Intelligent comprehensive distribution box with fire extinguishing system function

Abstract

The invention provides an intelligent comprehensive distribution box with a fire extinguishing system function, and relates to the technical field of distribution boxes. The intelligent comprehensive distribution box with the fire extinguishing system function comprises a distribution box body, the distribution box body comprises an electrical element box, an air inlet end box body and an air outlet end box body, the air inlet end box body is provided with a bottom end driving mechanism, and the bottom end driving mechanism comprises a vacuum pump, two filtering cabins, a shunting assembly and a plugging assembly. A top end driving mechanism is arranged on the air outlet end box body; the top end driving mechanism comprises two confluence pieces, an exhaust fan, a dustproof assembly and an elastic assembly; by using the vacuum pump, the exhaust fan and the plugging assembly, a smooth air channel can be formed in the distribution box body for ventilation and heat dissipation in normal use, and a closed and vacuum state can be formed in the distribution box body for reducing oxygen required by open fire so as to reduce the open fire forming probability.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of distribution box, in particular to an intelligent comprehensive distribution box with a fire-fighting system. BACKGROUND

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

[0003] During operation, distribution boxes are prone to fire due to electrical faults, overloads, short circuits and other reasons. Once a fire occurs, not only will it cause power supply interruption and affect normal production and living order, but also may cause serious property loss and casualties.

[0004] Therefore, having a reliable fire-fighting system function becomes the key to ensuring the safety of intelligent comprehensive distribution boxes. It can take effective fire-fighting measures at the initial stage of fire to extinguish the fire in its infancy, thereby minimizing the harm caused by fire and providing a solid guarantee for the safe and stable operation of the power system. SUMMARY

[0005] The application aims to at least solve one of the technical problems existing in the prior art. To this end, the application provides an intelligent comprehensive distribution box with a fire-fighting system function, comprising a distribution box body, the distribution box body comprising a centrally designed electrical element box, a bottom-end designed air inlet end box body, and a top-end designed air outlet end box body, the electrical element box being internally provided with a smoke sensor, a temperature sensor, a light intensity sensor, a carbon dioxide fire extinguisher, and a programmable logic controller, and the air inlet end box body being symmetrically provided with an outer air inlet grille on both sides; the air inlet end box body is provided with a bottom-end active mechanism, the bottom-end active mechanism comprising a vacuum pump located at the bottom side, two filter cabins symmetrically located inside, a shunt component located at the top end, and a plugging component symmetrically located on both sides of the air inlet end box body and matched with the outer air inlet grille, and the air inlet end of the vacuum pump being communicated with the air inlet end box body; the air outlet end box body is provided with a top-end active mechanism, the top-end active mechanism comprising two converging components symmetrically located at the top end of the electrical element box, an exhaust fan provided at the top inside of the air outlet end box body, a dustproof component provided at the top end of the air outlet end box body and coaxial with the exhaust fan, and an elastic component provided in the dustproof component; state one, the vacuum pump is stopped, the exhaust fan is started, the plugging component and the outer air inlet grille are separated, the elastic component is elongated, and the dustproof component is raised, at this time, a smooth air passage is formed in the entire distribution box body; state two, the vacuum pump is started, the exhaust fan is stopped, the plugging component and the outer air inlet grille are overlapped, the elastic component is shortened, and the dustproof component is lowered, at this time, a sealed state is formed in the entire distribution box body, and a certain vacuum state is formed through the vacuum pump.

[0006] Preferably, the air inlet end box body is in a open-down-shaped structure, symmetrically provided with cabin bodies on both sides for placing the filter cabins, the vacuum pump being provided below the middle and exposed to the outside, the air inlet end of the vacuum pump being communicated with the middle position of the air inlet end box body, and the cabin bodies where the filter cabins are placed being further provided with an inner air inlet grille on the side close to each other, the inner air inlet grille making the air inlet end box body of the entire open-down-shaped structure form a connected state.

