EP1278225A1 - Schnelleinschaltvorrichtung - Google Patents

Schnelleinschaltvorrichtung Download PDF

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Publication number
EP1278225A1
EP1278225A1 EP01440222A EP01440222A EP1278225A1 EP 1278225 A1 EP1278225 A1 EP 1278225A1 EP 01440222 A EP01440222 A EP 01440222A EP 01440222 A EP01440222 A EP 01440222A EP 1278225 A1 EP1278225 A1 EP 1278225A1
Authority
EP
European Patent Office
Prior art keywords
arm
contact
contacts
movable contact
lever
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
EP01440222A
Other languages
English (en)
French (fr)
Other versions
EP1278225B1 (de
Inventor
Stéphane Haessler
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 AT01440222T priority Critical patent/ATE256337T1/de
Priority to EP01440222A priority patent/EP1278225B1/de
Priority to DE60101469T priority patent/DE60101469T2/de
Publication of EP1278225A1 publication Critical patent/EP1278225A1/de
Application granted granted Critical
Publication of EP1278225B1 publication Critical patent/EP1278225B1/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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker

Definitions

  • the present invention relates to an electrical appliance for circuit breaker type switching, i.e. comprising essentially at least one movable contact intended to cooperate with at minus a fixed contact to allow protected switching on a line of an electrical circuit. More specifically, the invention has directly relates to the possibility for this equipment to establish contact abrupt at the closing of the circuit, and to implement at the opening of the circuit the function called sectioning in case of welding of contact.
  • the sudden closure is defined in particular by the independence between the energy applied to a device control handle and that which is communicated to the mobile contact when it makes the last portion of its course aimed at bringing it against the fixed contact.
  • One of the principles that underpin snap closure systems are to interpose an element between the contacts, against which the contact mobile first comes up against its movement of rotation following the drive of the control lever, and then retract said element when the lever is in the part end of its closing stroke of said contacts.
  • the movement communicated to the joystick is transmitted to the mobile contact via a contact holder on which the mobile contact is resiliently mounted by means of a connecting spring.
  • fall height which must be sufficient to prevent the creation of an arc electric, but not too important to avoid any rebound when the contact mobile is released, and so that the compression of the spring is not too strong.
  • the moment of energy restitution that is to say the moment of "letting go” of the mobile contact, is also essential: it is necessary that the effort electrodynamics which applies when the contacts are closed, in the direction of a spacing of the latter, is balanced by the force of the spring, to ensure that the pressure force is sufficient on closing. This pressure must more apply as uniformly as possible over the entire contact surface, to avoid any risk of welding if the contact area becomes too gradually enlarged, and therefore remains restricted for too long.
  • snap-close systems must be designed to drop the moving contact on the fixed contact from a certain height to a certain moment.
  • the other end of said rod rests on a shoe overhanging the fixed contact, so as to be able to stop the movement of the movable contact when the latter arrives near the fixed contact in response to a rotary movement of the control lever.
  • the movable contact When we arrive in the final portion of the race of said lever in order to closing of the contacts, the movable contact arrives against the free end of said rod, and compresses a spring connecting it to a plate driven by the lever.
  • the length of the interposition rod and that of the drum slot of the joystick command are calculated so that at a later point in the course of the lever, the interposition rod is driven by the lever, suddenly releasing the mobile contact.
  • the training of said rod occurs when its end connected to the drum of the lever arrives at the end of the curvilinear slot.
  • return means are fixed on the one hand to the rod interposition and secondly to the frame of the device, allowing the return of the rod interposition in the locking position of the movable contact when the lever is operated in the opening direction of the contacts.
  • the present invention overcomes these drawbacks, and presents a system in which an interposing arm between the movable contact and the fixed contact is very simply placed after and on the components making up the electrical appliance in which it is installed, then guided thanks to the particular configuration given to these components and / or the housing of the device.
  • the device which is the subject of the invention makes it possible to perform the function of sectioning, which the German patent system did not provide DE 40 16 364.
