A handheld oscillating fan

Abstract

This utility model discloses a handheld oscillating fan, including a fan head and a fan handle. The fan head and the fan handle are rotatably connected by an oscillating mechanism. The oscillating mechanism includes a drive motor, a drive gear, and a driven gear. The drive gear is fixedly connected to the output shaft of the drive motor, and the driven gear is meshed with the drive gear. In this utility model, the fan head and the fan handle are connected by an oscillating mechanism, which enables the fan to oscillate and change direction during use. This not only effectively reduces the grip burden when using a handheld fan but also improves the comfort of blowing air. The carabiner not only provides portability for carrying the fan but also, when combined with the oscillating mechanism, allows the fan, which originally only had a handheld function, to be used as an oscillating desktop fan, enriching the fan's usage scenarios and enhancing the practicality of the handheld fan.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically a handheld oscillating fan. Background Technology

[0002] When going out or engaging in outdoor activities in the summer, the weather is quite hot, and there may be situations where there is no air conditioning. In order to make it convenient to cool off at any time, portable fans have emerged and are widely popular because they are easy to carry and can be used anytime.

[0003] Handheld fans are a type of portable fan that requires the user to hold it. While traditional handheld fans offer a degree of portability, prolonged exposure to the airflow can often cause discomfort. To address this, users typically adjust their hand position and grip to change the airflow's location and achieve a more comfortable breeze. However, this constant adjustment can lead to hand fatigue, making traditional handheld fans unsuitable for extended use. This limitation restricts their application and hinders their competitive advantage in the portable fan market. Utility Model Content

[0004] The purpose of this utility model is to provide a handheld oscillating fan. The fan head and the fan handle are connected by an oscillating mechanism, which enables the fan to oscillate and change direction during use. This not only effectively reduces the grip burden when using a handheld fan, but also improves the comfort of blowing air. The carabiner not only makes the fan portable, but also, when combined with the oscillating mechanism, allows the fan, which originally only had a handheld function, to be used as an oscillating desktop fan, enriching the fan's usage scenarios and improving the practicality of the handheld fan, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a handheld oscillating fan, comprising a fan head and a fan handle, wherein the fan head and the fan handle are rotatably connected by an oscillating mechanism, the oscillating mechanism comprising a drive motor, a drive gear and a driven gear, wherein the drive gear is fixedly connected to the output shaft of the drive motor, and the driven gear is meshed with the drive gear.

[0006] Preferably, a connector is fixedly provided on the fan head, and a driven gear is formed on the connector. The drive motor is fixed on the fan handle. Under the driving action of the drive motor, the fan head rotates left and right reciprocating around the driven gear shaft as the central axis.

[0007] Preferably, limit baffles are symmetrically arranged on the left and right sides of the driven gear. The left and right limit baffles are used to define the meshing stroke of the drive gear relative to the driven gear, thereby defining the oscillation amplitude of the fan head.

[0008] Preferably, the fan handle is provided with a motor base, the drive motor is fixed on the motor base, the motor base is provided with a connecting shaft hole, the driven gear shaft is inserted into the connecting shaft hole and rotatably connected to the connecting shaft hole, and the end of the driven gear shaft is encapsulated with a limit screw.

[0009] Preferably, the fan head includes a fan housing, inside which an air passage is formed. The two ends of the air passage are respectively set as an air inlet and an air outlet. An internal support is provided inside the air passage. A fan blade base is provided on the side of the internal support facing the air inlet. A drive fan blade assembly is installed on the fan blade base. A pressurized air shroud is provided around the drive fan blade assembly. The drive fan blade assembly guides the air located at the air inlet into the pressurized air shroud and then blows it out at high speed from the air outlet.

[0010] Preferably, the air inlet is covered with an air inlet cover, the air outlet is covered with an air outlet cover, the air outlet cover is provided with a semiconductor through hole, a hot and cold semiconductor is provided in the semiconductor through hole, the working surface of the hot and cold semiconductor facing the air inlet is thermally connected to a heat sink, and the working surface of the hot and cold semiconductor away from the air inlet is thermally connected to a conductive cover.

[0011] Preferably, the fan handle includes a front handle shell, a rear handle shell, and a bottom handle plate that are connected to each other. A cavity is formed between the front handle shell, the rear handle shell, and the bottom handle plate. A circuit board assembly and a battery are disposed in the cavity, and the battery is electrically connected to the circuit board assembly.

[0012] Preferably, the circuit board assembly is electrically connected to a control button and a USB interface, both of which are located in a pre-set through hole in the back cover of the handle and extend outward from the through hole.

