EP0412953B1 - Interrupteur de protection de ligne - Google Patents

Interrupteur de protection de ligne Download PDF

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Publication number
EP0412953B1
EP0412953B1 EP90890212A EP90890212A EP0412953B1 EP 0412953 B1 EP0412953 B1 EP 0412953B1 EP 90890212 A EP90890212 A EP 90890212A EP 90890212 A EP90890212 A EP 90890212A EP 0412953 B1 EP0412953 B1 EP 0412953B1
Authority
EP
European Patent Office
Prior art keywords
ratchet
switching bridge
cut
housing
out switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90890212A
Other languages
German (de)
English (en)
Other versions
EP0412953A3 (en
EP0412953A2 (fr
Inventor
Adolf Tetik
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.)
Felten & Guilleaume Fabrik Elektrischer Apparate A
Original Assignee
Felten & Guilleaume Fabrik Elektrischer Apparate AG
Felten and Guilleaume Austria AG
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 Felten & Guilleaume Fabrik Elektrischer Apparate AG, Felten and Guilleaume Austria AG filed Critical Felten & Guilleaume Fabrik Elektrischer Apparate AG
Publication of EP0412953A2 publication Critical patent/EP0412953A2/fr
Publication of EP0412953A3 publication Critical patent/EP0412953A3/de
Application granted granted Critical
Publication of EP0412953B1 publication Critical patent/EP0412953B1/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
    • 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
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Definitions

