Exhaust pressure relief structure and battery container

Abstract

The utility model discloses an exhaust pressure relief structure and a battery container, and the exhaust pressure relief structure comprises an exhaust assembly which comprises an air inlet, an air outlet and a pressure relief channel communicated with the air inlet and the air outlet; the multiple supporting beams are arranged, and each supporting beam is parallel to the exhaust assembly; the battery pack guide rail group comprises at least two sliding rails and is used for installing a battery pack, the battery pack guide rail group is connected with each supporting beam, and one end of the battery pack guide rail group faces towards an air inlet of the exhaust assembly so that a pressure release valve of the battery pack can abut against and be communicated with the air inlet. Particularly, the structure of the pressure relief pipeline is simplified, the pressure relief valve of the battery pack abuts against the air inlet, redundant exhaust pipelines do not need to be installed, the space occupied by complex pipeline layout is reduced, the battery pack can have higher layout density in the container, and therefore the overall electric quantity is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially, relate to a exhaust pressure -relief structure and battery container. BACKGROUND

[0002] With the rapid development of new energy technology, lithium battery as important energy storage element, in electric automobile, energy storage power station etc. Field has obtained the extensive application. However, lithium battery under certain conditions (such as overcharge, short circuit, high temperature etc.) can occur thermal runaway, lead to the battery internal temperature sharp rise, and then cause active material and electrolyte decomposition, produce a large number of high temperature, combustible and toxic gas. The rapid accumulation of these gases can significantly increase the internal pressure of the battery, if not in time effective discharge, will seriously threaten the safety of battery system, and even cause fire or explosion.

[0003] In order to deal with the safety risk of lithium battery thermal runaway, the existing technology generally sets a pressure relief valve on the lithium battery monomer and battery pack (PACK). These pressure relief valves are designed as one-way valves, which can automatically open when the internal pressure of the battery reaches the preset threshold, and the high-temperature flue gas and combustible gas are discharged, so as to protect the battery pack from further damage. However, in large energy storage systems, such as container-type energy storage power stations, multiple battery packs are arranged closely, and the risk of thermal runaway propagation between them increases significantly.

[0004] At present, the mainstream solution to the problem of battery pack thermal runaway exhaust in the container on the market is to connect the pressure relief valve of each battery pack to the outside of the container one by one through a complex pipeline system to realize the unified discharge of high-temperature flue gas and combustible gas. Although this method can ensure the safety of the system to a certain extent, it has many disadvantages: first, the complex pipeline layout not only increases the difficulty of system design and installation, but also greatly occupies the valuable space inside the container, reducing the layout density of the battery pack and the overall power; second, the high cost of pipeline materials and installation also increases the overall investment of the energy storage system; finally, the existence of the pipeline system may also become a new failure point, affecting the reliability and maintainability of the system. UTILITY MODEL CONTENT

[0005] In order to overcome at least one of the defects of the prior art described above, the utility model provides an exhaust pressure -relief structure and battery container. It can solve the problem of low space utilization and complex structure caused by too many pipelines.

[0006] The technical scheme adopted by the utility model to solve the problem is:

[0007] An exhaust pressure relief structure, comprising: an exhaust assembly, the exhaust assembly comprising an air inlet, an exhaust outlet, and a pressure relief channel connecting the air inlet and the exhaust outlet; a plurality of support beams, each of the support beams being arranged parallel to the exhaust assembly; a battery pack guide rail set, the battery pack guide rail set comprising at least two slide rails for mounting a battery pack, the battery pack guide rail set being connected to each of the support beams, one end of the battery pack guide rail set being directed towards the air inlet of the exhaust assembly so that a pressure relief valve of the battery pack is in abutting connection with the air inlet.

[0008] By adopting the above scheme, by designing an exhaust assembly comprising an air inlet, an exhaust outlet and a pressure relief channel, and by the support beams and the battery pack guide rail set, a simple connection structure capable of accommodating and fixing the battery pack is realized, the pipeline system is significantly simplified, by abutting the pressure relief valve of the battery pack with the air inlet, without the need to install an extra exhaust pipeline, the space occupied by the complex pipeline layout is reduced. Therefore, the battery pack can have a higher layout density in the container, thereby improving the overall power.

