Electronic Time Fuse for Rain Enhancement Projectile

By designing a dual insurance mechanism in the rain-enhancing bomb fuse and using inertial recoil and centrifugal force control circuit triggering, the problem of the rain-enhancing bomb still being possible to continue to detonate after it lands, significantly improving safety.

CN114963900BActive Publication Date: 2025-06-17JILIN WANDA TECH CO LTD
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Patent Information

Application Number
CN202210689167.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-16
Publication Date
2025-06-17
Estimated Expiration
2042-06-16

AI Technical Summary

Technical Problem

The existing 37mm artificial hail-proof rain bomb fuse poses safety risks, especially after landing, which may continue to detonate, resulting in safety risks.

Method used

An electronic time fuse for rain-enhancing bombs was designed, and a dual-safe mechanism was adopted. The series circuit of the power-on switch assembly and the power-on switch assembly was connected, and the power-on switch assembly was used to trigger the power and ignition circuits respectively, ensuring that the detonation was only carried out when the rain-enhancing bombs rotated at high speed.

Benefits of technology

It effectively avoids the situation where the rain-increasing bomb continues to detonate after it lands, improves safety, and ensures that the rain-increasing bomb will not ignite and explode again after it fails to land.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present application relates to an electronic time fuse for a rain enhancement projectile, which includes a main body and an electronic delay firing mechanism. The main body has a cavity arranged along a first direction; the electronic delay firing mechanism is arranged in the cavity of the main body, and the electronic delay firing mechanism includes a power supply assembly, a circuit assembly, a power-on switch assembly, a power connection switch assembly and an ignition assembly. The power-on switch assembly, the power supply assembly and the circuit assembly form a series circuit, and the power connection switch assembly, the circuit assembly and the ignition assembly form a series circuit; the power-on switch assembly is arranged along the first direction so that the power-on switch assembly can electrically connect the power supply assembly and the circuit assembly by using the inertial recoil force; the power connection switch assembly is arranged along the radial direction of the cavity so that the power connection switch assembly can electrically connect the circuit assembly and the ignition assembly by using the centrifugal force. The electronic time fuse for the rain enhancement projectile triggers the ignition mechanism through double insurance, which can effectively avoid the situation that the ignition assembly continues to detonate after the rain enhancement projectile lands, and improves safety.
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Description

Technical Field

[0001] This application relates to the technical field of civil fuzes, and particularly to an electronic time fuze for rain enhancement projectiles. Background Art

[0002] Currently, the fuzes of the 37mm artificial hail suppression and rain enhancement projectile series on the domestic market all adopt the time-delay detonation method with a gunpowder disk timing structure, and the explosion sequence adopts the detonation output to initiate the rain enhancement projectile. The manufacturing process of the gunpowder disk timing structure is relatively complex, the production reproducibility is poor, the action reliability is low, and it is easy to have cross-fire, resulting in chamber explosion of the rain enhancement projectile, posing certain potential safety hazards.

[0003] To solve these key technical problems, domestic researchers have conducted a lot of relevant research. In the prior art, electronic time delay is also adopted, with high timing accuracy and good productivity. The magnetic recoil generator is used to generate electricity by the launch overload, charge the capacitor, and the charged capacitor is used as the power supply to supply power to the timing circuit and the initiation circuit. However, its timing firing mechanism has only one insurance, that is, the magnetic core of the generator shears the fuse sheet through the recoil force to connect the circuit components, and then the delay initiation circuit is connected according to the preset in the timing circuit components. The initiation circuit makes the non-primary explosive detonator fire. Once the fuze misfires and the rain enhancement projectile lands, the delay initiation circuit cannot be disconnected, and the initiation circuit will still make the non-primary explosive detonator fire, resulting in the initiation of the rain enhancement projectile, still posing certain potential safety hazards. Summary of the Invention

[0004] The purpose of this application is to provide an electronic time fuze for rain enhancement projectiles. The electronic time fuze for rain enhancement projectiles can effectively avoid the situation that the ignition component continues to initiate after the rain enhancement projectile lands by means of double insurance, improving safety.

[0005] For this reason, the embodiment of this application provides an electronic time fuze for rain enhancement projectiles, including: a main body having a cavity arranged along a first direction; and an electronic delay firing mechanism arranged in the cavity of the main body, and the electronic delay firing mechanism includes a power supply component, a circuit component, a power-on switch component, a power connection switch component, and an ignition component. The power-on switch component, the power supply component, and the circuit component form a series circuit, and the power connection switch component, the circuit component, and the ignition component form a series circuit; wherein, the power-on switch component is arranged along the first direction so that the power-on switch component can electrically connect the power supply component and the circuit component by using inertial recoil force; the power connection switch component is arranged along the radial direction of the cavity so that the power connection switch component can electrically connect the circuit component and the ignition component by using centrifugal force.

[0006] In a possible implementation, the circuit assembly includes a circuit box and a circuit component arranged in the circuit box, the circuit component has a first power connection port and a second power connection port; the power switch assembly includes: a first shell, having a first inner cavity arranged along the radial direction of the cavity and a first opening connected to the first inner cavity, the first opening being arranged on the outside of the first shell; a power connection pin, slidably arranged in the first inner cavity, and the power connection pin is electrically connected to the first shell; a first insulating plate, arranged at the first opening of the first shell; a power connection elastic member, one end of the power connection elastic member abuts against the first insulating plate, and the other end abuts against the power connection pin; and a power connection post, arranged on the first insulating plate, one end of the power connection post is electrically connected to the first power connection port, and the other end is used to electrically connect to the power connection pin; wherein one pole of the ignition assembly is electrically connected to the second power connection port of the circuit component, and the other pole is electrically connected to the first shell.

[0007] In a possible implementation, the circuit component has a first power-on port and a second power-on port; the power-on switch assembly includes: a second shell, having a second inner cavity arranged along the first direction and a second opening and a first pin hole connected to the inner cavity, the second opening being arranged at the bottom of the second inner cavity; an inertia column, slidably arranged in the second inner cavity, the inertia column being electrically connected to the second shell, and a mounting groove being arranged at the bottom of the inertia column, and a second pin hole aligned with the first pin hole being arranged at the top of the inertia column; a crown-shaped elastic member, arranged in the mounting groove of the inertia column; a shear pin, passing through the first pin hole and the second pin hole; and a plug-in conductive member, the plug-in conductive member being arranged at the second opening of the second shell, and one end of the plug-in conductive portion being electrically connected to the first power-on port of the circuit component, and the other end having a power-on pin for cooperating with the crown-shaped elastic member; wherein one of the positive and negative poles of the power supply assembly is electrically connected to the second shell, and the other is electrically connected to the second power-on port.

