VERTICALLY ADJUSTABLE, MOUNTABLE SPEED SENSOR

• US 20090064779A1
• Filed: 07/27/2006
• Published: 03/12/2009
• Est. Priority Date: 08/25/2005
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Ott, Harald
• Granted Patent: US 7,600,443 B2
• Time in Patent Office: Days
• US Class Current: 73/493
• CPC Class Codes: F16H 59/38 of gearing elements
• CPC Class Codes: F16H 61/0006 Electronic control units for transmission control, e.g. connectors, casings or circuit boards
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: G01P 1/00 Details of instruments
• CPC Class Codes: G01P 1/026 for speed measuring devices, e.g. pulse generator

Abstract

The invention relates to a method for mounting sensors (40), e.g. rpm sensors, on a support plate (10) of a control module. Said method comprises the following steps: a cylindrical sensor (40) is oriented and is inserted into a tubular sensor dome (18) of the support plate (10) in the mounting direction (56). An assembly dimension (88) for the sensor is then set as the distance between the face of the sensor and a top side (16) of the support plate (10). A positive connection between the sensor (40) and the sensor dome (18) is established by introducing a fixing material (68) into a hollow space (64), and a positive or a bonding sensor contact (76) between the sensor (40) and contacts (70) located at the support plate end is created when the sensor (40) is inserted into the sensor dome (18).

Claims

1. A method for mounting sensors (40) on a support plate (10) of a control module with the following method steps:

a) the orientation and insertion of the sensor (40) into a sensor dome (18) of the support plate (10) in an installation direction (56),

b) the adjustment of a sensor assembly dimension (88) with regard to a top surface (16) of the support plate (10),

c) the production of a form-locked connection between the sensor (40) and the sensor dome (18) through the introduction of a fixing compound (68) into a cavity (64),

d) the production of a form-locked or integrally joined sensor contact (76) between the sensor (40) and support plate contacts (70) during the insertion of the sensor (40) into the sensor dome (18) according to method step a).

2. The method as recited in claim 1,

wherein according to method step c), the fixing compound (68) is injected into the cavity (64) that is delimited by a wall (58) of the sensor dome (18) and by a circumference surface of the sensor (40) that has flute-shaped raised areas (46).

3. The method as recited in claim 1,

wherein an adhesive, a hot-melt glue, or an easily flowing plastic injection-molding compound is used as the fixing compound (68).

4. The method as recited in claim 1,

wherein according to method step a), pressed screens (52) of the sensor (40) are centered by means of insertion bevels (74).

5. The method as recited in claim 1,

wherein according to method step d), the sensor contacting (76) is produced by means of an insulation displacement contact produced between a pressed screen (52) of the sensor (40) and contact tabs (94, 96) of support plate pressed screens (70) or by means of an integrally joined connection (100) between a bent end (102) of a support plate pressed screen (70) and a pressed screen (52) of the sensor (40).

6. The method as recited in claim 5,

wherein the integrally joined connection (100) is produced by means of laser welding or resistance welding.

7. The method as recited in claim 1,

wherein after production of the form-locked or integrally joined sensor contact (76) an excess length (78, 98) of pressed screen is cut off.

8. A support plate (10) for control modules, in particular for transmission control modules (92) for motor vehicles, having at least one sensor dome (18) in which a sensor (40) is installed in accordance with the method as recited in claim 1,

wherein the sensor (40) has flute-shaped raised areas (46) let into its circumference surface and has pressed screens (52) that are embodied with a freely extending length (55) that exceeds a maximum assembly dimension (86, 88) of the sensor (40) with regard to the top surface (16) of the support plate (10).

9. The support plate as recited in claim 8,

wherein the flute-shaped raised areas (46) on the sensor (40) are situated in a region whose length in the axial direction of the sensor (40) corresponds to a protrusion dimension (86) of the sensor (40) beyond the sensor dome (18).

10. The support plate as recited in claim 8,

wherein this support plate includes extrusion-coated or inserted support plate pressed screens (70) that extend underneath openings (72) of the support plate (10), the fronts of which openings are provided with insertion bevels (74) for centering the pressed screens (52).

11. The support plate as recited in claim 10,

wherein a rib-shaped dividing piece (90) extends between the openings (72) for the pressed screens (52) of the sensor (40).

12. The support plate as recited in claim 8,

wherein the sensor (40) is a sensor that detects the drive shaft speed or output shaft speed of a motor vehicle transmission.