Surface treatment device for copper base material heat dissipation plate

Abstract

The utility model relates to the technical field of copper base material heat dissipation plate processing, in particular to a copper base material heat dissipation plate surface treatment device which comprises a spray head and an annular frame, a mounting frame is arranged in the spray head, a supporting assembly comprises an inner ring arranged in the mounting frame, a positioning groove is formed in the outer wall of the inner ring, and a magnet is arranged on the inner wall of the positioning groove; a butt joint block is arranged in the annular frame, supporting rods are arranged on the two sides of the outer wall of the annular frame, extending rods are arranged in the two supporting rods, through grooves are formed in the other ends of the extending rods, cavities are formed in the inner walls of the through grooves, rolling wheels and fixing shafts are arranged in the cavities, racks are arranged on the inner walls of the rolling wheels, and a plurality of hole grooves are formed in the outer walls of the fixing shafts. And a convex block and an ejector rod are arranged in each hole groove. According to the utility model, the position and the moving speed of the spray head are positioned and limited through the support frame linked with the spray head and the heat dissipation plate during sand blasting, so that the stability of the spray head in the sand blasting process is improved, and the quality of sand blasting operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of copper substrate heat sink processing technology, specifically a copper substrate heat sink surface treatment device. Background Technology

[0002] Finned copper heat sinks are highly efficient heat dissipation devices, commonly used for cooling high-performance electronic components such as IGBT modules. The finned structure significantly increases the surface area of ​​the heat sink, allowing heat to be conducted more quickly from the heat source to the heat sink. After production, the surface of the finned copper heat sink undergoes sandblasting to remove impurities and eliminate machining marks.

[0003] However, in the current technology, when manually operating the sandblasting process on the substrate, it is easy for the nozzle of the sandblasting gun to be too close or too far from the substrate, or for the sandblasting gun to travel at an unstable speed. These situations can lead to the sandblasting area being too dense or too sparse, causing deviations on the substrate surface and affecting the sandblasting quality. Utility Model Content

[0004] The purpose of this invention is to provide a surface treatment device for copper substrate heat sinks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A surface treatment device for a copper substrate heat sink includes a nozzle and a ring frame. The nozzle has an internal mounting frame, and the ring frame has an external support assembly for assisting sandblasting. The support assembly includes an inner ring disposed inside the mounting frame. The outer wall of the inner ring has a positioning groove, and the inner wall of the positioning groove has a magnet.

[0007] The ring frame has a connecting block inside, and support rods are provided on both sides of the outer wall of the ring frame. Each of the two support rods has an extension rod inside, and the other end of the extension rod has a through groove. The inner wall of the through groove has a cavity, and a roller and a fixed shaft are provided inside the cavity. The inner wall of the roller has a rack, and the outer wall of the fixed shaft has multiple holes and slots. Each of the multiple holes and slots has a protrusion and a push rod inside.

[0008] As a preferred embodiment of this utility model, the inner ring sleeve is inside the mounting frame and is rotatably connected to the inner wall of the mounting frame via a bearing. The positioning groove of the inner ring is connected to one side of the mounting frame, and the magnet is embedded in the inner wall of the positioning groove.

[0009] As a preferred embodiment of this utility model, the docking block is located on the inner wall of the ring frame, and when the ring frame is sleeved on the outside of the inner ring, the docking block slides into the inside of the inner ring through the positioning groove, and the magnet is magnetically connected to the docking block.

[0010] As a preferred embodiment of this utility model, the two support rods are arranged in a ring around the outside of the ring frame and are connected to the outer wall of the ring frame by welding. The extension rod is located inside the support rod and is slidably connected to the inside of the support rod, and one end of the extension rod is rotatably connected to the inner wall of the support rod.

[0011] In a preferred embodiment of this utility model, both the roller and the fixed shaft are located in the cavity of the through groove, and the roller is sleeved outside the fixed shaft and rotatably connected to the fixed shaft. The rack is distributed in a ring on the inner wall of the roller.

