EP1349187B1 - Switching device for opening and connecting at least one electric line - Google Patents

Switching device for opening and connecting at least one electric line Download PDF

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Publication number
EP1349187B1
EP1349187B1 EP03290748A EP03290748A EP1349187B1 EP 1349187 B1 EP1349187 B1 EP 1349187B1 EP 03290748 A EP03290748 A EP 03290748A EP 03290748 A EP03290748 A EP 03290748A EP 1349187 B1 EP1349187 B1 EP 1349187B1
Authority
EP
European Patent Office
Prior art keywords
blade
flexible
drive member
actuator element
return
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.)
Expired - Lifetime
Application number
EP03290748A
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German (de)
French (fr)
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EP1349187A1 (en
Inventor
Pascal Gonin
Patrice Becavin
Jean-Pierre Charreton
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.)
Radiall SA
Original Assignee
Radiall SA
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Filing date
Publication date
Application filed by Radiall SA filed Critical Radiall SA
Publication of EP1349187A1 publication Critical patent/EP1349187A1/en
Application granted granted Critical
Publication of EP1349187B1 publication Critical patent/EP1349187B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
    • H01H50/646—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection intermediate part being a blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • the present invention relates to a switching device for opening and closing at least one electrical line, in particular a high frequency switch adapted to operate with continuous signals, low, medium or high frequencies.
  • Switching devices are already known for opening and closing an electrical line in which a blade-shaped contact piece is supported by an actuator movable in translation between a position in which said contact piece is applied to two parts. contact terminals by closing the power line, and a position in which it is spaced from said contact terminals by opening the power line.
  • the contact piece is guided by rods along which it slides, to ensure proper application of said contact piece against the contact terminals.
  • the European patent EP 0 670 579 attempts to solve this problem by means of a switching device comprising an operating member comprising an axially displaceable contact piece, and two parallel flexible blades each having a central portion secured to the actuating member and two ends each housed in a cradle of a fixed support.
  • This switching device is satisfactory insofar as it eliminates friction at the operating member.
  • the patent EP-A-0618634 discloses a switching device according to the preamble of claim 1.
  • the present invention aims to meet all or part of the aforementioned needs.
  • the term "ability of the region secured to the actuating element or the actuating member to flex relative to adjacent regions" means the ability of this region to flex substantially independently of any bending experienced by adjacent regions. This gives a relative mobility of the latter relative to the adjacent regions, so as to guide the actuating element or the operating member in a substantially rectilinear translation movement.
  • the flexible holding member comprises a flexible return blade integral with an insulating pusher of an actuating member
  • this flexible return blade can be unique, unlike the device described in the European patent. EP 0 670 579 mentioned above, which comprises two parallel flexible blades.
  • the number of parts can be reduced and the device can be more economical and easier to assemble.
  • the height of the insulating pusher can be further reduced.
  • the invention is thus particularly suitable for devices of relatively small dimensions.
  • the holding element comprises at least one flexible blade provided with a preferably also flexible tongue cut in the blade.
  • the tongue can thus maintain, during a displacement of the actuating element or the actuating member, a position substantially perpendicular to the direction of movement.
  • the blade may have a substantially elongate shape and the region of the blade integral with a fixed part of the device and the aforementioned tongue may be located at opposite longitudinal ends of the blade. So, the blade can be secured to a fixed part of the device only at one end, which increases the possibilities of fixing the blade on a fixed part of the device, for example on the frame thereof.
  • the region of the holding element integral with the actuating element or the operating member is situated in a non-central region of the holding element.
  • the aforementioned tongue may have a longitudinal axis and be connected to the rest of the blade at one longitudinal end.
  • the aforementioned tongue advantageously connects to the rest of the blade in a region thereof adjacent to a free end of the blade.
  • the flexible holding element comprises a flexible return blade integral with an insulating pusher of an operating member and the device may comprise an electrically conductive closure plate provided with an orifice allowing the passage of the pusher , said orifice advantageously having a section chosen so as to allow passage and axial displacement of the pusher without friction.
  • the holding element may be substantially flat in the rest position.
  • the flexible return blade is adapted to exert a sufficient elastic return force so that, in the absence of a drive control of the element of actuation, the contact piece bears against the closure plate.
  • the flexible return blade is configured so that, in the absence of drive control of the actuating element, the contact piece is in an intermediate position, between the position of closing and a bearing position against the closure plate.
  • the flexible return blade is configured so that, in the absence of drive control of the actuating element, the contact piece bears against the corresponding contact terminals, that is to say in the closed position.
  • the flexible return blade is adapted to be directly attached to the actuating element, which further reduces the number of parts.
  • the presence of the above-mentioned flexible return blade has the advantage, when an actuating member is attached thereto, that any difference in axial displacement between the operating member and the element actuation which acts on this return blade can be compensated by a deformation of the flexible return blade.
  • the flexible return blade and the actuating element can cooperate by a rigid or non-rigid type connection.
  • the flexible return blade may comprise a tongue to which is fixed the actuating element, in addition to the tongue to which is fixed the operating member.
  • the actuating element is able to act on the operating member via a flexible control blade, separate from said return blade, this blade control may include a tongue adapted to bear against the pusher of the operating member.
  • the interposition of a flexible control blade between the actuating element and the actuating member has the advantage that a possible axial displacement difference between the actuating element and the operating member can be compensated by a deformation of the flexible control blade.
  • the actuating element comprises two upper and lower axial ends, the upper end at least being connected to a flexible holding element mentioned above.
  • the actuating element can no longer be guided by sliding on bearings, but be suspended from one or more flexible holding elements, which makes it possible to avoid any friction of the actuating element on the bearings. fixed parts of the device and therefore the appearance of dust that can affect the operation thereof.
  • the lower end of the actuating element is also connected to a flexible holding element.
  • the device may comprise a flexible control blade capable of acting simultaneously or alternately on said at least two actuators.
  • the aforesaid control blade may serve as a return blade for the two operating members, having two parts located on either side of the attachment portions of the control blade to fixed parts of the device, each of the parts being integral with an operating member, and the actuating element is able to act on one of said two parts of the blade so as to drive one of the two operating members to the open position and the other to the closed position.
  • control blade comprises two parts located on either side of portions for fixing the control blade to fixed parts of the device, each of said parts of the blade being able to act on a corresponding actuating member, the actuating element being fixed to the control blade in one of said two parts and the actuating members are each respectively secured to a return blade separate from the control blade.
  • the device comprises a flexible holding element provided with a plurality of blades each allowing the attachment of an operating member or an actuating element, the element of maintenance having in particular a geometry leaving it invariant by a rotation of 2 ⁇ ⁇ not , n being an integer, equal to 6 for example, about an axis of rotation perpendicular to the plane of the blades.
  • the plurality of blades may be replaced by attachment portions of the actuating member or actuating member each connected to the remainder of the holding member by a plurality of material bridges disposed on its periphery.
  • These elements include an actuator 1, two contact terminals 2 and 3, a closure plate 4 of a conductive body and a flexible return plate 5.
  • the operating member 1 comprises a contact piece 6 in the form of a metal blade, substantially rectangular, electrically conductive.
  • This contact piece 6 is attached to a pusher 7 electrically insulating.
  • the pusher 7 and the contact piece 6 are assembled by a mortise and tenon-type connection, as described in FIG. EP 0 670 579 .
  • the contact piece 6 is able to be applied simultaneously to the two contact terminals 2 and 3, in the closed position.
  • the closing plate 4 which provides electromagnetic shielding vis-à-vis the external environment, comprises an orifice 10 allowing the passage and the axial displacement of the pusher 7 without friction, along an axis X, as can be seen on the figure 2 especially.
  • the flexible return blade 5 has a generally trapezoidal shape, when observed from above.
  • This blade 5 has a connecting region 9 located on the side of the large base of the trapezium and fixed to two studs 11 mounted on the closure plate 4.
  • the flexible return blade 5 comprises a tongue 12 engaged in a groove 13 of the pusher 7 by being retained by a split ring 14.
  • the pusher 7 has a cross-sectional shape substantially rectangular and the tongue 12 has a correspondingly shaped orifice, so as to provide an anti-rotation connection between the pusher 7 and the blade 5.
  • the tongue 12 is formed within the blade 5 and connects to the remainder of this blade 5 in a region 15 adjacent to a free end of the blade 5, opposite to the connecting region 9.
  • the tongue 12 can perform a bending movement with respect to the rest of the blade 5, while the latter can perform a bending movement with respect to the studs 11.
  • This combination of bending movements ensures a substantially rectilinear displacement along the axis X of the operating member 1.
  • the blade 5 thus allows a reliable and precise positioning of the operating member in a plane parallel to the closure plate 4, which substantially reduces the risk of contact of the pusher 7 with the wall of the orifice 10.
  • the return blade 5 is prestressed.
  • the blade 5 permanently exerts on the pusher 7 a restoring force directed along the X axis, upwards, so that the contact piece 6 is, in the open position, bearing against the closing plate 4.
  • the pusher 7 is driven in displacement by means of an actuating element 20, represented partially on the figure 2 , at the lower end of which is fixed a flexible control blade 21, better visible on the Figures 3 and 4 .
  • the flexible control blade 21 comprises a tongue 22 connected to the remainder of the blade 21 in a region 23 located at an end opposite the region 24 connecting the blade 21 to the actuating element 20.
  • the actuating element 20 is able to drive the operating member 1 to an open position in which the contact piece 6 bears against the closure plate 4, as illustrated in FIG. figure 2 towards a closed position of the electrical line, by pressing the tongue 22 on the pusher 7, as illustrated in FIG. figure 4 .
  • the tongue 22 then takes a position substantially perpendicular to the axis X and exerts on the pusher 7 a thrust force substantially parallel to the axis X.
  • the presence of the flexible control blade 21 makes it possible to use an actuating element 20 having an axial displacement that is slightly too large compared to that of the operating member 1, which ensures an optimum contact between the contact terminals 2 and 3 and the contact piece 6.
  • the blade 5 with the exception of the recess made around the tongue 12, and the fixing holes on the studs 11, has only solid parts.
  • the blade 5 may have an additional opening configured to make it more flexible.
  • This tongue 25 is formed within the return blade 5 'and is connected to a region thereof away from the connecting region 9, like the flexible tongue 12.
  • the actuating element 20 will now be described in more detail.
  • the actuating element 20 constitutes the moving part of an electromagnetic type actuator, being driven in displacement by a coil 29 fixed with respect to the switching device, as illustrated very schematically on the figure 5 , the operating member being in the closed position.
  • the coil 29 is connected to the rest of the switching device by not shown fastening means.
  • the electromagnetic actuator may be polarized type or not.
  • the actuating element 20 is fixed in its upper part 30 and in its lower part 31, respectively, to flexible retaining blades 32 and 33.
  • These blades 32 and 33 each have an end secured to a fixed portion 34 of the switching device, for example a frame.
  • these flexible blades 32 and 33 each comprise a tongue 36 and respectively 37, to which are fixed the ends of the actuating element 20.
  • the actuating element 20 is thus kept in suspension by the two flexible blades 32 and 33 and does not rub against any fixed part of the switching device.
  • the actuating element 20 can be directly attached to the return blade 5.
  • the actuating element 20 has a lower groove 40 and the return blade 5 has an orifice 41 for engaging the blade 5 in the groove 40.
  • the orifice 41 has a section chosen so as to allow a clearance between the actuating element 20 and the blade 5 in the plane of the blade 5.
  • connection between the actuating element 20 and the return blade 5 is non-rigid, essentially ensuring the drive in vertical displacement of the blade 5.
  • the actuating element 20 and the blade 5 can also be configured to be connected by a ball joint, obtained for example by the presence of a groove 40 which allows not only the aforementioned clearance in the plane of the blade 5, but also an axial clearance between the blade 5 and the groove 40 which has a greater depth than the thickness of the blade 5.
  • connection between the actuating element 20 and the blade 5 is rigid.
  • the lower holding blade 33 is thus no longer necessary in this embodiment.
  • the blade of control acts on a single actuator.
  • control blade acts on two actuators simultaneously or alternately.
  • a switching device comprising a control blade 50 having two parts 51 and 52 of generally rectangular shape, located on either side of portions 53 for fixing the blade 50 on fixed pads 55.
  • the rectangular part 51 on the left, comprises a tongue 56 on which is fixed an operating member 57, this tongue 56 being connected by two returns 59 to the rest of the rectangular part 51.
  • the actuating element 20 is fixed to this rectangular part 51 by means of a rigid connection 58 by embedding in a groove of the actuating element.
  • This rigid connection 58 can in particular be achieved by means of a screwing, crimping or gluing, this list not being limiting.
  • the second operating member 60 is fixed to the rectangular portion 52, to the right on the Figures 10 and 11 .
  • the portion 52 is devoid of tongue formed therein.
  • the region 52 may comprise a tongue to which is fixed the operating member 60.
  • the actuating element 20 and the part 51 cooperate via a ball joint 58 ', in which case it is necessary to fix the lower part of the actuating element 20 to a flexible blade, as this is the case at the figure 8 .
  • the control blade 50 exerts, via the tongue 56, a downward thrust force on the operating member 57 so as to bring it into its closed position.
  • the portion 52 drives the actuating member 60 upwards, in its open position, bearing against the closure plate.
  • This provides a device allowing, with a single actuating element 20, to drive two operating members in displacement in opposite directions, so as to obtain alternative openings and closures of the power lines.
  • control blade 50 also serves as a return blade for the operating members 57 and 60.
  • the operating members 57 and 60 are each connected to fixed parts of the device by means of a return plate 65 substantially similar to the return blade 5 described above.
  • This device comprises a control blade 50 'generally similar to the control blade 50, but not integral with the operating members 57 and 60.
  • the region 52 of the blade 50 'tilts upwardly so as to allow the operating member 60, under the effect of the restoring force exerted by the return blade 65, to be driven upwards. , in the open position.
  • the switching device with flexible elements each having return blades for a plurality of actuators, control blades for a plurality of actuators or elements holding device for a plurality of actuating elements.
  • Flexible elements each comprise six flexible blades 70 on each of which can be fixed a maneuvering member ( Figures 16, 18, 19, 20 ) or an actuating element ( Figures 16, 17, 18, 19, 20 ).
  • the flexible element of the figure 15 is not part of the invention and does not comprise a flexible blade, but parts 71 each connected to the remainder of the flexible element by four U-shaped material bridges 72 arranged around a portion 71.
  • This part 71 can thus be axially movable relative to the remainder of the flexible element to which it is connected.
  • the aforementioned flexible elements have a symmetry of revolution, that is to say that they have a geometry leaving invariant the element by a rotation of 2 ⁇ ⁇ 6 around an axis perpendicular to the plane of the blades.
  • the aforementioned flexible elements can be fixed to a fixed part of the device by means of pads engaging in openings 75 of the flexible elements.
  • openings 75 may be six in number and may be located at the periphery of the flexible element, requiring the presence of six studs, as illustrated in FIG. figure 15 .
  • the flexible element may comprise a single central opening 75 for fixing a single stud, as illustrated in FIG. figure 20 .
  • the flexible elements described in Figures 15 to 20 may have a different number of blades, less than or greater than six.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Tumbler Switches (AREA)
  • Push-Button Switches (AREA)
  • Diaphragms For Cameras (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Description

