High-wear-resistant battery box based on wear-resistant aluminum alloy material

Abstract

The invention discloses a high-wear-resistance battery box body based on a wear-resistant aluminum alloy material. The high-wear-resistance battery box body comprises side surrounding plates, end surrounding plates, a supporting bottom plate and a sealing cover plate, connecting edge beams are welded to the peripheries of the side surrounding plates, the end surrounding plates, the supporting bottom plate and the sealing cover plate. The number of the side coamings and the number of the end coamings are both two, the two side coamings and the two end coamings are arranged at intervals and connected end to end, and the connecting boundary beams at the joints of the side coamings and the end coamings are welded. The supporting bottom plate is welded to the connecting edge beams at the bottom ends of the side surrounding plates and the end surrounding plates through the connecting edge beams on the periphery of the supporting bottom plate. The sealing cover plate is welded with the connecting edge beams at the top ends of the side coamings and the end coaming through the connecting edge beams on the periphery of the sealing cover plate; the battery pack is reasonable in structural design, relatively high in structural strength and rigidity, relatively light in weight and good in sealing performance, the use safety of the battery pack is improved, and the battery pack is suitable for popularization and use.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy equipment, and in particular to a highly wear-resistant battery box based on wear-resistant aluminum alloy material. Background Art

[0002] Batteries have the characteristics of high power, long life, pollution-free, safe, reliable, and light. With the vigorous promotion of new energy vehicles and convenient mobile terminals, batteries have also entered a golden period of development. The industry is developing rapidly. Taking new energy vehicles as an example, batteries can be roughly divided into two categories: starting batteries and power batteries. Starting batteries are used to start the car engine, while power batteries are the main source of power for the car. In order to increase the cruising range of new energy vehicles, it is usually necessary to arrange a larger number of power batteries that occupy a larger space on new energy vehicles. Since battery integration is adopted, in order to achieve the integration of a large number of batteries, the batteries must be installed inside the battery box.

[0003] Battery cases currently on the market are mostly made of common metal materials, such as steel or common aluminum alloys, which have problems such as poor wear resistance, heavy weight, and easy corrosion, affecting the overall performance and service life of the battery system. Especially under complex working conditions, such as driving on dusty and gravelly roads, the battery case is susceptible to wear, resulting in reduced sealing and affecting battery safety. At the same time, steel is prone to tearing at the bends and has poor corrosion resistance. Summary of the invention

[0004] In view of the above-mentioned technical problems, the present invention provides a highly wear-resistant battery case based on wear-resistant aluminum alloy material.

[0005] The technical solution of the present invention is: a highly wear-resistant battery box based on wear-resistant aluminum alloy material, comprising side panels, end panels, a supporting bottom plate and a sealing cover plate; connecting side beams are welded around the side panels, the end panels, the supporting bottom plate and the sealing cover plate;

[0006] Two side panels and two end panels are provided, the two side panels and the two end panels are arranged at intervals and connected end to end, and the connecting edge beams at the connection between the side panels and the end panels are welded;

[0007] The supporting bottom plate is welded to the connecting edge beams at the bottom of each side panel and the end panel through the connecting edge beams around it; the sealing cover plate is welded to the connecting edge beams at the top of each side panel and the end panel through the connecting edge beams around it; wherein, the welding method between two adjacent connecting edge beams is one of TIG welding or CMT welding.

[0008] Furthermore, the preparation method of the battery box comprises the following steps:

[0009] S1. Prepare the side panels, end panels, support bottom panels and sealing cover panels:

[0010] S1-1. Ingredients

[0011] According to weight percentage, respectively weigh 0.66-0.72% of Si, 0.92-1.12% of Fe, 0.43-0.64% of Cu, 0.23-0.41% of Mn, 1.02-1.55% of Mg, 0.95-1.26% of Cr, 0.05-0.08% of Ni, 0.19-0.36% of Zn, 0.02-0.04% of Ti and the balance of aluminum;

[0012] S1-2, smelting and casting

[0013] The raw materials weighed in step S1-1 are melted at 1700-2150° C. for 6-9 hours to obtain an alloy solution, and then the alloy solution is cast into an aluminum ingot, and finally the aluminum ingot is cooled to 80-120° C. and descaled to obtain a plate blank; wherein the casting temperature of the alloy solution is 650-750° C., and the casting speed is 3-6 cm / min;

[0014] S1-3. Post-processing

[0015] The plate blank obtained in step S1-2 is hot rolled into a plate at 480-560°C and 1200-1500°F, and then the plate is quenched at 400-500°C for 20-35s. After the plate is cooled, it is leveled and trimmed to obtain the required side panels, end panels, support bottom panels and sealing cover panels;

[0016] S2. Assembly welding:

[0017] S2-1, welding and connecting the side beams around the side panels, end panels, support bottom panels and sealing cover panels obtained in step S1-3;

[0018] S2-2, the side panels and end panels obtained in step 2-1 are spaced and spliced ​​end to end, and two adjacent connecting side beams are welded; then the supporting bottom plate is welded to the connecting side beams at the bottom of the side panels and the end panels through the connecting side beams thereon; finally, the sealing cover plate is welded to the connecting side beams at the top of the side panels and the end panels through the connecting side beams thereon, and the battery box is obtained;

[0019] Note: The battery case prepared by the above raw material ratio and process has the advantages of high hardness and good wear resistance, which improves the service life and safety of the battery case.

[0020] Furthermore, reinforcing rib nets are provided on the outer side walls of the side panels, end panels, support bottom plates and sealing cover plates;

[0021] Note: By setting up the reinforcing rib net, it is beneficial to improve the structural strength of the battery box and improve the impact resistance of the battery box.

[0022] Furthermore, sealing baffles are provided on the inner side walls of the side panels, end panels, support bottom plates and sealing cover plates; after the side panels, end panels, support bottom plates and sealing cover plates are spliced, two adjacent sealing baffles abut against each other to form a sealing groove; and the side panels and end panels are provided with glue injection holes that are connected to the sealing groove;

[0023] Note: After the side panels, end panels, support bottom plate and sealing cover plate are spliced, use the injection hole to inject sealant into the sealing groove, which is beneficial to improve the sealing of the battery box.

[0024] Furthermore, a plurality of cooling plates are evenly distributed on the support bottom plate through the support seat; a flow channel communicating with two adjacent cooling plates is provided on the support seat; and a liquid adding pipe penetrating the sealing cover plate is provided on the cooling plates on both sides of the upper end surface of each support seat;

[0025] Note: When in use, connect the two liquid filling pipes to the external coolant circulation equipment respectively, and pass the external coolant into the cooling plate, so that the heat generated during the operation of the battery pack can be quickly discharged, ensuring the efficient operation of the battery pack.

[0026] Furthermore, two limit plates are arranged between the support bottom plate and the sealing cover plate, and the two limit plates are slidably engaged with each cooling plate, and spring supports are arranged on the sides of the two limit plates away from each other, and the limit plate close to the support bottom plate is movably connected to the support seat through the spring support thereon; the limit plate close to the sealing cover plate is movably connected to the sealing cover plate through the spring support thereon;

[0027] Note: When in use, place the battery pack between the two limit plates. The two limit plates are moved closer to each other under the action of the corresponding spring supports, so that the battery pack is floated inside the battery box to avoid damage to the battery pack caused by external vibration.

[0028] Furthermore, plug-in beams are arranged around the supporting bottom plate; and docking grooves capable of being connected with the plug-in beams are arranged on the inner side walls of the side panels and the end panels;

[0029] Note: By setting a plug-in beam on the support bottom plate, it is helpful to improve the connection stability between the support bottom plate and the side panels and end panels, and prevent the support bottom plate from deforming or falling off under the pressure of the battery pack.

[0030] Furthermore, the sides of the two limit plates that are close to each other are slidably connected with a plurality of clamping seats, two clamping seats form a group, and a total of an array is provided; the sides of the two clamping seats in the same group that are away from each other are both provided with a damping spring that abuts against the limit plates;

[0031] Note: Using the clamping seat to clamp and fix the battery pack can prevent the battery pack from swinging horizontally during use and causing damage to the connecting lines, and can also prevent the battery pack from rubbing against the inner wall bracket of the battery box.

[0032] The method of use of the present invention is:

[0033] When in use, the side panels and end panels are spaced apart, spliced ​​end to end, and the two adjacent connecting side beams are welded; then the supporting bottom plate is welded to the connecting side beams at the bottom of the side panels and the end panels through the installation folds thereon; the battery pack is placed between the two limit plates, and the two limit plates are pulled and fixed by a spring pull rod, so that the battery pack is fixed between the two limit plates; finally, the sealing cover plate is welded to the connecting side beams at the top of the side panels and the end panels through the installation folds thereon; the two liquid filling pipes are respectively connected to the external coolant circulation equipment, and the external coolant is passed into the cooling plate to discharge the heat generated during the operation of the battery pack.

[0034] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0035] First, the present invention has a reasonable structural design. The wear-resistant aluminum alloy plate prepared by scientifically mixing Si, Fe, Cu, Mn, Mg, Cr, Ni, Zn, Ti and Al is welded to the battery box. At the same time, a reinforcing rib net is arranged on the outside of the battery box to ensure that the battery box is lightweight while ensuring the structural strength and rigidity of the battery box, thereby improving the sealing of the battery box and improving the safety of the battery pack assembly.

[0036] Second, the present invention can timely discharge the heat generated during the operation of the battery pack by arranging a cooling plate inside the battery box and injecting external coolant into the cooling plate, thereby improving the operating efficiency and safety of the battery pack;

[0037] Third, the present invention utilizes two limit plates to float the battery pack inside the battery case, which can cushion the battery pack when the battery case is impacted by external force, thereby preventing the battery pack from being damaged by external impact and also preventing friction damage between the battery pack and the inner wall of the battery case. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a longitudinal sectional view of the present invention;

[0039] Figure 2 It is a front view of the present invention;

[0040] Figure 3 It is a left side view of the present invention;

[0041] Figure 4 The present invention Figure 1A local enlarged schematic diagram of the middle A;

[0042] Figure 5 It is a schematic diagram of the connection between the spiral heat exchange tube and the cooling plate of the present invention;

[0043] Figure 6 It is a schematic diagram of the connection between the cooling plate and the side panels and the end panels of the present invention;

[0044] Figure 7 It is a schematic diagram of the connection between the limiting plate and the cooling plate of the present invention;

[0045] Among them, 1-side panel, 10-sealing baffle, 11-sealing groove, 12-glue injection hole, 2-end panel, 3-support bottom plate, 30-plug-in beam, 31-docking groove, 4-sealing cover plate, 5-connecting side beam, 6-reinforcement rib mesh, 7-cooling plate, 70-support seat, 700-flow channel, 71-liquid adding pipe, 72-spiral heat exchange tube, 8-limiting plate, 80-spring support, 81-threaded pull rod, 82-clamping seat, 820-damping spring. DETAILED DESCRIPTION

[0046] Example 1: Figure 1 , 2 A highly wear-resistant battery box based on wear-resistant aluminum alloy material is shown, comprising a side panel 1, an end panel 2, a support bottom plate 3 and a sealing cover plate 4; the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4 are all rectangular plates, and connecting side beams 5 are welded around the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4;

[0047] like Figure 1 , 2 As shown, two side panels 1 and two end panels 2 are provided, the two side panels 1 and the two end panels 2 are arranged at intervals and connected end to end, and the connecting side beam 5 at the connection between the side panels 1 and the end panels 2 is welded;

[0048] like Figure 1 As shown, the supporting bottom plate 3 is welded to the connecting side beams 5 at the bottom of each side panel 1 and the end panel 2 through the connecting side beams 5 around it; the sealing cover plate 4 is welded to the connecting side beams 5 at the top of each side panel 1 and the end panel 2 through the connecting side beams 5 around it; the battery box is made by using the existing technology; wherein, the welding method between two adjacent connecting side beams 5 is TIG welding.

[0049] Embodiment 2: This embodiment differs from Embodiment 1 in that the method for preparing the battery case comprises the following steps:

[0050] S1. Prepare the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4:

[0051] S1-1. Ingredients

[0052] According to weight percentage, Si 0.66%, Fe 0.92%, Cu 0.43%, Mn 0.23%, Mg 1.02%, Cr 0.95%, Ni 0.05%, Zn 0.19%, Ti 0.02% and the balance of aluminum are weighed respectively;

[0053] S1-2, smelting and casting

[0054] The raw materials weighed in step S1-1 are melted at 1700°C for 6 hours to obtain an alloy solution, and then the alloy solution is cast into an aluminum ingot. Finally, the aluminum ingot is cooled to 80°C and descaled to obtain a plate blank; wherein the alloy solution casting temperature is 650°C and the casting speed is 3 cm / min;

[0055] S1-3. Post-processing

[0056] The plate blank obtained in step S1-2 is hot rolled into a plate at 480°C and 1200T, and then the plate is quenched at 400°C for 20s. After the plate is cooled, it is leveled and trimmed to obtain the required side panel 1, end panel 2, support bottom plate 3 and sealing cover plate 4;

[0057] S2. Assembly welding:

[0058] S2-1, welding and connecting the side beams 5 around the side panels 1, end panels 2, support bottom panels 3 and sealing cover panels 4 obtained in step S1-3;

[0059] S2-2, space the side panels 1 and end panels 2 obtained in step 2-1, splice them end to end, and weld the two adjacent connecting side beams 5; then weld the supporting bottom plate 3 to the connecting side beams 5 at the bottom of the side panels 1 and the end panels 2 through the connecting side beams 5 thereon; finally, weld the sealing cover plate 4 to the connecting side beams 5 at the top of the side panels 1 and the end panels 2 through the connecting side beams 5 thereon, and the battery box can be obtained.

[0060] The battery case prepared by the above-mentioned raw material ratio and process has the advantages of high hardness and good wear resistance, which improves the service life and safety of the battery case.

[0061] Embodiment 3: This embodiment differs from Embodiment 2 in that the method for preparing the battery case comprises the following steps:

[0062] S1. Prepare the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4:

[0063] S1-1. Ingredients

[0064] In terms of weight percentage, 0.72% Si, 1.12% Fe, 0.64% Cu, 0.41% Mn, 1.55% Mg, 1.26% Cr, 0.08% Ni, 0.36% Zn, 0.04% Ti and the balance of aluminum were weighed respectively;

[0065] S1-2, smelting and casting

[0066] The raw materials weighed in step S1-1 are melted at 2150° C. for 9 hours to obtain an alloy solution, and then the alloy solution is cast into an aluminum ingot. Finally, the aluminum ingot is cooled to 120° C. and descaled to obtain a plate blank; wherein the casting temperature of the alloy solution is 750° C. and the casting speed is 6 cm / min;

[0067] S1-3. Post-processing

[0068] The plate blank obtained in step S1-2 is hot rolled into a plate at 560°C and 1500T, and then the plate is quenched at 500°C for 35s. After the plate is cooled, it is leveled and trimmed to obtain the required side panel 1, end panel 2, support bottom plate 3 and sealing cover plate 4;

[0069] S2. Assembly welding:

[0070] S2-1, welding and connecting the side beams 5 around the side panels 1, end panels 2, support bottom panels 3 and sealing cover panels 4 obtained in step S1-3;

[0071] S2-2, space the side panels 1 and end panels 2 obtained in step 2-1, splice them end to end, and weld the two adjacent connecting side beams 5; then weld the supporting bottom plate 3 to the connecting side beams 5 at the bottom of the side panels 1 and the end panels 2 through the connecting side beams 5 thereon; finally, weld the sealing cover plate 4 to the connecting side beams 5 at the top of the side panels 1 and the end panels 2 through the connecting side beams 5 thereon, and the battery box can be obtained.

