A car lithium battery shaping device

Abstract

This invention discloses an automotive lithium battery shaping device, relating to the field of automotive lithium battery processing technology. It includes a worktable and a heat exchange assembly. A pressure-applying assembly is located on the top of the worktable, and an upper mold is mounted on the bottom surface of the middle of the pressure-applying assembly. A lower mold is fixed to the center of the upper surface of the worktable. The heat exchange assembly is disposed inside the upper and lower molds and includes a first heat-conducting pipe. This invention uses a flexible diaphragm within a dual-cavity heat-conducting membrane to separate high-temperature oil from cooling water channels. During the heating phase, the high-temperature oil compresses the diaphragm to adhere to the inner wall of the cooling channels, achieving full coverage of the hot channels. During the cooling phase, the reverse operation completely replaces the hot oil with cold water. This design ensures complete overlap between the heating and cooling areas, eliminating temperature fluctuations caused by residual media in traditional solutions, improving heat exchange efficiency, and avoiding media mixing and contamination. It also effectively improves the mold's temperature control response speed and increases the yield rate of lithium battery shaping.

Description

Technical Field

[0001] This invention relates to the field of automotive lithium battery processing technology, specifically to an automotive lithium battery shaping device. Background Technology

[0002] Automotive lithium batteries are lithium-ion batteries used in electric or hybrid vehicles. They achieve charging and discharging through the migration of lithium ions between the positive and negative electrodes. They are mainly composed of positive electrode materials, negative electrode materials, separators, electrolytes, and shells. They have the characteristics of high energy density, long cycle life, and lightweight. In the lithium battery production process, after the cells undergo winding or stacking processes, the internal materials may undergo slight deformation due to process errors or material expansion. Therefore, they need to be placed in a mold for hot pressing and shaping to eliminate deviations in cell thickness and shape.

[0003] Currently, in the process of shaping lithium battery cells, the wound or stacked cells are placed on a template, and then the pressure of the booster cylinder and the temperature of the template are set. After that, the upper and lower templates are subjected to certain pressure and temperature to shape the cells, so as to achieve a uniform cell thickness, improve the cell loading qualification rate, and ensure the consistency of the thickness of the finished cells. However, after hot pressing, cooling water needs to be introduced into the cooling pipes inside the template to cool the cells. However, since some heating rods inside the mold also occupy a certain space, the uneven distribution of cooling pipes affects the overall cooling uniformity of the product. Summary of the Invention

[0004] The purpose of this invention is to provide an automotive lithium battery shaping device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automotive lithium battery shaping device, comprising a worktable and a heat exchange assembly, wherein a pressure application assembly is provided on the top of the worktable, and an upper mold is disposed on the bottom surface of the middle part of the pressure application assembly, and a lower mold is fixed in the center of the upper surface of the worktable, the heat exchange assembly is disposed inside the upper mold and the lower mold, the heat exchange assembly includes a first heat-conducting pipe, the lower mold is disposed inside the first heat-conducting pipe, one end of the first heat-conducting pipe is connected to a first manifold, and the end of the first manifold is provided with a liquid inlet pipe, the other end of the first heat-conducting pipe is fixed to a first branch pipe, and a second manifold is disposed above the first branch pipe, one end of the second manifold is connected to a second heat-conducting pipe, and the second heat-conducting pipe is fixedly connected to the upper mold, and both the second heat-conducting pipe and the first heat-conducting pipe are provided with a double-cavity heat-conducting film inside, the other end of the second heat-conducting pipe is connected to a second branch pipe, and a drain pipe is disposed below the second branch pipe, and the drain pipe is fixedly connected to the worktable.

[0006] Furthermore, the pressure application component includes a frame, with the frame mounted on the top of the workbench, and a hydraulic cylinder fixed at the center of the top of the frame. A lifting plate is connected to the bottom of the hydraulic cylinder, and the lifting plate is slidably connected to the frame. A pressure sensor is provided at the bottom of the lifting plate, and a mounting plate is fixed to the bottom of the pressure sensor.

