Handheld small fan

Abstract

The utility model discloses a handheld small fan, belongs to the technical field of fans, solves the problem that a handheld fan is inconvenient to carry, and adopts the technical scheme that the handheld small fan comprises a machine body, an air blowing cavity and a battery cavity which are arranged side by side in the left-right direction are arranged in the machine body, and the front end and the rear end of the air blowing cavity are opened; an air blowing motor and blades are arranged in the air blowing cavity, so that air is sucked in from an opening in the rear end of the air blowing cavity, passes through the air blowing cavity and is blown out from an opening in the front end of the air blowing cavity, a battery cell is mounted in the battery cavity, the axis direction of the battery cell is the length direction of the battery cell, and the included angle between the long axis of the battery cell and the front-back direction is alpha, 0 DEG < = alpha < = 10 DEG. The portable fan is mainly used for solving the problem that a handheld fan is inconvenient to carry.

Description

Technical Field

[0001] This application relates to the technical field of fans, in particular to a handheld small fan. Background Art

[0002] With the acceleration of people's living rhythm and the increase in outdoor activities, the demand for portable cooling devices is growing day by day. Handheld fans, due to their small size, light weight, and easy-to-carry characteristics, meet people's need for cooling at any time in outdoor, travel, office and other scenarios. The initial models were relatively simple and were usually powered by dry batteries. The motors of these fans had relatively small power, and the air volume was also relatively weak. However, for consumers at that time, it was already a relatively novel portable cooling tool. Its advantage is that it is convenient to carry and can be used in some occasions without a fixed power source, such as outdoor travel and temporary power outages.

[0003] In the development of handheld fans, the power of the motor has gradually increased, the rotation speed of the fan has increased, and the air volume has also increased accordingly, which can better meet the cooling needs of users. However, at the same time, problems have emerged, such as the motor being too large in volume, inconvenient to carry around, and the body being prone to heat, resulting in a short battery life and other issues. Utility Model Content

[0004] In order to overcome the deficiency of the inconvenient portability of handheld fans in the prior art, this application provides a handheld small fan, which can solve the problem of inconvenient portability of handheld fans.

[0005] To achieve the above object, this application adopts the following technical solution: A handheld small fan includes a body. A blowing cavity and a battery cavity are arranged side by side in the left-right direction inside the body. The front and rear ends of the blowing cavity are open. A blowing motor and blades are arranged in the blowing cavity so that air is inhaled from the opening at the rear end of the blowing cavity, passes through the blowing cavity, and is blown out from the opening at the front end of the blowing cavity. A battery cell is installed in the battery cavity. The axial direction of the battery cell is the length direction of the battery cell, and the included angle between the long axis of the battery cell and the front-rear direction is α, where 0° ≤ α ≤ 10°.

[0006] After adopting the above technical solution, this application has the following advantages: The blowing cavity and the battery cavity are arranged side by side left and right, making the structure of the small fan more compact, facilitating handheld and portability, integrating the functions of blowing and power supply within a limited space without occupying too much space. The battery cell is arranged with a small inclination angle. Compared with the battery cell placed perpendicular to the blowing cavity, it is more ergonomic when held. And because the battery cell and the blowing motor are distributed in the left and right two cavities, the center of gravity of the fan is in the middle position, making the center of gravity distribution more uniform and reasonable when holding the handheld small fan, improving the comfort and stability of holding.

[0007] Furthermore, the blowing cavity is communicated with the battery cavity through a communication hole, so that the gas in the battery cavity can enter the blowing cavity through the communication hole and be carried out of the opening at the front end of the blowing cavity.

