Energy storage cabinet and diesel generator energy storage device

By designing louvers, filters, and seals in the energy storage cabinet, the problems of ventilation, heat dissipation, waterproofing, and dustproofing in the diesel generator energy storage device were solved, ensuring the long-term safe and stable operation of the device.

CN223978012UActive Publication Date: 2026-03-06SUNWODA ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In regions with relatively underdeveloped power grids, how can we ensure the ventilation, heat dissipation, waterproofing, and dustproofing of the energy storage cabinet in a power supply method that combines diesel generators with battery energy storage, so as to guarantee the long-term safe and stable operation of the diesel generator energy storage device?

Method used

An energy storage cabinet was designed, comprising a cabinet body, louvers, filters, and seals. Airflow exchange is achieved through the ventilation holes of the ventilation plate and the gaps between the louvers. Combined with the filters, external airflow is filtered, and the seals seal the joints, reducing the possibility of dust and moisture entering the cabinet body.

Benefits of technology

It achieves effective ventilation, heat dissipation, waterproofing, and dustproofing, ensuring the long-term safe and stable operation of the diesel-powered energy storage device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an energy storage cabinet and a diesel generator energy storage device, and relates to the technical field of batteries. The energy storage cabinet comprises a cabinet body with an accommodating cavity and an opening, and a shutter comprising a ventilation plate, shutters, a connecting piece, a filtering piece and a sealing piece. The ventilation plate is provided with a ventilation hole, the ventilation plate is connected with the cabinet body to seal the opening, the connecting piece is connected to the ventilation plate and located in the containing cavity, the filtering piece and the louver are connected to the connecting piece, the louver is located between the ventilation hole and the filtering piece and comprises a plurality of blades, and any two adjacent blades are arranged at intervals to form a gap communicated with the ventilation hole; and the sealing element is arranged along the circumferential direction of the ventilation plate and is connected between the ventilation plate and the cabinet body. According to the energy storage cabinet, the ventilation, heat dissipation, waterproof and dustproof functions are integrated through the shutters, and long-time safe and stable operation of the firewood generator energy storage device is guaranteed. The shutter, the filtering piece and the sealing piece are combined into a whole through the ventilation plate and the connecting piece, and the shutter can be conveniently and rapidly installed.
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Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to an energy storage cabinet and a diesel generator energy storage device. Background Technology

[0002] The information disclosed in this background section is intended only to enhance the understanding of the general background of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art.

[0003] In some regions with relatively underdeveloped power grids, diesel generators combined with battery energy storage have become the primary source of electricity for small businesses and households. Ensuring proper ventilation, heat dissipation, and waterproofing / dustproofing of the energy storage cabinet within a diesel generator-energy storage system is a crucial issue that needs to be addressed to guarantee the long-term safe and stable operation of such systems. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an energy storage cabinet and a diesel generator energy storage device, which aims to solve the technical problems of how to achieve ventilation and heat dissipation as well as waterproofing and dustproofing of the energy storage cabinet in the diesel generator energy storage device.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, embodiments of this application provide an energy storage cabinet, comprising:

[0007] The cabinet has a receiving cavity and an opening communicating with the receiving cavity;

[0008] A louver includes a ventilation panel, louvers, a connector, a filter, and a seal. The ventilation panel has ventilation holes and is connected to the cabinet to cover the openings. The connector is connected to the ventilation panel and located within the receiving cavity. The filter and the louvers are connected to the connector. The louvers are located between the ventilation holes and the filter and include multiple blades. Any two adjacent blades are spaced apart to form a gap, which communicates with the ventilation holes. The seal is arranged circumferentially along the ventilation panel and is connected between the ventilation panel and the cabinet.

[0009] In one embodiment of the first aspect, the energy storage cabinet further includes a threaded fastener and a nut, the nut being connected to the cabinet body and having a threaded hole that is not in communication with the receiving cavity, the threaded fastener passing through the ventilation plate, the seal and the threaded hole, and being threadedly connected to the nut.

