EP0849759A1 - Appareil de coupure pour une installation électrique - Google Patents

Appareil de coupure pour une installation électrique Download PDF

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Publication number
EP0849759A1
EP0849759A1 EP97121619A EP97121619A EP0849759A1 EP 0849759 A1 EP0849759 A1 EP 0849759A1 EP 97121619 A EP97121619 A EP 97121619A EP 97121619 A EP97121619 A EP 97121619A EP 0849759 A1 EP0849759 A1 EP 0849759A1
Authority
EP
European Patent Office
Prior art keywords
switching device
lever
push button
installation switching
sliding surface
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
EP97121619A
Other languages
German (de)
English (en)
Other versions
EP0849759B1 (fr
Inventor
Gerhard Dipl.-Ing. Mössner
Heinz Dr.-Ing. Popa
Rolf Dipl.-Ing. Goehle
Klaus-Peter Dipl.-Ing. Eppe
Volker Schmitt
Ralf Dipl.-Ing. Wieland
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 Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0849759A1 publication Critical patent/EP0849759A1/fr
Application granted granted Critical
Publication of EP0849759B1 publication Critical patent/EP0849759B1/fr
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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/562—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam
    • 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
    • H01H71/1009—Interconnected mechanisms
    • 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
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide

Definitions

  • the invention relates to a multi-pole installation switching device, in particular one Multi-pole circuit breaker or residual current circuit breaker according to the Preamble of claim 1.
  • Multi-pole circuit breakers are generally designed so that each pole is a complete single-pole circuit breaker, each with a tripping unit electromagnetic and thermal triggers, one switch lock each with a latching point and with an actuator coupled to it and one contact device each, has an arcing chamber and terminals.
  • the individual circuit breaker poles are strung together and by means of screw or rivet connections that cross the housing Reach through rows, firmly connected.
  • the object of the invention is an installation switching device of the type mentioned, in particular a multi-pole circuit breaker or residual current circuit breaker, to create, which is simplified in structure.
  • the multi-pole installation switching device a single actuator and a single, a latch having switch lock that is common to all triggers Transmission link is unlatched.
  • Such an installation switching device is then installed in a single housing, with the contact points for each pole Arcing chambers and the release unit, but only one for all poles Switch lock and a single actuator are available. This can be a such switching device can be manufactured much easier.
  • the installation switching device has a rotatably mounted contact shaft on which one corresponds to the number of poles Number of contact levers is stored; with the key switch is a coupling element connected, which is coupled to the contact shaft, so that when unlatching Contact shaft is rotated with the contact levers in the switch-off position.
  • the contact shaft can be divided in one piece or in several pieces; then there would be between the contact shaft parts
  • One coupling element each is provided so that the individual shaft pieces are coupled as uniform contact shafts and are like a one-piece Turn the contact shaft. So that the contact levers are each in an associated contact shaft piece stored.
  • the coupling element against one Approach on the actuating element presses, and supports it there, whereby a kind Interlocking point is formed.
  • the actuating element is also a Trigger lever mounted with one of the electromagnets and thermal triggers actuatable impact lever cooperates and with which the pawl the latching point forms.
  • a further advantageous embodiment of the invention can be that the release lever is a double arm lever, one arm of which can be driven by the impact lever and on the other arm the pawl lies to form the latching point.
  • a stop is provided between the pawl and the push button, against which the coupling element bears when switched on.
  • the latching element has a latching lever or a Locking arm with a vertically extending nose, which around an axis, the runs perpendicular to the sliding surface planes, swiveling and in the same axis slidable against the pressure of a spring by the movable contact lever and so that it can be pushed off the sliding surfaces.
  • the latching lever is on one rotatably mounted retaining pin which resiliently presses against it, so that which is resiliently pressed against the sliding surfaces, and on the front side of which the contact lever, on which the movable contact piece is attached, presses. Still is the latching lever is resiliently urged so that the holding pin Nose from the first sliding surface securely into the rest bag and then back into the second Sliding surface is pressed, or in the case of a free release directly from the first sliding surface is moved over the partition to the second. Both spring forces or effects can be generated by a single spring.
