EP0829896A2 - Déclencheur magnétique en particulier pour un disjoncteur différentiel - Google Patents

Déclencheur magnétique en particulier pour un disjoncteur différentiel Download PDF

Info

Publication number
EP0829896A2
EP0829896A2 EP97810591A EP97810591A EP0829896A2 EP 0829896 A2 EP0829896 A2 EP 0829896A2 EP 97810591 A EP97810591 A EP 97810591A EP 97810591 A EP97810591 A EP 97810591A EP 0829896 A2 EP0829896 A2 EP 0829896A2
Authority
EP
European Patent Office
Prior art keywords
magnetic
magnetic release
release according
spring
yoke
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
EP97810591A
Other languages
German (de)
English (en)
Other versions
EP0829896A3 (fr
EP0829896B1 (fr
Inventor
Dominique Girardin
Siegfried Mayer
Siegfried Münzer
Gerhard Schneider
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 Schweiz AG
Original Assignee
ABB CMC Carl Meier AG
CMC Carl Maier and Cie 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 ABB CMC Carl Meier AG, CMC Carl Maier and Cie AG filed Critical ABB CMC Carl Meier AG
Publication of EP0829896A2 publication Critical patent/EP0829896A2/fr
Publication of EP0829896A3 publication Critical patent/EP0829896A3/fr
Application granted granted Critical
Publication of EP0829896B1 publication Critical patent/EP0829896B1/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part

