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EP3300532B1 - Electrical device of circuit breaker type - Google Patents

Electrical device of circuit breaker type Download PDF

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Publication number
EP3300532B1
EP3300532B1 EP17720188.6A EP17720188A EP3300532B1 EP 3300532 B1 EP3300532 B1 EP 3300532B1 EP 17720188 A EP17720188 A EP 17720188A EP 3300532 B1 EP3300532 B1 EP 3300532B1
Authority
EP
European Patent Office
Prior art keywords
contact
contact element
electrical device
axis
circuit
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.)
Active
Application number
EP17720188.6A
Other languages
German (de)
French (fr)
Other versions
EP3300532A1 (en
Inventor
Denis Deckert
Jean-Marie Roiatti
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
Publication of EP3300532A1 publication Critical patent/EP3300532A1/en
Application granted granted Critical
Publication of EP3300532B1 publication Critical patent/EP3300532B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H71/40—Combined electrothermal and electromagnetic 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element

Definitions

  • the present invention relates to an electrical device of the circuit breaker type. Electrical devices of this type are used to protect electrical equipment against overcurrents and short circuits.
  • circuit breaker type comprising a housing, a first circuit comprising a first contact and a second circuit being mounted in parallel with the first circuit and comprising a second contact and a bimetallic strip.
  • Said first circuit and said second circuit are connected in series with a coil of a magnetic actuator.
  • Said first contact comprises a first contact element and a second contact element and said second contact comprises a third contact element and a fourth contact element.
  • Said magnetic actuator is capable of opening the first contact by separating the first contact element from the second contact element when a first current is applied to the coil and is capable of opening the second contact by separating the third contact element from the fourth element contact when a second current is applied to the coil, the value of the second current being greater than the value of the first current.
  • Such an electrical appliance is, for example, known from the document WO 2012/140145 A1 .
  • This type of electrical device allows, thanks to the first circuit and the second circuit connected in parallel to reduce its overall impedance.
  • the magnetic actuator opens the first contact by moving the first contact element away from the second contact element. After a delay of approximately 0.5 to 1.5 ms, the short-circuit current flows through the second circuit and the short-circuit current is applied to the coil, the value of the short-circuit current being greater than the value of the second current. Then, the magnetic actuator opens the second contact by moving the third contact element away from the fourth contact element.
  • the first contact element, as well as the second contact element are each pivotally mounted relative to the housing and are each provided with a spring to which they are respectively connected. Each of these springs applies a force to the contact element to which they are linked.
  • the first and third contact elements are respectively kept pressed against the second contact element and the third contact element.
  • a third spring is connected to the mechanical lock and applies a force to this mechanical lock used to open the first contact and the second contact. The first spring therefore acts in a direction opposite to the direction in which the third spring acts. This makes the circuit breaker mechanism unstable and susceptible to malfunction.
  • the purpose of the electrical device according to the invention is to overcome these drawbacks and to propose an electrical device having a stable and reliable mechanism, while ensuring satisfactory cutting performance.
  • the electrical device is an electrical device of the circuit breaker type comprising a housing, a first circuit comprising a first contact and a second circuit mounted in parallel with the first circuit and comprising a second contact and a bimetallic strip. Said first circuit and said second circuit are connected in series with a coil of a magnetic actuator.
  • the first contact includes a first contact member and a second contact member.
  • the second contact includes a third contact element and a fourth contact element.
  • Said magnetic actuator is able to open the first contact by moving the first contact element away from the second contact element when a first current is applied to the coil and is able to open the second contact by removing the third contact contact element of the fourth contact element when a second current is applied to the coil.
  • the electrical device is characterized in that it comprises a contact carrier comprising a first mechanical connection mechanically connecting the first contact element to the contact carrier, a second mechanical connection mechanically connecting the third contact element to the door -contact and a third mechanical link mechanically connecting the contact carrier to the housing, the contact carrier allowing the relative movement of the first contact element and the third contact element relative to the housing.
  • the electrical device according to the invention has the advantage of having satisfactory cutting performance and of presenting a stable and reliable mechanism.
  • the magnetic actuator can be a double-stage actuator and comprise at least two stages, that is to say a first stage and a second stage.
  • the first stage of said magnetic actuator can be able to open the first contact by moving the first contact element away from the second contact element when the first current is applied to the coil and / or the second stage of said magnetic actuator can be able to open the second contact by moving the third contact element away from the fourth contact element when the second current is applied to the coil.
  • the first contact element comprises a first spring and the third contact element comprises a second spring, said first spring comprising a first end connected to the first contact element and a second end connected to the contact carrier, said second spring comprising a first end connected to the third contact element and a second end connected to the contact carrier.
  • the forces applied by the first spring and the second spring, respectively to the first contact element and to the third contact element are independent of the orientation (angular position) of the contact carrier relative to the housing.
  • the force applied by the first spring and the second spring can be precisely pre-established, which has the effect of improving the cutting performance.
  • the first mechanical connection and / or the second mechanical connection and / or the third mechanical connection is (are) one (or more) mechanical connection (s) with a degree of freedom.
  • the first mechanical connection allows rotation of the first contact element relative to the contact carrier around a first axis and / or the second mechanical connection allows a rotation of the third contact element relative to the contact carrier about a second axis and / or the third mechanical connection allows rotation of the contact carrier relative to the housing around a third axis.
  • the first axis, the second axis and the third axis are substantially parallel.
  • the first axis and the second axis are substantially collinear.
  • the first mechanical connection allows a translation of the first contact element relative to the contact carrier along a fourth axis and / or the second mechanical connection allows a translation of the third contact element relative to the contact carrier along a fifth axis and / or the third mechanical connection allows a translation of the contact carrier relative to the housing along a sixth axis.
  • the first axis, the second axis and the third axis are substantially parallel.
  • the first contact element has a symmetrical shape with respect to a first plane of symmetry and / or the third contact element has a symmetrical shape with respect to a second plane of symmetry.
  • the first axis is perpendicular to the first plane of symmetry and / or the second axis is perpendicular to the second plane of symmetry.
  • the first plane of symmetry is parallel to the second plane of symmetry.
  • the first plane of symmetry and the second plane of symmetry are coplanar.
  • the first contact element is able to perform a first rotation around the first axis to be brought into contact with the second contact element and the third contact element is able to perform a second rotation around the second axis to be brought into contact with the fourth contact element, the direction of the first rotation being the same as that of the second rotation.
  • the first current has an intensity greater than 1.13 times a nominal current of the electrical appliance, preferably between 1.13 and 2.55 times the nominal current of the electrical appliance, more preferably around 1.45 times the nominal current of the electrical appliance and / or the second current has an intensity between 2.55 and 20 times the nominal current of the electrical appliance, preferably between 4 and 12 times the nominal current of the electrical appliance.
  • the nominal current of the electrical device can be between around 6 amps and around 125 amps.
  • the figure 1 shows an electrical diagram of the circuit breaker according to the invention.
  • the circuit breaker 10 comprises a first circuit 40 comprising a first contact 41 and a second circuit 60 being mounted in parallel with the first circuit 40 and comprising a second contact 61 and a bimetallic strip 64.
  • the first circuit 40 and the second circuit 60 are mounted in series with a coil 81 of a magnetic actuator 80.
  • the first contact 41 comprises a first contact element 42 and a second contact element 43.
  • the second contact 61 comprises a third contact element 62 and a fourth contact element 63.
  • the magnetic actuator 80 is able to open the first contact 41 by moving the first contact element 42 away from the second contact element 43 when a first current is applied to the coil 81.
  • the magnetic actuator 80 is also able to open the second contact 61 by moving the third contact element 62 away from the fourth contact element 63 when a second current is applied to the coil 81.
  • the magnetic actuator 80 can be a double-stage actuator and comprise at least two stages, that is to say a first stage and a second stage.
  • the first stage of said magnetic actuator 80 may be able to open the first contact 41 by spreading the first contact element 42 from the second contact element 43 when the first current is applied to the coil 81 and / or the second stage of said magnetic actuator 80 may be able to open the second contact 61 by moving the third contact element 62 away from the fourth contact element 63 when a second current is applied to the coil 81.
  • the electrical appliance 10 may further comprise a mechanical lock 12 capable of acting mechanically on the first contact element 42 and the third contact element 62 so as to be able to open and / or close the first contact 41 and / or the second contact 61.
