Forming equipment for battery pack structural component and working method of forming equipment

Abstract

The invention discloses forming equipment for a battery pack structural member and a working method thereof, relates to the technical field of preparation of battery pack structural members, and aims to solve the technical problem that traditional mold equipment for forming a battery pack structure is single in function. The forming mold main body comprises an upper mold structure and a lower mold structure which is in sliding connection through a positioning pin shaft; the upper mold structure comprises a connecting base A; the connecting base A is arranged on the opposite face of the lower die structure. A limiting seat is arranged on the side, relatively away from the lower die structure, of the connecting base A through a connecting shaft piece. According to the forming equipment mold for the battery pack structural part, the pressure casting cavity can be adjusted by matching driving of the adjusting mechanism with the driving gear ring and the driven adaptive operation structure, so that switching adjustment of different runners is realized, and the functionality of the forming equipment mold for the battery pack structural part is effectively improved; and the thermal management efficiency and the structural suitability of the power battery pack are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack structural component preparation, and more specifically, to a battery pack structural component molding device and a working method thereof. Background Art

[0002] The battery pack's structural components are the core components that support, secure, and protect the internal cells and electrical systems. Their design directly affects the safety, lightweighting, and energy density of the battery pack. The battery pack's structural components primarily include the upper and lower boxes, module brackets and frames, fasteners, and pressure plates. In the current new energy battery pack structure, there are module battery pack structure and non-module battery pack structure, non-module battery pack structure; module module is the intermediate structural unit between the battery cell and the battery pack, which is composed of multiple battery cells connected in series and parallel, and integrates structural frame, heat dissipation system, voltage / temperature sensor and other components; it plays a mechanical support role, and fixes the battery cell through end plates, side plates and fasteners to prevent displacement caused by vibration or impact; Module-free technology skips the module level and integrates the battery cell directly into the battery pack or chassis, forming a flat structure of "battery cell → battery pack"; In a module-free battery pack structure, the liquid cooling system needs to be simultaneously integrated into the lower box of the battery pack structure.

[0003] There are many liquid cooling channel structures in the lower box of the existing module-free battery pack structure, which have a one-way circulation cooling setting through a one-way flow method, and a two-way circulation cooling setting through a two-way flow method. The above two flow channel passing methods are mostly die-casted through an adapted mold, resulting in the battery pack lower box structural parts having corresponding flow channels. The traditional mold equipment for molding the battery pack structure has a single function and cannot effectively switch between different flow channels for preparation. In view of this, we propose a molding equipment for battery pack structural parts. Summary of the Invention

[0004] The purpose of the present invention is to provide a molding device for battery pack structural parts to solve the technical problem that the traditional mold equipment for battery pack structure molding has a single function.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a molding device for battery pack structural parts, comprising a molding die body; the molding die body comprises an upper mold structure and a lower mold structure slidably connected by a positioning pin; the upper mold structure comprises a connecting base A; the connecting base A is arranged on the opposite side of the lower mold structure; the connecting base A is relatively far away from the side of the lower mold structure and is provided with a limit seat through a connecting shaft; a driving gear ring is rotatably provided between the limit seat and the connecting base A through a rotating seat; and the driving gear ring is axially relative to the inner The gap constitutes an adjustment drive cavity; and an adjustment mechanism is provided on the outside of the drive gear ring; wherein, the adjustment drive cavity is movably provided with a driven adaptive operating structure; the connecting base A is provided with an upper core assembly on the side relatively close to the lower mold structure; the lower mold structure includes a lower core assembly; the lower core assembly is arranged on the opposite side of the upper core assembly; wherein, the lower core assembly and the upper core assembly are fitted with each other, so that the gap between the lower core assembly and the upper core assembly and the driven adaptive operating structure forms a die-casting cavity for forming the lower box structure of the battery pack.

