Battery box and battery pack

Abstract

The application provides a battery box and a battery pack, which comprise: a box body, which is formed with a containing space; at least one mounting bracket, which is mounted on a side beam of the box body, one of the mounting bracket and the side beam is provided with a fixing groove structure, and the other is provided with a fixing structure matched with the fixing groove structure, and the mounting bracket and the side beam are fixedly connected through the fixing structure and the fixing groove structure on the side away from the containing space; and the application simplifies the processing technology and improves the assembly efficiency.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to battery boxes and battery packs. Background Technology

[0002] In related technologies, to achieve the installation and connection between the battery pack and the bracket, multiple slots are typically cut into the battery pack casing wall, with a mounting block welded into each slot, and the bracket is then installed through the mounting blocks. This involves multiple steps and processes, from slotting and welding to the final bracket installation, making the process complex and requiring high processing precision. This results in low overall installation efficiency and cannot meet the demands of modern large-scale production for efficient and rapid assembly. Utility Model Content

[0003] The embodiments of this application provide a battery box and battery pack, which simplify the manufacturing process and improve assembly efficiency.

[0004] In a first aspect, embodiments of this application provide a battery box, comprising: a box body having a receiving space; at least one mounting bracket mounted on a side beam of the box body, wherein the mounting bracket and one of the side beams are provided with a fixing groove structure, and the other is provided with a fixing structure that cooperates with the fixing groove structure, and the mounting bracket and the side beam opposite to the receiving space are fixedly connected by the fixing structure and the fixing groove structure.

[0005] The combination of fixed structure and fixed groove structure simplifies the installation process, improves assembly efficiency, and ensures the stability of the connection.

[0006] In some embodiments, a fixing groove structure is provided on the side beam, and a fixing structure is provided on the side of the mounting bracket near the box body, and the fixing structure is snapped into the fixing groove structure.

[0007] Direct mechanical snap-fit ​​fixing reduces operation steps, improves assembly efficiency, and avoids the box deformation problem caused by welding.

[0008] In some embodiments, a plurality of mounting brackets are provided at intervals along a first direction, and a fixing groove structure extends along the first direction and passes through both ends of the side beam.

[0009] By connecting multiple mounting brackets through a fixed slot structure, the processing flow is simplified, assembly efficiency is improved, and production costs are reduced.

[0010] In some embodiments, the fixing structure includes a fixing block, and a snap-fit ​​portion is provided at one end of the fixing groove structure. The snap-fit ​​portion protrudes from the edge of the fixing block along a second direction. The fixing groove structure is adapted to the snap-fit ​​portion, and the snap-fit ​​portion snaps into the fixing groove structure.

[0011] The fitting connection between the snap-fit ​​part and the fixing groove structure enhances the reliability and stability of the connection, and prevents the fixing structure from loosening or shifting during use.

[0012] In some embodiments, the side beam has a positioning part on the bottom surface of the groove in the fixed groove structure, and the fixed block has a positioning mating part that cooperates with the positioning part.

[0013] The cooperation between the positioning part and the positioning mating part provides additional support for the fixing block and enhances the connection strength between the fixing block and the side beam.

[0014] In some embodiments, the positioning part is a protrusion provided on the bottom surface of the groove of the fixing groove structure, and the positioning mating part is a groove provided on the fixing block.

[0015] The tight fit between the protrusions and the grooves provides additional support and constraint for the fixing blocks, improving the overall stability and load-bearing capacity of the battery box.

[0016] In some embodiments, the protrusion extends into a strip along a first direction, and the groove extends through both sides of the fixing block along the first direction, so that the protrusion slides in the groove when the fixing block slides in the fixing groove structure.

[0017] The sliding fit between the protrusion and the groove provides precise guidance for the sliding of the fixing block within the fixing groove structure, improving the accuracy and precision of the installation.

[0018] In some embodiments, the fixing structure further includes a locking member that extends along a third direction, passes through the fixing block, and is fixedly connected to the side beam.

