Intelligent comprehensive distribution box with fire-fighting system function

Abstract

The application provides a kind of intelligent comprehensive distribution box with fire-fighting system function, and relates to the technical field of distribution box.A kind of intelligent comprehensive distribution box with fire-fighting system function includes distribution box body, the distribution box body includes electrical component box, air inlet end box and air outlet end box, the air inlet end box is provided with bottom end initiative mechanism, the bottom end initiative mechanism includes vacuum pump, two filter cabins, shunt component and plugging component, the air outlet end box is provided with top end initiative mechanism, the top end initiative mechanism includes two current collectors, exhaust fan, dustproof component and elastic component;By vacuum pump, exhaust fan and plugging component, the inside of distribution box body can form smooth air passage for normal use in ventilation and heat dissipation, and also can form closed and vacuum state in the distribution box body, for reducing the oxygen required by open fire and then reducing the probability of open fire formation.

Description

An intelligent integrated power distribution box with fire protection system functions Technical Field

[0001] This application relates to the field of distribution box technology, and more specifically, to an intelligent integrated distribution box with fire protection system functions. Background Technology

[0002] With the rapid development of technology and the continuous growth of people's demand for electricity, the limitations of traditional distribution boxes in terms of function and performance have gradually become apparent. In order to meet the stringent requirements of modern power systems for intelligence, efficiency, and reliability, intelligent integrated distribution boxes have emerged.

[0003] During operation, electrical faults, overloads, short circuits, and other reasons can easily cause fires in distribution boxes. Once a fire occurs, it will not only lead to power outages and disrupt normal production and living order, but may also cause serious property damage and casualties.

[0004] Therefore, a reliable fire protection system is crucial for intelligent integrated distribution boxes to ensure power safety. It can quickly implement effective firefighting measures in the early stages of a fire, extinguishing it in its nascent stage, thereby minimizing the damage caused by the fire and providing a solid guarantee for the safe and stable operation of the power system. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes an intelligent integrated distribution box with fire protection system functions, including a distribution box body. The distribution box body includes a centrally located electrical component box, a bottom-mounted air inlet box, and a top-mounted air outlet box. The electrical component box houses a smoke sensor, a temperature sensor, a light intensity sensor, a carbon dioxide fire extinguisher, and a programmable logic controller. The air inlet box has symmetrically arranged outer air inlet grilles on both sides. A bottom active mechanism is provided on the air inlet box, including a vacuum pump located at the bottom, two symmetrically arranged filter chambers inside, a flow diversion component at the top, and sealing components symmetrically arranged on both sides of the air inlet box and cooperating with the outer air inlet grilles. The air inlet of the vacuum pump is connected to the air inlet box. The air outlet box is equipped with... The device is equipped with a top-mounted active mechanism, which includes two symmetrically arranged manifolds at the top of the electrical component box, an exhaust fan located at the top of the outlet box, a dustproof component located at the top of the outlet box and coaxial with the exhaust fan, and an elastic component located within the dustproof component. In state one, the vacuum pump stops, the exhaust fan starts, the sealing component separates from the outer air intake grille, the elastic component extends, and the dustproof component rises, forming a clear air passage within the entire electrical distribution box. In state two, the vacuum pump starts, the exhaust fan stops, the sealing component overlaps with the outer air intake grille, the elastic component shortens, and the dustproof component descends, forming a seal within the entire electrical distribution box and creating a certain vacuum state through the vacuum pump.

[0006] Preferably, the air inlet housing has a U-shaped structure with an opening facing downwards, and symmetrical chambers are arranged on both sides for placing the filter chamber. The vacuum pump is arranged in the lower middle part and exposed to the outside. The air inlet end of the vacuum pump is connected to the middle position of the air inlet housing. An inner air inlet grille is also provided on the side where the chambers holding the filter chamber are close to each other. The inner air inlet grille makes the entire U-shaped air inlet housing form a continuous structure.

[0007] Preferably, the exhaust housing includes a lower air intake chamber and an upper exhaust chamber. The lower air intake chamber is divided into two symmetrical chambers, while the upper exhaust chamber is a single, unobstructed chamber. The lower air intake chamber has multiple lower air intake channels at its bottom and is connected to the electrical component box via these channels. The upper exhaust chamber and the lower air intake chamber are connected via two rotatably mounted manifolds. The upper exhaust chamber has multiple upper exhaust holes evenly distributed around its top circumference. The exhaust fan is positioned at the axis of the multiple upper exhaust holes and located at the top of the upper exhaust chamber. The dustproof component is coaxially positioned around and covers the multiple upper exhaust holes. The elastic component is coaxially positioned at the axis of the multiple upper exhaust holes and located at the top of the upper exhaust chamber.

