EP4092711A1 - Elektrische schutzvorrichtung - Google Patents

Elektrische schutzvorrichtung Download PDF

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Publication number
EP4092711A1
EP4092711A1 EP22174234.9A EP22174234A EP4092711A1 EP 4092711 A1 EP4092711 A1 EP 4092711A1 EP 22174234 A EP22174234 A EP 22174234A EP 4092711 A1 EP4092711 A1 EP 4092711A1
Authority
EP
European Patent Office
Prior art keywords
slider
hook
trigger
contact
protection device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22174234.9A
Other languages
English (en)
French (fr)
Other versions
EP4092711B1 (de
EP4092711C0 (de
Inventor
Thomas Pupin
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
Publication of EP4092711A1 publication Critical patent/EP4092711A1/de
Application granted granted Critical
Publication of EP4092711B1 publication Critical patent/EP4092711B1/de
Publication of EP4092711C0 publication Critical patent/EP4092711C0/de
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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/528—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/507—Latching devices between operating and release mechanism being collapsible, e.g. yielding elastically, when the opening force is higher than a predetermined value
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H71/405—Combined electrothermal and electromagnetic mechanisms in which a bimetal forms the inductor for the electromagnetic mechanism
    • 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
    • H01H83/22—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 the other condition being imbalance of two or more currents or voltages

Definitions

  • the present invention relates to an electrical protection device.
  • EP1884976A1 describes a switching device which can be integrated into an electrical panel of an electrical installation.
  • the switching device comprises a handle which, to control the opening and closing of two movable contacts, controls a movable core via a connecting rod.
  • the movable contacts are themselves attached to the movable core by a respective connecting rod to be actuated by the movable core.
  • the housing comprises a respective curved rail for each movable contact, which guides one end of the movable contact.
  • a respective spring is also provided which keeps the movable contact in contact with a fixed contact when the movable contact is in the closed position, or in contact with a pin formed by the housing, when the movable contact is in the open position, which keeps the moving contact away from the fixed contact.
  • the switching device also comprises an electromagnetic actuator and a thermal actuator, which are configured to trigger a setting in the open position of the movable contacts. For this, these actuators tilt a lever which releases the movable core, which allows the movable contacts to be returned to the open position, as well as the lever, via the movable core.
  • the invention therefore aims in particular to obtain a new miniaturized electrical protection device which is triggered quickly in the event of an electrical fault.
  • the subject of the invention is an electrical protection device, comprising: a casing; a first conduction path, comprising a first movable contact, which is movable relative to the housing, between: a conduction position, in which the first movable contact electrically connects a first input terminal to a first output terminal belonging to the first conduction path, and an isolation position, in which the first input terminal and the first output terminal are electrically isolated from each other.
  • the electrical protection device further comprises a slider, to which the first movable contact is attached, the slider being sliding relative to the housing along a slider axis, between an armed position, where the first movable contact is in the conduction position, and a tripped position, where the first movable contact is in a position of isolation; a first contact spring, applying a first contact force on the first moving contact by bearing on the casing, the first moving contact tending to drive the slider towards the triggered position, when the slider is in the armed position, under the action the first contact effort; a switching control, which is configured to change between a closing configuration and an opening configuration; and a first trigger, configured to be energized by an electrical fault of a first type.
  • the electrical protection device further comprises a first hook, which is carried by the slider, while being movable relative to the slider, between: a locking position, to secure the configuration of the switching control to the position of the slider, so that the slider is in the triggered position when the switching control is in the opening configuration, and so that the slider is in the armed position when the switching control is in the closing configuration, the switching control then maintaining the slider in the armed position, and an unlocking position, in which the first hook allows the slider to be moved from the armed position to the triggered position even if the switching control is in the closed configuration.
  • the first trigger is configured to trigger a tilting of the first hook from the locking position to the unlocking position when the first trigger is excited by an electrical fault of the first type.
  • An idea underlying the invention is to provide that the slider is selectively subject to, and released from, the switching control, using the first hook, carried by the slider itself.
  • an assembly comprising the slider and the first contact is advantageously subject to the switching control, so that a user can control the first movable contact via the switching control.
  • the slider is released by moving the first hook to the unlocked position, so that the first movable contact is quickly placed in the isolated position under the action of the first contact spring, regardless of the switch control configuration. Provision is advantageously made for the switching control to then be brought back to the opening configuration by separate means.
  • the idea of boarding the first hook on the slide makes it possible to physically combine these two elements to improve the general compactness of the electrical protection device, while allowing the first trip device to very quickly switch the first moving contact to the isolated position when an electrical fault of the first type occurs.
  • the switching control comprises: a handle, which is rotatable relative to the housing around a handle axis, the slider axis being orthoradial to the handle axis; a control rod, which comprises: a primary end, via which the control rod is attached to the joystick while being pivotable with respect to the joystick about a primary axis, parallel to the joystick axis; and a secondary end, which is captured by the first hook, when the first hook is in the locking position, to secure the configuration of the switch control and the position of the slider.
  • the handle is rotatable: up to a closed orientation, when the switching control is in the closed configuration, in which the handle is in rotational abutment against the housing, and up to an orientation of opening, when the switch control is in the opening configuration.
  • the switching control comprises a control spring, which exerts a control force on the lever, relative to the housing, tending to rotate the lever to the opening orientation.
  • control rod is arranged so that, when the configuration of the switching control is subject to the position of the slider, the switching control is in the closed configuration and the slider is in the armed position: the slider maintains the lever in rotational abutment against the housing, in the closed orientation, by means of the control rod, under the action of the first moving contact receiving the first contact force, and the control rod opposes a movement of the slider towards the triggered position by resting on the handle, itself in rotational abutment against the housing in the closing orientation.
  • the first hook and the second hook are independently pivotable relative to the slider around a same hook axis, so that: when the first hook and the second hook are in the locking position, the secondary end is radially captured between the first hook and the second hook, thus securing the control configuration switch to slider position; when the first hook is in the unlocked position while the second hook is in the locked position, the first hook is away from the secondary end, thus allowing the slider to be moved from the cocked position to the triggered position; and when the second hook is in the unlocked position while the first hook is in the locked position, the second hook is away from the secondary end, thereby allowing the slider to be moved from the cocked position to the triggered position .
  • the secondary end comes into radial abutment against a first cam surface belonging to the first hook , while the first cam surface is positioned at a first angle relative to the primary axis, around the secondary end; and the secondary end comes into radial abutment against a second cam surface belonging to the second hook, while the second cam surface is positioned at a second angle with respect to the primary axis, around the secondary end, so that the secondary end is interposed between the first cam surface and the second cam surface and that the first angle and the second angle are of different value.
  • the electrical protection device comprises a trigger, which is carried by the slide while being movable relative to the slide, between: a holding position, in which the trigger holds the first hook in the locking position, and a release, in which the trigger authorizes the first hook to move from the locking position to the unlocking position.
  • the first trigger is configured to move the trigger from the hold position to the release position to trigger a tilting of the first hook from the locking position to the unlocking position, when the first trigger is energized by an electrical fault of the first type.
  • the electrical protection device comprises a trigger spring, tending to return the trigger to the holding position and the first hook to the locking position, when the trigger is in the release position and the first hook is in the unlocking position. .
  • the trigger is pivotable with respect to the slider, around a first axis of the trigger, and comprises: a holding end, which, when the trigger is in the holding position, cooperates mechanically with a hooked end belonging to the first hook so that the trigger holds the first hook in the locking position; and an actuation end, through which the first trigger moves the sear from the hold position to the release position when the first trigger is energized by an electrical fault of the first type.
