Firework unpacking powder electronic fuze device with inertia insurance

Abstract

The invention provides a firework unpacking powder electronic fuze device with inertia insurance, which comprises a first electronic fuze interface and a second electronic fuze interface which are used for being connected with an external controller, transmitting instructions and supplying power; the special chip integrates a power management module, a communication module, a self-checking module, an accurate delay module and an electronic ignition function module, and controls the charging and discharging of the ignition capacitor and the ignition time sequence; the inertia safety mechanism comprises a steel ball, a first spring, a second spring and a key switch; the inertia safety mechanism is unlocked through inertia force when the display shell is successfully launched, electrical connection between the ignition capacitor and the igniter wire / ignition resistor is established, one end of the igniter wire / ignition resistor is connected with the positive electrode of the ignition capacitor through the key switch, and the other end of the ignition capacitor is grounded through the ignition switch. The ignition capacitor and the communication capacitor form a double-capacitor structure, the communication capacitor is charged in a communication stage, and the ignition capacitor is charged only after a charging instruction and before an initiation instruction; and the ignition switch is controlled by the special chip and closes an ignition loop when the preset delay is finished.

Description

Technical Field

[0001] The invention relates to the technical field of fireworks electronic fuses, and in particular to a fireworks opening charge electronic fuse device with inertia insurance. Background Art

[0002] The existing electronic fuze technology solutions for fireworks rely on pure electronic control and lack physical insurance mechanisms, which cannot cope with abnormal scenarios such as launch failure and circuit failure. Specifically:

[0003] Risk of false triggering: The single capacitor design causes the ignition circuit to be energized during the non-initiation phase, increasing the probability of false triggering.

[0004] Intrinsic safety defects: The design of the capacitor shared by communication and ignition is difficult to meet the explosion-proof standards of high-risk locations.

[0005] Adaptability limitations: Unable to dynamically adapt the launch parameters (such as acceleration and initial velocity) of different types of fireworks shells, and poor versatility.

[0006] The patent with publication number CN216745748U discloses an electronic fuse for controlling the height of fireworks. Its ignition capacitor and patch bridge wire are inherently electrically connected and cannot be disconnected. When the control host sends a detonation command to the chip interface, the firework shell is still in the launching device. If the launch fails, the chip will still execute delay and ignition, and cannot terminate the detonation of the opening charge.

[0007] The patent with publication number CN205784910U discloses an electronic ignition delay fireworks system, which adopts a single capacitor solution. The energy storage capacitor C1 is used for both chip operation and ignition drive. The ignition circuit is energized during the communication stage before the detonation command. The solution does not have the function of terminating the detonation of the packaged powder after a launch failure. Summary of the invention

[0008] In view of the defects in the prior art, the object of the present invention is to provide a fireworks opening charge electronic fuse device with inertia insurance.

[0009] The fireworks package opening charge electronic fuse device with inertia insurance provided by the present invention comprises:

[0010] The first electronic fuze interface and the second electronic fuze interface are used to connect to an external controller and transmit instructions and power supply;

[0011] Special chip, integrating power management, communication, self-test, precise delay and electronic ignition function modules, used to control the charging and discharging of the ignition capacitor and the ignition timing;

[0012] Inertial safety mechanism, including a steel ball, a first spring, a second spring and a push-button switch; the steel ball and the first spring are coaxially installed in the inertial safety mechanism, and the steel ball is located at the top of the first spring; the second spring is mechanically linked with the push-button switch and is coaxially installed in the inertial safety mechanism; the push-button switch is located at the end of the inertial safety mechanism; the inertial safety mechanism is unlocked by inertial force when the fireworks shell is successfully launched, establishing an electrical connection between the firing capacitor and the bridge wire / firing resistor. One end of the bridge wire / firing resistor is connected to the positive pole of the firing capacitor through the push-button switch, and the other end is grounded through the firing switch.

[0013] A dual-capacitor structure composed of a firing capacitor and a communication capacitor, where the communication capacitor is charged during the communication stage, and the firing capacitor is only charged after the charging instruction and before the detonation instruction; the positive pole of the firing capacitor is connected to the charging module of the dedicated chip, and the negative pole is grounded.

[0014] The firing switch, controlled by the dedicated chip, is connected in series between the firing capacitor and the bridge wire / firing resistor, and is used to close the firing circuit at the end of the preset delay.

[0015] The first electronic fuse interface and the second electronic fuse interface are connected to the power input and communication pins of the dedicated chip; the dedicated chip is connected to the firing switch, the firing capacitor and the communication capacitor through circuit board wiring.

