A high-efficiency heat dissipation device for servers

Abstract

This utility model discloses a high-efficiency heat dissipation device for servers, comprising a housing and an intake fan. The housing has an axially penetrating heat dissipation channel with an air inlet and an air outlet arranged opposite each other. The intake fan is disposed at the air inlet. The housing also includes at least one auxiliary air duct formed on the housing, with an auxiliary air inlet and an auxiliary air outlet arranged opposite each other. The auxiliary air outlet is connected to the heat dissipation channel, and the auxiliary air inlet and the air inlet are located on the same plane. Compared with traditional cooling fans, the high-efficiency heat dissipation device for servers provided by this application can achieve a greater cooling flow effect at the same motor speed, thus achieving efficient heat dissipation, while reducing mechanical noise generated by rotation at lower motor speeds.

Description

Technical Field

[0001] This utility model relates to a high-efficiency heat dissipation device for servers. Background Technology

[0002] In the field of network and information security, servers, as the hardware carriers of core security devices such as firewalls, security gateways, and data storage servers, directly affect the continuous operation of security systems due to their thermal stability. Once a server overheats due to poor heat dissipation, it can easily lead to problems such as processor throttling, memory errors, and hard drive failures, resulting in data loss, business interruption, and even creating opportunities for network attacks. Therefore, the reliability of the server's cooling system is a crucial foundation for ensuring information security and business continuity.

[0003] As a core component of the cooling system, server cooling fans utilize the principle of forced convection heat transfer to accelerate airflow and remove heat generated by critical components such as processors, memory, and hard drives, maintaining internal temperature balance. During the cooling process, airflow and air pressure are key parameters determining the cooling effect: a larger airflow can quickly remove more heat, while sufficient air pressure ensures that airflow can penetrate the complex heatsink fins and component gaps inside the server, achieving efficient heat exchange.

[0004] Currently, traditional server cooling fans mostly employ a fixed flow cross-section design. To improve heat dissipation performance, the industry generally increases airflow and air pressure by increasing fan speed. However, this approach has significant drawbacks: increasing speed not only exacerbates mechanical wear on components such as motors and bearings, leading to significantly increased noise and interfering with the data center environment and maintenance operations; but also, high-speed airflow passing through the cooling components easily induces turbulence, causing the airflow to transition from a stable laminar flow state to a disordered turbulent flow state, further generating high-frequency wind noise. Furthermore, high-speed operation increases energy consumption and equipment failure rate, raising maintenance costs and safety risks, making it difficult to meet business requirements for equipment stability, low noise, and low power consumption. Utility Model Content

[0005] The main objective of this invention is to provide a high-efficiency heat dissipation device for servers, aiming to solve the aforementioned technical problems.

[0006] To achieve the above objectives, this utility model proposes a high-efficiency heat dissipation device for servers, comprising a housing and an intake fan. The housing has an axially penetrating heat dissipation channel, which has an air inlet and an air outlet arranged opposite to each other. The intake fan is disposed at the air inlet. The housing also includes at least one auxiliary air duct formed on the housing, which has an auxiliary air inlet and an auxiliary air outlet arranged opposite to each other. The auxiliary air outlet is connected to the heat dissipation channel, and the auxiliary air inlet and the air inlet are located on the same plane.

[0007] In one embodiment, the heat dissipation channel is tapered along the direction from the air inlet to the air outlet.

[0008] In one embodiment, the auxiliary air duct is located outside the heat dissipation channel and is inclined toward the heat dissipation channel.

[0009] In one embodiment, the auxiliary air duct is curved.

[0010] In one embodiment, the cross-sectional area of ​​the auxiliary air duct gradually decreases and then gradually increases along the direction from the auxiliary air inlet to the auxiliary air outlet.

[0011] In one embodiment, there are multiple auxiliary air ducts, which are arranged around the outside of the heat dissipation channel.

[0012] In this invention, a high-efficiency server cooling device includes a housing and an intake fan. The housing has an axially penetrating cooling channel with an air inlet and an air outlet positioned opposite each other. The intake fan is located at the air inlet. The housing also includes at least one auxiliary air duct formed on the housing, with an auxiliary air inlet and an auxiliary air outlet positioned opposite each other. The auxiliary air outlet is connected to the cooling channel, and the auxiliary air inlet and the air inlet are on the same plane. Therefore, in this invention, when the intake fan is working, it uses pressure difference to draw in additional cooling air from the auxiliary air inlet. This air then passes through the auxiliary air outlet and flows into the cooling channel, finally exiting from the air outlet. Compared to traditional cooling fans, this achieves a greater cooling flow rate at the same motor speed, resulting in high-efficiency cooling. Furthermore, at lower motor speeds, it reduces mechanical noise generated by rotation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a server high-efficiency heat dissipation device according to an embodiment of the present invention.

[0015] The following are the reference numerals: 10, housing; 20, heat dissipation channel; 21, air inlet; 22, air outlet; 30, auxiliary air duct; 31, auxiliary air inlet; 32, auxiliary air outlet; 40, intake fan.

[0016] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] This invention provides a high-efficiency heat dissipation device for servers.

