EP2545575B1 - Fuse for a motor vehicle power line - Google Patents
Fuse for a motor vehicle power line Download PDFInfo
- Publication number
- EP2545575B1 EP2545575B1 EP11701968.7A EP11701968A EP2545575B1 EP 2545575 B1 EP2545575 B1 EP 2545575B1 EP 11701968 A EP11701968 A EP 11701968A EP 2545575 B1 EP2545575 B1 EP 2545575B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- gap
- fuse according
- flaps
- connection flaps
- 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.)
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- 239000000463 material Substances 0.000 claims description 19
- 238000010304 firing Methods 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 238000009713 electroplating Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 10
- 230000001960 triggered effect Effects 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 3
- 239000003380 propellant Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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
- 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
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- Fuses (AREA)
- Air Bags (AREA)
Description
Der Gegenstand betrifft einen Stromunterbrecher für Kraftfahrzeugenergieleitungen, insbesondere mit einem mit Anschlusslaschen gebildeten Verbindungsteil, welches pyrotechnisch auftrennbar ist.The subject matter relates to a circuit breaker for motor vehicle power lines, in particular with a connecting part formed with connecting straps, which can be separated pyrotechnically.
Pyrotechnische Sicherungen sind in der Kraftfahrzeugtechnik hinlänglich bekannt. Insbesondere aus der europäischen Patentanmeldung
Aus der deutschen Gebrauchsmusterschrift
Aus der
Das Dokument
Alle oben beschriebenen elektrischen Sicherheitsschalter sind konstruktiv aufwendig herzustellen. Außerdem ist der Materialeinsatz hoch, so dass die Kosten eines solchen Sicherheitsschalters hoch sind.All electrical safety switches described above are structurally complicated to produce. In addition, the use of materials is high, so that the cost of such a safety switch are high.
Aus diesem Grunde lag dem Gegenstand die Aufgabe zugrunde, einen Stromunterbrecher für Kraftfahrzeugenergieleitungen zur Verfügung zu stellen, welcher konstruktiv einfach in der Herstellung und mit geringem Materialaufwand realisierbar ist.For this reason, the object of the object was to provide a circuit breaker for motor vehicle power lines available, which is structurally simple to manufacture and low material cost feasible.
Diese Aufgabe wird gegenständlich durch einen Stromunterbrecher für Kraftfahrzeugenergieleitungen gemäß Anspruch 1 gelöst.This object is achieved objectively by a circuit breaker for motor vehicle power lines according to claim 1.
Es ist erkannt worden, dass durch die Verwendung von vorzugsweise flachen Anschlusslaschen eine besonders kostengünstige Herstellung eines Sicherheitsschalters möglich ist. Zwischen den Anschlusslaschen muss lediglich ein Verbindungsteil angeordnet sein, welches dazu ausgelegt ist, beim Auslösen des pyrotechnischen Zünders zu bersten. Hierzu ist in dem Verbindungsteil eine Sollbruchstelle vorgesehen oder die Sollbruchstelle durch das Verbindungsteil gebildet, wobei die Sollbruchstelle durch den Gasdruck des pyrotechnischen Zünders birst. Um den Gasdruck hoch zu halten, verschließen die Anschlusslaschen selbst das Gehäuse, in dem der pyrotechnische Zünder angeordnet ist. Das heißt, dass die Anschlusslaschen zwei Funktionen erfüllen. Zum Einen sind die Anschlusslaschen dazu ausgelegt, einen elektrischen Pfad zu bilden, der im Auslösefall unterbrochen wird. Zum Anderen dienen die Anschlusslaschen unmittelbar zur Abdichtung des Gehäuses, so dass der pyrotechnische Zünder einen ausreichend hohen Gasdruck auf die Anschlusslaschen bzw. das Verbindungsteil im Auslösefall auslösen kann.It has been recognized that a particularly cost-effective production of a safety switch is possible by the use of preferably flat terminal straps. Between the connecting straps, only one connecting part has to be arranged, which is designed to burst when the pyrotechnic igniter is triggered. For this purpose, a predetermined breaking point is provided in the connecting part or the predetermined breaking point formed by the connecting part, wherein the predetermined breaking point bursts by the gas pressure of the pyrotechnic igniter. To keep the gas pressure high, the terminal latches themselves close the housing in which the pyrotechnic igniter is located. This means that the connection lugs fulfill two functions. On the one hand, the connection lugs are designed to form an electrical path, which is interrupted when triggered. On the other hand, the connecting straps serve directly to seal the housing, so that the pyrotechnic igniter can trigger a sufficiently high gas pressure on the connecting lugs or the connecting part in the event of triggering.