[0007] Furthermore, the top of both the first diversion pipe and the drain pipe is provided with a connecting component, and the connecting component includes a rotating shaft. The upper outer side of both the first diversion pipe and the drain pipe is rotatably connected to the rotating shaft, and the lower outer side of the rotating shaft is provided with a torsion spring. The bottom of the torsion spring is fixed with a sliding rod, and the sliding rod is fixedly connected to the rotating shaft. The top of the rotating shaft is provided with a cover plate, and the bottom two ends of the mounting plate are symmetrically provided with drive plates.

[0008] Furthermore, the bottom of the drive plate is inclined, and the drive plate corresponds one-to-one with the slide rod.

[0009] Furthermore, both the lower ends of the second manifold and the second branch pipe are provided with anti-leakage components, and the two anti-leakage components face opposite directions. The anti-leakage components include O-rings. O-rings are fitted on the outer sides of the lower ends of the second manifold and the second branch pipe, and fixing rings are fixed inside the second manifold and the second branch pipe.

[0010] Furthermore, a sealing plug is provided on one side of the fixing ring, and a connecting rod is placed in the middle of the sealing plug. The end of the connecting rod is connected to a limiting plate, and a return spring is provided on one side of the limiting plate.

[0011] Furthermore, one end of the drain pipe is connected to an adjustment assembly, which includes a bracket. The bracket is fixed to one side of the workbench, and an electric push rod is mounted on the top of the bracket. A toothed plate is connected to the bottom of the electric push rod, and gears mesh on both sides of the toothed plate.

[0012] Furthermore, a screw sleeve is fixed inside the gear, and a fixed box is rotatably connected to the outside of the screw sleeve. The fixed box is fixedly connected to the workbench. A screw rod is threaded inside the screw sleeve, and a hole plate is fixed to one side of the screw rod. The hole plate is slidably connected to the fixed box.

[0013] Furthermore, a guide rod is slidably connected to the middle of the perforated plate, and a plug is fixed to one end of the guide rod, with a compression spring provided on one side of the plug.

[0014] Furthermore, a stripping assembly is connected to one side of the lifting plate, and the stripping assembly includes a bracket. The bracket is fixed to one side of the lifting plate and is L-shaped. An ejector plate is provided at the lower end of the bracket and is slidably connected to the lower mold. A limit rod is slidably connected inside the ejector plate and is fixedly connected to the worktable.

[0015] This invention provides a vehicle lithium battery shaping device, which has the following beneficial effects:

[0016] 1. This invention separates the high-temperature oil and cooling water channels through a flexible diaphragm within a dual-cavity heat-conducting membrane. During the heating stage, the high-temperature oil squeezes the diaphragm to adhere to the inner wall of the cooling channel, achieving full coverage of the hot flow channel. During the cooling stage, the reverse operation is performed to completely replace the hot oil with cold water. This design ensures that the heating and cooling areas completely overlap, eliminating temperature fluctuations caused by residual media in traditional solutions, improving heat exchange efficiency, and avoiding media mixing and contamination. This effectively enhances the mold temperature control response speed and improves the yield rate of lithium battery shaping.

[0017] 2. When the hydraulic cylinder of this invention drives the lifting plate, the bottom inclined drive plate and the slide rod trigger the rotation of the rotating shaft, automatically releasing the cover plate from the obstruction of the diversion pipe and the drain pipe, realizing the rapid connection of the manifold and the diversion pipe. During the flow of the medium, the sealing plug will automatically open the flow channel under the medium pressure, and the O-ring ensures the sealing. When the upper and lower molds are separated, the reset spring will push the limit plate to reset, the sealing plug will close the flow channel and link the cover plate to return to its original position. The whole process does not require manual intervention and is more convenient.