  • the bimetallic strip 64 may be able to act mechanically on the mechanical lock 12 to cause the opening of the first contact 41 and / or of the second contact 61.
  • the mechanical lock 12 can also be mechanically connected to a lever 14 so as to allow the lever 14 to act on the mechanical lock 12 so that the latter causes the opening of the first contact 41 and / or of the second contact 61.
  • the electrical appliance 10 is provided with a housing 20, in which are preferably arranged the first circuit 40, the second circuit 60, the mechanical lock 12, the magnetic actuator 80 and / or the contact carrier 100.
  • the lever 14 can also be, at least partially, included in the housing 20.
  • the contact carrier 100 comprises a first mechanical connection 101 mechanically connecting the first contact element 42 to the contact carrier 100, a second mechanical connection 102 mechanically connecting the third contact element 62 to the contact carrier 100 and a third mechanical link 103 mechanically connecting the contact carrier 100 to the housing 20.
  • the contact carrier 100 allows the relative movement of the first contact element 42 and the third contact element 62 relative to the housing 20.
  • the first mechanical connection 101 and / or the second mechanical connection 102 and / or the third mechanical connection 103 can be mechanical connections with a degree of freedom.
  • the first mechanical link 101 allows rotation of the first element contact 42 relative to the contact carrier 100 about a first axis A1.
  • the second mechanical link 102 allows rotation of the third contact element 62 relative to the contact carrier 100 about a second axis A2.
  • the arrangement of the first axis A1 and the second axis A2 is visible in the figures 2 to 9 and 12 to 15 .
  • the third mechanical link 103 allows rotation of the contact carrier 100 relative to the housing 20 around a third axis A3.
  • the arrangement of the third axis A3 is visible in the figures 2 to 9 and 12 to 15 .
  • the first axis A1, the second axis A2 and the third axis A3 are substantially parallel.
  • the first axis A1, the second axis A2 and / or the third axis A3 are also substantially collinear.
  • the first contact element 42 has a symmetrical shape with respect to a first plane of symmetry.
  • the third contact element 62 has a symmetrical shape with respect to a second plane of symmetry.
  • the contact carrier 100 takes a first position.
  • the contact carrier 100 takes the first position, the first contact element 42 is in contact with the second contact element 43.
  • the first contact element 42 can comprise a first spring 44 and the third contact element 62 comprises a second spring 65.
  • the first spring 44 can comprise a first end 44a connected to the first contact element 42 and a second end 44b connected to the holder. contact 100.
  • the second spring 65 can comprise a first end 65a connected to the third contact element 62 and a second end 65b connected to the contact holder 100.
  • the third contact element 62 is in contact with the fourth contact element 63.
  • the first spring 44 which is connected by its first end 44a to the first contact element 42 and by its second end 44b to the contact carrier 100 and the second spring 65, which is connected by its first end 65a to the third contact element 62 and by its second end 65b to the contact carrier 100, preferably act in substantially parallel directions.
  • the electrical appliance 10 can also comprise a third spring 104.
  • the third spring 104 can be connected by a first end 104a to the contact carrier 100 and by a second end 104b to the housing 20.
  • the third spring 104 can allow inertia tilting of the contact carrier 100.
  • the contact carrier 100 takes a second position in which the first contact element 42 is distant from the second contact element 43 and in which the third contact element 62 is in contact with the fourth contact element 63.
  • the contact carrier 100 can also comprise a tilting element 106.
  • the tilting element 106 can be rotatably mounted relative to the third axis A3.
  • the tilting element 106 may be mechanically connected to the contact carrier 100 and / or to the housing 20 and may allow relative movement relative to the contact carrier 100 and / or to the housing 20.
  • the tilting element 106 may include a first projection 107 which can come to bear against the first contact element 42 to move it away from the second contact element 43. This position is disclosed in the figure 5 . When the first projection 107 bears against the first contact element 42, the first projection 107 acts by compressing the first spring 44.
  • the third contact element 62 and the fourth contact element 63 are in contact when the contact carrier 100 takes the second position.
  • the tilting element 106 which takes a third position, bears against the first contact element 42 and the third contact element 62 to move the first contact element 42 away from the second contact element 43 and the third contact element 62 of the fourth contact element 63. In this third position, the tilting element 106 is turned anti-clockwise relative to the other elements of the contact carrier 100.
  • Contact holder 100 can take a fourth position in which the first contact element 42 is moved away from the second contact element 43 and in which the third contact element 62 is moved away from the fourth contact element 63.
  • the contact carrier 100 takes this fourth position continued manipulation of the lever 14.
  • the electrical device 10 comprises a magnetic actuator 80 capable of opening the first contact 41 by moving the first contact element 42 away from the second contact element 43 when a first current is applied to the coil 81, and able to open the second contact 61 by moving the third contact element 62 away from the fourth contact element 63 when a second current is applied to the coil 81.
  • the magnetic actuator 80 may comprise a first movable core 82, a second core movable 84 and an actuating rod 86.
  • the first movable core 82 and the second movable core 84 can bear against the actuating rod 86 to move the latter to, for example, move the contact carrier 100 from the first position to the second position, from the second position to the third position and / or from the third position to the fourth position.
  • the first movable core 82 can come to bear against a first bearing face 86a of the actuating rod 86.
  • the second movable core 84 can come to bear against a second bearing face 86b of the actuating rod 86.
  • the first movable core 82 is able to be moved when the first current is applied to the coil 81, to move the contact carrier 100 from the first position to the second position.
  • the second movable core 84 is able to be moved when the second current is applied to the coil 81, to move the contact carrier 100 from the second position to the third position.
  • the first movable core 82 comes to bear against the second bearing face 86b of the actuating rod 86 to move the latter towards the contact carrier 100 and / or the tilting element 106.
  • the first mobile core 82 is moved following an application of the first current to the coil 81.
  • the first mobile core 82 has been moved to first come into contact with the first bearing face 86a and then push the actuating rod 86 towards the outside of the magnetic actuator 80 in the direction of the contact carrier 100 and / or of the tilting element 106.
  • a tip 87 of the actuating rod 86 can come to bear against the tilting element 106 and / or the contact holder 100 to tilt the tilting element 106 and / or the contact holder 100.
  • the tip 87 of the actuating rod 86 bears against the tilting element 106 and / or the contact carrier 100 to distance the first contact element 42 of the second contact element 43 by moving the contact carrier 100 from the first position to the second position.
  • the third contact element 62 remains in contact with the fourth contact element 63.
  • the third contact element 62 may have the shape of a fork or a tuning fork comprising a first arm 62a, a second arm 62b extending substantially in parallel with the first arm 62a and a branch 62c which can come into contact with the fourth contact element 63.
  • the first contact element 42 may extend substantially in parallel with the two arms 62a, 62b and in extension of the branch 62c.
  • the first contact element 42 can be arranged between the two arms 62a, 62b of the third contact element and can preferably have a ribbon shape.
  • the electrical device 10 according to the second embodiment may comprise a magnetic actuator 80 identical to that of the first embodiment.
  • the contact carrier 100 takes the first position and that the first contact element 42 is in contact with the second contact element 43 and that the third contact element 62 is in contact with the fourth contact element 63 .
  • the contact carrier 100 takes the second position in which the first contact element 42 is spaced from the second contact element 43, while the third contact element 62 remains in contact with the fourth contact element 63.
  • a projection 107 of the tilting element 106 is in abutment against the first contact element 42 and separates the latter from the second contact element 43.
  • the projection 107 extends through the space between the first arm 62a and the second arm 62b.
  • the tilting element 106 is provided with a support section 108 which can each come to bear against one of the arms 62a, 62b of the third contact element 62 to spread the third contact element 62 of the fourth contact element 63.
  • these support sections 108 are each in abutment against one of the two arms 62a, 62b.
  • the first spring 44 and the second spring 65 act respectively on the first contact element 42 and the third contact element 62 so as to bear the first contact element 42 against the second contact element 43 and the third contact element 62 against the fourth contact element 63.
  • the first spring 44 and the second spring 65 can act in substantially parallel directions, either in the same direction when the first spring 44 and the second spring 65 are arranged on the same side with respect to the first and second axes A1, A2, either in the opposite direction when they are on either side of the first axis A1 and the second axis A2, as is, by example, the case for the second embodiment of the invention.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)

Description

La présente invention concerne un appareil électrique de type disjoncteur. Des appareils électriques de ce type servent à protéger des équipements électriques contre des surintensités et des courts-circuits.The present invention relates to an electrical device of the circuit breaker type. Electrical devices of this type are used to protect electrical equipment against overcurrents and short circuits.

Il existe des appareils électriques de type disjoncteur comprenant un boîtier, un premier circuit comportant un premier contact et un deuxième circuit étant monté en parallèle au premier circuit et comportant un deuxième contact et un bilame.There are electrical devices of the circuit breaker type comprising a housing, a first circuit comprising a first contact and a second circuit being mounted in parallel with the first circuit and comprising a second contact and a bimetallic strip.

