EP4449466A1 - Contacteur de puissance a double contacts - Google Patents
Contacteur de puissance a double contactsInfo
- Publication number
- EP4449466A1 EP4449466A1 EP22840805.0A EP22840805A EP4449466A1 EP 4449466 A1 EP4449466 A1 EP 4449466A1 EP 22840805 A EP22840805 A EP 22840805A EP 4449466 A1 EP4449466 A1 EP 4449466A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elements
- contactor
- fixed part
- contact
- switching elements
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/045—Details particular to contactors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having 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
- H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
Definitions
- the present invention relates to the general field of electrical protection devices, such as electromagnetic contactors and circuit breakers.
- Power contactors are electrical protection devices generally made up of a fixed part (formed by two fixed elements) and a mobile part (formed by two mobile elements) which may or may not be in contact with the fixed part.
- the motor of the contactor is powered, which will make it possible to apply a force to the mobile part, and thus allow the circulation of an electric current between the mobile part and the fixed part.
- the invention relates to a power contactor comprising:
- a movable part able to come into contact with the fixed part and to move between an open position and a closed position of the contactor, the movable part comprising two switching elements and two conduction elements, and the distance between the fixed part and the two conduction elements being greater than the distance between the fixed part and the two switching elements in the open position of the contactor so that the switching elements are in contact with the fixed part before the switching elements conduction when switching from the open position to the closed position of the contactor;
- a motor configured to actuate the movable part and bring it into contact with the fixed part.
- the number of contact points between the fixed part and the mobile part is increased and thus makes it possible to reduce the electric current flowing at each contact point. Local heating at each contact point is therefore reduced compared to a traditional contactor.
- the switching elements open after the conduction elements when the contactor opens, it is known where the electric arcs occur. It is thus possible to choose the appropriate materials and/or geometries to be implemented on the switching and conduction elements.
- a contactor of the invention double-contact contactor
- the plating forces due to the contact between the switching elements and the fixed part and due to the contact between the conduction elements and the part fixed are staggered in time.
- This specificity corresponds better to the increase in electromagnetic forces supplied by the motor during closing. It is thus possible to increase the pressing forces of the switching and conduction contacts while remaining lower than the electromagnetic forces supplied by the motor, therefore thanks to the invention, the resistance to levitation is increased at least by two.
- the switching elements and the conduction elements are mounted in parallel on the same axis.
- the material of the switching elements is different from the material of the conduction elements.
- the switching elements are made of silver - tin oxide (AgSnCh) and the conduction elements of pure silver.
- the switching elements and the conduction elements are made of the same material.
- they are made of pure silver, especially for high voltage applications (over 40 V).
- the contactor comprises at least one spring placed between the motor and the switching elements so as to apply pressure on the switching elements and at least one spring placed between the motor and the switching elements. conduction so as to apply pressure to the conduction elements.
- Another object of the invention is a method of closing a power contactor in the open position according to the invention comprising bringing the switching elements into contact with the fixed part, then bringing the conduction elements into contact. with the fixed part.
- the closing method of the invention by having the switching elements which close before the conduction elements, it is known that the electric arcs will occur on these elements.
- the forces of repulsion are reduced, which makes it possible to improve the resistance to strong currents of the contactor.
- Another object of the invention is a method for opening a power contactor in the closed position according to the invention comprising opening the contact between the conduction elements and the fixed part, then opening the contact between the switching elements and the fixed part.
- Figure 1 shows, schematically and partially, a power contactor in the open position according to one embodiment of the invention.
- FIG. 2A Figure 2A schematically and partially shows a section of a power contactor in the open position according to one embodiment of the invention.
- FIG. 2B Figure 2B schematically and partially shows a section of a power contactor between an open position and a closed position according to one embodiment of the invention.
- FIG. 2C Figure 2C schematically and partially shows a section of a power contactor in the closed position according to one embodiment of the invention.
- FIG. 3 schematically shows a method of closing a power contactor according to one embodiment of the invention.
- FIG. 4 Figure 4 schematically shows a method of opening a power contactor according to one embodiment of the invention.
- Figures 1 and 2A show, schematically and partially, a power contactor 100, 200 in the open position, Figure 2A being a sectional view of the contactor of Figure 1.
- the power contactor 100, 200 comprises a motor 110, 210, a fixed part 140, 240 comprising two fixed elements 141, 142, 241, 242 and a moving part 130, 230 able to come into contact with the fixed part 140, 240
- the movable part 130, 230 is able to move between an open position and a closed position of the contactor. In the open position, the fixed part and the moving part are not in contact and no electric current flows between the two. In the closed position, the fixed part and the movable part are in contact so that an electric current flows between the two parts.