[0008] In a possible implementation, the plug-in conductive part also includes: a second insulating plate, disposed at the second opening of the second shell; and a transfer post, disposed on the second insulating plate, and one end of the transfer post is electrically connected to the upper power needle, and the other end is connected to the first power port of the circuit component; wherein the upper power needle is disposed on the second insulating plate.

[0009] In a possible implementation, the power-on switch assembly further includes a power-on elastic member, one end of which abuts against an inner top wall of the second inner cavity of the second shell, and the other end of which abuts against the inertia column.

[0010] In a possible implementation, the coronal elastic member is fixedly arranged in the installation groove of the inertial column. The middle part of the coronal elastic member is an arc surface structure protruding towards the central axis of the installation groove. The arc surface structures of multiple coronal elastic members enclose a through hole for clamping the upper power needle, and the inner diameter of the through hole is smaller than the outer diameter of the upper power needle.

[0011] In a possible implementation, the electronic time fuse of the rain enhancement bomb further includes a ball rotor safety and arming mechanism arranged in the cavity. The ball rotor safety and arming mechanism includes: a ball shell, which includes a ball seat and a ball cover, and a spherical cavity is formed between the ball seat and the ball cover; an isolation ball, which is rotatably arranged in the spherical cavity of the ball shell, and a wire hole penetrating through the isolation ball is arranged on the isolation ball; a detonator tube, which is arranged in the wire hole of the isolation ball; a flame detonator, which is arranged on the ball cover of the ball shell for detonating the detonator tube, and the flame detonator is arranged at the ignition end of the ignition assembly; a first limit and safety component, which is arranged on the ball seat of the ball shell for limiting the rotation of the isolation ball in the spherical cavity; and a second limit and safety component, which is arranged on the ball cover of the ball shell for limiting the rotation of the isolation ball in the spherical cavity.

[0012] In a possible implementation, an inertial hole communicating with the spherical cavity is arranged on the ball seat. The inertial hole is arranged along the first direction, and a safety pin hole communicating with the inertial hole is arranged on the outer peripheral side of the ball seat. The safety pin hole is arranged along the radial direction of the cavity; the first limit and safety component includes: an inertial pin, which is slidably arranged in the inertial hole along the first direction, and one end of the inertial pin extends into the spherical cavity for limiting the isolation ball; and a safety pin, which is arranged in the safety pin hole of the ball seat and penetrates through the inertial pin for limiting the inertial pin.

[0013] In a possible implementation, the inertial hole includes an upper through hole and a lower through hole communicating with the bottom of the upper through hole. The upper through hole and the lower through hole are eccentrically arranged, and the inner diameter of the lower through hole is larger than the inner diameter of the upper through hole.

[0014] In a possible implementation, the bottom of the inertial pin is a bevel structure, and the height of the inertial pin is smaller than the length of the lower through hole along the first direction.

[0015] In a possible implementation, a lateral through-hole communicating with the spherical cavity is provided on the outer peripheral side of the spherical cover, and the lateral through-hole is arranged along the radial direction of the cavity; the second limit and safety component includes: a retaining piece disposed at one end of the lateral through-hole away from the spherical cavity; a centrifugal pin slidably disposed in the lateral through-hole, and one end of the centrifugal pin away from the retaining piece extends into the spherical cavity for limiting the isolation ball; and a centrifugal spring disposed in the lateral through-hole, and two ends of the centrifugal spring respectively abut against the centrifugal pin and the retaining piece.

[0016] In a possible implementation, a third opening communicating with the cavity is provided at the bottom of the body, and the rain-enhancing bomb electronic time fuse further includes an initiating mechanism disposed at the third opening, the initiating mechanism is located below the spherical rotor safety and arming mechanism, and the initiating mechanism includes a first initiating cartridge case and an initiating charge disposed in the first initiating cartridge case, and a conical groove is formed by upward protrusion in the middle of the bottom end of the first initiating cartridge case.

[0017] In a possible implementation, the power supply component includes a power supply box, a lithium battery disposed in the power supply box, and a power supply pin electrically connected to the lithium battery, and the power supply pin is used for supplying power to the circuit component.

[0018] According to the rain-enhancing bomb electronic time fuse provided by the embodiment of the present application, during the launching process of the rain-enhancing bomb electronic time fuse, the power-on switch component makes the power supply component electrically connected to the circuit component through inertial recoil force, the power supply component supplies power to the circuit component, the rain-enhancing bomb rotates at a high speed, and the power connection switch component continuously electrically connects the circuit component and the ignition component under the action of centrifugal force, so that the circuit component can supply power to the ignition component at any time, causing the ignition component to fire, and triggering the ignition component through double insurance. When the rain-enhancing bomb fails and lands, since the rain-enhancing bomb no longer rotates at a high speed, the power connection switch component cannot continuously connect the circuit component and the ignition component, and cannot supply power to the ignition component, thereby preventing the ignition component from detonating, which can effectively avoid the situation that the ignition component continues to detonate after the rain-enhancing bomb lands, and improve safety. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. In addition, in the drawings, the same components are denoted by the same reference numerals, and the drawings are not drawn to actual scale.

[0020] Figure 1A front cross-sectional structural schematic diagram of an electronic time fuze for a rain-increasing bomb provided in an embodiment of the present application is shown;

[0021] Figure 2 A schematic diagram of a side cross-sectional structure of an electronic time fuze of a rain-increasing bomb provided in an embodiment of the present application is shown;

[0022] Figure 3 A schematic diagram showing the structure of a power switch assembly provided in an embodiment of the present application is shown;

[0023] Figure 4 A schematic diagram showing the structure of a power-on switch assembly provided in an embodiment of the present application is shown;

[0024] Figure 5 A schematic diagram showing the structure of a ball rotor safety and release mechanism provided in an embodiment of the present application;

[0025] Figure 6 Show Figure 1 Cross-sectional view along the AA direction.

