Air-cooled lower box body

Abstract

An air-cooled lower box body is applied to bearing a battery module and comprises a cross beam and two end plates which are symmetrically arranged, the end plate comprises a bearing panel and an air cooling panel which are oppositely arranged; the bearing panel is provided with a first rib plate, and the first rib plate is used for limiting the battery module; the cross beam is connected with the bearing panel and is perpendicular to the first rib plates, and the length of the cross beam is matched with the distance between the first rib plates of the two end plates; and the air cooling panel is provided with radiating fins. According to the utility model, the symmetrically arranged end plates are used for bearing the battery modules, the first rib plates and the cross beams are arranged for jointly limiting the positions of the battery modules on the end plates, and the positions of the first rib plates and the cross beams are adjusted according to the specifications of the battery modules, so that the lower box body is adaptive to the battery modules with different sizes, and a corresponding lower box body does not need to be produced by re-opening a mold; the production cost is reduced; meanwhile, the radiating fins are arranged below the end plates, so that the radiating requirement of the battery module is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of energy storage, in particular to a forced air cooling lower box. BACKGROUND

[0002] With the expansion of the energy storage market demand, different regions, different customers have different demand for the wind-cooled energy storage electric box power, the traditional wind-cooled electric box lower box not only has slow development cycle, and the supplementary string number electric box needs to be separately opened mold corresponding, not only long development cycle, and high cost, at the same time, the existing mouth organ pipe plus fan side air cooling form cooling efficiency is poor, which indirectly causes the low charging and discharging efficiency of the battery. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that: provide a kind of forced air cooling lower box, solve the problem of high production cost caused by the need for different battery module to be separately opened mold.

[0004] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0005] A forced air cooling lower box is applied to bearing battery module, comprising a crossbeam and two end plates arranged symmetrically;

[0006] The end plate comprises oppositely arranged bearing panel and forced air cooling panel;The bearing panel is provided with a first rib plate, and the first rib plate is used to limit the battery module;The crossbeam is connected with the bearing panel and perpendicular to the first rib plate, and the length of the crossbeam matches the distance between the first rib plates of the two end plates;The forced air cooling panel is provided with a cooling fin.

[0007] In some embodiments, the bearing panel is also provided with a first limiting block, and the first limiting block is located at the edge of the bearing panel and close to the first rib plate.

[0008] In some embodiments, the bearing panel is also provided with a second limiting block, and the second limiting block is arranged at the edge of the bearing panel, and the connecting line of the first limiting block and the second limiting block is parallel to the first rib plate;The height of the first limiting block is greater than that of the second limiting block.

[0009] In some embodiments, at least one intermediate plate is further included, and the intermediate plate is arranged between the two end plates, and the intermediate plate is provided with a forced air cooling panel, and the forced air cooling panel is provided with a cooling fin.

[0010] In some embodiments, the forced air cooling panel of the intermediate plate is provided with a welding step at the butt joint end of the end plate or other intermediate plate, and the welding step is arranged parallel to the first rib plate.

[0011] In some embodiments, the butt end of the end plate is provided with a welding step, which is arranged parallel to the first rib plate.

[0012] In some embodiments, the air-cooled panel is provided with a support step at an end away from the welding step, the support step having a height greater than the heat dissipation fins.

[0013] In some embodiments, the support step is provided with a hoisting hole.

[0014] In some embodiments, the connecting area of the cross beam and the load-bearing panel is provided with an inner concave groove.

[0015] In some embodiments, the cross beam is provided with a positioning groove at an end away from the end surface of the load-bearing panel.

[0016] The air-cooled lower box has the advantages that: the battery module is received by the symmetrically arranged end plates, the first rib plate and the cross beam are arranged to jointly limit the position of the battery module on the end plate, the position of the first rib plate and the cross beam is adjusted according to the specification of the battery module, so that the battery module of different sizes is adapted, the corresponding lower box does not need to be re-opened for production, the production cost is reduced, and the heat dissipation fins are arranged below the end plate to meet the heat dissipation requirement of the battery module. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic view of an air-cooled lower box according to an embodiment of the present application; Figure 1 ;

[0018] Figure 2 FIG. 2 is a schematic view of an end plate of an air-cooled lower box according to an embodiment of the present application;

