Energy storage box

Abstract

The utility model provides an energy storage box. The energy storage box comprises a box body; the liquid cooling plate is arranged on the box body, a containing cavity is defined by the liquid cooling plate and the box body, and the liquid cooling plate is provided with a liquid cooling flow channel for cooling liquid to flow; the battery module is accommodated in the accommodating cavity, and the liquid cooling plate is used for exchanging heat with the battery module. The heat dissipation efficiency of the battery module is improved, and the thickness of the energy storage box is reduced.

Description

Technical Field

[0001] This application relates to an energy storage box, belonging to the field of energy storage technology. Background Technology

[0002] In fields such as new energy power plants or microgrids, energy storage boxes are generally required to meet power demand. Energy storage boxes are a common form of large-scale electrochemical energy storage systems.

[0003] Currently, energy storage boxes typically consist of battery modules and a housing. The battery modules are housed within the enclosed housing, and air cooling or separate liquid cooling is generally used to maintain the battery temperature for heat dissipation.

[0004] However, with the increase in power density of energy storage systems, especially in applications involving high-power, large-load equipment, traditional heat dissipation methods are gradually failing to meet the requirements, leading to overheating of internal batteries and affecting system safety. Utility Model Content

[0005] This application provides an energy storage box that improves the heat dissipation efficiency of the battery module and reduces the thickness of the energy storage box.

[0006] This application provides an energy storage box, including:

[0007] Box;

[0008] The liquid cooling plate is installed on the housing and forms a cavity with the housing. The liquid cooling plate has liquid cooling channels for the flow of coolant.

[0009] The battery module is housed within a housing cavity, and a liquid cooling plate is used for heat exchange with the battery module.

[0010] The beneficial effects of this application are: by combining the liquid cooling plate with the housing to form a cavity for accommodating the battery module, the thickness of the energy storage box can be reduced, the installation space occupied can be reduced, the energy storage box can be made more compact, and subsequent maintenance can be facilitated; secondly, it can ensure that the coolant flows evenly in the flow channel, so that all parts of the battery module can be cooled evenly, and the service life of the internal cells can be extended.

[0011] Based on the above technical solution, the following improvements can be made to this application.

[0012] In some alternative implementations, the liquid cooling plate has an abutment surface facing the battery module;

[0013] The battery module is mounted on the housing and abuts against the contact surface.

[0014] It should be noted that the contact surface design ensures that all parts of the battery module can make close contact with the liquid cooling plate, thereby achieving a uniform temperature distribution.

[0015] In some alternative implementations, a heat-conducting element is also included, disposed between the contact surface and the sidewall of the battery module.

[0016] It should be noted that the placement of the heat-conducting component provides an efficient heat conduction path between the battery module and the liquid cooling plate. The heat-conducting component is typically made of a highly thermally conductive material, which can quickly transfer the heat generated by the battery module to the liquid cooling plate, further improving heat dissipation efficiency.

[0017] In some alternative embodiments, the housing includes a lid and a support frame, the lid having an opening and the support frame disposed on the lid and surrounding the opening.

[0018] The liquid cooling plate is mounted on the support frame to seal the opening.

[0019] It should be noted that the support frame provides a stable foundation for mounting the liquid cooling plate. By securing the liquid cooling plate to the support frame, the structural stability of the entire system can be improved, ensuring that the liquid cooling plate maintains good position and contact during operation.

[0020] In some alternative embodiments, the support frame includes a first frame and a second frame, and there are at least two first frames and at least two second frames connected together to surround the outer periphery of the liquid cooling plate.

[0021] The length of the first border is greater than the length of the second border.

[0022] It should be noted that this design is better able to withstand external pressure or mechanical stress, reducing the possibility of deformation. Combinations of frame lengths optimize the overall weight. A shorter second frame reduces material usage, thus lowering the total weight while maintaining sufficient strength, while the first frame serves as the primary load-bearing structure, reducing the need for other fixing devices and simplifying installation.

[0023] In some alternative embodiments, the first frame has a recess extending away from the direction of the liquid cooling plate, the recess being used to mount the liquid cooling plate.

[0024] It should be noted that the recess provides a dedicated mounting slot, allowing the liquid cooling plate to be secured to the first frame and concealed, thereby reducing the thickness of the energy storage tank. The recessed design makes the installation of the liquid cooling plate more intuitive and convenient. Installers can more easily and accurately place the liquid cooling plate in the designated position, reducing installation time and complexity.