[0008] With the foregoing technical solution, during the operation of the battery, certain heat will be generated. The gas in the battery cavity can enter the blowing cavity through the communication hole and be carried out. By using the air flow driven by the blowing motor, the heat generated by the battery can be effectively carried away, greatly enhancing the heat dissipation effect of the battery and reducing the risk of adverse effects on the battery performance and life due to overheating. This air circulation not only helps the battery to dissipate heat, but also improves the working environment inside the entire small fan, reducing problems that may be caused by local heat accumulation or gas retention, improving the overall stability and reliability of the small fan, and also reducing the heat of the battery cavity housing when the user holds the outside of the battery cavity, enhancing the user experience.

[0009] Furthermore, a circuit board is provided in the battery cavity. The circuit board is electrically connected to the blowing motor through a wire. The wire passes through the communication hole, and there is a gap between the wire and the inner wall of the communication hole.

[0010] With the foregoing technical solution, the wire is arranged by using the communication hole, making full use of the existing structural space, making the wiring inside the small fan more neat and compact, avoiding the need for additional wiring space, helping to further reduce the volume of the small fan. The gap between the wire and the inner wall of the communication hole allows air to circulate better between the battery cavity and the blowing cavity. This not only helps the battery to dissipate heat, but also creates certain ventilation conditions for the circuit board, reducing the heat accumulation generated by the circuit board during operation and improving its working stability and life.

[0011] Furthermore, a hanging rope hole is provided on one side of the fuselage where the battery cavity is arranged. The battery cavity is communicated with the outside through the hanging rope hole; and / or, there are gaps or through holes on the fuselage that communicate the battery cavity with the atmosphere.

[0012] With the foregoing technical solution, the hanging rope hole or the through hole can communicate the battery cavity with the outside atmosphere, promoting air circulation, helping the battery to inhale the air with a lower temperature outside the battery cavity during operation, enhancing the convection of the air in the battery cavity, preventing the battery from overheating, extending the service life of the battery, and at the same time ensuring the overall stability of the small fan operation, avoiding affecting the performance of other components such as the motor due to overheating, and facilitating the user to carry the small fan. The small fan can be hung on the wrist, key chain, backpack, etc., increasing the portability and flexibility of use of the small fan, and the small fan can be used anytime and anywhere. These ventilation designs can be skillfully integrated into the appearance design of the small fan without looking obtrusive, making the small fan have better aesthetic appearance while maintaining functionality.

[0013] Further, the battery chamber includes a battery installation chamber and a circuit board installation chamber. The blowing chamber, the circuit board installation chamber, and the battery installation chamber are arranged in sequence. The communication hole communicates the blowing chamber with the circuit board installation chamber, and the circuit board installation chamber communicates with the battery installation chamber.

[0014] With the foregoing technical solution, the communication hole communicates the blowing chamber with the circuit board installation chamber, and the circuit board installation chamber communicates with the battery installation chamber, forming a relatively reasonable air flow path. The air flow generated when the blowing motor works can enter the circuit board installation chamber through the communication hole to dissipate heat from the circuit board, and then enter the battery installation chamber to dissipate heat from the battery, thereby improving the overall heat dissipation effect. And different components may have different requirements for heat dissipation. This way of zoning heat dissipation can more specifically provide heat dissipation for each area, ensuring that the circuit board and the battery can both work at an appropriate temperature and extending their service life.

[0015] Further, a knob for controlling the blowing motor is provided at the front end of the battery chamber, and the knob is arranged side by side with the opening at the front end of the blowing chamber; and / or, at least one button for controlling the blowing motor is provided on the body.

[0016] With the foregoing technical solution, users can choose a more convenient operation method according to their own habits and usage scenarios. For example, when holding the small fan, button operation may be more direct; in some cases, knob control can achieve more precise wind speed adjustment. The reasonably arranged knob and button can be integrated with the appearance design of the small fan, increasing the beauty and fashion sense of the product. The knob arranged side by side with the opening at the front end of the blowing chamber can make the appearance of the small fan more coordinated and not look obtrusive.

[0017] Further, a ring-shaped knob and a lighting lamp fixed to the body and located in the middle of the ring-shaped knob are provided at the front end of the battery chamber. The lighting lamp is arranged side by side with the opening at the front end of the blowing chamber. The ring-shaped knob is used to control the lighting lamp or the blowing motor.