[0018] 3. The toothed plate and the double gear meshing drive screw control the position of the orifice plate. The opening and closing state of the plug and the drain pipe is controlled by the compression spring. Therefore, when hot oil is introduced, the oil pressure is increased by the spring pressure. The drain pipe on the other side is opened to realize the rapid drainage of cooling water. The reverse operation in the cooling stage makes the cold water efficiently replace the hot oil, which greatly shortens the medium switching time. In addition, this application also cooperates with the ejector plate to automatically eject the product with the lifting action, realize the full automation of the shaping, cooling and demolding process, and improve the overall production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an automotive lithium battery shaping device according to the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the unloading component of an automotive lithium battery shaping device according to the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the heat exchange component of an automotive lithium battery shaping device according to the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the first heat pipe of an automotive lithium battery shaping device according to the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the second heat pipe of an automotive lithium battery shaping device according to the present invention;

[0024] Figure 6This is a three-dimensional structural diagram of the connecting component of an automotive lithium battery shaping device according to the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the anti-leakage component of an automotive lithium battery shaping device according to the present invention;

[0026] Figure 8 This is a three-dimensional structural diagram of the adjustment component of an automotive lithium battery shaping device according to the present invention.

[0027] In the diagram: 1. Workbench; 2. Pressure application assembly; 201. Frame; 202. Hydraulic cylinder; 203. Lifting plate; 204. Pressure sensor; 205. Mounting plate; 3. Upper mold; 4. Lower mold; 5. Heat exchange assembly; 501. First heat conduction pipe; 502. First manifold; 503. Liquid inlet pipe; 504. First branch pipe; 505. Second manifold; 506. Second heat conduction pipe; 507. Dual-cavity heat conduction film; 508. Second branch pipe; 509. Drain pipe; 6. Connecting assembly; 601. Rotating shaft; 602. Torsion spring; 603. Slide rod; 6 04. Cover plate; 605. Drive plate; 7. Leak-proof assembly; 701. O-ring; 702. Retaining ring; 703. Sealing plug; 704. Connecting rod; 705. Limiting plate; 706. Return spring; 8. Adjusting assembly; 801. Bracket; 802. Electric push rod; 803. Toothed plate; 804. Gear; 805. Screw sleeve; 806. Fixing box; 807. Screw; 808. Hole plate; 809. Guide rod; 810. Plug; 811. Compression spring; 9. Unloading assembly; 901. Bracket; 902. Ejector plate; 903. Limiting rod. Detailed Implementation

[0028] Please see Figures 1 to 5This invention provides a technical solution: a lithium battery shaping device for automobiles, comprising a workbench 1 and a heat exchange assembly 5. A pressure application assembly 2 is disposed on the top of the workbench 1, and an upper mold 3 is mounted on the bottom surface of the middle part of the pressure application assembly 2. A lower mold 4 is fixed to the center of the upper surface of the workbench 1. The heat exchange assembly 5 is disposed inside the upper mold 3 and the lower mold 4. The heat exchange assembly 5 includes a first heat-conducting pipe 501. The lower mold 4 contains the first heat-conducting pipe 501, one end of which is connected to a first manifold 502. The end of the first manifold 502 is provided with an inlet pipe 503. The other end of the first heat-conducting pipe 501 is fixed with a first branch pipe 504, and a second manifold 505 is disposed above the first branch pipe 504. One end of the second manifold 505 is connected to a second... The heat pipe 506 is fixedly connected to the upper mold 3, and the interior of the second heat pipe 506 and the first heat pipe 501 are both provided with a double-cavity heat-conducting film 507. The other end of the second heat pipe 506 is connected to a second diversion pipe 508, and a drain pipe 509 is provided below the second diversion pipe 508. The drain pipe 509 is fixedly connected to the workbench 1. The pressure application component 2 includes a frame 201. The frame 201 is mounted on the top of the workbench 1, and a hydraulic cylinder 202 is fixed in the center of the top of the frame 201. A lifting plate 203 is connected to the bottom of the hydraulic cylinder 202, and the lifting plate 203 is slidably connected to the frame 201. A pressure sensor 204 is provided at the bottom of the lifting plate 203, and a mounting plate 205 is fixed at the bottom of the pressure sensor 204.