[0026] Description of reference numerals:

[0027] Y, first direction;

[0028] 1. Ontology; 11. The first ontology; 12. The second ontology;

[0029] 2. Electronic delayed ignition mechanism; 21. Power supply assembly; 211. Power supply box; 212. Lithium battery; 213. Power supply pin; 214. Power supply board; 22. Circuit assembly; 221. Circuit box; 222. Circuit components; 23. Power-on switch assembly; 231. Second shell; 232. Inertia column; 233. Crown elastic member; 234. Shear pin; 235. Plug-in conductive member; 2351. Power-on pin; 2352. Second insulating plate; 2353. Adapter column; 236. Power-on elastic member; 24. Power-on switch assembly; 241. First shell; 242. Power-on pin; 243. First insulating plate; 244. Power-on elastic member; 245. Power-on column; 25. Ignition assembly;

[0030] 3. Ball rotor safety and release mechanism; 31. Ball shell; 311. Ball seat; 3111. Inertia hole; 312. Ball cover; 3121. Horizontal through hole; 32. Isolation ball; 321. Wire hole; 33. Detonating tube; 34. Flame detonator; 35. First position limit insurance assembly; 351. Inertia pin; 3511. Inclined structure; 352. Insurance pin; 36. Second position limit insurance assembly; 361. Blocking piece; 362. Centrifugal pin; 363. Centrifugal spring;

[0031] 4. detonation mechanism; 41. first detonation tube shell; 411. conical groove; 42. detonation charge; 43. second detonation tube;

[0032] 5. Press the paper gasket;

[0033] 6. Annular paper gasket;

[0034] 7. Buffer paper gasket. Specific embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0036] In the related art, a delay initiation circuit is provided in the circuit component, so that the initiation time of the explosive element in the fuse can be accurately controlled.

[0037] Figure 1 Shows a front cross-sectional structural schematic diagram of an artificial rainfall rocket electronic time fuse provided by an embodiment of this application; Figure 2 Shows a side cross-sectional structural schematic diagram of an artificial rainfall rocket electronic time fuse provided by an embodiment of this application; Figure 3 Shows a structural schematic diagram of a power connection switch component provided by an embodiment of this application; Figure 4 Shows a structural schematic diagram of a power-on switch component provided by an embodiment of this application; Figure 5 Shows a structural schematic diagram of a ball rotor safety and arming mechanism provided by an embodiment of this application; Figure 6 Shows Figure 1 A cross-sectional view in the A-A direction in

[0038] As Figures 1 to 6 shown, an embodiment of this application provides an artificial rainfall rocket electronic time fuse, including: a body 1 and an electronic delay firing mechanism 2, where:

[0039] The body 1 has a cavity provided along the first direction Y. Specifically, after the artificial rainfall rocket is launched, the first direction Y of the body 1 is consistent with the launch direction, and the inertia recoil force can be effectively utilized to trigger the power-on switch component.

[0040] The electronic delay firing mechanism 2 is disposed in the cavity of the body 1, and the electronic delay firing mechanism 2 includes a power supply component 21, a circuit component 22, a power-on switch component 23, a power connection switch component 24, and an ignition component 25. The power-on switch component 23, the power supply component 21, and the circuit component 22 form a series circuit, and the power connection switch component 24, the circuit component 22, and the ignition component 25 form a series circuit.

[0041] Among them, the power-on switch assembly 23 is arranged along the first direction Y, so that the power-on switch assembly 23 can electrically connect the power supply assembly 21 and the circuit assembly 22 by using the inertial recoil force; the power-connection switch assembly 24 is arranged along the radial direction of the cavity, so that the power-connection switch assembly 24 can electrically connect the circuit assembly 22 and the ignition assembly 25 by using the centrifugal force.

[0042] Specifically, the electronic time fuse is installed on the rain enhancement projectile. During the launch process of the rain enhancement projectile, a recoil force is generated, causing the power-on switch assembly 23 to be turned on. Thus, the power supply assembly 21 provides electrical energy for the circuit assembly 22. During the flight of the rain enhancement projectile, it rotates at a high speed, generating a large centrifugal force. Due to the centrifugal force, the power-connection switch assembly 24 is turned on, so that the circuit assembly 22 is continuously electrically connected to the ignition assembly 25, providing electrical energy to make the ignition assembly 25 fire.

[0043] In this application, during the launch process, the power-on switch assembly 23 electrically connects the power supply assembly 21 and the circuit assembly 22 through the inertial recoil force. The power supply assembly 21 supplies power to the circuit assembly 22. The rain enhancement projectile rotates at a high speed. Under the action of the centrifugal force, the power-connection switch assembly 24 continuously electrically connects the circuit assembly 22 and the ignition assembly 25, enabling the circuit assembly 22 to supply power to the ignition assembly 25 at any time and making the ignition assembly 25 fire. The ignition assembly 25 is triggered through double insurance. When the rain enhancement fails to fire and lands, since the rain enhancement projectile no longer rotates at a high speed, the power-connection switch assembly 24 cannot connect the circuit assembly 22 and the ignition assembly 25, and will not supply power to the ignition assembly, thus preventing the ignition assembly 25 from detonating. This can effectively avoid the situation where the ignition assembly continues to detonate after the rain enhancement projectile lands, improving safety. Specifically, the power-connection switch assembly is continuously connected to the ignition assembly under the action of the centrifugal force. Through the circuit components for timing, after a delay of the timing period, the circuit components ignite the ignition assembly. In this application, the circuit components ignite the ignition assembly three times, with an interval of 0.5 s between two adjacent ignitions to ensure reliable triggering of the ignition assembly.

[0044] In some embodiments, the circuit assembly 22 includes a circuit box 221 and circuit components 222 disposed in the circuit box 221. The circuit components 222 have a first power-connection port and a second power-connection port. Specifically, the first power-connection port and the second power-connection port are output ports of the circuit components 222. The circuit components 222 form a series circuit with the power-connection switch assembly 24 and the ignition assembly 25 through the first power-connection port and the second power-connection port, and the power-connection switch assembly 24 controls the on and off of the circuit.

[0045] As Figure 3 shown, the power-connection switch assembly 24 includes: a first housing 241, a power-connection pin 242, a first insulating plate 243, a power-connection elastic member 244, and a power-connection post 245, where:

[0046] The first housing 241 has a first inner cavity disposed radially along the cavity and a first opening communicating with the first inner cavity, and the first opening is disposed on the outer side of the first housing 241. Specifically, the first inner cavity of the first housing 241 is disposed radially along the cavity, that is, perpendicular to the launch direction of the rain enhancement projectile, which can effectively utilize the rotation of the rain enhancement projectile to generate centrifugal force, thereby triggering the power connection switch assembly 24 to connect the circuit assembly 22 and the ignition assembly 25.

[0047] The power connection pin 242 is slidably disposed in the first inner cavity, and the power connection pin 242 is electrically connected to the first housing 241. Specifically, during the sliding process of the power connection pin 242, it can always remain in contact with the inner wall of the first housing 241, thereby ensuring that the power connection pin 242 is always electrically connected to the first housing 241 and ensuring the reliability of power connection.

[0048] The first insulating plate 243 is disposed at the first opening of the first housing 241, and the power connection post 245 is isolated from the first housing 241 through the first insulating plate 243. Only when the power connection pin 242 contacts the power connection post 245, the power connection post 245 will be electrically connected to the first housing 241.

[0049] One end of the power connection elastic member 244 abuts against the first insulating plate 243, and the other end abuts against the power connection pin 242.

[0050] The power connection post 245 is disposed on the first insulating plate 243, and one end of the power connection post 245 is electrically connected to the first power connection port, and the other end is used for electrically connecting the power connection pin 242.

[0051] Wherein, one pole of the ignition assembly 25 is electrically connected to the second power connection port of the circuit component 222, and the other pole is electrically connected to the second housing 231.

[0052] In this application, before launching, under the elastic support of the power connection elastic member 244, the power connection pin 242 is located at one end of the first inner cavity adjacent to the cavity central axis. At this time, the power connection pin 242 and the power connection post 245 are in a separated state, and the circuit assembly 22 and the ignition assembly 25 are disconnected. When the rain enhancement projectile rotates at high speed, the power connection pin 242 slides along the first inner cavity under the action of centrifugal force and compresses the power connection elastic member 244, so that the power connection pin 242 contacts the power connection post 245, and the power connection switch assembly 24 connects the circuit assembly 22 and the ignition assembly 25 to carry out ignition.

[0053] In some embodiments, the circuit component 222 has a first power-on port and a second power-on port. Specifically, one of the first power-on port and the second power-on port on the circuit component 222 is a positive terminal port, and the other is a negative terminal port. The circuit component 222 forms a series circuit with the power-on switch assembly 23 and the power supply assembly 21 through the first power-on port and the second power-on port, and the power-on and off of the circuit are controlled by the power-on switch assembly 23.

[0054] As Figure 4 shown, the power-on switch assembly 23 includes: a second housing 231, an inertia column 232, a coronal elastic member 233, a shear pin 234, and a plug-in conductive member 235, where:

[0055] The second housing 231 has a second inner cavity disposed along the first direction Y, a second opening communicating with the inner cavity, and a first pin hole. The second opening is disposed at the bottom of the second inner cavity. Specifically, the second inner cavity is disposed along the first direction Y, such that the inertial recoil force generated after the rain enhancement projectile is launched is along the direction of the first inner cavity, facilitating the inertia column 232 to cut off the shear pin 234 and slide along the first inner cavity.

[0056] The inertia column 232 is slidably disposed in the second inner cavity. The inertia column 232 is electrically connected to the second housing 231. An installation groove is provided at the bottom of the inertia column 232, and a second pin hole aligned with the first pin hole is provided at the top of the inertia column 232. When the inertia column 232 slides in the second inner cavity, it always abuts against the inner wall of the second housing 231, ensuring that the inertia column 232 is always electrically connected to the second housing 231 and ensuring the reliability of power-on.

[0057] The coronal elastic member 233 is disposed in the installation groove of the inertia column 232.

[0058] The shear pin 234 penetrates through the first pin hole and the second pin hole.

[0059] The plug-in conductive member 235 is disposed at the second opening of the second housing 231. One end of the plug-in conductive member is electrically connected to the first power-on port of the circuit component 222, and the other end has a power-on pin 2351 for cooperating with the coronal elastic member 233.

[0060] Wherein, one of the positive electrode and the negative electrode of the power supply assembly 21 is electrically connected to the second housing 231, and the other is electrically connected to the second power-on port.

[0061] In this application, before the rain enhancement projectile is launched, the inertia column 232 is limited by the shear pin 234. At this time, the inertia column 232 and the plug-in conductive member 235 are in a separated state. When the rain enhancement projectile is launched, under the action of the inertial recoil force, the inertia column 232 moves downward relative to the main body 1, thereby cutting off the connection. The inertia column 232 slides along the second inner cavity, enabling the power-on pin 2351 of the plug-in conductive member 235 to cooperate with the coronal elastic member 233, and then turning on the circuit. The power supply assembly 21 supplies power to the circuit component 222.

[0062] As Figure 1 shown, specifically, the power-on switch assembly 23 is disposed in the inner cavity side hole of the circuit box 221, close to the circuit component 222, and there is no need to provide external electrical connection lines, ensuring the reliability of power connection.

[0063] like Figure 4 As shown, further, the plug-in conductive member 235 further includes: a second insulating plate 2352 and a transfer column 2353, wherein:

[0064] The second insulating plate 2352 is disposed at the second opening of the second shell 231 .

[0065] The adapter post 2353 is disposed on the second insulating plate 2352 , and one end of the adapter post 2353 is electrically connected to the upper power pin 2351 , and the other end of the adapter post 2353 is connected to the first power-on port of the circuit component 222 .

[0066] The upper electrical needle 2351 is disposed on the second insulating plate 2352 .

[0067] In the present application, the upper electric needle 2351 and the adapter column 2353 are both installed on the second insulating plate 2352, so that the plug-in conductive part 235 is isolated from the second shell 231. When the upper electric needle 2351 is plugged into the crown elastic part 233, the second shell 231 is connected to the plug-in conductive part 235, so that the power supply component 21 is connected to the circuit component 222.

