Overhead centrifugal fan for energy storage container

Abstract

The application relates to a top-mounted centrifugal fan for an energy storage container, which has an external control box and a main controller, and further comprises a main shell and a mounting flange, the main shell is internally provided with an inner cavity and a mounting groove, the upper and lower ends of the inner cavity are both provided with openings, the upper end surface of the main shell is provided with an explosion-proof cover plate, the lower end surface of the main shell is provided with a fan cover plate, the inner cavity is closed by the explosion-proof cover plate and the fan cover plate, the fan cover plate is provided with an air inlet, the air inlet is communicated with the inner cavity, the inner cavity is provided with a main fan, the two ends of the main shell are provided with oppositely arranged air outlet grooves, each air outlet groove is provided with an air outlet, the main shell is provided with a control assembly, each air door plate is synchronously separated from an air outlet cylinder by the driving of an actuator on a transmission shaft, the driving of a connecting block on each driven rod and the driving of each driven rod on a rotating block when the main fan is started, and the main fan discharges gas after each air door plate is separated from the air outlet cylinder. The application is ingenious, convenient and practical.

Description

Technical Field

[0001] This invention relates to the field of exhaust systems for energy storage containers, and particularly to a top-mounted centrifugal fan for energy storage containers. Background Technology

[0002] Energy storage containers are an important component of energy stations such as photovoltaic power stations and wind-solar hybrid power stations. They consist of a cabinet and energy storage batteries arranged in the cabinet. For each energy station, thermal runaway of energy storage batteries is a major safety threat. When thermal runaway occurs, a large amount of flammable gas will accumulate, and the pressure inside the cabinet will rise rapidly, which may lead to the cabinet exploding and seriously endanger the safety of other equipment and personnel in the surrounding area.

[0003] In existing technologies, when the temperature of the batteries inside an energy storage container is too high, the battery cells are prone to thermal runaway, generating high-temperature or flammable gases inside the container. If the high-temperature gases cannot be discharged in time, they will cause great damage to the container and the batteries inside. Therefore, it is necessary to develop a device that can quickly discharge high-temperature or flammable gases from the energy storage container. Summary of the Invention

[0004] The purpose of this invention is to provide a top-mounted centrifugal fan for energy storage containers, which can quickly and efficiently discharge the gas inside the energy storage container. It has an ingenious structure and is convenient and practical.

[0005] The technical scheme for achieving the object of the present application is as follows: the present application relates to a main casing that can be installed on a container and a mounting flange fixed to the main casing, wherein the main casing is provided with an inner cavity and a mounting groove, the upper and lower ends of the inner cavity are both provided with openings, the upper end face of the main casing is provided with an explosion-proof cover plate, the lower end face of the main casing is provided with a fan cover plate, the inner cavity is closed by the explosion-proof cover plate and the fan cover plate, the fan cover plate is provided with an air inlet that is in communication with the inner cavity, the inner cavity is provided with a main fan that corresponds to the air inlet and is electrically connected to the main controller, the main fan is fixedly installed on the explosion-proof cover plate, the two ends of the main casing are provided with oppositely arranged air outlet grooves, each air outlet groove is provided with an air outlet, each air outlet groove is in communication with the inner cavity through the air outlet, the main casing is provided with a control assembly that can simultaneously control the opening and closing of each air outlet, the control assembly comprises an actuator fixedly arranged in the mounting groove and electrically connected to the main controller, a transmission shaft fixed to the output end of the actuator, a connecting block fixed to the transmission shaft, a driven rod oppositely arranged on both sides of the connecting block and rotationally connected to the connecting block, a rotating block rotationally connected to each driven rod, a driven shaft fixed to each rotating block and rotationally arranged in each air outlet groove, and a valve plate fixed to each driven shaft, the axis of the transmission shaft is parallel to the axis of the driven shaft, each air outlet groove is provided with an air outlet on the end face, and the inner contour of the air outlet cylinder body is the same as the contour of the air outlet, the air outlet groove is in communication with the air outlet through the air outlet cylinder body, each valve plate is pressed against the end face of the corresponding air outlet cylinder body away from the air outlet and closes the inner cavity before the actuator is started, each valve plate is driven by the actuator to drive the transmission shaft, the connecting block to drive each driven rod, and each driven rod to drive the rotating block to be synchronized and separated from the air outlet cylinder body when the main fan is started, and the main fan discharges gas after each valve plate is separated from the air outlet cylinder body.

[0006] Furthermore, the bottom of each valve plate is provided with a bottom flange integrally formed with the valve plate, each side of each valve plate is provided with a side flange integrally formed with the valve plate, the side flanges on the valve plate are oppositely arranged, the bottom flange extends to one side of the air outlet cylinder body in a direction perpendicular to the valve plate, each side flange extends to one side of the air outlet cylinder body in a direction perpendicular to the valve plate, and the end face of each air outlet cylinder body away from the inner cavity is provided with a waterproof rubber strip.

[0007] Further, the two sides of each air outlet cylinder are provided with limiting side plates, one end of each limiting side plate is integrally formed with the air outlet cylinder, the other side of each limiting side plate is flipped to one side of the side turning edge in a direction perpendicular to the air valve plate, each side turning edge is provided with a magnetic attraction part, each limiting side plate is provided with an electromagnet corresponding to each magnetic attraction part and electrically connected with the main controller, the side edge of each limiting side plate and the air outlet cylinder forms a limiting insertion slot, each air valve plate is positioned and connected with the main shell through the insertion and cooperation of each side turning edge with the limiting insertion slot before the actuator is started or after the exhaust is completed, and the magnetic attraction cooperation of each electromagnet and the magnetic attraction part.

[0008] Further, the above-mentioned driven shaft includes a rotating shaft part in cross-section in a circular shape rotatingly connected with each side wall of the air outlet slot, and a connecting part in cross-section in a square shape arranged between each rotating shaft part, the connecting part is integrally formed with each rotating shaft part, and each air valve plate is fixed on the connecting part by the locking piece to form a surface contact with the connecting part.

[0009] Further, each air outlet slot is provided with a foreign matter removing assembly capable of removing accumulated water or snow in the air outlet slot, each foreign matter removing assembly corresponds to each driven shaft, the foreign matter removing assembly includes a first rotating rod fixed on each rotating shaft part, a second rotating rod rotatingly connected with each first rotating rod, a sliding block horizontally slidingly arranged on each side wall of the air outlet slot and rotatingly connected with the second rotating rod, a connecting rod fixed on each sliding block, and a foreign matter removing block arranged on each connecting rod and integrally formed with each connecting rod, the first rotating rod and the second rotating rod are arranged in a V shape, the foreign matter removing block extends from one side of the air outlet slot to the other side of the air outlet slot, and each foreign matter removing block removes the accumulated water or snow in the air outlet slot through the driving of the first rotating rod by the rotating shaft part, the rotating connection of the first rotating rod and the second rotating rod, and the cooperation of the second rotating rod and the sliding block.

