Protective structure and energy storage system

Abstract

The utility model discloses a protection structure and an energy storage system, relates to the related technical field of energy storage systems, and is used for solving the problem of poor protection performance of an existing protection cover. The protection structure is arranged outside a box body and comprises a protection cover and a drainage part, the protection cover is arranged on a top plate of the box body in a buckled mode and comprises a cover plate and a surrounding plate, the cover plate and the top plate are oppositely arranged, the surrounding plate is connected between the cover plate and the top plate so as to jointly define a protection cavity, and a part to be protected is located in the protection cavity; the drainage part is arranged at the end, close to the top plate, of the coaming so that rainwater can be drained away from the protection cavity. The rainwater guiding device is used for guiding rainwater in the direction away from the protection cavity, so that the rainwater is prevented from entering the protection cavity through the joint of the surrounding plate and the top plate after being accumulated on the top plate.

Description

Technical Field

[0001] This application relates to the technical field of energy storage systems, specifically to a protective structure and an energy storage system. Background Technology

[0002] Energy storage systems typically consist of a housing and battery modules housed within it. The battery modules generate heat during operation. To ensure thermal management and safe operation of the energy storage system, ventilation holes are usually provided on the top plate of the energy storage housing to optimize airflow and temperature control, so that the energy storage system can operate within a safe range.

[0003] The vents mentioned above are typically covered with protective covers to prevent rainwater from entering the container's interior and protecting the battery modules. However, existing protective covers usually consist of a cover plate and side panels, and water accumulated on the top of the container can easily enter the protective cover from the edges of the side panels, resulting in poor protective performance. Utility Model Content

[0004] This application provides a protective structure and energy storage system that can solve the problem of poor protective performance of existing protective covers.

[0005] To achieve the above objectives, in a first aspect, the present application provides a protective structure disposed outside the box body. The protective structure includes a protective cover and a drainage section. The protective cover is fastened to the top plate of the box body. The protective cover includes a cover plate and a surrounding plate. The cover plate and the top plate are disposed opposite to each other. The surrounding plate is connected between the cover plate and the top plate to jointly enclose and form a protective cavity. The drainage section is disposed at the end of the surrounding plate near the top plate so that rainwater is discharged in a direction away from the protective cavity.

[0006] In some embodiments of this application, the drainage section includes a drainage plate having a connecting end and an extension end disposed opposite to each other. The connecting end is connected to the side of the enclosure facing the top plate, and the extension end extends outward toward the protective cover.

[0007] In some embodiments of this application, the enclosure and the drainage board are an integral structure, with the drainage board bent relative to the enclosure.

[0008] In some embodiments of this application, the drainage board has an outer end face facing away from the top plate, and a guide portion is provided on the outer end face to guide rainwater to flow away from the protective cavity.

[0009] In some embodiments of this application, the outer end face is inclined to form a guide portion, and the distance between the outer end face and the top plate gradually decreases from the connecting end to the extension end.

[0010] In some embodiments of this application, the flow guide includes a flow guide groove recessed on the outer end face, and the distance between the bottom of the flow guide groove and the top plate gradually decreases along the direction away from the protective cavity.

[0011] In some embodiments of this application, the guide channel passes through the drainage plate located on the end face of the extension end.

[0012] In some embodiments of this application, the drainage part includes a mounting base, which is sealed to the top plate. The mounting base is provided with a communicating mounting groove and a guide portion. The mounting groove is recessed on the end face of the mounting base facing away from the top plate. At least a portion of the surrounding plate near the top plate is provided in the mounting groove. The guide portion communicates with the outside of the mounting groove and the protective cover.

[0013] In some embodiments of this application, the protective structure further includes a flow guiding component, an exhaust hole is provided on the enclosure, the exhaust hole connects the protective cavity to the outside of the protective cover, and the flow guiding component is connected to the enclosure and covers the exhaust hole.

[0014] In some embodiments of this application, the flow guiding component includes louvers and dustproof cotton. The louvers are connected to the enclosure and cover the exhaust holes, and the dustproof cotton is disposed on the side of the louvers facing the protective cavity.

[0015] In some embodiments of this application, the protective structure has intersecting first and second directions, the cover plate and the top plate are arranged opposite each other in the first direction, and the louver includes a plurality of blades arranged along the first direction, the orthographic projection portions of each two adjacent blades overlap in the first direction, and the overlapping portions of the orthographic projections of the two blades are spaced apart in the second direction.

[0016] In some embodiments of this application, each blade includes an inclined plate having a first end and a second end disposed opposite each other in a first direction, the first end being closer to the cover plate and closer to the dustproof cotton than the second end.

