EP2471081B1 - Drive device for a multi-position switching apparatus - Google Patents
Drive device for a multi-position switching apparatus Download PDFInfo
- Publication number
- EP2471081B1 EP2471081B1 EP09778086.0A EP09778086A EP2471081B1 EP 2471081 B1 EP2471081 B1 EP 2471081B1 EP 09778086 A EP09778086 A EP 09778086A EP 2471081 B1 EP2471081 B1 EP 2471081B1
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- Prior art keywords
- link
- piece
- movement
- carrier
- drive
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- 230000033001 locomotion Effects 0.000 claims description 43
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 3
- 210000003127 knee Anatomy 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 235000004727 Opuntia ficus indica Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
- H01H2003/405—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing using a walking nut
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
- H01H3/503—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring making use of electromagnets
Definitions
- the invention relates to a drive device for a multi-position switching device according to the preamble of claim 1.
- Electrical distribution boards are designed as metal-enclosed, SF6-gas-insulated switchgear, which includes several switching devices, including disconnectors and earthing switches. These earthing switches and circuit breakers are combined with each other in one unit, having a contact system with a movable contact piece, a high voltage fixed contact piece and a grounded fixed contact piece (grounding contact piece).
- the movable contact piece may be a thrust contact piece, which is brought into communication with the high-voltage fixed contact piece and the grounding contact piece, wherein the drive of the linearly movable contact piece via a gear spindle, such as from EP 0 824 264 B4 known.
- a drive device according to the preamble of claim 1 is made EP 0 763 839 A2 known.
- the object of the invention is to provide a drive device of the type mentioned, which is simple in construction and with the sufficient reliability of the drive function can be achieved.
- a drive device in particular for a multi-position switching device, for example for a disconnector and earthing switch whose movable contact piece in different positions: switch-on position, disconnected position, grounding position and can be moved back provided with a driver which is linearly movable by means of a linear motion drive, in which a link control is provided which holds the driver in the different positions.
- the link control has two link pieces, of which at least one has recesses for receiving the driver.
- this link piece may have three recesses in which the driver is held, the link piece with the recesses of the other link piece by means of a drive is removable, so that the driver is freely movable in the separate position of the two link pieces.
- the other link piece on the backdrop piece with the recesses curvedenden side have a flat surface and be stored stationary.
- this link control is such that when the driver is in one of the wells, the two link pieces are pressed against each other. So that the driver can be moved, the link piece with the recesses must be deducted from the other link piece; In this case, a free mobility of the driver to the next depression is possible.
- the link device comprises two link pieces, each of which has a recess and within the recess depending on a strip-like projection, wherein the strip-like projections are offset from each other, so that when joining the two link pieces, the strip-like projections itself overlap and each form a space between them and the end surfaces of the recesses, which serves to receive the driver in each one of the three positions.
- the strip-like projections may each be limited by step walls, of which the one step walls between them form a receiving space and the other step walls with the end faces of the recesses each form a further receiving space.
- each further receiving spaces are formed, which are arranged on both sides to the receiving space located between the one step walls.
- a manual transmission arrangement can be provided in an expedient manner on the lever each with a handle part which converts a rotational movement about a stationary axis into a rotational movement of the reversing lever.
- An Indian Fig. 1 schematically illustrated electrical switching device 10, which is a three-position switching device, so which can assume a grounding position, a disconnected position and a closed position, has a movable contact piece 11 which is arranged in a cable 12 within a metal-enclosed switchgear.
- This movable contact piece 11 can take three positions; in one position, the movable contact piece 11 is in communication with a stationary contact piece 13 located at high-voltage potential; in a further position is the movable contact piece 11 with a grounded contact piece 14, also called ErdungsAuthmaschine 14, in conjunction and in the third, drawn position, the contact piece 11 is at a sufficient distance from the fixed, located at high voltage potential contact piece 13 and the fixed grounding contact piece 14; this position is the so-called separation position.
- the movable contact piece 11 is driven by a drive device 15 which has a drive spindle 16 which has an external thread 17 on which a carriage 18 is guided such that the carriage 18 moves in a rotation of the spindle 16 either upwards in the direction of arrow P1 or down in the direction of arrow P2.
- the drive spindle 16 is rotated by means of a gear consisting of two gear wheels 19 and 20, which is driven by an electric motor 21 in rotation.
- a driver 22 On the carriage 18 is a driver 22, which, as from the FIGS. 2 to 7 shows, moves in the direction of arrow P1 or P2 and can be fixed in three positions.
- the drive device has two link pieces 23 and 24, of which the one link piece 23 has three recesses 25, 26 and 27, whereas the other link piece 24 has a flat surface 28, against which the open sides of the recesses 25 to 27 are directed ,
- the one link piece 23 can be actuated by means of a stationary magnet system 29, specifically in the direction of the arrow P3; It can therefore be separated from the other gate piece 24 accordingly.
- the Fig. 2 shows the driver 22 in its middle position, ie in the position in which the driver 22 is located in the central recess 26.
- the one link piece 23 is deducted from the other link piece 24 in the direction of arrow P 3 by means of the solenoid device or the magnet system 29, whereby the central recess 26 releases the driver 22 and thus the driver 22 can be set in motion by rotation of the drive spindle 16.
- the movable contact piece 11 is moved in accordance with the line of action 30 from the position shown in the grounding position. This position is represented by the dashed line position of the driver 22 '.
- To lock the one link piece 23 is moved in the dashed position 23 'against the other link piece 24, whereby the upper recess 25 is pushed over the driver and the driver 22 is held in the upper recess 25.
- the carriage 18 is moved in the direction of arrow P2, so that the driver 22 is moved to the position 22 ", for which purpose a gate piece 23 is again separated from the other gate piece 24, so that the driver 22 is released and on the middle, thick extended position in the position shown in the drawing below, which is extended by 22 ", can be moved; after reaching the position 22 ", the one link piece 23 is moved against the other link piece 24, so that the driver 22 is held in the lower recess 27.
