Intensive bus duct with flame-retardant structure

Abstract

The invention discloses an intensive bus duct with a flame-retardant structure, and relates to the technical field of intensive bus ducts, the intensive bus duct comprises a shell, square grooves are formed in the two sides of the shell, rectangular plates are fixedly connected to the interiors of the square grooves, and accumulation grooves for impurity accumulation are formed in the sides, close to the exterior of the shell, of the rectangular plates; a sliding groove is formed in the side, close to the interior of the shell, of the rectangular plate, a plurality of filtering holes are formed in the inner wall of the accumulation groove, the accumulation groove communicates with the sliding groove through the filtering holes, air inlet grooves are formed in the upper end and the lower end of the sliding groove in a penetrating mode, and the sliding groove communicates with the shell through the air inlet grooves; a first baffle used for covering the filtering holes is arranged in the sliding groove in a sliding mode. According to the intensive bus duct with the flame-retardant structure, by arranging the accumulation groove, the sliding groove, the square box, the first baffle and other structures, the effects of filtering and automatic cleaning are achieved at the same time, impurities can be directly sucked away, and filtering holes are prevented from being blocked again.

Description

Technical Field

[0001] The invention relates to the technical field of intensive bus ducts, and in particular to a intensive bus duct with a flame retardant structure. Background Art

[0002] With the continuous advancement of national industrial development, more and more large-scale modern projects, super-high buildings and large equipment have increased the demand for electricity. As power transmission conductors, traditional cables can no longer meet the needs of use. Especially in multi-line construction, the parallel use of multiple cables has caused huge obstacles to the connection and use, seriously affecting the progress of the project. As an important line connection equipment, intensive bus duct can meet the requirements of the above large-scale projects for power transmission and distribution.

[0003] Since the dense bus duct densely encloses the conductor group composed of multiple busbars in the shell, a large amount of heat will be generated when the power is on. In addition, the existing dense bus ducts are relatively closed, and the heat generated by the conductor group is difficult to dissipate outward in time, posing a high fire safety hazard.

[0004] For example, a patent named: Intensive bus duct (patent application number: CN201911071134.1) discloses an intensive bus duct, which drives multiple groups of left fan blades, multiple groups of right fan blades, left brush groups and right brush groups to rotate by rotating left motors and right motors, thereby causing forced convection at the left heat dissipation teeth and the right heat dissipation teeth to improve the heat dissipation effect; and by setting up left and right filter screens, the entry of external impurities into the left chamber and the right chamber is reduced. At the same time, the left brush group and the right brush group will clean up the impurities attached to the left filter screen and the right filter screen, but the cleaned impurities still remain near the filter screen, and will be attached to the filter screen again due to the suction force, causing the filter screen to be blocked, affecting the ventilation and heat dissipation efficiency.

[0005] Therefore, it is necessary to propose a dense bus duct with a flame retardant structure to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a dense bus duct with a flame retardant structure to solve the problem that the cleaned impurities still remain near the filter and are attached to the filter again due to suction, causing the filter to be blocked and affecting the ventilation and heat dissipation efficiency.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dense bus duct with a flame-retardant structure, comprising a shell, square grooves are provided on both sides of the shell, a rectangular plate is fixedly connected to the inside of the square groove, a storage groove for impurities to accumulate is provided on the side of the rectangular plate close to the outside of the shell, a slide groove is provided on the side of the rectangular plate close to the inside of the shell, a plurality of filter holes are provided on the inner wall of the storage groove, the storage groove is connected with the slide groove through the filter holes, an air intake groove is provided at the upper and lower ends of the slide groove, the slide groove is connected with the shell through the air intake groove, a first baffle for covering the filter hole is slidably provided inside the slide groove, square boxes for sucking impurities inside the storage groove are provided on both sides of the shell, the square boxes are slidably fitted on the corresponding rectangular plates, and the length and width of the inner wall of the square box are respectively consistent with the length and width of the storage groove.

[0008] Preferably, the accumulation grooves and the chute are both provided in plurality, and the plurality of accumulation grooves and the plurality of chute are distributed in one-to-one correspondence.

[0009] Preferably, a through slot is formed on the first baffle plate, a second magnet is fixedly connected to the interior of the through slot, a first magnet is fixedly connected to the inner wall of the square box, the first magnet and the second magnet are attracted to each other, a support block is fixedly connected to the inner wall of the slide slot, the support block is located on the side of the first baffle plate facing away from the accumulation slot, and a first spring is fixedly connected between the support block and the first baffle plate.