[0029] The specific operation is as follows: The flexible thermally conductive diaphragm inside the dual-cavity thermally conductive film 507 divides the interior of the first heat-conducting pipe 501 and the second heat-conducting pipe 506 into two flow channels. Therefore, during the cell shaping process, when a higher temperature is required, an external pump delivers oil at a specified temperature to one of the inlet pipes 503. Since the first manifold 502 has two flow channels, and its outlet is connected to the two flow channels inside the dual-cavity thermally conductive film 507, the dual-cavity thermally conductive film 507 deforms under the pressure of the oil during use, causing the central diaphragm to adhere to the inner wall of the other flow channel. This ensures that only high-temperature oil remains inside the first heat-conducting pipe 501. Similarly, the two flow channels inside the first branch pipe 504, the second manifold 505, and the second branch pipe 508 are also connected to the two flow channels inside the dual-cavity thermally conductive film 507, allowing the high-temperature oil to flow into the second heat-conducting pipe 506. Simultaneously, the first... Heat pipe 501 is distributed in a bent shape inside and outside the lower end of the lower mold 4, and the second heat pipe 506 is distributed in a bent shape inside the upper mold 3. This ensures that the product is heated evenly during hot pressing, enhancing the shaping effect. When the product needs to be cooled after hot pressing, the hot oil inside the double-cavity heat-conducting film 507 is first discharged, and then cold water is introduced into the other flow channel of the double-cavity heat-conducting film 507 through another inlet pipe 503 via an external pump. Similarly, the diaphragm inside the double-cavity heat-conducting film 507 will deform and fit with the other side, so that only cold water is stored inside the first heat pipe 501 and the second heat pipe 506. Therefore, during temperature control, the heating and cooling parts are in the same position and are evenly distributed inside the mold, which is beneficial to improving the heat exchange effect and will not cause the heat exchange media to interfere with each other. In addition, by discharging another heat exchange medium during the heat exchange process, the heat transfer between the heat exchange media is reduced, thus reducing the loss of heat exchange efficiency.

[0030] Please see Figure 6 and Figure 7Both the first diversion pipe 504 and the drain pipe 509 are equipped with connecting components 6 at their tops. Each connecting component 6 includes a rotating shaft 601. The upper outer sides of both the first diversion pipe 504 and the drain pipe 509 are rotatably connected to the rotating shaft 601. A torsion spring 602 is provided on the lower outer side of the rotating shaft 601. A sliding rod 603 is fixed to the bottom of the torsion spring 602 and is fixedly connected to the rotating shaft 601. A cover plate 604 is placed on the top of the rotating shaft 601. Drive plates 605 are symmetrically arranged at both ends of the bottom of the mounting plate 205. The bottom of the drive plates 605 is inclined, and each drive plate 605 corresponds to one sliding rod 603. Both the lower ends of the second manifold 505 and the second branch pipe 508 are provided with anti-leakage components 7, and the two anti-leakage components 7 face opposite directions. The anti-leakage component 7 includes an O-ring 701. The lower ends of the second manifold 505 and the second branch pipe 508 are fitted with O-rings 701. The interior of the second manifold 505 and the second branch pipe 508 is fixed with a fixing ring 702. A sealing plug 703 is provided on one side of the fixing ring 702. A connecting rod 704 is arranged in the middle of the sealing plug 703. The end of the connecting rod 704 is connected to a limit plate 705. A return spring 706 is provided on one side of the limit plate 705.

[0031] The specific operation is as follows: the hydraulic cylinder 202 on the frame 201 drives the lifting plate 203 to move down, so that the upper mold 3 and the lower mold 4 dock. At the same time, it also drives the drive plate 605 to contact the slide rod 603. Since the bottom of the drive plate 605 is inclined, the slide rod 603 will rotate the shaft 601 under its limit, which will automatically move the cover plate 604 away from the top of the first diversion pipe 504 and the drain pipe 509. The second manifold 505 can then be inserted into the inside of the first diversion pipe 504 and the drain pipe 509 to automatically complete the docking operation. Subsequently, when the internal heat exchange medium is transported, the pressure of the heat exchange medium will push the sealing plug 703, thereby causing the first heat conduction pipe 501 and the second heat conduction pipe to dock. The internal flow of 506 is improved by the O-ring 701, which enhances the sealing performance during the connection process. After shaping, when the upper mold 3 and lower mold 4 are separated, the return spring 706 pushes the limiting plate 705 under the limit of the fixing ring 702. The connecting rod 704 pulls the sealing plug 703, making it fit tightly against the fixing ring 702. This allows a certain pressure to seal the lower ends of the second manifold 505 and the second branch pipe 508. At the same time, the drive plate 605 separates from the slide rod 603, and the torsion spring 602 drives the rotating shaft 601 to reset, so that the cover plate 604 can cover the top of the first branch pipe 504 and the drain pipe 509 again. This eliminates the need for additional manual operation and makes it more convenient.