[0019] Figure 3 FIG. 3 is a side view of an end plate of an air-cooled lower box according to an embodiment of the present application;

[0020] Figure 4 FIG. 4 is a schematic view of a middle plate of an air-cooled lower box according to an embodiment of the present application;

[0021] Figure 5 FIG. 5 is a side view of a middle plate of an air-cooled lower box according to an embodiment of the present application;

[0022] Figure 6 FIG. 6 is a schematic view of an air-cooled lower box according to an embodiment of the present application; Figure 2 ;

[0023] Figure 7 FIG. 7 is a schematic view of a cross beam of an air-cooled lower box according to an embodiment of the present application;

[0024] Figure 8The utility model discloses a cross section of the crossbeam of the air-cooled lower box body.

[0025] Label explanation:

[0026] 1, crossbeam; 11, inner recessed groove; 12, positioning groove; 2, end plate; 21, bearing panel; 211, first muscle board; 212, first limit block; 213, second limit block; 22, air-cooled panel; 221, fin; 222, support step; 223, hoisting hole; 224, electric box fixed support; 3, intermediate plate; 4, welding step. Specific implementation

[0027] In order to explain the technical content of the utility model, the purpose and effect realized, the following will be explained in combination with the embodiment and the drawings.

[0028] Please refer to Figures 1 to 3 An air-cooled lower box body applied to bearing battery module, comprising crossbeam 1 and two end plates 2 arranged symmetrically;

[0029] The end plate 2 comprises bearing panel 21 and air-cooled panel 22 arranged oppositely; The bearing panel 21 is provided with first muscle board 211, and the first muscle board 211 is used for limiting battery module; The crossbeam 1 is connected with the bearing panel 21 and is perpendicular to the first muscle board 211, and the length of the crossbeam 1 matches the distance between the first muscle boards 211 of the two end plates 2; The air-cooled panel 22 is provided with fin 221.

[0030] From the above description, the utility model has the beneficial effects that through the combined design of end plate 2, crossbeam 1 and first muscle board 211, the stable bearing and limiting of battery module are realized. The bearing panel 21 of end plate 2 provides direct support, and the fin 221 on the air-cooled panel 22 effectively improves the heat dissipation capacity. The battery module is transversely limited by the first muscle board 211, ensuring that the position of the battery module on the end plate 2 will not shift. The length of the crossbeam 1 matches the distance between the two end plates 2, making the whole structure more stable, and the crossbeam 1 is installed vertically with the first muscle board 211, further enhancing the limiting effect. In addition, the design of the fin 221 of the air-cooled panel 22 of the end plate 2 makes the air circulation more smooth, optimizes the heat dissipation efficiency, and ensures that the battery module will not affect its performance and service life due to high temperature during the working process. Facing different specifications of battery module, the position of the first muscle board 211 and the crossbeam 1 is adjusted according to the specification of the battery module, so as to adapt to battery modules of different sizes, without the need to re-open the mold to produce corresponding lower box body, reducing the production cost.

[0031] Preferably, the first muscle board 211 can also be used to shield the structural glue generated by the gluing of the battery module and the end plate 2, preventing the structural glue from overflowing.

[0032] Please refer to Figures 2 to 3 In some embodiments, the bearing panel 21 is further provided with a first limiting block 212, which is located at the edge of the bearing panel 21 and close to the first rib plate 211.

[0033] As can be seen from the above description, the first limiting block 212 is added to the bearing panel 21, which makes the battery module better fixed in the height direction. The first limiting block 212 is arranged close to the first rib plate 211, which not only ensures the limiting effect, but also does not interfere with other structures, making the overall design more compact and reasonable. The setting of the limiting block is particularly important for high-precision battery module installation, which can ensure the fit of the battery module and the box and improve the overall reliability of the equipment. In addition, this limiting method does not require additional fasteners, reducing the assembly steps, improving production efficiency, reducing maintenance costs, and improving product durability.

[0034] In some embodiments, the bearing panel 21 is further provided with a second limiting block 213, which is located at the edge of the bearing panel 21 and the line connecting the first limiting block 212 and the second limiting block 213 is parallel to the first rib plate 211; the height of the first limiting block 212 is greater than that of the second limiting block 213.

