Magnetic assist assembly having heat dissipation
AssigneeVarex Imaging Corporation
InventorsVance Scott Robinson, Kasey Otho Greenland, Neil Bostrom
Life of this patent
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Abstract
In one example, a lift assembly may exert a force on a rotatable anode of an X-ray tube. The lift assembly may include a lift shaft and a lift electromagnet. The lift shaft may be coupled to the anode and may be configured to rotate around an axis of rotation of the anode. The lift electromagnet may be configured to apply a magnetic force to the lift shaft in a radial direction. The lift electromagnet may include a first pole and a second pole oriented towards the lift shaft. Windings may be positioned around the first pole. The lift assembly may include a heat dissipating structure.
Claims20
A lift assembly configured to exert a force on a rotatable anode of an X-ray tube, the lift assembly comprising:
- a lift shaft coupled to the anode and configured to rotate around an axis of rotation of the anode;
- a lift electromagnet configured to apply a magnetic force to the lift shaft in a substantially radial direction, the lift electromagnet comprising at least a first pole and a second pole oriented towards the lift shaft;
- windings positioned around at least the first pole;
- and
- a heat dissipating structure.
A method comprising:
- rotating an anode assembly of an X-ray source;
- applying a magnetic force by a lift electromagnet to a lift shaft coupled to the anode assembly;
- cooling the lift electromagnet using a heat dissipating structure.
A lift assembly configured to exert a force on a rotatable anode of an X-ray source, the lift assembly comprising:
- a lift shaft means coupled to the anode for rotating around an axis of rotation of the anode;
- a lift electromagnet means for applying a magnetic force to the lift shaft in a radial direction;
- and
- heat dissipating means for cooling the lift electromagnet.
Dependencies are inferred from the claim text.