Desktop fan

Abstract

The utility model discloses a desktop fan which comprises an air guide module, a fan module and a comprehensive module, the fan module is fixedly installed on the comprehensive module, a gradually-shrunk flow guide body is arranged in the center of the interior of the comprehensive module, and a plurality of air inlets are formed in the side wall of the comprehensive module. By means of the flow guide body, airflow can be guided to stably enter the fan module from the air inlet, airflow turbulence and noise are effectively reduced, and the effect that the desktop fan operates at low noise is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a desktop fan. Background Technology

[0002] Desktop fans, as small air-purifying devices widely used in offices and homes, primarily function to provide air circulation and cooling for a localized area. However, traditional desktop fans have long suffered from inherent limitations in design and function, impacting user experience and effectiveness.

[0003] Traditional desktop fans cannot distribute airflow effectively and are not gentle enough, resulting in significant noise.

[0004] Traditional desktops also suffer from problems such as fixed fan airflow direction that cannot be adjusted and fans taking up desktop space, resulting in poor usability. Utility Model Content

[0005] The main purpose of this invention is to provide a desktop fan that can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A desktop fan includes an air guide module, a fan module, and an integrated module. The fan module is mounted on the integrated module, and the integrated module has a tapered guide fluid inside. The side wall of the integrated module has several air inlets. The guide fluid can guide airflow smoothly into the fan module from the air inlets.

[0008] The top of the air guide module is provided with an upward-opening storage cavity, which is not connected to the air guide cavity.

[0009] The integrated module includes a data cable storage module, which contains a pull-out and retractable data cable. The end of the data cable has an interface for connecting to an external data cable, serving as an extension of the external data cable for charging.

[0010] The fluid guide has a tapered frustum-shaped structure with a bottom diameter larger than the top diameter.

[0011] The surface of the guide fluid is provided with a plurality of guide grooves along the axial direction, and the depth of the guide grooves gradually decreases from the bottom to the top.

[0012] The air guide module is provided with an air guide cavity, which has a wave-shaped curved structure.

[0013] The fan module includes an air inlet, a fan, and an air outlet. The air inlet of the fan module is provided with a radial grille support. The central solid shape of the grille support matches the top of the guide tube. The fan is fixedly mounted on the central solid of the grille support. The air outlet is provided with an air outlet grille, which has parallel air outlet grille bars.

[0014] The air guide module is coaxially sleeved outside the fan module. The air inlet is connected to the air intake end. The air guide module includes an air outlet and an air guide cavity. The air guide cavity connects the air outlet end of the fan module with the air outlet of the air guide module. The air guide cavity is provided with a rotatable air guide component at the connection with the air outlet. The air guide cavity bends to the air outlet of the air guide module.

[0015] The air guiding assembly includes two air guiding bars arranged one above the other. The air guiding bars are ring frames with several air guiding grates distributed in parallel inside.

[0016] The air guide is provided with protruding rods at both ends, and the air guide cavity is provided with snap-fit ​​holes that match the protruding rods. The air guide can be rotated by the cooperation of the protruding rods and the snap-fit ​​holes.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By utilizing the guide fluid and guide grooves within the integrated module, airflow is guided smoothly from the air inlet into the fan module, reducing airflow turbulence and noise, thus enabling the desktop fan to operate with low noise.

[0019] 2. Through the wave-shaped curved structure of the air guide cavity, the axial upward airflow is gradually transformed into a gentle radial airflow, which enhances the flexibility and coverage of the air outlet, achieves the effect of uniform air delivery, makes the blown air softer, and effectively reduces noise.

[0020] 3. Through the rotatable air guide and air guide grille in the air guide assembly, users can flexibly adjust the tilt angle of the upper and lower air guides to achieve unidirectional centralized air supply or multidirectional diversion air supply, thus achieving the effect of precise control of the air outlet direction.

[0021] 4. An additional storage compartment at the top of the air guide module provides extra storage space for small items such as pens and keys. A data cable storage module within the integrated module facilitates cable organization, provides power to the fan, and also allows for data transfer, effectively reducing desktop clutter and achieving the goals of minimizing desktop space usage, improving usability, and optimizing space management.

[0022] 5. The anti-slip base under the integrated module can make the desktop fan stable and non-slip on the desktop. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a desktop fan according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the top and side structure of a desktop fan according to an embodiment of the present invention;

[0025] Figure 3 This is a side view of a desktop fan with the air guide module housing and the air guide cavity housing removed, according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the air guide cavity and air guide assembly structure of a desktop fan according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the air guide component structure of a desktop fan according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of a fan module structure for a desktop fan according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the integrated module structure of a desktop fan according to an embodiment of the present utility model;

[0030] Figure 8 This is a schematic diagram of a data cable storage module for a desktop fan according to an embodiment of the present invention.

