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EP4068322B1 - Appareil de commutation pourvu d'un dispositif interrupteur à déclenchement brusque - Google Patents

Appareil de commutation pourvu d'un dispositif interrupteur à déclenchement brusque Download PDF

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Publication number
EP4068322B1
EP4068322B1 EP21166307.5A EP21166307A EP4068322B1 EP 4068322 B1 EP4068322 B1 EP 4068322B1 EP 21166307 A EP21166307 A EP 21166307A EP 4068322 B1 EP4068322 B1 EP 4068322B1
Authority
EP
European Patent Office
Prior art keywords
switching device
lever
contact
pivot lever
connecting means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21166307.5A
Other languages
German (de)
English (en)
Other versions
EP4068322A1 (fr
Inventor
Jürgen Mader
Nicolas Müller
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.)
Jean Mueller Elektrotechnische Fabrik GmbH
Original Assignee
Jean Mueller Elektrotechnische Fabrik GmbH
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 Jean Mueller Elektrotechnische Fabrik GmbH filed Critical Jean Mueller Elektrotechnische Fabrik GmbH
Priority to PL21166307.5T priority Critical patent/PL4068322T3/pl
Priority to EP21166307.5A priority patent/EP4068322B1/fr
Publication of EP4068322A1 publication Critical patent/EP4068322A1/fr
Application granted granted Critical
Publication of EP4068322B1 publication Critical patent/EP4068322B1/fr
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
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/635—Contacts actuated by rectilinearly-movable member linked to operating part, e.g. by pin and slot
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/12—Adaptation for built-in fuse
    • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch
    • 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
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse

Definitions

  • Switching devices in particular electrical load switches, especially those with fuses, are used, for example, in the industrial and power plant sectors both as busbar feeder switches and as outgoing switches for switching highly inductive loads (e.g. motors), including overloads.
  • highly inductive loads e.g. motors
  • the switching device according to the invention is in particular a switching device for use on a busbar system, the switching device covering a current range in which cylindrical fuses are used, for example D0 fuses.
  • the invention Switching device can be used, for example, as a back-up fuse for modular devices, as a protective device for drives in production facilities and/or in photovoltaic installations.
  • the switching device In order to achieve a particularly high level of operational reliability of the switching device, it is advantageous to implement operator-independent switching on and/or off, in particular in order to make the switching device easy to use by laypeople.
  • the requirement is therefore to design the switching device in such a way that the switching device is switched on and/or off independently of the operator, meaning that the actual switching process, in which the switching contact is transferred from the interrupt position to the contact position and/or vice versa, is no longer carried out by the operator can be interrupted.
  • the switching device is designed in particular as a multi-pole switching device for use on busbar systems.
  • the switching device has a plurality of fuse holders, in particular for cylindrical fuses, with the fuse holders preferably being arranged in a row transverse to the busbar system and in the longitudinal direction of the switching device.
  • the switching device is in particular a switch disconnector for a busbar system.
  • the switching device has at least one switching contact, wherein the at least one switching contact can be moved from a contact position to an interruption position and vice versa.
  • the switching device has several Switching contacts, whereby the respective switching contact is assigned to one of the fuse receptacles, preferably the plurality of switching contacts can be actuated via a common slide which is slidably mounted in the housing.
  • the switching device has an actuable snap-action switching mechanism for transferring the at least one switching contact from the contact position to the interruption position and vice versa.
  • the jump switch mechanism has a joint arrangement with a first pivot lever pivotably mounted about a first, preferably housing-fixed, pivot axis and with a second pivot lever pivotably mounted about a second, preferably housing-fixed, pivot axis.
  • the first pivoting lever and the second pivoting lever are articulated to one another via a connecting means, the connecting means being displaceably mounted in the first pivoting lever while deforming a restoring means.
  • the restoring means thus supports pivoting of the first pivoting lever and thus switching of the switching device once the tipping point is exceeded.
  • the reset means serves as a kind of energy storage device and thereby ensures reliable switching when the tipping point is exceeded.
  • the force acting on the switching contact which is transmitted by the second pivoting lever, must also be particularly large in order to ensure safe switching of the switching contact. Due to the inventive design of the jump switch mechanism with a connecting means mounted displaceably in the first pivot lever and displaceably in the second pivot lever for the articulated connection of the two pivot levers, particularly large pivot angle ranges for the first and/or the second pivot lever can still be achieved with a small space requirement for the jump switch mechanism. so that the process of shifting the rear derailleur can be tuned particularly finely and precisely.