[0007] Preferably, the air outlet end box comprises a lower air inlet chamber and an upper air outlet chamber, the lower air inlet chamber is divided into two symmetrical chambers, the upper air outlet chamber is a smooth chamber, the lower air inlet chamber is provided with a plurality of lower air inlet through slots at the bottom end, the lower air inlet chamber is communicated with the electrical element box through a plurality of lower air inlet through slots, the upper air outlet chamber and the lower air inlet chamber are communicated through two rotating embedded current collectors, the upper air outlet chamber is provided with a plurality of upper air outlet holes at the top end, the exhaust fan is arranged at the axis of the plurality of upper air outlet holes and located at the top of the upper air outlet chamber, the dustproof assembly is coaxially arranged at the periphery of the plurality of upper air outlet holes and covers the plurality of upper air outlet holes, and the elastic assembly is coaxially arranged at the axis of the plurality of upper air outlet holes and located at the top end of the upper air outlet chamber.

[0008] Preferably, the filter chamber is sealingly and slidingly inserted into the air inlet end box, the bottom side of the filter chamber is sealingly and slidingly provided with a collection chamber, the bottom end of the filter chamber is uniformly provided with a plurality of chip removal grooves for communicating with the collection chamber, and one side of the filter chamber is provided with a plurality of air inlet grooves matched with the outer air inlet grilles.

[0009] Preferably, the shunt assembly comprises an annular chamber embedded in the center of the top of the air inlet end box, the outer wall of the annular chamber is an annular baffle, the top end of the annular baffle extends to the bottom of the electrical element box and is uniformly provided with a plurality of air outlet holes in the circumferential direction, the top end of the annular baffle is fixedly connected with a top plate, and a shunt member is rotatably embedded in the inner side of the annular chamber, wherein the inner circumferential direction of the shunt member is uniformly provided with a plurality of arc-shaped channels, the arc-shaped channels are arc-shaped in the axial and radial directions, and the plurality of arc-shaped channels extend outward from the bottom end to the top end, the bottom end of the arc-shaped channel is located at the bottom end of the shunt member, and the top end of the arc-shaped channel is located at the side wall of the shunt member.

[0010] Preferably, the sealing assembly comprises a telescopic member fixedly connected to the side wall of the electrical element box, and a sealing plate sealingly and slidingly attached to the side wall of the air inlet end box, the sealing plate completely covers the outer air inlet grilles, and the sealing plate and the piston end of the telescopic member are fixedly connected.

[0011] Preferably, the inner circumferential direction of the current collector is uniformly provided with a plurality of arc-shaped channels, the arc-shaped channels are arc-shaped in the axial and radial directions, and the plurality of arc-shaped channels are inwardly folded from the bottom end to the top end, the bottom end of the arc-shaped channel is located at the outer wall of the current collector, and the top end of the arc-shaped channel is located at the inner wall of the current collector.

[0012] Preferably, the dustproof assembly comprises an annular enclosure, a lifting cover is coaxially and sealingly sleeved on the annular enclosure, the lifting cover and the elastic assembly are coaxially fixedly connected, and the length change of the elastic assembly makes the lifting cover not separate from the annular enclosure.

[0013] Preferably, the annular enclosure top end is uniformly provided with a plurality of exhaust holes in the circumferential direction.

[0014] Preferably, the elastic assembly comprises a fixed cabin fixedly connected to the top end of the air outlet end box, a sliding rod coaxially and slidingly inserted into the fixed cabin, one end of the sliding rod extending out of the fixed cabin and fixedly connected to the lifting cover, and annular flanges coaxially fixedly connected to both ends of the sliding rod, wherein a spring is abutted between the end of the sliding rod inserted into the fixed cabin and the inner top end of the fixed cabin, and the spring is sleeved on the sliding rod.

[0015] The present application has the following advantages: 1. The cooperation among the vacuum pump, the exhaust fan and the blocking assembly can form a smooth air passage in the power distribution box body for normal use, ventilation and heat dissipation, and can form a closed and vacuum state in the power distribution box body for reducing the oxygen required by open fire and then reducing the probability of open fire; 2. The design of bottom air inlet and top air outlet can further improve the heat dissipation of the entire power distribution box body by cooperating with the principle of hot air rising and cold air descending; 3. The filter cabin can filter impurities and moisture in the air entering the power distribution box body, improve the cleanliness of the airflow, and avoid damage to electrical components caused by impurities carried in the airflow; 4. The various sensors built in the electrical component box can form real-time monitoring of smoke, temperature and light intensity in the electrical component box, and feedback to the programmable logic controller for controlling the corresponding start state of the vacuum pump, the exhaust fan and the blocking assembly, and the use of carbon dioxide fire extinguisher.