[0031] In the diagram: 1. Air guide module; 2. Fan module; 3. Integrated module; 11. Air outlet; 12. Air guide cavity; 13. Air guide assembly; 14. Air guide rail; 15. Air guide grille; 16. Protruding rod; 17. Snap-fit ​​hole; 18. Storage cavity; 21. Air inlet; 22. Fan; 23. Air outlet; 24. Grille bracket; 25. Air outlet grille; 26. Air outlet grille; 31. Air inlet; 32. Air guide; 33. Air guide groove; 34. Data cable storage module; 35. Data cable; 36. Interface. Detailed Implementation

[0032] 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.

[0033] Example

[0034] like Figure 1-7As shown, a desktop fan consists of an air guide module 1, a fan module 2, and an integrated module 3 from top to bottom. The fan module 2 is fixedly installed on top of the integrated module 3, and the air guide module 1 is coaxially sleeved on the outside of the fan module 2. The three together form a cylindrical integrated structure.

[0035] The integrated module 3 has five elliptical air inlets 31 evenly distributed around its sidewalls. A guide fluid 32 is fixedly installed at the center of the integrated module 3. The guide fluid 32 has a larger bottom diameter than its top diameter and is a rotationally symmetrical, tapering frustum-shaped structure. Multiple curved guide grooves 33 are formed along its outer surface along the axial direction, with the depth of the guide grooves 33 gradually decreasing from the bottom to the top. Below the guide fluid 32, the integrated module 3 has a data cable storage module 34. The data cable storage module 34 contains a reel mechanism. The data cable 35 is wound around the reel mechanism, and the rotation of the reel mechanism allows the data cable 35 to be pulled out and retracted. The end of the data cable 35 has an interface 36 for connecting to an external data cable. The interface 36 is mounted on a circuit board, and the end of the data cable 35 is electrically connected to the circuit board, thus achieving electrical connection with the interface 36. The other end of the data cable 35 is a connection port, serving as a male connector for connecting to other devices. The side wall of the integrated module 3 has corresponding holes at the connection port of the data cable 35 and at the interface 36. When the external data cable is connected to the interface 36, it can simultaneously power the motor of the fan 22. The interface 36 supports data transmission, allowing the external data cable to transmit data to the connected device via the data cable 35. An anti-slip base is movably connected to the bottom of the integrated module 3. The bottom of the anti-slip base has four adhesive pads that can be pasted onto solid surfaces; the adhesive pads are preferably nano-silicone or double-sided adhesive. Two positioning posts are provided on the bearing surface of the anti-slip base, and the bottom of the integrated module 3 has positioning grooves corresponding to the positioning posts.

[0036] In practical use, the external data cable is connected to interface 36 to power the motor of fan 22, causing fan 22 to start. Through the fan module 2, air enters through the air inlet 31, is guided by the guide channel 33, and flows along the outer wall of the guide channel 32 from the top of the integrated module 3 into the fan module 2. This guides the incoming turbulent airflow and reduces airflow noise. The gradually changing depth design of the guide channel 33 further optimizes the laminar airflow effect. The data cable 35 can be pulled out from the data cable storage module 34 to connect to other devices, enabling charging and data transfer. It can also be retracted to adjust its length. The anti-slip base provides a stable anti-slip effect on the desktop through adhesive, preventing the desktop fan from moving when the data cable 35 is stretched. The integrated module 3 achieves a stable anti-slip effect relative to the desktop by fitting a positioning groove onto the positioning post.

[0037] The fan module 2 has a radial grille support 24 at its bottom, with the central circular solid of the grille support 24 matching the top of the guide fluid 32. Inside the fan module 2, a fan 22 is fixedly mounted on the central circular solid of the grille support 24. A motor is located at the bottom of the fan 22, and the fan 22's airflow direction is vertically upward. The top of the fan module 2 has an air outlet grille 25 with parallel air outlet bars 26.

[0038] In practical use, the motor is started by an external power supply, and the fan 22 is driven by the motor. After the fan 22 starts, it draws in air from the air inlet 21. The air enters the fan module 2 through the air inlet 31, passes through the grille bracket 24, and is generated by the fan 22 to create an axial upward airflow. The airflow passes through the air outlet grille 25 and is divided into multiple fine streams by the air outlet grille bars 26, making the airflow more uniform. The grille bracket 24 serves to support the fan 22 and the motor. The grille bracket 24 and the air outlet grille 25 also have a barrier protection function to prevent organisms from coming into contact with the fan 22 and causing injury, while also protecting the fan 22 from damage.

[0039] The air guide module 1 has an air guide cavity 12 inside. The lower end of the air guide cavity 12 is connected to the air outlet 23, and its size and shape match those of the air outlet 23. The air guide cavity 12 has a wavy, curved structure. The upper end of the air guide cavity 12 bends towards the side wall of the air guide module 1 and connects to the air outlet 11, and its size and shape are consistent with those of the air outlet 11. An air guide assembly 13 is provided at the connection between the air guide cavity 12 and the air outlet 11. The air guide assembly 13 consists of two air guide rails 14, one above the other. The air guide rail 14 is an elliptical ring frame with a significantly extended circumferential height forming a strip-shaped enclosure. Three air guide bars 15 are evenly distributed inside the ring. The air guide bars 15 are parallel to the long axis of the air guide rail 14, and their height is flush with the circumferential height of the air guide rail 14. A cylindrical guide protrusion 16 is provided on the outer side of the apex of the long axis at both ends of the air guide rail 14. The axial direction of the protrusion 16 is perpendicular to the plane of the air guide rail 14. At the connection point between the air guide cavity 12 and the air outlet 11, corresponding positions of the protruding rod 16 are provided with snap-fit ​​holes 17. The snap-fit ​​holes 17 match the protruding rod 16. By inserting the protruding rod 16 into the snap-fit ​​holes 17, the air guide rail 14 can be horizontally pivotally connected, allowing the air guide rail 14 to rotate around the axis of the protruding rod 16. The top of the air guide module 1 is provided with an upward-opening storage cavity 18, and the top of the air guide module 1 is also provided with a button to control the start of the motor.

