Energy storage container

Abstract

The embodiment of the utility model provides an energy storage container, which relates to the technical field of energy storage equipment and comprises at least two container bodies, at least two battery units and at least one confluence cabinet, wherein the container body is provided with an opening, a mounting cavity communicated with the opening is formed in the container body, the battery units are correspondingly arranged in the mounting cavity, the confluence cabinet is connected to the container body and located outside the container body, and at least two battery units are electrically connected with the same confluence cabinet. In consideration of the space and layout of the mounting cavity in the container body, the confluence cabinet is fixedly arranged outside the container body, and a plurality of battery units in the mounting cavity share one confluence cabinet, so that more arrangement space is reserved for the mounting cavity, the layout is reasonable, the space utilization rate is high, and on the basis of the same energy specification, the space utilization rate is high; the size of the container body is reduced, so that the occupied area of the energy storage container is reduced.

Description

Technical Field

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

[0002] Energy storage containers are modular devices used to store and manage electrical energy, and are typically used in applications such as renewable energy systems, grid regulation, and emergency backup power.

[0003] In related technologies, energy storage containers include at least two sub-containers, a battery pack, and a power distribution switch. Each sub-container is equipped with a battery pack and a power distribution switch, which is electrically connected to the battery pack and can manage and control the entire battery pack.

[0004] However, the presence of a power distribution switchboard inside each sub-container reduces the space available for battery pack placement, resulting in low space utilization and an increase in the size of the sub-container, thus increasing the area occupied by the energy storage container. Utility Model Content

[0005] This application provides an energy storage container to overcome the problems of existing energy storage containers where the power distribution switch is located inside the container, which squeezes the space for battery packs, resulting in low space utilization, increased container size, increased cost, and increased footprint and transportation difficulty.

[0006] This application provides an energy storage container, comprising: at least two container bodies, each container body having an opening and an installation cavity communicating with the opening; at least two battery units, each battery unit being correspondingly disposed within the installation cavity; and at least one combiner cabinet connected to the container body and located outside the container body, wherein at least two of the battery units are electrically connected to the same combiner cabinet.

[0007] In one possible implementation, the manifold is connected to the outer wall of the container body.

[0008] In one possible implementation, at least two of the container bodies are laterally connected, and adjacent container bodies are interlocked with each other. The junction box is connected to the outermost container body, and the wiring harness of the battery unit passes through the side wall of the container body and is electrically connected to the junction box.

[0009] In one possible implementation, the system further includes multiple connecting components, each including a fixing member and a limiting member, which are respectively disposed at the four corners of the top and bottom of the container body. The connecting components are configured such that after the fixing member is inserted into the limiting member, the limiting member can limit the fixing member to engage two adjacent container bodies.

[0010] In one possible implementation, an air conditioning unit is also included, which includes an air conditioning unit and a cooling fan. The cooling fan is connected to the air conditioning unit, which is located inside the mounting cavity, and the cooling fan is located on the outer side wall of the top of the container body.

[0011] In one possible implementation, the battery unit includes at least one battery cluster and at least one battery cluster frame, the battery cluster frame array being distributed within the mounting cavity, and the battery cluster being mounted on the battery cluster frame.

[0012] In one possible implementation, a control box is also included, which is mounted on the battery cluster rack and located on top of the battery cluster rack. The control box includes an energy storage AC unit and a power distribution box. The energy storage AC unit is connected to the power distribution box via a wiring harness, and the power distribution box is connected to the battery cluster via a wiring harness. The energy storage AC unit is electrically connected to the combiner cabinet and is used to switch current types.

[0013] In one possible implementation, a liquid cooling unit is also included, which is disposed on the top of the container body and corresponds to the position of the control box. The liquid cooling unit is used to cool the control box.

[0014] In one possible implementation, the top of the container body is provided with multiple explosion relief plates, which correspond to the placement space of the battery unit.

[0015] In one possible implementation, the container also includes a cabinet door, which is hinged to the side wall of the container body to open or close the opening.

