EP1710871B1 - Current separator for the electrical cables in a car - Google Patents
Current separator for the electrical cables in a car Download PDFInfo
- Publication number
- EP1710871B1 EP1710871B1 EP05007772A EP05007772A EP1710871B1 EP 1710871 B1 EP1710871 B1 EP 1710871B1 EP 05007772 A EP05007772 A EP 05007772A EP 05007772 A EP05007772 A EP 05007772A EP 1710871 B1 EP1710871 B1 EP 1710871B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection element
- circuit breaker
- projection
- flat part
- recess
- 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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Links
- 238000000034 method Methods 0.000 claims abstract 4
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000005304 joining Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 19
- 230000004913 activation Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
-
- 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
- H01H85/08—Fusible members characterised by the shape or form of the fusible member
-
- 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
- H01R13/02—Contact members
- H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/637—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by fluid pressure, e.g. explosion
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49105—Switch making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49107—Fuse making
Definitions
- the invention generally relates to a circuit breaker for electrical supply lines, in particular power lines or battery cables, of motor vehicles with a first connection element and a second connection element, wherein in a conductive state of the circuit breaker, a current path between the first connection element and the second connection element.
- Circuit breakers for motor vehicles are well known.
- a circuit breaker and a circuit breaker circuit is known.
- the DE 197 12 544 A1 To prevent the power supply by mechanically cutting a fuse.
- this cutting of the fuse leads to the fact that after an excessive impact of the circuit breaker is destroyed and must be replaced.
- the beats DE 197 12 544 A1 to press by means of a pressure block a moving contact on a fixed contact and thus the conductivity maintain.
- the holding state can be solved to open the breaker.
- the DE 196 06 447 A1 proposes a circuit breaker for battery lines of vehicles.
- a piston is inserted into a hollow cylinder of a receptacle and thus ensures the current path.
- the piston is pushed out of the hollow cylinder by means of a detonator capsule.
- the current path is interrupted.
- the piston can be prevented from jumping back into its original position by means of an annular shoulder in the hollow cylinder.
- a circuit breaker in which a socket is formed on a battery terminal.
- a connector corresponding to the socket is formed on a terminal lug of a cable terminal.
- the plug is shaped to fit in plugged state, an undercut in the socket engages behind. This locks the plug in the socket.
- a circuit breaker for electrical supply lines available provide, on the one hand low in the production and on the other hand ensures a fault-free operation.
- the first connection element has a recess
- the second connection element is formed from an electrically conductive flat part
- the second connection element has a projection corresponding to the recess, such that in the conductive state of the circuit breaker, the projection non-positively is arranged in the recess.
- connection element is formed from conductive flat parts, results in an extremely favorable production.
- first connection part can be formed from a Plachleiter, which further reduces the production costs.
- the flat parts can be easily deformed and thus both a recess and a projection can be formed in the connection elements with little technical effort.
- the two connection elements can be mechanically connected to one another. A current path is thereby made.
- the force that must be used to solve this connection can be adjusted by shaping the recess and the projection.
- the projection is arranged in the recess by means of a press fit. Preferred is an immediate clamping connection between the projection and recess. In particular, a conical interference fit is preferred.
- the recess and / or the projection may be formed tapered. it is preferred if the pot tapers starting from the flat part.
- the connecting elements can be formed particularly favorably if at least one flat part is produced from a metal sheet. Sheets of various strengths of electrically conductive materials are cheap and can be easily processed. Also, extruded strips can be used for the production of flat parts.
- the flat parts are formed from the sheets by means of separation processes.
- punching, laser cutting, sawing or other chipless or spanarnide separation methods are suitable as a separation process.
- the recess can be punched, cut or drilled out of the connection element.
- the recess has a collar.
- This collar can be formed for example when punching out the recess of the connection element. Further, the collar may be formed by inserting a mandrel into the recess after it has been formed. The collar can be shaped so that there is a good fit connection between projection and recess.
- the circuit breaker can be produced in a particularly favorable manner if the projection is formed in one piece from the flat part.
- the projection can be pulled out of the flat part. This can be done for example by means of ironing or deep drawing or by bending. This can be a stamp in the Flat part are guided, which forms in the flat part of the projection.
- the projection is attached to the flat part by means of material and / or non-positive joining.
- the projection is a deep-drawn pot corresponding to the recess.
- Particularly preferred here is the very cost-effective and rapid production of the circuit breaker, when the projection is pulled only during the joining of the first connection element with the second connection element from the flat part.
- the first connection element can be placed on the second connection element, and a stamp can simultaneously form the projection and drive it into the recess in order to join the connection elements together.
- a further advantageous embodiment results when a separation unit is provided on the first connection element.
- the separation unit may have an auxiliary drive, by means of which the connection elements can be separated from each other.
- a pyrotechnic squib is preferred as an auxiliary drive.
- This separation unit can be provided on the first connection element in such a way that the non-positive connection between the first and the second connection element can be released with it. For example, by the ignition of the squib, a pressure can be generated, which presses the projection out of the recess and thus causes a separation of the connection elements.
- a particularly secure separation is ensured when a bolt is provided in the separation unit, which is accelerated in the direction of the projection and thus solves the frictional connection, through the Acceleration of the bolt, a greater impulse can be exerted on the projection, so that the press connection is released with greater certainty.
- Another object of the invention is a method for producing a circuit breaker for motor vehicles by forming a first terminal element and forming a second formed from an electrically conductive flat part connection element, characterized by forming a recess in the first connection element, forms a recess corresponding to the recess in the second Connection element, and connecting the first connection element with the second connection element by frictionally joining the projection and recess.
