EP3297016B1 - Breaking device comprising a resetting organ - Google Patents

Breaking device comprising a resetting organ Download PDF

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Publication number
EP3297016B1
EP3297016B1 EP17191259.5A EP17191259A EP3297016B1 EP 3297016 B1 EP3297016 B1 EP 3297016B1 EP 17191259 A EP17191259 A EP 17191259A EP 3297016 B1 EP3297016 B1 EP 3297016B1
Authority
EP
European Patent Office
Prior art keywords
cut
resetting
axis
trigger
bearing
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
EP17191259.5A
Other languages
German (de)
French (fr)
Other versions
EP3297016A1 (en
Inventor
Frédéric Court
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries 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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Priority to PL17191259T priority Critical patent/PL3297016T3/en
Publication of EP3297016A1 publication Critical patent/EP3297016A1/en
Application granted granted Critical
Publication of EP3297016B1 publication Critical patent/EP3297016B1/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
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/30—Operating parts, e.g. handle not biased to return to a normal position upon removal of operating force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • 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
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/521—Details concerning the lever handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition

Definitions

  • the present invention relates to a cut-off device.
  • cut-off devices comprise a cut-off member and a control mechanism designed to open or close the cut-off member and thus prevent or allow the passage of an electric current through the cut-off member.
  • the control mechanism makes it possible to ensure the opening or closing of the cut-off device according to precise specifications, in particular in terms of speed of opening.
  • a trigger is a module for controlling the opening in the event of detection of an electrical fault, for example if a voltage is higher or lower than predefined thresholds, or a short circuit or an overload current .
  • a moving part of the trigger moves from an initial position to a trigger position to come to actuate the control mechanism, and thus trigger the opening of the cutoff member.
  • such triggers In order to restore the flow of electric current, such triggers must be reset when they were triggered by the detection of a fault, that is to say that the moving part must be returned to its initial position to allow the closure of the cut-off device.
  • Triggers are often provided in the form of optional modules, which allows the switching device to be adapted to many different installations, each type of trigger being provided to trigger the shutdown in response to specific faults. Thus, the same cut-off device frequently includes several triggers of different types.
  • the object of the invention is to propose a cut-off device which is more reliable than the cutting devices of the state of the art.
  • the cut-off device is according to any one of claims 2 to 10.
  • a cutoff device 10 has been shown on the figure 1 .
  • the cut-off device 10 is a circuit breaker.
  • the cut-off device 10 is a three-phase circuit breaker.
  • the cut-off device 10 is a switch such as a three-pole switch or a four-pole switch.
  • the breaking device 10 comprises an envelope, at least one breaking member 15, at least one trigger 20 and a control mechanism 25.
  • the cut-off device 10 has several breaking members 15.
  • the cut-off device 10 comprises three cut-off devices 15, one for each phase.
  • the cut-off device 10 comprises a plurality of triggers 20.
  • the cut-off device 10 comprises two triggers 20.
  • Each cutoff member 15 has an input connection pad 30 and an output pad pad 35.
  • the cutoff member 15 is adapted to switch between a closed position and an open position.
  • the cut-off member 15 When the cut-off member 15 is in the closed position, the cut-off member 15 allows the passage of an electric current between the input connection pad 30 and the output pad pad 35.
  • the cut-off member 15 When the cut-off member 15 is in the open position, the cut-off member 15 prevents the passage of an electric current between the input connection pad 30 and the output pad pad 35.
  • Each cutoff member 15 is configured to be moved between the open position and the closed position by the control mechanism 25.
  • the envelope is configured to isolate the cutoff member 15, the trigger (s) 20 and the control mechanism 25 from the outside of the housing.
  • the envelope delimits a chamber adapted to receive the cut-off member (s) 15, the trigger (s) 20, and the control mechanism 25.
  • the envelope delimits a plurality of clean locations each to receive a trigger 20.
  • the envelope delimits two locations.
  • the envelope is constituted by the meeting of a set of walls carried by separate parts.
  • the cut-off device 10 comprises a cover, at least two partitions and at least one spacer separating two cut-off members 15 from each other and further comprising a wall, and the envelope is formed by the meeting at least of the wall, the two partitions and the lid.
  • the envelope comprises a monobloc housing and a cover.
  • the breaking device 10 comprises a first trigger and a second trigger, each trigger 20 being received in a corresponding location.
  • the first trigger is identified on the figure 1 by a reference 20A and the second trigger by a reference 20B.
  • Each trigger 20 is configured to control the movement of the cutoff member 15 from its closed position to its open position.
  • each trigger 20 comprises a trigger member 40.
  • Each trigger 20 is configured to move the corresponding trigger member 40 between an armed position and a trigger position.
  • Each trigger 20 is removable relative to the envelope.
  • each trigger 20 is able to be extracted from the casing independently of the control mechanism 25.
  • each trigger 20 is able to move the trigger member 40 corresponding from its armed position to its trigger position in response to the detection of an electrical fault.
  • each trigger 20 is adapted to receive from a detector an electrical fault detection signal.
  • the electrical fault is, for example, a short-circuit current, an overload current, or an insulation fault.
  • a trigger 20 is a voltage-free trigger, configured to move the trip member 40 to its trip position if a voltage of the electric current is less than a single predetermined threshold.
  • At least one trigger 20 is a current-release trigger, configured to move the trigger member 40 to its tripping position if a voltage of the electric current is greater than a predetermined threshold.
  • the trigger member 40 is movable relative to the control mechanism 25 between its armed position and its trigger position, and vice versa.
  • the trigger member 40 is configured to control the movement of the cutoff member 15 from its closed position to its open position when the trigger member 40 moves from its armed position to its trigger position.
  • the trigger member 40 is, for example, in the form of a cylinder extending along a main direction DP.
  • the trigger member 40 then has an end face 42 perpendicular to the main direction DP.
  • the end face 42 defines the trigger member 42 along the main direction DP.
  • the trigger member 40 is, for example, movable in translation along its main direction DP between its armed position and its trigger position.
  • the trigger member 40 is rotatable between its armed position and its trigger position.
  • the triggering member 40 When the trigger member 40 is in its armed position, the triggering member 40 is at least partially accommodated in a casing of the trigger 20. When the trigger member 40 is in its armed position, the trigger 20 is clean. to control the switching of the cutoff member 15. For example, when the trigger member 40 is in its armed position, a spring is compressed in the trigger 20. The spring is clean, when released, to move the trigger member 40 from its armed position to its trigger position.
  • the tripping member 40 When the tripping member 40 is in its tripped position, the tripping member 40 is at least partially extracted from the envelope of the trigger 20.
  • the trigger member 40 moves from its armed position to its tripped position, the trigger member 40 moves from within the trigger housing 20 to the outside of the trigger envelope. 20.
  • a reset force Fr is defined for each trigger 20.
  • the resetting force Fr is the minimum value of the force that must be applied to the trigger member 40 of the trigger 20 considered to move the trigger member 40 from its position. trigger to his armed position.
  • the resetting force Fr of the first trigger 20A is different from the resetting force Fr of the second trigger 20B.
  • a reset stroke is further defined for each trigger 20.
  • the resetting stroke is the distance between a point of the trigger member 40 when the trigger member 40 is in the armed position and the same point when the trigger member 40 is in the trigger position.
  • the control mechanism 25 is configured to move the cutoff member 15 between its open position and its closed position.
  • the control mechanism 25 comprises a gripping member 45, at least one switch 50 and a single resetting member 55.
  • the control mechanism 25 comprises a switch 50 for each location of receiving a trigger 20.
  • the gripping member 45 is movable between a first position and a second position with respect to the cut-off member 15.
  • the gripping member 45 is movable by an operator between the first position and the second position to control the displacement of the cutoff member 15 between its open position and its closed position.
  • the gripping member 45 is shown in its first position.
  • the gripping member 45 is further adapted to bear against the resetting member 55 to move the resetting member 55 between a third position and a fourth position.
  • the gripping member 45 comprises a handle 60, also called crankpin.
  • the handle 60 is rotatable relative to the casing around a first axis A1.
  • the handle 60 is configured to bear against the resetting member 55 when the gripping member 45 is moved from its first position to its second position.
  • the handle 60 comprises a handle 65, at least one bearing 70 and at least one arm 75. According to the example of the figure 2 , the handle 60 has two arms 75.
  • the handle 65 is configured to allow an operator to manually move the gripper 45 between its first position and its second position.
  • Each bearing 70 is configured to allow a respective rotational movement between the handle 60 and the other elements of the control mechanism 25.
  • each bearing 70 is adapted to guide an arm 75 in rotation around the first axis A1.
  • the handle 60 comprises a bearing 70 for each arm 75.
  • each bearing 70 is adapted to cooperate with a respective pin extending along the first axis A1 to allow rotation of the controller 60 around of the first axis A1.
  • each bearing 70 is able to cooperate with a single first common shaft at the two bearings 70.
  • the arm (s) 75 (each) connects the handle 65 to the bearing (s) 70.
  • the two arms 75 are made of material and made from a single metal part.
  • Each arm 75 is perpendicular to the first axis A1.
  • each arm 75 is in the form of a plate perpendicular to the first axis A1.
  • each arm 75 has two main faces 80 and a lateral face 85.
  • the two main faces 80 delimit the corresponding arm along the first axis A1.
  • each main face 80 is perpendicular to the first axis A1.
  • the lateral face 85 interconnects the two main faces 80.
  • the lateral face 85 delimits the corresponding arm 75 in a plane perpendicular to the first axis A1.
  • a portion of the side face 85 forms a bearing face 90.
  • the bearing face 90 is configured to bear against the resetting member 55 when the gripping member 45 is moved to its second position.
  • the bearing face 90 is concave.
  • a first distance d1 and a first angle are defined for each point of the bearing face 90.
  • the first distance d1 is the distance between the point considered and the point of the first axis A1 closest to the point considered.
  • the first angle is the angle between the tangent at the point considered at the bearing face 90 and a straight line connecting the point considered to the first axis A1.
  • Each tangent belongs to a plane perpendicular to the first axis A1.
  • the first angle increases with the first distance d1.
  • a segment connecting the two points considered is formed of points each belonging to the bearing face 90 or not belonging to the arm 75.
  • the bearing face 90 comprises two facets F1 and F2, each facet F1, F2 being planar and the two facets F1, F2 defining, in a plane perpendicular to the first axis A1, a second angle whose opening is directed to the outside of the arm 75.
  • the second angle has a value, for example, between 90 degrees (°) and 180 degrees.
  • the first angle increases as we move from the first facet F1 to the second facet F2, which is farther from the first axis A1 than the first facet F1.
  • the second angle is a function of the first distance d1 defined by two affine functions, each affine function being defined over a range of first distances d1 respectively, the two ranges being successive, and the direction coefficient of the function affine corresponding to the range farthest from the first axis A1 is strictly greater than the director of the other affine function.