La présente invention a pour objet un dispositif de commutation pour ouvrir et fermer au moins une ligne électrique, notamment un commutateur à haute fréquence apte à fonctionner aussi bien avec des signaux continus, basses, moyennes ou hautes fréquences.The present invention relates to a switching device for opening and closing at least one electrical line, in particular a high frequency switch adapted to operate with continuous signals, low, medium or high frequencies.

On connaît déjà des dispositifs de commutation pour ouvrir et fermer une ligne électrique dans lesquels une pièce de contact, en forme de lame, est supportée par un organe de manoeuvre mobile en translation entre une position dans laquelle ladite pièce de contact s'applique sur deux bornes de contact en fermant la ligne électrique, et une position dans laquelle elle est écartée desdites bornes de contact en ouvrant la ligne électrique.Switching devices are already known for opening and closing an electrical line in which a blade-shaped contact piece is supported by an actuator movable in translation between a position in which said contact piece is applied to two parts. contact terminals by closing the power line, and a position in which it is spaced from said contact terminals by opening the power line.

Lors de ces mouvements de translation, la pièce de contact est guidée par des tiges le long desquelles elle glisse, afin d'assurer une bonne application de ladite pièce de contact contre les bornes de contact.During these translational movements, the contact piece is guided by rods along which it slides, to ensure proper application of said contact piece against the contact terminals.

Un tel guidage présente toutefois l'inconvénient que les frottements qui s'exercent entre la pièce de contact et ses tiges de guidage produisent des poussières qui peuvent se déposer sur les surfaces de contact électriques et peuvent, à la longue, dégrader la fiabilité du dispositif de commutation.Such guidance, however, has the disadvantage that the friction between the contact piece and its guide rods produce dust that can be deposited on the electrical contact surfaces and can, in the long run, degrade the reliability of the device. of commutation.

Le brevet européen EP 0 670 579 tente de résoudre ce problème grâce à un dispositif de commutation comprenant un organe de manoeuvre comportant une pièce de contact déplaçable axialement, et deux lames flexibles parallèles présentant chacune une partie centrale solidaire de l'organe de manoeuvre et deux extrémités logées chacune dans un berceau d'un support fixe.The European patent EP 0 670 579 attempts to solve this problem by means of a switching device comprising an operating member comprising an axially displaceable contact piece, and two parallel flexible blades each having a central portion secured to the actuating member and two ends each housed in a cradle of a fixed support.

Ce dispositif de commutation est satisfaisant dans la mesure où l'on supprime les frottements au niveau de l'organe de manoeuvre.This switching device is satisfactory insofar as it eliminates friction at the operating member.

