WO2020230684A1 - Dispositif de déclenchement de surintensité, et disjoncteur dans lequel un dispositif de déclenchement de surintensité est utilisé - Google Patents

Dispositif de déclenchement de surintensité, et disjoncteur dans lequel un dispositif de déclenchement de surintensité est utilisé Download PDF

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Publication number
WO2020230684A1
WO2020230684A1 PCT/JP2020/018509 JP2020018509W WO2020230684A1 WO 2020230684 A1 WO2020230684 A1 WO 2020230684A1 JP 2020018509 W JP2020018509 W JP 2020018509W WO 2020230684 A1 WO2020230684 A1 WO 2020230684A1
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WO
WIPO (PCT)
Prior art keywords
fixed
iron core
movable
conductor
trip device
Prior art date
Application number
PCT/JP2020/018509
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English (en)
Japanese (ja)
Inventor
央 佐々木
康宏 神納
雄大 相良
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to EP20805181.3A priority Critical patent/EP3971933B1/fr
Priority to JP2021519389A priority patent/JP7109664B2/ja
Publication of WO2020230684A1 publication Critical patent/WO2020230684A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • H01H50/22—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed
    • H01H2050/225—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed with yoke and armature formed by identical stacked laminates, e.g. punched in one and the same tool
    • 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
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element

