Energy storage cabin with explosion-proof structure

Abstract

This invention provides an energy storage chamber with an explosion-proof structure, belonging to the field of energy storage equipment technology. Specifically, it includes a chamber body, pressure balancing pipes, sidewall explosion-proof components, and a top cover explosion-proof component. The sidewall explosion-proof component is installed on the sidewall of the chamber body, forming a primary explosion-proof channel when opened, and restricting the side spray of flames within the chamber during depressurization. The top cover explosion-proof component is installed on the top wall of the chamber body, forming a two-stage depressurization system in conjunction with the sidewall explosion-proof component. The sidewall explosion-proof component includes a ceramic flame-retardant layer to prevent the outward flow of flames within the chamber. This invention achieves staged depressurization through the sidewall and top cover explosion-proof components; that is, depressurization is first achieved through the sidewall explosion-proof component, and when the sidewall explosion-proof component cannot meet the depressurization requirements, depressurization is then achieved through the top cover explosion-proof component. This ensures that the pressure within the chamber can be released, while the sidewall explosion-proof component prevents the outward spray of flames within the chamber, thereby improving the safety of the surrounding environment.

Description

Technical Field

[0001] This invention belongs to the field of energy storage equipment technology, and specifically relates to an energy storage compartment with an explosion-proof structure. Background Technology

[0002] With the large-scale application of renewable energy and the increasing demand for grid peak shaving, battery energy storage systems (BESS) have developed rapidly. The energy storage compartment, serving as a container for battery packs and power distribution facilities (including battery clusters, combiner cabinets, converters, and distribution cabinets), typically adopts a containerized structure, with lithium or lithium iron phosphate batteries arranged in a high density inside. Under abnormal operating conditions such as overcharging, overheating, or mechanical damage, batteries may experience thermal runaway, producing flammable gases (such as hydrogen, carbon monoxide, and methane). When the gas concentration reaches the explosive limit, it can ignite upon contact with an electrical spark or high temperature, triggering an explosion. The shock wave and flames generated by the explosion not only destroy the energy storage compartment itself but also affect surrounding equipment and personnel, causing a major safety accident.

[0003] Existing energy storage compartments rely primarily on passive protection through ventilation and fire suppression systems (such as aerosol extinguishing and water spray). In the event of an explosion, the compartment structure cannot withstand the internal pressure, leading to compartment rupture, flying debris, and potentially triggering a chain reaction of explosions in adjacent energy storage compartments.

[0004] Although a few high-end energy storage compartments use explosion-proof panels or pressure relief vents, most of them are one-way pressure relief, which means that during the pressure relief process, flames will spray out over a wide area, which may ignite surrounding equipment or vegetation and cause secondary fires. Summary of the Invention

[0005] The purpose of this invention is to provide an energy storage compartment with an explosion-proof structure, which achieves rapid depressurization through multi-stage depressurization and prevents flames from being ejected outward through sidewall explosion-proof components.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an energy storage compartment with an explosion-proof structure, comprising a compartment body, a pressure balancing pipe, a side wall explosion venting assembly, and a top cover explosion venting assembly. An explosion-proof central partition is installed inside the compartment, dividing the internal space into a battery compartment and an electrical compartment. The pressure balancing pipe is installed on the explosion-proof central partition, connecting the battery compartment and the electrical compartment. The side wall explosion venting assembly is installed on the side wall of the compartment, forming a primary explosion venting channel when opened, used for depressurizing the compartment and limiting the side spray of flames within the compartment during depressurization. The top cover explosion venting assembly is installed on the top wall of the compartment, forming a secondary explosion venting channel when opened. Together with the side wall explosion venting assembly, it forms a dual-stage depressurization system; when the depressurization capacity of the primary explosion venting channel is insufficient, depressurization can be achieved through the secondary explosion venting channel. The side wall explosion venting assembly includes a ceramic flame-retardant layer to prevent the outward flow of flames within the compartment.

