DE102007004908B3 - Motor vehicle`s e.g. car, electrical connector disconnecting method, involves deforming electrical cable in region of predetermined breaking point both before and after severing electrical cable - Google Patents
Motor vehicle`s e.g. car, electrical connector disconnecting method, involves deforming electrical cable in region of predetermined breaking point both before and after severing electrical cable Download PDFInfo
- Publication number
- DE102007004908B3 DE102007004908B3 DE200710004908 DE102007004908A DE102007004908B3 DE 102007004908 B3 DE102007004908 B3 DE 102007004908B3 DE 200710004908 DE200710004908 DE 200710004908 DE 102007004908 A DE102007004908 A DE 102007004908A DE 102007004908 B3 DE102007004908 B3 DE 102007004908B3
- Authority
- DE
- Germany
- Prior art keywords
- electrical cable
- breaking point
- electrical
- pressure chamber
- predetermined breaking
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
- H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
-
- 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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- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft ein Trennelement zur Durchtrennung einer elektrischen Leitung, insbesondere in einem Kraftfahrzeug, nach dem Oberbegriff des Anspruchs 1.The The invention relates to a separating element for cutting through an electrical Line, in particular in a motor vehicle, according to the preamble of Claim 1.
Insbesondere in der Kfz-Technik ist es wünschenswert, elektrische Starkstromkreise nach einem Unfall von der Autobatterie zu trennen, um Zündquellen in Form von Funken zu vermeiden. Weiterhin sind bis heute extrem hochohmige Verbraucher in Fahrzeugen über normale Sicherungen nicht abzusichern. Eine Möglichkeit der Absicherung sind pyrotechnische Trennelemente bei denen eine pyrotechnische Ladung eine Leiterbahn einmalig und dauerhaft durchtrennt.Especially in automotive engineering it is desirable Electric power circuits after an accident from the car battery separate to ignition sources in the form of sparks to avoid. Furthermore are still extreme today high-impedance consumers in vehicles can not be secured via normal fuses. A possibility the hedging are pyrotechnic separating elements where one Pyrotechnic charge a conductor track once and permanently severed.
Es
sind Vorrichtungen bekannt, bei denen ein elektrischer Leiter durch
eine pyrotechnische Ladung und die nach deren Zündung entstehende Druckwelle
getrennt wird. So ist aus der
Entscheidend für die Funktion des Trennelementes ist ein genau definierter Druckraum zwischen dem elektrischen Leiter und der pyrotechnischen Ladung. Bedingt durch die Bauteiltoleranzen kann ein geringer Spalt zwischen dem elektrischen Leiter und der Auflagestelle des Leiters im Gehäuse vorhanden sein. Dieser Spalt kann nach Zündung der pyrotechnischen Ladung zu Leckströmen des entstehenden Druckgases führen. Dadurch wird die Reproduzierbarkeit des Trennvorganges eingeschränkt. Weiterhin werden Bauteile außerhalb des definierten Druckraumes übermäßig beansprucht, so dass die Gefahr besteht, dass sie versagen können.critical for the Function of the separating element is a precisely defined pressure chamber between the electrical conductor and the pyrotechnic charge. Due to the component tolerances, a small gap between the electrical conductor and the contact point of the conductor in the housing be present. This gap can after ignition the pyrotechnic charge to leakage currents of the resulting compressed gas to lead. This restricts the reproducibility of the separation process. Farther be components outside the defined pressure chamber is overstressed, so there is a risk that they will fail.
Der Erfindung liegt deshalb die Aufgabe zugrunde, Leckströme aus dem definierten Druckraum zu unterbinden.Of the The invention is therefore based on the object, leakage currents from the to prevent defined pressure chamber.
Erfindungsgemäß wird das gemäß den Merkmalen des Anspruchs 1 erreicht.According to the invention according to the characteristics of claim 1 achieved.
Bei einem Trennelement zur Durchtrennung einer elektrischen Leitung, insbesondere in einem Kraftfahrzeug, mittels einer Druckwelle, wobei der zu durchtrennende Leiterabschnitt zumindest am Rand eines Druckraumes auf einer den Druckraum umgebenden Hülle aufliegt und dort eingespannt ist, ist erfindungsgemäß an der innersten Kontaktstelle zwischen der elektrischen Leitung und der Auflage der elektrischen Leitung eine durch die Druckwelle verformbare und dadurch gegen einen Spalt zwischen der elektrischen Leitung und der Auflage andrückbare Dichtung vorgesehen, die den Spalt in radialer Richtung abdichtet.at a separating element for cutting through an electrical line, in particular in a motor vehicle, by means of a pressure wave, wherein the conductor section to be cut at least at the edge of a pressure chamber rests on a sleeve surrounding the pressure chamber and clamped there is, according to the invention at the innermost contact point between the electrical wire and the Edition of the electrical line deformable by the pressure wave and thereby against a gap between the electrical line and the pad pressable Seal provided which seals the gap in the radial direction.
