High-voltage power switch having a contact gap equipped with switching gas deflection elements
View Patent ↗A switching device assembly with a contact gap has a nozzle made of insulating material. The nozzle made of insulating material is formed with a nozzle channel that ends in a hot gas space. A deflector element is arranged within the hot gas space. The deflector element is supported inside the deflector channel.
1. A switching device assembly with a contact gap, the assembly comprising:
an insulating nozzle at least partially surrounding the contact gap, said insulating nozzle having a nozzle channel opening out into a hot gas space;
a deflector element disposed in said hot gas space, said deflector element having a deflector channel and being supported within said deflector channel; and
a support with radially aligned struts in said deflector channel.
2. The switching device assembly according to claim 1 , wherein a wall delimiting said nozzle channel protrudes at least partially into said deflector channel.
3. The switching device assembly according to claim 2 , wherein said deflector element is supported on said wall that protrudes into said deflector channel.
4. The switching device assembly according to claim 1 , wherein said deflector element is formed integrally with a wall delimiting said nozzle channel.
5. The switching device assembly according to claim 2 , wherein said wall delimiting said nozzle channel protrudes into said deflector element to form an annular deflector channel.
6. The switching device assembly according to claim 1 , wherein a wall that delimits said deflector channel has radially aligned openings formed therein.
7. The switching device assembly according to claim 1 , wherein said deflector element is formed to have an electrically insulating effect.
8. The switching device assembly according to claim 1 , wherein said deflector element is rotationally symmetrical with respect to an axis.
9. The switching device assembly according to claim 8 , wherein said deflector element has a substantially hollow-cylindrical shape.
10. The switching device assembly according to claim 8 , wherein said deflector element has a shape substantially of a truncated hollow cone.
11. The switching device assembly according to claim 1 , wherein said deflector channel has a discontinuous change in cross section.
12. The switching device assembly according to claim 1 , wherein said deflector channel has a permanent gas inlet opening and a permanent gas outlet opening.
13. The switching device assembly according to claim 1 , wherein said hot gas space is formed between two coaxially aligned, rotationally symmetrical contact pieces.
14. The switching device assembly according to claim 13 , wherein said nozzle channel opens out in said hot gas space on an end side between said contact pieces.
15. A switching device assembly with a contact gap, the assembly comprising:
an insulating nozzle at least partially surrounding the contact gap, said insulating nozzle having a nozzle channel opening out into a hot gas space;
deflector element disposed in said hot gas space, said deflector element having a deflector channel and being supported within said deflector channel; and
a support for said deflector element disposed within a central section of said deflector channel, with free ends projecting on opposite sides of said deflector element.
16. A switching device assembly with a contact gap, the assembly comprising:
an insulating nozzle at least partially surrounding the contact gap, said insulating nozzle having a nozzle channel opening out into a hot gas space;
a deflector element disposed in said hot gas space, said deflector element having a deflector channel and being supported within said deflector channel; and
wherein said nozzle channel opens out as an annular channel in said hot gas space, and wherein a blowing direction, which points into said hot gas space, of said nozzle channel opens out in said deflector channel.