Multi-directional heat dissipation air outlet fan

Abstract

The utility model belongs to the technical field of fans, and discloses a multi-direction heat dissipation air outlet fan which comprises a fan body and an air nozzle structure, and the air nozzle structure is in seamless connection with an air outlet of the fan body. An L-shaped flow guide air duct is arranged in the fan body, an air outlet of the L-shaped flow guide air duct is communicated with the tuyere structure, and the outlet end of the tuyere structure forms a vertical air outlet direction; the air outlet direction of the rotating fan blade is connected with the L-shaped flow guide air duct; a flow guide part is arranged at an air outlet of the L-shaped flow guide air duct; by arranging the L-shaped flow guide air duct structure, airflow is output from the horizontal direction to the vertical direction, multi-direction air outlet is achieved in combination with the design of the air nozzle structure, the LED lamp is suitable for different installation spaces and heat dissipation requirements, and the overall heat dissipation effect is remarkably improved. And a plurality of arc-shaped flow deflectors are arranged at the outlet of the L-shaped flow guide air channel and are arranged at equal intervals in the circumferential direction, airflow can be uniformly dispersed, local vortexes are prevented from being formed, uniform distribution of air outlet airflow is ensured, and the heat dissipation performance is further improved.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a multi-directional heat dissipation fan. Background Technology

[0002] In existing industrial and electronic equipment, fans, as key heat dissipation components, are widely used in data centers, communication base stations, power cabinets, and various mechanical equipment. Traditional fan structures mostly adopt a straight-line airflow design, resulting in a single airflow direction. This typically only achieves unidirectional airflow and is insufficient to meet the multi-angle, multi-directional heat dissipation requirements in complex environments. Furthermore, due to unreasonable airflow structure or inadequate airflow guidance design, uneven airflow distribution and excessively high local temperatures occur, affecting overall heat dissipation efficiency.

[0003] Traditional fans often suffer from high noise and vibration during operation, especially at high speeds, where noise pollution is particularly noticeable, affecting user experience and the working environment. To address these issues, some fan products have incorporated sound-absorbing materials or vibration-damping structures, but their noise reduction effects are limited and they lack systematic optimization design. Utility Model Content

[0004] The main objective of this invention is to provide a multi-directional heat dissipation fan, aiming to solve the problems caused by unreasonable duct structure or insufficient airflow design, resulting in uneven airflow distribution, excessively high local temperatures, and reduced overall heat dissipation efficiency. Traditional fans often suffer from high noise and vibration during operation, especially at high speeds, where noise pollution is particularly pronounced.

[0005] To achieve the aforementioned objectives of this utility model, the first aspect of this utility model proposes a multi-directional heat dissipation fan, comprising:

[0006] The fan body and the nozzle structure are seamlessly connected to the air outlet of the fan body;

[0007] The fan body is provided with an L-shaped air guide duct, the air outlet of the L-shaped air guide duct is connected to the nozzle structure, and the outlet end of the nozzle structure forms a vertical air outlet direction.

[0008] Rotating fan blades, the air outlet direction of which is connected to the L-shaped air guide duct;

[0009] The air outlet of the L-shaped air duct is equipped with a guiding component to evenly disperse the airflow and achieve heat dissipation.

[0010] The flow guiding component includes several flow guiding plates.

[0011] Furthermore, the guide vanes are arc-shaped and are evenly distributed around the air outlet of the L-shaped guide duct, with a spacing of 5-15mm between adjacent guide vanes.

[0012] Furthermore, the L-shaped air duct has a guide surface at the bend.

[0013] Furthermore, the inner surface of the L-shaped air duct is covered with a layer of sound-absorbing material.

[0014] Furthermore, the sound-absorbing material layer is a porous polyurethane foam or ceramic fiber composite material with a thickness of 2-5 mm.

[0015] Furthermore, the fan also includes an internally installed temperature sensor and controller. The temperature sensor is located on the air guide vanes of the fan body, and the controller adjusts the fan speed based on the temperature sensor data.

[0016] Furthermore, a shock-absorbing washer, made of silicone rubber or nitrile rubber, is provided at the joint between the fan body and the nozzle structure.

[0017] Furthermore, the rotating fan blades are forward-tilted blades.

[0018] Furthermore, the structure of the L-shaped air duct is integrated with the fan body.

[0019] Furthermore, the rotating fan blades are integrally molded using an injection molding process and are made of engineering plastics or lightweight alloy materials.

