Cooling fin connecting structure

Abstract

The utility model discloses a cooling fin connecting structure, and belongs to the field of cooling fins, the cooling fin connecting structure comprises a bottom plate, two symmetrically distributed mounting plates are fixedly mounted on each of two sides of the bottom plate, through holes are formed in the surfaces of the mounting plates, and cooling fin bodies distributed in a linear array are slidably mounted at the top end of the bottom plate. Sliding blocks are fixedly installed at the bottom ends of the cooling fin bodies, sliding grooves matched with the sliding blocks are formed in the top end of the bottom plate, stabilizing assemblies are arranged between the cooling fin bodies, and limiting frames and supporting blocks which are symmetrically distributed are fixedly installed on one side of the bottom plate. Through cooperation of the sliding block, the sliding groove and the positioning assembly, the cooling fin body is positioned and fixed, through cooperation of the baffle and the fixing assembly, the sliding block is limited and positioned, then the cooling fin body is fixed, a worker can conveniently replace the damaged cooling fin body subsequently, an equipment assembly does not need to be replaced, and the working efficiency is improved. And the waste of materials is reduced.

Description

Technical Field

[0001] This application relates to the field of heat sinks, and more specifically, to a heat sink connection structure. Background Technology

[0002] A heat sink is a device used to dissipate heat from electronic components in electrical appliances. They are typically made of aluminum alloy, brass, or bronze, and can be plate-shaped, sheet-shaped, or multi-sheet-shaped. For example, the CPU in a computer requires a fairly large heat sink, and heat sinks are used for power transistors, horizontal output transistors, and power amplifier transistors in a television. Generally, a layer of thermal grease is applied to the contact surface between the electronic component and the heat sink during use, allowing the heat generated by the component to be more effectively conducted to the heat sink and then dissipated into the surrounding air. In the field of electronic engineering design, heat sinks are classified as "passive heat dissipation components." Common materials used for heat sinks include all-aluminum, all-copper, half-copper and half-aluminum, and copper-plated.

[0003] Existing heatsinks are assembled by welding them to a base plate. After prolonged use, the surface of the heatsink fins easily accumulates a large amount of dust, requiring cleaning. Furthermore, the heatsinks are relatively soft despite their rigidity, making them easily deformed under pressure. When multiple heatsinks are damaged, the entire heatsink assembly must be replaced, rather than individual heatsinks, resulting in material waste. Therefore, to solve these problems, we propose a heatsink connection structure. Utility Model Content

[0004] To address the aforementioned problems, this application provides a heat sink connection structure, employing the following technical solution:

[0005] A heat sink connection structure includes a base plate. Two symmetrically distributed mounting plates are fixedly installed on both sides of the base plate, and through holes are formed on the surface of each mounting plate. Heat sink bodies arranged in a linear array are slidably installed on the top of the base plate, and sliders are fixedly installed on the bottom ends of each heat sink body. A sliding groove matching the slider is formed on the top of the base plate. A stabilizing component is provided between the heat sink bodies. A symmetrically distributed limiting frame and support block are fixedly installed on one side of the base plate. A baffle is slidably installed in the limiting frame. Movable grooves are formed on both inner walls of the sliding grooves near the baffle, and positioning components are provided in each movable groove. A locking block is fixedly installed on the side of the baffle near the support block, and a locking groove matching the locking block is formed on the side of the support block near the baffle. A storage groove is formed on the inner wall of the bottom end of the limiting frame, and a fixing component is provided in the storage groove.

[0006] By adopting the above technical solution, when using this product, the operator places the slider installed at the bottom of the heat sink body into the groove opened at the top of the base plate. The engagement of the slider and the groove serves to limit the heat sink body. The groove also contains a positioning component to position and fix the slider, thereby securing the heat sink body. After the heat sink body is placed, a stabilizing component passes through each heat sink body to support and stabilize it, helping to maintain the stability of the heat sink body installation. After the heat sink body is positioned, the operator passes a baffle through the limiting frame, causing the locking block installed at the end of the baffle to engage with the locking mechanism. The slots on opposite sides of the support block engage, and the sidewalls of the support block are fitted with rubber sleeves to increase friction between the support block and the slots, thereby improving the stability of the baffle installation. A fixing component is located within the limiting frame to further secure the baffle. The inner side of the baffle contacts the opposite side of the multiple sliders, preventing them from sliding out of the grooves, thus improving the stability of the heat sink body installation. The heat sink body slides onto the base plate, facilitating subsequent disassembly and cleaning. Furthermore, if a heat sink body is damaged, only the damaged heat sink body needs to be replaced, eliminating the need to replace the entire product and reducing material waste.

[0007] Furthermore, the stabilizing component includes two stabilizing rods disposed between the heat sink bodies. The two stabilizing rods are symmetrically distributed between the heat sink bodies. The surface of the heat sink body has mounting holes that match the stabilizing rods. Two symmetrically distributed sleeves are provided between each pair of adjacent heat sink bodies. The sleeves in the same group are slidably fitted onto the sidewalls of the stabilizing rods in the same group. The sidewalls at both ends of the two stabilizing rods are threaded, and the sidewalls at both ends of the two stabilizing rods are fitted with washers. The sidewalls at both ends of the two stabilizing rods are threaded with nuts.

[0008] By adopting the above technical solution, after the heat sink body is installed on the base plate, the worker inserts the stabilizing rod through the mounting hole opened on the side wall of the heat sink body, and places the sleeve between two adjacent heat sink bodies, so that the stabilizing rod passes through the sleeve. The sleeve can prevent the heat sink body from being squeezed or contacted due to other reasons, and can also provide support and stability. Then, the worker repeats the above operation. After the stabilizing rod passes through all the heat sink bodies, the worker puts the washer on the side wall of both ends of the stabilizing rod, and then screws the nut into the thread opened on the side wall of both ends of the stabilizing rod to fix the stabilizing rod. The washer can also protect the heat sink body and help increase the tightening force of the nut. The setting of the stabilizing rod and the sleeve can support and stabilize the heat sink body.

[0009] Furthermore, the positioning component includes a positioning rod slidably installed in the movable groove. A first spring is fixedly connected between the opposite ends of the two positioning rods in the same group and the inner wall of the movable groove on the opposite side of the same group. Positioning grooves matching the positioning rods on the same side are opened on both sides of the slider near the baffle.

[0010] By adopting the above technical solution, when the slider moves into the slide groove, the slider pushes the positioning rod to slide into the same group of movable grooves, and the positioning rod pushes the first spring of the same group to retract. When the slider and the slide groove are completely engaged, the positioning rod returns to its original position under the elastic force of the first spring of the same group, and the positioning rod engages with the positioning groove opened on the opposite side of the slider, which can play the role of positioning and fixing the slider, and thus play the role of positioning and fixing the heat sink body.

[0011] Furthermore, two symmetrically distributed stabilizing blocks are fixedly installed on the opposite sidewalls of the two positioning rods in the same group, and the inner wall of the movable groove is provided with a stabilizing groove that matches the stabilizing blocks in the same group.

[0012] By adopting the above technical solution, when the positioning rod slides in the movable groove, the positioning rod slides in the stabilizing groove with the stabilizing block. The matching of the stabilizing block and the stabilizing groove helps to prevent the positioning rod from leaving the movable groove and helps to maintain the stability of the positioning rod sliding.

[0013] Furthermore, the fixing component includes a fixing block that is slidably installed in the storage slot. A second spring is fixedly connected between the bottom end of the fixing block and the inner wall of the bottom end of the storage slot. A fixing groove matching the fixing block is opened at the bottom of the baffle away from the support block. A toggle rod is fixedly installed at the bottom of the fixing block away from the bottom plate, and the toggle rod slides through the storage slot at the end away from the fixing block.

[0014] By adopting the above technical solution, when the baffle slides within the limiting frame, the baffle pushes the fixing block to slide into the storage slot, and the fixing block pushes the second spring to retract. When the baffle moves to the corresponding position, the fixing block moves upward under the elastic force of the second spring, and the end of the fixing block engages with the fixing slot opened at the bottom of the baffle, thus fixing the baffle. When it is necessary to remove the baffle, the operator only needs to pull the fixing block towards the bottom of the storage slot by using the lever to disengage the fixing block from the fixing slot opened at the bottom of the baffle, and then the baffle can be pulled out to remove the baffle.

[0015] Furthermore, a balance block is fixedly installed on both sides of the bottom end of the fixing block, and a groove matching the balance block is opened on the inner wall of the storage groove.

[0016] By adopting the above technical solution, when the fixed block slides in the storage groove, the fixed block, along with the balance block, slides in the groove on the same side. The matching of the balance block and the groove helps to prevent the fixed block from leaving the storage groove and helps to maintain the stability of the fixed block's sliding.

[0017] Furthermore, two symmetrically distributed limiting blocks are fixedly installed at the bottom of the heat sink body, and a limiting groove matching the limiting blocks is opened at the top of the base plate. An insert block is fixedly installed at the end of the slider away from the baffle, and a slot matching the insert block in the same group is opened on the inner wall of the slide groove away from the baffle.

[0018] By adopting the above technical solution, the bottom of the heat sink body is equipped with a limiting block device, which makes the limiting block engage with the limiting groove opened at the top of the base plate, thereby playing a role in positioning and stabilizing the heat sink body and helping to maintain the balance of the heat sink body installation. Furthermore, the slider end is equipped with an insert block, which engages with the slot opened in the inner wall of the slide groove, thereby playing a role in positioning and fixing the slider, and thus playing a role in positioning and fixing the heat sink body.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] (1) In this application, the cooperation of the slider, the groove and the positioning component plays the role of positioning and fixing the heat sink body, and the cooperation of the baffle and the fixing component plays the role of limiting the positioning slider, thereby playing the role of fixing the heat sink body. It also makes it convenient for staff to replace the damaged heat sink body in the future without replacing the equipment assembly, thus reducing the waste of materials.

[0021] (2) In this application, the setting of the stabilizing component plays a role in supporting and stabilizing the heat sink body, which helps to prevent adjacent heat sink bodies from contacting due to compression and deformation, thereby achieving the effect of protecting the heat sink body.

[0022] (3) In this application, the limiting block and the limiting groove opened at the top of the base plate are engaged to further support and stabilize the heat sink body, which is conducive to maintaining the balance of the heat sink body installation. Attached Figure Description

[0023] Figure 1 A schematic diagram of a heat sink connection structure from a first-view perspective;

[0024] Figure 2 For this application Figure 1 Enlarged view of A in the middle;

[0025] Figure 3 This is a structural diagram from a second perspective of this application;

[0026] Figure 4 For this application Figure 3Enlarged view of B in the middle;

[0027] Figure 5 This is a cross-sectional view of this application;

[0028] Figure 6 For this application Figure 5 Enlarged view of C;

[0029] Figure 7 This is a cross-sectional view of the limiting frame in this application;

[0030] Figure 8 For this application Figure 7 Enlarged view of D;

[0031] Figure 9 This is a structural unfolded diagram of this application.

[0032] Explanation of the labels in the diagram:

[0033] 1. Base plate; 2. Heat sink body; 3. Stabilizing rod; 4. Sleeve; 5. Mounting hole; 6. Baffle; 7. Limiting frame; 8. Mounting plate; 9. Gasket; 10. Nut; 11. Support block; 12. Slider; 13. Limiting block; 14. Locking block; 15. Locking groove; 16. Insertion block; 17. First spring; 18. Positioning rod; 19. Movable groove; 20. Storage groove; 21. Second spring; 22. Fixing block; 23. Slide groove. Detailed Implementation

[0034] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0038] Please see Figure 1-9 A heat sink connection structure includes a base plate 1. Two symmetrically distributed mounting plates 8 are fixedly installed on both sides of the base plate 1, and each mounting plate 8 has through holes on its surface. Heat sink bodies 2 arranged in a linear array are slidably installed on the top of the base plate 1, and sliders 12 are fixedly installed on the bottom of each heat sink body 2. A sliding groove 23 matching the slider 12 is provided on the top of the base plate 1. A symmetrically distributed limiting frame 7 and support block 11 are fixedly installed on one side of the base plate 1. A baffle 6 is slidably installed inside the limiting frame 7. Movable grooves 19 are provided on the inner walls of both sides of the sliding groove 23 near the baffle 6. Two... The limiting blocks 13 are symmetrically distributed. The top of the base plate 1 has a limiting groove that matches the limiting block 13. The slider 12 is fixedly installed with a plug 16 at the end away from the baffle 6. The inner wall of the slide groove 23 away from the baffle 6 has a slot that matches the plug 16 in the same group. The movable groove 19 is provided with a positioning component. The positioning component includes a positioning rod 18 that is slidably installed in the movable groove 19. The two positioning rods 18 in the same group are fixedly connected to the inner wall of the opposite side of the movable groove 19 in the same group with a first spring 17. The slider 12 is provided with positioning grooves on both sides of the end near the baffle 6 that match the positioning rod 18 on the same side.

[0039] When using this product, the operator places the slider 12, which is mounted on the bottom of the heat sink body 2, into the groove 23 opened at the top of the base plate 1. The engagement of the slider 12 and the groove 23 secures the heat sink body 2. Furthermore, the bottom of the heat sink body 2 is secured by a limiting block 13, which engages with the limiting groove opened at the top of the base plate 1, thus stabilizing the heat sink body 2 and maintaining its balance. Additionally, the end of the slider 12 is secured by an insert 16, which engages with a slot on the inner wall of the groove 23. The slider 12 is further positioned and fixed, thereby positioning and fixing the heat sink body 2. When the slider 12 moves into the slide groove 23, the slider 12 pushes the positioning rod 18 to slide into the movable groove 19 of the same group, and the positioning rod 18 pushes the first spring 17 of the same group to retract. When the slider 12 and the slide groove 23 are completely engaged, the positioning rod 18 returns to its original position under the elastic force of the first spring 17 of the same group, and the positioning rod 18 engages with the positioning groove opened on the opposite side of the slider 12, thus positioning and fixing the slider 12, thereby positioning and fixing the heat sink body 2.

[0040] Two symmetrically distributed stabilizing blocks are fixedly installed on the opposite side walls of the two positioning rods 18 in the same group. The inner wall of the movable groove 19 is provided with a stabilizing groove that matches the stabilizing blocks in the same group. When the positioning rod 18 slides in the movable groove 19, the positioning rod 18 slides in the stabilizing groove with the stabilizing block. The matching of the stabilizing block and the stabilizing groove helps to prevent the positioning rod 18 from falling out of the movable groove 19 and helps to maintain the stability of the sliding of the positioning rod 18.

[0041] A locking block 14 is fixedly installed on the side of the baffle 6 near the support block 11, and a locking groove 15 matching the locking block 14 is opened on the side of the support block 11 near the baffle 6. A storage groove 20 is opened on the inner wall of the bottom end of the limiting frame 7, and a fixing component is provided in the storage groove 20. The fixing component includes a fixing block 22 that is slidably installed in the storage groove 20. A second spring 21 is fixedly connected between the bottom end of the fixing block 22 and the inner wall of the bottom end of the storage groove 20. A fixing groove matching the fixing block 22 is opened on the bottom of the section of the baffle 6 away from the support block 11. A toggle rod is fixedly installed on the bottom of the side of the fixing block 22 away from the bottom plate 1, and the end of the toggle rod away from the fixing block 22 slides through the storage groove 20.

