A heat sink, a chip heat sink and its processing technology

Abstract

This application relates to a heat sink, including a base plate and a plurality of heat dissipation columns disposed on the base plate. Each heat dissipation column includes a top surface, which is inclined and serves as a retardation surface to receive and slow down cooling water. The retardation surface is generally quadrilateral. When cooling water moves toward the retardation surface, the inclined surface forces the cooling water to rise along it, further slowing it down and allowing for more thorough heat exchange. This further improves the heat dissipation effect on the components to be cooled. The quadrilateral shape of the retardation surface also prevents the cooling water from flowing through the water, further slowing it down and creating turbulence, thus enhancing the cooling effect on the components to be cooled.

Description

Technical Field

[0001] This application relates to the field of heat dissipation technology, and in particular to a heat sink, a chip heat sink, and their processing technology. Background Technology

[0002] A water-cooled radiator has an inlet and an outlet, and multiple water channels inside to fully utilize the advantages of water cooling and remove more heat. This is the basic principle of a water-cooled radiator. Most existing heat sinks are typically finned fins, which consist of a base plate and multiple fins perpendicular to the base plate. These fins are arranged parallel to each other, allowing cooling water to flow between adjacent fins, thus carrying away heat from the base plate and fins and achieving a cooling effect. However, the cooling water flows relatively quickly between adjacent fins, and before it can be fully cooled, it flows away, reducing the cooling effect of the cooling water as it passes through the heat sink. Summary of the Invention

[0003] In a first aspect, in order to improve the heat dissipation effect of cooling water on the heat dissipation component when passing through the heat sink, this application provides a heat sink.

[0004] The heat sink provided in this application adopts the following technical solution:

[0005] A heat sink includes a base plate and a plurality of heat dissipation columns disposed on the base plate. Each heat dissipation column includes a top surface, which is inclined and serves as a retardation surface for receiving and slowing down cooling water. The retardation surface is generally quadrilateral in shape.

[0006] By adopting the above technical solution, when cooling water is transported to the deceleration surface, the arrangement of multiple heat dissipation columns can block the flow of cooling water, allowing the cooling water to fully exchange heat and achieve cooling when flowing between the multiple heat dissipation columns. When the cooling water moves towards the deceleration surface, because the deceleration surface is inclined, the cooling water needs to rise along the inclined deceleration surface, which again slows down the cooling water, allowing the cooling water to further fully exchange heat and thus further improve the heat dissipation effect on the heat dissipation components. Setting the deceleration surface as a quadrilateral allows the four sides of the quadrilateral deceleration surface to block the cooling water, further slowing down the cooling water, causing the cooling water to generate turbulence, and improving the turbulence effect of the cooling water, thereby further improving the heat dissipation effect on the heat dissipation components.

[0007] Optionally, the heat dissipation column includes a water-facing surface, a water-returning surface, a first flow guide surface, and a second flow guide surface. The first flow guide surface is disposed between the water-facing surface and the water-returning surface and on one side of the water-facing surface and the water-returning surface. The second flow guide surface is disposed between the water-facing surface and the water-returning surface and on the other side of the water-facing surface and the water-returning surface. The water-facing surface and the water-returning surface have the same width. The first flow guide surface and the second flow guide surface have the same width. The width of the water-facing surface is smaller than the width of the first flow guide surface.

[0008] By adopting the above technical solution, the heat dissipation column includes a water-facing surface, a back surface, a first guide surface, and a second guide surface. When the cooling water flows towards the water-facing surface, the water-facing surface can block the cooling water, causing the cooling water to flow between the adjacent first and second guide surfaces. At this time, the cooling water flows to the location of the back surface, thereby blocking the cooling water again and improving the slowing effect on the cooling water. The width of the water-facing surface is smaller than the width of the second guide surface, which improves the flow effect of the cooling water between the adjacent first and second guide surfaces, so that the water-facing surface does not control the flow speed of the cooling water too slowly, thereby further improving the cooling effect of the cooling water on the heat dissipation components.

[0009] Optionally, the quadrilateral retardation surface includes four vertices, one of which is located on the side where the water-facing surface and the second guide surface intersect.

[0010] By adopting the above technical solution, it is easy to process the heat dissipation column. One of the vertices is placed on the side where the water-facing surface and the second guide surface intersect. This allows the slowing surface to work with the side where the water-facing surface and the second guide surface intersect to slow down the cooling water, thereby improving the heat exchange effect of the cooling water when passing through multiple heat dissipation columns.

[0011] Optionally, one vertex of the quadrilateral slowing surface is located on the side where the backwater surface and the first guide surface intersect.

[0012] By adopting the above technical solution, it is easier to process the heat dissipation column. One of the vertices is placed on the side where the back water surface and the first guide surface intersect, so that the slowing surface, together with the side where the back water surface and the first guide surface intersect, can further slow down the cooling water and improve the heat exchange effect of the cooling water when passing through multiple heat dissipation columns.

[0013] Optionally, the height of the vertex of the quadrilateral's deceleration surface located on the side where the water-facing surface and the second guide surface intersect is lower than the height of the vertex located on the side where the water-repellent surface and the first guide surface intersect.

[0014] By adopting the above technical solution, the retardation surface is tilted downwards towards the water-facing surface, so that the cooling water needs to flow upwards and climb over the retardation surface when passing through it. This makes the retardation surface have a better retardation effect on the cooling water and improves the cooling effect of the cooling water on the heat dissipation column.

[0015] Optionally, one end of the heat dissipation column is fixedly mounted on the base plate, and the other end is inclined along the direction from the water-facing side to the water-repelling side.

[0016] By adopting the above technical solution, the heat dissipation column is set at an angle, which increases the contact area between the cooling water and the heat dissipation column, thereby improving the heat dissipation effect of the cooling water on the heat dissipation column. When the cooling water passes through the angled heat dissipation column, it needs to climb over the angled heat dissipation column to continue flowing forward, thereby slowing down the cooling water in the angled state of the heat dissipation column and improving the heat dissipation effect of the cooling water on the heat dissipation column.

[0017] Optionally, the acute angles formed between the water-facing surface and the plane containing the bottom plate, as well as between the water-repellent surface and the plane containing the bottom plate, are both set to 65 degrees.

[0018] By adopting the above technical solution and setting the included angle to 65 degrees, the cooling water flow rate can be effectively controlled when passing through multiple heat dissipation columns, and the heat dissipation columns can be fully cooled.

[0019] Optionally, connecting blocks are provided between the water-facing surface and the bottom plate, and between the second flow-guiding surface and the bottom plate, with the connecting blocks extending away from the water-facing surface and the second flow-guiding surface.

[0020] By adopting the above technical solution, the connection block increases the contact area between the heat dissipation column and the base plate, thereby improving the heat transfer effect of transferring heat to the heat dissipation column through the connection block and the base plate. At the same time, the connection block increases the contact effect with the cooling water, further improving the heat dissipation effect of the cooling water.

[0021] Secondly, in order to improve the heat dissipation effect of cooling water on the heat dissipation components when passing through the heat sink, this application provides a chip heat sink.

[0022] The chip heat sink provided in this application adopts the following technical solution:

[0023] A chip heat sink includes multiple heat sinks. The chip heat sink includes a plate and multiple components to be cooled, which are disposed on the plate. The plate is hollow. Water inlet pipes and 6C34 outlet pipes are disposed on the plate and on both sides of the plate, communicating with the hollow plate. Multiple mounting ports are opened on the plate. Multiple base plates are fixedly disposed in the mounting ports one by one. Multiple heat dissipation columns are located in the hollow plate. Multiple components to be cooled are disposed one by one with the multiple base plates.

[0024] By adopting the above technical solution, cooling water is introduced through the inlet pipe. At this time, the cooling water can flow in the hollow plate. The cooling water can pass through multiple heat dissipation columns, so that the heat transferred from the component to be cooled to the heat dissipation column through the base plate is carried away. The cooled water after heat dissipation is discharged along the outlet pipe, realizing heat dissipation for multiple components. Furthermore, the use of multiple heat dissipation columns improves the heat dissipation effect for each component.

[0025] Thirdly, in order to improve the heat dissipation effect of cooling water on the heat dissipation components when passing through the heat sink, this application provides a heat sink processing technology.

