Sensor assembly with splice band connection

• US 6,683,450 B2
• Filed: 10/31/2001
• Issued: 01/27/2004
• Est. Priority Date: 10/31/2001
• Status: Expired due to Term

• Current Assignee: Bourns Incorporated
• Original Assignee: SSI Technologies, Inc. (Amphenol Corporation)
• Inventors: McDonald, Kenneth, Rick, Michael G., Schneider, Gary P.
• Primary Examiner(s): Snow, Walter E.
• Assistant Examiner(s): Zaveri, Subhash
• Application Number:
  US10/001,555
• Publication Number:
  US 20030080730A1
• Time in Patent Office: 818 Days
• Field of Search: 324/173-174, 324/207--20, 324/207.25, 72/201, 72/213, 72/172, 439/439, 174/84-C-
• US Class Current: 324/173
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: G01P 1/026 for speed measuring devices, e.g. pulse generator

Abstract

An electronic sensor assembly that can be used in speed-sensing applications such as anti-lock brake systems. The sensor assembly includes a sensor element, a housing surrounding the sensor element, a sensor terminal connected to the sensor element and extending outside of the housing for electrically coupling the sensor element to a conductor, a connector terminal for mechanically and electrically coupling the sensor terminal to the conductor, and a splice band mechanically and electrically coupling the sensor terminal to the connector terminal without welding, soldering, or using a crimp bucket. In one aspect of the invention, the sensor assembly further includes a capacitor electrically and mechanically coupled to the sensor terminal and the connector terminal via the splice band. The sensor element is preferably an active sensor such as a magneto-resistive sensor or a Hall-Effect sensor.

Claims

1. An electronic sensor assembly comprising:

a sensor element;

a housing surrounding the sensor element;

a sensor terminal electrically connected to the sensor element and extending outside of the housing for electrically coupling the sensor element to a conductor;

a connector terminal for mechanically and electrically coupling the sensor terminal to the conductor; and

a splice band mechanically and electrically coupling the sensor terminal to the connector terminal without welding, soldering, or using crimp buckets.

2. The electronic sensor assembly of claim 1, further comprising:

a capacitor mechanically and electrically coupled to the sensor terminal and the connector terminal via the splice band.

3. The electronic sensor assembly of claim 1, wherein the sensor element is a magneto-resistive sensor.

4. The electronic sensor assembly of claim 1, wherein the sensor element is a Hall-Effect sensor.

5. The electronic sensor assembly of claim 1, wherein the splice band is substantially U-shaped prior to being assembled on the sensor assembly.

6. The electronic sensor assembly of claim 1, wherein the sensor terminal and the connector terminal are formed from a solid conductive material.

7. An electronic sensor assembly comprising:

a sensor element;

a housing surrounding the sensor element;

at least two spaced-apart sensor terminals coupled to the sensor element and extending outside of the housing for electrically coupling the sensor element to a conductor;

a connector terminal for mechanically and electrically coupling the sensor terminals to the conductor, the connector terminal including first and second legs;

a first splice band mechanically and electrically coupling a first of the sensor terminals to the first leg of the connector terminal without welding, soldering, or using crimp buckets; and

a second splice band mechanically and electrically coupling a second of the sensor terminals to the second leg of the connector terminal without welding, soldering, or using crimp buckets.

8. The sensor assembly of claim 7, further comprising:

a capacitor having first and second capacitor terminals, the first capacitor terminal being mechanically and electrically coupled to the first leg of the connector terminal and the first sensor terminal via the first splice band, and the second capacitor terminal being mechanically and electrically coupled to the second leg of the connector terminal and the second sensor terminal via the second splice band.

9. The sensor assembly of claim 7, wherein the sensor element is a magneto-resistive sensor.

10. The sensor assembly of claim 7, wherein the sensor element is a Hall-Effect sensor.

11. The electronic sensor assembly of claim 7, wherein the splice band is substantially U-shaped prior to being assembled on the sensor assembly.

12. The electronic sensor assembly of claim 7, wherein the first and second legs of the connector terminal are spaced apart at a distance of approximately 2 to 3 mm.

13. The electronic sensor assembly of claim 7, wherein the connector terminal is substantially planar.

14. The electronic sensor assembly of claim 7, wherein the first and second legs of the connector terminal are substantially rectangular in cross-section.

15. A method of assembling a sensor assembly having a sensor with at least two sensor terminals and a connector terminal having first and second legs, the method comprising:

aligning a first sensor terminal and the first leg of the connector terminal;

splice-connecting the first sensor terminal and the first leg of the connector terminal to create a mechanical and electrical connection without welding, soldering, or using crimp buckets;

aligning a second sensor terminal and the second leg of the connector terminal; and

splice-connecting the second sensor terminal and the second leg of the connector terminal to create a mechanical and electrical connection without welding, soldering, or using crimp buckets.

16. The method of claim 15, wherein the sensor assembly further includes a capacitor having first and second capacitor terminals, the method further comprising:

aligning the first capacitor terminal with the first sensor terminal and the first leg of the connector terminal;

splice-connecting the first capacitor terminal with the first sensor terminal and the first leg of the connector terminal;

aligning the second capacitor terminal with the second sensor terminal and the second leg of the connector terminal; and

splice-connecting the second capacitor terminal with the second sensor terminal and the second leg of the connector terminal.

17. The method of claim 15, wherein the aligning and the splice-connecting is automated.

18. The method of claim 15, further comprising:

removing a cross-member connected between the first and second legs to electrically and mechanically isolate the first and second legs from one another.

19. The method of claim 15, wherein the sensor is surrounded by a housing and the sensor terminals extend outside of the housing, the method further comprising:

bending the sensor terminals with respect to the housing.

20. The method of claim 15, further comprising:

overmolding at least a portion of the assembled sensor assembly.

21. The method of claim 15, wherein splice-connecting the first sensor terminal and the first leg of the connector terminal includes closing a first U-shaped splice band around the first sensor terminal and the first leg of the connector terminal, and wherein splice-connecting the second sensor terminal and the second leg of the connector terminal includes closing a second U-shaped splice band around the second sensor terminal and the second leg of the connector terminal.

22. The method of claim 21, wherein splice-connecting the first sensor terminal and the first leg of the connector terminal further includes crimping the closed first splice band, and wherein splice-connecting the second sensor terminal and the second leg of the connector terminal further includes crimping the closed second splice band.

23. The method of claim 15, further comprising:

splice-connecting a first conductor wire to a first leg of the connector terminal; and

splice-connecting a second conductor wire to a second leg of the connector terminal.