Sensor unit having a connection cable

US7469586B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernhard Wild · Markgröningen, DE
• Rainer Maier · Tamm, DE
• Thomas Wahl · Pforzheim, DE
• Juergen Wilde · Fellbach, DE
• Gregor Jaehnig · Rochlitz, DE
• Peter Dettling · Waiblingen, DE
• Stefan Heinzelmann · Lauffen am Neckar, DE
• Bernd Rattay · Ditzingen, DE
• Bastian Buchholz · Munich, DE
• Juergen Moratz · Bad Liebenzell, DE

Key dates

• Filing date: Jun 7, 2006
• Grant date: Dec 30, 2008
• Expiry date: Nov 24, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4062
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor unit for determining a physical sensor parameter of a measuring gas, in particular an oxygen concentration in an exhaust gas of an internal combustion engine is provided, which includes a sensor housing and at least one connection cable having an electrically insulating cable sheathing, for the transmission of energy and/or the sensor parameter, the sensor housing having at least one cable opening for the connection cable and at least one sealing element for sheathing and sealing the connection cable, the cable having better sealing than the related art and/or the ability to resist higher temperature loading. According to the invention, this is achieved by at least partially forming the sealing element as tube.