US20240271883A1

US20240271883A1 - Cyclone heat-dissipation fin assembly

Info

Publication number: US20240271883A1
Application number: US18/645,271
Authority: US
Inventors: Fuyin WANG; Zuanfu LIU; Yu Zhang
Original assignee: Huizhou Xunshuo Technology Co Ltd
Current assignee: Huizhou Xunshuo Technology Co Ltd
Priority date: 2024-01-25
Filing date: 2024-04-24
Publication date: 2024-08-15
Also published as: CN221887007U

Abstract

A cyclone heat-dissipation fin assembly includes a heat pipe and first and second arc-shaped heat-dissipation fin groups fixed thereon. The first and second arc-shaped heat-dissipation fin groups are in snap fit with each other along a vertical direction, and are configured to open in opposite directions. Each fin group includes at least one heat-dissipation fin stackedly arranged. A fan with multiple rotating blades is provided at a side of the heat-dissipation fin groups to generate a swirling airflow to the arc-shaped heat-dissipation fin.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of priority from Chinese Patent Application No. 202420188952.X, filed on Jan. 25, 2024. The content of the aforementioned application, including any intervening amendments thereto, is incorporated herein by reference in its entirety.

TECHNICAL FIELD

This application relates to radiators, and more particularly to a cyclone heat-dissipation fin assembly.

BACKGROUND

With the rapid development of the computer and other electronic devices in terms of performance, integration and density, the power consumption has also been increasingly growing. Consequently, a considerable amount of heat is generated during the operation of devices, and higher and higher requirements have been put forward for the heat dissipation.
In the prior art, an air-cooled heat-dissipation module of an electronic device is composed of a heat pipe, a heat-dissipation fin and a fan. The air flow is accelerated to blow toward the heat-dissipation fin to take away the generated heat, so as to realize the heat-dissipation function. The heat dissipation performance is affected by the heat dissipation area and the air flow rate. The larger the heat dissipation area and the air flow rate, the better the heat dissipation performance. However, the radiator size is limited by the computer case and the motherboard, and the fan also has a power limit. In this case, the problem of insufficient heat dissipation efficiency has become more and more prominent. Therefore, it is needed to develop a radiator with a higher heat dissipation without increasing the size and fan power.

SUMMARY

An object of this application is to provide a cyclone heat-dissipation fin assembly to overcome shortcomings of the prior art.
Technical solutions of the present disclosure are described as follows.
A cyclone heat-dissipation fin assembly, comprising:

- a heat pipe;
- a first arc-shaped heat-dissipation fin group; and
- a second arc-shaped heat-dissipation fin group;
- wherein an interior of the heat pipe is hollow for heat conduction; the first arc-shaped heat-dissipation fin group and the second arc-shaped heat-dissipation fin group are fixedly provided on the heat pipe; the first arc-shaped heat-dissipation fin group comprises at least one first arc-shaped heat-dissipation fin; the second arc-shaped heat-dissipation fin group comprises at least one second arc-shaped heat-dissipation fin; the at least one first arc-shaped heat-dissipation fin is in snap fit with the at least one second arc-shaped heat-dissipation fin along a vertical direction; and the at least one first arc-shaped heat-dissipation fin is configured to open in a direction opposite to the at least one second arc-shaped heat-dissipation fin; the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin are configured to increase an heat-dissipation area to quickly release heat; an air flow is accelerated through a fan blowing against a radiator, so that the air flow passes through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin to take away the heat to realize heat dissipation; the fan outside the radiator is a rotating blade fan; the rotating blade fan drives an air to swirl and flow forward through rotating, and the air passing through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin has a motion with a swirling direction; the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin form a shape to conform to the swirling direction, so that wind can smoothly pass through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin, which improves an air flow rate passing through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin, a flow rate driven by the fan and heat-dissipation efficiency with a constant size of the radiator.

