Intelligent low-voltage draw-out switch cabinet

Abstract

The invention discloses an intelligent low-voltage draw-out type switch cabinet which comprises a cabinet body, a plurality of drawer structures, a first shutter structure and a water cooling structure are arranged in the cabinet body, and a plurality of inner cavity structures are formed around the drawer structures; second shutter structures are arranged at the top and the bottom of the cabinet body respectively, meanwhile, a control system and a detection mechanism are installed in the cabinet body, corresponding ventilation and cooling modes are dynamically adjusted through the corresponding first shutter structures, ventilation and cooling are conducted on different inner cavity structures, and in the heat accumulation stage before fire and the fire stage, the temperature of the inner cavity structures is reduced. The corresponding inner cavity structures are gradually closed, and ventilation cooling is gradually performed towards a water cooling position, so that oxygen is isolated, the influence in other inner cavity structures is reduced, fire loss is reduced, the inner cavity structures are automatically adjusted to a proper ventilation cooling protection mode according to the corresponding cabinet body environment, and the safety of the cabinet body is improved. And the safety of the cabinet body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of switch cabinets, and particularly to an intelligent low-voltage draw-out switch cabinet. Background Art

[0002] A draw-out switch cabinet is a common power distribution device. A large number of electrical components such as circuit breakers and contactors are installed in each drawer, which can be flexibly drawn out or inserted into the cabinet body, and each drawer can independently control the power supply of a device or system.

[0003] In the existing low-voltage draw-out switch cabinet, an air inlet and an air outlet are usually provided above and below the side of the cabinet body respectively. The movement of air flow is guided by a fan to realize the interaction of air inside and outside the cabinet. Since each drawer in the draw-out switch cabinet belongs to a relatively independent modular system, according to different working states, the heat generation efficiency of electrical components will also be different. However, the existing ventilation method can only ventilate and dissipate heat for the whole in the draw-out switch cabinet, which is not conducive to the ventilation of a single drawer locally. This leads to that after a local fire is caused by heat accumulation, if the ventilation is not closed, more oxygen will enter, causing the spread of the fire. If it is closed, the heat generated by electrical components in other drawers is not easy to eliminate, entering the heat accumulation stage before the fire. Seriously, it may further cause the electrical components in other drawers to stop working, affecting the normal operation. Summary of the Invention

[0004] In view of this, the main object of the present invention is to provide an intelligent low-voltage draw-out switch cabinet.

[0005] The technical solution adopted by the invention is as follows: An intelligent low-voltage draw-out switch cabinet includes a cabinet body. A plurality of drawer structures and a plurality of cooling mechanisms are arranged in the cabinet body, and the plurality of cooling mechanisms are respectively located outside the corresponding drawer structures. After the drawer structures are inserted into the cabinet body, a plurality of inner cavity structures are formed; A ventilation assembly is further arranged on the cabinet body for overall ventilation of the interior of the cabinet body; The cooling mechanism includes a first louver structure and a water cooling structure, which are respectively used for ventilation and water cooling to reduce the temperature; Detection mechanisms are arranged in both the cabinet body and the inner cavity structures, which are respectively used to detect the temperature inside the cabinet body and in the inner cavity structures, as well as the heat distribution and smoke concentration in the inner cavity structures; A control system is further arranged in the cabinet body, and the control system is respectively in communication connection with the ventilation assembly, the first louver structure, the water cooling structure and the detection mechanism, so as to compare the temperature difference between the inside of the cabinet body and the outside of the inner cavity structures and the heat distribution in the inner cavity structures based on the detection values obtained by the detection mechanism, so that in the normal ventilation and heat dissipation stage, the heat accumulation stage and the fire stage, the size and direction of the air flow in and out of the first louver structure can be dynamically adjusted and the water cooling structure can be started and gradually switched to.

[0006] Optionally, the ventilation component includes a second louver structure and a fan disposed inside the cabinet body. The second louver structure is located at the top and bottom of the cabinet body for ventilating the inside of the cabinet. A second temperature detection component is further disposed outside the cabinet body for detecting the external environmental temperature of the cabinet body. The control system is communicatively connected to the second temperature detection component, the second louver structure, and the fan respectively. The control system compares the temperatures inside and outside the cabinet body and controls the opening and closing size of the second louver structure and the rotation speed of the fan based on the temperature difference between the inside and outside of the cabinet body.

[0007] Optionally, both the first louver structure and the second louver structure include a positioning frame. A first cavity is formed on one side of the positioning frame, and a plurality of blades are rotatably connected to the middle of the positioning frame. The ends of the plurality of blades penetrate through the positioning frame and extend into the interior of the first cavity. A transmission component with a self-locking function is disposed at the end of the blade. One end of the transmission component is connected to a first driving structure, and the first driving structure is installed inside the first cavity. The rotation angle of the blade is adjusted by the first driving structure to control the opening and closing size and the flow guiding direction of the first louver structure and the second louver structure. Angle sensors are disposed at the ends of the plurality of blades for detecting the rotation angle. The plurality of angle sensors, the transmission component, and the first driving structure are all communicatively connected to the control system.

[0008] Optionally, the transmission component includes a worm gear. The inner side of the worm gear is fixedly sleeved on the end of the blade. The outer side of the worm gear is meshed with a worm having a hollow structure. The inner side of the worm is rotatably sleeved on the outer side of the rotating shaft. One end of the rotating shaft is fixedly connected to the output shaft of the first driving structure. A plurality of locking components are sleeved on the outer side of the rotating shaft. The plurality of locking components are all communicatively connected to the control system. The plurality of locking components are respectively connected to the corresponding worms. When the rotating shaft needs to drive the worm to rotate, the corresponding worm and the rotating shaft are locked so that each blade can be adjusted independently.

