Self-cooling fan
By designing the through hole and deflector structure in the fan, using air flow to take away the motor heat, the serious problem of the fan heating in a high-temperature environment is solved, and the stable cooling and uniform heat dissipation of the motor is achieved to prevent damage.
Patent Information
- Application Number
- CN202422307555.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-20
AI Technical Summary
When existing fans work for a long time in high temperature environments, they are prone to severe heat, resulting in damage to the motor or even burning.
A self-cooled fan is designed. By forming a through hole between the guide shell and the motor, the pressure difference generated by the rotating fan blade is used to allow air to flow into the accumulation cover, and flow to the motor away from the shaft through the through hole, achieving heat transfer and cooling, and combining the guide plate and the heat dissipation tank to improve heat dissipation efficiency.
Effectively prevent the heating problem of the motor during long-term use in high-temperature environments, ensure the stable operation of the motor, avoid damage or burning, and improve the uniformity and efficiency of heat dissipation.
Smart Images
Figure CN223227531U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fans, and in particular to a self-cooling fan. Background Art
[0002] A fan is a driven fluid machine that relies on input mechanical energy to increase gas pressure and discharge the gas. Fans are widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; ventilation and air intake in boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and transporting grain; providing wind tunnel airflow; and inflating and propulsing hovercraft.
[0003] In factories and workshops, fans are required to operate for long periods of time in high-temperature environments to ensure continuous and efficient operation of the equipment. This places high demands on the fan's heat dissipation performance. Existing fans will cause severe heating of the motors, or even damage or burn out, due to prolonged operation in high-temperature environments. Utility Model Content
[0004] In order to improve the problem of serious heat generation in existing fans during long-term use, the present application provides a self-cooling fan.
[0005] The self-cooling fan provided in this application adopts the following technical solution:
[0006] A self-cooling fan comprises a motor and a guide shell, wherein one end of the motor is fixed inside the guide shell, and the other end of the motor is located outside the guide shell, a through hole is formed between the inner wall of the guide shell and the motor, the motor shaft is coaxially fixedly connected with fan blades, a gathering cover is fixed to one end of the guide shell close to the shaft, the fan blades are located in the gathering cover, the gathering cover is an air inlet at the end away from the motor, and the guide shell is an air outlet at the end close to the motor, the through hole is located between the air inlet and the air outlet, air flows into the air inlet, and the air flows out of the air outlet through the through hole.
[0007] By adopting the above-mentioned technical solution, when the self-cooling fan is running, the rotating fan blades generate a pressure difference inside and outside the gathering hood, causing air to flow into the gathering hood from the air inlet. The air flows through the through hole and flows toward the end of the motor away from the rotating shaft, so that the heat of the motor is taken away by heat transfer when the motor is working. Compared with the fans with existing technology, the self-cooling fan can work for a long time in a high-temperature environment, and cool the motor by heat transfer, thereby preventing the motor from generating heat during long-term use.
[0008] Optionally, a plurality of guide vanes are provided in the through hole, one end of the guide vane is fixed to the inner wall of the guide shell, and the other end of the guide vane is fixed to the outer shell of the motor.
[0009] By adopting the above technical solution, the guide plate plays a supporting role in the through hole, and the stability of the guide plate 9 fixed on the outer shell of the motor 1 and the inner wall of the guide shell 2 is enhanced while ensuring gas circulation.
[0010] Optionally, a plurality of guide plates are evenly spaced and arranged, and the guide plates divide the through hole into a plurality of guide holes.
[0011] By adopting the above technical solution, during the operation of the self-cooling fan, air enters from the air inlet, and the air flows evenly to the motor under the action of the guide vane, so that the air flow can be evenly distributed around the motor housing, so that the motor can dissipate heat evenly during operation.
[0012] Optionally, the edges of the guide plates are all chamfered.
[0013] By adopting the above technical solution, when air flows through the guide vane, the airflow can be made to flow more smoothly, and when the operator installs the self-cooling fan, the sharp edges of the guide vane can be prevented from scratching the operator's skin.
[0014] Optionally, a first flange is provided at one end of the focusing cover away from the fan blades, and a second flange is provided at one end of the guide shell close to the motor.
[0015] By adopting the above technical solution, the provision of the first flange and the second flange makes it easier for operators to remove the self-cooling fan from other equipment or to install the self-cooling fan on other equipment.
[0016] Optionally, the guide shell is integrally formed with a first annular plate near one end of the gathering hood, and the gathering hood is integrally formed with a second annular plate near one end of the guide shell. The first annular plate is coaxially fixed with the second annular plate, and the first annular plate is located outside the second annular plate. A fixing component is provided between the gathering hood and the guide shell, and the fixing component is used to connect the gathering hood and the guide shell.
[0017] By adopting the above technical solution, when connecting the gathering hood and the guide shell, the first annular plate and the second annular plate are coaxially fixed, so that the connection between the gathering hood and the guide shell is tightly sealed, and the guide shell and the gathering hood are connected through the fixing assembly.
