Energy storage container

Abstract

The application provides an energy storage container, comprising a box body, a containing cavity is arranged in the box body, the box body comprises a door frame and a box door, the box door comprises a plurality of door plates arranged continuously along a first direction, each door plate is rotationally connected with the door frame, there is a gap between adjacent two door plates and between the door plate and the door frame, so that the rotational connection of the door plate can be realized, a fire-resistant structure is connected with the door plate or the door frame, and a projection of the fire-resistant structure on a first plane covers projections of all gaps on the first plane, so that the fire-resistant structure can cover all gaps, when a battery cluster in the energy storage container is in thermal runaway and causes a fire, the fire-resistant structure can block all gaps, the fire in the box body is prevented from passing through the gaps, the gaps are prevented from being burned through, the fire resistance of the gaps is improved, and the fire resistance of the entire energy storage container is improved.

Description

Technical Field

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

[0002] Existing energy storage containers have some fire protection features inside the container, but there are weaknesses in the fire protection design. There is no special protection for the gaps in the doors. Once the battery clusters inside the container experience thermal runaway and cause a fire, the gaps in the container doors can be easily burned through by the fire, causing the entire door to collapse, which reduces the fire resistance of the entire energy storage container. Utility Model Content

[0003] In view of this, the purpose of this application is to provide an energy storage container to solve or partially solve the problems raised in the background art.

[0004] For the purposes described above, this application provides an energy storage container, comprising:

[0005] The box body has an internal cavity. The box body includes a door frame and a door. The door includes a plurality of door panels arranged continuously along a first direction. Each door panel is rotatably connected to the door frame. There are gaps between two adjacent door panels and between the door panel and the door frame.

[0006] A fire-resistant structure is connected to the door panel or the door frame. The orthographic projection of the fire-resistant structure on a first plane covers the orthographic projection of all the gaps on the first plane, which is the plane where the cabinet door is located.

[0007] Optionally, the fire-resistant structure includes a connecting piece and a first fire-resistant layer disposed on the connecting piece. The connecting piece is connected to the door panel or the door frame. The connecting piece includes an inner side and an outer side disposed opposite to each other. The inner side is disposed close to the receiving cavity. The first fire-resistant layer is disposed on the inner side and / or the outer side. The orthographic projection of the first fire-resistant layer on the first plane covers the orthographic projection of all the gaps on the first plane.

[0008] Optionally, there is an expansion gap between the first fire-resistant layer and the door panel and / or the door frame, the expansion gap providing space to accommodate the expansion of the first fire-resistant layer.

[0009] Optionally, the door frame includes at least two first columns spaced apart along the first direction, and at least one combined door panel is provided between two adjacent first columns. Each combined door panel includes two adjacent door panels, which are a first door panel and a second door panel, respectively. The connecting piece is a first connecting piece, which is located between the first door panel and the second door panel. The first connecting piece is connected to the first door panel, and there is a third gap between the first connecting piece and the second door panel.

[0010] Optionally, the first connecting piece includes a first sub-connecting piece, a second sub-connecting piece, and a third sub-connecting piece. The first sub-connecting piece is connected to the first door panel. The first sub-connecting piece is connected to the third sub-connecting piece through the second sub-connecting piece. The second sub-connecting piece is provided with the first fire-resistant layer. There is a third gap between the third sub-connecting piece and the second door panel.

[0011] Optionally, the gap between the first door panel and the second door panel is the first gap, and the fire-resistant structure further includes a second fire-resistant layer located within the first gap. The second fire-resistant layer is connected to the second door panel, and the orthographic projection of the second fire-resistant layer on the second plane covers the orthographic projection of the third gap on the second plane. The second plane is the plane where the third sub-connecting piece is located.

[0012] Optionally, the connecting piece is a second connecting piece, which is located between the door panel and the door frame, is connected to the door frame, and has a fourth gap between the second connecting piece and the door panel.

[0013] Optionally, the second connecting piece includes a fourth sub-connecting piece, a fifth sub-connecting piece, and a sixth sub-connecting piece. The fourth sub-connecting piece is connected to the door frame. The fourth sub-connecting piece is connected to the sixth sub-connecting piece through the fifth sub-connecting piece. The fifth sub-connecting piece is provided with the first fire-resistant layer. The sixth sub-connecting piece has the fourth gap with the door panel.

[0014] Optionally, the gap between the door panel and the door frame is a second gap, and the fire-resistant structure further includes a third fire-resistant layer, which is located within the second gap and connected to the door panel. The orthographic projection of the third fire-resistant layer on the third plane covers the orthographic projection of the fourth gap on the third plane, and the third plane is the plane where the sixth sub-connecting piece is located.

[0015] Optionally, the door frame includes at least two first columns spaced apart along the first direction, and a top beam and a bottom beam respectively connected to the two ends of the at least two first columns. The second connecting piece is provided between the door panel and the top beam, between the door panel and the bottom beam, and between the door panel and the first column.

[0016] Optionally, the box body further includes a plurality of second columns, and side panels are provided between two adjacent second columns and between the first column and the second column. The side panels and the box door enclose the receiving cavity, and the side panels and / or the box door are filled with a first heat insulation layer.