- the circuit breaker can be produced particularly advantageously and favorably if the projection is formed only during the connection of the connection elements. This can be done, for example, by a mandrel driving the material of the second connection element into the recess of the first connection element and thus forming a projection in the second connection element which is in press-connection with the first connection element.
- FIG. 1A shows a first connection element 2 with a recess B.
- the first connection element 2 may be a flat part formed from a sheet metal. To produce the flat part of this can be punched from a sheet, cut or produced in any other way.
- the recess 8 can be punched out of the flat part. It is also possible that the recess 8 is cut or drilled out of the flat part.
- FIG. 1B shows a second connection element 4.
- this second connection element 4 may be a flat part formed from a sheet metal.
- a projection 10 is provided at the second connection element 4.
- the projection 10 may be formed in the form of a pot.
- the projection 10 is in particular formed integrally with the flat part. For the preparation of the projection 10, this can be formed by deep drawing from the flat part, the projection 10 can also be welded or soldered to the flat part.
- connection elements 2, 4 may have a constriction 5.
- the constriction 5 can serve as a predetermined breaking point. When the connection is broken off, a connection element can be more easily deformed along the constriction 5, which results in the projection 10 being able to be released more easily from the recess 8.
- the second flat part 4 can be laid in the raw state on the first connection element 2 and a mandrel (not shown) can press the flat part into the recess 8, so that the projection 10 is formed and at the same time the connection elements 2, 4 are frictionally joined.
- FIG. 1C shows a circuit breaker 6, in which the first connection element 2 is joined to the second connection element 4.
- an immediate clamping connection is provided. This can be for example a frictional press connection.
- a current path is formed between the connection element 2 and the connection element 4.
- connection between the connection element 2 and the connection element 4 via the projection 10 can be shaped differently. If recess 8 and projection 10 are conically shaped, a conical press fit can be produced.
- FIG. 2 shows a first connection of the connection elements 2, 4, in which a collar 12 runs along the recess 8 of the first connection element 2.
- the bearing surface of the projection 10 is enlarged in the recess 8, whereby a better adhesion is ensured.
- the collar 12 can be formed by engaging the mandrel 8 after the recess 8 has been formed and engaging further material of the flat part out of the recess.
- FIG. 3 shows a possible design of the connection element 2, in which the recess 8 has no collar 12.
- Such a connection element 2 can be produced more cheaply, but has a lower adhesion, since the projection 10 has a smaller contact surface on the connection element 2.
- FIG. 4 shows a circuit breaker 6 in the assembled state.
- the connection elements 2, 4 are connected to each other by means of press connection.
- a pyrotechnic ignition unit 14 is arranged at the connection element 2, a pyrotechnic ignition unit 14 is arranged at the connection element 2, a pyrotechnic ignition unit 14 is arranged.
- This pyrotechnic separation unit 14 may be encased by encapsulation 18. In the illustrated embodiment, the encapsulation 18 is cut open in order to better represent the pyrotechnic separation unit 14.
- an electrical connection to a connector receptacle 16 can be arranged.
- a pressure can be built up by igniting the squib in the cylinder space between squib and projection, which solves the connection between the connection elements 2, 4.
- the separation unit 14 can be sealed by means of O-ring 15. The seal causes the gas pressure in the cylinder chamber does not fall off before the pot has been blown out of the recess.
- connections 20a, 20b may be formed for connection to a safety battery terminal.
- the terminals 20 may be formed integrally with the connection elements 2, 4.
- 20 points can be arranged in addition to the holes.
- the terminals 20 allow connection to battery terminals. As a result, the current path between a battery terminal and the motor vehicle network can be secured.
- Figure 5A shows a circuit breaker 6 before the activation of the pyrotechnic separation unit 14.
- the connection elements 2, 4 are electrically connected to each other.
- the pyrotechnic separation unit 14 is provided in the encapsulation 18.
- a current flow can run from terminal 20a via connection element 4, connection element 2 and connection 20b.
- the pyrotechnic separation unit 14 can be controlled and ignite the squib.
- the gas pressure produced by the ignition of the ignition pellet causes the projection 10 to be pressed out of the recess 8 and the current path between Connection element 2 and connection element 4 is separated.
- the constriction 5 serves the purpose of simplifying the release of the connection elements 2, 4.
- the connecting element 2, 4 can be bent more easily along the constriction 5. When blowing off, therefore, a smaller force acts on the port 20.
- FIG. 6 shows a sectional view of a circuit breaker according to an embodiment.
- the circuit breaker in addition to a catch housing 22.
- a part of the connecting element 4 is pivoted after ignition of the squib 14.
- the catch housing prevents the connection element 4 can get into the engine compartment.
- a housing 24 closes off the squib 14 tightly.
- a connecting flange 24 a tightly grip the collar 8.
- a seal 28 may be provided which prevents gas from escaping from the cylinder space after ignition of the squib 14.
- the connecting flange 24a of the housing 24 is pushed onto the collar 8 during assembly. Previously, the squib 14 may be inserted into the housing 24.
- the pot 10 may have a depression in the direction of the cylinder chamber. In this depression, an increased gas pressure can build up, which promotes the release of the compound.
- FIG. 7 shows the circuit breaker according to FIG. 6 in an opened state. Only the housing 24 is shown in a non-cut state.
- the circuit breaker according to the invention is characterized by cost-effective and simple production.