  • the electrical protection device further comprises a reset prop, which is carried by the slider while being movable relative to the slider between an unhooked position and a reset position, the reset prop being configured to: drive the trigger from the hold position to the release position, when the reset handle is driven from the reset position to the release position, and to reset the first trigger, when the reset handle is driven from the position off-hook to reset position.
  • the first trigger is configured to move the sear from the hold position to the release position by moving the reset lever from the reset position to the release position.
  • the housing comprises a reset pin, to drive the reset strut from the unhooked position to the reset position under the action of a movement of the slider from the cocked position to the triggered position.
  • the electrical protection device comprises an indicator, which is movable relative to the casing between an initial position and a signaling position.
  • the trigger is configured to move the indicator to the signaling position, when the trigger is moved from the hold position to the release position.
  • the slider is configured to move the indicator to the initial position when the slider is moved from the triggered position to the armed position.
  • the first conduction path comprises a first fixed contact, against which the first movable contact bears in a first contact direction perpendicular to the slide axis, when the first movable contact is in the conduction position, to connect electrically the first input terminal to the first output terminal, the first movable contact being away from the first fixed contact when the first movable contact is in the isolated position, so that the first input terminal and the first output terminal are isolated from each other.
  • the first contact spring is configured so that the first contact force maintains the first moving contact pressing against the first fixed contact in the first contact direction, when the first moving contact is in the conduction position.
  • the electrical protection device comprises a second conduction path, electrically insulated from the first conduction path and comprising a second movable contact and a second fixed contact, the second movable contact being attached to the slider and being movable relative to the housing, between: a conduction position, in which the slider is in the armed position and the second movable contact bears against the second fixed contact along a second contact direction, which is opposite to the first contact direction, to electrically connect a second input terminal to a second output terminal belonging to the second conduction path, and an isolation position, in which the slider is in the triggered position and the second movable contact is away from the second fixed contact, so that the second input terminal and the second output terminal are electrically isolated from each other.
  • the electrical protection device comprises a second contact spring, applying a second contact force on the second movable contact by bearing on the housing, the second movable contact tending to drive the slider towards the triggered position, when the slider is in the armed position, under the action of the second contact force, the second contact spring being configured so that the second contact force keeps the second movable contact bearing against the second fixed contact in the second direction of contact, when the second moving contact is in the conduction position.
  • the figures 1 to 6 show an electrical protection device 1 in accordance with a first embodiment of the invention.
  • the device 1 is configured to be integrated into a modular electrical panel, for an electrical installation, for example equipping a building.
  • the device 1 of this example comprises a housing 2, conduction paths 3 and 4, a switching control 5 and triggers 6, 7 and 8, an interrupting chamber 9, a slider 10, contact springs 12 and 13 and hooks 14 and 15. On the figures 1 to 6 , case 2 is cut away to show its internal contents.
  • the device 1 defines a direction of width X1, a direction of depth Y1 and a direction of height Z1, which are mutually perpendicular and fixed with respect to the box 2.
  • the height direction Z1 is directed vertically upwards.
  • the box 2 constitutes an essentially closed and electrically insulating envelope.
  • the case 2 advantageously comprises a front 21 and a back 22, distributed along the direction Y1, with the front 21 in the direction Y1 with respect to the back 22.
  • the case 2 advantageously comprises a lower end 23 and an upper end 24 distributed along the direction Z1, with the upper end 24 in the direction Z1 relative to the lower end 23.
  • the housing advantageously comprises a right side and a left side, preferably flat and parallel, distributed along the direction X1, with the left side in the direction X1 with respect to the right flank.
  • the front 21 and the back 22, as well as the left and right sides connect the end 23 to the end 24 in the direction Z1.
  • the front 21 and the back 22 each connect the right side to the left side, in the direction X1.
  • Each side connects the back 22 to the front 21, in the direction Y1.
  • the casing 2 comprises an internal partition 25, which extends parallel to the directions Y1 and Z1 and separates an internal volume of the casing 2 into a right compartment 26, visible on the figure 1 , 3 and 5 , and in a left compartment 27, visible on the figure 2 , 4 and 6 .
  • the right 26 and left 27 compartments are distributed along the direction X1.
  • the right compartment 26 is delimited by the partition 25 and the right side in the direction X1, by the ends 23 and 24 in the direction Z1, and by the front 21 and the back 22 in the direction Y1.
  • the left compartment 27 is delimited by the partition 25 and the left side in the direction X1, by the ends 23 and 24 in the direction Z1, and by the front 21 and the back 22 in the direction Y1.
  • the device 1 is advantageously designed to be fixed on a rail belonging to the electrical panel.
  • the device 1 advantageously comprises, on the back 22, any suitable fastening means, such as a snap-fit clamp, by means of which the device 1 can be fixedly attached to said rail.
  • the direction X1 is parallel to the rail.
  • the same rail can thus support several protective devices of the same type as the device 1, arranged side by side adjacently along the rail, side against side, parallel to the direction X1.
  • Device 1 is preferably bipolar, in that it comprises two conduction paths 3 and 4, as illustrated in the figures.
  • device 1 is preferably bipolar, in that it comprises two conduction paths 3 and 4, as illustrated in the figures.
  • Path 3 has an input terminal 31, an output terminal 32, a movable contact 33 and a fixed contact 34, visible on the figure 1 , 3 and 5 .
  • Path 4 comprises an input terminal 41, an output terminal 42, a movable contact 43 and a fixed contact 44, visible on the figure 2 , 4 and 6 .
  • each conduction path is electrically isolated from the other conduction paths.
  • each conduction path is preferably placed entirely in one of the respective compartments of the housing.
  • the path 3 is placed in the compartment 26 and the path 4 is placed in the compartment 27.
  • the internal partition 25 is interposed between the paths 3 and 4, so as to guarantee that they are electrically isolated from one another. 'other.
  • the input terminals 31 and 41 are preferably arranged at the upper end 24, so as to be able to be electrically connected to respective supply means belonging to the electrical panel.
  • terminal 31 is connected to a first supply comb belonging to the electrical panel
  • input terminal 41 is connected to a second supply comb belonging to the electrical panel.
  • Each conduction path constitutes a separate pole of device 1.
  • path 3 constitutes a phase pole
  • path 4 constitutes a neutral pole.
  • each conduction path is designed to be brought to a distinct potential.
  • the device 1 is designed to be used at low voltage, that is to say a voltage between 100V (Volts) and 600V, for example a voltage of 230V.
  • the output terminals 32 and 42 are preferably arranged at the lower end 23, so as to be able to be electrically connected to an electrical circuit supplying receiving loads, for example, in the case of a building, household appliances or 'lighting. These electrical loads are then supplied with the electrical energy supplied to the input terminals 31 and 41, through the device 1.
  • Fixed contact 34 is fixed relative to housing 2, and is electrically connected to terminal 31.
  • Movable contact 33 is electrically connected to terminal 32.
  • Fixed contact 34 is arranged in direction Z1 relative to movable contact 33.
  • the movable contact 33 comprises a conductive end 35 and an attachment end 36, arranged in a plane parallel to the directions Y1 and Z1.
  • the movable contact 33 is movable between a conduction position, shown in the figure 1 , and an isolated position, shown on the figure 3 and 5 . This movement takes place in the plane parallel to the directions Y1 and Z1.
  • the box 2 comprises a curved guide rail 38, carried by the partition 25, to guide the end 36 of the contact 33 along a curved linear trajectory, in the plane parallel to the directions Y1 and Z1.
  • the end 36 in the conduction position, is positioned at a first end of the curved guide rail 38.
  • the end 36 In the isolation position, is positioned at a second end of the curved guide rail 38, located in the directions Y1 and Z1 with respect to the first end. Passing from one end to the other of the curved guide rail 38, the end 36 advantageously describes a curve in the plane parallel to the directions Y1 and Z1, preferably centered on the fixed contact 34.