Gemäß einem vorteilhaften Ausführungsbeispiel wird vorgeschlagen, dass das Verbindungsteil aus einem Lotmaterial gebildet ist. In diesem Fall müssen die Anschlusslaschen lediglich miteinander verlötet werden. Dies kann beispielsweise im Rahmen eines kontinuierlichen Lötens erfolgen. Beispielsweise können die Anschlusslaschen gestanzt werden und unmittelbar im Anschluss daran durch einen Lötofen geführt werden, in dem das Lotmaterial, gemäß der Erfindung, in den zwischen die Anschlusslaschen gebildeten Spalt fließt und diesen Spalt verschließt und somit gleichzeitig einen elektrischen Pfad zwischen den Anschlusslaschen bildet und die Anschlusslaschen mechanisch miteinander verbindet.According to an advantageous embodiment, it is proposed that the connecting part is formed from a solder material. In this case, the connection tabs need only be soldered together. This can be done, for example, in the context of a continuous soldering. For example, the terminal lugs can be stamped and immediately thereafter passed through a solder oven, in which the solder material, according to the invention, flows in the gap formed between the terminal lugs and closes this gap and thus simultaneously forms an electrical path between the terminal lugs and the Connecting connecting plates mechanically together.
Gemäß der Erfindung wird daher vorgeschlagen, dass das Verbindungsteil in einem zwischen den Anschlusslaschen gebildeten Spalt angeordnet ist. Der Spalt bildet sich insbesondere beim Herstellen der Anschlusslaschen, beispielsweise beim Stanzen dieser. Beim Stanzen kann ein Spalt gebildet werden, der eine Breite von 1mm oder kleiner hat.According to the invention it is therefore proposed that the connecting part is arranged in a gap formed between the terminal lugs. The gap is formed in particular during the production of the connection tabs, for example when punching them. When punching a gap can be formed, which has a width of 1mm or smaller.
Auch wird vorgeschlagen, dass während des Stanzens Verbindungsstege, bevorzugt beidseitig des Spalts, zwischen den Anschlusslaschen bestehen bleiben. Die Verbindungsstege können beispielsweise beim Stanzen derart geformt sein, dass sie aus der zwischen den Anschlusslaschen aufgespannten Fläche herausragt. Diese Verbindungsstege können zunächst dazu genutzt werden, die Anschlusslaschen einstückig zu belassen. Auch können die Verbindungsstege parallel zueinander, entlang der äußeren Umfangslinie der Anschlusslaschen, verlaufen, ohne aus der zwischen den Anschlusslaschen aufgespannte Fläche herauszuragen. Dann kann durch geeignete Führung der Stanzwerkzeuge kann der Spalt verkleinert werden, in dem die Anschlusslaschen aufeinander zu gedrückt werden und die Verbindungsstege somit elastisch verformt werden. Hierbei werden die Verbindungsstege darüber hinaus aus der zwischen den Anschlusslaschen aufgespannten Fläche gedrückt, so dass die von den Anschlusslaschen hervorstehen. Die Stege führen dazu, dass der Spalt in der vorgesehenen Größe erhalten bleibt und sich die Anschlusslaschen nicht mehr voneinander entfernen. Nachdem der Spalt geschlossen wurde, z.B. galvanisch oder mittels Löten, können die Anschlusslaschen entfernt wurden, z.B. durch Fräsen.It is also proposed that during the punching connecting webs, preferably on both sides of the gap, remain between the terminal lugs. The connecting webs may be formed, for example, during stamping in such a way that it protrudes from the surface spanned between the terminal straps. These connecting webs can first be used to leave the connecting lugs in one piece. Also, the connecting webs may be parallel to each other, along the outer peripheral line of the terminal lugs, without protruding from the surface spanned between the terminal lugs. Then, by suitable guidance of the punching tools, the gap can be reduced, in which the connecting straps are pressed towards each other and the connecting webs are thus elastically deformed. In this case, the connecting webs are also pressed out of the area spanned between the connecting tabs so that they protrude from the connecting tabs. The webs cause the gap remains in the intended size and the connecting straps are no longer separated. After the gap has been closed, eg galvanically or by means of soldering, the connecting lugs can be removed, eg by milling.
