X-ray tube unit

Patent metadata

Field	Value
Publication number	US-9842720-B2
Application number	US-201514601308-A
Country	US
Kind code	B2
Filing date	Jan 21, 2015
Priority date	Jan 28, 2014
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

An x-ray tube unit includes an x-ray tube unit housing, in which a vacuum housing is disposed, which includes a high-voltage component. The vacuum housing includes an insulating medium circulating in the x-ray tube unit housing flowing around it. Further, a cathode module and an anode are disposed in the vacuum housing, the cathode module lying at high voltage and including an emitter which emits electrons when heating current is fed to it. In addition, a potential difference is present between the cathode module and the anode for accelerating the emitted electrons. In accordance with an embodiment of the invention a high-voltage feed, a heating transformer and a radiation protection component are integrated into the high-voltage component, the high-voltage component being filled at least partly with an electrically-insulating encapsulation material. This produces a compact and installation-friendly x-ray tube unit which has high operational safety.

First claim

What is claimed is:

1. An x-ray tube unit comprising:
an x-ray tube unit housing, a vacuum housing being disposed in the x-ray tube unit housing, the x-ray tube unit housing including a high-voltage component, a high-voltage feed, a heating transformer and a radiation protection component integrated into the high-voltage component, wherein the high-voltage component is filled at least partly with an electrically-insulating encapsulation material, and wherein the vacuum housing includes
an insulating medium within the x-ray tube unit housing, the x-ray tube housing being around the insulating medium,
a cathode module and an anode disposed in the vacuum housing, the cathode module lying at high voltage and including an emitter to emit electrons when heating current is fed to the cathode module, a potential difference being present for accelerating the emitted electrons between the cathode module and the anode, and
a heating current line connected through a conductor to the transformer,
wherein the high-voltage component is completely filled with the electrically-insulating encapsulation material that encapsulates the heating transformer, the heating current line and the conductor.

2. The x-ray tube unit of claim 1 , wherein the high-voltage component comprises a component housing made of an electrically-conducting material.

3. The x-ray tube unit of claim 2 , wherein the component housing is embodied as a radiation protection component.

4. The x-ray tube unit of claim 1 , wherein the high-voltage component is filled with the electrically-insulating encapsulation material in an area of the heating transformer and a remainder of the area is filled with an insulating medium.

5. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes an epoxy resin.

6. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes a silicon.

7. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes a polyurethane.

8. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes at least one filler.

9. The x-ray tube unit of claim 2 , wherein the electrically-insulating encapsulation material includes an epoxy resin.

10. The x-ray tube unit of claim 2 , wherein the electrically-insulating encapsulation material includes a silicon.

11. The x-ray tube unit of claim 2 , wherein the electrically-insulating encapsulation material includes a polyurethane.

12. The x-ray tube unit of claim 2 , wherein the electrically-insulating encapsulation material includes at least one filler.

13. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes an epoxy resin.

14. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes a silicon.

15. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes a polyurethane.

16. The x-ray tube unit of claim 1 , wherein the electrically-insulating encapsulation material includes at least one filler.

17. An x-ray tube unit comprising:
an x-ray tube unit housing, a vacuum housing being disposed in the x-ray tube unit housing, the x-ray tube unit housing including a high-voltage component, a high-voltage feed, a heating transformer and a radiation protection component integrated into the high-voltage component, wherein the high-voltage component is filled at least partly with an electrically-insulating encapsulation material, and wherein the vacuum housing includes
an insulating medium within the x-ray tube unit housing, the x-ray tube housing being around the insulating medium,
a cathode module and an anode disposed in the vacuum housing, the cathode module lying at high voltage and including an emitter to emit electrons when heating current is fed to the cathode module, a potential difference being present for accelerating the emitted electrons between the cathode module and the anode,
a heating current line connected through a conductor to the transformer, wherein the high-voltage component is filled with the electrically-insulating encapsulation material in an area of the high-voltage feed and a remainder of the area is filled with an insulating medium, the transformer, the heating current line and the conductor is encompassed by the encapsulation material.

Assignees

• Siemens Ag

Inventors

• Berk Jan
• Freudenberger Jörg
• Neumeier Ernst
• Noack Jana
• Schwarz Raimund
• Werner Lothar

Classifications

• H05G1/10

  Power supply arrangements for feeding the X-ray tube {(supply circuits with converters in general H02M; supply circuits for emitters and amplifiers H04B1/16 - H04B1/1623)} · CPC title

• H01J2235/1216

  of the vessel · CPC title

• H01J2235/1275

  characterised by the fluid · CPC title

• H01J2235/168

  against charged particles · CPC title

• H05G1/06 Primary

  X-ray tube and at least part of the power supply apparatus being mounted within the same housing · CPC title