  • the connecting means is displaceably mounted both in the first pivoting lever and in the second pivoting lever, the angular position of the two pivoting levers relative to one another can be varied over large ranges during the process of switching the switching device, in particular also the length of the respective lever arm of the first pivoting lever and / or the second pivot lever, thus the distance of the connecting means from the first pivot axis or from the second pivot axis can be adjusted within wide ranges.
  • the displacement of the connecting means in the first pivoting lever and in the second pivoting lever can be influenced in order to adapt the switching behavior of the jump switch, since the position of the connecting means in the first pivoting lever and in the second pivoting lever is determined by means of the guide structure during the process of pivoting the first Pivoting lever can be adjusted.
  • This allows the forces to be applied during the switching process or the force applied by the rear derailleur to be adjusted particularly easily and precisely.
  • the concept can be transferred to a wide variety of jump switches and can be used very universally. In particular, complex designs can be used or redesigning the swivel levers can be avoided because the switching behavior can be adjusted using the guide structure. This saves development costs and costs for producing prototypes.
  • Such bouncing can therefore be described as mechanically caused.
  • an energized switching device i.e. a switching device to which electrical current is applied
  • the electromagnetic fields that then occur can contribute to the fact that an electromagnetic force that drives the contact elements apart or together acts on the contact elements. This can then also lead to bouncing of the switching contact, in particular the contact elements of the switching contact, and/or increase mechanically caused bouncing.
  • Such bouncing caused by electromagnetic forces can therefore be described as electromagnetically caused.
  • the guide structure can also serve to slow down the movement of the jump switch by interacting with the connecting means after the tipping point has been exceeded, in order in this way to brake the movement of the jump switch and thus of the switching contact, in particular one of the contact elements, which is advantageous affects the service life of the snap-action switch and/or the switching contact and the safety when switching.
  • the use of such a snap-action switch in a switching device which is designed as a switch disconnector for a 60 mm busbar system, has proven to be particularly advantageous, since the available installation space for a snap-action switch is particularly small in such a switching device. It has been shown that by using a switching device designed according to the invention as a switching device for a 60 mm busbar system, the angle gain for the pivoting angle of the second pivoting lever is between 10° and 20° compared to a switching device with a snap-action switch, in which the connecting means is stationary in the second pivot lever is mounted.
  • the connecting means moves along a trajectory.
  • the trajectory along which the connecting means moves when transferring from the interruption position to the contact position does not necessarily have to be identical to the trajectory when transferring from the contact position to the interruption position.
  • the trajectory preferably has a first trajectory section and a second trajectory section following the first trajectory section, the connecting means interacting with the guide structure in the first trajectory section and not interacting with the guide structure in the second trajectory section.
  • the movement of the connecting means in the area of the second trajectory section is therefore not influenced by the guide structure.
  • the trajectory preferably has a third trajectory section following the second trajectory section, the connecting means in the third trajectory section interacting with the guide structure.
  • trajectory consists of the first, the second and the third trajectory sections.
  • the connecting means lies against the guide structure in the contact position and/or the interruption position.
  • the connecting means is located in the tipping point position in the second trajectory section, so that the connecting means does not interact with the guide structure in the tipping point position. This avoids unwanted braking or inhibiting the movement of the jump switch in the area of the tipping point position, so that the guide structure does not have a negative effect on the desired sudden switching of the jump switch.
  • the connecting means is in the interruption position and in the contact position in the first end position.
  • the connecting means is in the tipping point position in the second end position. It is considered particularly advantageous if the connecting means is in the second end position in the second path curve section, preferably in the second end position over the entire second path curve section.
  • the joint arrangement preferably has a third pivot lever which is pivotally mounted about a third pivot axis, preferably fixed to the housing, the third pivot lever interacting positively with the second pivot lever when the second pivot lever is pivoted, with play in the pivot direction of the second pivot lever.
  • the second pivoting lever can be pivoted through a limited angular range without the third pivoting lever being pivoted.
  • the second pivoting lever is often also referred to as a freewheel lever or shift rod and/or the third pivoting lever is referred to as a rotor.
  • the third pivoting lever has stops spaced apart in the pivoting direction of the second pivoting lever in order to limit pivotability of the second pivoting lever relative to the third pivoting lever.
  • the third pivoting lever preferably has a sector-shaped recess, with the second pivoting lever being arranged in this sector-shaped recess.