[0010] In one embodiment of the first aspect, the connector is provided with a slot communicating with the receiving cavity, and the filter element is disposed through the slot to achieve a detachable connection between the filter element and the connector.

[0011] In one embodiment of the first aspect, the slot includes a first slot, a second slot, and a third slot, the third slot being connected between the first slot and the second slot, the first slot, the second slot, and the third slot forming a U-shape, and the edge of the filter element passing through the first slot, the second slot, and the third slot.

[0012] In one embodiment of the first aspect, the cabinet is provided with a limiting groove communicating with the opening, the limiting groove being annular, and at least a portion of the seal is received within the limiting groove.

[0013] In one embodiment of the first aspect, the seal is fully received within the limiting groove, and at least a portion of the ventilation plate is received within the limiting groove.

[0014] In one embodiment of the first aspect, each blade includes a first blade, a second blade, and a third blade, the thickness direction of the first blade and the thickness direction of the second blade being parallel, and the third blade being obliquely connected between the first blade and the second blade.

[0015] In one embodiment of the first aspect, the ventilation hole includes a plurality of first holes and a plurality of second holes, the first holes and the second holes being alternately arranged, and each second hole including two holes spaced apart.

[0016] In one embodiment of the first aspect, each of the blades is welded to the connector; and / or, the connector is welded to the ventilation plate.

[0017] Secondly, embodiments of this application provide a diesel generator energy storage device, including the energy storage cabinet described in any of the embodiments of the first aspect above.

[0018] The beneficial effects of this application are as follows:

[0019] In the energy storage cabinet provided in this application, airflow exchange occurs between the cabinet's containment cavity and the external environment through ventilation holes in the ventilation plate and the gaps formed between any two adjacent louvers, thereby achieving ventilation and heat dissipation. Furthermore, the inclusion of filters filters the airflow flowing between the containment cavity and the external environment, reducing the possibility of dust and moisture from the external environment entering the containment cavity during ventilation and heat dissipation. Simultaneously, sealing elements seal the connection between the ventilation plate and the cabinet, further reducing the possibility of dust and moisture entering the containment cavity. This ensures the long-term safe and stable operation of the diesel generator energy storage device.

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This paper shows a schematic diagram of the energy storage cabinet from one perspective in one embodiment of the present application;

[0023] Figure 2 An exploded view of the energy storage cabinet in one embodiment of this application is shown;

[0024] Figure 3 It shows Figure 2 Enlarged structural diagram of region A in the middle;

[0025] Figure 4 This invention provides a schematic diagram of the structure of a venetian blind from one perspective in one embodiment of the present application.

[0026] Figure 5 It shows Figure 4 A schematic diagram of the decomposed structure;

[0027] Figure 6 This invention provides a schematic diagram of the structure of a venetian blind from another perspective in one embodiment of the present application.

[0028] Figure 7 It shows Figure 6 A schematic diagram of the decomposed structure;

[0029] Figure 8 A schematic diagram of the louver structure from one perspective is shown in one embodiment of this application.

[0030] Explanation of key component symbols:

[0031] 1000-Energy storage cabinet; 100-Cabinet body; 110-Receiving cavity; 120-Opening; 130-Limiting groove; 200-Louvre; 210-Ventilation plate; 2101-Ventilation hole; 211-First hole; 212-Second hole; 2121-Hole body; 220-Louvre; 221-Blade; 2211-First piece; 2212-Second piece; 2213-Third piece; 222-Gap; 230-Connector; 2301-Slot; 231-First slot; 232-Second slot; 233-Third slot; 240-Filter element; 250-Sealing element; 300-Threaded fastener; 400-Nut; 410-Threaded hole. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.