  • the second angle is a function of the first distance d1 whose second derivative is strictly positive.
  • Each switch 50 is configured to control the switching of the breaking member 15 from its closed position to its open position when the corresponding trigger member 40 moves from its armed position to its trigger position.
  • Each switch 50 is, for example, a button movable relative to the envelope and adapted to be actuated by the corresponding trigger member 40 when it reaches its trigger position.
  • the resetting member 55 is configured to move the or each trigger member 40 from its trigger position to its armed position when the operator moves the grip member 45 from its first position to its second position.
  • the resetting member 55 is unique.
  • the reset member 55 is configured to jointly move the trigger members 40 of the trip units 20 from their triggering positions to their respective armed positions.
  • the resetting member 55 is configured to simultaneously move all the release members 40 to their respective armed positions when the operator moves the gripper 45 from its first position to its second position.
  • the resetting element 55 belongs to the control mechanism 25.
  • the resetting element 55 is not removable from the casing independently of the other elements of the control mechanism 25.
  • the resetting member 55 is not removable from the housing.
  • the resetting member 55 is rotatable relative to the housing about a second axis A2.
  • the second axis A2 is parallel to the first axis A1.
  • the resetting member 55 is rotatable between its third position, shown in FIG. figure 2 , and his fourth position represented on the figure 3 .
  • the resetting member 55 When the reset member 55 is in the third position, the resetting member 55 is not in contact with the trigger member 40 of any trigger 20. In addition, when the resetting member 55 is in the third position and that the gripping member 45 is in its first position, the resetting member 55 and the gripping member 45 are not in contact with each other.
  • the resetting member 55 When the resetting member 55 is in the fourth position, the resetting member 55 bears against all the trigger members 40, which are each in their armed position.
  • the resetting member 55 comprises at least one first branch 95 and at least one second branch 100.
  • the resetting member 55 comprises two first branches 95, two second branches 100 and a rod 105.
  • the resetting member 55 is configured to transmit a movement of the gripping member 45 from its first position to its second position to the or at least one trigger member 40.
  • the resetting member 55 is configured to exercising, in response to a bearing force FA exerted by the gripping member 45 during its displacement, a displacement force FD on the or at least one of the trigger members 40.
  • Each displacement force FD tends to move the trigger member 40 corresponding to its armed position.
  • the resetting member 55 is in one piece.
  • Each first branch 95 has a first end E1 and a second end E2.
  • Each first branch 95 extends in a first direction D1.
  • the first direction D1 is perpendicular to the second axis A2.
  • Each first end E1 is provided to bear against the arm 75 or one of the arms 75 of the gripping member 45 when an operator moves the gripping member 45 to its second position.
  • each first end E1 is provided to bear against the bearing face 90 of a corresponding arm 75.
  • Each first end E1 has a fulcrum.
  • the fulcrum is the point of the first end E1 on which the support force FA is exerted by the arm 75.
  • each first end E1 comprises a roller 110.
  • Each roller 110 is configured to roll or slide against one or one of the arms 75 of the handle 60.
  • each roller 110 is provided for rolling or sliding against the bearing face 90 of a corresponding arm 75.
  • the fulcrum is a point of the roller 110.
  • rollers 110 are interposed between the two first branches 95.
  • the resetting member 55 does not comprise rollers 110.
  • the second end E2 surrounds the second axis A2 in a plane perpendicular to the second axis A2.
  • the second end E2 delimits a hole 115 for receiving a second shaft.
  • Each hole 115 is, for example, cylindrical with a circular base around the second axis A2.
  • Each second branch 100 is configured to bear against the trigger member 40 of a corresponding trigger 20.
  • Each second branch 100 extends in a second direction D2.
  • the second direction D2 is perpendicular to the second axis A2.
  • the second direction D2 is distinct from the first direction D1.
  • the second direction D2 forms an angle equal to 98 ° with the first direction D1, to 15 °.
  • each second direction D2 defines, with the first direction D1 of the first branch 95 with which its third end E3 is made of material, a plane perpendicular to the second axis A2.
  • Each second branch 100 has a first portion P1 and a second portion P2.
  • the second portion P1 has a third end E3.
  • the first portion P1 is delimited in the second direction D2 by the third end E3 and the second portion P2.
  • the third end E3 is integral with the second end E2.
  • the first portion P1 connects the second portion P2 to the second end E2 of the first branch 95.
  • the second portion P2 has a fourth end E4 and a cylindrical face 120.
  • the second portion P2 is delimited, in the second direction D2, by the fourth end E4 and the first portion P1.
  • the fourth end E4 is able to bear against the trigger member 40 of a corresponding trigger 20.
  • each second branch 100 is cylindrical with a circular base around a third axis A3.
  • Each cylindrical face 120 is designed to bear against the end face 42 of a corresponding trigger member 40 and to exert the displacement force FD on the end face 42.
  • a radius R is defined for each cylindrical face 120.
  • the radius R is the radius of the cylindrical face 120 around the third axis A3.
  • the two radii R of the two cylindrical faces 120 of the same resetting member 55 are equal. According to one variant, the two rays R are different from each other.
  • Each third axis A3 is parallel to the second axis A2.
  • a second distance d2, measured along the first direction D1, is defined between the point of contact of a first branch 95 and the second axis A2.
  • a third distance d3 is defined between the point of application, on the cylindrical face 120 of the corresponding second branch 100 and the second axis A2.
  • the resetting element 55 is configured so that the support force FA corresponding to the resetting force Fr of the first trigger 20A is equal to the support force FA corresponding to the resetting force Fr of the second trigger 20B.
  • support force FA corresponding to the resetting force Fr a value of the support force FA for which the displacement force Fr exerted by the resetting member 55 on the trigger member 40 is equal to the resetting force of the trigger 20 considered.
  • the second distances d2 of the first two branches 95 are equal to each other.
  • the third distances d3 of the two second branches 100 are such that the product of the third distance d3 of a second branch 100 and of the support force FA corresponding to the resetting force Fr of the corresponding trigger 20 is identical for the two second branches 100.
  • the resetting member 55 is then configured so that the reset force Fr of the first trigger 20A and the resetting force Fr of the second trigger 20B have the same moment with respect to the second axis A2.
  • an offset D between the two third axes A3 is strictly greater than 0.
  • the offset D is greater than or equal to 1 millimeter (mm).
  • the shift D is visible on the figure 6 .
  • the two third distances d3 are different from each other.
  • the two third distances are equal to each other, but the two second distances d2 are different from each other.
  • the rod 105 also called a flange, connects the first two ends E1 of the two first branches 95 of the same resetting member 55.
  • the rod 105 is provided to secure the first two ends E1.
  • the rod 105 secures two pairs of branches, each pair comprising a first leg 95 and a second leg 100 integral with each other.
  • the rod 105 extends in a third direction D3.
  • the third direction D3 is parallel to the second axis A2.
  • the cut-off member 15 is in its closed position and an electric current passes through the cut-off member 15 between the input connection pad 30 and the output pad pad 35.
  • the gripping member 45 is in its first position, visible on the figure 2 .
  • the trigger member 40 of each trigger 20 is in its armed position, and the resetting member 55 is in its third position.
  • an electrical fault is detected by at least one trigger 20.
  • the trigger or triggers 20 having detected the electrical fault then trigger the switching of the cutoff member 15, that is to say that the trigger member 40 of each trigger 20 having detected an electrical fault passes from its armed position to its trigger position. In doing so, the trigger member 40 actuates the corresponding switch 50, which causes the movement, by the control mechanism 25, of the cut-off member 15 from its closed position to its open position. The electric current is then cut by the breaking device 15.
  • the gripping member 45 moves from its first position to an intermediate position between its first and second positions. Alternatively, at the end of the detection step, the gripping member 45 is in its first position.
  • an operator actuates the gripping member 45 to allow the flow of current again.
  • the operator has solved the electrical fault and now wants to restore power to an installation.
  • the operator manually rotates the gripping member 45 about the first axis A1 to its second position.
  • the fifth position is an intermediate position between the first and the second position.
  • the gripping member 45 When the gripping member 45 is in the fifth position and the resetting member 55 is in the third position, the gripping member 45 bears against the resetting member 55. More precisely, the rollers 110 are then each in contact with the second facet F2 of the bearing face 90 of a corresponding arm 75.
  • the displacement of the gripping member 45 from its fifth position to its second position then causes the resetting member 55 to pivot over the second axis A2 from the third position to the fourth position.
  • rollers 110 then roll successively against the second facet F2 and then against the first facet F1.
  • a bearing force FA is then exerted on each first end E1 by the arm 75 against which this first end E1 bears.
  • the support force FA tends to rotate the resetting member 55 from its third position to its fourth position.
  • the movement of the resetting member 55 towards its fourth position brings the fourth end E4 of at least one second branch 100 bearing against the corresponding trigger member 40. More precisely, the cylindrical face 120 of the second branch 100 bears against the end face 42 of the release member 40.
  • the resetting member 55 pivoting to its fourth position, exerts a displacement force FD on the or each trigger member 40 against which it is supported.
  • the use of a single reset member 55 integrated in the control mechanism 25 makes it possible to simplify the production of the cut-off device 10.
  • the cut-off device 10 is more reliable than the cut-off devices of the state of the cut-off device.
  • the resetting member 55 is easy to manufacture and reliable operation by its great simplicity. In particular, the resetting member 55 reliably ensures the resetting of the different trip units 20. In fact, as few parts are involved during the reset, the operation of the resetting member 55 is insensitive to mechanical play. .
  • the resetting element 55 requires the same support force FA to allow the reset of each trigger 20.
  • the forces exerted by the resetting device 55 on the different arms 75 of the handle 60 are identical, which reduces the risk of twisting of the handle 60.
  • the cutoff device 10 is more reliable.
  • the resetting member 55 does not assume that the trigger members 40 have identical strokes.
  • the geometry of the bearing face 90 minimizes the forces exerted on the handle 60 by the resetting member 55 while ensuring that the bearing force FA always exerts a sufficient torque on the resetting member 55
  • the angle between the direction in which the support force FA is exerted and a straight line connecting the fulcrum to the second axis A2 is important and the torque is so high.
  • the torque experienced by the handle 60 is low.
  • the orientation of the first facet F1 allows a large range of movement of the gripping member 45.
  • the resetting member 55 comprises two pairs of branches, each pair of branches comprising a first branch 95 and a second branch 100.
  • each pair of branches comprising a first branch 95 and a second branch 100.
  • the number The number of pairs is likely to vary depending on the number of triggers used.
  • the number of first branches 95 is different from the number of second branches 100.
  • the resetting member 55 comprises a single first branch 95 bearing against the lever 60 and a plurality of second branches 100, a second branch 100 for each trigger 20.
  • the resetting element 55 comprises a single second branch 100.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
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Description

La présente invention concerne un dispositif de coupure.The present invention relates to a cut-off device.

