EP0511111B1 - Connexion électrique et boîtier d'appareil électrique comportant une telle connexion - Google Patents

Connexion électrique et boîtier d'appareil électrique comportant une telle connexion Download PDF

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Publication number
EP0511111B1
EP0511111B1 EP92401172A EP92401172A EP0511111B1 EP 0511111 B1 EP0511111 B1 EP 0511111B1 EP 92401172 A EP92401172 A EP 92401172A EP 92401172 A EP92401172 A EP 92401172A EP 0511111 B1 EP0511111 B1 EP 0511111B1
Authority
EP
European Patent Office
Prior art keywords
cage
screw
wire
strip
clamping
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
EP92401172A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0511111A1 (fr
Inventor
Jean-Paul Heng
André Marmonier
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.)
ABB France SAS
Original Assignee
Entrelec SAS
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 Entrelec SAS filed Critical Entrelec SAS
Publication of EP0511111A1 publication Critical patent/EP0511111A1/fr
Application granted granted Critical
Publication of EP0511111B1 publication Critical patent/EP0511111B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/308—Conductive members located parallel to axis of screw

Definitions

  • the invention relates to electrical connections, of the screw type and to axial connection, and housings of electrical apparatus comprising at least one such connection.
  • French Patent 2,574,598 describes an electrical connection, in particular a miniature one, by means of which an electrically conductive wire is immobilized against a wire support wall of a conductive strip of an electrical appliance, such as for example a junction block, between this support wall and an internal wire support wall of a cage which surrounds the strip, under the action of a clamping screw which is screwed into the cage and which bears against the bar on the other side of the latter relative to the two wire support walls.
  • the clamping screw is arranged obliquely in the cage relative to the wire support wall of this cage and comes directly into pressure by its end on the bar, it is also laterally pressed against a lateral support element provided for this effect on the cage.
  • this box when the connection is housed in a box, for example of a connector, a terminal block or any other electrical device, this box generally includes a wire introduction opening for connection and an opening for 'access to the clamping screw which are separate.
  • connection mentioned above is more specifically intended for devices having housings where the introduction opening and the access opening for the same connection have respective oblique orientations, one with respect to the other, each opening opening for example onto a different face of the housing.
  • housings allowing an axial connection, that is to say where the introduction opening and the access opening relating to the same connection have parallel orientations, which allows them in particular lead in parallel on the same face of the housing.
  • this may be important, since under certain conditions of use, access to a housing may only be possible at one of these faces, in particular a front face.
  • the invention therefore provides an electrical connection which, derived from that in the French patent mentioned above, for connecting a conductive wire with a conductive bar of an electrical device by immobilizing the wire against a support element provided on the bar, between this element and another support element, forming the bottom and at least approximately parallel, of a cage which surrounds the bar and this under the action of a clamping screw screwed into a cage element , located opposite the support element forming the bottom, and pressing at the end against the support element of the bar on the other side thereof relative to the support element of the cage, this screw being arranged obliquely with respect to these bar and cage support elements, against at least one lateral support structure opposing the transverse reaction of repulsion of the end of the screw by the bar when tightening, in the cage, the support elements of the bar rette and that of the cage delimiting between them a wire insertion conduit obliquely oriented relative to the screw.
  • the support element of the cage is extended by an extension serving as a wire guide which projects out of the cage on one of the sides where the wire insertion conduit opens.
  • the invention also provides an electrical appliance box internally comprising at least one connection as defined above, in a body of insulating material inside which the bar, the screw and the cage are housed, the bar being therein. immobilized, while the cage is susceptible to guided displacements, oriented along the axis of the screw and occasioned by the maneuver of the latter, between two positions respectively corresponding one to maximum approximation of the wire support elements of the bar and the bottom of the cage and the other at a maximum distance from these elements.
  • the housing comprises an arrangement for immobilizing in translation for a clamping screw allowing the operation of a screw via the head of this screw through an access opening of the housing.
