Reversible oscillating fan

Abstract

The utility model relates to a reversible oscillating fan which comprises a base plate, a base and a machine head assembly, the base is rotatably arranged on the base plate, a first synchronous motor is arranged on the base, the machine head assembly rotates relative to the base through the first synchronous motor, and the oscillating fan is further provided with a second synchronous motor. And the base rotates relative to the chassis through the second synchronous motor. By designing the two synchronous motors for driving the base and the machine head assembly to rotate correspondingly, the fan can change various angles in the head shaking process, the more three-dimensional air supply effect is formed, and the user experience is improved.

Description

Technical Field

[0001] This application relates to an oscillating fan, and more particularly to an oscillating fan with reversible direction. Background Technology

[0002] Existing fans require multiple mechanisms to operate simultaneously to achieve 3D oscillation, resulting in complex structures, limited airflow angles, and high costs. Utility model patent CN220929729 U discloses a fan oscillation mechanism, including a fan housing, an oscillation motor, a fan motor, fan blades, and an inner support bracket. The fan housing includes a base and a top cover. The bottom of the inner support bracket is rotatably connected to the base. A first connecting gear is located on the bottom side of the inner support bracket. The oscillation motor is located inside the base, and its output shaft extends from the top of the base and connects to a second connecting gear. The first and second connecting gears mesh, allowing the oscillation motor to drive the inner support bracket to rotate. The top cover is fixedly connected to the top of the inner support bracket, and the fan motor is connected to the inside of the inner support bracket. The fan motor's output shaft passes through the inner support bracket and the top cover, connecting to the fan blades on the outside of the top cover. This patented structure only allows for horizontal oscillation, failing to achieve a 3D oscillation effect.

[0003] Therefore, there is a need in the existing technology for an oscillating fan that provides a more three-dimensional airflow effect and a better user experience. Utility Model Content

[0004] The purpose of this application is to design a reversible oscillating fan that can switch directions while oscillating, effectively improving the limitation of the airflow angle of a circulating fan. This application provides users with greater practicality through a left-right oscillating mechanism, allowing for multi-angle adjustment of the airflow direction and enabling different needs to be met by independently controlling two oscillating synchronous motors in combination.

[0005] This application relates to a reversible oscillating fan, including a chassis, a base, and a head assembly. The base is rotatably mounted on the chassis, and a first synchronous motor is provided on the base. The head assembly rotates relative to the base via the first synchronous motor. The oscillating fan also includes a second synchronous motor, and the base rotates relative to the chassis via the second synchronous motor.

[0006] The first synchronous motor's output shaft can be connected to a drive gear, which is connected to a driven gear. The driven gear is connected to a head unit frame, and a head unit assembly can be connected to the head unit frame. The drive gear and the driven gear are inclined at an angle of 20-40 degrees. The base can be provided with a base cover, and a bearing is provided between the driven gear and the base cover. A limiting component can be provided between the base and the head unit assembly. A limiting member can be provided on the base, and a stop block for blocking the limiting member is provided on the driven gear. A bushing can be provided between the base and the chassis, and the base can rotate relative to the chassis through the bushing. A synchronous motor fixing plate can be fixedly connected to the base, and a second synchronous motor is fixedly mounted on the synchronous motor fixing plate. The output shaft of the second synchronous motor is connected to an eccentric member, and the eccentric member is connected to the bushing through a connecting rod. A support ring can also be provided between the base and the chassis. The head unit assembly can include a motor bracket, which is mounted on the head unit bracket and has a drive motor for driving the fan blades to rotate.

[0007] This application designs two synchronous motors that drive the base and the fan head assembly to rotate respectively, enabling the fan to change various angles during oscillation, creating a more three-dimensional airflow effect and improving the user experience. This application also incorporates stops and limiters on the base and driven gear respectively, allowing the driven gear to drive the fan head assembly to oscillate back and forth. Attached Figure Description

[0008] Figure 1 This is an exploded view of the oscillating fan described in this application.

[0009] Figure 2 This is a cross-sectional view of the oscillating fan of this application.

[0010] Figure 3 This is a bottom view of the base of the oscillating fan of this application.

[0011] Figure 4 This is a schematic diagram of the connection of the first synchronous motor of the oscillating fan of this application.

[0012] Figure 5 This is a schematic diagram of the base of the oscillating fan of this application.

[0013] Figure 6 This is a bottom schematic diagram of the gear assembly of this application. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0015] A reversible oscillating fan according to this application includes a chassis 30, a base 20, and a head assembly. The base 20 is mounted on the chassis 30, and the head assembly is rotatable relative to the base 20. A limiting component is provided between the base 20 and the head assembly to achieve automatic reversal after rotation to a certain angle. Specifically, a first synchronous motor 21 is mounted on the base 20. The output shaft of the first synchronous motor 21 is connected to a drive gear 22, and the drive gear 22 meshes with a driven gear 23. A base cover 24 is provided on the base 20, and the drive gear 22 and the driven gear 23 can be disposed within the base cover 24, with the drive gear 22 driving the driven gear 23 to run within the base cover 24. A control board 26 and a control panel 25 are also provided on the base 20, with the control board 26 connected to the first synchronous motor 21. The user can control the fan by sending control signals to the control board 26 through the control panel 25. Preferably, the driven gear shaft of this application is designed with an angle of 20-40 degrees to the horizontal plane, so that the contact surface between the head assembly and the base forms an angle of 20-40 degrees with the horizontal plane, preferably 30 degrees, so that the head assembly of this application can rotate in the inclined plane, forming a more three-dimensional air supply effect and enhancing the user experience.