[0035] As can be seen from the above description, by adding the second limiting block 213 and adopting the design of different heights of the first limiting block 212 and the second limiting block 213, the drawer type installation method of the battery module is realized. This design of high front and low back can effectively avoid the interference problem when pushing into the electric cabinet, so that the battery module can smoothly enter the designated position, improving the assembly efficiency. Especially in the process of large-scale production and assembly, this design can reduce the obstruction in the assembly process, improve the work efficiency, and reduce human operation errors. The application of height difference not only improves the installation convenience of the battery module, but also enhances the self-stability of the battery module, avoiding the difficulty of pushing in or assembly errors caused by the same height of the limiting block.

[0036] Please refer to Figures 4 to 6 In some embodiments, at least one intermediate plate 3 is further included, which is arranged between two end plates 2, and the intermediate plate 3 is provided with a wind-cooled panel 22, which is provided with a heat dissipation fin 221.

[0037] As can be seen from the above description, the addition of the intermediate plate 3 between the end plates 2 allows the box to adapt to wider battery modules, improving the adaptability and flexibility of the product. When the battery module size is large, only the intermediate plate 3 needs to be added, without the need to change the entire box structure, reducing production costs and improving the versatility of the box. In addition, the intermediate plate 3 is also provided with a forced air cooling panel 22 and a fin 221, which helps to further improve the heat dissipation capacity and enhance the forced air cooling effect, ensuring the temperature control performance of the battery module during high-power operation. After adding the intermediate plate 3, the stress uniformity of the entire box structure is also improved, making the box more stable when bearing a large load and reducing the possibility of deformation.

[0038] In some embodiments, the forced air cooling panel 22 of the intermediate plate 3 is provided with a welding step 4 at the abutting end of the end plate 2 or other intermediate plate 3, and the welding step 4 is arranged parallel to the first rib plate 211.

[0039] As can be seen from the above description, by arranging the welding step 4 at the abutting end of the forced air cooling panel 22 of the intermediate plate 3, the detachability and maintainability of the box structure are enhanced. The design of the welding step 4 makes the welding process more standardized, reduces positioning errors during welding, improves welding strength, and ensures the stability of the overall structure. At the same time, the arrangement of the welding step 4 makes the installation and disassembly of the box more convenient, facilitating later maintenance and replacement, especially when the intermediate plate 3 needs to be replaced or the box structure needs to be adjusted, without the need for overall disassembly, greatly reducing maintenance costs.

[0040] In some embodiments, the abutting end of the end plate 2 is provided with a welding step 4, and the welding step 4 is arranged parallel to the first rib plate 211.

[0041] As can be seen from the above description, the welding step 4 is arranged at the abutting end of the end plate 2, making the end plate 2 more stable when connected with other structures, and avoiding loosening or deformation caused by welding errors. This design can effectively improve the overall welding quality of the box, make the welds more uniform, enhance the impact resistance of the structure, and improve the service life of the box. In addition, the arrangement of the welding step 4 makes the assembly process more standardized, reduces the dependence on positioning during welding, and improves production efficiency. At the same time, this design can also enhance the load-bearing capacity of the end plate 2, making the box stable when bearing battery modules of different sizes, and helping to improve the reliability and durability of the overall product.

[0042] In some embodiments, the forced air cooling panel 22 is provided with a support step 222 at the end away from the welding step 4, and the height of the support step 222 is greater than that of the fin 221.

[0043] From the above description, the support step 222 is added at the end of the air-cooled panel 22 away from the welding step 4, so that the cooling fins 221 are not damaged during transportation and installation. Since the cooling fins 221 are usually thin and easy to deform, without the support step 222, the cooling fins 221 may be damaged when subjected to external force impact, affecting the cooling effect. The design of the support step 222 can effectively avoid this situation, so that the cooling fins 221 maintain optimal performance in the working state. In addition, the support step 222 can also enhance the overall strength of the box body, so that the air-cooled panel 22 is not easy to deform when subjected to pressure, improving the structural stability of the product.

[0044] Please refer to Figure 2 and Figure 3 Preferably, the inside of the support step 222 is provided with an electrical box fixing support 224, which can not only be used as an electrical box fixing point, but also as an electrical box grounding point.

[0045] In some embodiments, the support step 222 is provided with a lifting hole 223.

[0046] From the above description, the lifting hole 223 is provided on the support step 222, making the box more convenient during transportation and installation, and improving the work efficiency.