[0034] Furthermore, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this application, the terms "first," "second," etc., are used to distinguish different objects and should not be construed as indicating or implying a specific order or hierarchy, or implicitly specifying the number of technical features indicated. Therefore, a feature marked "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0036] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In the description of this application, the term "and / or" indicates that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0038] In the description of this application, "parallel" includes not only the case of absolute parallelism, but also the case of approximate parallelism as commonly understood in engineering; similarly, "perpendicular" also includes not only the case of absolute perpendicularity, but also the case of approximate perpendicularity as commonly understood in engineering. For example, if the angle between two directions is 80° to 90°, the two directions can be considered perpendicular; if the angle between two directions is 0° to 10°, the two directions can be considered parallel.

[0039] Currently, in some regions with relatively underdeveloped power grids, diesel generators combined with battery energy storage have become the primary means of power supply for small businesses and households. This is especially true in regions like Asia, Africa, and Latin America, where living environments are relatively harsh, requiring diesel generator-to-energy storage devices to have the capability for long-term safe and stable operation. How to achieve proper ventilation, heat dissipation, waterproofing, and dustproofing of the energy storage cabinet within a diesel generator-to-energy storage device is a pressing issue that needs to be addressed to ensure its long-term safe and stable operation.

[0040] To solve the above technical problems, such as Figure 1 and Figure 2 As shown, in the first aspect, embodiments of this application provide an energy storage cabinet 1000, which relates to the field of battery technology and is mainly applied to diesel generator energy storage devices. Of course, it can also be applied to energy storage containers, energy storage power stations, etc., and no specific limitations are made here.

[0041] Combination Figure 4 , Figure 6 and Figure 8 As shown, the energy storage cabinet 1000 provided in this embodiment includes: cabinet body 100 and louvers 200.

[0042] The cabinet 100 has a receiving cavity 110 and an opening 120 communicating with the receiving cavity 110. The louver 200 includes a ventilation plate 210, louvers 220, a connector 230, a filter 240, and a sealing element 250. The ventilation plate 210 has ventilation holes 2101 and is connected to the cabinet 100 to cover the opening 120. The connector 230 is connected to the ventilation plate 210 and is located in the receiving cavity. Inside 110, filter element 240 and louver 220 are connected to connector 230. Louver 220 is located between ventilation hole 2101 and filter element 240. Louver 220 includes multiple blades 221. Any two adjacent blades 221 are spaced apart to form a gap 222. The gap 222 communicates with ventilation hole 2101. Sealing element 250 is arranged along the circumference of ventilation plate 210. Sealing element 250 is connected between ventilation plate 210 and cabinet 100.

[0043] It should be noted that the cabinet 100, through the receiving cavity 110, can accommodate energy storage batteries and supporting electrical components. Energy storage batteries include battery packs, battery modules, and individual battery cells, while electrical components include distribution boxes, controllers, and combiner boxes. Since both energy storage batteries and electrical components generate heat during operation, ventilation and heat dissipation are required. The phrase "the sealing element 250 is arranged circumferentially along the ventilation plate 210" can be understood as the sealing element 250 being arranged in a ring shape.

[0044] For example, the filter element 240 can be selected from filter cotton, filter screen, centrifuge, etc., and the seal 250 can be sealing silicone, sealing rubber, sealing cotton, etc. No specific restrictions are made on the types of filter element 240 and seal 250 here.

[0045] It is understood that in the energy storage cabinet 1000 provided in this embodiment, the receiving cavity 110 of the cabinet 100 and the external environment exchange airflow through the ventilation holes 2101 of the ventilation plate 210 and the gap 222 formed between any two adjacent blades 221 of the louvers 220, thereby achieving ventilation and heat dissipation. Furthermore, the filter element 240 filters the airflow flowing between the receiving cavity 110 and the external environment, reducing the possibility of dust and moisture from the external environment entering the receiving cavity 110 during ventilation and heat dissipation. Simultaneously, the sealing element 250 seals the connection between the ventilation plate 210 and the cabinet 100, further reducing the possibility of dust and moisture entering the receiving cavity 110. Thus, the long-term safe and stable operation of the diesel generator energy storage device is ensured.