  • the joint arrangement has a toggle lever joint arrangement, in particular the third pivot lever forms a lever of the toggle lever joint arrangement.
  • the toggle joint arrangement is in a dead center or over-center position in the contact position.
  • the toggle lever joint arrangement is formed by the third pivot lever, a fourth pivot lever which is articulated to the third pivot lever and a slide which is displaceably mounted in the switching device and to which the fourth pivot lever is articulated, with a contact element of the switching contact in is mounted on the slide. It is entirely conceivable that the one contact element is mounted in the slide in a stationary manner or in a displaceable manner against a restoring force of a restoring means mounted in the slide, with the jump switching mechanism interacting with the slide.
  • the switching contact has a contact element which is mounted in the switching device in a linearly displaceable manner, in particular one contact element is mounted in a slide and another contact element of the switching contact is mounted in a stationary manner in the switching device.
  • the restoring means of the jump switch mechanism has one or more mechanical springs.
  • the restoring means is formed by one or more mechanical springs.
  • the one or more mechanical springs are preferably mounted in the first pivot lever.
  • the first pivoting lever has two parallel legs, the respective leg receiving a mechanical spring, in particular the respective leg passing through the spring assigned to it.
  • the connecting means preferably passes through an elongated hole formed in the respective leg. It is entirely conceivable that the springs or the respective spring are arranged in a bearing pocket, with the two springs being supported on the connecting means via the bearing pocket.
  • the connecting means is preferably rod-shaped, in particular designed as a metal pin.
  • the switching device has a bearing structure, wherein the second pivot lever is mounted in a stationary manner and pivotable about the second pivot axis in the bearing structure and/or the third pivot lever is mounted in a stationary manner and pivotable about the third pivot axis in the bearing structure, wherein the bearing structure has the guide structure.
  • the switching device is particularly inexpensive and easy to produce, since the bearing structure takes on the task of supporting at least one of the pivot levers and at the same time implements the management structure.
  • This design can also be viewed as particularly advantageous with regard to assembly, since the bearing structure, the second pivoting lever and/or the third pivoting lever and possibly components interacting with the third pivoting lever can be pre-assembled and inserted as a unit into a housing of the switching device during the assembly process or can be used. It is entirely conceivable that the first pivot lever is also mounted in the bearing structure.
  • the guide structure is preferably formed by an outer edge of the bearing structure.
  • the bearing structure has two bearing plates, with the second pivoting lever and/or the third pivoting lever being arranged between the two bearing plates.
  • the bearing plates are preferably mounted in a stationary manner in a housing of the switching device, in particular mounted in a form-fitting manner in a receiving structure of the housing.
  • the bearing plates are preferably mounted in the housing in the manner of a press fit. It is entirely conceivable that a bearing axis forming the second pivot axis and/or a bearing axis forming the third pivot axis completely penetrates the two bearing plates and protrudes from the respective bearing plate on opposite sides of the bearing plates and is mounted in a stationary manner in a counter-structure formed in the housing.
  • the bearing structure is mounted in a particularly simple manner in a stationary manner in the switching device, in this case the housing of the switching device, and assembly is particularly simple, for example in the form of a plug-in assembly.
  • the two bearing plates are preferably implemented in one component, with two plate-shaped sections forming the two bearing plates.
  • Such a component is preferably U-shaped, with the two legs of the U-shaped component forming the two bearing plates.
  • the guide structure in particular the bearing structure, is made of a metal or a metal alloy, preferably stainless steel. Since the leadership structure in particular is exposed to high mechanical stress, a metal or a metal alloy is particularly suitable for the tasks of the leadership structure. It is entirely conceivable that a guide structure made of a metal and/or a bearing structure made of a metal is additionally coated, for example to avoid oxidation.
  • the first pivot lever is preferably made of a metal or a metal alloy.
  • the second pivot lever is preferably made of a metal or a metal alloy.
  • the connecting means for articulately connecting the first pivoting lever to the second pivoting lever is preferably made of metal or a metal alloy.
  • an axis forming the second pivot axis and/or the third pivot axis is made of metal or a metal alloy.
  • an angle included by the first pivoting lever and the second pivoting lever is 80° to 100°, preferably the included angle is 85° to 95°.
  • the included angle when the second end position of the connecting means in the second pivot lever is reached is 100 ° to 120 °.