On connaît également par la demande de brevet EP 1 047 089 un relais coaxial comportant des lames mobiles pour ouvrir et fermer les contacts coaxiaux. Ces lames sont portées chacune par un actionneur fixé à son extrémité supérieure à un organe de rappel. Celui-ci comporte une branche centrale sur laquelle est fixé l'actionneur et, de part et d'autre, deux branches latérales servant à fixer (à l'aide de vis) l'organe de rappel sur une paroi du relais. Cet organe de rappel, du fait de la présence de multiples branches, est relativement encombrant et peut ne pas être adapté à une utilisation dans des dispositifs de dimensions réduites.It is also known from the patent application EP 1 047 089 a coaxial relay having movable blades for opening and closing the coaxial contacts. These blades are each carried by an actuator fixed at its upper end to a return member. This comprises a central branch on which is fixed the actuator and, on both sides, two lateral branches for fixing (with screws) the return member on a wall of the relay. This return member, due to the presence of multiple branches, is relatively bulky and may not be suitable for use in devices of reduced dimensions.

On connaît encore par le brevet US 5 471 183 un commutateur coaxial comportant des éléments de connexion portés chacun par un support diélectrique. Celui-ci est fixé à deux organes de rappel superposés et est solidaire d'un aimant permanent apte à coopérer avec un autre aimant porté un rotor pour actionner le support diélectrique correspondant. Ce commutateur est dépourvu d'actionneur venant au contact avec le support diélectrique pour le déplacer. De plus, du fait de la fixation du support diélectrique sur deux lames, ce support présente une hauteur relativement importante, ce qui rend le commutateur plus encombrant.We still know by the patent US 5,471,183 a coaxial switch having connection elements each carried by a dielectric support. This is attached to two superimposed return members and is integral with a permanent magnet adapted to cooperate with another magnet carried a rotor for actuating the corresponding dielectric support. This switch has no actuator coming into contact with the dielectric support to move it. In addition, because of the attachment of the dielectric support on two blades, this support has a relatively large height, which makes the switch more bulky.

Le brevet EP-A-0618634 décrit un dispositif de commutation selon le préambule de la revendication 1.The patent EP-A-0618634 discloses a switching device according to the preamble of claim 1.

Il existe un besoin pour améliorer encore les dispositifs de commutation, notamment en réduisant le nombre de pièces constitutives et en réduisant son encombrement.There is a need to further improve the switching devices, in particular by reducing the number of component parts and reducing its size.

Il existe également un besoin pour supprimer, outre les frottements au niveau de l'organe de manoeuvre, les frottements au niveau d'un actionneur permettant d'entraîner l'organe de manoeuvre.There is also a need to suppress, in addition to friction at the operating member, the friction at an actuator for driving the actuator.

Il existe encore un besoin pour pouvoir agir simultanément sur une pluralité de commutateurs.There is still a need to be able to act simultaneously on a plurality of switches.

La présente invention a pour objet de répondre à tout ou partie des besoins précités.The present invention aims to meet all or part of the aforementioned needs.

Elle y parvient grâce à un dispositif de commutation selon la revendication 1.It achieves this through a switching device according to claim 1.

On entend par « aptitude de la région solidaire de l'élément d'actionnement ou de l'organe de manoeuvre à fléchir par rapport à des régions adjacentes » l'aptitude de cette région à fléchir de manière sensiblement indépendante de la flexion éventuelle subie par les régions adjacentes. On obtient ainsi une mobilité relative de celle-ci par rapport aux régions adjacentes, de manière à permettre de guider l'élément d'actionnement ou l'organe de manoeuvre dans un déplacement sensiblement en translation rectiligne.The term "ability of the region secured to the actuating element or the actuating member to flex relative to adjacent regions" means the ability of this region to flex substantially independently of any bending experienced by adjacent regions. This gives a relative mobility of the latter relative to the adjacent regions, so as to guide the actuating element or the operating member in a substantially rectilinear translation movement.

Grâce à l'invention, lorsque l'élément de maintien flexible comporte une lame de rappel flexible solidaire d'un poussoir isolant d'un organe de manoeuvre, cette lame de rappel flexible peut être unique, contrairement au dispositif décrit dans le brevet européen EP 0 670 579 précité, qui comporte deux lames flexibles parallèles.Thanks to the invention, when the flexible holding member comprises a flexible return blade integral with an insulating pusher of an actuating member, this flexible return blade can be unique, unlike the device described in the European patent. EP 0 670 579 mentioned above, which comprises two parallel flexible blades.

Le nombre de pièces peut ainsi être réduit et le dispositif peut être plus économique et être plus facile à assembler.The number of parts can be reduced and the device can be more economical and easier to assemble.

La hauteur du poussoir isolant peut en outre être réduite.The height of the insulating pusher can be further reduced.

L'invention est ainsi particulièrement adaptée pour des dispositifs de dimensions relativement faibles.The invention is thus particularly suitable for devices of relatively small dimensions.

Selon l'invention, l'élément de maintien comporte au moins une lame flexible pourvue d'une languette de préférence également flexible découpée au sein de la lame.According to the invention, the holding element comprises at least one flexible blade provided with a preferably also flexible tongue cut in the blade.

Lorsque l'organe de manoeuvre ou l'élément d'actionnement auquel la languette est fixée est entraîné en déplacement, la combinaison d'un mouvement en flexion de la lame, d'une part, et d'un mouvement en flexion de la languette, d'autre part, permet d'obtenir un déplacement sensiblement en translation rectiligne de l'élément d'actionnement ou de l'organe de manoeuvre.When the operating member or the actuating element to which the tongue is attached is driven in displacement, the combination of a bending movement of the blade on the one hand, and a bending movement of the tongue on the other hand, makes it possible to obtain a displacement substantially in rectilinear translation of the actuating element or the actuating member.

La languette peut ainsi conserver, lors d'un déplacement de l'élément d'actionnement ou de l'organe de manoeuvre, une position sensiblement perpendiculaire à la direction de déplacement.The tongue can thus maintain, during a displacement of the actuating element or the actuating member, a position substantially perpendicular to the direction of movement.

Dans la présente invention, la lame peut présenter une forme sensiblement allongée et la région de la lame solidaire d'une partie fixe du dispositif et la languette précitée peuvent se situer à des extrémités longitudinales opposées de la lame. Ainsi, la lame peut être solidarisée à une partie fixe du dispositif seulement à une extrémité, ce qui permet d'accroître les possibilités de fixation de la lame sur une partie fixe du dispositif, par exemple sur le bâti de celui-ci.In the present invention, the blade may have a substantially elongate shape and the region of the blade integral with a fixed part of the device and the aforementioned tongue may be located at opposite longitudinal ends of the blade. So, the blade can be secured to a fixed part of the device only at one end, which increases the possibilities of fixing the blade on a fixed part of the device, for example on the frame thereof.

D'une manière générale, la région de l'élément de maintien solidaire de l'élément d'actionnement ou de l'organe de manoeuvre est située dans une région non centrale de l'élément de maintien.In general, the region of the holding element integral with the actuating element or the operating member is situated in a non-central region of the holding element.

La languette précitée peut présenter un axe longitudinal et être reliée au reste de la lame à une seule extrémité longitudinale.The aforementioned tongue may have a longitudinal axis and be connected to the rest of the blade at one longitudinal end.

La languette précitée se raccorde avantageusement au reste de la lame dans une région de celle-ci adjacente à une extrémité libre de la lame.The aforementioned tongue advantageously connects to the rest of the blade in a region thereof adjacent to a free end of the blade.

Comme indiqué plus haut, l'élément de maintien flexible comporte une lame de rappel flexible solidaire d'un poussoir isolant d'un organe de manoeuvre et le dispositif peut comporter une plaque de fermeture électriquement conductrice pourvue d'un orifice permettant le passage du poussoir, ledit orifice présentant avantageusement une section choisie de manière à permettre le passage et le déplacement axial du poussoir sans frottement.As indicated above, the flexible holding element comprises a flexible return blade integral with an insulating pusher of an operating member and the device may comprise an electrically conductive closure plate provided with an orifice allowing the passage of the pusher , said orifice advantageously having a section chosen so as to allow passage and axial displacement of the pusher without friction.

L'élément de maintien peut être sensiblement plan en position de repos.The holding element may be substantially flat in the rest position.

Dans un exemple de mise en oeuvre de l'invention, la lame de rappel flexible est apte à exercer une force élastique de rappel suffisante de manière à ce que, en l'absence d'une commande d'entraînement de l'élément d'actionnement, la pièce de contact vienne en appui contre la plaque de fermeture.In an exemplary implementation of the invention, the flexible return blade is adapted to exert a sufficient elastic return force so that, in the absence of a drive control of the element of actuation, the contact piece bears against the closure plate.

En variante, la lame de rappel flexible est configurée de manière à ce que, en l'absence d'une commande d'entraînement de l'élément d'actionnement, la pièce de contact se situe dans une position intermédiaire, entre la position de fermeture et une position d'appui contre la plaque de fermeture.In a variant, the flexible return blade is configured so that, in the absence of drive control of the actuating element, the contact piece is in an intermediate position, between the position of closing and a bearing position against the closure plate.

