Composite surge protection device with double arc extinguishing

Abstract

The invention discloses a composite surge protection device with double arc extinguishing. The composite surge protection device with the double arc extinguishing comprises a first arc extinguishing protection module and a second arc extinguishing protection module, wherein the first arc extinguishing protection module is a self-blowing arc extinguishing type graphite gap surge protection device, and the second arc extinguishing protection module is formed by connecting a piezoresistor and a discharge tube in series; the second arc extinguishing protection module is located above the first arc extinguishing protection module, and the first arc extinguishing protection module and the second arc extinguishing protection module are connected in parallel to form the composite surge protection device with double arc extinguishing. Through the first arc extinguishing protection module and the second arc extinguishing protection module which are arranged in parallel, arc extinguishing functions are added to the two protection modules, so that the composite surge protection device has high follow current interruption capability and is free of leakage current, the performance of the composite surge protection device is improved, and the service life of the composite surge protection device is prolonged.

Description

technical field [0001] The invention relates to the technical field of lightning protector alarm equipment, in particular to a composite surge protector with double arc extinguishing. Background technique [0002] Surge protector, also called surge protector (English name: Surge protection Device, referred to as: SPD), is an electronic device that provides safety protection for various electronic equipment, instruments, and communication lines. When the electrical circuit or communication line suddenly generates a peak current or voltage due to external interference, the surge protector can conduct the shunt in a very short time, so as to avoid the damage of the surge to other equipment in the circuit. [0003] The traditional composite surge protector is composed of a B-level discharge gap and a C-level voltage limiting device in parallel. Among them, only a simple insulating ring is placed in the B-level discharge gap of the traditional composite surge protector, and there...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a composite surge protector with double arc extinguishing type and its 5G power supply on-board circuit board, aiming to solve the freewheeling interruption of traditional composite surge protectors in the prior art The ability cannot meet the high freewheeling current generated under the condition of large through-current, and the technical problem of leakage current generated by voltage-limiting devices cannot be avoided

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