[0022] like Figure 1 As shown, the server high-efficiency heat dissipation device provided in this embodiment of the utility model includes a housing 10 and an intake fan 40. The housing 10 has an axially penetrating heat dissipation channel 20. The heat dissipation channel 20 has an air inlet 21 and an air outlet 22 arranged opposite to each other. The intake fan 40 is disposed at the air inlet 21. The housing 10 also includes at least one curved auxiliary air duct 30 opened on the housing 10. The auxiliary air duct 30 has an auxiliary air inlet 31 and an auxiliary air outlet 32 ​​arranged opposite to each other. The auxiliary air outlet 32 ​​is connected to the heat dissipation channel 20. The auxiliary air inlet 31 and the air inlet 21 are located on the same plane.

[0023] In this embodiment, when the intake fan 40 is working, it uses the pressure difference to draw in additional cooling air from the auxiliary air inlet 31. After passing through the auxiliary air outlet 32, this air flows into the heat dissipation channel 20 and is finally discharged from the air outlet 22. Compared with traditional cooling fans, it can achieve a greater cooling flow effect at the same motor speed, thus achieving efficient heat dissipation. At a lower motor speed, it can reduce the mechanical noise generated by rotation.

[0024] During the operation of the device, the intake fan 40 starts to rotate, which will draw in cooling air from the air inlet 21. The amount of air drawn in is recorded as Q1. Then the cooling air is discharged from the air outlet 22. The amount of air discharged is recorded as Q2. The amount of air discharged from the auxiliary air inlet 31 is recorded as Q3. The amount of air discharged from the auxiliary air outlet 32 ​​is recorded as Q4.

[0025] The air pressure at air inlet 21 is P1, the air pressure at air outlet 22 is P2, the air pressure at auxiliary air inlet 31 is P3, and the air pressure at auxiliary air outlet 32 ​​is P4. According to Bernoulli's principle, P4 < P2. Since both air inlet 21 and auxiliary air inlet 31 are located on the inlet side of the cooling fan and are open to the atmosphere, P2 = P3 > P4. When the intake fan 40 rotates, it uses the pressure difference to draw in additional cooling air from the auxiliary air inlet 31. This air passes through the auxiliary air outlet 32, flows into the heat dissipation channel 20, and is finally discharged from the air outlet 22.

[0026] Regarding the airflow relationship, Q2 = Q1 + Q4 and Q3 = Q6. Compared to a traditional cooling fan, a traditional fan has only one inlet (inlet airflow Q1') and one outlet (outlet airflow Q2'), meaning the airflow relationship is Q1' = Q2'.

[0027] When Q2 = Q2', Q1 < Q1', it means that the fan of this application can achieve the flow effect of a traditional fan at a lower motor speed, thereby reducing the mechanical noise generated by rotation; when Q1 = Q1', Q2 > Q2', it means that under the same intake power, this application can achieve a greater cooling flow effect, that is, higher energy efficiency.

[0028] In the above embodiment, the heat dissipation channel 20 is tapered along the direction from the air inlet 21 to the air outlet 22, which facilitates the achievement of greater pressure and allows cooling air to flow from the air inlet 21 to the air outlet 22, thereby increasing the air velocity.

[0029] For example, the auxiliary air duct 30 is located outside the heat dissipation channel 20 and is inclined toward the heat dissipation channel 20 so that the remaining cold air can easily flow in from the auxiliary air inlet 31.

[0030] In an alternative embodiment, please refer to Figure 1Along the direction from the auxiliary air inlet 31 to the auxiliary air outlet 32, the cross-sectional area of ​​the auxiliary air duct 30 gradually decreases and then gradually increases, so that the cooling air entering from the auxiliary air inlet 31 can flow into the heat dissipation channel 20 more quickly under pressure.

[0031] Optionally, there may be multiple auxiliary air ducts 30, which are arranged around the outside of the heat dissipation channel 20.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A high-efficiency heat dissipation device for servers, characterized in that, The server high-efficiency heat dissipation device includes a housing (10) and an intake fan (40). The housing (10) has an axially penetrating heat dissipation channel (20). The heat dissipation channel (20) has an air inlet (21) and an air outlet (22) arranged opposite to each other. The intake fan (40) is located at the air inlet (21). The housing (10) also includes at least one auxiliary air duct (30) opened on the housing (10). The auxiliary air duct (30) has an auxiliary air inlet (31) and an auxiliary air outlet (32) arranged opposite to each other. The auxiliary air outlet (32) is connected to the heat dissipation channel (20). The auxiliary air inlet (31) and the air inlet (21) are located on the same plane.

2. The server high-efficiency heat dissipation device according to claim 1, characterized in that, Along the direction from the air inlet (21) to the air outlet (22), the heat dissipation channel (20) is gradually narrowed.

3. The server high-efficiency heat dissipation device according to claim 2, characterized in that, The auxiliary air duct (30) is located outside the heat dissipation channel (20) and is inclined toward the heat dissipation channel (20).

4. The server high-efficiency heat dissipation device according to claim 3, characterized in that, The auxiliary air duct (30) is curved.

5. The server high-efficiency heat dissipation device according to claim 3, characterized in that, Along the direction from the auxiliary air inlet (31) to the auxiliary air outlet (32), the cross-sectional area of ​​the auxiliary air duct (30) gradually decreases and then gradually increases.

6. The server high-efficiency heat dissipation device according to claim 1, characterized in that, The number of auxiliary air ducts (30) is multiple, and the multiple auxiliary air ducts (30) are arranged around the outside of the heat dissipation channel (20).

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