[0016] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1 is a whole structure schematic diagram of an intelligent comprehensive power distribution box with fire-fighting system function according to an embodiment of the present application; Figure 2 is a local structure schematic diagram of an intelligent comprehensive power distribution box with fire-fighting system function according to an embodiment of the present application Figure 1 ​Figure 3 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 2 ; Figure 4 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 3 ; Figure 4 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 6 ; Figure 7 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 8 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 9 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 8 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 10 is an enlarged diagram of A in Figure 8 is an enlarged diagram of B in Figure 11 is an enlarged diagram of B in Figure 12 is a partial structure diagram of an intelligent comprehensive distribution box with fire-fighting system function according to an embodiment of the application Figure 11 is an enlarged diagram of C in Figure 13 is an enlarged diagram of C in Figure 14 is a position diagram of a filtering structure according to an embodiment of the application Figure 15 is a structure diagram of a filtering structure according to an embodiment of the application Figure 16 is a position diagram of an auxiliary structure according to an embodiment of the application Figures 1-11 is a structure diagram of an auxiliary structure according to an embodiment of the application

[0019] 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

[0020] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0021] 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.

[0022] Example 1, as Figure 1 As shown, an intelligent integrated distribution box with fire protection system function according to an embodiment of this application 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.

[0023] Specifically, in the specific embodiments of the present application, the air inlet end box body 12 is symmetrically provided with an outer air inlet grille 121 on both sides; the air inlet end box body 12 is provided with a bottom end driving mechanism 2, the bottom end driving mechanism 2 includes a vacuum pump 21 located at the bottom, two filter cabins 22 symmetrically arranged inside, a shunt assembly 23 located at the top, and a plugging assembly 24 symmetrically arranged on both sides of the air inlet end box body 12 and matched with the outer air inlet grille 121, the air inlet end of the vacuum pump 21 is communicated with the air inlet end box body 12; the air outlet end box body 13 is provided with a top end driving mechanism 3, the top end driving mechanism 3 includes two busbars 31 symmetrically arranged at the top of the electrical element box 11, an exhaust fan 32 arranged at the top of the air outlet end box body 13, a dustproof assembly 33 arranged at the top of the air outlet end box body 13 and coaxial with the exhaust fan 32, and an elastic assembly 34 arranged in the dustproof assembly 33.

[0024] The power distribution box body 1 of the present application has two states.

[0025] Among them, state one: the vacuum pump 21 is stopped, the exhaust fan 32 is started, the plugging assembly 24 and the outer air inlet grille 121 are separated, the elastic assembly 34 is elongated, and the dustproof assembly 33 is raised, at this time a smooth air passage is formed in the entire power distribution box body 1, which is convenient for ventilation and heat dissipation in the normal use process; State two, the vacuum pump 21 is started, the exhaust fan 32 is stopped, the plugging assembly 24 and the outer air inlet grille 121 overlap, the elastic assembly 34 is shortened, and the dustproof assembly 33 is lowered, at this time a sealed state is formed in the entire power distribution box body 1, and a certain vacuum state is formed through the vacuum pump 21, which is convenient for controlling the fire.

[0026] It should be noted that the smoke sensor in the present application adopts a high-sensitivity photoelectric sensor, which is installed at the top inside the electrical element box 11 and can detect the smoke generated in the electrical element box 11 in all directions and quickly, and immediately sends a signal once the smoke concentration exceeds the set threshold; the temperature sensor selects a high-precision thermistor sensor, which is evenly distributed around the electrical elements to monitor the temperature changes of each element in real time and ensure timely warning when the temperature abnormally rises; the light intensity sensor is installed at each corner inside the electrical element box 11 to detect the lighting conditions in the box.

[0027] Further need to explain is, electrical component box 11 itself adopts sealed design, the box door and the box body between installing rubber sealing strip to realize sealing, rubber sealing strip adopts high-quality three-ethylene propylene rubber material, this rubber has excellent anti-aging, weather resistance, chemical corrosion resistance and good elasticity and sealing, it can tightly adhere to the contact surface of the box door and the box body, effectively prevent air, dust, moisture and other external substances into the distribution box, when the box door is closed, through the compression device around the box door, such as stainless steel compression handle, a certain pressure is applied to the rubber sealing strip, so that the sealing strip deforms elastically, filling the small gap between the box door and the box body, thereby forming a good sealing effect, reaching the protection level of IP65 or above, ensuring the stability of the internal environment of the electrical component box 11 and the safe operation of the electrical components, in addition, some key wire entry hole and wire exit hole positions are further sealed with sealant, and the sealant is silicone sealant, which has good adhesion, water resistance and high temperature resistance, and can form a firm sealing layer at the gap to prevent moisture and dust from entering the electrical component box 11 through the gap between the cable and the hole.

