A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate

By adopting a high-integration structure of aluminum-based heating film and liquid-cooled plate in the power battery, the problems of uneven heating, low efficiency and poor cooling efficiency are solved, and the high integration and safe and reliable thermal management of the power battery are achieved.

CN119560690BActive Publication Date: 2025-07-18HUBEI ZHONGYU HENGTONG NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202411767546.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-07-18
Estimated Expiration
2044-12-04

AI Technical Summary

Technical Problem

In the prior art, the power battery has uneven heating, low efficiency, large space occupancy, low integration of liquid cooling and heating functions, and poor liquid cooling efficiency.

Method used

Flexible, highly heat-conducting aluminum-based material is used as the heating film substrate, combined with carbon nanotubes or metal etching lines as the conductive heating material, and in close contact with the liquid-cooled tube plate, the heating wire is evenly distributed through etching or die-cutting processes, and encapsulated using insulating materials to form a highly integrated structure between the aluminum-based heating film and the liquid-cooled plate, and the heat distribution and efficient cooling are achieved in combination with the conveying components and synchronous components.

Benefits of technology

It realizes uniform heating at the bottom of the power battery, improves the stability and safety of battery performance, ensures that the battery operates within the safe temperature range, enhances the reliability and durability of the liquid cooling system, and improves cooling efficiency and integration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of power batteries, and discloses a high-integration thermal management method for a heating film aluminum substrate and a liquid cooling plate. By selecting an aluminum-based flexible and highly thermally conductive material as the substrate of the heating film, a conductive heating material is prepared. The conductive heating material includes carbon nanotubes or metal etched circuits, and a suitable insulating material is selected for encapsulating the heating wire. The present invention has the following advantages and effects: integrating the liquid cooling tube plate and the heating film with aluminum-based heating function together reduces the occupied space, facilitates the processing and integration of the liquid cooling plate with a complex shape and structure, improves the high integration of the battery system, and through reasonable design of the structure of the aluminum-based heating film and the distribution of the thermally conductive structural adhesive, uniform heating of the bottom of the power battery is achieved, improving the stability of the battery performance. The liquid cooling tube plate can timely dissipate the heat generated by the battery, ensure that the battery works within a safe temperature range, and ensure the reliability and durability of the aluminum-based heating film and the liquid cooling system.
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Description

Technical Field

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

[0002] New energy vehicles do not use fuel power devices, nor do they require diesel or gasoline. Instead, they use clean energy such as electricity and solar energy, which can significantly reduce the 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 increasing attention. In a low-temperature environment, the performance of power batteries will significantly decline, affecting the vehicle's cruising range and performance.

[0004] To solve this problem, it is usually necessary to heat the power battery. However, 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 the heat dissipation of power batteries, but how to efficiently, safely, and conveniently integrate liquid cooling (direct cooling) and heating functions has always been a technical problem to be solved.

[0005] At the same time, for the liquid cooling plate used in traditional 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 an aluminum-based heating film and a liquid cooling plate to solve the problems of uneven heating, dry burning, low efficiency, large space occupation, low safety and convenience integration degree of liquid cooling and heating functions, and poor heat exchange efficiency existing in the prior art.

[0007] The above technical purpose of the present invention is achieved through the following technical solutions: A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate, comprising the following steps:

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

[0009] S2. Prepare a conductive heating material, and the conductive heating material includes carbon nanotubes or metal etched circuits;

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

[0011] S4. Prepare a liquid cooling tube plate;

[0012] S5. Uniformly distribute the conductive heating material on the substrate insulating material, and the distribution process uses an etching or die-cutting process;

[0013] S6. Encapsulate the heating metal wire of the heating film with insulating material and press and integrate it with the aluminum substrate;

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

[0015] A further setting of the present invention is that: the aluminum-based flexible and highly thermally conductive material includes 1-series or 3-series alloy aluminum plates, graphite films or metal foils.

