Polyhedral combined cooling fin

By designing a multi-faceted heat sink, utilizing a polygonal heat dissipation frame and extended rib structure, the problem of insufficient space inside the router was solved, achieving efficient heat dissipation and a compact layout, thus improving the user experience.

CN224218723UActive Publication Date: 2026-05-08温州合盛电子有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
温州合盛电子有限公司
Filing Date
2025-05-29
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The router has limited internal space, and multiple circuit boards and heat sinks take up a lot of space, making the existing heat dissipation structure not compact enough.

Method used

Design a multi-faceted heat sink, which adopts a polygonal heat dissipation frame and internal extension ribs. The circuit board is attached to the side of the heat dissipation frame, and heat is conducted through the extension ribs. It is fixed by flexible pads and positioning posts, saving space.

Benefits of technology

It improves heat dissipation while reducing the space occupied by the heatsink, optimizing the circuit board layout, and enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224218723U_ABST
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Abstract

The utility model provides a polyhedral combined radiating fin, which comprises a radiating frame arranged in a polygonal structure and extension ribs arranged in the radiating frame, an external circuit board can be attached to any side wall of the radiating frame, and the radiating fin can effectively improve the radiating effect while reasonably distributing a PCB (printed circuit board).
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Description

Technical Field

[0001] This utility model relates to the field of PCB board heat dissipation technology, specifically to a multi-faceted heat sink. Background Technology

[0002] The function of a router is to distribute network signals to multiple devices and enable interconnection. A router needs to house multiple circuit boards, and to ensure that the components on the circuit boards can operate normally, they need to be equipped with heat sinks. In the current technology, heat dissipation of circuit boards is mostly achieved by fixing a heat sink on top of the circuit board for heat conduction. However, this structure requires a lot of space. Since the space inside a router is limited, multiple circuit boards and heat sinks will occupy a lot of space. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the limited space inside the router in the prior art, where multiple circuit boards and heat sinks occupy a lot of space, thereby providing a multi-faceted heat sink that can improve heat dissipation while saving the space occupied by the heat sink.

[0004] Therefore, this utility model provides a multi-faceted heat sink, including a heat sink frame with a polygonal structure and an extension rib disposed inside the heat sink frame, and an external circuit board that can be attached to any side wall of the heat sink frame.

[0005] Furthermore: the circuit board includes a PCB board and a tactile switch capable of controlling the PCB board. The PCB board is disposed on one side, and the tactile switch is disposed on another side. The PCB board and the tactile switch are connected by wires.

[0006] Furthermore: the extension rib includes a first extension plate arranged laterally and a second extension plate arranged longitudinally. The first extension plate and the second extension plate are arranged alternately to form a mesh structure. The ends of the first extension plate and the second extension plate are fixedly connected to the inner sidewall of the heat dissipation frame.

[0007] Furthermore: the side of the heat dissipation frame that contacts the PCB board is provided with a positioning post, and the positioning post is provided with a positioning hole, so that the external fastening nail can pass through the PCB board and be screwed into the positioning hole.

[0008] Furthermore: a flexible pad is provided below the heat dissipation frame, and an avoidance groove is provided between the first extension plate and the second extension plate to avoid the flexible pad.

[0009] The technical solution of this utility model has the following advantages:

[0010] 1. This utility model provides a multi-faceted heat sink with a circuit board that can be mounted on the side of the heat sink frame. The circuit board and the heat sink frame can be glued together with special double-sided adhesive. The heat sink frame is provided with extension ribs, which can simultaneously dissipate heat and increase strength. The heat sink frame can be placed inside a vertical wireless router. By setting the heat sink frame, the circuit board can be mounted on the side of the heat sink frame, thus better planning the layout of the circuit board.

[0011] 2. This utility model provides a multi-faceted heat sink, the circuit board includes a PCB board and a tactile switch that can control the PCB board. The tactile switch can control the operation of the PCB board. The PCB board is set on one side, and the tactile switch is set on the opposite side of the heat dissipation frame. This is convenient for users to operate. In use, the operation of the PCB board can be controlled by pressing the router interface. However, the PCB board generates heat during operation. If the tactile switch and the PCB board are set in the same position, the user will feel the product getting hot when pressing the tactile switch, which may cause some users to worry and affect the user experience. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the heat sink;

[0014] Figure 2 A schematic diagram of the overall structure of the heat sink from another angle;

[0015] Figure 3 A schematic diagram of the overall structure of the heat sink from another angle;

[0016] Figure 4 A schematic diagram of the overall structure of the heat sink from another angle;

[0017] Figure 5 This is a diagram of the bottom structure of the heat sink;

[0018] Figure 6 A schematic diagram showing the structure with part of the circuit board removed from the heat sink.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Heat dissipation frame; 2. Extension rib; 21. First extension plate; 22. Second extension plate; 3. Circuit board; 31. PCB board; 32. Tactile switch; 4. Positioning post; 41. Positioning hole; 5. Flexible pad; 51. Clearance groove.

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example

[0025] This embodiment provides a multi-faceted heat sink, including a heat sink frame 1 with a polygonal structure and an extension rib 2 disposed inside the heat sink frame 1. An external circuit board 3 can be attached to any side wall of the heat sink frame 1.

