Modular energy storage system container

Abstract

A modular energy storage system (ESS) container comprising a plurality of modular blocks for solving the problem described above is disclosed. The container comprises at least one battery block comprising a battery rack and a DC power control device (DCPM) for controlling the battery rack; an electrical block comprising a power conversion device (PCS); and a chiller block providing cooling to the battery block; wherein the battery block, the electrical block, and the chiller block are directly joined to each other in a horizontal or vertical direction without a separate common lower support structure (skid), and electrical and fluid connections can be made through the joint surfaces between the blocks.

Description

Technology Field

[0001] The present invention relates to an energy storage system, and specifically, to an assembleable modular energy storage system container. Background Technology

[0002] With the expansion of energy supply, the demand for large-capacity energy storage systems (ESS) is surging, and container-type ESS is widely used for ease of installation and mobility.

[0003] A typical containerized energy storage system can include various control and electrical components inside a standardized cargo container.

[0004] Conventional containers can be designed based on a skid, an integrated support structure at the bottom. The skid firmly supports multiple battery racks weighing thousands of kilograms from below and can serve as a passageway for complex power cables and cooling water piping between system components.

[0005] These conventional one-piece containers may have limitations on transport weight. As energy density increases, if the interior of a standard container of 20 feet or more is filled with batteries, the excessive weight may exceed the transport weight limits of container ships, thereby reducing logistics efficiency.

[0006] Furthermore, conventional integrated containers can entail construction complexity at the installation site. Connecting the container to the external power grid requires a large volume of cable laying and wiring work to be performed individually, which can extend the construction period and increase the risk of fire due to assembly errors. Prior art literature

[0007] Republic of Korea Registered Patent No. KR 10-2712767 The problem to be solved

[0008] The present disclosure is conceived in response to the aforementioned background art and aims to provide a modular energy storage system container comprising a plurality of modular blocks having structural efficiency and / or ease of parallel expansion.

[0009] The technical problems of the present disclosure are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0010] A modular energy storage system (ESS) container for solving the aforementioned problems is disclosed. The container comprises: at least one battery block including a battery rack and a DC power control device (DCPM) for controlling the battery rack; an electrical block including a power conversion device (PCS); a chiller block providing cooling to the battery block; and a first common lower support structure (skid) on which the blocks are seated. The container may also include: a first internal busbar for transmitting power to the first common lower support structure (skid) and the blocks inside the container; and a skid connection portion that electrically directly connects the second internal busbar of the second common lower support structure (skid) of another modular energy storage system container disposed adjacent to the container.

[0011] In one embodiment, power output from a power conversion device (PCS) included in the electrical block of the container can be integrated through the first internal busbar, the skid connection part, and the second internal busbar and output to the outside of the container and other containers other than the container.

[0012] In one embodiment, the container further includes a single external connection port provided in the first common lower support structure of the container, and power integrated through the skid connection is output to an external site power grid only through the single external port, so that individual site cabling work of the other container can be omitted under the combined structure of the containers.

[0013] In one embodiment, the skid connection may connect the first common lower support structure and the second common lower support structure with a cable.

[0014] In one embodiment, the cable is a flexible cable, and the skid connection includes quick connectors provided at both ends of the flexible cable, so as to be able to physically and electrically connect the first and second common lower support structures while absorbing vibration and assembly errors.

[0015] In one embodiment, the skid connection may connect the first common lower support structure and the second common lower support structure with a flexible busbar.

[0016] In one embodiment, the container further includes a cable gland or busbar bushing coupled to a side hole of the first common lower support structure and the second common lower support structure through which the skid connection passes; and the cable gland or the busbar bushing can perform waterproof and dustproof functions by maintaining the seal of the skid connection.

[0017] In one embodiment, the first internal busbar is formed to extend along the longitudinal direction in the internal space of the first common lower support structure in place of a cable, thereby improving the space efficiency and electrical efficiency of the container.

[0018] In one embodiment, the skid connection provides a hierarchical power routing structure between the container and a container other than the container, so that the first common lower support structure is directly electrically connected to the power conversion device (PCS) of the electrical block mounted on top, and the second common lower support structure can be electrically connected to the power conversion device (PCS) of the electrical block via the first internal busbar through the skid connection.

[0019] In one embodiment, the container and the other modular energy storage system container are arranged adjacently to each other in the transverse direction, and the first common lower support structure and the second common lower support structure can form a parallel connection structure in the transverse direction through the skid connection to allow expansion of the modular containers.

[0020] In one embodiment, the blocks are placed in a stacked structure on the upper part of the first common lower support structure, and a plurality of battery blocks are arranged vertically in a stacked layer on the first common lower support structure, and the battery power inside the stacked battery blocks can be collected by the DC power control device (DCPM) provided at the bottom of the battery block of the bottom layer of the stacked structure and then routed horizontally toward the power conversion device (PCS) of the electrical block.

[0021] In one embodiment, the container further comprises a semi-automatic twistlock and a C-shape bracket for securing the connection between the blocks seated on the first common lower support structure, wherein the semi-automatic twistlock joins the upper and lower vertical edges of the blocks and the C-shape bracket joins the upper edges of the horizontal joint surfaces of the blocks.

[0022] In one embodiment, the first inner busbar may be embedded in the interior of the first common lower support structure during the factory assembly process prior to installation at an external site.

[0023] In one embodiment, the container further includes a main power cable extending from the electrical block located at the top or outside of the first common lower support structure; and the main power cable may be configured to be introduced into the interior of the first common lower support structure so that power output from the electrical block is directly electrically interfaced with the first internal busbar.

[0024] In one embodiment, the container further includes a cooling water plumbing path provided inside the first common lower support structure; and the first common lower support structure may be configured to share the cooling water plumbing path inside in parallel with the power connection path through the first internal busbar, thereby supplying cooling water supplied from the chiller block to each block inside the container in parallel.

[0025] In one embodiment, the container comprises a plurality of battery blocks that are vertically stacked, wherein the plurality of battery blocks are integrated and connected into a single space to jointly discharge pressure upon explosion, and a ceiling-type explosion-proof panel for discharging explosion pressure and flames may be installed on the uppermost ceiling of the integrated battery blocks.

[0026] In one embodiment, the container is assembled in a stacked structure in which at least one battery block is provided in multiple units and stacked vertically, and in order to enable the design of the stacked structure without interference, each of the multiple battery blocks may have an independent explosion-proof structure for each block, including a rear wall-type explosion-proof panel individually disposed on the rear wall of the block.

[0027] In one embodiment, power output from the battery block can be transmitted from the DC power control device (DCPM) to the first internal busbar embedded in the first common lower support structure via sequentially passing through the power conversion device (PCS) and fuse of the electrical block, and then output to the external site power grid via sequentially passing through the skid connection and the second internal busbar.

[0028] A modular energy storage system (ESS) container comprising a plurality of modular blocks for solving the problem described above is disclosed. The container comprises at least one battery block comprising a battery rack and a DC power control device (DCPM) for controlling the battery rack; an electrical block comprising a power conversion device (PCS); and a chiller block providing cooling to the battery block; wherein the battery block, the electrical block, and the chiller block are directly joined to each other in a horizontal or vertical direction without a separate common lower support structure (skid), and electrical and fluid connections can be made through the joint surfaces between the blocks.

[0029] In one embodiment, the DC power control device (DCPM) is positioned in the inner lower part of the battery block in place of the common lower support structure (skid) and can control power by being directly connected to the built-in battery rack.

[0030] In one embodiment, the electrical block is configured to further include a transformer, an uninterruptible power supply (UPS), a dehumidifier, a fire alarm controller (FACP), and a heat exchanger together with the power conversion device (PCS) inside, so as to replace the function of the common lower support structure (skid).

[0031] In one embodiment, the container further includes a cable connected to an external site power grid that is provided outside the container and connected to transmit and receive power to the container; and the cable may be directly introduced into the container through the rear panel or lower panel of the electrical block and connected to a transformer or power conversion device (PCS) inside the electrical block.

[0032] In one embodiment, the container further includes a block connecting member that directly connects external ports of the battery block and the electrical block via a quick connector, and the block connecting member may allow power output from a plurality of battery blocks to be directly routed to the electrical block.

[0033] In one embodiment, the electrical connection between the DC power control device (DCPM) of the battery block and the power conversion device (PCS) of the electrical block can be directly coupled to each other through the block connecting member including the quick connector and cable gland structure provided on the lower left or right side of each block.

[0034] In one embodiment, a gland structure including a gasket, a lock-nut, and a dedicated connector and a flexible cable are applied to the hole of the block connecting member through which the cable between the blocks passes, so that vibration and assembly errors are absorbed and a waterproof or dustproof function can be performed.

[0035] In one embodiment, the cooling pipe between the chiller block and the battery block is directly connected in a horizontal or vertical direction through a quick connector provided on the joint surface of the chiller block and the battery block, and the cooling water generated in the chiller block can be directly supplied to each battery of the battery block.

[0036] In one embodiment, as the lower support structure (skid) is omitted, the routing of cables and piping between the blocks is routed only in the horizontal direction between the plurality of battery blocks, and can be routed simultaneously in the horizontal and vertical directions from the chiller block and the electrical block to the battery block.

[0037] In one embodiment, the battery block is arranged in a vertical two-layer stack, and the chiller block includes an independent first chiller and a second chiller, wherein, without additional pump or motor mounting, the piping of the first chiller is directly connected to the battery block of the upper layer, and the piping of the second chiller can be directly connected to the battery block of the lower layer.

[0038] In one embodiment, the container further comprises a semi-automatic twistlock for joining the vertical corners between the blocks; and a C-shape bracket for joining the upper corners of the horizontal joint surfaces between the blocks; and the semi-automatic twistlock and the C-shape bracket may provide a direct joining structure to join the shapes between the blocks and support the load by replacing the lower support structure (skid).

[0039] In one embodiment, the container further includes a rear wall type explosion-proof panel that is individually divided and installed on the rear of the battery block; and the rear wall type explosion-proof panel is positioned on the rear of each battery block instead of a roof surface to allow for the application of a stacked structure of two or more layers to the plurality of blocks, and the rear wall type explosion-proof panel may be configured to maintain a folded state without protruding parts under normal conditions and to open up to discharge flames upward upon explosion.

[0040] In one embodiment, the rear wall-type explosion-proof panel is configured with a thickness to prevent structural interference during stacked assembly of the plurality of blocks, and is configured such that the angle at which the explosion-proof panel opens is limited to a preset upward angle when opened by an explosion, thereby reducing the required radius of the safety zone in the surrounding space.

[0041] In one embodiment, the battery block, the electrical block, and the chiller block are each formed in a 10-foot (ft) bi-con standard, and the plurality of blocks may be configured such that two blocks are combined during transport to be transported in a 20-foot high-cube (HC) container unit, so as to avoid the container transport weight limit that occurs when a battery is loaded inside.

[0042] In one embodiment, the battery block further comprises: a detachable assembly panel applied to the left side to allow the initial loading of an internal battery; and a double door that opens and closes applied to the front to allow maintenance; and external ports of the battery block, which are coupled with a block connecting member for electrical and fluid connection between the plurality of blocks, may be positioned at the lower part of the front of the battery block so as not to interfere with the opening space of the double door for maintenance.

[0043] In one embodiment, power output from the battery block can be transmitted to the busbar provided in the electrical block after sequentially passing through the DC power control device (DCPM), the power conversion device (PCS) of the electrical block, and a fuse, and then directly output to an external site power grid. Effects of the invention

[0044] The present disclosure can provide a modular energy storage system container having structural efficiency and / or ease of parallel expansion.

[0045] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description below. Brief explanation of the drawing

[0046] Various aspects are now described with reference to the drawings, wherein similar reference numbers are used to collectively refer to similar components. In the following embodiments, for illustrative purposes, a number of specific details are presented to provide a comprehensive understanding of one or more aspects. However, it will be apparent that such aspect(s) may be practiced without these specific details. FIG. 1 is a drawing for illustrating a modular energy storage system container according to one embodiment of the present disclosure. FIG. 2 illustrates, exemplarily, the connection between blocks constituting a modular energy storage system container according to one embodiment of the present disclosure. FIG. 3 is a diagram illustrating various block connection structures constituting a modular energy storage system container according to one embodiment of the present disclosure. FIG. 4 is a drawing for explaining an explosion-proof panel provided in a modular energy storage system container according to one embodiment of the present disclosure. FIG. 5 is a drawing illustrating piping and cable connections within a modular energy storage system container according to one embodiment of the present disclosure. FIG. 6 is a drawing for explaining the configurations within a block constituting a modular energy storage system container according to one embodiment of the present disclosure. FIG. 7 is a drawing for exemplarily illustrating the connection structure of blocks constituting a modular energy storage system container according to one embodiment of the present disclosure. FIG. 8 is a drawing for exemplarily illustrating the internal structure and connection relationships of blocks constituting a modular energy storage system container according to one embodiment of the present disclosure. FIG. 9 is a drawing for explaining a member connecting power and cooling water pipes included in a modular energy storage system container according to one embodiment of the present disclosure. Specific details for implementing the invention

[0047] Various embodiments and / or aspects are now disclosed with reference to the drawings. For illustrative purposes, numerous specific details are disclosed in the following description to aid in a general understanding of one or more aspects. However, it will be apparent to those skilled in the art that these aspects may be practiced without such specific details. The following description and the accompanying drawings describe specific exemplary aspects of one or more aspects in detail. However, these aspects are exemplary, and some of the various methods in the principles of the various aspects may be used, and the descriptions are intended to include all such aspects and their equivalents. Specifically, terms such as “exemplary,” “example,” “aspect,” and “example” as used herein may not be interpreted as implying that any described aspect or design is superior or advantageous over other aspects or designs.

[0048] Hereinafter, identical or similar components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. Furthermore, in describing the embodiments disclosed in this specification, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the embodiments disclosed in this specification. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings.

[0049] Although terms such as first, second, etc. are used to describe various elements or components, it goes without saying that these elements or components are not limited by these terms. These terms are used merely to distinguish one element or component from another. Therefore, it goes without saying that the first element or component mentioned below may be the second element or component within the technical scope of the present invention.

[0050] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0051] Furthermore, the term "or" is intended to mean an implicit "or" rather than an exclusive "or." That is, unless otherwise specified or evident from the context, "X uses A or B" is intended to mean one of the natural implicit substitutions. In other words, if X uses A; if X uses B; or if X uses both A and B, "X uses A or B" may apply to any of these cases. Additionally, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the enumerated related items.

[0052] Additionally, the terms “comprising” and / or “comprising” should be understood to mean that such features and / or components are present, but not to exclude the presence or addition of one or more other features, components, and / or groups thereof. Furthermore, unless otherwise specified or clearly evident from the context to indicate a singular form, the singular in this specification and claims should generally be interpreted to mean “one or more.”

[0053] When it is stated that a component is "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, or that there may be other components in between. On the other hand, when it is stated that a component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0054] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification and do not inherently possess distinct meanings or roles.

[0055] The purpose and effects of the present disclosure, and the technical configurations for achieving them, will become clear by referring to the embodiments described in detail below in conjunction with the accompanying drawings. In describing the present disclosure, if it is determined that a detailed description of known functions or configurations might unnecessarily obscure the essence of the present disclosure, such detailed description will be omitted. Furthermore, the terms described below are defined considering their functions in the present disclosure, and these may vary depending on the intentions or practices of the user or operator.

[0056] However, the present disclosure is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to make the present disclosure complete and to fully inform those skilled in the art of the scope of the disclosure, and the present disclosure is defined only by the scope of the claims. Therefore, such definitions should be based on the content throughout this specification.

[0057] FIG. 1 illustrates, exemplarily, a modular energy storage system container (100A) and an expandable container system (100B) according to one embodiment of the present disclosure.

[0058] Referring to FIG. 1, a modular energy storage system container (100: 100A and 100B) comprising a plurality of modular blocks is disclosed. For example, reference numeral 100A refers to a modular energy storage system container, and reference numeral 100B may refer to a combined structure or combined system of modular energy storage system containers.

[0059] In the present disclosure, a modular block may refer to an independent functional container that constitutes a modular energy storage system container (100). For example, a modular block may be formed to have an external shape corresponding to the international standard 10-foot (ft) Bi-con standard.

[0060] In one embodiment, the modular block can be manufactured independently by dividing it into a battery block (110), an electrical block (130), and a chiller block (120) according to the main device and function to be accommodated inside.

[0061] In one embodiment, the modular blocks are provided with a coupling structure that supports mutual physical, electrical, and fluid connections, thereby forming an architectural structure capable of vertical stacking as well as horizontal expansion to meet the required capacity and site conditions of the installation site.

[0062] In one embodiment, the battery block (110) may have a plurality of batteries for storing energy and a DC power control device (DCPM) inside that controls and manages power output from the battery rack.

