High-integration thermal management method for heating film aluminum base and liquid cooling plate

Abstract

The invention relates to the technical field of power batteries, and discloses a high-integration thermal management method for a heating film aluminum base and a liquid cooling plate, which comprises the following steps: selecting an aluminum-based flexible and high-thermal-conductivity material as a substrate of a heating film, and preparing a conductive heating material which comprises a carbon nanotube or a metal etching circuit; and a proper insulating material is selected for packaging the heating wire. The invention has the following advantages and effects: the liquid cooling tube plate and the heating film with the aluminum-based heating function are integrated together, so that the occupied space is reduced, the liquid cooling plate with a complicated special-shaped mechanism is convenient to process and integrate, the high integration level of the battery system is improved, and by reasonably designing the structure of the aluminum-based heating film and the distribution of the heat-conducting structural adhesive, the reliability of the battery system is improved. Uniform heating of the bottom of the power battery is achieved, the stability of battery performance is improved, the liquid cooling tube plate can timely dissipate heat generated by the battery, it is guaranteed that the battery works within the safe temperature range, and the reliability and durability of the aluminum-based heating film and the liquid cooling system are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of power batteries, and in particular to a highly integrated thermal management method for a heating film aluminum substrate and a liquid cooling plate. Background Art

[0002] New energy vehicles do not use fuel power units, nor do they require diesel or gasoline. Instead, they use clean energy such as electricity and solar energy, which can significantly reduce emissions of carbon dioxide and other pollutants and are environmentally friendly.

[0003] With the rapid development of new energy vehicles, the performance and safety of power batteries have received more and more attention. In low temperature environments, the performance of power batteries will significantly decrease, affecting the vehicle's range and performance.

[0004] In order to solve this problem, it is usually necessary to heat the power battery. Traditional heating methods have problems such as uneven heating, low efficiency, and large space occupation. At the same time, liquid cooling technology has significant advantages in power battery heat dissipation, but how to efficiently, safely and conveniently integrate liquid cooling (direct cooling) with heating functions has always been a technical problem that needs to be solved urgently.

[0005] At the same time, in the traditional liquid cooling plate used for battery heating, the contact heat exchange area between the cooling pipe and the plate body is often in a fixed state, resulting in the temperature of the rest of the plate body being higher than the cooling area except for this heat exchange area. How to evenly cool the plate body to improve the heat exchange efficiency of the cooling pipe also needs to be optimized. Summary of the invention

[0006] The purpose of the present invention is to provide a highly integrated thermal management method for a heating film aluminum base and a liquid cooling plate to solve the problems of uneven heating, empty burning, low efficiency, large space occupation, low safety and convenience integration of liquid cooling and heating functions, and poor heat exchange efficiency in the prior art.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: A highly integrated thermal management method of a heating film aluminum substrate and a liquid cooling plate, comprising the following steps:

[0008] S1. Selecting an aluminum-based flexible and highly thermally conductive material as the substrate of the heating film;

[0009] S2, preparing a conductive heating material, wherein the conductive heating material includes carbon nanotubes or metal etching circuits;

[0010] S3. Select appropriate insulating material for encapsulating the heating wire;

[0011] S4. Prepare liquid cooling tube sheet and coolant;

[0012] S5. Evenly distribute the conductive heating material on the base insulating material, and the distribution process adopts etching or die-cutting process;

[0013] S6, encapsulating the heating wire of the heating film with an insulating material, and pressing and integrating it with the aluminum substrate;

[0014] S7. Fix the liquid cooling tube plate and the aluminum-based heating film in close contact.

[0015] The present invention is further configured as follows: the aluminum-based flexible and highly thermally conductive material includes a 1-series or 3-series alloy aluminum plate, a graphite film or a metal foil.

[0016] The present invention is further configured as follows: the management method further comprises the following steps:

[0017] S8. Conduct electrical performance tests on the manufactured aluminum-based heating film, including resistance, power and insulation withstand voltage test parameters.

