Intelligent safety distribution box with multi-suppression fire extinguishing structure

Abstract

The invention belongs to the technical field of power distribution boxes, and particularly relates to an intelligent safety power distribution box with a multi-suppression fire extinguishing structure, which comprises a cabinet body, a cabinet door, a mounting rail, a storage box, a blocking plate, a fixed connecting seat, a spraying trigger piece and a fire extinguishing agent, when the substance in the injection trigger part is decomposed, heat is absorbed and CO2 gas is released, so that the temperature of a flame area is reduced, meanwhile, an inhibition effect is generated on combustion, continuous combustion of an electrical element is prevented to a certain extent, the strength of the combusted injection trigger part is reduced, and the service life of the electrical element is prolonged. And when the strength of the spraying triggering piece is reduced to be difficult to limit the force generated by the blocking plate blocking the pressure in the storage cavity, the blocking plate is pushed away rapidly, then automatic opening of the blocking plate is achieved, internal high-pressure gas is rapidly exhausted to the outer side, the fire extinguishing agent is driven to be sprayed out from the spraying opening, and the fire extinguishing effect is achieved. And the electric elements are covered to isolate oxygen in the air while extinguishing fire, so that automatic fire extinguishing is realized when the distribution box is in a fire disaster.

Description

Technical Field

[0001] This invention belongs to the field of distribution box technology, specifically an intelligent safety distribution box with multiple fire suppression and extinguishing structures. Background Technology

[0002] Distribution boxes are cabinets made of thin steel plates, used to protect electrical components and ensure their proper functioning. They are widely used in industries such as chemical engineering, environmental protection, power systems, metallurgy, industry, nuclear power, fire safety monitoring, and transportation. However, traditional distribution boxes are prone to fires during use due to issues such as overheating of internal electrical components, aging wiring, short circuits, or overloads. Once a fire spreads, it can not only damage the electrical equipment inside the box and cause power outages, but also potentially lead to larger-scale safety accidents.

[0003] Because distribution boxes are normally closed, it is difficult to detect fires inside in a timely manner. Furthermore, the small space allows fires to spread rapidly and makes them more difficult to extinguish. Therefore, distribution boxes are usually equipped with fire extinguishing devices to extinguish fires promptly and prevent their spread. Existing fire extinguishing devices typically use temperature or smoke-activated control modes. Commonly used smoke or heat detectors are prone to false alarms or missed alarms due to factors such as airflow and dust, which increases the risk of fire spreading. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes an intelligent safety distribution box with multiple fire suppression and extinguishing structures. This invention primarily addresses the problem that the activation mode of fire extinguishing devices in existing distribution boxes is easily affected by factors such as airflow and dust, leading to missed or false alarms, resulting in untimely fire suppression and the spread of fire.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This invention provides an intelligent safety distribution box with multiple fire suppression and extinguishing structures, including a cabinet, a cabinet door, mounting rails, storage boxes, sealing plates, fixed connecting seats, a spray trigger, and a fire extinguishing agent; the cabinet door is provided on the front of the cabinet; the cabinet door is fixedly connected to the cabinet by hinges; the mounting rails are spaced apart on the inner wall of the back of the cabinet; the mounting rails are fixedly connected to the inner wall of the back of the cabinet; electrical components are fixedly connected to the cabinet through the mounting rails; storage boxes are provided on both sides of the mounting rails; the storage boxes are fixedly connected to the back of the cabinet through the fixed connecting seats. On the inner wall; nozzles are provided on a set of opposite side walls of the storage box; the nozzles face the electrical components; a sealing plate is hinged to each of the opposite sides of the nozzle; the nozzles are sealed by the cooperation of the two sealing plates; the sealing plates are sealed to each other and to the storage box; the storage box is divided into a first storage chamber and a second storage chamber by a partition; both the first and second storage chambers are filled with fire extinguishing agent; the two nozzles are respectively connected to the first and second storage chambers; the two sealing plates are connected by a spray trigger; the spray trigger is made of a thermally decomposable heat-sensitive insulating material.

[0006] During operation, poor contact in the distribution box can lead to excessively high local temperatures, causing the internal materials of the distribution box to ignite and potentially cause a fire. If a fire is not extinguished promptly, it can spread and cause significant damage. Therefore, automatic fire suppression systems are installed in distribution boxes to extinguish fires in a timely manner. Existing fire suppression systems commonly use smoke or heat detectors for control; however, these are susceptible to false alarms or missed alarms due to airflow, dust, and other factors, increasing the risk of fire spread. Furthermore, the electrical connections inside the distribution box are generally located in electrical... Poor contact at component terminals typically occurs at the joints, thus the ignition point is located at the electrical components. When a fire occurs inside the distribution box, the flames first come into contact with the spray triggers on both sides of the electrical components. Because these triggers are made of thermally decomposable heat-sensitive insulating materials, the flames ignite and decompose the heat-sensitive insulating materials. Since these materials contain substances such as KHNO3 and K2CO3, they undergo decomposition reactions at high temperatures. The chemical equations for decomposition are 2KHCO3 = K2CO3 + H2O↑ + CO2↑ and K2CO3 = K2O + CO2↑. Because decomposition requires a large amount of... The heat reduces the temperature of the flame area, and the storage box also provides some protection against the flame, thus reducing the chance of igniting other electrical components and wires. During the decomposition of substances in the heat-sensitive insulating material, CO2 gas is produced. CO2 gas can isolate oxygen, thus inhibiting combustion and preventing the continued combustion of electrical components to some extent. As the ejector trigger burns, it is consumed, reducing its strength. Because the storage chamber (collectively referred to as storage chamber one and storage chamber two) has a certain pressure, the strength of the ejector trigger decreases. When the pressure decreases to a level where the sealing plate is difficult to restrain, the pressure inside the storage chamber quickly pushes the sealing plate open, thus achieving automatic opening of the sealing plate. This allows the high-pressure gas inside to be rapidly expelled to the outside, which in turn drives the extinguishing agent out of the nozzle. The extinguishing agent then covers the surface of the electrical components, further isolating oxygen in the air, thereby achieving automatic fire extinguishing when a fire occurs in the distribution box, while also improving the reliability of fire extinguishing activation. By dividing the storage box into storage chamber 1 and storage chamber 2, targeted fire extinguishing can be carried out based on the location of the electrical components in different locations, thus improving the timeliness of fire extinguishing.

[0007] Preferably, the extinguishing agent is dry powder; both the first storage chamber and the second storage chamber are equipped with a stirring and loosening mechanism; the stirring and loosening mechanism includes a coil spring, a rotating shaft, a stop bar, a limiting bar, and a loosening component; the loosening component is located in the first and second storage chambers; the loosening component is used to loosen the clumped dry powder; the loosening component is connected to the rotating shaft; one end of the rotating shaft is rotatably connected to the side wall of the storage box; the other end of the rotating shaft is rotatably connected to the base plate of the fixed connecting seat; the coil spring is sleeved on the rotating shaft; one end of the coil spring is fixedly connected to the rotating shaft; the other end of the coil spring is fixedly connected to the fixed connecting seat; the stop bar is fixedly connected to the rotating shaft between the storage box and the coil spring; the middle part of the limiting bar is rotatably connected to the sealing plate near the stop bar; the spray trigger is provided with a limiting boss; one end of the limiting bar contacts the limiting boss; the other end of the limiting bar contacts the end of the stop bar.

