A network card heat dissipation structure

By designing a combination of heat sink and air guide plate on the network card, the problem of low heat dissipation efficiency of existing network cards is solved, achieving a high-efficiency heat dissipation effect and improving the performance and stability of the network card.

CN224684286UActive Publication Date: 2026-08-25CHENGDU HENGHAN MICROELECTRONICS CO LTD
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Patent Information

Application Number
CN202521872687.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2026-08-25
Estimated Expiration
2035-09-01

AI Technical Summary

Technical Problem

Existing network cards have a single heat dissipation method, limited heat dissipation area, and insufficient contact between cooling air and the network card surface, resulting in low heat dissipation efficiency and affecting network card performance and stability.

Method used

Design a network card heat dissipation structure, which adopts a combination of heat dissipation plate and air guide plate. The heat dissipation plate is equipped with heat dissipation grooves and air guide plate. The air guide plate is in the shape of an inverted isosceles triangle, and the cooling air directly contacts the surface of the network card. The heat dissipation grooves are set along the direction of cooling air flow, and the oblique angle guides the air speed and accelerates the entry of cooling air. The air concentrator guides the air volume. The mounting column and fasteners can adjust the tilt direction of the air concentrator.

Benefits of technology

The increased contact area and airflow between the cooling air and the network card surface enhances heat dissipation efficiency, meets the network card's heat dissipation requirements, and improves the network card's performance and stability.

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Abstract

The utility model relates to network card heat dissipation technical field provides a network card heat dissipation structure, including installing on the network card's heat dissipation board, be equipped with several neat arrangement heat dissipation strips on the heat dissipation board, the heat dissipation board is opened in and has several heat dissipation grooves that pass through its upside and downside, the heat dissipation groove is opened along the cooling wind flow direction, is equipped with several air deflector in its top along the cooling wind flow direction, the air deflector combination forms has inverted isosceles triangle structure in the same column, and every air deflector is located between the adjacent heat dissipation strip.
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Description

Technical Field

[0001] This utility model relates to the field of network card heat dissipation technology, and specifically to a network card heat dissipation structure. Background Technology

[0002] With the rapid development of information technology, network communication is increasingly widely used in various fields. As a key device for achieving network connectivity, the performance and stability of network interface cards (NICs) are crucial. However, NICs generate a lot of heat during operation. If heat cannot be dissipated effectively in a timely manner, the NIC temperature will become too high, affecting its performance and causing problems such as data transmission errors, unstable network connections, and even shortening the NIC's lifespan.

[0003] Currently, common network card heat dissipation methods are relatively simple, mostly relying on simple heat sinks or heat dissipation fins. These heat dissipation structures have limited heat dissipation area, and the contact between the cooling air and the network card surface is not sufficient, making it difficult to quickly remove the heat generated by the network card, resulting in low heat dissipation efficiency. Therefore, we propose a network card heat dissipation structure. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a network card heat dissipation structure to solve the above-mentioned problems in the prior art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a network card heat dissipation structure, comprising a heat dissipation plate installed on the network card, the heat dissipation plate having a plurality of neatly arranged heat dissipation strips, the heat dissipation plate having a plurality of heat dissipation grooves extending through its upper and lower sides, the heat dissipation grooves being opened along the cooling airflow direction, and a plurality of air guide plates being arranged above them along the cooling airflow direction, the air guide plates in the same row forming an inverted isosceles triangle structure, each air guide plate being located between adjacent heat dissipation strips, so as to guide the cooling air into the heat dissipation grooves to directly contact the surface of the network card.

[0008] Furthermore, each row of adjacent heat sinks has a beveled angle on its symmetrical surface, with the bevel facing the fan direction to increase the speed of the cooling air entering the adjacent heat sinks.

[0009] Furthermore, the heat sink has a pair of air-gathering plates on the side facing the fan, and the two air-gathering plates extend outward at an angle to increase the airflow into the heat sink structure.

[0010] Furthermore, the top of the heat sink is provided with a pair of mounting posts, the air gathering plate is provided with a mounting groove for the mounting posts to be inserted, and the mounting posts are provided with detachable fasteners so that the outer wall of the mounting posts abuts against the inner wall of the mounting groove.