[0025] In some alternative implementations, the support frame further includes a first support beam and a second support beam;

[0026] The first support beam is disposed at the top of the first frame and extends toward the battery module to support at least part of the battery module.

[0027] The second support beam is located at the bottom of the first frame and extends towards the liquid cooling plate to support at least part of the liquid cooling plate.

[0028] It should be noted that the first and second support beams are located at the top and bottom of the frame, respectively, forming a more robust frame structure. This design effectively distributes and bears the weight and pressure from the battery module and liquid cooling plate, improving the overall stability and durability of the device.

[0029] In some alternative embodiments, there are at least two first support beams and at least two second support beams, and the at least two first support beams and at least two second support beams are spaced apart along the extension direction of the first frame.

[0030] It should be noted that the spacing of at least two first support beams and at least two second support beams not only enhances the stability and vibration resistance of the structure, but also optimizes the load distribution and thermal management effect, while improving the convenience of installation and maintenance, as well as the modularity and scalability of the system.

[0031] In some alternative implementations, a seal is also included, which is disposed between the lid and the support frame.

[0032] It should be noted that the seals prevent dust, moisture, and other contaminants from entering the enclosure, protecting critical components such as the battery modules and liquid cooling plates from external environmental influences. Effective sealing reduces the risk of leakage and contamination, thereby lowering the frequency and cost of maintenance and repair, and extending the system's lifespan.

[0033] In some alternative implementations, the liquid cooling plate is an integrally stamped cold plate.

[0034] The energy storage box provided in this application includes a box body; a liquid cooling plate disposed on the box body and forming a receiving cavity with the box body, the liquid cooling plate having a liquid cooling channel for the flow of coolant; and a battery module to be housed in the receiving cavity, the liquid cooling plate being used for heat exchange with the battery module.

[0035] By combining the liquid cooling plate with the housing to form a cavity for accommodating the battery module, the thickness of the energy storage box can be reduced, the installation space occupied can be reduced, the energy storage box can be made more compact, and subsequent maintenance can be facilitated. Secondly, it can ensure that the coolant flows evenly in the flow channel, so that all parts of the battery module can be cooled evenly, and the service life of the internal cells can be extended. Attached Figure Description

[0036] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0037] Figure 1 This is a first-view structural schematic diagram of the energy storage box according to an embodiment of this application;

[0038] Figure 2 This is an exploded view of the energy storage box according to an embodiment of this application;

[0039] Figure 3 for Figure 2 A magnified view of a section at point I;

[0040] Figure 4 This is a second-view structural schematic diagram of the energy storage box according to an embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the assembly of the support frame and the liquid cooling plate in the energy storage box according to an embodiment of this application;

[0042] Figure 6 This is a partial cross-sectional view of the supporting frame in the energy storage box according to an embodiment of this application.

[0043] Figure label:

[0044] 100-Energy Storage Box;

[0045] 110 - Box body; 111 - Box cover; 112 - Supporting frame; 1121 - First frame; 11211 - Recess; 1122 - Second frame; 1123 - First support beam; 1124 - Second support beam;

[0046] 120 - Liquid cooling plate; 121 - Water inlet; 122 - Water outlet;

[0047] 130 - Battery module; 140 - Seal; 150 - Lifting slot. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. All other obtained embodiments are within the scope of protection of this application. In the absence of conflict, the following embodiments and features can be combined with each other.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Currently, energy storage boxes typically consist of battery modules and a casing. The casing includes an upper cover and a lower cover, with the battery modules housed within a closed cavity formed by the upper and lower covers. For heat dissipation, air cooling or separate liquid cooling is generally used to maintain battery temperature. However, with the increasing power density of energy storage systems, especially in applications involving high-power, large-load equipment, traditional heat dissipation methods are gradually becoming insufficient, leading to overheating of the internal batteries and affecting system safety.

[0053] The energy storage box proposed in this application combines a liquid cooling plate with the box body to form a cavity for accommodating the battery module. This reduces the thickness of the energy storage box, reduces the space occupied during installation, and makes the energy storage box more compact, facilitating subsequent maintenance. Secondly, it ensures that the coolant flows evenly in the flow channel, so that all parts of the battery module can be cooled evenly, extending the service life of the internal cells.