[0017] And / or, the side panel and / or the cabinet door both include an inner panel and an outer panel, the inner panel being disposed close to the receiving cavity, and the side of the inner panel close to the receiving cavity and / or the side of the outer panel away from the receiving cavity being provided with a second heat insulation layer.

[0018] Optionally, both the first column and the second column are hollow structures, and the hollow structure of the first column and / or the second column is filled with a third heat insulation layer.

[0019] And / or, the first column is provided with a fourth heat insulation layer on the side near the receiving cavity and / or on the side away from the receiving cavity;

[0020] And / or, the second column is provided with a fifth heat insulation layer on the side near the receiving cavity and / or on the side away from the receiving cavity.

[0021] Optionally, the first fire-resistant layer, the first heat insulation layer, the second heat insulation layer, the third heat insulation layer, the fourth heat insulation layer and / or the fifth heat insulation layer are at least one of the following: an aerogel layer, a rock wool layer, a fire-resistant expanding cotton layer and a fire-resistant silicone layer.

[0022] Optionally, it also includes a rainproof structure located within the gap, on the side of the refractory structure away from the receiving cavity.

[0023] As can be seen from the above, the energy storage container provided in this application includes a container body with an internal cavity. The container body includes a door frame and a door. The door includes multiple door panels arranged continuously along a first direction. Each door panel is rotatably connected to the door frame. There are gaps between adjacent door panels and between the door panel and the door frame to ensure that the rotatable connection of the door panels can be realized. A fire-resistant structure is connected to the door panel or the door frame. The orthographic projection of the fire-resistant structure on the first plane covers the orthographic projection of all gaps on the first plane. In this way, the fire-resistant structure can cover all gaps. Thus, when the battery cluster inside the energy storage container experiences thermal runaway and causes a fire, the fire-resistant structure can block all gaps, preventing the fire inside the container from passing through the gaps, thereby preventing the gaps from being burned through by the fire, improving the fire resistance of the gaps, and thus improving the fire resistance of the entire energy storage container. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 An explosion diagram of an energy storage container according to an embodiment of this application is shown;

[0026] Figure 2 A schematic diagram of the door frame structure according to an embodiment of this application is shown;

[0027] Figure 3 A front view of an energy storage container according to an embodiment of this application is shown;

[0028] Figure 4 It shows Figure 3 A magnified view of a portion of the gap between two adjacent door panels in section AA;

[0029] Figure 5 It shows Figure 3 A partially enlarged schematic diagram of the door panel and the first column in section AA, as well as the 200mm gap between the door panel and the first column;

[0030] Figure 6 It shows Figure 3 A partially enlarged schematic diagram of the door panel and top beam in the middle BB section, as well as the 200mm gap between the door panel and top beam;

[0031] Figure 7 This is a partial cross-sectional schematic diagram of the side plate in an embodiment of this application.

[0032] In the diagram: 100, Box body; 110, Door frame; 111, First column; 112, Top beam; 113, Bottom beam; 120, Box door; 121, Combined door panel; 1211, Door panel; 1211a, First door panel; 1211b, Second door panel; 130, Receiving cavity; 140, Side panel; 141, Outer panel; 142, Inner panel; 143, First insulation layer; 150, Second column; 160, Top panel; 170, Bottom panel;

[0033] 200, Gap; 200a, First Gap; 200b, Second Gap; 300, Fire-resistant Structure; 310, Connecting Piece; 310a, First Connecting Piece; 310b, Second Connecting Piece; 311, First Sub-Connecting Piece; 312, Second Sub-Connecting Piece; 313, Third Sub-Connecting Piece; 314, Fourth Sub-Connecting Piece; 315, Fifth Sub-Connecting Piece; 316, Sixth Sub-Connecting Piece; 317, Inner Side; 318, Outer Side; 320, First Fire-resistant Layer; 330, Third Gap; 340, Second Fire-resistant Layer; 350, Expansion Gap; 360, Fourth Gap; 370, Third Fire-resistant Layer; 400, Rainproof Structure; 500, Second Insulation Layer; 600, Third Insulation Layer; 700, Fourth Insulation Layer; 800, Fifth Insulation Layer. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0035] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] With the rapid development of technology, electricity has become an indispensable energy source in people's production and daily life. To improve the smoothness of electricity supply and ensure the normal operation of production and daily life, energy storage devices are needed. As devices that cyclically store and release electrical energy, energy storage devices store electrical energy or supply the stored energy to electrical devices through charging or discharging. Energy storage devices are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0037] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage power stations can store electrical energy during off-peak hours and provide power to users or electrical equipment during peak hours. Wind power generation systems collect wind energy from wind turbines, convert it into electricity, and then store it in energy storage devices. Solar power generation systems convert solar energy into electricity, store it in energy storage devices, and supply it to users as needed. Mobile power systems can power equipment in areas inaccessible by the mains grid, such as remote mountainous areas and isolated wilderness areas. Temporary power supply systems can provide power to users when there is insufficient electricity.

