Energy storage containers and energy storage systems

Abstract

This application relates to an energy storage container and an energy storage system. The energy storage container includes: a container body with an opening on one side; a door panel rotatably connected to the container body, used to open or close the opening, forming a gap space between the door panel and the container body; and a sealing assembly including an inner sealing strip and an outer sealing strip, the inner sealing strip being connected to the container body and surrounding the opening, and the outer sealing strip being connected to the door panel; the door panel forms an interference fit with the inner sealing strip when the opening is closed, and the outer sealing strip forms an interference fit with the container body when the door panel is closed, thereby sealing the gap space. In this energy storage container, the inner and outer sealing strips respectively seal the inner and outer sides of the door panel when the opening is closed, effectively improving the sealing performance between the door panel and the container body, reducing the probability of ambient moisture and air entering the container body, improving the overall water tightness and air tightness of the energy storage container, and thus improving the operational reliability and stability of the energy storage container and the corresponding energy storage system.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage container and an energy storage system. Background Technology

[0002] With the rise of the new energy industry, energy storage containers have broad application prospects in large ships, photovoltaic industry, and communication base station energy storage, playing an important role in the promotion and application of clean energy. For the new energy industry, energy storage technology is a crucial factor in its development.

[0003] In related technologies, most energy storage containers in energy storage systems have an open structure. Electrical components on the energy storage containers (such as energy storage batteries) are easily exposed to ambient air. When thermal runaway occurs, they are prone to fire or even explosion, which greatly affects the operational reliability and stability of the energy storage containers and the energy storage system. Summary of the Invention

[0004] This application aims to at least address the problem that the poor watertightness and airtightness of current energy storage containers affect the operational reliability and stability of energy storage containers and energy storage systems. To this end, this application provides an energy storage container and an energy storage system.

[0005] In a first aspect, this application provides an energy storage container, comprising:

[0006] The box has an opening on one side;

[0007] A door panel is rotatably connected to the box body, and the door panel is used to open or close the opening, forming a gap space between the door panel and the box body;

[0008] A sealing assembly includes an inner sealing strip and an outer sealing strip, the inner sealing strip being connected to the housing and surrounding the opening, and the outer sealing strip being connected to the door panel;

[0009] When the door panel closes the opening, it forms an interference fit with the inner sealing strip, and the outer sealing strip forms an interference fit with the housing when the door panel closes the opening, so as to seal the gap space.

[0010] The energy storage container according to the first aspect of this application has at least the following beneficial effects:

[0011] The energy storage container of this application, by setting an inner sealing strip around the opening of the container body, and making the door panel form an interference fit with the inner sealing strip when the opening is closed, seals the gap between the opening and the inner side of the door panel, thus maintaining a relative seal between the container body and the inner side of the door panel; by setting an outer sealing strip on the door panel, and having the outer sealing strip be jointly constrained by the container body and the door panel in the gap space between the container body and the door panel when the door panel is closed, the outer sealing strip seals the gap space, thus maintaining a relative seal between the container body and the outer side of the door panel. In this way, the inner sealing strip and the outer sealing strip seal the inner side and the outer side of the door panel respectively when the door panel is closed, so that the inner side of the door panel and the container body, as well as the outer side of the door panel and the container body, are all relatively sealed, effectively improving the airtightness between the door panel and the container body, reducing the probability of environmental moisture and air entering the container body, improving the overall water tightness and air tightness of the energy storage container, and thus improving the operational reliability and stability of the energy storage container and the corresponding energy storage system.

[0012] In some embodiments, the inner edge of the door panel forms a first corner portion that bends toward the outer side of the door panel, and the inner sealing strip is configured to deform along the contour of the first corner portion under the resistance of the first corner portion to fit the first corner portion.

[0013] This design allows the inner sealing strip to conform to the turning deformation of the first corner, ensuring that the deformed part of the inner sealing strip fits tightly against the inner edge of the door panel. This completely covers the inner edge area of ​​the door panel with the deformed part of the inner sealing strip, thereby completely sealing the gap between the inner side of the door panel and the cabinet, eliminating dead corners, and improving the sealing effect of the inner sealing strip on the inner side of the door panel.

[0014] In some embodiments, the outer edge of the door panel forms a second corner portion that bends toward the inner side of the door panel, and the outer sealing strip is connected to the side wall of the door panel and fits against the second corner portion.

[0015] This design allows the outer sealing strip at the outer edge of the door panel to conform to the turning deformation of the second corner, ensuring that the outer edge area of ​​the door panel is completely covered by the deformed part of the outer sealing strip. This completely seals the gap between the outer side of the door panel and the outer sealing strip, eliminating dead angles in the sealing between the outer side of the door panel and the outer sealing strip, and improving the sealing effect of the outer sealing strip on the outer side of the door panel.

[0016] In some embodiments, the outer sealing strip includes a first fitting portion and a second fitting portion, the second fitting portion being connected to one end of the first fitting portion near the outer side of the door panel and bent relative to the first fitting portion, the first fitting portion fitting to the edge of the door panel, and the second fitting portion fitting to the second corner portion.

[0017] This design ensures that the outer edge of the door panel is completely covered by the first and second bonding parts of the outer sealing strip, thereby sealing the gap between the outer side of the door panel and the outer sealing strip, eliminating the sealing dead angle between the outer side of the door panel and the outer sealing strip, and improving the sealing effect of the outer sealing strip on the outer side of the door panel.

[0018] In some embodiments, the outer sealing strip further includes a deformable portion located within the gap space and connected to one end of the first fitting portion near the inner side of the door panel, and the deformable portion bends toward the housing relative to the first fitting portion to abut against the housing when the door panel closes the opening.

[0019] With this configuration, the deformable part is squeezed and deformed under the constraint of the door panel, the first fitting part, and the box body, so that the deformable part is tightly pressed against the box body, and the deformable part directly seals the gap space, thereby sealing the gap between the box body and the outer sealing strip and improving the sealing effect of the outer sealing strip on the gap space.

[0020] In some embodiments, the deformable portion is configured as an arcuate structure that bends outward toward the door panel.

[0021] With this design, as the door panel moves the deformable part into the gap space, the curved deformable part can slide along the corresponding side wall of the box and be guided into the gap space, reducing the probability that the deformable part will be interfered with by the corresponding side wall of the box and have difficulty entering the gap space.

[0022] In some embodiments, the outer sealing strip further includes an overlap portion located outside the gap space and connected to one end of the first fitting portion away from the inner side of the door panel, and the overlap portion is bent toward the housing relative to the first fitting portion to abut against the housing when the door panel closes the opening.

[0023] This design reduces the probability of external moisture entering the gap between the outer wall of the box and the outer sealing strip by sealing the overlap, thus reducing the likelihood of oxidation and corrosion of the deformable part.

[0024] In some embodiments, the distance between the two ends of the deformable portion is greater than the width of the gap space and less than the distance between the two ends of the overlapping portion.

[0025] This design ensures that when the deformable part is within the gap space, its two ends can stably abut against the edge of the door panel and the corresponding side wall of the housing, maintaining a stable seal over the gap space. At the same time, it prevents the overlapping part from entering the gap space and allows it to abut against the outer wall of the housing. This isolates the deformable part from the external environment, reducing the probability of moisture entering the gap space and corroding the deformable part, and improving the sealing effect of the outer sealing strip on the gap space.

[0026] In some embodiments, the energy storage container further includes a locking mechanism for locking or releasing the door panel to the container body, and the locking mechanism is configured to provide a clamping force to the door panel to press against the inner and outer sealing strips.

[0027] This design ensures that the inner and outer sealing strips are pressed together when the door panel is closed, improving the sealing effect between the door panel and the cabinet.

[0028] In some embodiments, the energy storage container further includes:

[0029] An energy storage unit is disposed in the receiving cavity of the housing;

[0030] A fire protection system, the fire protection system including a fire circulation pipeline disposed within the receiving cavity and at least one exhaust component disposed on the fire circulation pipeline, the fire circulation pipeline being spaced around the energy storage unit;

[0031] The fire-fighting circulation pipeline is used to circulate the flame-retardant medium, and the exhaust component is used to discharge the flame-retardant medium into the receiving cavity.