- the control of the solenoid system 29 is carried out as needed, taking into account certain locking conditions, which will not be explained in detail here.
- the FIGS. 4 to 7 show a further embodiment of the invention.
- the drive device which bears the reference numeral 40 in its entirety, comprises two slide pieces 41 and 42 which are each driven by means of a solenoid system 43 and 44.
- each gate piece On the opposite sides each gate piece has a respective recess 45 and 46, in which strip-like projections 47 and 48 are provided; the strip-like projection 47 of the first link piece 41 is offset relative to the strip-like projection 48 of the second link piece 42 and is located in the drive direction (P1 or P2) below the strip-like projection 48 of the second link piece 42, so that the strip-like projection 47 of the first link piece 41 can engage in the recess 46 of the second link piece 42.
- the strip-like projection 48 of the second link piece 42 engages above the strip-like projection 47 of the first link piece 41 in the recess 45 of the first link piece 41 a.
- the strip-like projection 47 has a respective step wall 49 and 51, via which the front surface of the strip-like projection 47 merges into the bottom surface of the recess 45.
- the recess 45 is bounded by a first end face 50, which is located at a distance A from the step wall 49, and a second end face 52, wherein the end faces 50, 52 extend perpendicular to the direction of movement P 1 of the carriage 18.
- the recess 46 of the second link piece 42 also has end surfaces 55 and 56, which lie at the same height as the end surfaces 50 and 52 of the recess 45 of the first link piece 41 and also perpendicular to the direction of movement P 1 of the carriage 18.
- the strip-like projection 48 of the second link piece 42 has similar to the strip-like projection 47 of the first link piece 41 step surfaces 53 and 54 or step walls 53, 54, via which the front surface of the projection 48 merges into the bottom surface of the recess 46.
- the strip-like projections 47 and 48 are, as mentioned above, one above the other, wherein they are in the contracted state, see 4 and FIG. 6 overlapping the step surface 54 to the end surfaces 52 and 56, the step surfaces 53 of the strip-like projection 48 to the step surface 51 of the strip-like projection 47 and the step surface 49 of the strip-like projection 47 to the end surfaces 50 and 55 of the recesses 45 and 46 each one Take distance A, so that in the contracted state of the two link pieces 41 and 42 each have a space 57, 58 and 59 is formed, in which the driver 22 can be accommodated.
- the three spaces 57, 58 and 59 are superposed, with the first space 57 in the drawing above the middle space 58 and the second space 59 below the middle space 58.
- FIGS. 4 to 7 specified positions of the driver 22, wherein when the driver is in the first, upper space 57, the movable contact piece 11 is in the grounding position; when the driver 22 is received in the central space 58, then the movable contact piece 11 is in the disconnected position, and when the driver is received in the lower, second space 59, the movable contact piece 11 is in the position in which it the located at high voltage potential contact piece 13 is in communication.
- the positions of the driver 22 in the three rooms can lead to a different contacting position or separation position of the movable contact piece 11. In the position according to Fig. 4 is Depending on the position of the carriage 18, the driver 22 can also be moved into the space 57 or in the space 59.
- the driver 22 in its middle position and in this case between the devisncommunn- or surfaces 51 and 53 of the projections 47 and 48 in the space 58.
- the driver 22 On its movement in the direction of arrow P 1 , as is apparent from Fig. 4 can be seen, the driver 22 held by the step wall 53.
- the link piece 42 in the direction of arrow P4 see Fig. 5 , which is done by means of the electromagnetic system 43, then the step wall 53, the driver 22 free and the driver 22 can according to the direction of arrow P1 move upwards, so that the movable contact piece 11 in the ground position in which the movable contact piece 11 with the grounding contact piece 14 comes into contact, is spent.
- a restoring element 61 is arranged between the link piece 42 and the electromagnetic drive 44, which then spins the link piece 42 back into the position in which the projection 48 in the recess 45 and the projection 47 engage in the recess 46.
- a return element may for example be a spring arrangement or else part of the electromagnetic system.
- the embodiment according to the FIGS. 4 to 7 has the advantage that the driver 22, when the one link piece is removed from the other link piece, always a step surface 51 or 53 or an end face 52, 56 and 50, 55 serves as a stop for the driver, so that movement of the Mit Mothers beyond the respective positions, as in the execution according to the FIGS. 2 and 3 The case could definitely be avoided. This additional security for the operation of a movable contact piece of a switching device is effected.
- the drive of the motor 21 can be pneumatic, hydraulic or electric. Of course, there is also the possibility of a manual drive.
- the gear 19, 20 may be formed in different ways. By means of the gear 19, 20, the spindle 16 is driven, which is a so-called Huber Wegungselement, which has the task to convert a rotational movement in a linear movement of the switch 18.
- the actuation of the link pieces 23, 24 or the link pieces 41, 42 may, as described above, be made electromagnetically.
- other types of drives in particular of hydraulic or pneumatic drives.
- the end surfaces 52, 56, 50 and 55 are generally equal in height to the step walls 49, 51, 53 and 54 such that the end surfaces 52, 56; 50 and 55 each about half the height of each step wall 49, 51, 53 and 54 correspond.
- FIGS. 4 to 7 are the solenoid actuators 43 and 44 facing each other, wherein the direction of movement of the solenoid actuators 43, 44 is perpendicular to the movement of the driver 22.
- Electromagnetic actuators 81 and 82 are so on both sides of the link pieces 41 and 42 that the direction of movement of the drives 81 and 82 parallel to the direction of movement of the driver 22 extends.
- a plunger 83 which is hingedly connected via an axis 84 with a reversing lever 85 shown here in the form of a triangle.
- the bell crank 85 is articulated to a stationary axle 86, and the center axes of the axles 84 and 86 are approximately on a line perpendicular to the direction of travel of the ram 83.
- a further axis 87 is articulated, to which a further plunger 88 is articulated, which is connected to the link piece 42.
