Energy storage container

Abstract

The application provides an energy storage container, comprising a box body, the box body comprises a functional cabin, the functional cabin comprises a bus fire-fighting cabin, the bus fire-fighting cabin comprises a bus cabin and a fire-fighting cabin arranged along a second direction, a battery protection unit and a busbar are arranged in the bus cabin, the busbar is connected with the battery cluster and the battery protection unit, the battery protection unit can be disconnected to protect the battery cluster, the battery safety of the energy storage container is improved, a fire-fighting storage tank is arranged in the fire-fighting cabin, the fire-fighting storage tank stores fire-fighting medium, a fire-fighting system is further arranged in the box body, the fire-fighting system is connected with the fire-fighting storage tank and the battery cluster, so that when the battery cluster is in thermal runaway, the fire-fighting system can quickly spray the fire-fighting medium into the battery cluster, the fire-fighting safety of the energy storage container is improved, meanwhile, the bus cabin and the fire-fighting cabin are arranged along the second direction, the occupation of the internal space of the box body is reduced, and the space utilization rate of the internal space of the box body 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] Energy storage containers are 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 achieve the storage and dispatch of electrical energy. Existing energy storage containers cannot simultaneously achieve both safety and energy density. 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] Based on the above objectives, this application provides an energy storage container, comprising: a container body, the container body including a plurality of energy storage compartments and functional compartments arranged continuously along a first direction, the energy storage compartments being provided with battery clusters, the functional compartments including a fire-fighting compartment, the fire-fighting compartment including a fire-fighting compartment and a fire-fighting compartment arranged along a second direction, the second direction being perpendicular to the first direction, the fire-fighting compartment being provided with a fire-fighting storage tank, the fire-fighting storage tank storing fire-fighting media;

[0005] The manifold is equipped with a battery protection unit and a busbar. The busbar is connected to both the battery cluster and the battery protection unit. The battery protection unit can be disconnected to protect the battery cluster.

[0006] The container is also equipped with a fire protection system, which is connected to both the fire storage tank and the battery cluster, and is used to spray the fire protection medium into the battery cluster.

[0007] Optionally, the battery protection unit includes a load switch and at least one thermal fuse, the thermal fuse being connected to both the load switch and the busbar.

[0008] Optionally, the functional compartment further includes an electrical compartment, and the enclosure includes a bottom plate, with the electrical compartment located on the side of the busbar fire compartment away from the bottom plate.

[0009] Optionally, the fire protection system includes a battery pack-level subsystem, which includes a main pipeline, an extension pipeline, and multiple branch pipelines. One end of the main pipeline is connected to the fire protection storage tank, and the other end of the main pipeline passes through the electrical compartment and is connected to the extension pipeline. The extension pipeline extends along the first direction and is connected to all of the multiple branch pipelines. Each of the branch pipelines is connected to a battery cluster in one of the energy storage compartments.

[0010] Optionally, each battery cluster includes multiple battery packs arranged sequentially along the height direction of the housing, each branch pipe includes a main branch pipe and multiple branch sub-pipes disposed on the main branch pipe, the main branch pipe is connected to the extension pipe, each branch sub-pipe corresponds to one battery pack, and each branch sub-pipe is provided with a spray section at one end away from the main branch pipe, the spray section extending into the corresponding battery pack.

[0011] Optionally, the fire protection system further includes a fire protection wiring harness and a fire protection control unit. The fire protection wiring harness includes a main wiring harness, an extension wiring harness, and multiple branch wiring harnesses. One end of the main wiring harness is connected to the fire protection control unit, and the other end of the main wiring harness passes through the electrical compartment and is connected to the extension wiring harness. The extension wiring harness extends along the first direction and is connected to all of the multiple branch wiring harnesses. Each of the branch wiring harnesses is connected to a battery cluster in one of the energy storage compartments.

[0012] Optionally, each battery cluster includes multiple battery packs arranged sequentially along the height direction of the housing, each branch harness includes a branch bus harness and multiple branch sub- harnesses disposed on the branch bus harness, the branch bus harness is connected to the extension harness, each branch sub- harness corresponds to one battery pack, and each branch sub- harness has a detection part at the end away from the branch bus harness, the detection part extends into the corresponding battery pack, and the detection part and the spraying part are located on the same side of the battery pack.

[0013] Optionally, the fire protection system further includes a fire protection conduit, which is sleeved on the outside of the extension harness and the plurality of branch harnesses;

[0014] And / or, the fire protection system further includes a wiring box located within the electrical compartment, through which the main wiring harness passes and connects to the extension wiring harness.

[0015] And / or, the functional compartment includes a door, the fire control unit is located on the side of the door near the functional compartment, and the door is also provided with a wiring harness box, through which the main wiring harness passes and is connected to the fire control unit.

[0016] Optionally, the housing is provided with a bottom plate and a door, the door being located near the detection unit and the spraying unit, and the extension harness and the extension pipe being located on the side of the battery cluster away from the bottom plate and near the door.

[0017] Optionally, the main pipeline includes a first pipeline, a transition pipeline, and a second pipeline. The second pipeline is located on the side of the battery cluster away from the bottom plate of the tank and is connected to the extension pipeline. One end of the first pipeline is connected to the fire-fighting storage tank, and the other end of the first pipeline passes through the electrical compartment and is connected to the second pipeline through the transition pipeline. The transition pipeline is an arc-shaped pipeline.