[0016] Driven gear 23 is connected to head unit frame 13. Driven gear 23 is fixed to head unit support 13 with screws. Head unit support 13 moves together with driven gear 23. Head unit assembly is fixed to head unit support 13. Driven gear 23 drives head unit assembly to rotate around the center of driven gear. Bearing 27 is provided between driven gear 23 and base cover 24. The outer ring of bearing is connected to base cover, and the inner ring is fitted on driven gear 23. Driven gear 23 rotates around the center of bearing. Limiting components may include limiting member 29 provided on base 20 and stop block 230 provided on driven gear 23, or other forms may be used. When driven gear 23 rotates to a certain angle, stop block 230 on driven gear hits limiting member 29 on base 20, causing force on driving gear and synchronous motor shaft. Synchronous motor shaft moves in the opposite direction due to force, thus repeating the cycle to achieve continuous reversing oscillation.

[0017] More preferably, the base 20 can also be configured to rotate relative to the chassis 30. Specifically, such as Figure 1As shown, a bushing 35 can be provided between the base 20 and the chassis 30, allowing the base 20 to rotate relative to the chassis 30 via the bushing 35. A synchronous motor mounting plate 36 is fixedly connected to the base 20, and the bushing 35 is fixedly mounted on the synchronous motor mounting plate 36. A second synchronous motor 31 is also fixedly mounted on the synchronous motor mounting plate 36. The output shaft of the second synchronous motor 31 is connected to an eccentric component 32, which is connected to the bushing 35 via a crank connecting rod 33. In this application, the second synchronous motor drives the eccentric component to rotate, causing the crank connecting rod and the bushing to rotate together relative to the chassis. Preferably, a support ring 34 can also be provided between the base 20 and the chassis 30, and the support ring 34 is preferably a POM support ring. Ball bearings are fixedly provided on the base, and the support ring has a groove in which the ball bearings can move.

[0018] like Figure 1 As shown, the head assembly includes a motor bracket 12, which is fixedly mounted on the head bracket 13. The drive motor 10, which drives the fan blades, is fixed to the motor bracket 12 by a locking nut 11. The output shaft of the motor 10 is connected to a fan blade assembly (not shown), and the front end of the fan blade assembly is provided with a cap 14. The arrangement of the motor and fan blade assembly in this application can adopt existing technology, and will not be described in detail here.

[0019] This application designs two synchronous motors that drive the base and head assembly to rotate respectively, enabling the fan to change various angles during oscillation, creating a more three-dimensional airflow effect and improving the user experience.

[0020] Although the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit this application. Any person skilled in the art to which this application pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of patent protection of this application shall still be determined by the scope defined in the appended claims.

Claims

1. A reversible oscillating fan, comprising a chassis, a base, and a head assembly, characterized in that, The base is rotatably mounted on the chassis, and a first synchronous motor is provided on the base. The head assembly rotates relative to the base via the first synchronous motor. The oscillating fan is also provided with a second synchronous motor, and the base rotates relative to the chassis via the second synchronous motor.

2. The oscillating fan according to claim 1, characterized in that, The output shaft of the first synchronous motor is connected to a drive gear, the drive gear is connected to a driven gear, the driven gear is connected to a head frame, and a head assembly is connected to the head frame.

3. The oscillating fan according to claim 2, characterized in that, The driving gear and the driven gear are set at an angle of 20-40 degrees.

4. The oscillating fan according to any one of claims 2-3, characterized in that, The base is provided with a base cover, and a bearing is provided between the driven gear and the base cover.

5. The oscillating fan according to claim 2, characterized in that, A limiting component is provided between the base and the head assembly.

6. The oscillating fan according to claim 5, characterized in that, The base is provided with a limiting member, and the driven gear is provided with a stop block for blocking the limiting member.

7. The oscillating fan according to any one of claims 1-3 and 5-6, characterized in that, A bushing is provided between the base and the chassis, and the base rotates relative to the chassis via the bushing.

8. The oscillating fan according to claim 7, characterized in that, A synchronous motor mounting plate is fixedly connected to the base, and the second synchronous motor is fixedly mounted on the synchronous motor mounting plate. The output shaft of the second synchronous motor is connected to the eccentric component, and the eccentric component is connected to the bushing through a connecting rod.

9. The oscillating fan according to claim 7, characterized in that, A support ring is also provided between the base and the chassis.

Images