  • a so-called free release position is of particular importance; must be in this position ensure that when switching on, for example, for a short circuit or an overcurrent of the locking levers with the locking lug does not get into the locking bag, but can immediately get back into the second sliding surface so that the installation device cannot be switched on; this is done by the fact that the contact lever the locking lever can be pushed off the first sliding surface, so that due to the spring that acts on the locking lever, the locking lever on the Partition between the two sliding surfaces reaches the second sliding surface.
  • the push button does not occupy intermediate positions (e.g. when welding of the contact pieces).
  • circuit breaker according to FIG. 1, which has the reference number 10 in its entirety is only with respect to the components switch lock, actuating element, thermal and magnetic release and contact point shown. Terminals and the extinguishing chamber are not shown for the sake of simplicity.
  • the circuit breaker has a housing 11 in which, depending on the number of poles, several at least two contact points (see below) are used.
  • the housing 11 has the usual outer contour for miniature circuit breakers with a front side 12, from which protrudes an actuating element designed as a push button 13; the Front wall 12 is aligned parallel to the floor surface, which in a known, here, however, not shown, a recess for snapping onto a top-hat rail having.
  • Two side wall sections run perpendicular to the front wall 14 and 15, the one running parallel to the bottom wall or to the front wall Pass over wall sections 16 and 17 which have openings, not shown, through which the clamping screws of connection terminals are accessible.
  • the longer web 28 of the striking lever runs parallel to the web 21 and overlaps it, whereas the short web 29 in the same direction projecting from the longer web 28, like the leg 23, is the axis of rotation 26 wearing.
  • the striker 20 is designed or arranged so that it against the longer Leg 28 of the striking lever 27 comes to rest and when triggered or Respond to this pivoted clockwise about its axis 26.
  • Extensions 30 are formed on the leg 24 and extend in the longitudinal direction of the coil 19 run and protrude beyond this, with a V-shaped support element on the tab 30 31 is attached, the two legs 32 and 33 parallel to the longitudinal axis the coil 19 run.
  • the leg 33 is attached to the tab 30 or molded thereon and the leg 32 closer to the front wall 12 carries a thermal Trigger 34 in the form of a thermal bimetal.
  • the thermo bimetal is thus on the bar 32 34 clamped.
  • An adjustment screw extends perpendicularly through the leg 32 35 that bear against the inner surface of the other leg 33 comes; when turning the adjusting screw 35, the distance between the two legs 32 and 33 and thus the position of the bimetallic 34 can be adjusted or adjusted.
  • the bimetallic strip 34 runs parallel to the longitudinal axis of the coil 19 and projects above it Bridge 21.
  • a trigger lever 36 is rotatably mounted on the bracket 30 via an axis of rotation 37, which rests with a nose 38 against the bimetal 34 on the side into which deflects the bimetal 34.
  • a projection 39 is concealed connected to the axis 37, so when the lever 36 rotates counterclockwise is that the bimetal 34 presses against the nose 38, the projection 39 against strikes a shoulder 40 which is integrally formed on the leg 28 so that when twisted of the trigger lever 36 over the projection 39 of the striking lever 27 in a clockwise direction is rotated about the axis 26.
  • the push button 13 is guided in the front wall 12, the movement of the push button 13 extends perpendicular to the front wall 12.
  • the push button 13 has a cylindrical Section 42, in which a blind hole 43 from that of the pressing surface 44th opposite side is introduced; is located in this blind hole 43 a compression spring 45.
  • a projection 48 is formed on the push button 13 in the direction of the actuation movement, on which a double arm lever 50 is articulated via a pivot 49, which is approximately L-shaped and with an arm 51 against the outer surface of the Leg 28 abuts, whereas a recess 53 is provided on the other arm 52 , whereby an edge 54 is formed, against which a nose 56 of the pawl 47 rests; the nose 56 forms a latching point with the edge 54.
  • a contact surface 57 is formed on the projection or arm 48, against which of a spring arranged on the contact lever 54 (not shown) a leg 59 of a Transfer bracket 60 is pressed and held by a pressure surface 58; of the Transmission bracket 60 is one with the other leg 61 with the lever arm 62
  • Contact carrier 63 connected in which a contact lever 64 with the movable contact piece 65 is rotatably mounted.