[0016] The energy storage container provided in this application takes into account the space and layout of the installation cavity inside the container body. By fixing the combiner cabinet to the outside of the container body, and allowing multiple battery units inside the installation cavity to share a combiner cabinet, more arrangement space is left for the installation cavity. This allows the battery units to be fixed individually inside the installation cavity of the container body. The layout is reasonable and the space utilization rate is high. Based on the same energy specifications, the size of the container body can be reduced, thereby reducing the area occupied by the energy storage container. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 A structural schematic diagram of the energy storage container provided in this application (omitting at least one container body);

[0019] Figure 2 A schematic diagram of the internal structure of the energy storage container (omitting at least one container body) provided in this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100-Container body; 110-Top panel; 120-Side panel; 200-Battery unit; 210-Battery cluster; 220-Battery cluster rack; 230-Control box; 300-Combiner cabinet; 400-Connecting assembly; 410-Fixed component; 420-Limiting component; 500-Liquid cooling unit; 600-Air conditioning unit; 700-Explosion relief plate; 800-Container door.

[0022] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0024] The terms "first," "second," "third," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0025] Secondly, it should be noted that in the description of this application, the terms "inner", "outer", "first direction", "second direction", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0026] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] As shown in the background art, in related technologies, energy storage containers include at least two sub-containers, a battery pack, and a power distribution combiner cabinet. Each sub-container is equipped with a battery pack and a power distribution combiner cabinet, which is electrically connected to the battery pack and can manage and control the battery pack as a whole.

[0028] However, the presence of a power distribution switchboard inside each sub-container reduces the space available for battery pack placement, resulting in low space utilization and an increase in the size of the sub-container, thus increasing the area occupied by the energy storage container.

[0029] To address the aforementioned technical problems, this application provides an energy storage container, comprising: at least two container bodies, at least two battery units, and at least one combiner cabinet; wherein, the container body has an opening, and the container body has an installation cavity communicating with the opening, the battery units are correspondingly disposed within the installation cavity, the combiner cabinet is connected to the container body and located outside the container body, and at least two battery units are electrically connected to the same combiner cabinet. Considering the space and layout of the installation cavity within the container body, by fixing the combiner cabinet to the outside of the container body, and allowing multiple battery units within the installation cavity to share one combiner cabinet, more space is reserved for the installation cavity, enabling individual fixing of the battery units within the installation cavity of the container body. This results in a reasonable layout, high space utilization, and, for the same energy specifications, a reduction in the size of the container body, thereby reducing the area occupied by the energy storage container.

[0030] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0031] Combination Figure 1 and Figure 2 As shown, this application provides an energy storage container, including: at least two container bodies 100, each container body 100 having an opening and an installation cavity communicating with the opening.

[0032] At least two battery cells 200 are disposed in the mounting cavity.

[0033] At least one combiner cabinet 300 is connected to the container body 100 and located outside the container body 100, and at least two battery units 200 are electrically connected to the same combiner cabinet 300.

[0034] Understandably, most current shipping containers are 20-foot units, with each sub-container housing a power distribution switch, which squeezes the space for battery packs, resulting in low space utilization and increased sub-container size, thus increasing the footprint of the energy storage container. Alternatively, when the system requires higher energy, the energy storage container needs to be enlarged to accommodate more battery packs, further increasing space requirements. Therefore, the relevant equipment inside the container body 100 can be rearranged, with the switch 300 located outside the container body 100. This allows for the electrical connection of battery units 200 from at least two container bodies 100 to the same switch 300, reducing the number of switch 300 units required while still enabling management and control of the battery units 200.

[0035] Specifically, in combination Figure 1 and Figure 2 As shown, considering the space and layout of the installation cavity within the container body 100, by fixing the combiner cabinet 300 to the outside of the container body 100, and allowing multiple battery units 200 within the installation cavity to share a single combiner cabinet 300, more space is allocated to the installation cavity. This allows each battery unit 200 to be individually fixed within the installation cavity of the container body 100, resulting in a rational layout, high space utilization, and a reduction in the size of the container body 100 for the same energy specifications, thereby reducing the area occupied by the energy storage container. Furthermore, without changing the size of the container body 100 and while meeting the requirements for sea freight weight, more battery units 200 can be placed within the container body 100, increasing the energy storage capacity of the energy storage container.