  • a wire introduction conduit having an orientation at least approximately parallel to the direction of cage movement defined by the screw axis opens, this introduction conduit being closed by the wire guide extension of the cage considered which penetrates there obliquely to the vicinity of a wall of this conduit with which it ensures relative continuity for guiding, in the insertion conduit of the cage, a wire pushed through said conduit d introduction since the opening of the latter.
  • Figure 1 shows an example of a screw cage for connection according to the invention.
  • FIG. 2 shows an example of a strip for connection according to the invention.
  • FIG. 3 shows a connection constituted using the screw cage and the bar according to FIGS. 1 and 2.
  • Figure 4 shows a section along IV-IV of an apparatus housing having connections as defined in connection with the previous figures.
  • FIG. 5 shows a partial section along V-V of a portion of the housing presented in FIG. 4.
  • the electrical connection comprises a cage 1 provided with a clamping screw 2 which are shown in FIG. 1 and a conductive bar 3, an embodiment of which is given in FIG. 2.
  • Cage 1 and bar 3 are intended to cooperate with each other to on the one hand immobilize one end of the conductive wire between them and on the other hand ensure the electrical connection of this conductive wire with an electrical appliance by the 'Intermediate of a connection member 4 capable of being carried by the bar as shown in Figures 2 to 5, or possibly by the cage, this connection member 4 being for example of clamp type, as shown here.
  • the cage 1 and the assembly formed by the bar 3 and by the connection member 4, are here assumed to be produced by cutting and folding from metal blanks according to techniques well known in the field, such a cage can also be obtained by other techniques and for example by molding.
  • the bar 3 proper is here assumed to consist of a strip, of resilient metal which is a good conductor, of rectangular shape, extending a common part uniting the two jaws of the clamp which here constitutes the connection member 4; this band of rectangular appearance comprises an element, called a support element, 5 against a wall from which it is intended to apply the conductive wire to be connected.
  • This support element 5 is here connected to the common part connecting the clamp jaws by an element, called a wire stop, 6 against which the end of a conductive wire to be connected should normally come up against.
  • This stop element 6 is here composed of two successive portions which are obliquely positioned by transverse folding each with respect to the other and with respect to the element which it extends, that is to say one with respect to the element d 'support 5 and the other relative to the connection member 4.
  • the support element 5 is also continued on the other side of the stop element by an element 7, called a wire guide, also here assumed to consist of two successive portions obliquely positioned by transverse folding one relative to the other and relative to the support element 5 that one of them extends.
  • a wire guide also here assumed to consist of two successive portions obliquely positioned by transverse folding one relative to the other and relative to the support element 5 that one of them extends.
  • a relief 8 is provided to serve as a support at the end of the screw 2, on the support element 5.
  • This relief 8 is here produced in the form of a tongue partially cut from the strip forming the bar and then folded.
  • the cage 1 is intended to surround the bar 3 at the level of the support element 5.
  • This cage 1 is produced by folding around a central element 9 intended to serve as an internal support at the bottom of the cage for the wire to be connected.
  • the support element 9 is provided arranged obliquely to the rest of the cage and at least approximately parallel to the support element 5 of the bar 3, when the connection which comprises them is assembled, so as to delimit a wire insertion conduit with this support element 5 and at possibly come to press against him under the action of screw 2.
  • the support element 9 is identically extended on two of its parallel edges by two strip elements 10 and 10 'folded in opposite directions so as to be perpendicular to it and parallel to each other, when the cage is made.
  • the support element 9 is also extended by an extension 11, called the wire guide, projecting out of the cage, here in the same plane as the element 9 itself, or possibly with a slightly different angulation.
  • the two strip elements 10, 10 ′ are interconnected by at least one and here two elements 13, 13 ′ which are perpendicularly folded towards each other and each with respect to the strip element 10 or 10 ′ from which it comes to form with the other a single connecting element, having a double thickness, where is provided a tapped bore for the screw 2.
  • the latter enters the cage by this tapped bore to come to bear against the relief 8 on the bar 3, it also bears against a support structure composed of two projections 14, 14 ′ each carried laterally by one of the elements of strip 10 or 10 ′ with respect to which it is perpendicularly folded down so as to serve as a lateral stop for the screw 2, the body of which is preferably made smooth at this level, ie here towards the conical end of support of this screw on the bar 3 .
