EP4282032A1 - Verfahren zur herstellung einer kontaktierungseinheit, kontaktierungseinheit und system zur berührungslosen energieübertragung - Google Patents
Verfahren zur herstellung einer kontaktierungseinheit, kontaktierungseinheit und system zur berührungslosen energieübertragungInfo
- Publication number
- EP4282032A1 EP4282032A1 EP21839971.5A EP21839971A EP4282032A1 EP 4282032 A1 EP4282032 A1 EP 4282032A1 EP 21839971 A EP21839971 A EP 21839971A EP 4282032 A1 EP4282032 A1 EP 4282032A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connector
- stranded wire
- individual wires
- end region
- cavity
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/187—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping combined with soldering or welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
Definitions
- the invention relates to a method for producing a contacting unit with a stranded wire, which includes a plurality of parallel individual wires, and a connector.
- the invention also relates to a contacting unit, in particular for a system for contactless energy transmission, which includes a stranded wire, which includes a plurality of parallel individual wires, and a connector.
- the invention also relates to a system for contactless energy transmission.
- a system for contactless energy transmission is known from DE 100 53 373 B4.
- the system includes a feed that injects a medium frequency alternating current into an elongated primary conductor.
- Mobile loads can be moved along the primary conductor and each have a coil that is inductively coupled to the primary conductor. This inductive coupling means that energy can be transmitted from the primary conductor to the consumer. It is also conceivable that one or more primary coils with a plurality of turns are provided on the primary side.
- primary conductors that generate a magnetic field are preferably laid in a floor or along one or more rails.
- the primary conductors are in the form of stranded wires with a plurality of parallel individual wires that are insulated from one another.
- the stranded wire is electrically and mechanically connected to a connector, for example a cable lug or a ferrule.
- the connector is then contacted with the feed, for example by screwing or using clamps.
- the stranded wire whose individual wires are each coated with an electrically insulating layer of lacquer, is tinned in the contact area beforehand. This can be done in a tin bath in a solder pot or by burning off the paint layer with a blowtorch and applying solder. Closed tubular cable lugs serve in particular as a cavity for the
- the method of hot crimping is also known.
- the stranded wire with the connector is inserted into a mostly hydraulic or pneumatic pliers.
- a very large electrical surge current is simultaneously conducted through the pliers jaws, which leads to heating of the connector and the stranded wire located between them.
- the lacquer layer becomes plastically deformable and is pushed out of the crimping point by the pressure of the pliers.
- the stranded wires make electrical contact with each other and with the connector. In this way, a contacting unit can be prefabricated in a factory.
- such a machine is very large, complex and expensive. It is by no means suitable for installation work on construction sites. If the exact cable lengths are not known, which is usually the case, pre-assembling cables is not practical.
- the invention is based on the object of further developing a method for producing a contacting unit, a contacting unit, in particular for a system for contactless energy transmission, and a system for contactless energy transmission.
- the object is achieved according to the invention by a method for producing a contacting unit having the features specified in claim 1.
- Advantageous refinements and developments are the subject of the dependent claims.
- the object is also achieved according to the invention by a contacting unit having the features specified in claim 11 .
- the object is also achieved according to the invention by a system for contactless energy transmission with the features specified in claim 12 .
- a method according to the invention for producing a contacting unit with a stranded wire which comprises a plurality of parallel individual wires, and a connector
- an end area of the stranded wire is first inserted into the connector. Then the Connector crimped to the end of the stranded wire. The end area of the stranded wire is then soldered to the connector.
- the crimping creates a mechanical connection between the stranded wire and the connector.
- the soldering also creates an electrical connection between the stranded wire and the connector.
- the contacting unit produced in this way has high mechanical strength, in particular for absorbing tensile forces, and low contact resistance.
- the contacting unit can be produced on construction sites in a short time using simple tools such as crimping pliers and a soldering iron. Operating costs are thus saved during production and the contacting unit has a long service life.
- the method according to the invention can also be used to connect two strands together and to repair a separated strand.
- the end regions of the stranded wire to be connected are each inserted into a connector designed as a cable lug.
- the two cable lugs are then screwed together.
- the two ferrules are then connected to one another using screw terminals or spring terminals.
- the individual wires of the stranded wire are each coated with an electrically insulating layer of lacquer.
- the layer of varnish insulates the individual strands of the stranded wire from one another, thereby reducing the effects of current displacement in the case of high-frequency currents, which flow particularly in systems for non-contact energy transmission.
- the individual wires of the stranded wire are each coated with an electrically insulating lacquer layer in the end region, particularly when they are inserted into the connector.
- the layer of lacquer insulates the individual strands of the litz wire from one another and thereby reduces current displacement effects in the case of currents with high frequencies. It is not necessary to remove such a lacquer layer in the end area of the stranded wire, which means that the contacting unit can be produced in a short time.
