A heat sink with different fin pitches

Abstract

The utility model relates to radiator technical field especially is a kind of radiator with different fin spacing, including heat plate, radiating fin assembly and radiating fan, multiple heat pipes are provided on heat plate, heat pipe is sequentially set in radiating fin assembly, radiating fan is set in the outside of radiating fin assembly, the two sides of first fin, the two sides of second fin and the two sides of third fin are respectively provided with first spacer, second spacer and third spacer, the height of first spacer, second spacer and third spacer is not same. The utility model is set up by first, second and third spacer with different height, makes radiating fin assembly form regional, non-uniform fin spacing distribution, can effectively guide airflow to form different flow channel in different area, avoid the vortex and wind resistance produced in traditional equidistance structure due to airflow concentration or stagnation, to improve the flow efficiency of airflow.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, and in particular to a radiator with different fin spacing. Background Technology

[0002] With the continuous development of electronic devices, especially high-performance computers, servers, graphics cards, and high-power LEDs, the heat generated during their operation is increasing, placing higher demands on heat dissipation systems. Highly efficient heat sinks have become one of the key components for ensuring the stable operation of electronic components and extending their service life.

[0003] Common air-cooled heat sinks typically consist of a vapor chamber, heat pipes running through the base plate, heat sink fin assemblies connected to the heat pipes, and a cooling fan to promote airflow. Among these, the heat sink fins, as the primary interface for heat transfer to the air, directly affect heat dissipation efficiency through their structural design. Traditional heat sinks often employ a densely packed, evenly spaced fin arrangement, meaning the distance between adjacent fins remains consistent. However, under specific airflow conditions, this dense, uniform fin structure can easily lead to airflow stagnation or turbulence, increasing wind resistance, affecting fan efficiency, and even generating significant noise. Utility Model Content

[0004] This invention aims to at least solve the technical problems existing in the prior art. To this end, this invention proposes a heat sink with different fin spacing. By setting spacers of different heights, the fins are regionalized and non-uniformly spaced, thereby optimizing the airflow and air pressure in the airflow channel and improving the overall heat dissipation performance.

[0005] A heat sink with different fin spacing according to some embodiments of the present invention includes a heat spreader, a heat dissipation fin assembly, and a cooling fan. The heat spreader is provided with multiple heat pipes, all of which pass sequentially through the heat dissipation fin assembly. The cooling fan is located on the outside of the heat dissipation fin assembly. The heat dissipation fin assembly includes multiple first fins, multiple second fins, and multiple third fins, arranged parallel to each other from bottom to top. A first spacer, a second spacer, and a third spacer are respectively provided on both sides of the first fins, both sides of the second fins, and both sides of the third fins. The heights of the first spacer, the second spacer, and the third spacer are different.

[0006] A heat sink with different fin spacing according to some embodiments of the present invention has at least the following beneficial effects:

[0007] This invention, by setting first, second, and third spacers of different heights, creates a regionalized, non-uniform fin spacing distribution in the heat dissipation fin assembly. This effectively guides airflow to form differentiated flow channels in different areas, avoiding eddies and wind resistance caused by concentrated or stagnant airflow in traditional equal-spacing structures. This improves airflow efficiency. Different fin spacings can be optimized based on the actual heat source distribution and airflow characteristics. Smaller fin spacings are used in areas with higher heat density to enhance the heat exchange area, while the spacing is appropriately increased in areas with higher wind resistance to improve ventilation. This achieves a reasonable match between airflow and air pressure, improving overall heat dissipation efficiency. At the same time, it reduces aerodynamic noise caused by airflow turbulence and eddy shedding, helping to reduce the operating noise of the cooling fan at high speeds and improving user comfort.

[0008] A heat sink with different fin spacing according to some embodiments of the present invention includes a connecting base, and the heat dissipation device is disposed on the connecting base.

[0009] According to some embodiments of the present invention, a heat sink with different fin spacing is provided with multiple fasteners at the edge of the connecting base.

