Portable fan with air guide structure

Abstract

The utility model discloses a portable fan with an air guide structure, which comprises a fan shell, an air outlet net is mounted at the top of the fan shell, and an air inlet net is mounted at the bottom of the fan shell; an air guide structure is installed in the fan shell, located at the bottom of the air outlet net and communicated with the air outlet net, a motor is installed on the air guide structure, fan blades are installed on an output shaft of the motor, and air guide grooves are formed in the air guide structure and distributed around the motor. The portable fan has the advantage of being good in cooling effect, and the problems that in the using process of an existing portable fan, air flow in the fan is inconvenient to concentrate and orient, air flow generated by the fan is prone to being not concentrated enough, the air supply distance is short, wind power distribution is uneven, and the cooling effect is poor are solved. And the effective cooling range and effect of the portable fan are influenced.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically a portable fan with an air guiding structure. Background Technology

[0002] A portable fan is a small, lightweight electric fan designed for personal use and easy to carry. They are typically battery-powered, allowing users to operate them in places without power outlets, such as outdoors, while traveling, or anywhere cool air is needed. Portable fans come in various sizes and shapes and can be hung around the neck, attached to clothing, clipped to a belt, or placed on the edge of a table, providing instant cooling in hot weather.

[0003] Existing portable fans are not convenient for concentrating and directing the airflow inside the fan during use. This can easily lead to insufficient airflow, resulting in a short air delivery distance, uneven air distribution, and affecting the effective cooling range and effect of the portable fan. Utility Model Content

[0004] The purpose of this invention is to provide a portable fan with an air guiding structure, which has the advantage of good cooling effect. It solves the problem that existing portable fans are not easy to concentrate and direct the air flow inside the fan during use, which easily leads to insufficient air flow, short air delivery distance, uneven air force distribution, and affects the effective cooling range and effect of the portable fan.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable fan with an air guiding structure, including a fan housing,

[0006] An air outlet mesh is installed on the top of the fan housing, and an air inlet mesh is installed on the bottom of the fan housing;

[0007] An air guide structure is installed inside the fan housing. The air guide structure is located at the bottom of the air outlet and is connected to it. A motor is installed on the air guide structure. Fan blades are installed on the output shaft of the motor. Air guide grooves are opened on the air guide structure and are distributed around the motor.

[0008] As a preferred embodiment of the portable fan with an air guiding structure according to this utility model, a cylindrical air duct is provided inside the fan housing, the fan blade is located in the inner cavity of the cylindrical air duct, one end of the cylindrical air duct is connected to the air guide groove on the air guiding structure, and the other end of the cylindrical air duct is connected to the air inlet mesh.

[0009] As a preferred embodiment of the portable fan with an air guiding structure according to the present invention, the surface of the air guiding structure is provided with anti-slip protrusions, and the surface of the fan housing is provided with through holes that cooperate with the anti-slip protrusions.

[0010] As a preferred embodiment of this utility model of a portable fan with an air guiding structure, the surface of the air outlet mesh and the fan housing is provided with a hanging rope hole, a waist clip is fixedly connected to the air outlet mesh, and the waist clip engages with the top of the fan housing and is movably connected to it.

[0011] As a preferred embodiment of this utility model of a portable fan with an air guiding structure, a clothing clip is fixedly connected to the air inlet mesh, and the clothing clip engages with the bottom of the fan housing and is movably connected to it.

[0012] As a preferred embodiment of this utility model of a portable fan with an air guiding structure, an indicator light and a switch button are installed on the surface of the fan housing, and a PCB control board and a battery are installed inside the fan housing. The indicator light and the switch button are electrically connected to the PCB control board, and the PCB control board is electrically connected to the battery.

[0013] As a preferred embodiment of this utility model of a portable fan with an air guiding structure, a charging interface is installed on the PCB control board, the charging interface is electrically connected to the PCB control board, and a charging hole for use with the charging interface is provided on the air inlet mesh.

