WO1993005399A1 - Drop-sensitive sensor, especially for triggering protective devices in motor vehicles - Google Patents

Drop-sensitive sensor, especially for triggering protective devices in motor vehicles Download PDF

Info

Publication number
WO1993005399A1
WO1993005399A1 PCT/DE1992/000686 DE9200686W WO9305399A1 WO 1993005399 A1 WO1993005399 A1 WO 1993005399A1 DE 9200686 W DE9200686 W DE 9200686W WO 9305399 A1 WO9305399 A1 WO 9305399A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging
sensor
sensor according
housing
motor vehicles
Prior art date
Application number
PCT/DE1992/000686
Other languages
German (de)
French (fr)
Inventor
Harry Kaiser
Rainer Willig
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO1993005399A1 publication Critical patent/WO1993005399A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/105—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by magnetically sensitive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/02—Housings
    • G01P1/023—Housings for acceleration measuring devices

Definitions

  • Fall-sensitive sensor in particular for triggering protective devices in motor vehicles
  • the invention is based on a sensor for automatically triggering occupant protection devices in motor vehicles according to the preamble of the main claim.
  • sensors are case sensitive, but they must be installed in the functional state in the motor vehicle to be monitored.
  • sensors are currently packaged in protective packaging, for example a folding box, in the manufacturer's factory and are thus delivered to the customer. There the sensor is removed from the packaging and attached to the motor vehicle. After the sensor has been removed from the packaging and until it is installed in the motor vehicle, it can fall onto the floor, so that damage can occur inside the housing of the sensor. This damage can impair the functionality of the sensor completely or partially, but cannot be seen from the outside of the sensor. After installation in the motor vehicle, the sensor can only be checked by pivoting it with the entire motor vehicle on a rocker. This type of check is very expensive and time-consuming.
  • the sensor according to the invention with the features of the main claim has the advantage that a high-quality sensor in a functional state can be installed in the motor vehicle at only a small additional cost for the packaging. No additional checking measures are necessary after installation. After the sensor has been checked for functionality in the final inspection by the manufacturer, no additional inspection by the end user before or after the sensor is installed in the motor vehicle is necessary. If the sensor falls on the floor, it is protected by the damping properties of the packaging. The measuring elements arranged in the housing of the sensor cannot suffer any damage as a result, so that the measuring accuracy is not impaired. This type of packaging of the sensor ensures that functional sensors are installed in the motor vehicle.
  • FIG. 1 shows a perspective illustration of a sensor arranged in a package
  • FIG. 2 shows a plan view
  • FIG. 3 shows a longitudinal section through a sensor. Description of the embodiment
  • 10 denotes the housing of a sensor 11 for triggering occupant protection devices, such as belt tensioners, airbags, hazard warning lights, or roll bars in motor vehicles, which is surrounded by a package 30 in a form-fitting manner.
  • occupant protection devices such as belt tensioners, airbags, hazard warning lights, or roll bars in motor vehicles, which is surrounded by a package 30 in a form-fitting manner.
  • the invention is also applicable to other fall sensitive sensors such as e.g. ABS (anti-lock braking system) and ASR (traction control system) can be used.
  • Any acceleration sensor which works according to various measuring principles and is obtainable in practice can be used as the sensor 11.