  • the angle included by the first pivoting lever and the second pivoting lever is the angle that a connecting line from the first pivoting axis to the connecting means and a connecting line from the second pivoting axis to the connecting means include.
  • the switching device is preferably designed as a switching device for a busbar system, in particular designed as a switch disconnector for a busbar system, the switching device having a number of fuse receptacles corresponding to the number of busbars and a switching contact assigned to the respective fuse receptacle.
  • the fuse holders are designed in particular to accommodate a cylindrical fuse, in particular a D0 fuse.
  • the fuse holders are arranged along a longitudinal direction of the switching device.
  • the snap-action switching mechanism is formed at the end in the switching device with respect to the longitudinal direction.
  • the switching device is designed in particular as a safety strip.
  • this contact element is preferably mounted in the slide so as to be displaceable against a restoring force of a restoring means. This ensures particularly secure contacting of the other contact of the switching contact in the contact position, with the restoring means exerting a force on the switching contact in the contact position of the switching contact in the contact position.
  • the switching device has two stationary stops, with the third pivoting lever resting against one of the stops in the interruption position and in the contact position.
  • the switching device can be operated manually.
  • the switching device has cover flaps, the cover flaps being pivotably mounted in the actuating lever.
  • cover flaps serve to cover the inside of the housing in the different positions of the operating lever.
  • the cover flaps are preferably mounted in a stationary manner in the actuating lever and have a guide means which is displaceably mounted in a guide structure fixed to the housing.
  • the guide structure is designed in such a way that pivoting the actuating lever leads to pivoting of the cover flaps with respect to the actuating lever.
  • This design of the actuating lever with cover flaps can also be implemented independently of the jump switch mechanism according to the invention, thus generally on a switching device with an actuating lever.
  • the fourth pivot axis and the first pivot axis are identical. It is considered particularly advantageous if the actuating lever is made of plastic.
  • the Fig. 1 shows a perspective view of an exemplary embodiment of the switching device 1 according to the invention in a perspective view.
  • the switching device 1 is in a switched off state, thus in a state in which a switching contact 2 of the switching device 1 is in an interrupted position.
  • the switching contact 2 is in a contact position.
  • the switching device 1 is here designed as a multi-pole switching device 1 for use on a busbar system with three busbars. Panels 35 can be arranged on the switching device 1 in order to avoid unintentional intervention in the area of the busbars.
  • the switching device 1 has three fuse receptacles 20 arranged in a row transversely to the busbar system, the respective fuse receptacle 20 being designed to accommodate a cylindrical fuse, in this case a D02 fuse.
  • the respective fuse holder 20 of the switching device 1 is assigned a switching contact 2, an input current conductor 32 and an output current conductor 36.
  • the respective switching contact 2 has a first contact element 3 and a second contact element 4.
  • the switching contacts 2 are in turn arranged in series along a longitudinal direction X of the switching device 1.
  • the switching device 1 has a cover 27 which is pivotally connected to a housing 34 and which covers the fuse holders 20 on the front in the closed position.
  • the housing 34 of the switching device 1 is divided asymmetrically and has two housing parts, the two housing parts being pluggable into one another, so that the housing can be formed in this way.
  • the housing parts are screwed together using separate screws.
  • the housing parts are made of plastic and are designed as injection molded parts.
  • the housing parts each have three foot-like fastening hooks 28 for attaching to the three busbars of the busbar system with a rectangular cross section.
  • a slide 16 is inserted between the two housing parts. This serves to accommodate the first contact element 3 of the respective switching contact 2, which in the present case is designed as a bridge contact.
  • the second contact element 4 of the respective switching contact 2 is mounted in the housing 34 of the switching device 1 so that it is fixed to the housing.
  • the second contact element 4 serves to contact the respective busbar and is therefore also referred to as a busbar contact.
  • the respective first contact element 3 is mounted in the slide 16 so as to be displaceable in the direction of displacement of the slide 16 against a restoring force of a restoring means (not shown).
  • the restoring means is preferably a compression spring, this compression spring pressing the first contact element 3 in the direction of the second contact element 4 in the contact position of the switching contact 2, in order in this way to ensure secure contacting of the first contact element 3 and the second contact element 4 in the Ensure contact position.
  • the first contact elements 3 contact the input current conductor 32 assigned to the respective fuse holder 20.
  • cover flaps 30 are pivotally mounted in the actuating lever 22. These cover flaps 30 serve to cover the interior of the housing in the different positions of the actuating lever 22.