[0016] A further setting of the present invention is that: the management method further includes the following steps:

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

[0018] S9. Simulate the actual use environment and test the cooperative working performance of the aluminum-based heating film and the liquid cooling tube plate.

[0019] A further setting of the present invention is that: the liquid cooling tube plate includes a liquid cooling panel, a support plate, a heat collecting strip, a liquid cooling component, a secondary heat exchange component, and a driving chamber. The upper surface of the liquid cooling panel is used for fixing with the aluminum-based heating film. The support plate is spaced below the liquid cooling panel. The heat collecting strip is fixedly arranged on the lower surface of the liquid cooling panel and is parallel to the length direction of the liquid cooling panel. The liquid cooling component is slidably arranged on the heat collecting strip. The secondary heat exchange component is slidably matched with the bottom surface of the liquid cooling component. The driving chamber is fixed to the upper surface of the support plate, and a driving component for driving the displacement of the liquid cooling component is arranged in the driving chamber.

[0020] A further setting of the present invention is that: there are more than two heat collecting strips arranged at intervals along the width direction of the liquid cooling panel. The heat collecting strip is composed of heat exchange fins that are parallel to each other. The top of the heat exchange fin is vertically fixed to the liquid cooling panel. The liquid cooling component includes a conveying component that slides along the length direction of the heat collecting strip. The conveying component as a whole is parallel to the width direction of the liquid cooling panel, and the number of the conveying components is more than two. Adjacent conveying components are fixedly connected by a connecting chamber.

[0021] By adopting the above technical solution, the conveyance and circulation of the coolant are formed through the conveying component and the connecting chamber to cool the heat on the liquid cooling panel.

[0022] A further setting of the present invention is that: side plates are fixedly arranged at the left and right ends of the bottom surface of the liquid cooling panel. The conveying component includes a conveying pipe for conveying the coolant inside, connection pipes fixed to the input and output ends of the conveying pipe, and recesses integrally arranged on the conveying pipe. The upper surface of the conveying pipe is in sliding contact with the liquid cooling panel, and the upper surface of the recess is in sliding contact with the heat exchange fin. Adjacent conveying pipes are integrally connected by a connecting chamber to form a serpentine conveying structure, and the conveying pipe is in a flat strip structure.

[0023] By adopting the above technical solution, the flat structure can reduce the installation space required under the liquid cooling panel.

[0024] The further setting of the present invention is that heat exchange grooves are provided on the pallet, synchronous sheets are fixedly installed at intervals on the bottom surface of the concave part, the secondary heat exchange member includes a synchronous component in transmission cooperation with the synchronous sheet, a heat exchange component arranged below the synchronous component, and the synchronous components are in transmission cooperation through a transmission component.

[0025] By adopting the above technical solution, when the conveying pipe moves, a rotational acting force can be applied to the synchronous component through the synchronous sheet.

[0026] The further setting of the present invention is that the synchronous component includes a first rotating shaft rotatably connected to the heat exchange groove at both ends, a synchronous wheel coaxially fixed on the first rotating shaft, and a transmission groove provided on the surface of the synchronous wheel. The synchronous wheel is kept engaged with the synchronous sheet through the transmission groove. The heat exchange component includes a second rotating shaft rotatably arranged at both ends on the pallet and fan blades fixedly arranged on the outer side of the second rotating shaft in a circumferential array manner. The transmission component includes a first gear and a second gear coaxially fixed on the first rotating shaft and the second rotating shaft respectively, and the first gear and the second gear are kept in synchronous transmission cooperation through a transmission belt.

[0027] By adopting the above technical solution, the first rotating shaft and the second rotating shaft can be kept rotating synchronously, improving the cooling effect of the liquid cooling panel.

[0028] The further setting of the present invention is that the driving component includes a driving rope, return components and a power component fixed at both ends of the driving rope, a guide wheel is fixedly arranged on the outer side of the side plate, the outer wall of the driving rope is in sliding contact with the guide wheel, a synchronous block is fixedly arranged on the outer wall of the concave part, and the driving rope is fixed inside the synchronous block.