[0063] In one embodiment, a deflagration venting system (DVS) may be installed on the wall (e.g., rear wall) of the battery block (110) to safely vent pressure and flames generated during an internal explosion.

[0064] In one embodiment, the battery block (110) may include an air intake and / or exhaust fan for ventilating internal heat generated by the battery pack to the outside.

[0065] In the present disclosure, a modular energy storage system container (100) may refer to an integrated energy solution formed by combining a plurality of modular blocks to store and manage large-capacity power (e.g., 10 MWh per 30-foot installation area).

[0066] In one embodiment, the modular energy storage system container (100) may include at least one battery block (110) including a battery rack and a DC power control device for controlling the battery rack, an electrical block (130) including a power conversion device (PCS), and a chiller block (120) for providing cooling to the battery block (110).

[0067] In one embodiment, the modular energy storage system container (100) may be in the form of a battery block (110), an electrical block (130), and a chiller block (120) combined in various ways.

[0068] In one embodiment, the modular energy storage system container (100) may be in the form where the battery block (110), the electrical block (130), and the chiller block (120) are directly connected to each other in a horizontal or vertical direction.

[0069] In one embodiment, the modular energy storage system container (100) may be in a combined form including a battery block (110), an electrical block (130), and a chiller block (120), in addition to a separate common lower support structure (140).

[0070] Depending on the implementation mode, the modular energy storage system container (100) may be configured such that the components of the common lower support structure (140) are included or arranged in other modules of the modular energy storage system container (100) without a separate common lower support structure (140).

[0071] A modular energy system container (100) may have a structure that can be connected to other modular energy system containers (e.g., in parallel).

[0072] In one embodiment, an energy storage system container may be an integrated infrastructure structure for storing, controlling, converting, and supplying large-capacity power to an external power grid. The modular energy storage system container illustrated in FIG. 1 of the present disclosure may be composed of a first modular energy storage system container (100A) operating as a single unit and an expandable (or combined) container system (100B) in which multiple single units are combined in parallel to collect large-capacity power. In the present disclosure, "container" refers to a single container, and "container system" may refer to a combined structure of multiple containers. Although FIG. 1 exemplarily illustrates the first modular energy storage system container (100A) as a structure including a skid (140), depending on the implementation mode, a structure that does not include a skid (140) and in which the components of the skid (140) are arranged (e.g., distributed) within the modules inside the container (100A), such as FIG. 6, may also be included within the scope of the present disclosure.

[0073] The first modular energy storage system container (100A) may include a plurality of individual blocks (120, 130, 140) that are physically and spatially divided according to functional purposes, and these may be stacked and combined in horizontal and vertical directions to form a single three-dimensional block-type architecture. As an example of a parallel configuration, the specifications of the system can be expanded in various ways by combining individual blocks of 10-foot (ft) bi-con specifications into a 20-foot container, a 30-foot high-cubic (HC) container, or a mega-scale unit of 40 feet or more. Through this modular block division and stacking architecture, load limit issues that occur during container transportation can be avoided at the source, and cooling and power modules can be selectively combined to suit the site environment (e.g., desert, extreme environment, humid region), thereby maximizing the space efficiency, installation freedom, and transportation cost reduction effects of the container.

[0074] The modular blocks of the above-described container (100A) may include at least one battery block (110) accommodating a battery rack, an electrical block (130) accommodating a power conversion device (PCS), and a chiller block (120) supplying cooling water. The battery block (110) may be arranged in a vertical stacked structure, for example, of two layers or more, and the chiller block (120) and the electrical block (130) may be stacked vertically on one side of the battery block (110) and combined with each other. For example, a structure in which the chiller block (120) is located on the first layer and the electrical block (130) is located on the second layer, or a structure in which the electrical block (130) is located on the first layer and the chiller block (120) is located on the second layer, or a structure in which they are housed separated by a partition within an integrated housing, may all be included within the scope of the container structure of the present disclosure. Through this functional block independence structure, when a specific device (e.g., a chiller or PCS) fails or is replaced, only that block can be individually separated and replaced with a next-generation high-efficiency model without dismantling the entire system, thereby drastically reducing maintenance time and dramatically improving the life cycle efficiency of the system.

[0075] In one embodiment, the battery block (110), the electrical block (130), and the chiller block (120) may each be formed in a 10-foot (ft) bi-con standard. In addition, the plurality of blocks may be configured so that two blocks are combined during transport to be transported in a 20-foot high-cubic container unit, so as to avoid the container transport weight limit that occurs when a battery is loaded inside.

[0076] In one embodiment, the common lower support structure (140) may include components located at the bottom of the modular energy storage system container (100) to physically support a plurality of modular blocks positioned on top and to manage infrastructures inside the container. For example, the common lower support structure (140) may include components for managing power within the modular energy storage system container (100) (e.g., power supply unit, power control unit, power converter, transformer, heat exchanger, battery management system, power path and busbar for connecting power), and a device for detecting a fire within the modular energy storage system container (100) and providing an alarm thereon.

[0077] In the present disclosure, the common lower support structure (140) may correspond to or include a skid.

[0078] In one embodiment, the busbar may be a rigid conductive power path provided to efficiently transmit high voltage and high current power within a modular energy storage system container (100) according to the present disclosure. For example, the busbar may serve as a main power line for collecting direct current power output from a plurality of battery racks and transmitting it to a power converter, or for transmitting alternating current power converted by the power converter to an external power grid.

[0079] In one embodiment, in a structure (100A) including a common lower support structure (SKID, 140), the busbar can be pre-embedded and arranged in parallel with the cooling water pipe (200) in the internal space. This eliminates complex wiring work at the site and provides the effect of supporting rapid power system formation with only standardized block placement.

[0080] In one embodiment, the busbar may be embedded within a common sub-support structure during the factory manufacturing process prior to installation at an external site. For example, a busbar formed of a rigid metal body may provide structural rigidity that does not deform even under electromagnetic repulsion or external vibrations.

[0081] In one embodiment, the busbar can contribute to increasing the thermal stability of a container or container system by effectively dissipating heat generated during current flow through a large surface area.

[0082] In one embodiment, the busbar may be provided with an insulating coating, a heat shrink tube, or a separate insulating support on the surface of the busbar to prevent short-circuit accidents in a high-voltage environment.

[0083] In one embodiment, the busbar is formed to extend along the longitudinal direction within the internal space of a common lower support structure in place of a cable, thereby improving the space efficiency and electrical efficiency of the container.

[0084] Consequently, the busbar acts as a "power trunk" that electrically integrates each modular block, and can be a key power interface component of the container that maximizes internal space efficiency and reduces power loss by minimizing cable usage.

[0085] For example, the common lower support structure (140) is formed of a steel frame to firmly support loads such as high-density battery racks and heavy power conversion devices (PCS), and can serve to protect internal components from moisture or impact from the ground. For example, the common lower support structure (140) may be characterized by performing complex functions through a hollow space formed inside, going beyond a simple support structure. For example, the common lower support structure (140) may perform the function of providing a path to distribute power and cooling of the modular energy storage system container (100). For example, the common lower support structure (140) may provide a routing path where DC cables connecting modular blocks, AC power lines, and communication cables are laid. For example, the common lower support structure (140) may provide an integrated routing environment in which cooling water piping for delivering cooling water supplied from the chiller block (120) to each battery module is provided in parallel with the power path.

[0086] In one embodiment, the modular energy storage system container (100A) may be combined by including at least one or a plurality of battery blocks (110) (e.g., four), at least one electrical block (130), and at least one chiller block (120), and additionally including at least one common lower support structure (140). For example, when there are four plurality of battery blocks (110), the plurality of battery blocks (110) may be provided in a stacked form of two on top of the common lower support structure (140), and the electrical block (130) and chiller block (120) may be provided on top of the common lower support structure (140) at at least one side (e.g., left, right, top, bottom) of the battery blocks (110). For example, the electric field block (130) is located to the right of the battery block (110) on the upper part of the common lower support structure (140), and the chiller block (120) can be located on the upper part of the electric field block (130).

[0087] In one embodiment, if there are two or more battery blocks (110), they may be arranged in a vertical two-layer stacked configuration.

[0088] In one embodiment, when the battery blocks (110) are arranged in a stack, the chiller blocks (120) include independent first chillers and second chillers, and without additional pump or motor mounting, the piping of the first chiller can be directly connected to the battery blocks (110) of the upper layer, and the piping of the second chiller can be directly connected to the battery blocks (110) of the lower layer.

[0089] In one embodiment, the modular energy storage system container (100B) may be in the form of multiple modular energy storage system containers (100A) combined. For example, the modular energy storage system container (100B) may be in the form of one additional modular energy storage system container (100A) located at least one side (e.g., left, right, top, bottom) of the modular energy storage system container (100A) and combined.

[0090] In one embodiment, the modular energy storage system container (100) may be in the form of a plurality of modular energy storage system containers (100) combined, each comprising a different number of battery blocks (110), chiller blocks (120), and electrical blocks (130), and the number of each of the battery blocks (110), chiller blocks (120), and electrical blocks (130), the number of modular energy storage system containers (100) combined, and the location and method of combination are not limited to the examples listed.

[0091] In one embodiment, the modular energy storage system container (100) may be in the form where the battery block (110), the electrical block (130), and the chiller block (120) are directly joined to each other in a horizontal or vertical direction without a separate common lower support structure (140).

[0092] In one embodiment, a modular energy storage system container (100) without a separate common lower support structure (140) may be provided in a form in which the components included in the common lower support structure (140) are included in a battery block (110), an electrical block (130), and a chiller block (120) in place of the common lower support structure (140). For example, the battery block (110) may include a DC power control device that controls power by being directly connected to a battery rack embedded in the inner lower part of the battery block (110) in place of the common lower support structure (140). For example, the electrical block (130) may be configured to include a transformer, an uninterruptible power supply, a dehumidifier, a fire alarm controller, and a heat exchanger along with a power converter inside, thereby replacing the function of the common lower support structure (140). Accordingly, it is possible to implement an energy storage system container (100A) without a common lower support structure (140).

[0093] In one embodiment, the modular energy storage system container (100) may include a cable connected to an external site power grid that is provided on the outside of the container and connected to transmit and receive power to and from the container.

[0094] In one embodiment, the cable may be fed directly into the container through the rear panel or lower panel of the electrical block (130) and connected to a transformer or power converter inside the electrical block (130).

[0095] In one embodiment, the electrical connection between the DC power control device of the battery block (110) and the power converter of the electrical block (130) can be directly connected to each other via a block connecting member including a quick connector and a cable gland structure provided on the lower left or right side of each block.

[0096] In one embodiment, a gland structure including a gasket, a lock nut, and a dedicated connector and a flexible cable may be applied to the hole of the block connecting member through which the cable between the blocks passes. For example, the gland structure including a gasket, a lock nut, and a dedicated connector and the flexible cable may absorb vibrations caused by the movement of the modular energy storage system container (100) and errors caused during assembly, and may perform waterproof or dustproof functions. For example, absorbing vibrations and errors may mean reducing the generated vibrations and reducing errors caused during assembly.

[0097] In one embodiment, the cooling water piping between the chiller block (120) and the battery block (110) is directly connected in a horizontal or vertical direction through a quick connector provided on the joint surface of the chiller block (120) and the battery block (110), and the cooling water generated in the chiller block (120) can be directly supplied to each battery of the battery block (110).

[0098] In one embodiment, as the common lower support structure (140) is omitted, the routing of cables and piping between blocks is routed only in the horizontal direction between the plurality of battery blocks (110), and can be routed simultaneously in the horizontal and vertical directions from the chiller block (120) and the electrical block (130) to the battery block (110).

[0099] In one embodiment, as the common lower support structure (140) is omitted, power output from the battery block (110) is transmitted to the busbar provided in the electrical block (130) by sequentially passing through the DC power control device, the power converter of the electrical block, and the fuse, and then can be directly output to the external site power grid.

[0100] In one embodiment, a busbar may refer to a rigid conductive power path provided to efficiently transmit high voltage and high current power within a modular energy storage system container (100) according to the present disclosure. For example, a busbar may serve as a main power line for collecting direct current power output from a plurality of battery racks and transmitting it to a power converter, or for transmitting alternating current power converted by a power converter to an external power grid. For example, in a structure including a common lower support structure (140), the busbar may be pre-embedded and arranged in parallel with cooling water pipes within the space of the common lower support structure (140). This can provide the effect of eliminating complex wiring work at the site and supporting rapid power system formation through standardized block placement. For example, a busbar formed of a solid metal body may provide structural rigidity that does not deform even under electromagnetic repulsion or external vibrations. In addition, the busbar may contribute to increasing the thermal stability of the system by effectively dissipating heat generated during current flow through a large surface area. For example, busbars may be equipped with an insulating coating, heat shrink tubing, or separate insulating supports on their surfaces to prevent short-circuit accidents in high-voltage environments. Consequently, busbars serve as 'main power lines' that electrically integrate each modular block, and can be a key power interface component that maximizes internal space efficiency and reduces power loss by minimizing cable usage.

[0101] In one embodiment, the modular energy storage system container (100) may have electrical and fluid connections through the joint surfaces between the blocks.

[0102] In one embodiment, the modular energy storage system container (100) may include a block connecting member that directly connects external ports of a battery block (110) and an electrical block (130) via a quick connector.

[0103] In one embodiment, it may mean an integrated connection interface provided to support power and signal transmission between an external port and a modular energy storage system container (100) and an external environment, and circulation of a cooling medium (e.g., the cooling medium may be cooling water).

[0104] In one embodiment, the block connecting member may allow power output from a plurality of battery blocks to be directly routed to an electric field block.

[0105] In one embodiment, the modular energy storage system container (100) may include configurations for connecting a plurality of modular blocks.

[0106] For example, a modular energy storage system container (100) may further include a semi-automatic twist lock for joining vertical corners between blocks and a C-shaped bracket for joining upper corners of horizontal joint surfaces between blocks, in cases where a common lower support structure (140) is not included to connect multiple modular blocks. For example, the semi-automatic twist lock and the C-shaped bracket may replace the lower support structure (140) to provide a direct joining structure for binding the shapes between blocks and supporting loads.

[0107] In one embodiment, a semi-automatic twist lock may refer to a fixing device that physically restrains the corner castings of vertically adjacent blocks by joining them together when stacking modular blocks according to the present disclosure vertically or fixing them to a transport means.

[0108] In one embodiment, the semi-automatic twist lock is inserted into an ISO standard corner casting hole and operates, and unlike a general manual method, it may have the following technical features. For example, during the process of placing an upper modular block onto a lower block or a common lower support structure (140), the internal spring or cam structure is actuated by the self-weight of the block, so that it automatically switches to a locking state without any separate manual operation. For example, when implementing an architecture by stacking 10-foot bi-con blocks in two or more layers, the semi-automatic twist locks located at the four corners of each block not only firmly support the vertical load between the blocks but can also fundamentally prevent horizontal displacement caused by external vibrations such as pitching or rolling. For example, due to the characteristics of the modular block, which is a heavy object containing a high-density battery, the semi-automatic twist lock can be fastened quickly using only crane operation without the need for a worker to climb onto the top of the container at a high position and manually operate the handle. This significantly reduces on-site assembly time and can function as a safety aid to prevent the risk of human casualties associated with working at heights. For example, the semi-automatic twist lock is designed so that when the stacking is released for system maintenance or block replacement, the lock can be easily unlocked from the ground using a provided wire or a dedicated tool, thereby supporting the variable operation of the modular energy storage system container (100). Consequently, the semi-automatic twist lock can be a key fastening means for integrating standardized bi-cone modules into a single rigid structure.

[0109] In one embodiment, the C-shaped bracket may refer to a support member having a 'C'-shaped cross section provided to reinforce the structural bonding strength of a modular block according to the present disclosure or to firmly secure internal key components (e.g., cooling water pipes, cables, panels, etc.) to a frame.

[0110] In one embodiment, the C-shaped bracket is formed from high-strength steel or a corrosion-resistant alloy and may be characterized by performing the following technical functions in implementing the architecture of the present disclosure. For example, when joining a plurality of modular blocks horizontally or vertically, the C-shaped bracket can minimize assembly errors and provide structural integrity by being fastened in a manner that wraps around the frame corners or joints of adjacent blocks. For example, the C-shaped bracket can serve to restrain each block to maintain a designated position even when external impact or vibration occurs. For example, the C-shaped bracket can function as an edge bracket to fix and reinforce the edges of the explosion-proof panel provided on the rear of the battery block, so that the panel can withstand high pressure during an explosion while maintaining a thin thickness of 15 mm or less. For example, the C-shaped bracket can provide a shape optimized for preventing interference between blocks by firmly gripping the ends of the panels while minimizing external protrusion. For example, C-shaped brackets can serve as guides to ensure that plumbing and DC cables placed inside the block are secured without shaking. For instance, C-shaped brackets can be applied to the connection point between the enclosure panel and the main frame to enhance the adhesion of the sealing material, thereby contributing to achieving waterproof and dustproof performance of IP65 or higher required by electrical blocks. For instance, C-shaped brackets can serve as a key fastening means that physically supports each modularized block to ensure independent durability, while simultaneously enabling the entire system to possess rigidity as a single integrated container.