  • the cover flaps 30 have guide means at the ends, each of which is fixed to the housing Guide structure 33 is slidably mounted.
  • the guide structure 33 is designed in such a way that pivoting the actuating lever 22 leads to a pivoting of the cover flaps 30 with respect to the actuating lever 22.
  • the jump switch 5 has a joint arrangement with a first pivot lever 6 which is pivotally mounted about a first pivot axis 7 fixed to the housing, in which case the first pivot axis 7 and the fourth pivot axis 7 are identical.
  • the jump switch 5 also has a second pivot lever 8 which is pivotally mounted about a second pivot axis 9 fixed to the housing, the first pivot lever 6 and the second pivot lever 8 being connected to one another in an articulated manner via a connecting means 10, which in the present case is rod-shaped.
  • the connecting means 10 is slidably mounted in the first pivoting lever 6 and slidably mounted in the second pivoting lever 8, for this purpose the first pivoting lever 6 has an elongated hole 17 and the second pivoting lever 8 has an elongated hole 18, the connecting means 10 having the two elongated holes 17, 18 enforced.
  • the respective elongated hole 17, 18 is formed along a longitudinal direction of the respective pivot lever 6, 8.
  • the first pivoting lever 6 has two legs, the respective leg having an elongated hole, these two elongated holes forming the elongated hole 17 of the first pivoting lever 6.
  • the two legs each accommodate a mechanical spring, these springs forming a restoring means 11, with a displacement of the connecting means 10 in the elongated hole 17 leading to a deformation of the restoring means 11.
  • the two springs are stored in a bearing pocket 31, which are supported on the connecting means 10.
  • the first pivoting lever 6 When the first pivoting lever 6 is pivoted in order to transfer the switching contacts 2 from the contact position to the interruption position and vice versa, the first pivoting lever 6 is pivoted up to a tipping point position against a restoring force of the restoring means 11 and after the tipping point position is exceeded, the restoring means 11 supports further pivoting of the first pivoting lever 6. After the tipping point position has been exceeded thus the further transfer of the switching contact 2 into the other position using the energy stored in the spring.
  • the first pivoting lever 6 is connected in an articulated manner to the actuating lever 22 via a connecting means 23.
  • the connecting means 23 is displaceably mounted in an elongated hole 24 of the actuating lever 22, whereby a certain freewheeling of the connecting means 23 in the actuating lever 22 is realized, so that the operator of the actuating lever 22, after exceeding the tipping point position, further pivots the first pivoting lever 6 and thus switches the switching contacts 2 can no longer be prevented using the actuating lever 22.
  • the installation space available for the snap-action switching device 5 in the switching device 1 is extremely small.
  • the particular problem with such a small installation space is to ensure that the lever forces and the energy stored in the spring and the force applied by the spring at the tipping point are sufficiently large to ensure reliable switching of the switching contacts 2 and still have a sufficiently large pivoting range of the second pivoting lever 8 in order to define functional areas as accurately as possible when switching the switching device 1, in particular when pivoting the second pivoting lever 8.
  • functional areas mean that during the switching process of the switching device 2, there should be no movement of the slide 16 and thus of the first contacts 3 in certain areas in order to ensure the safest possible operation of the switching device 1.
  • the second pivot lever 8 has the largest possible pivot range. Furthermore, it must be ensured that the leverage of the second pivot lever 8 is sufficiently large after the tipping point position has been exceeded in order to actuate a toggle lever joint arrangement 15 that interacts with the second pivot lever 8.
  • the first pivoting lever 6 and the second pivoting lever 8 enclose an angle ⁇ of approximately 90° both in the contact position and in the interruption position.
  • the switching device 1 has a guide structure 12 fixed to the housing, whereby when the switching contact 2 is transferred from the contact position to the interruption position and vice versa, the connecting means 10 is connected to the guide structure 12 interacts.
  • the guide structure 12 influences the displacement of the connecting means 10 in the first pivoting lever 6 and in the second pivoting lever 8 when switching the switching device 1, whereby the switching behavior of the switching device 1 is influenced and optimized in a particularly simple manner by the design of the guide structure 12 can.
  • the connecting means 10 moves along a trajectory 13.
  • This trajectory 13 is in the Fig. 5 indicated by the dashed line.
  • the trajectory 13 has a first trajectory section and a second trajectory section following the first trajectory section, the connecting means 10 interacting with the guide structure 12 in the first trajectory section and not interacting with the guide structure 12 over the entire second trajectory section.