[0029] By adopting the above technical solution, the driving rope slides and changes direction quickly through the guide wheel, and when the driving rope slides left and right.

[0030] The further setting of the present invention is that the return component includes a guide seat fixedly connected to the pallet at the bottom end, a guide hole opened 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 fixed to the bracket, the bottom end of the bracket is fixedly arranged on the pallet, the driving rope is fixedly connected to the surface of the slider after sliding into the bracket, a positioning plate is fixedly arranged on the outer side of the side plate, and the power component includes a winding rod, a support frame and a motor. The two ends of the winding rod are rotatably installed 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.

[0031] By adopting the above technical solution, when it is necessary to laterally displace the conveying pipe to adjust the cooling area, the motor can be rotated to rotate the winding rod.

[0032] The beneficial effects of the present invention are:

[0033] 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;

[0034] 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;

[0035] 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.

[0036] 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

[0037] 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.

[0038] Figure 1 A schematic diagram of the structure of a highly integrated thermal management method of an aluminum-based heating film and a liquid cooling plate provided by an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of a liquid cooling assembly in an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the structure of the connecting bin in an embodiment of the present invention;

[0041] Figure 4 It is a structural schematic diagram of a secondary heat exchange component in an embodiment of the present invention;

[0042] Figure 5 A schematic diagram of the structure of a synchronization component in an embodiment of the present invention;

[0043] Figure 6 This is a schematic structural diagram of the interior of the drive chamber in the embodiment of the present invention;

[0044] Figure 7 This is a schematic structural diagram of the return component in the embodiment of the present invention;

[0045] Figure 8 This is a schematic structural diagram of the power component in the embodiment of the present invention.

[0046] In the figure, 1, liquid cooling panel; 2, pallet; 3, heat collecting strip; 4, liquid cooling component; 5, secondary heat exchange member; 6, drive chamber; 11, side plate; 12, positioning plate; 21, heat exchange groove; 31, heat exchange fins; 41, conveying component; 42, connecting chamber; 411, conveying pipe; 412, connecting pipe; 413, recess; 414, synchronizing piece; 51, synchronizing component; 52, heat exchange component; 53, transmission component; 511, first rotating shaft; 512, synchronizing wheel; 513, transmission groove; 521, second rotating shaft; 522, fan blade; 531, first gear; 532, second gear; 533, transmission belt; 61, drive rope; 62, return component; 63, power component; 64, guide wheel; 65, synchronizing block; 621, guide seat; 622, guide hole; 623, slider; 624, spring; 625, bracket; 631, winding rod; 632, support frame; 633, motor. Detailed implementation manners

[0047] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0048] The embodiment of the present invention specifically provides a high-integration heat management method for an aluminum-based heating film and a liquid cooling plate, and the method includes the following steps:

[0049] S1. Select a flexible and highly thermally conductive aluminum-based material as the substrate of the heating film. The aluminum-based flexible and highly thermally conductive material includes 1-series or 3-series alloy aluminum plates, graphite films or metal foil sheets. When preparing the substrate, it is necessary to check its mechanical properties such as tensile strength, yield strength and hardness to meet sufficient use stability and lifespan;

[0050] S2. Prepare a conductive heating material. The conductive heating material includes carbon nanotubes or metal etched circuits for preparing heating wires. When using metal etched circuits, it is necessary to pay attention to its line width, line pitch and accuracy;

[0051] S3. Select a suitable insulating material for encapsulating the heating wires;

[0052] S4. Prepare the liquid-cooled tube sheet;

[0053] S5. Uniformly distribute the conductive heating material on the base insulating material. During the distribution process, use etching or die-cutting processes to prepare the heating wire to ensure the uniformity and consistency of the heating wire;

[0054] S6. Encapsulate the heating film heating metal wire with insulating material and press it together with the aluminum substrate to integrate the aluminum-based heating film. When encapsulating the heating film heating metal wire, it is necessary to ensure that the insulating material completely covers the heating wire, and there are no bubbles and voids between the encapsulation layer and the aluminum substrate;

[0055] S7. Closely contact and fix the liquid-cooled tube sheet with the aluminum-based heating film to improve the heat dissipation efficiency. If the contact between the liquid-cooled plate and the heating film is poor, it may lead to a decrease in the heat transfer efficiency.