[0068] Specifically, a copper wire is disposed on the surface of the second insulating plate 2352, and the upper electrical needle 2351 and the adapter post 2353 are both electrically connected to the copper wire, thereby realizing electrical connection between the upper electrical needle 2351 and the adapter post 2353 without the need for external connecting wires, thereby ensuring the reliability of the connection.

[0069] like Figure 4 As shown, further, the power-on switch assembly 23 also includes a power-on elastic member 236 , one end of the power-on elastic member 236 abuts against the inner top wall of the second inner cavity, and the other end abuts against the inertia column 232 .

[0070] Specifically, the power-on elastic member 236 is a spring, and the power-on elastic member 236 is arranged between the inner top wall of the second inner cavity and the inertia column 232, and is in a compressed state. When the shear pin 234 is cut off, the elastic force of the power-on elastic member 236 pushes the inertia column 232 to slide along the second inner cavity, so that the plug-in conductive member 235 and the crown elastic member 233 are plugged in and matched, and after the inertial recoil is lost in the later stage, under the action of the power-on elastic member 236, it can be ensured that the crown elastic member 233 and the plug-in conductive member 235 will not be separated.

[0071] In the present application, in order to facilitate the cooperation between the power-on elastic member 236 and the inertia column 232 , a supporting boss is provided on the outer side of the inertia column 232 , and the bottom of the power-on elastic member 236 abuts against the top of the supporting boss.

[0072] like Figure 4As shown, in some embodiments, the coronal elastic member 233 is fixedly arranged in the mounting groove of the inertia column. Specifically, one end of the coronal elastic member is point-riveted and fixed to the notch of the mounting groove, and the other end is connected to the mounting groove. The middle part of the coronal elastic member 233 is an arc-shaped structure protruding towards the central axis of the mounting groove. The arc-shaped structures of multiple coronal elastic members 233 enclose a through hole for clamping the power-on needle 2351, and the inner diameter of the through hole is smaller than the outer diameter of the power-on needle 2351.

[0073] In this application, the coronal elastic member 233 is point-riveted and fixed to the notch of the mounting groove to prevent the coronal elastic member 233 from being disengaged from the mounting groove of the inertia column 232 under the action of the recoil force, resulting in unreliable power connection.

[0074] Specifically, the coronal elastic member 233 is composed of multiple metal elastic pieces surrounding a circle. The metal elastic pieces are electrically connected to the inertia column 232. When the end of the power-on needle 2351 is inserted into the mounting groove and passes through the arc-shaped structure of the coronal elastic member 233, the power-on needle 2351 is inserted and connected to the coronal elastic member 233. The arc-shaped structure protruding in the middle of the metal elastic piece facilitates clamping the power-on needle 2351, and the bottom opening of the coronal elastic member 233 is larger than the diameter of the power-on needle 2351, facilitating the insertion of the end of the power-on needle 2351.

[0075] The coronal elastic member is a standard part, known as a crown spring in the market. When the arc-shaped structure protruding in the middle of the coronal elastic member is used for the fuze power-on switch, reliable connection is ensured, and the situation of the circuit being intermittently connected due to the disturbance of the ballistic environment is avoided.

[0076] As Figure 5 shown, in some embodiments, the electronic time fuze of the rain enhancement bomb further includes a ball rotor safety and arming mechanism 3 arranged in the cavity. The ball rotor safety and arming mechanism 3 includes: a ball shell 31, an isolation ball 32, a detonator tube 33, a flame detonator 34, a first limit insurance component 35 and a second limit insurance component 36, wherein:

[0077] The ball shell 31 includes a ball seat 311 and a ball cover 312, and a spherical cavity is formed between the ball seat 311 and the ball cover 312.

[0078] The isolation ball 32 is rotatably arranged in the spherical cavity of the ball shell 31, and a wire hole 321 penetrating the isolation ball 32 is arranged on the isolation ball 32. Specifically, before the rain enhancement bomb is launched, the wire hole 321 is in a horizontal state, that is, perpendicular to the first direction Y. The wire hole 321 includes two outer holes with larger apertures and a connecting hole located between the two outer holes. The two outer holes are communicated through the connecting hole, and the inner diameter of the connecting hole is smaller than the inner diameter of the outer hole. Detonator tubes 33 are respectively arranged in the two outer holes.

[0079] The detonator tube 33 is arranged in the wire hole 321 of the isolation ball 32.

[0080] The flame detonator 34 is arranged on the spherical cover 312 of the spherical shell 31 and is used to initiate the detonating fuse 33. The flame detonator 34 is arranged at the ignition end of the ignition assembly 25. Specifically, when the isolation ball 32 is released from the limit and rotates until the wire hole 321 coincides with the first direction Y, the ignition assembly 25 initiates the flame detonator 34, and the flame detonator 34 initiates the two detonating fuses 33, and the detonating fuses 33 then detonate the transfer explosive mechanism 4 below.

[0081] The first limit insurance assembly 35 is arranged on the spherical seat 311 of the spherical shell 31 and is used to limit the rotation of the isolation ball 32 in the spherical cavity.

[0082] The second limit insurance assembly 36 is arranged on the spherical cover 312 of the spherical shell 31 and is used to limit the rotation of the isolation ball 32 in the spherical cavity.

[0083] In this application, during the launch of the rain enhancement projectile, the first limit insurance assembly 35 releases the limit on the isolation ball 32 by using the inertial recoil force, and the second limit insurance assembly 36 releases the limit on the isolation ball 32 by using the centrifugal force, so that the isolation ball 32 can rotate in the spherical cavity. The isolation ball 32 rotates under the action of the centrifugal force, so that the wire hole 321 coincides with the first direction Y, so that one detonating fuse 33 is aligned with the flame detonator 34, and the other detonating fuse 33 is aligned with the transfer explosive mechanism 4 below, playing a role in transmitting the detonation.

[0084] In some embodiments, an inertial hole 3111 communicating with the spherical cavity is arranged on the spherical seat 311. The inertial hole 3111 is arranged along the first direction Y, and a safety pin hole communicating with the inertial hole is arranged on the spherical seat. The safety pin hole is arranged along the radial direction of the cavity;

[0085] The first limit insurance assembly 35 includes: an inertial pin 351 and a safety pin 352, where:

[0086] The inertial pin 351 is slidably arranged in the inertial hole 3111 along the first direction Y, and one end of the inertial pin 351 extends into the spherical cavity and is used to limit the isolation ball 32.

