Light durable liquid cooling plate based on aluminum foil material and manufacturing process thereof

Abstract

The invention discloses a light durable liquid cooling plate based on an aluminum foil material and a manufacturing process thereof. The manufacturing process comprises the steps of preparing a material sheet, forming a runner through cold stamping, folding and sealing and the like. The liquid cooling plate is made of a three-layer composite material composed of polypropylene (PP), aluminum foil and nylon, and compared with a traditional pure metal liquid cooling plate, the liquid cooling plate has the advantages of being soft in attachment, good in surface deformation and free of being coated with heat dissipation glue, and the heat dissipation effect is remarkably optimized. The PP layer is resistant to bacteria and corrosion, so that the service life of the liquid cooling plate is prolonged to 10-15 years, and the problems that a traditional metal plate is prone to corrosion, liquid leakage and biological growth are solved. The design is light in weight, low in cost, particularly suitable for mobile electronic equipment such as aircrafts and electric automobiles, high in automation degree of the production process and suitable for batch manufacturing. Due to the ductility and convenient sealing characteristic of the composite material, the liquid cooling plate is more stable in structure and reliable in packaging, and the modern requirements for high efficiency, light weight, durability and heat dissipation are fully met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic appliances and lithium battery thermal management, in particular to a lightweight and durable liquid cooling plate based on aluminum foil material and a manufacturing process thereof. BACKGROUND

[0002] Liquid cooling technology is a technology that uses liquid flow to take away heat and achieve efficient heat dissipation for high heat density electronic equipment. It is widely used in data center servers, power batteries, aircraft and electric vehicles, etc. that require efficient heat dissipation. At present, as the core component of the liquid cooling system, the liquid cooling plate is usually made of metal materials (such as copper and aluminum), and its structure is designed with internal flow channels. The liquid absorbs heat through the flow channels and is discharged to achieve the effect of heat dissipation. However, the traditional metal liquid cooling plate has many problems in practical application, for example:

[0003] 1. The metal liquid cooling plate is prone to electrochemical corrosion during long-term use, which may cause corrosion of the inner wall of the flow channel, change of flow resistance, liquid leakage, and even biological growth, which seriously affects the normal operation and service life of the equipment. In order to deal with the corrosion problem, the existing technology often needs to frequently replace the liquid cooling plate or regularly clean and replace the cooling liquid, which usually needs to be maintained once every 3-5 years, thereby increasing the maintenance cost and affecting the continuous operation of the equipment.

[0004] 2. The rigid structure of the metal liquid cooling plate makes it difficult to adhere to the surface of the cooled object, and usually needs to be coated with thermal conductive glue for thermal interface connection. However, the thermal resistance of the thermal conductive glue increases the thermal resistance of the overall heat dissipation path, which affects the heat dissipation efficiency. At the same time, the metal material itself is heavy, which is not suitable for mobile electronic equipment and small-sized heat dissipation requirements, such as aircraft and electric vehicles, etc., which limits the application scenarios of the liquid cooling plate.

[0005] In order to solve the above problems, the existing technology attempts to improve the metal material or the surface coating to improve the corrosion resistance, but such improvements are often costly and have limited effect. Other attempts include optimizing the welding process to improve the sealing performance of the flow channel, but the process is complex and has low automation, which makes it difficult to achieve large-scale production.

[0006] Therefore, how to provide a liquid cooling plate design with good adhesion, corrosion resistance, light weight and suitable for automatic production has become a technical problem to be solved by the present application. SUMMARY

[0007] The technical problem solved by the present application is to provide a lightweight and durable liquid cooling plate based on aluminum foil material and a manufacturing process thereof to solve the problems of easy corrosion, low heat dissipation efficiency, heavy weight and high manufacturing cost of the existing liquid cooling plate as described in the background.

[0008] To solve the above technical problems, the technical solutions adopted by the present application are as follows:

[0009] A light and durable liquid cooling plate based on aluminum foil material, comprising an aluminum foil material body, the aluminum foil material body comprising a first aluminum foil material sheet and a second aluminum foil material sheet;

[0010] A flow channel groove is provided on the first aluminum foil material sheet and / or the second aluminum foil material sheet;

[0011] The first aluminum foil material sheet and the second aluminum foil material sheet are hot-pressed into an integrated structure, so that the flow channel groove forms a flow channel recess;

[0012] The flow channel recess comprises a hole one end and a hole other end;

[0013] The hole one end and the hole other end of the flow channel recess are respectively sealed and connected to a pipe joint, or a pipe body matching the flow channel recess is embedded in the flow channel recess, and the two ends of the pipe body form pipe joints at the hole one end and the hole other end of the flow channel recess.

