Welding structure of water-cooling copper bar

Abstract

The utility model belongs to the technical field of water-cooling copper bars, and particularly relates to a welding structure of a water-cooling copper bar, the water-cooling copper bar comprises a copper plate and copper pipes, a plurality of copper pipes are arrayed on the copper plate, and the welding structure is arranged at the joint of the copper pipes and the copper plate. A user firstly smears solder paste on the surface of the contact layer, then the copper pipe is placed on the copper plate and pressed tightly, and it is ensured that the solder paste is evenly distributed on the contact face of the copper pipe and the copper plate. Next, the solder paste is heated to be in a molten state, a tin soldering layer is formed after the solder paste is cooled, and connection of the copper pipe and the copper plate is preliminarily fixed; and then secondary welding is carried out, the welding flux is placed around the contact surface of the copper pipe and the copper plate, the welding flux is heated until the welding flux is molten and fills the gap, and a firm welding point is formed after cooling, so that compared with existing direct welding, the structure can effectively reduce the heat influence in the welding process and reduce the deformation of the copper bar.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water -cooled copper row technical field, and specifically relates to a kind of welding structure of water -cooled copper row. BACKGROUND

[0002] Water-cooled copper row is a kind of vital heat dissipation assembly, and is widely used in various electronic equipment. It uses water cooling technology to quickly absorb and conduct the large amount of heat generated by electronic equipment during operation through efficient heat conduction mechanism. This heat dissipation method not only effectively reduces the temperature inside the equipment to prevent overheating, but also ensures that the electronic equipment remains stable and efficient under long working conditions. In this way, water-cooled copper row not only ensures the normal operation of electronic equipment, but also significantly prolongs its service life, providing users with more reliable and durable use experience.

[0003] In the prior art, water-cooled copper row is usually welded and assembled by using a butt welding technique to complete the welding of the copper row. The specific operation steps are as follows: first, place the copper pipe on the predetermined position of the copper plate, and then use laser welding technology to tightly weld the copper pipe and the copper plate together. However, this direct welding method produces a large welding heat-affected zone during welding, which causes thermal stress on the copper plate and the copper pipe. Due to the thermal expansion characteristics of copper material at high temperature, the copper plate or copper pipe is prone to deformation such as warping and bending during welding. This deformation not only affects the appearance quality of the welded joint, but also further affects the structural strength and stability of the overall copper row, thereby reducing its performance in actual application. Therefore, how to effectively control the welding heat-affected zone and reduce welding deformation has become a key technical problem for improving the welding quality of water-cooled copper row. SUMMARY

[0004] Therefore, the utility model provides a kind of welding structure of water-cooled copper row, its purpose is to shorten the time of single welding by sectional welding method, to reduce the effect of welding heat-affected.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A welding structure of water-cooled copper row, the water-cooled copper row includes a copper plate and a copper pipe, a plurality of copper pipes are arrayed on the copper plate, a welding structure is provided at the connection between the copper pipe and the copper plate, the welding structure is used to fix the copper pipe and the copper plate, the welding structure includes a contact layer and a welding portion, the contact layer is provided on the side of the copper plate facing the copper pipe, and the welding portion is provided on both sides of the contact layer, wherein the contact layer is used to fill the tin paste at the connection between the copper plate and the copper pipe, and the welding portion is used to close the gap at the connection between the copper pipe and the copper plate.

[0007] As a preferred technical solution, the copper plate is provided with a boss on the side facing the copper pipe, and the length of the boss is equal to that of the copper pipe, the copper pipe is provided with a clamping groove on the side facing the copper plate, and the clamping groove is matched with the boss, and the contact layer is arranged on the top of the boss.

[0008] Further, the boss is arranged in a rectangular structure.

[0009] Further, a plurality of flow channels are arranged on the contact layer, and the two ends of the flow channels extend to the two sides of the boss.

[0010] Further, the inner walls on the two sides of the clamping groove are provided with an embedded block matched with the flow channels on the two sides of the boss.

