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Gas discharge tube and a manufacturing method

A technology for a gas discharge tube and a manufacturing method, applied in the field of discharge tubes, can solve problems such as poor voltage protection level stability, and achieve the effects of small breakdown voltage fluctuation, avoiding melting and sputtering, and good voltage protection level stability

Pending Publication Date: 2021-07-16
SHENZHEN RUILONGYUAN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a gas discharge tube and its manufacturing method, so as to solve the technical problem in the prior art that the voltage protection level of the gas discharge tube with a lower breakdown voltage is poorly stable

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  • Gas discharge tube and a manufacturing method
  • Gas discharge tube and a manufacturing method

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Embodiment Construction

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are indicated by the same or similar elements or elements having the same or similar functions. The following is exemplary, and is intended to be used to explain the present application without understanding the limitation of the present application.

[0034] In the description of this application, it is to be understood that the terms "length", "width", "upper", "lower", "front", "post", "left", "right", "vertical", The orientation relationship between "horizontal", "top", "bottom", "outside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, just to facilitate the description of this application and simplified description, not Indicates or implies that the device or element must have a specific orientation, constructed and operated in a particula...

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Abstract

The invention belongs to the technical field of discharge tubes, and provides a gas discharge tube and a manufacturing method. The gas discharge tube comprises two electrodes and an insulating tube body, the insulating tube body and the two electrodes define a containing cavity, the containing cavity is used for containing an insulating gas, and electron emitters are fixedly arranged on the surfaces, located in the containing cavity, of the electrodes; and each electron emitter comprises graphite with the mass fraction of 70%-100% and titanium dioxide with the mass fraction of 0%-30%. According to the gas discharge tube provided by the invention, the work function of each electron emitter is small, and the time for forming electron collapse between the two electrodes is short so that the response time of the gas discharge tube is short, a breakdown voltage is low, and the gas discharge tube can quickly discharge a surge and can adapt to the requirement of an electrical element on the low breakdown voltage; and each electron emitter has the stable work function, stable emitted electron density and high-temperature electric arc resistance so that the phenomena of melting, sputtering and the like of the electrodes can be avoided, and the breakdown voltage fluctuation of the gas discharge tube is small.

Description

Technical field [0001] The present application relates to the technical field of discharge tubes, refers to a gas discharge tube and a manufacturing method thereof. Background technique [0002] Gas discharge tube is a switch type protection device, usually used as an overvoltage protection device. The currently used gas discharge tube typically includes an electrode that is sealed at both ends thereof. An appropriate amount of an inert gas medium is filled between the insulating tubular body and the two ends, and the electrode is applied to the surface of the two electrodes (e.g., electron powder), and when the voltage across the gas discharge tube is more than the gas When the breakdown voltage, a gap discharge is caused, and the gas discharge tube is rapidly changed from a high resistance to a low-impedance, which is turned on, thereby protecting other devices in parallel with the gas discharge tube. [0003] With the popularity of mobile terminals, the requirements of electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T4/12H01T4/02H01T21/00
CPCH01T4/12H01T4/02H01T21/00H01T1/22H01T4/04
Inventor 郑传啸王炎林王旭明胡勇
Owner SHENZHEN RUILONGYUAN ELECTRONICS