[0008] Preferably, the filter chamber is slidably and sealed to the air inlet housing, a collection chamber is slidably and sealed to the bottom side of the filter chamber, a plurality of chip discharge grooves for connecting the collection chamber are evenly arranged at the bottom of the filter chamber, and a plurality of air inlet grooves adapted to the outer air inlet grille are arranged on one side of the filter chamber.

[0009] Preferably, the diversion assembly includes an annular chamber embedded in the center of the top of the air inlet housing. The outer wall of the annular chamber is an annular baffle. The top of the annular baffle extends to the bottom of the electrical component box and has multiple air outlets evenly arranged circumferentially. A top plate is fixed to the top of the annular baffle. A diversion component is rotatably embedded inside the annular chamber. Multiple arc-shaped channels are evenly arranged circumferentially inside the diversion component. The arc-shaped channels are arc-shaped in both the axial and radial directions, and the multiple arc-shaped channels extend outward from the bottom to the top. The bottom of the arc-shaped channel is located at the bottom of the diversion component, and the top of the arc-shaped channel is located at the side wall of the diversion component.

[0010] Preferably, the sealing assembly includes a telescopic member fixed to the side wall of the electrical component box, and a sealing plate that is slidably fitted to the side wall of the air intake box. The sealing plate completely covers the outer air intake grille, and the sealing plate and the piston end of the telescopic member are fixedly connected.

[0011] Preferably, the manifold has a plurality of arc-shaped channels uniformly arranged in the inner circumference. The arc-shaped channels are arc-shaped in both the axial and radial directions, and the plurality of arc-shaped channels converge inward from the bottom to the top. The bottom of the arc-shaped channel is located on the outer wall of the manifold, and the top of the arc-shaped channel is located on the inner wall of the manifold.

[0012] Preferably, the dustproof component includes an annular enclosure, on which a lifting cover is coaxially and slidably fitted. The lifting cover and the elastic component are coaxially and fixedly connected, and the change in length of the elastic component prevents the lifting cover from detaching from the annular enclosure.

[0013] Preferably, the top of the annular enclosure is provided with a plurality of vent holes evenly distributed around its circumference.

[0014] Preferably, the elastic component includes a fixed chamber fixed to the top of the air outlet housing, a slide rod coaxially slidably inserted into the fixed chamber, one end of the slide rod extending out of the fixed chamber being fixed to the lifting cover, and both ends of the slide rod being coaxially fixed with annular flanges, wherein a spring abuts between the end of the slide rod inserted into the fixed chamber and the inner top of the fixed chamber, and the spring is sleeved on the slide rod.

[0015] The beneficial effects of this invention are:

[0016] 1. By utilizing the cooperation between the vacuum pump, exhaust fan and sealing components, a smooth air passage can be formed inside the distribution box for ventilation and heat dissipation during normal use. It can also form a closed and vacuum state inside the distribution box to reduce the oxygen required for open flame and thus reduce the probability of open flame formation.

[0017] 2. The bottom air intake and top exhaust design, combined with the principle of hot air rising and cold air falling, can further improve the heat dissipation inside the entire distribution box.

[0018] 3. The filter chamber can filter impurities and moisture in the air entering the distribution box, improving the cleanliness of the incoming airflow and preventing impurities carried in the airflow from damaging electrical components.

[0019] 4. The various sensors built into the electrical component box can be used to monitor the smoke, temperature, and light intensity inside the box in real time, and feed the data back to the programmable logic controller to control the corresponding start-up status of the vacuum pump, exhaust fan, and sealing components, as well as the use of the carbon dioxide fire extinguisher.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 is a schematic diagram of the overall structure of an intelligent integrated distribution box with fire protection system function according to an embodiment of this application;

[0023] Figure 2 is a partial structural schematic diagram of an intelligent integrated distribution box with fire protection system function according to an embodiment of this application;

[0024] Figure 3 is a partial structural schematic diagram of an intelligent integrated distribution box with fire protection system function according to an embodiment of this application;

[0025] Figure 4 is a partial structural schematic diagram of an intelligent integrated distribution box with fire protection system function according to an embodiment of this application;

[0026] Figure 5 is a partial structural schematic diagram of an intelligent integrated distribution box with fire protection system function according to an embodiment of this application;

[0027] Figure 6 is a partial exploded view of the bottom active mechanism according to an embodiment of this application;

[0028] Figure 7 is a schematic diagram of the structure of the sealing assembly according to an embodiment of this application;

[0029] Figure 8 is a partial structural schematic diagram of the top active mechanism according to an embodiment of this application;

[0030] Figure 9 is an enlarged schematic diagram of A in Figure 8 according to an embodiment of this application;

[0031] Figure 10 is an enlarged schematic diagram of B in Figure 8 according to an embodiment of this application;

[0032] Figure 11 is a partial exploded view of the filter chamber according to an embodiment of this application;

[0033] Figure 12 is an enlarged schematic diagram of C in Figure 11 according to an embodiment of this application;

[0034] Figure 13 is a schematic diagram of the position of the filter structure according to an embodiment of this application;

[0035] Figure 14 is an exploded view of the filter structure according to an embodiment of this application;

[0036] Figure 15 is a schematic diagram showing the position of the auxiliary structure according to an embodiment of this application;

[0037] Figure 16 is a schematic diagram of the auxiliary structure according to an embodiment of this application.

