Protective device for high-altitude nuclear electromagnetic pulse

Abstract

The utility model discloses a high-altitude nuclear electromagnetic pulse protection device, which comprises a shell, an input end and an output end are respectively arranged at two ends of the shell, and a filtering piece a, a protection piece a, an anti-surge resistor, a protection piece b and a filtering piece b are sequentially arranged between the input end and the output end. The beneficial effects of the utility model are that the filtering member a and the protection member a jointly form primary protection, the protection member b and the filtering member b jointly form secondary protection, and energy distribution between the primary protection and the secondary protection is adjusted through the anti-surge resistor, so that the protection member a and the protection member b are conducted under pulse voltage, electric energy is converted into heat energy to be consumed, and energy consumption is reduced. Therefore, the pulse peak is weakened repeatedly, the amplitude is reduced, and the protection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-altitude nuclear electromagnetic pulse protection, in particular to a protection device for high-altitude nuclear electromagnetic pulse. Background Technique

[0002] After a nuclear explosion, a high-altitude nuclear electromagnetic pulse radiation environment with a field strength of dozens of kilovolts per meter and a rising edge in the nanosecond order can be formed. The surge interference generated inside various unprotected electronic devices in it can cause serious damage to the devices. At present, the protection products for high-altitude nuclear electromagnetic pulse (HEMP) on the market all have unsatisfactory protection effects, that is, the residual voltage is high, the protection effect on the devices is limited, and its residual voltage is very harmful to integrated circuits with higher and higher integration levels. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a protection device for high-altitude nuclear electromagnetic pulse.

[0004] The purpose of the utility model is realized through the following technical solutions: a protection device for high-altitude nuclear electromagnetic pulse, including a housing, an input end and an output end are respectively arranged at both ends of the housing, and a filter element a, a protection element a, a surge-resistant resistor, a protection element b and a filter element b are sequentially arranged between the input end and the output end.

[0005] Preferably, both the filter element a and the filter element b are inductors, and both the filter element a and the filter element b have four inductors.

[0006] Preferably, both the protection element a and the protection element b are transient suppression diodes, and both ends of the transient suppression diodes are respectively connected to the branches where the two inductors are located.

[0007] Preferably, both the protection element a and the protection element b have two transient suppression diodes.

[0008] The utility model has the following advantages: the filter element a and the protection element a of the utility model jointly form a primary protection, the protection element b and the filter element b jointly form a secondary protection, and the energy distribution between the primary protection and the secondary protection is adjusted through the surge-resistant resistor, so that the protection element a and the protection element b are turned on under the pulse voltage, and the electric energy is converted into heat energy for consumption, thereby weakening the pulse peak multiple times, reducing the amplitude, and improving the protection efficiency. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of the external part of the protection device;

[0010] Figure 2 It is a schematic structural diagram of the electrical principle of the protection device;

[0011] Figure 3 It is a schematic structural diagram of the internal circuit of the protection device;

[0012] In the figure, 1 is the housing, 2 is the input terminal, 3 is the output terminal, 4 is the filter component a, 5 is the protection component a, 6 is the surge-resistant resistor, 7 is the protection component b, 8 is the filter component b, 9 is the inductor, and 10 is the transient suppression diode. Specific embodiments

[0013] To make the purpose, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0015] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0016] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0019] In this embodiment, as Figure 2 and Figure 3 shown, a protection device for high-altitude nuclear electromagnetic pulse includes a housing 1. Input terminals 2 and output terminals 3 are respectively arranged at both ends of the housing 1. A filtering component a4, a protection component a5, a surge-resistant resistor 6, a protection component b7, and a filtering component b8 are sequentially arranged between the input terminal 2 and the output terminal 3. The filtering component a4 and the protection component a5 together form a primary protection, and the protection component b7 and the filtering component b8 together form a secondary protection. The energy distribution between the primary protection and the secondary protection is adjusted through the surge-resistant resistor 6, so that the protection component a5 and the protection component b7 are turned on under the pulse voltage, and the electric energy is converted into heat energy for consumption, thereby weakening the pulse spikes multiple times, reducing the amplitude, and improving the protection efficiency. In this embodiment, the filtering component a4 is arranged close to the input terminal, and the filtering component b8 is arranged close to the output terminal 3.

[0020] Furthermore, as Figure 1 shown, both the filtering component a4 and the filtering component b8 are inductors 9, and both the filtering component a4 and the filtering component b8 have four inductors 9. Still further, both the protection component a5 and the protection component b7 are transient voltage suppression diodes 10. Both ends of the transient voltage suppression diode 10 are respectively connected to the branches where the two inductors 9 are located. Preferably, both the protection component a5 and the protection component b7 have two transient voltage suppression diodes 10. Specifically, the filtering component a4 and the protection component a5 together form a primary protection, that is, the inductor 9 and the inherent capacitance of the transient voltage suppression diode 10 form an LC filtering circuit to weaken the initial pulse spikes and reduce the amplitude. At this time, the transient voltage suppression diode 10 in the protection component a5 is turned on under the pulse voltage, and the electric energy is converted into heat energy for consumption, further weakening the pulse voltage spikes and reducing the amplitude. The principle of the secondary protection formed by the protection component b7 and the filtering component b8 is the same as that of the primary protection, that is, under the condition of weakening the pulse spikes in the primary stage, the pulse spikes are weakened again and the amplitude is reduced, thereby weakening the pulse spikes multiple times, reducing the amplitude, and improving the protection efficiency. The main function of the surge-resistant resistor 6 is to adjust the pulse energy distribution between the primary protection and the secondary protection, so that the main energy is consumed in the primary protection.

[0021] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-altitude nuclear electromagnetic pulse protection device, characterized in that: The invention comprises a shell (1), wherein an input end (2) and an output end (3) are respectively arranged at two ends of the shell (1), and a filter element a (4), a protective element a (5), an anti-surge resistor (6), a protective element b (7) and a filter element b (8) are arranged in sequence between the input end (2) and the output end (3).

2. The high-altitude nuclear electromagnetic pulse protection device according to claim 1 is characterized in that: The filter element a (4) and the filter element b (8) are both inductors (9), and the filter element a (4) and the filter element b (8) each have four inductors (9).

3. The high-altitude nuclear electromagnetic pulse protection device according to claim 2 is characterized in that: The protective element a (5) and the protective element b (7) are both transient voltage suppressor diodes (10), and the two ends of the transient voltage suppressor diodes (10) are respectively connected to the branches where the two inductors (9) are located.

4. The high-altitude nuclear electromagnetic pulse protection device according to claim 3 is characterized by: The protection element a (5) and the protection element b (7) each have two transient voltage suppression diodes (10).

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