Battery box and electric equipment

Abstract

The utility model provides a battery box and electric equipment. The battery box comprises a box cover; the box body comprises a frame and a liquid cooling assembly, a containing cavity is defined by the box cover and the box body, the liquid cooling assembly is located in the containing cavity, and the liquid cooling assembly is provided with a liquid cooling flow channel for cooling liquid to flow; the battery module is located on the liquid cooling assembly, and the liquid cooling assembly is used for conducting heat exchange on the battery module; the frame comprises a body, a cross beam and a mounting beam, the cross beam and the mounting beam are arranged on the body, the first end of the battery module is arranged on the cross beam, and the second end of the battery module is arranged on the mounting beam; wherein the body is provided with a first installation position and a second installation position, the second installation position is located between the first installation position and the installation beam, and the cross beam is installed on one of the first installation position and the second installation position so as to be matched with battery modules of different sizes. According to the battery box, battery modules of different models and electric quantities are matched, more adaptability of the standard box body is achieved, in addition, the structural stability of the whole battery box is improved, and the heat exchange effect is good.

Description

Technical Field

[0001] This application relates to a battery box and electrical equipment, belonging to the field of new energy battery technology. Background Technology

[0002] With the diversification of market development, automakers and new energy battery companies are seeking different battery pack configurations for different vehicle models, influenced by factors such as vehicle purpose, market demand, and policies and regulations. Therefore, the design of the standard battery pack becomes particularly important.

[0003] In conceiving and implementing this application, the applicant discovered at least the following problems: the current battery boxes are all of a single type, which means that the battery modules inside are of a single model, thus failing to meet the different range requirements of customers.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] This application provides a battery box and electrical equipment to match different models of battery modules and capacities, achieving greater adaptability of the standard box. In addition, it improves the structural stability of the entire battery box and provides good heat exchange effect.

[0006] This application provides a battery box, including:

[0007] Box lid;

[0008] The enclosure includes a frame and a liquid cooling assembly. The enclosure cover and the enclosure form a receiving cavity, in which the liquid cooling assembly is located. The liquid cooling assembly has liquid cooling channels for the flow of coolant.

[0009] The battery module is located on the liquid cooling assembly, which is used for heat exchange of the battery module.

[0010] The frame includes a main body, a crossbeam, and a mounting beam. Both the crossbeam and the mounting beam are located on the main body. The first end of the battery module is located on the crossbeam, and the second end of the battery module is located on the mounting beam.

[0011] The main body has a first mounting position and a second mounting position. The second mounting position is located between the first mounting position and the mounting beam. The crossbeam is mounted on one of the first mounting position and the second mounting position to match battery modules of different sizes.

[0012] The beneficial effects of this application are: by setting the first and second mounting positions, the mounting position of the crossbeam can be adjusted according to the size of the battery module to match different models of battery modules and capacities, thereby achieving greater adaptability of the standard box and realizing a platform-based standard battery box design; the liquid cooling component effectively exchanges heat with the battery module through the circulating coolant in the liquid cooling channel, keeping the battery within the optimal operating temperature range and improving battery performance and lifespan.

[0013] In some alternative embodiments, the liquid cooling assembly further includes a liquid cooling nozzle, with an opening in the body through which the liquid cooling nozzle passes and is disposed in the body, a first end of the liquid cooling nozzle located outside the receiving cavity, and a second end of the liquid cooling nozzle located inside the receiving cavity.

[0014] It should be noted that the liquid cooling nozzle provides a connection point between the liquid cooling component and the external coolant circulation system. It allows coolant to enter and exit the liquid cooling component, thereby achieving heat transfer and dissipation. By integrating the nozzle directly onto the liquid cooling component, the number of connection points between the hose and the liquid cooling component is reduced, thereby reducing the potential risk of leakage.

[0015] In some alternative implementations, the extension direction of the liquid cooling nozzle matches the extension direction of the liquid cooling assembly.

[0016] It should be noted that when the extension direction of the water nozzle matches the extension direction of the liquid cooling component, the internal space of the equipment can be utilized more effectively, helping to achieve a more compact layout within a limited space. Matching extension directions also reduce the flow resistance of the coolant when entering or leaving the liquid cooling component. This helps improve the efficiency of fluid flow, thereby enhancing heat dissipation performance.

