Battery cabinet and energy storage system

Abstract

The embodiment of the utility model provides a battery cabinet and an energy storage system, the battery cabinet comprises a cabinet door, a cabinet body and at least one battery module, the cabinet door and the cabinet body define an accommodating cavity, and the accommodating cavity is used for accommodating the battery module; a battery and a cooling medium are arranged in the battery module, and the battery module is provided with a rolling structure, so that the battery module is assembled in the accommodating cavity through the rolling structure, and the battery module can be easily and conveniently assembled into the cabinet body through the rolling structure; therefore, the structural stability and the assembly efficiency of the battery cabinet can be improved.

Description

Technical Field

[0001] This application belongs to the technical field of power supply. Specifically, this application relates to a battery cabinet and an energy storage system. Background Art

[0002] With the rapid development of technology, as an important part of the energy storage system, the battery cabinet has been widely used in various fields. However, in the traditional battery cabinet design, the battery packs are usually directly fixed inside the cabinet body, and there are many inconveniences in the assembly and removal processes of the battery packs, resulting in relatively low loading and unloading efficiency of the battery cabinet. Summary of the Utility Model

[0003] An object of an embodiment of this application is to provide a new technical solution for a battery cabinet and an energy storage system.

[0004] According to the first aspect of the embodiments of this application, a battery cabinet is provided, including:

[0005] A cabinet door;

[0006] A cabinet body, the cabinet door and the cabinet body defining an accommodation cavity for accommodating battery modules; and

[0007] At least one battery module, with a battery and a cooling medium disposed inside the battery module, and the battery module being provided with a rolling structure so that the battery module is assembled in the accommodation cavity through the rolling structure.

[0008] Optionally, the battery module includes a battery module group, and the battery cabinet further includes:

[0009] Support beams disposed on the side walls of the cabinet body; and

[0010] Guide rails disposed on the support beams, and the battery module group being assembled on the guide rails through the rolling structure.

[0011] Optionally, the battery module includes a battery module group, and the battery cabinet further includes:

[0012] A frame disposed inside the cabinet body; and

[0013] Guide rails disposed on the side frames of the frame, and the battery module group being assembled on the guide rails through the rolling structure.

[0014] Optionally, the battery module includes a battery cluster, the rolling structure includes rollers, and the battery cabinet further includes:

[0015] A frame disposed inside the cabinet body, with at least one battery module group installed on the frame, and the frame and the battery module group combining to form the battery cluster; and

[0016] A guide rail is provided on the side frame of the frame. The bottom of the frame is provided with the rollers, and the battery cluster is assembled on the guide rail through the rollers.

[0017] Optionally, at least part of the battery is immersed in the cooling medium.

[0018] Optionally, the frame is detachably connected to the cabinet body.

[0019] Optionally, the rolling structure includes:

[0020] A row of needle rollers is provided on the guide rail. The bottom of the battery module has a stepped structure, and the stepped structure is slidably connected to the row of needle rollers.

[0021] Optionally, the stepped structure includes a first surface and a second surface. The first surface and the second surface are bent and connected, and the first surface is in contact with the row of needle rollers, and there is a gap between the second surface and the guide rail.

[0022] Optionally, the height range of the row of needle rollers is 3 mm to 8 mm.

[0023] Optionally, the guide rails are respectively provided on the opposite sides of the cabinet body, and the stepped structures are respectively provided on both sides of the bottom of the battery module. Each stepped structure is slidably connected to the row of needle rollers on one of the guide rails.

[0024] Optionally, a stop portion is further provided at the end of the guide rail, and a first limiting portion is provided on the battery pack. The stop portion is used to form a stop against the first limiting portion.

[0025] Optionally, one of the first limiting portion and the stop portion is a protrusion, and the other of the first limiting portion and the stop portion is a groove adapted to the protrusion.

[0026] Optionally, an auxiliary structure is further included. The auxiliary structure is connected to the frame and / or the battery module, and the auxiliary structure is used to limit the battery module.

[0027] Optionally, the auxiliary structure includes a first cross beam. The first cross beam has a second limiting portion, and the bottom of the battery module has an assembling portion. The second limiting portion can limit the assembling portion.

[0028] Optionally, the auxiliary structure further includes a second cross beam assembly. The second cross beam assembly is located on the side of the battery module away from the first cross beam, and the second cross beam assembly is connected to the frame and / or the battery module.

[0029] Optionally, the second crossbeam assembly further includes a support block disposed on the second crossbeam and connected to the assembly portion.

[0030] Optionally, the guide rail is opposite to the side edge position of the battery module, and a plurality of the battery modules are arranged along the height direction of the battery cabinet.

[0031] According to a second aspect of the embodiments of the present application, there is provided an energy storage system including at least one battery cabinet as described in the first aspect.

