Vibration-damped circuit arrangement, converter, and aircraft having such an arrangement

Patent metadata

Field	Value
Publication number	US-11564310-B2
Application number	US-201917045219-A
Country	US
Kind code	B2
Filing date	Mar 20, 2019
Priority date	Apr 5, 2018
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

The invention relates to a circuit arrangement, comprising at least one wiring carrier plate (1), characterized by at least one separating element (2) formed in the wiring carrier plate (1), which separating element divides the wiring carrier plate (1) into sections separated by the separating element (2), wherein the transfer of vibrations from one section to another section is at least partially decoupled and/or damped by the separating element (2). The invention further relates to a converter having such a circuit arrangement, and to an aircraft having a converter. The converter can comprise capacitor stacks (3) arranged on the wiring carrier plate (1), and power semiconductors (6).

First claim

The invention claimed is:

1. A circuit arrangement comprising:
at least one wiring carrier board;
at least two separating elements that are formed in a wiring carrier board of the at least one wiring carrier board, wherein the at least two separating elements divide the wiring carrier board into sections that are separated by the at least two separating elements;
one or more capacitor stacks that are arranged on the wiring carrier board, in at least one of the sections of the wiring carrier board separated by the at least two separating elements, respectively, wherein a capacitor stack of the one or more capacitor stacks is arranged on a first side of the wiring carrier board, in a section of the at least one section of the wiring carrier board; and
a power semiconductor that is arranged on a second side of the wiring carrier board, in the section of the wiring carrier board, the second side of the wiring carrier board being opposite the first side of the wiring carrier board,
wherein transmission of vibrations from one of the sections to another of the sections is at least partially decoupled, damped, or decoupled and damped by the at least two separating elements, and
wherein the at least two separating elements are configured as locally limited laminations of viscoelastic or viscous materials into the wiring carrier board.

2. The circuit arrangement of claim 1 , further comprising another separating element, the other separating element being configured as a locally limited slot or a narrowing of the at least one wiring carrier board.

3. The circuit arrangement of claim 1 , wherein a separating element of the at least two separating elements is formed from a rubber-like material.

4. The circuit arrangement of claim 1 , wherein the at least two separating elements are configured as flexible or semi-flexible regions of the wiring carrier board.

5. A converter comprising:
a circuit arrangement comprising:
at least one wiring carrier board;
at least two separating elements that are formed in a wiring carrier board of the at least one wiring carrier board, wherein the at least two separating elements divide the wiring carrier board into sections that are separated by the at least two separating elements, and wherein transmission of vibrations from one of the sections to another of the sections is at least partially decoupled, damped, or decoupled and damped by the at least two separating elements; and
one or more capacitor stacks that are arranged on the wiring carrier board, in at least one of the sections of the wiring carrier board separated by the at least two separating elements, respectively, wherein a capacitor stack of the one or more capacitor stacks is arranged on a first side of the wiring carrier board, in a section of the at least one section of the wiring carrier board; and

power semiconductors that are arranged on a second side of the wiring carrier board, at least one of the power semiconductors being positioned in the section of the wiring carrier board, the second side of the wiring carrier board being opposite the first side of the wiring carrier board,
wherein the at least two separating elements are configured as locally limited laminations of viscoelastic or viscous materials into the wiring carrier board.

6. An aircraft comprising:
a converter comprising:
a circuit arrangement comprising:
at least one wiring carrier board;
at least two separating elements that are formed in a wiring carrier board of the at least one wiring carrier board, wherein the at least two separating elements divide the wiring carrier board into sections that are separated by the at least two separating elements, and wherein transmission of vibrations from one of the sections to another of the sections is at least partially decoupled, damped, or decoupled and damped by the at least two separating elements; and
one or more capacitor stacks that are arranged on the wiring carrier board, in at least one of the sections of the wiring carrier board separated by the at least two separating elements, respectively, wherein a capacitor stack of the one or more capacitor stacks is arranged on a first side of the wiring carrier board, in a section of the at least one section of the wiring carrier board; and

power semiconductors that are arranged on a second side of the at least one wiring carrier board, at least one of the power semiconductors being positioned in the section of the wiring carrier board, the second side of the wiring carrier board being opposite the first side of the wiring carrier board; and

an electric motor as an electric drive of the aircraft,
wherein the electric motor is supplied with electrical power by the converter, and
wherein the at least two separating elements are configured as locally limited laminations of viscoelastic or viscous materials into the wiring carrier board.

7. The aircraft of claim 6 , further comprising a propeller that is driven by the electric motor.

8. The aircraft of claim 6 , further comprising another separating element, the other separating element being configured as a locally limited slot or a narrowing of the at least one wiring carrier board.

9. The aircraft of claim 6 , wherein a separating element of the at least two separating elements is formed from a rubber-like material.

10. The aircraft of claim 6 , wherein the at least two separating elements are configured as flexible or semi-flexible regions of the wiring carrier board.

11. The converter of claim 5 , further comprising another separating element, the other separating element being configured as a locally limited slot or a narrowing of the at least one wiring carrier board.

12. The converter of claim 5 , wherein a separating element of the at least two separating elements is formed from a rubber-like material.

13. The converter of claim 5 , wherein the at least two separating elements are configured as flexible or semi-flexible regions of the wiring carrier board.

Assignees

• Rolls Royce Deutschland Ltd & Co Kg

Inventors

• Blank Rene
• Franke Martin
• Frühauf Peter
• Heimann Matthias
• Jeske Nora
• Knofe Rüdiger
• Müller Bernd
• Nerreter Stefan
• Strogies Jörg
• Wilke Klaus
• Wittreich Ulrich

Classifications

• H05K2201/0187

  with regions of different dielectrics in the same layer, e.g. in a printed capacitor for locally changing the dielectric properties · CPC title

• H05K3/4691

  Rigid-flexible multilayer circuits comprising rigid and flexible layers, e.g. having in the bending regions only flexible layers · CPC title

• H05K1/181

  associated with surface mounted components · CPC title

• H05K2201/09072

  Hole or recess under component or special relationship between hole and component · CPC title

• H05K2201/2045

  Protection against vibrations · CPC title