- the pyrotechnic ignition unit of the circuit breaker can be reassembled, so that an exchange of components can be omitted.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuses (AREA)
- Air Bags (AREA)
- Control Of Electric Motors In General (AREA)
- Protection Of Generators And Motors (AREA)
- Control Of Direct Current Motors (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Emergency Protection Circuit Devices (AREA)
- Conductive Materials (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
Die Erfindung betrifft im Allgemeinen einen Stromunterbrecher für elektrische Versorgungsleitungen, insbesondere Energieleitungen oder Batteriekabel, von Kraftfahrzeugen mit einem ersten Anschlusselement und einem zweiten Anschlusselement, wobei in einem leitenden Zustand des Stromunterbrechers ein Strompfad zwischen dem ersten Anschlusselement und dem zweiten Anschlusselement verläuft.The invention generally relates to a circuit breaker for electrical supply lines, in particular power lines or battery cables, of motor vehicles with a first connection element and a second connection element, wherein in a conductive state of the circuit breaker, a current path between the first connection element and the second connection element.
Stromkreisunterbrecher für Kraftfahrzeuge sind hinlänglich bekannt. Beispielsweise aus der
Darüber hinaus schlägt die
Die
Auch aus der
Aus der
Schließlich ist aus der
Ausgehend von den zuvor aufgezeigten Nachteilen lag der Erfindung die Aufgabe zugrunde, einen Stromunterbrecher für elektrische Versorgungsleitungen zur Verfügung zu stellen, der einerseits günstig in der Herstellung ist und andererseits einen fehlerfreien Betrieb gewährleistet.Based on the above-mentioned disadvantages of the invention, the object was based, a circuit breaker for electrical supply lines available provide, on the one hand low in the production and on the other hand ensures a fault-free operation.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das erste Anschlusselement eine Ausnehmung aufweist, dass das zweite Anschlusselement aus einem elektrisch leitenden Flachteil gebildet ist, und dass das zweite Anschlusselement einen mit der Ausnehmung korrespondierenden Vorsprung aufweist, derart dass im leitenden Zustand des Stromunterbrechers der Vorsprung kraftschlüssig in der Ausnehmung angeordnet ist.This object is achieved in that the first connection element has a recess, that the second connection element is formed from an electrically conductive flat part, and that the second connection element has a projection corresponding to the recess, such that in the conductive state of the circuit breaker, the projection non-positively is arranged in the recess.
Dadurch, dass zumindest das zweite Anschlusselement aus leitenden Flachteilen gebildet ist, ergibt sich eine äußerst günstige Herstellung. Aber auch das erste Anschlussteil kann aus einem Plachleiter gebildet sein, was die Produktionskosten weiter verringert.The fact that at least the second connection element is formed from conductive flat parts, results in an extremely favorable production. But also the first connection part can be formed from a Plachleiter, which further reduces the production costs.
Die Flachteile lassen sich leicht verformen und somit kann in den Anschlusselementen mit geringem technischem Aufwand sowohl eine Ausnehmung als auch ein Vorsprung gebildet werden. Mittels der kraftschlüssigen Verbindung zwischen Vorsprung und Ausnehmung lassen sich die beiden Anschlusselemente mechanisch miteinander verbinden. Ein Strompfad wird hierdurch hergestellt. Die Kraft, die aufgewendet werden muss, um diese Verbindung zu lösen, lässt sich durch Gestaltung der Ausnehmung und des Vorsprungs einstellen. Vorzugsweise ist der Vorsprung mittels Presspassung in der Ausnehmung angeordnet. Bevorzugt ist eine unmittelbare Spannverbindung zwischen Vorsprung und Ausnehmung. Insbesondere ein konischer Presssitz ist bevorzugt. Hierbei kann die Ausnehmung und/oder der Vorsprung sich verjüngend geformt sein. bevorzugt ist es, wenn der Topf sich ausgehend vom Flachteil verjüngt.The flat parts can be easily deformed and thus both a recess and a projection can be formed in the connection elements with little technical effort. By means of the frictional connection between the projection and the recess, the two connection elements can be mechanically connected to one another. A current path is thereby made. The force that must be used to solve this connection, can be adjusted by shaping the recess and the projection. Preferably, the projection is arranged in the recess by means of a press fit. Preferred is an immediate clamping connection between the projection and recess. In particular, a conical interference fit is preferred. Here, the recess and / or the projection may be formed tapered. it is preferred if the pot tapers starting from the flat part.
Besonders günstig lassen sich die Anschlueselemente bilden, wenn zumindest ein Flachteil aus einem Blech hergestellt ist. Bleche verschiedenster Stärken aus elektrisch leitenden Werkstoffen sind günstig und lassen sich einfach verarbeiten. Auch lassen sich stranggepresste Bänder für die Herstellung der Flachteile verwenden.The connecting elements can be formed particularly favorably if at least one flat part is produced from a metal sheet. Sheets of various strengths of electrically conductive materials are cheap and can be easily processed. Also, extruded strips can be used for the production of flat parts.
Bevorzugt ist es, wenn aus den Blechen die Flachteile mittels Trennverfahren geformt werden. Als Trennverfahren eignen sich insbesondere Stanzen, Laserschneiden, Sägen bzw. sonstige spanlose oder spanhebende Trennverfahren.It is preferred if the flat parts are formed from the sheets by means of separation processes. In particular punching, laser cutting, sawing or other chipless or spanhebende separation methods are suitable as a separation process.