En variante encore, la lame de rappel flexible est configurée de manière à ce que, en l'absence d'une commande d'entraînement de l'élément d'actionnement, la pièce de contact vienne en appui contre les bornes de contact correspondantes, c'est-à-dire en position de fermeture.In another variant, the flexible return blade is configured so that, in the absence of drive control of the actuating element, the contact piece bears against the corresponding contact terminals, that is to say in the closed position.

Dans une mise en oeuvre particulière de l'invention, la lame de rappel flexible est apte à se solidariser directement à l'élément d'actionnement, ce qui permet de réduire encore le nombre de pièces.In a particular implementation of the invention, the flexible return blade is adapted to be directly attached to the actuating element, which further reduces the number of parts.

Dans cette mise en oeuvre, la présence de la lame de rappel flexible précitée présente l'avantage, lorsqu'un organe de manoeuvre y est fixé, qu'une éventuelle différence de déplacement axial entre l'organe de manoeuvre et l'élément d'actionnement qui agit sur cette lame de rappel peut être compensée par une déformation de la lame de rappel flexible.In this implementation, the presence of the above-mentioned flexible return blade has the advantage, when an actuating member is attached thereto, that any difference in axial displacement between the operating member and the element actuation which acts on this return blade can be compensated by a deformation of the flexible return blade.

En effet, si l'élément d'actionnement transmettait à l'organe de manoeuvre un débattement axial sur une course plus importante que la longueur qui sépare sa position d'ouverture et sa position de fermeture, il pourrait s'ensuivre une détérioration de l'organe de manoeuvre ou de l'élément d'actionnement.Indeed, if the actuating element transmitted to the actuating member an axial displacement over a greater stroke than the length which separates its open position and its closed position, it could result in a deterioration of the operating member or the actuating element.

Inversement, si l'élément d'actionnement transmettait à l'organe de manoeuvre un déplacement d'amplitude trop faible, il pourrait s'ensuivre une mauvaise application de la pièce de contact sur les bornes de contact et une fermeture imparfaite de la ligne électrique.Conversely, if the actuating element transmitted to the operating member a displacement of too low amplitude, it could lead to a bad application of the contact piece on the contact terminals and imperfect closure of the power line. .

Ainsi, grâce à la lame de rappel, on peut délibérément utiliser un élément d'actionnement qui présente un débattement trop grand par rapport à la longueur que doit parcourir l'organe de manoeuvre, de manière à garantir que l'organe de manoeuvre soit déplacé sur une longueur suffisante pour assurer un bon contact électrique, tout en préservant l'organe de manoeuvre et l'élément d'actionnement de tout risque de détérioration.Thus, thanks to the return blade, one can deliberately use an actuating element which has a travel too large compared to the length that must travel through the actuating member, so as to ensure that the operating member is moved over a sufficient length to ensure good electrical contact, while preserving the operating member and the actuating element from any risk of deterioration.

La lame de rappel flexible et l'élément d'actionnement peuvent coopérer par une liaison de type rigide ou non rigide.The flexible return blade and the actuating element can cooperate by a rigid or non-rigid type connection.

La lame de rappel flexible peut comporter une languette à laquelle est fixé l'élément d'actionnement, en plus de la languette à laquelle est fixé l'organe de manoeuvre.The flexible return blade may comprise a tongue to which is fixed the actuating element, in addition to the tongue to which is fixed the operating member.

Dans un autre exemple de mise en oeuvre de l'invention, l'élément d'actionnement est apte à agir sur l'organe de manoeuvre par l'intermédiaire d'une lame de commande flexible, distincte de ladite lame de rappel, cette lame de commande pouvant comporter une languette apte à venir en appui contre le poussoir de l'organe de manoeuvre.In another example of implementation of the invention, the actuating element is able to act on the operating member via a flexible control blade, separate from said return blade, this blade control may include a tongue adapted to bear against the pusher of the operating member.

La présence de la languette sur la lame de commande, le cas échéant, permet d'exercer sur l'organe de manoeuvre une force dirigée parallèlement à la direction de déplacement rectiligne de l'organe de manoeuvre.The presence of the tongue on the control blade, if necessary, allows to exert on the actuating member a force directed parallel to the direction of rectilinear movement of the operating member.

L'interposition d'une lame de commande flexible entre l'élément d'actionnement et l'organe de manoeuvre présente l'avantage précité qu'une éventuelle différence de débattement axial entre l'élément d'actionnement et l'organe de manoeuvre peut être compensée par une déformation de la lame de commande flexible.The interposition of a flexible control blade between the actuating element and the actuating member has the advantage that a possible axial displacement difference between the actuating element and the operating member can be compensated by a deformation of the flexible control blade.

Dans un exemple de mise en oeuvre de l'invention, l'élément d'actionnement comporte deux extrémités axiales supérieure et inférieure, l'extrémité supérieure au moins étant reliée à un élément de maintien flexible précité.In an exemplary implementation of the invention, the actuating element comprises two upper and lower axial ends, the upper end at least being connected to a flexible holding element mentioned above.

Ainsi, l'élément d'actionnement peut ne plus être guidé par coulissement sur des paliers, mais être suspendu à un ou plusieurs éléments de maintien flexibles, ce qui permet d'éviter d'éventuels frottements de l'élément d'actionnement sur des parties fixes du dispositif et donc l'apparition de poussières qui peuvent nuire au fonctionnement de celui-ci.Thus, the actuating element can no longer be guided by sliding on bearings, but be suspended from one or more flexible holding elements, which makes it possible to avoid any friction of the actuating element on the bearings. fixed parts of the device and therefore the appearance of dust that can affect the operation thereof.

Dans un exemple de mise en oeuvre de l'invention, l'extrémité inférieure de l'élément d'actionnement est également reliée à un élément de maintien flexible.In an exemplary implementation of the invention, the lower end of the actuating element is also connected to a flexible holding element.

Lorsque le dispositif comporte au moins deux organes de manoeuvre pour deux lignes électriques, celui-ci peut comporter une lame de commande flexible apte à agir de manière simultanée ou alternative sur lesdits au moins deux organes de manoeuvre.When the device comprises at least two actuators for two power lines, it may comprise a flexible control blade capable of acting simultaneously or alternately on said at least two actuators.

La lame de commande précitée peut servir de lame de rappel pour les deux organes de manoeuvre, présentant deux parties situées de part et d'autre de portions de fixation de la lame de commande à des parties fixes du dispositif, chacune des parties étant solidaire d'un organe de manoeuvre, et l'élément d'actionnement est apte à agir sur l'une desdites deux parties de la lame de manière à entraîner l'un des deux organes de manoeuvre vers la position d'ouverture et l'autre vers la position de fermeture.The aforesaid control blade may serve as a return blade for the two operating members, having two parts located on either side of the attachment portions of the control blade to fixed parts of the device, each of the parts being integral with an operating member, and the actuating element is able to act on one of said two parts of the blade so as to drive one of the two operating members to the open position and the other to the closed position.

En variante, la lame de commande comporte deux parties situées de part et d'autre de portions de fixation de la lame de commande à des parties fixes du dispositif, chacune desdites parties de la lame étant apte à agir sur un organe de manoeuvre correspondant, l'élément d'actionnement étant fixé à la lame de commande dans l'une desdites deux parties et les organes de manoeuvre sont respectivement chacun solidaire d'une lame de rappel distincte de la lame de commande.As a variant, the control blade comprises two parts located on either side of portions for fixing the control blade to fixed parts of the device, each of said parts of the blade being able to act on a corresponding actuating member, the actuating element being fixed to the control blade in one of said two parts and the actuating members are each respectively secured to a return blade separate from the control blade.

Dans un exemple de mise en oeuvre de l'invention, le dispositif comporte un élément de maintien flexible pourvu d'une pluralité de lames permettant chacune la fixation d'un organe de manoeuvre ou d'un élément d'actionnement, l'élément de maintien présentant notamment une géométrie le laissant invariant par une rotation de 2 ⁢ Π n ,

Figure imgb0001
n étant un entier, égal à 6 par exemple, autour d'un axe de rotation perpendiculaire au plan des lames.In an exemplary implementation of the invention, the device comprises a flexible holding element provided with a plurality of blades each allowing the attachment of an operating member or an actuating element, the element of maintenance having in particular a geometry leaving it invariant by a rotation of 2 ⁢ Π not ,
Figure imgb0001
 n being an integer, equal to 6 for example, about an axis of rotation perpendicular to the plane of the blades.

La pluralité de lames peut être remplacée par des parties de fixation de l'élément d'actionnement ou de l'organe de manoeuvre reliées chacune au reste de l'élément de maintien par une pluralité de ponts de matière disposés sur son pourtour.The plurality of blades may be replaced by attachment portions of the actuating member or actuating member each connected to the remainder of the holding member by a plurality of material bridges disposed on its periphery.

