Energy storage device

Abstract

The utility model discloses energy storage equipment, relates to the technical field of energy storage equipment, and is used for solving the problem of low maintenance efficiency of a protective cover. The energy storage equipment provided by the utility model comprises a cabinet body, and the cabinet body is provided with a mounting space and an air inlet communicating with the mounting space; the wind and sand prevention assembly is connected with the cabinet body to cover the air inlet, the wind and sand prevention assembly comprises a protective cover covering the periphery of the air inlet, the protective cover is provided with a leading-in hole and a discharging part, the leading-in hole is communicated with the air inlet, and the discharging part is used for communicating the interior of the protective cover with the exterior of the protective cover. Sand dust entering the protective cover can be quickly discharged out of the protective cover through the discharging part.

Description

Energy storage devices Technical Field

[0001] This application relates to the technical field of energy storage devices, specifically to an energy storage device. Background Technology

[0002] With the development of the energy storage industry, batteries have gradually taken the lead in the field due to their significant advantages such as high energy density, long lifespan, and small size. Energy storage equipment typically houses battery clusters within its cabinet, which has channels connecting it to the internal space to allow airflow and heat dissipation from the battery clusters.

[0003] However, in actual use, some sand and dust still enter the interior of the protective cover. When maintaining it, the protective cover needs to be disassembled and the sand and dust inside the protective cover needs to be cleaned, resulting in low maintenance efficiency of the protective cover. Summary of the Invention

[0004] This application provides an energy storage device that can solve the problem of low maintenance efficiency of protective covers.

[0005] To achieve the above objectives, the energy storage device provided in this application includes:

[0006] The cabinet has an installation space and an air inlet that connects to the installation space;

[0007] A sand-proof component is connected to the cabinet to cover the air inlet. The sand-proof component includes a protective cover that covers the outer periphery of the air inlet. The protective cover is provided with an inlet hole and an outlet. The inlet hole is connected to the air inlet, and the outlet is used to connect the inside of the protective cover with the outside of the protective cover.

[0008] In some embodiments of this application, the wind and sand protection component further includes a filter element, the protective cover is connected to the surface of the cabinet opposite to the installation space, the filter element is disposed inside the protective cover and located between the inlet hole and the air inlet, and the discharge part is located on the side of the filter element opposite to the inlet hole.

[0009] In some embodiments of this application, the cabinet has a first orientation;

[0010] The cabinet includes a top, a bottom, and side panels. The top and bottom are located on opposite sides of the installation space in the first direction, and the side panels connect the top and bottom.

[0011] The protective cover includes a sealing plate and an end cap. The end cap is disposed opposite to the side plate. The sealing plate is connected between the end cap and the side plate. The sealing plate includes a bottom sealing plate near the bottom, an inlet hole is disposed on the end cap, and a discharge part is disposed on the bottom sealing plate.

[0012] In some embodiments of this application, the bottom sealing plate is inclined towards the bottom in the direction from the end cap to the side plate; and,

[0013] The discharge section is a discharge hole that penetrates the bottom sealing plate along the first direction, and the discharge hole passes through the end of the bottom sealing plate near the side plate.

[0014] In some embodiments of this application, the wind and sand protection component further includes:

[0015] A limiting bracket is installed inside the protective cover to fix the filter element inside the protective cover. The end of the limiting bracket near the bottom is provided with a perforated hole that communicates with the discharge section.

[0016] In some embodiments of this application, the cabinet has a first orientation;

[0017] The cabinet includes a top and a bottom located on both sides of the installation space in the first direction, with an exhaust vent connected to the installation space at the top;

[0018] The energy storage device also includes a louver assembly, which includes:

[0019] The housing covers the outer periphery of the exhaust vent and is connected to the top. The housing has a ventilation opening that communicates with the exhaust vent.

[0020] Self-closing louvers connect to the housing and cover the vents.

[0021] In some embodiments of this application, the housing includes a top cover and a surrounding plate, wherein in a first direction, the surrounding plate is connected between the top cover and the top to enclose and form a flow guide cavity, and the louver assembly further includes:

[0022] The air guide, connected to the housing and located inside the air guide cavity, is used to guide the airflow entering the air guide cavity through the exhaust port to the ventilation port.