[0017] In some embodiments of this application, the protective structure further includes a first insulation plate, which is disposed on the side surface of the cover plate facing the protective cavity.

[0018] Secondly, the energy storage system provided in this application includes:

[0019] The protective structure described in any of the above technical solutions has a first direction;

[0020] The enclosure has an installation space inside. The enclosure includes a top plate and a bottom plate, which are located on opposite sides of the installation space in a first direction. A vent is provided on the top plate, which connects the installation space and the outside of the enclosure. A protective cover is provided on the outer periphery of the vent. The top plate and the cover are arranged opposite to each other in the first direction.

[0021] The battery module is located within the installation space.

[0022] In some embodiments of this application,

[0023] The protective structure has a second direction that intersects with the first direction;

[0024] The enclosure has at least two enclosures, which are arranged along a second direction, and each enclosure has a ventilation hole on its top plate.

[0025] The protective structure has at least two parts, and the protective cover of each protective structure is fastened to the outer periphery of the corresponding vent.

[0026] Each protective cover of the protective structure includes a first side plate and a second side plate arranged opposite each other in the second direction. The first side plate faces the adjacent protective structure and has no openwork structure.

[0027] In some embodiments of this application, the energy storage system includes:

[0028] Exhaust fan;

[0029] The top plate has a protrusion on the side facing away from the bottom plate. The protrusion surrounds the vent and the exhaust fan is located on the protrusion.

[0030] In some embodiments of this application, the exhaust fan includes a mounting housing, an exhaust fan and exhaust louvers disposed within the mounting housing, the exhaust louvers being farther away from the top plate relative to the exhaust fan;

[0031] A second insulation board is provided on the surface of the exhaust louver facing away from the top plate and / or on the outer peripheral side wall of the boss. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a perspective view of a protective structure according to an embodiment of this application;

[0034] Figure 2 This is a bottom view of a protective structure according to an embodiment of this application;

[0035] Figure 3 yes Figure 1 An enlarged view of part A in the diagram shows a flow guide in the protective structure;

[0036] Figure 4 This is a schematic diagram of another flow guide in a protective structure according to an embodiment of this application;

[0037] Figure 5 This is a perspective view of another protective structure in the embodiments of this application;

[0038] Figure 6This is a cross-sectional view of a protective structure in an embodiment of this application;

[0039] Figure 7 yes Figure 6 Enlarged view of part B in the image;

[0040] Figure 8 This is a perspective view of the energy storage system without a protective structure in the embodiments of this application;

[0041] Figure 9 This is a perspective view of the energy storage system with a protective structure in an embodiment of this application;

[0042] Figure 10 yes Figure 9 Enlarged view of section C in the image;

[0043] Figure 11 This is an exploded view of the energy storage system with a protective structure in an embodiment of this application;

[0044] Figure 12 yes Figure 11 Enlarged view of part D in the image;

[0045] Figure 13 This is a schematic diagram of the exhaust fan in the energy storage system in this application embodiment.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1-Protective cover; 1a-Protective cavity; 11-Cover plate; 12-Enclosure plate; 121-Exhaust hole; 1211-Lower edge; 122-First side plate; 123-Second side plate; 124-Third side plate; 125-Fourth side plate;

[0048] 2-Drainage section; 21-Drainage plate; 21a-Outer end face; 211-Connecting end; 212-Extension end; 213-Flow guide section; 2131-Flow guide groove; 22-Mounting base; 221-Mounting groove; 222-Conducting section;

[0049] 3-Flow guide assembly; 31-Veneer; 311-Blade; 3111-Inclined plate; 3111a-First end; 3111b-Second end; 312-Gap; 32-Dustproof cotton;

[0050] 4-First insulation board;

[0051] 10-Box body; 101-Top plate; 1011-Ventilation hole; 1012-Boss; 102-Bottom plate;

[0052] 20-Exhaust fan; 201-Mounting housing; 202-Exhaust fan; 203-Exhaust louvers;

[0053] 30 - Second insulation board;

[0054] Z - First direction; X - Second direction; Y - Third direction. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 application 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 application.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0058] In the description of this application, it should be noted that, unless otherwise expressly 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, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] This application provides a protective structure and an energy storage system, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0060] An energy storage system is a technology or device that can store energy and release it when needed. It is widely used in power systems, renewable energy generation, microgrids, home energy storage, and electric vehicles. An energy storage system typically includes battery modules, a battery management system, an energy conversion device, a thermal management system, and a control and communication system. For example, an energy storage system may also include a housing 10 (e.g., a container) for housing the battery modules, battery management system, energy conversion device, thermal management system, and control and communication system.