[0028] Among them, the programmable logic controller (PLC) is the core of the control device, which is connected with the smoke sensor, temperature sensor and light intensity sensor through the communication interface, and receives the signals feedback by the sensors in real time. When the data detected by the sensor exceeds the normal range, or the light intensity sensor detects an abnormal mutation of light intensity (the brightness is different when there is an open flame in the electrical component box 11), the sensor will transmit the signal to the PLC.

[0029] The PLC internally prewrites a fire judgment logic program, which comprehensively analyzes and processes the received sensor signals. First, the PLC will filter the sensor data to remove interference signals and ensure data accuracy. Then, according to the preset alarm threshold and logic rules, it judges whether there is a fire risk. If the judgment result is that there is a fire risk, the PLC will immediately issue control instructions. These instructions are in the form of relay contact signals through the output interface, respectively controlling the circuit breaker on the power line of the distribution box body 1, the plugging assembly 24, the vacuum pump 21 and the carbon dioxide extinguisher, etc. For example, controlling the circuit breaker to cut off the power supply to prevent the fire from further expanding; controlling the plugging assembly 24 to start sealing the distribution box body 1; controlling the vacuum pump 21 to start vacuuming to reduce the oxygen content in the box; when an open flame occurs, controlling the carbon dioxide extinguisher to start and perform fire extinguishing operation. At the same time, the PLC also uploads the fire alarm information to the remote monitoring center through the communication module, such as the Ethernet module, so that the operation and maintenance personnel can timely understand the situation and take further measures.

[0030] The carbon dioxide fire extinguisher is installed on one side of the electrical component box 11, close to the lower part of the electrical component installation area, and the installation position ensures that the nozzle of the extinguishing device can directly aim at the core area inside the electrical component box 11 when starting, so that the carbon dioxide gas can quickly and uniformly cover the fire occurrence position, thereby improving the extinguishing effect.

[0031] When it is detected that an open fire occurs inside the electrical component box 11, and it is judged that the fire risk reaches the degree that the extinguishing device needs to be started, the PLC sends a starting signal to the carbon dioxide fire extinguisher to perform the extinguishing operation.

[0032] As shown in Figures 4-6 , Figure 1 , the air inlet end box 12 is in a open-downwardly shaped structure, and symmetrical cabin bodies are arranged on both sides for placing the filter cabin 22. A vacuum pump 21 is arranged at the lower middle part and the exposed part outside. The air inlet end of the vacuum pump 21 is in communication with the middle position of the air inlet end box 12. The cabin bodies where the filter cabin 22 is placed are arranged with an inner air inlet grille 122 on one side close to each other. The inner air inlet grille 122 makes the air inlet end box 12 of the entire shaped structure form a communication state.

[0033] It should be noted that the vacuum pump 21 is placed below the air inlet end box 12, which can reduce the influence of the vibration generated during the operation of the vacuum pump 21 on the air inlet end box 12 and the electrical component box 11.

[0034] As shown in Figures 3-5 , Figures 8-10 , Figures 8-10 , the air outlet end box 13 includes a lower air inlet cabin 131 and an upper exhaust cabin 132. The lower air inlet cabin 131 is divided into two symmetrical cabin bodies, and the upper exhaust cabin 132 is a smooth cabin body. The lower air inlet cabin 131 is provided with a plurality of lower air inlet through slots 133 at the bottom end. The lower air inlet cabin 131 is in communication with the electrical component box 11 through the plurality of lower air inlet through slots 133. The upper exhaust cabin 132 and the lower air inlet cabin 131 are in communication through two rotating embedded converging pieces 31. The upper exhaust cabin 132 is provided with a plurality of upper exhaust holes 134 at the top end in a uniform circumferential manner. An exhaust fan 32 is arranged at the axis of the plurality of upper exhaust holes 134 and located at the top of the upper exhaust cabin 132. A dustproof assembly 33 is coaxially arranged at the periphery of the plurality of upper exhaust holes 134 and covers the plurality of upper exhaust holes 134. An elastic assembly 34 is coaxially arranged at the axis of the plurality of upper exhaust holes 134 and located at the top end of the upper exhaust cabin 132.