[0023] In some embodiments of this application, the cabinet has a second direction, and the second direction intersects the first direction in pairs;

[0024] The enclosure includes a first side and a second side arranged opposite each other in a second direction, and ventilation openings are provided on both the first side and the second side;

[0025] A flow guide is disposed inside the flow guide cavity to divide the flow guide cavity into a first sub-cavity and a second sub-cavity along the second direction. The vent on the first side is connected to the first sub-cavity, and the vent on the second side is connected to the second sub-cavity.

[0026] In some embodiments of this application, the flow guide includes a partition sub-plate and two flow guide sub-plates, both of which are connected between the partition sub-plate and the top cover, and the spacing between the two flow guide sub-plates gradually increases in the second direction.

[0027] In some embodiments of this application, the distance between the first side and the second side gradually increases in the second direction from the top cover to the top.

[0028] The above-mentioned technical solution of this application has at least the following beneficial effects:

[0029] The exhaust system effectively removes sand and dust that enters the protective enclosure, further reducing the likelihood of sand and dust entering the cabinet. The exhaust system also serves as a channel for cleaning sand and dust from inside the enclosure. Maintenance personnel can periodically clean the enclosure through the exhaust system to remove accumulated sand and dust, reducing maintenance workload and improving maintenance efficiency. Attached Figure Description

[0030] 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.

[0031] Figure 1 is a perspective view of the energy storage device in an embodiment of this application;

[0032] Figure 2 is an exploded view of the energy storage device in an embodiment of this application;

[0033] Figure 3 is a perspective view of the wind and sand protection component in the energy storage device in the embodiment of this application;

[0034] Figure 4 is a front view of the wind and sand protection component in the energy storage device in an embodiment of this application;

[0035] Figure 5 is a cross-sectional view of section AA in Figure 4;

[0036] Figure 6 is a cross-sectional view of section BB in Figure 4;

[0037] Figure 7 is an enlarged view of section C in Figure 6;

[0038] Figure 8 is a perspective view of the louver assembly in the energy storage device in an embodiment of this application;

[0039] Figure 9 is a perspective view of the self-closing louvers in the energy storage device in an embodiment of this application;

[0040] Figure 10 is a cross-sectional view of the louver assembly in the energy storage device in an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1-Cabinet body; 11-Top; 111-Exhaust vent; 12-Bottom; 13-Side panel; 131-Air inlet; 132-First panel; 133-Second panel; 134-Third panel; 14-Installation space;

[0043] 2-Windproof and sandproof component; 21-Protective cover; 211-Inlet hole; 212-Discharge section; 213-Sealing plate; 2131-Bottom sealing plate; 2132-Top sealing plate; 214-End cap; 22-Filter element; 23-Limiting bracket; 231-First bracket; 2311-Perforated hole; 232-Second bracket; 24-Pad plate;

[0044] 3-Louvre assembly; 31-Housing; 311-Ventilation opening; 312-Top cover; 313-Enclosure panel; 3131-First side; 3132-Second side; 314-Guide cavity; 3141-First sub-cavity; 3142-Second sub-cavity; 32-Self-closing louver; 321-Blade; 322-Spindle; 323-Linkage assembly; 324-Frame; 33-Guide element; 331-Divider sub-plate; 332-Guide sub-plate; 34-Grate;

[0045] Z - First direction; Y - Second direction; X - Third direction. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] This application provides an energy storage device, 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.

[0051] With the development of the energy storage industry, batteries have gradually taken the lead in the field due to their significant advantages such as high energy density, long lifespan, and small size. Energy storage equipment typically houses battery clusters within its cabinet, which has channels connecting it to the internal space to allow airflow and heat dissipation from the battery clusters.

[0052] However, in actual use, some sand and dust still enter the interior of the protective cover. When maintaining it, the protective cover needs to be disassembled and the sand and dust inside the protective cover needs to be cleaned, resulting in low maintenance efficiency of the protective cover.

[0053] Specifically, dust inside the protective shield may enter the cabinet with the airflow when the airflow velocity is high, accumulating on the surface of the liquid cooling unit and battery clusters, forming a dust layer. This hinders heat dissipation from the liquid cooling unit and battery clusters, reducing the heat dissipation efficiency of the energy storage equipment. Especially in areas severely affected by dust storms, the liquid cooling unit and battery clusters require frequent maintenance, which undoubtedly increases the customer's operating costs and provides a poor customer experience.

[0054] Therefore, this application provides an energy storage device including a cabinet and a sand-proof component. The cabinet has an installation space and an air inlet communicating with the installation space. The sand-proof component is connected to the cabinet to cover the air inlet. The sand-proof component includes a protective cover surrounding the air inlet, the protective cover having an inlet hole and an outlet, the inlet hole communicating with the air inlet, and the outlet for communicating between the interior and exterior of the protective cover.