[0008] During operation, dry powder is typically used as an extinguishing agent in the event of an electrical fire. Because the storage tank remains stationary within the cabinet for extended periods, the dry powder tends to settle at the bottom of the storage chamber and may even clump. Therefore, when using dry powder as an extinguishing agent, it is usually necessary to shake it to loosen the clumps. Since the storage tank remains stationary within the cabinet, in the event of a fire, the flame will contact the spray trigger and ignite it. Due to the small size of the limiting protrusion, the spray trigger will burn and decompose more quickly than the fire extinguishing agent. This causes the constraint of the limiting boss on the limiting rod to disappear, thereby breaking the balance of the limiting rod. Under the action of the coil spring, the rotating shaft rotates, which in turn drives the loosening component to rotate. The loosening component then stirs the dry powder in the storage cavity, loosening the clumped dry powder. This ensures that the sprayed dry powder is loosened by the loosening component, thus ensuring that the dry powder is evenly dispersed after being sprayed from the nozzle. This method has a simple structure, and the loosening component will not malfunction, thereby improving the reliability of eliminating clumps before spraying dry powder.

[0009] Preferably, the loosening component is made by evenly spaced loosening rods on a ring-shaped connecting rope; the loosening rods are fixedly connected to the connecting rope; two sets of transmission wheels are provided inside the ring-shaped loosening component; the outer surface of the transmission wheels is provided with grooves that match the loosening rods; the two sets of transmission wheels cooperate to drive the loosening component to move; the two sets of transmission wheels are respectively fixedly connected to two stirring shafts; the stirring shafts are rotatably connected to the side wall of the storage tank; one end of the stirring shaft located at the fixed connecting seat passes through the side wall of the storage tank; a driven pulley is provided on the stirring shaft; the driven pulley is connected to the stirring shaft through a one-way bearing; a driving pulley is provided on the rotating shaft; the driving pulley is fixedly connected to the rotating shaft; the driving pulley and the driven pulley are driven by a synchronous belt; loosening rods are provided with loosening teeth.

[0010] During operation, because electrical components are installed along mounting rails, the storage tank must be longer than the total length of the electrical components on the rails to ensure that each component is covered in the event of a fire. This is crucial to ensure that the dry powder sprayed from the nozzles covers all electrical components on the rails. If some powder clumps, it will affect the uniform diffusion of the dry powder after spraying, leaving some electrical components uncovered and reducing the fire extinguishing effect. Therefore, when the flames ignite the limiting boss in a fire, the boss burns and decomposes, gradually shrinking. This causes the limiting boss to lose its constraint on the limiting rod, disrupting the rod's balance. This, in turn, causes the rotating shaft to rotate under the action of the coil spring, which in turn drives the driving pulley, which in turn drives the driven pulley via the synchronous belt, which in turn drives the stirring shaft, which in turn drives the transmission wheel. Because the slot on the drive wheel engages with the loosening rod, the loosening rod on the connecting rope moves. Since the stirring shaft is located at both ends of the storage chamber and the loosening rod is equipped with loosening teeth, the dry powder in the entire storage chamber is loosened, ensuring that the dry powder in the storage chamber is free of caking. This ensures that the sprayed dry powder can be evenly diffused and cover the electrical components for fire extinguishing. Since a fire may occur at any electrical component on the mounting rail, multiple coil springs can be installed to drive the movement of the loosening component. The drive pulley, driven pulley, and synchronous belt are used for transmission. By installing a one-way bearing between the driven pulley and the stirring shaft, it can be ensured that any limiting boss can independently drive the loosening component to loosen the caking dry powder after it loses its constraint on the limiting rod, thereby improving the reliability of removing caking before dry powder spraying.

[0011] Preferably, the partition has two independent cavities; each independent cavity is filled with high-pressure CO2 gas; the pressure inside each independent cavity is greater than the pressure inside the first storage cavity and the second storage cavity; vents are provided on the side walls of the two independent cavities; the vents are located in the first and second storage cavities respectively; an opening plate is provided at each vent; the opening plate is slidably connected to the side wall of the partition; the opening plate is used to block the vents; the opening plate has an vent hole; the opening plate has an opening protrusion; and one of the loosening rods on the loosening member has an opening boss.

[0012] During operation, the storage chamber is sealed by sealing plates, making the internal pressure greater than the external pressure. The two sealing plates are fixed together by a spray trigger. To ensure rapid powder ejection after ignition, the spray trigger's strength cannot be too high, thus limiting the pressure within the storage chamber and consequently restricting the powder's spray distance and diffusion speed. Therefore, two independent cavities are created within the partition, filled with high-pressure CO2 gas, making the pressure in the independent cavities greater than that in the storage chamber. When the coil spring moves the loosening component to loosen the dry powder, the opening boss on the loosening rod contacts and pushes the opening protrusion, thereby moving the opening plate and connecting the vent to the outlet. High-pressure CO2 gas enters the storage chamber, increasing the pressure within. This causes the gas to exert a force on the sealing plate that quickly exceeds the restraining force of the spray trigger on the sealing plate, rapidly pushing it away. This shortens the time required for dry powder to be sprayed for extinguishing the fire, increasing the extinguishing speed. The increased pressure in the storage chamber also causes the dry powder to be rapidly ejected from the nozzle, increasing its ejection speed and distance, thus expanding the extinguishing range. Furthermore, the increased pressure in the storage chamber increases the convection velocity of the gas within the cabinet during ejection, further increasing the diffusion rate of the dry powder. This allows the dry powder to quickly spread to the fire-affected area and cover unaffected areas to prevent the fire from spreading.

[0013] Preferably, the sealing plate near the fixed connecting seat is a split structure; the sealing plate includes an inner sealing plate and an outer sealing plate; both the inner sealing plate and the outer sealing plate are hinged to the storage box; the outer sealing plate is pressed onto the inner sealing plate; a seal is formed between the outer sealing plate and the inner sealing plate; a limiting protrusion is provided at the hinge point between the storage box and the inner sealing plate.

[0014] During operation, the sealing plate near the fixed connection seat is directly below the electrical components. When opened, the dry powder sprayed out will impact the electrical components, hindering the diffusion of the dry powder. Therefore, by making the sealing plate near the fixed connection seat a split structure, the inner and outer sealing plates rotate simultaneously when the plate bursts open. A limiting protrusion is set at the hinge between the storage box and the inner sealing plate. When the inner sealing plate rotates to a certain angle, it stops rotating, while the outer sealing plate continues to rotate to its maximum angle. As a result, part of the dry powder sprayed along with the CO2 gas changes direction and moves towards the cabinet door due to the obstruction of the inner sealing plate. Since the space on the cabinet door side is larger, it facilitates the diffusion of the dry powder, thereby increasing the coverage of dry powder on other electrical components and helping to prevent the spread of fire. The other part covers the wires on the back of the cabinet through the inner sealing plate, extinguishing the fire while preventing its spread.

[0015] Preferably, a metal heat-conducting component is embedded in the injection trigger; the metal heat-conducting component is made by bending a perforated sheet.

[0016] During operation, the substances within the spray trigger decompose by absorbing heat. Therefore, the decomposition of the spray trigger proceeds gradually from the outside in, resulting in a gradual decrease in its strength. This increases the time it takes for the spray trigger to break, thereby increasing the risk of fire spread. To address this, a pre-embedded metal heat-conducting component is used. Upon contact with the flame, the heat-conducting component transfers heat to the interior of the spray trigger, causing internal decomposition and accelerating its breakage, thus reducing the risk of fire spread. Because the metal heat-conducting component is made of bent perforated sheet metal, it prevents the spray trigger from being completely isolated, thus ensuring its strength before damage.

[0017] Preferably, the cabinet sidewall is provided with heat dissipation holes; a baffle plate is provided at the heat dissipation holes; the baffle plate is hinged to the sidewall of the heat dissipation holes, and a torsion spring is provided between the baffle plate and the sidewall of the heat dissipation holes; one end of the torsion spring is fixedly connected to the baffle plate; the other end of the torsion spring is fixedly connected to the sidewall of the heat dissipation holes; a support boss is provided on one side of the baffle plate inside the cabinet; an impact trigger is provided on the back of the cabinet; the impact trigger is slidably connected to the sidewall of the storage box via a sliding rod; the sliding rod cooperates with the support boss; and an impact boss is provided on the impact trigger.

[0018] During operation, ventilation holes are usually installed on the side walls of the cabinet to cool the interior. In the event of a fire, if these ventilation holes are not sealed in time, oxygen from outside the cabinet will enter through them, increasing the difficulty of extinguishing the fire. Therefore, when a fire occurs, the dry powder is sprayed out during the triggering process. Under the impact force, the sealing plate rotates around the junction point, which in turn hits the boss, causing the impact trigger to move. This, in turn, moves the sliding rod, causing it to disengage from the support boss. Under the torsion force of the torsion spring, the baffle plate rotates, thus sealing the ventilation holes in time, isolating external oxygen, preventing oxygen from entering the cabinet, and improving the fire extinguishing effect. If the internal pressure is higher than the external pressure during a fire, an airflow trend "from inside to outside" will be formed. According to the principles of fluid mechanics, gas in high-pressure areas will diffuse to low-pressure areas. This means that internal smoke or extinguishing agent gas will escape outward through the heat dissipation holes, while external oxygen is difficult to flow in against the pressure difference. Therefore, even if the baffle is not completely closed by the torsion spring due to internal pressure, there is still an "airlock effect", that is, the internal outflow forms a barrier to prevent oxygen backflow, thereby isolating oxygen and still improving the fire extinguishing effect.

[0019] Preferably, the limiting boss has a hollow structure.

[0020] During operation, by setting the limiting boss as a cavity structure, the time required for the limiting boss to disintegrate is shortened. This ensures that when the limiting boss loses its ability to constrain the limiting rod, the binding force of the spray trigger on the sealing plate is greater than the pressure inside the storage cavity, thus ensuring that the clumped dry powder is loosened before it is sprayed out.

[0021] Preferably, the length of the loosening teeth located inside the connecting rope of the annular structure exceeds the thickness of the dry powder; the loosening teeth are made of rubber material.

[0022] During operation, because the thickness of the dry powder in the storage chamber is greater than the diameter of the loosening rod, if the loosening teeth on the loosening rod do not exceed the thickness of the dry powder, the loosening teeth cannot disperse all the clumped dry powder. Therefore, by extending the length of the loosening teeth inside the connecting rope of the annular structure beyond the thickness of the dry powder, it is ensured that all the clumped dry powder is loosened. When the thickness of the dry powder exceeds the stirring shaft, the loosening teeth will contact the stirring shaft during the movement, and even the loosening teeth will contact each other. Therefore, the loosening teeth are made of rubber material, which ensures the normal operation of the loosening component and avoids affecting the loosening of the clumped dry powder.

[0023] The beneficial effects of this invention are as follows: 1. In this invention, when a fire occurs inside the distribution box, the flame first contacts the spray triggers on both sides of the electrical components. Because the spray triggers are made of thermally decomposable thermosensitive insulating material, the flame will ignite and decompose the thermosensitive insulating material. Since the thermosensitive material contains substances such as KHNO3 and K2CO3, it will undergo a decomposition reaction at high temperatures. The chemical equations for the decomposition are 2KHCO3=K2CO3+H2O↑+CO2↑ and K2CO3=K2O+CO2↑. Because a large amount of heat is consumed during decomposition, the temperature of the flame area is reduced. Simultaneously, the storage box provides some protection against the flame, thus reducing the probability of igniting other electrical components and wires. During the decomposition of substances in the thermosensitive insulating material, CO2 gas is produced. CO2 gas can isolate oxygen, thus inhibiting combustion and preventing the fire from spreading to a certain extent. The gas element continues to burn; as the injection trigger burns, it is consumed, reducing its strength. Because the storage chamber (collectively referred to as Storage Chamber 1 and Storage Chamber 2) has a certain pressure, when the strength of the injection trigger decreases to the point where it can no longer restrain the sealing plate, the pressure within the storage chamber quickly pushes the sealing plate open, automatically opening it. This allows the high-pressure gas inside to be rapidly expelled outwards, carrying the extinguishing agent out of the nozzle. The extinguishing agent then covers the surface of the electrical components, further isolating oxygen in the air, thus enabling automatic fire extinguishing when a fire occurs in the distribution box, while also improving the reliability of fire extinguishing activation. By dividing the storage box into Storage Chamber 1 and Storage Chamber 2, targeted fire extinguishing can be carried out based on the location of the electrical components in different locations, improving the timeliness of fire extinguishing.

[0024] 2. In the event of a fire, the flame contacts and ignites the spray trigger. Due to the small size of the limiting boss, the spray trigger will burn and decompose first, thus eliminating the constraint of the limiting boss on the limiting rod and breaking the balance of the limiting rod. This causes the rotating shaft to rotate under the action of the coil spring, which in turn drives the loosening component to rotate. The loosening component then agitates the dry powder in the storage cavity, loosening the clumped dry powder. This ensures that all sprayed dry powder has been loosened by the loosening component, guaranteeing that the dry powder is evenly dispersed after being sprayed from the nozzle. This method has a simple structure, and the loosening component will not malfunction, thus improving the reliability of eliminating clumps before spraying dry powder.

