Front-back two-stage series warhead detonation time sequence control device
A modular circuit system constructed through voltage comparators and delayed closing relays accurately controls the detonation timing of the two-stage warhead, solving the problem of difficult precise control in existing technologies and improving the destructive effectiveness of the warhead and system reliability.
Patent Information
- Application Number
- CN202510871022.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2025-09-30
AI Technical Summary
The existing two-stage tandem warhead detonation timing control technology is difficult to achieve precise control, resulting in insufficient warhead destructive effectiveness.
A modular circuit system is constructed by using voltage comparators and programmable delayed closing relays. The voltage comparator monitors the status of the subsequent circuit and triggers the delayed closing relay to accurately control the detonation time interval between the front and rear warheads.
The timing error between the front and rear stage explosions is achieved to be less than 1%, which improves the destructive effectiveness of the warhead, reduces circuit complexity and failure risk, adapts to different warhead types, and improves the safety and reliability of the system.
Smart Images
Figure CN120720937A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of detonation control, and in particular relates to a detonation timing control device for a front and rear two-stage series-connected warhead. Background Art
[0002] Traditional mechanical fuzes, due to their use of sensitive explosives, present significant safety risks during manufacturing. Furthermore, their reliability is significantly compromised in complex environments, making them unable to meet the demands of the modern battlefield. To address these challenges, fully electronic fuzes have emerged. They utilize insensitive charges in place of sensitive explosives, fundamentally improving safety and reliability while maintaining stable operation in complex environments. The application of fully electronic fuzes to tandem warheads significantly enhances the safety, reliability, and electromagnetic interference resistance of weapons such as anti-tank missiles, making them a key area of development for tandem warhead technology.
[0003] Existing technologies for controlling the detonation sequence of two-stage tandem warheads have numerous limitations. Some technologies struggle to precisely control the time interval between the detonation of the preceding and succeeding warheads, preventing the warheads from fully achieving their destructive effectiveness. Summary of the Invention
[0004] The present invention provides a device for controlling the detonation sequence of a front and rear two-stage serially connected warhead.
[0005] The technical solution for achieving the purpose of the present invention is: a front and rear two-stage series warhead detonation timing control device, comprising battery pack one, a voltage comparator, battery pack two, a delayed closing relay and battery pack three, the anode of the rear-stage blasting detonator is connected to the positive pole of battery pack one; the positive pole of battery pack one is simultaneously connected to the negative pole of the power supply end of the voltage comparator; the negative pole of battery pack one is connected to the cathode of the rear-stage blasting detonator, and the battery pack one is also grounded; the anode of the front-stage blasting detonator is connected to the positive poles of battery pack one and battery pack two; the negative pole of battery pack two is connected to the cathode of the front-stage blasting detonator via the output end of the relay, and the negative pole of battery pack two is grounded, and the output end of the voltage comparator is connected to the control end of the delayed closing relay for controlling the on / off state of the relay; the control signal of the delayed closing relay is triggered by the voltage comparator; the positive pole of battery pack three is connected to the positive pole of the power supply end of the voltage comparator, and the negative pole of battery pack three is grounded.
[0006] Compared with the prior art, the present invention has the following significant advantages:
[0007] (1) The front-end and rear-end circuit systems of the present invention have a simple structure and a high degree of modularity, and different circuit elements and wire routings can be adjusted or replaced to adapt to different warheads.
[0008] (2) The present invention uses a programmable delayed closing relay, which can preset different delayed detonation times according to different mission requirements to achieve better damage effects.
[0009] (3) The present invention reduces the complexity of the detonation circuit by using a voltage comparator and a delayed closing relay, thereby improving the accuracy and stability of the circuit control system.