[0006] The present invention can adjust the die-casting cavity by adjusting the driving mechanism, cooperating with the driving gear ring and the driven adaptive operating structure setting, thereby realizing the switching adjustment of the settings of different flow channels, thereby effectively improving the functionality of the molding equipment mold of the battery pack structural parts and improving the thermal management efficiency and structural adaptability of the power battery pack.

[0007] Preferably, a demoulding guide seat is provided on the side of the lower mold core assembly relatively away from the upper mold core assembly; a separation demoulding active cavity extending to the outside is provided inside the demoulding guide seat; a connecting base B is provided on the side of the demoulding guide seat relatively away from the lower mold core assembly, and a die-casting feed sleeve is passed through the inside of the connecting base B; a demoulding assembly is provided in the separation demoulding active cavity; the demoulding assembly is connected to the upper mold structure through a folding arm; and the die-casting feed sleeve is movably connected to the demoulding assembly.

[0008] Preferably, the demoulding assembly includes a connecting support plate movably arranged in the separation and demoulding active cavity; a plurality of demoulding ejectors are fixedly provided on the connecting support plate; the demoulding ejectors are elastically connected to the demoulding guide seat through a spring; wherein, the connecting support plates are all hingedly connected to the folding arm.

[0009] Preferably, the adjustment mechanism includes a guide slide arranged on the outside of the driving gear ring; the guide slide is fixed to the connecting base A and the limit seat; a driving cylinder is installed on the guide slide; an engaging rack is slidingly provided on the side of the guide slide relatively close to the driving gear ring; and the end of the engaging rack is movably connected to the driving cylinder through a mounting seat.

[0010] Preferably, the driven adapting running structure and the driving gear ring form a planetary structure; the driven adapting running structure includes a number of sub-mold core adapting shafts arranged in a ring shape with equal spacing in the adjusting driving cavity; the sub-mold core adapting shaft is provided with a planetary gear meshing with the driving gear ring; a center mold core adapting shaft is rotatably arranged in the adjusting driving cavity; the center mold core adapting shaft is provided with a center gear connected to the planetary gear; and the ends of the sub-mold core adapting shaft and the center mold core adapting shaft are provided with a concave flow channel forming groove for forming a double liquid cooling channel molding protrusion.

[0011] Preferably, the die-casting cavity has dual liquid-cooling channel forming protrusions, and the die-casting cavity has a mixed flow state and a separated state. In the mixed flow state of the die-casting cavity, the dual liquid-cooling channel forming protrusions are connected; in the separated state of the die-casting cavity, the dual liquid-cooling channel forming protrusions are separated and independent from each other.

[0012] Preferably, the stroke movement of the driving cylinder causes the driving gear ring to drive the sub-mold core adapter shaft and the center mold core adapter shaft to rotate, causing the concave flow channel molding groove to connect with the molding groove forming the dual liquid cooling channel molding protrusion to form a two-way diversion die-casting cavity structure.

[0013] Preferably, the return movement of the driving cylinder causes the driving gear ring to drive the sub-mold core adapter shaft and the center mold core adapter shaft to rotate, so that the concave flow channel molding groove and the molding groove forming the dual liquid cooling channel molding protrusion are staggered to form a one-way mixed flow die-casting cavity structure.

[0014] Preferably, the ends of the double liquid cooling channel forming protrusions are both provided with a "Z"-shaped return portion.