[0046] In addition, the louver 200 integrates the louver 220, filter element 240 and sealing element 250 into a whole through the ventilation plate 210 and connector 230, which facilitates the quick installation of the louver 200.

[0047] like Figure 2 and Figure 3 As shown, in one embodiment, the energy storage cabinet 1000 further includes a threaded fastener 300 and a nut 400. The nut 400 is connected to the cabinet body 100 and has a threaded hole 410. The threaded hole 410 is not connected to the receiving cavity 110. The threaded fastener 300 passes through the ventilation plate 210, the seal 250 and the threaded hole 410, and is threadedly connected to the nut 400.

[0048] For example, the threaded fastener 300 can be selected from components with threads such as screws, bolts, and screws, without specific limitations.

[0049] It is understandable that since the threaded fastener 300 passes through the ventilation plate 210, the seal 250 and the threaded hole 410 and is threadedly connected to the nut 400, and the threaded hole 410 is not connected to the receiving cavity 110, that is, the threaded hole 410 is a blind hole, this can effectively reduce the possibility of moisture and dust in the external environment entering the receiving cavity 110 through the threaded hole 410 during ventilation and heat dissipation.

[0050] It should be noted that the nut 400 can be a closed-type press-fit nut that is riveted to the cabinet 100. The threaded hole of the closed-type press-fit nut is a blind hole and does not communicate with the receiving cavity 110, which can reduce the possibility of moisture and dust entering the receiving cavity 110. Of course, the nut 400 can also be a welded nut that is welded to the cabinet 100. By opening a threaded hole on the welded nut that does not penetrate the welded nut, the threaded hole is not connected to the receiving cavity 110, which can also reduce the possibility of moisture and dust entering the receiving cavity 110. No specific restrictions are made on the structure of the nut 400 here.

[0051] Furthermore, the use of threaded fasteners 300 and nuts 400 enables a detachable connection between the louver 200 and the cabinet 100, facilitating maintenance of the louver 200. The threaded fasteners 300 are inserted into the seal 250, allowing for better compression of the seal 250 when tightened with tools, ensuring it adheres tightly to the cabinet 100 and the ventilation panel 210, thus achieving a better sealing effect.

[0052] Of course, in addition to the above-mentioned threaded connection, the louver 200 can also be connected to the cabinet 100 by snap-fit, welding, quick-release parts, etc. Among them, snap-fit ​​and quick-release parts are detachable connections, and no specific restrictions are placed on the connection method between the louver 200 and the cabinet 100.

[0053] like Figure 2 and Figure 6 As shown, in one embodiment, the connector 230 is provided with a slot 2301 communicating with the receiving cavity 110, and the filter 240 is disposed in the slot 2301 to realize the detachable connection between the filter 240 and the connector 230.

[0054] It is understandable that, since the connector 230 is provided with a slot 2301 that communicates with the receiving cavity 110, the filter element 240 is disposed in the slot 2301, thus realizing a detachable connection between the filter element 240 and the connector 230, which makes it easier for users to replace the filter element 240.

[0055] like Figure 6 and Figure 7 As shown, the slot 2301 further includes a first slot 231, a second slot 232, and a third slot 233. The third slot 233 connects between the first slot 231 and the second slot 232. The first slot 231, the second slot 232, and the third slot 233 form a U-shape, and the edge of the filter element 240 passes through the first slot 231, the second slot 232, and the third slot 233. This design makes the slot 2301 U-shaped, which not only enables a detachable connection between the filter element 240 and the connector 230 for easy replacement of the filter element 240, but also prevents the connector 230 from obstructing the filter element 240 and affecting its filtering function.

[0056] In another embodiment, the filter element 240 and the connector 230 are snapped together or connected by a quick-release mechanism, which also enables a detachable connection between the two. No specific restrictions are placed on the way the filter element 240 and the connector 230 are connected.

