EP4179557A1 - Élément de commutation de connexion électrique - Google Patents

Élément de commutation de connexion électrique

Info

Publication number
EP4179557A1
EP4179557A1 EP21742701.2A EP21742701A EP4179557A1 EP 4179557 A1 EP4179557 A1 EP 4179557A1 EP 21742701 A EP21742701 A EP 21742701A EP 4179557 A1 EP4179557 A1 EP 4179557A1
Authority
EP
European Patent Office
Prior art keywords
contact elements
switching element
contact
contact piece
piston
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
Application number
EP21742701.2A
Other languages
German (de)
English (en)
Inventor
Peter Lell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4179557A1 publication Critical patent/EP4179557A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/004—Closing switches
    • 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
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H79/00—Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected

Definitions

  • the present invention relates to an electrical connecting switching element for the targeted short-circuiting of a circuit with energies of up to 100 kJ, which requires less installation space than previous connecting switching elements or relays, is significantly smaller, lighter and cheaper to produce, requires less activatable material when it is actively triggered, and yet switches safely, quickly and without contact chatter.
  • the switching principle can be used well for circuits with an operating voltage of up to 10 kV.
  • the time between the activation of the electrical connecting switching element and the short-circuiting of the circuit can be reduced to up to 40 psec and is therefore two orders of magnitude faster than switching with a relay, for example.
  • Electrical connection switching elements for closing circuits are used, for example, to take electrical energy from a motor vehicle subsystem after a motor vehicle accident.
  • inverters in electric vehicles still store capacitive energy even after they have been switched off, which must be removed from the system as quickly as possible after an accident and after the vehicle battery has been disconnected, i.e. converted into heat, for example, to prevent a fire or explosion to prevent.
  • electrical interrupting switching elements with a so-called center electrode can be used, as described in DE 102016 124 176 A1.
  • connection contacts can be formed by two conductor elements arranged one behind the other in the direction of movement of the contact piece, which are then bridged by the contact piece, similar to that in DE 10 2014 110 825 A1 described, so-called balance switch, only with reversed effect.
  • DE 10 2010 010 669 A1 shows an electrical connection switching element in which the contact piece is connected to only one of the two electrical connection contacts before switching. After switching, the contact piece is seated in a receiving device provided for this, as a result of which a connection is established between the two electrical connection contacts via the electrically conductive contact piece.
  • the contact spring design according to Fig. 6A and 6B has the disadvantage of only limited current-carrying capacity, and the contact is only touching and not welding, i.e. not stable over the long term.
  • the prior art designs according to Fig. 4 and Fig. 5 have the disadvantage that for the connection of the two terminal contacts, the contact piece must be subjected to a relatively large force in order to ensure reliable contacting or welding of both contacts after the piston movement. Furthermore, these assemblies require a relatively large amount of space and are very heavy.
  • the electrical connection switching element according to the invention has two electrically conductive contact elements and an electrically conductive contact piece for connecting the contact elements.
  • the contact piece or plunger is movable along a path of movement, whereby the connection switching element can be changed over from an electrically disconnected state to an electrically connected state.
  • the contact piece is not electrically connected to any of the contact elements in the disconnected state and is electrically connected to both contact elements in the connected state.
  • the contact elements are designed in such a way that, in the connected state, the contact elements encompass the contact piece from opposite sides. In this way, the two contact elements can be arranged together in a compact design, so that the space requirement of the connecting switching element according to the invention is less than in the case of connecting switching elements of the prior art.
  • the contact elements are arranged on opposite sides of the axis of the movement path of the contact piece. In this way, the contact piece can move in between the contact elements and connects them electrically at the same time. As a result, the connection switching element according to the invention can be switched at high speed.
  • the contact elements are preferably arranged parallel to one another in a plane, the plane being arranged at an angle or perpendicular to the movement path of the contact piece.
  • a substantially vertical arrangement is preferred according to the invention, since this is easier to implement in terms of structural engineering.
  • the contact elements are geometric are identical. It is preferred that the contact elements are designed in such a way that they can be transferred into one another when they are rotated through 180° along an imaginary central axis.
  • the central axis here preferably corresponds to the axis of the movement path of the contact piece.
  • the contact elements can each be designed in the shape of a partial circle, as a result of which they can excellently grip a round or cylindrical contact piece. However, the contact elements can also be designed in the manner of clamps or in a sliding manner. The last-mentioned forms can also enclose a round or cylindrical contact piece.
