Energy storage apparatus

Abstract

An energy storage apparatus, comprising a case body in which an accommodating space is defined, wherein the accommodating space comprises a battery compartment and an electrical compartment; the battery compartment accommodates a plurality of battery apparatuses; a partition member is provided in the electrical compartment, by means of which the electrical compartment is partitioned into a first chamber and a second chamber; the first chamber has a first opening open to the space in the second chamber; the partition member is configured to close the first opening and can at least partially open relative to the first opening so as to enable the first chamber to communicate with the second chamber; at least a busbar assembly is provided in the first chamber, the busbar assembly being connected to the battery apparatuses; and at least an electrical control assembly is provided in the second chamber.

Description

Energy storage devices

[0001] Cross-reference of related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 202422658455.4, filed on October 31, 2024, entitled “Energy Storage Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of energy storage technology, and more particularly to energy storage devices. Background Technology

[0004] New energy technologies are being applied more and more widely in daily life and industry. For example, new energy technologies are widely used in the automotive industry, and they are also being increasingly applied to the field of energy storage.

[0005] Currently, higher requirements are being placed on the efficient use of space in energy storage devices. Summary of the Invention

[0006] To address the aforementioned technical problems, this disclosure provides an energy storage device that features a compact layout, low interference risk, and ease of maintenance.

[0007] This disclosure provides an energy storage device, including a housing that defines a receiving space. The receiving space includes a battery compartment and an electrical compartment. The battery compartment houses multiple battery devices. The electrical compartment is provided with a partition that divides the electrical compartment into a first chamber and a second chamber. The first chamber has a first opening that opens toward a space inside the second chamber. The partition is configured to close the first opening but is at least partially openable relative to the first opening to allow communication between the first chamber and the second chamber. At least one current-combining assembly is provided in the first chamber and connected to the battery devices. At least one electrical control assembly is provided in the second chamber.

[0008] The electrical compartment is divided into a first chamber and a second chamber by a partition. The busbar assembly is located in the first chamber, and the electrical control components such as the power distribution switch are located in the second chamber. This allows for full utilization of the electrical compartment, improves the compactness of the layout of each component within the electrical compartment, increases the space ratio of the battery compartment, and enhances the volumetric energy density of the energy storage device. Furthermore, the partition is configured to allow the first opening to be closed or opened, thereby isolating the busbar assembly and the power distribution switch to reduce mutual interference of current, magnetic fields, etc., and reducing the risk of electric shock when operating the power distribution switch and other electrical control components. In addition, the busbar assembly can be maintained through the first opening, improving maintenance convenience.

[0009] In some embodiments, the first chamber and the second chamber at least partially overlap along a first direction, wherein the first direction is perpendicular to the bearing surface used to support the energy storage device.

[0010] Therefore, the space in the height direction of the electrical compartment can be fully utilized, which is conducive to increasing the space ratio of the battery compartment and improving the volumetric energy density of the energy storage device.

[0011] In some embodiments, the partition includes a partition plate, the partition plate including a partition plate body and a cover plate, the partition plate body being connected to the housing, the partition plate body having a first opening, and the cover plate being connected to the partition plate body and configured to close the first opening or open relative to the first opening.

[0012] Since the cover plate and the partition body are connected in a way that allows the first opening to be closed or opened, the cover plate can be opened to facilitate operation when the busbar assembly or other components need to be installed or maintained, thus improving maintenance convenience.

[0013] In some embodiments, the partition body includes a first main body and a second main body, which are respectively connected to the housing and are spaced apart in a second direction. A first opening is located between the first main body and the second main body, and a cover plate is detachably covering the first opening. The second direction intersects with the first direction.

[0014] Therefore, even though the first main body and the second main body are fixedly connected to the housing, the first opening can be easily opened to perform maintenance and other operations on the busbar assembly, etc.

[0015] In some embodiments, a seal is provided between the partition body and the cover plate, the seal surrounding the first opening.

[0016] This reduces the risk of moisture and dust in the second chamber entering the first chamber through the gap between the cover plate and the main body of the partition, causing the busbar to become damp and short-circuit, thus improving the reliability of the energy storage device.

[0017] In some embodiments, the cover plate includes a cover plate body and a heat insulation layer, wherein the heat insulation layer is stacked on the cover plate body.

[0018] Therefore, the heat generated in the first chamber can be suppressed from spreading to the second chamber through the insulation layer, and the risk of condensation on the surface of the cover plate facing the second chamber can also be reduced.

[0019] In some embodiments, the insulation layer is laminated on the surface of the cover plate facing the first chamber with the first opening closed, and / or the insulation layer includes a polyurethane layer.

[0020] Because the insulation layer is stacked on the surface of the cover plate facing the first chamber when the opening is closed, it can suppress the formation of condensate.

[0021] In some embodiments, the cover plate is provided with a handle.

[0022] This makes it easy to install and remove the cover plate.

[0023] In some embodiments, the first main body portion is provided with a first through hole for connecting the first chamber and the second chamber; and / or, the second main body portion is provided with a second through hole for connecting the first chamber and the second chamber.

[0024] Since the first main body and the second main body are respectively provided with through holes, electrical lines, fluid pipelines and the like can be passed through the partition through these through holes, and these lines and pipelines can be arranged in the side space close to the enclosure, which helps to improve the compactness of the layout; moreover, when the cover is removed or installed, the lines and pipelines passing through the through holes are not affected, which improves the convenience of maintenance.

[0025] In some embodiments, the first main body portion is provided with a first enclosure structure, the first enclosure structure being configured to surround at least a portion of the entire circumference of the first through hole; and / or, the second main body portion is provided with a second enclosure structure, the second enclosure structure being configured to surround at least a portion of the entire circumference of the second through hole.

