EP2079133A1 - Verbindungsklemme mit einem Steckelement zur Aufnahme eines elektrischen Steckerstifts, Steckdose, die eine solche Klemme umfasst, und Herstellungsverfahren einer solchen Klemme - Google Patents

Verbindungsklemme mit einem Steckelement zur Aufnahme eines elektrischen Steckerstifts, Steckdose, die eine solche Klemme umfasst, und Herstellungsverfahren einer solchen Klemme Download PDF

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Publication number
EP2079133A1
EP2079133A1 EP08291170A EP08291170A EP2079133A1 EP 2079133 A1 EP2079133 A1 EP 2079133A1 EP 08291170 A EP08291170 A EP 08291170A EP 08291170 A EP08291170 A EP 08291170A EP 2079133 A1 EP2079133 A1 EP 2079133A1
Authority
EP
European Patent Office
Prior art keywords
terminal
tabs
tongues
metal strip
socket
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.)
Granted
Application number
EP08291170A
Other languages
English (en)
French (fr)
Other versions
EP2079133B1 (de
Inventor
Thierry Champagne
Jacques Fauriot
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.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
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 Legrand SNC, Legrand France SA filed Critical Legrand SNC
Publication of EP2079133A1 publication Critical patent/EP2079133A1/de
Application granted granted Critical
Publication of EP2079133B1 publication Critical patent/EP2079133B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole

Definitions

  • the invention finds a particularly advantageous application in the production of a socket comprising a base for receiving such a terminal, closed at the front by a hubcap defining a receiving well of a plug whose bottom is provided with two electric plug pin holes.
  • Document is also known FR 2,538,174 an electrical connection terminal for connecting an electrical cable to a "pigtail” type connector.
  • This terminal is derived from a metal strip wound on itself to define a chimney insertion of the "pigtail” and the electric cable.
  • One end of this terminal has four connecting tabs folded inside the chimney to make electrical contact with the "pigtail”.
  • the cutting and folding of the terminals and their tongues require complex tools, in particular to perform the folding along separate fold lines and inclined relative to each other so as to obtain the complex forms of chimney.
  • the present invention proposes a modular electrical connection terminal and particularly simple architecture since it is in the form of a flat bar.
  • connection terminal according to claim 1.
  • the four tabs together form a clamp adapted to receive an electrical plug pin and hold it laterally effectively.
  • connection terminal is therefore inexpensive.
  • the realization of the terminal according to the invention allows a metal material gain of about 40% compared to the material used to make a terminal according to the state of the art mentioned in the introduction.
  • this terminal Furthermore, thanks to the simplicity of this terminal, the cutting and folding of the raw strip can be made simultaneously with a simple punching tool. The production rates of this terminal can be increased.
  • the tongues of the first pair are also, due to their long lengths, particularly advantageous. Electrical plugs having a base and two pins of small sections which extend from the base and which are covered, over part of their length, with a electrical insulation sleeve. Thanks to the invention, the tabs of the first pair are long enough to come into electrical contact with the pins, beyond the electrical insulation sleeves.
  • the terminal can withstand a large number of insertion maneuvers and extraction of pins, more than 5000 maneuvers.
  • the invention also relates to a socket according to claims 6 and 7.
  • the base comprises two receiving housings of said pins, each receiving housing extending in the axis of one of said cells and having an end opening facing this cell.
  • FIG. 1 schematically shown three terminals 10, 20, 20 'of electrical connection ready to be incorporated in a socket (not shown), including a phase terminal 20 and a neutral terminal 20' according to the invention, as well as a ground terminal 10.
  • This socket not shown has a base of insulating material, closed at the front by a hubcap which has a recess well receiving a plug.
  • the insertion well of the socket is delimited by a cylindrical side wall and a bottom wall. This bottom wall is pierced with two holes for the passage of two pins of an electrical plug (not shown) and a through hole of a ground pin (not shown) connected to the earth terminal 10 placed in the base of the socket.
  • the ground pin emerges through the hole in the bottom of the hubcap in the receiving well of the socket.
  • the base of the socket has inner compartments insulated from each other and intended to each receive one of the three terminals 10, 20, 20 'of electrical connection.
  • the base is also adapted to be housed in a box to be embedded in any wall or in a projecting housing projecting on such a wall.
  • the base provided with its hubcap is mounted on a device support (not shown) in the form of a frame, attached to the front face of a mounting box housed in a hole practiced in the wall.
  • the equipment support is covered by a finishing plate, also in the form of a frame, which is supported on the recess wall by closing the front opening of the recess box and flanking the hubcap of the socket current.
  • phase and neutral terminals 20 ' are each in the form of a metal strip 21, 21'.
  • each terminal 20, 20' has an opening 22, 22 'inside which four tongues 23, 23', 24, 24 'extend in a cross shape. These tabs are distinct from each other. They are folded on the side of the same face of the metal strip 21, 21 'to delimit between them a cell 25, 25' for receiving a pin of an electrical plug.
  • metal strip means a strip of metal material which has undergone a folding operation and / or a cutting operation. Such a metal strip is also known as a "flat strip”.
  • the metal strip 21, 21 ' is in the form of a substantially flat bar made of copper material (for example brass) of small thickness, between 0.3 and 0.6 millimeters, with a rear face 27, 27' intended to be turned towards the bottom of the base of the socket and a front face 28, 28 'opposite.
  • This metal strip 21, 21 ' has an outer peripheral edge 26, 26' of elongated shape and an inner peripheral edge which defines said opening 22, 22 'of generally square shape.
  • This opening 22, 22 ' is located in the center of a portion of greater width of the metal strip 21, 21'.
  • the cell 25, 25 'delimited by the tongues 23, 23', 24, 24 ' has an axis A1, A1' which passes through the center of the opening 22, 22 '.
  • the four tabs 23, 23 ', 24, 24' extend from the four corners of the inner peripheral edge delimiting the opening 22, 22 '. They are cut in the metal strip 21, 21 'so that they form with it a single piece.
  • each tab 23, 24 has an end free edge 23A, 24A and two parallel slices. Their widths are identical, of the order of 2 millimeters, so that they are elastically deformable.
  • each tongue 23, 23 ', 24, 24' being folded towards the rear face 27, 27 'of the metal strip 21, 21', their free end edges 23A, 24A are not situated in the plane of the opening 22, 22 ', but rather away from the plane of this opening, the side of the rear face 27, 27' of the metal strip 21, 21 '.
  • the folded portion of each tongue 23, 23 ', 24, 24' is inclined relative to the axis A1, A1 'by an angle of between 1 and 30 degrees, here substantially equal to 10 degrees.
  • the four tabs 23, 23 ', 24, 24' are thus bent towards the rear face 27, 27 'of the metal strip 21, 21'.
  • said four tongues 23, 23 ', 24, 24' extend opposite one another in pairs of same lengths.
  • the tabs 23, 23' of a first pair have a first length I 1 while the tongues 24, 24 'of a second pair have a second length I 2 strictly smaller than said first length I 1 (see figure 3 ).
  • These lengths I 1 and I 2 are such that the folded portions of the tabs 23, 23 'of the first pair each have a minimum distance to the axis A1, A1' of the cell 25, 25 'less than 2 millimeters while the folded portions of the tabs 24, 24 'of the second pair each have a minimum distance to the main axis A1, A1' of the cell 25, 25 'between 2 and 2.4 millimeters.
