An electromagnetic bow and launching device

Abstract

The application relates to the technical field of electromagnetic bows, and particularly provides an electromagnetic bow and a launching device, which comprises a shell, a power supply module, a driving coil, an acceleration track and an arrow; the power supply module, the driving coil and the acceleration track are arranged in the shell; the power supply module is connected with the driving coil, and the driving coil is arranged on the acceleration track; wherein the arrow comprises arrow feathers, an arrow shaft and an arrowhead which are connected in sequence; the arrowhead is in the shape of a bullet and is made of metal material; the arrowhead is initially located at the first end of the driving coil; and the driving coil is wound around the projection of the arrow in the movement direction. The manufacturing process of each component is relatively simple, the launching performance is ensured, and the components can be mass-produced; the kinetic energy of the launched arrow is relatively large, the launching precision is relatively high, and the shooter has no high requirements; the electromagnetic force is adjustable and uniformly acts, the launching cost is relatively low, and the stability is relatively good.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic crossbow technology, and in particular to an electromagnetic crossbow and its launching device. Background Technology

[0002] As a launching device, the mechanical crossbow has specific applications in civilian, military, and scientific research fields, such as launching designated props, military activities in quiet environments, and reducing the harm caused by sampling during cetacean research activities.

[0003] However, to meet the needs of modern applications, modern mechanical crossbows generally consist of a crossbow arm, bow, trigger mechanism, pulley system, bowstring, and bolts, each with a precise and complex structure. To ensure performance, the manufacturing process of modern mechanical crossbows is quite complex, making mass production unsuitable. When high kinetic energy is required for the bolts, modern mechanical crossbows are often large and heavy, demanding good physical fitness from the shooter. When high accuracy is required, even with a high-performance modern mechanical crossbow, stability is significantly limited by the shooter's skill level.

[0004] In scenarios where excessive destructive power is not a concern, other launching devices, such as artillery, can fire projectiles with greater kinetic energy, and some special-purpose artillery can achieve higher firing efficiency and accuracy. However, these methods significantly increase firing costs and generate considerable noise. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problems of existing mechanical crossbows, which have complex manufacturing processes and are not suitable for mass production, and have high requirements for the shooters, while artillery firing has high costs and generates huge noise. The present invention provides an electromagnetic crossbow and firing device that can be mass-produced while ensuring performance, does not have high requirements for the shooters, has low firing costs, and has the characteristics of being lightless and soundless.

[0006] In a first aspect, to solve the above-mentioned technical problems, the present invention provides an electromagnetic crossbow, including a shell, a power supply module, a drive coil, an acceleration rail, and crossbow bolts;

[0007] The power supply module, the drive coil, and the acceleration track are all located inside the housing; the power supply module is connected to the drive coil, and the drive coil is located on the acceleration track.

[0008] The crossbow bolt includes fletching, shaft and arrowhead connected in sequence. The arrowhead is bullet-shaped and made of metal. The arrowhead is initially located at the head end of the drive coil. The drive coil is wound to fit the projection of the crossbow bolt in the direction of movement.

[0009] In one embodiment of the present invention, the drive coil has a head end, a tap end and a tail end in sequence along the movement direction of the crossbow bolt; the power supply module includes a positive output terminal, a negative output terminal and a switch;

[0010] The head end is connected to the positive output terminal via the switch, the tail end is connected to the negative output terminal, and the tap end is located in the middle of the drive coil; when the crossbow bolt moves to the tap end, the switch is turned off, and the power supply module stops supplying power to the drive coil.

[0011] In one embodiment of the present invention, the switch is an IGBT or a thyristor; the IGBT or the thyristor is controlled by a microcontroller.

[0012] In one embodiment of the present invention, the power supply module includes an RC parallel circuit and a capacitor; the RC parallel circuit is connected in parallel with the drive coil, and the capacitor is connected in series with the drive coil.

[0013] In one embodiment of the present invention, the driving coil is a copper core coil, and the driving coil is a single layer or multiple layers.

[0014] In one embodiment of the present invention, the arrowhead is made of ferromagnetic material, the shaft is made of carbon fiber material, and the fletching is made of plastic or rubber material.

[0015] In one embodiment of the present invention, the outer shell is divided into inner and outer layers; the outer layer of the outer shell is made of stainless steel, and the inner layer of the outer shell is made of ceramic.

[0016] In one embodiment of the present invention, a control system is further included; the control system is connected to the power supply module and the drive coil, and is used to control the current magnitude and the coil activation time.

[0017] In one embodiment of the invention, a cooling system is further included; the cooling system is connected to the drive coil and is used to absorb or convert the heat generated by the drive coil.

[0018] Secondly, in order to solve the above-mentioned technical problems, the present invention also provides a launching device, including the electromagnetic crossbow described above.

[0019] Compared with the prior art, the above-described technical solution of the present invention has the following advantages:

[0020] The electromagnetic crossbow and launching device provided by this invention have simple manufacturing processes for each component, allowing for mass production, while ensuring launching performance; the launched crossbow bolts have high kinetic energy and high launching accuracy, and do not require high skill from the shooter; the electromagnetic force is adjustable and acts evenly, resulting in low launching cost, good stability, and the ability to operate without light or sound. Attached Figure Description

[0021] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a structural module diagram of an electromagnetic crossbow in a preferred embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the crossbow bolt No. 50;

[0024] Figure 3 for Figure 1 A schematic diagram of the winding method of the drive coil 30;

[0025] Figure 4 This is a preferred embodiment of the driving coil winding method based on existing theories.

[0026] Figure 5 This is a schematic diagram illustrating the connection relationship between the drive coil and the power supply module in a preferred embodiment of the present invention.

[0027] Explanation of reference numerals in the instruction manual:

[0028] X-shaped crossbow bolt movement direction; 10-shaped outer casing; 20-shaped power supply module; 30-shaped drive coil; 40-shaped acceleration rail; 50-shaped crossbow bolts;

[0029] 501 Arrow fletching; 502 Arrow shaft; 503 Arrowhead;

[0030] 301 Drive coil start end; 302 Drive coil tap end; 303 Drive coil tail end; 201 Power supply module positive output end; 202 Power supply module negative output end; SW1 Switch; R1 Resistor; C1 Capacitor; CA Capacitor; V1 Current source. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly, encompassing both mechanical and electrical connections; direct connections and indirect connections via an intermediate medium; and the internal communication of two components or the interaction between two components, unless otherwise expressly defined. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0035] Modern mechanical crossbows generally consist of a crossbow arm, bow, trigger mechanism, pulley system, bowstring, and bolts, with a sophisticated and complex structure. To ensure performance, the manufacturing process of modern mechanical crossbows is quite complex, making mass production unsuitable. When high kinetic energy is required for the bolts, modern mechanical crossbows are often large and heavy, demanding good physical fitness from the shooter. When high accuracy is required, even with a high-performance modern mechanical crossbow, stability is significantly limited by the shooter's skill. In scenarios where excessive destructive power is not a concern, other firing devices such as artillery, while capable of firing projectiles with greater kinetic energy and possessing high firing efficiency and accuracy in certain special-purpose artillery, significantly increase firing costs and generate considerable noise.

[0036] Therefore, embodiments of this application provide an electromagnetic crossbow and a launching device.

[0037] Example 1

[0038] This embodiment provides an electromagnetic crossbow; please refer to [reference needed]. Figure 1 As shown, it includes a housing 10, a power supply module 20, a drive coil 30, an acceleration rail 40, and a crossbow bolt 50;

[0039] The power supply module 20, the drive coil 30, and the acceleration track 40 are all disposed inside the housing 10; the power supply module 20 is connected to the drive coil 30, and the drive coil 30 is disposed on the acceleration track 40;

[0040] The crossbow bolt 50 includes fletching 501, shaft 502, and arrowhead 503 connected in sequence. Please refer to... Figure 2 As shown, the arrow 503 is bullet-shaped and made of metal. The arrow 503 is initially located at the head end of the drive coil 30. The drive coil 30 is wound around the crossbow bolt 50 in the direction of movement X.

[0041] The electromagnetic crossbow provided in this embodiment has the following characteristics: (1) the manufacturing process of each component is not complicated and can be mass-produced under the premise of ensuring the firing performance; (2) the firing arrow has a large kinetic energy, high firing accuracy, and does not require high skill from the shooter; (3) the electromagnetic force is adjustable and acts evenly, has good stability, and has the characteristics of being lightless and soundless.

[0042] The electromagnetic crossbow provided in this embodiment will now be described in detail:

[0043] Specifically, taking the crossbow bolt 50 as an example of a three-feathered crossbow bolt, its fletching 501 consists of one primary fletching and two secondary fletchings, which are attached to the shaft 502 at an angle of 120°. The projection of the crossbow bolt 50 in the direction of movement X is shown in the figure. Figure 3 As shown; the drive coil 30 is wound around the projection of the arrow feather 501 and the arrowhead 503 in the direction of motion X.

[0044] Compared to Figure 4 The drive coil winding method shown in this embodiment is more effective than the drive coil winding method used in the electromagnetic crossbow. While ensuring that the crossbow bolt 50 passes smoothly, it can increase the force of the drive coil 30 on the crossbow bolt 50 and make the force more uniform, thereby improving the kinetic energy and firing accuracy of the crossbow bolt 50.

[0045] In this embodiment, please refer to Figure 5 As shown, the drive coil 30 has a head end 301, a tap end 302 and a tail end 303 in sequence along the movement direction X of the crossbow bolt 50; the power supply module 20 includes a positive output terminal 201, a negative output terminal 202 and a switch SW1;

[0046] The head end 301 is connected to the positive output end 201 via the switch SW1, the tail end 303 is connected to the negative output end 202, and the tap end 302 is located in the middle of the drive coil 30. When the crossbow bolt 50 moves to the tap end 302, the switch SW1 is turned off, and the power supply module 20 stops supplying power to the drive coil 30.

[0047] Specifically, when the crossbow bolt 50 moves to the tap end 302, if the drive coil 30 remains energized, the crossbow bolt 50 will be subjected to a reverse force when moving between the tap end 302 and the tail end 303, resulting in negative acceleration. The speed of the crossbow bolt 50 will be reduced. Although the crossbow bolt 50 can still be fired, its kinetic energy will be reduced, and its accuracy will also be affected.

[0048] Optionally, the switch SW1 is an IGBT or a thyristor; the IGBT or the thyristor is controlled by a microcontroller.

[0049] By editing the built-in program of the microcontroller, the closing time and opening time of the switch SW1 can be set according to the expected kinetic energy of the crossbow bolt 50.

[0050] In this embodiment, the power supply module 20 includes an RC parallel circuit and a capacitor; the RC parallel circuit is connected in parallel with the drive coil 30, and the capacitor is connected in series with the drive coil 30.

[0051] Alternatively, please refer to Figure 5 As shown, the RC parallel circuit includes a resistor R1 and a capacitor C1, which can protect the circuit; the capacitor CA is connected in series with the drive coil 30, which can recover the residual current in the circuit as the initial energy storage for the next power supply cycle, thereby improving the power supply efficiency.

[0052] Preferably, the driving coil 30 is a copper core coil; the copper core coil has good conductivity, low resistivity and good thermal conductivity, which helps to reduce heat loss generated by energizing.

[0053] Specifically, the driving coil 30 is a single layer or multiple layers.

[0054] Preferably, the arrowhead 503 of the crossbow bolt 50 is made of ferromagnetic material with high magnetic permeability and reversible magnetization, and has good environmental stability; the shaft 502 is made of carbon fiber material with low density, high strength, high stiffness, and good thermal conductivity; the fletching 501 is made of plastic or rubber material, has good waterproof performance, and can adapt to different movement speeds and flight characteristics of the crossbow bolt.