[0056] By adopting the above steps, as one implementation method, during implementation, select metal copper foil as the heating wire, select 1027 aluminum as the base, and select materials with high temperature resistance and good insulation for encapsulation. Prepare the liquid-cooled (direct cooling) plate and special battery coolant;

[0057] Use etching or die-cutting processes to uniformly distribute the metal copper foil on the insulating film, then encapsulate it with insulating material, and press and thermoset it together with the bottom aluminum substrate for integration;

[0058] Fix the aluminum-based heating film at the bottom of the liquid-cooled plate, fill the gap with thermal conductive adhesive for heat conduction, and then use laser welding to design the fixed area to ensure good contact welding and prevent it from falling off due to the vibration of the anti-stage frame. Thus, the liquid-cooled tube sheet has the advantages of high integration, uniform heating, high-efficiency heat dissipation, and high safety and reliability, can effectively improve the performance and safety of the power battery in a low-temperature environment, and has broad application prospects.

[0059] The management method further includes the following steps:

[0060] S8. Conduct electrical performance tests on the fabricated aluminum-based heating film, including resistance, power, and insulation withstand voltage test parameters;

[0061] S9. Simulate the actual use environment and test the cooperative working performance of the aluminum-based heating film and the liquid-cooled tube sheet.

[0062] Conduct tests according to the above performance test method to ensure that the performance of the aluminum-based heating film and the liquid-cooling system meets the requirements.

[0063] Furthermore, please refer to Figure 1 , the liquid-cooled tube sheet includes a liquid-cooled panel 1, a support plate 2, a heat collecting strip 3, a liquid-cooling component 4, a secondary heat exchange component 5, and a drive compartment 6.

[0064] Among them, the upper surface of the liquid cooling panel 1 is used to fix with the aluminum-based heating film, so as to provide heat dissipation support for the aluminum-based heating film. The pallet 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 parallel to the length direction of the liquid cooling panel 1. The liquid cooling component 4 is arranged on the heat collecting strip 3 in a slidable manner, 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 part 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 part 5. The driving chamber 6 is fixed to the upper surface of the pallet 2, and a driving component for driving the displacement of the liquid cooling component 4 is arranged in the driving chamber 6.

[0065] Specifically, please refer to Figure 2 , there are more than two heat collecting strips 3 arranged at intervals along the width direction of the liquid cooling panel 1. The heat collecting strip 3 is composed of heat exchange fins 31 that are parallel to each other. The top of the heat exchange fin 31 is vertically fixed to the liquid cooling panel 1, so as to absorb the heat on the liquid cooling panel 1 through the heat exchange fin 31, improve the cooling effect of the liquid cooling panel 1, and at the same time facilitate the concentration of heat for cooling by the liquid cooling component 4.

[0066] Among them, please refer to Figure 2 and Figure 3 , the liquid cooling component 4 includes a conveying component 41 that slides along the length direction of the heat collecting strip 3. The conveying component 41 as a whole is parallel to the width direction of the liquid cooling panel 1, and the number of the conveying components 41 is more than two. The adjacent conveying components 41 are fixedly connected through a connecting chamber 42, so as to form the conveyance and circulation of the coolant through the conveying component 41 and the connecting chamber 42 to cool the heat on the liquid cooling panel 1.