[0055] In this technical solution, the exhaust section can promptly remove sand and dust that enters the protective cover, further reducing the possibility of sand and dust entering the cabinet. The exhaust section also serves as a channel for cleaning sand and dust inside the protective cover. Maintenance personnel can periodically clean the protective cover through the exhaust section to promptly remove accumulated sand and dust, reducing maintenance workload and improving maintenance efficiency. Simultaneously, it ensures the cleanliness of the windproof cover's interior, preventing the accumulation of large amounts of sand and dust, thus avoiding sand and dust from entering the cabinet and depositing on the surface of the battery clusters, which is beneficial for improving the heat dissipation effect of the energy storage system. In other words, compared to a system without an exhaust section, designing an exhaust section makes it easier for maintenance personnel to clean and maintain the protective cover, reducing maintenance costs and difficulty.

[0056] The energy storage device provided in this application will be described in detail below with reference to the accompanying drawings. Referring to Figures 1 and 2, the energy storage device includes a cabinet 1, a wind and sand protection component 2, and a louvered component 3. The cabinet 1 has a first direction Z, a second direction Y, and a third direction X that intersect each other in pairs.

[0057] The cabinet 1 includes a top 11 and a bottom 12 arranged opposite each other in a first direction Z, and a side panel 13 connecting the top 11 and the bottom 12. The side panel 13, the top 11, and the bottom 12 together enclose and define an installation space 14. An exhaust vent 111 communicating with the installation space 14 is provided on the top 11, and an air inlet 131 communicating with the installation space 14 is provided on the side panel 13. For example, the top 11 is a frame structure, including multiple intersecting connecting beams, with the intervals between adjacent connecting beams forming the exhaust vent 111. Furthermore, the air inlet 131 is closer to the bottom 12 than the top 11. By rationally designing the air inlet 131 and the exhaust vent 111, an air convection channel can be formed within the cabinet 1, allowing hot air inside the cabinet 1 to be discharged promptly while introducing cool external air. This effectively reduces the temperature inside the cabinet 1, ensuring that the energy storage device operates within a suitable temperature range, guaranteeing its stable performance and normal operation. Cabinet 1 typically houses structures such as liquid cooling units and battery clusters.

[0058] The windproof sandproof component 2 is installed on the outside of the cabinet 1 and is connected to the side panel 13 to cover the air inlet 131. The windproof sandproof component 2, connected to the side panel 13 and covering the air inlet 131, can effectively block external wind and sand from entering the installation space 14, which helps to maintain the cleanliness of the installation space 14 and reduce the impact of dust, sand and other impurities on other components (such as liquid cooling units) in the energy storage equipment.

[0059] The louver assembly 3 is installed on the outside of the cabinet 1 and connected to the top 11 to cover the exhaust vent 111. The louver assembly 3 covers the exhaust vent 111, which can ensure air circulation between the inside of the cabinet 1 and the outside, meet the heat dissipation requirements of the energy storage equipment, and also play a certain protective role, preventing foreign objects (such as leaves, dust, etc.) from entering the installation space 14 from the exhaust vent 111.

[0060] Therefore, by setting up the windproof sandproof component 2 and the louver component 3, this application can, to a certain extent, prevent wind and sand from entering the installation space 14 of the cabinet 1, prevent sand and soil from accumulating on the surface of the liquid cooling unit and battery cluster inside the cabinet 1, ensure that the liquid cooling unit and battery cluster can dissipate heat normally, and improve the heat dissipation efficiency of the energy storage equipment.

[0061] Referring to Figures 2 and 3, the wind and sand protection component 2 includes a protective cover 21 and a filter element 22 (see Figure 5 for reference). The protective cover 21 covers the outer periphery of the air inlet 131 and is connected to the surface of the side plate 13 facing away from the installation space 14. The protective cover 21 has an inlet hole 211 that communicates with the air inlet 131. The filter element 22 is disposed inside the protective cover 21 and is located between the inlet hole 211 and the air inlet 131. The protective cover 21 acts as an additional protective barrier, preventing most wind, sand, dust, leaves, branches, and other debris from directly entering the air inlet 131. The inlet hole 211 communicates with the air inlet 131, without obstructing normal airflow, and can guide the air entering the cabinet 1. At the same time, the protective cover 21 provides a relatively closed and safe installation environment for the filter element 22, preventing external wind, sand, and debris from directly impacting the filter element 22 and reducing wear and damage to the filter element 22. This can extend the service life of filter element 22, reduce the frequency of filter element 22 replacement, and reduce maintenance costs.