De nombreux dispositifs de coupure comportent un organe de coupure et un mécanisme de commande prévu pour ouvrir ou fermer l'organe de coupure et donc empêcher ou permettre le passage d'un courant électrique à travers l'organe de coupure. En particulier, le mécanisme de commande permet d'assurer l'ouverture ou la fermeture de l'organe de coupure selon un cahier des charges précis, en particulier en termes de rapidité d'ouverture.Many cut-off devices comprise a cut-off member and a control mechanism designed to open or close the cut-off member and thus prevent or allow the passage of an electric current through the cut-off member. In particular, the control mechanism makes it possible to ensure the opening or closing of the cut-off device according to precise specifications, in particular in terms of speed of opening.

De tels dispositifs de coupure comportent fréquemment un ou plusieurs déclencheurs. Un déclencheur est un module permettant de commander l'ouverture en cas de détection d'un défaut électrique, par exemple si une tension est supérieure ou inférieure à des seuils prédéfinis, ou encore d'un court-circuit ou d'un courant de surcharge.Such cut-off devices frequently include one or more triggers. A trigger is a module for controlling the opening in the event of detection of an electrical fault, for example if a voltage is higher or lower than predefined thresholds, or a short circuit or an overload current .

En cas de détection d'un tel défaut, une partie mobile du déclencheur se déplace depuis une position initiale jusqu'à une position de déclenchement pour venir actionner le mécanisme de commande, et donc déclencher l'ouverture de l'organe de coupure. Afin de rétablir la circulation du courant électrique, de tels déclencheurs doivent donc être réarmés lorsqu'ils ont été déclenchés par la détection d'un défaut, c'est-à-dire que la partie mobile doit être ramenée dans sa position initiale pour permettre la fermeture de l'organe de coupure.In case of detection of such a defect, a moving part of the trigger moves from an initial position to a trigger position to come to actuate the control mechanism, and thus trigger the opening of the cutoff member. In order to restore the flow of electric current, such triggers must be reset when they were triggered by the detection of a fault, that is to say that the moving part must be returned to its initial position to allow the closure of the cut-off device.

Des déclencheurs sont souvent fournis sous la forme de modules optionnels, ce qui permet l'adaptation du dispositif de coupure à de nombreuses installations différentes, chaque type de déclencheur étant prévu pour déclencher la coupure en réponse à des défauts spécifiques. Ainsi, un même dispositif de coupure comporte fréquemment plusieurs déclencheurs de types différents.Triggers are often provided in the form of optional modules, which allows the switching device to be adapted to many different installations, each type of trigger being provided to trigger the shutdown in response to specific faults. Thus, the same cut-off device frequently includes several triggers of different types.

Cependant, lorsque plusieurs déclencheurs sont présents il est nécessaire de s'assurer que tous les déclencheurs sont ramenés dans leur position initiale via des actions aussi simples que possible pour l'opérateur. Cela est en général assuré par des organes de réarmement portés par les déclencheurs. Si un seul des organes de réarmement est défaillant, la fermeture de l'organe de coupure est alors rendue impossible. En outre, le réarmement suppose un positionnement précis de chaque déclencheur.However, when multiple triggers are present it is necessary to ensure that all triggers are returned to their original position via actions as simple as possible for the operator. This is usually provided by reset devices carried by the triggers. If only one of the reset members fails, the closure of the cutoff member is then made impossible. In addition, the reset assumes accurate positioning of each trigger.

Le document US 2002/0130743 A1 décrit un disjoncteur selon le préambule de la revendication 1 et comprenant un déclencheur.The document US 2002/0130743 A1 discloses a circuit breaker according to the preamble of claim 1 and comprising a trigger.

En outre, différents types de déclencheurs présentent souvent des caractéristiques mécaniques différentes. En particulier, la force nécessaire pour les réarmer est susceptible de varier d'un type de déclencheur à un autre. Ainsi, si l'opérateur actionne une manette pour fermer l'organe de coupure, des forces différentes sont exercées par les différents déclencheurs sur la manette. Au fil du temps, il en résulte une usure et une défaillance prématurées du mécanisme de réarmement ou de la manette, par exemple via un flambage ou une torsion de celle-ci. Cela est particulièrement important pour des disjoncteurs qui doivent assurer un grand nombre de cycles d'ouverture/fermeture sans défaillance.In addition, different types of triggers often have different mechanical characteristics. In particular, the force required to reset them is likely to vary from one type of trigger to another. Thus, if the operator actuates a handle to close the cutoff member, different forces are exerted by the different triggers on the joystick. Over time, this results in premature wear and failure of the reset mechanism or the handle, for example by buckling or twisting thereof. This is particularly important for circuit breakers that must provide a large number of open / close cycles without failure.

L'invention a pour but de proposer un dispositif de coupure qui soit plus fiable que les dispositifs de coupure de l'état de la technique.The object of the invention is to propose a cut-off device which is more reliable than the cutting devices of the state of the art.

A cet effet, il est proposé un dispositif de coupure selon la revendication 1For this purpose, it is proposed a cut-off device according to claim 1

Suivant d'autres aspects avantageux mais non obligatoires de l'invention, le dispositif de coupure est selon l'une quelconque des revendications 2 à 10.According to other advantageous but non-obligatory aspects of the invention, the cut-off device is according to any one of claims 2 to 10.

Les caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une vue en perspective d'un exemple de dispositif de coupure selon l'invention comprenant un mécanisme de commande, un organe de préhension et un organe de réarmement, le mécanisme de commande étant dans une position ouverte,
  • la figure 2 est une vue en perspective du dispositif de coupure de la figure 1, le mécanisme de commande étant dans une position fermée,
  • la figure 3 est une vue en perspective selon l'axe III-III du dispositif de coupure de la figure 1,
  • la figure 4 est une vue en perspective selon l'axe III-III de l'organe de préhension de la figure 1,
  • la figure 5 est une vue en perspective de l'organe de réarmement de la figure 1, et
  • la figure 6 est une vue en perspective selon l'axe III-III de l'organe de réarmement de la figure 1.
The features and advantages of the invention will become apparent on reading the description which follows, given solely by way of nonlimiting example and with reference to the appended drawings, in which:
  • the figure 1 is a perspective view of an exemplary cut-off device according to the invention comprising a control mechanism, a gripping member and a resetting member, the control mechanism being in an open position,
  • the figure 2 is a perspective view of the cutoff device of the figure 1 the control mechanism being in a closed position,
  • the figure 3 is a perspective view along the axis III-III of the cut-off device of the figure 1 ,
  • the figure 4 is a perspective view along the axis III-III of the gripping member of the figure 1 ,
  • the figure 5 is a perspective view of the rearming organ of the figure 1 , and
  • the figure 6 is a perspective view along the axis III-III of the rearming member of the figure 1 .

Un axe III-III a été représenté sur toutes les figures afin de permettre de mieux comprendre les orientations respectives des figures, et en particulier les figures 3, 4 et 6.An axis III-III has been shown in all the figures in order to better understand the respective orientations of the figures, and in particular the figures 3 , 4 and 6 .

Un dispositif de coupure 10 a été représenté sur la figure 1.A cutoff device 10 has been shown on the figure 1 .

Le dispositif de coupure 10 est un disjoncteur. Par exemple, le dispositif de coupure 10 est un disjoncteur triphasé.The cut-off device 10 is a circuit breaker. For example, the cut-off device 10 is a three-phase circuit breaker.

En variante, le dispositif de coupure 10 est un interrupteur tel qu'un interrupteur tripolaire ou un interrupteur tétrapolaire.Alternatively, the cut-off device 10 is a switch such as a three-pole switch or a four-pole switch.

Le dispositif de coupure 10 comporte une enveloppe, au moins un organe de coupure 15, au moins un déclencheur 20 et un mécanisme de commande 25.The breaking device 10 comprises an envelope, at least one breaking member 15, at least one trigger 20 and a control mechanism 25.

En variante, le dispositif de coupure 10 comporte plusieurs organes de coupure 15. En particulier, lorsque le dispositif de coupure 10 est disjoncteur triphasé, le dispositif de coupure 10 comporte trois organes de coupure 15, un pour chaque phase.In a variant, the cut-off device 10 has several breaking members 15. In particular, when the cut-off device 10 is a three-phase breaker, the cut-off device 10 comprises three cut-off devices 15, one for each phase.

En variante ou en complément, le dispositif de coupure 10 comporte une pluralité de déclencheurs 20. Selon l'exemple de la figure 1, le dispositif de coupure 10 comporte deux déclencheurs 20.Alternatively or in addition, the cut-off device 10 comprises a plurality of triggers 20. According to the example of the figure 1 , the cut-off device 10 comprises two triggers 20.

Chaque organe de coupure 15 comporte une plage de connexion d'entrée 30 et une plage de connexion de sortie 35.Each cutoff member 15 has an input connection pad 30 and an output pad pad 35.

L'organe de coupure 15 est propre à commuter entre une position fermée et une position ouverte.The cutoff member 15 is adapted to switch between a closed position and an open position.

Lorsque l'organe de coupure 15 est dans la position fermée, l'organe de coupure 15 autorise le passage d'un courant électrique entre la plage de connexion d'entrée 30 et la plage de connexion de sortie 35.When the cut-off member 15 is in the closed position, the cut-off member 15 allows the passage of an electric current between the input connection pad 30 and the output pad pad 35.

Lorsque l'organe de coupure 15 est dans la position ouverte, l'organe de coupure 15 empêche le passage d'un courant électrique entre la plage de connexion d'entrée 30 et la plage de connexion de sortie 35.When the cut-off member 15 is in the open position, the cut-off member 15 prevents the passage of an electric current between the input connection pad 30 and the output pad pad 35.

Chaque organe de coupure 15 est configuré pour être déplacé entre la position ouverte et la position fermée par le mécanisme de commande 25.Each cutoff member 15 is configured to be moved between the open position and the closed position by the control mechanism 25.

L'enveloppe est configurée pour isoler l'organe de coupure 15, le ou les déclencheurs 20 et le mécanisme de commande 25 de l'extérieur du boîtier.The envelope is configured to isolate the cutoff member 15, the trigger (s) 20 and the control mechanism 25 from the outside of the housing.

L'enveloppe délimite une chambre propre à accueillir le ou les organes de coupure 15, le ou les déclencheurs 20, et le mécanisme de commande 25. En particulier, l'enveloppe délimite une pluralité d'emplacements propres chacun à accueillir un déclencheur 20. Par exemple, l'enveloppe délimite deux emplacements.The envelope delimits a chamber adapted to receive the cut-off member (s) 15, the trigger (s) 20, and the control mechanism 25. In particular, the envelope delimits a plurality of clean locations each to receive a trigger 20. For example, the envelope delimits two locations.

