A non-lethal bullet electric ignition device

Abstract

The present invention provides a non-lethal bullet electric ignition device, which relates to the technical field of electric ignition devices. The non-lethal bullet electric ignition device comprises a cover plate (1), a primer (2), an ignition charge column (3), a compressed copper ring (4), a nickel-chromium alloy film ignition component (5), an insulating injection molded sleeve (6), and a core electrode (7); the nickel-chromium alloy film ignition component (5) is electrically connected to the primer (2) through the compressed copper ring (4), and is electrically connected to the core electrode (7) through direct contact; the ignition charge column (3) is located in a cavity of the upper charge of the primer (2); the ignition current is input through the core electrode (7), passes through the nickel-chromium alloy film ignition component (5), and finally flows out through the primer (2); under the action of the current, heat is generated within a certain period of time to ignite the ignition charge column (3), thereby completing the ignition work function. The present invention improves the production efficiency of the electric ignition device, reduces production costs, and improves product reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of electric ignition devices, and in particular to a non-lethal electric ignition device for bullets. Background Art

[0002] The existing bullet electric ignition device uses a nickel-chromium alloy wire assembly to ignite when current is passed through it. The nickel-chromium alloy wire assembly consists of a lower electrode, an insulating paper pad, an upper electrode and a nickel-chromium alloy wire. Figure 4 As shown, the upper electrode 22 and the lower electrode 24 are isolated and overlapped by an insulating paper pad 23, and are connected and conducted by a nickel-chromium alloy wire 21. In the prior art, the assembly process of the nickel-chromium alloy wire ignition component is complicated, with low production efficiency, long production cycle and low product consistency. The insulating paper pad is sprayed and stamped and then bonded and cured together with the upper electrode and the lower electrode. The production process has relatively high requirements for spraying uniformity and curing temperature. In addition, the nickel-chromium alloy wire is fixed by manual welding, and the resistance needs to be measured after cleaning. In the production of the nickel-chromium alloy wire ignition component, the length of the alloy wire determines the ignition resistance, so the length of the alloy wire needs to be manually and accurately controlled, which places high demands on the operator. Manual welding can also easily cause eye fatigue and shoulder and neck discomfort to the operator, increasing labor intensity.

[0003] In adjacent technical fields, patent CN201511013218.1, for example, discloses an ignition method, structure, and preparation method for an electric detonator. A metal film in contact with the explosive is provided on the surface of the detonator's explosive, serving as the detonator's bridge. Current pulses from an energy storage system flow through the metal film bridge, heating it and vaporizing it until it breaks down, forming a plasma. The plasma particles penetrate into the adjacent agent through micro-convection motion, condense on the agent particles, transfer energy to the particles, and induce a chemical reaction, causing it to ignite. This patent uses a metal film as a bridge, which changes the traditional process of electric detonators and compensates for the shortcomings of traditional bridge manufacturing technology, such as cold solder joints and welding spatter. It not only makes pyrotechnics miniaturized and energy-efficient, but also highly safe and reliable, but also provides a new technical approach for the development of pyrotechnics and is progressive. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide an electric ignition device with a simple manufacturing process, high production efficiency, and a short production cycle, thereby ensuring product consistency and reliability and solving the technical problem of poor stability of electric ignition devices.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A non-lethal bullet electric ignition device comprises a cover plate, a primer, an ignition charge, a compressed copper ring, a nickel-chromium alloy film ignition component, an insulating injection-molded sleeve and a core electrode, wherein:

[0007] The primer body is a hollow cylindrical structure;

[0008] The core electrode is arranged in the primer body;

[0009] An insulating injection-molded sleeve is provided outside the core electrode, and the core electrode is fixed to the bottom of the primer body through the insulating injection-molded sleeve;

[0010] The nickel-chromium alloy film ignition component is in a disc structure;

[0011] The nickel-chromium alloy film ignition component is arranged in the primer body and is located above the core electrode;

[0012] A compression copper ring with interference fit is provided between the outer wall of the nickel-chromium alloy membrane ignition component and the inner wall of the primer body;

[0013] The nickel-chromium alloy film ignition component is fixedly connected to the primer body through the extrusion deformation of the compressed copper ring to form a single-pole circuit;

[0014] The nickel-chromium alloy film ignition component and the core electrode are in contact with each other to form another polar circuit;

[0015] The ignition charge column is arranged in the primer body and is located above the nickel-chromium alloy membrane ignition component;

[0016] The cover plate is installed and fixed on the top of the pyrotechnic powder column.