[0018] S9. Conduct liquid cooling performance test and detect the flow rate and temperature indicators of the coolant.

[0019] S10. Simulate the actual use environment and test the collaborative working performance of the aluminum-based heating film and the liquid-cooling tube plate.

[0020] The present invention is further configured as follows: the liquid cooling tube plate includes a liquid cooling panel, a support plate, a heat collecting bar, a liquid cooling component, a secondary heat exchanger and a driving compartment; the upper surface of the liquid cooling panel is used to be fixed to the aluminum-based heating film; the support plate is arranged at intervals below the liquid cooling panel; the heat collecting bar is fixed to the lower surface of the liquid cooling panel, and the heat collecting bar is kept parallel to the length direction of the liquid cooling panel; the liquid cooling component is slidably arranged on the heat collecting bar; the secondary heat exchanger is slidably matched with the bottom surface of the liquid cooling component; the driving compartment is fixed to the upper surface of the support plate; a driving component for driving the displacement of the liquid cooling component is arranged in the driving compartment.

[0021] The present invention is further configured as follows: the heat collecting strip is arranged at more than two intervals along the width direction of the liquid cooling panel, the heat collecting strip is composed of heat exchange fins which are kept parallel to each other, the top ends of the heat exchange fins are vertically fixed to the liquid cooling panel, the liquid cooling component includes a conveying component which slides along the length direction of the heat collecting strip, the conveying component as a whole is kept parallel to the width direction of the liquid cooling panel, and the number of conveying components is arranged at more than two locations, and adjacent conveying components are fixedly connected by connecting bins.

[0022] By adopting the above technical solution, the delivery and circulation of the cooling liquid is formed through the delivery component and the connecting chamber to cool the heat on the liquid cooling panel.

[0023] The present invention is further configured as follows: side plates are fixedly provided at the left and right ends of the bottom surface of the liquid cooling panel, the delivery assembly includes a delivery pipe for conveying coolant internally, a connecting pipe fixedly provided at the input and output ends of the delivery pipe, and a recess integrally provided on the delivery pipe, the upper surface of the delivery pipe is in sliding contact with the liquid cooling panel, the upper surface of the recess is in sliding contact with the heat exchange fins, adjacent delivery pipes are integrally connected to each other through a connecting bin to form a serpentine delivery structure, and the delivery pipe is a flat strip structure.

[0024] By adopting the above technical solution, the flat structure can reduce the installation space required under the liquid cooling panel.

[0025] The present invention is further configured as follows: a heat exchange groove is provided on the support plate, synchronization plates are fixedly installed on the bottom surface of the recess at intervals, and the secondary heat exchange component includes a synchronization component that cooperates with the synchronization plate in transmission, and a heat exchange component is arranged below the synchronization component, and the synchronization components are cooperated with each other through a transmission component.

[0026] By adopting the above technical solution, when the delivery pipe moves, a rotational force can be applied to the synchronization component through the synchronization plate.

[0027] The present invention is further configured as follows: the synchronization component includes a first rotating shaft with both ends rotatably connected to the heat exchange groove, a synchronization wheel coaxially fixed on the first rotating shaft and a transmission groove opened on the surface of the synchronization wheel, the synchronization wheel is kept in mesh with the synchronization plate through the transmission groove, the heat exchange component includes a second rotating shaft rotatably set on the support plate at both ends and a fan sheet fixed on the outer side of the second rotating shaft in a circular array, the transmission component includes a first gear and a second gear distributed and coaxially fixed on the first rotating shaft and the second rotating shaft, and the first gear and the second gear are kept in synchronous transmission cooperation through a transmission belt.

[0028] By adopting the above technical solution, the first rotating shaft and the second rotating shaft can maintain synchronous rotation, thereby improving the cooling effect of the liquid cooling panel.