[0012] As a preferred embodiment of this utility model, a plurality of the holes and grooves are distributed in a ring outside the fixed shaft. One end of the protrusion is located inside the hole and groove and is slidably connected to the inner wall of the hole and groove, and is connected to the top rod. The other end extends out of the hole and groove and meshes with the rack on the inner wall of the roller. A humming block is installed inside the hole and groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Addressing the problems raised in the background art, this application employs a support assembly. A ring frame and support rod are installed outside the nozzle. An extension rod within the support rod can be engaged with a through-groove outside the extension rod before sandblasting. During sandblasting, the nozzle drives the extension rod to move on the heat sink, thus maintaining a stable distance between the nozzle and the heat sink. Furthermore, a roller within the through-groove of the extension rod corresponds to a fixed shaft. The engagement of the rack and protrusion within the fixed shaft and roller limits the speed of the roller's rotation, ensuring stable nozzle movement. By limiting the distance between the nozzle and the heat sink and the movement speed during sandblasting, the stability of sandblasting is improved, thereby enhancing the quality of the sandblasting.

[0014] This invention uses a support frame that links the nozzle to the heat sink to limit the position and movement speed of the nozzle during sandblasting, thereby improving the stability of the nozzle during sandblasting and consequently increasing the quality of the sandblasting operation. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the nozzle of this utility model;

[0016] Figure 2 This is a structural diagram of the ring frame and support rod of this utility model;

[0017] Figure 3 This is a cross-sectional view of the inner wall of the through groove of this utility model;

[0018] Figure 4 This is an enlarged view of part A of this utility model.

[0019] In the diagram: 1. Nozzle; 2. Mounting bracket; 3. Inner ring; 301. Positioning groove; 302. Magnet; 4. Ring frame; 401. Connecting block; 5. Support rod; 6. Extension rod; 601. Through groove; 7. Cavity; 8. Roller; 801. Rack; 9. Fixed shaft; 901. Hole groove; 902. Protrusion; 903. Top rod. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Example

[0021] Please see Figure 1-4 This utility model provides a technical solution: a surface treatment device for a copper substrate heat sink, including a nozzle 1 and a ring frame 4. The nozzle 1 is provided with a mounting frame 2 inside, and the ring frame 4 is provided with a support component for assisting sandblasting. The support component includes an inner ring 3 disposed inside the mounting frame 2. The inner ring 3 can rotate within the mounting frame 2, thereby driving the connected ring frame 4 to rotate around the nozzle 1. The outer wall of the inner ring 3 is provided with a positioning groove 301, and the inner wall of the positioning groove 301 is provided with a magnet 302, which can magnetically attract the ring frame 4 to the docking block 401 after the ring frame 4 is connected to the inner ring 3, thereby improving the stability of the ring frame 4.

[0022] The ring frame 4 has a connecting block 401 inside. The connecting block 401, in conjunction with the mounting frame 2 and the positioning groove 301 in the inner ring 3, can position the ring frame 4 at an angle during installation. Support rods 5 are provided on both sides of the outer wall of the ring frame 4 to position the extension rod 6 at an angle and to restrict the extension rod 6 during telescopic adjustment. Each of the two support rods 5 has an extension rod 6 inside. The extension rod 6 can slide within the support rod 5 to adjust according to the width of the heat sink, and one end can rotate and extend out within the support rod 5. The extension rod 6 also... One end is provided with a through groove 601, which can be fitted into the edge of the heat sink plate, thereby linking the nozzle 1 with the heat sink plate. The distance between the nozzle 1 and the heat sink plate is positioned by the support rod 5 and the extension rod 6, and the distance remains stable when the nozzle 1 moves. The inner wall of the through groove 601 is provided with a cavity 7 for housing the roller 8 and the fixed shaft 9. The roller 8 and the fixed shaft 9 are arranged inside the cavity 7. The fixed shaft 9 can position the angle and position of the roller 8, and the roller 8 extends out of the cavity 7 into the through groove 601. Inside the roller 8, the edge of the heat sink plate in the through groove 601 abuts against the roller 8, which assists in the movement of the extension rod 6 and the heat sink plate, facilitating the movement of the extension rod 6 on the heat sink plate. The inner wall of the roller 8 is provided with a rack 801, and the outer wall of the fixed shaft 9 is provided with multiple holes and slots 901. Each of the multiple holes and slots 901 is provided with a protrusion 902 and a push rod 903. The rack 801 on the inner wall of the roller 8 abuts against the protrusion 902 on the outer side of the fixed shaft 9. Through meshing, the roller 8 and the fixed shaft 9 can be blocked from rotating, thereby controlling the rotation speed of the roller 8. The speed of the extension rod 6 and the heat sink is limited by the roller 8. When the roller 8 rotates, the rack 801 abuts against the protrusion 902 and pushes the protrusion 902 into the slot 901. At the same time, the push rod 903 hits the sounding block in the slot 901 to produce a sound. The interval between the sounds reminds the nozzle 1 of its speed when it moves, thereby limiting the speed of the nozzle 1 when it moves to sandblast, thus improving the stability of the sandblasting process, ensuring the stability of the sandblasting thickness, and improving the quality of sandblasting.

