EP2996132A1 - Arrangement fusible a multiple borne - Google Patents

Arrangement fusible a multiple borne Download PDF

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Publication number
EP2996132A1
EP2996132A1 EP14184151.0A EP14184151A EP2996132A1 EP 2996132 A1 EP2996132 A1 EP 2996132A1 EP 14184151 A EP14184151 A EP 14184151A EP 2996132 A1 EP2996132 A1 EP 2996132A1
Authority
EP
European Patent Office
Prior art keywords
fuse
connecting arm
pyrotechnic
multiple fuse
primary connecting
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.)
Withdrawn
Application number
EP14184151.0A
Other languages
German (de)
English (en)
Inventor
Martin Burger
Peter Steiner
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.)
Leoni Bordnetz Systeme GmbH
Original Assignee
Leoni Bordnetz Systeme GmbH
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 Leoni Bordnetz Systeme GmbH filed Critical Leoni Bordnetz Systeme GmbH
Priority to EP14184151.0A priority Critical patent/EP2996132A1/fr
Priority to EP15775388.0A priority patent/EP3192093B1/fr
Priority to PCT/EP2015/070522 priority patent/WO2016038051A1/fr
Publication of EP2996132A1 publication Critical patent/EP2996132A1/fr
Withdrawn legal-status Critical Current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
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H01H2085/0555—Input terminal connected to a plurality of output terminals, e.g. multielectrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified

Definitions

  • the invention relates to a multiple fuse for the automotive sector comprising a plurality of fuse elements and a power distribution plate with a plurality of conductor strips, wherein one of these conductor strips are formed as a primary connecting arm and at least one further conductor strip as a secondary connecting arm.
  • fuses are used, with the help of individual current paths or circuits are protected against overcurrents.
  • fuse arrangements with a plurality of fuses, called multiple fuses are used, these being designed to protect a plurality of current paths having a common starting point or connection node.
  • Such a fuse arrangement is for example from the DE 20 2000 002 952 U1 refer to.
  • the present invention seeks to provide an advantageous embodiment of a multiple backup.
  • the multiple fuse is designed for the automotive sector and includes a plurality of fuse elements and a power distribution plate, hereinafter also referred to as a distributor plate, with a plurality of conductor strips.
  • a power distribution plate hereinafter also referred to as a distributor plate
  • one of these conductor strips is designed as a primary connecting arm and another, preferably at least two further conductor strips are designed as secondary connecting arms.
  • a pyrotechnic securing element is positioned in the region of the primary connecting arm and accordingly one of the securing elements of the multiple fuse is not designed to protect a current path against overcurrents.
  • the pyrotechnic fuse element also known as pyrotechnic safety switch, pyrotechnic switch or pyrotechnic separator, is a type of emergency stop switch of stop category 0 (EN ISO 13850: 2008 point 4.1.4 and EN 60204-1: 2006 point 9.2 .2), which can be triggered manually and / or automatically controlled and triggered under predetermined conditions.
  • the pyrotechnic fuse element which, if used in a motor vehicle, has hitherto been installed as part of a separate module in the immediate vicinity of the battery in the motor vehicle is integrated according to the solution proposed here in the multiple fuse and thus integrated part of this multiple fuse.
  • the pyrotechnic securing element is arranged on one arm, the primary connecting arm, of the one-piece distributor plate and interrupts it in the event of triggering.
  • two assemblies are replaced by a structural unit, which can save among other components and / or material.
  • the production costs and the manufacturing costs are reduced and, moreover, the combination of the assemblies simplifies installation in a motor vehicle.
  • the pyrotechnic fuse element is in the installed state signal technically connected to the same sensors as an airbag control unit in the motor vehicle, so that in the case of triggering of an airbag in the motor vehicle always the pyrotechnic fuse element is triggered.
  • the triggering of the pyrotechnic fuse element thus takes place in particular in the event of a traffic accident and this measure contributes to the fact that the electrical energy sources of the motor vehicle are virtually isolated after a traffic accident and separated from the rest of the motor vehicle electrical system. This prevents accidents caused exposed and / or damaged electrical cable connections or exposed and / or damaged electronic components pose a risk, especially for rescue workers, so ignite, for example, leaking oil or gasoline.
  • the pyrotechnic fuse element is constructed according to a known principle. It comprises a pyrotechnic propellant charge, which is ignited by an electrical ignition signal, in particular a sensor signal of a connected sensor, and consequently a separating body, usually a wedge or a bolt, accelerated, so that this mechanically cuts the conductor strip formed as a primary connecting arm, whereby the electric Connection, for example, between an electrical energy source, typically a battery, and connected to the primary connecting arm current paths, is interrupted. Due to this principle of operation, such a pyrotechnic fuse element is sometimes referred to as a battery disconnect switch.
  • the primary connecting arm is in this case part of a feed-current path and designed as a feed arm, so that in the installed state of the multiple fuse at least temporarily electrical power from an electrical energy source via the feed arm fed and preferably distributed to the secondary terminal arms and the secondary terminal arms , which are designed in this case as Abgangsarme, is discharged into connected consumer current paths. Accordingly, then all consumer current paths that are connected to the multiple fuse or emanating from this, cut off by triggering the pyrotechnic fuse element from the power supply, ie in particular separated from a battery of a motor vehicle, in which the multiple fuse is installed.
  • the primary connecting arm is designed as a departure arm and in particular for high currents, based on the typical currents in an electrical system of a motor vehicle, designed, typically for currents greater than 10A.
  • the primary connecting arm is then in the installed state preferably part of a current path to a starter-generator unit of a motor vehicle or part of a current path to high-voltage components of an electric or hybrid vehicle.
  • high-voltage components are, for example, an electric traction motor, a high-voltage battery and / or other power components for electric driving.
  • the primary connecting arm at the intended attack position of the pyrotechnic securing element has a predetermined breaking point, due to which the mechanical force to be applied is reduced for the division of the primary connecting arm.
  • an adapted pyrotechnic fuse element is used, which has, for example, a smaller or weaker pyrotechnic propellant.
  • a corresponding predetermined breaking point is e.g. by a material reduction, such as a groove, or by at least one breakthrough, such as a slot implemented.
  • the distributor plate is also preferably kept very simple in terms of its design and in particular its shape and preferably has an example comb-like structure with a transverse region and perpendicularly extending from this connecting arm.
  • the one-piece and integrally formed distributor plate on a uniform sheet thickness or plate thickness. Furthermore, the conductor strips formed as connecting arms, a connection element, such as a tab or an opening, which for mechanical and electrical connection, for. a power supply or an outgoing supply cable is formed.
