Pressure sensor with improved diaphragm seal

US12196638B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Lars Sodan · Reutlingen, DE
• Dorothee Nonnenmacher · Echterdingen, DE
• Elmar Kroner · Tamm, DE
• Friedhelm Guenter · Burgstetten, DE
• Joachim Friedl · Reutlingen, DE
• Joachin Kreutzer · Reutlingen, DE
• Klaus-Volker Schuett · Wernau, DE
• Michael Raedler · Hamburg, DE
• Patrick Stihler · Schlaitdorf, DE
• Raschid Baraki · Reutlingen, DE
• Steven Maul · Leonberg, DE
• Yang Zou · Renningen, DE

Key dates

• Filing date: Nov 3, 2023
• Grant date: Jan 14, 2025
• Expiry date: Nov 3, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L19/142
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for manufacturing a sensor including a sensing element and a housing, the housing including an interior space, which is accessible through a housing opening, and the sensing element being situated in the interior space and being designed to detect a property and/or a composition of an ambient medium of the sensor. The method includes filling the interior space with a protective medium through the housing opening, the protective medium being designed to transfer the property and/or the composition of the ambient medium to the sensing element. The method includes fixing a preferably flexible diaphragm at or in the housing opening preferably for sealing the housing opening, the diaphragm including at least one diaphragm opening. The method includes sealing the at least one diaphragm opening.