  • the cell 25 is adapted to accommodate pins of two different diameters. It is here more particularly adapted to accommodate the two types of pins 50, 51 used in France and Belgium, namely pins 50 of 4 millimeters in diameter and pins 51 of 4.8 millimeters in diameter.
  • the length I 1 is such that the tabs 23 of the first pair can come into contact with the pin beyond the electrical insulation sleeve, in order to establish an electrical contact between the terminal 20 and the pin.
  • the electrical contact between the terminal 20 and the pin 50 allows the passage of standard currents from 2.5 to 10 amperes.
  • the diameter of the pin 51 engaged in the cell 25 is large (4.8 millimeters)
  • the folded parts of all the tongues 23, 24 bear against this pin 51, so as to hold it rigidly. in terminal 20 (see figure 6 ).
  • the electrical contact between the terminal 20 and the pin 51 allows the passage of large currents of about 20 amperes.
  • the free end edges of the tabs 23, 23 'of the first pair are bevelled, so that they are inclined relative to the longitudinal axis of these tongues, preferably between 20 and 60 degrees.
  • the amplitude of elastic deformation of these tongues 23, 23' is particularly large, compared with that of the tabs 24, 24 'of the second couple.
  • the bevelling of the tongues 23, 23 'thus makes them more easily deformable, so that the force exerted on the electrical plug to engage its pins in the terminals 20, 20' is reduced.
  • the terminal 20, 20 'further comprises fixing means to the base of the socket.
  • these attachment means comprise, on either side of the central part of greater width of the metal strip 21, 21 ', a tab adapted to be inserted into a housing provided for this purpose in the corresponding insulated compartment of the base of the socket.
  • the base of the socket has internally an element 60 provided with two receiving housings 61 of the two pins of the electrical plug, which extend in the axis of the cells 25 of the two terminals 20 (and 20 ') and which open out opposite these cells 25.
  • the element 60 comes from formation with the bottom wall of the base.
  • Its reception housings 61 are cylindrical holes of revolution about the axes A1 of the cells 25, of equal diameter, with the clearance, the diameter of the larger diameter pins that the socket is adapted to accommodate (here 4.8 millimeters).
  • These two receiving housings 61 guide the two pins of the electrical plug when the engagement of this plug in the insertion well of the hubcap of the socket.
  • a land terminal 10 comprising a metal strip 11 generally rectangular, provided with a receiving opening 12 of the earth pin and a window 14 to engage a centering pin (not shown) provided in the bottom of the base of the socket .
  • the ground pin is more particularly adapted to be engaged and then crimped into the opening 12.
  • the earth terminal 10 also comprises means for fixing the base.
  • these fastening means here also include tabs adapted to be inserted in housings provided for this purpose in the corresponding compartment of the base of the socket, in this case the central compartment of the base.
  • the metal strips 11, 21, 21 'of the three terminals of the socket are derived from a rectangular raw sheet 1 of reduced dimensions.
  • This raw strip 1 here has a width less than 35 millimeters, here equal to 32 millimeters, and a length less than 40 millimeters, here equal to 36 millimeters.
  • the phase and neutral terminals 20 ' have symmetrical geometries with respect to each other by mirror effect. They are also engaged in the base of the socket symmetrically with respect to the plane of symmetry of the metal strip 11 of the earth terminal 10.
  • the tabs 23 of great lengths of the phase terminal 20 have an orientation about the axis A1 different from the orientation of the tabs 23 'of the neutral terminal 20'.
  • the tabs of the two terminals 20 are oriented with an offset of 90 degrees.
  • the manufacturing process of these three terminals 10, 20, 20 ' has two main steps. It comprises a first step of cutting flat in the raw strip 1 of the three metal strips 11, 21, 21 '.
  • This step makes it possible to cut, on the one hand, the three metal strips 11, 21, 21 'to extract them from the raw strip 1, and, on the other hand, the peripheral edges of the openings 22, 22' to define the cells 25 , 25 '.
  • Each metal strip 11, 21, 21 ' is then cut along a given contour corresponding to its outer peripheral edge 26.
  • peripheral edges of the openings 22, 22 'of the metal strips 21, 21' are in turn cut in such a way that their contours remain delimited within the contour of the metal strip 21, 21 'and that they define the said four tongues 23 , 23 ', 24, 24'.
  • the four tabs 23, 23 ', 24, 24' of each terminal 20, 20 ' are made in the initial material of the opening 22 to release the latter, with minimal material removal ( corresponding to the cutting game of the tool) between the tabs 23, 23 'of the first pair. They are further cut with a minimal removal of material between, on the one hand, the tabs 24, 24 ', and, on the other hand, the slices of the tabs 23, 23'.
  • the tabs 23, 23 'of the first pair can, while they come from the initial material of the opening 22, 22', have long lengths, which allows them to to make electrical contact with the pins equipped with electrical insulation sleeves.
  • the manufacturing method also comprises a folding step (also called a forming step) of the metal strips 11, 21, 21 '.
  • the metal strips 11, 21, 21 'of the three terminals 10, 20, 20' are stamped so that they each have two end portions flanking a central portion which is provided with one of said openings 14, 22, 22 'and extending recess relative to these two end portions.
  • the metal strips are not stamped and they extend in a plane.
  • the four tabs 23, 23 ', 24, 24' of each opening 22, 22 '(cut in the raw strip 1) are folded in elbow to form protrusions rising on the same face 27, 27 'of the metal strip 21, 21' and delimiting between them said cell 25, 25 '( figure 4 ).
  • the folding tool of these tabs advantageously has a conical shape, so that the end edges of the tongues are all circumscribed to the same cone.
  • these two steps of cutting and folding are performed simultaneously.
  • the particularly simple architecture of the three terminals 10, 20, 20 ' is such that it is possible, with the aid of a single punching tool, to cut and fold the raw strip 1.
  • each electrical connection terminal it will be possible to arrange the four tabs of each electrical connection terminal such that they are adapted to receive an electrical pin of different section and a different standard, for example British ("British standard”) , American, etc ...
  • a different standard for example British (“British standard") , American, etc ...