- the stranded wire has an electrically insulating plastic layer that surrounds the individual wires, with the plastic layer in removed from the end area of the stranded wire prior to insertion into the connector.
- the crimping is thus carried out directly with the individual wires of the stranded wire, which increases the mechanical strength.
- the connector has a hollow-cylindrical receiving body that is open on both sides.
- the end area of the stranded wire is inserted into the hollow-cylindrical receiving body.
- a connector configured in this way is particularly suitable for producing the contacting unit.
- the end area of the stranded wire is inserted into the connector in such a way that, after insertion, an end face of the end area is located within a hollow-cylindrical receiving body of the connector.
- the end face of the end region is preferably inserted up to half or up to two thirds into the hollow-cylindrical receiving body of the connector. This allows the end face of the end area of the stranded wire to be simply soldered to the connector, and the production of the contacting unit is further simplified.
- the end area of the stranded wire is crimped to the connector in such a way that a cavity is formed by part of the hollow-cylindrical receiving body and part of the stranded wire, and that an end face of the end area of the stranded wire is located in the cavity.
- the individual wires in the stranded wire are pressed against one another and plastically deformed in the process. This seals the capillaries between the individual wires.
- the cavity is thus closed against the part of the strand that faces away from the end face.
- the connector and the stranded wire are aligned for soldering in such a way that the cavity is open on a side facing away from the ground.
- the cavity is sealed against that part of the strand which is remote from the end face. Said orientation prevents solder from leaking out of the cavity during later soldering.
- the cavity is at least partially filled with liquid solder in order to solder the end region of the stranded wire to the connector.
- the cavity is advantageously filled with a handy soldering iron or a soldering gun with tin wire, which is melted on the tip of the soldering tool.
- the end area of the stranded wire is soldered to the connector in such a way that end faces of the individual wires are electrically connected to one another and to a hollow-cylindrical receiving body of the connector. There is no lacquer layer on the end faces of the individual wires.
- Solder tin filled into the cavity primarily connects to the end faces of the individual wires and creates a conductive connection to the connector.
- the advantage here is that no soldering tin can penetrate the stranded wire behind the crimp point due to capillary effects, but remains in the cavity and fills it. As a result, current displacement effects remain low, which significantly reduces the impedance and the resistance of the contacting unit, in particular compared to dip soldering.
- a contacting unit according to the invention in particular for a system for contactless energy transmission, includes a stranded wire, which includes a plurality of parallel individual wires, and a connector.
- the contacting unit according to the invention is produced by the method according to the invention.
- the contacting unit advantageously has high mechanical strength, in particular for absorbing tensile forces, and low contact resistance and is durable.
- the contacting unit can be produced with simple tools on construction sites in a short time and with low operating costs.
- a system according to the invention for contactless energy transmission comprises at least one contacting unit according to the invention.
- Figure 1 a stranded wire and a connector before the production of a contacting unit
- Figure 2 the stranded wire and the connector after the end area of the stranded wire has been inserted into the connector
- FIG. 3 the stranded wire and the connector after the connector has been crimped to the end area of the stranded wire and
- FIG. 4 a sectional view of the manufactured contacting unit.
- FIG. 1 shows a stranded wire 20 and a connector 30 before the production of a contacting unit 10.
- the stranded wire 20 is, for example, part of an elongated primary conductor. It is also conceivable that the stranded wire 20 is laid in several turns, which form a primary coil.
- the connector 30 has a receiving body 32 for receiving the stranded wire 20 .
- the receiving body 32 is designed as a hollow cylinder and is open on both sides, on both end faces.
- the connector 30 also has a connecting flange 36 .
- the connecting flange 36 is flat and has a bore 37 for receiving a screw.
- the connector 30 is designed in the form of a cable lug.
- the connector 30 can be connected to a feed of a system for contactless energy transmission, for example, by means of a screw which passes through the bore 37 .
- the connector 30 can be designed in the form of a ferrule that does not have a connecting flange with a bore.
- the connector 30 can be connected to a device, for example a feed of a system for contactless energy transmission, by insertion into a screw terminal or spring terminal.
- the stranded wire 20 is elongate and cylindrical and comprises a plurality of parallel individual wires 22.
- the individual wires 22 are made of an electrically conductive material, in particular copper, and are circular-cylindrical.
- the individual wires 22 of the stranded wire 20 are each coated with an electrically insulating layer of lacquer.
- the stranded wire 20 also has an electrically insulating inner plastic layer 26 and an electrically insulating outer plastic layer 27 .
- the plastic layers 26, 27 surround the individual wires 22 coaxially.
- the plastic layers 26, 27 are removed.
- the individual wires 22 of the stranded wire 20 are each coated with the electrically insulating lacquer layer in the end area 24 as well. End faces of the individual wires 22 form an end face 25 of the end region 24. The end faces of the individual wires 22 are free of the electrically insulating lacquer layer.