[0019] The locking mechanism provides third-party support to the fixing block and side beam, preventing the fixing block from loosening or detaching during subsequent use and enhancing the stability of the connection.

[0020] In some embodiments, the locking member includes a bolt and an abutment portion, the abutment portion being disposed on the bolt, the bolt passing through the fixing block and being fixedly connected to the side beam, and the abutment portion abutting against the side of the fixing block opposite to the side beam.

[0021] The abutment part precisely limits the position of the fixing block, and the tight connection between the bolt and the mounting hole provides reliable connection strength, ensuring that the fixing block is tightly connected to the side beam.

[0022] In some embodiments, the locking member passes through the groove and is fixedly connected to the protrusion.

[0023] The integration of positioning and installation functions has improved space utilization and made the overall structure more compact and reasonable.

[0024] In some embodiments, a connection hole is provided on one side of the mounting bracket, and the other end of the fixing block passes through the connection hole to be inserted into and fixed to the mounting bracket.

[0025] First, the mounting bracket and the fixing block are firmly connected to form a whole, and then assembled with the side beam. This optimizes the assembly process and improves assembly efficiency.

[0026] In some embodiments, the fixing block is provided with a blocking portion that protrudes from the side of the fixing block and abuts against the side of the mounting bracket near the side beam around the connection hole.

[0027] The blocking part plays a precise positioning role, ensuring that the insertion height of each fixing block in the connecting hole is consistent, thus improving the quality and reliability of the assembly.

[0028] In some embodiments, an adhesive is provided between the fixing block and the fixing groove structure, and the adhesive connects the fixing block to the bottom surface and / or sidewall of the fixing groove structure.

[0029] The adhesive provides bonding strength that tightly binds the fixing block and fixing groove structure together, greatly enhancing the connection strength and improving the stability of the battery box.

[0030] Secondly, embodiments of this application provide a battery pack, including the battery box described above.

[0031] Because it includes the aforementioned battery box, the battery pack possesses the technical advantages of efficient assembly, stable connection, and good overall stability.

[0032] The beneficial effects of the embodiments of this application are as follows: In this embodiment, the mounting bracket and the side beam are directly connected by mechanical fixing. The connection is achieved through the cooperation of the fixing structure and the fixing groove structure, which simplifies the process and significantly improves the installation efficiency. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a perspective view of the battery box provided in an embodiment of this application; Figure 2 This is a top view of a side beam with a mounting bracket provided in an embodiment of this application; Figure 3 This is a partial sectional view of the connection between the mounting bracket and the side beam provided in this application; Figure 4 This is a three-dimensional schematic diagram of the fixing structure provided in the embodiments of this application; In the picture: 100, battery box; 110. Box body; 120. Mounting bracket; 121. Connecting hole; 130. Side beam; 140. Fixed groove structure; 150. Fixed structure; 151. Fixed block; 152. Snap-fit ​​part; 153. Blocking part; 160. Positioning part; 161. Protrusion; 170. Positioning and fitting part; 171. Groove; 180. Locking element; 181. Bolt; 182. Abutment part; 190. Adhesive. Detailed Implementation

[0035] 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 a part of the embodiments of this application, and not all of the 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. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0036] In this embodiment of the application, the first direction X refers to the length direction of the battery box 100, the second direction Z refers to the height direction of the battery box 100, and the third direction Y refers to the width direction of the battery box 100. However, these directions should not be regarded as absolute directional restrictions. For example, the first direction X may also be biased to a certain extent from the length direction of the battery pack 200.

[0037] In related technologies, to achieve the installation and connection between the battery pack and the bracket, multiple slots are typically cut into the battery pack casing wall, with a mounting block welded into each slot, and the bracket is then installed through the mounting blocks. This involves multiple steps and processes, from slotting and welding to the final bracket installation, making the process complex and requiring high processing precision. This results in low overall installation efficiency and cannot meet the demands of modern large-scale production for efficient and rapid assembly.

