Energy storage system

Abstract

The utility model relates to the technical field of batteries, in particular to an energy storage system which comprises a plurality of battery box bodies sequentially stacked in the height direction, locking units and bearing components connected between every two adjacent battery box bodies. The bearing members are respectively arranged on the outer walls of the two sides of the battery box body in the length direction and / or the width direction and at least comprise supporting parts and supporting parts; the supporting parts are configured to be attached to the outer walls of the same sides of the two adjacent battery box bodies and are locked with the two adjacent battery box bodies through the locking units; the at least two bearing parts are arranged on the side, attached to the battery box body, of the supporting part at intervals in the height direction; the lowermost one of the supporting parts is configured to be in compression joint with the lower one of the two adjacent battery box bodies, so that the problems that enough gaps exist between the traditional sequentially stacked battery box bodies, and the mounting and dismounting processes are relatively inconvenient are solved; while the stacking effect is ensured, the constraint of a traditional rack cabinet is effectively eliminated, and the manufacturing cost of the energy storage system is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to an energy storage system. Background Art

[0002] With the rapid development of energy storage technology, batteries, as a key component of energy storage systems, are widely used in daily life and industrial production. Due to the low voltage of a single cell, multiple cells are typically installed in series within a battery box. Multiple battery boxes are then connected in series or in parallel to form an energy storage cabinet to meet usage requirements. In existing energy storage systems, to expand capacity, multiple battery packs are typically stacked vertically, and then multiple battery boxes are connected to achieve high capacity. As a result, in recent years, the demand for simple stacking designs for plug-in boxes has become increasingly demanding.

[0003] In energy storage products, battery cases are usually stacked in sequence along the height direction and then fixed with connecting components. Generally, multiple battery cells and internal unit devices are installed inside the battery case, so the overall weight of the battery case is relatively large, and different workers need to cooperate to lift the battery case for transportation and installation. In addition, since the top and bottom surfaces of adjacent battery cases are in contact with each other, it is not convenient for workers to reach the bottom of the battery case, which makes the actual installation and disassembly process more inconvenient. If racks and cabinets are used to place each battery case separately, the racks and cabinets occupy a large area, the complex structure is not conducive to reducing the production cost of the energy storage system, and it is difficult to meet the battery stacking requirements of the energy storage system. Utility Model Content

[0004] The purpose of the utility model is to provide an energy storage system, which aims to solve the problem that in existing energy storage systems, battery boxes are stacked in sequence, making it inconvenient for workers to reach the bottom of the battery boxes for transportation and disassembly. If a rack cabinet installation method is adopted, the structure is complex and the cost is high.

[0005] To achieve one of the aforementioned objectives, according to one aspect of the present application, there is provided an energy storage system, characterized in that it includes a plurality of battery boxes stacked in sequence along a height direction, a locking unit, and a supporting member connected between two adjacent battery boxes; the supporting member is respectively arranged on both side outer walls of the battery box along the length direction and / or the width direction and includes at least:

[0006] The support portion is configured to fit on the outer walls of two adjacent battery boxes on the same side and be locked with the two by the locking unit;

[0007] The supporting parts are arranged at intervals along the height direction on the side where the supporting part and the battery box are in contact, and are configured in number of at least two;

[0008] The lowermost one of the supporting parts is configured to be pressed against the lower one of the two adjacent battery boxes; the uppermost one of the supporting parts is configured to be pressed against the upper one of the two adjacent battery boxes.

[0009] In addition to one or more of the above, or as an alternative, in another embodiment, the lowermost one of the supporting portions is pressed against the top surface of the lower one of the two adjacent battery boxes.

[0010] In addition to one or more of the above, or as an alternative, in another embodiment, the top cover of the battery box is provided with a waterproof cover, and a gap is formed between the waterproof cover and the top surface of the box, and the lowest one of the supporting parts penetrates into the gap between the lower one of the two adjacent battery boxes and fits against the top surface of the box.

[0011] In addition to one or more of the above, or as an alternative, in another embodiment, a guide portion is formed on the periphery of the support portion, and the guide portion is inclined toward a side of the support portion away from the supporting portion.

[0012] In addition to one or more of the above, or as an alternative, in another embodiment, each of the support portions is sequentially and spaced apart from each other with two supporting portions being overlapped in projection along the height direction.