  • the invention relates to a circuit breaker with a trigger mechanism which can be triggered by a magnetic release (51) and a bimetallic release (41) for a switching bridge (5) in the housing (1) of the circuit breaker, which extends around a preferably slot-shaped opening (86) in the switching bridge ( 5) engaging bearing pin (4) is pivotally mounted, and which is under the action of a tension spring (16), with a pawl (6) pivotable about the bearing pin (4) of the switching bridge (5) and with an actuating button (20) which the switching bridge (5) can be moved into its on position, which is in contact with the contact (48) on a contact carrier (49) fixed to the housing, and back again into its off position, the actuating button (20) being connected to the switching bridge (5) by a push rod (25), in particular a bow-shaped thrust link, is coupled, the end (26) of the thrust link (25) facing the pawl (6) in a mouth (9), the opening of which is from the bearing pin (4) the switching bridge (5) away, and which is limited
  • Such a circuit breaker is known from DE-A 35 20 905.
  • the mouth for the one end of the push rod is on the side facing the actuating button from the pawl and on the other side bounded by the movable switching bridge.
  • the switching bridge and the pawl can be pivoted in the housing of the known circuit breaker around a common bearing pin, a spring being provided which loads the pawl in the sense of reducing the width of the opening of the mouth between the movable switching bridge and the pawl.
  • the movable switching bridge is loaded by a tension spring supported in the housing in the sense of pivoting into the off position. It is disadvantageous in this embodiment that the thrust link must overcome the entire force exerted by the tension spring in order to pivot the switching bridge into the on position and to hold it in this on position.
  • the pawl is pivoted in the event of a trip either by the plunger of the magnetic release or by the bimetallic release in the sense of increasing the width of the opening of the mouth, so that the end of the thrust link initially received in the mouth slides out of the mouth and the movable switching bridge is pivoted into the off position by the tension spring.
  • a baffle is provided on the housing or a push-back stop surface is provided at the end of the movable switching bridge adjacent to the mouth, through which the free End of the push rod is to be pushed back into the mouth when the actuating button is pivoted into its position corresponding to the off position.
  • a circuit breaker with a pair of contacts and with an actuating mechanism known for a movable switching bridge.
  • a locking lever is provided which is pivotable relative to the movable switching bridge, the movable switching bridge having a locking surface and the pivoting locking lever having a curved locking end, which together form a mouth for the bent end of a push link which is connected to its other end an actuating button which can be pivoted in the housing of the circuit breaker is coupled.
  • the locking lever is pivoted relative to the switching bridge, so that the mouth opens for the end of the push rod and the movable switching bridge is pivoted away from the fixed contact with the aid of a spring.
  • a disadvantage of this known embodiment of a circuit breaker is that, as in the circuit breaker known from DE-A 3 520 905, the contact pressure is a direct function of the length of the push rod, so that no compensation of the necessary contact pressure after repeated actuation of the Circuit breaker occurring contact erosion is possible.
  • the circuit breaker known from DE-A 2 933 767 has a switching bridge which is pivotally supported in the housing at one end with lateral play and which is pressed by a compression spring into the off position, ie away from the fixed contact.
  • a two-armed clamping lever is pivotally mounted in the housing of the known circuit breaker, one end of which rests on the movable switching bridge and the other end together with a latching lever which is in the Housing is pivoted about the same axis as the clamping lever, forms an openable mouth for a push rod.
  • the push rod is connected at its other end to an operating button.
  • the other end of the latch lever opposite the mouth is the magnetic release and the bimetal release assigned.
  • the latching lever is pivoted in such a way that the mouth formed between the tensioning lever and the latching lever is opened, so that the end of the push rod received in the mouth is released and the compression spring pivots the switching bridge thus released into its off position.
  • the latching lever is under the action of a spring, which loads it in the sense of reducing the width of the opening of the mouth, which is reduced by a bend provided on the end of the latching lever that delimits the mouth on one side.
  • a disadvantage of this circuit breaker is that separate bearings for the switching bridge on the one hand and on the other hand for the latching lever and the tensioning lever are provided, which complicates not only the construction but also the assembly of the circuit breaker.
  • the circuit breaker known from DE-A 2 943 696 has a switching bridge pivotally mounted in the housing with lateral play on a bearing pin and a switching pawl pivotably mounted about the same bearing pin.
  • the switching bridge and the pawl together form a mouth for one end of a push link, which is coupled at its other end to an actuating button.
  • the switching bridge In the on position, the switching bridge is pressed against the fixed contact by the push rod against the action of a leg spring which is assigned to the switching bridge.
  • the pawl has an extension which is assigned to the plunger of the magnetic release.