[0035] It can be understood that when the normal ventilation and heat dissipation, the vacuum pump 21 is closed, the sealing plate 242 is separated from the outer air inlet grille 121, the exhaust fan 32 is opened, and the negative pressure is formed in the upper exhaust chamber 132 during the operation of the exhaust fan 32. Therefore, the external air flow will be sucked from the outer air inlet grille 121 along the unobstructed air passage, purified by the filter in the filter chamber 22, and then enters the inside of the electrical element box 11 through the shunt assembly 23. After carrying the heat emitted by the electrical elements, it enters the upper exhaust chamber 132 from the bus member 31, and is finally discharged to the outside from the dustproof assembly 33.

[0036] Further, the filter chamber 22 is sealingly and slidingly inserted into the air inlet end box 12, and the bottom side of the filter chamber 22 is sealingly and slidingly provided with a collection chamber 221. The bottom end of the filter chamber 22 is uniformly provided with a plurality of chip removal grooves 222 for communicating with the collection chamber 221. One side of the filter chamber 22 is provided with a plurality of air inlet grooves 223 adapted to the outer air inlet grille 121.

[0037] It can be understood that the detachable design of the filter chamber 22 and the collection chamber 221 on the air inlet end box 12 facilitates the removal of the two and the cleaning of the internal dirt.

[0038] The shunt assembly 23 includes an annular chamber 231 embedded in the top center of the air inlet end box 12. The outer wall of the annular chamber 231 is an annular baffle 232, the top end of the annular baffle 232 extends to the bottom of the electrical element box 11 and is uniformly provided with a plurality of air outlet holes 233 in the circumferential direction. The top end of the annular baffle 232 is fixedly connected with a top plate 234. A shunt member 235 is rotatably embedded in the inner side of the annular chamber 231. The inner circumferential side of the shunt member 235 is uniformly provided with a plurality of arc-shaped passages. The arc-shaped passages are arc-shaped in the axial and radial directions, and the plurality of arc-shaped passages extend outward from the bottom end to the top end. The bottom end of the arc-shaped passage is located at the bottom end of the shunt member 235, and the top end of the arc-shaped passage is located at the side wall of the shunt member 235.

[0039] It can be understood that after the airflow is purified by the filter chamber 22, it will enter the bottom side of the shunt assembly 23, and then enter from the bottom side along the plurality of arc-shaped passages on the shunt assembly 23, and then escape from the top side of the passage, i.e. the side wall of the shunt member 235. During this process, the airflow will provide a tangential force to the shunt member 235 and drive it to rotate. In this way, the gas entering the annular chamber 231 will be uniformly distributed, and finally discharged from the plurality of air outlet holes 233 into the bottom end of the electrical element box 11. Under the action of the negative pressure formed by the upper exhaust fan 32, the airflow carries the heat in the electrical element box 11, flows upward, and enters the air outlet end box 13.

[0040] It should be noted that the blocking assembly 24 includes a telescopic part 241 fixed to the side wall of the electrical component box 11, and a sealing plate 242 sealingly and slidingly attached to the side wall of the air inlet end box 12, the sealing plate 242 completely covers the outer air inlet grille 121, and the piston end of the telescopic part 241 is fixed to the sealing plate 242.

[0041] It can be understood that in the specific embodiments of the present application, the telescopic part 241 is controlled by the PLC to change the telescopic change of the piston end, so that the sealing plate 242 and the outer air inlet grille 121 are separated or overlapped, when separated, the outer air inlet grille 121 can be normally ventilated, and when overlapped, the outer air inlet grille 121 is sealed.

[0042] It should be noted that in the specific embodiments of the present application, the inner periphery of the flow converging part 31 is uniformly provided with a plurality of arc-shaped channels, the arc-shaped channels are arc-shaped in the axial and radial directions, and the arc-shaped channels are inwardly converging from the bottom end to the top end, the bottom end of the arc-shaped channel is located at the outer wall of the flow converging part 31, and the top end of the arc-shaped channel is located at the inner wall of the flow converging part 31.