[0054] The energy storage box provided in this application will be described in detail below with reference to specific embodiments.

[0055] Figure 1 This is a first-view structural schematic diagram of the energy storage box according to an embodiment of this application. Figure 2 This is an exploded view of the energy storage box according to an embodiment of this application. Figure 3 for Figure 2 A magnified view of a section at point I.

[0056] refer to Figures 1 to 3 As shown in the figure, this application embodiment proposes an energy storage box 100, including:

[0057] Box 110;

[0058] A liquid cooling plate 120 is disposed on the housing 110 and forms a receiving cavity with the housing 110. The liquid cooling plate 120 has a liquid cooling channel for the flow of coolant.

[0059] The battery module 130 is housed within the housing cavity, and the liquid cooling plate 120 is used for heat exchange with the battery module 130.

[0060] It is understandable that the purpose of the receiving cavity is to house the battery module 130. It is also easy to understand that the receiving cavity is sealed to prevent side reactions from occurring in the internal system of the battery cell in the battery module 130, which would affect the performance of the battery cell.

[0061] The dimensions of the aforementioned housing 110 can be set according to actual needs, and this embodiment of the application does not impose any restrictions on them.

[0062] In some examples, the housing 110 may be made of metal, and its material may include one or more of copper, iron, aluminum, tin, and lead. The casting mold may be made of sand, metal, or ceramic.

[0063] In other examples, the housing 110 may be made of plastic. During injection molding, molten plastic is injected under pressure into a plastic product mold, and then cooled and solidified to obtain the desired plastic part.

[0064] The injection molding process can be completed by a mechanical injection molding machine. The material of the housing 110 may include one or more of polyethylene, polypropylene, ABS (a terpolymer of acrylonitrile (A), butadiene (B), and styrene (S) monomers), polyamide, and polystyrene.

[0065] It should be noted that the specific material of the housing 110 is not limited in this embodiment.

[0066] Of course, during manufacturing, the housing 110 can also be made of steel plate, plastic or synthetic materials, provided that the strength is guaranteed.

[0067] In addition, it should be noted that the shape of the box 110 is not limited in this embodiment. For example, the box 110 can be a regular shape such as a cuboid or a cylinder. Of course, the box 110 can also be other irregular shapes.

[0068] For example, the size or shape of the receiving cavity is matched with the size and shape of the battery module 130. Specifically, it can be adjusted according to the actual situation. This application embodiment does not impose too many restrictions here.

[0069] It should be noted that by installing a liquid cooling plate 120 on the housing 110, and by having liquid cooling channels on the liquid cooling plate 120, the heat generated by the battery module 130 can be effectively dissipated through the coolant. Liquid cooling technology is generally more efficient than air cooling, and can reduce battery temperature more quickly, prevent overheating, and improve battery efficiency and lifespan.

[0070] In some embodiments, the liquid cooling plate 120 has an inlet 121 and an outlet 122, which are located on the same side of the liquid cooling plate 120 and are both connected to the liquid cooling channel.

[0071] By combining the liquid cooling plate 120 with the housing 110 to form a cavity for accommodating the battery module 130, the thickness of the energy storage box 100 can be reduced, the installation space occupied can be reduced, and the energy storage box 100 can be made more compact, which facilitates subsequent maintenance. Secondly, it can ensure that the coolant flows evenly in the flow channel, so that all parts of the battery module 130 can be cooled evenly, extending the service life of the internal cells.

[0072] In this embodiment, the plurality of battery modules 130 can be configured as a rectangular structure. The plurality of battery modules 130 can be located inside the housing 110.

[0073] Understandably, the housing 110 can be used to support each battery module 130.

[0074] In one possible implementation, the housing 110 can be a rectangular structure, and the size of the housing 110 can be greater than or equal to the size of several battery modules 130, so that the housing 110 can carry several battery modules 130.

[0075] In some alternative embodiments, the liquid cooling plate 120 has an abutment surface facing the battery module 130;

[0076] The battery module 130 is mounted on the housing 110 and abuts against the contact surface.

[0077] It should be noted that the design of the contact surface ensures that all parts of the battery module 130 can be in close contact with the liquid cooling plate 120, thereby achieving a uniform temperature distribution.