[0038] Containerized energy storage system (referred to as "energy storage container") is a new type of energy storage device. The energy storage container is an integrated and modular energy storage solution that integrates core components such as battery packs, battery management systems, energy conversion systems, temperature control systems, and fire protection systems into a standardized container to realize the storage and dispatch of electrical energy.

[0039] Its core components include at least:

[0040] Battery clusters (also known as "battery packs") typically use lithium-ion batteries (such as lithium iron phosphate), lead-acid batteries, or flow batteries, with energy density, lifespan, and cost selected according to requirements.

[0041] Battery Management System: Monitors battery status (voltage, temperature, remaining charge, etc.) to ensure safe operation and prevent overcharging / over-discharging.

[0042] Energy conversion system: Enables bidirectional conversion between DC (battery) and AC (grid), and supports charge and discharge control.

[0043] Temperature control system: Air conditioning or liquid cooling device to maintain the battery within the optimal operating temperature range (e.g., 15-30°C).

[0044] Fire protection system: Enables gas extinguishing (such as heptafluoropropane) or liquid extinguishing, smoke detection, etc., to ensure fire safety.

[0045] Battery clusters generate significant heat during operation, posing a risk of thermal runaway. If thermal runaway occurs and is not effectively contained, the battery clusters can ignite, potentially igniting the entire energy storage container. Therefore, fire resistance is a crucial factor for energy storage containers, directly impacting their operational safety.

[0046] However, the inventors discovered that existing energy storage containers generally only incorporate some fire-resistant design elements into the interior of the container, but these designs have significant weaknesses. For example, there is no specific protection for the door gaps, making these gaps vulnerable to fire. If the battery clusters inside the container experience thermal runaway and cause a fire, the lack of any protective measures at the container door gaps makes them extremely susceptible to being burned through, leading to the collapse of the entire door and thus reducing the overall fire resistance of the energy storage container.

[0047] Therefore, improving the fire resistance of energy storage containers is an urgent problem to be solved.

[0048] Based on this, this application provides an energy storage container.

[0049] Figure 1 An explosion diagram of an energy storage container according to an embodiment of this application is shown. Figure 2 A schematic diagram of the structure of the door frame 110 according to an embodiment of this application is shown. Figure 3 A front view of an energy storage container according to an embodiment of this application is shown; Figure 4 It shows Figure 3 A magnified view of the area between two adjacent door panels 1211 and the gap 200 between door panels 1211 in section AA.

[0050] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the energy storage container includes a container body 100, with an internal cavity 130. The container body 100 includes a door frame 110 and a door 120. The door 120 includes multiple door panels 1211 arranged continuously along a first direction. Each door panel 1211 is rotatably connected to the door frame 110. There are gaps 200 between adjacent door panels 1211 and between door panels 1211 and the door frame 110. A fire-resistant structure 300 is connected to the door panels 1211 or the door frame 110. The orthographic projection of the fire-resistant structure 300 on a first plane covers the orthographic projection of all gaps 200 on the first plane, which is the plane where the door 120 is located.

[0051] Specifically, the housing 100 has a receiving cavity 130 inside, which is used to receive at least one battery cluster, the battery cluster including multiple stacked battery packs.

[0052] The enclosure 100 includes a door frame 110 and a door 120, with the door 120 located on one side of the door frame 110. The door 120 includes features along a first direction (i.e.,...) Figure 1 Multiple door panels 1211 arranged continuously in the direction shown in the middle (X) are rotatably connected to the door frame 110, so that the door panel 1211 can rotate relative to the door frame 110, thereby realizing the opening and closing of the door panel 1211.

[0053] Since the door panel 1211 needs to rotate, and rotation requires a certain amount of space, the connection between door panels 1211 and between door panels 1211 and door frame 110 cannot be a tight connection without gaps. There are gaps of 200 between two adjacent door panels 1211 and between door panels 1211 and door frame 110, so that the door panel 1211 can rotate.

[0054] The fire-resistant structure 300 is connected to the door panel 1211 or the door frame 110, and the fire-resistant structure 300 is on the first plane (i.e. Figure 1 The orthographic projection on the plane shown in M ​​covers the orthographic projection of all gaps 200 on the first plane. Thus, the fire-resistant structure 300 can cover all gaps 200. In the event of a fire caused by thermal runaway of the battery clusters inside the energy storage container, the fire-resistant structure 300 can block all gaps 200, preventing the fire inside the container 100 from passing through the gaps 200, thereby preventing the gaps 200 from being burned through by the fire, improving the fire resistance of the gaps 200, and thus improving the fire resistance of the entire energy storage container.

[0055] Furthermore, at least a portion of the fire-resistant structure 300 is made of a fire-resistant material. For example, the fire-resistant material may include at least one of aerogel, rock wool, fire-resistant expanding cotton, and fire-resistant silicone. Thus, the fire-resistant structure 300 has good fire resistance. In the event of a fire caused by thermal runaway of the battery cluster inside the energy storage container, the high fire resistance of the fire-resistant structure 300 can play a certain role in blocking the fire, thereby further improving the fire resistance at the gap 200.

