Container energy storage system

Abstract

The utility model discloses a container energy storage system, which comprises a box body, a battery rack, a liquid cooling pipeline, a high-voltage box and a plurality of battery boxes, the battery rack is arranged in the box body, the battery rack is provided with a mounting position and a plurality of battery positions positioned above the mounting position, a wiring space is arranged between the battery rack and the bottom wall of the box body, and the liquid cooling pipeline is arranged in the wiring space. A wire passing hole is formed in a position, close to the front side of the battery rack, of the bottom of the mounting position; the liquid cooling pipeline is arranged on the front side of the battery rack; and each battery box is correspondingly mounted at one battery position. The high-voltage box is mounted at the mounting position and is spaced from the front side surface of the battery rack, and at least part of the wire passing hole is positioned at the front side of the high-voltage box. According to the technical scheme, the interference between the cable of the high-voltage box and the liquid cooling pipeline can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a container energy storage system. Background Technology

[0002] Energy storage systems typically include cooling systems to lower the temperature of the battery packs, ensuring the system operates within a safe temperature range. Containerized energy storage systems usually employ liquid cooling systems, using pipes installed within the container to cool the battery packs. Currently, the liquid cooling pipes are generally located at the front of the battery rack, while the high-voltage box is typically situated at the bottom. In practice, due to limited space between the liquid cooling pipes and the battery rack, the connecting cables of the high-voltage box can easily interfere with the liquid cooling pipes during installation, making installation difficult. Utility Model Content

[0003] The main purpose of this invention is to propose a container energy storage system that avoids interference between the high-voltage box's cables and liquid cooling pipelines.

[0004] To achieve the above objectives, the containerized energy storage system proposed in this utility model includes:

[0005] Box;

[0006] A battery rack is disposed inside the housing. The battery rack has a mounting position and multiple battery positions located above the mounting position. There is a wiring space between the battery rack and the bottom wall of the housing. A wiring hole is provided at the bottom of the mounting position and near the front of the battery rack.

[0007] Liquid cooling piping is located on the front side of the battery rack;

[0008] Multiple battery boxes, each battery box being installed in one of the battery slots; and

[0009] A high-voltage box is installed at the mounting position and spaced from the front side of the battery rack, with the wire hole at least partially located on the front side of the high-voltage box.

[0010] Optionally, the battery rack includes multiple frames, each frame having the mounting position and multiple battery positions, the multiple battery positions being distributed sequentially upwards from the mounting position.

[0011] Optionally, the box body has multiple frames spaced apart along its length, and two rows of frames spaced apart along its width, with the front sides of the two frames facing away from each other; the box body is provided with a door on the front side corresponding to the frames.

[0012] Optionally, the container energy storage system further includes insulating components, with multiple insulating components provided between any two adjacent frames spaced apart along the length of the container, and both ends of the insulating components being fixed to the corresponding frames.

[0013] Optionally, the liquid cooling pipeline includes a main pipeline and branch pipelines connecting the main pipeline. The main pipeline is located below the front side of the battery rack, and the branch pipelines extend to the battery position.

[0014] Optionally, the liquid cooling pipeline further includes a connector assembly, which is at least partially located outside the housing and is used to connect an external liquid cooling module.

[0015] Optionally, the bottom wall of the enclosure has multiple support beams, all of which extend along the length of the enclosure and are spaced apart in the width direction of the enclosure. The battery is mounted on the support beams, and the wiring holes are located between two adjacent support beams. The wiring space is at least partially located between two adjacent support beams.

[0016] Optionally, the container energy storage system further includes a plurality of first insulating elements disposed on the bottom wall of the container body, with the tops of the plurality of first insulating elements abutting against the bottom of the battery rack to support the battery rack and to space the bottom of the battery rack from the bottom wall of the container body.

[0017] Optionally, the periphery of the first insulating member has an anti-creep structure.

[0018] Optionally, the containerized energy storage system further includes a plurality of second insulating elements, which are spaced apart and abut against the top of the battery rack and the top wall to space the top of the battery rack from the top wall.

[0019] Optionally, the containerized energy storage system further includes a plurality of third insulating elements connected between the battery rack and the sidewall.