[0087] The safety pin 352 is arranged on the spherical seat 311 and is used to limit the inertial pin 351.

[0088] Specifically, a first limit groove is arranged on the isolation ball 32, and the top of the inertial pin 351 is located in the first limit groove, so as to limit the isolation ball 32 and prevent the isolation ball 32 from rotating in the spherical cavity.

[0089] In this application, when the rain enhancement projectile is launched, the inertial pin 351 moves downward under the action of the inertial recoil force, thereby cutting off the safety pin 352. The inertial pin 351 slides along the inertial hole 3111 to release the first limit on the isolation ball 32.

[0090] Further, the inertia hole 3111 includes an upper through hole and a lower through hole communicating with the bottom of the upper through hole. The upper through hole and the lower through hole are eccentrically arranged, and the inner diameter of the lower through hole is larger than that of the upper through hole.

[0091] Specifically, the size of the upper through hole matches the size of the inertia pin 351. When the inertia pin 351 is limited in the upper through hole by the safety pin 352, the isolation ball 32 is limited. When the safety pin 352 is cut off, the inertia pin 351 slides into the lower through hole, thereby releasing the limit on the isolation ball 32. One side of the inner side wall of the lower through hole is smoothly transitioned with the inner side wall of the upper through hole, facilitating the sliding of the inertia pin 351 from the upper through hole into the lower through hole. The inner diameter of the lower through hole is larger than that of the upper through hole. After the inertia pin 351 slides into the lower through hole, the inertia pin 351 is thrown to the outside of the lower through hole under the action of centrifugal force and abuts against the outer hole wall of the lower through hole, thereby preventing the inertia pin 351 from rebounding and improving the reliability of releasing the insurance of the isolation ball 32.

[0092] Further, the bottom of the inertia pin 351 is a bevel structure 3511, and the height of the inertia pin 351 is less than the length of the lower through hole along the first direction Y.

[0093] In this application, by setting the bottom of the inertia pin 351 as the bevel structure 3511. Specifically, the bevel structure 3511 is a structure with a lower inner side and a higher outer side. When the inertia pin 351 slides into the lower through hole, the inertia pin 351 inclines outward in the lower through hole under the action of the bevel structure 3511. The top (the end far from the bevel structure 3511) of the inertia pin 351 inclines outward and abuts against the outer hole wall of the lower through hole, thereby preventing the inertia pin 351 from rebounding into the upper through hole and further improving the reliability of releasing the insurance.

[0094] In some embodiments, a transverse through hole 3121 communicating with the spherical cavity is provided on the outer peripheral side of the ball cover 312, and the transverse through hole 3121 is arranged along the radial direction of the cavity.

[0095] As Figure 5 shown, the second limit insurance assembly 36 includes: a retaining piece 361, a centrifugal pin 362 and a centrifugal spring 363, wherein:

[0096] The retaining piece 361 is arranged at one end of the transverse through hole 3121 far from the spherical cavity. Specifically, a raised step is provided in the middle of one end of the retaining piece 361 facing the centrifugal pin 362 for guiding and clamping with the centrifugal spring 363 to prevent the centrifugal spring 363 from being displaced under the influence of the recoil force and causing the centrifugal pin 362 to release the insurance unreliable.

[0097] The centrifugal pin 362 is slidably arranged in the transverse through hole 3121, and one end of the centrifugal pin 362 away from the retaining piece 361 extends into the spherical cavity for limiting and isolating the ball 32. Specifically, the part of the centrifugal pin 362 extending into the spherical cavity is a solid body, so that it is not easily deformed when the isolation ball 32 is disturbed and knocked during the maintenance process.

[0098] The centrifugal spring 363 is arranged in the transverse through hole 3121, and both ends of the centrifugal spring 363 are respectively abutted against the centrifugal pin 362 and the retaining piece 361.

[0099] Specifically, a second limiting groove is arranged on the isolation ball 32, and the end of the centrifugal pin 362 extends into the spherical cavity and is inserted at the second limiting groove to limit the isolation ball 32.

[0100] In this application, during the firing of the rain enhancement projectile, the centrifugal pin 362 slides outwards under the action of centrifugal force, thereby compressing the centrifugal spring 363, and the end of the centrifugal pin 362 disengages from the second limiting groove of the isolation ball 32, thus releasing the second limit on the isolation ball 32. After the first limit and the second limit are all released, the isolation ball 32 can rotate in the spherical cavity.

[0101] The existing centrifugal safety components are two symmetrically arranged ones. In this way, when the fuse falls at an angle of 45° with the bottom facing downwards in a direction perpendicular to the layout plane, the centrifugal safety and the recoil safety will be released simultaneously. As Figure 5 shown, in this application, three second limiting safety components 36 are provided, and the three second limiting safety components 36 are arranged at equal angles along the radial direction of the cavity, which can effectively avoid the situation where the centrifugal safety and the recoil safety are released simultaneously, and the safety is higher.

[0102] In the related art, since in the structures of the vast majority of 37mm artificial hail suppression and rain enhancement projectiles, a catalyst charge column is placed between the detonation output end face of the fuse and the projectile explosive surface. At the same time, due to the limitation of the overall size of the fuse, the amount of booster charge is relatively small. When the fuse detonates the projectile, the catalyst charge column blocks the transmission of the detonation wave, affecting the reliability of the fuse to detonate the projectile, and easily causing problems such as incomplete detonation of the projectile, larger fragments, and misfires, resulting in accidents such as injury to people and damage to objects. Therefore, it is particularly important to adopt a more reliable fuse detonation output method.

[0103] As Figures 1 - 2 shown, in some embodiments, the bottom of the body 1 is provided with a third opening communicating with the cavity, and the rain enhancement projectile electronic time fuse further includes a booster mechanism 4 arranged at the third opening. The booster mechanism 4 is located below the spherical rotor safety and arming mechanism 3, and the booster mechanism 4 includes a first booster tube shell 41 and a booster charge 42 arranged in the first booster tube shell 41. A conical groove 411 is formed by the upward protrusion of the middle part of the bottom end of the first booster tube shell 41.