Ledit premier circuit et ledit deuxième circuit sont montés en série avec une bobine d'un actionneur magnétique. Ledit premier contact comprend un premier élément de contact et un deuxième élément de contact et ledit deuxième contact comprend un troisième élément de contact et un quatrième élément de contact. Ledit actionneur magnétique est apte à ouvrir le premier contact en écartant le premier élément de contact du deuxième élément de contact lorsqu'un premier courant est appliqué à la bobine et est apte à ouvrir le deuxième contact en écartant le troisième élément de contact du quatrième élément de contact lorsqu'un deuxième courant est appliqué à la bobine, la valeur du deuxième courant étant supérieure à la valeur du premier courant . Un tel appareil électrique est, par exemple, connu du document WO 2012/140145 A1 .Said first circuit and said second circuit are connected in series with a coil of a magnetic actuator. Said first contact comprises a first contact element and a second contact element and said second contact comprises a third contact element and a fourth contact element. Said magnetic actuator is capable of opening the first contact by separating the first contact element from the second contact element when a first current is applied to the coil and is capable of opening the second contact by separating the third contact element from the fourth element contact when a second current is applied to the coil, the value of the second current being greater than the value of the first current. Such an electrical appliance is, for example, known from the document WO 2012/140145 A1 .

Ce type d'appareil électrique permet, grâce au premier circuit et au deuxième circuit montés en parallèle de réduire son impédance globale.This type of electrical device allows, thanks to the first circuit and the second circuit connected in parallel to reduce its overall impedance.

Lorsqu'une surcharge apparaît dans une installation électrique à laquelle est relié l'appareil électrique, ledit premier courant est appliqué à la bobine. Suite à cette application du premier courant, l'actionneur magnétique ouvre le premier contact en écartant le premier élément de contact du deuxième élément de contact. Ainsi, le premier circuit est interrompu et la surcharge parcourue par l'installation électrique passe entièrement à travers le deuxième circuit. La surcharge pourra ainsi déformer le bilame. Le bilame, qui peut être mécaniquement relié au deuxième contact par le biais d'une serrure de coupure, pourra donc déclencher l'ouverture du deuxième contact en écartant le troisième élément de contact du quatrième élément de contact. Le circuit parcouru par la surcharge est ainsi interrompu. Dans le cas d'un court-circuit, le courant du court-circuit parcourt le premier circuit et le deuxième circuit et un premier courant est appliqué à la bobine. Ensuite, l'actionneur magnétique ouvre le premier contact en écartant le premier élément de contact du deuxième élément de contact. Après un délai d'environ 0,5 à 1,5 ms, le courant de court-circuit passe par le deuxième circuit et le courant de court-circuit est appliqué à la bobine, la valeur du courant de court-circuit étant supérieure à la valeur du deuxième courant. Ensuite, l'actionneur magnétique ouvre le deuxième contact en écartant le troisième élément de contact du quatrième élément de contact.When an overload occurs in an electrical installation to which the electrical appliance is connected, said first current is applied to the coil. Following this application of the first current, the magnetic actuator opens the first contact by moving the first contact element away from the second contact element. Thus, the first circuit is interrupted and the overload traveled by the electrical installation passes entirely through the second circuit. Overloading can thus deform the bimetallic strip. The bimetallic strip, which can be mechanically connected to the second contact by means of a cut-off lock, can therefore trigger the opening of the second contact by moving the third contact element away from the fourth contact element. The circuit traversed by the overload is thus interrupted. In the case of a short circuit, the short circuit current flows through the first circuit and the second circuit and a first current is applied to the coil. Then, the magnetic actuator opens the first contact by moving the first contact element away from the second contact element. After a delay of approximately 0.5 to 1.5 ms, the short-circuit current flows through the second circuit and the short-circuit current is applied to the coil, the value of the short-circuit current being greater than the value of the second current. Then, the magnetic actuator opens the second contact by moving the third contact element away from the fourth contact element.

Dans le document WO 2012/140145 A1 , le premier élément de contact, ainsi que le deuxième élément de contact, sont chacun montés pivotant par rapport au boîtier et sont chacun munis d'un ressort auquel ils sont respectivement liés. Chacun de ces ressorts applique une force à l'élément de contact auquel ils sont liés. Les premier et troisième éléments de contact sont respectivement maintenus appuyés contre le deuxième élément de contact et le troisième élément de contact. Un troisième ressort est relié à la serrure mécanique et applique une force à cette serrure mécanique servant à ouvrir le premier contact et le deuxième contact. Le premier ressort agit donc dans un sens opposé au sens dans lequel agit le troisième ressort. Ceci rend le mécanisme du disjoncteur peu stable et susceptible de dysfonctionnement.In the document WO 2012/140145 A1 , the first contact element, as well as the second contact element, are each pivotally mounted relative to the housing and are each provided with a spring to which they are respectively connected. Each of these springs applies a force to the contact element to which they are linked. The first and third contact elements are respectively kept pressed against the second contact element and the third contact element. A third spring is connected to the mechanical lock and applies a force to this mechanical lock used to open the first contact and the second contact. The first spring therefore acts in a direction opposite to the direction in which the third spring acts. This makes the circuit breaker mechanism unstable and susceptible to malfunction.

Le document EP 2 223 321 B1 divulgue un appareil électrique selon le préambule de la revendication 1.The document EP 2,223,321 B1 discloses an electrical device according to the preamble of claim 1.

Le but de l'appareil électrique selon l'invention est de pallier ces inconvénients et de proposer un appareil électrique présentant un mécanisme stable et fiable, tout en assurant des performances de coupure satisfaisantes.The purpose of the electrical device according to the invention is to overcome these drawbacks and to propose an electrical device having a stable and reliable mechanism, while ensuring satisfactory cutting performance.

A cet effet, l'appareil électrique selon l'invention est un appareil électrique de type disjoncteur comprenant un boîtier, un premier circuit comportant un premier contact et un deuxième circuit monté en parallèle avec le premier circuit et comportant un deuxième contact et un bilame. Ledit premier circuit et ledit deuxième circuit sont montés en série avec une bobine d'un actionneur magnétique. Ledit premier contact comprend un premier élément de contact et un deuxième élément de contact. Ledit deuxième contact comprend un troisième élément de contact et un quatrième élément de contact. Ledit actionneur magnétique est apte à ouvrir le premier contact en écartant le premier élément de contact du deuxième élément de contact lorsque un premier courant est appliqué à la bobine et est apte à ouvrir le deuxième contact en écartant le troisième élément de contact du quatrième élément de contact lorsque un deuxième courant est appliqué à la bobine. L'appareil électrique selon l'invention est caractérisé en ce qu'il comprend un porte-contact comprenant une première liaison mécanique reliant mécaniquement le premier élément de contact au porte-contact, une deuxième liaison mécanique reliant mécaniquement le troisième élément de contact au porte-contact et une troisième liaison mécanique reliant mécaniquement le porte-contact au boîtier, le porte-contact permettant le mouvement relatif du premier élément de contact et du troisième élément de contact par rapport au boîtier.To this end, the electrical device according to the invention is an electrical device of the circuit breaker type comprising a housing, a first circuit comprising a first contact and a second circuit mounted in parallel with the first circuit and comprising a second contact and a bimetallic strip. Said first circuit and said second circuit are connected in series with a coil of a magnetic actuator. The first contact includes a first contact member and a second contact member. The second contact includes a third contact element and a fourth contact element. Said magnetic actuator is able to open the first contact by moving the first contact element away from the second contact element when a first current is applied to the coil and is able to open the second contact by removing the third contact contact element of the fourth contact element when a second current is applied to the coil. The electrical device according to the invention is characterized in that it comprises a contact carrier comprising a first mechanical connection mechanically connecting the first contact element to the contact carrier, a second mechanical connection mechanically connecting the third contact element to the door -contact and a third mechanical link mechanically connecting the contact carrier to the housing, the contact carrier allowing the relative movement of the first contact element and the third contact element relative to the housing.

L'appareil électrique selon l'invention a l'avantage de présenter des performances de coupure satisfaisantes et de présenter un mécanisme stable et fiable.The electrical device according to the invention has the advantage of having satisfactory cutting performance and of presenting a stable and reliable mechanism.

Selon une caractéristique additionnelle possible, l'actionneur magnétique peut être un actionneur à double étage et comprendre au moins deux étages, c'est-à-dire un premier étage et un deuxième étage.According to a possible additional characteristic, the magnetic actuator can be a double-stage actuator and comprise at least two stages, that is to say a first stage and a second stage.

Selon une possibilité, le premier étage dudit actionneur magnétique peut être apte à ouvrir le premier contact en écartant le premier élément de contact du deuxième élément de contact lorsque le premier courant est appliqué à la bobine et/ou le deuxième étage dudit actionneur magnétique peut être apte à ouvrir le deuxième contact en écartant le troisième élément de contact du quatrième élément de contact lorsque le deuxième courant est appliqué à la bobine.According to one possibility, the first stage of said magnetic actuator can be able to open the first contact by moving the first contact element away from the second contact element when the first current is applied to the coil and / or the second stage of said magnetic actuator can be able to open the second contact by moving the third contact element away from the fourth contact element when the second current is applied to the coil.

Selon l'invention, le premier élément de contact comprend un premier ressort et le troisième élément contact comprend un deuxième ressort,
ledit premier ressort comprenant une première extrémité reliée au premier élément de contact et une deuxième extrémité reliée au porte-contact,
ledit deuxième ressort comprenant une première extrémité reliée au troisième élément de contact et une deuxième extrémité reliée au porte-contact.According to the invention, the first contact element comprises a first spring and the third contact element comprises a second spring,
said first spring comprising a first end connected to the first contact element and a second end connected to the contact carrier,
said second spring comprising a first end connected to the third contact element and a second end connected to the contact carrier.

Ainsi, les forces appliquées par le premier ressort et le deuxième ressort, respectivement au premier élément de contact et au troisième élément de contact, sont indépendantes de l'orientation (position angulaire) du porte-contact par rapport au boîtier. Il en résulte que la force appliquée par le premier ressort et le deuxième ressort peut être précisément pré-établie, ce qui a pour effet d'améliorer les performances de coupure.Thus, the forces applied by the first spring and the second spring, respectively to the first contact element and to the third contact element, are independent of the orientation (angular position) of the contact carrier relative to the housing. As a result, the force applied by the first spring and the second spring can be precisely pre-established, which has the effect of improving the cutting performance.

Selon une possibilité, la première liaison mécanique et/ou la deuxième liaison mécanique et/ou la troisième liaison mécanique est(sont) une(des) liaison(s) mécanique(s) avec un degré de liberté.According to one possibility, the first mechanical connection and / or the second mechanical connection and / or the third mechanical connection is (are) one (or more) mechanical connection (s) with a degree of freedom.

Dans le cadre d'une première variante de l'appareil électrique, selon une possibilité, la première liaison mécanique permet une rotation du premier élément de contact par rapport au porte-contact autour d'un premier axe et/ou la deuxième liaison mécanique permet une rotation du troisième élément de contact par rapport au porte-contact autour d'un deuxième axe et/ou la troisième liaison mécanique permet une rotation du porte-contact par rapport au boîtier autour d'un troisième axe.In the context of a first variant of the electrical device, according to one possibility, the first mechanical connection allows rotation of the first contact element relative to the contact carrier around a first axis and / or the second mechanical connection allows a rotation of the third contact element relative to the contact carrier about a second axis and / or the third mechanical connection allows rotation of the contact carrier relative to the housing around a third axis.

Dans le cadre de cette première variante, selon des caractéristiques additionnelles possibles, le premier axe, le deuxième axe et le troisième axe sont sensiblement parallèles.In the context of this first variant, according to possible additional characteristics, the first axis, the second axis and the third axis are substantially parallel.

Dans cette même première variante, selon une possibilité, le premier axe et le deuxième axe sont sensiblement colinéaires.In this same first variant, according to one possibility, the first axis and the second axis are substantially collinear.

Dans le cadre d'une deuxième variante de l'appareil électrique, selon une possibilité, la première liaison mécanique permet une translation du premier élément de contact par rapport au porte-contact le long d'un quatrième axe et/ou la deuxième liaison mécanique permet une translation du troisième élément de contact par rapport au porte-contact le long d'un cinquième axe et/ou la troisième liaison mécanique permet une translation du porte-contact par rapport au boîtier le long d'un sixième axe.In the context of a second variant of the electrical device, according to one possibility, the first mechanical connection allows a translation of the first contact element relative to the contact carrier along a fourth axis and / or the second mechanical connection allows a translation of the third contact element relative to the contact carrier along a fifth axis and / or the third mechanical connection allows a translation of the contact carrier relative to the housing along a sixth axis.

Dans le cadre de cette deuxième variante, selon une possibilité, le premier axe, le deuxième axe et le troisième axe sont sensiblement parallèles.In the context of this second variant, according to one possibility, the first axis, the second axis and the third axis are substantially parallel.

Selon une caractéristique additionnelle possible, le premier élément de contact présente une forme symétrique par rapport à un premier plan de symétrie et/ou le troisième élément de contact présente une forme symétrique par rapport à un deuxième plan de symétrie.According to a possible additional characteristic, the first contact element has a symmetrical shape with respect to a first plane of symmetry and / or the third contact element has a symmetrical shape with respect to a second plane of symmetry.

Selon une caractéristique additionnelle possible, le premier axe est perpendiculaire au premier plan de symétrie et/ou le deuxième axe est perpendiculaire au deuxième plan de symétrie.According to a possible additional characteristic, the first axis is perpendicular to the first plane of symmetry and / or the second axis is perpendicular to the second plane of symmetry.

Selon une possibilité, le premier plan de symétrie est parallèle au deuxième plan de symétrie.According to one possibility, the first plane of symmetry is parallel to the second plane of symmetry.

Dans le cadre d'une troisième variante, selon une caractéristique additionnelle possible, le premier plan de symétrie et le deuxième plan de symétrie sont coplanaires.In the context of a third variant, according to a possible additional characteristic, the first plane of symmetry and the second plane of symmetry are coplanar.

Selon une possibilité, le premier élément de contact est apte à effectuer une première rotation autour du premier axe pour être amené en contact avec le deuxième élément de contact et le troisième élément de contact est apte à effectuer une deuxième rotation autour du deuxième axe pour être amené en contact avec le quatrième élément de contact, le sens de la première rotation étant le même que celui de la deuxième rotation.According to one possibility, the first contact element is able to perform a first rotation around the first axis to be brought into contact with the second contact element and the third contact element is able to perform a second rotation around the second axis to be brought into contact with the fourth contact element, the direction of the first rotation being the same as that of the second rotation.

Ainsi, les performances de coupure et la fiabilité du mécanisme de l'appareil électrique sont améliorées.Thus, the breaking performance and the reliability of the mechanism of the electrical apparatus are improved.

Selon une possibilité, le premier courant présente une intensité supérieure à 1,13 fois un courant nominal de l'appareil électrique, préférentiellement entre 1,13 et 2,55 fois le courant nominal de l'appareil électrique, plus préférentiellement environs 1,45 fois le courant nominal de l'appareil électrique et/ou le deuxième courant présente une intensité entre 2,55 et 20 fois le courant nominal de l'appareil électrique, préférentiellement entre 4 et 12 fois le courant nominal de l'appareil électrique.According to one possibility, the first current has an intensity greater than 1.13 times a nominal current of the electrical appliance, preferably between 1.13 and 2.55 times the nominal current of the electrical appliance, more preferably around 1.45 times the nominal current of the electrical appliance and / or the second current has an intensity between 2.55 and 20 times the nominal current of the electrical appliance, preferably between 4 and 12 times the nominal current of the electrical appliance.

De préférence, le courant nominal de l'appareil électrique peut valoir entre environs 6Ampères et environs 125 Ampères.Preferably, the nominal current of the electrical device can be between around 6 amps and around 125 amps.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à deux modes de réalisation préférés, donnés à titre d'exemple non limitatif, et expliqués avec référence aux dessins schématiques annexés, dans lesquels :

