Manufacturing method of a new type of integrated die-cast battery pack box for energy storage

Abstract

The present invention discloses a manufacturing method for a new type of integrated die-cast battery pack box body, comprising the following steps: die-casting, deburring, shot blasting, machining, applying thermal conductive adhesive and installing cooling components, installing aluminum plates, and inspecting and packaging. The manufacturing method of the present invention has simple steps. Through high-pressure casting, the wall thickness of the product is reduced, the rib density and aluminum plates are increased, the load strength of the product can be increased without increasing the overall thickness of the product, and the same cooling effect can be achieved by externally installing the cooling components. At the same time, the assembly accuracy and quality of the box body are greatly improved.

Description

Technical Field

[0001] The present invention relates to a manufacturing method for a new type of integrated die-cast battery pack box body for energy storage. Background Art

[0002] In the existing battery pack box body products, the wall thickness is relatively thick, with a wall thickness dimension of 6 mm. There is a flatness requirement of 2 mm for the bottom of the box body, and it is necessary to process the bottom plane through a machining center to meet the dimensional requirements and ensure that there will be no local protrusions or depressions after the battery cells are assembled. The cooling water pipes are also buried in the casting during the casting process to meet the bearing capacity and cooling requirements of the battery pack box body.

[0003] The above structure results in a relatively heavy finished weight of the entire battery pack box body, large resource consumption, and numerous exhaust risers at the bottom structure after casting, long processing time, which affects production efficiency, and high cost, increasing the process difficulty. Summary of the Invention

[0004] The object of the present invention is to provide a technical solution for a manufacturing method for a new type of integrated die-cast battery pack box body for energy storage in view of the deficiencies of the existing technology. The manufacturing method has simple steps. Through high-pressure casting, the wall thickness of the product is reduced, the rib density and aluminum plates are increased, and the load strength of the product can be increased without increasing the overall thickness of the product. And by externally installing the cooling components, the same cooling effect can be achieved, while greatly improving the assembly accuracy and quality of the box body.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A manufacturing method for a new type of integrated die-cast battery pack box body for energy storage, characterized by including the following steps:

[0007] 1) Die-casting

[0008] First, a die-casting mold is made according to the design requirements of the box body, and then the die-casting material is injected into the die-casting mold at a pouring temperature of 700 °C to 800 °C. After the die-casting material solidifies and cools down, the box body is taken out;

[0009] 2) Deburring

[0010] Deburring treatment is performed on the box body;

[0011] 3) Shot peening

[0012] The box body after deburring treatment is put into a shot peening machine for shot peening processing;

[0013] 4) Machining

[0014] The box body after shot peening treatment is put into a machining center for machining;

[0015] 5) Application of Thermal Conductive Adhesive and Installation of Cooling Component

[0016] a. First, convey the processed box body to the box body conveying mechanism and invert it on the box body conveying mechanism. Start the control box, and input the box body to the assembly table of the assembly box through the box body conveying mechanism to position the box body;

[0017] b. Then start the support mechanism to support the box body through the support mechanism;

[0018] c. Next, inject thermal conductive adhesive into the glue storage barrel in the assembly box. A delivery pump is installed inside it. Through the delivery pump, the thermal conductive adhesive is input into the hose through the fixed pipe on the side of the assembly box, and then conveyed to the glue application and fastening mechanism. At the same time, start the horizontal movement mechanism, and drive the glue application and fastening mechanism to move along the first installation groove and the second installation groove on the box body through the horizontal movement mechanism, and perform glue application to evenly coat the thermal conductive adhesive along the first installation groove and the second installation groove;

[0019] d. After the glue application is completed, raise the height position of the glue application and fastening mechanism through the horizontal movement mechanism. Place the cooling component in the first installation groove and the second installation groove of the box body through the manipulator, and observe the distribution of the thermal conductive adhesive in the first installation groove and the second installation groove, and replenish the glue at the position with less amount;

[0020] 6) Installation of Aluminum Plate

[0021] a. After the glue replenishment is completed, start the aluminum plate conveying mechanism, and convey the aluminum plates to the fixed grooves on the box body in sequence through the aluminum plate conveying mechanism. When conveying, the aluminum plates can be fed from the side close to the aluminum plate conveying mechanism to the side of the box body conveying mechanism, or from the side close to the box body conveying mechanism to the side of the aluminum plate conveying mechanism. Each aluminum plate is preset with screws;

[0022] b. After the aluminum plates are placed, remove the aluminum plate conveying mechanism, start the horizontal movement mechanism, drive the glue application and fastening mechanism to descend, and approach the screws on the aluminum plate until the glue application and fastening mechanism contacts the corresponding screws, and tighten the screws, and then tighten the next screw until all the screws on the same aluminum plate are tightened;

[0023] c. Then tighten the screws on the remaining aluminum plates until all the aluminum plates are fastened. Send out the box body through the box body conveying mechanism, replace the next box body to be processed, and cycle the above steps;

[0024] 7) Inspection and Packaging

[0025] Inspect the processed box bodies. After passing the inspection, they are packaged and shipped.

[0026] The manufacturing method of the present invention has simple steps. Through high-pressure casting, the wall thickness of the product is reduced, the rib density and aluminum plate are increased, and the load strength of the product can be increased without increasing the overall thickness of the product. At the same time, the cooling component is externally installed to achieve the same cooling effect, and the assembly accuracy and quality of the box body are greatly improved.

