Explosion magnetic energy-gathered coupling charging structure
By using a double-layer pharmaceutical cover design with a conical conformal coil in the energy-concentrated charging structure, combined with a waveform regulator and a detonating column, the multi-form conversion of explosive chemical energy is achieved, and the single effect and space in traditional technology is solved. The problem of occupancy significantly increases the current strength and reduces manufacturing costs.
Patent Information
- Application Number
- CN202411296328.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2024-12-17
AI Technical Summary
The traditional energy-condensing charging structure can only form a single penetration effect, making it difficult to convert the chemical energy of the explosive into multiple physical forms such as electrical energy and kinetic energy at the same time. Moreover, the traditional solenoid explosion-magnetic compression generator takes up a large space, making it difficult to combine energy-condensing. The structure is designed in an integrated manner.
The double-layer pharmaceutical cover design with a conical conformal coil is adopted to realize the integration of the explosive structure and the energy-concentrating structure. The strong current is generated through the conical metal shell and the conformal conical coil, and the waveform regulator and Detonate the column to realize the multi-form conversion of explosive chemical energy.
Without increasing the size of the charge structure, the current intensity is significantly improved, large currents above kA level can be generated, and manufacturing costs are reduced, thereby realizing the miniaturization and integrated design of the charge structure.
Smart Images
Figure CN119146824A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of ammunition engineering, and in particular relates to an explosive magnetic energy-focusing coupled charge structure. Background Art
[0002] The traditional shaped charge structure is mainly composed of a liner, a shaped charge, a shell, etc. The liner is squeezed by the explosive detonation wave to form a high-speed metal jet, which can have a penetrating effect on armored steel plates, concrete and other materials of a certain thickness. Figure 1 shown.
[0003] With the development of modern ammunition engineering technology, the traditional shaped charge structure can only form a single penetration effect and is difficult to meet diversified needs. There is an urgent need for a charge structure that can simultaneously convert the chemical energy of explosives into multiple physical forms such as electrical energy and kinetic energy and produce multiple effects.
[0004] The explosive magnetic compression generator (MFCG) is a high-power current pulse generating device that converts the chemical energy of explosives into electromagnetic energy through the magnetic field freezing effect. Taking the commonly used solenoid explosive magnetic compression generator as an example, its specific working process is as follows: 1) Use the initial power supply to apply current to the loop formed by the stator coil and the armature to generate an initial magnetic field between the coil and the armature; 2) When the initial current in the coil reaches its peak value, the explosive in the armature is detonated from the starting end. At this time, the explosive drives the armature to expand and continuously move toward the end of the coil; 3) During the movement of the armature, its expanded position contacts the wire in the coil. The remaining coils, armatures and loads from the contact point to the end form a new loop. The inductance of the loop decreases with the movement of the armature. According to the law of conservation of magnetic flux, the loop current increases, thereby generating a current pulse. The typical solenoid explosive magnetic compression generator charging structure is as follows Figure 2 shown.
[0005] The explosive magnetic generator can convert the chemical energy of explosives into electrical energy. However, the traditional solenoid explosive magnetic generator realizes magnetic flux compression based on the armature expansion principle. The expansion process takes up a large space and it is difficult to integrate it with the energy-gathering structure without increasing the size of the charge structure.
[0006] At present, there is a Chinese patent application with publication number CN116499327A, which discloses a passive strong magnetic field coupled shaped charge device. The device involves a passive strong magnetic field coupled shaped charge explosive power exchange structure design, composite piezoelectric shell design, and charge structure design. The basic principle of the device is to convert the chemical energy of the explosive into electrical energy and metal jet kinetic energy at the same time through the piezoelectric ceramic shell and shaped charge structure.
[0007] Existing technologies can, to a certain extent, realize the conversion of explosive chemical energy into multiple physical forms such as electrical energy and kinetic energy. However, on the one hand, this technology uses piezoelectric ceramics to generate electrical energy. Due to the limitations of the mechanical-electrical conversion mechanism of piezoelectric ceramics themselves, the current that can be generated is small, and it is difficult to generate large currents above kA level. On the other hand, compared with the coil structure, the manufacturing cost of the piezoelectric ceramic shell is higher. Summary of the invention
[0008] In order to overcome the shortcomings of the prior art, the present invention provides a magnetic-explosive energy-gathering coupled charge structure, including a charge liner, a main charge column, a waveform regulator, a secondary charge column, a detonating charge column and a shell; by adopting a double-layer charge liner design containing a conical conformal coil, the integrated design of the magnetic-explosive structure and the energy-gathering structure is realized, and the chemical energy of the explosive can be simultaneously converted into electrical energy and metal jet kinetic energy without affecting the jet forming. The charge structure can greatly improve the current intensity that can be generated by the existing technical route, and can generate a large current of more than kA level. In addition, the overall size of the proposed charge structure is comparable to that of the traditional energy-gathering charge structure, and does not increase the additional charge volume, which provides a new idea for the miniaturization and integrated design of the magnetic-explosive energy-gathering coupled charge.