[0047] Please refer to Figure 7 and Figure 8 In some embodiments, the connecting area between the cross beam 1 and the bearing panel 21 is provided with an inner beveled groove 11.

[0048] From the above description, the inner beveled groove 11 is arranged at the connecting area between the cross beam 1 and the bearing panel 21, so that the weld seam after welding does not occupy too much space of the bearing panel 21, avoiding interference with the battery module. In addition, this design can also reduce the welding stress, so that the box structure after welding is more stable, avoiding deformation caused by uneven welding, and improving the reliability and durability of the overall product.

[0049] In some embodiments, the end surface of the cross beam 1 away from the bearing panel 21 is provided with a positioning groove 12.

[0050] From the above description, the positioning groove 12 is arranged at the end surface of the cross beam 1 away from the bearing panel 21. When assembling the battery module, the sliding effect of the battery module and the positioning groove 12 is utilized to make the box smoothly fall into the target assembly area, so that the assembly precision of the box is further improved, avoiding structural instability caused by position deviation during assembly. The design of the positioning groove 12 can improve the production consistency, so that multiple components can be quickly and accurately assembled, improving the production efficiency.

[0051] In summary, the air-cooled lower box provided by the utility model, through the combination design of the end plate, the crossbeam and the first muscle plate, realizes the stable bearing and accurate limiting of the battery module, simultaneously, the heat dissipation effect is optimized in combination with the cooling fin, the safety and the life of the battery module in high-power operation are guaranteed. The limiting block design of high front and low back makes the battery module be able to smoothly slide in, improves the assembly convenience and precision. Through the adjustable first muscle plate and the crossbeam, the battery module of different sizes is adapted, the mold need not be opened again, the production cost is reduced. The addition of the middle plate enhances the adaptability of the box body, makes it be able to flexibly expand to adapt to wider battery module, simultaneously, the stress is balanced, the deformation is reduced, the overall structural stability is improved. The setting of the welding step optimizes the welding process, improves the assembly precision and the impact resistance, and the design of the support step effectively protects the cooling fin, enhances the product durability. The lifting hole on the support step is convenient for transportation and installation, the positioning bevel design of the crossbeam further improves the assembly precision and the production consistency. Overall, the air-cooled lower box is compact in structure, efficient in heat dissipation, simple in assembly, strong in adaptability, reduces the production and maintenance cost, has excellent market application value.

[0052] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. An air-cooled lower box applied to a battery module carrier, characterized in that: The beam and two end plates arranged symmetrically; The end plate comprises oppositely arranged load-bearing panel and air-cooled panel; the load-bearing panel is provided with first rib plate for limiting battery module; the beam is connected with the load-bearing panel and is perpendicular to the first rib plate, the length of the beam matches the distance between the first rib plates of the two end plates; the air-cooled panel is provided with cooling fin.

2. The forced air underbox of claim 1, wherein: The load-bearing panel is further provided with first limiting block, which is located at the edge of the load-bearing panel and close to the first rib plate.

3. The forced air underbox of claim 2, wherein: The load-bearing panel is further provided with second limiting block, which is located at the edge of the load-bearing panel and the connecting line of the first limiting block and the second limiting block is parallel to the first rib plate; the height of the first limiting block is greater than that of the second limiting block.

4. The forced air underbox of claim 1, wherein: Further comprising at least one intermediate plate, which is arranged between two end plates, the intermediate plate is provided with air-cooled panel, which is provided with cooling fin.

5. The forced air underbox of claim 4, wherein: The air-cooled panel of the intermediate plate is provided with welding step at the butt joint end of the end plate or other intermediate plate, which is arranged parallel to the first rib plate.

6. The forced air underbox of claim 1, wherein: The butt joint end of the end plate is provided with welding step, which is arranged parallel to the first rib plate.

7. The forced air underbox of claim 6, wherein: The end of the air-cooled panel away from the welding step is provided with support step, the height of which is greater than that of the cooling fin.

8. The forced air underbox of claim 7, wherein: The support step is provided with lifting hole.

9. The forced air underbox of claim 1, wherein: The connecting area of the beam and the load-bearing panel is provided with concave groove.

10. The forced air underbox of claim 8, wherein: The end surface of the beam away from the load-bearing panel is provided with positioning groove.

Images