[0014] As a further scheme of the present application, the first aluminum foil material sheet and the second aluminum foil material sheet of the aluminum foil material body are respectively composed of a three-layer composite structure, which comprises an inner layer of polypropylene, an intermediate layer of aluminum foil and an outer layer of nylon. As a further scheme of the present application, the flow channel groove is formed by a cold stamping process, which uses a forming die to extrude a predetermined flow channel shape on the first aluminum foil material sheet and / or the second aluminum foil material sheet. The flow channel shape can be M-shaped, S-shaped, Z-shaped or serpentine-shaped to adapt to different cooling requirements.

[0015] As a further scheme of the present application, the pipe joint is a pagoda-shaped structure, the bottom of the pagoda-shaped structure is provided with a skirt, the skirt is hot-sealed and joined with the hole one end and the hole other end of the flow channel recess, and a plurality of annular protrusions are provided on the pagoda-shaped structure body to increase the packaging strength and sealing performance between the pipe joint and the aluminum foil material body.

[0016] As a further scheme of the present application, the overall structure of the aluminum foil material body provides a heat conduction path by the aluminum foil layer, and the outer nylon layer and the inner polypropylene layer cover the aluminum foil layer to form a composite material with good flexibility and sealing performance.

[0017] As a further scheme of the present application, the aluminum foil material body is mass-produced by a cold stamping, folding and heat sealing process.

[0018] A manufacturing process of a light and durable liquid cooling plate based on aluminum foil material, comprising the following steps:

[0019] Step 1, preparing a material sheet: preparing an aluminum-plastic film material by a composite process;

[0020] Step 2, cold stamping a flow channel: using a cold stamping process to process the material sheet into a predetermined flow channel shape;

[0021] Step 3, folding and sealing: fold the formed material sheet in half and seal the runner through a heating sealing process, while leaving the inlet and outlet of the cooling liquid.

[0022] As a further scheme of the present application, the preparation of the material sheet in step 1 includes laminating multiple layers of materials of different functions to form an integrated composite material, specifically including:

[0023] S1, glueing the polypropylene layer, the intermediate aluminum foil layer and the nylon layer in sequence;

[0024] S2, sequentially stacking the glued layers of materials through a lamination process;

[0025] S3, under the conditions of applying pressure and temperature, pressing the layers of materials into an integrated material sheet;

[0026] S4, cutting and shaping the material sheet to meet the predetermined size requirements.

[0027] As a further scheme of the present application, the cold stamping process of forming the runner in step 2 includes using a fixed die and a bottom die for stamping, the shapes of the fixed die and the bottom die are designed according to the cooling requirements, so that the runner groove has precise size and shape to ensure that the fluid passage of the runner is consistent and the heat dissipation effect is optimal.

[0028] As a further scheme of the present application, the heating sealing process in step 3 adopts a multi-stage heat sealing method, including preheating, hot pressing and cooling stages, by controlling the sealing temperature, pressure and time to ensure the sealing strength and durability of the sealing part, and effectively prevent the leakage of the cooling liquid.

[0029] Compared with the prior art, the present application has the following advantages:

[0030] 1. Compared with the liquid cooling plate of metal material in the prior art, the liquid cooling plate of the present application uses aluminum foil material, which is soft and has excellent surface deformation ability, can be closely attached to the cooled device, and does not need to use thermal paste. This adhesion greatly reduces the interfacial thermal resistance compared to traditional pure metal liquid cooling plates, improves the overall heat dissipation effect, and makes the heat dissipation efficiency higher and more stable.

[0031] 2. The traditional metal liquid cooling plate is easily affected by electric corrosion, and after long-term use, problems such as corrosion, liquid leakage, flow resistance change, biological growth, etc. may occur, and it usually needs to be replaced every 3-5 years, accompanied by a cumbersome cleaning process. The polypropylene (PP) layer in the present application has antibacterial and corrosion-resistant properties, with a significantly extended service life of 10-15 years, effectively avoiding frequent maintenance and replacement, and significantly improving the convenience and reliability of use.