[0016] Preferably, the power management module of the dedicated chip includes:

[0017] A circuit that draws power from the first electronic fuse interface and the second electronic fuse interface and charges the communication capacitor and the firing capacitor;

[0018] An isolation mechanism that keeps the firing capacitor without voltage during the communication detection stage;

[0019] A feedback module that detects the connectivity of the bridge wire / firing resistor and the short-circuit state of the firing capacitor during the self-check stage.

[0020] Preferably, the unlocking condition of the inertial safety mechanism is:

[0021] The launch acceleration of the fireworks shell is greater than a preset threshold, so that the compression change ΔX of the first spring satisfies ΔX≥A, where A is the minimum displacement of the steel ball that satisfies the release of the second spring from the compressed state and causes the inertial safety to change from the locked state to the unlocked state.

[0022] Preferably, the discharge trigger conditions of the firing capacitor include:

[0023] At the end of the preset delay time T delay The dedicated chip outputs an instruction to close the firing switch;

[0024] The inertial safety mechanism is in the unlocked state, the push-button switch is closed, and a complete firing circuit is formed.

[0025] Preferably, the preset delay time T delay is calculated by the following formula:

[0026]

[0027] where h is the explosion height, v is the initial velocity of the fireworks shell leaving the barrel, θ is the deviation angle of the launch tube, and g is the acceleration due to gravity.

[0028] Preferably, the electronic fuse adapts to the parameter configurations of different models of fireworks shells, including:

[0029] By adjusting the spring constant k of the first spring and the radius r of the steel ball, it matches different ranges of launch acceleration;

[0030] The dedicated chip supports dynamically injecting the delay time parameter according to the model of the fireworks shell.

[0031] Preferably, the first electronic fuse interface and the second electronic fuse interface support the switching mode of low-voltage communication and high-voltage charging:

[0032] In the low-voltage mode, the dedicated chip receives the controller instruction and charges the communication capacitor;

[0033] In the high-voltage mode, the firing capacitor is quickly charged to the voltage required for detonation through the first electronic fuse interface and the second electronic fuse interface.

[0034] Preferably, the electronic fuse further includes a safety verification mechanism:

[0035] The controller sends an encrypted instruction to the dedicated chip, and unlocks the charging permission of the firing capacitor after passing the verification;

[0036] When the self-check is abnormal or the password verification fails, the dedicated chip feeds back an error code and terminates the launch process.

[0037] Preferably, the locking state of the inertial safety mechanism realizes physical isolation through a mechanical structure:

[0038] In the unlocked state, the second spring is compressed and the key switch is kept open;

[0039] When unlocking, the second spring releases its elastic force and pushes the key switch to close.

[0040] Preferably, the hardware implementation method of the electronic fuse includes:

[0041] Execute the logic function of the dedicated chip through a programmable logic controller or an embedded microcontroller;

[0042] Adopt an intrinsically safe circuit design to ensure that the voltages of the communication capacitor and the firing capacitor meet the explosion-proof requirements.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] (1) When the propellant successfully launches the fireworks shell into the air, the inertial insurance is released, and the programmable dedicated chip precisely controls the timed and altitude-controlled detonation of the unpacking charge; when the propellant fails to launch the fireworks shell into the air or the initial velocity is too low, the inertial insurance cannot be released, and the electronic fuse cannot detonate the unpacking charge, avoiding the ground explosion of the fireworks shell at the launch site and improving the safety of the launch operation site;

[0045] (2) By changing the traditional fuse ignition to electronic ignition, the accuracy of the detonation time of the unpacking charge of the fireworks is improved, and a better fireworks effect is achieved; through the inertial insurance, the problem of the delayed explosion of the unpacking charge on the ground or in the launch tube when the propellant fails to launch the fireworks shell into the air or the initial velocity is too low is solved, and the safety of the launch site is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Other features, objects, and advantages of the present invention will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0047] Figure 1 It is a schematic structural diagram of an electronic fuse device for an unpacking charge of fireworks with inertial insurance;

[0048] Figure 2 It is the locked state of the inertial insurance;

[0049] Figure 3 It is the unlocked state of the inertial insurance;

[0050] Figure 4 It is a graph of the detonation altitude changing with time;

[0051] 1 - First electronic fuse interface, 2 - Second electronic fuse interface, 3 - Dedicated chip, 4 - Inertial insurance, 5 - Bridge wire / firing resistor, 6 - Firing switch, 7 - Firing capacitor, 8 - Communication capacitor, 9 - Steel ball, 10 - First spring, 11 - Second spring, 12 - Button switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several changes and improvements can still be made. These all belong to the protection scope of the present invention.