[0032] Please see Figure 1 , Figure 2 and Figure 8One end of the drain pipe 509 is connected to an adjusting assembly 8. The adjusting assembly 8 includes a bracket 801. The bracket 801 is fixed to one side of the workbench 1, and an electric push rod 802 is mounted on the top of the bracket 801. A toothed plate 803 is connected to the bottom of the electric push rod 802, and gears 804 mesh on both sides of the toothed plate 803. A threaded sleeve 805 is fixed inside the gear 804, and a fixed box 806 is rotatably connected to the outside of the threaded sleeve 805. The fixed box 806 is fixedly connected to the workbench 1. A screw 807 is threaded inside the threaded sleeve 805, and a perforated plate 808 is fixed to one side of the screw 807. 8 is slidably connected to the fixed box 806. A guide rod 809 is slidably connected to the middle of the perforated plate 808. A plug 810 is fixed to one end of the guide rod 809. A compression spring 811 is provided on one side of the plug 810. A stripping assembly 9 is connected to one side of the lifting plate 203. The stripping assembly 9 includes a bracket 901. A bracket 901 is fixed to one side of the lifting plate 203. The bracket 901 is L-shaped. An ejector plate 902 is provided at the lower end of the bracket 901. The ejector plate 902 is slidably connected to the lower mold 4. A limit rod 903 is slidably connected inside the ejector plate 902. The limit rod 903 is fixedly connected to the worktable 1.

[0033] The specific operation is as follows: When the middle part of the toothed plate 803 is located between the two gears 804, the perforated plates 808 inside the two fixed boxes 806 are aligned. When one end of the toothed plate 803 is moved between the two gears 804 by the electric push rod 802, the two gears 804 will rotate in different directions. Thus, through the threaded sleeve 805 and the screw 807, one perforated plate 808 is brought closer to the plug 810, and the compression spring 811 provides a larger elastic force. The other perforated plate 808 is brought closer to the threaded sleeve 805, and the guide rod 809 pulls the plug 810, separating it from the drain pipe 509. Thus, when hot oil is introduced into one of the drain pipes 509, the oil pressure increases due to the larger elasticity of the compression spring 811. The end of the other drain pipe 509 is not blocked, so the internal cooling... Water can flow out directly, so the oil inside the dual-cavity heat-conducting film 507 can squeeze out the cooling water and quickly discharge it from the dual-cavity heat-conducting film 507, reducing interference. During cooling, simply moving the toothed plate 803 back via the electric push rod 802 can separate the plug 810 in the hot oil from the drain pipe 509, while the plug 810 in the cold water is in close contact with the drain pipe 509. At this time, cooling water is delivered through the external pump, which can also quickly squeeze out the hot oil inside the dual-cavity heat-conducting film 507, allowing the cooling water to fill the interior of the dual-cavity heat-conducting film 507, thereby improving the efficiency of heat exchange medium switching. Subsequently, when the lifting plate 203 drives the upper mold 3 and the lower mold 4 to separate, the ejector plate 902 will also slide upward along the limit rod 903 via the bracket 901, thereby automatically ejecting the product inside the lower mold 4 for easy unloading.