[0032] This design allows the flame-retardant medium to circulate within the containment cavity, venting oxygen from the cavity to the container. Simultaneously, it fills the containment cavity with the flame-retardant medium, creating an oxygen-free environment within the container. This reduces the probability of combustion and explosion when the energy storage unit experiences thermal runaway, thereby improving the operational reliability and stability of the energy storage container.

[0033] In some embodiments, the fire circulation pipeline includes a main fire pipeline and a plurality of fire branch pipelines connected to the main fire pipeline. All the fire branch pipelines are distributed at intervals along the length of the receiving cavity, and an energy storage area is formed between two adjacent fire branch pipelines. At least one energy storage unit is disposed in the energy storage area.

[0034] With this configuration, the exhaust system discharges the flame-retardant medium from the corresponding fire branch to the energy storage unit in the corresponding energy storage area. This ensures that the flame-retardant medium is evenly distributed in each energy storage area, and also ensures that the exterior of each energy storage unit is filled with flame-retardant medium. When the energy storage unit experiences thermal runaway, the flame-retardant medium filling the exterior of the energy storage unit can suppress the combustion and ignition of the energy storage unit, thereby reducing the probability of combustion and explosion when the energy storage unit experiences thermal runaway and improving the operational reliability and stability of the energy storage container.

[0035] In some embodiments, the fire branch includes a plurality of fire branch pipes spaced apart along the width direction of the receiving cavity, all of which are connected, the fire branch pipes extend along the height direction of the receiving cavity, and the fire branch pipes are provided with a plurality of exhaust components spaced apart along the height direction.

[0036] This configuration surrounds each energy storage zone with multiple fire-fighting pipes. The exhaust pipes on these pipes discharge flame-retardant media to the corresponding energy storage units within the zone, ensuring that each unit is fully enveloped in flame-retardant media. In the event of thermal runaway, the flame-retardant media surrounding the unit can suppress combustion and ignition, reducing the probability of combustion and explosion and improving the operational reliability and stability of the energy storage container.

[0037] In some embodiments, the energy storage area includes multiple energy storage zones distributed along the height direction, each energy storage zone having at least one energy storage unit, and the exhaust pipe on the fire-fighting branch pipe being located on top of the energy storage unit corresponding to the energy storage zone.

[0038] This design allows the flame-retardant medium to flow from the top to the bottom of the energy storage unit, effectively suppressing the combustion state of the energy storage unit and thus reducing the probability of combustion and explosion, thereby improving the operational reliability and stability of the energy storage container.

[0039] In some embodiments, the exhaust member has at least three exhaust ports, and any two of the exhaust ports on the exhaust member have different orientations.

[0040] This configuration allows for corresponding exhaust ports on the outside of the energy storage unit in different directions. All exhaust ports distributed on the outside of the energy storage unit can spray flame-retardant media onto various parts of the energy storage unit, making the flame-retardant media more evenly distributed on various parts of the energy storage unit. This further reduces the probability of the energy storage unit burning and exploding, and improves the operational reliability and stability of the energy storage container.

[0041] In some embodiments, the energy storage container further includes a pipeline interface assembly disposed on the outer wall of the container. The pipeline interface assembly includes a storage box and a connecting pipe. One end of the connecting pipe is sealed through the storage box and extends into the interior of the container. The other end of the connecting pipe is located inside the storage box. The end of the connecting pipe inside the container is provided with an inner pipe interface, and the end of the connecting pipe inside the storage box is provided with an outer pipe interface.

[0042] With this design, the storage box on the pipe interface assembly facilitates the connection and arrangement of the connecting pipes, and the connecting pipes facilitate the connection between the pipes inside the box and the pipes outside the box without affecting the sealing performance of the box.

[0043] In some embodiments, the energy storage container further includes an electrical connection assembly disposed on the outer wall of the container. The electrical connection assembly includes an electrical connector that is sealed through the outer wall of the container, such that the two ends of the electrical connector are respectively located inside the container and outside the container.

[0044] This configuration ensures a relative seal between the electrical connector and the container, while simultaneously connecting the two energy storage containers in series via the electrical connector, simplifying the circuit layout on the energy storage containers.

[0045] In some embodiments, the electrical connection assembly further includes a first insulating member embedded in the outer wall of the housing, the first insulating member having a through hole communicating with the interior of the housing, the electrical connection member passing through the through hole and being interference-fitted with the first insulating member.

[0046] This configuration ensures a relative seal between the electrical connector and the first insulating component, as well as between the electrical connector and the container, and a relative insulation between the electrical connector and the outer wall of the container. This improves the overall airtightness and watertightness of the container, and correspondingly enhances the overall operational stability and reliability of the energy storage container.

[0047] In some embodiments, a sealing ring is provided between the first insulating element and the housing.

[0048] With this configuration, the sealing ring can seal the gap between the first insulating component and the container, further improving the water tightness and air tightness of the container, and correspondingly improving the overall operational stability and reliability of the energy storage container.

[0049] Secondly, this application provides an energy storage system, which includes the energy storage container described above.

[0050] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0051] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0052] Figure 1 This is a structural schematic diagram of an energy storage container according to an embodiment of this application.

[0053] Figure 2 This is a partial structural diagram of the energy storage container according to an embodiment of this application. Figure 1 .

[0054] Figure 3 for Figure 2 The corresponding structural decomposition diagram.

[0055] Figure 4 for Figure 2 The corresponding main view of the structure.

[0056] Figure 5 for Figure 4 Structural sectional view at point AA.

[0057] Figure 6 for Figure 5 A magnified view of a section at point B.

[0058] Figure 7 This is a partial structural diagram of the outer sealing strip in an embodiment of this application.

[0059] Figure 8 This is a schematic diagram of the structure behind the hidden door panel of the energy storage container according to an embodiment of this application.

[0060] Figure 9 This is a partial structural diagram of the fire-fighting circulation pipeline according to an embodiment of this application.

[0061] Figure 10 for Figure 9 A magnified view of a section at point C.

[0062] Figure 11 This is a partial structural diagram of the energy storage container according to an embodiment of this application. Figure 2 .

[0063] Figure 12 This is a schematic diagram of the structure of the pipeline interface component according to an embodiment of this application.

[0064] Figure 13 This is a schematic diagram of the combined structure of two energy storage containers according to an embodiment of this application.

[0065] Figure 14 for Figure 13 A magnified view of a section at point D.

[0066] Figure 15 This is a schematic diagram of the structure of the electrical connection assembly according to an embodiment of this application.

[0067] Figure 16 This is an exploded view of the electrical connection assembly according to an embodiment of this application.

[0068] Figure 17 This is a schematic diagram of the energy storage system according to an embodiment of this application.

[0069] Explanation of reference numerals in the attached drawings: Box body 100; Opening 110; Gap space 120; Receiving cavity 130; Door panel 200; First corner portion 210; Second corner portion 220; Step stop portion 230; Sealing assembly 300; Inner sealing strip 310; Outer sealing strip 320; First fitting portion 321; Second fitting portion 322; Deformable portion 323; Overlap portion 324; Locking mechanism 400; Lock handle 410; Rotating rod 420; Lock hook 430; First lock seat 440; Second lock seat 450; Energy storage unit 500; Pipeline interface assembly 6 00; Storage box 610; Connecting pipe 620; Inner pipe interface 621; Outer pipe interface 622; Electrical connection assembly 700; Electrical connector 710; First connecting piece 711; Second connecting piece 712; First insulating component 720; Through hole 721; Sealing ring 730; Insulator 800; Fire protection system 20; Fire circulation pipeline 21; Fire main line 211; Fire branch line 212; Fire branch pipe 2121; Exhaust component 22; Exhaust port 221; Energy storage area R; Energy storage zone R1; Length direction X; Width direction Y; Height direction Z. Detailed Implementation

[0070] 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.

