A fire bomb and its system with a function of safely controlling electric energy initiation

Abstract

The present invention provides a fire bomb and its system with a function of safely controlling electric energy detonation, which includes a projectile shell, a fire bomb body, a stabilizing rod, a mortar component, a tail fin component and a projectile-electric interface component. The fire bomb body is filled with a fire extinguishing agent. An electric energy detonation control device is installed in the inner cavity of the stabilizing rod. The tail fin component includes a tail fin propellant tube. A piston centering part is provided at the bottom of the stabilizing rod. A propellant ignition device is arranged in the tail fin propellant tube. One end of the propellant ignition device is arranged in the shaft hole of the piston centering part and is connected to the control end of the electric energy detonation control device. Propellant is provided at the flash hole of the tail fin propellant tube. Under its combustion, chamber pressure is formed in the inner cavity of the mortar component, pushing the piston centering part to drive the stabilizing rod and the fire bomb body to move. Compared with the prior art, the present invention has the advantages of rapid and convenient fire extinguishing, high safety performance, simple operation, can be widely applied to gun-launched fire bombs, rocket fire bombs, fire aviation bombs, etc., and can effectively protect the lives of firefighters.

Description

Technical Field

[0001] The present invention relates to the technical field of fire bombs, and particularly to a fire bomb with an intelligent delay setting for flight ballistic trajectory landing or airburst and having a safe control of electric energy initiation function, and a system applying the fire bomb. Background Art

[0002] In existing electric detonators or contact fuzes with high mechanical sensitivity, the firing elements (resistance wire ignition heads or firing pins) all adopt the "combustion to detonation" mechanism, so that the electric detonators or fuzes are filled with initiating explosives with extremely high mechanical sensitivity (such as nickel hydrazine nitrate, dinitro diazophenol, lead azide).

[0003] However, electric detonators or fuzes with initiating explosive charge structures are high-risk products, which makes the fire bombs equipped with electric detonators or leads extremely prone to explosion accidents during daily production, transportation, storage, and use, thus causing huge potential safety hazards. Summary of the Invention

[0004] The main object of the present invention is to provide a fire bomb with a safe control of electric energy initiation function. Compared with the prior art, the fire bomb has rapid and convenient fire extinguishing, high safety performance, simple operation, can avoid explosion accidents that are extremely prone to occur during daily production, transportation, storage, and use of the fire bomb, can be widely applied to gun-launched fire bombs, rocket fire bombs, and fire aviation bombs, etc., and can effectively protect the lives of firefighters.

[0005] Another object of the present invention is to provide a fire bomb system with a safe control of electric energy initiation function including the above fire bomb.

[0006] To achieve the above main object, the present invention provides a fire bomb with a safe control of electric energy initiation function, which includes a projectile shell, a fire bomb body arranged at the end of the projectile shell, a stabilizing rod arranged in the projectile shell, a mortar component, a tail fin component, and a projectile electric interface component arranged at the other end of the projectile shell; the fire bomb body is filled with a fire extinguishing agent, the projectile shell is tightly connected with the stabilizing rod, an electric energy initiation control device is installed in the inner cavity of the stabilizing rod, and the signal output end of the electric energy initiation control device is connected to the explosive component in the fire bomb body; the tail fin component includes a tail fin propellant tube, a piston centering part is arranged at the bottom of the stabilizing rod, a propellant ignition device is arranged in the tail fin propellant tube, one end of the propellant ignition device is arranged in the shaft hole of the piston centering part and is connected to the control end of the electric energy initiation control device, and propellant is arranged at the fire transfer hole of the tail fin propellant tube, and its combustion causes the formation of chamber pressure in the inner cavity of the gun mount component to generate an outward impulse force, which pushes the piston centering part to drive the stabilizing rod and the fire bomb body to move.

[0007] In a further solution, a wind cap is provided at the end of the fire bomb body. A central core high explosive tube is also provided inside the fire bomb body, and secondary high explosive is filled in the central core high explosive tube to form the explosive assembly of the fire bomb body.

[0008] In a still further solution, the electric energy initiating control device includes a plastic-sealed body housing, a digital circuit board, electrode wires, a plasma igniter, a metal tube, and a three-strand insulated wire. One end of the electrode wire is welded to the plasma igniter, and the other end of the electrode wire is welded to the digital circuit board. The plasma igniter is closely attached to one end face of the small diameter shaft of the plastic-sealed body housing. The opening of the metal tube is sleeved outside the small diameter shaft of the plastic-sealed body housing. The inside of the metal tube is filled with primary high explosive, and the bottom of the metal tube is closely attached to the secondary high explosive of the central core high explosive tube. The port surface of the primary high explosive is closely attached to the firing surface of the plasma igniter. One end of the three-strand insulated wire is connected to the digital circuit board, and the other end of the three-strand insulated wire is connected to the propellant ignition device.

[0009] In a still further solution, the propellant ignition device includes an igniter housing, gunpowder, an igniter circuit board, a metal film electric igniter, a two-strand insulated wire, and a plastic sealing cap. One end of the igniter circuit board is connected to the three-strand insulated wire and then injection-molded and sealed in the shaft hole of the piston centering part. The other end of the igniter housing is injection-molded into a tubular structure, and gunpowder is filled in the tubular structure. A plastic sealing cap is provided at the mouth of the tubular structure. The other end of the igniter circuit board is welded with a two-strand insulated wire, and a metal film electric igniter is also provided on the igniter circuit board. The metal film electric igniter is connected between the three-strand insulated wire and the two-strand insulated wire.

[0010] In a still further solution, the C wire of the three-strand insulated wire is welded to one end of the metal film electric igniter, the B wire of the three-strand insulated wire is welded to the other end of the metal film electric igniter, and the A and B wires of the three-strand insulated wire and the A and B wires of the two-strand insulated wire are welded correspondingly.