  • la figure 1 est un schéma électrique du premier et du deuxième circuit du disjoncteur conforme à l'invention, dans un mode de réalisation préférentiel du premier circuit et du deuxième circuit;
  • la figure 2 est une vue schématique d'un disjoncteur conforme à l'invention, dans un premier mode de réalisation dudit disjoncteur;
  • les figures 3 et 4 sont des vues en coupe du disjoncteur selon le premier mode de réalisation, dans lequel le porte-contact prend une première position ;
  • les figures 5 et 6 sont des vues en coupe du disjoncteur selon le premier mode de réalisation, dans lequel le porte-contact prend une deuxième position ;
  • les figures 7 et 8 sont des vues en coupe du disjoncteur selon le premier mode de réalisation, dans lequel le porte-contact prend une troisième position ;
  • la figure 9 est une vue en coupe du disjoncteur selon le premier mode de réalisation, dans lequel le porte-contact prend une quatrième position ;
  • la figure 10 est une vue schématique d'un disjoncteur conforme à l'invention, dans un deuxième mode de réalisation dudit disjoncteur ;
  • la figure 11 est une vue en perspective du premier élément de contact et du troisième élément de contact du disjoncteur représenté sur la figure 10;
  • la figure 12 est une vue en coupe du disjoncteur représenté sur la figure 10, dans lequel le porte-contact prend la première position ;
  • la figure 13 est une vue en coupe du disjoncteur selon le deuxième mode de réalisation, dans lequel le porte-contact prend la deuxième position ;
  • la figure 14 est une vue en coupe du disjoncteur selon le deuxième mode de réalisation, dans lequel le porte-contact prend la troisième position ;
  • la figure 15 est une vue en coupe du disjoncteur selon le deuxième mode de réalisation, dans lequel le porte-contact prend la quatrième position ;
The invention will be better understood from the following description, which relates to two preferred embodiments, given by way of nonlimiting example, and explained with reference to the appended schematic drawings, in which:
  • the figure 1 is an electrical diagram of the first and second circuit of the circuit breaker according to the invention, in a preferred embodiment of the first circuit and the second circuit;
  • the figure 2 is a schematic view of a circuit breaker according to the invention, in a first embodiment of said circuit breaker;
  • the figures 3 and 4 are sectional views of the circuit breaker according to the first embodiment, in which the contact carrier takes a first position;
  • the Figures 5 and 6 are sectional views of the circuit breaker according to the first embodiment, in which the contact carrier takes a second position;
  • the Figures 7 and 8 are sectional views of the circuit breaker according to the first embodiment, in which the contact carrier takes a third position;
  • the figure 9 is a sectional view of the circuit breaker according to the first embodiment, in which the contact carrier takes a fourth position;
  • the figure 10 is a schematic view of a circuit breaker according to the invention, in a second embodiment of said circuit breaker;
  • the figure 11 is a perspective view of the first contact element and the third contact element of the circuit breaker shown in the figure 10 ;
  • the figure 12 is a sectional view of the circuit breaker shown in the figure 10 , in which the contact carrier takes the first position;
  • the figure 13 is a sectional view of the circuit breaker according to the second embodiment, in which the contact carrier takes the second position;
  • the figure 14 is a sectional view of the circuit breaker according to the second embodiment, in which the contact carrier takes the third position;
  • the figure 15 is a sectional view of the circuit breaker according to the second embodiment, in which the contact carrier takes the fourth position;

La figure 1 montre un schéma électrique du disjoncteur conforme à l'invention. Le disjoncteur 10 comprend un premier circuit 40 comportant un premier contact 41 et un deuxième circuit 60 étant monté en parallèle avec le premier circuit 40 et comportant un deuxième contact 61 et un bilame 64. Le premier circuit 40 et le deuxième circuit 60 sont montés en série avec une bobine 81 d'un actionneur magnétique 80. Le premier contact 41 comprend un premier élément de contact 42 et un deuxième élément de contact 43. Le deuxième contact 61 comprend un troisième élément de contact 62 et un quatrième élément de contact 63.The figure 1 shows an electrical diagram of the circuit breaker according to the invention. The circuit breaker 10 comprises a first circuit 40 comprising a first contact 41 and a second circuit 60 being mounted in parallel with the first circuit 40 and comprising a second contact 61 and a bimetallic strip 64. The first circuit 40 and the second circuit 60 are mounted in series with a coil 81 of a magnetic actuator 80. The first contact 41 comprises a first contact element 42 and a second contact element 43. The second contact 61 comprises a third contact element 62 and a fourth contact element 63.

L'actionneur magnétique 80 est apte à ouvrir le premier contact 41 en écartant le premier élément de contact 42 du deuxième élément de contact 43 lorsqu'un premier courant est appliqué à la bobine 81. L'actionneur magnétique 80 est en outre apte à ouvrir le deuxième contact 61 en écartant le troisième élément de contact 62 du quatrième élément de contact 63 lorsqu'un deuxième courant est appliqué à la bobine 81.The magnetic actuator 80 is able to open the first contact 41 by moving the first contact element 42 away from the second contact element 43 when a first current is applied to the coil 81. The magnetic actuator 80 is also able to open the second contact 61 by moving the third contact element 62 away from the fourth contact element 63 when a second current is applied to the coil 81.

Selon une caractéristique additionnelle possible, l'actionneur magnétique 80 peut être un actionneur à double étage et comprendre au moins deux étages, c'est-à-dire un premier étage et un deuxième étage.According to a possible additional characteristic, the magnetic actuator 80 can be a double-stage actuator and comprise at least two stages, that is to say a first stage and a second stage.

Selon une possibilité, le premier étage dudit actionneur magnétique 80 peut être apte à ouvrir le premier contact 41 en écartant le premier élément de contact 42 du deuxième élément 43 de contact lorsque le premier courant est appliqué à la bobine 81 et/ou le deuxième étage dudit actionneur magnétique 80 peut être apte à ouvrir le deuxième contact 61 en écartant le troisième élément de contact 62 du quatrième élément de contact 63 lorsque un deuxième courant est appliqué à la bobine 81.According to one possibility, the first stage of said magnetic actuator 80 may be able to open the first contact 41 by spreading the first contact element 42 from the second contact element 43 when the first current is applied to the coil 81 and / or the second stage of said magnetic actuator 80 may be able to open the second contact 61 by moving the third contact element 62 away from the fourth contact element 63 when a second current is applied to the coil 81.

L'appareil électrique 10 peut en outre comprendre une serrure mécanique 12 apte à agir mécaniquement sur le premier élément de contact 42 et le troisième élément de contact 62 de sorte à pouvoir ouvrir et/ou fermer le premier contact 41 et/ou le deuxième contact 61.The electrical appliance 10 may further comprise a mechanical lock 12 capable of acting mechanically on the first contact element 42 and the third contact element 62 so as to be able to open and / or close the first contact 41 and / or the second contact 61.

Le bilame 64 peut être apte à agir mécaniquement sur la serrure mécanique 12 pour provoquer l'ouverture du premier contact 41 et/ou du deuxième contact 61.The bimetallic strip 64 may be able to act mechanically on the mechanical lock 12 to cause the opening of the first contact 41 and / or of the second contact 61.

La serrure mécanique 12 peut être également reliée mécaniquement à un levier 14 de sorte à permettre au levier 14 d'agir sur la serrure mécanique 12 pour que celle-ci provoque l'ouverture du premier contact 41 et/ou du deuxième contact 61.The mechanical lock 12 can also be mechanically connected to a lever 14 so as to allow the lever 14 to act on the mechanical lock 12 so that the latter causes the opening of the first contact 41 and / or of the second contact 61.

Comme illustré dans les figures 3 à 10 et 12 à 15, l'appareil électrique 10 est pourvu d'un boîtier 20, dans lequel sont de préférence agencés le premier circuit 40, le deuxième circuit 60, la serrure mécanique 12, l'actionneur magnétique 80 et/ou le porte-contact 100. Le levier 14 peut également être, du moins partiellement, compris dans le boîtier 20.As illustrated in figures 3 to 10 and 12 to 15 , the electrical appliance 10 is provided with a housing 20, in which are preferably arranged the first circuit 40, the second circuit 60, the mechanical lock 12, the magnetic actuator 80 and / or the contact carrier 100. The lever 14 can also be, at least partially, included in the housing 20.

Comme illustré dans les figures 2 à 15, conformément à l'invention, le porte-contact 100 comprend une première liaison mécanique 101 reliant mécaniquement le premier élément de contact 42 au porte-contact 100, une deuxième liaison mécanique 102 reliant mécaniquement le troisième élément de contact 62 au porte-contact 100 et une troisième liaison mécanique 103 reliant mécaniquement le porte-contact 100 au boîtier 20. Le porte-contact 100 permet le mouvement relatif du premier élément de contact 42 et du troisième élément de contact 62 par rapport au boîtier 20.As illustrated in figures 2 to 15 , in accordance with the invention, the contact carrier 100 comprises a first mechanical connection 101 mechanically connecting the first contact element 42 to the contact carrier 100, a second mechanical connection 102 mechanically connecting the third contact element 62 to the contact carrier 100 and a third mechanical link 103 mechanically connecting the contact carrier 100 to the housing 20. The contact carrier 100 allows the relative movement of the first contact element 42 and the third contact element 62 relative to the housing 20.

La première liaison mécanique 101 et/ou la deuxième liaison mécanique 102 et/ou la troisième liaison mécanique 103 peuvent être des liaisons mécaniques avec un degré de liberté.The first mechanical connection 101 and / or the second mechanical connection 102 and / or the third mechanical connection 103 can be mechanical connections with a degree of freedom.