[0010] Further, each side wall of the above-mentioned air outlet slot is provided with a side edge arc slot coaxially arranged with the axis of the rotating shaft part, each first rotating rod is fixed with a connecting shaft at an end away from the rotating shaft part, one end of each second rotating rod is rotatingly connected with the connecting shaft, the other end of each second rotating rod is rotatingly connected with the sliding block, each connecting shaft is slidingly arranged in the corresponding side edge arc slot, each side wall of the air outlet slot is provided with a horizontally arranged side edge sliding groove, the upper and lower end faces of each side edge sliding groove are provided with limiting sliding grooves, each sliding block is slidingly arranged in the corresponding side edge sliding groove, the upper and lower end faces of each sliding block are provided with limiting sliding blocks, and each sliding block is slidingly connected on the corresponding side wall of the air outlet slot through the sliding cooperation with the side edge sliding groove and the sliding cooperation of each limiting sliding block with the corresponding limiting sliding groove.

[0011] Further, the end face of each impurity removal block away from the inner cavity is provided with an impurity removal groove for removing accumulated water and snow, the impurity removal groove extends from one side of the impurity removal block to the other side of the impurity removal block, the impurity removal groove comprises a guide slope, an arc-shaped guide surface and a discharge slope, the guide slope and the discharge slope are both tangent to the arc-shaped guide surface, the guide slope is below the discharge slope, and the guide slope and the discharge slope are arranged at an acute angle, each impurity removal block is driven to slide to the outlet of the air outlet groove by the sliding block, and the accumulated water or snow is discharged through the cooperation of the guide slope, the arc-shaped guide surface and the discharge slope during the sliding process.

[0012] Further, the impurity removal block is further provided with an impurity removal part in triangular cross section, the impurity removal block is provided with a protruding part, both sides of the protruding part are provided with rotating holes, the impurity removal part is provided with oppositely arranged extension parts, the sum of the length of each extension part and the length of the protruding part is the same as the length of the impurity removal block, each extension part is provided with a side edge rotating rod matched with the rotating hole, each side edge rotating rod is sleeved with a torsional spring, and both ends of each torsional spring are fixedly connected with the side edge rotating rod and the rotating hole, respectively, the impurity removal part is pressed against the bottom surface of the air outlet groove through the cooperation of each side edge rotating rod and rotating hole and the continuous force of the torsional spring.

[0013] Further, the inner cavity is provided with two oppositely arranged upper guide plates and two oppositely arranged lower guide plates, each upper guide plate corresponds to each lower guide plate, one end of each upper guide plate is fixed to the upper surface of the inner cavity, the other end of each upper guide plate extends obliquely to the corresponding air outlet, one end of each lower guide plate is fixed to the fan cover plate, the other end of each lower guide plate extends obliquely to the corresponding air outlet, the inner cavity is further provided with a front guide plate and a rear guide plate, the upper ends of the front guide plate and the rear guide plate are fixed in the inner cavity, the lower ends of each front guide plate and rear guide plate extend obliquely to the side of the main fan, each upper guide plate and the inner wall of the air outlet cylinder body are provided with a connecting plate, each connecting plate is provided with a valve opening and closing detection device for detecting the opening and closing of the valve plate, and the valve opening and closing detection device is electrically connected with the main controller.

[0014] Further, the outer control box is fixedly provided with a sub-control box, the sub-control box is fixedly installed with a sub-controller and a storage battery capable of providing power supply for the sub-controller, a plurality of standby fans are fixedly provided on the fan cover plate, each standby fan is electrically connected with the sub-controller, the sub-control box is provided with a control switch capable of controlling the on-off of the sub-controller, the control switch is electrically connected with the storage battery and the sub-controller at both ends, the fan cover plate is provided with a plurality of bottom air outlets corresponding to each standby fan, an auxiliary control assembly capable of controlling the opening and closing of the bottom air outlet is arranged between the fan cover plate and the corresponding bottom air outlet, the auxiliary control assembly comprises a bottom frame fixed on the fan cover plate, a bottom sliding groove arranged on the bottom frame, a bottom cylinder fixed on the fan cover plate, and a bottom sealing plate slidingly arranged on the bottom frame under the drive of the bottom cylinder, each bottom cylinder is electrically connected with the main controller, a driving block is fixedly arranged on the bottom sealing plate, the telescopic end of the bottom cylinder is fixed on the driving block, the groove bottom of the bottom sliding groove is provided with a plurality of limiting sliding holes, the extension direction of each limiting sliding hole is arranged in parallel with the extension direction of the bottom sliding groove, the bottom sealing plate is provided with a limiting sliding rod matched with each limiting sliding hole, a compression spring is arranged in each limiting sliding hole, and the two ends of the compression spring are fixedly connected with the hole bottom of the limiting sliding hole and the limiting sliding rod, respectively, each bottom sealing plate is slidably connected with the bottom frame through the driving of the driving block by the electricity of the bottom cylinder and closes the corresponding bottom air outlet, and the corresponding bottom air outlet is opened by the continuous force of the compression spring on the limiting sliding rod after the main controller loses power;

[0015] Each bottom guide plate and air outlet is provided with an auxiliary door pushing assembly capable of opening the air door under the drive of the sub-controller, the auxiliary door pushing assembly comprises a rotating seat arranged on the upper end of the bottom guide plate and integrally formed with the bottom guide plate, a door pushing rod rotatably connected with the rotating seat, a door pushing guide wheel arranged on the end of the door pushing rod away from the rotating seat, an auxiliary motor fixed on the fan cover plate, a lead screw fixed on the output end of the auxiliary motor, and a lifting block arranged on the lead screw, the door pushing rod is provided with a sliding through groove arranged in parallel with the extension direction of the door pushing rod, each side wall of the sliding through groove is provided with a side sliding groove arranged in parallel with the extension direction of the sliding through groove, the two sides of the lifting block are provided with side rotating rods, the upper end of the lead screw is rotatably connected with the upper guide plate, the lifting block is slidingly arranged on the door pushing rod through the thread cooperation of the lead screw and the lifting screw hole and the cooperation of each side rotating rod and the corresponding side sliding groove, and each door pushing guide wheel opens each air door through the synchronous movement of each lifting block and the sliding through groove.

[0016] The present invention has positive effects: (1) The present invention sets a main fan in the inner cavity. The main fan draws in the smoke in the container under the drive of the main controller. At the same time, the main controller drives the actuator to open the valve plates on both sides synchronously. Through the double door design, the exhaust efficiency of the main fan can be greatly enhanced in the effective space. It has good adjustability and applicability. At the same time, by setting the position of each valve plate to be a certain distance away from the main fan and setting an exhaust cylinder, it is effectively ensured that each valve plate is tightly and firmly pressed against the exhaust cylinder before and after exhaust, avoiding water vapor or other impurities from entering the inner cavity and ensuring the waterproofness of the inner cavity. At the same time, two valve plates are set. When one valve plate is damaged, exhaust can continue through the other valve plate without affecting the overall exhaust efficiency. Thus, the smoke in the container is fully and efficiently exhausted. The structure is ingenious, convenient and practical.

