Valeo Schalter Und Sensoren Gmbh

Volkswagen Ag

Hans-Wilhelm Wehling

Stephan Max

Uwe Kupfernagel

Dietmar Gruedl

Heinrich Gotzig

Thomas Jung

Wolfgang Hamm

Michael Ludwig

Oliver Eidel

Alexander Urban

Stefan Triebl

Joerg Weyland

Hubert Neft

Natalie Weber

Wilhelm Korthals

Karl-Heinz John

Wolfgang Katzenberger

Stefan Robert Muller

Jörg Weyland

Daniel Kuhnle

Christian Frischmann

Stefan Robert MÜLLER

The invention relates to a method for producing an ultrasound sensor () for a motor vehicle, in which method, for the ultrasound sensor (), a diaphragm () for emitting ultrasound signals in an emitting direction () and a sensor housing () are provided, in and/or on which sensor housing the diaphragm () is fastened, wherein the sensor housing () has a front side (), which points in the emitting direction () of the diaphragm (), and a rear side (), which points in a rearward direction () which is opposite to the emitting direction (), and wherein the sensor housing () is, on the rear side (), formed with a rear-side installation opening () for components of the ultrasound sensor (), wherein the diaphragm () is inserted into the sensor housing () through the rear-side installation opening () in the emitting direction (), and said diaphragm is placed, through an interior space () of the sensor housing (), into an installed position at the front side () of the sensor housing (), and is fastened in the installed position.

Method for producing an ultrasonic sensor for a motor vehicle

An ultrasonic sensor () comprises a housing () and a diaphragm (), to which a piezo-electric element () is fastened, and an electric connector region () which has an earth connector (). A layer made from an electrically non-conducting material is arranged between the diaphragm () and the piezo-electric element (), and the diaphragm () is connected to the earth connector () in an electrically conducting manner.

Ultrasonic sensor

A method for producing an ultrasound sensor for a vehicle is disclosed. A diaphragm for emitting ultrasound signals in an emitting direction and a sensor housing are provided for the sensor, where the diaphragm is fastened on the sensor housing, where the housing has a front side, which points in the emitting direction, and a rear side, which points opposite the emitting direction, and where, on the front side, the housing is formed with a front-side opening for the diaphragm, where the front side of the housing is connected to a cap which is composed of a foil and by way of which the front-side opening of the housing is covered in the emitting direction, where the diaphragm is inserted at least regionally into a receptacle of the cap and, a front side of the diaphragm, which points in the emitting direction, is connected to a base of the receptacle.

The invention relates to a diaphragm () for an ultrasonic transducer having a diaphragm body () which is made of metallic material and is provided on an outer surface region () with a coating (). In order to make it possible for the diaphragm surface to be provided with a particularly damage-resistant coating, the coating () has a transparent form such that the surface region () of the diaphragm body () is visible through the coating ().

Diaphragm and process for producing a diaphragm for an ultrasonic transducer

The invention proposes a process for the surface treatment of aluminum in order to produce an electrical contact, and a corresponding component part, wherein an oxide layer on the aluminum surface is removed, for example by etching, in a first step and, in a second step, before an oxide layer is re-formed, the surface is sealed wet-chemically with a conversion layer having metal ions of zirconium or titanium.

Process for the surface treatment of aluminium

The invention relates to an ultrasonic sensor () in particular a motor vehicle ultrasonic sensor, comprising a housing (), and a diaphragm () which is supported in or on a section () of the housing () and which has a diaphragm base () and a substantially cylindrical wall section () adjoining the diaphragm base (), at least one stabilizing and/or attenuating auxiliary element () being arranged on or in the wall section () of the diaphragm ().

Ultrasound sensor with membrane

Ultrasound sensor (), in particular motor vehicle ultrasound sensor, having a housing (), having a diaphragm () which is mounted in or on a section () of the housing (), and having a decoupling element () which extends at least partially between the diaphragm () and the housing section (), wherein the decoupling element () and the housing section () have latching means () by means of which the decoupling element () and the housing section () are connected to one another.

Ultrasound sensor, in particular, a motor vehicle ultrasound sensor

Growing community of inventors

Heilbronn, Germany

Hans-Wilhelm Wehling