[0013] In addition to one or more of the above, or as an alternative, in another embodiment, the supporting portion of each supporting member is formed with two openings spaced sequentially along the height direction, and the two supporting portions are respectively formed at one end of the two openings close to each other.

[0014] In addition to one or more of the above, or as an alternative, in another embodiment, a through opening is formed on the supporting portion of each supporting member and is arranged to pass through in the thickness direction, and the two supporting portions are respectively formed at both ends of the through opening in the height direction.

[0015] In addition to one or more of the above, or as an alternative, in another embodiment, the locking unit includes: a threaded hole opened on the outer wall of the battery case, at least two light holes opened on the support part and corresponding to the threaded holes on two adjacent battery cases, and screws correspondingly connected to the threaded holes and the light holes to fix the support part to the outer wall of the battery case.

[0016] In addition to one or more of the above, or as an alternative, in another embodiment, the light holes are configured as two and the two are arranged opposite to each other in the height direction, one of the light holes is opened through one end of the support part close to the uppermost supporting part, and the other is opened through one end of the support part close to the lowermost supporting part, and the threaded holes are configured as two and are respectively opened on the outer walls of two adjacent battery cases.

[0017] In addition to one or more of the above, or as an alternative, in another embodiment, the supporting members are symmetrically arranged along the outer walls on both sides of the battery box in the length direction and / or width direction.

[0018] In addition to one or more of the above, or as an alternative, in another embodiment, two supporting members are provided on both side outer walls of each battery box along the length direction and / or the width direction.

[0019] In addition to one or more of the above, or as an alternative, in another embodiment, the two supporting members located on the outer wall on the same side of each battery case are respectively arranged at both ends of the battery case, and the support portion on one of the supporting members at the front end along the pushing direction of the battery case is provided with a blocking portion for limiting the battery case.

[0020] In addition to one or more of the above, or as an alternative, in another embodiment, the blocking portion is configured as a blocking rib integrally connected to the supporting portion and fits against the outer wall of the battery box, and an angle is formed between the blocking rib and the supporting portion.

[0021] In addition to one or more of the above, or as an alternative, in another embodiment, the supporting member is formed by sheet metal bending and welding, or stamping, or die-casting.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The supporting portion of the supporting member can be fitted to the outer wall of the same side of two adjacent battery boxes, and the two adjacent battery boxes can be fixed together by a locking unit, and at least two supporting portions arranged at intervals on the supporting portion can separate the two adjacent battery boxes. Therefore, a gap is reserved between the two adjacent supporting portions, so that the two adjacent battery boxes can be separated, making it convenient for workers to put their hands into the gap between the two adjacent battery boxes to facilitate the handling of the battery boxes during installation and disassembly, thereby avoiding the problem of insufficient gap between the traditional battery boxes stacked in sequence, which makes the installation and disassembly process more inconvenient; at the same time, due to the simple structure of the supporting member itself, while ensuring the stacking effect, it effectively gets rid of the constraints of the traditional rack cabinet, thereby reducing the manufacturing cost of the energy storage system.

[0024] 2. When a waterproof cover is installed on the top of the battery box, the uppermost supporting part can be pressed onto the upper battery box, and the lowermost supporting part can be inserted into the gap between the top surface of the battery box and the waterproof cover, and fit with the top surface of the box, thereby avoiding the upper battery box being directly pressed onto the waterproof cover of the lower battery box, and further avoiding deformation caused by pressure on the top waterproof cover. While solving the above technical problems, it can meet the stacking requirements of battery boxes in outdoor energy storage systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The disclosure of this application will be more easily understood with reference to the accompanying drawings, which are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0026] In the picture:

[0027] Figure 1 A three-dimensional structural diagram of an energy storage system provided by the utility model;

[0028] Figure 2 This is a three-dimensional structural diagram of a supporting component in one embodiment of the present utility model;

[0029] Figure 3 for Figure 2 A three-dimensional structural diagram of the supporting member from another perspective;

[0030] Figure 4 This is a three-dimensional structural diagram of another embodiment of the present invention in which the supporting member is provided with a blocking portion;

[0031] Figure 5 for Figure 4 A three-dimensional structural diagram of the supporting member from another perspective;

[0032] Figure 6 This is a three-dimensional structural diagram of the energy storage system provided by the present invention when the battery box is not provided with a waterproof cover;

[0033] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0034] Figure 8 A three-dimensional structural diagram of the energy storage system provided by the present invention when the battery box is provided with a waterproof cover;

[0035] Figure 9 for Figure 8 A partial enlarged view of point A in the middle.