[0056] In some embodiments, see continue to see Figure 1 , Figure 2 and Figure 4 As shown, the fire-resistant structure 300 includes a connecting piece 310 and a first fire-resistant layer 320 disposed on the connecting piece 310. The connecting piece 310 is connected to the door panel 1211 or the door frame 110. The connecting piece 310 includes an inner side 317 and an outer side 318 disposed opposite to each other. The inner side 317 is disposed close to the receiving cavity 130. The first fire-resistant layer 320 is disposed on the inner side 317 and / or the outer side 318. The orthographic projection of the first fire-resistant layer 320 on the first plane covers the orthographic projection of all gaps 200 on the first plane.

[0057] Specifically, the fire-resistant structure 300 includes a connecting piece 310 and a first fire-resistant layer 320 disposed on the connecting piece 310. The connecting piece 310 is connected to the door panel 1211 or the door frame 110, serving as a connection and fixation function. For example, the connecting piece 310 can be made of metal material to improve the stability of the connection.

[0058] The specific connection position of the connecting piece 310 differs depending on the location of the fire-resistant structure 300 within different gaps 200. For example, when the fire-resistant structure 300 is located within the gap 200 between two door panels 1211, the connecting piece 310 connects to one of the door panels 1211, thus fixing the fire-resistant structure 300 without restricting the rotation of the two door panels 1211. When the fire-resistant structure 300 is located within the gap 200 between the door panel 1211 and the door frame 110, the connecting piece 310 preferentially connects to the door frame 110 to ensure that the rotation of the door panel 1211 is not restricted.

[0059] The connecting piece 310 includes an inner side 317 and an outer side 318 disposed opposite to each other. The inner side 317 is disposed close to the receiving cavity 130. A first fire-resistant layer 320 is disposed on the inner side 317 and / or the outer side 318. Exemplarily, the first fire-resistant layer 320 may be disposed only on the inner side 317, or only on the outer side 318, or simultaneously on both the inner side 317 and the outer side 318. The fire resistance performance is optimal when the first fire-resistant layer 320 is disposed on both the inner side 317 and the outer side 318.

[0060] The first fire-resistant layer 320, when projected onto the first plane, covers all gaps 200. Thus, the first fire-resistant layer 320 can cover all gaps 200. In the event of a fire caused by thermal runaway of the battery clusters inside the energy storage container, the first fire-resistant layer 320 can block all gaps 200, preventing fire inside the container 100 from escaping through the gaps and thus preventing the gaps 200 from being burned through. This improves the fire resistance of the gaps 200 and, consequently, the fire resistance of the entire energy storage container.

[0061] Furthermore, the first refractory layer 320 is made of refractory material. For example, the refractory material may include at least one of aerogel, rock wool, fire-resistant expanding cotton and fire-resistant silicone, so that the first refractory layer 320 has good fire resistance performance and can further improve the fire resistance performance at the gap 200.

[0062] In some embodiments, see continue to see Figure 4 As shown, there is an expansion gap 350 between the first fire-resistant layer 320 and the door panel 1211 and / or the door frame 110, and the expansion gap 350 provides space to accommodate the expansion of the first fire-resistant layer 320.

[0063] Specifically, when a fire occurs due to thermal runaway of the battery clusters inside the energy storage container, the fire will increase the temperature of the fire-resistant structure 300. When the first fire-resistant layer 320 is made of an intumescent refractory material, the increase in temperature of the fire-resistant structure 300 will cause the first fire-resistant layer 320 to expand. The expansion gap 350 can provide space to accommodate the expansion of the first fire-resistant layer 320. In this way, the expanded first fire-resistant layer 320 can almost fill the expansion gap 350, thereby eliminating the gap 200 between the first fire-resistant layer 320 and the door panel 1211 and / or door frame 110. This ensures that the internal flames will not escape through the gap 200, improving the fire resistance performance at the gap 200.

[0064] If the collision gap 200 is not provided, there will be no space to accommodate the expansion of the first fire-resistant layer 320. The door panel 1211 or the door frame 110 will restrict the expansion of the first fire-resistant layer 320, which will have an adverse effect on the fire resistance performance of the first fire-resistant layer 320.

[0065] In some embodiments, see continue to see Figure 1 and Figure 4 As shown, the door frame 110 includes at least two first columns 111 spaced apart along a first direction. At least one combined door panel 121 is provided between two adjacent first columns 111. Each combined door panel 121 includes two adjacent door panels 1211, which are respectively a first door panel 1211a and a second door panel 1211b. The connecting piece 310 is a first connecting piece 310a, which is located between the first door panel 1211a and the second door panel 1211b. The first connecting piece 310a is connected to the first door panel 1211a, and there is a third gap 330 between the first connecting piece 310a and the second door panel 1211b.

[0066] Specifically, at least one combined door panel 121 is provided between two adjacent first pillars 111, such as Figure 1 As shown, a combined door panel 121 is provided between two adjacent first pillars 111. Of course, two or more combined door panels 121 can also be provided between two adjacent first pillars 111.