[0032] One technical effect of the present application is that:

[0033] The embodiments of the present application provide a battery cabinet including a cabinet door, a cabinet body, and at least one battery module. The cabinet door and the cabinet body define a receiving cavity for receiving the battery module. The battery module is internally provided with a battery and a cooling medium, and the battery module is provided with a rolling structure so that the battery module is assembled into the receiving cavity through the rolling structure, enabling the battery module to be easily and conveniently assembled into the cabinet body through the rolling structure, thereby improving the structural stability and assembly efficiency of the battery cabinet.

[0034] Other features and advantages of the present application will become clear through the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present application and, together with the description, are used to explain the principles of the present application.

[0036] Figure 1 A schematic diagram of a battery cabinet provided by an embodiment of the present application;

[0037] Figure 2 Another schematic diagram of a battery cabinet provided by an embodiment of the present application;

[0038] Figure 3 Another schematic diagram of a battery cabinet provided by an embodiment of the present application;

[0039] Figure 4 is Figure 3 A partial enlarged view of part A in

[0040] Figure 5 A schematic diagram of a cabinet body provided by an embodiment of the present application;

[0041] Figure 6 is Figure 5 A partial enlarged view of part B in

[0042] Figure 7 is Figure 5 a partial enlarged view at position C in

[0043] Figure 8 a schematic diagram of a battery module provided by an embodiment of the present application;

[0044] Figure 9 another schematic diagram of a battery module provided by an embodiment of the present application;

[0045] Figure 10 is Figure 9 a partial enlarged view at position D in

[0046] Figure 11 is Figure 9 a partial enlarged view at position E in

[0047] Figure 12 yet another schematic diagram of a battery cabinet provided by an embodiment of the present application;

[0048] Figure 13 is Figure 12 a partial enlarged view at position F in

[0049] Figure 14 a schematic diagram of a guide rail provided by an embodiment of the present application.

[0050] Description of reference numerals:

[0051] 1. Frame; 11. Guide rail; 111. Needle roller row; 112. Stopping portion; 2. Battery module; 21. Step-like structure; 211. First surface; 212. Second surface; 22. First limiting portion; 23. Assembly portion; 24. Handle; 3. Auxiliary structure; 31. First cross beam; 311. Second limiting portion; 32. Second cross beam assembly; 321. Second cross beam; 322. Support block; 4. Cabinet body. Detailed implementation manners

[0052] Now, various exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application.

[0053] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended as a limitation on the present application, its application, or use.

[0054] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0055] In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0056] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0057] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "height", "thickness", "upper", "lower", "front", "middle", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to the present application.

[0058] Referring to Figures 1 to 14 , an embodiment of the present utility model provides a battery cabinet, including:

[0059] A cabinet door;

[0060] A cabinet body 4, the cabinet door and the cabinet body 4 defining a receiving cavity for receiving a battery module 2; and

[0061] At least one battery module 2, with a battery and a cooling medium provided inside the battery module 2, and the battery module 2 being provided with a rolling structure so that the battery module 2 is assembled in the receiving cavity through the rolling structure.

[0062] As Figure 1 , Figure 2 , Figures 5 to 7 shown, in an embodiment of the present utility model, a guide rail 11 may be provided inside the cabinet body 4. For example, the guide rail 11 may be provided on the support beam of the cabinet body 4, or may be provided on the side frame of the inner frame of the cabinet body 4. The guide rail 11 is used to guide the assembly of the battery module 2. Among them, as Figure 5 shown, the guide rail 11 is located on the inner wall of the cabinet body 4 so as to make full use of the internal space of the cabinet body 4, thereby being able to control the overall size of the battery cabinet and facilitating the miniaturization development of the battery cabinet.

[0063] During the process of assembling the battery module 2, both sides of the bottom of the battery module 2 are in contact with the guide rails 11 on both sides of the cabinet body 4 and slide into the cabinet body 4 along the guide rails 11. This enables the guide rails 11 on both sides of the cabinet body 4 to support the battery module 2, and the cabinet body 4 to protect the battery module 2, thereby ensuring the normal operation of the battery module 2, extending the service life of the battery module 2, and improving the structural stability and reliability of the battery cabinet.

[0064] Among them, both sides of the bottom of the battery module 2 are in contact with the guide rails 11 on both sides of the cabinet body 4 and slide into the cabinet body 4 along the guide rails 11. That is, the guide rails 11 are arranged inside along the height direction of the cabinet body 4 to make full use of the internal space in the height direction of the cabinet body 4, avoid the increase in the size of the battery cabinet, and thus facilitate the miniaturization development of the battery cabinet.

[0065] Among them, the housing of the battery module 2 is filled with a cooling medium, and the cooling medium can cool the batteries in the battery module 2, thereby ensuring the normal operation of the battery module 2.