- the reversing lever 85 is thus designed as a kind of toggle lever and also acts like a toggle lever, wherein the center lines of the axes 86 and 87 lie on a line which is parallel to the direction of movement of the plunger 83 and the driver 22.
- the three axes 84, 86 and 87 form an L-shaped toggle lever assembly, which converts the direction of movement P 2 of the plunger 83 in the direction of movement P4 of the gate piece 42. Therefore, the reversing lever 85, which is drawn triangular here, could also be designed as L-shaped toggle lever, wherein the fixed axis of the toggle lever would be in the knee.
- a coil spring 89 is provided which is fixedly mounted on the axis 86 and two arms 90 and 91 which project tangentially and at an obtuse angle to each other from the coil spring 89 and there on the one hand to a stationary retaining pin 92 and on the other hand on the axis Abut 87, wherein the force effect is such that when the plunger 83 is moved against the direction of the arrow P2 in the direction of arrow P1, the coil spring 89 is tensioned.
- the solenoid system 82 is turned off or released is, the spring 89, the axis 87 against the direction of arrow P4 in the direction of arrow P4 ', so that the sliding block 42 is pressed against the gate 41.
- the arrangement is also constructed for the electromagnetic system 81, wherein only the directions of movement are reversed.
- a lever linkage 93 which has an approximately L-shaped grip member 94 which is rotatably mounted in its knee on a stationary axle 95.
- a transmission rod 97 is articulated, which is connected at its other end pivotally connected to the axis 84.
- FIG. 9 shows a schematic representation of a plan view of the two link pieces 41 and 42 with the recesses 45 and 46 and the strip-like projection 48 of the second Gate piece 42.
- an extension 70 of the first gate piece 41 above the two end walls 52 and 56 partially covers the second gate piece 42.
- an insert screw 71 which engages in a slot 72 in the extension 70.
- the length of the slot 72 is sized according to the path of movement of the two scenes 41 and 42.
- the second link piece 42 is subtracted from the first link piece 41, then the second link piece 42 and thus the screw 71 moves within the slot in the direction of arrow P4, so that the screw 71 is moved within the slot 72 against the end of the slot 72, which is adjacent to the free end of the extension 70.
- the first link piece 41 can not be moved in the direction of arrow P5, because the movement of the first link piece 41, the screw 71 is hindered within the slot 72.
- Fig. 9 is the extension 70 on the side of the transmission 19 and 20 (see Fig. 1 ); At the opposite end of the link piece 41, a same, projecting in the same direction extension is formed in the Fig. 9 not shown.
- the drives for the link pieces are designed as electromagnetic systems.
- the drives hydraulically or pneumatically.
- the link pieces are each connected to a pin with the respective drive elements.
- a suitable guide provided so that the link pieces can be moved exactly parallel to each other and exactly transverse to its longitudinal extent. For this purpose, an additional guidance of the link pieces is required.
- link pieces by two parallel sliding piece elements, which are interconnected, so that instead of a driver two driving pins are provided, between the two Sliding link elements and project in opposite directions.
- the invention has been described with reference to a switching device, here a disconnector and earthing switch.
- a switching device here a disconnector and earthing switch.
- the scenery control according to the FIGS. 1 to 8 to apply in other facilities in which a particular device is to be moved in three different, well-defined positions.
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Slide Switches (AREA)
Description
Die Erfindung betrifft eine Antriebseinrichtung für ein Mehrstellungsschaltgerät gemäß dem Oberbegriff des Anspruches 1.The invention relates to a drive device for a multi-position switching device according to the preamble of claim 1.
Elektrische Schaltanlagen zur Energieverteilung sind als metallgekapselte, SF6-gas-isolierte Schaltanlagen ausgeführt, die mehrere Schaltgeräte umfassen, darunter auch Trenn- und Erdungsschalter. Diese Erdungsschalter und Trennschalter sind miteinander in einer Einheit kombiniert, wobei sie ein Kontaktsystem mit einem beweglichen Kontaktstück, einem auf Hochspannung befindlichen feststehenden Kontaktstück und einem auf Erdpotential befindlichen feststehenden Kontaktstück (Erdungskontaktstück) aufweisen. Dabei kann das bewegliche Kontaktstück ein Schubkontaktstück sein, welches mit dem auf Hochspannung befindlichen feststehenden Kontaktstück und dem Erdungskontaktstück in Verbindung gebracht wird, wobei der Antrieb des sich linear beweglichen Kontaktstückes über eine Getriebespindel erfolgt, wie beispielsweise aus der
Eine Antriebseinrichtung gemäß dem Oberbegriff des Anspruches 1 ist aus
Aufgabe der Erfindung ist es, eine Antriebseinrichtung der eingangs genannten Art zu schaffen, die einfach aufgebaut ist und mit der eine ausreichende Betriebssicherheit der Antriebsfunktion erzielt werden kann.The object of the invention is to provide a drive device of the type mentioned, which is simple in construction and with the sufficient reliability of the drive function can be achieved.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst. Erfindungsgemäß ist eine Antriebseinrichtung, insbesondere für ein Mehrstellungsschaltgerät, beispielsweise für einen Trenn- und Erdungsschalter, dessen bewegliches Kontaktstück in unterschiedlichen Stellungen: Einschaltstellung, Trennstellung, Erdungsstellung und zurück verbringbar ist, vorgesehen, mit einem Mitnehmer, der mittels eines linear Bewegungsantrieb linear bewegbar ist, wobei eine Kulissensteuerung vorgesehen ist, die den Mitnehmer in den unterschiedlichen Stellungen festhält.This object is achieved by the features of claim 1. According to the invention, a drive device, in particular for a multi-position switching device, for example for a disconnector and earthing switch whose movable contact piece in different positions: switch-on position, disconnected position, grounding position and can be moved back provided with a driver which is linearly movable by means of a linear motion drive, in which a link control is provided which holds the driver in the different positions.