[0011] Further, the flow channels are arranged in a tapered structure.

[0012] Further, the thickness of the boss is between 1.5 mm and 3.5 mm.

[0013] Further, the copper pipe is a square pipe.

[0014] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0015] Through the arrangement of the contact layer and the welding part, the user first applies tin paste on the surface of the contact layer, then places the copper pipe on the copper plate and presses it tightly, so that the tin paste is evenly distributed on the contact surface of the copper pipe and the copper plate. Next, the tin paste is heated to a molten state, and after cooling, a tin welding layer is formed to preliminarily fix the connection of the copper pipe and the copper plate. Then, secondary welding is performed, the solder is placed around the contact surface of the copper pipe and the copper plate, and heated to a molten state to fill the gap, and after cooling, a firm welding point is formed. Compared with the existing direct welding, this structure can effectively reduce the heat effect in the welding process and reduce the deformation of the copper bar. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be described by way of example and with reference to the accompanying drawings, in which:

[0017] Figure 1 is a perspective view of the water-cooled copper bar provided by the present application;

[0018] Figure 2 is a side view of the water-cooled copper bar provided by the present application;

[0019] Figure 3 is a perspective view of the water-cooled copper bar provided by the present application; Figure 2 is an enlarged structural schematic view of position A in FIG. 4;

[0020] Figure 4 is a structural schematic view of the boss provided by the present application.

[0021] Copper plate-1; Copper pipe-2; Boss-3; Clamping groove-4; Contact layer-5; Welding part-6; Flow channel-7. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] In the prior art, in the process of welding and assembling the water-cooled copper row, butt welding technology is usually adopted to complete the welding work of the copper row. The specific operation is to first position the copper pipe on the copper plate, and then use laser welding technology to firmly connect the copper pipe and the copper plate. However, this direct welding method will produce a large welding heat effect, which may cause the copper plate or the copper pipe to appear deformation phenomena such as warping or bending, thereby affecting the overall strength of the copper row.

[0024] Embodiment one

[0025] Therefore, in order to solve the above problems and realize the function of reducing welding heat effect and preventing the copper row from warping, the utility model discloses a welding structure of a water-cooled copper row, referring to Figure 1 , the water-cooled copper row comprises a copper plate 1 and a copper pipe 2, a plurality of copper pipes 2 are arrayed on the copper plate 1, a welding structure is arranged at the connection between the copper pipe 2 and the copper plate 1, the welding structure is used for fixing the copper pipe 2 and the copper plate 1, the welding structure comprises a contact layer 5 and a welding part 6, the contact layer 5 is arranged on one side of the copper plate 1 facing the copper pipe 2, the welding part 6 is arranged on both sides of the contact layer 5, wherein the contact layer 5 is used for filling the tin paste at the connection between the copper plate 1 and the copper pipe 2, and the welding part 6 is used for sealing the gap at the connection between the copper pipe 2 and the copper plate 1.

[0026] In this embodiment, before welding starts, the user can apply tin paste to the surface of the contact layer 5, then place the copper pipe 2 on the contact layer 5 and press it tightly, so that the tin paste can fill the contact surface of the copper pipe 2 and the copper plate 1, ensuring that the heat transfer efficiency is the highest, then heat and melt the tin paste, after the tin paste is completely melted and cooled, a stable tin welding layer is formed, at this time the connection between the copper pipe 2 and the copper plate 1 has been preliminarily fixed, then the copper row is welded again through the welding part 6, the welding part 6 is composed of solder, the solder is placed around the contact surface of the copper pipe 2 and the copper plate 1, then heated and welded, the solder melts at high temperature and fills the gap between the copper pipe 2 and the copper plate 1, and finally cools and solidifies to form a firm welding point, in this way, tin welding and laser welding can be used on the same welding piece.

[0027] It is worth mentioning that the welding part 6 is welded by using silicon bronze laser welding method. Through this welding structure, the heat effect in the welding process can be effectively reduced, the deformation of the copper bar is reduced, and the strength and reliability of the welding part are ensured.

