EP4533602A1 - Connecteur électrique haute tension à risque d'arcs électriques limité en régime alternatif haute fréquence - Google Patents
Connecteur électrique haute tension à risque d'arcs électriques limité en régime alternatif haute fréquenceInfo
- Publication number
- EP4533602A1 EP4533602A1 EP23725261.4A EP23725261A EP4533602A1 EP 4533602 A1 EP4533602 A1 EP 4533602A1 EP 23725261 A EP23725261 A EP 23725261A EP 4533602 A1 EP4533602 A1 EP 4533602A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical
- conductive material
- electrically conductive
- electrical continuity
- electrical connector
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
- H01R13/035—Plated dielectric material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
Definitions
- the present invention relates to a high voltage electrical connector with limited risk of electric arcs in high frequency alternating regime.
- the invention finds a particularly advantageous, but not exclusive, application with connectors used on the electrical power networks of aircraft.
- Figure 1 shows a schematic representation of an assembly according to the state of the art of a male electrical connector 10 and a female electrical connector 11 used within an electrical power network of an aircraft .
- the male electrical connector 10 comprises a body 12 made of an electrically conductive material, an electrical conductor 13 covered with a layer of electrically insulating material 15, a male electrical terminal 16, as well as an insulating insert 18 intended to insulate electrically the male electrical terminal 16 relative to the body 12.
- the female electrical connector 11 comprises a body 21 made of an electrically conductive material, an electrical conductor 23 covered with a layer of electrically insulating material 25, a female electrical terminal 26, as well as an insulating insert 28 intended to insulate electrically the female electrical terminal 26 relative to the body 21.
- Figure 2 shows an equivalent diagram of a dielectric chain between two equipotentials, for example the electrical conductor 13, 23 and the body 12, 21 of an electrical connector 10, 11.
- Cs and Rs respectively represent the capacitance and the resistance of solid dielectrics.
- Cg and Rg respectively represent the capacitance and resistance of gaseous dielectrics, such as ambient air.
- alternating regime also known as AC regime (for Alternative Current in English)
- the distribution of potentials is carried out mainly by the capacitors intrinsic to the insulators, all the more so with respect to the resistances as the frequency is high.
- These capacitors are sized in Farad and their value is defined by the facing surfaces, the distances between equipotentials, the vacuum permittivity (E0) and the relative permittivity of the dielectric (cr).
- the invention aims to effectively remedy the aforementioned drawbacks by proposing an electrical connector comprising:
- an elastic seal being placed in a space where an internal air volume of the electrical connector is likely to be subjected to a difference in electrical potentials between an electrical potential of the body and an electrical potential of the electrical terminal, - said elastic joint being in contact with the first electrical continuity zone and with the second electrical continuity zone.
- the invention thus makes it possible to eliminate any trace of ambient air acting as electrical insulation inside the connector by minimizing or even canceling the significant potential differences likely to be applied to the air located at inside the electrical connector.
- the invention thus minimizes the risk of generating electrical arcs during operation of the electrical connector in a high frequency and high voltage regime.
- the layers of electrically conductive material of the first electrical continuity zone and the second electrical continuity zone are solid layers.
- the layers of electrically conductive material of the first electrical continuity zone and the second electrical continuity zone are mesh layers.
- the layers of electrically conductive material of the first electrical continuity zone and the second electrical continuity zone are made of carbon.
- the layers of electrically conductive material of the first electrical continuity zone and the second electrical continuity zone are made of metal.
- the layers of electrically conductive material of the first electrical continuity zone and the second electrical continuity zone each have a thickness of between 20nm and 100nm.
- the electrical conductor and the layer of electrically insulating material are covered by shielding.
- said electrical connector is of the male and/or female type.
- the volume of air V1 extending radially between an external face of the insulating insert 18 and an internal face of the body 12 is subjected on both sides to the electrical potential of the bodies 12, 21 of the electrical connectors 10, 1 1, which prevents the appearance of parasitic currents in high voltage alternating regime in this zone.
- the volume of air V2 is subjected on both sides to the electrical potential of the electrical terminals 16, 26 of the electrical connectors 10, 11, which prevents the appearance of parasitic currents in high voltage alternating conditions in this zone.
- the layers of electrically conductive material 32, 33, 34, 35 of the first electrical continuity zone 31.1, 36.1 and the second electrical continuity zone 31.2, 36.2 could be mesh layers.
