Fan with shunting heat dissipation channel

By designing a fan with a diversion heat dissipation channel and utilizing structures such as conical air guide blocks and curved air guide plates, the problem of untimely heat dissipation of permanent magnet motors has been solved, achieving efficient heat dissipation and low-noise operation, ensuring the stability of the motor and the reliability of the equipment.

CN224093569UActive Publication Date: 2026-04-07SHANDONG ZHONGKE FAN MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

When a permanent magnet motor operates for an extended period of time, if the heat dissipation is not timely or effective, the motor temperature will rise sharply, affecting the stability of the motor performance.

Method used

Design a fan with a split-flow heat dissipation channel. Through structures such as conical air guide blocks, curved air guide plates, ventilation holes and silencers, the fan can precisely guide airflow to form uniform flow and local circulation, reduce noise and vibration, and improve heat dissipation efficiency.

Benefits of technology

It effectively improves the heat dissipation performance of the fan, reduces vibration and noise during operation, ensures long-term stable operation of the motor, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fan with a shunting heat dissipation channel, which comprises a fan shell, two sides of the fan shell are fixedly connected with a connecting cylinder, the fan shell and the lower end of the connecting cylinder are fixedly connected with a support frame, the inner side of the fan shell is provided with a ventilation cylinder, and the ventilation cylinder is fixedly connected with the fan shell. The outer side of the ventilation barrel is fixedly connected with a curved-surface air guide plate; the conical air guide blocks, the curved-surface air guide plates and the ventilation holes are used in cooperation, airflow flowing through the interior of the ventilation barrel is accurately guided and shunted, the airflow at the output end of the motor is evenly shunted to all areas of the ventilation barrel through the conical air guide blocks and the air guide slope faces, the situation that the airflow directly impacts the motor or the inner wall is avoided, and the service life of the motor is prolonged. The air flow direction and speed distribution are changed through the curved-surface air deflectors and the C-shaped openings, so that the air flow more evenly covers the working area of the motor, meanwhile, the air flow is guided to the gaps between the adjacent air deflectors through the ventilation holes, local air convection circulation is formed, and the heat dissipation effect is further enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to a fan with a heat dissipation channel for heat dissipation. Background Technology

[0002] A fan is a mechanical device used to transport gas. It converts mechanical energy into the kinetic and pressure energy of the gas, thereby realizing the intake, compression and exhaust of the gas. Fans play a vital role in many fields such as industry, construction, environmental protection and energy, providing necessary airflow support for various equipment and systems. In the field of modern industrial and electronic equipment, permanent magnet motors are widely used in various types of fans due to their significant advantages such as high efficiency, energy saving and high power density.

[0003] However, permanent magnet motors generate a lot of heat during continuous operation. If heat dissipation is not timely or effective, the motor temperature will rise sharply, which will affect the performance stability of the motor, shorten its service life, and may even cause motor failure, resulting in equipment downtime and production losses. Therefore, how to achieve efficient heat dissipation of permanent magnet motors has become a key issue to ensure stable operation of equipment and extend the service life of motors. To this end, we propose a fan with a diversion heat dissipation channel. Utility Model Content

[0004] One of the technical problems this application aims to solve is: addressing the issue that when a permanent magnet motor operates for an extended period of time, insufficient or ineffective heat dissipation leads to a rapid increase in motor temperature, which in turn affects the motor's performance stability.

[0005] To address the aforementioned technical problems, this application provides a fan with a diversion and heat dissipation channel, comprising a fan housing, connecting cylinders fixedly connected to both sides of the fan housing, a support frame fixedly connected to the lower end of the fan housing and the connecting cylinders, a ventilation duct provided on the inner side of the fan housing, and curved air guide plates fixedly connected to the outer side of the ventilation duct. Eleven curved air guide plates are provided and evenly distributed in a circumferential array. A ventilation hole is provided at one end of the ventilation duct, and eleven ventilation holes are provided, with the ventilation holes located on the inner side of every two curved air guide plates.

[0006] Preferably, a motor is fixedly connected to the inner side of the ventilation duct, and a fan blade is fixedly connected to the output end of the motor. A C-shaped opening is provided on one side surface of the curved air guide plate, and a circular slope is provided on the side of the curved air guide plate with the C-shaped opening.

[0007] Preferably, a conical air guide block is fixedly connected to the inner side of the ventilation duct. Several conical air guide blocks are arranged in a circumferential array and evenly distributed. An air guide slope is provided on the side of the conical air guide block near the motor output end, and a downwind slope is provided on the inner rear end of the ventilation duct.

[0008] Preferably, a plurality of the conical air guide blocks are evenly arranged on the outside of the motor, and the conical air guide blocks are arranged in a triangular cone shape.

[0009] Preferably, an air guide cone is provided on the inner side of the connecting cylinder located at the front end of the fan housing, and an air guide column is fixedly connected to the outer side of the air guide cone. Two sets of air guide columns are provided, and one end of each set of air guide columns is fixedly connected to the inner surface of the connecting cylinder located at the front end of the fan housing.

[0010] Preferably, a windward cone is provided on the inner side of the connecting cylinder located at the rear end of the fan housing, and a windward column is fixedly connected to the outer side of the windward cone. Two sets of windward columns are provided, and one end of each set of windward columns is fixedly connected to the inner surface of the connecting cylinder located at the rear end of the fan housing.

[0011] Preferably, a silencer is fixedly connected to the inner side of each of the two connecting cylinders.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. This utility model uses a combination of conical air guide blocks, curved air guide plates, and ventilation holes to precisely guide and divert the airflow inside the ventilation duct. The conical air guide blocks and the air guide slope evenly distribute the airflow from the motor output end to various areas of the ventilation duct, avoiding direct impact of airflow on the motor or inner wall, reducing energy loss and airflow turbulence. The curved air guide plates and C-shaped openings change the direction and speed distribution of airflow, making the airflow more evenly cover the motor working area. At the same time, the ventilation holes guide the airflow to the gap between adjacent air guide plates, forming local air convection circulation, further enhancing the heat dissipation effect.

[0014] 2. This utility model, through the combined use of the air guide cone, air guide column, and follow-through cone and follow-through column, enables a smooth transition of airflow when entering and exiting the fan, avoiding eddies and pressure losses caused by abrupt changes in cross-section. At the same time, the design of the silencer and silencer through-hole effectively disperses the airflow pressure, reduces turbulent noise caused by concentrated airflow impact, and creates a low-noise and stable operating environment for the motor. Overall, it effectively improves the heat dissipation performance of the fan, reduces vibration and noise during operation, further ensures the long-term stable operation of the motor, and provides strong support for the efficient and reliable operation of industrial equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention from a frontal perspective;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention from a rear-view perspective;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention from the left-side view.

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention from a right-side view.

[0019] Figure 5 This utility model Figure 4 Enlarged view of region A in the middle;

[0020] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the present invention from a rear-view perspective.

[0021] In the diagram: 1. Fan housing; 2. Connecting cylinder; 3. Support frame; 4. Ventilation duct; 5. Curved air guide plate; 6. Ventilation hole; 7. Motor; 8. Conical air guide block; 9. Air guide slope; 10. C-shaped opening; 11. Fan blade; 12. Air guide cone; 13. Downwind cone; 14. Air guide column; 15. Downwind column; 16. Silencer; 17. Downwind slope; 18. Circular slope. Detailed Implementation

[0022] 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.

[0023] Example

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6This utility model provides a technical solution: a fan with a diversion heat dissipation channel, including a fan housing 1, connecting cylinders 2 fixedly connected to both sides of the fan housing 1, a support frame 3 fixedly connected to the lower end of the fan housing 1 and the connecting cylinders 2, a ventilation duct 4 provided on the inner side of the fan housing 1, and curved air guide plates 5 fixedly connected to the outer side of the ventilation duct 4. Eleven curved air guide plates 5 are arranged in a circumferential array and evenly distributed. The curved air guide plates 5 utilize a curved design to change the airflow direction and speed distribution, making the airflow more evenly cover the target area, avoiding local overcooling, overheating, or uneven wind speed. Simultaneously, by smoothly transitioning the airflow direction, turbulence is reduced. The generation of airflow and eddies reduces noise. One end of the ventilation duct 4 is provided with ventilation holes 6, and there are eleven ventilation holes 6. The ventilation holes 6 are located on the inner side of every two curved air guide plates 5. The ventilation holes 6 guide the airflow to the area between adjacent curved air guide plates 5, avoiding the airflow from concentrating on a single path and making the airflow distribution more uniform. At the same time, it can eliminate the airflow stagnation area behind the curved air guide plate 5, ensuring that the airflow covers the entire air guide plate array and avoiding local temperature or pressure abnormalities. The airflow channel formed can enhance air convection, form local circulation, further improve the heat dissipation effect, reduce airflow turbulence and eddies, and reduce noise caused by airflow disturbance.