[0066] As Figures 5 to 7 shown, needle roller rows 111 can be formed on the upper surface of the guide rails 11. The needle roller rows 111, as the sliding or rolling contact surfaces between the battery module 2 and the guide rails 11, can reduce the frictional resistance during the assembly process of the battery module 2, enabling the battery module 2 to be easily and quickly assembled into the cabinet body 4 along the extension direction of the needle roller rows 111. This not only reduces the manpower requirements during the assembly process, saves assembly tools, but also shortens the assembly time of the battery module 2 and improves production efficiency.

[0067] In addition, the needle roller rows 111 have the characteristics of rolling friction, enabling the battery module 2 to move smoothly during the assembly process and avoiding position deviations caused by friction or vibration. This also ensures that the battery module 2 can be accurately assembled to the predetermined position, improving the overall structural stability and safety of the battery cabinet.

[0068] Furthermore, the combined design of the guide rails 11 and the needle roller rows 111 also makes the loading and unloading of the battery module 2 in the cabinet body 4 more convenient. When it is necessary to replace or repair the battery module 2, the staff can easily slide the battery module 2 out along the direction of the needle roller rows 111 without a complex disassembly process. This not only reduces the maintenance cost and difficulty, but also improves the usability and flexibility of the battery cabinet.

[0069] In another embodiment, a rolling structure such as rollers can also be provided on the battery module 2, and the battery module 2 is loaded into the accommodating cavity through the rollers, enabling the battery module 2 to be easily and quickly assembled into the cabinet body 4 and avoiding the cumbersome process of hoisting and installation.

[0070] Optionally, the battery module 2 includes battery modules, and the battery cabinet further includes:

[0071] Support beams, which are arranged on the side walls of the cabinet body 4; and

[0072] Guide rails 11, which are arranged on the support beams, and the battery modules are assembled on the guide rails 11 through the rolling structures, so that the rapid and convenient assembly of a single battery module can be realized through rolling structures such as rollers and needle rollers.

[0073] Optionally, the battery module 2 includes battery modules, and the battery cabinet further includes:

[0074] A frame 1, which is arranged inside the cabinet body 4; and

[0075] Guide rails 11, which are arranged on the side frames of the frame 1, and the battery modules are assembled on the guide rails 11 through the rolling structures, so that the rapid and convenient assembly of a single battery module can be realized through rolling structures such as rollers and needle rollers. Among them, the setting of the frame can also improve the overall strength of the battery cabinet.

[0076] Optionally, the battery module 2 includes battery clusters, the rolling structure includes rollers, and the battery cabinet further includes:

[0077] A frame 1, which is arranged inside the cabinet body 4, at least one battery module is installed on the frame 1, and the frame 1 and the battery module are combined to form the battery cluster; and

[0078] Guide rails 11, which are arranged on the side frames of the frame 1, the bottom of the frame 1 is provided with the rollers, and the battery cluster is assembled on the guide rails 11 through the rollers, so that the rapid and convenient assembly of multiple battery modules can be realized through rolling structures such as rollers and needle rollers, so as to meet different energy storage function requirements.

[0079] Optionally, at least part of the battery is immersed in the cooling medium, so as to be able to use the cooling medium to cool the battery in the battery module 2, thereby ensuring that the battery module 2 can work normally.

[0080] Optionally, the frame 1 is detachably connected to the inside of the cabinet body 4.

[0081] As Figure 1 and Figure 2 shown, the frame 1 can be installed inside the cabinet body 4 in a detachable connection manner, making the assembly and maintenance of the battery cabinet more convenient, facilitating operations such as replacement and maintenance of the battery module 2, thereby improving the assembly work efficiency and reducing the maintenance cost.

[0082] Moreover, the cabinet body 4 can provide certain protection for the battery cabinet, thereby enhancing the protection ability of the battery cabinet. The cabinet body 4 can be made of materials with good dust-proof, waterproof, shock-proof and other properties, so as to effectively protect the internal frame 1 and battery module 2 from the influence of the external environment, which helps to improve the reliability and durability of the battery cabinet and extend its service life.

[0083] In addition, some additional functional components, such as heat dissipation holes, observation windows, handles, etc., can also be integrated on the cabinet body 4, so as to further improve the practicability and convenience of the battery cabinet.

[0084] Optionally, the rolling structure includes:

[0085] A row of needle rollers 111, the row of needle rollers 111 is arranged on the guide rail 11, and the bottom of the battery module 2 has a stepped structure 21, and the stepped structure 21 is slidably connected to the row of needle rollers 111.

[0086] As Figure 9 and Figure 11 shown, the bottom of the battery module 2 is provided with a stepped structure 21. The design of the stepped structure 21 makes the contact between the bottom of the battery module 2 and the row of needle rollers 111 more uniform and stable, which can reduce the shaking and vibration during the assembly process of the battery module 2, thereby enhancing the stability and smoothness during the assembly process of the battery module 2. It not only improves the assembly accuracy, but also reduces the potential damage risk caused by the vibration of the battery module 2.