  • These sensors all have a seismic mass, the deflection of which triggers a measurement signal in a recording element.
  • the sensors described in DE-OS 40 33 885.1 or in DE-GM 89 09 177.9 can be used, the sensor according to DE-GM 89 09 177.9 being shown in FIGS. 3 and 4.
  • a web 14 extends from the base plate 12 at a right angle, to which a leaf spring 15 is attached, in particular by spot welding.
  • the leaf spring 15 is arranged upright parallel to the base plate 12 and has a lower edge which runs approximately parallel to the base plate 12 and an upper edge which runs obliquely downwards, so that an extension 16 is located at the free end of the leaf spring 15.
  • any other form of leaf spring is also conceivable. In the form of the leaf spring 15 shown here, rotation of the leaf spring 15 about its longitudinal axis is prevented.
  • a permanent magnet 18, 19 is fastened on each of the two broad sides of the extension 16 with the aid of an adhesive connection.
  • the magnetic polarity of the two permanent magnets 18, 19 is directed in the opposite direction and parallel to the surface of the leaf spring 15.
  • a Hall sensor 20 is fastened on the base plate 12 opposite the permanent magnets 18, 19. Furthermore, an eddy current disk is at the free end of the leaf spring 15
  • the eddy current disk 22 is arranged, which is approximately rectangular and extends horizontally lying across the leaf spring 15.
  • the eddy current disk 22 is immersed in a cage-shaped flow guide 23, which is preferably made of a soft magnetic material.
  • Two cuboid brake magnets 24 are arranged at a distance from one another in the flux guide piece 23, which extend to the eddy current disk 22 but do not touch it.
  • the packaging 30 surrounds the housing 10 of the sensor 11 in such a way that the sensor 11 does not suffer any damage if it falls onto the floor from a height of approximately 0.5 meters or approximately 1 meter. The respective amount depends on the demands of the customers.
  • the packaging 30 therefore consists of an elastic, foamed plastic which largely compensates for all forces acting on the sensor 11 in the event of an impact, so that these forces cannot act on the components of the sensor 11.
  • Foamed polyethylene is particularly suitable as the material for the packaging 30.
  • its shape is also important for the compensation of the acting forces.
  • the packaging 30 shown in FIG. 1 has a recess 31 in which the housing 10 of the sensor 11 is arranged such that the plug 32 of the sensor 11 protrudes from the recess 31.
  • a window 33 is formed in the area of the recess 31 in the packaging 30, so that the inscription 34 of the housing 10 of the sensor 11 is visible.
  • the housing 10 is glued into the recess 31 or with a press fit arranged.
  • the housing 10 can also be installed in a form-liquid manner in the packaging 30 during the spraying process of the packaging 30.
  • the packaging 30 has two extensions 36, which serve to protect the plug 32, so that the plug contacts 37 cannot be bent when they fall.
  • the extensions 36 are formed with such a large distance from the plug 32 that there is sufficient space for the mating contact of the plug 32, not shown.
  • the housing 10 has fastening tabs 40 with which the sensor 11 can be fastened to the motor vehicle.
  • the packaging 30 is made in one piece.
  • a two-part or multi-part design of the packaging would also be conceivable, with a two-part design of the packaging, the two parts can be assembled and possibly glued after inserting the housing 10 of the sensor 11.
  • the housing 10 of the sensor 11 is surrounded by a protective packaging 30 with which the sensor 10 is also attached to the motor vehicle.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Buffer Packaging (AREA)

