EP0555157A1 - Anschlussvorrichtung für einen Niederspannungsschalter mit Kunststoffgehäuse - Google Patents

Anschlussvorrichtung für einen Niederspannungsschalter mit Kunststoffgehäuse Download PDF

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Publication number
EP0555157A1
EP0555157A1 EP93420025A EP93420025A EP0555157A1 EP 0555157 A1 EP0555157 A1 EP 0555157A1 EP 93420025 A EP93420025 A EP 93420025A EP 93420025 A EP93420025 A EP 93420025A EP 0555157 A1 EP0555157 A1 EP 0555157A1
Authority
EP
European Patent Office
Prior art keywords
terminal
cavity
insulating support
connection
support
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
EP93420025A
Other languages
English (en)
French (fr)
Other versions
EP0555157B1 (de
Inventor
Alain Pouteil-Noble
Philippe Perrier
Jean-Pierre Nebon
Jean-Pierre Nereau
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.)
Schneider Electric SE
Original Assignee
Merlin Gerin SA
Schneider Electric SE
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
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Application filed by Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0555157A1 publication Critical patent/EP0555157A1/de
Application granted granted Critical
Publication of EP0555157B1 publication Critical patent/EP0555157B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques

Definitions

  • the invention relates to a device for connecting to an end range of an electrical appliance with a molded case, in particular of a low voltage circuit breaker, said case having on one of its side faces juxtaposed cavities for housing parts of connection, each cavity being associated with a perforated pad disposed inside this cavity with clearance to allow the selective installation of a connection terminal surrounding the pad, of a nut for fixing a terminal or a connection bar and a rear connection bar.
  • a device of the kind mentioned allows connection to the terminal area of the circuit breaker of a cable by means of a terminal engaged on the terminal area. It is also possible to connect a bar or a cable lug with a bolt crossing the perforated terminal area or to equip this area with a connection strip from the rear.
  • the adaptation of the circuit breaker to the type of conductor connected requires the installation of a terminal or a nut on the terminal range and this installation is generally carried out in the workshop and in any case before mounting the circuit breaker.
  • the terminal is often fixed to the terminal shelf or to the housing by a screw and this installation therefore requires a tool and a significant assembly time. It is interesting to be able to personalize the device at the last moment, that is to say during assembly or possibly after assembly in the box, by choosing the connection parts suitable for the type of conductor and by mounting them on the pads without the using a tool and by unqualified personnel.
  • connection terminals that can be threaded into a housing of the molded housing, the latter being closed, to associate them with the terminal pads.
  • connection device is characterized in that each cavity is open on the side of said side face for insertion because on the side of the connection pieces, without opening the housing, that said pieces comprise a metal piece attached to the track, a clamping means and an insulating plastic support for holding said metal part in the inserted position in the cavity, and that said insulating support has a pair of elongated grooves extending in the direction of insertion on each of the lateral faces of the support and cooperating with conjugate ribs formed on the lateral faces of the cavity.
  • the open cavities on the side face of the circuit breaker facilitate access to the terminal areas and the installation of the connection pieces on these areas.
  • the metallic connection piece is carried and guided by the insulating plastic support which alone cooperates with the molded housing to position the connection pieces in the cavities. During connection, this metal part is secured to the track, which is itself metallic by the clamping screw without exerting stress on the molded case.
  • a cage terminal is inserted into the cavity so as to introduce the terminal area inside this cage, near the bottom of the terminal.
  • This bottom has on its internal face opposite the beach, a projection capable of fitting into the orifice formed in the beach, and thus immobilizing the terminal in the direction of insertion. Maintaining the bollard in this nested position on the shelf is obtained by inserting an insulating support in the cavity, this support being guided by slides, to wedge under the bottom of the bollard and thus avoid any displacement towards the exit from the projection of the beach opening.
  • These guide rails of the insulating support are constituted by a pair of grooves made on the lateral faces of the insulating support, which longitudinal grooves cooperate with conjugated ribs, formed on the walls of the cavity of the molded case.
  • the insulating support is immobilized at the end of the insertion stroke by a latching system, for example constituted by a boss formed on one face of the groove which snaps into a cell in the rib. Any other snap-on system is of course usable and according to an important development of the invention, the insulating support is arranged in a cage, of shape combined with that of the terminal to slip on the latter and constitute an insulating screen.