[0009] Optionally, the locking component includes an annular sleeve. The annular sleeve is sleeved on the outer side of the rotating shaft, and one end of the annular sleeve is fixedly connected to one end of the worm. A second cavity is formed inside the annular sleeve. A pressing block is disposed on the inner wall of the second cavity. The end of the pressing block extending towards the rotating shaft penetrates through the second cavity. A first elastic member is disposed on the side of the pressing block away from the rotating shaft for pulling the pressing block to move away from the rotating shaft. A control board is further disposed in the second cavity. The middle of the control board is rotatably connected to the inner wall of the second cavity. An electromagnet is disposed on the side of the control board away from the pressing block. The electromagnet is communicatively connected to the control system. One side of the electromagnet is connected to the inner wall of the second cavity, and a second elastic member is disposed on the side of the control board away from the electromagnet for pulling the control board to reset.

[0010] Optionally, when a plurality of blades all rotate to a horizontal state, the plurality of blades are arranged in a straight line in sequence, and two adjacent blades are in contact with each other, so that the plurality of blades jointly form a rectangular surface, and the area of the rectangular surface formed by the plurality of blades is adapted to the area of the ventilable region in the middle of the positioning frame.

[0011] Optionally, the water cooling structure includes a first heat dissipation plate having a cavity. The top and bottom of the first heat dissipation plate are respectively fixedly connected to the corresponding positioning frame. One side of the first heat dissipation plate is communicated with a circulation pipeline, and one side of the circulation pipeline is communicated with a heat dissipation box, and the heat dissipation box is installed on the top of the cabinet body; A second driving structure is further arranged on the circulation pipeline. The second driving structure is communicatively connected with the control system and is used for driving the fluid in the heat dissipation box and the first heat dissipation plate to circulate; A first control valve is arranged at the connection of each first heat dissipation plate and the circulation pipeline. The first control valve is communicatively connected with the control system and is used for controlling the flow rate passing through the corresponding first heat dissipation plate.

[0012] Optionally, a second communication component is arranged on one side of the back of the cabinet body where the drawer structure is located for communicating the inside and the outside of the inner cavity structure; An air storage tank is arranged on the top of the cabinet body. The inside of the air storage tank is filled with a fire extinguishing gas. One side of the air storage tank is provided with a communicating hose. One end of the communicating hose is connected with a first communication component. One side of the first communication component is provided with a moving component. The moving component is installed on the back of the cabinet body and is used for driving the first communication component to move and communicating the first communication component with the second communication component, so that the fire extinguishing gas is injected into the inner cavity structure.

[0013] Optionally, a protection plate is further arranged on the back of the cabinet body. The bottom of the protection plate is connected with a bottom plate, and the top of the protection plate is hinged with a cover plate for forming a pressure relief channel for upward exhaust at the back of the cabinet body; The second communication component includes an L-shaped pipe located at the back of the drawer structure. One end of the L-shaped pipe is communicated with the drawer structure. The top opening of the L-shaped pipe faces upward, and an annular protrusion is arranged near the top opening of the L-shaped pipe. The diameter dimension of the protrusion is larger than the diameter of the top opening of the L-shaped pipe; A sealing plate is arranged at the top opening of the L-shaped pipe, and the diameter of the sealing plate is adapted to the inner diameter of the top of the L-shaped pipe. A third elastic member is arranged at the bottom of the sealing plate, and a bracket is arranged at the bottom of the third elastic member, so that when the pressure is relieved, the gas pushes the sealing plate to move outside the L-shaped pipe to open the L-shaped pipe for the gas to be discharged.

[0014] Optionally, the height of the top of the bracket is adapted to the height of the middle of the protrusion, and the distance between the top of the protrusion and the bracket is greater than the thickness of the sealing plate; The first connecting component includes a fixing block with an opening in the middle. The inner side of the fixing block is fixedly sleeved on the outer side of a fixing pipe. The top of the fixing pipe is communicated with the end of a connecting hose. And a fourth elastic member is arranged at the bottom of the fixing block. The bottom of the fourth elastic member is connected with a sealing ring. The inner side of the sealing ring is sleeved on the outer side of the fixing pipe. And the outer diameter of the sealing ring is larger than the inner diameter of the L-shaped pipe, for sealing the top of the L-shaped pipe. The outer diameter of the fixing pipe is smaller than the inner diameter of the L-shaped pipe. And an arc-shaped opening is arranged at the bottom of the fixing pipe. When the fixing pipe is inserted into the interior of the L-shaped pipe, it is communicated with the interior of the L-shaped pipe through the arc-shaped opening, and the fire extinguishing gas is injected into the inner cavity structure.