[0018] Optionally, the enclosure further includes a liquid cooling chamber, which is located on the same side of the energy storage chamber as the functional chamber. The liquid cooling chamber and the functional chamber are arranged along the second direction. The liquid cooling chamber is equipped with a liquid cooling component, which is used to exchange heat with the battery cluster.

[0019] As can be seen from the above, the energy storage container provided in this application includes a container body, which includes a functional compartment. The functional compartment includes a manifold fire suppression compartment, which comprises a manifold compartment and a fire suppression compartment arranged along a second direction. The manifold compartment is equipped with a battery protection unit and a busbar. The busbar is connected to both the battery cluster and the battery protection unit to enable signal transmission between the battery cluster and the external wiring harness. The battery protection unit can disconnect to protect the battery cluster, thus improving the battery safety of the energy storage container. The fire suppression compartment is equipped with a fire suppression tank containing fire suppression medium. The container body is also equipped with a fire suppression system, which is connected to both the fire suppression tank and the battery cluster. In this way, when the battery cluster experiences thermal runaway, the fire suppression system can quickly spray the fire suppression medium into the battery cluster to handle the thermal runaway and improve the fire safety of the energy storage container. At the same time, the manifold compartment and the fire suppression compartment are arranged along a second direction, which reduces the occupation of the internal space of the container, thereby improving the space utilization rate of the container and increasing the energy density of the energy storage container. Attached Figure Description

[0020] 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.

[0021] Figure 1 A schematic diagram of the structure of an energy storage container according to an embodiment of this application is shown;

[0022] Figure 2 The following is a side view of the energy storage container according to an embodiment of this application after the hatch has been removed;

[0023] Figure 3 A schematic diagram of a first partial structure of an energy storage container after the hatch of an embodiment of this application is opened is shown;

[0024] Figure 4 This illustration shows a second partial structural diagram of the energy storage container after the hatch of an embodiment of this application is opened;

[0025] Figure 5 This is a schematic diagram of the structure of the energy storage container according to an embodiment of this application after removing the container door and hatch.

[0026] Figure 6 The first top view of the energy storage container is shown after the top cover has been removed.

[0027] Figure 7 A front view of the internal structure of an energy storage compartment according to an embodiment of this application is shown;

[0028] Figure 8 A front view of a partial internal structure of an energy storage compartment according to an embodiment of this application is shown;

[0029] Figure 9 A second top view of the energy storage container according to an embodiment of this application is shown after the top cover has been removed;

[0030] Figure 10 This paper shows a side view of the energy storage container with the hatch of an embodiment of the present application opened;

[0031] Figure 11 A partial structural diagram of the energy storage container according to an embodiment of this application is shown after the top cover is removed.

[0032] In the diagram: 100, enclosure; 110, door; 120, bottom plate; 130, energy storage compartment; 140, functional compartment; 141, electrical compartment; 142, fire suppression compartment; 1421, fire suppression compartment; 14211, fire suppression tank; 1422, manifold compartment; 143, door; 150, liquid cooling compartment; 151, liquid cooling assembly; 200, battery cluster; 210, battery pack; 300, fire suppression system; 310, battery pack subsystem; 311, main pipeline; 3111, first pipeline; 3112, transition pipeline; 3113, second pipeline; 312. Extension piping; 313, branch piping; 3131, branch sub-pipes; 3132, branch main piping; 314, sprinkler unit; 320, fire protection wiring harness; 321, main wiring harness; 322, extension wiring harness; 323, branch wiring harness; 3231, branch main wiring harness; 3232, branch sub-wiring harness; 330, fire control unit; 340, detection unit; 350, fire protection conduit; 360, junction box; 370, compartment-level fire protection piping; 400, battery protection unit; 410, load switch; 420, hot fuse; 500, busbar; 600, wiring harness box. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Its core components include at least:

[0039] 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.

[0040] Battery Management System: Monitors battery status (voltage, temperature, remaining charge, etc.) to ensure safe operation and prevent overcharging / over-discharging.

[0041] Energy conversion system: Enables bidirectional conversion between DC (battery) and AC (grid), and supports charge and discharge control.

[0042] Temperature control system: Air conditioning or liquid cooling device to maintain the battery within the optimal operating temperature range (e.g., 15-30°C).

[0043] Fire protection system: Enables gas extinguishing (such as heptafluoropropane) or liquid extinguishing, smoke detection, etc., to ensure fire safety.

[0044] As mentioned earlier, the assembly of energy storage containers requires the centralized installation of core components such as battery packs, battery management systems, energy conversion systems, temperature control systems, and fire suppression systems within a standardized container. However, standardized containers typically have strict dimensional requirements, such as the standard 20-foot shipping container. With standardized container dimensions, the internal space is fixed. If the placement of components like temperature control, fire suppression, and electrical systems occupies a significant amount of internal space, the available space for accommodating the battery packs within the energy storage container will be reduced, thus lowering the container's energy density.