L'invention sera mieux comprise à la lecture de la description détaillée qui va suivre, d'exemples de mise en oeuvre non limitatifs, et à l'examen du dessin annexé, sur lequel :

  • la figure 1 représente schématiquement et partiellement, en perspective, un dispositif de commutation conforme à l'invention, avec arrachage partiel de matière dans la plaque de fermeture,
  • la figure 2 est une vue en coupe schématique et partielle, suivant II-II, du dispositif de la figure 1, équipé d'un élément d'actionnement solidaire d'une lame de commande,
  • les figures 3 et 4 représentent schématiquement et partiellement, en perspective, une vue de détail de la figure 2, la lame de commande étant respectivement en position de repos et en position d'appui sur l'organe de manoeuvre,
  • la figure 5 représente schématiquement et partiellement, en coupe axiale, un dispositif de commutation conforme à l'invention, comportant un élément d'actionnement suspendu à ses deux extrémités axiales à des lames flexibles,
  • la figure 6 est une vue schématique et partielle, en perspective, de l'actionneur du dispositif de la figure 5,
  • la figure 7 illustre schématiquement et partiellement une variante de mise en oeuvre du dispositif de la figure 1,
  • la figure 8 est une vue schématique et partielle, en coupe axiale, d'un dispositif de commutation conforme à un autre exemple de mise en oeuvre de l'invention,
  • la figure 9 représente schématiquement et partiellement, en coupe axiale, une variante de mise en oeuvre du dispositif de commutation de la figure 8,
  • la figure 10 représente schématiquement et partiellement, en coupe axiale, un dispositif de commutation conforme à un autre exemple de mise en oeuvre de l'invention,
  • la figure 11 représente schématiquement et partiellement, en vue de dessus, la lame de commande du dispositif de la figure 10,
  • la figure 12 est une vue de détail suivant XII, schématique et partielle, illustrant une variante de mise en oeuvre du dispositif de la figure 10,
  • la figure 13 est une vue schématique et partielle, en coupe axiale, d'un dispositif de commutation conforme à un autre exemple de mise en oeuvre de l'invention,
  • la figure 14 représente schématiquement et partiellement, en vue de dessus, les lames de rappel et de commande du dispositif de la figure 13, et
  • les figures 15 à 20 représentent schématiquement et partiellement, en vue de dessus, des éléments de maintien flexibles conformes à différents exemples de mise en oeuvre de l'invention.
The invention will be better understood on reading the detailed description which follows, of nonlimiting examples of implementation, and on examining the appended drawing, in which:
  • the figure 1 shows schematically and partially, in perspective, a switching device according to the invention, with partial tearing of material in the closure plate,
  • the figure 2 is a schematic and partial sectional view, following II-II, of the device of the figure 1 equipped with an actuating element integral with a control blade,
  • the Figures 3 and 4 represent schematically and partially, in perspective, a detailed view of the figure 2 , the control blade being respectively in the rest position and in the bearing position on the operating member,
  • the figure 5 shows schematically and partially, in axial section, a switching device according to the invention, comprising an actuating element suspended at its two axial ends to flexible blades,
  • the figure 6 is a schematic partial view, in perspective, of the actuator of the device of the figure 5 ,
  • the figure 7 illustrates schematically and partially a variant of implementation of the device of the figure 1 ,
  • the figure 8 is a schematic and partial view, in axial section, of a switching device according to another example of implementation of the invention,
  • the figure 9 represents schematically and partially, in axial section, an alternative embodiment of the switching device of the figure 8 ,
  • the figure 10 shows schematically and partially, in axial section, a switching device according to another example of implementation of the invention,
  • the figure 11 represents schematically and partially, in top view, the control blade of the device of the figure 10 ,
  • the figure 12 is a detail view along XII, schematic and partial, illustrating an alternative embodiment of the device of the figure 10 ,
  • the figure 13 is a schematic and partial view, in axial section, of a switching device according to another example of implementation of the invention,
  • the figure 14 shows schematically and partially, in plan view, the return and control blades of the device of the figure 13 , and
  • the Figures 15 to 20 show schematically and partially, in plan view, flexible holding elements according to different examples of implementation of the invention.

On a représenté sur la figure 1 certains éléments d'un dispositif de commutation pour ouvrir et fermer une ligne électrique.We have shown on the figure 1 some elements of a switching device to open and close a power line.

Parmi ces éléments, figurent un organe de manoeuvre 1, deux bornes de contact 2 et 3, une plaque de fermeture 4 d'un corps conducteur et une lame de rappel flexible 5.These elements include an actuator 1, two contact terminals 2 and 3, a closure plate 4 of a conductive body and a flexible return plate 5.

L'organe de manoeuvre 1 comporte une pièce de contact 6 se présentant sous la forme d'une lame métallique, sensiblement rectangulaire, électriquement conductrice.The operating member 1 comprises a contact piece 6 in the form of a metal blade, substantially rectangular, electrically conductive.

Cette pièce de contact 6 est fixée à un poussoir 7 électriquement isolant.This contact piece 6 is attached to a pusher 7 electrically insulating.

Dans l'exemple décrit, le poussoir 7 et la pièce de contact 6 sont assemblés par une liaison de type tenon-mortaise et à écrasement de matière, comme cela est décrit dans le brevet EP 0 670 579 .In the example described, the pusher 7 and the contact piece 6 are assembled by a mortise and tenon-type connection, as described in FIG. EP 0 670 579 .

La pièce de contact 6 est apte à venir s'appliquer simultanément sur les deux bornes de contact 2 et 3, en position de fermeture.The contact piece 6 is able to be applied simultaneously to the two contact terminals 2 and 3, in the closed position.

La plaque de fermeture 4, qui assure un blindage électromagnétique vis-à-vis de l'environnement extérieur, comporte un orifice 10 permettant le passage et le déplacement axial du poussoir 7 sans frottement, suivant un axe X, comme on peut le voir sur la figure 2 notamment.The closing plate 4, which provides electromagnetic shielding vis-à-vis the external environment, comprises an orifice 10 allowing the passage and the axial displacement of the pusher 7 without friction, along an axis X, as can be seen on the figure 2 especially.

La lame de rappel flexible 5 présente une forme généralement trapézoïdale, lorsqu'observée de dessus. Cette lame 5 comporte une région de liaison 9 située du côté de la grande base du trapèze et fixée à deux plots 11 montés sur la plaque de fermeture 4.The flexible return blade 5 has a generally trapezoidal shape, when observed from above. This blade 5 has a connecting region 9 located on the side of the large base of the trapezium and fixed to two studs 11 mounted on the closure plate 4.

La lame de rappel flexible 5 comporte une languette 12 engagée dans une gorge 13 du poussoir 7 en y étant retenue par une bague fendue 14.The flexible return blade 5 comprises a tongue 12 engaged in a groove 13 of the pusher 7 by being retained by a split ring 14.

Dans l'exemple décrit, le poussoir 7 présente une section transversale de forme sensiblement rectangulaire et la languette 12 présente un orifice de forme correspondante, de manière à assurer une liaison anti-rotation entre le poussoir 7 et la lame 5.In the example described, the pusher 7 has a cross-sectional shape substantially rectangular and the tongue 12 has a correspondingly shaped orifice, so as to provide an anti-rotation connection between the pusher 7 and the blade 5.

La languette 12 est réalisée au sein de la lame 5 et se raccorde au reste de cette lame 5 dans une région 15 adjacente à une extrémité libre de la lame 5, opposée à la région de liaison 9.The tongue 12 is formed within the blade 5 and connects to the remainder of this blade 5 in a region 15 adjacent to a free end of the blade 5, opposite to the connecting region 9.

Ainsi, lorsque l'organe de manoeuvre 1 est entraîné en déplacement, la languette 12 peut accomplir un mouvement de flexion par rapport au reste de la lame 5, tandis que cette dernière peut accomplir un mouvement de flexion par rapport aux plots 11.Thus, when the operating member 1 is driven in displacement, the tongue 12 can perform a bending movement with respect to the rest of the blade 5, while the latter can perform a bending movement with respect to the studs 11.

Cette combinaison de mouvements de flexion assure un déplacement sensiblement rectiligne suivant l'axe X de l'organe de manoeuvre 1.This combination of bending movements ensures a substantially rectilinear displacement along the axis X of the operating member 1.

La lame 5 permet ainsi un positionnement fiable et précis de l'organe de manoeuvre dans un plan parallèle à la plaque de fermeture 4, ce qui diminue sensiblement le risque de contact du poussoir 7 avec la paroi de l'orifice 10.The blade 5 thus allows a reliable and precise positioning of the operating member in a plane parallel to the closure plate 4, which substantially reduces the risk of contact of the pusher 7 with the wall of the orifice 10.

Dans l'exemple des figures 1 et 2, la lame de rappel 5 est précontrainte.In the example of Figures 1 and 2 , the return blade 5 is prestressed.

De cette manière, la lame 5 exerce en permanence sur le poussoir 7 une force de rappel dirigée suivant l'axe X, vers le haut, de sorte que la pièce de contact 6 se trouve, en position d'ouverture, en appui contre la plaque de fermeture 4.In this way, the blade 5 permanently exerts on the pusher 7 a restoring force directed along the X axis, upwards, so that the contact piece 6 is, in the open position, bearing against the closing plate 4.