[0020] Beneficial effects:

[0021] 1. By setting up an L-shaped airflow guide duct structure, the airflow is redirected from the horizontal direction to the vertical direction for output. Combined with the design of the nozzle structure, multi-directional airflow is achieved, suitable for different installation spaces and heat dissipation requirements, significantly improving the overall heat dissipation effect. Furthermore, several arc-shaped guide vanes are set at the outlet of the L-shaped airflow guide duct, arranged at equal intervals along the circumference, which can evenly disperse the airflow, prevent the formation of local eddies, ensure uniform airflow distribution, and further improve heat dissipation performance.

[0022] 2. By setting guide surfaces at the bends of the L-shaped air duct, energy loss during airflow turns is reduced, allowing for a smoother change in airflow direction, thereby improving ventilation efficiency and reducing energy consumption. The inner surface of the duct is covered with a layer of sound-absorbing material, preferably porous polyurethane foam or ceramic fiber composite material, with a thickness controlled between 2-5mm. This effectively absorbs high-frequency noise and significantly reduces fan operating noise. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a multi-directional heat dissipation fan according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the fan body structure of a multi-directional heat dissipation fan according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the fan body of a multi-directional heat dissipation fan according to an embodiment of the present invention;

[0026] Figure 4 This is a flow line diagram of the air duct velocity of an improved solution for a multi-directional heat dissipation fan according to an embodiment of the present invention.

[0027] Figure 5 This is a velocity vector diagram of the air duct of an improved scheme for a multi-directional heat dissipation exhaust fan according to an embodiment of the present invention.

[0028] Figure 6 This is a velocity cloud diagram of the air duct of an improved solution for a multi-directional heat dissipation fan according to an embodiment of the present invention.

[0029] in:

[0030] 1. Fan body; 11. Air outlet; 12. Guide vane; 13. Guide surface; 2. Nozzle structure; 21. Outlet end; 3. Rotating fan blade; 4. Controller; 5. Temperature sensor.

[0031] 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

[0032] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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. They 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0034] 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, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] Reference Figures 1-6 An embodiment of this utility model provides a multi-directional heat dissipation fan, comprising:

[0037] The fan body 1 and the nozzle structure 2 are seamlessly connected to the air outlet 11 of the fan body 1.

[0038] The fan body 1 is provided with an L-shaped air guide duct. The air outlet 11 of the L-shaped air guide duct is connected to the nozzle structure 2, and the outlet end 21 of the nozzle structure 2 forms a vertical air outlet direction.

[0039] Rotating fan blade 3, the air outlet direction of the rotating fan blade 3 is connected to the L-shaped air guide duct;

[0040] The air outlet 11 of the L-shaped air duct is equipped with a flow guiding component to evenly disperse the airflow and achieve heat dissipation.

[0041] The airflow guiding component includes several airflow guiding vanes 12. The airflow guiding vanes 12 are arc-shaped and are evenly distributed around the air outlet 11 of the L-shaped airflow guiding duct, with the spacing between adjacent airflow guiding vanes 12 being 5-15mm.

[0042] In this embodiment, the fan body 1 is equipped with an L-shaped air guide duct with a bending angle of 90°. The air outlet 11 is seamlessly connected to the nozzle structure 2 through a flange structure. The outlet end 21 of the nozzle structure 2 is designed to discharge air vertically, forming a spatial orthogonal layout with the L-shaped air guide duct, thereby realizing multi-angle adjustment of the airflow direction.

[0043] The airflow guiding component has eight arc-shaped airflow guiding vanes 12 at the air outlet 11 of the L-shaped airflow guiding duct. These vanes are made of aluminum alloy, are evenly spaced circumferentially, and have a spacing of 10mm. The radius of curvature of the airflow guiding vanes is R=15mm. By optimizing the airflow path, the airflow is evenly distributed to the four quadrants of the nozzle structure 2, thereby improving the heat dissipation efficiency.

[0044] The L-shaped guide duct has a guide surface 13 at its bend. The guide surface 13 at the bend of the L-shaped guide duct has a radius of curvature to duct width ratio of 1:1.5, which reduces airflow separation and turbulence loss. This guide surface 13 allows for smooth airflow deflection, reducing local resistance by more than 20%.

[0045] The inner surface of the L-shaped airflow duct is covered with a sound-absorbing material layer. This sound-absorbing material layer is a porous polyurethane foam or ceramic fiber composite material with a thickness of 2-5 mm. Preferably, the inner surface of the L-shaped airflow duct uses 3 mm thick porous polyurethane foam with a porosity ≥85%, fixed by an adhesive bonding process. This material possesses both good sound absorption and heat insulation properties.

[0046] Optionally, the fan also includes an internally installed temperature sensor 5 and a controller 4. The temperature sensor 5 is mounted on the air guide plate 12 of the fan body 1, and the controller 4 adjusts the fan speed based on the data from the temperature sensor 5. The temperature sensor 5 is a PT100 platinum resistance sensor, embedded in a groove on the surface of the air guide plate 12, to monitor the airflow temperature in real time. The controller 4 adjusts the fan speed based on a PID algorithm. When the temperature exceeds a set threshold, such as 60℃, the controller drives the motor to speed up via a PWM signal to achieve dynamic heat dissipation. This design references the temperature control logic of the computer room fan in webpage 3.