[0017] Optionally or preferably, the nickel-chromium alloy film ignition component includes a PCB circuit board and a nickel-chromium alloy film heating element;

[0018] The nickel-chromium alloy film heating element is connected to the PCB circuit board by reflow soldering;

[0019] The number of the nickel-chromium alloy film heating element on the nickel-chromium alloy film ignition component is at least one.

[0020] Optionally or preferably, the nickel-chromium alloy film heating element includes a plastic substrate and a nickel-chromium alloy film, and the nickel-chromium alloy film is sputtered on the plastic substrate.

[0021] Optionally or preferably, the nickel-chromium alloy film ignition assembly includes a nickel-chromium alloy film heating element;

[0022] The PCB circuit board is provided with a positive electrode copper clad layer A and a negative electrode copper clad layer A on the upper side, and a negative electrode copper clad layer on the lower side;

[0023] The negative electrode copper clad layer A is electrically connected to the negative electrode copper clad layer through the circuit copper clad hole A;

[0024] The negative electrode copper cladding layer is electrically connected to the core electrode; the positive electrode copper cladding layer A is electrically connected to the primer.

[0025] Optionally or preferably, the nickel-chromium alloy film heating element comprises a plastic substrate A and a nickel-chromium alloy film A, and the nickel-chromium alloy film A is sputtered on the plastic substrate A;

[0026] The nickel-chromium alloy film A and the positive electrode copper cladding layer A are welded together.

[0027] Optionally or preferably, the nickel-chromium alloy film ignition assembly includes two nickel-chromium alloy film heating elements;

[0028] The PCB circuit board is provided with a positive electrode copper clad layer A, a positive electrode copper clad layer B, a negative electrode copper clad layer A and a negative electrode copper clad layer B on the upper side, and a negative electrode copper clad layer on the lower side;

[0029] The negative electrode copper clad layer and the negative electrode copper clad layer A are electrically connected through the circuit copper clad hole A;

[0030] The negative electrode copper clad layer and the negative electrode copper clad layer B are connected via a circuit copper clad hole B;

[0031] The positive electrode copper clad layer A is electrically connected to the primer body;

[0032] The positive electrode copper coating B is electrically connected to the primer body;

[0033] The negative electrode copper cladding layer is electrically connected to the core electrode.

[0034] Optionally or preferably, the nickel-chromium alloy film heating element comprises a plastic substrate A, a plastic substrate B, a nickel-chromium alloy film A and a nickel-chromium alloy film B;

[0035] The nickel-chromium alloy film A is welded to the positive electrode copper clad layer A, and the nickel-chromium alloy film B is welded to the positive electrode copper clad layer B.

[0036] The beneficial effects of the present invention include:

[0037] (1) The present invention receives a reliable ignition current, causing the nickel-chromium alloy film heating element to heat up and ignite the ignition charge, so that the device completes the expected ignition work function; by receiving a safe current, stray current, human body static electricity, etc., the nickel-chromium alloy film is heated, resulting in the ignition charge being unable to ignite, thereby ensuring the safety of the device's service processing;

[0038] (2) The nickel-chromium alloy film ignition component of the present invention adopts a redundant design, integrating one or more nickel-chromium alloy film heating elements to improve the ignition reliability of the product;

[0039] (3) The nickel-chromium alloy film heating element and the PCB circuit board are preferably connected by reflow soldering, which facilitates automated production and improves product production efficiency;

[0040] (4) The present invention has the characteristics of easy installation, high degree of production automation, low price, good consistency, high reliability and safety;

[0041] (5) The application of the nickel-chromium alloy membrane ignition component of the present invention can greatly improve the present invention, shorten the production cycle, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0043] Figure 1 It is a structural schematic diagram (cross-sectional view) of the present invention;

[0044] Figure 2 This is a schematic structural diagram (front view) of the nickel-chromium alloy membrane ignition assembly of the present invention;

[0045] Figure 3 Schematic diagram of the structure of the nickel-chromium alloy membrane ignition component of the present invention (top view);