Die Kulissensteuerung weist zwei Kulissenstücke auf, von denen wenigstens eines Vertiefungen zur Aufnahme des Mitnehmers aufweist.The link control has two link pieces, of which at least one has recesses for receiving the driver.
Dabei kann dieses Kulissenstück drei Vertiefungen aufweisen, in denen der Mitnehmer festgehalten ist, wobei das Kulissenstück mit den Vertiefungen von dem anderen Kulissenstück mittels eines Antriebs abziehbar ist, so dass der Mitnehmer in getrennter Stellung der beiden Kulissenstücke frei bewegbar ist. Dabei kann das andere Kulissenstück auf der zum Kulissenstück mit den Vertiefungen hinweisenden Seite eine ebene Fläche aufweisen und ortsfest gelagert sein.In this case, this link piece may have three recesses in which the driver is held, the link piece with the recesses of the other link piece by means of a drive is removable, so that the driver is freely movable in the separate position of the two link pieces. In this case, the other link piece on the backdrop piece with the recesses hinweisenden side have a flat surface and be stored stationary.
Die Arbeitsweise dieser Kulissensteuerung ist dergestalt, dass dann, wenn sich der Mitnehmer in einer der Vertiefungen befindet, die beiden Kulissenstücke gegeneinander gedrückt sind. Damit der Mitnehmer verschoben werden kann, muss das Kulissenstück mit den Vertiefungen von dem anderen Kulissenstück abgezogen werden; in diesem Falle ist eine freie Bewegbarkeit des Mitnehmers zur nächsten Vertiefung möglich.The operation of this link control is such that when the driver is in one of the wells, the two link pieces are pressed against each other. So that the driver can be moved, the link piece with the recesses must be deducted from the other link piece; In this case, a free mobility of the driver to the next depression is possible.
Eine besonders vorteilhafte Ausgestaltung der Erfindung kann dahingehen, dass die Kulisseneinrichtung zwei Kulissenstücke aufweist, von denen jede eine Vertiefung und innerhalb der Vertiefung je einen leistenartigen Vorsprung aufweist, wobei die leistenartigen Vorsprünge gegeneinander versetzt sind, so dass beim Zusammenfügen der beiden Kulissenstücke die leistenartigen Vorsprünge sich überlappen und zwischen sich und den Endflächen der Vertiefungen jeweils einen Raum bilden, der zur Aufnahme des Mitnehmers in jeweils einer der drei Stellungen dient.A particularly advantageous embodiment of the invention can be dahingehen that the link device comprises two link pieces, each of which has a recess and within the recess depending on a strip-like projection, wherein the strip-like projections are offset from each other, so that when joining the two link pieces, the strip-like projections itself overlap and each form a space between them and the end surfaces of the recesses, which serves to receive the driver in each one of the three positions.
Dabei können die leistenartigen Vorsprünge jeweils durch Stufenwände begrenzt sein, von denen die einen Stufenwände zwischen sich einen Aufnahmeraum und die anderen Stufenwände mit den Endflächen der Vertiefungen jeweils einen weiteren Aufnahmeraum bilden.In this case, the strip-like projections may each be limited by step walls, of which the one step walls between them form a receiving space and the other step walls with the end faces of the recesses each form a further receiving space.
Dabei befindet sich der eine Aufnahmeraum zwischen den Stufenwänden, die sich gegenüberliegen, wogegen zwischen den anderen Stufenwänden und den Endflächen der Vertiefung jeweils weitere Aufnahmeräume gebildet sind, die beidseitig zu dem zwischen den einen Stufenwänden befindlichen Aufnahmeraum angeordnet.In this case, there is a receiving space between the step walls, which are opposite, whereas between the other step walls and the end surfaces of the recess each further receiving spaces are formed, which are arranged on both sides to the receiving space located between the one step walls.
Dass die beiden Kulissenstücke jeweils gegeneinander verriegelt sein müssen, damit nicht unzulässige Bewegungen des Mitnehmers auftreten, ist selbstverständlich.It goes without saying that the two link pieces must each be locked against each other, so that impermissible movements of the driver do not occur.
In besonders vorteilhafter Weise können als Antriebselemente für die Kulissenstücke Elektromagnetsysteme vorgesehen sein. Es besteht selbstverständlich auch die Möglichkeit, hydraulische oder pneumatische Antriebselemente für die Kulissenstücke einzusetzen.In a particularly advantageous manner may be provided as drive elements for the link pieces electromagnet systems. Of course, it is also possible to use hydraulic or pneumatic drive elements for the link pieces.
Dabei besteht die Möglichkeit, dass die Bewegungsrichtungen der Antriebselemente einmal senkrecht zur Bewegungsrichtung des Mitnehmers und zum anderen parallel zur Bewegungsrichtung des Mitnehmers verlaufen, wobei im letzteren Falle die Bewegungsrichtung der Antriebselemente mittels je eines Umlenkhebels zur Bewegung der Kulissenstücke gegeneinander und voneinander weg umlenkbar sind.It is possible that the directions of movement of the drive elements once perpendicular to the direction of movement of the driver and the other parallel to the direction of movement of the driver, in the latter case, the direction of movement of the drive elements by means of a reversing lever for moving the link pieces against each other and away from each other are deflected.
In den Fällen, in denen die Antriebselemente außer Betrieb sind, kann in zweckmäßiger Weise am Umlenkhebel jeweils eine Handgetriebeanordnung vorgesehen sein, mit jeweils einem Griffteil, welches eine Drehbewegung um eine ortsfeste Achse in eine Drehbewegung des Umlenkhebels umwandelt.In cases where the drive elements are out of operation, a manual transmission arrangement can be provided in an expedient manner on the lever each with a handle part which converts a rotational movement about a stationary axis into a rotational movement of the reversing lever.
Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further advantageous embodiments and improvements of the invention can be found in the further subclaims.