[0026] The heat sink processing technology provided in this application adopts the following technical solution:

[0027] A heat sink manufacturing process, characterized by comprising:

[0028] The heat sink is processed using a tooth-shaving machine. The tooth-shaving machine's blade is adjusted to an angle of 13°-17° with the base plate. The tooth-shaving machine drives the blade downwards, causing it to carve out a row of protrusions on the base plate. The blade rises, causing the protrusions to flip up. The angle between the protrusions and the base plate is controlled, and the blade is driven downwards sequentially along the width of the base plate, causing the tooth-shaving machine's blade to carve out multiple rows of protrusions. At this time, the base plate is rotated 90 degrees horizontally, causing the tooth-shaving machine's blade to also drive downwards at an angle of 13°-17°, causing the blade to simultaneously carve and cut multiple rows of protrusions. The blade carves multiple heat sink columns by cutting multiple rows of protrusions downwards along the length of the protrusions. By driving the tooth-shaving machine's blade to carve and cut sequentially along the length of the protrusions, the blade carves multiple rows of protrusions to form multiple rows of heat sink columns. When the blade is carving downwards, it causes the heat sink columns to form a slow-moving surface. When the blade is lifted, it causes multiple heat sink columns to lift up, thus completing the processing of the heat sink.

[0029] By adopting the above technical solution, multiple heat dissipation columns are carved out of the base plate using the scraper of the tooth-scraping machine. The entire processing can be automated, and the processing method is convenient and simple, which is in line with actual production applications. This improves the production efficiency of heat sink production. Furthermore, the heat dissipation columns are carved out using the original material of the base plate, which improves the heat transfer effect of the heat dissipation columns and indirectly improves the heat dissipation effect of the heat dissipation columns on the base plate and the components to be cooled. Moreover, no waste is generated in the entire processing process, and heat dissipation columns can be formed with relatively thin substrate, resulting in high utilization.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. When cooling water is transported to the deceleration surface, the arrangement of multiple heat dissipation columns can obstruct the flow of cooling water, allowing the cooling water to fully exchange heat and achieve cooling as it flows between the heat dissipation columns. When the cooling water moves towards the deceleration surface, because the deceleration surface is inclined, the cooling water needs to rise along the inclined deceleration surface, which again slows down the cooling water, allowing the cooling water to further fully exchange heat and thus further improve the heat dissipation effect on the heat dissipation components. Setting the deceleration surface as a quadrilateral makes the four sides of the quadrilateral deceleration surface obstruct the cooling water, further slowing down the cooling water, causing the cooling water to generate turbulence, and improving the turbulence effect of the cooling water, thereby further improving the heat dissipation effect on the heat dissipation components.

[0032] 2. The retarder surface is tilted downwards towards the water-facing surface, so that the cooling water needs to flow upwards and climb over the retarder surface when passing through it, so that the retarder surface has a better retarder effect on the cooling water and improves the cooling water's heat dissipation effect on the heat sink.

[0033] 3. The overall slant of the heat dissipation column increases the contact area between the cooling water and the heat dissipation column, thereby improving the heat dissipation effect of the cooling water on the heat dissipation column. When the cooling water passes through the slanted heat dissipation column, it needs to climb over the slanted heat dissipation column to continue flowing forward, thus slowing down the cooling water in the slanted state of the heat dissipation column and improving the heat dissipation effect of the cooling water on the heat dissipation column. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the heat sink according to Embodiment 1 of this application;

[0035] Figure 2 This is a schematic diagram illustrating the structure of the heat dissipation column in Embodiment 1 of this application;

[0036] Figure 3 This is a structural schematic diagram of Embodiment 1 of this application, illustrating the backwater surface and the first guide surface;

[0037] Figure 4 This is a schematic diagram of the structure of Embodiment 1 of this application, showing the included angle between the heat sink column and the connecting plate;

[0038] Figure 5 This is a schematic diagram of the overall structure of the plate body according to Embodiment 2 of this application;

[0039] Figure 6 This is a schematic diagram of the first downward shovel cut of the blade in Embodiment 3 of this application;

[0040] Figure 7 yes Figure 6 Enlarged view of part A in the image;

[0041] Figure 8 This is a schematic diagram of the second downward shovel cutter in Embodiment 3 of this application;

[0042] Figure 9 yes Figure 8 Enlarged view of part B in the image.

[0043] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Heat dissipation column; 111. Deceleration surface; 112. Water-facing surface; 113. Water-repelling surface; 114. First guide surface; 115. Second guide surface; 116. Bend; 117. Chamfer; 118. First connecting block; 119. Second connecting block; 12. Mounting plate; 121. Connecting plate; 2. Plate body; 21. Inlet pipe; 22. Outlet pipe; 23. Mounting port; 3. Shovel; 31. Upper wall; 32. Lower wall; 33. Protrusion. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0045] Example 1:

[0046] This application discloses a heat sink. (Refer to...) Figure 1 A heat sink includes a base plate 1 and a plurality of heat dissipation columns 11 integrally mounted on the base plate 1. The base plate 1 includes a mounting plate 12 and a connecting plate 121 mounted on the mounting plate 12. The plurality of heat dissipation columns 11 are evenly distributed on the surface of the connecting plate 121 facing away from the mounting plate 12. Both the base plate 1 and the heat dissipation columns 11 are made of aluminum alloy and have good thermal conductivity. Each heat dissipation column 11 includes a top surface, which is inclined and serves as a retardation surface 111 for receiving and slowing down cooling water. The retardation surface 111 is generally quadrilateral in shape.