Definitions

  • the present application relates to an overcurrent trip device and a circuit breaker using the overcurrent trip device.
  • the overcurrent trip device is a device built into the circuit breaker that detects the overcurrent flowing in the main circuit of the circuit breaker and operates the trip mechanism of the circuit breaker in the closed pole state.
  • Specific overcurrent tripping devices include, for example, an electromagnet for detecting the accident current flowing in the main circuit, an output shaft for transmitting the driving force output from the electromagnet to the tripping mechanism of the circuit breaker, and the like.
  • the current scale value is changed by changing the spring load by manipulating the return spring to set the current scale value (current specified value when the trip operation is started) of the tripping device and the compression amount of the return spring. It is equipped with a scale device for adjustment.
  • the operation of the overcurrent trip device is that when an overcurrent flows through the conductor penetrating the center of the electromagnet, a magnetic flux is generated in the electromagnet, and the movable iron core constituting the electromagnet is attracted upward and connected to the movable iron core. It is disclosed that the shaft moves upward and drives the holding latch to separate the holding force that brings the circuit breaker to the closed pole state from the movable contact (see, for example, Patent Document 1). By this disconnection, the circuit breaker shifts to the open pole state.
  • the magnetomotive force of the overcurrent trip device also transiently increases during the occurrence of the fault current, but the electromagnets that make up the overcurrent trip device When is magnetically saturated, the amount of increase in the tripping driving force is reduced. Therefore, in order to shorten the tripping operation time, an iron core structure that is less likely to be magnetically saturated with respect to the accident current may be used.
  • Patent Document 1 it is possible to detect the overcurrent flowing in the main circuit of the circuit breaker and operate the tripping mechanism of the circuit breaker in the closed pole state.
  • the mechanism provided in the overcurrent trip device for operating the trip mechanism is provided outside the electromagnet, there is a problem that the overcurrent trip device becomes large.
  • the volume of the iron core which is an electromagnet can be increased to reduce the magnetic saturation, but the iron core is increased.
  • the outer shape and mass of the overcurrent trip device increase.
  • the present application has been made to solve the above-mentioned problems, and obtains a miniaturized overcurrent trip device that shortens the tripping operation time with respect to an accident current, and a circuit breaker using the same.
  • the purpose is.
  • the overcurrent trip device disclosed in the present application is an overcurrent trip device that detects an overcurrent flowing in the main circuit of a circuit breaker and operates a trip mechanism of the circuit breaker in a closed pole state.
  • the conductor connected to the main circuit and the fixed iron core that surrounds the conductor along the magnetic field generated around the conductor by energization and partially opened so as to cut the magnetic field diagonally, and fixed at the open position of the fixed iron core.
  • a movable iron core that has a magnetic gap between it and the conductor and is movably arranged in a direction in which the magnetic gap is contracted by an electromagnetic force when an overcurrent flows through a conductor faces an opened portion and an opened portion.
  • the fixed core is equipped with a lever that is connected to a spring provided outside the fixed core and rotates around a fulcrum provided between the connecting portions to transmit the load force of the spring to the movable core. It has a gap perpendicular to the extending direction of the conductor, and in this gap, a plate-shaped fixed iron core guide provided with a groove along the extending direction of the rod is fixed, and a lever is arranged to arrange a movable iron core. Has a gap perpendicular to the extending direction of the conductor, and a plate-shaped movable iron core guide that is partially sandwiched in the groove and slides in the extending direction of the rod is fixed in this gap. ..
  • the tripping operation time is shortened with respect to the accident current, and miniaturization can be realized.
  • FIG. 5 is a front sectional view showing a schematic configuration of a circuit breaker using the overcurrent trip device according to the third embodiment.
  • FIG. 1 is a front view of the overcurrent trip device 100
  • FIG. 2 is a plan view of the overcurrent trip device 100
  • FIG. 3 is a perspective view showing a part of the overcurrent trip device 100
  • FIG. 4 is an overcurrent trip. It is a perspective view of the apparatus 100.
  • the overcurrent trip device 100 is incorporated in a circuit breaker 200 described later, and when an overcurrent flows through the main circuit of the circuit breaker 200, the rod 5 fixed to the movable iron core 2 is moved to be in a closed pole state. It is a device that operates the tripping mechanism of the circuit breaker 200.
  • the configuration of the overcurrent trip device 100 will be described.
  • the overcurrent trip device 100 surrounds the two conductors 3 connected to the main circuit (not shown) of the circuit breaker 200, and the conductor 3 along the magnetic field generated around the conductor 3 by energization, and obliquely surrounds the conductor 3.
  • a magnetic gap 4 is provided between the fixed iron core 1 which is partially opened so as to cut the conductor and the fixed iron core 1 at the opened position of the fixed iron core 1, and electromagnetic waves when an overcurrent flows through the conductor 3.
  • a movable iron core 2 is provided so as to be movable in a direction in which the magnetic gap 4 is contracted by a force.
  • a magnetic circuit is formed by the fixed iron core 1 and the movable iron core 2.
  • the fixed iron core 1 is a laminated iron core, and includes a laminated magnetic steel plate 1b.
  • the four fixing iron core pins 1a penetrate each of the laminated magnetic steel plates 1b in the laminating direction to fix the magnetic steel plates 1b together.
  • the movable iron core 2 is also a laminated iron core, includes a laminated magnetic steel plate 2b, and two movable iron core pins 2a penetrate in the laminating direction of the laminated magnetic steel plates 2b to fix the magnetic steel plates 2b together.
  • the number of the fixed iron core pin 1a and the movable iron core pin 2a is not limited to this number as long as the magnetic steel plate 1b and the magnetic steel plate 2b can be fixed.
  • the fixed core 1 and the movable core 2 are composed of laminated iron cores in order to suppress eddy currents, but the structure is not limited to the laminated cores, and may be composed of block ferromagnets such as iron-based materials. I do not care.
  • the conductor 3 is made of, for example, copper.
  • the main circuit current of the circuit breaker 200 flows through the conductor 3, and an electromagnetic force is induced in the magnetic circuit.
  • FIG. 1 shows an example in which two conductors 3 are arranged and a rod 5 described later moves between them, but the present invention is not limited to this, and the rod 5 may be arranged next to one conductor 3. ..
  • the rod 5 is rod-shaped and movable in the axial direction extending in the axial direction, and is provided so as to penetrate the inside of the fixed core 1 through the opening portion of the fixed core 1 and the portion of the fixed core 1 facing the opened portion.
  • the rod 5 is linked to a holding latch (not shown) connected to a trip mechanism provided in the circuit breaker 200 at an end projecting to the outside of the fixed iron core 1.
  • the rod 5 is fixed to the movable iron core 2 by fitting, for example, with the movable iron core 2.
  • the rod 5 is made of a non-ferromagnetic material such as stainless steel, brass or aluminum. This is because it does not affect the magnetic circuit configured by the overcurrent trip device 100.
  • the fixed iron core 1 has a gap perpendicular to the extending direction of the conductor 3, and a plate-shaped fixed core guide 6 is fixed in this gap.
  • the fixed iron core guide 6 is sandwiched between the magnetic steel plates 1b and fixed.
  • the fixed iron core guide 6 is laminated with a plurality of plates, and includes two outer layers 6a and one inner layer 6b.
  • the fixed core guide 6 is fixed together with the magnetic steel plate 1b by the fixed core pin 1a.
  • the rod 5 is arranged in the space provided between the left and right fixed iron core guides 6.
  • a groove portion 6c is provided in the fixed iron core guide 6 along the extending direction of the rod 5.
  • the groove portion 6c has a side wall formed by the outer layer 6a and a bottom portion formed by the inner layer 6b.
  • the movable iron core 2 has a gap perpendicular to the extending direction of the conductor 3, and a part of the movable iron core 2 is sandwiched between the grooves 6c and slides in the extending direction of the rod 5.
  • the plate-shaped movable iron core guide 7 is fixed.
  • the groove portion 6c limits the movable direction of the movable iron core 2.
  • the movable iron core guide 7 is fixed together with the magnetic steel plate 2b by the movable iron core pin 2a.
  • the fixed core guide 6 and the movable core guide 7 are preferably made of a paramagnetic or diamagnetic material other than a ferromagnetic material such as stainless steel, brass, and aluminum. This is because it does not affect the magnetic circuit configured by the overcurrent trip device 100.
  • the lever 8 is connected to the rod 5 at one end, is connected to a spring 9 provided outside the fixed iron core 1 at the other end, and rotates about a fulcrum provided between the respective connecting portions of the spring 9.
  • the load force is transmitted to the movable iron core 2 via the rod 5.
  • the lever 8 is provided inside the fixed iron core guide 6 in the extending direction of the conductor 3 in the gap of the fixed iron core 1 and sandwiched between the two outer layers 6a.
  • the lever 8 is fixed together with the fixed core 1 by a fixed core pin 1a penetrating the fixed core 1.
  • the lever 8 rotates with a portion fixed by the fixed iron core pin 1a as a fulcrum.
  • the lever 8 is fixed to the spring 9 by a spring seat 10 having a function of a spring seat.
  • the lever 8 is provided so as to be sandwiched between the fixed iron core guides 6, it is possible to prevent the magnetic steel plate 1b from being damaged by the rotation of the lever 8.
  • the lever 8 is made of a non-ferromagnetic material such as stainless steel, brass or aluminum.
  • the overcurrent trip device 100 includes a stage 11 and a spring adjusting screw 12 in addition to the spring 9 outside the fixed iron core 1.
  • the stage 11 is in contact with the spring 9 on one side, and the spring adjusting screw 12 arranged on the other side is fitted through a screw hole provided through the central portion. Since the side surface 11a of the stage 11 faces the wall surface of the spring guide 13 inside the spring guide 13 shown in FIG. 4, the rotation of the stage 11 about the axis of the screw hole is suppressed.
  • the stage 11 moves along the wall surface of the spring guide 13 in the axial direction of the screw hole. Since the spring 9 expands and contracts due to the movement of the stage 11, the load force of the spring 9 changes.