[0009] Further, the battery pack guide rail set is provided in multiple groups, and the multiple groups of battery pack guide rail sets are stacked in parallel on the plurality of support beams, the number of the battery pack guide rail sets is consistent with the number of the air inlets of the exhaust assembly.

[0010] By adopting the above scheme, not only the installation density of the battery pack is increased, but also good ventilation and exhaust conditions are maintained, the pressure relief valve of each battery pack can be directly connected to the corresponding air inlet without additional pipeline connection, greatly simplifying the complexity of the exhaust system and reducing the risk of failure.

[0011] Further, a sealing element is arranged on the pressure relief valve and / or the air inlet.

[0012] By adopting the above scheme, it is ensured that the gas, liquid or solid inside the system will not leak to the external environment, and at the same time, external impurities are prevented from entering the system. Thus, the sealing, safety and stability of the system are ensured.

[0013] Further, the exhaust assembly comprises: a cover plate, the cover plate being recessed inside to form a receiving groove; a back plate, the exhaust outlet being arranged on the back plate, the back plate cover being arranged on the receiving groove; a flow guide plate, the flow guide plate being assembled in the receiving groove, the pressure relief channel being located between the flow guide plate and the cover plate.

[0014] By adopting the above scheme, the flow guide plate ensures that the gas can be smoothly discharged from the receiving groove, and the residence time in the receiving groove is reduced.

[0015] Furthermore, the cover plate is provided with an assembly lip plate on its edge. The assembly lip plates exist in pairs, and each pair of assembly lip plates is respectively provided on two opposite edges of the cover plate. The assembly lip plates are fitted and connected to the back plate.

[0016] By adopting the above solution, a more robust support is provided for the connection between the cover plate and the back plate, which helps to prevent high-temperature flue gas and combustible gas from leaking from the joints of the components during the exhaust process, thus ensuring the airtightness of the exhaust system.

[0017] Furthermore, a drain pipe is provided on the side of the cover plate away from the guide plate, and a water flow channel is enclosed between the guide plate and the back plate, the water flow channel being connected to the drain pipe and the exhaust port.

[0018] By adopting the above solution, when rainwater enters the receiving tank from the vent on the cover, it can flow along the water flow channel to the drain pipe and be discharged, which helps to reduce the retention of water inside the system.

[0019] Furthermore, the guide plate is provided with a flow guiding structure on the side facing the cover plate. The flow guiding structure includes: at least one flow channel, which is a unidirectional flow channel, and the flow direction of the flow channel is from the air inlet to the exhaust port; and a confluence channel, which is connected to one end of the outlet of the flow channel and communicates with the exhaust port.

[0020] By adopting the above scheme, the flow guiding structure ensures that the gas can flow from the inlet to the outlet along the designed path, and the one-way flow channel ensures the orderliness and controllability of the gas flow. The function of the manifold is to collect the gas from each flow channel and guide them into the outlet.

[0021] Furthermore, a fastening device is provided at the other end of the battery pack guide rail assembly, which restricts the battery pack from moving away from the air inlet.

[0022] By adopting the above solution, it can be ensured that the air inlet and the pressure relief valve of the battery pack are tightly connected and will not loosen.

[0023] Furthermore, the fastening device includes: a screw sleeve, which is fixed to the end of the slide rail away from the exhaust assembly; a fixing plate, which is arranged perpendicular to the screw sleeve; and a fastener, which passes through the fixing plate and is connected to the screw sleeve.

[0024] By adopting the above solution, the battery pack can be fixed on the slide rail by rotating the fixing component. At the same time, as the fixing component is tightened, the connection between the air inlet and the pressure relief valve of the battery pack can be made tighter, thereby improving the sealing performance.