[0038] Regarding the above issues, firstly, refer to Figure 1 , Figure 2This application provides a battery box 100, including: a box body 110 forming a receiving space; at least one mounting bracket 120 mounted on a side beam 130 of the box body 110, one of the mounting bracket 120 and the side beam 130 having a fixing groove structure 140, and the other having a fixing structure 150 cooperating with the fixing groove structure 140, the mounting bracket 120 and the side of the side beam 130 away from the receiving space are fixedly connected by the fixing structure 150 and the fixing groove structure 140.

[0039] Understandably, during installation, at least one mounting bracket 120 is installed on the side beam 130 of the housing body 110. One of the mounting brackets 120 and the side beam 130 is provided with a fixing groove structure 140, while the other is provided with a fixing structure 150 that mates with the fixing groove structure 140. This specific structural design allows the mounting bracket 120 and the side beam 130 to achieve a stable fixed connection on the side away from the receiving space via the fixing structure 150 and the fixing groove structure 140.

[0040] The battery box 100 in this embodiment directly connects the mounting bracket 120 and the side beam 130 by mechanical fixing. The connection is achieved through the cooperation of the fixing structure 150 and the fixing groove structure 140, which simplifies the process and significantly improves the installation efficiency.

[0041] Furthermore, since it is not necessary to open multiple slots on the battery pack box wall and weld mounting blocks in each slot, and then install the bracket 120 through the mounting blocks, the embodiments of this application fundamentally avoid the operation of welding directly on the battery pack box. The mechanical fixed connection method will not cause problems such as box deformation due to high welding temperature, effectively ensuring the structural integrity and stability of the battery pack box.

[0042] In some embodiments, reference Figure 1 , Figure 2 A fixing groove structure 140 is provided on the side beam 130, and a fixing structure 150 is provided on the side of the mounting bracket 120 near the box body 110. The fixing structure 150 is snapped into the fixing groove structure 140.

[0043] In this embodiment, by setting a fixing groove structure 140 on the side beam 130 and a fixing structure 150 on the side of the mounting bracket 120 near the box body 110, and by snapping the fixing structure 150 into the fixing groove structure 140, direct mechanical snapping fixation is achieved, which simplifies the installation process, reduces the number of operation steps, and significantly improves the assembly efficiency.

[0044] In some embodiments, reference Figure 1 , Figure 2It includes multiple mounting brackets 120, which are spaced apart along a first direction, and a fixing groove structure 140 extends along the first direction and passes through both ends of the side beam 130.

[0045] Understandably, since the fixing groove structure 140 extends to the end of the side beam 130, the corresponding fixing structure 150 on the mounting bracket 120 can be directly slid into the fixing groove structure 140 from the end of the side beam 130 to achieve initial positioning. Furthermore, multiple mounting brackets 120 are sequentially and spaced apart along the first direction on the side beam 130, with one end of each mounting bracket 120 connected to the fixing groove structure 140, and stably fixed to the side beam 130 by means of the fixing groove structure 140. In this way, multiple mounting brackets 120 are sequentially and securely connected to the side beam 130.

[0046] In this embodiment, the fixing groove structure 140 extends to the end of the side beam 130, so that the fixing structure 150 can slide directly into it from the end. Multiple fixing structures are connected by only one fixing groove structure 140 on the side beam, and the mounting bracket is connected through the fixing structure. There is no need to open multiple grooves on the battery pack box wall, which reduces the processing steps caused by opening multiple grooves, simplifies the processing flow, improves assembly efficiency, and reduces production costs.

[0047] On the other hand, by setting multiple mounting brackets 120 spaced apart along the first direction, and by fixing one end of each mounting bracket 120 stably to the side beam 130 with the aid of a limiting structure, it is ensured that multiple mounting brackets 120 can be stably connected to the side beam 130 in sequence.

