EP4385050A1 - Contacteur double coupure bi-directionel - Google Patents
Contacteur double coupure bi-directionelInfo
- Publication number
- EP4385050A1 EP4385050A1 EP22762130.7A EP22762130A EP4385050A1 EP 4385050 A1 EP4385050 A1 EP 4385050A1 EP 22762130 A EP22762130 A EP 22762130A EP 4385050 A1 EP4385050 A1 EP 4385050A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arc
- fins
- contacts
- movable
- fixed
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/346—Details concerning the arc formation chamber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
Definitions
- TITLE BI-DIRECTIONAL DOUBLE BREAK CONTACTOR
- the technical field of the invention is that of contactor chambers.
- the present invention relates to a bi-directional double-break contactor and more particularly a bi-directional double-break contactor comprising in all two blocks of fins allowing the extinction of two electric arcs simultaneously.
- the switches are generally provided with two electrical contacts making it possible to establish an electrically conductive connection.
- the contacts separate, electric arcs appear accompanied by high thermal stress as well as difficulty in extinguishing the electrical connection. It is therefore necessary that these arcs be extinguished quickly.
- patent EP 2463876A1 presents an invention making it possible to cut electric arcs from a bi-directional double-break contactor. This is made up of two extinguishing zones per breaking zone, ie four extinguishing zones in this contactor. For each cut-off zone, the two extinction zones are distinct and perpendicular to one another.
- One embodiment comprises for each of the quenching zones a block of fins, that is four blocks of fins.
- the contactor includes one extinguishing zone which is a fin block and the other extinguishing zone is an arc spreader plate.
- each fin block there are two arc guides per fin block each extending from an electrical contact of the corresponding switch, and one arc guide extending from each plate. arch spreader.
- this solution is cumbersome and requires a great deal of equipment due to the two distinct extinguishing zones perpendicular to each other per cut-off zone.
- the invention offers a solution to the problems mentioned above, by making it possible to increase the dissipation power of the deionization fins while simplifying the operation of the contactor by reducing the number of parts inside the contactor. This simplification makes it possible to reduce the number of parts and thus to increase the surface of the fins to help dissipate electric arcs.
- a first aspect of the invention relates to a bi-directional double-break contactor comprising: a movable bridge between a closed state and an open state, comprising a first movable contact and a second movable contact, and a first fixed contact opposite the movable contact and a second fixed contact opposite the movable contact, in which in the closed state the first and the second movable contact are in contact with the first and the second contact respectively fixed and in the open state the first and the second mobile contact are spaced apart with respectively the first and the second fixed contact, two magnets able to generate a magnetic field of constant direction so as to generate a magnetic force to move an arc appearing between the fixed contacts and the movable contacts of the movable bridge passing from a closed state to an open state, two blocks of fins each having: o a first and a second end o fins between the first end and the second end of the corresponding block of fins, o a first and a second extinguishing zone each formed by the fins, four arc guides
- the invention makes it possible to reduce the number of parts of the contactor by using a block of fins for two extinguishing zones. Furthermore, having a single fin block without a second quenching zone (either a fin block or an arc spreader plate) separate and perpendicular to this fin block allows for increased fin area and increase the interfin volume. The increased surface area of the fins makes it possible to improve its heat dissipation and therefore to reduce heating of the contactor.
- the inter-fin volume in the fin blocks makes it possible to increase the dissipation power of the deionization fins by reducing and perhaps even eliminating the suffocation of the arcs to be sectioned.
- the contactor according to one aspect of the invention may have one or more additional characteristics from those mentioned in the following paragraphs, considered individually or according to all technically possible combinations. :
- the bi-directional double-break contactor comprises four arc guides each moving from one of the corresponding fixed contacts to respectively one of the corresponding fin blocks.
- Each fin block is therefore opposite four arc guides and the number of arc guides is therefore eight: the arc from the movable bridge towards the fin blocks the four other arc guides moving from the fixed contacts make it possible to guide the arc from the fixed contacts towards the fin blocks.
- the eight arc guides are independent of each other, four arc guides are branches extending from the movable contacts to the fin blocks and four arches are branches extending from the fixed contacts to the fin blocks.
- the bi-directional double-break contactor comprises a first and a second fixed contact supports electrically insulated from each other respectively supporting the first and second fixed contact and two of the four arc guides leading from the fixed contacts belong to the first fixed contact support each extending from the first fixed contact towards the fin blocks and the other two of the four arc guides leading from the fixed contacts belong to the second fixed contact support each extending from the second fixed contact towards the fin blocks.