[0062] Furthermore, the filter element 22, located between the inlet hole 211 and the air inlet 131, can further filter and intercept these fine particles. For example, for relatively small dust particles, the filter element 22 can effectively prevent them from entering the interior of the cabinet 1, thereby further improving the wind and sand protection effect of the windproof and sandproof assembly 2 and providing more refined protection for the energy storage device. For example, the filter element 22 can be a metal wire mesh, glass fiber filter cotton, porous ceramic filter material, nanofiber filter material, etc.

[0063] In practical applications, the filter element 22 can block most sand and dust from entering the cabinet 1. However, during actual operation, a small amount of sand and dust may still accumulate inside the protective cover 21 due to airflow disturbances or other reasons, through the gaps in the filter element 22. The discharge section 212 is located on the side of the filter element 22 opposite to the inlet hole 211 and is used to connect the inside and outside of the protective cover 21. This allows the sand and dust that enters the protective cover 21 to be discharged to the outside of the protective cover 21 in a timely manner, further reducing the possibility of sand and dust entering the cabinet 1. The discharge section 212 can also serve as a channel for cleaning sand and dust inside the protective cover 21. Regularly or irregularly cleaning the inside of the protective cover 21 through the discharge section 212 can remove accumulated sand and dust in a timely manner, reducing the maintenance workload of the protective cover 21 and the filter element 22. Compared to the case without the discharge section 212, this design makes it easier for maintenance personnel to clean and maintain the protective cover 21, reducing maintenance costs and difficulties. The protective cover 21 is connected to the side plate 13 by screws. The inner side of the side plate 13 is provided with a pad 24 to prevent the screws from directly contacting the inner surface of the side plate 13 and damaging the side plate 13.

[0064] Referring to Figures 1, 3, and 4, the protective cover 21 includes a sealing plate 213 and an end cap 214. The end cap 214 is disposed opposite to the side plate 13, and the sealing plate 213 connects the end cap 214 and the side plate 13. The sealing plate 213 includes a bottom sealing plate 2131 near the bottom 12, an inlet hole 211 is provided on the end cap 214, and an outlet 212 is provided on the bottom sealing plate 2131. For example, the sealing plate 213 also includes a top sealing plate 2132 near the top 11. That is, the end cap 214 is disposed opposite to the side plate 13, and the sealing plate 213 connects the end cap 214 and the side plate 13 to form a relatively enclosed space, enclosing the air inlet 131 inside the protective cover 21. The inlet hole 211 is located on the end cover 214 and is opposite to the air inlet 131, so that air enters the protective cover 21 from the direction of the end cover 214 and flows directly to the air inlet 131, avoiding the formation of turbulent airflow in the protective cover 21, which helps to improve the air circulation efficiency and allows the air to pass through the filter element 22 more smoothly into the cabinet 1, providing good ventilation and heat dissipation conditions for the energy storage equipment.

[0065] Meanwhile, by placing the discharge section 212 on the bottom sealing plate 2131, the sand and dust entering the protective cover 21 can be drawn towards the bottom 12 by gravity and then discharged through the discharge section 212. This prevents sand and dust from accumulating inside the protective cover 21 and being carried back into the cabinet 1 by the airflow, effectively preventing sand and dust backflow and ensuring the cleanliness of the inside of the cabinet 1.

[0066] In some embodiments, the discharge section 212 is a discharge hole that penetrates the bottom sealing plate 2131 along the first direction Z. Specifically, there are multiple inlet holes 211, all of which are opened on the end cap 214, so that the air entering the protective cover 21 is more evenly distributed. When air enters the protective cover 21 from the outside, the multiple inlet holes can make the air form a relatively uniform airflow field inside the protective cover 21. This helps to improve the contact effect between the air and the filter element 22, allowing the filter element 22 to better perform its filtering function and ensuring a higher cleanliness of the air entering the cabinet 1. In addition, the design of multiple inlet holes 211 can improve the protective performance of the protective cover 21 to a certain extent. For example, when impurities such as sand and dust attempt to enter the protective cover 21, multiple smaller inlet holes are less likely to allow impurities to pass directly compared to a single large opening. Even if some impurities enter the inlet holes, they will be intercepted by the filter element 22, thereby reducing the possibility of impurities entering the cabinet 1 and better protecting the energy storage device. In this embodiment, the shape and size of the inlet holes can be reasonably designed to make the incoming cold air more evenly distributed inside the cabinet 1.