[0017] In some alternative implementations, the body includes a front border, a left border, a right border, and a rear border, which are connected in sequence.

[0018] The mounting beam is connected to the rear frame, and the crossbeam is located on the side away from the rear frame;

[0019] There are two first mounting positions, located on the left and right borders respectively.

[0020] There are two second mounting positions, located on the left and right sides respectively.

[0021] It should be noted that by connecting the front, left, right, and back borders sequentially to form a closed frame structure, good structural stability and strength can be provided. This design helps resist external pressure and mechanical stress.

[0022] In some alternative embodiments, the first mounting position and the second mounting position located on the same side are spaced apart along a first direction;

[0023] The first direction is the direction from the front border to the back border.

[0024] It should be noted that by arranging multiple mounting positions at intervals along the first direction on the same side, more uniform structural support can be provided. The intervald mounting positions offer flexible component installation options. Users can install components or modules in different locations as needed, thereby adapting to different design requirements or functional requirements.

[0025] In some alternative implementations, the rear frame is a single-layer board;

[0026] The liquid cooling assembly also includes a plug, and the plug, mounting beam, and rear frame are integrally molded structural components.

[0027] It should be noted that one-piece molded structural components eliminate the connection interfaces between different components, thereby improving the integrity and strength of the overall structure. This reduces potential weaknesses and points of failure, enhances system durability, and reduces the number of components and assembly steps. This not only lowers production costs.

[0028] In some alternative implementations, the battery box also includes a seal disposed between the box cover and the frame.

[0029] It should be noted that the seals prevent dust, moisture, and other contaminants from entering the enclosure, protecting critical components such as the battery module 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.

[0030] In some alternative implementations, the battery box also includes multiple hooks located on different sides of the frame.

[0031] It should be noted that the multiple hooks make the battery box more convenient to handle and install. Regardless of the battery box's orientation, it can be lifted and moved using hooks on different sides, improving operational flexibility.

[0032] In some alternative implementations, the liquid cooling assembly is a profile liquid cooling assembly; and / or,

[0033] Some structures within the frame are integrally molded with the liquid cooling components.

[0034] It should be noted that the structural design of the profile liquid cooling assembly can provide additional mechanical strength and rigidity, enhance the structural stability of the entire battery box, and reduce deformation or damage caused by vibration or impact.

[0035] In addition, this application also provides an electrical device, including the aforementioned battery box.

[0036] The battery box and electrical equipment provided in this application include a battery box; the battery box includes: a box cover; a box body, including a frame and a liquid cooling component, the box cover and the box body forming a receiving cavity, the liquid cooling component being located within the receiving cavity, the liquid cooling component having a liquid cooling channel for coolant flow; a battery module, located on the liquid cooling component, the liquid cooling component being used for heat exchange of the battery module; the frame includes a body, a crossbeam and a mounting beam, both the crossbeam and the mounting beam being located on the body, a first end of the battery module being located on the crossbeam, and a second end of the battery module being located on the mounting beam; wherein, the body has a first mounting position and a second mounting position, the second mounting position being located between the first mounting position and the mounting beam, and the crossbeam being mounted to one of the first mounting position and the second mounting position to match battery modules of different sizes.

[0037] By setting the first and second mounting positions, the installation position of the crossbeam can be adjusted according to the size of the battery module to match different models of battery modules and capacities, achieving greater adaptability of the standard box and realizing a platform-based standard battery box design; the liquid cooling component effectively exchanges heat with the battery module through the liquid cooling channel to keep the battery within the optimal operating temperature range, thereby improving battery performance and lifespan. Attached Figure Description

[0038] 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:

[0039] Figure 1 This is a schematic diagram of the battery box structure according to an embodiment of this application;

[0040] Figure 2 This is a first-view exploded view of the battery box according to an embodiment of this application;

[0041] Figure 3 This is a second-view exploded view of the battery box according to an embodiment of this application;

[0042] Figure 4 This is a schematic diagram of the crossbeam in the battery box of this application being installed at the first mounting position;

[0043] Figure 5 This is a schematic diagram of the crossbeam in the battery box of this application being installed at the second mounting position;

[0044] Figure 6 This is a side view of the battery box according to an embodiment of this application;

[0045] Figure 7 for Figure 6 A magnified view of a section at point I;

[0046] Figure 8 for Figure 6 Enlarged view of a section at point II;

[0047] Figure 9 This is a schematic diagram of the assembly of the liquid cooling component and the frame in the battery box according to an embodiment of this application.