[0043] It can be understood that the design of the arc-shaped channels inside the flow converging part 31 will make the airflow entering into it form a state of escaping to the side after being discharged, so that the discharged airflow in it can avoid interfering with the normal exhaust effect of the exhaust fan 32.

[0044] As shown in Figures 12-14 The dustproof assembly 33 includes an annular enclosure 331, an annular enclosure 331 coaxially and sealingly slidingly sleeved with a lifting cover 333, the lifting cover 333 is coaxially fixed with the elastic assembly 34, the length change of the elastic assembly 34 makes the lifting cover 333 not separate from the annular enclosure 331, and a plurality of exhaust holes 332 are uniformly arranged on the top end of the annular enclosure 331 in the circumferential direction; The elastic assembly 34 includes a fixed cabin 341 fixed to the top end of the air outlet end box 13, a sliding rod 342 coaxially and slidingly inserted into the fixed cabin 341, one end of the sliding rod 342 extending out of the fixed cabin 341 is fixed to the lifting cover 333, both ends of the sliding rod 342 are coaxially fixed with annular flanges, and a spring 343 is abutted between the end of the sliding rod 342 inserted into the fixed cabin 341 and the inner top end of the fixed cabin 341, and the spring 343 is sleeved on the sliding rod 342.

[0045] Therefore, when the exhaust fan 32 does not exhaust air outward, the lifting cover 333 will be lowered to the lowest part of the annular enclosure 331 under the elastic force of the spring 343, that is, the lifting cover 333 will completely block the plurality of exhaust holes 332 at the top of the annular enclosure 331, so that a closed state is formed above the upper exhaust hole 134, and when the exhaust fan 32 operates, the inside of the lifting cover 333 will be more and more pressurized, which will force the lifting cover 333 to displace the sliding rod 342 upward, at this time, the spring 343 is deformed under compression, and the plurality of exhaust holes 332 at the top of the annular enclosure 331 gradually leak out, so that the gas inside the lifting cover 333 can be exhausted from the exhaust holes 332.

[0046] It should be noted that the control logic of the vacuumization in the present application takes the smoke sensor and the light intensity sensor built in the electrical element box 11 as the core triggering element. Taking the smoke sensor as an example, when the smoke sensor detects that the smoke concentration inside the electrical element box 11 reaches a set threshold value (the light intensity sensor detects the change of the light intensity inside the electrical element box 11, and its detection logic is consistent with that of the smoke sensor. Regardless of whose detection value reaches the set threshold value, the vacuumization action will be triggered), such as 5% obs / m (which can be adjusted within the range of 3%-8% obs / m according to 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 of the smoke sensor, the PLC first controls the circuit breaker on the incoming power line of the electrical element box 11 to quickly cut off the power supply (the power supply required by the related control device in the present application), to prevent the electrical fault from further expanding, and sends an instruction to the blocking assembly 24 to start the sealing action, and the exhaust fan 32 stops operating. After the blocking assembly 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 the vacuumization operation on the inside of the distribution box body 1. During the vacuumization process, the PLC receives the vacuum degree data fed back by the vacuum degree sensor in real time. When the vacuum degree reaches a set target value, such as -0.08 MPa (which can be adjusted between -0.07 MPa and -0.09 MPa according to the actual fire extinguishing requirement), the PLC controls the vacuum pump 21 to stop working, to maintain the low-oxygen environment inside the distribution box body 1 and inhibit the occurrence and development of the fire.

[0047] In summary, the design of the present application can realize normal ventilation and heat dissipation inside the distribution box body 1, and after detecting the data of the fire, it can switch the closed state of the distribution box body 1 to form a seal and perform the vacuumization action, to reduce the oxygen content inside the distribution box body 1 and further inhibit the occurrence or development of the fire.

[0048] In the related art, the intelligent comprehensive distribution box with a fire fighting system function firstly because the airflow enters the inlet of the distribution box body 1 below the side of the entire device, so that relatively more impurities (dust, moisture, small insects, etc.) will be carried in the entering airflow, so that a greater load will be caused to the filtering material in the filtering cabin 22, which will increase the workload of the maintenance personnel, and the internal filter material needs to be cleaned and replaced frequently.