Selon un mode de réalisation, l'enveloppe est constituée par la réunion d'un ensemble de parois portées par des pièces distinctes. Par exemple, le dispositif de coupure 10 comprend un couvercle, au moins deux cloisons et au moins une entretoise séparant deux organes de coupure 15 l'un de l'autre et comprenant, en outre, une paroi, et l'enveloppe est formée par la réunion au moins de la paroi, des deux cloisons et du couvercle.According to one embodiment, the envelope is constituted by the meeting of a set of walls carried by separate parts. For example, the cut-off device 10 comprises a cover, at least two partitions and at least one spacer separating two cut-off members 15 from each other and further comprising a wall, and the envelope is formed by the meeting at least of the wall, the two partitions and the lid.

Selon une variante, l'enveloppe comprend un boîtier monobloc et un couvercle.According to a variant, the envelope comprises a monobloc housing and a cover.

Selon l'exemple de la figure 1, le dispositif de coupure 10 comporte un premier déclencheur et un deuxième déclencheur, chaque déclencheur 20 étant reçu dans un emplacement correspondant. Le premier déclencheur est identifié sur la figure 1 par une référence 20A et le deuxième déclencheur par une référence 20B.According to the example of the figure 1 , the breaking device 10 comprises a first trigger and a second trigger, each trigger 20 being received in a corresponding location. The first trigger is identified on the figure 1 by a reference 20A and the second trigger by a reference 20B.

Chaque déclencheur 20 est configuré pour commander le déplacement de l'organe de coupure 15 depuis sa position fermée vers sa position ouverte. En particulier, chaque déclencheur 20 comporte un organe de déclenchement 40. Chaque déclencheur 20 est configuré pour déplacer l'organe de déclenchement 40 correspondant entre une position armée et une position de déclenchement.Each trigger 20 is configured to control the movement of the cutoff member 15 from its closed position to its open position. In particular, each trigger 20 comprises a trigger member 40. Each trigger 20 is configured to move the corresponding trigger member 40 between an armed position and a trigger position.

Chaque déclencheur 20 est amovible par rapport à l'enveloppe. En particulier, chaque déclencheur 20 est propre à être extrait de l'enveloppe indépendamment du mécanisme de commande 25.Each trigger 20 is removable relative to the envelope. In particular, each trigger 20 is able to be extracted from the casing independently of the control mechanism 25.

En particulier, chaque déclencheur 20 est propre à déplacer l'organe de déclenchement 40 correspondant depuis sa position armée jusqu'à sa position de déclenchement en réponse à la détection d'un défaut électrique. Par exemple, chaque déclencheur 20 est propre à recevoir d'un détecteur un signal de détection du défaut électrique.In particular, each trigger 20 is able to move the trigger member 40 corresponding from its armed position to its trigger position in response to the detection of an electrical fault. For example, each trigger 20 is adapted to receive from a detector an electrical fault detection signal.

Le défaut électrique est, par exemple, un courant de court-circuit, un courant de surcharge, ou encore un défaut d'isolement.The electrical fault is, for example, a short-circuit current, an overload current, or an insulation fault.

En variante, un déclencheur 20 est un déclencheur à manque de tension, configuré pour déplacer l'organe de déclenchement 40 vers sa position de déclenchement si une tension du courant électrique est inférieure à un seul seuil prédéterminé.Alternatively, a trigger 20 is a voltage-free trigger, configured to move the trip member 40 to its trip position if a voltage of the electric current is less than a single predetermined threshold.

Selon une autre variante, au moins un déclencheur 20 est un déclencheur à émission de courant, configuré pour déplacer l'organe de déclenchement 40 vers sa position de déclenchement si une tension du courant électrique est supérieure à un seuil prédéterminé.According to another variant, at least one trigger 20 is a current-release trigger, configured to move the trigger member 40 to its tripping position if a voltage of the electric current is greater than a predetermined threshold.

L'organe de déclenchement 40 est mobile par rapport au mécanisme de commande 25 entre sa position armée et sa position de déclenchement, et vice versa.The trigger member 40 is movable relative to the control mechanism 25 between its armed position and its trigger position, and vice versa.

L'organe de déclenchement 40 est configuré pour commander le déplacement de l'organe de coupure 15 depuis sa position fermée vers sa position ouverte lorsque l'organe de déclenchement 40 passe de sa position armée à sa position de déclenchement.The trigger member 40 is configured to control the movement of the cutoff member 15 from its closed position to its open position when the trigger member 40 moves from its armed position to its trigger position.

L'organe de déclenchement 40 est, par exemple, en forme de cylindre s'étendant selon une direction principale DP. L'organe de déclenchement 40 présente alors une face terminale 42 perpendiculaire à la direction principale DP. La face terminale 42 délimite l'organe de déclenchement 42 selon la direction principale DP.The trigger member 40 is, for example, in the form of a cylinder extending along a main direction DP. The trigger member 40 then has an end face 42 perpendicular to the main direction DP. The end face 42 defines the trigger member 42 along the main direction DP.

L'organe de déclenchement 40 est, par exemple, mobile en translation selon sa direction principale DP entre sa position armée et sa position de déclenchement.The trigger member 40 is, for example, movable in translation along its main direction DP between its armed position and its trigger position.

En variante, l'organe de déclenchement 40 est mobile en rotation entre sa position armée et sa position de déclenchement.Alternatively, the trigger member 40 is rotatable between its armed position and its trigger position.

Lorsque l'organe de déclenchement 40 est dans sa position armée, l'organe de déclenchement 40 est au moins en partie accueilli dans une enveloppe du déclencheur 20. Lorsque l'organe de déclenchement 40 est dans sa position armée, le déclencheur 20 est propre à commander la commutation de l'organe de coupure 15. Par exemple, lorsque l'organe de déclenchement 40 est dans sa position armée, un ressort est comprimé dans le déclencheur 20. Le ressort est propre, lorsqu'il est libéré, à déplacer l'organe de déclenchement 40 depuis sa position armée jusqu'à sa position de déclenchement.When the trigger member 40 is in its armed position, the triggering member 40 is at least partially accommodated in a casing of the trigger 20. When the trigger member 40 is in its armed position, the trigger 20 is clean. to control the switching of the cutoff member 15. For example, when the trigger member 40 is in its armed position, a spring is compressed in the trigger 20. The spring is clean, when released, to move the trigger member 40 from its armed position to its trigger position.

Lorsque l'organe de déclenchement 40 est dans sa position de déclenchement, l'organe de déclenchement 40 est au moins en partie extrait de l'enveloppe du déclencheur 20.When the tripping member 40 is in its tripped position, the tripping member 40 is at least partially extracted from the envelope of the trigger 20.

De préférence, lorsque l'organe de déclenchement 40 passe de sa position armée à sa position de déclenchement, l'organe de déclenchement 40 se déplace depuis l'intérieur de l'enveloppe du déclencheur 20 vers l'extérieur de l'enveloppe du déclencheur 20.Preferably, when the trigger member 40 moves from its armed position to its tripped position, the trigger member 40 moves from within the trigger housing 20 to the outside of the trigger envelope. 20.

Une force de réarmement Fr est définie pour chaque déclencheur 20. La force de réarmement Fr est la valeur minimale de la force qui doit être appliquée sur l'organe de déclenchement 40 du déclencheur 20 considéré pour déplacer l'organe de déclenchement 40 depuis sa position de déclenchement jusqu'à sa position armée.A reset force Fr is defined for each trigger 20. The resetting force Fr is the minimum value of the force that must be applied to the trigger member 40 of the trigger 20 considered to move the trigger member 40 from its position. trigger to his armed position.

La force de réarmement Fr du premier déclencheur 20A est différente de la force de réarmement Fr du deuxième déclencheur 20B.The resetting force Fr of the first trigger 20A is different from the resetting force Fr of the second trigger 20B.

Une course de réarmement est, en outre, définie pour chaque déclencheur 20. La course de réarmement est la distance entre un point de l'organe de déclenchement 40 lorsque l'organe de déclenchement 40 est dans la position armée et le même point lorsque l'organe de déclenchement 40 est dans la position de déclenchement.A reset stroke is further defined for each trigger 20. The resetting stroke is the distance between a point of the trigger member 40 when the trigger member 40 is in the armed position and the same point when the trigger member 40 is in the trigger position.

Afin de permettre de mieux visualiser l'organe de coupure 15 et le mécanisme de commande 25, aucun déclencheur 20 n'est représenté sur la figure 2.In order to better visualize the cut-off member 15 and the control mechanism 25, no trigger 20 is shown on the figure 2 .

Le mécanisme de commande 25 est configuré pour déplacer l'organe de coupure 15 entre sa position ouverte et sa position fermée.The control mechanism 25 is configured to move the cutoff member 15 between its open position and its closed position.

Le mécanisme de commande 25 comporte un organe de préhension 45, au moins un interrupteur 50 et un unique organe de réarmement 55. De préférence, le mécanisme de commande 25 comporte un interrupteur 50 pour chaque emplacement de réception d'un déclencheur 20.The control mechanism 25 comprises a gripping member 45, at least one switch 50 and a single resetting member 55. Preferably, the control mechanism 25 comprises a switch 50 for each location of receiving a trigger 20.

L'organe de préhension 45 est mobile entre une première position et une deuxième position par rapport à l'organe de coupure 15.The gripping member 45 is movable between a first position and a second position with respect to the cut-off member 15.

L'organe de préhension 45 est déplaçable par un opérateur entre la première position et la deuxième position pour commander le déplacement de l'organe de coupure 15 entre sa position ouverte et sa position fermée.The gripping member 45 is movable by an operator between the first position and the second position to control the displacement of the cutoff member 15 between its open position and its closed position.

Lorsque l'organe de préhension 45 est dans la première position, l'organe de coupure 15 est dans sa position fermée.When the gripping member 45 is in the first position, the cutoff member 15 is in its closed position.

Lorsque l'organe de préhension 45 est dans la deuxième position, l'organe de coupure 15 est dans sa position ouverte.When the gripping member 45 is in the second position, the cutoff member 15 is in its open position.

Sur la figure 2, l'organe de préhension 45 est représenté dans sa première position.On the figure 2 , the gripping member 45 is shown in its first position.

Sur la figure 3, l'organe de préhension 45 est représenté dans sa deuxième position.On the figure 3 , the gripping member 45 is shown in its second position.

L'organe de préhension 45 est, en outre, propre à venir en appui contre l'organe de réarmement 55 pour déplacer l'organe de réarmement 55 entre une troisième position et une quatrième position.The gripping member 45 is further adapted to bear against the resetting member 55 to move the resetting member 55 between a third position and a fourth position.

L'organe de préhension 45 comporte une manette 60, également appelée maneton.The gripping member 45 comprises a handle 60, also called crankpin.

La manette 60 est mobile en rotation par rapport à l'enveloppe autour d'un premier axe A1.The handle 60 is rotatable relative to the casing around a first axis A1.