Definitions

  • the invention is based on a magnetic release, especially for a residual current circuit breaker (FI switch), according to the preamble of claim 1.
  • a magnetic trigger has a magnetic supplied by a permanent magnet Circle with a U-shaped yoke and with a in the closed state of the magnetic circuit, the ends of the U bridging hinged anchors. If a trigger variable occurs, about a fault current, is in one on one of the two Leg of the U inserted trigger coil fed a signal. This signal creates a magnetic in the trip coil Flux, which is the magnetic generated by permanent magnets Continuous flow at the anchor location weakens. That of a biased one Spring loaded anchors will weaken the magnetic Continuous flow lifted from the yoke and around a bearing axis pivoted. Here he loosens a ram to the mechanical one Actuation of a device. With an FI switch, this works Pestle on a key switch, which is opening a contact arrangement of the FI switch.
  • the invention takes on a prior art of magnetic releases for FI switch reference, such as in DE-A1-38 38 444 is described.
  • the anchor is on the connecting bridge attached to a U-shaped leaf spring, whose legs are held on an anchor bearing.
  • This magnetic release also needs the tension spring generating the preload additionally one relatively complicated trained leaf spring.
  • a magnetic release described in DE-A1-41 11 092 has one by means of an armature bracket shaft rotatably and with a preloaded tension spring loaded anchor.
  • the wave has a rectangular mandrel caulked in the anchor and is guided in two side guides of an anchor holder.
  • the magnetic trigger also requires the shaft and the anchor and the shaft non-positively coupling thorn.
  • the task is based on a magnetic release, in particular for an FI switch of the type mentioned at the beginning, which is characterized by a simple structure and the lowest possible Number of components distinguished.
  • the magnetic release according to the invention by use a coiled spiral spring and by arranging the winding axis this spiral spring on the extension one for pivoting the Ankers required tilting edge parts, such as an additional spring or saved as rotatable bearing brackets.
  • the spiral spiral spring stands for a force-transmitting Pestle available and can also be used to reload the Reload energy required after a triggering process be effectively dampened.
  • that forms spiral spiral spring but a bearing hinge for the anchor and positions the anchor using a simple bracket extremely effective at the same time.
  • the anchor can then also be a simple shape with evenly distributed mass. This gives good vibration resistance and good Setting bandwidth of the magnetic release according to the invention reached.
  • the tipping edge by a magnetically insulating spacing of the two Yoke plates any bolts needed can be formed anyway does not apply to one equipped with such a yoke Magnetic trigger an additional component for the tipping edge.
  • the bolt between the two yoke plates can then be used a defined air gap can be set that the Use an otherwise usually between the two yoke plates disc-shaped diaphragm can be dispensed with makes.
  • Magnetic release has a trough-shaped bottom 1 and a cover 2 existing insulating housing.
  • a cylindrical plunger 4 is used in the lid 2 in the lid 2 in the lid 2 .
  • the plunger 4 has thickened lower end, which on a cuboid trained armature 5 of a magnetic circuit.
  • the upward end of the plunger 4 does not work Switch lock shown on a contact arrangement of a not FI switch shown.
  • the magnetic circuit also has a sheet metal 7, 8 containing U-shaped yoke 9.
  • the two yoke sheets are made with a non-magnetic material, for example a nickel alloy, existing bolt 10 approximately Welding at a distance of typically 50 to 100 ⁇ m fixed to each other. Through additional magnetically non-conductive Welding, soldering or gluing can reduce mechanical stability of the yoke 9 can be increased.
  • the one formed by the distance Air gap usually takes over the function of one used, membrane-shaped diaphragm.
  • the two yoke plates 7, 8 are each angled such that the yoke 9 has a V-shape in the region of the bend.
  • Between the two legs of the V is shaped as a prismatoid Permanent magnet 11 arranged with flat pole faces.
  • the two The pole faces are each on one of the two legs of the V on.
  • Such an arrangement is characterized in that the permanent magnetic flux is particularly good and without substantial leakage losses are coupled into the yoke 9, and that the permanent magnet 11 automatically and without additional tools positioned in the correct position.
  • the Magnet 11 can have a triangular or trapezoidal base have, the base of the triangle or trapezoid not necessarily straightforward, but also if necessary can be curved, for example in the form of a circular arc. In any case, however, the side faces of the triangle or Trapezes assigned to the pole faces of the magnet.
  • This intermediate floor has two on its top webs 13, 14 running parallel to one another. Between both webs is an unmarked opening and one also not designated material recess provided, which carries out the end sections of the yoke 9 containing U serve.
  • a yoke plate 7 formed Leg 15 of the U is one of an electrical signal excitable trigger coil 16 inserted. This trigger coil is with With the help of two power connections 17 led through the floor 1 supplied with electrical power, which occurs when a Residual current is formed in a summation current transformer.
  • This spring element 18 is designed as a double spring Designated spring element.
  • This spring element 18 contains two cylindrical, mirror-symmetrically arranged coil springs 19, 20 with typically up to 10 turns each. As below is described, the double spring is subjected to bending. Instead of the coil springs, others can coiled spiral springs, such as spiral springs, can be used. Instead of a double spring, a simple spiral one can also be used Bending spring as spring element 18 in the magnetic release according to the Invention are used.
  • Each spring 19 or 20 is in one Material recess 21 or 22 mounted, which in the web 13th or 14 is molded. The spring element 18 loads the armature 5 before triggering the magnetic release with a pre-tensioning force.
  • the Armature 5 before triggering the magnetic trigger on the ends of the U on and the armature 5 is then by the spring element 18 with a Preload loaded.
  • the magnetic circuit is then closed and the permanent magnetic flux is from permanent magnets 11 for example via the yoke plate 7, the leg 15 of the plate 7, the anchor 5 and the yoke plate 8 (Fig.1) back to Permanent magnets guided.
  • a fault current weakens the magnetic field in the release coil 16 fed current signal the field of the magnetic circuit in the Area of anchor 5.
  • the anchor 5 is under the effect of Spring element 18 tilted and leads - as can be seen from Fig.3 is - the plunger upwards, which is then opened by the switch lock, not shown, turns off the RCCB causes.
  • the armature 5 is open a tilting edge 23 formed by the pin 10 is pivotally mounted is, and that at least the winding axis of the winding Bending spring 19 is aligned in the extension of the tipping edge 23.
  • the coiled spiral spring 19 has two legs 24, 25, of which the leg 24 is fixed in the material recess 21 of the Web 13 is held and - as in particular Figures 2 and 3 can be removed - the leg 25 with an axially guided Section 26 in a holder of the groove 27 Anchor 5 is mounted.
  • the armature 5 When triggered, the armature 5 is then counterclockwise around the Tilting edge 23 tilted and the plunger 4 upwards from the Housing led up to the state of the Magnetic release is reached. Because the winding axis of the winding Spiral spring 19 is aligned in the extension of the tipping edge 23, and since the spiral spiral spring with its leg 24 in the Material recess 21 fixed and the armature 5 at the same time axially guided section 26 of the leg 24 is held, the spiral spiral spring 19 as a bearing hinge for the armature 5. a undesired sliding of the armature 5 on the tilting edge 23 when Trigger and when reloading the magnetic trigger is like this largely avoided.
  • spiral spring 19 not only serves to store and hold the anchor, but at the same time also generates force for the tappet 4 and when reloading the relieves mechanically supplied reloading energy parts of the magnetic release, such as additional springs or rotary bearings, be saved.
  • a particularly safe storage of the two spiral springs 19, 20 is achieved when each as a cylindrical coil spring are formed and each on an axially guided fixed bearing bolts are held.
  • Such a bearing pin can in the two spiral springs 19, 20 holding Intermediate floor 12 may be formed.
  • Fig.4 such is the coiled spiral spring 19 bearing bolt with the reference number 29 designated.
  • leg 25 It is advantageous to attach the leg 25 near the anchor, because then its axially directed section 26 is short and at the same time undesirable radial and axial forces from the Spring are largely kept away.
  • a particularly safe one Power transmission of the springs 19, 20 is guaranteed if the two legs of the springs 19, 20 each tangentially to apply their turns. At the same time, such a spring can be used easy to manufacture.
  • the leg 24 is advantageous radially on the turns start.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP97810591A 1996-09-12 1997-08-21 Déclencheur magnétique en particulier pour un disjoncteur différentiel Expired - Lifetime EP0829896B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19637076A DE19637076A1 (de) 1996-09-12 1996-09-12 Magnetauslöser, insbesondere für einen Fehlerstromschutzschalter
DE19637076 1996-09-12