[0014] As a preferred embodiment of this utility model of a portable fan with an air guiding structure, the surface of the air outlet mesh is provided with a first slot, and the top of the inner wall of the fan housing is fixedly connected with a first buckle, which engages with the first slot to fix the air outlet mesh.

[0015] As a preferred embodiment of this utility model of a portable fan with an air guiding structure, the surface of the air inlet mesh is provided with a second slot, and the bottom of the inner wall of the fan housing is fixedly connected with a second buckle, which engages with the second slot to fix the air inlet mesh.

[0016] As a preferred embodiment of this utility model of a portable fan with an air guiding structure, the air guiding structure is provided with mounting holes, and the top of the inner cavity of the fan housing is provided with mounting posts. The mounting holes and mounting posts are connected by bolts to fix the air guiding structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model uses a motor to drive the fan blades to rotate. Due to the rotation of the fan blades, a low-pressure zone is formed inside the cylindrical air duct. This causes external air to be drawn into the cylindrical air duct through the air inlet mesh. The cylindrical air duct initially guides and concentrates the airflow direction, allowing the air to flow more smoothly through the air guide structure. When the air flows through the air guide structure, it directly enters the air guide grooves on the air guide structure. The design of the air guide grooves surrounding the motor can effectively further adjust the direction and intensity of the airflow, ensuring that the airflow can flow to the air outlet mesh in the optimal way. After the airflow is optimized by the air guide grooves, it is finally discharged from the fan evenly and centrally through the air outlet mesh. The air outlet mesh not only protects the internal components but also helps to further rectify the airflow, making the blown air more stable and comfortable. The entire air outlet process, through the cooperation of the air guide structure and the cylindrical air duct, effectively improves the guidance and efficiency of the airflow, making the airflow more concentrated, increasing the air delivery distance, reducing energy loss, and lowering the noise level, providing users with an efficient, quiet, and comfortable user experience. Attached Figure Description

[0019] Figure 1 This is an isometric drawing of the present invention;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a bottom view of the present invention;

[0023] Figure 5 For the purpose of this utility model explosion Figure 1 ;

[0024] Figure 6 For the purpose of this utility model explosion Figure 2 .

[0025] In the diagram: 1. Fan housing; 2. Air outlet mesh; 3. Hanging rope hole; 4. Waist clip; 5. Indicator light; 6. Switch button; 7. Clothes clip; 8. Anti-slip protrusion; 9. Air inlet mesh; 10. Charging interface; 11. Air guide structure; 12. Fan blade; 13. Battery; 14. Cylindrical air duct; 15. Second slot; 16. Charging hole; 17. Second clip; 18. PCB control board; 19. First clip; 20. Motor; 21. Air guide channel; 22. First slot; 23. Mounting hole; 24. Mounting post; 25. Through hole. Detailed Implementation

[0026] Please see Figures 1-6 A portable fan with an air guiding structure includes a fan housing 1, an air outlet mesh 2 installed on the top of the fan housing 1, and an air inlet mesh 9 installed on the bottom of the fan housing 1.

[0027] Furthermore, an air guide structure 11 is installed inside the fan housing 1. The air guide structure 11 is located at the bottom of the air outlet 2 and is connected to it. A motor 20 is installed on the air guide structure 11. The output shaft of the motor 20 is equipped with fan blades 12. An air guide groove 21 is opened on the air guide structure 11 and is distributed around the motor 20.

[0028] Furthermore, a cylindrical air duct 14 is provided inside the fan housing 1, and the fan blade 12 is located in the inner cavity of the cylindrical air duct 14. One end of the cylindrical air duct 14 is connected to the air guide groove 21 on the air guide structure 11, and the other end of the cylindrical air duct 14 is connected to the air inlet net 9.