  • the second trajectory section is followed by a third trajectory section, with the connecting means 10 interacting with the guide structure 12 in the third trajectory section.
  • the connecting means 10 In the tipping point position, the connecting means 10 is located in the area of the second trajectory section and therefore does not interact with the guide structure 12, whereby the jump switch 5 can be turned over as unhindered as possible.
  • the connecting means 10 contacts the guide structure 12 again, whereby the guide structure 12 brakes the movement of the jump switch 5 and in this way prevents unwanted bouncing of the jump switch 5 and the slider 16 interacting with it.
  • the connecting means 10 is displaced in the first pivoting lever 6 and in the second pivoting lever 8 from a first end position to a second end position due to the interaction with the guide structure 12 against the restoring force of the restoring means 11 delay.
  • a distance of the connecting means 10 from the second pivot axis 9 is greater in the first end position than in the second end position, the guide structure 12 being designed such that when the switching contact 2 is transferred from the interruption position to the contact position and vice versa, a distance of the connecting means 10 from the first pivot axis 7 when the second end position is reached is less than would be the case without the guide structure 12.
  • the Fig. 11 a) shows the jump switch 5 in a position at the beginning of the first curve section and the Fig.
  • FIG. 11 b) shows the jump switch 5 in a position at the end of the first trajectory section.
  • the connecting means 10 is in the first end position and in the Fig. 11 b) in the second end position.
  • the included angle ⁇ is approximately 110°.
  • the second pivoting lever 8 takes over the further guidance of the connecting means 10 and the connecting means 10 initially no longer interacts with the guide structure 12 when the first pivoting lever 6 is pivoted further, but only again when the connecting means 10 is in the third trajectory section entry.
  • the trajectory 13 is essentially determined by the pivoting movement of the second pivot lever 8 and is therefore essentially circular arc-shaped.
  • the joint arrangement has a third pivot lever 14 which is pivotally mounted about a third pivot axis 9 and which is also referred to as a rotor in connection with jump switches of an electrical switching device.
  • the third pivoting lever 14 interacts in a form-fitting manner with the second pivoting lever 8 with play in the pivoting direction of the second pivoting lever 8. There is therefore a certain amount of freewheeling between the third pivoting lever 14 and the second pivoting lever 8.
  • the third pivot axis 9 is identical to the second pivot axis 9.
  • the third pivoting lever 14 has a sector-shaped recess in which the second pivoting lever 8 is arranged.
  • the sector-shaped recess has a freewheel angle of approximately 70° on. In the contact position and in the interruption position, the third pivot lever 14 rests against stops 21 formed in the housing 34.
  • the Fig. 10 and 12 show a sequence of movements when transferring the switching device 1 from an off position to an on position, thus when transferring the switching contacts 2 from the interruption position to the contact position.
  • the individual images of the Fig. 10 and 12 are to be viewed in alphabetical order.
  • the same applies to the Fig. 11 which shows a sequence of movements when the switching device 1 is transferred from the off position to the on position.

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  • Mechanisms For Operating Contacts (AREA)

Claims (15)

  1. Appareil de commutation (1), notamment sectionneur à coupure en charge pour un système de barres omnibus, l'appareil de commutation (1) présentant au moins un contact de commutation (2), l'au moins un contact de commutation (2) pouvant être transféré d'une position de contact à une position d'interruption et inversement, l'appareil de commutation (1) présentant un mécanisme de commutation brusque actionnable (5) pour le transfert de l'au moins un contact de commutation (2) de la position de contact à la position d'interruption et inversement, le mécanisme de commutation brusque (5) présentant un agencement d'articulation avec un premier levier pivotant (6) monté de manière pivotante autour d'un premier axe de pivotement (7) et avec un deuxième levier pivotant (8) monté de manière pivotante autour d'un deuxième axe de pivotement (9), le premier levier pivotant (6) et le deuxième levier pivotant (8) étant reliés entre eux de manière articulée par l'intermédiaire d'un moyen de liaison (10), le moyen de liaison (10) étant monté de manière déplaçable dans le premier levier pivotant (6) en déformant un moyen de rappel (11), un pivotement du premier levier pivotant (6) lors du transfert du contact de commutation (2) de la position de contact à la position d'interruption et/ou lors du transfert du contact de commutation (2) de la position d'interruption à la position de contact s'effectuant à l'encontre d'une force de rappel du moyen de rappel (11) jusqu'à une position de point de basculement et, après le dépassement de la position de point de basculement, le moyen de rappel (11) favorisant un pivotement supplémentaire du premier levier pivotant (6), le moyen de liaison (10) étant monté de manière déplaçable dans le deuxième levier pivotant (8), caractérisé en ce que l'appareil de commutation (1) présente une structure de guidage (12), le moyen de liaison (10) coopérant avec la structure de guidage (12) lors du transfert du contact de commutation (2) de la position de contact à la position d'interruption et inversement.