[0067] The discharge section 212 is a discharge hole that penetrates the bottom sealing plate 2131 along the first direction Z. The discharge hole is located on the bottom sealing plate 2131, making it easier for sand and dust to be discharged from the outside of the protective cover 21 under the action of gravity. This more effectively removes sand and dust entering the protective cover 21, reducing the accumulation of sand and dust inside the protective cover 21 and minimizing its impact on the internal structure of the protective cover 21 and the filter element 22. In other embodiments, the discharge section 212 can be a dust removal channel, which can be a pipe extending from the inside of the protective cover 21 to the outside of the bottom sealing plate 2131. The dust removal channel can precisely guide the discharge direction of the sand and dust, causing it to be discharged from the outside of the protective cover 21 along a predetermined path.

[0068] Furthermore, from the end cap 214 to the side plate 13, the bottom sealing plate 2131 is inclined towards the bottom 12. The discharge hole penetrates the end of the bottom sealing plate 2131 near the side plate 13. In this manner, due to the inclination of the bottom sealing plate 2131, sand and dust will naturally slide down the inclined surface to a position near the side plate 13 and near the bottom 12, where the discharge hole is located. Moreover, the discharge hole penetrates the end of the bottom sealing plate 2131 near the side plate 13, preventing the end of the bottom sealing plate 2131 near the side plate 13 from being a closed structure, which would cause sand and dust to accumulate in a dead corner at the bottom 12 of the protective cover 21. This improves the efficiency of sand and dust being discharged from the protective cover 21 through the discharge hole, effectively preventing sand and dust from accumulating inside the protective cover 21.

[0069] Inside the protective cover 21, airflow may exert a certain impact force on the filter element 22, especially in environments with strong winds and sand, where the impact force may be even stronger. Therefore, referring to Figures 4-6, the sand-proof assembly 2 provided in this application also includes a limiting bracket 23, which is disposed inside the protective cover 21 to fix the filter element 22 within the protective cover 21. The limiting bracket 23 can firmly fix the filter element 22 at a specific position inside the protective cover 21, preventing it from shifting or shaking due to airflow impact. This ensures that the filter element 22 is always in the optimal working position, guaranteeing its filtration effect on sand and other impurities, and effectively preventing impurities from entering the cabinet 1. For example, the limiting bracket 23 can be connected to the protective cover 21 via a detachable connection (screw fixing).

[0070] In other embodiments, a slot matching the shape and size of the filter element 22 is provided on the inner wall of the protective cover 21. The slot can be an annular slot along the circumference of the inner wall of the protective cover 21, or it can be multiple independent slots distributed at specific locations within the protective cover 21. The edge portion of the filter element 22 is designed with a locking edge or protrusion structure that mates with the slot. When the filter element 22 is installed, its edge is aligned with the slot, and then it is gently pressed or inserted to make the locking edge or protrusion engage in the slot, thereby fixing the filter element 22 within the protective cover 21.

[0071] Please refer to Figures 6 and 7. The limiting bracket 23 has a perforated hole 2311 at one end near the bottom 12, which communicates with the discharge section 212. When sand and dust inside the protective cover 21 move towards the bottom 12 under the influence of airflow or gravity, they can quickly enter the discharge section 212 through the perforated hole 2311 and be discharged outside the protective cover 21. In other words, the perforated hole 2311 communicates with the discharge section 212, providing a direct and smooth discharge channel for sand and dust, effectively preventing sand and dust accumulation inside the protective cover 21 and maintaining a clean environment inside the protective cover 21.

[0072] For example, the limiting bracket 23 includes a first bracket 231 and a second bracket 232 arranged opposite each other along the first direction Z. Both the first bracket 231 and the second bracket 232 are connected to the protective cover 21, and the filter element 22 is disposed between the first bracket 231 and the second bracket 232. The first bracket 231 and the second bracket 232 can fix and support the filter element 22 from the first direction Z, effectively preventing the filter element 22 from shifting, shaking, or deforming. The first bracket 231 is closer to the bottom 12 than the second bracket 232, and a perforated hole 2311 is provided on the first bracket 231.