Gemäß einem vorteilhaften Ausführungsbeispiel wird vorgeschlagen, dass der Spalt quer zur Ausdehnungsrichtung der Anschlusslaschen verläuft. In diesem Fall ist die notwendige Kraft, die Sollbruchstelle aufzutrennen gering und/oder auch die Trennsicherheit erhöht, da es nicht zu einem Verkanten der Anschlusslaschen an der Sollbruchstelle kommen kann.According to an advantageous embodiment, it is proposed that the gap runs transversely to the direction of extension of the connecting lugs. In this case, the necessary force to split the predetermined breaking point is low and / or also increases the separation safety, as it can not lead to tilting of the terminal lugs at the predetermined breaking point.
Auch wird vorgeschlagen dass die Anschlusslaschen derart im Bereich des Spalts ineinandergreifen, dass die Anschlusslaschen den Spalt verschließen. Bevorzugt wird hierdurch ein Formschluss zur Aufnahme von Zugkräften gebildet. Bevorzugt greifen die Anschlusslaschen derart ineinander, dass diese eine Zugkraft aufnehmen können. Hierbei wird bevorzugt, dass die Anschlusslaschen bei einer auf sie wirkenden Zugkraft relativ zueinander lagestabil sind.It is also proposed that the connection tabs mesh in the area of the gap in such a way that the connection tabs close the gap. Preferably, a positive connection for receiving tensile forces is thereby formed. Preferably, the terminal lugs engage each other in such a way that they can absorb a tensile force. In this case, it is preferable for the connection straps to be stable in position relative to one another when a tensile force acts on them.
Auch wird vorgeschlagen, dass die Anschlusslaschen im Bereich des Spaltes schwalbenschwanzförmig oder gefalzt geformt sind. Bei einer schwalbenschwänzigen Form des Spalts wird durch die Form selber bereits ein Formschluss zumindest in einer Bewegungsrichtung zwischen den Anschlusslaschen erzielt. Eine Falzung kann dergestalt sein, dass die Anschlusslaschen hakenförmig ineinandergreifen. So kann eine ersten Anschlusslasche derart gebogen sein, dass das Ende der ersten Anschlusslasche in Richtung der ersten Anschlusslasche zeigt und eine zweite Anschlusslasche derart gebogen sein, dass das Ende der zweiten Anschlusslasche in Richtung der zweiten Anschlusslasche zeigt. Diese beiden Enden können ineinandergreifen und somit die Anschlusslaschen gegeneinander verhaken.It is also proposed that the connecting lugs are dovetail-shaped or folded in the region of the gap. In the case of a dovetailed shape of the gap, the form itself already achieves a positive fit, at least in one direction of movement, between the connecting lugs. A fold can be such that the connection tabs hook into one another. Thus, a first connecting lug may be bent such that the end of the first connecting lug points in the direction of the first connecting lug and a second connecting lug may be bent such that the end of the second connecting lug points in the direction of the second connecting lug. These two ends can interlock and thus catch the connecting lugs against each other.
