Collector porcelain cylinder on multi-stage depressurization collector and collector including the same

Abstract

The invention discloses a collector porcelain cylinder on a multi-stage depressed collector and a collector comprising the porcelain cylinder. The collector porcelain cylinder comprises a cylinder body with at least three-stage depression function, wherein the cylinder body of the collector porcelain cylinder is in a cylindrical integral structure; and a limiting boss used for positioning and mounting inner collectors arranged in the collector porcelain cylinder is arranged on an inner wall of the cylinder body of the collector porcelain cylinder. The collector porcelain cylinder solves the problems that the traditional porcelain cylinder in a multi-section or split structure is complicated in assembling procedure and easily deforms in an assembling process. According to the collector comprising the porcelain cylinder, compared with the traditional collector, the assembling process is simple; positioning and assembling of the inner collectors are easy to realize; and the superposition error generated by the collector during assembling is small.

Description

technical field [0001] The invention belongs to the field of vacuum microwave electronic devices, and in particular relates to a collector porcelain cylinder on a multi-stage decompression collector and a collector including the porcelain cylinder. Background technique [0002] Traveling wave tubes are currently the most widely used electric vacuum devices. Millimeter-wave traveling-wave tubes are mainly used in communications, radar, missile-borne seekers, electronic countermeasures, and other fields; due to strict restrictions on volume and weight in airborne, aerospace applications, and synthetic applications, millimeter-wave traveling-wave tubes face With the requirement of miniaturization. [0003] The collector is the part in the traveling wave tube that receives the electron beam and recovers the energy. At present, most millimeter-wave broadband high-power traveling wave tubes use multi-stage step-down collectors, which recover energy from the electron beam, thereb...

AI Technical Summary

Problems solved by technology

[0005] The first technical problem to be solved by the present invention is to provide a collector porcelain cylinder on a multi-stage depressurization collector; the collector porcelain cylinder body provided by the present invention is a cylindrical integrated structure, which solves the problem of traditional multi-lobe The assembly process of structural porcelain cylinder or split structure porcelain cylinder is cumbersome, and the porcelain cylinder is easy to deform during the assembly process, which greatly reduces the tolerance of the porcelain cylinder and the inner collector during the assembly process, and avoids the assembly of various parts The superposition effect produced between tolerances; for high-voltage traveling wave tubes, the ceramic cylinder with split structure obviously limits the miniaturization of the collector. The electrical distance needs to increase the thickness of the ceramic petals. The integral porcelain cylinder provided by the present invention maximizes the assembly space of the inner collector, so the inner collector can be made as large as possible, and at the same time, it can be conveniently designed to collect The insulation distance between the poles improves the efficiency of the collector and the withstand voltage strength, which facilitates the miniaturization of the collector

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