[0007] Furthermore, the pressure balancing pipeline includes a pipe body and a one-way explosion-proof valve. The pipe body passes through the explosion-proof partition. The one-way explosion-proof valve is located at both ends of the pipe body and is used to seal the pipe body.

[0008] Furthermore, the sidewall explosion relief assembly also includes self-resetting louvers that can be opened to connect the interior of the cabin with the exterior, allowing the gas inside the cabin to escape.

[0009] Furthermore, the ceramic fire-retardant layer includes ceramic blocks, which are a plurality of blocks that are interlocked with each other; The ceramic block has honeycomb holes, which allow the flame to pass through it.

[0010] Furthermore, the pore density of the honeycomb cells is ≥300 CPSI and the wall thickness is ≤0.25mm, with an open area ratio >65%.

[0011] Furthermore, the self-resetting louver includes horizontal blades and a reset component. There are several horizontal blades, and the several horizontal blades are arranged at equal intervals. Each horizontal blade is connected to a pivot at its end, so that the horizontal blades can rotate around the pivot and allow two adjacent horizontal blades to overlap. The reset component is set on the pivot and is used to reset the horizontal blades.

[0012] Furthermore, the top cover explosion relief assembly includes a positioning frame and a top cover. The positioning frame is installed on the cabin. The top cover is movably connected to the positioning frame and can move upward, so that there is a pressure relief gap between the top cover and the positioning frame.

[0013] Furthermore, the top cover includes a mating cover, which is located above the positioning frame. The mating cover is provided with a top explosion vent, and a movable pressure relief cover is provided inside the top explosion vent. After the pressure relief cover is moved, the top explosion vent can be in an open state.

[0014] Furthermore, a guide post passes through the positioning frame, with the upper end of the guide post connecting to the top cover and the lower end of the guide post having an anti-detachment cap. Normally, a support sleeve is fitted on the guide post, which is located between the anti-detachment cap and the positioning frame and can deform under pressure.

[0015] Furthermore, a sealing component is provided between the positioning frame and the top cover. The sealing component supports the top cover and can be separated from both the positioning frame and the top cover simultaneously.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up the side wall explosion relief assembly and the top cover explosion relief assembly, staged pressure relief is achieved. That is, pressure relief is first carried out through the side wall explosion relief assembly. When the side wall explosion relief assembly cannot meet the pressure relief requirements, pressure relief is then carried out through the top cover explosion relief assembly. This ensures that the pressure inside the cabin can be discharged. At the same time, the side wall explosion relief assembly can prevent the flame inside the cabin from being ejected outward, thereby improving the safety of the surrounding environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side cross-sectional view of the present invention. Figure 3 This is a side view cross-sectional structural diagram of the sidewall explosion relief assembly of the present invention; Figure 4 This is a schematic diagram of the positioning frame structure of the present invention; Figure 5 This is a schematic diagram of the mating cover structure of the present invention; Figure 6 This is a schematic diagram showing the connection between the mating cover and the positioning frame of the present invention; Figure 7 This is a schematic cross-sectional view of part A of the present invention; Figure 8 This is a schematic diagram of the base plate structure of the present invention; Figure 9 This is a schematic diagram of the upper pad structure of the present invention; Figure 10 This is a schematic diagram of the detection and control component structure of the present invention; Among them, 1-cabin body, 2-explosion-proof central bulkhead, 3-ceramic fire-retardant layer, 4-metal insect-proof net, 5-window frame, 6-horizontal blade, 7-positioning frame, 8-fitting cover, 9-protrusion, 10-top explosion vent, 11-pressure relief cover, 12-support sleeve, 13-one-way explosion-proof valve, 14-bottom pad, 15-upper pad, 16-placement slot, 17-support column, 18-compression return spring, 19-longitudinal tie rod, 20-horizontal tie arm, 21-lifting lug, 22-flat lifting arm, 23-positioning cover, 24-side guard plate, 25-lifting seat, 26-support arm, 27-drive pull bar, 28-support platform, 29-lever, 30-upper rod body, 31-lower rod body, 32-guide rod, 33-positioning sleeve, 34-tension return piece, 35-guide plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] See Figures 1 to 3 As shown, an energy storage compartment with an explosion-proof structure has a rectangular box-shaped body 1. An explosion-proof partition 2 is installed inside the body 1, which divides the interior of the body 1 into two independent areas: a battery compartment and an electrical compartment. The battery compartment and the electrical compartment are arranged along the length of the body 1. Multiple sets of battery racks are installed in the battery compartment, and battery clusters are placed on each set of battery racks. Electrical equipment such as power distribution cabinets, PCS converters, combiner cabinets, and fire control boxes are installed in the electrical compartment.