[0071] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0072] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0074] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "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 that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0076] With the rise of the new energy industry, energy storage containers have broad application prospects in large ships, photovoltaic industry, and communication base station energy storage, playing an important role in the promotion and application of clean energy. For the new energy industry, energy storage technology is a crucial factor in its development.

[0077] When energy storage containers are installed outdoors, various factors such as weather, environment, and temperature changes need to be considered, which places high demands on the sealing performance of the energy storage cabinets.

[0078] In related technologies, most energy storage containers in energy storage systems have an open structure. Electrical components (such as energy storage batteries) on these containers are easily exposed to ambient air, which can lead to fires or even explosions in the event of thermal runaway, significantly impacting the reliability and stability of the energy storage container and the entire system. The few non-open energy storage containers also have poor sealing between the container body and doors, allowing ambient moisture and air to easily enter and contact the electrical components, similarly affecting the reliability and stability of the container and the system.

[0079] Based on this, and addressing the problem of poor watertightness and airtightness of current energy storage containers, which affects the operational reliability and stability of energy storage containers and energy storage systems, one or more embodiments of this application provide an energy storage container. By providing an inner sealing strip around the opening of the container body, and ensuring an interference fit between the door panel and the inner sealing strip when the opening is closed, the gap between the opening and the inner side of the door panel is sealed, thus maintaining a relative seal between the container body and the inner side of the door panel. Furthermore, by providing an outer sealing strip on the door panel, and ensuring that the outer sealing strip is constrained by both the container body and the door panel in the gap space between them when the door panel is closed, the outer sealing strip seals the gap space, maintaining a relative seal between the container body and the outer side of the door panel. Thus, the inner and outer sealing strips respectively seal the inner and outer sides of the door panel when the door panel is closed, ensuring a relative seal between the inner and outer sides of the door panel and the container body, effectively improving the airtightness between the door panel and the container body, reducing the probability of environmental moisture and air entering the container body, improving the overall watertightness and airtightness of the energy storage container, and consequently improving the operational reliability and stability of the energy storage container and the corresponding energy storage system.

[0080] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This application provides an energy storage container, which includes a container body 100, a door panel 200, and a sealing assembly 300.

[0081] The box 100 has an opening 110 on one side.

[0082] The door panel 200 is rotatably connected to the box body 100. The door panel 200 is used to open or close the opening 110, and a gap space 120 is formed between the door panel 200 and the box body 100.

[0083] The sealing assembly 300 includes an inner sealing strip 310 and an outer sealing strip 320. The inner sealing strip 310 is connected to the housing 100 and surrounds the opening 110, while the outer sealing strip 320 is connected to the door panel 200.

[0084] When the door panel 200 closes the opening 110, it forms an interference fit with the inner sealing strip 310, and the outer sealing strip 320 forms an interference fit with the housing 100 when the door panel 200 closes the opening 110, so as to seal the gap space 120.

[0085] It should be noted that in this application, the container 100 is the outer frame structure of an energy storage container, and the container 100 may be, but is not limited to, a rectangular frame structure, a square frame structure, etc.

[0086] The multiple outer walls of the housing 100 enclose a receiving cavity 130 with an opening 110. Multiple energy storage units 500 enter the receiving cavity 130 through the opening 110 and are arranged and installed inside the receiving cavity 130. The energy storage unit 500 may include electrical functional components such as power modules and battery modules. The housing 100 provides structural protection and support for the energy storage unit 500.

[0087] It should be noted that the housing 100 may have multiple openings 110, which are arranged one-to-one on the outer wall of the housing. Correspondingly, each opening 110 is provided with a door panel 200 and a sealing component 300. The arrangement of multiple openings 110 facilitates the maintenance of the energy storage unit 500 in the housing cavity 130.

[0088] In this application, the door panel 200 can be rotatably connected to the outer wall of the housing 100 with the opening 110 via hinges, hinge plates, etc. To facilitate the connection and assembly of the door panel 200 and the housing 100, a door frame can be formed around the opening 110 of the housing 100. The door frame is integrally formed with the housing 100 or detachably connected. It can be understood that, at this time, the door frame surrounds the opening 110, and the door panel 200 is rotatably connected to the door frame of the housing 100, so as to open or close the opening 110 by rotating relative to the door frame.

[0089] It is understood that the door panel 200 has a closed state with the opening 110 closed and an open state with the opening 110 open. When the door panel 200 is in the closed state, a gap space 120 is formed between the door panel 200 and the housing 100. This gap space 120 can be understood as the assembly gap between the door panel 200 and the housing 100.

[0090] In the sealing assembly 300 of this application, the inner sealing strip 310 is an annular shape adapted to the shape of the opening 110, and surrounds the opening 110. The inner sealing strip 310 can be fixedly connected to the inner wall or side wall of the opening 110 by structural adhesive, so that the inner sealing strip 310 remains stable on the housing 100, reducing the probability of the inner sealing strip 310 slipping or falling off the housing 100. The inner sealing strip 310 can be, but is not limited to, a rubber strip, plastic strip, silicone strip, or other structural material that is easily deformed under stress.

[0091] In the sealing assembly 300 of this application, the outer sealing strip 320 is annular in shape that matches the shape of the gap space 120. The outer sealing strip 320 can be fixed to the outer edge of the door panel 200 with structural adhesive, so that the outer sealing strip 320 remains stable on the door panel 200 and reduces the probability of the outer sealing strip 320 slipping or falling off the door panel 200. The outer sealing strip 320 can be, but is not limited to, a rubber strip, plastic strip, silicone strip, or other structural body that is easily deformed under stress.

[0092] Understandably, when the door panel 200 rotates relative to the housing 100 to close the opening 110 on the housing 100, the parts of the door panel 200 that are opposite to the inner sealing strip 310 press against the inner sealing strip 310, causing the inner sealing strip 310 to deform. This results in an interference fit between the door panel 200 and the inner sealing strip 310 after the opening 110 is completely closed. In this way, the gap between the sealed opening 110 and the inner side of the door panel 200 (the side of the door panel facing the opening) also ensures that the housing 100 and the inner side of the door panel 200 remain relatively sealed.

[0093] Simultaneously, when the door panel 200 rotates relative to the housing 100 to close the opening 110 on the housing 100, the outer sealing strip 320 is correspondingly embedded in the gap space 120. Under the combined restraint of the door panel 200 and the housing 100, the outer sealing strip 320 is pressed tightly into the gap space 120, causing deformation of the outer sealing strip 320. This results in an interference fit between the outer sealing strip 320 and the housing 100 after the door panel 200 has completely closed the opening 110. Thus, the gap space 120 between the door panel 200 and the housing 100 is sealed, maintaining a relative seal between the housing 100 and the outer side of the door panel 200 (the side of the door panel facing away from the opening).

[0094] It should also be noted that when the door panel 200 closes the opening 110, the vertical projection of the gap space 120 relative to the door panel 200 is within the vertical projection of the outer sealing strip 320 relative to the door panel 200. In this way, the outer sealing strip 320 completely covers the gap space 120 when the door panel 200 closes the opening 110, and the outer sealing strip 320 completely seals the gap space 120.

[0095] It is easy to understand that the energy storage container of this application embodiment, by providing an inner sealing strip 310 around the opening 110 of the container 100, and by forming an interference fit between the door panel 200 and the inner sealing strip 310 when the opening 110 is closed, seals the gap between the opening 110 and the inner side of the door panel 200, thus keeping the container 100 and the inner side of the door panel 200 relatively sealed; by providing an outer sealing strip 320 on the door panel 200, and by having the outer sealing strip 320 be constrained by the container 100 and the door panel 200 together in the gap space 120 between the container 100 and the door panel 200 when the opening 110 of the door panel 200 is closed, seals the gap space 120, thus keeping the container 100 and the outer side of the door panel 200 relatively sealed.