[0111] In one embodiment, the explosion-proof panel may refer to a safety device that prevents explosions and chain fires in the system by rupturing or opening at a set pressure when the pressure inside the battery block rises rapidly due to thermal runaway of the battery module, etc., thereby safely discharging internal high-pressure gas and flames to the outside. For example, the explosion-proof panel is individually provided on one side (e.g., top, rear, front) of each battery block (110), so that even if an accident occurs in a specific battery block (110), it can block the transfer of flames to adjacent blocks or electrical blocks and independently relieve only the pressure of that block. For example, the explosion-proof panel is designed so that the panel unfolds upward upon explosion, thereby inducing flames and debris to be discharged into the air rather than to the ground or adjacent equipment. This can serve to alleviate safety clearance requirements around the container installation site and ensure the safety of inspection personnel.

[0112] In one embodiment, the battery block (110) may include a rear wall-type explosion-proof panel that is individually installed on the rear of the battery block (110). For example, the rear wall-type explosion-proof panel may be positioned on the rear of each battery block instead of the roof surface to allow for the application of a stacked structure of two or more layers for a plurality of blocks, and may be configured to remain folded without protruding parts under normal conditions, and to open up to discharge flames upward upon explosion.

[0113] In one embodiment, the rear wall-type explosion-proof panel is configured with a thickness to prevent structural interference during stacked assembly of a plurality of blocks, and is configured so that the angle at which the explosion-proof panel opens when opened by an explosion is limited to a preset upward angle (e.g., 45 degrees), thereby reducing the required radius of the safety zone in the surrounding space.

[0114] For example, if the opening angle of the explosion-proof panel is limited to 45 degrees or less, the trajectory of flames and high-pressure gases ejected during an explosion can be guided steeply upward rather than horizontally. This can drastically reduce the required radius of the legal and technical safety zone that must be secured behind the system, which can lead to site efficiency that allows more containers to be placed more densely within a limited site.

[0115] For example, when the panel is opened within the gap between the vertically stacked blocks, an angle of 45 degrees or less can prevent the panel body from physically colliding with the outer wall of the upper layer block or the protruding quick connector (103) portion.

[0116] For example, by limiting the opening angle, instantaneous impact torque applied to the hinge or tether wire can be dispersed. This prevents accidents where the panel completely detaches from the main body and scatters, and enables the panel to maintain a constant angle even after pressure is released, thereby serving as a guide to block secondary external ingress.

[0117] For example, if the opening angle of the explosion-proof panel exceeds 45 degrees, as the opening angle exceeds 45 degrees and approaches the horizontal direction (90 degrees), flames and debris ejected from the inside can travel further parallel to the ground. This can cause direct impact to workers passing around the system or other adjacent equipment, and consequently, may result in a reduction in space efficiency by forcing extensive safety clearances.

[0118] For example, in a vertically stacked battery block structure, if a panel is opened excessively beyond 45 degrees, the upper part of the panel may collide forcefully with the lower frame or piping structure of the block located directly above it. Such an impact may cause structural deformation of the upper block that was not involved in the accident, or conversely, cause functional defects by causing the panel itself to be ejected, thereby making the discharge path incomplete.

[0119] For example, if the panel is excessively opened, the opening area after discharge is completely exposed to the outside, increasing the likelihood that firefighting water or external foreign matter may flow directly into the internal battery rack during the fire suppression process. This may pose a risk of inducing a secondary short circuit in surrounding battery cells in addition to the block where the accident occurred.

[0120] For example, the explosion-proof panel may be formed with a thickness of 15 mm or less (e.g., the thickness of the explosion-proof panel may be the thickness of the explosion-proof panel protruding outward when attached to a container) in order to fundamentally block physical interference between blocks when assembling multiple modular blocks by arranging them adjacently or stacking them vertically. For example, by configuring the thickness of the explosion-proof panel to be 15 mm or less, a structure of complete contact between the outer walls of the blocks can be formed without the need to secure a separate gap when combining multiple battery blocks (110) in a horizontal or vertical direction. This can result in minimizing the installation area of ​​the entire system and increasing structural integrity. For example, by configuring the thickness of the explosion-proof panel to be 15 mm or less, the explosion-proof panel is designed so that it does not protrude outside the frame within the ISO standard container specifications, thereby preventing damage to the panel from external impacts that may occur during crane operations or loading / unloading processes during sea or land transport, and maximizing transport stability. For example, by configuring the thickness of the explosion-proof panel to be 15 mm or less, and adopting a high-strength thin-film structure capable of withstanding high-pressure explosive forces even within a thin thickness, it is possible to reliably maintain an IP65 or higher sealing rating that effectively blocks the intrusion of external moisture or dust during normal operation.

[0121] In one embodiment, the battery block (110) may include a detachable assembly panel applied to the left side to allow the initial loading of an internal battery and a double door that opens and closes applied to the front to allow maintenance. For example, external ports of the battery block (110), which are coupled with block connecting members for electrical and fluid connections between a plurality of blocks, may be positioned at the bottom of the front of the battery block (110) so as not to interfere with the opening space of the double door for maintenance.

[0122] In one embodiment, when a common lower support structure (140) is provided, the common lower support structure (140) may include a first common lower support structure on which modular blocks are seated. For example, the first common lower support structure may include a first internal busbar for transmitting power to blocks inside a container and a skid connection that electrically directly connects the second internal busbar of a second common lower support structure of another modular energy storage system container positioned adjacent to the container.

[0123] In one embodiment, power output from a power converter included in the electrical block (130) can be integrated through a first internal busbar, a skid connection, and a second internal busbar and output to the outside of a container and a container other than the container.

[0124] In one embodiment, the modular energy storage system container (100) may include a single external connection port provided in a first common lower support structure of the container, and mutually integrated power through the skid connection may be output to an external site power grid only through the single external port, so that individual site cabling work of other containers may be omitted under the combined structure of the containers.

[0125] In one embodiment, the external site power grid includes all forms of external systems that receive power output from the container (100) of the present invention or supply power to charge the battery inside the container (100), and may include the following examples depending on the installation environment and purpose. For example, the external site power grid may include a public power grid, a renewable energy generation complex, an industrial and commercial microgrid, an electric vehicle fast charging station, and a multi-container parallel interconnection network.

[0126] In one embodiment, the skid connection may connect the first common lower support structure and the second common lower support structure with a cable. For example, the skid connection may include a power cable made of a conductor used for power transmission over relatively long distances and wiring of complex paths, which is a structure in which a central circular conductor (stranded wire) is wrapped with an insulator and a sheath, and a flexible busbar having a structure in which thin copper or aluminum foil is laminated or fine wires are braided into a mesh.

[0127] In one embodiment, the cable is a flexible cable that is a flexible line for transmitting power, and the skid connection includes quick connectors provided at both ends of the flexible cable, so as to be able to physically and electrically connect the first and second common lower support structures while absorbing vibration and assembly errors.

[0128] In one embodiment, the skid connection can connect the first common lower support structure and the second common lower support structure with a flexible busbar.

[0129] In one embodiment, the skid connection may further include a cable gland or busbar bushing coupled to a side hole of a first common lower support structure and a second common lower support structure through which the skid connection passes.

[0130] In one embodiment, the cable gland may be a mechanism installed at the entry point of a cable penetrating the outer wall of a block or common lower support structure (140) to firmly secure the cable and maintain a seal at the penetration point.

[0131] In one embodiment, the busbar bushing may refer to an insulating and sealing member that is coupled to a hole to maintain airtightness when a skid connection connecting the first common lower support structure (140) and the second common lower support structure of the modular energy storage system container (100) penetrates a side hole of the structure.

[0132] In one embodiment, the busbar bushing performs a purpose similar to that of a cable gland (400), but has a through structure corresponding to the shape of a busbar, which is a rigid conductor in the shape of a plate or rod, and can perform the following technical functions in the present invention.

[0133] In one embodiment, the cable gland or busbar bushing can perform waterproof and dustproof functions by maintaining a seal on the skid connection.

[0134] In one embodiment, the first internal busbar is formed to extend along the longitudinal direction in the internal space of the first common lower support structure in place of a cable, thereby improving the space efficiency and electrical efficiency of the container.

[0135] In one embodiment, the skid connection provides a hierarchical power routing structure between a container and another container, so that the first common lower support structure is directly electrically connected to the power converter of the electrical block mounted on top, and the second common lower support structure can be electrically connected to the power converter (PCS) of the electrical block via the first internal busbar through the skid connection.

[0136] In one embodiment, the container and other modular energy storage system containers are arranged adjacently to each other in the transverse direction, and the first common lower support structure and the second common lower support structure form a parallel connection structure in the transverse direction through a skid connection to allow expansion of the modular containers.

[0137] In one embodiment, modular blocks are placed on top of a first common lower support structure in a stacked structure, and a plurality of battery blocks are vertically stacked in a plurality of layers on the first common lower support structure, and the battery power inside the stacked battery blocks is collected by a DC power control device provided at the bottom of the battery block of the bottom layer of the stacked structure and then routed horizontally toward a power conversion device of an electrical block.

[0138] In one embodiment, the first internal busbar of the modular energy storage system container (100) can be embedded in the interior of the first common lower support structure during the factory manufacturing process prior to installation at an external site.

[0139] In one embodiment, the modular energy storage system container (100) may include a main power cable extending from an electrical block (130) located at the top or outside of a first common lower support structure.

[0140] In one embodiment, the main power cable may be introduced into the interior of the first common lower support structure so that the power output from the electric field block (130) is directly electrically interfaced with the first internal busbar.

[0141] In one embodiment, the modular energy storage system container (100) may include a cooling water plumbing path provided inside a first common lower support structure. For example, the first common lower support structure may be configured to share a cooling water plumbing path inside in parallel with a power connection path through a first internal busbar, thereby supplying cooling water supplied from a chiller block to each block inside the container in parallel.

[0142] In one embodiment, at least one battery block (110) comprises a plurality of battery blocks (110) that are vertically stacked, wherein the plurality of battery blocks (110) may be integrated and connected into a single space to jointly discharge pressure during an explosion. For example, a ceiling-mounted explosion-proof panel may be installed on the top ceiling of the integrated battery blocks to discharge explosion pressure and flames.

[0143] In one embodiment, at least one battery block (110) may be provided in multiple units and assembled into a stacked structure that is stacked vertically. For example, each of the multiple battery blocks (110) may have an independent explosion-proof structure for each block, including a rear wall-type explosion-proof panel individually disposed on the rear wall of the block so that the stacked structure design can be made without interference.

[0144] In one embodiment, when the modular energy storage system container (100) is equipped with the modular energy storage system container (100), power output from the battery block (110) can be transmitted from the DC power control device to the first internal busbar embedded in the first common lower support structure via the power converter and fuse of the electrical block sequentially, and then output to the external site power grid via the skid connection part and the second internal busbar sequentially.

[0145] In one embodiment, the blocks constituting the modular energy storage system container (100) are based on 10-foot bi-con modules and can be combined in horizontal and vertical directions to support simultaneous expansion. For example, the blocks constituting the modular energy storage system container (100) may have dimensions of 2991 x 2438 x 2896 [mm].

[0146] In one embodiment, the common lower support structure may have dimensions of 9125 x 2438 x 945 [mm]. For example, the common lower support structure may be configured by vertically stacking three of them.

[0147] In one embodiment, the modular energy storage system container (100) can individually optimize thermal, electrical, and structural performance according to climate conditions (e.g., desert, high temperature, cold region) and load patterns (e.g., 2, 4, 8 hours) through a block separation design.

[0148] In one embodiment, the modular energy storage system container (100) can replace the chiller or AC block with a next-generation high-efficiency model, and can provide the effect that the installation method can be standardized by enabling replacement on a block-by-block basis.

[0149] In one embodiment, the modular energy storage system container (100) can provide standardized installation interfaces capable of establishing strategies. For example, the modular energy storage system container (100) can provide the effect of reducing mass production costs by manufacturing standardized piping, wiring, and structural connections between multiple blocks based on predefined specifications, enabling product configuration by combining blocks to meet customer needs, and supporting rapid delivery.

[0150] In one embodiment, the modular energy storage system container (100) may have an optimized layout structure depending on the site conditions of the installation site. For example, the battery blocks (110) are basically arranged in a two-tier stacked structure, but can form a total three-tiered stacked structure if a first common lower support structure (140) is included. For example, the blocks constituting each container are arranged back-to-back with a spacing of about 800 mm, and can form a mutually parallel connection structure through skid connections.

[0151] In one embodiment, each block can be combined into standardized units to maximize transport efficiency. For example, the battery block (110), electrical block (130), and chiller block (120) can be transported in 20-foot High Cubic (HC) units when two units are connected, and the common lower support structure (140) can be transported in 30-foot High Cubic (HC) units when three units are connected, thereby avoiding logistics weight limits.

[0152] In one embodiment, for example, a Sunwoda 314Ah module is applied as a 3D model inside the battery block (110), so that installation efficiency can be improved through a compact mounting space compared to the same capacity.

[0153] In one embodiment, the present invention can secure an energy density of approximately 450 kWh / m² per area when one set of containers is installed.

[0154] In one embodiment, for smooth installation of the long-axis battery, the battery block (110) may adopt a structure in which the internal module is rotated 90 degrees. In this case, the left side of the battery block (110) may be provided with an assembly panel for initial loading, and the front may be provided with double doors for maintenance of the battery rack. For example, to prevent interference with the open space of the double doors, the cable and piping connection points may be positioned at the bottom of the front of the battery block (110).

[0155] In one embodiment, the present disclosure may provide different design specifications depending on the installation infrastructure and explosion-proof requirements.

[0156] For example, if the design specifications include a common lower support structure (140), a DC power control device (DCPM, 141) and a power converter (PCS, 142) may be placed inside the common lower support structure (140) to form an integrated control structure at the bottom of the container. And in the case of an explosion-proof structure, such a container may have a structure in which stacked blocks share a ceiling-type explosion-proof panel at the top.

[0157] For example, if the design specifications do not include a common lower support structure (140), the common lower support structure (140) may be excluded and the system may be composed mainly of 10-foot blocks for simplification. In this case, a DC power control device (141) may be embedded in the inner bottom of the battery block (110), and a power converter (142) may be installed individually inside the electrical block (130). To ensure explosion-proof performance, an independent rear wall-type explosion-proof panel (107) may be applied to the rear wall of each battery block (110) to eliminate interference during stacking. For example, the chiller block (120) performs independent cooling water routing to the battery blocks (110) of each layer, and as the circulation and pressure stability of the piping in the first layer are ensured, uniform cooling can be supported without the installation of additional motors.

[0158] In one embodiment, the connection between modular blocks can be made through cable glands (400) and conduit structures placed on the lower left and right sides of the box. For example, power and piping interfaces can use quick connectors (103) to maintain a waterproof and dustproof rating of IP65 or higher at all times. For example, high voltage (HV) connection parts can use a combination of quick connectors and flexible cables (401) to ensure physical and electrical connection reliability even under conditions of vibration or assembly error.

[0159] In one embodiment, the container (100A) or container system (100B) of the present disclosure may use dedicated block connecting members for vertical and horizontal connection. For example, a semi-automatic twist lock utilizing the self-weight of the block may be used for vertical corner connection, and a C-shaped bracket may be applied for upper corner connection of the horizontal connection surface to provide structural integrity.

[0160] In one embodiment, the disassembly process for replacing a specific block of the present disclosure may proceed in the order of disconnecting the power, disassembling the cable and piping through the quick connector, releasing the C-shaped bracket (104) and the semi-automatic twist lock (105), and lifting the block using a crane.

[0161] According to the present disclosure, rapid replacement of parts is possible by removing only the block to be maintained itself or the block located on top of the block to be maintained, and the maintenance efficiency of the container can be maximized as there is no need to dismantle the entire system.

[0162] The battery block (110) may include a plurality of battery racks and a DC power control unit (DCPM or BCU) inside. The DC power control unit (DCPM) may refer to a hardware control unit that monitors the charging and discharging status of the battery and switches the input and output of the DC power.