[0029] The present invention is further configured as follows: the driving assembly includes a driving rope, a return assembly and a power assembly fixed at both ends of the driving rope, a guide wheel fixedly provided on the outer side of the side plate, the outer wall of the driving rope is in sliding contact with the guide wheel, a synchronization block is fixedly provided on the outer wall of the recess, and the driving rope is kept fixed inside the synchronization block.

[0030] By adopting the above technical solution, the driving rope can slide and adjust direction quickly through the guide wheel, and the driving rope can slide left and right.

[0031] The present invention is further configured as follows: the return assembly includes a guide seat with a bottom end fixedly connected to a support plate, a guide hole starting in the guide seat, a slider sliding along the guide hole, and a spring with one end fixed to the slider, the other end of the spring is fixedly connected to the bracket, the bottom end of the bracket is fixedly mounted on the support plate, the driving rope is fixedly connected to the surface of the slider after sliding into the bracket, a positioning plate is fixedly provided on the outer side of the side plate, the power assembly includes a winding rod, a support frame and a motor, both ends of the winding rod are rotatably mounted on the support frame, the output shaft of the motor is rotatably connected to the winding rod, and the driving rope is fixed to the surface of the winding rod after sliding into the positioning plate.

[0032] By adopting the above technical solution, when the conveying pipe needs to be laterally shifted to adjust the cooling area, the winding rod can be rotated by the motor.

[0033] The beneficial effects of the present invention are:

[0034] 1. The liquid cooling tube plate and the heating film with aluminum-based heating function are integrated together, which reduces the occupied space, facilitates the processing and integration of liquid cooling plates with complex special-shaped structures, and improves the high integration of the battery system. By rationally designing the structure of the aluminum-based heating film and the distribution of the thermal conductive structural adhesive, the bottom of the power battery is uniformly heated, which improves the stability and safety of the battery performance;

[0035] 2. The liquid cooling tube plate can promptly remove the heat generated by the battery through the aluminum base and thermal conductive adhesive, ensuring that the battery operates within a safe temperature range and ensuring the reliability and durability of the aluminum base heating film and liquid cooling system;

[0036] 3. The heat on the liquid cooling panel can be concentrated through the heat exchange fins, and the delivery pipe with a concave and flat structure can be used for heat exchange contact with the coolant. After the cooling area of ​​the plate has been cooled for a period of time, the delivery pipe is moved laterally along the heat dissipation fins through the driving component to exchange heat with the plate area that was not previously in contact, thereby improving the uniformity of heat dissipation and ensuring the heat exchange efficiency of the plate.

[0037] 4. When the conveying pipe is shifted for heat exchange, the synchronous wheel can be forced through the synchronous sheet, so that the hot and cold air on the upper and lower sides of the pallet can pass through the heat exchange groove, and quickly exchange heat under the drive of the heat exchange component. Without additional power support, the hot gas under the liquid cooling panel can be quickly exchanged and cooled, further improving the cooling and heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic diagram of a highly integrated thermal management method for a heating film aluminum substrate and a liquid cooling plate provided by an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of a liquid cooling assembly in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the structure of the connecting bin in an embodiment of the present invention;

[0042] Figure 4 It is a structural schematic diagram of a secondary heat exchange component in an embodiment of the present invention;

[0043] Figure 5 A schematic diagram of the structure of a synchronization component in an embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the structure inside the drive compartment in an embodiment of the present invention;

[0045] Figure 7 Schematic diagram of the structure of the return assembly in an embodiment of the present invention.

[0046] Figure 8 Schematic diagram of the structure of the power assembly in an embodiment of the present invention.