[0096] Thus, when the door panel 200 closes the opening 110, the inner sealing strip 310 and the outer sealing strip 320 respectively seal the inner side and the outer side of the door panel 200, ensuring that the inner side of the door panel 200 and the container 100, as well as the outer side of the door panel 200 and the container 100, are relatively sealed. This effectively improves the sealing performance between the door panel 200 and the container 100, reduces the probability of ambient moisture and air entering the container 100, and improves the overall water tightness and air tightness of the energy storage container. Consequently, it enhances the operational reliability and stability of the energy storage container and the corresponding energy storage system.

[0097] In some embodiments of this application, see Figure 5 and Figure 6 The inner edge of the door panel 200 forms a first corner portion 210 that bends toward the outer side of the door panel 200. The inner sealing strip 310 is configured to deform along the contour of the first corner portion 210 under the support of the first corner portion 210 so as to fit the first corner portion 210.

[0098] Specifically, the door panel 200 is roughly rectangular in shape. The wall surface of the door panel 200 includes an inner side wall (inner side of the door panel 200), an outer side wall (outer side of the door panel), and two side walls, which connect the inner and outer side walls. It is easy to understand that the inner and outer side walls are parallel, and the distance between them is the thickness of the door panel 200. The connection between the inner side wall and the side wall forms a first corner portion 210. The first corner portion 210 is either rounded or right-angled, and there are four first corner portions 210, located at the four corners of the inner edge of the door panel 200.

[0099] When the door panel 200 rotates relative to the housing 100 to close the opening 110 on the housing 100, the inner wall of the door panel 200 presses the inner sealing strip 310 to deform the inner sealing strip 310. With the help of the corner protrusion and the turning profile of the first corner portion 210, the inner sealing strip 310 can conform to the turning deformation of the first corner portion 210, so that the deformed part of the inner sealing strip 310 is tightly fitted to the inner edge of the door panel 200, and the inner edge area of ​​the door panel 200 is completely fitted and covered by the deformed part of the inner sealing strip 310, thereby completely sealing the gap between the inner side of the door panel 200 and the housing 100, eliminating sealing dead corners, and improving the sealing effect of the inner sealing strip 310 on the inner side of the door panel 200.

[0100] See also some embodiments of this application. Figure 5 and Figure 6 The outer edge of the door panel 200 forms a second corner portion 220 that bends toward the inner side of the door panel 200, and the outer sealing strip 320 is connected to the side wall of the door panel 200 and fits along the second corner portion 220.

[0101] Specifically, the connection between the outer wall of the door panel 200 and the side wall forms a second corner 220. The second corner 220 is rounded or right-angled. There are four second corners 220, which are located at the four corners of the outer edge of the door panel 200.

[0102] When the door panel 200 rotates relative to the box body 100 to close the opening 110 on the box body 100, the inner part of the outer sealing strip 320 enters the gap space 120 between the door panel 200 and the box body 100, and deforms under the joint constraint of the door panel 200 and the box body 100, so that the inner part of the outer sealing strip 320 is stuck in the gap space 120.

[0103] Meanwhile, with the help of the corner protrusion and turning contour of the second corner portion 220, the part of the outer sealing strip 320 located at the outer edge of the door panel 200 can fit against the turning deformation of the second corner portion 220, so that the outer edge area of ​​the door panel 200 is completely covered by the deformed part of the outer sealing strip 320, thereby completely sealing the gap between the outer side of the door panel 200 and the outer sealing strip 320, eliminating the sealing dead angle between the outer side of the door panel 200 and the outer sealing strip 320, and improving the sealing effect of the outer sealing strip 320 on the outer side of the door panel 200.

[0104] Furthermore, see also Figure 3 , Figure 5 and Figure 6 The outer sealing strip 320 includes a first fitting part 321 and a second fitting part 322. The second fitting part 322 is connected to one end of the first fitting part 321 near the outside of the door panel 200 and is bent relative to the first fitting part 321. The first fitting part 321 is fitted to the edge of the door panel 200, and the second fitting part 322 is fitted to the second corner part 220.

[0105] Specifically, the first bonding part 321 and the second bonding part 322 are integrally formed structures.

[0106] When the door panel 200 rotates relative to the housing 100 to close the opening 110 on the housing 100, the first fitting part 321 of the outer sealing strip 320 enters the gap space 120 between the door panel 200 and the housing 100, and the second fitting part 322 fits along the contour of the second corner part 220. Under the squeezing action of the door panel 200 and the second corner part 220 on it, the second fitting part 322 fits tightly and covers the second corner part 220. At the same time, the first fitting part 321 fits tightly with the edge of the door panel 200 under the constraint of the second fitting part 322.

[0107] In this way, the outer edge of the door panel 200 is completely covered by the first fitting part 321 and the second fitting part 322 of the outer sealing strip 320, thereby sealing the gap between the outer side of the door panel 200 and the outer sealing strip 320, eliminating the sealing dead angle between the outer side of the door panel 200 and the outer sealing strip 320, and improving the sealing effect of the outer sealing strip 320 on the outer side of the door panel 200.

[0108] Furthermore, see also Figure 3 , Figure 5 and Figure 6 The outer sealing strip 320 also includes a deformable part 323, which is located in the gap space 120 and connected to one end of the first fitting part 321 near the inner side of the door panel 200. The deformable part 323 is bent relative to the first fitting part 321 toward the box body 100 so as to abut against the box body 100 when the door panel 200 closes the opening 110.

[0109] Specifically, the second bonding part 322, the first bonding part 321, and the deformable part 323 are connected in sequence to form a Z-shaped structure, and the second bonding part 322, the first bonding part 321, and the deformable part 323 are integrally formed.

[0110] When the door panel 200 rotates relative to the housing 100 to close the opening 110 on the housing 100, the deformable part 323 and the first fitting part 321 of the outer sealing strip 320 both enter the gap space 120. The first fitting part 321 fits tightly against the edge area of ​​the door panel 200. Under the constraint of the door panel 200, the first fitting part 321 and the housing 100, the deformable part 323 is squeezed and deformed, so that the deformable part 323 tightly abuts against the housing 100, so that the deformable part 323 directly seals the gap space 120, thereby sealing the gap between the housing 100 and the outer sealing strip 320 and improving the sealing effect of the outer sealing strip 320 on the gap space 120.

[0111] In addition, see also Figure 6 A step stop 230 is also formed at the edge of the door panel 200. The step stop 230 is located between the first corner portion 210 and the second corner portion 220, and the step stop 230 is smoothly connected to the first corner portion 210 and the second corner portion 220 respectively.

[0112] Since the deformable part 323 itself is a structure that bends towards the housing 100 relative to the first fitting part 321, when the deformable part 323 of the outer sealing strip 320 enters the gap space 120, the deformable part 323 will be further bent and deformed towards the housing 100 side under the stopping and limiting action of the step stop part 230, increasing the squeezing force of the door panel 200 on the deformable part 323, thereby increasing the deformation amount of the deformable part 323 and making the deformation bending angle of the deformable part 323 larger, thereby increasing the contact area between the deformable part 323 and the corresponding side wall of the housing 100, and further improving the sealing effect of the outer sealing strip 320 on the gap space 120.

[0113] Furthermore, see also Figure 3 , Figure 5 and Figure 6 The deformable part 323 is constructed as an arc-shaped structure that bends outward toward the door panel 200.

[0114] By constructing the deformable part 323 as an arc-shaped structure bending outward toward the door panel 200, on the one hand, during the process of the door panel 200 driving the deformable part 323 into the gap space 120, the curved deformable part 323 can slide along the corresponding side wall of the housing 100 and be guided into the gap space 120, reducing the probability that the deformable part 323 will be interfered with by the corresponding side wall of the housing 100 and have difficulty entering the gap space 120. On the other hand, it makes it easier for the deformable part 323 to bend and deform under the constraints of the door panel 200 and the corresponding side wall of the housing 100, so that the deformable part 323 can fit more tightly against the corresponding side wall of the housing 100, further improving the sealing effect of the outer sealing strip 320 on the gap space 120.