- the mobile part 130, 230 comprises two switching elements 131, 132, 231, 232 and two conduction elements 133, 134, 233, 234.
- the distance dl between the fixed part 140, 240 and the conduction elements 133, 134, 233, 234 is greater than the distance d2 between the fixed part 140, 240 and the switching elements 131, 132, 231, 232.
- the conduction elements 133, 134, 233, 234 are mounted in parallel with the switching elements 131, 132, 231, 232 on the same axis 150, 250.
- the contactor 200 also comprises a spring 270 placed around the axis 250 between the motor 210 and the switching elements 231, 232 so as to apply pressure to the switching elements, and a spring 260 placed around the axis 250 between the motor 210 and the conduction elements 233, 234 so as to apply pressure on the conduction elements 233, 234.
- the two springs 260, 270 each apply an initial force to the moving part 230 when the contactor is in the open position.
- the motor 110, 210 can be an electromagnetic motor comprising a coil or a mechanical motor.
- the power contactor 100, 200 can also comprise a motor control means 110, 210 so as to supply or block the motor 110, 210 in order to be able to close or open the contactor 100, 200.
- Figure 2B shows the contactor 200 in the process of opening or closing, that is to say in the process of moving from the open position to the closed position (and vice versa), while Figure 2C represents the contactor 200 in the closed position.
- the motor 210 is powered both by a contact force given by the motor 210 and an affirmation force given by the springs 260 and 270, the switching elements 231 and 232 are initially brought into contact on the fixed elements 241 and 242. These forces make it possible to maintain the switching elements 231, 232 under mechanical pressure on the fixed elements 241, 242.
- Contactor 200 is then in a semi-open (or semi-closed) state, as shown in FIG. 2B. In this state, electric arcs can appear between the elements 241, 242 of the fixed part 240 and the switching elements 231, 232. No electric current flows between the fixed part 240 and the conduction elements 241 and 242 in this state. .
- the conduction elements 233, 234 are brought into contact with the elements 241, 242 of the fixed part 240.
- An electric current can then flow between the fixed part 240 and the conduction elements 241, 242 and the fixed part 240 and the switching elements 231, 232, via the four contact points formed between the pairs of elements 233 and 242, 231 and 242, 232 and 241, 234 and 241.
- the contactor 200 is then in the closed position , as shown in Figure 2C.
- the power supply to the motor 210 is cut off, and the conduction elements 233, 234 will first open (as shown in FIG. 2B), then the switching elements 231, 232 will then open. open (as shown in Figure 2A).
- FIG. 3 schematically represents a method 300 for closing a power contactor according to one embodiment of the invention.
- the contactor is initially in the open position 310, therefore the fixed and mobile parts are not in contact and no electric current flows between these two parts.
- the motor is powered so as to apply a pressure force on the movable part of the contactor, and the switching elements are first brought into contact with the fixed part (step
- FIG. 4 schematically represents a method 400 for opening a power contactor according to one embodiment of the invention.
- the contactor is initially in the closed position 410, therefore the fixed and mobile parts are in contact and an electric current flows between these two parts.
- the power supply to the motor is cut off and the conduction elements open first (step 401). They are therefore no longer in contact with the fixed part of the contactor and electric arcs may appear between the switching elements and the fixed part. Then, the switching elements open (step 402).