[0010] Preferably, a reagent box is fixedly connected to the interior of the square groove, and a second baffle is slidably provided inside the reagent box, the second baffle divides the interior of the reagent box into a material bin and a sliding bin, and the material bin is located at one end of the reagent box close to the interior of the shell, the interior of the material bin is filled with fire extinguishing powder, and a discharge trough is provided on the reagent box, and the sliding bin is connected to the shell through the discharge trough.

[0011] Preferably, a second spring is provided inside the silo, one end of the second spring is fixedly connected to the second baffle, the other end of the second spring is fixedly connected to the inner wall of the silo, and a third magnet is fixedly connected to a side of the second baffle close to the sliding silo, and the third magnet is attracted and cooperated with the first magnet.

[0012] Preferably, an electromagnet is fixedly connected to the support block.

[0013] Preferably, a second U-shaped box is slidably provided on the outside of the shell, the second U-shaped box is connected between the two square boxes, a protrusion is fixedly connected to the outer wall of the shell, an electric push rod is fixedly connected to the protrusion, and the second U-shaped box is fixedly connected to the telescopic end of the electric push rod.

[0014] Preferably, both sides of the shell are provided with air outlet grooves, the square groove and the air outlet groove are respectively located at two ends of the shell, and a first U-shaped box is fixedly connected to the outer wall of the shell, and the first U-shaped box is connected between the two air outlet grooves.

[0015] Preferably, a suction boosting assembly is arranged between the first U-shaped box and the second U-shaped box, and the suction boosting assembly comprises a first air pipe, a second air pipe, a three-way joint, a third air pipe, a boosting box, a first solenoid valve, an air pump and a second solenoid valve. The three-way joint is connected between the first air pipe and the second air pipe, one end of the first air pipe away from the three-way joint is connected to the second U-shaped box, one end of the second air pipe away from the three-way joint is connected to the first U-shaped box, the boosting box and the air pump are both fixedly connected to the outer wall of the shell, the air inlet end of the air pump is connected to the boosting box, one end of the third air pipe is connected to the three-way joint, and the other end of the third air pipe is connected to the boosting box, the first solenoid valve is fixedly installed on the second air pipe, and the second solenoid valve is fixedly installed on the first air pipe.

[0016] Preferably, the shell is provided with a plurality of evenly distributed conductive copper bars, the outer portion of the conductive copper bars is provided with an insulating fireproof sleeve, the upper and lower ends of the shell are fixedly connected with flame-retardant blocks, and the insulating fireproof sleeve is fixedly connected between the upper and lower flame-retardant blocks.

[0017] Technical effects and advantages of the present invention: The present invention achieves the effects of filtering and automatic cleaning at the same time by arranging structures such as the accumulation groove, the slide groove, the square box and the first baffle, and the impurities are directly sucked away to avoid clogging of the filter holes again; Since the square box only covers and blocks a single storage slot, the storage slots at other positions remain open, and the external air can enter the interior of the shell through the corresponding storage slots, filter holes, slide slots and air inlet slots in sequence, without affecting the cooling and heat dissipation of the intensive bus duct; The first baffle covers the filter hole to improve the effect of impurity suction and cleaning, while preventing the suction from affecting the heat dissipation airflow inside the shell; The air inlet grooves are arranged at the upper and lower ends of the slideway, so that when the gas enters the interior of the shell, it will not directly act on the conductive copper busbar and other structures, thus avoiding deformation and wear caused by long-term wind action; By arranging the first U-shaped box, the second U-shaped box and the suction and pressurization assembly and other structures, the effects of heat dissipation and impurity cleaning are achieved at the same time; By setting structures such as a booster box, a first solenoid valve and a second solenoid valve, the suction force is periodically increased, the circulation speed of the gas inside the shell is accelerated, the heat dissipation effect is improved, and the suction force on the accumulation tank is increased at the same time, so as to achieve efficient cleaning; When the shell encounters a sudden spontaneous combustion, the first baffle covers the filter holes, and the external gas cannot enter the shell. The air pump sucks the inside of the shell through the first U-shaped box and other structures. As the air pressure decreases, the oxygen content decreases relatively, and the fire is controlled; A fire extinguishing powder is provided in the form of a powder box, a second baffle and other structures. When the shell body encounters a sudden spontaneous combustion, the fire extinguishing powder enters the shell body through the discharge chute and covers the conductive copper busbar and other structures to achieve internal fire extinguishing and improve the safety of the use of intensive bus duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a dense bus duct with a flame retardant structure from one perspective of the present invention.