[0010] According to some embodiments of the present invention, a heat sink with different fin spacing is provided, wherein a plurality of connecting holes are provided at the edge of the connecting base, and the fastener is connected to the connecting holes.

[0011] According to some embodiments of the present invention, a heat sink with different fin spacing is provided, wherein multiple clearance slots are provided at the edge of the heat sink fin assembly, and the clearance slots are provided one-to-one with the fastener.

[0012] According to some embodiments of the present invention, a heat sink with different fin spacing is provided on the top of the heat spreader, and the bottom of the heat pipe is welded to each of the welding seats.

[0013] According to some embodiments of the present invention, a heat sink with different fin spacing has different heights for the first spacer block, the second spacer block, and the third spacer block, with the height of the second spacer block being greater than the height of both the first spacer block and the second spacer block.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1This is a structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model with the heat sink fin assembly and cooling fan hidden.

[0018] Figure 3 This is a schematic diagram of the heat spreader and heat pipe in an embodiment of the present invention.

[0019] Reference numerals: 1. Heat spreader, 2. Heat sink fin assembly, 3. Cooling fan, 4. Heat pipe, 5. First fin, 6. Second fin, 7. Third fin, 8. First spacer, 9. Second spacer, 10. Third spacer, 11. Connecting base, 12. Fastener, 13. Connecting hole, 14. Clearance slot, 15. Welding seat. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] like Figures 1-3 As shown, this utility model embodiment provides a heat sink with different fin spacing.

[0025] A heat sink with different fin spacing includes a heat spreader 1, a heat dissipation fin assembly 2, and a cooling fan 3. The heat spreader 1 is provided with a plurality of heat pipes 4, which are sequentially inserted through the heat dissipation fin assembly 2. The cooling fan 3 is located on the outside of the heat dissipation fin assembly 2. The heat dissipation fin assembly 2 includes a plurality of first fins 5, a plurality of second fins 6, and a plurality of third fins 7, which are arranged parallel to each other from bottom to top. A first spacer block 8, a second spacer block 9, and a third spacer block 10 are respectively provided on both sides of the first fin 5, the second fin 6, and the third fin 7. The heights of the first spacer block 8, the second spacer block 9, and the third spacer block 10 are different.

[0026] This invention, by setting a first spacer block 8, a second spacer block 9, and a third spacer block 10 with different heights, enables the heat dissipation fin assembly 2 to form a regionalized, non-uniform fin spacing distribution. This effectively guides airflow to form differentiated flow channels in different areas, avoiding eddies and wind resistance caused by airflow concentration or stagnation in traditional equal-spacing structures, thereby improving airflow efficiency. Different fin spacings can be optimized according to the actual heat source distribution and airflow characteristics. Smaller fin spacings are set in areas with higher heat density to enhance the heat exchange area, while the spacing is appropriately increased in areas with higher wind resistance to improve ventilation conditions, achieving a reasonable match between airflow and air pressure, and improving overall heat dissipation efficiency. At the same time, it reduces aerodynamic noise caused by airflow turbulence and eddy shedding, which helps to reduce the operating noise of the cooling fan 3 at high speeds and improve user comfort.

[0027] This embodiment describes a heat sink with different fin spacing, including a connecting base 11, on which a heat spreader 1 is disposed. Specifically, by providing the connecting base 11, a stable mounting foundation is provided for the heat spreader 1, enhancing the mechanical strength and assembly stability of the overall structure, and facilitating reliable bonding and fixation of the heat sink and the heat-generating elements.

[0028] This embodiment describes a heat sink with varying fin spacing, wherein multiple fasteners 12 are provided along the edge of the connecting base 11. Specifically, by providing fasteners 12 along the edge of the connecting base 11, quick and detachable installation and fixation of the heat sink to the motherboard or casing of electronic devices can be achieved, improving assembly efficiency and maintenance convenience.

[0029] This embodiment describes a heat sink with different fin spacing. The connecting base 11 has multiple connecting holes 13 along its edge, and the fastener 12 connects to these connecting holes 13. Specifically, the mating structure between the connecting holes 13 and the fastener 12 allows for adjustable or detachable installation of the fastener 12 on the connecting base 11, improving assembly flexibility and ensuring the fastener 12's secure connection and positional accuracy.

