Energy storage container

Abstract

The utility model provides a kind of energy storage container, including box, inverter cabin and direct current cabin.Inverter cabin is located in box, the bottom of inverter cabin has bottom disc, and bottom disc is provided with first drain hole.Direct current cabin is located in box, and direct current cabin and inverter cabin are arranged along the length direction of box, and wiring hole is provided between direct current cabin and inverter cabin, and along the height direction of box, wiring hole is higher than bottom disc.This scheme sets drain hole in the bottom of inverter cabin, which can effectively drain the water in the cabin.The design of wiring hole higher than bottom disc effectively avoids the contact of cable and water or humid environment on bottom disc, prevents the insulation performance of cable from being reduced due to damp, reduces the probability of occurrence of safety accidents such as cable short circuit and electric leakage, and ensures the electrical safety of energy storage container.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and more specifically to an energy storage container. Background Technology

[0002] In energy storage containers, the energy converter in the inverter compartment is a key component of the energy storage system, enabling bidirectional conversion between direct current and alternating current, and generating a significant amount of heat during operation. Some containers use simple natural ventilation methods, connecting the inverter compartment to the outside environment, which makes the inverter compartment prone to water ingress and water accumulation at the chassis.

[0003] In energy storage containers, power transmission and signal connection are achieved via cables between the DC compartment and the inverter compartment. If there is water accumulation on the inverter compartment chassis, the cables are prone to contact with the water, affecting their insulation performance and transmission stability.

[0004] Therefore, there is a need to provide an energy storage container to at least partially solve the above problems. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, this utility model provides an energy storage container, comprising:

[0007] Box;

[0008] An inverter compartment is housed within the enclosure. The bottom of the inverter compartment has a chassis, and the chassis is provided with a first drainage hole.

[0009] A DC compartment is located inside the enclosure. The DC compartment and the inverter compartment are arranged along the length of the enclosure. A wiring hole is provided between the DC compartment and the inverter compartment. The wiring hole is higher than the chassis along the height of the enclosure.

[0010] According to the first aspect of this utility model, the energy storage container has a first drainage hole at the bottom of the inverter compartment, which can effectively drain the water accumulated inside the compartment. The design of the cable routing hole being higher than the chassis effectively avoids the cables coming into contact with water or a humid environment on the chassis, preventing the insulation performance of the cables from deteriorating due to moisture, reducing the probability of safety accidents such as cable short circuits and leakage, and ensuring the electrical safety of the energy storage container.

[0011] Optionally, the housing includes a first side and a second side opposite to each other along its width direction;

[0012] At least a portion of the chassis is configured such that the portion located on the second side is higher than the portion located on the first side, and the first drain hole is located on the portion on the first side.

[0013] Optionally, the chassis includes:

[0014] The first plate is located on the first side and is constructed as a horizontally mounted flat plate.

[0015] The second plate is located on the second side, and the portion of the second plate that is farther away from the first plate is higher than the portion that is closer to the first plate.

[0016] Optionally, the second plate is constructed as an inclined flat plate, and the inclination angle between the second plate and the horizontal plane is 1° to 5°.

[0017] Optionally, a drain pipe is provided on the side of the first plate facing the outside of the box body, the drain pipe extends to the outside of the box body, and the first drain hole is formed in the drain pipe.

[0018] Optionally, the bottom of the inverter compartment is provided with a middle crossbeam, which extends along the width direction of the housing. At least a portion of the middle crossbeam is located above the chassis, and a second drainage hole is provided on the portion of the middle crossbeam located above the chassis.

[0019] Optionally, a rain eave is provided above the inverter compartment.

[0020] Optionally, the inverter compartment is used to install an energy storage AC device, which is provided with heat dissipation holes;

[0021] Projected along the height direction of the housing, the rain eaves are offset from the heat dissipation holes, and the distance between the rain eaves and the heat dissipation holes is 0-10mm.

[0022] Optionally, the inverter compartment is provided with a mesh grid on the side.

[0023] Optionally, the energy storage container is provided with a first functional column, a second functional column, and a third functional column arranged sequentially along the length of the container body; wherein,

[0024] The first functional column includes a transformer compartment, an electrical compartment, and an inverter compartment. The transformer compartment is located on the second side of the width direction of the enclosure, and the electrical compartment and the inverter compartment are located on the first side of the width direction of the enclosure. The electrical compartment is located below the inverter compartment.

