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EP1556873B1 - Electrical switching device, relay and electrical apparatus comprising same - Google Patents

Electrical switching device, relay and electrical apparatus comprising same Download PDF

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Publication number
EP1556873B1
EP1556873B1 EP03778439A EP03778439A EP1556873B1 EP 1556873 B1 EP1556873 B1 EP 1556873B1 EP 03778439 A EP03778439 A EP 03778439A EP 03778439 A EP03778439 A EP 03778439A EP 1556873 B1 EP1556873 B1 EP 1556873B1
Authority
EP
European Patent Office
Prior art keywords
contact
switching device
movable part
electrical
zone
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
EP03778439A
Other languages
German (de)
French (fr)
Other versions
EP1556873A1 (en
Inventor
Pierre Batteux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1556873A1 publication Critical patent/EP1556873A1/en
Application granted granted Critical
Publication of EP1556873B1 publication Critical patent/EP1556873B1/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
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H01H2001/545—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force having permanent magnets directly associated with the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H2036/0086—Movable or fixed contacts formed by permanent magnets

Definitions

  • the invention relates to an electrical switching device comprising at least one electrical contact that can be maintained in a stable position by magnetic means.
  • the invention also relates to an electromagnetic relay with at least two stable states comprising at least a first and a second electrical contact input, control inputs, and at least one such switching device.
  • the invention also relates to an electrical apparatus comprising at least a first and a second electrical contact input, and at least one such switching device.
  • Known switching devices integrated in particular in relays and electrical switching devices such as switches, comprise electrical contacts controlled in particular by a manual control member or an electromagnetic coil.
  • the electrical contacts comprise a fixed part and a moving part to open or close an electrical circuit. Maintaining the electrical contacts in an open or closed position is provided in some devices by a mechanism.
  • electromagnets are associated with magnets to maintain the contacts in stable positions.
  • FIG. 1 shows a bistable relay comprising a contact block 1 with a fixed part 2 having one or more pellets 3 of electrical contact, and a mobile part 4 comprising a flexible plate 5 carrying at least one pad 6 of electrical contact.
  • the contact block of FIG. 1 is an inverter with two electrical contacts connected to connection terminals 7.
  • the contact block 1 is actuated on its mobile part by a bistable electromagnetic device 8 comprising a fixed part 9 and a mobile part 10 mechanically connected. contact block audit.
  • the electromagnetic device 8 comprises a magnetic circuit 11 formed in the fixed part 9 by a magnetic material 12 and a permanent magnet 13, and in the moving part 10 by a pallet held by a spring 14.
  • An electromagnetic coil 15 wound on the magnetic material of the fixed part actuates the displacement of the movable part 10.
  • FIG. 2 shows a bistable relay comprising a contact block 1 similar to that of FIG. 1 actuated by an electromagnetic device 16 having a moving part 17 with a permanent magnet 18.
  • the fixed part generally comprises a first or a second magnetic circuit 19 and 20 controlled by electromagnetic coils 21 and 22 for moving the magnet to the first or second magnetic circuit.
  • the magnetic induction of said magnet makes it possible to keep the moving part in a stable state.
  • the magnetic circuit that holds the moving part with the magnet becomes a closed magnetic circuit and the other magnetic circuit is open.
  • Some devices of this type include a single electromagnetic control coil and different arrangements of the fixed part. Bistable devices moving a moving part carrying the magnet are described in particular in patents EP0272164B1 and FR2358006.
  • Known switching devices integrated in particular in bistable relays, can switch or cut small electrical currents in good conditions.
  • the known devices are generally bulky.
  • the contact blocks have a significant heating and the magnetic circuits must exert significant forces to move the moving parts.
  • Such switching devices are difficult can be integrated into small electrical devices that can be operated manually.
  • the document FR 2 184 111 describes a device according to the preamble of claim 1.
  • the object of the invention is to provide an electrical switching device that allows good electrical current conduction, good switching or interruption of electrical circuit and / or having dimensions or a reduced volume.
  • the invention also aims a relay and an electrical device comprising such a device.
  • the electromagnetic actuation means comprise at least one second electromagnetic coil wound on at least one third magnetizable element of the first part to act in attraction or repulsion on at least one second element magnetic element of the second movable portion and for effecting a stable change of state of said second movable portion.
  • the first and the second electromagnetic coils are intended to be controlled by electrical pulses to generate inverted magnetic fields effecting a repulsion and an attraction and to change the stable position of the second mobile part between a first and a second stable position closing at at least one electrical contact between a contact area of the first part and a contact area of the second movable part.
  • the first and the second electromagnetic coils are intended to be controlled by electrical pulses to generate magnetic fields of the same direction effecting two repulsions and to position the second mobile part in a third stable position where the contact areas of the second part mobile are not in electrical contact with the contact areas of the first part.
  • the first part comprises a third magnetizable element for maintaining the second mobile part in the second stable position.
  • the second mobile part comprises at least one permanent magnet disposed near a contact zone.
  • the second moving part is composed of a material comprising a
  • the permanently magnetized part or the permanent magnet have a magnetic induction greater than 1 teslas.
  • the second mobile part has an elongated shape that can pivot and comprises at least one contact zone and a magnetic attraction zone towards at least one end.
  • the second movable portion comprises at least one contact zone and a permanent magnet at a first end and at a second end.
  • the second movable portion has a flexible constitution that can be fixed by a point in a central area, and has at least one contact area and a magnet toward at least one end.
  • the second mobile part has at least one opening towards a central zone.
  • the first, second, third and fourth contact zones are electrically connected to electrical connection means.
  • the second movable part comprises a first permanent magnet towards the first end to cooperate with the first magnetizable element of the first part and a second permanent magnet towards the second end to cooperate with the third magnetizable element of the first part.
  • the switching device comprises holding means for holding the second moving part in a third stable position in which the contact formed by the first and the second contact zones and the contact formed by the third and the fourth contact areas are open.
  • the holding means comprise a flattened support member disposed on the first portion for receiving a first side of the second movable portion and pressure means for maintaining a central zone of the second movable portion against said element.
  • the pressure means are constituted by a spring.
  • the pressure means are constituted by a third permanent magnet and a fourth magnetizable element disposed on the support element and on the central zone of the mobile part.
  • the switching device comprises manual or mechanical actuating means acting on the second movable part to make it change stable state.
  • the second movable portion has a flexible constitution that can be secured by a point in a central area, and has at least one contact area and a two-ended magnet to form two contacts with contact areas. magnetizable elements of the first part, said two contacts being closable simultaneously.
  • At least one magnetic or magnetizable element makes it possible to drive through the material which constitutes it an electric current intended to circulate in at least one electrical contact.
  • An electromagnetic relay with at least two stable states comprising at least first and second electrical contact inputs, control inputs, and at least one switching device as defined above, the first contact input electrical connector being connected to the second moving part, the second electrical contact input being connected to a first contact area of the first part, and the control inputs being connected to at least a first electromagnetic coil disposed on at least a first magnetisable element of the first part.
  • the relay comprises at least a second electromagnetic coil connected to the control inputs and disposed on at least one third magnetizable element of the first part.
  • the relay has at least three stable states and has a third contact area connected to a third contact input and means for holding the second moving part in a third stable position where the electrical contacts between the first the second and third contact areas are open, the first and the second electromagnetic coils being intended to be controlled by attraction and repulsion to establish electrical contact and double repulsion to open the contacts.
  • the switching device comprises at least one second electromagnetic coil connected to the control circuit and disposed on at least one third magnetizable element of the first part.
  • the switching device has three stable states and comprises a third contact zone connected to a third contact input and means for maintaining the second moving part in a third stable position where the electrical contacts between the first, the second and the third contact areas are open, the first and second electromagnetic coils being intended to be controlled by attraction and repulsion to establish at least one electrical contact and double repulsion to open the contacts.
  • the electrical apparatus comprises manual or mechanical actuating means acting on the second mobile part to make it change stable state.
  • control circuit comprises at least one control input that can receive control signals.
  • control signals applied to the input may be bias signals, pulse duration signals and / or pulse number signals.
  • control circuit comprises at least one remote control input per communication bus for receiving control signals.
  • control circuit comprises remote remote control receiving means for receiving control signals.
  • control circuit comprises processing means for processing control signals and controlling the electromagnetic coils according to said signals.
  • processing means perform functions of remote switch, timer and / or controlled switch.
  • a first, preferably fixed, portion 30 comprises a first magnetizable element 31 and a first contact zone 32 associated with said first magnetizable element 31, and a second movable portion.
  • 33 comprises a second magnetic element 34 and a second contact zone 35 associated with said second magnetic element 34.
  • Said second mobile part 33 has at least a first stable position to maintain a first electrical contact 36 closed between the first and the second zone contact 32 and 35 and a second stable position for maintaining said first open electrical contact.
  • Actuating means 37 which can be electromagnetic and possibly manual or mechanical make it possible to act on the second mobile part to change its position.
  • the first or second magnetic member has at least one permanently magnetized portion for maintaining the first closed contact and exerting a contact pressure between the first and second contact areas.
  • the contact pressure is exerted by a magnetic attraction between the first and the second magnetic elements when the moving part is in its first stable position where the first contact 36 is closed.
  • the second magnetic element may be a magnet 38 disposed on the movable portion 33
  • the first magnetizable element 31 may be made of magnetizable material, for example soft iron.
  • the actuating means comprise a first electromagnetic coil 53 for acting on the magnet 38 of the second magnetic element of the moving part.
  • the first portion 30 comprises a third magnetizable element 39 for holding the second movable portion 33 in the second stable position.
  • a second magnet 40 disposed on the movable portion maintains in the second stable position by a magnetic attraction exerted with the third magnetizable element 39.
  • the switching device may comprise a second electrical contact 41 having a third contact zone 42 associated with the third element magnetizable 39 and a fourth contact zone 43 on the movable portion 33.
  • the actuating means comprise a second electromagnetic coil 54 for acting on the magnet 40 of the second magnetic element of the movable part.
  • the permanent magnets are disposed near the contact zones to ensure good contact pressure.
  • the permanently magnetized part or the permanent magnet have a magnetic induction greater than 1 tesla with a volume of less than 1 cubic millimeter (mm 3 ) for a nominal current in the contacts of the order of 1 ampere.
  • a device capable of operating at 10 amps may have a magnet less than 10 mm 3 .
  • magnets with an induction greater than 3 Tesla per mm 3 a switching device will have a magnet of the order of 3 mm 3 for 10 amperes.
  • the movable portion 33 has an elongated shape that is pivotable and has a contact zone and a permanent magnet at each end.
  • the first portion 30 includes the first magnetizable element 31 associated with a first contact zone 32, and a third element magnetizable 39 associated with a third contact zone 42
  • the second movable portion 33 comprises a second contact zone 35, towards a first end, intended to be in contact with the first contact zone 32 of the first part, and a fourth contact zone 43, towards a second end, intended to be in contact with the third contact zone 42 of the first part.
  • first and second contact areas 32 and 35 are held to form a closed contact and the third and fourth contact areas 42 and 43 form an open contact
  • the third and fourth contact areas 42 and 43 are held to form a closed contact and the first and second contact areas 32 and 35 form an open contact.
  • the first, the second, the third and fourth contact areas are electrically connected to electrical connection terminals through electrical conductors and / or the material of the magnetizable elements.
  • the use of magnetic or magnetizable elements associated with an electrical conduction function makes it possible to reduce the volume of the switching device.
  • the magnetic or magnetizable elements may be associated with electrical conductors in the same element or be used themselves as conductors.
  • a magnetic element can have two types of function, advantageously, magnetic type functions for maintaining in a stable position and to exert a contact pressure, and functions of the electric type for the electrical contact with the mobile part and for electrical conduction between connection terminals and said contact.
  • the first part comprises a first electrical conductor 45A associated with a first magnetizable element 31.
  • the first part comprises a third magnetizable element 39 and a second conductor 45B.
  • the embodiment of FIG. 4 shows a manual actuation device 50 for actuating the moving part 33 and making it change its stable position independently of the electromagnetic actuations operated by the coils 53 and 54 acting on the magnets 40 and 38.
  • the second movable part 33 comprises a first permanent magnet 51 towards the first end to cooperate with the first magnetizable element 31 of the first part and a second permanent magnet 52 towards the second end to cooperate with the third magnetizable element 39 of the first part.
  • the device of FIG. 5 comprises electromagnetic actuation means comprising a first electromagnetic coil 53 wound on the first magnetizable element 31 of the first part to act in attraction or repulsion on the second magnetic element of the second movable part 33 and effecting a stable state change of said moving part.
  • the electromagnetic actuation means comprise a second electromagnetic coil 54 wound on the third magnetizable element 39 of the first part to act in attraction or in repulsion on at least one second magnetic element of the second movable part and to make it change stable state said second movable part.
  • the coil 53 and the magnetizable element 31 cooperate with the magnet 51 and the coil 54 and the magnetizable element 39 cooperate with the magnet 52 to change state the movable portion 33.
  • the contact areas 32 and 35 form a closed contact while in a second position the contact areas 32 and 35 form an open contact and the contact areas 42 and 43 form a closed contact.
  • the first and second electromagnetic coils 53 and 54 are driven by electrical pulses to generate inverted magnetic fields effecting repulsion and attraction and changing the stable position of the second movable portion between a first and a second stable position. .
  • the switching device also comprises holding means 55 for holding the mobile part 33 in a third stable position in which the contact 36 formed by the first and the second contact zones 32 and 35 and the contact 41 formed by the third and fourth contact areas 42 and 43 are open.
  • the holding means comprise a support member 56 in the form of flat or abutment disposed on the first portion to receive a first side 57 of the second movable portion 33 and pressure means 58 to maintain a central zone 59 of the second moving part against the support member.
  • the pressure means are constituted by a spring.
  • the pressure means consist of a third permanent magnet 60 disposed on the central part of the mobile part and a fourth magnetizable element 61 arranged on the support element.
  • the first and the second electromagnetic coils are controlled by electrical pulses generating magnetic fields of the same direction effecting two repulsions.
  • manual or mechanical actuating means 50 act on the second moving part to make it change its stable state.
  • the magnet 60 cooperates with the fourth magnetizable element 61 preferably having a flat part to hold the moving part.
  • the contact areas 35 and 43 of the second moving part are not in electrical contact with the contact areas 32 and 42 of the first part.
  • FIGS. 8, 9 and 10 show a switching device comprising an actuation by electromagnetic coils and a manual actuating element 50.
  • two actuating means allow the position of the movable part 33 to be changed.
  • the moving part In FIG. the moving part is in its third stable position where the contacts 36 and 41 are open.
  • the first contact 36 is open and the second contact 41 is closed by an action on the manual actuating element 50 or by electrical pulses on the electromagnetic coils.
  • the coil 53 has been controlled to act in repulsion on the magnet 51, and the coil 54 is controlled to act in attraction on the magnet 52.
  • the first contact 36 is closed and the second contact 41 is opened by an action on the manual actuating element 50 or by electrical pulses on the electromagnetic coils.
  • the coil 54 has been controlled to act in repulsion on the magnet 52, and the coil 53 is controlled to act in attraction on the magnet 51.
  • FIG. 11 represents a switching device according to the invention intended in particular to form part of a small electrical appliance.
  • the first magnetizable element 31 and directly connect to a connection terminal 44 and it receives along its length the electromagnetic control coil 53, the first contact zone 32 at the end of the magnetizable element 31 protrudes from the coil 53.
  • the magnetizable element 31 also serves as a conductor between the contact area and the connection terminal.
  • the magnetizable element 31 has magnetic functions for controlling the moving part in being the core of the coil 53 and holds the moving part cooperating with the magnet 51, and fixed contact part functions by having a contact zone 32 and electrical conductor connecting the zone 32 to the terminal 44
  • Such an embodiment makes it possible to considerably reduce the size of the switching device.
  • the third magnetizable element 39 and the coil 54 are made and arranged in the same manner as the element 31 and the coil 53.
  • the fourth magnetizable element 61 can be produced in the same way as the first and third magnetizable elements 39. It comprises a contact zone which is in contact with the movable part 33 and cooperates with a magnet 60 in the central part of the movable part to ensure a contact pressure and the pivoting of the movable part and its holding in position.
  • the movable portion 33 may be made of conductive material such as copper with appropriate surface treatments to the electrical contact area. Permanent magnets 51, 52, and 60 disposed towards the ends and the central zone of the movable portion 33 are preferably glued or crimped onto the conductive material.
  • connections of the coils 53 and 54 and the contact conductors 45 can also be achieved by output pins or tongues 62 that can be welded to a printed circuit or receive electrical wires welded or connected by lugs.
  • a switching device is integrated into an electrical switching or switching device.
  • This electrical apparatus comprises a base 63 of insulating material for receiving and holding the various elements of the switching device.
  • it also comprises a manual actuator or 50 to act manually on the movable part.
  • the manual actuating member 50 may also be a mechanical actuator actuated in particular by a movement of an object, by a machine or a mechanism.
  • FIG. 13 represents a switching device with two or three stable positions intended to be mounted in particular on a printed circuit or to be part of an electrical apparatus such as a relay.
  • Conductors 45 of contact as well as the connections of the coils are terminated by pins or connecting tabs 62.
  • the conductors 45 are directly crimped on the magnetizable elements of the first part.
  • the fourth magnetizable element 61 also has the function of support element 56 for supporting the central part of the fixed part, in particular in its third stable position where the contacts are open, and an electrical conductor function 45.
  • inputs 62A correspond to electrical contact inputs and inputs 62B correspond to control inputs.
  • a first electrical contact input 62A is connected to the second movable portion through the fourth magnetizable element 61
  • a second electrical contact input 62A is connected to a first contact area 32 of the first portion through the first magnetizable element 31
  • a third electrical contact input 62A is connected to a third contact area 42 of the first portion through the third magnetizable element 39
  • the control inputs 62B are connected to the first and second electromagnetic coils 53 and 54 disposed on the first and the third magnetizable elements 31 and 39 of the first part.
  • FIGS. 14 and 15 represent views of a relay according to one embodiment of the invention, comprising a switching device according to FIG. 13.
  • the relay comprises a support 64, for example in the form of a housing, and a cover 65 enclosing said support. Passages disposed in the housing allow to pass electrical connection inputs 62.
  • Figure 14 shows an exploded view of the elements of the switching device.
  • the mounted relay is shown in the view of Figure 15 where the elements are in their place.
  • This view shows advantages of the invention, in particular the reduction of space and volume allowed by such an arrangement.
  • the grouping of electrical and magnetic functions in the same element makes it possible to achieve these advantages.
  • the relay of FIGS. 13, 14 and 15 may be a relay with two stable positions or with three positions depending on the control mode of the coils 53 and 54.
  • the first and second coils are controlled by attraction and repulsion to establish an electrical contact and double repulsion to open the two contacts.
  • FIG. 16 represents a diagram of an electrical apparatus comprising a switching device according to one embodiment of the invention and a control circuit 70.
  • the electrical apparatus has a first electrical contact input 71 connected to the second movable portion 33, and a second electrical contact input 72 connected to a first contact area 32 of the first portion through the first magnetizable element 31, and a third electrical contact input 73 connected to a third contact zone 42 of the first portion through the third magnetizable element.
  • the control circuit 70 is connected to first and second electromagnetic coils 53 and 54 respectively disposed on the first and third magnetizable elements 31 and 39 of the first portion. In the embodiment of FIG. 16, the coils 53 and 54 are connected in series to control the displacement of the moving part in attraction and repulsion.
  • the movable portion 33 may include magnets in the material that composes it. Manual or mechanical actuation means 50 can also act on the second mobile part to make it change stable state.
  • the control circuit 70 has control inputs 74 which can receive control signals.
  • the control signals applied to the control inputs 70 may in particular be polarization signals, pulse duration signals and / or pulse number signals.
  • the coils 53 and 54 are connected with the control circuit to the inputs 74.
  • the apparatus then receives control signals in the form of electrical pulses provided by a push button 75 connected. between the inputs 74 and a source the power supply 76, for example an electrical distribution network.
  • the control circuit can act on the coils in simple commands of switch or remote-controlled switch or, for example in more complex functions such as remote control, self-timer, or electric timer functions.
  • FIG. 18 is a diagram of an electrical apparatus comprising a stable three-position switching device such as that described for FIGS. 8 to 10 and a control circuit 70.
  • the coils 53 and 54 are connected to the control circuit. to be controlled by attraction and repulsion to establish at least one electrical contact 36 or 41 and double repulsion to open said electrical contacts.
  • a magnet 60 and a fourth magnetizable element 61 making it possible to keep the moving part in the open contact position.
  • FIG. 19 a diagram of a control circuit shows different possibilities of receiving control signals.
  • the control circuit 70 comprises a supply circuit connected between supply inputs 78 and a processing circuit 79.
  • the processing circuit 70 controls the coils 53 and 54 as a function of control signals received in particular on control inputs 74.
  • the processing circuit 70 may also include a remote control circuit connected to the processing circuit and receiving control signals provided through a communication bus 81 and / or a remote control receiver.
  • Figs. 20A, 20B, 20C, 21 and 23 show control signals that can be used by switching device control circuits according to embodiments of the invention.
  • a signal 90 of negative polarity can control the control circuit 70 to position the switching device in a first stable position or a first contact 36 is established.
  • a signal 91 of positive polarity can control the control circuit 70 to position the switching device in a second stable position or a second contact 41 is established.
  • a signal 92 having negative and positive polarities can control the control circuit 70 to position the switching device in a third stable position where the contacts 36 and 41 are open in particular by double repulsion commands on the coils 53 and 54.
  • Fig. 21 shows control signals 93 with pulse duration
  • Fig. 22 shows control signals 94 by pulse number.
  • FIG. 23 represents a particular embodiment of a second movable part 33 having a flexible constitution that can be fixed by a point 100 located in a central zone, and comprises at least one contact zone 35 and / or 43 and a magnet 51 and / or 52 to at least one end.
  • the second movable portion has one or two openings to a central area to enhance flexibility and movement between positions stable.
  • the body of the movable part may advantageously be constituted by a material such as brass or steel.
  • FIG. 24 represents a switching device comprising a second moving part according to FIG. 23.
  • the point 100 of the central zone is fixed directly on the support element 56.
  • the flexible constitution of the second moving part also allows to simultaneously close the two contacts 36 and 41.
  • the contacts can be opened or closed independently, in particular by electromagnetic controls.
  • a second movable portion 33 is composed of a material comprising a substantially permanent-magnetized part, for example a longitudinal magnet 103 comprising contact pads at each end.
  • the areas of electrical contact can be made by appropriate metal deposits or by the addition of thin contact pads.
  • the magnets can have various shapes and be fixed on fixed or movable parts of the magnetic elements.
  • the magnetic or magnetizable elements may also be covered with material depending on the intensity of the current that must pass through the contacts. The current can reach several amperes in a small volume.
  • Electrical appliances that can include a switching device according to the invention can be very diverse, for example, low or high power switches, circuit breakers, auxiliary contacts, contacts controlled by mechanisms or manually.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Relay Circuits (AREA)
  • Electromagnets (AREA)
  • Contacts (AREA)
  • Control Of Electric Motors In General (AREA)
  • Electronic Switches (AREA)