[0087] Moreover, by forming the stepped structure 21 at the bottom of the battery module 2, the stepped structure 21 can also be used to position and guide the assembly of the battery module 2 and the cabinet body 4. By precisely designing the size and shape of the stepped structure 21, it can be ensured that the battery module 2 can be accurately aligned and placed at the predetermined position during the assembly process, which helps to improve the overall structural stability and performance consistency of the battery cabinet. Among them, the width of the stepped structure 21 can be designed to be 50 mm and the height can be designed to be 15 mm.

[0088] In addition, the sliding connection between the stepped structure 21 and the row of needle rollers 111 also helps to reduce the frictional resistance during the assembly process of the battery module 2. The row of needle rollers 111 provides rolling friction, and the stepped structure 21 closely cooperates with the row of needle rollers 111, so that the battery module 2 can slide along the row of needle rollers 111 more easily, further improving the assembly efficiency of the battery module 2.

[0089] In addition, the two sides of the bottom of the battery module 2 can also be provided with stepped structures 21 respectively, and the stepped structures 21 on both sides are respectively slidably connected to the row of needle rollers 111, so as to further enhance the stability and smoothness during the assembly process of the battery module 2

[0090] Optionally, the stepped structure 21 includes a first surface 211 and a second surface 212 , the first surface 211 and the second surface 212 are bent and connected, the first surface 211 is in contact with the needle roller row 111 , and there is a gap between the second surface 212 and the guide rail 11 .

[0091] like Figure 9 and Figure 11 As shown, the first surface 211 of the step-shaped structure 21 is fitted with the needle roller row 111, which can ensure the stable sliding of the battery module 2 during the assembly process. This fitting design can reduce friction resistance, allowing the battery module 2 to slide along the needle roller row 111 more easily and smoothly, thereby improving the assembly efficiency of the battery module 2. At the same time, the fitting design also helps to maintain close contact between the battery module 2 and the needle roller row 111, avoiding shaking or deviation of the battery module 2 during the sliding process, and improving the assembly accuracy and stability of the battery module 2.

[0092] In addition, there is a gap between the second surface 212 of the step-like structure 21 and the guide rail 11, and the gap can provide a certain space for the assembly of the battery module 2, and can prevent the battery module 2 from rubbing or colliding with the guide rail 11 during the assembly process, thereby protecting the battery module 2 from potential damage and extending its service life. At the same time, the gap between the second surface 212 and the guide rail 11 also helps to reduce noise and vibration during the assembly process of the battery module 2, and improves the overall performance and user experience of the battery cabinet. The size of the gap can be adjusted according to the size of the battery module 2 and the size of the guide rail 11, for example, the gap can be set between 5 mm and 15 mm, for example, the gap is 10 mm.

[0093] In addition, the design of the step-shaped structure 21 can also enhance the structural strength of the battery module 2 and make the battery module 2 more flexible and stable during assembly. The bending connection between the first surface 211 and the second surface 212 can effectively disperse the stress during assembly and prevent the battery module 2 from being deformed or damaged when subjected to stress.

[0094] Optionally, the height of the needle roller row 111 ranges from 3 mm to 8 mm.

[0095] Specifically, the height of the needle roller row 111 can be set to be in the range of 3 mm to 8 mm, for example, the height of the needle roller row 111 is set to be lower than 6.5 mm, that is, the height of the needle roller row 111 is kept moderate. It can provide sufficient support force to prevent the battery module 2 from shaking or sinking during the assembly process, thereby ensuring the stability and smoothness of the battery module 2 during the assembly process, and can also maintain a small friction resistance, so that the battery module 2 can slide along the needle roller row 111 easily and smoothly.

[0096] Secondly, keep the height of the needle roller row 111 moderate, so that the battery module 2 can be accurately aligned with the predetermined position during the assembly process, avoiding assembly deviations or misalignments caused by improper height, and contributing to improving the overall structural stability and performance consistency of the battery cabinet. Among them, the width of the needle roller row 111 can be adjusted according to the size of the battery module 2. For example, the width of the needle roller row 111 can be designed to be about 30 millimeters.

[0097] In addition, keep the height of the needle roller row 111 moderate, avoiding the needle roller row 111 being too high or too low. On the one hand, an overly high needle roller row 111 will increase the manufacturing cost and assembly difficulty, and on the other hand, it will also occupy a relatively large space inside the battery cabinet; while an overly low needle roller row 111 may not provide sufficient support force. Therefore, the height range of the needle roller row is set between 3 millimeters and 8 millimeters, which can not only meet the actual application requirements, but also maintain a high cost performance and facilitate the full utilization of the internal space of the battery cabinet.

[0098] Optionally, the guide rails 11 are respectively provided on the opposite sides of the cabinet body 4, and the bottom sides of the battery module 2 respectively have the stepped structures 21, and each stepped structure 21 is slidably connected to the needle roller row 111 on one of the guide rails 11.