Um die Anschlusslaschen miteinander zu verbinden, wird vorgeschlagen, dass der Verbindungsteil ein galvanisch aufgebrachten Material ist, welches den Spalt elektrisch schließt. Nach dem Stanzen ist ein Spalt zwischen den Anschlusslaschen gebildet. Dieser Spalt kann dabei durch Verbindungsstege überbrückt sein. Der Spalt ist bevorzugt weniger als 50µm, besonders bevorzugt weniger als 20 µm breit. In diesem Fall wird in einem galvanischen Beschichtungsprozess der Spalt durch das Beschichtungsmaterial elektrisch und mechanisch geschlossen, was bedeutet, dass das Beschichtungsmaterial den Spalt auffüllt. Anschließend können die eventuell noch vorhandenen Verbindungsstege entfernt werden, insbesondere durch ein Fräsen entlang der langen Kanten der Anschlusslaschen. Die Anschlusslaschen sind dann nur noch durch das galvanische Beschichtungsmaterial miteinander elektrisch als auch mechanisch verbunden.In order to connect the connecting straps to one another, it is proposed that the connecting part is a galvanically applied material which electrically closes the gap. After punching, a gap is formed between the terminal lugs. This gap can be bridged by connecting webs. The gap is preferably less than 50 μm , more preferably less than 20 μm wide. In this case, in a galvanic coating process, the gap is electrically and mechanically closed by the coating material, which means that the coating material fills the gap. Subsequently, the possibly still existing connecting webs can be removed, in particular by milling along the long edges of the connecting lugs. The terminal lugs are then connected to each other only by the galvanic coating material electrically and mechanically.
Um die Auslösesicherheit zu erhöhen, wird auch vorgeschlagen, dass die Anschlusslaschen von dem Zünder wegweisend geneigt sind. Somit bildet sich ein sich verjüngender Schusskanal in Richtung der Sollbruchstelle.To increase the trip safety, it is also proposed that the terminal lugs are groundbreaking inclined by the igniter. Thus, a tapered shot channel is formed in the direction of the predetermined breaking point.
Gemäß einem vorteilhaften Ausführungsbeispiel haben die Anschlusslaschen geneigte Schenkel, derart, dass die Schenkel ein Dreieck oder einen Halbkreis aufspannen.According to an advantageous embodiment, the terminal lugs have inclined legs, such that the legs span a triangle or a semicircle.
Um die Wahrscheinlichkeit weiter zu erhöhen, dass im Auslösefall die Sollbruchstelle birst, wird vorgeschlagen, dass die Anschlusslaschen an Biegekanten ausgeklinkt sind und/oder eine eingeprägte Nut aufweisen. Das Ausklinken an den Biegekanten bewirkt eine Materialschwächung, so dass eine klar definierte Biegekante entsteht. Die Nut bewirkt ebenfalls eine klar definierte Biegelinie.In order to further increase the likelihood that the breaking point bursts in the event of triggering, it is proposed that the connecting lugs are notched at bending edges and / or have an embossed groove. The notching at the bending edges causes a material weakening, so that a clearly defined bending edge is formed. The groove also causes a clearly defined bending line.
Gemäß einem vorteilhaften Ausführungsbeispiel wird auch vorgeschlagen, dass die Anschlusslaschen eine Öffnung eines Gehäuses derart verschließen, dass der Verbindungsteil im Bereich der Öffnung angeordnet ist. Wie eingangs bereits erläutert, verschließen die Anschlusslaschen das Gehäuse. Um nun mittels des Gasdrucks des Zünders die Verbindungslaschen elektrisch auseinanderzubringen, wird vorgeschlagen, dass das Verbindungsteil im Bereich der Öffnung angeordnet ist.According to an advantageous embodiment, it is also proposed that the connection tabs close an opening of a housing in such a way that the connection part is arranged in the region of the opening. As already explained, the terminal latches close the housing. In order to now electrically separate the connecting straps by means of the gas pressure of the igniter, it is proposed that the connecting part is arranged in the region of the opening.