In an embodiment, for each of the at least one first arc-shaped heat-dissipation fin, a height difference between a central vertex and a side edge is greater than or equal to 5 mm; and for each of the at least one second arc-shaped heat-dissipation fin, a height difference between a central vertex and a side edge is greater than or equal to 5 mm; the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin have an effect of increasing a swirling air flow passing through therein; and compared to a horizontal heat-dissipation fin assembly, the air flow rate of the swirling air flow of the cyclone heat-dissipation fin assembly is increased by 20%.
In an embodiment, a maximum angle between an upper surface of each of the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin and a horizontal plane is greater than or equal to 21.5°; each of the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin has an arc shape, and an angle between any position of the arc shape and the horizontal plane is greater than or equal to 21.5°; the arc shape has the effect of increasing a swirling air flow passing through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin; and compared to a horizontal heat-dissipation fin assembly, the air flow rate of the swirling air flow of the cyclone heat-dissipation fin assembly is increased by 20%.
In an embodiment, the heat pipe is fixed with the first arc-shaped heat-dissipation fin group; the at least one first arc-shaped heat-dissipation fin is stackedly arranged, and is configured to open upward; the heat pipe is fixed with the second arc-shaped heat-dissipation fin group; and the at least one second arc-shaped heat-dissipation fin is stackedly arranged, and is configured to open downward.
In an embodiment, the first arc-shaped heat-dissipation fin group is located below the second arc-shaped heat-dissipation fin group; the first arc-shaped heat-dissipation fin group and the second arc-shaped heat-dissipation fin group form an approximately elliptic cavity to conform to an outlet air flow of the fan, so that the wind can smoothly pass through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin, and a flow of the wind forms relatively perfect flow field to improve an application rate of the arc-shaped heat-dissipation fin.
In an embodiment, each of the at least one first arc-shaped heat-dissipation fin is provided with a first heat-dissipation hole; a first flow guide assembly is provided at the first heat-dissipation hole; the first flow guide assembly comprises a first sheet, a second sheet and a third sheet; the first sheet and the second sheet are provided at two opposite ends of the first heat-dissipation hole, respectively; the first sheet and the second sheet are configured to extend out of a bottom surface of the at least one first arc-shaped heat-dissipation fin; the third sheet is inclinedly connected between the first sheet and the second sheet; and a side of the third sheet abuts a side of the first heat-dissipation hole; each of the at least one second arc-shaped heat-dissipation fin is provided with a second heat-dissipation hole; a second flow guide assembly is provided at the second heat-dissipation hole; the second flow guide assembly comprises a fourth sheet, a fifth sheet and a sixth sheet; the fourth sheet and the fifth sheet are provided at two opposite ends of the second heat-dissipation hole, respectively; the fourth sheet and the fifth sheet are configured to extend out of a bottom surface of the at least one second arc-shaped heat-dissipation fin; the sixth sheet is inclinedly connected between the fourth sheet and the fifth sheet; and a side of the sixth sheet abuts a side of the second heat-dissipation hole; the first heat-dissipation hole and the second heat-dissipation hole are configured to be transverse, which can form an air duct to control the flow of the wind; when the radiator is working, the flow of the wind passes through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin to generate a laminar structure, which improves the air flow rate to take away more heat and improves cooling efficiency of the radiator.
In an embodiment, an angle between the third sheet and the bottom surface of the at least one first arc-shaped heat-dissipation fin is 20-30°; and an opening direction of the first flow guide assembly faces toward an outside of the at least one first arc-shaped heat-dissipation fin; an angle between the sixth sheet and the bottom surface of the at least one second arc-shaped heat-dissipation fin is 20-30°; and an opening direction of the second flow guide assembly faces toward an outside of the at least one second arc-shaped heat-dissipation fin, such that the air duct is formed, and the heat can be removed better.
In an embodiment, a fan is provided at a side of the first arc-shaped heat-dissipation fin group and the second arc-shaped heat-dissipation fin group, and has a plurality of rotating blades; which can blow the air flow to swirl and move forward, and the swirling air flow passes through the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin more smoothly and faster.
In an embodiment, an edge of each of the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin is provided with a recess, which can facilitate the accurate alignment during the stacked arrangement of the arc-shaped heat-dissipation fins.
In an embodiment, a bottom of the heat pipe is provided with a fixing base; the fixing base is configured to fix a plurality of heat pipes; each of the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin is provided with a fixing hole; the heat pipe is insertedly provided in the fixing hole; and the heat pipe insertedly provided in the fixing hole is stably connected with the arc-shaped heat-dissipation fins.
The present disclosure has the following beneficial effect.
Based on characteristics of the swirling airflow that it can pass through an arc-shaped body more smoothly, an external rotating blade fan is adopted to generate the swirling air flow to the radiator composed of the first arc-shaped heat-dissipation fin group and the second arc-shaped heat-dissipation fin group opening in opposite directions. The swirling air flow can pass through the arc-shaped heat-dissipation fins with a higher velocity and larger air flow rate, such that more heat can be taken away, thereby improving the heat-dissipation efficiency of the radiator and realizing the quick heat dissipation in the case of the limited space and rated flow rate. Therefore, this application can satisfy the current heat dissipation requirements, and effectively remove the heat of electronic devices, thereby keeping the performance and output power of electronic devices stable, and extending their service life.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate the technical solutions of this application more clearly, the accompanying drawings required in the description of embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of this application, and therefore should not be considered as a limitation. For those of ordinary skill in the art, other relevant accompanying drawings can also be obtained according to these drawings without making creative effort.

