EP0338868A1 - Modulares elektrisches Schutz- oder Befehlsgerät - Google Patents

Modulares elektrisches Schutz- oder Befehlsgerät Download PDF

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Publication number
EP0338868A1
EP0338868A1 EP89400013A EP89400013A EP0338868A1 EP 0338868 A1 EP0338868 A1 EP 0338868A1 EP 89400013 A EP89400013 A EP 89400013A EP 89400013 A EP89400013 A EP 89400013A EP 0338868 A1 EP0338868 A1 EP 0338868A1
Authority
EP
European Patent Office
Prior art keywords
tab
terminal
housing
connection part
bimetallic strip
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
EP89400013A
Other languages
English (en)
French (fr)
Other versions
EP0338868B1 (de
Inventor
Jean-Marie Roiatti
Francis Deckert
Thierry Sitz
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.)
Hager Electro SAS
Original Assignee
Hager Electro 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 Hager Electro SAS filed Critical Hager Electro SAS
Priority to AT89400013T priority Critical patent/ATE91821T1/de
Publication of EP0338868A1 publication Critical patent/EP0338868A1/de
Application granted granted Critical
Publication of EP0338868B1 publication Critical patent/EP0338868B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H01H71/7436—Adjusting the position (or prestrain) of the bimetal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H01H2001/5861—Box connector with a collar or lug for clamping internal rail and external conductor together by a tightening screw
    • 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
    • H01H71/08—Terminals; Connections
    • H01H2071/084—Terminals; Connections specially adapted for avoiding decalibration of trip unit, e.g. bimetal, when fixing conductor wire to connector
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection

Definitions

  • the present invention relates to an improvement of electrical protection or control devices, in particular modular devices, for example circuit breaker, differential circuit breaker, such as those which are installed in the control panels of electrical installations.
  • connection terminals generally of the cage terminal type, allowing the insertion and tightening of external conductors, said terminals being connected to a contact mechanism having one or more movable contacts capable of to be moved between a closed position with the fixed contact (s) and an open position remote from these contacts.
  • one of these terminals is generally electrically connected to a bi-metallic or bimetal trip device capable, when it is deformed by heating due to a current overload, to trigger the device. protection.
  • this terminal is also connected to an arc guiding electrode cooperating with the parts of an arc receiving chamber.
  • French patent application FR-A-2 580 861 describes a single cut and folded part incorporating the connection terminal, a current conducting part, a switching or arc guiding electrode and a fixing location for the bimetallic strip.
  • the present invention proposes to remedy these drawbacks and to provide an apparatus such as a circuit breaker or differential circuit breaker which has a part providing several functions and which allows simplified manufacture and assembly.
  • Another objective of the invention is to make it possible to manufacture this part on a single machine, making it possible, moreover, to pre-adjust the position of a screw. bimetal adjustment.
  • the subject of the invention is an apparatus such as a circuit breaker or differential circuit breaker containing, in a modular type housing, one or more fixed contacts cooperating with one or more movable contacts, an arcing chamber at the level of the contact zone, a tripping bimetallic strip and, at one of the interconnection terminals of the housing, a conductive part, characterized in that said part, produced in one piece by cutting and folding, has a connection part to the terminal, an elastically deformable tab located opposite an adjustment screw and receiving the end of a bimetallic strip, and an extension forming a switching electrode, said part having at least one preferential deformation zone allowing deformations around a geometric axis so that torsional or bending forces occurring in the connection part when the terminal is tightened cannot be transmitted to the tab supporting the bimetallic strip.
  • connection part of the conductive part is fixed or welded in a suitable location of the terminal, which can be of any type and, preferably, this connection part connects to the rest of the conductive part by a remote part laterally with respect to the rest of the part to allow the bimetallic strip to pass freely, the lateral connection zone thus produced constituting a deformation zone whose axis is preferably parallel or slightly inclined relative to the direction of the bimetallic strip.
  • the free end of the tab supporting the bimetallic strip comes to face an adjusting screw capable of being turned in a nut or tapping which can, for example, be immobilized in a suitable housing of the housing.
  • connection part made integral with the terminal, having for example a form of platinum, continues, at one of its edges, at another preferential deformation zone, by a tab receiving the adjusting screw and, on another edge, preferably perpendicular to the first, and through of the first preferential deformation zone, by a conductive part dividing, on the one hand, into a lug orienting itself opposite the lug receiving the screw and intended to support the bimetallic strip, and, on the other hand, into a suitably curved elongated part forming a switching electrode.
  • the lug receiving the screw is, during assembly, inserted in a part of the housing allowing a blocking of shape in the three directions of the space, while the part extending from the other edge of the plate, is also blocked in the three directions of space, and in particular, preferably, at a bend located near a strand connecting the bend to the terminal connection part in the form of platinum, via a preferential deformation zone, said bend continuing, on one side, by the tab carrying the bimetallic strip and on the other side by the extension intended to form the electrode.
  • the element according to the invention is intended to be incorporated in a suitable housing in a modular housing which also has housings for receiving: - a first terminal 1 with its cage and its screw 2, - a second terminal 3 with its cage and its screw 4, - a usual arc extinguishing chamber 5, a fixed contact 6 and a movable contact 7.
  • the element 8 has a plate 8 parallel to the large faces of the housing and intended to be fixed or welded against a tab of the terminal 1.
  • This plate 9 is connected by a bend 10 at right angles to a part 11 parallel to the face in look of terminal 1, this part 11 continuing with a leg obliquely elongated downwards, 12, which, after a suitable recess 13, forms a leg end 14 against which the lower end of a bimetallic strip 15, and this opposite a nut 16 immobilized in a suitable housing 17 of the housing and receiving an adjustment screw 18.
  • the position of the bimetallic strip can therefore be adjusted by more or less significant screwing of the adjustment screw 18 of so as to more or less move the tab 12 from the stationary nut 16.
  • the part 11 continues with a U-shaped bend 19 then, after a return parallel to the part 11, by a doubly bent part in S 20, after which a conductive part 21 forming an elbow of large radius is continued by an elongated part 22 provided with suitable lateral cutouts and forming the switching or guiding arc electrode.
  • the element 8 is manufactured from a sheet, preferably, of copper-plated steel by cutting and stamping, and folding, the bimetallic strip being welded on its end of tab (14) before or after folding of the platinum 9.
  • Terminal 1 advantageously has an offset tab 23, parallel to plate 9 and extending, after an elbow 24, with an axis parallel to that of elbow 10, from a rear face 26 of terminal 1.
  • Terminal 1 is received in a usual housing housing, which has a relief 27 immobilizing and blocking in its plane the terminal part 26 whose lower end abuts on the relief 27.
  • the housing also has a housing receiving the element 8, so as to support it in particular at the bent part 21 and the parts 11, 19.
  • the elbow 10 connecting the plate 9 and the part 11 forms a preferential deformation zone.
  • An additional preferential deformation zone can be constituted by the bent part 24 connecting the tab 23 to the rest of the terminal 1 and, moreover, a notch 25 can advantageously reduce the height of the tab 23 at this location. It is therefore understood that the possible deformations undergone by the terminal, when tightening a conductor, hardly communicate with the bimetallic strip 12.
  • the element 108 has a plate 109 intended to be mounted against the terminal 101 in order to ensure the connection with said terminal, the plate 109 preferably having stiffening ribs 110 as well as upper 111 and lower 112 notches allowing, in cooperation with a corresponding notch 113 and a return 114 of the terminal 101, to ensure a blocking with electrical connection of the terminal and the plate 109, the latter being able, moreover, to increase the rigidity of the terminal.
  • the tab 115 offset relative to the plane of the plate by a double elbow and having a part 116 of reduced width due to the presence of the notch 112, this part 116 being cut in a square to be connected on the one hand to the plate and on the other hand to the tab 115. It is understood that at the level of this part 116, a deformation can occur preferable to two degrees of freedom, in particular around a geometric axis parallel to the lower edge of the plate, that is to say perpendicular to the large faces of the housing of the device, and an axis perpendicular to the previous one.
  • the lower part of the tab 115 has, by stamping, a bead 117 with a tapping 118 capable of receiving a screw or adjusting needle 119.
  • One of the two lateral edges of the plate 109 that is to say one of the two edges perpendicular to the base edge which carries the extension 116, continues, after a bend, by a part 120 perpendicular to the plane of the plate 109, an arch-shaped cutout 121 dividing, at the connection to the plate, the part 120 into two parallel branches 122. It is understood that at this location, the weakening thus produced forms a deformation zone preferential around the elbow connecting the plate to the two branches 122, allowing deformation around an axis, this time parallel to the large faces of the housing of the device and perpendicular to its bottom.
  • the part 120 is bent so as to form a part 123 extending opposite the plate 109 and parallel to it, this part 123 continuing with an elongated leg obliquely downwards, 124, which, after a suitable recess, forms a leg end 125 against which the lower end of a bimetal strip 126 can be fixed or welded, and this opposite the tapping 118.
  • the position of the bimetal strip can therefore be adjusted by more or less significant screwing of the adjusting screw 119 so as to move the tab 124 more or less apart from the stationary tab 115.
  • the part 123 is continued by a U-shaped bend 127 then, after a return parallel to the part 123, by a doubly bent part 128, after which a conductive part 129 forming an elbow of large radius is continued by a elongated part 130 provided with suitable lateral cutouts and forming the switching or guiding arc electrode.
  • the element 108 is made from a sheet, preferably of copper-plated steel, by cutting-stamping, tapping and folding, the bimetallic strip being welded to its end of leg 125 before folding the plate, and the screw 119 is introduced and screwed into the internal thread 118.
  • the screw 119 can be pre-adjusted according to a predetermined screwing depth.
  • the plate can then be assembled to terminal 101 preferably by soldering and the whole set up in the housing before closing the cover.
  • the welding takes place above the notch 111, between the plate 109 and a transverse upper tab 131 of the terminal 101, this tab extending laterally by a zone 132 allowing the welding of a conductive braid.
  • the housing has a terminal and element housing having the desired complementary shapes, namely the usual forms for housing the terminal 101, a slot designed to accommodate the tab 115 by preventing its movement in the three directions of space. leaving part 116 free, a stud penetrating into the cutout 121 so as to prevent the movement, along the bending axis of the elbow, of the branches 122 and, preferably, at the elbow 127, the walls preventing movement in the two other directions of space.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Control Of Electric Motors In General (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Details Of Indoor Wiring (AREA)
  • Push-Button Switches (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP89400013A 1988-04-21 1989-01-03 Modulares elektrisches Schutz- oder Befehlsgerät Expired - Lifetime EP0338868B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400013T ATE91821T1 (de) 1988-04-21 1989-01-03 Modulares elektrisches schutz- oder befehlsgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805277 1988-04-21
FR8805277A FR2630580B1 (fr) 1988-04-21 1988-04-21 Appareil modulaire de protection ou de commande electrique