[0025] 3. In this invention, when a fire occurs, the flame ignites the limiting boss, causing it to burn and decompose, gradually shrinking. This leads to the loss of constraint on the limiting rod, disrupting its balance. Under the action of the coil spring, the rotating shaft rotates, which in turn drives the driving pulley, which in turn drives the driven pulley via the synchronous belt. This, in turn, drives the stirring shaft, which in turn drives the transmission wheel. Because the groove on the transmission wheel engages with the loosening rod, the loosening rod on the connecting rope moves. Since the stirring shaft is located at both ends of the storage cavity, and the loosening rod is equipped with loosening teeth, the dry matter within the entire storage cavity is effectively dispersed. The powder is loosened to ensure that the dry powder in the storage chamber is free of caking, thus ensuring that the sprayed dry powder can be evenly diffused and cover the electrical components for fire extinguishing. Since a fire may occur at any electrical component on the mounting rail, multiple coil springs can be installed to drive the movement of the loosening component. The transmission is achieved through the cooperation of the driving pulley, driven pulley, and synchronous belt. By installing a one-way bearing between the driven pulley and the stirring shaft, it can be ensured that the loosening component can be driven independently to loosen the caking dry powder even if any limiting boss loses its constraint on the limiting rod, thereby improving the reliability of eliminating caking before dry powder spraying.

[0026] 4. In this invention, two independent cavities are provided within the partition, and high-pressure CO2 gas is filled into each independent cavity, making the pressure in the independent cavity greater than the pressure in the storage cavity. When the coil spring drives the loosening component to loosen the dry powder, the opening boss on the loosening rod contacts and pushes the opening protrusion, thereby moving the opening plate. This connects the vent hole with the outlet, allowing the high-pressure CO2 gas in the independent cavity to enter the storage cavity, increasing the pressure within the storage cavity. Consequently, the force of the gas in the storage cavity on the sealing plate quickly exceeds the force of the injection trigger on the sealing plate. The binding force of the plate quickly pushes it away from the sealing plate, thus shortening the time required for dry powder to be sprayed out for fire extinguishing and increasing the speed of fire extinguishing; due to the increased pressure in the storage cavity, the dry powder is rapidly sprayed out from the nozzle, thus increasing the speed of dry powder spraying and the distance of dry powder spraying, thereby increasing the fire extinguishing range; due to the increased pressure in the storage cavity, the convection speed of the gas inside the cabinet is increased when the gas is sprayed out, thus increasing the diffusion speed of the dry powder, enabling the dry powder to quickly spread to the fire area and cover the non-fire areas to prevent the spread of the fire.

[0027] 5. In this invention, the sealing plate near the fixed connection seat is a split structure. When the explosion occurs, the inner and outer sealing plates rotate simultaneously. A limiting protrusion is set at the hinge between the storage box and the inner sealing plate. When the inner sealing plate rotates to a certain angle, it stops rotating, while the outer sealing plate continues to rotate to its maximum angle. As a result, part of the dry powder that is sprayed along with the CO2 gas changes direction and moves towards the cabinet door due to the obstruction of the inner sealing plate. Since the space on the cabinet door side is larger, it facilitates the diffusion of the dry powder, thereby increasing the coverage of dry powder on other electrical components and thus helping to prevent the spread of fire. The other part covers the wires on the back of the cabinet through the inner sealing plate, thus extinguishing the fire while preventing its spread. Attached Figure Description

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the overall structure of the distribution box in this invention; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is an exploded schematic diagram of the distribution box in this invention; Figure 4 This is a schematic diagram of the first internal structure of the distribution box in this invention; Figure 5 yes Figure 4 A magnified view of a section at point B in the middle; Figure 6 This is a schematic diagram of the stirring and loosening mechanism in this invention; Figure 7 This is a schematic diagram of the second internal structure of the distribution box in this invention; Figure 8 yes Figure 7 A magnified view of a section at point C; Figure 9 This is a schematic diagram of the storage box structure in this invention; In the diagram: Cabinet 1, Cabinet door 11, Mounting rail 12, Heat dissipation hole 13, Storage box 2, Nozzle 21, Partition 22, Independent cavity 221, Air outlet 222, Opening plate 223, Opening protrusion 2231, Storage cavity 1 23, Storage cavity 24, Limiting protrusion 25, Sealing plate 3, Inner sealing plate 31, Outer sealing plate 32, Fixed connecting seat 4, Spray trigger 5, Limiting boss 51, Metal heat-conducting component 52, Stirring and loosening mechanism 6, Coil spring 60, Rotating shaft 61, Stop bar 62, Limiting rod 63, Loosening component 64, Connecting rope 641, Loosening rod 642, Loosening tooth 643, Transmission wheel 65, Stirring shaft 66, Driven pulley 67, Driven pulley 68, Synchronous belt 69, Baffle plate 7, Torsion spring 71, Supporting boss 72, Impact trigger 8, Sliding rod 81, Impact boss 82. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 9 As shown, an intelligent safety distribution box with multiple fire suppression and extinguishing structures includes a cabinet 1, a cabinet door 11, mounting rails 12, storage boxes 2, a sealing plate 3, a fixed connecting seat 4, a spray trigger 5, and a fire extinguishing agent. The cabinet door 11 is located on the front of the cabinet 1 and is fixedly connected to the cabinet 1 via hinges. Mounting rails 12 are spaced apart on the inner wall of the back of the cabinet 1 and are fixedly connected to the inner wall of the back of the cabinet 1. Electrical components are fixedly connected to the cabinet 1 via the mounting rails 12. Storage boxes 2 are located on both sides of the mounting rails 12 and are fixedly connected to the inner wall of the back of the cabinet 1 via the fixed connecting seat 4. Each storage box 2 contains a set of phase... Each nozzle 21 is provided on the side wall of the container; the nozzle 21 faces the electrical component; a sealing plate 3 is hinged to each pair of opposite sides of the nozzle 21; the nozzle 21 is sealed by the cooperation between the two sealing plates 3; the sealing plates 3 are sealed to each other and to the storage box 2; the storage box 2 is divided into a first storage cavity 23 and a second storage cavity 24 by a partition 22; both the first storage cavity 23 and the second storage cavity 24 are filled with fire extinguishing agent; the two nozzles 21 are respectively connected to the first storage cavity 23 and the second storage cavity 24; the two sealing plates 3 are connected by a spray trigger 5; the spray trigger 5 is made of a thermally decomposable heat-sensitive insulating material.

[0032] During operation, poor contact in the distribution box can lead to localized overheating, causing the internal materials of the box to ignite and potentially resulting in a fire. If not extinguished promptly, the fire can spread and cause significant damage. Therefore, automatic fire suppression systems are installed in distribution boxes to extinguish fires in a timely manner. Existing fire suppression systems commonly use smoke or heat detectors; however, these are susceptible to false alarms or missed alarms due to airflow, dust, and other factors, increasing the risk of fire spread. Furthermore, the wiring connections inside the distribution box are typically located at the terminals of electrical components. Poor contact usually occurs at the joints, so the ignition point is located at the electrical components. When a fire occurs inside the distribution box, the flame first comes into contact with the spray trigger 5 on both sides of the electrical components. Because the spray trigger 5 is made of thermally decomposable heat-sensitive insulating material, the flame will ignite and decompose the heat-sensitive insulating material. Since the heat-sensitive material contains substances such as KHNO3 and K2CO3, it will undergo a decomposition reaction at high temperatures. The chemical equations for the decomposition are 2KHCO3=K2CO3+H2O↑+CO2↑ and K2CO3=K2O+CO2↑. Because a large amount of heat is consumed during decomposition, the flame will then ignite and decompose the heat-sensitive insulating material. The temperature in the area decreases, and storage box 2 provides some protection against the flame, thus reducing the chance of igniting other electrical components and wires. During the decomposition of substances in the heat-sensitive insulating material, CO2 gas is produced. CO2 gas can isolate oxygen, thus inhibiting combustion and preventing the continued combustion of electrical components to a certain extent. As the injection trigger 5 burns, it is consumed, reducing its strength. Due to the pressure within the storage chambers (collectively referred to as storage chamber 23 and storage chamber 24), the strength of the injection trigger 5 decreases to a point where it is difficult to ignite. When the sealing plate 3 is restrained, the pressure inside the storage cavity quickly pushes the sealing plate 3 open, thereby achieving automatic opening of the sealing plate 3. The high-pressure gas inside is then quickly discharged to the outside, which in turn drives the extinguishing agent to be sprayed out from the nozzle 21. This allows the extinguishing agent to cover the surface of the electrical components, further isolating the oxygen in the air, thus achieving automatic fire extinguishing when a fire occurs in the distribution box, while improving the reliability of fire extinguishing activation. By dividing the storage box 2 into storage cavity 1 23 and storage cavity 24, targeted fire extinguishing can be carried out according to the electrical components in different locations when a fire occurs, thereby improving the timeliness of fire extinguishing.