FIG. 1 is an exploded view of a cyclone heat-dissipation fin assembly according to an embodiment of the present disclosure.

FIG. 2 is a front view of the cyclone heat-dissipation fin assembly according to an embodiment of the present disclosure.

FIG. 3 is a front view of an arc-shaped heat-dissipation fin according to an embodiment of the present disclosure.

FIG. 4 is a perspective view of the arc-shaped heat-dissipation fin according to an embodiment of the present disclosure.

In the figures: heat pipe 1; second arc-shaped heat-dissipation fin 21; first arc-shaped heat-dissipation fin 22; first arc-shaped heat-dissipation fin group 3; second arc-shaped heat-dissipation fin group 4; heat-dissipation hole 5; recess 6; fixing base 7; fixing hole 8; fan 9; and first flow guide assembly 10.

DETAILED DESCRIPTION OF EMBODIMENTS

The present disclosure will be further described below with reference to accompanying drawings and embodiments to facilitate understanding of the present disclosure. However, the present disclosure can be implemented in various forms, and is not limited by the embodiments herein. On the contrary, the embodiments provided herein are to facilitate the understanding of the disclosure.
It should be noted that, when a component is said to be “fixed” (“connected”) to another component, it can be directly fixed (connected) to another component or directly fixed (connected) to another component through an intermediate component. The terms, such as “perpendicular”, “horizontal”, “left”, “right” and other similar expressions used herein are only illustrative, and are not intended to limit the implementation.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. These terms used herein are only descriptive, and are not intended to limit the application. The term “and/or” used herein includes any and all combinations of one or more relevant listed items.
Referring to an embodiment of this application shown in FIGS. 1-4 , a cyclone heat-dissipation fin assembly includes a heat pipe 1, a first arc-shaped heat-dissipation fin group 3 and a second arc-shaped heat-dissipation fin group 4. The first arc-shaped heat-dissipation fin group 3 includes at least one first arc-shaped heat-dissipation fin 22, and the second arc-shaped heat-dissipation fin group 4 includes at least one second arc-shaped heat-dissipation fin 21. The first arc-shaped heat-dissipation fin group 3 and the second arc-shaped heat-dissipation fin group 4 are fixedly provided on heat pipe 1. And the at least one first arc-shaped heat-dissipation fin 22 is in snap fit with the at least one second arc-shaped heat-dissipation fin 21 along a vertical direction.
By adopting the above technical solution, a rotating blade fan 9 is provided outside a radiator. The rotating blade fan 9 is configured to drive an air to swirl and flow forward through rotating, and the air passing through the heat pipe 1, the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21 to take away a lot of heat for quick heat dissipation. Each of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21 has an arc shape. The at least one first arc-shaped heat-dissipation fin 22 is configured to open in a direction opposite to the at least one second arc-shaped heat-dissipation fin 21. Owing to the air passing through the arc-shaped heat-dissipation fins has a motion with a swirling direction, the at least one first arc-shaped heat-dissipation fin 22 is configured to open in a direction opposite to the at least one second arc-shaped heat-dissipation fin 21 form a shape to conform to the swirling direction, so that wind can smoothly pass through the arc-shaped heat-dissipation fins, which improves an air flow rate passing through the arc-shaped heat-dissipation fins and heat-dissipation efficiency in the case of the limited space and rated flow rate of a fan 9.
In an embodiment, for each of the at least one first arc-shaped heat-dissipation fin 22, a height difference between a central vertex and a side edge is greater than or equal to 5 mm. And for each of the at least one second arc-shaped heat-dissipation fin 21, a height difference between a central vertex and a side edge is greater than or equal to 5 mm.
