Sensor for detecting a temperature and a pressure of a fluid medium

Patent metadata

Field	Value
Publication number	US-9841335-B2
Application number	US-201514592052-A
Country	US
Kind code	B2
Filing date	Jan 8, 2015
Priority date	Jan 8, 2014
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A sensor for detecting a temperature and a pressure of a fluid medium includes at least one housing, at least one temperature sensor for detecting the temperature of the fluid medium and at least one pressure sensor element for detecting the pressure of the fluid medium. An activation and/or evaluation circuit is situated in the housing. The activation and/or evaluation circuit is situated on a circuit carrier. The activation and/or evaluation circuit is connected to the temperature sensor and the pressure sensor element. The temperature sensor has at least one connecting line including a connecting section for connecting to the activation and/or evaluation circuit. The circuit carrier has one recess. The connecting section is angled toward the connecting lines. The connecting section protrudes through the recess for connecting to the activation and/or evaluation circuit.

First claim

What is claimed is:

1. A sensor for detecting a temperature and a pressure of a fluid medium, comprising:
at least one housing including a pressure channel and a temperature sensor channel, the temperature sensor channel being separate from the pressure channel and the fluid medium;
at least one temperature sensor for detecting the temperature of the fluid medium, at least a portion of the temperature sensor located in the temperature sensor channel;
at least one pressure sensor element for detecting the pressure of the fluid medium in the pressure channel; and
an activation and/or evaluation circuit situated in the housing, the activation and/or evaluation circuit being situated on a circuit carrier, the activation and/or evaluation circuit being connected to the temperature sensor and the pressure sensor element, the temperature sensor having at least one connecting line including a connecting section for connecting to the activation and/or evaluation circuit;
wherein the circuit carrier has a recess, and the connecting section is angled toward the connecting lines and protrudes through the recess for connecting to one or more contact surfaces of the activation and/or evaluation circuit, the one or more contact surfaces facing away from the temperature sensor channel.

2. The sensor of claim 1 , wherein the connecting section is angled toward the connecting line at an angle of 70° to 110°.

3. The sensor of claim 1 , wherein the recess is at least partly surrounded by the circuit carrier.

4. The sensor of claim 1 , wherein the recess is a hole.

5. The sensor of claim 4 , wherein the hole has a width in a first direction and a width in a second direction perpendicular to the first direction, the width in the first direction being greater than the width in the second direction.

6. The sensor of claim 5 , wherein the hole has a longitudinal axis parallel to the first direction, and the connecting section as seen in a projection on a plane of the hole is situated at an angle of 0° to 90° toward the longitudinal axis.

7. The sensor of claim 1 , wherein the at least one contact surface is situated on the circuit carrier.

8. The sensor of claim 1 , wherein the connecting section is integrally joined to the contact area.

9. The sensor of claim 1 , wherein the connecting section is soldered or welded to the contact area.

10. The sensor of claim 1 , wherein the connecting section is angled toward the connecting line at an angle of 70° to 90°.

11. The sensor of claim 1 , wherein the housing includes a base, and the activation and/or evaluation circuit is situated on the base.

12. The sensor of claim 1 , wherein the housing includes a pressure connection portion extending away from the base, the pressure connection portion including the pressure channel and the temperature sensor channel.

13. The sensor of claim 1 , wherein the temperature sensor channel is delimited by a wall adjacent to the temperature sensor through which the temperature sensor senses the temperature of the fluid medium.

14. A method for manufacturing a sensor for detecting a temperature and a pressure of a fluid medium, the method comprising:
providing at least one housing including a pressure channel and a temperature sensor channel, the temperature sensor channel being separate from the pressure channel and the fluid medium;
assembling a circuit carrier including an activation and/or evaluation circuit in the housing; and
connecting at least one temperature sensor for detecting the temperature of the fluid medium and at least one pressure sensor element for detecting the pressure of the fluid medium to the activation and/or evaluation circuit, the temperature sensor having at least one connecting line including a connecting section for connecting to the activation and/or evaluation circuit;
wherein a recess is implemented in the circuit carrier, and
wherein the connecting section is angled toward the connecting line, the connecting line is inserted through the recess into the temperature sensor channel, and the connecting section is connected to one or more contact surfaces of the activation and/or evaluation circuit, the one or more contact surfaces facing away from the temperature sensor channel.

Assignees

• Bosch Gmbh Robert

Inventors

• Rueth Falk
• Lux Alexander

Classifications

• G01K2205/04

  for measuring exhaust gas temperature · CPC title

• G01L19/0092

  Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature (G01L9/025, G01L9/045, G01L9/065, G01L9/085, G01L9/105, G01L9/125, G01L19/02, G01L19/04 take precedence; measuring two or more variable G01D21/02; temperature sensors with pressure compensation G01K1/26) · CPC title

• G01L9/00 Primary

  Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements {(G01L11/004 takes precedence)}; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means (measuring differences of two or more pressure values G01L13/00; measuring two or more pressure values simultaneously G01L15/00) · CPC title

• Y10T29/49002

  Electrical device making · CPC title

• G01K1/14 Primary

  Supports; Fastening devices; Arrangements for mounting thermometers in particular locations · CPC title