  • the clamping screw which may be loose, is housed in a notch extending the cavity towards the front face of the molded case. This notch allows the passage of the screw tightening tool from the front face of the housing, and allows the installation and removal of the terminal with a partially or fully loose screw.
  • connection of a terminal or a bar to the terminal shelf involves the insertion of a nut at the rear of the shelf.
  • the tightening screw which crosses the terminal and the range by suitable holes, and which cause the tightening of the terminal on this range.
  • the nut of polygonal shape in particular rectangular, is placed in a housing of an insulating support, similar in shape to that of the aforementioned insulating support, allowing insertion into the cavity, being guided by the ribs formed on the internal walls of the cavity.
  • This insulating support is arranged to bring the nut behind the contact pad where it is held by this insulating support which snaps into the cavity.
  • the nut is of course secured to the terminal area without exerting direct stress on the molded housing. It is advantageous to equip the insulating support with two side plates flanking the clamping screw in the mounted position, to form additional insulation screens.
  • connection strip from the rear to the terminal area is carried out in a similar manner using an insulating support having a sleeve extending perpendicular to the direction of insertion of the insulating support.
  • the bar is inserted into its sleeve, and the bar / insulating support assembly is inserted into the cavity while being guided, as described above, by the slides formed in the cavity.
  • the end face of the bar is opposite the perforated area at the rear of the latter, and it suffices to screw the clamping screw to secure this bar to the area.
  • the insulation can be perfect by extending the sleeve beyond the terminal range, so as to wrap the clamping screw.
  • a cover for example constituted by a piece snapped onto the insulating support and carrying an articulated cover closing this end of the sleeve in the folded position and releasing this opening for the installation of the screw in the raised position.
  • a breaking device in this case a low-voltage quadrupole circuit breaker, comprises a molded housing 10, having a front face 11 crossed by a control handle 12, and a rear face 13 for fixing on a plate or any other suitable support.
  • a base 16 and a cover 17 are arranged side by side of the connections 18, respectively of input and output of the circuit breaker.
  • Each pole of the circuit breaker has two connections 18 connected by a conductor 19 into which is inserted a pair of contacts 20, the opening of which is controlled either manually by the lever 12, or automatically by triggers (not shown), during a overload or fault.
  • Such molded case circuit breakers for example described in French Patent No. 2,583,570, are well known and they can of course be of the three-pole or unipolar type.
  • the connections 18 are all identical, and only one of them is described in detail below.
  • the conductor 19 ends with an end strip 21 opening onto the lateral face 14 of the housing 10.
  • the strip 21, substantially parallel to the front 11 and rear 13 faces, is arranged in a cavity 22, of generally rectangular shape, formed on the side of the side face 14.
  • the cavity 22 has two side faces 23 which playfully frame the track 21, a front face 24 provided with a notch 25 opening out on the side of the front face 11 of the housing 10, and a bottom 26 open towards the posterior part but delimited by two lateral ribs 27.
  • the area 21 spaced from the lateral faces 23 is arranged in the vicinity of the bottom 26, leaving a space between the ribs 27 and this area 21.
  • the area 21 is perforated in its center by a orifice 28 and it can receive different connection devices, schematically illustrated in FIG. 1 and described in detail below.
  • FIGS 3 to 5 show a terminal connection device fitted to the first pole of the circuit breaker of Figure 1, the other poles being of course equipped in the same way.
  • the terminal 29 of a standard type with cage for the connection of a cable has a bottom 30, and on the opposite side a clamping screw 31. On the internal face of the bottom 30, is applied swung a projection 32 capable of fitting into the orifice 28 of the pad 21. It can be seen that the terminal 29 can be inserted into the cavity 22, making the pad 21 penetrate the terminal 29 and the screw 31 into the anterior notch 25. A perpendicular displacement towards the front applies the bottom 30 of the terminal 29 against the pad 21 and causes the projection 32 to penetrate the orifice 28 to immobilize the terminal 29 in the longitudinal direction of insertion.
  • the terminal 29 in this position inserted into the cavity 22 is produced by an insulating support 33 shown in FIG. 4, the base 34 of which comprises a pair of grooves 35 conjugated with the ribs 27 of the cavity 22.
  • the insulating support 33 is arranged in form of cage 36 capable of fitting onto terminal 29, constituting an insulation sheath.
  • the bottom 37 of this insulating cage 36 is arranged in a plate forming a wedge coming when the insulating support 33 is inserted into the cavity 22, to slide under the bottom 30 of the terminal 29.
  • the grooves 35 and ribs 27 constitute slides guiding the movement of the insulating support 33, which has a boss 38 formed on one of the faces of the groove 35 which comes into the insertion position of the support 33 snap into a conjugate socket 39 to keep the support in the inserted position insulator 33.