Anhand der Zeichnungen, in denen drei Ausführungsbeispiele der Erfindung dargestellt sind, sollen die Erfindung, weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung und weitere Vorteile näher erläutert und beschrieben werden.With reference to the drawings, in which three embodiments of the invention are shown, the invention, further advantageous embodiments and improvements of the invention and further advantages will be explained and described in detail.
Es zeigen
- Fig. 1
- eine schematische Darstellung einer Antriebseinrichtung,
- Figuren 2 und 3
- eine erste Ausführungsform der Erfindung in unterschiedlichen Stellungen,
- Figuren 4 bis 7
- eine weitere Ausführungsform der Erfindung in unterschiedlichen Stellungen,
- Fig. 8
- eine dritte Ausgestaltung der Erfindung mit Handantrieb, und
- Fig. 9
- eine schematische Darstellung eines Endbereiches der Kulissenstücke mit einer Verriegelung.
- Fig. 1
- a schematic representation of a drive device,
- FIGS. 2 and 3
- a first embodiment of the invention in different positions,
- FIGS. 4 to 7
- a further embodiment of the invention in different positions,
- Fig. 8
- a third embodiment of the invention with manual drive, and
- Fig. 9
- a schematic representation of an end portion of the link pieces with a lock.
Es sei Bezug genommen auf die
Ein in der
Das bewegliche Kontaktstück 11 wird mit einer Antriebseinrichtung 15 angetrieben, welches eine Antriebsspindel 16 aufweist, die ein Außengewinde 17 besitzt, auf dem ein Schlitten 18 derart geführt ist, dass der Schlitten 18 sich bei einer Drehung der Spindel 16 entweder nach oben in Pfeilrichtung P1 oder nach unten in Pfeilrichtung P2 bewegt. Die Antriebsspindel 16 wird mittels eines aus zwei Zahnradgetrieberädern 19 und 20 zusammengesetzten Getriebes, das über einen Elektromotor 21 angetrieben wird, in Drehung versetzt. Am Schlitten 18 befindet sich ein Mitnehmer 22, der, wie aus den
Zu diesem Zwecke besitzt die Antriebseinrichtung zwei Kulissenstücke 23 und 24, von denen das eine Kulissenstück 23 drei Vertiefungen 25, 26 und 27 aufweist, wogegen das andere Kulissenstück 24 eine ebene Fläche 28 aufweist, gegen welche die offenen Seiten der Vertiefungen 25 bis 27 gerichtet sind.For this purpose, the drive device has two
Das eine Kulissenstück 23 ist mittels eines feststehenden Magnetsystems 29 betätigbar und zwar gemäß Pfeilrichtung P3; es kann demgemäß von dem anderen Kulissenstück 24 getrennt werden.The one
Die
Wenn der Mitnehmer 22, beispielsweise nach oben in Pfeilrichtung P1, bewegt werden soll, wird mittels der Elektromagneteinrichtung oder des Magnetsystems 29 das eine Kulissenstück 23 von dem anderen Kulissenstück 24 in Pfeilrichtung P3 abgezogen, wodurch die mittlere Vertiefung 26 den Mitnehmer 22 freigibt und somit der Mitnehmer 22 durch Drehung der Antriebsspindel 16 in Bewegung gesetzt werden kann. Dadurch wird das bewegliche Kontaktstück 11 entsprechend der Wirklinie 30 aus der gezeichneten Stellung in die Erdungsstellung bewegt. Diese Stellung wird durch die strichliert gezeichnete Stellung des Mitnehmers 22' dargestellt. Zur Verriegelung wird das eine Kulissenstück 23 in die strichlierte Stellung 23' gegen das andere Kulissenstück 24 verfahren, wodurch die obere Vertiefung 25 über den Mitnehmer geschoben wird und der Mitnehmer 22 in der oberen Vertiefung 25 festgehalten ist.If the
Wenn sich die Antriebsspindel 16 in entgegengesetzte Richtung verdreht, wird der Schlitten 18 in Pfeilrichtung P2 verfahren, so dass der Mitnehmer 22 in die Stellung 22" verfahren wird, wobei hierzu das eine Kulissenstück 23 wieder vom anderen Kulissenstück 24 getrennt ist, so dass der Mitnehmer 22 freigegeben ist und über die mittlere, dick ausgezogene Stellung in die in der Zeichnung unten befindliche Stellung, die durch 22" ausgedehnt ist, verfahren werden kann; nach Erreichen der Stellung 22" wird das eine Kulissenstück 23 gegen das andere Kulissenstück 24 gefahren, so dass der Mitnehmer 22 in der unteren Vertiefung 27 festgehalten wird.If the
Die Ansteuerung des Elektromagnetsystems 29 erfolgt nach Bedarf unter Berücksichtigung gewisser Verriegelungsbedingungen, die hier nicht näher erläutert werden sollen.The control of the
Die
In entsprechender Weise besitzt die Vertiefung 46 des zweiten Kulissenstückes 42 ebenfalls Endflächen 55 und 56, die jeweils auf gleicher Höhe wie die Endflächen 50 und 52 der Vertiefung 45 des ersten Kulissenstückes 41 liegen und ebenfalls senkrecht zur Bewegungsrichtung P1 des Schlittens 18 verlaufen.In a corresponding manner, the
Der leistenartige Vorsprung 48 des zweiten Kulissenstückes 42 besitzt ähnlich wie der leistenartige Vorsprung 47 des ersten Kulissenstückes 41 Stufenflächen 53 und 54 oder Stufenwände 53, 54, über die die Frontfläche des Vorsprunges 48 in die Bodenfläche der Vertiefung 46 übergeht.The strip-
Die leistenartigen Vorsprünge 47 und 48 liegen, wie oben erwähnt, übereinander, wobei sie sich im zusammengefahrenen Zustand, siehe
Es sei nun auf die
In der Darstellung gemäß
Die Ausgestaltung gemäß der