[0036] In one possible implementation, reference is made to Figure 1 and Figure 2As shown, the manifold 300 can be connected to the outer side wall of the container body 100. That is, the manifold 300 is externally mounted on the outer side wall of the container body 100 to avoid obstructing the air conditioning unit 600 on the top (which will be described below), and the manifold 300 can be bolted to the outer side wall of the container body 100 to prevent displacement during transportation.

[0037] Furthermore, in combination Figure 1 As shown, the container body 100 may include a container frame, a top plate 110, a bottom plate, and several side plates 120. The top plate 110 is located at the top of the container frame, the bottom plate is located at the bottom of the container frame, and the side plates 120 are located on the sides of the container frame, connecting the top plate 110 and the bottom plate. The top plate 110, side plates 120, bottom plate, and container frame together form an installation cavity. The manifold 300 is bolted to the side plate 120, and the container frame can be supported by steel to ensure the overall strength of the container body 100.

[0038] Furthermore, such as Figure 1 As shown, at least two container bodies 100 are horizontally connected, and adjacent container bodies 100 are interlocked with each other. The combiner cabinet 300 is connected to the outermost container body 100, and the wiring harness of the battery unit 200 passes through the side wall of the container body 100 and is electrically connected to the combiner cabinet 300.

[0039] Understandably, by modularizing the container body 100 and horizontally connecting at least two container bodies 100, it is possible to adjust for different transport specifications to meet various transport conditions (sea, air, and land transport). For example, it can form 10 feet + 10 feet = 20 feet, 20 feet + 20 feet = 40 feet, 10 feet + 30 feet = 40 feet, etc.

[0040] Furthermore, at least two container bodies 100 can be interlocked, and the combiner cabinet 300 can be connected to the outermost container body 100. The wiring harness of the battery unit 200 in each container body 100 can pass through the side wall of its own or the adjacent container body 100, thereby being electrically connected to the combiner cabinet 300. This allows one combiner cabinet 300 to control at least two battery units 200, reducing the number of combiner cabinets 300 and effectively reducing the overall space occupied by the energy storage container.

[0041] Furthermore, referring to Figure 1As shown, it also includes multiple connecting components 400. The connecting components include fasteners 410 and limiting components 420. The fasteners 410 and limiting components 420 are respectively disposed at the four corners of the top and bottom of the container body 100. The connecting components 400 are configured such that after the fasteners 410 are inserted into the limiting components 420, the limiting components 420 can limit the fasteners 410 to lock two adjacent container bodies 100 together.

[0042] Understandably, referring to Figure 1 As shown, fasteners 410 can be provided at the four corners of the top and bottom of one of the container bodies 100, and limiting members 420 can be provided at the four corners of the top and bottom of another adjacent container body 100. Alternatively, fasteners 410 and limiting members 420 can be provided at the four corners of the top and bottom of two adjacent container bodies 100, so that the positions of the fasteners 410 and limiting members 420 can correspond, thereby facilitating the locking and fixing of the two adjacent container bodies 100.

[0043] Both the fixing member 410 and the limiting member 420 have slots. A fixing rod is installed in the fixing member 410, and a positioning ring is installed in the limiting member 420. The fixing rod can pass through the slot and extend into the positioning ring, thereby securing the two container bodies 100 together. Furthermore, the diameter of the positioning ring is no larger than the diameter of the slot, increasing the stability of the fixing rod and preventing it from wobbling after insertion, thus strengthening the connection between the container bodies 100.

[0044] In one possible implementation, an air conditioning unit 600 is also included. The air conditioning unit 600 includes an air conditioning main unit and a cooling fan. The cooling fan is connected to the air conditioning main unit. The air conditioning main unit is located inside the installation cavity, and the cooling fan is located on the outer side wall of the top of the container body 100.