Selon les deux modes de réalisation divulgués dans les figures, la première liaison mécanique 101 permet une rotation du premier élément de contact 42 par rapport au porte-contact 100 autour d'un premier axe A1. La deuxième liaison mécanique 102 permet une rotation du troisième élément de contact 62 par rapport au porte-contact 100 autour d'un deuxième axe A2. L'agencement du premier axe A1 et du deuxième axe A2 est visible dans les figures 2 à 9 et 12 à 15.According to the two embodiments disclosed in the figures, the first mechanical link 101 allows rotation of the first element contact 42 relative to the contact carrier 100 about a first axis A1. The second mechanical link 102 allows rotation of the third contact element 62 relative to the contact carrier 100 about a second axis A2. The arrangement of the first axis A1 and the second axis A2 is visible in the figures 2 to 9 and 12 to 15 .

La troisième liaison mécanique 103 permet une rotation du porte-contact 100 par rapport au boîtier 20 autour d'un troisième axe A3. L'Agencement du troisième axe A3 est visible dans les figures 2 à 9 et 12 à 15.The third mechanical link 103 allows rotation of the contact carrier 100 relative to the housing 20 around a third axis A3. The arrangement of the third axis A3 is visible in the figures 2 to 9 and 12 to 15 .

Selon une possibilité des deux modes de réalisation divulgués dans les figures, le premier axe A1, le deuxième axe A2 et le troisième axe A3 sont sensiblement parallèles. De préférence, le premier axe A1, le deuxième axe A2 et/ou le troisième axe A3 sont en outre sensiblement colinéaires.According to one possibility of the two embodiments disclosed in the figures, the first axis A1, the second axis A2 and the third axis A3 are substantially parallel. Preferably, the first axis A1, the second axis A2 and / or the third axis A3 are also substantially collinear.

De préférence, le premier élément de contact 42 présente une forme symétrique par rapport à un premier plan de symétrie. De préférence, le troisième élément de contact 62 présente une forme symétrique par rapport à un deuxième plan de symétrie.Preferably, the first contact element 42 has a symmetrical shape with respect to a first plane of symmetry. Preferably, the third contact element 62 has a symmetrical shape with respect to a second plane of symmetry.

Si on se réfère aux figures 3 et 4 , on peut voir que le porte-contact 100 prend une première position. En outre, on peut voir plus particulièrement sur la la figure 3, lorsque le porte-contact 100 prend la première position, le premier élément de contact 42 est en contact avec le deuxième élément de contact 43.If we refer to figures 3 and 4 , we can see that the contact carrier 100 takes a first position. In addition, we can see more particularly on the figure 3 , when the contact carrier 100 takes the first position, the first contact element 42 is in contact with the second contact element 43.

Le premier élément de contact 42 peut comprendre un premier ressort 44 et le troisième élément 62 contact comprend un deuxième ressort 65. Le premier ressort 44 peut comprendre une première extrémité 44a reliée au premier élément de contact 42 et une deuxième extrémité 44b reliée au porte-contact 100. Le deuxième ressort 65 peut comprenadre une première extrémité 65a reliée au troisième élément de contact 62 et une deuxième extrémité 65b reliée au porte-contact 100.The first contact element 42 can comprise a first spring 44 and the third contact element 62 comprises a second spring 65. The first spring 44 can comprise a first end 44a connected to the first contact element 42 and a second end 44b connected to the holder. contact 100. The second spring 65 can comprise a first end 65a connected to the third contact element 62 and a second end 65b connected to the contact holder 100.

Comme le divulgue la figure 4, le troisième élément de contact 62 est en contact avec le quatrième élément de contact 63. Le premier ressort 44, qui est relié par sa première extrémité 44a au premier élément de contact 42 et par sa deuxième extrémité 44b au porte-contact 100 et le deuxième ressort 65, qui est relié par sa première extrémité 65a au troisième élément de contact 62 et par sa deuxième extrémité 65b au porte-contact 100, agissent, de préférence, dans des directions sensiblement parallèles.As the figure 4 , the third contact element 62 is in contact with the fourth contact element 63. The first spring 44, which is connected by its first end 44a to the first contact element 42 and by its second end 44b to the contact carrier 100 and the second spring 65, which is connected by its first end 65a to the third contact element 62 and by its second end 65b to the contact carrier 100, preferably act in substantially parallel directions.

L'appareil électrique 10 peut en outre comprendre un troisième ressort 104. Le troisième ressort 104 peut être relié par une première extrémité 104a au porte-contact 100 et par une deuxième extrémité 104b au boîtier 20. Le troisième ressort 104 peut permetre d'inertier le basculement du porte-contact 100.The electrical appliance 10 can also comprise a third spring 104. The third spring 104 can be connected by a first end 104a to the contact carrier 100 and by a second end 104b to the housing 20. The third spring 104 can allow inertia tilting of the contact carrier 100.

Si on se réfère maintenant auxfigures 5 et 6, on peut voir que le porte-contact 100 prend une deuxième position dans laquelle le premier élément de contact 42 est distant du deuxième élément de contact 43 et dans laquelle le troisième élément de contact 62 est en contact avec le quatrième élément de contact 63.Referring now to Figures 5 and 6, it can be seen that the contact carrier 100 takes a second position in which the first contact element 42 is distant from the second contact element 43 and in which the third contact element 62 is in contact with the fourth contact element 63.

Le porte-contact 100 peut, en outre, comprendre un élément de basculement 106. L'élément de basculement 106 peut être monté rotatif par rapport au troisième axe A3. L'élément de basculement 106 peut être relié mécaniquement au porte-contact 100 et/ou au boîtier 20 et peut permettre un mouvement relatif par rapport au porte-contact 100 et/ou au boîtier 20. L'élément de basculement 106 peut comprendre une première saillie 107 pouvant venir en appui contre le premier élément de contact 42 pour écarter celui-ci du deuxième élément de contact 43. Cette position est divulguée dans la figure 5. Lorsque la première saillie 107 vient en appui contre le premier élément de contact 42, la première saillie 107 agit en comprimant le premier ressort 44.The contact carrier 100 can also comprise a tilting element 106. The tilting element 106 can be rotatably mounted relative to the third axis A3. The tilting element 106 may be mechanically connected to the contact carrier 100 and / or to the housing 20 and may allow relative movement relative to the contact carrier 100 and / or to the housing 20. The tilting element 106 may include a first projection 107 which can come to bear against the first contact element 42 to move it away from the second contact element 43. This position is disclosed in the figure 5 . When the first projection 107 bears against the first contact element 42, the first projection 107 acts by compressing the first spring 44.

Comme le divulgue la figure 6, le troisième élément de contact 62 et le quatrième élément de contact 63 sont en contact lorsque le porte-contact 100 prend la deuxième position.As the figure 6 , the third contact element 62 and the fourth contact element 63 are in contact when the contact carrier 100 takes the second position.

Si on se réfère aux figures 7 et 8, on peut voir que l'élément de basculement 106, qui prend une troisième position, vient en appui contre le premier élément de contact 42 et le troisième élément de contact 62 pour écarter le premier élément de contact 42 du deuxième élément de contact 43 et le troisième élément de contact 62 du quatrième élément de contact 63. Dans cette troisième position, l'élément de basculement 106 est tourné dans le sens anti-horaire par rapport aux autres éléments du porte-contact 100.If we refer to Figures 7 and 8 , it can be seen that the tilting element 106, which takes a third position, bears against the first contact element 42 and the third contact element 62 to move the first contact element 42 away from the second contact element 43 and the third contact element 62 of the fourth contact element 63. In this third position, the tilting element 106 is turned anti-clockwise relative to the other elements of the contact carrier 100.

Le porte-contact 100, comme on peut le voir sur la figure 9, peut prendre une quatrième position dans laquelle le premier élément de contact 42 est écarté du deuxième élément de contact 43 et dans laquelle le troisième élément de contact 62 est écarté du quatrième élément de contact 63. Le porte-contact 100 prend cette quatrième position suite à une manipulation du levier 14.Contact holder 100, as can be seen on the figure 9 , can take a fourth position in which the first contact element 42 is moved away from the second contact element 43 and in which the third contact element 62 is moved away from the fourth contact element 63. The contact carrier 100 takes this fourth position continued manipulation of the lever 14.