[0025] A motor 7 is fixedly connected to the inner side of the ventilation duct 4, and a fan blade 11 is fixedly connected to the output end of the motor 7. A C-shaped opening 10 is opened on one side surface of the curved air guide plate 5, and a circular slope 18 is provided on the side of the curved air guide plate 5 where the C-shaped opening 10 is opened. The C-shaped opening 10 changes the airflow direction by using its C-shaped notch design to avoid direct impact on the surface of the air guide plate, thereby reducing the vibration caused by airflow impact and effectively reducing the noise level.

[0026] A conical air guide block 8 is fixedly connected to the inner side of the ventilation duct 4. Several conical air guide blocks 8 are arranged in a circular array and evenly distributed. An air guide slope 9 is provided on the side of the conical air guide block 8 near the output end of the motor 7. A downwind slope 17 is provided on the inner side of the rear end of the ventilation duct 4. The even distribution of the conical air guide blocks 8 helps to evenly distribute the airflow to various areas of the ventilation duct 4 and improve the uniformity of airflow distribution.

[0027] Several conical air guide blocks 8 are evenly arranged on the outside of the motor 7. The conical air guide blocks 8 are arranged in a triangular cone shape. The triangular cone design of the conical air guide blocks 8 and the air guide slope 9 can guide the airflow at the output end of the motor 7 to flow in a specific direction, avoiding the airflow from directly impacting the inner wall of the motor 7 or the ventilation duct 4, reducing airflow turbulence and energy loss. The triangular cone structure of the conical air guide blocks 8 also helps to reduce the adhesion and separation of airflow on the surface of the air guide blocks, further reducing wind resistance and noise.

[0028] An air guide cone 12 is provided on the inner side of the connecting cylinder 2 located at the front end of the fan housing 1. An air guide column 14 is fixedly connected to the outer side of the air guide cone 12. There are two sets of air guide columns 14. One end of each set of air guide columns 14 is fixedly connected to the inner surface of the connecting cylinder 2 located at the front end of the fan housing 1. The tip of the air guide cone 12 is designed to guide the airflow smoothly into the fan, avoiding eddies and pressure loss caused by abrupt changes in cross-section at the inlet. The two sets of air guide columns 14 are respectively located in the middle and rear end of the air guide cone 12. There are three air guide columns 14 in each set. The three air guide columns 14 are evenly distributed in a circular array. The shape of the air guide column 14 is an equilateral triangular cone, and its cone tip faces the air inlet of the fan housing 1.

[0029] A windward cone 13 is provided on the inner side of the connecting cylinder 2 located at the rear end of the fan housing 1. A windward column 15 is fixedly connected to the outer side of the windward cone 13. There are two sets of windward columns 15. One end of each set of windward columns 15 is fixedly connected to the inner surface of the connecting cylinder 2 located at the rear end of the fan housing 1. The windward cone 13 can guide the airflow to flow smoothly out of the fan, avoiding eddies and pressure loss caused by abrupt changes in cross-section at the outlet. The windward column 15 is shaped like an equilateral triangular cone, with its cone tip facing the air inlet of the fan housing 1. The windward column 15 is used to guide the flow direction of the airflow.

[0030] Both connecting cylinders 2 are fixedly connected to the inner side of a silencer 16. The outer side of the silencer 16 is provided with a silencer through hole, which can disperse the airflow pressure and reduce turbulent noise caused by concentrated airflow impact.