[0053] Embodiment

[0054] The present invention provides an electronic fuse device that can accurately control the opening charge of a fireworks shell. The fuse has inertial insurance to improve the safety of the launch site.

[0055] Specifically, as Figure 1 , the electronic fuse device for the fireworks opening charge with inertial insurance includes:

[0056] The first electronic fuse interface 1 and the second electronic fuse interface 2 are used to connect to an external controller and transmit instructions and power supply.

[0057] A dedicated chip 3 integrates power management, communication, self-check, precise delay, and electronic ignition function modules, and is used to control the charging and discharging of the firing capacitor 7 and the ignition timing; A and B are two pins of the dedicated chip 3, which are respectively connected to the first electronic fuse interface 1 and the second electronic fuse interface 2.

[0058] The inertial insurance mechanism 4 includes a steel ball 9, a first spring 10, a second spring 11, and a key switch 12; the steel ball 9 and the first spring 10 are coaxially installed in the inertial insurance mechanism 4, and the steel ball 9 is located at the top of the first spring 10; the second spring 11 is mechanically linked with the key switch 12 and is coaxially installed in the inertial insurance mechanism 4; the key switch 12 is located at the end of the inertial insurance mechanism 4; the inertial insurance mechanism 4 is unlocked by inertial force when the fireworks shell is successfully launched, establishing an electrical connection between the firing capacitor 7 and the bridge wire / firing resistor 5. One end of the bridge wire / firing resistor 5 is connected to the positive electrode of the firing capacitor 7 through the key switch 12, and the other end is grounded through the firing switch 6.

[0059] A dual-capacitor structure composed of the firing capacitor 7 and the communication capacitor 8, where the communication capacitor 8 is charged during the communication stage, and the firing capacitor 7 is only charged after the charging instruction - before and after the detonation instruction; the positive electrode of the firing capacitor 7 is connected to the charging module of the dedicated chip 3, and the negative electrode is grounded.

[0060] The firing switch 6, controlled by the dedicated chip 3, is connected in series between the firing capacitor 7 and the bridge wire / firing resistor 5, and is used to close the firing circuit at the end of the preset delay.

[0061] The first electronic fuse interface 1 and the second electronic fuse interface 2 are connected to the power input and communication pins of the dedicated chip 3; the dedicated chip 3 is connected to the firing switch 6, the firing capacitor 7, and the communication capacitor 8 through circuit board wiring.

[0062] The electronic fuze device controls the detonation of the unpacking charge through a dedicated chip. The dedicated chip has functions such as power management, communication, self-check, precise delay, and electronic ignition. The dedicated chip has a power management function, which can obtain power from a non-polar dual bus to supply power to the electronic fuze, charge the communication capacitor and the firing capacitor, and there is no voltage on the firing capacitor during the communication detection stage. The dedicated chip has a communication function, which can receive instructions from the controller on the non-polar dual bus and give feedback. The dedicated chip has a self-check function, which can check the electronic ignition element before launch, and give an error warning when abnormalities such as a broken bridge wire / firing resistor or a short circuit of the firing capacitor occur, prompting personnel to conduct inspections and replacements. The dedicated chip has a precise delay function, which can accurately control the electronic ignition time of the unpacking charge according to a preset delay after receiving the detonation instruction from the controller. The dedicated chip has an electronic ignition function. When the preset delay is reached and the inertial safety is unlocked, the firing capacitor discharges to heat the bridge wire / firing resistor to detonate the primer head, and then detonate the unpacking charge of the fireworks shell.

[0063] Such as Figure 2 and Figure 3 , the electronic fuze device has an inertial safety. The safety is default in the non-unlocked state, physically isolating the electrical connection between the firing capacitor and the bridge wire. When the propellant successfully launches the fireworks shell into the air, the safety is automatically unlocked under the action of inertia, the electrical connection between the firing capacitor and the bridge wire is established, and when the preset delay is reached, the firing capacitor discharges to heat the bridge wire to detonate the primer head, and then detonate the unpacking charge of the fireworks shell. When the propellant fails to launch the fireworks shell into the air or the initial velocity is too low, the inertial safety cannot be unlocked, the electrical connection between the firing capacitor and the bridge wire is not established, and when the preset delay is reached, the firing capacitor cannot heat the bridge wire to detonate the primer head, terminating the detonation of the unpacking charge and preventing the unpacking charge from exploding on the ground at the launch site.