[0048] In some embodiments, reference Figure 3 , Figure 4 The fixing structure 150 includes a fixing block 151. The fixing block 151 is located at one end of the fixing groove structure 140 and has a snap-fit ​​part 152. The snap-fit ​​part 152 protrudes from the edge of the fixing block 151 along the second direction Z. The fixing groove structure 140 is adapted to the snap-fit ​​part 152, and the snap-fit ​​part 152 snaps into the fixing groove structure 140.

[0049] Understandably, during installation, one end of the fixing block 151 with the snap-fit ​​part 152 is inserted into the fixing groove structure 140. At this time, the snap-fit ​​part 152 and the fixing groove structure 140 are adapted and connected. The mutual matching and constraint of their shapes ensures that the fixing block 151 is firmly fixed within the fixing groove structure 140. The other end of the fixing block 151 is connected to the mounting bracket 120. In this way, a reliable connection between the side beam 130 and the mounting bracket 120 is achieved.

[0050] In this embodiment, a stable connection between the fixing structure 150 and the side beam 130 is achieved through the locking part 152 of the fixing block 151 and the limiting cooperation between the fixing groove structure 140. The mechanical locking method can prevent the fixing structure 150 from loosening or shifting due to external forces during use, thus enhancing the reliability and stability of the connection.

[0051] On the other hand, the connection method in this embodiment does not require welding. Installation can be completed solely through the cooperation of mechanical structures, which simplifies the installation process and avoids the problem of battery pack deformation caused by welding. In addition, multiple mounting brackets 120 are inserted into a fixed slot structure, which is convenient to operate and greatly improves assembly efficiency through mechanical limiting.

[0052] In some embodiments, reference Figure 3 The side beam 130 has a positioning part 160 on the bottom surface of the groove located in the fixed groove structure 140, and the fixing block 151 has a positioning mating part 170 that cooperates with the positioning part 160.

[0053] Understandably, during installation, the fixing block 151 is slid into the fixing groove structure 140 along the first direction X. As the fixing block 151 slides, the positioning part 160 comes into contact with the positioning mating part 170 and interacts with it to achieve positioning.

[0054] In this embodiment, the mating structure of the positioning part 160 and the positioning mating part 170 provides additional support for the fixing block 151 in the second direction Z. This enhances the connection strength between the fixing block 151 and the side beam 130, making the entire connection structure more stable and reliable, thereby improving the overall stability and load-bearing capacity of the battery box 100.

[0055] In some embodiments, reference Figure 4 The positioning part 160 is a protrusion 161 provided on the bottom surface of the groove of the fixing groove structure 140, and the positioning mating part 170 is a groove 171 provided on the fixing block 151.

[0056] Understandably, when the protrusion 161 is embedded in the groove 171, the two fit together tightly and form a mutual constraint in the second direction Z, providing additional support and constraint force for the fixing block 151, enhancing the connection strength between the fixing block 151 and the side beam 130, thereby improving the overall stability and load-bearing capacity of the battery box 100.

[0057] In some embodiments, reference Figure 1 , Figure 4 The protrusion 161 extends into a long strip along the first direction X, and the groove 171 penetrates both sides of the fixing block 151 along the first direction X, so that when the fixing block 151 slides in the fixing groove structure 140, the protrusion 161 slides in the groove 171.

[0058] Understandably, during installation, the groove 171 of the fixing block 151 is first aligned with the protrusion 161, and then the fixing block 151 is pushed along the first direction X. At this time, the protrusion 161 is embedded in the groove 171, and the two form a sliding fit. During the sliding process of the fixing block 151, the elongated protrusion 161 acts as a guide rail, guiding the groove 171 to move along the first direction X, so that the fixing block 151 can slide within the fixing groove structure 140 according to a predetermined path.

[0059] In this embodiment, the sliding engagement between the protrusion 161 and the groove 171 provides precise guidance for the sliding of the fixing block 151 within the fixing groove structure 140, ensuring that the fixing block 151 can be accurately installed in the designated position, thereby improving the accuracy and precision of the installation.