[0025] The second functional column is the DC compartment, which is equipped with a battery cluster rack;

[0026] The first functional column includes a fire control compartment and a liquid cooling unit compartment. The fire control compartment is located on the first side of the width direction of the enclosure, and the liquid cooling unit compartment is located on the second side of the width direction of the enclosure.

[0027] Optionally, the rain eaves of the inverter compartment are located close to the transformer compartment, and the rain eaves are connected to the top wall of the transformer compartment. Attached Figure Description

[0028] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings,

[0029] Figure 1 This is a right-side view of an energy storage container according to a preferred embodiment of the present invention.

[0030] Figure 2 This is a top view schematic diagram of an energy storage container according to a preferred embodiment of the present invention;

[0031] Figure 3 For along Figure 2 A schematic diagram of the cross-section intercepted by the centerline AA;

[0032] Figure 4 For along Figure 2 A schematic diagram of the cross-section cut by the centerline BB;

[0033] Figure 5 for Figure 3 An enlarged schematic diagram of part A in the diagram;

[0034] Figure 6 for Figure 3 An enlarged schematic diagram of part B in the diagram;

[0035] Figure 7 for Figure 4 An enlarged schematic diagram of part C in the diagram;

[0036] Figure 8 This is a three-dimensional schematic diagram of an energy storage container according to a preferred embodiment of the present invention.

[0037] Figure 9 for Figure 8 An enlarged schematic diagram of part D in the diagram;

[0038] Figure 10 for Figure 9 An enlarged schematic diagram of part E in the diagram;

[0039] Figure 11 This is a left-side view of an energy storage container according to a preferred embodiment of the present invention.

[0040] Figure 12 This is a three-dimensional schematic diagram of an energy storage container from another perspective, representing a preferred embodiment of the present invention.

[0041] Figure 13 This is a front view schematic diagram of an energy storage container according to a preferred embodiment of the present invention;

[0042] Figure 14 This is a rear view schematic diagram of an energy storage container according to a preferred embodiment of the present invention.

[0043] Explanation of reference numerals in the attached figures

[0044] 10: Box

[0045] 11: First Function Column

[0046] 12: Second function column

[0047] 13: Third Function Column

[0048] 20: Transformer compartment

[0049] 21: Exchange Convergence Cabinet

[0050] 22: Control cabinet

[0051] 30: Inverter compartment

[0052] 31: Chassis

[0053] 32: First board

[0054] 33: Second board

[0055] 34: First drainage hole

[0056] 35: Middle crossbeam

[0057] 351: Second drain hole

[0058] 36: Drain pipe

[0059] 37: Eaves

[0060] 38: Energy Storage Converter

[0061] 39: Ventilation holes

[0062] 40: Electrical compartment

[0063] 50: DC compartment

[0064] 60: Fire Control Cabin

[0065] 70: Liquid-cooled unit compartment

[0066] 81: First dividing structure

[0067] 82: Second partition structure

[0068] 83: Third partition structure

[0069] 84: Fourth partition structure

[0070] 85: First wiring hole

[0071] 86: Second wiring hole

[0072] 87: Third wiring hole

[0073] 88: Fourth wiring hole

[0074] 89: Fifth wiring hole

[0075] 91: First step

[0076] 92: Second gear

[0077] 93: Third gear

[0078] 94: Seals

[0079] 95: Mesh grid barrier

[0080] 96: Ventilation blinds

[0081] DL: Length direction

[0082] DW: Width direction

[0083] DH: Altitude Detailed Implementation

[0084] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0085] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0086] In this document, ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0087] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0088] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0089] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0090] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0091] Reference Figures 1 to 14 This utility model provides an energy storage container, which is modified from a standard container (e.g., a 20-foot container). Based on the original container body 10, installation structures for various equipment are added, including sheet metal structural components (such as support frames and partitions), to ensure stable installation of the equipment without compromising the load-bearing capacity of the container body 10. The container body 10 integrates equipment such as a transformer, AC combiner cabinet 21, control cabinet 22, energy storage converter 38, battery, fire protection system, and heat dissipation system.

[0092] The energy storage container provides independent compartments for each piece of equipment, improving safety and ease of maintenance. Optionally, the container body 10 is provided with a first functional column 11, a second functional column 12, and a third functional column 13 arranged sequentially along the length direction DL of the container body 10. This three-column layout maximizes the use of the limited space of a standard container. The first functional column 11, the second functional column 12, and the third functional column 13 are described in detail below. The first functional column 11 is located at the front end of the container body 10, the second column is located in the middle of the container body 10, and the third column is located at the rear end of the container body 10. It should be noted that in this design, the container body 10 of the energy storage container includes a first side and a second side opposite each other along the width direction DW, where the first side is defined as the right side and the second side as the left side.