[0020] This utility model's technical solution provides a wiring space between the battery rack and the bottom wall of the container, and a wiring hole is provided at the bottom of the mounting position and near the front of the battery rack. When the high-voltage box is installed in the mounting position, the front side of the high-voltage box and the battery rack are spaced apart, and the wiring hole is at least partially located on the front side of the high-voltage box. This allows the high-voltage box's cables to extend into the wiring space through the wiring hole, thereby avoiding interference between the high-voltage box's cables and the liquid cooling pipes located on the front side of the battery rack. This facilitates the arrangement of cables and liquid cooling pipes, and eliminates the need for a space between the liquid cooling pipes and the battery rack for cables to pass through. This improves the structural compactness of the containerized energy storage system and is beneficial for increasing the capacity of the containerized energy storage system. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the container energy storage system of this utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure after the cabinet door has been disassembled;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 for Figure 2 Cross-sectional view of a containerized energy storage system;

[0026] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0027] Figure 6 for Figure 2 Enlarged view of point C in the middle;

[0028] Figure 7 for Figure 3 A schematic diagram of the structure of the first insulating component.

[0029] Explanation of icon numbers:

[0030] 10. Enclosure; 11. Top wall; 12. Bottom wall; 13. Enclosure door; 14. Support beam; 15. Cable routing space; 20. Battery rack; 21. Frame; 211. Mounting position; 212. Battery position; 213. Cable routing hole; 30. Liquid cooling piping; 31. Main pipe; 32. Branch pipes; 33. Connector assembly; 41. High-voltage box; 42. Battery box; 43. Cable; 51. Insulating components; 52. First insulating component; 521. Insulating body; 522. Side; 523. Notch; 524. Insulating partition; 53. Second insulating component; 62. Fire protection piping;

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] This utility model proposes a container energy storage system.

[0036] In the embodiments of this utility model, such as Figures 1 to 7 As shown, the containerized energy storage system includes a container body 10, a battery rack 20, liquid cooling pipes 30, a high-voltage box 41, and multiple battery boxes 42. The battery rack 20 is located inside the container body 10 and has a mounting position 211 and multiple battery positions 212 located above the mounting position 211. Each battery box 42 is installed in a corresponding battery position 212. The liquid cooling pipes 30 are located on the front side of the battery rack 20. There is a wiring space 15 between the battery rack 20 and the bottom wall 12 of the container body 10. A wiring hole 213 is provided at the bottom of the mounting position 211 and near the front side of the battery rack 20. The high-voltage box 41 is installed in the mounting position 211 and spaced apart from the front side of the battery rack 20. The wiring hole 213 is at least partially located on the front side of the high-voltage box 41.

[0037] Specifically, the enclosure 10 has a door 13, which is positioned on the front side of the battery rack 20 (the front side of the battery rack 20 is the side of the battery rack 20 facing the door 13). The liquid cooling pipe 30 is located between the battery rack 20 and the door 13, while the wiring space 15 is located on the side of the liquid cooling pipe 30 away from the door 13. When the high-voltage box 41 is installed in the mounting position 211, the front side of the high-voltage box 41 is spaced apart from the front side of the battery rack 20. The wiring hole 213 is at least partially located between the front side of the high-voltage box 41 and the front side of the battery rack 20. The front side of the high-voltage box 41 has a cable 43 connector. The cable 43 connected to the cable 43 connector extends from the wiring hole 213 into the wiring space 15, thereby preventing interference between the cable 43 of the high-voltage box 41 and the liquid cooling pipe 30.

[0038] This utility model provides a wiring space 15 between the battery rack 20 and the bottom wall 12 of the housing 10, and a wire-passing hole 213 at the bottom of the mounting position 211 and near the front of the battery rack 20. When the high-voltage box 41 is installed in the mounting position 211, the high-voltage box 41 is spaced apart from the front side of the battery rack 20, and the wire-passing hole 213 is at least partially located on the front side of the high-voltage box 41. This allows the cable 43 of the high-voltage box 41 to extend into the wiring space 15 through the wire-passing hole 213, thereby avoiding interference between the cable 43 of the high-voltage box 41 and the liquid cooling pipe 30 located on the front side of the battery rack 20. This facilitates the arrangement of the cable 43 and the liquid cooling pipe 30, and eliminates the need to provide a space between the liquid cooling pipe 30 and the battery rack 20 for the cable 43 to pass through. This improves the structural compactness of the container energy storage system and is beneficial to increasing the capacity of the container energy storage system.