[0038] Icons: 1. Distribution box body; 11. Electrical component box; 12. Inlet end box; 121. Outer air intake grille; 122. Inner air intake grille; 13. Outlet end box; 131. Lower air intake chamber; 132. Upper exhaust chamber; 133. Lower air intake duct; 134. Upper exhaust port; 2. Bottom active mechanism; 21. Vacuum pump; 22. Filter chamber; 221. Collection chamber; 222. Chip removal trough; 223. Air intake trough; 23. Diverter assembly; 231. Annular chamber; 232. Annular baffle; 233. Air outlet; 234. Top plate; 235. Diverter component; 24. Sealing assembly; 241. Telescopic component; 242. Sealing plate; 3. Top active mechanism; 31. Combination component; 32. Exhaust fan; 33. Dustproof assembly; 331. Circular enclosure; 332. Exhaust port; 333. Lifting cover; 34. Elastic assembly; 341. Fixed chamber; 342. Slide rod; 343. Spring; 4. Filter structure; 41. Positioning block; 411. Mounting cavity; 412. Sewage discharge trough; 42. Filter cartridge; 421. Filter hole; 43. Flow guide; 431. Shaft; 432. Flow guide plate; 5. Auxiliary structure; 51. Flow guide strip; 52. Fixing strip. Detailed Implementation

[0039] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Example 1, as shown in Figures 1-11, according to an embodiment of this application, an intelligent integrated distribution box with fire protection system function includes a distribution box body 1. The distribution box body 1 includes an electrical component box 11 designed in the center, an air inlet box 12 designed at the bottom, and an air outlet box 13 designed at the top. The electrical component box 11 has a built-in smoke sensor, temperature sensor, light intensity sensor, carbon dioxide fire extinguisher, and programmable logic controller.

[0042] Specifically, in the specific embodiments of this application, the air inlet housing 12 is symmetrically provided with outer air inlet grilles 121 on both sides; the air inlet housing 12 is provided with a bottom active mechanism 2, which includes a vacuum pump 21 located on the bottom side, two filter chambers 22 located inside and symmetrically arranged, a diversion component 23 located at the top, and a sealing component 24 symmetrically arranged on both sides of the air inlet housing 12 and cooperating with the outer air inlet grilles 121. The air inlet end of the vacuum pump 21 is connected to the air inlet housing 12; the air outlet housing 13 is provided with a top active mechanism 3, which includes two manifolds 31 symmetrically arranged at the top of the electrical component box 11, an exhaust fan 32 located at the top inside the air outlet housing 13, a dustproof component 33 located at the top of the air outlet housing 13 and coaxial with the exhaust fan 32, and an elastic component 34 located inside the dustproof component 33.

[0043] The distribution box body 1 of this application has two states.

[0044] In state one: the vacuum pump 21 stops, the exhaust fan 32 starts, the sealing component 24 and the outer air intake grille 121 separate, the elastic component 34 extends, and the dustproof component 33 rises. At this time, a smooth air passage is formed inside the entire power distribution box body 1, which facilitates ventilation and heat dissipation during normal use.

[0045] In state two, the vacuum pump 21 starts, the exhaust fan 32 stops, the sealing component 24 and the outer air intake grille 121 overlap, the elastic component 34 shortens, and the dustproof component 33 descends. At this time, a seal is formed inside the entire distribution box body 1, and a certain vacuum state is formed through the vacuum pump 21, which facilitates the control of the fire.

[0046] It should be noted that the smoke sensor in this application is a high-sensitivity photoelectric sensor, installed on the top inside the electrical component box 11, which can detect the smoke generated inside the electrical component box 11 from all directions and quickly. Once the smoke concentration exceeds the set threshold, a signal is immediately sent. The temperature sensor is a high-precision thermistor sensor, which is evenly distributed around the electrical components to monitor the temperature changes of each component in real time and ensure timely warning when the temperature rises abnormally. The light intensity sensor is installed at each corner inside the electrical component box 11 to detect the light conditions inside the box.