[0017] (2) By setting a bottom flange at the bottom of the valve plate and a side flange on the side of each valve plate, and setting a waterproof strip on the end face of the air outlet cylinder, the present invention can effectively prevent impurities or water vapor from entering the inner cavity. On the other hand, the setting of the waterproof strip also further ensures the sealing of the connection between the valve plate and the air outlet cylinder. At the same time, setting each valve plate inside the air outlet slot greatly reduces the impact of severe weather such as wind, snow and hail on valve opening and closing, making it convenient and practical.

[0018] (3) The present invention provides limiting side plates on both sides of the air outlet cylinder body, forming a limiting slot between the limiting side plates and the air outlet cylinder body. Through the cooperation of the side flange and the limiting slot, as well as the cooperation of the electromagnet and the magnetic attraction part, the firmness of each valve plate after being connected to the air outlet cylinder body is ensured, and the sealing of the connection between each valve plate and the air outlet cylinder body is further ensured, which is efficient and convenient.

[0019] (4) The present invention integrates the driven shaft with a circular cross-section rotating shaft and a square cross-section connecting part. The circular rotating shaft ensures the smoothness of the driven shaft rotation, and the square connecting part contacts the valve plate surface, which further improves the sealing between the valve plate and the exhaust cylinder, as well as the stability of the connection between the valve plate and the driven shaft. It is practical and convenient.

[0020] (5) The present invention sets a cleaning component in the air outlet slot. The first rotating rod drives the second rotating rod and the sliding block on the second rotating rod to slide under the drive of the driven shaft. When the valve plate is opened, the cleaning block can be driven synchronously, thereby driving the cleaning block to discharge the water, snow and impurities in the air outlet slot. This effectively avoids the blockage of the air outlet slot by snow, impurities or hail, which affects the overall air outlet effect. It is efficient and convenient.

[0021] (6) The first rotating rod and the second rotating rod are rotationally connected through the connecting shaft, the cooperation of the connecting shaft and the side edge arc groove ensures the rotation limiting of the first rotating rod and the second rotating rod, the cooperation of the sliding block and the side edge sliding groove and the cooperation of the side edge sliding block and the side edge sliding groove ensure the stability of the sliding block and the impurity removal block during the impurity removal process, and the limiting also limits the impurity removal of the impurity removal block, avoids the separation of the impurity removal block and the air outlet groove, and is stable and practical.

[0022] (7) The impurity removal groove is set as the cooperation of the guide slope, the arc guide surface and the guide-out slope, the guide slope guides the water, snow and impurities for removal, the arc guide surface can smoothly guide the water, snow and impurities to the guide-out slope, and the setting of the arc guide surface can also greatly avoid the accumulation of impurities, snow or large hail during the impurity removal process, ensure that the snow, impurities or hail are fully and efficiently discharged, and is convenient and practical.

[0023] (8) The impurity removal part is set as a triangular shape, the impurity removal part is pressed against the bottom surface of the air outlet groove through the cooperation of the various side edge rotating rods and rotating holes and the continuous force exertion of the torsion spring, and during the movement of the impurity removal block, the water, snow or impurities are removed in a bottom-up manner, thereby ensuring the comprehensiveness and efficiency of the water, snow or impurities in the air outlet groove, and the application is convenient and practical.

[0024] (9) The gas door opening and closing detection device is set to monitor the opening and closing of the gas door plate in real time, so that the operator can detect the exhaust condition in the inner cavity in real time, avoid the failure of the actuator and the various gas door plates driven by the actuator, ensure that the smoke in the container can be safely and effectively discharged, and the application is safe and practical.

[0025] (10) The vice controller is set, the vice controller is powered by the storage battery, the corresponding bottom air port is opened by the continuous force exertion of the compression spring on the limiting sliding rod after the main controller loses power, the vice controller drives the standby fan to inhale the smoke in the container, the lifting block is slidably arranged in the sliding through groove of the door pushing rod through the driving of the auxiliary motor on the lead screw and the cooperation of the lead screw and the lifting screw hole, and the door pushing guide wheel pushes the various gas door plates to be opened through the lifting of the lifting block, so that the driving of the gas door plate after the main controller loses power is realized, the smoke in the container is discharged after the main controller loses power, and the application is stable, convenient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to make the content of the application more easily understood, the application will be further described in detail below according to specific embodiments and in combination with the drawings, in which

[0027] Figure 1 This is a schematic diagram of the overall structure of the top-mounted centrifugal fan for the energy storage container in this invention;

[0028] Figure 2 This is a top view of the overall structure of the external control box in this invention;

[0029] Figure 3 This is a cross-sectional view of the overall structure of the main housing in this invention;

[0030] Figure 4 This is a schematic diagram of the overall structure of the control component in this invention;

[0031] Figure 5 This is a schematic diagram of the connection structure between the driven shaft and the valve plate in this invention;

[0032] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0033] Figure 7 This is a cross-sectional view of the connection structure between the driven shaft and the valve plate in this invention;

[0034] Figure 8 This is a schematic diagram of the overall structure of the driven shaft in this invention;

[0035] Figure 9 This is a schematic diagram of the overall structure of the valve plate in this invention;

[0036] Figure 10 This is a schematic diagram of the connection structure between the connecting plate and the valve opening / closing detection device in this invention;

[0037] Figure 11 for Figure 3 Enlarged view of point A in the middle;

[0038] Figure 12 This is a cross-sectional view of the overall structure of the impurity removal block in this invention;

[0039] Figure 13 This is a cross-sectional view of the overall structure of the impurity removal section in this invention;

[0040] Figure 14 This is a cross-sectional view of the overall structure of the auxiliary control component in this invention;

[0041] Figure 15 This is a top view of the overall structure of the bottom frame and bottom sealing plate in this invention;

[0042] Figure 16 This is a schematic diagram of the overall structure of the auxiliary door pushing assembly in this invention;

[0043] Figure 17 This is a cross-sectional view of the connection structure between the push door rod and the push door guide wheel in this invention;

[0044] Figure 18 The connection structure diagram of the door pushing rod and the door pushing guide wheel in the application is shown in the figure.