Abstract

The electrical switching device comprises at least a first part comprising at least a first magnetizable element and a first contact zone associated with said first magnetizable element, and at least a second movable part comprising at least a second magnetic element and a second contact zone associated with said second magnetic element. The first or second magnetic element comprises at least one permanent magnetization part to keep the first electrical contact closed and to exert a contact pressure between the first and second contact zones when the movable part is in a first stable position. The electromagnetic relay and/or electrical apparatus comprise electrical contact inputs and control inputs connected to a switching device comprising electromagnetic control coils.

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention concerne un dispositif de commutation électrique comportant au moins un contact électrique pouvant être maintenu dans une position stable par des moyens magnétiques. L'invention concerne aussi un relais électromagnétique à au moins deux états stables comportant au moins une première et une seconde entrée de contact électrique, des entrées de commande, et au moins un tel dispositif de commutation. L'invention concerne aussi un appareil électrique comportant au moins une première et une seconde entrée de contact électrique, et au moins un tel dispositif de commutation.The invention relates to an electrical switching device comprising at least one electrical contact that can be maintained in a stable position by magnetic means. The invention also relates to an electromagnetic relay with at least two stable states comprising at least a first and a second electrical contact input, control inputs, and at least one such switching device. The invention also relates to an electrical apparatus comprising at least a first and a second electrical contact input, and at least one such switching device.