[0039] In some embodiments, the battery rack 20 includes a plurality of racks 21, each rack 21 having a mounting position 211 and a plurality of battery positions 212, the plurality of battery positions 212 being distributed sequentially from the mounting position 211 upwards, that is, during installation, the plurality of racks 21 can be installed one by one, thus making each rack 21 smaller in size, which is convenient for handling and assembly.

[0040] In some embodiments, the container body 10 has multiple frames 21 spaced apart along its length and two rows of frames 21 spaced apart along its width, with the front sides of the two frames 21 facing away from each other; the container body 10 is provided with a door 13 on the front side of each corresponding frame 21. This makes full use of the internal space of the container and facilitates assembly, inspection and maintenance.

[0041] In some embodiments, the containerized energy storage system further includes insulating components 51. Multiple insulating components 51 are provided between any two adjacent frames 21 spaced apart along the length of the container 10. The two ends of each insulating component 51 are fixed to the corresponding frame 21. During installation, the insulating components 51 connect adjacent frames 21, achieving insulation isolation between adjacent frames 21 while ensuring stable installation of each frame 21.

[0042] In some embodiments, the liquid cooling pipeline 30 includes a main pipeline 31 and branch pipelines 32 connecting the main pipeline 31. The main pipeline 31 is located below the front side of the battery rack 20, and the branch pipelines 32 extend to the battery compartments 212. Specifically, each rack 21 has a branch pipeline 32 on its front side, and the branch pipelines 32 are provided for multiple battery boxes 42 of that rack 21. The main pipeline 31 includes a main liquid inlet pipe and a main liquid return pipe, and the branch pipelines 32 include a liquid inlet branch pipe connected to the main liquid inlet pipe and a liquid return branch pipe connected to the main liquid return pipe.

[0043] In some embodiments, the liquid cooling pipeline 30 further includes a connector assembly 33, which is at least partially located outside the housing 10 for connecting external liquid cooling modules. Specifically, in use, the liquid cooling module can be located outside the housing 10 (e.g., at the top or end of the housing 10), or the liquid cooling module can be set independently of the housing 10 (e.g., the connector assembly 33 of multiple container energy storage systems connects to one liquid cooling module). This reduces the space occupied by the liquid cooling module within the housing 10, thereby allowing more battery boxes 42 to be installed within the housing 10, increasing the capacity of the container energy storage system.

[0044] In some embodiments, the bottom wall 12 of the enclosure 10 has a plurality of support beams 14, which extend along the length of the enclosure 10 and are spaced apart in the width direction. The battery rack 20 is disposed on the support beams 14, and the cable routing holes 213 are located between two adjacent support beams 14. The cable routing space 15 is at least partially located between two adjacent support beams 14. This not only increases the structural strength of the bottom wall 12 of the enclosure 10 through the support beams 14 and improves the installation stability of the battery rack 20, but also utilizes the gap between two adjacent support beams 14 to form the cable routing space 15, avoiding the need for a separate cable routing structure and simplifying the structure of the enclosure 10.

[0045] In some embodiments, the containerized energy storage system further includes a plurality of first insulating members 52, which are disposed on the bottom wall 12 of the container body 10, with the tops of the plurality of first insulating members 52 abutting against the bottom of the battery rack 20 to support the battery rack 20 and to space the bottom of the battery rack 20 from the bottom wall 12 of the container body 10. Specifically, the first insulating members 52 are made of high-strength insulating material, which may be, but is not limited to, sheet molding compound (SMC) or polyimide, etc. The distance between the battery rack 20 and the bottom wall 12 can be adjusted by using first insulating members 52 of different heights, which can be set according to actual needs. The gap between the battery rack 20 and the side wall can also be set according to actual needs, ensuring that the electrical clearance between the battery rack 20 and the container body 10 meets the insulation requirements.