  • the invention relates to an electrical appliance for circuit breaker type switching comprising at least one movable contact intended for cooperate with at least one fixed contact relative to the housing, the movable contact being disposed on a contact carrier actuated in rotation by means of a handle movable between two stable positions corresponding respectively to the opening and when the contacts are closed, the movable contact itself being disposed in rotation on said contact carrier, elastic return means being provided between them to apply the movable contact in the closing direction of the contacts.
  • An arm controlled by the lever is arranged to interpose between the contacts during a portion of the final stroke for closing the movable contact, the contact carrier can continue its race while the moving contact is blocked, said means of recall thus storing energy. The arm is then retracted, allowing the mobile contact to continue its course with energy returned by said recall means.
  • said arm is designed to be guided without fixing, by simple contacts with walls, ribs and reliefs provided and oriented for this purpose in the housing, the movement of said arm, having a translative component combined with a rotary component, being provided by the combined action of the moving contact, the control lever and the weight of the arms.
  • a kind of housing is created after all of the components of the device, designed to be able to remove the interposing arm between marks designed either directly in the case, or in said components.
  • said arm has a lateral notch opening on the side of the control lever, which has a first stop acting on one the ends of the arm when it is in the stable contact opening position, the arm then being in its position for blocking the movable contact, and a finger actuation provided to cooperate with the transverse sides of the notch, parallel to said end of the arm, in order to drive it in a sliding fashion parallel to its axis, without preventing its rotation.
  • the aforementioned housing, as well as the geometric configuration of the different elements, must as mentioned allow a complex movement of the arm of interposition, which can roughly be divided into a translation and a rotation of limited amplitude which sometimes occur simultaneously.
  • the stop and the actuating finger are arranged at the periphery of a rotary drum forming the handle with a manipulation lever, at a recess made at the axial end of the drum, and having a flat bottom on which the arm rests, the first stop being a shoulder limiting this recess in the vicinity of said lever, the finger actuator being an axial stud of cylindrical appearance placed in the recess of so that it can get into the notch of the arm when moving the control lever towards the closed position of the contacts, said notch being sized so that said actuating finger can act on the one hand one of said transverse sides of said notch in the final stroke portion the lever during which the movable contact is blocked, and on the other hand the other transverse side during the reverse stroke of the lever, in the direction of opening contacts.
  • the stop and the actuating finger of the lever intervene essentially for sliding, i.e. translational displacement, but they do not not oppose a rotation otherwise required by the functions to be implemented work, and enabled by the location of the other stops / ribs.
  • the configuration of the handle is such that preferably the actuating finger is offset on a protrusion protruding radially from the drum of the joystick ordered.
  • this finger consists of the end of the link connecting the lever to the contact carrier, which makes the most of the structure of the existing devices, which have this configuration even when they are lacking an abrupt closing and cutting mechanism.
  • the interposing arm When driving the joystick in the direction of the closing of the contacts, the interposing arm, when it is retracted, is pulled towards the front of the product, i.e. the wall which includes the window in which moves the joystick. According to one possibility, this wall serves more as a stop for the end of the arm which is adjacent to it, at the end of the travel of said lever when the contacts are closed.
  • the other end of the interposition arm located near the area of contact, has a profile allowing it on one side to block the mobile contact, and on the other side to adapt to a cam profile integral with the housing.
  • the latter allows on the one hand to remain first in abutment before retracting by rotation under the action of the movable contact after having simultaneously undergone a sliding in direction of the joystick, and secondly to achieve a blocking when the arm slides in the other direction, only if the contacts, to ensure the isolation function.