[0060] In some embodiments, reference Figure 4 The fixed structure 150 also includes a locking member 180, which extends along the third direction Y, passes through the fixed block 151 and is fixedly connected to the side beam 130.

[0061] The locking member 180 extends along the third direction Y. After the initial installation of the fixing block 151 and the fixing groove structure 140 is completed, the locking member 180 passes through the hole on the fixing block 151, so that one end extends to the corresponding position of the side beam 130, and is fixedly connected to the side beam 130 through a specific connection method, such as threaded connection, riveting, etc.

[0062] The locking element 180 constrains the fixing block 151 and the side beam 130 from the third party Y, firmly fixing the fixing block 151 in the fixing groove structure 140 of the side beam 130, preventing the fixing block 151 from loosening or falling off due to vibration, external force or other factors during subsequent use.

[0063] In this embodiment, based on the snap-fit ​​and positioning cooperation between the fixing block 151 and the fixing groove structure 140, the locking member 180 passes through the fixing block 151 along the third direction Y and is fixedly connected to the side beam 130, providing additional fixing protection for the fixing structure 150 and further enhancing the stability and reliability of the connection between the fixing block 151 and the side beam 130. Furthermore, the fixing method using the locking member 180 simplifies the installation and disassembly process. When maintenance or replacement of components is required, simply releasing the fixed connection between the locking member 180 and the side beam 130 allows for easy removal of the fixing block 151 from the fixing groove structure 140, which improves the maintenance efficiency and maintainability of the battery box 100.

[0064] In some embodiments, reference Figure 4The locking member 180 includes a bolt 181 and an abutment part 182. The abutment part 182 is disposed on the bolt 181. The bolt 181 passes through the fixing block 151 and is fixedly connected to the side beam 130. The abutment part 182 abuts against the side of the fixing block 151 away from the side beam 130.

[0065] During installation, the fixing block 151 of the fixing structure 150 is first slid into the fixing groove structure 140 of the side beam 130 along the first direction X, and roughly adjusted to a suitable position. At this time, the fixing block 151 and the fixing groove structure 140 form a preliminary fit. Then, the bolt 181 is passed through the pre-set through hole on the fixing block 151, aligning it with the mounting hole on the bottom surface of the groove of the fixing groove structure 140. Subsequently, by rotating the bolt 181, the bolt 181 is gradually screwed into the mounting hole using the engagement of the threads, until it is tightly connected to the mounting hole. During this process, the abutment portion 182 provided on the bolt 181 gradually approaches and finally tightly abuts against the side of the fixing block 151 opposite to the side beam 130 as the bolt 181 is screwed in, achieving a stable connection between the fixing block 151 and the side beam 130.

[0066] In this embodiment, the abutment portion 182 abuts against the side of the fixing block 151 opposite to the side beam 130, which precisely limits the position of the fixing block 151 within the fixing groove structure 140, ensuring that the fixing block 151 is always stably in the predetermined position. On the other hand, the bolt 181 is tightly connected to the mounting hole by threads, providing reliable connection strength for the fixing structure 150 and the side beam 130, capable of withstanding large tensile and shear forces, ensuring that the fixing block 151 and the side beam 130 are tightly connected and will not loosen or separate due to long-term use or external forces.

[0067] In some embodiments, reference Figure 4 The locking element 180 passes through the groove 171 and is fixedly connected to the protrusion 161.

[0068] Understandably, during installation, the groove 171 of the fixing structure 150 is first slidably engaged with the protrusion 161 of the positioning part. When the fixing structure 150 slides to the appropriate position, the pre-set bolt holes on the fixing structure 150 can be aligned with the mounting holes on the protrusion 161. Subsequently, the bolt 181 is tightened, so that the bolt 181 passes through the bolt holes and groove 171 on the fixing structure 150 in sequence, and finally connects into the mounting hole of the protrusion 161, thereby achieving a reliable connection between the fixing structure 150 and the side beam 130.