[0027] Furthermore, the box body conveying mechanism includes a first moving plate, a second moving plate and a third cylinder. The third cylinder is arranged on the bottom surface of the assembly table. The third cylinder is connected to a first boosting block through a third piston rod. The first boosting block is fixed on the second moving plate. The second moving plate is provided with a positioning strip and a support column. The first moving plate is fixedly connected between two second moving plates. The first moving plate is provided with a third clamping plate. Through the third cylinder, the second moving plate and the first moving plate can be driven to move horizontally through the third piston rod, meeting the conveying requirements of the box body. The positioning strip can be embedded into the groove on the side wall of the assembly table and move horizontally along the groove, improving the stability of the movement of the first moving plate and the second moving plate, preventing the third piston rod from bearing the weight, and the support column can support the box body, facilitating the overall clamping of the box body by the assembly table.

[0028] Furthermore, the assembly table is fixed above the bottom plate. The bottom plate is installed in the assembly box through a fixing strip. The assembly table is provided with a first clamping plate. The bottom plate is symmetrically provided with side plates. The side plates are provided with lateral clamping components to realize the clamping and positioning of the box body. The bottom plate improves the stability and reliability of the installation of the assembly table. The first clamping plate can clamp and position the other side of the box body, and cooperate with the third clamping plate to clamp the box body during use. The side plates improve the stability and reliability of the installation of the lateral clamping components. Through the lateral clamping components, the box body can be clamped from both sides, improving the overall clamping stability of the box body and further improving the assembly accuracy and quality.

[0029] Furthermore, the lateral clamping component includes a second cylinder, a horizontal plate and a second clamping plate. The second cylinder is arranged on the side plate. The second cylinder is connected to the horizontal plate through a second piston rod. The horizontal plate is movably connected to the top of the side plate. The second clamping plate is arranged on the horizontal plate. The horizontal plate is provided with a T-shaped strip, and the side plate is provided with a T-shaped groove. The T-shaped strip matches the T-shaped groove. Through the second cylinder, the horizontal plate can be driven to approach or move away from the assembly table through the second piston rod to realize the clamping or loosening of the box body. The stability and reliability of the movement of the horizontal plate are greatly improved through the T-shaped strip and the T-shaped groove.

[0030] Further, the supporting mechanism includes a fourth cylinder, a first lifting plate and a supporting block. The fourth cylinder is arranged on the bottom plate. The fourth cylinder is connected to the first lifting plate through a fourth piston rod. The first lifting plate is located below the assembly table. A through groove is provided on the assembly table. The supporting block is arranged on the first lifting plate. The supporting block is matched with the through groove. The fourth cylinder can drive the first lifting plate to move up and down through the fourth piston rod, and then can drive the supporting block to move up and down along the through groove, so as to support the box body and improve the stability during the assembly of the box body.

[0031] Further, the glue application and fastening mechanism includes a second slider, a glue application head, a fifth cylinder and a third motor. The glue application head is arranged at the bottom of the second slider. The glue application head is connected to a hose. A valve is provided on the glue application head. A guide groove and a guide rail are provided on the side surface of the second slider. A second lifting plate is movably connected to the guide rail. The fifth cylinder is arranged on the second slider. The fifth cylinder is connected to the second lifting plate through a fifth piston rod. The third motor is fixed on the second lifting plate. A fastening rod is provided on the third motor. The heat-conducting glue can be input into the glue application head through the hose, and the opening or closing of the glue application head can be controlled through the valve to realize glue application to the first installation groove and the second installation groove. The fifth cylinder can drive the second lifting plate to move up and down along the guide groove and the guide rail through the fifth piston rod, and then drive the fastening rod to move up and down to adjust the height position of the fastening rod. The third motor can drive the fastening rod to rotate, so as to realize the tightening of the screw.

[0032] Further, the horizontal movement mechanism includes a first cylinder, a cross beam, a first motor, a first baffle, a second motor and a second baffle. The first cylinder is arranged on the assembly box. The first cylinder is connected to the cross beam through a first piston rod. A guide rod is provided on the bottom surface of the cross beam. The guide rod penetrates through the top surface of the assembly box and moves in the vertical direction. The first motor and the first baffle are arranged on the cross beam. The first motor is connected to the first baffle through a first screw rod. A first guide rod is provided between the two first baffles on the other side. First sliders are arranged on both the first guide rod and the first screw rod. A second guide rod is provided between the two first sliders. The second motor and the second baffle are respectively arranged on the first sliders. The second motor is connected to the second baffle through a second screw rod. A second slider is arranged on the second guide rod and the second screw rod. The first cylinder can drive the cross beam to move up and down through the first piston rod, and then adjust the height position of the glue application and fastening mechanism. The guide rod improves the stability of the movement of the cross beam and further improves the stability and reliability of the movement of the glue application and fastening mechanism. By driving the first screw rod and the second screw rod to rotate through the first motor and the second motor respectively, the glue application and fastening mechanism can be moved in the horizontal plane to meet the requirements of glue application and screw fastening.

[0033] Further, the aluminum plate conveying mechanism includes two parallel bridges, which are fixedly connected by a first strengthening rod. The bridges are provided with a driving wheel, a driven wheel and a driving motor. The driving motor is connected to the driving wheel, and a conveyor belt is arranged between the driving wheel and the driven wheel. At least two fixed shafts are arranged on the side surfaces of the bridges. Columns are arranged on the fixed shafts near the ends, and the fixed shafts far from the ends are connected to the columns through connecting rods. The columns are connected to the assembly box through a power assembly. The first strengthening rod improves the connection strength and stability between the two bridges, ensuring that the aluminum plates can be stably conveyed into the required fixing grooves. The driving motor, the driving wheel and the driven wheel can make the belt rotate stably, meeting the conveying requirements of the aluminum plates. The fixed shafts improve the connection strength and stability between the bridges and the columns, ensuring that the bridges and the conveyor belt can move horizontally under the action of the power assembly, meeting the feeding requirements of aluminum plates at different positions.

[0034] Further, second boosting blocks are arranged at equal intervals on the conveyor belt. The second boosting blocks can push the aluminum plates into the required fixing grooves, improving the installation accuracy.

[0035] Further, the power assembly includes a sixth cylinder and a support plate. The sixth cylinder is fixed on the outer wall of the assembly box. The sixth cylinder is connected to the column through a sixth piston rod. A second strengthening rod is arranged between the sixth cylinder and the assembly box. The support plate is fixed on the assembly box and is located below the sixth cylinder. A guiding groove is arranged on the support plate. A sliding rod is arranged on the column. The bottom of the sliding rod and the column both move horizontally along the guiding groove. The sixth cylinder can drive the column to move horizontally through the sixth piston rod, and then drive the bridges and the conveyor belt to move horizontally as a whole, meeting the conveying requirements of the aluminum plates. The support plate and the guiding groove improve the stability and reliability of the movement of the column.

[0036] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects:

[0037] 1. The manufacturing method has simple steps. Through high-pressure casting, the wall thickness of the product is reduced, the density of ribs and aluminum plates is increased, and the load strength of the product can be increased without increasing the overall thickness of the product. At the same time, by externally installing the cooling component, the same cooling effect can be achieved, and the assembly accuracy and quality of the box body are greatly improved.

[0038] 2. The third cylinder can drive the second moving plate and the first moving plate to move horizontally through the third piston rod, meeting the conveying requirements of the box body. The positioning strip can be embedded into the groove on the side wall of the assembly table and move horizontally along the groove, improving the stability of the movement of the first moving plate and the second moving plate, preventing the third piston rod from bearing the weight, and the support column can support the box body, facilitating the overall clamping of the box body by the assembly table.

[0039] 3. The heat-conducting glue can be input into the glue applicator head through a hose, and the opening or closing of the glue applicator head can be controlled by a valve to apply glue to the first installation groove and the second installation groove. The fifth cylinder can drive the second lifting plate to move up and down along the guide groove and the guide rail through the fifth piston rod, and then drive the fastening rod to move up and down to adjust the height position of the fastening rod. The third motor can drive the fastening rod to rotate to tighten the screw.

[0040] 4. The first cylinder can drive the cross beam to move up and down through the first piston rod, thereby adjusting the height position of the glue application and fastening mechanism. The guide rod improves the stability of the cross beam movement and further improves the stability and reliability of the movement of the glue application and fastening mechanism. By driving the first screw rod and the second screw rod to rotate respectively by the first motor and the second motor, the glue application and fastening mechanism can be moved in the horizontal plane to meet the requirements of glue application and screw fastening.

[0041] 5. The first reinforcing rod improves the connection strength and stability between the two bridge frames, ensuring that the aluminum plate can be stably transported into the required fixing groove. The driving motor, the driving wheel and the driven wheel can make the belt rotate stably to meet the conveying requirements of the aluminum plate. The fixed shaft improves the connection strength and stability between the bridge frame and the column, ensuring that the bridge frame and the conveyor belt can move horizontally under the action of the power assembly to meet the feeding of aluminum plates at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below with reference to the accompanying drawings:

[0043] Figure 1 is the process flow chart of a manufacturing method of a novel energy storage integrated die-cast battery pack box body of the present invention;

[0044] Figure 2 is the effect diagram of the assembling device in the present invention;

[0045] Figure 3 is the schematic diagram of the clamping structure of the box body in the present invention;

[0046] Figure 4 is the connection schematic diagram between the box body conveying mechanism and the assembling table in the present invention;

[0047] Figure 5 is the schematic diagram of the structure of the box body conveying mechanism in the present invention;

[0048] Figure 6 is the schematic diagram of the structure of the supporting mechanism in the present invention;

[0049] Figure 7 is the schematic diagram of the structure of the glue application and fastening mechanism in the present invention;

[0050] Figure 8 is the schematic diagram of the structure of the aluminum plate conveying mechanism in the present invention;

[0051] Figure 9 It is a schematic structural diagram after the box body is installed in the present invention;

[0052] Figure 10 It is a schematic structural diagram of the box body in the present invention;

[0053] Figure 11 is Figure 10 a partial enlarged view of part Ⅰ in

[0054] Figure 12 is Figure 10 a partial enlarged view of part Ⅱ in

[0055] Figure 13 It is a schematic structural diagram of the cooling component in the present invention.

