Energy storage system

Abstract

The utility model provides an energy storage system, which belongs to the technical field of energy storage, and comprises a box body, a plurality of cluster frames are arranged in the box body, an accommodating space is formed between adjacent cluster frames, and a plurality of batteries are arranged in the accommodating space along the height direction; the front end face of the cluster frame is located behind the front end face of the battery, so that an installation space located in front of the cluster frame is formed. Through the arrangement of the installation space, circuits and pipelines connected with the batteries can be arranged in the installation space, the space between the batteries and the box door is not occupied, the space utilization rate in the box body is greatly improved, and the length and capacity of the batteries are increased to the maximum extent under the condition that the width of the box body is consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to an energy storage system. Background Art

[0002] As energy storage technology becomes increasingly mature, energy storage equipment and systems are also developing rapidly. Currently, the most common energy storage system is the containerized energy storage system.

[0003] At present, batteries are installed inside containers by setting up cluster racks. Generally, the front end of the cluster rack is flush with the front end of the battery, so additional space needs to be set between the container door and the battery to accommodate high-voltage busbars and pipelines, etc., which increases the overall volume of the container and reduces space utilization. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that an additional space is set between the container door and the battery to accommodate lines and pipelines, etc., which increases the overall volume of the container and reduces the space utilization rate, thereby providing an energy storage system.

[0005] In order to solve the above technical problems, the utility model provides an energy storage system, comprising:

[0006] A box body, wherein a plurality of cluster frames are arranged inside the box body, a storage space is formed between adjacent cluster frames, and a plurality of batteries are arranged in a height direction in the storage space;

[0007] The front end surface of the cluster frame is located behind the front end surface of the battery to form an installation space located in front of the cluster frame.

[0008] Optionally, a liquid cooling component is further included, which is arranged in the installation space, and the liquid cooling component includes a main liquid inlet pipe and a main liquid outlet pipe, the main liquid inlet pipe is connected to the inlet of the liquid cooling system of the battery, and the main liquid outlet pipe is connected to the outlet of the liquid cooling system of the battery.

[0009] Optionally, a first connecting member is provided on the cluster frame, and the first connecting member is used to fix the main liquid inlet pipe and the main liquid outlet pipe.

[0010] Optionally, a partition is provided in the installation space to separate two adjacent liquid cooling components.

[0011] Optionally, the partition frame includes a connecting rod and a plurality of supporting rods, and the plurality of supporting rods are arranged in sequence on the cluster frame along the height direction of the box body; and the connecting rod is connected to the plurality of supporting rods.

[0012] Optionally, it also includes:

[0013] A cluster control box is disposed below the plurality of batteries and is electrically connected to the batteries.

[0014] Optionally, it also includes:

[0015] A high-voltage bus and a low-voltage communication line are used to connect the cluster control box and the battery, and the adjacent batteries. The high-voltage bus and the low-voltage communication line are respectively arranged on both sides of the battery.

[0016] Optionally, the high-voltage busbar is connected to the partition frame via a second connecting member.

[0017] Optionally, in the width direction of the box body, there is a safety gap between the high-voltage busbar and the liquid cooling assembly.

[0018] Optionally, it further includes a box door, which is arranged on the box body, and the liquid cooling component, the high-voltage bus and the low-voltage communication line are arranged opposite to the box door.

[0019] The technical solution of the utility model has the following advantages:

[0020] The energy storage system provided by the utility model comprises a box body, a plurality of cluster frames are arranged inside the box body, a storage space is formed between adjacent cluster frames, and a plurality of batteries are arranged in the storage space along the height direction; the front end face of the cluster frame is located behind the front end face of the battery to form an installation space located in front of the cluster frame.

[0021] By setting up the installation space, the lines and pipes connected to the battery can be set in the installation space without occupying the space between the battery and the box door, which greatly improves the space utilization inside the box and maximizes the length and capacity of the battery while keeping the box width the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic structural diagram of an implementation scheme of an energy storage system provided in an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 A local enlarged schematic diagram in FIG.

[0025] Figure 3 for Figure 2 A local enlarged schematic diagram in FIG.

[0026] Figure 4 for Figure 3 A side view schematic diagram of the structure;

[0027] Figure 5 for Figure 1 A schematic structural diagram of a specific implementation of the middle partition frame;

[0028] Figure 6 It is a structural schematic diagram of another specific implementation method of the partition.

