Vacuum brazing structure of liquid cooling plate with micro-channel

Abstract

The invention provides a vacuum brazing structure of a liquid cooling plate with a micro-channel, and relates to the technical field of welding of the liquid cooling plate with a micro-channel body, the vacuum brazing structure comprises the micro-channel plate, positioning slots are formed in the micro-channel plate, wave brazing sheets are arranged in the positioning slots, brazing strips are arranged on the inner sides of the wave brazing sheets, and the brazing strips are arranged on the inner sides of the wave brazing sheets. Positioning open grooves are formed in the micro-channel plate, wave brazing sheets and brazing strips on the inner side are arranged in the grooves, the wave brazing sheets are accurately placed through the positioning open grooves, the position stability of the wave brazing sheets is guaranteed, a foundation is provided for subsequent welding, the brazing strips penetrate through the wave brazing sheets, the multiple wave brazing sheets are firmly connected, and the structural integrity is enhanced. All parts are tightly connected, the sealing performance and stability of the liquid cooling plate are improved, meanwhile, the wave brazing sheets are beneficial for increasing the contact area and improving the heat dissipation efficiency, reliable heat dissipation guarantee is provided for efficient operation of equipment, and the problem that welding is not uniform enough in the background technology can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding a liquid cooling plate with a micro-channel, and in particular to a vacuum brazing structure of a liquid cooling plate with a micro-channel. Background Art

[0002] The liquid cooling plate with a microfluidic body plays a key role in the high-performance heat dissipation system by using vacuum brazing technology. The microfluidic body design can effectively improve the flow efficiency of the coolant and increase the heat exchange area between the coolant and the heat source, thereby significantly improving the heat dissipation performance. The main advantage of this structure is that it can achieve efficient and uniform thermal management, avoid the formation of hot spots, and ensure that the electronic equipment remains stable during high-power operation. The vacuum brazing technology ensures the sealing and structural strength of the microfluidic body, so that the cooling plate can work reliably in high temperature and high pressure environments. In addition, vacuum brazing can also reduce the volume and weight of the cooling plate, making it adaptable to application scenarios with limited space. On the whole, the liquid cooling plate with a microfluidic body meets the needs of modern high-power electronic equipment for efficient heat dissipation solutions by optimizing heat dissipation performance and enhancing structural stability.

[0003] In actual work, the vacuum brazing structure of the liquid cooling plate in the prior art can basically meet the welding control requirements of the liquid cooling plate, but there are still the following two problems:

[0004] 1. The existing vacuum brazing structure of the liquid cooling plate has the problem that during the welding process, the brazing material will soften, which makes the equipment prone to welding position deviation. This not only affects the welding quality, but also may cause the heat dissipation performance of the liquid cooling plate to decrease, reduce the stability and reliability of the equipment, and increase the subsequent maintenance costs.

[0005] 2. The existing vacuum brazing structure of the liquid cooling plate has the problem of poor heat dissipation, which will cause the temperature of the equipment to be too high during operation, affecting the performance and stability of the equipment, which may shorten the life of electronic components and increase the risk of equipment failure. At the same time, it also limits the equipment's ability to continue operating under high-load working conditions.

[0006] The present application provides a vacuum brazing structure of a liquid cooling plate with microchannels to meet the needs. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings in the prior art and provide a vacuum brazing structure of a liquid cooling plate with a microchannel.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a vacuum brazing structure of a liquid cooling plate with a microchannel, comprising a microchannel plate, wherein a positioning groove is opened inside the microchannel plate, and a wavy brazing sheet is arranged in each of the positioning grooves, and a brazing rod is arranged inside the wavy brazing sheet.

[0009] As a preferred implementation, the brazing rod evenly penetrates the corrugated brazing sheets to connect the corrugated brazing sheets.

[0010] The technical effect of adopting the above technical scheme is: the brazing rod evenly penetrates the wave brazing sheet. Through this connection method, the wave brazing sheets are tightly combined together. In the vacuum brazing structure of the liquid cooling plate, the overall stability and reliability are enhanced, ensuring that the shape of the microchannel body is more regular, and the heat dissipation efficiency of the liquid cooling plate is improved. At the same time, the service life of the liquid cooling plate is also extended, meeting the needs of high-performance heat dissipation.

