Pressure-sensor assembly, and corresponding device and insert

A pressure-sensor assembly for detecting the pressure of a fluid, the sensor assembly being configured as a self-standing unit to be positioned within a corresponding housing, and comprising:

• a pressure-sensitive component, having a generally cup-shaped sensor body, which includes a bottom portion and a peripheral portion that define an axial cavity, the bottom portion including an elastically deformable membrane part, which closes the axial cavity at an end of the sensor body, and the peripheral portion having a distal edge opposite to the bottom portion, which delimits an inlet of the axial cavity, the bottom portion having associated thereto at least one detection element for detecting deformation of the membrane part;
• a compensation element, configured for compensating possible variations of volume of the fluid, comprising at least one compensation body, made of a first elastically deformable or compressible material, and a core, fixed on which is the at least one compensation body, the core being made of a second material stiffer than the first material,
• wherein the sensor body and the compensation element are configured as distinct parts, and at least one part of the compensation element extends within the axial cavity of the sensor body,
• wherein at least one first portion of the compensation element is configured for coupling with the sensor body in such a way that the pressure-sensitive component and the compensation element are manipulable as a single unit self-standing even in absence of said corresponding housing;
• wherein the at least one first portion of the compensation element comprises an engagement part of the at least one compensation body having respective positioning and/or fixing means configured to interfere for coupling purposes with a peripheral surface of the sensor body;
• wherein the positioning and/or fixing means comprise a plurality of axial reliefs which are distributed along a peripheral wall of said engagement part and configured to elastically interfere with a peripheral surface of the axial cavity of the sensor body.