  • the movable contact 33 In the conduction position, the movable contact 33 is in electrical contact with the fixed contact 34, which electrically connects the input terminal 31 to the output terminal 32. In particular, the movable contact 33 is then bearing against the contact. fixed 34 along a contact direction Z34, which is parallel and in the same direction as the direction Z1. In particular, the movable contact 33 bears against the fixed contact 34 via the end 35. This support is preferably punctual, that is to say that the end 35 is not prevented from rotating. around an axis parallel to the direction X1. In the conduction position, the movable contact 33 is away from a tilting pin 28 belonging to the housing 2, in a direction opposite to the direction of contact Z34. The pin 28 is for example carried by the partition 25.
  • the fixed contact 34 is arranged in the direction Z1 and in a direction opposite to the direction Y1 with respect to the tilting pin 28.
  • the tilting pin 28 is arranged between the slider 10 and stationary contact 34.
  • end 36 of contact 33 is positioned at the end of rail 38 which is in the opposite direction to direction Z1, which ensures that contact 33 is away from of the tilting pin 28 while being in contact with the fixed contact 34, the movable contact 33 then being arranged obliquely, with the end 35 in the direction Z1 with respect to the end 36.
  • the movable contact 33 In the isolated position, the movable contact 33 is moved away from the fixed contact 34, so as to be electrically isolated from it, which breaks the electrical connection between the terminals 31 and 32, so that the terminals 31 and 32 are electrically isolated. each other.
  • the conductive end 35 is remote from the fixed contact 34 in a direction opposite to the direction of contact Z34.
  • the movable contact 33 bears against the tilting pin 28, in the direction Z34.
  • the movable contact 33 bears against the pin 28 via a bearing surface provided between its ends 35 and 36.
  • This bearing surface of the movable contact 33 and the pin 28 have a complementary shape to obtain support in a plane parallel to the directions Y1 and Z1, which tends to orient contact 33 in an orientation, here substantially parallel to direction Y1, where conductive end 35 is remote from fixed contact 34.
  • the contact spring 12 is preferably arranged in the compartment 26.
  • the function of the contact spring 12 is to apply, by elasticity, a force F12 called "contact force", on the movable contact 33, bearing on the housing 2.
  • This force F12 is directed obliquely, so as to have a component in the direction Z1, and, at least when the contact 33 is in the conduction position, a component in the direction Y1.
  • the spring 12 is a tension spring, which is attached to the contact 33 at an intermediate point between the ends 35 and 36 and attached to the housing 2 via the partition 25, in the direction Z1 and Y1 with respect to at its point of attachment to contact 33. Provision is advantageously made for the point of attachment of spring 12 to contact 33 to be at the height of pin 28.
  • the component of the force F12 in direction Z1 maintains contact 33 in bearing against contact 34 for the conduction position, and keeps contact 33 bearing against pin 28 for the isolation position.
  • Fixed contact 44 is fixed relative to housing 2, and is electrically connected to terminal 42.
  • Movable contact 43 is electrically connected to terminal 41.
  • Movable contact 43 is arranged in direction Z1 relative to fixed contact 44.
  • the movable contact 43 comprises a conductive end 45 and an attachment end 46, arranged in a plane parallel to the directions Y1 and Z1.
  • the movable contact 43 is movable between a conduction position, shown in the figure 2 , and an isolated position, shown on the figure 4 and 6 . This movement takes place in the plane parallel to the directions Y1 and Z1. In other words, moving contacts 33 and 43 move in parallel.
  • the movement of the movable contacts 33 and 43 is effected in a mirror with respect to a plane parallel to the directions Y1 and Z1, with an offset along the direction X1.
  • the housing 2 comprises a curved guide rail 48, carried by the partition 25, on an opposite face with respect to the rail 38.
  • the curved guide rail 48 guides the end 46 of the contact 43 along a curved linear trajectory, in the plane parallel to directions Y1 and Z1.
  • the end 46 is positioned at a first end of the curved guide rail 48.
  • the end 46 is positioned at a second end of the curved guide rail 48, located in a opposite direction to direction Z1 with respect to the first end. Passing from one end to the other of the curved guide rail 48, the end 46 advantageously describes a curve in the plane parallel to the directions Y1 and Z1, preferably centered on the fixed contact 44.
  • the movable contact 43 In the conduction position, the movable contact 43 is in electrical contact with the fixed contact 44, which electrically connects the input terminal 41 to the output terminal 42. In particular, the movable contact 43 is then bearing against the contact. stationary 44 along a contact direction Z44, which is parallel and in the opposite direction to the direction Z1. In other words, the Z44 direction is opposite to the Z34 direction. In particular, the movable contact 43 bears against the fixed contact 44 via the end 45. This support is preferably punctual, that is to say that the end 45 is not prevented from rotating. around an axis parallel to the direction X1. In the conduction position, the movable contact 43 is away from a tilting pin 29 belonging to the housing 2, in a direction opposite to the direction of contact Z34.
  • the pin 29 is for example carried by the partition 25, on a face opposite with respect to that carrying the pin 28.
  • the pin 29 is disposed in the directions Y1 and Z1 with respect to the fixed contact 44.
  • the pin 29 is disposed between the slider 10 and the fixed contact 44.
  • the end 46 of the contact 43 is positioned at the end of the rail 48 which is in the direction Z1, which guarantees that the contact 43 is away from the pin 29 while being in contact with the fixed contact 44, the movable contact 43 then being arranged obliquely, with the end 46 in the direction Z1 with respect to the end 45.
  • the contacts are in the position of conduction, they are then arranged in a cross or in a "V" with respect to each other.
  • the movable contact 43 In the isolated position, the movable contact 43 is moved away from the fixed contact 44, so as to be electrically isolated from it, which breaks the electrical connection between the terminals 41 and 42, so that the terminals 41 and 42 are electrically isolated. each other.
  • the conductive end 45 is remote from the fixed contact 44 in a direction opposite to the direction of contact Z44.
  • the movable contact 43 bears against the tilting pin 29, in the direction Z44.
  • the moving contact 43 bears against the pin 29 via a bearing surface provided between its ends 45 and 46.
  • This bearing surface of the moving contact 43 and the pin 29 have a complementary shape to obtain support in a plane parallel to the directions Y1 and Z1, which tends to orient the contact 43 in an orientation, here substantially parallel to the direction Y1, where the conductive end 45 is remote from the fixed contact 44.
  • the end 46 of the mobile contact 43 is positioned at the end of the rail 48 which is opposite the direction Z1, so that the mobile contact 43 as a whole is pivoted around of an axis parallel to the direction X1, with respect to its orientation in the conduction position.
  • the contacts 33 and 43 are parallel to each other.
  • the contact spring 13 is preferably arranged in the compartment 27.
  • the function of the contact spring 13 is to apply, by elasticity, a force F13 called "contact force", on the movable contact 43, bearing on the housing 2.
  • This force F13 is directed obliquely, so as to have a component in a direction opposite to direction Z1, and, at least when contact 33 is in the conduction position, a component in direction Y1.
  • the spring 13 is a tension spring, which is attached to the contact 43 at an intermediate point between the ends 45 and 46, and attached to the housing 2 via the partition 25, in a direction opposite to the direction Z1 and in the direction Y1 with respect to its attachment point on the contact 43.
  • the attachment point of the spring 13 on the contact 43 is at the height of the pin 29.
  • the springs 12 and 13 are arranged in a cross or “V” shape.
  • the component of the force F13 opposite the direction Z1 keeps the contact 43 bearing against the contact 44 for the conduction position, and keeps the contact 43 bearing against the pin 29 for the isolation position.
  • the interrupting chamber 9 comprises for example a stack of metal plates 91, sometimes called fins or separators, superimposed at a distance from one another, here in the direction Y1.