ETAT DE LA TECHNIQUESTATE OF THE ART

Les dispositifs de commutation connus, intégrés notamment dans des relais et des appareils de coupure électrique tels que des interrupteurs, comportent des contacts électriques commandés notamment par un organe de commande manuelle ou une bobine électromagnétique. Généralement, les contacts électriques comportent une partie fixe et une partie mobile pour ouvrir ou fermé un circuit électrique. Le maintien des contacts électriques dans une position ouverte ou fermée est assuré dans certains appareils par un mécanisme. Dans des relais bistables, des électroaimants sont associés à des aimants pour maintenir les contacts dans des positions stables.Known switching devices, integrated in particular in relays and electrical switching devices such as switches, comprise electrical contacts controlled in particular by a manual control member or an electromagnetic coil. Generally, the electrical contacts comprise a fixed part and a moving part to open or close an electrical circuit. Maintaining the electrical contacts in an open or closed position is provided in some devices by a mechanism. In bistable relays, electromagnets are associated with magnets to maintain the contacts in stable positions.

La figure 1 montre un relais bistable comportant un bloc contact 1 avec une partie fixe 2 ayant une ou plusieurs pastilles 3 de contact électrique, et une partie mobile 4 comportant une lame flexible 5 portant au moins une pastille 6 de contact électrique. Le bloc contact de la figue 1 est un inverseur à deux contacts électriques connecté à des bornes de connexion 7. Le bloc contact 1 est actionné sur sa partie mobile par un dispositif électromagnétique bistable 8 comportant une partie fixe 9 et une partie mobile 10 reliée mécaniquement audit bloc contact. Le dispositif électromagnétique 8 comporte un circuit magnétique 11 formé dans la partie fixe 9 par un matériau magnétique 12 et un aimant permanent 13, et dans la partie mobile 10 par une palette maintenue par un ressort 14. Une bobine électromagnétique 15 enroulée sur le matériau magnétique de la partie fixe actionne le déplacement de la partie mobile 10. Si un courant circule dans un premier sens dans la bobine 15 la partie mobile est attirée vers la partie fixe et le circuit magnétique se ferme, l'aimant permanent 13 maintient alors le circuit magnétique fermé même si le courant dans la bobine est interrompu. Si une impulsion de courant est injectée dans un second sens opposé au premier, l'action de l'aimant est annulée par un champ magnétique inverse généré par la bobine, la palette est alors rappelée par le ressort 14 dans une position de circuit magnétique ouvert. La force de l'aimant 13 n'est pas suffisante pour attirer la palette retenue par le ressort dans la position de circuit ouvert. Un relais bistable de ce type est décrit notamment dans le brevet EP0686989B1.FIG. 1 shows a bistable relay comprising a contact block 1 with a fixed part 2 having one or more pellets 3 of electrical contact, and a mobile part 4 comprising a flexible plate 5 carrying at least one pad 6 of electrical contact. The contact block of FIG. 1 is an inverter with two electrical contacts connected to connection terminals 7. The contact block 1 is actuated on its mobile part by a bistable electromagnetic device 8 comprising a fixed part 9 and a mobile part 10 mechanically connected. contact block audit. The electromagnetic device 8 comprises a magnetic circuit 11 formed in the fixed part 9 by a magnetic material 12 and a permanent magnet 13, and in the moving part 10 by a pallet held by a spring 14. An electromagnetic coil 15 wound on the magnetic material of the fixed part actuates the displacement of the movable part 10. If a current flows in a first direction in the coil 15 the moving part is attracted to the fixed part and the magnetic circuit closes, the permanent magnet 13 then keeps the magnetic circuit closed even if the current in the coil is interrupted. If a current pulse is injected in a second direction opposite the first, the action of the magnet is canceled by an inverse magnetic field generated by the coil, the pallet is then returned by the spring 14 in an open magnetic circuit position . The force of the magnet 13 is not sufficient to draw the pallet held by the spring into the open circuit position. A bistable relay of this type is described in particular in patent EP0686989B1.

La figure 2 montre un relais bistable comportant un bloc contact 1 semblable à celui de la figure 1 actionné par un dispositif électromagnétique 16 ayant une partie mobile 17 à aimant permanent 18. La partie fixe comporte généralement un premier ou un second circuits magnétiques 19 et 20 commandés par des bobines électromagnétiques 21 et 22 permettant de déplacer l'aimant vers le premier ou le second circuit magnétique. Lorsque l'aimant est en contact avec un des circuits magnétiques, l'induction magnétique dudit aimant permet de maintenir la partie mobile dans un état stable. Ainsi, le circuit magnétique qui retient la partie mobile avec l'aimant devient un circuit magnétique fermé et l'autre circuit magnétique est ouvert. Certains dispositifs de ce type comportent une seule bobine électromagnétique de commande et des dispositions différentes de la partie fixe. Des dispositifs bistables à déplacement d'une partie mobile portant l'aimant sont décrits notamment dans les brevets EP0272164B1 et FR2358006.FIG. 2 shows a bistable relay comprising a contact block 1 similar to that of FIG. 1 actuated by an electromagnetic device 16 having a moving part 17 with a permanent magnet 18. The fixed part generally comprises a first or a second magnetic circuit 19 and 20 controlled by electromagnetic coils 21 and 22 for moving the magnet to the first or second magnetic circuit. When the magnet is in contact with one of the magnetic circuits, the magnetic induction of said magnet makes it possible to keep the moving part in a stable state. Thus, the magnetic circuit that holds the moving part with the magnet becomes a closed magnetic circuit and the other magnetic circuit is open. Some devices of this type include a single electromagnetic control coil and different arrangements of the fixed part. Bistable devices moving a moving part carrying the magnet are described in particular in patents EP0272164B1 and FR2358006.

Les dispositifs commutation connus, intégrés notamment dans de relais bistables, permettent de commuter ou de couper de faibles courants électriques dans de bonnes conditions. Lorsque les courant à commuter sont forts, par exemple de plusieurs Ampères, les dispositifs connus sont généralement volumineux. De plus, les blocs contacts ont un échauffement important et les circuits magnétiques doivent exercer des forces importantes pour déplacer les partie mobiles. De tels dispositifs de commutation sont difficilement intégrables dans des appareils électriques de faibles dimensions pouvant être actionnés manuellement. Le document FR 2 184 111 décrit un dispositif selon le préambule de la revendication 1.Known switching devices, integrated in particular in bistable relays, can switch or cut small electrical currents in good conditions. When the currents to be switched are strong, for example of several Amperes, the known devices are generally bulky. In addition, the contact blocks have a significant heating and the magnetic circuits must exert significant forces to move the moving parts. Such switching devices are difficult can be integrated into small electrical devices that can be operated manually. The document FR 2 184 111 describes a device according to the preamble of claim 1.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a pour but un dispositif de commutation électrique permettant une bonne conduction de courant électrique, une bonne commutation ou interruption de circuit électrique et/ou ayant des dimensions ou un volume réduit. L'invention a aussi pour but un relais et un appareil électrique comportant un tel dispositif.The object of the invention is to provide an electrical switching device that allows good electrical current conduction, good switching or interruption of electrical circuit and / or having dimensions or a reduced volume. The invention also aims a relay and an electrical device comprising such a device.

Un dispositif de commutation selon l'invention comporte :

  • au moins une première partie comportant au moins un premier élément magnétisable et une première zone de contact associée audit premier élément magnétisable,
  • au moins une seconde partie mobile comportant au moins un second élément magnétique et une seconde zone de contact associée audit second élément magnétique, ladite seconde partie mobile ayant au moins une première position stable pour maintenir un premier contact électrique fermé entre la première et la seconde zones de contact et une seconde position stable pour maintenir ledit premier contact électrique ouvert, et
  • des moyens d'actionnement électromagnétiques agissant sur la seconde partie mobile pour la faire changer de position et comportant au moins une première bobine électromagnétique enroulée sur au moins un premier élément magnétisable de la première partie pour agir en attraction ou en répulsion sur au moins un second élément magnétique de la seconde partie mobile et pour effectuer un changement d'état stable de ladite seconde partie mobile,
le premier ou le second élément magnétique comportant au moins une partie à aimantation permanente pour maintenir le premier contact électrique fermé et exercer une pression de contact entre la première et la seconde zones de contact par une attraction magnétique exercée entre le premier et le second éléments magnétiques lorsque la partie mobile est dans sa première position stable.A switching device according to the invention comprises:
  • at least a first portion comprising at least a first magnetizable element and a first contact zone associated with said first magnetizable element,
  • at least a second movable portion having at least a second magnetic element and a second contact zone associated with said second magnetic element, said second movable portion having at least a first stable position for maintaining a first closed electrical contact between the first and second zones; contact and a second stable position to maintain said first open electrical contact, and
  • electromagnetic actuating means acting on the second movable part to change its position and comprising at least a first electromagnetic coil wound on at least a first magnetizable element of the first part to act in attraction or repulsion on at least a second magnetic element of the second moving part and for effecting a stable change of state of said second moving part,
the first or second magnetic member having at least one permanently magnetized portion for maintaining the first closed electrical contact and exerting contact pressure between the first and second contact areas by magnetic attraction exerted between the first and second magnetic members; when the moving part is in its first stable position.

Avantageusement, les moyens d'actionnement électromagnétique comportent au moins une seconde bobine électromagnétique enroulée sur au moins un troisième élément magnétisable de la première partie pour agir en attraction ou en répulsion sur au moins un second élément magnétique de la seconde partie mobile et pour effectuer un changement d'état stable de ladite seconde partie mobile.Advantageously, the electromagnetic actuation means comprise at least one second electromagnetic coil wound on at least one third magnetizable element of the first part to act in attraction or repulsion on at least one second element magnetic element of the second movable portion and for effecting a stable change of state of said second movable portion.

Avantageusement, la première et la seconde bobines électromagnétiques sont destinées à être commandées par des impulsions électriques pour générer des champs magnétiques inversés effectuant une répulsion et une attraction et faire changer la position stable de la seconde partie mobile entre une première une seconde position stable fermant au moins un contact électrique entre une zone de contact de la première partie et une zone de contact de la seconde partie mobile.Advantageously, the first and the second electromagnetic coils are intended to be controlled by electrical pulses to generate inverted magnetic fields effecting a repulsion and an attraction and to change the stable position of the second mobile part between a first and a second stable position closing at at least one electrical contact between a contact area of the first part and a contact area of the second movable part.

Avantageusement, la première et la seconde bobines électromagnétiques sont destinées à être commandées par des impulsions électriques pour générer des champs magnétiques de même sens effectuant deux répulsions et pour positionner la seconde partie mobile dans une troisième position stable où les zones de contacts de la seconde partie mobile ne sont pas en contact électrique avec les zones de contact de la première partie.Advantageously, the first and the second electromagnetic coils are intended to be controlled by electrical pulses to generate magnetic fields of the same direction effecting two repulsions and to position the second mobile part in a third stable position where the contact areas of the second part mobile are not in electrical contact with the contact areas of the first part.

Avantageusement, la première partie comporte un troisième élément magnétisable pour maintenir la seconde partie mobile dans la seconde position stable.Advantageously, the first part comprises a third magnetizable element for maintaining the second mobile part in the second stable position.

Dans un mode de réalisation préférentiel, la seconde partie mobile comporte au moins un aimant permanent disposé à proximité d'une zone de contact.In a preferred embodiment, the second mobile part comprises at least one permanent magnet disposed near a contact zone.

Avantageusement, la seconde partie mobile est composée d'un matériau comportant uneAdvantageously, the second moving part is composed of a material comprising a

De préférence, la partie à aimantation permanente ou l'aimant permanent ont une induction magnétique supérieure à 1 teslas.Preferably, the permanently magnetized part or the permanent magnet have a magnetic induction greater than 1 teslas.

Avantageusement, la seconde partie mobile a une forme allongée pouvant pivoter et comporte au moins une zone de contact et une zone d'attraction magnétique vers au moins une extrémité. De préférence, la seconde partie mobile comporte au moins une zone de contact et un aimant permanent à une première extrémité et à une seconde extrémité.Advantageously, the second mobile part has an elongated shape that can pivot and comprises at least one contact zone and a magnetic attraction zone towards at least one end. Preferably, the second movable portion comprises at least one contact zone and a permanent magnet at a first end and at a second end.