[0036] In the accompanying drawings: 1 battery box, 2 locking unit, 21 threaded hole, 22 light hole, 23 screw, 3 supporting member, 31 support part, 32 supporting part, 33 guide part, 34 opening, 35 blocking part, 4 waterproof cover, 5 handle. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0038] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0039] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0040] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0041] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0042] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0043] In existing energy storage products, multiple battery boxes are usually stacked together in sequence along the height direction in order to expand the capacity of the energy storage system. Since the battery boxes are used indoors, there is no need to set up a waterproof top cover. Multiple stacked battery boxes will not affect the strength of the battery box itself. Therefore, they are widely used in energy storage products.

[0044] Since the overall weight of the battery box is large, different workers need to cooperate to lift the battery box for transportation and installation; and since the top and bottom surfaces of adjacent battery boxes are in contact with each other, it is not convenient for workers to touch the bottom of the battery box. Generally, only a handle is installed on one side of the battery box, so it is not convenient for workers on the other side to exert force without touching the bottom of the box, resulting in the actual installation and disassembly process being more inconvenient; and if a rack and cabinet are used to place each battery box separately, since the rack and cabinet occupy a large area and have a complex structure, it is not conducive to reducing the production cost of the energy storage system and it is difficult to meet the battery stacking requirements of the energy storage system. For this reason, the energy storage system of the present application is proposed.

[0045] Figure 1 This is a three-dimensional schematic diagram of an energy storage system according to the present application, refer to Figures 1 to 3 The energy storage system can be used for storing and releasing electric energy, and comprises: a plurality of battery cases 1 stacked in sequence along the height direction, a locking unit 2, and a supporting member 3 connected between two adjacent battery cases 1; the supporting member 3 is respectively arranged on the outer walls of the battery case 1 on both sides along the length direction and / or the width direction and comprises at least: a supporting portion 31 configured to be attached to the outer wall of the same side of the two adjacent battery cases 1 and locked with both by the locking unit 2, and at least two supporting portions 32 arranged at intervals along the height direction on the side where the supporting portion 31 is attached to the battery case 1; the lowermost one of the supporting portions 32 is configured to be pressed against the lower one of the two adjacent battery cases 1; the uppermost one of the supporting portions 32 is configured to be pressed against the upper one of the two adjacent battery cases 1.

[0046] Under this arrangement, the energy storage system described in this article is conveniently installed between the outer walls of both sides of two adjacent battery boxes 1 by setting a supporting member 3, and fixes the two adjacent battery boxes 1 by the locking unit 2; specifically, the support portion 31 can be fitted to the outer wall of the same side of the two adjacent battery boxes 1, and at least two supporting portions 32 spaced apart on the supporting portion 31 can separate the two adjacent battery boxes 1, so that a gap is reserved between the two adjacent supporting portions 32, so that the two adjacent battery boxes 1 can be separated, making it convenient for workers to put their hands into the gap between the two adjacent battery boxes 1, so as to facilitate the transportation of the battery boxes 1 during installation and disassembly, thereby avoiding the problem of insufficient gap between the traditional battery boxes 1 stacked in sequence, which makes the installation and disassembly process more inconvenient; at the same time, due to the simple structure of the supporting member 3 itself, while ensuring the stacking effect, it effectively gets rid of the constraints of the traditional rack cabinet, reduces the manufacturing cost of the energy storage system, and can meet the stacking requirements of the battery boxes 1 of the energy storage system.

[0047] It is not difficult to see that in this embodiment, the battery boxes 1 can be stacked in sequence along the height direction through the supporting members 3 mentioned above. By simply using the supporting members 3 installed on both sides of the battery box 1, different numbers of battery boxes can be stacked up and down. Compared with several conventional stacking schemes, the supporting members 3 of this application have more prominent advantages. They have a simple structure and low cost, and are more convenient to operate in practice, which can meet the stacking requirements of the battery boxes 1 of the outdoor energy storage system.