  • the power distribution plate is formed as a stamped sheet metal or stamped sheet, since this can be produced in this case particularly simple and inexpensive.
  • the pyrotechnic securing element is advantageously a prefabricated unit, which is preferably designed such that it is attached as a unit to the primary connecting arm.
  • the assembly is preferably placed over the primary connecting arm, for example, plugged onto the primary connecting arm, pushed onto the primary connecting arm or the unit is formed in two or more parts and is fastened by, for example, latching assembly of the (housing) parts.
  • the pyrotechnic Securing element therefore has a slot-shaped opening through which the primary connecting arm is performed.
  • the pyrotechnic fuse element is produced in a separate production sub-process and brought together in a simple assembly process with a sub-assembly containing the other elements of the multiple backup and is also manufactured in a separate manufacturing process, so that the multiple backup is completed.
  • a securing element is conveniently positioned in the respective region of each secondary connecting arm, so that each secondary connecting arm is part of a current path separately protected by a securing element.
  • the fuse elements in the respective regions of the secondary connecting arms for securing the corresponding current paths against overcurrents are formed and accordingly, a multiple fuse presented here has two types of fuse elements, which differ fundamentally not only by the triggering condition, but also in terms of the operating principle.
  • the fuse elements positioned in the region of the secondary connection arms are further preferably designed as fuses and are usually designed for rated currents in the range 3A to 300A, in particular in the range 3A to 100A.
  • those fuses are integrated into the secondary connecting arms, wherein the corresponding secondary connecting arms are suitable for this purpose, for example, formed by choice of material or shape. In this case, so then form the configured as a secondary terminal arms conductor strip itself fuse areas.
  • FIG. 1 An example described below and in Fig. 1 illustrated multiple fuse 2 is designed for a non-illustrated motor vehicle electrical system of a motor vehicle and serves to hedge several current paths that have a common starting point or connection node, here designed as a breakthrough circular cross-section feed terminal 3, have.
  • a power distribution plate 4 hereinafter also referred to as distributor plate 4, which has a plurality of conductor strips 6, wherein a conductor strip 6 is formed as a primary connecting arm 8 and wherein three parallel thereto extending conductor strips 6 are formed as secondary connecting arms 10.
  • the conductor strips 6 configured as connecting arms 8, 10 are further connected to one another via a transverse connecting strip 12, which has the feed connection 3. Accordingly, in the installed state of the multiple fuse 2 at least temporarily electrical power is fed via the feed terminal 3 and subsequently on the transverse connecting strip 12, the primary connecting arm 8 on the one hand and the secondary connecting arms 10 on the other hand electrically conductively connected to the feed terminal 3, on the connecting arms. 8 , 10 split.
  • the electrical power is then dissipated via the connecting arms 8, 10 into four current paths, each connecting arm 8, 10 being part of one of these current paths.
  • the power distribution plate 4 is in this case formed as a one-piece and one-piece stamped sheet metal made of copper and accordingly, the conductor strips 6 are not components but partial forms of the power distribution plate 4.
  • each secondary connecting arm 10 is integrated into the respective secondary connecting arm 10.
  • the fuses 16 are also designed for different tripping conditions and thus for different rated currents.
  • the multiple fuse 2 has a pyrotechnic securing element 18, which is positioned in the region of the primary connecting arm 8. This does not function as a fuse element to protect against overcurrents but as a kind of emergency stop.
  • the primary connecting arm 8 is severed by means of the pyrotechnic securing element 18 when triggered, so that the subsequent current path from the supply terminal 3 and thus from the electrical energy source which at least temporarily feeds electrical power via the feed terminal 3 is disconnected.
  • the pyrotechnic fuse element 18 is in this case constructed in a conventional manner and comprises in a manner not shown a pyrotechnic propellant and a separating wedge, which is driven by an ignition of the pyrotechnic propellant to the primary connecting arm 8 and the primary connecting arm 8 severed.
  • the ignition of the pyrotechnic propellant is carried out by an electrical sensor signal, which is fed via a signal input 20 on the pyrotechnic fuse element 18.
  • the signal input 20 signal-technically connected to a non-illustrated airbag control unit or with an airbag sensor, so that in the event of an accident that leads to the triggering of the corresponding airbag, the pyrotechnic fuse element 18 is triggered and the pyrotechnic propellant is ignited.
  • the individual functional elements of the pyrotechnic securing element 18 are enclosed in an insulating housing.
  • the primary connecting arm 8 also has a predetermined breaking point 22, which is formed for example by three slot-shaped openings in the primary connecting arm 8.
  • the corresponding breakthroughs are in Fig. 1 indicated by dashed lines.
  • the pyrotechnic securing element 18 is pushed as a prefabricated unit in an assembly process step.
  • An alternative embodiment of the predetermined breaking point 22 is in Fig. 2 also shown by dashed lines.
  • a plurality of openings arranged along a line with a round cross-section form the predetermined breaking point 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fuses (AREA)
EP14184151.0A 2014-09-09 2014-09-09 Arrangement fusible a multiple borne Withdrawn EP2996132A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14184151.0A EP2996132A1 (fr) 2014-09-09 2014-09-09 Arrangement fusible a multiple borne
EP15775388.0A EP3192093B1 (fr) 2014-09-09 2015-09-08 Arrangement fusible a multiple borne
PCT/EP2015/070522 WO2016038051A1 (fr) 2014-09-09 2015-09-08 Coupe-circuit multiple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14184151.0A EP2996132A1 (fr) 2014-09-09 2014-09-09 Arrangement fusible a multiple borne

Publications (1)

Publication Number Publication Date
EP2996132A1 true EP2996132A1 (fr) 2016-03-16

Family

ID=51518613

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14184151.0A Withdrawn EP2996132A1 (fr) 2014-09-09 2014-09-09 Arrangement fusible a multiple borne
EP15775388.0A Active EP3192093B1 (fr) 2014-09-09 2015-09-08 Arrangement fusible a multiple borne

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15775388.0A Active EP3192093B1 (fr) 2014-09-09 2015-09-08 Arrangement fusible a multiple borne

Country Status (2)

Country Link
EP (2) EP2996132A1 (fr)
WO (1) WO2016038051A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3088592A1 (fr) * 2018-11-15 2020-05-22 Livbag Sas Dispositif de securite pour circuit-electrique de vehicule
DE102022113713A1 (de) 2022-05-31 2023-11-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Spannungswandlereinrichtung für ein Hochvoltsystem eines Kraftfahrzeugs

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19749896A1 (de) * 1997-11-12 1999-06-02 Knipping Kunststofftechnik Wer Pyrotechnischer Sicherheitsschalter
FR2775539A1 (fr) * 1998-02-27 1999-09-03 Renault Dispositif disjoncteur pour vehicule automobile
DE102006046347A1 (de) * 2006-09-28 2008-04-03 Auto Kabel Managementgesellschaft Mbh Elektrische Sicherungsvorrichtung
DE102006054915A1 (de) * 2006-11-22 2008-05-29 Volkswagen Ag Einrichtung zur Stromverteilung
DE102007051504A1 (de) * 2007-10-27 2009-04-30 Daimler Ag Sicherheitseinrichtung
DE202009002852U1 (de) 2009-02-27 2009-06-18 Leoni Bordnetz-Systeme Gmbh Sicherungsanordnung
DE202011102353U1 (de) * 2011-06-25 2011-09-15 Leoni Bordnetz-Systeme Gmbh Sicherungsanordnung insbesondere für ein Kraftfahrzeug-Bordnetz
US20140083825A1 (en) * 2012-09-26 2014-03-27 Toyoda Gosei Co., Ltd. Electric circuit breaking device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19749896A1 (de) * 1997-11-12 1999-06-02 Knipping Kunststofftechnik Wer Pyrotechnischer Sicherheitsschalter
FR2775539A1 (fr) * 1998-02-27 1999-09-03 Renault Dispositif disjoncteur pour vehicule automobile
DE102006046347A1 (de) * 2006-09-28 2008-04-03 Auto Kabel Managementgesellschaft Mbh Elektrische Sicherungsvorrichtung
DE102006054915A1 (de) * 2006-11-22 2008-05-29 Volkswagen Ag Einrichtung zur Stromverteilung
DE102007051504A1 (de) * 2007-10-27 2009-04-30 Daimler Ag Sicherheitseinrichtung
DE202009002852U1 (de) 2009-02-27 2009-06-18 Leoni Bordnetz-Systeme Gmbh Sicherungsanordnung
DE202011102353U1 (de) * 2011-06-25 2011-09-15 Leoni Bordnetz-Systeme Gmbh Sicherungsanordnung insbesondere für ein Kraftfahrzeug-Bordnetz
US20140083825A1 (en) * 2012-09-26 2014-03-27 Toyoda Gosei Co., Ltd. Electric circuit breaking device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3088592A1 (fr) * 2018-11-15 2020-05-22 Livbag Sas Dispositif de securite pour circuit-electrique de vehicule
WO2020099474A1 (fr) * 2018-11-15 2020-05-22 Autoliv Development Ab Dispositif de securite pour circuit-electrique de vehicule
DE102022113713A1 (de) 2022-05-31 2023-11-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Spannungswandlereinrichtung für ein Hochvoltsystem eines Kraftfahrzeugs

Also Published As

Publication number Publication date
WO2016038051A1 (fr) 2016-03-17
EP3192093B1 (fr) 2023-05-03
EP3192093A1 (fr) 2017-07-19

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