Die Ausnehmung kann aus dem Anschlusselement gestanzt, geschnitten oder gebohrt werden.The recess can be punched, cut or drilled out of the connection element.
Eine besonders stabile Verbindung zwischen den Anschlusselementen wird dadurch gewährleistet, dass die Ausnehmung einen Kragen aufweist. Dieser Kragen kann beispielsweise beim Ausstanzen der Ausnehmung aus dem Anschlusselement gebildet werden. Ferner kann der Kragen durch Einfügen einer Dorns in die Ausnehmung, nachdem diese geformt wurde, gebildet werden. Der Kragen kann so geformt sein, dass sich eine gute Passverbindung zwischen vorsprung und Ausnehmung ergibt.A particularly stable connection between the connecting elements is ensured by the fact that the recess has a collar. This collar can be formed for example when punching out the recess of the connection element. Further, the collar may be formed by inserting a mandrel into the recess after it has been formed. The collar can be shaped so that there is a good fit connection between projection and recess.
Besonders günstig lässt sich der Stromunterbrecher herstellen, wenn der Vorsprung einstückig aus dem Flachteil gebildet ist. Vorzugsweise lässt sich der Vorsprung aus dem Flachteil ziehen. Dies kann beispielsweise mittels Streckziehen oder Tiefziehen bzw. mittels Biegen erfolgen. Hierbei kann ein Stempel in das Flachteil geführt werden, wodurch sich in dem Flachteil der Vorsprung ausbildet. Es ist jedoch auch möglich, dass der Vorsprung an das Flachteil mittels stoff- und/oder kraftschlüssigen Fügens angebracht wird.The circuit breaker can be produced in a particularly favorable manner if the projection is formed in one piece from the flat part. Preferably, the projection can be pulled out of the flat part. This can be done for example by means of ironing or deep drawing or by bending. This can be a stamp in the Flat part are guided, which forms in the flat part of the projection. However, it is also possible that the projection is attached to the flat part by means of material and / or non-positive joining.
Bevorzugt ist es, wenn der Vorsprung ein mit der Ausnehmung korrespondierender, tiefgezogener Topf ist. Besonders bevorzugt ist hierbei die sehr kostengünstige und schnelle Herstellung des Stromunterbrechers, wenn der Vorsprung erst während des Fügens des ersten Anschlusselementes mit dem zweiten Anschlusselement aus dem Flachteil gezogen wird. Hierbei kann beispielsweise das erste Anschlusselement auf das zweite Anschlusselement gelegt werden und ein Stempel kann gleichzeitig den Vorsprung formen und in die Ausnehmung treiben, um die Anschlusselemente miteinander zu fügen.It is preferred if the projection is a deep-drawn pot corresponding to the recess. Particularly preferred here is the very cost-effective and rapid production of the circuit breaker, when the projection is pulled only during the joining of the first connection element with the second connection element from the flat part. In this case, for example, the first connection element can be placed on the second connection element, and a stamp can simultaneously form the projection and drive it into the recess in order to join the connection elements together.
Eine weitere vorteilhafte Ausgestaltung ergibt sich, wenn eine Trenneinheit an dem ersten Anschluseelement vorgesehen ist. Die Trenneinheit kann einen Hilfsantrieb aufweisen, mittels dem die Anschlusselemente voneinander getrennt werden können. Bevorzugt ist eine pyrotechnische Zündpille als Hilfsantrieb. Diese Trenneinheit kann derart an dem ersten Anschlusselement vorgesehen sein, dass mit ihr die kraftschlüssige Verbindung zwischen dem ersten und dem zweiten Anschlusselement lösbar ist. Beispielsweise durch die Zündung der Zündpille kann ein Druck erzeugt werden, der den Vorsprung aus der Ausnehmung herauspresst und somit eine Trennung der Anschlusselemente bewirkt.A further advantageous embodiment results when a separation unit is provided on the first connection element. The separation unit may have an auxiliary drive, by means of which the connection elements can be separated from each other. A pyrotechnic squib is preferred as an auxiliary drive. This separation unit can be provided on the first connection element in such a way that the non-positive connection between the first and the second connection element can be released with it. For example, by the ignition of the squib, a pressure can be generated, which presses the projection out of the recess and thus causes a separation of the connection elements.
Eine besonders sichere Trennung wird dann gewährleistet, wenn in der Trenneinheit ein Bolzen vorgesehen ist, der in Richtung des Vorsprungs beschleunigt wird und somit die kraftschlüssige Verbindung löst, Durch die Beschleunigung des Bolzens kann ein größerer Impuls auf den Vorsprung ausgeübt werden, so dass die Pressverbindung mit höherer Sicherheit gelöst wird.A particularly secure separation is ensured when a bolt is provided in the separation unit, which is accelerated in the direction of the projection and thus solves the frictional connection, through the Acceleration of the bolt, a greater impulse can be exerted on the projection, so that the press connection is released with greater certainty.
Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Herstellung eines Stromunterbrechers für Kraftfahrzeuge durch Formen eines ersten Anschlusselements und Formen eines zweiten aus einem elektrisch leitenden Flachteil gebildeten Anschlusselements, gekennzeichnet, durch Formen einer Ausnehmung im ersten Anschlusselement, Formen eines mit der Ausnehmung korrespondierenden Vorsprungs im zweiten Anschlusselement, und Verbinden des ersten Anschlusselements mit dem zweiten Anschlusselement durch kraftschlüssiges Fügen von Vorsprung und Ausnehmung.Another object of the invention is a method for producing a circuit breaker for motor vehicles by forming a first terminal element and forming a second formed from an electrically conductive flat part connection element, characterized by forming a recess in the first connection element, forms a recess corresponding to the recess in the second Connection element, and connecting the first connection element with the second connection element by frictionally joining the projection and recess.