[0026] Therefore, the first and second enclosure structures can prevent condensate and other substances from entering the first chamber through the first and second through holes, thereby reducing the risk of short circuits in the busbar components.

[0027] In some embodiments, the partition is configured as a bent plate, which includes a first bent segment, a second bent segment and a third bent segment connected in sequence, wherein the third bent segment is located closer to the bearing surface than the first bent segment along a first direction.

[0028] Therefore, by forming the partition into a bent plate, clearance space can be provided in the first chamber and / or the second chamber as needed, which helps to improve the flexibility and compactness of the layout.

[0029] In some embodiments, the energy storage device further includes a hatch connected to the enclosure and configured to at least close or open the electrical compartment relative to the external environment.

[0030] Since the hatch can either close or open the electrical compartment relative to the external environment, it helps protect the electrical components inside. Furthermore, when the hatch only closes the electrical compartment, when operating electrical control components such as power distribution switches, maintaining busbar components, or performing other work inside the electrical compartment, only the electrical compartment needs to be opened or closed, reducing interference to other spaces such as the battery compartment.

[0031] In some embodiments, the first chamber has a first chamber wall that closes a portion of the electrical compartment's hatch, and a hatch that closes the remainder of the electrical compartment's hatch.

[0032] This facilitates the miniaturization of the hatches, reduces their weight, and makes opening and closing them easier; it also helps reduce the overall weight of the energy storage device.

[0033] In some embodiments, the partition is connected to a first end of the first chamber wall on the side near the hatch when the hatch is closed.

[0034] This allows the partition to be set low, making it easier for operators to install or maintain the manifold in the first chamber.

[0035] In some embodiments, the hatch has a main control box on the door facing the second chamber when the hatch is closed. The partition includes a partition plate, which is configured as a bent plate. The bent plate includes a first bent section, a second bent section and a third bent section connected in sequence. The third bent section is connected to the first end. When the hatch is closed, and the main control box is projected onto the same projection plane in a direction perpendicular to the third bent section, the projection of the main control box partially overlaps with the projection of the third bent section. Furthermore, the main control box approaches or abuts against the second bent section.

[0036] Therefore, by equipping the main control box with the door body, the space and installation position inside the second chamber can be fully utilized; by constructing the bulkhead as a bent plate and providing clearance for the main control box, the compactness of the layout of the components inside the second chamber can be improved.

[0037] In some embodiments, the enclosure is further provided with an air duct, the vent of which is located in the second chamber; the door is also provided with a fan, and when the door closes the electrical compartment, the fan is at least partially located in the second chamber, and the airflow outlet of the fan corresponds to the vent of the air duct.

[0038] By arranging the ventilation openings of the air duct in the second chamber, it is beneficial to further utilize the space of the second chamber; by setting the fan in the door, with at least a part of the fan located in the second chamber when the door closes the electrical compartment, the space of the second chamber can be further fully utilized; moreover, it is convenient to carry out inspection and maintenance operations on the ventilation openings, fans, etc.

[0039] In some embodiments, the door body is also provided with a control device, which is located at least partially in the second chamber when the door closes the electrical compartment.

[0040] By placing the control device in the hatch, with at least a portion of the control device located in the second chamber when the electrical compartment is closed, the space of the second chamber can be further utilized; moreover, it facilitates the operation of the control device.

[0041] In some embodiments, the second chamber is also equipped with fire-fighting components, which are mounted on the side wall of the enclosure.

[0042] This allows for further utilization of the space and installation location of the second chamber while meeting fire safety requirements.

[0043] In some embodiments, the accommodating space further includes a cooling chamber, which houses a portion of a cooling system, including at least a cooling unit and cooling piping.

[0044] Therefore, by setting up a cooling compartment independently of the electrical and battery compartments, interference between the compartments can be reduced.

[0045] In some embodiments, the cooling compartment and the electrical compartment are arranged on the same side of the battery compartment.

[0046] This allows for the cooling and electrical compartments to be arranged as compactly as possible, facilitating the placement of the battery compartment within the enclosure to the greatest extent possible, thereby increasing the volumetric energy density of the energy storage device.

[0047] The beneficial effects of the embodiments disclosed herein include: providing an energy storage device with a compact layout, low risk of interference, and ease of maintenance. Attached Figure Description

[0048] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0049] Figure 1 is a schematic diagram of the structure of an energy storage device provided in some embodiments of this disclosure;

[0050] Figure 2 is a schematic diagram of the structure of the partition provided in some embodiments of this disclosure;

[0051] Figure 3 is a structural schematic diagram of the partition provided in some embodiments of this disclosure from another perspective.

[0052] Explanation of reference numerals in the attached drawings: 10-Box body; 11-Battery compartment; 12-Electrical compartment; 121-First chamber; 121a-First chamber wall; 121b-First end; 122-Second chamber; 13-Cooling chamber; 20-Busseter assembly; 30-Power distribution cabinet; 40-Separator; 41-Block body; 411-First main body; 412-Second main body; 413-Connecting part; 411a-First through hole; 411b-First enclosure structure; 412a-Second through hole; 412b-Second enclosure structure; 41a-First opening; 42-Cover plate; 421-First bend; 422-Second bend; 423-Third bend; 43-Sealing element; 50-Door; 61-Main control box; 62-Fan; 63-Control device; 64-Air duct; 65-Fire-fighting components. Detailed Implementation

[0053] The embodiments of the technical solutions disclosed herein will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solutions disclosed herein and are therefore intended to limit the scope of protection of this disclosure.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0055] In the description of the embodiments of this disclosure, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. In the description of the embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly defined.

[0056] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0058] In the description of the embodiments of this disclosure, the technical terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated, or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0059] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0060] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0061] The embodiments of this disclosure will now be described in detail.

[0062] The application of new energy technologies in daily life and industry is becoming increasingly widespread. For example, new energy technologies are widely used in the automotive industry, and they are also increasingly being applied to energy storage. Currently, higher demands are being placed on the efficient utilization of space in energy storage devices.

[0063] Energy storage devices may include battery compartments and electrical compartments. The battery compartment can house multiple battery devices, whose input and output terminals are combined and connected to power sources, the power grid, and electrical equipment via a combiner assembly. The electrical compartment can house distribution cabinets used for overall distribution control.

[0064] In related technologies, the combiner assembly occupies battery compartment space, resulting in significant space waste and hindering the improvement of volumetric energy density. Therefore, it is considered to arrange the combiner assembly in the electrical compartment to make full use of the electrical compartment space. In addition, considering the potential interference between high and low voltage electrical components (such as interference caused by current, magnetic fields, etc.) and the convenience of maintenance operations for the combiner assembly, the embodiments of this disclosure were designed.

[0065] This disclosure provides an energy storage device including a housing defining a receiving space. The receiving space includes a battery compartment and an electrical compartment. The battery compartment houses multiple battery devices. The electrical compartment is provided with a partition that divides the electrical compartment into a first chamber and a second chamber. The first chamber has a first opening that opens toward a space inside the second chamber. The partition is configured to close the first opening but is at least partially openable relative to the first opening to allow communication between the first chamber and the second chamber. At least one current-combining assembly is provided in the first chamber and connected to the battery devices. At least one electrical control assembly is provided in the second chamber.

[0066] The electrical compartment is divided into a first chamber and a second chamber by a partition. The busbar assembly is located in the first chamber, and the electrical control components such as the power distribution switch are located in the second chamber. This allows for full utilization of the electrical compartment, improves the compactness of the layout of each component within the electrical compartment, increases the space ratio of the battery compartment, and enhances the volumetric energy density of the energy storage device. Furthermore, the partition is configured to allow the first opening to be closed or opened, thereby isolating the busbar assembly and the electrical control components such as the power distribution switch to reduce mutual interference of current, magnetic fields, etc., and reducing the risk of electric shock when operating the electrical control components such as the power distribution switch. In addition, the busbar assembly can be maintained through the first opening, improving maintenance convenience.

[0067] The energy storage device disclosed in this embodiment can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device can store electrical energy as needed and output it at appropriate times. For example, the energy storage device can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours.

[0068] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0069] In some embodiments, one or more battery clusters may be arranged in the battery compartment of the energy storage device. Each battery cluster may include multiple battery devices, which may be connected in series to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0070] In some embodiments, a battery apparatus may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or in a mixed configuration via a busbar.

[0071] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0072] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0073] In some embodiments, the battery device may be a battery pack, which includes an outer casing and one or more individual battery cells housed within the outer casing.

[0074] As an example, the battery cell assembly can be a battery module, which can be housed in an outer casing by fixing the battery module in the casing.

[0075] As an example, battery cell assemblies can also be housed in an outer casing by directly fixing multiple battery cells to the outer casing.

[0076] As an example, the outer casing may include a first outer casing and a second outer casing. The first and second outer casings are fastened together to form a closed space inside the outer casing to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first outer casing may be a top cover or a bottom plate.

[0077] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a central control module, a power distribution module, and a fire protection system.

[0078] As an example, the thermal management module may include a cooling unit that provides a cooling medium to each battery device via piping for regulating the temperature of the battery device. For instance, the cooling unit may be a liquid-cooled unit, and the cooling medium may be a coolant.

[0079] As an example, the main control module can act as the battery management unit for the battery cluster, configured to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster. For instance, it can control the charging and discharging current and voltage of the battery cluster. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0080] As an example, the central control module can serve as the battery management unit for an energy storage device, configured to monitor and manage the device. The central control module can monitor information such as the energy storage device's current, voltage, power, state of charge, or temperature. For example, it can control the charging and discharging current and voltage of the energy storage device. As an example, the central control module includes modules such as an Insulation Monitoring Module (IMM), a Master Battery Management Unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module. Exemplarily, the central control module may include input / output devices for control, such as switches and panels, which can be arranged in a central control box.

[0081] As an example, the power distribution module can be configured to distribute power to the energy storage device's electrical equipment. Exemplarily, the power distribution module may include input / output devices for control, such as switches, panels, etc., which may be arranged in a distribution box or cabinet.

[0082] As an example, a fire protection system includes fire protection components, control panels, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in energy storage systems.

[0083] The following describes some embodiments of the present disclosure in detail with reference to Figures 1 to 3. Figure 1 is a structural schematic diagram of an energy storage device provided in some embodiments of the present disclosure; Figure 2 is a structural schematic diagram of a partition provided in some embodiments of the present disclosure; Figure 3 is a structural schematic diagram of a partition provided in some embodiments of the present disclosure from another perspective.

[0084] This disclosure provides an energy storage device, as shown in FIG1, including a housing 10, which defines an accommodating space. The accommodating space includes a battery compartment 11 and an electrical compartment 12. The battery compartment 11 accommodates multiple battery devices (not shown in the figure). The electrical compartment 12 is provided with a partition 40, which divides the electrical compartment 12 into a first chamber 121 and a second chamber 122. The first chamber 121 has a first opening 41a that opens toward the space inside the second chamber 122. The partition 40 is configured to close the first opening 41a and at least partially open relative to the first opening 41a to communicate between the first chamber 121 and the second chamber 122. At least one current-combining assembly (not shown in the figure) is provided in the first chamber 121, and the current-combining assembly is connected to the battery devices. At least one electrical control component (not shown in the figure) such as a power distribution switch is provided in the second chamber 122.

[0085] The enclosure 10 is used to define the storage space, which is used to house the components of the energy storage device. The storage space provided by the enclosure 10 can be broadly divided into a battery compartment and an electrical compartment. The battery compartment is mainly used to house battery clusters (including multiple battery devices), and the electrical compartment is mainly used to house at least one of the main control module, the central control module, the power distribution module, and the fire protection module.

[0086] Multiple battery devices in battery compartment 11 can be electrically connected via busbar assembly 20. As an example, multiple battery devices are connected in series via the busbar assembly to increase the voltage of the energy storage device. When the energy storage device comprises multiple battery clusters, the battery clusters are connected in parallel via the busbar assembly to increase the capacity of the energy storage device. These busbar assemblies further electrically connect the battery devices to a power supply system and electrical appliances. In embodiments of this disclosure, at least a portion of the busbar assemblies are arranged in electrical compartment 12.

[0087] The electrical compartment 12 is equipped with a partition 40, which divides the electrical compartment 12 into a first chamber 121 and a second chamber 122. Electrical control components, including a distribution cabinet 30 with a power distribution switch, are arranged in the second chamber 122, while a busbar assembly 20 is arranged in the first chamber 121. This embodiment does not impose any particular limitations on the distribution cabinet 30 or the busbar assembly 20; existing methods can be used. The distribution cabinet 30 located in the second chamber 122 may have a door, or it may not have a door, or it may be a distribution panel with a power distribution switch, etc. The electrical control components may also include fire control components, etc. Typically, the busbar assembly 20 is a high-voltage component, and the distribution cabinet 30 is a low-voltage component. During operation, electromagnetic interference may occur between the two, potentially adversely affecting the stable operation of the energy storage device. Isolating the busbar assembly from the distribution cabinet 30 through the partition 40 effectively reduces electromagnetic interference.

[0088] Furthermore, the first chamber 121 and the second chamber 122 can be connected. For example, a first opening 41a can be provided, and the two chambers can be separated by closing the first opening 41a with a partition 40. Additionally, the partition 40 can be configured to be partially or fully openable relative to the first opening 41a. In the open state, operators or tools can extend from the second chamber 122 into the first chamber 121 to perform installation, maintenance, or other operations. For example, the partition 40 can be detachably connected entirely relative to the first opening 41a; or, the partition 40 can be partially or entirely detachably connected relative to the first opening 41a; or, the partition can be partially or entirely rotated to open and close the first opening 41a.

[0089] The electrical compartment 12 is divided into a first chamber 121 and a second chamber 122 by the partition 40. The busbar assembly 20 is located in the first chamber 121, and electrical control components such as the distribution cabinet 30, which includes a power distribution switch, are located in the second chamber 122. This allows for full utilization of the electrical compartment 12, improves the compactness of the layout of each component within the electrical compartment 12, and helps to increase the space ratio of the battery compartment 11, thereby increasing the volumetric energy density of the energy storage device. Furthermore, the partition 40 is configured to allow the first opening 41a to be closed or opened, thereby isolating the busbar assembly 20 from the electrical control components such as the distribution cabinet, which includes a power distribution switch, to reduce mutual interference of current, magnetic fields, etc., and to reduce the risk of electric shock when operating the electrical control components such as the power distribution switch. In addition, the busbar assembly 20 can be maintained through the first opening 41a, improving maintenance convenience.

[0090] In some embodiments, the first chamber 121 and the second chamber 122 at least partially overlap along a first direction Z, wherein the first direction Z is perpendicular to the bearing surface for supporting the energy storage device.

[0091] As an example, as shown in Figure 1, the electrical compartment 12 is located at the end of the housing 10 and is arranged side by side with the battery compartment 11. Inside the electrical compartment, the partition 40 divides the electrical compartment 12 into a first chamber 121 and a second chamber 122 distributed along the first direction Z (which can be regarded as the height direction of the housing 10). The first chamber 121 and the second chamber 122 may partially or completely overlap along the first direction Z.

[0092] In some embodiments, the second chamber 122 is located above the first chamber 121. In other embodiments, the second chamber 122 occupies a larger space in the first direction Z than the first chamber 121 occupies in the first direction Z.

[0093] Therefore, the space in the height direction of the electrical compartment 12 can be fully utilized, which is conducive to increasing the space ratio of the battery compartment 11 and improving the volumetric energy density of the energy storage device.

[0094] In some embodiments, the partition 40 includes a partition plate. The partition 40, which serves as the partition plate, includes a partition plate body 41 and a cover plate 42. The partition plate body 41 is disposed on the housing 10 and has a first opening 41a. The cover plate is connected to the partition plate body 41 and is configured to close the first opening 41a or open relative to the first opening 41a.

[0095] The partition body 41 can be connected (e.g., fixedly connected) to the housing 10, for example, by welding or bolting. The cover 42 is detachably connected to the partition body 41 or can be opened and closed. When the cover 42 is installed on the partition body 41 and covers the first opening 41a, the cover 42 closes the first opening 41a, thereby isolating the first chamber 121 and the second chamber 122. When the cover 42 is removed from the partition body 41 or rotated open relative to the first opening 41a, the first opening 41a is opened, and the manifold assembly 20 in the first chamber 121 can be installed, maintained, or operated through the first opening 41a.

[0096] The cover plate 42 and the partition body 41 can be detachably connected by bolts, snap-fit ​​connections, or hinges. The partition body 41 can have one or more first openings 41a. These first openings 41a can be formed by the partition body 41 and the surrounding box wall, or they can be formed solely by the partition body 41. As an example, as shown in Figures 2 and 3, the partition body 41 can have a frame structure that encloses two first openings 41a distributed along the second direction Y of the box 10. A cover plate 42 is provided for each first opening 41a, and a handle can be provided on the cover plate 42 for easy disassembly.

[0097] As an example, the material of the separator 40 can be metal, such as aluminum plate, steel plate, aluminum alloy plate, etc. In some embodiments, the material of the separator 40 can also be non-metallic, such as resin. Furthermore, electromagnetic shielding measures can be implemented on the separator 40 as needed.

[0098] The cover plate 42 is connected to the partition body 41 in a way that allows the first opening 41a to be closed or opened. When the busbar assembly 20 needs to be installed or maintained, the cover plate 42 can be opened to easily operate the busbar assembly 20, thus improving the convenience of maintenance.

[0099] In some embodiments, the partition body 41 includes a first body portion 411 and a second body portion 412, the first body portion 411 and the second body portion 412 are respectively connected to the housing 10, and the first body portion 411 and the second body portion 412 are arranged at intervals in the second direction Y, the first opening 41a is located between the first body portion 411 and the second body portion 412, and the cover plate 42 is detachably covered by the first opening 41a, the second direction Y intersects with the first direction Z.

[0100] In one specific embodiment, as shown in FIG3, two connecting parts 413 can be connected between the first main body 411 and the second main body 412. The first main body 411, the second main body 412, and the connecting parts 413 constitute a frame structure with a first opening 41a, which is an annular closed opening. The partition body 41 can be fixed to the box 10 through the first main body 411 and the second main body 412.

[0101] In another specific embodiment, the two connecting parts 413 described above may be part of the box wall of the box 10, that is, the first main body part 411 and the second main body part 412 are installed on the box wall of the box 10 and together with the box wall form the first opening 41a.

[0102] The end edges of the first main body part 411 and the second main body part 412 that are connected to the housing wall of the housing 10 can be installed on the housing 10 by welding and / or threaded connection.

[0103] Therefore, even with the first main body 411 and the second main body 412 fixedly connected to the housing 10, the cover 42 can still be opened normally, allowing for easy maintenance and installation of the busbar assembly and other components through the first opening 41a. In some embodiments, a sealing element 43 is provided between the partition body 41 and the cover 42, and the sealing element 43 is arranged around the first opening 41a.

[0104] The seal 43 can be a closed annular structure surrounding the opening 41a. The seal 43 can be a rubber ring, rubber packing, etc.

[0105] Since the busbar assembly 20 is a high-voltage component, it generates a large amount of heat during operation, which may lead to excessive condensation on the surface of the cover plate 42. There is a risk that water vapor and condensate may enter the first chamber 121 through the first opening 41a, causing a short circuit in the busbar assembly 20. In addition, there is also a risk that a large amount of dust or particulate matter may enter the first chamber 121.

[0106] A sealing element 43 is provided between the partition body 41 and the cover plate 42. The sealing element 43 is arranged around the first opening 41a, which can reduce the risk of condensate, dust, etc. on the surface of the cover plate 42 entering the first chamber 121, thereby protecting the busbar assembly 20 and improving the stability of the energy storage device. The sealing element 43 can be selected according to the actual situation. For example, a sealing element with a protection level of IP55 (see GB / T4208-2017) can be selected.

[0107] In some embodiments, the cover plate 42 includes a cover plate body and a heat insulation layer, wherein the heat insulation layer is stacked on the cover plate body.

[0108] The cover plate body can be configured to have two facing surfaces along the thickness direction, and the insulation layer can be laminated on either or both surfaces. The insulation layer can be laminated on the entire surface of the cover plate body, or it can be laminated on a portion of the surface of the cover plate body.

[0109] Therefore, the heat generated in the first chamber 121 can be suppressed from spreading to the second chamber 122 by the heat insulation layer, and the risk of condensation on the surface of the cover plate 42 facing the second chamber can also be reduced.

[0110] In some embodiments, an insulation layer is laminated on the surface of the cover plate 42 facing the first chamber 121 while the first opening 41a is closed. In some embodiments, the insulation layer comprises a polyurethane layer.

[0111] In some specific embodiments, the bottom surface of the cover plate 42 facing the first chamber 121 is provided with a polyurethane coating.

[0112] As an example, the polyurethane coating can be applied to the bottom surface of the cover plate 42 by spraying. Applying a polyurethane coating to the bottom surface of the cover plate 42 not only prevents condensation but also provides thermal insulation.

[0113] In some embodiments, the first main body portion 411 is provided with a first through hole 411a for connecting the first chamber 121 and the second chamber 122; and / or, the second main body portion 412 is provided with a second through hole 412a for connecting the first chamber 121 and the second chamber 122.

[0114] The first through hole 411a provided in the first main body 411 can connect the first chamber 121 and the second chamber 122. The first through hole 411a can be used for the passage of lines or pipes.

[0115] The second through hole 412a provided in the second main body 412 can connect the first chamber 121 and the second chamber 122. The second through hole 412a can be used to allow lines or pipes to pass through.

[0116] For example, lines may include electrical cables, etc., and pipes may include coolant pipes, etc.

[0117] Since the first main body 411 and the second main body 412 are provided with through holes that allow lines or pipes to pass through, electrical lines, fluid lines, etc., can be passed through the partition using these through holes, facilitating the layout of lines and pipes. Furthermore, these lines and pipes can be arranged near the enclosure wall on the side where the through holes are located, which helps improve the compactness and neatness of the wiring. Moreover, when removing the cover plate 42 to maintain the bus assembly 20, the lines or pipes passing through the through holes are not affected, improving maintenance convenience.

[0118] In some embodiments, the first main body portion 411 is provided with a first enclosure structure 411b, the first enclosure structure 411b being configured to surround at least a portion of the entire circumference of the first through hole 411a; and / or, the second main body portion 412 is provided with a second enclosure structure 412b, the second enclosure structure 412b being configured to surround at least a portion of the entire circumference of the second through hole 412a.

[0119] As an example, as shown in Figures 2 and 3, the first enclosure structure 411b can be arranged around the first through hole 411a with a partial gap, and this gap is opposite to the first opening 41a, for example, on the side wall facing the housing 10. The second enclosure structure 412b can be arranged around the second through hole 412a with a partial gap, and this gap is opposite to the first opening 41a, for example, on the side wall facing the other side of the housing 10.