[0011] In a still further solution, the metal film electric igniter is connected to the control end of the electric energy initiating control device. When the electric energy initiating control device is energized to fire, it stimulates the metal film electric igniter to discharge in the tubular structure, causing the gunpowder to deflagrate. The deflagration gas flow passes through the fire transfer hole in the tail fin propellant tube, igniting the propellant to burn rapidly in the gun mount assembly to form chamber pressure, which pushes the piston centering part to drive the tail fin propellant tube, the stabilizer rod, and the fire bomb to move.

[0012] In a further solution, the elastic-electric interface component includes an elastic-electric interface housing. Inside the elastic-electric interface housing, there is a bottom circuit board, a B-electrode conductive ring, and an A-electrode conductive pin base. The B-electrode conductive ring and the A-electrode conductive pin base are respectively welded to the B and A wires of the twisted-insulated wire.

[0013] In a further solution, the mortar component includes a mortar barrel. A gun mount hinge is installed at the end of the mortar barrel. Inside the mortar barrel, there are a gun mount electrical interface and a gun mount insulating sleeve. Inside the gun mount insulating sleeve, there is an A-electrode needle rod. The gun mount electrical interface body has a ring-shaped protruding electrode relative to the B-electrode conductive ring, and this ring-shaped protruding electrode is in contact with the concave electrode of the B-electrode conductive ring. The protruding electrode of the A-electrode needle rod is in contact with the concave electrode of the A-electrode conductive pin base.

[0014] In a further solution, a network interface socket is provided on the outer side of the mortar barrel. The network interface socket is threadedly connected to the gun mount electrical interface. A socket insulating sleeve is sleeved inside the network interface socket. Inside the socket insulating sleeve, there is a socket conductive rod; the socket conductive rod is in electrical contact with the A-electrode needle rod.

[0015] In a further solution, the digital circuit board includes a first-stage voltage stabilizing circuit, a microprocessor circuit, an electric energy initiating drive circuit, and a launch ignition circuit. The launch ignition circuit accesses the ignition signal of the metal film electric igniter. The launch ignition circuit is electrically connected to the first-stage voltage stabilizing circuit. The first-stage voltage stabilizing circuit is electrically connected to the microprocessor circuit. The microprocessor circuit is electrically connected to the electric energy initiating drive circuit.

[0016] In a further solution, the first-stage voltage stabilizing circuit includes a field-effect transistor NM1, a triode T1, and a voltage stabilizing diode W1. The drain of the field-effect transistor NM1 is connected to the terminal A. The gate of the field-effect transistor NM1 is connected to the collector of the triode T1. The source of the field-effect transistor NM1 is connected to the negative electrode of the voltage stabilizing diode W1. The positive electrode of the voltage stabilizing diode W1 is connected to the gate of the triode T11. A capacitor C1 and a resistor R2 are also connected at the connection between the positive electrode of the voltage stabilizing diode W1 and the gate of the triode T11. A resistor R1 is also connected between the gate and the drain of the field-effect transistor NM1.

[0017] In a further embodiment, the microprocessor circuit includes a microprocessor IC1, transistors Ti1 - Ti2, a zener diode Wi1, and a diode Di. The collector of the transistor Ti1 is connected to the source of the field effect transistor NM1. The emitter of the transistor Ti1 is connected to the positive electrode of the diode Di. The negative electrode of the diode Di is connected to the VCC terminal of the microprocessor IC1. The base of the transistor Ti1 is connected to the negative electrode of the zener diode Wi1. The emitter of the transistor Ti2 is connected between the emitter of the transistor Ti1 and the positive electrode of the diode Di. The collector of the transistor Ti2 is connected to the negative electrode of the diode Di. The base of the transistor Ti2 is connected to the TXD terminal of the microprocessor IC1.

[0018] In a further embodiment, the electric energy detonation driving circuit includes a high - voltage field effect transistor NM2, transistors TD1 - TD2, and a plasma igniter DHJ. The P3.3 terminal of the microprocessor IC1 is connected to the base of the transistor TD1. The collector of the transistor TD1 is connected to the base of the transistor TD2. The collector of the transistor TD2 is connected to the gate of the high - voltage field effect transistor NM2. The drain of the high - voltage field effect transistor NM2 is connected to the plasma igniter DHJ.

[0019] In a further embodiment, the emission ignition circuit includes a field effect transistor PM, a transistor TF, a diode DF, and a capacitor CF. The gate of the field effect transistor PM is connected to the collector of the transistor TF. The source of the field effect transistor PM is connected to the terminal block C. The emitter of the transistor TF is connected to the terminal block B. The base of the transistor TF is connected to a resistor RF3. Resistors RF2 and RF1 are respectively connected to the gate and the drain of the field effect transistor PM. The negative electrode of the diode DF is connected to the drain of the field effect transistor PM and the capacitor CF. The positive electrode of the diode DF is connected to a resistor RF4.

[0020] To achieve the above - mentioned another object, a fire bomb system with a safe - controlled electric - energy detonation function provided by the present invention includes a network - controlled launch operator and a fire bomb with a safe - controlled electric - energy detonation function as described above. The network - controlled launch operator is connected to the network interface socket of each fire bomb through a two - wire bus and a connector.

[0021] It can be seen that in the present invention, the electric energy stored in the high-voltage capacitor is discharged in the plasma igniter through intelligent circuit control, generating a high-voltage, high-temperature, and high-speed plasma shock wave to detonate the primary explosive in the center of the fire extinguishing bomb. As a result, there is no need to install an electric detonator or fuse initiation device with a very high mechanical sensitivity in the fire extinguishing bomb, thus forming an intrinsically safe digital control electric energy initiation fire extinguishing bomb. Thereby, remote fire extinguishing can be implemented, ensuring the safety of rescue personnel, guaranteeing the safe and reliable use of the fire extinguishing bomb, having a good fire extinguishing effect, being simple and convenient to operate, having good practicability, and being widely applicable for supporting use with fire fighting equipment.

[0022] In addition, the output signal from the electric energy initiation control device is sent to the propellant ignition device, which can control or cut off the ignition power supply, being convenient, flexible, and capable of real-time control, thus achieving the effect of safety management. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of an embodiment of a fire extinguishing bomb with a function of safely controlling electric energy initiation according to the present invention.

[0024] Figure 2 is an enlarged schematic structural diagram of the electric energy initiation control device in an embodiment of a fire extinguishing bomb with a function of safely controlling electric energy initiation according to the present invention.

[0025] Figure 3 is an enlarged schematic structural diagram of the propellant ignition device in an embodiment of a fire extinguishing bomb with a function of safely controlling electric energy initiation according to the present invention.

[0026] Figure 4 is an enlarged schematic structural diagram of the gun mount electrical interface in an embodiment of a fire extinguishing bomb with a function of safely controlling electric energy initiation according to the present invention.

[0027] Figure 5 is the circuit schematic diagram of the electric energy initiation control device in an embodiment of a fire extinguishing bomb with a function of safely controlling electric energy initiation according to the present invention.

[0028] Figure 6 is the schematic diagram of the principle of an embodiment of a fire extinguishing bomb system with a function of safely controlling electric energy initiation according to the present invention.

[0029] The present invention will be further described below in conjunction with the drawings and embodiments. Detailed Embodiment

[0030] To make the above objects, features, and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0031] An embodiment of a fire bomb with a function of safe control of electric energy detonation:

[0032] See Figures 1 to 5 , a fire bomb with a function of safe control of electric energy detonation according to the present invention includes a projectile shell, a fire bomb body 10 arranged at the end of the projectile shell, a stabilizing rod 30 arranged in the projectile shell, a mortar component, a tail fin component and a projectile electric interface component arranged at the other end of the projectile shell.

[0033] In this embodiment, the fire bomb body 10 is filled with a fire extinguishing agent 13. The projectile shell is tightly connected to the stabilizing rod 30. An electric energy detonation control device 20 is installed in the inner cavity of the stabilizing rod 30. The signal output end of the electric energy detonation control device 20 is connected to the explosive component in the fire bomb body 10.

[0034] In this embodiment, the tail fin component includes a tail fin 90 and a tail fin propellant tube 60. A piston centering part 40 is arranged at the bottom of the stabilizing rod 30. An ignition device for the propellant is arranged in the tail fin propellant tube 60. One end of the ignition device for the propellant is arranged in the shaft hole of the piston centering part 40 and is connected to the control end of the electric energy detonation control device 20. A propellant 70 is arranged at the flash hole of the tail fin propellant tube 60. Under its combustion, chamber pressure is formed in the inner cavity of the gun seat assembly to generate an outward impact force, which pushes the piston centering part 40 to drive the stabilizing rod 30 and the fire bomb body 10 to move.

[0035] Among them, a wind cap 11 is arranged at the end of the fire bomb body 10. A core booster tube 12 is also arranged in the fire bomb body 10. Secondary booster explosive 14 is filled in the core booster tube 12 to form the explosive component of the fire bomb body 10.

[0036] In this embodiment, the electric energy detonation control device 20 includes a plastic-sealed body shell, a digital circuit board 21, electrode wires 22, a plasma igniter 23, a metal tube 24 and a three-strand insulated wire 27. One end of the electrode wire 22 is welded to the plasma igniter 23, and the other end of the electrode wire 22 is welded to the digital circuit board 21; the plasma igniter 23 is closely attached to one end face of the small diameter shaft of the plastic-sealed body shell, and the opening part of the metal tube 24 is sleeved outside the small diameter shaft of the plastic-sealed body shell; primary booster explosive 25 is filled inside the metal tube 24. The bottom of the metal tube 24 is closely attached to the secondary booster explosive 14 of the core booster tube 12. The port powder surface of the primary booster explosive 25 is closely attached to the firing surface of the plasma igniter 23. One end of the three-strand insulated wire 27 is connected to the digital circuit board 21, and the other end of the three-strand insulated wire 27 is connected to the ignition device for the propellant.

[0037] In this embodiment, the propellant ignition device includes an igniter housing 50, gunpowder 51, an igniter circuit board 52, and a metal film electric igniter 53. One end of the igniter circuit board 52 is connected to a three-strand insulated wire 27 and then injection-molded and sealed in the shaft hole of the piston centering part 40. The other end of the igniter housing 50 is injection-molded into a tubular structure, and the tubular structure is filled with gunpowder 51. A plastic sealing cap 55 is provided at the mouth of the tubular structure. The other end of the igniter circuit board 52 is welded with a two-strand insulated wire 54. A metal film electric igniter 53 is also provided on the igniter circuit board 52. The metal film electric igniter 53 is connected between the three-strand insulated wire 27 and the two-strand insulated wire 54.

[0038] Among them, the C wire of the three-strand insulated wire 27 is welded to one end of the metal film electric igniter 53, the B wire of the three-strand insulated wire 27 is welded to the other end of the metal film electric igniter 53, and the A and B wires of the three-strand insulated wire 27 and the A and B wires of the two-strand insulated wire 54 are correspondingly welded.

[0039] In this embodiment, the metal film electric igniter 53 is connected to the control end of the electric energy initiating control device 20. The electric energy initiating control device 20 is energized to fire, exciting the metal film electric igniter 53 to discharge in the tubular structure, causing the gunpowder 51 to deflagrate. The deflagration gas flow passes through the fire transfer hole in the fin propellant tube 60, igniting the propellant 70 to burn rapidly in the gun seat assembly to form chamber pressure, pushing the piston centering part 40 to drive the fin propellant tube 60, the stabilizer rod 30, and the fire extinguishing bomb to move.

[0040] In this embodiment, the bullet-electric interface assembly includes a bullet-electric interface housing 80. Inside the bullet-electric interface housing 80, there are a bullet-bottom circuit board 81, a B electrode conductive ring 82, and an A electrode conductive pin seat 83. The B electrode conductive ring 82 and the A electrode conductive pin seat 83 are correspondingly welded to the B and A wires of the two-strand insulated wire 54.

[0041] In this embodiment, the mortar assembly includes a mortar barrel 120. A gun seat hinge 130 is installed at the end of the mortar barrel 120. A gun seat electric interface 110 and a gun seat insulating sleeve 111 are provided inside the mortar barrel 120. An A electrode needle rod 112 is provided inside the gun seat insulating sleeve 111. The body of the gun seat electric interface 110 has a ring-shaped protruding electrode relative to the B electrode conductive ring 82, and the ring-shaped protruding electrode contacts the concave electrode of the B electrode conductive ring 82. The protruding electrode of the A electrode needle rod 112 contacts the concave electrode of the A electrode conductive pin seat 83.

[0042] Among them, a network interface socket 100 is provided on the outside of the mortar barrel 120. The network interface socket 100 is threadedly connected to the gun seat electric interface 110. A socket insulating sleeve 101 is sleeved in the network interface socket 100. A socket conductive rod 102 is provided inside the socket insulating sleeve 101. The socket conductive rod 102 is in electrical contact with the A electrode needle rod 112.

[0043] In this embodiment, the digital circuit board 21 includes a first-stage voltage stabilizing circuit 211, a microprocessor circuit 212, an electric energy initiating drive circuit 213, and a transmitting ignition circuit 214. The transmitting ignition circuit 214 accesses the ignition signal of the metal film electric igniter 53. The transmitting ignition circuit 214 is electrically connected to the first-stage voltage stabilizing circuit 211, the first-stage voltage stabilizing circuit 211 is electrically connected to the microprocessor circuit 212, and the microprocessor circuit 212 is electrically connected to the electric energy initiating drive circuit 213.

[0044] Further, the first-stage voltage stabilizing circuit 211 includes a field effect transistor NM1, a triode T1, and a voltage stabilizing diode W1. The drain of the field effect transistor NM1 is connected to the terminal A. The gate of the field effect transistor NM1 is connected to the collector of the triode T1. The source of the field effect transistor NM1 is connected to the negative electrode of the voltage stabilizing diode W1. The positive electrode of the voltage stabilizing diode W1 is connected to the gate of the triode T11. A capacitor C1 and a resistor R2 are also connected to the connection point between the positive electrode of the voltage stabilizing diode W1 and the gate of the triode T11. A resistor R1 is also connected between the gate and the drain of the field effect transistor NM1.

[0045] Further, the microprocessor circuit 212 includes: a microprocessor IC1, triodes Ti1 - Ti2, a voltage stabilizing diode Wi1, and a diode Di. The collector of the triode Ti1 is connected to the source of the field effect transistor NM1. The emitter of the triode Ti1 is connected to the positive electrode of the diode Di. The negative electrode of the diode Di is connected to the VCC terminal of the microprocessor IC1. The base of the triode Ti1 is connected to the negative electrode of the voltage stabilizing diode Wi1. The emitter of the triode Ti2 is connected between the emitter of the triode Ti1 and the positive electrode of the diode Di. The collector of the triode Ti2 is connected to the negative electrode of the diode Di. The base of the triode Ti2 is connected to the TXD terminal of the microprocessor IC1.

[0046] Further, the electric energy initiating drive circuit 213 includes: a high-voltage field effect transistor NM2, triodes TD1 - TD2, and a plasma igniter 23. The P3.3 terminal of the microprocessor IC1 is connected to the base of the triode TD1. The collector of the triode TD1 is connected to the base of the triode TD2. The collector of the triode TD2 is connected to the gate of the high-voltage field effect transistor NM2. The drain of the high-voltage field effect transistor NM2 is connected to the plasma igniter 23.

[0047] Further, the launch ignition circuit 214 includes: a field effect transistor PM, a triode TF, a diode DF, and a capacitor CF. The gate of the field effect transistor PM is connected to the collector of the triode TF. The source of the field effect transistor PM is connected to the terminal C. The emitter of the triode TF is connected to the terminal B. A resistor RF3 is connected to the base of the triode TF. Resistors RF2 and RF1 are respectively connected to the gate and the drain of the field effect transistor PM. The negative pole of the diode DF is connected to the drain of the field effect transistor PM and the capacitor CF. A resistor RF4 is connected to the positive pole of the diode DF.

[0048] The fire bomb with the function of safely controlling electric energy detonation of the present invention specifically consists of a fire bomb shell, a wind cap 11, a core main explosive tube 12, a fire extinguishing agent 13, a secondary main explosive 14, an electric energy detonation control device 20, a stabilizing rod 30, a piston centering part 40, a launch charge ignition device, a tail wing launch charge tube 60, a launch charge 70, a bullet electric interface, a tail wing 90, a network interface socket 100, a gun seat electric interface 110, a mortar barrel 120, a gun seat hinge 130, etc.

[0049] Preferably, the fire bomb shell, the wind cap 11, and the core main explosive tube 12 are all injection-molded from ABS engineering plastics; the fire extinguishing agent 13 is a dry powder fire extinguishing agent or a liquid fire extinguishing agent; the primary and secondary main explosives are RDX, TNT main explosives or emulsion explosives; the stabilizing rod 30, the piston centering part 40, the tail wing launch charge tube 60, the tail wing 90, the gun seat electric interface 110, the mortar barrel 120, and the gun seat hinge 130 are all made of steel materials.

[0050] As Figure 2 As shown, for further optimization and explanation, the electric energy detonation control device 20 of this embodiment includes: a plastic-sealed body shell, a digital circuit board 21, electrode wires 22, a plasma igniter 23, a metal tube 24, a primary main explosive 25, a connecting body 26, and a three-strand insulated wire 27. Among them, the electric energy detonation control device 20 is an integrated plastic-sealed body, and the digital circuit board 21, the electrode wires 22, and the plasma igniter 23 are plastic-sealed in the plastic-sealed body; the electrode wires 22 are two copper wires, one end of the two copper wires is welded in the plasma igniter 23, and the other end is welded in the digital circuit board 21; the plasma igniter 23 extends out of the end face of the small-diameter shaft close to the plastic-sealed body shell; the inside of the metal tube 24 is filled with the primary main explosive 25, and the end face of the primary main explosive 25 is close to the ignition surface of the plasma igniter 23; the opening part of the metal tube 24 is sleeved outside the small-diameter shaft extended by the plastic-sealed body and is press-fitted and sealed; the metal tube 24 and the primary main explosive 25 filled inside are inserted into the core main explosive tube 12 together, and the bottom of the metal tube 24 is close to the secondary main explosive 14; the three-strand insulated wire 27 is three mutually insulated copper wires A, B, and C.

[0051] Among them, an electric energy initiating control device 20 is installed inside the cavity of the stabilizer bar 30. The stabilizer bar 30 and the fire bomb shell are tightly connected by plastic encapsulation. The connecting body 26 is an ABS plastic connecting body, which is connected to the electric energy initiating control device 20 by threads.

[0052] As Figure 3 shown, the propellant ignition device of this embodiment includes: an igniter housing 50, gunpowder 51, an igniter circuit board 52, a metal film electric igniter 53, a twisted pair insulated wire 54, and a plastic sealing cap 55. Among them, one end inside the igniter housing 50, one end of the igniter circuit board 52, and the three-strand insulated wire 27 are injection-molded and sealed in the shaft hole of the piston centering part 40. The other end inside the igniter housing 50 is injection-molded into a tube shape, and gunpowder 51 is filled inside the tube. There is a plastic sealing cap 55 at the tube orifice; the three-strand insulated wire 27, the twisted pair insulated wire 54, and the metal film electric igniter 53 are respectively welded on the igniter circuit board 52.

[0053] Among them, the three-strand insulated wire 27 is divided into A, B, and C wires. Its C wire is welded to one end of the metal film electric igniter 53, and its B wire is welded to the other end of the metal film electric igniter 53; the A and B wires of the three-strand insulated wire 27 are correspondingly welded to the A and B wires of the twisted pair insulated wire 54.

[0054] Therefore, through the program control of the electric energy initiating control device 20, the metal film electric igniter 53 is excited to discharge electricity inside the tube by being energized and ignited, causing the gunpowder 51 to deflagrate. The deflagrating gas flow passes through the flash holes in the tail wing propellant tube 60, ignites the propellant 70, and burns rapidly in the mortar bore to form chamber pressure, which drives the piston centering part 40 to drive the tail wing propellant tube 60, the stabilizer bar 30, and the fire bomb to move together, and is launched at a certain muzzle velocity.

[0055] As Figure 4 shown, the bullet-electric interface assembly and the mortar assembly of this embodiment specifically include: a bullet-electric interface housing 80, a bullet bottom circuit board 81, a B electrode conductive ring 82, an A-level conductive pin base, a network interface socket 100, a socket insulating sleeve 101, a socket conductive rod 102, a gun seat electric interface 110, a gun seat insulating sleeve 111, an A electrode pin rod 112, a mortar barrel 120, and a gun seat hinge 130, etc.

[0056] Among them, the bullet-electric interface is made of high-strength plastic injection molding. The injection molding interior includes a bullet-bottom circuit board 81, a B-electrode conductive ring 82, and an A-electrode conductive pin base 83. The B, A wires of the B-electrode conductive ring 82, the A-electrode conductive pin base 83, and the twisted pair insulated wire 54 are correspondingly welded. The network interface socket 100 is an interface socket that connects to the network control transmitter-operating device through a two-wire bus. The network interface socket 100 is connected to the gun seat electric interface 110 through a metal thread. A socket insulating sleeve 101 is sleeved in the network interface socket 100, and a socket conductive rod 102 is provided at the center of the socket insulating sleeve 101. The body of the gun seat electric interface 110 is the electrode B. There is an A-electrode needle rod 112 in the gun seat insulating sleeve 111 of the body, and the A-electrode needle rod 112 is in electrical contact with the socket conductive rod 102. The body of the gun seat electric interface 110 has an annular convex electrode relative to the B-electrode conductive ring 82, and this annular convex electrode is in contact with the concave electrode of the B-electrode conductive ring 82. The convex electrode of the central A-electrode needle rod 112 is in contact with the concave electrode of the A-electrode conductive pin base 83.

[0057] As Figure 5 shown, the electric energy initiation control device 20 of this embodiment includes a first-stage voltage stabilizing circuit 211, a microprocessor circuit 212, an electric energy initiation driving circuit 213, and an emission ignition circuit 214.

[0058] Among them, the first-stage voltage stabilizing circuit 211 includes: field effect transistor NM1, triode T1, voltage stabilizing diode W1, resistors R1-R2, and capacitor C1; the microprocessor circuit 212 includes: microprocessor IC1, triodes Ti1-Ti2, voltage stabilizing diode Wi1, diode Di, resistors Ri1-Ri5, and capacitor CC; the electric energy initiation driving circuit 213 includes: high-voltage field effect transistor NM2, triodes TD1-TD2, diode DW, current-limiting resistor RW, resistors RD1-RD5, plasma igniter 23 (DHJ), and high-voltage capacitor Cg; the emission ignition circuit 214 includes: field effect transistor PM, triode TF, diode DF, resistors RF1-RF4, and capacitor CF.

[0059] Among them, the digital circuit board 21 further includes a terminal block A, a terminal block B, and a terminal block C. A metal film electric igniter 53 (Fh) is connected between the terminal block C and the terminal block B. A two-wire power supply voltage VAB provided by the network control transmitter-operating device is connected between the terminal block A and the terminal block B. The two-wire and power supply voltage VAB provided by the network control transmitter-operating device is a two-wire bus that provides a shared DC voltage VAB ≤ 150V and communication modulation voltage VAB ≤ 36V.

[0060] In practical applications, when the fire bomb is loaded into the mortar barrel 120, the bomb electrical interface at the bottom of the fire bomb contacts the gun mount electrical interface 110. Then, the network control launch operator accesses the network interface socket 100 through the two-wire bus A and B electrodes. At this time, the metal body of the network interface socket 100 and the gun mount electrical interface 110 is the B electrode, and the socket conductive rod 102 in the center of the network interface socket 100 is in electrical contact with the A electrode pin 112 in the gun mount electrical interface 110 as the A electrode. The A electrode and the B electrode are transferred to the twisted insulated wire 54 through the bottom-of-bomb circuit board 81 inside the bomb electrical interface. The other end of the twisted insulated wire 54 is correspondingly connected to the A and B pad ends of the igniter circuit board 52. The A, C, and B pad ends of the igniter circuit board 52 are connected to the three-strand insulated wire 27. A metal film electric igniter 53 (Fh) is welded between the C and B pad ends. The other end of the three-strand insulated wire 27 is connected to the A, B, and C pad ends in the digital circuit board 21. The D and E ends in the digital circuit board 21 are connected to the plasma igniter 23.

[0061] When the network control launch operator provides a DC voltage VAB≤150V through the two-wire bus A and B electrodes and accesses the network interface socket 100, there is a DC voltage VAB≤150V between the terminal A and the terminal B in the electric energy initiation control device 20 circuit. At this time, the DC voltage VAB≤150V charges the high-voltage capacitor Cg through the diode DW and the current-limiting resistor RW.

[0062] When the network control launch operator provides a DC voltage VAB≤36V through the two-wire bus A and B electrodes and accesses the network interface socket 100, a 15V voltage is output through the first-stage voltage stabilization circuit 211. One path of the output 15V voltage supplies power to the microprocessor circuit 212. A 3.6V voltage stabilization power supply composed of the triode Ti1, the zener diode Wi1, the diode Di, the resistor Ri1, and the capacitor CC in the microprocessor circuit 212 supplies power to the microprocessor IC1. The other path of the output 15V voltage supplies power to the launch ignition circuit 214. The 15V voltage charges the capacitor CF through the resistor RF4 and the diode DF. At this time, the switching circuit composed of the field effect transistor PM, the triode TF, and the resistors RF1 - RF3 is in the cut-off state, and the metal film electric igniter 53 (Fh) connected between the terminal C and the terminal B does not fire and is in a waiting state.

[0063] When the network control launch operator communicates with the electric energy initiation control device 20 circuit through the two-wire bus A and B electrodes, the network control launch operator sends a modulated voltage signal Vf through the two-wire bus A and B electrodes and inputs it to the terminal A and B of the electric energy initiation control device 20 circuit. The modulated voltage signal Vf is divided by the resistors Ri3 - Ri4 and input to the communication serial port RXD pin of the microprocessor IC1.

[0064] When the electric energy initiating control device 20 circuit communicates with the network control transmitting operator, a logic level is sent out from the communication serial port TXD pin of the microprocessor IC1, and an current modulation signal If is formed through the resistor Ri5, the triode Ti2, and the resistor Ri2. The current modulation signal If is sent back to the network control transmitting operator for reception through the terminal A and B of the electric energy initiating control device 20 circuit and the two-wire bus.

[0065] Among them, the communication between the network control transmitting operator and the electric energy initiating control device 20 circuit through the two-wire bus is half-duplex communication, and the network control transmitting operator sets, manages, and controls the working state of the electric energy initiating control device 20 circuit through programs, as well as functions such as setting the flight ballistic impact time of the fire extinguishing bomb and issuing the launch command.

[0066] The P3.2 port of the microprocessor IC1 is connected to the base of the triode TF. When the network control transmitting operator does not issue a launch command, the P3.2 port of the microprocessor IC1 is at a low level, and the triode TF and the field effect transistor PM are cut off and non-conductive; when the network control transmitting operator issues a launch command, at this time the P3.2 port of the microprocessor IC1 is at a high level, the triode TF and the field effect transistor PM are turned on, and the electric energy stored in the capacitor CF discharges through the metal film electric igniter 53 (Fh) connected by the terminal C and B to ignite the gunpowder 51 and deflagrate. The deflagrating gas flow then ignites the propellant 70.

[0067] The P3.3 port of the microprocessor IC1 is connected to the base of the triode TD1 in the electric energy initiating drive circuit 213. The drive circuit of the plasma igniter 23 (DHJ) is composed of the triodes TD1-TD2, the high-voltage field effect transistor NM2, the resistors RD1-RD5, and the high-voltage capacitor Cg. When the P3.3 port of the microprocessor IC1 is at a low level, the drive circuit is cut off. When the P3.3 port of the microprocessor IC1 is at a high level, it is controlled by the delay time set by the internal program of the microprocessor IC1. The delay time is set in the internal program of the microprocessor IC1 by the network control transmitting operator through the two-wire bus before launching the fire extinguishing bomb. The starting time is when the propellant 70 is ignited to launch the fire extinguishing bomb and the delay time starts to be calculated. The end of the delay time is the time when the fire extinguishing bomb meets the requirements of the program-set flight ballistic impact point to initiate the fire extinguishing bomb. At this time, the P3.3 port of the microprocessor IC1 jumps from a low level to a high level, driving the drive circuit composed of the triodes TD1-TD2 and the high-voltage field effect transistor NM2, making the high-voltage field effect transistor NM2 turn on, and the electric energy stored in the high-voltage capacitor Cg discharges in the circuit of the field effect transistor NM2 and the plasma igniter 23 (DHJ). Then, a high-voltage, high-temperature, and high-speed plasma shock wave is generated in the center of the plasma igniter 23 (DHJ) to initiate the primary explosive 25, and then the primary explosive 25 detonates the secondary explosive 14.

[0068] In addition, the plasma igniter 23 (DHJ) of this embodiment is fabricated by using a vacuum sputtering metal coating process on a thin insulating plate or a printed circuit board process to etch micron-scale metal bridge foil lines and metallized holes D and E connecting the metal bridge foils, or the welding ends of metallized D and metallized E electrode wires 22 in a metal foil film; the resistance value at both ends of the metal bridge foil is ≤0.1 mΩ.

[0069] Thus, it can be seen that the present invention controls the discharge of the electric energy stored in the high-voltage capacitor in the plasma igniter 23 through an intelligent circuit, generating a high-voltage, high-temperature, and high-speed plasma shock wave to detonate the primary explosive in the center of the fire extinguishing bomb, so that it is not necessary to install an electric detonator or fuse initiation device with very high mechanical sensitivity in the fire extinguishing bomb. Furthermore, a fire extinguishing bomb with an intrinsically safe digital control electric energy initiation is formed, thereby enabling long-distance fire extinguishing, ensuring the safety of rescue personnel, guaranteeing the safe and reliable use of the fire extinguishing bomb, having a good fire extinguishing effect, being simple and convenient to operate, having good practicability, and being widely applicable for supporting use with fire fighting equipment.

[0070] In addition, the electric energy initiation control device 20 outputs a signal to the propellant ignition device, which can control or cut off the ignition power supply, being convenient, flexible, and capable of real-time control, thus achieving the effect of safety management.

[0071] An embodiment of a fire extinguishing bomb system with a function of safely controlling electric energy initiation:

[0072] As Figure 6 shown, the present invention provides a fire extinguishing bomb system with a function of safely controlling electric energy initiation, including a network control launch operator 200 and a plurality of the above-mentioned fire extinguishing bombs with a function of safely controlling electric energy initiation (such as P1, P2...Pn). The network control launch operator 200 is connected to the network interface socket 100 of each fire extinguishing bomb through a two-wire bus 210 and a connector 220.

[0073] When the network control launch operator 200 communicates with the electric energy initiation control device 20 circuit through the A and B electrodes of the two-wire bus 210, the network control launch operator 200 sends a modulated voltage signal Vf on the A and B electrodes of the two-wire bus 210 to the terminal A and B of the electric energy initiation control device 20 circuit. The modulated voltage signal Vf is divided by the resistors Ri3 - Ri4 of the microprocessor circuit 212 and input to the communication serial port RXD pin of the microprocessor IC1.

[0074] When the electric energy initiation control device 20 circuit communicates with the network control launch operator 200, a logic level is sent from the communication serial port TXD pin of the microprocessor IC1 to form a current modulation signal If through the resistors Ri5, the triode Ti2, and the resistor Ri2. The current modulation signal If is transmitted back to the network control launch operator 200 for reception through the terminal A and B of the electric energy initiation control device 20 circuit and the two-wire bus 210.

[0075] Among them, the communication between the network control transmitter 200 and the electric energy initiation control device 20 circuit through the two-wire bus 210 is half-duplex communication, and the network control transmitter 200 sets, manages, and controls the working state of the electric energy initiation control device 20 circuit through programs, as well as functions such as setting the landing time of the fire extinguishing bomb flight trajectory and issuing launch commands.

[0076] It should be noted that the above embodiments are only the preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention fall within the protection scope required by the present invention.

Claims

1. A fire bomb with a function of safe control of electric energy detonation, characterized in that, it includes: a projectile shell, a fire bomb body arranged at the end of the projectile shell, a stabilizing rod arranged in the projectile shell, a mortar component arranged at the other end of the projectile shell, a tail fin component and a projectile electric interface component; wherein, the projectile shell is injection molded with ABS engineering plastic; the fire bomb body is filled with a fire extinguishing agent, the projectile shell is tightly connected with the stabilizing rod, an electric energy detonation control device is installed in the inner cavity of the stabilizing rod, and the signal output end of the electric energy detonation control device is connected with the explosive component in the fire bomb body; the tail fin component includes a tail fin propellant tube, a piston centering part is arranged at the bottom of the stabilizing rod, a propellant ignition device is arranged in the tail fin propellant tube, one end of the propellant ignition device is arranged in the shaft hole of the piston centering part and is connected with the control end of the electric energy detonation control device, propellant is arranged at the fire transfer hole of the tail fin propellant tube, and under its combustion, chamber pressure is formed in the inner cavity of the mortar component to generate an outward impact force, pushing the piston centering part to drive the stabilizing rod and the fire bomb body to move; a wind cap is arranged at the end of the fire bomb body, and a core booster tube is also arranged in the fire bomb body, and secondary booster is filled in the core booster tube to form the explosive component of the fire bomb body; the electric energy detonation control device includes a plastic-sealed body shell, a digital circuit board, electrode wires, a plasma igniter, a metal tube and a three-strand insulated wire, one end of the electrode wire is welded in the plasma igniter, the other end of the electrode wire is welded in the digital circuit board, the plasma igniter is closely attached to one end face of the small-diameter shaft of the plastic-sealed body shell, the opening part of the metal tube is sleeved outside the small-diameter shaft of the plastic-sealed body shell, primary booster is filled inside the metal tube, the bottom of the metal tube is closely attached to the secondary booster of the core booster tube, the port powder surface of the primary booster is closely attached to the ignition surface of the plasma igniter, one end of the three-strand insulated wire is connected to the digital circuit board, and the other end of the three-strand insulated wire is connected with the propellant ignition device; the propellant ignition device includes an igniter shell, gunpowder, an igniter circuit board and a metal film electric igniter, one end of the igniter circuit board is connected with the three-strand insulated wire and then injection molded and sealed in the shaft hole of the piston centering part, the other end of the igniter shell is injection molded into a tubular structure, gunpowder is filled in the tubular structure, a plastic sealing cap is arranged at the pipe orifice of the tubular structure, the other end of the igniter circuit board is welded with a two-strand insulated wire, and a metal film electric igniter is also arranged on the igniter circuit board, and the metal film electric igniter is connected between the three-strand insulated wire and the two-strand insulated wire.

2. The fire bomb according to claim 1, characterized in that: the C wire of the three-strand insulated wire is welded to one end of the metal film electric igniter, the B wire of the three-strand insulated wire is welded to the other end of the metal film electric igniter, and the A and B wires of the three-strand insulated wire and the A and B wires of the two-strand insulated wire are correspondingly welded.

3. The fire bomb according to claim 2, characterized in that: the metal film electric igniter is connected to the control end of the electric energy initiation control device, and the metal film electric igniter is energized and ignited through the electric energy initiation control device to discharge in the tubular structure, so as to cause the gunpowder to deflagrate. The deflagrating gas flow passes through the fire transfer hole in the tail fin propellant tube, ignites the propellant, and burns rapidly in the mortar assembly to form chamber pressure, which pushes the piston centering part to drive the tail fin propellant tube, the stabilizing rod and the fire bomb to move.

4. The fire bomb according to claim 2, characterized in that: the bullet electric interface assembly includes a bullet electric interface housing, and inside the bullet electric interface housing, there are a bullet bottom circuit board, a B electrode conductive ring and an A electrode conductive pin seat. The B electrode conductive ring and the A electrode conductive pin seat are respectively welded to the B and A wires of the twisted insulated wire.

5. The fire bomb according to claim 4, characterized in that: the mortar assembly includes a mortar barrel, a gun mount hinge is installed at the end of the mortar barrel, a gun mount electric interface and a gun mount insulating sleeve are arranged inside the mortar barrel, an A electrode needle rod is arranged inside the gun mount insulating sleeve, and a ring-shaped convex electrode is provided on the gun mount electric interface body relative to the B electrode conductive ring. The ring-shaped convex electrode is in contact with the concave electrode of the B electrode conductive ring, and the convex electrode of the A electrode needle rod is in contact with the concave electrode of the A electrode conductive pin seat.

6. The fire bomb according to claim 5, characterized in that: a network interface socket is arranged on the outer side of the mortar barrel, the network interface socket is threadedly connected to the gun mount electric interface, a socket insulating sleeve is sleeved in the network interface socket, and a socket conductive rod is arranged inside the socket insulating sleeve; the socket conductive rod is in electrical contact with the A electrode needle rod.

7. The fire bomb according to claim 6, characterized in that: the digital circuit board includes a first-stage voltage stabilizing circuit, a microprocessor circuit, an electric energy initiation driving circuit and a launch ignition circuit. The launch ignition circuit accesses the ignition signal of the metal film electric igniter, the launch ignition circuit is electrically connected to the first-stage voltage stabilizing circuit, the first-stage voltage stabilizing circuit is electrically connected to the microprocessor circuit, and the microprocessor circuit is electrically connected to the electric energy initiation driving circuit.

8. The fire bomb according to claim 7, characterized in that: the first-stage voltage stabilizing circuit includes a field effect transistor NM1, a triode T1, and a voltage stabilizing diode W1. The drain of the field effect transistor NM1 is connected to the terminal A, the gate of the field effect transistor NM1 is connected to the collector of the triode T1, the source of the field effect transistor NM1 is connected to the negative electrode of the voltage stabilizing diode W1, the positive electrode of the voltage stabilizing diode W1 is connected to the gate of the triode T1, and a capacitor C1 and a resistor R2 are also connected to the connection point between the positive electrode of the voltage stabilizing diode W1 and the gate of the triode T1. A resistor R1 is also connected between the gate and the drain of the field effect transistor NM1.

9. The fire bomb according to claim 8, characterized in that: The microprocessor circuit includes a microprocessor IC1, a triode Ti1, a triode Ti2, a zener diode Wi1, and a diode Di. The collector of the triode Ti1 is connected to the source of the field effect transistor NM1. The emitter of the triode Ti1 is connected to the positive electrode of the diode Di. The negative electrode of the diode Di is connected to the VCC terminal of the microprocessor IC1. The base of the triode Ti1 is connected to the negative electrode of the zener diode Wi1. The emitter of the triode Ti2 is connected between the emitter of the triode Ti1 and the positive electrode of the diode Di. The collector of the triode Ti2 is connected to the negative electrode of the diode Di. The base of the triode Ti2 is connected to the TXD terminal of the microprocessor IC1.

10. The fire bomb according to claim 9, characterized in that: The electric energy detonation drive circuit includes a high-voltage field effect transistor NM2, a triode TD1, a triode TD2, and a plasma igniter DHJ. The P3.3 terminal of the microprocessor IC1 is connected to the base of the triode TD1. The collector of the triode TD1 is connected to the base of the triode TD2. The collector of the triode TD2 is connected to the gate of the high-voltage field effect transistor NM2. The drain of the high-voltage field effect transistor NM2 is connected to the plasma igniter DHJ.

11. The fire bomb according to claim 10, characterized in that: The launch ignition circuit includes a field effect transistor PM, a triode TF, a diode DF, and a capacitor CF. The gate of the field effect transistor PM is connected to the collector of the triode TF. The source of the field effect transistor PM is connected to the terminal block C. The emitter of the triode TF is connected to the terminal block B. A resistor RF3 is connected to the base of the triode TF. Resistors RF2 and RF1 are respectively connected to the gate and drain of the field effect transistor PM. The negative electrode of the diode DF is connected to the drain of the field effect transistor PM and the capacitor CF. A resistor RF4 is connected to the positive electrode of the diode DF.

12. A fire bomb system with a safety control electric energy detonation function, characterized in that, comprising: A network control launch operator and a fire bomb with a safety control electric energy detonation function according to any one of claims 6 to 11. The network control launch operator is connected to the network interface socket of each fire bomb through a two-wire bus and a connector.

Images