[0073] Referring to Figures 1 and 8, the louver assembly 3 includes a housing 31 and self-closing louvers 32. The housing 31 covers the outer periphery of the exhaust vent 111, and a ventilation opening 311 is provided on the housing 31. The self-closing louvers 32 are connected to the housing 31 and cover the ventilation opening 311. When there is a pressure difference or airflow inside and outside the cabinet 1, the self-closing louvers 32 will automatically open or adjust their angle under the action of airflow, thereby allowing air to exchange between the inside and outside of the cabinet 1 through the ventilation opening 311. At the same time, the self-closing louvers 32, connected to the housing 31 and covering the ventilation opening 311, form the first protective barrier. When there are foreign objects such as dust, sand, leaves, and branches in the external environment, the self-closing louvers 32 can prevent these foreign objects from directly entering the ventilation opening 311, thus preventing them from entering the interior of the cabinet 1.

[0074] In other words, under different environmental conditions, such as high or low wind speeds, the self-closing louvers 32 can adaptively change their opening angle, thereby flexibly adjusting the ventilation volume of the vent 311. This adaptive adjustment function does not require additional control devices and can flexibly adjust the ventilation volume according to actual ventilation needs. For example, when the wind speed is high, the self-closing louvers 32 will close at some angles to prevent excessive air from rushing into the cabinet 1 quickly and avoiding impact on the energy storage equipment; while when the wind speed is low, the self-closing louvers 32 will open at a larger angle to ensure sufficient ventilation volume to meet the heat dissipation needs of the energy storage equipment.

[0075] As shown in Figure 9, a self-closing louver 32 typically includes blades 321, a pivot 322, a linkage assembly 323, and a frame 324. Multiple blades 321 are typically made of metal (such as aluminum alloy) or plastic. Each blade 321 is connected to the frame 324 via the pivot 322, which allows the blade 321 to rotate around it, thus achieving the opening and closing action. The frame 324 is used to mount the louver blades 321 and the pivot 322, ensuring the stability of the overall structure. The linkage assembly 323 connects multiple blades 321. When one blade 321 is subjected to an external force (such as wind force, manual operation force, etc.) and rotates, the linkage assembly 323 can transmit this motion to other connected blades 321, enabling multiple blades 321 to open and close synchronously.

[0076] It is understandable that air has the characteristic of rising when heated. When the air inlet 131 is relatively close to the bottom 12 of the cabinet 1, the cool air enters the installation space 14 from the bottom 12 of the cabinet 1 and will naturally sink under the influence of gravity, flowing along the surface of the equipment and gradually absorbing the heat generated by the equipment. As the air temperature rises, the hot air will naturally rise and eventually be discharged from the exhaust vent 111 at the top 11. This bottom-up air convection method allows the air inside the cabinet 1 to flow more evenly, avoiding the problem of uneven heat dissipation caused by local air stagnation, and improving the overall heat dissipation effect inside the cabinet 1.

[0077] Please refer to Figure 2. The louver assembly 3 described above in this application also includes a grille 34. The grille 34 is disposed inside the housing 31 and is used to cover the exhaust vent 111 to block foreign objects from the outside, such as leaves and twigs, so as to prevent these foreign objects from entering the housing 31 through the exhaust vent 111 and to protect the equipment inside the housing 31 (such as ventilation equipment, electrical equipment, etc.) from damage by foreign objects.

[0078] Referring to Figures 8 and 10, the housing 31 has a flow guiding cavity 314. The louver assembly 3 also includes a flow guiding element 33, which is connected to the housing 31 and located within the flow guiding cavity 314. The flow guiding element 33 is used to guide the airflow entering the flow guiding cavity 314 through the exhaust port 111 to the ventilation port 311. The design of the flow guiding element 33 optimizes the airflow channel, reduces the flow resistance of the airflow within the flow guiding cavity 314, and allows the airflow to pass through the flow guiding cavity 314 more smoothly and flow to the ventilation port 311. This avoids energy loss caused by airflow turbulence or collision, improves ventilation efficiency, and thus more effectively dissipates heat from the energy storage equipment inside the cabinet 1. In addition, the flow guiding element 33, connected to the housing 31 and located within the flow guiding cavity 314, can provide support and reinforcement to a certain extent, enhancing the structural stability of the housing 31.

