

Publication number Publication date
IT201900002437A1 (it) 2020-08-20

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