Dans un mode de réalisation particulier, la seconde partie mobile a une constitution flexible pouvant être fixée par un point situé dans une zone centrale, et comporte au moins une zone de contact et un aimant vers au moins une extrémité. De préférence, la seconde partie mobile comporte au moins une ouverture vers une zone centrale.In a particular embodiment, the second movable portion has a flexible constitution that can be fixed by a point in a central area, and has at least one contact area and a magnet toward at least one end. Preferably, the second mobile part has at least one opening towards a central zone.

Dans un mode de réalisation préférentiel :

  • la première partie comporte le premier élément magnétisable associé à une première zone de contact et un troisième élément magnétisable associé à une troisième zone de contact, et
  • la seconde partie mobile comporte une seconde zone de contact vers une première extrémité destinée à être en contact avec la première zone de contact de la première partie, et une quatrième zone de contact vers une seconde extrémité destinée à être en contact avec la troisième zone de contact de la première partie,
dans une première position stable de la partie mobile, la première et la seconde zones de contact sont maintenues pour former un contact fermé et la troisième et la quatrième zones de contact forment un contact ouvert, et dans une seconde position stable de la partie mobile, la troisième et la quatrième zones de contact sont maintenues pour former un contact fermé et la première et la seconde zones de contact forment un contact ouvert.In a preferred embodiment:
  • the first part comprises the first magnetizable element associated with a first contact zone and a third magnetizable element associated with a third contact zone, and
  • the second moving part comprises a second contact zone towards a first end intended to be in contact with the first contact area of the first part, and a fourth contact area towards a second end intended to be in contact with the third area of contact. contact of the first part,
in a first stable position of the movable part, the first and the second contact areas are held to form a closed contact and the third and fourth contact areas form an open contact, and in a second stable position of the movable part, the third and fourth contact areas are held to form a closed contact and the first and second contact areas form an open contact.

De préférence, la première, la seconde, la troisième et la quatrième zones de contact sont reliées électriquement à des moyens de raccordement électriques.Preferably, the first, second, third and fourth contact zones are electrically connected to electrical connection means.

Avantageusement, la seconde partie mobile comporte un premier aimant permanent vers la première extrémité pour coopérer avec le premier élément magnétisable de la première partie et un second aimant permanent vers la seconde extrémité pour coopérer avec le troisième élément magnétisable de la première partie.Advantageously, the second movable part comprises a first permanent magnet towards the first end to cooperate with the first magnetizable element of the first part and a second permanent magnet towards the second end to cooperate with the third magnetizable element of the first part.

Dans un mode de réalisation préférentiel, le dispositif de commutation comporte des moyens de maintien pour maintenir la seconde partie mobile dans une troisième position stable dans laquelle le contact formé par la première et la seconde zones de contact et le contact formé par la troisième et la quatrième zones de contact sont ouverts.In a preferred embodiment, the switching device comprises holding means for holding the second moving part in a third stable position in which the contact formed by the first and the second contact zones and the contact formed by the third and the fourth contact areas are open.

De préférence, les moyens de maintien comportent un élément de support en forme de méplat disposé sur la première partie pour recevoir un premier coté de la seconde partie mobile et des moyens de pression pour maintenir une zone centrale de la seconde partie mobile contre ledit élément de support. Par exemple, les moyens de pression sont constitués par un ressort.Preferably, the holding means comprise a flattened support member disposed on the first portion for receiving a first side of the second movable portion and pressure means for maintaining a central zone of the second movable portion against said element. support. For example, the pressure means are constituted by a spring.

De préférence, les moyens de pression sont constitués par un troisième aimant permanent et un quatrième élément magnétisable disposés sur l'élément de support et sur la zone centrale de la partie mobile.Preferably, the pressure means are constituted by a third permanent magnet and a fourth magnetizable element disposed on the support element and on the central zone of the mobile part.

Dans un mode de réalisation préférentiel, le dispositif de commutation comporte des moyens d'actionnement manuels ou mécaniques agissant sur la seconde partie mobile pour la faire changer d'état stable.In a preferred embodiment, the switching device comprises manual or mechanical actuating means acting on the second movable part to make it change stable state.

Dans un mode de réalisation particulier, la seconde partie mobile a une constitution flexible pouvant être fixée par un point situé dans une zone centrale, et comporte au moins une zone de contact et un aimant à deux extrémités pour former deux contacts avec des zones de contact d'éléments magnétisables de la première partie, lesdits deux contacts pouvant être fermés simultanément.In a particular embodiment, the second movable portion has a flexible constitution that can be secured by a point in a central area, and has at least one contact area and a two-ended magnet to form two contacts with contact areas. magnetizable elements of the first part, said two contacts being closable simultaneously.

Avantageusement, au moins un élément magnétique ou magnétisable permet de conduire à travers le matériau qui le constitue un courant électrique destiné à circuler dans au moins un contact électrique.Advantageously, at least one magnetic or magnetizable element makes it possible to drive through the material which constitutes it an electric current intended to circulate in at least one electrical contact.

Un relais électromagnétique selon l'invention à au moins deux états stables comportant au moins une première et une seconde entrées de contact électrique, des entrées de commande, et au moins un dispositif de commutation tel que défini ci-dessus, la première entrée de contact électrique étant connectée à la seconde partie mobile, la seconde entrée de contact électrique étant connectée à une première zone de contact de la première partie, et les entrées de commande étant connectées à au moins une première bobine électromagnétique disposée sur au moins un premier élément magnétisable de la première partie.An electromagnetic relay according to the invention with at least two stable states comprising at least first and second electrical contact inputs, control inputs, and at least one switching device as defined above, the first contact input electrical connector being connected to the second moving part, the second electrical contact input being connected to a first contact area of the first part, and the control inputs being connected to at least a first electromagnetic coil disposed on at least a first magnetisable element of the first part.

Dans un mode de réalisation préférentiel, le relais comporte au moins une seconde bobine électromagnétique connectée aux entrées de commande et disposée sur au moins un troisième élément magnétisable de la première partie.In a preferred embodiment, the relay comprises at least a second electromagnetic coil connected to the control inputs and disposed on at least one third magnetizable element of the first part.

Dans un autre mode de réalisation, le relais a au moins trois états stables et comporte une troisième zone de contact connectée à une troisième entrée de contact et des moyens pour maintenir la seconde partie mobile dans une troisième position stable où les contacts électriques entre la première, la seconde et la troisième zones de contact sont ouverts, la première et la seconde bobines électromagnétiques étant destinées à être commandées en attraction et répulsion pour établir un contact électrique et en double répulsion pour ouvrir les contacts.In another embodiment, the relay has at least three stable states and has a third contact area connected to a third contact input and means for holding the second moving part in a third stable position where the electrical contacts between the first the second and third contact areas are open, the first and the second electromagnetic coils being intended to be controlled by attraction and repulsion to establish electrical contact and double repulsion to open the contacts.

Un appareil électrique selon l'invention, comportant au moins une première et une seconde entrée de contact électrique, comporte :

  • au moins un dispositif de commutation tel que défini ci-dessus à au moins deux positions stables, la première entrée de contact électrique étant connectée à la seconde partie mobile, la seconde entrée de contact électrique étant connectée à une première zone de contact de la première partie, et
  • un circuit de commande connecté à au moins une première bobine électromagnétique disposée sur un premier élément magnétisable de la première partie.
An electrical apparatus according to the invention, comprising at least a first and a second electrical contact input, comprises:
  • at least one switching device as defined above at at least two stable positions, the first electrical contact input being connected to the second moving part, the second electrical contact input being connected to a first contact zone of the first part, and
  • a control circuit connected to at least a first electromagnetic coil disposed on a first magnetizable element of the first portion.

Dans un mode de réalisation préférentiel, le dispositif de commutation comporte au moins une seconde bobine électromagnétique connectée au circuit de commande et disposée sur au moins un troisième élément magnétisable de la première partie.In a preferred embodiment, the switching device comprises at least one second electromagnetic coil connected to the control circuit and disposed on at least one third magnetizable element of the first part.

Avantageusement, le dispositif de commutation a trois états stables et comporte une troisième zone de contact connectée à une troisième entrée de contact et des moyens pour maintenir la seconde partie mobile dans une troisième position stable où les contacts électriques entre la première, la seconde et la troisième zones de contact sont ouverts, la première et la seconde bobines électromagnétiques étant destinées à être commandées en attraction et répulsion pour établir au moins un contact électrique et en double répulsion pour ouvrir les contacts.Advantageously, the switching device has three stable states and comprises a third contact zone connected to a third contact input and means for maintaining the second moving part in a third stable position where the electrical contacts between the first, the second and the third contact areas are open, the first and second electromagnetic coils being intended to be controlled by attraction and repulsion to establish at least one electrical contact and double repulsion to open the contacts.

Dans un mode de réalisation préférentiel, l'appareil électrique comporte des moyens d'actionnement manuels ou mécaniques agissant sur la seconde partie mobile pour la faire changer d'état stable.In a preferred embodiment, the electrical apparatus comprises manual or mechanical actuating means acting on the second mobile part to make it change stable state.

Avantageusement, le circuit de commande comporte au moins une entrée de commande pouvant recevoir des signaux de commande.Advantageously, the control circuit comprises at least one control input that can receive control signals.

Avantageusement, les signaux de commande appliqués à l'entrée peuvent être des signaux de polarisation, des signaux de durée d'impulsion et/ou des signaux de nombre d'impulsions.Advantageously, the control signals applied to the input may be bias signals, pulse duration signals and / or pulse number signals.

Avantageusement, le circuit de commande comporte au moins une entrée de télécommande par bus de communication pour recevoir des signaux de commande.Advantageously, the control circuit comprises at least one remote control input per communication bus for receiving control signals.

Avantageusement, le circuit de commande comporte des moyens de réception de télécommande à distance pour recevoir des signaux de commande.Advantageously, the control circuit comprises remote remote control receiving means for receiving control signals.

Avantageusement, le circuit de commande comporte des moyens de traitement pour traiter des signaux de commande et commander les bobines électromagnétiques en fonction desdits signaux. De préférence, les moyens de traitement effectuent des fonctions de télérupteur, de minuterie et/ou d'interrupteur commandé.Advantageously, the control circuit comprises processing means for processing control signals and controlling the electromagnetic coils according to said signals. Preferably, the processing means perform functions of remote switch, timer and / or controlled switch.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre, de modes particuliers de réalisation de l'invention, donnés à titre d'exemples non limitatifs, et représentés aux dessins annexés sur lesquels :