[0045] Some energy storage containers, in order to increase the internal space available for accommodating battery packs, have reduced or simplified some components, such as fire protection systems or electrical systems. For example, the fire protection system may only have detection components and no fire tank. Once the detection components detect thermal runaway of the battery cluster, external fire extinguishing gas or liquid is required to extinguish the fire, which may lead to inadequate suppression of thermal runaway and is detrimental to the fire safety of the energy storage container. Alternatively, in order to save assembly space, existing containers may not have battery protection components. Once a fault such as overcurrent or overheating occurs, it will directly affect the safety of the battery cluster and is detrimental to the electrical safety of the entire container.

[0046] However, if all these components are placed inside the container for the sake of safety, it will take up too much internal space, thus reducing the energy density of the container.

[0047] Therefore, how to provide an energy storage container that combines high energy density and high safety performance is an urgent problem to be solved in the industry.

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

[0049] Figure 1 A schematic diagram of the structure of an energy storage container according to an embodiment of this application is shown. Figure 2 The following is a side view of the energy storage container according to an embodiment of this application after the hatch has been removed. Figure 3 This illustration shows a first partial structural diagram of the energy storage container after the hatch of an embodiment of this application is opened. Figure 4 A second partial structural schematic diagram of the energy storage container after the hatch of an embodiment of this application is opened is shown.

[0050] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the energy storage container provided in this application includes: a container body 100, the container body 100 including components along a first direction (i.e., Figure 1 Multiple energy storage compartments 130 and functional compartments 140 are arranged continuously in the direction shown in the middle (X). The energy storage compartments 130 contain battery clusters 200. The functional compartments 140 include a fire-fighting compartment 142, which includes a fire-fighting compartment 1422 and a fire-fighting compartment 1421 arranged along a second direction perpendicular to the first direction. The fire-fighting compartment 1421 contains a fire-fighting tank 14211, which stores fire-fighting media. The fire-fighting compartment 1422 contains a battery protection unit 400 and a busbar 500. The busbar 500 is connected to both the battery clusters 200 and the battery protection unit 400. The battery protection unit 400 can be disconnected to protect the battery clusters 200. The housing 100 also contains a fire-fighting system 300, which is connected to both the fire-fighting tank 14211 and the battery clusters 200, and is used to spray fire-fighting media into the battery clusters 200.

[0051] Specifically, the functional compartment 140 includes a manifold fire suppression compartment 142, which includes a manifold compartment 1422 and a fire suppression compartment 1421 arranged along a second direction. Figure 1 The direction shown in the middle Y) and the first direction (i.e. Figure 1 The direction shown in the middle (X) is perpendicular. For example, the first direction can be the length direction of the box 100, and the second direction can be the width direction of the box 100.

[0052] The manifold 1422 is a key electrical unit inside the energy storage container. It is the "power hub" of the energy storage container, responsible for the current convergence, system protection and energy dispatch of the battery cluster 200. It directly affects the efficiency and safety of the energy storage system and is a key link in the stable operation of the energy storage system.

[0053] The junction box 1422 is equipped with a battery protection unit 400 and a busbar 500. The busbar 500 is connected to multiple battery clusters 200 and is used to collect the current of the battery clusters 200.

[0054] The busbar 500 is also connected to the battery protection unit 400. Under certain circumstances (such as when overcurrent or overheating occurs, or when maintenance is required), the battery protection unit 400 can disconnect to protect the battery cluster 200. Thus, the battery protection unit 400 can protect the battery cluster 200, improve the safety of the battery cluster 200 inside the energy storage container, and thereby enhance the electrical safety of the energy storage container.

[0055] In addition, the battery protection unit 400 is located inside the manifold 1422. Thus, the installation of the battery protection unit 400 will not occupy additional space inside the container 100 and will not reduce the energy density of the energy storage container.

[0056] The fire compartment 1421 houses a fire storage tank 14211, which stores fire-fighting media, which can be either fire-fighting gas or fire-fighting liquid. The container 100 also houses a fire suppression system 300, which is connected to both the fire storage tank 14211 and the battery cluster 200. Thus, when the battery cluster 200 inside the energy storage container experiences thermal runaway, the fire suppression system 300 can quickly and directly spray the fire-fighting media from the fire storage tank 14211 into the battery cluster 200, improving the timeliness of fire suppression and thereby enhancing the fire safety of the energy storage container.

[0057] The manifold 1422 and the fire compartment 1421 are arranged along the second direction. Thus, in the first direction, the manifold 1422 and the fire compartment 1421 occupy a shared space without taking up additional internal space of the container 100, thereby improving the internal space utilization of the container 100. Furthermore, the battery protection unit 400 in the manifold 1422 can improve the electrical safety of the energy storage container, and the fire storage tank 14211 in the fire compartment 1421 can improve the fire safety of the energy storage container, making the energy storage container have both high safety and high energy density.

[0058] In some embodiments, continue to participate Figure 2 , Figure 3 and Figure 4 The battery protection unit 400 includes a load switch 410 and at least one thermal fuse 420, which is connected to both the load switch 410 and the busbar 500.

[0059] Specifically, load switch 410 is an electrical switching device used to connect and disconnect normal load current. Load switch 410 is usually actively controlled by the user. When it is necessary to disconnect the current between battery cluster 200 and busbar 500, for example when it is necessary to repair or replace the circuit or electrical components in the energy storage container, the user needs to manually disconnect load switch 410 to disconnect the current between battery cluster 200 and busbar 500.

