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, an accommodating space is arranged in the box body, and a cluster control box and a plurality of batteries are arranged in the accommodating space along the height direction; the front end face of the cluster control box is located behind the front end face of the battery, so that an installation space located in front of the cluster control box is formed. Through the arrangement of the installation space in front of the cluster control box, the arrangement of the high-voltage bus between the battery and the cluster control box and the high-voltage bus output by the cluster control box is facilitated, the operation space for plugging and unplugging various high-voltage buses from the cluster control box is provided, no extra space needs to be arranged between the box door and the cluster control box, and the space utilization rate is improved.

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, the cluster control box is placed under the battery cluster inside the container to make the layout more compact. However, since the front side of the cluster control box is connected to a high-voltage bus for input and output, additional space needs to be set between the container door and the cluster control box to place the high-voltage bus, 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 present invention is to overcome the defect of the prior art that an additional space is required between the container door and the cluster control box to place the high-voltage bus, which increases the overall volume of the container and reduces the space utilization, 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 having a storage space inside, wherein a cluster control box and a plurality of batteries are arranged in a height direction in the storage space;

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

[0008] Optionally, the cluster control box is arranged below the battery, and a wiring space is provided below the installation space.

[0009] Optionally, a liquid cooling assembly is also included, which includes a main liquid cooling pipe group and a secondary liquid cooling pipe group, the secondary liquid cooling pipe group is connected to the liquid cooling system of the battery, the main liquid cooling pipe group is connected to the secondary liquid cooling pipe group, and the main liquid cooling pipe group is arranged at a front position below the installation space.

[0010] Optionally, the secondary liquid cooling pipe group includes a secondary liquid inlet pipe and a secondary liquid outlet pipe, the secondary liquid inlet pipe is connected to the inlet of the liquid cooling system of the battery, and the secondary liquid outlet pipe is connected to the outlet of the liquid cooling system of the battery;

[0011] The main liquid cooling pipe group includes a main liquid inlet pipe and a main liquid outlet pipe, the main liquid inlet pipe is connected to the secondary liquid inlet pipe, and the main liquid outlet pipe is connected to the secondary liquid outlet pipe.

[0012] Optionally, the secondary liquid inlet pipe and the secondary liquid outlet pipe are respectively arranged on two sides of the battery, and both the secondary liquid inlet pipe and the secondary liquid outlet pipe avoid the installation space.

[0013] Optionally, a plurality of first mounting components are further included for fixing the battery; the first mounting components include:

[0014] A first mounting member is disposed in the accommodation space, wherein the first mounting member has a mounting cavity, and the mounting structure of the battery is placed in the mounting cavity;

[0015] The first limiting member is connected to the first mounting member to limit the movement of the battery in the width direction of the box.

[0016] Optionally, the first limiting member has an avoidance structure to avoid the battery adjacent to the first limiting member.

[0017] Optionally, a second mounting assembly is further included, for fixing the cluster control box; the second mounting assembly includes:

[0018] A second mounting member is disposed in the accommodation space;

[0019] The connecting member comprises a first connecting plate and a second connecting plate, wherein the first connecting plate is connected to the second mounting member, and the second connecting plate is connected to the cluster control box.

[0020] Optionally, the second mounting member has a second limiting member to limit the movement of the cluster control box in the length direction of the box.

[0021] Optionally, a reinforcement structure is provided between the first connecting plate and the second connecting plate.

[0022] The technical solution of this utility model has the following advantages:

[0023] The energy storage system provided by the utility model comprises a box body, wherein the box body has a containing space inside, and a cluster control box and a plurality of batteries are arranged in the containing space along the height direction; the front end face of the cluster control box is located behind the front end face of the battery to form an installation space located in front of the cluster control box.

[0024] By setting up the installation space in front of the cluster control box, it is convenient to arrange the high-voltage busbars between the battery and the cluster control box and the high-voltage busbars output by the cluster control box, and provide operating space for plugging and unplugging various types of high-voltage busbars from the cluster control box. There is no need to set up additional space between the box door and the cluster control box, thereby improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 A schematic structural diagram of an implementation scheme of an energy storage system provided in an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of a partial enlarged structure of a cluster control box;

[0028] Figure 3 for Figure 2 Another perspective structural diagram in ;

[0029] Figure 4 for Figure 1 A schematic diagram of the structure of the first installation component;

[0030] Figure 5 for Figure 1 Schematic diagram of the structure of the second installation component.

[0031] Description of reference numerals:

[0032] 1. Box body; 2. Cluster control box; 3. Battery; 4. Wiring space; 5. Secondary liquid inlet pipe; 6. Secondary liquid outlet pipe; 7. Main liquid inlet pipe; 8. Main liquid outlet pipe; 9. First mounting assembly; 10. First mounting part; 11. Mounting cavity; 12. Mounting structure; 13. First limiter; 14. Second mounting assembly; 15. Second mounting part; 16. First connecting plate; 17. Second connecting plate; 18. Second limiter; 19. Mounting space; 20. Connecting fasteners; 21. Avoidance structure; 22. Reinforcement structure; 23. Box door. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] The energy storage system provided in this embodiment improves space utilization and safety of the battery cluster by arranging the batteries and the cluster control box and setting the installation space in front of the control box.

[0039] like Figures 1 to 3 As shown, a specific implementation of the energy storage system provided in this embodiment includes a box body 1, the box body 1 has a storage space inside, and a cluster control box 2 and a plurality of batteries 3 are arranged in the storage space along the height direction; the front end face of the cluster control box 2 is located behind the front end face of the battery 3 to form an installation space 19 located in front of the cluster control box 2. It should be noted that the height direction refers to Figure 1 the front end surface of the cluster control box 2 and the front end surface of the battery 3 are both disposed opposite to the door 23.

[0040] By setting the installation space 19 in front of the cluster control box 2, it is convenient to arrange the high-voltage bus between the battery 3 and the cluster control box 2 and the high-voltage bus output by the cluster control box 2, and provide operating space for plugging and unplugging various types of high-voltage bus from the cluster control box. There is no need to set additional space between the box door 23 and the cluster control box 2, thereby improving space utilization; under the same volume, the energy density of the energy storage system can be maximized.

[0041] The cluster control box 2 and the battery 3 are arranged in an array. The cluster control box 2 can be connected to the battery 3 through a relatively short high-voltage bus. The cluster control box 2 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 2 are arranged close to each other, with high space utilization, cluster-level management and control can be achieved, and the protection effect on the battery cluster is good.

[0042] Specifically, a box door 23 is provided on the front side of the box body 1, and the box door 23 can open and close the box body 1 to facilitate the maintenance of internal components; the cluster control box 2 is a cluster-level DC distribution control box; multiple batteries 3 are electrically connected through a high-voltage bus, and multiple batteries 3 are connected in series to form a battery cluster, and the positive and negative high voltages of the battery cluster are respectively connected to the cluster control box 2 through the high-voltage bus.

[0043] Specifically, a plurality of accommodating spaces arranged along the length direction of the box body 1 may be provided in the box body 1. Figure 1 In the left and right directions, the cluster control box 2 and the battery cluster are connected one by one; the accommodating space can be formed between the side walls of the box body 1, and can also be formed by a cluster frame arranged inside the box body 1.

[0044] like Figure 1 As shown, in the energy storage system provided by this embodiment, the cluster control box 2 is arranged below the battery 3, and a wiring space 4 is arranged below the installation space 19. The output high-voltage busbar of the cluster control box 2 is connected to the control unit of the electrical compartment (not shown in the figure) in the box body 1 through the wiring space 4, without occupying the installation space 19 in front of the cluster control box 2, which is more conducive to the orderly installation of each high-voltage busbar connected to the cluster control box 2.

[0045] Specifically, the wiring space 4 can be provided separately by a frame, or can be formed by utilizing the frame structure of the box 1 itself.

[0046] In addition, as an alternative implementation, the wiring space 4 is not provided, and the output high-voltage busbar of the cluster control box 2 is routed through the cluster racks on both sides thereof.

[0047] like Figure 2 and Figure 3As shown, the energy storage system provided in this embodiment also includes a liquid cooling component, which includes a main liquid cooling pipe group and a secondary liquid cooling pipe group. The secondary liquid cooling pipe group is connected to the liquid cooling system of the battery 3, and the main liquid cooling pipe group is connected to the secondary liquid cooling pipe group. The main liquid cooling pipe group is arranged at a front position below the installation space 19.

[0048] The arrangement of the main liquid cooling pipe group will not block the cluster control box 2, and the cluster control box 2 can be pulled straight out from the box body 1 along the width direction of the box body 1, which has excellent maintainability for the cluster control box 2; and the cluster control box 2 is away from the liquid cooling components, and when the coolant leaks, the coolant will not directly splash or drip onto the cluster control box 2 and the plug-in interface area on the cluster control box 2, thereby avoiding accidents causing electrical short circuits and improving its safety.

[0049] 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.

[0050] like Figure 2 and Figure 3 As shown, in the energy storage system provided in this embodiment, the secondary liquid cooling pipe group includes a secondary liquid inlet pipe 5 and a secondary liquid outlet pipe 6, the secondary liquid inlet pipe 5 is connected to the liquid cooling system inlet of the battery 3, and the secondary liquid outlet pipe 6 is connected to the liquid cooling system outlet of the battery 3; the main liquid cooling pipe group includes a main liquid inlet pipe 7 and a main liquid outlet pipe 8, the main liquid inlet pipe 7 is connected to the secondary liquid inlet pipe 5, and the main liquid outlet pipe 8 is connected to the secondary liquid outlet pipe 6.

[0051] When cooling the battery 3, the coolant enters the secondary liquid inlet pipe 5 from the main liquid inlet pipe 7, and then is respectively sent to the liquid cooling system on the front side of each battery 3. After liquid cooling, the coolant passes through the secondary liquid outlet pipe 6 and is sent out from the main liquid outlet pipe 8. The setting of the secondary liquid cooling pipe group saves pipelines, and the coolant can be directly sent to each battery 3 synchronously, avoiding the clutter caused by the pipeline leading out of each battery 3 and occupying space.

[0052] like Figure 2 and Figure 3 As shown, in the energy storage system provided by this embodiment, the secondary liquid inlet pipe 5 and the secondary liquid outlet pipe 6 are respectively arranged on both sides of the battery 3, and the secondary liquid inlet pipe 5 and the secondary liquid outlet pipe 6 avoid the installation space. Specifically, the secondary liquid inlet pipe 5 and the secondary liquid outlet pipe 6 are arranged at a position close to the box door 23, so that after opening the box door 23, the liquid cooling component can be directly inspected and maintained, and the maintainability is good.

[0053] like Figure 4As shown, the energy storage system provided in this embodiment also includes a plurality of first mounting components 9, wherein the first mounting component 9 is used to fix the battery 3; the first mounting component 9 includes a first mounting member 10 and a first limiting member 13, the first mounting member 10 is arranged in the accommodating space, the first mounting member 10 has a mounting cavity 11, and the mounting structure 12 of the battery 3 is placed in the mounting cavity 11; the first limiting member 13 is connected to the first mounting member 10 to limit the movement of the battery 3 in the width direction of the box body 1.

[0054] The plurality of batteries 3 are fixed respectively by the plurality of first mounting components 9, so that the maintenance and repair of the single battery 3 is convenient. When maintenance is required, there is no need to disassemble the entire battery cluster, which is simple and quick.

[0055] A specific implementation of the first mounting member 10, the first mounting member 10 includes a top plate, a side plate and a bottom plate connected in sequence, wherein the side plate is connected to the side wall of the accommodating space, and may be welded or bolted, and a mounting cavity 11 is formed between the top plate and the bottom plate, and each battery 3 is installed through the first mounting members 10 on both sides, and the mounting structure 12 of the battery 3 is inserted in the mounting cavity 11, and other parts of the battery 3 are in an empty state, so that adjacent batteries 3 are closer and close to each other, and the reserved gap is very small, which further saves space.

[0056] A specific implementation of the first limit member 13, the first limit member 13 is a plate structure, on which a first threaded hole is arranged, connecting blocks are arranged on the top plate and the bottom plate of the first mounting member 10, and the connecting blocks are arranged on the second threaded hole. When the battery 3 is placed in place, the first limit member 13 is docked on the first mounting member 10, and the first threaded hole and the second threaded hole are connected by connecting fasteners 20 to achieve connection between the first limit member 13 and the first mounting member 10. The first limit member 13 is arranged between the box door 23 and the first mounting member 10 to prevent the battery 3 from moving toward the box door 23 along the width direction of the box body 1, and prevent the battery box door 23 from falling off the first mounting member 10, thereby improving the installation reliability of the battery box door 23 in the box body 1 and improving the safety of its battery (battery cluster).

[0057] In other embodiments, the first mounting member 10 is a partition, a plurality of partitions form a plurality of mounting cavities 11, and the battery box door 23 is directly disposed between adjacent partitions.

[0058] like Figure 4As shown, the energy storage system provided by this embodiment has an avoidance structure 21 on the first limit member 13 to avoid the battery 3 adjacent to the first limit member 13. Since the gap between adjacent batteries 3 is small, the setting of the avoidance structure 21 avoids affecting the independent disassembly of the upper and lower adjacent batteries 3. When disassembling the battery 3, it is only necessary to disassemble the first limit member 13, various joints and liquid cooling pipes at the front of the battery 3 to quickly complete the replacement of the battery 3, thereby improving the disassembly and maintainability of the battery 3.

[0059] Specifically, the avoidance structure 21 is an arc structure. In addition, as an alternative implementation, the avoidance structure 21 may also be a chamfered structure.

[0060] like Figure 5 As shown, the energy storage system provided in this embodiment also includes a second mounting assembly 14, which is used to fix the cluster control box 2; the second mounting assembly 14 includes a second mounting member 15 and a connecting member, and the second mounting member 15 is arranged in the accommodating space; the connecting member has a first connecting plate 16 and a second connecting plate 17, the first connecting plate 16 is connected to the second mounting member 15, and the second connecting plate 17 is connected to the cluster control box 2.

[0061] The cluster control box 2 is fixed by means of the second mounting components 14 arranged on both sides thereof. The second mounting components 14 only need to connect the two sides of the cluster control box 2, and the other parts of the cluster control box 2 are not supported, so that the cluster control box 2 and the battery 3 are more compact. When disassembling, only the connecting parts need to be disassembled to take out the cluster control box 2, which is convenient for disassembly and replacement, thereby improving the disassembly and maintainability of the cluster control box 2.

[0062] A specific implementation of the second mounting member 15, the second mounting member 15 is an L-shaped structure, the vertical plate of the second mounting member 15 is connected to the side wall of the accommodating space, the horizontal plate of the second mounting member 15 is connected to the first connecting plate 16 by bolts, and the second connecting plate 17 and the cluster control box 2 are connected by bolts; specifically, the angle between the vertical plate and the horizontal plate of the second mounting member 15 is set according to the internal structure of the box body 1, generally a right angle or an obtuse angle.

[0063] Specifically, the first connecting plate 16 and the second connecting plate 17 in the connecting member form an L-shaped structure.

[0064] like Figure 5 As shown, in the energy storage system provided by this embodiment, the second mounting member 15 has a second limiting member 18 to limit the movement of the cluster control box 2 in the length direction of the box body 1 to prevent the cluster control box 2 from swinging in the length direction of the box body 1. Specifically, the second limiting member 18 is a plate structure and can be the vertical plate of the second mounting member 15 mentioned above.

[0065] like Figure 5 As shown, in the energy storage system provided by this embodiment, a reinforcing structure 22 is provided between the first connecting plate 16 and the second connecting plate 17, so as to enhance the structural strength of the connecting member and make the installation of the cluster control box 2 more stable.

[0066] Specifically, the reinforcement structure 22 is a triangular plate structure disposed between the first connecting plate 16 and the second connecting plate 17 .

[0067] 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) has a storage space inside, wherein a cluster control box (2) and a plurality of batteries (3) are arranged in a height direction in the storage space; The front end surface of the cluster control box (2) is located behind the front end surface of the battery (3) to form an installation space (19) located in front of the cluster control box (2).

2. The energy storage system according to claim 1, characterized in that: The cluster control box (2) is arranged below the battery (3), and a wiring space (4) is arranged below the installation space (19).

3. The energy storage system according to claim 1, characterized in that: It also includes a liquid cooling component, which includes a main liquid cooling pipe group and a secondary liquid cooling pipe group, the secondary liquid cooling pipe group is connected to the liquid cooling system of the battery (3), the main liquid cooling pipe group is connected to the secondary liquid cooling pipe group, and the main liquid cooling pipe group is arranged at a front position below the installation space (19).

4. The energy storage system according to claim 3, characterized in that: The secondary liquid cooling pipe group comprises a secondary liquid inlet pipe (5) and a secondary liquid outlet pipe (6), wherein the secondary liquid inlet pipe (5) is connected to the inlet of the liquid cooling system of the battery (3), and the secondary liquid outlet pipe (6) is connected to the outlet of the liquid cooling system of the battery (3); The main liquid cooling pipe group comprises a main liquid inlet pipe (7) and a main liquid outlet pipe (8), wherein the main liquid inlet pipe (7) is connected to the secondary liquid inlet pipe (5), and the main liquid outlet pipe (8) is connected to the secondary liquid outlet pipe (6).

5. The energy storage system according to claim 4, characterized in that: The secondary liquid inlet pipe (5) and the secondary liquid outlet pipe (6) are respectively arranged on both sides of the battery (3), and both the secondary liquid inlet pipe (5) and the secondary liquid outlet pipe (6) avoid the installation space (19).

6. The energy storage system according to claim 1, characterized in that: It also includes a plurality of first mounting components (9) for fixing the battery (3); the first mounting components (9) include: A first mounting member (10) is arranged in the accommodation space, wherein the first mounting member (10) has a mounting cavity (11), and a mounting structure (12) of the battery (3) is placed in the mounting cavity (11); A first limiting member (13) is connected to the first mounting member (10) to limit the movement of the battery (3) in the width direction of the box body (1).

7. The energy storage system according to claim 6, characterized in that: The first limiting member (13) is provided with an avoidance structure (21) for avoiding the battery (3) adjacent to the first limiting member (13).

8. The energy storage system according to claim 1, characterized in that: It also includes a second mounting assembly (14) for fixing the cluster control box (2); the second mounting assembly (14) includes: A second mounting member (15) is arranged in the accommodation space; The connecting member comprises a first connecting plate (16) and a second connecting plate (17), wherein the first connecting plate (16) is connected to the second mounting member (15), and the second connecting plate (17) is connected to the cluster control box (2).

9. The energy storage system according to claim 8, characterized in that: The second mounting member (15) has a second limiting member (18) to limit the movement of the cluster control box (2) in the length direction of the box body (1).

10. The energy storage system according to claim 8, characterized in that: A reinforcement structure (22) is provided between the first connecting plate (16) and the second connecting plate (17).

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