  • An additional clutch lever is provided for the bimetallic release, which is pivoted by the bimetallic strip in the event of release.
  • a cam provided on the clutch lever engages an extension of the pawl and pivots the latter under opening of the mouth.
  • the pawl is assigned a tension spring supported in the housing, which pulls it into its mouth-closing position.
  • the actuation button is under the action of a tension spring which pivots the actuation button into its pivot position corresponding to the off position, so that the end of the push lever is pulled into the mouth is, the switching bridge and the pawl temporarily pivot apart against the action of the spring associated with the pawl.
  • a coupling pin can be used in the cam of the coupling lever, through which the switching mechanism can be coupled with the switching mechanism of an adjacent circuit breaker.
  • a disadvantage of this embodiment of a circuit breaker is not only the large number of bearings and springs - a spring must also be assigned to the clutch lever - but also that the bimetallic release only acts indirectly on the pawl, namely via the clutch lever.
  • a mouth that can be opened under the action of a magnetic release and a bimetallic release for a push rod between two parts pivotably mounted in the housing of the switch is implemented in the circuit breaker in CH-C 586 461.
  • the swivel part assigned to the plunger of the magnetic release and coupled to the bimetallic release via a pull lever which is displaceably guided in a guide in the housing is under the action of a spring which loads it in relation to the other swivel part in the sense of reducing the size of the mouth.
  • the thrust link In order to pull the end of the thrust link assigned to the mouth back into the mouth after triggering, the thrust link is one Tension spring assigned.
  • One of the two swivel parts of this known circuit breaker interacts with a compression spring which is inserted over a guide bracket connected to the switching bridge. When this pivoting part is pivoted, the spring is compressed so that the movable switching bridge tilts into the on position.
  • the movable switching bridge is pivotally mounted on a carrier, which in turn is pivotally mounted in the housing. Between the carrier and a hook-shaped sheet metal part, which is movably held by a pawl pivotably mounted on the carrier, a mouth is provided for a push link coupled to the actuating button. The movable switching bridge can thus be moved into its on position by pivoting the actuating button.
  • the construction of this known circuit breaker is complicated insofar as the pawl, to which the magnetic release and a pull lever of the bimetallic release is assigned, does not limit the receptacle for the push rod directly, but via a hook-shaped sheet metal part that is movably connected to it.
  • the bimetallic strip is attached to a carrier inserted into the housing and connected to the associated terminal.
  • the support is assigned an adjusting screw which is screwed into a nut inserted in the housing. Since the carrier for the bimetallic strip is held by the contact terminal assigned to it, there is a risk that the adjustment of the bimetallic release will be changed unintentionally when the circuit breaker is manipulated when the line circuit breaker is installed.
  • the invention is based on the object, while maintaining a known basic principle, namely the coupling of the actuating button with the movable switching bridge via a thrust link received at one end in a mouth, both to simplify and improve the triggering process and to simplify the assembly of the circuit breaker .
  • the switching bridge Due to the construction of the circuit breaker proposed according to the invention, the switching bridge is mounted with play on the bearing pin fixed to the housing. Therefore, the switching bridge is first moved to the on position by a pivoting movement around the bearing pin. As soon as the contacts touch each other, the switching bridge pivots around the fixed point formed by the contact fixed to the housing. With continued movement of the thrust link, the pawl support is pivoted relative to the movable switching bridge around the bearing connecting these components. This results in a favorable sequence of movements when switching on and when triggered. Furthermore, the actuating mechanism is less stressed overall.
  • a sleeve which is preferably designed as a tubular rivet, is received in the bearing bores of the pawl support and pawl, which extends through the bearing slot of the switching bridge, and that the housing-fixed bearing pin of the switching bridge engages in the sleeve.
  • This embodiment of the circuit breaker according to the invention has the advantage that the jack support, the pawl and the switching bridge can be combined to form an assembly - this can be done by a machine - before they are inserted into the circuit breaker and that the insertion of this assembly into the circuit breaker is also from a machine can be executed.
  • the sleeve which e.g. a tubular rivet is, instead of the bearing bolt fixed to the housing, the limitation of the pivoting range of the pawl support relative to the switching bridge, since this penetrates the slot of the switching bridge.
  • the movements of the switching bridge relative to the pawl support when pivoting from the off position to the on position are particularly favorable if, according to a proposal of the invention, it is provided that the Bearing slot in the switching bridge following the arc of a circle, the center of which lies in the pivot axis of the pawl support on the switching bridge, is curved.
  • the pawl in its area opposite the plunger of the magnetic release has an extension pointing towards the switching bridge.