[0099] As Figure 1 、 Figure 2 、 Figure 5 and Figure 9 shown, it is possible to set the battery module 2 and the cabinet body 4 to form a cooperation of double-sided guide rails and stepped structures, which can improve the assembly stability of the battery module 2. During the assembly process of the battery module 2, the stepped structures 21 on the bottom sides of it can be slidably connected to the needle roller rows 111 on both sides at the same time, forming a stable support structure. This design effectively prevents the battery module 2 from shaking or tilting during the assembly process, ensuring that the battery module 2 can be smoothly and accurately assembled to the predetermined position.

[0100] In addition, since the stepped structures 21 on the bottom sides of the battery module 2 can be slidably connected to the needle roller rows 111 on both sides at the same time, the battery module 2 can slide more smoothly along the guide rail 11 during the assembly process, reducing the frictional resistance during the assembly process. This not only improves the assembly efficiency, but also enables the battery module 2 to be more accurately positioned at the predetermined position, improving the assembly accuracy.

[0101] After the battery module 2 is assembled, the stepped structures 21 on the bottom sides of it can be closely attached to the needle roller rows 111 on the two side guide rails 11, forming a stable support structure, which helps to prevent the battery module 2 from shaking or displacing inside the cabinet body 4 and improves the overall structural stability of the battery cabinet.

[0102] Optionally, a stop portion 112 is further provided at the end of the guide rail 11, and a first limiting portion 22 is provided on the battery module 2. The stop portion 112 is used to form a stop against the first limiting portion 22.

[0103] As Figure 5 , Figure 7 , Figure 10 , Figure 12 and Figure 13 As shown, the cooperation between the stop portion 112 on the guide rail 11 and the first limiting portion 22 on the battery module 2 can limit the sliding of the battery module 2. During the sliding assembly process of the battery module 2 along the needle roller row 111, when the first limiting portion 22 contacts the stop portion 112, the sliding will stop, thereby ensuring that the battery module 2 can accurately stay at the predetermined position, and avoiding assembly deviation or damage caused by excessive sliding of the battery module 2, and improving the assembly accuracy and reliability.

[0104] Moreover, when the battery module 2 is assembled in place, the first limiting portion 22 and the stop portion 112 can be closely attached to each other, thereby forming a stable limiting structure, effectively preventing the battery module 2 from shaking or displacing in the cabinet body 4, contributing to improving the overall structural stability of the battery cabinet, and ensuring that the battery module 2 can maintain stable performance during operation.

[0105] When assembling the battery module 2, it is only necessary to slide the battery module 2 along the needle roller row 111 until the first limiting portion 22 cooperates with the stop portion 112, without the need to use additional fixing tools or equipment, thereby reducing the assembly difficulty and cost of the battery module 2 and also improving the assembly efficiency. Among them, the cooperation between the first limiting portion 22 and the stop portion 112 includes but is not limited to snap-fit, magnetic attraction fit, etc. The size of the stop portion 112 on the guide rail 11 can be 30 mm * 20 mm.

[0106] Optionally, one of the first limiting portion 22 and the stop portion 112 is a protrusion, and the other of the first limiting portion 22 and the stop portion 112 is a groove adapted to the protrusion.

[0107] Specifically, setting the cooperation mode of the protrusion and the groove can achieve accurate positioning and limiting functions. When the battery module 2 slides to the predetermined position, the protrusion will accurately embed into the groove, thereby ensuring that the position of the battery module 2 in the cabinet body 4 is accurate. This design avoids position deviation during the assembly process of the battery module 2 and improves the installation accuracy and stability of the battery module 2.

[0108] In addition, since an engaging relationship can be formed between the protrusions and the grooves, the first limiting portion 22 and the stopping portion 112 can resist external vibration and impact, thereby preventing the battery module 2 from loosening or shifting during operation, which helps to improve the overall structural stability and reliability of the battery cabinet.

[0109] When assembling the battery pack, only need to align the protrusions with the grooves and gently push, then the rapid installation of the battery module 2 can be achieved, which not only reduces the assembly difficulty, but also improves the assembly efficiency, saving time and labor costs.

[0110] Optionally, the guide rail 11 includes a third surface, a fourth surface and a fifth surface, the third surface, the fourth surface and the fifth surface are perpendicular to each other in pairs, and the stopping portion 112 and the row of needle rollers 111 are respectively located on two different surfaces.

[0111] As Figure 5 、 Figure 7 and Figure 14 shown, setting the guide rail 11 to include a third surface, a fourth surface and a fifth surface that are perpendicular to each other in pairs, this multi-surface perpendicular design makes the guide rail 11 have stronger structural stability and load-bearing capacity. Since the third surface, the fourth surface and the fifth surface are perpendicular to each other in pairs, they can jointly form a stable support structure and can resist external pressure and vibration, thereby ensuring the smoothness and safety of the battery module 2 during assembly and use.