[0018] Optionally, the fixing assembly includes a plurality of first protrusions integrally formed at one end of the gathering cover and a plurality of second protrusions integrally formed at one end of the guide shell, a first hole is provided on the first protrusion, a second hole is provided on the second protrusion, the first hole cooperates with the second hole, a bolt is provided between the first protrusion and the second protrusion, and the bolt passes through the first hole and the second hole to fix the guide shell and the gathering cover.
[0019] By adopting the above technical solution, when installing the gathering cover and the guide shell, the first hole matches the second hole, and the bolt passes through the first hole and is fixed in the second hole, thereby fixing the guide shell and the gathering cover.
[0020] Optionally, a plurality of heat dissipation slots are provided on the motor, and the heat dissipation slots are evenly spaced.
[0021] By adopting the above technical solution, the provision of the heat dissipation groove increases the heat dissipation area of the motor, thereby achieving a better cooling effect of the motor.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. During the operation of the self-cooling fan, air flows through the motor and cools it down, preventing damage or even burning of the motor during long-term use in a high-temperature environment;
[0024] 2. The setting of the guide vane makes the air flow evenly distributed around the motor housing, making the heat dissipation more uniform during the operation of the motor;
[0025] 3. The setting of the flange makes it easy to install the self-cooling fan on other equipment and to remove the self-cooling fan from other equipment;
[0026] 4. The setting of the heat dissipation slot increases the heat dissipation area of the motor, making the heat dissipation effect of the motor better. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0028] Figure 1 It is a cross-sectional view of a self-cooling fan.
[0029] Figure 2 It is a schematic diagram of the main structure of the self-cooling fan.
[0030] Figure 3 It is a cross-sectional view of a self-cooling fan.
[0031] Figure numerals: 1. motor; 2. guide shell; 3. through hole; 4. rotating shaft; 5. fan blade; 6. gathering cover; 7. air inlet; 8. air outlet; 9. guide plate; 10. guide hole; 11. chamfer; 12. first flange; 13. second flange; 14. first annular plate; 15. second annular plate; 16. first protrusion; 17. second protrusion; 18. first hole; 19. second hole; 20. heat sink. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-3 This application is described in further detail.
[0033] The embodiment of the present application discloses a self-cooling fan.
[0034] Reference Figure 1 A self-cooling fan includes a motor 1, a guide housing 2, fan blades 5, and a collecting hood 6. The end of the motor 1 near the rotating shaft 4 is located inside the guide housing 2, and the other end of the motor 1 is located outside the guide housing 2. The motor 1 is connected to the inner wall of the guide housing 2. The fan blades 5 are coaxially fixed to the rotating shaft 4. The collecting hood 6 is fixed to the end of the guide housing 2 near the rotating shaft 4. The fan blades 5 are located inside the collecting hood 6. A through hole 3 is formed between the motor 1 housing and the inner wall of the guide housing 2. The end of the collecting hood 6 away from the motor 1 is an air inlet 7, and the end of the guide housing 2 away from the rotating shaft 4 is an air outlet 8.
[0035] Reference Figure 1 The through hole 3 is located between the air inlet 7 and the air outlet 8. Air flows in from the air inlet 7 and flows out from the air outlet 8 through the through hole 3. During the operation of the self-cooling fan, the motor 1 drives the fan blades 5 on the rotating shaft 4 to rotate, thereby generating a pressure difference between the inside and outside of the gathering cover 6, causing air to flow from the air inlet 7 into the gathering cover 6. The airflow flows through the through hole 3 and flows in a direction away from the rotating shaft 4. The airflow flows out from the air outlet 8 along the motor 1, and removes the heat generated by the motor 1 through heat transfer, thereby realizing that the self-cooling fan partially cools the motor 1 in a high-temperature environment, preventing the motor 1 from being damaged or even burned due to long-term use in a high-temperature environment.
[0036] Reference Figure 1 A number of guide plates 9 are arranged inside the through hole 3. One end of the guide plates 9 is fixed to the outer casing of the motor 1, and the other end is fixed to the inner wall of the guide shell 2. The guide plates 9 play a supporting role between the motor 1 and the inner wall of the guide shell 2. While ensuring the flow of gas, the stability of the guide plates 9 fixed to the outer casing of the motor 1 and the inner wall of the guide shell 2 is enhanced.
[0037] Reference Figure 1 and Figure 2 Several guide vanes 9 are evenly spaced within the through hole 3. The guide vanes 9 divide the through hole 3 into several guide holes 10. During the operation of the self-cooling fan, the airflow through the motor 1 is made more uniform, improving the heat dissipation efficiency. The airflow can be evenly distributed around the motor 1, making the heat dissipation of the motor 1 more uniform during operation and preventing local overheating of the motor 1. The edges of the guide vanes 9 are each provided with chamfers 11, which make the airflow through the guide vanes 9 smoother and prevent the operator from being scratched by the sharp edges of the guide vanes 9 when installing and removing the guide vanes 9.
[0038] Reference Figure 2 A plurality of heat dissipation slots 20 are provided on the motor 1. When the motor 1 is running, gas flows through the heat dissipation slots 20, which increases the heat dissipation area of the motor 1 and improves the heat dissipation effect of the motor 1.