[0064] Let the deviation angle of the launch tube be θ, the explosion height be h, and the height of the inner tube of the launch tube be L. Assume that the fireworks shell starts to accelerate uniformly with an acceleration a in the launch tube from time t = 0, exits the muzzle at time t1, and reaches the explosion height h at time t2. And assume that h is the maximum height that the fireworks shell can reach (this assumption requires the minimum acceleration and the highest requirement for unlocking the safety), such as Figure 4 , then the following formulas exist:

[0065]

[0066] v = at1

[0067]

[0068] vcosθ = g(t2 - t1)

[0069] The theoretical minimum acceleration a, minimum initial velocity v, and muzzle exit time t1 of different specifications of fireworks shells at different deviation angles and explosion heights can be obtained.

[0070]

[0071] For example, when the skew angle θ is 10 degrees, the theoretical minimum acceleration a (m / s2) of the minimum / maximum explosion height of each type of fireworks shell is as follows:

[0072]

[0073]

[0074] The theoretical minimum initial velocity v (m / s) of the minimum / maximum explosion height of each type of fireworks shell is as follows:

[0075]

[0076] The theoretical muzzling time t1 (ms) of the minimum / maximum explosion height of each type of fireworks shell is as follows:

[0077]

[0078] The sources of L and h used in the above data calculation are Table 1 of GB20208-2006 and Table 4 of GB19594-2015.

[0079] The above results are the theoretical minimum acceleration value, theoretical minimum initial velocity value, and theoretical muzzling time that satisfy the detonation height. In actual engineering, different types and dosages of propellants will result in different initial velocities, and the detonation height may not necessarily be the maximum height. The initial velocity v of the fireworks shell should be estimated according to the actual launch plan, and the delay value T should be calculated according to the following formula in combination with the detonation height h delay :

[0080]

[0081] The appropriate first spring 10 and steel ball 9 should be selected to match the launch parameters of the fireworks shell to achieve the unlocking function of inertial insurance. Let Δx0 be the compression amount of the first spring 10 at static state, Δx(t) be the compression amount of the first spring 10 during the acceleration process of the fireworks shell, 0 ≤ t ≤ t1, t1 is the muzzling time of the fireworks shell, and the mass of the steel ball The spring stiffness coefficient k.

[0082] At the initial moment, due to the instantaneously changed acceleration, the spring will start to perform simple harmonic vibration around the new equilibrium point from Δx0. The functional relationship between the compression amount Δx of the first spring 10 and the time t is as follows:

[0083]

[0084] Among them, is Δx0, is the new equilibrium compression amount of the system, is the amplitude of simple harmonic vibration, is the natural angular frequency, and this formula is only valid when 0 ≤ t ≤ t1.

[0085] Furthermore, the functional relationship between the compression change amount of the first spring 10 and time t is:

[0086]

[0087] In a certain preferred solution, the inertial insurance requires unlocking when the compression change amount ΔX of the first spring 10 is ≥ r. By selecting appropriate k and m, such that when 0 ≤ t ≤ t1, max(ΔX(t)) ≥ 2r.

[0088] For example, select r = 1mm, the density of the steel ball ρ = 7.85 g / cm 3 , m = 3.29×10 -5 kg. In order for all types of fireworks cartridges to unlock the inertial insurance during normal launch within the minimum - maximum explosion height, the acceleration a should be slightly less than the theoretical minimum value, and the muzzling time t1 should be slightly less than the corresponding theoretical value. Select: a = 1000 m / s 2 , t1 = 15 ms. Select Then there exists t = 3.135 ms such that ΔX(t) ≈ 2r. During actual launch, the acceleration a > 1000 m / s 2 , and at t = 3.135 ms, ΔX(t) > 2r, meeting the unlocking condition.

[0089] The implementation process of the electronic fuse device for fireworks opening medicine with inertial insurance is as follows:

[0090] Step S1, connect the first electronic fuse interface 1, the second electronic fuse interface 2, and the controller with a non - polar double - bus.