[0112] Moreover, setting the stopping portion 112 and the row of needle rollers 111 on two different surfaces respectively, that is, the row of needle rollers 111 is located on one surface, responsible for providing sliding support for the battery module 2 and reducing the frictional resistance, so that the battery module 2 can be easily assembled to the predetermined position. And the stopping portion 112 is located on another surface, used to limit the sliding distance of the battery module 2 to ensure that the battery module 2 can accurately stop at the predetermined position.

[0113] In addition, since the surfaces of the guide rail 11 are perpendicular to each other, the installation direction and position of the guide rail 11 can be adjusted according to actual needs to adapt to different assembly scenarios and battery pack sizes. This design makes the guide rail 11 have a wider application range and improves the versatility and scalability of the battery cabinet. Among them, as Figure 14 shown, the cross-section of the guide rail 11 can be designed as an L shape, which is convenient for the installation of the guide rail 11.

[0114] Optionally, it further includes an auxiliary structure 3, the auxiliary structure 3 is connected to the frame 1 and / or the battery module 2, and the auxiliary structure 3 is used to limit the battery module 2.

[0115] As Figures 1 to 4As shown, the auxiliary structure 3 can be connected to the outside of the frame 1, or to the outside of the battery module 2, or to the outside of the frame 1 and the outside of the battery module 2 respectively. In all cases, the auxiliary structure 3 can be used to enhance the stability of the assembly of the battery module 2. The auxiliary structure 3 can ensure that the battery module 2 always maintains the correct position during assembly and use, preventing it from shaking, tilting or shifting, which helps to ensure the safe operation of the battery module 2 and also helps to extend its service life.

[0116] During the assembly process, the staff can use the auxiliary structure 3 to position and fix the battery pack, so as to ensure that each battery module 2 can be accurately placed in the predetermined position, which not only simplifies the assembly process of the battery module 2, but also reduces the assembly error and improves the overall assembly quality.

[0117] In addition, the auxiliary structure 3 can be designed according to the dimensions, shapes and performance requirements of different battery modules 2 and frames 1 to meet the needs of various application scenarios. Moreover, the auxiliary structure 3 can also work in coordination with other components of the battery module 2 and the frame 1 to jointly build a stable and efficient battery cabinet system.

[0118] Optionally, the auxiliary structure 3 includes a first cross beam 31, and the first cross beam 31 has a second limiting portion 311. The bottom of the battery module 2 has an assembly portion 23, and the second limiting portion 311 can form a limit on the assembly portion 23.

[0119] As Figure 3 and Figure 4 shown, by using the second limiting portion 311 on the first cross beam 31 to limit the assembly portion 23 of the battery module 2, reliable positioning and stable support of the battery module 2 in the horizontal direction can be achieved, so as to ensure that the battery module 2 can be accurately aligned and fixed in the predetermined position during the assembly process, and prevent the battery module 2 from shaking or moving in the horizontal direction, improving the assembly reliability of the battery cabinet.

[0120] As Figure 8 and Figure 9 shown, the middle part of the bottom of the battery module 2 can have two assembly portions 23, and the two assembly portions 23 can support the battery module 2 from the middle, thereby reducing the pressure on both sides of the housing of the battery module 2. As Figure 8 shown, the front of the battery module 2 also has a handle 24, and the handle 24 is located on the side of the battery module 2 away from the first limiting portion 22. Through the handle 24, the installation and disassembly of the battery module 2 can be facilitated.

[0121] Moreover, since the bottom of the battery module 2 fits tightly with the second limiting portion 311 of the first crossbeam 31, the two can form a stable support structure, enabling the battery module 2 to maintain a relatively stable position when subjected to external vibration or impact, and reducing potential safety risks caused by vibration.

[0122] In addition, the first crossbeam 31 can also be easily connected to the frame 1, and cooperate with the assembly portion 23 of the battery module 2 through the second limiting portion 311 to achieve a fast and reliable limiting function. This design not only simplifies the assembly process of the battery cabinet, but also improves the assembly efficiency and reduces the manufacturing cost.

[0123] Optionally, the auxiliary structure 3 further includes a second crossbeam assembly 32. The second crossbeam assembly 32 is located on the side of the battery module 2 away from the first crossbeam 31, and the second crossbeam assembly 32 is connected to the frame 1 and / or the battery module 2.

[0124] As Figure 1 and Figure 2 shown, by introducing the second crossbeam assembly 32, the battery module 2 can also be effectively supported and limited on the side away from the first crossbeam 31, that is, both sides of the battery module 2 can be supported and limited. This dual-support design further improves the stability of the battery module 2 within the cabinet body 1, reducing the possible shaking and displacement of the battery module 2 during transportation, installation, and use.