[0047] In the figure, 1, liquid cooling panel; 2, support plate; 3, heat collecting strip; 4, liquid cooling assembly; 5, secondary heat exchanger; 6, drive chamber; 11, side plate; 12, positioning plate; 21, heat exchange groove; 31, heat exchange fin; 41, conveying assembly; 42, connecting chamber; 411, conveying pipe; 412, connecting pipe; 413, recess; 414, synchronous plate; 51, synchronous assembly; 52, heat exchange assembly; 53, transmission assembly; 511, first rotating shaft; 5 12. Synchronous wheel; 513. Transmission groove; 521. Second rotating shaft; 522. Fan blade; 531. First gear; 532. Second gear; 533. Transmission belt; 61. Driving rope; 62. Return assembly; 63. Power assembly; 64. Guide wheel; 65. Synchronous block; 621. Guide seat; 622. Guide hole; 623. Slider; 624. Spring; 625. Bracket; 631. Winding rod; 632. Support frame; 633. Motor. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] The embodiment of the present invention specifically provides a highly integrated thermal management method of a heating film aluminum substrate and a liquid cooling plate, the method comprising the following steps:

[0050] S1. Select aluminum-based flexible and highly thermally conductive materials as the substrate of the heating film. Aluminum-based flexible and highly thermally conductive materials include 1 series or 3 series alloy aluminum plates, graphite films or metal foils. When preparing the substrate, its tensile strength, yield strength and hardness mechanical properties need to be checked to meet sufficient stability and lifespan;

[0051] S2. Prepare conductive heating materials, which include carbon nanotubes or metal etching circuits. When using metal etching circuits, attention should be paid to their line width, line spacing and accuracy.

[0052] S3. Select appropriate insulating material for encapsulating the heating wire;

[0053] S4. Prepare liquid cooling tube sheet and coolant;

[0054] S5. Evenly distribute the conductive heating material on the base insulating material. The distribution process adopts etching or die-cutting technology to ensure the uniformity and consistency of the heating wire;

[0055] S6. Encapsulate the heating wire of the heating film with insulating material and press it with the aluminum substrate for integration. When encapsulating the heating wire of the heating film, ensure that the insulating material completely covers the heating wire and there are no bubbles or gaps between the encapsulation layer and the aluminum substrate.

[0056] S7. Fix the liquid cooling tube plate and the aluminum-based heating film in close contact to improve the heat dissipation efficiency. If the contact between the liquid cooling plate and the heating film is poor, the heat transfer efficiency may decrease.

[0057] By adopting the above steps, as one of the implementation methods, when implementing, metal copper foil is selected as the heating wire, 1027 aluminum is selected as the substrate, and high temperature resistant and good insulating materials are selected for packaging. Prepare a liquid cooling (direct cooling) plate and a dedicated battery coolant;

[0058] The metal copper foil is evenly distributed on the insulating film by etching or die-cutting process, and then encapsulated with insulating material and pressed and thermoset integrated with the bottom aluminum substrate;

[0059] The aluminum-based heating film is fixed to the bottom of the liquid cooling plate, the gap is filled with thermal conductive glue to conduct heat, and then the fixed area is designed with laser welding to ensure good contact welding and prevent the stand from vibrating and falling off. This makes the liquid cooling tube plate have the advantages of high integration, uniform heating, efficient heat dissipation, and high safety and reliability. It can effectively improve the performance and safety of power batteries in low temperature environments and has broad application prospects.

[0060] The management method also includes the following steps:

[0061] S8. Conduct electrical performance tests on the manufactured aluminum-based heating film, including resistance, power and insulation withstand voltage test parameters.

[0062] S9. Conduct liquid cooling performance test and detect the flow rate and temperature indicators of the coolant.

[0063] S10. Simulate the actual use environment and test the collaborative working performance of the aluminum-based heating film and the liquid-cooling tube plate.

[0064] Carry out tests according to the above performance test methods to ensure that the performance of the aluminum-based heating film and liquid cooling system meets the requirements.

[0065] For further information, please refer to Figure 1 The liquid cooling tube plate includes a liquid cooling panel 1, a support plate 2, a heat collecting strip 3, a liquid cooling component 4, a secondary heat exchange component 5 and a driving compartment 6.