[0023] In this embodiment, all electrical components are controlled by a conventional controller.

[0024] For an example, please refer to... Figure 1-4The inner ring 3 is fitted inside the mounting frame 2 and is rotatably connected to the inner wall of the mounting frame 2 via a bearing. The positioning groove 301 of the inner ring 3 is through one side of the mounting frame 2. The magnet 302 is embedded in the inner wall of the positioning groove 301. The mating block 401 is located on the inner wall of the ring frame 4, and when the ring frame 4 is fitted outside the inner ring 3, the mating block 401 slides through the positioning groove 301 to the inside of the inner ring 3, and the magnet 302 is magnetically connected to the mating block 401. The two support rods 5 are distributed in a ring outside the ring frame 4 and are connected to the outer wall of the ring frame 4 by welding. The extension rod 6 is located inside the support rod 5 and is connected to the support rod 5. The rod 5 is slidably connected, and one end of the extension rod 6 is rotatably connected to the inner wall of the support rod 5. The roller 8 and the fixed shaft 9 are both located in the cavity 7 in the through groove 601, and the roller 8 is sleeved on the outside of the fixed shaft 9 and rotatably connected to the fixed shaft 9. The rack 801 is distributed in a ring on the inner wall of the roller 8, and multiple holes and slots 901 are distributed in a ring on the outside of the fixed shaft 9. One end of the protrusion 902 is located in the hole and slot 901 and is slidably connected to the inner wall of the hole and slot 901 and connected to the top rod 903. The other end extends out of the hole and slot 901 and meshes with the rack 801 on the inner wall of the roller 8. A humming block is installed inside the hole and slot 901. In use, the ring frame 4 is first fitted onto the outside of the inner ring 3 by the internal docking block 401, which works in conjunction with the mounting frame 2 and the positioning groove 301 on the outside of the inner ring 3. At the same time, the magnet 302 on the inner wall of the positioning groove 301 is magnetically attracted to the docking block 401 for fixation. Then, the extension rod 6 is pulled to extend and retract within the support rod 5 to correspond to the width of the heat sink plate. The extension rod 6 is then rotated to fold, so that the through groove 601 on the outside of the extension rod 6 is engaged with the edge of the heat sink plate. The distance between the nozzle 1 and the heat sink plate is set by the extension rod 6. During the sandblasting process, when the nozzle 1 moves, it drives the extension rod 6 to move on the heat sink plate. At the same time, the roller 8 is in contact with the heat sink plate, causing the roller 8 to rotate. The speed of the roller 8 rotation is limited by the gear 801 on the inner wall of the roller 8 and the protrusion 902 on the outer wall of the fixed shaft 9. At the same time, the speed of the extension rod 6 and the nozzle 1 movement is synchronously limited by the roller 8, which improves the stability and quality of sandblasting.

