Small electromagnetic pulse generating device

Abstract

The invention provides a small electromagnetic pulse generation device, which comprises a pulse power supply module and a pulse generation module, the pulse power supply module comprises a pulse capacitor and a first switch, and the pulse generation module comprises a C02 phase change unit, a C02 liquid storage pipe, a stator coil, an armature, a second switch, a shell and a load; the side, close to the interior, of the stator coil is sequentially connected with the armature and the CO2 liquid storage pipe in a sleeved mode, one end of the CO2 liquid storage pipe is connected with the CO2 phase change unit, the side, close to the exterior, of the stator coil is connected with the shell in a sleeved mode, the space between the armature and the shell is filled with foamed plastic, and the load is connected with the exterior of the shell. The pulse capacitor is connected in series with the first switch, the stator coil, the armature and the load, and the second switch is connected in parallel with the pulse capacitor and the first switch. According to the unmanned aerial vehicle, harmful gas generated by explosive explosion and combustion and other attached damage effects are eliminated, the structure is simple, the size is smaller, unmanned aerial vehicle mounting is facilitated, and convenience is provided for control and transportation in the police process.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic pulses, and in particular to a small electromagnetic pulse generating device. Background Art

[0002] The magnetic flux compression generator (MFCG) is a current pulse device designed based on the magnetic field freezing effect. It uses the chemical energy of explosives to drive the circuit to deform, compress the magnetic field to do work, and reduce the circuit inductance, increase the current, and finally convert the chemical energy into electromagnetic energy. The magnetic flux compression generator can be used as an electromagnetic transmitter, plasma focusing, high-power electromagnetic radiation, laser, power supply for generating strong magnetic fields, and power supply for exciting diodes to generate strong current charged particle beams. Due to its single-use characteristics, it is mainly used as a high-power pulse source in high-energy electromagnetic weapons. The generator can be of various types such as disk type, plate type, strip type, spiral type, etc. Among them, the spiral magnetic flux compression generator (HMFCG) has a simple structure and a large initial inductance. It can capture more initial magnetic flux and thus obtain a larger current and energy magnification than other MFCGs, so it has a wide range of applications.

[0003] Electromagnetic pulses affect the normal operation of the engine system by interfering with or damaging the engine electronic control system. The vehicle engine electronic control system can be divided into sensors, electronic control units (ECUs) and actuators in terms of system composition. The sensors feed back various operating parameters of the engine system such as speed, intake pressure, oxygen concentration, etc. to the ECU. The ECU accurately controls important parameters such as injection volume and ignition advance angle based on the vehicle operating information and the ECU's built-in program, and then controls the actuator to perform various actions to ensure the normal operation of the engine.

[0004] The current means of stopping vehicles include blocking nails, barricades, and isolation piers. Their shortcomings are that they are direct contact, with large collateral damage, short range, and need to be placed in advance. They have slow reaction speed and cannot be used in a mobile manner. When the police are chasing a suspected vehicle, the existing police car cannot be remotely controlled because it does not have a remote forced stop system, resulting in a high risk of operation for law enforcement personnel and the risk of loss of control during execution; and traditional solenoid generators use TNT or other explosives to drive the armature to expand, which is not conducive to control and transportation during police use and is prone to causing additional damage. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a small electromagnetic pulse generating device to solve the technical problems that traditional solenoid generators in the prior art all use TNT or other explosives to drive the armature to expand, which is not conducive to management and transportation during police use and is prone to cause additional damage effects.

[0006] The present invention provides a small electromagnetic pulse generating device, comprising:

[0007] A pulse power supply module and a pulse generating module, wherein the pulse power supply module includes a pulse capacitor and a first switch, and the pulse generating module includes a CO2 phase change unit, a CO2 liquid storage tube, a stator coil, an armature, a second switch, a housing and a load;

[0008] The side of the stator coil close to the inside is sleeved with the armature and the CO2 liquid storage tube in sequence, one end of the CO2 liquid storage tube is connected to the CO2 phase change unit, the side of the stator coil close to the outside is sleeved with the shell, and the space between the armature and the shell is filled with foam plastic, and the load is connected to the outside of the shell;

[0009] The pulse capacitor is connected in series with the first switch, the stator coil, the armature and the load, and the second switch is connected in parallel with the pulse capacitor and the first switch.

[0010] Optionally, the stator coil comprises:

[0011] Its material is copper.

[0012] Optionally, the armature comprises:

[0013] Its material is copper.

[0014] Optionally, the CO2 liquid storage tube comprises:

[0015] Its material is aluminum.

[0016] Optionally, the CO2 phase change unit comprises:

[0017] Its material is alloy steel.

[0018] Optionally, the housing comprises:

[0019] The material is polyvinyl chloride.

