EP4143864B1 - Dispositif fusible electrique, procede de fabrication d'un dispositif fusible et procede de fonctionnement d'un dispositif fusible electrique - Google Patents

Dispositif fusible electrique, procede de fabrication d'un dispositif fusible et procede de fonctionnement d'un dispositif fusible electrique Download PDF

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Publication number
EP4143864B1
EP4143864B1 EP21713904.7A EP21713904A EP4143864B1 EP 4143864 B1 EP4143864 B1 EP 4143864B1 EP 21713904 A EP21713904 A EP 21713904A EP 4143864 B1 EP4143864 B1 EP 4143864B1
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EP
European Patent Office
Prior art keywords
housing
connection
connecting piece
connecting element
gap
Prior art date
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Application number
EP21713904.7A
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German (de)
English (en)
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EP4143864A1 (fr
Inventor
Thomas Lorenz
Jürgen Grosse
David Cacciatore
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.)
Auto Kabel Management GmbH
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Auto Kabel Management GmbH
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Publication date
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Publication of EP4143864A1 publication Critical patent/EP4143864A1/fr
Application granted granted Critical
Publication of EP4143864B1 publication Critical patent/EP4143864B1/fr
Active legal-status Critical Current
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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
    • H01H39/006—Opening by severing a conductor
    • 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
    • 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
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H2039/008—Switching devices actuated by an explosion produced within the device and initiated by an electric current using the switch for a battery cutoff

Definitions

  • the subject matter relates to an electrical safety device, a method for producing a safety device and a method for operating an electrical safety device.
  • motor vehicles increasingly need to transmit high levels of power between energy sources (producers and storage units) and consumers, particularly between the battery and the drive. This usually happens via electrical cables and preferably high electrical voltages are used to keep the ohmic losses of energy transmission low.
  • the voltages used are often well above the 12V or 24V previously used in the electrical vehicle supply network and sometimes reach several hundred volts. The risks of these life-threatening voltages must be kept low for vehicle occupants, passers-by and rescue workers through appropriate safety technology.
  • Safety devices have been used for this purpose in the past, often comprising a gas or pyrotechnic actuator and either a conductor with a tapered breaking point or two conductors connected by a connector.
  • a drive can quickly initiate a movement on a time scale of a few milliseconds and, in interaction with the guide elements prepared for this purpose, can cause electrical separation.
  • the drive breaks through Conductor at its predetermined breaking point, in the second the contact between the connecting piece and at least one conductor is separated by the drive.
  • the problem is that the taper that is often introduced for the predetermined breaking point reduces the cross section and thus increases the electrical resistance. Furthermore, high forces are required for the breakthrough and bending of the conductor materials to ensure separation. In addition, the elastic restoring forces of the conductor can move it back towards its original position and lead to an undesirable restoration of the electrical connection.
  • the publication EP 0 690 466 A1 relates to a pyrotechnic high-current fuse element.
  • the publication GB 2 577 346 A describes an arrangement for interrupting a current path.
  • the publication WO 97/41582 A1 relates to a pyrotechnic switching element for electrical circuits.
  • the object of the object was to provide an electrical safety device with low ohmic resistance that can be separated quickly and permanently.
  • an electrical safety device initially comprises a housing.
  • the housing can be closed or partially closed. It may include straight walls and have a rectangular design, each with parallel opposing walls and substantially rectangular housing cross sections, or may include partially curved or otherwise shaped walls that deviate from a smooth surface. It is also possible for the housing to have at least a round cross-section, in particular to have a cylindrical shape with a substantially round or elliptical cross-section or to be essentially spherical in shape.
  • the housing is preferably at least partially formed from an electrically non-conductive material, for example plastic, ceramic or similar materials.
  • the housing protects the live elements of the safety device and there is no risk of accidental contact with another conductive component, which could pose a risk to the vehicle occupants, for example.
  • all safety-relevant processes are protected from mechanical, other electrical or other influences as well as moisture, so that functionality is guaranteed over a long period of time. It is possible to keep the housing airtight, in particular to seal all entrances and any joint seams, and/or to fill it with a gas in order to further increase the durability of the enclosed components.
  • connection tabs are inserted into the housing.
  • Several pairs of connection tabs can also be guided into the housing.
  • the connection tabs can be guided into the housing from opposite sides, or from the same side, or from sides that are essentially perpendicular to one another, or from any other sides.
  • Each of the recesses in the housing provided for the connection tabs can be larger in at least one direction of expansion of the recess than the extent of the cross section of the respective connection tab in the respective direction of expansion, or can be essentially flush with the side surfaces of the respective connection tab.
  • connection tabs can be made of plastic, silicone, rubber, or another material that is preferably non-conductive.
  • the inner part is protected by the housing from influences such as moisture, corrosive gases, high temperatures and other influences and the inner part of the connection tab can thus be optimized solely for the function within the housing without, for example, having to minimize the area of non-insulated areas or a having to apply a protective coating.
  • the outer part can, for example, be insulated and/or otherwise coated and/or equipped with connections for contacting other circuit elements.
  • the connecting tabs are preferably held in a firmly defined position by the housing, even when force is applied to the connecting tabs.
  • fastening means in particular strain relief
  • the housing may have suitable elements to engage these fasteners on the connection tab.
  • the opening itself can engage in recesses on the connecting tab; the opening cross section can have projections for this purpose.
  • One or more projections and gripping elements may be arranged around the opening. Recesses can be provided into which elements arranged on the connecting tabs can engage.
  • connection tabs on the housing ensures that no damage to the securing device occurs in the event of mechanical influences on the connecting tabs, for example during assembly, and that the connecting tabs are held in a constant position when force is applied to actuate the securing device.
  • connection tabs are made of a conductive material, preferably a metal material, in particular copper or a copper alloy or Aluminum or an aluminum alloy.
  • the conductors can be at least partially coated with a second material, in particular a metal material.
  • the connection tabs can be flat conductors with a substantially rectangular cross section or round conductors with a substantially round cross section.
  • the connecting tabs can have a substantially constant cross section or have tapers and widenings. In particular, it is possible for the connecting tabs to be widened at their ends inside the housing and to have flat areas.
  • connection tabs include side surfaces that define the boundary between conductor material and the conductor's surroundings.
  • the side surfaces may be flat, concave, convex, cylindrical, tubular, spherical and/or otherwise shaped.
  • the connection tabs can be formed from a solid material or formed as a stranded conductor.
  • the connection tabs can have an insulating layer at least partially in the outer part and partially in the inner part and can be at least partially stripped of insulation on the inner part. The connection tabs allow power to flow into and out of the fuse device housing.
  • each of the two end tabs inserted into the housing.
  • the gap extends from one or more side surfaces of a first connection tab to one or more side surfaces of a second connection bracket.
  • a gap surface can be defined for each connection tab, which is a conductive side surface that adjoins the gap.
  • the direction of extension of the gap runs between the gap surfaces of two connecting straps.
  • the gap surface of each connecting tab can be at least partially flat, at least partially concave or convex, and/or divided into several partially flat and/or concave and/or convex partial planes, in particular partial planes can be semi-tubular, cylindrical, or spherical .
  • a volume of the gap spans between the partial planes, which can be defined by sectional cross sections.
  • the gap cross section can be constant along at least one spatial direction. It is also possible that the cross section is along at least one Spatial direction changes, in particular that the cross section tapers along a direction, in particular monotonically decreasing along a spatial direction. Preferably, the distance of each point of the circumferential line of the cross section to the geometric center of gravity of the surface is essentially reduced along at least one spatial direction.
  • the cross section can also be constant in sections along at least one spatial direction and its area can decrease in sections.
  • the gap can be between the two end faces at the end of one of two connecting tabs or between longitudinal surfaces (along the surfaces of the connecting tab running in the longitudinal direction) of each connecting tab or between a longitudinal surface of a first connecting tab and an end face of a second connecting tab.
  • the gap ensures electrical insulation of the two connection tabs. As long as the gap only contains the gas filling the housing, no current can flow between the two connection tabs.
  • the width of the gap, the gas in the housing and other factors such as temperature determine the breakdown voltage at which an arc and thus an electrical connection is created. Larger gap widths lead to a higher dielectric strength of the safety device.
  • the connecting tabs can act as a guide for an element located in the gap in this spatial direction.
  • a tapering gap facilitates the movement of an element in the gap in a preferred direction and enables the connecting element to be separated after a short distance.
  • the safety device has a connecting piece.
  • the connecting piece is at least partially made of an electrically conductive material, preferably of a metal material, in particular of copper or a copper alloy or of aluminum or an aluminum alloy.
  • the connecting piece can have an at least partially rectangular cross section and/or have a round or elliptical cross-section or another shaped cross-section.
  • the connecting piece preferably comprises two at least partially and/or partially flat side surfaces, in particular two flat side surfaces arranged on opposite sides of the connecting piece and/or parallel to one another.
  • One, two or more side surfaces can also be curved concavely or convexly.
  • the connecting piece has a constant cross section along at least one axis.
  • the connecting piece has a cross-sectional area that falls monotonically along at least one spatial direction. In particular, the distance between each point of the contour of the cross section and the geometric center of gravity of the cross section can decrease monotonically along a spatial direction.
  • the cross-sectional area can also be constant in sections and reduce in sections.
  • the connecting piece In the installed state, the so-called closed position, the connecting piece is arranged in the gap between the two connecting tabs and is in mechanical contact with the connecting tabs on its contact surfaces.
  • the connecting piece therefore preferably fits into the gap essentially without play. Before fitting into the gap, it can be larger than the gap.
  • the contact surfaces are at least partially arranged in the area of the gap surfaces of the connecting tabs.
  • the connector establishes electrical contact between the two connection tabs.
  • the present solution has the advantage that the connecting piece can be removed from the gap with less force, compared to the force required to break through a connecting tab.
  • a drive is provided in the housing of the safety device. This can include an electrically or otherwise operated motor, pneumatics, hydraulics, a piezoelectric, gas-operated or pyrotechnic drive, for example a squib.
  • the drive can be arranged in a recess in the housing and/or attached to the inner wall of the housing, for example glued, screwed, riveted, secured with snap elements or otherwise.
  • the drive When triggered, the drive is designed to exert a force on at least the connecting piece and to remove it from the closed position in which it electrically connects the connecting tabs and to move it into an open position in which the connecting tabs are no longer electrically connected to one another.
  • the connector can be electrically isolated from one or both connection tabs in the open position.
  • the connecting tabs essentially remain in their position and are essentially not moved by the operation of the drive. It is also possible that the connecting tabs are moved and/or bent and/or broken by the drive.
  • a free space in the housing can be provided for the connecting piece, into which it can be moved by the drive.
  • the freedom of movement of the connecting piece in the free space i.e. in the so-called open position, can be restricted.
  • the height in the direction of movement of the drive can be only slightly larger than the height of the connecting piece and/or the width of the free space can only be slightly larger than the width of the connecting piece.
  • the drive enables the controlled separation of the connection between the connecting piece and the connection brackets by removing the connecting piece from the gap between the two connection lugs. This allows the safety device to be triggered by a control signal and to safely develop its separating effect within the housing.
  • a pyrotechnic element for example a squib
  • a drive can develop a high level of force, particularly in the short term, and is cost-effective. It allows the safety device to be actuated once and is therefore well suited for a one-time, irreversible separation.
  • the connecting piece is pressed in a press fit between the two connecting tabs. Before pressing, the connecting piece is the same size or larger than the gap enclosed by the two connecting tabs in the direction of extension of the gap. Hydraulic, pneumatic, hydrostatic, motor-driven or other presses with high pressing pressures can be used for pressing. In this way it is ensured that large-area contacting of the conductive surfaces of the connecting piece and the respective connecting tab is achieved.
  • a further advantage of the press fit is that after the connecting piece is moved out of the gap, it deforms elastically and expands again, in particular in the spatial direction in which the gap extends.
  • it can become elastic deform, especially expand. This expansion means that the connecting piece can no longer slip back into the gap when the driving force is lost and the connecting piece springs back. This prevents recontacting after the safety device has been triggered.
  • the drive can remove the connecting piece from the gap between the two connecting lugs. Since lower forces are required than, for example, if a line breaks through, the drive can be dimensioned relatively small and the safety device remains light and inexpensive.
  • the connector slides into a cavity in the housing and remains there.
  • the housing protects the environment from the mechanical force of the drive as well as from any detached fragments, flakes and/or waste products that arise from operating the drive and loosening the connecting piece from the connection lugs.