[0046] Figure 4 It is a side view of an existing nickel-chromium alloy wire ignition assembly;

[0047] The accompanying drawings are denoted as follows:

[0048] 1-cover, 2-primer, 3-ignition charge, 4-compressed copper ring, 5-nickel-chromium alloy film ignition assembly, 6-insulating injection-molded sleeve, 7-core electrode, 8-nickel-chromium alloy film heating element, 9-PCB circuit board, 10-negative copper clad layer, 11-plastic substrate A, 12-nickel-chromium alloy film A, 13-positive copper clad layer A, 14-positive copper clad layer B, 15-nickel-chromium alloy film B, 16-negative copper clad layer A, 17-circuit copper clad hole A, 18-circuit copper clad hole B, 19-negative copper clad layer B, 20-plastic substrate B, 21-nickel-chromium alloy wire, 22-upper electrode, 23-insulating paper pad, 24-lower electrode. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] Example 1:

[0052] like Figures 1-4 As shown:

[0053] This embodiment provides a non-lethal electric ignition device for a bullet, comprising a cover plate 1, a primer 2, an ignition charge 3, a compressed copper ring 4, a nickel-chromium alloy film ignition assembly 5, an insulating injection-molded sleeve 6, and a core electrode 7, wherein:

[0054] The primer body 2 is a hollow cylindrical structure;

[0055] The core electrode 7 is arranged in the primer body 2; an insulating injection molded sleeve 6 is provided outside the core electrode 7, and the core electrode 7 is fixed to the bottom of the primer body 2 through the insulating injection molded sleeve 6;

[0056] The nickel-chromium alloy film ignition component 5 is a disc structure; the nickel-chromium alloy film ignition component 5 is arranged in the primer body 2 and is located above the core electrode 7; a compression copper ring 4 with an interference fit is provided between the outer wall of the nickel-chromium alloy film ignition component 5 and the inner wall of the primer body 2;

[0057] The nickel-chromium alloy film ignition component 5 is fixedly connected to the primer body 2 through the extrusion deformation of the compressed copper ring 4 to form a single-pole circuit;

[0058] The nickel-chromium alloy film ignition component 5 and the core electrode 7 are in contact with each other to form another polar circuit; the ignition charge column 3 is arranged in the primer body 2 and is located above the nickel-chromium alloy film ignition component 5;

[0059] The cover plate 1 is mounted and fixed on the top of the pyrotechnic charge column 3 .

[0060] In this embodiment, the nickel-chromium alloy film ignition component 5 includes a PCB circuit board 9 and a nickel-chromium alloy film heating element 8; the nickel-chromium alloy film heating element 8 is connected to the PCB circuit board 9 by reflow soldering, which is easy to automate and improve the production efficiency of the product.

[0061] In this embodiment, the nickel-chromium alloy film ignition component 5 includes a nickel-chromium alloy film heating element 8; the PCB circuit board 9 is provided with a positive copper clad layer A 13 and a negative copper clad layer A16 on the top, and a negative copper clad layer 10 on the bottom; the negative copper clad layer A 16 is electrically connected to the negative copper clad layer 10 through the circuit copper clad hole A17; the negative copper clad layer 10 is electrically connected to the core electrode 7; the positive copper clad layer A13 is electrically connected to the bottom fire body 2.

[0062] In this embodiment, the nickel-chromium alloy film heating element 8 includes a plastic substrate A11 and a nickel-chromium alloy film A12. The nickel-chromium alloy film A12 is sputtered on the plastic substrate A11. The nickel-chromium alloy film A12 is welded to the positive electrode copper layer A13.

[0063] In this embodiment, the ignition charge column 3 is filled into the upper charge cavity of the primer body 2 by press-fitting; the ignition current is input through the core electrode 7, passes through the nickel-chromium alloy film ignition component 5, and finally flows out through the primer body 2; under the action of the current, the nickel-chromium alloy film heating element 8 generates heat within a certain period of time to ignite the ignition charge column 3, completing the ignition work function.

