Aluminum extrusion and friction stir welding double-sided welding radiator

Abstract

The utility model relates to an aluminum extrusion and friction stir welding double-face welding radiator which comprises a first radiator and a second radiator which are connected through friction welding. The first radiator is integrally formed through aluminum extrusion and comprises a base and a first radiating fin group, and the first radiating fin group is arranged on the base; the second radiator is integrally formed through aluminum extrusion and comprises a top cover, a supporting part and a second radiating fin group, and the second radiating fin group and the supporting part are arranged on the top cover; the second radiator is installed on the first radiator, the supporting part is connected with the base through friction welding, and the second radiating fin set is oppositely arranged above the first radiating fin set.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, in particular to an aluminum extrusion and friction stir welding double-sided welded radiator. Background Art

[0002] As a heat dissipation product, welding heat sinks are a technology whose origins lie in the increasing demand for heat dissipation performance. With the development of industries such as industry and electronics, the demand for heat dissipation performance is becoming increasingly stringent, and welding heat sinks are gaining increasing attention as an efficient and reliable heat dissipation method. However, current welding heat sinks, due to structural issues, poor ventilation, or inappropriate design, may not effectively dissipate heat during operation, causing equipment temperatures to rise, impacting the normal operation and stability of the welding machine, and exhibiting insufficient heat dissipation efficiency. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a radiator which is double-sided welded by aluminum extrusion and friction stir welding.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: the present invention relates to a double-sided radiator welded by aluminum extrusion and stir friction welding, comprising a first radiator and a second radiator, the first radiator and the second radiator being connected by friction welding; the first radiator is integrally formed by aluminum extrusion, the first radiator comprises a base and a first heat sink group, the first heat sink group is arranged on the base; the second radiator is integrally formed by aluminum extrusion, the second radiator comprises a top cover, a support portion and a second heat sink group, the second heat sink group and the support portion are arranged on the top cover; the second radiator is installed on the first radiator, the support portion and the base are connected by friction welding, and the second heat sink group is relatively arranged above the first heat sink group.

[0005] Preferably, the first heat sink group includes a plurality of first heat sink fins, the second heat sink group includes a plurality of second heat sink fins, and the first heat sink fins and the second heat sink fins are aligned.

[0006] Preferably, the base is provided with an assembly groove, and the assembly groove is docked with the support portion so that the second radiator is friction-welded to the first radiator.

[0007] Preferably, the assembly grooves are provided on the bases on both sides of the first heat sink group, and the support portions are provided on the top covers on both sides of the second heat sink group.

[0008] Preferably, the support portion is an L-shaped protrusion, the friction welding portion between the support portion and the assembly groove is a tenon, a tight-fitting inclined surface is provided on the tenon, and a guide inclined surface is provided at the bottom of the assembly groove. When the assembly groove and the support portion are docked and installed, the tight-fitting inclined surface and the guide inclined surface are tightly engaged.

[0009] Preferably, at least one rib is provided on the inner wall surface of the support portion to facilitate assembly with other components.

[0010] Preferably, a plurality of device mounting holes are provided on the bottom surface of the first heat sink base to facilitate the assembly of the IGBT.

[0011] A plurality of device mounting grooves are provided on the top surface of the second heat sink top cover to facilitate the assembly of the MOS device.

[0012] The beneficial effects of the present utility model are as follows: The first heat sink and the second heat sink of the present utility model can be manufactured by an aluminum extrusion process and connected by friction welding, so that the first heat sink and the second heat sink are closely fitted and connected, thereby completing a double-sided welded heat sink.

[0013] In the present utility model, the second heat sink 2 is installed on the first heat sink, and the first heat sink group and the second heat sink group are arranged in alignment, which can ensure that heat can be more evenly dissipated through the fins, forming a continuous and aligned heat dissipation channel, enabling heat to flow more smoothly and avoiding the problem of insufficient heat dissipation efficiency, thereby improving the overall heat dissipation efficiency.

