Area-increased multifunctional efficient cooling fin

Abstract

The invention relates to the technical field of cooling fins, and discloses an area-increasing multifunctional efficient cooling fin which comprises a three-dimensional main frame, the three-dimensional main frame comprises a bottom fish spine fin and a plurality of fish-bone-shaped cooling units which extend upwards from the bottom fish spine fin and are arranged on the bottom fish spine fin at equal intervals, and the fish-bone-shaped cooling units are arranged on the bottom fish spine fin. The bottom fish spine fins and the plurality of fishbone-shaped heat dissipation units are of an integrated structure; the fishbone-shaped heat dissipation unit comprises a top fishbone fin, and fishbone-shaped inner heat dissipation fins and fishbone-shaped outer heat dissipation fins which extend from the top fishbone fin to the two sides and are distributed in a staggered mode. The three-dimensional main frame provides a stable heat dissipation frame, the heat dissipation area is increased, air is allowed to flow in multiple directions, and therefore the heat dissipation effect is improved. And the fishbone-shaped heat dissipation units increase the number of the heat dissipation units, so that the heat dissipation area is increased. And meanwhile, optimization of air flow is facilitated, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of heat sinks, and in particular relates to an area-increased, multifunctional and efficient heat sink. Background Art

[0002] As the power density of electronic devices increases, heat dissipation becomes a key factor affecting device performance and reliability. Traditional heat dissipation solutions, such as flat heat sinks, heat pipes, and cooling fans, can meet the heat dissipation needs to a certain extent, but they have certain limitations in terms of heat dissipation efficiency, volume, weight, and customization. Therefore, the development of heat sinks with higher heat dissipation efficiency, better adaptability, and better structural strength has become an important direction of current electronic heat dissipation technology.

[0003] Existing heat sink technologies mainly include the following types:

[0004] Flat heat sink: This type of heat sink is usually made of materials with good thermal conductivity such as aluminum or copper, with a simple structure and low cost. However, the heat dissipation area of ​​a flat heat sink is limited, and the heat dissipation efficiency is limited by the thermal conductivity of the material and the air flow conditions.

[0005] Heat pipe: Heat pipe uses the heat pipe principle to transfer heat through the internal working fluid during evaporation and condensation. Although the heat dissipation efficiency is high, the design and manufacturing of heat pipes are relatively complex and difficult to adapt to different shapes of heat sources and installation spaces.

[0006] Cooling fan: The cooling fan combines a heat sink and a fan to improve heat dissipation efficiency by forcing air to flow. However, the noise and energy consumption of the fan limit its use in certain application scenarios.

[0007] In view of this, we propose an area-increasing multifunctional and efficient heat sink. Through its three-dimensional main frame and fishbone-shaped heat dissipation unit design, the heat dissipation area is greatly increased, providing higher heat dissipation efficiency, while having good mechanical strength and customization capabilities. It solves the problems of limited heat dissipation area, uneven heat dissipation efficiency, low customization, insufficient mechanical strength, and volume and weight limitations in the existing technology, providing a more efficient and reliable heat dissipation solution for electronic equipment. Summary of the invention

[0008] The present invention aims to solve the technical problems in the above-mentioned prior art that the heat dissipation area of ​​the heat sink is limited, the heat dissipation efficiency is uneven, the degree of customization is low and the mechanical strength is insufficient.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] An area-increasing multifunctional high-efficiency heat sink comprises a three-dimensional main frame, the three-dimensional main frame comprises a bottom fish spine fin, a plurality of fishbone-shaped heat dissipation units extending upward from the bottom fish spine fin and arranged at equal distances on the bottom fish spine fin, the bottom fish spine fin and the plurality of fishbone-shaped heat dissipation units are an integrated structure;

[0011] The fishbone-shaped heat dissipation unit comprises a top fishbone spine fin, fishbone-shaped inner heat dissipation fins extending from the top fishbone spine fins to both sides and distributed in a staggered manner, and a fishbone-shaped outer heat dissipation fin.

[0012] The three-dimensional main frame provides a structurally stable heat dissipation framework. The three-dimensional structure helps improve heat dissipation efficiency because it increases the heat dissipation area and allows air to flow in multiple directions, thereby improving the heat dissipation effect. The fishbone-shaped heat dissipation unit increases the number of heat dissipation units, thereby increasing the heat dissipation area. At the same time, this arrangement helps optimize air flow and improve heat dissipation efficiency.