[0093]

First Function Column 11

[0094] Reference Figures 1 to 3 , Figures 8 to 13 The first functional row 11 includes a transformer compartment 20, an electrical compartment 40, and an inverter compartment 30. The transformer compartment 20 is located on the second side of the width direction (DW) of the enclosure 10, while the electrical compartment 40 and inverter compartment 30 are located on the first side of the width direction (DW) of the enclosure 10, with the electrical compartment 40 located below the inverter compartment 30. This layout considers both the electrical connections between devices and space utilization efficiency. Transformers are typically large and heavy; placing them on one side of the enclosure 10, and the electrical compartment 40 and inverter compartment 30 on the other side, helps maintain the balance of the enclosure 10's center of gravity and facilitates transportation and installation. The concentrated placement of the electrical compartment 40 and inverter compartment 30 on the other side also facilitates electrical connections between them and reduces cable length.

[0095] Inverter compartment 30 is used to install energy storage converter 38. As a key component of the energy storage system, the energy storage converter 38 enables bidirectional conversion between DC and AC power, generating significant heat during operation and requiring robust heat dissipation. This solution utilizes outdoor energy storage converter 38 modules. The energy storage converter boasts an IP67 protection rating. The outdoor energy storage converter 38 modules employ a string topology, offering higher efficiency compared to the commonly used centralized energy storage converter units. However, the string topology is less space-efficient than the centralized design, primarily due to the need for sufficient heat dissipation space between modules. Furthermore, the entire inverter compartment 30 is open-plan, posing a significant challenge for a standard 20-foot shipping container.

[0096] To meet the heat dissipation requirements of the energy storage converter 38, the inverter compartment 30 is located in one corner (upper right corner) of the enclosure 10 to reduce thermal interference with other heat-generating devices. Specifically, it is located at the top of the first side of the functional column.

[0097] Generally, refer to Figure 2The heat dissipation holes 39 of the energy storage converter 38 are located on its top, correspondingly, referring to Figure 2 and Figure 8 The air outlet of the inverter compartment 30 is located at its top. The top of the inverter compartment 30 (i.e., the top wall of the enclosure 10, above the energy storage converter 38) is designed with an open, unsealed hanging beam, allowing free airflow above the energy storage converter 38. Under natural convection, hot air rises and is exhausted through the open hanging beam area, while cool air is drawn in from below or around, creating good air circulation.

[0098] Because the top of the inverter compartment 30 is open, it is easy for water to enter. For example, in rainy weather, rainwater will flow directly into the inverter compartment 30, forming water accumulation on the chassis 31 of the inverter compartment 30. In some embodiments, a first drain hole 34 is provided on the chassis 31 of the inverter compartment 30 to drain the water accumulated on the chassis 31.

[0099] Optionally, at least a portion of the chassis 31 is configured such that the portion on the second side is higher than the portion on the first side, thereby more effectively draining water and preventing water accumulation in the inverter compartment 30 from damaging the equipment. The first drain hole 34 is located on the portion on the first side. That is, the left half of the chassis 31 is higher than the right half, and the first drain hole 34 is located on the right half. The first drain hole 34 is thus located on the side furthest from the transformer compartment 20.

[0100] In some embodiments, the entire chassis 31 can be configured as a uniform inclined plane, that is, a continuous slope from the second side to the first side, so that the water accumulated on the chassis 31 can flow smoothly forward along this slope to the first drain hole 34 for discharge.

[0101] In other embodiments, the chassis 31 is divided into several regions, with only the region near the second side (i.e., the left half) constructed to be higher than the region on the first side, creating a local tilt. This can also guide the water to flow to the right, while potentially reducing the impact on the overall structural design and manufacturing process of the chassis 31 to some extent.