[0115] Further, see Figure 3 , Figure 5 , Figure 6 and Figure 7 The outer sealing strip 320 also includes an overlapping portion 324, which is located outside the gap space 120 and connected to one end of the first fitting portion 321 away from the inner side of the door panel 200. The overlapping portion 324 is bent relative to the first fitting portion 321 toward the box body 100 so as to abut against the box body 100 when the door panel 200 closes the opening 110.

[0116] Specifically, the deformable part 323, the first fitting part 321, and the overlapping part 324 are connected in sequence to form a U-shaped structure, and the deformable part 323, the first fitting part 321, and the overlapping part 324 are integrally formed.

[0117] When the door panel 200 rotates relative to the housing 100 to close the opening 110 on the housing 100, the deformable part 323 and the first fitting part 321 enter the gap space 120. The deformable part 323 tightly abuts against the corresponding side wall of the housing 100, and the first fitting part 321 and the second fitting part 322 tightly fit against the edge of the door panel 200. Since the overlapping part 324 is connected to the end of the first fitting part 321 away from the inside of the door panel 200 and the overlapping part 324 is bent relative to the first fitting part 321 toward the housing 100, the overlapping part 324 does not enter the gap space 120, but directly abuts against the outer wall of the housing 100. The overlapping part 324 seals the gap between the outer wall of the housing 100 and the outer sealing strip 320, reducing the probability of external moisture entering the gap space 130 and causing oxidation and corrosion of the deformable part 323.

[0118] Further, see Figure 6 and Figure 7 The distance between the two ends of the deformable part 323 is greater than the width of the gap space 120 and less than the distance between the two ends of the overlapping part 324.

[0119] It should be noted that the distance between the two ends of the deformable part 323 refers to the distance between the two ends of the deformable part 323 when it has not entered the gap space 120.

[0120] Specifically, see Figure 6 If the distance between the two ends of the deformable part 323 is D1, the width of the gap space 120 is D2, and the distance between the two ends of the overlapping part 324 is D3, then D2 < D1 < D3.

[0121] When the door panel 200 rotates relative to the housing 100 to close the opening 110 on the housing 100, the deformable part 323 can slide along the corresponding side wall of the housing 100 and enter the gap space 120 under the drive of the door panel 200. The deformable part 323 deforms under the joint constraint of the door panel 200 and the corresponding side wall of the housing 100, so that the deformable part 323 is clamped between the door panel 200 and the corresponding side wall of the housing 100 in a more curved shape than the initial shape. Since the deformable part 323 has the tendency to recover its deformation, by setting the distance between the two ends of the deformable part 323 to be greater than the width of the gap space 120, the two ends of the deformable part 323 can be stably abutted against the edge of the door panel 200 and the corresponding side wall of the housing 100 respectively when the deformable part 323 is in the gap space 120, thus stably maintaining the sealing of the gap space 120.

[0122] Meanwhile, by setting the distance between the two ends of the overlapping portion 324 to be greater than the distance between the two ends of the deformable portion 323, the overlapping portion 324 cannot enter the gap space 120 and can only abut against the outer wall of the housing 100. In this way, the overlapping portion 324 isolates the deformable portion 323 from the external environment, reduces the probability of environmental moisture entering the gap space 120 and corroding the deformable portion 323, and improves the sealing effect of the outer sealing strip 320 on the gap space 120.

[0123] It is understood that in the sealing assembly 300 of this application, by setting the outer sealing strip 320 as a mating structure of the first mating part 321, the second mating part 322 and the deformable part 323, the first mating part 321 and the second mating part 322 cooperate to seal the gap between the door panel 200 and the outer sealing strip 320, the deformable part 323 enters the gap space 120 to directly seal the gap space 120, and the overlapping part 324 overlaps on the outer wall of the box 100 to isolate the deformable part 323 from the external environment. In addition, the inner sealing strip 310 seals the inside of the door panel 200, so that a multi-layer sealing structure is formed between the door panel 200 and the box 100. At the same time, the probability of external moisture contact and oxidation corrosion to the deformable part 323 and the inner sealing strip 310 is reduced, so that the door panel 200 and the box 100 have a better sealing effect.

[0124] See also Figure 2 , Figure 3 and Figure 4 In some embodiments, the energy storage container also includes a locking mechanism 400 for locking or releasing the door panel 200 to the container body 100, and the locking mechanism 400 is configured to provide a clamping force to the door panel 200 to press against the inner sealing strip 310 and the outer sealing strip 320.

[0125] Specifically, the number of locking mechanisms 400 is not limited and there can be multiple ones. The locking mechanism 400 includes a lock handle 410, a rotating rod 420 rotatably mounted on the door panel 200, a lock hook 430 connected to the rotating rod 420, and a first lock seat 440 mounted on the housing 100. The lock handle 410 is connected to the rotating rod 420 and is used to drive the rotating rod 420 to rotate relative to the door panel 200 so that the lock hook 430 is locked or disengaged from the first lock seat 440.

[0126] The locking mechanism 400 also includes an anti-rotation pin (not shown in the figure) and a second lock seat 450 disposed on the door panel 200. The anti-rotation pin locks the lock handle 410 onto the door panel 200 by passing through the lock handle 410 and the second lock seat 450, thereby restricting the rotation of the lock handle 410 and the rotating rod 420.

[0127] It should be understood that when the housing 100 is in the closed state, the locking hook 430 on the rotating rod 420 is locked to the first locking seat 440, and at the same time, the locking handle 410 is locked to the door panel 200, so that the door panel 200 presses the inner sealing strip 310 and the outer sealing strip 320, so that the door panel 200 and the housing 100 are kept relatively sealed.

[0128] When it is necessary to rotate and open the box 100, the anti-rotation pin can be pulled out from the lock handle 410 and the second lock seat 450, and then the lock handle 410 can be operated to drive the rotating rod 420 to rotate relative to the door panel 200, so that the lock hook 430 is separated from the first lock seat 440, thereby releasing the lock on the door panel 200 and allowing the door panel 200 to rotate and open relative to the box 100.

[0129] It is easy to understand that by setting the locking mechanism 400 and constructing the locking mechanism 400 to provide a pressing force to the door panel 200 to press the inner sealing strip 310 and the outer sealing strip 320, the inner sealing strip 310 and the outer sealing strip 320 are pressed when the door panel 200 is in the closed state, thereby improving the sealing effect between the door panel 200 and the housing 100.

[0130] In some embodiments of this application, see Figure 8 and Figure 9 The energy storage container also includes energy storage unit 500 and fire protection system 20.

[0131] The energy storage unit 500 is located in the housing cavity 130 of the enclosure 100. The fire protection system 20 includes a fire circulation pipe 21 located in the housing cavity 130 and at least one exhaust pipe 22 located on the fire circulation pipe 21, the fire circulation pipe 21 being spaced around the energy storage unit 500.

[0132] Among them, the fire-fighting circulation pipeline 21 is used to circulate the flame-retardant medium, and the exhaust component 22 is used to discharge the flame-retardant medium into the receiving cavity 130.

[0133] It should be noted that in this application, the energy storage unit 500 may include electrical functional components such as power modules and multiple battery modules, and the energy storage unit 500 may also be an electrical box composed of one or more batteries. The number of energy storage units 500 is not limited.

[0134] The fire-fighting circulation pipe 21 is connected to the receiving cavity 130 to form a fire-fighting circulation loop, meaning that the receiving cavity 130 is a component of the fire-fighting circulation loop. The main air inlet (not shown in the figure) and main air outlet (not shown in the figure) of the fire-fighting circulation pipe 21 are respectively located on the outer wall of the container 100. A flame-retardant medium supply device is installed outside the energy storage container. The flame-retardant medium supply device is connected to the main air inlet of the fire-fighting circulation pipe 21 to supply flame-retardant medium to the fire-fighting circulation pipe 21, so that the flame-retardant medium flows along the fire-fighting circulation loop formed by the fire-fighting circulation pipe 21 and the receiving cavity 130, and can flow out from the main air outlet of the fire-fighting circulation pipe 21.