  • the cam profile is therefore designed to interact with the free end of the arm in both directions of movement of the joystick, depending on the relative position of the fixed and mobile contacts, and to produce guides / arm blockages corresponding to the functions to be performed.
  • the closing function abrupt requires, as explained above, keeping contacts at a distance, followed by an abrupt release.
  • the sectioning function requires the arm to be locked in a position preventing the lever from returning to the position corresponding to opening of the contacts, but only if the contacts are welded. If they don't are not, the cam profile should guide the arm to its initial position, contacts open.
  • the cam profile has a shape with two stair treads allowing the arm to adopt two distinct positions according to its state of sliding, a position for blocking the movable contact at a distance from the fixed contact, and a retracted position allowing the electrical contact to be established suddenly at the end of the movement of the joystick leading to the closing of the contact.
  • the riser is used for blocking the arm, in turn stopping the rotation of the lever during the reverse movement aimed at opening the contact.
  • the end profile of the arm on which the movable contact comes into contact is oriented substantially parallel to the orientation of the movable contact when this arrives against the arm during the movement of the joystick in order to close the contacts.
  • the movable contact can therefore rest according to a flat, stable support against the arm when in the interposition position.
  • the opposite link arm / profile-cam should have the same level of stability.
  • the end profile of the arm intended to come into contact with the cam profile has for this purpose a corner whose two faces are substantially perpendicular and oriented so that they also take support plan on the steps and riser in the different positions of operation, respectively allowing the rotation blocking, the guiding of the retraction of the arm, and its locking in translation.
  • the face of the corner which is substantially parallel to the axis of the arm acts in the direction of rotation, that is to say for the function of sudden closing, while the face which is perpendicular to said axis acts axially, that is to say rather for the function sectioning.
  • said face of the corner intended to come to bear on the steps and the profile intended to come into contact with the movable contact are substantially parallel, of so as to guarantee a constant distance between contacts.
  • the electrical devices concerned by the invention include a box provided a first shell in which the components of said device are arranged, and a closure cover which in this case has ribs forming stops and guiding the movement of the arm, mainly arranged so as to act on the side of the interposing arm opposite the control lever when the movable contact deviates from the fixed contact.
  • said ribs are arranged at the ends of the arm and delimit with the cam profile of the shell on the one hand, and the lever of controls on the other hand, a corridor wider than said arm, in which the latter can slide and undergo a small amplitude rotation.
  • This configuration, as well as the orientation of the stair steps and the corner ends of the interposing arm are such that when the product is fixed in an electrical distribution board, generally on a standardized guide rail, the lever and the cam profile are located above the interposition arm, and the ribs mentioned above.
  • the electrical device of the invention comprises a housing external composed of a shell (B) in which the components are arranged constituting said device, this shell being closed by a cover (C) (not shown, see Figures 2 to 8), the shell (B) and the cover (C) forming the housing in this case having a modular volume as generally conferred on electrical devices according to the invention.
  • control lever (1) conventionally consisting of a lever (2) extending radially from a drum (3), mounted rotatable relative to the housing.
  • the lever (1) actuates a knee-type mechanism comprising in particular a link (4) whose remote end of said lever (1) cooperates with a rotary assembly mainly comprising a contact carrier (5) on which is mounted the movable contact (6), in a rotation connection controlled by a torsion spring (7).
  • the knee lever drives the contact carrier (5) in reverse rotation so that the movable contact (6) gradually approaches the contact fixed (8).
  • the toggle mechanism drives the contact carrier (5), as well as the movable contact (6), so as to move it away from the fixed contact (8).
  • the contact carrier (5) cooperates in this type of device with other elements forming a mechanical cut-out lock, which are actuated during short circuits or significant increases in current, by devices respectively magnetic and conventional thermal, which however do not the subject of the invention and are therefore not described.
  • Figure 1 also shows an arm (9) disposed in the space above of the contact area, substantially between said movable contacts (6) and fixed (8).