  • the housing further ensures that the drive can transmit its mechanical force to the connecting piece and that the connecting tabs remain essentially stationary relative to the drive, in particular this can be ensured by the fastening means that connect the connecting tabs to the housing wall.
  • the two end faces of the two connecting tabs can be flat and aligned parallel to one another; the end faces can also be concave or convexly curved and/or jagged, preferably such that the cross-sectional area of the gap enclosed by the surfaces is essentially constant along a spatial direction and / or tapers monotonically at least in sections along a spatial direction.
  • the connecting piece can also be essentially hemispherical and/or cylindrical and/or conical, at least in sections. Due to a substantially constant cross section, the connecting tabs can act as a guide for the connecting piece. This can be moved by the drive and slide along the gap surfaces of the connecting tabs until it has completely left the gap.
  • a concave shape of the gap surfaces of the connecting tabs and a Convex shape of the connector surfaces help to move the connector along a fixed straight trajectory.
  • a tapering of the gap and the connecting piece can accelerate the separation, since a smaller displacement distance of the connecting piece is sufficient for separation from the connecting tabs compared to a constant cross section in which the entire height of the connecting piece has to be overcome in the direction of movement.
  • a taper also specifies a preferred direction of displacement and no frictional resistance has to be overcome over larger sliding distances.
  • At least one connecting tab comprises an end face.
  • Several connecting tabs can also include end faces.
  • the end faces of two connecting lugs can face each other in the housing.
  • the connecting piece can preferably be arranged with a precise fit between two mutually facing end faces.
  • at least one connecting tab comprises a longitudinal surface that runs laterally along the longitudinal direction of the connecting tab.
  • Several connecting tabs can also have longitudinal surfaces.
  • the longitudinal surfaces can be gap surfaces, so that the gap spans between the longitudinal surfaces.
  • the connecting piece can be arranged in a press fit between the longitudinal surfaces.
  • the contact surface can be a wide longitudinal surface.
  • the surface of the contact surface deviates from a smooth surface structure and has a beveled, curved or step-shaped surface or a sectional combination of these different ones Textures. Compared to a flat contact surface of the conductor, the contact surface is increased.
  • the connecting piece and/or the connecting tabs can be at least partially coated.
  • the elements can be coated in the area of the contact surface between the connecting piece and the connecting tab.
  • the coating is preferably formed from a conductive material, preferably a metal material, which preferably differs from the other material of the connecting piece and/or the connecting tab.
  • a possible coating material is tin and/or nickel; alternatively, aluminum, copper or other materials can be used. The coating achieves a change in the surface properties, which can promote the connection between the connection tab and the connecting piece.
  • the material of the coating has a lower material hardness, for example a lower Rockwell hardness, than the main component of the connecting tabs and the connecting piece.
  • a lower material hardness for example a lower Rockwell hardness
  • the connecting piece and/or at least one of the connecting tabs is formed from a metal material, in particular from copper or a copper alloy or from aluminum or an aluminum alloy.
  • a metal material can withstand the pressures of compression and at the same time offers high conductivity.
  • connection tabs is formed from an electrically conductive flat part, in particular a sheet metal or strip.
  • the connecting tab can comprise a single, possibly formed, flat part or several flat parts.
  • the contact surface and/or gap surface of the connecting tab is a longitudinal surface of the flat part, in particular a wide longitudinal surface.
  • the flat part of the connecting tab can be bent after insertion into the housing if the connecting tabs are inserted into the housing from opposite sides. It is also advantageous if the connection tabs are in contact with the housing wall in order to be supported by the housing in the event of any forces acting on them. By contacting the large longitudinal surfaces, the contact resistance can be kept low.
  • the connecting piece is at least partially formed from a flat part.
  • a single flat part which may be formed into a more complex shape, can be used, or several connected flat parts can be used.
  • the connecting piece can have a large area in the area of at least one contact surface for contacting the respective connection tab. The areas of the contact surfaces can be electrically and/or mechanically connected via another flat part.
  • the connecting piece can comprise three flat parts assembled to form an H-element. It is also possible to combine flat parts with one or more elements made of solid material.
  • the elements of the connecting piece can preferably consist of a metal material, in particular copper or a copper alloy or aluminum and an aluminum alloy.
  • the connecting piece can comprise a flat part or a contact element partially formed as a flat part as a first element and a second support element.
  • the support element can preferably consist of a non-conductive material, such as plastic, rubber, synthetic resin, or other materials.
  • the support element can also comprise a conductive material.
  • the support element can be in mechanical contact with at least one of the connection tabs. However, it is also possible for the support element not to touch the connecting tabs.
  • the contact element can encompass the support element on at least three sides.
  • the contact element In the closed position, the contact element is in mechanical and electrical contact with both connecting tabs. It electrically connects the two connection tabs.
  • the support element ensures the mechanical connection between the connecting piece and the connecting tabs in the area of the contact surfaces and at least partially absorbs the force of the compression.
  • the contact element can comprise two flat parts in the area of the contact surfaces of the connection tabs and a conductor that connects the two flat parts.
  • the support element can be located between the two flat parts of the contact element.
  • the contact element can also be formed from a single flat part, for example in a U-shape or cup-shape around the support element. It is also possible for the support element to fill several, possibly not interconnected, free spaces within a contact element formed from a plurality of flat parts, for example free spaces in an H-shaped sheet metal composite of the contact element.
  • Both the contact element and the support element are pressed together as a coherent connecting piece between the connection tabs.
  • the use of a support element in the connecting piece enables the pressures acting on the connecting piece during pressing to be at least partially absorbed by the support element. In this way, less metal can be used than with a connector made of solid material, which is thanks to the support element less or no mechanical support function is fulfilled anymore, and the production of the safety device becomes cheaper.
  • the connecting piece Due to the press fit, the connecting piece is longer before pressing between the connecting plates in the direction of extension of the gap than after pressing. Due to the elasticity of the materials of the connecting element, either the solid material, the flat part, the material of the support element and/or any other components of the connecting piece, the connecting piece increases in size after being removed by the drive. In the open position, the connecting piece does not fit into the gap between the connection tabs.
  • insulators are arranged on at least one connection tab on the side facing away from the drive, into which the connecting piece is moved by the drive when it is removed from the gap.
  • These insulators can be part of the insulation coating of the connection tab and/or be parts of the housing as projections.