[0045] The reference signs are as follows:

[0046] External control box 1; main controller 11; auxiliary control box 12; auxiliary controller 13; storage battery 14; control switch 15; standby fan 16;

[0047] Main shell 2; air outlet 2a; air outlet cylinder 2b; limiting side plate 2c; electromagnet 2d; limiting slot 2e; air outlet slot 20; explosion-proof cover plate 21; fan cover plate 22; mounting flange 23; rear guide plate 24; upper guide plate 25; connecting plate 251; air valve opening and closing detection device 252; lower guide plate 26; main fan 27; air inlet 28; bottom air inlet 29;

[0048] Auxiliary door pushing assembly 3; rotating seat 31; auxiliary motor 32; lead screw 33; door pushing rod 34; sliding slot 35; side sliding slot 351; lifting block 36; lifting screw hole 361; side rotating rod 362; door pushing guide wheel 37;

[0049] Auxiliary control assembly 4; bottom frame 41; bottom sliding slot 42; bottom air cylinder 43; driving block 44; bottom sealing plate 45; limiting sliding rod 46; limiting sliding hole 47; compression spring 48;

[0050] Control assembly 5; actuator 51; transmission shaft 52; connecting block 53; driven rod 54; rotating block 55; driven shaft 56; rotating shaft part 561; connecting part 562; air valve plate 57; side turning edge 571; bottom turning edge 572; waterproof rubber strip 573; magnetic attraction part 574;

[0051] Impurity removal assembly 6; protruding part 60; rotating hole 601; torsional spring 602; first rotating rod 61; second rotating rod 62; side edge sliding slot 63; limiting sliding slot 631; sliding block 64; limiting sliding block 641; connecting rod 65; impurity removal block 66; connecting shaft 67; side edge arc slot 68; impurity removal slot 69; guide inclined surface 691; arc-shaped guide surface 692; guide-out inclined surface 693;

[0052] Impurity removal part 7; extension part 71; side edge rotating rod 72. DETAILED DESCRIPTION

[0053] See Figures 1 to 18The application has an external control box 1 which can be installed in the energy storage container, a main controller 11 installed in the external control box 1, a main shell 2 which can be installed on the container, and a mounting flange 23 fixed on the main shell 2, the main shell 2 is provided with an inner cavity and a mounting groove, the upper and lower ends of the inner cavity are provided with openings, the upper end surface of the main shell 2 is provided with an explosion-proof cover plate 21, the lower end surface of the main shell 2 is provided with a fan cover plate 22, the inner cavity is closed by the explosion-proof cover plate 21 and the fan cover plate 22, the fan cover plate 22 is provided with an air inlet 28, the air inlet 28 is communicated with the inner cavity, the inner cavity is provided with a main fan 27 corresponding to the air inlet 28 and electrically connected with the main controller 11, the main fan 27 is fixedly installed on the explosion-proof cover plate 21, the two ends of the main shell 2 are provided with oppositely arranged air outlet grooves 20, each air outlet groove 20 is provided with an air outlet 2a, each air outlet groove 20 is communicated with the inner cavity through the air outlet 2a, the main shell 2 is provided with a control assembly 5 which can simultaneously control the opening and closing of each air outlet 2a, the control assembly 5 comprises an actuator 51 fixedly arranged in the mounting groove and electrically connected with the main controller 11, a transmission shaft 52 fixedly arranged on the output end of the actuator 51, a connecting block 53 fixedly arranged on the transmission shaft 52, a driven rod 54 oppositely arranged on the two sides of the connecting block 53 and rotationally connected with the connecting block 53, a rotating block 55 rotationally connected with each driven rod 54, a driven shaft 56 fixedly arranged on each rotating block 55 and rotationally arranged in each air outlet groove 20, and a valve plate 57 fixedly arranged on each driven shaft 56, the axis of the transmission shaft 52 is parallel to the axis of the driven shaft 56, the end surface of each air outlet groove 20 with the air outlet 2a is fixedly provided with an air outlet cylinder body 2b, the inner contour of the air outlet cylinder body 2b is the same as the contour of the air outlet 2a, the air outlet groove 20 is communicated with the air outlet 2a through the air outlet cylinder body 2b, each valve plate 57 is pressed on the end surface of the air outlet cylinder body 2b away from the air outlet 2a and closes the inner cavity before the actuator 51 is started, each valve plate 57 is separated from the air outlet cylinder body 2b synchronously through the driving of the transmission shaft 52 by the actuator 51, the driving of each driven rod 54 by the connecting block 53, and the driving of each rotating block 55 by each driven rod 54 when the main fan 27 is started, and the main fan 27 discharges gas after each valve plate 57 is separated from the air outlet cylinder body 2b.

[0054] The bottom of each valve plate 57 is provided with a bottom flange 572 integrally formed with the valve plate 57, each side of each valve plate 57 is provided with a side flange 571 integrally formed with the valve plate 57, the side flanges 571 on the valve plate 57 are oppositely arranged, the bottom flange 572 extends to one side of the air outlet cylinder body 2b in a direction perpendicular to the valve plate 57, each side flange 571 extends to one side of the air outlet cylinder body 2b in a direction perpendicular to the valve plate 57, and the end surface of each air outlet cylinder body 2b away from the inner cavity is provided with a waterproof rubber strip 573.

[0055] The bottom flange 572 and the side flange 571 on the valve plate 57 are folded to one side of the air outlet cylinder 2b through the bottom flange 572 and the side flange 571, and the waterproof strip 573 ensures the tightness and sealing of the connection between the valve plate 57 and the air outlet cylinder 2b, and on the other hand, it can also ensure that the water or snow entering the inner cavity of the main shell 2 in rainy, snowy or severe weather such as hail, so as to ensure the synchronous and smooth opening of each valve plate 57, and also avoid the freezing of water and snow between the valve plate 57 and the air outlet cylinder 2b, greatly reducing the fixation between the air outlet cylinder 2b and the valve plate 57 due to freezing, thereby effectively reducing the influence of severe weather on the opening and closing of the valve plate 57.

[0056] Each air outlet cylinder 2b is provided with a limiting side plate 2c, one end of each limiting side plate 2c is integrally formed with the air outlet cylinder 2b, and the other side of each limiting side plate 2c is folded to one side of the side flange 571 in a direction perpendicular to the valve plate 57, each side flange 571 is provided with a magnetic attraction part 574, each limiting side plate 2c is provided with an electromagnet 2d corresponding to each magnetic attraction part 574 and electrically connected with the main controller 11, and each limiting side plate 2c and the side edge of the air outlet cylinder 2b form a limiting slot 2e, each valve plate 57 is positioned and connected with the main shell 2 through the plug-in cooperation of each side flange 571 with the limiting slot 2e before the actuator 51 is started or after the exhaust is completed, and the magnetic attraction cooperation of each electromagnet 2d and the magnetic attraction part 574.

[0057] Through the structural design of the side double-door, the exhaust efficiency of the main fan 27 can be greatly improved in the effective space, and the positions of the two valve plates 57 are away from the main fan 27 in the inner cavity by a distance, which can greatly improve the overall waterproofness.

[0058] The electromagnet 2d is powered on when the container does not need to be exhausted or after the exhaust is completed, and after being powered on, the electromagnet 2d further ensures the firmness and stability of the connection between the valve plate 57 and the air outlet cylinder 2b through the magnetic attraction cooperation with the magnetic attraction part 574 after the limiting side plate 2c enters the limiting slot 2e, so as to avoid the shaking of each valve plate 57 during the transportation of the container, and thereby ensure the overall air tightness of the inner cavity when not exhausting.