By adopting the above technical solution, each of the at least one first arc-shaped heat-dissipation fin 22 is configured to open in a direction opposite to the at least one second arc-shaped heat-dissipation fin 21 has the arc shape. For the arc shape, a height difference between a highest point and a lowest point is greater than or equal to 5 mm. The arc shape has an effect of increasing the air flow rate of a swirling air flow passing through the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21. Compared to a horizontal heat-dissipation fin group, the air flow rate of the swirling air flow of the cyclone heat-dissipation fin assembly is increased by 20%.
In an embodiment, the heat pipe 1 is fixed with the first arc-shaped heat-dissipation fin group 3. The at least one first arc-shaped heat-dissipation fin 22 is stackedly arranged, and is configured to open upward. And the heat pipe 1 is fixed with the second arc-shaped heat-dissipation fin group 4. The at least one second arc-shaped heat-dissipation fin 21 is stackedly arranged, and is configured to open downward.
By adopting the above technical solution, the at least one first arc-shaped heat-dissipation fin 22 is stackedly arranged, and is configured to open upward. And the first arc-shaped heat-dissipation fin group 3 quickly dissipates the heat during blew by the fan 9. The at least one second arc-shaped heat-dissipation fin 21 is stackedly arranged, and is configured to open downward. And the second arc-shaped heat-dissipation fin group 4 quickly dissipates the heat during blew by the fan 9.
In an embodiment, a maximum angle between a lower surface of each of the at least one first arc-shaped heat-dissipation fin 22 and a horizontal plane is greater than or equal to 21.5°; and a maximum angle between an upper surface of each of the at least one second arc-shaped heat-dissipation fin 21 and the horizontal plane is greater than or equal to 21.5°.
By adopting the above technical solution, each of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21 has the arc shape, and an angle between any position of the arc shape and the horizontal plane is greater than or equal to 21.5°. The arc shape has the effect of increasing the air flow rate of a swirling air flow passing through the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21. Compared to a horizontal heat-dissipation fin group, the air flow rate of the swirling air flow of the cyclone heat-dissipation fin assembly is increased by 20%.
In an embodiment, the first arc-shaped heat-dissipation fin group 3 is located below the second arc-shaped heat-dissipation fin group 4.
By adopting the above technical solution, the first arc-shaped heat-dissipation fin group 3 is located below the second arc-shaped heat-dissipation fin group 4 to form an approximately elliptic cavity to conform to an outlet air flow of the fan 9, so that the wind can smoothly pass through the arc-shaped heat-dissipation fins, and a flow of the wind forms relatively perfect flow field to improve an application rate of the arc-shaped heat-dissipation fins.
In an embodiment, each of the at least one first arc-shaped heat-dissipation fin 22 is provided with a first heat-dissipation opening 5. A first flow guide assembly 10 is provided at the first heat-dissipation hole 5. The first flow guide assembly 10 includes a first sheet, a second sheet and a third sheet. The first sheet and the second sheet are provided at two opposite ends of the first heat-dissipation hole, respectively. The first sheet and the second sheet are configured to extend out of a bottom surface of the at least one first arc-shaped heat-dissipation fin 22. The third sheet is inclinedly connected between the first sheet and the second sheet. And a side of the third sheet abuts a side of the first heat-dissipation hole 5. Each of the at least one second arc-shaped heat-dissipation fin 21 is provided with a second heat-dissipation hole; a second flow guide assembly is provided at the second heat-dissipation hole 5. The second flow guide assembly includes a fourth sheet, a fifth sheet and a sixth sheet; the fourth sheet and the fifth sheet are provided at two opposite ends of the second heat-dissipation hole, respectively. The fourth sheet and the fifth sheet are configured to extend out of a bottom surface of the at least one second arc-shaped heat-dissipation fin 21. The sixth sheet is inclinedly connected between the fourth sheet and the fifth sheet; and a side of the sixth sheet abuts a side of the second heat-dissipation hole 5.