Besonders vorteilhaft und günstig lässt sich der Stromunterbrecher herstellen, wenn der Vorsprung erst während des Verbindens der Anschlusselemente geformt wird. Dies kann beispielsweise dadurch geschehen, dass ein Dorn das Material des zweiten Anschlusselementes in die Ausnehmung des ersten Anschlusselementes treibt und somit einen Vorsprung in dem zweiten Anschlusselement ausbildet, der in Pressverbindung mit dem ersten Anschlusselement ist.The circuit breaker can be produced particularly advantageously and favorably if the projection is formed only during the connection of the connection elements. This can be done, for example, by a mandrel driving the material of the second connection element into the recess of the first connection element and thus forming a projection in the second connection element which is in press-connection with the first connection element.
Nachfolgend wird die Erfindung anhand einer Ausführungsbeispiele zeigenden Zeichnung näher erläutert.The invention will be explained in more detail with reference to an exemplary embodiments showing drawing.
In der Zeichnung zeigt:
- Figur 1A
- ein erstes Anschlusselement ;
- Figur 1B
- ein zweites Anschlusselement;
- Figur 1C
- einen Stromunterbrecher mit zusammengefügten Anschlusselementen;
Figur 2- ein ersten Ausführungsbeispiel einer Fügung der Anschlusselemente;
- Figur 3
- ein zweites Ausführungsbeispiel einer Fügung der Anschlusselemente;
Figur 4- eine Ansicht eines Stromunterbrecher mit pyrotechnischer Trenneinheit;
- Fig. 5A
- ein Stromunterbrecher im leitenden Zustand vor der Aktivierung der pyrotechnischen Trenneinheit;
- Fig. 5B
- einen Stromunterbrecher im getrennten Zustand nach Aktivierung der pyrotechnischen Zündeinheit;
- Fig. 6
- eine Schnittansicht eines geschlossenen Stromunterbrechers;
- Fig. 7
- eine Schnittansicht eines geöffneten Stromunterbrechers.
- Figure 1A
- a first connection element;
- FIG. 1B
- a second connection element;
- Figure 1C
- a circuit breaker with assembled connection elements;
- FIG. 2
- a first embodiment of a joining of the connection elements;
- FIG. 3
- a second embodiment of a joining of the connecting elements;
- FIG. 4
- a view of a circuit breaker with pyrotechnic separation unit;
- Fig. 5A
- a circuit breaker in a conductive state prior to activation of the pyrotechnic separation unit;
- Fig. 5B
- a circuit breaker in the disconnected state after activation of the pyrotechnic ignition unit;
- Fig. 6
- a sectional view of a closed circuit breaker;
- Fig. 7
- a sectional view of an open circuit breaker.
Figur 1A zeigt ein erstes Anschlusselement 2 mit einer Ausnehmung B. Das erste Anschlusselement 2 kann ein aus einem Blech gebildetes Flachteil sein. Zur Herstellung des Flachteils kann dieses aus einem Blech gestanzt, geschnitten oder in sonstiger Weise hergestellt werden. Die Ausnehmung 8 kann aus dem Flachteil herausgestanzt werden. Auch ist es möglich, dass die Ausnehmung 8 aus dem Flachteil heraus geschnitten oder gebohrt wird.FIG. 1A shows a
Figur 1B zeigt ein zweites Anschlusselement 4. Dieses zweite Anschlusselement 4 kann, wie auch das erste Anschlusselement 2, ein aus einem Blech geformtes Flachteil sein. An dem zweiten Anschlusselement 4 ist ein Vorsprung 10 vorgesehen. Der Vorsprung 10 kann in Form eines Topfes gebildet sein. Der Vorsprung 10 ist insbesondere einstückig mit dem Flachteil gebildet. Zur Herstellung des Vorsprungs 10 kann dieser mittels Tiefziehen aus dem Flachteil gebildet werden, Der Vorsprung 10 kann auch an das Flachteil angeschweißt oder angelötet werden.FIG. 1B shows a
Eines der Anschlusselemente 2, 4 kann eine Einschnürung 5 aufweisen. Die Einschnürung 5 kann als Sollbruchstelle dienen. Beim Absprengen der Verbindung kann entlang der Einschnürung 5 ein Anschlusselement leichter verformt werden was dazu führt, dass sich der Vorsprung 10 leichter aus der Ausnehmung 8 lösen lässt.One of the
Insbesondere kann das zweite Flachteil 4 im Rohzustand auf das erste Anschlusselement 2 gelegt werden und ein Dorn (nicht gezeigt) kann das Flachteil in die Ausnehmung 8 pressen, so dass der Vorsprung 10 geformt wird und gleichzeitig die Anschlusselemente 2, 4 kraftschlüssig gefügt werden.In particular, the second
Figur 1C zeigt einen Stromunterbrecher 6, bei dem das erste Anschlusselement 2 mit dem zweiten Anschlusselement 4 gefügt ist. Vorzugsweise ist eine unmittelbare Spannverbindung vorgesehen. Dies kann beispielsweise eine kraftschlüssige Pressverbindung sein. In dem gezeigten Zustand ist ein Strompfad zwischen dem Anschlusselement 2 und dem Anschlusselement 4 ausgebildet.FIG. 1C shows a
Die Verbindung zwischen dem Anschlusselement 2 und dem Anschlusselement 4 über den Vorsprung 10 kann unterschiedlich geformt sein. Sind Ausnehmung 8 und Vorsprung 10 konisch geformt, so kann ein konischer Presssitz hergestellt werden.The connection between the
Figur 2 zeigt eine erste Verbindung der Anschlusselemente 2, 4, bei der ein Kragen 12 entlang der Ausnehmung 8 des ersten Anschlusselements 2 verläuft. Durch den Kragen 12 ist die Auflagefläche des Vorsprungs 10 in der Ausnehmung 8 vergrößert, wodurch ein besserer Kraftschluss gewährleistet wird. Der Kragen 12 kann dadurch gebildet werden, dass nachdem die Ausnehmung 8 geformt worden ist, ein Dorn in diese eingreift und weiteres Material des Flachteils aus der Ausnehmung drückt.FIG. 2 shows a first connection of the
