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Gas gathering type vacuum pump and manufacturing and use methods thereof

A technology of gas capture and vacuum pumps, which is applied in the direction of pumps, electrical components, electric tubes/lamp exhaust, etc. It can solve the problems of high working voltage, magnetic field generation, and unusability, and achieve low working voltage, long life, and small size. Effect

Pending Publication Date: 2018-06-22
NO 12 RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of cold titanium pumps are high working voltage (requires thousands of volts), large volume and magnets, which will generate magnetic fields when working, and cannot be used in vacuum electronics that have strict requirements on magnetic fields.

Method used

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  • Gas gathering type vacuum pump and manufacturing and use methods thereof
  • Gas gathering type vacuum pump and manufacturing and use methods thereof
  • Gas gathering type vacuum pump and manufacturing and use methods thereof

Examples

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Embodiment Construction

[0030] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0031] Figure 1 and figure 2 As shown, the gas-trapping vacuum pump provided in this embodiment is also called a heat pump 100, and includes a tubular casing 1, also called a pump casing, and a cathode assembly 110 and an anode 120 vacuum-packed in the tubular casing. The vacuum pump further includes an end cover 2 located at one end of the housing, and the end cover 2 includes an exhaust pipe 3 communicating with the inner cavity for connecting the vacuum pump 100 according to the present invention with an external vacuu...

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Abstract

The invention discloses a gas gathering type vacuum pump which comprises a shell, a needle sealing ceramic core column with multiple guide needles, a cathode assembly and an anode. The cathode assembly comprises two cathodes. According to the technical scheme, the two cathodes are arranged in the vacuum pump, and therefore the vacuum pump is small and exquisite in size, compact in structure, low in work voltage, free of magnets, long in service life and wide in application range and can serve as a vacuum maintaining unit of a small vacuum electronic device. The invention further provides manufacturing and use methods of the gas gathering type vacuum pump.

Description

technical field [0001] The invention relates to the field of vacuum electronic devices. More specifically, it relates to a gas trapping vacuum pump and methods of making and using the same. Background technique [0002] Vacuum electronic devices are widely used in various fields such as national economy, national defense and military affairs, etc. Life is one of the important indicators of vacuum electronic devices, and the life of vacuum electronic devices depends on the emission capability of the cathode of the vacuum pump and the vacuum degree in the tube of the vacuum electronic device. Vacuum electronic devices are composed of many different parts. After assembly, welding, exhaust and other processes, the vacuum devices must be separated from the exhaust system. In the later period of power-on aging, testing, and life-span, the parts in the vacuum electronic device will release gas after being bombarded by electrons. The various harmful gases remaining in the vacuum el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B37/02H01J9/385H01J7/22
CPCH01J7/22H01J9/385F04B37/02
Inventor 邵文生于志强高玉娟
Owner NO 12 RES INST OF CETC
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