Abstract

The housing (1) of a sensor (11) for triggering passenger protection devices in motor vehicles is fitted snugly in a protective package (30). The package (30) is made, for instance, of polyethylene foam so that it compensates for the forces arising when the sensor (11) falls on the floor. It is thus possible for the efficient sensors (11) to be fitted in the vehicle at the final consumer's premises.

Description

Fallempfindlicher Sensor, insbesondere zum Auslösen von Schutzvorrichtungen in KraftfahrzeugenFall-sensitive sensor, in particular for triggering protective devices in motor vehicles
Stand der TechnikState of the art
Die Erfindung geht aus von einem Sensor zum selbsttätigen Auslösen von Insassenschutzvorrichtungen in Kraftfahrzeugen nach der Gattung des Hauptanspruchs. Derartige Sensoren sind fallempfindlich, sie müssen aber im funktionstüchtigen Zustand in das zu überwachende Kraftfahrzeug eingebaut werden. In der Praxis werden derzeit Senso¬ ren im Werk des Herstellers in eine schützende Verpackung, zum Bei¬ spiel einen Faltkarton, eingepackt und so zum Kunden geliefert. Dort wird der Sensor aus der Verpackung entnommen und am Kraftfahrzeug befestigt. Nachdem der Sensor aus der Verpackung entnommen ist und bis er im Kraftfahrzeug eingebaut ist, kann er auf den Boden fallen, so daß Beschädigungen im Inneren des Gehäuses des Sensors auftreten können. Diese Beschädigungen können die Funktionsfähigkeit des Sen¬ sors völlig oder teilweise beeinträchtigen, sind aber von außen dem Sensor nicht ansehbar. Nach der Montage im Kraftfahrzeug kann der Sensor nur noch überprüft werden, indem er mit dem gesamten Kraft¬ fahrzeug auf einer Wippe geschwenkt wird. Diese Art der Überprüfung ist sehr teuer und aufwendig. Vorteile der ErfindungThe invention is based on a sensor for automatically triggering occupant protection devices in motor vehicles according to the preamble of the main claim. Such sensors are case sensitive, but they must be installed in the functional state in the motor vehicle to be monitored. In practice, sensors are currently packaged in protective packaging, for example a folding box, in the manufacturer's factory and are thus delivered to the customer. There the sensor is removed from the packaging and attached to the motor vehicle. After the sensor has been removed from the packaging and until it is installed in the motor vehicle, it can fall onto the floor, so that damage can occur inside the housing of the sensor. This damage can impair the functionality of the sensor completely or partially, but cannot be seen from the outside of the sensor. After installation in the motor vehicle, the sensor can only be checked by pivoting it with the entire motor vehicle on a rocker. This type of check is very expensive and time-consuming. Advantages of the invention
Der erfindungsgemäße Sensor mit den Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß bei nur geringen Mehrkosten für die Verpackung ein hochwertiger Sensor im funktionsfähigen Zustand in das Kraftfahrzeug eingebaut werden kann. Es sind nach dem Einbau keine zusätzlichen Überprüfungεmaßnahmen mehr notwendig. Nachdem der Sensor beim Hersteller in der Endkontrolle auf seine Funk ionsfähig- keit überprüft wurde, ist keine zusätzliche Überprüfung beim Endab¬ nehmer vor oder nach der Montage des Sensors in das Kraftfahrzeug mehr notwendig. Falls der Sensor auf den Boden fallen würde, ist er durch die dämpfenden Eigenschaften der Verpackung geschützt. Die im Gehäuse des Sensors angeordneten Meßelemente können dadurch keinen Schaden erleiden, so daß die Meßgenauigkeit nicht verschlechtert wird. Durch diese Art der Verpackung des Sensors wird ein Einbau von funktionsfähigen Sensoren in das Kraftfahrzeug gewährleistet.The sensor according to the invention with the features of the main claim has the advantage that a high-quality sensor in a functional state can be installed in the motor vehicle at only a small additional cost for the packaging. No additional checking measures are necessary after installation. After the sensor has been checked for functionality in the final inspection by the manufacturer, no additional inspection by the end user before or after the sensor is installed in the motor vehicle is necessary. If the sensor falls on the floor, it is protected by the damping properties of the packaging. The measuring elements arranged in the housing of the sensor cannot suffer any damage as a result, so that the measuring accuracy is not impaired. This type of packaging of the sensor ensures that functional sensors are installed in the motor vehicle.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vor¬ teilhafte Weiterbildungen des im Anspruch 1 angegebenen Sensors mög¬ lich.The measures listed in the subclaims make advantageous developments of the sensor specified in claim 1 possible.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung darge¬ stellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen die Figur 1 eine perspektivische Darstellung eines in einer Verpackung angeordneten Sensors, die Figur 2 eine Draufsicht und die Figur 3 einen Längsschnitt durch einen Sensor. Beschreibung des AusführungsbeispielesAn embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows a perspective illustration of a sensor arranged in a package, FIG. 2 shows a plan view and FIG. 3 shows a longitudinal section through a sensor. Description of the embodiment
In der Figur 1 ist mit 10 das Gehäuse eines Sensors 11 zum Auslösen von Insassenschutzvorrichtung, wie zum Beispiel Gurtstraffer, Air- bag, Warnblinkanlagen, oder Überrollbügel in Kraftfahrzeugen be¬ zeichnet, das formflüssig von einer Verpackung 30 umgeben ist. Die Erfindung ist auch für sonstige fallempfindliche Sensoren wie z.B. ABS (Anti-Blockier-System) und ASR (Antriebsschlupfregelung) anwend¬ bar. Als Sensor 11 kann jeder nach verschiedenen Meßprinzipien ar¬ beitender und in der Praxis erhältlicher Beschleunigungssensor ver¬ wendet werden. Diese Sensoren weisen alle eine seismische Masse auf, deren Auslenkung in einem Aufnahmeelement ein Meßsignal auslöst. Beispielsweise können die in der DE-OS 40 33 885.1 beziehungsweise in dem DE-GM 89 09 177.9 beschriebenen Sensoren verwendet werden, wobei in den Figuren 3 und 4 der Sensor nach dem DE-GM 89 09 177.9 dargestellt ist. Im Innern des Gehäuses 10 ist eine Grundplatte mit einer darauf in Dickschicht- oder Dünnschichttechnik aufgebrachten Auswerteelektronik 13 für den Sensor 11 angeordnet. Von der Grund¬ platte 12 erstreckt sich unter einem rechten Winkel ein Steg 14 nach oben, an dem insbesondere durch Punktschweißen eine Blattfeder 15 befestigt ist. Die Blattfeder 15 ist hochkant parallel zur Grund¬ platte 12 angeordnet und weist eine etwa parallel zur Grundplatte 12 verlaufende Unterkante und eine schräg nach unten verlaufende Ober¬ kante auf, so daß sich am freien Ende der Blattfeder 15 ein Fort¬ satz 16 befindet. Es ist aber auch jede andere Form der Blattfeder denkbar. Bei der hier dargestellten Form der Blattfeder 15 wird ein Verdrehen der Blattfeder 15 um ihre Längsachse verhindert.In FIG. 1, 10 denotes the housing of a sensor 11 for triggering occupant protection devices, such as belt tensioners, airbags, hazard warning lights, or roll bars in motor vehicles, which is surrounded by a package 30 in a form-fitting manner. The invention is also applicable to other fall sensitive sensors such as e.g. ABS (anti-lock braking system) and ASR (traction control system) can be used. Any acceleration sensor which works according to various measuring principles and is obtainable in practice can be used as the sensor 11. These sensors all have a seismic mass, the deflection of which triggers a measurement signal in a recording element. For example, the sensors described in DE-OS 40 33 885.1 or in DE-GM 89 09 177.9 can be used, the sensor according to DE-GM 89 09 177.9 being shown in FIGS. 3 and 4. Arranged in the interior of the housing 10 is a base plate with evaluation electronics 13 for the sensor 11 applied thereon using thick-film or thin-film technology. A web 14 extends from the base plate 12 at a right angle, to which a leaf spring 15 is attached, in particular by spot welding. The leaf spring 15 is arranged upright parallel to the base plate 12 and has a lower edge which runs approximately parallel to the base plate 12 and an upper edge which runs obliquely downwards, so that an extension 16 is located at the free end of the leaf spring 15. However, any other form of leaf spring is also conceivable. In the form of the leaf spring 15 shown here, rotation of the leaf spring 15 about its longitudinal axis is prevented.