[0048] Figure label:

[0049] 100-Battery box; 110-Box body; 111-Box cover; 112-Frame; 1121-Body; 11211-Front frame; 11212-Left frame; 11213-Right frame; 11214-Rear frame; 1122-Crossbeam; 1123-Mounting beam;

[0050] 120 - Liquid cooling assembly; 121 - Liquid cooling water nozzle; 122 - Plug;

[0051] 130 - Seal;

[0052] 140 - Hook;

[0053] 150-Ground threaded bushing;

[0054] 160 - Install threaded bushing;

[0055] 170-Reinforced support;

[0056] 180-Fire extinguisher bracket;

[0057] 190-BMS bracket;

[0058] 101-Wire Harness Bracket. Detailed Implementation

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] In conceiving and implementing this application, the applicant discovered at least the following problems: the current battery boxes are all of a single type, which means that the battery modules inside are of a single model, thus failing to meet the different range requirements of customers.

[0064] The battery box proposed in this application allows the installation position of the crossbeam to be adjusted according to the size of the battery module through the setting of the first and second mounting positions, so as to match different models of battery modules and capacities, thereby achieving greater adaptability of the standard box and realizing a platform-based standard battery box design; the liquid cooling component effectively exchanges heat with the battery module through the circulation of coolant in the liquid cooling channel, keeping the battery within the optimal operating temperature range and improving battery performance and lifespan.

[0065] The battery box provided in this application will be described in detail below with reference to specific embodiments.

[0066] Figure 1 This is a schematic diagram of the battery box structure according to an embodiment of this application. Figure 2 This is a first-view exploded view of the battery box according to an embodiment of this application. Figure 3 This is a second-view exploded view of the battery box according to an embodiment of this application. Figure 4 This is a schematic diagram of the crossbeam in the battery box of this application being installed at the first mounting position. Figure 5 This is a schematic diagram of the crossbeam in the battery box of this application being installed at the second mounting position. Figure 6 This is a side view of the battery box according to an embodiment of this application. Figure 7 for Figure 6 A magnified view of a section at point I. Figure 8 for Figure 6 A magnified view of section II in the middle.

[0067] like Figures 1 to 8 As shown in the figure, this application embodiment proposes a battery box 100, including:

[0068] Box lid 111;

[0069] The housing 110 includes a frame 112 and a liquid cooling assembly 120. The housing cover 111 and the housing 110 form a receiving cavity. The liquid cooling assembly 120 is located in the receiving cavity and has a liquid cooling channel for the flow of coolant.

[0070] The battery module is located on the liquid cooling assembly 120, which is used to exchange heat for the battery module.

[0071] The frame 112 includes a body 1121, a crossbeam 1122 and a mounting beam 1123. Both the crossbeam 1122 and the mounting beam 1123 are located on the body 1121. The first end of the battery module is located on the crossbeam 1122 and the second end of the battery module is located on the mounting beam 1123.

[0072] The main body 1121 has a first mounting position and a second mounting position. The second mounting position is located between the first mounting position and the mounting beam 1123. The crossbeam 1122 is mounted on one of the first mounting position and the second mounting position to match battery modules of different sizes.

[0073] It is understandable that the purpose of the cavity is to house the battery module. It is also easy to understand that the cavity is sealed to prevent side reactions from occurring within the battery cells, which could affect the cell performance.

[0074] For example, the size or shape of the receiving cavity is matched with the size and shape of the battery module. Specifically, it can be adjusted according to the actual situation. This application embodiment does not impose too many restrictions here.

[0075] In this embodiment, the battery module can be configured as a rectangular structure. The battery module can be located inside the housing 110.

[0076] Understandably, housing 110 can be used to support the battery module.

[0077] 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.

[0078] 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.

[0079] 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 the battery module, so that the housing 110 can support the battery module.

[0080] 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.

[0081] It should be noted that by installing a liquid cooling component 120 on the housing 110, and by having liquid cooling channels, the heat generated by the battery module can be effectively dissipated through the coolant. Liquid cooling technology is generally more efficient than air cooling, and can reduce battery temperature more quickly, preventing overheating and improving battery efficiency and lifespan.