  2. Appareil de commutation (1) selon la revendication 1, dans lequel, lors du transfert du contact de commutation (2) de la position d'interruption à la position de contact et/ou lors du transfert du contact de commutation (2) de la position de contact à la position d'interruption, le moyen de liaison (10) se déplace le long d'une courbe de trajectoire (13), la courbe de trajectoire (13) présentant une première section de courbe de trajectoire et une deuxième section de courbe de trajectoire suivant la première section de courbe de trajectoire, le moyen de liaison (10) coopérant avec la structure de guidage (12) dans la première section de courbe de trajectoire et ne coopérant pas avec la structure de guidage (12) dans la deuxième section de courbe de trajectoire, de préférence la courbe de trajectoire (13) présentant une troisième section de courbe de trajectoire suivant la deuxième section de courbe de trajectoire, le moyen de liaison (10) coopérant avec la structure de guidage (12) dans la troisième section de courbe de trajectoire.
  3. Appareil de commutation (1) selon la revendication 2, dans lequel le moyen de liaison (10) se trouve dans la position de point de basculement dans la deuxième section de courbe de trajectoire.
  4. Appareil de commutation (1) selon l'une quelconque des revendications 2 à 3, dans lequel la structure de guidage (12) est conçue de telle sorte que, dans la première section de courbe de trajectoire, le moyen de liaison (10) est déplacé dans le premier levier pivotant (6) à l'encontre de la force de rappel du moyen de rappel (11) et est déplacé dans le deuxième levier pivotant (8).
  5. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 4, dans lequel le moyen de liaison (10) peut être déplacé dans le deuxième levier pivotant (8) d'une première position d'extrémité à une deuxième position d'extrémité, une distance du moyen de liaison (10) par rapport au deuxième axe de pivotement (9) étant plus grande dans la première position d'extrémité que dans la deuxième position d'extrémité, la structure de guidage (12) étant conçue de telle sorte que, lors du transfert du contact de commutation (2) de la position d'interruption à la position de contact et/ou lors du transfert du contact de commutation (2) de la position de contact à la position d'interruption, une distance du moyen de liaison (10) par rapport au premier axe de pivotement (7), lorsque la deuxième position d'extrémité est atteinte, est inférieure à ce qu'elle serait sans la structure de guidage (12).
  6. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 5, dans lequel l'agencement d'articulation présente un troisième levier pivotant (14) monté de manière pivotante autour d'un troisième axe de pivotement (9), le troisième levier pivotant (14) coopérant par complémentarité de forme avec le deuxième levier pivotant (8) lors d'un pivotement du deuxième levier pivotant (8) en cas de jeu dans la direction de pivotement du deuxième levier pivotant (8), notamment le troisième axe de pivotement (9) étant identique au deuxième axe de pivotement (9).
  7. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 6, dans lequel l'agencement d'articulation présente un agencement d'articulation à genouillère (15), notamment le troisième levier pivotant (14) forme un levier de l'agencement d'articulation à genouillère (15), de préférence l'agencement d'articulation à genouillère (15) se trouve dans la position de contact dans une position de point mort ou position de point mort haut.
  8. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 7, dans lequel un élément de contact (3) du contact de commutation (2) est monté dans l'appareil de commutation (1) de manière déplaçable linéairement, notamment l'élément de contact (3) est monté dans un coulisseau (16).
  9. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 8, dans lequel le moyen de rappel (11) présente un ou plusieurs ressorts mécaniques, notamment le moyen de rappel (11) est formé par un ou plusieurs ressorts mécaniques, les un ou plusieurs ressorts mécaniques étant montés dans le premier levier pivotant (6).
  10. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 9, dans lequel le premier levier pivotant (6) présente un trou oblong (17) et le deuxième levier pivotant (8) présente un trou oblong (18), le moyen de liaison (10) traversant les deux trous oblongs (17, 18) .
