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Control device having a pressure sensor

A pressure sensor and control device technology, applied in the direction of measuring device, measuring fluid pressure, measuring fluid pressure through electromagnetic components, etc., can solve the problems of pressure sensor influence and damage pressure sensor, etc.

Inactive Publication Date: 2015-05-13
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage here, however, is that the pressure sensor itself is exposed to the ambient air and is thus subject to external influences
In particular, liquid can flow to the pressure sensor and damage the pressure sensor, for example by corrosion or by falsifying the measurement results

Method used

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  • Control device having a pressure sensor
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Examples

Experimental program
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Effect test

Embodiment Construction

[0017] figure 1 A housing part 2 , ie a part of a housing 3 of the control device 1 , is shown in a schematic sectional view of the control device 1 of the motor vehicle. The shown component of the control device 1 is a plug terminal block 4 .

[0018] The plug terminal block 4 has a connection socket 5 formed by the housing part 2 into which a plurality of electrically conductive connection pins 6 protrude for contacting the control device 1 . The connecting pins 6 are electrically connected at their other end to the printed circuit board 7 located in the housing 2 , wherein the connecting pins 6 are inserted into corresponding vias of the printed circuit board 7 for this purpose. For the sake of clarity, only a few connection pins 6 are here marked with reference numerals. In the assembled state of the control device 1 , the socket 5 protrudes from the housing 3 of the control device 1 . In order to ensure the tightness of the control device 1 , the housing part 2 has a h...

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PUM

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Abstract

The invention relates to a control device, in particular for a motor vehicle, having a multi-part housing, in which at least one printed circuit board is arranged, wherein at least one housing part of the housing has an air duct, which leads from an opening in the housing part to a pressure sensor arranged on the printed circuit board and which determines the ambient pressure and which is sealed against the printed circuit board. Hereby, it is provided that the opening (19) is closed by means of a liquid-impervious pressure balance membrane (20).

Description

technical field [0001] The invention relates to a control device, in particular for a motor vehicle, comprising a multi-part housing in which at least one circuit board is arranged, wherein at least one housing part of the housing has An air channel leads from an opening in the housing to an ambient pressure-determining pressure sensor located in the housing and is sealed relative to the printed circuit board. Background technique [0002] Such control devices are known in the prior art. Arranging a pressure sensor in the control device makes it possible to provide extremely precise control and / or measured values, wherein the corresponding signals can be evaluated and / or determined taking into account the ambient pressure. [0003] Laid-open document DE 100 22 124 A1 discloses a corresponding control device comprising a housing in which a vent tube forming an air channel is provided, which leads from the pressure sensor to the outside of the housing so that the A pressure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L9/00G01L19/06G01L19/14
CPCG01L19/0654G01L19/0636G01L19/147
Inventor U·亨内尔
Owner ROBERT BOSCH GMBH