  • the contact lever 64 also has the Contact point opposite side an actuating arm 66 which, as below is shown, when triggered against the pin 67 of a latch arm 68, so that the locking arm 68 in the drawing Fig. 1 are moved to the left can.
  • the movable contact piece 65 interacts with a fixed contact piece 69.
  • FIG. 2 this arrangement differs only in the fixation and adjustment of the bimetallic strip from the arrangement according to FIG. 1, see below.
  • On the push button 13 is also a sliding surface 70 (see formed below, which for locking a nose 71 formed on the locking lever 68 serves.
  • This sliding surface 70 is a closed sliding surface on which the nose 71 when Push in and let go.
  • the nose 71 comes behind a rest bag on the partition that is inside the closed sliding surface lies so that the push button 13 is held in its pressed position.
  • the push button 13 At pressing the nose 71 out of the rest bag and the push button 13 can go back to its popped position, see also below; based 7 and the following, this is explained in more detail.
  • a magnetic release 70 is provided, the Yoke 71a is a shorter leg corresponding to leg 23 of FIG. 1 72 has; the other leg 73 is longer and projects beyond the coil 74; at the free end of the longer leg 73 an offset 75 is provided on the the bimetal 34 is attached.
  • the remaining Elements correspond to those of Fig. 1.
  • a recess 82 is made through which a coupling strip (Not shown) can be inserted with which the striking lever 27 adjacent triggers are coupled. If two or more poles Miniature circuit breakers are formed, then of course one of the number number of electromagnetic and thermal triggers corresponding to the pole available. In addition, there is also a contact carrier 63, one of the number the pole carries a corresponding number of contact levers. That with multi-pole Design also a number of terminals corresponding to the number of poles and provided by quenching chambers is a matter of course.
  • the striker pin 20 moved out of the coil 19 to the left and there meets the leg 28 of the striking lever 27 and rotates it about its axis 26.
  • the leg 28 lies against the Arm 51 of the release lever 50 and pivots it counterclockwise, the other arm 52 is released from the latch 56 of the latch; this can change pivot clockwise about axis 46 and release the bracket 60 so that the leg 59 of the bracket can slide in a slot 95 on the projection 48; this allows the contact carrier 63 to pivot counterclockwise, so that the switch goes into the open position.
  • the impact is the striker 20 over the leg 28 so that the leg 28 against the lever or strikes against the projection 66 of the contact lever and so regardless of the unlatching of the latching point 54, 56 opens the contact lever.
  • FIG. 4 The mode of operation of the thermal release is shown in FIG. 4. Due to an overcurrent as can be seen, the bimetallic 34 bends counterclockwise and pivots the arm 81 and over the arm 81 and the projection 81a, the corresponds to the projection 39, the striking lever 27, which is clockwise around the Axis 26 pivots, causing the trigger lever 50 counterclockwise is pivoted, whereby the latching point 56, 54 is unlatched; if the Moves bracket 60 upward in slot 95, the contact lever 64 can be in the off position go.
  • Fig. 5 the off position is shown.
  • the push button 13 After opening the contact point 65, 69 and after shifting the locking arm 68 all the way to the left, the push button 13 can be moved out of its position ON “in its position OFF "and thereby the leg 59 of the bracket 60 comes behind its stop point 57; the pawl can move from the position shown in FIG. 4 back to its original position, since it no longer moves to the left through the leg 59 sliding behind the contact surface 57 is held so that the nose 56 can get back into its latching point
  • the jumped-out position of the push button 13, which occurs under the pressure of a spring, not shown, also corresponds to the switched-off position of the movable contact piece.
  • Fig. 6 shows the so-called free release position, which is a release when pressed and held Push button allows.
  • the locking arm 68 is pressed out of the push button.
  • FIGS. 7 to 19 in which the shape of the push button 13 in connection with the circuit breaker of the circuit breaker according to 1 to 6 is shown.
  • the shape of the above-mentioned sliding surfaces and the mode of action are explained in more detail.
  • a push button 13 of FIG. 7 comprises a cylindrical section 43, the invisible surface (at 44) in the drawing which has a pressing surface.
  • a first projection 114 and a second projection 115 adjoin the opposite circular surface 113 of the cylindrical section, said projection having an approximately rectangular shape and on which a sliding surface arrangement 116 is provided on one of the broad sides.
  • the sliding surface arrangement 116 (corresponds to the sliding surface 70 of FIG. 2) has a first sliding surface 117 which runs approximately parallel to the direction of movement of the push button 13 and a second sliding surface 118 which runs parallel to it, in its area on the pressure surface side via a connection point 119 and also via a connection surface away from the pressure surface 120 are connected.