[0025] A battery container includes an outer shell, a door frame, a battery pack, and an exhaust and pressure relief structure located within the outer shell. The door frame is disposed on one side of the outer shell, and the exhaust assembly is disposed within the outer shell on the side opposite to the door frame. Support beams are spaced apart between the exhaust assembly and the door frame.

[0026] By adopting the above scheme, the outer shell is the main structure of the battery container, used to protect the internal battery packs and other critical components from the influence of the external environment. The door frame is set on one side of the outer shell for installing door panels, thereby providing access to the interior of the container, such as for installing battery packs. The main function of the support beam is to enhance the structural strength of the container and maintain the assembly stability of the battery packs, preventing deformation or damage to the battery packs during transportation or use. The exhaust assembly can promptly discharge the high-temperature gases and flammable gases accumulated inside the battery pack in emergency situations such as thermal runaway, thereby reducing the risk of explosion and fire. Moreover, multiple battery packs can share one exhaust assembly, greatly reducing space occupation issues.

[0027] In summary, the exhaust and pressure relief structure and battery container provided by this utility model have the following technical effects:

[0028] 1. By simplifying the piping system through the installation of an exhaust assembly, and by placing the battery pack's pressure relief valve against the air inlet, there is no need to install additional exhaust pipes, reducing the space occupied by complex piping layouts. The compact connection between the support beams and battery pack guide rails allows for a higher layout density of the battery pack within the container, thereby improving overall power capacity and energy storage efficiency.

[0029] 2. In the event of an emergency such as thermal runaway in the battery pack, the venting assembly can quickly expel the accumulated high-temperature gases and flammable gases, effectively reducing the risk of explosion and fire. This design helps protect the battery pack and the entire energy storage system.

[0030] 3. By reducing piping materials and complex installation processes, the system design and installation costs are significantly reduced, as are the additional maintenance costs that may arise due to piping problems;

[0031] 4. Since the battery pack is connected to the support beam via guide rails, maintenance or replacement of the battery pack can be carried out more conveniently and quickly, and it has high flexibility. The layout and quantity of the battery pack, as well as the position and specifications of the venting components, can be adjusted according to actual needs to adapt to different scales and types of energy storage systems. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the exhaust pressure relief structure according to an embodiment of the present utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of the battery container according to an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram of the exhaust assembly structure according to an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the exploded structure of the exhaust assembly according to an embodiment of the present utility model;

[0036] Figure 5 This is a schematic cross-sectional view of the exhaust assembly according to an embodiment of the present invention;

[0037] Figure 6 This is an enlarged structural schematic diagram of the fastening device according to an embodiment of the present utility model;

[0038] Figure 7 This is a partial exploded structural diagram of the fastening device according to an embodiment of the present invention;

[0039] Figure 8 This is a partially exploded structural diagram of the exhaust assembly and battery pack according to an embodiment of the present invention. The reference numerals have the following meanings: 1. Exhaust assembly; 11. Air inlet; 12. Exhaust outlet; 13. Pressure relief channel; 14. Cover plate; 141. Receiving groove; 142. Assembly lip plate; 15. Back plate; 16. Guide plate; 17. Drain pipe; 18. Water flow channel; 181. Gap; 19. Guide structure; 191. Flow channel; 192. Merging groove; 2. Support beam; 3. Battery pack guide rail assembly; 31. Slide rail; 4. Battery pack; 41. Pressure relief valve; 42. Sealing element; 5. Fastening device; 51. Screw sleeve; 52. Fixing plate; 53. Fixing element; 54. L-shaped plate; 6. Door frame. Detailed Implementation