By adopting the above technical solution, the heat-dissipation openings 5 of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21 are configured to be transverse to form an air duct to control the flow of the wind. When the radiator is working, the flow of the wind of the fan 9 passes through the arc-shaped heat-dissipation fins to generate a laminar structure, which improves the air flow rate to take away more heat and improves cooling efficiency of the radiator.
In an embodiment, an angle between the third sheet and the bottom surface of the at least one first arc-shaped heat-dissipation fin is 20-30°, and an opening direction of the first flow guide assembly 10 faces toward an outside of the at least one first arc-shaped heat-dissipation fin 22. An angle between the sixth sheet and the bottom surface of the at least one second arc-shaped heat-dissipation fin is 20-30°, and an opening direction of the second flow guide assembly faces toward an outside of the at least one second arc-shaped heat-dissipation fin 21.
By adopting the above technical solution, the angle of 20-30° C. an form the air duct and make the arc-shaped heat-dissipation fins not too high. And the opening direction of the heat-dissipation opening 5 can take away heat better.
In an embodiment, the fan 9 is provided at a side of the first arc-shaped heat-dissipation fin group 3 and the second arc-shaped heat-dissipation fin group 4, and has a plurality of rotating blades.
By adopting the above technical solution, the fan 9 is provided at a side of the first arc-shaped heat-dissipation fin group 3 and the second arc-shaped heat-dissipation fin group 4, and has a plurality of rotating blades. The air flow blew by the rotating blade fan 9 will swirl and move forward, and a swirling air flow passes through the arc-shaped heat-dissipation fins more smoothly and faster.
In an embodiment, an edge of each of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21 is provided with a recess 6. And the recess 6 is concave into the each of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21.
By adopting the above technical solution, the recess 6 located at the edge of each of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21 is configured for a manufacture process of each of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21, which can facilitate the accurate alignment during the stacked arrangement of the arc-shaped heat-dissipation fins.
In an embodiment, a bottom of the heat pipe 1 is provided with a fixing base 7, and the fixing base 7 is configured to fix a plurality of heat pipes 1.
By adopting the above technical solution, the fixing base 7 of the bottom of the heat pipe 1 is configured to fix the plurality of heat pipes 1 together. Each of the at least one first arc-shaped heat-dissipation fin 22 and the at least one second arc-shaped heat-dissipation fin 21 is provided with a fixing hole 8. And the heat pipe 1 is insertedly provided in the fixing hole 8, so that the heat pipe 1 is stably connected with the arc-shaped heat-dissipation fins.
A working principle is described as follows.
The characteristic that the swirling air flow that it can pass through an arc-shaped body more smoothly is utilized. An external rotating blade fan 9 is adopted to generate the swirling air flow to the radiator composed of the first arc-shaped heat-dissipation fin group 3 and the second arc-shaped heat-dissipation fin group 4 opening in opposite directions. The swirling air flow can pass through the arc-shaped heat-dissipation fins with a higher velocity and larger air flow rate, such that more heat can be taken away, thereby improving the heat-dissipation efficiency of the radiator and realizing the quick heat dissipation in the case of the limited space and rated flow rate.
When installing the cyclone heat-dissipation fin assembly, the heat pipe 1 is attached on a heat source, and the radiator is fixed on an appropriate position. Then the rotating blade fan 9 is toward the radiator. And the rotating blade fan 9 is started to complete installation.
Described above is only the specific and detailed description of several embodiments of the disclosure, which is not intended to limit the scope of the disclosure. It should be pointed out that various variations and improvements made by those of ordinary skill in the art without departing from the spirit of the disclosure shall also fall within the scope of the disclosure defined by the appended claims.