[0061] The top plate 101 of the energy storage container typically has a vent 1011. This vent 1011 is used to optimize airflow and temperature control, allowing hot air inside the container 10 to be discharged in a timely manner, preventing high temperature accumulation and ensuring the energy storage system operates within a safe range. The vent 1011 is usually surrounded by a protective cover 1 to prevent rainwater from entering the container's interior through the vent 1011, thus protecting the battery modules. However, existing protective covers 1 typically include a cover plate 11 and a surrounding plate 12. Water accumulated on the top plate 101 of the container 10 can easily enter the protective cover 1 through the edge of the surrounding plate 12, resulting in poor protective performance. Therefore, this application proposes a novel protective structure.

[0062] Reference Figure 1 and Figure 2 The protective structure provided in this application is used to protect the housing 10. Specifically, the protective structure is used to protect the ventilation holes 1011 (see reference numerals) opened on the top plate 101 of the housing 10. Figure 8 The protective structure is located outside the housing 10 and includes a protective cover 1 and a drainage section 2. The protective cover 1 is fastened to the top plate 101 and includes a cover plate 11 and a surrounding plate 12. The cover plate 11 and the top plate 101 are arranged opposite each other, and the surrounding plate 12 is connected between the cover plate 11 and the top plate 101 to jointly enclose and form a protective cavity 1a. The drainage section 2 is located at the end of the surrounding plate 12 near the top plate 101 to allow rainwater to drain away from the protective cavity 1a. In practical applications, the protective cover 1 can be connected to the top plate 101, and the vent 1011 can be located inside the protective cavity 1a to protect the vent 1011.

[0063] In this technical solution, a drainage section 2 is provided at one end of the enclosure 12 near the top plate 101 to allow rainwater to drain away from the protective cavity 1a. That is, the drainage section 2 guides rainwater away from the protective cavity 1a, effectively preventing rainwater from accumulating on the surface of the top plate 101 and allowing it to enter the protective cavity 1a through the joint between the enclosure 12 and the top plate 101, thus improving the protective or waterproof performance of the structure. Therefore, under severe weather conditions (such as heavy rainfall and the risk of water accumulation), the drainage section 2 can guide rainwater to flow away from the protective cavity 1a, ensuring the long-term reliability of the energy storage system.

[0064] Understandably, the drainage section 2 is located at one end of the enclosure 12 near the top plate 101 so that rainwater is discharged in a direction away from the protective cavity 1a. In other words, at least a portion of the drainage section 2 is located outside the protective cavity 1a.

[0065] The specific structure of the drainage section 2 will be described below with reference to several embodiments.

[0066] Example 1

[0067] like Figure 1 and Figure 2 As shown, the drainage section 2 includes a drainage plate 21. The drainage plate 21 has a connecting end 211 and an extension end 212 arranged opposite to each other. The connecting end 211 is connected to the side of the surrounding plate 12 facing the top plate 101, and the extension end 212 extends outward toward the protective cover 1. The connection between the connecting end 211 of the drainage plate 21 and the surrounding plate 12 maintains the sealing between the drainage plate 21 and the surrounding plate 12, ensuring that water does not enter the interior of the protective cover 1. The extension end 212 of the drainage plate 21 directly guides the water to the outside of the protective cover 1, making drainage more direct and effective, and preventing water backflow or accumulation in the area where the drainage section 2 is located. The design of the drainage plate 21 increases the flow path of water back to the protective cover 1 (flow path as shown in the figure). Figure 2 (As indicated by the solid arrow near the drainage plate 21). In other words, rainwater needs to bypass or cross the drainage section 2 to enter the interior of the protective cover 1. Therefore, the drainage plate 21 can effectively prevent rainwater from flowing back into the interior of the protective cover 1.

[0068] The enclosure 12 and the drainage board 21 are an integral structure, with the drainage board 21 bent relative to the enclosure 12. This design increases the overall strength of the protective structure, effectively preventing loosening or cracking of the drainage section 2 due to external pressure (such as wind or water flow) under extreme weather conditions like storms, ensuring the structure remains in good condition over the long term. Furthermore, it avoids gaps at the connection between the drainage section 2 and the enclosure 12, preventing the accumulation of moisture or dirt and the risk of corrosion or leakage. Additionally, manufacturing the drainage board 21 and enclosure 12 as a single unit reduces the number of processes, thereby lowering production costs and time. For example, the longitudinal section of the enclosure 12 is approximately L-shaped. In the manufacturing process, the drainage board 21 can be obtained by bending the bottom of the enclosure 12 to form a flanged structure.