  • the chamber 9 advantageously comprises insulating cheeks, between which the plates 91 are arranged.
  • the plates 91 are, for example, held between the partition 25 and the right side of the casing 2.
  • the fixed contact 34 is preferentially extended by an arcing horn 92 belonging to the chamber 9, curved towards the inside of the interrupting chamber 9
  • Interrupting chamber 9 also advantageously comprises a switching horn 93, electrically connected to path 3, between contact 33 and terminal 32. Horns 92 and 93 are arranged facing each other.
  • the trip device 6 is configured to be excited by an electrical fault of a predetermined type, namely an electrical fault of the short-circuit type, which is liable to occur between the conduction paths 3 and 4, or between the conduction path 3 and earth.
  • the trigger 6 is therefore in particular excited by a short-circuit which would occur downstream of the output terminals 32 and 42, on the electrical circuit supplied through the device 1, or on one of its loads. In this case, it is a phase-neutral or phase-earth short-circuit.
  • the trigger 6 is arranged, essentially, in the compartment 26, and connected in series on the conduction path 3. Along the direction Z1, the trigger 6 is arranged between the terminal 31 and the fixed contact 34. Next the direction Y1, the trigger 6 is arranged between the interrupting chamber 9 and the front 21.
  • the trigger 6 is in the form of a magnetic actuator, which here comprises an electromagnetic winding 61 and a mobile core 62, as best seen on the figure 1 and 5 .
  • the input terminal 31 is electrically connected to the fixed contact 34 via the trigger, in particular the electromagnetic winding 61.
  • the intensity of the current flowing in winding 61 suddenly becomes very high, so as to generate an electromagnetic force sufficient to move mobile core 62 from a rest position, shown on the figure 1 , to a triggered position, shown on the figure 5 , with respect to the housing 2.
  • the displacement of the core 62 from the rest position to the triggered position is carried out in a direction opposite to the direction Z1.
  • the current flowing in the winding 61 is no longer high enough to maintain the core 62 in the tripped position, so that the core 62 is advantageously returned to the rest position, for example by a spring belonging to the trigger 6, not shown.
  • the trigger 7 is configured to be excited by an electrical fault of another predetermined type, namely an electrical fault of the overload type, which is liable to occur between the conduction paths 3 and 4.
  • the trigger 7 is therefore in particular excited by an overload which would occur downstream of the output terminals 32 and 42, on the electrical circuit supplied through the device 1, or on one of its loads. This type of fault can occur when one or more loads connected to this electrical circuit impose an excessive current demand.
  • trigger 7 is entirely placed in compartment 26 and connected in series on conduction path 3. In direction Z1, trigger 7 is placed between terminal 32 and moving contact 33.
  • the trigger 7 is in the form of a thermal actuator, which is here formed by an electrically conductive and heat-deformable bimetallic strip.
  • the movable contact 33 is electrically connected to the output terminal 32 via the trigger 7, that is to say here via the bimetallic strip.
  • the trip unit 8 is configured to be excited by an electrical fault of another predetermined type, namely an electrical fault of the differential type, which is liable to occur between the conduction paths 3 and 4 or between the conduction path 3 and Earth.
  • the trigger 8 is therefore in particular excited by a current leak to earth, which would occur downstream of the output terminals 32 and 42, then causing a difference between the value of the intensity of the current flowing within the path 3 and the value of the intensity of the current flowing in the opposite direction within path 4.
  • the trigger 8 extends both in the compartments 26 and 27, crossing the partition 25.
  • the trigger 8 is advantageously arranged between on the one hand, the output terminals 32 and 42, and on the other hand, the contacts 33, 34, 43 and 44.
  • the trigger 8 comprises a differential sensor 81, which extends both in the compartments 26 and 27, being arranged along the back 22 of the casing 2, and a relay 82, which extends only into compartment 27, being placed between facade 21 and differential sensor 81.
  • Differential sensor 81 comprises for example a ferromagnetic core, carrying two electromagnetic windings, one formed by path 3 and the other formed by path 4.
  • the electromagnetic winding of path 3 is advantageously formed by a part of path 3 which connects moving contact 33 to terminal 32, more precisely by part of path 3 between the trigger 7 and the output terminal 32.
  • the winding nt electromagnetic path 4 is advantageously formed by a part of the path 4 between the fixed contact 44 and the output terminal 42.
  • the displacement of the movable rod 83 from the rest position to the triggered position is carried out in the direction Z1.
  • the movable rod 83 Once the movable rod 83 has reached the tripped position, it must be brought back to the rest position to reset the relay 82 and thus again allow the relay 82 to actuate the rod 83 in the event of a differential fault, as explained below.
  • the slider 10 is partially visible on the figures 1 to 6 , and is best seen on the figure 7 .
  • the slider 10 comprises a part 101, which extends into the compartment 26 and a part 102, which extends into the compartment 27.
  • the slider 10 passes through the partition 25.
  • the slider 10 is attached to the housing 2, via a part intermediate connecting the parts 101 and 102, being sliding relative to the housing 2 along a slider axis Y10.
  • the slide axis Y10 is advantageously parallel to the direction Y1 and fixed with respect to the housing 2.
  • the axis Y10 is perpendicular to the directions Z34 and Z44.
  • the slider 10 slides along a notch made in the partition 25.
  • the slider 10 slides relative to the housing between a position called “armed position”, shown on the figure 1 and 2 , and a so-called “triggered position”, shown on the figures 3 to 6 .
  • the triggered position is in the direction Y1 with respect to the armed position.
  • slider 10 is prevented from rotating relative to housing 2.
  • slider 10 is fixed relative to housing 2 in directions X1 and Z1.
  • the movable contact 33 is attached to the slider 10 via the attachment end 36.
  • the device 1 comprises a connecting rod 37 via which the contact 33 is attached to the slider 10, via an arm 103 formed by the part 101.
  • the movable contact 33 is pivotable with respect to the connecting rod 37 around a first axis parallel to the direction X1 and centered on the attachment end 36.
  • the connecting rod 37 is itself pivoting by relative to the slider 10 around a second axis parallel to the direction X1. Thanks to this coupling by the connecting rod 37, the movement of the contact 33 is linked to the movement of the slider 10, and vice versa.
  • the slider 10 drives the contact 33 from the isolation position to the conduction position, via the connecting rod 37.
  • the slider 10 drives the contact 33 from the conduction position to the isolation position, via the connecting rod 37.
  • the contact 33 drives the slider 10 from the armed position to the triggered position, via the connecting rod 37.
  • the contact 33 transmits to the slider 10, via the connecting rod 37, the component of the force F12 in direction Y1.
  • the force F12 therefore tends to bring the slider 10 back to the triggered position, and the contact 33 to the isolated position.
  • the spring 12 therefore has two functions, namely tending to bring the assembly including the contact 33 and the slider 10 back in the direction Y1 and to bring the contact 33 into contact in the direction Z34.
  • the movable contact 43 is attached to the slider 10 via the attachment end 46.
  • the device 1 comprises a connecting rod 47 via which the contact 43 is attached to the slider 10, via an arm 104 formed by the part 102.
  • the arms 103 and 104 are arranged on either side of a plane comprising the slide axis Y10 and parallel to the direction X1, the arm 104 being in the direction Z1 by relative to the arm 103.
  • the movable contact 43 is pivotable relative to the connecting rod 47 about a first axis parallel to the direction X1 and centered on the attachment end 46.
  • the connecting rod 47 is itself pivoting relative to the slider 10 around a second axis parallel to the direction X1.