  • the contact piece it is also conceivable for the contact piece to have a base area other than a circle, for example a square, rectangle, pentagon or hexagon.
  • the contact piece can also be designed conically, wedge-shaped or plate-like.
  • the two contact elements are mirror-symmetrical to one another. The two contact elements thus together form a receiving structure for the contact piece. It is preferred that this receiving structure expands when the contact piece is received in such a way that after the contact piece has been decelerated or retracted, there is a stable, constant contact pressure on the contact elements, which can become so high that the contact elements touch the contact piece at the contact surfaces even intimately welded together.
  • the contact piece can be scratched or even deformed to ensure good electrical contact. Depending on the material used for the contact elements, the current can be reduced via the two electrical connection contacts of the connecting switching element according to the invention.
  • the electrical connection contacts are connected to the contact elements. Connection contact and contact element preferably form a unit and are preferably designed in one piece.
  • the contact elements are preferably made of copper or stainless steel, the contact piece can also be a metallized non-conductor or a non-conductor coated with a more or less electrically conductive layer, for example an electrically conductively coated ceramic or an electrically conductively coated plastic.
  • a slotted cone tube made of electrically highly conductive material is used instead of a solid contact piece electrically connected to each other.
  • the previous gap between the contact elements and the first housing can approach zero here; the elastic/plastic element required here is the slotted cone tube. If a potential separation between the bulb or ignition and contact elements is desired, the bulb can be made entirely of plastic.
  • the contact piece touches both contact elements essentially at the same time during the transition from the disconnected state to the connected state. In this way, a simple construction and rapid switching of the connection switching element can be ensured. It is preferred that the contact piece touches the two contact elements with a maximum time offset of less than 0.2 ms.
  • the connection switching element according to the invention can have a holding device.
  • This holding device is preferably designed as a housing for the contact elements.
  • the contact elements are preferably fastened to the holding device via the connection contacts.
  • the holding device preferably has a boundary on the inside, within which the contact elements are arranged.
  • the holding device preferably surrounds the electrical contact elements in such a way that their position relative to one another is essentially secured both in the connected and in the disconnected state of the connecting switching element. This means that the contact elements can only move to a small extent when the contact piece is received between them.
  • the delimitation of the holding device there is a gap between the delimitation of the holding device and the contact elements, which allows the above-mentioned receiving structure to expand somewhat up to a maximum of the delimitation by the holding structure when receiving the contact piece. In this way, overstretching of the contact elements is not possible and reliable contact with the contact piece is guaranteed.
  • the contact piece is moved along its movement path with the aid of a drive that can be activated.
  • the activatable drive can be an igniter, a gas generator or a detonator, as are known in the art are known.
  • the activatable drive is preferably controllable and is triggered, for example, when a circuit is to be short-circuited in a targeted manner.
  • the activatable drive can move a piston guided by a housing, with the aid of which the contact piece is moved along its movement path.
  • the activatable drive is preferably located within the housing.
  • the piston can be designed in one piece or also in several pieces. If the piston has a multi-piece design, it is preferable for it to be designed telescopically and to be able to be extended out of the housing along the direction of movement of the contact piece.
  • the advantages of a telescopic design of the piston for driving the contact piece are: (1) faster short-circuiting or connecting the both connection contacts, because with a two-piece telescope, for example, as shown below in FIGS.
  • each telescope segment only has to cover half the distance compared to a one-piece piston, and each telescope segment extends at the same time; (2) with a fixed distance for the contact piece, which results, for example, from the high voltage to be switched, the assembly can be built correspondingly shorter.
  • the piston can be shortened by the length of one telescopic segment and thus placed at a greater distance from the contact elements.
  • telescopic pistons with more than two telescopic segments can also be used.
  • FIG. 1 shows in the middle the section of an assembled electrical connection switching element according to the invention in the electrically unconnected state, a view according to section BB being shown at the top and a view according to section AA at the bottom.
  • 2A shows a schematic side view of an electrical connecting switching element according to the invention in the electrically unconnected state at the bottom, with a view along section BB being shown at the top.
  • FIG. 2B shows a schematic side view of a connection switching element according to FIG. 2A in the electrically connected state.
  • the contact piece was pressed between the two contact elements.