[0030] This embodiment describes a heat sink with varying fin spacing. The heat sink fin assembly 2 has multiple clearance slots 14 along its edge, each corresponding to a fastener 12. Specifically, by providing clearance slots 14 on the heat sink fin assembly 2 that correspond to the fasteners 12, structural interference between the fasteners 12 and the fins is avoided, ensuring the heat sink fin assembly 2 can be smoothly installed, improving assembly accuracy and overall structural compactness.

[0031] This embodiment describes a heat sink with varying fin spacing. The top of the heat spreader 1 is provided with multiple welding seats 15, and the bottom of the heat pipe 4 is welded to each of the welding seats 15. Specifically, the welding seats 15 enable precise positioning and reliable welding between the heat pipe 4 and the heat spreader 1, enhancing the stability of the heat conduction path, reducing contact thermal resistance, and improving the efficiency of heat transfer from the heat spreader 1 to the heat pipe 4.

[0032] This embodiment describes a radiator with different fin spacings. The first spacer block 8, the second spacer block 9, and the third spacer block 10 all have different heights, with the second spacer block 9 being taller than both the first spacer block 8 and the third spacer block 10. Specifically, by making the second spacer block 9 taller than the first spacer block 8 and the third spacer block 10, a special airflow channel with a larger fin spacing in the middle area is formed. This facilitates guiding the main airflow through high-pressure areas, improving ventilation efficiency in the central area, and further optimizing the overall airflow distribution and heat dissipation performance.

[0033] Understandably, this invention optimizes airflow distribution, reduces dead zones and eddies, and lowers local wind resistance in the large-spacing area, making it the main airflow channel; the small-spacing area enhances heat transfer density to cope with high-heat areas; it effectively reduces airflow separation and eddies, improving airflow utilization; a larger spacing is set in the area path corresponding to the second spacer block 9 to form a low-resistance channel, making it easier for airflow to penetrate the fin stack; the cooling fan 3 can achieve the same or better airflow at a lower speed, reducing noise and power consumption; the high-pressure area corresponds to the small-spacing fins to ensure penetration; the high-airflow area corresponds to the large-spacing channel to increase airflow; it achieves spatial synergistic optimization of air pressure and airflow, and the overall heat dissipation efficiency is higher than that of a simple equal-spacing structure.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat sink with different fin spacing, characterized in that: The device includes a heat spreader, a heat sink fin assembly, and a cooling fan. The heat spreader has multiple heat pipes, which are sequentially inserted into the heat sink fin assembly. The cooling fan is located on the outside of the heat sink fin assembly. The heat sink fin assembly includes multiple first fins, multiple second fins, and multiple third fins, which are arranged parallel to each other from bottom to top. A first spacer block, a second spacer block, and a third spacer block are respectively provided on both sides of the first fins, the second fins, and the third fins. The heights of the first spacer block, the second spacer block, and the third spacer block are different.

2. A radiator with different fin spacing according to claim 1, characterized in that: It includes a connecting base, and the heat equalization device is disposed on the connecting base.

3. A radiator with different fin spacing according to claim 2, characterized in that: Multiple fasteners are provided along the edge of the connecting base.

4. A radiator with different fin spacing according to claim 3, characterized in that: The connecting base has multiple connecting holes along its edge, and the fastener connects to these connecting holes.

5. A radiator with different fin spacing according to claim 3, characterized in that: Multiple clearance slots are provided along the edge of the heat dissipation fin assembly, and each clearance slot corresponds to a fastener.

6. A radiator with different fin spacing according to claim 1, characterized in that: The top of the heat spreader is provided with multiple welding seats, and the bottom of the heat pipe is welded to each of the welding seats.

7. A radiator with different fin spacing according to claim 1, characterized in that: The heights of the first spacer block, the second spacer block, and the third spacer block are all different, and the height of the second spacer block is greater than the height of the first spacer block and the height of the third spacer block.

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