[0135] The flame retardant medium can be an inert gas such as nitrogen. Of course, the flame retardant medium can also be other media that are not conducive to the combustion reaction. The flame retardant medium is chemically stable and will not damage the energy storage unit 500 in the cavity 130.

[0136] The exhaust component 22 is directly connected to the fire circulation pipeline 21 and located in the receiving cavity 130. The exhaust component 22 can be constructed as a nozzle structure so as to spray the flame-retardant medium in the fire circulation pipeline 21 directly into the receiving cavity 130.

[0137] It is easy to understand that the exhaust device 22 discharges the flame-retardant medium flowing in the fire-fighting circulation pipe 21 into the receiving cavity 130, so that the flame-retardant medium circulates in the receiving cavity 130, and discharges the oxygen in the receiving cavity 130 into the container 100. At the same time, the receiving cavity 130 is filled with flame-retardant medium, so that the receiving cavity 130 of the container 100 is in an oxygen-free environment, reducing the probability of combustion and explosion when the energy storage unit 500 experiences thermal runaway, and improving the operational reliability and stability of the energy storage container.

[0138] Furthermore, the flame-retardant medium in the fire-fighting circulation pipeline 21 can be used as a fire extinguishing agent. When the energy storage unit 500 experiences thermal runaway, the fire extinguishing agent flowing in the fire-fighting circulation pipeline 21 can be discharged to the thermally runaway energy storage unit 500 through the exhaust device 22. This can also reduce the probability of combustion and explosion when the energy storage unit 500 experiences thermal runaway, and improve the operational reliability and stability of the energy storage container.

[0139] Further, see Figure 9 The fire circulation pipeline 21 includes a main fire pipeline 211 and multiple fire branch pipelines 212 connected to the main fire pipeline 211. All fire branch pipelines 212 are distributed at intervals along the length direction X of the receiving cavity 130, and an energy storage area R is formed between two adjacent fire branch pipelines 212. At least one energy storage unit 500 is located in the energy storage area R.

[0140] Specifically, the main fire access route 211 is located at the bottom of the receiving cavity 130 and extends along the length direction X of the receiving cavity 130. Each fire access branch route 212 is connected to the main fire access route 211 through a corresponding pipe joint.

[0141] See Figure 8 , Figure 9 All fire branch lines 212 divide the housing 130 into five energy storage zones R. Each energy storage zone R includes eight energy storage partitions R1. Each energy storage partition R1 is equipped with one or more energy storage units 500. In this way, all the energy storage units 500 are arranged in an orderly manner within the housing 130.

[0142] Each fire branch 212 is equipped with multiple exhaust pipes 22, so that each energy storage zone R1 has multiple exhaust pipes 22 on its periphery.

[0143] Understandably, through the above configuration, the exhaust component 22 discharges the flame-retardant medium in the corresponding fire branch 212 to the energy storage unit 500 in the corresponding energy storage area R, which enables the flame-retardant medium to be filled relatively evenly in each energy storage area R. Similarly, the exterior of each energy storage unit 500 is also filled with flame-retardant medium. When the energy storage unit 500 experiences thermal runaway, the flame-retardant medium filling the exterior of the energy storage unit 500 can suppress the combustion and ignition of the energy storage unit 500, thereby reducing the probability of combustion and explosion when the energy storage unit 500 experiences thermal runaway, and improving the operational reliability and stability of the energy storage container.

[0144] Further, see Figure 8 , Figure 9 Fire branch 212 includes multiple fire branch pipes 2121 spaced apart along the width direction Y of the receiving cavity 130. All fire branch pipes 2121 are connected. The fire branch pipes 2121 extend along the height direction Z of the receiving cavity 130, and multiple exhaust pipes 22 spaced apart along the height direction Z are arranged on the fire branch pipes 2121.

[0145] Specifically, there are six fire branch lines 212, which are distributed at X intervals along the length of the receiving cavity 130, so that the arrangement of the fire branch lines 212 does not affect the disassembly and maintenance of the energy storage unit 500.

[0146] All fire branch lines 212 are connected in parallel to the main fire line 211. Each fire branch line 212 includes three fire branch pipes 2121 spaced apart along the width direction Y. All fire branch pipes 2121 on each fire branch line 212 are connected in series, parallel or mixed. The extension length of each fire branch pipe 2121 is approximately equal to the height of the receiving cavity 130.

[0147] This configuration ensures that each energy storage zone R is surrounded by multiple fire-fighting pipes 2121. The exhaust pipes 22 on the fire-fighting pipes 2121 discharge the flame-retardant medium to the energy storage units 500 in the corresponding energy storage zone R, so that the exterior of each energy storage unit 500 is filled with the flame-retardant medium. When the energy storage unit 500 experiences thermal runaway, the flame-retardant medium filling the exterior of the energy storage unit 500 can suppress the combustion and ignition of the energy storage unit 500, thereby reducing the probability of combustion and explosion when the energy storage unit 500 experiences thermal runaway and improving the operational reliability and stability of the energy storage container.

[0148] Furthermore, see also Figure 8 , Figure 9 The energy storage area R includes multiple energy storage zones R1 distributed along the height direction Z. Each energy storage zone R1 is equipped with at least one energy storage unit 500. The exhaust pipe 22 on the fire protection pipe 2121 is located on top of the energy storage unit 500 in the corresponding energy storage zone R1.

[0149] Specifically, each energy storage zone R1 is equipped with one energy storage unit 500. The number of exhaust pipes 22 on each fire-fighting branch pipe 2121 is equal to the number of energy storage zones R1 in each energy storage area R.

[0150] This configuration ensures that multiple exhaust pipes 22 are distributed on both sides of the top of each energy storage unit 500. When thermal runaway occurs in the energy storage unit 500, the exhaust pipes 22 discharge the flame-retardant medium in the fire-fighting pipe 2121 to the top of the energy storage unit 500, allowing the flame-retardant medium to flow from the top to the bottom of the energy storage unit 500. This effectively suppresses the combustion of the energy storage unit 500, thereby reducing the probability of combustion and explosion and improving the operational reliability and stability of the energy storage container.

[0151] Further, see Figure 9 , Figure 10 The exhaust component 22 has at least three exhaust ports 221, and any two exhaust ports 221 on the exhaust component 22 have different orientations.

[0152] Specifically, the exhaust port 221 on the exhaust component 22 can be configured as a nozzle structure, and the three exhaust ports 221 on the exhaust component 22 are at different heights or at the same height.

[0153] With the above configuration, each of the different directions on the outside of the energy storage unit 500 has a corresponding exhaust port 221. All the exhaust ports 221 distributed on the outside of the energy storage unit 500 can spray flame-retardant medium towards various parts of the energy storage unit 500, so that the flame-retardant medium is more evenly distributed on various parts of the energy storage unit 500, further reducing the probability of the energy storage unit 500 burning and exploding, and improving the operational reliability and stability of the energy storage container.

[0154] In some embodiments of this application, see Figure 11 and Figure 12 The energy storage container also includes a pipeline interface assembly 600 disposed on the outer wall of the container body 100. The pipeline interface assembly 600 includes a storage box 610 and a connecting pipe 620. One end of the connecting pipe 620 is sealed through the storage box 610 and extends into the interior of the container body 100. The other end of the connecting pipe 620 is located inside the storage box 610. The end of the connecting pipe 620 located inside the container body 100 is provided with an inner pipe interface 621, and the end of the connecting pipe 620 located inside the storage box 610 is provided with an outer pipe interface 622.

[0155] Specifically, the storage box 610 is embedded in the outer wall of the box 100. The storage box 610 can be directly welded to the outer wall of the box 100 through a full welding process, so that the storage box 610 and the box 100 are relatively sealed.

[0156] Similarly, after the connecting pipe 620 passes through the storage box 610 and enters the interior of the cabinet 100, the gap between the connecting pipe 620 and the storage box 610 is welded by a full welding process, so that the storage box 610 and the connecting pipe 620 are relatively sealed.