[0060] The thermal fuse 420 (also known as a thermal circuit breaker or thermal fuse) is a one-time fusible element used for overheat protection. Its core function is to permanently disconnect the circuit or equipment when the temperature exceeds a safe threshold, preventing fires, equipment damage, or other safety accidents caused by overheating. Therefore, when the current flowing through the thermal fuse 420 is too large and / or the temperature of the thermal fuse 420 is too high, the thermal fuse 420 automatically disconnects, thereby automatically cutting off the current between the battery cluster 200 and the busbar 500, thus protecting the battery cluster 200.

[0061] The battery protection unit 400 may be provided with at least one thermal fuse 420, and further, two or more thermal fuses 420 may be provided. In this way, when one thermal fuse 420 is disconnected due to overheating or overcurrent, the other thermal fuses 420 can continue to play the role of protecting the battery cluster 200.

[0062] In this application, the battery protection unit 400 includes a load switch 410 and at least one thermal fuse 420, which can disconnect the current between the battery cluster 200 and the busbar 500 under different circumstances, thereby protecting the battery cluster 200.

[0063] In some embodiments, the functional compartment 140 further includes an electrical compartment 141, and the enclosure 100 includes a bottom plate 120, with the electrical compartment 141 located on the side of the combi fire compartment 142 away from the bottom plate 120.

[0064] Specifically, the electrical compartment 141 is used to house at least one electrical component, which may be at least one of a distribution box, a main control box, a fire control box, a fan, and an air conditioner.

[0065] The electrical compartment 141 is located on the side of the combi fire compartment 142 away from the bottom plate 120. Thus, the electrical compartment 141 and the combi fire compartment 142 are arranged along the height of the container 100. In this way, the electrical compartment 141 does not occupy additional internal space in the container 100, improving the space utilization rate of the container 100. With a fixed size for the container 100, the electrical compartment 141, by not occupying additional internal space, effectively increases the space of the energy storage compartment 130 within the container 100. This allows the energy storage compartment 130 to accommodate more battery clusters 200, increasing the energy density of the energy storage container.

[0066] The electrical compartment 141 is located on the side of the busbar fire compartment 142 away from the bottom plate 120. Thus, the electrical compartment 141 is located above the busbar fire compartment 142, and the busbar fire compartment 142 is located on the side closer to the bottom plate 120. This facilitates the connection of the wiring harness in the busbar fire compartment 142 (such as the wiring harness connected to the busbar 500 or the fire-fighting wiring harness in the fire compartment 1421) to the external wiring harness or the components on the door 143. This facilitates wiring across the door and reduces the length of the wiring, making it easier for operators to operate.

[0067] Figure 5 A schematic diagram of the structure of the energy storage container according to an embodiment of this application is shown after removing the container door 110 and the hatch door 143.

[0068] In some embodiments, see Figure 2 and Figure 5 As shown, the fire protection system 300 includes a battery pack-level subsystem 310. The battery pack-level subsystem 310 includes a main pipe 311, an extension pipe 312, and multiple branch pipes 313. One end of the main pipe 311 is connected to the fire protection storage tank 14211, and the other end of the main pipe 311 passes through the electrical compartment 141 and is connected to the extension pipe 312. The extension pipe 312 extends along a first direction and is connected to multiple branch pipes 313. Each branch pipe 313 is connected to a battery cluster 200 in an energy storage compartment 130.

[0069] Specifically, one end of the main pipe 311 is connected to the fire-fighting storage tank 14211, and the other end of the main pipe 311 passes through the electrical compartment 141 and is connected to the extension pipe 312. In this way, the main pipe 311 makes full use of the internal space of the fire-fighting compartment 1421 and the electrical compartment 141, without occupying the space of the energy storage compartment 130, and will not reduce the energy density of the energy storage container.

[0070] The extension pipe 312 extends along the first direction (i.e. Figure 5 Extending in the direction shown in X, the extension direction of the extension pipe 312 is consistent with the setting direction of the energy storage compartment 130, that is, the extension direction is consistent with the arrangement direction of the multiple battery clusters 200. This facilitates the downward extension of the multiple branch pipes 313 connected to the extension pipe 312 and their connection with the corresponding battery clusters 200. This can reduce the arrangement length of the branch pipes 313 and facilitate the connection between the branch pipes 313 and the battery clusters 200.

[0071] Each branch pipe 313 is connected to a battery cluster 200 in an energy storage compartment 130, so that the fire-fighting medium in the fire-fighting storage tank 14211 can be accurately sprayed into each battery cluster 200 to precisely extinguish the fire in each battery cluster 200.

[0072] Figure 6This shows the first top view of the energy storage container after the top cover has been removed. Figure 7 A front view of the internal structure of an energy storage compartment 130 is shown. Figure 8 A front view of the internal structure of an energy storage compartment 130 is shown.

[0073] In some embodiments, see Figure 6 , Figure 7 and Figure 8 As shown, each battery cluster 200 includes components along the height direction of the housing 100 (i.e., Figure 7 Multiple battery packs 210 arranged sequentially in the direction shown in the middle Z) each branch pipe 313 includes a branch main pipe 3132 and multiple branch sub-pipes 3131 provided on the branch main pipe 3132. The branch main pipe 3132 is connected to the extension pipe 312. Each branch sub-pipe 3131 corresponds to a battery pack 210. Each branch sub-pipe 3131 is provided with a spray section 314 at the end away from the branch main pipe 3132. The spray section 314 extends into the corresponding battery pack 210.