[0021] Since the battery compartment is the area with the highest risk of explosion, it is equipped with side wall explosion venting components and top cover explosion venting components. When the side wall explosion venting components are opened, they can form a primary explosion venting channel, while the top cover explosion venting components can form a secondary explosion venting channel. This allows the battery compartment to be connected by two-stage explosion venting channels. First, pressure is released through the primary explosion venting channel. When the pressure release capacity of the primary explosion venting channel is insufficient, pressure can also be released through the secondary explosion venting channel.

[0022] See Figure 2 and Figure 3As shown, the sidewall explosion relief assembly, from the inside out, includes a ceramic fire-resistant layer 3, a metal insect-proof mesh 4, and a self-resetting louver. The self-resetting louver includes a window frame 5 and horizontal blades 6. The window frame 5 is connected to the cabin 1 via rivets, etc. There are multiple horizontal blades 6, made of aluminum alloy with a thickness of 1-2 mm. Both ends of the horizontal blades 6 are connected to the window frame 5 via pivots, allowing each horizontal blade 6 to rotate around its pivot. Each horizontal blade 6's pivot is connected to a reset element; in this example, the reset element is a torsion spring (torque 0.5 N·m). The horizontal blades 6 are mounted on the rotating shaft, allowing them to be in a normally closed state. At this time, two adjacent horizontal blades 6 form an overlapping connection. Flame-retardant rubber sealing strips are coated on the inner side of the horizontal blades 6 to ensure daily waterproofing and dustproofing. When the pressure inside the battery compartment exceeds the set value (3kPa), the pressure pushes the horizontal blades 6 to open outward. The horizontal blades 6 rotate around the rotating shaft, allowing the torsion spring to store energy. After the pressure is released, the restoring force provided by the torsion spring drives the horizontal blades 6 to automatically reset and close. The maximum opening angle of the horizontal blades 6 is 70°, at which time the ventilation area is maximized.

[0023] The ceramic fire-resistant layer 3 is located inside the louvers. The ceramic fire-resistant layer 3 is composed of several ceramic blocks, which can be interlocked with adjacent ceramic blocks. Specifically, cordierite honeycomb ceramic blocks are selected, with an overall thickness of 45mm. Honeycomb holes are set on the ceramic blocks. The honeycomb holes are triangular or square. At this time, the pore density is ≥300 CPSI and the wall thickness is ≤0.25mm, with an opening rate >65%. When the flame passes through the ceramic fire-resistant layer 3, the hole wall absorbs heat, causing the flame temperature to drop. At the same time, the high-speed airflow forms turbulence in the hole, which can accelerate the flame extinguishing. The fire-resistant layer can effectively prevent the flame from being ejected from the explosion vent, but allows gas to pass through.

[0024] The metal insect-proof mesh 4 is made of stainless steel wire mesh (with a mesh size of about 0.5mm). It is welded to the innermost side of the window frame 5. At this time, the metal insect-proof mesh 4 is located between the ceramic fire-resistant layer 3 and the horizontal blades 6, which can prevent sand and insects from entering and clogging the honeycomb holes.