[0042] After the heat sink body 2 is positioned, the operator passes the baffle 6 through the limiting frame 7, thereby engaging the locking block 14 installed at the end of the baffle 6 with the locking groove 15 on the opposite side of the support block 11. The side wall of the locking block 14 is fitted with a rubber sleeve, which helps to increase the friction between the locking block 14 and the locking groove 15, thereby improving the stability of the baffle 6 installation. When the baffle 6 slides within the limiting frame 7, the baffle 6 pushes the fixing block 22 to slide into the receiving groove 20, and the fixing block 22 pushes the second spring 21 to retract. When the baffle 6 moves to the corresponding position, the fixing block 22 moves upward under the elastic force of the second spring 21, and the end of the fixing block 22 engages with the fixing groove at the bottom of the baffle 6, thus fixing the baffle 6. When it is necessary to remove the baffle 6, the operator only needs to pull the fixing block 22 towards the bottom of the receiving groove 20 by using the lever, so that the fixing block 22 disengages from the fixing groove at the bottom of the baffle 6, and then the baffle 6 can be pulled out to remove the baffle 6.

[0043] Balance blocks are fixedly installed on both sides of the bottom end of the fixing block 22. The inner wall of the storage groove 20 is provided with a groove that matches the balance block. When the fixing block 22 slides in the storage groove 20, the fixing block 22 slides in the groove on the same side with the balance block. The matching of the balance block and the groove helps to prevent the fixing block 22 from falling out of the storage groove 20 and helps to maintain the stability of the sliding of the fixing block 22.

[0044] A stabilizing assembly is provided between the heat sink bodies 2. The stabilizing assembly includes two stabilizing rods 3 positioned between the heat sink bodies 2. The two stabilizing rods 3 are symmetrically distributed between the heat sink bodies 2. The surface of the heat sink body 2 has mounting holes 5 that match the stabilizing rods 3. Two symmetrically distributed sleeves 4 are provided between each pair of adjacent heat sink bodies 2. The sleeves 4 in the same group are slidably fitted onto the sidewalls of the same group of stabilizing rods 3. Both ends of the sidewalls of the two stabilizing rods 3 have threads, and both ends of the sidewalls of the two stabilizing rods 3 are fitted with washers 9. Both ends of the sidewalls of the two stabilizing rods 3 are threaded with nuts 10. After the heat sink bodies 2 are installed on the base plate 1, the operator passes the stabilizing rods 3 through the mounting holes 5 on the sidewalls of the heat sink bodies 2. The operator places the sleeve 4 between two adjacent heat sink bodies 2, allowing the stabilizing rod 3 to pass through the sleeve 4. The sleeve 4 serves to prevent the heat sink bodies 2 from being squeezed or contacted due to other reasons, and also provides support and stability. The operator then repeats the above operation. After the stabilizing rod 3 passes through all the heat sink bodies 2, the operator places the gasket 9 on the side walls at both ends of the stabilizing rod 3. Then, the nut 10 is screwed into the threaded part on the side walls at both ends of the stabilizing rod 3 to fix the stabilizing rod 3. The gasket 9 also serves to protect the heat sink bodies 2 and increases the tightening force of the nut 10. The stabilizing rod 3 and the sleeve 4 together provide support and stability for the heat sink bodies 2.

[0045] The implementation principle of this application embodiment is as follows: When using this product, the operator places the slider 12 installed at the bottom of the heat sink body 2 into the groove 23 opened at the top of the base plate 1. The engagement of the slider 12 and the groove 23 can limit the heat sink body 2. The groove 23 is provided with a positioning component, which can position and fix the slider 12, thereby fixing the heat sink body 2. After the heat sink body 2 is placed, the stabilizing component passes through each heat sink body 2 to support and stabilize the heat sink body 2, which helps to maintain the stability of the heat sink body 2 installation. After the heat sink body 2 is limited, the operator passes the baffle 6 through the limiting frame 7, thereby causing the locking block 14 installed at the end of the baffle 6 to... The slot 15 on the opposite side of the support block 11 engages with the block 14, and the side wall of the block 14 is fitted with a rubber sleeve, which helps to increase the friction between the block 14 and the slot 15, thereby improving the stability of the baffle 6 installation. The limiting frame 7 is equipped with a fixing component, which further fixes the baffle 6. The inner side of the baffle 6 contacts the opposite side of the multiple sliders 12, which can prevent the sliders 12 from sliding out of the slide groove 23, thereby improving the stability of the heat sink body 2 installation. The heat sink body 2 is slidably installed on the base plate 1, which is convenient for workers to disassemble and clean later. When there is a damaged heat sink body 2, only the damaged heat sink body 2 needs to be replaced, without replacing the entire product, which helps to reduce material waste.