  • both sliding surfaces 117 and 118 are at different distances: the first sliding surface rises slightly from the connection point 120 to one in the area of the connection point 119 located saddle surface 121, which drops to the actual connection point 119 via a step 122. Via a further step 123, the connecting point 119 drops to the second sliding surface 118, which rises up to the connecting point 120 with respect to this reference plane, so that a third step 124 is provided at the connecting point 120 between the second sliding surface and the first sliding surface the second sliding surface drops to the first sliding surface 117.
  • connection point 119 Between the sliding surfaces 118 and 117 there is a dividing wall 125, which is provided with a latching bag 126 on the connection point 119, that is to say the connection point 119 close to the pressing surface. If a fixed nose that only rests transversely to the sliding surfaces 117 and 118 slides along the sliding surfaces 117 and 118, then it first slides in the direction of the arrow P 1 (relative movement) on the sliding surface 117 upwards to the saddle surface 121 and slips from there over the step 122 on the connection point 119 and behind the rest bag 126, whereby the push button 13 is held in the pressed-in position.
  • the connection point 119 of the two sliding surfaces 117 and 118 is closed at the top, i.e.
  • step 127 running perpendicular to it, which extends at an angle of 45 ° to the direction of movement of the push button and merges into step 122, the step 127 or boundary wall 127 runs parallel to the V-surface 128 of the rest bag 126 adjacent to the slideway 118. If the push button 13 is pushed in further, the locking lug moves in the direction of the arrow P 2 and is deflected via the step 127 and the further step 123 towards the second sliding surface 118 and then slides on the second sliding surface when the push button slides up again 118 to the second connection point 120 and snaps back onto the first slideway 117 via the step 124.
  • the latching nose is therefore guided on the one hand by the partition 125, the step 127 and a boundary wall 129 running parallel to the partition 125, between which the second sliding surface 118 runs.
  • the boundary wall 129 has in the area of the connection point 120 an arc 130 inclined towards the sliding surface 117.
  • the locking lug is guided between the boundary wall 129 with the arch 130 and the partition 125 on the sliding surface 118.
  • the locking element thus makes a movement perpendicular to the reference plane and also a rotation about an axis of rotation that is perpendicular runs to the reference plane.
  • the arm 48 adjoins the first projection 114, on which the arm perpendicular thereto and Pin 48 extending perpendicular to the direction of movement of the push button 13 connects (see below).
  • the projection 115 there is an axially extending one Bore 133, in which a compression spring is arranged (not shown), the Push button 13 continuously upwards.
  • the indentation movement is the movement in Arrow direction E and the push-out movement is the movement according to arrow direction A.
  • the movement E takes place manually and the movement A due to the in the bore 133 located compression spring.
  • This locking element 134 has one Nose 135, which corresponds to the nose 71 of FIG. 2 and on which approximately parallel to the direction of movement of the push button 13 extending arm 68 is formed, which with the transverse bolt 67 is connected; the pin 67 is in its axial direction slidable so that the arm 68 is slidable; furthermore is the Bolt 67 also rotatable about its longitudinal axis so that arm 68 about the bolt axis 67 is pivotable.
  • a spring 67a (FIGS.
  • FIG. 8 and 9 show the arrangements in the off position, that is, if Push button 13 completely protrudes from the switching device.
  • the detent 135 is located itself at the connection point 120.
  • the movable contact piece 65 is in its OFF position.
  • push button 13 is pressed in the direction of arrow E, whereby via the bracket 60 (Fig. 1) and the contact shaft 13 of the movable contact lever 64 comes into contact with a fixed contact piece 69.
  • the Locking element 135 is still on the sliding surface 117 at a certain distance to the connection point 119. If the push button 13 is pushed in further, then, due to the rotational action of the spring 67a, the locking lug 135 in the area of the Snap connection point 119 into the rest bag 126; it can be seen in Fig.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Breakers (AREA)
EP97121619A 1996-12-20 1997-12-09 Appareil de coupure pour une installation électrique Expired - Lifetime EP0849759B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19653266 1996-12-20
DE19653266A DE19653266A1 (de) 1996-12-20 1996-12-20 Installationsschaltgerät