[0057] like Figures 2 to 4 As shown, in one embodiment, the cabinet 100 is provided with a limiting groove 130 communicating with the opening 120. The limiting groove 130 is arranged in a ring shape, and at least a portion of the seal 250 is received in the limiting groove 130.

[0058] It should be noted that "at least a portion of the seal 250 is received within the limiting groove 130" can be understood to include the following two situations: First, a portion of the seal 250 is received within the limiting groove 130, that is, the seal 250 is not completely received within the limiting groove 130; Second, the seal 250 is completely received within the limiting groove 130. "The limiting groove 130 is arranged in a ring shape" can be understood as the limiting groove 130 being arranged along the circumference of the ventilation plate 210.

[0059] Understandably, by housing at least a portion of the seal 250 within the limiting groove 130, the movement of the seal 250 relative to the ventilation plate 210 and the cabinet 100 is restricted by the support of the groove wall of the limiting groove 130, thereby improving the stability of the seal 250 and enhancing the sealing effect of the seal 250 at the connection between the ventilation plate 210 and the cabinet 100.

[0060] In addition, the setting of the limiting groove 130 makes the surface of the cabinet 100 stepped, which increases the difficulty for dust and moisture from the external environment to enter the receiving cavity 110.

[0061] Furthermore, the seal 250 is completely housed within the limiting groove 130, and at least a portion of the ventilation plate 210 is also housed within the limiting groove 130. In this way, the limiting groove 130 not only restricts the movement of the seal 250 but also restricts the movement of the ventilation plate 210 relative to the cabinet 100, improving the sealing effect of the seal 250 caused by the movement of the ventilation plate 210, thereby further enhancing the sealing effect of the seal 250 at the connection between the ventilation plate 210 and the cabinet 100.

[0062] like Figure 8 As shown, in one embodiment, each blade 221 includes a first blade 2211, a second blade 2212, and a third blade 2213. The thickness direction of the first blade 2211 is parallel to the thickness direction of the second blade 2212, and the third blade 2213 is obliquely connected between the first blade 2211 and the second blade 2212. This design of the shape of each blade 221 allows the louvers 220 to better combine the dual effects of dust and water protection with ventilation and heat dissipation, thereby ensuring the long-term safe and stable operation of the diesel-powered energy storage device.

[0063] like Figure 4 and Figure 5 As shown, in one embodiment, the ventilation hole 2101 includes a plurality of first holes 211 and a plurality of second holes 212, with the first holes 211 and second holes 212 alternately arranged. Each second hole 212 includes two holes 2121 spaced apart. This design allows the ventilation plate 210 to have the dual effect of preventing large objects from entering and providing ventilation and heat dissipation, ensuring the long-term safe and stable operation of the diesel-powered energy storage device.

[0064] In one embodiment, each blade 221 is welded to a connector 230; and / or, the connector 230 is welded to a ventilation panel 210.

[0065] Understandably, by welding each blade 221 to the connector 230, the stability of the blade 221 can be effectively enhanced, reducing the risk of the blade 221 falling off; by welding the connector 230 to the ventilation plate 210, the connector 230 and the ventilation plate 210 form a whole, with higher structural stability. This extends the service life of the louver 200.

[0066] Secondly, embodiments of this application provide a diesel generator energy storage device, including a diesel generator, an energy storage battery, and an energy storage cabinet 1000 as described in any of the embodiments of the first aspect above. The energy storage battery is disposed in the receiving cavity 110 of the energy storage cabinet 1000, and the diesel generator is electrically connected to the energy storage battery.

[0067] Understandably, the electrical energy generated by the diesel generator is stored in an energy storage battery, which then powers the load. For example, the energy storage battery can be one of a battery pack, a battery module, or a battery cell. The battery pack includes a housing and multiple battery modules housed within the housing. Each battery module includes a support frame and multiple battery cells arranged on the support frame. Adjacent battery cells are electrically connected via a busbar to achieve series or parallel connection.