[0018] With the foregoing technical solution, integrating the lighting function with the blowing function on a small fan increases the practicality of the product. When users need lighting, they do not need to carry additional lighting equipment, and one small fan can meet multiple needs. The ring-shaped knob can conveniently control the lighting lamp or the blowing motor, reducing the complexity of operation. The design of the ring-shaped knob and the lighting lamp adds unique appearance elements to the small fan, making it more attractive in appearance. This design can be matched with different styles and scenarios to meet users' needs for personalized products.

[0019] Further, an installation slot for installing a scented tablet is provided at the opening position at the front end of the blowing chamber.

[0020] With the foregoing technical solution, the installation slot can install the fragrance tablet, enabling the small fan to emit fragrance while blowing air, bringing a more comfortable user experience. The fragrance tablet is installed at the opening position at the front end of the blowing cavity, which will not affect the blowing effect of the small fan. The blown air can evenly disperse the fragrance, and at the same time, it will not interfere with the wind force and wind direction.

[0021] Furthermore, an installation groove for clamping a decorative part is provided on the body, and the decorative part is detachably installed on the installation groove.

[0022] With the foregoing technical solution, users can choose different decorative parts according to their own preferences and install them on the small fan, making the small fan have a unique appearance and meeting the user's pursuit of personalized products. The design of the installation groove enables the decorative part to be easily disassembled and installed. When the decorative part is damaged, dirty or needs to be replaced, the user can easily operate to keep the small fan clean and beautiful. The decorative part can be reused, and the user can replace different decorative parts at any time according to their own wishes, extending the service life and freshness of the small fan.

[0023] Furthermore, a protective net is provided at the opening at the rear end of the blowing cavity, and the mesh size of the protective net is less than 5 mm.

[0024] With the foregoing technical solution, the gap of the protective net is smaller than the width of a finger, which can effectively prevent users, especially children, from inserting their fingers into the opening at the rear end of the blowing cavity during use, avoiding finger injuries caused by the high-speed rotating blades, and greatly improving the safety of using the small fan. In addition to preventing fingers from inserting, the protective net can also block other larger foreign objects from entering the blowing cavity, such as branches, paper pieces, etc., thereby protecting the blades and the motor from damage and extending the service life of the small fan. The protective net is usually made of a strong material, such as metal or plastic. It can provide a certain structural support for the rear opening of the small fan, enhance the overall durability of the small fan, and reduce the risk of damage caused by accidental collision or extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following further illustrates the present application with reference to the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of a hand-held small fan of the present application;

[0027] Figure 2 It is the first schematic diagram of the body;

[0028] Figure 3 It is the second schematic diagram of the body;

[0029] Figure 4 It is the first schematic diagram of the interior of the body;

[0030] Figure 5It is the second schematic diagram of the interior of the fuselage;

[0031] Figure 6 It is the third schematic diagram of the interior of the fuselage.

[0032] Description of the drawings: 1. Fuselage; 11. Blowing cavity; 12. Battery cavity; 121. Battery installation cavity; 122. Circuit board installation cavity; 13. Communication hole; 14. Lanyard hole; 15. Installation card slot; 16. Installation groove; 2. Blowing motor; 21. Blades; 3. Battery cell; 4. Ring-shaped knob; 5. Button; 6. Protective net; 7. Lighting lamp. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0034] The terms "first", "second", etc. (if any) in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used before a technical feature to distinguish, it does not necessarily mean that there must be a "first". It should be understood that in the present application, "including" and "having" and any of their variations are intended to cover non-exclusive inclusion. It should be understood that in the present application, "a plurality of" means two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist simultaneously, and Y exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. "Including X, Y and Z", "including X, Y, Z" means that all of X, Y, and Z are included, "including X, Y or Z" means including any one of X, Y, and Z, and "including X, Y and / or Z" means including any one or any two or all three of X, Y, and Z.

[0035] The technical solutions of the present application will be described in detail below with specific embodiments. These specific embodiments below can be combined or replaced according to the actual situation. The same or similar concepts or processes may not be repeated in some embodiments.

[0036] Such as Figures 1 to 6As shown in the figure, the present application provides a handheld small fan, including a body 1. Inside the body 1, there are a blowing cavity 11 and a battery cavity 12 arranged side by side in the left - right direction. The front and rear ends of the blowing cavity 11 are open. Inside the blowing cavity 11, there is a blowing motor 2 and blades 21, so that air is inhaled from the opening at the rear end of the blowing cavity 11, and after passing through the blowing cavity 11, it is blown out from the opening at the front end of the blowing cavity 11. Inside the battery cavity 12, a battery cell 3 is installed. The axial direction of the battery cell 3 is the length direction of the battery cell 3, and the included angle between the long axis of the battery cell 3 and the front - rear direction is α, where 0° ≤ α ≤ 10°.

[0037] After adopting the above - mentioned technical solution, the present application has the following advantages: The blowing cavity 11 and the battery cavity 12 are arranged side by side left - right, making the structure of the small fan more compact, facilitating hand - holding and carrying, integrating the functions of blowing and power supply within a limited space without occupying too much space. The battery cell 3 is arranged with a small inclination angle. Compared with the vertical placement of the battery cell 3, it is more in line with the ergonomic design when holding, making the center - of - gravity distribution more reasonable when holding the handheld small fan, and improving the comfort and stability of hand - holding.

[0038] Specifically, as Figure 6 shown, the included angle between the axis of the battery cell 3 and the long axis of the blowing motor 2 is α. Therefore, when the included angle between the axis of the battery cell and the long axis of the blowing motor is 0°, the fan can be made more compact. So preferably, the long axis of the blowing motor 2 and the axis of the battery cell 3 are parallel.

[0039] Furthermore, the blowing cavity 11 and the battery cavity 12 are connected through a communication hole 13, so that the gas in the battery cavity 12 can enter the blowing cavity 11 through the communication hole 13 and be taken out from the opening at the front end of the above - mentioned blowing cavity 11.

[0040] Adopting the foregoing technical solution, the battery will generate a certain amount of heat during operation. Through the communication hole 13, the gas in the battery cavity 12 can enter the blowing cavity 11 and be taken out. By using the air flow driven by the blowing motor 2, the heat generated by the battery can be effectively taken away, greatly enhancing the heat - dissipation effect of the battery, reducing the risk of adverse effects on the battery performance and life due to overheating. This air circulation not only helps the battery to dissipate heat, but also can improve the working environment inside the entire small fan, reducing problems that may be caused by local heat accumulation or gas retention, improving the overall stability and reliability of the small fan, and also reducing the heat of the outer shell of the battery cavity 12 when the user holds it, increasing the user experience.

[0041] Specifically, as Figure 2 shown, the communication hole 13 can be arranged on the front side of the blade 21. Using Bernoulli's principle, the air in the battery cavity 12 is inhaled into the blowing cavity 11; as Figure 6As shown, the communication holes 13 can also be provided at the rear side of the blade 21. When the blowing motor 2 operates, the air in the pool cavity is directly sucked into the blowing cavity 11.

[0042] Furthermore, a circuit board is provided in the battery cavity 12. The circuit board is electrically connected to the blowing motor 2 through a wire. The wire passes through the communication hole 13, and there is a gap between the wire and the inner wall of the communication hole 13.

[0043] With the foregoing technical solution, the communication holes 13 are used for arranging the wires, making full use of the existing structural space, making the wiring inside the small fan neater and more compact, avoiding the need for additional wiring space, helping to further reduce the volume of the small fan. The gap between the wire and the inner wall of the communication hole 13 allows air to circulate better between the battery cavity 12 and the blowing cavity 11, which not only helps the battery to dissipate heat, but also can create certain ventilation conditions for the circuit board, reducing the heat accumulation generated by the circuit board during operation and improving its working stability and lifespan.

