Control device

• US 9,335,205 B2
• Filed: 09/16/2011
• Issued: 05/10/2016
• Est. Priority Date: 09/28/2010
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Luhr, Volker, Faas, Matthias, Feridouni, Hamed
• Primary Examiner(s): Caputo, Lisa
• Assistant Examiner(s): ROY, PUNAM P
• Application Number:
  US13/876,645
• Publication Number:
  US 20130186204A1
• Time in Patent Office: 1,698 Days
• US Class Current: 1/1
• CPC Class Codes: G01H 17/00 Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups see provisionally also G01H1/00
• CPC Class Codes: H05K 5/0047 having a two-part housing enclosing a PCB
• CPC Class Codes: H05K 5/0056 characterized by features for protecting electronic components against vibration and moisture, e.g. potting, holders for relatively large capacitors
• CPC Class Codes: H05K 5/0069 having connector relating features for connecting the connector pins with the PCB or for mounting the connector body with the housing
• CPC Class Codes: H05K 5/0078 specially adapted for acceleration sensors, e.g. crash sensors, airbag sensors

Abstract

The invention relates to a control device comprising a housing (2) with a first housing part (20) and a second housing part (21), a printed circuit board (3) arranged in the housing (2), a plug element (4) which has a plurality of contacts (40) and is connected to the printed circuit board (3) both mechanically and electrically, and a vibration-sensitive sensor, wherein the plug element (4) is firmly connected to one of the housing parts (20, 21) by means of a mechanical connection (5), wherein the mechanical connection (5) has a protruding element (50) and a receiving element (51) with a recess (7) for receiving the protruding element (50), wherein the recess (7) has a base region (9), a first wall region (10) and a second wall region (30), and wherein a first rib (11) is arranged on the first wall region (10) and a second rib (12) is arranged on the second wall region (30).

Claims

1. A control device comprising:

a housing (2) with a first housing part (20) and a second housing part (21),

a printed circuit board (3) arranged in the housing (2),

a plug element (4) comprising a plurality of contacts (40), which is connected both mechanically and electrically to the printed circuit board (3), and

a vibration-sensitive sensor,

wherein the plug element (4) is firmly connected to the first housing part by means of a mechanical connection (5),

wherein the mechanical connection (5) has a protruding element (50) and a receiving element (51) with a recess (7) for receiving the protruding element (50),

wherein the recess (7) has a base region (9), a first wall region (10) and a second wall region (30) and

wherein a first rib (11) projects into the recess (7) from the first wall region (10) and a second rib (12) projects into the recess (7) from the second wall region (30),

wherein a first height (H) is defined between the first wall region (10) and an outer end (14) of the first rib (11) and a second height (H) is defined between the second wall region (30) and an outer end (14) of the second rib (12),

wherein the first height (H) and the second height (H) are dimensioned such that a width (B) of the protruding element (50) is larger than a remaining opening dimension (C) of the recess (7) between the outer end (14) of the first rib (11) and the outer end (14) of the second rib (14),

wherein at least one of the first wall region (10) and the second wall region (30) is formed by a resilient limb (8), and

wherein a slot (6) is arranged on a side of the resilient limb (8) and reduces the cross-section of the limb (8) so that elastic deformation of the resilient limb (8) occurs with less force.

2. The control device according to claim 1, characterized in that the first rib (11) is disposed offset with respect to the second rib (12) as viewed in a longitudinal direction (X-X) of the recess (7).

3. The control device according to claim 2, characterized in that the sensor is at least one of a yaw-rate sensor and an acceleration sensor.

4. The control device according to claim 1, characterized in that the sensor is at least one of a yaw-rate sensor and an acceleration sensor.

5. The control device according to claim 1, characterized in that the outer end (14) of each of the first rib and the second rib is in the shape of a cutting edge.

6. The control device according to claim 5, characterized in that the protruding element (50) extends into the recess (7) such that an end of the protruding element (50) is adjacent to the base region (9), and wherein a linearly shaped positively locking contact is provided between the protruding element (50) and the receiving element (51) due to the outer end (14) of each of the first rib (11) and the second rib (12) being in the shape of a cutting edge.

7. The control device according to claim 1, characterized in that a plurality of ribs (11, 12) is disposed in each case parallel to one another on each wall region (10, 30) of the recess (7).

8. The control device according to claim 1, characterized in that each of the first rib and the second rib runs perpendicularly to a longitudinal direction of the recess (7).

9. The control device according to claim 1, characterized in that a plurality of mechanical connections (5) is provided between the plug element (4) and the first housing part.

10. The control device according to claim 1, characterized in that each of the first housing part and a second housing part is connected to the plug element (4) by means of a mechanical connection (5).

11. The control device according to claim 3, characterized in that the outer end (14) of each of the first rib and the second rib is in the shape of a cutting edge.

12. The control device according to claim 11, characterized in that a plurality of ribs (11, 12) is disposed in each case parallel to one another on each wall region (10, 30) of the recess (7).

13. The control device according to claim 12, characterized in that each of the first rib and the second rib runs perpendicularly to a longitudinal direction of the recess (7).

14. The control device according to claim 13, characterized in that a plurality of mechanical connections (5) is provided between the plug element (4) and the first housing part.

15. The control device according to claim 14, characterized in that each of the first housing part and a second housing part is connected to the plug element (4) by means of a mechanical connection (5).

16. The control device according to claim 1, characterized in that the slot (6) is arranged on an exterior side (16) of the resilient limb (8) opposite the recess (7).

17. The control device according to claim 1, characterized in that the recess (7) is configured on the plug element (4) and the protruding element (50) is configured on the first housing part.

18. The control device according to claim 1, characterized in that each of the first rib (11) and the second rib (12) are triangularly shaped in cross section such that the outer end (14) of each of the first rib (11) and the second rib (12) define a cutting edge.

19. The control device according to claim 1, characterized in that the resilient limb (8) extends in a direction parallel to an insertion direction of the protruding element (50) into the recess (7) and extends opposite to the insertion direction.