[0125] Moreover, the connection of the second crossbeam assembly 32 can further enhance the overall structural strength of the battery module 2 and the frame 1. The second crossbeam assembly 32 can connect the battery module 2 and the frame 1 more tightly together to form a more stable overall structure, helping to improve the vibration resistance and shock resistance of the battery cabinet, and ensuring that the battery module 2 can operate stably even in a harsh environment.

[0126] In addition, the introduction of the second crossbeam assembly 32 also provides more possibilities for the fixation and positioning of the battery module 2. The second crossbeam assembly 32 can cooperate with specific parts on the battery module 2 to achieve precise fixation and positioning of the battery module 2, not only simplifying the installation process of the battery module 2, but also improving the installation accuracy, and helping to reduce performance problems caused by improper installation.

[0127] Optionally, the second crossbeam assembly 32 includes at least one second crossbeam 321, and the second crossbeam 321 is connected to the battery module 2 and / or the frame 1.

[0128] As Figure 1 and Figure 2As shown, the second crossbeam 321, as the core component of the second crossbeam assembly 32, can provide certain support for the battery module 2. By connecting with the battery module 2 or the frame 1, the second crossbeam 321 can disperse the force of the battery module 2 in the height direction, enhance the stability of the battery module 2 in the frame 1, thereby helping to reduce the vibration and displacement of the battery module 2 during transportation, installation and use, and also improve the reliability and safety of the battery module 2. Moreover, since the second crossbeam 321 can be directly connected to the battery module 2 and the frame 1, it can also save additional fixings or connectors, making the assembly process of the battery module 2 simpler and faster, thereby improving the assembly efficiency of the battery cabinet and reducing the manufacturing cost.

[0129] The connection between the second crossbeam 321 and the frame 1 can further enhance the overall structural strength of the battery cabinet. By fixing the second crossbeam 321 on the frame 1, the connection between the battery module 2 and the frame 1 is tighter, thereby forming a more stable overall structure, which helps to improve the vibration and impact resistance of the battery cabinet, so that the battery cabinet can maintain stable operation even in harsh environments.

[0130] In addition, the number and position of the second crossbeams 321 can be increased or decreased to conveniently adapt to the capacity and layout of the battery cabinet. This design makes the battery cabinet more flexible and convenient when expanding or upgrading, reducing the cost and time of transformation.

[0131] Optionally, the second crossbeam assembly 32 further includes a support block 322 , wherein the support block 322 is disposed on the second crossbeam 321 , and the support block 322 is connected to the assembly portion 23 .

[0132] like Figure 1 and Figure 2 As shown, by connecting the support block 322 on the second crossbeam 321 with the assembly portion 23 on the battery module 2, the battery module 2 can be supported and fixed, and the risk of shaking and displacement of the battery module 2 during transportation, installation and use can be reduced. It can also ensure that the battery module 2 always remains in the correct position, thereby improving the overall stability of the battery cabinet.

[0133] Furthermore, the provision of the support block 322 also makes the connection between the battery module 2 and the second crossbeam 321 more flexible and convenient. The support block 322 can be designed according to the size and shape of the battery module 2 to ensure that the support block 322 can be closely matched with the assembly portion 23. This design not only simplifies the installation process of the battery module 2, but also improves the installation accuracy and reduces performance problems caused by improper installation.

[0134] In addition, the support block 322 can be designed to have sufficient strength and durability, enabling the support block 322 to bear the weight and vibration of the battery module 2, maintain long-term stability, and thus extend the service life of the battery cabinet.

[0135] Optionally, the guide rail 11 is opposite to the side edge position of the battery module, and a plurality of the battery modules are arranged along the height direction of the battery cabinet.

[0136] As Figures 1 to 3 shown, by arranging a plurality of battery modules along the height direction of the battery cabinet, the energy storage capacity of the battery cabinet can be improved. Stacking a plurality of battery modules along the height direction of the battery cabinet can also make full use of the internal space of the frame 1, enabling the battery cabinet to store more electric energy and meeting the requirements of high-energy-density storage. Among them, according to actual needs, a certain battery module can be replaced or repaired individually without disassembling the entire battery cabinet, improving the maintenance convenience and efficiency of the battery cabinet.

[0137] Among them, setting the number of the guide rails 11 to be twice the number of the battery modules, that is, the guide rails 11 are respectively arranged on both sides of the frame 1, can ensure that both sides of each battery module can be stably and reliably supported, and also improve the stability and safety of the battery module during assembly and use.

[0138] Moreover, setting the guide rail 11 to be opposite to the side edge position of the battery module enables the battery module to remain stable during sliding, reduces shaking and vibration, helps to reduce the risk of damage to the battery module during assembly and removal, and extends the service life of the battery module.

[0139] The embodiment of the present application also provides an energy storage system, including at least one of the foregoing battery cabinets.