[0032] 3、The composite material design of the present application greatly reduces the overall weight, especially suitable for mobile electronic products such as power batteries, aircraft, electric vehicles, etc. and micro heat dissipation scenarios. Lightweight materials not only reduce the load of the device, but also improve the endurance and performance of the mobile device.

[0033] 4、The process of the present application simplifies the production process of the liquid cooling plate, through cold stamping, folding and heat sealing processes, with high automation, without the need for complex metal welding and laser welding, greatly reducing the manufacturing cost. In addition, these automated processes are easy to mass-produce, further improving production efficiency and product consistency.

[0034] 5、The nylon layer in the composite material has excellent ductility, while the polypropylene (PP) layer exhibits good sealing performance during the sealing process, ensuring the overall sealing and strength of the flow channel. This material combination not only enhances the overall structural performance of the liquid cooling plate, but also makes the sealing process more convenient and reliable.

[0035] Additional aspects and advantages of the present application will be partially given in the following description, some of which will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0037] Figure 1 The structural schematic diagram of the present application.

[0038] Figure 2 The perspective schematic diagram of the flow channel recess of the present application.

[0039] Figure 3 The schematic diagram of the present application using pipe body and pipe joint structure.

[0040] The reference signs and names in the drawings are as follows:

[0041] Aluminum foil material body 1, first aluminum foil material sheet 2, second aluminum foil material sheet 3, flow channel recess 4, flow channel recess 5, one end of hole 6, the other end of hole 7, pipe joint 8 and pipe body 9. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0043] Please refer to Figure 1 In the embodiments of the present application, a light and durable liquid cooling plate based on aluminum foil material includes an aluminum foil material body 1, the aluminum foil material body 1 includes a first aluminum foil material sheet 2 and a second aluminum foil material sheet 3; a flow channel groove 4 is arranged on the first aluminum foil material sheet 2 and / or the second aluminum foil material sheet 3; the first aluminum foil material sheet 2 and the second aluminum foil material sheet 3 are hot-pressed into an integrated structure, so that the flow channel groove 4 forms a flow channel recess 5; the flow channel recess 5 includes a hole one end 6 and a hole other end 7, and the hole one end 6 and the hole other end 7 of the flow channel recess 5 are respectively sealed and connected to pipe joints, so as to connect the inlet and outlet of the cooling liquid, all of which belong to the extension embodiments known by those skilled in the art, and a pipe body 9 with a certain hardness matched with the flow channel recess 5 can be embedded in the flow channel recess 5, so as to make the flow channel recess not easy to deform, at this time, the two ends of the pipe body 9 can be used as joint parts for pipe connection or respectively connected to pipe joints 8 for connection, all of which belong to the extension embodiments known by those skilled in the art; the first aluminum foil material sheet 2 and the second aluminum foil material sheet 3 of the aluminum foil material body 1 are respectively composed of a three-layer composite structure, which includes an inner polypropylene (PP) layer, an intermediate aluminum foil layer and an outer nylon layer in sequence; the polypropylene layer has good sealing performance, the aluminum foil layer provides heat conduction function, and the nylon layer has ductility.

[0044] The flow channel groove 4 is formed by cold stamping process, which extrudes a predetermined flow channel shape on the first aluminum foil material sheet 2 and / or the second aluminum foil material sheet 3 by using a forming die, and the flow channel shape can be M-shaped, S-shaped, Z-shaped or serpentine-shaped to adapt to different cooling requirements. The pipe joint is a pagoda-shaped structure, the bottom of the pagoda-shaped structure is provided with a skirt, the skirt is heat-sealed and joined with the hole one end 6 and the hole other end 7 of the flow channel recess 5, and a plurality of annular protrusions are arranged on the body of the pagoda-shaped structure to increase the packaging strength and sealing performance between the pipe joint and the aluminum foil material body 1. The overall structure of the aluminum foil material body 1 provides a heat conduction path by the aluminum foil layer, and the outer nylon layer and the inner polypropylene layer cover the aluminum foil layer to form a composite material with good flexibility and sealing performance. The aluminum foil material body 1 is mass-produced by cold stamping, folding and heat sealing process, the process does not involve welding, is suitable for efficient automatic production, can manufacture liquid cooling plates of various specifications and sizes, and meets the heat dissipation requirements of different equipment.