[0069] Optionally, the aforementioned enclosure 12 includes a first side plate 122 and a second side plate 123 disposed opposite to each other in the second direction X. The bottom ends of the first side plate 122 and the second side plate 123 are provided with drainage parts 2 (e.g., drainage plates 21), which can increase the total area of ​​the drainage area, help disperse the drainage pressure of rainwater, and enable water to be discharged more quickly and effectively from different directions.

[0070] The drainage board 21 has an outer end face 21a facing away from the top plate 101. A guide portion 213 is provided on the outer end face 21a. The guide portion 213 guides rainwater to flow away from the protective cavity 1a. The design of the guide portion 213 effectively guides rainwater to flow along a predetermined direction, preventing the water from randomly dispersing or accumulating. That is, through clear water flow guidance, the design of the guide portion 213 ensures that rainwater will not diffuse into the interior of the protective cavity 1a, but will be quickly discharged along a predetermined path or direction, further reducing the risk of rainwater entering the protective cavity 1a.

[0071] like Figure 1 and Figure 3 As shown, the outer end face 21a is inclined to form a guide section 213. From the connecting end 211 to the extension end 212, the distance between the outer end face 21a and the top plate 101 gradually decreases. The inclined outer end face 21a ensures that the water flows along the lower part of the outer end face 21a (i.e., the side closer to the extension end 212) under the action of gravity, avoiding water stagnation or diffusion on the surface of the drainage plate 21. The gradually decreasing distance between the outer end face 21a and the top plate 101 helps to form a more direct guide channel, further optimizing the drainage path and improving the drainage effect.

[0072] It is understandable that the gradual decrease in distance between the outer end face 21a and the top plate 101 can be achieved in the following two ways. For example... Figure 3 As shown, the thickness of the drainage plate 21 gradually decreases from the connecting end 211 to the extension end 212. Alternatively, in some structures not shown in the accompanying drawings of this application, the thickness of the drainage plate 21 is moderate and consistent, but the drainage plate 21 is placed at an angle, such that the included angle between the surrounding plate 12 and the drainage plate 21 is greater than 90 degrees.

[0073] Example 2

[0074] The only difference between this embodiment and Embodiment 1 is the structure of the flow guide 213. In Embodiment 2, as... Figure 4 As shown, the flow guide 213 includes a flow guide groove 2131 recessed in the outer end face 21a. Along the direction away from the protective cavity 1a, the distance between the bottom of the flow guide groove 2131 and the top plate 101 gradually decreases. This application provides a more precise water flow channel through the design of the flow guide groove 2131. Water flows along the bottom of the flow guide groove 2131, effectively preventing water dispersion or stagnation, thereby improving the stability of the water flow and the discharge efficiency. Furthermore, the above design can also prevent water from rebounding or flowing in an undesirable direction, ensuring that the water always flows along a predetermined path and avoiding water accumulation problems caused by unstable water flow direction.

[0075] In addition, the design of the flow channel 2131 not only optimizes the water flow guidance, but also enhances the structural strength of the drainage plate 21.

[0076] To ensure smooth drainage of rainwater from the guide channel 2131, the guide channel 2131 extends through the end face of the drainage plate 21 located at the extension end 212, ensuring that water can drain smoothly and quickly, preventing water from stagnating in the guide channel 2131 and reducing water backflow. Alternatively, in some embodiments, drainage pipes can be designed, which are connected to each guide channel 2131 to direct rainwater to the target location.

[0077] Example 3

[0078] like Figure 5 As shown, the drainage section 2 includes a mounting base 22, which is sealed to the top plate 101. The mounting base 22 has a communicating mounting groove 221 and a guiding part 222. The mounting groove 221 is recessed on the end face of the mounting base 22 facing away from the top plate 101. At least a portion of the surrounding plate 12 near the top plate 101 is located within the mounting groove 221. The guiding part 222 connects the mounting groove 221 to the outside of the protective cover 1. In this way, the mounting base 22 is sealed to the top plate 101, which is equivalent to forming a protective barrier outside the protective cavity 1a and the protective cover 1, preventing rainwater or external water from seeping into the protective cover 1 (i.e., the protective cavity 1a). In other words, rainwater can only seep into the protective cover 1 (i.e., the protective cavity 1a) if the thickness of the accumulated water outside the top plate 101 is greater than the height of the mounting base 22. At least a portion of the enclosure 12 near the top plate 101 is located in the mounting groove 221, which ensures the correct position of the enclosure 12 in the drainage system and avoids irregular water flow path caused by the offset of the enclosure 12, thereby ensuring the effectiveness of the drainage channel.

[0079] In this embodiment, the conductive part 222 is a through hole provided on the mounting base 22. Alternatively, in some other embodiments, the conductive part 222 is a conductive pipe, one end of which is connected to the mounting groove 221 and the other end is connected to the outside of the protective cover 1.

[0080] The common parts in the above embodiments will be described in detail below.

[0081] Combination Figure 2 , Figure 6 and Figure 7The protective structure also includes a flow guiding component 3. An exhaust port 121 is provided on the enclosure 12, connecting the protective cavity 1a to the outside of the protective cover 1. The flow guiding component 3 is connected to the enclosure 12 and covers the exhaust port 121. Thus, the flow guiding component 3, covering the exhaust port 121, effectively prevents rainwater, dust, etc., from entering the protective cavity 1a through the exhaust port 121, thereby avoiding performance degradation caused by moisture or dust accumulation in the internal equipment. Through a special structural design (such as an inclined flow guiding surface or flow guiding groove 2131), the flow guiding component 3 can effectively prevent external airflow from flowing back into the protective cavity 1a, especially in windy weather, avoiding interference from external gases on the internal environment of the energy storage box. Furthermore, the flow guiding component 3 not only protects the exhaust port 121 but also guides the flow of gas discharged from the exhaust port 121 away from the protective cover 1, preventing hot air from circulating and accumulating around the box 10, thus affecting heat dissipation efficiency.

[0082] It should be noted that, in the embodiment where "the drainage section 2 includes a mounting base 22, the mounting base 22 is sealed to the top plate 101, the mounting base 22 is provided with a communicating mounting groove 221 and a guiding part 222, the mounting groove 221 is recessed on the end face of the mounting base 22 facing away from the top plate 101, at least a portion of the surrounding plate 12 near the top plate 101 is provided in the mounting groove 221, and the guiding part 222 communicates the mounting groove 221 and the outside of the protective cover 1", the mounting base 22 is annular, and it is divided by the mounting groove 221 to form a first annular boss 1012 and a second annular boss 1012. The first annular boss 1012 is provided on the outside of the protective cover 1, and the second annular boss 1012 is located inside the protective cavity 1a.

[0083] In some embodiments, the first annular boss 1012 and the second annular boss 1012 have the same height to facilitate manufacturing and ease of implementation.

[0084] In other embodiments, the height of the second annular protrusion 1012 is higher than that of the first annular protrusion 1012, but does not exceed the edge of the vent 121 near the top plate 101 (i.e., the lower edge 1211 of the vent 121 shown in the figure). Through this arrangement, the two annular protrusions 1012 form two barriers. Simultaneously, by designing the height of the second annular protrusion 1012 to be higher than that of the first annular protrusion 1012, the water accumulation height on the surface of the top plate 101 needs to be higher than the height of the second annular protrusion 1012 to pass over it, increasing the difficulty for rainwater to enter the protective cavity 1a, thereby further improving the protective effect of the protective structure. Furthermore, the height of the second annular protrusion 1012 not exceeding the edge of the vent 121 near the top plate 101 prevents the second annular protrusion 1012 from obstructing the airflow through the vent 121 and affecting the venting effect of the vent 121.

[0085] The airflow guiding component 3 includes louvers 31 and dustproof cotton 32. Louvers 31 are connected to the enclosure 12 and cover the exhaust vent 121. The dustproof cotton 32 is located on the side of the louvers 31 facing the protective cavity 1a. The louvers 31 effectively prevent external rainwater from directly entering the exhaust vent 121, thus protecting the components inside the protective cavity 1a from rain damage. Furthermore, the design of the louvers 31 reduces the direct impact of strong winds on the exhaust vent 121, preventing backflow of strong winds or the introduction of debris. The dustproof cotton 32 is installed inside the louvers 31, providing secondary filtration of the airflow entering the exhaust vent 121, preventing fine particles (such as dust and sand) from entering the protective cavity 1a, thereby reducing contamination of the components inside the protective cavity 1a and extending the service life of the energy storage system.