[0079] The housing 31 includes a top cover 312 and a surrounding plate 313. The surrounding plate 313 connects the top cover 312 and the top 11, and surrounds the outer periphery of the exhaust port 111 (see Figure 2 for reference). The surrounding plate 313 includes a first side portion 3131 and a second side portion 3132 arranged opposite each other in the second direction Y. Ventilation ports 311 are provided on both the first side portion 3131 and the second side portion 3132. A flow guide 33 is disposed in the flow guide cavity 314 to divide the flow guide cavity 314 into two independent sub-cavities 3141 and 3142 along the second direction Y. The ventilation ports 311 on the first side portion 3131 communicate with the first sub-cavity 3141, and the ventilation ports 311 on the second side portion 3132 communicate with the second sub-cavity 3142.

[0080] By employing the above method, the airflow entering the guide cavity 314 can be more evenly distributed to the first sub-cavity 3141 and the second sub-cavity 3142, avoiding the problem of uneven ventilation caused by airflow concentration on one side. This makes the airflow path within the first sub-cavity 3141 and the second sub-cavity 3142 clearer and more stable, reducing mutual interference and turbulence between airflows. This reduces airflow resistance, improves ventilation efficiency, allows hot air inside the cabinet 1 to be expelled more quickly, and allows fresh air to enter more rapidly, providing better heat dissipation conditions for the energy storage device.

[0081] The flow guide 33 includes a partition plate 331 and two flow guide plates 332. Both flow guide plates 332 are connected between the partition plate 331 and the top cover 312. The spacing between the two flow guide plates 332 gradually increases in the second direction Y, so that the volume of the first sub-cavity 3141 and the second sub-cavity 3142 decreases as they approach the top cover 312. In other words, the cross-sectional shape of the flow guide 33 is approximately "Y". The airflow entering the flow guide cavity 314 is clearly divided into two parts by the partition plate 331, flowing to the first sub-cavity 3141 and the second sub-cavity 3142 respectively. The flow guide plates 332 further guide the airflow towards the corresponding vents 311, ensuring that the airflow flows orderly according to the designed path, improving the accuracy and efficiency of ventilation. Specifically, when the airflow flows in the gradually smaller sub-cavities (first sub-cavity 3141 and second sub-cavity 3142), the changes in airflow speed and pressure are more stable, thereby reducing the collision and friction between the airflow and the cavity walls and reducing noise generation.

[0082] In some embodiments of this application, the housing 31 includes a top cover 312 and a surrounding panel 313. The surrounding panel 313 connects the top cover 312 and the top 11, and surrounds the outer periphery of the exhaust vent 111. The surrounding panel 313 includes a first side portion 3131 and a second side portion 3132 disposed opposite each other in a second direction Y. At least one of the first side portion 3131 and the second side portion 3132 has a ventilation opening 311. Opening a ventilation opening 311 on the top cover 312 may allow more dust, leaves, and other foreign objects to enter the interior of the cabinet 1 more easily, and the top cover 312 can provide some protection for the exhaust vent 111. However, placing the ventilation opening 311 on the surrounding panel 313 allows the structure of the surrounding panel 313 to provide some obstruction for foreign objects. Furthermore, when airflow is blown out from the ventilation opening 311 of the surrounding panel 313, it can create a wider flow path within the cabinet 1, covering a larger area, thereby improving the uniformity of ventilation. This helps ensure that all parts of the energy storage equipment inside cabinet 1 are adequately cooled.

[0083] In this design, from the top cover 312 to the top 11, the distance between the first side portion 3131 and the second side portion 3132 gradually increases in the second direction Y. That is, the first side portion 3131 and the second side portion 3132 are inclined relative to the first direction Z. This design increases the total area of ​​the vent 311, thereby improving ventilation efficiency. Furthermore, the inclined first side portion 3131 and the second side portion 3132 allow some dust to slide down the inclined surface under gravity, reducing the possibility of dust entering the cabinet 1 through the vent 311. For example, the first side portion 3131 and the second side portion 3132 are symmetrically distributed relative to the guide member 33.

[0084] In some embodiments of this application, referring to Figures 1 and 2, the side panel 13 includes a first plate 132 and a second plate 133 arranged opposite each other along a third direction X. An air inlet 131 is disposed on the first plate 132. A sand-proof component 2 is connected to the first plate 132. The first plate 132 forms a cabinet door, which is used to close or open the installation space 14, thereby facilitating maintenance and repair of the air inlet 131 and the sand-proof component 2. When it is necessary to clean the air inlet 131 or replace the sand-proof component 2, simply opening the cabinet door allows direct access to the relevant components without complex disassembly. Of course, the side panel 13 also includes a third plate 134 and a fourth plate (not shown in the figures) arranged opposite each other along a second direction Y, connected between the first plate 132 and the second plate 133.