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanisms For Operating Contacts (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2113887A FR3131073A1 (fr) | 2021-12-17 | 2021-12-17 | Contacteur de puissance à double contacts |
| PCT/FR2022/052344 WO2023111451A1 (fr) | 2021-12-17 | 2022-12-14 | Contacteur de puissance a double contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4449466A1 true EP4449466A1 (fr) | 2024-10-23 |
Family
ID=80786416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22840805.0A Pending EP4449466A1 (fr) | 2021-12-17 | 2022-12-14 | Contacteur de puissance a double contacts |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250069832A1 (fr) |
| EP (1) | EP4449466A1 (fr) |
| CN (1) | CN118402030A (fr) |
| FR (1) | FR3131073A1 (fr) |
| WO (1) | WO2023111451A1 (fr) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3217528C2 (de) * | 1982-05-10 | 1986-04-03 | Siemens AG, 1000 Berlin und 8000 München | Kontaktanordnung für Relais |
| JP5710984B2 (ja) * | 2011-01-12 | 2015-04-30 | 富士電機株式会社 | 電磁接触器 |
| DE102015224658B4 (de) * | 2015-12-09 | 2018-03-29 | Lisa Dräxlmaier GmbH | Elektromechanischer Schutzschalter |
| CN106158517A (zh) * | 2016-07-21 | 2016-11-23 | 贵州天义电器有限责任公司 | 高压直流密封接触器动触头结构 |
| CN107731626A (zh) * | 2017-11-06 | 2018-02-23 | 海拉(厦门)汽车电子有限公司 | 双桥结构的直动式继电器 |
| CN112133605B (zh) * | 2019-06-25 | 2024-10-01 | 上海良信电器股份有限公司 | 一种接触器灭弧系统 |
| CN112563078A (zh) * | 2019-09-26 | 2021-03-26 | 上海良信电器股份有限公司 | 一种直流接触器触头组件 |
| US11195671B2 (en) * | 2019-12-03 | 2021-12-07 | Hamilton Sundstrand Corporation | Dual parallel moveable electrical contacts/relays |
-
2021
- 2021-12-17 FR FR2113887A patent/FR3131073A1/fr active Pending
-
2022
- 2022-12-14 WO PCT/FR2022/052344 patent/WO2023111451A1/fr not_active Ceased
- 2022-12-14 US US18/720,795 patent/US20250069832A1/en active Pending
- 2022-12-14 EP EP22840805.0A patent/EP4449466A1/fr active Pending
- 2022-12-14 CN CN202280082121.8A patent/CN118402030A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3131073A1 (fr) | 2023-06-23 |
| US20250069832A1 (en) | 2025-02-27 |
| WO2023111451A1 (fr) | 2023-06-22 |
| CN118402030A (zh) | 2024-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2779190B1 (fr) | Bloc unitaire de commutation et dispositif de commutation comportant au moins un tel bloc | |
| FR2921199A1 (fr) | Actionneur electromagnetique et appareil interrupteur equipe d'un tel actionneur electromagnetique | |
| EP1185995A1 (fr) | Dispositif de commande d'ouverture et/ou de fermeture, en particulier pour un appareil de coupure tel un disjoncteur, et disjoncteur equipe d'un tel dispositif | |
| FR2913142A1 (fr) | Actionneur electromagnetique hybride. | |
| EP3903334B1 (fr) | Dispositif de coupure de courant pour courant continu haute tension avec circuit d'oscillation adaptatif et procédé de pilotage | |
| WO2023111451A1 (fr) | Contacteur de puissance a double contacts | |
| WO2002049053A1 (fr) | Appareil de coupure electronique pour installation electrique | |
| FR3072826A1 (fr) | Appareil de coupure electrique, procede et installation utilisant un tel appareil | |
| EP3011579B1 (fr) | Organe hybride de coupure pour circuit electrique | |
| EP2842151B1 (fr) | Circuit actionneur de commande de disjoncteur | |
| WO2010018030A1 (fr) | Actionneur electromagnetique hybride a bobine fixe | |
| FR2972844A1 (fr) | Actionneur rotatif et contacteur comportant un tel actionneur | |
| FR2905795A1 (fr) | Dispositif de contact pour appareil electrique et appareil electrique equipe d'un tel dispositif | |
| WO2025012562A1 (fr) | Contacteur de puissance bidirectionnel multi-contacts | |
| EP4064309B1 (fr) | Système de coupure d'un appareil électrique | |
| EP2402970B1 (fr) | Chambre de coupure pour disjoncteur a moyenne ou haute tension a energie de manoeuvre et dimensions reduites | |
| EP4104195B1 (fr) | Appareil de coupure mécanique de courant pour courant continu haute tension avec capacité dans un chemin secondaire, installation et procédé avec un tel appareil | |
| WO2025008586A1 (fr) | Systeme de maintien magnetique pour contacteur | |
| EP0163349B1 (fr) | Circuit d'alimentation perfectionné pour un contacteur électromagnétique | |
| FR2970108A1 (fr) | Dispositif electromagnetique et actionneur electromagnetique correspondant. | |
| WO2023089271A1 (fr) | Chambre de coupure pour courant continu bidirectionnel | |
| FR2860337A3 (fr) | Systeme de contacts de coupure pour un commutateur electrique | |
| FR2857779A1 (fr) | Disjoncteur multipolaire | |
| FR2899717A1 (fr) | Dispositif de coupure electrique destine a la mise sous tension ou a la mise hors tension d'un equipement electrique | |
| EP4623456A1 (fr) | Contacteur de puissance a ecran de clarification d'arc electrique et aeronef comportant un tel contacteur de puissance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20240705 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20251104 |