[0086] Based on the above embodiments, the protective structure has intersecting first direction Z and second direction X. The cover plate 11 and the top plate 101 are arranged opposite each other in the first direction Z. The louver 31 includes a plurality of blades 311 arranged along the first direction Z. The orthographic projections of each pair of adjacent blades 311 overlap in the first direction Z, and the overlapping portions of their orthographic projections have a gap 312 in the second direction X. The overlapping portions of the orthographic projections of each pair of adjacent blades 311 in the first direction Z form a barrier, which can effectively prevent rainwater, dust, etc. from directly entering the exhaust hole 121 through the gaps of the louver 31 along the first direction Z, thereby enhancing the protection of the protective cavity 1a. In addition, the overlapping portions of the orthographic projections of each pair of adjacent blades 311 in the first direction Z can also form a buffer zone for airflow, effectively reducing the possibility of strong external wind flowing back into the exhaust hole 121 through the louver 31, and maintaining the stability of the internal environment of the protective cavity 1a. The design of the gap 312 between each pair of adjacent blades 311 in the second direction X provides a flow path for airflow, reduces turbulence and disturbances, and improves the efficiency and stability of the airflow guiding assembly 3 during exhaust.

[0087] Each blade 311 includes an inclined plate 3111. The inclined plate 3111 has a first end 3111a and a second end 3111b disposed opposite each other in the first direction Z. The first end 3111a is closer to the cover plate 11 and closer to the dustproof cotton 32 than the second end 3111b. The design of the inclined plate 3111 makes the first end 3111a closer to the cover plate 11, forming a downward slope that guides rainwater to flow naturally along the surface of the blade 311 to the second end 3111b, thereby preventing rainwater from directly entering the protective cavity 1a. The inclined plate 3111 increases the difficulty for external dust or debris to enter the exhaust port 121. Especially in windy and sandy environments, the inclined plate 3111 allows debris to slide off under gravity and not enter the protective cavity 1a.

[0088] For example, the first end 3111a of the inclined plate 3111 is connected to a first plate, and the second end 3111b of the inclined plate 3111 is connected to a second plate. Both the first and second plates are L-shaped. The vertical section of the first plate is connected to the first end 3111a of the inclined plate 3111, and the horizontal section of the first plate extends away from the protective cavity 1a. The vertical section of the second plate is connected to the second end 3111b of the inclined plate 3111, and the horizontal section of the second plate extends towards the protective cavity 1a. Both the horizontal sections of the first and second plates are parallel to the cover plate 11. The vertical section of the second plate in the blade 311 furthest from the cover plate 11 among the plurality of blades 311 is connected to the surrounding plate 12. The vent 121 has a quadrilateral structure and a lower edge 1211 near the top plate 10110. The second end 3111b of the inclined plate 3111 of the blade 311 furthest from the cover plate 11 among the multiple blades 311 is at the same height as the lower edge 1211, or is set above the lower edge 1211. The surrounding plate 12 is connected to the second end 3111b of the inclined plate 3111 of the blade 311 furthest from the cover plate 11, so that rainwater on the surface of the inclined plate 3111 can flow out through the surrounding plate 12 along the lower edge 1211.

[0089] To prevent condensation on the surface of the cover 11 facing the protective cavity 1a, the protective structure also includes a first insulation plate 4, which is disposed on the surface of the cover 11 facing the protective cavity 1a. For example, in humid or cold environments, the cover 11 may condense due to direct contact with cold air. The first insulation plate 4 can insulate against temperature differences, prevent condensation, reduce moisture accumulation in the protective cavity 1a, and protect the components inside the enclosure 10 from moisture damage. The first insulation plate 4 can be installed on the inside of the cover 11 by bonding, embedding, or other methods, facilitating subsequent disassembly, replacement, or material upgrades. For example, the first insulation plate 4 is pressed against the inside of the cover 11 by a pressure plate.

[0090] Reference Figures 8-10 This application also provides an energy storage system. The energy storage system includes a housing 10, a battery module, and a protective structure as described in any of the above technical solutions. The protective structure has a first direction Z. An installation space is formed within the housing 10. The housing 10 includes a top plate 101 and a bottom plate 102, which are located on opposite sides of the installation space in the first direction Z. A vent 1011 is provided on the top plate 101, connecting the installation space and the outside of the housing 10. A protective cover 1 is provided on the outer periphery of the vent 1011. The top plate 101 and the cover 11 are arranged opposite each other in the first direction Z. The battery module is disposed within the installation space. The protective cover 1 in the protective structure is provided on the outer periphery of the vent 1011.