[0046] By using multiple first insulating elements 52 to support the battery rack 20 inside the container 10, and by spacing the battery rack 20 from the bottom wall 12, top wall 11, and side walls of the container 10, insulation is achieved using air. This reduces the need for insulation structures at the bottom, top, and side 522 of the battery rack 20, thereby reducing the amount of insulation material and installation structure required, and lowering the production cost of the container energy storage system.

[0047] In some embodiments, the periphery of the first insulating member 52 has an anti-creep structure. By providing an anti-creep structure on the periphery of the first insulating member 52, the creepage distance between the battery rack 20 and the bottom wall 12 of the housing 10 can be increased, thereby reducing the risk of creepage, improving the insulation effect, and enhancing the safety of the containerized energy storage system. Of course, in other embodiments, the outer peripheral surface of the first insulating member 52 is provided with a smooth surface, for example, the first insulating member 52 is a standard cylinder or a standard prism.

[0048] In some embodiments, the first insulating member 52 includes an insulating body 521 and a plurality of insulating partitions 524. The plurality of insulating partitions 524 are horizontally disposed on the periphery of the insulating body 521 and are spaced apart in the vertical direction. Specifically, the insulating body 521 extends in the vertical direction and is mainly used to support the battery rack 20. The plurality of insulating partitions 524 form an anti-creep structure. Compared with the method of forming an anti-creep structure by setting an annular groove or annular rib on the outer peripheral surface of the insulating member, this allows the width of the insulating partitions 524 (i.e., the protrusion height relative to the outer peripheral surface of the insulating body 521) to be larger, which can increase the creepage distance when the height of the first insulating member 52 is constant.

[0049] In some embodiments, the insulating body 521 is plate-shaped and has two opposing sides 522 extending in the vertical direction. Each side 522 has a plurality of notches 523 spaced apart in the vertical direction. Each of the two opposing surfaces of the insulating body 521 has a plurality of insulating partitions 524. Specifically, the insulating partitions 524 on opposite sides of the insulating body 521 are arranged in a one-to-one correspondence. The notches 523 penetrate the surface of the insulating body 521 where the insulating partitions 524 are located. The plurality of notches 523 and the plurality of insulating partitions 524 together form an anti-creep structure. By making the insulating body 521 plate-shaped, the thickness difference between the insulating body 521 and the first insulating plate can be reduced, preventing deformation of the first insulating component 52 during molding due to excessive thickness difference between the insulating body 521 and the first insulating plate, thus improving the structural reliability of the first insulating component 52. In addition, since the insulating body 521 is plate-shaped, in order to ensure the supporting strength of the insulating body 521, the length of the insulating body 521 is greater than the height of the insulating body 521. By providing multiple notches 523 on the side 522, the protrusion of the insulating partition 524 relative to the side 522 can be reduced or even avoided, and the length of the insulating partition 524 can be reduced, which helps to reduce the risk of deformation during the molding of the first insulating component 52.

[0050] Of course, in other embodiments, the insulating partition 524 may be annular and surround the insulating body 521. The insulating body 521 may also be cylindrical or prismatic.

[0051] In some embodiments, the end face of the insulating partition 524 is flush with the side portion 522, and the side portion 522 has a plurality of notches 523 between adjacent insulating partitions 524. This avoids the insulating partition 524 protruding relative to the side portion 522, while also increasing the creepage distance from the top to the bottom of the side portion 522. Of course, in other embodiments, the insulating partition 524 may protrude relative to the side portion 522.

[0052] In some embodiments, the containerized energy storage system further includes a plurality of second insulating members 53, which are spaced apart and abut against the top of the battery rack 20 and the top wall 11 to create a gap between the top of the battery rack 20 and the top wall 11. The second insulating members 53, supporting the top wall 11 of the container 10 and the battery rack 20, improve the fixation of the battery rack 20 and reduce the risk of deformation of the top wall 11 of the container 10 leading to a reduction in the distance between the top wall 11 and the battery rack 20. Simultaneously, by providing an anti-creep structure on the periphery of the second insulating members 53, the creepage distance between the battery rack 20 and the top wall 11 of the container 10 can be increased, thereby reducing the risk of creepage, improving insulation performance, and enhancing the safety of the containerized energy storage system. Optionally, the shape of the second insulating member 53 is the same as that of the first insulating member 52, i.e., the periphery of the second insulating member 53 has an anti-creep structure. Of course, in other embodiments, the shape of the second insulating member 53 is different from that of the first insulating member 52.