[0028] In summary, the working steps of the welding structure of the water-cooled copper bar are as follows: firstly, tin paste is applied on the surface of the contact layer 5, then the copper pipe 2 is placed on the copper plate 1 and is pressed tightly to ensure that the tin paste is evenly distributed on the contact surface of the copper pipe 2 and the copper plate 1. Next, the tin paste is heated to a molten state, and after cooling, a tin welding layer is formed to preliminarily fix the connection of the copper pipe 2 and the copper plate 1. Subsequently, secondary welding is performed, the solder is placed around the contact surface of the copper pipe 2 and the copper plate 1, heated to the melting state of the solder, and after cooling, a firm welding point is formed.

[0029] Example Two

[0030] On the basis of example one, in order to improve the stability of the copper pipe 2 on the contact layer 5, referring to Figure 2 and Figure 3 The utility model also includes boss 3 and clamping groove 4, specifically, one side of copper plate 1 towards copper pipe 2 is equipped with boss 3, and the length of boss 3 is equal to that of copper pipe 2, one side of copper pipe 2 towards copper plate 1 is equipped with clamping groove 4 matched with boss 3, wherein, contact layer 5 is equipped on the top of boss 3.

[0031] In this embodiment, the setting of boss 3 and clamping groove 4 can improve the connection tightness between copper pipe 2 and copper plate 1, which helps to avoid displacement of copper pipe 2 on copper plate 1 before welding. At the same time, since the contact layer 5 is arranged on the top of the boss 3, it helps to make the tin paste more fully filled in the contact gap between the copper pipe 2 and the copper plate 1.

[0032] In a specific embodiment, the user first applies tin paste on the contact layer 5 and the boss 3, then aligns the side of the copper pipe 2 with the clamping groove 4 with the boss 3, and places the copper pipe 2 on the copper plate 1 to ensure that the clamping groove 4 and the boss 3 fit tightly. Then, appropriate pressure is applied. Since the tin paste is evenly distributed on the surface of the contact layer 5 and the boss 3, it will spread to the periphery after being subjected to pressure, so that the tin paste can be evenly filled in the gap between the contact layer 5, the clamping groove 4 and the boss 3.

[0033] In this way, the tin paste not only fills the gap between the copper pipe 2 and the copper plate 1, but also ensures that the gap between the boss 3 and the clamping groove 4 is also fully filled with tin paste. In this way, when the tin paste is heated, melted and cooled, a more stable and uniform tin welding layer can be formed, thereby further enhancing the connection strength between the copper pipe 2 and the copper plate 1.

[0034] In addition, in order to improve the tightness between the boss 3 and the clamping groove 4, the boss 3 is arranged in a rectangular structure, which can provide a larger contact area when cooperating with the clamping groove 4, thereby increasing the friction and preventing unnecessary movement of the copper pipe 2 during welding.

[0035] It should be noted that the thickness of the boss 3 also considers the heat conduction efficiency during welding, which ensures uniform temperature distribution in the welding area and helps to form a uniform weld. Specifically, the thickness of the boss 3 is between 1.5mm and 3.5mm.

[0036] It can be understood that, in order to facilitate the butt joint of the copper pipe 2 and the copper plate 1, the copper pipe 2 is a square tube, which can expand the contact surface of the copper pipe 2 and the copper plate 1, thereby improving the stability of the copper pipe 2 on the copper plate 1.

[0037] Example three

[0038] On the basis of example two, in order to make the tin paste more evenly spread between the boss 3 and the clamping groove 4, referring to Figure 4 The utility model also includes flow channel 7 for providing diffusion guide, specifically, a plurality of flow channels 7 are opened on the contact layer 5, and both ends of the flow channel 7 extend to both sides of the boss 3.