[0078] Specifically, the battery module 130 directly abuts against the contact surface of the liquid cooling plate 120, reducing the intermediate medium in the heat conduction path and improving heat conduction efficiency. Furthermore, the design of the battery module 130 abutting against the liquid cooling plate 120 increases the structural stability of the system. The close contact not only facilitates heat conduction but also provides additional physical support, reducing potential vibrations and displacements of the battery module 130 during operation.

[0079] There are no further restrictions on how the battery module 130 is fixed.

[0080] In some embodiments, there are multiple battery modules 130, which are spaced apart along the extension direction of the housing 110.

[0081] In some embodiments, the liquid cooling plate 120 may be located below and adjacent to a plurality of battery modules 130.

[0082] In some alternative embodiments, a heat-conducting element is also included, disposed between the contact surface and the side wall surface of the battery module 130.

[0083] It should be noted that the heat-conducting component provides an efficient heat conduction path between the battery module 130 and the liquid cooling plate 120. The heat-conducting component is typically made of a material with high thermal conductivity, which can quickly transfer the heat generated by the battery module 130 to the liquid cooling plate 120, further improving heat dissipation efficiency.

[0084] Thermal conductive components help distribute heat evenly across different parts of the battery module 130, reducing the formation of localized hot spots. This uniform temperature distribution helps extend battery life and improve its performance. Through more efficient thermal management, thermal conductive components help keep the battery module 130 operating within a safe temperature range, reducing the risk of overheating and thermal runaway, thereby improving the overall safety of the system.

[0085] In some embodiments, the thermally conductive component may be a thermally conductive adhesive. Thermally conductive adhesives are typically made of highly thermally conductive materials such as alumina (Al₂O₃), boron nitride (BN), zinc oxide (ZnO), carbon nanotubes, or other thermally conductive fillers. These materials are capable of effectively transferring heat.

[0086] like Figures 1 to 3 As shown, in some optional embodiments, the box body 110 includes a box cover 111 and a support frame 112. The box cover 111 has an opening, and the support frame 112 is disposed on the box cover 111 and surrounds the outer periphery of the opening.

[0087] The liquid cooling plate 120 is disposed on the support frame 112 to seal the opening.

[0088] It should be noted that the support frame 112 provides a stable foundation for mounting the liquid cooling plate 120. By fixing the liquid cooling plate 120 to the support frame 112, the structural stability of the entire system can be improved, ensuring that the liquid cooling plate 120 maintains good position and contact during operation.

[0089] The design of the support frame 112 makes the installation and removal of the liquid cooling plate 120 more convenient. The liquid cooling plate 120 can be placed directly on the support frame 112, reducing installation steps and time, and also making maintenance or replacement easier.

[0090] In some embodiments, the liquid cooling plate 120 is fixed to the support frame 112 by a large flat flange nut to ensure the rigidity of the energy storage box 100.

[0091] Figure 4 This is a second-view structural schematic diagram of the energy storage box according to an embodiment of this application. Figure 5 This is a schematic diagram of the assembly of the support frame and the liquid cooling plate in the energy storage box according to an embodiment of this application. Figure 6 This is a partial cross-sectional view of the supporting frame in the energy storage box according to an embodiment of this application.

[0092] like Figures 1 to 6 As shown, in some optional embodiments, the support frame 112 includes a first frame 1121 and a second frame 1122, and there are at least two first frames 1121 and at least two second frames 1122. The two first frames 1121 and the at least two second frames 1122 are connected to surround the outer periphery of the liquid cooling plate 120.

[0093] The length of the first border 1121 is greater than the length of the second border 1122.

[0094] It should be noted that this design is better able to withstand external pressure or mechanical stress, reducing the possibility of deformation. Combinations of frame lengths optimize the overall weight. The shorter second frame 1122 reduces material usage, thus lowering the total weight while maintaining sufficient strength, while the first frame 1121 serves as the primary load-bearing structure, reducing the need for other fixing devices and simplifying the installation process.

[0095] In some embodiments, a first frame 1121, a second frame 1122, another first frame 1121 and another second frame 1122 are connected in sequence and surround the outer periphery of the liquid cooling plate 120.

[0096] The first frame 1121 and the second frame 1122 can be installed by welding.

[0097] In some embodiments, the first border 1121 has a convex cross-section.

[0098] like Figure 3 and Figure 6 As shown, in some alternative embodiments, the first frame 1121 has a recess 11211 extending away from the direction of the liquid cooling plate 120, the recess 11211 being used to mount the liquid cooling plate 120.