La manette 60 est configurée pour venir en appui contre l'organe de réarmement 55 lorsque l'organe de préhension 45 est déplacé depuis sa première position jusqu'à sa deuxième position.The handle 60 is configured to bear against the resetting member 55 when the gripping member 45 is moved from its first position to its second position.

La manette 60 comporte une poignée 65, au moins un palier 70 et au moins un bras 75. Selon l'exemple de la figure 2, la manette 60 comporte deux bras 75.The handle 60 comprises a handle 65, at least one bearing 70 and at least one arm 75. According to the example of the figure 2 , the handle 60 has two arms 75.

La poignée 65 est configurée pour permettre à un opérateur de déplacer manuellement l'organe de préhension 45 entre sa première position et sa deuxième position.The handle 65 is configured to allow an operator to manually move the gripper 45 between its first position and its second position.

Chaque palier 70 est configuré pour permettre un mouvement de rotation respectif entre la manette 60 et les autres éléments du mécanisme de commande 25. Ainsi, chaque palier 70 est propre à guider en rotation un bras 75 autour du premier axe A1.Each bearing 70 is configured to allow a respective rotational movement between the handle 60 and the other elements of the control mechanism 25. Thus, each bearing 70 is adapted to guide an arm 75 in rotation around the first axis A1.

Selon l'exemple de la figure 4, la manette 60 comprend un palier 70 pour chaque bras 75.According to the example of the figure 4 , the handle 60 comprises a bearing 70 for each arm 75.

Par exemple, chaque palier 70 est propre à coopérer avec un pion respectif s'étendant selon le premier axe A1 pour permettre une rotation de la manette 60 autour du premier axe A1. En variante, chaque palier 70 est propre à coopérer avec un unique premier arbre commun aux deux paliers 70.For example, each bearing 70 is adapted to cooperate with a respective pin extending along the first axis A1 to allow rotation of the controller 60 around of the first axis A1. As a variant, each bearing 70 is able to cooperate with a single first common shaft at the two bearings 70.

Le ou les bras 75 relie(nt) chacun la poignée 65 au(x) palier(s) 70.The arm (s) 75 (each) connects the handle 65 to the bearing (s) 70.

Selon l'exemple de la figure 2, les deux bras 75 sont venus de matière et réalisés à partir d'une unique pièce métallique.According to the example of the figure 2 , the two arms 75 are made of material and made from a single metal part.

Chaque bras 75 est perpendiculaire au premier axe A1.Each arm 75 is perpendicular to the first axis A1.

Par exemple, chaque bras 75 est en forme d'une plaque perpendiculaire au premier axe A1. Dans ce cas, chaque bras 75 présente deux faces principales 80 et une face latérale 85.For example, each arm 75 is in the form of a plate perpendicular to the first axis A1. In this case, each arm 75 has two main faces 80 and a lateral face 85.

Les deux faces principales 80 délimitent le bras correspondant selon le premier axe A1. Dans ce cas, chaque face principale 80 est perpendiculaire au premier axe A1.The two main faces 80 delimit the corresponding arm along the first axis A1. In this case, each main face 80 is perpendicular to the first axis A1.

La face latérale 85 relie entre elles les deux faces principales 80.The lateral face 85 interconnects the two main faces 80.

La face latérale 85 délimite le bras 75 correspondant dans un plan perpendiculaire au premier axe A1.The lateral face 85 delimits the corresponding arm 75 in a plane perpendicular to the first axis A1.

Une portion de la face latérale 85 forme une face d'appui 90.A portion of the side face 85 forms a bearing face 90.

La face d'appui 90 est configurée pour venir en appui contre l'organe de réarmement 55 lorsque l'organe de préhension 45 est déplacé vers sa deuxième position.The bearing face 90 is configured to bear against the resetting member 55 when the gripping member 45 is moved to its second position.

Selon l'exemple de la figure 4, la face d'appui 90 est concave.According to the example of the figure 4 the bearing face 90 is concave.

Une première distance d1 et un premier angle sont définis pour chaque point de la face d'appui 90.A first distance d1 and a first angle are defined for each point of the bearing face 90.

La première distance d1 est la distance entre le point considéré et le point du premier axe A1 le plus proche du point considéré.The first distance d1 is the distance between the point considered and the point of the first axis A1 closest to the point considered.

Le premier angle est l'angle entre la tangente en le point considéré à la face d'appui 90 et une droite reliant le point considéré au premier axe A1. Chaque tangente appartient à un plan perpendiculaire au premier axe A1.The first angle is the angle between the tangent at the point considered at the bearing face 90 and a straight line connecting the point considered to the first axis A1. Each tangent belongs to a plane perpendicular to the first axis A1.

Le premier angle augmente avec la première distance d1.The first angle increases with the first distance d1.

Par exemple, pour chaque ensemble de deux points de la face d'appui 90, un segment reliant les deux points considérés est formé de points appartenant chacun à la face d'appui 90 ou n'appartenant pas au bras 75.For example, for each set of two points of the bearing face 90, a segment connecting the two points considered is formed of points each belonging to the bearing face 90 or not belonging to the arm 75.

Par exemple, la face d'appui 90 comporte deux facettes F1 et F2, chaque facette F1, F2 étant plane et les deux facettes F1, F2 définissant, dans un plan perpendiculaire au premier axe A1, un deuxième angle dont l'ouverture est dirigée vers l'extérieur du bras 75. Le deuxième angle présente une valeur comprise, par exemple, entre 90 degrés (°) et 180 degrés.For example, the bearing face 90 comprises two facets F1 and F2, each facet F1, F2 being planar and the two facets F1, F2 defining, in a plane perpendicular to the first axis A1, a second angle whose opening is directed to the outside of the arm 75. The second angle has a value, for example, between 90 degrees (°) and 180 degrees.

Comme visible sur la figure 4, du fait de l'orientation des facettes F1 et F2, le premier angle augmente lorsque l'on passe de la première facette F1 à la deuxième facette F2, qui est plus éloignée du premier axe A1 que la première facette F1.As visible on the figure 4 due to the orientation of the facets F1 and F2, the first angle increases as we move from the first facet F1 to the second facet F2, which is farther from the first axis A1 than the first facet F1.

En d'autres termes, le deuxième angle est une fonction de la première distance d1 définie par deux fonctions affines, chaque fonction affine étant définie sur une plage de premières distances d1 respective, les deux plages étant successives, et le coefficient directeur de la fonction affine correspondant à la plage la plus éloignée du premier axe A1 est strictement supérieur au coefficient directeur de l'autre fonction affine.In other words, the second angle is a function of the first distance d1 defined by two affine functions, each affine function being defined over a range of first distances d1 respectively, the two ranges being successive, and the direction coefficient of the function affine corresponding to the range farthest from the first axis A1 is strictly greater than the director of the other affine function.

En variante, le deuxième angle est une fonction de la première distance d1 dont la dérivée seconde est strictement positive.In a variant, the second angle is a function of the first distance d1 whose second derivative is strictly positive.

Chaque interrupteur 50 est configuré pour commander la commutation de l'organe de coupure 15 depuis sa position fermée jusqu'à sa position ouverte lorsque l'organe de déclenchement 40 correspondant passe de sa position armée à sa position de déclenchement.Each switch 50 is configured to control the switching of the breaking member 15 from its closed position to its open position when the corresponding trigger member 40 moves from its armed position to its trigger position.

Chaque interrupteur 50 est, par exemple, un bouton mobile par rapport à l'enveloppe et prévu pour être actionné par l'organe de déclenchement 40 correspondant lorsque celui-ci atteint sa position de déclenchement.Each switch 50 is, for example, a button movable relative to the envelope and adapted to be actuated by the corresponding trigger member 40 when it reaches its trigger position.

L'organe de réarmement 55 est configuré pour déplacer le ou chaque organe de déclenchement 40 depuis sa position de déclenchement jusqu'à sa position armée lorsque l'opérateur déplace l'organe de préhension 45 depuis sa première position jusqu'à sa deuxième position.The resetting member 55 is configured to move the or each trigger member 40 from its trigger position to its armed position when the operator moves the grip member 45 from its first position to its second position.

L'organe de réarmement 55 est unique. En particulier, si le dispositif de coupure 10 comporte plusieurs déclencheurs 20, l'organe de réarmement 55 est configuré pour déplacer conjointement les organes de déclenchement 40 des déclencheurs 20 depuis leurs positions de déclenchements jusqu'à leurs positions armées respectives.The resetting member 55 is unique. In particular, if the cut-off device 10 comprises a plurality of triggers 20, the reset member 55 is configured to jointly move the trigger members 40 of the trip units 20 from their triggering positions to their respective armed positions.

De préférence, l'organe de réarmement 55 est configuré pour déplacer simultanément tous les organes de déclenchement 40 jusqu'à leur position armée respective lorsque l'opérateur déplace l'organe de préhension 45 depuis sa première position jusqu'à sa deuxième position.Preferably, the resetting member 55 is configured to simultaneously move all the release members 40 to their respective armed positions when the operator moves the gripper 45 from its first position to its second position.

L'organe de réarmement 55 appartient au mécanisme de commande 25. En particulier, l'organe de réarmement 55 n'est pas extractible de l'enveloppe indépendamment des autres éléments du mécanisme de commande 25.The resetting element 55 belongs to the control mechanism 25. In particular, the resetting element 55 is not removable from the casing independently of the other elements of the control mechanism 25.

Par exemple, l'organe de réarmement 55 n'est pas extractible du boîtier.For example, the resetting member 55 is not removable from the housing.

L'organe de réarmement 55 est mobile en rotation par rapport au boîtier autour d'un deuxième axe A2. Le deuxième axe A2 est parallèle au premier axe A1.The resetting member 55 is rotatable relative to the housing about a second axis A2. The second axis A2 is parallel to the first axis A1.

En particulier, l'organe de réarmement 55 est mobile en rotation entre sa troisième position, représentée sur la figure 2, et sa quatrième position représentée sur la figure 3.In particular, the resetting member 55 is rotatable between its third position, shown in FIG. figure 2 , and his fourth position represented on the figure 3 .

Lorsque l'organe de réarmement 55 est dans la troisième position, l'organe de réarmement 55 n'est en contact avec l'organe de déclenchement 40 d'aucun déclencheur 20. En outre, lorsque l'organe de réarmement 55 est dans la troisième position et que l'organe de préhension 45 est dans sa première position, l'organe de réarmement 55 et l'organe de préhension 45 ne sont pas en contact l'un avec l'autre.When the reset member 55 is in the third position, the resetting member 55 is not in contact with the trigger member 40 of any trigger 20. In addition, when the resetting member 55 is in the third position and that the gripping member 45 is in its first position, the resetting member 55 and the gripping member 45 are not in contact with each other.