  • the movement of the contact 43 is linked to the movement of the slider 10, and vice versa. It follows that, when the slider 10 is driven from the tripped position to the armed position, the slider 10 drives the contact 43 from the isolation position to the conduction position, via the connecting rod 47. When the slider 10 is driven from the armed position to the tripped position, the slider 10 drives the contact 43 from the conduction position to the isolation position, via the connecting rod 47. Conversely, when the contact 43 is driven from the conduction position to the off position isolation, the contact 43 drives the slider 10 from the armed position to the triggered position, via the connecting rod 47. It follows that the contact 43 transmits to the slider 10, via the connecting rod 47, the component of the force F13 in direction Y1.
  • the force F13 in addition to the force F12, therefore tends to bring the slider 10 back to the triggered position, and the contact 43 to the isolated position.
  • the spring 13 therefore has two functions, namely tending to bring the assembly including the contact 43 and the slider 10 back in the direction Y1 and to bring the contact 43 into contact in the direction Z44.
  • the directions Z34 and Z44 being opposite, the system is in equilibrium along the direction Z1.
  • Hooks 14 and 15 are visible on the figures 1 to 6 , but are better visible on figure 7 and 8 .
  • Hooks 14 and 15 are attached to slider 10. More specifically, hook 14 is carried by part 101, being entirely disposed in compartment 26, whereas hook 15 is carried by part 102, being entirely disposed in the compartment 27.
  • the slider 10 is arranged between the hooks 14 and 15, in the direction X1.
  • the hook 14 comprises an attachment end 141, via which the hook 14 is attached to the slider 10, and a hanging end 142, free vis-à-vis the slider 10.
  • the hook 15 includes a attachment end 151, via which the hook 15 is attached to the slider 10, and a hooking end 152, free vis-à-vis the slider 10.
  • the hooking end 142 and the hooking end hung 152 are arranged on either side of a plane comprising the axis Y10 and parallel to the direction X1.
  • the hooks 14 and 15 are arranged in pliers.
  • the attachment end 142 and the arm 103 are arranged on either side of this plane.
  • the attachment end 152 and the arm 104 are arranged on either side of this plane.
  • the hook 14 is movable between a so-called “locking position”, shown on the figure 1 , 3 , 7 and 8 , and a position called the “unlocking position”, shown on the figure 5 .
  • the hook 14 To be mobile relative to the slider 10, provision is preferably made for the hook 14 to pivot relative to the slider 10 about an axis X14, called the “hook axis", which is perpendicular to the axis of the slider Y10 and fixed by relative to the slider 10.
  • the axis X14 is parallel to the direction X1.
  • Axis X14 passes through end 141.
  • axis X14 intersects axis Y10.
  • the hooked end 142 In the locking position, provision is advantageously made for the hooked end 142 to be closer to the end 152 than in the unlocking position.
  • the hook 15 is movable between a so-called “locking position”, shown on the figure 2 , 4 , 7 and 8 , and a position called the "unlocking position", shown on the figure 6 .
  • the hook 15 is movable independently of the hook 14, that is to say that the hook 15 can assume the locking position or the unlocking position, whether the hook 14 is in the locking or unlocking position, and vice versa.
  • this pivoting of the hook 15 is also performed around the axis of the hook X14.
  • the hooked end 152 In the locking position, provision is advantageously made for the hooked end 152 to be closer to the end 142 than in the unlocking position. In other words, when passing from the locking position to the unlocking position, the hooks 14 and 15 are separated from each other.
  • the switching control 5 is advantageously arranged on the facade 21 of the housing 2.
  • the switching control 5 comprises a lever 51, that is to say a lever, which passes through the facade 21.
  • the lever 51 comprises a base 52, via which the handle 51 is pivotally mounted with respect to the housing 2, around a handle axis X51, parallel to the direction X1 and fixed with respect to the housing 2.
  • the handle axis X51 is perpendicular to slide axis Y10. More precisely, the slide axis Y10 is orthoradial with respect to the lever axis X51, that is to say orthogonal to a radius passing through the slide axis Y10.
  • handle 51 By rotation of handle 51, handle 51 is movable between a closed orientation, shown in the figure 1 , 2 , 5 and 6 , and an opening orientation, shown on the figure 3 and 4 .
  • a closed orientation shown in the figure 1 , 2 , 5 and 6
  • an opening orientation shown on the figure 3 and 4 .
  • switching control 5 When handle 51 is in the closed orientation, switching control 5 is in a closed configuration.
  • switch control 5 When handle 51 is in the open orientation, switch control 5 is in an open configuration.
  • the handle 51 also includes a crank pin 53, projecting outside the housing 2, by means of which a user can actuate the handle 51 in rotation and also making it possible to view the current position of the handle 51.
  • the rotational travel of the lever 51 relative to the housing 2 is limited between the open and closed positions, by abutting the lever 51 in the open position against the housing 2, for a first direction of rotation, and in the closed position against the housing 2, in an opposite direction of rotation.
  • the switching control 5 advantageously comprises a spring 57, partially shown on the figure 1 and omitted in the other figures, called “control spring”, which, by elasticity, exerts a force, called “control force” on the handle 51, bearing against the housing 2.
  • the control force produces a torque on the lever 51, which tends to bring the lever back to the opening orientation, from the closing orientation.
  • This spring 57 is for example in the form of a torsion spring, in torsion around an axis parallel to the direction X1, which is housed inside the base 52 of the handle.
  • Switching control 5 also includes a control rod 54, which is visible on the figures 1 to 6 , being shown in broken lines on the figure 3 and 5 .
  • Link 54 includes a primary end 55, through which link 54 is attached to base 52 of handle 51. Through primary end 55, link 54 is pivoted relative to base. 52 around a primary axis X55.
  • the primary axis X55 is parallel to the joystick axis X51, being disposed radially with respect to the joystick axis X51.
  • the primary end 55 is for example in the form of a shaft, extending along the axis X55, received in a bearing formed by the base 52.
  • the rotation of the handle 51 causes the end 55 of connecting rod 54 according to a crank movement around axis X51 relative to housing 2.
  • the connecting rod 54 also includes a secondary end 56, through which the connecting rod 54 can mechanically cooperate with the slider 10, as explained below.
  • the secondary end 56 is advantageously in the form of a shaft, centered on a secondary axis X56 of the connecting rod 54.
  • the shaft here has a circular section centered on the axis X56.
  • End 56 is shown on the figure 7 and 8 , in addition to figures 1 to 6 .
  • Axes X55 and X56 are parallel to each other and to direction X1.
  • the secondary axis X56 is advantageously parallel to the hook axis X14.
  • the connecting rod 54 advantageously comprises two arms 58 and 59, to connect the ends 55 and 56, the arm 58 being disposed in the compartment 26 while the arm 59 is disposed in the compartment 27.
  • a single arm may be provided for connect ends 55 and 56.
  • the connecting rod 54 defines an axis of effort R54, which intersects the axes X55 and X56 while being perpendicular to these axes X55 and X56.
  • Connecting rod 54 is configured to transmit forces along this axis R54, via ends 55 and 56.
  • end 56 is positioned along slide axis Y10, or close to axis Y10. In the direction Y1, the end 56 can come into abutment against the slider 10, in particular against a drive surface 105 belonging to said slider, as visible on the figure 3 and 7 .
  • the drive surface 105 advantageously forms a bridge receiving the end shaft 56, which can then come into radial contact against the drive surface 105.
  • the bridge formed by the drive surface 105 is open in one direction. opposite to the Y1 direction.
  • the end 56 is radially captured between the hooks 14 and 15, in a direction opposite to the direction Y1, and in particular in a direction parallel to the axis R54, directed in the direction going from the end 55 to the end 56.
  • the hooks 14 and 15 are arranged on either side of the end 56, being on either side of the axis Y10, in particular by being in radial contact with the end 56 on either side of the axis R54.