  • the movable core 2 is urged by a spring 9 in a direction away from the fixed core 1, and the strength of urging the movable core 2 changes as the stage 11 moves.
  • the urging strength of the movable iron core 2 determines the current scale value (predetermined current specified value when the tripping operation is started) of the overcurrent trip device 100, and this can be adjusted. By doing so, it is possible to set a plurality of current scale values.
  • the spring 9 is set so that its initial load is equal to the electromagnetic driving force at the current scale value of the overcurrent trip device 100.
  • the spring guide 13 is provided so as to surround the side surfaces of the spring 9 and the stage 11.
  • the spring guide 13 suppresses the bending of the spring 9 other than the moving direction of the stage 11, and suppresses the rotation of the stage 11.
  • the spring guide 13 includes a scale 14 on the outside. By providing the scale 14, the position of the stage 11 can be quantitatively grasped. By quantitatively grasping the position of the stage 11, the correlation between the position of the stage 11 and the current scale value can be recorded in advance, and the overcurrent trip device 100 is not operated by passing a current through the conductor 3. The current scale value can be changed according to the recorded current scale value.
  • FIG. 5 is a front partial cross-sectional view showing a state before the pulling operation of the overcurrent trip device 100 according to the first embodiment
  • FIG. 6 is a front partial cross section showing a state after the pulling operation of the overcurrent trip device 100. It is a figure. 5 and 6 are front partial cross-sectional views taken along the alternate long and short dash line AA of FIG.
  • the holding latch 51 is connected to a tripping mechanism (not shown) included in the circuit breaker 200, is in contact with the other end 5a of the rod 5 on one side, and is rotatably fixed on the other side.
  • the movable iron core 2 Before the tripping operation in which no accident current is flowing through the conductor 3, the movable iron core 2 is subjected to a load force from the spring 9, and as shown in FIG. 5, the initial position facing the fixed core 1 so as to have a magnetic gap 4. Placed in.
  • the magnetic gap 4 of the movable iron core 2 becomes 0 from the initial position as shown in FIG. Move to the pull-out position.
  • the arrows shown in the fixed core 1 and the movable core 2 in the figure indicate the magnetic circuit ⁇ , and the conductor 3 indicates the accident current I.
  • the rod 5 moves together with the movable iron core 2, and the other end 5a rotates the holding latch 51 to release the latch.
  • the tripping mechanism of the circuit breaker 200 connected to the holding latch 51 is activated to open the circuit breaker 200.
  • the fixed iron core guide 6 shows an example in which a plurality of plates are provided, but the present invention is not limited to this. As shown in FIG. 7, a fixed iron core guide 6 obtained by processing one plate by, for example, cutting may be used.
  • lever 8 is installed sandwiched between the two outer layers 6a
  • the configuration in which the lever 8 is installed is not limited to this. Absent.
  • the lever 8 having a thicker thickness may be sandwiched and fixed by the magnetic steel plate 1b without providing the outer layer 6a at the place where the lever 8 is arranged.
  • the thickness of the lever 8 can be increased to increase the rigidity of the lever 8 and the load force of the spring 9 can be transmitted to the movable iron core 2.
  • the lever 8 is fixed by the fixed iron core pin 1a at the fulcrum driven by rotation, but the configuration of the fulcrum for fixing the lever 8 is not limited to this. Absent. Instead of fixing the lever 8 with the fixed iron core pin 1a, a fulcrum of the lever 8 may be provided outside the fixed iron core 1 and the load force of the spring 9 may be transmitted to the movable iron core 2 by using the principle of leverage.
  • the overcurrent trip device 100 is provided with the rod 5 and the lever 8 involved in the operation of the trip mechanism inside the fixed iron core 1, the outer shape of the overcurrent trip device 100 is reduced and the overcurrent trip device 100 is pulled. The size of the removal device 100 can be reduced. Further, since the rod 5 and the lever 8 which are the movable parts are provided inside the fixed iron core 1 to reduce the size of the movable part and reduce the mass of the movable part, the operation of the movable part when an accident current flows through the conductor 3 The speed is increased, and the tripping operation time can be shortened against the accident current.
  • the thickness of the lever 8 is arranged to be the thickness of the inner layer 6b, so that the overcurrent trip device 100 can be downsized. be able to.
  • the fixed iron core guides 6 are laminated and provided to form the groove portion 6c, the groove portion 6c is easily formed, and the manufacturing process of the overcurrent trip device 100 can be simplified.
  • the fixed iron core guide 6 and the movable iron core guide 7 are made of a paramagnetic material or a diamagnetic material, the magnetic circuit configured by the overcurrent trip device 100 is not affected, and the accident current is not affected. The tripping operation time can be shortened.
  • the lever 8 when the lever 8 is fixed by the fixed iron core pin 1a, the lever 8 can be fixed inside the fixed iron core 1 without adding any component parts, so that the overcurrent trip device 100 is lightened and the overcurrent trip device 100 is reduced in weight.
  • the manufacturing process of 100 can be simplified.
  • FIG. 8 is a front partial cross-sectional view of the overcurrent trip device 100.