[0082] In some embodiments, both the crossbeam 1122 and the mounting beam 1123 are welded to the body 1121 to improve installation strength.

[0083] The battery module is installed on the crossbeam 1122 and the mounting beam 1123. Since there are two mounting positions for the crossbeam 1122, it means that the crossbeam 1122 can be installed in the first mounting position or the second mounting position, so as to be able to match battery modules of different sizes.

[0084] Specifically, the second mounting position is located between the first mounting position and the mounting beam 1123, meaning that the second mounting position is closer to the mounting beam 1123, while the first mounting position is farther away from the mounting beam 1123. In other words, the distance between the second mounting position and the mounting beam 1123 is smaller than the distance between the first mounting position and the mounting beam 1123. Therefore, when the battery module is small, the crossbeam 1122 can be mounted on the second mounting position to support the battery module; when the battery module is large, the crossbeam 1122 can be mounted on the first mounting position to support the battery module.

[0085] In some embodiments, the crossbeam 1122 is an aluminum extrusion profile, and the welding position varies to match different modules; the crossbeam 1122 is welded to the liquid cooling component 120 by laser welding. This welding process can ensure the welding strength without damaging the flow channel of the liquid cooling component 120; changing only one crossbeam 1122 can meet the matching of different modules with different power, which not only reduces the design cost and controls the manufacturing cost, but also realizes the platform design.

[0086] Through the above settings, namely the first and second mounting positions, the mounting position of the crossbeam 1122 can be adjusted according to the size of the battery module to match different models of battery modules and capacities, thereby achieving greater adaptability of the standard housing 110 and realizing the platform-based design of the standard battery housing 100; the liquid cooling component 120 effectively exchanges heat with the battery module through the circulating coolant in the liquid cooling channel, keeping the battery within the optimal operating temperature range and improving battery performance and lifespan.

[0087] like Figures 1 to 5 ,as well as Figure 8 As shown, in some optional embodiments, the liquid cooling assembly 120 further includes a liquid cooling nozzle 121, the body 1121 has an opening, the liquid cooling nozzle 121 passes through the opening and is disposed in the body 1121, the first end of the liquid cooling nozzle 121 is located outside the receiving cavity, and the second end of the liquid cooling nozzle 121 is located inside the receiving cavity.

[0088] It should be noted that the liquid cooling nozzle 121 provides a connection point between the liquid cooling assembly 120 and the external coolant circulation system. It allows coolant to enter and exit the liquid cooling assembly 120, thereby achieving heat transfer and dissipation. By integrating the nozzle directly onto the liquid cooling assembly 120, the number of connection points between the hose and the liquid cooling assembly 120 is reduced, thereby reducing the potential risk of leakage.

[0089] In some embodiments, the liquid coolant nozzle 121 is typically designed to provide a good seal to prevent coolant leakage. This is crucial for maintaining the reliability and safety of the system.

[0090] It should be noted that reducing the use of hoses may simplify the installation process, reduce installation time and labor costs, and also reduce the risk of hose aging or damage, thereby improving the long-term reliability of the system.

[0091] In some embodiments, there are two liquid cooling water nozzles 121, one end of which extends outside the box and is connected to the liquid cooling system of the whole vehicle, and the other end is connected to the water nozzle holes of the left frame 11212 and the right frame 11213. The connection with the liquid cooling assembly 120 is ensured by a full weld to ensure liquid cooling sealing.

[0092] In some alternative implementations, the extension direction of the liquid cooling nozzle 121 matches the extension direction of the liquid cooling assembly 120.

[0093] It should be noted that when the extension direction of the water nozzle matches the extension direction of the liquid cooling assembly 120, the internal space of the equipment can be utilized more effectively, helping to achieve a more compact layout within a limited space; the matching extension direction can reduce the flow resistance of the coolant when entering or leaving the liquid cooling assembly 120. This helps to improve the efficiency of fluid flow, thereby enhancing heat dissipation performance.

[0094] Furthermore, this design simplifies the layout of coolant piping, reducing bends and turns. This not only reduces installation complexity but also minimizes potential leak points, improving system reliability.