[0029] Description of reference numerals:

[0030] 1. Box body; 2. Cluster frame; 3. Battery; 4. Installation space; 5. Main liquid inlet pipe; 6. Main liquid outlet pipe; 7. First connecting piece; 8. Partition frame; 9. Connecting rod; 10. Support rod; 11. Cluster control box; 12. High-voltage busbar; 13. Low-voltage communication line; 14. Second connecting piece; 15. Safety gap; 16. Box door; 17. Branch pipe. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The battery mentioned in the description of the present invention refers to a single physical module including one or more battery cells to increase the voltage and quantity. Exemplarily, the battery is composed of multiple battery cells connected in series and / or in parallel. For example, the battery mentioned in the present invention may include a battery module or a battery pack.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] The energy storage system provided in this embodiment greatly improves the utilization rate of the internal space of the box by arranging the installation space in front of the cluster frame.

[0037] like Figures 1 to 4 As shown, a specific implementation of the energy storage system provided in this embodiment includes a box body 1, a plurality of cluster frames 2 are arranged inside the box body 1, and a storage space is formed between adjacent cluster frames 2. A plurality of batteries 3 are arranged in the storage space along the height direction; the front end surface of the cluster frame 2 is located behind the front end surface of the battery 3 to form an installation space 4 located in front of the cluster frame 2. It should be noted that the height direction is Figure 1 In the up-down direction shown in FIG. 1 , the front side surface refers to the surface opposite to the box door 16 .

[0038] By setting up the installation space 4, the lines and pipes connected to the battery 3 can be set in the installation space 4, without occupying the space between the battery 3 and the box door 16, which greatly improves the space utilization inside the box 1 and maximizes the length and capacity of the battery when the width of the box 1 is consistent.

[0039] Specifically, the interior of the box body 1 is a rectangular cavity structure, and the cluster frame 2 is vertically arranged to divide the interior of the box body 1 into a plurality of rectangular structure accommodation spaces. There is no limitation on the fixing method of the battery 3 on the cluster frame 2, and the battery 3 can be fixed by setting a support plate or the like.

[0040] In a specific implementation of the cluster frame 2, the cluster frame 2 is a plate structure, and the two sides of a cluster frame 2 can fix the batteries 3 in two adjacent accommodating spaces. In addition, as an alternative implementation, the cluster frame 2 can also be a frame structure.

[0041] like Figures 2 to 4 As shown, the energy storage system provided in this embodiment also includes a liquid cooling component, which is arranged in the installation space 4. The liquid cooling component includes a main liquid inlet pipe 5 and a main liquid outlet pipe 6. The main liquid inlet pipe 5 is connected to the inlet of the liquid cooling system of the battery 3, and the main liquid outlet pipe 6 is connected to the outlet of the liquid cooling system of the battery 3.

[0042] Specifically, the main liquid inlet pipe 5 and the main liquid outlet pipe 6 corresponding to the battery 3 are respectively arranged on both sides of the battery 3, that is, the corresponding pipes in the two adjacent accommodating spaces are simultaneously arranged in the same installation space 4, and the arrangement is compact. Through the main liquid inlet pipe 5 and the main liquid outlet pipe 6, the coolant can be directly and synchronously delivered to each battery 3 and the coolant passing through each battery 3 can be synchronously delivered, saving pipelines and avoiding the clutter caused by the pipelines leading out of each battery 3 and occupying space.

[0043] Specifically, the main liquid inlet pipe 5 and the main liquid outlet pipe 6 are both vertically arranged, and the distance between each battery 3 is equal, so that the cooling between multiple batteries 3 is more balanced; there is no limitation on the installation position of the main liquid inlet pipe 5 and the main liquid outlet pipe 6, and they are mainly arranged close to the inlet and outlet of the liquid cooling system of the battery 3; the main liquid inlet pipe 5 and the main liquid outlet pipe 6 are respectively connected to the battery 3 through the branch pipe 17.

[0044] When cooling the battery 3 , the coolant is sent from the main liquid inlet pipe 5 to the inlet of the liquid cooling system of each battery 3 . After cooling the battery in the liquid cooling system, the coolant enters the main liquid outlet pipe 6 and is sent out.

[0045] There is no specific limitation on the liquid cooling system of the battery 3 , and the liquid cooling system may be a liquid cooling plate disposed on the front side or inside the battery 3 , or may be other liquid cooling methods.

[0046] like Figure 4 As shown, in the energy storage system provided in this embodiment, a first connecting member 7 is provided on the cluster frame 2, and the first connecting member 7 is used to fix the main liquid inlet pipe 5 and the main liquid outlet pipe 6. The setting of the first connecting member 7 ensures the stability of the main liquid inlet pipe 5 and the main liquid outlet pipe 6.

[0047] Specifically, a plurality of first connecting members 7 can be provided, which are arranged on the front side of the cluster frame 2, and the first connecting member 7 is a cable tie or a buckle.

[0048] like Figures 2 to 6 As shown, in the energy storage system provided in this embodiment, a partition frame 8 is provided in the installation space 4 to separate two adjacent liquid cooling components.

[0049] By arranging a partition 8 on the cluster frame 2, the pipelines of adjacent liquid cooling components are separated to avoid the pipelines being mistakenly inserted into adjacent batteries 3 during installation. The arrangement of the partition 8 plays a protective role and further improves the reliability of the product.

[0050] Specifically, Figure 3As shown, the partition frame 8 is arranged on the front side of the cluster frame 2 and will not occupy the space of the accommodation space. Preferably, the width dimension of the partition frame 8 is smaller than the width dimension of the cluster frame 2, and space can be saved on both sides of the cluster frame 2 to install accessories and liquid cooling components on the battery 3, etc., thereby saving space. It should be noted that the width dimensions of the partition frame 8 and the cluster frame 2 refer to the dimensions along the length direction of the box body 1.

[0051] like Figure 3 and Figure 4 The main liquid inlet pipe 5 and the main liquid outlet pipe 6 are pipelines in the liquid cooling components of two adjacent accommodating spaces, and are both arranged on both sides of the partition frame 8 on the front side of the cluster frame 2.

[0052] like Figure 4 and Figure 5 As shown, in the energy storage system provided in this embodiment, the partition frame 8 includes a connecting rod 9 and a plurality of support rods 10, and the plurality of support rods 10 are arranged in sequence on the cluster frame 2 along the height direction of the box body 1; the connecting rod 9 is connected to the plurality of support rods 10.

[0053] Specifically, the partition frame 8 plays a supporting and isolating role, and the setting of the frame structure itself is not limited to the installation of components on both sides. The connecting rod 9 and the supporting rod 10 can be a square rod or a round rod structure.

[0054] Specifically, the connecting rod 9 and the support rod 10 are an integrated structure, and the length of the connecting rod 9 is set according to the space occupied by the high-voltage bus 12 and the liquid cooling component to avoid waste caused by excessive length; there is no limit on the number of support rods 10. When there are two support rods 10, they are located at both ends of the connecting rod 9 to form a U-shaped structure. The support rods 10 can also be other numbers. When there is one support rod 10, it can be set in the middle to form a T-shaped structure, or it can be set on one side to form an L-shaped structure.

[0055] In addition, as an alternative implementation, Figure 6 As shown, a plurality of partition frames 8 may be provided, and the plurality of partition frames 8 are arranged on the front side surface of the cluster frame 2 at intervals along the height direction of the box body 1 .

[0056] like Figure 1 As shown, the energy storage system provided in this embodiment further includes a cluster control box 11 , which is disposed below the plurality of batteries 3 , and is electrically connected to the batteries 3 .

[0057] The cluster control box 11 can be connected to the battery 3 through a shorter high-voltage busbar. The cluster control box 11 electrically isolates or connects the battery 3 and protects the battery 3 from overcurrent, which has high safety. The battery 3 and the cluster control box 11 are arranged close to each other, with high space utilization, cluster-level management and control, and good protection effect on the battery cluster.

[0058] Specifically, the cluster control box 11 is a cluster-level DC power distribution control box; a plurality of batteries 3 are connected in series in sequence to form a battery cluster, and the positive and negative high voltages of the battery cluster are respectively connected to the cluster control box 11 through high voltage busbars.

[0059] like Figure 2 As shown, the energy storage system provided in this embodiment further includes a high-voltage bus 12 and a low-voltage communication line 13, and the cluster control box 11 and the battery 3, and adjacent batteries 3 are connected through the high-voltage bus 12 and the low-voltage communication line 13; the high-voltage bus 12 and the low-voltage communication line 13 are respectively arranged on both sides of the battery.