[0104] Specifically, the booster mechanism 4 further includes a second booster tube 43. The second booster tube 43 is located between the first booster tube housing 41 and the isolation ball 32. The second booster tube 43 is detonated by the detonator tube 33, and then the second booster tube 43 detonates the booster charge 42 in the first booster tube housing.

[0105] Generally, the density of silver iodide blocks in general anti-aircraft hail suppression and rain enhancement projectiles is high and they are located between the output end of the fuse booster tube and the charge of the rain enhancement projectile, which has a certain impact on detonation transmission. This is an important reason for the occasional occurrence of semi-exploded projectiles in existing products. In this application, by providing a conical groove 411 at the bottom of the first booster tube housing 41, when the booster mechanism explodes, the conical groove 411 forms a jet, and the detonation and the jet are more conducive to reliably detonating the artificial hail suppression and rain enhancement projectile containing silver iodide, improving the reliability of detonation.

[0106] In some embodiments, the power supply assembly 21 includes a power supply box 211, a lithium battery 212 disposed in the power supply box 211, and a power supply pin 213 electrically connected to the lithium battery 212. The power supply pin 213 is used to supply power to the circuit assembly 22.

[0107] In the related art, the magnetic recoil generator is used to generate electricity by the launch overload, charge the capacitor, and use the charged capacitor as the power supply to supply power to the timing circuit and the detonation circuit. Due to the limitation of the overall size of the fuse, the magnetic recoil generator has a small volume and limited power generation. Moreover, through the capacitor charge conversion, there is power loss, resulting in the problem of unreliable power supply. In this application, by using a lithium battery 212 with a small volume and large capacity, the power generation can be guaranteed and the reliability of power supply can be ensured.

[0108] As Figure 2 shown, specifically, the power supply box 211 is located above the circuit box 221. The bottom of the power supply box 211 is communicated with the top of the circuit box 221. The power supply assembly 21 further includes a power supply board 214. The power supply board 214 is electrically connected to the positive and negative electrodes of the lithium battery 212. The power supply pin 213 is welded to the power supply board 214, that is, the power supply pin 213 is electrically connected to the lithium battery 212 through the power supply board 214. The bottom of the power supply pin 213 extends into the circuit box 221 and is electrically connected to the circuit component 222. Among them, one power supply pin 213 is electrically connected to the second power-on port of the circuit component 222, and the other power supply pin 213 is electrically connected to the second housing 231. The power supply pin 213 is electrically connected to the second housing 231 through the copper wire on the surface of the circuit component 222, avoiding the use of external electrical connection wires.

[0109] As Figures 1 - 2As shown, in the present application, the cavity is arranged as a three - step stepped hole from top to bottom, namely the upper hole, the middle hole, and the lower hole. The diameters of the upper hole, the middle hole, and the lower hole increase gradually. The power supply box 211 is installed in the upper hole, the circuit box 221 is installed in the middle hole, and the ball rotor safety and arming mechanism 3 is installed in the lower hole. A pressing paper gasket 5 is arranged between the power supply box 211 and the inner top wall of the upper hole, an annular paper gasket 6 is arranged between the circuit box 221 and the inner top wall of the middle hole, and a buffer paper gasket 7 is arranged between the first detonator shell 41 and the second detonator 43.

[0110] The body 1 in the present application includes a first body 11 and a second body 12. The first body 11 and the second body 12 are connected by threads, which is convenient for installing the internal electronic delay firing mechanism 2 and the ball rotor safety and arming mechanism 3. The third opening at the bottom of the second body 12 is used to connect the rain - enhancing projectile.

[0111] During the launch of the rain - enhancing projectile electronic time fuse, the power - on switch assembly 23 makes the power supply assembly 21 and the circuit assembly 22 electrically connected through inertial recoil force. The power supply assembly 21 supplies power to the circuit assembly 22. The rain - enhancing projectile rotates at a high speed. The power - connection switch assembly 24 continuously electrically connects the circuit assembly 22 and the ignition assembly 25 under the action of centrifugal force, so that the circuit assembly 22 can supply power to the ignition assembly 25 at any time, causing the ignition assembly 25 to fire. The ignition assembly 25 is triggered through double insurance. When the rain - enhancing projectile fails and lands, since the rain - enhancing projectile no longer rotates at a high speed, the power - connection switch assembly 24 cannot connect the circuit assembly 22 and the ignition assembly 25, and will not continuously supply power to the ignition assembly, thus the ignition assembly 25 will not detonate. This can effectively avoid the situation that the ignition assembly continues to detonate after the rain - enhancing projectile lands, improving safety.

[0112] It should be noted that phrases such as "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Moreover, such phrases do not necessarily refer to the same embodiment. In addition, when combining specific features, structures, or characteristics with an embodiment, implementing such features, structures, or characteristics in combination with other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0113] It should be easily understood that the terms "on...", "above...", and "over..." in the present disclosure should be interpreted in the broadest manner, so that "on..." not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above..." or "over..." not only include the meaning of "above or over something", but may also include the meaning of "above or over something" without intermediate features or layers therebetween (i.e., directly on something).

[0114] In addition, for ease of description, spatial relative terms may be used in this document, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to another element or feature as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used in this document may be interpreted accordingly.

[0115] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic time fuse for a rain enhancement projectile, characterized in that, include: A body having a cavity arranged along a first direction; as well as An electronic time-delay ignition mechanism is arranged in the cavity of the body, and the electronic time-delay ignition mechanism comprises a power supply component, a circuit component, a power-on switch component, a power-on switch component and an ignition component, wherein the power-on switch component, the power supply component and the circuit component form a series circuit, and the power-on switch component, the circuit component and the ignition component form a series circuit; The power-on switch assembly is arranged along the first direction so that the power-on switch assembly can electrically connect the power supply assembly and the circuit assembly by utilizing inertial recoil; the power-on switch assembly is arranged along the radial direction of the cavity so that the power-on switch assembly can electrically connect the circuit assembly and the ignition assembly by utilizing centrifugal force; The circuit assembly comprises a circuit box and a circuit component disposed in the circuit box, wherein the circuit component has a first power-on port and a second power-on port; The power-on switch assembly comprises: A second housing having a second inner cavity arranged along the first direction and a second opening and a first pin hole communicating with the inner cavity, wherein the second opening is arranged at the bottom of the second inner cavity; An inertia column is slidably disposed in the second inner cavity, the inertia column is electrically connected to the second housing, a mounting groove is disposed at the bottom of the inertia column, and a second pin hole aligned with the first pin hole is disposed at the top of the inertia column; A crown-shaped elastic member, disposed in the mounting groove of the inertia column; a shear pin extending through the first pin hole and the second pin hole; and A plug-in conductive member, the plug-in conductive member is disposed at the second opening of the second shell, one end of the plug-in conductive member is electrically connected to the first upper power port of the circuit component, and the other end of the plug-in conductive member has an upper power pin for matching the crown elastic member; Among them, one of the positive electrode and the negative electrode of the power supply component is electrically connected to the second shell, and the other is electrically connected to the second power-on port.