[0009] The technical solution adopted by the present invention to solve the technical problem is as follows:
[0010] An explosive magnetic energy-gathering coupled charge structure comprises a charge liner, a main charge column, a waveform regulator, an auxiliary charge column, a detonating charge column and a shell;
[0011] The drug liner is a double-layer design, the outer layer is a conical metal shell in contact with the drug column surface; the inner layer is a conformal conical coil for generating a strong current;
[0012] The main charge column is located on the left side of the charge liner and uses explosives whose bottom surface conforms to the outer surface of the conical metal shell;
[0013] The waveform regulator is located between the main charge column and the auxiliary charge column, and is used to adjust the detonation wave waveform to enhance the effect of the detonation wave on the charge liner;
[0014] The auxiliary charge column is located on the left side of the main charge column and on the right side of the detonating charge column, and is used to conduct the spherical detonation wave formed by the detonating charge to the waveform regulator;
[0015] The detonating charge column is located at the center of one end of the auxiliary charge column away from the charge liner and can be embedded in the auxiliary charge column;
[0016] The shell is located outside the charge liner, main charge column, auxiliary charge column and detonating charge column, and is a cylindrical metal shell; an opening is left at the top of the shell for detonating the detonating charge column, and the end of the shell is connected to the opening end of the charge liner.
[0017] Preferably, the conical metal shell is made of red copper; the surface of the conformal conical coil is coated with an insulating coating material and copper enameled wire is used.
[0018] Preferably, an insulating material is coated between the inner and outer layers of the liner to achieve electrical isolation; both ends of the conformal conical coil are electrically connected to an external initial power supply to generate an initial magnetic field; the thickness of the liner is 0.01 to 0.05 times the caliber of the charge structure, and the liner cone angle is 30° to 90°.
[0019] Preferably, the materials of the main explosive column and the auxiliary explosive column are RDX, octogenol, and mixed explosives containing RDX / octogenol.
[0020] Preferably, the material of the waveform regulator is polyurethane foam, polycarbonate, or nylon.
[0021] Preferably, the material of the explosive column is JH-11 or JH-14 explosive.
[0022] Preferably, the shell is used to protect the drug column and fix the drug liner, has a thickness between 1 and 5 mm, and is made of 2A12 aluminum alloy.
[0023] The beneficial effects of the present invention are as follows:
[0024] 1. The present invention proposes an explosive magnetic energy-gathering coupled charge structure, which adopts a double-layer charge liner design containing a conical conformal coil, realizes the integration of the explosive magnetic structure and the energy-gathering structure, and avoids the armature components required by the traditional explosive magnetic compressor.
[0025] 2. The charge structure can simultaneously convert the chemical energy of explosives into electrical energy and metal jet kinetic energy without affecting the jet formation.
[0026] 3. The proposed charge structure is comparable in overall size to the traditional shaped charge structure, without increasing the extra charge volume.
[0027] 4. This structure can generate large currents above kA level, which is higher than the existing technology and has lower manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a typical schematic diagram of the shaped charge structure;
[0029] Figure 2 This is a schematic diagram of the charge structure of a typical solenoid-type explosive magnetic compression generator;
[0030] Figure 3 It is a schematic diagram of the explosive magnetic energy-focusing coupled charge structure of the present invention;
[0031] Figure 4 It is a schematic cross-sectional view of the explosive magnetic energy-focusing coupled charge structure of the present invention.