Publications (3)

Publication Number Publication Date
EP0829896A2 true EP0829896A2 (fr) 1998-03-18
EP0829896A3 EP0829896A3 (fr) 2000-10-25
EP0829896B1 EP0829896B1 (fr) 2005-10-19

Family

ID=7805368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810591A Expired - Lifetime EP0829896B1 (fr) 1996-09-12 1997-08-21 Déclencheur magnétique en particulier pour un disjoncteur différentiel

Country Status (4)

Country Link
EP (1) EP0829896B1 (fr)
AT (1) ATE307384T1 (fr)
DE (2) DE19637076A1 (fr)
ES (1) ES2251733T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0981148A2 (fr) * 1998-08-17 2000-02-23 CMC Carl Maier + Cie AG Dispositif de déclenchement pour un disjoncteur, en particulier pour un disjoncteur à courant de défaut
DE102004044977A1 (de) * 2004-09-16 2006-04-06 Siemens Ag Auslöserelais für einen Fehlerstromschutzschalter
EP4266340A1 (fr) 2022-04-22 2023-10-25 ABB Schweiz AG Améliorations de relais magnétiques
EP4439617A1 (fr) 2023-03-30 2024-10-02 ABB Schweiz AG Actionneur magnétique pour systèmes électriques basse tension

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133645A1 (de) * 1970-07-21 1972-02-17 Maier & Cie C Magnetausloser
DE2649522A1 (de) * 1975-11-13 1977-05-18 Saparel Elektromagnetisches relais
GB2045001A (en) * 1979-03-01 1980-10-22 Ave Belli Andrea High sensitivity polarised release device
DE3528470A1 (de) * 1985-08-08 1987-02-19 Bbc Brown Boveri & Cie Fehlerstromschutzausloeser
DE3643510A1 (de) * 1986-12-19 1988-06-30 Felten & Guilleaume Energie Magnetsystem fuer schnellabschaltung
DE3838444A1 (de) * 1988-11-12 1990-05-17 Felten & Guilleaume Energie Magnetsystem fuer schnellabschaltung
DE4111092A1 (de) * 1991-04-07 1992-10-08 Schiele Gmbh & Co Kg Fehlerstromrelais

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133645A1 (de) * 1970-07-21 1972-02-17 Maier & Cie C Magnetausloser
DE2649522A1 (de) * 1975-11-13 1977-05-18 Saparel Elektromagnetisches relais
GB2045001A (en) * 1979-03-01 1980-10-22 Ave Belli Andrea High sensitivity polarised release device
DE3528470A1 (de) * 1985-08-08 1987-02-19 Bbc Brown Boveri & Cie Fehlerstromschutzausloeser
DE3643510A1 (de) * 1986-12-19 1988-06-30 Felten & Guilleaume Energie Magnetsystem fuer schnellabschaltung
DE3838444A1 (de) * 1988-11-12 1990-05-17 Felten & Guilleaume Energie Magnetsystem fuer schnellabschaltung
DE4111092A1 (de) * 1991-04-07 1992-10-08 Schiele Gmbh & Co Kg Fehlerstromrelais

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0981148A2 (fr) * 1998-08-17 2000-02-23 CMC Carl Maier + Cie AG Dispositif de déclenchement pour un disjoncteur, en particulier pour un disjoncteur à courant de défaut
DE19837059A1 (de) * 1998-08-17 2000-02-24 Maier & Cie C Auslösevorrichtung für einen Schutzschalter, insbesondere einen Fehlerstrom-Schutzschalter
EP0981148A3 (fr) * 1998-08-17 2000-08-09 CMC Carl Maier + Cie AG Dispositif de déclenchement pour un disjoncteur, en particulier pour un disjoncteur à courant de défaut
DE102004044977A1 (de) * 2004-09-16 2006-04-06 Siemens Ag Auslöserelais für einen Fehlerstromschutzschalter
DE102004044977B4 (de) * 2004-09-16 2007-03-29 Siemens Ag Auslöserelais für einen Fehlerstromschutzschalter
EP4266340A1 (fr) 2022-04-22 2023-10-25 ABB Schweiz AG Améliorations de relais magnétiques
EP4439617A1 (fr) 2023-03-30 2024-10-02 ABB Schweiz AG Actionneur magnétique pour systèmes électriques basse tension

Also Published As

Publication number Publication date
DE19637076A1 (de) 1998-03-19
ATE307384T1 (de) 2005-11-15
EP0829896A3 (fr) 2000-10-25
ES2251733T3 (es) 2006-05-01
DE59712447D1 (de) 2005-11-24
EP0829896B1 (fr) 2005-10-19

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