  • This embodiment has the advantage that the movement of the plunger of the magnetic release not only opens the mouth and thus triggers the trip, but also supports the movement of the contact of the movable switching bridge away from the contact of the contact carrier fixed to the housing, since the projection under the action of the plunger Magnetic release acts in the sense of an opening movement on the switching bridge, because after the release current continues to flow until the arc is extinguished.
  • a stop surface is provided on the actuating button, which rests on the opposite side of the mouth on the push rod when the end of the Push rod is received in the mouth and the switching bridge is in the off position, and that the actuating button is loaded by its spring in the direction that corresponds to the movement of the end of the push rod in the mouth.
  • the thrust link is pressed into the mouth by the stop surface provided on the actuating button while the actuating button is moved back into its rotational position corresponding to the off position, the pawl being initially opposite the action of the spring loading it in the sense of increasing the width the opening of the mouth and then like under the action of the spring which swivels into the position in which the end of the thrust link is held in its mouth.
  • Additional guide surfaces such as in DE-A 35 20 905 or separate springs loading the push rod, are therefore unnecessary, and an automatic coupling of the push rod with the assembly consisting of a pawl, pawl support and movable switching bridge is nevertheless achieved.
  • the pawl support is U-shaped, that the web forms a stop assigned to the pawl and that the bearing openings are provided in the legs for the storage of the pawl support on the switching bridge.
  • the bearing forces are distributed symmetrically on both sides of the movable switching bridge.
  • An embodiment of the circuit breaker according to the invention acts in the same sense, in which it is provided that the pawl, which has an essentially U-shaped cross section, has guide lugs which rest on the outer sides of the legs of the pawl support.
  • An also technically advantageous embodiment of the circuit breaker according to the invention is characterized in that the spring associated with the pawl rests with one leg on an abutment of the pawl and with its other leg against an upstanding tongue of the pawl support, and that the spring with its at least one helical turn having middle part sits on a pin concentric to the bearing opening of the pawl.
  • the bimetallic strip of the bimetallic release is fastened to a support fixed in the housing without play and that the switching bridge is in its off position on the support of the bimetallic strip.
  • the backlash-free fit of the carrier for the bimetal strip in the circuit breaker according to the invention is achieved particularly easily if the carrier of the bimetal strip has a tab in which at least two openings are provided, and that at least two truncated-cone-shaped pins protrude into the openings of the carrier .
  • an adjusting screw is assigned to the end of the carrier for the bimetal strip connected to the bimetal strip, which screw is screwed into a nut inserted into the housing.
  • this embodiment has the advantage that the In the case of a circuit breaker according to DE-A 35 20 905, an adjustment screw provided at the free end of the bimetal strip, the operation of which causes difficulties, is unnecessary.
  • the transmission of the movement of the bimetallic strip to the pawl for triggering is particularly simple if, according to a proposal of the invention, it is provided that the bimetallic strip is coupled to the pawl via a preferably bow-shaped pull lever.
  • the pull lever assigned to the bimetallic strip is slidably guided in a slot-shaped guide provided in the housing.
  • the guidance necessary for the pull lever is achieved in a particularly simple manner, since the guidance is provided in the housing or more precisely in one half of the housing and is designed in the form of a slot.
  • the construction of the circuit breaker according to the invention can also be developed in the direction which allows the circuit breaker to be coupled to further circuit breakers for all-pole disconnection if the conditions required for tripping occur in only one conductor.
  • circuit breakers can be coupled together, so that when a switch is triggered by the bimetal release or the magnetic release, the other two switches are also triggered by pivoting their pawls.
  • the slot-like design of one of the two recesses ensures that the pawl in the switch that triggers first can pivot without moving the pawl in the next switch, which is particularly important in the initial stage of the triggering movement.
  • the aforementioned embodiment of the circuit breaker according to the invention also has the effect that when arc-shaped slots are formed instead of rectangular openings, the cross section for the passage openings provided in the housing of coupling pins is smaller, so that increased gas tightness is achieved. This gas tightness is essential insofar as the transfer of ionized gas, which is formed during all switching operations, is reduced considerably from one switching path to the other.
  • the miniature circuit breaker according to the invention can also be equipped with a contact position indicator thanks to its jack support.
  • the pawl support has an eye into which the actuating pin of a contact position indicator engages, which is pivotally mounted in the housing, and whose display surfaces are assigned to an opening in the housing.
  • a jump switch can also be implemented on the circuit breaker according to the invention.
