Pressure sensor arrangement for detecting a pressure of a fluid medium in a measurement chamber

A pressure sensor and fluid medium technology, applied in the direction of measuring fluid pressure, measuring instrument components, measuring devices, etc., can solve the problems of high component cost and connection process cost, reduced connection stability, cracking, etc., and achieve simplified weight and cost Effect

Active Publication Date: 2016-07-06
ROBERT BOSCH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, attention must be paid to the very precise welded connection, since otherwise the stability of the connection would be reduced and the connection could break due to the corresponding torque transmission during screwing into the measuring chamber wall
This structure also entails high component and joining process costs

Method used

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  • Pressure sensor arrangement for detecting a pressure of a fluid medium in a measurement chamber
  • Pressure sensor arrangement for detecting a pressure of a fluid medium in a measurement chamber
  • Pressure sensor arrangement for detecting a pressure of a fluid medium in a measurement chamber

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Embodiment Construction

[0020] exist figure 1 A cross-sectional view of an exemplary embodiment of a pressure sensor assembly 10 according to the present invention is shown in . The pressure sensor assembly 10 can be designed, for example, to sense the fuel pressure in a fuel line of an internal combustion engine. The pressure sensor assembly 10 includes a sensor housing 12 , a pressure fitting 14 , a housing base 16 and a sensor element 18 . A printed circuit board 20 with an evaluation circuit (not shown in detail) is mounted, for example glued, on the housing base 16 , which is provided for outputting a signal indicative of the pressure acting on the sensor element 18 .

[0021] The pressure connection 14 can be made of metal and can be designed as a cylindrical pressure connection, in particular a screw connection, the cylinder axis 22 of which coincides with the longitudinal extension direction 24 of the pressure sensor assembly 10 . At one end, the pressure connection 14 has an opening 26 for...

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Abstract

Disclosed is a pressure sensor arrangement (10) for detecting a pressure of a fluid medium in a measurement chamber. The pressure sensor arrangement (10) comprises a sensor housing (12), at least one sensor element (18) which is arranged in or on the sensor housing (12) in such a way that it can be exposed to the medium in order to measure a pressure of the medium, a pressure connection (14), by means of which the pressure sensor arrangement (10) can be fitted on or in the measurement chamber, and a housing base (16) on which the sensor housing (12) is arranged. The housing base (16) is configured as a metal sheet (30). The housing base (16) has at least one elastically deformable retaining element (34) for fastening the sensor housing (12) to the housing base (16).

Description

Background technique [0001] Various devices and methods for sensing the pressure of fluid media such as gases and liquids are known from the prior art. The measured variable "pressure" is the globally acting, non-directional force occurring in gases and liquids. For measuring the pressure, there are dynamically and statically active measured value receivers or sensors. Dynamically acting pressure sensors are only used to measure pressure fluctuations in gaseous or liquid media. The pressure measurement can take place, for example, directly by deformation of the diaphragm or by force sensors. Especially for the measurement of very high pressures it is in principle possible to subject the resistor to the medium, since many known resistors exhibit a pressure dependence. In this case, however, the simultaneous temperature-dependent suppression of the resistors and the pressure-tight passage of the electrical connections from the pressure medium become difficult. [0002] There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/14
CPCG01L19/143G01D11/245
Inventor R·凯泽C·卡舒布
Owner ROBERT BOSCH GMBH
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