[0040] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0041] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0042] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0044] See Embodiment 1 of this utility model. Figures 1-8 As shown, a venting and pressure relief structure is disclosed, including a venting component 1, a support beam 2, and a battery pack guide rail assembly 3. The support beam 2 is used to provide support for the battery pack 4 guide rail, the battery pack 4 guide rail is used to assemble the battery pack 4, and the venting component 1 is used to communicate with the pressure relief valve 41 of the battery pack 4 to realize the pressure relief and venting function of the battery pack 4 and avoid the pressure relief airflow from causing secondary impact on the battery pack 4 itself. Specifically, the exhaust assembly 1 includes an air inlet 11, an exhaust outlet 12, and a pressure relief channel 13 connecting the air inlet 11 and the exhaust outlet 12. Multiple support beams 2 are provided, each parallel to the exhaust assembly 1. The battery pack guide rail assembly 3 includes at least two slide rails 31 for mounting the battery pack 4. Preferably, two slide rails 31 are provided and face each other to support the bottom or sides of the battery pack 4 without affecting its sliding. The battery pack guide rail assembly 3 is connected to each support beam 2. Preferably, the support beam 2 is perpendicularly connected to the battery pack guide rail assembly 3 to improve connection stability. One end of the battery pack guide rail assembly 3 faces the air inlet 11 of the exhaust assembly 1, so that the pressure relief valve 41 of the battery pack 4 is connected to the air inlet 11. By designing the exhaust assembly 1 and achieving a simple connection structure that can accommodate and fix the battery pack 4 through the support beam 2 and the battery pack guide rail assembly 3, the internal piping system of the battery container is significantly simplified. Specifically, by connecting the pressure relief valve 41 of the battery pack 4 to the air inlet 11, there is no need to install extra exhaust pipes, reducing the space occupied by complex piping layouts. Therefore, the battery pack 4 can have a higher layout density within the container, thereby improving the overall power capacity.

[0045] In some embodiments, multiple battery packs 4 can be installed inside the battery container. For this purpose, multiple sets of battery pack guide rails 3 can be installed on multiple support beams 2. These multiple sets of battery pack guide rails 3 are stacked parallel to each other on the multiple support beams 2. The number of battery pack guide rails 3 is consistent with the number of air inlets 11 of the exhaust assembly 1. This arrangement not only increases the installation density of the battery packs 4 but also maintains good ventilation and exhaust conditions. The pressure relief valve 41 of each battery pack 4 can be directly connected to the corresponding air inlet 11 without the need for additional piping connections, greatly simplifying the complexity of the exhaust system and reducing the risk of failure. Preferably, the support beams 2 and the battery pack guide rails 3 are fixedly connected, including but not limited to snap-fit, welding, bonding, or screwing. In this embodiment 1, the support beams 2 and the battery pack guide rails 3 are fixed together by L-shaped plates 54 and bolts.

[0046] To improve the airtightness of the connection between the pressure relief valve 41 and the air inlet 11 of the battery pack 4, in some embodiments, a sealing element 42 is provided on the pressure relief valve 41 and / or the air inlet 11 to ensure that the gas, liquid, or solid inside the system does not leak into the external environment, and also to prevent external impurities from entering the system. This ensures the system's sealing performance, safety, and stability. In this embodiment 1, the sealing element 42 is dense foam, wrapped around the edge of the pressure relief valve 41, and abuts against the air inlet 11 for sealing. It can be circular or square; alternatively, it can be pasted onto the outer circumference of the pressure relief valve 41, abutting against the outer circumference of the air inlet 11 for sealing. Optionally, the battery pack guide rail assembly 3 can be tilted, that is, the closer the battery pack guide rail assembly 3 is to the air inlet 11, the lower its height. A sliding groove parallel to the battery pack guide rail assembly 3 is provided on the side of the battery pack 4, so that when the battery pack 4 is placed in the battery pack guide rail assembly 3, it will automatically slide diagonally downward towards the air inlet 11 under the influence of gravity, so as to achieve the effect of abutting against the air inlet 11 and having a certain compression potential energy, thereby achieving sealing.

