Energy storage system

Abstract

The utility model discloses an energy storage system which comprises a box body, a flow guide row, at least two modules and a plurality of supports, and a containing cavity is formed in the box body. The modules are arranged in the containing cavity and arranged in the first direction. The flow guide row is arranged on one side, in the second direction, of the modules, extends in the first direction and is electrically connected with the multiple modules at the same time, and the first direction and the second direction are perpendicular to each other and located on the horizontal plane of the box body; the supports are arranged on the module, at least one support is arranged at intervals in the first direction, and the flow guide row is in lap joint with the multiple supports at the same time. The energy storage system can solve the technical problem that the flow guide row is unstable in the using process due to the fact that the length of the flow guide row is large and the stress of the connecting position of the flow guide row and the module is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery technology field especially relates to a kind of energy storage systems. BACKGROUND

[0002] In modern energy storage system, flow guide row is used to connect multiple modules in series or parallel in energy storage system, and the flow guide row is an important component to ensure stable current transmission.

[0003] However, in the prior art, the stability problem of the flow guide row has been a pain point in design and application. Due to the instability of the flow guide row, it may cause discontinuous current transmission, affect the overall performance of the energy storage system, and even cause safety hazards. SUMMARY

[0004] One purpose of the utility model is to provide an energy storage system, which aims to solve the technical problem that the length of the flow guide row is too long, the connection between the flow guide row and the module is under great stress, and the flow guide row is unstable during use.

[0005] To achieve the above purpose, the utility model provides a scheme: an energy storage system, comprising: a box body, a flow guide row, at least two modules and a plurality of supports, the box body forms a receiving cavity; a plurality of modules are arranged in the receiving cavity and arranged along a first direction; the flow guide row is arranged on one side of the module along a second direction and extends along the first direction, and the flow guide row is electrically connected to the plurality of modules; the first direction and the second direction are perpendicular to each other, and the first direction and the second direction are located on the horizontal plane of the box body; the support is arranged on the module, and the plurality of supports are arranged along the first direction; and the flow guide row is simultaneously lapped on the plurality of supports.

[0006] Optionally, the support is provided with a first slot and a second slot, the opening direction of the first slot and the opening direction of the second slot are opposite and both protrude along a third direction, and the third direction is perpendicular to the first direction and the second direction respectively.

[0007] Optionally, the support is provided with a positioning slot, the energy storage system comprises an elastic member, the elastic member is arranged inside the positioning slot, the flow guide row is arranged between the elastic member and the side wall of the positioning slot, the elastic member is used for clamping the flow guide row, and the positioning slot is located on the side away from the first slot.

[0008] Optionally, the depths of the first slot and the second slot are different.

[0009] Optionally, the number of supports is the same as the number of modules, the support and the module are one-to-one corresponding, and the spacing of the plurality of supports is the same.

[0010] Optionally, the module comprises the cell group and two end plates, the cell group is composed of a plurality of cells arranged along a second direction, and the two end plates are clamped on opposite sides of the cell group along the second direction.

[0011] Optionally, the end plate comprises a clamping portion and a first connecting portion, the clamping portion is used for clamping the cell group, the first connecting portion is arranged on a side of the clamping portion away from the cell group, and the first connecting portion extends out of the clamping portion along the second direction. The energy storage system comprises a fastener, the fastener is arranged along a third direction, the fastener is connected with the first connecting portion and the box respectively, and the third direction is perpendicular to the first direction and the second direction respectively.

[0012] Optionally, the energy storage system comprises a reinforcing member, the first connecting portion is in a hollow state and is provided with an accommodation hole penetrating through the first connecting portion along the third direction, the reinforcing member is arranged in the accommodation hole and connects opposite side walls of the first connecting portion, and the fastener is arranged in the reinforcing member and connected with the box.

[0013] Optionally, the reinforcing member comprises a protection portion and a second connecting portion, the second connecting portion is arranged in the accommodation hole and connects the opposite side walls of the first connecting portion, and the protection portion and the second connecting portion are connected and abut against the first connecting portion. The fastener comprises a screw rod and a limiting portion, the screw rod is threadedly connected with the reinforcing member and the box respectively, the limiting portion is connected to one end of the screw rod, the limiting portion is arranged on a side of the protection portion away from the second connecting portion and abuts against the protection portion, and a projection of the limiting portion on a plane where the protection portion is located is inside the protection portion.

[0014] Optionally, the end plate comprises a first portion, the first portion is connected with the first connecting portion and the clamping portion respectively, and is inclined to the first connecting portion and the clamping portion.

[0015] Optionally, the end plate comprises a second portion arranged in the clamping portion and a plurality of third portions, opposite ends of the second portion are connected with opposite side walls of the clamping portion respectively, the second portion is arranged perpendicular to the side wall of the clamping portion, opposite ends of the third portion are connected with the opposite side walls of the clamping portion respectively, the third portion is arranged inclined to the direction of the side wall of the clamping portion, and the plurality of third portions are connected alternately in head-to-tail mode.

[0016] Optionally, the energy storage system comprises a connector, the connector is arranged on one side of the module along the second direction, an opening of the connector is arranged to face a third direction, and the third direction is perpendicular to the first direction and the second direction respectively.

[0017] The beneficial effects of the utility model lie in:

[0018] The energy storage system comprises a box, a flow guide row, at least two modules and a plurality of supports, the box is provided with a containing cavity, the plurality of modules are arranged in the containing cavity and arranged along a first direction, the flow guide row is arranged on one side of the modules along a second direction and extends along the first direction, the flow guide row is electrically connected with the plurality of modules, the first direction and the second direction are perpendicular to each other and are located on a horizontal plane of the box, and the supports are arranged on the modules and are arranged along the first direction.

[0019] In practical applications, the flow guide row needs to be connected with a plurality of modules to realize effective distribution and management of current (in this embodiment, a plurality of modules are connected in series through the flow guide row as an example). However, due to the long length and large span of the flow guide row, the connection is prone to uneven and large mechanical stress, thereby affecting the reliability of the connection and the overall performance of the system. Such stress concentration can cause the flow guide row to bend or the connection point to loosen, thereby causing electrical failure or reducing system efficiency. In the present application, a plurality of supports are arranged, which are arranged on the modules and are arranged in the first direction. In this way, the supports can effectively support the flow guide row and disperse the mechanical stress received by the flow guide row to each support point, thereby reducing the stress received by each connection point. In this way, the stress condition of the flow guide row is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0021] Figure 1 is a structural schematic view of a display box provided by the embodiment of the present application;

[0022] Figure 2 is a structural schematic view of the inside of a display box provided by the embodiment of the present application;

[0023] Figure 3 is a structural schematic view of a module provided by the embodiment of the present application; Figure 2 is a local enlarged schematic view of region A in the above figure;

[0024] Figure 4 is a local structural schematic view of a module provided by the embodiment of the present application;

[0025] Figure 5 is a local enlarged schematic view of region B in the above figure; Figure 4 ​

[0026] Figure 6 is a cross-sectional structure schematic view provided by the embodiment of the utility model for showing the support and the fastener connection mode;

[0027] Figure 7 is a structure schematic view provided by the embodiment of the utility model for showing D1 and D2;

[0028] Figure 8 is a structure schematic view provided by the embodiment of the utility model for showing the inside of the box body;

[0029] Figure 9 is a structure schematic view provided by the embodiment of the utility model for showing the inside of the box body; Figure 7 is a local enlarged schematic view of the area C in the embodiment of the utility model.

[0030] Explanation of reference numerals:

[0031] 20, box body; 21, containing cavity; 30, module; 31, electric core group; 32, end plate; 321, clamping part; 322, first connecting part; 3221, containing hole; 323, first part; 324, second part; 325, third part; 40, flow guide row; 50, support; 51, first groove; 52, second groove; 53, positioning groove; 60, fastener; 61, screw rod; 62, limiting part; 70, reinforcing part; 71, protection part; 72, second connecting part; 80, elastic part; 90, joint; 100, first direction; 110, second direction; 120, third direction. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Please refer to Figures 1 to 3 shown, Figure 1 is a structure schematic view provided by the embodiment of the utility model for showing the box body, Figure 2 is a structure schematic view provided by the embodiment of the utility model for showing the inside of the box body, Figure 3 is a structure schematic view provided by the embodiment of the utility model for showing the inside of the box body; Figure 2 is a local enlarged schematic view of the area C in the embodiment of the utility model.

[0034] The utility model discloses an energy storage system, comprising: box 20, diversion row 40, at least two module 30 and at least one support 50, form the containing cavity 21 in box 20, a plurality of module 30 set up in containing cavity 21, and along the first direction 100 arrangement, diversion row 40 set up in the one side of module 30 along the second direction 110, and along the first direction 100 extension, diversion row 40 is connected with a plurality of module 30 simultaneously, the first direction 100 and the second direction 110 are perpendicular to each other, and the first direction 100 and the second direction 110 are located on the horizontal plane of box 20, support 50 sets up on module 30, and a plurality of support 50 are arranged along the first direction 100, and diversion row 40 is simultaneously lapped on a plurality of support 50.

[0035] In practical applications, the diversion row 40 needs to connect multiple modules 30 to achieve effective distribution and management of current (in this embodiment, multiple modules 30 are connected in series through the diversion row 40 as an example). However, due to the length of the diversion row 40 being relatively long and the span being relatively large, the connection is prone to uneven and large mechanical stress, thereby affecting the reliability of the connection and the overall performance of the system. This stress concentration can cause the diversion row 40 to bend or the connection point to loosen, thereby causing electrical failure or reducing system efficiency. In this application, multiple supports 50 are provided, which are spaced apart on the modules 30 and lapped with the diversion row 40. In this way, the supports 50 can effectively support the diversion row 40, dispersing the mechanical stress it receives to each support point, thereby reducing the stress received by each connection point. In this way, the stress condition of the diversion row 40 is significantly improved.

[0036] In this embodiment, the number of supports 50 is the same as the number of modules 30, and the supports 50 and modules 30 are one-to-one correspondingly arranged, i.e., one module 30 is provided with one support 50. In other embodiments of the application, multiple supports 50 can be provided on one module 30 to further improve the stability of the diversion row 40.

[0037] In one embodiment, referring to Figure 5 and Figure 6 , the support 50 is provided with a first slot 51 and a second slot 52, the opening direction of the first slot 51 and the opening direction of the second slot 52 are opposite and are both protrudingly arranged along the third direction 120, and the third direction 120 is perpendicular to the first direction 100 and the second direction 110, respectively.

[0038] In practical applications, by setting the first groove 51 and the second groove 52 with opposite opening directions on the bracket 50 and making them protrude along the third direction 120, the bracket 50 can be bent at multiple positions. This multi-bending design greatly improves the structural strength of the bracket 50. Because the sheet metal part is subjected to multiple bending, its deformation resistance and load-bearing capacity are significantly enhanced, making the energy storage system more stable and reliable in use, thereby better limiting the displacement and vibration of the flow guide row 40 and better supporting the flow guide row 40. Taking this embodiment as an example, the opening of the first groove 51 is upward, the greater the depth of the first groove 51, the higher the end of the bracket 50 for supporting the flow guide row 40; the opening of the second groove 52 is downward, the greater the depth of the second groove 52, the lower the end of the bracket 50 for supporting the flow guide row 40, the opening directions of the first groove 51 and the second groove 52 are different, which is to offset the influence of multiple bending on the height of the end of the bracket 50 for supporting the flow guide row 40.

[0039] Further, referring to Figure 6 , the bracket 50 is provided with a positioning groove 53, and the energy storage system includes an elastic member 80, which is arranged inside the positioning groove 53, and the flow guide row 40 is arranged between the elastic member 80 and the side wall of the positioning groove 53, and the elastic member 80 is used to clamp the flow guide row 40, and the positioning groove 53 is located on the side of the second groove 52 away from the first groove 51.

[0040] In practical applications, by setting the elastic member 80 in the positioning groove 53, the flow guide row 40 can be effectively clamped to ensure its stability and precise positioning during use. The use of the elastic member 80 can adapt to the slight size changes or position adjustments of the flow guide row 40 while providing sufficient fixing force. The arrangement of the positioning groove 53 relative to the first groove 51 and the second groove 52 ensures the compactness and functionality of the system structure, and also provides convenience for the installation and maintenance of the flow guide row 40. This design further improves the overall reliability and operational convenience of the energy storage system.

[0041] In addition, by effectively clamping the flow guide row 40 with the elastic member 80, the vibration of the flow guide row 40 during operation can be significantly reduced. The flexible clamping ability provided by the elastic member 80 can absorb and buffer external vibrations and impacts received by the flow guide row 40, thereby reducing noise and vibration transmission during system operation. This vibration reduction effect improves the overall reliability and durability of the energy storage system, and also helps to prolong the service life of the flow guide row 40 and related components.

[0042] In this embodiment, the elastic member 80 can be made of materials such as silicone, polyurethane, and EVA foam.

[0043] Optionally, referring to Figure 6 , the depths of the first groove 51 and the second groove 52 are different.

[0044] In practical applications, the third direction 120 is the height direction of the energy storage system. By virtue of the different depths of the first groove 51 and the second groove 52, the position of the support 50 directly below the flow guide 40 can be changed. Specifically, when the opening of the first groove 51 faces upward and the opening of the second groove 52 faces downward, the greater the depth of the first groove 51, the lower the position of the contact point between the flow guide 40 and the support 50, and the greater the depth of the second groove 52, the higher the position of the contact point between the flow guide 40 and the support 50. Therefore, according to the width of the support 50, the position of the support 50 directly below the flow guide 40 can be adjusted by adjusting the depths of the first groove 51 and the second groove 52, so that the support 50 can support the flow guide 40.

[0045] In an embodiment, referring to Figure 7 When there are at least two supports 50, the distance between the adjacent two supports 50 in the first direction 100 is D1, and the length of the flow guide 40 is D2, 0.02≤D1 / D2≤0.13.

[0046] In the present application, the number of modules 30 is two, and each module 30 is fixed with a support 50 by a rivet, D1 / D2=0.057.

[0047] In an embodiment, referring to Figure 2 and Figure 3 The module 30 includes a cell group 31 and two end plates 32. The cell group 31 is composed of a plurality of cells arranged along the second direction 110, and the two end plates 32 are clamped to the opposite sides of the cell group 31 along the second direction 110. The support 50 is arranged on the side of the end plate 32 away from the cell group 31, and the support 50 is connected to the end plate 32. The flow guide 40 is electrically connected to the plurality of cell groups 31 at the same time, so as to electrically connect the plurality of cell groups 31.

[0048] In practical applications, the end plate 32 is mainly used to support and fix the plurality of cells. On the one hand, it provides horizontal support to prevent the cells from moving in the first direction 100. On the other hand, it provides vertical clamping force to ensure that the cells are stable in the box 20, thereby ensuring the stability of the module 30 in the box 20. The end plate 32 also serves as a mounting carrier for the support 50. This integrated design means that no additional mounting components or structures are needed to fix the support 50, thereby reducing the complexity of the design and the manufacturing cost. Since the end plate 32 has both support and mounting functions, the overall system design is more compact. This compact design not only saves space, but also enables the system to achieve higher energy density in a limited volume.

[0049] In the present embodiment, the end plate 32 is connected to the box 20, and the module 30 is further provided with a steel band for fixing the opposite two end plates 32. The steel band is arranged around the periphery of the cell group 31 and the two end plates 32 to bind the cell group 31 and the two end plates 32.

[0050] Further, referring to Figure 4 and Figure 5 , the end plate 32 includes a clamping portion 321 for clamping the battery cell group 31 and a first connecting portion 322 disposed on a side of the clamping portion 321 away from the battery cell group 31, and the first connecting portion 322 extends in the second direction 110 and protrudes from the clamping portion 321. The energy storage system includes fasteners 60 disposed in the third direction 120, and the fasteners 60 are respectively connected with the first connecting portion 322 and the box 20, and the third direction 120 is perpendicular to the first direction 100 and the second direction 110, respectively.

[0051] In practical applications, in the design of the energy storage system, by disposing the fasteners 60 in the third direction 120, a series of technical effects are optimized. First, by disposing the fasteners 60 in the third direction 120 (perpendicular to the direction in which the clamping portion 321 and the first connecting portion 322 of the end plate 32 extend), the fasteners 60 are disposed in the thickness direction of the first connecting portion 322 and connected to the box 20, thereby significantly reducing the length of the fasteners 60. Shorter fasteners 60 have higher stiffness compared to longer structures, as the potential bending and deformation possibilities are reduced. This enhanced stiffness allows the fasteners 60 to better maintain the structural integrity and stability of the system when subjected to vibrations or external impacts, reducing the risk of loosening or failure.

[0052] In addition, the reduction in the length of the fasteners 60 directly affects the space utilization efficiency inside the box 20. The reduced length of the fasteners 60 means that less space is occupied inside the box 20, thereby providing more available space for electrical wiring. This not only simplifies the wiring process, but also reduces the risk of cable congestion and potential electrical interference. Overall, by optimizing the direction and length of the fasteners 60, the energy storage system has been significantly improved in terms of structural stability and space utilization efficiency, ensuring the reliability and efficiency of the energy storage system.

[0053] Optionally, referring to Figure 5 and Figure 6 , the energy storage system includes reinforcing members 70, the first connecting portion 322 is hollow and has a receiving hole 3221 extending through the first connecting portion 322 in the third direction 120, the reinforcing members 70 are disposed in the receiving hole 3221 and connect the opposite two side walls of the first connecting portion 322, and the fasteners 60 pass through the reinforcing members 70 and are connected to the box 20.

[0054] In practical applications, the first connecting part 322 is designed as a hollow structure, which can effectively reduce the weight of the end plate 32 and the material cost, but will result in a decrease in the strength of the first connecting part 322. The reinforcing member 70 can provide additional support and stability without significantly increasing the overall weight. By being threaded into the hollow accommodating hole 3221 and connecting the opposite two side walls of the first connecting part 322, it can effectively disperse and bear external loads, enhancing the strength of the first connecting part 322 around the accommodating hole 3221. In this way, even in harsh use environments, the energy storage system can maintain good mechanical properties and stability.

[0055] In the present embodiment, the reinforcing member 70 is a column with an elliptical cross-section. In other embodiments, the reinforcing member 70 can be a table, a column or a pyramid with a rectangular, irregular or other shape cross-section.

[0056] Further, referring to Figure 5 and Figure 6 The reinforcing member 70 includes a protection part 71 and a second connecting part 72, the second connecting part 72 is threaded into the accommodating hole 3221 and connects the opposite two side walls of the first connecting part 322, and the protection part 71 and the second connecting part 72 are connected and abut against the first connecting part 322. The fastener 60 includes a screw rod 61 and a limiting part 62, the screw rod 61 is respectively threadedly connected with the reinforcing member 70 and the box body 20, the limiting part 62 is connected to one end of the screw rod 61, the limiting part 62 is arranged on the side of the protection part 71 away from the second connecting part 72 and abuts against the protection part 71, and the projection of the limiting part 62 on the plane where the protection part 71 is located is inside the protection part 71.