[0099] It should be noted that the recess 11211 provides a dedicated mounting slot, allowing the liquid cooling plate 120 to be fixed to the first frame 1121 and concealed, thereby reducing the thickness of the energy storage box 100. The design of the recess 11211 makes the installation of the liquid cooling plate 120 more intuitive and convenient. Installers can more easily and accurately place the liquid cooling plate 120 in the predetermined position, reducing installation time and complexity.

[0100] Specifically, by embedding the edge of the liquid cooling plate 120 into the recess 11211, its edge can be effectively protected from external physical damage, such as impact or wear, thereby extending the service life of the liquid cooling plate 120. The recess 11211 makes the combination of the liquid cooling plate 120 and the frame more compact and aesthetically pleasing, reducing exposed parts and improving the overall appearance quality of the product.

[0101] In some embodiments, the recess 11211 extends inward to a dimension greater than the thickness of the liquid cooling plate 120, which allows the liquid cooling plate 120 to be completely hidden therein.

[0102] Of course, it is not necessary to completely hide it. Even if the thickness of part of the liquid cooling plate 120 is hidden, the thickness of the energy storage box 100 can be reduced.

[0103] like Figures 1 to 6 As shown, in some optional embodiments, the support frame 112 further includes a first support beam 1123 and a second support beam 1124;

[0104] The first support beam 1123 is disposed at the top of the first frame 1121 and extends toward the battery module 130 to support at least a portion of the battery module 130.

[0105] The second support beam 1124 is disposed at the bottom end of the first frame 1121 and extends toward the liquid cooling plate 120 to support at least a portion of the liquid cooling plate 120.

[0106] It should be noted that the first support beam 1123 and the second support beam 1124 are located at the top and bottom of the frame, respectively, forming a more robust frame structure. This design can effectively distribute and bear the weight and pressure from the battery module 130 and the liquid cooling plate 120, improving the stability and durability of the overall device.

[0107] The first support beam 1123 supports the battery module 130, while the second support beam 1124 supports the liquid cooling plate 120. This clearly defined support method helps optimize load distribution, reduce the load pressure on individual components, and extend the service life of the equipment. This design allows for more flexible adjustment of the positions of the battery module 130 and the liquid cooling plate 120 during installation. The support beams provide additional support points, making the installation and adjustment process simpler and more efficient.

[0108] In some alternative embodiments, there are at least two first support beams 1123 and at least two second support beams 1124, and the at least two first support beams 1123 and the at least two second support beams 1124 are spaced apart along the extension direction of the first frame 1121.

[0109] It should be noted that the spacing of at least two first support beams 1123 and at least two second support beams 1124 not only enhances the stability and vibration resistance of the structure, but also optimizes the load distribution and thermal management effect, while improving the convenience of installation and maintenance, as well as the modularity and scalability of the system.

[0110] By arranging multiple first support beams 1123 and second support beams 1124 at intervals, the force applied to the first frame 1121 can be distributed more evenly. This design reduces the risk of individual support beams bearing excessive loads, thereby improving the stability and durability of the overall structure, helping to avoid local stress concentration, reducing the risk of material fatigue and damage, and extending the service life of the equipment.

[0111] In some embodiments, the first support beam 1123 has a rectangular cross-section, and there are two identical beams, which are welded and fixed to the first frame 1121 on both sides to improve the overall modality of the energy storage box 100.

[0112] The second support beam 1124 has two threaded holes on each side, totaling six holes. The second support beam 1124 is connected to the liquid cooling plate 120 through a large flat flange nut, which ensures the overall rigidity of the package while improving the modal stability of the package.

[0113] like Figure 2 As shown, in some alternative embodiments, a seal 140 is also included, which is disposed between the cover 111 and the support frame 112.

[0114] It should be noted that the seal 140 prevents dust, moisture, and other contaminants from entering the housing 110, protecting critical components such as the battery module 130 and liquid cooling plate 120 from external environmental influences. Effective sealing reduces the risk of leakage and contamination, thereby lowering the frequency and cost of maintenance and repair, and extending the system's lifespan.

[0115] In some embodiments, the seal 140 may be a sealing ring.

[0116] In some alternative implementations, the liquid cooling plate 120 is an integrally stamped cold plate.