[0047] This utility model also relates to a battery container, including an outer shell (not shown in the figure), a door frame 6, a battery pack 4, and an exhaust and pressure relief structure located inside the outer shell. The outer shell is the main structure of the battery container, used to protect the internal battery pack 4 and other key components from the influence of the external environment. The door frame 6 is located on one side of the outer shell and is used to install a door panel, thereby providing access to the interior of the container. For example, the door frame can be opened to install the battery pack 4. Multiple battery packs 4 can be arranged and stacked vertically. The door frame 6 is located on one side of the outer shell. The exhaust assembly 1 is located inside the outer shell on the side opposite to the door frame 6. The support beams 2 are spaced apart from the outer shell. In this embodiment 1, between the exhaust assembly 1 and the door frame 6, each battery pack guide rail group 3 is connected to 8 support beams 2, of which each slide rail 31 is connected to 4 support beams 2, which can provide stable support for each battery pack guide rail group 3, maintain the assembly stability of the battery pack 4, and enhance the structural strength of the container to prevent the battery pack 4 from deforming or being damaged during transportation or use; the exhaust assembly 1 is connected to the pressure relief valves 41 of multiple battery packs 4, so that in case of emergency such as thermal runaway of the battery pack 4, the high temperature gas and flammable gas accumulated inside can be discharged in time to reduce the risk of explosion and fire, and multiple battery packs 4 can share one exhaust assembly 1, which greatly reduces the space occupation problem.

[0048] In one specific embodiment, the exhaust assembly 1 includes a cover plate 14, a back plate 15, and a guide plate 16. The cover plate 14 has a recessed interior forming a receiving groove 141. The exhaust port 12 is located on the back plate 15, which covers the receiving groove 141. The guide plate 16 is assembled within the receiving groove 141. The pressure relief channel 13 is located between the guide plate 16 and the cover plate 14. The guide plate 16 ensures that gas can be smoothly discharged from the receiving groove 141 and reduces the residence time within the receiving groove 141. In this embodiment 1, the back plate 15 is the outer shell opposite to the door frame 6. The exhaust port 12 on the back plate 15 is used to discharge the depressurized gas outside the battery container. Optionally, the exhaust port 12 may include, but is not limited to, a mesh structure or a porous structure. In this embodiment 1, the exhaust port 12 is a porous structure, and multiple holes are combined to form a hexagonal structure, which has the advantages of convenient processing, low cost, and stable structure. In other embodiments, the shapes can also be combined into rectangles, circles, or other shapes; this embodiment does not impose any specific limitations.

[0049] In some embodiments, to improve the assembly stability between the cover plate 14 and the back plate 15, an assembly lip plate 142 is provided on the edge of the cover plate 14. The assembly lip plates 142 exist in pairs, with each pair of assembly lip plates 142 respectively disposed on two opposite edges of the cover plate 14. The assembly lip plates 142 are fitted and connected to the back plate 15. In this embodiment 1, the assembly lip plates 142 are located on the two long sides of the cover plate 14, providing a more stable support for the connection between the cover plate 14 and the back plate 15, which helps to prevent high-temperature flue gas and combustible gas from leaking from the joints of the components during exhaust, ensuring the sealing of the exhaust system. In other embodiments, multiple pairs of assembly lip plates 142 can be provided on the long sides, and assembly lip plates 142 can also be provided on the short sides. This embodiment does not make specific limitations.

[0050] Since the vent 12 is located on the outer shell of the battery container, rainwater will enter the vent assembly 1 through the vent 12 when it rains. To solve this problem, in this embodiment 1, a drain pipe 17 is provided on the side of the cover plate 14 away from the guide plate 16. The drain pipe 17 can lead to the ground. A water flow channel 18 is enclosed between the guide plate 16 and the back plate 15. The water flow channel 18 is connected to the drain pipe 17 and the vent 12. When rainwater enters the receiving tank 141 from the vent 12 on the cover plate 14, it can flow along the water flow channel 18 to the drain pipe 17 and be discharged, which helps to reduce the retention of water inside the system. It should be noted that in order to keep the drain pipe 17, the vent 12 and the water flow channel 18 unobstructed, a certain gap 181 is reserved at both ends of the guide plate 16. This gap 181 allows water inside the pressure relief channel 13 to also be discharged through the drain pipe 17, avoiding the accumulation of water inside the pressure relief channel 13. In other embodiments, an explosion-proof valve may be installed at the exhaust port 12 to prevent rainwater from entering without affecting the discharge of the depressurized gas.

