A locking structure for a radiator

By designing a locking structure with a limiting sleeve and threaded connection on the heat sink, the problem of chip damage caused by shaking during transportation and testing was solved, achieving stable fixation of the heat sink and improving reliability.

CN224290438UActive Publication Date: 2026-05-26VAST GLORY ELECTRONIC & HARDWARE & PLASTIC (HUI ZHOU) LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
VAST GLORY ELECTRONIC & HARDWARE & PLASTIC (HUI ZHOU) LTD
Filing Date
2025-05-29
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing chips, when fixed by screw and spring assemblies, lack protection, making them prone to shaking during transportation and testing, causing damage and reducing reliability.

Method used

A locking structure for a radiator is designed, including a limiting sleeve, a limiting rod, a first screw, a second screw, a rectangular block, and a through hole. The radiator body is fixed by the locking assembly to prevent shaking, and the stability is ensured by riveting and threaded connection.

Benefits of technology

It effectively prevents the heat sink from shaking during transportation and testing, protects the chip, and improves reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224290438U_ABST
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Abstract

This utility model discloses a locking structure for a heat sink, relating to the field of heat sinks. It includes a heat sink body, with a locking assembly installed on the top of the heat sink body. The locking assembly includes a limiting sleeve, a limiting rod, a first screw, a second screw, a rectangular block, and a through hole. The locking assembly is installed on the top of the heat sink body to fix it in place, preventing chip damage caused by the heat sink body shaking during transportation. The limiting sleeve is provided on the top of the heat sink body. The limiting sleeve is riveted to the top of the heat sink body. The rectangular block is fitted onto the outer wall of the first screw, located inside a limiting groove. A nut is then fitted onto the outer wall of the limiting sleeve to limit the rectangular block. The first and second screws secure the structure, preventing the heat sink from shaking during transportation or testing, thus preventing chip damage.
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Description

Technical Field

[0001] This utility model relates to the field of radiators, specifically a locking structure for radiators. Background Technology

[0002] A heat sink is a device used to dissipate heat and reduce the temperature of equipment. It is widely used in many fields such as electronics, automobiles, and industry. It mainly dissipates heat by making close contact with the heat-generating components, transferring heat from the heat-generating components to the heat sink through thermal conduction, or by carrying away the heat on the surface of the heat sink through the flow of air or other cooling media. It is combined with different products according to the user's needs.

[0003] The pursuit of miniaturization, high speed, and high reliability in electronic products has driven the continuous development of MCM technology. Traditional packaged components are often several times larger than chip size, thus failing to achieve the goal of highly integrated systems. MCM technology has achieved rapid development and application by directly introducing bare chips with the smallest original chip size. In addition, the direct use of bare chips reduces interconnection, greatly improving system speed, and allowing direct connection between the chip and the heat sink.

[0004] Existing chips are secured with screws and springs, but the lack of encapsulation makes them relatively fragile and unable to withstand much force. Shaking during transportation or testing can damage the chips, and external forces can cause them to crack, reducing their reliability. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a locking structure for a radiator to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a locking structure for a heat sink, comprising a heat sink body, a locking assembly installed on the top of the heat sink body, the locking assembly comprising a limiting sleeve, a limiting rod, a first screw, a second screw, a rectangular block, and a through hole, the locking assembly being installed on the top of the heat sink body to fix the heat sink body, thereby preventing the heat sink body from shaking and causing chip damage during transportation. The top of the heat sink body is provided with a limiting sleeve, and the two ends of the limiting sleeve are respectively provided with a limiting groove and a sliding groove. The limiting rod is movably installed inside the limiting sleeve, and a fixing block is fixed to the end of the limiting rod. The bottom of the fixing block is fixed with a first screw, and the end of the limiting rod is fixed with a second screw, and a rectangular block is sleeved on the outer wall of the second screw.

[0007] Preferably, the limiting sleeve is fixed to the top of the heat sink body by riveting, the rectangular block is sleeved on the outer wall of the first screw, the rectangular block is located inside the limiting groove, and then the nut is sleeved on the outer wall of the limiting sleeve to complete the limiting of the rectangular block. The first screw and the second screw can be used to fix it, so that the heat sink will not shake during transportation or testing, which would cause the chip to be damaged.

[0008] The present invention is further configured such that the end of the limiting sleeve is connected to a nut by a thread, and the top of the nut is provided with a through hole.

[0009] Preferably, the rectangular block can be limited by the nut, so that the rectangular block will not come out of the limiting groove.

[0010] The present invention is further configured such that the cross-section of the rectangular block is rectangular, and the diameter of the rectangular block is smaller than the diameter of the inner wall of the limiting groove.

[0011] Preferably, the rectangular block can be located inside the limiting groove, and the limiting groove can limit the rectangular block, thereby preventing the rectangular block from rotating.

[0012] The present invention is further configured such that a fixing rod is fixed to the end of the second screw, and the cross-section of the fixing rod is polygonal.

[0013] Preferably, the fixed rod allows personnel to easily pick up the second screw, avoiding damage to the external threads of the second screw.

[0014] The present invention is further configured such that a movable groove is formed inside the limiting sleeve, and the diameter of the inner wall of the movable groove is larger than the diameter of the second screw.

[0015] Preferably, the movable slot allows the second screw to pass through easily, avoiding jamming.

[0016] The present invention is further configured such that the limiting sleeve is connected to the heat sink body by riveting.

[0017] Preferably, the limiting sleeve is fixed to the radiator body by riveting.

[0018] The present invention is further provided that the outer wall of the limiting sleeve is provided with an observation hole.

[0019] Preferably, the installation status of the first screw and whether it is securely fixed can be easily observed through the observation hole.

[0020] The present invention is further configured such that the number of locking components is any one of two, three, or four sets.

[0021] Preferably, two sets of locking components are distributed at the diagonal corners of the radiator body, three sets of locking components are distributed at the triangular corners of the radiator body, and four sets of locking components are distributed at the four corners of the radiator body, so that the radiator body can be fixed.

[0022] In summary, the present invention has the following main advantages:

[0023] This utility model features a locking assembly. The limiting sleeve is riveted to the top of the heat sink body. A rectangular block is fitted onto the outer wall of the first screw and is located inside the limiting groove. Then, a nut is fitted onto the outer wall of the limiting sleeve to limit the rectangular block. The first and second screws can achieve fixation, preventing the heat sink from shaking during transportation or testing, which could damage the chip. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram showing the connection between the limiting sleeve and the nut of this utility model;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 This is a schematic diagram showing the disassembled positioning component of this utility model;

[0028] Figure 5 This is a perspective view of the nut of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Radiator body; 2. Limiting sleeve; 3. Limiting groove; 4. Nut; 5. Limiting rod; 6. Fixing block; 7. First screw; 8. Second screw; 9. Rectangular block; 10. Fixing rod; 11. Through hole; 12. Sliding groove; 13. Observation hole; 14. Moving groove. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] Please see Figures 1-5The device includes a heat sink body 1. A locking assembly is installed on the top of the heat sink body 1. The locking assembly includes a limiting sleeve 2, a limiting rod 5, a first screw 7, a second screw 8, a rectangular block 9, and a through hole 11. The locking assembly is installed on the top of the heat sink body 1 to fix the heat sink body 1 and prevent the heat sink body 1 from shaking and causing chip damage during transportation. The limiting sleeve 2 is provided on the top of the heat sink body 1. The limiting sleeve 2 has a limiting groove 3 and a sliding groove 12 respectively opened at both ends. The limiting rod 5 is movably installed inside the limiting sleeve 2. The end of the limiting rod 5 is fixed with a fixing block 6. The bottom of the fixing block 6 is fixed with the first screw 7. The end of the limiting rod 5 is fixed with the second screw 8. The outer wall of the second screw 8 is fitted with a rectangular block 9. The rectangular block 9 fits on the outer wall of the second screw 8, thereby limiting the limiting rod 5 so that the limiting rod 5 will not easily rotate without the action of external force. The nut 4 further limits the rectangular block 9 to prevent the rectangular block 9 from dislodging from the inside of the limiting groove 3.

[0034] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 and Figure 4 The end of the limiting sleeve 2 is connected to the nut 4 by a thread, and the top of the nut 4 is provided with a through hole 11. The nut 4 can limit the rectangular block 9 so that the rectangular block 9 will not come out of the interior of the limiting groove 3.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 and Figure 4 The cross-section of the rectangular block 9 is set to be rectangular, and the diameter of the rectangular block 9 is smaller than the diameter of the inner wall of the limiting groove 3. The rectangular block 9 can be located inside the limiting groove 3. The limiting groove 3 limits the rectangular block 9, thereby preventing the rectangular block 9 from rotating.