[0055] Preferably, the outer shell 10 is divided into inner and outer layers; the outer layer of the outer shell 10 is made of stainless steel, which has high strength, strong corrosion resistance, and high antimagnetic properties, and can reduce magnetic field interference; the inner layer of the outer shell 10 is made of ceramic material, which has high strength, high hardness, and good electrical and thermal insulation properties.

[0056] Preferably, the electromagnetic crossbow provided in this embodiment further includes a control system; the control system is connected to the power supply module and the drive coil, and is used to control the current magnitude and the coil activation time.

[0057] Optionally, the control system includes a control chip and an RS485 communication module.

[0058] Through the control system, the electromagnetic crossbow provided in this embodiment can accurately determine the magnitude of electromagnetic force and firing energy according to the nature and range of the target to be hit, and can achieve remote control firing in special scenarios.

[0059] Preferably, the electromagnetic crossbow provided in this embodiment further includes a cooling system; the cooling system is connected to the drive coil and is used to absorb or convert the heat generated by the drive coil.

[0060] Optionally, the cooling system includes a heat pipe radiator, which is suitable for scenarios where space is limited but efficient heat dissipation is required. It can reduce the internal space occupied by the electromagnetic crossbow while performing heat dissipation functions.

[0061] When it is necessary to fire crossbow bolts with high kinetic energy, the cooling system can reduce the heat generation of the drive coil, thereby further improving the stability of the electromagnetic crossbow provided in this embodiment.

[0062] Example 2

[0063] This embodiment provides a launching device, including the aforementioned electromagnetic crossbow.

[0064] For a description of the transmitting device provided in this embodiment, please refer to Embodiment 1. This embodiment will not be repeated here.

[0065] The launching device provided in this embodiment has the same beneficial effects as the electromagnetic crossbow described above.

[0066] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An electromagnetic crossbow, characterized in that, Includes the outer casing, power supply module, drive coil, acceleration rail, and crossbow bolts; The power supply module, the drive coil, and the acceleration track are all located inside the housing. The power supply module is connected to the drive coil, and the drive coil is disposed on the acceleration track; The crossbow bolt includes fletching, shaft, and arrowhead connected in sequence. The arrowhead is bullet-shaped and made of metal. The arrowhead is initially located at the head end of the drive coil. The drive coil is wound to fit the projection of the crossbow bolt in the direction of movement. The drive coil has a head end, a tap end, and a tail end in sequence along the direction of movement of the crossbow bolt; the power supply module includes a positive output terminal, a negative output terminal, and a switch; The head end is connected to the positive output terminal via the switch, the tail end is connected to the negative output terminal, and the tap end is located in the middle of the drive coil; when the crossbow bolt moves to the tap end, the switch is turned off, and the power supply module stops supplying power to the drive coil.

2. The electromagnetic crossbow according to claim 1, characterized in that, The switch is an IGBT or a thyristor; the IGBT or the thyristor is controlled by a microcontroller.

3. An electromagnetic crossbow according to claim 1, characterized in that, The power supply module includes an RC parallel circuit and a capacitor; the RC parallel circuit is connected in parallel with the drive coil, and the capacitor is connected in series with the drive coil.

4. An electromagnetic crossbow according to claim 1, characterized in that, The driving coil is a copper core coil, and the driving coil can be single-layered or multi-layered.

5. An electromagnetic crossbow according to claim 1, characterized in that, The arrowhead is made of ferromagnetic material, the shaft is made of carbon fiber material, and the fletching is made of plastic or rubber material.

6. An electromagnetic crossbow according to claim 1, characterized in that, The outer shell consists of two layers, an outer layer and an inner layer. The outer layer of the outer shell is made of stainless steel, and the inner layer of the outer shell is made of ceramic.

7. An electromagnetic crossbow according to claim 1, characterized in that, It also includes a control system; the control system is connected to the power supply module and the drive coil, and is used to control the current magnitude and the coil activation time.

8. An electromagnetic crossbow according to claim 1, characterized in that, It also includes a cooling system; the cooling system is connected to the drive coil and is used to absorb or convert the heat generated by the drive coil.

9. A launching device, characterized in that, Including an electromagnetic crossbow as described in any one of claims 1-8.

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