[0064] This embodiment has the following advantages:

[0065] (1) In this embodiment, by receiving a reliable ignition current, the nickel-chromium alloy film heating element 8 heats up and ignites the pyrotechnic charge 3, and the device completes the expected ignition work function; by receiving a safe current, stray current, human body static electricity, etc., the nickel-chromium alloy film A12 heats up, causing the pyrotechnic charge 3 to fail to ignite, thereby ensuring the safety of the device's service processing;

[0066] (2) In this embodiment, the nickel-chromium alloy film heating element 8 and the PCB circuit board 9 are preferably connected by reflow soldering, which facilitates automated production and improves product production efficiency;

[0067] (3) This embodiment has the characteristics of easy installation, high degree of production automation, low price, good consistency, high reliability and safety;

[0068] (4) The application of the nickel-chromium alloy membrane ignition component of this embodiment can greatly improve the present invention by shortening the production cycle and reducing production costs.

[0069] Example 2:

[0070] This embodiment provides a non-lethal electric ignition device for a bullet, comprising a cover plate 1, a primer 2, an ignition charge 3, a compressed copper ring 4, a nickel-chromium alloy film ignition assembly 5, an insulating injection-molded sleeve 6, and a core electrode 7, wherein:

[0071] The primer body 2 is a hollow cylindrical structure;

[0072] The core electrode 7 is arranged in the primer body 2; an insulating injection molded sleeve 6 is provided outside the core electrode 7, and the core electrode 7 is fixed to the bottom of the primer body 2 through the insulating injection molded sleeve 6;

[0073] The nickel-chromium alloy film ignition component 5 is a disc structure; the nickel-chromium alloy film ignition component 5 is arranged in the primer body 2 and is located above the core electrode 7; a compression copper ring 4 with an interference fit is provided between the outer wall of the nickel-chromium alloy film ignition component 5 and the inner wall of the primer body 2;

[0074] The nickel-chromium alloy film ignition component 5 is fixedly connected to the primer body 2 through the extrusion deformation of the compressed copper ring 4 to form a single-pole circuit;

[0075] The nickel-chromium alloy film ignition component 5 and the core electrode 7 are in contact with each other to form another polar circuit; the ignition charge column 3 is arranged in the primer body 2 and is located above the nickel-chromium alloy film ignition component 5;

[0076] The cover plate 1 is mounted and fixed on the top of the pyrotechnic charge column 3 .

[0077] In this embodiment, the nickel-chromium alloy film ignition component 5 includes a PCB circuit board 9 and a nickel-chromium alloy film heating element 8; the nickel-chromium alloy film heating element 8 is connected to the PCB circuit board 9 by reflow soldering, which is easy to automate and improve the production efficiency of the product.

[0078] In this embodiment, the nickel-chromium alloy film ignition component 5 includes two nickel-chromium alloy film heating elements 8; the PCB circuit board 9 is provided with a positive copper clad layer A13, a positive copper clad layer B14, a negative copper clad layer A16 and a negative copper clad layer B19 on the upper side, and a negative copper clad layer 10 on the lower side; the negative copper clad layer 10 and the negative copper clad layer A16 are electrically connected through a circuit copper clad hole A17; the negative copper clad layer 10 and the negative copper clad layer B19 are connected through a circuit copper clad hole B18; the positive copper clad layer A13 is electrically connected to the primer body 2; the positive copper clad layer B14 is electrically connected to the primer body 2; the negative copper clad layer 10 is electrically connected to the core electrode 7, and the ignition reliability is higher.

[0079] In this embodiment, the nickel-chromium alloy film heating element 8 includes a plastic substrate A11, a plastic substrate B20, a nickel-chromium alloy film A12 and a nickel-chromium alloy film B15; the nickel-chromium alloy film A12 is welded to the positive electrode copper cladding layer A13, and the nickel-chromium alloy film B15 is welded to the positive electrode copper cladding layer B14.

[0080] In this embodiment, the ignition charge column 3 is filled into the upper charge cavity of the primer body 2 by press-fitting; the ignition current is input through the core electrode 7, passes through the nickel-chromium alloy film ignition component 5, and finally flows out through the primer body 2; under the action of the current, the nickel-chromium alloy film heating element 8 generates heat within a certain period of time to ignite the ignition charge column 3, completing the ignition work function.

[0081] In this embodiment, the cover plate 1 is press-fitted onto the primer body 2 through a tooling seal, and a proper amount of sealing paint is applied to the seal to ensure the airtightness and long-term storage performance of the ignition device.

