A method and system for rapid response of a fire extinguishing device

Abstract

The application relates to the technical field of trigger control of fire extinguishing devices, and discloses a quick reaction method and system of a fire extinguishing device, which comprises the following steps: forming a closed input branch circuit by a trigger switch and a delay conduction structure; continuously accumulating electric energy or heat by the delay conduction structure; changing the delay conduction structure from a cut-off state to a conduction state; and igniting the fuse of the fire extinguishing device by the ignition energy released by the ignition loop once. Compared with the trigger mode of the fire extinguishing device in the prior art, the method can solve the technical problem that the fire extinguishing device is easily mis-ignited by vibration, collision, accidental touch or short-time closure, especially under the conditions of transportation, installation, carrying or complex field use, and cannot realize the collaborative control of short-time accidental touch filtering, continuous closure confirmation and one-time safe ignition. The safety and reliability of the trigger process of the fire extinguishing device are improved by physically accumulating the trigger state and directly connecting the ignition loop after the physical conduction condition is met.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing device triggering and control technology, and in particular to a rapid response method and system for fire extinguishing devices. Background Technology

[0002] Currently, fire extinguishing devices, especially portable or vehicle-mounted fire extinguishers, generally rely on electronic control units (ECUs) for ignition control. These units typically include a microprocessor, sensors, and corresponding control software, responsible for monitoring trigger signals, performing logical judgments, and outputting ignition commands. However, this approach has inherent limitations. For example, in complex real-world scenarios, such as fires caused by vehicle collisions or industrial equipment malfunctions, there is often strong electromagnetic interference, severe physical vibration, or impact. Under such harsh conditions, the stability of the software and the integrity of the hardware signals in existing ECUs are highly susceptible to damage, potentially leading to misjudgments (e.g., mistaking vibration for a trigger signal) or malfunctions (e.g., control signal errors due to interference). This can result in serious safety issues such as accidental discharge or failure to activate when required, failing to fully meet the core requirements of fire protection products for absolute reliability and rapid response under extreme conditions.

[0003] Furthermore, while some existing simple fire extinguishing devices are structurally simple, they lack effective mechanisms to prevent accidental triggering and safety locking functions after single use. For example, a simple mechanical switch may momentarily close upon impact, leading to accidental activation; or, if the device is not completely depleted of energy or its critical components are damaged after accidental activation, there is theoretically a risk of it being triggered again erroneously. This does not comply with the safety standard that fire protection products must be ensured to be non-reusable after single use. Therefore, there is an urgent need for a technical solution that can still achieve highly reliable ignition, effectively prevent accidental triggering, and automatically enter an irreversible failure state after activation without complex electronic control logic, in order to improve the overall safety and environmental adaptability of fire extinguishing devices. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to propose a rapid response method for fire extinguishing devices. This method aims to solve the technical problem that existing fire extinguishing devices are easily affected by vibration, collision, accidental activation, or short-term closure, leading to accidental ignition. This is especially true under conditions of transportation, installation, carrying, or use in complex environments, where it is impossible to achieve coordinated control of short-term accidental activation filtering, continuous closure confirmation, and one-time safe ignition.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a rapid response method for fire extinguishing devices.

[0006] The rapid response method for a fire extinguishing device includes: Step S10: After the trigger switch is closed, electrical energy or thermal energy is continuously accumulated through the corresponding delayed conduction structure; Step S20: When the accumulated state satisfies the physical conduction condition of the delay conduction structure itself, the ignition circuit is directly turned on; Step S30: Use the energy released after the circuit is turned on to ignite the fuse of the fire extinguishing device in one go to perform the fire extinguishing action; after the fuse is ignited, the ignition circuit enters an irreversible failure state, so that the device cannot be triggered again.

[0007] Preferably, the entire ignition process does not include sampling, comparison, logic operation or software control, and is executed automatically entirely by relying on the inherent physical characteristics of the delay conduction structure.