[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The end of the second screw 8 is fixed with a fixing rod 10, and the cross section of the fixing rod 10 is set as a polygon. The fixing rod 10 makes it easy for personnel to pick up the second screw 8 and avoid damage to the external threads of the second screw 8.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The limiting sleeve 2 has a movable groove 14 inside, and the diameter of the inner wall of the movable groove 14 is larger than the diameter of the second screw 8. The movable groove 14 can facilitate the passage of the second screw 8 and avoid jamming.

[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The limiting sleeve 2 is connected to the heat sink body 1 by riveting, and the limiting sleeve 2 is fixed to the heat sink body 1 by riveting.

[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 3 The outer wall of the limiting sleeve 2 has multiple sets of observation holes 13, which allow for easy observation of the installation status of the first screw 7 and whether it is securely fixed.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The number of locking components is any one of two, three, or four sets. Two sets of locking components are distributed at the diagonal corners of the radiator body 1, three sets of locking components are distributed at the triangular corners of the radiator body 1, and four sets of locking components are distributed at the four corners of the radiator body 1, so that the radiator body 1 can be fixed.

[0041] In practical operation: the limiting sleeve 2 is riveted to the heat sink body 1. Then, the heat sink body is connected to the chip by a screw and spring assembly. Next, the second screw 8 passes through the sliding groove 12 and moving groove 14 at the bottom of the limiting sleeve 2. Then, the fixing block 6 enters the sliding groove 12 and pulls the fixing rod 10 upward to fit on the outer wall of the second screw 8. Then, the rectangular block 9 is fitted on the outer wall of the second screw 8 and threadedly connected to the second screw 8. After the rectangular block 9 is installed, it is loosened and enters the limiting groove 3. Then, the nut 4 is fitted on the outer wall of the limiting sleeve 2 and tightened. The first screw 7 is inserted into the product's insertion hole. Then, the nut is fitted on the outer wall of the first screw 7 and the first screw 7 is tightened to complete the fixation of the heat sink body 1.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A locking structure for a heat sink, comprising a heat sink body (1), characterized by: A locking assembly is installed on the top of the heat sink body (1). The locking assembly includes a limiting sleeve (2), a limiting rod (5), a first screw (7), a second screw (8), a rectangular block (9), and a through hole (11). The locking assembly is installed on the top of the heat sink body (1) to fix the heat sink body (1) and prevent the heat sink body (1) from shaking and causing chip damage during transportation.

2. The locking structure for a heat sink according to claim 1, characterized by: The top of the radiator body (1) is provided with a limiting sleeve (2), and the two ends of the limiting sleeve (2) are respectively provided with a limiting groove (3) and a sliding groove (12). A limiting rod (5) is movably installed inside the limiting sleeve (2), and a fixing block (6) is fixed at the end of the limiting rod (5). A first screw (7) is fixed at the bottom of the fixing block (6), and a second screw (8) is fixed at the end of the limiting rod (5). A rectangular block (9) is sleeved on the outer wall of the second screw (8).

3. The locking structure for a heat sink according to claim 1, characterized by: The end of the limiting sleeve (2) is connected to the nut (4) by a thread, and the top of the nut (4) is provided with a through hole (11).

4. The locking structure for a heat sink according to claim 2, characterized by: The cross-section of the rectangular block (9) is set to be rectangular, and the diameter of the rectangular block (9) is smaller than the diameter of the inner wall of the limiting groove (3).

5. The locking structure for a heat sink according to claim 2, characterized by: The end of the second screw (8) is fixed with a fixing rod (10), and the cross section of the fixing rod (10) is set as a polygon.

6. The locking structure for a heat sink according to claim 1, characterized by: The limiting sleeve (2) has a moving groove (14) inside, and the diameter of the inner wall of the moving groove (14) is larger than the diameter of the second screw (8).

7. The locking structure for a heat sink according to claim 3, wherein: The limiting sleeve (2) is connected to the radiator body (1) by riveting.

8. The locking structure for a heat sink according to claim 1, characterized by: The outer wall of the limiting sleeve (2) is provided with an observation hole (13).

9. The locking structure for a heat sink according to claim 1, wherein: The number of locking components can be any one of two, three, or four sets.