[0039] In this embodiment, when the user applies the tin paste on the contact layer 5 and the boss 3, some tin paste will fill in the flow channel 7. With the heating and melting of the tin paste, the flow channel 7 can guide the melted tin paste to evenly spread to both sides of the boss 3. It is expected that the tin paste can be evenly distributed in the welding area, and it is also helpful to reduce welding defects such as voids and uneven welds. Therefore, through the guiding effect of the flow channel 7, the tin paste can more effectively fill the gap between the boss 3 and the clamping groove 4.

[0040] In addition, in order to improve the flowability of the melted tin paste, the flow channel 7 is arranged in a tapered structure.

[0041] In another embodiment, the inner wall on both sides of the clamping groove 4 is provided with an embedded block, which is matched with the flow channel 7 on both sides of the boss 3. By embedding the embedded block in the flow channel 7, the connection tightness between the boss 3 and the clamping groove 4 can be further increased, so that the tin paste can be more evenly distributed in the welding area. Moreover, during the welding process, the embedded block can assist the melted tin paste to flow in the gap between the boss 3 and the clamping groove 4, thereby filling the gap.

[0042] In summary, in combination with examples one to three, the working steps of the welding structure of the water-cooled copper row are as follows:

[0043] First, tin paste is applied on the surface of the contact layer 5 and the boss 3, then the copper pipe 2 is placed on the copper plate 1, ensuring that the clamping groove 4 of the copper pipe 2 is tightly matched with the boss 3. Then appropriate pressure is applied to make the tin paste uniformly fill in the gap between the contact layer 5, the boss 3 and the clamping groove 4. After the tin paste is heated, melted and cooled, a stable tin solder layer is formed, preliminarily fixing the connection between the copper pipe 2 and the copper plate 1. Subsequently, the welding part 6 is heated, melted and filled in the gap between the copper pipe 2 and the copper plate 1 by laser welding, and finally cooled and solidified to form a firm welding point. Through this welding structure, not only the strength and reliability of the welding part are improved, but also the heat effect in the welding process is effectively reduced, and the deformation of the copper bar is reduced.

[0044] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welded structure for a water-cooled copper busbar, characterized in that, The water-cooled copper row comprises a copper plate (1) and copper pipes (2), a plurality of copper pipes (2) are arrayed on the copper plate (1), and a welding structure is arranged at the connecting position of the copper pipe (2) and the copper plate (1), and the welding structure is used for fixing the copper pipe (2) and the copper plate (1); The welding structure comprises a contact layer (5) and a welding part (6), the contact layer (5) is arranged on the side of the copper plate (1) facing the copper pipe (2), and the welding part (6) is arranged on the two sides of the contact layer (5), wherein the contact layer (5) is used for filling the tin paste at the connecting position of the copper plate (1) and the copper pipe (2), and the welding part (6) is used for sealing the gap at the connecting position of the copper pipe (2) and the copper plate (1).

2. The water-cooled copper bar welding structure according to claim 1, characterized by The side of the copper plate (1) facing the copper pipe (2) is provided with a boss (3), and the length of the boss (3) is equal to that of the copper pipe (2), the side of the copper pipe (2) facing the copper plate (1) is provided with a clamping groove (4) matched with the boss (3), and the contact layer (5) is arranged on the top of the boss (3).

3. The water-cooled copper bar welding structure according to claim 2, wherein The boss (3) is arranged in a rectangular structure.

4. The water-cooled copper bar welding structure of claim 2, wherein, A plurality of flow channels (7) are arranged on the contact layer (5), and the two ends of the flow channel (7) extend to the two sides of the boss (3).

5. The water-cooled copper bar welding configuration of claim 4, wherein, The inner walls on the two sides of the clamping groove (4) are provided with embedded blocks matched with the flow channels (7) on the two sides of the boss (3).

6. The water-cooled copper bar welding configuration of claim 4, wherein, The flow channel (7) is arranged in a tapered structure.

7. The water-cooled copper bar welding configuration of claim 2, wherein, The thickness of the boss (3) is between 1.5mm and 3.5mm.

8. The water-cooled copper buss weldment of claim 1, wherein, The copper pipe (2) is a square tube.

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