Fixing device applied to radiator

Abstract

The utility model relates to a fixing device applied to a radiator, the radiator comprises at least one radiating fin group and a cover plate arranged on the outer side of the radiating fin group, the cover plate is provided with a plurality of through limiting grooves, the radiating fin group is provided with a plurality of mounting holes corresponding to the limiting grooves, and the mounting holes are arranged on the radiating fin group. The fixing device comprises an expansion nail and an expansion sleeve which are matched in a sleeved mode, the top of the expansion sleeve is provided with a limiting protrusion corresponding to the limiting groove in a surrounding mode and used for axially limiting the expansion sleeve, the expansion nail is provided with a limiting protrusion used for preventing the expansion nail from falling off, and the expansion sleeve is provided with a gap corresponding to the limiting protrusion. And the expansion sleeve penetrates through the limiting groove and is arranged in the mounting hole. Through the cooperative use of the expansion sleeve and the expansion nail, not only can the cover plate be firmly fixed on the heat dissipation fin group, but also the teeth outside the expansion sleeve buckle the fins, so that the fins can be effectively prevented from being pulled and deformed, and the flatness and attractiveness of the fins are kept.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, and in particular to a fixing device applied to radiators. Background Art

[0002] In the existing radiator technology, the radiator cover is fixed mainly by means of screws, clips or welding. These traditional methods gradually expose some problems and shortcomings in the long-term use process. First, the screw fixing method requires the use of additional screws and nuts, which increases the complexity and cost of installation. Each screw needs to be tightened precisely to ensure that the cover is firmly fixed to the heat sink fin group. In addition, over time, the screws may loosen or fall off, resulting in a decrease in radiator performance or even failure. Multiple disassembly and assembly also increase the risk of screws loosening or falling off, which brings inconvenience to maintenance and maintenance; secondly, although the clip fixing method does not require the use of additional parts, it may not provide sufficient fixing force due to the limited fastening degree of the clip. In the case of long-term use or heavy load, the cover may gradually loosen or fall off. In addition, some clips may have precision problems, resulting in difficult installation or loose fixation. Finally, although the welding fixing method can provide a strong fixing force to firmly fix the cover on the heat sink fin group, the welding process is relatively complicated and has high requirements for materials. The temperature and time need to be precisely controlled during the soldering process to avoid damage to the heat sink. In addition, soldering may cause damage to the appearance of the heat sink, affecting its aesthetics.

[0003] In summary, the radiator cover fixing method in the prior art has certain defects and limitations. Therefore, there is an urgent need for a new, reliable, efficient and easy-to-install radiator cover fixing method to overcome the shortcomings of the prior art. This new fixing method needs to be able to provide sufficient fixing force to ensure that the cover is firmly fixed on the heat sink fin group while maintaining the beauty and heat dissipation effect of the radiator. In addition, the new fixing method also needs to simplify the installation and maintenance process to reduce costs and time. Utility Model Content

[0004] The utility model provides a fixing device applied to a radiator, aiming to solve the problems in the prior art that a radiator cover plate is not firmly fixed, is complicated to install and has a high cost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing device applied to a radiator, the radiator comprising at least one group of cooling fins and a cover plate arranged on the outside of the cooling fin group, the cover plate being provided with a plurality of penetrating limit grooves, the cooling fin group being provided with a plurality of mounting holes corresponding to the limit grooves, the fixing device comprising a fitted expansion nail and an expansion sleeve, the top of the expansion sleeve being provided with a limit protrusion corresponding to the limit groove for axially limiting the expansion nail, the expansion nail being provided with a limit protrusion for preventing the expansion nail from falling off, the expansion sleeve being provided with a gap corresponding to the limit protrusion, and the expansion sleeve being provided in the mounting hole through the limit groove.

[0006] Furthermore, the limiting protrusion includes a guiding portion and a stopping portion, and a stopping surface corresponding to the stopping portion is arranged in the expansion sleeve.

[0007] Furthermore, the limiting protrusion is arranged along the axis direction of the expansion nail.

[0008] Furthermore, the expansion sleeve is symmetrically provided with two gaps, and the expansion nail is provided with two limiting protrusions corresponding to the two gaps.

[0009] Furthermore, the limiting protrusion is made of flexible material.

[0010] Furthermore, the expansion casing is provided with a plurality of annular serrations.

[0011] Furthermore, the annular serrations are parallel to each other and equidistantly arranged along the axial direction of the expansion casing.