[0047] Combination Figure 2 and Figure 3The heat dissipation column 11 has a rectangular cross-section. The rectangular heat dissipation column 11 includes a water-facing surface 112, a water-returning surface 113, a first guide surface 114, and a second guide surface 115. The first guide surface 114 is located between the water-facing surface 112 and the water-returning surface 113 and is situated on one side of the water-facing surface 112 and the water-returning surface 113. The second guide surface 115 is located between the water-facing surface 112 and the water-returning surface 113 and is situated on the other side of the water-facing surface 112 and the water-returning surface 113. In this embodiment, the first guide surface 114 is located on the left side of the water inlet direction, and the second guide surface 115 is located on the right side of the water inlet direction.

[0048] Combination Figure 2 and Figure 3 The water-facing surface 112 and the back surface 113 are arranged parallel to each other, and the first guide surface 114 and the second guide surface 115 are arranged parallel to each other. In order to improve the blocking effect on the cooling water and thus slow down the flow rate of the cooling water to a certain extent, the width of the water-facing surface 112 and the back surface 113 is the same, the width of the first guide surface 114 and the second guide surface 115 is the same, and the width of the water-facing surface 112 is smaller than the width of the first guide surface 114; the bottom edge of the first guide surface 114 is set as a curved part 116 that bends toward the position of the second guide surface 115.

[0049] Combination Figure 2 and Figure 3 The quadrilateral retardation surface 111 includes four vertices. The first vertex of the quadrilateral retardation surface 111 is located on the side where the upstream surface 112 and the second guide surface 115 intersect. The second vertex of the quadrilateral retardation surface 111 is located on the side where the upstream surface 112 and the first guide surface 114 intersect. The third vertex of the quadrilateral retardation surface 111 is located on the side where the downstream surface 113 and the first guide surface 114 intersect. The fourth vertex of the quadrilateral retardation surface 111 is located on the side where the downstream surface 113 and the second guide surface 115 intersect.

[0050] Combination Figure 2 and Figure 3 The quadrilateral slowing surface 111 has a chamfer 117 at the vertex of the side where the backwater surface 113 and the first guide surface 114 intersect. The chamfer 117 is arc-shaped, and the notch of the arc-shaped chamfer 117 faces the position of the bottom plate 1.

[0051] Combination Figure 2 and Figure 3The height of the vertex of the quadrilateral deceleration surface 111 located on the side where the upstream surface 112 and the second guide surface 115 intersect is lower than the height of the vertex located on the side where the downstream surface 113 and the first guide surface 114 intersect; the height of the vertex of the quadrilateral deceleration surface 111 located on the side where the upstream surface 112 and the first guide surface 114 intersect is the same as the height of the vertex located on the side where the downstream surface 113 and the second guide surface 115 intersect; the second vertex of the quadrilateral deceleration surface 111 is located vertically between the first vertex and the third vertex.

[0052] Combination Figure 3 and Figure 4 One end of the heat dissipation column 11 is fixedly mounted on the connecting plate 121, and the other end is inclined along the direction from the water-facing surface 112 toward the back water-facing surface 113; the acute angles formed between the plane containing the water-facing surface 112 and the connecting plate 121, and between the plane containing the back water-facing surface 113 and the connecting plate 121, are both set to 65 degrees.

[0053] like Figure 2 As shown, connecting blocks are provided between the water-facing surface 112 and the connecting plate 121, and between the second flow guiding surface 115 and the connecting plate 121. The connecting blocks extend in a direction away from the water-facing surface 112 and the second flow guiding surface 115. In this embodiment, the connecting blocks include a first connecting block 118 and a second connecting block 119. The first connecting block 118 is located between the water-facing surface 112 and the connecting plate 121 and extends in a direction away from the water-facing surface 112. The second connecting block 119 is located between the second flow guiding surface 115 and the connecting plate 121 and extends in a direction away from the second flow guiding surface 115. The second connecting block 119 and the first connecting block 118 are integrally formed. The middle parts of the first connecting block 118 and the second connecting block 119 are both arc-shaped. The concave parts of the arc-shaped first connecting block 118 and the second connecting block 119 are directed away from the heat dissipation column 11.