[0011] As a preferred embodiment, drill bit openings are evenly arranged on the top of the corrugated drill bit.

[0012] The technical effect of adopting the above technical scheme is that brazing plate openings are evenly arranged on the top of the wavy brazing plate, through which brazing powder can be conveniently placed. During the vacuum brazing process, the brazing powder can better fill the connecting parts and improve the quality and strength of the welding, which makes the vacuum brazing of the liquid cooling plate more efficient and reliable, and provides a guarantee for the good performance of the liquid cooling plate.

[0013] As a preferred implementation, drill columns are evenly arranged on the corrugated drill blade.

[0014] The technical effect of adopting the above technical solution is: the brazing columns are evenly arranged on the corrugated brazing sheet, which can effectively support the corrugated brazing sheet and enhance the structural stability. At the same time, the connection parts are fully filled during welding to improve the welding quality.

[0015] As a preferred implementation, a top drill piece is provided at the top of the drill column, and a supporting drill piece is provided at the bottom of the drill column.

[0016] The technical effect of adopting the above technical scheme is: a top drill piece is arranged on the top of the drill column, and a supporting drill piece is arranged on the bottom. The drill column can effectively support the wave drill piece to ensure the stability of the structure. During welding, the top drill piece, the drill column and the supporting drill piece work together to fully fill the connection part, improve the density and strength of the welding, and ensure the reliable performance of the liquid cooling plate.

[0017] As a preferred implementation manner, a welding sheet is provided at the bottom of the microfluidic plate, and a base plate is provided at the bottom of the welding sheet.

[0018] The technical effect of adopting the above technical solution is: a base plate is set at the bottom of the welding plate, and the two are closely combined to provide solid support for the entire structure, ensuring that the liquid cooling plate remains stable during use.

[0019] As a preferred embodiment, a positioning plate is provided on the outer side of the welding sheet away from the corrugated drill sheet.

[0020] The technical effect of adopting the above technical solution is: a positioning plate is set on the outside of the welding plate, and the position of the welding plate can be accurately fixed through the positioning plate during the assembly process, ensuring that the welding operation is more precise, improving the overall quality of the liquid cooling plate, and also providing strong guarantee for the stability of the vacuum brazing structure.

[0021] As a preferred embodiment, the outer side of the microfluidic plate is provided with integral grooves, and the inner side of the microfluidic plate is provided with a microfluidic body.

[0022] The technical effect of adopting the above technical scheme is: an integral groove is provided on the outside of the microfluidic plate, and a microfluidic body is arranged on the inside. The integral groove can provide space and convenience for the installation and connection of the liquid cooling plate, which is convenient for coordination with other components. The microfluidic body can make the cooling medium flow efficiently therein, enhance the heat dissipation effect, ensure that the equipment maintains a suitable temperature during operation, and improve the stability and reliability of the equipment.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are:

[0024] The present invention arranges a microchannel plate, a wavy brazing sheet, a brazing rod, a microchannel body and a positioning groove. In the vacuum brazing structure of the liquid cooling plate with the microchannel body, a positioning groove is opened inside the microchannel plate, and a wavy brazing sheet and an inner brazing rod are arranged in the groove. The wavy brazing sheet is accurately placed through the positioning groove to ensure its stable position, providing a basis for subsequent welding. The brazing rod passes through the wavy brazing sheet to firmly connect multiple wavy brazing sheets to enhance the integrity of the structure. This design enables the various components to be tightly connected during the vacuum brazing process, thereby improving the sealing and stability of the liquid cooling plate. At the same time, the wavy brazing sheet helps to increase the contact area, improve the heat dissipation efficiency, provide reliable heat dissipation guarantee for the efficient operation of the equipment, and can solve the problem of uneven welding mentioned in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a vacuum brazing structure of a liquid cooling plate with microchannels provided by the present invention;