[0072] Embodiment 4: This embodiment differs from Embodiment 2 in that the method for preparing the battery case comprises the following steps:

[0073] S1. Prepare the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4:

[0074] S1-1. Ingredients

[0075] According to weight percentage, Si 0.69%, Fe 1.02%, Cu 0.55%, Mn 0.36%, Mg 1.25%, Cr 1.15%, Ni 0.06%, Zn 0.22%, Ti 0.03% and the balance of aluminum are weighed respectively;

[0076] S1-2, smelting and casting

[0077] The raw materials weighed in step S1-1 are melted at 1850°C for 8 hours to obtain an alloy solution, and then the alloy solution is cast into an aluminum ingot. Finally, the aluminum ingot is cooled to 110°C and descaled to obtain a plate blank; wherein the alloy solution casting temperature is 720°C and the casting speed is 5 cm / min;

[0078] S1-3. Post-processing

[0079] The plate blank obtained in step S1-2 is hot rolled into a plate at 520°C and 1300F, and then the plate is quenched at 450°C for 30s. After the plate is cooled, it is leveled and trimmed to obtain the required side panel 1, end panel 2, support bottom plate 3 and sealing cover plate 4;

[0080] S2. Assembly welding:

[0081] S2-1, welding and connecting the side beams 5 around the side panels 1, end panels 2, support bottom panels 3 and sealing cover panels 4 obtained in step S1-3;

[0082] S2-2, space the side panels 1 and end panels 2 obtained in step 2-1, splice them end to end, and weld the two adjacent connecting side beams 5; then weld the supporting bottom plate 3 to the connecting side beams 5 at the bottom of the side panels 1 and the end panels 2 through the connecting side beams 5 thereon; finally, weld the sealing cover plate 4 to the connecting side beams 5 at the top of the side panels 1 and the end panels 2 through the connecting side beams 5 thereon, and the battery box can be obtained.

[0083] Embodiment 5: This embodiment differs from Embodiment 1 in that Figure 1 , 2 As shown, the outer side walls of the side panels 1, the end panels 2, the support bottom plate 3 and the sealing cover plate 4 are all provided with reinforcing rib nets 6;

[0084] Providing the reinforcing rib net 6 is beneficial to improving the structural strength of the battery box and improving the impact resistance of the battery box.

[0085] Embodiment 6: This embodiment differs from Embodiment 5 in that Figure 2 , 3 As shown in , 4, the inner walls of the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4 are all provided with sealing baffles 10; after the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4 are spliced, two adjacent sealing baffles 10 abut against each other and form a sealing groove 11; the side panel 1 and the end panel 2 are all provided with a glue injection hole 12 which is connected to the sealing groove 11;

[0086] After the side panels 1, the end panels 2, the support bottom plate 3 and the sealing cover plate 4 are assembled, the sealing glue is injected into the sealing groove 11 through the glue injection hole 12, which is helpful to improve the sealing performance of the battery box.

[0087] Embodiment 7: This embodiment differs from Embodiment 6 in that Figure 1 , 6 As shown, three cooling plates 7 are evenly distributed on the support base plate 3 through the support seat 70; a flow channel 700 communicating with two adjacent cooling plates 7 is provided on the support seat 70; and a liquid adding pipe 71 penetrating the sealing cover plate 4 is provided on the cooling plates 7 on both sides of the upper end surface of each support seat 70;

[0088] When in use, the two liquid filling pipes 71 are respectively connected to the external coolant circulation equipment, and the external coolant is passed into the cooling plate 7, so that the heat generated during the operation of the battery pack can be quickly discharged, ensuring the efficient operation of the battery pack.

[0089] Embodiment 8: This embodiment is different from Embodiment 7 in that five cooling plates 7 are evenly distributed on the supporting base plate 3 through the supporting seat 70 .

[0090] Embodiment 9: This embodiment differs from Embodiment 7 in that Figure 5 As shown, spiral heat exchange tubes 72 are arranged inside the cooling plate 7, and each spiral heat exchange tube 72 is connected to each other;

[0091] By arranging the spiral heat exchange tube 72 inside the cooling plate 7, the heat dissipation uniformity of the battery pack can be improved, thereby improving the working efficiency of the battery pack.

[0092] Embodiment 10: This embodiment differs from Embodiment 9 in that Figure 1 As shown, two limit plates 8 are arranged between the support bottom plate 3 and the sealing cover plate 4, and the two limit plates 8 are slidably engaged with each cooling plate 7, and the two limit plates 8 are arranged with spring supports 80 on the sides away from each other, and the limit plate 8 close to the side of the support bottom plate 3 is movably connected with the support seat 70 through the spring support 80 thereon; the limit plate 8 close to the side of the sealing cover plate 4 is movably connected with the sealing cover plate 4 through the spring support 80 thereon; the two limit plates 8 are fixedly connected by a threaded pull rod 81;

[0093] When in use, the battery pack is placed between the two limit plates 8. The two limit plates 8 are moved closer to each other under the action of the corresponding spring supports 80, so that the battery pack is floated inside the battery box to avoid damage to the battery pack caused by external vibration.

[0094] Embodiment 11: This embodiment differs from Embodiment 10 in that Figure 4As shown, the support bottom plate 3 is provided with plug-in beams 30 on all sides; the inner side walls of the side panels 1 and the end panels 2 are provided with docking grooves 31 capable of being engaged with the plug-in beams 30;

[0095] By providing the plug-in beam 30 on the support base plate 3, it is beneficial to improve the connection stability between the support base plate 3 and the side panels 1 and the end panels 2, and prevent the support base plate 3 from being deformed or falling off under the pressure of the battery pack.

[0096] Embodiment 12 This embodiment differs from Embodiment 11 in that Figure 7 As shown, the sides of the two limit plates 8 that are close to each other are slidably connected with eight clamping seats 82, two clamping seats 82 form a group, and a total of four groups are provided; the sides of the two clamping seats 82 in the same group that are away from each other are both provided with damping springs 820 that abut against the limit plates 8;

[0097] The battery pack is clamped and fixed by the clamping seat 82, which can prevent the battery pack from swinging laterally during use and causing damage to the connection line, and can also prevent the battery pack from rubbing against the inner wall bracket of the battery box.

[0098] Embodiment 13: This embodiment is different from Embodiment 11 in that, on the sides of the two limit plates 8 close to each other, there are 10 clamping seats 82 slidably engaged, and the clamping seats 82 form a group of two, with a total of 5 groups being provided.

[0099] Embodiment 14: This embodiment differs from Embodiment 12 in that the outer side walls of the side panel 1, the end panel 2, the support bottom plate 3 and the sealing cover plate 4 are all sprayed with a silicon carbide wear-resistant coating;

[0100] Silicon carbide wear-resistant coating has the advantages of high anti-peeling performance and high wear resistance, which can protect the battery case and avoid friction damage to the battery case when used under complex working conditions, thereby improving the sealing line of the battery case and thus improving the safety of battery pack use.

[0101] Embodiment 15: The difference between this embodiment and Embodiment 14 is that the welding method between two adjacent connecting side beams 5 is CMT welding.

Claims

1. A highly wear-resistant battery box based on wear-resistant aluminum alloy material, characterized in that: It comprises a side panel (1), an end panel (2), a supporting bottom panel (3) and a sealing cover panel (4); the side panels (1), the end panel (2), the supporting bottom panel (3) and the sealing cover panel (4) are all welded with connecting side beams (5) around their perimeters; The side panels (1) and the end panels (2) are each provided with two, the two side panels (1) and the two end panels (2) are arranged at intervals and connected end to end, and the connecting side beams (5) at the connection between the side panels (1) and the end panels (2) are welded; The supporting bottom plate (3) is welded to the connecting side beams (5) at the bottom ends of the side panels (1) and the end panels (2) through the connecting side beams (5) at the four sides thereof; the sealing cover plate (4) is welded to the connecting side beams (5) at the top ends of the side panels (1) and the end panels (2) through the connecting side beams (5) at the four sides thereof; wherein the welding method between two adjacent connecting side beams (5) is one of TIG welding and CMT welding.