[0025] Under normal conditions, the horizontal blades 6 of the self-resetting louvers are closed under the action of the torsion spring, and the ceramic fire-resistant layer 3 and the insect screen remain unobstructed but no airflow passes through. When thermal runaway occurs in the battery compartment, the combustible gas in the battery compartment is ignited, and the pressure rises sharply to more than 3 kPa within milliseconds. At this time, the blades are affected by the pressure difference between the two sides of the space and will quickly open outward (opening time <10ms). The gas and flame rush towards the ceramic fire-resistant layer 3, and the flame is quenched in the honeycomb channels of the ceramic fire-resistant layer 3, thereby venting the high-temperature gas. Since there are multiple horizontal blades 6, the total pressure relief area is sufficient to limit the pressure in the compartment to within the tolerable peak value.

[0026] When the pressure inside the battery compartment is too high, causing the side wall explosion relief components to fail to release pressure smoothly, the pressure can be released through the top cover explosion relief components. For details, please refer to Figure 2 , Figures 4 to 6 As shown, the top cover explosion relief assembly includes a positioning frame 7. A top opening is provided on the top of the compartment 1. The positioning frame 7 is located inside the top opening and is fixedly connected to the compartment 1. The positioning frame 7 is U-shaped and encloses the top pressure relief area. A mating cover 8 is connected to the positioning frame 7. A boss 9 is provided on the lower surface of the mating cover 8. After the mating cover 8 is connected to the positioning frame 7, the boss 9 is located in the top pressure relief area and fits tightly. The mating cover 8 is connected to the positioning frame 7 through a guide post. Several top explosion relief ports 10 are provided on the mating cover 8. Each top explosion relief port 10 is provided with a pressure relief cover 11. One end of the pressure relief cover 11 is hinged to the top explosion relief port 10, and the other end opposite to it is connected to the mating cover 8 through a shear pin. The pressure relief cover 11 is in a closed state under normal conditions. When the side wall explosion relief assembly cannot meet the pressure relief requirements, the shear pin is broken, causing the pressure relief cover 11 to flip upward around the hinge end, so that pressure can be relieved through the top explosion relief port 10. The guide post is cylindrical, and the positioning frame 7 has a longitudinal perforation through which the guide post passes. The upper end of the guide post abuts against the mating cover 8. An anti-detachment cap is installed on the guide post, located below the positioning frame 7. Under normal conditions, there is a distance between the anti-detachment cap and the positioning frame 7, providing a buffer space for the mating cover 8 to move upwards. A support sleeve 12 is installed within this buffer space, fitted onto the guide post. The support sleeve 12 has several axially extending flat openings. Under normal conditions, the pressure relief cover 11 and the mating cover 8 form a top seal. When the sidewall explosion relief assembly is working, the support sleeve 12 ensures that the top seal... The cover cannot move upwards. When the side wall explosion relief assembly cannot meet the pressure relief requirements, the top cover will be affected by the internal pressure of the battery compartment, which will cause the support sleeve 12 to be compressed and deformed. Finally, the top cover will move upwards first. When the anti-detachment cap contacts the lower surface of the positioning frame 7, the maximum stroke of the top cover (150mm) is reached. At this time, the top cover cannot move upwards anymore. However, there is already a certain gap between the top cover and the positioning frame 7. This gap is the pressure relief gap. That is, the top cover can no longer seal the top opening of the compartment 1. The pressure inside the battery compartment can be released through the pressure relief gap, which forms the second stage of pressure relief. When the second-stage pressure relief still cannot meet the pressure relief requirements, the shear pin cannot withstand the pressure inside the battery compartment, causing the shear pin to break, thereby allowing the pressure relief cover 11 to flip upward. At this time, the top explosion vent 10 is opened, thus forming the third-stage pressure relief and realizing multi-stage pressure relief treatment.

