Connecting device for a magnetic system of an imaging system

Patent metadata

Field	Value
Publication number	US-9638775-B2
Application number	US-201213645502-A
Country	US
Kind code	B2
Filing date	Oct 4, 2012
Priority date	Oct 5, 2011
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A connecting device for a magnetic system of an imaging system includes a holding element for connection of the connecting device to a power supply connection of the magnetic system, and a connecting element for connection of the connecting device to a power supply cable for operation of the magnetic system. The connecting device also includes an oscillation damping device having a spring element. The oscillation damping device is operable to dampen oscillations of the magnetic system that act on the connecting device by way of the holding element, with respect to the connecting element.

First claim

The invention claimed is:

1. A connecting device for a magnetic system of an imaging system, the connecting device comprising:
a holding element for mechanical and electrical connection of the connecting device to a power supply connection of the magnetic system;
a connecting element for the mechanical and electrical connection of the connecting device to a power supply cable for operation of the magnetic system; and
an oscillation damping device comprising a spring ring element, wherein the power supply cable is mechanically connected to the outer surface of the spring ring element,
wherein the oscillation damping device is operable to dampen oscillations of the magnetic system with respect to the connecting element that act on the connecting device by way of the holding element.

2. The connecting device as claimed in claim 1 , wherein the connecting device is formed by the holding element and the connecting element separated by the oscillation damping device.

3. The connecting device as claimed in claim 1 , wherein the spring element is operable to contribute to the supply of power to the magnetic system or to power transfer to the magnetic system.

4. The connecting device as claimed in claim 1 , wherein the connecting device is substantially made of a conductive material.

5. The connecting device as claimed in claim 4 , wherein the conductive material is a metal.

6. The connecting device as claimed in claim 1 , wherein the spring ring element comprises a plurality of spring ring windings.

7. The connecting device as claimed in claim 6 , wherein the plurality of spring ring windings comprises a sheet metal strip that is shaped into the plurality of ring windings arranged one above the other to form a closed structure.

8. The connecting device as claimed in claim 1 , wherein the oscillation damping device comprises a plurality of damping elements,
wherein each damping element of the plurality of damping elements is arranged for oscillation damping so as to be effective in a different spatial direction.

9. The connecting device as claimed in claim 1 , wherein the oscillation damping device comprises a plurality of spring elements.

10. The connecting device as claimed in claim 9 , wherein the plurality of spring elements comprises a plurality of spring rings.

11. The connecting device as claimed in claim 8 , wherein the arrangement of the plurality of damping elements is adjustable with respect to each other, an arrangement of the holding element or an arrangement of the connecting element is adjustable with respect to the oscillation damping device, or a combination thereof.

12. A magnetic system for an imaging system, the magnetic system comprising:
a connecting device comprising:
a holding element for mechanical and electrical connection of the connecting device to a power supply connection of the magnetic system;
a connecting element for the mechanical and electrical connection of the connecting device to a power supply cable for operation of the magnetic system; and
an oscillation damping device comprising a spring ring element, wherein the power supply cable is mechanically connected to the outer surface of the spring ring element,

wherein the oscillation damping device is operable to dampen oscillations of the magnetic system with respect to the connecting element that act on the connecting device by way of the holding element.

13. The magnetic system as claimed in claim 12 , wherein during operation, the magnetic system is operable to execute an oscillatory movement with a natural frequency, and the oscillation damping device has a natural frequency that is lower than a lowest relevant natural frequency of the oscillatory movement of the magnetic system.

14. An imaging system comprising:
a magnetic system comprising:
a connecting device comprising:
a holding element for mechanical and electrical connection of the connecting device, the holding element comprising a power supply connection of the magnetic system;
a connecting element for the mechanical and electrical connection of the connecting device to a power supply cable for operation of the magnetic system; and
an oscillation damping device comprising a spring ring element, the oscillation damping device separating the holding element from the connecting element,

wherein the oscillation damping device is operable to dampen oscillations of the magnetic system that act on the connecting device by way of the holding element, with respect to the connecting element.

15. The imaging system as claimed in claim 14 , wherein during operation, the magnetic system is operable to execute an oscillatory movement with a natural frequency,
wherein the oscillation damping device has a natural frequency that is lower than a lowest relevant natural frequency of the oscillatory movement of the magnetic system; and
wherein the natural frequency of the oscillation damping device is higher than natural frequencies of a power supply arrangement connected to the connecting device.

16. The imaging system as claimed in claim 14 , wherein the power supply cable is a cable with an internal conductor and an external conductor,
wherein the magnetic system comprises a plurality of connecting devices, the plurality of connecting devices comprising the connecting device, and
wherein each connecting device of the plurality of connecting devices is associated with the internal conductor or the external conductor.

17. The imaging system as claimed in claim 16 , wherein the power supply cable is a coaxial cable.

18. The imaging system as claimed in claim 15 , wherein the power supply cable is a cable with an internal conductor and an external conductor,
wherein the magnetic system comprises a plurality of connecting devices, the plurality of connecting devices comprising the connecting device, and
wherein each connecting device of the plurality of connecting devices is associated with the internal conductor or the external conductor.

19. The imaging system as claimed in claim 18 , wherein the power supply cable is a coaxial cable.

20. A method for connecting a power supply cable to a magnetic system of an imaging system, the method comprising:
mechanically and electrically connecting a connecting device, using a holding element, to a power supply connection of the magnetic system; and
mechanically and electrically connecting the connecting device, using a connecting element, to a power supply cable for operation of the magnetic system,
damping, with an oscillation damping device of the connecting device, oscillations of the magnetic system that act on the connecting device by way of the holding element, with respect to the connecting element, the oscillation damping device comprising a spring ring element, wherein the power supply cable is mechanically connected to the outer surface of the spring ring element.

Assignees

• Dietz Peter
• Krug Andreas
• Riegler Joerg
• Siemens Ag

Inventors

• Dietz Peter
• Krug Andreas
• Riegler Joerg

Classifications

• G01R33/3854 Primary

  means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems · CPC title

• H01R33/975

  Holders with resilient means for protecting apparatus against vibrations or shocks · CPC title