  • the configuration of switching control 5 is subject to the position of slider 10 relative to housing 2 , via hooks 14 and 15 and surface 105.
  • the end 56 is radially supported, predetermined way, against a cam surface 143 belonging to the hook 14 and against a cam surface 153 belonging to the hook 15. More generally, the end 56 is received between the surfaces 105, 143 and 153, which surround it around the axis X56 in order to capture the end 56 between them.
  • the surfaces 143 and 153 face each other, being oblique relative to each other and being arranged on either side of the axis R54. In other words, the surfaces 143 and 153 are arranged in a V and accommodate the end 56 between them.
  • the surface 143 is turned in the opposite direction to the direction Z1 while the surface 153 is turned in the direction of the directions Y1 and Z1.
  • Surface 143 is formed between end 141 and end 142.
  • Surface 153 is formed between end 151 and end 152.
  • Surface 143 is advantageously tangent to the curved surface of the shaft forming the end. 56, at the place where these surfaces are in contact.
  • the surface 153 is advantageously tangent to the curved surface of the shaft forming the end 56, at the place where these surfaces are in contact.
  • cam surface 143 is positioned at an angle A143 relative to axis X55, around axis X56 and cam surface 153 is positioned at an angle A153 relative to axis X55, around axis X56.
  • Angle A143 is measured in a direct direction around axis X56, between axis X55 and the point of contact between end shaft 56 and surface 143, while angle A153 is measured in an indirect direction around the axis X56, between the axis X55 and the point of contact between the shaft of the end 56 and the surface 153.
  • these angles A143 and A153 are predetermined, in particular by the shape of hooks 14 and 15.
  • the angle ⁇ 143 and the angle ⁇ 153 are both at a respective predetermined value, between 90° and 180°. Provision can advantageously be made, as is the case in the figures, for the value of the angle A143 to be different from that of the angle A153.
  • the angle A153 is smaller than the angle A143, and is for example two thirds of the angle A143.
  • the angle A153 is between 92° and 100° while the angle A143 is between 130° and 160°. Because of this difference in value between the angles A143 and A153, it is necessary to provide a greater force to maintain the hook 14 in the locking position than to maintain the hook 15 in the locking position.
  • the slider 10 therefore maintains the control 5 in the closed configuration via the hooks 14 and 15 and the connecting rod 54, opposite the spring 57.
  • the connecting rod 54 is arranged so that, when the configuration of the switching control 5 is subject to the position of the slider 10 by placing the hooks 14 and 15 in the locking position, the slider 10 keeps the lever 51 in rotational abutment against the housing 2 in the closing orientation, via of the connecting rod 54, under the action of the forces F12 and F13, for their component in the direction Y1.
  • the control 5 since the control 5 is in abutment in the closed configuration, the control 5 maintains the slider 10 in the armed position against the forces F12 and F13, via the hooks 14 and 15 in the locking position and the end 56.
  • the slider 10 is therefore prevented from moving to the triggered position, the connecting rod 54 being interposed between the handle 51, in rotation stop in the closed orientation. This then maintains the contacts 33 and 43 in the conduction position.
  • connecting rod 54 no longer holds slider 10 in the cocked position. Then, the slider 10 is driven towards the triggered position under the action of the forces F12 and F13, via the contacts 33 and 43, while the contacts 33 and 43 are driven towards the isolated position. Under the action of the forces F12 and F13, the slider 10 also drives the control 5 towards the opening configuration, via the connecting rod 54, which is oriented so as to cause the lever 51 to pivot until opening direction.
  • Device 1 then reaches the configuration shown in the figure 3 and 4 , where the slider 10 is in the tripped position, the contacts 33 and 43 are in the isolated position and the control 5 is in the open configuration.
  • the R54 axis is arranged in the Z1 direction with respect to the X51 axis, as shown in the figure 3 and 4 .
  • the slider 10 when one of the two hooks 14 and 15 is in the unlocked position, the slider 10 is no longer retained by the secondary end 56 of the connecting rod 54 in the direction Y10, so that the slider 10 can be brought back from the armed position to the triggered position under the action of the forces F12 and F13, via the contacts 33 and 43, themselves brought back from their conduction position to their isolated position. In other words, the slider 10 can be moved from the armed position to the triggered position even if the switching control 5 is in the closed configuration, since one of the hooks 14 and 15 is in the unlocked position.
  • the protection device comprises a trigger 16, which is carried by the slider 10 and which is visible on the figure 1 , 3 , 5 , 7 and 8 .
  • the trigger 16 is carried by the part 101, in particular by an arm 106 of the part 101, being entirely arranged in the compartment 26.
  • the arms 103 and 106 are arranged on either side of a plane including axis Y10 and parallel to direction X1. In other words, the hook 14 extends along the arm 106.
  • the surface 105 is advantageously provided between the two arms 103 and 106, arranged in a fork.
  • the trigger 16 is pivotable with respect to the slider 10 about an axis X16, called “trigger axis", which here passes through the arm 106 and which is fixed with respect to the slider 10.
  • the axis X16 is parallel to the X14 axis and not merged with the X14 axis.
  • the trigger 16 is movable relative to the slider 10 between a holding position, shown on the figure 1 , 3 , 7 and 8 , and a release position, shown on the figure 5 .
  • the trigger 16 pivots in the opposite direction to the hook 14, when the hook passes from the locking position to the unlocking position.
  • the trigger 16 comprises a holding end 161 and an actuating end 162, arranged on either side of the axis X16.
  • the holding end 161 when the hook 14 is in the locking position and the trigger 16 is in the holding position, the holding end 161 cooperates mechanically with the hanging end 142 of the hook 14, so that the trigger 16 holds the hook 14 in the locked position.
  • the holding end 161 and the hooking end 142 have a complementary shape, which cause the trigger 16 to block the rotation of the hook 14 towards the unlocking position.
  • the end 142 when the hook 14 pivots from the locking position to the unlocking position, the end 142 describes a circular trajectory, the end 161 and the axis X16 of the trigger 16 being aligned on a tangent to this circular trajectory.
  • the end 161 has a radial surface 166, which bears in a radial direction, with respect to the axis X16, against the end 142.
  • the force with which the end 142 presses against the surface 166 essentially depends on the value of the angle A143, since, under the action of the springs 12 and 13, the end 56 of the connecting rod pushes the hook 14 to pivot towards its unlocked position, the hook 14 being nevertheless held in the locking position by the orthoradial bearing of the end 142 against the end 161.
  • the pivoting of the trigger 16 towards the holding position is limited to the holding position by orthoradial abutment of the end 161, with respect to the axis X16, against the hook 14.
  • the end 161 comprises for example an anti-rotation surface 167, which bears in an orthoradial direction, with respect to the axis X16, against the hook 14.
  • a trigger spring 163 is advantageously provided.
  • the spring 163 is arranged to apply a force to the trigger 16, preferably by bearing on the hook 14, tending to maintain the trigger 16 in the holding position when the hook 14 is in position locking and that the trigger 16 is in the holding position.
  • the spring 163 applies opposing forces on the end 142 and on the end 162.
  • the trigger 16 is held in the release position by the hook 14, when the hook 14 is itself held in the unlocked position by the end 56 of the connecting rod 54, then away from the surface 105.
  • the spring 163 is arranged to apply a force on the trigger 16 by bearing on the hook 14, tending to bring the hook 14 back into the locking position and to bring the trigger 16 back into holding position, when the hook 14 is no longer held in the unlocked position by the end 56, that is to say in particular when the end 56 is positioned against the surface 105. This situation can occur when the slider 10 is in the released position and the control 5 is in the open configuration.
