A hand-held fan with a base that can be shaken

Abstract

The utility model discloses a kind of hand-held fans of being placed in base can swing head, including swing head base and fan main body, the fan main body is detachably arranged on swing head base, the fan main body includes handle and the fan casing of being arranged on handle, fan casing is equipped with the fan assembly for the air outlet to fan casing side in;The front end of the fan assembly is equipped with semiconductor refrigeration piece, the semiconductor refrigeration piece includes refrigeration end and heat dissipation end, the heat dissipation end is towards fan assembly setting, the refrigeration end is towards air outlet direction setting;The swing head base includes base casing, the base casing is equipped with the swing motor for driving fan main body horizontal swing head in, rotatable rotating disc is connected in the output shaft of swing motor, the fan main body is set on the rotating disc.The utility model whole structure is stable, swing head function operation is more stable, can effectively reduce air outlet temperature simultaneously, provide cool breeze.

Description

Technical Field

[0001] This utility model relates to the field of handheld fan technology, and in particular to a handheld fan that can oscillate when placed on a base. Background Technology

[0002] A handheld fan with an oscillating function that can be used by hand or placed on a flat surface and oscillates left and right. When the fan is placed on the base, it has an automatic left and right oscillation function, which can cover a wider range and provide a more uniform airflow. This type of fan is generally designed to be lightweight and easy to carry, combining the advantages of handheld and table fans. It is suitable for a variety of scenarios and is a commonly used portable cooling device in summer.

[0003] In existing handheld fans with oscillation function that are mounted on a base, the fan may wobble or become unstable when oscillating left and right, affecting the user experience. When used on an uneven table, the fan body is prone to tipping over, especially when the oscillation function is turned on. In addition, users may feel that the air blown by the fan is not cool enough when using it in high-temperature environments, resulting in low comfort. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a handheld fan that can oscillate on a base, with a stable overall structure, smoother operation of the oscillation function, and can effectively reduce the air outlet temperature and provide a cool breeze.

[0005] To solve the above-mentioned technical problems, this utility model provides a handheld fan that can oscillate on a base, including an oscillating base and a fan body. The fan body is detachably mounted on the oscillating base. The fan body includes a handle and a fan housing mounted on the handle. The fan housing contains a fan assembly for discharging air to one side of the fan housing. A semiconductor cooling chip is provided at the front end of the fan assembly. The semiconductor cooling chip includes a cooling end and a heat dissipation end. The heat dissipation end faces the fan assembly, and the cooling end faces the air outlet direction. The oscillating base includes a base housing. An oscillating motor for driving the fan body to oscillate horizontally is provided in the base housing. The output shaft of the oscillating motor is connected to a rotatable rotating disk. The fan body is mounted on the rotating disk, and a baffle is provided around the fan body on the outer edge of the rotating disk.

[0006] By adopting the above technical solution, the fan can oscillate horizontally to deliver air, improving the air delivery range and comfort, and meeting the needs of cold air coverage in different directions. At the same time, by setting a semiconductor cooling chip at the front end of the fan assembly, the semiconductor material generates a temperature difference based on the Peltier effect after being energized. The cooling end is set towards the air outlet direction to directly cool the air flowing through the air duct, thereby outputting cold air. Meanwhile, the heat dissipation end is set towards the fan, so that the high-speed airflow generated during the operation of the fan can scour the heat dissipation end, carrying away the hot air generated by the heat dissipation end. This concentrates the cold air in the middle and diffuses the hot air outward, thereby separating the cold and hot airflows, effectively reducing the temperature in the air outlet direction, and improving the user experience.

[0007] A further feature of this invention is that the upper end of the baffle has an arc-shaped surface.

[0008] By adopting the above technical solution, the curved surface matches the contour of the fan body to form a naturally transitioning guide structure. When the user inserts the fan body into the oscillating base, it can guide the fan body to align with the installation position in the correct direction, thus playing a guiding role and improving the convenience of installation.

[0009] A further feature of this invention is that the base housing is provided with a mounting groove, the rotating disk is installed in the mounting groove, and a charging connector is provided on the mounting groove.

[0010] By adopting the above technical solution, the fan body can automatically complete the charging connection when placed in the base, avoiding the inconvenience caused by frequent plugging and unplugging of data cables, improving the convenience of user operation, and extending the service life of the device.

[0011] A further feature of this invention is that: an air inlet shroud is provided at the rear end of the fan housing, an air outlet shroud is provided at the front end of the fan housing, an air outlet groove is provided on the air outlet shroud, a cooling guide is provided on the air outlet shroud, the cooling guide is attached to the cooling end of the semiconductor refrigeration chip, and the air outlet groove is arranged around the cooling guide.

[0012] By adopting the above technical solution, the cooling component can fully absorb the low temperature generated by the cooling end and efficiently conduct the low temperature to the air outlet area, so that the airflow blown out by the fan assembly is significantly cooled when passing through the air outlet, thereby significantly reducing the outlet air temperature and bringing a more direct cooling effect to the user. In addition, the cooling component is made of materials with excellent thermal conductivity, such as aluminum alloy, which can retain a certain low temperature. Users can put the surface of the cooling component into contact with their skin to bring a continuous cooling experience to the local skin and increase the product's versatility.

[0013] A further feature of this invention is that the handle includes a light-transmitting shell, a flexible PCB board is provided inside the light-transmitting shell, and a plurality of LED beads are provided on the flexible PCB board.

[0014] By adopting the above technical solution, it is not only aesthetically pleasing and practical, but can also be used for nighttime lighting or atmosphere creation. It can also be linked with the switch control of a fan. The flexible circuit structure can adapt to the curved surface design of the handle, which is convenient for production and assembly.

[0015] A further feature of this invention is that the bottom of the rotating disk is provided with multiple grooves, and ball bearings are provided in the grooves, with the ball bearings rollingly engaging with the base housing.

[0016] By adopting the above technical solution, frictional resistance can be reduced when the fan body rotates with the rotating disk, resulting in a smoother oscillation motion.

[0017] A further feature of this invention is that: a first charging power source is provided inside the handle, a conductive sheet is provided at the bottom of the first charging power source, and a charging component that cooperates with the conductive sheet is provided inside the swaying base.

[0018] By adopting the above technical solution, the first charging power supply serves as the internal power supply for the handle, providing stable power to the fan, LED light, and cooling element; the conductive plate is located at the bottom and can connect with the charging component inside the base, making it convenient for users to simply insert the fan into the base for charging without the need to disconnect or unplug it.

[0019] A further feature of this invention is that the charging assembly includes a second charging power supply disposed within the base housing, the charging connector is provided with a plurality of contact pins, a charging circuit board is disposed below the contact pins, the charging circuit board is electrically connected to the second charging power supply, and the conductive sheet abuts against the contact pins.

[0020] By adopting the above technical solution, reliable contact and stable power supply can be ensured, and it can be adapted to multiple plugging and unplugging, making it suitable for frequent daily use.

[0021] A further feature of this invention is that a toggle switch is provided on one side of the handle, and a lever switch is provided at the rear end of the handle.

[0022] By adopting the above technical solution, the fan can be turned on by pressing the toggle switch on one side of the handle. Users can press it once or multiple times as needed to adjust the fan speed level and achieve multi-speed control. At the same time, the fan speed can be switched step by step by moving the toggle switch up and down on one side. The operation mode is diverse and improves the ease of use. By moving the lever switch located at the rear of the handle, the thermoelectric cooler can be controlled independently, which makes it convenient for users to control the temperature.

[0023] A further feature of this invention is that the handle has multiple raised ribs, and the baffle has corresponding slots, with the raised ribs engaging with the slots.

[0024] By adopting the above technical solution, the fan body and the rotating disk can be quickly disassembled and assembled, which is convenient for users to assemble, clean and maintain.

[0025] The beneficial effects of this utility model are:

[0026] This invention improves the stability of the fan by setting a baffle around the outer edge of the rotating disk to effectively prevent the fan body from shifting or shaking during the oscillation process.

[0027] This invention, by setting a semiconductor cooling chip with its cooling end facing the air outlet direction, combined with a cooling conductor and an air outlet channel, can effectively reduce the air outlet temperature and provide users with a more noticeable cooling sensation; the cold surface generated by the cooling component can also be placed on the skin to achieve cooling, making it particularly suitable for outdoor, hot environments and other multi-scenario applications.

[0028] This invention effectively reduces rotational friction resistance by setting multiple grooves at the bottom of the rotating disk to cooperate with ball bearings, thereby making the oscillation function operate more smoothly during the horizontal oscillation process of the fan body.

[0029] The bidirectional charging structure effectively extends the overall battery life of the fan, preventing the oscillating base or the fan body from stopping working due to the power of one of the power sources running out. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model.

[0031] Figure 2 This is a schematic diagram of the fan body in Example 1.

[0032] Figure 3 This is a schematic diagram of the oscillating base in Example 1.

[0033] Figure 4 This is a schematic diagram of the fan body in Embodiment 2.

[0034] Figure 5 This is a schematic diagram of the oscillating base in Embodiment 2.

[0035] Figure 6 This is a cross-sectional view of the fan body of this utility model.

[0036] Figure 7 This is a cross-sectional view of the swaying base of this utility model.

[0037] In the diagram: 1. Oscillating base; 2. Fan body; 3. Handle; 4. Fan housing; 5. Fan assembly; 6. Base housing; 7. Oscillating motor; 8. Rotating disc; 9. Baffle; 10. Semiconductor cooling chip; 11. Mounting slot; 12. Charging connector; 13. Air inlet cover; 14. Air outlet cover; 15. Air outlet slot; 16. Cooling component; 17. Translucent housing; 18. Flexible PCB board; 19. Groove; 20. Ball bearing; 21. First charging power supply; 22. Conductive sheet; 23. Second charging power supply; 24. Contact pin; 25. Charging circuit board; 26. Toggle switch; 27. Lever switch; 28. Hook; 29. ​​Ring groove; 30. Washer; 31. Rib; 32. Slot; 33. Cooling end; 34. Heat dissipation end; 35. Curved surface. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0039] Example 1:

[0040] according to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, this utility model discloses a handheld fan that can oscillate on a base, comprising an oscillating base 1 and a fan body 2. The fan body 2 can be easily disassembled and installed on the oscillating base 1. It can be used by hand or placed on the base. The fan body 2 consists of a handle 3 and a fan housing 4 mounted on the handle 3. The fan housing 4 contains a fan assembly 5 responsible for generating a strong and stable airflow. A semiconductor cooling chip 10 is installed at the front end of the fan body 2, which further reduces the outlet air temperature during fan operation, providing a cool breeze. The semiconductor cooling chip 10 is a cooling element based on the Peltier effect. The device uses alternating positive and negative semiconductor materials. When current is passed through, heat absorption and heat release occur at the cooling end 33 and the heat dissipation end 34 of the device, respectively, thus achieving the effect of cooling at one end and heating at the other. The cooling end 33 is oriented towards the air outlet to quickly reduce the air outlet temperature and achieve cold air output. The heat dissipation end 34 is oriented towards the fan side. When the fan is working, the high-speed airflow generated by the fan assembly 5 can continuously scour the heat dissipation end 34, carrying away the heat it generates in time. This concentrates the cold air in the middle and diffuses the hot air outward, thereby separating the cold and hot airflows and effectively reducing the temperature in the air outlet direction.

[0041] The oscillating base 1 includes a base housing 6, inside which is installed an oscillating motor 7 that drives the fan body 2 to oscillate left and right. The oscillating motor 7 is connected to a rotating disk 8 on the base housing 6. Driven by the oscillating motor 7, the rotating disk 8 can rotate, thereby realizing the left and right oscillation function of the fan body 2, giving the fan a larger air delivery range and improving comfort. The rotating disk 8 on the base housing 6 is also provided with a baffle 9 surrounding the fan body 2. The baffle 9 is annular, and the upper end of the baffle 9 is provided with an arc surface 35. The baffle 9 makes the fan body 2 more stable when rotating.

[0042] The rear end of the fan housing 4 is provided with an air inlet shroud 13 to ensure that air enters the fan assembly 5 smoothly, while the front end air outlet shroud 14 discharges cold air through the air outlet slot 15. The cooling conductor 16 provided on the air outlet shroud 14 is in close contact with the front end face of the semiconductor cooling chip 10. Through the low temperature conducted by the cooling chip, the cooling conductor 16 can significantly improve the cooling effect of the air outlet. The air outlet slot 15 is arranged around the cooling conductor 16 to make the cold air evenly distributed when it is discharged, providing a more comfortable cold air experience. The cooling conductor 16 is made of a material with excellent thermal conductivity, which allows the fan to retain a certain low temperature. In this state, the user can directly contact the surface of the cooling conductor 16 with sensitive skin areas such as the forehead, neck, and wrists to bring a continuous cooling experience to the local skin.