[0067] For each assembled door panel 121, the two door panels 1211 within the same assembled door panel 121 are respectively the first door panel 1211a and the second door panel 1211b. The first connecting piece 310a is located within the gap 200 between the first door panel 1211a and the second door panel 1211b. The first connecting piece 310a is connected to one of the door panels 1211 in the assembled door panel 121, so that the fire-resistant structure 300 can be connected to one of the door panels 1211, ensuring the connection of the fire-resistant structure 300. For example, the first connecting piece 310a is connected to the first door panel 1211a. It is worth noting that the connection between the fire-resistant structure 300 and the first door panel 1211a does not affect the rotation of the first door panel 1211a.

[0068] The first connecting piece 310a is not connected to the other door panel 1211 in the combined door panel 121. For example, there is a third gap 330 between the first connecting piece 310a and the second door panel 1211b, ensuring that the installation of the fire-resistant structure 300 will not affect the rotation of the second door panel 1211b.

[0069] In some embodiments, see continue to see Figure 4 As shown, the first connecting piece 310a includes a first sub-connecting piece 311, a second sub-connecting piece 312, and a third sub-connecting piece 313. The first sub-connecting piece 311 is connected to the first door panel 1211a. The first sub-connecting piece 311 is connected to the third sub-connecting piece 313 through the second sub-connecting piece 312. The second sub-connecting piece 312 is provided with a first fire-resistant layer 320. There is a third gap 330 between the third sub-connecting piece 313 and the second door panel 1211b.

[0070] Specifically, the first connecting piece 310a includes a first sub-connecting piece 311, a second sub-connecting piece 312, and a third sub-connecting piece 313. One end of the first sub-connecting piece 311 is connected to the first door panel 1211a, and the other end of the first sub-connecting piece 311 extends away from the first door panel 1211a and connects to one end of the second sub-connecting piece 312. The other end of the second sub-connecting piece 312 extends along a first direction (i.e., Figure 4 The first sub-connecting piece 310a extends in the direction shown by X and connects to one end of the third sub-connecting piece 313. The other end of the third sub-connecting piece 313 extends towards the direction close to the second door panel 1211b. Thus, the area formed by the first sub-connecting piece 311, the second sub-connecting piece 312, and the third sub-connecting piece 313 protrudes away from the door panel 1211. By setting this area in this way, on the one hand, it is convenient to install the first fire-resistant layer 320, and on the other hand, it also reserves space for the expansion of the first fire-resistant layer 320, so as to give full play to the expansion effect of the first fire-resistant layer 320. At the same time, it can also ensure that the setting of the first connecting piece 310a will not affect the rotation of the first door panel 1211a, thus providing space for the rotation of the first door panel 1211a.

[0071] There is a third gap 330 between the third sub-connecting piece 313 and the second door panel 1211b. The setting of the third gap 330 ensures that the setting of the third sub-connecting piece 313 and the entire first connecting piece 310a will not affect the rotation of the second door panel 1211b, and provides space for the rotation of the second door panel 1211b.

[0072] In some embodiments, see continue to see Figure 4 As shown, the gap 200 between the first door panel 1211a and the second door panel 1211b is the first gap 200a. The fire-resistant structure 300 also includes a second fire-resistant layer 340, which is located within the first gap 200a. The second fire-resistant layer 340 is connected to the second door panel 1211b. The orthographic projection of the second fire-resistant layer 340 on the second plane covers the orthographic projection of the third gap 330 on the second plane. The second plane is the plane where the third sub-connecting piece 313 is located.

[0073] Specifically, the second fire-resistant layer 340 is located within the first gap 200a. Thus, the second fire-resistant layer 340 can further block and protect the first gap 200a, thereby improving the fire resistance performance at the first gap 200a.

[0074] The second fire-resistant layer 340 is connected to the second door panel 1211b. The orthographic projection of the second fire-resistant layer 340 on the second plane covers the orthographic projection of the third gap 330 on the second plane (i.e. the plane where the third sub-connecting piece 313 is located). In this way, the second fire-resistant layer 340 can block the third gap 330.

[0075] The combined use of the first fire-resistant layer 320 and the second fire-resistant layer 340 can block the entire area of ​​the first gap 200a near the interior of the container 100. In the event of a fire caused by thermal runaway of the battery clusters inside the energy storage container, the first fire-resistant layer 320 and the second fire-resistant layer 340 can block the entire inner area of ​​the first gap 200a from the inside, ensuring that the fire inside the container 100 will not escape through the third gap 330, thereby preventing the third gap 330 from being burned through by the fire, improving the fire resistance of the third gap 330, and thus improving the fire resistance of the entire energy storage container.

[0076] Figure 5 It shows Figure 3 A partially enlarged schematic diagram of the gap 200 between the door panel 1211 and the first column 111 in the middle AA section; Figure 6 It shows Figure 3 A partially enlarged schematic diagram of the door panel 1211 and the top beam 112 in the middle BB section, as well as the gap 200 between the door panel 1211 and the top beam 112.

[0077] In some embodiments, see Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the connecting piece 310 is the second connecting piece 310b. The second connecting piece 310b is located between the door panel 1211 and the door frame 110. The second connecting piece 310b is connected to the door frame 110. There is a fourth gap 360 between the second connecting piece 310b and the door panel 1211.