[0082] This embodiment has the following advantages:

[0083] (1) In this embodiment, by receiving a reliable ignition current, the nickel-chromium alloy film heating element 8 heats up and ignites the pyrotechnic charge 3, and the device completes the expected ignition work function; by receiving a safe current, stray current, human body static electricity, etc., the nickel-chromium alloy film A12 heats up, causing the pyrotechnic charge 3 to fail to ignite, thereby ensuring the safety of the device's service processing;

[0084] (2) The nickel-chromium alloy film ignition component 5 in this embodiment adopts a redundant design, integrating the nickel-chromium alloy film A12 and the nickel-chromium alloy film B19, thereby improving the product ignition reliability;

[0085] (3) In this embodiment, the nickel-chromium alloy film heating element 8 and the PCB circuit board 9 are preferably connected by reflow soldering, which facilitates automated production and improves product production efficiency;

[0086] (4) This embodiment has the characteristics of easy installation, high degree of production automation, low price, good consistency, high reliability and safety;

[0087] (5) The application of the nickel-chromium alloy membrane ignition component of this embodiment can greatly improve the present invention by shortening the production cycle and reducing production costs.

[0088] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. A non-lethal electric ignition device, characterized by: It comprises a cover plate (1), a primer body (2), an ignition charge column (3), a compressed copper ring (4), a nickel-chromium alloy film ignition component (5), an insulating injection-molded sleeve (6) and a core electrode (7), wherein: The primer body (2) is a hollow cylindrical structure; The core electrode (7) is arranged in the primer body (2); an insulating injection-molded sleeve (6) is provided outside the core electrode (7), and the core electrode (7) is fixed to the bottom of the primer body (2) through the insulating injection-molded sleeve (6); The nickel-chromium alloy film ignition component (5) is in a disc structure; the nickel-chromium alloy film ignition component (5) is arranged in the primer body (2) and is located above the core electrode (7); a compression copper ring (4) with an interference fit is provided between the outer wall of the nickel-chromium alloy film ignition component (5) and the inner wall of the primer body (2); The nickel-chromium alloy film ignition component (5) is fixedly connected to the primer body (2) through the extrusion deformation of the compressed copper ring (4), forming a single-pole circuit; The nickel-chromium alloy film ignition component (5) and the core electrode (7) are in contact with each other to form another polar circuit; the ignition charge column (3) is arranged in the primer body (2) and is located above the nickel-chromium alloy film ignition component (5); The cover plate (1) is mounted and fixed on the top of the pyrotechnic powder column (3); The nickel-chromium alloy film ignition component (5) comprises a PCB circuit board (9) and a nickel-chromium alloy film heating element (8); the nickel-chromium alloy film heating element (8) is connected to the PCB circuit board (9) by reflow soldering; the nickel-chromium alloy film heating element (8) comprises a plastic substrate and a nickel-chromium alloy film, and the nickel-chromium alloy film is sputtered on the plastic substrate; The nickel-chromium alloy film ignition assembly (5) includes two nickel-chromium alloy film heating elements (8); the PCB circuit board (9) is provided with a positive copper clad layer A (13), a positive copper clad layer B (14), a negative copper clad layer A (16) and a negative copper clad layer B (19) on the upper side, and a negative copper clad layer (10) on the lower side; the negative copper clad layer (10) and the negative copper clad layer A (16) are electrically connected through a circuit copper clad hole A (17); the negative copper clad layer (10) and the negative copper clad layer B (19) are connected through a circuit copper clad hole B (18); the positive copper clad layer A (13) and the bottom ignition body (2) are electrically connected; the positive copper clad layer B (14) and the bottom ignition body (2) are electrically connected; and the negative copper clad layer (10) and the core electrode (7) are electrically connected.

2. The non-lethal electric ignition device for bullets according to claim 1, characterized in that: The nickel-chromium alloy film heating element (8) comprises a plastic substrate A (11), a plastic substrate B (20), a nickel-chromium alloy film A (12) and a nickel-chromium alloy film B (15); the nickel-chromium alloy film A (12) is welded to the positive electrode copper cladding layer A (13), and the nickel-chromium alloy film B (15) is welded to the positive electrode copper cladding layer B (14).

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