Claims

What is claimed is:

1. A cyclone heat-dissipation fin assembly, comprising:

a heat pipe;

a first arc-shaped heat-dissipation fin group; and

a second arc-shaped heat-dissipation fin group;

wherein the first arc-shaped heat-dissipation fin group and the second arc-shaped heat-dissipation fin group are fixedly provided on the heat pipe; the first arc-shaped heat-dissipation fin group comprises at least one first arc-shaped heat-dissipation fin; the second arc-shaped heat-dissipation fin group comprises at least one second arc-shaped heat-dissipation fin; the at least one first arc-shaped heat-dissipation fin is in snap fit with the at least one second arc-shaped heat-dissipation fin along a vertical direction; and the at least one first arc-shaped heat-dissipation fin is configured to open in a direction opposite to the at least one second arc-shaped heat-dissipation fin.

2. The cyclone heat-dissipation fin assembly of claim 1, wherein for each of the at least one first arc-shaped heat-dissipation fin, a height difference between a central vertex and a side edge is greater than or equal to 5 mm; and for each of the at least one second arc-shaped heat-dissipation fin, a height difference between a central vertex and a side edge is greater than or equal to 5 mm.

3. The cyclone heat-dissipation fin assembly of claim 1, wherein the at least one first arc-shaped heat-dissipation fin is stackedly arranged, and is configured to open upward; and the at least one second arc-shaped heat-dissipation fin is stackedly arranged, and is configured to open downward.

4. The cyclone heat-dissipation fin assembly of claim 3, wherein a maximum angle between a lower surface of each of the at least one first arc-shaped heat-dissipation fin and a horizontal plane is greater than or equal to 21.5°; and a maximum angle between an upper surface of each of the at least one second arc-shaped heat-dissipation fin and the horizontal plane is greater than or equal to 21.5°.

5. The cyclone heat-dissipation fin assembly of claim 3, wherein the first arc-shaped heat-dissipation fin group is located below the second arc-shaped heat-dissipation fin group.

6. The cyclone heat-dissipation fin assembly of claim 1, wherein each of the at least one first arc-shaped heat-dissipation fin is provided with a first heat-dissipation hole; a first flow guide assembly is provided at the first heat-dissipation hole; the first flow guide assembly comprises a first sheet, a second sheet and a third sheet; the first sheet and the second sheet are provided at two opposite ends of the first heat-dissipation hole, respectively; the first sheet and the second sheet are configured to extend out of a bottom surface of the at least one first arc-shaped heat-dissipation fin; the third sheet is inclinedly connected between the first sheet and the second sheet; and a side of the third sheet abuts a side of the first heat-dissipation hole; and

each of the at least one second arc-shaped heat-dissipation fin is provided with a second heat-dissipation hole; a second flow guide assembly is provided at the second heat-dissipation hole; the second flow guide assembly comprises a fourth sheet, a fifth sheet and a sixth sheet; the fourth sheet and the fifth sheet are provided at two opposite ends of the second heat-dissipation hole, respectively; the fourth sheet and the fifth sheet are configured to extend out of a bottom surface of the at least one second arc-shaped heat-dissipation fin; the sixth sheet is inclinedly connected between the fourth sheet and the fifth sheet; and a side of the sixth sheet abuts a side of the second heat-dissipation hole.

7. The cyclone heat-dissipation fin assembly of claim 6, wherein an angle between the third sheet and the bottom surface of the at least one first arc-shaped heat-dissipation fin is 20-30°; and an opening direction of the first flow guide assembly faces toward an outside of the at least one first arc-shaped heat-dissipation fin;

an angle between the sixth sheet and the bottom surface of the at least one second arc-shaped heat-dissipation fin is 20-30°; and an opening direction of the second flow guide assembly faces toward an outside of the at least one second arc-shaped heat-dissipation fin.

8. The cyclone heat-dissipation fin assembly of claim 1, wherein a fan is provided at a side of the first arc-shaped heat-dissipation fin group and the second arc-shaped heat-dissipation fin group, and has a plurality of rotating blades.

9. The cyclone heat-dissipation fin assembly of claim 1, wherein an edge of each of the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin is provided with a recess.

10. The cyclone heat-dissipation fin assembly of claim 1, wherein a bottom of the heat pipe is provided with a fixing base; each of the at least one first arc-shaped heat-dissipation fin and the at least one second arc-shaped heat-dissipation fin is provided with a fixing hole; and the heat pipe is insertedly provided in the fixing hole.