[0049] In some embodiments according to the present application, as shown in Figure 15 The filtering cabin 22 is provided with a plurality of parallel independent cabins, and each independent cabin is provided with a filtering structure 4. The filtering structure 4 includes a positioning block 41 embedded in the independent cabin. A filter cartridge 42 is coaxially and rotationally embedded in the positioning block 41. A flow guide piece 43 is axially and slidingly inserted into the filter cartridge 42. Filter cotton is inserted between the flow guide piece 43 and the filter cartridge 42. It should be noted that in the specific embodiments of the present application, granular filter material can also be inserted between the flow guide piece 43 and the filter cartridge 42. Of course, at this time, a mesh plate needs to be provided at both ends of the filter cartridge 42 to prevent the granular filter material from falling out of the filter cartridge 42.

[0050] One end of the positioning block 41 abuts one end of the outer side air inlet grille 121 of the filtering cabin 22, and the other end of the positioning block 41 is spaced apart from the other end of the filtering cabin 22 away from the outer side air inlet grille 121, so as to facilitate the airflow entering the inside of the filtering structure 4 to be discharged from there.

[0051] Specifically, the positioning block 41 is provided with a through installation cavity 411 along the length direction, and the filter cartridge 42 is coaxially and rotationally embedded in the installation cavity 411. The bottom end of the positioning block 41 is provided with a blowdown groove 412 along the length direction, and the blowdown groove 412 is in communication with the installation cavity 411.

[0052] It should be noted that the blowdown groove 412 corresponds to the chip removal groove 222, so it can be understood that the installation cavity 411 and the collection cabin 221 below form a communication state.

[0053] Further, the filter cartridge 42 is open at the top and bottom ends, and a plurality of filter holes 421 are uniformly arranged on the side wall of the filter cartridge 42.

[0054] The flow guide piece 43 includes a shaft 431 coaxially arranged in the filter cartridge 42. A flow guide fin 432 is fixedly sleeved on the shaft 431. The flow guide fin 432 is axially and slidingly inserted into the filter cartridge 42. The flow guide fin 432 is arranged in a spiral shape. It can be understood that the flow guide fin 432 can only axially displace in the filter cartridge 42.

[0055] 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 form a certain tangential force on the guide vane 432 and make it have the potential energy of rotation. With the continuous flow of the airflow, the entire filter cartridge 42 will rotate in the mounting cavity 411. In this way, the filter material (cotton filter) in it will have a certain centrifugal force while filtering the airflow. The existence of the centrifugal force will make the intercepted dirt swing towards the inner wall of the filter cartridge 42. The inner wall of the mounting cavity 411 has and only has the dirt discharge groove 412 at the bottom side, which can make the dirt swing out of the side wall of the filter cartridge 42 and enter the lower collection cabin 221. In this way, the rotation will make the filter cartridge 42 realize a certain degree of self-cleaning effect, prolong the maintenance cycle, improve the filtering effect of the airflow inside the filter cartridge 42, and reduce the workload of the maintenance personnel.

[0056] In the related art, the intelligent comprehensive distribution box with a fire extinguishing system function. Because the exhaust end is designed at the top of the entire distribution box body 1, the side will be affected by the natural environment, causing certain dust, water, fallen leaves and other complex situations. Although the lifting cover 333 can realize lifting action and form a closed exhaust hole 332 when not exhausting, once the side is accumulated with a lot of dirt, it is likely to affect the travel or smoothness of the lifting cover 333.

[0057] In some embodiments of the present application, as shown in Figure 16 and ​ The outer wall of the lifting cover 333 is circumferentially uniformly provided with a plurality of auxiliary structures 5, which include radially arranged guide strips 51 and axially arranged fixed strips 52.

[0058] Among them, the guide strip 51 is arranged in an arc shape along the radial direction, and the fixed strip 52 is fixedly connected to the outer wall of the lifting cover 333.

[0059] It should be noted that the bottom end of the guide strip 51 extends beyond the bottom end of the lifting cover 333, which facilitates airflow impact.

[0060] Thus, in specific use, when the air flow is discharged outward at the exhaust hole 332, part of the air flow will impact on the arc-shaped guide strip 51 to provide rotational kinetic energy, and after the multiple guide strips 51 are impacted by the air flow, the lifting cover 333 will be driven to rotate. It can be understood that the rotation of the lifting cover 333 will form a centrifugal force on the top and the sidewall of the lifting cover 333, which reduces the possibility of dirt existing thereon. Secondly, because the bottom end of the guide strip 51 extends out of the bottom end of the lifting cover 333, after the air flow is discharged from the exhaust hole 332, the air flow will change direction under the action of the guide strip 51, and the rotating lifting cover 333 will make the air flow uniformly radiate at the top end of the air outlet end box 13. In this way, the air flow will further clean the dirt existing on the top side of the air outlet end box 13, so as to reduce the influence on the lifting cover 333, ensure the normal lifting action of the lifting cover 333 on the annular fence 331, and improve the use effect of the two use states of the distribution box body 1.