[0015] The beneficial effects of the present invention are as follows: By forming several inner cavity structures inside the cabinet body, and through the ventilation components on the cabinet body, the environmental temperature inside the cabinet is maintained. Then, through the corresponding first louver structure, the corresponding ventilation and cooling methods are dynamically adjusted to ventilate and cool different inner cavity structures. And in the heat accumulation stage and the fire stage before a fire, the corresponding inner cavity structures are gradually closed, and the ventilation and cooling are gradually changed to water cooling treatment, so as to isolate oxygen while reducing the influence on other inner cavity structures, reducing the fire loss. Furthermore, several inner cavity structures are automatically adjusted to an appropriate ventilation and cooling protection method according to the corresponding cabinet environment, improving the safety of the cabinet. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the distribution connection inside the cabinet of the present invention; Figure 3 It is a schematic diagram of a single inner cavity structure of the present invention; Figure 4 It is a three-dimensional structure schematic diagram of the drawer structure of the present invention; Figure 5 It is a schematic diagram of the decomposition of the inner cavity structure of the present invention; Figure 6 It is a cross-sectional view of the positioning frame of the present invention; Figure 7 It is a partial schematic diagram of the blade of the present invention; Figure 8 It is a cross-sectional view of the annular sleeve of the present invention; Figure 9 It is a cross-sectional view of the protection plate of the present invention; Figure 10 It is a partial schematic diagram of the moving component of the present invention; Figure 11 It is a cross-sectional view of the first connecting component of the present invention; In the figure: 1, cabinet body; 2, first communication component; 201, fixed block; 202, fixed pipe; 203, fourth elastic member; 204, sealing ring; 3, second communication component; 301, L-shaped pipe; 302, protruding portion; 303, sealing plate; 304, third elastic member; 305, bracket; 4, locking component; 401, electromagnet; 402, first elastic member; 403, second elastic member; 404, control board; 405, pressing block; 406, annular sleeve; 5, worm; 6, worm gear; 7, blade; 8, rotating shaft; 9, positioning frame; 10, first louver structure; 11, second louver structure; 12, second rectangular ring; 13, rectangular plate; 14, first heat dissipation plate; 15, second heat dissipation plate; 16, drawer structure; 17, first threaded rod; 18, second threaded rod; 19, threaded bracket; 20, moving block; 21, telescopic rod; 22, air storage tank; 23, heat dissipation box; 24, first rectangular ring; 25, protection plate. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-11 , the present invention provides an intelligent low-voltage draw-out switchgear, including a cabinet body 1 used indoors. A plurality of drawer structures 16 are arranged in the cabinet body 1 for installing electrical components. The plurality of drawer structures 16 are sequentially distributed in a rectangular array from top to bottom, and a gap is provided between two adjacent drawer structures 16 to form an air duct from bottom to top. Cooling mechanisms are arranged on the outer sides of the plurality of drawer structures 16, and both sides of the cooling mechanism are respectively connected to the front and back of the inner wall of the cabinet body 1. After the drawer structure 16 is inserted into the cabinet body 1, a plurality of inner cavity structures are formed.

[0019] The cabinet body 1 is also provided with a ventilation component for overall ventilation inside the cabinet body 1; the ventilation component includes a second louver structure 11 and a fan arranged inside the cabinet body 1. The second louver structure 11 is located at the top and bottom of the cabinet body 1 for ventilating the inside of the cabinet body 1; the fan is located at the top and below the second louver structure 11, which is convenient for accelerating the efficiency of internal air circulation by closing the second louver structure 11 when the external temperature is higher than the internal temperature and ventilation cannot effectively cool down. At the same time, a dust-proof net is arranged on the outside of the second louver structure 11 to play a role in dust prevention; the cooling mechanism includes two first louver structures 10 and a water-cooling structure; the two first louver structures 10 are respectively arranged at the top and bottom of the inner cavity structure to control the size and direction of the air flow in and out of the top and bottom of the inner cavity structure, and a dust-proof plate is arranged on the outside to play a role in dust prevention; the two water-cooling structures are respectively located on the opposite sides inside the inner cavity structure to assist in cooling the inside of the inner cavity structure, and a water-cooling structure can also be arranged on the side of the cabinet body 1. When the ventilation with the outside is closed, the water-cooling structure on the cabinet body 1 is started to assist in the overall cooling treatment inside the cabinet body 1.

[0020] Detection mechanisms are arranged inside both the cabinet body 1 and the inner cavity structure, respectively used to detect the temperature inside the cabinet body 1, the heat distribution and the smoke concentration inside the inner cavity structure; specifically: first temperature detection components are arranged inside both the cabinet body 1 and the inner cavity structure, respectively used to detect the temperature inside the cabinet body 1 and the inner cavity structure in real time, and an infrared sensor and a smoke sensor are also arranged inside the inner cavity structure, respectively used to detect the heat distribution and the smoke concentration; a control system is also arranged inside the cabinet body 1, and the control system is respectively in communication connection with the first temperature detection component, the infrared temperature sensor and the smoke sensor, so as to compare the temperature difference between the inside of the cabinet body 1 and the outside of the inner cavity structure and the heat distribution inside the inner cavity structure based on the detection values obtained by the detection mechanism, and can dynamically adjust the size and direction of the air flow in and out of the first louver structure 10. When the temperature inside the inner cavity structure still continues to rise, the corresponding water-cooling structure is started to assist in the cooling treatment to prevent heat accumulation. And when the detected heat distribution and smoke concentration exceed the set values, the efficiency of the water-cooling structure is increased, and the first louver structure 10 is gradually closed to reduce the entry of oxygen.

[0021] A second temperature detection component is also provided outside the cabinet body 1 for detecting the external environmental temperature of the cabinet body 1, so as to compare the temperatures inside and outside the cabinet body 1. Based on the temperature difference between the inside and outside of the cabinet body 1, the opening and closing size of the second louver structure 11 and the fan speed are controlled; both the first louver structure 10 and the second louver structure 11 include a positioning frame 9. A first cavity is provided on one side of the positioning frame 9, and a plurality of blades 7 are rotatably connected to the middle of the positioning frame 9. A round shaft is fixedly connected to the end of the plurality of blades 7. The round shaft passes through the side wall of the positioning frame 9 and extends into the first cavity. A transmission component with a self-locking function is also provided at the end of the blade 7. One end of the transmission component is connected to a first driving structure, and the first driving structure is installed inside the first cavity. By adjusting the rotation angle of the blade 7 through the first driving structure, the opening and closing size and the flow guiding direction of the first louver structure 10 and the second louver structure 11 are controlled; Angle sensors (not shown in the figure) are provided at the ends of the plurality of blades 7 for detecting the rotation angle; during use, the first driving structure is a reversible motor, and the motor and the angle sensor are both communicatively connected to the control system, so as to feed back the data to the control system for coordinated control.