[0029] When the portable fan starts, the motor 20 drives the fan blades 12 to rotate. Due to the rotation of the fan blades 12, a low-pressure area is formed inside the cylindrical air duct 14. This causes external air to be drawn into the cylindrical air duct 14 through the air inlet mesh 9. The cylindrical air duct 14 initially guides and concentrates the airflow direction, allowing the air to flow more smoothly into the air guide structure 11. When the air flows into the air guide structure 11, it directly enters the air guide grooves 21 on the air guide structure 11. The design of the air guide grooves 21 surrounding the motor 20 can effectively further adjust the direction and intensity of the airflow, ensuring that the airflow can reach its maximum speed. The airflow flows in an optimized manner towards the air outlet 2. After being optimized by the air guide 21, the airflow is finally discharged from the fan evenly and in a concentrated manner through the air outlet 2. The air outlet 2 not only protects the internal components but also helps to further rectify the airflow, making the blown air more stable and comfortable. The entire air outlet process is achieved through the cooperation of the air guide structure 11 and the cylindrical air duct 14, which effectively improves the directionality and efficiency of the airflow, making the airflow more concentrated, increasing the air delivery distance, reducing energy loss, and lowering the noise level, providing users with an efficient, quiet, and comfortable user experience.

[0030] Furthermore, both the air outlet mesh 2 and the air inlet mesh 9 are surrounded by fan-shaped holes, the positions of which correspond to the air guide groove 21.

[0031] By setting fan-shaped holes, it is easy for outside air to pass through the air inlet net 9 and enter the cylindrical air duct 14, and it is also easy for the air outlet net 2 to discharge cold air. The position of the fan-shaped holes corresponds to the air guide groove 21, which makes the airflow more concentrated and directional, thereby improving the air delivery distance and intensity.

[0032] Furthermore, the surface of the air guide structure 11 is provided with anti-slip protrusions 8, and the surface of the fan housing 1 is provided with through holes 25 that cooperate with the anti-slip protrusions 8.

[0033] By setting the anti-slip protrusions 8, it is easy for users to carry. When the user holds it, their fingers pass through the through hole 25 and hold it on the surface of the anti-slip protrusions 8, preventing the fan from falling off the user's hand.

[0034] Furthermore, the surfaces of the air outlet 2 and the fan housing 1 are provided with hanging rope holes 3, and a waist clip 4 is fixedly connected to the air outlet 2. The waist clip 4 engages with the top of the fan housing 1 and is movably connected to it.

[0035] Furthermore, a clothes clip 7 is fixedly connected to the air inlet mesh 9, and the clothes clip 7 engages with the bottom of the fan housing 1 and is movably connected to it.

[0036] By setting a lanyard hole 3, users can easily attach a lanyard to hang the fan around their neck. By setting a waist clip 4, users can easily hang the fan on their belt for blowing air. By setting a clothing clip 7, users can easily hang the fan on the bottom of their shirt for blowing air. With multiple carrying options, users can use the fan in different scenarios.

[0037] Furthermore, an indicator light 5 and a switch button 6 are installed on the surface of the fan housing 1, and a PCB control board 18 and a battery 13 are installed inside the fan housing 1. The indicator light 5 and the switch button 6 are electrically connected to the PCB control board 18, and the PCB control board 18 is electrically connected to the battery 13.

[0038] Furthermore, a charging interface 10 is installed on the PCB control board 18, and the charging interface 10 is electrically connected to the PCB control board 18. A charging hole 16 is provided on the air intake mesh 9 to be used in conjunction with the charging interface 10.

[0039] When starting and stopping the fan, the user presses the switch button 6. The switch button 6 transmits a signal to the PCB control board 18, which controls the motor 20. The indicator light 5 displays the working status of the motor 20 for the user to observe. The battery 13 supplies power to the electrical components. When the battery 13 needs to be charged, the charging head is inserted into the charging interface 10 through the charging hole 16. The charging interface 10 charges the battery 13 through the charging circuit on the PCB control board 18.

[0040] Furthermore, a first slot 22 is provided on the surface of the air outlet 2, and a first buckle 19 is fixedly connected to the top of the inner wall of the fan housing 1. The first buckle 19 is engaged in the first slot 22 to fix the air outlet 2.

[0041] Furthermore, a second slot 15 is provided on the surface of the air inlet mesh 9, and a second buckle 17 is fixedly connected to the bottom of the inner wall of the fan housing 1. The second buckle 17 is engaged in the second slot 15 to fix the air inlet mesh 9.