Lorsque l'organe de réarmement 55 est dans la quatrième position, l'organe de réarmement 55 est en appui contre tous les organes de déclenchements 40, qui sont chacun dans leur position armée.When the resetting member 55 is in the fourth position, the resetting member 55 bears against all the trigger members 40, which are each in their armed position.

L'organe de réarmement 55 comporte au moins une première branche 95 et au moins une deuxième branche 100.The resetting member 55 comprises at least one first branch 95 and at least one second branch 100.

Selon l'exemple de la figure 5, l'organe de réarmement 55 comporte deux premières branches 95, deux deuxièmes branches 100 et une tige 105.According to the example of the figure 5 , the resetting member 55 comprises two first branches 95, two second branches 100 and a rod 105.

L'organe de réarmement 55 est configuré pour transmettre un mouvement de l'organe de préhension 45 depuis sa première position vers sa deuxième position à le ou au moins un organe de déclenchement 40. Par exemple, l'organe de réarmement 55 est configuré pour exercer, en réponse à une force d'appui FA exercée par l'organe de préhension 45 au cours de son déplacement, une force de déplacement FD sur le ou au moins une des organes de déclenchement 40. Chaque force de déplacement FD tend à déplacer l'organe de déclenchement 40 correspondant vers sa position armée.The resetting member 55 is configured to transmit a movement of the gripping member 45 from its first position to its second position to the or at least one trigger member 40. For example, the resetting member 55 is configured to exercising, in response to a bearing force FA exerted by the gripping member 45 during its displacement, a displacement force FD on the or at least one of the trigger members 40. Each displacement force FD tends to move the trigger member 40 corresponding to its armed position.

L'organe de réarmement 55 est monobloc.The resetting member 55 is in one piece.

Chaque première branche 95 comporte une première extrémité E1 et une deuxième extrémité E2.Each first branch 95 has a first end E1 and a second end E2.

Chaque première branche 95 s'étend selon une première direction D1. La première direction D1 est perpendiculaire au deuxième axe A2.Each first branch 95 extends in a first direction D1. The first direction D1 is perpendicular to the second axis A2.

Chaque première extrémité E1 est prévue pour venir en appui contre le bras 75 ou un des bras 75 de l'organe de préhension 45 lorsqu'un opérateur déplace l'organe de préhension 45 vers sa deuxième position.Each first end E1 is provided to bear against the arm 75 or one of the arms 75 of the gripping member 45 when an operator moves the gripping member 45 to its second position.

En particulier, lorsque l'organe de réarmement 55 comporte deux premières branches 95 et la manette 60 comporte deux bras 75, chaque première extrémité E1 est prévue pour venir en appui contre la face d'appui 90 d'un bras 75 correspondant.In particular, when the resetting member 55 comprises two first legs 95 and the handle 60 comprises two arms 75, each first end E1 is provided to bear against the bearing face 90 of a corresponding arm 75.

Chaque première extrémité E1 présente un point d'appui. Le point d'appui est le point de la première extrémité E1 sur lequel la force d'appui FA est exercée par le bras 75.Each first end E1 has a fulcrum. The fulcrum is the point of the first end E1 on which the support force FA is exerted by the arm 75.

Selon l'exemple de la figure 5, chaque première extrémité E1 comporte un galet 110. Chaque galet 110 est configuré pour rouler ou glisser contre le ou un des bras 75 de la manette 60.According to the example of the figure 5 each first end E1 comprises a roller 110. Each roller 110 is configured to roll or slide against one or one of the arms 75 of the handle 60.

En particulier, chaque galet 110 est prévu pour rouler ou glisser contre la face d'appui 90 d'un bras 75 correspondant.In particular, each roller 110 is provided for rolling or sliding against the bearing face 90 of a corresponding arm 75.

Ainsi, le point d'appui est un point du galet 110.Thus, the fulcrum is a point of the roller 110.

Selon l'exemple de la figure 5, les galets 110 sont interposés entre les deux premières branches 95.According to the example of the figure 5 , the rollers 110 are interposed between the two first branches 95.

En variante, l'organe de réarmement 55 ne comporte pas de galets 110.In a variant, the resetting member 55 does not comprise rollers 110.

La deuxième extrémité E2 entoure le deuxième axe A2 dans un plan perpendiculaire au deuxième axe A2. Par exemple, la deuxième extrémité E2 délimite un trou 115 de réception d'un deuxième arbre. Chaque trou 115 est, par exemple, cylindrique à base circulaire autour du deuxième axe A2.The second end E2 surrounds the second axis A2 in a plane perpendicular to the second axis A2. For example, the second end E2 delimits a hole 115 for receiving a second shaft. Each hole 115 is, for example, cylindrical with a circular base around the second axis A2.

Chaque deuxième branche 100 est configurée pour venir en appui contre l'organe de déclenchement 40 d'un déclencheur 20 correspondant.Each second branch 100 is configured to bear against the trigger member 40 of a corresponding trigger 20.

Chaque deuxième branche 100 s'étend selon une deuxième direction D2. La deuxième direction D2 est perpendiculaire au deuxième axe A2.Each second branch 100 extends in a second direction D2. The second direction D2 is perpendicular to the second axis A2.

La deuxième direction D2 est distincte de la première direction D1. Par exemple, la deuxième direction D2 forme un angle égal à 98° avec la première direction D1, à 15° près.The second direction D2 is distinct from the first direction D1. For example, the second direction D2 forms an angle equal to 98 ° with the first direction D1, to 15 °.

De préférence, chaque deuxième direction D2 définit, avec la première direction D1 de la première branche 95 avec laquelle sa troisième extrémité E3 est venue de matière, un plan perpendiculaire au deuxième axe A2.Preferably, each second direction D2 defines, with the first direction D1 of the first branch 95 with which its third end E3 is made of material, a plane perpendicular to the second axis A2.

Chaque deuxième branche 100 comporte une première portion P1 et une deuxième portion P2.Each second branch 100 has a first portion P1 and a second portion P2.

La deuxième portion P1 présente une troisième extrémité E3. La première portion P1 est délimitée selon la deuxième direction D2 par la troisième extrémité E3 et par la deuxième portion P2.The second portion P1 has a third end E3. The first portion P1 is delimited in the second direction D2 by the third end E3 and the second portion P2.

La troisième extrémité E3 est venue de matière avec la deuxième extrémité E2. Ainsi, la première portion P1 relie la deuxième portion P2 à la deuxième extrémité E2 de la première branche 95.The third end E3 is integral with the second end E2. Thus, the first portion P1 connects the second portion P2 to the second end E2 of the first branch 95.

La deuxième portion P2 présente une quatrième extrémité E4 et une face cylindrique 120.The second portion P2 has a fourth end E4 and a cylindrical face 120.

La deuxième portion P2 est délimitée, selon la deuxième direction D2, par la quatrième extrémité E4 et par la première portion P1.The second portion P2 is delimited, in the second direction D2, by the fourth end E4 and the first portion P1.

La quatrième extrémité E4 est propre à venir en appui contre l'organe de déclenchement 40 d'un déclencheur 20 correspondant.The fourth end E4 is able to bear against the trigger member 40 of a corresponding trigger 20.

La face cylindrique 120 de chaque deuxième branche 100 est cylindrique à base circulaire autour d'un troisième axe A3.The cylindrical face 120 of each second branch 100 is cylindrical with a circular base around a third axis A3.

Chaque face cylindrique 120 est prévue pour venir en appui contre la face terminale 42 d'un organe de déclenchement 40 correspondant et pour exercer la force de déplacement FD sur la face terminale 42.Each cylindrical face 120 is designed to bear against the end face 42 of a corresponding trigger member 40 and to exert the displacement force FD on the end face 42.

Un rayon R est défini pour chaque face cylindrique 120. Le rayon R est le rayon de la face cylindrique 120 autour du troisième axe A3.A radius R is defined for each cylindrical face 120. The radius R is the radius of the cylindrical face 120 around the third axis A3.

Les deux rayons R des deux faces cylindriques 120 d'un même organe de réarmement 55 sont égaux. Selon une variante, les deux rayons R sont différents l'un de l'autre.The two radii R of the two cylindrical faces 120 of the same resetting member 55 are equal. According to one variant, the two rays R are different from each other.

Chaque troisième axe A3 est parallèle au deuxième axe A2.Each third axis A3 is parallel to the second axis A2.

Une deuxième distance d2, mesurée selon la première direction D1, est définie entre le point d'appui d'une première branche 95 et le deuxième axe A2. Une troisième distance d3 est définie entre le point d'application, sur la face cylindrique 120 de la deuxième branche 100 correspondante et le deuxième axe A2.A second distance d2, measured along the first direction D1, is defined between the point of contact of a first branch 95 and the second axis A2. A third distance d3 is defined between the point of application, on the cylindrical face 120 of the corresponding second branch 100 and the second axis A2.

L'organe de réarmement 55 est configuré pour que la force d'appui FA correspondant à la force de réarmement Fr du premier déclencheur 20A soit égale à la force d'appui FA correspondant à la force de réarmement Fr du deuxième déclencheur 20B.The resetting element 55 is configured so that the support force FA corresponding to the resetting force Fr of the first trigger 20A is equal to the support force FA corresponding to the resetting force Fr of the second trigger 20B.

Il est entendu par « force d'appui FA correspondant à la force de réarmement Fr » d'un déclencheur 20 une valeur de la force d'appui FA pour laquelle la force de déplacement Fr exercée par l'organe de réarmement 55 sur l'organe de déclenchement 40 est égale à la force de réarmement du déclencheur 20 considéré.It is understood by "support force FA corresponding to the resetting force Fr" of a trigger 20 a value of the support force FA for which the displacement force Fr exerted by the resetting member 55 on the trigger member 40 is equal to the resetting force of the trigger 20 considered.

Par exemple, les deuxièmes distances d2 des deux premières branches 95 sont égales l'une à l'autres. Dans ce cas, les troisièmes distances d3 des deux deuxièmes branches 100 sont telles que le produit de la troisième distance d3 d'une deuxième branche 100 et de la force d'appui FA correspondant à la force de réarmement Fr du déclencheur 20 correspondant est identique pour les deux deuxièmes branches 100.For example, the second distances d2 of the first two branches 95 are equal to each other. In this case, the third distances d3 of the two second branches 100 are such that the product of the third distance d3 of a second branch 100 and of the support force FA corresponding to the resetting force Fr of the corresponding trigger 20 is identical for the two second branches 100.

L'organe de réarmement 55 est alors configuré pour que la force de réarmement Fr du premier déclencheur 20A et la force de réarmement Fr du deuxième déclencheur 20B aient un même moment par rapport au deuxième axe A2.The resetting member 55 is then configured so that the reset force Fr of the first trigger 20A and the resetting force Fr of the second trigger 20B have the same moment with respect to the second axis A2.