[0015] A method for forming a battery pack structural component includes the following steps: S100, installation process: installing and connecting the forming mold to the die-casting machine and connecting it to the cooling system; S200, mold closing process: the die-casting machine drives the lower mold core assembly to fit and connect with the upper mold structure; S300, adjustment processing: If the molding adjustment process of the battery pack lower box structure with a one-way liquid cooling channel is performed: the driving cylinder stroke movement causes the driving gear ring to drive the sub-mold core adapter shaft and the center mold core adapter shaft to rotate, so that the concave flow channel molding groove is connected to the molding groove forming the dual liquid cooling channel molding protrusion; If the molding adjustment process of the battery pack lower box structure with two-way relative liquid cooling channels is performed: the driving cylinder is driven to return to cause the driving gear ring to drive the sub-mold core adapter shaft and the center mold core adapter shaft to rotate, so that the inner concave flow channel molding groove and the molding groove forming the dual liquid cooling channel molding protrusion are staggered; S400, die casting process: The hot melt metal is transported into the die casting cavity through the die casting machine and is cooled and formed; S500, demoulding process: The die-casting machine separates the lower mold core assembly from the upper mold structure. Under the constraint of the folding arm, the connecting plate cannot move synchronously after being separated by a certain distance. Under the constraint of the folding arm, the spring is squeezed so that the demoulding pin protrudes from the surface of the lower mold core assembly to perform demoulding. S600, hole processing: If the battery pack lower box structure with a one-way liquid cooling channel is to be drilled: a hole is drilled in the one-way diversion channel using a hole drilling device, and holes are drilled in the two ends of the dual liquid cooling channel that are relatively located in the middle position for the pumping device; If the battery pack lower box structure with two-way opposite liquid cooling channels is to be opened, holes are opened at both ends of the two liquid cooling channels through a hole opening device.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can adjust the die-casting cavity by driving the adjustment mechanism in conjunction with the driving gear ring and the driven adaptive operating structure, thereby realizing the switching adjustment of the settings of different flow channels, thereby effectively improving the functionality of the molding equipment mold of the battery pack structural parts and enhancing the thermal management efficiency and structural adaptability of the power battery pack.

[0017] 2. The present invention is based on the separation movement of the upper mold structure and the lower mold structure, and under the constraint of the folding arm, the connecting support plate cannot move synchronously after being separated by a certain distance. Under the constraint of the folding arm, the spring is squeezed to make the demoulding ejector protrude from the surface of the lower mold core assembly to perform the demoulding work. Its movement mode only relies on the separation movement of the upper mold structure and the lower mold structure. Its structure is simple and does not require other independent driving devices to perform the demoulding work.

[0018] 3. The present invention forms a planetary structure by forming a driven adaptive operating structure and a driving gear ring, thereby realizing rotational adjustment of the sub-mold core adaptation shaft and the center mold core adaptation shaft, thereby realizing multiple adjustable nodes with a center position and equidistant positions, thereby improving the mixing effect.

[0019] 4. The present invention connects and independently separates the dual liquid-cooling channels formed on the battery pack structural parts, that is, the nodes between the dual liquid-cooling channels can be mixed with each other to evenly distribute the refrigerant to achieve a stable cooling effect; and the independent separation between the dual liquid-cooling channels can achieve rapid flow of refrigerant in the dual channels to improve the cooling effect.

[0020] 5. The present invention is based on the setting of multiple adjustable nodes on the sub-mold core adapter axis and the center mold core adapter axis to achieve the functions of mixing flow and separating opposite flows. However, due to the limitations of the planetary structure and the particularity of the node position arrangement, it is impossible to arrange the adjustment nodes near the end of the flow channel in such a rectangular battery pack lower box structure. Therefore, a good basic cooling work is required. In the basic mixing and diversion structure, it is necessary to set channels and install pumping devices at the four ends of the dual liquid cooling channels of the battery pack lower box structure to carry out independent liquid transportation and flow; however, the present invention sets a hole at the relative return part in the battery pack lower box structure after the molding, so that in the required unidirectional flow mixed flow lower box structure, it is only necessary to set channels and install pumping devices at both ends of the flow channel relatively located in the middle position to achieve a reduction in the number of pumping devices; at the same time, based on the dual liquid cooling channel molding protrusion ends are provided with a "Z"-shaped return part setting, the inclination of the middle end effectively improves the diversion flow and refrigerant output effect during the unidirectional flow mixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the split three-dimensional structure of the upper mold structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional split structure of the lower mold structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the upper mold core assembly of the present invention.

