Pressure Sensor, in Particular for a Braking Apparatus

• US 20120067130A1
• Filed: 09/22/2011
• Published: 03/22/2012
• Est. Priority Date: 09/22/2010
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kaiser, Harry, Arlt, Andreas, Sundermeier, Frieder
• Granted Patent: US 8,671,767 B2
• Time in Patent Office: Days
• US Class Current: 73/706
• CPC Class Codes: B60T 8/368 combined with other mechanical components, e.g. pump units, master cylinders
• CPC Class Codes: G01L 19/0038 being part of the housing other details about the housing G01L19/14
• CPC Class Codes: G01L 19/0084 to the outside of the housing other details about the housing see G01L19/14
• CPC Class Codes: G01L 19/148 Details about the circuit board integration, e.g. integrated with the diaphragm surface or encapsulation

Abstract

A pressure sensor for detecting a pressure of a medium, in particular for a braking apparatus, includes a connecting flange having a fluid channel for connection to the medium which is to be measured, a pressure measuring cell which is arranged at the end of the fluid channel, and a circuit mount, with the pressure measuring cell having a contact surface for making contact. The contact surface is arranged at an angle relative to a center axis of the pressure sensor.

Claims

1. A pressure sensor for detecting a pressure of a medium, comprising

a connecting flange having a fluid channel for connection to the medium which is to be measured;

a pressure measuring cell which is arranged at the end of the fluid channel; and

a circuit mount,

wherein the pressure measuring cell has a contact surface for making contact, said contact surface being arranged at an angle relative to a center axis of the pressure sensor.

2. The pressure sensor according to claim 1, wherein the circuit mount has at least one contact area which is arranged approximately at the same angle as the contact surface of the pressure measuring cell relative to the center axis of the pressure sensor.

3. The pressure sensor according to claim 1, wherein contact is made with the pressure measuring cell by bonding contacts.

4. The pressure sensor according to claim 1, wherein the fluid channel in the connecting flange has an angled fluid channel region.

5. The pressure sensor according to claim 1, wherein the circuit mount has a center axis which coincides with the center axis of the pressure sensor.

6. The pressure sensor according to claim 1, further comprising a hole/pin connection between the circuit mount and the connecting flange.

7. The pressure sensor according to claim 1, wherein the circuit mount has a C-shaped recess in which the pressure measuring cell is at least partially accommodated.

8. The pressure sensor according to claim 1, wherein the angle between the center axis of the pressure sensor and the contact surface of the pressure measuring cell is between 50°

and 70°

.

9. The pressure sensor according to claim 1, further comprising a protective material which is arranged over the bonding contacts.

10. The pressure sensor according to claim 1, further comprising a protective sleeve configured and arranged to protect the pressure sensor.

11. The pressure sensor of claim 1 wherein the pressure sensor is configured to be used in a braking apparatus.

12. The pressure sensor according to claim 8, wherein the angle between the center axis of the pressure sensor and the contact surface of the pressure measuring cell is approximately 60°

.

13. The pressure sensor according to claim 9, wherein:

said protective material includes an elastic gel, and

said elastic gel is arranged over the contact surface of the pressure measuring cell.