[0020] Compared with the existing detection technology, the present invention has the following beneficial effects:

[0021] 1. Use liquid carbon dioxide phase change explosion technology to replace explosives. Carbon dioxide phase change explosion technology has the advantages of being clean and pollution-free, safe and controllable, and highly versatile and integrated. It eliminates harmful gases and other collateral damage produced by the explosion and combustion of explosives, and is beneficial to environmental protection and safe use.

[0022] 2. The present invention has a simple structure and a smaller size, which is conducive to the mounting of drones and provides convenience for the control and transportation during police use.

[0023] 3. The present invention can realize rapid deployment of mobile vehicles by combining with a drone, achieving strikes without collateral damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of part of the operation process of the present invention;

[0028] Figure 3 It is a circuit connection schematic diagram of the present invention.

[0029] Explanation of the accompanying drawings: 1. pulse capacitor; 2. first switch; 3. second switch; 4. C02 phase change unit; 5. stator coil; 6. armature; 7. C02 liquid storage tube; 8. load; 9. foam plastic; 10. shell; 11. carbon dioxide phase change explosion detonation product; 12. carbon dioxide detonation wave front. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other implementation cases obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The functional units with the same labels in the examples of the present invention have the same and similar structures and functions.

[0031] See also Figure 1 The present invention provides a small electromagnetic pulse generating device, comprising:

[0032] A pulse power supply module and a pulse generating module, wherein the pulse power supply module comprises a pulse capacitor 1 and a first switch 2, and the pulse generating module comprises a CO2 phase change unit 4, a CO2 liquid storage tube 7, a stator coil 5, an armature 6, a second switch 3, a housing 10 and a load 8;

[0033] The side of the stator coil 5 close to the inside is sleeved with the armature 6 and the C02 liquid storage tube 7 in sequence, one end of the C02 liquid storage tube 7 is connected to the C02 phase change unit 4, the side of the stator coil 5 close to the outside is sleeved with the shell 10, and the space between the armature 6 and the shell 10 is filled with foam plastic 9, and the load 8 is connected to the outside of the shell 10;

[0034] The pulse capacitor 1 is connected in series with the first switch 2 , the stator coil 5 , the armature 6 and the load 8 , and the second switch 3 is connected in parallel with the pulse capacitor 1 and the first switch 2 .

[0035] In this embodiment, the present invention drives the armature 6 to expand by detonating the explosive, and when the armature 6 contacts the second switch 3, the pulse capacitor 1 is short-circuited, and the pulse power supply module and the load 8 form a separate circuit, thereby capturing the magnetic flux; due to the freezing effect of the magnetic field, as the detonation proceeds, the conically expanded armature 6 moves forward, short-circuiting the outer stator coil 5 turn by turn, and compressing the magnetic field at the same time, converting part of the chemical energy of the explosive into electromagnetic energy, and finally outputting a pulse current amplified by dozens or hundreds of times on the load 8.

[0036] See also Figure 2 Specifically, the pulse capacitor 1 and the first switch 2 first discharge into the loop formed by the stator coil 5 and the load 8, and the current generates magnetic flux in the space formed by the stator coil 5 and the load 8 to establish the initial magnetic flux.

[0037] Then, the CO2 phase change unit 4 is used to detonate the CO2 liquid storage tube 7, in which liquid carbon dioxide is stored. Figure 2 As shown, after the carbon dioxide phase change explosion detonation product 11 is detonated, the liquid carbon dioxide detonation wave front 12 advances forward (to the right), the armature 6 expands, and when the armature 6 contacts the second switch 3, the pulse capacitor 1 is short-circuited. The delay time can be controlled by the CO2 phase change unit 4, so that the initial moment of the short-circuited stator coil 5 coincides with the moment when the pulse capacitor 1 discharges to the maximum current.

[0038] Secondly, the loop formed by the stator coil 5, the armature 6, the load 8, etc. captures the magnetic field, and the initial current in the loop is the maximum discharge current of the pulse capacitor 1. As the detonation of the CO2 storage tube 7 moves forward (to the right), the inductance of the stator coil 5 continues to decrease. Due to the principle of conservation of magnetic flux, the magnetic flux remains unchanged, the inductance of the loop decreases, and the current in the loop increases, thereby achieving current amplification.