  • the respective insulator can be at least partially flush with the gap surface of the respective connection tab and/or at least partially extend beyond the gap surface towards the middle of the gap. The insulator(s), in conjunction with the expansion of the connector after removal from the closed position and moving to the open position, ensure that the connector cannot come back into contact with both connection tabs.
  • the insulator is made of an elastic, non-conductive material, for example silicone, rubber, plastic, or one or more other materials.
  • the insulator can have a rectangular, round, or other cross-section and/or be slanted towards the gap to provide mechanical resistance when passing the connecting element. It is also possible for the insulators to be snap elements which can be deflected through the connecting piece by a folding mechanism and snap back into their original position after passing through the connecting piece in order to prevent the connecting piece from slipping back.
  • guides are provided along which the connecting piece can move.
  • the guides can penetrate the connecting piece and/or be provided on the housing and/or on the connecting tabs.
  • the guide can include rails, pipes, ropes or similar devices running in the drive direction and is preferably made of a non-conductive material.
  • the guide elements, in particular rails, can be arranged on the inner wall of the housing. The guide restricts the freedom of movement of the connecting piece, which can therefore move essentially along a straight line. This can prevent the connecting piece from approaching the connecting tabs, particularly in the open position.
  • connection tabs can be inserted into the housing and each pair can be connected to a respective fuse conductor by a respective connecting piece.
  • a drive can be provided for all fuse conductors, which essentially disconnects all fuse conductors simultaneously. It is also possible for each fuse conductor to have its own drive and for the connectors of each fuse conductor to be triggered independently of one another. It is also possible for a subset of the fuse conductors to be operated together by a drive and another subset to be operated separately by a respective drive.
  • Each chamber can contain a drive, one or more fuse conductors and other elements, including the insulators.
  • a multi-phase, for example three-phase, connection can be secured with an element and all phases can be separated separately or simultaneously.
  • Several energy storage devices and/or generators that jointly feed power into the distribution network can also be separated at the same time. Separation into chambers enables the individual fuse conductors to be separated separately and also ensures that waste products resulting from the separation, such as splinters, dust, soot, do not reach the area of the other fuse conductors and possibly hinder the separation there.
  • the abrupt movement of the connecting piece in a small space can briefly create high pressures inside the housing, especially in the free space into which the connecting piece moves. So that this pressure does not hinder the movement of the connecting piece and/or even trigger an opposite movement, it can be advantageous to allow the gas in the housing to escape.
  • ventilation means in the area of the housing into which the connecting piece is moved by the drive. These can be a valve, a hole, a seal that can be pierced by the pressure, or similar devices.
  • the venting device allows the gas in the housing to leave the housing when compressed by the movement of the connecting piece. This does not hinder the separation process and a safe separation is guaranteed.
  • one exemplary embodiment provides for arranging insulation around the fuse conductor, comprising connection tabs and a connecting piece, which fills the space between the fuse conductor and the housing wall. The seal should not hinder the movement of the connecting piece when it is removed from the gap.
  • seals can be provided at openings in the housing, in particular for the connecting tabs and/or joining seams of the housing.
  • the seal can preferably be formed from an elastic, non-conductive material such as silicone, rubber, soft plastic or similar materials. This means that little or no gas can escape past the fuse conductor and out of the drive chamber, except by removing the connecting piece from the gap between the connection tabs.
  • a connecting piece is first produced.
  • a solid material connector can be manufactured by casting, cutting, stamping, forging, or similar processing steps.
  • each individual sheet metal element can be produced, for example, by rolling and then formed, for example, by deep drawing.
  • the support element can, for example, be cast, sprayed, cut out and then connected to the contact element made of sheet metal elements. It is also possible to cast or spray the support element into and/or around a contact element.
  • connection surfaces of the connecting piece and/or connection lugs can be coated. This can be done, for example, by electroplating, tinning, hot-dipping or other processes. An existing coating can also be removed from the connection tabs and/or a coating can be applied in the area of the insulation, which ensures the electrical separation of the connector and connection tabs in the open position.
  • the connecting tabs and the connecting piece are then pressed together under high pressure using a mechanical pressing process.
  • a mechanical pressing process For example, hydraulic, pneumatic, hydrostatic, motor-driven or another pressing technology can be used.
  • the housing equipped with a fuse conductor, drive and, if necessary, other elements such as insulators, seals, etc. It is also possible to first insert the connection tabs and the connecting piece into the housing and then press them inside the housing.
  • the connecting piece of the safety device is initially in the closed position.
  • Current can flow through the fuse conductor.
  • a force is exerted on the connecting piece and releases it from the closed position and moves it into the open position. Due to the elastic expansion of the connecting piece, it remains in the open position and cannot return to the closed position.
  • the insulators ensure permanent electrical separation from the connector with at least one connection tab.
  • Figure 1 shows a safety device 1.
  • This includes a housing 10, a first connection tab 11 and a second connection tab 12.
  • the housing 10 protects the security device 1 from external influences.
  • the housing 10 can also serve as a holder for the connection tabs 11 and 12, as well as other elements of the safety device 1.
  • the two connecting tabs 11, 12 are connected by a connecting piece 13.
  • the connecting piece 13 is arranged between the two connecting tabs 11, 12 in the gap 26 and is in mechanical and electrical contact with the connecting tabs 11, 12 on contact surfaces 21b and 22b.
  • the connecting tabs 11, 12 in turn touch the connecting piece 13 on the contact surfaces 21a, 22a.
  • the connecting piece 13 is arranged between the end faces of the connecting tabs 11, 12.
  • the drive 17 can be arranged in a recess in the housing 10 and / or attached to the inner wall of the housing 10, for example glued, screwed, riveted, or otherwise attached.
  • a cavity is provided, the drive chamber 23.
  • a second cavity 24 is provided on the side of the housing 10 that faces away from the drive 17.
  • insulators 16 (16a and 16b in.) on the connecting tabs 11, 12 Figure 1 ) intended.
  • the insulators 16 can be part of an insulation applied to the connection tabs 11, 12 and/or part of the housing 10 in the form of, for example, projections.
  • Figure 1b shows an exemplary operation of the safety device 1.
  • the drive 17 moves the connecting piece 13 out of its closed position in the gap 26 between the two connecting tabs 11, 12 and into the open position outside the connecting tabs 11, 12. Due to the elastic expansion of the connecting piece 13 this after the movement from the press fit between the two connecting tabs 11, 12 wider than before. It remains in cavity 24.