- the mesh layers comprise an alternation of empty zones 38, that is to say zones devoid of electrically conductive material, and arms 39 delimiting the meshes of the layer.
- the layers of electrically conductive material 32, 33, 34, 35 of the first electrical continuity zone 31.1, 36.1 and the second electrical continuity zone 31.2, 36.2 are preferably made of carbon.
- layers 32, 33, 34, 35 are made of metal.
- the layers of electrically conductive material 32, 33, 34, 35 may be deposited by ultrasonic welding, by plasma deposition, or any other technique for deposition of a thin layer of electrically conductive material on an element made of a dielectric material.
- the type of electrically conductive material is chosen according to its compatibility with the material of the insulating insert 18, 28 on which the layer 32, 33, 34, 35 is deposited.
- the layers of electrically conductive material 32, 33, 34, 35 of the first electrical continuity zone 31.1 and the second electrical continuity zone 31.2 each have a thickness of between 20nm and 10Onm.
- An elastic seal 40 visible in Figure 3 is arranged in a space 41 where an internal air volume of the electrical connector is capable of being subjected to a difference in electrical potentials between an electrical potential of the body 12, 21 and a electrical potential of the electrical terminal 16, 26.
- the elastic seal 40 is arranged between the male electrical connector 10 and the female electrical connector 11.
- the space 41 extends axially between the insulating insert 18 of the connector 10 and the insulating insert 28 of connector 11.
- the space 41 extends radially between one of the electrical terminals 16 or 26 and one of the insulators 18 or 28.
- the elastic seal 40 is made of a material capable of withstanding the maximum internal tension to which the electrical connector is subjected.
- the elastic seal 40 is preferably made of silicone but any other material suitable for the application is possible.
- the elastic seal 40 is compressed so as to expel the air present inside the space 41. The air is thus replaced by the elastic seal 40 as an electrical insulator.
- the elastic seal 40 thus makes it possible to significantly increase the dielectric rigidity relative to air in a ratio of at least 10.
- the joint 40 is in contact with the first electrical continuity zone 31.1 and the second electrical continuity zone 31.2 of the electrical connector 10, in particular one end of the first electrical continuity zone 31.1 and one end of the second electrical continuity zone 31.2 of the electrical connector 10.
- the joint 40 is also in contact with the first electrical continuity zone 36.1 and the second electrical continuity zone 36.2 of the electrical connector 11, in particular one end of the first electrical continuity zone 36.1 and one end of the second electrical continuity zone 36.2 of the electrical connector 11.
- the end of the first electrical continuity zone 31.1 is spaced apart by a distance, for example of the order of a millimeter, relative to the end of the second electrical continuity zone 31.2 of the electrical connector 10.
- the end of the first electrical continuity zone 36.1 is separated by a distance, for example of the order of a millimeter, relative to the end of the second electrical continuity zone 36.2 of the electrical connector 11.
- first face 42 and the second face 43 of the space 41 on which the electrical continuity zones end are adjacent to each other.
- first face 42 and the second face 43 can be opposite each other.
- the voltage gradient gradV between the electrical potential of the terminals and the electrical potential of the body 12, 21 is distributed inside the elastic seal 40.
- Figure 6a shows an example of implementation of the invention with an electrical connector 50 of the hermaphrodite type, that is to say a connector which is the combination of a male connector and a female connector .
- This type of connector is used for economies of scale or when the assembly operation on equipment (harness or housing) is irreversible in order to avoid making assembly errors.
- the electrical connector 50 comprises a body 51 made of an electrically conductive material, an electrical conductor 52 covered with a layer of electrically insulating material 53 and a shield 54 electrically connected to the body 51.
- the connector 50 also includes an electrical terminal 55 having a male portion and a female portion, as well as an insulating insert 56 intended to electrically insulate the electrical terminal 55 with respect to the body 51.
- the insulating insert 56 comprises a first electrical continuity zone 57.1 covered with a layer of electrically conductive material ensuring electrical continuity with the body 51, and a second electrical continuity zone 57.2 covered with a layer of electrically conductive material ensuring electrical continuity with the electrical terminal 55.
- the first electrical continuity zone 57.1 and the second electrical continuity zone 57.2 are distinct from each other, that is to say there is no continuity of material between the layer of electrically conductive material of the first electrical continuity zone 57.1 and the layer of electrically conductive material of the second electrical continuity zone 57.2.