[0045] A manufacturing process of a light and durable liquid cooling plate based on aluminum foil material includes the following steps:

[0046] Step 1, preparation of material sheet: aluminum plastic film material is prepared through a composite process;

[0047] Step 2, cold stamping forming flow channel: the material sheet is processed into a predetermined flow channel shape by cold stamping process;

[0048] Step 3, folding and sealing: the formed material sheet is folded and sealed by heating sealing process, while the inlet and outlet of the cooling liquid are reserved.

[0049] The preparation of the material sheet in step 1 includes laminating multiple layers of materials with different functions to form a whole composite material, which specifically includes:

[0050] S1, the polypropylene (PP) layer, the intermediate aluminum foil layer and the nylon layer are successively coated with glue;

[0051] S2, the coated layers of materials are successively stacked by laminating process;

[0052] S3, under the conditions of applying pressure and temperature, the layers of materials are pressed into a whole material sheet;

[0053] S4, the material sheet is cut and shaped to meet the predetermined size requirements.

[0054] The cold stamping forming flow channel process in step 2 includes using a die and a bottom die for stamping, and the shape of the die and the bottom die is designed according to the cooling requirements, so that the flow channel groove 4 has precise size and shape to ensure that the flow channel is consistent and has the best heat dissipation effect. The heating sealing process in step 3 adopts a multi-stage heat sealing method, including preheating, hot pressing and cooling stages, by controlling the sealing temperature, pressure and time to ensure the sealing strength and durability of the sealing part, and effectively prevent the leakage of cooling liquid.

[0055] Example 1:

[0056] In the power battery cooling system, in order to ensure that the battery pack maintains stable working temperature when high power output, the traditional metal liquid cooling plate is usually used for thermal management. However, the traditional metal liquid cooling plate is easily subject to electrochemical corrosion during long-term use, and the inner wall of the flow channel is gradually corroded, leading to liquid leakage, flow resistance change, and even causing mold and biological growth. In addition, the metal liquid cooling plate is rigid and cannot be closely attached to the surface of the battery module, so it needs to be coated with thermal conductive glue for thermal interface connection, which increases the thermal resistance and reduces the overall heat dissipation effect. At the same time, due to the relatively large weight of the metal material itself, these liquid cooling plates are not suitable for mobile devices such as electric vehicles and aircrafts with strict lightweight requirements, limiting their application.

[0057] To solve the above problems, the present embodiment adopts a lightweight and durable liquid cooling plate based on aluminum foil material and applies it to the power battery cooling system of electric vehicles. The liquid cooling plate is composed of three layers of composite materials, including a polypropylene (PP) layer, an intermediate aluminum foil layer, and an outer nylon layer. The flow channel is formed by cold stamping process, and the integrated flow channel concave hole 5 structure is formed by folding and heat sealing, which meets the cooling needs of the power battery module.

[0058] In practical applications, the liquid cooling plate is arranged between the battery pack modules of the electric vehicle and connected to the cooling liquid circulation system through the reserved cooling liquid inlet and outlet. The cooling liquid flows through the flow channel concave hole 5 in the liquid cooling plate during circulation, quickly absorbs the heat released by the battery module and carries it away, achieving efficient heat dissipation. Since the liquid cooling plate of the present invention uses composite materials, the overall structure is relatively soft and can be closely attached to the surface of the battery module. During the attachment process, no thermal conductive adhesive is needed, which greatly reduces the thermal interface resistance and significantly improves the heat dissipation efficiency.

[0059] Through the corrosion resistance of the polypropylene layer, the liquid cooling plate will not produce corrosion phenomenon under the long-term circulation of the cooling liquid, avoiding the leakage and flow resistance change problem caused by electrochemical corrosion of traditional metal liquid cooling plate. In addition, the ductility of the nylon layer ensures that the liquid cooling plate can still maintain sealing performance under dynamic thermal expansion and contraction working conditions, and will not affect the normal work of the flow channel due to deformation. The service life is extended from 3-5 years to 10-15 years compared with traditional metal liquid cooling plate, reducing the maintenance frequency and replacement cost.