Auf den beiden Breitseiten des Fortsatzes 16 ist je ein Permanent¬ magnet 18, 19 mit Hilfe einer Klebeverbindung befestigt. Die magne¬ tische Polarität der beiden Permanentmagneten 18, 19 ist entgegenge¬ richtet und parallel zur Oberfläche der Blattfeder 15. Den Perma¬ nentmagneten 18, 19 gegenüber ist auf der Grundplatte 12 ein Hall¬ sensor 20 befestigt. Ferner ist am freien Ende der Blattfeder 15 eine WirbelstromscheibeA permanent magnet 18, 19 is fastened on each of the two broad sides of the extension 16 with the aid of an adhesive connection. The magnetic polarity of the two permanent magnets 18, 19 is directed in the opposite direction and parallel to the surface of the leaf spring 15. A Hall sensor 20 is fastened on the base plate 12 opposite the permanent magnets 18, 19. Furthermore, an eddy current disk is at the free end of the leaf spring 15
22 angeordnet, die etwa rechteckförmig ausgebildet ist und sich waagerecht liegend quer zur Blattfeder 15 erstreckt. Die Wirbel¬ stromscheibe 22 taucht in ein käfigförmiges Flußleitstück 23 ein, das vorzugsweise aus weich magnetischem Werkstoff besteht. In dem Flußleitstück 23 sind im Abstand zueinander zwei quaderförmige Bremsmagnete 24 angeordnet, die sich zur Wirbelstromscheibe 22 er¬ strecken, diese aber nicht berühren. Die Breite des Flußleitstücks22 is arranged, which is approximately rectangular and extends horizontally lying across the leaf spring 15. The eddy current disk 22 is immersed in a cage-shaped flow guide 23, which is preferably made of a soft magnetic material. Two cuboid brake magnets 24 are arranged at a distance from one another in the flux guide piece 23, which extend to the eddy current disk 22 but do not touch it. The width of the flow guide
23 ist einiges größer als die Breite der Wirbelstromscheibe 22, so daß diese ohne Schwierigkeit im Flußleitstück 23 hin- und herschwin¬ gen kann. Es ist aber auch möglich, die Permanentmagnete 18, 19 so anzuordnen, daß sie gleichzeitig auch als Bremsmagnete dienen kön¬ nen. In der Figur 2 sind die zwischen den Polen der beiden Perma¬ nentmagnete 18, 19 verlaufenden Magnetfeldlinien 27 eingezeichnet.23 is somewhat larger than the width of the eddy current disk 22, so that it can swing back and forth in the flow guide piece 23 without difficulty. However, it is also possible to arrange the permanent magnets 18, 19 in such a way that they can also serve as brake magnets at the same time. 2 shows the magnetic field lines 27 running between the poles of the two permanent magnets 18, 19.
Die Verpackung 30 umgibt das Gehäuse 10 des Sensors 11 so, daß der Sensor 11 bei einem Fall auf den Boden aus ca. 0,5 Meter oder auch ca. 1 Meter Höhe keinen Schaden erleidet. Die jeweilige Höhe ist ab¬ hängig von den Forderungen der Kunden. Die Verpackung 30 besteht deshalb aus einem elastischen, geschäumten Kunststoff, der alle bei einem Aufprall auf den Sensor 11 einwirkenden Kräfte weitgehend kom¬ pensiert, so daß diese Kräfte nicht auf die Bauteile des Sensors 11 einwirken können. Als Werkstoff für die Verpackung 30 eignet sich hierbei insbesondere geschäumtes Polyäthylen. Neben dem Material für die Verpackung 30 ist aber auch deren Form für die Kompensation der einwirkenden Kräfte wichtig. Die in der Figur 1 dargestellte Ver¬ packung 30 weist eine Ausnehmung 31 auf, in der das Gehäuse 10 des Sensors 11 so angeordnet ist, daß der Stecker 32 des Sensors 11 aus der Ausnehmung 31 herausragt. Ferner ist im Bereich der Ausnehmung 31 in der Verpackung 30 ein Fenster 33 ausgebildet, so daß die Be¬ schriftung 34 des Gehäuses 10 des Sensors 11 sichtbar ist. In der Ausnehmung 31 ist das Gehäuse 10 eingeklebt