[0066] Among them, the upper surface of the liquid cooling panel 1 is used to be fixed with the aluminum-based heating film, so as to provide heat dissipation support for the aluminum-based heating film, the support plate 2 is arranged at intervals below the liquid cooling panel 1, the heat collecting strip 3 is fixedly arranged on the lower surface of the liquid cooling panel 1, and the heat collecting strip 3 is kept parallel to the length direction of the liquid cooling panel 1, and the liquid cooling component 4 is slidably arranged on the heat collecting strip 3, so as to avoid the limited contact heat exchange space of the liquid cooling component and improve the heat exchange efficiency. The secondary heat exchange component 5 is slidably matched with the bottom surface of the liquid cooling component 4, and the heat exchange efficiency of the air around the liquid cooling component 4 is improved through the secondary heat exchange component 5. The driving compartment 6 is fixed to the upper surface of the support plate 2, and a driving component for driving the liquid cooling component 4 to move is arranged in the driving compartment 6.

[0067] For details, please refer to Figure 2 The heat collecting strip 3 is provided at two or more places along the width direction of the liquid cooling panel 1 at intervals. The heat collecting strip 3 is composed of heat exchange fins 31 which are kept parallel to each other. The top of the heat exchange fin 31 is vertically fixed to the liquid cooling panel 1, so that the heat on the liquid cooling panel 1 is absorbed by the heat exchange fin 31, thereby improving the cooling effect of the liquid cooling panel 1, and at the same time, it is convenient to concentrate the heat for cooling through the liquid cooling component 4.

[0068] Please refer to Figure 2 and Figure 3 The liquid cooling component 4 includes a conveying component 41 sliding along the length direction of the heat collecting strip 3. The conveying component 41 as a whole remains parallel to the width direction of the liquid cooling panel 1, and the number of conveying components 41 is set at more than two. Adjacent conveying components 41 are fixedly connected by connecting bins 42, so that the conveying component 41 and the connecting bins 42 form the transportation and circulation of the cooling liquid to cool the heat on the liquid cooling panel 1.

[0069] During implementation, side panels 11 are fixedly provided at the left and right ends of the bottom surface of the liquid-cooled panel 1, and the side panels 11 are used to limit the left and right moving distance of the conveying component 41 to prevent it from slipping out of the range of the liquid-cooled panel 1. The conveying component 41 includes an internal conveying pipe 411 for conveying coolant, a connecting pipe 412 fixedly provided at the input and output ends of the conveying pipe 411, and a recess 413 integrally provided on the conveying pipe 411. The connecting pipe 412 is used to be connected to an external coolant conveying device so that the coolant can circulate inside the conveying pipe 411.

[0070] The upper surface of the delivery pipe 411 is in sliding contact with the liquid cooling panel 1, and the upper surface of the recess 413 is in sliding contact with the heat exchange fins 31, so that the coolant can quickly cool the heat on the liquid cooling panel 1 and the heat exchange fins 31 through contact heat exchange;

[0071] Adjacent delivery pipes 411 are connected to each other through a connecting bin 42 to form a serpentine delivery structure. The delivery pipe 411 is a flat strip structure. The circulation of the coolant is completed through the serpentine delivery structure. The flat structure can reduce the installation space under the liquid cooling panel 1 to accommodate more moldings and save subsequent installation space. At the same time, it can also improve the contact heat exchange efficiency of the coolant.

[0072] For further information, please refer to Figure 4 A heat exchange groove 21 is provided on the support plate 2, and the heat exchange groove 21 runs through the upper and lower surfaces of the support plate 2. The bottom surface of the recess 413 is fixedly installed with synchronization plates 414 distributed at intervals, and the synchronization plates 414 are parallel to the width direction of the recess 413 as a whole.

[0073] Specifically, the secondary heat exchange component 5 includes a synchronization component 51 that is transmitted and cooperated with the synchronization plate 414, and a heat exchange component 52 arranged below the synchronization component 51. The synchronization components 51 and the synchronization components 51 are transmitted and cooperated through a transmission component 53. When the delivery pipe 411 moves, the synchronization plate 414 can apply a rotational force to the synchronization component 51, so that the heat exchange component 52 can start to work, thereby accelerating the heat exchange rate of the cold and hot gases on the upper and lower surfaces of the support plate 2 and improving the heat dissipation effect.

[0074] Please refer to Figure 5 The synchronization component 51 includes a first rotating shaft 511 whose two ends are rotatably connected to the heat exchange groove 21, a synchronization wheel 512 coaxially fixed on the first rotating shaft 511, and a transmission groove 513 opened on the surface of the synchronization wheel 512. The synchronization wheel 512 is meshed with the synchronization plate 414 through the transmission groove 513, so that when the synchronization plate 414 moves in the left and right direction, a rotational force can be applied to the synchronization wheel 512 through the transmission groove 513, so that the first rotating shaft 511 rotates.

[0075] Among them, the heat exchange component 52 includes a second rotating shaft 521 with both ends rotatably arranged on the support plate 2 and fan blades 522 fixedly arranged on the outer side of the second rotating shaft 521 in a circular array. The second rotating shaft 521 receives the synchronous rotation force of the first rotating shaft 511 through the transmission component 53, which can drive the fan blades 522 to rotate, so as to fan the hot and cold air on the upper and lower surfaces of the support plate 2 through the heat exchange groove 21, so as to accelerate the gas flow and improve the heat exchange efficiency.

[0076] During implementation, the transmission assembly 53 includes a first gear 531 and a second gear 532 which are coaxially fixed on the first rotating shaft 511 and the second rotating shaft 521. The first gear 531 and the second gear 532 are synchronized through a transmission belt 533, so that the first rotating shaft 511 and the second rotating shaft 521 can maintain synchronous rotation, thereby improving the cooling effect of the liquid cooling panel 1.

[0077] For further information, please refer to Figure 6 The driving assembly includes a driving rope 61, a return assembly 62 and a power assembly 63 fixed at both ends of the driving rope 61, and a guide wheel 64 fixed on the outer side of the side plate 11. The outer wall of the driving rope 61 is in sliding contact with the guide wheel 64, and a synchronization block 65 is fixed on the outer wall of the recess 413. The driving rope 61 and the inside of the synchronization block 65 remain fixed. The driving rope 61 is quickly slid and adjusted through the guide wheel 64, and when the driving rope 61 slides left and right, it will apply force to the recess 413 through the synchronization block 65, so that the conveying pipe 411 can move left and right to adjust the contact position with the liquid cooling panel 1 and the heat dissipation fin 31, so that when the temperature at other positions is high, it can move horizontally for cooling, and then move again when the temperature at the original position is high, and so on, thereby improving the cooling efficiency of the liquid cooling panel 1.

[0078] For details, please refer to Figure 7 The return assembly 62 includes a guide seat 621 whose bottom end is fixedly connected to the support plate 2, a guide hole 622 starting from the guide seat 621, a slider 623 sliding along the guide hole 622 and a spring 624 whose one end is fixed to the slider 623. The other end of the spring 624 is fixedly connected to the bracket 625. The bottom end of the bracket 625 is fixed on the support plate 2, so that when the slide frame 623 is pulled by the driving rope 61, the spring 624 will be compressed to generate a return elastic force. After the driving rope 61 slides into the bracket 625, it is fixedly connected to the surface of the slider 623. A positioning plate 12 is fixedly provided on the outer side of the side plate 11. When the other end of the driving rope 61 is subjected to force through the power assembly 63, it will pull the slider 623 to move, and then return to its original position through the spring 624.

