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Electromagnetic pulse protector

An electromagnetic pulse and protector technology, applied in the field of electronics, can solve the problems of electromagnetic compatibility filter unable to carry transient high energy, slow response speed of lightning arrester, unable to solve the problem of full frequency high energy filtering, etc., to achieve miniaturization and integration , the effect of short transient action time and high intensity

Inactive Publication Date: 2016-11-09
徐晖
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Problems solved by technology

However, in the face of electromagnetic pulses, the lightning arrester will have the problem of too slow response speed, and the electromagnetic compatibility filter cannot carry the transient high energy, let alone solve the problem of high energy filtering in the whole frequency band

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[0022] In order to make the object, technical solution and technical effect of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.

[0023] In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner ", "outside" and other expressions indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and do not indicate or imply the specific installation and operation orientation that the described device or component must have, so it cannot be understood as a reference to this Invention Limitations.

[0024] In the description o...

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Abstract

The invention discloses an electromagnetic pulse protector. The electromagnetic pulse protector comprises a low frequency protection unit and a medium-high frequency protection unit connected to an output end of the low frequency protection unit. The low frequency protection unit comprises a lightning arrester, a time delay inductor and a piezoresistor. The time delay inductor prolongs the electromagnetic pulse action time. The lightning arrester and the piezoresistor absorb electromagnetic pulse low frequency energy. The medium-high frequency protection unit comprises an LC resonance circuit, a filtering inductor and a feedthrough filter. The LC resonance circuit absorbs electromagnetic pulse medium frequency energy. The filtering inductor absorbs electromagnetic pulse medium-high frequency energy. The feedthrough filter absorbs electromagnetic pulse high frequency energy. Compared with the prior art, the modes of time delaying, filtering absorption, resonance bypasses and radio frequency shielding are adopted, so that an electromagnetic pulse current is attenuated to the normal work rang of a protected device; in addition, the functions of a lightning-protection and electromagnetic compatibility filter integrated, so that the miniaturization and integration of the device are realized.

Description

technical field [0001] The invention belongs to the field of electronic technology, and more specifically, the invention relates to an electromagnetic pulse protector. Background technique [0002] Electromagnetic pulse radiation is a violent electromagnetic pulse signal generated by nature (such as the violent activity of sunspots) or man-made (such as the detonation of electromagnetic bombs or nuclear bombs). Electromagnetic pulse radiation has the characteristics of high intensity, fast action time, and wide coverage frequency. [0003] The research on the electromagnetic pulse waveform has found that the rising edge of the waveform is very short, usually only a few ns, and the intensity is high, with a peak value exceeding 5kA. When the electromagnetic pulse impact of this waveform acts on the power line or equipment, even if the equipment is equipped with a lightning arrester, the speed of the electromagnetic pulse is much higher than the response speed of the lightnin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/02H02H9/04
CPCH02H9/02H02H9/04
Inventor 徐晖
Owner 徐晖
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