2. The method for preparing a highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 1, characterized in that: The following steps are involved: S1. Prepare the side panels (1), the end panels (2), the support bottom panels (3) and the sealing cover panels (4): S1-1. Ingredients According to weight percentage, Si 0.66-0.72%, Fe 0.92-1.12%, Cu 0.43-0.64%, Mn 0.23-0.41%, Mg 1.02-1.55%, Cr 0.95-1.26%, Ni 0.05-0.08%, Zn 0.19-0.36%, Ti 0.02-0.04% and the balance of aluminum are weighed respectively; S1-2, smelting and casting The raw materials weighed in step S1-1 are melted at 1700-2150° C. for 6-9 hours to obtain an alloy solution, and then the alloy solution is cast into an aluminum ingot, and finally the aluminum ingot is cooled to 80-120° C. and descaled to obtain a plate blank; wherein the alloy solution casting temperature is 650-750° C., and the casting speed is 3-6 cm / min; S1-3. Post-processing The plate blank obtained in step S1-2 is hot rolled into a plate at 480-560°C and 1200-1500°F, and then the plate is quenched at 400-500°C for 20-35 seconds. After the plate is cooled, it is leveled and trimmed to obtain the required side panels (1), end panels (2), support bottom panels (3) and sealing cover panels (4); S2. Assembly welding: S2-1, welding and connecting the side beams (5) around the side panels (1), end panels (2), support bottom panels (3) and sealing cover panels (4) obtained in step S1-3; S2-2, the side panels (1) and the end panels (2) obtained in step 2-1 are spaced apart, spliced ​​end to end, and two adjacent connecting side beams (5) are welded; then the supporting bottom plate (3) is welded to the connecting side beams (5) at the bottom of the side panels (1) and the end panels (2) through the connecting side beams (5) thereon; finally, the sealing cover plate (4) is welded to the connecting side beams (5) at the top of the side panels (1) and the end panels (2) through the connecting side beams (5) thereon, and a battery box is obtained.

3. The highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 1, characterized in that: The outer side walls of the side panels (1), the end panels (2), the supporting bottom plate (3) and the sealing cover plate (4) are all provided with reinforcing rib nets (6).

4. The highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 1, characterized in that: The inner side walls of the side panels (1), the end panels (2), the supporting bottom panels (3) and the sealing cover panels (4) are all provided with sealing baffles (10); after the side panels (1), the end panels (2), the supporting bottom panels (3) and the sealing cover panels (4) are spliced, two adjacent sealing baffles (10) abut against each other to form a sealing groove (11); and the side panels (1) and the end panels (2) are both provided with glue injection holes (12) which are in communication with the sealing groove (11).

5. The highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 1, characterized in that: A plurality of cooling plates (7) are evenly distributed on the support base plate (3) via a support seat (70); a flow channel (700) communicating with two adjacent cooling plates (7) is provided on the support seat (70); and a liquid adding pipe (71) penetrating the sealing cover plate (4) is provided on the cooling plates (7) on both sides of the upper end surface of each support seat (70).

6. A highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 5, characterized in that: Two limit plates (8) are arranged between the supporting base plate (3) and the sealing cover plate (4), and the two limit plates (8) are slidably engaged with each cooling plate (7). A spring support (80) is arranged on the side of the two limit plates (8) away from each other. The limit plate (8) close to the supporting base plate (3) is movably connected to the support seat (70) via the spring support (80) thereon; the limit plate (8) close to the sealing cover plate (4) is movably connected to the sealing cover plate (4) via the spring support (80) thereon.

7. The highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 1, characterized in that: The supporting bottom plate (3) is provided with plug-in beams (30) on all four sides; and the inner side walls of the side panels (1) and the end panels (2) are provided with docking grooves (31) that can be engaged with the plug-in beams (30).

8. The highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 5, characterized in that: The sides of the two limit plates (8) that are close to each other are slidably engaged with a plurality of clamping seats (82), and two of the clamping seats (82) form a group, with a total of an array; the sides of the two clamping seats (82) in the same group that are away from each other are both provided with a damping spring (820) that abuts against the limit plates (8).

9. The highly wear-resistant battery box based on wear-resistant aluminum alloy material according to claim 1, characterized in that: A reinforcing rib net (6) is provided on the side panel (1).

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