[0022] The transmission component includes a worm wheel 6 with a central opening. The inner side of the worm wheel 6 is fixedly sleeved on the end of the blade 7. The outer side of the worm wheel 6 is meshed with a worm 5 having a hollow structure. The inner side of the worm 5 is rotatably sleeved on the outer side of the rotating shaft 8. One end of the rotating shaft 8 is fixedly connected to the output shaft of the first driving structure. A plurality of locking components 4 are sleeved on the outer side of the rotating shaft 8. The plurality of locking components 4 are respectively connected to the corresponding worm 5. When the rotating shaft 8 needs to drive the worm 5 to rotate, the worm 5 and the rotating shaft 8 are locked, so that each blade 7 can be adjusted individually, and then the inclination direction of the corresponding blade 7 can be appropriately adjusted according to the heat distribution to cool the local area; during use, the part of the worm 5 in contact with the rotating shaft 8 is a smooth surface, and the worm 5 is partially rotatably connected to a connecting block (not shown in the figure). The connecting block is fixedly connected to the inner wall of the first cavity, and the surface friction drives the worm 5 to rotate, causing the worm 5 to be unstable. At the same time, the self-locking effect between the worm 5 and the worm wheel 6 is utilized to prevent the air flow from blowing the blade 7 to rotate, realizing the self-locking of the blade 7; at the same time, in order to reduce the number of the first driving structures (not shown in the figure), a notch is provided at the back corner of the drawer structure 16, and the bottom slide rail of the drawer structure 16 is located between the symmetric notches on both sides. Then a vertically arranged rotating shaft is provided at the notch, which passes through a plurality of first cavities from top to bottom and is rotatably connected to the positioning frame 9. A first bevel gear is fixedly sleeved at the first cavity, and the first bevel gear is meshed with a second bevel gear. The second bevel gear is fixed on the rotating shaft 8. Thus, by the synchronous operation of one or more motors, the corresponding rotating shaft 8 is driven to rotate. The rotating shaft 8 drives the rotating shaft to rotate through the first bevel gear and the second bevel gear, and then drives the other rotating shafts 8 without motors to rotate synchronously, and cooperates with the corresponding locking components 4 to control each blade 7.

[0023] The locking assembly 4 includes an annular sleeve 406. The inner side of the annular sleeve 406 is sleeved on the outer side of the rotating shaft 8, and one end of the annular sleeve 406 is fixedly connected to one end of the worm 5. A second cavity is formed inside the annular sleeve 406. A pressing block 405 is arranged on the inner wall of the second cavity. One end of the pressing block 405 penetrates through the second cavity and extends towards the rotating shaft 8. A first elastic member 402 is arranged on the side of the pressing block 405 away from the rotating shaft 8 for pulling the pressing block 405 to move away from the rotating shaft 8. A control board 404 is also arranged in the second cavity. The middle part of the control board 404 is rotatably connected to the inner wall of the second cavity. An electromagnet 401 is arranged on the side of the control board 404 away from the pressing block 405. The end of the electromagnet 401 leads the cable to the outside through a connector and is powered to the electromagnet 401 during rotation through a slip ring. One side of the electromagnet 401 is connected to the inner wall of the second cavity, and a second elastic member 403 is arranged on the side of the control board 404 away from the electromagnet 401. Both the first elastic member 402 and the second elastic member 403 are springs for pulling the control board 404 to reset.

[0024] During use, the electromagnet 401 is communicatively connected to the control system. The side of the control board 404 close to the electromagnet 401 is made of ferromagnetic material. When locking the rotating shaft 8 and the worm 5, the electromagnet 401 is energized, and the electromagnet 401 generates a magnetic force, driving one side of the control board 404 to move upward and pulling the second elastic member 403 to move and store elastic force, so that the other side of the control board 404 rotates downward, pressing the control board 404 against the pressing block 405, causing the pressing block 405 to pull the first elastic member 402 to move and press against the surface of the rotating shaft 8. Among them, the support between the control board 404 and the second cavity forms a labor-saving lever, reducing the magnetic force requirement of the control board 404 for the electromagnet 401. An anti-slip pad is arranged at the contact part between the pressing block 405 and the rotating shaft 8, so that the rotating shaft 8 drives the annular sleeve 406 to rotate through the pressing block 405, and the annular sleeve 406 further drives the worm 5 to rotate, thereby driving the blade 7 to rotate. When it is necessary to rotate the blade 7 by an appropriate angle, the electromagnet 401 is controlled to be powered off again, and then the angles of other blades 7 are further adjusted, so as to realize the rotation of the angles of each blade 7; a shielding layer is arranged outside the annular sleeve 406 to prevent magnetic force leakage. At the same time, a groove can be arranged at the contact part between the pressing block 405 and the rotating shaft 8 to further reduce the magnetic force intensity of the electromagnet 401 so that it will not affect the electrical components in the switch cabinet.

[0025] When several blades 7 all rotate to the horizontal state, the several blades 7 are arranged in a straight line in sequence, and two adjacent blades 7 are in contact with each other. A heat-resistant rubber gasket is arranged at the contact position to improve the sealing effect. The blades 7 are made of high-temperature resistant and fireproof materials, jointly forming a rectangular surface, and the area of the rectangular surface is adapted to the area of the ventilable region in the middle of the positioning frame 9; both the first temperature detection component and the second temperature detection component are temperature sensors and are communicatively connected to the control system (not shown in the figure).