[0019] Figure 2 This is a schematic structural diagram of the dense bus duct with a flame retardant structure from another perspective of the present invention.

[0020] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle.

[0021] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0022] Figure 5 It is a schematic diagram of the structure of the housing and the conductive copper busbar of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the shell and the air outlet groove of the present invention.

[0024] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point C in the middle.

[0025] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of the structure at point D in the middle.

[0026] Fig. 9 It is a schematic diagram of the shell and square box structure of the present invention.

[0027] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram of the structure at point E in the middle.

[0028] In the figure: 1, shell; 2, square groove; 3, rectangular plate; 4, accumulation groove; 5, slide groove; 6, square box; 7, filter hole; 8, first baffle; 9, support block; 10, first spring; 11, air inlet groove; 12, first magnet; 13, second magnet; 14, electromagnet; 15, agent box; 16, second baffle; 17, second spring; 18, discharge groove; 19, third magnet; 20, bump; 21, first U-shaped box; 22, second U-shaped box; 23, first air pipe; 24, second air pipe; 25, three-way joint; 26, third air pipe; 27, booster box; 28, first solenoid valve; 29, air pump; 30, electric push rod; 31, conductive copper busbar; 32, insulating fireproof sleeve; 33, flame retardant block; 34, silo; 35, sliding bin; 36, air outlet groove; 37, second solenoid valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clearly described in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides Figures 1 to 10 A dense bus duct with a flame retardant structure is shown, including a shell 1, on which a plurality of evenly distributed conductive copper bars 31 are inserted, and the outer sleeve of the conductive copper bars 31 is provided with an insulating fireproof sleeve 32, and the insulating fireproof sleeve 32 can use but is not limited to polyimide insulating materials, and has the characteristics of high temperature resistance, heat shock resistance, and flame retardancy. The upper and lower ends of the shell 1 are fixedly connected with flame retardant blocks 33, and the flame retardant blocks 33 can use but are not limited to thermal conductive ceramic plates, and have the characteristics of flame retardancy, insulation, and heat conduction. The insulating fireproof sleeve 32 is fixedly connected between the upper and lower flame retardant blocks 33, and the flame retardant blocks 33 can take away the heat generated by the conductive copper bars 31 when working, so that when the gas inside the shell 1 flows, the heat of the flame retardant blocks 33 will be taken away. In specific use, heat dissipation fins and other structures can also be set to cooperate with the flame retardant blocks 33 to improve the heat dissipation efficiency. The heat dissipation fins and their working principles are all existing common technologies, which will not be elaborated here.

[0031] A square groove 2 is provided on both sides of the shell 1, and a rectangular plate 3 is fixedly connected inside the square groove 2. A storage groove 4 for impurities to accumulate is provided on one side of the rectangular plate 3 close to the outside of the shell 1, which is convenient for subsequent cleaning. A chute 5 is provided on one side of the rectangular plate 3 close to the inside of the shell 1. The storage groove 4 and the chute 5 are both provided in multiple numbers, and the multiple storage grooves 4 and the multiple chute 5 are distributed one-to-one. A plurality of filter holes 7 are provided on the inner wall of the storage groove 4, and the storage groove 4 is connected to the chute 5 through the filter holes 7. An air inlet groove 11 is provided through the upper and lower ends of the chute 5, and the chute 5 is connected to the shell 1 through the air inlet groove 11. An air outlet groove 36 is provided on both sides of the shell 1. The square groove 2 and the air outlet groove 36 are respectively located at the two ends of the shell 1, and ventilation and heat dissipation are respectively performed from both sides of the shell 1. External gas can enter the shell 1 through the accumulation groove 4, filter hole 7, slide groove 5 and air inlet groove 11 in sequence, and be discharged through the air outlet groove 36, thereby realizing gas circulation inside the shell 1, taking away the heat generated by the conductive copper busbar 31 and other structures, thereby realizing cooling and heat dissipation of the dense bus duct, and impurities will accumulate inside the accumulation groove 4.

[0032] The air inlet grooves 11 are arranged at the upper and lower ends of the slide groove 5, so that when the gas enters the interior of the shell 1, it will not directly act on the conductive copper busbar 31 and other structures, thereby avoiding deformation and wear caused by long-term wind action.