[0047] It should be further noted that the electrical component box 11 itself adopts a sealed design. A rubber sealing strip is installed between the box door and the box body to achieve the seal. The rubber sealing strip is made of high-quality EPDM rubber, which has excellent aging resistance, weather resistance, chemical corrosion resistance, and good elasticity and sealing performance. It can tightly fit the contact surface of the box door and the box body, effectively preventing external substances such as air, dust, and moisture from entering the distribution box. When the box door is closed, a certain pressure is applied to the rubber sealing strip through the clamping device around the box door, such as a stainless steel clamping handle, causing the sealing strip to elastically deform and fill the tiny gaps between the box door and the box body, thereby forming a good sealing effect and achieving a protection level of IP65 or higher. This ensures the stability of the internal environment of the electrical component box 11 and the safe operation of the electrical components. In addition, at some critical inlet and outlet holes, sealant is used for further sealing. The sealant used is silicone sealant, which has good adhesion, water resistance, and high temperature resistance. It can form a strong sealing layer at the gaps, preventing moisture and dust from entering the electrical component box 11 through the gaps between the cables and the holes.

[0048] The programmable logic controller (PLC) is the core of the control device. It is connected to the smoke sensor, temperature sensor and light intensity sensor through the communication interface and receives the signals fed back by the sensor in real time. When the data detected by the sensor exceeds the normal range, or when the light intensity sensor detects an abnormal change in light intensity (the brightness is different when there is no open flame in the electrical component box 11), the sensor transmits the signal to the PLC.

[0049] The PLC has a pre-programmed fire detection logic that comprehensively analyzes and processes received sensor signals. First, the PLC filters the sensor data to remove interference and ensure accuracy. Then, based on preset alarm thresholds and logic rules, it determines whether a fire risk exists. If the determination indicates a fire risk, the PLC immediately issues control commands. These commands, via output interfaces and relay contact signals, control actuators on the power supply line of the distribution box 1, including circuit breakers, sealing components 24, vacuum pump 21, and carbon dioxide fire extinguishers. For example, the circuit breaker is controlled to cut off the power supply to prevent further fire spread; the sealing components 24 are activated to seal the distribution box 1; the vacuum pump 21 is controlled to begin evacuating the box, reducing the oxygen content; and when an open flame occurs, the carbon dioxide fire extinguisher is activated to extinguish the fire. Simultaneously, the PLC also uploads fire alarm information to a remote monitoring center via a communication module, such as an Ethernet module, so that maintenance personnel can promptly understand the situation and take further action.

[0050] The carbon dioxide fire extinguisher is installed on one side inside the electrical component box 11, near the bottom of the electrical component installation area. The installation position ensures that when the fire extinguishing device is activated, its nozzle can be directly aimed at the core area inside the electrical component box 11, so that the carbon dioxide gas can quickly and evenly cover the parts where a fire may occur, thereby improving the fire extinguishing effect.

[0051] When an open flame is detected inside the electrical component box 11, and the fire risk is determined to be high enough to require the activation of the fire extinguishing device, the PLC sends an activation signal to the carbon dioxide fire extinguisher to initiate the fire extinguishing operation.

[0052] As shown in Figures 1 and 4-6, the air inlet housing 12 has a U-shaped structure with the opening facing downwards. It has symmetrical chambers on both sides for placing filter chambers 22. A vacuum pump 21 is installed in the lower middle part and exposed to the outside. The air inlet end of the vacuum pump 21 is connected to the middle position of the air inlet housing 12. An inner air inlet grille 122 is also provided on the side where the chambers holding the filter chambers 22 are close to each other. The inner air inlet grille 122 makes the entire U-shaped air inlet housing 12 connected.

[0053] It should be noted that the vacuum pump 21 is placed below the inlet housing 12, which can reduce the impact of the vibration generated by the vacuum pump 21 during operation on the inlet housing 12 and the electrical component housing 11.

[0054] As shown in Figures 1, 3-5, and 8-10, the exhaust housing 13 includes a lower intake chamber 131 and an upper exhaust chamber 132. The lower intake chamber 131 is divided into two symmetrical chambers, while the upper exhaust chamber 132 is a single, unobstructed chamber. Multiple lower intake channels 133 are provided at the bottom of the lower intake chamber 131, which is connected to the electrical component box 11 via these channels. The upper exhaust chamber 132 and the lower intake chamber 131 are connected via... Two rotating and fitted manifolds 31 are connected. Multiple upper exhaust holes 134 are evenly arranged around the top of the upper exhaust chamber 132. The exhaust fan 32 is located at the axis of the multiple upper exhaust holes 134 and at the top of the upper exhaust chamber 132. The dustproof component 33 is coaxially arranged around the multiple upper exhaust holes 134 and covers the multiple upper exhaust holes 134. The elastic component 34 is coaxially arranged at the axis of the multiple upper exhaust holes 134 and at the top of the upper exhaust chamber 132.