[0013] Preferably, a carabiner is connected to the lower end of the fan handle. The carabiner is clamped between the handle base plate and the handle rear shell and is rotatably connected to the fan handle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention connects the fan head and the fan handle via an oscillation mechanism, enabling the fan to switch directions during use. This not only effectively reduces the grip burden when using a handheld fan but also improves the comfort of blowing air. The carabiner not only makes the fan portable but also, when combined with the oscillation mechanism, allows the fan, which originally only had a handheld function, to be used as an oscillating desktop fan, enriching the fan's usage scenarios and enhancing its practicality. Attached Figure Description

[0016] Figure 1 This utility model is a structural explosion Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This utility model is a structural explosion Figure 2 ;

[0019] Figure 4 This utility model is a structural explosion Figure 3 ;

[0020] Figure 5 This is a schematic diagram of the connector structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the motor mount structure of this utility model.

[0022] In the diagram: 1. Fan head; 11. Conductive cover; 12. Heating and cooling semiconductor; 13. Heat sink; 14. Internal bracket; 141. Fan blade base; 15. Drive fan blade assembly; 16. Boost fan cover; 17. Fan housing; 171. Exhaust cover; 172. Inlet cover; 173. Semiconductor through hole; 18. Connector; 19. Driven gear; 191. Shaft; 192. Limiting baffle; 193. Limiting screw; 2. Fan handle; 21. Handle front shell; 22. Handle rear shell; 23. Handle base plate; 24. Drive motor; 25. Drive gear; 26. Motor mount; 261. Connecting shaft hole; 27. Circuit board assembly; 271. Control button; 272. USB interface; 28. Battery; 3. Carabiner. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6A handheld oscillating fan includes a fan head 1 and a fan handle 2. The fan head 1 and the fan handle 2 are rotatably connected by an oscillating mechanism. The oscillating mechanism includes a drive motor 24, a drive gear 25 and a driven gear 19. The drive gear 25 is fixedly connected to the output shaft of the drive motor, and the driven gear 19 is meshed with the drive gear 25.

[0025] A connector 18 is fixedly mounted on the fan head 1, and a driven gear 19 is formed on the connector 18. Limiting baffles 192 are symmetrically arranged on the left and right sides of the driven gear 19. These limiting baffles 192 define the meshing stroke of the drive gear 25 relative to the driven gear 19, thereby defining the oscillation amplitude of the fan head 1. When the drive motor 24 drives the drive gear 25 to rotate, the drive gear 25 meshes with the driven gear 19, causing the connector 18 to rotate relative to the drive gear 25. During the rotation of the connector 18, when the limiting baffles 192 abut against the drive gear 25, generating rotational resistance, the built-in circuit of the circuit board assembly 27 analyzes the signal changes and sends a commutation command to the working circuit of the drive motor 24, thereby automatically controlling the drive motor. 24 drives the drive motor 25 in the opposite direction. At this time, the fan head 1 changes direction under the drive of the connector 18 and rotates in the opposite direction to the previous direction, thereby realizing the function of the fan head 1 oscillating and changing direction. The fan handle 2 is provided with a motor base 26, and the drive motor 24 is fixed on the motor base 26. The drive motor 24 is fixed on the fan handle 2 through the motor base 26. The motor base 26 is provided with a connecting shaft hole 261. The driven gear shaft 191 is inserted into the connecting shaft hole 261 and is rotatably connected to the connecting shaft hole 261. The end of the driven gear shaft 191 is encapsulated with a limit screw 193. Under the driving action of the drive motor 24, the fan head 1 oscillates left and right with the driven gear shaft 191 as the central axis.

[0026] The fan head 1 includes a fan housing 17, inside which an air passage is formed. The air passage has an air inlet and an air outlet at its two ends. An internal support 14 is provided within the air passage. A fan blade base 141 is provided on the side of the internal support 14 facing the air inlet. A drive fan blade assembly 15 is mounted on the fan blade base 141. A pressure boosting shroud 16 is provided around the drive fan blade assembly 15. The drive fan blade assembly 15 guides air located at the air inlet into the pressure boosting shroud 16 and then blows it out at high speed from the air outlet. An air inlet shroud 172 is provided on the air inlet, and an air outlet shroud 171 is provided at the air outlet. A semiconductor through-hole 173 is provided on the semiconductor through-hole 173, and a hot / cold semiconductor 12 is provided within the semiconductor through-hole 173. A heat sink 13 is thermally connected to the working surface of the hot / cold semiconductor 12 facing the air inlet, and a conductive cover 11 is thermally connected to the working surface of the hot / cold semiconductor 12 away from the air inlet.