[0025] Figure 5 This is a schematic diagram of the internal structure of the driven adaptive operation structure of the present invention.

[0026] Figure 6 This is a schematic diagram of the front view structure of the dual liquid cooling channel forming protrusion of the present invention.

[0027] Figure 7 It is a schematic diagram of the internal structure of the bidirectional diversion die-casting cavity of the present invention.

[0028] Figure 8 This is a schematic diagram of the internal structure of the unidirectional mixed-flow die-casting cavity of the present invention.

[0029] Figure 9 It is a schematic diagram of the three-dimensional and two-way split liquid cooling channel structure of the lower box structure, as well as the unopened setting of the return part.

[0030] Figure 10 It is a schematic diagram of the structure of the one-way mixed flow liquid cooling channel in the lower box structure and the opening setting of the return part to illustrate the one-way diversion channel.

[0031] Description of the numbers in the figure: 1. Molding mold body; 2. Upper mold structure; 3. Positioning pin; 4. Lower mold structure; 5. Connecting base A; 6. Limiting seat; 7. Rotating seat; 8. Driving gear ring; 9. Adjusting mechanism; 10. Driven adaptive running structure; 11. Upper mold core assembly; 12. Lower mold core assembly; 13. Demolding guide seat; 14. Connecting base B; 15. Demolding assembly; 16. Folding arm; 18. Lower box structure; 19. Reflux unit; 901, guide slide; 902, driving cylinder; 903, meshing rack; 1001, sub-mold core adapter shaft; 1002, planetary gear; 1003, center mold core adapter shaft; 1004, center gear; 1401, die-cast feed sleeve; 1501, connecting support plate; 1502, demoulding ejector; 1801. One-way diversion channel. DETAILED DESCRIPTION

[0032] like Figures 1 to 8 As shown, the present invention relates to a molding device for a battery pack structural part, comprising a molding die body 1; the molding die body 1 comprises an upper mold structure 2 and a lower mold structure 4 slidably connected via a positioning pin shaft 3; the upper mold structure 2 comprises a connecting base A5; the connecting base A5 is arranged on the opposite side of the lower mold structure 4; a limiting seat 6 is provided on the side of the connecting base A5 relatively away from the lower mold structure 4 via a connecting shaft; a driving gear ring 8 is rotatably provided between the limiting seat 6 and the connecting base A5 via a rotating seat 7; and the driving gear ring 8 forms an adjustable driving cavity relative to the internal axial gap ; Moreover, an adjustment mechanism 9 is provided on the outside of the driving gear ring 8; wherein, a driven adaptive operating structure 10 is provided for adjusting the movement of the driving cavity; an upper core assembly 11 is provided on the side of the connecting base A5 relatively close to the lower mold structure 4; the lower mold structure 4 includes a lower core assembly 12; the lower core assembly 12 is arranged on the opposite side of the upper core assembly 11; wherein, the lower core assembly 12 and the upper core assembly 11 are fitted with each other, so that the gap between the lower core assembly 12 and the upper core assembly 11 and the driven adaptive operating structure 10 forms a die-casting cavity for molding the lower box structure 18 of the battery pack. The present invention can adjust the die-casting cavity by driving the adjustment mechanism 9 in conjunction with the driving gear ring 8 and the driven adaptive operating structure 10, thereby realizing the switching adjustment of the settings of different flow channels, thereby effectively improving the functionality of the molding equipment mold of the battery pack structure and improving the thermal management efficiency and structural adaptability of the power battery pack.