[0059] The driven shaft 56 includes a rotating shaft part 561 rotatably connected with each side wall of the air outlet groove 20 and having a circular cross section, and a connecting part 562 provided between each rotating shaft part 561 and having a square cross section, the connecting part 562 is integrally formed with each rotating shaft part 561, and each valve plate 57 forms a surface contact with the connecting part 562 after being fixed to the connecting part 562 by the locking part.

[0060] The driven shaft 56 is provided in the form of a combination of the rotating shaft part 561 and the connecting part 562, the rotating shaft part 561 is provided in the form of a circular cross section to ensure the smooth rotation of the valve plate 57, the connecting part 562 is provided in the form of a square cross section instead of a circular cross section, the contact area between the valve plate 57 and the connecting plate can be increased through the surface contact between the valve plate 57 and the connecting plate, the sealing between the valve plate 57 and the connecting part 562 is ensured, if the connecting part 562 is provided in the form of a circular cross section, the line contact is formed between the connecting part 562 and the valve plate 57, the sealing of the line contact is obviously not as good as that of the surface contact, therefore, the driven shaft 56 is provided in the form of a combination of the rotating shaft part 561 and the connecting part 562, the smoothness of the rotation of the driven shaft 56 is ensured, and the sealing and efficiency of the connection between the valve plate 57 and the connecting part 562 are ensured.

[0061] Each of the air outlet grooves 20 is provided with a foreign matter removing assembly 6 for removing the accumulated water or snow in the air outlet groove 20, each of the foreign matter removing assemblies 6 corresponds to each of the driven shafts 56, the foreign matter removing assembly 6 comprises a first rotating rod 61 fixed on each of the rotating shaft parts 561, a second rotating rod 62 rotatably connected to each of the first rotating rods 61, a sliding block 64 horizontally slidingly arranged on each of the side walls of the air outlet groove 20 and rotatably connected to the second rotating rod 62, a connecting rod 65 fixed on each of the sliding blocks 64, and a foreign matter removing block 66 arranged on each of the connecting rods 65 and integrally formed with each of the connecting rods 65, the first rotating rod 61 and the second rotating rod 62 are arranged in the form of a V shape, the foreign matter removing block 66 extends from one side of the air outlet groove 20 to the other side of the air outlet groove 20, each of the foreign matter removing blocks 66 removes the accumulated water or snow in the air outlet groove 20 through the driving of the first rotating rod 61 by the rotating shaft part 561, the rotatable connection between the first rotating rod 61 and the second rotating rod 62, and the cooperation between the second rotating rod 62 and the sliding block 64.

[0062] Each of the driven shafts 56 drives each of the first rotating rods 61 to rotate in the process of rotation, each of the first rotating rods 61 drives the second rotating rod 62 and the sliding block 64 on the second rotating rod 62 to slide on the side wall of the air outlet in the process of sliding, and drives the foreign matter removing block 66 to remove the accumulated large volume of foreign matters, water, snow or accumulated hail in the air outlet groove 20, so as to avoid the air outlet groove 20 from being blocked by the snow or hail, and thus affect the overall air outlet effect, and thus the foreign matter removing of the foreign matter removing block 66 can effectively ensure the smooth air outlet in each of the air outlet grooves 20.

[0063] Each side wall of the air outlet groove 20 is provided with a side edge arc groove 68 coaxially arranged with the axis of the rotating shaft part 561, each first rotating rod 61 is fixedly provided with a connecting shaft 67 at an end away from the rotating shaft part 561, one end of each second rotating rod 62 is rotationally connected with the connecting shaft 67, the other end of each second rotating rod 62 is rotationally connected with the sliding block 64, each connecting shaft 67 is slidingly arranged in the corresponding side edge arc groove 68, each side wall of the air outlet groove 20 is provided with a horizontally arranged side edge sliding groove 63, the upper and lower end faces of each side edge sliding groove 63 are provided with limiting sliding grooves 631, each sliding block 64 is slidingly arranged in the corresponding side edge sliding groove 63, the upper and lower end faces of each sliding block 64 are provided with limiting sliding blocks 641, each sliding block 64 is slidingly connected to the corresponding side wall of the air outlet groove 20 through the sliding cooperation with the side edge sliding groove 63 and the sliding cooperation of each limiting sliding block 641 with the corresponding limiting sliding groove 631.

[0064] Each impurity removal block 66 is provided with an impurity removal groove 69 on the end face away from the inner cavity, which can remove accumulated water and snow, the impurity removal groove 69 extends from one side of the impurity removal block 66 to the other side of the impurity removal block 66, the impurity removal groove 69 includes a guide inclined surface 691, an arc-shaped guide surface 692 and a discharge inclined surface 693, the guide inclined surface 691 and the discharge inclined surface 693 are tangentially arranged with the arc-shaped guide surface 692, the guide inclined surface 691 is located below the discharge inclined surface 693, and the guide inclined surface 691 and the discharge inclined surface 693 are arranged at an acute angle, each impurity removal block 66 is driven to slide to the outlet of the air outlet groove 20 by the sliding block 64, and the accumulated water or snow is discharged in the process of sliding through the cooperation of the guide inclined surface 691, the arc-shaped guide surface 692 and the discharge inclined surface 693.

[0065] The connecting shaft 67 is arranged between the first rotating rod 61 and the second rotating rod 62, and the cooperation of the connecting shaft 67 and the side edge sliding groove 63 can ensure the stability of the first rotating rod 61 and the second rotating rod 62 in the process of rotation, thereby ensuring the stability of the impurity removal block 66 in the process of sliding, setting the width of the impurity removal block 66 to be the same as the width of the air outlet groove 20 can ensure complete and comprehensive removal of impurities in the air outlet groove 20, setting the impurity removal groove 69 on the impurity removal block 66 can remove the accumulated water, snow or other impurities in the air outlet groove 20 by setting the guide inclined surface 691, setting the arc-shaped guide surface 692 and the discharge inclined surface 693 can discharge the removed accumulated water, snow or other impurities, and setting the arc-shaped guide surface 692 can also avoid the accumulation of snow or impurities in the impurity removal groove 69 in the process of removing impurities, thereby ensuring the efficiency of removing impurities.

[0066] The decontamination block 66 is further provided with a decontamination part 7 in triangular cross section, the decontamination block 66 is provided with a protruding part 60, both sides of the protruding part 60 are provided with a rotating hole 601, the decontamination part 7 is provided with an extending part 71 arranged oppositely, the length of each extending part 71 and the length of the protruding part 60 are the same as the length of the decontamination block 66, each extending part 71 is provided with a side rotating rod 72 matched with the rotating hole 601, each side rotating rod 72 is sleeved with a torsional spring 602, both ends of each torsional spring 602 are fixedly connected with the side rotating rod 72 and the rotating hole 601 respectively, the decontamination part 7 is pressed against the bottom surface of the air outlet groove 20 through the cooperation of each side rotating rod 72 and the rotating hole 601 and the continuous force of the torsional spring 602.