[0055] Understandably, during normal ventilation and heat dissipation, the vacuum pump 21 is turned off, the sealing plate 242 is detached from the outer air intake grille 121, and the exhaust fan 32 is turned on. During the operation of the exhaust fan 32, a negative pressure is formed in the upper exhaust chamber 132. Therefore, along the unobstructed air passage, external airflow will be drawn in from the outer air intake grille 121. After being purified by the filter material in the filter chamber 22, the airflow passes through the diversion assembly 23 and enters the electrical component box 11. After carrying the heat emitted by the electrical components, it enters the upper exhaust chamber 132 from the manifold 31 and is finally discharged to the outside from the dustproof assembly 33.

[0056] Furthermore, the filter chamber 22 is slidably and sealed to the air inlet housing 12, and a collection chamber 221 is slidably and sealed on the bottom side of the filter chamber 22. Multiple chip discharge grooves 222 for connecting the collection chamber 221 are evenly arranged at the bottom of the filter chamber 22, and multiple air inlet grooves 223 adapted to the outer air inlet grille 121 are arranged on one side of the filter chamber 22.

[0057] Understandably, the detachable design of the filter chamber 22 and the collection chamber 221 on the air intake end box 12 makes it easy to remove them and clean the dirt inside.

[0058] The diversion assembly 23 includes an annular chamber 231 embedded in the top center of the air inlet housing 12. The outer wall of the annular chamber 231 is an annular baffle 232. The top of the annular baffle 232 extends to the bottom of the electrical component box 11 and is uniformly provided with multiple air outlets 233 in the circumferential direction. A top plate 234 is fixed to the top of the annular baffle 232. A diversion component 235 is rotatably embedded in the inner side of the annular chamber 231. Multiple arc-shaped channels are uniformly provided in the circumferential direction inside the diversion component 235. The arc-shaped channels are arc-shaped in both the axial and radial directions, and the multiple arc-shaped channels extend outward from the bottom to the top. The bottom of the arc-shaped channel is located at the bottom of the diversion component 235, and the top of the arc-shaped channel is located at the side wall of the diversion component 235.

[0059] Understandably, after being purified by the filter chamber 22, the airflow will pass through the inner air intake grille 122 and enter the bottom side of the diversion assembly 23. It will then enter from the bottom side along multiple arc-shaped channels on the diversion assembly 23 and exit from the top side of the channel, i.e., the side wall of the diversion component 235. During this process, the airflow will provide tangential force to the diversion component 235 and drive it to rotate. This will make the gas entering the annular chamber 231 evenly distributed and finally discharged from multiple air outlets 233 into the bottom of the electrical component box 11. Under the negative pressure formed by the exhaust fan 32 above, the airflow carries the heat in the electrical component box 11, flows upward, and enters the outlet box 13.

[0060] It should be noted that the sealing assembly 24 includes a telescopic member 241 fixed to the side wall of the electrical component box 11, and a sealing plate 242 that is slidably attached to the side wall of the air intake box 12. The sealing plate 242 completely covers the outer air intake grille 121, and the sealing plate 242 and the piston end of the telescopic member 241 are fixedly connected.

[0061] It is understood that in the specific embodiments of this application, the extension and retraction of the piston end of the telescopic member 241 is controlled by the PLC, so that the sealing plate 242 and the outer air intake grille 121 can be separated or overlapped. When separated, the outer air intake grille 121 can be ventilated normally, and when overlapped, the outer air intake grille 121 is sealed.

[0062] It should be noted that, in the specific embodiments of this application, multiple arc-shaped channels are uniformly arranged in the inner circumference of the manifold 31. The arc-shaped channels are arc-shaped in both the axial and radial directions, and the multiple arc-shaped channels converge inward from the bottom to the top. The bottom of the arc-shaped channel is located on the outer wall of the manifold 31, and the top of the arc-shaped channel is located on the inner wall of the manifold 31.

[0063] Understandably, the arc-shaped channel design inside the manifold 31 will cause the airflow entering it to disperse outwards after it is discharged, thus preventing the airflow discharged from it from interfering with the normal exhaust effect of the exhaust fan 32.

[0064] As shown in Figures 8-10, the dustproof component 33 includes an annular enclosure 331. A lifting cover 333 is coaxially and slidably fitted on the annular enclosure 331. The lifting cover 333 and the elastic component 34 are coaxially fixed. The change in length of the elastic component 34 prevents the lifting cover 333 from detaching from the annular enclosure 331. Multiple exhaust holes 332 are evenly arranged around the top of the annular enclosure 331.