[0013] Preferably, the fishbone-shaped inner heat dissipation fin is an L-shaped structure, and the fishbone-shaped outer heat dissipation fin is an inverted L-shaped structure. The design of the L-shaped and inverted L-shaped fin structures enables the fishbone-shaped inner heat dissipation fins and the fishbone-shaped outer heat dissipation fins to capture and conduct heat more effectively. The L-shaped structure increases the heat exchange area and helps to guide air flow.

[0014] Preferably, the fishbone-shaped inner heat sink fin is located between two adjacent fishbone-shaped outer heat sink fins, and similarly, the fishbone-shaped outer heat sink fin is located between two adjacent fishbone-shaped inner heat sink fins. The staggered layout between the fishbone-shaped inner heat sink fins and the fishbone-shaped outer heat sink fins increases the contact area of ​​the heat sink fins, thereby improving the heat dissipation efficiency and helping to form a more uniform air flow.

[0015] Preferably, parallel heat dissipation channels A are formed between adjacent fishbone-shaped heat dissipation units and the bottom fishbone fins. The parallel heat dissipation channels A help to form a continuous air flow path, thereby improving the heat dissipation efficiency.

[0016] Preferably, two left and right heat dissipation channels B are formed between the fishbone-shaped inner heat dissipation fins and the fishbone-shaped outer heat dissipation fins on both sides of the top fish spine fin, and a middle heat dissipation channel C located between the left and right heat dissipation channels B is formed between the fishbone-shaped inner heat dissipation fins on both sides of the top fish spine fin. The heat dissipation channel B and the middle heat dissipation channel C further increase the heat dissipation area and provide more paths for air flow, which is conducive to heat dissipation.

[0017] Preferably, an air diffusion hole position A connected to the heat dissipation channel B is formed between two adjacent fishbone-shaped outer heat dissipation fins, and an air diffusion hole position B connected to the heat dissipation channel B and connected to the middle heat dissipation channel C is formed between two adjacent fishbone-shaped inner heat dissipation fins. The air diffusion hole positions A and the air diffusion hole positions B allow air to flow freely between the heat dissipation channels, increase the heat dissipation efficiency, and help to quickly dissipate heat.

[0018] Preferably, the heat dissipation channel A, the heat dissipation channel B, the middle heat dissipation channel C, the air diffusion hole position A and the air diffusion hole position B are arranged in communication. The communication arrangement of the channels and the holes ensures smooth air flow, thereby improving the overall heat dissipation performance.

[0019] Preferably, the spacing between two adjacent fishbone-shaped outer fins is 3-5 mm, and the spacing between two adjacent fishbone-shaped inner fins is the same as the spacing between two adjacent fishbone-shaped outer fins. Appropriate spacing between the fins can ensure uniformity of air flow and avoid increased air flow resistance due to over-crowding of the fins.

[0020] Preferably, the width of the heat dissipation channel A is 3-5 mm, and the width of the top fish spine fin is 3-5 mm. Appropriate width ensures sufficient air flow space, while not being too large to avoid wasting materials or reducing heat dissipation efficiency.

[0021] Preferably, the width of the heat dissipation channel B is 3-4 mm and the height is 14-16 mm, and the width of the middle heat dissipation channel C is 3-4.5 mm and the height is 15-17 mm, which is conducive to optimizing air flow and heat exchange and improving heat dissipation efficiency.

[0022] Compared with the prior art, the technical effects and advantages of the present invention are:

[0023] The multifunctional and efficient heat sink with increased area has a three-dimensional main frame and a herringbone-shaped heat sink design. The heat sink greatly increases the heat dissipation area, allowing air to flow in multiple directions, improving the heat dissipation effect. The herringbone-shaped heat sink connected in a U-shaped reciprocating arrangement increases the number of heat sinks, further increasing the heat dissipation area and air flow efficiency.