[0027] The fan handle 2 includes a front cover 21, a rear cover 22, and a base plate 23 that are connected to each other. A cavity is formed between the front cover 21, the rear cover 22, and the base plate 23. A circuit board assembly 27 and a battery 28 are disposed within the cavity, and the battery 28 is electrically connected to the circuit board assembly 27. The circuit board assembly 27 is electrically connected to a control button 271 and a USB interface 272. Both the control button 271 and the USB interface 272 are located in a pre-set through hole in the rear cover 22 and extend outward from the through hole. The control button 271 is used to control and adjust the working mode and working state of the heating and cooling semiconductor 12 and the fan blade assembly 15. The USB interface 272, in conjunction with a charging cable, can be connected to an external power source to charge the battery 28.

[0028] The lower end of the fan handle 2 is connected to a carabiner 3, which is clamped between the handle base plate 23 and the handle back shell 22 and is rotatably connected to the fan handle 2.

[0029] In summary, this utility model connects the fan head 1 and the fan handle 2 via an oscillation mechanism, enabling the fan to switch directions during use. This not only effectively reduces the grip burden of the handheld fan but also improves the comfort of the fan. The carabiner 3 not only makes the fan portable but also, when combined with the oscillation mechanism, allows the fan, which originally only had a handheld function, to be used as an oscillating desktop fan, enriching the fan's usage scenarios and enhancing its practicality.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hand-held oscillating fan comprising a fan head (1) and a fan handle (2), characterized in that: The fan head (1) and the fan handle (2) are rotatably connected by a oscillating mechanism. The oscillating mechanism includes a drive motor (24), a drive gear (25), and a driven gear (19). The drive gear (25) is fixedly connected to the output shaft of the drive motor. The driven gear (19) is meshed with the drive gear (25). A connecting piece (18) is fixedly provided on the fan head (1). The driven gear (19) is formed on the connecting piece (18). The drive motor (24) is fixedly provided on the fan handle (2). Under the driving action of the drive motor (24), the fan head (1) rotates left and right with the driven gear (191) as the central axis. Limiting baffles (192) are symmetrically provided on the left and right sides of the driven gear (19). The limiting baffles (192) on the left and right sides are used to define the meshing stroke of the drive gear (25) relative to the driven gear (19), thereby defining the oscillation amplitude of the fan head (1).

2. A handheld oscillating fan according to claim 1, characterized in that: The fan handle (2) is provided with a motor base (26), the drive motor (24) is fixed on the motor base (26), the motor base (26) is provided with a connecting shaft hole (261), the driven gear shaft (191) is inserted into the connecting shaft hole (261) and is rotatably connected to the connecting shaft hole (261), and the end of the driven gear shaft (191) is encapsulated with a limit screw (193).

3. A handheld oscillating fan according to claim 1, characterized in that: The fan head (1) includes a fan housing (17), and an air passage is formed inside the fan housing (17). The two ends of the air passage are respectively set as an air inlet and an air outlet. An internal support (14) is provided inside the air passage. A fan blade base (141) is provided on the side of the internal support (14) facing the air inlet. A drive fan blade assembly (15) is installed on the fan blade base (141). A pressurizing shroud (16) is provided around the drive fan blade assembly (15). The drive fan blade assembly (15) guides the air located at the air inlet into the pressurizing shroud (16) and then blows it out at high speed from the air outlet.

4. A handheld oscillating fan according to claim 3, characterized in that: The air inlet is covered with an air inlet cover (172), and the air outlet is covered with an air outlet cover (171). The air outlet cover (171) is provided with a semiconductor through hole (173). A hot and cold semiconductor (12) is provided in the semiconductor through hole (173). The working surface of the hot and cold semiconductor (12) facing the air inlet is thermally connected to a heat sink (13). The working surface of the hot and cold semiconductor (12) away from the air inlet is thermally connected to a conductive cover (11).

5. A handheld oscillating fan according to claim 1, characterized in that: The fan handle (2) includes a front handle shell (21), a rear handle shell (22), and a bottom handle plate (23) that are connected to each other. A cavity is formed between the front handle shell (21), the rear handle shell (22), and the bottom handle plate (23). A circuit board assembly (27) and a battery (28) are disposed in the cavity. The battery (28) is electrically connected to the circuit board assembly (27).

6. A handheld oscillating fan according to claim 5, characterized in that: The circuit board assembly (27) is electrically connected to a control button (271) and a USB interface (272). The control button (271) and the USB interface (272) are both located in a pre-set through hole in the handle back cover (22) and extend outward from the through hole.

7. A handheld oscillating fan according to claim 5, characterized in that: The fan handle (2) is connected to a carabiner (3) at its lower end. The carabiner (3) is sandwiched between the handle base plate (23) and the handle back shell (22) and is rotatably connected to the fan handle (2).

Images