- these four arc guides leading from the fixed contacts are surfaces of the first and second fixed contact supports leading from the fixed contacts to the fin blocks.
- the four arc guides pointing from the fixed contacts are surfaces of the first and second fixed contact supports pointing from the fixed contacts towards the fin blocks.
- a pair of arc guides among the four arc guides pointing from the movable contacts is a plate comprising a first and a second arc guide linked to a base, the first and the second arc guide each extending in one direction between respectively the first and second movable contacts of the bridge towards the corresponding block of fins.
- the branches make it possible to guide the arc from the mobile bridge to the corresponding fin blocks.
- the two arc guides of a pair of arc guides are separated from each other by a groove and are parallel to each other. other.
- the fins of each block of fins each comprise two portions of the two distinct extinguishing zones of the corresponding block of fins, each of the two portions comprising a groove and in that for each of the pairs of arc guides, the arc guides extend from the base of the arc guide plate toward the grooves of the fin blocks.
- the grooves in the fin blocks allow the arc to be guided over the fin block.
- each arc guide leading from the movable contacts are connected into a set, the set is a plate comprising four arc guides connected to a base, each arc guide extends from the moving contacts to the fin blocks. This makes it possible to simplify the assembly by having a single piece.
- the fins of each block of fins each comprise a receiving surface and in that some of the surfaces reception are offset towards the fixed contact with respect to the other reception surfaces aligned in the same plane of the same block of fins. This makes it possible to match the arc during its propagation from the first and the second movable contacts to the block of fins.
- each arc guide is fixed to the first end of the block of fins.
- FIG.1 is a block diagram of an interrupting chamber of a contactor according to one embodiment of the invention.
- FIG.2 is a block diagram of the double electrical contacts of the double-break contactor.
- FIG.3 is a top view of part of the interrupting chamber shown in Figure 1 following a flow of current.
- FIG.4 is a top view of part of the interrupting chamber shown in Figure 1 following a flow of current.
- FIG.5 is a perspective view of part of the interrupting chamber shown in Figure 1.
- FIG.6 is a sectional view of part of the contactor comprising the interrupting chamber shown in Figure 1 with electric arcs.
- FIG.7 is a sectional view of part of the contactor comprising the arcing chamber shown in Figure 1 with electric arcs sectioned by fins.
- the invention relates to a bi-directional double-break contactor.
- the bi-directional contactor directional double break comprises a movable bridge 2 comprising a first movable contact 2a, a second movable contact 2b, a first fixed contact 1a, a second fixed contact 1b.
- the movable contact 2a is opposite the first fixed contact 1a and the second movable contact 2b is opposite the second fixed contact 1b.
- Figure 2 shows the movable bridge 2 in the open state. When the movable bridge 2 is in the closed state, a current / moves from the first fixed contact 1a to the second fixed contact 1b crossing the movable bridge 2.
- the current / flows in a first current direction electrical from the first fixed contact 1a to the second fixed contact 1b and therefore flows in a first physical direction 13 when the current flows between the first fixed contact 1a and the movable contact 2a and a second physical direction 14 opposite to the first physical direction 13 when the current flows between the second fixed contact 1b and the moving contact 2b.
- the electrical flow of the current / can be reversed in such a way that the current / moves from the second fixed contact 1b to the first fixed contact 1a by crossing the movable bridge 2, the direction of the physical current is therefore reversed at the levels of the contacts 1a, 2a, 1b, 2b.
- a bi-directional double-break contactor 30 is shown according to a first embodiment of the invention.
- the contactor 30 comprises an interrupting chamber, the movable bridge 2 located in the interrupting chamber as well as the first fixed contact 1a and the second fixed contact 1b, together called the fixed contacts 1, only one of which is shown in FIG. .
- the fixed contacts 1 are also located in the interrupting chamber opposite the mobile bridge 2.
- the mobile bridge 2 is either in a closed state when the mobile bridge 2 is in contact with the fixed contacts 1 or in a closed state. open when the movable bridge 2 is distant (separated) from the fixed contacts 1.
- the contactor 30 comprises a first and a second block of fins 4, 5 each comprising a first end 42, 52 and a second end 43, 53 opposite the first end 42, 52.
- the second end 43, 53 is the end closest to the fixed contacts 1 .
- a first pair of arc guides 7 are attached to the first end 42 of the first block of fins 4 and a second pair of arc guides 8 are attached to the first end 52 of the second block of fins 5.