  • Fig. 3A shows a schematic side view of a further electrical connection switching element according to the invention in the electrically unconnected state at the bottom, with a view according to section B-B being shown at the top.
  • FIG. 3B shows a schematic side view of a connection switching element according to FIG. 3A in the electrically connected state. Compared to the view in FIG. 2B, the contact piece is not pressed between the contact elements here, but is shot in because the piston is held back here.
  • FIG. 4A shows a schematic lateral view of an electrical connecting switching element not according to the invention in the electrically unconnected state, in which two contact elements arranged parallel to one another are contacted by a contact piece one after the other.
  • the switching principle shown here is state of the art.
  • FIG. 4B shows a schematic side view of a connection switching element according to FIG. 4A in the electrically connected state.
  • FIG. 5A shows a schematic lateral view of an electrical connecting switching element not according to the invention in the electrically non-connected state, in which two contact elements arranged parallel to one another are separated in time from a temporarily free-flying contact piece be contacted.
  • the switching principle shown here is state of the art.
  • FIG. 5B shows a schematic side view of a connection switching element according to FIG. 5A in the electrically connected state.
  • FIG. 6A shows a schematic side view of an electrical connecting switching element not according to the invention in the electrically non-connected state, in which two contact elements arranged in a relay-like manner are connected to one another by the movement of the contact piece.
  • the electromagnet is replaced by a pyrotechnic power element.
  • FIG. 6B shows a schematic side view of a connection switching element according to FIG. 6A in the electrically connected state.
  • FIG. 7A shows a plan view along the imaginary central axis of two circular electrical contact elements with electrical
  • FIG. 7B shows a plan view along the imaginary central axis of two clip-like electrical contact elements with electrical connection contacts.
  • 7C shows a plan view along the imaginary central axis of two sliding electrical contact elements with electrical connection contacts.
  • 8A shows a plan view along the imaginary central axis of two circular electrical contact elements with electrical
  • connection contacts compared to FIG. 7A, however, the connection contacts are bent at an angle here.
  • Fig. 8B shows a top view of the two contact elements according to Fig. 7A and 7B rotated by 90 ° so that the connection bores of the two sees contact elements.
  • FIG. 8C again shows a top view of the two contact elements according to FIGS. 7A and 7B rotated by 90° so that the connection bores of the two contact elements can be seen.
  • the two connection bores of the contact elements are shifted from the center line of the contact elements in order to be able to position the entire assembly differently again.
  • Fig. 9A shows a schematic side view at the bottom of an electrical connection switching element according to the invention in the electrically unconnected state, with a view according to section B-B being shown at the top, the piston pushing the contact element being of telescopic design.
  • FIG. 9B shows a schematic side view of a connection switching element according to FIG. 9A in the electrically connected state.
  • the contact piece was pressed between the two contact elements.
  • FIG. 10 shows a schematic side view of an electrical connection switching element according to the invention in the electrically unconnected state at the bottom, with a view according to section B-B being shown at the top, the contact elements being designed mirror-symmetrical to one another for receiving a wedge-shaped or plate-like contact piece
  • 11A shows a schematic side view at the bottom of an electrical connection switching element according to the invention in the electrically unconnected state, with a view according to section B-B being shown at the top, with the slotted cone tube inserted and here not in contact with the contact elements.
  • Fig. 11B shows a schematic side view of a connection switching member as shown in Fig. 11A in the electrically connected state.
  • the slotted cone tube was expanded by the retracting piston and pressed between the two contact elements.
  • connection switching element 1 shows in the middle the section of an assembled electrical connection switching element 1 according to the invention in the electrically unconnected state.
  • the connection switching element 1 has a first housing 6, which also serves as a holding device for the electrical contact elements 2a and 2b, and a second housing 10.
  • the first housing 6 preferably accommodates the electrical contact elements 2a and 2b, which are preferably connected to the electrical connection contacts 8a and 8b connected thereto.
  • the electrical contact elements 2a and 2b and the connection contacts 8a and 8b are preferably formed in one piece.
  • the connection contacts 8a and 8b are held by the first housing 6 and in this way indirectly hold the electrical contact elements 2a and 2b in the first housing 6 in the desired arrangement or position.
  • connection contacts 8a and 8b preferably have bores 9, to which the entire connection switching element 1 can be screwed or fastened. This allows the entire assembly to be screwed to so-called busbars.
