Hollow cathode heater with heat preservation function

A hollow cathode and heater technology, which is applied in the installation/support/configuration/insulation of the main electrode of the discharge tube and the electrode assembly, can solve the problems affecting the life and reliability of the hollow cathode, the thermal efficiency of the hollow cathode, and the increase of the working voltage of the hollow cathode. Metal foil embrittlement and oxidation problems, to achieve the effect of preventing discharge phenomenon, increasing insulation distance, and reducing complexity

Active Publication Date: 2019-05-17
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
View PDF9 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this structure, after the hollow cathode works for a long time, the metal foil will have problems such as embrittlement and oxidation of the metal foil, and a series of problem...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hollow cathode heater with heat preservation function
  • Hollow cathode heater with heat preservation function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0028] see figure 1 , which is a schematic structural diagram of a hollow cathode heater with heat preservation function provided in this embodiment. A hollow cathode heater with heat preservation function, comprising a heat shield assembly and a heater assembly installed inside the heat shield assembly;

[0029] The heat shield assembly includes a sleeve 9, an inner support 7, a thermal insulation filler, a bottom plate 11 and a top cover 10; the sleeve 9 includes an outer sleeve and an inner sleeve, between the outer wall of the inner sleeve and the inner sleeve. A cavity is formed between the inner walls of the outer sleeve; the inner support 7 is installed inside t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a hollow cathode heater with a heat preservation function. A heat shield component is integrated outside a heater component of a hollow cathode; a cavity between an outer sleeveand an inner sleeve is divided into two sub-cavities; heat preservation materials are filled in the sub-cavities; and sealing of the heat shield component is achieved by a bottom plate and a top cover at the two ends of the sleeves. Axial and radial radiation heat of a hollow cathode is effectively reflected step by step by arranging different thermal insulation layers, so that the heat conduction area of the hollow cathode is reduced; the heat efficiency of the heater component of the hollow cathode can be improved; and the discharge voltage of the hollow cathode during self-maintained discharge can be reduced. In addition, a contact holding pole and the heater component of the hollow cathode are respectively mounted inside and outside the heat shield component, so that an insulation distance between the contact holding pole and the heater component of the hollow cathode is increased; a discharge phenomenon generated due to a too close distance of the contact holding pole and the heater component can be prevented; and the structural complexity of the contact holding pole of the hollow cathode can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of propulsion systems of space vehicles, and in particular relates to a hollow cathode heater with heat preservation function. Background technique [0002] With the advancement and development of science and technology, human beings explore space more deeply. The electric propulsion system is called green propulsion technology, and it has been used more and more in space technology. It is mainly used for orbit transfer and orbit maintenance of space vehicles. , attitude control, potential control, etc., long life and high reliability are the basic requirements of space vehicles for electric propulsion systems. As the core component of the electric propulsion system, the hollow cathode determines the on-orbit working life of the electric propulsion system and the spacecraft. Therefore, reducing the self-sustained operating voltage of the hollow cathode and improving the life and reliability of the hollow ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01J1/02H01J1/88
Inventor 郭宁杨威张天平贾艳辉谷增杰曹鹏
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap