Sensor device for detecting at least the moisture of a flowing fluid medium

Patent metadata

Field	Value
Publication number	US-9541433-B2
Application number	US-201214366652-A
Country	US
Kind code	B2
Filing date	Oct 23, 2012
Priority date	Dec 21, 2011
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A sensor device for detecting at least one property of a flowing fluid medium includes: at least one moisture sensor; and at least one application device for applying the flowing fluid medium to the moisture sensor. The application device includes at least one diaphragm and at least one protective device which has at least one guide rib structure.

First claim

What is claimed is:

1. A sensor device for detecting at least one property of a flowing medium, comprising:
at least one moisture sensor; and
at least one application device for applying the flowing fluid medium to the moisture sensor, wherein the application device includes at least one diaphragm and at least one protective device which has at least one guide rib structure;
wherein the guide rib structure includes multiple guide ribs which are arranged in one of:
a longitudinal arrangement in which the guide ribs are situated essentially in parallel to a main flow direction of the flowing fluid medium;
a transverse arrangement in which the guide ribs are situated essentially perpendicularly with respect to a main flow direction of the flowing fluid medium;
a radial arrangement in which the guide ribs are situated radially with respect to one another;
a secantial arrangement in which the guide ribs are situated secantially with respect to a virtual circle; and
a labyrinthine arrangement in which the guide ribs form a labyrinthine structure in which the labyrinthine structure diverts the flowing fluid medium, which acts on the moisture sensor, multiple several times.

2. The sensor device as recited in claim 1 , further comprising:
at least one flow sensor.

3. The sensor device as recited in claim 1 , further comprising:
at least one temperature sensor.

4. The sensor device as recited in claim 1 , wherein:
the moisture sensor is accommodated in at least one housing of the sensor device;
the at least one application device includes at least one opening in the housing; and
the diaphragm at least partially encloses the moisture sensor.

5. The sensor device as recited in claim 1 , wherein the at least one protective device is situated with respect to the diaphragm in such a way that the flowing fluid medium acting on the moisture sensor initially passes through the guide rib structure and subsequently through the diaphragm.

6. The sensor device as recited in claim 1 , wherein the at least one protective device has at least one cover fitted onto the guide rib structure.

7. The sensor device as recited in claim 1 , wherein the at least one protective device is configured to throttle a flow of at least a portion of the flowing fluid medium.

8. The sensor device as recited in claim 1 , wherein the at least one protective device is configured to guide at least a portion of the flowing fluid medium to the moisture sensor and away from the moisture sensor.

9. The sensor device as recited in claim 1 , wherein the protective device is at least partially integrated into a housing cover of the housing.

Assignees

• Bosch Gmbh Robert

Inventors

• Wagner Ulrich
• Steuber Frank
• Konzelmann Uwe
• Kaufmann Andreas

Classifications

• G01F15/00

  Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus · CPC title

• G01N27/223

  for determining moisture content, e.g. humidity (rain detectors on vehicle windows B60S1/0825) · CPC title

• Y02T10/121

  Cross-Sectional Technologies · mapped topic

• G01N27/048

  for determining moisture content of the material · CPC title

• F02D41/187

  using a hot wire flow sensor · CPC title