[0054] Example 2:

[0055] like Figure 5As shown, a chip heat sink includes multiple heat sinks as described in Embodiment 1. The chip heat sink includes a plate 2 and multiple components (not shown) to be cooled, which can be chips or other devices requiring heat dissipation, disposed on the plate 2. The plate 2 is hollow overall. Water inlet pipes 21 and water outlet pipes 22 are provided on the plate 2 and on both sides of the plate 2, communicating with the hollow plate 2. The cross-sections of the water inlet pipes 21 and water outlet pipes 22 are arc-shaped, with the concave openings of the arc-shaped water inlet pipes 21 and water outlet pipes 22 facing the plate 2 and communicating with the plate 2. Multiple mounting holes 23 are provided on the plate 2, and multiple mounting plates 12 correspond one-to-one. The mounting plate 12 is fixedly installed in the mounting port 23, so that the mounting plate 12 drives the multiple heat dissipation columns 11 on the connecting plate 121 to be installed in the hollow plate body 2. Multiple components to be cooled are arranged one-to-one with multiple mounting plates 12. In this embodiment, the components to be cooled and the mounting plates are connected by brazing or friction welding. When the components to be cooled generate heat during operation, the heat of the components is transferred to the multiple heat dissipation columns 11 through the plate body 2. At this time, by supplying water into the water inlet pipe 21, the cooling water carries away the heat through the multiple heat dissipation columns 11 and is discharged along the water outlet pipe 22, thereby realizing the heat dissipation of the components to be cooled and improving the heat dissipation effect of the components to be cooled.

[0056] Example 3:

[0057] A heat sink manufacturing process includes:

[0058] The heat sink described in Example 1 was processed using a tooth-shaving machine, combined with... Figure 6 and Figure 7 The scraper blade 3 of the tooth-shaving machine is adjusted to have an angle of 13°-17° with the connecting plate 121. The angle is calculated based on the thickness of the heat dissipation column 11 and the spacing between adjacent heat dissipation columns 11. In this embodiment, the lower scraper end of the scraper blade 3 includes an upper wall 31 and a lower wall 32 connected to the upper wall 31. The angle between the lower wall 32 of the scraper blade 3 and the connecting plate 121 is adjusted to 13°-17°, and the angle between the upper wall 31 and the lower wall 32 of the scraper blade 3 is set to 45 degrees. The scraper, driven by a toothed scraper, moves the scraper 3 downwards, creating a row of protrusions 33 on the connecting plate 121. As the scraper 3 rises, it flips the protrusions 33, controlling the angle between the protrusions 33 and the connecting plate 121. This angle is controlled to 65 degrees, which is the same angle between the heat dissipation column 11 and the connecting plate 121. The scraper moves downwards along the width of the connecting plate 121, creating multiple rows of protrusions 33. Figure 6 The leftmost side of the connecting plate 121 is shoveled down towards the rightmost side. When the shovel 3 is shoveling down, it is at a certain angle, which forms the first connecting block 118 as described in Embodiment 1.