[0060] Notably, the lightweight characteristics of the composite material greatly reduce the total weight of the liquid cooling plate, reducing the weight by about 30%-50% compared to traditional metal liquid cooling plate, which is particularly important for electric vehicles that need to control the weight of the vehicle body. This lightweight design not only helps to improve the range of the whole vehicle, but also significantly improves the power performance of the vehicle. In addition, the manufacturing process of the liquid cooling plate is highly automated, combining cold stamping, folding and heat sealing processes to achieve efficient mass production, greatly reducing production costs.

[0061] The application of the present embodiment proves the significant technical progress of the liquid cooling plate based on aluminum foil material in the actual power battery cooling scene: not only improves the cooling effect and system reliability, but also shows unique advantages in lightweight and low-cost manufacturing, solving multiple key pain points in the prior art. Through this technical solution, the thermal management level of mobile electronic devices such as electric vehicles has been greatly improved, effectively prolonging the service life of the battery pack and the overall system.

[0062] Embodiment 2:

[0063] In the heat dissipation management of data center servers, with the continuous growth of computing power, the power density of single cabinet has significantly increased, and traditional air cooling has been unable to meet the needs of high heat density environments. Liquid cooling technology has become a key means to solve this problem, but the commonly used copper or aluminum liquid cooling plates have various problems in use, such as easy corrosion, high cost, heavy weight, and unsuitable for installation and maintenance in complex internal space of servers.

[0064] The embodiment provides a liquid cooling plate based on aluminum foil material and applies it to a liquid cooling heat dissipation module for server memory sticks. The liquid cooling plate is composed of three layers of composite structure, including inner layer polypropylene (PP), middle layer aluminum foil and outer layer nylon, and is processed into a liquid cooling plate with a specific flow channel shape by cold stamping forming technology. The formed liquid cooling plate is folded and sealed by heating to form an integrated closed flow channel structure, and the inlet and outlet of the flow channel are connected with the lotus mouth for matching with the liquid cooling system of the server.

[0065] In the actual application of server memory sticks, the liquid cooling plate is installed on the heat source area of the memory stick through a support, and the cooling liquid enters the flow channel through the lotus mouth and circulates along the flow channel on the surface of the memory stick. Since the composite material liquid cooling plate is softer and has better surface deformation ability than the traditional metal liquid cooling plate, the liquid cooling plate can tightly adhere to the surface of the memory stick to achieve efficient heat exchange. In contrast, the traditional metal liquid cooling plate needs to be coated with additional heat dissipation glue to ensure thermal interface bonding, while the liquid cooling plate in the embodiment does not need to use heat dissipation glue, simplifying the installation process and improving the heat dissipation efficiency.

[0066] The corrosion resistance of the inner layer PP enables the liquid cooling plate to effectively resist corrosion and microbial growth of the cooling liquid during long-term use, significantly prolonging the service life and avoiding the annoyance of frequent replacement of cooling liquid and cleaning of the flow channel of the traditional metal liquid cooling plate. At the same time, the ductility of the outer layer nylon material ensures that the liquid cooling plate can maintain good sealing and structural stability under various temperatures and mechanical stresses.

[0067] Through the embodiment, the composite material liquid cooling plate not only reduces the overall weight of the server heat dissipation module and improves the convenience of installation, but also significantly reduces the manufacturing and maintenance costs of the heat dissipation module. In addition, the cold stamping and heat sealing process of the liquid cooling plate is highly adaptable to automated production and can achieve large-scale and high-consistency manufacturing, which is particularly important in data center construction and expansion.

[0068] The embodiment proves that the use of liquid cooling plates based on aluminum foil material instead of traditional metal liquid cooling plates can significantly improve the cooling efficiency and reduce the frequency of equipment maintenance in the heat dissipation management of data center servers, and has the advantages of lightweight, flexibility and durability in the manufacturing and application process, providing a more efficient and stable heat dissipation solution for high-density computing devices such as servers.