oder mit einem Preßsitz angeordnet. Es kann aber das Gehäuse 10 auch bereits beim Spritz¬ vorgang der Verpackung 30 in die Verpackung 30 formflüssig eingebaut werden. Im Bereich des Steckers 32 weist die Verpackung 30 zwei Fortsätze 36 auf, die zum Schutz des Steckers 32 dienen, so daß beim Herabfallen die Steckerkontakte 37 nicht verbogen werden können. Ferner sind die Fortsätze 36 mit einem so großen Abstand vom Stecker 32 ausgebildet, so daß genügend Freiraum für den nicht dargestellten Gegenkontakt des Steckers 32 gegeben ist. Zum Abfedern der Ver¬ packung 30 beim Herabfallen sind jeweils auf der Ober- bzw. Unter¬ seite der Verpackung 30 in den Eckbereichen Erhebungen 38 ausgebil¬ det. Wie aus der Figur 2 ferner ersichtlich ist, weist das Gehäuse 10 Befestigungslaschen 40 auf, mit denen der Sensor 11 am Kraftfahr¬ zeug befestigt werden kann. Um eine einfache Befestigung zu ermög¬ lichen, sind hierzu im Bereich der Laschen 40 in der Verpackung 30 Ausnehmungen 41 vorhanden, so daß die Laschen 40 für den Monteuer mit den Befestigungswerkzeugen frei zugänglich sind.The packaging 30 surrounds the housing 10 of the sensor 11 in such a way that the sensor 11 does not suffer any damage if it falls onto the floor from a height of approximately 0.5 meters or approximately 1 meter. The respective amount depends on the demands of the customers. The packaging 30 therefore consists of an elastic, foamed plastic which largely compensates for all forces acting on the sensor 11 in the event of an impact, so that these forces cannot act on the components of the sensor 11. Foamed polyethylene is particularly suitable as the material for the packaging 30. In addition to the material for the packaging 30, its shape is also important for the compensation of the acting forces. The packaging 30 shown in FIG. 1 has a recess 31 in which the housing 10 of the sensor 11 is arranged such that the plug 32 of the sensor 11 protrudes from the recess 31. Furthermore, a window 33 is formed in the area of the recess 31 in the packaging 30, so that the inscription 34 of the housing 10 of the sensor 11 is visible. The housing 10 is glued into the recess 31 or with a press fit arranged. However, the housing 10 can also be installed in a form-liquid manner in the packaging 30 during the spraying process of the packaging 30. In the area of the plug 32, the packaging 30 has two extensions 36, which serve to protect the plug 32, so that the plug contacts 37 cannot be bent when they fall. Furthermore, the extensions 36 are formed with such a large distance from the plug 32 that there is sufficient space for the mating contact of the plug 32, not shown. In order to cushion the packaging 30 when it falls down, elevations 38 are formed in each case on the upper or lower side of the packaging 30 in the corner regions. As can also be seen from FIG. 2, the housing 10 has fastening tabs 40 with which the sensor 11 can be fastened to the motor vehicle. In order to enable simple fastening, there are recesses 41 in the area of the flaps 40 in the packaging 30 so that the flaps 40 are freely accessible to the mechanic with the fastening tools.
In den Figuren ist die Verpackung 30 einteilig ausgebildet. Selbst¬ verständlich wäre auch eine zwei- oder mehrteilige Ausbildung der Verpackung denkbar, wobei bei einer zweiteiligen Ausbildung der Verpackung die beiden Teile nach dem Einsetzen des Gehäuses 10 des Sensors 11 zusammengesetzt und eventuell verklebt werden können.In the figures, the packaging 30 is made in one piece. Of course, a two-part or multi-part design of the packaging would also be conceivable, with a two-part design of the packaging, the two parts can be assembled and possibly glued after inserting the housing 10 of the sensor 11.
Erfindungswesentlich ist, daß das Gehäuse 10 des Sensors 11 mit einer schützenden Verpackung 30 umgeben ist, mit der der Sensor 10 auch am Kraftfahrzeug befestigt wird. It is essential to the invention that the housing 10 of the sensor 11 is surrounded by a protective packaging 30 with which the sensor 10 is also attached to the motor vehicle.