[0067] During implementation, side plates 11 are fixedly arranged at the left and right ends of the bottom surface of the liquid cooling panel 1 to limit the left and right moving distance of the conveying component 41 and prevent it from sliding out of the range of the liquid cooling panel 1. The conveying component 41 includes a conveying pipe 411 for conveying the coolant inside, connecting pipes 412 fixed to the input and output ends of the conveying pipe 411, and recesses 413 integrally arranged on the conveying pipe 411. The connecting pipes 412 are used to connect with external coolant conveying equipment to enable the coolant to form a circulation inside the conveying pipe 411.

[0068] Among them, 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 fin 31, so as to enable the coolant to quickly cool the heat on the liquid cooling panel 1 and the heat exchange fin 31 through contact heat exchange;

[0069] The adjacent conveying pipes 411 are integrally connected through the connecting bin 42 to form a serpentine conveying structure. The conveying pipes 411 are in a flat strip structure. The circulation of the coolant is completed through the serpentine conveying structure. And with the flat structure, the installation space required under the liquid cooling panel 1 can be reduced to adapt to more moldings, saving the subsequent installation space. At the same time, the contact heat exchange efficiency of the coolant can also be improved.

[0070] Further, please refer to Figure 4 , heat exchange grooves 21 are formed on the pallet 2. The heat exchange grooves 21 penetrate through the upper and lower surfaces of the pallet 2. Synchronization pieces 414 are fixedly installed at intervals on the bottom surface of the recess 413. The synchronization pieces 414 are parallel to the width direction of the recess 413 as a whole.

[0071] Specifically, the secondary heat exchange member 5 includes a synchronization assembly 51 in transmission cooperation with the synchronization piece 414, a heat exchange assembly 52 disposed below the synchronization assembly 51. The synchronization assembly 51 and the synchronization assembly 51 are in transmission cooperation through a transmission assembly 53. When the conveying pipe 411 moves, a rotational force can be applied to the synchronization assembly 51 through the synchronization piece 414, so that the heat exchange assembly 52 can start to act, accelerating the heat exchange rate of the hot and cold gases on the upper and lower surfaces of the pallet 2 and improving the heat dissipation effect.

[0072] Among them, please refer to Figure 5 , the synchronization assembly 51 includes a first rotating shaft 511 rotatably connected to the heat exchange groove 21 at both ends, a synchronization wheel 512 coaxially fixed on the first rotating shaft 511, and a transmission groove 513 formed on the surface of the synchronization wheel 512. The synchronization wheel 512 is engaged with the synchronization piece 414 through the transmission groove 513, so that when the synchronization piece 414 moves in the left-right direction, a rotational force can be applied to the synchronization wheel 512 through the transmission groove 513, causing the first rotating shaft 511 to rotate.

[0073] Among them, the heat exchange assembly 52 includes a second rotating shaft 521 rotatably provided at both ends on the pallet 2 and fan blades 522 fixedly provided on the outer side of the second rotating shaft 521 in a circumferential array. The second rotating shaft 521 receives the synchronous rotational force of the first rotating shaft 511 through the transmission assembly 53, and 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 pallet 2 through the heat exchange groove 21 to accelerate the gas flow and improve the heat exchange efficiency.

[0074] During implementation, the transmission assembly 53 includes a first gear 531 and a second gear 532 coaxially fixed on the first rotating shaft 511 and the second rotating shaft 521 respectively. The first gear 531 and the second gear 532 are in synchronous transmission cooperation through a transmission belt 533, so that the first rotating shaft 511 and the second rotating shaft 521 can maintain synchronous rotation, improving the cooling effect of the liquid cooling panel 1.