  • Figure 2 shows these same elements, exactly in the same configuration, a cover (C) shown in transparency having been applied against the shell (B).
  • the arm interposition (9) In the open position of the contacts, in which the lever (2) of the lever (1) is in a stable position, oriented to the right of the drawing, the arm interposition (9) is itself at rest in a stable position, pressing against a number of stops.
  • Some of these stops (10, 11) correspond to ribs / reliefs on the cover, and appear in bold lines. They are located on the right of the interposing arm (9), the support zones on each of the elements generally being shown in hatched lines.
  • Another stop (12) is formed in the drum (3) of the handle (1), from a recess (13) formed in a part of the periphery of said drum (3), as shown in particular clearly in Figure 11.
  • This recess (13) serves support platform at one end of the interposing arm (9), which rests in the same way as it rests at its other end on reliefs and / or hull components (B).
  • this recess (13) ends with a shoulder (12) forming the abovementioned stop.
  • the other end of the interposing arm (9) is wedged in a relief of suitable shape forming the stop (11, 27) disposed in the cover (C) of the housing.
  • said interposing arm (9) actually rests in part thanks to its weight on the grooves (10) and (11) of the lid.
  • Figure 3 shows the same elements, the handle (1) having in this case started its rotational movement with a view to closing the contacts (6, 8).
  • an actuating stop or finger (14) located on a projection eccentric both of the drum (3) and the recess (13), also begins its rotation, and begins its insertion into a notch (16) formed in the arm (9).
  • the toggle mechanism drives the movable contact (6) in reverse rotation, so as to bring it closer to the fixed contact (8).
  • the stop (12) limiting the recess (13) begins to move away from the end (17) of the arm interposition (9).
  • the actuating finger (14) simply enters the notch (16), at the time where the movable contact (6) comes into contact with the lateral end profile (18) of the interposing arm (9).
  • the drive of the joystick (1) can however continue, like this appears in FIG. 6, implying a corresponding rotation of the contact carrier (5), in turn causing the compression of the spring (7) due to the immobility of the contact mobile (6).
  • the finger actuator (14) comes into contact with the upper transverse side (24) of the notch (16).
  • the actuating finger (14) drives the arm interposition (9) upwards, following a guided sliding between the rib (10) of the cover on the one hand and, "diagonally", the step (21) in contact with the profile corner (20) on the other hand. there is therefore sliding of said profile (20) on the step (21), and sliding of the profile (18) along the lateral edge of the movable contact (6).
  • the gap between the latter and the fixed contact is not yet modified, because substantially parallel orientation of the surfaces (10) and profiles (20, 21, 18) supra.
  • This figure also shows the existence of a transverse support between a projection (25) located at the longitudinal end of the arm (9), and an extension (27) of the rib (11) of the cover (C) of surface substantially perpendicular to the profiles (18, 20, 21, 10) previously cited.
  • the arm (9) slides sufficient distance to allow the corner end profile (20) to be suddenly repelled by the movable contact (6) in contact with the step (23), in sliding along the riser (22).
  • the energy returned by the spring (7) allows the mobile contact to relax and its abrupt closure against the fixed contact (8), when the free end of the arm (9) is pushed back towards the step (23), for a rotation of amplitude limited to the distance separating the two steps (21) and (23).
  • the end (17) of the interposing arm (9) comes into contact of the shell wall (B) of the case, while remaining guided by the rib (10) of the lid.
  • a functional clearance remains between the actuating finger (14) and the side (24) of the notch (16).
  • the actuating finger (14) also being moved by a reverse movement, it approaches the opposite side (26) of the notch (16), between in contact with it and pushes the arm (9) back to its initial position such that shown in Figures 1 and 2.
  • Figure 11 corresponds, in perspective, to Figure 10, and it allows to get a better idea of the different reliefs involved in the movements of the above.
  • the shell (B) is devoid of its cover (C), and some of the guide elements, in particular axial, are therefore not shown.
  • the interest of this figure is however to highlight the fact that the arm (9) is simply placed on the components that precede it in the assembly order of the electrical device of the invention, the subsequent installation of the cover to complete the installation of the guides involving a double relationship to the housing and other components.