[0078] Specifically, the door frame 110 includes a first direction (i.e., Figure 1 At least two first columns 111 are spaced apart (in the direction shown by X), and a top beam 112 and a bottom beam 113 are respectively connected to the two ends of the at least two first columns 111. A second connecting piece 310b is provided between the door panel 1211 and the top beam 112, between the door panel 1211 and the bottom beam 113, and between the door panel 1211 and the first column 111. That is, a fire-resistant structure 300 is provided between the door panel 1211 and the top beam 112, between the door panel 1211 and the bottom beam 113, and between the door panel 1211 and the first column 111. This ensures that a fire-resistant structure 300 is provided in all gaps 200 between the door panel 1211 and the door frame 110, and ensures that the fire-resistant structure 300 blocks and protects all gaps 200.

[0079] The second connecting piece 310b is connected to the door frame 110, and there is a fourth gap 360 between the second connecting piece 310b and the door panel 1211. Thus, the setting of the second connecting piece 310b can ensure the connection of the fire-resistant structure 300 without affecting the rotation of the door panel 1211.

[0080] In some embodiments, see continue to see Figure 5 and Figure 6 As shown, the second connecting piece 310b includes a fourth sub-connecting piece 314, a fifth sub-connecting piece 315, and a sixth sub-connecting piece 316. The fourth sub-connecting piece 314 is connected to the door frame 110. The fourth sub-connecting piece 314 is connected to the sixth sub-connecting piece 316 through the fifth sub-connecting piece 315. The fifth sub-connecting piece 315 is provided with a first fire-resistant layer 320. There is a fourth gap 360 between the sixth sub-connecting piece 316 and the door panel 1211.

[0081] Specifically, the second connecting piece 310b includes a fourth sub-connecting piece 314, a fifth sub-connecting piece 315, and a sixth sub-connecting piece 316. The fourth sub-connecting piece 314 is connected to both the door frame 110 and the fifth sub-connecting piece 315. The fifth sub-connecting piece 315 is connected along a first direction (i.e., Figure 5 Extending in the direction shown by X in the middle, so that the first fire-resistant layer 320 provided on the fifth sub-connecting piece 315 can cover the gap 200 between the door panel 1211 and the door frame 110.

[0082] In addition, the ends of the fourth sub-connecting piece 314 and the fifth sub-connecting piece 315 protrude from the door panel 1211, thus creating a certain gap between the fifth sub-connecting piece 315 and the door panel 1211. This gap facilitates the installation of the first fire-resistant layer 320 and provides space for the expansion of the first fire-resistant layer 320, allowing the expansion effect of the first fire-resistant layer 320 to be fully utilized. At the same time, it also ensures that the setting of the second connecting piece 310b will not affect the rotation of the door panel 1211, providing space for the rotation of the door panel 1211.

[0083] One end of the sixth sub-connecting piece 316 is connected to the fifth sub-connecting piece 315, and the other end of the sixth sub-connecting piece 316 extends toward the door panel 1211 and has a fourth gap 360 between it and the door panel 1211. The setting of the fourth gap 360 ensures that the setting of the sixth sub-connecting piece 316 and the entire second connecting piece 310b will not affect the rotation of the door panel 1211, and provides space for the rotation of the door panel 1211.

[0084] In some embodiments, the gap 200 between the door panel 1211 and the door frame 110 is a second gap 200b. The fire-resistant structure 300 also includes a third fire-resistant layer 370, which is located within the second gap 200b. The third fire-resistant layer 370 is connected to the door panel 1211. The orthographic projection of the third fire-resistant layer 370 on the third plane covers the orthographic projection of the fourth gap 360 on the third plane. The third plane is the plane where the sixth sub-connecting piece 316 is located.

[0085] Specifically, the third fire-resistant layer 370 is located within the second gap 200b. Thus, the setting of the third fire-resistant layer 370 can further block and protect the second gap 200b, and improve the fire resistance performance at the first gap 200a.

[0086] The third fire-resistant layer 370 is connected to the door panel 1211. The orthographic projection of the third fire-resistant layer 370 on the third plane covers the orthographic projection of the fourth gap 360 on the third plane (i.e. the plane where the sixth sub-connecting piece 316 is located). In this way, the third fire-resistant layer 370 can block the second gap 200b.

[0087] The combined use of the first fire-resistant layer 320 and the third fire-resistant layer 370 can block the entire area of ​​the second gap 200b near the interior of the container 100. In the event of a fire caused by thermal runaway of the battery clusters inside the energy storage container, the first fire-resistant layer 320 and the third fire-resistant layer 370 can block the entire inner area of ​​the second gap 200b from the inside, ensuring that the fire inside the container 100 will not escape through the second gap 200b, thereby preventing the second gap 200b from being burned through by the fire, improving the fire resistance of the second gap 200b, and thus improving the fire resistance of the entire energy storage container.

[0088] Figure 7 This is a partial cross-sectional schematic diagram of the side plate 140 in an embodiment of this application.