[0060] The high-voltage busbar 12 and the low-voltage communication line 13 are arranged on both sides, so that the two are greatly separated from each other, thereby avoiding communication interference caused by the high-voltage busbar to the low-voltage communication line, and improving the communication safety and reliability of the battery 3 inside the box 1.

[0061] like Figure 4 As shown, in the energy storage system provided in this embodiment, the high-voltage bus 12 is connected to the partition frame 8 through the second connecting member 14, thereby ensuring the stability of the high-voltage bus 12 in the box body 1.

[0062] Specifically, the second connecting member 14 can be a cable tie, by which the high-voltage busbar 12 is fixed to the partition frame 8. In addition, as a replaceable embodiment, the second connecting member 14 is an annular ring, which is fixed to the partition frame 8 and the high-voltage busbar 12 is clamped in the annular ring.

[0063] like Figure 4 As shown, the energy storage system provided in this embodiment has a safety gap 15 between the high-voltage bus 12 and the liquid cooling assembly in the width direction of the box body 1. The setting of the safety gap 15 separates the high-voltage bus 12 and the liquid cooling assembly, prevents the coolant in the liquid cooling assembly from leaking onto the high-voltage bus 12, and improves the safety between the high-voltage bus 12 and the liquid cooling assembly.

[0064] There is no limitation on the specific value of the safety gap 15 , as long as there is a distance between the high-voltage busbar 12 and the liquid cooling assembly.

[0065] like Figure 1 As shown, the energy storage system provided in this embodiment further includes a box door 16, which is arranged on the box body 1, and the liquid cooling assembly, the high-voltage bus 12 and the low-voltage communication line 13 are arranged opposite to the box door 16. That is, after the box door 16 is opened, the liquid cooling assembly, the high-voltage bus 12 and the low-voltage communication line 13 can be directly assembled and disassembled, so that it has good disassembly and maintenance performance.

[0066] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the present utility model.

Claims

1. An energy storage system, characterized in that: include: A box body (1), wherein a plurality of cluster frames (2) are arranged inside the box body (1), a storage space is formed between adjacent cluster frames (2), and a plurality of batteries (3) are arranged in a height direction in the storage space; The front end surface of the cluster frame (2) is located behind the front end surface of the battery (3) to form an installation space (4) located in front of the cluster frame (2).

2. The energy storage system according to claim 1, characterized in that: It also includes a liquid cooling component, which is arranged in the installation space (4), and includes a main liquid inlet pipe (5) and a main liquid outlet pipe (6), the main liquid inlet pipe (5) is connected to the inlet of the liquid cooling system of the battery (3), and the main liquid outlet pipe (6) is connected to the outlet of the liquid cooling system of the battery (3).

3. The energy storage system according to claim 2, characterized in that: The cluster frame (2) is provided with a first connecting piece (7), and the first connecting piece (7) is used to fix the main liquid inlet pipe (5) and the main liquid outlet pipe (6).

4. The energy storage system according to claim 2, characterized in that: A partition (8) is provided in the installation space (4) to separate two adjacent liquid cooling components.

5. The energy storage system according to claim 4, characterized in that: The partition frame (8) comprises a connecting rod (9) and a plurality of supporting rods (10), wherein the plurality of supporting rods (10) are arranged in sequence on the cluster frame (2) along the height direction of the box body (1); and the connecting rod (9) is connected to the plurality of supporting rods (10).

6. The energy storage system according to claim 4, characterized in that: Also includes: A cluster control box (11), the cluster control box (11) is arranged below the plurality of batteries (3), and the cluster control box (11) is electrically connected to the batteries (3).

7. The energy storage system according to claim 6, characterized in that: Also includes: A high-voltage busbar (12) and a low-voltage communication line (13); the cluster control box (11) and the battery (3), and adjacent batteries (3) are connected via the high-voltage busbar (12) and the low-voltage communication line (13); the high-voltage busbar (12) and the low-voltage communication line (13) are respectively arranged on both sides of the battery.

8. The energy storage system according to claim 7, characterized in that: The high-voltage busbar (12) is connected to the partition frame (8) via a second connecting member (14).

9. The energy storage system according to claim 7, characterized in that: In the width direction of the box body (1), there is a safety gap (15) between the high-voltage busbar (12) and the liquid cooling assembly.

10. The energy storage system according to claim 7, characterized in that: It also includes a box door (16), which is arranged on the box body (1), and the liquid cooling component, the high-voltage busbar (12) and the low-voltage communication line (13) are arranged opposite to the box door (16).

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