Comme divulgué dans les figures 3 à 9, l'appareil électrique 10 selon le premier mode de réalisation comprend un actionneur magnétique 80 apte à ouvrir le premier contact 41 en écartant le premier élément de contact 42 du deuxième élément de contact 43 lorsqu'un premier courant est appliqué à la bobine 81, et apte à ouvrir le deuxième contact 61 en écartant le troisième élément de contact 62 du quatrième élément de contact 63 lorsqu'un deuxième courant est appliqué à la bobine 81. L'actionneur magnétique 80 peut comprendre un premier noyau mobile 82, un deuxième noyau mobile 84 et une tige d'actionnement 86. Le premier noyau mobile 82 et le deuxième noyau mobile 84 peuvent venir en appui contre la tige d'actionnement 86 pour déplacer cette dernière pour, par exemple, déplacer le porte-contact 100 depuis la première position vers la deuxième position, depuis la deuxième position vers la troisième position et/ou depuis la troisième position vers la quatrième position. Le premier noyau mobile 82 peut venir en appui contre une première face d'appui 86a de la tige d'actionnement 86. Le deuxième noyau mobile 84 peut venir en appui contre une deuxième face d'appui 86b de la tige d'actionnement 86.As disclosed in figures 3 to 9 the electrical device 10 according to the first embodiment comprises a magnetic actuator 80 capable of opening the first contact 41 by moving the first contact element 42 away from the second contact element 43 when a first current is applied to the coil 81, and able to open the second contact 61 by moving the third contact element 62 away from the fourth contact element 63 when a second current is applied to the coil 81. The magnetic actuator 80 may comprise a first movable core 82, a second core movable 84 and an actuating rod 86. The first movable core 82 and the second movable core 84 can bear against the actuating rod 86 to move the latter to, for example, move the contact carrier 100 from the first position to the second position, from the second position to the third position and / or from the third position to the fourth position. The first movable core 82 can come to bear against a first bearing face 86a of the actuating rod 86. The second movable core 84 can come to bear against a second bearing face 86b of the actuating rod 86.

Le premier noyau mobile 82 est apte à être déplacé lorsque le premier courant est appliqué à la bobine 81, pour déplacer le porte-contact 100 depuis la première position vers la deuxième position. Le deuxième noyau mobile 84 est apte à être déplacé lorsque le deuxième courant est appliqué à la bobine 81, pour déplacer le porte-contact 100 depuis la deuxième position vers la troisième position. Lorsque le premier noyau mobile 82 est déplacé suite à une application du premier courant à la bobine 81, le premier noyau mobile 82 vient en appui contre la première face d'appui 86a de la tige d'actionnement 86 pour déplacer celle-ci vers le porte-contact 100 et/ou l'élément de basculement 106. Lorsque le deuxième noyau mobile 84 est déplacé suite à une application du premier courant à la bobine 81, le premier noyau mobile 82 vient en appui contre la deuxième face d'appui 86b de la tige d'actionnement 86 pour déplacer celle-ci vers le porte-contact 100 et/ou l'élément de basculement 106.The first movable core 82 is able to be moved when the first current is applied to the coil 81, to move the contact carrier 100 from the first position to the second position. The second movable core 84 is able to be moved when the second current is applied to the coil 81, to move the contact carrier 100 from the second position to the third position. When the first movable core 82 is moved following an application of the first current to the coil 81, the first movable core 82 comes to bear against the first bearing face 86a of the actuating rod 86 to move the latter towards the contact carrier 100 and / or the tilting element 106. When the second movable core 84 is moved following an application of the first current to the coil 81, the first movable core 82 comes to bear against the second bearing face 86b of the actuating rod 86 to move the latter towards the contact carrier 100 and / or the tilting element 106.

Dans les figures 5 et 6, le premier noyau mobile 82 est déplacé suite à une application du premier courant à la bobine 81. Dans cette position, le premier noyau mobile 82 a été déplacé pour d'abord venir en contact avec la première face d'appui 86a et pour ensuite pousser la tige d'actionnement 86 vers l'extérieur de l'actionneur magnétique 80 en direction du porte-contact 100 et/ou de l'élément de basculement 106. Une pointe 87 de la tige d'actionnement 86 peut venir en appui contre l'élément de basculement 106 et/ou le porte-contact 100 pour faire basculer l'élément de basculement 106 et/ou le porte-contact 100. Dans la position, où le premier noyau 82 de l'actionneur magnétique 80 est déplacé, la pointe 87 de la tige d'actionnement 86 vient en appui contre l'élément de basculement 106 et/ou le porte-contact 100 pour éloigner le premier élément de contact 42 du deuxième élément de contact 43 en déplaçant le porte-contact 100 depuis la première position vers la deuxième position. Dans cette deuxième position, le troisième élément de contact 62 reste en contact avec le quatrième élément de contact 63.In the Figures 5 and 6 , the first mobile core 82 is moved following an application of the first current to the coil 81. In this position, the first mobile core 82 has been moved to first come into contact with the first bearing face 86a and then push the actuating rod 86 towards the outside of the magnetic actuator 80 in the direction of the contact carrier 100 and / or of the tilting element 106. A tip 87 of the actuating rod 86 can come to bear against the tilting element 106 and / or the contact holder 100 to tilt the tilting element 106 and / or the contact holder 100. In the position, where the first core 82 of the magnetic actuator 80 is moved, the tip 87 of the actuating rod 86 bears against the tilting element 106 and / or the contact carrier 100 to distance the first contact element 42 of the second contact element 43 by moving the contact carrier 100 from the first position to the second position. In this second position, the third contact element 62 remains in contact with the fourth contact element 63.

Si on se réfère aux figures 11 à 15, on peut voir que, dans un deuxième mode de réalisation de l'appareil électrique 10, le premier plan de symétrie et le deuxième plan de symétrie sont coplanaires. Comme il découle en particulier de la figure 11, le troisième élément de contact 62 peut présenter la forme d'une fourche ou d'un diapason comprenant un premier bras 62a, un deuxième bras 62b s'étendant sensiblement en parallèle du premier bras 62a et une branche 62c pouvant venir en contact avec le quatrième élément de contact 63. Le premier élément de contact 42 peut s'étendre sensiblement en parallèle des deux bras 62a, 62b et en prolongation de la branche 62c. Le premier élément de contact 42 peut être agencé entre les deux bras 62a, 62b du troisième élément de contact et peut présenter de préférence une forme de ruban.If we refer to Figures 11 to 15 , it can be seen that, in a second embodiment of the electrical apparatus 10, the first plane of symmetry and the second plane of symmetry are coplanar. As it follows in particular from the figure 11 , the third contact element 62 may have the shape of a fork or a tuning fork comprising a first arm 62a, a second arm 62b extending substantially in parallel with the first arm 62a and a branch 62c which can come into contact with the fourth contact element 63. The first contact element 42 may extend substantially in parallel with the two arms 62a, 62b and in extension of the branch 62c. The first contact element 42 can be arranged between the two arms 62a, 62b of the third contact element and can preferably have a ribbon shape.

L'appareil électrique 10 selon le deuxième mode de réalisation peut comprendre un actionneur magnétique 80 identique à celui du premier mode de réalisation.The electrical device 10 according to the second embodiment may comprise a magnetic actuator 80 identical to that of the first embodiment.

Si on se réfère plus particulièrement à la figure 12, on peut voir que le porte-contact 100 prend la première position et que le premier élément de contact 42 est en contact avec le deuxième élément de contact 43 et que le troisième élément de contact 62 est en contact avec le quatrième élément de contact 63.If we refer more specifically to the figure 12 , it can be seen that the contact carrier 100 takes the first position and that the first contact element 42 is in contact with the second contact element 43 and that the third contact element 62 is in contact with the fourth contact element 63 .

Si on se réfère à la figure 13, on peut voir que le porte-contact 100 prend la deuxième position dans laquelle le premier élément de contact 42 est écarté du deuxième élément de contact 43, tandis que le troisième élément de contact 62 reste en contact avec le quatrième élément de contact 63. Dans cette deuxième position, une saillie 107 de l'élément de basculement 106 est en appui contre le premier élément de contact 42 et écarte celui-ci du deuxième élément de contact 43. Pour ceci, la saillie 107 s'étend à travers l'espace se situant entre le premier bras 62a et le deuxième bras 62b.If we refer to the figure 13 , it can be seen that the contact carrier 100 takes the second position in which the first contact element 42 is spaced from the second contact element 43, while the third contact element 62 remains in contact with the fourth contact element 63. In this second position, a projection 107 of the tilting element 106 is in abutment against the first contact element 42 and separates the latter from the second contact element 43. For this, the projection 107 extends through the space between the first arm 62a and the second arm 62b.

De part et de d'autre de la saillie 107, l'élément de basculement 106 est doté d'un tronçon d'appui 108 pouvant chacun venir en appui contre un des bras 62a, 62b du troisième élément de contact 62 pour écarter le troisième élément de contact 62 du quatrième élément contact 63.On either side of the projection 107, the tilting element 106 is provided with a support section 108 which can each come to bear against one of the arms 62a, 62b of the third contact element 62 to spread the third contact element 62 of the fourth contact element 63.