[0048] It should be noted that the supporting member 3 in the present application can be arranged along the outer walls on both sides of the length direction or width direction of the battery box 1, and of course can also be arranged on the outer walls on both sides of the length direction and width direction of the battery box 1 at the same time. Regarding its specific installation method, it can be selected according to the shape of the battery box 1 itself. As long as the stacking installation of the battery can be completed, this embodiment does not make any specific restrictions here.

[0049] The following will introduce further specific implementation or refinement and improvement process of the energy storage system through exemplary descriptions, so as to further improve the stacking performance of its battery box 1, or for other improvement considerations.

[0050] In one implementation of this embodiment, refer to Figure 6 and Figure 7 When the battery box 1 is in normal use, since there is no need to set a waterproof top cover on the battery box 1, the battery box 1 located on the upper side will not affect the strength of the battery box 1 located below. At this time, the lowest one of the supporting parts 32 is pressed against the top surface of the lower one of the two adjacent battery boxes 1.

[0051] It can be seen that the lowest one on the above-mentioned supporting part 32 is directly pressed onto the top surface of the battery box 1 below. While ensuring the structural stability of the battery box 1 itself, space for workers' fingers to be inserted is provided between two adjacent battery boxes 1, which makes it more convenient for workers to exert force when carrying, thereby ensuring the comfort of workers during construction.

[0052] It should be noted that in outdoor energy storage systems, since they need to cope with the outdoor environment, the battery box 1 needs to be waterproofed. Usually, a waterproof cover 4 is installed on the top of the battery box 1. Since the material and thickness of the waterproof cover 4 are different from those of the battery box 1, and its own thickness is relatively thin, the structural strength is weak. If the traditional battery stacking method is adopted, the battery packs are stacked together in sequence along the height direction. The waterproof cover 4 on the top of the battery box 1 is easily deformed due to the pressure of the upper battery box 1. This situation is most likely to occur on the lower battery box 1 when multiple battery boxes 1 are stacked together. The waterproof cover 4 that is deformed under force will affect the waterproof effect of the battery box 1, and will also cause the battery box 1 located above to tilt, thereby affecting the service life of the battery box 1.

[0053] Furthermore, if a battery rack or cabinet is used to install and place the battery box 1, the above-mentioned problem can be effectively overcome because the multiple supporting layers on the rack can be used to place the battery boxes 1 respectively. However, since the cost of the rack and the cabinet is relatively high and the overall volume is large, it is not conducive to reducing the cost of the energy storage system and is not convenient for transferring it during use. Therefore, another embodiment of the present application is proposed:

[0054] In another implementation of this embodiment, refer to Figure 8 and Figure 9 The top cover of the battery box 1 is provided with a waterproof cover 4, and a gap is formed between the waterproof cover 4 and the top surface of the box. The lowest one of the supporting parts 32 penetrates into the gap between the lower one of the two adjacent battery boxes 1 and fits against the top surface of the box.

[0055] It can be known that the supporting part 32 at the top can be pressed onto the upper battery box 1, and the supporting part 32 at the bottom can be inserted into the gap between the top surface of the battery box 1 and the waterproof cover 4, and fit with the top surface of the box, thereby avoiding the upper battery box 1 from being directly pressed onto the waterproof cover 4 of the lower battery box 1, and further avoiding the deformation of the top waterproof cover 4 caused by pressure. At the same time, due to the simple structure of the supporting member 3 itself, it effectively gets rid of the constraints of the rack cabinet while ensuring the stacking effect, and reduces the cost of the energy storage system while solving the above-mentioned technical problems, meeting the stacking requirements of the battery box 1 in the outdoor energy storage system.

[0056] In addition, under this arrangement, a spacing space is still reserved between two adjacent supporting portions 32 , thereby separating two adjacent battery boxes 1 , making it easier for workers to put their hands into the spacing between the two adjacent battery boxes 1 .

[0057] Illustratively, the waterproof cover 4 can be rotatably mounted on one end of the top surface of the battery case 1 by a hinge, and a gap for the support portion 32 to be inserted is formed between the top surface of the battery case 1 and the bottom surface of the waterproof cover 4, and a sealing ring for sealing the battery case 1 and the top cover is provided on the inner side of the waterproof cover 4; a plurality of battery cells connected in series and / or in parallel are installed inside the battery case 1; and are monitored and controlled by a battery management unit; the installation method between the waterproof cover 4 and the top surface of the battery case 1, as well as the specific structure inside the battery case 1, can be selected as needed, and this embodiment does not make specific limitations here.