[0039] Finally, after the operation of the carbon dioxide phase change explosion solenoid type explosive magnetic compression generator of the present invention is completed, the load 8 can obtain a current that is amplified by dozens to hundreds of times. In addition, in order to achieve the above operation, the setting of the C02 phase change unit 4 in the present invention is adapted to the initial circuit delay time, and the detonation time is consistent with the initial moment of the stator coil 5 short circuit and the moment when the capacitor discharge reaches the maximum current. Suppose the time interval from the start of the discharge of the pulse capacitor 1 to the current reaching the maximum value is, that is, the time interval from the start of the discharge of the pulse capacitor 1 to the detonation of the liquid carbon dioxide by the carbon dioxide phase change device 4 until the stator coil 5 is short-circuited, and the time interval from the start of the discharge of the C02 phase change unit 4 to the start of the detonation of the liquid carbon dioxide is t s =t c -t e , the required reaction time of CO2 phase change unit 4 is L = D·t s =D·(t c -t e ).

[0040] The present invention utilizes the phase change explosion of liquid carbon dioxide to drive the armature 6 to expand forward in a cone shape, short-circuiting the outer stator coil 5 turn by turn, thereby compressing the magnetic field. A cylindrical CO2 liquid storage tube 7 is installed inside the stator coil 5 of the traditional generator. The stator coil 5 is fixed and insulated by foam plastic 9. After the phase change explosion of liquid carbon dioxide, when it encounters the stator coil 5 buried in the foam plastic 9, it destroys the foam plastic 9 layer and the insulating skin of the stator coil 5. Therefore, like a traditional generator, the armature 6 can be driven to expand, short-circuiting the stator coil 5 turn by turn, thereby making the "load 8-conductor-armature 6-stator coil 5" circuit conductive, and the magnetic field is compressed by the carbon dioxide phase change explosion product, and the amplified current is output.

[0041] See also Figure 3 , C is the pulse capacitor 1, L c and R c is the internal inductance and resistance of pulse capacitor 1, L g0 and R g0 is the initial inductance and resistance of the pulse generation module, L f and R f The load is 8 inductors and resistors, L z and R z are stray inductance and resistance in the loop, S1 is the first switch 2, and S2 is the second switch 3.

[0042] See also Figure 3When the pulse capacitor 1 directly discharges to the stator coil 5 to establish an initial magnetic flux, when the pulse current released by the pulse capacitor 1 reaches a maximum value, the armature 6 contacts the second switch 3 under the detonation drive, that is, S2 in the figure is closed. At this time, the generator starts to run, the pulse capacitor 1 is short-circuited, and the voltage at both ends of it no longer rises. The generator and the load form a loop, compressing the magnetic flux and amplifying the current.

[0043] In another embodiment, the stator coil 5 is made of copper.

[0044] In another embodiment, the armature 6 is made of copper.

[0045] In another embodiment, the CO2 liquid storage tube 7 is made of aluminum.

[0046] In another embodiment, the CO2 phase change unit 4 is made of high-strength alloy steel.

[0047] In another embodiment, the shell 10 is made of polyvinyl chloride.

[0048] The present invention not only utilizes liquid carbon dioxide phase change explosion technology to replace explosives, but also has the advantages of cleanliness, no pollution, good safety and controllability, and high versatility and integration. It eliminates harmful gases and other collateral damage produced by the explosion and combustion of explosives, which is beneficial to environmental protection and safe use. The present invention has a simple structure and a smaller size, which is conducive to the mounting of drones and provides convenience for management and transportation during police use. It can also be combined with a cross-country drone to achieve rapid deployment of mobile vehicles and achieve strikes without collateral damage.

[0049] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0050] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A small electromagnetic pulse generating device, characterized in that: include: A pulse power supply module and a pulse generating module, wherein the pulse power supply module includes a pulse capacitor and a first switch, and the pulse generating module includes a CO2 phase change unit, a CO2 liquid storage tube, a stator coil, an armature, a second switch, a housing and a load; The side of the stator coil close to the inside is sleeved with the armature and the CO2 liquid storage tube in sequence, one end of the CO2 liquid storage tube is connected to the CO2 phase change unit, the side of the stator coil close to the outside is sleeved with the shell, and the space between the armature and the shell is filled with foam plastic, and the load is connected to the outside of the shell; The pulse capacitor is connected in series with the first switch, the stator coil, the armature and the load, and the second switch is connected in parallel with the pulse capacitor and the first switch.

2. The small electromagnetic pulse generating device according to claim 1, characterized in that: The stator coil comprises: Its material is copper.

3. The small electromagnetic pulse generating device according to claim 1, characterized in that: The armature comprises: Its material is copper.

4. The small electromagnetic pulse generating device according to claim 1, characterized in that: The CO2 liquid storage tube comprises: Its material is aluminum.

5. The small electromagnetic pulse generating device according to claim 1, characterized in that: The CO2 phase change unit comprises: Its material is alloy steel.

6. The small electromagnetic pulse generating device according to claim 1, characterized in that: The housing comprises: The material is polyvinyl chloride.

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