Gemäß einem vorteilhaften Ausführungsbeispiel wird vorgeschlagen, dass die Öffnung eine Mündung eines Schusskanals des Zünders bildet.According to an advantageous embodiment, it is proposed that the opening forms an opening of a firing channel of the igniter.
Schließlich wird vorgeschlagen, dass die Anschlusslaschen mit dem Gehäuse verklebt sind. Auch ist es möglich, dass die Anschlusslaschen mittels eines Reibschweißprozesses mit dem Gehäuse verbunden werden. Das Gehäuse ist bevorzugt aus einem Kunststoffmaterial. Die Wandungen des Gehäuses sind im Bereich des Schusskanals bevorzugt verstärkt, derart, dass die Wandungen einem höheren Druck standhalten, als das Verbindungsteil.Finally, it is proposed that the connection tabs are glued to the housing. It is also possible for the connecting straps to be connected to the housing by means of a friction welding process. The housing is preferably made of a plastic material. The walls of the housing are preferably reinforced in the region of the firing channel, such that the walls withstand a higher pressure than the connecting part.
Auch wird vorgeschlagen, dass die Sollbruchstelle im Verbindungsteil durch eine eingeprägte Nut oder eine eingeprägte Perforierung gebildet ist. Sowohl die Nut als auch die Perforierung kann dazu beitragen, dass die Bruchstelle beim Auslösen des pyrotechnischen Zünders definiert entlang der Sollbruchstelle verläuft.It is also proposed that the predetermined breaking point in the connecting part is formed by an embossed groove or an embossed perforation. Both the groove and the perforation can contribute to the Breakage point when triggering the pyrotechnic igniter defined along the predetermined breaking point runs.
Nachfolgend wird der Gegenstand anhand einer Ausführungsbeispiele zeigenden Zeichnung näher erläutert. In der Zeichnung zeigen:
- Fig. 1
- eine Schnittansicht durch einen Stromunterbrecher gemäß eines Ausführungsbeispiels im inaktiven Zustand;
- Fig. 2
- eine Schnittansicht durch einen Stromunterbrecher nach
Figur 1 im ausgelösten Zustand; - Fig. 3
- eine Draufsicht auf Anschlusslaschen mit einem Verbindungsteil;
- Fig. 4
- eine weitere Draufsicht auf Anschlusslaschen mit einem Verbindungsteil;
- Fig. 5
- eine Seitenansicht von Anschlusslaschen mit einem Verbindungsteil;
- Fig. 6
- eine Draufsicht auf Verbindungslaschen mit einem Anschlussteil.
- Fig. 1
- a sectional view through a circuit breaker according to an embodiment in the inactive state;
- Fig. 2
- a sectional view through a circuit breaker after
FIG. 1 in the triggered state; - Fig. 3
- a plan view of connecting tabs with a connecting part;
- Fig. 4
- a further plan view of connecting straps with a connecting part;
- Fig. 5
- a side view of connecting tabs with a connecting part;
- Fig. 6
- a plan view of connecting straps with a connection part.