Par exemple, les troisièmes axes A3 des deux deuxièmes branches 100 d'un même organe de réarmement 55 ne sont pas confondus. En d'autres termes, un décalage D entre les deux troisièmes axes A3 est strictement supérieur à 0. Par exemple, le décalage D est supérieur ou égal à 1 millimètre (mm).For example, the third axes A3 of the two second branches 100 of the same reset member 55 are not confused. In other words, an offset D between the two third axes A3 is strictly greater than 0. For example, the offset D is greater than or equal to 1 millimeter (mm).

Le décalage D est visible sur la figure 6. Ainsi, les deux troisièmes distances d3 sont différentes l'une de l'autre.The shift D is visible on the figure 6 . Thus, the two third distances d3 are different from each other.

En variante, les deux troisièmes distances sont égales l'une à l'autre, mais les deux deuxièmes distances d2 sont différentes l'une de l'autre.Alternatively, the two third distances are equal to each other, but the two second distances d2 are different from each other.

La tige 105, également appelée bride, relie les deux premières extrémités E1 des deux premières branches 95 d'un même organe de réarmement 55. La tige 105 est prévue pour solidariser les deux premières extrémités E1. Ainsi, la tige 105 solidarise deux paires de branches, chaque paire comprenant une première branche 95 et une deuxième branche 100 venues de matière l'une avec l'autre.The rod 105, also called a flange, connects the first two ends E1 of the two first branches 95 of the same resetting member 55. The rod 105 is provided to secure the first two ends E1. Thus, the rod 105 secures two pairs of branches, each pair comprising a first leg 95 and a second leg 100 integral with each other.

La tige 105 s'étend selon une troisième direction D3. La troisième direction D3 est parallèle au deuxième axe A2.The rod 105 extends in a third direction D3. The third direction D3 is parallel to the second axis A2.

Le fonctionnement du dispositif de coupure 10 va maintenant être décrit.The operation of the cutoff device 10 will now be described.

Dans une étape initiale, l'organe de coupure 15 est dans sa position fermée et un courant électrique traverse l'organe de coupure 15 entre la plage de connexion d'entrée 30 et la plage de connexion de sortie 35.In an initial step, the cut-off member 15 is in its closed position and an electric current passes through the cut-off member 15 between the input connection pad 30 and the output pad pad 35.

Au cours de l'étape initiale, l'organe de préhension 45 est dans sa première position, visible sur la figure 2. En outre, l'organe de déclenchement 40 de chaque déclencheur 20 est dans sa position armée, et l'organe de réarmement 55 est dans sa troisième position.During the initial step, the gripping member 45 is in its first position, visible on the figure 2 . In addition, the trigger member 40 of each trigger 20 is in its armed position, and the resetting member 55 is in its third position.

Au cours d'une étape de détection, un défaut électrique est détecté par au moins un déclencheur 20. Le ou les déclencheurs 20 ayant détecté le défaut électrique déclenchent alors la commutation de l'organe de coupure 15, c'est-à-dire que l'organe de déclenchement 40 de chaque déclencheur 20 ayant détecté un défaut électrique passe de sa position armée à sa position de déclenchement. Ce faisant, l'organe de déclenchement 40 vient actionner l'interrupteur 50 correspondant, qui entraîne le déplacement, par le mécanisme de commande 25, de l'organe de coupure 15 depuis sa position fermée jusqu'à sa position ouverte. Le courant électrique est alors coupé par l'organe de coupure 15.During a detection step, an electrical fault is detected by at least one trigger 20. The trigger or triggers 20 having detected the electrical fault then trigger the switching of the cutoff member 15, that is to say that the trigger member 40 of each trigger 20 having detected an electrical fault passes from its armed position to its trigger position. In doing so, the trigger member 40 actuates the corresponding switch 50, which causes the movement, by the control mechanism 25, of the cut-off member 15 from its closed position to its open position. The electric current is then cut by the breaking device 15.

Lors de l'étape de détection, l'organe de préhension 45 passe de sa première position à une position intermédiaire entre ses première et deuxième positions. En variante, à l'issue de l'étape de détection, l'organe de préhension 45 est dans sa première position.During the detection step, the gripping member 45 moves from its first position to an intermediate position between its first and second positions. Alternatively, at the end of the detection step, the gripping member 45 is in its first position.

Ensuite, lors d'une étape de réarmement, un opérateur actionne l'organe de préhension 45 pour permettre à nouveau le passage du courant. Par exemple, l'opérateur a solutionné le défaut électrique et souhaite maintenant rétablir l'alimentation électrique d'une installation.Then, during a reset step, an operator actuates the gripping member 45 to allow the flow of current again. For example, the operator has solved the electrical fault and now wants to restore power to an installation.

Pour ce faire, l'opérateur fait pivoter manuellement l'organe de préhension 45 autour du premier axe A1 jusqu'à sa deuxième position.To do this, the operator manually rotates the gripping member 45 about the first axis A1 to its second position.

Au cours du déplacement de l'organe de préhension 45 vers sa deuxième position, l'organe de préhension atteint une cinquième position. La cinquième position est une position intermédiaire entre la première et la deuxième position.During the movement of the gripping member 45 to its second position, the gripping member reaches a fifth position. The fifth position is an intermediate position between the first and the second position.

Lorsque l'organe de préhension 45 est dans la cinquième position et l'organe de réarmement 55 est dans la troisième position, l'organe de préhension 45 est en appui contre l'organe de réarmement 55. Plus précisément, les galets 110 sont alors chacun en contact avec la deuxième facette F2 de la face d'appui 90 d'un bras 75 correspondant.When the gripping member 45 is in the fifth position and the resetting member 55 is in the third position, the gripping member 45 bears against the resetting member 55. More precisely, the rollers 110 are then each in contact with the second facet F2 of the bearing face 90 of a corresponding arm 75.

Le déplacement de l'organe de préhension 45 depuis sa cinquième position jusqu'à sa deuxième position entraîne alors le basculement de l'organe de réarmement 55, autour du deuxième axe A2, depuis la troisième position jusqu'à la quatrième position.The displacement of the gripping member 45 from its fifth position to its second position then causes the resetting member 55 to pivot over the second axis A2 from the third position to the fourth position.

Les galets 110 roulent alors successivement contre la deuxième facette F2 puis contre la première facette F1.The rollers 110 then roll successively against the second facet F2 and then against the first facet F1.

Une force d'appui FA est alors exercée sur chaque première extrémité E1 par le bras 75 contre lequel cette première extrémité E1 est en appui. La force d'appui FA tend à faire pivoter l'organe de réarmement 55 depuis sa troisième position jusqu'à sa quatrième position.A bearing force FA is then exerted on each first end E1 by the arm 75 against which this first end E1 bears. The support force FA tends to rotate the resetting member 55 from its third position to its fourth position.

Le déplacement de l'organe de réarmement 55 vers sa quatrième position amène la quatrième extrémité E4 d'au moins une deuxième branche 100 en appui contre l'organe de déclenchement 40 correspondant. Plus précisément, la face cylindrique 120 de la deuxième branche 100 vient en appui contre la face terminale 42 de l'organe de déclenchement 40.The movement of the resetting member 55 towards its fourth position brings the fourth end E4 of at least one second branch 100 bearing against the corresponding trigger member 40. More precisely, the cylindrical face 120 of the second branch 100 bears against the end face 42 of the release member 40.

Ainsi, l'organe de réarmement 55, pivotant jusqu'à sa quatrième position, exerce une force de déplacement FD sur le ou chaque organe de déclenchement 40 contre lequel il est en appui.Thus, the resetting member 55, pivoting to its fourth position, exerts a displacement force FD on the or each trigger member 40 against which it is supported.

Le ou chaque organe de déclenchement 40 en appui contre l'organe de réarmement 55 est alors déplacé jusqu'à sa position armée.The or each trigger member 40 bearing against the resetting member 55 is then moved to its armed position.

Si plusieurs organes de déclenchement 40 se trouvaient dans leur position de déclenchement, ces organes de déclenchement 40 sont ramenés simultanément par l'organe de réarmement 55 dans leur position armée respective.If several triggering members 40 were in their tripping position, these tripping members 40 are brought simultaneously by the resetting member 55 in their respective armed positions.

L'utilisation d'un unique organe de réarmement 55 intégré au mécanisme de commande 25 permet de simplifier la réalisation du dispositif de coupure 10. En outre, le dispositif de coupure 10 est plus fiable que les dispositifs de coupure de l'état de la technique, qui comprennent un organe de réarmement intégré à chaque déclencheur et sont donc susceptibles d'être rendus inopérants suite à la défaillance d'un seul organe de réarmement.The use of a single reset member 55 integrated in the control mechanism 25 makes it possible to simplify the production of the cut-off device 10. In addition, the cut-off device 10 is more reliable than the cut-off devices of the state of the cut-off device. technical, which include a resetting member integrated with each trigger and are therefore likely to be rendered inoperative following the failure of a single reset member.

L'organe de réarmement 55 est aisé à fabriquer et d'un fonctionnement fiable de par sa grande simplicité. En particulier, l'organe de réarmement 55 assure de manière fiable le réarmement des différents déclencheurs 20. De fait, peu de pièces étant mises en jeu lors du réarmement, le fonctionnement de l'organe de réarmement 55 est peu sensible à un jeu mécanique.The resetting member 55 is easy to manufacture and reliable operation by its great simplicity. In particular, the resetting member 55 reliably ensures the resetting of the different trip units 20. In fact, as few parts are involved during the reset, the operation of the resetting member 55 is insensitive to mechanical play. .

En outre, si plusieurs déclencheurs 20 de types différents sont utilisés, l'organe de réarmement 55 nécessite une même force d'appui FA pour permettre le réarmement de chaque déclencheur 20. Ainsi, les forces exercées par l'organe de réarmement 55 sur les différents bras 75 de la manette 60 sont identiques, ce qui réduit les risques de torsion de la manette 60. Là encore, le dispositif de coupure 10 est plus fiable.In addition, if several different type of triggers 20 are used, the resetting element 55 requires the same support force FA to allow the reset of each trigger 20. Thus, the forces exerted by the resetting device 55 on the different arms 75 of the handle 60 are identical, which reduces the risk of twisting of the handle 60. Again, the cutoff device 10 is more reliable.

De plus, l'organe de réarmement 55 ne suppose pas que les organes de déclenchement 40 présentent des courses identiques.In addition, the resetting member 55 does not assume that the trigger members 40 have identical strokes.

La géométrie de la face d'appui 90 permet de minimiser les efforts exercés sur la manette 60 par l'organe de réarmement 55 tout en assurant que la force d'appui FA exerce toujours un couple de rotation suffisant sur l'organe de réarmement 55. En particulier, lorsque les galets 110 roulent contre la deuxième facette F2, l'angle entre la direction dans laquelle la force d'appui FA est exercée et une droite reliant le point d'appui au deuxième axe A2 est important et le couple est donc élevé.The geometry of the bearing face 90 minimizes the forces exerted on the handle 60 by the resetting member 55 while ensuring that the bearing force FA always exerts a sufficient torque on the resetting member 55 In particular, when the rollers 110 roll against the second facet F2, the angle between the direction in which the support force FA is exerted and a straight line connecting the fulcrum to the second axis A2 is important and the torque is so high.