[0157] The end of the connecting pipe 620 inside the housing 100 is connected to a fire-fighting or cooling pipeline arranged inside the housing 100 via an inner pipe interface 621. The end of the connecting pipe 620 outside the housing 100 is connected to the corresponding discharge or inlet pipeline via an outer pipe interface 622. Both the inner pipe interface 621 and the outer pipe interface 622 are constructed as gland heads to improve the sealing performance of the connection between the connecting pipe 620 and the corresponding pipeline.

[0158] It is easy to understand that by setting the pipe interface assembly 600 on the outer wall of the housing 100, the storage box 610 on the pipe interface assembly 600 facilitates the connection and arrangement of the connecting pipe 620. The setting of the connecting pipe 620 facilitates the connection between the pipes inside the housing 100 and the pipes outside the housing 100 without affecting the sealing performance of the housing 100.

[0159] It should be noted that, see Figure 13 In this embodiment of the application, when the energy storage containers are configured on the energy storage system, multiple energy storage containers are connected in a stacked manner. Adjacent energy storage containers are detachably stacked and connected by insulators 800, which serve both load-bearing and insulation functions. Each energy storage container includes a positive and a negative electrode, and the positive electrode on one energy storage container is connected in series with the negative electrode on the adjacent energy storage container. In this way, all energy storage containers on the energy storage system form a series electrical connection, enabling the energy storage system to operate normally and stably.

[0160] Based on this, in some embodiments of this application, see [reference] Figure 13 , Figure 14 and Figure 15 The energy storage container also includes an electrical connection assembly 700 disposed on the outer wall of the container 100. The electrical connection assembly 700 includes an electrical connector 710, which is sealed through the outer wall of the container 100 so that the two ends of the electrical connector 710 are respectively inside the container 100 and outside the container 100.

[0161] Specifically, the electrical connector 710 can be understood as the positive or negative pole of the energy storage container. Two electrical connection components 700 are provided on the outer wall of the container 100, and the two electrical connectors 710 on the two electrical connection components 700 correspond to the positive and negative poles of the energy storage container, respectively.

[0162] By sealing the electrical connector 710 through the outer wall of the container 100, the electrical connector 710 and the container 100 are kept relatively sealed, and the two energy storage containers are connected in series by means of the electrical connector 710, which simplifies the circuit layout on the energy storage container.

[0163] Further, see Figure 15 and Figure 16 The electrical connection assembly 700 also includes a first insulating member 720, which is embedded in the outer wall of the housing 100. The first insulating member 720 has a through hole 721 that communicates with the interior of the housing 100. The electrical connection member 710 passes through the through hole 721 and is interference-fitted with the first insulating member 720.

[0164] Specifically, the first insulating element 720 is constructed as a wall sleeve, which is pre-embedded in the outer wall of the box 100 to be embedded in the outer wall of the box 100. The wall sleeve is made of insulating material, such as a silicone rubber sleeve.

[0165] The electrical connector 710 is constructed as a cylinder. After passing through the through hole 721 on the first insulating member 720, the electrical connector 710 contracts radially to make an interference fit with the first insulating member 720, so that the electrical connector 710 and the first insulating member 720 are kept relatively sealed.

[0166] The electrical connector 710 has a first connecting piece 711 and a second connecting piece 712 detachably provided at both ends. Both the first connecting piece 711 and the second connecting piece 712 are constructed as conductive pieces. Both ends of the electrical connector 710 can be provided with detachable clamps. The first connecting piece 711 and the second connecting piece 712 are connected to the corresponding ends of the electrical connector 710 through the corresponding detachable clamps, which facilitates the disassembly, assembly, and replacement of the first connecting piece 711, the second connecting piece 712, and the electrical connector 710.

[0167] It is easy to understand that by embedding a first insulating element 720 on the outer wall of the container 100, the electrical connector 710 extends into the interior of the container 100 through the through hole 721 of the first insulating element 720. At the same time, the first insulating element 720 and the electrical connector 710 are interference-fitted, so that the electrical connector 710 and the first insulating element 720 and the electrical connector 710 and the container 100 are relatively sealed, and the electrical connector 710 and the outer wall of the container 100 are relatively insulated, thereby improving the overall airtightness and watertightness of the container, and correspondingly improving the overall operational stability and reliability of the energy storage container.

[0168] Further, see Figure 15 and Figure 16 A sealing ring 730 is provided between the first insulating component 720 and the housing 100.

[0169] Specifically, the sealing ring 730 can be a rubber ring, a silicone ring, etc.

[0170] The sealing ring 730 between the first insulating component 720 and the container 100 can seal the gap between the first insulating component 720 and the container 100, further improving the water tightness and air tightness of the container 100, and correspondingly improving the overall operational stability and reliability of the energy storage container.

[0171] In addition, see Figure 17 This application also provides an energy storage system, which includes the energy storage container of any of the above embodiments.

[0172] The energy storage system described in this application embodiment can be understood as a device or system for storing and releasing energy, designed to store energy when needed and release the stored energy when energy demand exceeds supply or when energy supply is unstable, in order to meet demand. This energy storage system can be an energy storage power system such as a hydroelectric, thermal, wind, or solar power plant.

[0173] Of course, in some embodiments, the energy storage system can also be directly understood as the energy storage container of any of the above embodiments.

[0174] Specifically, see Figure 17The energy storage system includes a monitoring backend 101, a system controller (Valve Base Controller, VBC) 102, multiple energy storage sub-modules 103 (which can be understood as the aforementioned energy storage containers), a battery management controller (BMC) 104 and a sub-module controller (SMC) 105 corresponding to each energy storage sub-module (SM) 103. The battery management controller 104 and the sub-module controller 105 are connected in a one-to-one communication manner. The monitoring backend 101 is connected to the system controller 102 and each battery management controller 104, and the system controller 102 is also connected to each sub-module controller 105. The battery management controller 104 is used to obtain the status information of the corresponding energy storage sub-module 103. The sub-module controller 105 is used to control the corresponding energy storage sub-module 103. The monitoring backend 101 is used for status monitoring. The system controller 102 is used to obtain the communication status of each communication path in the energy storage system and execute corresponding processing actions according to the communication status.

[0175] In this embodiment of the application, the energy storage system includes multiple energy storage submodules 103. Each energy storage submodule 103 can be composed of multiple electrical cabinets connected in series and / or in parallel. Each electrical cabinet can be composed of multiple electrical boxes connected in series and / or in parallel. Each electrical box can be composed of multiple batteries connected in series and / or in parallel. Figure 17 As shown.

[0176] The energy storage system also includes a battery management controller 104 corresponding to the energy storage submodule 103. The battery management controller 104 can collect the status information of the corresponding energy storage submodule 103 and is responsible for detecting the battery's status, performance, and health status. The aforementioned status information may include voltage, current, temperature, state of charge / discharge, state of charge (SOC), state of health (SOH), etc.

[0177] The energy storage system also includes submodule controllers 105 that are communicatively connected to the battery management controller 104. The battery management controller 104 can transmit the collected status information to the submodule controllers 105, and the submodule controllers 105 can also transmit control commands to the battery management controller 104, thereby controlling the corresponding energy storage submodules 103. For example, controlling the energy storage submodules 103 to enter or leave the energy storage system, and also controlling the charging and discharging of the energy storage submodules 103.

[0178] The energy storage system also includes a system controller 102 and a monitoring backend 101. The system controller 102 is communicatively connected to multiple submodule controllers 105 and the monitoring backend 101, respectively. The monitoring backend 101 is also communicatively connected to multiple battery management controllers 104. The system controller 102 can obtain status information collected by the battery management controllers 104 through the submodule controllers 105 and transmit the status information to the monitoring backend 101. The system controller 102 can also obtain status information collected by the battery management controllers 104 through the monitoring backend 101. The system controller 102 can send control commands to the submodule controllers 105 based on the status information, thereby controlling each energy storage submodule 103. The system controller 102 can determine the communication status of each communication path and take corresponding actions when a communication failure occurs. The monitoring backend 101 can monitor the status of the system controller 102 through communication with the system controller 102, and can also monitor the status of the battery management controllers 104 through communication with them. The monitoring backend 101 is mainly used for monitoring status. In some embodiments, the monitoring backend 101 and the system controller 102 can be integrated as two components into a single hardware device.