[0008] Preferably, the delay conduction structure is an active RC delay circuit or a timing chip; when the switch is momentarily closed, it automatically resets before the preset time is reached and no ignition signal is output; after the switch is continuously closed for the preset time, the power transistor is driven to conduct the ignition circuit.

[0009] Preferably, the delayed conduction structure is a passive RC charging circuit; the capacitor voltage rises naturally with the charging time, and after reaching the forward conduction voltage of the LED, the LED spontaneously conducts and directly connects the fuse.

[0010] Preferably, the delayed conduction structure is a large-capacity energy storage capacitor; after the capacitor is charged to the ignition energy threshold, it is completely discharged at once, directly igniting the fuse; after the discharge is completed, the electrical energy is naturally depleted, achieving physical irreversibility.

[0011] Preferably, the delayed conduction structure is a low-melting-point alloy fuse or a PTC thermistor heating structure; the heat generated by continuous power supply melts the fuse or breaks down the hot melt film, thereby conducting the ignition circuit; after conduction, the structure is permanently destroyed and cannot be triggered again.

[0012] Preferably, the delayed conduction structure is a combination of an energy storage capacitor and a bidirectional trigger diode (DIAC); when the capacitor voltage rises to the DIAC breakdown voltage, the thyristor is triggered to conduct, directly igniting the fuse.

[0013] Preferably, the momentary short-term closure caused by vibration, collision, or accidental contact cannot meet the accumulation conditions, and only continuous manual closure of the switch can form effective ignition.

[0014] Preferably, the irreversible failure is achieved through power depletion, fuse blowing, permanent circuit continuity, or structural damage, making the device unresettable and unrepeatable, thus meeting the one-time safe use requirements of fire protection products.

[0015] Preferably, the fuse is a bipolar conductive fire extinguishing fuse with no distinction between positive and negative polarities. It can be activated as soon as the circuit is connected, and has strong resistance to electromagnetic interference and vibration.

[0016] The beneficial effects of this invention are as follows: 1. This invention employs a purely hardware-based automatic execution mechanism entirely based on the physical characteristics of the delay-conduction structure itself, abandoning traditional software control logic and fundamentally eliminating the risk of misjudgment due to software vulnerabilities, program crashes, or electromagnetic interference. This method uses the continuous accumulation of energy or heat as the judgment criterion; ignition is only executed when the switch is manually and continuously closed to meet preset physical conditions (such as a capacitor charging to a threshold voltage or a fuse reaching its melting point). This effectively filters out instantaneous interference signals caused by vibration, collisions, etc., significantly improving the reliability and anti-interference capability of the fire extinguishing device in complex electromagnetic environments and harsh physical conditions.

[0017] 2. This invention designs the ignition circuit to automatically enter an irreversible failure state (such as power depletion, fuse blowing, permanent structural damage, etc.) after the fuse is ignited, ensuring that the fire extinguishing device permanently fails after performing a single fire extinguishing action and cannot be triggered or reset again. This design not only meets the safety regulations requiring fire protection products to be used only once, eliminating potential secondary risks caused by the uncertain residual state of the device, but also simplifies the system and improves the certainty of failure because its failure mechanism is entirely implemented through physical processes, requiring no additional control commands. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the first embodiment of a rapid response method for a fire extinguishing device according to the present invention. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: As Figure 1 The diagram shown is a flowchart of a first embodiment of a rapid response method for a fire extinguishing device according to the present invention, which presents a first embodiment of the rapid response method for a fire extinguishing device according to the present invention.