[0024] The L-shaped and inverted L-shaped structures of the fishbone-shaped inner and outer heat dissipation fins, as well as their staggered distribution between the heat dissipation units, increase the heat exchange area and guide the air flow to form effective heat exchange. The design of heat dissipation channel A, heat dissipation channel B and intermediate heat dissipation channel C, as well as the setting of air diffusion hole position A and air diffusion hole position B, further optimize the air flow path so that heat can be transferred to the air more quickly. The careful design of the width, height and fin spacing of heat dissipation channel A, heat dissipation channel B and intermediate heat dissipation channel C ensures the smoothness of air flow and heat dissipation efficiency. The selection of these dimensions helps to maximize the balance between heat dissipation area and air flow, reduce heat transfer resistance, and improve heat dissipation efficiency.

[0025] The increased heat dissipation area and optimized air flow path allow the heat sink to dissipate heat more efficiently, reduce the temperature of the heat source, and improve the working efficiency and life of electronic equipment or other components that require heat dissipation. The integrated bottom fishbone fins and fishbone-shaped heat dissipation unit structure provide good mechanical strength, making the heat sink less likely to deform during the heat dissipation process and maintaining its working efficiency. Through the staggered distribution of the fishbone-shaped heat dissipation unit and the design of the heat dissipation channel, the heat sink can provide more uniform heat distribution, reduce hot spots, and thus protect sensitive electronic components.

[0026] The size, length, height and shape of the heat sink can be customized according to customer needs to adapt to different application scenarios and installation spaces. This provides effective heat dissipation support for various products and meets different technical requirements and market trends. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a first viewing angle diagram of the present invention;

[0028] Figure 2 It is a second viewing angle diagram of the present invention;

[0029] Figure 3 For the present invention Figure 1 The main view of

[0030] Figure 4 For the present invention Figure 1 A top view of

[0031] Figure 5 It is a schematic structural diagram of the herringbone-shaped heat dissipation unit of the present invention.

[0032] In the figure: 100, three-dimensional main frame; 11, bottom fishbone fins; 12, fishbone-shaped heat dissipation unit; 1201, top fishbone fins; 1202, fishbone-shaped inner heat dissipation fins; 1203, fishbone-shaped outer heat dissipation fins; 1204, heat dissipation channel B; 1205, middle heat dissipation channel C; 1206, air diffusion hole position A; 1207, air diffusion hole position B; 13, heat dissipation channel A. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The following combination Figures 1 to 5 To further explain this application in detail,

[0035] The embodiment of the present application discloses an area-increasing multifunctional high-efficiency heat sink, comprising a three-dimensional main frame 100, the three-dimensional main frame 100 comprising a bottom fish spine fin 11, a plurality of fishbone-shaped heat dissipation units 12 extending upward from the bottom fish spine fin 11 and arranged at equal distances on the bottom fish spine fin 11, the bottom fish spine fin 11 and the plurality of fishbone-shaped heat dissipation units 12 are an integrated structure;

[0036] The fishbone-shaped heat dissipation unit 12 includes a top fishbone fin 1201 , fishbone-shaped inner heat dissipation fins 1202 and fishbone-shaped outer heat dissipation fins 1203 extending from the top fishbone fin 1201 to both sides and being staggered.

[0037] The fishbone-shaped inner heat sink fin 1202 is an L-shaped structure, and the fishbone-shaped outer heat sink fin 1203 is an inverted L-shaped structure. The L-shaped design increases the surface area of ​​the fin, thereby providing more heat exchange area, which helps to improve the heat conduction efficiency. The L-shaped structure can provide additional mechanical strength for the heat sink, making the heat sink more durable. The inverted L-shaped structure helps to guide air flow and form a more efficient heat exchange.

[0038] The fishbone-shaped inner heat dissipation fin 1202 is located between two adjacent fishbone-shaped outer heat dissipation fins 1203. Similarly, the fishbone-shaped outer heat dissipation fin 1203 is located between two adjacent fishbone-shaped inner heat dissipation fins 1202. This layout can ensure smoother air flow because the inner heat dissipation fins are surrounded by the outer heat dissipation fins, which helps the air to form good convection between the fins. The inner heat dissipation fins are located between the outer heat dissipation fins, which helps to more effectively transfer the heat absorbed from the heat source to the air.