Publications (2)

Publication Number Publication Date
EP0338868A1 true EP0338868A1 (de) 1989-10-25
EP0338868B1 EP0338868B1 (de) 1993-07-21

Family

ID=9365523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400013A Expired - Lifetime EP0338868B1 (de) 1988-04-21 1989-01-03 Modulares elektrisches Schutz- oder Befehlsgerät

Country Status (4)

Country Link
EP (1) EP0338868B1 (de)
AT (1) ATE91821T1 (de)
DE (1) DE68907633T2 (de)
FR (1) FR2630580B1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691668A1 (de) * 1994-07-08 1996-01-10 Legrand Thermische Untereinheit für Schutzschalter
FR2735614A1 (fr) * 1995-06-19 1996-12-20 Schneider Electric Sa Dispositif de reglage du declencheur thermique d'un disjoncteur
WO2002061785A1 (de) * 2001-01-31 2002-08-08 Siemens Aktiengesellschaft Justiervorrichtung für einen thermischen auslöser
WO2003005395A1 (de) * 2001-07-02 2003-01-16 Siemens Aktiengesellschaft Justiervorrichtung für einen thermischen auslöser
WO2005101443A2 (de) * 2004-04-19 2005-10-27 Moeller Gebäudeautomation KG Schaltgerät
US7041921B2 (en) 2004-04-19 2006-05-09 Moeller Gebäudeautomation KG Switching device
EP2178101A1 (de) * 2008-10-15 2010-04-21 ABB S.p.A. Niederspannungsschutzschalter
CN103441049A (zh) * 2013-09-06 2013-12-11 华坤电气有限公司 一种加强自励磁场强度的引弧结构
CN107833810A (zh) * 2017-10-26 2018-03-23 上海良信电器股份有限公司 断路器用引弧角
CN107833805A (zh) * 2017-10-26 2018-03-23 上海良信电器股份有限公司 一种断路器热脱扣系统
RU179980U1 (ru) * 2016-06-27 2018-05-30 Шнейдер Электрик Эндюстри Сас Компенсирующая структура теплового выключателя
CN109599305A (zh) * 2018-11-14 2019-04-09 东莞基业电气设备有限公司 一种适合调试延时脱扣的断路器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020215A1 (de) * 2005-04-30 2006-11-09 Abb Patent Gmbh Thermischer Auslöser