  • the bar 3 is mounted in the cage 1 so that the support element 5 comes between the elements 10, 10 ′ parallel to the support element 9 with which it determines the wire insertion conduit .
  • the guide element 7 is positioned along the screw 2 on the side of the end of the wire insertion conduit where the wire guide extension 11 is located, the element wire stop 6 placed at the other end of the insertion duct which it closes, in the vicinity of the projections 14, 14 ′.
  • FIGS. 4 and 5 An example of use of an electrical connection according to the invention in an apparatus is shown in FIGS. 4 and 5, it relates to a connector comprising a double row of such connections in a housing made of insulating material, here produced in two nested parts 15A, 15B.
  • the two connections shown in Figure 4 each include a cage 1 or 1 ′, a screw 2 or 2 ′ and a bar 3 or 3 ′ housed in the housing 15A, 15B so that the screws 2 and 2 ′ are parallel and each the along one of the edges of the case.
  • Each bar is individually immobilized in the housing, for example after the part 15A is pressed onto the part 15B by virtue of the complementary shapes of these bars and of the housings of the housing where they are positioned, as is usual in the field.
  • Each cage encircles the corresponding bar as indicated above and is capable of moving relative to it in a translational movement along the axis of the corresponding tightening screw inside a rectilinear guide formed in the example proposed by the external wall of the housing, such as 16 - FIG. 4 -, which adjoins the associated screw, ie here 2, and by parallel guide walls, such as 17 and 18 - FIG. 5 -, which are perpendicular to this external wall in the housing and which separate the connections from each other.
  • Each screw is immobilized in translation on the one hand because of the support of its end against a relief provided for this purpose on the support element of each bar, such that the relief 8 on the support element 5 for the screw, and on the other hand due to the partial imprisonment of its head in an arrangement, such as 17 for the screw 2, and here molded in the part 15A of the housing.
  • each housing opens on the one hand by a conduit, such as 19, for the passage of the screw body towards the rectilinear guide where the associated cage moves.
  • a conduit such as 19, for the passage of the screw body towards the rectilinear guide where the associated cage moves.
  • an access opening which, such as 20, in an outer wall of the housing and here in part 15A, initially allows the insertion of a screw, then later its operation from the outside of this case.
  • the imprisonment of a screw head in an arrangement housing 17 is obtained for example by means of a peripheral bead, such as 21, formed at the edge of the opening 20.
  • a peripheral bead such as 21, formed at the edge of the opening 20.
  • the operation of a screw, such as 2 alternately allows the support walls 5 and 9 of the bar and the cage associated with this screw to be moved apart then brought closer between a position of maximum approximation and a position of maximum separation.
  • the introduction of a wire to be connected to a connection in the housing 15A, 15B, is carried out via an introduction conduit, such as 23 - Figure 4 -, which opens near the opening 20 for access to the screw assigned to this connection, this introduction conduit here being parallel to the direction of movement of the cage of this connection.
  • Each introduction conduit 23 is for example bordered on two sides by parallel walls such as 17 and 18 between which the associated cage moves and on a third side by a wall 24 integral with one of the constituent parts of the housing, here Part 15A.
  • a fourth wall of the introduction conduit is here formed by an element, such as 7, of bar which, projecting out of the wire insertion conduit formed between support walls 5 and 9 of bar and cage, is pressed against the screw and the cage portion where this screw is positioned.
  • the element 7 is obliquely folded towards the screw body, in the direction of the head of this screw, and it pushes the cage, on which it presses, against the wall 16 of the housing along which it slides and towards the support element 5 of the bar, when the distance between the support elements 5 and 9 of this bar and of the cage differs from their maximum distance, to preposition the cage in its housing before connecting a wire.
  • the introduction conduit associated with a connection communicates with the insertion conduit provided for this connection and it is closed by the extension 11 which comprises the corresponding wall 9 of cage support.
  • the inclination of the extension 11 directs the end of the conductor, then pushed, towards the inside of the insertion conduit and until it stops against the wire stop element, such as 6, which terminates this conduit. 'insertion.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Details Of Indoor Wiring (AREA)
EP92401172A 1991-04-26 1992-04-23 Connexion électrique et boîtier d'appareil électrique comportant une telle connexion Expired - Lifetime EP0511111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105191A FR2675954B1 (fr) 1991-04-26 1991-04-26 Connexion electrique et boitier d'appareil electrique comportant une telle connexion.
FR9105191 1991-04-26