[0039] like Figure 1 and Figure 2As shown, the entire three-dimensional main frame 100 can be regarded as being composed of a plurality of U-shaped folded reciprocatingly arranged and connected fishbone-shaped heat dissipation units 12. Whether viewed from the top of the three-dimensional main frame 100 or from the bottom of the three-dimensional main frame 100, the three-dimensional main frame 100 is composed of a plurality of equidistantly arranged fishbone-shaped heat dissipation units 12. For the convenience of describing the three-dimensional main frame 100, the bottom fishbone fin 11 is used as the central substrate of the three-dimensional main frame 100, and the fishbone-shaped heat dissipation units 12 are extended upward from the central substrate.

[0040] Parallel heat dissipation channels A13 are formed between adjacent fishbone-shaped heat dissipation units 12 and the bottom fishbone fins 11. Parallel heat dissipation channels A13 help to evenly distribute heat, so that the entire heat sink can dissipate heat more effectively. The design of the channel helps to reduce the resistance of heat transfer, so that heat can be transferred from the heat source to the heat sink more quickly.

[0041] Two left and right heat dissipation channels B1204 are formed between the fishbone-shaped inner heat dissipation fins 1202 and the fishbone-shaped outer heat dissipation fins 1203 on both sides of the top fishbone fin 1201, and an intermediate heat dissipation channel C1205 located between the left and right heat dissipation channels B1204 is formed between the fishbone-shaped inner heat dissipation fins 1202 on both sides of the top fishbone fin 1201. The two heat dissipation channels B1204 provide additional heat transfer paths, which help to improve heat dissipation efficiency. The heat dissipation channel B1204 separates the heat flow, helps to avoid the generation of hot spots, and makes the heat dissipation more uniform. The intermediate heat dissipation channel C1205 further increases the heat exchange path, which helps to transfer heat from the inner heat dissipation fins to the air. The intermediate heat dissipation channel C1205 helps to disperse the heat absorbed by the top fins, making the heat dissipation more uniform and reducing the local overheating of the heat source.

[0042] An air diffusion hole A1206 connected to the heat dissipation channel B1204 is formed between two adjacent fishbone-shaped outer heat dissipation fins 1203, and an air diffusion hole B1207 connected to the heat dissipation channel B1204 and the middle heat dissipation channel C1205 is formed between two adjacent fishbone-shaped inner heat dissipation fins 1202. The air diffusion hole A1206 provides an additional channel for air flow, which helps the air to circulate inside the heat sink and improves the heat dissipation efficiency. The air diffusion hole A1206 helps to reduce the resistance of air flow so that heat can be taken away faster. The air diffusion hole B1207 allows the heat between the inner heat dissipation fins to be dispersed more effectively to avoid local overheating. The connection between the air diffusion hole B1207 and the heat dissipation channel B1204 and the middle heat dissipation channel C1205 increases the path of heat exchange and improves the heat exchange efficiency.

[0043] The heat dissipation channel A13, the heat dissipation channel B1204, the middle heat dissipation channel C1205, the air diffusion hole position A1206 and the air diffusion hole position B1207 are arranged in a connected manner. The connected design makes the air flow inside the heat sink smoother, and the heat can be transferred from one channel to another, thereby improving the heat dissipation efficiency. The connected channels and holes help to distribute the heat more evenly inside the heat sink, reducing the formation of hot spots. The heat dissipation channel A13, the heat dissipation channel B1204, and the middle heat dissipation channel C1205 are all arranged in parallel.

[0044] The three-dimensional main frame 100 provides a heat dissipation frame with a stable structure. The three-dimensional structure helps to improve the heat dissipation efficiency because it increases the heat dissipation area and allows air to flow in multiple directions, thereby improving the heat dissipation effect. The fishbone-shaped heat dissipation units 12 connected in a U-shaped reciprocating arrangement increase the number of heat dissipation units, thereby increasing the heat dissipation area. At the same time, this arrangement helps to optimize air flow and improve heat dissipation efficiency.

[0045] The total surface area of ​​the heat sink is greatly increased by the design of the three-dimensional main frame 100 and the fishbone-shaped heat dissipation unit 12. The increase in the heat dissipation area means a larger heat exchange area, which helps to quickly transfer heat from the heat source to the heat sink and dissipate it into the surrounding environment. The arrangement of the three-dimensional structure and the fishbone-shaped heat dissipation unit 12 optimizes the air flow path, allowing the air to form more effective convection inside the heat sink. Good air flow can accelerate the transfer of heat from the heat sink to the air.