[0051] To facilitate smoother gas flow within the pressure relief channel 13, in some embodiments, a flow guiding structure 19 is provided on the side of the guide plate 16 facing the cover plate 14. The flow guiding structure 19 includes at least one flow channel 191 and a confluence channel 192. The flow channel 191 is a unidirectional flow channel, flowing from the air inlet 11 to the exhaust port 12. The confluence channel 192 is connected to the outlet end of the flow channel 191 and communicates with the exhaust port 12. Thus, the flow guiding structure 19 ensures that the gas can flow from the air inlet 11 to the exhaust port 12 along a designed path, and the unidirectional flow channel 191 ensures the orderliness and controllability of the gas flow. The function of the confluence channel 192 is to collect the gas from each flow channel 191 and guide them into the exhaust port 12. Optionally, the unidirectional flow of gas within the flow channel 191 can be achieved by, but is not limited to, setting a one-way valve or a unidirectional flow structure, which can prevent the airflow direction from shifting and avoid affecting the temperature of other battery packs 4. In this embodiment 1, the flow channel 191 applies the Tesla valve structure principle, which accelerates the gas and reduces the energy loss of the gas during transportation through physical spatial structure. At the same time, this structure utilizes fluid inertia to achieve a sharp increase in flow resistance when flowing in the opposite direction, thus having unidirectional conduction characteristics.

[0052] To ensure stable assembly of the battery pack 4 within the battery container and maintain the airtight connection between the pressure relief valve 41 of the battery pack 4 and the air inlet 11 of the exhaust assembly 1, in some embodiments, a fastening device 5 is also provided at the other end of the battery pack guide rail assembly 3. The fastening device 5 restricts the displacement of the battery pack 4 away from the air inlet 11, ensuring a tight connection between the air inlet 11 and the pressure relief valve 41 of the battery pack 4, preventing loosening. In this embodiment 1, the fastening device 5 includes a screw sleeve 51, a fixing member 53, and a fixing plate 52. Preferably, the fixing member 53 is a bolt. The screw sleeve 51 is fixed to the end of the slide rail 31 away from the exhaust assembly 1. The fixing plate 52 is set perpendicular to the screw sleeve 51. The fixing member 53 passes through the fixing plate 52 and is connected to the screw sleeve 51. In use, the battery pack 4 can be fixed on the slide rail 31 by rotating the fixing member 53. At the same time, as the fixing member 53 is tightened, it can ensure that the air inlet 11 and the pressure relief valve 41 of the battery pack 4 are more tightly connected, thereby improving the sealing performance. When the door frame 6 drives the door panel to rotate and open, the fixing member 53 can be loosened to release the fixing member 53. At this time, the battery pack 4 can slide out from the slide rail 31, which is convenient for the battery pack 4 to be taken out and replaced.

[0053] In summary, the exhaust and pressure relief structure and battery container provided by this utility model have the following technical effects:

[0054] 1. By simplifying the piping system with exhaust assembly 1, the space occupied by complex piping layouts is reduced. The compact connection between support beam 2 and battery pack guide rail assembly 3 allows for a higher layout density of battery pack 4 within the container, thereby improving overall power capacity and energy storage efficiency.

[0055] 2. In the event of an emergency such as thermal runaway in battery pack 4, the venting assembly 1 can quickly expel the accumulated high-temperature gases and flammable gases inside, effectively reducing the risk of explosion and fire. This design helps protect the safety of battery pack 4 and the entire energy storage system;

[0056] 3. By reducing piping materials and complex installation processes, the system design and installation costs are significantly reduced, as are the additional maintenance costs that may arise due to piping problems;

[0057] 4. Since the battery pack 4 is connected to the support beam 2 via guide rails, it is easier and faster to maintain or replace the battery pack 4. It also has high flexibility, and the layout and quantity of the battery pack 4, as well as the position and specifications of the exhaust assembly 1, can be adjusted according to actual needs to adapt to different scales and types of energy storage systems.