[0057] In practical applications, the screw rod 61 is threadedly connected with the second connecting part 72 and the box body 20 at the same time to connect the first connecting part 322 and the box body 20. During assembly, the protection part 71 plays a limiting role to ensure that the screw rod 61 can be installed in place. During the operation of the energy storage system, the limiting part 62 exerts force on the first connecting part 322 by contacting the protection part 71. Since the contact area between the protection part 71 and the first connecting part 322 is large, compared with the direct contact between the limiting part 62 and the first connecting part 322, this design effectively reduces the stress concentration phenomenon. By increasing the contact area, the protection part 71 can more evenly disperse the stress applied to the first connecting part 322, thereby significantly reducing the possibility of deformation at the connecting part. This design strategy is particularly suitable for application scenarios that require both lightweight and high reliability, ensuring that the connecting part can maintain its structural integrity and functional stability under various working conditions.

[0058] Optionally, referring to Figure 5 and Figure 6The end plate 32 comprises a first portion 323, which is connected to the first connecting portion 322 and the clamping portion 321 respectively, and is inclined to the first connecting portion 322 and the clamping portion 321.

[0059] In practical applications, the first portion 323 in the end plate 32 can significantly improve the integrity of the clamping portion 321 and the first connecting portion 322. Specifically, the first portion 323 is connected to the clamping portion 321 and the first connecting portion 322 in an inclined manner, which can effectively disperse stress, reduce local stress concentration, and reduce the possibility of deformation. This inclined connection also optimizes the direction of force transmission, so that the force can be transmitted between the clamping portion 321 and the first connecting portion 322 through the extension direction of the first portion 323, so that the first portion 323 can share part of the force and improve the structural strength of the end plate 32.

[0060] Optionally, referring to Figure 5 and Figure 6 The end plate 32 comprises a second portion 324 and a plurality of third portions 325 arranged in the clamping portion 321. The opposite ends of the second portion 324 are connected to the opposite side walls of the clamping portion 321 respectively, and the second portion 324 is arranged perpendicular to the side wall of the clamping portion 321. The opposite ends of the third portion 325 are connected to the opposite side walls of the clamping portion 321 respectively, and the third portion 325 is arranged inclined to the direction of the side wall of the clamping portion 321. The plurality of third portions 325 are connected alternately at the head and tail.

[0061] In practical applications, the second portion 324 and the plurality of third portions 325 effectively divide the space inside the clamping portion 321 into a plurality of columnar spaces with triangular cross sections. This structure significantly improves the mechanical strength of the clamping portion 321 and the overall mechanical properties. Specifically, the vertical arrangement of the second portion 324 mainly plays a supporting role, limiting the deformation of the clamping portion 321 in the vertical direction, and ensuring that the structure remains stable under external force. The inclined arrangement of the third portion 325 plays a role in dispersing force, so that the force applied to the clamping portion 321 can be more evenly distributed, thereby reducing local stress concentration and improving the anti-deformation ability and stability of the overall structure. Through this design, the energy storage system can exhibit higher reliability and durability in various applications.

[0062] In an embodiment, referring to Figure 8 and Figure 9 The energy storage system comprises a joint 90, which is arranged on one side of the module 30 along the second direction 110. The opening of the joint 90 is arranged towards the third direction 120, which is perpendicular to the first direction 100 and the second direction 110 respectively.

[0063] In practical application, the third direction 120 is the thickness direction of the energy storage system, and such design makes the opening of the connector 90 face upward, which significantly improves the convenience of the operator when plugging or unplugging. By setting the connector 90 upward, the operator does not need to perform the connection or disconnection operation at a narrow or inconvenient angle, thereby reducing the risk of misoperation and improving the ease of use and maintenance efficiency of the equipment.

[0064] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0065] It should also be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or can have a centering element in between. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a centering element.

[0066] In addition, the descriptions involving "first", "second", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0067] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An energy storage system, characterized in that, include: A housing, wherein a receiving cavity is formed within the housing; At least two modules are disposed in the receiving cavity and arranged along a first direction; A flow guide is disposed on one side of the module along the second direction and extends along the first direction. The flow guide is electrically connected to multiple modules simultaneously. The first direction and the second direction are perpendicular to each other and are located on the horizontal plane of the housing. At least one bracket is disposed on the module, and a plurality of brackets are arranged at intervals along the first direction, with the flow guide simultaneously overlapping the plurality of brackets.