[0034] In summary, this automotive lithium battery shaping device, when in use, first places the battery cell inside the lower mold 4. Then, the hydraulic cylinder 202 on the frame 201 is activated, causing the lifting plate 203 to move downwards, allowing the upper mold 3 to dock with the lower mold 4. Simultaneously, the drive plate 605 contacts the sliding rod 603, which, under its limit, causes the rotating shaft 601 to rotate, automatically removing the cover plate 604 from the top of the first shunt pipe 504 and the drain pipe 509. The second manifold 505 can then be inserted into the first shunt pipe 504 and the drain pipe 509 to automatically complete the docking operation. Next, the electric push rod 802 is activated, moving one end of the toothed plate 803 between the two gears 804. The two gears 804 rotate in different directions, thereby causing a perforated plate 808 to approach the plug 8 via the screw sleeve 805 and the screw 807. 10. The compression spring 811 can provide a large elastic force, while another orifice plate 808 will approach the screw sleeve 805 and pull the plug head 810 through the guide rod 809 to separate it from the drain pipe 509. Then, when it is necessary to increase the temperature, the oil of the specified temperature is delivered to one of the inlet pipes 503 through the external pump body. Since there are two flow channels inside the first manifold 502, and one end of the outlet is connected to the two flow channels inside the double cavity heat-conducting film 507 respectively, and the two flow channels inside the first branch pipe 504, the second manifold 505 and the second branch pipe 508 are also connected to the two flow channels inside the double cavity heat-conducting film 507 respectively, just like the first manifold 502. Moreover, the pressure of the heat exchange medium will push the sealing plug 703, so that the first heat-conducting pipe 501 and the second heat-conducting pipe 506 can flow together.

[0035] Furthermore, the O-ring 701 improves the sealing performance during the connection process, allowing the high-temperature oil to flow into the second heat-conducting pipe 506 and then into the drain pipe 509. At this point, the high-elasticity compression spring 811 increases the oil pressure. Since the end of the other drain pipe 509 is unobstructed, the internal cooling water can flow out directly. The dual-cavity heat-conducting film 507 deforms under the pressure of the oil, causing the central diaphragm to adhere to the inner wall of the other flow channel, quickly squeezing the cooling water out of the dual-cavity heat-conducting film 507 and reducing interference. Simultaneously, the first heat-conducting pipe 501 is distributed in a bent shape at the lower end of the lower mold 4, both inside and outside, and the second heat-conducting pipe 506 is distributed in a bent shape at the upper mold 3. Internally, this ensures uniform heating of the product during hot pressing. Then, during the pressurization process, the pressure sensor 204 monitors the pressure. Subsequently, when the product needs to be cooled, the electric push rod 802 simply moves the toothed plate 803 back, which separates the plug 810 in the hot oil from the drain pipe 509. The plug 810 in the cold water is tightly attached to the drain pipe 509. Then, the external pump body introduces cold water from another inlet pipe 503 into another channel of the double-cavity heat-conducting membrane 507. The diaphragm inside the double-cavity heat-conducting membrane 507 will deform and fit with the other side, so that only cold water is stored inside the first heat-conducting pipe 501 and the second heat-conducting pipe 506, which quickly cools the product.

[0036] Finally, after shaping, the hydraulic cylinder 202 drives the lifting plate 203 to move upward, so that the upper mold 3 and the lower mold 4 are separated. The return spring 706 will push the limiting plate 705 under the limit of the fixed ring 702. The connecting rod 704 pulls the sealing plug 703 so that it is tightly attached to the fixed ring 702. A certain pressure can be used to seal the lower end of the second manifold 505 and the second branch pipe 508. At the same time, the drive plate 605 separates from the slide rod 603, and the torsion spring 602 will drive the rotating shaft 601 to reset, so that the cover plate 604 will cover the top of the first branch pipe 504 and the drain pipe 509 again. Meanwhile, the lifting plate 203 will also drive the ejector plate 902 to slide upward along the limiting rod 903 through the bracket 901, so that the product inside the lower mold 4 can be automatically ejected for easy unloading.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A device for shaping automotive lithium batteries, characterized in that, The device includes a worktable and a heat exchange assembly. A pressure-applying assembly is mounted on the top of the worktable, and an upper mold is placed on the bottom surface of the pressure-applying assembly. A lower mold is fixed to the center of the upper surface of the worktable. The heat exchange assembly is disposed inside the upper and lower molds. The heat exchange assembly includes a first heat-conducting pipe. The lower mold contains the first heat-conducting pipe, one end of which is connected to a first manifold. An inlet pipe is located at the end of the first manifold. The other end of the first heat-conducting pipe is fixed to a first branch pipe, and a second manifold is positioned above the first branch pipe. The second manifold... One end is connected to a second heat pipe, which is fixedly connected to the upper mold. Both the second and first heat pipes have a double-cavity heat-conducting membrane inside. The other end of the second heat pipe is connected to a second branch pipe, and a drain pipe is provided below the second branch pipe and fixedly connected to the worktable. The flexible diaphragm inside the double-cavity heat-conducting membrane separates the high-temperature oil and cooling water channels. During the heating stage, the high-temperature oil squeezes the diaphragm to make it adhere to the inner wall of the cooling channel, achieving full coverage of the hot channel. During the cooling stage, the reverse operation is performed to completely replace the hot oil with cold water, so that the heating and cooling areas completely overlap.