Dans l'exemple décrit, le poussoir 7 est entraîné en déplacement au moyen d'un élément d'actionnement 20, représenté partiellement sur la figure 2, à l'extrémité inférieure duquel est fixée une lame de commande flexible 21, mieux visible sur les figures 3 et 4.In the example described, the pusher 7 is driven in displacement by means of an actuating element 20, represented partially on the figure 2 , at the lower end of which is fixed a flexible control blade 21, better visible on the Figures 3 and 4 .

La lame de commande flexible 21 comporte une languette 22 se raccordant au reste de la lame 21 dans une région 23 située à une extrémité opposée à la région 24 de liaison de la lame 21 à l'élément d'actionnement 20.The flexible control blade 21 comprises a tongue 22 connected to the remainder of the blade 21 in a region 23 located at an end opposite the region 24 connecting the blade 21 to the actuating element 20.

L'élément d'actionnement 20 est apte à entraîner l'organe de manoeuvre 1 d'une position d'ouverture dans laquelle la pièce de contact 6 est en appui contre la plaque de fermeture 4, comme illustré sur la figure 2, vers une position de fermeture de la ligne électrique, par appui de la languette 22 sur le poussoir 7, comme illustré à la figure 4.The actuating element 20 is able to drive the operating member 1 to an open position in which the contact piece 6 bears against the closure plate 4, as illustrated in FIG. figure 2 towards a closed position of the electrical line, by pressing the tongue 22 on the pusher 7, as illustrated in FIG. figure 4 .

La languette 22 prend alors une position sensiblement perpendiculaire à l'axe X et exerce sur le poussoir 7 une force de poussée sensiblement parallèle à l'axe X.The tongue 22 then takes a position substantially perpendicular to the axis X and exerts on the pusher 7 a thrust force substantially parallel to the axis X.

La présence de la lame de commande flexible 21 permet d'utiliser un élément d'actionnement 20 présentant un débattement axial légèrement trop grand par rapport à celui de l'organe de manoeuvre 1, ce qui permet de garantir un contact optimal entre les bornes de contact 2 et 3 et la pièce de contact 6.The presence of the flexible control blade 21 makes it possible to use an actuating element 20 having an axial displacement that is slightly too large compared to that of the operating member 1, which ensures an optimum contact between the contact terminals 2 and 3 and the contact piece 6.

Dans l'exemple décrit, la lame 5, à l'exception de l'évidement réalisé autour de la languette 12, et des orifices de fixation sur les plots 11, ne présente que des parties pleines.In the example described, the blade 5, with the exception of the recess made around the tongue 12, and the fixing holes on the studs 11, has only solid parts.

En variante, la lame 5 peut comporter une ouverture supplémentaire configurée de manière à la rendre plus flexible.Alternatively, the blade 5 may have an additional opening configured to make it more flexible.

On ne sort pas du cadre de la présente invention lorsque l'élément d'actionnement 20 est directement fixé à la lame de rappel flexible, sans interposition d'une lame de commande.It is not beyond the scope of the present invention when the actuating element 20 is directly attached to the flexible return blade, without the interposition of a control blade.

On a représenté sur la figure 7 une lame de rappel flexible 5' sensiblement analogue à la lame de rappel 5, mais qui se différencie de la lame 5 par le fait qu'elle comporte une deuxième languette 25.We have shown on the figure 7 a flexible return blade 5 'substantially similar to the return blade 5, but which differs from the blade 5 in that it comprises a second tongue 25.

Cette languette 25 est réalisée au sein de la lame de rappel 5' et se raccorde à une région de celle-ci éloignée de la région de liaison 9, à l'instar de la languette flexible 12.This tongue 25 is formed within the return blade 5 'and is connected to a region thereof away from the connecting region 9, like the flexible tongue 12.

On va maintenant décrire plus en détail l'élément d'actionnement 20.The actuating element 20 will now be described in more detail.

L'élément d'actionnement 20 constitue la partie mobile d'un actionneur de type électromagnétique, étant entraîné en déplacement par une bobine 29 fixe par rapport au dispositif de commutation, comme illustré très schématiquement sur la figure 5, l'organe de manoeuvre étant en position de fermeture.The actuating element 20 constitutes the moving part of an electromagnetic type actuator, being driven in displacement by a coil 29 fixed with respect to the switching device, as illustrated very schematically on the figure 5 , the operating member being in the closed position.

La bobine 29 est reliée au reste du dispositif de commutation par des moyens de fixation non représentés.The coil 29 is connected to the rest of the switching device by not shown fastening means.

D'une manière générale, l'actionneur électromagnétique peut être de type polarisé ou non.In general, the electromagnetic actuator may be polarized type or not.

L'élément d'actionnement 20 est fixé, dans sa partie supérieure 30 et dans sa partie inférieure 31, respectivement, à des lames de maintien flexibles 32 et 33.The actuating element 20 is fixed in its upper part 30 and in its lower part 31, respectively, to flexible retaining blades 32 and 33.

Ces lames 32 et 33 présentent chacune une extrémité solidaire d'une partie fixe 34 du dispositif de commutation, par exemple d'un bâti.These blades 32 and 33 each have an end secured to a fixed portion 34 of the switching device, for example a frame.

Comme on peut le voir sur la figure 6 notamment, ces lames flexibles 32 et 33 comportent chacune une languette 36 et respectivement 37, auxquelles sont fixées les extrémités de l'élément d'actionnement 20.As can be seen on the figure 6 in particular, these flexible blades 32 and 33 each comprise a tongue 36 and respectively 37, to which are fixed the ends of the actuating element 20.

On ne sort pas du cadre de la présente invention lorsque les languettes 36 et 37, ou l'une d'elles seulement, sont remplacées par une simple partie pleine de la lame correspondante.It is not beyond the scope of the present invention when the tongues 36 and 37, or only one of them, are replaced by a simple solid part of the corresponding blade.

L'élément d'actionnement 20 est ainsi maintenu en suspension par les deux lames flexibles 32 et 33 et ne vient frotter contre aucune partie fixe du dispositif de commutation.The actuating element 20 is thus kept in suspension by the two flexible blades 32 and 33 and does not rub against any fixed part of the switching device.

Au lieu d'agir sur l'organe de manoeuvre 1 par l'intermédiaire d'une lame de commande, comme illustré à la figure 5, l'élément d'actionnement 20 peut être directement fixé à la lame de rappel 5.Instead of acting on the operating member 1 by means of a control blade, as illustrated in FIG. figure 5 the actuating element 20 can be directly attached to the return blade 5.

Dans l'exemple de mise en oeuvre de la figure 8, l'élément d'actionnement 20 comporte une gorge inférieure 40 et la lame de rappel 5 comporte un orifice 41 permettant d'engager la lame 5 dans la gorge 40.In the example of implementation of the figure 8 the actuating element 20 has a lower groove 40 and the return blade 5 has an orifice 41 for engaging the blade 5 in the groove 40.

L'orifice 41 présente une section choisie de manière à autoriser un jeu entre l'élément d'actionnement 20 et la lame 5 dans le plan de la lame 5.The orifice 41 has a section chosen so as to allow a clearance between the actuating element 20 and the blade 5 in the plane of the blade 5.

Autrement dit, la liaison entre l'élément d'actionnement 20 et la lame de rappel 5 est non rigide, assurant essentiellement l'entraînement en déplacement vertical de la lame 5.In other words, the connection between the actuating element 20 and the return blade 5 is non-rigid, essentially ensuring the drive in vertical displacement of the blade 5.

Le déplacement en translation rectiligne de l'élément d'actionnement 20 est assuré par la présence des lames 32 et 33.The displacement in rectilinear translation of the actuating element 20 is ensured by the presence of the blades 32 and 33.

L'élément d'actionnement 20 et la lame 5 peuvent en outre être configurés de manière à être reliés par une liaison rotule, obtenue par exemple par la présence d'une gorge 40 qui permette non seulement le jeu précité dans le plan de la lame 5, mais également un jeu axial entre la lame 5 et 1a gorge 40 qui présente une profondeur plus importante que l'épaisseur de la lame 5.The actuating element 20 and the blade 5 can also be configured to be connected by a ball joint, obtained for example by the presence of a groove 40 which allows not only the aforementioned clearance in the plane of the blade 5, but also an axial clearance between the blade 5 and the groove 40 which has a greater depth than the thickness of the blade 5.

En variante, comme illustré à la figure 9, la liaison entre l'élément d'actionnement 20 et la lame 5 est rigide.Alternatively, as illustrated in figure 9 the connection between the actuating element 20 and the blade 5 is rigid.

La lame de maintien inférieure 33 n'est ainsi plus nécessaire dans cet exemple de mise en oeuvre.The lower holding blade 33 is thus no longer necessary in this embodiment.

On ne sort pas du cadre de la présente invention en réalisant une liaison d'un autre type entre l'élément d'actionnement 20 et la lame 5, pourvu que cette liaison permette d'entraîner verticalement la lame 5.It is not beyond the scope of the present invention to provide a connection of another type between the actuating element 20 and the blade 5, provided that this connection makes it possible to vertically drive the blade 5.