  11. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 10, l'appareil de commutation (1) présentant une structure de palier (19), le deuxième levier pivotant (8) étant monté de manière fixe et pivotante autour du deuxième axe de pivotement (9) dans la structure de palier (19) et/ou le troisième levier pivotant (14) étant monté de manière fixe et pivotante autour du troisième axe de pivotement (9) dans la structure de palier (19), la structure de palier (19) présentant la structure de guidage (12), de préférence la structure de guidage (12) étant formée par un bord extérieur de la structure de palier (19).
  12. Appareil de commutation (1) selon la revendication 11, dans lequel la structure de palier (19) présente deux plaques de palier, le deuxième levier pivotant (8) et/ou le troisième levier pivotant (14) étant agencés entre les deux plaques de palier.
  13. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 12, dans lequel, dans la position d'interruption et/ou dans la position de contact, un angle (α) formé par le premier levier pivotant (6) et le deuxième levier pivotant (8) est de 80° à 100°, de préférence l'angle (α) formé est de 85° à 95°, notamment, lors du transfert du contact de commutation (2) de la position d'interruption à la position de contact et/ou lors du transfert du contact de commutation (2) de la position de contact à la position d'interruption, l'angle (α) formé est de 100° à 120° lorsque le moyen de liaison (10) atteint la deuxième position d'extrémité.
  14. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 13, l'appareil de commutation (1) étant configuré sous forme d'appareil de commutation (1) pour un système de barres omnibus, notamment sous forme de sectionneur à coupure en charge pour un système de barres omnibus, l'appareil de commutation (1) présentant un nombre de logements de fusibles (20) correspondant au nombre de barres omnibus et un contact de commutation (2) associé au logement de fusible (20) respectif, les logements de fusibles (20) étant agencés le long d'une direction longitudinale (X) de l'appareil de commutation (1), le mécanisme de commutation brusque (5) étant réalisé à une extrémité de l'appareil de commutation (1) par rapport à la direction longitudinale (X).
  15. Appareil de commutation (1) selon l'une quelconque des revendications 1 à 14, l'appareil de commutation (1) pouvant être actionné par un levier d'actionnement (22) coopérant avec le premier levier pivotant (6), monté de manière pivotante autour d'un quatrième axe de pivotement (7), le levier d'actionnement (22) et le premier levier pivotant (6) étant reliés entre eux de manière articulée par l'intermédiaire d'un moyen de liaison (23), le moyen de liaison (23) étant monté de manière déplaçable dans le levier d'actionnement (22) et/ou de manière déplaçable dans le premier levier pivotant (6), de préférence le levier d'actionnement (22) présentant un trou oblong (24), le moyen de liaison traversant le trou oblong (24).
EP21166307.5A 2021-03-31 2021-03-31 Appareil de commutation pourvu d'un dispositif interrupteur à déclenchement brusque Active EP4068322B1 (fr)

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PL21166307.5T PL4068322T3 (pl) 2021-03-31 2021-03-31 Łącznik z wyłącznikiem migowym
EP21166307.5A EP4068322B1 (fr) 2021-03-31 2021-03-31 Appareil de commutation pourvu d'un dispositif interrupteur à déclenchement brusque

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EP4068322B1 true EP4068322B1 (fr) 2023-12-13

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Publication number Priority date Publication date Assignee Title
DE4102143A1 (de) * 1991-01-25 1992-08-06 Mueller Jean Ohg Elektrotech Schaltbarer sicherungslastschalter fuer niederspannungssysteme
DE4102144C1 (fr) * 1991-01-25 1992-05-07 Jean Mueller Gmbh Elektrotechnische Fabrik, 6228 Eltville, De
DE19617260C1 (de) * 1996-04-19 1997-06-19 Mueller Jean Ohg Elektrotech Schaltwerk für einen elektrischen Lastschalter
DE10115777A1 (de) 2001-03-29 2003-05-15 Mueller Jean Ohg Elektrotech Mehrpoliges Schaltgerät für den Einsatz auf Sammelschienensystemen
DE10129176C1 (de) 2001-06-19 2002-10-17 Mueller Jean Ohg Elektrotech Mehrpoliges Schaltgerät für den Einsatz auf Sammelschienensystemen
DE102012223656B3 (de) 2012-12-18 2014-04-03 Wöhner GmbH & Co. KG Elektrotechnische Systeme Mehrpoliges Schaltgerät

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EP4068322A1 (fr) 2022-10-05

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