[0069] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "setting", "connecting", "fixing", "screwing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise clearly limited, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0070] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A lightweight and durable liquid cooling plate based on aluminum foil material, characterized in that: comprising an aluminum foil material body, the aluminum foil material body comprising a first aluminum foil material sheet and a second aluminum foil material sheet; a flow channel groove is provided on the first aluminum foil material sheet and / or the second aluminum foil material sheet; the first aluminum foil material sheet and the second aluminum foil material sheet are hot-pressed into an integrated structure, so that the flow channel groove forms a flow channel hole; the flow channel hole comprises a hole one end and a hole other end; the hole one end and the hole other end of the flow channel hole are respectively sealed and connected with pipe joints, or a pipe body matched with the flow channel hole is embedded in the flow channel hole, and the two ends of the pipe body form pipe joints at the hole one end and the hole other end of the flow channel hole respectively.

2. The lightweight and durable liquid cooling plate based on aluminum foil material according to claim 1, characterized in that, the first aluminum foil material sheet and the second aluminum foil material sheet of the aluminum foil material body are respectively composed of a three-layer composite structure, which comprises an inner polypropylene layer, an intermediate aluminum foil layer and an outer nylon layer in sequence.

3. The lightweight and durable liquid cold plate based on aluminum foil material according to claim 1, characterized in that, the flow channel groove is formed by a cold stamping process, which uses a forming die to extrude a predetermined flow channel shape on the first aluminum foil material sheet and / or the second aluminum foil material sheet, and the flow channel shape can be M-shaped, S-shaped, Z-shaped or serpentine-shaped to adapt to different cooling requirements.

4. The lightweight and durable liquid cold plate based on aluminum foil material according to claim 1, characterized in that, the pipe joint is a pagoda-shaped structure, the bottom of the pagoda-shaped structure is provided with a skirt, the skirt is hot-sealed and joined with the hole one end and the hole other end of the flow channel hole, and a plurality of annular protrusions are provided on the body of the pagoda-shaped structure to increase the packaging strength and sealing performance between the pipe joint and the aluminum foil material body.

5. The lightweight and durable liquid cold plate based on aluminum foil material according to claim 1, characterized in that, the overall structure of the aluminum foil material body provides a heat conduction path by the aluminum foil layer, and the outer nylon layer and the inner polypropylene layer cover the aluminum foil layer to form a composite material with good flexibility and sealing performance.

6. The lightweight and durable liquid cold plate based on aluminum foil material according to claim 1, characterized in that, the aluminum foil material body is mass-produced by cold stamping, folding and heat sealing processes.

7. A manufacturing process of a lightweight and durable liquid cooling plate based on aluminum foil material, characterized by, comprising the following steps: step 1, preparing a material sheet: preparing an aluminum-plastic film material by a composite process; step 2, cold stamping to form a flow channel: using a cold stamping process to process the material sheet into a predetermined flow channel shape; step 3, folding and sealing: folding the formed material sheet and sealing the flow channel by a heat sealing process, while reserving the inlet and outlet of the cooling liquid.

8. The manufacturing process of a lightweight and durable liquid cold plate based on aluminum foil material according to claim 1, wherein, the preparation of the material sheet in step 1 includes laminating a plurality of material layers with different functions to form an overall composite material, specifically including: S1, sequentially gluing the polypropylene layer, the intermediate aluminum foil layer and the nylon layer; S2, sequentially stacking the glued layers of material by a lamination process; S3, under the conditions of applying pressure and temperature, pressing the layers of material into an integral material sheet; S4, cutting and shaping the material sheet to meet the predetermined size requirements.

9. The manufacturing process of a lightweight and durable liquid cold plate based on aluminum foil material according to claim 1, wherein, the cold stamping process to form a flow channel in step 2 includes using a die and a bottom die for stamping, the shape of the die and the bottom die is designed according to the cooling requirements, so that the flow channel groove has accurate size and shape to ensure that the flow channel is consistent and has the best heat dissipation effect.

10. The manufacturing process of a lightweight and durable liquid cold plate based on aluminum foil material according to claim 1, wherein, the heat sealing process in step 3 adopts a multi-stage heat sealing method, including preheating, hot pressing and cooling stages, by controlling the sealing temperature, pressure and time to ensure the sealing strength and durability of the sealing part, and effectively prevent the leakage of the cooling liquid.

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