[0058] In one case of this embodiment, reference Figure 2 and Figure 3 A guide portion 33 is formed on the outer periphery of the support portion 31 , and the guide portion 33 is inclined toward the side of the support portion 31 away from the supporting portion 32 .

[0059] It can be seen that by setting the guide part 33 on the outer periphery of the support part 31, the upper battery box 1 can be more easily installed and placed during the battery stacking process; in actual operation, the above-mentioned guide part 33 can be set as a side reinforcement rib to further enhance the strength of the supporting member 3.

[0060] In another case of this embodiment, reference Figure 2 and Figure 3 Each supporting portion 31 is sequentially and spaced apart from each other and two supporting portions 32 are overlapped in their projections along the height direction.

[0061] Specifically, the supporting portions 32 are arranged in sequence with two at intervals along the height direction, so that the stacking force of the upper and lower battery boxes 1 is more uniform, ensuring that the entire battery box 1 is stacked in sequence along the vertical direction.

[0062] Exemplarily, the thickness of the supporting portion 32 located below is smaller than the gap between the top surface of the battery box 1 and the waterproof cover 4. Under this arrangement, it can be effectively ensured that the supporting portion 32 located below can be attached to the top surface of the battery box 1, thereby ensuring more uniform force.

[0063] It should be noted that the above-mentioned supporting parts 32 can be arranged in sequence along the height direction, and the projections along the vertical direction overlap. Of course, they can also be arranged in sequence along the height direction, but the projections between them do not overlap. In this case, the spacing arrangement and support requirements of the battery box 1 can also be met. Therefore, the number and distribution of the supporting members 3 can be selected as needed, and this embodiment does not make specific restrictions here.

[0064] In one case of this embodiment, reference Figure 2 and Figure 3 The supporting portion 31 of each supporting member 3 is formed with two openings 34 that are sequentially spaced apart along the height direction, and the two supporting portions 32 are respectively formed at one end of the two openings 34 that are close to each other.

[0065] Under this arrangement, the two supporting parts 32 are formed by the support part 31 by hollowing out the material along the thickness direction and then bending it, and two openings are formed by hollowing out the material and bending at different positions along the height direction; through sheet metal bending and forming, while ensuring the strength and supporting function of the supporting member 3 itself, the weight and production cost of the supporting member 3 can be reduced, thereby effectively reducing the production cost of the energy storage system.

[0066] In another situation of this embodiment, a through opening (not shown in the drawings) is formed on the supporting portion of each supporting member and is arranged to pass through in the thickness direction, and the two supporting portions are respectively formed at both ends of the through opening in the height direction.

[0067] Under this arrangement, a through opening is formed by hollowing out the material in the support portion 31, and then the material is bent at the upper and lower ends of the through opening, thereby forming two supporting portions 32 at both ends of the through opening in the height direction; the two supporting portions 32 are respectively arranged at one end of the through opening close to each other, thereby ensuring the connection strength between the supporting portion 32 and the support portion 31.

[0068] In actual operation of this embodiment, reference Figure 1 、 Figure 2 and Figure 3 The locking unit 2 includes: a threaded hole 21 formed on the outer wall of the battery case 1; at least two light holes 22 formed on the support portion 31 and corresponding to the threaded holes 21 on two adjacent battery cases 1; and screws 23 correspondingly connected to the threaded holes 21 and the light holes 22 to fix the support portion 31 to the outer wall of the battery case 1.

[0069] It can be seen that by configuring the locking unit 2 as a threaded hole 21 , a light hole 22 and a screw 23 , it is convenient to quickly connect the support portion 31 and the outer wall of the battery box 1 together.

[0070] Specifically, refer to Figure 2 and Figure 3The light holes 22 are configured as two and are arranged opposite to each other in the height direction. One of the light holes 22 is opened through one end of the support part 31 close to the uppermost supporting part 32, and the other is opened through one end of the support part 31 close to the lowermost supporting part 32. The threaded holes 21 are configured as two and are respectively opened on the outer walls of two adjacent battery boxes 1.

[0071] It is not difficult to see that the two threaded holes 21 are respectively opened on the two adjacent battery boxes 1 and are used to be opposite to the two light holes 22. By using the two light holes 22 arranged in sequence along the height direction, a supporting member 3 only needs two light holes 22 and two screws 23 to complete the fixation. The overall cost is low, and the stacking is easier to position in the air, and the actual operation is also more convenient.