[0056] In the figure: 1 - assembly box; 2 - control box; 3 - box body conveying mechanism; 4 - guide rod; 5 - cross beam; 6 - first cylinder; 7 - first motor; 8 - first baffle; 9 - first screw; 10 - first guide rod; 11 - first slider; 12 - second motor; 13 - second baffle; 14 - second screw; 15 - second guide rod; 16 - glue - applying and fastening mechanism; 17 - aluminum plate conveying mechanism; 18 - fixed pipe; 19 - hose; 20 - fixed strip; 21 - side plate; 22 - assembly table; 23 - bottom plate; 24 - first clamping plate; 25 - second cylinder; 26 - horizontal plate; 27 - second clamping plate; 28 - box body; 29 - through - slot; 30 - support block; 31 - first moving plate; 32 - third cylinder; 33 - third clamping plate; 34 - second moving plate; 35 - first boosting block; 36 - third piston rod; 37 - positioning strip; 38 - support column; 39 - first lifting plate; 40 - fourth cylinder; 41 - fourth piston rod; 42 - second slider; 43 - glue - applying head; 44 - valve; 45 - fifth cylinder; 46 - guide groove; 47 - guide rail; 48 - second lifting plate; 49 - third motor; 50 - fastening rod; 51 - bridge; 52 - conveyor belt; 53 - second boosting block; 54 - first reinforcing rod; 55 - sixth cylinder; 56 - second reinforcing rod; 57 - sixth piston rod; 58 - column; 59 - fixed shaft; 60 - connecting rod; 61 - support plate; 62 - guide groove; 63 - aluminum plate; 64 - screw; 65 - cooling component; 66 - first installation groove; 67 - second installation groove; 68 - first limiting groove; 69 - second limiting groove; 70 - clamping groove; 71 - second rib; 72 - third rib; 73 - fourth rib; 74 - fixing groove; 75 - fixing column; 76 - first cooling water pipe; 77 - second cooling water pipe; 78 - clamping block; 79 - first installation block; 80 - second installation block. Specific embodiments

[0057] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0058] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0059] It should be noted that the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0060] As Figures 1 to 13 shown, a manufacturing method of a novel integrated die-cast battery pack box body of the present invention includes the following steps:

[0061] 1) Die-casting

[0062] First, a die-casting mold is made according to the design requirements of the box body, and then the die-casting material is injected into the die-casting mold at a pouring temperature of 700°C to 800°C. After the die-casting material is solidified and cooled, the box body is taken out;

[0063] The second rib 71, the third rib 72 and the fourth rib 73 are provided on the box body 28. The third rib 72, the fourth rib 73 and the installation groove are all arranged between the two second ribs 71 on both sides. The installation groove and the third rib 72 are both perpendicular to the second rib 71. The fourth rib 73 is arranged between two adjacent installation grooves or between the installation groove and the third rib 72. Through the design of the second rib 71, the third rib 72 and the fourth rib 73, the strength of the entire box body 28 can be improved, the load-bearing capacity of the entire box body 28 can be increased, and the load capacity of the entire box body 28 is better than the existing structure, and the deformation amount is reduced from 0.384 mm to 0.195 mm.

[0064] A fixing groove 74 is formed between the second rib 71, the third rib 72, the fourth rib 73 and the installation groove. The aluminum plate 63 matches the fixing groove 74. Through the design of the fixing groove 74, it is convenient for the aluminum plate 63 to be stably assembled, so that the aluminum plate 63 is flush with the second rib 71, the third rib 72, the fourth rib 73 and the installation groove, and the overall effect of the box body 28 is improved.

[0065] The housing 28 is provided with fixing posts 75, and the fixing posts 75 are provided with threaded holes. The aluminum plate 63 is provided with through holes. The aluminum plate 63 is fixedly connected to the housing 28 by a first screw 64 passing through the through holes and being limited in the threaded holes.

[0066] The housing 28 is provided with first rib strips, and the first rib strips are provided with positioning grooves. The first rib strips can improve the strength and stability of the housing 28, enabling the housing 28 to increase the product load strength without increasing the overall thickness of the product.

[0067] 2) Deburring

[0068] Deburr the housing.

[0069] 3) Shot peening

[0070] Put the deburred housing into a shot peening machine for shot peening processing.

[0071] 4) Machining

[0072] Put the shot peened housing into a machining center for machining.

[0073] 5) Applying thermal conductive adhesive and installing the cooling component

[0074] a. First, convey the processed housing 28 to the housing conveying mechanism 3 and invert it on the housing conveying mechanism 3. Start the control box 2, and input the housing 28 onto the assembly table 22 of the assembly box 1 through the housing conveying mechanism 3 to position the housing 28.

[0075] The housing conveying mechanism 3 includes a first moving plate 31, a second moving plate 34, and a third cylinder 32. The third cylinder 32 is arranged on the bottom surface of the assembly table 22. The third cylinder 32 is connected to a first boosting block 35 through a third piston rod 36. The first boosting block 35 is fixed to the second moving plate 34. The second moving plate 34 is provided with a positioning strip 37 and support columns 38. The first moving plate 31 is fixedly connected between two second moving plates 34. The first moving plate 31 is provided with a third clamping plate 33. The third cylinder 32 can drive the second moving plate 34 and the first moving plate 31 to move horizontally through the third piston rod 36 to meet the conveying requirements of the housing 28. The positioning strip 37 can be embedded into the groove on the side wall of the assembly table 22 and move horizontally along the groove to improve the moving stability of the first moving plate 31 and the second moving plate 34, preventing the third piston rod 36 from bearing the weight. The support columns 38 can support the housing 28 to facilitate the overall clamping of the housing 28 by the assembly table 22.

[0076] The assembly table 22 is fixed above the bottom plate 23. The bottom plate 23 is installed in the assembly box 1 through the fixing strip 20. The first clamping plate 24 is provided on the assembly table 22. The side plates 21 are symmetrically provided on the bottom plate 23. The lateral clamping assembly is provided on the side plates 21 to realize the clamping and positioning of the box body 28. The bottom plate 23 improves the stability and reliability of the installation of the assembly table 22. The first clamping plate 24 can clamp and position the other side of the box body 28. When in use, it cooperates with the third clamping plate 33 to clamp the box body 28 together. The side plates 21 improve the stability and reliability of the installation of the lateral clamping assembly. Through the lateral clamping assembly, the box body 28 can be clamped from both sides, improving the overall clamping stability of the box body 28 and further improving the assembly accuracy and quality.

[0077] The lateral clamping assembly includes a second cylinder 25, a horizontal plate 26 and a second clamping plate 27. The second cylinder 25 is provided on the side plate 21. The second cylinder 25 is connected to the horizontal plate 26 through a second piston rod. The horizontal plate 26 is movably connected to the top of the side plate 21. The second clamping plate 27 is provided on the horizontal plate 26. T-shaped strips are provided on the horizontal plate 26, and T-shaped grooves are provided on the side plates 21. The T-shaped strips are matched with the T-shaped grooves. Through the second cylinder 25 via the second piston rod, the horizontal plate 26 can be driven to approach or move away from the assembly table 22 to realize the clamping or loosening of the box body 28. The stability and reliability of the movement of the horizontal plate 26 are greatly improved through the T-shaped strips and the T-shaped grooves.

[0078] b. Then start the support mechanism to support the box body 28 through the support mechanism.

[0079] The support mechanism includes a fourth cylinder 40, a first lifting plate 39 and a support block 30. The fourth cylinder 40 is provided on the bottom plate 23. The fourth cylinder 40 is connected to the first lifting plate 39 through a fourth piston rod 41. The first lifting plate 39 is located below the assembly table 22. A through groove 29 is provided on the assembly table 22. The support block 30 is provided on the first lifting plate 39. The support block 30 is matched with the through groove 29. Through the fourth cylinder 40 via the fourth piston rod 41, the first lifting plate 39 can be driven to move up and down, and then the support block 30 can be driven to move up and down along the through groove 29 to realize the support of the box body 28 and improve the stability during the assembly of the box body 28.

[0080] c. Then inject thermal conductive glue into the glue storage barrel in the assembly box 1. A delivery pump is installed inside it. The thermal conductive glue is input into the hose 19 through the fixed pipe 18 on the side of the assembly box 1 by the delivery pump and then transported to the glue application and fastening mechanism 16. At the same time, start the horizontal movement mechanism. The horizontal movement mechanism drives the glue application and fastening mechanism 16 to move along the first installation groove 66 and the second installation groove 67 on the box body 28 and apply glue, so that the thermal conductive glue is evenly coated along the first installation groove 66 and the second installation groove 67. A heating mechanism can be installed in the glue storage barrel to heat the thermal conductive glue to make the thermal conductive glue in a colloidal state for easy flow and transportation.

[0081] d. After the glue application is completed, the height position of the glue application and fastening mechanism 16 is raised through the horizontal movement mechanism. The cooling component 65 is placed in the first installation groove 66 and the second installation groove 67 of the box body 28 by the manipulator, and the distribution of the thermal conductive glue in the first installation groove 66 and the second installation groove 67 is observed, and the positions with less glue are replenished. During the glue application process, the first installation groove and the second installation groove are glued first, and the positions close to the first limiting groove and the second limiting groove are not glued. After the cooling component is installed, the first limiting groove, the second limiting groove and the clamping groove are replenished with glue to reduce the flow of the thermal conductive glue to the outside.

[0082] The glue application and fastening mechanism 16 includes a second slider 42, a glue application head 43, a fifth cylinder 45 and a third motor 49. The glue application head 43 is arranged at the bottom of the second slider 42. The glue application head 43 is connected to the hose 19. A valve 44 is arranged on the glue application head 43. Guide grooves 46 and guide rails 47 are arranged on the side surface of the second slider 42. A second lifting plate 48 is movably connected to the guide rail 47. The fifth cylinder 45 is arranged on the second slider 42. The fifth cylinder 45 is connected to the second lifting plate 48 through a fifth piston rod. The third motor 49 is fixed on the second lifting plate 48. A fastening rod 50 is arranged on the third motor 49. The thermal conductive glue can be input into the glue application head 43 through the hose 19, and the opening or closing of the glue application head 43 is controlled through the valve 44 to realize the glue application to the first installation groove 66 and the second installation groove 67. The fifth cylinder 45 can drive the second lifting plate 48 to move up and down along the guide grooves 46 and the guide rail 47 through the fifth piston rod, and then drive the fastening rod 50 to move up and down to adjust the height position of the fastening rod 50. The third motor 49 can drive the fastening rod 50 to rotate, and the tightening of the screw 64 can be realized.