[0163] In an embodiment where a common substructure (140; SKID) is excluded, the DCPM may be integrally fixedly mounted in the center of the inner bottom portion of the battery block (110). As an additional structural feature, the outer housing of the battery block (110) may be formed of steel or aluminum alloy material and may have a dual structure for maintenance and loading. Specifically, a bolt-fastened detachable assembly panel may be applied to the left side where the battery is first loaded, and a hinged double door may be mounted on the front side where routine maintenance is performed. Additionally, external ports for electrical / fluid connection with adjacent blocks may be concentrated at the lowest part of the front of the battery block so as not to interfere with the opening trajectory of the double door. As a deflagration panel structure for explosion safety, a deflagration panel for discharging explosion pressure may be installed on the roof or rear wall of the battery block (110). To optimize the stacked structure, the explosion-proof panel is formed as a rear wall type and normally maintains a folded state with a slim thickness of, for example, 15 mm or less, but can be mechanically restricted to unfold only at a specific angle (e.g., 45 degrees upward) around an open hinge when internal explosion pressure occurs. Through this block-embedded structure and slim rear explosion-proof panel structure of the DCPM, battery control is possible without a separate lower skid space, allowing energy density to be increased to a maximum value per unit area (e.g., 450 kWh / m²), and by restricting the direction of flame discharge upward in the event of an explosion, the required radius of the safety area for surrounding equipment can be physically reduced by more than 50%.

[0164] In an embodiment where the common lower support structure (140) is excluded, the container (100A) may include a direct connection interface configuration for transferring fluid and power between heterogeneous blocks. The direct connection interface may include a cooling water plumbing routing structure between the chiller block (120) and the battery block (110), and a power routing structure between the electrical block (130) and the battery block (110). As a sub-concept and connection method, the blocks may be interconnected via a quick connector, a cable gland, a flexible cable, and a bushing structure. For example, a quick connector may refer to a connection component in which male and female terminals are joined by a push-pull or twist-lock method without a separate tool. As a shape and material feature, a gland structure including a lock-nut made of high-quality polyamide (PA6) and a silicone gasket may be joined to the portion penetrating the hole between the blocks. As a specific embodiment of pipe routing, when the battery block (110) is stacked in two layers, the first chiller pipe inside the chiller block (120) can be vertically raised and directly fed into the second-layer battery block, and the second chiller pipe can be horizontally moved and fed in parallel into the first-layer battery block. Through this flexible material-based quick connector and gland direct connection structure, mechanical assembly tolerances occurring during module stacking and micro-vibrations occurring during system operation can be absorbed, and high-grade waterproof or dustproof performance of IP65 or higher can be achieved at the joints, thereby minimizing the risk of system shutdown due to leakage and short circuits. In addition, through independent pipe routing for each layer, uniform cooling water circulation is possible even in a two-layer structure without the installation of an additional hydraulic pump, resulting in a technical effect of reducing cooling drive power.

[0165] In one embodiment, the container (100A) or container system (100B) of the present disclosure may include a base network structure (e.g., 140) that supports the blocks integrally from below and simultaneously electrically connects other container units to each other. The containers (100A and 100B) may include a first common lower support structure (SKID, 140) on which a battery block (110), a chiller block (120), and an electrical block (130) are seated on top. As illustrated in 100B of FIG. 1, the first common lower support structure (140) may be continuously extended and connected in parallel through a skid connection with a second common lower support structure of another container unit arranged adjacently to the side. In the internal empty space of the first common lower support structure (140), a first internal busbar made of, for example, highly conductive copper (Cu) or aluminum (Al) material that replaces the cable can be pre-installed along the length during the factory assembly stage.

[0166] As various embodiments of the connection relationship, the skid connection may include at least one of the following methods: connecting the first common lower support structure (140) and the second lower support structure with a high-capacity flexible cable, connecting with a flexible busbar, or connecting with a rigid joint fitting. As a power transfer sequence, direct current power released from the battery may be sequentially transmitted and routed from the DCPM of the battery block (110) through the PCS and fuse of the electrical block to the first internal busbar and skid connection within the common lower support structure (140), and then to the second internal busbar. By embedding the busbar inside the common lower support structure (140) and establishing a parallel connection topology between the skids in this manner, the entire power can be transmitted and received only through a single external connection port (terminal) located at one end of the expandable system (100B) when connected to an external substation (MV station). This provides a powerful technical effect that drastically reduces on-site cabling man-hours and construction costs by overcoming the conventional physically labor-intensive limitations of having to manually run hundreds of high-power cables into each container during large-scale site construction, such as power plants.

[0167] In an embodiment where the common lower support structure (140) is excluded, a direct connection based on quick connectors and glands can be implemented. Accordingly, electrical lines and / or fluid lines are directly connected at the joint surface between blocks without a medium called a skid (140), and flexible cables and quick connectors and / or glands, such as IP65 rated ones, can be used to absorb errors and vibrations that occur.

[0168] In an embodiment where a common lower support structure (140) is excluded, a pump-free two-layer independent piping routing structure may be used. Since there is no skid (140) to concentrate chiller piping at the bottom, the left chiller is routed individually to the upper battery block and the right chiller is routed to the lower battery block, so that water pressure problems can be solved without additional motors or pumps.

[0169] In the case of embodiments where a common sub-support structure (SKID) is excluded, the present disclosure may include physical direct coupling devices that self-support the load between blocks and fix their shape. The physical direct coupling devices may include a twistlock for fastening the corners of blocks stacked vertically and a bracket member for fastening the corners of blocks that meet horizontally. The twistlock may utilize a semi-automatic twistlock mechanism in which a pin of the coupling part rotates to automatically induce fastening when blocks are lowered and fed in via a crane. The bracket member may include a structure in which both ends of a steel C-shaped bracket are inserted into the upper corner (casting corner) holes of two horizontally adjacent blocks and secured with a locking pin. By applying this semi-automatic twistlock and C-bracket-based modular direct connection architecture, the heavy and bulky steel skid frame can be completely eliminated from the system, thereby achieving a skid-less structure. Consequently, mechanical structural effects can be realized, such as reducing the overall container weight, avoiding constraints on container cargo transport, simplifying on-site crane lifting operations, and maximizing intuitive modular stacking scalability through modular block assembly.

[0170] FIG. 2 illustrates, exemplarily, the connection between blocks constituting a modular energy storage system container according to one embodiment of the present disclosure.

[0171] For example, FIG. 2 illustrates an exploded view of a plurality of blocks and a common lower support structure of a modular energy storage system container according to one embodiment of the present disclosure.

[0172] The container of the present disclosure may include a combination of modules configured to have individual housings by dividing functions into multiple parts according to purpose. The multiple modular blocks may include at least one battery block (110) containing a battery rack and a DC power control device inside, a chiller block (120) that generates and circulates cooling water, and an electrical block (130) including a power converter.

[0173] The battery block (110) may be a cubic structure, the smallest unit for physically storing power. The battery rack included in the battery block (110) may be hardware in the form of a physical shelf where multiple battery cells or battery modules are loaded in series and parallel. The DC power control unit may be a hardware control panel (e.g., BCU, etc.) that switches the DC power input and output of the battery and protects against overcurrent. The chiller block (120) may be a structure dedicated to thermal management for controlling the heat generated by the battery, including a compressor, a condenser, etc. The electrical block (130) may be a structure dedicated to power management that converts DC and AC and performs power system control. The power converter may be a power electronics-based hardware inverter that converts DC power into AC power for transmission to the power grid.

[0174] The present disclosure may include mechanical direct coupling devices for physically binding the shapes between blocks and self-supporting shaking or external loads. The direct coupling devices may include a semi-automatic twist lock for joining vertically abutting corners and a C-shaped bracket for joining horizontally abutting corners. The semi-automatic twist lock may be spring-based locking hardware in which an internal pin mechanically rotates to automatically engage the casting corners of the upper and lower blocks when the upper block is lowered via crane lifting. The C-shaped bracket may be a physical clamp structure made of high-strength steel material in which both ends are inserted into holes on the upper joint surfaces of two horizontally adjacent blocks to fix the lateral separation.

[0175] As illustrated in the enlarged view 101B of FIG. 2(a), the fastening components can be applied to corner connections between battery blocks (110) or between a battery block (110) and a chiller block (120). In various modified embodiments, the fastening devices may be replaced by or used in conjunction with any one of a manually operated twist lock, a hexagonal bolt-nut assembly, a magnetic locking member, or a side-sliding fastening member. By applying a physical direct connection structure based on such a semi-automatic twist lock and C-shaped bracket, the block can withstand external vibration loads, such as typhoons or earthquakes, solely through the rigidity of the block itself, even in a skid-less structure where the lower skid, which served as a heavy steel frame, is excluded. Furthermore, this allows for the vertical separation of only the block in the corresponding row by a crane without dismantling the entire system in the event of a future failure of a lower block (e.g., a first-floor battery block), while leaving the adjacent blocks intact, thereby improving the accessibility of equipment maintenance and reducing the time required for work, thus providing an improvement in mechanical structural performance.

[0176] The present disclosure may include a direct connection interface configuration that does not pass through an intermediate medium (e.g., a skid) to transfer cooling fluid and high power between spatially separated heterogeneous blocks. The direct connection interface may be a plurality of block connecting members (101) provided between the connecting surfaces of a battery block (110), an electrical block (130), and a chiller block (120). The block connecting member (101) may include an external port (102) and a quick connector (103) structure that mediates the same. The connecting surface may be a metal outer wall housing surface that physically faces the different modular blocks when assembled. The external port (102) may allow a cable or piping to protrude or be drawn in to the outside of the block housing to allow physical input or output of power or fluid. The block connecting member (101) may refer to an assembly that electrically and fluidly penetrates and conducts power to the separated blocks. The quick connector (103) may be a connection component having high current or high pressure resistance performance, in which male and female terminals are connected by a push-pull method or a rotary snap connection method without the operation of a separate hand tool wrench. The cable gland may be a bushing component that hermetically seals the gap of the hole through which the cable passes through the port, and the gasket and lock-nut may be a fixing and waterproof ring made of silicone or polyamide (PA6) material that strengthens the seal of the gland.

[0177] As shown in the enlarged view 101A of FIG. 2(a), the external port (102) at the bottom of the battery block (110) and the port of the adjacent block can be directly connected horizontally via a flexible cable having quick connectors (103) at both ends. As an example of fluid routing, when a left chiller and a right chiller are provided inside the chiller block (120), the cooling pipe of the left chiller can be directly vertically routed to the upper (e.g., 2nd floor) battery block (110), and the cooling pipe of the right chiller can be directly horizontally routed to the lower (e.g., 1st floor) battery block (110) to form a fluid connection. As an example of power routing, the power generated from the battery can have a sequence in which it passes through the block connecting member (101), sequentially passes through a DC power control device (DCPM), a power conversion device (PCS), and a fuse, and then is output to an external site. By applying direct routing using such flexible material-based cables and quick connectors (103), mechanical assembly errors of several millimeters that occur during stacking between container modules and micro-vibrations during container operation can be absorbed. Furthermore, through the cable gland structure of the connection joint surface, high-reliability dustproof and waterproof performance, such as IP65 rating or higher, can be implemented in hardware. This reduces the critical shutdown rate of the entire system due to dust ingress, short circuits, and water leakage, and allows for stable parallel distribution of cooling water to the two-layer battery without an additional hydraulic pump. Accordingly, an excellent performance improvement effect can be provided, which reduces operating power within the container.

[0178] Referring to FIG. 2(a), the modular block of the present disclosure may include a block connecting member (101A) at at least one of eight corners of the block, for example, which can form a physical or electrical connection with another modular block adjacent to the modular block. For example, the block connecting member (101A) can form a left-right and / or up-down connection of the modular blocks.

[0179] In one embodiment, the block connecting member (101A) may include an external port (102) corresponding to a female member having a receiving space inside the block connecting member (101A), and a quick connector (103) corresponding to a male member inserted into the receiving space. For example, the external port (102) may include a casting hole that is an ISO standard container specification, so that the quick connector (103) can form an immediate physical connection and electrical conduction state with only a simple insertion or rotation operation without a separate tool. For example, the external port (102) may have at least one side of the front, left or right side and the front open to enable insertion of the quick connector (103). For example, the quick connector (103) may be configured for left-right connection and / or up-down connection. For example, if the quick connector (103) is for left-right connection, the quick connector (103) may have a left-right protruding housing structure suitable for connecting by approaching from the side when a plurality of blocks are arranged horizontally in parallel. For example, if the quick connector (103) is for left-right connection, the quick connector (103) may include a cylindrical or rectangular body that protrudes a certain length outward from the side panel of the block, and may have a locking lever or a rotating sleeve with a threaded structure formed on the outer surface so that it is easy for a worker to grip and operate by hand. For example, if the quick connector (103) is for up-down connection, the quick connector (103) may have an embedded and guide cone structure that induces a natural connection without being damaged by the load of the upper block when the modular blocks are vertically stacked. For example, it may have a flat base structure that is seated parallel to the upper surface of the lower block or the lower surface of the upper block, and may be positioned lower than the panel surface or embedded inside the protective frame so that the connector does not become a direct load support point during stacking.

[0180] In one embodiment, referring to FIG. 2(b), various combinations of modular blocks connected using a block connecting member (101) are disclosed. For example, when two modular blocks are connected, the various combinations of modular blocks may include a combination of a battery block (110) and a battery block (110), a combination of a battery block (110) and a chiller block (120), and a combination of a battery block (110) and an electrical block (130). For example, when two or more modular blocks are connected, the various combinations of modular blocks may include a connection of three battery blocks (110), a combination of one battery block (110), one chiller block (120), and one electrical block (130), a combination of two battery blocks (110) and one chiller block (120), a combination of two battery blocks (110) and one electrical block (130), etc. Combinations of various modular blocks are not limited to the listed examples.

[0181] As illustrated in FIG. 2(b), the battery blocks (110) can be stacked vertically in two or more layers, and the electrical blocks (130) and chiller blocks (120) can be arranged in a longitudinal or transverse direction on the side of the battery blocks (110). In another variant embodiment, each block may be manufactured in a 10-foot bi-con standard, and configured so that two blocks are combined and transported in a 20-foot high-cubic container, or three blocks are combined and transported in a 30-foot high-cubic container. By applying this functional block division and 10-foot unit stacking structure to the system, it is possible to fundamentally avoid cargo weight restrictions that occur during container ship transport, even when the interior is fully loaded with heavy batteries. Furthermore, this allows the capacity of the cooling and electrical blocks to be freely combined and upgraded to match the climate of the installation site (e.g., desert, cold region) or power load pattern, thereby generating a technical effect that maximizes the design flexibility and lifecycle efficiency of the entire hardware system.

[0182] In one embodiment, referring to (c) of FIG. 2, connections of a common lower support structure (140) may be included.

[0183] In one embodiment, a common lower support structure (140) may include a block connecting member (101) that enables left-right and / or up-down connection of a plurality of common lower support structures (140). For example, a plurality of common lower support structures (140) may be connected left-right to form a single layer. Additionally, a plurality of common lower support structures (140) forming a single layer may be connected up-down using a block connecting member (101B) and stacked in multiple numbers to form a combination of common lower support structures (140).

[0184] Embodiments of the present disclosure may include a common lower support structure (140) located at the bottom to support the entire integrated load of the upper blocks and simultaneously function as a base power network structure for electrically connecting other external container units in parallel. The structure (140) may be arranged in multiple units as shown in FIG. 2 (c) and (d), and a battery block (110), a chiller block (120), and an electrical block (130) may be seated on top. The common lower support structure (140) may be a steel skid frame at the base that distributes and supports the load of the entire container. The internal busbar may be a thick rod-shaped conductor made of highly conductive aluminum (Al) or copper (Cu) material that is embedded extending along the length of the internal empty space of the common lower support structure (140) in place of an insulated cable. The skid connection may be a power connection mechanism that electrically integrates the end of the internal busbar with the end of the busbar of an adjacent structure. The skid connection can implement electrical connections between containers.

[0185] As shown in FIG. 2(c), the first common lower support structure (140) can be extended in parallel in the lateral direction through a skid connection with a second common lower support structure (140) positioned on the side. Power output from a power converter (pcs) inside the electrical block (130) is introduced from the top to the bottom through a main power cable and interfaces with the busbar of the first common lower support structure (140), and can be sequentially routed to the second busbar of another container through the skid connection. As various modified embodiments, the skid connection may have a gland connection structure based on a high-capacity flexible cable or include a busbar bushing connection method that assembles flexible busbar terminals. In this way, by pre-installing a large-capacity busbar inside a common lower support structure (140) at the factory stage and applying a transverse parallel expansion structure based on this, the container(s) at an external power plant site where multiple modular containers are arranged on a large scale can transmit and receive to and from the entire power grid through only one single external connection port (terminal) at one end. This overcomes the physical limitations of the conventional labor-intensive process, in which dozens to hundreds of site power cables had to be individually pulled in and connected to each container during power plant construction, thereby producing a power topology optimization effect that innovatively reduces the cost of expensive high-power cable materials, electrical construction labor costs, and work time required for on-site construction by more than 80%.

[0186] In one embodiment, referring to FIG. 2(d), an example is disclosed in which a plurality of common lower support structures (140) are stacked by connecting them left and right and up and down using a block connecting member (101). For example, three common lower support structures (140) can be connected left and right to form a single layer. Additionally, a combination of three common lower support structures (140) in a single layer, each consisting of three common lower support structures (140), can be shown, with three of these structures connected up and down to form a single common lower support structure (140) consisting of a total of nine common lower support structures (140).