- the electrical connector 10, 11, 50 is a multi-pin connector comprising two or more electrical terminals 16, 26, 55.
- an electrical continuity zone is provided for each electrical terminal 16, 26 , 55 of the electrical connector 10, 11.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2205268A FR3136312B1 (fr) | 2022-06-01 | 2022-06-01 | Connecteur électrique haute tension à courant de fuite limité en régime alternatif haute fréquence |
| PCT/EP2023/063665 WO2023232542A1 (fr) | 2022-06-01 | 2023-05-22 | Connecteur électrique haute tension à risque d'arcs électriques limité en régime alternatif haute fréquence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4533602A1 true EP4533602A1 (fr) | 2025-04-09 |
| EP4533602B1 EP4533602B1 (fr) | 2026-02-18 |
Family
ID=83280478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23725261.4A Active EP4533602B1 (fr) | 2022-06-01 | 2023-05-22 | Connecteur électrique haute tension à risque d'arcs électriques limité en régime alternatif haute fréquence |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12316045B1 (fr) |
| EP (1) | EP4533602B1 (fr) |
| CN (1) | CN119278551B (fr) |
| FR (1) | FR3136312B1 (fr) |
| WO (1) | WO2023232542A1 (fr) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376541A (en) * | 1966-03-11 | 1968-04-02 | Rfe Corp | Safe break terminator |
| US4946393A (en) * | 1989-08-04 | 1990-08-07 | Amerace Corporation | Separable connector access port and fittings |
| FR2682820A1 (fr) * | 1991-10-16 | 1993-04-23 | Michelin & Cie | Connecteur electrique et ses composants. |
| FR2719420A1 (fr) * | 1994-04-29 | 1995-11-03 | Ge Medical Syst Sa | Procédé et dispositif d'accouplement de composants électriques haute tension. |
| FR2766019B1 (fr) * | 1997-07-10 | 1999-09-10 | Schneider Electric Sa | Dispositif de raccordement electrique entre deux cellules a haute tension, et a isolement par un gaz |
| US5998736A (en) * | 1998-01-20 | 1999-12-07 | Relight America, Inc. | High voltage wiring system for neon lights |
| AU2003901623A0 (en) * | 2003-03-28 | 2003-05-01 | Head Electrical International Pty Ltd | An electrical connection device |
| JP2006040559A (ja) * | 2004-07-22 | 2006-02-09 | Mitsubishi Electric Corp | 電気コネクター |
| DE102004054639A1 (de) * | 2004-11-12 | 2006-06-01 | Pfisterer Kontaktsysteme Gmbh & Co. Kg | Kabelsteckverbinder einer Steckverbindungseinrichtung für die Mittel- und Hochspannungstechnik |
| DE102011122037A1 (de) * | 2011-12-22 | 2013-06-27 | Kathrein-Werke Kg | Verfahren zur Herstellung einer elektrischen Hochfrequenz-Verbindung zwischen zwei Plattenabschnitten sowie eine zugehörige elektrische Hochfrequenz-Verbindung |
| EP3073592B1 (fr) * | 2013-11-19 | 2022-03-16 | Mitsubishi Electric Corporation | Dispositif de connexion de bus et appareillage de connexion utilisant celui-ci |
| EP2887480A1 (fr) * | 2013-12-17 | 2015-06-24 | Siemens Aktiengesellschaft | Partie de connecteur d'une unité de connecteur |
| EP3575804A1 (fr) * | 2018-05-30 | 2019-12-04 | 3M Innovative Properties Company | Capteur de tension |
-
2022
- 2022-06-01 FR FR2205268A patent/FR3136312B1/fr active Active
-
2023
- 2023-05-22 EP EP23725261.4A patent/EP4533602B1/fr active Active
- 2023-05-22 WO PCT/EP2023/063665 patent/WO2023232542A1/fr not_active Ceased
- 2023-05-22 US US18/869,812 patent/US12316045B1/en active Active
- 2023-05-22 CN CN202380042936.8A patent/CN119278551B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR3136312B1 (fr) | 2024-04-19 |
| CN119278551B (zh) | 2025-07-11 |
| WO2023232542A1 (fr) | 2023-12-07 |
| EP4533602B1 (fr) | 2026-02-18 |
| FR3136312A1 (fr) | 2023-12-08 |
| US20250174935A1 (en) | 2025-05-29 |
| US12316045B1 (en) | 2025-05-27 |
| CN119278551A (zh) | 2025-01-07 |
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