[0026] The water-cooling structure includes a first heat dissipation plate 14 with a cavity. The side away from the drawer structure 16 is serrated to increase the contact area. The top and bottom of the first heat dissipation plate 14 are fixedly connected to the corresponding positioning frames 9 respectively. A circulation pipeline is communicated with one side of the first heat dissipation plate 14, and a heat dissipation box 23 is communicated with one side of the circulation pipeline. The heat dissipation box 23 is installed on the top of the cabinet body 1; a second driving structure is further arranged on the circulation pipeline. The second driving structure is a circulation pump for driving the fluid in the heat dissipation box 23 and the first heat dissipation plate 14 to circulate. The fluid is an insulating and heat-conducting fluid; a first control valve is arranged at the connection of each first heat dissipation plate 14 and the circulation pipeline for controlling the flow rate passing through the corresponding first heat dissipation plate 14; a second control valve is also arranged at the second heat dissipation plate 15 on the side of the cabinet body 1; during use, a semiconductor refrigeration plate and a temperature sensor are further arranged on the heat dissipation box 23. The semiconductor refrigeration plate, the temperature sensor, the first control valve and the second control valve are all communicatively connected to the control system for detecting the temperature and regulating the fluid temperature; and when necessary, the flow rate and coldness of the fluid are controlled through the circulation pump ring, the first control valve and the semiconductor refrigeration plate to adjust the heat absorption efficiency at the corresponding first heat dissipation plate 14 and the second heat dissipation plate 15, thereby increasing the water-cooling efficiency.

[0027] The front and back of the cabinet body 1 are fixedly connected and composed of several first rectangular rings 24, forming several rectangular openings on the front and back of the cabinet body 1 for the insertion of the drawer structure 16. A sealing component is also provided at the contact part of the drawer structure 16 with the front and back of the cabinet body 1, so that when the drawer structure 16 is inserted into the interior of the cabinet body 1, a sealed inner cavity structure is formed; the drawer structure 16 is in the shape of a box with an upward opening, and ventilation holes are provided on the opposite side walls and the bottom wall, facilitating heat transfer. The bottom wall of the box is slidably connected to the top of the corresponding positioning frame 9 through a slide rail for the sliding and pulling of the drawer structure 16, and a corresponding existing safety interlock structure is provided. The side wall of the box is in contact with the first heat dissipation plate 14 to facilitate heat conduction; the sealing component includes a rectangular plate 13 and a second rectangular ring 12. The rectangular plate 13 is fixedly connected to the front of the drawer structure 16 and has a size larger than the square size of the drawer structure 16. A sealing gasket is provided on the side close to the cabinet body 1. After insertion, the rectangular plate 13 covers the rectangular opening of the cabinet body 1 to close the rectangular opening and maintain the seal of the front. The second rectangular ring 12 is fixedly connected to the rectangular opening at the back of the cabinet body 1 and has a size smaller than the square size of the box. A sealing gasket is provided at the part in contact with the box. After insertion, the box presses against the second rectangular ring 12 to maintain the sealing effect at the back; in the second solution with a notch, the inner width of the second rectangular ring 12 is smaller than the width between the slide rails, which is also to maintain the seal at the back; among them, the connection of the electrical components in the drawer structure 16 can be cooperatively connected by means of moving contacts and static contacts. The moving contacts are installed on the back of the drawer structure, and the corresponding static contact group is installed on the outside of the second rectangular ring 12 or on the cabinet body 1. When the drawer structure 16 is inserted into the cabinet body 1, the moving contacts are docked with the static contacts to form a main circuit path.

[0028] A second communication component 3 is provided on one side of the drawer structure 16 located at the back of the cabinet body 1 for communicating the inside and the outside of the inner cavity structure; an air storage tank 22 is provided at the top of the cabinet body 1, and a fire extinguishing gas is filled in the air storage tank 22. A communication hose is provided on one side of the air storage tank 22, and one end of the communication hose is connected to a first communication component 2. A moving component is provided on one side of the first communication component 2, and the moving component is installed on the back of the cabinet body 1 for driving the first communication component 2 to move and connecting the first communication component 2 with the second communication component 3, so that the fire extinguishing gas is injected into the inner cavity structure to extinguish the fire inside it.

[0029] The moving component includes a third driving structure. The output end of the third driving structure is fixedly connected to a first threaded rod 17. A threaded bracket 19 is threadedly connected to the outer side of the first threaded rod 17. A limiting plate is arranged on the outer side of the threaded bracket 19 to limit the rotation of the threaded bracket 19. A fourth driving structure is arranged on one side of the threaded bracket 19. The output end of the fourth driving structure is fixedly connected to a second threaded rod 18. The outer side of the second threaded rod 18 is rotationally connected to the threaded bracket 19. A moving block 20 is threadedly connected to the outer side of the second threaded rod 18. A sliding groove is formed on the side of the moving block 20 close to the threaded bracket 19. The inner wall of the sliding groove is slidably connected to the top and bottom of the threaded bracket 19 to limit the rotation of the moving block 20. A telescopic rod 21 is also fixedly connected to the top of the moving block 20. The end of the telescopic rod 21 is connected to the first communication component 2. The telescopic rod 21 is an electric push rod; both the third driving structure and the fourth driving structure are reversible motors, and the extending directions of the first threaded rod 17, the second threaded rod 18, and the telescopic rod 21 are vertically distributed in a three-dimensional coordinate (X, Y, Z) to adjust the spatial position of the first communication component 2, and protective shells are arranged outside to avoid air pressure impact; first, the motor drives the first threaded rod 17 to rotate, and the first threaded rod 17 drives the threaded bracket 19 to move up and down to adjust the height of the threaded bracket 19 and move the first communication component 2 to a roughly appropriate height. Then, the motor drives the second threaded rod 18 to rotate, further driving the moving block 20 to move horizontally, and cooperating with the extension movement of the telescopic rod 21, the first communication component 2 is moved directly above the second communication component 3. Then, the height is appropriately reduced to connect the first communication component 2 and the second communication component 3. Then, the pump body on the air storage tank 22 and the valve body at the end of the connecting hose are opened to inject the fire extinguishing gas into the inner cavity structure.