Der Antrieb des Motors 21 kann pneumatisch, hydraulisch oder elektrisch erfolgen. Es besteht natürlich auch die Möglichkeit eines Handantriebs. In gleicher Weise können das Getriebe 19, 20 auf unterschiedliche Weise ausgebildet sein. Mittels des Getriebes 19, 20 wird die Spindel 16 angetrieben, die ein sogenanntes Huberzeugungselement ist, welches die Aufgabe hat, eine Umdrehungsbewegung in eine lineare Bewegung des Schalters 18 umzuwandeln.The drive of the motor 21 can be pneumatic, hydraulic or electric. Of course, there is also the possibility of a manual drive. In the same way, the
Die Betätigung der Kulissenstücke 23, 24 beziehungsweise der Kulissenstücke 41, 42 kann, wie oben beschrieben, elektromagnetisch vorgenommen werden. Es besteht natürlich auch die Möglichkeit, andere Arten von Antrieben, insbesondere von hydraulischen oder pneumatischen Antrieben zu verwenden.The actuation of the
Es sei nun Bezug genommen auf die
Hier liegen die beiden Kulissenstücke 41 und 42 so nebeneinander, dass die Vorsprünge 47 und 48 jeweils in die Vertiefungen 46 und 45 eingreifen. Aus der
Bei der Ausführungsform nach den
Bei der Variante gemäß
Es wird Bezug genommen auf den einen Elektromagnet 82. Die Arbeitsweise des anderen Elektromagneten 81 sowie die Übertragung der Bewegung des Antriebes bei dem anderen Elektromagnetantrieb 81 ist dann entsprechend.Reference is made to the one
Aus dem Elektromagnetantrieb 82 ragt ein Stößel 83 heraus, der gelenkig über eine Achse 84 mit einem hier dreickförmig dargestellten Umlenkhebel 85 verbunden ist. Der Umlenkhebel 85 ist an einer ortsfesten Achse 86 gelenkig gelagert, und die Mittelachsen der Achsen 84 und 86 liegen etwa auf einer Linie, die senkrecht zur Bewegungsrichtung des Stößels 83 verläuft. An dem Umlenkhebel 85 ist eine weitere Achse 87 gelenkig angeordnet, an der ein weiterer Stößel 88 angelenkt ist, der mit dem Kulissenstück 42 verbunden ist. Der Umlenkhebel 85 ist demgemäß als eine Art Kniehebel ausgebildet und wirkt auch wie ein Kniehebel, wobei die Mittellinien der Achsen 86 und 87 auf einer Linie liegen, die parallel zur Bewegungsrichtung des Stößels 83 beziehungsweise des Mitnehmers 22 verläuft. Damit bilden die drei Achsen 84, 86 und 87 eine L-förmige Kniehebelanordnung, die die Bewegungsrichtung P2 des Stößels 83 in die Bewegungsrichtung P4 des Kulissenstückes 42 umwandelt. Daher könnte der Umlenkhebel 85, der hier dreieckförmig gezeichnet ist, auch als L-förmiger Kniehebel ausgebildet sein, wobei die feststehende Achse des Kniehebels im Knie liegen würde. Als Rückstellelement ist eine Schraubenfeder 89 vorgesehen, die ortsfest an der Achse 86 gelagert ist und zwei Arme 90 und 91 aufweist, die tangential und unter einem stumpfen Winkel zueinander von der Schraubenfeder 89 vorspringen und dort einerseits an einem ortsfesten Haltezapfen 92 und andererseits an der Achse 87 anliegen, wobei die Kraftwirkung dergestalt ist, dass dann, wenn der Stößel 83 entgegen der Pfeilrichtung P2 im Pfeilrichtung P1 verschoben wird, die Schraubenfeder 89 gespannt wird. Sobald das Elektromagnetsystem 82 abgeschaltet oder freigegeben wird, drückt die Feder 89 die Achse 87 entgegen der Pfeilrichtung P4 in Pfeilrichtung P4', so dass das Kulissenstück 42 gegen das Kulissenstück 41 gedrückt wird.From the
In gleicher Weise ist die Anordnung auch aufgebaut für das Elektromagnetsystem 81, wobei lediglich die Bewegungsrichtungen umgekehrt sind.In the same way, the arrangement is also constructed for the
An der Achse 84 greift ein Hebelgestänge 93 an, welches ein etwa L-förmiges Griffelement 94 aufweist, das in seinem Knie an einer ortsfesten Achse 95 drehbar gelagert ist. An dem freien, kürzeren Schenkel 96 des L-förmigen Griffes 94 ist eine Übertragungsstange 97 angelenkt, die an ihrem anderen Ende gelenkig mit der Achse 84 verbunden ist. Die Bewegung des Kulissenstücks 42 in Pfeilrichtung P4, also von dem Kulissenstück 41 weg, wird durch die Verschwenkung des Griffes 94 im Uhrzeigersinn U1 um die ortsfeste Achse 95 bewirkt, so dass der kurze Hebelarm 96 ebenfalls im Uhrzeigersinn U1 verschwenkt und die Übertragungsstange 97 in Pfeilrichtung P1 verschoben werden, wodurch über den Umlenkhebel 85 das Kulissenstück 42 vom Kulissenstück 41 abgezogen wird.At the
Selbstverständlich ist die Wirkungsweise der Griffanordnung für den Antrieb oder für die Bewegung des Kulissenstücks 41 analog, lediglich umgekehrt. Die Gleichheit der beiden Anordnungen wird dadurch unterstrichen, dass die entsprechenden Elemente beziehungsweise Komponenten mit einem "' " bezeichnet sind. Damit das Kulissenstück 41 von dem Kulissenstück 42 abgezogen werden kann, wird der Handgriff 94' entgegen dem Uhrzeigersinn um die feststehende Achse 95' verschwenkt, wodurch der Übertragungshebel 97' im Pfeilrichtung P1 verschoben und die Kniehebelanordnung 85' beziehungsweise der Umlenkhebel 85' so verschwenkt wird, dass das Kulissenstück 41 vom Kulissenstück 42 abgezogen wird.Of course, the operation of the handle assembly for the drive or for the movement of the
Selbstverständlich müssen hierfür besondere Verriegelungsbedingungen erfüllt sein, die aber hier für die Erfindung nicht von wesentlicher Bedeutung sind, da sie bei allen elektrischen Schaltgeräten innerhalb einer Schaltanlage eingehalten sein müssen.Of course, this special locking conditions must be met, but here are not essential to the invention, since they must be complied with in all electrical switching devices within a switchgear.