[0067] The decontamination part 7 is stably and firmly pressed against the bottom surface of the air outlet groove 20 under the continuous action of the torsional spring 602, the decontamination part 7 is arranged in triangular shape, which can ensure that the front end of the decontamination part 7 can shovel off the impurities, water or snow from the bottom, thereby realizing comprehensive and efficient decontamination of the impurities, water or snow.

[0068] The inner cavity is provided with two oppositely arranged upper guide plates 25 and two oppositely arranged lower guide plates 26, each upper guide plate 25 corresponds to each lower guide plate 26, one end of each upper guide plate 25 is fixed on the upper surface of the inner cavity, the other end of each upper guide plate 25 extends obliquely to the corresponding air outlet 2a, one end of each lower guide plate 26 is fixed on the fan cover plate 22, the other end of each lower guide plate 26 extends obliquely to the corresponding air outlet 2a, the inner cavity is further provided with a front guide plate and a rear guide plate 24, the upper ends of the front guide plate and the rear guide plate 24 are fixed in the inner cavity, the lower ends of each front guide plate and rear guide plate 24 extend obliquely to one side of the main fan 27, each upper guide plate 25 and the inner wall of the air outlet cylinder 2b are provided with a connecting plate 251, each connecting plate 251 is provided with a valve opening and closing detection device 252 for detecting the opening and closing of the valve plate 57, the valve opening and closing detection device 252 is electrically connected with the main controller 11, the valve opening and closing detection device 252 is a micro switch, which transmits the signal of the opening and closing state to the main controller 11.

[0069] The outer control box 1 is fixedly provided with a vice control box 12, the vice control box 12 is fixedly provided with a vice controller 13 and a storage battery 14 capable of providing power for the vice controller 13, a plurality of standby fans 16 are fixedly provided on the fan cover plate 22, each standby fan 16 is electrically connected with the vice controller 13, the vice control box 12 is provided with a control switch 15 capable of controlling the on-off of the vice controller 13, the two ends of the control switch 15 are electrically connected with the storage battery 14 and the vice controller 13 respectively, a plurality of bottom air inlets 29 corresponding to each standby fan 16 are provided on the fan cover plate 22, an auxiliary control assembly 4 capable of controlling the opening and closing of the bottom air inlet 29 is provided between the fan cover plate 22 and the corresponding bottom air inlet 29, the auxiliary control assembly 4 comprises a bottom frame 41 fixed on the fan cover plate 22, a bottom sliding groove 42 provided on the bottom frame 41, a bottom cylinder 43 fixed on the fan cover plate 22, a bottom sealing plate 45 slidingly provided on the bottom frame 41 under the drive of the bottom cylinder 43, each bottom cylinder 43 is electrically connected with the main controller 11, the bottom sealing plate 45 is fixedly provided with a driving block 44, the extension end of the bottom cylinder 43 is fixed on the driving block 44, the groove bottom of the bottom sliding groove 42 is provided with a plurality of limiting sliding holes 47, the extension direction of each limiting sliding hole 47 is parallelly arranged with the extension direction of the bottom sliding groove 42, the bottom sealing plate 45 is provided with a limiting sliding rod 46 matched with each limiting sliding hole 47, each limiting sliding hole 47 is provided with a compression spring 48, the two ends of the compression spring 48 are fixedly connected with the hole bottom of the limiting sliding hole 47 and the limiting sliding rod 46 respectively, each bottom sealing plate 45 is slidably connected with the bottom frame 41 through the drive of the driving block 44 under the electricity of the bottom cylinder 43 and closes the corresponding bottom air inlet 29, and the corresponding bottom air inlet 29 is opened through the continuous force of the limiting sliding rod 46 by the compression spring 48 after the main controller 11 loses electricity;

[0070] Each of the lower guide plates 26 and the air outlet 2a is provided with an auxiliary door pushing assembly 3 which can open the air door 57 under the drive of the sub-controller 13, the auxiliary door pushing assembly 3 comprises a rotating seat 31 provided on the upper end of the lower guide plate 26 and integrally formed with the lower guide plate 26, a door pushing rod 34 rotatably connected to the rotating seat 31, a door pushing guide wheel 37 provided on the end of the door pushing rod 34 away from the rotating seat 31, an auxiliary motor 32 fixed on the fan cover plate 22, a lead screw 33 fixed on the output end of the auxiliary motor 32, and a lifting block 36 provided on the lead screw 33, the door pushing rod 34 is provided with a sliding through slot 35 arranged in parallel with the extension direction of the door pushing rod 34, each side wall of the sliding through slot 35 is provided with a side sliding slot 351 arranged in parallel with the extension direction of the sliding through slot 35, the two sides of the lifting block 36 are provided with side rotating rods 362, the upper end of the lead screw 33 is rotatably connected to the upper guide plate 25, the lifting block 36 is provided with a lifting screw hole 361 which can be matched with the lead screw 33, the lifting block 36 is arranged on the door pushing rod 34 through the thread cooperation of the lead screw 33 and the lifting screw hole 361 and the cooperation and sliding of each side rotating rod 362 and the corresponding side sliding slot 351, and each door pushing guide wheel 37 on each door pushing rod 34 opens each air door 57 through the synchronous movement of each lifting block 36 and the sliding through slot 35.

[0071] The working principle of the application is as follows: in the process of working, the gas detector is installed in the external control box 1 and is electrically connected with the main controller 11, when the gas detector senses smoke in the container, the main controller 11 drives the main fan 27, at the same time, the main controller 11 sends a driving signal to the actuator 51 and a de-energizing signal to the electromagnet 2d, so that the magnetic attraction between the electromagnet 2d and the magnetic attraction part 574 is cancelled, the main controller sends a driving signal to the bottom air cylinder 43, the bottom air cylinder 43 drives the bottom sealing plate 45 to slide and thus seals the bottom air outlet 29, the actuator 51 drives the connecting block 53 on the transmission shaft 52 and the connecting shaft 67 to rotate, the connecting block 53 drives each driven rod 54 to move, and each driven rod 54 drives each rotating block 55 and the driven shaft 56 to rotate, so as to realize the synchronous opening of each air door 57, the two air doors 57 which can be synchronously opened can greatly improve the exhaust efficiency, and when one air door 57 is damaged, the other air door 57 can continue to exhaust.