[0027] In addition, a stainless steel wire mesh is installed on the positioning frame 7. The stainless steel wire mesh is located below the top cover and can prevent fragments from flying out.

[0028] In this technical solution, to ensure pressure balance between the battery compartment and the electrical compartment during normal operation (to prevent the door from being difficult to open), a pressure balancing pipe is installed on the explosion-proof partition 2. The pressure balancing pipe passes through the explosion-proof partition 2, allowing the battery compartment to be connected to the electrical compartment. Under normal conditions, the pressure balancing pipe is in an open state, and the battery compartment and the electrical compartment are in a state of pressure balance. However, when the battery compartment explodes, the pressure balancing pipe is in a closed state, blocking the flow of flames and preventing flames from flowing into the electrical compartment.

[0029] The pressure balancing pipeline includes a stainless steel pipe body with a one-way explosion-proof valve 13 installed at each end of the pipe body. Under normal conditions, the one-way explosion-proof valve 13 is in the open state, and gas can pass through the one-way explosion-proof valve 13. After being affected by the shock wave, the one-way explosion-proof valve 13 can be closed, thereby blocking the flow of gas and flame.

[0030] In this technical solution, a pressure sensor (range 0-10kPa, accuracy ±0.1kPa) and a combustible gas detector are installed inside the chamber 1. The sensor and detector signals are connected to a controller (PLC). An exhaust fan is also installed on the chamber 1. The controller logic is as follows: When the concentration of combustible gas exceeds 20% LEL, the exhaust fan will be automatically started to reduce the concentration. When the pressure rise rate exceeds 0.5 kPa / s and the concentration exceeds 50% LEL, an audible and visual alarm will be issued and the non-explosion-proof power supply in the cabin (except for lighting and fire protection) will be automatically cut off.

[0031] When the energy storage compartment is in normal condition, the horizontal blades 6 are closed under the action of the torsion spring, and the ceramic fire-retardant layer 3 and the insect screen remain unobstructed but no airflow passes through. The explosion-proof valve on the explosion-proof partition 2 is in the open position, the air pressure in the two compartments is balanced, and the top cover also seals the top opening.

[0032] When thermal runaway occurs in the battery compartment and flammable gas is generated, the pressure sensor detects a slow increase in pressure, and the controller starts the exhaust fan. If the gas concentration rises below the lower explosive limit, the system continues to ventilate and exhaust the gas; if the concentration continues to rise, the controller cuts off the power to prevent electric sparks.

[0033] When the combustible gas inside the battery compartment is ignited, the pressure rises sharply to over 3 kPa within milliseconds. At this point, the sidewall explosion relief assembly starts to work. The horizontal blade 6 overcomes the torsion spring force through the internal and external pressure difference, and the blade opens rapidly outward (opening time <10 ms), achieving first-stage pressure relief. If the sidewall explosion relief assembly fails to relieve pressure (e.g., due to blockage by sand and dust), the pressure will continue to rise, causing the top cover to move upward, achieving second-stage pressure relief. If the pressure relief is still insufficient, the shear pin will break, causing the pressure relief cover 11 to flip upward, thus forming third-stage pressure relief.

[0034] During this process, the pressure balancing pipe will be shut off due to the impact of the shock wave, preventing the shock wave and flames from entering the electrical compartment. Due to the protection of the explosion-proof bulkhead 2, the pressure inside the electrical compartment remains basically unchanged, and the power distribution facilities are intact.

[0035] After the explosion, the pressure inside the battery compartment quickly dropped to normal pressure. The horizontal blade 6 automatically closed under the action of the torsion spring, restoring the seal. At this time, the pressure balance pipe was unblocked. The support sleeve 12 and the shear pin needed to be manually reset (replaced). However, the side wall explosion relief components could be reused. Throughout the process, flames were prevented from being ejected over a large area, ensuring the safety of adjacent energy storage compartments.