[0079] Please refer to Figure 8The power assembly 63 includes a rolling rod 631, a support frame 632 and a motor 633. Both ends of the rolling rod 631 are rotatably installed on the support frame 632. The output shaft of the motor 633 is rotatably connected to the rolling rod 631. The outer side of the motor 633 is fixed to the support plate 2. After the driving rope 61 slides into the positioning plate 12, it is fixed to the surface of the rolling rod 631. When it is necessary to shift the conveying pipe 411 laterally to adjust the cooling area, the motor 633 can be used to rotate the rolling rod 631, so that the rolling rod 631 rolls the driving rope 61, causing the driving rope 61 to slide laterally, thereby driving the conveying pipe 411 to move laterally.

[0080] It is worth noting that the materials related to heat exchange in the present technical solution can be made of common aluminum alloy materials, or can be composed of other heat exchange materials that meet the strength of the installation structure.

[0081] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly integrated thermal management method for a heating film aluminum base and a liquid cooling plate, characterized in that: The method comprises the following steps: S1. Selecting an aluminum-based flexible and highly thermally conductive material as the substrate of the heating film; S2, preparing a conductive heating material, wherein the conductive heating material includes carbon nanotubes or metal etching circuits; S3. Select appropriate insulating material for encapsulating the heating wire; S4. Prepare liquid cooling tube sheet and coolant; S5. Evenly distribute the conductive heating material on the base insulating material, and the distribution process adopts etching or die-cutting process; S6, encapsulating the heating wire of the heating film with an insulating material, and pressing and integrating it with the aluminum substrate; S7. Fix the liquid cooling tube plate and the aluminum-based heating film in close contact.

2. The highly integrated thermal management method of heating film aluminum substrate and liquid cooling plate according to claim 1 is characterized in that: The aluminum-based flexible and highly thermally conductive material includes a 1-series or 3-series alloy aluminum plate, a graphite film or a metal foil.

3. A highly integrated thermal management method for a heating film aluminum substrate and a liquid cooling plate according to claim 2, characterized in that: The management method further comprises the following steps: S8. Conduct electrical performance tests on the manufactured aluminum-based heating film, including resistance, power and insulation withstand voltage test parameters. S9. Conduct liquid cooling performance test and detect the flow rate and temperature indicators of the coolant. S10. Simulate the actual use environment and test the collaborative working performance of the aluminum-based heating film and the liquid-cooling tube plate.

4. The highly integrated thermal management method of heating film aluminum substrate and liquid cooling plate according to claim 3 is characterized in that: The liquid cooling tube plate comprises a liquid cooling panel (1), a support plate (2), a heat collecting strip (3), a liquid cooling component (4), a secondary heat exchanger (5) and a drive chamber (6); the upper surface of the liquid cooling panel (1) is used for fixing with an aluminum-based heating film; the support plate (2) is arranged below the liquid cooling panel (1) at intervals; the heat collecting strip (3) is fixedly arranged on the lower surface of the liquid cooling panel (1), and the heat collecting strip (3) and the liquid cooling panel (1) are kept parallel in length direction; the liquid cooling component (4) is slidably arranged on the heat collecting strip (3); the secondary heat exchanger (5) is slidably matched with the bottom surface of the liquid cooling component (4); the drive chamber (6) is fixed to the upper surface of the support plate (2); and a drive chamber (6) is provided with a drive component for driving the liquid cooling component (4) to move.

5. The highly integrated thermal management method of heating film aluminum substrate and liquid cooling plate according to claim 4 is characterized in that: The heat collecting strip (3) is arranged at two or more intervals along the width direction of the liquid cooling panel (1), the heat collecting strip (3) is composed of heat exchange fins (31) which are kept parallel to each other, and the top of the heat exchange fin (31) is vertically fixed to the liquid cooling panel (1), and the liquid cooling component (4) includes a conveying component (41) which slides along the length direction of the heat collecting strip (3), the conveying component (41) as a whole is kept parallel to the width direction of the liquid cooling panel (1), and the number of conveying components (41) is arranged at two or more, and adjacent conveying components (41) are fixedly connected by a connecting bin (42).