[0072] In the process of opening of each air valve plate 57, each side turning edge 571 is disengaged from the limiting slot 2e, and in the process of disengagement, the driven shaft 56 drives the first rotating rod 61 to rotate, the first rotating rod 61 drives the second rotating rod 62 to move upwards, the second rotating rod 62 drives the sliding block 64 to move in the side sliding groove 63 in the process of moving upwards, and the sliding block 64 is limited in sliding and disengaged through the cooperation of the limiting sliding block 641 and the limiting sliding groove 631, each sliding block 64 drives the impurity removal block 66 to move to the opening of the air outlet groove 20 in the process of sliding, and the impurity removal part 7 is pressed against the bottom surface of the air outlet groove 20 through the cooperation of each side rotating rod 72 and the rotating hole 601 and the continuous force exerted by the torsional spring 602 before the impurity removal block 66 moves, and the impurities are discharged through the cooperation of the triangular impurity removal part 7, the guide inclined surface 691, the arc-shaped guide surface 692 and the guide-out inclined surface 693 in the process of moving of the impurity removal block 66, which can not only ensure the rapid discharge of flue gas in the container, but also ensure the rapid discharge of impurities, water or snow in the air outlet groove 20, thereby ensuring the smoothness of the exhaust.

[0073] After the flue gas is discharged, each air valve plate 57 is reset, the side turning edge 571 of each air valve plate 57 enters the limiting slot 2e under the drive of the driven shaft 56, and timely signal feedback is performed through the air valve opening and closing detection device 252, so that the operator can timely understand the specific situation of the inner cavity, prevent damage caused by failure of the actuator 51 and inability to discharge flue gas, and ensure the stability of the connection between each air valve plate 57 and the main housing 2 after reset and the closure of the inner cavity through the cooperation of the electromagnet 2d and the magnetic attraction part 574.

[0074] After the main controller 11 loses power, each bottom sealing plate 45 opens the corresponding bottom air outlet 29 through the continuous force exerted by the compression spring 48 on the limiting sliding rod 46, the operator can drive each standby fan 16 to discharge the flue gas in the container by pressing the control switch 15, the auxiliary motor 32 drives the lead screw 33 to drive the door pushing rod 34 to rotate in the process of driving the lead screw 33, the door pushing guide wheel 37 is pressed against the air valve plate 57 in the process of downward rotation of the door pushing rod 34, the air valve plate 57 is opened, and the driven shaft 56 is driven to rotate in the process of opening, the impurity removal block 66 pushes out the water, snow or impurities in the air outlet groove 20 for removal, the operator can regularly check and replace the storage battery 14, and each door pushing guide wheel 37 is disengaged from the air valve plate 57 after the impurities are removed, each air valve plate 57 is reset under the action of gravity, and two auxiliary door pushing assemblies 3 are arranged in the inner cavity, which can drive each air valve plate 57 to open at the same time and reduce the damage to the transmission shaft 52 of the actuator 51;

[0075] This invention effectively solves the problem in the prior art where high-temperature gas can cause great damage to the energy storage container and the batteries inside the container if the gas cannot be discharged in time. By setting up double doors, efficient exhaust can be achieved within the effective space. At the same time, the debris removal block 66 can also effectively prevent blockage in the air outlet duct 20. With the auxiliary push door assembly 3, double doors can still be opened even when the main controller 11 is powered off, thus ensuring the efficient exhaust of smoke from the container in a comprehensive, efficient and safe manner. The structure is ingenious, convenient and practical.

[0076] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A top-mounted centrifugal fan for an energy storage container, having an external control box and a main controller installed in the external control box, further comprising a main casing that can be installed on the container and a mounting flange fixed to the main casing, characterized in that: The main housing has an inner cavity and a mounting slot. The inner cavity has openings at both its upper and lower ends. An explosion-proof cover is provided on the upper surface of the main housing, and a fan cover is provided on the lower surface. The main housing encloses the inner cavity through the explosion-proof cover and the fan cover. An air inlet is provided on the fan cover, communicating with the inner cavity. A main fan, corresponding to the air inlet and electrically connected to the main controller, is located inside the inner cavity. The main fan is fixedly mounted on the explosion-proof cover. Air outlet slots are provided at both ends of the main housing, each with an air outlet. Each air outlet slot communicates with the inner cavity through its respective air outlet. The main housing has a control component capable of simultaneously controlling the opening and closing of each air outlet. The control component includes an actuator fixedly mounted in the mounting slot and electrically connected to the main controller, a drive shaft fixed to the output end of the actuator, a connecting block fixed to the drive shaft, and a phase... The driven rods are rotatably connected to the connecting block on both sides, the rotating blocks are rotatably connected to each driven rod, the driven shafts are fixed to each rotating block and rotatably set in each air outlet slot, and the valve plates are fixed to each driven shaft. The axis of the transmission shaft is parallel to the axis of the driven shaft. An air outlet cylinder is fixed on the end face with an air outlet in each air outlet slot. The inner contour of the air outlet cylinder is the same as the contour of the air outlet. The air outlet slot is connected to the air outlet through the air outlet cylinder. Before the actuator is started, each valve plate is pressed against the end face of the corresponding air outlet cylinder away from the air outlet and the inner cavity is sealed. When the main fan is started, each valve plate is simultaneously disengaged from the air outlet cylinder through the actuator driving the transmission shaft, the connecting block driving each driven rod, and the driven rod driving the rotating block. After each valve plate is disengaged from the air outlet cylinder, the main fan discharges the gas. The driven shaft includes a rotating shaft part with a circular cross-section that is rotatably connected to each side wall of the air outlet slot, and a connecting part with a square cross-section that is disposed between each rotating shaft part. The connecting part is integrally formed with each rotating shaft part, and each valve plate is fixed to the connecting part by a locking member and forms a surface contact with the connecting part. Each air outlet duct is equipped with a debris removal component that can drain accumulated water or snow from the air outlet duct. Each debris removal component corresponds one-to-one with each driven shaft. The debris removal component includes a first rotating rod fixed on each rotating shaft, a second rotating rod rotatably connected to each first rotating rod, a sliding block horizontally slidably disposed on each side wall of the air outlet duct and rotatably connected to the second rotating rod, a connecting rod fixed on each sliding block, and a debris removal block disposed on each connecting rod and integrally formed with each connecting rod. The first rotating rod and the second rotating rod are arranged in a V-shape. The debris removal block extends from one side of the air outlet duct to the other side. Each debris removal block drains accumulated water or snow from the air outlet duct through the driving of the first rotating rod by the rotating shaft, the rotatable connection between the first rotating rod and the second rotating rod, and the cooperation between the second rotating rod and the sliding block.

2. A rooftop centrifugal fan for an energy storage container according to claim 1, characterized in that: The bottom of each valve plate is provided with a bottom flange integrally formed with the valve plate, and each side of each valve plate is provided with a side flange integrally formed with the valve plate. The side flanges on the valve plate are oppositely arranged. The bottom flange extends to one side of the air outlet cylinder body in a direction perpendicular to the valve plate. Each side flange extends to one side of the air outlet cylinder body in a direction perpendicular to the valve plate. Each air outlet cylinder body is provided with a waterproof rubber strip on an end face away from the inner cavity.