Dans les exemples de mise en oeuvre qui viennent d'être décrits, la lame de commande agit sur un unique organe de manoeuvre.In the examples of implementation which have just been described, the blade of control acts on a single actuator.

On ne sort pas du cadre de la présente invention lorsque la lame de commande agit sur deux organes de manoeuvre simultanément ou alternativement.It is not beyond the scope of the present invention when the control blade acts on two actuators simultaneously or alternately.

On a représenté sur la figure 10 un dispositif de commutation comportant une lame de commande 50 comportant deux parties 51 et 52 de forme généralement rectangulaire, situées de part et d'autre de portions 53 de fixation de la lame 50 sur des plots 55 fixes.We have shown on the figure 10 a switching device comprising a control blade 50 having two parts 51 and 52 of generally rectangular shape, located on either side of portions 53 for fixing the blade 50 on fixed pads 55.

Comme on peut le voir sur la figure 11, la partie rectangulaire 51, à gauche, comporte une languette 56 sur laquelle est fixé un organe de manoeuvre 57, cette languette 56 se raccordant par deux retours 59 au reste de la partie rectangulaire 51.As can be seen on the figure 11 , the rectangular part 51, on the left, comprises a tongue 56 on which is fixed an operating member 57, this tongue 56 being connected by two returns 59 to the rest of the rectangular part 51.

L'élément d'actionnement 20 est fixé à cette partie rectangulaire 51 par l'intermédiaire d'une liaison rigide 58 par encastrement dans une gorge de l'élément d'actionnement.The actuating element 20 is fixed to this rectangular part 51 by means of a rigid connection 58 by embedding in a groove of the actuating element.

Cette liaison rigide 58 peut notamment être réalisée au moyen d'un vissage, d'un sertissage ou d'un collage, cette liste n'étant pas limitative.This rigid connection 58 can in particular be achieved by means of a screwing, crimping or gluing, this list not being limiting.

Le deuxième organe de manoeuvre 60 est fixé à la partie rectangulaire 52, à droite sur les figures 10 et 11.The second operating member 60 is fixed to the rectangular portion 52, to the right on the Figures 10 and 11 .

Dans l'exemple décrit, la partie 52 est dépourvue de languette réalisée en son sein.In the example described, the portion 52 is devoid of tongue formed therein.

Dans une variante non illustrée, la région 52 peut comporter une languette à laquelle est fixé l'organe de manoeuvre 60.In a variant not shown, the region 52 may comprise a tongue to which is fixed the operating member 60.

Dans une variante illustré à la figure 12, l'élément d'actionnement 20 et la partie 51 coopèrent par l'intermédiaire d'une liaison rotule 58', auquel cas il est nécessaire de fixer la partie inférieure de l'élément d'actionnement 20 à une lame flexible, comme cela est le cas à la figure 8.In a variant illustrated in figure 12 , the actuating element 20 and the part 51 cooperate via a ball joint 58 ', in which case it is necessary to fix the lower part of the actuating element 20 to a flexible blade, as this is the case at the figure 8 .

Lorsque l'élément d'actionnement 20 est commandé en déplacement vers le bas, comme illustré sur la figure 10, la lame de commande 50 exerce, par l'intermédiaire de la languette 56, une force de poussée vers le bas sur l'organe de manoeuvre 57 de manière à l'amener dans sa position de fermeture.When the actuating element 20 is controlled downwardly, as shown in FIG. figure 10 , the control blade 50 exerts, via the tongue 56, a downward thrust force on the operating member 57 so as to bring it into its closed position.

Simultanément, par basculement autour d'un axe Y séparant les parties 51 et 52, la partie 52 entraîne l'organe de manoeuvre 60 vers le haut, dans sa position d'ouverture, en appui contre la plaque de fermeture.Simultaneously, by tilting about a Y axis separating the parts 51 and 52, the portion 52 drives the actuating member 60 upwards, in its open position, bearing against the closure plate.

On obtient ainsi un dispositif permettant, avec un unique élément d'actionnement 20, d'entraîner deux organes de manoeuvre en déplacement en sens opposé, de manière à obtenir des ouvertures et fermetures alternatives des lignes électriques.This provides a device allowing, with a single actuating element 20, to drive two operating members in displacement in opposite directions, so as to obtain alternative openings and closures of the power lines.

Dans l'exemple décrit, la lame de commande 50 sert ainsi également de lame de rappel pour les organes de manoeuvre 57 et 60.In the example described, the control blade 50 also serves as a return blade for the operating members 57 and 60.

En variante, comme illustré aux figures 13 et 14, les organes de manoeuvre 57 et 60 sont chacun reliés à des parties fixes du dispositif par l'intermédiaire d'une lame de rappel 65 sensiblement analogue à la lame de rappel 5 précédemment décrite.Alternatively, as illustrated in Figures 13 and 14 , the operating members 57 and 60 are each connected to fixed parts of the device by means of a return plate 65 substantially similar to the return blade 5 described above.

Ce dispositif comporte une lame de commande 50' généralement analogue à la lame de commande 50, mais non solidaire des organes de manoeuvre 57 et 60.This device comprises a control blade 50 'generally similar to the control blade 50, but not integral with the operating members 57 and 60.

Lorsque l'élément d'actionnement 20 est commandé en déplacement vers le bas, la languette 56 vient en appui contre l'organe de manoeuvre 57 et l'entraîne vers le bas, contre la force de rappel exercée par la lame de rappel 65.When the actuating element 20 is controlled downwardly, the tongue 56 bears against the operating member 57 and pulls it downwards against the restoring force exerted by the return blade 65.

Simultanément, la région 52 de la lame 50' bascule vers le haut de manière à permettre à l'organe de manoeuvre 60, sous l'effet de la force de rappel exercée par la lame de rappel 65, d'être entraîné vers le haut, en position d'ouverture.Simultaneously, the region 52 of the blade 50 'tilts upwardly so as to allow the operating member 60, under the effect of the restoring force exerted by the return blade 65, to be driven upwards. , in the open position.

On ne sort pas du cadre de la présente invention en munissant le dispositif de commutation d'éléments flexibles comportant chacun des lames de rappel pour une pluralité d'organes de manoeuvre, des lames de commande pour une pluralité d'organes de manoeuvre ou des éléments de maintien pour une pluralité d'éléments d'actionnement.It is not beyond the scope of the present invention to provide the switching device with flexible elements each having return blades for a plurality of actuators, control blades for a plurality of actuators or elements holding device for a plurality of actuating elements.

On a représenté sur les figures 16 à 20 de tels éléments flexibles, conformes à différents exemples de mise en oeuvre de l'invention.We have shown on Figures 16 to 20 such flexible elements, according to different examples of implementation of the invention.

Les éléments flexibles, décrits en référence aux figures 16 à 20, comportent chacun six lames flexibles 70 sur chacune desquelles peut se fixer un organe de manoeuvre (figures 16, 18, 19, 20) ou un élément d'actionnement (figures 16, 17, 18, 19, 20).Flexible elements, described with reference to Figures 16 to 20 , each comprise six flexible blades 70 on each of which can be fixed a maneuvering member ( Figures 16, 18, 19, 20 ) or an actuating element ( Figures 16, 17, 18, 19, 20 ).

L'élément flexible de la figure 15 ne fait pas part de l'invention et ne comporte pas de lame flexible, mais des parties 71 reliées chacune au reste de l'élément flexible par quatre ponts de matière 72 en forme de U disposés autour d'une partie 71.The flexible element of the figure 15 is not part of the invention and does not comprise a flexible blade, but parts 71 each connected to the remainder of the flexible element by four U-shaped material bridges 72 arranged around a portion 71.

Cette partie 71 peut ainsi être mobile axialement par rapport au reste de l'élément flexible auquel elle se raccorde.This part 71 can thus be axially movable relative to the remainder of the flexible element to which it is connected.

Les éléments flexibles précités présentent une symétrie de révolution, c'est-à-dire qu'ils présentent une géométrie laissant invariant l'élément par une rotation de 2 ⁢ Π 6

Figure imgb0002
autour d'un axe perpendiculaire au plan des lames.The aforementioned flexible elements have a symmetry of revolution, that is to say that they have a geometry leaving invariant the element by a rotation of 2 ⁢ Π 6
Figure imgb0002
 around an axis perpendicular to the plane of the blades.

On peut réaliser un dispositif de commutation avec deux éléments flexibles précités superposés, l'un solidaire d'éléments d'actionnement et comportant des lames de commande 70 et l'autre solidaire d'organes de manoeuvre et comportant des lames de rappel 70.It is possible to produce a switching device with two aforementioned flexible elements superimposed, one integral with actuating elements and having control blades 70 and the other integral with actuators and having return blades 70.

Les éléments flexibles précités peuvent être fixés à une partie fixe du dispositif par l'intermédiaire de plots s'engageant dans des ouvertures 75 des éléments flexibles.The aforementioned flexible elements can be fixed to a fixed part of the device by means of pads engaging in openings 75 of the flexible elements.