[0022] In the first embodiment, the rapid response method for a fire extinguishing device includes: Step S10: After the trigger switch is closed, electrical energy or thermal energy is continuously accumulated through the corresponding delayed conduction structure; It should be noted that the "delayed conduction structure" in this step is the core hardware unit for achieving software-free control in this invention. Its specific form can be an active RC delay circuit, a passive RC charging circuit, a large-capacity energy storage capacitor, a low-melting-point alloy fuse, a PTC thermistor heating structure, or a combination of an energy storage capacitor and a bidirectional trigger diode (DIAC), etc. Its functional essence is a "physical timer" or "energy integrator." "Trigger switch closure" is an external start signal, such as manually pressing a switch or the closure of relay contacts driven by a sensor. "Continuous accumulation" refers to the process after the switch is closed, where the power supply begins to inject electrical energy into the structure (e.g., charging the capacitor) or causes it to generate and accumulate heat energy (e.g., current flowing through the fuse or heat generated by the PTC resistor). This accumulation process is a continuous, analog change, such as a linear increase in capacitor voltage or a slow rise in fuse temperature, providing the state basis for the "physical conduction" in subsequent steps.

[0023] Understandably, this step plays a key technical role in the "signal filtering and condition preset" of this invention. It doesn't simply transmit a switching signal, but rather transforms an instantaneous switching event into a physical state change process that requires time to reach a threshold. This process naturally filters out invalid or disruptive triggers with excessively short durations (such as switch bounce caused by instantaneous collisions). Only long-duration closing signals representing genuine, continuous human operation can drive the accumulation process towards meeting the conduction conditions, thus establishing the first physical threshold for reliable ignition.

[0024] It should be understood that, compared to traditional technologies where the switching signal is directly fed into the microprocessor for digital identification (which may be misread due to interference), this step identifies valid triggers by simulating the time-domain accumulation of physical quantities. The judgment is based on physical laws (such as RC time constant and material melting point), rather than easily interfered with digital logic or software algorithms. This avoids signal distortion, sampling errors, or logical confusion that may occur in digital systems under strong interference, making trigger judgment more robust and inherently safe.

[0025] For example, suppose the delayed conduction structure is an RC charging circuit with a time constant of 2 seconds. When a minor collision causes the switch to close momentarily for 0.1 seconds, the capacitor receives only a very small amount of charge, and the voltage is far from reaching the conduction threshold of the subsequent LED or comparator. The switch then opens, and the capacitor quickly discharges and resets through the parallel resistor. The entire process does not generate any ignition output. Only when the driver discovers a fire and continuously presses the extinguishing switch for more than 2 seconds will the capacitor voltage steadily rise to a value sufficient to trigger the subsequent circuitry. This effectively distinguishes between "interference-induced momentary closure" and "human-assisted confirmation of continuous operation."

[0026] Step S20: When the accumulated state satisfies the physical conduction condition of the delay conduction structure itself, the ignition circuit is directly turned on; It should be noted that this step is the "physical threshold judgment and energy release triggering" stage. When the accumulated state in step S10 (such as capacitor voltage and fuse temperature) reaches the inherent "physical conduction condition" of the delay conduction structure itself, the structure will spontaneously and irreversibly change its physical state, thereby "directly conducting the ignition circuit". The "physical conduction condition" here is the intrinsic property of the structure, such as: the forward conduction voltage of the LED in the passive RC circuit, the breakdown voltage of the DIAC, the melting temperature of the low melting point alloy, or the temperature at which the PTC thermistor carbonizes the hot melt film. "Direct conduction" means that without any operation and output drive of any logic chip, the physical effect generated by the sudden change in the state of the structure (such as semiconductor device breakdown, fuse melting to form a path) is used to connect an ignition energy circuit containing a fuse.

[0027] Understandably, this step achieves a seamless and automatic connection from "condition judgment" to "action execution". It uses the nonlinear characteristics of physical devices (such as breakdown and melting) as a switch. Once the accumulated state crosses the critical point, the conduction action occurs immediately with extremely short response delay. Moreover, this process is completed entirely autonomously by the hardware without waiting for any control cycle scan or interrupt response, thus ensuring the speed and determinism of the ignition response.