[0033] like Figures 4 to 8As shown, the extinguishing agent is dry powder; both the first storage chamber 23 and the second storage chamber 24 are equipped with a stirring and loosening mechanism 6; the stirring and loosening mechanism 6 includes a coil spring 60, a rotating shaft 61, a stop bar 62, a limiting bar 63, and a loosening component 64; the loosening component 64 is located in the first storage chamber 23 and the second storage chamber 24; the loosening component 64 is used to loosen the clumped dry powder; the loosening component 64 is connected to the rotating shaft 61; one end of the rotating shaft 61 is rotatably connected to the side wall of the storage box 2; the other end of the rotating shaft 61 is rotatably connected to the fixed connecting seat 4. On the base plate; a coil spring 60 is sleeved on the rotating shaft 61; one end of the coil spring 60 is fixedly connected to the rotating shaft 61; the other end of the coil spring 60 is fixedly connected to the fixed connecting seat 4; the stop rod 62 is fixedly connected to the rotating shaft 61 between the storage box 2 and the coil spring 60; the middle part of the limiting rod 63 is rotatably connected to the sealing plate 3 near the stop rod 62; a limiting boss 51 is provided on the spray trigger 5; one end of the limiting rod 63 contacts the limiting boss 51; the other end of the limiting rod 63 contacts the end of the stop rod 62.

[0034] During operation, dry powder is typically used as an extinguishing agent in the event of an electrical fire. Because the storage tank 2 remains stationary within the cabinet 1 for an extended period, the dry powder tends to settle at the bottom of the storage chamber and may clump. Therefore, when using dry powder as an extinguishing agent, it is usually necessary to shake it to loosen the clumps. Since the storage tank 2 remains stationary within the cabinet 1, in the event of a fire, the flame contacts and ignites the spray trigger 5. Due to the smaller size of the limiting boss 51, the spray trigger 5 will burn and decompose first, thus extinguishing the flame. The constraint of limit rod 63 on 51 disappears, thereby breaking the balance of limit rod 63. Under the action of coil spring 60, the rotating shaft 61 is driven to rotate, which in turn drives loosening component 64 to rotate. Loosening component 64 agitates the dry powder in the storage cavity, thereby loosening the clumped dry powder. This ensures that the sprayed dry powder is loosened by loosening component 64, and that the dry powder is evenly dispersed after being sprayed from nozzle 21. This method has a simple structure and the loosening component 64 will not malfunction, thereby improving the reliability of eliminating clumps before spraying dry powder.

[0035] like Figures 4 to 6As shown, the loosening component 64 is made by evenly spaced loosening rods 642 on a ring-shaped connecting rope 641; the loosening rods 642 are fixedly connected to the connecting rope 641; two sets of transmission wheels 65 are provided inside the ring-shaped loosening component 64; the outer surface of the transmission wheels 65 is provided with grooves that match the loosening rods 642; the two sets of transmission wheels 65 cooperate to drive the loosening component 64 to move; the two sets of transmission wheels 65 are respectively fixedly connected to two stirring shafts 66; the stirring shafts 66 are rotatably connected to... The storage tank 2 is located on the side wall; the stirring shaft 66 is located at one end of the fixed connecting seat 4 and passes through the side wall of the storage tank 2; a driven pulley 67 is provided on the stirring shaft 66; the driven pulley 67 is connected to the stirring shaft 66 through a one-way bearing; a driving pulley 68 is provided on the rotating shaft 61; the driving pulley 68 is fixedly connected to the rotating shaft 61; the driving pulley 68 and the driven pulley 67 are driven by a synchronous belt 69; the loosening rod 642 is provided with loosening teeth 643.

[0036] During operation, because the electrical components are installed along the mounting rail 12, to ensure that each electrical component on the mounting rail 12 is covered in the event of a fire, the length of the storage box 2 needs to be greater than the total length of the electrical components on the mounting rail 12. This ensures that the dry powder sprayed from the nozzle 21 covers all the electrical components on the mounting rail 12. If some powder clumps together, it will affect the uniform diffusion of the dry powder after spraying, resulting in some electrical components not being covered with dry powder, thus reducing the fire extinguishing effect. Therefore, when the flame ignites the limiting boss 51 in the event of a fire, the limiting boss 51 burns and decomposes, gradually shrinking, and thus the constraint of the limiting boss 51 on the limiting rod 63 disappears, thereby breaking the balance of the limiting rod 63. Under the action of the coil spring 60, the rotating shaft 61 rotates, which in turn drives the driving pulley 68 to rotate, which in turn drives the driven pulley 67 to rotate via the synchronous belt 69, which in turn drives the stirring shaft 66 to rotate, which in turn drives the transmission wheel 65 to rotate. The slot on the moving wheel 65 engages with the loosening rod 642, thereby causing the loosening rod 642 on the connecting rope 641 to move. Since the stirring shaft 66 is located at both ends of the storage cavity, and the loosening rod 642 is provided with loosening teeth 643, the dry powder in the entire storage cavity is loosened, thereby ensuring that the dry powder in the storage cavity is not caking, and ensuring that the sprayed dry powder can be evenly diffused and cover the electrical components for fire extinguishing. Since a fire may occur at any electrical component on the mounting rail 12, several coil springs 60 for driving the movement of the loosening component 64 can be set up, and the transmission can be carried out by the cooperation of the driving pulley 68, the driven pulley 67 and the synchronous belt 69. By setting a one-way bearing between the driven pulley 67 and the stirring shaft 66, it can be ensured that the loosening component 64 can be driven independently to loosen the caking dry powder after any limiting boss 51 loses its constraint on the limiting rod 63, thereby improving the reliability of eliminating caking before dry powder spraying.