Es sei nun Bezug genommen auf die
In der Zeichnung
Bei den Ausführungsformen gemäß den
Bei den Ausführungen gemäß den
Es besteht auch die Möglichkeit, die Kulissenstücke durch zwei parallel verlaufende Kulissenstückelemente auszubilden, die miteinander verbunden sind, so dass anstatt eines Mitnehmers zwei Mitnehmerzapfen vorgesehen sind, die zwischen den beiden Kulissenstückelementen verlaufen und in entgegen gesetzte Richtungen vorspringen.It is also possible to form the link pieces by two parallel sliding piece elements, which are interconnected, so that instead of a driver two driving pins are provided, between the two Sliding link elements and project in opposite directions.
Die Erfindung ist anhand eines Schaltgerätes, hier eines Trenn- und Erdungsschalters, beschrieben worden. Es besteht natürlich auch die Möglichkeit, die Kulissensteuerung gemäß den
- 1010
- Schaltgerätswitchgear
- 1111
- bewegliches Kontaktstückmovable contact piece
- 1212
- Leitungszugcable run
- 1313
- feststehendes Kontaktstück auf Hochspannungfixed contact piece to high voltage
- 1414
- feststehendes Kontaktstück auf Erdpotentialfixed contact piece at earth potential
- 1515
- Antriebseinrichtungdriving means
- 1616
- Antriebsspindeldrive spindle
- 1717
- Außengewindeexternal thread
- 1818
- Schlittencarriage
- 1919
- ZahnradgetrieberadZahnradgetrieberad
- 2020
- ZahnradgetrieberadZahnradgetrieberad
- 2121
- Elektromotorelectric motor
- 2222
- Mitnehmertakeaway
- 2323
- erstes Kulissenstückfirst set piece
- 2424
- zweites Kulissenstücksecond set piece
- 2525
- Vertiefungdeepening
- 2626
- Vertiefungdeepening
- 2727
- Vertiefungdeepening
- 2828
- ebene Flächeflat surface
- 2929
- feststehendes Magnetsystem, Elektromagneteinrichtungfixed magnet system, electromagnetic device
- 3030
- Wirklinieline of action
- 4040
- Antriebseinrichtungdriving means
- 4141
- erstes Kulissenstückfirst set piece
- 4242
- zweites Kulissenstücksecond set piece
- 4343
- Elektromagnetsystem, Magnetsystem, ElektromagneteinrichtungElectromagnet system, magnet system, electromagnetic device
- 4444
- Elektromagnetsystem, Magnetsystem, ElektromagneteinrichtungElectromagnet system, magnet system, electromagnetic device
- 4545
- Vertiefungdeepening
- 4646
- Vertiefungdeepening
- 4747
- leiterartiger VorsprungLadder-like projection
- 4848
- leiterartiger VorsprungLadder-like projection
- 4949
-
Stufenwand vom Vorsprung 47Step wall from the
projection 47 - 5050
-
Endfläche der Vertiefung 45End surface of the
recess 45 - 5151
-
Stufenwand von Vorsprung 47Step wall of
projection 47 - 5252
-
Endfläche der Vertiefung 45End surface of the
recess 45 - 5353
-
Stufenflächenwand des Vorsprungs 48Step surface wall of the
projection 48 - 5454
-
Stufenflächenwand des Vorsprungs 48Step surface wall of the
projection 48 - 5555
- Endfläche der Vertiefung 46End surface of the recess 46th
- 5656
- Endfläche der Vertiefung 46End surface of the recess 46th
- 5757
- Raumroom
- 5858
- Raumroom
- 5959
- Raumroom
- 6060
- RückstellelementReturn element
- 6161
- RückstellelementReturn element
- 7070
- Fortsatzextension
- 7171
- LanglochLong hole
- 7272
- Zapfen, SchraubeTenon, screw
- 8181
- ElektromagnetantriebElectromagnetic drive
- 8282
- ElektromagnetantriebElectromagnetic drive
- 8383
- Stößeltappet
- 8484
- Achseaxis
- 8585
- UmlenkhebelUmlenkhebel
- 8686
- ortsfeste Achsefixed axis
- 8787
- weitere Achseanother axis
- 8888
- weitere Stößelmore pestles
- 8989
- Schraubenfedercoil spring
- 9090
- Armpoor
- 9191
- Armpoor
- 9292
- Zapfenspigot
- 9393
- Hebelgestängelever linkage
- 9494
- GriffHandle
- 9595
- ortsfeste Achsefixed axis
- 9696
- kürzerer Hebelarmshorter lever arm
- 9797
- Übertragungsstangetransmission rod
Claims (9)
- Drive device for a multi-position switching apparatus, for example for a disconnecting and earthing switch, the movable contact piece (11) of which can be brought into different positions: switched-on position, disconnected position, earthing position, and back, comprising a carrier (22), which can be moved linearly by means of a linear motion drive (18, 16), wherein a controllable link motion (41, 42), which retains and locks the carrier (22) in the different positions, is provided, characterized in that the link motion (41, 42) has two link pieces (23, 24; 41, 42) lying opposite one another, of which at least one of the link pieces (23, 24; 41, 42) has depressions for receiving the carrier (22), the link pieces (23, 24; 41, 42) can be drawn apart from one another by means of at least one drive, so that the carrier (22) is freely movable in the separated position of the two link pieces (23, 24; 41, 42, and systems of electromagnets (29; 43, 44; 81, 82) or pneumatic or hydraulic systems are provided as drive elements (43, 44, 81, 82) for the link pieces (23; 41, 42).