[0028] It should be understood that, compared to traditional technologies where a microprocessor needs to execute a program and operate I / O ports to drive an external power transistor or relay to connect the ignition circuit after detecting a signal that meets the conditions, this step eliminates all digital processing steps and software scheduling that may introduce delays. Its conduction action is a natural result of the physical conditions being met, and the response speed depends only on the switching speed of the physical devices (typically in the microsecond or millisecond range), which is faster than software control methods (which may reach tens of milliseconds). Furthermore, it completely avoids the risk of software deadlocks or task blocking causing the ignition command to fail to output.

[0029] For example, in an embodiment employing a DIAC and a SCR, the voltage of the energy storage capacitor gradually increases with charging time. When the voltage reaches the breakdown voltage of the DIAC (e.g., 32V), the DIAC breaks down instantaneously, injecting a pulse current into the control electrode of the SCR, triggering the SCR to fully conduct. This "voltage reaching 32V" is a purely physical condition; the breakdown of the DIAC is a physical phenomenon. The entire process occurs automatically, without the involvement of program code such as "if voltage > 32V then output high level." Therefore, in environments with strong electromagnetic noise, misjudgments will not occur due to program memory bit flipping.

[0030] Step S30: Use the energy released after the circuit is turned on to ignite the fuse of the fire extinguishing device in one go to perform the fire extinguishing action; after the fuse is ignited, the ignition circuit enters an irreversible failure state, so that the device cannot be triggered again.

[0031] It should be noted that this step is the "fire extinguishing and safety interlocking" stage. "Energy released after conduction" refers to the energy stored or transmitted in the ignition circuit that is activated in step S20, such as electrical energy stored in a large capacitor or a large current from the power source passing through the already activated circuit. This energy is applied "once" to the "fuze of the fire extinguishing device," which is typically an electrothermal or electroexplosive element that ignites rapidly under sufficient energy stimulation, thereby igniting or detonating the extinguishing agent release device (such as a gas generator or a rupture diaphragm), ultimately executing the fire extinguishing action of spraying the extinguishing agent. "After the fuse ignites, the ignition circuit enters an irreversible failure state," describes the safety mechanism built into this invention. This failure can be achieved through various physical means, such as: complete discharge of the energy storage capacitor preventing it from accumulating sufficient energy again; fuse melting or thermal fusion film breakdown causing a permanent physical disconnection or short circuit in the circuit; or a large current passing through causing a critical component (such as a one-time fuse or a specifically designed weak connection point) to burn out.

[0032] Understandably, this step not only triggers the core fire extinguishing function but also integrates the crucial "single-use" safety characteristic of fire protection products. It links the execution of the fire extinguishing action with the physical disposal of the device itself, ensuring that each successful fire extinguishing action inevitably leads to the permanent failure of the device. This design physically prevents the safety hazards that might arise from repairing or reusing the device, meeting and exceeding the requirements of relevant safety standards.

[0033] It should be understood that, unlike some traditional fire extinguishing devices that may only deplete the extinguishing agent after activation, while their electrical control components may remain intact and theoretically risk being incorrectly reset or retried (although there may be software locks, the software can be bypassed or reset), the "irreversible failure" provided by this step is a physical, hardware-level failure. This type of failure does not rely on any state memory or software flags; it is an inevitable physical result after the action occurs. Therefore, its reliability in preventing repeated triggering is absolute and easily verified through simple physical checks (such as checking if the fuse has blown).

[0034] It should be noted that, in addition to the above-mentioned triggering method based on the accumulation of electrical energy or heat using a delayed conduction structure, the present invention can also incorporate a piezoelectric ceramic excitation structure. The piezoelectric ceramic excitation structure includes a force-bearing component, an impact component, a piezoelectric ceramic sheet, a high-voltage output terminal, a discharge needle assembly, and an ignition zone adjacent to the extinguishing agent. When the force-bearing component is subjected to manual pressing, impact, or shock, it causes the impact component to act on the piezoelectric ceramic sheet, resulting in instantaneous compressive deformation of the piezoelectric ceramic sheet. Based on the positive piezoelectric effect, an instantaneous high-voltage output is formed between the two poles of the piezoelectric ceramic sheet.

