JPS61742U

JPS61742U - Indirectly heated cathode structure

Info

Publication number: JPS61742U
Application number: JP8434084U
Authority: JP
Inventors: 季次郎岩田
Original assignee: 株式会社東芝
Priority date: 1984-06-08
Filing date: 1984-06-08
Publication date: 1986-01-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】第１図は従来の傍熱型陰極構体の一例を示す断面図、第
２図は本考案の傍熱型陰極構体の一実施例を示す断面図
、第３図は本考案の傍熱型陰極構体の他の実施例を示す
断面図である。１，１１，２１・・・傍熱型陰極構体、２，１２，２２
・・・電子放射物質、３，１３．２３・・・基体金属、
４，１４，２４・・・内部陰極スリーブ、５，１５，２
５・・・支持部、６，１６，２６・・・外部陰極スリー
ブ、，１７，２７・・・通孔部、８，１８，２８・・・
絶縁支持体、１６ａ，２６ａ・・・フラン
ジ、１６ｂ，２６ｂ−・・固定部、１８ａｗ
２８ａ・・・溝部、１９．２９・・・溶融固着材。[Brief Description of the Drawings] Fig. 1 is a sectional view showing an example of a conventional indirectly heated cathode assembly, Fig. 2 is a sectional view showing an embodiment of the indirectly heated cathode assembly of the present invention, and Fig. 3 is a sectional view showing an example of a conventional indirectly heated cathode assembly. FIG. 3 is a sectional view showing another embodiment of the indirectly heated cathode structure of the present invention. 1, 11, 21... Indirectly heated cathode structure, 2, 12, 22
...Electron emitting material, 3,13.23...Base metal,
4, 14, 24...Inner cathode sleeve, 5, 15, 2
5... Support part, 6, 16, 26... External cathode sleeve, 17, 27... Through hole part, 8, 18, 28...
Insulating support, 1 6 a, 2 6 a...flange, 16 b, 2 6 b-... fixing part, 18aw
28a...Groove portion, 19.29...Melting and fixing material.

Claims

[Scope of utility model registration request]

A cathode base whose top surface is coated with an electron-emitting substance, an inner cathode sleeve with this cathode base fixed to the top, an outer cathode sleeve that supports this inner cathode sleeve inside via a support part, and this outer cathode sleeve. In an indirectly heated cathode assembly comprising at least an insulating support having a through hole into which a cathode sleeve is inserted and fixed, the insertion and fixation of the outer cathode sleeve and the insulating support are provided at the top of the outer cathode sleeve. A fixing part is formed by processing the end edge of the flange so as to be substantially along the axial direction of the external cathode sleeve, and a groove part provided in a part of the insulating support body corresponding to the fixing part is fused and fixed. An indirectly heated cathode structure characterized by the following.