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP20080291170 2008-01-09 2008-12-11 Verbindungsklemme mit einem Steckelement zur Aufnahme eines elektrischen Steckerstifts, Steckdose, die eine solche Klemme umfasst, und Herstellungsverfahren einer solchen Klemme Expired - Fee Related EP2079133B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0800117A FR2926167A1 (fr) 2008-01-09 2008-01-09 Borne de connexion pourvue d'une alveole de reception d'une broche de fiche electrique, prise de courant comportant une telle borne et procede de fabrication d'une telle borne.

Publications (2)

Publication Number Publication Date
EP2079133A1 true EP2079133A1 (de) 2009-07-15
EP2079133B1 EP2079133B1 (de) 2010-07-28

Family

ID=39832033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080291170 Expired - Fee Related EP2079133B1 (de) 2008-01-09 2008-12-11 Verbindungsklemme mit einem Steckelement zur Aufnahme eines elektrischen Steckerstifts, Steckdose, die eine solche Klemme umfasst, und Herstellungsverfahren einer solchen Klemme

Country Status (4)

Country Link
EP (1) EP2079133B1 (de)
CN (1) CN101483288B (de)
FR (1) FR2926167A1 (de)
RU (1) RU2479081C2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012201217A1 (de) * 2012-01-27 2013-08-01 Bühler Motor GmbH Stellantrieb
WO2017068123A1 (en) * 2015-10-22 2017-04-27 Te Connectivity Germany Gmbh Contact assembly for a contactor and electrical assembly with a contactor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110416786B (zh) * 2019-07-29 2020-10-30 江苏雷利电机股份有限公司 导电端子、包括其的联接器和电机以及联接器的装配方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825884A (en) * 1973-01-22 1974-07-23 Rapid Sa Electrical connection clip
FR2538174A1 (fr) 1982-12-16 1984-06-22 Electricfil Embout connecteur pour cable electrique
DE19735409A1 (de) * 1997-08-14 1999-03-04 Kathrein Werke Kg Leiterplatine sowie zugehöriges Kontaktelement
US6033245A (en) * 1997-12-05 2000-03-07 Simplex Time Recorder Co. Self-aligning electrical connector
DE19950757A1 (de) * 1999-10-21 2001-04-26 Bosch Gmbh Robert Vorrichtung zur elektrischen und mechanischen Verbindung von zwei Leiterplatten
EP1450439A2 (de) * 2003-02-18 2004-08-25 Tyco Electronics AMP GmbH Planare Kontaktstruktur mit Kontaktzungen für eine variable Steckposition

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1642539A1 (ru) * 1989-04-11 1991-04-15 Предприятие П/Я А-7672 Контактное устройство

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825884A (en) * 1973-01-22 1974-07-23 Rapid Sa Electrical connection clip
FR2538174A1 (fr) 1982-12-16 1984-06-22 Electricfil Embout connecteur pour cable electrique
DE19735409A1 (de) * 1997-08-14 1999-03-04 Kathrein Werke Kg Leiterplatine sowie zugehöriges Kontaktelement
US6033245A (en) * 1997-12-05 2000-03-07 Simplex Time Recorder Co. Self-aligning electrical connector
DE19950757A1 (de) * 1999-10-21 2001-04-26 Bosch Gmbh Robert Vorrichtung zur elektrischen und mechanischen Verbindung von zwei Leiterplatten
EP1450439A2 (de) * 2003-02-18 2004-08-25 Tyco Electronics AMP GmbH Planare Kontaktstruktur mit Kontaktzungen für eine variable Steckposition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012201217A1 (de) * 2012-01-27 2013-08-01 Bühler Motor GmbH Stellantrieb
DE102012201217B4 (de) 2012-01-27 2021-09-30 Bühler Motor GmbH Stellantrieb
WO2017068123A1 (en) * 2015-10-22 2017-04-27 Te Connectivity Germany Gmbh Contact assembly for a contactor and electrical assembly with a contactor
DE102015220704B4 (de) 2015-10-22 2022-07-28 Te Connectivity Germany Gmbh Kontaktanordnung für ein Schütz und elektrische Anordnung mit einem Schütz

Also Published As

Publication number Publication date
RU2479081C2 (ru) 2013-04-10
FR2926167A1 (fr) 2009-07-10
CN101483288B (zh) 2011-04-27
RU2008151969A (ru) 2010-07-10
EP2079133B1 (de) 2010-07-28
CN101483288A (zh) 2009-07-15

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