3. A rooftop centrifugal fan for an energy storage container according to claim 2, characterized in that: Each air outlet cylinder body is provided with a limiting side plate on both sides. One end of each limiting side plate is integrally formed with the air outlet cylinder body. The other side of each limiting side plate is turned to one side of the side flange in a direction perpendicular to the valve plate. Each side flange is provided with a magnetic attraction part. Each limiting side plate is provided with an electromagnet corresponding to each magnetic attraction part and electrically connected with the main controller. Each limiting side plate and the side edge of the air outlet cylinder body form a limiting slot. Each valve plate is positioned and connected with the main housing through the plug-in cooperation of each side flange with the limiting slot before the actuator is started or after the exhaust is completed, and the magnetic attraction cooperation of each electromagnet and magnetic attraction part.

4. A rooftop centrifugal fan for an energy storage container according to claim 1, characterized in that: Each side wall of the air outlet groove is provided with a side edge arc groove coaxially arranged with the axis of the rotating shaft part. One end of each first rotating rod away from the rotating shaft part is fixedly provided with a connecting shaft. One end of each second rotating rod is rotatably connected with the connecting shaft. The other end of each second rotating rod is rotatably connected with the sliding block. Each connecting shaft is slidingly arranged in the corresponding side edge arc groove. Each side wall of the air outlet groove is provided with a horizontally arranged side edge sliding groove. The upper and lower end faces of each side edge sliding groove are provided with limiting sliding grooves. Each sliding block is slidingly arranged in the corresponding side edge sliding groove. The upper and lower end faces of each sliding block are provided with limiting sliding blocks. Each sliding block is slidingly connected on the corresponding side wall of the air outlet groove through the sliding cooperation with the side edge sliding groove and the sliding cooperation of each limiting sliding block with the corresponding limiting sliding groove.

5. A rooftop centrifugal fan for an energy storage container according to claim 1, characterized in that: Each impurity removal block is provided with an impurity removal groove on an end face away from the inner cavity, which can remove accumulated water and snow. The impurity removal groove extends from one side of the impurity removal block to the other side of the impurity removal block. The impurity removal groove includes a guide slope, an arc guide surface, and a discharge slope. The guide slope and the discharge slope are tangentially arranged with the arc guide surface. The guide slope is located below the discharge slope, and the guide slope and the discharge slope are arranged at an acute angle. Each impurity removal block is driven by the sliding block to slide towards the outlet of the air outlet groove, and in the process of the sliding rod, the accumulated water or snow is removed through the cooperation of the guide slope, the arc guide surface, and the discharge slope.

6. A rooftop centrifugal fan for an energy storage container according to claim 5, characterized in that: The impurity removal block is also provided with an impurity removal part with a triangular cross section. The impurity removal block is provided with a protruding part. The two sides of the protruding part are provided with rotating holes. The impurity removal part is provided with oppositely arranged extension parts. The length of each extension part and the length of the protruding part are the same as the length of the impurity removal block. Each extension part is provided with a side rotating rod adapted to the rotating hole. Each side rotating rod is provided with a torsional spring. The two ends of each torsional spring are fixedly connected with the side rotating rod and the rotating hole, respectively. The impurity removal part is pressed against the bottom surface of the air outlet groove through the cooperation of each side rotating rod and rotating hole and the continuous force of the torsional spring.

7. A rooftop centrifugal fan for an energy storage container according to claim 1, characterized in that: Two upper guide plates and two lower guide plates are arranged oppositely in the inner cavity, each upper guide plate and each lower guide plate correspond to each other, one end of each upper guide plate is fixed on the upper surface of the inner cavity, the other end of each upper guide plate extends obliquely to the corresponding air outlet, one end of each lower guide plate is fixed on the fan cover plate, the other end of each lower guide plate extends obliquely to the corresponding air outlet, a front guide plate and a rear guide plate are further arranged in the inner cavity, the upper ends of the front guide plate and the rear guide plate are fixed in the inner cavity, the lower ends of each front guide plate and the rear guide plate extend obliquely to the side of the main fan, a connecting plate is arranged on each upper guide plate and the inner wall of the air outlet cylinder, a valve opening and closing detection device for detecting the opening and closing of the valve plate is arranged on each connecting plate, and the valve opening and closing detection device is electrically connected with the main controller.

8. A rooftop centrifugal fan for an energy storage container according to claim 7, characterized in that: A plurality of standby fans are fixedly arranged on the fan cover plate, each standby fan is electrically connected with the secondary controller, a control switch for controlling the on-off of the secondary controller is arranged in the secondary control box, and the control switch is electrically connected with the storage battery and the secondary controller at two ends, a plurality of bottom air outlets corresponding to the standby fans are arranged on the fan cover plate, an auxiliary control assembly for controlling the opening and closing of the bottom air outlets is arranged between the fan cover plate and the corresponding bottom air outlets, the auxiliary control assembly comprises a bottom frame fixed on the fan cover plate, a bottom sliding groove arranged on the bottom frame, a bottom cylinder fixed on the fan cover plate, and a bottom sealing plate slidingly arranged on the bottom frame under the drive of the bottom cylinder, each bottom cylinder is electrically connected with the main controller, a driving block is fixedly arranged on the bottom sealing plate, the telescopic end of the bottom cylinder is fixed on the driving block, the groove bottom of the bottom sliding groove is provided with a plurality of limiting sliding holes, the extension direction of each limiting sliding hole is arranged in parallel with the extension direction of the bottom sliding groove, the bottom sealing plate is provided with a limiting sliding rod matched with each limiting sliding hole, each limiting sliding hole is provided with a compression spring, and the two ends of the compression spring are fixedly connected with the hole bottom of the limiting sliding hole and the limiting sliding rod, respectively, each bottom sealing plate is slidably connected with the bottom frame through the driving of the driving block by the bottom cylinder after being electrified, and the corresponding bottom air outlet is closed, and the corresponding bottom air outlet is opened by the continuous force of the limiting sliding rod by the compression spring after the main controller loses power. Each of the lower guide plates and the air outlet is provided with an auxiliary door pushing assembly which can open the air door under the drive of the sub-controller, the auxiliary door pushing assembly comprises a rotating seat provided on the upper end of the lower guide plate and integrally formed with the lower guide plate, a door pushing rod rotatably connected to the rotating seat, a door pushing guide wheel provided on the end of the door pushing rod away from the rotating seat, an auxiliary motor fixed on the fan cover plate, a lead screw fixed on the output end of the auxiliary motor, and a lifting block provided on the lead screw, the door pushing rod is provided with a sliding channel arranged in parallel with the extending direction of the door pushing rod, each side wall of the sliding channel is provided with a side sliding groove arranged in parallel with the extending direction of the sliding channel, the two sides of the lifting block are provided with side rotating rods, the upper end of the lead screw is rotatably connected to the upper guide plate, the lifting block is provided with a lifting screw hole which can be matched with the lead screw, the lifting block is movably arranged on the door pushing rod through the thread cooperation between the lead screw and the lifting screw hole and the cooperation between each side rotating rod and the corresponding side sliding groove, and the door pushing guide wheels on each of the door pushing rods are opened synchronously through the movement cooperation between each of the lifting blocks and the sliding channel.

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