[0036] In this technical solution, an electric heating antifreeze element is provided inside the positioning frame 7. The electric heating antifreeze element is an electric heating wire. The electric heating wire is coiled inside the positioning frame 7. When the electric heating wire is energized, it can exchange heat with the positioning frame 7, thus preventing the positioning frame 7 and the mating cover 8 from freezing and sticking together in low-temperature environments. See Figure 2 , Figures 7 to 9 As shown, in order to ensure that the top cover can be separated from the positioning frame 7, a sealing component is provided between the positioning frame 7 and the top cover. The positioning frame 7 is provided with a positioning groove that passes through the positioning frame 7 along the length direction. The sealing component is located at the end of the positioning groove. The sealing component can make tight contact with both the positioning frame 7 and the top cover at the same time to prevent rain, snow and debris from entering. In this example, the sealing assembly includes a bottom pad 14 and an upper pad 15. The upper pad 15 is located above the bottom pad 14. A placement groove 16 is provided on the upper surface of the positioning frame 7. The placement groove 16 is located within the positioning groove area, so that the bottom pad 14 is located in the placement groove 16 and its lower surface contacts the positioning frame 7. The top surface of the upper pad 15 contacts the mating cover 8 of the top cover. Several support columns 17 are also provided on the bottom pad 14. The support columns 17 are arranged at equal intervals along the length of the bottom pad 14, and the upper ends of the support columns 17 abut against the lower surface of the mating cover 8. The upper pad 15 is supported by the support column 17, and the inner side of the upper pad 15 is provided with holes. The support column 17 passes through the holes in the upper pad 15. When the upper pad 15 contacts the mating cover 8, there is a gap between the upper pad 15 and the bottom pad 14. An elastic return component is provided between the upper pad 15 and the bottom pad 14. The elastic return component is composed of several compression return springs 18. The several compression return springs 18 are arranged at equal intervals along the length direction of the bottom pad 14. When the elastic return component is in normal state, the upper pad 15 contacts the mating cover 8. The sealing assembly also includes two longitudinal tie rods 19 and a transverse tie arm 20. The two longitudinal tie rods 19 are arranged parallel to each other and are respectively fixed to one end of the transverse tie arm 20. Two through holes are provided on the bottom pad 14 and the positioning frame 7. The two through holes are respectively located near the end of the bottom pad 14. The longitudinal tie rods 19 pass through the corresponding through holes and the upper end of the longitudinal tie rods 19 is fixed to the upper pad 15. At this time, the upper pad 15 can be moved downward by applying a downward force to the adjusting assembly formed by the transverse tie arm 20 and the longitudinal tie rods 19, so that the longitudinal distance between the upper pad 15 and the bottom pad 14 is reduced. At this time, the mating cover 8 is supported by the support column 17, so that the upper pad 15 can be separated from the mating cover 8.