[0089] In some embodiments, see Figure 1 and Figure 7 As shown, the container 100 also includes a plurality of second columns 150. Side panels 140 are provided between two adjacent second columns 150 and between the first column 111 and the second column 150. The side panels 140 and the container door 120 together form a receiving cavity 130. The side panels 140 and / or the container door 120 are filled with a first heat insulation layer 143. Thus, the provision of the first heat insulation layer 143 improves the fire resistance of the side panels 140 and the interior of the container door 120, thereby improving the fire resistance of the entire energy storage container.

[0090] Furthermore, the enclosure 100 also includes a top plate 160 and a bottom plate 170. The top plate 160, bottom plate 170, multiple side plates 140, and enclosure door 120 together form a receiving cavity 130. The top plate 160 is provided with a top heat insulation layer (not shown in the figure) on the side near the receiving cavity 130 and / or the side away from the receiving cavity 130 to improve the fire resistance performance of the top plate 160. The bottom plate 170 is provided with a bottom heat insulation layer (not shown in the figure) on the side near the receiving cavity 130 and / or the side away from the receiving cavity 130 to improve the fire resistance performance of the bottom plate 170.

[0091] In some embodiments, the side panel 140 and / or the door 120 each include an inner panel 142 and an outer panel 141. The inner panel 142 is disposed near the receiving cavity 130. A second heat insulation layer 500 is provided on the side of the inner panel 142 near the receiving cavity 130 and / or on the side of the outer panel 141 away from the receiving cavity 130. Thus, the provision of the second heat insulation layer 500 further improves the fire resistance of the side panel 140 and the side of the door 120 near the receiving cavity 130 and away from the receiving cavity 130.

[0092] The combined use of the first insulation layer 143 and the second insulation layer 500 improves the fire resistance of the interior of the side panel 140 and the door 120, the side near the cavity 130 and the side away from the cavity 130, thereby enhancing the fire resistance of the entire energy storage container.

[0093] In some embodiments, continuing to refer to the figures, both the first column 111 and the second column 150 are hollow structures, and the hollow structures of the first column 111 and / or the second column 150 are filled with a third heat insulation layer 600. Thus, the provision of the third heat insulation layer 600 improves the fire resistance of the interior of the first column 111 and the second column 150, thereby improving the fire resistance of the entire energy storage container.

[0094] A fourth heat insulation layer 700 is provided on the side of the first column 111 near the receiving cavity 130 and / or on the side away from the receiving cavity 130. Thus, the provision of the fourth heat insulation layer 700 further improves the fire resistance performance of the side of the first column 111 near the receiving cavity 130 and the side away from the receiving cavity 130.

[0095] The second column 150 is provided with a fifth heat insulation layer 800 on the side near the receiving cavity 130 and / or the side away from the receiving cavity 130. Thus, the provision of the fifth heat insulation layer 800 further improves the fire resistance performance of the side of the second column 150 near the receiving cavity 130 and the side away from the receiving cavity 130.

[0096] The combined use of the third insulation layer 600, the fourth insulation layer 700 and the fifth insulation layer 800 improves the fire resistance of the interior of the first column 111 and the second column 150, the side near the receiving cavity 130 and the side away from the receiving cavity 130.

[0097] The combined use of the first insulation layer 143, the second insulation layer 500, the third insulation layer 600, the fourth insulation layer 700, the fifth insulation layer 800, the top insulation layer, and the bottom insulation layer can improve the fire resistance of all side panels 140, doors 120, the first column 111, the second column 150, the top plate 160, and the bottom plate 170 of the entire energy storage container. The fire-resistant structure 300 set in each gap 200 can improve the fire resistance at each gap 200. In this way, all parts of the entire energy storage container have been fire-resistant treated, so that there are no weak points in the fire resistance of the entire energy storage container, which improves the overall rigidity of the energy storage container and ensures that the container will not collapse due to some weak links in the event of thermal runaway, effectively protecting personnel safety.

[0098] In some embodiments, the first refractory layer 320, the second refractory layer 340, the third refractory layer 370, the first heat insulation layer 143, the second heat insulation layer 500, the third heat insulation layer 600, the fourth heat insulation layer 700, the fifth heat insulation layer 800, the top heat insulation layer and / or the bottom heat insulation layer are at least one of aerogel layer, rock wool layer, fireproof expansion cotton layer and fireproof silicone layer. In actual use, different refractory materials can be selected based on different actual needs.

[0099] In some embodiments, see continue to see Figure 4 , Figure 5 and Figure 6It also includes a rainproof structure 400, which is located within the gap 200 and on the side of the fire-resistant structure 300 away from the receiving cavity 130. In this way, the rainproof structure 400 can block and seal the gap 200 from the outside, preventing rainwater and other substances from entering through the gap 200 and affecting the performance of the fire-resistant structure 300 and the battery clusters inside the box 100.

[0100] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this application as described above, which are not provided in the details for the sake of brevity.