  • the insulating support 33 prevents any displacement of the terminal 29 downwards in this figure and thus keeps the projection 32 fitted into the orifice 28.
  • the terminal 29 is ready to receive the cable which is fixed in the usual manner by tightening the screw 31, rigidly securing the terminal 29 to the track 21.
  • the installation of the terminal 29 and its insulating support 33 requires no tools and can be carried out, the housing molded being mounted on the plate or fixed in any suitable manner.
  • the terminal can be removed in reverse by removing the insulating support 33 and disengaging the terminal 29 by moving the projection 32 out of the orifice 28, and removing the terminal from the cavity 22.
  • FIGs 6 to 8 illustrate a device for connecting a terminal 40 or a perforated bar, of the type shown on poles 3 and 4 of Figure 1.
  • This connection device consists of a nut 41 of general shape rectangular and an insulating support 42 having at its base grooves 35 capable of cooperating with the ribs 27 of the cavity 22.
  • the insulating support 42 has a base 43 for housing the nut 41, which can be placed on this base 43 or preferably inserted into a slide system 44 to secure the nut 41 and the insulating support 42.
  • the nut 41 / insulating support 42 assembly can be inserted into the cavity 22, being guided by the slides formed by the grooves 35 and the ribs 27 for bringing the nut 41 under the perforated area 21 as illustrated in FIG. 6.
  • connection device 41 In the snap-in position of the insulating support 42, the orifice 45 of the nut 41 is aligned with the orifice 28 of range 21, e t the connection is made by placing the terminal 40 on the plate 21, and by screwing the assembly by the screw 46 which successively crosses the terminal 40, the plate 21 and the nut 41.
  • the installation of the connection device is particularly simple and the tightened screw 46 secures the nut 41 to the plate 21 without exerting any stress on the housing 10.
  • the replacement of this nut connection device 41 by another type of connection is effected by a simple removal of the support 42 with nut 41, without requiring special tools.
  • FIG. 1 On the third pole of Figure 1, and in Figure 7, there is shown an insulating support 42 provided with two lateral flanges 47 coming to frame in the inserted position, the track 21 and the screw 46 to improve the electrical insulation.
  • the fourth pole of Figure 1 is equipped with a simplified support 42 without flanges 47 of insulation.
  • FIGS 9 to 12 and pole 2 of Figure 1 show the third variant of the connection device allowing a departure from the rear.
  • This connection device consists of a bar 48 and an insulating support 51.
  • the bar 48 having a square section is terminated on one side by a face 49 provided with a threaded orifice 50 and on the opposite side, a connection pad 52.
  • the insulating support 51 is arranged in the form of a sleeve 53 extending perpendicularly to the grooves 35 capable of cooperating with the ribs 27 to form guide slides in the manner described above.
  • the bar 48 is inserted into the sleeve 53 and the assembly is arranged in such a way that during the insertion of the insulating support 51 into the cavity 22, the face 49 comes to lodge behind the track 21 by bringing the threaded orifice 50 to the right of the orifice 28 of the area 21.
  • the bar 48 advantageously comprises a flange 55 limiting the engagement of the bar 48 in the insulating support 51 to correctly position this bar relative to the range 21.
  • the polygonal section, in this case square, of the bar 48 prevents any rotation of the latter during the screwing of the screw 54.
  • the insulating support 51 advantageously comprises, in extension of the sleeve 53, a screen 56 enveloping the clamping screw 54 in order to improve the insulation of the connection.
  • an additional part 57 shown in FIG. 12 can be snapped onto the insulating support 51 in line with the screen 56.
  • This part 57 comprises a cover 58 capable of being folded over the 'end of the screen 56 to obstruct it and avoid contact with the head of the screw 54.
  • the cover 58 has a hole for tightening or loosening the screw with a key. It can be raised to allow the installation of the screw which must be done after the installation of the support.
  • the installation of the connection device is again particularly simple. and the bar 48 extends towards the rear part between the ribs 27 while respecting the sizes of the circuit breaker.
  • the personalization of the circuit breaker can thus be carried out during its assembly, the different types of connection being either systematically delivered with the circuit breaker, or supplied at the request of the fitter.
  • the change of the type of connection can be carried out on site without dismantling the he device and a standardization of the connections of different types of device is conceivable.
  • connection devices according to the invention is trapped in the housing 10 and any risk of deterioration of the latter, during the establishment or during the tightening of the fixing screw, is thus excluded.
  • the invention is of course by no means limited to the mode of implementation more particularly described.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP19930420025 1992-02-07 1993-01-21 Anschlussvorrichtung für einen Niederspannungsschalter mit Kunststoffgehäuse Expired - Lifetime EP0555157B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9201485A FR2687248B1 (fr) 1992-02-07 1992-02-07 Dispositif de raccordement d'un disjoncteur basse tension a boitier moule.
FR9201485 1992-02-07