[0091] Step S2.1, the controller supplies low voltage to the non - polar double - bus;

[0092] Step S2.2, the dedicated chip 3 powers on and starts to work, and can receive instructions from the controller;

[0093] Step S2.3, the communication capacitor 8 is charged, the firing capacitor 7 is not charged, and the firing switch 6 is disconnected;

[0094] Step S3.1, the controller sends a self - check instruction, and the dedicated chip 3 self - checks the firing elements (the firing capacitor 7 and the bridge wire / firing resistor 5) and feeds back the result. If the self - check is abnormal, the controller alarms and terminates the launch, otherwise continue;

[0095] Step S3.2, the controller sends a verification password instruction, and the dedicated chip 3 feeds back the result (success or failure). If it fails, the controller alarms and terminates the launch, otherwise continue;

[0096] Step S3.3, the controller calculates the delay time T according to the launch planDelay And inject the instruction into the dedicated chip 3, and the dedicated chip 3 feeds back the injection result (success or failure). If it fails, the controller gives an alarm and terminates the launch; otherwise, continue.

[0097] Step S4, after confirming the safety of on-site operation, start the charging process.

[0098] Step S4.1, the controller sends a charging instruction, and the dedicated chip 3 controls the charging of the firing capacitor 7.

[0099] Step S4.2, the controller supplies high voltage to the non-polar double bus.

[0100] Step S4.3, the controller waits for the firing capacitor 7 to be fully charged.

[0101] Step S5, after confirming the safety of on-site operation, control the ignition according to the launch plan.

[0102] Step S5.1, the controller gives an ignition instruction, and the ignition instruction is synchronized with the ignition of the propellant.

[0103] Step S5.2, the dedicated chip 3 starts to count down and enters the extended low-power state at the same time.

[0104] Step S6.1, the propellant pushes the fireworks shell to accelerate along the launch tube, and the steel ball 9 compresses the first spring 10 under the action of inertia. When the change amount of the compression amount of the first spring 10 is greater than the unlocking threshold, the second spring 11 is released from the compressed state and closes the key switch 12, and the inertial insurance is released; if the launch fails, the inertial insurance remains in the unlocked state and the key switch 12 remains open.

[0105] Step S6.2, the first electronic fuse interface 1 and the second electronic fuse interface 2 are disengaged from the non-polar double bus, and the communication capacitor 8 and the firing capacitor 7 supply power to the dedicated chip.

[0106] Step S7.1, after the fireworks shell exits the barrel, it moves in a parabola.

[0107] Step S7.2, the dedicated chip continues to count down.

[0108] Step S7.3, when the countdown of the dedicated chip ends, control the firing switch 6 to close.

[0109] Step S7.4, if the inertial insurance 6 has been released, the firing capacitor 7 discharges to heat the bridge wire / firing resistor, detonating the primer, and then detonating the unpacking charge; if the inertial insurance 6 has not been released, the firing capacitor 7 cannot discharge and the unpacking charge is not detonated.

[0110] Those skilled in the art know that, in addition to implementing the systems, devices, and their respective modules provided by the present invention in the form of pure computer-readable program code, the method steps can be logically programmed to enable the systems, devices, and their respective modules provided by the present invention to be implemented in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers, etc., to achieve the same program. Therefore, the systems, devices, and their respective modules provided by the present invention can be considered as a kind of hardware component, and the modules included therein for implementing various programs can also be regarded as the structures within the hardware component; the modules for implementing various functions can also be regarded as either software programs for implementing the method or the structures within the hardware component.

[0111] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An electronic fuse device for firecracker opening medicine with inertial insurance, characterized in that, Comprising: A first electronic fuse interface (1) and a second electronic fuse interface (2) for connecting to an external controller and transmitting instructions and power supply; A dedicated chip (3) integrating power management, communication, self - testing, precise delay, and electronic ignition function modules for controlling the charging and discharging of the firing capacitor (7) and the ignition timing; An inertial safety mechanism (4), including a steel ball (9), a first spring (10), a second spring (11), and a key switch (12); the steel ball (9) and the first spring (10) are coaxially installed inside the inertial safety mechanism (4), and the steel ball (9) is located at the top of the first spring (10); the second spring (11) is mechanically linked with the key switch (12) and is coaxially installed inside the inertial safety mechanism (4); the key switch (12) is located at the end of the inertial safety mechanism (4); the inertial safety mechanism (4) is unlocked by inertial force when the fireworks shell is successfully launched, establishing an electrical connection between the firing capacitor (7) and the bridge wire / firing resistor (5), one end of the bridge wire / firing resistor (5) is connected to the positive electrode of the firing capacitor (7) through the key switch (12), and the other end is grounded through the firing switch (6); A dual - capacitor structure composed of a firing capacitor (7) and a communication capacitor (8), where the communication capacitor (8) is charged during the communication stage, and the firing capacitor (7) is only charged after the charging instruction and before the detonation instruction; the positive electrode of the firing capacitor (7) is connected to the charging module of the dedicated chip (3), and the negative electrode is grounded; A firing switch (6), controlled by the dedicated chip (3), is connected in series between the firing capacitor (7) and the bridge wire / firing resistor (5) for closing the firing circuit at the end of the preset delay; The first electronic fuse interface (1) and the second electronic fuse interface (2) are connected to the power input and communication pins of the dedicated chip (3); the dedicated chip (3) is connected to the firing switch (6), the firing capacitor (7), and the communication capacitor (8) through circuit board wiring.