[0069] In this embodiment, the mounting holes are set on the protrusion 161, which realizes the integration of positioning and installation functions. The structure of the protrusion 161 is cleverly utilized, eliminating the need to open mounting holes at additional positions on the side beam 130, improving space utilization, and making the overall structure more compact and reasonable.

[0070] In some implementations, refer to Figure 3 , Figure 4 The mounting bracket 120 has a connection hole 121 on one side, and the other end of the fixing block 151 passes through the connection hole 121 and is inserted into and fixed to the mounting bracket 120.

[0071] Understandably, during the battery box assembly process, the mounting bracket 120 is first brought close to the fixing block 151, aligning the fixing block 151 with the connecting hole 121 on one side of the mounting bracket 120. The fixing block 151 is then smoothly passed through the connecting hole 121 to form an insertion state. After insertion, a suitable fixing method, such as using bolts, clips, or welding, is used to firmly fix the fixing block 151 and the mounting bracket 120 together. After completing the above connection, the connected mounting bracket 120 and fixing block 151 are slid together along the first direction X into the fixing groove structure 140 of the side beam 130, completing the main assembly steps of the battery box and ensuring reliable connection and positioning between the components.

[0072] In this embodiment, the mounting bracket 120 and the fixing block 151 are first firmly connected as a whole, and then assembled with the side beam 130, thus optimizing the assembly process. When connecting the mounting bracket 120 and the fixing block 151, the relatively large operating space allows for more convenient and flexible insertion and subsequent fixing actions such as bolt tightening, snap-fit ​​connection, or welding, thereby reducing assembly time and improving overall assembly efficiency. Furthermore, treating the mounting bracket 120 and the fixing block 151 as a whole and sliding it into the fixing groove structure 140 of the side beam 130 facilitates tool clamping, making the operation smoother.

[0073] In some embodiments, reference Figure 4 The fixing block 151 is provided with a blocking part 153, which protrudes from the side of the fixing block 151 and abuts against the side of the mounting bracket 120 around the connecting hole 121 near the side beam 130.

[0074] Understandably, when connecting the fixing block 151 to the mounting bracket 120, the fixing block 151 is aligned with the connecting hole 121 on one side of the mounting bracket 120 and inserted. As the fixing block 151 gradually penetrates into the connecting hole 121, the protruding blocking part 153 on it gradually approaches the side of the mounting bracket 120 near the side beam 130. When the blocking part 153 abuts against the surface of that side of the mounting bracket 120, the fixing block 151 cannot be further inserted into the connecting hole 121 due to the blocking effect of the blocking part 153, thus accurately determining the insertion position of the fixing block 151 in the connecting hole 121. After reaching this accurate position, a suitable fixing method, such as bolt tightening or snap-fit ​​connection, is used to firmly fix the fixing block 151 and the mounting bracket 120 together, ensuring a stable and reliable connection.

[0075] In this embodiment, the blocking part 153 plays a precise positioning role, ensuring that the insertion height of each fixing block 151 in the connection hole 121 is consistent during the batch assembly of battery boxes, thereby improving the quality and reliability of the entire battery box assembly. On the other hand, simply inserting the fixing block 151 into the connection hole 121 until the blocking part 153 abuts against the mounting bracket 120 simplifies the operation process and reduces operation time and the probability of error.

[0076] In some embodiments, reference Figure 4 An adhesive 190 is provided between the fixing block 151 and the fixing groove structure 140, and the adhesive 190 connects the fixing block 151 with the bottom surface and / or side wall of the groove structure 140.

[0077] In this embodiment, by providing adhesive 190 between the fixing block 151 and the fixing groove structure 140, the adhesive force provided by the adhesive 190 can tightly bond the fixing block 151 and the fixing groove structure 140, greatly enhancing the connection strength.

[0078] Secondly, embodiments of this application provide a battery pack, including the battery box 100 described above.