  • the part of the actuating button which is coupled to the push rod is coupled to the part of the actuating lever which has the actuating lever by means of a spring accumulator, that the part of the actuating button which is coupled to the push rod has a projection which on a nose according to a predetermined pivoting angle of the actuating button a pawl mounted pivotably in the housing and standing under the action of a spring comes up so that the thrust link stops when the actuating lever is pivoted further, and that a cam is provided on the part of the actuating button with the actuating lever which essentially completely Position flipped actuating lever pivoted against the action of the spring loading them to move the nose out of engagement with the projection, so that the thrust link jumps the spring bridge into the on position with relaxation of the spring accumulator emotional.
  • a circuit breaker shown in Fig. 1 is housed in a housing 1, of which only the lower shell is visible in Fig. 1, since the upper shell is removed.
  • the usual terminals 2 and 3 are used for connecting the conductor to be protected to the circuit breaker.
  • An assembly consisting of a movable switching bridge 5, pawl 6 and pawl support 7 is pivotally mounted in the circuit breaker about a bearing pin 4.
  • the pawl support 7 is pivoted by a leg spring 8 with respect to the pawl 6 such that the width of the opening of a mouth 9, which is formed between the pawl 6 and the pawl support 7, is reduced.
  • the spring 8 is placed with a plurality of turns over a pin 10, and rests with its one leg 11 on an abutment 12 of the pawl 6 and with its other leg 13 on a bent tongue 14 of the pawl support 7.
  • the pawl support 7 is pivotally connected to the movable switching bridge 5 by a bearing formed by a tubular rivet 15.
  • the movable switching bridge 5 is loaded by a tension spring 16 which acts on a bent hook 17 of the switching bridge 5.
  • actuating button 20 with an actuating lever 21 which is pivotably mounted about a pin 22 fixed to the housing, and by a spring 23 (only the ends of which are visible in FIG. 1) in the sense of a clockwise pivoting, i.e. is loaded in the sense of a pivoting into the off position shown in FIG. 1.
  • a hole 24 is provided in the actuation button 20, into which the one bent leg of a U-shaped thrust link 25, which is designed, for example, as a wire bracket, engages.
  • the bent leg 26 provided at the other end of the push rod 25 is accommodated in the mouth 9 between the pawl 6 and the pawl support 7 in the position of the circuit breaker shown in FIG. 1 and is in this by the projection 27 which reduces the width of the opening of the mouth 9 on an approach 28 the jack 6 held. It can be seen that the width of the opening of the mouth 9 is increased by pivoting the pawl 6 counterclockwise relative to the pawl support 7, so that the leg 26 can slide out of the mouth 9.
  • a stop surface 29 is provided on the actuating button 20, on which the web of the push rod 25 rests when it is arranged with its leg 26 in the receptacle 9 and the switching bridge 5 is in the off position shown in FIG. 1.
  • the pawl support 7 is equipped with an eye 30 which has an arcuate recess.
  • a control pin 31 of a contact position indicator 32 engages in the recess and can be pivoted about an axis 33 fixed to the housing such that, depending on the position of the movable switching bridge 5, one of the two correspondingly colored sections of the contact position indicator 32 is visible from the outside through a window 34 in the housing 1 is.
  • the movable switching bridge 5 is connected to the bimetallic strip 41 via a flexible conductor cable 40.
  • the bimetallic strip 41 is connected to a carrier 42 at its other end.
  • the carrier 42 has a tab 43 in which two openings 44 are provided. In the openings 44, upwardly tapering, conical pins 45, which extend from the bottom of the lower shell of the housing 1, engage, so that the carrier 42 is fixed via its tab 43 without play in the housing 1.
  • the secure, play-free fit of the carrier 42 for the bimetallic strip 41 is achieved without special measures only by simply pressing the tab 43 onto the conical pin 45.
  • the contact 47 of the movable switching bridge 5 is assigned a contact 48 on a contact carrier 49 which is stationary in the housing.
  • the contact carrier 49 is electrically conductively connected via a coil 50 of the magnetic release 51 to the second terminal 3 of the circuit breaker.
  • the magnetic release 51 has a conventional structure with a yoke sleeve 52, armature 53, plunger 54 and plunger spring 55.
  • a sheet metal strip serving as a stop 60 for the movable switching bridge 5 in its off position is connected, which leads to an arc extinguishing chamber 61 in which deionized sheets 63 are accommodated.
  • the beginning of the arc quenching chamber 61 is covered on both sides opposite the side housing walls by ceramic plates (not shown).
  • the latter In order to pivot the pawl 6 in relation to the pawl support 7 in the event of a release, the latter has an extension 65 facing the plunger 54 of the magnetic release 51.
  • An extension 66 extends from the extension 65 and points towards the movable switching bridge 5.
  • the bimetallic strip 41 is coupled to the pawl 6 by a U-shaped pull lever 67 which is guided in a guide groove 68 in the bottom of the lower shell of the housing 1.
  • One leg 69 of the pull lever 67 is assigned to the bimetallic strip 41, whereas the other leg 70 of the pull lever 67 is assigned to the arm 65 of the pawl 6.
  • the end of the carrier 42 for the bimetallic strip 41 to which the bimetallic strip 41 is attached is assigned an adjusting screw 75 which is screwed into a nut 76 which is inserted in the housing 1.
  • the adjusting screw 75 By turning the adjusting screw 75, the orientation of the bimetallic strip 41 with respect to the pull lever 67 can be changed and the bimetallic release can be adjusted.
