Diaphragm seal and pressure sensor having a diaphragm seal

US10281352B2 · kind B2 · utility

Assignee

• Endress+Hauser SE+Co. KG · DE

Inventors

• Raimund Becher · Ehrenkirchen, DE
• Dietmar Salg · Schopfheim, DE

Key dates

• Filing date: Jun 8, 2015
• Grant date: May 7, 2019
• Expiry date: Nov 11, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L19/0681
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A diaphragm seal for transmitting media pressure, comprising: a diaphragm-carrier body having a media-side surface and a separating diaphragm, which is connected to the diaphragm-carrier body in a pressure-tight manner along at least one periphery. A pressure chamber is formed between the separating diaphragm and the diaphragm-carrier body, and a temperature-isolation body having a channel, which can be filled with a transmission fluid, in order for the pressure chamber of the diaphragm-carrier body attached to a first front side to be connected to a pressure transducer which can be connected to a second front side, so that media pressure prevailing at the separating diaphragm can be transmitted to the pressure transducer. On the temperature-isolation body, on its outer surface, a plurality of successive and, in particular, undulating cooling ribs for emitting heat are formed, and wherein the minimum cross-sectional diameter of the temperature-isolation body between the cooling ribs, which follow one after the other along the section, decrease from the first front side to the second front side.