Neutral beam injection gradient pole voltage-dividing power supply high voltage leading-out wire terminal

Abstract

The invention discloses a neutral beam injection gradient pole voltage-dividing power supply high voltage leading-out wire terminal which comprises a sleeve, wherein the sleeve is made of a cylindrical polytetrafluoroethylene material; the periphery of the sleeve is cut into a projected annular sheet; a central hole through the top of the sleeve is formed in the central position of the bottom of the sleeve, and a high voltage leading-out wire is leaded out from the inner part of the central hole; a top cover is fixedly arranged at the top of the sleeve; an external screw thread is arranged at the lower part of the sleeve; the lower part of the sleeve is in screwed connection with a polytetrafluoroethylene screwed cap through the external screw thread; and rubber seal rings are respectively sleeved between the screwed cap and the sleeve as well as between the top cover and the sleeve. The leading-out wire terminal made of polytetrafluoroethylene is low in price, small in size, light in weight, high in insulation grade and convenient to install, and can be used for a long time; and the rubber seal rings are respectively sleeved between the screwed cap and the sleeve as well as between the top cover and the sleeve, so that the moisture outside is prevented from entering an oil tank through the central hole of the sleeve and the insulating oil is prevented from flowing out from the central hole of the sleeve.

Description

technical field [0001] The invention relates to the technical field of neutral beam injection power supplies, in particular to a high-voltage lead wire terminal of a neutral beam injection gradient pole voltage dividing power supply. Background technique [0002] The neutral beam injection gradient pole voltage divider power supply is a device for supplying power to the ion source gradient pole. The power supply adopts the resistance voltage division and voltage regulation mode, and has 8 lead wires. The ground voltage is approximately equal to the acceleration pole high voltage power supply for neutral beam injection. The output voltage of the accelerated very high voltage power supply of the positive ion source of the conventional neutral beam implantation system is up to 90kV. Therefore, it is necessary to solve the insulation problem of the 8 leads to the ground. Conventional insulating bushings with a voltage level exceeding 90kV are all ceramic bushings with large...

AI Technical Summary

Problems solved by technology

The conventional insulating bushings with a voltage level of more than 90kV are all ceramic bushings with large volume and weight; this will increase the manufacturing cost of the gradient pole voltage divider power supply and occupy a lot of space.

Images