[0012] Furthermore, the number of the annular saw teeth is 6-10.

[0013] Furthermore, a hand-held portion for providing an upward pulling force is provided on the top of the expansion nail.

[0014] Furthermore, a control button integrally linked with the limiting protrusion is provided on the top of the expansion nail.

[0015] The benefits of the utility model are as follows: first, through the coordinated use of the expansion sleeve and the expansion nail, the cover plate can be firmly fixed on the heat dissipation fin group, and it is not easy to loosen or fall off, thereby ensuring the stability and reliability of the radiator; secondly, because the teeth on the outside of the expansion sleeve hold the fins, the fins can be effectively prevented from being pulled and deformed, thereby maintaining the flatness and beauty of the fins, and at the same time ensuring the heat dissipation effect of the radiator; the expansion nail is provided with a limiting protrusion for preventing it from falling off, which can automatically hold the expansion sleeve and prevent the expansion nail from automatically withdrawing, thereby improving the stability of use; the technical solution is easy to operate, and the user only needs to insert the expansion sleeve into the mounting hole of the heat dissipation fin, and then insert the expansion nail into the expansion sleeve to complete the installation, which saves time and effort and is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the fixing device of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the expansion nail of the utility model;

[0019] Figure 3 It is a top view of the radiator of the utility model;

[0020] Figure 4 This is a front view of the radiator of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the cover plate of the utility model.

[0022] In the figure: 1, heat sink fin assembly; 11, mounting hole; 2, cover plate; 21, limiting groove; 3, fixing device; 31, expansion sleeve; 311, limiting protrusion; 312, annular serration; 32, expansion nail; 321, guide portion; 322, stop portion. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixedly connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the existing radiator technology, the radiator cover is fixed mainly by means of screws, clips or welding. These traditional methods gradually expose some problems and shortcomings in the long-term use process. First, the screw fixing method requires the use of additional screws and nuts, which increases the complexity and cost of installation. Each screw needs to be tightened precisely to ensure that the cover is firmly fixed to the heat sink fin group. However, over time, the screws may loosen or fall off, resulting in a decrease in radiator performance or even failure. In addition, multiple disassembly and assembly also increase the risk of screws loosening or falling off, which brings inconvenience to maintenance and maintenance. Secondly, although the clip fixing method does not require the use of additional parts, it may not provide sufficient fixing force due to the limited fastening degree of the clip. In the case of long-term use or heavy load, the cover may gradually loosen or fall off. In addition, some clips may have precision problems, resulting in difficult installation or loose fixation. Finally, although the welding fixing method can provide a strong fixing force to firmly fix the cover on the heat sink fin group, the welding process is relatively complicated and has high requirements for materials. The temperature and time need to be precisely controlled during the soldering process to avoid damage to the heat sink. In addition, soldering may cause damage to the appearance of the heat sink, affecting its aesthetics.

[0027] In order to solve the above problems, the utility model proposes a novel radiator cover fixing device. The device is mainly composed of a radiator, a cover, an expansion nail and an expansion sleeve. The cover is provided with a limiting groove, and the heat sink fin group is provided with a mounting hole corresponding to the limiting groove. A limiting convex portion corresponding to the limiting groove is arranged around the top of the expansion sleeve, and the expansion nail is provided with a limiting protrusion to prevent it from falling off, and the expansion sleeve is provided with a gap corresponding to the limiting protrusion. When in use, the expansion sleeve passes through the limiting groove and is arranged in the mounting hole, and the expansion nail is inserted into the expansion sleeve to expand it, thereby fixing the radiator. The user only needs to insert the expansion sleeve into the mounting hole of the heat sink fin, and then insert the expansion nail into the expansion sleeve to complete the installation, which saves time and effort, and is convenient and quick. If the device needs to be disassembled, the user only needs to pull the expansion nail out of the expansion sleeve to easily disassemble it, which is convenient for later maintenance and maintenance. Due to the coordinated use of the expansion nail and the expansion sleeve, the device can firmly fix the cover on the heat sink fin group, is not easy to loosen or fall off, and ensures the stability and reliability of the radiator. At the same time, since the teeth on the outside of the expansion sleeve hold the fins, the fins can be effectively prevented from being pulled and deformed, the fins are kept flat and beautiful, and the heat dissipation effect of the radiator is also ensured. The utility model is mainly used in CPU radiators and has a wide range of application prospects and market potential.

[0028] The present invention will be further described and illustrated below in conjunction with specific embodiments and drawings.