[0083] The horizontal moving mechanism includes a first cylinder 6, a cross beam 5, a first motor 7, a first baffle 8, a second motor 12 and a second baffle 13. The first cylinder 6 is arranged on the assembly box 1. The first cylinder 6 is connected to the cross beam 5 through a first piston rod. A guide rod 4 is arranged on the bottom surface of the cross beam 5. The guide rod 4 penetrates through the top surface of the assembly box 1 and moves in the vertical direction. The first motor 7 and the first baffle 8 are arranged on the cross beam 5. The first motor 7 is connected to the first baffle 8 through a first screw rod 9. A first guide rod 10 is arranged between the two first baffles 8 on the other side. First sliders 11 are arranged on both the first guide rod 10 and the first screw rod 9. A second guide rod 15 is arranged between the two first sliders 11. The second motor 12 and the second baffle 13 are respectively arranged on the first sliders 11. The second motor 12 is connected to the second baffle 13 through a second screw rod 14. A second slider 42 is arranged on the second guide rod 15 and the second screw rod 14. The first cylinder 6 can drive the cross beam 5 to move up and down through the first piston rod, thereby adjusting the height position of the glue applying and fastening mechanism 16. The guide rod 4 improves the stability of the movement of the cross beam 5, and further improves the stability and reliability of the movement of the glue applying and fastening mechanism 16. By driving the first screw rod 9 and the second screw rod 14 to rotate through the first motor 7 and the second motor 12 respectively, the glue applying and fastening mechanism 16 can be moved in the horizontal plane to meet the requirements of glue applying and screw 64 fastening.

[0084] The cooling assembly 65 includes a cooling water pipe and a fixing assembly. The cooling water pipe is embedded in the installation groove and fixed in the installation groove through heat-conducting glue. The fixing assembly is arranged at the inlet and outlet ends of the cooling water pipe. By embedding the cooling water pipe in the installation groove and connecting and fixing it with heat-conducting glue, the cooling water pipe is prevented from falling off. The vertical cross-section of the cooling water pipe is a D-shaped structure, which improves the stability and reliability of the installation of the cooling water pipe. The cooling water pipe in the present invention includes a first cooling water pipe 76 and a second cooling water pipe 77, and the second cooling water pipe 77 is located inside the first cooling water pipe 76. Both the first cooling water pipe 76 and the second cooling water pipe 77 are in an S-shaped structure. The installation groove includes a first installation groove 66 and a second installation groove 67. The second installation groove 67 is located inside the first installation groove 66. The first installation groove 66 is used to place the first cooling water pipe 76, and the second installation groove 67 is used to place the second cooling water pipe 77.

[0085] The fixing component includes a clamping block 78 and a mounting block. The clamping block 78 is connected to the cooling water pipe through the mounting block. The bottom plate 23 is provided with a limiting groove and a clamping groove 70. The clamping groove 70 communicates with the mounting groove through the limiting groove. The clamping block 78 matches the clamping groove 70, and the mounting block matches the limiting groove. Through the design of the clamping block 78, the mounting block, the clamping groove 70 and the limiting groove, the inlet and outlet ends of the cooling water pipe can be stably connected to the external water pipe, preventing loosening during use and affecting the stability of the connection, resulting in leakage of cooling water. In the present invention, there are two groups of fixing components, which are respectively installed at the inlet and outlet ends of the first cooling water pipe 76 and the second cooling water pipe 77. The mounting block includes a first mounting block 79 and a second mounting block 80. The inlet and outlet ends of the first cooling water pipe 76 and the second cooling water pipe 77 are respectively installed with the first mounting block 79 and the second mounting block 80. The first mounting block 79 and the second mounting block 80 on the same side are fixedly connected through the clamping block 78. The limiting groove includes a first limiting groove 68 and a second limiting groove 69. The first limiting groove 68 is used for installing the first mounting block 79, and the second limiting groove 69 is used for installing the second mounting block 80.

[0086] 6) Aluminum plate installation

[0087] a. After the glue filling is completed, start the aluminum plate conveying mechanism 17, and sequentially convey the aluminum plates 63 to the fixing grooves 74 on the box body 28 through the aluminum plate conveying mechanism 17. When conveying, the aluminum plates 63 can be discharged from the side close to the aluminum plate conveying mechanism 17 to the side of the box body conveying mechanism 3, or the aluminum plates 63 can be discharged from the side close to the box body conveying mechanism 3 to the side of the aluminum plate conveying mechanism 17. Each aluminum plate 63 is preset with a screw 64;

[0088] The aluminum plate conveying mechanism 17 includes two parallelly arranged bridge frames 51. The two bridge frames 51 are fixedly connected through a first reinforcing rod 54. The bridge frames 51 are provided with a driving wheel, a driven wheel and a driving motor. The driving motor is connected to the driving wheel. A conveyor belt 52 is arranged between the driving wheel and the driven wheel. At least two fixed shafts 59 are arranged on the side surfaces of the bridge frames 51. Columns 58 are arranged on the fixed shafts 59 close to the ends. The fixed shafts 59 far from the ends are connected to the columns 58 through connecting rods 60. The columns 58 are connected to the assembly box 1 through a power assembly. The first reinforcing rod 54 improves the connection strength and stability between the two bridge frames 51, ensuring that the aluminum plates 63 can be stably conveyed to the required fixing grooves 74. The driving motor, the driving wheel and the driven wheel can make the belt rotate stably, meeting the conveying requirements of the aluminum plates 63. The fixed shafts 59 improve the connection strength and stability between the bridge frames 51 and the columns 58, ensuring that the bridge frames 51 and the conveyor belt 52 can move horizontally under the action of the power assembly, meeting the discharging of the aluminum plates 63 at different positions.

[0089] The second boosting blocks 53 are arranged at equal intervals on the conveyor belt 52. The second boosting blocks 53 can push the aluminum plates 63 into the required fixing grooves 74, improving the installation accuracy.

[0090] The power assembly includes a sixth cylinder 55 and a support plate 61. The sixth cylinder 55 is fixed to the outer wall of the assembly box 1. The sixth cylinder 55 is connected to a column 58 through a sixth piston rod 57. A second reinforcing rod 56 is provided between the sixth cylinder 55 and the assembly box 1. The support plate 61 is fixed to the assembly box 1 and is located below the sixth cylinder 55. A guide groove 62 is provided on the support plate 61. A sliding rod is provided on the column 58. The bottom of the sliding rod and the column 58 both move horizontally along the guide groove 62. The sixth cylinder 55 can drive the column 58 to move horizontally through the sixth piston rod 57, thereby driving the bridge 51 and the conveyor belt 52 to move horizontally as a whole, meeting the conveying requirements for the aluminum plate 63. The support plate 61 and the guide groove 62 improve the stability and reliability of the movement of the column 58.

[0091] b. After the aluminum plate 63 is placed, the aluminum plate conveying mechanism 17 is removed, and the horizontal movement mechanism is started to drive the glue-applying and fastening mechanism 16 to descend and approach the screw 64 on the aluminum plate 63 until the glue-applying and fastening mechanism 16 contacts the corresponding screw 64 and tightens the screw 64, and then the next screw 64 is fastened until all the screws 64 on the same aluminum plate 63 are tightened.

[0092] c. Then, the screws 64 on the remaining aluminum plates 63 are tightened until all the aluminum plates 63 are fastened. The box body 28 is sent out through the box body conveying mechanism 3, and the next box body 28 to be processed is replaced, and the above steps are repeated.

[0093] 7) Inspection and packaging

[0094] The box body 28 that has passed the processing is inspected, and after passing the inspection, it is packaged and shipped.

[0095] The manufacturing method of the present invention has simple steps. Through high-pressure casting, the wall thickness of the product is reduced, the rib density and the aluminum plate 63 are increased, and the load strength of the product can be increased without increasing the overall thickness of the product. And installing the cooling component 65 externally can achieve the same cooling effect, and at the same time, the assembly accuracy and quality of the box body 28 are greatly improved.

[0096] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A manufacturing method of a new type of integrated die-cast battery pack box for energy storage, characterized in that It includes the following steps: 1) Die casting First, a die-casting mold is made according to the design requirements of the box body, and then the die-casting material is injected into the die-casting mold at a pouring temperature of 700°C to 800°C. After the die-casting material solidifies and cools down, the box body is taken out; 2) Deburring Deburring treatment is carried out on the box body; 3) Shot peening The box body after deburring treatment is put into a shot peening machine for shot peening processing; 4) Machining The box body after shot peening treatment is put into a machining center for machining; 5) Applying thermal conductive glue and installing cooling components a. First, the processed box body is conveyed to the box body conveying mechanism and inverted on the box body conveying mechanism. The control box is started, and the box body is input onto the assembly table of the assembly box through the box body conveying mechanism, and the box body is positioned; b. Then the support mechanism is started to support the box body through the support mechanism; c. Then, thermal conductive glue is injected into the glue storage barrel in the assembly box. A delivery pump is installed inside it. The thermal conductive glue is input into a hose through a fixed pipe on the side of the assembly box by the delivery pump, and then conveyed to the glue application and fastening mechanism. At the same time, the horizontal movement mechanism is started, and the glue application and fastening mechanism is driven to move along the first installation groove and the second installation groove on the box body through the horizontal movement mechanism, and glue is applied to make the thermal conductive glue evenly coated along the first installation groove and the second installation groove; d. After the glue application is completed, the height position of the glue application and fastening mechanism is lifted through the horizontal movement mechanism. The cooling components are placed in the first installation groove and the second installation groove of the box body by a manipulator, and the distribution of the thermal conductive glue in the first installation groove and the second installation groove is observed, and the positions with less glue are replenished; 6) Installation of aluminum plates a. After the glue replenishment is completed, the aluminum plate conveying mechanism is started, and the aluminum plates are sequentially conveyed into the fixed grooves on the box body through the aluminum plate conveying mechanism. When conveying, the aluminum plates are placed from the side close to the aluminum plate conveying mechanism to the side of the box body conveying mechanism, or from the side close to the box body conveying mechanism to the side of the aluminum plate conveying mechanism. Each aluminum plate is preset with screws; b. After the aluminum plates are placed, the aluminum plate conveying mechanism is removed, the horizontal movement mechanism is started, and the glue application and fastening mechanism is driven to descend and approach the screws on the aluminum plates until the glue application and fastening mechanism contacts the corresponding screws, and the screws are tightened, and then the next screw is tightened until all the screws on the same aluminum plate are tightened; c. Then the screws on the remaining aluminum plates are tightened until all the aluminum plates are fastened. The box body is sent out through the box body conveying mechanism, and the next box body to be processed is replaced, and the above steps are cycled; 7) Inspection and packaging The qualified box bodies after processing are inspected, and after passing the inspection, they are packaged and shipped.