  • the region shown in cross section is the same as in FIG.
  • the position of the stage 11 provided in the overcurrent trip device 100 shown in the first embodiment is different from that of the first embodiment, and the rod 5 provides a trip mechanism. It is configured to be provided on the operating side.
  • the direction in which the rod 5 operates the tripping mechanism is indicated by an arrow in FIG.
  • the movable iron core 2 is provided so as to face the fixed iron core 1 on the side where the rod 5 operates the tripping mechanism. Therefore, the rod 5 penetrates the movable iron core 2 and is fixed to the movable iron core 2.
  • the lever 8 is fixed by a fixed iron core pin 1a provided at the lower right of the fixed iron core 1. Therefore, the stage 11 is arranged on the side where the rod 5 operates the tripping mechanism.
  • the spring 9 generates a load force of the spring 9 in the direction in which the rod 5 operates the tripping mechanism, and transmits the load force to the lever 8. Similar to the first embodiment, it is possible to change the current scale value by moving the stage 11 by using the spring adjusting screw (not shown).
  • the position of the stage 11 is set to the side where the trip mechanism is operated, and the position where the operator operates the spring adjusting screw is different from that of the first embodiment. It is possible to increase the choices of places where the overcurrent trip device 100 can be installed inside the device.
  • FIG. 9 is a front sectional view showing a schematic configuration of a circuit breaker 200 using the overcurrent trip device 100.
  • the overcurrent trip device 100 shown in the first embodiment or the second embodiment is incorporated in the circuit breaker 200, and the overcurrent trip device 100 operates the trip mechanism of the circuit breaker 200 in the closed pole state. ..
  • FIG. 8 shows a circuit breaker 200 inserted in the fixed frame 70.
  • the upper conductor 53 and the lower conductor 54 are arranged below the arc extinguishing chamber 52 in which the arc extinguishing space is formed when the current is applied.
  • a fixed-side main contact 55 is connected to the upper conductor 53.
  • One lower conductor 54 is connected to the movable conductor 57 via the flexible conductor 56, and the movable side main contact 58 is provided at a position opposite to the fixed side main contact 55 at the end of the movable conductor 57.
  • the movable conductor 57 rotates about the rotation shaft 59, and the opening pole is performed by the opening pole spring 60 and the closing pole is performed by the actuator 61.
  • the overcurrent trip device 100 is arranged in the middle of the lower conductor 54.
  • a lower conductor 54 is connected to the conductor 3 of the overcurrent trip device 100, and a main circuit current flows. Further, the overcurrent trip device 100 is engaged with the latch 64 by the latch drive link 63.
  • the latch drive link 63 shown by the broken line in FIG. 8 corresponds to a portion that transmits the movement of the rod 5 of the overcurrent trip device 100 described above to the holding latch 51, and is based on this operation. This means that the latch 64 is driven.
  • the overcurrent trip device 100 arranged in the lower conductor 54 operates by detecting the overcurrent, the operation is transmitted to the latch 64 by the latch drive link 63, and the latch 64 is the latch shaft.
  • the pole opening operation is performed by rotating clockwise around 65, disengagement with the movable conductor 57, and rotating the movable conductor 57 clockwise around the rotation shaft 59.
  • the fixed side main contact 55 and the movable side main contact 58 are housed inside the arc extinguishing chamber 52.
  • a fixed-side arc contactor 66 and a movable-side arc contactor 67 are arranged above the fixed-side main contact 55 and the movable-side main contact 58, and an arc is generated at the time of interruption.
  • the fixed-side arc contactor 66 and the movable-side arc contactor 67 are opened with a delay after the fixed-side main contact 55 and the movable-side main contact 58 are opened in the opening operation, so that the arc is set to the fixed-side main contact.
  • the fixed side arc horn 68 and the movable side arc horn 69 are arranged.
  • the overcurrent trip device 100 detects the current flowing through the main circuit of the circuit breaker 200, and the operation of the overcurrent trip device 100 disengages the movable conductor 57 and the latch 64 to open the circuit breaker 200. It does not matter as long as it is configured to allow.
  • the circuit breaker 200 incorporates the overcurrent trip device 100 shown in the first embodiment or the second embodiment, the overcurrent pulling when an accident current flows through the lower conductor 54.
  • the operation speed of the movable part of the removal device 100 is increased, and the removal operation time of the circuit breaker 200 can be shortened with respect to the accident current.
  • the overcurrent trip device 100 is miniaturized, the installation space of the overcurrent trip device 100 in the circuit breaker 200 can be reduced, and the circuit breaker 200 can be miniaturized.
  • the present application also describes various exemplary embodiments and examples, although the various features, embodiments, and functions described in one or more embodiments are those of a particular embodiment. It is not limited to application, but can be applied to embodiments alone or in various combinations. Therefore, innumerable variations not illustrated are envisioned within the scope of the techniques disclosed herein. For example, it is assumed that at least one component is modified, added or omitted, and further, at least one component is extracted and combined with the components of other embodiments.