[0085] In actual energy storage equipment installation and maintenance scenarios, the space on the side of cabinet 1 may be insufficient. Its space planning is often limited by many factors, such as the compactness of the cabinet 1 structure itself, the layout of other surrounding equipment, and the overall site planning. As a result, the available space in this area is relatively limited, often making it difficult to meet the needs of maintenance personnel for on-site standing maintenance. On the other hand, the space in front of the cabinet door is usually relatively large. This area is designed so that the space around it will not be occupied by other equipment or structures when the cabinet door needs to be opened or closed. This provides maintenance personnel with ample standing and operating space, making it easier to use various maintenance tools and equipment, and to more efficiently clean or replace the windproof and sandproof components 2.

[0086] 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.

[0087] 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. An energy storage device, characterized in that, include: A cabinet having an installation space and an air inlet communicating with the installation space; a windproof and sandproof assembly connected to the cabinet to cover the air inlet, the windproof and sandproof assembly including a protective cover covering the outer periphery of the air inlet, the protective cover having an inlet hole and an outlet, the inlet hole communicating with the air inlet, and the outlet for communicating between the interior and exterior of the protective cover.

2. The energy storage device according to claim 1, characterized in that, The wind and sand protection component also includes a filter element. The protective cover is connected to the surface of the cabinet facing away from the installation space. The filter element is disposed inside the protective cover and located between the inlet hole and the air inlet. The discharge part is located on the side of the filter element facing away from the inlet hole.

3. The energy storage device according to claim 2, characterized in that, The cabinet has a first direction; the cabinet includes a top, a bottom, and side panels, the top and the bottom being located on opposite sides of the installation space in the first direction, and the side panels being connected between the top and the bottom; the protective cover includes a sealing plate and an end cap, the end cap being disposed opposite to the side panels, the sealing plate being connected between the end cap and the side panels, the sealing plate including a bottom sealing plate near the bottom, the inlet hole being disposed on the end cap, and the discharge portion being disposed on the bottom sealing plate.

4. The energy storage device according to claim 3, characterized in that, From the end cap to the side plate, the bottom sealing plate is inclined toward the bottom; and the discharge portion is a discharge hole that passes through the bottom sealing plate along the first direction, and the discharge hole passes through one end of the bottom sealing plate near the side plate.

5. The energy storage device according to claim 3, characterized in that, The wind and sand protection component further includes a limiting bracket, which is disposed inside the protective cover to fix the filter element inside the protective cover. The limiting bracket has a perforated hole communicating with the discharge section at one end near the bottom.

6. The energy storage device according to claim 1, characterized in that, The cabinet has a first direction; the cabinet includes a top and a bottom located on both sides of the installation space in the first direction, and the top has an exhaust vent communicating with the installation space; the energy storage device also includes a louver assembly, the louver assembly including: a housing, which covers the outer periphery of the exhaust vent and is connected to the top, and the housing has a ventilation opening communicating with the exhaust vent; and self-closing louvers, which are connected to the housing and cover the ventilation opening.

7. The energy storage device according to claim 6, characterized in that, The housing includes a top cover and a surrounding panel. In the first direction, the surrounding panel is connected between the top cover and the top to enclose and form a flow guide cavity. The louver assembly further includes a flow guide member connected to the housing and located within the flow guide cavity. The flow guide member is used to guide the airflow entering the flow guide cavity through the exhaust port to the ventilation port.

8. The energy storage device according to claim 7, characterized in that, The cabinet has a second direction, which intersects the first direction with each other; the enclosure includes a first side and a second side disposed opposite to each other in the second direction, and the ventilation openings are provided on both the first side and the second side; the flow guide is disposed in the flow guide cavity to divide the flow guide cavity into a first sub-cavity and a second sub-cavity along the second direction, the ventilation opening on the first side communicates with the first sub-cavity, and the ventilation opening on the second side communicates with the second sub-cavity.

9. The energy storage device according to claim 8, characterized in that, The flow guide includes a partition plate and two flow guide plates, both of which are connected between the partition plate and the top cover, and the spacing between the two flow guide plates gradually increases in the second direction.

10. The energy storage device according to claim 9, characterized in that, The distance between the first side and the second side gradually increases in the second direction from the top cover to the top.

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