6. A highly integrated thermal management method for a heating film aluminum substrate and a liquid cooling plate according to claim 5, characterized in that: The liquid cooling panel (1) has side plates (11) fixedly disposed at both left and right ends of the bottom surface. The conveying assembly (41) comprises a conveying pipe (411) for conveying cooling liquid, a connecting pipe (412) fixedly disposed at the input and output ends of the conveying pipe (411), and a recess (413) integrally disposed on the conveying pipe (411). The upper surface of the conveying pipe (411) is in sliding contact with the liquid cooling panel (1), and the upper surface of the recess (413) is in sliding contact with the heat exchange fins (31). Adjacent conveying pipes (411) are integrally connected to each other through a connecting bin (42) to form a serpentine conveying structure. The conveying pipe (411) is in a flat strip structure.

7. A highly integrated thermal management method for a heating film aluminum substrate and a liquid cooling plate according to claim 6, characterized in that: The support plate (2) is provided with a heat exchange groove (21), and the bottom surface of the recess (413) is fixedly provided with synchronization plates (414) distributed at intervals. The secondary heat exchange component (5) comprises a synchronization component (51) that is transmission-matched with the synchronization plate (414), and a heat exchange component (52) arranged below the synchronization component (51). The synchronization components (51) and the synchronization components (51) are transmission-matched with each other through a transmission component (53).

8. The highly integrated thermal management method of heating film aluminum substrate and liquid cooling plate according to claim 7 is characterized in that: The synchronization component (51) comprises a first rotating shaft (511) whose two ends are rotatably connected to the heat exchange groove (21), a synchronization wheel (512) coaxially fixed on the first rotating shaft (511), and a transmission groove (513) opened on the surface of the synchronization wheel (512), the synchronization wheel (512) is kept in mesh with the synchronization plate (414) through the transmission groove (513), the heat exchange component (52) comprises a second rotating shaft (521) whose two ends are rotatably arranged on the support plate (2) and a fan plate (522) fixed on the outer side of the second rotating shaft (521) in a circumferential array, and the transmission component (53) comprises a first gear (531) and a second gear (532) coaxially fixed on the first rotating shaft (511) and the second rotating shaft (521), and the first gear (531) and the second gear (532) are kept in synchronous transmission cooperation through a transmission belt (533).

9. The highly integrated thermal management method of heating film aluminum substrate and liquid cooling plate according to claim 8, characterized in that: The driving assembly comprises a driving rope (61), a return assembly (62) and a power assembly (63) fixed at both ends of the driving rope (61), a guide wheel (64) fixedly arranged on the outer side of the side plate (11), the outer wall of the driving rope (61) is in sliding contact with the guide wheel (64), the outer wall of the recess (413) is fixedly arranged with a synchronization block (65), and the driving rope (61) and the inside of the synchronization block (65) are kept fixed.

10. A highly integrated thermal management method for heating film aluminum substrate and liquid cooling plate according to claim 9, characterized in that: The return assembly (62) comprises a guide seat (621) whose bottom end is fixedly connected to the support plate (2), a guide hole (622) starting from the guide seat (621), a slider (623) sliding along the guide hole (622), and a spring (624) whose one end is fixed to the slider (623), the other end of the spring (624) is fixedly connected to a bracket (625), the bottom end of the bracket (625) is fixedly arranged on the support plate (2), and the driving rope (61) slides into the bracket (623). 25) and then fixedly connected to the surface of the slider (623); a positioning plate (12) is fixedly provided on the outer side of the side plate (11); the power assembly (63) comprises a rolling rod (631), a support frame (632) and a motor (633); both ends of the rolling rod (631) are rotatably mounted on the support frame (632); the output shaft of the motor (633) is rotatably connected to the rolling rod (631); and the driving rope (61) is kept fixed to the surface of the rolling rod (631) after sliding into the positioning plate (12).

Images