[0179] It is easy to understand that the energy storage system in this embodiment of the application has better operational stability and reliability due to the configuration of the aforementioned energy storage container.

[0180] See Figures 1 to 17 This application provides an energy storage container and an energy storage system, wherein the energy storage system includes the energy storage container.

[0181] The energy storage container includes: a container body 100 with an opening 110 on one side; a door panel 200 rotatably connected to the container body 100, the door panel 200 being used to open or close the opening 110, and a gap space 120 forming between the door panel 200 and the container body 100; and a sealing assembly 300 including an inner sealing strip 310 and an outer sealing strip 320, the inner sealing strip 310 being connected to the container body 100 and surrounding the opening 110, and the outer sealing strip 320 being connected to the door panel 200; the door panel 200 forming an interference fit with the inner sealing strip 310 when the opening 110 is closed, and the outer sealing strip 320 forming an interference fit with the container body 100 when the door panel 200 closes the opening 110, thereby sealing the gap space 120.

[0182] The energy storage container of this application embodiment provides an inner sealing strip 310 around the opening 110 of the container 100, and the door panel 200 forms an interference fit with the inner sealing strip 310 when the opening 110 is closed, sealing the gap between the opening 110 and the inner side of the door panel 200, thus keeping the container 100 and the inner side of the door panel 200 relatively sealed. Furthermore, an outer sealing strip 320 is provided on the door panel 200, and the outer sealing strip 320 is constrained by the container 100 and the door panel 200 together in the gap space 120 between the container 100 and the door panel 200 when the opening 110 is closed, thus sealing the gap space 120, thereby keeping the container 100 and the outer side of the door panel 200 relatively sealed.

[0183] Thus, when the door panel 200 closes the opening 110, the inner sealing strip 310 and the outer sealing strip 320 respectively seal the inner side and the outer side of the door panel 200, ensuring that the inner side of the door panel 200 and the container 100, as well as the outer side of the door panel 200 and the container 100, are relatively sealed. This effectively improves the sealing performance between the door panel 200 and the container 100, reduces the probability of ambient moisture and air entering the container 100, and improves the overall water tightness and air tightness of the energy storage container. Consequently, it enhances the operational reliability and stability of the energy storage container and the corresponding energy storage system.

[0184] The energy storage system of this application embodiment has better operational stability and reliability due to the configuration of the aforementioned energy storage container.

[0185] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0186] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An energy storage container, characterized in that, include: The box has an opening on one side; A door panel is rotatably connected to the box body, and the door panel is used to open or close the opening, forming a gap space between the door panel and the box body; A sealing assembly includes an inner sealing strip and an outer sealing strip, the inner sealing strip being connected to the housing and surrounding the opening, and the outer sealing strip being connected to the door panel; When the door panel closes the opening, it forms an interference fit with the inner sealing strip, and the outer sealing strip forms an interference fit with the housing when the door panel closes the opening, so as to seal the gap space.

2. The energy storage container according to claim 1, characterized in that, The inner edge of the door panel has a first corner portion that bends toward the outer side of the door panel, and the inner sealing strip is configured to deform along the contour of the first corner portion under the support of the first corner portion to fit the first corner portion.

3. The energy storage container according to claim 1, characterized in that, The outer edge of the door panel has a second corner portion that bends toward the inner side of the door panel, and the outer sealing strip is connected to the side wall of the door panel and fits along the second corner portion.

4. The energy storage container according to claim 3, characterized in that, The outer sealing strip includes a first fitting part and a second fitting part. The second fitting part is connected to one end of the first fitting part near the outside of the door panel and is bent relative to the first fitting part. The first fitting part is fitted to the edge of the door panel, and the second fitting part is fitted to the second corner part.

5. The energy storage container according to claim 4, characterized in that, The outer sealing strip also includes a deformable portion, which is located within the gap space and connected to one end of the first fitting portion near the inner side of the door panel. The deformable portion bends relative to the first fitting portion toward the housing so as to abut against the housing when the door panel closes the opening.

6. The energy storage container according to claim 5, characterized in that, The deformable portion is configured as an arc-shaped structure that bends outward toward the door panel.

7. The energy storage container according to claim 5, characterized in that, The outer sealing strip also includes an overlapping portion, which is located outside the gap space and connected to one end of the first fitting portion away from the inner side of the door panel. The overlapping portion is bent toward the box body relative to the first fitting portion so as to abut against the box body when the door panel closes the opening.

8. The energy storage container according to claim 7, characterized in that, The distance between the two opposite ends of the deformable portion is greater than the width of the gap space and less than the distance between the two opposite ends of the overlapping portion.

9. The energy storage container according to claim 1, characterized in that, The energy storage container also includes a locking mechanism for locking or releasing the door panel to the container body, and the locking mechanism is configured to provide a clamping force to the door panel to press against the inner and outer sealing strips.

10. The energy storage container according to any one of claims 1 to 9, characterized in that, The energy storage container also includes: An energy storage unit is disposed in the receiving cavity of the housing; A fire protection system, the fire protection system including a fire circulation pipeline disposed within the receiving cavity and at least one exhaust component disposed on the fire circulation pipeline, the fire circulation pipeline being spaced around the energy storage unit; The fire-fighting circulation pipeline is used to circulate the flame-retardant medium, and the exhaust component is used to discharge the flame-retardant medium into the receiving cavity.

11. The energy storage container according to claim 10, characterized in that, The fire-fighting circulation pipeline includes a main fire-fighting pipeline and multiple branch fire-fighting pipelines connected to the main fire-fighting pipeline. All the branch fire-fighting pipelines are distributed at intervals along the length of the receiving cavity, and an energy storage area is formed between two adjacent branch fire-fighting pipelines. At least one energy storage unit is located in the energy storage area.

12. The energy storage container according to claim 11, characterized in that, The fire branch includes multiple fire branch pipes spaced apart along the width direction of the receiving cavity, all of which are connected. The fire branch pipes extend along the height direction of the receiving cavity, and multiple exhaust components spaced apart along the height direction are arranged on the fire branch pipes.

13. The energy storage container according to claim 12, characterized in that, The energy storage area includes multiple energy storage zones distributed along the height direction. Each energy storage zone is equipped with at least one energy storage unit. The exhaust device on the fire protection pipe is located on top of the energy storage unit in the corresponding energy storage zone.

14. The energy storage container according to claim 10, characterized in that, The exhaust component has at least three exhaust ports, and any two of the exhaust ports on the exhaust component are not oriented in the same direction.

15. The energy storage container according to any one of claims 1 to 9, characterized in that, The energy storage container also includes a pipeline interface assembly on the outer wall of the container. The pipeline interface assembly includes a storage box and a connecting pipe. One end of the connecting pipe is sealed through the storage box and extends into the interior of the container. The other end of the connecting pipe is located inside the storage box. The end of the connecting pipe inside the container is provided with an inner pipe interface, and the end of the connecting pipe inside the storage box is provided with an outer pipe interface.

16. The energy storage container according to any one of claims 1 to 9, characterized in that, The energy storage container also includes an electrical connection assembly disposed on the outer wall of the container. The electrical connection assembly includes an electrical connector, which is sealed through the outer wall of the container so that the two ends of the electrical connector are respectively located inside the container and outside the container.

17. The energy storage container according to claim 16, characterized in that, The electrical connection assembly further includes a first insulating member, which is embedded in the outer wall of the housing. The first insulating member has a through hole communicating with the interior of the housing. The electrical connection member passes through the through hole and is interference-fitted with the first insulating member.

18. The energy storage container according to claim 17, characterized in that, A sealing ring is provided between the first insulating component and the housing.

19. An energy storage system, characterized in that, Including the energy storage container as described in any one of claims 1 to 18.

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