[0010] The present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the application of a two-stage series warhead detonation timing control device. DETAILED DESCRIPTION
[0012] A device for controlling the detonation sequence of a two-stage series warhead, the core of which is to use electronic components to achieve the timing linkage of the explosion of the rear stage and the front stage, and to ensure the reliability of the system under different environments. The device comprises a battery pack 1, a voltage comparator, a battery pack 2, a time-delayed closing relay and a battery pack 3. The anode of the rear-stage detonating cap is connected to the positive pole of the battery pack 1; the positive pole of the battery pack 1 is simultaneously connected to the negative pole of the power supply end of the voltage comparator; the negative pole of the battery pack 1 is connected to the cathode of the rear-stage detonating cap, and the battery pack 1 is simultaneously grounded; the anode of the front-stage detonating cap is connected to the positive poles of the battery pack 1 and the battery pack 2; the negative pole of the battery pack 2 is connected to the cathode of the front-stage detonating cap via the output end of the relay, and the negative pole of the battery pack 2 is grounded at the same time. The output end of the voltage comparator is connected to the control end of the time-delayed closing relay for controlling the on / off state of the relay; the control signal of the time-delayed closing relay is triggered by the voltage comparator; the positive pole of the battery pack 3 is connected to the positive pole of the power supply end of the voltage comparator, and the negative pole of the battery pack 3 is grounded.
[0013] In a further embodiment, the fuze safety pin, impact fuze, and battery pack are arranged in the area where the subsequent detonating cap and the subsequent warhead charge are located.
[0014] In a further embodiment, the voltage comparator, battery pack 2, delayed closing relay and battery pack 3 are arranged in the area where the front-stage detonator and the front-stage warhead charge are located.
[0015] In a further embodiment, a fuse safety pin and a percussion fuse are connected between the subsequent detonator and the battery pack 1.
[0016] In a further embodiment, the delay time of the delayed closing relay is set to 0 to 500 milliseconds.
[0017] In the present invention, a circuit composed of battery pack 1 and a rear-stage detonator serves as a front-stage circuit; a circuit composed of a voltage comparator, battery pack 2, a delayed closing relay, and battery pack 3 serves as a rear-stage circuit; in the present invention, the rear-stage charge explodes and destroys the rear-stage circuit, the voltage received by the front-stage circuit through the connecting wire disappears, the voltage comparator located at the front stage senses the voltage change, and then outputs a control current to the front-stage detonating device, controlling the detonation of the front-stage warhead through a delayed detonation sequence, causing blast damage to the target.
[0018] In the present invention, each circuit element is connected by a wire to form a complete circuit system, and the installation method and routing path of the wire can be adjusted according to different warhead structures.
[0019] The circuit system of this invention uses a voltage comparator to monitor the status of the downstream circuit in real time. This component operates in a voltage range of 3V to 36V DC, has a response time of ≤1.5 microseconds, and operates stably over a wide temperature range of -55°C to 125°C. The downstream circuit is powered by two to four batteries connected in series and connected to an igniter via a trigger-type safety switch and a mechanical safety. When both the trigger-type safety switch and the mechanical safety are closed, the igniter triggers the insensitive charge detonator with a 1A pulse current, thereby detonating the downstream warhead charge. After the downstream detonation is complete, the circuit is physically damaged and powered off. The voltage comparator detects a drop below the 3V threshold and sends a control signal to a time-delayed closing relay via an optocoupler isolator. This relay supports a digitally programmable delay of 0 to 500 milliseconds, with a built-in digital potentiometer enabling adjustment with ±1ms accuracy. A typical setting is 220ms to accommodate the extended damage phase of the upstream TNT / Al mixture explosive. The delayed closing relay starts to operate after receiving the control signal. The front-stage circuit is powered by 2-4 batteries in parallel. After the relay is closed, the igniter is started, triggering the front-stage detonator to detonate the warhead.
[0020] The circuit connection uses silver-plated copper core shielded wire covered with a composite sheath (temperature resistant to at least 200°C), which runs through the warhead's axial channel and extends through the front and rear stages. The rear stage battery pack is embedded in a groove in the 3mm thick TC4 titanium alloy shell, with a 3mm silicone cushioning layer at the bottom, and a shock resistance of ≥500kPa.