[0102] Reference Figure 3 , Figure 5 and Figure 9Optionally, the chassis 31 includes a first plate 32 and a second plate 33. The first plate 32 is located on the first side and is constructed as a horizontally mounted flat plate. The second plate 33 is located on the second side, with the portion of the second plate 33 farther from the first plate 32 higher than the portion closer to the first plate 32. When rainwater or other liquids enter the inverter compartment 30 and fall onto the chassis 31, the portion of the second plate 33 farther from the first plate 32 is higher than the portion closer to the first plate 32, forming a sloping surface that guides the water flow towards the direction closer to the first plate 32, eventually converging into a pre-set drainage area (such as near the first drain hole 34), thereby effectively preventing water accumulation inside the compartment.

[0103] In addition, since the first plate 32 is located on the first side, that is, the side away from the transformer compartment 20, the impact of water accumulation on the transformer compartment 20 is reduced.

[0104] Optionally, the second plate 33 is constructed as an inclined flat plate, with an inclination angle α between the second plate 33 and the horizontal plane ranging from 1° to 5°. The inclination angle α can be, but is not limited to, 1°, 2°, 3°, 4°, and 5°. This range of inclination angles ensures that the drainage is not too slow due to an excessively small angle, causing the liquid to remain on the chassis 31 for too long and increasing the risk of equipment getting damp; nor is the water flow too fast due to an excessively large angle, causing the liquid to splash onto other equipment or areas, affecting the normal operation of the equipment and the cabin environment.

[0105] Reference Figure 8 and Figure 9 The inverter compartment 30 has a central crossbeam 35 at its bottom, which connects to the chassis 31. Along the height direction DH of the enclosure 10, at least a portion of the central crossbeam 35 is located above the chassis 31. The central crossbeam 35 is typically made of straight-line profiles such as square steel or angle steel. As mentioned above, the inclined arrangement of at least a portion of the chassis 31, due to the presence of the central crossbeam 35, divides the chassis 31 into two areas.

[0106] The intermediate crossbeam 35 extends horizontally along the width direction DW of the enclosure 10. One of its main functions is to provide lateral structural support for the bottom of the inverter compartment 30, enhancing the stability of the bottom structure. At the same time, the intermediate crossbeam 35 is connected to the chassis 31 to form a complete bottom structure, improving the structural strength of the inverter compartment 30.

[0107] The middle crossbeam 35 is provided with a second drainage hole 351 on the part above the chassis 31. The second drainage hole 351 connects the areas of the chassis 31 on both sides of the middle crossbeam 35 to prevent water accumulation on the side of the chassis 31 away from the drainage pipe 36. Preferably, the second drainage hole 351 is provided on the part of the middle crossbeam 35 that corresponds to the first plate 32.

[0108] In some embodiments, along the length direction DL of the housing 10, the intermediate crossbeam 35 is located at the center of the chassis 31. The center of the chassis 31 is provided with a structure for mounting the intermediate crossbeam 35, such as a mounting groove. The intermediate crossbeam 35 is mounted in the mounting groove by welding, connecting with fasteners (such as bolts, rivets, etc.).

[0109] In other embodiments, the two chassis 31 are respectively connected to both sides of the intermediate crossbeam 35. The bottom of the inverter compartment 30 has two relatively independent chassis 31 areas, located on the front and rear sides of the intermediate crossbeam 35 respectively. The intermediate crossbeam 35 serves to separate and connect the two chassis 31, dividing the entire bottom structure into front and rear parts. Each chassis 31 is firmly connected to the intermediate crossbeam 35 by welding or connecting parts (such as bolts, rivets, etc.), ensuring that the two chassis 31 and the intermediate crossbeam 35 form a whole, jointly bearing the weight of the equipment and external forces.

[0110] To facilitate drainage from the drainage tray, a drainage pipe 36 is provided on the side of the first plate 32 facing outwards from the container body 10. The drainage pipe 36 extends to the outer side of the container body 10, and a first drainage hole 34 is formed in the drainage pipe 36. Optionally, the drainage pipe 36 is located on the end plate of the container. The axial direction of the drainage pipe 36 is parallel to the length direction DL of the container body 10.

[0111] Understandably, the second drain hole 351 and the drain pipe 36 of the intermediate crossbeam 35 can be installed simultaneously, or one can be installed selectively as needed. According to the above scheme, the accumulated water in the inverter compartment 30 chassis 31 can be drained efficiently.