Publications (2)

Publication Number Publication Date
EP0511111A1 EP0511111A1 (fr) 1992-10-28
EP0511111B1 true EP0511111B1 (fr) 1994-11-02

Family

ID=9412305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401172A Expired - Lifetime EP0511111B1 (fr) 1991-04-26 1992-04-23 Connexion électrique et boîtier d'appareil électrique comportant une telle connexion

Country Status (7)

Country Link
US (1) US5192234A (es)
EP (1) EP0511111B1 (es)
JP (1) JP3037819B2 (es)
CA (1) CA2067079C (es)
DE (1) DE69200607T2 (es)
ES (1) ES2065142T3 (es)
FR (1) FR2675954B1 (es)

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DE9112548U1 (de) * 1991-10-09 1991-12-19 RIA electronic Albert Metz, 7712 Blumberg Anschlußklemme
FR2708385B1 (fr) * 1993-07-28 1995-09-01 Entrelec Sa Bloc de jonction électrique.
DE4328928A1 (de) * 1993-08-27 1995-03-02 Contact Gmbh Kontakt- und Klemmvorrichtung für elektrische Steckverbinder
DE4401724C2 (de) * 1994-01-21 1996-09-12 Kopp Heinrich Ag Vorrichtung zur Frontverdrahtung von elektrischen Geräten, insbesondere von Reiheneinbaugeräten, Steckdosen, Schaltern
GB9408326D0 (en) * 1994-04-27 1994-06-15 Amp Great Britain Electrical connector for conductive leads
US5592989A (en) * 1994-04-28 1997-01-14 Landis & Gyr Powers, Inc. Electronic thermostat having high and low voltage control capability
DE9410614U1 (de) * 1994-07-01 1994-08-11 Weidmüller Interface GmbH & Co, 32760 Detmold Verbinder für elektrische Bus-Leiter
FR2737048B1 (fr) * 1995-07-18 1997-10-10 Lmi Composants Element de connexion a connexion axiale pour conducteur electrique
US5741073A (en) * 1995-09-18 1998-04-21 Kaye Instruments, Inc. Uniform temperature reference apparatus for use with modular terminal block
DE19545451A1 (de) * 1995-12-06 1997-06-12 Weidmueller Interface Ein- oder mehrreihige Leiterplattenklemme
US6048230A (en) * 1996-11-25 2000-04-11 Nec Corporation Contact and high-density connector using the same
DE29709112U1 (de) * 1997-05-23 1997-07-31 Siemens AG, 80333 München Rahmenklemme zum Anschluß elektrischer Leitungen
DE19826675A1 (de) * 1997-06-21 1999-03-04 Haindl Hans Beutel zur wenigstens teilweisen Umfassung eines Herzens
DE19813753B4 (de) * 1998-03-27 2005-03-24 Abb Patent Gmbh Kontaktklemme
DE20200973U1 (de) * 2002-01-24 2003-05-28 Weidmüller Interface GmbH & Co., 32760 Detmold Anschlußklemmenleiste
DE20218750U1 (de) 2002-12-04 2003-02-06 STOCKO Contact GmbH & Co. KG, 42327 Wuppertal Steckkontaktelement, Kontaktiereinheit und Stecker
GB2427314A (en) * 2005-06-15 2006-12-20 Stephen Martin Electrical connector which can be wired externally
US7249963B2 (en) * 2005-07-11 2007-07-31 Bals Elektrotechnik Gmbh & Co. Kg Screwless connection frame terminal
DE102006016354A1 (de) * 2006-04-05 2007-10-18 Mc Technology Gmbh Klemmenblock zum Anschließen von elektrischen Leitern
DE102007009448B4 (de) * 2007-02-23 2009-02-26 Phoenix Contact Gmbh & Co. Kg Elektrisch leitendes Steckkontaktelement
DE202007009351U1 (de) * 2007-07-04 2007-09-06 Lapp Engineering & Co. Steckverbinder mit Schraubanschluss
US20110294363A1 (en) * 2007-10-31 2011-12-01 Anytek Technology Corporation, Ltd. Terminal table fastener
DE102007057082A1 (de) * 2007-11-21 2009-05-28 Newfrey Llc, Newark Kontaktiereinheit, Befestigungsverfahren und Schraubwerkzeug zur Durchführung des Verfahrens
DE102007058730B4 (de) * 2007-12-06 2010-06-24 Phoenix Contact Gmbh & Co. Kg Adapter mit einem Kontaktteil, elektrische Verbindungsklemme oder elektrisches Gerät und Verwendung des Adapters
US7946895B2 (en) * 2008-04-21 2011-05-24 Newfrey Llc Internally threaded nut with a collar held captive in a nut holding section
DE102008020511A1 (de) * 2008-04-23 2009-11-05 Mc Technology Gmbh Kontaktelement für eine Anschlussklemme, Anschlussklemme und Steckbrücke für ein Kontaktelement
US7909633B1 (en) * 2009-09-15 2011-03-22 Fisher-Rosemount Systems, Inc. Wire connection apparatus
CN202076511U (zh) * 2010-11-01 2011-12-14 洛克威尔自动控制技术股份有限公司 接线端组件
CN203839613U (zh) * 2014-05-26 2014-09-17 泰科电子(上海)有限公司 电连接器
US9419352B2 (en) * 2014-07-23 2016-08-16 GE Lighting Solutions, LLC Terminal block with ground strap, spring force terminals, and screw lug terminal
CN106329174B (zh) * 2015-06-18 2024-05-10 连展科技电子（昆山）有限公司 壁挂架组件及其夹线型连接器
CN106654631A (zh) * 2017-02-22 2017-05-10 云南电网有限责任公司带电作业分公司 一种缘操作杆法带电作业用压接型10kV耐张线夹
EP4117119A1 (en) * 2021-07-08 2023-01-11 Sacopa, S.A.U. Electrical connector

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Also Published As

Publication number Publication date
JPH07192780A (ja) 1995-07-28
CA2067079C (fr) 2002-07-09
DE69200607D1 (de) 1994-12-08
JP3037819B2 (ja) 2000-05-08
EP0511111A1 (fr) 1992-10-28
FR2675954A1 (fr) 1992-10-30
DE69200607T2 (de) 1995-03-09
ES2065142T3 (es) 1995-02-01
FR2675954B1 (fr) 1993-07-02
US5192234A (en) 1993-03-09
CA2067079A1 (fr) 1992-10-27

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