[0040] In practical use, pressing the start button activates the motor and fan 22, allowing the axial upward airflow passing through the air outlet grille 25 to enter the air guide cavity 12. The curved structure of the air guide cavity 12 gradually changes the airflow direction, transforming the axial upward airflow into a gentler radial airflow, which is then blown out through the two air guide bars 14 of the air guide cavity 12. The air guide bars 14, through the air guide strips 15, protruding rods 16, and snap-fit ​​holes 17, allow control of the airflow direction. Since there is one air guide bar 14 at the top and one at the bottom, when the two air guide bars 14 intersect at an angle, the airflow is split into two opposing streams; when the two air guide bars 14 are parallel, the airflow is unified into a single-direction output. This allows for better control of the airflow direction and improves the user experience of the desktop fan. The storage cavity 18 can be used to place items such as pens and keys, reducing desktop space occupied and compensating for the space occupied by the desktop fan. The storage cavity 18 is physically isolated from the air guide cavity 12 to prevent items from blocking the airflow.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The structures such as fans, motors, switches, interfaces, and connection ports are existing technology and will not be described in detail. The wiring of the fans, motors, switches, interfaces, and connection ports in this utility model is common knowledge in the field, and their working principles are already known technologies. The appropriate model is selected based on actual use; therefore, the control methods and wiring arrangements for fans, motors, switches, interfaces, and connection ports will not be explained in detail. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A desktop fan, comprising an air guide module (1), a fan module (2), and an integrated module (3), characterized in that: The fan module (2) is installed on the integrated module (3). The integrated module (3) has a tapered guide fluid (32) inside and several air inlets (31) are opened on the side wall of the integrated module (3). Through the guide fluid (32), the airflow can be guided to smoothly enter the fan module (2) from the air inlets (31).

2. The desktop fan according to claim 1, characterized in that: The top of the air guide module (1) is provided with an upward-opening storage cavity (18), which is not connected to the air guide cavity (12).

3. The desktop fan according to claim 1 or 2, characterized in that: The integrated module (3) is provided with a data cable storage module (34), which contains a data cable (35) that can be pulled out and retracted. The end of the data cable (35) is provided with an interface (36) for connecting an external data cable, which is used as an extension of the external data cable for charging.

4. The desktop fan according to claim 1, characterized in that: The guide fluid (32) is a tapered frustum-shaped structure with a bottom diameter larger than the top diameter.

5. The desktop fan according to claim 1 or 4, characterized in that: The surface of the guide fluid (32) is provided with a plurality of guide grooves (33) axially, and the depth of the guide grooves (33) gradually decreases from the bottom to the top.

6. The desktop fan according to claim 1, characterized in that: The air guide module (1) is provided with an air guide cavity (12), which is a wave-shaped curved structure.

7. The desktop fan according to claim 5, characterized in that: The fan module (2) includes an air inlet (21), a fan (22), and an air outlet (23). The air inlet (21) of the fan module (2) is provided with a radial fence support (24). The central solid shape of the fence support (24) matches the top of the guide fluid (32). The fan (22) is fixedly mounted on the central solid of the fence support (24). The air outlet (23) is provided with an air outlet fence (25). The air outlet fence (25) is provided with parallel air outlet bars (26).

8. The desktop fan according to claim 6, characterized in that: The air guide module (1) is coaxially sleeved outside the fan module (2). The air inlet (31) is connected to the air inlet end (21). The air guide module (1) includes an air outlet (11) and an air guide cavity (12). The air guide cavity (12) connects the air outlet end (23) of the fan module (2) with the air outlet (11) of the air guide module (1). The air guide cavity (12) is provided with a rotatable air guide component (13) at the connection with the air outlet (11). The air guide cavity (12) bends toward the air outlet (11) of the air guide module (1).

9. The desktop fan according to claim 8, characterized in that: The air guide assembly (13) includes two air guides (14) arranged one above the other. The air guides (14) are ring frames and have several air guide bars (15) distributed in parallel inside.

10. The desktop fan according to claim 9, characterized in that: The air guide (14) has protruding rods (16) at both ends, and the air guide cavity (12) has snap-fit ​​holes (17) that match the protruding rods (16). The air guide (14) can rotate by the cooperation of the protruding rods (16) and the snap-fit ​​holes (17).

Images