[0035] The high-voltage output terminal is connected to the discharge needle assembly, which includes a first discharge needle and a second discharge needle arranged at a relative interval. When the instantaneous high voltage output by the piezoelectric ceramic plate reaches the air breakdown condition of the discharge needle gap, an electric arc spark is formed between the first and second discharge needles. The electric arc spark acts on the ignition zone of the extinguishing agent, smoke-generating propellant, or gas-generating agent, directly triggering the extinguishing agent, smoke-generating propellant, or gas-generating agent, thereby generating an extinguishing medium, smoke medium, or driving gas, and completing the extinguishing action.

[0036] Compared to ignition methods using batteries, boost modules, or software control, the piezoelectric ceramic excitation structure does not require an external power supply battery, boost circuit, or program control logic. Instead, it directly converts manually applied mechanical energy into instantaneous high-voltage electrical energy. Therefore, it maintains high triggering reliability even in environments with battery failure, long-term storage, electromagnetic interference, or humid transportation.

[0037] To prevent abnormal ignition caused by transportation, vibration, collision, or slight accidental contact, the piezoelectric ceramic excitation structure can also be equipped with mechanical safety devices, stroke limit devices, or one-time locking devices. Only when the safety device is released and the force-bearing device reaches the predetermined pressing stroke or impact strength will the impact device act on the piezoelectric ceramic sheet and generate an effective high voltage output; short-term impacts without releasing the safety device or without reaching the predetermined stroke are insufficient to form an effective electric arc spark in the discharge needle gap.

[0038] After the piezoelectric ceramic excitation structure completes one triggering, at least one of the force-bearing component, impact component, safety component, discharge needle assembly, or ignition channel enters an irreversible failure state. The irreversible failure state includes the safety component disengaging, the triggering component locking, the discharge needle tip melting, the ignition channel being destroyed, or the extinguishing agent being consumed in one go, to prevent the fire extinguishing device from being repeatedly triggered.

[0039] Example 2: Furthermore, the rapid response system for fire extinguishing devices provided by the present invention employs a rapid response method for fire extinguishing devices as described in the above embodiments, thereby solving the technical problem of rapid response for fire extinguishing devices. The beneficial effects of the rapid response system for fire extinguishing devices provided by the present invention are the same as those of the rapid response method for fire extinguishing devices provided in the above embodiments, and other technical features of the rapid response system for fire extinguishing devices are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0040] Example 3: This invention provides a rapid response device for fire extinguishing equipment. The rapid response device includes: at least one processor; and a memory communicatively connected to the at least one processor. The memory stores instructions executable by the at least one processor, which, when executed, enable the at least one processor to perform a rapid response method for fire extinguishing equipment as described in Example 1. The rapid response device for fire extinguishing equipment in this embodiment may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), and vehicle terminals (e.g., vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. This rapid response device for fire extinguishing equipment is merely an example and should not limit the functionality or scope of the embodiments of this invention. A rapid response device for fire extinguishing equipment may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory or a program loaded from a storage device into a random access memory. The random access memory also stores various programs and data required for the operation of a fire extinguishing rapid response device. The processing unit, read-only memory, and random access memory are interconnected via a bus. The I / O interface is also connected to the bus. Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. The communication device allows a fire extinguishing rapid response device to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows a fire extinguishing rapid response device with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems can be implemented alternatively.

[0041] Example 4: This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the rapid response method for a fire extinguishing device as described above. The computer program product provided by this invention can solve the technical problem of rapid response in a fire extinguishing device. Compared with the prior art, the beneficial effects of the computer program product provided by this invention are the same as the beneficial effects of the rapid response method for a fire extinguishing device provided in the above embodiments, and will not be repeated here.