[0044] Furthermore, a hanging rope hole 14 is provided on one side of the body 1 where the battery cavity 12 is provided. The battery cavity 12 communicates with the outside through the hanging rope hole 14, and there is a gap or through hole on the body 1 that enables the battery cavity 12 to communicate with the atmosphere.

[0045] In another embodiment, a hanging rope hole 14 is provided on one side of the body 1 where the battery cavity 12 is provided. The battery cavity 12 communicates with the outside through the hanging rope hole 14.

[0046] In other embodiments, there is a gap or through hole on the body 1 that enables the battery cavity 12 to communicate with the atmosphere.

[0047] With the foregoing three technical solutions, the hanging rope hole 14 or the through hole can allow the battery cavity 12 to communicate with the outside atmosphere, promoting air circulation, helping the battery to suck in the air at a lower temperature from the outside into the battery cavity 12 during operation, enhancing the convection of the air in the battery cavity 12, preventing the battery from overheating, extending the service life of the battery, and at the same time ensuring the overall operation stability of the small fan, avoiding affecting the performance of other components such as the motor due to overheating. It is convenient for users to carry the small fan. They can hang the small fan on the wrist, key chain, backpack, etc., increasing the portability and flexibility of use of the small fan, and being able to use the small fan anytime and anywhere. These ventilation designs can be skillfully integrated into the appearance design of the small fan without looking obtrusive, making the small fan have better aesthetic appearance while maintaining functionality.

[0048] Preferably, the hanging rope hole 14 is provided on the side away from the communication hole 13, so that the air entering from the hanging rope hole 14 can pass through the battery and then flow out from the communication hole 13.

[0049] Further, as Figure 3 shown, the battery chamber 12 includes a battery installation chamber 121 and a circuit board installation chamber 122. The blowing chamber 11, the circuit board installation chamber 122, and the battery installation chamber 121 are arranged in sequence. The communication hole 13 communicates the blowing chamber 11 with the circuit board installation chamber 122, and the circuit board installation chamber 122 communicates with the battery installation chamber 121.

[0050] Adopting the foregoing technical solution, the communication hole 13 communicates the blowing chamber 11 with the circuit board installation chamber 122, and the circuit board installation chamber 122 communicates with the battery installation chamber 121, forming a relatively reasonable air flow path. When the blowing motor 2 works, the airflow generated can enter the circuit board installation chamber 122 through the communication hole 13 to dissipate heat from the circuit board, and then enter the battery installation chamber 121 to dissipate heat from the battery, thereby improving the overall heat dissipation effect. And different components may have different requirements for heat dissipation. This way of zoning heat dissipation can more specifically provide heat dissipation for each area, ensuring that the circuit board and the battery can both work at appropriate temperatures, extending their service lives. In addition, placing the circuit board in the middle of the battery and the blowing motor can make the wiring of the fan more convenient, the circuit shorter, and the weight lighter, enhancing the user experience.

[0051] Further, a knob for controlling the blowing motor 2 is provided at the front end of the battery chamber 12. The knob is arranged side by side with the opening at the front end of the blowing chamber 11, and at least one button 5 for controlling the blowing motor 2 is provided on the body 1.

[0052] In another embodiment, a knob for controlling the blowing motor 2 is provided at the front end of the battery chamber 12. The knob is arranged side by side with the opening at the front end of the blowing chamber 11.

[0053] In other embodiments, at least one button 5 for controlling the blowing motor 2 is provided on the body 1.

[0054] Adopting the foregoing three technical solutions, users can choose a more convenient operation method according to their own habits and usage scenarios. For example, when holding the small fan, the operation of the button 5 may be more direct; in some cases, the knob control can achieve more precise adjustment of the wind speed. The reasonably arranged knob and button 5 can be integrated with the appearance design of the small fan, increasing the aesthetic and fashionable sense of the product. The knob arranged side by side with the opening at the front end of the blowing chamber 11 can make the appearance of the small fan more coordinated and not look obtrusive.