  • the triggers 6 and 7 are configured to trigger a tilting of the hook 14 from the locking position to the unlocking position, when one of these triggers 6 and 7 is excited by its respective electrical fault, i.e. say a short circuit for trip unit 6 and an overload for trip unit 7, and that the slider is in the armed position.
  • the mobile core 62 when the trigger 6 is energized by the short-circuit, the mobile core 62 is moved from the rest position to the triggered position, visible on the figure 5 and then strikes end 162 of sear 16. In doing so, core 62 moves sear 16 from the hold position to the release position. As seen previously, the trigger 16 then authorizes the hook 14 to pass from the locking position to the unlocking position. As a result, under the action of the springs 12 and 13, the contacts 33 and 43 pass into the isolated position, the slider 10 passes into the triggered position, and the control 5 passes into the open configuration.
  • the release 7 When the release 7 is energized by the overload, it deforms, so as to drive the end 162 of the trigger 16, via a connecting rod 164 connecting the end 162 to one end of the bimetallic strip forming the release 7 In doing so, trigger 7 moves sear 16 from the hold position to the release position. As seen previously, the trigger 16 then authorizes the hook 14 to pass from the locking position to the unlocking position. As a result, under the action of the springs 12 and 13, the contacts 33 and 43 pass into the isolated position, the slider 10 passes into the triggered position, and the control 5 passes into the open configuration.
  • the triggers 6 and 7 can cause the displacement of the contacts 33 and 43 towards the isolation position with a very weak force.
  • the displacement of the contacts 33 and 43 towards the isolation position is carried out whatever the configuration of the control 5, since the slider 10 is released from the end 56 of the connecting rod 54 by placing the hook 14 in the unlocking position.
  • the control 5 is then returned to the open position under the sole action of its spring 57.
  • the protection device comprises a trigger 17, which is carried by the slider 10 and which is visible on the figure 2 , 4 , 6 , 7 and 8 .
  • the trigger 17 is carried by the part 102, in particular by an arm 107 of the part 102, being entirely arranged in the compartment 27.
  • the arms 104 and 107 are arranged on either side of a plane including axis Y10 and parallel to direction X1. Arm 107 and arm 106 are arranged on either side of the same plane.
  • the hook 15 extends along of the arm 107.
  • the surface 105 is advantageously provided between the two arms 104 and 107, arranged in a fork.
  • the trigger 17 is pivotable with respect to the slider 10 around an axis X17, called “trigger axis", which here passes through the arm 107 and which is fixed with respect to the slider 10.
  • the axis X17 is parallel to the X14 axis and not merged with the X14 axis.
  • the trigger 17 is movable relative to the slider 10 between a holding position, shown on the figure 2 , 4 , 7 and 8 , and a release position, shown on the figure 6 .
  • the trigger 17 pivots in the opposite direction to the hook 15, when the hook 15 passes from the locking position to the unlocking position.
  • the trigger 17 comprises a holding end 171 and an actuating end 172, arranged on either side of the axis X17.
  • the ends 171 and 172 are visible in particular on the figure 8 .
  • the holding end 171 cooperates mechanically with the hooked end 152 of the hook 15, so that the trigger 17 holds the hook 15 in the locked position.
  • the holding end 171 and the hooking end 152 have a complementary shape, which cause the trigger 17 to block the rotation of the hook 15 towards the unlocking position.
  • the end 152 describes a circular trajectory, the end 171 and the axis X17 of the trigger 17 being aligned on a tangent to this circular trajectory.
  • the end 171 has a radial surface 177, which bears in a radial direction, with respect to the axis X17, against the end 152.
  • the force with which the end 152 presses against the surface 177 essentially depends on the value of the angle A153, since, under the action of the springs 12 and 13, the end 56 of the connecting rod pushes the hook 15 to pivot towards its unlocked position, the hook 15 nevertheless being held in the locking position by orthoradial bearing of end 152 against end 171.
  • the pivoting of the trigger 17 towards the holding position is limited to the holding position by orthoradial abutment of the end 171, with respect to the axis X17, against the hook 15.
  • the end 171 comprises for example an anti-rotation surface 176, which bears in an orthoradial direction, with respect to the axis X17, against the hook 15.
  • the geometry of the end 171 is similar to that of the end 161 and that the geometry of the end 152 is similar to that of the end 142.
  • the ends 171 and 152 shown on the figure 8 also illustrate the shape and the way of mechanically cooperating ends 161 and 142, arranged symmetrically.
  • the end 171 is moved in the direction Y1 with respect to the end 152, so that the trigger 17 does not hold plus the hook 15 in the locking position. Then, the hook 15 can be brought into the unlocked position by cooperation with the end 56 of the connecting rod 54, under the action of a movement of the slider 10 towards the triggered position, under the action of the forces F12 and F13, the slider 10 thus driving the hook 15 in its movement, via the end 151.
  • To tilt the hook 15 by tilting the trigger 17 requires particularly little effort.
  • the force for tilting the trigger 17 is even less than that for tilting the trigger 16, due to the difference in value of the angles A143 and A153, since the bearing force of the hook 15 on the surface 176 is less. than the pressing force of the hook 14 on the surface 166. Because of this difference between the angles A143 and A153, provision can advantageously be made to actuate the trigger 17 with an actuator producing a low force, such as the trigger 8 , as explained below, by reserving the actuation of the trigger 16 to actuators producing a greater force, such as the trigger 6 and the trigger 7, as explained above.
  • a trigger spring 173 is provided.
  • the spring 173 is arranged to apply a force to the trigger 17, preferably by resting on the hook 15, tending to maintain the trigger 17 in the holding position when the hook 15 is in position locking and that the trigger 17 is in the holding position.
  • the spring 173 applies opposing forces on the end 152 and on the end 172.
  • the trigger 17 is held in the release position by the hook 15, when the hook 15 is itself held in the unlocking position by the end 56 of the connecting rod 54, then away from the surface 105.
  • the spring 173 is arranged to apply a force to the trigger 17 by bearing on the hook 15, tending to bring the hook 15 back into the locking position and to return the trigger 17 to the holding position, when the hook 15 is no longer held in the unlocking position by the end 56, that is to say in particular when the end 56 is positioned against the surface 105. This situation can occur when the slider 10 is in the released position and the control 5 is in the open configuration.
  • the device 1 further comprises a reset stand 18, visible on the figure 2 , 4 , 6 , 7 and 8 .
  • the stand 18 is carried by the slider 10, being movable relative to the slider between a reset position, shown on the figure 2 , 4 , 6 , 7 and 8 , and a stall position.
  • the crutch 18 is attached to the part 102, so as to be entirely received in the compartment 27.
  • the crutch 18 comprises an attachment end 181, through which the crutch 18 is attached to the slider 10, an actuation end 182, and an intermediate shoulder 183. More specifically, the crutch 18 is attached to the arm 107. pivots around the X17 axis.
  • the movement of the crutch 18 is independent of that of the trigger 17, except for their interactions mentioned below. Passing from the reset position to the release position, the end 182 is moved in the direction of the direction Z1, that is to say that the stand 18 is pivoted in the same direction as the trigger 17, when the trigger is rotated from the hold position to the release position.
  • the stand 18 is arranged along the trigger 17, with the end 181 at the height of the end 171 and the end 182 at the height of the end 172.
  • the trigger 17 is arranged in the direction Z1 with respect to the crutch 18.
  • the crutch 18 is configured to drive the trigger 17 from the holding position to the release position when the crutch 18 is itself driven from the reset position to the release position. In other words, when the crutch 18 is pivoted towards the stall position, the end 182 comes into orthoradial support against the end 172, so as to drive the trigger towards the release position by driving the end 172.
  • the box 2 comprises a reset pin 184, visible in particular on the figure 6 .
  • the pin 184 is carried by the partition 25 while being placed in the compartment 27.