[0046] The spacing between two adjacent fishbone-shaped outer heat sink fins 1203 is 3-5 mm, and the spacing between two adjacent fishbone-shaped inner heat sink fins 1202 is the same as the spacing between two adjacent fishbone-shaped outer heat sink fins 1203. The spacing of 3-5 mm can ensure smooth air flow and mechanical stability of the heat sink fins. Appropriate spacing can maximize the balance between heat dissipation area and air flow, thereby improving heat dissipation efficiency. The design of the same spacing helps to maintain the symmetry and consistency of the heat sink structure and improve its overall performance and stability. The same spacing helps to simplify the design and manufacturing process of the heat sink and reduce production costs.

[0047] The width of the heat dissipation channel A13 is 3-5mm, and the width of the top fish spine fin 1201 is 3-5mm. The heat dissipation channel A13 with a width of 3-5mm provides a suitable space for air flow, which will not cause excessive resistance due to being too narrow, nor will it cause the air flow rate to be too slow due to being too wide, affecting the heat dissipation efficiency. Such a width can also provide a certain structural strength to prevent the heat dissipation channel from deforming under high temperature or mechanical vibration. The width of the top fish spine fin 1201 is the same as that of the heat dissipation channel A13, which helps to effectively conduct heat and ensure that the heat loss is minimized during the process of heat transfer from the heat source to the fin. The appropriate width can enhance the stability of the fish spine fin and prevent deformation due to high temperature or external forces.

[0048] The width of the heat dissipation channel B1204 is 3-4mm and the height is 14-16mm, and the width of the middle heat dissipation channel C1205 is 3-4.5mm and the height is 15-17mm. The size design of the heat dissipation channel B1204 helps to increase the heat dissipation area while maintaining the smoothness of air flow. The height and width ratio of the heat dissipation channel B1204B helps to form an effective heat exchange, and heat can be transferred from the fins to the air faster. The size of the middle heat dissipation channel C1205 helps to form a uniform heat distribution between the inner heat dissipation fins on both sides of the top fish spine fin 1201 to avoid local overheating. The size optimization of the middle heat dissipation channel C1205 helps to enhance air convection and improve heat dissipation efficiency.

[0049] The increased heat dissipation area and optimized air flow path enable the heat sink to dissipate heat more efficiently, reduce the temperature of the heat source, and improve the working efficiency and life of electronic equipment or other components that require heat dissipation. The integrated bottom fishbone fin 11 and the fishbone-shaped heat dissipation unit 12 structure provide good mechanical strength, so that the heat sink is not easy to deform during the heat dissipation process and maintains its working efficiency. Through the staggered distribution of the fishbone-shaped heat dissipation unit 12 and the design of the heat dissipation channel, the heat sink can provide a more uniform heat distribution, reduce the generation of hot spots, and thus protect sensitive electronic components. The U-shaped foldback design makes the air flow path between the heat dissipation units more complicated, increases the flow time of air inside the heat sink, and improves the heat exchange efficiency. The heat sink of this design can be widely used in various electronic equipment, motors, power modules and other fields due to its efficient heat dissipation performance. The efficient heat sink can achieve efficient heat dissipation at a smaller volume and weight, which helps to reduce material use and reduce costs, and is also conducive to the lightweight and compact design of the product.

[0050] The size of the heat sink designed with the three-dimensional main frame 100 can be customized according to the actual needs of the customer, whether it is large to accommodate large equipment or small to accommodate small electronic components. The length and height can also be adjusted according to the heat dissipation requirements and application space, and the length and height changes can adapt to different heat source sizes and installation spaces. The shape of the heat sink can be customized according to the product appearance design or internal space layout to adapt to different installation locations and usage conditions.