[0065] The elastic component 34 includes a fixed chamber 341 fixed to the top of the air outlet box 13. A slide rod 342 is coaxially slidably inserted into the fixed chamber 341. One end of the slide rod 342 extending out of the fixed chamber 341 is fixed to the lifting cover 333. Both ends of the slide rod 342 are coaxially fixed with annular flanges. A spring 343 abuts between the end of the slide rod 342 inserted into the fixed chamber 341 and the inner top of the fixed chamber 341. The spring 343 is sleeved on the slide rod 342.

[0066] Therefore, when the exhaust fan 32 is not venting exhaust, the lifting cover 333 will descend to the lowest point of the annular enclosure 331 due to the elastic force of the spring 343. That is, the lifting cover 333 will completely block the multiple exhaust holes 332 at the top of the annular enclosure 331, forming a closed state above the upper exhaust hole 134. When the exhaust fan 32 is running, the air pressure inside the lifting cover 333 will increase, which will force the lifting cover 333 to move the sliding rod 342 upward. At this time, the spring 343 is compressed and deformed, and the multiple exhaust holes 332 at the top of the annular enclosure 331 gradually leak out, and the gas inside the lifting cover 333 can be discharged from the exhaust holes 332.

[0067] It should be noted that the vacuum control logic in this application uses the smoke sensor and light intensity sensor built into the electrical component box 11 as the core triggering elements. Taking the smoke sensor as an example, when the smoke sensor detects that the smoke concentration inside the electrical component box 11 reaches the set threshold (the light intensity sensor detects changes in light intensity inside the electrical component box 11, and its detection logic is the same as that of the smoke sensor; both detections will trigger the vacuum action if their values ​​reach the set threshold), such as 5%obs / m (which can be adjusted within the range of 3%-8%obs / m depending on the actual situation), it indicates that there may be a fire hazard inside the distribution box. At this time, the smoke sensor immediately transmits a signal to the PLC. After receiving the signal from the smoke sensor, the PLC first controls the electrical component box 11... The circuit breaker on the incoming power line quickly cuts off the power supply (not the power required by the relevant control device in this application) to prevent the electrical fault from spreading further. At the same time, it sends a command to the sealing component 24 to start the sealing action. Simultaneously, the exhaust fan 32 stops operating. After the sealing component 24 completes the sealing operation, the PLC sends a start signal to the vacuum pump 21, and the vacuum pump 21 starts working to perform a vacuuming operation inside the distribution box body 1. During the vacuuming process, the PLC receives vacuum level data fed back by the vacuum level sensor in real time. When the vacuum level reaches the set target value, such as -0.08MPa (which can be adjusted between -0.07MPa and -0.09MPa according to the actual fire extinguishing requirements), the PLC controls the vacuum pump 21 to stop working, maintaining a low-oxygen environment inside the distribution box body 1 to suppress the occurrence and development of the fire.

[0068] In summary, the design of this application can achieve normal ventilation and heat dissipation inside the distribution box body 1, and after detecting data indicating a fire, switch the closed state of the distribution box body 1 to form a seal and perform a vacuuming action to reduce the oxygen content inside the distribution box body 1, thereby further suppressing the occurrence or development of a fire.

[0069] In related technologies, this intelligent integrated distribution box with fire protection system functions has a problem: the airflow enters the distribution box body 1 through the lower side of the entire device, so the airflow will carry a relatively large amount of impurities (dust, moisture, small insects, etc.), which will put a large load on the filter material in the filter chamber 22, increase the workload of maintenance personnel, and require frequent cleaning and replacement of the internal filter material.

[0070] Example 2: According to some embodiments of this application, as shown in Figures 12-14, the filter chamber 22 is provided with multiple parallel independent chambers. Each independent chamber is provided with a filter structure 4. The filter structure 4 includes a positioning block 41 embedded in the independent chamber. A filter cylinder 42 is coaxially rotatably embedded in the positioning block 41. A flow guide 43 is axially slidably inserted into the filter cylinder 42. Filter cotton is stuffed between the flow guide 43 and the filter cylinder 42. It should be noted that in specific embodiments of this application, granular filter material can also be stuffed between the flow guide 43 and the filter cylinder 42. Of course, in this case, mesh plates need to be set at both ends of the filter cylinder 42 to prevent the granular filter material from falling out of the filter cylinder 42.

[0071] One end of the positioning block 41 abuts against the end of the filter chamber 22 facing the outer air intake grille 121, and a gap is left between the other end of the positioning block 41 and the end of the filter chamber 22 away from the outer air intake grille 121, so that the airflow entering the filter structure 4 can be discharged from here.

[0072] Specifically, the positioning block 41 has a through mounting cavity 411 along its length, the filter cartridge 42 is coaxially rotatably embedded in the mounting cavity 411, and the bottom end of the positioning block 41 has a drain trough 412 along its length, which is connected to the mounting cavity 411.