[0117] It should be noted that the integrated stamping process can form the complex structure of the liquid cooling plate 120 in one step, reducing the time and procedures in the traditional multi-step manufacturing process, thereby improving production efficiency; it can also optimize the flow channel layout and surface contact of the liquid cooling plate 120, thereby improving heat conduction and heat dissipation efficiency. This helps to manage heat more effectively and keep the battery module 130 operating within its optimal temperature range.

[0118] Specifically, the metal sheet is placed in a stamping press, and pressure is applied through a die to shape it into the desired complex form. This step can be completed in a short time, making it suitable for mass production.

[0119] In some embodiments, the liquid cooling plate 120 includes an upper plate and a lower plate. The upper plate and the lower plate are connected and fixed by a brazing process. The liquid cooling channels are placed within a closed cavity formed by the upper plate and the lower plate. This achieves a tight connection between the cooling channels and the plate, improving the heat transfer efficiency of the liquid cooling plate 120 in a compact space.

[0120] like Figure 2 and Figure 6 As shown, in some embodiments, a lifting slot 150 is provided on the side wall of the first frame 1121 so that during lifting, the lifting equipment can be extended into the lifting slot 150 to lift the energy storage box 100.

[0121] The energy storage box provided in this application includes a box body; a liquid cooling plate disposed on the box body and forming a receiving cavity with the box body, the liquid cooling plate having a liquid cooling channel for coolant flow; and a battery module to be housed in the receiving cavity, the liquid cooling plate being used for heat exchange with the battery module.

[0122] By combining the liquid cooling plate with the housing to form a cavity for accommodating the battery module, the thickness of the energy storage box can be reduced, the installation space occupied can be reduced, the energy storage box can be made more compact, and subsequent maintenance can be facilitated. Secondly, it can ensure that the coolant flows evenly in the flow channel, so that all parts of the battery module can be cooled evenly, and the service life of the internal cells can be extended.

[0123] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0124] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An energy storage box (100), characterized in that, include: Box (110); A liquid cooling plate (120) is disposed on the housing (110) and forms a receiving cavity with the housing (110). The liquid cooling plate (120) has a liquid cooling channel for the flow of coolant. A battery module (130) is housed within the housing cavity, and a liquid cooling plate (120) is used for heat exchange with the battery module (130); The box body (110) includes a box cover (111) and a supporting frame (112). The box cover (111) has an opening, and the supporting frame (112) is disposed on the box cover (111) and surrounds the outer periphery of the opening. The liquid cooling plate (120) is disposed on the support frame (112) to seal the opening; The supporting frame (112) includes a first frame (1121) and a second frame (1122), wherein there are at least two first frames (1121) and at least two second frames (1122), and the two first frames (1121) and the at least two second frames (1122) are connected to surround the outer periphery of the liquid cooling plate (120); The length of the first border (1121) is greater than the length of the second border (1122).

2. The energy storage box (100) according to claim 1, characterized in that, The liquid cooling plate (120) has an abutting surface facing the battery module (130). The battery module (130) is disposed on the housing (110) and abuts against the abutting surface.

3. The energy storage box (100) according to claim 2, characterized in that, It also includes a heat-conducting component disposed between the contact surface and the side wall surface of the battery module (130).

4. The energy storage box (100) according to any one of claims 1-3, characterized in that, The first frame (1121) has a recess (11211) extending away from the direction of the liquid cooling plate (120), the recess (11211) being used to mount the liquid cooling plate (120).

5. The energy storage box (100) according to claim 4, characterized in that, The supporting frame (112) also includes a first supporting beam (1123) and a second supporting beam (1124). The first support beam (1123) is disposed at the top of the first frame (1121) and extends toward the battery module (130) to support at least part of the battery module (130). The second support beam (1124) is disposed at the bottom end of the first frame (1121) and extends toward the liquid cooling plate (120) to support at least part of the liquid cooling plate (120).

6. The energy storage box (100) according to claim 5, characterized in that, There are at least two of the first support beam (1123) and the second support beam (1124), and at least two of the first support beam (1123) and at least two of the second support beam (1124) are spaced apart along the extension direction of the first frame (1121).

7. The energy storage box (100) according to any one of claims 1-3, characterized in that, It also includes a seal (140) disposed between the cover (111) and the support frame (112).

8. The energy storage box (100) according to any one of claims 1-3, characterized in that, The liquid cooling plate (120) is an integrated stamped cold plate.

Images