Figur 3 zeigt eine mögliche Gestaltung des Anschlusselements 2, bei dem die Ausnehmung 8 keinen Kragen 12 aufweist. Ein solches Anschlusselement 2 lässt sich kostengünstiger herstellen, verfügt jedoch über einen geringeren Kraftschluss, da der Vorsprung 10 eine geringere Auflagefläche an dem Anschlusselement 2 hat.FIG. 3 shows a possible design of the
Figur 4 zeigt einen Stromunterbrecher 6 im zusammengebauten Zustand. Die Anschlusselemente 2, 4 sind mittels Pressverbindung miteinander verbunden. Am Anschlusselement 2 ist eine pyrotechnische Zündeinheit 14 angeordnet. Diese pyrotechnische Trenneinheit 14 kann mittels Umspritzung 18 ummantelt sein. In dem dargestellten Ausführungsbeispiel ist die Umspritzung 18 aufgeschnitten, um die pyrotechnische Trenneinheit 14 besser darstellen zu können.FIG. 4 shows a
Zur Ansteuerung der pyrotechnischen Trenneinheit 14 kann ein elektrischer Anschluss an einer Steckeraufnahme 16 angeordnet werden. Mittels der pyrotechnischen Trenneinheit 14 kann durch Zünden der Zündpille in dem Zylinderraum zwischen Zündpille und Vorsprung ein Druck aufgebaut werden, der die Verbindung zwischen den Anschlusselementen 2, 4 löst. Die Trenneinheit 14 kann mittels O-Ring 15 abgedichtet werden. Die Abdichtung bewirkt, dass der Gasdruck im Zylinderraum nicht abfällt, bevor der Topf aus der Ausnehmung gesprengt worden ist.For controlling the
An den Anschlusselementen 2, 4 können Anschlüsse 20a, 20b zum Anschluss an eine Sicherheitsbatterieklemme angeformt sein. Die Anschlüsse 20 können einstückig mit den Anschlusselementen 2, 4 gebildet sein. An den Anschlüssen 20 können neben den Bohrungen 20 auch Stützpunkte angeordnet sein. Die Anschlüsse 20 ermöglichen den Anschluss an Batteriepolklemmen. Hierdurch kann der Strompfad zwischen einer Batteriepolklemme und dem Kraftfahrzeugnetz abgesichert werden.At the
Figur 5A zeigt einen Stromunterbrecher 6 vor der Aktivierung der pyrotechnischen Trenneinheit 14. Die Anschlusselemente 2, 4 sind elektrisch miteinander verbunden. In der Umspritzung 18 ist die pyrotechnische Trenneinheit 14 vorgesehen. Ein Stromfluss kann von Anschluss 20a über Anschlusselement 4, Anschlusselement 2 und Anschluss 20b verlaufen.Figure 5A shows a
Im Fall eines unverhältnismäßigen Aufpralls, beispielsweise eines Unfalls des Kraftfahrzeugs, kann die pyrotechnische Trenneinheit 14 angesteuert werden und die Zündpille zünden. Der durch das Zünden der Zündpille entstehende Gasdruck bewirkt, dass der Vorsprung 10 aus der Ausnehmung 8 gepresst wird und der Strompfad zwischen Anschlusselement 2 und Anschlusselement 4 aufgetrennt wird. Die Einschnürung 5 dient dabei dem Zweck, das Lösen der Anschlusselemente 2, 4 zu vereinfachen. Das Anschlusselement 2, 4 lässt sich entlang der Einschnürung 5 leichter verbiegen. Beim Absprengen wirkt daher eine geringere Kraft auf den Anschluss 20.In the case of a disproportionate impact, such as an accident of the motor vehicle, the
Figur 6 zeigt eine Schnittansicht eines Stromunterbrechers gemäß eines Ausführungsbeispieles. Neben den zuvor beschriebenen Elementen weist der Stromunterbrecher zusätzlich ein Fanggehäuse 22 auf. In dieses Fanggehäuse 22 wird ein Teil des Anschlusselements 4 nach dem Zünden der Zündpille 14 geschwenkt. Das Fanggehäuse verhindert, dass das Anschlusselement 4 in den Motorraum gelangen kann.Figure 6 shows a sectional view of a circuit breaker according to an embodiment. In addition to the elements described above, the circuit breaker in addition to a
Ein Gehäuse 24 schließt die Zündpille 14 dicht ab. Hierzu kann ein Anschlussflansch 24a den Kragen 8 eng umgreifen. Eine Dichtung 28 kann vorgesehen sein, die verhindert, dass Gas nach dem Zünden der Zündpille 14 aus dem Zylinderraum austritt. Der Anschlussflangch 24a des Gehäuses 24 wird beim Zusammenbau auf den Kragen 8 geschoben. Zuvor kann die Zündpille 14 in das Gehäuse 24 eingesetzt werden.A
Um den Gasdruck im Zylinderraum nach dem Zünden der Zündpille besser für das Lösen der Anschlusselemente 2, 4 voneinander zu nutzen, kann der Topf 10 eine Vertiefung in Richtung des Zylinderraumes haben. In dieser Vertiefung kann sich ein erhöhter Gasdruck aufbauen, was das Lösen der Verbindung fördert.In order better to use the gas pressure in the cylinder chamber after ignition of the squib for the release of the connecting
Figur 7 zeigt den Stromunterbrecher gemäß Figur 6 in einem geöffneten Zustand. Lediglich das Gehäuse 24 ist in einem nicht geschnittenen Zustand dargestellt.FIG. 7 shows the circuit breaker according to FIG. 6 in an opened state. Only the
Der erfindungsgemäße Stromunterbrecher zeichnet sich durch kostengünstige und einfache Herstellung aus. Außerdem kann nach der Aktivierung der pyrotechnischen Zündeinheit der Stromunterbrecher wieder zusammengefügt werden, so dass ein Austausch von Bauteilen entfallen kann.The circuit breaker according to the invention is characterized by cost-effective and simple production. In addition, after the activation of the pyrotechnic ignition unit of the circuit breaker can be reassembled, so that an exchange of components can be omitted.