  • Lugs 80 and 81 are formed on the pawl 6, which has a substantially U-shaped cross section.
  • the extension 81 has a hole 83 into which a coupling pin can be inserted, which engages through a circular opening in the wall of the housing 1 in the circular recess 82 in the extension 80 of the pawl 6 of an adjacent circuit breaker.
  • line circuit breakers arranged next to one another can be coupled to one another, the coupled pawl 6 being pivoted only after a predetermined pivoting of the pawl 6, in the extension 81 of which the coupling pin is inserted, because of the slot-shaped recess 82 in the projection 80.
  • the pawl 6 has an essentially U-shaped cross section, with guide projections 89 being provided on the webs, which are guided with their inner surfaces on the pawl support 7.
  • the pawl support 7 is, as shown in FIGS. 9 to 11, essentially U-shaped (FIG. 11) and consists of two legs 101 and 102 which are connected to one another by a web 103. An opening 104 is provided in each of the legs 101, 102, which serves to receive the tubular rivet 15, via which the pawl support 7 is pivotably mounted on the switching bridge 5. The pivotability of the pawl 6 relative to the pawl support 7 is limited by the web 103.
  • Fig. 9 is again the eye 30 for the actuation of the contact position indicator 32 and the tongue 14 on the the leg 13 of the spring 8 is supported to see.
  • the movable switching bridge 5 is made, for example, of a highly conductive copper alloy and carries the contact 47 at one end.
  • the hook 17 for the spring 16, which is made in one piece with the switching bridge 5, can also be seen in FIGS.
  • the switching bridge 5 has an opening 85 for receiving the tubular rivet 15, which pivotally connects the pawl support 7 to the switching bridge 5.
  • the opening 86 in the switching bridge 5 receiving the bearing pin 4 or the sleeve or the tubular rivet described below is designed as a slot which follows an arc whose center lies at the center of the opening 85.
  • the switching bridge 5 also has a flag 87 for connecting the conductor cable 40.
  • the actuating button 20 In the modified embodiment of the actuating button 20 shown in FIG. 12, a so-called snap-on switching is realized, in which the contacts 47 and 48 approach each other at the end of the switching-on process at a speed which is independent of how quickly the actuating lever 21 is pivoted.
  • the actuating button 20 consists of a part connected to the actuating lever 21 and a further part 90, on which the thrust link 25 engages, the two parts of the actuating button 20 being connected to one another via a spring accumulator (not shown).
  • a pawl 93 is provided, which is pivotally mounted about an axis 92 fixed to the housing, under the action of a compression spring 94 stands and which carries a nose 95 at its free end.
  • a control cam 96 is provided on the part of the actuation button 20 connected to the actuation lever 21.
  • the projection 91 runs on the nose 95 of the pawl 93 after a predetermined pivoting path of the actuating lever 21, so that, despite further pivoting of the actuating lever 21, the thrust link 25 is not moved further and the contacts 47 and 48 are no longer approximated.
  • the actuating lever 21 of the actuating button 20 is pivoted counterclockwise to switch on, so that the assembly of the pawl 6, pawl support 7 and movable switching bridge 5 - the three components mentioned are by one Tubular rivet which passes through the bearing openings of the above-mentioned components and which is then inserted over the bearing pin 4 fixed to the housing, combined to form a structural unit - is pivoted by the push rod 25 so that the contact 47 of the switching bridge 5 approaches the contact 48.
  • the tension spring 16 is tensioned.
  • the bore 24 in the actuating button 20 is located above the connecting line between the bearing pin 22 for the actuating button 20 and the receptacle 9 ("over-dead center position"), so that the assembly of the pawl 6, pawl support 7 and switching bridge 5 and the actuating button 20 remain in the positions corresponding to the on position despite the action of the springs 23 and 16.
  • the contact position indicator 32 is also rotated into its position indicating the on position.
  • the pawl 6 is pivoted, for example, by the plunger 54 of the magnetic trigger 51, so that the leg 26 of the push rod 25 slides out of the mouth 9, the opening width of which has now been enlarged, and the movable switching bridge 5 from the tension spring 16 into its in FIG 1 shown off position is pulled.
  • the movement of the switching bridge 5 is supported by the continued pressure of the plunger 54 on the arm 65, which is transmitted to the switching bridge 5 via the extension 66.
  • Analogous causes a release by the bimetallic release, since the pawl 6 from the bimetallic strip 41 via the pull lever 67, the leg 70 on the boom 65 of the Pawl 6 attacks, is pivoted with an increase in the width of the opening of the mouth 9 relative to the pawl support 7.
  • the leg 26 of the push rod 25 is automatically reinserted into the mouth 9 when the actuating button 20 is moved back into the position shown in FIG. 1 under the action of the spring 23, since the push rod 25 rests against the stop surface 29 of the actuating button 20 and therefore by the rotating actuating button 20 with its end 26 is forced into the mouth 9. Since the width of the opening of the mouth 9 is smaller than the diameter of the leg at the end 26 of the thrust link 25, the pawl 6 springs back against the action of the spring 8 when the end 26 enters the mouth 9 and then back into the position shown in FIG 1 shown locking position, so that the opening of the mouth 9 is so small that the leg 26 of the push rod 25 cannot come out of the mouth 9 the next time it is switched on.

Landscapes

  • Breakers (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Push-Button Switches (AREA)
  • Cookers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Centrifugal Separators (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Massaging Devices (AREA)
  • Vending Machines For Individual Products (AREA)
  • Thermally Actuated Switches (AREA)

Claims (18)

  1. Disjoncteur de protection de canalisation avec un mécanisme disjoncteur pouvant être déclenché par un déclencheur à aimant (51) et par un déclencheur à bilame (41) pour un pont de commutation (5) dans le carter (1) du disjoncteur de protection de canalisation, lequel pont est monté pivotant autour d'un axe de support (4) en prise dans une ouverture (86), de préférence en forme de fente, dans le pont de commutation (5) et se trouve sous l'action d'un ressort de traction (16), avec un levier à cliquet (6) pivotant autour de l'axe de support (4) du pont de commutation (5) et avec un bouton d'actionnement (20) par lequel le pont de commutation (5) est déplaçable dans sa position de marche en appui sur le contact (48) d'un porte-contact (49) fixe dans le carter et à nouveau dans sa position d'arrêt, le bouton d'actionnement (20) étant accouplé au pont de commutation (5) par une bielle de poussée (25), en particulier une bielle de poussée en forme d'étrier, l'extrémité (26) de la bielle de poussée (25) tournée vers le levier à cliquet (6) étant reçue dans une mâchoire (9) dont l'ouverture est dirigée à l'opposé de l'axe de support (4) du pont de commutation (5) et est limitée par le levier à cliquet (6) du côté tourné vers le bouton d'actionnement (20), une saillie (27) du levier à cliquet (6) étant disposée dans la région de la mâchoire (9) de telle manière que la largeur de l'ouverture de la mâchoire (9) peut être agrandie et diminuée par pivotement du levier à cliquet (6), un ressort (8) étant adjoint au levier à cliquet (6), qui charge le levier à cliquet (6) dans le sens d'une diminution de la largeur de l'ouverture de la mâchoire (9) et le levier à cliquet (6) étant entraîné en pivotement, dans le cas de déclenchement, par le déclencheur à aimant (51) ou le déclencheur à bilame (41) dans le sens d'un agrandissement de la largeur de l'ouverture de la mâchoire (9),
    caractérisé en ce que la mâchoire (9), pour recevoir l'extrémité (26) de la bielle de poussée (25) tournée vers le levier à cliquet (6), est limitée sur son côté écarté du bouton d'actionnement (20) sur un support de levier à cliquet (7) monté à pivotement limité sur le pont de commutation (5) et que le support de levier à cliquet (7) est monté pivotant dans le carter (1) autour de l'axe de support (4) du pont de commutation (5).
  2. Disjoncteur de protection de canalisation selon la revendication 1,
    caractérisé en ce qu'une douille, qui est de préférence réalisée sous forme d'un rivet tubulaire, est reçue dans les alésages de palier du support de levier à cliquet (7) et du levier à cliquet (6) et traverse la fente de palier (86) du pont de commutation (5) et que l'axe de support (4) du pont de commutation (5) fixe dans le carter vient en prise dans la douille.
  3. Disjoncteur de protection de canalisation selon la revendication 1 ou 2,
    caractérisé en ce que la fente de palier (86) dans le pont de commutation (5) est courbée en suivant dans le pont de commutation (5) l'arc d'un cercle dont le centre se trouve sur l'axe de pivotement (15) du support de levier à cliquet (7) sur le pont de commutation (5).
  4. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 3,
    caractérisé en ce que le levier à cliquet (6) présente, dans sa région se trouvant en regard du coulisseau (54) du déclencheur à aimant (51), un prolongement (66) tourné en direction du pont de commutation (5).
  5. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 4,
    caractérisé en ce qu'une surface d'arrêt (29) est prévue sur le bouton d'actionnement (20), qui est en appui sur la bielle de poussée (25) du côté opposé à la mâchoire (9), lorsque l'extrémité (26) de la bielle de poussée (25) est reçue dans la mâchoire (9) et que le pont de commutation (5) se trouve dans la position d'arrêt, et que le bouton d'actionnement (20) est chargé par son ressort (23) dans la direction qui correspond au déplacement de l'extrémité (26) de la bielle de poussée (25) dans la mâchoire (9).
  6. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 5,
    caractérisé en ce que le support de levier à cliquet (7) est réalisé en forme de U, que l'âme (103) forme une butée adjointe au levier à cliquet (6) et que les ouvertures de palier (104) pour le montage du support de levier à cliquet (7) sur le pont de commutation (5) sont prévues dans les ailes (101, 102).
  7. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 6,
    caractérisé en ce que le levier à cliquet (6), présentant une section transversale sensiblement en forme de U, présente des saillies de guidage (89) qui sont en appui sur les faces extérieures des ailes (101, 102) du support de levier à cliquet (7).
  8. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 7,
    caractérisé en ce que le ressort (8) adjoint au levier à cliquet (6) est en appui par une aile (11) sur une butée (12) du levier à cliquet (6) et par son autre aile (13) sur une languette relevée (14) du support de levier à cliquet (7) et que le ressort (8) repose, par sa partie médiane présentant au moins un enroulement en forme de vis, sur un tenon (10) concentrique à l'ouverture de palier du levier à cliquet (6).
  9. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 8,
    caractérisé en ce que la bande bimétallique (41) du déclencheur à bilame est fixée à un support (42) fixé sans jeu dans le carter (1) et que le pont de commutation (5) est en appui, dans sa position d'arrêt, sur le support (42) de la bande bimétallique (41).
  10. Disjoncteur de protection de canalisation selon la revendication 9,
    caractérisé en ce que le support (42) de la bande bimétallique (41) présente un collier (43) dans lequel sont prévues au moins deux ouvertures (44) et qu'au moins deux broches tronconiques (45) en saillie dans l'intérieur du carter sont en prise dans les ouvertures (44) du support (42).
  11. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 10,
    caractérisé en ce qu'une vis d'arrêt (75) pour la bande bimétallique (41) est adjointe à l'extrémité du support (42) reliée à la bande bimétallique (41), laquelle vis est vissée dans un écrou (76) logé dans le carter (1).
  12. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 11,
    caractérisé en ce que la bande bimétallique (41) est accouplée au levier à cliquet (6) par l'intermédiaire d'un levier de traction (67), de préférence en forme d'étrier.
  13. Disjoncteur de protection de canalisation selon la revendication 12,
    caractérisé en ce que le levier de traction (67) adjoint à la bande bimétallique (41) est guidé à coulissement dans un guide (68) en forme de fente disposé dans le carter (1).
  14. Disjoncteur de protection de canalisation selon la revendication 13,
    caractérisé en ce qu'un bras (65) prévu sur le levier à cliquet (6) est adjoint à l'extrémité libre (70) adjointe au levier à cliquet (6) du levier de traction (67) en saillie vers le haut hors du guide (68).
  15. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 14,
    caractérisé en ce que sont formées sur le levier à cliquet (6), d'un côté une saillie (81) avec un trou (83) pour une broche d'accouplement et du côté opposé une saillie (80) avec un évidement(82) en forme de fente, l'évidement (82) en forme de fente s'étendant dans une des saillies (80) du levier à cliquet (6) en suivant un arc d'un cercle concentrique à l'axe de support (4) du levier à cliquet (6), pour une broche d'accouplement d'un disjoncteur de protection de canalisation adjacent.
  16. Disjoncteur de protection de canalisation selon la revendication 15,
    caractérisé en ce que des fentes en forme d'arc de cercle sont prévues, pour le passage de broches d'accouplement, opposées dans le carter (1) aux deux saillies (80, 81) du levier à cliquet (6).
  17. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 16,
    caractérisé en ce que le support de levier à cliquet (7) porte un oeillet (30) dans lequel est en prise le tenon d'actionnement (31) d'un afficheur de position de contact (32) qui est monté pivotant dans le carter (1) et à la surface d'affichage duquel est adjointe une ouverture (34) dans le carter (1).
  18. Disjoncteur de protection de canalisation selon l'une des revendications 1 à 17,
    caractérisé en ce que la partie (90) du bouton d'actionnement (20) accouplée à la bielle de poussée (25) est accouplée par un ressort accumulateur avec la partie de celui-ci qui présente le levier d'actionnement (21), que la partie (90) du bouton d'actionnement (20) accouplée à la bielle de poussée (25) présente une saillie (91) qui heurte, après un angle de pivotement prédéterminé du bouton d'actionnement (20), un talon (95) d'un levier à cliquet d'arrêt (93) monté pivotant dans le carter (1) et soumis à l'action d'un ressort, de telle sorte que la bielle de poussée (25) reste arrêtée lors d'un pivotement supplémentaire du levier d'actionnement (21), et qu'une came (96) est disposée sur la partie du bouton d'actionnement (20) avec le levier d'actionnement (21), laquelle fait pivoter le cliquet d'arrêt (93), pour le levier d'actionnement (21) déplacé essentiellement complètement en position de marche, contre l'action du ressort (94) qui le charge, pour déplacer le talon (95) hors de prise d'avec la saillie (91), de sorte que la bielle de poussée (25) déplace le pont de commutation (5) à la position de marche en relaxant le ressort accumulateur par sauts.
EP90890212A 1989-08-08 1990-07-16 Interrupteur de protection de ligne Expired - Lifetime EP0412953B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT190589 1989-08-08
AT1905/89 1989-08-08