[0033] Taking into account that impurities accumulated inside the accumulation groove 4 may cause blockage of the filter hole 7 and affect the air intake efficiency, in order to achieve the suction and cleaning of impurities, a first baffle 8 for covering the filter hole 7 is slidingly provided inside the slide groove 5, and square boxes 6 for sucking impurities inside the accumulation groove 4 are provided on both sides of the shell 1. The square box 6 is slidably fitted on the corresponding rectangular plate 3, and the length and width of the inner wall of the square box 6 are respectively consistent with the length and width of the accumulation groove 4, so that the square box 6 can cover the accumulation groove 4.

[0034] Specifically, when the square box 6 corresponds to one of the chutes 5, since the length and width of the inner wall of the square box 6 are respectively consistent with the length and width of the storage slot 4, the storage slot 4 can be covered, and the first baffle 8 slides toward the square box 6 and fits on the inner wall of the chutes 5 to complete the covering of the filter hole 7 (refer to Figure 8 Right side position), at this time, a cleaning space is formed between the accumulation groove 4 and the square box 6, and the impurities accumulated inside the accumulation groove 4 are sucked and cleaned through the square box 6, so as to achieve the effect of automatic cleaning; and the impurities will be directly sucked away and will not stay near the accumulation groove 4.

[0035] The present invention achieves the effects of filtering and automatic cleaning at the same time by providing structures such as the accumulation groove 4, the slide groove 5, the square box 6 and the first baffle 8, and impurities can be directly sucked away to avoid clogging of the filter hole 7 again.

[0036] The first baffle 8 covers the filter hole 7 to improve the effect of impurity suction and cleaning, while preventing the suction from affecting the heat dissipation airflow inside the housing 1.

[0037] Since the square box 6 only covers and blocks a single storage slot 4, the storage slots 4 at other positions remain open, and external air can enter the interior of the shell 1 through the corresponding storage slots 4, filter holes 7, slide slots 5 and air inlet slots 11 in sequence, without affecting the cooling and heat dissipation of the intensive bus duct.

[0038] After cleaning, when the square box 6 is staggered from the slide groove 5, the first baffle plate 8 slides away from the square box 6, and the air inlet groove 11 is located between the first baffle plate 8 and the accumulation groove 4 (refer to Figure 8 Left side position), restore the air intake state.

[0039] After a single storage slot 4 is cleaned, the square box 6 can be controlled to correspond to the next chute 5, and the cleaning of all storage slots 4 is completed.

[0040] When impurities are attached to the position between two adjacent accumulation grooves 4, the square box 6 can push and scrape them, and the impurities will enter the interior of the accumulation groove 4 under the action of suction and then be cleaned.

[0041] It should be noted that microholes (not shown in the figure) can be set at the edge of the square box 6 or the storage groove 4, so that external gas can be replenished into the space between the square box 6 and the storage groove 4 during the impurity suction process to ensure the suction effect. Other methods can also be used and can be adjusted according to specific usage conditions.

[0042] In order to control the movement of the square box 6, a second U-shaped box 22 is slidably provided on the outside of the shell 1. The second U-shaped box 22 is connected between the two square boxes 6. A protrusion 20 is fixedly connected to the outer wall of the shell 1, and an electric push rod 30 is fixedly connected to the protrusion 20. The second U-shaped box 22 is fixedly connected to the telescopic end of the electric push rod 30.

[0043] In order to control the movement of the first baffle 8, a through slot is formed on the first baffle 8, and a second magnet 13 is fixedly connected inside the through slot. A first magnet 12 is fixedly connected to the inner wall of the square box 6. The first magnet 12 and the second magnet 13 attract each other, and the magnetic properties of the first magnet 12 and the second magnet 13 on the side close to each other are opposite. A support block 9 is fixedly connected to the inner wall of the slide 5, and the support block 9 is located on the side of the first baffle 8 facing away from the storage tank 4. In order to facilitate the reset of the first baffle 8, a first spring 10 is fixedly connected between the support block 9 and the first baffle 8, and the attraction force between the first magnet 12 and the second magnet 13 is greater than the elastic support force of the first spring 10.

[0044] When the square box 6 corresponds to one of the storage slots 4, since the first magnet 12 and the second magnet 13 are attracted to each other, and the attraction force is greater than the elastic support force of the first spring 10, under the action of the attraction force, the first baffle 8 will overcome the elastic support force of the first spring 10 and move toward the storage slot 4, and fit on the inner wall of the slide slot 5 to cover the filter hole 7 (refer to Figure 8Right side position), at this time, a cleaning space is formed between the storage groove 4 and the square box 6.

[0045] Furthermore, after the cleaning is completed, when the square box 6 is offset from the slide groove 5 , the return elastic force of the first spring 10 causes the first baffle 8 to return to its original position.