  • the bores 9 of the electrical connection contacts 8a and 8b can be offset as required by the desired installation position of the connecting switching element 1 between or on the busbars to be short-circuited.
  • FIG. 1 which represents a section BB through the connecting switching element 1
  • the contact elements 2a and 2b are designed in a circular or part-circular manner about an imaginary central axis 5.
  • the contact elements 2a and 2b are designed in such a way that they do not touch one another and can accommodate a contact piece 3 in their center which is electrically conductive and electrically connect the contact elements 2a and 2b to one another when the connecting switching element 1 is in the connected state. In this way, a current can flow from the electrical connection contact 8a to the electrical connection contact 8b, or vice versa.
  • the electrical contact elements 2a and 2b touch the preferably cylindrical contact piece 3 from two opposite sides 4a and 4b (reference numerals not shown in Fig. 1, however in Figures 2B and 3B).
  • the first housing 6 preferably has fastening bores 17 which can be used to attach an upper cover 19 with the screws 21 or to be able to firmly connect the first housing (holding device for the electrical contact elements) 6 to the second housing 10 .
  • the second housing 10 preferably has the contact piece 3 in the non-connected state of the connecting switching element 1 , which contact piece is preferably connected to the piston 11 .
  • the contact piece 3 can have a bore on the side facing away from the first housing 6, in which a nipple of the piston 11 can find space, ie the contact piece 3 can be plugged onto the piston 11 via this nipple.
  • the connecting switching element 1 according to the invention preferably has an activatable drive 7, which is shown in FIG. 1 in the non-triggered form.
  • the activatable drive 7 is preferably located on the side of the piston 11 that is opposite the contact piece 3 . In this way, when the activatable drive 7 is triggered, the contact piece 3 can be moved along an axis 5 and preferably comes to a standstill between the electrical contact elements 2a and 2b. So-called emergency stop elements 16 (reference symbols shown in FIGS. 2B and 3B) or the upper cover 19 are preferably used for the latter.
  • the upper cover 19 can also have a sensor screw 22, which can be used to determine whether the connecting switching element 1 is electrically connected or electrically disconnected condition.
  • a sealing film 26 can be provided between the upper cover 19 and the first housing 6 to seal the interior of the connecting switching element 1 .
  • the piston 11 is guided inside by the second housing 10 after the triggering of the activatable drive 7 . Furthermore, the piston 11 preferably has, on the side facing away from the contact piece 3, a preferably cylindrical cavity which is open on one side and in which the activatable drive 7 is arranged. A piston seal 12 arranged on the piston 11 between its outside and the inside of the second housing 10 can seal the interior of the connecting switching element 1 . A cable inlet 25 for electrical cables or pyrotechnic transmission lines (TLX, Shocktube, etc.) can be provided on the underside, via which the activatable drive 7 can be activated. As shown in FIG.
  • a cast part can also be provided, with which the interior of the second housing 10 is closed on the underside in connection with a closure and carrier 23 of the activatable drive.
  • a bottom cover 20 At the bottom of the second Housing 10 is preferably a bottom cover 20, which may have a cable opening in its center.
  • the section AA through the lower cover 20 is shown in the figure at the bottom of FIG.
  • the lower cover 20 can have one or more fastening holes 17 . This can be used to screw the lower cover 20 to the second housing 10 using cover screws 21 .
  • a sealing foil 26 can be provided between the lower cover 20 and the second housing 10 .
  • Housing 10 may be integral with housing 6. In other embodiments, all parts 20, 10, 6 and 19 can be injection molded in one piece, with or without inserts sensor 22, closure 23 including piston 11, drive 7 and contact piece 3.
  • the second housing 10 and the first housing 6 are usually made made of an electrically non-conductive plastic; if electrically conductive materials are used here, the contact elements must be stripped on all sides. When the contact piece 3 is retracted, the insulation of the contact elements 2a and 2b would be scraped off, torn open or torn off at the contact points in order to electrically connect the two contact elements 2a and 2b to one another again.
  • the contact piece 3 can be made of metal or of a non-conductor coated with electrically conductive material. For example made of ceramic or plastic.
  • FIG. 2A and 3A below show schematic side views of an electrical connecting switching element according to the invention in the electrically unconnected state, a view according to section BB being shown above in each case. 2B and FIG. 3B each show a schematic side view of a connecting switching element according to FIG. 2A or FIG. 3A in the electrically connected state.