[0074] Specifically, each branch pipe 313 includes a main branch pipe 3132 and multiple branch sub-pipes 3131 disposed on the main branch pipe 3132. The main branch pipe 3132 is connected to the extension pipe 312. The main branch pipe 3132 extends along the height direction of the housing 100. That is, the extension direction of the main branch pipe 3132 is consistent with the arrangement direction of the multiple battery packs 210 in the same battery cluster 200. This facilitates the connection between the multiple branch sub-pipes 3131 disposed on the main branch pipe 3132 and the corresponding battery pack 210, and also reduces the pipe length of the branch sub-pipes 3131, saving costs.

[0075] Each branch pipe 3131 is equipped with a spray section 314 at the end away from the main branch pipe 3132. The spray section 314 extends into the corresponding battery pack 210 and is used to spray the fire-fighting medium into the battery pack 210.

[0076] The main branch pipe 3132 is equipped with multiple branch pipes 3131. Each branch pipe 3131 is connected to a battery pack 210, and the spray section 314 of the end of each branch pipe 3131 away from the main branch pipe 3132 extends into the corresponding battery pack 210. In this way, precise fire control can be performed on each battery pack 210 in each battery cluster 200, realizing battery pack-level fire control.

[0077] For example, when thermal runaway or imminent thermal runaway is detected in a battery pack 210 within a battery cluster 200, the solenoid valves on the spray unit 314, branch pipe 3131, branch main pipe 3132, extension pipe 312, and main pipe 311 corresponding to the battery pack 210 in the fire protection system 300 can be opened. This allows the fire-fighting medium in the fire storage tank 14211 to be accurately sprayed from the spray unit 314 into the battery pack 210 after passing through the main pipe 311, extension pipe 312, and the branch main pipe 3132 and branch pipe 3131 corresponding to the battery pack 210. This achieves accurate fire control for each battery pack 210 within each battery cluster 200, realizing battery pack-level fire control and thus improving the fire safety of the entire energy storage container.

[0078] Furthermore, during the entire fire control process, the solenoid valves on the pipes corresponding to the other battery clusters 200 and battery packs 210 that have not experienced thermal runaway do not need to be opened, thus saving the consumption of fire-fighting media.

[0079] Further, see also Figure 6 As shown, the enclosure 100 also contains a compartment-level fire-fighting pipe 370. One end of the compartment-level fire-fighting pipe 370 is connected to the fire-fighting storage tank 14211, and the other end passes through the electrical compartment 141 and extends into the upper part of the energy storage compartment 130, located above the battery cluster 200. Multiple compartment-level sprinklers (not shown in the figure) are installed on the compartment-level fire-fighting pipe 370. Each compartment-level sprinkler is located within an energy storage compartment 130. The compartment-level sprinklers are used to spray the fire-fighting medium from the fire-fighting storage tank 14211 into the energy storage compartment 130, thereby achieving fire control of the energy storage compartment 130 and the entire battery cluster 200 within it.

[0080] The cabin-level fire-fighting pipe 370 is not directly connected to the battery cluster 200, therefore the cabin-level fire-fighting pipe 370 cannot achieve precise fire-fighting of a single battery pack 210 in the battery cluster 200.

[0081] In this application, through the coordinated action of the battery pack-level subsystem 310 and the compartment-level fire-fighting piping 370, fire control can be performed on the energy storage compartment 130 and the entire battery cluster 200 within the energy storage compartment 130 to achieve compartment-level fire control, and fire control can also be performed on each battery pack 210 on each battery cluster 200 to achieve battery pack-level fire control, thereby improving the fire safety of the energy storage container.

[0082] Figure 9 This shows a second top view of the energy storage container after the top cover has been removed. Figure 10 A side view of the energy storage container door 143 after it is opened, according to an embodiment of this application, is shown.

[0083] In some embodiments, see Figure 3, Figure 8 , Figure 9 and Figure 10 As shown, the fire protection system 300 also includes a fire protection wiring harness 320 and a fire protection control unit 330. The fire protection wiring harness 320 includes a main wiring harness 321, an extension wiring harness 322 and multiple branch wiring harnesses 323. One end of the main wiring harness 321 is connected to the fire protection control unit 330, and the other end of the main wiring harness 321 passes through the electrical compartment 141 and is connected to the extension wiring harness 322. The extension wiring harness 322 extends in a first direction and is connected to multiple branch wiring harnesses 323. Each branch wiring harness 323 is connected to a battery cluster 200 in an energy storage compartment 130.

[0084] Specifically, the fire control unit 330 is connected to both the fire wiring harness 320 and the fire protection system 300. The fire wiring harness 320 is used to transmit the collected electrical signals to the fire control unit 330. The fire control unit 330 controls the opening or closing of the fire protection system 300 based on the received electrical signals, thereby enabling or stopping the spraying of fire protection media.

[0085] One end of the main wiring harness 321 is connected to the fire control unit 330, and the other end of the main wiring harness 321 passes through the electrical compartment 141 and is connected to the extension wiring harness 322. In this way, the main wiring harness 321 makes full use of the internal space of the electrical compartment 141 without occupying the space of the energy storage compartment 130, and does not reduce the energy density of the energy storage container.