[0037] like Figure 5 As shown, the partition 22 has two independent cavities 221; each independent cavity 221 is filled with high-pressure CO2 gas; the pressure inside each independent cavity 221 is greater than the pressure inside the first storage cavity 23 and the second storage cavity 24; vents 222 are provided on the side walls of the two independent cavities 221; the vents 222 are respectively located in the first storage cavity 23 and the second storage cavity 24; an opening plate 223 is provided at each vent 222; the opening plate 223 is slidably connected to the side wall of the partition 22; the opening plate 223 is used to block the vent 222; the opening plate 223 has an air passage hole; the opening plate 223 has an opening protrusion 2231; one of the loosening rods 642 on the loosening member 64 has an opening boss.

[0038] During operation, the storage chamber is sealed by sealing plates 3, making the internal pressure greater than the external pressure. The two sealing plates 3 are fixed together by a spray trigger 5. To ensure the dry powder is quickly ejected after the spray trigger 5 is ignited, the strength of the spray trigger 5 cannot be too high, thus limiting the pressure inside the storage chamber and consequently limiting the spray distance and diffusion speed of the dry powder. Therefore, two independent cavities 221 are provided within the partition 22, and high-pressure CO2 gas is filled into these cavities, making the pressure inside the independent cavities 221 greater than the pressure inside the storage chamber. When the coil spring 60 moves the loosening member 64 to loosen the dry powder, the opening boss on the loosening rod 642 contacts and pushes the opening protrusion 2231, thereby moving the opening plate 223 and opening the air passage and outlet. When the gas inlet 222 is connected, the high-pressure CO2 gas in the independent cavity 221 enters the storage cavity, thereby increasing the pressure inside the storage cavity. This causes the force of the gas inside the storage cavity on the sealing plate 3 to quickly exceed the binding force of the spray trigger 5 on the sealing plate 3, thus rapidly pushing it away from the sealing plate 3. This shortens the time required for the dry powder to be sprayed out for fire extinguishing and increases the speed of fire extinguishing. Due to the increased pressure inside the storage cavity, the dry powder is rapidly sprayed out from the nozzle 21, which increases the speed of dry powder spraying and the distance of dry powder spraying, thereby increasing the fire extinguishing range. Due to the increased pressure inside the storage cavity, the convection velocity of the gas inside the cabinet 1 is increased when the gas is sprayed out, which increases the diffusion velocity of the dry powder, allowing the dry powder to quickly diffuse to the fire area and cover the non-fire areas to prevent the spread of the fire.

[0039] like Figure 6 and Figure 8As shown, the sealing plate 3 near the fixed connecting seat 4 is a split structure; the sealing plate 3 includes an inner sealing plate 31 and an outer sealing plate 32; both the inner sealing plate 31 and the outer sealing plate 32 are hinged to the storage box 2; the outer sealing plate 32 is pressed onto the inner sealing plate 31; the outer sealing plate 32 and the inner sealing plate 31 are sealed; a limiting protrusion 25 is provided at the hinge point between the storage box 2 and the inner sealing plate 31.

[0040] During operation, the sealing plate 3 near the fixed connection seat 4 is directly below the electrical components. When it is opened, the dry powder sprayed out will hit the electrical components, which will obstruct the diffusion of the dry powder. Therefore, by making the sealing plate 3 near the fixed connection seat 4 a split structure, the inner sealing plate 31 and the outer sealing plate 32 rotate simultaneously when it explodes. A limiting protrusion 25 is set at the hinge between the storage box 2 and the inner sealing plate 31. When the inner sealing plate 31 rotates to a certain angle, it stops rotating, while the outer sealing plate 32 continues to rotate to the maximum angle. Then, part of the dry powder sprayed along with the CO2 gas changes direction and moves towards the cabinet door 11 under the obstruction of the inner sealing plate 31. Since the space on the cabinet door 11 side is larger, it is easier for the dry powder to diffuse, thereby increasing the amount of dry powder covered on other electrical components, which helps to prevent the spread of fire. The other part covers the wires on the back of the cabinet 1 through the inner sealing plate 31, extinguishing the fire while preventing the spread of fire.

[0041] As shown in Figure 8, a metal heat-conducting component 52 is embedded in the injection trigger 5; the metal heat-conducting component 52 is made by bending a perforated sheet.

[0042] During operation, the material inside the spray trigger 5 decomposes by absorbing heat. Therefore, the decomposition of the spray trigger 5 proceeds gradually from the outside to the inside, resulting in a gradual decrease in the strength of the spray trigger 5. This increases the time it takes for the spray trigger 5 to break, thereby increasing the risk of fire spread. Therefore, by pre-embedding a metal heat-conducting element 52 inside the spray trigger 5, after the flame comes into contact with the spray trigger 5, the heat-conducting element transfers heat to the interior of the spray trigger 5, causing decomposition inside as well. This accelerates the breakage of the spray trigger 5 and reduces the risk of fire spread. Because the metal heat-conducting element 52 is made of bent perforated sheet metal, it prevents the spray trigger 5 from being isolated, thus ensuring the strength of the spray trigger 5 when it is not damaged.

[0043] like Figures 1 to 4As shown, the cabinet 1 has a heat dissipation hole 13 on its side wall; a baffle plate 7 is provided at the heat dissipation hole 13; the baffle plate 7 is hinged to the side wall of the heat dissipation hole 13, and a torsion spring 71 is provided between the baffle plate 7 and the side wall of the heat dissipation hole 13; one end of the torsion spring 71 is fixedly connected to the baffle plate 7; the other end of the torsion spring 71 is fixedly connected to the side wall of the heat dissipation hole 13; a support boss 72 is provided on the side of the baffle plate 7 inside the cabinet 1; an impact trigger 8 is provided on the back of the cabinet 1; the impact trigger 8 is slidably connected to the side wall of the storage box 2 via a sliding rod 81; the sliding rod 81 cooperates with the support boss 72; the impact trigger 8 is provided with an impact boss 82.

[0044] During operation, in order to cool the inside of cabinet 1, heat dissipation holes 13 are usually set on the side wall of cabinet 1. In the event of a fire, if the heat dissipation holes 13 are not sealed in time, oxygen from the outside of cabinet 1 will enter through the heat dissipation holes 13, thus increasing the difficulty of fire extinguishing. Therefore, when a fire occurs, during the process of triggering the dry powder to spray out, the sealing plate 3 rotates around the intersection point under the action of the impact force, and then the sealing plate 3 hits the boss 82, which in turn drives the impact trigger 8 to move, which in turn drives the sliding rod 81 to move, and then the sliding rod 81 disengages from the supporting boss 72. Then, under the torsion of the torsion spring 71, the baffle plate 7 rotates, thus blocking the heat dissipation holes 13 in time, thus isolating the outside oxygen and preventing oxygen from entering the cabinet 1, thereby improving the fire extinguishing effect. If the internal pressure is higher than the external pressure during a fire, an airflow trend of "from the inside to the outside" will be formed. According to the principles of fluid mechanics, gas in high-pressure areas will diffuse to low-pressure areas. This means that internal smoke or extinguishing agent gas will escape outward through the heat dissipation hole 13, while external oxygen is difficult to flow in against the pressure difference. Therefore, even if the baffle is not completely closed by the torsion spring due to internal pressure, there is still an "airlock effect", that is, the internal outward airflow forms a barrier to prevent oxygen backflow, thereby playing a role in isolating oxygen and thus still improving the fire extinguishing effect.

