Rail system for distributing power and data signals

• US 7,049,514 B2
• Filed: 09/30/2003
• Issued: 05/23/2006
• Est. Priority Date: 09/30/2003
• Status: Expired due to Fees

• Current Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Original Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Inventors: Brandt, David D., Shen, Jie, Jensen, David L.
• Primary Examiner(s): Estrada, Angel R.
• Application Number:
  US10/675,099
• Publication Number:
  US 20050067181A1
• Time in Patent Office: 966 Days
• Field of Search: 174/27, 174/59, 174/50, 174/17.R, 174/68.1, 174/71.B, 174/72.B, 174/88.B, 174/99.B, 174/68.2, 174/49, 361/600, 361/601, 361/602, 361/641, 361/650, 361/724, 439/207, 439/211, 439/214, 439/247, 439/248, 439/924.1, 439/215, 439/216, 439/620, 439/110, 439/114, 439/115, 439/120, 439/121, 439/716, 439/532, 439/947
• US Class Current: 174/59
• CPC Class Codes: H02B 11/12 with isolation by horizontal withdrawal

Abstract

Transmission of electrical signals can be conducted over a rail. The rail, which may be an at least partially open rail structure, may be disposed within an enclosure, and can be used to transmit data and power signals to an assembly of electrical components. A connector assembly may also be provided to facilitate the transmission of data and power signals between the components and the rail.

Claims

1. A rail system for transmitting power and data signals comprising:

an insulative support;

first and second power conductors supported lengthwise on the support via an elongate support edge at least partially embedded in the insulative support, and configured to conduct electrical power; and

first and second data conductors supported lengthwise on the support via an elongate support edge at least partially embedded in the insulative support, wherein the data conductors are disposed between the power conductors and configured to transmit data signals;

wherein each of the power and data conductors presents a respective elongate connection edge opposite the respective support edge, the connection edges being generally aligned for receiving respective connector elements.

2. The system of claim 1, wherein the power conductors at least partially shield the data conductors from electromagnetic interference.

3. The system of claim 1, further comprising at least one capacitor coupled across the power conductors.

4. The system of claim 1, further comprising a second set of power conductors supported lengthwise on the support at cross sectional outermost positions on either side of the first and second power conductors.

5. The system of claim 1, wherein the conductors are uninsulated conductive rails.

6. The system of claim 1, wherein the first and second data conductors are spaced from one another by a first, substantially constant predetermined distance.

7. The system of claim 6, wherein the first and second power conductors are spaced from respective data conductors by a second, substantially constant predetermined distance.

8. The system of claim 7, wherein the first predetermined distance is equal to the second predetermined distance.

9. A rail system for transmitting power and data signals comprising:

an insulative support;

a first set of power conductors supported lengthwise on the support and configured to conduct electrical power;

a second set of power conductors supported lengthwise on the support and configured to conduct electrical power; and

first and second data conductors supported lengthwise on the support and configured to transmit data signals;

wherein the first and second set of power conductors and the first and second data conductors do not flex mechanically during engagement or disengagement with a mating connector assembly.

10. The system of claim 9, wherein if the first set of power conductors are identified as A and B, the second set of power conductors are identified as C and D, and the data conductors are identified as E and F, the conductors are disposed cross-sectionally on the support in the order A, C, E, F, D, B.

11. The system of claim 10, wherein conductors A and B are configured to transmit ac power.

12. The system of claim 11, wherein conductors C and D are configured to transmit dc power.

13. The system of claim 9, wherein if the first set of power conductors are identified as A and B, the second set of power conductors are identified as C and D, and the data conductors are identified as E and F, the conductors are disposed cross sectionally on the support in the order A, E, C, D, F, B.

14. The system of claim 13, wherein conductors A and B are configured to transmit ac power.

15. The system of claim 13, wherein conductors C and D are configured to transmit dc power.

16. The system of claim 9, further comprising a first capacitor coupled across the first set of power conductors.

17. The system of claim 16, further comprising a second capacitor coupled across the second set of power conductors.

18. The system of claim 9, wherein the conductors are disposed at substantially equal spacing across the support.

19. An open rail system for transmitting power and data signals comprising:

an insulative support;

first and second data conductors supported lengthwise on the support and configured to transmit data signals;

a first set of power conductors supported lengthwise on the support at positions flanking the data conductors and configured to conduct electrical power;

a second set of power conductors supported lengthwise on the support at positions flanking respective power conductors of the first set and configured to conduct electrical power; and

a capacitor coupled across the first set of power conductors.

20. The system of claim 19, further comprising a second capacitor coupled across the second set of power conductors.

21. The system of claim 19, wherein the first set of power conductors transmits dc power.

22. The system of claim 21, wherein the second set of power conductors transmits ac power.

23. The system of claim 19, wherein the first set of power conductors transmits ac power.

24. The system of claim 23, wherein the second set of power conductors transmits dc power.

25. A rail system, comprising:

an insulative support;

first and second rail power conductors mounted to the insulative support;

first and second rail data conductors mounted to the insulative support, wherein the data conductors and the power conductors are substantially parallel to one another;

wherein each the rail data conductors and the rail power conductors is mechanically engageable with a plurality of connectors at a plurality of locations along the length of the rail, each connector being connected to a different electrical component.

26. The rail system as recited in claim 25, comprising at least one capacitor coupled across the power conductors.

27. The rail system as recited in claim 25, wherein the first and second data conductors are disposed between the first and second power conductors.

28. The rail system as recited in claim 25, wherein the rail power conductors and the rail data conductors extend over at least three-fourths of the length of the insulative support.