Lorsque les galets 110 roulent contre la première facette F1, c'est-à-dire à la fin du mouvement de la manette 60 vers la deuxième position, le couple de rotation subi par la manette 60 est faible. En outre, l'orientation de la première facette F1 permet une grande amplitude de déplacement de l'organe de préhension 45.When the rollers 110 roll against the first facet F1, that is to say at the end of the movement of the handle 60 to the second position, the torque experienced by the handle 60 is low. In addition, the orientation of the first facet F1 allows a large range of movement of the gripping member 45.

L'invention a été décrite ci-dessus dans le cas où l'organe de réarmement 55 comporte deux paires de branches, chaque paire de branches comportant une première branche 95 et une deuxième branche 100. L'homme du métier comprendra aisément que le nombre de paires est susceptible de varier en fonction du nombre de déclencheurs 20 utilisés.The invention has been described above in the case where the resetting member 55 comprises two pairs of branches, each pair of branches comprising a first branch 95 and a second branch 100. Those skilled in the art will readily understand that the number The number of pairs is likely to vary depending on the number of triggers used.

Selon une variante, le nombre de premières branches 95 est différent du nombre de deuxièmes branches 100. Par exemple, l'organe de réarmement 55 comporte une unique première branche 95 venant en appui contre la manette 60 et une pluralité de deuxièmes branches 100, une deuxième branche 100 pour chaque déclencheur 20.According to one variant, the number of first branches 95 is different from the number of second branches 100. For example, the resetting member 55 comprises a single first branch 95 bearing against the lever 60 and a plurality of second branches 100, a second branch 100 for each trigger 20.

Selon une autre variante, l'organe de réarmement 55 comporte une unique deuxième branche 100.According to another variant, the resetting element 55 comprises a single second branch 100.

Claims (10)

  1. Cut-off device (10) comprising:
    - a casing,
    - a cut-off member (15) which comprises an input connection pad (30) and an output connection pad (35) and is capable of switching between a closed position allowing the current to pass between the input connection pad (30) and the output connection pad (35) and an open position preventing the current from passing between the input connection pad (30) and the output connection pad (35), and
    - a control mechanism (25) for the cut-off member (15), the control mechanism (25) comprising a grip member (45) which is displaceable between a first position and a second position by an operator in order to control the displacement of the cut-off member (15) between the open position and the closed position, the cut-off member (15) being in the closed position when the grip member (45) is in the first position and being in the open position when the grip member (45) is in the second position, the casing further delimiting a plurality of locations each capable of receiving a trip device (20) comprising a tripping member (40) which is movable between an armed position and a tripped position, the tripping member (40) being configured to control the displacement of the cut-off member (15) from its closed position to its open position when the tripping member (40) passes from its armed position to its tripped position,
    the grip member (45) comprising a lever (60) which is movable in rotation about a first axis (A1) relative to the casing,
    the cut-off device (10) being characterised in that
    the control mechanism (25) further comprises a single resetting member (55) configured to displace each tripping member (40) from its tripped position to its armed position when the operator displaces the grip member (45) from the first position to the second position,
    the resetting member (55) being movable in rotation relative to the casing about a second axis (A2) parallel to the first axis (A1), the lever (60) coming to bear against the resetting member (55) when the grip member (45) is displaced by the operator from the first position to the second position.
  2. Cut-off device (10) according to claim 1, comprising trip devices (20), the resetting member (55) being configured to displace the tripping members (40) of the trip devices (20) conjointly from their tripped positions to their respective armed positions when the operator displaces the grip member (45) from the first position to the second position.
  3. Cut-off device (10) according to claim 1 or 2, wherein the lever comprises a handle (65), a bearing (70) configured to permit rotation of the lever (60) about the first axis (A1), and at least one arm (75) connecting the handle (65) to the bearing (70), the resetting member (55) comprising at least one first leg (95) and one second leg (100), the first leg (95) having a first end (E1) and a second end (E2), the first end (E1) bearing against the arm (75) or one of the arms (75) of the lever (60) and the second end (E2) enclosing the second axis (A2) in a plane perpendicular to the second axis (A2), the second leg (100) having a third end (E3) integral with the second end (E2) and a fourth end (E4) bearing against the tripping member (40) of a corresponding trip device (20).
  4. Cut-off device (10) according to claim 3, comprising a first trip device (20A) and a second trip device (20B), each trip device (20) being received in a corresponding location of the casing, a resetting force being defined for each trip device (20) as being the minimum value of the force that the resetting member (55) must apply to the tripping member (40) of the trip device (20) in order to displace the tripping member (40) from its tripped position to its armed position, wherein the resetting member (55) comprises two first legs (95) and two second legs (100), each first end (E1) bearing against the arm (75) or one of the arms (75) and each third end (E3) bearing against a corresponding tripping member (40), the resetting force of the first trip device (20A) being different from the resetting force of the second trip device (20B), each resetting force corresponding to a bearing force exerted at a bearing point of an arm (75) of the lever (60) on the corresponding first leg (95), the resetting member (55) being configured so that the bearing force corresponding to the first trip device (20A) is equal to the bearing force corresponding to the second trip device (20B).
  5. Cut-off device (10) according to claim 4, wherein the resetting force of the first trip device (20A) and the resetting force of the second trip device (20B) have the same moment relative to the second axis (A2).
  6. Cut-off device (10) according to claim 5, wherein each second leg (100) comprises a first portion (P1) and a second portion (P2), the first portion (P1) connecting the second portion (P2) to the second end (E2) of the corresponding first leg (95), each second portion (P2) having a circular cylindrical face (120) about a corresponding third axis (A3), each third axis (A3) being parallel to the second axis (A2), the cylindrical face (120) coming to bear against the tripping member (40) in order to displace the tripping member (40) to its armed position, an offset between the third axes (A3) being strictly greater than zero.
  7. Cut-off device (10) according to any one of claims 3 to 6, wherein the lever (60) comprises two arms, the resetting member (55) comprising two first legs (95) and two second legs (100), each first leg (95) extending in a direction (D1) perpendicular to the second axis (A2), the resetting member (55) further comprising a rod (105) which secures the first ends (E1) of the two first legs (95) together, the rod (105) extending in a direction (D3) parallel to the second axis (A2).
  8. Cut-off device (10) according to any one of claims 3 to 7, wherein the or each arm (75) of the lever (60) has a bearing face (90), the first end (E1) of a corresponding first leg (95) bearing against the bearing face (90), a distance being defined for each point of the bearing face between the point under consideration and the first axis (A1), an angle being defined for each point of the bearing face between the tangent to the bearing face at the point under consideration and a straight line connecting the point to the first axis (A1), the bearing face (90) being concave and the angle increasing with the distance.
  9. Cut-off device (10) according to any one of claims 3 to 8, wherein each first leg (95) comprises a roller (110) configured to roll or slide against the or at least one arm (75) of the lever (60).
  10. Cut-off device (10) according to any one of claims 1 to 9, wherein the cut-off device (10) is a circuit breaker.
EP17191259.5A 2016-09-16 2017-09-15 Breaking device comprising a resetting organ Active EP3297016B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17191259T PL3297016T3 (en) 2016-09-16 2017-09-15 Breaking device comprising a resetting organ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1658708A FR3056330B1 (en) 2016-09-16 2016-09-16 CUT-OFF DEVICE INCLUDING A RE-ARMING BODY

Publications (2)

Publication Number Publication Date
EP3297016A1 EP3297016A1 (en) 2018-03-21
EP3297016B1 true EP3297016B1 (en) 2019-02-27

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Application Number Title Priority Date Filing Date
EP17191259.5A Active EP3297016B1 (en) 2016-09-16 2017-09-15 Breaking device comprising a resetting organ

Country Status (8)

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US (1) US10395864B2 (en)
EP (1) EP3297016B1 (en)
CN (1) CN107833803B (en)
BR (1) BR102017014876B1 (en)
ES (1) ES2726731T3 (en)
FR (1) FR3056330B1 (en)
PL (1) PL3297016T3 (en)
RU (1) RU2756692C2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950101B (en) * 2019-04-10 2024-03-22 宏秀电气有限公司 Operating mechanism of outdoor high-voltage circuit breaker, outdoor high-voltage circuit breaker and use method
CN112837978B (en) * 2021-01-21 2023-05-09 浙江赫斯电气有限公司 High-voltage circuit breaker switch with overload outage alarming function

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SU399019A1 (en) * 1971-06-07 1973-09-27 DRIVE FOR LINE-COMMUTATION DEVICES
US4246558A (en) * 1979-01-22 1981-01-20 Gould Inc. Auxiliary feature modules for circuit breakers
US6211758B1 (en) * 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism
US20020130743A1 (en) * 2001-03-13 2002-09-19 Castonguay Roger Neil Circuit breaker modular device reset
CN1253912C (en) * 2003-05-29 2006-04-26 刘平 Electric power switch apparatus
KR100914203B1 (en) * 2007-08-10 2009-08-27 엘에스산전 주식회사 Mold cased circuit breaker with a contact on mechanism
DE102008064568A1 (en) * 2008-12-19 2010-06-24 Siemens Aktiengesellschaft Module for circuit-breaker for providing overvoltage-and under-voltage protection, has release member provided with mechanism, and housing kept open at opposite sides and placing rotatably mounted lever bodies at opposite sides
CN101640146B (en) * 2009-08-11 2012-01-11 上海永继电气股份有限公司 Tripping device of circuit breaker
CN102760618B (en) * 2011-04-26 2015-04-08 西门子公司 Tripping mechanism of circuit breaker and circuit breaker
RU163118U1 (en) * 2015-10-08 2016-07-10 Индивидуальный предприниматель Кашичкина Елена Евгеньевна AUTOMATIC CIRCUIT BREAKER FREE MECHANISM

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Also Published As

Publication number Publication date
EP3297016A1 (en) 2018-03-21
US10395864B2 (en) 2019-08-27
BR102017014876A2 (en) 2018-04-03
BR102017014876B1 (en) 2024-03-05
RU2756692C2 (en) 2021-10-04
US20180082810A1 (en) 2018-03-22
FR3056330A1 (en) 2018-03-23
RU2017130314A3 (en) 2020-09-29
CN107833803B (en) 2022-02-08
RU2017130314A (en) 2019-03-01
ES2726731T3 (en) 2019-10-08
FR3056330B1 (en) 2020-10-16
CN107833803A (en) 2018-03-23
PL3297016T3 (en) 2019-11-29

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