[0068] It should be understood that, since the diesel generator energy storage device provided in this embodiment has the energy storage cabinet 1000 in any of the embodiments of the first aspect, it has all the beneficial effects of the energy storage cabinet 1000, which will not be described in detail here.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An energy storage cabinet, characterized by, The energy storage cabinet comprises a cabinet body (100) having a receiving cavity (110) and provided with an opening (120) communicating with the receiving cavity (110); and a shutter (200) comprising a ventilation plate (210), a shutter (220), a connecting piece (230), a filter piece (240) and a sealing piece (250), the ventilation plate (210) is provided with a ventilation hole (2101), the ventilation plate (210) is connected to the cabinet body (100) to cover the opening (120), the connecting piece (230) is connected to the ventilation plate (210) and located in the receiving cavity (110), the filter piece (240) and the shutter (220) are connected to the connecting piece (230), the shutter (220) is located between the ventilation hole (2101) and the filter piece (240) and comprises a plurality of blades (221), any two adjacent blades (221) are spaced apart to form a gap (222), the gap (222) communicates with the ventilation hole (2101), and the sealing piece (250) is arranged along the circumference of the ventilation plate (210) and connected between the ventilation plate (210) and the cabinet body (100). The energy storage cabinet further comprises a threaded fastener (300) and a nut (400), the nut (400) is connected to the cabinet body (100) and has a threaded hole (410) not communicating with the receiving cavity (110), and the threaded fastener (300) is arranged through the ventilation plate (210), the sealing piece (250) and the threaded hole (410) and is threadedly connected with the nut (400). The connecting piece (230) is provided with a slot (2301) communicating with the receiving cavity (110), and the filter piece (240) is arranged through the slot (2301) to achieve detachable connection between the filter piece (240) and the connecting piece (230).

2. The energy storage cabinet of claim 1, wherein, The slot (2301) comprises a first slot portion (231), a second slot portion (232) and a third slot portion (233), the third slot portion (233) communicates between the first slot portion (231) and the second slot portion (232), the first slot portion (231), the second slot portion (232) and the third slot portion (233) are enclosed to form a U-shaped structure, and the edge of the filter piece (240) is arranged through the first slot portion (231), the second slot portion (232) and the third slot portion (233).

3. The energy storage cabinet of claim 1, wherein, The cabinet body (100) is provided with a limiting groove (130) communicating with the opening (120), the limiting groove (130) is arranged in a ring shape, and at least part of the sealing piece (250) is accommodated in the limiting groove (130).

4. The energy storage cabinet of claim 3, wherein, The sealing piece (250) is completely accommodated in the limiting groove (130), and at least part of the ventilation plate (210) is accommodated in the limiting groove (130).

5. The energy storage cabinet of claim 1, wherein, ​ 6. The energy storage cabinet of claim 5, wherein, ​ 7. The energy storage cabinet of any one of claims 1 to 6, wherein, Each of the blades (221) comprises a first piece (2211), a second piece (2212) and a third piece (2213), a thickness direction of the first piece (2211) is parallel to a thickness direction of the second piece (2212), and the third piece (2213) is connected between the first piece (2211) and the second piece (2212) in an inclined manner.

8. The energy storage cabinet of any one of claims 1 to 6, wherein, The vent hole (2101) comprises a plurality of first hole portions (211) and a plurality of second hole portions (212), the first hole portions (211) and the second hole portions (212) are arranged alternately, and each of the second hole portions (212) comprises two hole bodies (2121) arranged in a spaced manner.

9. The energy storage cabinet of any one of claims 1 to 6, wherein, Each of the blades (221) is welded with the connecting piece (230); and / or, the connecting piece (230) is welded with the vent plate (210).

10. A wood gas energy storage device, characterized by, The energy storage cabinet comprises the energy storage cabinet according to any one of claims 1 to 9.