[0073] It should be noted that the sewage discharge trough 412 and the chip discharge trough 222 correspond to each other, so it can be understood that the installation cavity 411 and the collection chamber 221 below are connected.

[0074] Furthermore, the top and bottom ends of the filter cylinder 42 are open, and multiple filter holes 421 are evenly arranged on the side wall of the filter cylinder 42.

[0075] The flow guide 43 includes a shaft 431 coaxially disposed inside the filter cylinder 42, and a flow guide 432 is fixedly sleeved on the shaft 431. The flow guide 432 is axially slidably inserted into the filter cylinder 42. The flow guide 432 is spirally arranged. It can be understood that the flow guide 432 can and can only be axially displaced within the filter cylinder 42.

[0076] Therefore, it can be understood that after the airflow enters the filter cartridge 42, it will be affected by the guide vane 432 and flow along the spiral channel between the guide vane 432 and the inner wall of the filter cartridge 42. During this process, the airflow will generate a certain tangential force on the guide vane 432 and give it rotational potential energy. As the airflow continues to flow, the entire filter cartridge 42 will rotate in the mounting cavity 411. This will cause the filter material (filter cotton) inside to have a certain centrifugal force while filtering the airflow. The presence of centrifugal force will cause the intercepted dirt to be thrown towards the inner wall of the filter cartridge 42. The dirt can be thrown out from the side wall of the filter cartridge 42 and enter the collection chamber 221 below through the drain groove 412 located on the bottom side of the inner wall of the mounting cavity 411. This continuous rotation will enable the filter cartridge 42 to achieve a certain degree of self-cleaning effect, which can extend the maintenance cycle, improve the filtration effect of the airflow inside the filter cartridge 42, and reduce the workload of maintenance personnel.

[0077] In related technologies, the intelligent integrated distribution box with fire protection system functions has an exhaust end designed on the top of the entire distribution box body 1. Therefore, its surroundings are affected by the natural environment, resulting in complex situations such as dust accumulation, water accumulation, and fallen leaves. Although the lifting cover 333 can achieve lifting and lowering and can close the exhaust hole 332 when not venting, once a lot of dirt accumulates on the surroundings, it may affect the descent range or the smoothness of the lifting cover 333.

[0078] According to some embodiments of this application, as shown in Figures 15 and 16, a plurality of auxiliary structures 5 are uniformly arranged circumferentially on the outer wall of the lifting cover 333. The auxiliary structures 5 include radially arranged guide strips 51 and axially arranged fixing strips 52.

[0079] The guide strip 51 is arranged in an arc shape along the radial direction, and the fixing strip 52 is fixed to the outer wall of the lifting cover 333.

[0080] It should be noted that the bottom end of the guide strip 51 extends out of the bottom end of the lifting cover 333 to facilitate airflow impact.

[0081] Therefore, in practical use, when airflow is discharged from the exhaust port 332, some of the airflow will impact the arc-shaped guide strip 51, providing it with rotational kinetic energy. After multiple guide strips 51 are impacted by the airflow, they will drive the lifting cover 333 to rotate. It can be understood that the rotation of the lifting cover 333 will generate centrifugal force on its top and side walls, reducing the possibility of dirt on it. Secondly, since the bottom end of the guide strip 51 extends beyond the bottom end of the lifting cover 333, the airflow will change direction due to the action of the guide strip 51 after being discharged from the exhaust port 332. The rotating lifting cover 333 will cause the airflow to radiate evenly across the top of the entire exhaust box 13. In this way, the airflow will further remove dirt on the top side of the exhaust box 13, thus reducing the possible impact on the lifting cover 333, ensuring its normal lifting action on the ring enclosure 331, and improving the usage effect of the entire distribution box 1 in both usage states.