[0120] The first enclosure structure 411b and the second enclosure structure 412b can be formed to stand upright relative to the partition member 40, specifically relative to the first main body 411 and the second main body 412. The standing height can be appropriately set according to the situation, as long as it can block condensate. The first enclosure structure 411b and the second enclosure structure 412b can be formed on the first main body 411 and the second main body 412 by means of welding, threaded connection, or integral manufacturing. The formation of the first enclosure structure 411b and the second enclosure structure 412b on the first main body 411 and the second main body 412 is to accommodate the layout of the lines and pipes, and to match the first through hole 411a and the second through hole 412a.

[0121] The first enclosure structure 411b and the second enclosure structure 412b can block condensate water and prevent condensate water from entering the first chamber 121 through the first through hole 411a and the second through hole 412a, thereby reducing the risk of short circuit in the busbar assembly 20.

[0122] In some embodiments, as shown in FIG2, the partition is configured as a bent plate, the bent plate including a first bent segment 421, a second bent segment 422 and a third bent segment 423 connected in sequence, and the third bent segment 423 is located closer to the bearing surface than the first bent segment along the first direction Z.

[0123] Therefore, by forming the partition into a bent plate, clearance space can be provided as needed within the first chamber 121 and / or the second chamber 122, which helps to improve the flexibility and compactness of the layout. The bent plate will be described in more detail later.

[0124] In some embodiments, the energy storage device further includes a door 50, which is connected to the housing 10 and configured to at least close or open the electrical compartment 12 relative to the outside.

[0125] Optionally, the hatch 50 can be a separate hatch for enclosing the electrical compartment 12, or it can be a shared hatch for enclosing the electrical compartment 12 and other compartments.

[0126] Since the hatch 50 can either close or open the electrical compartment 12 relative to the external environment, it is beneficial to protect the electrical components inside the electrical compartment 12. Moreover, when the hatch 50 only closes the electrical compartment 12, when operating electrical control components such as power distribution switches, maintaining busbar components, or performing other work inside the electrical compartment 12, only the electrical compartment 12 can be opened or closed, reducing interference to other spaces such as the battery compartment 11.

[0127] In some embodiments, as shown in FIG1, the first chamber 121 has a first chamber wall 121a that closes a portion of the hatch of the electrical compartment 12, and the hatch 50 closes the remainder of the hatch of the electrical compartment 12.

[0128] As shown in Figure 1, the lower part of the hatch of the electrical compartment 12 is enclosed by a first chamber wall 121a. The first chamber wall 121a may be a portion of the outer wall of the housing 10. Optionally, a reinforcing member (e.g., a door frame member or a threshold) may be added to the portion of the first chamber wall 121a near the doorway of the second chamber 122. The remaining portion of the hatch of the electrical compartment 12 is closed by a hatch 50. Optionally, the size of the hatch 50 can be arbitrarily set as long as it can close the remaining portion of the hatch of the electrical compartment 12. In a specific embodiment, the hatch 50 is formed to close the doorway of the second chamber 122, and the hatch 50 and the first chamber wall 121a together close the hatch of the electrical compartment 12.

[0129] This facilitates the miniaturization of the hatch 50, reduces its weight, and makes it easier to open and close; it also helps to reduce the overall weight of the energy storage device.

[0130] In some embodiments, as shown in FIG1, the partition 40 is connected to the first end 121b of the first chamber wall 121a on the side near the hatch 50 when the hatch 50 is closed.

[0131] Therefore, the hatch 50 can close the entire electrical compartment 12 simply by sealing the second chamber 122. Furthermore, since the partition 40 can be connected to the first end 121b, it can be reliably supported. Moreover, the partition 40 can be positioned low, facilitating the installation or maintenance of the busbar assembly 20 within the first chamber 121 by operators.

[0132] In some embodiments, as shown in FIG1, the hatch 50, when the hatch is closed, has a main control box 61 on the door body facing the second chamber 122. The partition 40 includes a partition plate, which is configured as a bent plate. The bent plate includes a first bent section 421, a second bent section 422, and a third bent section 423 connected in sequence. The third bent section 423 is connected to the first end 121b. When the hatch 50 is closed, and when the main control box 61 is projected onto the same projection plane in a direction perpendicular to the third bent section 423, the projection of the main control box 61 partially overlaps with the projection of the third bent section 423. Furthermore, the main control box approaches or abuts the second bent section.

[0133] A main control box 61 is provided on the door body on the inside of the hatch 50 facing the electrical compartment 12. When the hatch 50 closes the electrical compartment 12, the main control box 61 is at least partially located in the second chamber 122.

[0134] The bend plate is formed to provide clearance above the third bend section 423, at least to allow clearance for the lower part of the main control box 61. Specifically, the bend plate is formed such that, with the hatch 50 closed, when projected onto the same projection plane in a direction perpendicular to the third bend section 423, the projection of the main control box 61 partially overlaps with the projection of the third bend section 423. This partial overlap includes the projection of the main control box 61 not exceeding the projection of the third bend section 423 along the depth direction of the electrical compartment 12 (e.g., the second direction Y). Furthermore, the lower part of the main control box 61 approaches or abuts the second bend section 422, specifically abutting the surface of the second bend section 422 facing the hatch 50. That is, a portion of the main control box 61 is located in the recessed space formed by the second bend section 422 and the third bend section 423.

[0135] Therefore, by placing the main control box 61 in the hatch 50, the space inside the second chamber 122 and the installation position inside the second chamber can be fully utilized; by configuring the partition as a bent plate and providing clearance space for the main control box 61, the compactness of the component layout inside the second chamber 122 can be improved.