Claims

Ansprüche Expectations
1. Fallempfindlicher Sensor, insbesondere zum Auslösen von Schutzvorrichtungen in Kraftfahrzeugen, mit einem Gehäuse (10), in dem sich eine seismische Masse (18,19) und ein Aufnahmeelement (20) zur Erzeugung eines Meßsignals befindet, wobei das Gehäuse (10) mindestens teilweise eine formschlüssige Verbindung mit einer Verpackung (30) aufweist und wobei die Verpackung (30) aus elastischem, Stöße kompensierendem Material besteht.1. Fall-sensitive sensor, in particular for triggering protective devices in motor vehicles, with a housing (10) in which there is a seismic mass (18, 19) and a receiving element (20) for generating a measurement signal, the housing (10) at least partially has a positive connection with a packaging (30) and the packaging (30) consists of elastic, shock-absorbing material.
2. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß die Verpackung (30) aus einem geschäumten Kunststoff besteht.2. Sensor according to claim 1, characterized in that the packaging (30) consists of a foamed plastic.
3. Sensor nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die Verpackung (30) aus geschäumtem Polyäthylen besteht.3. Sensor according to claim 1 and / or 2, characterized in that the packaging (30) consists of foamed polyethylene.
4. Sensor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß am Gehäuse (10) ein Stecker (32) angeordnet ist, der mit Hilfe von Fortsätzen (36) der Verpackung (30) geschützt ist.4. Sensor according to one of claims 1 to 3, characterized in that a plug (32) is arranged on the housing (10), which is protected with the aid of extensions (36) of the packaging (30).
5. Sensor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Verpackung (30) mehrere Erhebungen (38) aufweist. 5. Sensor according to one of claims 1 to 4, characterized in that the packaging (30) has a plurality of elevations (38).
6. Sensor nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Verpackung (30) einteilig ausgebildet ist.6. Sensor according to one of claims 1 to 5, characterized in that the packaging (30) is formed in one piece.
7. Sensor nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Verpackung (30) mehrteilig ausgebildet ist.7. Sensor according to one of claims 1 to 5, characterized in that the packaging (30) is made in several parts.
8. Sensor nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß am Gehäuse (10) Befestigungslaschen (40) ausgebildet sind, und daß die Verpackung (30) im Bereich der Lasche (40) Ausnehmungen (41) aufweist.8. Sensor according to one of claims 1 to 7, characterized in that on the housing (10) mounting tabs (40) are formed, and that the packaging (30) in the area of the tab (40) has recesses (41).
9. Sensor nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Verpackung (30) flanschartige Fortsätze aufweist, mit denen die Verpackung (30) am Kraftfahrzeug befestigt ist. 9. Sensor according to one of claims 1 to 8, characterized in that the packaging (30) has flange-like extensions with which the packaging (30) is attached to the motor vehicle.
PCT/DE1992/000686 1991-09-07 1992-08-17 Drop-sensitive sensor, especially for triggering protective devices in motor vehicles WO1993005399A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9111106U DE9111106U1 (en) 1991-09-07 1991-09-07 Sensor for automatically triggering occupant protection devices in motor vehicles
DEG9111106.4U 1991-09-07

Publications (1)

Publication Number Publication Date
WO1993005399A1 true WO1993005399A1 (en) 1993-03-18

Family

ID=6871016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1992/000686 WO1993005399A1 (en) 1991-09-07 1992-08-17 Drop-sensitive sensor, especially for triggering protective devices in motor vehicles

Country Status (2)

Country Link
DE (1) DE9111106U1 (en)
WO (1) WO1993005399A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009488A1 (en) * 1996-08-29 1998-03-05 Robert Bosch Gmbh Electric actuator casing comprising fall sensitive elements, especially one or more sensors intended for triggering protective devices inside vehicules
DE10131611C1 (en) * 2001-06-29 2003-01-23 Siemens Ag Forming external shape of electronic device, especially mobile communications device, involves filling holder chamber with deformable medium, deforming to predetermined shape
DE102008042972A1 (en) * 2008-10-20 2010-04-22 Endress + Hauser Flowtec Ag Measuring device for determining and monitoring chemical and physical measured variable, is based on process automation technology, and has housing, which is provided with two walls
US9229021B2 (en) 2011-04-20 2016-01-05 Endress + Hauser Flowtec Ag Measuring device with a multi-walled housing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4343135A1 (en) * 1993-12-17 1995-06-22 Bosch Gmbh Robert Yaw rate sensor
DE19633727C1 (en) 1996-08-21 1997-09-18 Siemens Ag Electrical component e.g. automobile relay and switch-relay for FAO
DE19738803B4 (en) 1997-09-05 2018-05-24 Robert Bosch Gmbh Housing for a device, in particular sensor for motor vehicles
DE102004024523B3 (en) 2004-05-18 2005-11-24 Dr.Ing.H.C. F. Porsche Ag Transport protection for cable ends on spring struts