  • the activatable drive 7 is triggered, then the piston 11 is driven by the gas pressure generated inside the second housing 10 .
  • the piston seal 12 is intended to ensure efficient driving of the piston 11 by preventing gas losses.
  • the piston seal 12 can also be designed to be self-locking, ie when pressure is applied, the piston 11 arches up at the rear edge in such a way that a seal between the piston 11 and the second housing 10 can also occur here. Under certain circumstances, the piston seal 12 can be dispensed with entirely.
  • the piston 11 generates the drive 7 that can be activated Gas pressure is converted into force, which accelerates the contact piece 3 and, after the first contact with the contact elements 2a and 2b, is forced between them with force (Fig. 2A, the contact piece 3 always remains connected to the piston 11) or shot in (Fig. 3A, the Contact piece 3 detaches from piston 11) before it moves into contact elements 2A and 2B.
  • the piston 11 can be made of metal or an electrically insulating material.
  • the ignition circuit and the second housing 10 can be electrically isolated from the main circuit via the electrical connection contacts 8a and 8b. If the piston 11 is made of an electrically insulating material, an insulation adapter 18, as shown in FIGS. 3A and 3B, can be dispensed with if the ignition circuit is to be separated from the main circuit. In FIGS. 2B and 3B the activatable drive 13 is in its triggered form.
  • FIGS. 2B and 3B one can see in the upper illustrations with section BB how the contact piece 3 is surrounded by the contact elements 2a and 2b bent in the shape of a part circle from two opposite sides 4a and 4b.
  • the incident contact piece 3 is received by the receiving structure formed from the contact elements 2a and 2b, so that good electrical contact is established between this receiving structure and the contact piece 3.
  • all three components are welded together at the contact points.
  • the contact elements 2a and 2b are not in direct contact with the boundary 15 of the holding device, they can move in the direction of the boundary 15 when the contact piece 3 is retracted, or the receiving structure formed by it can expand without the material being plastically deformed that after the deceleration or retraction of the contact piece 3 there is a stable and constant contact pressure.
  • the contact piece 3 can be attached or even deformed in order to ensure good electrical contact.
  • the current flowing through them can be greatly reduced between the contact elements 2a and 2b, and the electrical resistance present here can also convert a large amount of energy into heat in the assembly. Copper and stainless steel are therefore preferred as materials for the contact elements 2a and 2b.
  • the holding device 6 for the electrical contact elements 2a and 2b (first housing) secures the position of the contact elements 2a and 2b in relation to one another and in relation to the incident contact piece 3. At the same time prevents the holding device 6 with the limitation 15 that the receiving structure formed by the contact elements 2a and 2b is stretched too far when retracting the contact piece 3 and thus prevents the receiving structure from being plastically deformed.
  • the contact piece 3 is only moved in or pressed in between the contact elements 2a and 2b, since it does not detach from the piston 11, because this is preferably in the second housing 10 so can be moved far that the contact piece can be fully pressed between the two contact elements 2a and 2b.
  • FIGS. 3A and 3B an embodiment is shown in FIGS. 3A and 3B, in which the second housing 10 has so-called stop elements 14 for the piston 11, so that the piston 11 stops at the end of its movement.
  • the contact piece 3 is shot in between the two contact elements 2a and 2b, preferably by a short distance of free flight.
  • FIG. 4A and 4B, as well as Fig. 5A and 5B each show an embodiment according to the prior art, in which by triggering the activatable drive 7, a piston 11 within a housing 10 a contact piece 3 between two recesses of two parallel contact elements 2a and 2b is moved, thereby enabling a current flow I via the electrical connection contacts 8a and 8b.
  • the disadvantage of this embodiment is that the contact elements 2a and 2b are relatively far apart from one another and therefore cannot be arranged in such a space-saving manner as in the embodiments according to the invention.
  • the contacting of the contact elements 2a and 2b does not take place at the same time, but rather one after the other, so that the bridging of the electrical connection contacts 8a and 8b cannot take place as quickly as it is with the connecting switching element 1 according to the invention.
  • the contact piece 3 Even in versions in which the contact piece 3 is already seated in the contact element 8b or is electrically connected to it (not shown), the contact piece 3 still moves in the direction of the contact element 8b after the activation of the connecting switching element, with contact element 8b in particular then having to be ensured that the contact piece 3 after moving into the contact element 8b with the contact element 8a securely connects or contacts it securely.