[0053] In some embodiments, the containerized energy storage system further includes multiple third insulating elements connected between the battery rack 20 and the sidewall. These third insulating elements further secure the battery rack 20, improving its installation stability. Optionally, the shape of the third insulating element may be the same as (i.e., the second insulating element 53 has an anti-creep structure on its periphery) or different from that of the first insulating element 52.

[0054] In this embodiment, the containerized energy storage system also includes a fire-fighting container and a fire-fighting pipeline 62. The fire-fighting container is located on one side of the battery rack 20, and the fire-fighting pipeline 62 extends from above the battery rack 20 to each battery box 42. The battery box 42 has a fire-fighting interface connected to the fire-fighting pipeline 62. This allows the cavity inside the container 10 where the battery boxes 42 are installed to be relatively enclosed, which can improve the insulation and safety of the energy storage system.

[0055] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A container energy storage system, characterized by, The container energy storage system comprises: a box body; a battery rack arranged in the box body, the battery rack having a mounting position and a plurality of battery positions above the mounting position, and a wiring space between the battery rack and a bottom wall of the box body, a wire hole being arranged at a bottom of the mounting position and close to a front side of the battery rack; a liquid cooling pipeline arranged at the front side of the battery rack; a plurality of battery boxes, each of the battery boxes being arranged in one of the battery positions; and a high-voltage box arranged in the mounting position and spaced from the front side of the battery rack, the wire hole being at least partially located at a front side of the high-voltage box.

2. The container energy storage system of claim 1, wherein, The battery rack comprises a plurality of rack bodies, each of the rack bodies having the mounting position and a plurality of the battery positions, and the plurality of battery positions being sequentially arranged upwards from the mounting position.

3. The container energy storage system of claim 2, wherein, The box body is provided with a plurality of the rack bodies which are arranged in a length direction of the box body, and two rows of the rack bodies which are arranged in a width direction of the box body, the front sides of the two rack bodies being arranged away from each other; the box body is provided with a box door corresponding to the front side of the rack body.

4. The container energy storage system of claim 3, wherein, The container energy storage system further comprises an insulation component, a plurality of the insulation components being arranged between any adjacent two of the rack bodies arranged in the length direction of the box body, and the two ends of the insulation component being fixed to the corresponding rack bodies.

5. The container energy storage system of claim 1, wherein, The liquid cooling pipeline comprises a main pipeline and a branch pipeline connected to the main pipeline, the main pipeline being arranged below the front side of the battery rack, and the branch pipeline extending to the battery position.

6. The container energy storage system of claim 5, wherein, The liquid cooling pipeline further comprises a joint assembly, the joint assembly being at least partially arranged outside the box body and used for connecting an external liquid cooling module.

7. The container energy storage system of claim 1, wherein, The bottom wall of the box body is provided with a plurality of support beams, the plurality of support beams being arranged in the length direction of the box body and spaced in the width direction of the box body, the battery rack being arranged on the support beams, the wire hole being arranged at a position between adjacent two of the support beams, and the wiring space being at least partially arranged between the adjacent two of the support beams.

8. The container energy storage system of claim 1, wherein, The container energy storage system further comprises a plurality of first insulation components, the plurality of first insulation components being arranged on the bottom wall of the box body, and the top of the plurality of first insulation components abutting against the bottom of the battery rack to support the battery rack and space the bottom of the battery rack from the bottom wall of the box body.

9. The container energy storage system of claim 8, wherein, The first insulation component is provided with a creepage prevention structure on a circumferential side thereof.

10. The container energy storage system of claim 1, wherein, The container energy storage system further comprises a plurality of second insulation components, the plurality of second insulation components being arranged in a spaced manner between the top of the battery rack and a top wall of the box body to space the top of the battery rack from the top wall. And / or, the container energy storage system further comprises a plurality of third insulation components, the third insulation components being connected between the battery rack and side walls of the box body.

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