Zu erkennen ist, dass die Anschlusslaschen 2, 4 einen Schusskanal 8 eines Gehäuses 14 einer Zündpille 10 verschließen. Das Gehäuse 14 ist dabei aus Kunststoff gebildet und die Wände des Gehäuses sind so stark, dass sie den Gasdruck des ausgelösten Zünders 14 standhalten. Zu erkennen ist, dass der Zünder 10 über elektrische Zünddrähte gezündet werden kann. Ein Zündimpuls kann beispielsweise von einem Airbagsteuergerät empfangen werden.It can be seen that the connecting
Die Anschlusslaschen 2, 4 sind derart mit dem Gehäuse 14 verklebt, dass diese den Schusskanal 8 abdichten, so dass der beim Zünden der Zündpille 10 auftretende Gasdruck ausreichend ist, das Verbindungsteil 6 zu trennen.The connecting
Der Auslösefall ist in
Ferner ist zu erkennen, dass die Anschlusslaschen im Bereich der Nuten 12 Ausklinkungen 13 aufweisen. Die Ausklinkungen 13 dienen dazu, die Materialstärke der Anschlusslaschen 2, 4 zu verringern, so dass sich diese im Bereich der Ausklinkungen sich verbiegen sobald die Zündpille 10 auslöst.Furthermore, it can be seen that the
Ein einziges Flachteil wird z.B. in einem Stanzprozess so gestanzt, dass die Anschlusslaschen 2, 4 mittels der Verbindungsstege 16 noch verbunden sind. Die Verbindungsstege 16 können dünner als 1mm sein und dienen lediglich dazu, die Anschlusslaschen 2, 4 relativ zueinander zu positionieren, so dass der Spalt 18 eine bestimmte Breite hat. Im nachfolgenden Fertigungsprozess können die Anschlusslaschen 2, 4 aufeinander zu bewegt werden, so dass die Verbindungsstege 16 aus der zwischen den Anschlusslaschen 2, 4 aufgespannten Fläche A herausgedrückt werden. Die plastische Verformung der Verbindungsstege 16 bewirkt, dass die Breite des Spalts 10 klar definiert werden kann. Der Spalt 18 wird bei diesem Verarbeitungsschritt beispielsweise auf weniger als 50µm, bevorzugt weniger als 20µm verkleinert.A single flat part is punched in a punching process, for example, so that the connecting
Im Anschluss daran können die mittels der Verbindungsstege 16 verbundenen Anschlusslaschen 2, 4 einem galvanischen Beschichtungsprozess unterzogen werden. Im galvanischen Beschichtungsprozess werden nicht nur die Anschlusslaschen 2, 4 miteinander beschichtet, sondern der Spalt 18 wird durch das Beschichtungsmaterial verschlossen. Dabei kann das Material, beispielsweise Zinn oder Zink, in den Spalt 18 eindringen und diesen verschließen.Following this, the
Nach dem Auskühlen des Beschichtungsmaterials ist der Spalt 18 geschlossen und das Beschichtungsmaterial verbindet die Anschlusslaschen 2, 4 sowohl mechanisch als auch elektrisch.After the cooling of the coating material, the
Im Anschluss daran können die Verbindungsstege entlang der langen Seitenkanten der Anschlusslaschen 2, 4 entfernt werden. Dies kann beispielsweise mittels Fräsen erfolgen. Die Verbindungsstege 16 sind nicht mehr notwendig, da die Anschlusslaschen 2, 4 durch das in der Galvanik aufgebrachte Material miteinander verbunden sind. Somit wird galvanisch das Verbindungsteil 6 in den Spalt 18 eingebracht, entlang dessen die Sollbruchstelle verläuft.Following this, the connecting webs can be removed along the long side edges of the connecting
Der Spalt kann auch durch eine Perforierung ersetzt werden. Auch kann der Spalt durch eine eingeprägte Nut ersetzt werden.The gap can also be replaced by a perforation. Also, the gap can be replaced by an embossed groove.
Die gezeigte Sicherung lässt sich bei geringem Materialaufwand besonders kostengünstig herstellen. Die Auslösesicherheit ist jedoch stets gewährt.The fuse shown can be produced particularly cost-effectively with low material costs. However, the tripping safety is always granted.
Claims (13)
- Fuse for motor vehicle power lines having- a first connection flap (2),- a second connection flap (4)- a connection portion (6) which electrically connects the connection flaps (2, 4) and which forms a predetermined breaking location,- wherein the connection flaps (2, 4) and the electrical connection portion (6) sealing an explosion chamber (8) of a pyrotechnical igniter (10) in such a manner that the predetermined breaking location bursts owing to the gas pressure of the pyrotechnical igniter (10) brought about in the event of actuation,characterized in that- the connection flaps (2, 4) are spaced from each other by a gap (18),- the connection portion (6) is arranged in the gap (18) connecting the connection flaps (2, 4) electrically and mechanically with each other.