  • les figures 1 et 2 représentent des dispositifs de commutation connus de relais bistables de d'état de la technique ;
  • la figure 3 représente un dispositif de commutation selon un premier mode de réalisation de l'invention à deux positions stables ;
  • la figure 4 représente un dispositif commutation selon une variante du mode de réalisation de la figure 3 ;
  • la figure 5 représente un dispositif de commutation selon un second mode de réalisation de l'invention à trois positions stables ;
  • la figure 6 représente un dispositif de commutation selon un troisième mode de réalisation de l'invention à trois positions stables ;
  • la figure 7 représente un dispositif de commutation selon un quatrième mode de réalisation de l'invention à trois positions stables ;
  • les figures 8, 9 et 10 représentent trois positions d'un dispositif de commutation selon un mode de réalisation de l'invention à trois positions stables ;
  • la figure 11 représente un dispositif de commutation selon l'invention destiné à faire partie d'un appareil électrique ;
  • la figure 12 représente un appareil électrique comportant un dispositif de commutation selon un mode de réalisation de l'invention pouvant être commandé par une commande manuelle ou des bobines de commande d'électromagnétiques ;
  • la figure 13 représente un dispositif de commutation selon un mode de réalisation de l'invention à deux ou trois positions stables destiné à être monté notamment sur un circuit imprimé ou faire partie d'un appareil électrique tel qu'un relais ;
  • les figures 14, et 15 représentent des vues d'un relais selon un mode de réalisation l'invention comportant un dispositif de commutation selon la figure 13;
  • la figure 16 représente schéma d'un appareil électrique comportant un dispositif de commutation selon un mode de réalisation de l'invention et un circuit de commande ;
  • la figure 17 représente un schéma de la commande d'un dispositif de commutation selon un mode de réalisation de l'invention ;
  • la figure 18 représente un schéma d'un appareil électrique comportant un dispositif de commutation à trois positions stables selon un mode de réalisation de l'invention et un circuit de commande ;
  • la figure 19 représente un schéma d'un circuit de commande ;
  • les figures 20A, 20B, 20C, 21 et 23 représentent des signaux de commande pouvant être utilisés par des circuits de commande de dispositifs de commutation selon des modes de réalisation de l'invention ;
  • la figure 23 représente un premier mode de réalisation particulier d'une partie mobile d'un dispositif selon un mode de réalisation de l'invention ;
  • la figure 24 représente un dispositif de commutation selon un mode de réalisation de l'invention comportant une partie mobile selon la figure 23 ;
  • la figure 25 représente un second mode de réalisation particulier d'une partie mobile d'un dispositif selon un mode de réalisation de l'invention.
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention, given by way of non-limiting examples, and represented in the accompanying drawings in which:
  • Figures 1 and 2 show switching devices known bistable relay of prior art;
  • FIG. 3 represents a switching device according to a first embodiment of the invention with two stable positions;
  • FIG. 4 represents a switching device according to a variant of the embodiment of FIG. 3;
  • FIG. 5 represents a switching device according to a second embodiment of the invention with three stable positions;
  • FIG. 6 represents a switching device according to a third embodiment of the invention with three stable positions;
  • FIG. 7 represents a switching device according to a fourth embodiment of the invention with three stable positions;
  • Figures 8, 9 and 10 show three positions of a switching device according to one embodiment of the invention at three stable positions;
  • FIG. 11 represents a switching device according to the invention intended to form part of an electrical apparatus;
  • FIG. 12 represents an electrical apparatus comprising a switching device according to an embodiment of the invention that can be controlled by manual control or electromagnetic control coils;
  • FIG. 13 represents a switching device according to one embodiment of the invention with two or three stable positions intended to be mounted in particular on a printed circuit or to be part of an electrical apparatus such as a relay;
  • FIGS. 14 and 15 represent views of a relay according to an embodiment of the invention comprising a switching device according to FIG. 13;
  • FIG. 16 is a diagram of an electrical apparatus comprising a switching device according to one embodiment of the invention and a control circuit;
  • FIG. 17 represents a diagram of the control of a switching device according to one embodiment of the invention;
  • FIG. 18 is a diagram of an electrical apparatus comprising a switching device with three stable positions according to one embodiment of the invention and a control circuit;
  • Fig. 19 shows a diagram of a control circuit;
  • Figs. 20A, 20B, 20C, 21 and 23 show control signals that can be used by switching device control circuits according to embodiments of the invention;
  • FIG. 23 represents a first particular embodiment of a mobile part of a device according to one embodiment of the invention;
  • FIG. 24 represents a switching device according to one embodiment of the invention comprising a mobile part according to FIG. 23;
  • FIG. 25 represents a second particular embodiment of a mobile part of a device according to one embodiment of the invention.

DESCRIPTION DETAILLEE DE MODES DE REALISATION PREFERESDETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Dans un dispositif selon un mode de réalisation de l'invention représenter sur la figure 3, une première partie 30 de préférence fixe comporte un premier élément magnétisable 31 et une première zone de contact 32 associée audit premier élément magnétisable 31, et une seconde partie mobile 33 comporte un second élément magnétique 34 et une seconde zone de contact 35 associée audit second élément magnétique 34. La dite seconde partie mobile 33 a au moins une première position stable pour maintenir un premier contact électrique 36 fermé entre la première et la seconde zone de contact 32 et 35 et une seconde position stable pour maintenir ledit premier contact électrique ouvert. Des moyens d'actionnement 37 pouvant être électromagnétiques et éventuellement manuels ou mécaniques permettent d'agir sur la seconde partie mobile pour la faire changer de position. Le premier ou le second élément magnétique comporte au moins une partie à aimantation permanente pour maintenir le premier contact fermé et exercer une pression de contact entre la première et la seconde zones de contact. La pression de contact est exercée par une attraction magnétique entre le premier et le second éléments magnétiques lorsque la partie mobile est dans sa première position stable où le premier contact 36 est fermé. Par exemple, le second élément magnétique peut être un aimant 38 disposé sur la partie mobile 33, le premier élément magnétisable 31 pouvant être réalisé en matériau magnétisable, par exemple en fer doux. Dans un mode de réalisation préféré, les moyens d'actionnement comportent une première bobine électromagnétique 53 pour agir sur l'aimant 38 du second élément magnétique de la partie mobile.In a device according to one embodiment of the invention shown in FIG. 3, a first, preferably fixed, portion 30 comprises a first magnetizable element 31 and a first contact zone 32 associated with said first magnetizable element 31, and a second movable portion. 33 comprises a second magnetic element 34 and a second contact zone 35 associated with said second magnetic element 34. Said second mobile part 33 has at least a first stable position to maintain a first electrical contact 36 closed between the first and the second zone contact 32 and 35 and a second stable position for maintaining said first open electrical contact. Actuating means 37 which can be electromagnetic and possibly manual or mechanical make it possible to act on the second mobile part to change its position. The first or second magnetic member has at least one permanently magnetized portion for maintaining the first closed contact and exerting a contact pressure between the first and second contact areas. The contact pressure is exerted by a magnetic attraction between the first and the second magnetic elements when the moving part is in its first stable position where the first contact 36 is closed. For example, the second magnetic element may be a magnet 38 disposed on the movable portion 33, the first magnetizable element 31 may be made of magnetizable material, for example soft iron. In a preferred embodiment, the actuating means comprise a first electromagnetic coil 53 for acting on the magnet 38 of the second magnetic element of the moving part.

Dans le mode de réalisation de la figure 3, la première partie 30 comporte un troisième élément magnétisable 39 pour maintenir la seconde partie mobile 33 dans la seconde position stable. Un second aimant 40 disposé sur la partie mobile assure le maintien dans la seconde position stable par une attraction magnétique exercée avec le troisième élément magnétisable 39. Le dispositif commutation peut comporter un second contact électrique 41 comportant une troisième zone de contact 42 associé au troisième élément magnétisable 39 et une quatrième zone de contact 43 sur la partie mobile 33. Dans ce cas, les moyens d'actionnement comportent une seconde bobine électromagnétique 54 pour agir sur l'aimant 40 du second élément magnétique de la partie mobile.In the embodiment of FIG. 3, the first portion 30 comprises a third magnetizable element 39 for holding the second movable portion 33 in the second stable position. A second magnet 40 disposed on the movable portion maintains in the second stable position by a magnetic attraction exerted with the third magnetizable element 39. The switching device may comprise a second electrical contact 41 having a third contact zone 42 associated with the third element magnetizable 39 and a fourth contact zone 43 on the movable portion 33. In this case, the actuating means comprise a second electromagnetic coil 54 for acting on the magnet 40 of the second magnetic element of the movable part.

Avantageusement, les aimants permanents sont disposés à proximité des zones de contact pour assurer une bonne pression de contact. De préférence la partie à aimantation permanente ou l'aimant permanent ont une induction magnétique supérieure à 1 tesla avec un volume inférieur à 1 millimètre cube (mm3) pour un courant nominal dans les contacts de l'ordre de 1 ampère. Dans ce cas, un dispositif pouvant fonctionner à 10 ampères peut avoir un aimant inférieur à 10 mm3. Avec des aimants à induction supérieure à 3 Teslas par mm3, un dispositif de commutation aura un aimant de l'ordre de 3 mm3 pour 10 ampères.Advantageously, the permanent magnets are disposed near the contact zones to ensure good contact pressure. Preferably the permanently magnetized part or the permanent magnet have a magnetic induction greater than 1 tesla with a volume of less than 1 cubic millimeter (mm 3 ) for a nominal current in the contacts of the order of 1 ampere. In this case, a device capable of operating at 10 amps may have a magnet less than 10 mm 3 . With magnets with an induction greater than 3 Tesla per mm 3 , a switching device will have a magnet of the order of 3 mm 3 for 10 amperes.

De préférence, la partie mobile 33 a une forme allongée pouvant pivoter et comporte une zone de contact et un aimant permanent à chaque extrémité.Preferably, the movable portion 33 has an elongated shape that is pivotable and has a contact zone and a permanent magnet at each end.

Par exemple, pour constituer un commutateur inverseur à deux contacts, dans un dispositif de commutation selon un mode de réalisation de l'invention, la première partie 30 comporte le premier élément magnétisable 31 associé à une première zone de contact 32, et un troisième élément magnétisable 39 associé à une troisième zone de contact 42, et la seconde partie mobile 33 comporte une seconde zone de contact 35, vers une première extrémité, destinée à être en contact avec la première zone de contact 32 de la première partie, et une quatrième zone de contact 43, vers une seconde extrémité, destinée à être en contact avec la troisième zone de contact 42 de la première partie. Dans une première position stable de la partie mobile, la première et la seconde zones de contact 32 et 35 sont maintenues pour former un contact fermé et la troisième et la quatrième zones de contact 42 et 43 forment un contact ouvert, et dans une seconde position stable de la partie mobile, la troisième et la quatrième zones de contact 42 et 43 sont maintenues pour former un contact fermé et la première et la seconde zones de contact 32 et 35 forment un contact ouvert. La première, la seconde, la troisième et la quatrième zones de contact sont reliées électriquement à bornes de raccordement électriques à travers des conducteurs électriques et/ou le matériau des éléments magnétisables. L'utilisation des éléments magnétiques ou magnétisables associés à une fonction de conduction électrique permet de réduire le volume du dispositif de commutation. Par exemple, les éléments magnétiques ou magnétisables peuvent être associés à des conducteurs électriques dans un même élément ou être utilisés eux-mêmes comme conducteurs. Ainsi, un élément magnétique peut avoir deux types de fonction, avantageusement, des fonctions de type magnétique pour le maintien dans une position stable et pour exercer une pression de contact, et des fonctions de type électrique pour le contact électrique avec la partie mobile et pour la conduction électrique entre des bornes de connexion et ledit contact.For example, to constitute a two-contact inverter switch, in a switching device according to one embodiment of the invention, the first portion 30 includes the first magnetizable element 31 associated with a first contact zone 32, and a third element magnetizable 39 associated with a third contact zone 42, and the second movable portion 33 comprises a second contact zone 35, towards a first end, intended to be in contact with the first contact zone 32 of the first part, and a fourth contact zone 43, towards a second end, intended to be in contact with the third contact zone 42 of the first part. In a first stable position of the movable portion, the first and second contact areas 32 and 35 are held to form a closed contact and the third and fourth contact areas 42 and 43 form an open contact, and in a second position in the movable portion, the third and fourth contact areas 42 and 43 are held to form a closed contact and the first and second contact areas 32 and 35 form an open contact. The first, the second, the third and fourth contact areas are electrically connected to electrical connection terminals through electrical conductors and / or the material of the magnetizable elements. The use of magnetic or magnetizable elements associated with an electrical conduction function makes it possible to reduce the volume of the switching device. For example, the magnetic or magnetizable elements may be associated with electrical conductors in the same element or be used themselves as conductors. Thus, a magnetic element can have two types of function, advantageously, magnetic type functions for maintaining in a stable position and to exert a contact pressure, and functions of the electric type for the electrical contact with the mobile part and for electrical conduction between connection terminals and said contact.

Dans le mode de réalisation de la figure 4, la première partie comporte un premier conducteur électrique 45A associé à un premier élément magnétisable 31. Pour améliorer le basculement du commutateur et assurer une seconde position stable, la première partie comporte un troisième élément magnétisable 39 et un second conducteur 45B. Le mode de réalisation de la figure 4 montre un dispositif d'actionnement manuel 50 pour actionner la partie mobile 33 et la faire changer de position stable indépendamment des l'actionnements électromagnétiques opérés par les bobines 53 et 54 agissant sur les aimants 40 et 38.In the embodiment of FIG. 4, the first part comprises a first electrical conductor 45A associated with a first magnetizable element 31. To improve the tilting of the switch and to ensure a second stable position, the first part comprises a third magnetizable element 39 and a second conductor 45B. The embodiment of FIG. 4 shows a manual actuation device 50 for actuating the moving part 33 and making it change its stable position independently of the electromagnetic actuations operated by the coils 53 and 54 acting on the magnets 40 and 38.

Dans le mode de réalisation de la figure 5, la seconde partie mobile 33 comporte un premier aimant permanent 51 vers la première extrémité pour coopérer avec le premier élément magnétisable 31 de la première partie et un second aimant permanent 52 vers la seconde extrémité pour coopérer avec le troisième élément magnétisable 39 de la première partie.In the embodiment of FIG. 5, the second movable part 33 comprises a first permanent magnet 51 towards the first end to cooperate with the first magnetizable element 31 of the first part and a second permanent magnet 52 towards the second end to cooperate with the third magnetizable element 39 of the first part.

