DE29613606U1 - Emergency shutdown device for on-board electrical systems - Google Patents
Emergency shutdown device for on-board electrical systemsInfo
- Publication number
- DE29613606U1 DE29613606U1 DE29613606U DE29613606U DE29613606U1 DE 29613606 U1 DE29613606 U1 DE 29613606U1 DE 29613606 U DE29613606 U DE 29613606U DE 29613606 U DE29613606 U DE 29613606U DE 29613606 U1 DE29613606 U1 DE 29613606U1
- Authority
- DE
- Germany
- Prior art keywords
- emergency shutdown
- current path
- shutdown device
- hollow body
- main current
- 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 - Lifetime
Links
- 230000001960 triggered effect Effects 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000002360 explosive Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
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
Landscapes
- Fuses (AREA)
- Battery Mounting, Suspending (AREA)
- Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
- Cookers (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
UOUO::..UOUO::..
1. August 19961 August 1996
NLE-Ma/ro NLE-Ma/ro
BESCHREIBUNGDESCRIPTION
Die Erfindung betrifft eine Notabschaltvorrichtung für Bordstromnetze von Kraftfahrzeugen, insbesondere von Fahrzeugen mit Verbrennungsmotoren.The invention relates to an emergency shutdown device for on-board power systems of motor vehicles, in particular vehicles with combustion engines.
Es sind Sicherheitsvorrichtungen in Kraftfahrzeugen zum Abschalten des Batteriestromes vom Bordnetz bekannt. Bei dieser Sicherheitsvorrichtung in Kraftfahrzeugen wird über einen steuerbaren Sicherheitsschalter zum Abschalten des durch eine Kraftfahrzeugbatterie abgegebenen elektrischen Stromes vom Bordnetz eine Steuereinheit vorgesehen, die ein Signal zur Erkennung eines Anlaßvorganges erfaßt, den aus der Batterie entnommenen Strom ermittelt und den steuerbaren Sicherheitsschalter öffnet, wenn kein Anlaßvorgang vorliegt und der Wert des aus der Batterie entnommenen Stromes größer als ein vorgegebener Kurzschlußgrenzwert ist. Diese und ähnliche Sicherheitseinrichtungen erfüllen ihren Zweck unter normalen Straßenverkehrsbedingungen bzw. beim Abstellen oder Parken der Kraftfahrzeuge. In Unfallsituationen, also während oder nach einem Unfall kann nicht gewährleistet werden, daß eine derartige Sicherheitsvomchtung funktionsfähig ist bzw. bleibt und den Batteriestrom vom Bordnetz trennt. Durch Crashsituationen ausgelöste Kurzschlüsse führen bei Unfällen im Straßenverkehr immer wieder zu Bränden an den Fahrzeugen mit Verbrennungsmotoren, die regelmäßig immer wieder Menschenleben fordern und Sachwerte zerstören. Diese Brände werden zum überwiegenden Teil dadurch ausgelöst, daß durch Verformen der Karrosserie Kurzschlüsse im Bordnetz auftreten und damit Lichtbogen oder erhebliche Temperaturerhöhungen entstehen.Safety devices in motor vehicles for switching off the battery current from the on-board network are known. In this safety device in motor vehicles, a control unit is provided via a controllable safety switch for switching off the electrical current emitted by a motor vehicle battery from the on-board network, which detects a signal to detect a starting process, determines the current drawn from the battery and opens the controllable safety switch if there is no starting process and the value of the current drawn from the battery is greater than a specified short-circuit limit value. These and similar safety devices fulfill their purpose under normal road traffic conditions or when the motor vehicle is parked or shut down. In accident situations, i.e. during or after an accident, it cannot be guaranteed that such a safety device is or remains functional and disconnects the battery current from the on-board network. Short circuits triggered by crash situations repeatedly lead to fires in vehicles with combustion engines in road traffic accidents, which regularly claim human lives and destroy property. These fires are mainly caused by deformation of the bodywork causing short circuits in the vehicle electrical system, resulting in arcing or significant temperature increases.
Ausgehend von diesem Stand der Technik ist es die Aufgabe der Erfindung, diese aus dem Bordstromnetz herrührenden Gefahrenquellen auszuschließen, insbesondere durch Kurzschlüsse im Bordnetz und Lichtbögen auftretende Brände zu vermeiden und damit Menschenleben zu retten und Sachschäden zu minimieren.Based on this state of the art, the object of the invention is to exclude these sources of danger arising from the on-board power system, in particular to avoid fires caused by short circuits in the on-board power system and arcs, and thus to save human lives and minimize material damage.