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437059A3 (fr) * 1978-09-21 1980-04-18 Licentia Gmbh Declencheur bimetallique pour disjoncteurs electriques
EP0050719A1 (de) * 1980-08-21 1982-05-05 Heinrich Kopp GmbH & Co. KG Kontakt- und Löscheinrichtung für elektrische Kleinselbstschalter
EP0105945A1 (de) * 1982-10-11 1984-04-25 Heinrich Kopp GmbH & Co. KG Elektrischer Geräteschutzschalter
FR2580861A1 (fr) * 1985-04-20 1986-10-24 Licentia Gmbh Disjoncteur de protection de canalisations electriques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437059A3 (fr) * 1978-09-21 1980-04-18 Licentia Gmbh Declencheur bimetallique pour disjoncteurs electriques
EP0050719A1 (de) * 1980-08-21 1982-05-05 Heinrich Kopp GmbH & Co. KG Kontakt- und Löscheinrichtung für elektrische Kleinselbstschalter
EP0105945A1 (de) * 1982-10-11 1984-04-25 Heinrich Kopp GmbH & Co. KG Elektrischer Geräteschutzschalter
FR2580861A1 (fr) * 1985-04-20 1986-10-24 Licentia Gmbh Disjoncteur de protection de canalisations electriques

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691668A1 (de) * 1994-07-08 1996-01-10 Legrand Thermische Untereinheit für Schutzschalter
FR2722331A1 (fr) * 1994-07-08 1996-01-12 Legrand Sa Sous-ensemble thermique pour disjoncteur
FR2735614A1 (fr) * 1995-06-19 1996-12-20 Schneider Electric Sa Dispositif de reglage du declencheur thermique d'un disjoncteur
EP0760524A1 (de) * 1995-06-19 1997-03-05 Schneider Electric Sa Vorrichtung zum einstellen eines thermischen auslösers einer schutzschalter
CN1066846C (zh) * 1995-06-19 2001-06-06 施耐德电器工业公司 用于调整断路器热断开机构的装置
WO2002061785A1 (de) * 2001-01-31 2002-08-08 Siemens Aktiengesellschaft Justiervorrichtung für einen thermischen auslöser
US6816055B2 (en) 2001-01-31 2004-11-09 Siemens Aktiengesellschaft Adjusting device for a thermal trip element
WO2003005395A1 (de) * 2001-07-02 2003-01-16 Siemens Aktiengesellschaft Justiervorrichtung für einen thermischen auslöser
US7135953B2 (en) 2001-07-02 2006-11-14 Siemens Aktiengesellschaft Adjusting device for a thermal trip
WO2005101443A2 (de) * 2004-04-19 2005-10-27 Moeller Gebäudeautomation KG Schaltgerät
WO2005101443A3 (de) * 2004-04-19 2005-12-22 Moeller Gebaeudeautomation Kg Schaltgerät
US7041921B2 (en) 2004-04-19 2006-05-09 Moeller Gebäudeautomation KG Switching device
EP2178101A1 (de) * 2008-10-15 2010-04-21 ABB S.p.A. Niederspannungsschutzschalter
CN101728128A (zh) * 2008-10-15 2010-06-09 Abb股份公司 低压断路器
RU2524402C2 (ru) * 2008-10-15 2014-07-27 АББ С.п.А. Низковольтный выключатель
CN101728128B (zh) * 2008-10-15 2014-09-24 Abb股份公司 低压断路器
CN103441049A (zh) * 2013-09-06 2013-12-11 华坤电气有限公司 一种加强自励磁场强度的引弧结构
CN103441049B (zh) * 2013-09-06 2015-07-22 浙江大华电气有限公司 一种加强自励磁场强度的引弧结构
RU179980U1 (ru) * 2016-06-27 2018-05-30 Шнейдер Электрик Эндюстри Сас Компенсирующая структура теплового выключателя
US10204755B2 (en) 2016-06-27 2019-02-12 Schneider Electric Industries Sas Thermal trip compensation structure
CN107833810A (zh) * 2017-10-26 2018-03-23 上海良信电器股份有限公司 断路器用引弧角
CN107833805A (zh) * 2017-10-26 2018-03-23 上海良信电器股份有限公司 一种断路器热脱扣系统
CN109599305A (zh) * 2018-11-14 2019-04-09 东莞基业电气设备有限公司 一种适合调试延时脱扣的断路器
CN109599305B (zh) * 2018-11-14 2020-05-19 东莞基业电气设备有限公司 一种适合调试延时脱扣的断路器

Also Published As

Publication number Publication date
DE68907633D1 (de) 1993-08-26
EP0338868B1 (de) 1993-07-21
ATE91821T1 (de) 1993-08-15
FR2630580B1 (fr) 1990-08-03
FR2630580A1 (fr) 1989-10-27
DE68907633T2 (de) 1994-03-10

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