[0042] In particular, according to the embodiments disclosed in this invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from a read-only memory. When the computer program is executed by a processing device, it performs the functions defined in the methods of the embodiments disclosed in this invention.

[0043] It should be understood that the various parts disclosed in this invention can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0044] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A rapid response method for a fire extinguishing device, characterized in that, The methods include: Step S10: After the trigger switch is closed, electrical energy or thermal energy is continuously accumulated through the corresponding delayed conduction structure; Step S20: When the accumulated state satisfies the physical conduction condition of the delay conduction structure itself, the ignition circuit is directly turned on; Step S30: Use the energy released after the circuit is turned on to ignite the fuse of the fire extinguishing device in one go to perform the fire extinguishing action; after the fuse is ignited, the ignition circuit enters an irreversible failure state, so that the device cannot be triggered again.

2. The rapid response method for a fire extinguishing device as described in claim 1, characterized in that, The entire ignition process does not involve sampling, comparison, logic operations, or software control; it is executed automatically entirely based on the inherent physical characteristics of the time-delay conduction structure.

3. The rapid response method for a fire extinguishing device as described in claim 1, characterized in that, The delay conduction structure is an active RC delay circuit or a timing chip; when the switch is closed instantaneously, it will automatically reset before the preset time is reached and no ignition signal will be output; after the switch is continuously closed for the preset time, the power transistor will be driven to conduct the ignition circuit.

4. The rapid response method for a fire extinguishing device as described in claim 1, characterized in that, The delayed conduction structure is a passive RC charging circuit; the capacitor voltage rises naturally with the charging time, and after reaching the LED forward conduction voltage, the LED spontaneously conducts and directly connects the fuse.

5. The rapid response method for a fire extinguishing device as described in claim 1, characterized in that, The delayed conduction structure is a large-capacity energy storage capacitor; after the capacitor is charged to the ignition energy threshold, it is completely discharged at once, directly igniting the fuse; after the discharge is completed, the electrical energy is naturally depleted, achieving physical irreversibility.

6. The rapid response method for a fire extinguishing device as described in claim 5, characterized in that, The delayed conduction structure is a low-melting-point alloy fuse or a PTC thermistor heating structure; the heat generated by continuous power supply melts the fuse or breaks down the hot melt film, thereby conducting the ignition circuit; after conduction, the structure is permanently destroyed and cannot be triggered again.

7. The rapid response method for a fire extinguishing device as described in claim 1, characterized in that, The delayed conduction structure is a combination of an energy storage capacitor and a bidirectional trigger diode (DIAC); when the capacitor voltage rises to the DIAC breakdown voltage, the thyristor is triggered to conduct, directly igniting the fuse.

8. A rapid response method for a fire extinguishing device as described in claim 1, characterized in that, The delayed conduction structure is a piezoelectric ceramic excitation module. After the trigger switch is closed, the mechanical energy of the piezoelectric ceramic is continuously accumulated by pressing and applying force. When the accumulated mechanical energy reaches the discharge threshold of the piezoelectric ceramic, the piezoelectric ceramic releases high-voltage electrical energy instantaneously, breaking down the air to generate an electric spark, which connects the ignition circuit and ignites the fuse. After ignition, the piezoelectric ceramic undergoes irreversible structural deformation due to continuous force, or the discharge circuit forms a permanent short circuit, resulting in irreversible failure of the ignition circuit.

9. A rapid response method for a fire extinguishing device as described in claim 8, characterized in that, The piezoelectric ceramic excitation module includes a piezoelectric ceramic wafer, a striker trigger structure, and a discharge needle tip. When the trigger switch is pressed continuously, the striker trigger structure continuously applies pressure to the piezoelectric ceramic wafer to accumulate mechanical energy. When the pressure reaches a threshold, the striker strikes the piezoelectric ceramic wafer, causing it to generate high-voltage electrical energy instantaneously. The discharge needle tip then releases an electric spark to ignite the fuse.

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