[0058] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A venting and pressure relief structure, characterized in that, include: An exhaust assembly (1) includes an air inlet (11), an exhaust outlet (12), and a pressure relief passage (13) connecting the air inlet (11) and the exhaust outlet (12); Support beams (2), multiple support beams (2) are provided, and each support beam (2) is arranged parallel to the exhaust assembly (1); A battery pack guide rail assembly (3) includes at least two slide rails (31) for mounting the battery pack (4). The battery pack guide rail assembly (3) is connected to each of the support beams (2). One end of the battery pack guide rail assembly (3) faces the air inlet (11) of the exhaust assembly (1) so that the pressure relief valve (41) of the battery pack (4) is in contact with the air inlet (11).

2. The exhaust pressure relief structure according to claim 1, characterized in that, The battery pack guide rail group (3) is provided in multiple sets, and the multiple sets of battery pack guide rail groups (3) are stacked in parallel on multiple support beams (2). The number of battery pack guide rail groups (3) is the same as the number of air inlets (11) of the exhaust assembly (1).

3. The exhaust pressure relief structure according to claim 1 or 2, characterized in that, The pressure relief valve (41) and / or the air inlet (11) are provided with a seal (42).

4. A venting and depressurization structure according to claim 1 or 2, characterized in that, The exhaust assembly (1) includes: Cover plate (14), the interior of which is recessed to form a receiving groove (141); The back plate (15) has an exhaust port (12) located on it, and the back plate (15) covers the receiving groove (141). A flow guide plate (16) is assembled in the receiving groove (141), and the pressure relief channel (13) is located between the flow guide plate (16) and the cover plate (14).

5. The exhaust pressure relief structure according to claim 4, characterized in that, The cover plate (14) is provided with an assembly lip plate (142) on its edge. The assembly lip plates (142) exist in pairs. Each pair of assembly lip plates (142) is respectively provided on two opposite edges of the cover plate (14). The assembly lip plates (142) are fitted and connected to the back plate (15).

6. The exhaust pressure relief structure according to claim 4, characterized in that, A drain pipe (17) is provided on the side of the cover plate (14) away from the guide plate (16). A water flow channel (18) is enclosed between the guide plate (16) and the back plate (15). The water flow channel (18) is connected to the drain pipe (17) and the exhaust port (12).

7. The exhaust pressure relief structure according to claim 4, characterized in that, The flow guide plate (16) has a flow guide structure (19) on the side facing the cover plate (14), and the flow guide structure (19) includes: At least one flow channel (191), the flow channel (191) is a unidirectional flow channel (191), the flow direction of the flow channel (191) is from the air inlet (11) to the exhaust port (12); The manifold (192) is connected to one end of the outlet of the flow channel (191) and communicates with the exhaust port (12).

8. A venting and depressurization structure according to claim 1 or 2, characterized in that, The other end of the battery pack guide rail assembly (3) is provided with a fastening device (5), which restricts the battery pack (4) from moving away from the air inlet (11).

9. The exhaust pressure relief structure according to claim 8, characterized in that, The fastening device (5) includes: Screw sleeve (51), the screw sleeve (51) is fixed to the end of the slide rail (31) away from the exhaust assembly (1); A fixing plate (52) is provided perpendicular to the screw sleeve (51); A fastener (53) is inserted through the fixing plate (52) and connected to the screw sleeve (51).

10. A battery container, characterized in that, The device includes an outer shell, a door frame (6), a battery pack (4), and an exhaust pressure relief structure as described in any one of claims 1-9 located within the outer shell. The door frame (6) is disposed on one side of the outer shell, the exhaust assembly (1) is disposed on the side of the outer shell opposite to the door frame (6), and the support beam (2) is spaced between the exhaust assembly (1) and the door frame (6).

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