Publications (2)

Publication Number Publication Date
EP0849759A1 true EP0849759A1 (fr) 1998-06-24
EP0849759B1 EP0849759B1 (fr) 2002-10-23

Family

ID=7815512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121619A Expired - Lifetime EP0849759B1 (fr) 1996-12-20 1997-12-09 Appareil de coupure pour une installation électrique

Country Status (3)

Country Link
EP (1) EP0849759B1 (fr)
AT (1) ATE226755T1 (fr)
DE (2) DE19653266A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2147158A1 (es) * 1998-12-30 2000-08-16 Power Controls Iberica Sl Perfeccionamientos en los disyuntores automaticos de escape a tierra.
WO2021093879A1 (fr) * 2019-11-15 2021-05-20 浙江正泰电器股份有限公司 Disjoncteur enfichable
WO2021093875A1 (fr) * 2019-11-15 2021-05-20 浙江正泰电器股份有限公司 Disjoncteur enfichable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10034362A1 (de) * 2000-07-14 2002-01-24 Abb Patent Gmbh Leitungsschutz- oder Fehlerstromschutzschalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963947A (fr) * 1947-09-16 1950-07-26
FR1522529A (fr) * 1967-03-17 1968-04-26 Financ Ind Et Commerciale Pour Perfectionnements aux interrupteurs électriques
DE2417330A1 (de) * 1974-04-09 1975-11-06 Mecanismos Aux Ind Umschalter
EP0619590A1 (fr) * 1993-04-07 1994-10-12 Schneider Electric Sa Disjoncteur multipolaire à assemblage modulaire
EP0747915A1 (fr) * 1995-06-06 1996-12-11 SIGNAL LUX S.p.A. Interrupteur de sécurité, notamment pour des appareils électroménagers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE631616A (fr) * 1962-04-28
DE1588113B2 (de) * 1967-09-09 1976-07-29 Condor-Werk Gebr. Frede Kg, Elektro- Und Maschinenfabrik, 4415 Westkirchen Installations-vollschutzschalter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963947A (fr) * 1947-09-16 1950-07-26
FR1522529A (fr) * 1967-03-17 1968-04-26 Financ Ind Et Commerciale Pour Perfectionnements aux interrupteurs électriques
DE2417330A1 (de) * 1974-04-09 1975-11-06 Mecanismos Aux Ind Umschalter
EP0619590A1 (fr) * 1993-04-07 1994-10-12 Schneider Electric Sa Disjoncteur multipolaire à assemblage modulaire
EP0747915A1 (fr) * 1995-06-06 1996-12-11 SIGNAL LUX S.p.A. Interrupteur de sécurité, notamment pour des appareils électroménagers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2147158A1 (es) * 1998-12-30 2000-08-16 Power Controls Iberica Sl Perfeccionamientos en los disyuntores automaticos de escape a tierra.
WO2021093879A1 (fr) * 2019-11-15 2021-05-20 浙江正泰电器股份有限公司 Disjoncteur enfichable
WO2021093875A1 (fr) * 2019-11-15 2021-05-20 浙江正泰电器股份有限公司 Disjoncteur enfichable
US11972919B2 (en) 2019-11-15 2024-04-30 Zhejiang Chint Electrics Co., Ltd. Plug-in circuit breaker
US12014891B2 (en) 2019-11-15 2024-06-18 Zhejiang Chint Electrics Co., Ltd. Plug-in circuit breaker

Also Published As

Publication number Publication date
ATE226755T1 (de) 2002-11-15
DE59708554D1 (de) 2002-11-28
DE19653266A1 (de) 1998-06-25
EP0849759B1 (fr) 2002-10-23

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