[0037] A lifting lug 21 is installed inside the battery compartment. The lifting lug 21 is installed on the top wall of the battery compartment. A flat lifting arm 22 is axially connected to the lifting lug 21. The inner end of the flat lifting arm 22 is movably connected to the horizontal pull arm 20. When the outer end of the flat lifting arm 22 is subjected to an upward thrust, the inner end of the flat lifting arm 22 can move downward. At this time, a downward force is applied to the horizontal pull arm 20, thereby driving the upper pad 15 to move downward. See Figure 1 , Figure 2 and Figure 10 As shown, a detection and control component is installed on the cabin 1. The detection and control component is connected to the self-resetting louver. The horizontal blades 6 on the self-resetting louver can be flipped through the detection and control component. During regular maintenance, a force can be applied to the rotating shaft on the horizontal blades 6 through the detection and control component. If the horizontal blades 6 cannot be flipped, the self-resetting louver needs to be inspected and maintained. If the horizontal blades 6 can be flipped normally, the self-resetting louver does not need to be inspected and maintained. The detection and control component is installed on the outer wall of the cabin 1, specifically including a positioning cover 23. The positioning cover 23 is fixed on the cabin 1, and an internal space is formed between the positioning cover 23 and the cabin 1. A hole is provided on the positioning cover 23, and a drive pull bar 27 is provided inside the positioning cover 23. The drive pull bar 27 is provided with a tooth. At the same time, a flat opening is provided on the cabin 1, and a gear is provided inside the flat opening. The gear can mesh with the tooth on the drive pull bar 27. The gear is fixed on the rotating shaft. When the drive pull bar 27 moves upward, it can cause the horizontal blade 6 to flip outward. A traction rod is connected to the drive bar 27. The traction rod passes through the hole in the positioning cover 23 and can drive the drive bar 27 to move longitudinally by moving the traction rod. In this example, the cabin 1 is provided with a waist-shaped opening, which is connected to the battery compartment. At the same time, a lifting seat 25 is connected to the upper end of the towing rod. The lifting seat 25 is installed in the waist-shaped opening and can move within the waist-shaped opening. When an upward traction force is applied to the drive bar 27 through the towing rod, the lifting seat 25 can be moved upward. A support arm 26 is provided on the lifting seat 25. The support arm 26 is located inside the battery compartment. The inner end of the support arm 26 is movably connected to the outer end of the flat lifting arm 22. When the lifting seat 25 moves upward, the flat lifting arm 22 can be flipped, thereby causing the upper pad 15 to move downward. However, when the upper pad 15 is stuck to the mating cover 8, the upper pad 15 cannot move downward. This causes the traction rod to be unable to move upward. That is, when the detection and control component detects whether the horizontal blade 6 can open normally, it can simultaneously detect whether the mating cover 8 can move upward smoothly, that is, detect the movable state of the mating cover 8.

[0038] The drive bar 27 is provided with an extension channel, through which the traction rod passes. A support 28 is fixed on the traction rod, which is located below the lifting seat 25. At the same time, a vertically extending, elongated auxiliary adjustment port is provided on the positioning cover 23. A lever 29 is provided on the drive bar 27, which extends from the auxiliary adjustment port. When the traction rod cannot move upward, the drive bar 27 can be moved upward by using the lever 29. If the drive bar 27 can move upward at this time, it means that the self-resetting louver can be opened smoothly. It means that the upper pad 15 cannot move downward, which may be due to adhesion to the mating cover 8. To increase the accuracy of the detection, the traction rod consists of two parts: an upper rod body 30 and a lower rod body 31. The diameter of the lower rod body 31 is larger than that of the upper rod body 30. A blind channel is provided on the lower rod body 31, extending downward from the upper end of the lower rod body 31, so that the lower end of the upper rod body 30 is located in the blind channel. When the lower rod body 31 is pulled upward, the upper rod body 30 can be moved upward. When the lower rod body 31 cannot be pulled upward, the upper rod body 30 can be pulled upward. If the upper rod body 30 can be moved upward, it indicates that there is a malfunction in the automatic reset louver, causing the horizontal blades 6 to fail to flip open smoothly.