[0042] The use of the first slot 22 and the first buckle 19 facilitates the installation of the air outlet mesh 2, and the use of the second slot 15 and the second buckle 17 facilitates the installation of the air inlet mesh 9. This installation method reduces the difficulty of assembly and increases the assembly efficiency of the staff.

[0043] Furthermore, the air guide structure 11 is provided with mounting holes 23, and the top of the inner cavity of the fan housing 1 is provided with mounting posts 24. The mounting holes 23 and mounting posts 24 are connected by bolts to fix the air guide structure 11.

[0044] By using the mounting hole 23 and the mounting post 24 together, the air guide structure 11 can be stably installed inside the fan housing 1, preventing the air guide structure 11 from shaking during operation.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable fan with an air guiding structure, comprising a fan housing (1), characterized in that: An air outlet mesh (2) is installed on the top of the fan housing (1), and an air inlet mesh (9) is installed on the bottom of the fan housing (1); The fan housing (1) is equipped with an air guide structure (11), which is located at the bottom of the air outlet (2) and communicates with it. A motor (20) is installed on the air guide structure (11), and a fan blade (12) is installed on the output shaft of the motor (20). An air guide groove (21) is provided on the air guide structure (11), and the air guide groove (21) is distributed around the motor (20).

2. A portable fan with an air guiding structure according to claim 1, characterized in that: The fan housing (1) has a cylindrical air duct (14) inside. The fan blade (12) is located in the inner cavity of the cylindrical air duct (14). One end of the cylindrical air duct (14) is connected to the air guide groove (21) on the air guide structure (11), and the other end of the cylindrical air duct (14) is connected to the air inlet net (9).

3. A portable fan with an air guiding structure according to claim 2, characterized in that: The air guide structure (11) has anti-slip protrusions (8) on its surface, and the fan housing (1) has through holes (25) that cooperate with the anti-slip protrusions (8) on its surface.

4. A portable fan with an air guiding structure according to claim 1, characterized in that: The air outlet mesh (2) and the fan housing (1) are provided with hanging rope holes (3). A waist clip (4) is fixedly connected to the air outlet mesh (2). The waist clip (4) engages with the top of the fan housing (1) and is movably connected to it.

5. A portable fan with an air guiding structure according to claim 1, characterized in that: A clothes clip (7) is fixedly connected to the air inlet mesh (9), and the clothes clip (7) engages with the bottom of the fan housing (1) and is movably connected to it.

6. A portable fan with an air guiding structure according to claim 1, characterized in that: An indicator light (5) and a switch button (6) are installed on the surface of the fan housing (1). A PCB control board (18) and a battery (13) are installed inside the fan housing (1). The indicator light (5) and the switch button (6) are electrically connected to the PCB control board (18), and the PCB control board (18) is electrically connected to the battery (13).

7. A portable fan with an air guiding structure according to claim 6, characterized in that: The PCB control board (18) is equipped with a charging interface (10), which is electrically connected to the PCB control board (18). The air inlet mesh (9) is provided with a charging hole (16) that works with the charging interface (10).

8. A portable fan with an air guiding structure according to claim 1, characterized in that: The surface of the air outlet mesh (2) is provided with a first slot (22), and the top of the inner wall of the fan housing (1) is fixedly connected with a first buckle (19). The first buckle (19) is engaged in the first slot (22) to fix the air outlet mesh (2).

9. A portable fan with an air guiding structure according to claim 1, characterized in that: The air inlet mesh (9) has a second slot (15) on its surface. The bottom of the inner wall of the fan housing (1) is fixedly connected to a second buckle (17). The second buckle (17) is engaged in the second slot (15) to fix the air inlet mesh (9).

10. A portable fan with an air guiding structure according to claim 1, characterized in that: The air guide structure (11) is provided with mounting holes (23), and the top of the inner cavity of the fan housing (1) is provided with mounting posts (24). The mounting holes (23) and mounting posts (24) are connected by bolts to fix the air guide structure (11).

Images