[0045] The limiting boss 51 has a hollow structure.

[0046] During operation, by setting the limiting boss 51 as a cavity structure, the time required for the limiting boss 51 to disintegrate is shortened, thereby ensuring that when the limiting boss 51 loses its ability to constrain the limiting rod 63, the binding force of the spray trigger 5 on the sealing plate 3 is greater than the pressure in the storage cavity, thus ensuring that the clumped dry powder is loosened before being sprayed out.

[0047] The length of the loose teeth 643 located inside the connecting rope 641 of the annular structure exceeds the thickness of the dry powder; the loose teeth 643 are made of rubber material.

[0048] During operation, because the thickness of the dry powder in the storage cavity is greater than the diameter of the loosening rod 642, if the loosening teeth 643 on the loosening rod 642 do not exceed the thickness of the dry powder, the loosening teeth 643 cannot disperse all the clumped dry powder. Therefore, by extending the length of the loosening teeth 643 inside the connecting rope 641 of the annular structure beyond the thickness of the dry powder, it is ensured that all the clumped dry powder is loosened. When the thickness of the dry powder exceeds the stirring shaft 66, the loosening teeth 643 will contact the stirring shaft 66 during the movement, and even the loosening teeth 643 will contact each other. Therefore, the loosening teeth 643 are made of rubber material, thereby ensuring the normal operation of the loosening component 64 and avoiding affecting the loosening of the clumped dry powder.

[0049] The intelligent safety distribution box also includes a temperature sensing linkage module, which includes multiple temperature sensors distributed in different areas inside the cabinet 1. The temperature sensors are electrically connected to a microprocessor installed inside the cabinet 1. The microprocessor is electrically connected to the main power switch of the cabinet 1 and the gas release auxiliary device in the independent cavity 221.

[0050] During operation, when a temperature sensor in a certain area of ​​cabinet 1 detects an abnormal temperature rise reaching a preset warning threshold (e.g., 80°C), the microprocessor first controls the main power switch to cut off the main power supply to cabinet 1 to prevent an electrical fire from escalating due to continued power supply. If the temperature continues to rise to a preset trigger threshold (e.g., 150°C, which is lower than the ignition point of the injection trigger 5), the microprocessor activates a gas release auxiliary device. This device can be controlled by a small solenoid valve to pre-open a miniature auxiliary channel between the independent cavity 221 and the storage cavity, releasing a small amount of high-pressure CO2 gas into the storage cavity. This small amount of gas will not immediately push open the sealing plate 3, but it will cause initial disturbance to the dry powder in the storage cavity, and at the same time increase the pressure in the storage cavity to a certain extent, preparing for the rapid and efficient spraying of dry powder after the subsequent injection trigger 5 is ignited. This temperature-sensing linkage mechanism can intervene in advance when the temperature has reached a dangerous level in the early stages of a fire, before obvious flames have formed. By using both power outage and pre-pressurization, it can further shorten the fire extinguishing response time and create more favorable conditions for the effective spraying of dry powder, thereby significantly improving the overall fire safety level of the distribution box.

[0051] The microprocessor performs multi-dimensional analysis and logical judgment on the real-time data collected by the temperature sensor according to a preset fast response algorithm, so as to achieve precise and rapid control of the fire extinguishing process.

[0052] The rapid response algorithm first performs real-time filtering on the temperature sensor data from each area to eliminate temperature spikes caused by non-fire factors such as momentary overload of electrical components, ensuring data accuracy. Then, the algorithm dynamically compares the processed temperature values ​​with preset warning and trigger thresholds. When the temperature in any area reaches the warning threshold, the algorithm immediately triggers a first-level response command, driving the main power switch to perform a power-off operation via the control module and simultaneously starting a timing function to monitor temperature trends. If, within a preset delay time (e.g., 3 seconds), the temperature does not decrease but continues to rise, or directly jumps to the trigger threshold, the algorithm determines that the fire risk is extremely high and immediately initiates a second-level response, sending an activation signal to the gas release auxiliary device to control the opening of the micro-auxiliary channel, releasing a small amount of high-pressure CO2 gas for pre-pressurization and dry powder disturbance. During this process, the algorithm continuously monitors the pressure changes within the storage chamber (through feedback data from a preset pressure sensor). When it detects that the pre-pressurization has reached the set target value (e.g., 1.2 times the initial pressure of the storage chamber), it automatically closes the auxiliary channel to prevent excessive pressure rise from causing unnecessary load on the equipment structure.

[0053] Meanwhile, the algorithm incorporates parameters such as the rate of temperature change, the number of sensors reaching the threshold, and their distribution location into the comprehensive evaluation model. If it is determined to be a localized small fire (such as a single sensor exceeding the threshold and the temperature rise rate being slow), the pre-pressurization intensity and the initial pressure of subsequent dry powder injection will be appropriately reduced to save extinguishing agent and reduce the impact on undamaged electrical components. If it is determined to be a large-scale fire (such as multiple adjacent sensors exceeding the threshold simultaneously and the temperature rises rapidly), the algorithm will issue an enhancement command to ensure that the high-pressure CO2 gas in the independent cavity 221 is released instantaneously at the maximum flow rate after the loosening component 64 completes the dry powder loosening action, causing the pressure in the storage cavity to rise sharply, thereby achieving a powerful and rapid injection of dry powder.

[0054] In addition, the algorithm has a self-diagnostic function. While the fire extinguishing process is started, it monitors the working status of key components such as temperature sensors, transmission mechanisms, and gas release devices in real time. Once an abnormality is detected in a component (such as sensor data failure or transmission wheel jamming), the backup control logic is immediately activated. For example, it switches to sensor data from adjacent areas for cross-verification or activates a backup drive motor to move loose parts, ensuring that the fire extinguishing process can still be reliably executed under extreme conditions and maximizing the safety of the distribution box.

[0055] During operation, when a fire occurs inside the distribution box, the flames first come into contact with the spray triggers 5 on both sides of the electrical components. Because the spray triggers 5 are made of thermally decomposable heat-sensitive insulating material, the flames will ignite and decompose the heat-sensitive insulating material. Since the heat-sensitive material contains substances such as KHNO3 and K2CO3, it will undergo a decomposition reaction at high temperatures. The chemical equations for the decomposition are 2KHCO3=K2CO3+H2O↑+CO2↑ and K2CO3=K2O+CO2↑. Because a large amount of heat is consumed during decomposition, the temperature of the flame area is reduced. At the same time, the storage box 2 has a certain blocking effect on the flames, thus reducing the probability of igniting other electrical components and wires. During the decomposition of substances in the heat-sensitive insulating material, CO2 gas is produced. CO2 gas can isolate oxygen, thus inhibiting combustion and preventing the continued combustion of electrical components to a certain extent. As the spray trigger 5 burns, it is consumed, reducing its strength. Since the storage chamber (collectively referred to as storage chamber 23 and storage chamber 24) has a certain pressure, when the strength of the spray trigger 5 decreases to the point where it can no longer restrain the sealing plate 3, the pressure within the storage chamber quickly pushes the sealing plate 3 open, automatically opening it. This allows the high-pressure gas inside to be rapidly expelled outwards, driving the extinguishing agent out from the nozzle 21. The extinguishing agent then covers the surface of the electrical components, further isolating oxygen in the air, thus enabling automatic fire extinguishing when the distribution box catches fire, while also improving the reliability of fire extinguishing activation. By dividing the storage box 2 into storage chamber 23 and storage chamber 24, targeted fire extinguishing can be carried out based on the location of the electrical components in different locations, improving the timeliness of fire extinguishing.