2. The electronic time fuse for a rain enhancement projectile according to claim 1, characterized in that, The circuit component has a first power connection port and a second power connection port; The power switch assembly comprises: A first shell having a first inner cavity arranged along the radial direction of the cavity and a first opening communicating with the first inner cavity, wherein the first opening is arranged on the outer side of the first shell; An electrical connection pin is slidably disposed in the first inner cavity and is electrically connected to the first housing; A first insulating plate, disposed at the first opening of the first shell; an electrical connection elastic member, one end of which abuts against the first insulating plate, and the other end of which abuts against the electrical connection pin; and An electrical connection post is disposed on the first insulating plate, and one end of the electrical connection post is electrically connected to the first electrical connection port, and the other end of the electrical connection post is used to electrically connect to the electrical connection pin; Among them, one pole of the ignition component is electrically connected to the second power connection port of the circuit component, and the other pole is electrically connected to the first shell.

3. The electronic time fuse for a rain enhancement projectile according to claim 1, characterized in that, The plug-in conductive member also includes: A second insulating plate, disposed at the second opening of the second shell; and A transfer post is disposed on the second insulating plate, one end of the transfer post is electrically connected to the power-on pin, and the other end is connected to the first power-on port of the circuit component; Among them, the power-on needle is arranged on the second insulating plate.

4. The electronic time fuse for a rain enhancement projectile according to claim 1, characterized in that, The power-on switch assembly further includes a power-on elastic member, one end of the power-on elastic member abuts against the inner top wall of the second inner cavity of the second housing, and the other end abuts against the inertia column.

5. The electronic time fuse for a rain enhancement projectile according to claim 1, characterized in that, The coronal elastic member is fixedly arranged in the mounting groove of the inertia column. The middle part of the coronal elastic member is an arc surface structure protruding towards the central axis of the mounting groove. The arc surface structures of multiple coronal elastic members enclose a through hole for clamping the power-on needle, and the inner diameter of the through hole is smaller than the outer diameter of the power-on needle.

6. The electronic time fuse for a rain enhancement projectile according to claim 1, characterized in that, The rain enhancement bomb electronic time fuse further includes a ball rotor safety and arming mechanism arranged in the cavity. The ball rotor safety and arming mechanism includes: A spherical shell, the spherical shell includes a ball seat and a ball cover, and a spherical cavity is formed between the ball seat and the ball cover; An isolation ball, rotatably arranged in the spherical cavity of the spherical shell, and a wire hole penetrating through the isolation ball is arranged on the isolation ball; A detonating fuse, arranged in the wire hole of the isolation ball; A flame detonator, arranged on the ball cover of the spherical shell for detonating the detonating fuse, and the flame detonator is arranged at the ignition end of the ignition assembly; A first limit and safety component, arranged on the ball seat of the spherical shell for limiting the rotation of the isolation ball in the spherical cavity; and A second limit and safety component, arranged on the ball cover of the spherical shell for limiting the rotation of the isolation ball in the spherical cavity.

7. The electronic time fuse for rain enhancement projectile according to claim 6, wherein, An inertia hole communicated with the spherical cavity is arranged on the ball seat. The inertia hole is arranged along the first direction. A safety pin hole communicated with the inertia hole is arranged on the outer peripheral side of the ball seat, and the safety pin hole is arranged along the radial direction of the cavity; The first limit and safety component includes: An inertia pin, slidably arranged in the inertia hole along the first direction, and one end of the inertia pin extends into the spherical cavity for limiting the isolation ball; and A safety pin, arranged in the safety pin hole of the ball seat and penetrating through the inertia pin for limiting the inertia pin.

8. The electronic time fuse for rain enhancement projectile according to claim 7, wherein, The inertia hole includes an upper through hole and a lower through hole communicated with the bottom of the upper through hole. The upper through hole and the lower through hole are eccentrically arranged, and the inner diameter of the lower through hole is larger than the inner diameter of the upper through hole.

9. The electronic time fuse for rain enhancement projectile according to claim 8, wherein, The bottom of the inertia pin is a bevel structure, and the height of the inertia pin is smaller than the length of the lower through hole along the first direction.

10. The electronic time fuse for rain enhancement projectile according to claim 6, wherein, A transverse through hole communicated with the spherical cavity is arranged on the outer peripheral side of the ball cover. The transverse through hole is arranged along the radial direction of the cavity; The second limit and safety component includes: A retaining piece, arranged at one end of the transverse through hole far away from the spherical cavity; A centrifugal pin, slidably arranged in the transverse through hole, and one end of the centrifugal pin far away from the retaining piece extends into the spherical cavity for limiting the isolation ball; and A centrifugal spring, arranged in the transverse through hole, and both ends of the centrifugal spring respectively abut against the centrifugal pin and the retaining piece.

11. The electronic time fuse for rain enhancement projectile according to claim 6, wherein, A third opening communicating with the cavity is provided at the bottom of the main body. The rain enhancement bomb electronic time fuse further includes an explosive transfer mechanism disposed at the third opening. The explosive transfer mechanism is located below the ball rotor safety and arming mechanism. The explosive transfer mechanism includes a first explosive transfer tube housing and an explosive charge disposed in the first explosive transfer tube housing. A conical groove is formed by the upward protrusion of the middle part of the bottom end of the first explosive transfer tube housing.

12. The electronic time fuse for rain enhancement projectile according to claim 1, wherein, The power supply assembly includes a power supply box, a lithium battery disposed in the power supply box, and a power supply pin electrically connected to the lithium battery. The power supply pin is used to supply power to the circuit assembly.

Citation Information

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