[0046] 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 connection structure, comprising a base plate (1), characterized in that: Two symmetrically distributed mounting plates (8) are fixedly mounted on both sides of the base plate (1), and through holes are provided on the surfaces of the mounting plates (8). The top end of the base plate (1) is slidably mounted with heat sink bodies (2) distributed in a linear array, and the bottom ends of the heat sink bodies (2) are fixedly mounted with sliders (12). The top end of the base plate (1) is provided with sliding grooves (23) matching the sliders (12). A stabilizing component is provided between the heat sink bodies (2), and one side of the base plate (1) is fixedly mounted with symmetrically distributed limiting frames (7) and support blocks ( 11), a baffle (6) is slidably installed in the limit frame (7), movable grooves (19) are provided on the inner walls of both sides of the slide groove (23) close to one end of the baffle (6), and positioning components are provided in the movable grooves (19), a clamping block (14) is fixedly installed on the side of the baffle (6) close to the support block (11), and a clamping groove (15) matching the clamping block (14) is provided on the side of the support block (11) close to the baffle (6), a receiving groove (20) is provided on the inner wall of the bottom end of the limit frame (7), and a fixing component is provided in the receiving groove (20).

2. A heat sink connection structure according to claim 1, characterized in that: The stabilizing component comprises two stabilizing rods (3) arranged between the heat sink bodies (2), the two stabilizing rods (3) are symmetrically distributed between the heat sink bodies (2), the surface of the heat sink bodies (2) is provided with mounting holes (5) matching the stabilizing rods (3), two symmetrically distributed sleeves (4) are arranged between two adjacent heat sink bodies (2), the sleeves (4) in the same group are slidably sleeved on the side walls of the stabilizing rods (3) in the same group, the side walls at both ends of the two stabilizing rods (3) are provided with threaded teeth, and the side walls at both ends of the two stabilizing rods (3) are sleeved with gaskets (9), and the side walls at both ends of the two stabilizing rods (3) are threadedly connected with nuts (10).

3. The heat sink connection structure according to claim 1, characterized in that: The positioning assembly comprises a positioning rod (18) slidably mounted in a movable groove (19); a first spring (17) is fixedly connected between opposite sections of two positioning rods (18) in the same group and the inner wall on the side opposite to the movable groove (19) in the same group; and positioning grooves matching the positioning rods (18) on the same side are provided on both sides of one end of the slider (12) close to the baffle (6).

4. A heat sink connection structure according to claim 3, characterized in that: Two symmetrically distributed stabilizing blocks are fixedly mounted on the side walls at opposite ends of the two positioning rods (18) in the same group, and the inner wall of the movable groove (19) is provided with a stabilizing groove matching the stabilizing blocks in the same group.

5. The heat sink connection structure according to claim 1, characterized in that: The fixing assembly comprises a fixing block (22) slidably mounted in the receiving groove (20); a second spring (21) is fixedly connected between the bottom end of the fixing block (22) and the inner wall of the bottom end of the receiving groove (20); a fixing groove matching the fixing block (22) is provided at the bottom of a section of the baffle (6) away from the support block (11); a toggle rod is fixedly mounted at the bottom of a side of the fixing block (22) away from the bottom plate (1); and an end of the toggle rod away from the fixing block (22) slides through the receiving groove (20).

6. The heat sink connection structure according to claim 5, characterized in that: Balance blocks are fixedly mounted on both sides of the bottom end of the fixed block (22), and grooves matching the balance blocks are formed on the inner wall of the storage groove (20).

7. The heat sink connection structure according to claim 1, characterized in that: Two symmetrically distributed limit blocks (13) are fixedly mounted on the bottom end of the heat sink body (2); a limit groove matching the limit block (13) is provided on the top end of the bottom plate (1); an insert block (16) is fixedly mounted on one end of the slider (12) away from the baffle (6); and a slot matching the insert block (16) of the same group is provided on the inner wall of the slide groove (23) on the side away from the baffle (6).

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