[0075] Further, please refer to Figure 6, the driving assembly includes a driving rope 61, return components 62 and a power component 63 fixed to both ends of the driving rope 61. A guide pulley 64 is fixedly provided on the outer side of the side plate 11. The outer wall of the driving rope 61 is in sliding contact with the guide pulley 64. A synchronous block 65 is fixedly provided on the outer wall of the recess 413. The driving rope 61 is fixed inside the synchronous block 65. The driving rope 61 slides quickly and changes direction through the guide pulley 64. When the driving rope 61 slides left and right, it will apply force to the recess 413 through the synchronous 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 fins 31, so that when the temperature is higher in other positions, it can move horizontally for cooling, and then move back when the temperature at the original position is high, and so on, improving the cooling efficiency of the liquid cooling panel 1.

[0076] Specifically, please refer to Figure 7 , the return component 62 includes a guide seat 621 fixedly connected to the bottom end of 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 fixed to one end of the slider 623. The other end of the spring 624 is fixedly connected to the support 625. The bottom end of the support 625 is fixedly provided on the support plate 2, so that when the sliding 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 support 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 stressed through the power component 63, the slider 623 will be pulled to move, and then return through the spring 624.

[0077] Among them, please refer to Figure 8 , the power component 63 includes a winding rod 631, a support 632 and a motor 633. Both ends of the winding rod 631 are rotatably installed on the support 632. The output shaft of the motor 633 is rotatably connected to the winding rod 631. The outside of the motor 633 is fixedly connected to the support plate 2. After the driving rope 61 slides into the positioning plate 12, it is fixedly connected to the surface of the winding rod 631. So that when it is necessary to horizontally displace the conveying pipe 411 to adjust the cooling area, the motor 633 can be used to rotate the winding rod 631, so that the winding rod 631 winds the driving rope 61, so that the driving rope 61 slides horizontally, thereby driving the conveying pipe 411 to move horizontally.

[0078] It should be noted that the materials related to heat exchange in this technical solution can all be made of common aluminum alloy materials, or can be composed of other heat exchange materials that meet the installation structural strength.

[0079] The control method of the present invention is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art, and the present invention is mainly used to protect mechanical devices, so the control method and wiring layout of the present invention will not be explained in detail.

[0080] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An aluminum-based heating film and liquid cooling plate highly integrated thermal management method, characterized in that, The method includes the following steps: S1. Select a flexible and highly thermally conductive aluminum-based material as the substrate of the heating film; S2. Prepare a conductive heating material, which includes carbon nanotubes or metal etched circuits, for preparing heating wires; S3. Select a suitable insulating material for encapsulating the above heating wires; S4. Prepare a liquid cooling tube plate; S5. Uniformly distribute the conductive heating material on the substrate insulating material, and use etching or die-cutting processes to prepare heating wires during the distribution process; S6. Encapsulate the heating film heating wires with an insulating material and press-fit them with an aluminum substrate to integrate an aluminum-based heating film; S7. Closely contact and fix the liquid cooling tube plate with the aluminum-based heating film; S8. Conduct electrical performance tests on the fabricated aluminum-based heating film, including resistance, power, and insulation withstand voltage test parameters; S9. Simulate the actual use environment and test the cooperative working performance of the aluminum-based heating film and the liquid cooling tube plate; 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 drive chamber (6). The upper surface of the liquid cooling panel (1) is used for fixing with 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 parallel to the length direction of the liquid cooling panel (1). The liquid cooling component (4) is slidably arranged on the heat collecting strip (3). The secondary heat exchange component (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 component for driving the displacement of the liquid cooling component (4) is arranged in the drive chamber (6).

2. A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate according to claim 1, characterized in that: The aluminum-based flexible and highly thermally conductive material includes 1-series or 3-series alloy aluminum plates, graphite films, or metal foils.

3. A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate according to claim 2, characterized in that: Two or more heat collecting strips (3) are arranged at intervals along the width direction of the liquid cooling panel (1). The heat collecting strip (3) is composed of heat exchange fins (31) that are parallel to each other. The top ends of the heat exchange fins (31) are vertically fixed to the liquid cooling panel (1). The liquid cooling component (4) includes a conveying component (41) that slides along the length direction of the heat collecting strip (3). The overall conveying component (41) is parallel to the width direction of the liquid cooling panel (1), and the number of the conveying components (41) is set to be two or more. Adjacent conveying components (41) are fixedly connected through a connecting chamber (42).