[0095] like Figure 4 and Figure 5 as well as Figure 8 As shown, in some optional embodiments, the body 1121 includes a front border 11211, a left border 11212, a right border 11213 and a rear border 11214, with the front border 11211, left border 11212, rear border 11214 and right border 11213 connected in sequence.

[0096] Mounting beam 1123 is connected to rear frame 11214, and crossbeam 1122 is located on the side away from rear frame 11214;

[0097] There are two first mounting positions, located on the left frame 11212 and the right frame 11213 respectively;

[0098] There are two second mounting positions, located on the left frame 11212 and the right frame 11213 respectively.

[0099] It should be noted that by sequentially connecting the front frame 11211, left frame 11212, right frame 11213, and rear frame 11214 to form a closed frame structure 112, good structural stability and strength can be provided. This design helps to resist external pressure and mechanical stress.

[0100] In some embodiments, multiple mounting positions (a first mounting position and a second mounting position) are provided on the left frame 11212 and the right frame 11213, providing flexible mounting options.

[0101] Specifically, mounting beam 1123 is connected to rear frame 11214, while crossbeam 1122 is located on the side away from rear frame 11214. This design helps optimize the use of internal space. It can provide more installation space or access for other components, especially in systems requiring complex wiring or conduit.

[0102] In some embodiments, the rear frame 11214, the front frame 11211, and the crossbeam 1122 are made of extruded aluminum profiles.

[0103] In some embodiments, the front frame 11211 is an aluminum extrusion profile, the bottom is a liquid cooling component 120 sealing structure, and the front is a panel structure.

[0104] In some embodiments, after machining, when the front frame 11211 is welded to the liquid cooling assembly 120, it needs to pass through the front end of the liquid cooling nozzle 121 and then perform friction stir welding with the liquid cooling assembly 120. The corners of the parts that are not welded by friction stir are then welded. The overlapping parts of the front frame 11211 and the liquid cooling nozzle 121 are fully welded.

[0105] In some embodiments, the overlapping parts of the front frame 11211, the left frame 11212, and the right frame 11213 are fully welded to ensure the sealing performance inside the box.

[0106] In some embodiments, mounting holes for high and low voltage plugs are provided on the surface of the front frame 11211.

[0107] In some embodiments, the rear frame 11214 is an aluminum extrusion profile, the bottom is a sealing structure for the liquid cooling component 120 and a cavity structure for mounting the module end plate, and the rear is a panel structure.

[0108] In some embodiments, the rear frame 11214 is friction-stirred to the liquid cooling assembly 120, and the corners of the parts that are not friction-stirred are welded; the overlapping parts of the rear frame 11214 with the left frame 11212 and the right frame 11213 are fully welded to ensure the sealing performance inside the box.

[0109] In some alternative embodiments, the first mounting position and the second mounting position located on the same side are spaced apart along a first direction;

[0110] The first direction is the direction from the front border 11211 to the rear border 11214.

[0111] It should be noted that by arranging multiple mounting positions at intervals along the first direction X on the same side, more uniform structural support can be provided. The spaced mounting positions offer flexible component installation options. Users can install components or modules in different locations as needed, thereby adapting to different design requirements or functional requirements.

[0112] Furthermore, this layout allows for more efficient use of the longitudinal space within frame 112. By strategically spacing the mounting positions, the design provides necessary space for other components or systems (such as wiring, cooling pipes, etc.), avoiding overcrowding and interference.

[0113] Specifically, the installation positions spaced apart along the first direction help simplify the management of wiring and conduits. Cables and conduits can be neatly arranged along the direction of frame 112, reducing crossings and tangles, thereby improving the neatness of the system and ease of maintenance.

[0114] In some alternative implementations, the rear frame 11214 is a single-layer board;

[0115] The liquid cooling assembly 120 also includes a plug 122, and the plug 122, mounting beam 1123 and rear frame 11214 are integrally formed structural components.

[0116] It should be noted that one-piece molded structural components eliminate the connection interfaces between different components, thereby improving the integrity and strength of the overall structure. This reduces potential weaknesses and points of failure, enhances system durability, and reduces the number of components and assembly steps. This not only lowers production costs.

[0117] In some embodiments, reducing connection points in the battery box 100 helps reduce the risk of leakage. The one-piece design eliminates the seams between the plug 122, mounting beam 1123, and rear frame 11214, thereby improving the system's sealing and reliability.

[0118] In some embodiments, the use of a single-layer board helps to achieve lightweight design, reducing material usage and overall weight.

[0119] In some alternative embodiments, the battery box 100 also includes a seal 130 disposed between the box cover 111 and the frame 112.

[0120] It should be noted that the seal 130 prevents dust, moisture, and other contaminants from entering the interior of the housing 110, protecting critical components such as the battery module 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.

[0121] In some embodiments, the seal 130 may be a sealing ring.

[0122] In some embodiments, the cover 111 and the frame 112 are connected by bolts, which compresses the sealing ring to achieve the sealing performance of the box 110.

[0123] In some alternative embodiments, the battery box 100 also includes a plurality of hooks 140 located on different sides of the frame 112.

[0124] It should be noted that the design of multiple hooks 140 makes the battery box 100 more convenient to handle and install. Regardless of the orientation of the battery box 100, it can be lifted and moved using hooks 140 on different sides, improving operational flexibility.

[0125] In addition, multiple hooks 140 provide multi-point support, increasing safety during the lifting process. Even if one hook 140 fails, the other hooks 140 can still provide support, reducing the risk of accidental falls.

[0126] Figure 9 This is a schematic diagram of the assembly of the liquid cooling component and the frame in the battery box according to an embodiment of this application, as shown below. Figure 2 and Figure 9 As shown, in some optional embodiments, the liquid cooling assembly 120 is a profile liquid cooling assembly 120; and / or,

[0127] Some structures in frame 112 are integrally formed with liquid cooling component 120.

[0128] It should be noted that the structural design of the profile liquid cooling assembly 120 can provide additional mechanical strength and rigidity, enhance the structural stability of the entire battery box 100, and reduce deformation or damage caused by vibration or impact.

[0129] In some embodiments, there are two liquid cooling components 120. The bottom of the liquid cooling component 120 contains the cavity required for the flow channel of the liquid cooling component 120. The side integrally extruded to form a frame structure, that is, the left side is integrally extruded to form the left frame 11212, and the right side is integrally extruded to form the right frame 11213. The bottom material of the side structure is thicker, which ensures the strength of the frame structure. At the same time, the integral extrusion structure improves the overall strength and modality, reduces the cost of manual welding, and reduces the amount of welding deformation.

[0130] In some embodiments, the left frame 11212 and the right frame 11213 are joined together by friction stir welding. This welding process uses automated equipment, and the welding stress is small and the deformation is small, making it easy to grind. The module assembly area needs to be ground smooth.

[0131] In some embodiments, the battery box 100 further includes a ground threaded bushing 150 and a mounting threaded bushing 160.

[0132] For example, there are 4 ground threaded bushings 150 and 6 mounting threaded bushings 160, all of which are welded to the outside of the left frame 11212 and the right frame 11213; and the threaded bushings are processed first and then the steel wire threaded bushings are driven in to ensure the strength of the threaded connection.

[0133] In some embodiments, the battery box 100 further includes six reinforcing brackets 170, all of which are welded to the outer side of the left frame 11212 and the right frame 11213.

[0134] The hooks 140 are distributed on the outer side of the left and right liquid cooling components 120. Several reinforcing brackets 170 are distributed on the outer side of the left frame 11212 and the right frame 11213. The hooks 140 are welded to the reinforcing brackets 170, so that the frame 112 has sufficient strength to prevent the box 110 from deforming when the whole package is hoisted. At the same time, the brackets also increase the strength of the connection of the hooks 140.

[0135] In some embodiments, the battery box 100 further includes a fire extinguisher bracket 180, a BMS bracket 190, and a wiring harness bracket 101.

[0136] Among them, there are two fire extinguisher brackets 180 and two BMS brackets 190, and two wire harness brackets 101; they are welded to the front frame 11211, the left frame 11212, and the right frame 11213 respectively, which serve to install and fix the electrical components.