[0079] The battery pack of the second aspect embodiment of this application includes the battery box described above, and therefore has the same technical effects as the embodiments described above, which will not be repeated here.

[0080] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A battery box (100), characterized in that, include: The box body (110) forms a containment space; At least one mounting bracket (120) is mounted on the side beam (130) of the box body (110). One of the mounting bracket (120) and the side beam (130) is provided with a fixing groove structure (140), and the other is provided with a fixing structure (150) that cooperates with the fixing groove structure (140). The mounting bracket (120) and the side beam (130) opposite to the receiving space are fixedly connected by the fixing structure (150) and the fixing groove structure (140).

2. The battery box (100) according to claim 1, characterized in that, The fixing groove structure (140) is provided on the side beam (130), and the fixing structure (150) is provided on the side of the mounting bracket (120) near the box body (110), and the fixing structure (150) is snapped into the fixing groove structure (140).

3. The battery box (100) according to claim 2, characterized in that, The mounting brackets (120) are arranged at intervals along a first direction (X), and the fixing groove structure (140) extends along the first direction (X) and passes through both ends of the side beam (130).

4. The battery box (100) according to claim 2, characterized in that, The fixing structure (150) includes a fixing block (151). One end of the fixing block (151) located in the fixing groove structure (140) is provided with a snap-fit ​​part (152). The snap-fit ​​part (152) protrudes from the edge of the fixing block (151) along the second direction (Z). The fixing groove structure (140) is adapted to the snap-fit ​​part (152), and the snap-fit ​​part (152) snaps into the fixing groove structure (140).

5. The battery box (100) according to claim 4, characterized in that, The side beam (130) has a positioning part (160) on the bottom surface of the groove located in the fixed groove structure (140), and the fixed block (151) has a positioning mating part (170) that cooperates with the positioning part (160).

6. The battery box (100) according to claim 5, characterized in that, The positioning part (160) is a protrusion (161) provided on the bottom surface of the groove of the fixing groove structure (140), and the positioning mating part (170) is a groove (171) provided on the fixing block (151).

7. The battery box (100) according to claim 6, characterized in that, The protrusion (161) extends into a strip along the first direction (X), and the groove (171) extends through both sides of the fixing block (151) along the first direction (X) so that when the fixing block (151) slides in the fixing groove structure (140), the protrusion (161) slides in the groove (171).

8. The battery box (100) according to claim 7, characterized in that, The fixing structure (150) also includes a locking member (180) that extends along a third direction (Y), passes through the fixing block (151), and is fixedly connected to the side beam (130).

9. The battery box (100) according to claim 8, characterized in that, The locking member (180) includes a bolt (181) and an abutment (182). The abutment (182) is disposed on the bolt (181). The bolt (181) passes through the fixing block (151) and is fixedly connected to the side beam (130). The abutment (182) abuts against the side of the fixing block (151) away from the side beam (130).

10. The battery box (100) according to claim 8, characterized in that, The locking member (180) passes through the groove (171) and is fixedly connected to the protrusion (161).

11. The battery box (100) according to any one of claims 4 to 10, characterized in that, The mounting bracket (120) has a connecting hole (121) on one side, and the other end of the fixing block (151) passes through the connecting hole (121) and is inserted into and fixed to the mounting bracket (120).

12. The battery box (100) according to claim 11, characterized in that, The fixing block (151) is provided with a blocking part (153), which protrudes from the side of the fixing block (151) and abuts against the side of the mounting bracket (120) around the connecting hole (121) near the side beam (130).

13. The battery box (100) according to any one of claims 4 to 10, characterized in that, An adhesive (190) is provided between the fixing block (151) and the fixing groove structure (140), and the adhesive (190) connects the fixing block (151) and the bottom surface and / or side wall of the groove structure (140).

14. A battery pack, characterized in that, Includes the battery box (100) as described in any one of claims 1 to 13.

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