[0014] The present utility model also provides device mounting grooves on the bottom surface of the first heat sink base and the top surface of the second heat sink top cover to install the IGBT and the MOS device. By using the IGBT in combination with the MOS device, a more efficient and stable welding process can be achieved. The IGBT is responsible for the main power conversion and control, while the MOS transistor is used for auxiliary control and optimization of the welding performance. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 is a schematic diagram of the transverse structure of the present utility model.

[0017] Figure 3 is the present utility model Figure 2 an enlarged view of part A in

[0018] Figure 4 is the present utility model Figure 2 an enlarged view of part B in

[0019] Figure 5 is an exploded schematic diagram of the present utility model.

[0020] Figure 6 is the front view of the first heat sink of the present utility model.

[0021] Figure 7It is another perspective view of the first radiator of the present utility model.

[0022] Figure 8 It is the front view of the second radiator of the present utility model.

[0023] Figure 9 It is another perspective view of the second radiator of the present utility model.

[0024] Reference numerals

[0025] 1. First radiator; 11. Base; 111. Assembly groove; 1111. Guide inclined surface; 112. Device mounting hole; 12. First heat sink group; 121. First heat sink fin

[0026] 2. Second radiator; 21. Top cover; 211. Device mounting groove; 22. Second heat sink group; 221. Second heat sink fin; 23. Support part; 231. Rib; 232. Tenon; 233. Tight-fitting inclined surface. Detailed implementation mode

[0027] Please refer to Figures 1-9 As shown in the figure, the present utility model relates to a double-sided welded radiator by aluminum extrusion and friction stir welding, including a first radiator 1 and a second radiator 2. The first radiator 1 includes a base 11 and a first heat sink group 12, and the first heat sink group 12 is arranged above the base 11.

[0028] The second radiator 2 includes a top cover 21, a support part 23 and a second heat sink group 22. The second heat sink group 22 is arranged below the top cover 21, and the support part 23 is arranged on both sides of the second heat sink group 22. The second radiator 2 is installed on the first radiator 1 by friction welding. The support part 23 is connected to the base 11, so that the second radiator 2 is supported and installed on the first radiator 1. The second heat sink group 22 faces the first heat sink group 12, and the first heat sink group 12 and the second heat sink group 22 are horizontally aligned.

[0029] Furthermore, in this embodiment, the first heat sink group 12 is arranged at the central position of the base 11. The first radiator 1 is formed by aluminum extrusion. The aluminum-extruded radiator is light and efficient, and the base 11 and the first heat sink group 12 are integrally formed. In this embodiment, the second heat sink group 22 is arranged at the central position of the bottom of the top cover 21. The support part 23 is arranged on both sides of the second heat sink group 22. The second radiator 2 is formed by aluminum extrusion, and the top cover 21, the support part 23 and the second heat sink group 22 are integrally formed.

[0030] Among them, the first heat sink group 12 is composed of a plurality of first heat sink fins 121, and the second heat sink group 22 is composed of a plurality of second heat sink fins 221. Each of the second heat sink fins 221 is arranged in alignment with its corresponding first heat sink fin 121.

[0031] In this embodiment, assembly grooves 111 are provided on the two side bases 11 of the first heat sink group 12, and the supporting portion 23 is friction welded in the assembly grooves 111, so that the second radiator 2 is friction welded to the first radiator 1.

[0032] Furthermore, the supporting portion 23 is an L-shaped convex block. Among them, a tenon 232 is provided at the free end of the supporting portion 23, a tight-fitting inclined surface 233 is provided on the tenon 232, and a guiding inclined surface 1111 is provided on the inner side wall of the assembly groove 111. The tenon 232 and the assembly groove 111 are connected by friction welding. When the tenon 232 is inserted into the assembly groove 111, the guiding inclined surface 1111 and the tight-fitting inclined surface 233 increase the contact surface between the two, thereby making the connection more stable after friction welding.

[0033] In this embodiment, at least one rib 231 is provided on the inner wall surface of the supporting portion 23, and the rib 231 facilitates the assembly with other components.