[0026] Figure 2 A schematic diagram of the structure of a wave brazing sheet of a vacuum brazing structure of a liquid cooling plate with microchannels provided by the present invention;

[0027] Figure 3 This is an enlarged view of the structure at A of the vacuum brazing structure of the liquid cooling plate with microchannels provided by the present invention;

[0028] Figure 4 A schematic diagram of the brazing rod structure of the vacuum brazing structure of the liquid cooling plate with microchannels provided by the present invention;

[0029] Figure 5A schematic diagram of the microchannel plate structure of the vacuum brazing structure of the liquid cooling plate with microchannels provided by the present invention;

[0030] Figure 6 This is an enlarged view of the structure at position B of the vacuum brazing structure of the liquid cooling plate with microchannels provided by the present invention.

[0031] Legend:

[0032] 1. Bottom plate; 2. Welding plate; 3. Microfluidic plate; 4. Overall slot; 5. Positioning plate; 6. Wave drill piece; 7. Drilling piece opening; 8. Drilling rod; 9. Top drill piece; 10. Microfluidic body; 11. Positioning slot; 12. Drilling column; 13. Supporting drill piece. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0034] like Figure 1 - Figure 6 As shown, this embodiment provides a technical solution: a vacuum brazing structure of a liquid cooling plate with a microchannel, including a microchannel plate 3, wherein a positioning groove 11 is provided inside the microchannel plate 3, wherein a wave brazing sheet 6 is arranged inside the positioning groove 11, wherein a brazing bar 8 is arranged inside the wave brazing sheet 6, wherein in the vacuum brazing structure of a liquid cooling plate with a microchannel body 10, a positioning groove 11 is provided inside the microchannel plate 3, wherein the wave brazing sheet 6 and the brazing bar 8 inside the groove are arranged, wherein the wave brazing sheet 6 can be accurately placed through the positioning groove 11, thereby ensuring its stable position, which lays a solid foundation for subsequent welding operations, wherein the brazing bar 8 penetrates the microchannel plate 3, wherein the wave brazing sheet 6 and the brazing bar 8 inside the microchannel plate 3 are arranged in the positioning groove 1 ... The wave brazing sheet 6 is inserted to firmly connect multiple wave brazing sheets 6 together, which greatly enhances the integrity of the structure. This careful design plays an important role in the vacuum brazing process, allowing the components to be tightly connected, significantly improving the sealing and stability of the liquid cooling plate. At the same time, the unique design of the wave brazing sheet 6 helps to increase the contact area, thereby effectively improving the heat dissipation efficiency and providing reliable heat dissipation guarantee for the efficient operation of the equipment. In this way, the problem of uneven welding mentioned in the background technology can be well solved, ensuring that the performance of the liquid cooling plate is more stable and reliable, and meeting the heat dissipation needs under various complex working conditions.

[0035] Further, such as Figure 1 - Figure 6As shown: the brazing rod 8 evenly penetrates the wavy brazing sheet 6 to connect the wavy brazing sheet 6. By the connection method of the brazing rod 8 penetrating the wavy brazing sheet 6, each wavy brazing sheet 6 is tightly combined. In the vacuum brazing structure of the liquid cooling plate, this greatly enhances the overall stability and reliability. At the same time, it ensures that the shape of the microchannel body 10 is more regular, so that the cooling medium can flow more smoothly, improves the heat dissipation efficiency of the liquid cooling plate, and extends the service life of the liquid cooling plate, meets the high-performance heat dissipation requirements, and ensures the stable operation of the equipment.

[0036] In order to solve the problem of poor welding effect, such as Figure 6 As shown: In the present embodiment, the top of the wave brazing plate 6 is evenly provided with brazing plate openings 7, and the top of the wave brazing plate 6 is evenly distributed with brazing plate openings 7. These openings play an important role. Brazing powder can be put into them more conveniently. During the vacuum brazing process, the brazing powder can fully fill the connection parts, significantly improving the quality and strength of the welding. This careful design makes the vacuum brazing of the liquid cooling plate more efficient and reliable, provides a strong guarantee for the good performance of the liquid cooling plate, and ensures its stable operation in various complex working environments.