Le dispositif de la figure 5 comporte des moyens d'actionnement électromagnétique comportant une première bobine électromagnétique 53 enroulée sur le premier élément magnétisable 31 de la première partie pour agir en attraction ou en répulsion sur le second élément magnétique de la seconde partie mobile 33 et effectuer un changement d'état stable de ladite partie mobile. Dans ce mode de réalisation, les moyens d'actionnement électromagnétique comportent une seconde bobine électromagnétique 54 enroulée sur le troisième élément magnétisable 39 de la première partie pour agir en attraction ou en répulsion sur au moins un second élément magnétique de la seconde partie mobile et pour la faire changer d'état stable ladite seconde partie mobile. Ainsi, la bobine 53 et l'élément magnétisable 31 coopèrent avec l'aimant 51 et la bobine 54 et le l'élément magnétisable 39 coopèrent avec l'aimant 52 pour faire changer d'état la partie mobile 33. Dans une première position les zones de contact 32 et 35 forment un contact fermé alors que dans une seconde position les zones de contact 32 et 35 forment un contact ouvert et les zones de contact 42 et 43 forment un contact fermé.The device of FIG. 5 comprises electromagnetic actuation means comprising a first electromagnetic coil 53 wound on the first magnetizable element 31 of the first part to act in attraction or repulsion on the second magnetic element of the second movable part 33 and effecting a stable state change of said moving part. In this embodiment, the electromagnetic actuation means comprise a second electromagnetic coil 54 wound on the third magnetizable element 39 of the first part to act in attraction or in repulsion on at least one second magnetic element of the second movable part and to make it change stable state said second movable part. Thus, the coil 53 and the magnetizable element 31 cooperate with the magnet 51 and the coil 54 and the magnetizable element 39 cooperate with the magnet 52 to change state the movable portion 33. In a first position the contact areas 32 and 35 form a closed contact while in a second position the contact areas 32 and 35 form an open contact and the contact areas 42 and 43 form a closed contact.

Par exemple, la première et la seconde bobines électromagnétiques 53 et 54 sont commandées par des impulsions électriques pour générer des champs magnétiques inversés effectuant une répulsion et une attraction et faire changer la position stable de la seconde partie mobile entre une première et une seconde position stable.For example, the first and second electromagnetic coils 53 and 54 are driven by electrical pulses to generate inverted magnetic fields effecting repulsion and attraction and changing the stable position of the second movable portion between a first and a second stable position. .

Dans le mode de réalisation de la figure 5, le dispositif de commutation comporte aussi des moyens de maintien 55 pour maintenir la partie mobile 33 dans une troisième position stable dans laquelle le contact 36 formé par la première et la seconde zones de contact 32 et 35 et le contact 41 formé par la troisième et la quatrième zones de contact 42 et 43 sont ouverts.In the embodiment of FIG. 5, the switching device also comprises holding means 55 for holding the mobile part 33 in a third stable position in which the contact 36 formed by the first and the second contact zones 32 and 35 and the contact 41 formed by the third and fourth contact areas 42 and 43 are open.

Avantageusement, les moyens de maintien comportent un élément de support 56 en forme de méplat ou de butée disposés sur la première partie pour recevoir un premier coté 57 de la seconde partie mobile 33 et des moyens de pression 58 pour maintenir une zone centrale 59 de la seconde partie mobile contre l'élément de support. Par exemple sur la figure 5, Les moyens de pression sont constitués par un ressort.Advantageously, the holding means comprise a support member 56 in the form of flat or abutment disposed on the first portion to receive a first side 57 of the second movable portion 33 and pressure means 58 to maintain a central zone 59 of the second moving part against the support member. For example in Figure 5, the pressure means are constituted by a spring.

Sur la figure 6, les moyens de pression sont constitués par un troisième aimant permanent 60 disposé sur la partie centrale de la partie mobile et un quatrième élément magnétisable 61 disposés sur l'élément de support. Pour actionner seconde partie mobile et la mettre dans sa troisième position stable où les deux contacts sont ouverts, la première et la seconde bobines électromagnétiques sont commandées par des impulsions électriques générant des champs magnétiques de même sens effectuant deux répulsions.In FIG. 6, the pressure means consist of a third permanent magnet 60 disposed on the central part of the mobile part and a fourth magnetizable element 61 arranged on the support element. To actuate the second moving part and put it in its third stable position where the two contacts are open, the first and the second electromagnetic coils are controlled by electrical pulses generating magnetic fields of the same direction effecting two repulsions.

Dans le mode de réalisation de la figure 7, des moyens d'actionnement manuel ou mécanique 50 agissent sur la seconde partie mobile pour la faire changer d'état stable. Lorsqu'elle est dans sa troisième position, l'aimant 60 coopère avec le quatrième élément magnétisable 61 comportant de préférence un méplat pour maintenir la partie mobile. Dans cette position stable, les zones de contacts 35 et 43 de la seconde partie mobile ne sont pas en contact électrique avec les zones de contact 32 et 42 de la première partie.In the embodiment of FIG. 7, manual or mechanical actuating means 50 act on the second moving part to make it change its stable state. When in its third position, the magnet 60 cooperates with the fourth magnetizable element 61 preferably having a flat part to hold the moving part. In this stable position, the contact areas 35 and 43 of the second moving part are not in electrical contact with the contact areas 32 and 42 of the first part.

Les figures 8, 9 et 10 montrent un dispositif de commutation comportant un actionnement par des bobines électromagnétiques et un élément d'actionnement manuel 50. Ainsi deux moyens d'actionnement permettent des changer la position de la partie mobile 33. Sur la figure 8, la partie mobile est dans sa troisième position stable où les contacts 36 et 41 sont ouverts.FIGS. 8, 9 and 10 show a switching device comprising an actuation by electromagnetic coils and a manual actuating element 50. Thus two actuating means allow the position of the movable part 33 to be changed. In FIG. the moving part is in its third stable position where the contacts 36 and 41 are open.

Sur la figure 9, le premier contact 36 est ouvert et le second contact 41 est fermé par une action sur l'élément d'actionnement manuel 50 ou par des impulsions électriques sur les bobines électromagnétiques. Dans ce cas, la bobine 53 a été commandée pour agir en répulsion sur l'aimant 51, et la bobine 54 est commandée pour agir en attraction sur l'aimant 52.In FIG. 9, the first contact 36 is open and the second contact 41 is closed by an action on the manual actuating element 50 or by electrical pulses on the electromagnetic coils. In this case, the coil 53 has been controlled to act in repulsion on the magnet 51, and the coil 54 is controlled to act in attraction on the magnet 52.

Sur la figure 10, le premier contact 36 est fermé et le second contact 41 est ouvert par une action sur l'élément d'actionnement manuel 50 ou par des impulsions électriques sur les bobines électromagnétiques. Dans ce cas, la bobine 54 a été commandée pour agir en répulsion sur l'aimant 52, et la bobine 53 est commandée pour agir en attraction sur l'aimant 51.In FIG. 10, the first contact 36 is closed and the second contact 41 is opened by an action on the manual actuating element 50 or by electrical pulses on the electromagnetic coils. In this case, the coil 54 has been controlled to act in repulsion on the magnet 52, and the coil 53 is controlled to act in attraction on the magnet 51.

La figure 11 représente un dispositif de commutation selon l'invention destiné notamment à faire partie d'un appareil électrique de faibles dimensions. Le premier élément magnétisable 31 et directement relier à une borne de raccordement 44 et il reçoit sur sa longueur la bobine électromagnétique de commande 53, la première zone contact 32 au bout de l'élément magnétisable 31 dépasse de la bobine 53. L'élément magnétisable 31 sert aussi de conducteur entre la zone de contact et la borne de raccordement. Dans cette disposition, l'élément magnétisable 31 a des fonctions magnétiques de commande de la partie mobile en étant le noyau de la bobine 53 et de maintient de la partie mobile en coopérant avec l'aimant 51, et des fonctions de partie fixe de contact en ayant une zone de contact 32 et de conducteur électrique en reliant la zone 32 à la borne 44. Une telle réalisation permet de réduire considérablement la taille du dispositif de commutation. Le troisième élément magnétisable 39 et la bobine 54, sont réalisés et disposés de la même manière que l'élément 31 et la bobine 53. Le quatrième élément magnétisable 61 peut être réalisé de la même manière que le premier et le troisième éléments magnétisables 39. Il comporte une zone de contact qui est en contact avec la partie mobile 33 et coopère avec un aimant 60 dans la partie centrale de la partie mobile pour assurer une pression de contact et le pivotement de la partie mobile ainsi que son maintien en position. La partie mobile 33 peut être réalisée en matériau conducteur tel que le cuivre avec des traitements de surface appropriés vers les zone de contact électrique. Des aimants permanents 51, 52, et 60 disposés vers les extrémités et la zone centrale de la partie mobile 33 sont de préférence collés ou sertis sur le matériau conducteur.FIG. 11 represents a switching device according to the invention intended in particular to form part of a small electrical appliance. The first magnetizable element 31 and directly connect to a connection terminal 44 and it receives along its length the electromagnetic control coil 53, the first contact zone 32 at the end of the magnetizable element 31 protrudes from the coil 53. The magnetizable element 31 also serves as a conductor between the contact area and the connection terminal. In this arrangement, the magnetizable element 31 has magnetic functions for controlling the moving part in being the core of the coil 53 and holds the moving part cooperating with the magnet 51, and fixed contact part functions by having a contact zone 32 and electrical conductor connecting the zone 32 to the terminal 44 Such an embodiment makes it possible to considerably reduce the size of the switching device. The third magnetizable element 39 and the coil 54 are made and arranged in the same manner as the element 31 and the coil 53. The fourth magnetizable element 61 can be produced in the same way as the first and third magnetizable elements 39. It comprises a contact zone which is in contact with the movable part 33 and cooperates with a magnet 60 in the central part of the movable part to ensure a contact pressure and the pivoting of the movable part and its holding in position. The movable portion 33 may be made of conductive material such as copper with appropriate surface treatments to the electrical contact area. Permanent magnets 51, 52, and 60 disposed towards the ends and the central zone of the movable portion 33 are preferably glued or crimped onto the conductive material.

Les connections des bobines 53 et 54 et des conducteurs de contacts 45 peuvent aussi être réalisée par des picots de sortie ou des languettes 62 pouvant être soudées sur un circuit imprimé ou recevoir des fils électriques soudés ou raccordés par des cosses.The connections of the coils 53 and 54 and the contact conductors 45 can also be achieved by output pins or tongues 62 that can be welded to a printed circuit or receive electrical wires welded or connected by lugs.

Sur la figure 12, un dispositif de commutation selon la figure 11 est intégré dans un appareil électrique de coupure ou de commutation. Cet appareil électrique comporte un socle 63 en matériaux isolant pour recevoir et maintenir les différents éléments du dispositif de commutation. Sur cette figure, il comporte aussi un organe d'actionnement manuel ou 50 pour agir manuellement sur la partie mobile. L'organe d'actionnement manuel 50 peut être aussi un organe d'actionnement mécanique actionné notamment par un déplacement d'un objet, par une machine ou un mécanisme.In FIG. 12, a switching device according to FIG. 11 is integrated into an electrical switching or switching device. This electrical apparatus comprises a base 63 of insulating material for receiving and holding the various elements of the switching device. In this figure, it also comprises a manual actuator or 50 to act manually on the movable part. The manual actuating member 50 may also be a mechanical actuator actuated in particular by a movement of an object, by a machine or a mechanism.

La figure 13 représente un dispositif de commutation à deux ou trois positions stables destiné à être monté notamment sur un circuit imprimé ou faire partie d'un appareil électrique tel qu'un relais. Conducteurs 45 de contact ainsi que les connexions des bobines sont terminés par des picots ou des languettes de raccordements 62. Les conducteurs 45 sont directement sertis sur les éléments magnétisables de la première partie. Le quatrième élément magnétisable 61 a aussi la fonction d'élément support 56 pour supporter la partie centrale de la partie fixe, notamment dans sa troisième position stable où les contacts sont ouverts, et une fonction de conducteur électrique 45.FIG. 13 represents a switching device with two or three stable positions intended to be mounted in particular on a printed circuit or to be part of an electrical apparatus such as a relay. Conductors 45 of contact as well as the connections of the coils are terminated by pins or connecting tabs 62. The conductors 45 are directly crimped on the magnetizable elements of the first part. The fourth magnetizable element 61 also has the function of support element 56 for supporting the central part of the fixed part, in particular in its third stable position where the contacts are open, and an electrical conductor function 45.