[0031] Before using the entire device, first place the support frame 3 in the required position. Then, fix the fan housing 1 to the upper end of the support frame 3. Fix the two connecting cylinders 2 to the front and rear ends of the fan housing 1 respectively. Electrically connect the motor 7 inside the fan housing 1 to the external controller to control the working state of the motor 7 and provide the power support required for use. After starting the motor 7, the air guide cone 12 and air guide column 14 at the front end of the fan housing 1 guide the airflow smoothly into the fan, avoiding eddies and pressure loss caused by abrupt changes in cross-section at the inlet. Then, the airflow flows through the fan blades 11 to the rear end of the fan blades 11. The C-shaped opening 10 changes the airflow direction by using its C-shaped notch design to avoid direct impact on the surface of the air guide plate, thereby reducing vibration caused by airflow impact and effectively reducing noise level. When the airflow flows through the curved air guide plate 5, the curved design of the curved air guide plate 5 changes the airflow direction and velocity distribution, making the airflow cover the target area more evenly, avoiding local overcooling, overheating or uneven wind speed. At the same time, the smooth transition of the airflow direction reduces turbulence and eddies. The airflow is generated by guiding the airflow to the area between adjacent curved guide vanes 5 through ventilation holes 6, avoiding airflow concentration on a single path and making the airflow distribution more uniform. At the same time, it can eliminate the airflow stagnation area behind the curved guide vanes 5, ensuring that the airflow covers the entire guide vane array and avoiding local temperature or pressure abnormalities. The airflow channel formed can enhance air convection, form local circulation, and further improve the heat dissipation effect. Overall, it helps to facilitate airflow and effectively cool the motor 7, preventing the motor 7 from experiencing problems such as untimely or poor heat dissipation during long-term operation, which could lead to a sharp rise in the temperature of the motor 7 and affect the performance stability of the motor 7. When the airflow flows out, the use of the co-current cone 13 and co-current column 15 allows the airflow to smoothly transition when entering and exiting the fan, avoiding eddies and pressure loss caused by abrupt changes in cross-section. Overall, it effectively improves the heat dissipation performance of the fan, reduces vibration and noise during operation, and further ensures the long-term stable operation of the motor 7, providing strong support for the efficient and reliable operation of industrial equipment.

[0032] 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 process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fan with a heat dissipation channel, comprising a fan housing (1), characterized in that: Connecting cylinders (2) are fixedly connected to both sides of the fan housing (1). A support frame (3) is fixedly connected to the lower end of the fan housing (1) and the connecting cylinder (2). A ventilation cylinder (4) is provided on the inner side of the fan housing (1). A curved air guide plate (5) is fixedly connected to the outer side of the ventilation cylinder (4). Eleven curved air guide plates (5) are provided and are evenly distributed in a circular array. A ventilation hole (6) is opened at one end of the ventilation cylinder (4). Eleven ventilation holes (6) are provided. The ventilation holes (6) are located on the inner side of every two curved air guide plates (5).

2. A fan with a heat dissipation channel for diversion according to claim 1, characterized in that: A motor (7) is fixedly connected to the inner side of the ventilation duct (4), and a fan blade (11) is fixedly connected to the output end of the motor (7). A C-shaped opening (10) is opened on one side surface of the curved air guide plate (5), and a circular slope (18) is provided on the side of the curved air guide plate (5) where the C-shaped opening (10) is opened.

3. A fan with a heat dissipation channel for diversion according to claim 2, characterized in that: A conical air guide block (8) is fixedly connected to the inner side of the ventilation duct (4). Several conical air guide blocks (8) are arranged and evenly distributed in a circular array. An air guide slope (9) is provided on the side of the conical air guide block (8) near the output end of the motor (7). A downwind slope (17) is provided on the inner side of the rear end of the ventilation duct (4).

4. A fan with a heat dissipation channel for heat dissipation as described in claim 3, characterized in that: Several conical air guide blocks (8) are evenly arranged on the outside of the motor (7), and the conical air guide blocks (8) are arranged in a triangular cone shape.

5. A fan with a heat dissipation channel for diversion according to claim 1, characterized in that: An air guide cone (12) is provided on the inner side of the connecting cylinder (2) located at the front end of the fan housing (1). An air guide column (14) is fixedly connected to the outer side of the air guide cone (12). There are two sets of air guide columns (14). One end of each set of air guide columns (14) is fixedly connected to the inner surface of the connecting cylinder (2) located at the front end of the fan housing (1).

6. A fan with a heat dissipation channel for diversion according to claim 5, characterized in that: A wind-following cone (13) is provided on the inner side of the connecting cylinder (2) located at the rear end of the fan housing (1). A wind-following column (15) is fixedly connected to the outer side of the wind-following cone (13). Two sets of wind-following columns (15) are provided. One end of each set of wind-following columns (15) is fixedly connected to the inner surface of the connecting cylinder (2) located at the rear end of the fan housing (1).

7. A fan with a heat dissipation channel for diversion according to claim 6, characterized in that: A silencer (16) is fixedly connected to the inner side of each of the two connecting cylinders (2).