Socket for receiving a plug of a high-voltage cable for a microfocus X-ray tube, plug connection for a high-voltage cable

摘要

The invention relates to a socket for receiving a high-voltage connector 18 of a high-voltage cable 23 for a microfocus X-ray tube with a cathode 24 having a filament 17 and a grid 27 made of metal, wherein the socket has a ceramic insulator 1 as an insulator, wherein the ceramic insulator 1 has a first cavity 2, which is formed at its filament-proximal end, which is interspersed with electrical contacts 5 for the filament and the grid 27 and electrical conductors 6, wherein the ceramic insulator 1 has a second cavity 3, which adjoins the first cavity 2 at its filament distal end, in which spring contacts 7 for the power supply of the filament 17 and a middle pin 8 for the voltage supply of the grid 27 for connection to the high voltage connector 18 are present and whose surface is covered by a metal layer 9, wherein the ceramic insulator 1 has a third cavity 4, the adjoins the second cavity 3 at the distal end of the filament, and which has a shape to ensure a snug fit of the high voltage connector 18 in the inserted state, wherein the ceramic insulator 1 with a grid seat 10, which in the installed state with the grid 27th the cathode 24 is conductively connected and the first cavity 2 and the second cavity 3 are enclosed in the radial direction of the grid seat 10, wherein between the grid seat 10 and the ceramic body 1 in the radial direction an air gap 12 is formed, wherein the filament-distal end of the grid seat 10th a circumferential groove 11 is provided in the axial direction between the grid seat 10 and the ceramic insulator 1. The invention is also concerned with a plug connection having such a socket and with the use of such a socket in which the applied high voltage is at least 160 kV ,