Ces ouvertures 75 peuvent être au nombre de six et se situer en périphérie de l'élément flexible, nécessitant la présence de six plots, comme illustré à la figure 15.These openings 75 may be six in number and may be located at the periphery of the flexible element, requiring the presence of six studs, as illustrated in FIG. figure 15 .

En variante, l'élément flexible peut comporter une seule ouverture centrale 75 pour la fixation d'un seul plot, comme illustré à la figure 20.In a variant, the flexible element may comprise a single central opening 75 for fixing a single stud, as illustrated in FIG. figure 20 .

Ces éléments flexibles à lames multiples peuvent être utilisés pour des commutateurs de type SPnT par exemple.These flexible elements with multiple blades can be used for switches of SPnT type for example.

Bien entendu, l'invention n'est pas limitée aux exemples de mise en oeuvre qui viennent d'être décrits.Of course, the invention is not limited to the implementation examples which have just been described.

Les éléments flexibles décrits aux figures 15 à 20 peuvent avoir un nombre différent de lames, inférieur ou supérieur à six.The flexible elements described in Figures 15 to 20 may have a different number of blades, less than or greater than six.

Claims (18)

  1. switch device for opening and closing at least one electrical line, the device comprising:
    • at least one pair of contact terminals (2,3),
    • at least one drive member (1) each drive member including a contact piece (6) suitable for being displaced axially between a closed position in which the contact piece presses simultaneously against the two contact terminals of said at least one pair, interconnecting them electrically, and an open position in which the contact piece is spaced apart from said two contact terminals,
    • at least one actuator comprising an actuator element (20) that is movable and suitable for driving said drive member(s) (1),
    the drive member being connected to a stationary portion of said device by means of a generally flexible holding element (5;5';50;50';65), which element has at least one region secured to said stationary portion of the device, and at least one region secured to the drive member, which region is suitable for flexing relative to adjacent regions of the holding element so as to enable the drive member to be displaced substantially in rectilinear translation,
    said at least one region secured to the drive member being situated in a non-central region of the holding element, the holding element including at least one flexible return blade (5;5';50;50';65) provided with a tongue (12;22) cut out in said blade, characterized in that said return blade is located between the actuator element (20) and the drive member (1), the blade (12,22) exercising on the drive member a force oriented parallel to the direction of rectilinear movement of the drive member (1).
  2. A device according to claim 2, characterized in that the tongue (12) is connected to the remainder of the blade in a region thereof that is adjacent to a free end of the blade.
  3. A device according to any one of claims 1 and 2, characterized in that the holding element comprises the flexible return blade (5;5';50;65) secured to an insulating pusher (7) of the drive member (1), and in that the device includes an electrically conductive closure plate (4) provided with an orifice (10) allowing said pusher to pass therethrough.
  4. A device according to claim 3, characterized in that said orifice (10) presents a section selected in such a manner as to allow the pusher (7) to pass through and move axially without friction.
  5. A device according to one of claims 3 and 4, characterized in that the flexible return blade (5;5';65) is suitable for exerting a resilient return force that is sufficient to ensure that in the absence of a drive command being applied to the actuator element the contact piece (6) comes to press against the closure plate (4).
  6. A device according to one of claims 3 and 4, characterized in that the flexible return blade is configured in such a manner that in the absence of a drive command being applied to the actuator element, the contact piece is situated in an intermediate position between its closed position and a position in which it bears against the closure plate.
  7. A device according to one of claims 3 and 4, characterized in that the flexible return blade is configured in such a manner that in the absence of a drive command applied to the actuator element, the contact piece comes to bear against the corresponding contact terminals.
  8. A device according to any one of claims 3 to 7, characterized in that said flexible return blade (5;5') is suitable for being secured directly to the actuator element (20).
  9. A device according to claim 8, characterized in that said flexible return blade and the actuator element cooperate via a connection of the rigid type.
  10. A device according to claim 8, characterized in that said flexible return blade and the actuator element cooperate via a connection of the non-rigid type.
  11. A device according to any one of claims 8 to 10, characterized in that said flexible return blade (5') includes an other tongue (25) to which the actuator element is fixed.
  12. A device according to any one of claims 3 to 7, characterized in that the actuator element is suitable for acting on the drive member via a flexible control blade (21) distinct from said return blade, said control blade including the tongue (22) suitable for bearing against the pusher of said drive member.
  13. A device according to any one of the preceding claims, characterized in that the actuator element has an axial top end (30) and an axial bottom end (31), the top end at least being connected to a flexible holding element (32).
  14. A device according to claim 13, excepted claim 9, characterized in that the bottom end of the actuator element is connected to a flexible holding element (33).
  15. A device according to any one of the preceding claims, having at least two drive members (57,60), characterized in that the device includes a flexible control blade (50;50') suitable for acting simultaneously or in alternation on said at least two drive members.
  16. A device according to claim 15, characterized in that the control blade (50) is configured as a return blade for the two drive members, the blade presenting two portions (51, 52) situated on either side of fixing regions (53) for fixing the return blade to stationary portions of the device, each of the two portions of the blade being secured to a respective drive member, and in that the actuator element is suitable for acting on one of said two portions so as to drive one of the two drive members towards the open position and the other towards the closed position.
  17. A device according to claim 15, characterized in that said control blade (50') has two portions situated on either side of regions for fixing the control blade to fixed portions of the device, each of said two portions of the blade being suitable for acting on a corresponding drive member (57;60), the actuator element being fixed to the control blade in one of said two portions, and in that each of the drive members is secured to a respective return blade (65) distinct from the control blade (50').
  18. A device according to any one of the preceding claims, characterized in that the flexible holding element is provided with a plurality of blades, each enabling a drive member or an actuator element to be fixed, the holding element presenting in particular a shape that is invariant on being turned through an angle of 2π/n, where n is an integer, about an axis of rotation perpendicular to the plane of the blades.
EP03290748A 2002-03-26 2003-03-25 Switching device for opening and connecting at least one electric line Expired - Lifetime EP1349187B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0203908A FR2837977A1 (en) 2002-03-26 2002-03-26 SWITCHING DEVICE TO OPEN AND CLOSE AT LEAST ONE ELECTRIC LINE
FR0203908 2002-03-28

Publications (2)

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EP1349187A1 EP1349187A1 (en) 2003-10-01
EP1349187B1 true EP1349187B1 (en) 2012-10-10

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EP03290748A Expired - Lifetime EP1349187B1 (en) 2002-03-26 2003-03-25 Switching device for opening and connecting at least one electric line

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US (1) US7015777B2 (en)
EP (1) EP1349187B1 (en)
JP (1) JP2003297167A (en)
DE (1) DE03290748T1 (en)
FR (1) FR2837977A1 (en)

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Publication number Priority date Publication date Assignee Title
JP5156595B2 (en) * 2008-11-21 2013-03-06 パナソニック株式会社 Electromagnetic relay
JP2012028253A (en) * 2010-07-27 2012-02-09 Fuji Electric Fa Components & Systems Co Ltd Contact mechanism and electromagnetic contactor using the same
JP6286391B2 (en) * 2015-06-04 2018-02-28 東芝テック株式会社 Pressure regulator
FR3041810B1 (en) * 2015-09-24 2018-11-16 Radiall Sa FRICTION-FREE SWITCHING DEVICE FOR OPENING AND CLOSING AN ELECTRIC LINE WITH IMPROVED IMPROVED MANEUVER

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CH276250A (en) * 1948-05-29 1951-06-30 Dreyfus Jean Albert Flexible and electrically conductive suspension device.
FR1309744A (en) 1962-01-08 1962-11-16 Plessey Co Ltd Spring contact set for relays
US4496806A (en) * 1981-01-30 1985-01-29 Omron Tateisi Electronics Co. Electric contact switching device
FR2522195A1 (en) * 1982-02-24 1983-08-26 Micronde Sa HYPERFREQUENCY INVERTER COAXIAL RELAY
US4839619A (en) 1988-07-28 1989-06-13 Tektronix, Inc. Relay for wideband signals
EP0618634B1 (en) * 1993-03-31 1998-07-29 Robert Bosch Gmbh Coaxial switch
JP3322442B2 (en) 1993-06-25 2002-09-09 松下電工株式会社 High frequency relay
JPH07211212A (en) 1994-01-26 1995-08-11 Matsushita Electric Works Ltd Relay
FR2717003B1 (en) * 1994-03-04 1996-04-12 Radiall Sa Switching device for opening and closing an electric line.
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DE19834215B4 (en) 1998-07-29 2004-07-15 Tyco Electronics Logistics Ag Electromagnetic relay
EP1047089B1 (en) * 1999-04-23 2006-01-18 Matsushita Electric Works, Ltd. Coaxial relay

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JP2003297167A (en) 2003-10-17
US7015777B2 (en) 2006-03-21
FR2837977A1 (en) 2003-10-03
DE03290748T1 (en) 2004-07-08
EP1349187A1 (en) 2003-10-01
US20040000980A1 (en) 2004-01-01

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