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

Abstract

La présente invention comprend : un conducteur ; un noyau de fer fixe et partiellement ouvert (1) qui entoure le conducteur ; un noyau de fer mobile (2) qui comprend un entrefer magnétique et est disposé de façon mobile à la position où le noyau de fer fixe (1) est ouvert ; une tige (5) de forme allongée qui pénètre dans le noyau de fer fixe (1), est reliée à un mécanisme de déclenchement au niveau d'une partie d'extrémité qui fait saillie vers l'extérieur, et est fixée au noyau de fer mobile (2) ; et un levier (8) qui est relié à une extrémité à la tige (5) et est relié à l'autre extrémité à un ressort (9) disposé à l'extérieur du noyau de fer fixe (1), le levier (8) tournant autour d'un point d'appui et transmettant la force de charge du ressort (9) au noyau de fer mobile (2). Le noyau de fer fixe (1) comporte un espace qui est perpendiculaire à la direction dans laquelle s'étend le conducteur, dans lequel un guide de noyau de fer fixe en forme de plaque (6) comportant une partie rainurée est fixé et le levier (8) est disposé. Le noyau de fer mobile (2) comporte un espace perpendiculaire à la direction dans laquelle s'étend le conducteur, et un guide de noyau de fer mobile en forme de plaque (7) qui coulisse partiellement en sandwich dans la partie rainurée est fixé dans l'espace.
PCT/JP2020/018509 2019-05-16 2020-05-07 Dispositif de déclenchement de surintensité, et disjoncteur dans lequel un dispositif de déclenchement de surintensité est utilisé WO2020230684A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20805181.3A EP3971933B1 (fr) 2019-05-16 2020-05-07 Dispositif de déclenchement de surintensité, et disjoncteur dans lequel un dispositif de déclenchement de surintensité est utilisé
JP2021519389A JP7109664B2 (ja) 2019-05-16 2020-05-07 過電流引外し装置およびこれを用いた回路遮断器

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Application Number Priority Date Filing Date Title
JP2019-092701 2019-05-16
JP2019092701 2019-05-16

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WO2020230684A1 true WO2020230684A1 (fr) 2020-11-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113782353A (zh) * 2021-09-15 2021-12-10 福州大学 一种cps新型旋转式电磁操动机构及其工作方法
EP4266343A4 (fr) * 2020-12-17 2024-03-06 Mitsubishi Electric Corporation Dispositif de déclenchement par surintensité et disjoncteur l'utilisant

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EP2431992A1 (fr) 2010-09-20 2012-03-21 Sécheron SA Mécanisme de déclenchement pour un disjoncteur
WO2016204104A1 (fr) * 2015-06-19 2016-12-22 三菱電機株式会社 Dispositif de déclenchement par surintensité et disjoncteur l'utilisant
WO2019038813A1 (fr) * 2017-08-21 2019-02-28 三菱電機株式会社 Dispositif d'actionnement électromagnétique et disjoncteur

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Publication number Priority date Publication date Assignee Title
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CN113782353A (zh) * 2021-09-15 2021-12-10 福州大学 一种cps新型旋转式电磁操动机构及其工作方法

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EP3971933A4 (fr) 2022-06-22
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EP3971933B1 (fr) 2023-04-12
JP7109664B2 (ja) 2022-07-29

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