[0032] Description of the drawings: charge liner 1, main charge column 2, waveform regulator 3, auxiliary charge column 4, detonating charge column 5, shell 6, insulating shell 7, armature 8, charge column 9, coil 10, conical metal shell 1-1, conformal conical coil 1-2. DETAILED DESCRIPTION
[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0034] In view of the problems existing in the prior art, the purpose of the present invention is to provide an explosive magnetic energy-gathering coupled charge structure, which realizes the integrated design of the explosive magnetic structure and the energy-gathering structure without increasing the size of the charge structure, can convert the chemical energy of the explosive into electrical energy and metal jet kinetic energy, and significantly improve the conversion current intensity, achieving large current output above kA level.
[0035] An explosive magnetic energy-gathering coupled charge structure comprises a charge liner 1, a main charge column 2, a waveform regulator 3, an auxiliary charge column 4, an initiating charge column 5 and a shell 6;
[0036] The charge liner 1 is a double-layer design, the outer layer is a conical metal shell 1-1 in contact with the charge column surface; the inner layer is a conformal conical coil 1-2 for generating a strong current;
[0037] The main charge column 2 is located on the left side of the charge liner 1, and uses explosives whose bottom surface is conformal to the outer surface of the conical metal shell 1-1;
[0038] The waveform regulator 3 is located between the main charge column 2 and the auxiliary charge column 4, and is used to adjust the detonation wave waveform to enhance the effect of the detonation wave on the charge liner;
[0039] The auxiliary charge column 4 is located on the left side of the main charge column 2 and on the right side of the detonating charge column 5, and is used to conduct the spherical detonation wave formed by the detonating charge to the waveform regulator;
[0040] The detonating charge column 5 is located at the center of one end of the auxiliary charge column 4 away from the charge liner 1, and can be embedded in the auxiliary charge column 4;
[0041] The shell 6 is located outside the charge liner 1, the main charge column 2, the auxiliary charge column 4 and the detonating charge column 5, and is a cylindrical metal shell; an opening is left at the top of the shell 6 for detonating the detonating charge column 5, and the end of the shell 6 is connected to the open end of the charge liner 1.
[0042] The conical metal shell 1-1 is made of red copper; the surface of the conformal conical coil 1-2 is coated with an insulating coating material and is made of copper enameled wire.
[0043] Insulating material is coated between the inner and outer layers of the charge liner to achieve electrical isolation; both ends of the conformal conical coil 1-2 are electrically connected to an external initial power supply to generate an initial magnetic field; the thickness of the charge liner is 0.01 to 0.05 times the diameter of the charge structure, and the cone angle of the charge liner is 30° to 90°.
[0044] The materials of the main explosive column 2 and the auxiliary explosive column 4 are RDX, octogenol, and mixed explosives containing RDX / octogenol.
[0045] The material of the wave regulator is polyurethane foam, polycarbonate, nylon.
[0046] The material of the explosive column 5 is JH-11 or JH-14 explosive.
[0047] The shell 6 is used to protect the drug column and fix the drug liner 1. The shell 6 has a thickness of 1 to 5 mm and is made of 2A12 aluminum alloy.
[0048] Example:
[0049] The explosive magnetic energy-gathering coupled charge structure of the present invention is as follows: Figure 3 and Figure 4 As shown: it is mainly composed of a charge liner 1, a main charge column 2, a waveform regulator 3, an auxiliary charge column 4, a detonating charge column 5, and a shell 6.
[0050] The structure of the medicine liner 1 is as follows Figure 4 As shown, 1-1 is a conical metal shell, and 1-2 is a conformal conical coil. A double-layer charge liner design containing a conformal conical coil is used to simultaneously generate metal jets and strong currents. The outer layer in contact with the surface of the charge column is a conical metal thin shell, which can be made of copper. The inner layer is a conical coil, which is used to generate strong currents. The surface of the coil is coated with an insulating coating material, which can be copper enameled wire. Insulating material is coated between the inner and outer layers of the charge liner to achieve good electrical isolation. The two ends of the inner conical coil are electrically connected to an external initial power supply to generate an initial magnetic field. If the diameter of the charge structure is A, the thickness of the charge liner is 0.01A~0.05A. The cone angle of the charge liner is generally 30°~90°.
[0051] The main charge column 2 is located on the left side of the charge liner, and uses explosives whose bottom surface conforms to the outer surface of the conical charge liner. The main charge column material can be selected from common explosive materials such as RDX, octogen, and mixed explosives containing RDX / octogen.
[0052] The waveform adjuster 3 is located between the main charge column 2 and the auxiliary charge column 4, and is used to adjust the detonation wave waveform to enhance the effect of the detonation wave on the charge liner. The waveform adjuster material can be selected from polyurethane foam, polycarbonate, nylon, etc.