[0091] In this technical solution, a drainage section 2 is provided at one end of the enclosure 12 near the top plate 101 to allow rainwater to drain away from the protective cavity 1a. That is, the drainage section 2 guides rainwater away from the protective cavity 1a, effectively preventing rainwater from accumulating on the top plate 101 and entering the protective cavity 1a, then flowing into the installation space of the housing 10 through the vent 1011. This protects the battery modules inside the housing 10 from moisture damage and improves the protective or waterproof performance of the structure. Therefore, under severe weather conditions (such as heavy rainfall, water accumulation risk, humid environments, or environments with large temperature differences), the protective cover 1 reduces the amount of condensate entering the installation space of the housing 10 through the vent 1011. The drainage section 2 guides rainwater away from the protective cavity 1a, effectively preventing rainwater from entering the installation space of the housing 10 through the protective cavity 1a and the vent 1011, thus protecting the battery modules within the installation space and ensuring the long-term reliability of the energy storage system.

[0092] The protective structure also has a first direction Z, a second direction X, and a third direction Y that intersect in pairs. There are at least two enclosures 10, arranged along the second direction X and independent of each other. Each enclosure 10 has a vent 1011 on its top plate 101. There are at least two protective structures, with the protective cover 1 of each structure fastened to the outer periphery of the corresponding vent 1011. The enclosure 12 of each protective cover 1 includes a first side plate 122 and a second side plate 123 arranged opposite each other in the second direction X. The first side plate 122 faces the adjacent protective structure and has no perforated structure.

[0093] Therefore, the design of the first side panel 122 effectively prevents airflow crossing or interference between adjacent protective structures, ensuring that the ventilation effect of each exhaust port 121 is independent and efficient, preventing airflow from affecting each other, and maintaining smooth airflow within each enclosure 10. Furthermore, the above design helps reduce noise propagation, especially when multiple enclosures 10 are placed side-by-side, reducing noise interference between enclosures 10 and thus improving the system's quietness. In other words, the absence of a perforated structure in the first side panel 122 prevents external airflow from entering the exhaust ports 121 of adjacent protective structures, avoiding excessive airflow affecting airflow within the enclosure 10, and maintaining internal air stability and temperature control.

[0094] For example, the protective cover 1 of each protective structure includes a third side plate 124 and a fourth side plate 125 disposed opposite each other in the third direction Y. The third side plate 124 and the fourth side plate 125 are respectively connected to the two ends of the first side plate 122 and the second side plate 123 in the third direction Y. The first side plate 122, the second side plate 123, the third side plate 124 and the fourth side plate 125 together form a rectangular frame structure. The second side plate 123, the third side plate 124 and the fourth side plate 125 are all provided with exhaust holes 121, and the inner side of the second side plate 123, the third side plate 124 and the fourth side plate 125 are all provided with flow guiding components 3.

[0095] In some embodiments, the energy storage system includes an exhaust fan 20. A boss 1012 is provided on the side of the top plate 101 facing away from the bottom plate 102. The boss 1012 surrounds or encircles the outer periphery of the vent 1011, and the exhaust fan 20 is mounted on the boss 1012. The design of the boss 1012 surrounding the vent 1011 provides an additional barrier, acting as a baffle wall around the vent 1011, preventing dust, rainwater, or other debris from entering the interior of the housing 10 through the vent 1011. The boss 1012 provides a dedicated mounting platform for the exhaust fan 20, ensuring a more stable installation. Simultaneously, it effectively places the exhaust fan 20 outside the installation space of the housing 10, preventing it from occupying internal space and interfering with battery modules, wiring, or other devices within the housing 10.

[0096] Combination Figure 11 , Figure 12 and Figure 13 The exhaust fan 20 includes a mounting housing 201, an exhaust fan 202 and exhaust louvers 203 disposed within the mounting housing 201, with the exhaust louvers 203 being farther from the top plate 101 relative to the exhaust fan 202. A second insulation plate 30 is provided on the surface of the exhaust louvers 203 facing away from the top plate 101 and / or on the outer peripheral sidewall of the boss 1012. The exhaust louvers 203 and the boss 1012 are components easily exposed to the outside environment, and condensation can form due to the temperature difference between the inside and outside. The second insulation plate 30 effectively reduces the temperature difference between the component surfaces, minimizing condensation and preventing condensate from dripping or seeping into the interior of the housing 10, thus protecting the battery module or other components. Furthermore, the second insulation plate 30 not only provides insulation but also provides thermal insulation in high-temperature environments, preventing hot outside air from directly entering the interior of the housing 10 through the exhaust fan 20 or the vent 1011, thus protecting the battery module.

[0097] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0098] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims. Furthermore, specific examples have been used in the specification to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application, and the content of this specification should not be construed as a limitation of this application.

Claims

1. A protective structure, characterized in that, The protection structure is arranged outside the box body, and comprises a protection cover and a drainage part. The protection cover is buckled to the top plate of the box body. The protection cover comprises a cover plate and a surrounding plate. The cover plate and the top plate are oppositely arranged. The surrounding plate is connected between the cover plate and the top plate to jointly form a protection cavity. The drainage part is arranged at one end of the surrounding plate close to the top plate to discharge rainwater away from the protection cavity.