[0037] In order to solve the problem of softening of brazing sheet during welding, Figure 6 As shown: In this solution, a top drill piece 9 is provided at the top of the drill column 12, and a supporting drill piece 13 is provided at the bottom of the drill column 12. The top of the drill column 12 is provided with a top drill piece 9, and the bottom is provided with a supporting drill piece 13. The drill column 12 plays an effective supporting role for the wave drill piece 6, which effectively ensures the stability of the structure. During the welding process, the top drill piece 9, the drill column 12 and the supporting drill piece 13 work together to fully fill the connection part, which not only improves the density and strength of the welding, but also provides a solid guarantee for the reliable performance of the liquid cooling plate, so that it can better adapt to various working environments.

[0038] In order to solve the problem that equipment welding cannot support, such as Figure 1 As shown: In this solution, a welding sheet 2 is provided at the bottom of the microfluidic plate 3, and a base plate 1 is provided at the bottom of the welding sheet 2. The base plate 1 is provided at the bottom of the welding sheet 2. The two are tightly combined to provide a solid support for the entire structure, ensuring that the liquid cooling plate remains stable during use.

[0039] In order to solve the problem that the temperature of the equipment cannot be reduced during welding, such as Figure 6As shown: In this scheme, the outer side of the microfluidic plate 3 is provided with an integral groove 4, and the inner side of the microfluidic plate 3 is provided with a microfluidic body 10. The groove on the outer side of the microfluidic plate 3 provides space for the installation and connection of the liquid cooling plate, which is convenient for coordination with other components. The inner microfluidic body 10 enables the cooling medium to flow efficiently, enhances the heat dissipation effect, ensures that the equipment maintains a suitable temperature during operation, and improves the stability and reliability of the equipment. This design brings convenience to the practical application of the liquid cooling plate, makes the equipment heat dissipation more efficient, and runs more stably, and has important value in the fields of electronic equipment, new energy, etc.

[0040] Working principle:

[0041] like Figure 1 - Figure 6 As shown:

[0042] When in use: The vacuum brazing structure of this liquid cooling plate is composed of multiple parts, each of which has a unique and indispensable role. The bottom plate 1 is tightly combined with the welding plate 2 to form the basic support of the entire structure. The bottom plate 1 can withstand forces from all directions during the use of the liquid cooling plate to ensure that the liquid cooling plate always remains stable. This stability is essential for the normal operation of the equipment. It can prevent the liquid cooling plate from deformation or damage caused by external interference, thereby ensuring the continuous stability of the heat dissipation effect. The positioning plate 5 on the outside of the welding plate 2 plays a key role in the assembly process. The positioning plate 5 can accurately fix the position of the welding plate 2, making the welding operation more accurate. Accurate welding has a decisive influence on the quality of the liquid cooling plate. On the one hand, It can ensure the firmness of the welding parts, reduce cracks or looseness that may occur due to inaccurate welding, thereby improving the overall strength and reliability of the liquid cooling plate. On the other hand, precise welding also helps to improve the sealing of the liquid cooling plate, prevent leakage of the cooling medium, and further ensure the stable operation of the heat dissipation system. The microfluidic plate 3 is one of the core components of the liquid cooling plate. The integral groove 4 opened on the outside thereof provides great convenience for the installation and connection of the liquid cooling plate. In practical applications, the liquid cooling plate can be easily matched with other components through the integral groove 4, which greatly improves the installation efficiency. At the same time, the microfluidic body 10 arranged on the inside is the key to the liquid cooling plate to achieve efficient heat dissipation. The microfluidic body 10 can make the cooling medium flow efficiently therein, greatly The contact area between the cooling medium and the liquid cooling plate is increased. This increased contact area allows the heat to be taken away by the cooling medium more quickly, thereby effectively reducing the temperature of the equipment and improving the stability and reliability of the equipment. The wave brazing sheet 6 plays an important role in the vacuum brazing structure of the liquid cooling plate. The wave brazing sheet 6 is accurately placed by positioning the groove 11 to ensure the stability of its position, which provides a good foundation for subsequent welding work and makes the welding process smoother and more reliable. The wave shape design not only increases the contact area and improves the heat dissipation efficiency, but also guides the flow of the cooling medium to make it more evenly distributed on the liquid cooling plate, further improving the uniformity of heat dissipation. In addition, the brazing sheet openings 7 evenly arranged on the top of the wave brazing sheet 6 are for placing brazing powder It provides convenience. During the vacuum brazing process, the brazing powder can better fill the connection parts and improve the quality and strength of the welding. The brazing rod 8 and the brazing column 12 play an important role in the structural stability of the liquid cooling plate. The brazing rod 8 runs through the wave brazing sheet 6, and firmly connects multiple wave brazing sheets 6 together, thereby enhancing the integrity of the structure. This connection method enables each wave brazing sheet 6 to bear force together in the vacuum brazing structure of the liquid cooling plate, thereby improving the stability and reliability of the structure. The top brazing sheet 9 at the top of the brazing column 12 and the supporting brazing sheet 13 at the bottom can fully fill the connection parts during welding, thereby improving the density and strength of the welding. This further ensures the reliable performance of the liquid cooling plate, enabling it to operate stably in various complex working environments. In summary,The vacuum brazing structure of the liquid cooling plate with the microfluidic body 10 achieves a variety of excellent effects through the synergistic effect of various parts. In terms of heat dissipation, the design of the microfluidic body 10 and the wave brazing sheet 6 greatly improves the heat dissipation efficiency, ensures that the equipment can maintain a suitable temperature during operation, and improves the stability and reliability of the equipment. In terms of structural stability, the design of the positioning plate 5, the brazing rod 8, the brazing column 12 and other components ensures the welding accuracy and the integrity of the structure, which provides a guarantee for the long-term stable operation of the liquid cooling plate. At the same time, the integral groove 4 on the outer side of the microfluidic plate 3 provides convenience for installation and connection, and improves the practicality of the liquid cooling plate. This vacuum brazing structure of the liquid cooling plate has broad application prospects in the fields of electronic equipment, new energy vehicles, etc., and provides strong technical support for promoting the development of these fields.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vacuum brazing structure of a liquid cooling plate with a microchannel, comprising a microchannel plate (3), characterized in that: The microchannel plate (3) is provided with a positioning groove (11) inside, a wave brazing sheet (6) is arranged inside the positioning groove (11), and a brazing bar (8) is arranged inside the wave brazing sheet (6).

2. The vacuum brazing structure of the liquid cooling plate with microchannel according to claim 1, characterized in that: The brazing rod (8) evenly penetrates the corrugated brazing pieces (6) to connect the corrugated brazing pieces (6).

3. The vacuum brazing structure of the liquid cooling plate with microchannels according to claim 1, characterized in that: The top of the corrugated drill blade (6) is evenly provided with drill blade openings (7).

4. The vacuum brazing structure of the liquid cooling plate with microchannels according to claim 1, characterized in that: The corrugated drill blade (6) is evenly provided with drill columns (12).

5. The vacuum brazing structure of the liquid cooling plate with microchannels according to claim 4, characterized in that: A top drill piece (9) is arranged at the top of the drill column (12), and a supporting drill piece (13) is arranged at the bottom of the drill column (12).

6. The vacuum brazing structure of the liquid cooling plate with microchannels according to claim 1, characterized in that: A welding sheet (2) is arranged at the bottom of the microfluidic plate (3), and a base plate (1) is arranged at the bottom of the welding sheet (2).

7. The vacuum brazing structure of the liquid cooling plate with microchannels according to claim 6, characterized in that: A positioning plate (5) is provided on the outer side of the welding sheet (2) away from the corrugated brazing sheet (6).

8. The vacuum brazing structure of the liquid cooling plate with microchannels according to claim 1, characterized in that: The outer side of the microfluidic plate (3) is provided with an integral groove (4), and the inner side of the microfluidic plate (3) is provided with a microfluidic body (10).

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