[0056] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. An intelligent safety distribution box with multiple fire suppression and extinguishing structures, characterized in that: The system includes a cabinet (1), a cabinet door (11), mounting rails (12), a storage box (2), a sealing plate (3), a fixed connecting seat (4), a spray trigger (5), and a fire extinguishing agent. The cabinet door (11) is provided on the front of the cabinet (1). The cabinet door (11) is fixedly connected to the cabinet (1) by a hinge. The mounting rails (12) are spaced apart on the inner wall of the back of the cabinet (1). The mounting rails (12) are fixedly connected to the inner wall of the back of the cabinet (1). Electrical components are fixedly connected to the cabinet (1) through the mounting rails (12). The storage boxes (2) are provided on both sides of the mounting rails (12). The storage boxes (2) are fixedly connected to the inner wall of the back of the cabinet (1) through the fixed connecting seat (4). Spray nozzles are provided on a set of opposite side walls of the storage boxes (2). (21); the nozzle (21) faces the electrical component; a sealing plate (3) is hinged to each of a pair of opposite sides of the nozzle (21); the nozzle (21) is sealed by the cooperation between the two sealing plates (3); the sealing plates (3) are sealed to each other and to the storage box (2); the storage box (2) is divided into a first storage chamber (23) and a second storage chamber (24) by a partition (22); fire extinguishing agent is provided in both the first storage chamber (23) and the second storage chamber (24); the two nozzles (21) are connected to the first storage chamber (23) and the second storage chamber (24) respectively; the two sealing plates (3) are connected by a spray trigger (5); the spray trigger (5) is made of a thermally decomposable heat-sensitive insulating material.

2. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 1, characterized in that: The extinguishing agent is dry powder; both the first storage chamber (23) and the second storage chamber (24) are equipped with a stirring and loosening mechanism (6); the stirring and loosening mechanism (6) includes a coil spring (60), a rotating shaft (61), a stop bar (62), a limiting rod (63), and a loosening component (64); the loosening component (64) is located in the first storage chamber (23) and the second storage chamber (24); the loosening component (64) is used to loosen the clumped dry powder; the loosening component (64) is connected to the rotating shaft (61); one end of the rotating shaft (61) is rotatably connected to the side wall of the storage box (2); the other end of the rotating shaft (61) is rotatably connected to the bottom of the fixed connecting seat (4). On the plate; the coil spring (60) is sleeved on the rotating shaft (61); one end of the coil spring (60) is fixedly connected to the rotating shaft (61); the other end of the coil spring (60) is fixedly connected to the fixed connecting seat (4); the stop rod (62) is fixedly connected on the rotating shaft (61) between the storage box (2) and the coil spring (60); the middle part of the limiting rod (63) is rotatably connected to the sealing plate (3) on the side near the stop rod (62); the spray trigger (5) is provided with a limiting boss (51); one end of the limiting rod (63) contacts the limiting boss (51); the other end of the limiting rod (63) contacts the end of the stop rod (62).

3. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 2, characterized in that: The loosening component (64) is made by evenly spaced loosening rods (642) on a ring-shaped connecting rope (641); the loosening rods (642) are fixedly connected to the connecting rope (641); two sets of transmission wheels (65) are provided inside the ring-shaped loosening component (64); the outer surface of the transmission wheels (65) is provided with grooves that match the loosening rods (642); the two sets of transmission wheels (65) cooperate to drive the loosening component (64) to move; the two sets of transmission wheels (65) are respectively fixedly connected to two stirring shafts (66); the stirring shafts (66) are rotatably connected to the storage tank. (2) On the side wall; the stirring shaft (66) is located at one end of the fixed connecting seat (4) and passes through the side wall of the storage box (2); a driven pulley (67) is provided on the stirring shaft (66); the driven pulley (67) is connected to the stirring shaft (66) through a one-way bearing; a driving pulley (68) is provided on the rotating shaft (61); the driving pulley (68) is fixedly connected to the rotating shaft (61); the driving pulley (68) and the driven pulley (67) are driven by a synchronous belt (69); a loosening tooth (643) is provided on the loosening rod (642).

4. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 3, characterized in that: The partition (22) contains two independent cavities (221); each independent cavity (221) is filled with high-pressure CO2 gas; the pressure inside each independent cavity (221) is greater than the pressure inside the first storage cavity (23) and the second storage cavity (24); each independent cavity (221) has an outlet (222) on its sidewall; the outlet (222) is connected to the first storage cavity (23) and the second storage cavity (24) respectively. 4) Inside; an opening plate (223) is provided at the air outlet (222); the opening plate (223) is slidably connected to the side wall of the partition (22); the opening plate (223) is used to block the air outlet (222); an air passage hole is provided on the opening plate (223); an opening protrusion (2231) is provided on the opening plate (223); an opening boss is provided on one of the loosening rods (642) on the loosening member (64).

5. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 4, characterized in that: The sealing plate (3) near the fixed connecting seat (4) is a split structure; the sealing plate (3) includes an inner sealing plate (31) and an outer sealing plate (32); the inner sealing plate (31) and the outer sealing plate (32) are both hinged to the storage box (2); the outer sealing plate (32) is pressed onto the inner sealing plate (31); the outer sealing plate (32) and the inner sealing plate (31) are sealed; a limiting protrusion (25) is provided at the hinge of the storage box (2) and the inner sealing plate (31).

6. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 5, characterized in that: The jet trigger (5) has a pre-embedded metal heat-conducting component (52); the metal heat-conducting component (52) is made by bending a perforated sheet.

7. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 6, characterized in that: The cabinet (1) has a heat dissipation hole (13) on its side wall; a shield (7) is provided at the heat dissipation hole (13); the shield (7) is hinged to the side wall of the heat dissipation hole (13), and a torsion spring (71) is provided between the shield (7) and the side wall of the heat dissipation hole (13); one end of the torsion spring (71) is fixedly connected to the shield (7); the other end of the torsion spring (71) is fixedly connected to the side wall of the heat dissipation hole (13); a support boss (72) is provided on the side of the shield (7) inside the cabinet (1); an impact trigger (8) is provided on the back of the cabinet (1); the impact trigger (8) is slidably connected to the side wall of the storage box (2) by a sliding rod (81); the sliding rod (81) cooperates with the support boss (72); an impact boss (82) is provided on the impact trigger (8).

8. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 7, characterized in that: The limiting boss (51) has a hollow structure.

9. The intelligent safety distribution box with multiple fire suppression and extinguishing structures according to claim 8, characterized in that: The length of the loose tooth (643) located inside the connecting rope (641) of the annular structure exceeds the thickness of the dry powder; the loose tooth (643) is made of rubber material.

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