[0043] The base housing 6 has a mounting slot 11, in which the rotating disk 8 is installed. The mounting slot 11 also has a charging connector 12. The handle 3 of the fan has a built-in first charging power supply 21. The bottom of the first charging power supply 21 has a conductive plate 22. When the fan body 2 is installed on the oscillating base 1, the conductive plate 22 contacts the charging connector 12 on the base. The oscillating base 1 has a charging assembly, which includes a second charging power supply 23 installed in the base housing 6. The charging connector 12 is equipped with multiple contact pins 24, which are connected to a charging circuit board 25 located below it. The charging circuit board 25 is connected to the second charging power supply 23. When the fan body 2 is placed on the oscillating base 1, the conductive plate 22 in the handle 3 contacts the contact pins 24 on the charging connector 12. Through the charging circuit board 25, the first charging power supply 21 and the second charging power supply 23 in the handle 3 can charge each other. This structure not only allows the fan body 2 to be easily detached from the oscillating base 1 for handheld use, but also ensures convenient charging via the base when not using the handheld function, thus guaranteeing the fan's battery life.

[0044] The handle 3 includes a light-transmitting shell 17, inside which is a flexible PCB board 18. The flexible PCB board 18 has multiple LED beads, which can display traditional numbers and other animation effects. The flexible PCB board 18 is easy to adapt to the curved design of the handle, improving the overall aesthetics.

[0045] A toggle switch 26 is provided on one side of the handle 3, and a lever switch 27 is provided at the rear of the handle 3. The lever switch 27 has three positions: the first position is the off state, the second position is the single fan on mode, and the third position is the semiconductor cooling mode. The toggle switch 26 can be operated by pressing or moving up and down. The pressing operation is mainly for turning on the machine and quickly adjusting the gear; the moving up and down operation is for precise gear adjustment.

[0046] The bottom of the rotating disk 8 is provided with multiple grooves 19, and ball bearings 20 are provided in the grooves 19. The ball bearings 20 roll in cooperation with the base housing 6. These ball bearings 20 are used to reduce the friction when the rotating disk 8 rotates, thereby effectively reducing friction during rotation and improving the smoothness of the oscillation.

[0047] The bottom of the handle 3 is provided with a hook 28, which makes it easy to hang the fan. The bottom of the handle 3 is also provided with a ring groove 29, and a washer 30 is provided in the ring groove 29.

[0048] In this practical embodiment, the fan body 2 is installed onto the oscillating base 1, and the conductive plate 22 at the bottom of the handle 3 contacts the charging connector 12 pin 24 on the base. The power cord is connected to supply power to the second charging power supply 23 of the oscillating base 1, thereby charging the first charging power supply 21 inside the fan body 2. After daily use, the first charging power supply 21 and the second charging power supply 23 can also charge each other to ensure that the fan body 2 and the oscillating base 1 have sufficient power. When using it by hand, press the fan body 2 to remove it from the oscillating base 1, and pull down the lever switch 27 located at the rear end of the handle 3. Use the lever switch 26 to adjust the wind speed. The second speed is the single fan on mode, the fan assembly 5 starts to operate, and the fan starts blowing air. The third speed is the semiconductor cooling mode, the semiconductor cooling chip 10 starts to work, further reducing the outlet air temperature and providing a cool breeze. Install the fan body 2 onto the oscillating base 1, ensuring that the conductive plate 22 contacts the charging connector 12 pin 24 well, press the oscillating switch button, and the oscillating motor 7 inside the base starts, driving the rotating disc 8 and the fan body 2 to oscillate left and right, expanding the air delivery range.

[0049] Example 2:

[0050] according to Figure 4 and Figure 5 As shown, this embodiment further optimizes the connection stability structure between the fan body 2 and the rotating disk 8 based on embodiment 1. Specifically, multiple axially extending ribs 31 are provided on the handle 3 of the fan body 2, and slots 32 corresponding to the ribs 31 are provided on the inner wall of the baffle 9 surrounding the handle 3 on the rotating disk 8. The number and position of the ribs 31 and slots 32 correspond precisely. During installation, by inserting the lower end of the handle 3 into the rotating disk 8, the ribs 31 can be accurately inserted into the slots 32, thereby achieving positioning and mating.

[0051] This structural design effectively prevents the fan body 2 from sliding relative to the rotating disk 8. During the process of the oscillating motor 7 driving the fan to oscillate left and right, it can significantly improve the operational stability of the fan body 2, avoid the problem of offset and shaking caused by inertia, and does not affect the overall ease of disassembly and assembly, thereby improving the product's service life and user experience.