[0187] The container of the present disclosure may include a safety venting structure for safely venting outwardly the explosive pressure generated in the event of abnormal thermal runaway of the battery cell and internal fire. The safety venting structure may include a top explosion-proof panel structure placed on the top roof surface of the container, or a side (rear) explosion-proof panel (107) structure installed individually on the rear wall of each block instead of the roof surface. The explosion-proof panel may be a disaster safety defense component that forcibly vents flames and high-pressure gas to the outside by destroying the physical panel structure or popping up around a hinge when the internal pressure of the module reaches a preset critical pressure (e.g., 25 to 100 mbar). In the case where the module of the container is composed of a single layer or has no additional stacking, the top explosion-proof panel (106) is applied so that two battery blocks (110) can be bundled into a single space to jointly vent pressure to the ceiling. As an alternative embodiment, in a structure requiring a vertical stacking design of two or more layers for multiple blocks, a rear explosion-proof panel that is individually divided into a wall-like shape instead of a roof may be applied. In this case, the rear explosion-proof panel (107) may be mechanically configured to maintain a folded, thin state of, for example, 15 mm or less, so that there are no external protrusions in normal conditions. This structure of an individually divided and slim rear explosion-proof panel (107) can maximize the vertical space density of the container by eliminating the mechanical panel interference problem that inevitably occurs between upper and lower blocks when modules are stacked vertically. In particular, by designing the hinge to be mechanically limited so that the opening angle when the panel is opened by an explosion is only at a specific angle, such as, for example, 45 degrees upward, the explosion flame can be prevented from spreading widely in the horizontal direction.This can achieve excellent fire safety performance enhancement effects, such as preventing fire spread to opposite equipment even in environments with a narrow rear maintenance gap of, for example, 800mm, and reducing the physical required radius of the safety zone for container installation by, for example, more than 50%.

[0188] FIG. 3 is a diagram illustrating various block connection structures constituting a modular energy storage system container according to one embodiment of the present disclosure.

[0189] In one embodiment, various combinations of the number of modular energy storage system containers (100) are disclosed. For example, if the modular energy storage system container (100) includes six modular blocks and three modular blocks in the modular energy storage system container (100) form a single layer, resulting in a total of two layers, at least one modular block may be replaced. For example, when at least one modular block is replaced, the at least one modular block may be removed by moving upward or left / right, and the modular block to be replaced in the removed place may be replaced by moving downward or left / right.

[0190] In one embodiment, referring to FIG. 3(a), the modular energy storage system container (100) may be composed of four battery blocks (110), one chiller block (120), and one electrical block (130). For example, if one battery block (110) located in the center of the second floor is replaced, the battery block (110) being replaced may be removed from the modular energy storage system container (100) by moving in direction A.

[0191] In one embodiment, referring to FIG. 3(b), when one battery block (110) in the center of the second layer is replaced, the block connecting member (104) for horizontal connection of the replacement battery block (110) can be moved in direction B to be connected left and right.

[0192] In one embodiment, referring to FIG. 3(c), when one battery block (110) in the center of the second layer is replaced, the block connecting member (101) for vertical connection of the battery block (110) can be moved in the C direction and connected vertically.

[0193] In one embodiment, the direction in which the modular blocks are removed and replaced and connected is not limited to directions A, B, and C.

[0194] In one embodiment, the block connecting member (101) for horizontal connection of the present disclosure may be a C-shaped bracket.

[0195] In one embodiment, the C-shaped bracket can perform the function of preventing gaps or steps between blocks by gripping the joint frame of each of the two modular blocks arranged side by side in a horizontal direction from the outside. For example, the C-shaped bracket is formed of a high-strength metal material so that it can firmly maintain the alignment between the blocks even in the event of external vibrations or ground subsidence. For example, when two blocks are arranged in close contact horizontally, the C-shaped bracket can connect the side vertical frame ends of the two blocks. For example, by applying a compressive force through a fastening bolt or wedge structure provided on the inside of the bracket, the airtight gasket between the blocks can be compressed to simultaneously ensure waterproof performance at the horizontal connection.

[0196] In one embodiment, the block connecting member (105) for vertical connection of the present disclosure may be a semi-automatic twist lock.

[0197] In one embodiment, the semi-automatic twist lock is inserted into the casting hole of an external port and operates, and may have a mechanism that switches to a locked state by the weight of the block without separate manual operation during the process of seating the upper block on the lower block. This can significantly increase the working speed during vertical stacking and ensure the safety of workers at heights.

[0198] For example, when a modular energy storage system container (100) stacks another battery block on top of a battery block in two layers, the semi-automatic twist lock is pre-installed on the four upper corners of the lower block, and then when a crane lowers the upper block and the casting part of the outer port comes into contact with the twist lock, the internal spring cam device rotates to integrate the upper and lower blocks. Through this, the modular energy storage system container (100) can have strong mechanical restraint so that the upper block does not detach or overturn even under strong winds or earthquake loads.

[0199] The container of the present disclosure may include a vertical hardware coupling device to suppress vertical movement between vertically stacked modules and to firmly support the load. As shown in the enlarged view according to FIG. 3(c), the vertical hardware coupling device may be a semi-automatic twist lock (105) that mutually fastens the opposing vertical corners of vertically stacked blocks (110, 120, 130). The semi-automatic twist lock (105) may be a fastening component made of a high-strength alloy material that is inserted into a casting corner groove formed at each corner of the block, and when the upper block is lowered and settled via a crane, an internal spring and metal pin mechanically rotate automatically to physically lock the upper and lower blocks. The semi-automatic twist lock (105) may be used for fastening between the first and second layers of battery blocks (110), and may be similarly applied to vertical fastening between chiller blocks (120) and electrical blocks (130).

[0200] As another variant embodiment, the vertical hardware coupling device may be replaced with or used in parallel with a manual twist lock in which a worker directly turns a lever, a hexagonal bolt and nut fastening assembly, or a hydraulic sliding pin coupling device. By applying a vertical direct connection structure based on such a semi-automatic twist lock (105), the vertical coupling rigidity between the upper and lower blocks can be increased beyond external loads even under a structure in which a separate thick steel skid frame is omitted. During on-site installation, the vertical alignment and locking processes are performed together by simply lifting and placing the structure with a crane, thereby achieving an improvement in mechanical structural performance that reduces the manpower and assembly time required for construction.

[0201] The container of the present disclosure may include a transverse hardware coupling device to prevent lateral separation between heterogeneous or homogeneous modules arranged horizontally adjacently and to maintain lateral rigidity. As shown in the enlarged view of FIG. 3(b), the transverse coupling device may be a C-shaped bracket (104) that binds the upper corners of the joint surfaces of blocks that come into contact with each other in the transverse direction. The C-shaped bracket (104) may be a bridge-type clamp structure having the shape of the letter C, and may be a physical member made of steel or special steel material in which protrusions at both ends are forcibly inserted into the upper surface holes of the upper casting corners of two blocks arranged side by side to fix the horizontal spacing between the blocks. The C-shaped bracket (104) may be arranged to connect the upper corners between the first battery block (110) and the second battery block (110), or to cross and connect the upper corners where the battery block (110) and the chiller block (120) come into contact. As a modified embodiment, the C-shaped bracket (104) may be symmetrically additionally fastened to the lower corner as well as the upper corner to additionally support horizontal loads, or a steel pin for horizontal fastening that penetrates the side hole may be additionally attached. By fastening the C-shaped bracket (104) made of such steel material to the uppermost joint surface of the block, structural twisting phenomena such as the individual blocks divided into 10-foot units detaching laterally or gaps opening up can be prevented even if strong external lateral shear loads, such as seismic vibrations or typhoons, occur. Accordingly, an effect of improving hardware safety can be provided to protect against damage to flexible cables and piping introduced into the container (100) and to increase the seismic design durability of the container (100).

[0202] The container of the present disclosure may include a structural selective maintenance method to prevent the shutdown and complete dismantling of the entire system in the event of a failure of a specific individual device among a plurality of stacked block hardware. This maintenance method may be a mechanism for separating only the target block by individually releasing the mechanical fastening of the semi-automatic twist lock (105) and the C-shaped bracket (104) only in the column where the failure occurred. In the event that a defect occurs in a specific battery block (110) located in the center of the first layer while assembled in a 2-layer, 3-column configuration as shown in FIG. 3, the system power may first be cut off, and the cables and piping based on the external port side quick connector connected to the bottom of the block may be physically separated. Afterward, the C-shaped bracket (104) attached to the top of the target block is removed and the handle of the semi-automatic twist lock (105) is rotated to release the connection. Then, without dismantling the other blocks in the adjacent left and right rows, a crane is used to first lift the upper 2nd-floor battery block of the corresponding row, and then only the target 1st-floor battery block is lifted vertically upward, thereby allowing the battery block to be independently removed from the container. This modular selective removal method can be applied in the same mechanical sequence when replacing (upgrading) the battery block (110) as well as the chiller block (120) or electrical block (130) with a next-generation high-efficiency model.

[0203] According to one embodiment of the present disclosure, a first embodiment may be applied in which a common lower support structure is installed at the bottom of the blocks to support the load of the entire system and to route power in parallel. As another embodiment, a second embodiment may be applied in which the entire shape is maintained solely by load support between the blocks and direct connection of the joint surfaces, with the common lower support structure excluded.

[0204] FIG. 4 is a drawing for explaining explosion-proof panels provided in a modular energy storage system container according to one embodiment of the present disclosure. Through FIG. 4 (a) and (b), the arrangement structure of the top explosion-proof panel (106) and the side explosion-proof panel (106) of a modular energy storage system container (100) according to one embodiment of the present disclosure is illustrated for comparison.

[0205] In one embodiment, referring to FIG. 4(a), the modular energy storage system container (100) may include at least one top explosion-proof panel (106). For example, if the modular energy storage system container (100) is in the form of three modular blocks stacked in two layers each, the battery modules provided at the top may include a top explosion-proof panel (106) on top of the battery modules.

[0206] In one embodiment, referring to FIG. 4(b), the modular energy storage system container (100) may include at least one side explosion-proof panel (107). For example, if the modular energy storage system container (100) is in the form of three modular blocks stacked in two layers, the battery modules provided at the top may include a side explosion-proof panel (107) on the rear of the battery modules.

[0207] In one embodiment, the modular energy storage system container (100) may include at least one side explosion-proof panel (107) on the top and / or rear of the battery module.

[0208] In one embodiment, the explosion-proof panel to which the present disclosure applies may be a rupture membrane type panel. For example, the rupture membrane type panel is a panel made of a high-strength thin film material designed to rupture at a specific critical pressure, and can be implemented with a simple structure and an extremely thin thickness, making it easy to satisfy the protrusion limit condition of 15 mm or less of the present disclosure. This allows the panel itself to rupture and form an immediate discharge path when the pressure inside the battery block rises rapidly.

[0209] In one embodiment, the explosion-proof panel to which the present disclosure applies may be a hinged relief type panel. For example, the hinged relief panel may be in a form where one side of the panel is connected to an enclosure frame by a hinged structure. For example, the hinged relief panel may normally remain in a closed state by a locking device, and when internal explosion pressure occurs, the locking part is released and the panel may unfold outward. For example, the hinged relief panel may be designed to open upward and take on a form optimized for upward guided evacuation that directs the direction of flame evacuation toward the sky.

[0210] In one embodiment, the explosion-proof panel to which the present disclosure applies may be a spring / shear bolt type panel. For example, the spring / shear bolt type panel may be a method of maintaining a closed state using mechanical fastening force (e.g., spring pressure or the breaking strength of the shear bolt). For example, the spring / shear bolt type panel may be a structure in which, when a pressure greater than a set pressure is applied, the fastening member breaks or the spring is compressed, causing the entire panel to be pushed outward to relieve the pressure.

[0211] In one embodiment, the explosion-proof panel can be attached in the following manner to prevent interference when stacking modular blocks and to maintain airtightness at all times.

[0212] In one embodiment, the attachment method of the explosion-proof panel may be a flush mounting method. For example, in the flush mounting method, the main body and the fastening frame of the explosion-proof panel may be recessed inward from the rear outer wall panel surface of the battery block, or the external protrusion may be attached flush so that it is 15 mm or less. For example, the flush mounting method may be characterized by preventing physical collisions or assembly errors caused by the protrusion of the panel even when multiple blocks are stacked in close contact horizontally or vertically.

[0213] In one embodiment, the attachment method of the explosion-proof panel may be a sealing gasket and clamping. For example, in the sealing gasket and clamping method, a gasket made of high-elasticity rubber or silicone material is interposed at the bonding interface between the panel and the block body, and the explosion-proof panel can be clamped and attached by a C-shaped bracket or a retainer frame under a certain pressure. This attachment method can guarantee a waterproof and dustproof rating of IP65 or higher in a sealed environment where an internal dehumidifier and heat exchanger are operated.

[0214] In one embodiment, the attachment method of the explosion-proof panel may be anti-fragmentation tethering. For example, the anti-fragmentation tethering method may be attached by being physically restrained to the main body frame through high-strength wires or tethers to prevent panel fragments from flying far out and causing damage to surrounding equipment or people when the panel is opened or ruptured by pressure.

[0215] In one embodiment, the attachment method of the explosion-proof panel may be a shear pin-based precision attachment. For example, in a shear pin-based precision attachment method, the four corners of the panel are fixed with precisely designed shear pins or shear bolts, and an attachment structure can be formed such that all fastening parts break simultaneously as soon as the internal pressure reaches a reference value (e.g., 0.1 to 0.5 bar), allowing the panel to be opened without delay.

[0216] In one embodiment, the explosion-proof panel may be a safety defense component made of stainless steel that mechanically opens its physical panel structure to forcibly release explosive force when the internal pressure reaches a preset threshold, for example, of 25 to 100 mbar. As a variation, the explosion-proof structure may be applied independently in both an embodiment environment where blocks are stacked on a common lower support structure (skid) and an embodiment environment where blocks are directly connected by their own weight without a lower skid. By applying this explosion-proof panel structure to a modular container, the pressure inside the sealed container can be immediately relieved even in the event of an unexpected chain explosion of battery cells, thereby preventing catastrophic mechanical damage such as the rupture or collapse of the entire housing. Additionally, this can achieve an enhanced durability effect that confines explosion damage to the block in question and prevents the disaster from spreading to surrounding high-value electrical components or other systems.

[0217] The present disclosure may include an integrated safety venting structure for hydrodynamically linking multiple battery storage spaces into one to centrally vent explosion pressure. As a middle concept, as illustrated in FIG. 4(a), the integrated safety venting structure may be an upper explosion-proof panel (106) installed on the upper ceiling (roof) surface of multiple stacked battery blocks. As a definition of claim terms and hardware configuration, the upper explosion-proof panel (106) may be a large-area roof-type pressure venting mechanism that is bolted to cover a perforated area of ​​the roof surface and includes a silicon gasket for airtightness. As a lower concept and a variation of the spatial coupling embodiment, when a stacked structure is applied, multiple vertically stacked battery blocks may be integrated and connected into a single space (1 room) where internal pressure is shared by opening the inter-layer partitions. As another additional variant embodiment, the upper explosion-proof panel (106) may be configured in at least one of the following forms: a bursting foam form in which the entire panel breaks the rupture pin and completely separates and flies vertically upward when pressure rises, or a door form that opens by popping up around one hinge. By adopting this single-room integrated and ceiling-type upper explosion-proof panel (106) structure in hardware, the discharge area can be maximized in the upward direction where the strongest pressure is concentrated during an explosion, thereby dramatically increasing the gas discharge speed. Additionally, since there is no need to attach a separate explosion-proof device to each floor, the structural simplicity of the system's exterior can be ensured, and the mechanical design optimization effect can be provided to reduce panel component costs and assembly labor.

[0218] The container of the present disclosure may include an independent split safety venting structure to control explosion pressure on an individual module basis while eliminating physical interference between modules so that modules can be stacked vertically. As illustrated in FIG. 4(b), the independent split safety venting structure may be a side explosion-proof panel (107) structure that is individually placed on the rear wall of each of the plurality of battery blocks in place of a roof surface. The side explosion-proof panel (107, or rear wall-type explosion-proof panel) may be a wall-type explosion vent designed to open when the container is placed in a rear-mounted structure. In order to stack the plurality of blocks in two or more layers according to the modular container structure, the side explosion-proof panel (107) may be configured to remain in a folded state, adhering closely to the housing wall with an ultra-slim thickness of, for example, less than 15 mm, so that no external protrusions occur under normal circumstances. As a modified embodiment, since the risk of explosion is relatively low in the case of the electric block, the rear cable entry point can be placed instead of the side explosion-proof panel (107) to diversify the functional utilization of the space. As this individual split-type and slim-type side explosion-proof panel (107) structure is applied to the modular container, the problem of mechanical assembly interference of the explosion-proof mechanism, which inevitably occurs between upper and lower blocks when stacking modules vertically, can be resolved. Accordingly, the vertical space density of the container can be maximized regardless of the presence or absence of a lower skid, and individual separation can be allowed without damaging the explosion-proof structure of other blocks even during future independent maintenance of the lower battery block.