[0059] Combination Figure 8 and Figure 9At this point, the connecting plate 121 is rotated 90 degrees horizontally, causing the scraper 3 of the tooth-scraping machine to also scrape downwards at an angle of 13°-17°. The angle is calculated based on the thickness of the heat dissipation column 11 and the spacing between adjacent heat dissipation columns 11, so that the scraper 3 simultaneously scrapes and cuts multiple rows of protrusions 33. The scraper 3 scrapes and cuts multiple heat dissipation columns 11 by multiple rows of protrusions 33. By driving the scraper 3 of the tooth-scraping machine to scrape and cut along the length of the protrusions 33 sequentially, the scraper 3 scrapes and cuts multiple rows of protrusions 33 to form multiple rows of heat dissipation columns 11. The scraper 3 scrapes downwards... During cutting, the heat dissipation column 11 will be driven to form a slow surface 111. Because the scraper 3 has a certain angle when it scrapes down, the scraper 3 forms the second connecting block 119 as described in Embodiment 1 when it scrapes down. When the scraper 3 is lifted, because the cross-section of the scraper 3 at the lower end is pointed, the scraper 3 will form a curved part 116 at the bottom edge of the first guide surface 114 after it is lifted. When the scraper 3 is lifted, it drives multiple heat dissipation columns 11 to be lifted, and drives the first guide surface 114 and the second guide surface 115 to be perpendicular to the connecting plate 121, thereby realizing the processing of the heat sink.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat sink, characterized in that: It includes a base plate (1) and a plurality of heat dissipation columns (11) disposed on the base plate (1). The heat dissipation column (11) includes a top surface. The top surface is set as an inclined deceleration surface (111) for receiving cooling water and slowing down the cooling water. The deceleration surface (111) is generally quadrilateral. The heat dissipation column (11) includes a water-facing surface (112), a backwater surface (113), a first flow guide surface (114), and a second flow guide surface (115). The first flow guide surface (114) is disposed between the water-facing surface (112) and the backwater surface (113) and is located on one side of the water-facing surface (112) and the backwater surface (113). The second flow guide surface (115) is disposed between the water-facing surface (112) and the backwater surface (113) and is located on the other side of the water-facing surface (112) and the backwater surface (113). The water-facing surface (112) and the backwater surface (113) have the same width. The first flow guide surface (114) and the second flow guide surface (115) have the same width. The width of the water-facing surface (112) is smaller than the width of the first flow guide surface (114). The quadrilateral retardation surface (111) includes four vertices, one of which is located on the side where the upstream surface (112) and the second guide surface (115) intersect; another vertex of the quadrilateral retardation surface (111) is located on the side where the downstream surface (113) and the first guide surface (114) intersect; the height of the vertex of the quadrilateral retardation surface (111) located on the side where the upstream surface (112) and the second guide surface (115) intersect is lower than the height of the vertex located on the side where the downstream surface (113) and the first guide surface (114) intersect.

2. A heat sink according to claim 1, characterized in that: One end of the heat dissipation column (11) is fixedly mounted on the base plate (1), and the other end is inclined along the direction from the water-facing surface (112) toward the water-repellent surface (113).

3. A heat sink according to claim 2, characterized in that: The acute angles formed between the plane containing the water-facing surface (112) and the bottom plate (1), and between the plane containing the water-returning surface (113) and the bottom plate (1), are all set to 65 degrees.

4. A heat sink according to claim 1, characterized in that: A connecting block is provided between the water-facing surface (112) and the bottom plate (1) and between the second flow guiding surface (115) and the bottom plate (1). The connecting block extends away from the water-facing surface (112) and the second flow guiding surface (115).

5. A chip heat sink, characterized in that: The chip heat sink includes a heat sink as described in any one of claims 1-4. The heat sink includes a plate (2) and a plurality of heat-dissipating components disposed on the plate (2). The plate (2) is hollow in general. A water inlet pipe (21) and a water outlet pipe (22) are disposed on the plate (2) and on both sides of the plate (2) in communication with the hollow plate (2). A plurality of mounting ports (23) are provided on the plate (2). A plurality of base plates (1) are fixedly disposed in the mounting ports (23) one by one. A plurality of heat dissipation columns (11) are located in the hollow plate (2). A plurality of heat-dissipating components are disposed in correspondence with a plurality of base plates (1).

6. A heat sink processing technology, characterized in that: include: The heat sink described in any one of claims 1-4 is processed using a tooth-shaving machine. The tooth-shaving machine's blade (3) is adjusted to an angle of 13°-17° with the base plate (1). The tooth-shaving machine drives the blade (3) to shave down, so that the blade (3) shaves out a row of protrusions (33) on the base plate (1). The blade (3) rises, causing the protrusions (33) to flip up. The angle between the protrusions (33) and the base plate (1) is controlled. The blade shaves down sequentially along the width direction of the base plate (1), so that the tooth-shaving machine's blade (3) shaves out multiple rows of protrusions (33). At this time, the base plate (1) is rotated 90 degrees in the horizontal direction, driving the tooth-shaving machine. The scraper (3) also scrapes down at an angle of 13°-17°, so that the scraper (3) cuts down on multiple rows of protrusions (33) at the same time. The scraper (3) cuts down on multiple rows of protrusions (33) to form multiple heat dissipation columns (11). By driving the scraper (3) of the scraper machine to cut down along the length direction of the protrusions (33) in sequence, the scraper (3) cuts down on multiple rows of protrusions (33) to form multiple rows of heat dissipation columns (11). When the scraper (3) cuts down, it will drive the heat dissipation columns (11) to form a slow surface (111). When the scraper (3) is lifted up, it will drive multiple heat dissipation columns (11) to be lifted up, so as to realize the processing of heat sink.

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