Dans le cas d'un montage en relais, des entrées 62A correspondent à des entrées de contact électrique et des entrées 62B correspondent à des entrées de commande. Une première entrée de contact électrique 62A est connectée à la seconde partie mobile à travers le quatrième élément magnétisable 61, une seconde entrée de contact électrique 62A est connectée à une première zone de contact 32 de la première partie à travers le premier élément magnétisable 31, une troisième entrée de contact électrique 62A est connectée à une troisième zone 42 de contact de la première partie à travers le troisième élément magnétisable 39, et les entrées de commande 62B sont connectées à la première et à la seconde bobines électromagnétiques 53 et 54 disposées sur le premier et le troisième éléments magnétisables 31 et 39 de la première partie.In the case of relay mounting, inputs 62A correspond to electrical contact inputs and inputs 62B correspond to control inputs. A first electrical contact input 62A is connected to the second movable portion through the fourth magnetizable element 61, a second electrical contact input 62A is connected to a first contact area 32 of the first portion through the first magnetizable element 31, a third electrical contact input 62A is connected to a third contact area 42 of the first portion through the third magnetizable element 39, and the control inputs 62B are connected to the first and second electromagnetic coils 53 and 54 disposed on the first and the third magnetizable elements 31 and 39 of the first part.

Les figures 14, et 15 représentent des vues d'un relais selon un mode de réalisation l'invention comportant un dispositif de commutation selon la figure 13. Le relais comporte un support 64, par exemple en forme de boîtier, et un capot 65 refermant ledit support. Des passages disposés dans le boîtier permettent de passer des entrées de raccordement électrique 62. La figure 14 montre une vue éclatée des éléments du dispositif de commutation. Le relais monté est représenté sur la vue de la figure 15 où les éléments sont à leur place. Cette vue montre des avantages de l'invention, en particulier la réduction de place et de volume permis par une telle disposition. Le groupement de fonctions électriques et magnétiques dans un même élément, permet d'atteindre ces avantages.FIGS. 14 and 15 represent views of a relay according to one embodiment of the invention, comprising a switching device according to FIG. 13. The relay comprises a support 64, for example in the form of a housing, and a cover 65 enclosing said support. Passages disposed in the housing allow to pass electrical connection inputs 62. Figure 14 shows an exploded view of the elements of the switching device. The mounted relay is shown in the view of Figure 15 where the elements are in their place. This view shows advantages of the invention, in particular the reduction of space and volume allowed by such an arrangement. The grouping of electrical and magnetic functions in the same element makes it possible to achieve these advantages.

Le relais des figures 13, 14 et 15 peut être un relais à deux positions stables ou à trois positions selon le mode de commande des bobines 53 et 54. La première et la seconde bobines sont commandées en attraction et répulsion pour établir un contact électrique et en double répulsion pour ouvrir les deux contacts.The relay of FIGS. 13, 14 and 15 may be a relay with two stable positions or with three positions depending on the control mode of the coils 53 and 54. The first and second coils are controlled by attraction and repulsion to establish an electrical contact and double repulsion to open the two contacts.

La figure 16 représente schéma d'un appareil électrique comportant un dispositif de commutation selon un mode de réalisation de l'invention et un circuit de commande 70.FIG. 16 represents a diagram of an electrical apparatus comprising a switching device according to one embodiment of the invention and a control circuit 70.

L'appareil électrique comporte une première entrée 71 de contact électrique connectée à la seconde partie mobile 33, et une seconde entrée 72 de contact électrique connectée à une première zone de contact 32 de la première partie à travers le premier élément magnétisable 31, et une troisième entrée 73 de contact électrique connectée à une troisième zone de contact 42 de la première partie à travers le troisième élément magnétisable. Le circuit de commande 70 est connecté à une première et une seconde bobines électromagnétiques 53 et 54 disposées respectivement sur le premier et le troisième élément magnétisable 31 et 39 de la première partie. Dans le mode de réalisation de la figure 16, les bobines 53 et 54 sont connectées en série pour commander le déplacement de la partie mobile en attraction et répulsion. La partie mobile 33 peut comporter des aimants dans le matériau qui la compose. Des moyens d'actionnement manuels ou mécaniques 50 peuvent agir aussi sur la seconde partie mobile pour la faire changer d'état stable. Le circuit de commande 70 comporte des entrées de commande 74 pouvant recevoir des signaux de commande.The electrical apparatus has a first electrical contact input 71 connected to the second movable portion 33, and a second electrical contact input 72 connected to a first contact area 32 of the first portion through the first magnetizable element 31, and a third electrical contact input 73 connected to a third contact zone 42 of the first portion through the third magnetizable element. The control circuit 70 is connected to first and second electromagnetic coils 53 and 54 respectively disposed on the first and third magnetizable elements 31 and 39 of the first portion. In the embodiment of FIG. 16, the coils 53 and 54 are connected in series to control the displacement of the moving part in attraction and repulsion. The movable portion 33 may include magnets in the material that composes it. Manual or mechanical actuation means 50 can also act on the second mobile part to make it change stable state. The control circuit 70 has control inputs 74 which can receive control signals.

Les signaux de commande appliqués sur les entrées de commande 70 peuvent être notamment des signaux de polarisation, des signaux de durée d'impulsion et/ou des signaux de nombre d'impulsions.The control signals applied to the control inputs 70 may in particular be polarization signals, pulse duration signals and / or pulse number signals.

Sur le schéma de la figure 17, les bobines 53 et 54 sont connectées avec le circuit de commande aux entrées 74. Sur ce schéma, l'appareil reçoit alors des signaux de commande sous forme d'impulsions électriques fournies par un bouton poussoir 75 connectées entre les entrées 74 et une source l'alimentation électrique 76, par exemple un réseau de distribution électrique. Le circuit de commande peut agir sur les bobines en commandes simples d'interrupteur ou de commutateur télécommandé ou, par exemple en fonctions plus complexes telles que des fonctions de télérupteur, de retardateur, ou de minuterie électrique.In the diagram of FIG. 17, the coils 53 and 54 are connected with the control circuit to the inputs 74. In this diagram, the apparatus then receives control signals in the form of electrical pulses provided by a push button 75 connected. between the inputs 74 and a source the power supply 76, for example an electrical distribution network. The control circuit can act on the coils in simple commands of switch or remote-controlled switch or, for example in more complex functions such as remote control, self-timer, or electric timer functions.

La figure 18 représente un schéma d'un appareil électrique comportant un dispositif de commutation à trois positions stables tel que celui qui est décrit pour les figures 8 à 10 et un circuit de commande 70. Les bobines 53 et 54 sont connectées au circuit de commandes pour pouvoir être commandées en attraction et répulsion pour établir au moins un contact électrique 36 ou 41 et en double répulsion pour ouvrir lesdits contacts électriques. Un aimant 60 et un quatrième élément magnétisable 61 permettant de maintenir la partie mobile en position de contacts ouverts.FIG. 18 is a diagram of an electrical apparatus comprising a stable three-position switching device such as that described for FIGS. 8 to 10 and a control circuit 70. The coils 53 and 54 are connected to the control circuit. to be controlled by attraction and repulsion to establish at least one electrical contact 36 or 41 and double repulsion to open said electrical contacts. A magnet 60 and a fourth magnetizable element 61 making it possible to keep the moving part in the open contact position.

Sur la figure 19, un schéma d'un circuit de commande montre différentes possibilités de réception de signaux de commande. Le circuit de commande 70 comporte un circuit d'alimentation connectée entre des entrées d'alimentation 78 et un circuit de traitement 79. Le circuit de traitement 70 commande les bobine 53 et 54 en fonction de signaux de commande reçus notamment sur des entrées de commande 74.In FIG. 19, a diagram of a control circuit shows different possibilities of receiving control signals. The control circuit 70 comprises a supply circuit connected between supply inputs 78 and a processing circuit 79. The processing circuit 70 controls the coils 53 and 54 as a function of control signals received in particular on control inputs 74.

Le circuit de traitement 70 peut comporter aussi un circuit de télécommande connecté au circuit de traitement et recevant des signaux de commande fournis à travers un bus de communication 81 et/ou un récepteur de télécommande à distance.The processing circuit 70 may also include a remote control circuit connected to the processing circuit and receiving control signals provided through a communication bus 81 and / or a remote control receiver.

Les figures 20A, 20B, 20C, 21 et 23 représentent des signaux de commande pouvant être utilisés par des circuits de commande de dispositifs de commutation selon des modes de réalisation de l'invention. Sur la figure 20A un signal 90 de polarité négative peut commander le circuit de commande 70 pour positionner le dispositif de commutation dans une première position stable ou un premier contact 36 est établi. Sur la figure 20B un signal 91 de polarité positive peut commander le circuit de commande 70 pour positionner le dispositif de commutation dans une seconde position stable ou un second contact 41 est établi. Sur la figure 20C un signal 92 ayant des polarités négatives et positives peut commander le circuit de commande 70 pour positionner le dispositif de commutation dans une troisième position stable où les contacts 36 et 41 sont ouverts notamment par des commandes en double répulsion sur les bobines 53 et 54. La figure 21 représente des signaux de commande 93 à durée d'impulsion, et la figure 22 représente des signaux de commande 94 par nombre d'impulsions.Figs. 20A, 20B, 20C, 21 and 23 show control signals that can be used by switching device control circuits according to embodiments of the invention. In Fig. 20A a signal 90 of negative polarity can control the control circuit 70 to position the switching device in a first stable position or a first contact 36 is established. In Fig. 20B a signal 91 of positive polarity can control the control circuit 70 to position the switching device in a second stable position or a second contact 41 is established. In FIG. 20C, a signal 92 having negative and positive polarities can control the control circuit 70 to position the switching device in a third stable position where the contacts 36 and 41 are open in particular by double repulsion commands on the coils 53 and 54. Fig. 21 shows control signals 93 with pulse duration, and Fig. 22 shows control signals 94 by pulse number.

La figure 23 représente un mode de réalisation particulier d'une seconde partie mobile 33 ayant une constitution flexible pouvant être fixée par un point 100 situé dans une zone centrale, et comporte un au poins une zone de contact 35 et/ou 43 et un aimant 51 et/ou 52 vers au moins une extrémité. La seconde partie mobile comporte une ou deux ouvertures vers une zone centrale pour améliorer la flexibilité et le mouvement entre les positions stables. Le corps de la partie mobile peut avantageusement être constitué par un matériau tel que le laiton ou l'acier.FIG. 23 represents a particular embodiment of a second movable part 33 having a flexible constitution that can be fixed by a point 100 located in a central zone, and comprises at least one contact zone 35 and / or 43 and a magnet 51 and / or 52 to at least one end. The second movable portion has one or two openings to a central area to enhance flexibility and movement between positions stable. The body of the movable part may advantageously be constituted by a material such as brass or steel.

La figure 24 représente un dispositif de commutation comportant une seconde partie mobile selon la figure 23. Le point 100 de la zone centrale est fixé directement sur l'élément de support 56. Dans ce mode de réalisation, la constitution flexible de la seconde partie mobile permet aussi de fermer simultanément les deux contacts 36 et 41. Ainsi, les contacts peuvent être ouverts ou fermés de manière indépendante, notamment par des commandes électromagnétiques.FIG. 24 represents a switching device comprising a second moving part according to FIG. 23. The point 100 of the central zone is fixed directly on the support element 56. In this embodiment, the flexible constitution of the second moving part also allows to simultaneously close the two contacts 36 and 41. Thus, the contacts can be opened or closed independently, in particular by electromagnetic controls.

Sur la figure 25, une seconde partie mobile 33 est composée d'un matériau comportant une partie majoritairement à aimantation permanente, par exemple un aimant longitudinal 103 comportant des pastilles de contact à chaque extrémité.In FIG. 25, a second movable portion 33 is composed of a material comprising a substantially permanent-magnetized part, for example a longitudinal magnet 103 comprising contact pads at each end.