2. The electronic fuse device for firework unpacking explosive with inertial insurance according to claim 1, wherein The power management module of the dedicated chip (3) includes: A circuit for taking power from the first electronic fuse interface (1) and the second electronic fuse interface (2) and charging the communication capacitor (8) and the firing capacitor (7); An isolation mechanism for keeping the firing capacitor (7) without voltage during the communication detection stage; A feedback module for detecting the connectivity of the bridge wire / firing resistor (5) and the short - circuit state of the firing capacitor (7) during the self - testing stage.

3. The electronic fuse device for firecracker opening medicine with inertial insurance according to claim 1, characterized in that, The unlocking condition of the inertial safety mechanism (4) is: The launch acceleration of the fireworks shell is greater than a preset threshold, such that the compression change amount ΔX of the first spring (10) satisfies ΔX≥A, where A is the minimum displacement of the steel ball for the second spring to be released from the compressed state and the inertial safety to change from the locked state to the unlocked state.

4. The electronic fuse device for the firecracker opening explosive with inertial insurance according to claim 1, wherein The discharge trigger conditions of the firing capacitor (7) include: Preset delay time T delay When it ends, the dedicated chip (3) outputs an instruction to close the firing switch (6); The inertial safety mechanism (4) is in the unlocked state, the key switch (12) is closed, forming a complete firing circuit.

5. The electronic fuse device for firework ignition charge with inertial insurance according to claim 4, characterized in that, The preset delay time T delay is calculated by the following formula: Where h is the explosion height, v is the initial velocity of the fireworks shell leaving the barrel, θ is the inclination angle of the launch tube, and g is the acceleration due to gravity.

6. The electronic fuse device for firework opening medicine with inertial insurance according to claim 1, characterized in that, The electronic fuse adapts to the parameter configurations of different models of fireworks shells, including: By adjusting the stiffness coefficient k of the first spring (10) and the radius r of the steel ball (9), matching different launch acceleration ranges; The dedicated chip (3) supports dynamically injecting the delay time parameter according to the model of the fireworks shell.

7. The electronic fuse device for unpacking fireworks medicine with inertial insurance according to claim 1, characterized in that The first electronic fuse interface (1) and the second electronic fuse interface (2) support the switching mode between low-voltage communication and high-voltage charging: In the low-voltage mode, the dedicated chip (3) receives the controller instruction and charges the communication capacitor (8). In the high-voltage mode, the firing capacitor (7) is quickly charged to the voltage required for detonation through the first electronic fuse interface (1) and the second electronic fuse interface (2).

8. The electronic fuse device for firework unpacking explosive with inertial insurance according to claim 1, characterized in that The electronic fuse further includes a safety verification mechanism: The controller sends an encrypted instruction to the dedicated chip (3), and unlocks the charging permission of the firing capacitor (7) after the verification passes. When a self-check abnormality or password verification fails, the dedicated chip (3) feeds back an error code and terminates the launch process.

9. The electronic fuse device for firework unpacking explosive with inertial insurance according to claim 1, characterized in that, The locked state of the inertial safety mechanism (4) is physically isolated through a mechanical structure: In the unlocked state, the second spring (11) is compressed and keeps the key switch (12) open. When unlocking, the second spring (11) releases its elastic force and pushes the key switch (12) to close.

10. The electronic fuse device for fireworks unpacking explosive with inertial insurance according to claim 1, characterized in that, The hardware implementation method of the electronic fuse includes: Executing the logic function of the dedicated chip (3) through a programmable logic controller or an embedded microcontroller; Adopting an intrinsically safe circuit design to ensure that the voltages of the communication capacitor (8) and the firing capacitor (7) meet the explosion-proof requirements.

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