[0136] In some embodiments, the housing 10 is further provided with an air duct 64, the vent of the air duct 64 being located in the second chamber 122; the door of the hatch 50 is further provided with a fan 62, and when the hatch 50 closes the electrical compartment 12, the fan 62 is at least partially located in the second chamber 122, and the airflow outlet of the fan 62 corresponds to the vent of the air duct 64.

[0137] In some embodiments, in the event of an abnormal situation within the electrical compartment 12, such as a fire producing smoke, the fan 62 can be activated to extract the smoke from the electrical compartment 12 through the air duct 64 when the smoke concentration reaches a threshold, thereby reducing the risk of heat spread. The fan 62 may be, for example, an explosion-proof fan.

[0138] In some embodiments, the ventilation opening of the air duct 64 is located at an upper position in the second chamber 122, and correspondingly, the airflow delivery port of the fan 62 is also located at an upper position in the door 50. In some embodiments, the airflow delivery port of the fan 62 is an air outlet. Of course, the airflow delivery port can also be an air inlet, and the fan 62 blows air into the air duct 64, and the air duct 64 can be provided with an outlet.

[0139] By arranging the ventilation openings of the air duct 64 in the second chamber 122, it is beneficial to further utilize the space of the second chamber 122. With the fan 62 installed in the door 50, when the door 50 closes the electrical compartment 12, the fan 62 is at least partially located in the second chamber 122, which can make full use of the space of the electrical compartment 12, especially the second chamber 122, and maintenance can be carried out by opening the door, thus improving maintenance convenience.

[0140] In some embodiments, as shown in FIG1, the door body of the hatch 50 is also provided with a control device 63, which is located at least partially in the second chamber 122 when the hatch 50 closes the electrical compartment 12.

[0141] In a specific example, control device 63 may include a control panel, and further, may include a fire control panel.

[0142] By placing the control device 63 on the hatch 50, at least a portion of the control device 63 is located in the second chamber 122 when the hatch 50 is closed to the electrical compartment 12, which can further make full use of the space of the second chamber 122. Moreover, since the control device 63 is placed on the hatch 50, the operator can identify the control device 63 without having to search for it, which facilitates the operation of the control device 63.

[0143] In some embodiments, as shown in FIG1, a fire-fighting component 65 is also provided in the second chamber 122, and the fire-fighting component is mounted on the side wall of the housing 10.

[0144] In some embodiments, in the event of an abnormal situation within the electrical compartment 12, such as a fire, the fire suppression system 65 can be activated via the control switch of the control device 63 to extinguish the fire. For example, the fire suppression system 65 may be located on the inner wall of the enclosure 10 along the second direction Y.

[0145] With the fire-fighting component 65 installed in the enclosure 10 and the fire control panel (control device 63) installed in the door 50, and both the fire-fighting component 65 and the fire control panel (control device 63) located in the second chamber 122, the space of the electrical compartment 12 can be fully utilized while meeting fire protection requirements.

[0146] In some embodiments, as shown in FIG1, the main control box 61, the control device 63, and the fan 62 are arranged sequentially from bottom to top along the height direction (first direction Z) of the hatch 50. This arrangement facilitates the operation of the main control box 61 and the control device 63.

[0147] In some embodiments, the accommodating space also includes a cooling chamber 13, which houses a portion of a cooling system, including at least a cooling unit and cooling pipes.

[0148] The cooling unit is used for heat exchange with the battery device, and the cooling pipeline is used to transport the cooling medium.

[0149] By setting up the cooling compartment 13 independently of the electrical compartment 12 and the battery compartment 11, interference between the compartments can be reduced.

[0150] In some embodiments, the cooling compartment 13 and the electrical compartment 12 are arranged on the same side of the battery compartment 11.

[0151] For example, along the third direction Y, the cooling compartment 13 and the electrical compartment 12 may be located on the same end side of the battery compartment 11, and along the second direction Y, the cooling compartment 13 and the electrical compartment 12 may be arranged adjacent to each other.

[0152] In one specific embodiment, the container 10 is generally formed in a cuboid shape (e.g., a shipping container shape), having edges in the length direction, edges in the width direction, and edges in the height direction, wherein the edges in the length direction are longer than the edges in the width direction and the edges in the height direction. The electrical compartment 12 and the cooling compartment 13 can be arranged on one side of the container 10 in the length direction.

[0153] The cooling chamber 13 and the electrical chamber 12 are located on the same side of the battery compartment 11, which allows the cooling chamber 13 and the electrical compartment 12 to be arranged as compactly as possible, leaving most of the space of the housing 10 to the battery compartment 11, so that the battery compartment 11 can accommodate more battery devices, thereby improving the volumetric energy density of the energy storage device.

[0154] The following description uses Figures 1 to 3 to illustrate a specific example of the present disclosure.

[0155] This disclosure provides a containerized energy storage device, including a container 10. The container 10 includes a battery compartment 11, an electrical compartment 12, and a cooling compartment 13, with a door 50 provided for the electrical compartment 12. As shown in FIG1, a main control box 61, a fire control panel (control device 63), and an explosion-proof fan (fan 62) are installed on the door 50. A side-wall fire protection component (fire protection unit 65) is installed on the container wall in the electrical compartment 12. The air duct 64 of the fan 62 is placed in the upper part of the electrical compartment along the first direction Z. The power distribution cabinet 30 is located below the air duct 64, and the electrical compartment partition (separator 40) is located below the power distribution cabinet 30 along the first direction Z. Below the electrical compartment partition (separator 40) is the entire manifold (first chamber 121).