Publications (2)

Publication Number Publication Date
EP0555157A1 true EP0555157A1 (de) 1993-08-11
EP0555157B1 EP0555157B1 (de) 1997-06-18

Family

ID=9426501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930420025 Expired - Lifetime EP0555157B1 (de) 1992-02-07 1993-01-21 Anschlussvorrichtung für einen Niederspannungsschalter mit Kunststoffgehäuse

Country Status (3)

Country Link
EP (1) EP0555157B1 (de)
DE (1) DE69311591T2 (de)
FR (1) FR2687248B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769404A1 (fr) * 1997-10-08 1999-04-09 Schneider Electric Sa Boitier pour un appareil electrique tel un disjoncteur
FR2911001A1 (fr) * 2007-05-31 2008-07-04 Ls Ind Systems Co Ltd Ensemble modulaire de bornes pour disjoncteur sous boitier moule et disjoncteur sous boitier moule comportant celui-ci
ES2337968A1 (es) * 2006-12-29 2010-04-30 Ls Industrial Systems Co., Ltd. Disyuntor y conjunto de modulo temrinal para disyuntor de caja moldeada.
CN107819229A (zh) * 2017-12-14 2018-03-20 重庆市中美电力设备有限公司 适用于不同直径电线连接的连接端子
CN107833790A (zh) * 2017-12-14 2018-03-23 重庆市中美电力设备有限公司 具有自动断电功能的楼控电子继电器
EP3624270A1 (de) 2018-09-13 2020-03-18 Schneider Electric Industries SAS Anschlussklemme eines elektrischen leiters an der klemmenleiste eines elektrischen geräts, und elektrisches schutzgerät, das eine solche klemme umfasst