  • the insulators 16a, 16b ensure the insulation of the connecting piece 13 in the open position of at least one of the two connection tabs 11, 12.
  • the housing 10 is preferably arranged closely around the connecting piece 13 and / or at least one of the connecting tabs 11, 12.
  • the drive chamber 23 and the cavity 24 are therefore separated from one another, preferably at least almost airtight, which is particularly advantageous for pyrotechnic and gas-operated drives 17, since a pressure can be formed in the drive chamber 23, which leads to the movement of the connecting piece 13.
  • the cross section of the connecting piece 13 is essentially constant along the direction of movement of the drive 17, spatial direction z.
  • the connecting piece 13 can thus slide along the connecting tabs 11, 12 when moving out of the gap 26.
  • Figure 2 shows an exemplary embodiment with connecting tabs 11, 12 made of sheet metal.
  • the connection tabs are arranged on opposite sides of the housing 10 and have been bent downwards with the connecting piece 13 to enlarge the contact surfaces 21a, 22a (consequently also contact surfaces 21b, 22b).
  • the connection tabs 11, 12 also rest on the inner wall of the housing and are supported by it.
  • the connecting piece 13 according to Figure 2 is partially formed from a sheet metal element 15.
  • the sheet metal element 15 is arranged on a support element 14.
  • the sheet metal element (contact element) 15 serves the purpose of electrically connecting the two connecting tabs 11, 12 to one another.
  • the sheet metal of the contact element 15 can be placed over the support element 14, for example in a U-shaped or cup-shaped manner, and can surround it on three sides.
  • the support element 14 can, as in Fig. 2 shown have a cavity pointing downwards towards the drive. This can absorb forces when the connecting piece 13 is pressed and can be pressed slightly inwards, so that its width in the x direction is reduced in the press fit.
  • a further expansion of the connecting piece 14 can be achieved in comparison with a connecting piece 13 and/or supporting element 14. In this way, the fixation of the connecting piece 13 after release from the gap 26 in the upper area 24 is achieved with increased security.
  • the contact element 15 may comprise several electrically conductive flat elements, such as sheets or strips, one or more of which are arranged on the contact surfaces 21b, 22b to the two connecting tabs 11, 12 and their contact surfaces 21a, 22a.
  • the metal sheets on the contact surfaces 21b, 22b are connected by another conductive element, which can be a metal sheet, a solid material component and/or a cable or another conductive element.
  • the support element 14 serves to absorb mechanical pressure that arises when the connecting piece 13 is pressed. It is located together with the contact element 15 between the connection tabs 11, 12 and can touch these in addition to the contact element 15. Preferably, only parts of the contact element 15 touch the contact surfaces 21a, 22a of the connection tabs 11, 12 in order to maximize the conductive contact surface as much as possible.
  • a support element 14 made of an optionally non-conductive or conductive material with a conductive contact element 15 made of several individual parts made of sheet metal and / or solid material, the weight and costs are reduced compared to a connecting piece 13 made of solid material.
  • the mechanical and electrical functions of the connecting piece 13 are separated: the support element 14 takes over the mechanical absorption of pressure and the contact element 15 establishes the electrical connection between the connection tabs 11, 12.
  • FIG 2b The open position of the connecting piece 13 and thus the electrical separation of the two connection tabs 11, 12 from each other is shown.
  • the connecting piece 13 expands after leaving the gap 26 and cannot slide back into the gap 26.
  • the insulators 16a, 16b permanently interrupt the electrical contact between at least one connection tab 111, 12 and the connecting piece 13.
  • the sheet metal elements in the area of the contact surfaces 21b, 22b can be dimensioned so that they can slip over the insulators 16a, 16b, but a downwardly projecting part of the support element 14 remains in the gap 26.
  • the support element 14 can in particular be dimensioned so that the part protruding downwards over the contact element 15 fits at least almost precisely into the gap 26 in the open position and the connecting piece 13 is thus stabilized in the open position.
  • Figure 2c shows a top view of the safety device 1.
  • a seal 18 is arranged on both sides of the strand of connecting tabs 11, 12 and connecting piece 13. It serves the purpose of isolating the two cavities 23 and 24 of the housing 10 from each other and making it possible to build up a pressure in the drive chamber 23 without a relevant amount of gas penetrating from the cavity 23 into the cavity 24 and the pressure in the cavity 23 can get lost like that.
  • the two cavities are separated from each other in a gas-tight manner.
  • FIG. 3ac a substantially cylindrical structure of the security device 1 is shown.
  • the cross section of the connecting piece 13 is round and in the closed position it is enclosed by the connecting tabs 11, 12.
  • the connecting tabs 11, 12 are widened in the area of the contact surfaces 21a, 22a; in particular, their shape is essentially that of half tubes. In this design the contact area is increased.
  • the connecting piece 13 is also moved along a channel when moved by the drive 17, so the connecting tabs 11, 12 act as a guide.
  • connecting tabs 11, 12 encompassing the connecting piece 13
  • the connecting piece 13 here has recesses in the area of the contact surfaces 21b, 22b, into which corresponding convex shapes of the connecting tabs 11, 12 engage.
  • Figure 5 shows an alternative exemplary embodiment in which the two connecting tabs 11 and 12 are not guided into the housing 10 from opposite sides with end faces facing one another, but are essentially aligned parallel to one another coming from the same side.
  • connection holes 11 and 12 and the connecting piece 13 can rest on the inner wall of the housing essentially without any gap, so that the areas 23 and 24 are essentially insulated from one another, in particular insulated in a gas-tight manner. This has a similar effect to the 18 in. insulation Fig. 2c for example.
  • the connecting tabs 11, 12 can be arranged essentially parallel to one another on opposite sides, see Fig. 6a-c , or that a first connection tab is aligned essentially perpendicular to the second connection tab.
  • the contact surface 21a, 22a (consequently also contact surfaces 21b, 22b) between the connecting piece 13 and the connecting tab 11, 12 is a longitudinal surface for both connecting tabs 11, 12. This can be a narrow or a wide longitudinal surface.
  • the insulators 16a, 16b are in Fig. 5 and 6 again arranged on the conductors on the side facing away from the drive 17, in the exemplary embodiment in Fig. 5 on the end faces of the connecting tabs 11, '12 and in the exemplary embodiment Fig. 6 on the narrow longitudinal surfaces of the connecting tabs 11, 12.