- FIG. 2 shows the stranded wire 20 and the connector 30 after the end area 24 of the stranded wire 20 has been inserted into the connector 30.
- the end area 24 of the stranded wire 20 is inserted into the hollow-cylindrical receiving body 32 of the connector 30.
- the end area 24 of the stranded wire 20 is inserted into the connector 30 in such a way that, after insertion, the end face 25 of the end area 24 is located inside the hollow-cylindrical receiving body 32 of the connector 30 .
- the individual wires 22 of the stranded wire 20 are each coated with the electrically insulating lacquer layer in the end area 24.
- FIG. 3 shows the stranded wire 20 and the connector 30 after the connector 30 has been crimped to the end region 24 of the stranded wire 20.
- the receiving body 32 of the connector 30 is crimped to the end region 24 of the stranded wire 20 using crimping pliers. This creates a crimping point 34 at which a diameter of the receiving body 32 is reduced.
- the individual wires 22 in the stranded wire are pressed against one another and are thereby plastically deformed.
- the receiving body 32 of the connector 30 is also plastically deformed at the crimping point 34 .
- the end area 24 of the stranded wire 20 is crimped to the connector 30 in such a way that a cavity 35 is formed by a part of the hollow-cylindrical receiving body 32 and by a part of the stranded wire 20 at the crimping point 34 .
- the end face 25 of the end area 24 is located in the cavity 35.
- the end face 25 of the end area 24 and the cavity 35 are covered by the receiving body 32 of the connector 30 in the representation shown here.
- the cavity 35 is open on the end face of the receiving body 32 which faces the connecting flange 36 .
- the cavity 35 is closed by the plastically deformed individual wires 22.
- Figure 4 shows a sectional view of the contacting unit 10 produced after the end region 24 of the stranded wire 20 has been soldered to the connector 30.
- the connector 30 and the stranded wire 20 are aligned in such a way that the end face of the receiving body 32 facing the connecting flange 36 faces away from the ground and that the crimp point 34 faces the ground.
- the cavity 35 is thus open for soldering on a side facing away from the ground and closed on a side facing the ground.
- the end area 24 of the stranded wire 20 is then soldered to the connector 30 .
- the cavity 35 is at least partially filled with liquid solder 38.
- the solder 38 is thereby liquefied by heating and later cools down and thereby returns to a solid state.
- the cavity 35 is filled with the liquid solder 38 at least to the extent that the end face 25 of the end region 24 of the stranded wire 20 is completely covered by the solder 38 .
- the end area 24 of the stranded wire 20 is soldered to the connector 30 in such a way that the end faces of the individual wires 22 are electrically connected to one another and to the hollow-cylindrical receiving body 32 of the connector 30 .
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021000297 | 2021-01-21 | ||
| PCT/EP2021/086211 WO2022156969A1 (de) | 2021-01-21 | 2021-12-16 | Verfahren zur herstellung einer kontaktierungseinheit, kontaktierungseinheit und system zur berührungslosen energieübertragung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4282032A1 true EP4282032A1 (de) | 2023-11-29 |
Family
ID=79287818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21839971.5A Pending EP4282032A1 (de) | 2021-01-21 | 2021-12-16 | Verfahren zur herstellung einer kontaktierungseinheit, kontaktierungseinheit und system zur berührungslosen energieübertragung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4282032A1 (de) |
| DE (1) | DE102021006221A1 (de) |
| WO (1) | WO2022156969A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4354712A1 (de) * | 2022-10-14 | 2024-04-17 | maxon international ag | Verfahren zur elektrischen kontaktierung einer litzendrahtwicklung an einer trägerplatte sowie litzendrahtwicklung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10053373B4 (de) | 2000-10-27 | 2019-10-02 | Sew-Eurodrive Gmbh & Co Kg | Verfahren und Vorrichtung zur berührungslosen Energieübertragung |
| ATE542265T1 (de) * | 2008-06-06 | 2012-02-15 | Schulte & Co Gmbh | Verfahren zum verbinden eines elektrisch leitenden bauteils mit einem flexiblen elektrischen leiter |
| AT516232B1 (de) * | 2014-09-10 | 2016-08-15 | Gebauer & Griller Kabelwerke Ges M B H | Verfahren zur Verbindung eines Kabelendes mit einem Verbindungselement |
| US10374329B2 (en) * | 2016-03-18 | 2019-08-06 | Wireless Advanced Vehicle Electrification, Inc. | Method of making a litz wire solder termination |
-
2021
- 2021-12-16 WO PCT/EP2021/086211 patent/WO2022156969A1/de not_active Ceased
- 2021-12-16 EP EP21839971.5A patent/EP4282032A1/de active Pending
- 2021-12-16 DE DE102021006221.3A patent/DE102021006221A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021006221A1 (de) | 2022-07-21 |
| WO2022156969A1 (de) | 2022-07-28 |
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