Erfindungsgemäß wird diese Aufgabis durch eine Notabschaltvorrichtung für Bordstromnetze gelöst, die in Crashsituationen den Stromfluß aus der Batterie ins Bordnetz im Hauptstrompfad explosionsartig unterbrichtAccording to the invention, this task is solved by an emergency shutdown device for on-board power networks, which in crash situations explosively interrupts the flow of current from the battery to the on-board power network in the main current path
Diese explosionsartige Unterbrechimg der Hauptstrombahn erfolgt durch mindestens ein mit einem Sensor, insbesondere einem Crashsensor zusammenwirkende Unterbrechungseinrichtung für den Stomfluß im Kraftfahrzeug, die im Crashfail die Strombahn sofort unterbricht bzw. trennt.This explosive interruption of the main current path is carried out by at least one interruption device for the current flow in the motor vehicle, which interacts with a sensor, in particular a crash sensor, and which immediately interrupts or separates the current path in the event of a crash.
Diese Unterbrechungseinrichtung ist unmittelbar an oder in unmittelbarer Nähe der Batterie im Fahrzeug angeordnet. Die Unterbrechungseinrichtung ist dabei nach Art eines Zündsatzes aufgebaut, welcher in der Hauptstrombahn selbst angeordnet ist. Die Hauptstrombahn ist dazu an mindestens einer Stelle als eine Art Hohlkörper ausgebildet, welche die Unterbrechungseinrichtung in sich aufnimmt. Um den Übergangswiderstand in der Hauptstrombahn zu minimieren, wird diese Verbindung zwischen Batterieanschluß und Bordnetzkabel über diesen Hohlkörper hergestellt, in dessen Innenraum sich der Zündsatz bzw. Sprengsatz befindet. Die als Hohlkörper ausgebildete Strombahn weist in unmittelbarer Umgebung der Unterbrechungseinrichtung mindestens eine Sollbruchstelle auf, die bei Auslösung der Sensoren den Hohlkörper an mindestens einer Stelle so trennen, daß eine nicht reversible Unterbrechung der Strornführung explosionsartig erfolgt. Im Falle eines Aufpralles wird dann der Zünd- oder Spengsatz durch geeignete Sensoren, insbesondere Crashsensoren gezündet und schaltet in Millisekunden durch Unterbrechung bzw. Trennung der Strombahn die Stromzufuhr ab.This interruption device is located directly on or in the immediate vicinity of the battery in the vehicle. The interruption device is designed like an ignition charge, which is located in the main current path itself. The main current path is designed at least at one point as a kind of hollow body, which accommodates the interruption device. In order to minimize the contact resistance in the main current path, this connection between the battery connection and the on-board power cable is made via this hollow body, in the interior of which the ignition charge or explosive device is located. The current path designed as a hollow body has at least one predetermined breaking point in the immediate vicinity of the interruption device, which, when the sensors are triggered, separates the hollow body at at least one point in such a way that an irreversible interruption of the current flow occurs explosively. In the event of an impact, the ignition or explosive device is then ignited by suitable sensors, in particular crash sensors, and switches off the power supply in milliseconds by interrupting or separating the current path.
Die explosionsartige Trennung der Strombahn in unmittelbarer Umgebung der Unterbrechungseinrichtung kann auch durch eine Art Steckverbindung realisiert werden. Die als Hohlkörper ausgebildete Strombahn weist dazu eine Art Steckverbindung auf, die bei Auslösen der Sensoren explosionsartig Stecker und Kupplung voneinander löst und dadurch den Hohlkörper an mindestens einer Stelle reversibel voneinander trennt. Der die Unterbrechungseinrichtung aufnehmende Hohlkörper kann aus verschiedenen nicht elektrisch leitfähigen Materialien ausgebildet sein. Um der Entstehung von Lichtbogen und Funkenbildung entgegenzuwirken, ist die Notabschaltvorrichtung von einer Hülle aus nichtleitendem Material, beispielsweise Kunststoff umgeben. Diese die Notabschaltvorrichtung umgebene Hülle bzw. ein entsprechendes Gehäuse ist dabei so ausgebildet, daß ungehindert ein Druckausgleich der durch den Zündsatz bzw. der durch die explosionsartige Trennung der Strombahn freiwerdenden Energie stattfinden kann, ohne das Gehäuse in unbeabsichtigter Art und Weise zu zerstören.The explosive separation of the current path in the immediate vicinity of the interruption device can also be achieved by means of a type of plug connection. The current path, which is designed as a hollow body, has a type of plug connection which, when the sensors are triggered, explosively separates the plug and coupling from one another and thereby reversibly separates the hollow body from one another at least in one place. The hollow body containing the interruption device can be made of various non-electrically conductive materials. In order to counteract the formation of arcs and sparks, the emergency shutdown device is surrounded by a casing made of non-conductive material, for example plastic. This casing surrounding the emergency shutdown device or a corresponding housing is designed in such a way that pressure equalization of the energy released by the ignition charge or by the explosive separation of the current path can take place without hindrance, without inadvertently destroying the housing.
Die Erfindung ist nachfolgend an einem Ausfuhrungsbeispiel näher erläutert.The invention is explained in more detail below using an exemplary embodiment.
In unmittelbarer Nähe der Kraftfahrzeugbatterie die den Bordstromkreis speist, wird vor dem ersten Verbraucher und vor der Zuführung zum zentralen Sicherungselement im Kraftfahrzeug die Unterbrechungseinrichtung angeordnet. Die Hauptstrombahn ist an dieser Stelle von einem Hohlkörper mit einer Sollbruchstelle umgeben. Im Hohlkörper ist die mit einem Crashsensor gekoppelte Unterbrechungseinrichtung angeordnet. Die UnterbrechungseinrichtungThe interruption device is arranged in the immediate vicinity of the vehicle battery that supplies the on-board circuit, in front of the first consumer and in front of the feed to the central safety element in the vehicle. The main current path is surrounded at this point by a hollow body with a predetermined breaking point. The interruption device, which is coupled to a crash sensor, is arranged in the hollow body. The interruption device
weist einen integrierten Zündsatz auf, der Signale des Crashsensores erfaßt. Im Crashfall liefert der Crashsensor ein Signal an den Zündsatz in der Unterbrechungseinrichtung und trennt explosionsartig den Hohlkörper an der Sollbruchstelle so voneinander, daß die Hauptstromführung von der Batterie zum Verbraucher- bzw, zum Sicherungselement innerhalb weniger Millisekunden unterbrochen ist bzw. die Hauptstrombahn so durchtrennt ist.has an integrated ignition device that detects signals from the crash sensor. In the event of a crash, the crash sensor sends a signal to the ignition device in the interruption device and separates the hollow body at the predetermined breaking point in an explosive manner so that the main current flow from the battery to the consumer or safety element is interrupted within a few milliseconds or the main current path is severed.
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29613606U DE29613606U1 (en) | 1996-08-06 | 1996-08-06 | Emergency shutdown device for on-board electrical systems |
| EP97113514A EP0825068A1 (en) | 1996-08-06 | 1997-08-05 | Emergency circuit breaker for vehicle electric networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29613606U DE29613606U1 (en) | 1996-08-06 | 1996-08-06 | Emergency shutdown device for on-board electrical systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29613606U1 true DE29613606U1 (en) | 1996-10-17 |
Family
ID=8027486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29613606U Expired - Lifetime DE29613606U1 (en) | 1996-08-06 | 1996-08-06 | Emergency shutdown device for on-board electrical systems |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0825068A1 (en) |
| DE (1) | DE29613606U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10105664A1 (en) * | 1999-08-02 | 2002-09-19 | Yazaki Corp | Circuit interrupting device for motor vehicle, diagnoses correctness of path through which diagnostic signal from exterior is input to circuit breaker via switch element |
| DE10214789A1 (en) * | 2002-04-04 | 2003-10-16 | Volkswagen Ag | Restriction of the driver's view on display devices |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19854953C1 (en) | 1998-11-27 | 2000-09-21 | Volkswagen Ag | Battery on-board network with safety shutdown |
| DE102005029076B4 (en) * | 2005-06-23 | 2020-02-06 | Bayerische Motoren Werke Aktiengesellschaft | Electrical safety devices for motor vehicles |
| EP1777147A1 (en) | 2005-10-18 | 2007-04-25 | Alcan Technology & Management Ltd. | Stiffening element |
| US11070049B2 (en) | 2017-11-08 | 2021-07-20 | Eaton Intelligent Power Limited | System, method, and apparatus for power distribution in an electric mobile application using a combined breaker and relay |
| CN111448731B (en) | 2017-11-08 | 2023-06-30 | 伊顿智能动力有限公司 | Power distribution unit and fuse management for electric mobile applications |
| GB2585325A (en) | 2018-11-02 | 2021-01-13 | Eaton Intelligent Power Ltd | De-energizing of a vehicle for a rescue activity |
| US11670937B2 (en) | 2019-02-22 | 2023-06-06 | Eaton Intelligent Power Limited | Coolant connector having a chamfered lip and fir tree axially aligned with at least one o-ring |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2135602T3 (en) * | 1994-02-01 | 1999-11-01 | Bayerische Motoren Werke Ag | ELECTRIC SAFETY SWITCH FOR AUTOMOBILE VEHICLES. |
| DE4406730A1 (en) * | 1994-03-02 | 1995-09-14 | Bayern Chemie Gmbh Flugchemie | Emergency current supply interruption device in motor vehicle |
| DE19503809B4 (en) * | 1995-02-06 | 2005-01-20 | Bayerische Motoren Werke Ag | Safety device for a power line in vehicles |
-
1996
- 1996-08-06 DE DE29613606U patent/DE29613606U1/en not_active Expired - Lifetime
-
1997
- 1997-08-05 EP EP97113514A patent/EP0825068A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10105664A1 (en) * | 1999-08-02 | 2002-09-19 | Yazaki Corp | Circuit interrupting device for motor vehicle, diagnoses correctness of path through which diagnostic signal from exterior is input to circuit breaker via switch element |
| DE10214789A1 (en) * | 2002-04-04 | 2003-10-16 | Volkswagen Ag | Restriction of the driver's view on display devices |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0825068A1 (en) | 1998-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19961128 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 20000601 |