[0029] Embodiment 1

[0030] The present embodiment mainly includes a fixing device 3 applied to a radiator, the radiator includes two groups of heat dissipation fin groups 1, a cover plate 2 is arranged on the top of the heat dissipation fin group 1, and limiting grooves 21 penetrating the cover plate 2 are arranged at the four corners of the cover plate 2, the heat dissipation fin group 1 is provided with a mounting hole 11 for installing an expansion sleeve 31 corresponding to the limiting groove 21, the fixing device 3 includes an expansion nail 32 and an expansion sleeve 31 used in combination, a limiting protrusion 311 is arranged around the top of the expansion sleeve 31, and the outer diameter of the limiting protrusion 311 is slightly larger than the outer diameter of the limiting groove 21. The outer diameter of the expansion sleeve 31 is axially limited by the limiting groove 21 through the limiting convex part 311. The expansion sleeve 31 is symmetrically provided with two gaps along the axis; the expansion nail 32 is provided with two limiting protrusions arranged along the axis direction of the expansion nail 32 corresponding to the gaps of the expansion sleeve 31 to prevent the expansion nail 32 from falling out of the expansion sleeve 31, wherein the limiting protrusion includes a guide part 321 close to the top of the expansion nail 32 and a stop part 322 close to the end of the expansion nail 32, and a stop surface corresponding to the stop part 322 is provided in the expansion sleeve 31. Specifically, the function of the guide part 321 is to guide the expansion nail 32 to be inserted into the expansion sleeve 31, so as to ensure that the expansion nail 32 can be smoothly inserted into the expansion sleeve 31. The function of the stop part 322 is to prevent the expansion nail 32 from automatically withdrawing after being inserted into the expansion sleeve 31, thereby increasing the stability of the fixing device 3. A stop surface is also provided in the expansion sleeve 31, which cooperates with the stop part 322 to further enhance the stability of the fixing device 3. Through the cooperation of the guide portion 321 and the stopper portion 322, the expansion nail 32 and the expansion sleeve 31 are stably matched, ensuring the stability and reliability of the radiator. In this embodiment, the limiting protrusion can be made of a flexible material, including rubber material, plastic material, and elastic plastic, etc. The elastic deformation characteristics of the limiting protrusion of such flexible material enable the expansion nail 32 to smoothly pass through the gap of the expansion sleeve 31. A hand-held portion such as a pull ring can be provided on the top of the expansion nail 32 for easy disassembly. Specifically, during the disassembly process, the operator only needs to grab the hand-held portion of the expansion nail 32 with his hand and then pull it out. Under the action of the pulling force, the two limiting protrusions on the expansion nail 32 will squeeze the gaps on both sides of the expansion sleeve 31 in turn due to their own elastic deformation, and successfully pass through the expansion sleeve 31, so that the expansion nail 32 can be separated from the expansion sleeve 31, completing the disassembly process of the entire fixing device. When in use, a mounting hole 11 is opened on the heat sink fin by using stamping technology, the expansion sleeve 31 is passed through the limiting groove 21 and installed in the mounting hole 11 of the heat sink fin group 1, and then the expansion nail 32 is inserted into the expansion sleeve 31 to expand the expansion sleeve 31 to achieve a fixed connection between the radiator cover plate 2 and the heat sink fin group 1.

[0031] Embodiment 2

[0032] On the basis of the above-mentioned embodiment, a more specific embodiment is provided, in which a plurality of annular serrations 312 are arranged on the expansion sleeve 31, and these serrations are arranged along the axial direction of the expansion sleeve 31, and each serration is parallel to each other and the distance between each serration is equal. In this embodiment, the number of annular serrations 312 is 8, and in other embodiments, the number of annular serrations 312 is 6 or 10. Specifically, a plurality of annular serrations 312 are arranged on the outside of the expansion sleeve 31, and these serrations are equidistantly distributed along the axial direction of the expansion sleeve 31, and a certain distance is maintained between adjacent serrations to ensure the installation stability and reliability of the radiator. The design of the annular serrations 312 can increase the friction between the fixing device 3 and the heat sink fin group 1, so that the fixing device 3 is more firmly fixed on the heat sink fin group 1. At the same time, the annular serrations 312 can provide sufficient friction and fixing force to ensure the stability and reliability of the radiator.