[0025] The working process of this utility model is as follows: First, the ring frame 4 is fitted onto the outside of the inner ring 3 via the internal docking block 401, in conjunction with the mounting frame 2 and the positioning groove 301 on the outside of the inner ring 3. Simultaneously, the magnet 302 on the inner wall of the positioning groove 301 is magnetically attracted to the docking block 401 for fixation. Then, the extension rod 6 is pulled to extend and retract within the support rod 5, corresponding to the width of the heat sink. The extension rod 6 is then rotated and folded, causing the through groove 601 on the outside of the extension rod 6 to engage with the edge of the heat sink. The distance between the nozzle 1 and the heat sink is set via the extension rod 6. During sandblasting, the movement of the nozzle 1 drives the extension rod 6 to move on the heat sink. Simultaneously, the roller 8 engages with the heat sink, causing the roller 8 to rotate. The speed of the roller 8 rotation is limited by the meshing of the rack 801 on the inner wall of the roller 8 with the protrusion 902 on the outer wall of the fixed shaft 9. The roller 8 also synchronously limits the movement speed of the extension rod 6 and the nozzle 1, improving the stability and quality of sandblasting. This invention uses a support frame that links the nozzle to the heat sink to limit the position and movement speed of the nozzle during sandblasting, thereby improving the stability of the nozzle during sandblasting and consequently increasing the quality of the sandblasting operation.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for a copper substrate heat sink, comprising a nozzle (1) and a ring frame (4), wherein a mounting frame (2) is provided inside the nozzle (1), and a support component for assisting sandblasting is provided outside the ring frame (4), characterized in that: The support assembly includes an inner ring (3) disposed inside the mounting bracket (2), the outer wall of the inner ring (3) is provided with a positioning groove (301), and the inner wall of the positioning groove (301) is provided with a magnet (302). The ring frame (4) is provided with a docking block (401) inside. Support rods (5) are provided on both sides of the outer wall of the ring frame (4). Extension rods (6) are provided inside the two support rods (5). A through groove (601) is provided at the other end of the extension rod (6). A cavity (7) is provided on the inner wall of the through groove (601). A roller (8) and a fixed shaft (9) are provided inside the cavity (7). A rack (801) is provided on the inner wall of the roller (8). Multiple holes (901) are provided on the outer wall of the fixed shaft (9). A protrusion (902) and a push rod (903) are provided inside the multiple holes (901).

2. The surface treatment device for a copper substrate heat sink according to claim 1, characterized in that: The inner ring (3) is fitted inside the mounting bracket (2) and is rotatably connected to the inner wall of the mounting bracket (2) via a bearing. The positioning groove (301) of the inner ring (3) is connected to one side of the mounting bracket (2), and the magnet (302) is embedded in the inner wall of the positioning groove (301).

3. The surface treatment device for a copper substrate heat sink according to claim 1, characterized in that: The docking block (401) is located on the inner wall of the ring frame (4), and when the ring frame (4) is sleeved on the outside of the inner ring (3), the docking block (401) slides and extends into the inside of the inner ring (3) through the positioning groove (301), and the magnet (302) is magnetically connected to the docking block (401).

4. The surface treatment device for a copper substrate heat sink according to claim 1, characterized in that: The two support rods (5) are arranged in a ring outside the ring frame (4) and are connected to the outer wall of the ring frame (4) by welding. The extension rod (6) is located inside the support rod (5) and is slidably connected to the support rod (5). One end of the extension rod (6) is rotatably connected to the inner wall of the support rod (5).

5. The surface treatment device for a copper substrate heat sink according to claim 1, characterized in that: The roller (8) and the fixed shaft (9) are both located in the cavity (7) in the through groove (601), and the roller (8) is sleeved on the outside of the fixed shaft (9) and rotatably connected to the fixed shaft (9). The rack (801) is distributed in a ring on the inner wall of the roller (8).

6. The surface treatment device for a copper substrate heat sink according to claim 1, characterized in that: Multiple slots (901) are distributed in a ring outside the fixed shaft (9). One end of the protrusion (902) is located inside the slot (901) and is slidably connected to the inner wall of the slot (901) and connected to the top rod (903). The other end extends out of the slot (901) and meshes with the rack (801) on the inner wall of the roller (8). A humming block is installed inside the slot (901).

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