  • the insulators 16 also prevent electrical contact between the connecting tabs 11, 12 and the connecting piece 13 in the open position.
  • Fastening means can be provided to attach the connection tabs to the housing 10.
  • Figure 7ac shows some embodiments of such fasteners.
  • connection tabs 11, 12 are provided on the walls of the housing and fastening means 20a, 20b, here projections, are provided on the edges of the recess through which the connecting tab is guided, which include the connecting tab 11, 12.
  • An extended projection is provided towards the inside, which extends to the edge of the contact surface 21b, 22b of the connecting tab 11, 12 and can function as an insulator 16.
  • the connecting tab 11, 12 has fastening elements 19a, 19b, here recesses.
  • the projections of the housing 10 can engage in these recesses and thus fix the connecting tab 11, 12. Fixing the connecting tab 11, 12 is particularly important when removing the connecting piece 13 from the gap 26, since this allows force transmission between the drive 17 and the connecting piece 13 to be ensured. If the connection tabs 11, 12 and the connecting piece 13 were able to move together, the connection tabs 11, 12 would not be detached and thus electrically separated from one another.
  • FIG. 7b Fastening means with several recesses 19 per side in the connecting tab 11, 12, into which several projections 20 of the housing 10 engage.
  • the insulator 16 is applied to the conductor 11 and is not part of the housing 10. Because the fastening means (projections) 20 are each attached to projections projecting from the housing wall are attached, they can give way when installing the connecting tab 11, 12 and make it easier to insert the connecting tab 11, 12.
  • Fig. 7c shows a simpler version in which the entire housing wall engages in a recess 19 in the connection tab.
  • Fig. 7d An exemplary embodiment is given in which the conductor has projections and engages in recesses in the housing 10.
  • All connectors off Fig. 1 , and 3-6 can be formed from a solid material or from a composite of a support element 14 and a contact element 15. This is done in Fig. 8a-f illustrated.
  • the connecting piece 13 can be formed from solid material, for example a metal material.
  • the connecting piece 13 as in Fig. 8c-g shown is formed from a support element 14 and a contact element 15.
  • Fig. 8c, d show an H-shaped contact element 15 made of two flat elements or elements made of solid material in the area of the contact surfaces 21b, 22b and a third connecting element between the flat elements.
  • the connecting element can be a sheet metal with a surface normal that is essentially parallel to the spatial direction z or to the spatial direction y or in another spatial direction, or a conductor made of solid material, for example a round conductor or a flat conductor, which is either in the volume between the contact surfaces 21a, 22a (consequently also contact surfaces 21b, 22b) are located and/or are enclosed by the support element.
  • the support element fills the spaces between the flat elements on the contact surfaces.
  • Fig. 8e, f show a cylindrical connecting piece made of contact element 15 and support element 14 and Fig. 8g, h show a cylindrical connecting piece with troughs provided for the connecting tabs 11, 12, which also has a support element 14 and a contact element 15 includes.
  • Support element 14 and contact element 15 can each be composed of several elements.
  • the support element 14 can also protrude beyond the parts of the contact element 15 on the contact surfaces 21b, 22b, see here Fig. 8f and the connecting element for electrically connecting the contact surfaces 21b, 22b of the connecting piece 13 can also describe any paths outside the volume enclosed by the contact surfaces 21a, 22a.
  • Fig. 9 af show further exemplary embodiments of the present solution, in which the connecting piece 13 is tapered in one direction.
  • the connecting piece 13 tapers in a direction essentially antiparallel to the direction of movement of the drive, here negative spatial direction z, hereinafter the taper direction.
  • the connecting tabs 11, 12 are essentially shaped so that the connecting piece 13 fits precisely into the gap 26 between them.
  • FIG. 9 a, b A substantially conical design of the connecting piece 13 is shown, in which the cross section of the connecting piece 13 decreases substantially continuously along the taper direction. Due to the taper, separation from the connecting tabs 11, 12 is achieved even after small movement distances of the connecting piece 13 and no frictional resistance between connecting tabs 11, 12 and connecting piece 13 has to be overcome over long displacement distances. In particular, it is possible to dimension the cavity 24 and the insulators 16 so that the freedom of movement of the connecting piece 13 is restricted in the open position and it cannot tilt in the direction of the connecting tabs 11, 12.
  • the cross-sectional area of the connecting piece 13 does not have to fall uniformly per length in the taper direction. So shows Fig. 9c, d a design of the connecting piece 13 of the solution in question in which the cross section is at least almost in sections is constant along the taper direction and then reduces again at least almost suddenly. It is advantageous if the cross-sectional area tapers monotonically, i.e. does not essentially increase with the direction of taper. Sections with a substantially constant cross-sectional area are possible.
  • Fig. 9e, f show a further exemplary embodiment in which the cross section of the connecting piece 13 is essentially semicircular in the spatial direction y.
  • the connector 13 may be formed as a half cylinder, a hemisphere, or a similar shape with a semicircular cross section. Again the cross section falls monotonically in the taper direction, although not continuously.
  • the round cross-sectional shape ensures that the connecting piece does not come into contact with one of the two connecting tabs, even when rotated about the spatial direction y.
  • Fig. 10a-d show exemplary embodiments of the surfaces of connecting piece 13 and/or connecting tabs 11, 12. Since the electrical contact resistance between connecting tabs 11, 12 and connecting piece 13 decreases as the contact area increases, it can be advantageous to use the contact surfaces 21a, 22a (consequently also contact surfaces 21b, 22b). not to keep it smooth, but to structure it in a targeted manner.
  • Fig. 10d the at least partial coating of at least one of the contact surfaces 21a, 22a (consequently also contact surfaces 21b, 22b) of connecting piece 13 and/or connecting tabs 11, 12.
  • the coating is made of a softer material than at least one of the connecting tabs 11, 12 and/or or the connecting piece 13.
  • a physical safety device 1 with several safety conductors, each comprising two connection tabs 11, 12 and a connecting piece 13.
  • the safety conductors can be located in a common chamber of the housing, see insulation conductors of the connection tab pairs 11b-12b and 11c-12c in Fig. 11b .
  • All or a subset of the fuse conductors can also be separated from one another by additional housing walls running between the fuse conductors, see the separated pair of connection tabs 11a-12a in Fig. 11b .