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  • Mechanisms For Operating Contacts (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Gyroscopes (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
EP01440222A 2001-07-16 2001-07-16 Schnelleinschaltvorrichtung Expired - Lifetime EP1278225B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT01440222T ATE256337T1 (de) 2001-07-16 2001-07-16 Schnelleinschaltvorrichtung
EP01440222A EP1278225B1 (de) 2001-07-16 2001-07-16 Schnelleinschaltvorrichtung
DE60101469T DE60101469T2 (de) 2001-07-16 2001-07-16 Schnelleinschaltvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01440222A EP1278225B1 (de) 2001-07-16 2001-07-16 Schnelleinschaltvorrichtung

Publications (2)

Publication Number Publication Date
EP1278225A1 true EP1278225A1 (de) 2003-01-22
EP1278225B1 EP1278225B1 (de) 2003-12-10

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ID=8183258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01440222A Expired - Lifetime EP1278225B1 (de) 2001-07-16 2001-07-16 Schnelleinschaltvorrichtung

Country Status (3)

Country Link
EP (1) EP1278225B1 (de)
AT (1) ATE256337T1 (de)
DE (1) DE60101469T2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2061059A1 (de) * 2007-11-16 2009-05-20 Schneider Electric Industries SAS Steuervorrichtung für ein elektrisches Unterbrechungsgerät und elektrisches Unterbrechungsgerät, das damit ausgestattet ist
CN101436470A (zh) * 2007-11-16 2009-05-20 施耐德电器工业公司 电开关设备及其操作装置
CN101882545A (zh) * 2009-05-04 2010-11-10 上海良信电器股份有限公司 用于小型断路器的快速闭合机构
WO2022028849A1 (de) * 2020-08-07 2022-02-10 Siemens Aktiengesellschaft Bedienerunabhängiges kompaktsprungschaltwerk und elektromechanisches schutzschaltgerät

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019033B4 (de) * 2010-05-03 2012-02-23 Abb Ag Elektrisches Installationsschaltgerät
DE102013004093B4 (de) * 2013-03-11 2015-01-08 Abb Ag Elektrisches lnstallationsschaltgerät
CN207425751U (zh) * 2017-06-08 2018-05-29 李文杰 一种高分断小型断路器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016364A1 (de) * 1989-06-30 1991-01-03 Siemens Ag Leitungsschutzschalter mit momenteinschaltung
EP0773572A1 (de) * 1995-11-08 1997-05-14 Legrand Elektrisches Gerät mit Schnappeinschaltung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016364A1 (de) * 1989-06-30 1991-01-03 Siemens Ag Leitungsschutzschalter mit momenteinschaltung
EP0773572A1 (de) * 1995-11-08 1997-05-14 Legrand Elektrisches Gerät mit Schnappeinschaltung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2061059A1 (de) * 2007-11-16 2009-05-20 Schneider Electric Industries SAS Steuervorrichtung für ein elektrisches Unterbrechungsgerät und elektrisches Unterbrechungsgerät, das damit ausgestattet ist
CN101436470A (zh) * 2007-11-16 2009-05-20 施耐德电器工业公司 电开关设备及其操作装置
EP2061058A1 (de) * 2007-11-16 2009-05-20 Schneider Electric Industries SAS Steuervorrichtung für ein elektrisches Unterbrechungsgerät und elektrisches Unterbrechungsgerät, das damit ausgestattet ist
FR2923943A1 (fr) * 2007-11-16 2009-05-22 Schneider Electric Ind Sas Dispositif de commande d'un appareil electrique de coupure, et appareil electrique de coupure le comportant
FR2923942A1 (fr) * 2007-11-16 2009-05-22 Schneider Electric Ind Sas Dispositif de commande d'un appareil de coupure electrique et appareil de coupure electrique le comportant
RU2470405C2 (ru) * 2007-11-16 2012-12-20 Шнейдер Электрик Эндюстри Сас Исполнительный орган электрического распределительного устройства и электрическое распределительное устройство, содержащее его
CN101436471B (zh) * 2007-11-16 2013-03-27 施耐德电器工业公司 电开关设备单元及其操作装置
CN101436470B (zh) * 2007-11-16 2013-12-18 施耐德电器工业公司 电开关设备及其操作装置
CN101882545A (zh) * 2009-05-04 2010-11-10 上海良信电器股份有限公司 用于小型断路器的快速闭合机构
WO2022028849A1 (de) * 2020-08-07 2022-02-10 Siemens Aktiengesellschaft Bedienerunabhängiges kompaktsprungschaltwerk und elektromechanisches schutzschaltgerät

Also Published As

Publication number Publication date
ATE256337T1 (de) 2003-12-15
DE60101469D1 (de) 2004-01-22
EP1278225B1 (de) 2003-12-10
DE60101469T2 (de) 2004-10-07

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