[0082] It should be noted that the specific models and specifications of the distribution box body 1, vacuum pump 21, telescopic component 241, exhaust fan 32 and spring 343 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0083] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An intelligent integrated distribution box with fire protection system functions, comprising a distribution box body, the distribution box body including a centrally located electrical component box, a bottom-mounted air inlet box, and a top-mounted air outlet box, wherein the electrical component box houses a smoke sensor, a temperature sensor, a light intensity sensor, a carbon dioxide fire extinguisher, and a programmable logic controller, characterized in that: The air inlet housing has symmetrically arranged outer air inlet grilles on both sides; the air inlet housing has a bottom active mechanism, which includes a vacuum pump located at the bottom, two filter chambers located inside and symmetrically arranged, a flow splitter assembly located at the top, and sealing assemblies symmetrically arranged on both sides of the air inlet housing and cooperating with the outer air inlet grilles. The air inlet end of the vacuum pump is connected to the air inlet housing; the air outlet housing has a top active mechanism, which includes two manifolds symmetrically arranged at the top of the electrical component box. The system comprises: an exhaust fan located at the top of the outlet housing; a dustproof assembly located at the top of the outlet housing and coaxial with the exhaust fan; and an elastic component located within the dustproof assembly. In state one, the vacuum pump stops, the exhaust fan starts, the sealing assembly separates from the outer air intake grille, the elastic component extends, and the dustproof assembly rises, thus forming a clear air passage within the entire electrical distribution box. In state two, the vacuum pump starts, the exhaust fan stops, the sealing assembly overlaps with the outer air intake grille, and the elastic component shortens. The dustproof component descends, at which point a seal is formed within the entire distribution box, and a certain vacuum state is created through the vacuum pump. The dustproof component includes an annular enclosure, on which a lifting cover is coaxially and slidably fitted. The lifting cover and the elastic component are coaxially and fixedly connected. The length change of the elastic component ensures that the lifting cover will not detach from the annular enclosure. Multiple exhaust holes are evenly distributed circumferentially at the top of the annular enclosure. The elastic component includes a fixed chamber fixed to the top of the exhaust end box, within which a sliding rod is coaxially and slidably inserted. One end of the slide rod extending out of the fixed compartment is fixedly connected to the lifting cover. Both ends of the slide rod are coaxially fixed with annular flanges. A spring abuts between the end of the slide rod inserted into the fixed compartment and the inner top of the fixed compartment, and the spring is sleeved on the slide rod. Multiple auxiliary structures are evenly arranged circumferentially on the outer wall of the lifting cover. The auxiliary structures include radially arranged guide strips and axially arranged fixing strips. The guide strips are arranged in an arc shape along the radial direction, and the fixing strips are fixedly connected to the outer wall of the lifting cover. The bottom end of the guide strips extends out of the bottom end of the lifting cover.

2. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The air inlet housing has a U-shaped structure with an opening facing downwards. It has symmetrical chambers on both sides for placing the filter chambers. The vacuum pump is located in the lower middle part of the chamber and exposed to the outside. The air inlet of the vacuum pump is connected to the middle part of the air inlet housing. An inner air inlet grille is also provided on the side where the chambers holding the filter chambers are close to each other. The inner air inlet grille makes the entire U-shaped air inlet housing form a continuous structure.

3. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The exhaust housing includes a lower air intake chamber and an upper exhaust chamber. The lower air intake chamber is divided into two symmetrical chambers, while the upper exhaust chamber is a single, unobstructed chamber. The lower air intake chamber has multiple lower air intake channels at its bottom and is connected to the electrical component box via these channels. The upper exhaust chamber and the lower air intake chamber are connected via two rotatably mounted manifolds. The upper exhaust chamber has multiple upper exhaust holes evenly distributed around its top circumference. An exhaust fan is positioned at the axis of the multiple upper exhaust holes and located at the top of the upper exhaust chamber. A dustproof component is coaxially positioned around and covers the multiple upper exhaust holes. An elastic component is coaxially positioned at the axis of the multiple upper exhaust holes and located at the top of the upper exhaust chamber.

4. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The filter chamber is slidably and sealed to the air inlet housing. A collection chamber is slidably and sealed on the bottom side of the filter chamber. Multiple chip removal grooves for connecting the collection chamber are evenly arranged at the bottom of the filter chamber. Multiple air inlet grooves adapted to the outer air inlet grille are arranged on one side of the filter chamber.

5. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The diversion assembly includes an annular chamber embedded in the center of the top of the air inlet housing. The outer wall of the annular chamber is an annular baffle. The top of the annular baffle extends to the bottom of the electrical component box and has multiple air outlets evenly arranged circumferentially. A top plate is fixed to the top of the annular baffle. A diversion component is rotatably embedded inside the annular chamber. Multiple arc-shaped channels are evenly arranged circumferentially inside the diversion component. The arc-shaped channels are arc-shaped in both the axial and radial directions, and the multiple arc-shaped channels extend outward from the bottom to the top. The bottom of the arc-shaped channel is located at the bottom of the diversion component, and the top of the arc-shaped channel is located at the side wall of the diversion component.

6. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The sealing assembly includes a telescopic member fixed to the side wall of the electrical component box, and a sealing plate that is slidably fitted to the side wall of the air intake box. The sealing plate completely covers the outer air intake grille, and the sealing plate and the piston end of the telescopic member are fixedly connected.

7. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The manifold has multiple arc-shaped channels evenly arranged on its inner circumference. These arc-shaped channels are arc-shaped in both the axial and radial directions, and they converge inward from the bottom to the top. The bottom of the arc-shaped channel is located on the outer wall of the manifold, and the top of the arc-shaped channel is located on the inner wall of the manifold.

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