[0072] It should be noted that the screws 23 may also be fastened and fixed by bolts. Of course, the locking unit 2 may also adopt a snap-fit ​​structure to achieve the connection between the battery box 1 and the support portion 31 . This embodiment does not impose any specific restrictions here.

[0073] In actual operation of this embodiment, reference Figure 1 The supporting members 3 are symmetrically arranged along the outer walls on both sides of the battery box 1 in the length direction and / or width direction.

[0074] It can be seen that the above-mentioned supporting members 3 are arranged on the outer walls on both sides of the battery box 1 in the same direction, which is convenient for fixing and positioning two adjacent battery boxes 1. At the same time, the symmetrically distributed supporting members 3 ensure that the force on both sides of the battery box 1 is uniform, which makes it easier to stack multiple battery boxes 1.

[0075] It should be noted that, in actual operation, the above-mentioned supporting members 3 can be symmetrically distributed along the outer walls on both sides of the length direction or width direction of the battery box 1, or can be asymmetrically distributed relative to the outer walls on both sides in the same direction of the battery box 1. As long as they are arranged on the outer walls on both sides in the same direction of the battery box 1 to complete the connection and fixation between two adjacent battery boxes 1, this embodiment does not make specific limitations here; in addition, the above-mentioned supporting members 3 can also be set at both ends of the two directions of the battery box 1 at the same time, further increasing the stability of the stacking of the battery boxes 1 of the energy storage system.

[0076] In actual operation of this embodiment, reference Figure 1 Each battery pack is provided with two supporting members 3 on both side outer walls along the length direction and / or width direction.

[0077] It is not difficult to see that two supporting members 3 are provided on the outer walls on both sides of each battery pack, which makes it easier to support the battery box 1, avoids the battery box 1 from tilting during movement or transportation, and further increases the stability of the battery box 1 stacking.

[0078] On this basis, reference Figure 4 and Figure 5 The two supporting members 3 located on the outer wall on the same side of each battery box 1 are respectively arranged at both ends of the battery box 1, and the support part 31 on the front end of one of the supporting members 3 along the pushing direction of the battery box 1 is provided with a blocking part 35 for limiting the battery box 1.

[0079] It can be seen that the two supporting members 3 located on the outer wall on the same side are respectively arranged at both ends of the battery box 1, so that the battery box 1 is subjected to more uniform force when stacked, and the support part 31 on one of the supporting members 3 located at the front end of the battery pushing direction is provided with a blocking part 35 for limiting the battery box 1, which can be limited along the direction of battery pushing to prevent the battery from exceeding the optimal position when moving on the supporting part 32; while facilitating the installation of the battery box 1, the battery box 1 can also be limited in another direction during daily use, further improving the stability of the battery box 1 stacking on the energy storage system.

[0080] Furthermore, the blocking portion 35 is configured as a blocking rib integrally connected to the supporting portion 31 and capable of being fitted with the outer wall of the battery box 1 , with an angle formed between the blocking rib and the supporting portion 31 .

[0081] It is not difficult to see that the above-mentioned blocking portion 35 is set as a blocking rib that can fit the outer wall of the battery box 1. While limiting and blocking the battery box 1, it also improves the structural strength of the supporting portion 32, further improving the stability of the battery box 1 when subjected to external forces.

[0082] At the same time, the angle set between the retaining rib and the support portion 31 can be selected according to the specific structure of the battery case 1, so that the retaining rib can be smoothly attached to the outer wall of one side of the battery case 1 along the pushing direction, thereby positioning and limiting the battery case 1. The specific value of the above-mentioned angle can be set to 90 degrees, which corresponds to the battery case 1 with a cubic shape. The specific value of the above-mentioned angle can be set as needed, and this embodiment does not make any specific restrictions here.

[0083] In one case of this embodiment, reference Figure 1 、 Figure 6 and Figure 8 At least two handles 5 are provided on the outer wall of the battery box 1 on one side perpendicular to the pushing direction.

[0084] It can be seen that the handle 5 provided on the outer wall of the battery box 1 facilitates pushing the battery box 1 during actual operation, and also facilitates carrying the battery box 1 during daily use, making the installation and disassembly process more convenient and quick.