Claims (16)
- Circuit breaker for electrical power leads, especially energy supply lines or battery cables of motor vehicles with- a first connection element (2) and- a second connection element (4), in which- when the circuit breaker (6) is in conducting state a current path runs between the first connection element (2) and the second connection element (4),- characterised in- that the first connection element (2) is formed from an electrically-conductive flat part,- that a recess (8) is formed in the flat part of the first connection element (2),- that the second connection element (4) is formed from an electrically-conductive flat part,- that a projection (10) corresponding with the recess (8) is formed on the flat part of the second connection element (4), in such a way that when the circuit breaker (1) is in conducting state the projection (10) is arranged friction-locked in the recess (8).
- Circuit breaker according to claim 1, characterised in that at least one flat part is produced from a sheet of metal.
- Circuit breaker according to claim 2, characterised in that at least one flat part is produced from a sheet of metal by means of a cutting process.
- Circuit breaker according to one of claims 1 to 3, characterised in that the recess (8) has a collar (12).
- Circuit breaker according to one of claims 1 to 4, characterised in that the recess (8) is stamped out of the flat part.
- Circuit breaker according to one of claims 1 to 5, characterised in that the projection (10) is formed in a single piece out of the flat part.
- Circuit breaker according to one of claims 1 to 6, characterised in that the projection (10) is drawn out of the flat part.
- Circuit breaker according to claim 7, characterised in that the projection (10) is a deep-drawn pot corresponding with the recess (8).
- Circuit breaker according to claim 7 or 8, characterised in that the projection (10) tapers in the direction extending from the flat part.
- Circuit breaker according to one of claims 7 to 9, characterised in that the projection (10) is drawn out of the flat part during the joining of the first connection element (2) to the second connection element (4).
- Circuit breaker according to one of claims 7 to 10, characterised in that after the joining, the projection (10) forms a conical press fit with the recess.
- Circuit breaker according to one of claims 4 to 11, characterised in that a separating member (14) is provided on the first connection element (2), in such a way that the frictional connection between first connection element (2) and second connection element (4) is separable by the separating member (14).
- Circuit breaker according to claim 12, characterised in that a bolt is accelerated in the direction of the projection (10) by means of the separating member (14) in such a way that the frictional connection is separable.
- Method of production of a circuit breaker for motor vehicles, specifically a circuit breaker according to one of claims 1 to 11, by forming a first connection element and forming a second connection element,
characterised by
forming the first and second connection element from an electrically-conductive flat part, forming a recess in the flat part of the first connection element, forming a projection on the flat part of the second connection element corresponding with the recess, and connection of the first connection element with the second connection element by frictional connection of projection and recess. - Method according to claim 14, characterised in that the projection is formed during the joining of the connection elements.
- Method according to claim 14 or 15, characterised in that the projection is formed by deep drawing.