4. A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate according to claim 3, characterized in that: Side plates (11) are fixedly arranged at the left and right ends of the bottom surface of the liquid cooling panel (1). The conveying component (41) includes a conveying pipe (411) for conveying coolant inside, connecting pipes (412) fixedly arranged at the input and output ends of the conveying pipe (411), and a recess (413) integrally arranged on the conveying pipe (411). The upper surface of the conveying pipe (411) is in sliding contact with the liquid cooling panel (1). The upper surface of the recess (413) is in sliding contact with the heat exchange fins (31). Adjacent conveying pipes (411) are integrally connected through the connecting chamber (42) into a serpentine conveying structure, and the conveying pipe (411) is in a flat strip structure.

5. A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate according to claim 4, characterized in that: The pallet (2) is provided with heat exchange grooves (21). Synchronous pieces (414) are fixedly installed on the bottom surface of the concave part (413) at intervals. The secondary heat exchange member (5) includes a synchronous component (51) in transmission cooperation with the synchronous pieces (414), and a heat exchange component (52) arranged below the synchronous component (51). The synchronous component (51) and the synchronous component (51) are in transmission cooperation through a transmission component (53).

6. The highly integrated thermal management method of an aluminum-based heating film and a liquid cooling plate according to claim 5, characterized in that: The synchronous component (51) includes a first rotating shaft (511) with both ends rotatably connected to the heat exchange groove (21), a synchronous pulley (512) coaxially fixed on the first rotating shaft (511), and a transmission groove (513) formed on the surface of the synchronous pulley (512). The synchronous pulley (512) is engaged with the synchronous pieces (414) through the transmission groove (513). The heat exchange component (52) includes a second rotating shaft (521) with both ends rotatably arranged on the pallet (2), and fan blades (522) fixed on the outer side of the second rotating shaft (521) in a circumferential array. The transmission component (53) includes a first gear (531) and a second gear (532) coaxially fixed on the first rotating shaft (511) and the second rotating shaft (521) respectively. The first gear (531) and the second gear (532) are in synchronous transmission cooperation through a transmission belt (533).

7. A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate according to claim 6, characterized in that: The driving component includes a driving rope (61), return components (62) and a power component (63) fixed at both ends of the driving rope (61). A guide pulley (64) is fixedly installed on the outer side of the side plate (11). The outer wall of the driving rope (61) is in sliding contact with the guide pulley (64). A synchronous block (65) is fixedly installed on the outer wall of the concave part (413). The driving rope (61) is fixed inside the synchronous block (65).

8. A highly integrated thermal management method for an aluminum-based heating film and a liquid cooling plate according to claim 7, characterized in that: The return component (62) includes a guide seat (621) with the bottom end fixedly connected to the pallet (2), a guide hole (622) formed in the guide seat (621), a sliding block (623) sliding along the guide hole (622), and a spring (624) with one end fixedly connected to the sliding block (623). The other end of the spring (624) is fixedly connected to a bracket (625). The bottom end of the bracket (625) is fixedly installed on the pallet (2). After the driving rope (61) slides into the bracket (625), it is fixedly connected to the surface of the sliding block (623). A positioning plate (12) is fixedly installed on the outer side of the side plate (11). The power component (63) includes a winding rod (631), a support frame (632) and a motor (633). Both ends of the winding rod (631) are rotatably installed on the support frame (632). The output shaft of the motor (633) is rotatably connected to the winding rod (631). After the driving rope (61) slides into the positioning plate (12), it is fixed to the surface of the winding rod (631).

Citation Information

Patent Citations

  • Liquid cooling device and electronic equipment

    CN111194161A

  • Coated thermal management system and battery pack

    CN116207404A