CN217182947U

CN217182947U - Electromagnetic pulse protector of signal double-line

Info

Publication number: CN217182947U
Application number: CN202220868185.8U
Authority: CN
Inventors: 朱远; 郑刚; 孙赫然
Original assignee: Beijing Wangda Shijia Technology Development Co ltd
Current assignee: Beijing Wangda Shijia Technology Development Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-12
Anticipated expiration: 2032-04-15

Abstract

The utility model relates to the technical field of electromagnetic pulse protection, in particular to a signal double-line electromagnetic pulse protector, which comprises a primary protection unit module and a secondary protection unit module which are connected through a protection circuit, wherein the primary protection unit module and the secondary protection unit module are arranged along the input end of the protection circuit to the output end, and an inductance element is connected in series on the protection circuit between the primary protection unit module and the secondary protection unit module; the utility model provides a signal double-line electromagnetic pulse protector which can be used for protecting signal double-line lines such as telephone lines, signal lines, low-voltage power supply lines and protected end equipment; when being attacked by electromagnetic pulse or microwave weapons, the signal double-line electromagnetic pulse protector can shield and release high voltage and high current generated by the coupling action of the line, effectively protect the line and electronic equipment, and improve the capability of the equipment to cope with complex electromagnetic environment.

Description

Electromagnetic pulse protector of signal double-line

Technical Field

The utility model relates to an electromagnetic pulse protection technical field, concretely relates to signal double-line's electromagnetic pulse protector.

Background

The attack of the electromagnetic pulse on the electronic equipment has three main characteristics of high energy, high speed and wide influence. The energy is high and is expressed in that the limit field intensity of the electromagnetic pulse can reach 50 KV/M; the high speed is shown in that the action time of the electromagnetic pulse can reach 2-5 nanoseconds at the fastest speed; the influence is widely shown in that the influence damage range of the high-altitude nuclear electromagnetic pulse can cover the whole city. The technology development of electromagnetic pulse weapons and microwave weapons is becoming more mature in many technologically developed countries. The attack accuracy is further improved, and the target equipment can be attacked accurately in a small range. The destructive attack of electromagnetic pulses or electromagnetic pulse weapons on electronic devices is distinguished from the approaches and can be divided into two categories. Namely radiative coupling and conductive coupling; radiation coupling, namely electric field radiation generated by electromagnetic pulses directly acts on the exposed surface of the electronic equipment, and is coupled through an internal metal wire or an external metal shell of the electronic equipment to generate overvoltage current so as to destroy electronic components in the electronic equipment; conductive coupling, i.e., the action of an electric field generated by electromagnetic pulses, connects exposed cables of electronic devices, such as antenna data line power supply lines, etc., and overvoltage currents are transmitted through the lines to affect destruction of the electronic devices.

In the past, for the attack characteristics of high electromagnetic pulse energy, high speed and wide influence, the protection scheme mainly takes shielding as a main part, namely, the whole area is sealed by using metal with good conductivity in a certain space to form a Faraday cage, and protective equipment is placed in the Faraday cage to achieve the protection effect. Aiming at the characteristics of small size, accurate attack range and the like of an electromagnetic pulse weapon or a microwave weapon, all lines of equipment cannot be protected by adopting the conventional shielding scheme; such as bare signals, telephones, low voltage power supply lines, etc.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a signal double-line electromagnetic pulse protector, which can aim at the characteristics of small volume, accurate attack range and the like of electromagnetic pulse weapon or microwave weapon protection; the influence of electromagnetic pulse on signal lines, telephone lines, low-voltage power supply lines and other lines is prevented, and the conductive coupling damages electronic equipment; and has the characteristics of small volume, mobility, convenient installation and the like.

The utility model adopts the technical proposal that: a signal double-wire electromagnetic pulse protector comprises a primary protection unit module and a secondary protection unit module which are connected through a protection circuit, wherein the primary protection unit module and the secondary protection unit module are arranged from the input end to the output end of the protection circuit, and an inductance element is connected in series on the protection circuit between the primary protection unit module and the secondary protection unit module; the primary protection unit module is used for performing primary protection on a circuit, isolating energy and guiding the energy to be grounded; the secondary protection unit module is used for clamping leakage current and voltage to a range which can be borne by equipment; the inductive element decouples the various voltage limiting elements and limits the discharge current through the secondary protection cell module.

The technical scheme adopts a plurality of modules to realize the protection of the circuit; the primary protection unit module can achieve quick response within 5 nanoseconds when the protection circuit is influenced by overvoltage current; the circuit is roughly protected, and energy is isolated and guided to be grounded; the inductance element can decouple various voltage limiting elements and limit discharge current passing through the secondary protection unit module; the secondary protection unit module can further release the surge current. The leakage current and voltage are clamped to a range that can be tolerated by the device. The technical scheme is used for ensuring that a protected power supply circuit and equipment are effectively protected in a complex electromagnetic environment through the synergistic effect of the multi-stage protection modules.

Further, a barrier housing accommodating the primary and secondary protection unit modules is further included, and divides the protection circuit into a protected end and an unprotected end.

Further, the protector housing is installed using a feed-through test.

Further, one side of the protected end of the protection circuit is provided with a pair of connecting terminals for connecting protection equipment.

Further, one side of the unprotected end of the protection circuit is provided with a pair of connecting terminals for connecting a circuit.

Further, the protector shell is of an aluminum alloy structure.