Dans la figure 14 montrant le porte-contact 100 dans la troisième position, ces tronçons d'appui 108 sont chacun en appui contre l'un des deux bras 62a, 62b.In the figure 14 showing the contact carrier 100 in the third position, these support sections 108 are each in abutment against one of the two arms 62a, 62b.

Dans la figure 15 divulguant le porte-contact 100 dans la quatrième position, le premier élément de contact 42 est écarté du deuxième élément de contact 43 et le troisième élément de contact 62 est écarté du quatrième élément de contact 63. Dans cette figure 15, la prise de cette quatrième position est due à une manipulation du levier 14.In the figure 15 disclosing the contact carrier 100 in the fourth position, the first contact element 42 is moved away from the second contact element 43 and the third contact element 62 is moved away from the fourth contact element 63. In this figure 15 , the taking of this fourth position is due to manipulation of the lever 14.

Dans les deux modes de réalisation, le premier ressort 44 et le deuxième ressort 65 agissent respectivement sur le premier élément de contact 42 et le troisième élément de contact 62 de sorte à mettre en appui le premier élément de contact 42 contre le deuxième élément de contact 43 et le troisième élément de contact 62 contre le quatrième élément de contact 63. A cet effet, le premier ressort 44 et le deuxième ressort 65 peuvent agir dans des directions sensiblement parallèles, soit dans le même sens lorsque le premier ressort 44 et le deuxième ressort 65 sont disposés du même côté par rapport aux premier et second axes A1, A2, soit dans le sens opposé lorsqu'ils se trouvent de part et d'autre du premier axe A1 et du deuxième axe A2, comme c'est, par exemple, le cas pour le deuxième mode de réalisation de l'invention.In the two embodiments, the first spring 44 and the second spring 65 act respectively on the first contact element 42 and the third contact element 62 so as to bear the first contact element 42 against the second contact element 43 and the third contact element 62 against the fourth contact element 63. To this end, the first spring 44 and the second spring 65 can act in substantially parallel directions, either in the same direction when the first spring 44 and the second spring 65 are arranged on the same side with respect to the first and second axes A1, A2, either in the opposite direction when they are on either side of the first axis A1 and the second axis A2, as is, by example, the case for the second embodiment of the invention.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux dessins annexés. Des modifications restent possibles, sans sortir pour autant du domaine de protection de l'invention défini par les revendications.Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, without departing from the scope of protection of the invention defined by the claims.

Claims (11)

  1. Electrical device of circuit breaker type comprising a housing (20), a first circuit (40) comprising a first contact (41) and a second circuit (60) mounted in parallel with the first circuit (40) and comprising a second contact (61) and a bimetallic strip (64),
    said first circuit (40) being mounted in series with a coil (81) of a magnetic actuator (80),
    said first contact (41) comprising a first contact element (42) and a second contact element (43),
    said second contact (61) comprising a third contact element (62) and a fourth contact element (63),
    said magnetic actuator (80) being able to open the first contact (41) by separating the first contact element (42) from the second contact element (43) when a first current is applied to the coil (81) and being able to open the second contact (61) by separating the third contact element (62) from the fourth contact element (63) when a second current is applied to the coil (81),
    a contact-holder (100), and in that the contact holder (100) comprises a first mechanical link (101) mechanically linking the first contact element (42) to the contact-holder, a second mechanical link (102) mechanically linking the third contact element (62) to the contact-holder (100) and a third mechanical link (103) mechanically linking the contact-holder (100) to the housing (20), the contact-holder (100) allowing the relative movement of the first contact element (42) and of the third contact element with respect to the housing (20),
    said first contact element (42) comprising a first spring (44), said first spring (44) comprising a first end (44a) linked to the first contact element (42) and a second end (44b) linked to the contact-holder (100),
    characterized in that said second circuit (60) is mounted in series with the coil (81) of said magnetic actuator (80), and
    in that the third contact element (62) comprises a second spring (65),
    said second spring (65) comprising a first end (65a) linked to the third contact element (62) and a second end (65b) linked to the contact-holder (100).
  2. Electrical device according to Claim 1, characterized in that the first mechanical link (101) and/or the second mechanical link (102) and/or the third mechanical link (103) is(are) the mechanical link or links with one degree of freedom.
  3. Electrical device according to either one of Claims 1 and 2, characterized in that the first mechanical link (101) allows a rotation of the first contact element (42) with respect to the contact-holder (100) about a first axis (A1) and/or in that the second mechanical link (102) allows a rotation of the third contact element (62) with respect to the contact-holder (100) about a second axis (A2) and/or in that the third mechanical link (103) allows a rotation of the contact-holder (100) with respect to the housing (20) about a third axis (A3).
  4. Electrical device according to Claim 3, characterized in that the first axis (A1), the second axis (A2) and the third axis (A3) are substantially parallel.
  5. Electrical device according to one of Claims 3 and 4, characterized in that the first axis (A1) and the second axis (A2) are substantially colinear.
  6. Electrical device according to any one of Claims 3 to 5, characterized in that the first contact element (42) is able to perform a first rotation about the first axis (A1) to be brought into contact with the second contact element (43) and the third contact element (62) is able to perform a second rotation about the second axis (A2) to be brought into contact with the fourth contact element (63), the direction of the first rotation being the same as that of the second rotation.
  7. Electrical device according to any one of Claims 1 to 6, characterized in that the first contact element (42) has a symmetrical form with respect to a first plane of symmetry and/or the third contact element (62) has a symmetrical form with respect to a second plane of symmetry.
  8. Electrical device according to one of Claims 3 to 6 and Claim 7, characterized in that the first axis (A1) is at right angles to the first plane of symmetry and/or the second axis (A2) is at right angles to the second plane of symmetry.
  9. Electrical device according to either one of Claims 7 and 8, characterized in that the first plane of symmetry is parallel to the second plane of symmetry.
  10. Electrical device according to Claim 9, characterized in that the first plane of symmetry and the second plane symmetry are coplanar.
  11. Electrical device according to any one of Claims 1 to 10, characterized in that the first current has an intensity greater than 1.13 times a rated current of the electrical device, preferentially between 1.13 and 2.55 times the rated current of the electrical device, more preferentially approximately equal to 1.45 times the rated current of the electrical device and/or the second current has an intensity between 2.55 and 20 times the rated current of the electrical device, preferentially between 4 and 12 times the rated current of the electrical device.
EP17720188.6A 2016-04-04 2017-03-30 Electrical device of circuit breaker type Active EP3300532B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1652943A FR3049760B1 (en) 2016-04-04 2016-04-04 CIRCUIT BREAKER TYPE ELECTRICAL APPARATUS
PCT/FR2017/050730 WO2017174901A1 (en) 2016-04-04 2017-03-30 Electrical device of circuit breaker type

Publications (2)

Publication Number Publication Date
EP3300532A1 EP3300532A1 (en) 2018-04-04
EP3300532B1 true EP3300532B1 (en) 2020-06-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17720188.6A Active EP3300532B1 (en) 2016-04-04 2017-03-30 Electrical device of circuit breaker type

Country Status (5)

Country Link
EP (1) EP3300532B1 (en)
CN (1) CN109074995A (en)
AU (1) AU2017245795A1 (en)
FR (1) FR3049760B1 (en)
WO (1) WO2017174901A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714907A (en) * 1985-07-31 1987-12-22 Merlin Gerin Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release
SI22187A (en) * 2005-12-29 2007-06-30 Eti Elektroelement D.D. Automatic electric switch
SI2223321T1 (en) * 2007-12-24 2015-10-30 Eti Elektroelement D.D. Electric automatic switch
DE102009030158A1 (en) * 2009-06-24 2010-12-30 Smrkolj, Jozef Multipolar electric automatic switch e.g. multipolar line circuit breaker useful in household- and industrial distributions to protect cables and engines, comprises automatic switches, and electrothermal trigger device, and switch latch
EP2330611B1 (en) * 2009-12-04 2012-04-18 HAGER ELECTRO S.A.S. (société par Actions Simplifiée) Selective circuit-breaker
DE102011016933A1 (en) * 2011-04-13 2012-10-18 Jozef Smrkolj Contact device and its drive for protective switching devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3049760A1 (en) 2017-10-06
FR3049760B1 (en) 2019-08-23
CN109074995A (en) 2018-12-21
AU2017245795A1 (en) 2018-11-01
WO2017174901A1 (en) 2017-10-12
EP3300532A1 (en) 2018-04-04

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