[0156] As shown in Figure 2, the electrical compartment partition (separator 40) uses a removable cover plate 42 in the middle, with non-removable left and right partitions (first main body 411 and second main body 412) on both sides. The cover plate 42 is bolted to the housing 10. After removing the bolts on the cover plate 42, the housing can be removed through the handle in the middle of the cover plate 42. As shown in Figure 3, the non-removable partitions on both sides (first main body 411 and second main body 412) are used for wiring and piping. This facilitates the maintenance of the overall manifold without affecting the disassembly, assembly, and wiring of the electrical compartment, while still ensuring normal partition isolation. Based on the above layout, the interior of the electrical compartment 12 can achieve a high degree of integration. The separator 40 avoids the space along the third direction X for equipment installation on the electrical compartment door 50, and provides more space for wiring and maintenance in the manifold, resulting in a reasonable and efficient layout.

[0157] As shown in Figure 3, the locking connection between the detachable cover plate 42 and the housing 10 is sealed with a partition gasket (sealant 43). The bottom of the cover plate 42 is coated with a polyurethane spray, which can prevent condensation and provide partial heat insulation. This separates the high-voltage busbar area from the low-voltage electrical area, and minimizes the accumulation of condensate in the electrical compartment due to the temperature difference caused by the busbar's operating temperature rise. This also helps to improve the working environment of the electrical compartment.

[0158] This embodiment enables a high degree of integration of the electrical and fire protection components of the energy storage container, improves space utilization, meets IP55 protection requirements, and makes the entire equipment easy to maintain.

[0159] The above embodiments are merely illustrative of the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure, and all should be covered within the scope of this disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of this disclosure.

Claims

An energy storage device, The enclosure includes a housing that defines a storage space, which includes a battery compartment and an electrical compartment. The battery compartment houses multiple battery devices, and the electrical compartment is equipped with partitions. The partition divides the electrical compartment into a first chamber and a second chamber. The first chamber has a first opening that opens toward a space inside the second chamber. The partition is configured to close the first opening and be at least partially openable relative to the first opening to allow communication between the first chamber and the second chamber. At least one busbar assembly is disposed in the first chamber and connected to the battery device. At least one electrical control assembly is disposed in the second chamber. According to claim 1, the energy storage device, wherein, The first chamber and the second chamber at least partially overlap along a first direction, wherein the first direction is perpendicular to the bearing surface used to support the energy storage device. According to claim 2, the energy storage device, wherein, The separator includes a partition, which comprises a partition body and a cover plate. The partition body is connected to the box body, and the partition body is provided with the first opening. The cover plate is connected to the partition body and is configured to close the first opening or open relative to the first opening. According to claim 3, the energy storage device, wherein, The partition body includes a first main body and a second main body. The first main body and the second main body are respectively connected to the housing, and the first main body and the second main body are arranged at a distance in a second direction. The first opening is located between the first main body and the second main body. The cover plate detachably covers the first opening. The second direction intersects with the first direction. The energy storage device according to claim 3 or 4, wherein, A sealing element is provided between the partition body and the cover plate, and the sealing element is arranged around the first opening. The energy storage device according to any one of claims 3 to 5, wherein, The cover plate includes a cover plate body and a heat insulation layer, wherein the heat insulation layer is stacked on the cover plate body. The energy storage device according to claim 6, wherein, The insulation layer is laminated on the surface of the cover plate facing the first chamber when the first opening is closed, and / or the insulation layer includes a polyurethane layer. The energy storage device according to any one of claims 3 to 6, wherein, The cover plate is equipped with a handle. The energy storage device according to claim 4, wherein, The first main body is provided with a first through hole for connecting the first chamber and the second chamber; and / or, The second main body is provided with a second through hole for connecting the first chamber and the second chamber. The energy storage device according to claim 9, wherein, The first main body is provided with a first enclosure structure, the first enclosure structure being configured to surround at least a portion of the entire circumference of the first through hole; and / or, The second main body is provided with a second enclosure structure, which is configured to surround at least a portion of the entire circumference of the second through hole. The energy storage device according to any one of claims 3 to 10, wherein, The partition is configured as a bent plate, which includes a first bent section, a second bent section, and a third bent section connected in sequence. Along the first direction, the third bending segment is located closer to the bearing surface than the first bending segment. The energy storage device according to any one of claims 1 to 11, wherein, The energy storage device also includes a hatch connected to the housing and configured to at least close or open the electrical compartment relative to the external environment. The energy storage device according to claim 12, wherein, The first chamber has a first chamber wall that closes a portion of the hatch of the electrical compartment, and the hatch closes the remainder of the hatch of the electrical compartment. The energy storage device according to claim 13, wherein, The partition is connected to the first end of the first chamber wall on the side near the hatch when the hatch is closed. The energy storage device according to claim 14, wherein, With the hatch closed, a main control box is located on the door facing the second chamber. The separator includes a partition, which is configured as a bent plate. The bent plate includes a first bent segment, a second bent segment, and a third bent segment connected in sequence, with the third bent segment connected to the first end. With the hatch closed, when projected onto the same projection plane in a direction perpendicular to the third bend, the projection of the main control box partially overlaps with the projection of the third bend, and the main control box approaches or abuts against the second bend. The energy storage device according to any one of claims 12 to 15, wherein, The box is also equipped with an air duct, and the air vent of the air duct is located in the second chamber; The door is also equipped with a fan. When the door closes the electrical compartment, the fan is at least partially located in the second chamber, and the airflow outlet of the fan corresponds to the ventilation opening of the air duct. The energy storage device according to any one of claims 12 to 15, wherein, The hatch is also equipped with a control device, which is located at least partially in the second chamber when the hatch closes the electrical compartment. The energy storage device according to any one of claims 13 to 15, wherein, The second chamber is also equipped with fire-fighting components, which are mounted on the side wall of the enclosure. The energy storage device according to any one of claims 1 to 18, wherein, The accommodating space also includes a cooling chamber, which houses a portion of a cooling system, including at least a cooling unit and cooling pipes. The energy storage device according to claim 19, wherein, The cooling compartment and the electrical compartment are located on the same side of the battery compartment.

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