[0112] As described above, the top of the inverter compartment 30 is open. To reduce the impact of rain on the inverter compartment 30, a rain eaves 37 are provided above the inverter compartment 30. The rain eaves 37 are offset from the heat dissipation holes 39 of the energy storage converter 38 along the projection of the height direction DH of the enclosure 10, and the rain eaves 37 are positioned as close as possible to the heat dissipation holes 39 of the energy storage converter 38, thereby improving the rain protection effect of the inverter compartment 30 without affecting the heat dissipation of the energy storage converter. Optionally, the distance between the rain eaves 37 and the heat dissipation holes 39 is 0–10 mm. The distance can be, but is not limited to, 0, 2 mm, 4 mm, 6 mm, 8 mm, or 10 mm.

[0113] The rain gutter 37 is located on the side of the inverter compartment 30 closest to the transformer compartment 20. Understandably, the transformer compartment 20 is topped. Optionally, the rain gutter 37 and the top plate of the transformer compartment 20 are integrally formed. The rain gutter 37 and the top plate can cover the cables between the inverter compartment 30, the electrical compartment 40, and the transformer compartment 20.

[0114] To further enhance heat dissipation in the inverter compartment 30, a mesh grille 95 is provided on the side of the inverter compartment 30. Optionally, the mesh grille 95 is located on the side panel and / or end panel of the enclosure 10. The mesh grille 95 provides protection for the inverter compartment 30 while ensuring airflow. Optionally, the mesh grille 95 has a door structure and is equipped with a lock to prevent unauthorized personnel from touching the energy storage AC unit.

[0115] As mentioned above, the electrical compartment 40 is located below the inverter compartment 30. Understandably, the most direct way to connect the cables between the electrical compartment 40 and the inverter compartment 30 is to pass through the chassis 31 of the inverter compartment 30. However, after the chassis 31 of the inverter compartment 30 is opened, water may seep into the electrical compartment 40 through the cable holes, causing a short circuit in the high-voltage electrical equipment.

[0116] In this design, the cable between the electrical compartment 40 and the inverter compartment 30 is routed through the transformer compartment 20 to improve waterproofing.

[0117] Specifically, the transformer compartment 20 is adjacent to the inverter compartment 30 via a first partition structure 81, and adjacent to the electrical compartment 40 via a second partition structure 82. The cables between the inverter compartment 30 and the electrical compartment 40 pass through the first partition structure 81 into the transformer compartment 20, and then through the second partition structure 82 into the electrical compartment 40. The transformer compartment 20, inverter compartment 30, and electrical compartment 40 are adjacent in the width direction (DW), serving as cable transfer nodes. This avoids the need for openings in the chassis 31, and the cables no longer pass through the chassis 31 of the inverter compartment 30, but instead pass through the lateral partitions (first partition structure 81, second partition structure 82), completely preventing vertical water seepage. Optionally, the wiring sides of the inverter compartment 30 and electrical compartment 40 are both oriented towards the transformer compartment 20 for easier cable management. This solution, by changing the cable path from a direct vertical connection to bypassing the transformer compartment 20, improves the waterproof and safety performance of the energy storage container without increasing additional space requirements, while also facilitating maintenance.

[0118] Optionally, the first partition structure 81 and the second partition structure 82 can be either partitions or support frames. The partitions are planar plate structures used to create physical separation within the container 10 or compartment, and are fixed to the frame of the container 10 by bolts, clips, or welding. The support frames are composed of metal profiles (such as angle steel, square tubing, or aluminum profiles) connected by welding, riveting, or bolting. The following description uses the first partition structure 81 as the support frame and the second partition structure 82 as the partition.

[0119] The inverter compartment 30 and the transformer compartment 20 are arranged adjacent to each other via a first partition structure 81. To reduce the impact on heat dissipation of the inverter compartment 30, the first partition structure 81 adopts a support frame. Cables between the inverter compartment 30 and the transformer compartment 20 can be directly run through the support frame.

[0120] The electrical compartment 40 includes an AC combiner cabinet 21 and a control cabinet 22. Both the AC combiner cabinet 21 and the control cabinet 22 are adjacent to the transformer compartment 20 via a second partition structure 82. To ensure the relative independence of the electrical compartment 40, the second partition structure 82 uses a partition plate. The AC combiner cabinet 21 and the control cabinet 22 are arranged adjacent to each other along the length DL of the enclosure 10. The AC combiner cabinet 21 is used to collect the inverter output current and distribute it to the transformer or the power grid. The control cabinet 22 is used for energy management, fault protection, and communication.

[0121] The second partition structure 82 is provided with a first wiring hole 85, a second wiring hole 86, and a third wiring hole 87. The partitioned wiring hole design avoids heat dissipation problems or maintenance difficulties caused by cross-entanglement; at the same time, it can achieve physical isolation of high and low voltage cables, reducing the impact of electromagnetic interference on control signals.