[0219] The container of the present disclosure may include an angle limiting mechanism to prevent secondary disaster transmission to adjacent facilities by mechanically controlling the directionality of flames ejected outward in the event of a fire and explosion. The angle limiting mechanism may be a hinge limiting structure that controls the physical trajectory of opening when the side explosion-proof panel (107) is opened by an internal explosion. The opening angle refers to the maximum angle of expansion formed relative to the outer wall of the container when the panel is pushed out, and may be physically limited, for example, by means of steel supports or wire ropes. As a modified embodiment, the side explosion-proof panel (107) may be mechanically limited so that it does not completely fall off upon explosion but opens around a bottom or top hinge, while the direction of flame ejection is limited to, for example, an upward angle of 45 degrees. As a modified embodiment, under a rear-mounted structure in which modular containers face each other's rears, the upward flame exhaust mechanism can form a safe trajectory so that flames do not reach the opposite equipment even in an extremely narrow environment where the maintenance gap between the two containers is, for example, only 800 mm. As this upward (e.g., 45 degrees) opening angle limiting mechanism is implemented in hardware, the fatal radiation phenomenon of explosive flames spreading widely in the horizontal direction can be blocked.

[0220] FIG. 5 is a drawing illustrating piping and cable connections within a modular energy storage system container according to one embodiment of the present disclosure.

[0221] In one embodiment, referring to FIG. 5, the modular energy storage system container (100) may include a cooling water pipe (200) and a power cable (300).

[0222] Figure 5 illustrates an exemplary enlarged exploded view showing the connection interface and airtight structure between heterogeneous blocks of a modular energy storage system container.

[0223] The container of the present disclosure may include a direct connection interface configuration for transferring cooling fluid and high-capacity power between spatially divided heterogeneous or homogeneous hardware modules. The direct connection interface may include a block connecting member (101) and an external port (102) that mediate electrical and fluid conduction between a battery block (110), a chiller block (120), an electrical block (130), and a common lower support structure (140).

[0224] In one embodiment, the block connecting member (101) may refer to an integral connection assembly that interconnects modules (e.g., blocks) inside a container by penetrating the outer wall of the housing of separated physical blocks. A direct connection interface may be implemented using the block connecting member (101). The direct connection interface in this disclosure may refer to a connection and routing structure in which electrical and fluid are directly exchanged through a joint surface where spatially separated heterogeneous blocks meet in a horizontal or vertical direction, without passing through an intermediate bypass medium such as a common lower support structure. The block connecting member (101) may refer to a hardware connection component or an assembly of components mounted on the outer wall (e.g., joint surface) of a block to physically implement the direct connection interface.

[0225] In one embodiment, the block connecting member (101) can implement a connection between cables and / or a connection between pipes.

[0226] In one embodiment, the block connecting member (101A) may correspond to the cooling water pipe (200) or include at least a portion of the cooling water pipe (200A). For example, if the block connecting member (101A) corresponds to the cooling water pipe (200) or includes at least a portion of the cooling water pipe (200), the block connecting member (101A) may be a combination of a cooling water pipe (female) (200A) and a cooling water pipe (male) (200B). For example, if the block connecting member (101) is a combination of a cooling water pipe (female) (200A) and a cooling water pipe (male) (200B), a plurality of containers (100) may be connected by the combination of the cooling water pipe (female) (200A) and the cooling water pipe (male) (200B).

[0227] In one embodiment, the block connecting member (101B) may correspond to the power cable (300) or include at least a portion of the power cable (300). For example, if the block connecting member (101A) corresponds to the power cable (300) or includes at least a portion of the power cable (300), the block connecting member (101B) may be a combination of the power cable (female) (300A) and the power cable (male) (300B). For example, if the block connecting member (101B) is a combination of the power cable (female) (300A) and the power cable (male) (300B), a plurality of containers (100) may be connected by the combination of the power cable (female) (300A) and the power cable (male) (300B).

[0228] The external port (102) may be a base component formed in the shape of a metal perforation so that a cable or piping can protrude or be drawn in from the outside of the housing. The direct connection interface may be directly connected horizontally or vertically between the battery block and the electrical block without a common lower support structure. In another embodiment, the direct connection interface may form a hierarchical routing structure that is drawn vertically downward from the bottom of the blocks toward the common lower support structure and is directly connected to the busbar inside the skid. By applying this joint surface-based direct connection interface hardware structure, the physical length of wiring and piping, which required tens of meters per device in conventional systems, can be reduced to the shortest distance (e.g., a few centimeters), thereby minimizing power transmission losses inside the container and dramatically increasing the device mounting volume density within a narrow space.

[0229] The container of the present disclosure may include a fluid circulation hardware device for distributing a cooling medium generated to control heat generation to a plurality of modules in parallel. As illustrated in the upper and lower right of FIG. 5, the fluid circulation hardware device may include a cooling water pipe (200) and a cooling water pipe path connecting a chiller block (120) and a battery block (110). The cooling water pipe may be a tube structure formed of high-strength synthetic rubber or a metal alloy material to withstand high internal water pressure. As a coupling method, the cooling water pipe (200) may have a push-pull type male-female coupling structure in which a cooling water pipe (female) (200A) provided in one block and a cooling water pipe (male) (200B) provided in the other block are slidably inserted in a horizontal or vertical direction to be coupled. As a modified embodiment, if the lower support structure is omitted, the pipe routing may be routed directly only in the horizontal direction between the plurality of battery blocks. In addition, as a modified embodiment of the two-layer stacked structure, the left chiller pipe inside the chiller block can be directly connected vertically to the battery block of the upper layer, and the right chiller pipe can be connected horizontally to the battery block of the lower layer. By implementing such a direct routing structure for independent cooling water pipes for each layer or block, the technical effect of physically preventing a drop in water head pressure even in a multi-layer stacked environment, thereby enabling the stable supply of cooling water with a uniform flow rate to each battery rack without the need for additional hydraulic pumps or motors, can be achieved.

[0230] The container of the present disclosure may include an electrical routing device for transmitting high-capacity power output or input from a battery to a control device without loss. As illustrated in the upper and lower left of FIG. 5, the electrical routing device may include a power routing structure, a chiller power path, an externally exposed power cable, and a quick connector. The power cable may be a flexible cable made of a highly conductive copper (Cu) core wire and an insulating sheath capable of accommodating a high voltage (HV) high current of up to 350A. The quick connector may be connection hardware in which the male and female terminals are connected by a snap motion of twisting or pushing without the need for a separate hand tool. The quick connector may be integrally provided at both ends of the power cable (female) (300A) and the power cable (male) (300B) to physically and electrically connect them to each other. As a modified embodiment, in the case of an embodiment in which the upper support structure is excluded, battery power can be directly output to an external site network through a quick connector after passing through a DC power control device (DCPM), a power conversion device (PCS), and a fuse. On the other hand, in the case of an embodiment in which a common lower support structure is applied, power passing through the fuse can be introduced into the lower support structure (140) through the flexible power cable and sequentially passed through the first internal busbar and skid connection to be output to the outside or extended in parallel to an adjacent container. By adopting a hardware structure combining a flexible material-based power cable and a high-current quick connector, mechanical assembly errors of several millimeters that inevitably occur when stacking heavy modules weighing several tons in layers using a semi-automatic twist lock, etc., can be flexibly absorbed.Furthermore, this protects against terminal detachment or contact failure even in environments with fine vibrations from fans during power plant operation, thereby minimizing the probability of arc generation and reducing the time required for labor-intensive electrical wiring processes where workers must manually strip insulation and bolt on-site.

[0231] The container of the present disclosure may include an airtight and sealing hardware structure to prevent the interface area extending outside the housing of the block from being contaminated by external environmental factors (e.g., water, dust). The sealing hardware structure may be a cable gland structure that is fastened to a connecting member between the blocks and a perforated hole of an external port, as illustrated in the center of FIG. 5. As a definition of the terms of the claim and as a hardware component, the cable gland may be an assembly of bushings and joint parts that prevent damage to the wire sheathing and physically compress and seal gaps when a power cable or cooling water pipe passes through the metal housing. The cable gland (400) may have a multi-seal structure comprising a lock-nut assembly made of high-quality polyamide material, a silicone gasket, and a flexible conduit protection tube.

[0232] In one embodiment, the modular energy storage system container (100) may include a cooling water pipe (female) (200A) on one side and a cooling water pipe (male) (200B) on the other side. For example, the cooling water pipe (female) (200A) may be provided horizontally within the modular energy storage system container (100). For example, the cooling water pipe (female) (200A) may be provided horizontally within the modular block and / or common lower support structure (140). For example, the cooling water pipe (male) (200B) may be provided vertically within the modular energy storage system container (100). For example, the cooling water pipe (male) (200B) may be provided vertically within the modular block. For example, when a battery block (110) includes a cooling water pipe (female) (200A) and a chiller block (120) includes a cooling water pipe (male) (200B), and the battery block (110) and the chiller block (120) are combined, the cooling water pipe (female) (200A) and the cooling water pipe (male) (200B) are joined together (e.g., by a snap-fit) so that a cooling medium provided inside the chiller block (120) can be introduced into the battery block (110). The cooling medium introduced into the battery block (110) can absorb heat generated from the battery rack and be returned to the chiller block (120).

[0233] As another example, the cooling water pipe (female) (200A) may be provided vertically within the modular energy storage system container (100). For example, the cooling water pipe (female) (200A) may be provided vertically within the modular block and / or common lower support structure (140). For example, the cooling water pipe (male) (200B) may be provided horizontally within the modular energy storage system container (100). For example, the cooling water pipe (male) (200B) may be provided horizontally within the modular block. For example, when a battery block (110) includes a cooling water pipe (female) (200A) and a chiller block (120) includes a cooling water pipe (male) (200B), and the battery block (110) and the chiller block (120) are combined, the cooling water pipe (female) (200A) and the cooling water pipe (male) (200B) are joined together (e.g., by a snap-fit) so that a cooling medium provided inside the chiller block (120) can be introduced into the battery block (110). The cooling medium introduced into the battery block (110) can absorb heat generated from the battery rack and be returned to the chiller block (120).

[0234] In one embodiment, the modular energy storage system container (100) may include a power cable (female) (300A) on one side and a power cable (male) (300B) on the other side.

[0235] In one embodiment, the modular energy storage system container (100) may include a power cable (female) (300A) on one side and a power cable (male) (300B) on the other side. For example, the power cable (female) (300A) may be provided horizontally within the modular energy storage system container (100). For example, the power cable (female) (300A) may be provided horizontally within the modular block and / or common sub-support structure (140). For example, the power cable (male) (300B) may be provided vertically or horizontally within the modular energy storage system container (100). For example, the power cable (male) (300B) may be provided vertically or horizontally within the modular block. For example, when a battery block (110) includes a power cable (female) (300A) and an electrical block (130) includes a power cable (male) (300B), and the battery block (110) and the chiller block (120) are combined, the power cable (female) (300A) and the power cable (male) (300B) are joined together (e.g., by a snap-fit) so that power generated inside the electrical block (130) can be introduced into the battery block (110). The power introduced into the battery block (110) can be transferred to a battery rack and used to charge the battery.

[0236] As another example, a power cable (female) (300A) may be provided in a vertical or horizontal direction within a modular energy storage system container (100). For example, the power cable (female) (300A) may be provided in a vertical or horizontal direction within a modular block and / or a common sub-support structure (140). For example, a power cable (male) (300B) may be provided in a horizontal direction within a modular energy storage system container (100). For example, a power cable (male) (300B) may be provided in a horizontal direction within a modular block. For example, when a battery block (110) includes a power cable (female) (300A) and an electrical block (130) includes a power cable (male) (300B), and the battery block (110) and the chiller block (120) are combined, the power cable (female) (300A) and the power cable (male) (300B) are joined together (e.g., by a snap-fit) so that power generated inside the electrical block (130) can be introduced into the battery block (110). The power introduced into the battery block (110) can be transferred to a battery rack and used to charge the battery.

[0237] In the present disclosure, the orientation in which the cooling water pipe (200) and power cable (300) are arranged is not limited to the examples listed and may be modified according to the user's needs.

[0238] In one embodiment, the cooling water pipe (female) (200A) may include a lock nut (female) (210A) and a waterproof ring (230A).

[0239] In one embodiment, the lock nut (arm) (210A) securely fastens the pipe port to the outer wall housing of the battery block (110) to prevent the pipe from coming loose due to external impact or water pressure generated during cooling water circulation.

[0240] In one embodiment, the waterproof ring (230A) is formed of a high-elasticity silicone or synthetic rubber material, and can ensure high-grade waterproof performance by physically compressing the fine gap between the interfaces when the male and female pipes are joined.

[0241] For example, the waterproof ring (230A) inside the cooling water pipe (female) (200A) installed at the bottom outer port of the battery block (110) can be tightly fitted to the inner wall of the pipe so as to wrap around it when a male terminal extending from the chiller block (120) is inserted, thereby preventing the high-pressure cooling medium from leaking out.

[0242] In one embodiment, the cooling water pipe (water) (200B) may include a lock nut (water) (210B) and a gasket (220B).

[0243] In one embodiment, the gasket (220B) is located at the tip of the male terminal and can be directly compressed to form a seal when connected to the cooling water pipe (female) (200A) in a push-pull manner.

[0244] In one embodiment, the lock nut (male) (210B) can provide structural stability to the joint by suppressing rotation or horizontal movement of the pipe after joining.

[0245] For example, when transferring coolant generated from the left chiller (121) of the chiller block (120) to the two-layer battery block, the vertically routed coolant pipe (water) (200B) can maintain a stable fluid connection state while absorbing assembly errors of several millimeters that occur during stacking between blocks by utilizing the compressive force of the gasket (220B).

[0246] In one embodiment, the power cable (female) (300A) may include a lock nut (female) (310A) and a lock nut (male) (310B).

[0247] In one embodiment, the power cable (female) (300A) takes the form of a flexible cable (401) structure for transmitting high voltage (HV) high current, and the cable is secured without shaking within the block housing or cable gland (400) through a double lock nut (310A, 310B) fastening structure. This distributes the physical tensile load applied to the connection terminal by the weight of the cable, thereby minimizing the risk of electrical connection failure or arc generation.

[0248] For example, when routing power from a DC power control device (141) inside a battery block (110) to a power converter (142) of an electrical block (130), the lock nuts (310A, 310B) provided at the bottom of each block physically restrain the high-capacity cable, thereby ensuring a stable electrical conduction state even in a vibrating environment during container movement.

[0249] FIG. 6 is a drawing for explaining the configurations within a block constituting a modular energy storage system container according to one embodiment of the present disclosure.

[0250] Referring to FIG. 6, a modular energy storage system container (100) that does not include a common lower support structure (140) is disclosed. In FIG. 6, the internal hardware device arrangement and routing structure of the modular energy storage system container (100) are schematically illustrated.

[0251] In one embodiment, the battery block (110) is configured such that the explosion-proof panel is deployed upward to avoid pressure discharge interference of the upper layer when vertically stacked, and includes a quick connector-based interface on the side or bottom for connecting DC cables and cooling water plumbing between adjacent blocks.

[0252] In one embodiment, the battery block (110) may include a DC power control device (DCPM) for managing DC power. For example, a battery rack within the battery block (110) may be managed by the DC power control device, and the DC power control device may supply DC power to the battery rack using power obtained from the electrical block (130). For example, the battery block (110) is fixedly mounted integrally with the battery rack to control power, and the energy density of the system is approximately 450 kWh / m² per unit area. 2 It can provide technical effects that improve up to.

[0253] In one embodiment, there may be at least two chiller blocks (120), and they may be arranged as a left chiller and a right chiller depending on the installation location and assigned area. For example, each chiller block (120) can deliver a cooling medium to different battery blocks among a plurality of battery blocks. For example, if the battery blocks are arranged in two rows, the left chiller can deliver a cooling medium to the battery blocks arranged in the left row, and the right chiller can deliver a cooling medium to the battery blocks arranged in the right row. Depending on the implementation, a chiller block (120) using a single chiller is also possible.

[0254] In one embodiment, the electrical block (130) may be a module that integrates power conversion and control of the entire system. For example, the electrical block (130) may include a power conversion device (PCS) (142), a (auxiliary) transformer (134), and an uninterruptible power supply (UPS) (131). Additionally, the electrical block (130) may include a system battery management system (SBMS) for monitoring the battery status of the entire system and a fire alarm controller (FACP) (132) for fire detection and control. As the skid is excluded, the electrical block (130) may function as an integrated infrastructure base by housing the AC power supply (131), fire alarm controller (132), heat exchanger (133), and transformer (134) all internally, in addition to the power conversion device (142).