2. The automotive lithium battery shaping device according to claim 1, characterized in that, The pressure application assembly includes a frame, with the frame mounted on the top of the workbench. A hydraulic cylinder is fixed at the center of the top of the frame, and a lifting plate is connected to the bottom of the hydraulic cylinder. The lifting plate is slidably connected to the frame. A pressure sensor is installed at the bottom of the lifting plate, and a mounting plate is fixed to the bottom of the pressure sensor.

3. The automotive lithium battery shaping device according to claim 2, characterized in that, Both the first diversion pipe and the drain pipe are provided with a connecting assembly at their top, and the connecting assembly includes a rotating shaft. The upper outer side of the first diversion pipe and the drain pipe are rotatably connected to the rotating shaft, and the lower outer side of the rotating shaft is provided with a torsion spring. The bottom of the torsion spring is fixed with a sliding rod, and the sliding rod is fixedly connected to the rotating shaft. The top of the rotating shaft is provided with a cover plate, and the bottom two ends of the mounting plate are symmetrically provided with drive plates.

4. The automotive lithium battery shaping device according to claim 3, characterized in that, The bottom of the drive plate is inclined, and the drive plate corresponds to the slide rod one by one.

5. The automotive lithium battery shaping device according to claim 4, characterized in that, Both the lower ends of the second manifold and the second branch pipe are equipped with anti-leakage components, and the anti-leakage components on both sides face opposite directions. The anti-leakage components include O-rings. O-rings are fitted on the outer sides of the lower ends of the second manifold and the second branch pipe, and fixing rings are fixed inside the second manifold and the second branch pipe.

6. The automotive lithium battery shaping device according to claim 5, characterized in that, A sealing plug is provided on one side of the fixing ring, and a connecting rod is placed in the middle of the sealing plug. The end of the connecting rod is connected to a limiting plate, and a return spring is provided on one side of the limiting plate.

7. The automotive lithium battery shaping device according to claim 6, characterized in that, One end of the drain pipe is connected to an adjustment assembly, which includes a bracket. A bracket is fixed to one side of the workbench, and an electric push rod is mounted on the top of the bracket. A toothed plate is connected to the bottom of the electric push rod, and gears mesh on both sides of the toothed plate.

8. The automotive lithium battery shaping device according to claim 7, characterized in that, The gear has a screw sleeve fixed inside, and a fixed box is rotatably connected to the outside of the screw sleeve. The fixed box is fixedly connected to the workbench. The screw sleeve has a screw rod threaded inside, and a hole plate is fixed to one side of the screw rod. The hole plate is slidably connected to the fixed box.

9. The automotive lithium battery shaping device according to claim 8, characterized in that, A guide rod is slidably connected to the middle of the perforated plate, and a plug is fixed to one end of the guide rod, with a compression spring provided on one side of the plug.

10. The automotive lithium battery shaping device according to claim 9, characterized in that, A stripping assembly is connected to one side of the lifting plate, and the stripping assembly includes a bracket. The bracket is fixed to one side of the lifting plate and is L-shaped. An ejector plate is provided at the lower end of the bracket and is slidably connected to the lower mold. A limit rod is slidably connected inside the ejector plate and is fixedly connected to the worktable.

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