[0053] The auxiliary charge column 4 is located on the left side of the main charge column 2 and on the right side of the initiating charge column 4, and is used to conduct the spherical detonation wave formed by the initiating charge to the waveform regulator. The material of the auxiliary charge column is the same as that of the main charge column.
[0054] The explosive column 5 is located at the center of the end of the auxiliary column away from the charge liner and can be embedded in the auxiliary column. The material can be selected from common explosives such as JH-11, JH-14, etc.
[0055] The shell 6 is located outside the charge liner 1, the main charge column 2, the auxiliary charge column 4 and the detonating charge column 5, and is a cylindrical metal shell. An opening is left at the top for detonating the detonating charge column, and the end is connected to the opening end of the charge liner. The shell is used to protect the charge column and fix the charge liner. Its thickness is between 1 and 5 mm, and the material can be selected from 2A12 aluminum alloy.
[0056] The working principle of the present invention is as follows: 1) First, the conical coil in the inner layer of the charge liner is charged through an external power supply to form an initial magnetic field. 2) An external detonation system, such as a fuze, a detonator, etc., is used to detonate the explosive column, and then the auxiliary explosive column is detonated to generate a spherical detonation wave. 3) After the spherical detonation wave passes through the waveform regulator, the main explosive column is detonated to form a quasi-planar detonation wave that propagates axially. 4) After the quasi-planar detonation wave reaches the charge liner, the detonation product begins to squeeze the charge liner from the tip to form a metal jet. 5) The conical coil in the inner layer of the charge liner is squeezed and deformed at the same time, and the insulating layer between the coils is squeezed and destroyed from the tip and a short circuit is generated, thereby compressing the magnetic field inside the coil and forming a strong current at both ends of the coil wire. After being guided by the conductors at both ends of the coil, the current is output to the load.
Claims
1. A magnetic field energy-gathering coupled charge structure, characterized in that: It includes a charge liner, a main charge column, a waveform regulator, an auxiliary charge column, a detonating charge column and a shell; The drug liner is a double-layer design, the outer layer is a conical metal shell in contact with the drug column surface; the inner layer is a conformal conical coil for generating a strong current; The main charge column is located on the left side of the charge liner and uses explosives whose bottom surface conforms to the outer surface of the conical metal shell; The waveform regulator is located between the main charge column and the auxiliary charge column, and is used to adjust the detonation wave waveform to enhance the effect of the detonation wave on the charge liner; The auxiliary charge column is located on the left side of the main charge column and on the right side of the detonating charge column, and is used to conduct the spherical detonation wave formed by the detonating charge to the waveform regulator; The detonating charge column is located at the center of one end of the auxiliary charge column away from the charge liner and can be embedded in the auxiliary charge column; The shell is located outside the charge liner, main charge column, auxiliary charge column and detonating charge column, and is a cylindrical metal shell; an opening is left at the top of the shell for detonating the detonating charge column, and the end of the shell is connected to the opening end of the charge liner.
2. The explosive magnetic energy-focusing coupled charge structure according to claim 1, characterized in that: The conical metal shell is made of red copper; the surface of the conformal conical coil is coated with an insulating coating material and uses a copper enameled wire.
3. The explosive magnetic energy-focusing coupled charge structure according to claim 1, characterized in that: The inner and outer layers of the liner are coated with insulating material to achieve electrical isolation; both ends of the conformal conical coil are electrically connected to an external initial power supply to generate an initial magnetic field; the thickness of the liner is 0.01 to 0.05 times the diameter of the charge structure, and the liner cone angle is 30° to 90°.
4. The explosive magnetic energy-focusing coupled charge structure according to claim 1, characterized in that: The materials of the main explosive column and the auxiliary explosive column are RDX, octogenol, and mixed explosive containing RDX / octogenol.
5. The explosive magnetic energy-focusing coupled charge structure according to claim 1, characterized in that: The material of the waveform regulator is polyurethane foam, polycarbonate, and nylon.
6. The explosive magnetic energy-focusing coupled charge structure according to claim 1, characterized in that: The material of the explosive column is JH-11 or JH-14 explosive.
7. The explosive magnetic energy-focusing coupled charge structure according to claim 1, characterized in that: The shell is used to protect the drug column and fix the drug liner. Its thickness is between 1 and 5 mm and its material is 2A12 aluminum alloy.