[0101] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy storage container, characterized in that, include: The box body has an internal cavity. The box body includes a door frame and a door. The door includes a plurality of door panels arranged continuously along a first direction. Each door panel is rotatably connected to the door frame. There are gaps between two adjacent door panels and between the door panel and the door frame. A fire-resistant structure is connected to the door panel or the door frame. The orthographic projection of the fire-resistant structure on a first plane covers the orthographic projection of all the gaps on the first plane, which is the plane where the cabinet door is located.

2. The energy storage container according to claim 1, characterized in that, The fire-resistant structure includes a connecting piece and a first fire-resistant layer disposed on the connecting piece. The connecting piece is connected to the door panel or the door frame. The connecting piece includes an inner side and an outer side disposed opposite to each other. The inner side is disposed close to the receiving cavity. The first fire-resistant layer is disposed on the inner side and / or the outer side. The orthographic projection of the first fire-resistant layer on the first plane covers the orthographic projection of all the gaps on the first plane.

3. The energy storage container according to claim 2, characterized in that, There are expansion gaps between the first fire-resistant layer and the door panel and / or the door frame, and the expansion gaps provide space to accommodate the expansion of the first fire-resistant layer.

4. The energy storage container according to claim 3, characterized in that, The door frame includes at least two first columns spaced apart along the first direction. At least one combined door panel is provided between two adjacent first columns. Each combined door panel includes two adjacent door panels, which are a first door panel and a second door panel, respectively. The connecting piece is a first connecting piece, which is located between the first door panel and the second door panel. The first connecting piece is connected to the first door panel, and there is a third gap between the first connecting piece and the second door panel.

5. The energy storage container according to claim 4, characterized in that, The first connecting piece includes a first sub-connecting piece, a second sub-connecting piece, and a third sub-connecting piece. The first sub-connecting piece is connected to the first door panel. The first sub-connecting piece is connected to the third sub-connecting piece through the second sub-connecting piece. The second sub-connecting piece is provided with the first fire-resistant layer. There is a third gap between the third sub-connecting piece and the second door panel.

6. The energy storage container according to claim 5, characterized in that, The gap between the first door panel and the second door panel is the first gap. The fire-resistant structure also includes a second fire-resistant layer, which is located within the first gap. The second fire-resistant layer is connected to the second door panel. The orthographic projection of the second fire-resistant layer on the second plane covers the orthographic projection of the third gap on the second plane. The second plane is the plane where the third sub-connecting piece is located.

7. The energy storage container according to claim 3, characterized in that, The connecting piece is a second connecting piece, which is located between the door panel and the door frame. The second connecting piece is connected to the door frame, and there is a fourth gap between the second connecting piece and the door panel.

8. The energy storage container according to claim 7, characterized in that, The second connecting piece includes a fourth sub-connecting piece, a fifth sub-connecting piece, and a sixth sub-connecting piece. The fourth sub-connecting piece is connected to the door frame. The fourth sub-connecting piece is connected to the sixth sub-connecting piece through the fifth sub-connecting piece. The fifth sub-connecting piece is provided with the first fire-resistant layer. There is a fourth gap between the sixth sub-connecting piece and the door panel.

9. The energy storage container according to claim 8, characterized in that, The gap between the door panel and the door frame is the second gap. The fire-resistant structure also includes a third fire-resistant layer, which is located within the second gap and is connected to the door panel. The orthographic projection of the third fire-resistant layer on the third plane covers the orthographic projection of the fourth gap on the third plane. The third plane is the plane where the sixth sub-connecting piece is located.

10. The energy storage container according to claim 7, characterized in that, The door frame includes at least two first columns spaced apart along the first direction, and a top beam and a bottom beam respectively connected to the two ends of the at least two first columns. The second connecting piece is provided between the door panel and the top beam, between the door panel and the bottom beam, and between the door panel and the first column.

11. The energy storage container according to claim 10, characterized in that, The enclosure also includes a plurality of second columns, and side panels are provided between two adjacent second columns and between the first column and the second column. The side panels and the enclosure door together form the receiving cavity, and the side panels and / or the enclosure door are filled with a first heat insulation layer. And / or, the side panel and / or the cabinet door both include an inner panel and an outer panel, the inner panel being disposed close to the receiving cavity, and the side of the inner panel close to the receiving cavity and / or the side of the outer panel away from the receiving cavity being provided with a second heat insulation layer.

12. The energy storage container according to claim 11, characterized in that, Both the first column and the second column are hollow structures, and the hollow structures of the first column and / or the second column are filled with a third heat insulation layer. And / or, the first column is provided with a fourth heat insulation layer on the side near the receiving cavity and / or on the side away from the receiving cavity; And / or, the second column is provided with a fifth heat insulation layer on the side near the receiving cavity and / or on the side away from the receiving cavity.

13. The energy storage container according to claim 12, characterized in that, The first fire-resistant layer, the first heat insulation layer, the second heat insulation layer, the third heat insulation layer, the fourth heat insulation layer and / or the fifth heat insulation layer are at least one of the following: aerogel layer, rock wool layer, fire-resistant expanding cotton layer and fire-resistant silicone layer.

14. The energy storage container according to claim 1, characterized in that, It also includes a rainproof structure located within the gap, on the side of the refractory structure away from the receiving cavity.

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