- Each pair arc guides 7, 8 comprises two arc guides 72a, 72b, 82a, 82b.
- the two-way double-break contactor 30 comprises, in this embodiment, a first and a second fixed contact support 20 isolated from one of the other electrically, the first and the second fixed contact supports 20 each respectively support the first fixed contact 1a and the second fixed contact 1b.
- the bi-directional double-break contactor comprises a first and a second pair of arc guides 21, 22 moving from the first fixed contact 1a and the second fixed contact 1b towards respectively the first fin block 4 and the second fin block 5.
- the first and second fixed contact supports 20 each comprise two of the four arc guides 21, 22.
- the contactor 30 comprises a support block comprising the two fixed contact supports 20 for the two fixed contacts 1, comprising an electrically insulating part between the two fixed contact supports 20.
- the fixed contact supports 20 comprise
- FIG. 1 is shown that two arc guides 21, 22.
- Each arc guide 21, 22 of the fixed contact 1 is a surface of a fixed contact support 20
- the fin blocks 4, 5 are composed of a plurality of fins 100 stacked and spaced from each other.
- Each fin 100 of each block of fins 4, 5 comprises a receiving surface in such a way that some of the receiving surfaces are offset towards the fixed contacts 1 with respect to the other receiving surfaces of the same block of fins, aligned in the same plane. This offset forms a curve making it possible to best match the arcs 9, 10 forming from the fixed contacts 1 and the movable bridge 2.
- Figure 1 shows the movable bridge 2 in the open state.
- two electric arcs 9.10 can be created between the fixed contacts 1 and the movable bridge 2. These move towards the fin blocks 4, 5.
- Arcs 9, 10 have two attachment points called arc feet.
- the arc feet move on the movable contacts 2a and 2b then on the arc guides 72a, 72b, 82a, 82b.
- the arc guides 72a, 72b, 82a, 82b at the level of the movable bridge 2 are branches.
- the arc feet move on the fixed contacts 1a, 1b then on the four arc guides 21, 22 belonging to the first and second fixed contact supports 20.
- the contactor 30 comprises eight arc guides 72a, 72b, 82a, 82b, 21, 22 independent of each other others.
- the arc guides 72a, 72b, 82a, 82b, 21, 22 are therefore not linked as a pair of arc guides 7, 8.
- one of the fins 100 of each fin block 4, 5 is an inlet fin 101 located at the second end 43, 53 of the fin blocks 4, 5.
- the fins 100 are of identical shape. Entry fin 101 is the fin closest to the fixed contacts 1 .
- the inlet fin 101 is the fin most offset towards the fixed contact with respect to the other fins 100.
- the pairs of arc guides 7, 8 are each formed of a base 71, 81 and two arc guides 72a, 72b, 82a, 82b linked to the base 71, 81.
- the arc guides 72a, 72b, 82a, 82b are here in the form of a branch.
- the arc guides 72a, 72b of the first pair of arc guides 7 are fixed to the first end 42 of the first fin block 4.
- the arc guides 82a, 82b of the second pair of arc guides 8 are fixed to the first end 52 of the second block of fins 5.
- the movable bridge 2 is located between the two bases 71, 81.
- a length of the movable bridge 2 located opposite the bases 71, 81 is substantially identical to a length of each base 71, 81.
- the first pair of arc guides 7 comprises a first 72a and a second bow guide 72b.
- the first arc guide 72a of the first pair of arc guides 7 faces the first moving contact 2a.
- the second pair of arc guides 8 includes a first 82a and a second arc guide 82b.
- the first arc guide 82a of the second pair of arc guides 8 faces the first moving contact 2a.
- the pairs of arc guides 7, 8 allow to create a point of attachment of the feet of arcs in order to create a path to help convey it to the fin blocks.
- the pairs of arc guides 7, 8 are two plates of length substantially identical to the length of the movable bridge 2.
- the first and second pairs of arc guides 7, 8 are vis-à-vis the movable bridge 2 and more precisely vis-à-vis respectively the first and second movable contacts 2a, 2b.
- the first and the second pair of arc guides 7, 8 extend from the movable bridge 2 towards the first fin block 4 respectively. and the second block of fins 5.
- the first 7 and the second pair of arc guides 7, 8 are fixed respectively to the first block of fins 4 and to the second block of fins 5.
- the contactor 30 comprises a set of four arc guides connecting the arc guides 72a, 72b, 82a, 82b instead of two pairs of arc guides 7, 8 in the embodiment shown.