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6379196B1 (en) 2000-03-01 2002-04-30 General Electric Company Terminal connector for a circuit breaker
DE20106248U1 (de) * 2001-04-04 2002-08-08 Siemens AG, 80333 München Anschlussschiene für Niederspannungs-Leistungsschalter
DE102009041034A1 (de) 2009-09-14 2011-03-17 Siemens Aktiengesellschaft Steckanschluss für ein elektrisches Schaltgerät sowie elektrisches Schaltgerät mit einem derartigen Steckanschluss
FR2950476B1 (fr) 2009-09-18 2011-09-16 Schneider Electric Ind Sas Assemblage d'un dispositif de coupure multipolaire a double enveloppe et disjoncteur le comprenant
FR2950475B1 (fr) 2009-09-18 2011-09-16 Schneider Electric Ind Sas Entretoise fonctionnelle de separation des ampoules dans un dispositif de coupure multipolaire, et disjoncteur
FR3029699B1 (fr) 2014-12-08 2019-05-31 Schneider Electric Industries Sas Dispositif de raccordement electrique comportant une sortie auxiliaire et appareil de commutation comportant un tel dispositif.
CN113394060B (zh) * 2021-05-22 2022-09-23 周口平高电气集团有限公司 一种高压直流断路器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535534A1 (fr) * 1982-10-27 1984-05-04 Merlin Gerin Dispositif de raccordement par serrage mecanique d'un cable ou d'une barre de connexion a une plage de contact d'un appareil electrique
EP0206883A1 (de) * 1985-06-12 1986-12-30 Merlin Gerin Lastschalter mit gegossenem Gehäuse
FR2612340A1 (fr) * 1987-03-13 1988-09-16 Merlin Gerin Borne de raccordement multiple pour appareil electrique modulaire
US4809132A (en) * 1987-10-23 1989-02-28 General Electric Co. Field installable line and load lug connectors for molded case circuit breakers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535534A1 (fr) * 1982-10-27 1984-05-04 Merlin Gerin Dispositif de raccordement par serrage mecanique d'un cable ou d'une barre de connexion a une plage de contact d'un appareil electrique
EP0206883A1 (de) * 1985-06-12 1986-12-30 Merlin Gerin Lastschalter mit gegossenem Gehäuse
FR2612340A1 (fr) * 1987-03-13 1988-09-16 Merlin Gerin Borne de raccordement multiple pour appareil electrique modulaire
US4809132A (en) * 1987-10-23 1989-02-28 General Electric Co. Field installable line and load lug connectors for molded case circuit breakers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769404A1 (fr) * 1997-10-08 1999-04-09 Schneider Electric Sa Boitier pour un appareil electrique tel un disjoncteur
EP0908915A1 (de) * 1997-10-08 1999-04-14 Schneider Electric Sa Gehäuse für ein elektrisches Gerät, wie ein Lastschalter
US6238254B1 (en) 1997-10-08 2001-05-29 Schneider Electric, Sa Housing for an electrical apparatus
ES2337968A1 (es) * 2006-12-29 2010-04-30 Ls Industrial Systems Co., Ltd. Disyuntor y conjunto de modulo temrinal para disyuntor de caja moldeada.
FR2911001A1 (fr) * 2007-05-31 2008-07-04 Ls Ind Systems Co Ltd Ensemble modulaire de bornes pour disjoncteur sous boitier moule et disjoncteur sous boitier moule comportant celui-ci
CN107819229A (zh) * 2017-12-14 2018-03-20 重庆市中美电力设备有限公司 适用于不同直径电线连接的连接端子
CN107833790A (zh) * 2017-12-14 2018-03-23 重庆市中美电力设备有限公司 具有自动断电功能的楼控电子继电器
CN107833790B (zh) * 2017-12-14 2020-01-14 重庆市中美电力设备有限公司 具有自动断电功能的楼控电子继电器
CN107819229B (zh) * 2017-12-14 2024-01-23 中山市信航五金塑料有限公司 适用于不同直径电线连接的连接端子
EP3624270A1 (de) 2018-09-13 2020-03-18 Schneider Electric Industries SAS Anschlussklemme eines elektrischen leiters an der klemmenleiste eines elektrischen geräts, und elektrisches schutzgerät, das eine solche klemme umfasst
FR3086114A1 (fr) 2018-09-13 2020-03-20 Schneider Electric Industries Sas Borne de raccordement d'un conducteur electrique a la plage de raccordement d'un appareil electrique, et appareil de protection electrique comportant une telle borne

Also Published As

Publication number Publication date
FR2687248A1 (fr) 1993-08-13
EP0555157B1 (de) 1997-06-18
DE69311591T2 (de) 1997-12-18
DE69311591D1 (de) 1997-07-24
FR2687248B1 (fr) 1994-04-01

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