[0047] The joint between the fan body 1 and the nozzle structure 2 is equipped with a shock-absorbing washer made of silicone rubber or nitrile rubber. The shock-absorbing washer: A silicone rubber washer is installed at the joint between the fan body 1 and the nozzle structure 2, with a compression deformation of ≤15%, effectively isolating vibration transmission.

[0048] The rotating fan blade 3 is a forward-inclined blade. The rotating fan blade 3 is integrally molded using injection molding and is made of engineering plastic or lightweight alloy material.

[0049] It should be noted that the rotating fan blade 3 adopts a forward-tilting blade with an inclination angle of 25°. It is integrally molded through injection molding and the material is glass fiber reinforced nylon, which balances lightweight and high strength.

[0050] The L-shaped air duct is integrally integrated with the fan body 1. This integral integration ensures the overall robustness of the system.

[0051] Description: After the fan starts, the rotating fan blades 3 rotate at high speed driven by the drive motor, generating airflow that is then pressurized and output. Due to the forward-curved blade design, the rotating fan blades 3 have excellent aerodynamic characteristics, reducing operating noise while improving air pressure efficiency. The generated airflow enters the fan body 1 through an L-shaped guide duct. This L-shaped guide duct consists of horizontal and vertical sections, causing the airflow, which originally flows horizontally, to change direction at the bend, ultimately forming a vertically upward outlet direction. To reduce energy loss at the bend, a guide surface 13 is provided at the bend of the duct, ensuring a smooth transition of airflow, improving ventilation efficiency, and reducing vortex noise. The airflow continues to flow towards the outlet 11 of the L-shaped guide duct, where a guide component consisting of multiple arc-shaped guide vanes 12 is located. The guide vanes are evenly spaced along the circumference of the outlet, with a spacing of 5-15 mm between adjacent vanes. The design of the air guide vanes can evenly disperse the airflow, avoiding localized airflow concentration or vortex formation, thereby ensuring uniform airflow distribution and enhancing heat dissipation.

[0052] 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. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A multi-directional heat dissipation fan, characterized in that, include: The fan body (1) and the nozzle structure (2) are seamlessly connected to the air outlet (11) of the fan body (1); The fan body (1) is provided with an L-shaped air guide duct. The air outlet (11) of the L-shaped air guide duct is connected to the nozzle structure (2), and the outlet end (21) of the nozzle structure (2) forms a vertical air outlet direction. Rotating fan blade (3), the air outlet direction of the rotating fan blade (3) is connected to the L-shaped air guide duct; The air outlet (11) of the L-shaped air duct is provided with a guiding component to evenly disperse the airflow and achieve heat dissipation. The flow guiding component includes several flow guiding plates (12).

2. The multi-directional heat dissipation fan according to claim 1, characterized in that, The guide vanes (12) are arc-shaped and are evenly distributed around the air outlet (11) of the L-shaped guide air duct, with a spacing of 5-15 mm between adjacent guide vanes (12).

3. The multi-directional heat dissipation fan according to claim 1, characterized in that, The L-shaped air duct is provided with a guide surface (13) at the bend.

4. The multi-directional heat dissipation fan according to claim 1, characterized in that, The inner surface of the L-shaped air duct is covered with a layer of sound-absorbing material.

5. The multi-directional heat dissipation fan according to claim 4, characterized in that, The sound-absorbing material layer is a porous polyurethane foam or ceramic fiber composite material with a thickness of 2-5 mm.

6. The multi-directional heat dissipation fan according to claim 1, characterized in that, The fan also includes an internally installed temperature sensor (5) and controller (4). The temperature sensor (5) is installed on the guide vane (12) of the fan body (1), and the controller (4) adjusts the fan speed according to the data from the temperature sensor (5).

7. The multi-directional heat dissipation fan according to claim 1, characterized in that, The fan body (1) and the nozzle structure (2) are provided with shock-absorbing washers made of silicone rubber or nitrile rubber.

8. The multi-directional heat dissipation fan according to claim 1, characterized in that, The rotating fan blade (3) adopts a forward-tilting blade.

9. The multi-directional heat dissipation fan according to claim 1, characterized in that, The structure of the L-shaped air duct is integrated with the fan body (1).

10. The multi-directional heat dissipation fan according to claim 1, characterized in that, The rotating fan blade (3) is integrally molded using injection molding and is made of engineering plastics or lightweight alloy materials.

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