- Drive device according to Claim 1, characterized in that one of the link pieces (23) has three depressions (25, 26, 27), in which the carrier (22) is retained, wherein the link piece (23) with the depressions can be drawn apart from the other link piece (24) by means of a drive (29), so that the carrier (22) is freely movable in the separated position of the two link pieces (23, 24).
- Drive device according to Claim 2, characterized in that the other link piece (24) has a planar surface on the side facing the link piece (23) with the depressions and is mounted fixedly in place.
- Drive device according to Claim 1, characterized in that the link motion has two link pieces (41, 42), each of which has a depression (45, 46) and a respective strip-like projection (47, 48) within the depression (45, 46), wherein the strip-like projections (47, 48) are offset with respect to one another, so that, when the two link pieces (41, 42) are joined together, the strip-like projections overlap one another and respectively form between them and the end faces of the depressions (45, 46) a receiving space (57, 58, 59), which serves for receiving the carrier in one of the three positions in each case.
- Drive device according to Claim 4, characterized in that the strip-like projections (47, 48) are respectively delimited by stepped walls (49, 51; 53, 54), of which the one stepped walls (51, 53) form between them a receiving space (58) and the other stepped walls (49) form in each case with the end faces (50, 55; 54, 52, 56) of the depressions the further receiving spaces (57, 59).
- Drive device according to Claim 4, characterized in that, at the opposite ends, with respect to the direction of movement of the carrier (22), of the link pieces (41, 42), there is formed on one of the link pieces at least one continuation (70), which at least partially covers over the second link piece (42), and in that in the continuation (70) there is provided a slot (71), in which a pin (72) fastened to the second link piece (72), preferably a grub screw, engages, wherein the length of the slot (71) corresponds to the path of movement of one of the link pieces (41, 42), so that, after normal displacement of the second link piece (42) or of the first link piece (41), the slot (71) with the pin (72) prevents an additional, inadmissible movement of the first link piece (41) or of the second link piece (42).
- Drive device according to one of the preceding claims, characterized in that the directions of movement of the drive elements (43, 44) act on the link pieces (41, 42) perpendicularly to the direction of movement of the carrier (22).
- Drive device according to one of Claims 1 to 6, characterized in that the direction of movement of the drive elements (81, 82) extend parallel to the direction of movement of the carrier (22) and in that the movement of the drive elements (81, 82) can be deflected towards one another and away from one another by means of in each case a deflecting lever (85, 85') for the movement of the link pieces (41, 42).
- Drive device according to Claim 8, characterized in that on the deflecting lever (85, 85') there is respectively provided a manual gear mechanism (93, 93'), with in each case a handle part (94, 94'), which converts a rotational movement about a fixed axis (95, 95') into a rotational movement of the deflecting lever (85, 85').
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2009/006141 WO2011023205A1 (en) | 2009-08-25 | 2009-08-25 | Drive device, in particular for a multi-position switching apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2471081A1 EP2471081A1 (en) | 2012-07-04 |
EP2471081B1 true EP2471081B1 (en) | 2017-04-19 |
Family
ID=42110081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09778086.0A Active EP2471081B1 (en) | 2009-08-25 | 2009-08-25 | Drive device for a multi-position switching apparatus |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2471081B1 (en) |
CN (2) | CN102598178B (en) |
HK (1) | HK1171285A1 (en) |
WO (1) | WO2011023205A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011111183B4 (en) * | 2011-08-25 | 2022-01-27 | Abb Power Grids Switzerland Ag | Driving device for a multi-position switch |
EP2728600B1 (en) | 2012-10-31 | 2018-02-21 | ABB Schweiz AG | Switch assembly for a medium or high voltage switchgear, comprising a three-position switch |
EP2887372A1 (en) * | 2013-12-20 | 2015-06-24 | Siemens Aktiengesellschaft | Mechanical switching arrangement suitable for controlling high-voltage electrical contacts |
GB201410728D0 (en) * | 2014-06-16 | 2014-07-30 | Eaton Ind Netherlands Bv | Retraction mechanism |
ES2609049B1 (en) * | 2015-10-13 | 2017-11-07 | Ormazabal Corporate Technology, A.I.E. | High voltage electrical device control system |
FR3058828B1 (en) * | 2016-11-14 | 2020-02-21 | Schneider Electric Industries Sas | OPERATION SELECTOR OF AN EARTHING SWITCH |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2325382A (en) * | 1942-01-30 | 1943-07-27 | Gen Electric | Operating mechanism for electric switches |
US2571960A (en) * | 1949-10-20 | 1951-10-16 | Westinghouse Electric Corp | Grounding switch operating mechanism |
DE3606458A1 (en) * | 1986-02-27 | 1987-09-03 | Siemens Ag | Electromechanical locking arrangement |
DE19534392A1 (en) * | 1995-09-16 | 1997-03-20 | Abb Patent Gmbh | Drive for the movable contact piece of an isolating earthing switch |
JP4869043B2 (en) * | 2006-11-30 | 2012-02-01 | 三菱電機株式会社 | Ground switch |
-
2009
- 2009-08-25 EP EP09778086.0A patent/EP2471081B1/en active Active
- 2009-08-25 WO PCT/EP2009/006141 patent/WO2011023205A1/en active Application Filing
- 2009-08-25 CN CN200980162311.5A patent/CN102598178B/en active Active
- 2009-09-25 CN CN200920174920.XU patent/CN201681752U/en not_active Expired - Lifetime
-
2012
- 2012-11-22 HK HK12111973.4A patent/HK1171285A1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
HK1171285A1 (en) | 2013-03-22 |
EP2471081A1 (en) | 2012-07-04 |
CN201681752U (en) | 2010-12-22 |
CN102598178A (en) | 2012-07-18 |
WO2011023205A1 (en) | 2011-03-03 |
CN102598178B (en) | 2015-07-29 |
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