[0255] The container (100) of the present disclosure may be configured as an integrated infrastructure hardware system that performs storage, control, conversion, and thermal management of large-capacity power. As illustrated in FIG. 6, the integrated infrastructure hardware system may include a plurality of battery blocks (110), chiller blocks (120), and electrical blocks (130) having housings independent of function.

[0256] The modular energy storage system container (100) may be an energy storage structure for a large-scale power plant in which multiple standardized modules are assembled and connected to a power grid. The battery block (110) may be a space for physically storing power, the chiller block (120) may be a space dedicated to thermal management for cooling the heat generated by the battery, and the electrical block (130) may be a space dedicated to power management for converting power and controlling a safety system.

[0257] The container (100) may have a direct connection structure in which the battery block (110), chiller block (120), and electrical block (130) are directly connected to each other in a vertical or horizontal direction solely by their own weight, with the common lower support structure (140) completely excluded.

[0258] The container (100) of the present disclosure may include power storage and control hardware that physically stores DC power and directly controls the input and output of said power at a lower level. The power storage and control hardware may be at least one battery block (110) that includes a plurality of battery racks and a DC power control device (141) inside. The battery rack may be a physical frame in which a plurality of battery cells that charge and discharge energy are stacked in layers. The DC power control device (141) may be a hardware control panel that monitors the voltage and current status of the battery and forcibly switches and cuts off the DC power in the event of an abnormality.

[0259] In a container (100) in which a common lower support structure (140) is excluded, a DC power control device (141) is fixedly positioned in the lowest central area inside each battery block (110) in place of the lower skid and can be electrically connected directly to the battery rack.

[0260] Additionally, in the case of an embodiment where a skid is present, the power inside the battery block (110) stacked in multiple layers can be controlled after being collected first by a DC power control device (141) located at the bottom of the first layer. By adopting a hardware structure in which the DC power control device (141) is directly embedded in the bottom part of the block, the battery control and cutoff functions can be performed independently and completely without mounting control components on a heavy steel skid frame, and the length of the physical DC cable wiring between the battery and the controller can be minimized to suppress power transmission loss (voltage drop) that inevitably occurs during operation and provide a structural performance enhancement effect that dramatically improves hardware control reliability.

[0261] The power converter (142) may be a high-capacity high-voltage inverter that converts the DC power of the battery into AC power for transmission to the power grid. The uninterruptible power supply (131) may be an uninterruptible power supply (UPS) that continuously supplies auxiliary control power to the control system even in the event of an external power grid outage. The transformer (134) may be electromagnetic induction hardware that independently steps down or steps up the voltage to drive electrical components. The fire alarm controller (132) may be a fire control panel that processes disaster signals in conjunction with smoke detectors, etc., within the battery module. The heat exchanger (133) may be heat dissipation hardware that releases heat generated from electrical components to the outside through cooling water or air.

[0262] The electrical block (130) can collectively accommodate electrical components (131, 132, 133, 134, 142) in its internal space to replace the equipment mounting function performed by the common lower support structure (skid). As a modified embodiment of the external site network entry, an external site cable for transmitting and receiving power can be directly introduced into the container through a hole drilled in the rear panel or lower panel of the electrical block (130) and directly connected to a transformer (134) or a power converter (142). In this way, by concentrating and mounting the high-capacity power converter (142) and control electrical components, which pose a high-voltage risk, inside a separate, independent electrical block (130) housing, a physical firewall effect can be provided to prevent flames from spreading to expensive electrical components in the event of a battery thermal runaway fire.

[0263] The container (100) of the present disclosure can achieve the effect of simultaneously improving mechanical and electrical performance by completing the complex and difficult wiring connection work, which was involved when the existing skids were scattered and distributed, in advance at the factory assembly stage within a single module, thereby drastically reducing labor costs and installation time for electrical work at the site.

[0264] The container (100) of the present disclosure may include a left chiller and a right chiller provided inside a chiller block (120) to generate and distribute a cooling medium in parallel to a plurality of modules that generate heat during system operation. The chillers may be liquid cooling temperature control devices that generate a coolant through a compressor and a condenser and circulate it through pipes. When the battery block (110) is stacked in a vertical two-layer structure as shown in FIG. 6, the left chiller may be independently connected to the cooling water pipe of the upper two-layer battery block without the additional installation of a separate external hydraulic pump or motor, and the right chiller (122) may be horizontally independently connected to the cooling water pipe of the lower one-layer battery block. The cooling water generated in the chiller block (120) may also be routed in parallel to the heat exchanger (133) inside the adjacent electrical block (130) to simultaneously control the temperature of the power components. By implementing this dual chiller structure and a layer-by-layer individual direct piping routing method, the phenomenon of water head drop inside the piping, which has been a chronic issue under multi-layered stacked module structures, can be overcome. Accordingly, the power consumed for pump operation can be drastically reduced, and at the same time, a uniform flow rate of cooling water can be stably supplied to the entire upper and lower battery modules, thereby achieving a maximization of thermodynamic performance that suppresses the risk of thermal runaway disasters.

[0265] The container (100) of the present disclosure may include a hierarchical electrical routing sequence structure for collecting power produced from individual modules and safely transmitting it to an external transmission network. The routing sequence may be a power path in which power released from the battery block (110) sequentially passes through the DC power control device (141) and the power converter (142) of the electrical block (130). The battery power may sequentially pass through the DC power control device (141), the power converter (142), and the fuse, be collected at the busbar inside the electrical block (130), and then be directly transmitted to a cable at an external site.

[0266] In an alternative embodiment, where a skid exists, power passing through the fuse is fed downward along the main power cable and interfaces with a first internal busbar pre-embedded inside the common lower support structure, and subsequently passes sequentially through the skid connection part and the second internal busbar of another skid in an adjacent container to finally form a sequence of parallel integrated output to an external network.

[0267] FIG. 7 is a diagram illustrating, in an exemplary manner, the connection structure of blocks constituting a modular energy storage system container according to one embodiment of the present disclosure. FIG. 7 schematically illustrates an internal routing path between heterogeneous blocks of a modular energy storage system container (100). The power routing structure (500) and the cooling water piping path (510) can provide a physical trajectory through which current and a high-pressure cooling medium actually flow between the heterogeneous blocks.

[0268] Referring to FIG. 7, a modular energy storage system container (100) that does not include a common lower support structure (140) is disclosed. Through the structure of FIG. 7, a DC cable-based power routing structure (500) that interconnects an electrical block (130), a plurality of battery blocks (110), and a chiller block (120) without an intermediate medium, a cooling water piping path (510) based on cooling pipes, and a chiller power path (520) can be implemented.

[0269] In one embodiment, the modular energy storage system container (100) does not include a common lower support structure (140), so power generated in the electrical block (130) can be directly transferred to other blocks (e.g., battery block (110)) through a power routing structure (500). For example, the power routing structure (500) may include a power cable (300). For example, the power routing structure (500) may be connected vertically and / or horizontally from the electrical block (130) to the battery block (110). For example, the power routing structure (500) connected to the battery block (110) may be connected to a DC power control device within the battery block (110) to transfer power to the battery rack through the DC power control device.

[0270] In one embodiment, the modular energy storage system container (100) does not include a common lower support structure (140), so power generated in the electrical block (130) can be directly transferred to the chiller block (120) through the chiller power path (520). The power transferred through the chiller power path (520) can be used to cool a cooling medium within the chiller block (120). For example, the chiller power path (520) may include a power cable (300).

[0271] In one embodiment, the modular energy storage system container (100) does not include a common lower support structure (140), so the cooling medium provided in the chiller block (120) can be transferred to other blocks (e.g., battery block (110)) through the cooling water pipe path (510). The cooling medium transferred through the cooling water pipe path (510) can be used to cool the heat generated within the battery block (110). For example, the cooling water pipe path (510) may include a cooling water pipe (200). For example, the cooling water pipe path (510) may be connected from the chiller block (120) to the battery block (110) and may be provided between the battery racks included within the battery block (110). For example, it may be connected horizontally from the chiller block (120) to the battery block (110) and may be provided vertically between the battery racks included within the battery block (110).

[0272] In one embodiment, the chiller block (120) may be designed to independently route the generated coolant to each layer of the battery block (110) through the coolant pipes and to provide uniform cooling performance throughout the vertically stacked battery block (110) without the need for a separate additional pump. For example, the power and control signals for driving the chiller block (120) are configured to be transmitted in the horizontal and vertical directions through a chiller power control unit extending from the electrical block (130) since the common lower support structure (140) is not included.

[0273] In one embodiment, the chiller block (120) can independently deliver the generated coolant to each layer's battery block (110) through the coolant pipe path (510). For example, the left chiller (121) can directly supply coolant to the upper layer block, and the right chiller (122) can directly supply coolant to the lower layer block, thereby ensuring uniform cooling performance without an additional hydraulic pump.

[0274] The container (100) of the present disclosure can implement fluid circulation routing to control temperature by individually distributing a cooling medium in parallel to a battery rack area that generates heat. As illustrated in FIG. 7, fluid circulation routing can be implemented through a cooling water piping path (510) that branches and extends from the chiller block (120) to the battery block (110) and the electrical block (130), respectively. The cooling water piping path (510) may be in the form of a three-dimensional arrangement of cooling pipes made of high-strength synthetic rubber or metal alloy to withstand high internal liquid pressure and micro-vibrations of the system. Fluid circulation routing can be applied as an independent piping branch structure to the battery blocks (110) stacked in two layers as shown in FIG. 7. Without the installation of a separate hydraulic boosting pump or motor, the cooling water piping generated from the left chiller within the chiller block can be routed directly by vertically rising to the battery blocks located in the upper two layers and extending horizontally. In addition, the cooling water piping generated from the right chiller can be directly routed by extending horizontally to the battery blocks located on the lower 1st floor. As a modified embodiment, the cooling water piping path (510) output from the chiller block can also be routed horizontally in parallel toward the heat exchanger inside the adjacent electrical block to simultaneously control the heat generation of the electrical components. By applying a hardware structure for the direct connection of independent cooling water piping paths (510) separated by layer (e.g., 1:1 matching), the phenomenon of hydrostatic pressure drop that inevitably occurs when pulling up piping from the bottom to the top in a multi-layer block stacking environment of two or more layers can be blocked. As a result, the system operating power consumed to additionally drive a large-capacity hydraulic pump can be drastically reduced, and at the same time, cooling water of a uniform flow rate can be stably distributed without error across the entire upper and lower battery rack areas, thereby blocking the risk of disaster caused by battery thermal runaway.

[0275] In one embodiment, the electrical block (130) may be a module that integrates power conversion and control of the entire system. For example, since the electrical block (130) does not include a common lower support structure (140), it may include an AC power device including a power converter (142), an auxiliary transformer, a heat exchanger which is a thermal management device that releases heat inside the block to the outside or transfers heat generated in a specific block to a cooling medium to maintain the operating temperature of the components within an optimal range, and an uninterruptible power supply (UPS). For example, the electrical block (130) may also include a system battery management system (SBMS) that monitors the battery status of the entire system and a fire alarm controller for fire detection and control. For example, power output from the electrical block (130) may be directly transferred to a DC power control device (141) of the battery block (110) through a power routing structure (500) to control the charging and discharging of the battery rack.

[0276] In one embodiment, the electrical block (130) may be equipped with a dehumidifier for controlling internal humidity to protect sensitive electrical devices, and an air intake and an exhaust fan for releasing internal heat to the outside.

[0277] In one embodiment, routing of piping and power cables is performed only in the horizontal direction between battery blocks (110), and can be simultaneously connected in the horizontal and vertical directions from chiller blocks (120) and electrical blocks (130) to form a shortest path interface.

[0278] The container (100) of the present disclosure can implement high-voltage (hv) electrical routing to transfer large-capacity DC power, which is chemically released or charged from a battery module, to a power control device without loss. High-voltage electrical routing can be implemented by a power routing structure (500) and / or a DC cable that crosses the bottoms of a plurality of battery blocks and energizes the electrical blocks in a mutually transverse direction. The DC cable may be, for example, a flexible cable made of a highly conductive copper core wire and a flexible insulating sheath capable of safely accommodating a high-voltage high-current of up to 350A. With the common lower support structure (140) excluded, the power routing structure (500) may have an energization sequence in which power output from the battery rack is collected by a DC power control device (141) at the bottom of each battery block, then sequentially penetrates horizontally arranged neighboring battery blocks in a transverse direction, and finally enters the power converter side of the electrical block (130). As a modified embodiment, whenever the cable passes through the walls of heterogeneous blocks, a cable gland including a quick connector and a lock nut is fastened as a block connecting member in the external port area to form a hermetic binding structure that absorbs vibration.

[0279] The container (100) of the present disclosure may implement auxiliary power distribution for distributing auxiliary driving power and fire control signals for thermal management infrastructure from a centralized block to individual devices. Auxiliary power distribution may be implemented by a chiller power path that supplies auxiliary power and low-voltage power from an electrical block toward an adjacently assembled chiller block (120). The chiller power may be an AC or DC driving voltage supplied to physically rotate and drive the motors of the compressor, condenser, and ventilation exhaust fan mounted inside the chiller block. The chiller power path (520) may be structured such that it is generated from an AC power supply or a step-down transformer housed inside the electrical block and is fed into the chiller block by the shortest horizontal distance through a cable gland and a push-pull type quick connector provided on the side joint wall. As a modified embodiment, the chiller power path (520) may be configured such that not only power lines but also fire communication control cables linked to a fire alarm controller within the electrical block are routed together in parallel, thereby immediately and forcibly shutting off the operation and power of the chiller upon detection of smoke within the battery block. By applying a hardware routing architecture that collectively houses high-voltage electrical components and auxiliary control power devices within an independent electrical block housing and directly connects the chiller power path (520) to an adjacent chiller block, the direct transfer of flames to expensive core electrical components can be prevented in the event of a disaster fire, such as abnormal thermal runaway of the battery.

[0280] FIG. 8 is a drawing for exemplarily illustrating the internal structure and connection relationships of blocks constituting a modular energy storage system container according to one embodiment of the present disclosure.

[0281] Referring to FIG. 8, a modular energy storage system container (100) including a common lower support structure (140) is disclosed.

[0282] A schematic diagram illustrating the block-by-block accommodation relationship and control linkage structure of internal hardware components of a modular energy storage system container according to one embodiment of the present disclosure is illustrated in FIG. 8.

[0283] In one embodiment, when the modular energy storage system container (100) includes a common lower support structure (140), the battery block (110) may include only a battery rack and not a DC power control device within the battery block (110). For example, a DC power control device (141) that controls the power of the battery block (110) may be included in the common lower support structure (140). For example, the battery block (110) may include an exhaust fan and an air intake in addition to the battery rack.

[0284] In one embodiment, the chiller block (120) may be designed to independently route the generated coolant to each layer of battery blocks (110) through coolant pipes and to provide uniform cooling performance throughout the vertically stacked battery blocks (110) without the need for a separate additional pump. For example, power and control signals for driving the chiller block (120) are configured to be transmitted in horizontal and vertical directions through a chiller power control unit extending from a common lower support structure (140) and / or an electrical block (130).

[0285] In one embodiment, instead of the electrical block (130), the common lower support structure (140) may be a module that integrates power conversion and control of the entire system. For example, the common lower support structure (140) may include a power conversion device (142), an auxiliary transformer (134), a heat exchanger (133) which is a thermal management device that releases heat inside the block to the outside or transfers heat generated in a specific block to a cooling medium to maintain the operating temperature of the components within an optimal range, and an AC power device (131) including an uninterruptible power supply (UPS). For example, the common lower support structure (140) may also include a system battery management system (SBMS) that monitors the battery status of the entire system and a fire alarm controller (132) for fire detection and control.

[0286] In one embodiment, the common lower support structure (140) may be equipped with a dehumidifier for controlling internal humidity to protect sensitive electrical devices, and an air intake and exhaust fan for releasing internal heat to the outside.

[0287] In one embodiment, the components included in the battery block (110), chiller block (120), and electrical block (130) may differ depending on whether a common lower support structure (140) is included. For example, if a common lower support structure (140) is included, the battery block (110) may not include a DC power control device (141), and the DC power control device (141) may be included in the common lower support structure (140). For example, if a common lower support structure (140) is not included, the DC power control device (141) may be included in the battery block (110) and / or electrical block (130) instead of the common lower support structure (140).

[0288] In one embodiment, the container (100) can manage a plurality of battery blocks (110) by grouping them into units of PODs (e.g., PODs 1 to 4). For example, each POD is connected to a system battery management system (SBMS) within an electrical block (130) through an independent communication channel, and when a fire is detected or a voltage abnormality occurs in a specific POD, the circuit of that POD can be selectively cut off through the DCPM (141) and fire alarm controller (132) to maintain the availability of the entire system.