2. The containment structure of claim 1, wherein, The drainage part comprises a drainage plate. The drainage plate has opposite connecting end and extending end. The connecting end is connected to one side of the surrounding plate facing the top plate. The extending end extends to the outside of the protection cover.

3. The containment structure of claim 2, wherein, The surrounding plate and the drainage plate are in an integrated structure. The drainage plate is arranged in a bent manner relative to the surrounding plate.

4. A shield structure according to claim 2 or 3, characterised in that, The drainage plate has an outer end surface opposite to the top plate. The outer end surface is provided with a flow guide part for guiding rainwater to flow away from the protection cavity.

5. The containment structure of claim 4, wherein, The outer end surface is arranged in an inclined manner to form the flow guide part. From the connecting end to the extending end, the distance between the outer end surface and the top plate gradually decreases.

6. The containment structure of claim 4, wherein, The flow guide part comprises a flow guide groove recessed in the outer end surface. From the direction away from the protection cavity, the distance between the groove bottom of the flow guide groove and the top plate gradually decreases.

7. The containment structure of claim 6, wherein, The flow guide groove penetrates the end surface of the extending end of the drainage plate.

8. The containment structure of claim 1, wherein, The drainage part comprises a mounting seat. The mounting seat is sealingly connected to the top plate. The mounting seat is provided with a communicating mounting groove and a through part. The mounting groove is recessed in the end surface of the mounting seat opposite to the top plate. At least part of the surrounding plate close to the top plate is arranged in the mounting groove. The through part communicates the mounting groove and the outside of the protection cover.

9. The containment structure of claim 1, wherein, The protection structure further comprises a flow guide assembly. The surrounding plate is provided with an exhaust hole. The exhaust hole communicates the protection cavity and the outside of the protection cover. The flow guide assembly is connected to the surrounding plate and covers the exhaust hole.

10. The containment structure of claim 9, wherein, The flow guide assembly comprises a louver and dustproof cotton. The louver is connected to the surrounding plate and covers the exhaust hole. The dustproof cotton is arranged on the side of the louver facing the protection cavity.

11. The containment structure of claim 10, wherein, The protection structure has intersecting first and second directions. The cover plate and the top plate are oppositely arranged in the first direction. The louver comprises a plurality of blades arranged in the first direction. The projection of each adjacent two blades in the first direction partially overlaps. The projection overlapping part of the two blades in the second direction has a spacing.

12. The containment structure of claim 11, wherein, Each blade comprises an inclined plate having opposite first and second ends in the first direction. The first end is closer to the cover plate and the dustproof cotton than the second end.

13. The containment structure of claim 1, wherein, The protection structure further comprises a first heat preservation plate. The first heat preservation plate is arranged on the side surface of the cover plate facing the protection cavity.

14. An energy storage system characterized by, The protection structure has a first direction. The protection structure has a first direction. A box body is formed with an installation space, the box body includes a top plate and a bottom plate, the top plate and the bottom plate are respectively located on opposite sides of the installation space in the first direction, the top plate is provided with a ventilation hole, the ventilation hole communicates the installation space and the outside of the box body, the protective cover is arranged on the outer peripheral side of the ventilation hole, the top plate and the cover plate are arranged opposite in the first direction; A battery module is arranged in the installation space.

15. The energy storage system of claim 14, wherein: The protective structure has a second direction intersecting the first direction; The box body has at least two, at least two box bodies are arranged along the second direction, and the top plate of each box body is provided with the ventilation hole; The protective structure has at least two, and the protective cover of each protective structure is buckled on the outer peripheral side of the corresponding ventilation hole; The surrounding plate of the protective cover of each protective structure includes a first side plate and a second side plate arranged opposite in the second direction, the first side plate faces the adjacent protective structure, and the first side plate is not provided with an open structure.

16. The energy storage system of claim 14, wherein, The energy storage system includes: An exhaust fan; The top plate is provided with a boss on the side opposite to the bottom plate, the boss surrounds the outer periphery of the ventilation hole, and the exhaust fan is arranged on the boss.

17. The energy storage system of claim 16, wherein, The exhaust fan includes a mounting shell, an exhaust fan arranged in the mounting shell, and an exhaust louver, the exhaust louver is away from the top plate relative to the exhaust fan; The surface on the side opposite to the top plate of the exhaust louver and / or the outer peripheral side wall of the boss is provided with a second heat preservation plate.

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