- the assembly comprises a base from which the four arc guides 72a, 72b, 82a, 82b extend towards the fin blocks 4, 5.
- the arc guides 72a, 72b, 82a, 82b are here in the form of a branch.
- the contactor 30 comprises two magnets 11, 12 each having two polarities (north and south), the movable bridge 2 is located between the two magnets 11, 12.
- the first magnet 11 has a south pole facing of the movable bridge 2.
- the second magnet 12 has a north pole opposite the movable bridge 2.
- the two magnets 11, 12 generate a magnetic field of constant direction from a first magnet 12 to a second magnet 11.
- the direction of the magnetic field is represented by the arrow 6.
- the magnetic field forces the displacement of the electric arcs 9, 10 towards the fin blocks 4, 5 according to Laplace's law.
- Figure 3 shows a flow of current I, such that the first physical direction 13 flows from the first fixed contact 1a to the first moving contact 2a and the second physical direction 14 flows from the second moving contact 2b to a second fixed contact 1b.
- a first electric arc 9 propagates from the first movable contact 2a and moves by a magnetic force generated by the magnetic field towards the first block of fins 4.
- the first electric arc 9 is guided by the first arc guide 72a from the first pair of arc guides 7 to the first block of fins 4.
- a second electric arc 10 propagates from the second movable contact 2b and moves by a magnetic force generated by the magnetic field towards the second block of fins 5.
- the second electric arc 10 is guided by the second arc guide 82b of the second pair of arc guides 8 towards the second fin block 5.
- the current / flows in a second direction of electric current from the second fixed contact 1b to the first fixed contact 1a.
- the second direction of electric current is reversed with respect to the first direction of electric current of FIG. 3.
- the first physical direction 13 flows from the first moving contact 2a to the first fixed contact 1a and the second physical direction 14 flows from the second fixed contact 1b to the second movable contact 2b.
- the first electric arc 9 propagates from the first movable contact 2a and moves by a magnetic force generated by a magnetic field towards the second block of fins 5.
- the first electric arc 9 is guided by the first arc guide 82a from the second pair of arc guides 8 to the second block of fins 5.
- the second electric arc 10 propagates from the second movable contact 2b and moves by a magnetic force generated by a magnetic field towards the first block of fins 4.
- the second electric arc 10 is guided by the second arc guide 72b of the first pair of arc guides 7 towards the first fin block 4.
- Each block of fins 4, 5 comprises a first and a second grooves 102 located along the fins 100.
- Each fin 100 therefore comprises on either side two notches such as the notches on one side of the fins of a block of fins 4, 5, together form a first groove 102 and the other notches on the other sides of the fins 100 of a block of fins 4, 5 form the second groove 102
- the first and the second grooves 102 of the first block of fins 4 each have a bottom located respectively opposite the first and second arc guides 72a, 72b of the first pair of arc guides 7 thus making it possible to guide the electric arcs 9, 10
- the first and the second grooves 102 of the second block of fins 5 each comprise a bottom located respectively opposite the first and second arc guides 82a, 82b of the second pair of arc guides 8. grooves 102 make it possible to predetermine the exact place where the electric arc 9, 10 will be guided and contained to be extinguished.
- Each groove 102 is V-shaped, each groove 102 can also be U-shaped or in any other shape allowing adequate guidance of the arcs 9, 10
- Each block of fins 4, 5 includes a recess 103 positioned between the two grooves 102 of the block of fins 4, 5. This recess 103 makes it possible to reduce the mass of the contactor 30.
- Figure 6 shows a sectional view of an interrupting chamber of the contactor 30 shown with a plurality of electric arcs corresponding to the displacement of the second electric arc 10 moving from the movable bridge 2 towards the second block of fins 5 passing through the second pair of arc guides 8.
- the electric arc 10 closest to the second block of fins 5 is severed at the same time by the various fins 100 during its propagation.
- the contactor 30 comprises a wall 31 making it possible to prevent gases or particles from escaping from the interrupting chamber.
- the contactor 30 also comprises a movable rod 32 and an affirmation spring 33.
- the movable bridge 2 is normally open, that is to say the rest position of the movable bridge 2 is distant from the fixed contacts 1 .
- the mobile bridge 2 can also be normally closed, that is to say that in the rest position, the mobile bridge 2 is in contact with the fixed contacts 1.
- Figure 7 shows a sectional view of an interrupting chamber of the contactor 30 representing the first electric arc 9 and the second electric arc 10.