[0289] As illustrated in FIG. 8, the container (100) may be a modular energy storage system container (100) comprising a plurality of spatially and functionally divided battery blocks (110), chiller blocks (120), electrical blocks (130), and a common lower support structure (140). The modular energy storage system container (100) may be a power generation facility in which a plurality of standardized modules are assembled on-site. As a modified embodiment, the container (100) may include a common lower support structure (140) located at the lowest base and integrally supporting the upper blocks (110, 120, 130).

[0290] Depending on the implementation mode, as another embodiment, a direct routing structure may be applied in which the common lower support structure (140) is excluded and the frame is formed only by physical direct connection (e.g., semi-automatic twist lock and C-shaped bracket) between the battery block (110), chiller block (120), and electrical block (130).

[0291] By implementing a functional modular container architecture that encompasses both the presence and absence of a lower skid, the facility can be designed for easy horizontal and vertical expansion to suit the customer's site environment and required capacity. In particular, when the skid is excluded, the utilization of idle space within the module is maximized, thereby increasing the container's energy density to a maximum per unit area (e.g., 450 kWh / m²) and achieving performance improvements that reduce overall transportation costs.

[0292] The container (100) of the present disclosure may include a power storage and switching configuration that physically stores the DC power of battery cells and directly controls the input and output of said power at the bottom. As illustrated in FIG. 8, the power storage and switching configuration may be a battery block (110) comprising a plurality of battery rack areas and a DC power control device (141) electrically connected thereto. A battery rack area may be a hardware frame in which a plurality of cells and modules are stacked in series and parallel. The DC power control device (141) may be a high-voltage control panel that monitors the voltage and current status of the battery and cuts off a physical switch when an overcurrent occurs.

[0293] The present disclosure may include a central control configuration that performs AC / DC conversion of power and comprehensively manages auxiliary power and fire disasters of the entire system. The central control configuration may include a power converter (142), an AC power supply unit (131) housed within an electrical block (130), a fire alarm controller (132), a heat exchanger (133), and a (auxiliary) transformer (134).

[0294] As shown at the bottom of FIG. 8, in an embodiment where a skid is present, the power converter (142) and the dehumidifier are housed inside a common lower support structure (140), and the remaining control devices (131, 132, 133, 134) can be housed separately within an upper electrical block (130).

[0295] On the other hand, in the case of an embodiment without a common lower support structure (140), for example, an electrical block (130) can replace the skid to collectively accommodate all electrical control components, including a power converter (142), within a single housing.

[0296] The container (100) of the present disclosure may have a left chiller (121) and a right chiller (122) inside a chiller block (120), and a chiller piping structure. The chiller may be an independent water-cooled temperature control device that drives a compressor and a condenser to generate liquid cooling water. When a skid is applied, the cooling water may be concentrated inside the lower support structure (140) and then surge upward and be distributed to each block. On the other hand, in the case of an embodiment where the battery blocks (110) are stacked in two layers without a skid, the cooling piping of the left chiller (121) may be vertically extended upward to the upper (2nd layer) battery blocks and then directly connected horizontally without the installation of an additional hydraulic boosting pump, and the cooling piping of the right chiller (122) may be horizontally extended to the lower (1st layer) battery blocks to form a direct routing structure.

[0297] As a modified embodiment, some of the chiller piping can be directly connected in parallel with the heat exchanger (133) inside the full-length block (130). By adopting this left / right independent chiller (121, 122) configuration and the layered direct connection piping routing method, the phenomenon of water head reduction that inevitably occurs when pulling up piping from the bottom to the top when stacking modules to a height of two or more layers can be overcome.

[0298] The container (100) of the present disclosure may include a venting structure. The venting structure may include an external air inlet louver attached to the battery block (110), an exhaust fan for exhausting internal heat, and an explosion-proof panel device (106, 107). The explosion-proof panel device used in the present disclosure may collectively refer to any disaster safety assembly for physically detecting abnormal explosion pressure inside the container and safely releasing flames to the outside. The explosion-proof panel device may include the explosion-proof panel described above as a substantial opening and closing means or correspond thereto.

[0299] FIG. 9 is a drawing for explaining a member connecting power and cooling water pipes included in a modular energy storage system container according to one embodiment of the present disclosure. Referring to FIG. 9, an enlarged exploded view and an assembly view are presented showing a sealed coupling structure based on a quick connector and a cable gland (400) penetrating a block of a modular energy storage system container (100) according to one embodiment of the present disclosure.

[0300] Referring to FIG. 9, the modular energy storage system container (100) may include a cable gland (400) and a cable (401) to facilitate the installation of a cooling water pipe (200) and a power cable (300).

[0301] In one embodiment, the cable gland (400) may be a mechanism installed at the entry point of a cable (401) penetrating the outer wall of a block or common lower support structure (140) to firmly secure the cable and maintain a seal at the penetration point. For example, the cable gland (400) may be formed to include a gasket, a lock nut, and a dedicated connector.

[0302] In one embodiment, the cable gland (400) may be applied to a main power cable entry point for connection with an external site power grid, or may be used by being coupled to a through hole in a skid connection between containers.

[0303] In one embodiment, a cable gland (400) may be used to ensure electrical and fluid connection reliability between blocks. For example, the cable gland (400) (e.g., a conduit structure) may be applied to the inlet of a power cable (300) connecting the DC power controller (141) of the battery block (110) and the power converter (PCS) of the electrical block (130). By doing so, the cable gland (400) can block the intrusion of moisture or dust from the outdoor environment, thereby ensuring a waterproof and dustproof rating of IP65 or higher, and enabling stable power supply and signal transmission.

[0304] In one embodiment, the cooling water piping (200) path between the chiller block (120) and the battery block (110) may be arranged in parallel with the power cable (300). In this case, the cable gland (400) or busbar bushing may be connected to a side hole of the block connecting member (101) or common lower support structure (140) through which the cable and piping pass, thereby maintaining the airtightness of the entire system.

[0305] In one embodiment, to absorb vibrations occurring during the movement of the modular container or minute tolerances during on-site assembly, the cable gland (400) may be combined with a flexible cable (401) to form a flexible fastening structure. This can provide a technical effect of reducing errors occurring during assembly and relieving physical stress on the connection part.

[0306] In one embodiment, the cable gland (400) is applied to the penetration portion of the skid connection connecting the first common lower support structure and the second common lower support structure, thereby enabling the waterproof performance inside the container to be continuously maintained even during lateral parallel expansion.

[0307] In one embodiment, the cable (401) refers to a flexible line for transmitting power or control signals and may include a power cable (300) or a flexible cable having a structure in which a central circular conductor (stranded wire) is wrapped with an insulator and a sheath. For example, the cable (401) is suitable for wiring complex paths and can perform the role of absorbing vibrations and assembly errors.

[0308] In one embodiment, the cable gland (400) may be characterized by being applied as follows to ensure the reliability of the electrical and fluid connection between blocks using the cooling water pipe (200) and the power cable (300). For example, the cable gland (400) may be applied to the inlet of the power cable (300) connecting the DC power control device (141) of the battery block (110) and the power conversion device (PCS) of the electrical block (130). Through this, the cable gland (400) can block the intrusion of moisture or dust from the outdoor environment to ensure a waterproof and dustproof rating of IP65 or higher, and enable stable power supply and signal transmission.

[0309] In one embodiment, the cooling water piping (200) path between the chiller block (120) and the battery block (110) may be arranged in parallel with the power cable (300). In this case, the cable gland (400) or busbar bushing may be connected to a side hole of the block connecting member (101) or common lower support structure (140) through which the cable and piping pass, thereby maintaining the airtightness of the entire system.

[0310] In one embodiment, to absorb vibrations occurring during the movement of the container or minute tolerances during on-site assembly, the cable gland (400) may be combined with a flexible cable (401) to form a flexible fastening structure. This can provide a technical effect of reducing errors occurring during assembly and relieving physical stress on the connection part.

[0311] In one embodiment, the cable gland (400) is applied to the penetration portion of the skid connection connecting the first common lower support structure and the second common lower support structure, thereby continuously maintaining the waterproof performance inside the container even during lateral parallel expansion.

[0312] As illustrated in the right assembly diagram of FIG. 9, the container (100) may include a cooling water pipe (200) and a power cable (300) that extend to an adjacent block through a hole in the outer wall of the metal housing. The cooling water pipe may be a high-strength pressure-resistant tube for transferring liquid cooling water generated in the chiller block to the battery rack, and the power cable may be a highly conductive copper (cu) core wire-based wire capable of accommodating, for example, a high voltage (hv) of up to 350A.

[0313] In the case of an embodiment in which a common lower support structure (skid) is excluded, the power cable (300) and the cooling water pipe (200) can form a direct direct routing structure by directly engaging in horizontal and vertical directions through the joint surface between the battery block and the electrical block stacked vertically or horizontally.

[0314] In the case of an embodiment where a lower skid exists, the power cable (300) may be bent vertically downward and connected to a first internal busbar inside a common lower support structure, or arranged to connect adjacent skids in parallel in a lateral direction via a flexible busbar of the skid connection part.

[0315] The container (100) of the present disclosure may include a gap sealing and airtight structure to prevent the cable and piping areas passing through the thick metal housing from being contaminated by external harsh environmental factors (e.g., moisture, dust, salt). As shown in the left exploded view of FIG. 9, the airtight structure may be a cable gland (400) assembly that wraps around the outer surface of the cable (401) and is fastened by being forcibly compressed into a hole in the outer wall of the block. The cable gland (400) may be an assembly of multiple bushing components that prevent mechanical tearing damage to the wire sheath and hydrodynamically seal the gap. For example, the cable gland (400) may include a threaded lock-nut assembly, a gasket that physically expands by the tightening torque of the lock-nut to fill the gap, and a waterproof ring.

[0316] A sealing mechanism may be applied in which a silicone or rubber gasket (220B) and a waterproof ring (230A) are inserted into the connection portion of a cooling water pipe (female) (200A) and a cooling water pipe (male) (200B) having a male-female coupling structure, and a lock nut (female) (210A) and a lock nut (male) (210B) made of polyamide (pa6) are rotatably fastened and compressed around the outer portion.

[0317] In another embodiment, the connection portions of the power cable (female) (300A) and the power cable (male) (300B) can also be secured by compression using the lock nut (female) (310A) and the lock nut (male) (310B) in the same manner, and the externally exposed area can be additionally protected by a corrugated synthetic resin conduit tube cover. Explanation of the symbols

[0318] 100: Modular energy storage system container 101: Block connecting member 102: External Port 103: Quick Connector 104: C-shaped bracket 105: Semi-automatic twist lock 106: Top explosion-proof panel 107: Side explosion-proof panel 110: Battery Block 120: Chiller Block 121: Left chiller 122: Right chiller 130: Battlefield Block 131: AC power supply 132: Fire Alarm Controller 133: Heat exchanger 134: (Auxiliary) Transformer 140: Common substructure 141: DC power control device 142: Power converter 200: Cooling water piping 200A: Cooling water pipe (female) 200B: Cooling water piping (water) 210A: Lock nut (female) 210B: Lock nut (male) 220B: Gasket 230A: Waterproof ring 300: Power cable 300A: Power cable (female) 300B: Power cable (male) 310A: Lock nut (female) 310B: Lock nut (male) 400: Cable Gland 401: Cable 500: Power Routing Structure 510: Coolant Piping Path 520: Chiller power path

Claims

Claim 1 A modular energy storage system (ESS) container comprising a plurality of modular blocks, wherein at least one battery block comprising a battery rack and a DC power control device (DCPM) for controlling said battery rack; an electrical block comprising a power conversion device (PCS); and a chiller block providing cooling to said battery block; wherein the battery block, the electrical block, and the chiller block are directly joined to each other in a horizontal or vertical direction without a separate common lower support structure (skid), and electrical and fluid connections are made through the joint surfaces between said blocks, and said modular ESS container comprises: a semi-automatic twistlock for joining the upper and lower vertical corners between said blocks; A modular energy storage system container comprising at least one of a semi-automatic twist lock and a C-shaped bracket for joining the upper corners of the horizontal joint surfaces between the blocks, wherein the semi-automatic twist lock and the C-shaped bracket provide a direct joining structure for joining the shapes between the blocks and supporting the load by replacing the lower support structure (skid). Claim 2 In claim 1, the DC power control device (DCPM) is positioned in the inner lower part of the battery block in place of the common lower support structure (skid) and is directly connected to the built-in battery rack to control power, forming a modular energy storage system container. Claim 3 A modular energy storage system container according to claim 1, wherein the electrical block is configured to further include, together with the power conversion device (PCS), a transformer, an uninterruptible power supply (UPS), a dehumidifier, a fire alarm controller (FACP), and a heat exchanger inside, thereby replacing the function of the common lower support structure (skid). Claim 4 A modular energy storage system container according to claim 1, further comprising: a cable provided on the exterior of the container and connected to an external site power grid connected to transmit and receive power to the container; wherein the cable is directly introduced into the container through the rear panel or lower panel of the electrical block and connected to a transformer or power conversion device (PCS) inside the electrical block. Claim 5 A modular energy storage system container according to claim 1, further comprising a block connecting member that directly connects external ports of the battery block and the electrical block via a quick connector, wherein the block connecting member allows power output from a plurality of battery blocks to be directly routed to the electrical block. Claim 6 A modular energy storage system container according to claim 5, wherein the electrical connection between the DC power control device (DCPM) of the battery block and the power conversion device (PCS) of the electrical block is directly coupled to each other via the block connecting member including the quick connector and cable gland structure provided on the lower left or right side of each block. Claim 7 A modular energy storage system container according to claim 6, wherein a gland structure including a gasket, a lock-nut, and a dedicated connector and a flexible cable are applied to the hole of a block connecting member through which a cable between the blocks passes, so as to absorb vibration and assembly errors and perform a waterproof or dustproof function. Claim 8 A modular energy storage system container according to claim 1, wherein the cooling piping between the chiller block and the battery block is directly connected in a horizontal or vertical direction through a quick connector provided on the joint surface of the chiller block and the battery block, and the cooling water generated in the chiller block is directly supplied to each battery of the battery block. Claim 9 A modular energy storage system container according to claim 1, wherein, as the lower support structure (skid) is omitted, the routing of cables and piping between the blocks is routed only in the horizontal direction between the plurality of battery blocks, and simultaneously routed in the horizontal and vertical directions from the chiller block and electrical block to the battery block. Claim 10 A modular energy storage system container according to claim 1, wherein the battery blocks are arranged in a vertical two-layer stack, and the chiller blocks include independent first chillers and second chillers, wherein the piping of the first chiller is directly connected to the battery block of the upper layer and the piping of the second chiller is directly connected to the battery block of the lower layer, without the installation of additional pumps or motors. Claim 11 delete Claim 12 A modular energy storage system (ESS) container comprising a plurality of modular blocks, wherein the container comprises: at least one battery block comprising a battery rack and a DC power control device (DCPM) for controlling the battery rack; an electrical block comprising a power conversion device (PCS); and a chiller block providing cooling to the battery block; wherein the battery block, the electrical block, and the chiller block are directly connected to each other in a horizontal or vertical direction without a separate common lower support structure (skid), and electrical and fluid connections are made through the joint surfaces between the blocks; wherein the container further comprises rear wall-type explosion-proof panels individually installed on the rear of the battery blocks, wherein the rear wall-type explosion-proof panels are positioned on the rear of each battery block instead of the roof surface to allow for the application of a stacked structure of two or more layers to the plurality of blocks, and wherein the rear wall-type explosion-proof panels are configured to maintain a folded state without protruding parts under normal conditions and to open to discharge flames upward upon explosion. Claim 13 In claim 12, the rear wall-type explosion-proof panel is configured with a thickness to prevent structural interference during stacked assembly of the plurality of blocks, and is configured such that the angle at which the explosion-proof panel opens is limited to a preset upward angle when opened by an explosion, thereby reducing the required radius of the safety zone in the surrounding space, a modular energy storage system container. Claim 14 A modular energy storage system container according to claim 1, wherein the battery block, the electrical block, and the chiller block are each formed in a 10-foot (ft) bi-con standard, and the plurality of blocks are configured such that two blocks are combined during transport to be transported in a 20-foot high-cubic (HC) container unit, so as to avoid the container transport weight limit that occurs when a battery is loaded inside. Claim 15 A modular energy storage system container according to claim 1, wherein the battery block further comprises: a detachable assembly panel applied to the left side to allow initial loading of an internal battery; and a double door that opens and closes applied to the front to allow maintenance; and external ports of the battery block, which are coupled with a block connecting member for electrical and fluid connection between the plurality of blocks, are positioned at the lower part of the front of the battery block so as not to interfere with the opening space of the double door for maintenance. Claim 16 A modular energy storage system container according to claim 1, wherein power output from the battery block is transmitted to a busbar provided in the electrical block after sequentially passing through the DC power control device (DCPM), the power conversion device (PCS) of the electrical block, and a fuse, and then directly output to an external site power grid.

Images