[0055] In another embodiment, as Figure 1As shown, a ring-shaped knob 4 is provided at the front end of the battery chamber 12, and a lighting lamp 7 is located in the middle of the ring-shaped knob 4 and fixed to the fuselage 1. The lighting lamp 7 is arranged side by side with the opening at the front end of the blowing chamber 11. The ring-shaped knob 4 is used to control the lighting lamp 7 or to control the blowing motor 2.

[0056] Adopting the foregoing technical solution, integrating the lighting lamp 7 and the blowing function on a small fan increases the practicality of the product. When users need lighting, they do not need to carry additional lighting equipment, and a small fan can meet multiple needs. The lighting lamp 7 or the blowing motor 2 can be conveniently controlled through the ring-shaped knob 4, reducing the complexity of operation. The design of the ring-shaped knob 4 and the lighting lamp 7 adds unique appearance elements to the small fan, making it more attractive in appearance. This design can be matched with different styles and scenarios to meet users' needs for personalized products.

[0057] Further, as Figure 1 shown, an installation slot 15 for installing a fragrance tablet is provided at the opening position at the front end of the blowing chamber 11.

[0058] Adopting the foregoing technical solution, the installation slot 15 can install a fragrance tablet, enabling the small fan to emit fragrance while blowing, bringing a more comfortable use experience to users. The fragrance tablet is installed at the opening position at the front end of the blowing chamber 11, which will not affect the blowing effect of the small fan. The blown air can evenly disperse the fragrance, and at the same time, it will not interfere with the wind force and wind direction.

[0059] Further, as Figure 1 shown, an installation groove 16 for clamping a decorative part is provided on the fuselage 1, and a decorative part is detachably installed on the installation groove 16.

[0060] Adopting the foregoing technical solution, users can choose different decorative parts according to their own preferences and install them on the small fan, making the small fan have a unique appearance and meeting users' pursuit of personalized products. The design of the installation groove 16 enables the decorative part to be conveniently disassembled and installed. When the decorative part is damaged, dirty or needs to be replaced, users can easily operate to keep the small fan clean and beautiful. The decorative part can be reused, and users can replace different decorative parts according to their own wishes at any time, extending the service life and freshness of the small fan.

[0061] Further, as Figure 4 shown, a protective net 6 is provided at the opening at the rear end of the blowing chamber 11, and the mesh size of the protective net 6 is less than 5 mm.

[0062] With the foregoing technical solution, the gap of the protective net 6 is smaller than the width of a finger, which can effectively prevent users, especially children, from inserting their fingers into the opening at the rear end of the blowing cavity 11 during use, avoiding finger injuries caused by the high-speed rotating blades 21, and greatly improving the safety of using the small fan. In addition to preventing fingers from entering, the protective net 6 can also block other larger foreign objects from entering the blowing cavity 11, such as branches and paper, thereby protecting the blades 21 and the motor from damage and extending the service life of the small fan. The protective net 6 is usually made of a strong material, such as metal or plastic, which can provide certain structural support for the rear opening of the small fan, enhance the overall durability of the small fan, and reduce the risk of damage caused by accidental collision or extrusion.

[0063] Preferably, the protective net includes an air inlet arranged circumferentially for uniform air intake of the blowing cavity 11.

