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Gas discharge structure capable of bearing current and electric arcs

A gas discharge and current-carrying technology, which is applied to electrical components, circuits, overvoltage arresters using spark gaps, etc., can solve the problems of electrical equipment stop working, fuses are easy to blow, etc., to improve gas ionization potential and improve circuit stability performance, the effect of improving the ability of lightning current

Pending Publication Date: 2019-10-11
XIAMEN TAIHANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the fuse passes through the lightning current, the fuse is easily blown, causing the electrical equipment to stop working.

Method used

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  • Gas discharge structure capable of bearing current and electric arcs
  • Gas discharge structure capable of bearing current and electric arcs
  • Gas discharge structure capable of bearing current and electric arcs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Existing fuses are usually filled with similar inorganic insulating materials such as quartz sand around the fuse, mainly to improve heat dissipation. Because the fuse will generate heat when passing the current, in order to avoid the situation that the passing current does not reach the overload current value but the heat accumulation caused by the untimely heat dissipation will cause the fuse to blow. However, the use of heat dissipation materials still has an upper limit of capacity. Once the lightning current voltage and current are too high, even if the current passing time is extreme, the fuse will heat up and blown, or other protection components will fail, and there is still a certain risk. This embodiment is a fuse mechanism, such as Figure 1-3 As shown, it is specifically a gas discharge structure capable of carrying current and arc, which is used to be installed between the power supply and the load and used as a device for short-circuit protection of the lo...

Embodiment 2

[0053] This embodiment is a kind of fusing mechanism, specifically a gas discharge structure capable of carrying current and arc, which is used to be installed between the power supply and the load as a device for short-circuit protection of the load, including electrodes 2 at both ends and electrodes 2 arranged between the electrodes 2. The piezoresistor between the electrodes 2 is provided with a closed space that wraps the piezoresistor, and the closed space is filled with an inert gas. Both ends are electrode 2 structures arranged symmetrically, which are used for series connection of power supply and load circuit. The piezoresistor provided in the middle is directly connected to the electrode 2, and the current enters the piezoresistor through the electrode 2 at one end and flows out from the electrode 2 at the other end after electrification.

[0054] In this embodiment, a closed space is provided around the piezoresistor and filled with inert gas. Its main function is ...

Embodiment 4

[0056] This embodiment is a kind of fusing mechanism, specifically a gas discharge structure capable of carrying current and arc, which is used to be installed between the power supply and the load as a device for short-circuit protection of the load, including electrodes 2 at both ends and electrodes 2 arranged between the electrodes 2. An inductance coil between the electrodes 2 is provided with a closed space enclosing the inductance coil, and an inert gas is filled in the closed space. Both ends are electrode 2 structures arranged symmetrically, which are used for series connection of power supply and load circuit. The inductance coil provided in the middle is directly connected to the electrode 2 , and the current enters the inductance coil through the electrode 2 at one end and flows out from the electrode 2 at the other end after electrification.

[0057] In this embodiment, a closed space is provided around the inductance coil and filled with inert gas. Its main funct...

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PUM

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Abstract

The invention discloses a gas discharge structure capable of bearing current and electric arcs, and is used for a device which is arranged between a power supply and a load and serves as a load shortcircuit protector. The gas discharge structure comprises electrodes at two ends and a protection component arranged between the electrodes; a closed space for packaging the protection component is arranged between the electrodes; and the closed space is filled with inert gas. According to the gas discharge structure, the closed space outside the electrodes and the protection component is filled with inert gas with low ionization potential, so that the original capacity that lightning current passes is improved, lightning current exceeding carrying capacity passes normally without causing the occurrence of the condition that the protection component is damaged.

Description

technical field [0001] The invention belongs to the technical field of circuit protection, and in particular relates to a gas discharge structure capable of carrying current and arc. Background technique [0002] A fuse is an electrical appliance that fuses the melt and disconnects the circuit with the heat generated by itself when the current exceeds the specified value. Fuses are widely used in high and low voltage power distribution systems and control systems, as well as electrical equipment. As short circuit and overcurrent protectors, fuses are one of the most commonly used protection devices. [0003] The fuse is to achieve the purpose of protection by generating Joule thermal fusing of the passing current through the body resistance. It is necessary to ensure that the fuse is under the impact of lightning current (I max or I imp ) not blown, Ir 2 t (actual melting heat value) must be less than If 2 t (nominal heat of fusion value). The material of the fuse deter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/02H01T4/02H01T4/12
CPCH01H85/0241H01T4/02H01T4/12
Inventor 李欣冯民学李博琛
Owner XIAMEN TAIHANG TECH
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