  • the crutch 18 is driven in the same translation movement in the direction Y1.
  • the pin 184 is arranged so that the crutch 18 comes into contact with the pin 184, via the shoulder 183, which, under the action of the movement of the slider 10 towards the triggered position, brings the crutch 18 back into reset position. Indeed, the pin 184 slides along the stand 18, and drives the stand in rotation by mechanical cooperation with the shoulder 183.
  • the trigger 8 is configured to trigger a tilting of the hook 15 from the locking position to the unlocking position, when the trigger 8 is excited by its respective electrical fault, namely here a differential fault.
  • the relay 82 moves the movable rod 83 from the rest position, shown on the figure 2 , to the release position, where the rod 83 is moved in the direction Z1 relative to the housing 2. Then, the rod 83 reaches the actuating end 182 of the crutch 18, and drives the crutch 18 from the position of rearming to the off-hook position, via the end 182.
  • This has the effect that the handle 18 drives the trigger 17 from the holding position to the release position. In other words, it is preferentially via the stand 18 that the trigger 8 drives the trigger 17 from the hold position to the release position.
  • the hook 15 is no longer held in the locking position. As seen above, the hook 15 then moves into the unlocked position under the action of the springs 12 and 13, which causes the slider to move from the armed position to the triggered position, simultaneously with the movement of the contacts 33 and 43 from the conduction position to the isolation position.
  • the trigger 8 can cause the displacement of the contacts 33 and 43 towards the isolation position with a very weak force.
  • the trip unit 8 is energized by the differential fault, the movement of the contacts 33 and 43 towards the isolation position is executed whatever the configuration of the control 5, since the slider 10 is released from the end 56 of the connecting rod. 54 by placing the hook 15 in the unlocking position. The control 5 is then returned to the open position under the sole action of its spring 57.
  • the stand 18 Before the slider 10 reaches the triggered position, the stand 18 is returned to the reset position by cooperation with the pin 184, under the action of the movement of the slider 10 driven by the forces F12 and F13. Returning to the reset position, the end 182 of the strut drives the movable rod 83 from the release position to the rest position, in the direction opposite to the direction Z1.
  • the crutch 18 is configured to reset the relay 82 of the trigger 8 when the crutch 18 is driven from the off-hook position to the reset position.
  • the presence of the stand 18 is optional, and provision can be made for the trigger 8 to actuate the trigger 17 directly. , according to an operation similar to that adopted for the trigger 6 with the trigger 16.
  • the device 1 comprises an indicator 165, which is rotatable relative to the housing 2 around an axis parallel to the direction X1, between an initial position, visible on the figure 1 , and a reporting position, visible on the figure 5 .
  • a signaling end 169 belonging to the indicator 165 is visible from outside the casing 2, being placed in the recess of a window belonging to the casing 2, provided through the facade 21.
  • the signaling end 169 is not visible from outside the housing 2, being offset with respect to said window of the housing 2.
  • the trigger 16 is configured to move the indicator 165 to the signaling position , when the trigger 16 is moved from the hold position to the release position.
  • the trigger 16 comprises for example a radial protrusion 168, which drives in rotation a drive end 160 of the indicator 165, visible on the picture 3 , when the trigger 16 is itself pivoted to the release position while the slider 10 is in the cocked position.
  • the slider 10 is configured to bring the light 165 back to the initial position, when the slider 10 is moved from the triggered position to the armed position.
  • the light 165 thus makes it possible to signal to the user when one of the triggers 6 or 7 has been excited by an electrical fault, the light 165 being reset once the user has reset the device 1 by passing the command 5 from the opening configuration to the closing configuration.
  • a light 175 is provided with a signaling end 179, which is similar to the light 165 and its signaling end 169.
  • the light 175 is actuated, independently of the light 165, by the trigger 17 or the stand 18 , to a signaling position, in order to signal the user when the trip device 8 has been energized by a differential fault.
  • Indicator 175 is returned to an initial position by slider 10 when control 5 is returned to the closed configuration, once the fault has disappeared.
  • the device 1 comprises an indicator 110, which is rotatable relative to the housing 2 around an axis parallel to the direction X1, between a position signaling the closing, visible on the picture 2 , and a position signaling the opening, visible on the figure 4 and 6 .
  • the signaling end 111 belonging to the indicator 110 is visible from outside the casing 2, being placed in the recess of a window belonging to the casing 2, made through the facade 21.
  • a different part of the signaling end 111 may be visible through the window, or fall in front of cursors, to indicate whether the contacts 33 and 43 are in the isolated or conducting position.
  • the position of the indicator 110 is subject to the position of the slider 10, preferably by direct driving of the indicator 110 by the part 102 of the slider 10.
  • the position of the indicator 110 thus allows the user to know the position of the slider 10, and therefore contacts 33 and 43, in order to detect a possible failure of device 1, in particular if the configuration of control 5 does not correspond to the position that contacts 33 and 43 should take.
  • the device 1 thanks to its internal mechanism, makes it easy to provide one or more mechanical indicator lights, particularly compact, to signal the state of the mechanism to the user, without having to open the case 2.
  • the device 1 is configured so that, when no electrical fault occurs, the contacts 33 and 43 can be switched between their isolation position and their conduction position by actuating the control 5 between the opening configurations and closing, and so that, when an electrical fault occurs while the contacts 33 and 43 are in the conduction position, the contacts are switched to the isolation position, even in the event that the control 5 is maintained in closing configuration.
  • Device 1 is suitable for several types of trigger, in particular trigger 8 which needs to be reset and whose force produced by relay 82 is particularly low.
  • the device 1 is particularly compact and makes it easy to embed, in the same box 2, three triggers 6, 7 and 8 and two conduction paths 3 and 4 electrically isolated from each other.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
EP22174234.9A 2021-05-20 2022-05-19 Elektrische schutzvorrichtung Active EP4092711B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2105285A FR3123140B1 (fr) 2021-05-20 2021-05-20 Dispositif de protection électrique

Publications (3)

Publication Number Publication Date
EP4092711A1 true EP4092711A1 (de) 2022-11-23
EP4092711B1 EP4092711B1 (de) 2024-01-03
EP4092711C0 EP4092711C0 (de) 2024-01-03

Family

ID=76730797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22174234.9A Active EP4092711B1 (de) 2021-05-20 2022-05-19 Elektrische schutzvorrichtung

Country Status (5)

Country Link
EP (1) EP4092711B1 (de)
CN (1) CN115376845A (de)
AU (1) AU2022203451A1 (de)
ES (1) ES2975527T3 (de)
FR (1) FR3123140B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329392A1 (de) * 2002-07-02 2004-01-15 Efen Gmbh Hauptsicherungs-Schaltautomat
EP1884976A1 (de) 2006-08-01 2008-02-06 Siemens Aktiengesellschaft Schaltvorrichtung mit Betätigungselement
DE102010019033A1 (de) * 2010-05-03 2011-11-03 Abb Ag Elektrisches Installationsschaltgerät

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329392A1 (de) * 2002-07-02 2004-01-15 Efen Gmbh Hauptsicherungs-Schaltautomat
EP1884976A1 (de) 2006-08-01 2008-02-06 Siemens Aktiengesellschaft Schaltvorrichtung mit Betätigungselement
DE102010019033A1 (de) * 2010-05-03 2011-11-03 Abb Ag Elektrisches Installationsschaltgerät

Also Published As

Publication number Publication date
CN115376845A (zh) 2022-11-22
FR3123140A1 (fr) 2022-11-25
FR3123140B1 (fr) 2023-05-26
EP4092711B1 (de) 2024-01-03
EP4092711C0 (de) 2024-01-03
AU2022203451A1 (en) 2022-12-08
ES2975527T3 (es) 2024-07-08

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