  • the connecting pieces 13 of the respective fuse conductors can be released together by a single drive 17 from the respective gaps 26 between the respective connection tabs 11, 12. It is also possible for the connecting pieces 13 of the fuse conductors to be detached from the connecting tabs 11, 12 by a different drive 17. Subsets of the fuse conductors can also be separated from individual drives 17 and/or subsets can be driven together by a common drive 17.
  • the separation of the housing 10 into several chambers in which one or more of the fuse conductors are located, as in Fig. 11c shown has the advantage that a Separation process in a first chamber does not affect the contents of another chamber. For example, the distribution of waste products that arise during separation, such as dust, soot, splinters or the like from already separated fuse conductors into the area of other fuse conductors that may still need to be separated, can be prevented.
  • venting means 25 in this area of the housing 10.
  • a valve, hole, breakable seal, or similar device is shown, through which gas can escape into the cavity 24 when the safety device 1 is triggered and the connecting piece 13 moves.
  • the venting means may be located on the top wall of the housing 10 as shown in Fig. 12 shown, but also on side surfaces or other surfaces.
  • Fig. 13a-d show exemplary embodiments of the insulators 16 of the safety device 1 in question.
  • the insulator 16 as in Fig. 13a shown flush with the contact surface 21a, 22a of the connecting tab 11, 12. It can also protrude beyond the contact surface 21a, 22a towards the middle of the gap, as in Fig. 13b shown.
  • Fig. 13b Various designs of insulators 16 projecting beyond the contact surface 21a, 22a are shown, at the top an insulator with a constant cross section and below two pointed designs.
  • Fig. 13b offers less resistance when removing the connecting piece 13 from the gap 26 than the upper design, in which the area moment of inertia of the insulator is higher due to the unchanged cross section.
  • Fig. 13c shows the process of deformation of an insulator projecting beyond the contact surface 21a, 22a of the connecting tab 11, 12 when the connecting piece 13 is separated from the connecting tabs 11, 12.
  • the connecting piece 13 causes a bending of the Insulator 16 as it moves out of the gap 26. As soon as it has passed the insulator 16, it moves back to the original position, driven by its elasticity, and prevents the connecting piece 13 from sliding back into the gap 26, together with the expansion of the connecting piece 13. If the insulator 16 protrudes into the gap 26, it is impossible for the connecting piece 13 to slip back into the gap 26 even without it expanding.
  • the insulator 16 can be used in particular in the exemplary embodiments Fig. 13 b be formed from an elastic non-conductive materials such as plastic, rubber, silicone. In Fig. 13a In addition to these materials, a solid such as glass, ceramic, coated metal, or similar can also be used.
  • Fig. 13d discloses a mechanical snap element that looks like the elastic insulator 16 Fig. 13c is displaced and opened when the connecting piece 13 moves. After the connecting piece 13 has left the gap 26 and left the insulator 16 behind it, it snaps back into the starting position driven by its mechanical mechanism and blocks the return path of the connecting piece. 13
  • the snap element can be formed from elastic, non-conductive materials such as plastic, rubber, silicone, etc., but also from non-conductive solids such as glass, ceramic, coated metal, or similar. The elasticity is achieved by a spring mechanism.

Landscapes

  • Fuses (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connection Or Junction Boxes (AREA)

Claims (15)

  1. Dispositif de sécurité électrique (1), en particulier pour un véhicule automobile comprenant;
    - un boîtier (10),
    - une première patte de connexion (11) insérée dans le boîtier (10),
    - une deuxième patte de connexion (12) insérée dans le boîtier (10), où les pattes de connexion (11, 12) sont écartées l'une de l'autre dans le boîtier par une fente (26), où la fente (26) s'étend entre deux faces frontales orientées l'une vers l'autre, respectivement à l'extrémité de l'une des deux pattes de connexion (11, 12), caractérisé par,
    - une pièce de connexion (13) reliant électriquement le première et le deuxième patte de connexion (11, 12) dans le boîtier dans une position fermée,
    où la pièce de connexion (13) est en contact mécanique avec les deux pattes de connexion (11, 12) respectivement sur une surface de contact (21b, 22b, 21a, 22a),
    où les surfaces frontales forment respectivement au moins partiellement l'une des surfaces de contact (21b, 22b, 21a, 22a),
    - un entraînement (17) disposé dans le boîtier (10), déplaçant la pièce de connexion (13) de la position fermée à une position ouverte, où, dans la position ouverte, les deux pattes de connexion (11, 12) sont électriquement séparées l'une de l'autre,
    où
    la pièce de connexion (13) est disposée dans la fente (26) entre les deux pattes de connexion (11, 12) et est pressée en ajustement serrée entre la première et la deuxième patte de connexion (11, 12).
  2. Dispositif de sécurité (1) selon la revendication 1,
    caractérisé en ce
    que le dispositif d'entraînement (17) est un élément pyrotechnique, en particulier une amorce.
  3. Dispositif de sécurité (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    que la fente (26) a une section constante le long d'une direction spatiale ou que la fente (26) a une section qui se rétrécit le long d'une direction spatiale, qu'en particulier le long d'une direction spatiale, la surface de la section de la fente (26) est décroissante de manière monotone.
  4. Dispositif de sécurité (1) selon l'une des revendications précédentes, caractérisé en ce,
    que des moyens de fixation (20a, 20b) sont prévus sur le boîtier (10) et/ou sur les pattes de connexion (11, 12) pour fixer les pattes de connexion (11, 12) de fixation.
  5. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'au moins une des surfaces de contact (21b, 22b, 21a, 22a) entre une des pattes de connexion (11, 12) et la pièce de connexion (13) est supérieure à une surface de section d'une des pattes de connexion (11, 12), en particulier qu'au moins une des surfaces de contact (21b, 22b, 21a, 22a) est une surface s'étendant dans la direction longitudinale de la patte de connexion (11, 12), en particulier une surface large s'étendant dans la direction longitudinale de la patte de connexion (11, 12).
  6. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce,
    qu'au moins une des pattes de connexion (11, 12) et/ou la pièce de connexion (13) est revêtue de métal, en particulier étamé, au moins dans la zone d'au moins l'une des surfaces de contact (21b, 22b, 21a, 22a) et/ou
    que le revêtement métallique est formé d'un matériau plus mou que le reste de la patte de connexion (11, 12), en particulier a une dureté Rockwell plus faible, et par conséquent une déformation plastique, en particulier un engrènement, des deux surfaces de contact (21b, 22b, 21a, 22a) quand au moins une des pattes de connexion (11, 12) est pressée à la pièce de connexion (13).