2. The manufacturing method of a novel integrated die-cast battery pack box according to claim 1, characterized in that: The box body conveying mechanism includes a first moving plate, a second moving plate and a third air cylinder. The third air cylinder is arranged on the bottom surface of the assembly table. The third air cylinder is connected to a first boosting block through a third piston rod. The first boosting block is fixed on the second moving plate. The second moving plate is provided with a positioning strip and a support column. The first moving plate is fixedly connected between the two second moving plates. The first moving plate is provided with a third clamping plate.

3. The manufacturing method of a new integrated die-cast battery pack box according to claim 2, characterized in that: The assembly table is fixed above the bottom plate, and the bottom plate is installed in the assembly box through fixing strips. A first clamping plate is provided on the assembly table, and side plates are symmetrically provided on the bottom plate. A lateral clamping assembly is provided on the side plates to clamp and position the box body.

4. The manufacturing method of a new type of integrated die-cast battery pack box according to claim 3, characterized in that: The lateral clamping assembly includes a second cylinder, a horizontal plate, and a second clamping plate. The second cylinder is provided on the side plate. The second cylinder is connected to the horizontal plate through a second piston rod. The horizontal plate is movably connected to the top of the side plate. The second clamping plate is provided on the horizontal plate. A T-shaped strip is provided on the horizontal plate, and a T-shaped groove is provided on the side plate. The T-shaped strip is matched with the T-shaped groove.

5. A manufacturing method of a novel integrated die-cast battery pack box according to claim 3, characterized in that: The support mechanism includes a fourth cylinder, a first lifting plate, and a support block. The fourth cylinder is provided on the bottom plate. The fourth cylinder is connected to the first lifting plate through a fourth piston rod. The first lifting plate is located below the assembly table. A through groove is provided on the assembly table. The support block is provided on the first lifting plate. The support block is matched with the through groove.

6. The manufacturing method of a new integrated die-cast battery pack box according to claim 1, characterized in that: The glue application and fastening mechanism includes a second slider, a glue application head, a fifth cylinder, and a third motor. The glue application head is provided at the bottom of the second slider. The glue application head is connected to the hose. A valve is provided on the glue application head. A guide groove and a guide rail are provided on the side of the second slider. A second lifting plate is movably connected to the guide rail. The fifth cylinder is provided on the second slider. The fifth cylinder is connected to the second lifting plate through a fifth piston rod. The third motor is fixed on the second lifting plate. A fastening rod is provided on the third motor.

7. The manufacturing method of a new integrated die-cast battery pack box according to claim 6, characterized in that: The horizontal movement mechanism includes a first cylinder, a cross beam, a first motor, a first baffle, a second motor, and a second baffle. The first cylinder is provided on the assembly box. The first cylinder is connected to the cross beam through a first piston rod. A guide rod is provided on the bottom surface of the cross beam. The first motor and the first baffle are provided on the cross beam. The first motor is connected to the first baffle through a first screw rod. A first guide rod is provided between the two first baffles on the other side. First sliders are provided on both the first guide rod and the first screw rod. A second guide rod is provided between the two first sliders. The second motor and the second baffle are respectively provided on the first sliders. The second motor is connected to the second baffle through a second screw rod. The second slider is provided on the second guide rod and the second screw rod.

8. A manufacturing method of a new integrated die-cast battery pack housing according to claim 1, characterized in that: The aluminum plate conveying mechanism includes two parallelly arranged bridge frames. The two bridge frames are fixedly connected through a first reinforcing rod. A driving wheel, a driven wheel, and a driving motor are provided on the bridge frames. The driving motor is connected to the driving wheel. A conveyor belt is provided between the driving wheel and the driven wheel. At least two fixed shafts are provided on the sides of the bridge frames. Columns are provided on the fixed shafts near the ends. The fixed shafts far from the ends are connected to the columns through connecting rods. The columns are connected to the assembly box through a power assembly.

9. The manufacturing method of a novel integrated die-cast battery pack box according to claim 8, characterized in that: Second boosting blocks are provided at equal intervals on the conveyor belt.

10. The manufacturing method of a new integrated die-cast battery pack housing according to claim 8, characterized in that: The power assembly includes a sixth cylinder and a support plate. The sixth cylinder is fixed to the outer wall of the assembly box. The sixth cylinder is connected to the column through a sixth piston rod. A second reinforcing rod is provided between the sixth cylinder and the assembly box. The support plate is fixed to the assembly box and is located below the sixth cylinder. A guide groove is provided on the support plate. A sliding rod is provided on the column. The bottom of the sliding rod and the column both move horizontally along the guide groove.

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