The utility model has the advantages that: the utility model provides a signal double-line electromagnetic pulse protector which can be used for protecting a telephone line, a signal line, a low-voltage power supply line and other signal double-line lines and protected end equipment; when being attacked by electromagnetic pulse or microwave weapons, the signal double-line electromagnetic pulse protector can shield and release high voltage and high current generated by the coupling action of the line, effectively protect the line and electronic equipment, and improve the capability of the equipment to cope with complex electromagnetic environment; has higher practical value and popularization value.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic connection diagram of a signal two-wire electromagnetic pulse protector according to an embodiment of the present invention.

Fig. 2 is a structural diagram of a signal two-wire electromagnetic pulse protector according to an embodiment of the present invention.

Fig. 3 is an installation diagram of the electromagnetic pulse protector with two signal lines according to an embodiment of the present invention.

Reference numerals: the protection circuit 100, the primary protection unit module 200, the secondary protection unit module 300, the inductance element 400, the protector housing 500, the protected terminal 510, the unprotected terminal 520, and the connection terminal 600.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1 to 3, an embodiment of the present invention provides a signal two-wire electromagnetic pulse protector, which can be used for protecting equipment such as a telephone line, a signal line, a low-voltage power supply line, and other signal two-wire lines; the protection circuit specifically comprises a primary protection unit module 200 and a secondary protection unit module 300 which are connected through the protection circuit 100, wherein the primary protection unit module 200 and the secondary protection unit module 300 are arranged from the input end to the output end of the protection circuit 100; in addition, an inductance element 400 is connected in series to the protection circuit 100 between the primary protection unit module 200 and the secondary protection unit module 300; the primary protection unit module is used for performing primary protection on a circuit, isolating energy and guiding the energy to be grounded; the secondary protection cell module 300 is used to clamp leakage current and voltage to a range that can be tolerated by the device; the inductive element 400 decouples various voltage limiting elements and limits the discharge current through the secondary protection cell module 300.

As shown in fig. 1 to fig. 3, with the above arrangement, the present embodiment adopts a plurality of modules to implement line protection, wherein the primary protection unit module 200 can perform fast response within 5 nanoseconds when the protection circuit 100 is affected by an overvoltage current; the circuit is roughly protected, and energy is isolated and guided to be grounded; the inductive element 400 connected in series between the primary protection cell module 200 and the secondary protection cell module 300 can decouple various voltage limiting elements and limit a discharge current through the secondary protection cell module 300; the secondary protection unit module 300 can further discharge the inrush current. Clamping leakage current and voltage to be within a range which can be borne by equipment; the embodiment is used for ensuring that the protected power supply circuit and the equipment are effectively protected under the complex electromagnetic environment through the synergistic effect of the multi-stage protection modules.

As shown in fig. 1 to 3, in order to facilitate installation use, the present embodiment provides a barrier housing 500 for accommodating the primary and secondary

protection unit modules

200 and 300, the barrier housing 500 dividing the protection circuit 100 into a protected terminal 510 and an unprotected terminal 520; in practical applications, the protector housing 500 of the present device is preferably made of an aluminum alloy with good electrical conductivity, and in most cases, a feed-through test installation method is used; the circuit is effectively protected, and the whole appearance is of a cylindrical screw structure. The advantage of the protector housing 500 separating the line into a protected end 510 and an unprotected end 520 is; when the protection circuit is attacked by electromagnetic pulses or microwave weapons, the generated overvoltage overcurrent can enter the protected side of the circuit only after being released by the filtering and shielding of the signal double-wire electromagnetic pulse protector; thereby realizing the protection mode of single point access.

As shown in fig. 1 to 3, the present embodiment is further provided with a pair of connection terminals 600 for connecting a protection device on the side of the protected end 510 of the protection circuit 100. Thus, the protected terminal 510 can be used as an output port connection protector for signals, telephones, low-voltage power supplies, and other two-wire lines. The connecting mode can be welded or fixedly connected by screws. The unprotected end 520 side of the protection circuit 100 is provided with a pair of connection terminals 600 for connecting a wire. The protection end can also be used for connecting a signal, a telephone, a low-voltage power supply and other double lines as an input port with a protector; the connection mode can be welded or fixedly connected by screws; the connection terminal 600 is preferably a FASTON flat terminal structure, which can improve connection convenience.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A signal double-wire electromagnetic pulse protector is characterized in that; comprises a primary protection unit module (200) and a secondary protection unit module (300) connected by a protection circuit (100);

the primary protection unit module (200) and the secondary protection unit module (300) are arranged from the input end to the output end of the protection circuit (100), and an inductance element (400) is connected in series on the protection circuit (100) between the primary protection unit module (200) and the secondary protection unit module (300);

the primary protection unit module (200) is used for carrying out primary protection on a circuit, isolating energy and guiding the circuit to be grounded; the secondary protection unit module (300) is used for clamping leakage current and voltage to a range which can be borne by equipment; the inductive element (400) decouples various voltage limiting elements and limits the discharge current through the secondary protection cell module (300).

2. The signal two-wire electromagnetic pulse protector of claim 1, wherein;

further comprising a barrier housing (500) accommodating the primary protection unit module (200) and the secondary protection unit module (300), the barrier housing (500) dividing the protection circuit (100) into a protected end (510) and an unprotected end (520).

3. The signal two-wire electromagnetic pulse protector of claim 2, wherein;

the guard housing (500) is installed using a feed-through trial.

4. The signal two-wire electromagnetic pulse protector of claim 2, wherein;

one side of the protected end (510) of the protection circuit (100) is provided with a pair of connection terminals (600) for connecting protection equipment.

5. The signal two-wire electromagnetic pulse protector of claim 2, wherein;

a pair of connecting terminals (600) for connecting the lines is arranged on the unprotected end (520) side of the protection circuit (100).

6. The signal two-wire electromagnetic pulse protector of claim 2, wherein;

the protector shell (500) is of an aluminum alloy structure.