[0033] In an embodiment of the present invention, a demolding guide seat 13 is provided on the side of the lower mold core assembly 12 relatively away from the upper mold core assembly 11; a separation demolding active cavity extending to the outside is provided inside the demolding guide seat 13; a connecting base B14 is provided on the side of the demolding guide seat 13 relatively away from the lower mold core assembly 12, and a die-casting feed sleeve 1401 is passed through the inside of the connecting base B14; a demolding assembly 15 is provided in the separation demolding active cavity; the demolding assembly 15 is connected to the upper mold structure 2 through a folding arm 16; and the die-casting feed sleeve 1401 is movably connected to the demolding assembly 15.

[0034] In an embodiment of the present invention, the demoulding assembly 15 includes a connecting support plate 1501 movably arranged in a separating and demoulding active cavity; a plurality of demoulding ejector pins 1502 are fixedly provided on the connecting support plate 1501; the demoulding ejector pins 1502 are elastically connected to the demoulding guide seat 13 via springs; wherein, the connecting support plates 1501 are hingedly connected to the folding arm 16. The present invention is based on the separation movement of the upper mold structure 2 and the lower mold structure 4, and under the constraint of the folding arm 16, the connecting support plate 1501 cannot move synchronously after being separated by a certain distance. Under the constraint of the folding arm 16, the spring is squeezed so that the demoulding ejector pins 1502 protrude from the surface of the lower mold core assembly 12, thereby performing the demoulding work. Its movement mode only relies on the separation movement of the upper mold structure 2 and the lower mold structure 4. Its structure is simple and does not require other independent driving devices to perform the demoulding work.

[0035] In an embodiment of the present invention, the adjustment mechanism 9 includes a guide slide 901 disposed outside the drive gear ring 8; the guide slide 901 is fixedly mounted to the connection base A5 and the limit seat 6; a drive cylinder 902 is mounted on the guide slide 901; an engagement rack 903 is slidably mounted on the side of the guide slide 901 relatively close to the drive gear ring 8; and the end of the engagement rack 903 is movably connected to the drive cylinder 902 via a mounting seat. The present invention is based on the fact that the return motion of the drive cylinder 902 causes the engagement rack 903 to perform linear motion, thereby enabling the drive gear ring 8 to be rotated and adjusted as power input.

[0036] In an embodiment of the present invention, the driven adapting operating structure 10 and the driving gear ring 8 form a planetary structure; the driven adapting operating structure 10 includes a plurality of sub-mold core adapting shafts 1001 arranged in a ring shape and at equal intervals within the adjustable drive cavity; the sub-mold core adapting shafts 1001 are provided with planetary gears 1002 meshingly connected to the driving gear ring 8; a central mold core adapting shaft 1003 is rotatably arranged within the adjustable drive cavity; the central mold core adapting shaft 1003 is provided with a central gear 1004 that engages with the planetary gears 1002; and the ends of the sub-mold core adapting shafts 1001 and the central mold core adapting shaft 1003 are both provided with concave flow channel forming grooves for forming the protrusions of the dual liquid cooling channel forming. The present invention realizes the rotational adjustment of the sub-mold core adapting shafts 1001 and the central mold core adapting shaft 1003 by forming a planetary structure with the driven adapting operating structure 10 and the driving gear ring 8, thereby realizing multiple adjustable nodes with a central position and equidistant sub-positions, thereby improving the mixing effect.

[0037] In an embodiment of the present invention, the die-casting cavity has dual liquid-cooling channel molding protrusions, and the die-casting cavity has a mixed flow state and a separated state. In the mixed flow state of the die-casting cavity, the dual liquid-cooling channel molding protrusions are connected; in the separated state of the die-casting cavity, the dual liquid-cooling channel molding protrusions are separated and independent from each other. The present invention connects and independently separates the dual liquid-cooling channels formed in the battery pack structure, that is, the nodes between the dual liquid-cooling channels can be mixed to evenly distribute the refrigerant to achieve a stable cooling effect; and the independent separation between the dual liquid-cooling channels allows the dual channels to quickly flow in opposite directions to improve the cooling effect.