[0052] In this embodiment, the fan body 2 is installed onto the oscillating base 1, ensuring that the protruding rib 31 is inserted into the slot 32. The conductive plate 22 at the bottom of the handle 3 contacts the contact pin 24 of the charging connector 12 on the base. The power cord is connected to supply power to the second charging power supply 23 of the oscillating base 1, thereby charging the first charging power supply 21 inside the fan body 2. After daily use, the first charging power supply 21 and the second charging power supply 23 can also charge each other to ensure sufficient power for both the fan body 2 and the oscillating base 1. When using by hand, press the fan body 2 to detach it from the oscillating base 1. Next, pull down the lever switch 27 located at the rear of the handle 3. Use the lever switch 26 to adjust the wind speed. The second speed is the single fan on mode, where the fan assembly 5 starts to operate and the fan starts blowing air. The third speed is the semiconductor cooling mode, where the semiconductor cooling chip 10 starts to work, further reducing the outlet air temperature and providing a cool breeze. Install the fan body 2 onto the oscillating base 1, ensuring that the conductive plate 22 makes good contact with the contact pin 24 of the charging connector 12. Press the oscillating switch button, and the oscillating motor 7 in the base starts, driving the rotating disc 8 and the fan body 2 to oscillate left and right, expanding the air delivery range.

[0053] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A handheld fan that can oscillate on a base, comprising an oscillating base (1) and a fan body (2), characterized in that: The fan body (2) is detachably mounted on the oscillating base (1). The fan body (2) includes a handle (3) and a fan housing (4) mounted on the handle (3). The fan housing (4) contains a fan assembly (5) for discharging air to one side of the fan housing (4). The front end of the fan assembly (5) is provided with a semiconductor cooling chip (10). The semiconductor cooling chip (10) includes a cooling end (33) and a heat dissipation end (34). The heat dissipation end (34) is positioned towards the fan assembly (5), and the cooling end (33) is positioned towards the air outlet direction. The oscillating base (1) includes a base housing (6). The base housing (6) contains a fan assembly for driving the fan body (2) horizontally. A oscillating motor (7) for oscillating, the output shaft of which is connected to a rotatable rotating disk (8), the fan body (2) is mounted on the rotating disk (8), the outer edge of the rotating disk (8) is provided with a baffle (9) surrounding the fan body (2), the rear end of the fan housing (4) is provided with an air inlet shroud (13), the front end of the fan housing (4) is provided with an air outlet shroud (14), the air outlet shroud (14) is provided with an air outlet groove (15), the air outlet shroud (14) is provided with a cooling guide (16), the cooling guide (16) is attached to the cooling end (33) of the semiconductor cooling chip (10), and the air outlet groove (15) surrounds the cooling guide (16).

2. A handheld fan that can oscillate on a base according to claim 1, characterized in that: The upper end of the baffle (9) is provided with an arc-shaped surface (35).

3. A handheld fan that can oscillate on a base according to claim 1, characterized in that: The base housing (6) is provided with a mounting groove (11), the rotating disk (8) is installed in the mounting groove (11), and the mounting groove (11) is provided with a charging connector (12).

4. A handheld fan that can oscillate on a base according to claim 1, characterized in that: The handle (3) includes a light-transmitting shell (17), inside which is a flexible PCB board (18), on which are multiple LED beads.

5. A handheld fan that can oscillate on a base according to claim 1, characterized in that: The bottom of the rotating disk (8) is provided with multiple grooves (19), and the grooves (19) are provided with balls (20), which are in rolling engagement with the base housing (6).

6. A handheld fan that can oscillate on a base according to claim 3, characterized in that: The handle (3) is provided with a first charging power source (21), and the bottom of the first charging power source (21) is provided with a conductive sheet (22). The swaying base (1) is provided with a charging component that cooperates with the conductive sheet (22).

7. A handheld fan that can oscillate on a base according to claim 6, characterized in that: The charging assembly includes a second charging power supply (23) disposed in the base housing (6), a plurality of contact pins (24) are provided on the charging connector (12), a charging circuit board (25) is provided below the contact pins (24), the charging circuit board (25) is electrically connected to the second charging power supply (23), and the conductive sheet (22) abuts against the contact pins (24).

8. A handheld fan that can oscillate on a base according to claim 1, characterized in that: A toggle switch (26) is provided on one side of the handle (3), and a lever switch (27) is provided at the rear end of the handle (3).

9. A handheld fan that can oscillate on a base according to claim 1, characterized in that: The handle (3) is provided with multiple protruding ribs (31), and the baffle (9) is provided with corresponding slots (32). The protruding ribs (31) are inserted into the slots (32).

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