[0122] Specifically, the first wiring hole 85 is correspondingly provided with the AC combiner cabinet 21, and is used to run the cable between the inverter compartment 30 and the electrical compartment 40. The second wiring hole 86 is correspondingly provided with the AC combiner cabinet 21, and is used to run the cable between the AC combiner cabinet 21 and the transformer compartment 20. The third wiring hole 87 is correspondingly provided with the control cabinet 22, and is used to run the cable between the control cabinet 22 and the transformer compartment 20.

[0123] Optionally, along the height direction DH of the enclosure 10, the first wiring hole 85 is higher than the second wiring hole 86, and the first wiring hole 85 is higher than the third wiring hole 87. The inverter compartment 30 is located above the electrical compartment 40, and the first cable connecting them passes through the first wiring hole 85. The first cable extends vertically or obliquely from top to bottom, allowing gravity to cause the cable to hang naturally. The transformer compartment 20 is located at the rear of the electrical compartment 40. The second cable connecting the AC combiner cabinets 21 of the electrical compartment 40 passes through the second wiring hole 86. The second cable extends from front to back, allowing for horizontal straight-line routing or natural extension from top to bottom. The third cable connecting the control cabinets 22 of the electrical compartment 40 passes through the third wiring hole 87. The third cable extends from front to back, allowing for horizontal straight-line routing or natural extension from top to bottom. The first, second, and third cables follow the compartment arrangement direction, reducing cable bend angles, lowering installation complexity, and allowing for quick location of cable connection points during maintenance without disassembling other compartment structures.

[0124] Optionally, the first wiring hole 85 is located above the second wiring hole 86.

[0125] To achieve good heat dissipation and convenient installation and maintenance of the electrical compartment 40, high-protection-level air outlet louvers 96 may optionally be installed on the side of the electrical compartment 40. Optionally, the air outlet louvers 96 may be located at the end of the enclosure 10. This design solves the heat dissipation problem of the electrical compartment 40, and the detachable louver structure allows for a side-push entry method for the entire electrical cabinet.

[0126] Optionally, a mesh grille 95 is provided on the side of the transformer compartment 20. Optionally, the mesh grille 95 is located on the side panel of the enclosure 10. The mesh grille 95 provides protection for the transformer compartment 20 while ensuring air circulation. Optionally, the mesh grille 95 has an opening door structure and is equipped with a lock to prevent unauthorized personnel from touching the transformer.

[0127]

Second Function Column 12

[0128] The second functional column 12 includes a DC compartment 50. Optionally, the DC compartment 50 contains multiple rows of battery cluster racks. Optionally, there are three rows of battery cluster racks. Each row of battery cluster racks arranges multiple PACK packs and a high-voltage box from top to bottom. Optionally, each row of battery cluster racks contains 6, 8, or 10 PACK packs. Every 3 to 5 PACKs form a cluster, i.e., one row contains two clusters. The high-voltage box at the bottom has a dual-system structure, responsible for the independent control and DC transmission of the two clusters above, with each cluster connected to its respective energy storage converter module. The entire DC compartment 50 contains six DC systems, and the capacity can be compatible with 2 to 2.5 MWh depending on the different cell specifications.

[0129] The second function column 12 is arranged adjacent to the first function column 11 along the length direction DL.

[0130] Reference Figure 3 and Figure 4 The DC compartment 50 is adjacent to the electrical compartment 40 via a third partition structure 83. Optionally, the third partition structure 83 may be a partition or a support frame. The following description assumes the third partition structure 83 is constructed as a partition.

[0131] The third partition structure 83 is equipped with a fourth cable routing hole 88, which is used to run cables between the electrical compartment 40 and the DC compartment 50. The fourth cable routing hole 88 is located near the bottom of the container 10. Placing the fourth cable routing hole 88 near the bottom of the container 10 allows cables to be laid along the bottom, improving the overall utilization of the container's internal space and making the layout of the entire energy storage system more compact and rational. At the same time, the cable routing near the bottom makes the cable layout more orderly and organized. During subsequent maintenance and management, maintenance personnel can more easily inspect, repair, and replace the cables.

[0132] Reference Figure 6The fourth partition structure 84 has a first stop 91 on the side facing the electrical compartment 40, and at least part of the first stop 91 is located above the fourth wiring hole 88.