[0030] An existing winding mechanism is arranged on the connecting hose to cooperate with the movement of the first communication component 2 to release the connecting hose and maintain the connection of the pipeline. The winding mechanism can adopt an electric reel. The connecting hose can adopt pipelines such as a steel braided hose and a polyurethane (PU) high-pressure hose, which are wound on the electric reel while keeping the pipeline unobstructed; the pump body, the winding mechanism, the second driving structure, the third driving structure, and the fourth driving structure are all communicatively connected to the control system; a protective plate 25 is also arranged on the back of the cabinet body 1. The protective plate 25 is in a U-shaped structure. The bottom of the protective plate 25 is connected to a bottom plate, and the top of the protective plate 25 is hinged with a cover plate to form a pressure relief channel for upward exhaust at the back of the cabinet body 1; the second communication component 3 includes an L-shaped pipe 301. One end of the L-shaped pipe 301 is connected to the back of the drawer structure 16. The top opening of the L-shaped pipe 301 faces upward, and an annular protrusion 302 is arranged near the top opening of the L-shaped pipe 301. The diameter size of the protrusion 302 is larger than the diameter of the top opening of the L-shaped pipe 301.

[0031] A sealing plate 303 is provided at the top opening of the L-shaped pipe 301, and the diameter of the sealing plate 303 is adapted to the inner diameter of the top of the L-shaped pipe 301. A third elastic member 304 is provided at the bottom of the sealing plate 303, and a bracket 305 is provided at the bottom of the third elastic member 304. When pressure is relieved, the gas pushes the sealing plate 303 to move outside the L-shaped pipe 301, opening the L-shaped pipe 301 to allow the gas to escape, playing a role in pressure relief. After the pressure relief is over, the third elastic member 304 pulls the sealing plate 303 back to its original position again, closing the L-shaped pipe 301 to achieve a sealing effect. The third elastic member 304 is a spring, and the top and bottom are fixedly connected to the middle parts of the sealing plate 303 and the bracket 305 respectively, playing a role in resetting the sealing plate 303 and moving the sealing plate 303 to the pipe orifice to seal it. The height of the top of the bracket 305 is adapted to the height of the middle part of the protruding part 302, and the distance between the top of the protruding part 302 and the bracket 305 is greater than the thickness of the sealing plate 303.

[0032] The first communication component 2 includes a fixed block 201 with an opening in the middle. The inner side of the fixed block 201 is fixedly sleeved on the outer side of the fixed pipe 202. The top of the fixed pipe 202 is communicated with the end of the communication hose. A fourth elastic member 203 is provided at the bottom of the fixed block 201, and a sealing ring 204 is connected to the bottom of the fourth elastic member 203. The inner side of the sealing ring 204 is sleeved on the outer side of the fixed pipe 202, and the outer diameter of the sealing ring 204 is larger than the inner diameter of the L-shaped pipe 301 for sealing the top of the L-shaped pipe 301. The fourth elastic member 203 is a spring, and the top and bottom are fixedly connected to the fixed block 201 and the sealing ring 204 respectively. The outer diameter of the fixed pipe 202 is smaller than the inner diameter of the L-shaped pipe 301, and an arc-shaped opening is provided at the bottom of the fixed pipe 202. When the fixed pipe 202 is inserted into the L-shaped pipe 301, it is communicated with the inside of the L-shaped pipe 301 through the arc-shaped opening to inject the fire extinguishing gas into the inner cavity structure. When the fixed pipe 202 and the L-shaped pipe 301 are communicated, one end of the bottom of the fixed pipe 202 is inserted into the L-shaped pipe 301 and pushes the sealing plate 303 downward to the top of the bracket 305, that is, the middle position corresponding to the protruding part 302, while the upper sealing ring 204 covers the top of the L-shaped pipe 301 to seal it and compress the spring at the same time. Then, after the gas enters the fixed pipe 202, it flows out through the arc-shaped opening at the bottom of the fixed pipe 202 and enters the protruding part 302, and further enters the inner cavity structure along the L-shaped pipe 301.

[0033] A heat conducting plate is also provided between the upper and lower drawer structures 16 for maintaining the temperature inside the cabinet 1 and playing a role in isolation. The heat conducting plate is distributed vertically downward to guide the air flow. A chamber is provided inside the heat conducting plate, and the chamber is communicated with the circulation pipeline through a pipeline, and a first control valve is provided at the connection for facilitating the absorption of the heat discharged from the bottom upward and reducing the influence of the heat in the lower drawer structure 16 on the upper drawer structure 16.

[0034] During use, first, the temperature of the internal and external environments of the cabinet body 1, as well as the internal cavity structure, that is, the heat distribution, smoke content, and temperature data inside the drawer structure 16, are detected by sensors, and the data is fed back to the control system. Threshold values are set for the environmental temperature of the cabinet body 1 and the internal environment temperature inside the internal cavity structure based on historical data.