[0061] It should be noted that the specific model and specifications of the distribution box body 1, the vacuum pump 21, the telescopic part 241, the exhaust fan 32, and the spring 343 need to be determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the art, and therefore will not be described in detail.

[0062] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An intelligent integrated distribution box with fire protection system functions, comprising a distribution box body (1), wherein the distribution box body (1) includes a centrally located electrical component box (11), a bottom-mounted air inlet box (12), and a top-mounted air outlet box (13), wherein the electrical component box (11) 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 intake end box (12) is symmetrically provided with outer air intake grilles (121) on both sides. The air inlet housing (12) is provided with a bottom active mechanism (2). The bottom active mechanism (2) includes a vacuum pump (21) located on the bottom side, two filter chambers (22) located inside and symmetrically arranged, a flow splitting assembly (23) located at the top, and a sealing assembly (24) symmetrically arranged on both sides of the air inlet housing (12) and cooperating with the outer air inlet grille (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). The top active mechanism (3) includes two busbars (31) symmetrically arranged at the top of the electrical component box (11), an exhaust fan (32) arranged at the top inside the air outlet housing (13), a dustproof component (33) arranged at the top of the air outlet housing (13) and coaxial with the exhaust fan (32), and an elastic component (34) arranged inside the dustproof component (33). 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 electrical distribution box body (1). In state two, the vacuum pump (21) is started, the exhaust fan (32) is stopped, the sealing component (24) and the outer air intake grille (121) overlap, the elastic component (34) is shortened, and the dustproof component (33) is lowered. At this time, a seal is formed inside the entire power distribution box body (1), and a certain vacuum state is formed through the vacuum pump (21).

2. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The air inlet housing (12) has a U-shaped structure with the opening facing downwards. It has symmetrical chambers on both sides for placing the filter chamber (22). The vacuum pump (21) is located in the middle and exposed to the outside. The air inlet 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 of the filter chamber (22) are close to each other. The inner air inlet grille (122) makes the entire U-shaped air inlet housing (12) form a connected structure.

3. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, 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. The lower intake chamber (131) has multiple lower intake channels (133) at its bottom. The lower intake chamber (131) is connected to the electrical component box (11) through these multiple lower intake channels (133). The upper exhaust chamber (132) and the lower intake chamber (131) are connected by two rotating confluences. The components (31) are connected. The top of the upper exhaust chamber (132) is uniformly provided with multiple upper exhaust holes (134) in the circumferential direction. 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).

4. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The filter chamber (22) is sealed and slidably inserted into the air inlet box (12). A collection chamber (221) is sealed and slidably provided on the bottom side of the filter chamber (22). A plurality of chip discharge grooves (222) for connecting the collection chamber (221) are evenly provided at the bottom end of the filter chamber (22). A plurality of air inlet grooves (223) adapted to the outer air inlet grille (121) are provided on one side of the filter chamber (22).

5. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, 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. The top of the annular baffle (232) is fixedly connected to a top plate (234). 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).

6. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in 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 fitted to the side wall of the air intake box (12). The sealing plate (242) completely covers the outer air intake grille (121), and the piston end of the sealing plate (242) and the telescopic member (241) are fixedly connected.

7. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The manifold (31) 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 (31), and the top of the arc-shaped channel is located on the inner wall of the manifold (31).

8. The intelligent integrated distribution box with fire protection system function as described in claim 1, characterized in that, The dustproof component (33) includes an annular enclosure (331), on which a lifting cover (333) is coaxially sealed and slidably fitted. 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).

9. The intelligent integrated distribution box with fire protection system function as described in claim 8, characterized in that, The top of the annular enclosure (331) is uniformly provided with multiple exhaust holes (332).

10. The intelligent integrated distribution box with fire protection system function as described in claim 8, characterized in that, The elastic component (34) includes a fixed chamber (341) fixed to the top of the air outlet box (13). A slide rod (342) is 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).

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