[0133] Reference Figure 7 The fourth partition structure 84 has a second stop 92 on the side facing the DC compartment 50, and at least part of the second stop 92 is located above the fourth wiring hole 88.

[0134] The first stop 91 and the second stop 92 form a physical barrier above the fourth cable routing hole 88. When water flows down from above, such as due to water leakage from the top of the container, condensation dripping from the equipment above, or water splashing into the area when cleaning the container, the stop can directly block the water from falling, preventing water from directly entering the fourth cable routing hole 88. This protects the cables running through the cable routing hole and prevents electrical faults such as short circuits and insulation damage caused by water contact.

[0135] Optionally, the first stop 91 and / or the second stop 92 are made of square steel. Optionally, the first stop 91 and the second stop 92 are firmly fixed to the third partition structure 83 by welding, bolting or other means to ensure that they will not loosen or fall off during the operation of the energy storage container.

[0136] Reference Figure 3 , Figure 4 and Figure 9 The DC compartment 50 is adjacent to the inverter compartment 30 via a fourth partition structure 84. Optionally, the fourth partition structure 84 can be a partition or a support frame. The following description assumes the fourth partition structure 84 is constructed as a partition.

[0137] The fourth partition structure 84 is provided with a fifth wiring hole 89, which is used to run cables between the inverter compartment 30 and the DC compartment 50.

[0138] As mentioned above, the inverter compartment 30 is equipped with a chassis 31, and the fifth wiring hole 89 is higher than the chassis 31 of the inverter compartment 30. This prevents water accumulation on the chassis 31 from entering the DC compartment 50 through the wiring hole, protecting the battery packs and other equipment inside the DC compartment 50 from the effects of a humid environment. It also prevents cables from coming into contact with water, greatly reducing the probability of electrical faults such as cable insulation damage, short circuits, and leakage, thus ensuring the safe operation of the electrical system inside the energy storage container.

[0139] Optionally, the distance between the fifth cable routing hole 89 and the chassis 31 is 1800mm-2200mm. When the cable is passed through the fifth cable routing hole 89 within this distance range, the distance between the cable and the chassis 31 is appropriate, and the cable will not come into contact with water due to the distance being too small, nor will the cable routing be affected by the distance being too large.

[0140] Reference Figure 10A third baffle 93 is provided on the side of the fifth wiring hole 89 facing the inverter compartment 30, with at least a portion of the third baffle 93 located above the fifth wiring hole 89. The third baffle 93 forms a physical barrier above the fifth wiring hole 89, preventing water from directly entering the fifth wiring hole 89. Optionally, the third baffle 93 is constructed as a surrounding panel around the fifth wiring hole 89. Optionally, the third baffle 93 is securely fixed to the fourth partition structure 84 by welding, bolting, or other methods to ensure that it will not loosen or fall off during the operation of the energy storage container.

[0141]

Third Function Column 13

[0142] Reference Figures 1 to 3 , Figure 14 The third functional column 13 includes a fire control compartment 60 and a liquid cooling unit compartment 70. The fire control compartment 60 is located on the first side of the width direction DW of the enclosure 10, and the liquid cooling unit compartment 70 is located on the second side of the width direction DW of the enclosure 10.

[0143] The third function column 13 and the second function column 12 are arranged adjacent to each other along the length direction DL, and the third function column 13 and the first function column 11 are located on both sides of the second function column 12 along the length direction DL.

[0144] The third functional column 13 is arranged adjacent to the second functional column 12, meaning that both the fire control main compartment 60 and the liquid-cooled unit compartment 70 are adjacent to the DC compartment 50. This arrangement optimizes the transmission path between the heat dissipation system, the fire protection system, and the battery, improving the heat dissipation efficiency of the heat dissipation system and ensuring accurate and timely protection by the fire protection system.

[0145] Optionally, the cooling system may use an outdoor liquid-cooled unit.

[0146] Optionally, the liquid-cooled unit compartment 70 adopts an open installation design. The liquid-cooled unit compartment 70 is equipped with mesh grilles 95 facing outwards (i.e., the right and rear sides) to prevent unauthorized disassembly by non-professionals, while ensuring the heat exchange function between the unit and the outside environment.

[0147] Optionally, the fire control compartment 60 houses the main control box, distribution box, and extinguishing medium tank of the fire protection system. The fire control compartment 60 has an access door at the rear of the container, allowing for operation during the initial installation, commissioning, and maintenance phases, with ample space available.