[0137] The battery box provided in this application embodiment includes a box cover; a box body, including a frame and a liquid cooling assembly, the box cover and the box body forming a receiving cavity, the liquid cooling assembly being located within the receiving cavity, the liquid cooling assembly having a liquid cooling channel for coolant flow; a battery module, located on the liquid cooling assembly, the liquid cooling assembly being used for heat exchange of the battery module; the frame including a body, a crossbeam and a mounting beam, both the crossbeam and the mounting beam being disposed on the body, a first end of the battery module being disposed on the crossbeam, and a second end of the battery module being disposed on the mounting beam; wherein, the body has a first mounting position and a second mounting position, the second mounting position being located between the first mounting position and the mounting beam, and the crossbeam being mounted on one of the first mounting position and the second mounting position to match battery modules of different sizes.

[0138] By setting the first and second mounting positions, the installation position of the crossbeam can be adjusted according to the size of the battery module to match different models of battery modules and capacities, achieving greater adaptability of the standard box and realizing a platform-based standard battery box design; the liquid cooling component effectively exchanges heat with the battery module through the liquid cooling channel to keep the battery within the optimal operating temperature range, thereby improving battery performance and lifespan.

[0139] In addition, this application embodiment also provides an electrical device, including the battery box 100 described above.

[0140] It should be noted that the specific structure of the battery box 100 will not be limited here; please refer to the above.

[0141] 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.

[0142] 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.

[0143] 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. A battery box (100), characterized in that, include: Box lid (111); The housing (110) includes a frame (112) and a liquid cooling assembly (120), the housing cover (111) and the housing (110) forming a receiving cavity, the liquid cooling assembly (120) being located within the receiving cavity, and the liquid cooling assembly (120) having a liquid cooling channel for the flow of coolant; The battery module is located on the liquid cooling assembly (120), which is used to exchange heat with the battery module. The frame (112) includes a body (1121), a crossbeam (1122), and a mounting beam (1123). The crossbeam (1122) and the mounting beam (1123) are both located on the body (1121). The first end of the battery module is located on the crossbeam (1122), and the second end of the battery module is located on the mounting beam (1123). The main body (1121) has a first mounting position and a second mounting position, the second mounting position being located between the first mounting position and the mounting beam (1123), and the crossbeam (1122) being mounted on one of the first mounting position and the second mounting position to match battery modules of different sizes.

2. The battery box (100) according to claim 1, characterized in that, The liquid cooling assembly (120) further includes a liquid cooling water nozzle (121). The body (1121) has an opening, and the liquid cooling water nozzle (121) passes through the opening and is disposed on the body (1121). The first end of the liquid cooling water nozzle (121) is located outside the receiving cavity, and the second end of the liquid cooling water nozzle (121) is located inside the receiving cavity.

3. The battery box (100) according to claim 2, characterized in that, The extension direction of the liquid cooling nozzle (121) matches the extension direction of the liquid cooling assembly (120).

4. The battery box (100) according to any one of claims 1-3, characterized in that, The main body (1121) includes a front frame (11211), a left frame (11212), a right frame (11213), and a rear frame (11214), wherein the front frame (11211), the left frame (11212), the rear frame (11214), and the right frame (11213) are connected in sequence; The mounting beam (1123) is connected to the rear frame (11214), and the crossbeam (1122) is located on the side away from the rear frame (11214); There are two first mounting positions, which are located on the left frame (11212) and the right frame (11213), respectively. There are two second mounting positions, which are located on the left frame (11212) and the right frame (11213), respectively.

5. The battery box (100) according to claim 4, characterized in that, The first mounting position and the second mounting position, located on the same side, are spaced apart along the first direction; The first direction is the direction from the front border (11211) to the rear border (11214).

6. The battery box (100) according to claim 4, characterized in that, The rear frame (11214) is a single-layer board; The liquid cooling assembly (120) also includes a plug (122), and the plug (122), the mounting beam (1123), and the rear frame (11214) are integrally formed structural components.

7. The battery box (100) according to any one of claims 1-3, characterized in that, The battery box (100) also includes a seal (130) disposed between the box cover (111) and the frame (112).

8. The battery box (100) according to any one of claims 1-3, characterized in that, The battery box (100) also includes a plurality of hooks (140) located on different sides of the frame (112).

9. The battery box (100) according to any one of claims 1-3, characterized in that, The liquid cooling assembly (120) is a profile liquid cooling assembly (120); and / or, Some structures in the frame (112) are integrally formed with the liquid cooling assembly (120).

10. An electrical appliance, characterized in that, Includes the battery box (100) as described in any one of claims 1 to 9.

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