[0035] During normal operation, when the temperature inside the cabinet body 1 is lower than the set temperature, the temperature outside the cabinet body 1 is lower than the temperature inside the cabinet body 1, and the smoke concentration is lower than the set threshold value, and there is no abnormality in the heat distribution: By adjusting the opening and closing degrees of the second louver structures 11 at the top and bottom of the cabinet body 1 and the rotation speed of the fan; To avoid frequent adjustment, according to the difference between the internal and external environments, it is set into different grade ranges, and according to different grade ranges, the corresponding opening and closing degrees and rotation speeds are selected to achieve ventilation of the internal environment of the cabinet body 1; At the same time, inside the drawer structure 16, through the corresponding difference from the internal environment temperature of the cabinet body 1, the opening and closing degree of the first louver structure 10 is adjusted to the corresponding grade, so that the air flow enters from below and exits from above, and the heat inside the drawer structure 16 is discharged.

[0036] In the high-temperature mode: When the temperature outside the cabinet body 1 is higher than the internal temperature, the opening and closing degree is gradually reduced, and its rotation speed is increased to increase the internal circulating air flow rate, reduce the entry of external air, and divide it into different gradient grades according to the temperature difference; According to different grades, the corresponding grade of water-cooling structure is started, and the temperature of the internal environment of the cabinet body 1 is maintained through the heat conduction plate and the second heat dissipation plate 15 on the side wall of the cabinet body 1.

[0037] When heat accumulation occurs locally and causes overheating: that is, when it exceeds the set value, first, the opening and closing degree and the opening and closing direction of the first louver structure 10 are used to ventilate and cool the local area. If the temperature still continues to rise, the first heat dissipation plate 14 on the corresponding water-cooling structure is started, and by adjusting its flow rate, the internal fluid movement is used to cool the corresponding drawer structure 16, and the first louver structure 10 is gradually closed, and the ventilation and cooling are gradually switched to water-cooling treatment to reduce the entry of oxygen; And when the smoke exceeds the set value, fire extinguishing gas is injected to accelerate the fire extinguishing efficiency.

Claims

1. An intelligent low-voltage withdrawable switch cabinet, characterized in that: The cabinet (1) comprises a cabinet body (1), wherein a plurality of drawer structures (16) and a plurality of cooling mechanisms are arranged in the cabinet body (1), and the plurality of cooling mechanisms are respectively located on the outside of the corresponding drawer structures (16), and after the drawer structures (16) are inserted into the cabinet body (1), a plurality of inner cavity structures are formed; The cabinet (1) is also provided with a ventilation assembly for ventilating the entire interior of the cabinet (1); The cooling mechanism comprises a first louver structure (10) and a water cooling structure, which are used for ventilation and water cooling respectively; The cabinet (1) and the inner cavity structure are both provided with detection mechanisms, which are used to detect the temperature inside the cabinet (1) and the inner cavity structure, as well as the heat distribution and smoke concentration inside the inner cavity structure, respectively; The cabinet (1) is also provided with a control system, and the control system is respectively connected to the ventilation assembly, the first louver structure (10), the water cooling structure and the detection mechanism, so as to compare the temperature difference between the interior of the cabinet (1) and the exterior of the inner cavity structure and the heat distribution in the inner cavity structure based on the detection values ​​obtained by the detection mechanism, so as to dynamically adjust the size and direction of the airflow in and out of the first louver structure (10) and start and gradually switch to the water cooling structure during normal ventilation and heat dissipation, heat accumulation stage and fire stage.

2. The intelligent low-voltage withdrawable switch cabinet according to claim 1 is characterized in that: The ventilation assembly comprises a second louver structure (11) and a fan arranged inside the cabinet (1); the second louver structure (11) is located at the top and bottom of the cabinet (1) and is used to ventilate the cabinet (1); The cabinet (1) is also provided with a second temperature detection component on the outside thereof, for detecting the external ambient temperature of the cabinet (1). The control system is respectively connected to the second temperature detection component, the second louver structure (11) and the fan for communication. The control system compares the temperature inside and outside the cabinet (1), and controls the opening and closing size of the second louver structure (11) and the speed of the fan based on the temperature difference between the inside and outside of the cabinet (1).

3. The intelligent low-voltage withdrawable switch cabinet according to claim 2 is characterized in that: The first louver structure (10) and the second louver structure (11) both comprise a positioning frame (9), a first cavity being formed on one side of the positioning frame (9), and a plurality of blades (7) being rotatably connected to the middle of the positioning frame (9), the ends of the plurality of blades (7) passing through the positioning frame (9) and extending into the first cavity, a transmission assembly having a self-locking function being provided at the ends of the blades (7), one end of the transmission assembly being connected to a first drive structure, and the first drive structure being installed in the first cavity, and the rotation angle of the blades (7) being adjusted by the first drive structure to control the opening and closing size and the diversion direction of the first louver structure (10) and the second louver structure (11); The ends of the plurality of blades (7) are each provided with an angle sensor for detecting a rotation angle; the plurality of angle sensors, the transmission assembly and the first drive structure are all in communication with the control system.

4. The intelligent low-voltage withdrawable switch cabinet according to claim 3 is characterized in that: The transmission assembly comprises a worm wheel (6), the inner side of the worm wheel (6) being fixedly sleeved on the end of the blade (7), the outer side of the worm wheel (6) being meshingly connected with a worm (5) having a hollow structure, the inner side of the worm (5) being rotatably sleeved on the outer side of a rotating shaft (8), and one end of the rotating shaft (8) being fixedly connected to the output shaft of the first driving structure; A plurality of locking assemblies (4) are sleeved on the outer side of the rotating shaft (8), and the plurality of locking assemblies (4) are in communication with the control system. The plurality of locking assemblies (4) are respectively connected to corresponding worm gears (5). When the rotating shaft (8) needs to drive the worm gear (5) to rotate, the corresponding worm gear (5) and the rotating shaft (8) are locked, so that each blade (7) can be adjusted individually.