[0148] In a preferred embodiment, apart from the inverter compartment 30, the other functional compartments are relatively independent. All cable routing between compartments is waterproof, and critical isolation areas utilize sealing elements 94 or waterproof structures to ensure waterproof and fireproof isolation between compartments.

[0149] In this design, at least one of the first cable routing hole 85, the second cable routing hole 86, the third cable routing hole 87, the fourth cable routing hole 88, and the fifth cable routing hole 89 is provided with a sealing element 94. Exemplarily, the sealing element 94 is a porous sealing block, and the material of the porous sealing block can be, but is not limited to, elastomers such as rubber, silicone, and plastic. The porous sealing block can be connected to multiple cables, and each cable routing hole is independently sealed, improving the overall waterproof level.

[0150] This solution integrates an independent energy unit within a standard 20-foot container, featuring a built-in isolation transformer to ensure direct grid connection with industrial and commercial loads or low-voltage 380V / 400V mains power. Utilizing a standard 20-foot high cube container with a weight limit of 30 tons, this solution breaks away from conventional ultra-wide designs, balancing domestic transportation and overseas export requirements. Furthermore, this equipment significantly increases the capacity density of industrial and commercial energy storage containers from 1.5MWh to 2.5MWh. This increased energy density also reduces the on-site construction area.

[0151] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0152] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. An energy storage container, characterized in that, include: Box; An inverter compartment is located inside the enclosure. The bottom of the inverter compartment has a chassis, and the chassis is provided with a first drainage hole. A DC compartment is located inside the enclosure. The DC compartment and the inverter compartment are arranged along the length of the enclosure. A wiring hole is provided between the DC compartment and the inverter compartment. The wiring hole is higher than the chassis along the height of the enclosure.

2. The energy storage container according to claim 1, characterized in that, The enclosure includes a first side and a second side that are opposite each other along its width direction; At least a portion of the chassis is configured such that the portion located on the second side is higher than the portion located on the first side, and the first drain hole is located on the portion on the first side.

3. The energy storage container according to claim 2, characterized in that, The chassis includes: The first plate is located on the first side and is constructed as a horizontally mounted flat plate. The second plate is located on the second side, and the portion of the second plate that is farther away from the first plate is higher than the portion that is closer to the first plate.

4. The energy storage container according to claim 3, characterized in that, The second plate is constructed as an inclined flat plate, with an inclination angle of 1° to 5° between the second plate and the horizontal plane; and / or A drain pipe is provided on the side of the first plate facing the outside of the box body, the drain pipe extends to the outside of the box body, and the first drain hole is formed in the drain pipe.

5. The energy storage container according to any one of claims 1 to 4, characterized in that, The inverter compartment has a central crossbeam at the bottom, which extends along the width of the housing. At least a portion of the central crossbeam is located above the chassis, and a second drainage hole is provided on the portion of the central crossbeam located above the chassis.

6. The energy storage container according to claim 1, characterized in that, The inverter compartment is equipped with a rain cover.

7. The energy storage container according to claim 6, characterized in that, The inverter compartment is used to install an energy storage AC unit, which is provided with heat dissipation holes. Projected along the height direction of the housing, the rain eaves are offset from the heat dissipation holes, and the distance between the rain eaves and the heat dissipation holes is 0-10mm.

8. The energy storage container according to claim 1, characterized in that, The inverter compartment is equipped with a mesh grid on its side.

9. The energy storage container according to any one of claims 1 to 4, 6 to 8, characterized in that, The energy storage container is provided with a first functional column, a second functional column, and a third functional column arranged sequentially along the length of the container body; wherein... The first functional column includes a transformer compartment, an electrical compartment, and an inverter compartment. The transformer compartment is located on the second side of the width direction of the enclosure, and the electrical compartment and the inverter compartment are located on the first side of the width direction of the enclosure. The electrical compartment is located below the inverter compartment. The second functional column is the DC compartment, which is equipped with a battery cluster rack; The first functional column includes a fire control compartment and a liquid cooling unit compartment. The fire control compartment is located on the first side of the width direction of the enclosure, and the liquid cooling unit compartment is located on the second side of the width direction of the enclosure.

10. The energy storage container according to claim 9, characterized in that, The rain eaves of the inverter compartment are located close to the transformer compartment and are connected to the top plate of the transformer compartment.

Images