[0046] In the process of external gas entering the interior of the shell 1 from the accumulation groove 4, the filter hole 7, the slide groove 5 and the air inlet groove 11 in sequence, the airflow needs to change its route when passing through the air inlet groove 11 from the slide groove 5. The airflow acts on the first baffle 8 due to inertia, and the first spring 10 provided can perform force unloading and buffering, thereby reducing the wear of the first baffle 8.

[0047] A first U-shaped box 21 is fixedly connected to the outer wall of the housing 1 , and the first U-shaped box 21 is connected between the two air outlet grooves 36 .

[0048] A suction and pressurization assembly is provided between the first U-shaped box 21 and the second U-shaped box 22, and the suction and pressurization assembly includes a first air pipe 23, a second air pipe 24, a three-way joint 25, a third air pipe 26, a pressurization box 27, a first solenoid valve 28, an air pump 29, and a second solenoid valve 37. The three-way joint 25 is connected between the first air pipe 23 and the second air pipe 24, and one end of the first air pipe 23 away from the three-way joint 25 is connected to the second U-shaped box 22. The first air pipe 23 uses an elastic telescopic tube, which does not affect the movement of the second U-shaped box 22. One end of the second air pipe 24 away from the three-way joint 25 is connected to the first U-shaped box 21, the boost box 27 and the air pump 29 are fixedly connected to the outer wall of the housing 1, the air inlet end of the air pump 29 is connected to the boost box 27, one end of the third air pipe 26 is connected to the three-way joint 25, and the other end of the third air pipe 26 is connected to the boost box 27. The first solenoid valve 28 is fixedly installed on the second air pipe 24, and the second solenoid valve 37 is fixedly installed on the first air pipe 23. When used specifically, a filtering device (not shown in the figure) can be set on the first air pipe 23. The filtering device includes a filter box, a filter net and other structures, which can filter the sucked impurities. The filtering device is an existing common technology and will not be described here.

[0049] When working, the air pump 29 sucks the inside of the shell 1 through the first U-shaped box 21 and other structures, and the external air enters the inside of the shell 1 through the accumulation groove 4, the filter hole 7, the slide groove 5 and the air inlet groove 11 in turn, and is discharged from the air outlet groove 36, thereby realizing the gas circulation inside the shell 1 and taking away the heat generated by the conductive copper busbar 31 and other structures, thereby realizing the cooling and heat dissipation of the dense bus duct.

[0050] Furthermore, a semiconductor refrigeration sheet or other structure may be provided at the rectangular plate 3 to cool the gas entering the shell 1 and improve the heat dissipation effect, which may be adjusted according to specific usage conditions.

[0051] By providing the first U-shaped box 21, the second U-shaped box 22 and the suction and pressurization assembly and other structures, the effects of heat dissipation and impurity cleaning are achieved at the same time.

[0052] During the heat dissipation process, the second solenoid valve 37 is closed, and the first solenoid valve 28 is controlled to switch between opening and closing. When the first solenoid valve 28 is in the closed state, the air pump 29 sucks the boost box 27 into a vacuum state; then the first solenoid valve 28 is opened, and at this time, there is a large pressure difference between the boost box 27 and the accumulation tank 4, and under the suction cooperation of the air pump 29, a large suction force is generated, which accelerates the circulation speed of the gas inside the shell 1 and improves the heat dissipation effect.

[0053] Repeat the above steps to periodically increase the suction force and achieve efficient heat dissipation.

[0054] Furthermore, a pressure sensor, a controller and other structures may be provided on the pressurizing box 27 to monitor the air pressure state, and the opening and closing states of the first solenoid valve 28 may be switched through the controller.

[0055] When it is necessary to suck out impurities, the second solenoid valve 37 and the first solenoid valve 28 can be controlled to switch between opening and closing synchronously, so as to periodically increase the suction force of the impurities and achieve efficient cleaning.

[0056] By providing structures such as the boost box 27, the first solenoid valve 28 and the second solenoid valve 37, the suction force is periodically increased, the flow rate of the gas inside the shell 1 is accelerated, the heat dissipation effect is improved, and the suction force on the storage tank 4 is increased to achieve efficient cleaning.