Mittels dieser Dichtung wird gewährleistet, dass der Druck auf den Druckraum begrenzt bleibt. Dadurch liegen reproduzierbare Druckverhältnisse vor. Die in der Regel im Trennbereich des Leiters vorgesehene Sollbruchstelle kann robust ausgelegt werden, da nicht zu befürchten ist, dass der Druck durch Leckströme verringert wird. Die Bauteile außerhalb des definierten Druckraumes müssen nicht überdimensioniert werden, um eventuellen Leckströmen standzuhalten. Sie können vielmehr entsprechend der normalen Belastung ausgelegt werden, wodurch Kosten eingespart werden. Im Falle der Verwendung einer pyrotechnischen Ladung können die aufzubringenden Gasmengen reduziert werden. Insgesamt wird die Funktionssicherheit erhöht.through This seal will ensure that the pressure on the pressure chamber remains limited. As a result, there are reproducible Pressure conditions before. The intended in the separation region of the conductor predetermined breaking point can be designed sturdy, because there is no fear that the pressure by leakage currents is reduced. The components outside the defined pressure chamber have to not oversized to withstand any leakage. You can rather be designed according to the normal load, thereby reducing costs be saved. In case of using a pyrotechnic Charge can the applied gas quantities are reduced. Overall, the Increased functional reliability.
Vorzugsweise ist die Dichtung an einem den Druckraum umgebenden Rohr als Hülle vorgesehen, das in einem eine pyrotechnische Ladung aufnehmenden Gehäuse angeordnet ist.Preferably the seal is provided on a tube surrounding the pressure chamber as a shell, the arranged in a receiving a pyrotechnic charge housing is.
Es ist zweckmäßig, dass die Dichtung als Dichtlippe ausgebildet ist, die vorzugsweise Bestandteil des Rohres ist. Das Rohr kann zum Ausgleich von Toleranzen in geringem Umfang verschiebbar sein.It is appropriate that the seal is designed as a sealing lip, which is preferably part of the pipe is. The tube can compensate for tolerances in low Be displaceable circumference.
Die Erfindung soll in einem Ausführungsbeispiel anhand von Zeichnungen erläutert werden. Es zeigen:The Invention is intended in one embodiment illustrated by drawings become. Show it:
In
der
Im
Gehäuse
Zwischen
dem Rohr
Nach
der Zündung
der pyrotechnischen Ladung
An Stelle der im Rohr integrierten Dichtlippe kann auch eine separate Dichtung vorgesehen sein, die durch den Druck im Druckraum dann nicht nur gegen die Stromschiene sondern auch seitlich gegen das Rohr bzw. einen anderen Gehäuseabschnitt gedrückt wird, so dass ein Spalt zwischen der Stromschiene und dem Rohr bzw. einem anderen Gehäuseabschnitt abgedichtet wird.At The location of the integrated sealing lip in the pipe can also be a separate Seal be provided by the pressure in the pressure chamber then not only against the busbar but also against the side Tube or another housing section depressed is such that a gap between the busbar and the pipe or another housing section is sealed.
Die erfindungsgemäße Anordnung kann außer bei Trennelementen auch bei Schalteinrichtungen angewandt werden.The inventive arrangement can except be applied to separating elements and switching devices.
Claims (5)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710004908 DE102007004908B3 (en) | 2007-01-25 | 2007-01-25 | Motor vehicle`s e.g. car, electrical connector disconnecting method, involves deforming electrical cable in region of predetermined breaking point both before and after severing electrical cable |
EP07725543A EP2020013A1 (en) | 2006-05-22 | 2007-05-21 | Method and devicefor single and permanent disconnection of an electrical connection, in particular in a vehicle |
PCT/EP2007/004647 WO2007134875A1 (en) | 2006-05-22 | 2007-05-21 | Method and devicefor single and permanent disconnection of an electrical connection, in particular in a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710004908 DE102007004908B3 (en) | 2007-01-25 | 2007-01-25 | Motor vehicle`s e.g. car, electrical connector disconnecting method, involves deforming electrical cable in region of predetermined breaking point both before and after severing electrical cable |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007004908B3 true DE102007004908B3 (en) | 2008-01-31 |
Family
ID=38859720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710004908 Expired - Fee Related DE102007004908B3 (en) | 2006-05-22 | 2007-01-25 | Motor vehicle`s e.g. car, electrical connector disconnecting method, involves deforming electrical cable in region of predetermined breaking point both before and after severing electrical cable |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007004908B3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013100825B3 (en) * | 2013-01-28 | 2013-12-19 | Benteler Automobiltechnik Gmbh | Pyro-mechanical actuator e.g. force transmitters for use in motor car system, has elastic sealing part arranged in hollow body and comprising sealing region, which closes opening developed by separation of coupling part in hollow body |
DE102021109348A1 (en) | 2021-04-14 | 2022-10-20 | Weyer Gmbh | Charging cable with predetermined breaking point |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006016171U1 (en) * | 2006-10-18 | 2006-12-28 | Takata-Petri Ag | Pressure-wave activated, single-use permanent isolating switch for motor vehicle, has pressure-wave generating source and non-conductive wedge arranged at opposite sides of conductor to be severed |
-
2007
- 2007-01-25 DE DE200710004908 patent/DE102007004908B3/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006016171U1 (en) * | 2006-10-18 | 2006-12-28 | Takata-Petri Ag | Pressure-wave activated, single-use permanent isolating switch for motor vehicle, has pressure-wave generating source and non-conductive wedge arranged at opposite sides of conductor to be severed |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013100825B3 (en) * | 2013-01-28 | 2013-12-19 | Benteler Automobiltechnik Gmbh | Pyro-mechanical actuator e.g. force transmitters for use in motor car system, has elastic sealing part arranged in hollow body and comprising sealing region, which closes opening developed by separation of coupling part in hollow body |
DE102021109348A1 (en) | 2021-04-14 | 2022-10-20 | Weyer Gmbh | Charging cable with predetermined breaking point |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |