Electric-power supply with rectifier

• US 20030231450A1
• Filed: 06/17/2003
• Published: 12/18/2003
• Est. Priority Date: 06/17/2002
• Status: Active Grant

• Current Assignee: ABB Schweiz AG (ABB Limited)
• Original Assignee: Magne Tek, S.p.A.
• Inventors: Piazzesi, Mauro, Canova, Antonio
• Granted Patent: US 6,934,156 B2
• Time in Patent Office: Days
• US Class Current: 361/93.1
• CPC Class Codes: H02M 3/285 Single converters with a plurality of output stages connected in parallel parallel operation of a plurality of converters in dc distribution networks H02J1/10
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H05K 7/1432 specially adapted for power drive units or power converters
• CPC Class Codes: H05K 7/14329 specially adapted for the configuration of power bus bars

Abstract

An electric-power supply incorporates an electronic card with at least one rectifier and one output line of the rectifier. The output line is formed of at least one first bar made of conductive material, terminating with one first output end, and at least one second bar made of conductive material, terminating with one second output end. The two output ends form the positive and negative output poles of the power supply for connection to a load. Means are provided for electrical and mechanical connection for the first bar and the second bar to the card, and on at least one of the two bars is carried at least one electronic component of said rectifier.

Claims

1. An electric-power supply comprising an electronic card with at least one rectifier and one output line of said rectifier, characterized in that the output line comprises at least one first bar made of conductive material, terminating with one first output end, and at least one second bar made of conductive material, terminating with one second output end, said first and second output ends forming positive and negative output poles of the power supply for connection to a load, means for electrical and mechanical connection being provided for said first and second bars to said card, and on least one of said two bars there is carried at least one electronic component of said rectifier.

2. The power supply according to claim 1, characterized in that said first and said second bars develop on planes orthogonal to said card.

3. The power supply according to claim 1 wherein said first bar extends from its own output end up to output diodes of said rectifier.

4. The power supply according to claim 3 wherein said first bar is constrained to at least one first bracket for mechanical and electrical connection to said output diodes.

5. The power supply according to claim 1 wherein said first bar carries a current sensor.

6. The power supply according to claim 5, said current sensor comprising a Hall sensor.

7. The power supply according to one claim 1, further comprising a third bar made of conductive material, the third bar electrically connected to the second bar.

8. The power supply according to claim 7, said third bar is mechanically connected to the first bar, and further comprising a common choke of said rectifier set positioned along one another of the first bar and of the third bar..

9. The power supply according to claim 8 wherein said third bar is constrained to at least one bracket for mechanical and electrical connection to said card.

10. The power supply according to claim 9, wherein said at least one bracket for connection of the third bar to the card connects the third bar electrically to output capacitors of the rectifier.

11. The power supply according to claim 9 wherein said third bar is in electrical and mechanical connection with means for electrically interrupting the power supply.

12. The power supply according to claim 11 wherein said third bar has a portion forming a heat sink.

13. The power supply according to claim 12, said heat sink formed by a toothing along an edge of said portion of the third bar.

14. The power supply according to claim 13, said first bar and said third bar being mechanically constrained together in an area corresponding to two planar stretches positioned alongside one another with the interposition of a layer of insulating material.

15. The power supply according to claim 14 wherein said heat sink portion of the third bar is substantially orthogonal to said planar stretch thereof in an area corresponding to which the third bar is connected mechanically to the first bar.

16. The power supply according to claim 14, said common choke positioned around said two planar stretches of the first bar and of the third bar.

17. The power supply according to claim 1, the second bar carrying an output fuse electrically connected thereto and to said card.

18. The power supply according to claim 17 wherein said fuse is electrically and mechanically connected to said card by means of at least one respective bracket.

19. The power supply according to claim 11, characterized in that said means for interrupting the supply is positioned between said second bar and said third bar.

20. The power supply according to claim 19, said means for interrupting the supply comprising a circuit breaker.

21. The power supply according to claim 20 further comprising a reset mechanism for resetting circuit breaker, said reset mechanism accessible from a front side of the power supply.

22. The power supply according to claim 21 wherein said circuit breaker is mounted in an aperture of the card and projects above and below the card, said bars being mounted on one face of the card, and said reset mechanism is located on an opposite face of the card.

23. The power supply according to claim 21, said reset mechanism comprising a rod and a crank.

24. The power supply according to claim 23, said first bar comprising a rectilinear development from the output end to the connection with the output diodes of the rectifier.