[0086] The extension harness 322 extends along the first direction (i.e. Figure 9 Extending in the direction shown in X, the extension direction of the extension harness 322 is consistent with the setting direction of the energy storage compartment 130, that is, the extension direction is consistent with the arrangement direction of the multiple battery clusters 200. This facilitates the downward extension of the multiple branch harnesses 323 connected to the extension harness 322 and their connection with the corresponding battery clusters 200, which can reduce the arrangement length of the branch harnesses 323 and facilitate the connection between the branch harnesses 323 and the battery clusters 200.

[0087] Each branch line 323 is connected to a battery cluster 200 in an energy storage compartment 130. In this way, the branch line 323 can transmit the electrical signals in each battery cluster 200 to the fire control unit 330, so that the fire control unit 330 can accurately judge the electrical signals of each battery cluster 200.

[0088] In some embodiments, see continue to see Figure 5 , Figure 6 , Figure 7 and Figure 8Each battery cluster 200 includes multiple battery packs 210 arranged sequentially along the height direction of the housing 100. Each branch harness 323 includes a branch bus harness 3231 and multiple branch branch harnesses 3232 disposed on the branch bus harness 3231. The branch bus harness 3231 is connected to the extension harness 322. Each branch branch harness 3232 corresponds to a battery pack 210. Each branch branch harness 3232 is provided with a detection part 340 at the end away from the branch bus harness 3231. The detection part 340 extends into the corresponding battery pack 210. The detection part 340 and the spray part 314 are located on the same side of the battery pack 210.

[0089] Specifically, each branch harness 323 includes a branch bus harness 3231 and multiple branch branch harnesses 3232 disposed on the branch bus harness 3231. The branch bus harness 3231 is connected to the extension harness 322. The branch bus harness 3231 is located along the height direction of the housing 100 (i.e., Figure 8 The extension direction of the branch bus bundle 3231 is consistent with the arrangement direction of the multiple battery packs 210 within the same battery cluster 200. This facilitates the connection between the multiple branch sub-bundles 3232 on the branch bus bundle 3231 and the corresponding battery packs 210, and also reduces the length of the branch sub-bundles 3232, saving costs.

[0090] Each branch wiring harness 3232 is provided with a detection unit 340 at the end away from the branch bus harness 3231. The detection unit 340 extends into the corresponding battery pack 210 and is used to collect the electrical signal of the battery pack 210.

[0091] The branch bus harness 3231 is provided with multiple branch branch harnesses 3232. Each branch branch harness 3232 is connected to a battery pack 210, and the detection part 340 of the end of each branch branch harness 3232 away from the branch bus harness 3231 extends into the corresponding battery pack 210. In this way, the electrical signal of each battery pack 210 in each battery cluster 200 can be accurately detected. Then, the detected electrical signal of each battery pack 210 can be transmitted to the fire control unit 330 through the fire harness 320. In this way, the fire control unit 330 can judge the thermal runaway of each battery pack 210 based on the received electrical signal of each battery pack 210. Once it is determined that a battery pack 210 has thermal runaway, the fire control system 300 is immediately controlled to accurately extinguish the fire in the battery pack 210.

[0092] For example, the detection unit 340 may include a smoke detector, a temperature detector and / or a gas detector, and the electrical signal may include the smoke signal collected by the smoke detector, the temperature signal collected by the temperature detector and / or the gas signal collected by the gas detector.

[0093] The smoke detector is used to collect the smoke concentration inside the battery pack 210, thereby generating a smoke signal and sending it to the fire control unit 330. The fire control unit 330 can determine whether the battery pack 210 has experienced thermal runaway based on the magnitude of the smoke signal.

[0094] Temperature detectors are used to collect the temperature of battery pack 210. When the energy storage container enters the operating state, the cells in battery pack 210 will generate heat. Temperature detectors collect the temperature of battery pack 210 in real time and generate temperature signals, which are then sent to fire control unit 330. Fire control unit 330 can determine whether thermal runaway has occurred in battery pack 210 based on the magnitude of the temperature signal.

[0095] Gas detectors are used to collect the concentration of specific gases. For example, when the battery cells in the battery pack 210 are lithium iron phosphate type, the gas generated when this type of battery cell experiences thermal runaway contains a certain proportion of hydrogen. The gas detector mainly collects the hydrogen content in the air, generates a gas signal based on the hydrogen content, and sends it to the fire control unit 330. The fire control unit 330 can determine whether the battery pack 210 has experienced thermal runaway based on the magnitude of the gas signal.

[0096] Figure 11 A partial structural diagram of the energy storage container after the top cover has been removed is shown.

[0097] In some embodiments, see Figure 11 As shown, the fire protection system 300 also includes a fire protection conduit 350, which is fitted over the extension harness 322 and multiple branch harnesses 323. The fire protection conduit 350 serves two purposes: firstly, it accommodates the extension harness 322 and multiple branch harnesses 323, allowing the harnesses to be neatly and orderly placed within the conduit, preventing tangling and ensuring usability; secondly, in the event of thermal runaway, the fire protection conduit 350 protects the extension harness 322 and branch harnesses 323 within it, delaying the time it takes for the fire to reach the harnesses, thus protecting them.