5. The intelligent low-voltage withdrawable switch cabinet according to claim 4 is characterized in that: The locking assembly (4) comprises an annular sleeve (406), the annular sleeve (406) being sleeved on the outside of the rotating shaft (8), and one end of the annular sleeve (406) being fixedly connected to one end of the worm (5); A second cavity is provided inside the annular sleeve (406), a pressing block (405) is provided on the inner wall of the second cavity, an end portion of the pressing block (405) extending in the direction of the rotating shaft (8) passes through the second cavity, and a first elastic member (402) is provided on a side of the pressing block (405) away from the rotating shaft (8) for pulling the pressing block (405) to move away from the rotating shaft (8); A control board (404) is also provided in the second cavity, the middle portion of the control board (404) is rotatably connected to the inner wall of the second cavity, an electromagnet (401) is provided on the side of the control board (404) away from the clamping block (405), the electromagnet (401) is in communication with the control system, one side of the electromagnet (401) is connected to the inner wall of the second cavity, and a second elastic member (403) is provided on the side of the control board (404) away from the electromagnet (401) for pulling the control board (404) to reset.

6. The intelligent low-voltage withdrawable switch cabinet according to claim 3 is characterized in that: When the plurality of blades (7) are rotated to a horizontal state, the plurality of blades (7) are arranged in a straight line, and two adjacent blades (7) are in contact, so that the plurality of blades (7) together form a rectangular surface, and the area of ​​the rectangular surface formed by the plurality of blades (7) is adapted to the ventilated area surface in the middle of the positioning frame (9).

7. The intelligent low-voltage withdrawable switch cabinet according to claim 3 is characterized in that: The water cooling structure comprises a first heat sink (14) having a cavity, the top and bottom of the first heat sink (14) being fixedly connected to the corresponding positioning frame (9) respectively, one side of the first heat sink (14) being connected to a circulation pipeline, one side of the circulation pipeline being connected to a heat sink (23), and the heat sink (23) being mounted on the top of the cabinet (1); The circulation pipeline is also provided with a second driving structure, the second driving structure being in communication with the control system and being used for driving the fluid in the heat dissipation box (23) and the first heat dissipation plate (14) to circulate; A first control valve is provided at the connection between each first heat sink (14) and the circulation pipeline, and the first control valve is in communication with the control system and is used to control the flow passing through the corresponding first heat sink (14).

8. The intelligent low-voltage withdrawable switch cabinet according to claim 6 is characterized in that: A second connecting component (3) is provided on one side of the drawer structure (16) located at the back of the cabinet (1), and is used to connect the inside and outside of the inner cavity structure; A gas storage box (22) is arranged on the top of the cabinet (1), the interior of the gas storage box (22) is filled with fire extinguishing gas, a connecting hose is arranged on one side of the gas storage box (22), one end of the connecting hose is connected to a first connecting component (2), a moving component is arranged on one side of the first connecting component (2), the moving component is installed on the back of the cabinet (1), and is used to drive the first connecting component (2) to move, so as to connect the first connecting component (2) with the second connecting component (3), so as to inject the fire extinguishing gas into the inner cavity structure.

9. The intelligent low-voltage withdrawable switch cabinet according to claim 8, characterized in that: The back of the cabinet (1) is further provided with a protective plate (25), the bottom of the protective plate (25) is connected to a bottom plate, and the top of the protective plate (25) is hingedly connected to a cover plate, so as to form a pressure relief channel for exhausting air upwards at the back of the cabinet (1); The second connecting component (3) comprises an L-shaped tube (301) located at the back of the drawer structure (16), and one end of the L-shaped tube (301) is connected to the drawer structure (16), the top opening of the L-shaped tube (301) is upward, and an annular protrusion (302) is provided near the top opening of the L-shaped tube (301), and the diameter of the protrusion (302) is larger than the diameter of the top opening of the L-shaped tube (301); A sealing plate (303) is provided at the top opening of the L-shaped tube (301), and the diameter of the sealing plate (303) is adapted to the inner diameter of the top of the L-shaped tube (301). A third elastic member (304) is provided at the bottom of the sealing plate (303), and a bracket (305) is provided at the bottom of the third elastic member (304), so that when pressure is released, the gas pushes the sealing plate (303) to move to the outside of the L-shaped tube (301), and the L-shaped tube (301) is opened to allow the gas to be discharged.

10. The intelligent low-voltage withdrawable switch cabinet according to claim 9, characterized in that: The height of the top of the bracket (305) is adapted to the height of the middle of the protrusion (302), and the distance between the top of the protrusion (302) and the bracket (305) is greater than the thickness of the sealing plate (303); The first connecting component (2) comprises a fixed block (201) with a hole in the middle, the inner side of the fixed block (201) is fixedly sleeved on the outer side of the fixed tube (202), the top of the fixed tube (202) is connected to the end of the connecting hose, and a fourth elastic member (203) is provided at the bottom of the fixed block (201), the bottom of the fourth elastic member (203) is connected to a sealing ring (204), the inner side of the sealing ring (204) is sleeved on the outer side of the fixed tube (202), and the outer diameter of the sealing ring (204) is larger than the inner diameter of the L-shaped tube (301), and is used to seal the top of the L-shaped tube (301); The outer diameter of the fixed tube (202) is smaller than the inner diameter of the L-shaped tube (301), and an arc-shaped opening is provided at the bottom of the fixed tube (202), so that when the fixed tube (202) is inserted into the interior of the L-shaped tube (301), the fixed tube (202) is connected to the interior of the L-shaped tube (301) through the arc-shaped opening, and the fire extinguishing gas is injected into the inner cavity structure.

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