[0045] Understandably, energy storage containers require large-scale transportation during maritime transport, with small gaps between adjacent container bodies 100, or even being joined together. If the cooling fans are placed on the side walls of the container bodies 100, the output hot air will blow onto the side walls of adjacent container bodies 100, causing hot air recirculation, poor heat dissipation, and a tendency to form a heat island effect. Therefore, the cooling fans can be placed on the top of the container bodies 100. The air conditioning unit can then blow air throughout the installation cavity for heat dissipation, and the expelled hot air can be vertically discharged through the cooling fans, avoiding obstruction of air dispersion by adjacent container bodies 100, thus preventing the heat island effect and enhancing the heat dissipation effect.

[0046] In one possible implementation, such as Figure 2As shown, the battery unit 200 includes at least one battery cluster 210 and at least one battery cluster frame 220. The battery cluster frames 220 are arrayed in the mounting cavity, and the battery clusters 210 are mounted on the battery cluster frames 220.

[0047] like Figure 2 As shown, at least one battery cluster rack 220 can be placed inside the container body 100 along the width or length direction. Each battery cluster 210 can be placed on the same battery cluster rack 220 or on different battery cluster racks 220, which facilitates the electrical connection of adjacent battery clusters 210 and the wiring of other equipment.

[0048] Furthermore, in combination Figure 2 As shown, it also includes a control box 230, which is mounted on the battery cluster rack 220 and located on top of the battery cluster rack 220. The control box 230 includes an energy storage AC converter and a distribution box. The energy storage AC converter is connected to the distribution box via a wiring harness, and the distribution box is connected to the battery cluster 210 via a wiring harness. The energy storage AC converter is electrically connected to the combiner cabinet 300 and is used to convert the current type. It can be understood that at least one battery cluster 210 is provided with a corresponding control box 230. During charging and discharging, it can perform AC / DC conversion and regulate the voltage for transmission to the combiner cabinet 300, enabling centralized management and monitoring of the battery units 200, improving energy utilization efficiency, and ensuring sufficient power supply to various loads or devices.

[0049] In one possible implementation, such as Figure 2 As shown, it also includes a liquid cooling unit 500, which is located on the top of the container body 100. The liquid cooling unit 500 corresponds to the position of the control box 230 and is used to cool the control box 230.

[0050] Specifically, such as Figure 2 As shown, the liquid cooling unit 500 can be installed within the mounting cavity and positioned opposite the control box 230. The liquid cooling unit 500 may include a heat exchanger and an air inlet fan. The air inlet of the air inlet fan can face the control box 230, and the air outlet of the air inlet fan is connected to the cold-side inlet of the heat exchanger to exchange heat generated by the control box 230 and lower its temperature. It is understood that the control box 230 generates more heat during operation; therefore, the liquid cooling unit 500 can be positioned opposite the control box 230 for timely heat exchange and cooling. The liquid cooling unit 500 may also include a cold fluid conduit, which can be connected to the hot-side inlet and outlet of the heat exchanger and extends to the battery cluster rack 220. Refrigerant circulates within the battery cluster rack 220 to cool the battery clusters 210.

[0051] In one possible implementation, such as Figure 1 As shown, the top of the container body 100 is provided with multiple explosion relief plates 700, and the explosion relief plates 700 correspond to the placement space of the battery unit 200.

[0052] Specifically, in combination Figure 1 As shown, multiple explosion relief plates 700 are provided on the top plate 110 of the container body 100, which are used to release high-temperature and high-heat gases to the outside of the container body 100 when thermal runaway or combustion occurs in the battery unit 200 or other equipment inside the installation cavity.

[0053] Understandably, when the battery unit 200 or other equipment experiences thermal runaway or explosion, a large amount of high-temperature, high-heat gases will be generated. If these gases are not discharged in time, it will cause serious consequences such as deformation of the outer shell of the container body 100 and damage to internal equipment components. Therefore, multiple explosion relief plates 700 can be provided on the top plate 110 of the container body 100, and these explosion relief plates 700 correspond to the placement space of the battery unit 200 to facilitate the timely discharge of high-temperature, high-heat gases.