[0038] In an embodiment of the present invention, the stroke movement of the driving cylinder 902 causes the driving gear ring 8 to drive the sub-mold core adapter shaft 1001 and the center mold core adapter shaft 1003 to rotate, causing the concave flow channel molding groove to be connected with the molding groove forming the dual liquid cooling channel molding protrusion to form a two-way diversion die-casting cavity structure.

[0039] In an embodiment of the present invention, the return movement of the driving cylinder 902 causes the driving gear ring 8 to drive the sub-mold core adapter shaft 1001 and the center mold core adapter shaft 1003 to rotate, causing the concave flow channel molding groove and the molding groove forming the double liquid cooling channel molding protrusion to intertwine to form a one-way mixed flow die-casting cavity structure.

[0040] In an embodiment of the present invention, the ends of the double liquid cooling channel molding protrusions are provided with a "Z"-shaped return portion 19. The present invention is based on the setting of multiple adjustable nodes on the sub-mold core adapter shaft 1001 and the center mold core adapter shaft 1003 to achieve the function of mixing flow and separating opposite flows. However, due to the limitations of the planetary structure and the particularity of the node position arrangement, it is impossible to arrange the adjustment node near the end of the flow channel in such a rectangular battery pack lower box structure 18 (such as through other linkage structures and the linkage of the planetary structure, the device setting is too bloated). Therefore, a good basic cooling work is required. In the basic mixing and diversion structure, it is necessary to set channels at the four ends of the double liquid cooling channels of the battery pack lower box structure 18 and install pumping devices to carry out independent liquid transportation and flow; but in the present invention, through Figure 10 As shown, a hole is opened at the relative reflux portion 19 in the lower box structure 18 of the battery pack after the molding preparation, so that in the required unidirectional flow mixed flow lower box structure 18, it is only necessary to set holes at both ends of the flow channel relatively located in the middle position and install pumping devices to achieve a reduction in the number of pumping devices; at the same time, based on the dual liquid cooling channel molding, the raised ends are all provided with a "Z"-shaped reflux portion 19, and the inclination at the middle end effectively improves the diversion flow and the refrigerant output effect in the unidirectional flow mixed flow process.

[0041] Working principle: This embodiment provides a molding device for battery pack structural parts. The following steps are used: S100, installation process: installing and connecting the forming mold to the die-casting machine and connecting it to the cooling system; S200, mold closing process: driving the lower mold core assembly 12 and the upper mold structure 2 to fit together through the die-casting machine; S300, adjustment processing: If the molding adjustment process of the battery pack lower box structure 18 with a one-way liquid cooling channel is performed: the driving cylinder 902 is driven to cause the driving gear ring 8 to drive the sub-mold core adapter shaft 1001 and the center mold core adapter shaft 1003 to rotate, so that the inner concave flow channel molding groove is connected to the molding groove forming the dual liquid cooling channel molding protrusion; If the molding adjustment process of the battery pack lower box structure 18 with two-way opposite liquid cooling channels is performed: the driving cylinder 902 is driven to return, causing the driving gear ring 8 to drive the sub-mold core adapter shaft 1001 and the center mold core adapter shaft 1003 to rotate, so that the inner concave flow channel molding groove and the molding groove forming the dual liquid cooling channel molding protrusion are staggered; S400, die casting process: The hot melt metal is transported into the die casting cavity through the die casting machine and is cooled and formed; S500, demolding treatment: the lower mold core assembly 12 is separated from the upper mold structure 2 by the die casting machine, and after being separated by a certain distance, the connecting plate 1501 cannot follow the movement synchronously under the constraint of the folding arm 16, the spring is extruded under the constraint of the folding arm 16, so that the demolding ejector pin 1502 protrudes from the surface of the lower mold core assembly 12 to perform the demolding work; S600, hole processing: If the one-way liquid cooling flow channel battery pack lower box structure 18 is processed: the one-way shunt hole 1801 is processed by the hole processing device, and the two end portions located in the middle position in the double liquid cooling channel are processed by the hole processing device. If the two-way relative liquid cooling flow channel battery pack lower box structure 18 is processed: the two end portions in the double liquid cooling channel are processed by the hole processing device, and a total of four channels are processed.