[0051] This multifunctional and efficient heat sink can be used to dissipate heat from heat-generating components such as computer CPUs and GPUs, helping to maintain the normal operating temperature of the computer. It is suitable for various household appliances, such as TVs, stereos, microwave ovens, etc., to extend the service life of the appliances. The heat sink can provide the necessary heat dissipation for LED lamps, etc., ensuring that the lamps will not be damaged due to excessive temperatures. According to the specific needs of customers, the heat sink can be adjusted in design, including the number, size, spacing and overall structure of the fins. Provide customers with personalized heat dissipation solutions to meet different technical requirements and market trends.

[0052] In short, this increased-area, multifunctional, and efficient heat sink can be customized according to customer needs without sacrificing heat dissipation efficiency through its unique three-dimensional structure and flexible design concept, thereby providing effective heat dissipation support for various products.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional and efficient heat sink with increased area, characterized in that: The three-dimensional main frame (100) comprises a bottom fishbone fin (11), a plurality of fishbone-shaped heat dissipation units (12) extending upward from the bottom fishbone fin (11) and arranged at equal distances on the bottom fishbone fin (11), and the bottom fishbone fin (11) and the plurality of fishbone-shaped heat dissipation units (12) are an integrated structure; The fishbone-shaped heat dissipation unit (12) comprises a top fishbone fin (1201), fishbone-shaped inner heat dissipation fins (1202) extending from the top fishbone fin (1201) to both sides and distributed in a staggered manner, and fishbone-shaped outer heat dissipation fins (1203).

2. The multifunctional and efficient heat sink with increased area according to claim 1, characterized in that: The fishbone-shaped inner heat dissipation fins (1202) are of an L-shaped structure, and the fishbone-shaped outer heat dissipation fins (1203) are of an inverted L-shaped structure.

3. The multifunctional and efficient heat sink with increased area according to claim 1, characterized in that: The fishbone-shaped inner heat dissipation fin (1202) is located between two adjacent fishbone-shaped outer heat dissipation fins (1203); similarly, the fishbone-shaped outer heat dissipation fin (1203) is located between two adjacent fishbone-shaped inner heat dissipation fins (1202).

4. The multifunctional and efficient heat sink with increased area according to claim 1, characterized in that: Parallel heat dissipation channels A (13) are formed between adjacent fishbone-shaped heat dissipation units (12) and the bottom fishbone fins (11).

5. The multifunctional and efficient heat sink with increased area according to claim 4, characterized in that: Two left and right heat dissipation channels B (1204) are formed between the fishbone-shaped inner heat dissipation fins (1202) and the fishbone-shaped outer heat dissipation fins (1203) on both sides of the top fishbone fin (1201), and a middle heat dissipation channel C (1205) located between the left and right heat dissipation channels B (1204) is formed between the fishbone-shaped inner heat dissipation fins (1202) on both sides of the top fishbone fin (1201).

6. The multifunctional and efficient heat sink with increased area according to claim 5, characterized in that: An air diffusion hole position A (1206) connected to the heat dissipation channel B (1204) is formed between two adjacent fishbone-shaped outer heat dissipation fins (1203), and an air diffusion hole position B (1207) connected to the heat dissipation channel B (1204) and connected to the middle heat dissipation channel C (1205) is formed between two adjacent fishbone-shaped inner heat dissipation fins (1202).

7. The multifunctional and efficient heat sink with increased area according to claim 6, characterized in that: The heat dissipation channel A (13), the heat dissipation channel B (1204), the middle heat dissipation channel C (1205), the air diffusion hole position A (1206) and the air diffusion hole position B (1207) are arranged in communication with each other.

8. The multifunctional and efficient heat sink with increased area according to claim 1, characterized in that: The spacing between two adjacent fishbone-shaped external heat dissipation fins (1203) is 3-5 mm, and the spacing between two adjacent fishbone-shaped internal heat dissipation fins (1202) is the same as the spacing between two adjacent fishbone-shaped external heat dissipation fins (1203).

9. The multifunctional and efficient heat sink with increased area according to claim 4, characterized in that: The width of the heat dissipation channel A (13) is 3-5 mm, and the width of the top fish spine fin (1201) is 3-5 mm.

10. The multifunctional and efficient heat sink with increased area according to claim 5, characterized in that: The width of the heat dissipation channel B (1204) is 3-4 mm and the height is 14-16 mm, and the width of the middle heat dissipation channel C (1205) is 3-4.5 mm and the height is 15-17 mm.

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