[0098] In some embodiments, continue to participate Figure 10 and Figure 11 As shown, the fire protection system 300 also includes a wiring box 360, which is located inside the electrical compartment 141. The main wiring harness 321 passes through the wiring box 360 and connects to the extension wiring harness 322. In this way, the wiring box 360 allows the main wiring harness 321 to pass through, so that the main wiring harness 321 can be placed neatly and orderly inside the wiring box 360, avoiding the main wiring harness 321 from getting tangled with other wiring harnesses. At the same time, it can also shield the main wiring harness 321, preventing it from being exposed inside the electrical compartment 141 and improving the aesthetics of the interior of the electrical compartment 141.

[0099] The wiring box 360 is located inside the electrical compartment 141 and is set close to the bulkhead of the electrical compartment 141. This arrangement of the wiring box 360 occupies the internal space of the electrical compartment 141, improves the space utilization rate of the electrical compartment 141, and does not reduce the internal space of the functional compartment 140 or affect the energy density of the energy storage container.

[0100] In some embodiments, see Figure 10 As shown, the functional compartment 140 includes a door 143, and a fire control unit 330 is located on the side of the door 143 near the functional compartment 140. A wiring harness box 600 is also provided on the door 143, and the main wiring harness 321 passes through the wiring harness box 600 and is connected to the fire control unit 330.

[0101] Specifically, the fire control unit 330 is located on the side of the hatch 143 near the functional compartment 140, so that the fire control unit 330 only occupies the internal space of the hatch 143 and hardly occupies the internal space of the container 100. Thus, the fire control unit 330 will hardly reduce the internal space of the container 100, and therefore will not reduce the energy density of the container.

[0102] The hatch 143 is also equipped with a wiring harness box 600. The wiring harness box 600 is located on the side of the hatch 143 near the container body 100. In this way, the wiring harness box 600 only occupies the internal space of the hatch 143 and hardly occupies the internal space of the container body 100. The wiring harness box 600 will hardly reduce the internal space of the container body 100, and thus will not reduce the energy density of the container.

[0103] The main wiring harness 321 passes through the wiring harness box 600 and connects to the fire control unit 330. This allows the wiring harness box 600 to accommodate the main wiring harness 321, providing a fixed wiring space for the main wiring harness 321 running from the busbar fire compartment 142 to the door 143. This facilitates the wiring and connection of the main wiring harness 321, improves the neatness of the wiring, and thus enhances the aesthetics and cleanliness of the inside of the door 143. Furthermore, the wiring harness box 600 can limit the movement of the main wiring harness 321, preventing it from moving freely, and eliminates the need for wiring harness fasteners, making operation easier.

[0104] In some embodiments, see continue to see Figure 1 , Figure 6 and Figure 7As shown, the container 100 is provided with a bottom plate 120 and a door 110. The door 110 is located near the detection unit 340 and the spray unit 314. The extension harness 322 and the extension pipe 312 are both located on the side of the battery cluster 200 away from the bottom plate 120 and near the door 110. This makes it convenient for users to open the door 110 to replace, repair and inspect the detection unit 340 and the spray unit 314. It is also convenient for users to replace, repair and inspect the extension harness 322 and the extension pipe 312, thus improving the usability of the entire energy storage container.

[0105] In some embodiments, see Figure 11 As shown, the main pipe 311 includes a first pipe 3111, a transition pipe 3112, and a second pipe 3113. The second pipe 3113 is located on the side of the battery cluster 200 away from the bottom plate 120 and is connected to the extension pipe 312. One end of the first pipe 3111 is connected to the fire storage tank 14211, and the other end of the first pipe 3111 passes through the electrical compartment 141 and is connected to the second pipe 3113 through the transition pipe 3112. The transition pipe 3112 is an arc-shaped pipe.

[0106] Specifically, the transition pipe 3112 connects the first pipe 3111 and the second pipe 3113, serving the purpose of an existing junction box. However, compared to the junction box, the transition pipe 3112 is smaller in size and occupies less space, making it easier to install and replace in the limited space above the battery cluster 200. At the same time, the arc-shaped design can also protect the safety of the operator, ensuring that the operator will not be scratched by the outer wall of the pipe when installing the pipe.

[0107] In some embodiments, see continue to see Figure 2 As shown, the housing 100 also includes a liquid cooling chamber 150, which is located on the same side of the energy storage chamber 130 as the functional chamber 140. The liquid cooling chamber 150 and the functional chamber 140 are arranged along the second direction. The liquid cooling chamber 150 is equipped with a liquid cooling component 151, which is used to exchange heat with the battery cluster 200.

[0108] Specifically, for example, the second direction can be the width direction of the housing 100.

[0109] Since the liquid cooling compartment 150 and the functional compartment 140 are arranged along the second direction, the liquid cooling compartment 150 does not occupy additional internal space of the container 100 in the first direction. The liquid cooling compartment 150 and the functional compartment 140 share a space, improving the space utilization rate inside the container 100. With a fixed size for the container 100, the fact that the liquid cooling compartment 150 does not occupy additional internal space is equivalent to increasing the space of the energy storage compartment 130 inside the container 100. This allows the energy storage compartment 130 to accommodate more battery clusters 200, increasing the energy density of the energy storage container.