[0042] The embodiments of the present application are disclosed, but are not limited to this, and those skilled in the art can easily understand the spirit of the present application according to the above embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, they are within the protection scope of the present application.

Claims

1. A molding device for battery pack structural parts, characterized in that: It comprises a forming mold body (1); the forming mold body (1) comprises an upper mold structure (2) and a lower mold structure (4) slidably connected via a positioning pin shaft (3); The upper mold structure (2) includes a connecting base A (5); the connecting base A (5) is arranged on the opposite side of the lower mold structure (4); a limiting seat (6) is provided on the side of the connecting base A (5) relatively away from the lower mold structure (4) through a connecting shaft; A driving gear ring (8) is rotatably provided between the limiting seat (6) and the connecting base A (5) via a rotating seat (7); Furthermore, the drive gear ring (8) forms an adjustable drive cavity relative to the internal axial gap; and an adjustment mechanism (9) is provided on the outside of the drive gear ring (8); Wherein, the regulating drive cavity is movably provided with a driven adaptive operation structure (10); An upper mold core assembly (11) is provided on a side of the connection base A (5) relatively close to the lower mold structure (4); The lower mold structure (4) includes a lower mold core assembly (12); the lower mold core assembly (12) is arranged on the opposite side of the upper mold core assembly (11); The lower mold core assembly (12) and the upper mold core assembly (11) fit together, so that a gap between the lower mold core assembly (12), the upper mold core assembly (11) and the driven adaptive operating structure (10) forms a die-casting cavity for forming the lower box structure (18) of the battery pack.

2. The battery pack structural component molding device according to claim 1, characterized in that: A demoulding guide seat (13) is provided on a side of the lower mold core assembly (12) relatively away from the upper mold core assembly (11); The demoulding guide seat (13) is provided with a separation demoulding activity cavity extending to the outside; A connecting base B (14) is provided on a side of the demoulding guide seat (13) relatively away from the lower mold core assembly (12), and a die-casting feed sleeve (1401) is provided inside the connecting base B (14); A demoulding assembly (15) is provided in the separation and demoulding active cavity; the demoulding assembly (15) is connected to the upper mold structure (2) via a folding arm (16); and the die-casting feed shaft sleeve (1401) is movably connected to the demoulding assembly (15).

3. The battery pack structural component molding device according to claim 2, characterized in that: The demoulding assembly (15) comprises a connecting support plate (1501) movably arranged in the separating and demoulding active cavity; a plurality of demoulding ejectors (1502) are fixedly provided on the connecting support plate (1501); the demoulding ejectors (1502) are elastically connected to the demoulding guide seat (13) via a spring; Wherein, the connecting support plates (1501) are all hingedly connected to the folding arms (16).

4. The battery pack structural component molding device according to claim 3, characterized in that: The adjusting mechanism (9) includes a guide slide (901) arranged outside the driving gear ring (8); the guide slide (901) is fixedly mounted on the connecting base A (5) and the limiting seat (6); A driving oil cylinder (902) is mounted on the guide slide (901); an engaging rack (903) is slidably mounted on a side of the guide slide (901) relatively close to the driving gear ring (8); and an end of the engaging rack (903) is movably connected to the driving oil cylinder (902) via a mounting seat.