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1561110A (en) * 1977-12-02 1980-02-13 Probe Eng Co Ltd Grain detection apparatus
GB2084330A (en) * 1980-09-22 1982-04-07 Sundstrand Data Control Protection of Accelerometers Against Impact
DE8909177U1 (en) * 1989-07-28 1990-11-29 Robert Bosch Gmbh, 70469 Stuttgart Accelerometer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1561110A (en) * 1977-12-02 1980-02-13 Probe Eng Co Ltd Grain detection apparatus
GB2084330A (en) * 1980-09-22 1982-04-07 Sundstrand Data Control Protection of Accelerometers Against Impact
DE8909177U1 (en) * 1989-07-28 1990-11-29 Robert Bosch Gmbh, 70469 Stuttgart Accelerometer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009488A1 (en) * 1996-08-29 1998-03-05 Robert Bosch Gmbh Electric actuator casing comprising fall sensitive elements, especially one or more sensors intended for triggering protective devices inside vehicules
US6364144B1 (en) 1996-08-29 2002-04-02 Robert Bosch Gmbh Electric actuator casing comprising fall sensitive elements, especially one or more sensors intended for triggering protective device inside vehicles
DE10131611C1 (en) * 2001-06-29 2003-01-23 Siemens Ag Forming external shape of electronic device, especially mobile communications device, involves filling holder chamber with deformable medium, deforming to predetermined shape
DE102008042972A1 (en) * 2008-10-20 2010-04-22 Endress + Hauser Flowtec Ag Measuring device for determining and monitoring chemical and physical measured variable, is based on process automation technology, and has housing, which is provided with two walls
US9229021B2 (en) 2011-04-20 2016-01-05 Endress + Hauser Flowtec Ag Measuring device with a multi-walled housing

Also Published As

Publication number Publication date
DE9111106U1 (en) 1993-01-07

Similar Documents

Publication Publication Date Title
DE60110549T2 (en) FUEL SENSOR FOR A BELT
DE102017128266A1 (en) Method and device for detecting the displacement position of a vehicle seat
DE3728382C2 (en)
DE69402594T2 (en) Method and device for restraining an occupant during a side impact
EP0790483B1 (en) Tilt sensor
DE4201822A1 (en) SYSTEM FOR DETECTING A SIDE SHOCK ON A MOTOR VEHICLE
EP0305655A2 (en) Triggering device for a safety system
WO1993005399A1 (en) Drop-sensitive sensor, especially for triggering protective devices in motor vehicles
DE4403502A1 (en) Passenger restraint system with electronic accident sensor
DE102008013546A1 (en) Collision detector device for an automobile
DE102008011943A1 (en) sensor arrangement
EP0263855B1 (en) Accelerometer
DE69218124T2 (en) Impact sensor
EP1320728A1 (en) Force transducer for a vehicle seat
WO1987005704A1 (en) Acceleration pick-up
DE3814949C1 (en)
DE10120976A1 (en) Load cell
DE19903585A1 (en) Semiconductor sensor for medical or automotive industries, or other areas, e.g. for measuring and calibration
EP1454118B1 (en) Device for measuring a force component or a torque component
EP0507902B1 (en) Acceleration sensor
DE19931379A1 (en) Seat element, in particular a motor vehicle seat with a load detection device
DE102013100502A1 (en) Device for a vehicle for detecting a lateral collision
DE3021317A1 (en) Measurement of vehicle deceleration using displaced mass - using attached magnet moving against spring w.r.t. Hall effect component
WO1998009488A1 (en) Electric actuator casing comprising fall sensitive elements, especially one or more sensors intended for triggering protective devices inside vehicules
EP0223955A1 (en) Acceleration sensor

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL SE

122 Ep: pct application non-entry in european phase