[0057] Considering the high potential fire safety hazard in the dense bus duct, in order to improve the safety performance of use, the square slot 2 is fixedly connected with the agent box 15, and the agent box 15 is slidably provided with a second baffle 16, which divides the inside of the agent box 15 into a material bin 34 and a sliding bin 35, and the material bin 34 is located at one end of the agent box 15 close to the inside of the shell 1, and the inside of the material bin 34 is filled with fire extinguishing powder, which is prepared from base materials such as baking soda and ammonium carbonate, and has the effect of extinguishing fire with the raw materials of dry powder fire extinguishing agent. The agent box 15 is provided with a discharge slot 18, and the sliding bin 35 is connected to the shell 1 through the discharge slot 18.

[0058] A second spring 17 is disposed inside the material bin 34, one end of the second spring 17 is fixedly connected to the second baffle 16, and the other end of the second spring 17 is fixedly connected to the inner wall of the material bin 34. A third magnet 19 is fixedly connected to a side of the second baffle 16 close to the sliding bin 35, and the third magnet 19 is attracted to and matched with the first magnet 12, and the magnetism of the third magnet 19 and the first magnet 12 close to each other is opposite.

[0059] The support block 9 is fixedly connected with an electromagnet 14, which is used for emergency. When the shell 1 encounters a sudden spontaneous combustion, the electromagnet 14 is activated in an emergency. The magnetism of the electromagnet 14 and the second magnet 13 on the side close to each other is the same. Under the action of the repulsive force, the first baffle 8 overcomes the elastic support force of the first spring 10 and moves toward the accumulation groove 4, and fits on the inner wall of the slide groove 5 to cover the filter hole 7. External gas cannot enter the shell 1. The air pump 29 sucks the inside of the shell 1 through the first U-shaped box 21 and other structures. As the air pressure decreases, the oxygen content is relatively reduced to control the fire.

[0060] During specific use, an emergency power supply may be provided on the housing 1 to supply power to the electromagnet 14 , the air pump 29 and other structures.

[0061] During normal operation, the square box 6 will only slide on the rectangular plate 3 to clean the storage groove 4; when the shell 1 encounters a sudden spontaneous combustion, the telescopic end of the electric push rod 30 extends out, and drives the square box 6 to fit with the agent box 15 through the second U-shaped box 22. Since the third magnet 19 and the first magnet 12 are attracted to each other, the second baffle 16 overcomes the elastic supporting force of the second spring 17 and moves towards the square box 6. The silo 34 expands and is connected to the shell 1 through the discharge trough 18. Under the action of the suction force, the fire extinguishing powder inside it enters the shell 1 through the discharge trough 18 and covers the conductive copper bus 31 and other structures.

[0062] The structures such as the agent box 15 and the second baffle 16 are provided. When the shell 1 encounters a sudden spontaneous combustion, the fire extinguishing powder enters the shell 1 from the discharge chute 18 and covers the conductive copper busbar 31 and other structures to achieve internal fire extinguishing and improve the safety of the use of the intensive bus duct.

[0063] At this time, the filter holes 7 are all closed, ensuring that the suction force is concentrated at the discharge trough 18, and the fire extinguishing powder inside the silo 34 is better discharged.

[0064] It should be noted that a pressure-compensating device (not shown in the figure) is provided on the agent box 15. The pressure-compensating device includes a one-way valve and other structures. When the fire-extinguishing powder inside the silo 34 is sucked, the pressure-compensating device can allow external gas to enter the silo 34 to ensure the normal flow of the fire-extinguishing powder. The pressure-compensating device is an existing common technology and will not be elaborated here.

[0065] Working principle: During normal operation, the air inlet slot 11 is located between the first baffle 8 and the storage slot 4 (refer to Figure 8 Left side position), external air can enter the interior of the shell 1 through the accumulation groove 4, the filter hole 7, the slide groove 5 and the air inlet groove 11 in sequence.

[0066] The air pump 29 is started to suck the inside of the shell 1 through the first U-shaped box 21 and other structures. The external air enters the inside of the shell 1 through the accumulation groove 4, the filter hole 7, the slide groove 5 and the air inlet groove 11 in sequence, and is discharged from the air outlet groove 36, thereby realizing the gas circulation inside the shell 1 and taking away the heat generated by the conductive copper busbar 31 and other structures, thereby realizing the cooling and heat dissipation of the dense bus duct.

[0067] During the heat dissipation process, the second solenoid valve 37 is closed, and the first solenoid valve 28 is controlled to switch between opening and closing. When the first solenoid valve 28 is in the closed state, the air pump 29 sucks the boost box 27 into a vacuum state; then the first solenoid valve 28 is opened, at which time there is a large pressure difference between the boost box 27 and the accumulation tank 4, and under the suction cooperation of the air pump 29, a large suction force is generated, which accelerates the circulation speed of the gas inside the shell 1 and improves the heat dissipation effect; repeat the above steps, thereby periodically increasing the suction force to achieve efficient heat dissipation.

[0068] In the process of ventilation and heat dissipation, the gas passes through the filter hole 7, and impurities will accumulate inside the accumulation groove 4. When the accumulated impurities are large and affect the ventilation effect, the telescopic end of the electric push rod 30 is controlled to extend, so that the square box 6 corresponds to the first slide groove 5 in its moving direction. Since the length and width of the inner wall of the square box 6 are respectively consistent with the length and width of the accumulation groove 4, the accumulation groove 4 can be covered. At the same time, due to the attraction and cooperation between the first magnet 12 and the second magnet 13, under the action of the attraction force, the first baffle 8 overcomes the elastic supporting force of the first spring 10 and moves in the direction of the accumulation groove 4, fits on the inner wall of the slide groove 5, and completes the covering of the filter hole 7 (refer to Figure 8 The second electromagnetic valve 37 is opened, and the air pump 29 sucks and cleans the impurities accumulated inside the storage tank 4 through the first air pipe 23, the second U-shaped box 22 and the square box 6, so as to achieve the effect of automatic cleaning, and the impurities will be directly sucked away and will not stay near the storage tank 4.

[0069] At the same time, the first baffle 8 covers the filter hole 7 to improve the effect of suction and cleaning of impurities, while preventing the suction from affecting the airflow inside the shell 1.

[0070] Furthermore, during the impurity suction cleaning process, the second solenoid valve 37 and the first solenoid valve 28 can be controlled to switch between opening and closing synchronously, thereby periodically increasing the suction force to achieve efficient cleaning.

[0071] Since the square box 6 only covers and blocks a single storage slot 4, the storage slots 4 at other positions remain open, and external air can enter the interior of the shell 1 through the corresponding storage slots 4, filter holes 7, slide slots 5 and air inlet slots 11 in sequence, without affecting the cooling and heat dissipation of the intensive bus duct.

[0072] After a single storage slot 4 is cleaned, the square box 6 can be controlled to correspond to the next chute 5, and the cleaning of all storage slots 4 is completed.

[0073] When the shell 1 encounters a sudden spontaneous combustion, the electromagnet 14 is activated in an emergency. The magnetism of the electromagnet 14 and the second magnet 13 on the side close to each other is the same. Under the action of the repulsive force, the first baffle 8 overcomes the elastic supporting force of the first spring 10 and moves toward the accumulation groove 4, and fits on the inner wall of the slide groove 5 to cover the filter hole 7. External gas cannot enter the interior of the shell 1. The air pump 29 sucks the interior of the shell 1 through the first U-shaped box 21 and other structures. As the air pressure decreases, the oxygen content is relatively reduced, thereby controlling the fire.

[0074] At the same time, the telescopic end of the electric push rod 30 extends out, and drives the square box 6 to fit correspondingly with the agent box 15 through the second U-shaped box 22. Due to the attraction and cooperation between the third magnet 19 and the first magnet 12, the second baffle 16 overcomes the elastic supporting force of the second spring 17 and moves towards the square box 6. The silo 34 expands and is connected with the shell 1 through the discharge chute 18. The fire extinguishing powder inside it enters the shell 1 through the discharge chute 18 and covers the conductive copper busbar 31 and other structures, thereby realizing internal fire extinguishing and improving the safety of the use of intensive bus ducts.

Claims

1. A dense bus duct with a flame retardant structure, comprising a housing (1), characterized in that: The shell (1) has square grooves (2) on both sides, a rectangular plate (3) is fixedly connected to the inside of the square groove (2), a storage groove (4) for impurities to accumulate is provided on the side of the rectangular plate (3) close to the outside of the shell (1), a chute (5) is provided on the side of the rectangular plate (3) close to the inside of the shell (1), a plurality of filter holes (7) are provided on the inner wall of the storage groove (4), the storage groove (4) is connected to the chute (5) through the filter holes (7), and the chute (5) is provided with a plurality of filter holes (7) on the inner wall of the storage groove (4). An air inlet groove (11) is provided through both ends of the upper and lower parts. The slide groove (5) is connected to the shell (1) through the air inlet groove (11). A first baffle (8) for covering the filter hole (7) is slidably provided inside the slide groove (5). Square boxes (6) for sucking impurities inside the accumulation groove (4) are provided on both sides of the shell (1). The square boxes (6) are slidably fitted on the corresponding rectangular plate (3), and the length and width of the inner wall of the square box (6) are respectively consistent with the length and width of the accumulation groove (4).

2. The dense bus duct with a flame retardant structure according to claim 1, characterized in that: The accumulation groove (4) and the chute (5) are both provided in plurality, and the plurality of accumulation grooves (4) and the plurality of chute (5) are distributed in a one-to-one correspondence.

3. The dense bus duct with a flame retardant structure according to claim 1, characterized in that: A through slot is formed through the first baffle plate (8), a second magnet (13) is fixedly connected inside the through slot, a first magnet (12) is fixedly connected to the inner wall of the square box (6), the first magnet (12) and the second magnet (13) are attracted to each other, a support block (9) is fixedly connected to the inner wall of the slide groove (5), the support block (9) is located on a side of the first baffle plate (8) facing away from the storage groove (4), and a first spring (10) is fixedly connected between the support block (9) and the first baffle plate (8).

4. The dense bus duct with a flame retardant structure according to claim 3, characterized in that: The square groove (2) is fixedly connected to a reagent box (15), and a second baffle (16) is slidably provided inside the reagent box (15). The second baffle (16) divides the inside of the reagent box (15) into a material bin (34) and a sliding bin (35). The material bin (34) is located at one end of the reagent box (15) close to the inside of the shell (1). The inside of the material bin (34) is filled with fire extinguishing powder. A discharge trough (18) is provided on the reagent box (15), and the sliding bin (35) is connected to the shell (1) via the discharge trough (18).

5. The dense bus duct with a flame retardant structure according to claim 4, characterized in that: A second spring (17) is arranged inside the material bin (34), one end of the second spring (17) is fixedly connected to the second baffle (16), and the other end of the second spring (17) is fixedly connected to the inner wall of the material bin (34); a third magnet (19) is fixedly connected to a surface of the second baffle (16) close to the sliding bin (35), and the third magnet (19) is attracted to and cooperates with the first magnet (12).

6. The dense bus duct with a flame retardant structure according to claim 5, characterized in that: An electromagnet (14) is fixedly connected to the support block (9).

7. The dense bus duct with a flame retardant structure according to claim 1, characterized in that: A second U-shaped box (22) is slidably provided on the outside of the shell (1), the second U-shaped box (22) is connected between the two square boxes (6), a protrusion (20) is fixedly connected to the outer wall of the shell (1), an electric push rod (30) is fixedly connected to the protrusion (20), and the second U-shaped box (22) is fixedly connected to the telescopic end of the electric push rod (30).

8. The dense bus duct with a flame retardant structure according to claim 7, characterized in that: Air outlet grooves (36) are provided on both sides of the shell (1); the square groove (2) and the air outlet groove (36) are respectively located at two ends of the shell (1); a first U-shaped box (21) is fixedly connected to the outer wall of the shell (1); and the first U-shaped box (21) is connected between the two air outlet grooves (36).

9. The dense bus duct with a flame retardant structure according to claim 8, characterized in that: A suction and pressurization assembly is provided between the first U-shaped box (21) and the second U-shaped box (22), the suction and pressurization assembly comprising a first air pipe (23), a second air pipe (24), a three-way joint (25), a third air pipe (26), a pressurization box (27), a first solenoid valve (28), an air pump (29) and a second solenoid valve (37), the three-way joint (25) being connected between the first air pipe (23) and the second air pipe (24), one end of the first air pipe (23) away from the three-way joint (25) being connected to the second U-shaped box (22), and the second air pipe (26) being connected to the third air pipe (27). One end of the tube (24) away from the three-way connector (25) is connected to the first U-shaped box (21); the booster box (27) and the air pump (29) are both fixedly connected to the outer wall of the shell (1); the air inlet end of the air pump (29) is connected to the booster box (27); one end of the third air pipe (26) is connected to the three-way connector (25); the other end of the third air pipe (26) is connected to the booster box (27); the first solenoid valve (28) is fixedly mounted on the second air pipe (24); and the second solenoid valve (37) is fixedly mounted on the first air pipe (23).

10. The dense bus duct with a flame retardant structure according to claim 1, characterized in that: The shell (1) is provided with a plurality of evenly distributed conductive copper bars (31), the conductive copper bars (31) are externally covered with an insulating fireproof cover (32), the upper and lower ends of the shell (1) are fixedly connected with flame retardant blocks (33), and the insulating fireproof cover (32) is fixedly connected between the upper and lower flame retardant blocks (33).

Images