  7. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce,
    qu'au moins une des pattes de connexion (11, 12) et/ou le pièce de connexion (13) est formée d'un matériau plein électriquement conducteur, en particulier d'un matériau métallique, en particulier de cuivre ou d'un alliage de cuivre ou d'aluminium ou d'un alliage d'aluminium et/ou qu'au moins une des pattes de connexion (11, 12) et/ou la pièce de connexion (13) est formée au moins partiellement comme un élément plat, en particulier de tôle, en particulier un élément en H et/ou
    que la pièce de connexion (13) comprend un premier élément conducteur (15) en un matériau électriquement conducteur et un deuxième élément de support (14) en un deuxième matériau, où le premier élément conducteur (15) est relié, dans la position fermée, aux deux pattes de connexion (11,12) et le premier (15) et le deuxième élément conducteur (14) sont disposés en ajustement serré entre les deux pattes de connexion (11, 12) et/ou
    que l'élément conducteur (15) comprend un élément plat qui entoure l'élément de support (14) en forme de U ou de pot ou que l'élément conducteur (15) comprend plusieurs éléments plats qui, dans la zone des surfaces de contact (21b, 22b, 21a, 22a), sont montées sur l'élément de support (14) et un autre élément conducteur qui établit une liaison électrique entre les éléments plats, ou que l'élément conducteur (15) est un élément en H dont les deux surfaces extérieures sont les surfaces de contact (21b, 22b, 21a, 22a) et l'entretoise centrale relie les surfaces extérieures et les espaces intermédiaires sont facultativement remplis par l'élément de support (14).
  8. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que la pièce de connexion (13), en position ouverte, est plus longue dans la direction d'extension de la fente que la largeur de la fente (26) dans cette direction.
  9. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que, dans le boîtier (10), sur au moins l'une des pattes de raccordement (11, 12), sur le côté opposé à l'entraînement (17), au moins un isolateur (16a, 16b) en matériau non conducteur de l'électricité, qui affleure la surface de contact (21b, 22b, 21a, 22a) et/ou qui dépasse la surface de contact (21b, 22b, 21a, 22a) vers le milieu de la fente et/ou
    que l'isolateur (16a, 16b) est formé d'un matériau élastique, en particulier de matière plastique, et/ou est formé comme éléments encliquetables et/ou que l'isolateur (16a, 16b) fait partie d'une isolation de conducteur et/ou que le l'isolateur (16a, 16b) fait partie du boîtier (10), en particulier des saillies sur les parois intérieures du boîtier (10).
  10. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'un espace creux du boîtier (10) dans lequel la pièce de connexion (13) est introduite par l'entraînement (17), enferme la pièce de connexion (17) au moins dans une direction spatiale et/ou
    que la pièce de connexion (13) se déplace le long d'un guide, en particulier le long de rails disposés sur la paroi intérieure du boîtier et/ou le long de rails traversant la pièce de connexion (13) et/ou le long des surfaces de contact (21b, 22b, 21a, 22a) des pattes de connexion (11, 12).
  11. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que plusieurs paires de pattes de connexion (11, 12) sont disposées dans le boîtier (10), respectivement avec une pièce de connexion (13), et au moins un groupe de pièces de connexion (13) est entraîné par un seul entraînement (17) d'une position fermée respective à une position ouverte respective et/ou qu'une pièce de connexion (13) est entraînée individuellement par un entraînement respective (17) d'une position fermée respective à une position ouverte respective.
  12. Dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que des moyens de purge sont prévus dans le boîtier (10), par lesquels un gaz se trouvant dans le boîtier (10) s'échappe lors du déclenchement de l'entraînement (17) et/ou des joints sont prévus entre la pièce de connexion (13) et/ou les pattes de connexion (11, 12) et la paroi intérieure du boîtier.
  13. Procédé de fabrication d'un dispositif de sécurité (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que les pattes de connexion (11, 12) sont pressées mécaniquement à la pièce de connexion (13) et sont ensuite montés avec l'entraînement (17) dans un boîtier (10) et/ou que les pattes de connexion (11, 12) et la pièce de connexion (13) sont d'abord introduites dans le boîtier (10) et sont ensuite pressées avec la pièce de connexion (13).
  14. Procédé de fabrication d'un dispositif de sécurité (1) selon la revendication 13, où la patte de connexion (11, 12) est pressée avec la pièce de connexion (13) par un procédé de compression hydraulique, hydrostatique, pneumatique et/ou motorisé.
  15. Procédé d'utilisation d'un dispositif de sécurité (1) selon l'une des revendications 1 à 12,
    caractérisé en ce
    que la pièce de connexion (13) est déplacée de la position fermée à la position ouverte par l'entraînement (17), de sorte que la connexion électrique des pattes de connexion (11, 12) entre elles est interrompue.
EP21713904.7A 2020-04-30 2021-03-17 Dispositif fusible electrique, procede de fabrication d'un dispositif fusible et procede de fonctionnement d'un dispositif fusible electrique Active EP4143864B1 (fr)

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DE102020111765.5A DE102020111765B4 (de) 2020-04-30 2020-04-30 Elektrische Sicherungsvorrichtung, Verfahren zur Herstellung einer Sicherungsvorrichtung und ein Verfahren zum Betrieb einer elektrischen Sicherungsvorrichtung
PCT/EP2021/056781 WO2021219286A1 (fr) 2020-04-30 2021-03-17 Dispositif de protection électrique, procédé de fabrication d'un dispositif de protection et un procédé de fonctionnement d'un dispositif de protection électrique

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EP4143864B1 true EP4143864B1 (fr) 2024-01-03

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US (1) US11875960B2 (fr)
EP (1) EP4143864B1 (fr)
CN (1) CN115552560A (fr)
DE (1) DE102020111765B4 (fr)
ES (1) ES2976160T3 (fr)
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WO (1) WO2021219286A1 (fr)

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US20230120705A1 (en) 2023-04-20
ES2976160T3 (es) 2024-07-24
WO2021219286A1 (fr) 2021-11-04
EP4143864A1 (fr) 2023-03-08
US20230290595A9 (en) 2023-09-14
MX2022013488A (es) 2022-11-16
CN115552560A (zh) 2022-12-30
DE102020111765B4 (de) 2023-09-07
US11875960B2 (en) 2024-01-16

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