[0039] See Figures 6 to 8 As shown, in this technical solution, a side guard plate 24 is also provided. The side guard plate 24 is long and strip-shaped and is located between the mating cover 8 and the positioning frame 7. The bottom side of the side guard plate 24 contacts the positioning frame 7. A horizontally arranged guide rod 32 is provided on the side guard plate 24. A positioning sleeve 33 is sleeved on the guide rod 32 and installed on the bottom pad 14. A tension reset member 34 is provided between the guide rod 32 and the positioning sleeve 33. The tension reset member 34 is a tension reset spring. A guide plate 35 is provided on the side guard plate 24. The guide plate 35 has a guide edge. When the upper pad 15 moves downward, the upper pad 15 contacts the guide edge on the guide plate 35. As the upper pad 15 moves, the side guard plate 24 can move away from the support column 17. At this time, the side guard plate 24 pushes out the residual snow and debris between the mating cover 8 and the positioning frame 7, so as to avoid affecting the upward movement of the mating cover 8 and at the same time, to prevent the debris from affecting the gas flow.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy storage compartment with an explosion-proof structure, characterized in that, include: The cabin (1) is equipped with an explosion-proof partition (2) inside, which divides the interior space of the cabin (1) into a battery compartment and an electrical compartment. The pressure balancing pipe is installed on the explosion-proof partition (2) and can connect the battery compartment and the electrical compartment. The side wall explosion relief assembly is installed on the side wall of the compartment (1). When opened, it can form a primary explosion relief channel for depressurizing the compartment (1). During the depressurization process, it can limit the flame inside the compartment (1) from being ejected to the side. The top cover explosion relief assembly is installed on the top wall of the cabin (1). When opened, it can form a secondary explosion relief channel. When it is combined with the side wall explosion relief assembly, it forms a dual-stage pressure relief. When the pressure relief capacity of the primary explosion relief channel is insufficient, it can be depressurized through the secondary explosion relief channel. The sidewall explosion relief assembly includes a ceramic fire-retardant layer (3) to prevent flames inside the cabin (1) from flowing outward.

2. The energy storage compartment with an explosion-proof structure according to claim 1, characterized in that, The pressure balancing pipeline includes: The tube body penetrates the explosion-proof partition (2); One-way explosion-proof valve (13) is installed at both ends of the pipe body to seal the pipe body.

3. The energy storage compartment with an explosion-proof structure according to claim 1, characterized in that, The sidewall explosion relief assembly also includes a self-resetting louver that can be opened to connect the interior of the cabin (1) with the exterior, allowing the gas inside the cabin (1) to be discharged.

4. The energy storage compartment with an explosion-proof structure according to claim 3, characterized in that, The ceramic fire-retardant layer (3) includes: Ceramic blocks, consisting of several interlocking components; The ceramic block has honeycomb holes, which allow the flame to pass through it.

5. The energy storage compartment with an explosion-proof structure according to claim 4, characterized in that, The The pore density of the honeycomb cells is ≥300 CPSI and the wall thickness is ≤0.25 mm, with an open area ratio >65%.

6. The energy storage compartment with an explosion-proof structure according to claim 3, characterized in that, The self-resetting louver includes: There are several horizontal blades (6), and the several horizontal blades (6) are arranged at equal intervals. Each horizontal blade (6) is connected to a rotating shaft at its end, so that the horizontal blade (6) can rotate around the rotating shaft and two adjacent horizontal blades (6) can overlap. A reset component is provided on the rotating shaft to reset the horizontal blade (6).

7. The energy storage compartment with an explosion-proof structure according to claim 1, characterized in that, The explosion venting assembly for the top cover includes: The positioning frame (7) is installed on the cabin (1); The top cover is movably connected to the positioning frame (7) and can move upward, so that there is a pressure relief gap between the top cover and the positioning frame (7).

8. The energy storage compartment with an explosion-proof structure according to claim 7, characterized in that, The top cover includes a mating cover (8), which is located above the positioning frame (7). The mating cover (8) is provided with a top explosion vent (10), and a movable pressure relief cover (11) is provided inside the top explosion vent (10). After the pressure relief cover (11) is moved, the top explosion vent (10) can be in an open state.

9. The energy storage compartment with an explosion-proof structure according to claim 7, characterized in that, The positioning frame (7) has a guide post passing through it. The upper end of the guide post is connected to the top cover. The lower end of the guide post is provided with an anti-detachment cap. Normally, a support sleeve (12) is fitted on the guide post. The support sleeve (12) is located between the anti-detachment cap and the positioning frame (7) and can deform under pressure.

10. The energy storage compartment with an explosion-proof structure according to claim 7, characterized in that, A sealing component is provided between the positioning frame (7) and the top cover. The sealing component supports the top cover and can be separated from both the positioning frame (7) and the top cover at the same time.

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