[0039] Reference Figure 1 and Figure 2 The first flange 12 is provided at one end of the gathering cover 6 near the air inlet 7, and the second flange 13 is provided at one end of the gathering cover 6 near the air outlet 8. The arrangement of the first flange 12 and the second flange 13 facilitates the operator to disassemble or install the self-cooling fan.
[0040] Reference Figure 3 A first annular plate 14 is integrally formed at one end of the guide shell 2 near the gathering hood 6, and a second annular plate 15 is integrally formed at one end of the gathering hood 6 near the guide shell 2. The first annular plate 14 and the second annular plate 15 are coaxially fixed, and the second annular plate 15 is located inside the first annular plate 14, so that the connection between the gathering hood 6 and the guide shell 2 is tightly sealed. A fixing component is provided between the gathering hood 6 and the guide shell 2, and the fixing component is used to fix the gathering hood 6 and the guide shell 2.
[0041] Reference Figure 1 and Figure 2 The fixing assembly includes a plurality of first protrusions 16 integrally formed at one end of the gathering cover 6 and a plurality of second protrusions 17 integrally formed at one end of the guide shell 2. A first hole 18 is opened on the first protrusion 16, and a second hole 19 is opened on the second protrusion 17. The first hole 18 cooperates with the second hole 19. A bolt is provided between the first protrusion 16 and the second protrusion 17. The bolt passes through the first hole 18 and is fixed in the second hole 19, thereby fixing the guide shell 2 and the gathering cover 6.
[0042] The implementation principle of a self-cooling fan in an embodiment of the present application is as follows: the self-cooling fan can be fixed to other equipment through a first flange 12 and a second flange 13. During the operation of the self-cooling fan, the motor 1 drives the rotation of the fan blades 5, forming a pressure difference inside and outside the gathering hood 6, and sucking air from the air inlet 7 into the gathering hood 6. Under the action of the fan blades 5, the air flow passes through the guide holes 10, and under the action of the guide holes 10, the air flow is evenly blown toward the motor 1, and the heat on the motor 1 is taken away by heat transfer, so that the motor 1 is cooled, so that the self-cooling fan can operate for a long time in a high-temperature environment.
[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A self-cooling fan, comprising a motor (1) and a guide shell (2), characterized in that: One end of the motor (1) is fixed inside the guide shell (2), and the other end of the motor (1) is located outside the guide shell (2). A through hole (3) is formed between the inner wall of the guide shell (2) and the motor (1). The rotating shaft (4) of the motor (1) is coaxially fixedly connected with the fan blade (5). The guide shell (2) is fixed with a gathering cover (6) at one end close to the rotating shaft (4). The fan blade (5) is located inside the gathering cover (6). The end of the gathering cover (6) away from the motor (1) is an air inlet (7). The end of the guide shell (2) close to the motor (1) is an air outlet (8). The through hole (3) is located between the air inlet (7) and the air outlet (8). Air flows into the air inlet (7), and the air flows out of the air outlet (8) through the through hole (3).
2. A self-cooling fan according to claim 1, characterized in that: A plurality of guide plates (9) are provided in the through hole (3), one end of the guide plate (9) is fixed to the inner wall of the guide shell (2), and the other end of the guide plate (9) is fixed to the outer shell of the motor (1).
3. A self-cooling fan according to claim 2, characterized in that: The guide plates (9) are evenly spaced and arranged, and the guide plates (9) divide the through hole (3) into a plurality of guide holes (10).
4. A self-cooling fan according to claim 2 or 3, characterized in that: The edges of the guide plates (9) are all provided with chamfers (11).
5. The self-cooling fan according to claim 1, characterized in that: The gathering cover (6) is provided with a first flange (12) at one end away from the fan blades (5), and the guide shell (2) is provided with a second flange (13) at one end close to the motor (1).
6. The self-cooling fan according to claim 1, characterized in that: The guide shell (2) is integrally formed with a first annular plate (14) at one end close to the gathering hood (6), and the guide shell (2) is integrally formed with a second annular plate (15) at one end close to the gathering hood (6). The first annular plate (14) and the second annular plate (15) are coaxially fixed, and the first annular plate (14) is located outside the second annular plate (15). A fixing component is provided between the gathering hood (6) and the guide shell (2), and the fixing component is used to connect the gathering hood (6) and the guide shell (2).
7. The self-cooling fan according to claim 6, characterized in that: The fixing assembly includes a plurality of first protrusions (16) integrally formed at one end of the gathering cover (6) and a plurality of second protrusions (17) integrally formed at one end of the guide shell (2), wherein a first hole (18) is provided on the first protrusion (16), and a second hole (19) is provided on the second protrusion (17), the first hole (18) and the second hole (19) being matched with each other, a bolt is provided between the first protrusion (16) and the second protrusion (17), and the bolt passes through the first hole (18) and the second hole (19) to fix the guide shell (2) and the gathering cover (6).
8. The self-cooling fan according to claim 7, characterized in that: The motor (1) is provided with a plurality of heat dissipation slots (20), and the heat dissipation slots (20) are evenly spaced.