Electrical Device, Particularyl for Driving a Motively and/or Rgeneratively Operable Electric Machine

• US 20090201649A1
• Filed: 10/16/2006
• Published: 08/13/2009
• Est. Priority Date: 10/14/2005
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Saur, Dietmar, Kienle, Wolfram, Jerg, Juergen, Ilic, Erich
• Granted Patent: US 8,014,151 B2
• Time in Patent Office: Days
• US Class Current: 361/707
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H05K 7/20927 Liquid coolant without phase change

Abstract

An electrical device, particularly for driving a motively and/or regeneratively operable electric machine, having at least one switching-element module, which may be for inverting and/or rectifying electric currents, the switching-element module being able to be cooled by a cooling device and resting at least indirectly thereon, a fixation element, at least one conductor, as well as the switching-element module and cooling device being disposed one above the other.

Claims

1-15. -15. (canceled)

16. An electrical device for driving at least one of a motively and regeneratively operable electric machine, comprising:

at least one switching-element module, the switching-element module being able to be cooled by a cooling device, and resting at least indirectly thereon;

a fixation element; and

at least one conductor, which with the fixation element and the switching-element module and the cooling device are disposed one above the other.

17. The electrical device of claim 16, wherein the at least one conductor is secured to the fixation element by an attaching element.

18. The electrical device of claim 16, wherein the at least one conductor is used for a power supply of a phase connection of the electric machine.

19. The electrical device of claim 16, wherein the at least one conductor is electrically isolated from the fixation element by at least one insulating intermediate layer.

20. The electrical device of claim 19, wherein resting on the at least one conductor are further conductors which are electrically isolated from each other by insulating intermediate layers.

21. The electrical device of claim 19, wherein the insulating intermediate layers project at least sectionally beyond the conductors.

22. The electrical device of claim 19, wherein a position of at least one of (i) at least one insulating intermediate layer and (ii) at least one conductor with respect to the fixation element is determined by a centering element.

23. The electrical device of claim 16, wherein the fixation element is made of a same material as a base of the switching-element module.

24. The electrical device of claim 16, wherein an elastic element is disposed between the fixation element and the switching-element module.

25. The electrical device of claim 16, wherein conductors project from several sides of the switching-element module, power conductors project from one side, and signal conductors project from another side.

26. The electrical device of claim 25, wherein at least one of the power conductors and the signal conductors point away with their ends from the cooling device.

27. The electrical device of claim 25, wherein the group of signal conductors includes one conductor which permits a voltage supply to the circuit substrate.

28. The electrical device of claim 16, wherein a shielding element at least partially covers at least one conductor.

29. The electrical device of claim 28, wherein the shielding element is disposed between the at least one conductor and a circuit substrate.

30. The electrical device of claim 16, wherein a relative position of the switching-element module with respect to the cooling device is defined by positive-locking elements.

31. The electrical device of claim 16, wherein the at least one switching-element module is for at least one of inverting and rectifying electric currents.