Sensor device for detecting a flow property of a fluid medium

• US 20130283895A1
• Filed: 09/02/2011
• Published: 10/31/2013
• Est. Priority Date: 10/28/2010
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Etherington, Kurt, Schneider, Norbert, Rilling, Heinz, Konzelmann, Uwe, Kaufmann, Andreas, Rittmann, Michael, Stark, Andreas, Beyrich, Hans
• Granted Patent: US 9,279,709 B2
• Time in Patent Office: Days
• US Class Current: 73/114.34
• CPC Class Codes: G01F 1/6842 with means for influencing the fluid flow
• CPC Class Codes: G01F 1/692 Thin-film arrangements
• CPC Class Codes: G01F 15/02 Compensating or correcting for variations in pressure, density or temperature

Abstract

A sensor device for detecting at least one flow property of a fluid medium, including at least one sensor housing, in which at least one electronic module having at least one flow sensor for detecting the flow property is accommodated. At least one pressure sensor and at least one humidity sensor are accommodated inside the sensor housing, at least the pressure sensor and optionally also the humidity sensor is situated inside the sensor housing independently of the electronic module.

Claims

1-10. -10. (canceled)

11. A sensor device for detecting at least one flow property of a fluid medium, comprising:

at least one sensor housing; and

at least one electronic module having at least one flow sensor for detecting the flow property being accommodated inside the sensor housing, including at least one hot-film air mass meter chip, at least one pressure sensor is accommodated within the sensor housing, wherein at least the pressure sensor is situated inside the sensor housing independently of the electronic module.

12. The sensor device of claim 11, wherein the sensor housing has at least one electronic space, wherein the electronic module is at least partially accommodated in the electronic space, and wherein the pressure sensor and a humidity sensor are situated in the electronic space.

13. The sensor device of claim 11, wherein the electronic module includes a sensor carrier carrying the flow sensor and protruding out of the electronic space into at least one channel in the sensor housing, through which the fluid medium may flow.

14. The sensor device of claim 11, wherein the electronic module and the pressure sensor as well as also a humidity sensor are accommodated on different assembly planes inside the sensor housing.

15. The sensor device of claim 11, wherein the sensor housing has at least one pressure opening, including at least one pressure socket, the pressure sensor being accommodated inside the sensor housing so that it may be acted on by a pressure of the fluid medium via the pressure opening.

16. The sensor device of claim 11, wherein the pressure sensor is situated in an electronic space of the sensor housing, the electronic space being able to be assembled from a first side of the sensor housing, the pressure opening being situated on an opposite second side.

17. The sensor device of claim 11, wherein the sensor housing has at least one inlet opening for humidity, a humidity sensor being accommodated inside the sensor housing so that it may be acted on by humidity via the inlet opening.

18. The sensor device of claim 11, wherein the humidity sensor) is situated in an electronic space of the sensor housing, a humidity sensor being able to be assembled from a first side of the sensor housing, the inlet opening being situated on an opposite second side.

19. The sensor device of claim 11, wherein the sensor device has at least one temperature sensor situated on an outer side of the sensor housing.

22. The sensor device of claim 11, wherein the humidity sensor is also inserted into the sensor housing independently of the electronic module.

20. A method for manufacturing a sensor device for detecting at least one flow property of a fluid medium, the method comprising:

detecting the at least one flow property by at least one flow sensor inserted into at least one sensor housing of the sensor device, wherein the sensor device includes the at least one sensor housing, at least one electronic module having the at least one flow sensor inserted into the sensor housing, at least one pressure sensor and at least one humidity sensor being inserted into the sensor housing, and wherein at least the pressure sensor is inserted into the sensor housing independently of the electronic module.

21. The method of claim 20, wherein the humidity sensor is also inserted into the sensor housing independently of the electronic module.