[0085] In another case of this embodiment, the supporting member 3 is formed by bending and welding sheet metal, or by stamping or die-casting.

[0086] It is not difficult to see that the supporting member 3 of the present application has a simple structure and the actual processing process is relatively easy. Specifically, the supporting portion 32 and the supporting portion 31 can be formed using methods including but not limited to the above-mentioned methods. Of course, other forming methods can also be used, and this embodiment does not make specific limitations here.

[0087] The above examples primarily illustrate the energy storage system of the present application. Although only some of the embodiments of the present application have been described, those skilled in the art will appreciate that the present application may be implemented in many other forms without departing from its subject matter and scope. Therefore, the examples and embodiments presented are to be considered illustrative rather than restrictive, and the present application may encompass various modifications and substitutions without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An energy storage system, characterized in that: The battery case comprises a plurality of battery cases stacked in sequence along the height direction, a locking unit, and a supporting member connected between two adjacent battery cases; the supporting member is respectively arranged on both side outer walls of the battery case along the length direction and / or the width direction and comprises at least: The support portion is configured to fit on the outer walls of two adjacent battery boxes on the same side and be locked with the two by the locking unit; The supporting parts are arranged at intervals along the height direction on the side where the supporting part and the battery box are in contact and are configured in number of at least two; The lowermost one of the supporting parts is configured to be pressed against the lower one of the two adjacent battery boxes; the uppermost one of the supporting parts is configured to be pressed against the upper one of the two adjacent battery boxes.

2. The energy storage system according to claim 1, characterized in that The lowest one of the supporting parts is pressed against the top surface of the lower one of the two adjacent battery boxes.

3. The energy storage system according to claim 1, characterized in that The top cover of the battery box is provided with a waterproof cover, and a gap is formed between the waterproof cover and the top surface of the box. The lowest one of the supporting parts penetrates into the gap between the lower one of the two adjacent battery boxes and fits against the top surface of the box.

4. The energy storage system according to claim 1, characterized in that A guide portion is formed on the outer periphery of the support portion, and the guide portion is inclined toward a side of the support portion away from the supporting portion.

5. The energy storage system according to claim 1, characterized in that: Each of the supporting portions is sequentially and spaced apart from each other with two supporting portions, and the projections of the two supporting portions along the height direction overlap.

6. The energy storage system according to claim 5, characterized in that: The supporting portion of each supporting member is formed with two openings that are sequentially spaced apart along the height direction, and the two supporting portions are respectively formed at one end of the two openings that are close to each other.

7. The energy storage system according to claim 5, characterized in that: A through opening is formed on the supporting portion of each supporting member and is arranged to penetrate the through opening in the thickness direction, and two supporting portions are respectively formed at two ends of the through opening in the height direction.

8. The energy storage system according to claim 1, characterized in that: The locking unit includes: a threaded hole opened on the outer wall of the battery box, at least two light holes opened on the support part and corresponding to the threaded holes on two adjacent battery boxes, and screws correspondingly connected to the threaded holes and the light holes to fix the support part to the outer wall of the battery box.

9. The energy storage system according to claim 8, characterized in that: The light holes are configured in two and are arranged opposite to each other in the height direction. One of the light holes is opened through one end of the support part close to the uppermost supporting part, and the other is opened through one end of the support part close to the lowermost supporting part. The threaded holes are configured in two and are respectively opened on the outer walls of two adjacent battery boxes.

10. The energy storage system according to claim 1, characterized in that: The supporting members are symmetrically arranged along the outer walls on both sides of the battery box in the length direction and / or width direction.

11. The energy storage system according to claim 1, characterized in that: Two supporting members are provided on both side outer walls of each battery box along the length direction and / or the width direction.

12. The energy storage system according to claim 11, characterized in that: The two supporting members located on the outer wall on the same side of each battery box are respectively arranged at both ends of the battery box, and the support part on the front end of one of the supporting members along the pushing direction of the battery box is provided with a blocking part for limiting the battery box.

13. The energy storage system according to claim 12, characterized in that: The blocking portion is configured as a blocking rib integrally connected to the supporting portion and capable of being fitted with the outer wall of the battery box, and an angle is formed between the blocking rib and the supporting portion.

14. The energy storage system according to claim 1, characterized in that The supporting member is formed by bending and welding sheet metal, or by stamping or die-casting.

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