[0026] The specific improvements mentioned above are as follows: Figures 1-3As shown, a circuit board 3 can be installed on the side of the heat dissipation frame 1. The circuit board 3 and the heat dissipation frame can be glued together with special double-sided adhesive. The heat dissipation frame is provided with extension ribs 2, which can simultaneously dissipate heat and increase strength. The heat dissipation frame 1 can be placed inside a vertical wireless router. By setting the heat dissipation frame 1, the circuit board 3 can be installed on the side of the heat dissipation frame 1, thus better planning the layout of the circuit board 3. The heat dissipation frame 1 in this embodiment can be used in vertical wireless routers such as Wireless Cat Spirit and CC8.

[0027] Based on the above embodiments: the circuit board 3 includes a PCB board 31 and a tactile switch 32 that can control the PCB board 31. The PCB board 31 is disposed on one surface, and the tactile switch 32 is disposed on another surface. The PCB board 31 and the tactile switch 32 are connected by wires.

[0028] The specific improvements mentioned above are as follows: Figures 3-5 As shown, the circuit board 3 includes a PCB board 31 and a tactile switch 32 that can control the PCB board 31. The tactile switch 32 can control the operation of the PCB board 31. The PCB board 31 is set on one side, and the tactile switch 32 is set on the opposite side of the heat dissipation frame 1. This is convenient for users to operate. In use, the operation of the PCB board 31 can be controlled by pressing the router interface. However, the PCB board 31 will generate heat during operation. If the tactile switch 32 and the PCB board 31 are set in the same position, the user will feel the product getting hot when pressing the tactile switch 32, which may cause some users to worry and affect the user experience.

[0029] Based on the above embodiments: the extension rib 2 includes a first extension plate 21 arranged laterally and a second extension plate 22 arranged longitudinally. The first extension plate 21 and the second extension plate 22 are arranged alternately to form a mesh structure. The ends of the first extension plate 21 and the second extension plate 22 are fixedly connected to the inner sidewall of the heat dissipation frame 1.

[0030] The specific improvements mentioned above are as follows: Figure 6 As shown, the extension plate includes a first extension plate 21 arranged horizontally and a second extension plate 22 arranged vertically. The first extension plate 21 and the second extension plate 22 have an interlaced mesh structure. When the PCB board 31 generates heat, the heat will be conducted to the heat dissipation frame 1, and then to the first extension plate 21 and the second extension plate 22, and finally dissipated outward from the gap between the first extension plate 21 and the second extension plate 22.

[0031] Based on the above embodiments: the side of the heat dissipation frame 1 that contacts the PCB board 31 is provided with a positioning post 4, and the positioning post 4 is provided with a positioning hole 41, so that the external fastening nail can pass through the PCB board 31 and be screwed into the positioning hole 41.

[0032] The specific improvements mentioned above are as follows: Figure 6 As shown, a positioning post 4 is provided on the connection surface between the heat dissipation frame 1 and the PCB board 31. The positioning post 4 has a positioning hole 41. The PCB board 31 has a round hole that can be aligned with the positioning hole 41. During installation, fastening screws can be screwed in to fix the heat dissipation frame 1 and the PCB board 31.

[0033] Based on the above embodiments: a flexible pad 5 is provided below the heat dissipation frame 1, and an avoidance groove 51 is provided between the first extension plate 21 and the second extension plate 22 to avoid the flexible pad 5.

[0034] The specific improvements mentioned above are as follows: Figure 5 As shown, the heat dissipation frame 1 is installed inside the router, and a flexible pad 5 is set at the connection between the router and the heat dissipation frame 1. The flexible pad 5 is made of rubber material, and an extension ear is provided on the side of the flexible pad 5. The extension ear is provided with screws for screwing in to fix the flexible pad 5 inside the router. In order to facilitate the placement of the flexible pad 5, an avoidance groove 51 is provided in the heat dissipation frame 1 to avoid the flexible pad 5. Through the setting of the flexible pad 5, when the router is dropped, the flexible pad 5 can play a cushioning role, thereby better protecting the heat dissipation frame 1 and the PCB board 31.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-faceted heat sink, characterized in that: It includes a heat dissipation frame (1) with a polygonal structure and an extension rib (2) disposed inside the heat dissipation frame (1). The external circuit board (3) can be attached to any side wall of the heat dissipation frame (1).

2. The polyhedral heat sink according to claim 1, characterized in that: The circuit board (3) includes a PCB board (31) and a tactile switch (32) that can control the PCB board (31). The PCB board (31) is disposed on one surface, and the tactile switch (32) is disposed on another surface. The PCB board (31) and the tactile switch (32) are connected by wires.

3. A polyhedral heat sink according to claim 1 or 2, characterized in that: The extension rib (2) includes a first extension plate (21) arranged laterally and a second extension plate (22) arranged longitudinally. The first extension plate (21) and the second extension plate (22) are arranged alternately to form a mesh structure. The ends of the first extension plate (21) and the second extension plate (22) are fixedly connected to the inner wall of the heat dissipation frame (1).

4. A polyhedral heat sink according to claim 1 or 2, characterized in that: The heat dissipation frame (1) has a positioning post (4) on the side that contacts the PCB board (31). The positioning post (4) has a positioning hole (41) inside, and the external fastening nail can pass through the PCB board (31) and be screwed into the positioning hole (41).

5. A multi-faceted heat sink according to claim 3, characterized in that: A flexible pad (5) is provided below the heat dissipation frame (1), and an avoidance groove (51) is provided between the first extension plate (21) and the second extension plate (22) to avoid the flexible pad (5).