[0140] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A battery cabinet, characterized in that: include: Cabinet doors; A cabinet body (4), wherein the cabinet door and the cabinet body (4) define a receiving cavity, and the receiving cavity is used to receive a battery module (2); and at least one battery module (2), wherein a battery and a cooling medium are arranged inside the battery module (2), and the battery module (2) is provided with a rolling structure so that the battery module (2) can be assembled in the accommodating cavity through the rolling structure; A guide rail (11) is provided in the accommodating cavity, the rolling structure comprises a row of needle rollers (111), the row of needle rollers (111) is arranged on the guide rail (11), the bottom of the battery module (2) has a step-shaped structure (21), and the step-shaped structure (21) is slidably connected to the row of needle rollers (111).

2. The battery cabinet according to claim 1, characterized in that: The battery module (2) comprises a battery module, and the battery cabinet further comprises: A support beam, the support beam being arranged on a side wall of the cabinet body (4); and A guide rail (11), wherein the guide rail (11) is arranged on the support beam, and the battery module is assembled on the guide rail (11) through the rolling structure.

3. The battery cabinet according to claim 1, characterized in that: The battery module (2) comprises a battery module, and the battery cabinet further comprises: A frame (1), the frame (1) being arranged in the cabinet body (4); and A guide rail (11), wherein the guide rail (11) is arranged on a side frame of the frame (1), and the battery module is assembled on the guide rail (11) via the rolling structure.

4. The battery cabinet according to claim 1, characterized in that: The battery module (2) comprises a battery cluster, the rolling structure comprises a roller, and the battery cabinet further comprises: A frame (1), the frame (1) being arranged in the cabinet body (4), the frame (1) being equipped with at least one battery module, the frame (1) being combined with the battery module to form the battery cluster; and A guide rail (11), wherein the guide rail (11) is arranged on a side frame of the frame (1), the roller is arranged at the bottom of the frame (1), and the battery cluster is assembled on the guide rail (11) via the roller.

5. The battery cabinet according to claim 1, characterized in that: The battery is at least partially immersed in the cooling medium.

6. The battery cabinet according to claim 3 or 4, characterized in that: The frame (1) is detachably connected to the cabinet body (4).

7. The battery cabinet according to claim 1, characterized in that: The step-shaped structure (21) comprises a first surface (211) and a second surface (212); the first surface (211) and the second surface (212) are connected by bending, the first surface (211) is in contact with the needle roller row (111), and there is a gap between the second surface (212) and the guide rail (11).

8. The battery cabinet according to claim 1, characterized in that: The height of the needle roller row (111) ranges from 3 mm to 8 mm.

9. The battery cabinet according to claim 1, characterized in that: The guide rails (11) are respectively provided on opposite sides of the cabinet body (4), and the step-like structures (21) are respectively provided on two sides of the bottom of the battery module (2), and each of the step-like structures (21) is slidably connected to a needle roller row (111) on the guide rail (11).

10. The battery cabinet according to claim 1, characterized in that: The end of the guide rail (11) is also provided with a stop portion (112), and the battery module (2) is provided with a first limit portion (22), and the stop portion (112) is used to form a stop for the first limit portion (22).

11. The battery cabinet according to claim 10, characterized in that: One of the first limiting portion (22) and the stopping portion (112) is a protrusion, and the other of the first limiting portion (22) and the stopping portion (112) is a groove matched with the protrusion.

12. The battery cabinet according to claim 3 or 4, characterized in that: It also comprises an auxiliary structure (3), wherein the auxiliary structure (3) is connected to the frame (1) and / or the battery module (2), and the auxiliary structure (3) is used to limit the position of the battery module (2).

13. The battery cabinet according to claim 12, characterized in that: The auxiliary structure (3) comprises a first crossbeam (31), the first crossbeam (31) having a second limiting portion (311), the bottom of the battery module (2) having an assembly portion (23), and the second limiting portion (311) being capable of limiting the assembly portion (23).

14. The battery cabinet according to claim 13, characterized in that: The auxiliary structure (3) further comprises a second cross beam assembly (32), wherein the second cross beam assembly (32) is located on a side of the battery module (2) away from the first cross beam (31), and the second cross beam assembly (32) is connected to the frame (1) and / or the battery module (2).

15. The battery cabinet according to claim 14, characterized in that: The second crossbeam assembly (32) further comprises a support block (322), wherein the support block (322) is arranged on the second crossbeam (321), and the support block (322) is connected to the assembly portion (23).

16. The battery cabinet according to any one of claims 2 to 4, characterized in that: The guide rail (11) is located opposite to the side edge of the battery module, and a plurality of the battery modules are arranged along the height direction of the battery cabinet.

17. An energy storage system, characterized in that: The invention comprises at least one battery cabinet, wherein the battery cabinet is a battery cabinet as claimed in any one of claims 1 to 16.

Images