[0054] Furthermore, in combination Figure 1 As shown, the explosion relief plate 700 and the top plate 110 are openable and closable. That is, when an accident occurs, the pressure inside the container body 100 can force open the explosion relief plate 700 and release the high-temperature gas inside the container body 100, thereby protecting the container body 100 and its internal components. When the container body 100 is working normally without faults, the explosion relief plate 700 and the top plate 110 are in a sealed state to ensure the airtightness of the container body 100.

[0055] In one possible implementation, reference is made to Figure 1 As shown, it also includes a container door 800, which is hinged to the side wall of the container body 100 to open or close the opening.

[0056] Specifically, such as Figure 1 As shown, the two sides of the container door 800 are hinged to the side panels 120 of the container body 100, so that the container door 800 can rotate relative to the container body 100, so that the opening can be opened or closed.

[0057] Of course, in other embodiments, the two sides of the container door 800 can also be hinged to the top plate 110 and bottom plate of the container body 100, or the container door 800 can also be set as an electric door, or the side wall of the container body 100 is provided with a slide for the container door 800 to slide, and the container door 800 slides along the extension direction of the slide. The connection method between the container door 800 and the container body 100 is not specifically limited, as long as the opening can be opened or closed.

[0058] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations may be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An energy storage container, characterized by, The application relates to a container battery pack, which comprises: at least two container bodies (100) having openings, and installation cavities in the container bodies (100) communicating with the openings; at least two battery units (200) arranged in the installation cavities correspondingly; at least one busbar cabinet (300) connected to the container bodies (100) and located outside the container bodies (100), and the at least two battery units (200) are electrically connected to the same busbar cabinet (300).

2. The energy storage container of claim 1, wherein, The busbar cabinet (300) is connected to the outer wall of the container body (100).

3. The energy storage container of claim 2, wherein, The at least two container bodies (100) are connected transversely, and adjacent two container bodies (100) are clamped to each other, the busbar cabinet (300) is connected to the outermost container body (100), and the wire harness of the battery unit (200) penetrates the side wall of the container body (100) and is electrically connected to the busbar cabinet (300).

4. The energy storage container of claim 3, wherein, The application further comprises a plurality of connecting assemblies (400), which comprise fixing members (410) and limiting members (420), the fixing members (410) and the limiting members (420) are arranged at the four corners of the top and bottom of the container body (100) respectively, the connecting assembly (400) is configured in such a way that the fixing member (410) is inserted into the limiting member (420), the limiting member (420) can limit the fixing member (410) to clamp adjacent two container bodies (100).

5. The energy storage container of any of claims 1-4, wherein, The application further comprises an air conditioning unit (600), which comprises an air conditioner main machine and a cooling fan, the cooling fan is connected to the air conditioner main machine, the air conditioner main machine is arranged in the installation cavity, and the cooling fan is arranged on the outer side wall of the top of the container body (100).

6. The energy storage container of any of claims 1-4, wherein, The battery unit (200) comprises at least one battery cluster (210) and at least one battery cluster rack (220), the battery cluster racks (220) are arranged in the installation cavity, and the battery cluster (210) is arranged on the battery cluster rack (220).

7. The energy storage container of claim 6, wherein, The application further comprises a control box (230) arranged on the battery cluster rack (220) and located on the top of the battery cluster rack (220), the control box (230) comprises an energy storage inverter and a power distribution box, the energy storage inverter and the power distribution box are connected through a wire harness, the power distribution box and the battery cluster (210) are connected through a wire harness, the energy storage inverter is electrically connected to the busbar cabinet (300), and the energy storage inverter is used for converting the current type.

8. The energy storage container of claim 7, wherein, The application further comprises a liquid cooling unit (500) arranged on the top of the container body (100), the liquid cooling unit (500) corresponds to the position of the control box (230), and the liquid cooling unit (500) is used for cooling the control box (230).

9. The energy storage container of any of claims 1-4, wherein, A plurality of explosion venting plates (700) are provided on the top of the container body (100) and correspond to the placement space of the battery unit (200).

10. The energy storage container of any of claims 1-4, wherein, A cabinet door (800) is also included, which is hinged to the side wall of the container body (100) to open or close the opening.

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