[0011] Furthermore, the mounting post is composed of two symmetrical semi-cylindrical structures. The fastener includes a threaded hole and a screw opened in the semi-cylindrical structure. The two threaded holes together form a complete mounting hole structure. The screw is threadedly connected in the mounting hole, so that the two semi-cylindrical structures change outward relative to each other, thereby making the outer wall of the mounting post abut against the inner wall of the mounting groove.

[0012] Furthermore, the heat sink is symmetrically provided with fixing feet on both sides, and fixing holes are provided in the fixing feet for fixing the heat sink to the network card.

[0013] (III) Beneficial Effects

[0014] This utility model provides a network card heat dissipation structure. It has the following beneficial effects:

[0015] 1. By setting up air guide plates and heat dissipation slots, the cooling air can directly contact the surface of the network card, carrying away more heat, improving heat dissipation efficiency, and meeting the heat dissipation requirements of the network card.

[0016] 2. The symmetrical surfaces of adjacent heat sinks are angled and oriented towards the fan. This guides and accelerates the cooling airflow into the space between the heat sinks, increasing airflow speed and volume, and enhancing the cooling effect.

[0017] 3. The air-gathering plate on the side of the heat sink facing the fan is tilted outward, which can gather and guide more cooling air to the heat sink, increase the cooling air volume, and further improve the heat dissipation efficiency.

[0018] 4. The mounting post on the top of the heat sink is connected to the air concentrator plate by a detachable fastener. The fastener can be loosened to adjust the tilt direction of the air concentrator plate according to the actual situation, so as to avoid affecting other equipment and improve the flexibility of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a top view of the overall structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the wind-gathering plate and fastener structure of this utility model.

[0023] In the diagram: 1. Heat sink; 2. Heat sink strip; 3. Heat sink groove; 4. Air guide plate; 5. Angled angle; 6. Air concentrator plate; 7. Mounting post; 8. Mounting groove; 9. Threaded hole; 10. Screw; 11. Fixing foot; 12. Fixing hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] See attached document Figure 1-4 A network card heat dissipation structure includes a heat sink 1 installed on the network card. The bottom of the heat sink 1 is in close contact with the top of the network card, which can quickly conduct the heat generated by the network card to itself. It is made of copper or aluminum alloy.

[0026] The heat sink 1 is provided with several neatly arranged heat sink strips 2. The heat sink strips 2 are arranged in parallel and there is a certain distance between adjacent heat sink strips 2. When the cooling air passes through the heat sink strips 2, it can fully contact the surface of the heat sink strips 2.

[0027] The heat sink 1 has several heat dissipation slots 3 running through its upper and lower sides. The heat dissipation slots 3 are opened along the direction of cooling airflow. The cooling air is blown out by the fan installed in the host. Above it, several air guide plates 4 are arranged along the direction of cooling airflow. The air guide plates 4 in the same row are combined to form an inverted isosceles triangle structure. Each air guide plate 4 is located between adjacent heat dissipation strips 2. When the cooling air generated by the fan in the host moves along the gap between the heat dissipation strips 2, the air guide plates 4 in the same row will guide the cooling air into the heat dissipation slots 3, so that the cooling air directly contacts the surface of the network card. The air speed of the cooling air will gradually increase as it passes through the air guide plates 4, and the flow direction will change, so that the cooling air can more effectively act on the surface of the network card to quickly remove the heat accumulated on the surface of the network card, improve the heat dissipation efficiency, and better meet the heat dissipation requirements of the network card.

[0028] The heat dissipation slots 3 are multiple and are staggered within the heat dissipation plate 1 to facilitate rapid cooling of different parts of the network card surface by the cooling air.

[0029] In this embodiment, each row of adjacent heat sink 2 has a symmetrical face with an oblique angle 5, which is set towards the fan direction to increase the speed of the cooling air entering the adjacent heat sink 2. When the cooling air blown out by the fan encounters the heat sink 2, the oblique angle 5 can guide and accelerate it, so that the cooling air can enter the heat sink 2 at a faster speed and flow rate, thereby improving the heat dissipation efficiency.