2. The energy storage system according to claim 1, characterized in that, The bracket has a first groove and a second groove. The opening direction of the first groove is opposite to that of the second groove, and both protrude along a third direction, which is perpendicular to the first direction and the second direction, respectively.

3. The energy storage system according to claim 2, characterized in that, The bracket has a positioning groove, the energy storage system includes an elastic element, the elastic element is disposed inside the positioning groove, the flow guide is disposed between the elastic element and the side wall of the positioning groove, the elastic element is used to clamp the flow guide, and the positioning groove is located on the side of the second groove away from the first groove.

4. The energy storage system according to claim 2, characterized in that, The first groove and the second groove have different depths.

5. The energy storage system according to claim 1, characterized in that, When there are at least two brackets, in the first direction, the distance between two adjacent brackets is D1, the length of the guide is D2, and 0.02≤D1 / D2≤0.

13.

6. The energy storage system according to claim 1, characterized in that, The number of brackets is the same as the number of modules, and the brackets and modules are arranged in a one-to-one correspondence, with the spacing between the multiple brackets being the same.

7. The energy storage system according to any one of claims 1 to 6, characterized in that, The module includes a battery cell assembly and two end plates. The battery cell assembly is composed of multiple battery cells arranged along the second direction, and the two end plates are respectively clamped to opposite sides of the battery cell assembly along the second direction. The bracket is disposed on the side of the end plate away from the cell assembly, and the bracket is connected to the end plate. The current guide is electrically connected to multiple cell assemblies simultaneously, thereby electrically connecting multiple cell assemblies.

8. The energy storage system according to claim 7, characterized in that, The end plate includes a clamping part and a first connecting part. The clamping part is used to clamp the battery cell assembly. The first connecting part is disposed on the side of the clamping part away from the battery cell assembly, and the first connecting part extends out of the clamping part along the second direction. The energy storage system includes fasteners arranged along a third direction. The fasteners are connected to the first connecting part and the housing respectively, and the third direction is perpendicular to the first direction and the second direction respectively.

9. The energy storage system according to claim 8, characterized in that, The energy storage system includes a reinforcement component. The first connecting part is hollow and has a receiving hole that penetrates the first connecting part in the third direction. The reinforcement component passes through the receiving hole and connects to the opposite side walls of the first connecting part. The fastener passes through the reinforcement component and connects to the housing.

10. The energy storage system according to claim 9, characterized in that, The reinforcement includes a protective part and a second connecting part. The second connecting part passes through the receiving hole and connects to the opposite side walls of the first connecting part. The protective part and the second connecting part are connected and abut against the first connecting part. The fastener includes a screw and a limiting part. The screw is threadedly connected to the reinforcing part and the housing respectively. The limiting part is connected to one end of the screw. The limiting part is located on the side of the protective part away from the second connecting part and abuts against the protective part. The projection of the limiting part onto the plane of the protective part is inside the protective part.

11. The energy storage system according to claim 8, characterized in that, The end plate includes a first part, which is connected to the first connecting part and the clamping part respectively, and is inclined to the first connecting part and the clamping part.

12. The energy storage system according to claim 8, characterized in that, The end plate includes a second part and a plurality of third parts disposed in the clamping part. The two opposite ends of the second part are respectively connected to the opposite side walls of the clamping part. The second part is disposed perpendicular to the side walls of the clamping part. The two opposite ends of the third part are respectively connected to the opposite side walls of the clamping part. The third part is disposed inclined to the direction of the side walls of the clamping part. The plurality of third parts are connected end to end alternately.

13. The energy storage system according to any one of claims 1 to 6, characterized in that, The energy storage system includes a connector, which is disposed on one side of the module along the second direction, and the opening of the connector is disposed facing a third direction, which is perpendicular to the first direction and the second direction respectively.

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