[0021] The present invention achieves a front- and rear-stage explosion sequence error of less than 1% through the synergistic effect of μs-level voltage detection and ms-level delay control. At the same time, the titanium alloy explosion-proof chamber, insensitive charge detonator and modular design take into account both safety and adaptability. The igniter and detonator can be quickly replaced to adapt to different warhead types such as armor-piercing projectiles and thermobaric projectiles, significantly improving the destructive effectiveness against armored targets and bunkers.
[0022] From an overall structural perspective, the present invention consists of a post-stage circuit and a pre-stage circuit. Each circuit is equipped with its own independent battery pack and detonation sequence, connected by wires, forming a complete control system for controlling the detonation sequence. When the first and second fuses in the detonation control system are triggered, the detonator in the post-stage circuit is activated first, rapidly detonating the detonating caps in the post-stage warhead. With the detonation of the detonating caps, the post-stage warhead charge is successfully detonated. The explosion of the post-stage warhead charge not only produces damaging elements that damage the target but also destroys the post-stage circuit. At this point, the voltage comparator in the pre-stage circuit senses the loss of post-stage voltage and outputs a control current to a time-delayed closing relay. After a preset delay, the relay closes, powering the post-stage battery. Current flows into the detonator in the post-stage circuit, detonating the detonating caps in the post-stage warhead, and thus the post-stage warhead charge, causing secondary damage to the target. The present invention's simple circuit structure reduces circuit design and manufacturing costs while also avoiding the potential risk of failure associated with complex mechanical structures, improving system reliability. In addition, by precisely controlling the detonation sequence of the two-stage warhead, the destructive effect of the warhead on various targets can be effectively improved.
Claims
1. A device for controlling the detonation sequence of a two-stage series warhead, characterized in that: The invention comprises a battery pack 1 (3), a voltage comparator (8), a battery pack 2 (9), a time-delay closing relay (10) and a battery pack 3 (11), wherein the anode of the rear-stage detonator (4) is connected to the positive electrode of the battery pack 1 (3); the positive electrode of the battery pack 1 (3) is simultaneously connected to the negative electrode of the power supply end of the voltage comparator (8); the negative electrode of the battery pack 1 (3) is connected to the cathode of the rear-stage detonator (4), and the battery pack 1 (3) is simultaneously grounded; the anode of the front-stage detonator (7) is connected to the battery pack 1 (3) and the battery pack 3 (11). The positive electrode of the second battery pack (9) is connected; the negative electrode of the second battery pack (9) is connected to the cathode of the front-stage detonator (7) via the output end of the relay, and the negative electrode of the second battery pack (9) is grounded. The output end of the voltage comparator (8) is connected to the control end of the delayed closing relay (10) for controlling the on-off state of the relay (10); the control signal of the delayed closing relay (10) is triggered by the voltage comparator (8); the positive electrode of the third battery pack (11) is connected to the positive electrode of the power supply end of the voltage comparator (8), and the negative electrode of the third battery pack (11) is grounded.
2. The device for controlling the detonation sequence of the two-stage tandem warhead according to claim 1, characterized in that: The fuze safety pin (1), the impact fuze (2), and the battery pack (3) are arranged in the area where the subsequent detonating cap (4) and the subsequent warhead charge (5) are located.
3. The device for controlling the detonation sequence of the two-stage tandem warhead according to claim 1, characterized in that: The voltage comparator (8), battery pack 2 (9), time-delay closing relay (10) and battery pack 3 (11) are arranged in the area where the front-stage detonator (7) and the front-stage warhead charge (6) are located.
4. The device for controlling the detonation sequence of the two-stage tandem warhead according to claim 1, characterized in that: A fuse safety pin (1) and a contact fuse (2) are connected between the subsequent detonator (4) and the battery pack (3).
5. The device for controlling the detonation sequence of the two-stage tandem warhead according to claim 1, characterized in that: The delay time of the delayed closing relay (10) is set to 0 to 500 milliseconds.