[0030] In this embodiment, a pair of air-gathering plates 6 are provided on the side of the heat sink 1 facing the fan. The two air-gathering plates 6 extend outward at an angle. When the fan is working, the air-gathering plates 6 can gather more cooling air from the surrounding area and guide it onto the heat sink 1, thereby increasing the cooling air volume and improving the heat dissipation efficiency.

[0031] In this embodiment, a pair of mounting posts 7 are provided on the top of the heat sink 1, and a mounting groove 8 is provided in the air concentrator 6 for the mounting posts 7 to be inserted. The mounting posts 7 are provided with detachable fasteners so that the outer wall of the mounting posts 7 is pressed against the inner wall of the mounting groove 8. When the network card is installed in the host, the fasteners can be loosened according to the actual situation to adjust the tilt direction of the air concentrator 6, so as to avoid affecting the installation and operation of other devices. The structure is highly flexible.

[0032] In this embodiment, the mounting post 7 is composed of two symmetrical semi-cylindrical structures. The fastener includes a threaded hole 9 and a screw 10 opened in the semi-cylindrical structure. The two threaded holes 9 together form a complete mounting hole structure. When the screw 10 is screwed into the mounting hole, it will generate an outward extrusion force on the two semi-cylindrical structures, causing them to deform outwards relative to each other, increasing the outer diameter of the mounting post 7, so that its outer wall abuts against the inner wall of the mounting groove 8, ensuring a reliable connection between the mounting post 7 and the mounting groove 8, ensuring the stable installation of the air-collecting plate 6 on the heat sink 1, and ensuring its reliability in use. When it is necessary to adjust the angle of the air-collecting plate 6, simply unscrew the screw 10.

[0033] In order to facilitate the unscrewing of the screw 10, a cross groove is provided on its top.

[0034] In this embodiment, the heat sink 1 is symmetrically provided with fixing feet 11 on both sides, and fixing holes 12 are provided in the fixing feet 11 for fixing the heat sink 1 to the network card. When installing the heat dissipation structure, the heat sink 1 is installed in the corresponding hole of the network card by passing screws through the fixing holes 12 to ensure that the device can be stably fixed and to ensure subsequent use.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A network card heat dissipation structure, comprising a heat sink (1) mounted on the network card, characterized in that: The heat sink (1) is provided with several neatly arranged heat sink strips (2), and several heat sink grooves (3) are opened in the heat sink (1) through its upper and lower sides. The heat sink grooves (3) are opened along the cooling air flow direction, and several air guide plates (4) are provided above them along the cooling air flow direction. The air guide plates (4) in the same row are combined to form an inverted isosceles triangle structure. Each air guide plate (4) is located between adjacent heat sink strips (2) so as to guide the cooling air into the heat sink groove (3) to directly contact the network card surface.

2. The network card heat dissipation structure as described in claim 1, characterized in that: Each row of adjacent heat sinks (2) has a symmetrical face with an angle (5) facing the fan direction to increase the speed of the cooling air entering the adjacent heat sinks (2).

3. The network card heat dissipation structure as described in claim 1, characterized in that: The heat sink (1) has a pair of air-gathering plates (6) on the side facing the fan. The two air-gathering plates (6) extend outward at an angle to increase the airflow into the heat dissipation structure.

4. The network card heat dissipation structure as described in claim 3, characterized in that: The heat sink (1) has a pair of mounting posts (7) on its top. The air gathering plate (6) has a mounting groove (8) for the mounting posts (7) to be inserted into. The mounting posts (7) have detachable fasteners so that the outer wall of the mounting posts (7) abuts against the inner wall of the mounting groove (8).

5. The network card heat dissipation structure as described in claim 4, characterized in that: The mounting post (7) is composed of two symmetrical semi-cylindrical structures. The fastener includes a threaded hole (9) and a screw (10) opened in the semi-cylindrical structure. The two threaded holes (9) together form a complete mounting hole structure. The screw (10) is threaded into the mounting hole, so that the two semi-cylindrical structures change outwards towards each other, thereby making the outer wall of the mounting post (7) press against the inner wall of the mounting groove (8).

6. The network card heat dissipation structure as described in claim 1, characterized in that: The heat sink (1) has symmetrical fixing feet (11) on both sides, and fixing holes (12) are provided in the fixing feet (11) for fixing the heat sink (1) to the network card.