[0033] Embodiment 3

[0034] On the basis of the above-mentioned embodiment, a control button which is linked with the limiting protrusion is provided at the top of the expansion nail 32 in this embodiment. An elastic mechanism is provided inside the control button, which is realized by a spring or a rubber strip. When the control button is pressed downward, the limiting protrusion is driven to shrink and deform inward by the force of the internal elastic mechanism, so that the spacing between the limiting protrusions on both sides is reduced, thereby reducing the overall diameter of the expansion nail, which is conducive to easily pulling out the expansion nail 32 from the expansion sleeve 31. When the control button is released, the limiting protrusions on both sides will restore their original positions and spacings due to the elastic force, thereby realizing the rapid disassembly of the fixing device. Compared with the method of directly pulling out the expansion nail 32, this embodiment provides a control button, so that the operator can complete all the disassembly steps with one hand. At the same time, this structure avoids the damage to the limiting protrusion material that may be caused by direct pulling, and improves the disassembly and assembly life of the fixing device 3.

[0035] Embodiment 4

[0036] In this embodiment, the radiator includes two groups of heat dissipation fin groups 1, and each group of heat dissipation fin groups 1 is provided with corresponding mounting holes 11 for installing the fixing device 3. The cover plate 2 is arranged on the top of the heat dissipation fin group 1 through the fixing device 3, and the fixing device 3 includes an expansion sleeve 31 and an expansion nail 32. Through the cooperation of the expansion sleeve 31 and the expansion nail 32, the cover plate 2 is firmly fixed on the top of the heat dissipation fin group 1. Fixing devices 3 are respectively arranged at the four corners of the cover plate 2, and each corner is provided with a corresponding expansion sleeve 31 and an expansion nail 32 to ensure that the cover plate 2 can be firmly fixed on the heat dissipation fin group 1 at the four corners. Such a design can increase the stability between the cover plate 2 and the heat dissipation fin group 1, prevent the cover plate 2 from loosening or falling off, and improve the reliability and service life of the radiator.

[0037] In addition, since the cover plate 2 is arranged on the top of the heat sink fin group 1 through the fixing device 3, the electronic components inside the radiator can be better protected, dust, dirt and other impurities can be prevented from entering the radiator, and the cleanliness and performance of the radiator can be maintained. At the same time, the fixing device 3 is simple in design, easy to install and disassemble, and can be easily maintained and serviced, thereby reducing the use cost and maintenance cost.

[0038] The above is a detailed introduction to a fixing device for a radiator provided by the present invention. Specific examples are used in this article to illustrate the principle and implementation method of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea and method of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A fixing device for a radiator, characterized in that The radiator includes at least one group of heat dissipation fins and a cover plate arranged on the outside of the heat dissipation fin group, the cover plate is provided with a plurality of through-limiting grooves, the heat dissipation fin group is provided with a plurality of mounting holes corresponding to the limit grooves, the fixing device includes a fitted expansion nail and an expansion sleeve, the top of the expansion sleeve is provided with a limiting convex portion corresponding to the limit groove for axially limiting the expansion nail, the expansion nail is provided with a limiting protrusion for preventing it from falling off, the expansion sleeve is provided with a gap corresponding to the limiting protrusion, and the expansion sleeve passes through the limit groove and is arranged in the mounting hole.

2. The fixing device for a radiator according to claim 1, characterized in that: The limiting protrusion comprises a guiding portion and a stopping portion, and a stopping surface corresponding to the stopping portion is arranged in the expansion sleeve.

3. The fixing device for a radiator according to claim 2, characterized in that: The limiting protrusion is arranged along the axis direction of the expansion nail.

4. The fixing device for a radiator according to claim 3, characterized in that: The expansion sleeve is symmetrically provided with two gaps, and the expansion nail is provided with two limiting protrusions corresponding to the two gaps.

5. The fixing device for a radiator according to claim 4, characterized in that: The limiting protrusion is made of flexible material.

6. The fixing device for a radiator according to claim 5, characterized in that: The expansion casing is provided with a plurality of annular serrations.

7. The fixing device for a radiator according to claim 6, characterized in that: The annular serrations are parallel to each other and equidistantly arranged along the axis direction of the expansion casing.

8. The fixing device for a radiator according to claim 7, characterized in that: The number of the annular saw teeth is 6-10.

9. The fixing device for a radiator according to claim 5, characterized in that: The top of the expansion nail is provided with a hand-held portion for providing an upward pulling force.

10. The fixing device for a radiator according to any one of claims 1 to 8, characterized in that: A control button integrally linked with the limiting protrusion is arranged on the top of the expansion nail.

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