Publications (3)

Publication Number Publication Date
EP0412953A2 EP0412953A2 (fr) 1991-02-13
EP0412953A3 EP0412953A3 (en) 1991-05-02
EP0412953B1 true EP0412953B1 (fr) 1994-08-31

Family

ID=3523561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90890212A Expired - Lifetime EP0412953B1 (fr) 1989-08-08 1990-07-16 Interrupteur de protection de ligne

Country Status (9)

Country Link
EP (1) EP0412953B1 (fr)
AT (1) ATE110882T1 (fr)
AU (1) AU627054B2 (fr)
DE (1) DE59006962D1 (fr)
ES (1) ES2063331T3 (fr)
HK (1) HK60396A (fr)
HU (1) HU205483B (fr)
TN (1) TNSN90113A1 (fr)
TR (1) TR24652A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674679B1 (fr) * 1991-03-29 1994-06-17 Hager Electro Mecanisme de serrure pour disjoncteur.
FR2689309B1 (fr) * 1992-03-31 1994-05-20 Merlin Gerin Mecanisme de commande a tiroir pour disjoncteur electrique a phase et neutre.
EP0570647B1 (fr) * 1992-05-13 1994-03-02 Hager Electro S.A. Mécanisme de serrure pour disjoncteur et disjoncteurs l'incorporant
AT404648B (de) * 1992-06-29 1999-01-25 Felten & Guilleaume Ag Oester Selbstschalter
TR27123A (tr) * 1993-07-21 1994-11-09 Felten & Guilleaume Ag Oester Kontak köprüsüne, tespit mandali mesnedine, tepit mandalina sahip otomatik salter.
GB9506399D0 (en) * 1995-03-29 1995-05-17 Delta Circuits Protection Circuit breaker
DE19735415A1 (de) * 1997-08-14 1999-02-18 Siemens Ag Schaltmechanismus für einen Schutzschalter
ES2147158B1 (es) * 1998-12-30 2001-03-01 Power Controls Iberica Sl Perfeccionamientos en los disyuntores automaticos de escape a tierra.
PT1146534E (pt) * 2000-04-11 2002-07-31 Felten & Guilleaume Kg Mecanismo de comutacao para disjuntores de proteccao
DE50210588D1 (de) 2001-01-31 2007-09-13 Siemens Ag Justiervorrichtung für einen thermischen auslöser
DE10126851C1 (de) * 2001-06-01 2002-12-19 Siemens Ag Schaltgerät mit einem elektromagnetischen Auslöser
DE50206909D1 (de) 2001-07-02 2006-06-29 Siemens Ag Justiervorrichtung fuer einen thermischen ausloeser
ITMI20011675A1 (it) * 2001-08-01 2003-02-01 Abb Service Srl Interruttore per un circuito elettrico a bassa tensione
CZ300092B6 (cs) * 2001-09-20 2009-01-28 Moeller Gebäudeautomation KG Spínací mechanika pro ochranný spínac
DE102006036191A1 (de) * 2006-08-01 2008-02-07 Siemens Ag Schaltvorrichtung
CN103021748B (zh) * 2012-12-28 2015-04-22 常熟开关制造有限公司(原常熟开关厂） 大断口断路器
CN108172479B (zh) * 2018-02-01 2024-04-09 雅絮智能科技有限公司 一种塑壳断路器的动触头

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641001A (en) * 1984-06-15 1987-02-03 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
EP0338930A1 (fr) * 1988-04-22 1989-10-25 Hager Electro S.A. Disjoncteurs ou disjoncteurs differentiels

Also Published As

Publication number Publication date
EP0412953A3 (en) 1991-05-02
HU904706D0 (en) 1991-01-28
HUT56659A (en) 1991-09-30
TR24652A (tr) 1992-01-01
AU6022690A (en) 1991-02-14
EP0412953A2 (fr) 1991-02-13
HU205483B (en) 1992-04-28
HK60396A (en) 1996-04-19
DE59006962D1 (de) 1994-10-06
ES2063331T3 (es) 1995-01-01
ATE110882T1 (de) 1994-09-15
TNSN90113A1 (fr) 1991-03-05
AU627054B2 (en) 1992-08-13

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