5. The battery pack structural component molding device according to claim 4, characterized in that: The driven adapting operation structure (10) and the driving gear ring (8) form a planetary structure; the driven adapting operation structure (10) includes a plurality of sub-mold core adapting shafts (1001) arranged in a ring shape and at equal intervals in the regulating drive cavity; the sub-mold core adapting shafts (1001) are provided with planetary gears (1002) meshingly connected with the driving gear ring (8); A central mold core adapting shaft (1003) is rotatably provided in the regulating drive cavity; a central gear (1004) connected to the planetary gear (1002) is provided on the central mold core adapting shaft (1003); Furthermore, the ends of the sub-mold core adapting shaft (1001) and the center mold core adapting shaft (1003) are both provided with concave flow channel forming grooves for forming convex shapes of dual liquid cooling channels.

6. The battery pack structural component molding device according to claim 1, characterized in that: The ends of the double liquid cooling channel forming protrusions are both provided with a "Z"-shaped reflux portion (19).

7. The battery pack structural component molding device according to claim 5, characterized in that: The die casting cavity has a double liquid cooling channel forming protrusion, Moreover, the die-casting cavity has a mixed flow state and a separated state. In the mixed flow state of the die-casting cavity, the dual liquid cooling channel forming protrusions are connected; in the separated state of the die-casting cavity, the dual liquid cooling channel forming protrusions are separated and independent from each other.

8. The battery pack structural component molding device according to claim 7, characterized in that: The stroke movement of the driving oil cylinder (902) causes the driving gear ring (8) to drive the sub-mold core adapter shaft (1001) and the center mold core adapter shaft (1003) to rotate, causing the inner concave flow channel forming groove to communicate with the forming groove forming the dual liquid cooling channel forming protrusion to form a two-way diversion die-casting cavity structure.

9. The battery pack structural component molding device according to claim 7, characterized in that: The return motion of the driving oil cylinder (902) causes the driving gear ring (8) to drive the sub-mold core adapter shaft (1001) and the center mold core adapter shaft (1003) to rotate, causing the inner concave flow channel forming groove and the forming groove forming the double liquid cooling channel forming protrusion to interlace to form a one-way mixed flow die-casting cavity structure.

10. A working method of a battery pack structural component molding device, which is applicable to a battery pack structural component molding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S100, installation process: installing and connecting the forming mold to the die-casting machine and connecting it to the cooling system; S200, mold closing process: driving the lower mold core assembly (12) and the upper mold structure (2) to be fitted and connected by the die-casting machine; S300, adjustment processing: If a molding adjustment process is performed on the lower box structural member (18) of the battery pack with a one-way liquid cooling channel: the driving cylinder (902) is driven to move the stroke so that the driving gear ring (8) drives the sub-mold core adapter shaft (1001) and the center mold core adapter shaft (1003) to rotate, so that the inner concave flow channel molding groove is connected to the molding groove forming the double liquid cooling channel molding protrusion; If a molding adjustment process is performed on the lower box structural member (18) of the battery pack with two-way relative liquid cooling channels: the driving cylinder (902) is driven to return so as to cause the driving gear ring (8) to drive the sub-mold core adapter shaft (1001) and the center mold core adapter shaft (1003) to rotate, so that the inner concave flow channel molding groove and the molding groove forming the dual liquid cooling channel molding protrusion are staggered; S400, die casting process: The hot melt metal is transported into the die casting cavity through the die casting machine and is cooled and formed; S500, demoulding process: the die-casting machine is used to separate the lower mold core assembly (12) from the upper mold structure (2), and under the constraint of the folding arm (16), the connecting support plate (1501) is unable to move synchronously after being separated by a certain distance, and under the constraint of the folding arm (16), the spring is squeezed so that the demoulding ejector pin (1502) protrudes from the surface of the lower mold core assembly (12) to perform the demoulding work; S600, hole processing: If the battery pack lower box structure (18) of the one-way liquid cooling channel is to be opened: the one-way diversion channel (1801) is opened by the opening device, and the two ends of the dual liquid cooling channel located relatively in the middle position are opened for the pumping device; If a hole opening process is performed on the lower box structural member (18) of the battery pack with two-way relative liquid cooling channels: holes are opened at the ends of the two liquid cooling channels by using a hole opening device.

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