- Fuse according to claim 1, characterised in that the connection portion (6) is formed from a solder material.
- Fuse according to any one of claims 1 to 2 characterised in that the gap (18) is formed by a punching operation by which the connection flaps (2, 4) are formed.
- Fuse according to any one of claims 1 to 3 characterised in that the gap (18) extends transversely relative to the extension direction of the connection flaps (2, 4).
- Fuse according to any one of claims 1 to 4 characterised in that the connection flaps (2, 4) engage one in the other in the region of the gap (18) in such a manner that the connection flaps (2, 4) close the gap and/or the connection flaps (2, 4) are positionally stable with respect to each other in the event of a tensile force and/or the connection flaps (2, 4) are formed in a dovetail-like or folded manner in the region of the gap (18).
- Fuse according to any one of claims 1 to 5characterised in that the connection portion (6) is a material applied by electroplating in such a manner that the gap (18) is electrically closed.
- Fuse according to any one of claims 1 to 6 characterised in that the connection flaps (2, 4) are inclined so as to face away from the igniter (10).
- Fuse according to claim 7 characterised in that the connection flaps (2, 4) have members (2a, 4a) which are inclined in such a manner that the members (2a, 2b) define a triangle or a semi-circle.
- Fuse according to either claim 7or claim 8 characterised in that the connection flaps (2, 4) are notched at bending edges and/or have an embossed groove (12).
- Fuse according to any one of claims 1 to 9 characterised in that the connection flaps (2, 4) close an opening of a housing (14) in such a manner that the connection portion (6) is arranged in the region of the opening.
- Fuse according to claim 10characterised in that the opening forms a mouth of a firing channel of the igniter (10).
- Fuse according to any one of claims 1 to 11, characterised in that the connection flaps (2, 4) are adhesively bonded to the housing (14).
- Fuse according to any one of claims 1 to 12, characterised in that the predetermined breaking location in the connection portion (6) is formed by means of an embossed groove or an embossed perforation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010011150A DE102010011150B4 (en) | 2010-03-11 | 2010-03-11 | Electrical fuse for motor vehicle power lines and method of manufacture of such fuse |
PCT/EP2011/050934 WO2011110376A1 (en) | 2010-03-11 | 2011-01-25 | Fuse for a motor vehicle power line |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2545575A1 EP2545575A1 (en) | 2013-01-16 |
EP2545575B1 true EP2545575B1 (en) | 2015-04-01 |
Family
ID=43899583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11701968.7A Active EP2545575B1 (en) | 2010-03-11 | 2011-01-25 | Fuse for a motor vehicle power line |
Country Status (6)
Country | Link |
---|---|
US (1) | US9425010B2 (en) |
EP (1) | EP2545575B1 (en) |
CN (1) | CN102834889B (en) |
DE (1) | DE102010011150B4 (en) |
ES (1) | ES2537390T3 (en) |
WO (1) | WO2011110376A1 (en) |
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-
2010
- 2010-03-11 DE DE102010011150A patent/DE102010011150B4/en active Active
-
2011
- 2011-01-25 ES ES11701968.7T patent/ES2537390T3/en active Active
- 2011-01-25 EP EP11701968.7A patent/EP2545575B1/en active Active
- 2011-01-25 WO PCT/EP2011/050934 patent/WO2011110376A1/en active Application Filing
- 2011-01-25 US US13/583,741 patent/US9425010B2/en active Active
- 2011-01-25 CN CN201180013430.1A patent/CN102834889B/en active Active
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CN102834889A (en) | 2012-12-19 |
CN102834889B (en) | 2015-11-25 |
US9425010B2 (en) | 2016-08-23 |
WO2011110376A1 (en) | 2011-09-15 |
ES2537390T3 (en) | 2015-06-08 |
DE102010011150B4 (en) | 2012-03-29 |
EP2545575A1 (en) | 2013-01-16 |
DE102010011150A1 (en) | 2011-09-15 |
US20130009745A1 (en) | 2013-01-10 |
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