- the first electric arc 9 is severed by the fins 100 of the first block of fins 4.
- the second electric arc 10 is severed by the fins 100 of the second block of fins 5.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2108642A FR3126168B1 (fr) | 2021-08-11 | 2021-08-11 | Contacteur double coupure bi-directionnel |
| PCT/FR2022/051527 WO2023017220A1 (fr) | 2021-08-11 | 2022-07-29 | Contacteur double coupure bi-directionel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4385050A1 true EP4385050A1 (fr) | 2024-06-19 |
| EP4385050B1 EP4385050B1 (fr) | 2025-06-11 |
Family
ID=78086500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22762130.7A Active EP4385050B1 (fr) | 2021-08-11 | 2022-07-29 | Contacteur double coupure bi-directionel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240363296A1 (fr) |
| EP (1) | EP4385050B1 (fr) |
| CN (1) | CN117813668A (fr) |
| FR (1) | FR3126168B1 (fr) |
| WO (1) | WO2023017220A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3152635A1 (fr) * | 2023-08-28 | 2025-03-07 | Safran Electrical & Power | Contacteur électrique haute tension comprenant quatre chambres de coupure |
| FR3154850A1 (fr) | 2023-10-30 | 2025-05-02 | Airbus Operations (S.A.S.) | Contacteur électrique compact comprenant au moins un dissipateur d’arcs électriques, aéronef comportant au moins un tel contacteur électrique |
| FR3157967A1 (fr) * | 2023-12-27 | 2025-07-04 | Safran Electrical & Power | Dispositif de protection électrique à haute tension continu par fusible |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011425A (en) * | 1975-01-03 | 1977-03-08 | I-T-E Imperial Corporation | Arc chute extension for increased interruption rating |
| DE102006035844B4 (de) * | 2006-08-01 | 2008-06-19 | Schaltbau Gmbh | Schütz für Gleichstrom- und Wechselstrombetrieb |
| DE102007054958A1 (de) * | 2007-11-17 | 2009-06-04 | Moeller Gmbh | Schaltgerät für Gleichstrom-Anwendungen |
| CN102893360B (zh) * | 2010-05-28 | 2015-12-16 | Abb研究有限公司 | Dc开关装置 |
| EP2463876A1 (fr) | 2010-12-07 | 2012-06-13 | Eaton Industries GmbH | Commutateur doté d'une chambre d'extinction |
| DE102011118418B4 (de) * | 2011-11-12 | 2015-07-16 | Ellenberger & Poensgen Gmbh | Schaltsystem |
| EP2600367A1 (fr) * | 2011-11-29 | 2013-06-05 | Eaton Industries GmbH | Appareil de commutation pour applications à courant continu |
| US8368492B1 (en) * | 2012-08-24 | 2013-02-05 | Eaton Corporation | Bidirectional direct current electrical switching apparatus |
| DE102012112202A1 (de) * | 2012-12-13 | 2014-06-18 | Eaton Electrical Ip Gmbh & Co. Kg | Polaritätsunabhängiges Schaltgerät zum Führen und Trennen von Gleichströmen |
| DE102015000796B4 (de) * | 2015-01-22 | 2017-03-02 | Schaltbau Gmbh | Schaltgerät mit permanentmagnetischer Lichtbogenlöschung |
| FR3050311B1 (fr) * | 2016-04-15 | 2020-12-04 | Schneider Electric Ind Sas | Disjoncteur electrique a courant continu |
| EP3561831B1 (fr) * | 2018-04-24 | 2022-10-26 | ABB Schweiz AG | Interrupteur électrique |
-
2021
- 2021-08-11 FR FR2108642A patent/FR3126168B1/fr active Active
-
2022
- 2022-07-29 CN CN202280055779.XA patent/CN117813668A/zh active Pending
- 2022-07-29 EP EP22762130.7A patent/EP4385050B1/fr active Active
- 2022-07-29 WO PCT/FR2022/051527 patent/WO2023017220A1/fr not_active Ceased
- 2022-07-29 US US18/682,683 patent/US20240363296A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP4385050B1 (fr) | 2025-06-11 |
| US20240363296A1 (en) | 2024-10-31 |
| FR3126168A1 (fr) | 2023-02-17 |
| FR3126168B1 (fr) | 2023-10-20 |
| CN117813668A (zh) | 2024-04-02 |
| WO2023017220A1 (fr) | 2023-02-16 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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