Priority Applications (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05007772A EP1710871B1 (en) | 2005-04-08 | 2005-04-08 | Current separator for the electrical cables in a car |
AT05007772T ATE372598T1 (en) | 2005-04-08 | 2005-04-08 | CIRCUIT BREAKERS FOR ELECTRICAL SUPPLY LINES OF MOTOR VEHICLES |
DE502005001423T DE502005001423D1 (en) | 2005-04-08 | 2005-04-08 | Circuit breaker for electric supply lines of motor vehicles |
PL05007772T PL1710871T3 (en) | 2005-04-08 | 2005-04-08 | Current separator for the electrical cables in a car |
ES05007772T ES2290809T3 (en) | 2005-04-08 | 2005-04-08 | SWITCH FOR ELECTRIC POWER LINES OF MOTOR VEHICLES. |
US11/910,496 US7767921B2 (en) | 2005-04-08 | 2006-03-22 | Circuit breaker for electrical power leads of motor vehicles |
PCT/EP2006/060943 WO2006106042A1 (en) | 2005-04-08 | 2006-03-22 | Circuit breaker for electric supply lines of motor vehicles |
CN200680010772A CN100592577C (en) | 2005-04-08 | 2006-03-22 | Circuit breaker for electric supply lines of motor vehicles |
PT06725662T PT1866945E (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical feeders of motor vehicles |
AT06725662T ATE404986T1 (en) | 2005-04-08 | 2006-04-07 | PASSIVE TRIGGERING OF A CIRCUIT BREAKER FOR MOTOR VEHICLE ELECTRICAL SUPPLY LINES |
DE502006001340T DE502006001340D1 (en) | 2005-04-08 | 2006-04-07 | Passive release of a circuit breaker for electrical supply lines of motor vehicles |
CN2006800107816A CN101283427B (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical supply lines of motor vehicles |
EP06725662A EP1866945B1 (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical feeders of motor vehicles |
DE202006020172U DE202006020172U1 (en) | 2005-04-08 | 2006-04-07 | Passive release of a circuit breaker for electrical supply lines of motor vehicles |
PL06725662T PL1866945T3 (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical feeders of motor vehicles |
PCT/EP2006/061460 WO2006077268A1 (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical feeders of motor vehicles |
US11/910,588 US8154377B2 (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical supply lines of motor vehicles |
ES06725662T ES2312129T3 (en) | 2005-04-08 | 2006-04-07 | PASSIVE ACTIVATION OF A POWER SWITCH FOR ELECTRIC CAR POWER SUPPLY LINES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05007772A EP1710871B1 (en) | 2005-04-08 | 2005-04-08 | Current separator for the electrical cables in a car |
Publications (2)
Publication Number | Publication Date |
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EP1710871A1 EP1710871A1 (en) | 2006-10-11 |
EP1710871B1 true EP1710871B1 (en) | 2007-09-05 |
Family
ID=35432709
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05007772A Active EP1710871B1 (en) | 2005-04-08 | 2005-04-08 | Current separator for the electrical cables in a car |
EP06725662A Not-in-force EP1866945B1 (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical feeders of motor vehicles |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06725662A Not-in-force EP1866945B1 (en) | 2005-04-08 | 2006-04-07 | Passive triggering of a circuit breaker for electrical feeders of motor vehicles |
Country Status (9)
Country | Link |
---|---|
US (2) | US7767921B2 (en) |
EP (2) | EP1710871B1 (en) |
CN (2) | CN100592577C (en) |
AT (2) | ATE372598T1 (en) |
DE (3) | DE502005001423D1 (en) |
ES (2) | ES2290809T3 (en) |
PL (2) | PL1710871T3 (en) |
PT (1) | PT1866945E (en) |
WO (2) | WO2006106042A1 (en) |
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-
2005
- 2005-04-08 AT AT05007772T patent/ATE372598T1/en active
- 2005-04-08 PL PL05007772T patent/PL1710871T3/en unknown
- 2005-04-08 DE DE502005001423T patent/DE502005001423D1/en active Active
- 2005-04-08 ES ES05007772T patent/ES2290809T3/en active Active
- 2005-04-08 EP EP05007772A patent/EP1710871B1/en active Active
-
2006
- 2006-03-22 WO PCT/EP2006/060943 patent/WO2006106042A1/en not_active Application Discontinuation
- 2006-03-22 US US11/910,496 patent/US7767921B2/en active Active
- 2006-03-22 CN CN200680010772A patent/CN100592577C/en active Active
- 2006-04-07 DE DE502006001340T patent/DE502006001340D1/en active Active
- 2006-04-07 EP EP06725662A patent/EP1866945B1/en not_active Not-in-force
- 2006-04-07 US US11/910,588 patent/US8154377B2/en not_active Expired - Fee Related
- 2006-04-07 PT PT06725662T patent/PT1866945E/en unknown
- 2006-04-07 AT AT06725662T patent/ATE404986T1/en active
- 2006-04-07 PL PL06725662T patent/PL1866945T3/en unknown
- 2006-04-07 CN CN2006800107816A patent/CN101283427B/en not_active Expired - Fee Related
- 2006-04-07 ES ES06725662T patent/ES2312129T3/en active Active
- 2006-04-07 WO PCT/EP2006/061460 patent/WO2006077268A1/en active IP Right Grant
- 2006-04-07 DE DE202006020172U patent/DE202006020172U1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US8154377B2 (en) | 2012-04-10 |
US20080197001A1 (en) | 2008-08-21 |
ES2312129T3 (en) | 2009-02-16 |
ATE404986T1 (en) | 2008-08-15 |
PL1866945T3 (en) | 2009-01-30 |
CN101283427A (en) | 2008-10-08 |
CN101151772A (en) | 2008-03-26 |
DE202006020172U1 (en) | 2008-04-17 |
WO2006106042A1 (en) | 2006-10-12 |
EP1866945B1 (en) | 2008-08-13 |
DE502005001423D1 (en) | 2007-10-18 |
CN100592577C (en) | 2010-02-24 |
EP1866945A1 (en) | 2007-12-19 |
CN101283427B (en) | 2012-05-23 |
ES2290809T3 (en) | 2008-02-16 |
EP1710871A1 (en) | 2006-10-11 |
WO2006077268A1 (en) | 2006-07-27 |
US7767921B2 (en) | 2010-08-03 |
DE502006001340D1 (en) | 2008-09-25 |
US20080204184A1 (en) | 2008-08-28 |
PT1866945E (en) | 2008-11-12 |
ATE372598T1 (en) | 2007-09-15 |
PL1710871T3 (en) | 2008-01-31 |
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