  • the contact piece 3 must therefore be able to slide unhindered through the contact element 8b before it makes contact with the contact element 8a.
  • FIGS. 4A and 4B show an embodiment in which the contact piece 3 is still seated on the piston 11 when it is fully inserted between the contact elements 2a and 2b, ie the contact piece 3 is not free-floating but guided by the piston 11 pressed into the contact elements 2a and 2b.
  • Figs. 5A and 5B show an embodiment in which the housing 10 has stop elements 14 for the piston 11, so that the contact piece 3 cannot be guided by the piston 3 to the contact elements 2a and 2b, but by a by the activatable drive 7 acted upon pulse moves in free flight to the contact elements 2a and 2b and is thus shot into them.
  • the contact elements 8a and 8b are successively contacted by the contact piece 3 or are welded to the contact piece 3 shortly before it stops.
  • 6A and 6B show an embodiment in which there are two contact elements 2a and 2b designed as contact springs arranged in parallel, whereby the triggering of the activatable drive 7 causes the piston 11 to press the contact piece 3 onto the contact spring 2b, which then moves up to is pressed towards the contact spring 2a, so that the contact springs 2a and 2b are connected to one another, as a result of which a current I can flow from the electrical connection contact 8a to the electrical connection contact 8b.
  • this embodiment also has the disadvantage of requiring more space.
  • FIG. 7A to 7C show different forms of a pair of contact elements 2a and 2b which connect to the electrical connection contacts or are formed in one piece with these.
  • Fig. 7A shows an embodiment in which the Contact elements 2a and 2b are formed part-circular. Here the contact or the later welding to the contact piece 3 is circular to flat.
  • Fig. 7B shows an alternative embodiment of a pair of contact elements 2a and 2b, which are formed like a clamp. If a cylindrical contact piece 3 is used, contact is made with the driven contact piece 3 only four times linearly.
  • FIG. 7C shows a further alternative embodiment of a pair of contact elements 2a and 2b which are designed to be rubbing. If a cylindrical contact piece 3 is used, contact is made with the driven contact piece 3 only twice in a linear manner.
  • the contact piece 3 can also be polygonal or multifaceted on the outside instead of cylindrical, in order, for example, to facilitate welding to the contact elements due to the higher pressures then occurring at the edges of the contact piece 3 when it is inserted into the contact elements 2a and 2b 2a and 2b to be able to reach.
  • FIG. 8A shows a plan view along the imaginary central axis 5 of two electrical contact elements 2a and 2b of circular design with electrical connection contacts 8a and 8b.
  • the connection contacts 8a and 8b are bent at an angle here in order to be able to change the position of the connecting switching element in relation to the screwing points accordingly.
  • FIG. 8B shows the top view of the two contact elements 2a and 2b according to FIG. 7 rotated by 90°, so that the connection bores 9 of the two contact elements 2a and 2b can now be seen as an example.
  • FIG. 8C again shows the top view of the two contact elements 2a and 2b according to FIG.
  • connection bores 9 of the two contact elements 2a and 2b can be seen;
  • the two connection bores 9 of the contact elements 2a and 2b are shifted from the center line of the contact elements 2a and 2b in order to be able to position the entire connecting switching element again differently.
  • FIG. 9A shows a schematic side view of an electrical connecting switching element 1 according to the invention in the electrically non-connected state at the bottom, with a view according to section BB being shown at the top.
  • FIG. 9B shows a schematic side view of a connection switching element 1 according to FIG. 9A in the electrically connected state.
  • the linkage link 1 shown in Figures 9A and 9B is substantially identical to the linkage link 1 shown in Figures 2A and 2B except for the piston 11 which is telescopically constructed in Figures 9A and 9B.
  • FIG. 10 shows a schematic side view of an electrical connecting switching element 1 according to the invention in the electrically unconnected state at the bottom, with a view according to section B-B being shown at the top.
  • the contact elements 2a and 2b in FIG. 10 are formed with mirror symmetry.
  • the same reference numerals as in Figures 1, 2A and 2B can be used to refer to each other.
  • the housing 6 can - as shown in Fig. 10 - have the same shape as in Fig. 2A, with the same inner limits 15 for the holding device. As shown in FIG.
  • the contact elements 2a and 2b can have two surfaces which are mirror-symmetrical to one another and which can be parallel or inclined to one another. If the surfaces are parallel to one another, a plate-like contact piece 3, for example, can be accommodated between them (not shown in FIG. 10). If the surfaces are inclined to one another, the contact piece 3 is preferably wedge-shaped (as shown at the bottom of FIG. 10). With a corresponding shape of the contact elements 2a and 2b (a wedge-shaped cylinder with a slot-like interruption at the side), the contact piece 3 can also be conical.
  • FIGS. 11A and 11B below show a schematic side view of an electrical connecting switching element 1 according to the invention in the electrically unconnected state, a view according to section BB being shown above in each case.
  • a slotted conical tube 27 is used instead of a solid contact piece 3, which widens when the piston 11 retracts (FIG. 11B), thereby adhering to the two now firmly applied to the first housing 6 contact elements 2a and 2b and thereby electrically connects them to each other.
  • the previous gap between the contact elements 2a and 2b and the first housing 6 can approach zero here, which is required
  • the elastic/plastic element here is the slotted conical tube 27. If a potential separation between the piston 11 or ignition and contact elements 2a and 2b is desired, the piston 11 can be made entirely of plastic here.

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  • Switch Cases, Indication, And Locking (AREA)
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Abstract

L'invention concerne un élément de commutation de connexion électrique (1) pour court-circuiter rapidement et de manière fiable deux barres omnibus, comprenant deux éléments de contact (2a, 2b) électriquement conducteurs et une pièce de contact électriquement conductrice (3) pour connecter les éléments de contact (2a, 2b). La pièce de contact (3) ou un piston (11) peuvent être déplacés le long d'un trajet de déplacement et l'élément de commutation de connexion (1) peut ainsi être transféré d'un état électriquement déconnecté à un état électriquement connecté. Dans l'état déconnecté, la pièce de contact (3) n'est connectée électriquement à aucun des éléments de contact (2a, 2b) et, dans l'état connecté, la pièce de contact est connectée électriquement aux deux éléments de contact (2a, 2b). Les éléments de contact (2a, 2b) sont conçus de telle sorte que, dans l'état connecté, les éléments de contact (2a, 2b) entourent la pièce de contact (3) à partir de côtés opposés (4a, 4b).
EP21742701.2A 2020-07-10 2021-07-05 Élément de commutation de connexion électrique Pending EP4179557A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020118270.8A DE102020118270A1 (de) 2020-07-10 2020-07-10 Elektrisches Verbindungsschaltglied
DE202020104136.3U DE202020104136U1 (de) 2020-07-10 2020-07-17 Elektrisches Verbindungsschaltglied
PCT/DE2021/100583 WO2022008000A1 (fr) 2020-07-10 2021-07-05 Élément de commutation de connexion électrique

Publications (1)

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EP4179557A1 true EP4179557A1 (fr) 2023-05-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21742701.2A Pending EP4179557A1 (fr) 2020-07-10 2021-07-05 Élément de commutation de connexion électrique

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Country Link
EP (1) EP4179557A1 (fr)
DE (2) DE102020118270A1 (fr)
WO (1) WO2022008000A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417519A (en) * 1981-06-04 1983-11-29 Mcdonnell Douglas Corporation Explosive switch
SE9404455L (sv) * 1994-12-22 1996-06-23 Asea Brown Boveri Elektrisk kopplingsapparat
FR2953322B1 (fr) * 2009-11-27 2013-02-15 Snpe Materiaux Energetiques Interrupteur electrique formant coupe-circuit a actionnement rapide
DE102010010669A1 (de) 2010-03-04 2011-09-08 Siemens Aktiengesellschaft Schalter mit beidseitig fest verschienten Anschlussklemmen
DE102014110825A1 (de) 2014-07-30 2014-09-18 Peter Lell Elektrischer Schalter, insbesondere für hohe Spannungen und/oder hohe Ströme
DE102016124176A1 (de) 2016-12-13 2017-01-26 Peter Lell Elektrisches Unterbrechungsschaltglied, insbesondere zum Unterbrechen von hohen Strömen bei hohen Spannungen
FR3060833B1 (fr) * 2016-12-20 2020-10-30 Airbus Safran Launchers Sas Court-circuiteur pyrotechnique

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Publication number Publication date
WO2022008000A1 (fr) 2022-01-13
DE102020118270A1 (de) 2020-09-10
DE202020104136U1 (de) 2020-07-24

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