[0064] The specific structure further includes: a USB-C charging port provided at the rear end of the fuselage, which is arranged at the middle position of the rear end of the fuselage, facilitating the static balance of the fuselage. And an air inlet is provided directly below the charging port, which is communicated with the battery cavity, facilitating air convection in the battery cavity and heat dissipation of the charging port, and extending the service life of the charging port; at the front opening of the blowing cavity, there are also circumferentially spaced-apart spokes, which are beneficial for air diversion and preventing users from inserting their fingers into the blowing cavity. And a threaded interface is provided at the opening for connecting and expanding other accessories, which can increase the uses of the handheld small fan; a snap structure is provided at the front end of the battery cavity, which is snap-connected to the knob, and a snap structure is also provided at the front end of the blowing cavity for connecting the protective net provided at the front end of the air outlet cavity. Using the snap structure facilitates the later maintenance and replacement of internal parts, and the button is located directly below the circuit board.

[0065] In addition to the above preferred embodiments, there are other implementation manners for the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope claimed by the present application.

Claims

1. A small handheld fan, comprising a body (1), characterized in that: The body (1) is provided with a blowing chamber (11) and a battery chamber (12) arranged side by side in the left-right direction. The blowing chamber (11) is provided with front and rear openings. The blowing chamber (11) is provided with a blowing motor (2) and blades (21) so that air is sucked in from the opening at the rear end of the blowing chamber (11) and blown out from the opening at the front end of the blowing chamber (11) after passing through the blowing chamber (11). A battery cell (3) is installed in the battery chamber (12). The axial direction of the battery cell (3) is the length direction of the battery cell (3). The angle between the long axis of the battery cell (3) and the front-rear direction is α, and 0°≤α≤10°.

2. A small handheld fan according to claim 1, characterized in that: The blowing chamber (11) is connected to the battery chamber (12) via a connecting hole (13), so that the gas in the battery chamber (12) can enter the blowing chamber (11) through the connecting hole (13) and be carried out of the opening at the front end of the blowing chamber (11).

3. A small handheld fan according to claim 2, characterized in that: A circuit board is provided in the battery cavity (12); the circuit board is electrically connected to the blower motor (2) via a wire; the wire passes through the connecting hole (13); and a gap is provided between the wire and the inner wall of the connecting hole (13).

4. A small handheld fan according to claim 2, characterized in that: A lanyard hole (14) is provided on one side of the fuselage (1) where the battery cavity (12) is arranged, and the battery cavity (12) is connected to the outside world through the lanyard hole (14); and / or a gap or through hole is provided on the fuselage (1) to connect the battery cavity (12) to the atmosphere.

5. A small handheld fan according to claim 2, characterized in that: The battery cavity (12) comprises a battery installation cavity (121) and a circuit board installation cavity (122); the blowing cavity (11), the circuit board installation cavity (122) and the battery installation cavity (121) are arranged in sequence; the connecting hole (13) connects the blowing cavity (11) with the circuit board installation cavity (122); and the circuit board installation cavity (122) with the battery installation cavity (121).

6. A small handheld fan according to claim 1, characterized in that: A knob (4) for controlling the blower motor (2) is provided at the front end of the battery chamber (12), and the knob (4) is arranged side by side with the opening at the front end of the blower chamber (11); and / or at least one button (5) for controlling the blower motor (2) is provided on the body (1).

7. A small handheld fan according to claim 1, characterized in that: The front end of the battery chamber (12) is provided with an annular knob (4) and a lighting lamp (7) located in the middle of the annular knob (4) and fixed to the body (1); the lighting lamp (7) is arranged side by side with the opening at the front end of the blowing chamber (11); the annular knob (4) is used to control the lighting lamp (7) or to control the blowing motor (2).

8. A small handheld fan according to any one of claims 1 to 7, characterized in that: An opening at the front end of the blowing chamber (11) is provided with an installation slot (15) for installing scented sheets.

9. A small handheld fan according to any one of claims 1 to 7, characterized in that: The body (1) is provided with a mounting groove (16) for clamping the decorative piece, and the decorative piece is detachably mounted on the mounting groove (16).

10. A small handheld fan according to any one of claims 1 to 7, characterized in that: A protective net (6) is provided at the opening at the rear end of the blowing chamber (11), and the mesh size of the protective net (6) is less than 5 mm.

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