Dans les modes de réalisation décrits ci-dessus, les zones de contacts électriques peuvent être réalisées par dépôts de métal approprié ou par l'ajout de pastilles de contact de faible épaisseur. Les aimants peuvent avoir des formes diverses et être fixés sur des parties fixes ou mobile des éléments magnétiques. Les éléments magnétiques ou magnétisables peuvent aussi être recouverts de matériau selon l'intensité du courant qui doit traverser les contacts. Le courant peut atteindre plusieurs ampères dans un faible volume.In the embodiments described above, the areas of electrical contact can be made by appropriate metal deposits or by the addition of thin contact pads. The magnets can have various shapes and be fixed on fixed or movable parts of the magnetic elements. The magnetic or magnetizable elements may also be covered with material depending on the intensity of the current that must pass through the contacts. The current can reach several amperes in a small volume.

Les appareils électriques pouvant comporter un dispositif de commutation selon l'invention peuvent être très divers, par exemple, des interrupteurs de faible ou de forte puissance, des disjoncteurs, des contacts auxiliaires, des contacts commandés par des mécanismes ou manuellement.Electrical appliances that can include a switching device according to the invention can be very diverse, for example, low or high power switches, circuit breakers, auxiliary contacts, contacts controlled by mechanisms or manually.

Claims (35)

  1. Electrical switching device comprising at least one electrical contact able to be kept in a stable position by magnetic means,
    characterized in that it comprises:
    - at least a first part (30) comprising at least a first magnetizable element (31) and a first contact zone (32) associated with said first magnetizable element,
    - at least a second movable part (33) comprising at least a second magnetic element (34) and a second contact zone (35) associated with said second magnetic element, said second movable part (33) having at least a first stable position to keep a first electrical contact (36) closed between the first and second contact zones (32, 35) and a second stable position to keep said first electrical contact open, and
    - electromagnetic actuating means (53, 54) acting on the second movable part to make the latter change position and comprising at least a first electromagnetic coil (53) wound onto at least a first magnetizable element (31) of the first part to act in attraction or repulsion on at least a second magnetic element (51) of the second movable part (33) and to perform a change of stable state of said second movable part,
    the first or second magnetic element comprising at least one permanent magnetization part (38, 51, 103) to keep the first electrical contact closed (36) and exert a contact pressure between the first and second contact zones (32, 35) by a magnetic attraction exerted between the first and second magnetic elements (31, 34, 38, 51, 103) when the movable part is in its first stable position.
  2. Switching device according to claim 1, characterized in that the electromagnetic actuating means comprise at least a second electromagnetic coil (54) wound onto at least a third magnetizable element (39) of the first part to act in attraction or in repulsion on at least a second magnetic element (52) of the second movable part (33) and to perform a change of stable state of said second movable part.
  3. Switching device according to claim 2, characterized in that the first and second electromagnetic coils (53, 54) are designed to be controlled by electrical pulses to generate reverse magnetic fields performing a repulsion and an attraction and to make the stable position of the second movable part (33) change between a first and a second stable position closing at least one electrical contact (36) between a contact zone (32) of the first part and a contact zone (35) of the second movable part (33).
  4. Switching device according to one of the claims 2 or 3, characterized in that the first and second electromagnetic coils (53, 54) are designed to be controlled by electrical pulses to generate magnetic fields of the same direction performing two repulsions and to position the second movable part (33) in a third stable position where the contact zones (35, 43) of the second movable part (33) are not in electrical contact with the contact zones (32, 42) of the first part (30).
  5. Switching device according to any one of the claims 1 to 4, characterized in that the first part comprises a third magnetizable element (39) to keep the second movable part (33) in the second stable position.
  6. Switching device according to any one of the claims 1 to 5, characterized in that the second movable part (33) comprises at least one permanent magnet (51, 52, 103, 104) arranged in proximity to a contact zone (35, 43).
  7. Switching device according to any one of the claims 1 to 6, characterized in that the second movable part is composed of a material (103, 104) comprising a mainly permanent magnetization part.
  8. Switching device according to any one of the claims 1 to 7, characterized in that the permanent magnetization part or the permanent magnet (38, 51, 52, 103) have a magnetic induction greater than 1 tesla.
  9. Switching device according to any one of the claims 1 to 8, characterized in that the second movable part (33) has an elongate shape able to pivot and comprises at least one contact zone (35, 43) and one magnetic attraction zone towards at least one end.
  10. Switching device according to claim 9, characterized in that the second movable part (33) comprises at least one contact zone (35, 43) and one permanent magnet (51, 52) at a first end and at a second end.
  11. Switching device according to any one of the claims 1 to 10, characterized in that the second movable part (33) has a flexible constitution able to be fixed by a point (100) situated in a central zone, and comprises at least one contact zone (35, 43) and one magnet (51, 52) towards at least one end.
  12. Switching device according to claim 11, characterized in that the second movable part (33) comprises at least one opening (102) to a central zone.
  13. Switching device according to any one of the claims 1 to 12, characterized in that:
    - the first part (30) comprises the first magnetizable element (31) associated with a first contact zone (32) and a third magnetizable element (39) associated with a third contact zone (42), and
    - the second movable part (43) comprises a second contact zone (35) towards a first end designed to be in contact with the first contact zone (32) of the first part, and a fourth contact zone (43) towards a second end designed to be in contact with the third contact zone (42) of the first part,
    in a first stable position of the movable part, the first and second contact zones (32, 35) are maintained to form a closed contact and the third and fourth contact zones (42, 43) form an open contact, and in a second stable position of the movable part, the third and fourth contact zones (42, 43) are maintained to form a closed contact and the first and second contact zones (32, 35) form an open contact.
  14. Switching device according to claim 13, characterized in that the first, second, third and fourth contact zones (32, 35, 42, 43) are electrically connected to electrical connection means (44, 62, 62A, 62B, 71, 72, 73).
  15. Switching device according to one of the claims 13 or 14, characterized in that the second movable part (33) comprises a first permanent magnet (51) towards the first end to operate in conjunction with the first magnetizable element (31) of the first part and a second permanent magnet (52) towards the second end to operate in conjunction with the third magnetizable element (39) of the first part.
  16. Switching device according to any one of the claims 13 to 15, characterized in that it comprises maintaining means (55) to keep the second movable part (33) in a third stable position wherein the contact (36) formed by the first and second contact zones (32, 35) and the contact (41) formed by the third and fourth contact zones (42, 43) are open.
  17. Switching device according to claim 16, characterized in that the maintaining means comprise a support element (56) in the form of a flat part arranged on the first part to receive a first side (57) of the second movable part and pressure means (58) to keep a central zone (59) of the second movable part against said support element.
  18. Switching device according to claim 17, characterized in that the pressure means (58) are formed by a spring.
  19. Switching device according to claim 17, characterized in that the pressure means (58) are formed by a third permanent magnet (60) and a fourth magnetizable element (61) arranged on the support element and on the central zone of the movable part.
  20. Switching device according to any one of the claims 1 to 19, characterized in that it comprises manual or mechanical actuating means (50) acting on the second movable part (33) to make it change stable state.
  21. Switching device according to any one of the claims 1 to 20, characterized in that the second movable part (33) has a flexible constitution able to be fixed by a point (100) situated in a central zone, and comprises at least one contact zone (35, 43) and a magnet (51, 52) with two ends to form two contacts (36, 41) with contact zones (32, 42) of magnetizable elements of the first part, said two contacts being able to be closed simultaneously.
  22. Switching device any one of the claims 1 to 21, characterized in that at least one magnetic or magnetizable element (31, 39, 61) enables an electric current designed to flow in at least one electrical contact (36, 41) to be conducted through the material that constitutes it.
  23. Electromagnetic relay with at least two stable states comprising at least a first and a second electrical contact inputs (62A) and control inputs (62B),
    characterized in that it comprises at least one switching device according to one of the claims 1 to 22, the first electrical contact input being connected to the second movable part (33), the second electrical contact input being connected to a first contact zone (32) of the first part, and the control inputs (62B) being connected to at least a first electromagnetic coil (53) arranged on at least a first magnetizable element (31) of the first part.
  24. Relay according to claim 23, characterized in that it comprises at least a second electromagnetic coil (54) connected to the control inputs (62B) and arranged on at least a third magnetizable element (39) of the first part.
  25. Relay according to claim 23 or 24, characterized in that it has at least three stable states and comprises a third contact zone (42) connected to a third contact input and means (60, 61) for keeping the second movable part (33) in a third stable position where the electrical contacts between the first, second and third contact zones (32, 35, 42) are open, the first and second electromagnetic coils (53, 54) being designed to be commanded in attraction and repulsion to establish an electrical contact and in double repulsion to open the contacts.
  26. Electrical apparatus comprising at least a first and a second electrical contact inputs (71, 72), characterized in that it comprises:
    - at least one switching device according to one of the claims 1 to 22 with at least two stable positions, the first electrical contact input (71) being connected to the second movable part (33), the second electrical contact input (72) being connected to a first contact zone (32) of the first part, and
    - a control circuit (70) connected to at least a first electromagnetic coil (53) arranged on a first magnetizable element (31) of the first part.
  27. Electrical apparatus according to claim 26, characterized in that the switching device comprises at least a second electromagnetic coil (54) connected to the control circuit (70) and arranged on at least a third magnetizable element (39) of the first part.
  28. Electrical apparatus according to one of the claims 26 or 27, characterized in that the switching device has three stable states and comprises a third contact zone (42) connected to a third contact input (73) and means for keeping the second movable part (33) in a third stable position where the electrical contacts between the first, second and third contact zones are open, the first and second electromagnetic coils (52, 53) being designed to be commanded in attraction and repulsion to establish at least one electrical contact and in double repulsion to open the contacts.
  29. Electrical apparatus according to any one of the claims 26 to 28, characterized in that it comprises manual or mechanical actuating means (50) acting on the second movable part (33) to make it change stable state.
  30. Electrical apparatus according to any one of the claims 26 to 29, characterized in that the control circuit (70) comprises at least one control input (74) able to receive control signals.
  31. Electrical apparatus according to claim 30, characterized in that the control signals applied to the input can be polarization signals (90, 91, 92), pulse duration signals (93) and/or number of pulse signals (94).
  32. Electrical apparatus according to any one of the claims 26 to 31, characterized in that the control circuit (70) comprises at least one remote control input (81) by communication bus to receive control signals.
  33. Electrical apparatus according to any one of the claims 26 to 32, characterized in that the control circuit comprises remote control receipt means (80, 82) to receive control signals.
  34. Electrical apparatus according to any one of the claims 26 to 33, characterized in that the control circuit comprises processing means (79) to process control signals and to control the electromagnetic coils according to said signals.
  35. Electrical apparatus according to claim 34, characterized in that the processing means (79) perform remote control switch, time switch and/or controlled switch functions.
EP03778439A 2002-10-28 2003-10-22 Electrical switching device, relay and electrical apparatus comprising same Expired - Lifetime EP1556873B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0213433 2002-10-28
FR0213433A FR2846470B1 (en) 2002-10-28 2002-10-28 ELECTRICAL SWITCHING DEVICE, RELAY AND ELECTRICAL DEVICE COMPRISING SUCH A DEVICE
PCT/FR2003/003136 WO2004040607A1 (en) 2002-10-28 2003-10-22 Electrical switching device, relay and electrical apparatus comprising same

Publications (2)

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EP1556873A1 EP1556873A1 (en) 2005-07-27
EP1556873B1 true EP1556873B1 (en) 2006-06-21

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EP03778439A Expired - Lifetime EP1556873B1 (en) 2002-10-28 2003-10-22 Electrical switching device, relay and electrical apparatus comprising same

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US (1) US7233220B2 (en)
EP (1) EP1556873B1 (en)
CN (1) CN100341083C (en)
AT (1) ATE331290T1 (en)
AU (1) AU2003285438B2 (en)
DE (1) DE60306409T2 (en)
ES (1) ES2264017T3 (en)
FR (1) FR2846470B1 (en)
WO (1) WO2004040607A1 (en)

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AU2003285438A1 (en) 2004-05-25
DE60306409T2 (en) 2006-12-07
US7233220B2 (en) 2007-06-19
ATE331290T1 (en) 2006-07-15
FR2846470A1 (en) 2004-04-30
CN100341083C (en) 2007-10-03
WO2004040607A1 (en) 2004-05-13
EP1556873A1 (en) 2005-07-27
ES2264017T3 (en) 2006-12-16
US20060145794A1 (en) 2006-07-06
DE60306409D1 (en) 2006-08-03
AU2003285438B2 (en) 2008-01-17
CN1708818A (en) 2005-12-14
FR2846470B1 (en) 2005-03-04

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