[0034] In this embodiment, a plurality of device mounting holes 112 are provided on the bottom surface of the first heat sink base 11, and a plurality of device mounting grooves 211 are provided on the top surface of the second heat sink top cover 21. The device mounting holes 112 or the device mounting grooves 211 can be used to mount IGBTs (not shown in the figure) and MOS devices (not shown in the figure). The IGBT acts as the main power switching device in the welder. The IGBT can convert the direct current of the inverter circuit into high-frequency alternating current, and then obtain a stable DC output welding current through step-down of the main transformer and rectification and filtering. The MOS device plays an auxiliary control role in the welder. The MOS device controls the current at the drain of the output terminal by the voltage applied to the gate, and has the advantages of fast switching speed, small driving power, and high input impedance.

[0035] The first radiator 1 and the second radiator 2 of the present utility model can be manufactured by an aluminum extrusion process and connected by friction welding, so that the first radiator 1 and the second radiator 2 are closely and cooperatively connected, thereby completing a double-sided welding radiator. In the present utility model, the second radiator 2 is mounted on the first radiator 1, and the first heat sink group 12 and the second heat sink group 22 are arranged in alignment, which can ensure that heat can be more evenly dissipated through the fins, forming a continuous and aligned heat dissipation channel, enabling the heat to flow more smoothly and avoiding the problem that the heat dissipation efficiency may be insufficient, thereby improving the overall heat dissipation efficiency.

[0036] The present utility model also sets device mounting grooves on the bottom surface of the first heat sink base 11 and the top surface of the second heat sink top cover 21 to mount IGBTs and MOS devices. By using IGBTs in combination with MOS devices, a more efficient and stable welding process can be achieved. The IGBT is responsible for the main power conversion and control, while the MOS transistor is used for auxiliary control and optimization of welding performance.

[0037] The above embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. An aluminum extrusion and friction stir welding double-sided welded radiator, characterized in that: It includes a first radiator and a second radiator, and the first radiator and the second radiator are connected by friction welding; the first radiator is integrally formed by aluminum extrusion, the first radiator includes a base and a first heat sink group, and the first heat sink group is arranged on the base; the second radiator is integrally formed by aluminum extrusion, the second radiator includes a top cover, a support part and a second heat sink group, and the second heat sink group and the support part are arranged on the top cover; the second radiator is installed on the first radiator, the support part and the base are connected by friction welding, and the second heat sink group is relatively arranged above the first heat sink group.

2. The double-sided welded radiator by aluminum extrusion and friction stir welding according to claim 1, characterized in that: The first heat sink group includes a plurality of first heat sink fins, the second heat sink group includes a plurality of second heat sink fins, and the first heat sink fins and the second heat sink fins are arranged in alignment.

3. A double-sided welded radiator by aluminum extrusion and friction stir welding according to claim 1, characterized in that: An assembly groove is provided on the base, and the assembly groove is butt-jointed and installed with the support part, so that the second radiator is friction-welded to the first radiator.

4. The aluminum extrusion and friction stir welding double-sided welded radiator according to claim 3, characterized in that: The assembly groove is arranged on the two sides of the base of the first heat sink group, and the support part is arranged on the two sides of the top cover of the second heat sink group.

5. An aluminum extrusion and friction stir welding double-sided welded radiator according to claim 3 or 4, characterized in that: The support part is an L-shaped convex block, the friction-welding part of the support part and the assembly groove is a tenon head, a tight-fitting inclined surface is provided on the tenon head, and a guiding inclined surface is provided on the inner wall surface of the assembly groove. When the assembly groove and the support part are butt-jointed and installed, the tight-fitting inclined surface and the guiding inclined surface are connected by friction welding.

6. The aluminum extrusion and friction stir welding double-sided welded radiator according to claim 1, characterized in that: At least one rib is provided on the inner wall surface of the support part.

7. The aluminum extrusion and friction stir welding double-sided welded radiator according to claim 1, characterized in that:

8. The double-sided welded radiator by aluminum extrusion and friction stir welding according to claim 1, characterized in that: A plurality of device mounting holes are provided on the bottom surface of the base of the first radiator. A plurality of device mounting grooves are provided on the top surface of the top cover of the second radiator.

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