[0110] The liquid cooling chamber 150 is equipped with a liquid cooling component 151, which is used to exchange heat with the battery cluster 200 in the energy storage chamber 130 to ensure that the temperature of the battery cluster 200 can be controlled at a suitable operating temperature (e.g., 15-30°C). For example, the liquid cooling component 151 can be a liquid cooling pipe or a liquid cooling plate, etc.

[0111] Furthermore, the functional compartment 140, fire compartment 1421, electrical compartment 141, and junction compartment 1422 are all isolated from each other and are not interconnected, ensuring the safety of each compartment. For example, firewalls or insulating panels can be installed between each compartment to provide heat insulation and fire prevention, thereby improving the safety of the energy storage system.

[0112] 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.

[0113] 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 enclosure includes multiple energy storage compartments and functional compartments arranged continuously along a first direction. The energy storage compartments are equipped with battery clusters. The functional compartments include a fire-fighting compartment. The fire-fighting compartment includes a fire-fighting compartment and a fire-fighting compartment arranged along a second direction, which is perpendicular to the first direction. The fire-fighting compartment is equipped with a fire-fighting tank, which stores fire-fighting media. The manifold is equipped with a battery protection unit and a busbar. The busbar is connected to both the battery cluster and the battery protection unit. The battery protection unit can be disconnected to protect the battery cluster. The container is also equipped with a fire protection system, which is connected to both the fire storage tank and the battery cluster, and is used to spray the fire protection medium into the battery cluster.

2. The energy storage container according to claim 1, characterized in that, The battery protection unit includes a load switch and at least one thermal fuse, which is connected to both the load switch and the busbar.

3. The energy storage container according to claim 1, characterized in that, The functional compartment also includes an electrical compartment, and the enclosure includes a bottom plate. The electrical compartment is located on the side of the combi fire compartment away from the bottom plate.

4. The energy storage container according to claim 3, characterized in that, The fire protection system includes a battery pack-level subsystem, which includes a main pipeline, an extension pipeline, and multiple branch pipelines. One end of the main pipeline is connected to the fire protection storage tank, and the other end of the main pipeline passes through the electrical compartment and is connected to the extension pipeline. The extension pipeline extends along the first direction and is connected to all of the multiple branch pipelines. Each branch pipeline is connected to a battery cluster in one of the energy storage compartments.

5. The energy storage container according to claim 4, characterized in that, Each battery cluster includes multiple battery packs arranged sequentially along the height direction of the housing. Each branch pipe includes a main branch pipe and multiple branch sub-pipes disposed on the main branch pipe. The main branch pipe is connected to the extension pipe. Each branch sub-pipe corresponds to one battery pack. Each branch sub-pipe has a spray section at the end away from the main branch pipe, and the spray section extends into the corresponding battery pack.

6. The energy storage container according to claim 5, characterized in that, The fire protection system also includes a fire protection wiring harness and a fire protection control unit. The fire protection wiring harness includes a main wiring harness, an extension wiring harness and multiple branch wiring harnesses. One end of the main wiring harness is connected to the fire protection control unit, and the other end of the main wiring harness passes through the electrical compartment and is connected to the extension wiring harness. The extension wiring harness extends along the first direction and is connected to all of the multiple branch wiring harnesses. Each of the branch wiring harnesses is connected to a battery cluster in one of the energy storage compartments.

7. The energy storage container according to claim 6, characterized in that, Each battery cluster includes multiple battery packs arranged sequentially along the height direction of the housing. Each branch harness includes a branch bus harness and multiple branch sub- harnesses disposed on the branch bus harness. The branch bus harness is connected to the extension harness. Each branch sub- harness corresponds to one battery pack. Each branch sub- harness has a detection part at the end away from the branch bus harness. The detection part extends into the corresponding battery pack. The detection part and the spraying part are located on the same side of the battery pack.

8. The energy storage container according to claim 7, characterized in that, The fire protection system also includes a fire protection conduit, which is sleeved on the outside of the extension harness and the multiple branch harnesses; And / or, the fire protection system further includes a wiring box located within the electrical compartment, through which the main wiring harness passes and connects to the extension wiring harness; And / or, the functional compartment includes a door, the fire control unit is located on the side of the door near the functional compartment, and the door is also provided with a wiring harness box, through which the main wiring harness passes and is connected to the fire control unit.

9. The energy storage container according to claim 7, characterized in that, The enclosure has a bottom plate and a door. The door is located near the detection unit and the spraying unit. The extension harness and the extension pipe are both located on the side of the battery cluster away from the bottom plate and near the door.

10. The energy storage container according to claim 4, characterized in that, The main pipeline includes a first pipeline, a transition pipeline, and a second pipeline. The second pipeline is located on the side of the battery cluster away from the bottom plate of the tank and is connected to the extension pipeline. One end of the first pipeline is connected to the fire storage tank, and the other end of the first pipeline passes through the electrical compartment and is connected to the second pipeline through the transition pipeline. The transition pipeline is an arc-shaped pipeline.

11. The energy storage container according to claim 1, characterized in that, The enclosure also includes a liquid cooling chamber, which is located on the same side of the energy storage chamber as the functional chamber. The liquid cooling chamber and the functional chamber are arranged along the second direction. The liquid cooling chamber is equipped with a liquid cooling component, which is used to exchange heat with the battery cluster.

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