A fan that can automatically oscillate.

Abstract

This utility model relates to the field of electric fan technology, and particularly to a fan with automatic oscillation capability. It includes a head assembly with fan blades and an oscillation structure located on the side of the head assembly. The head assembly has open mounting slots on both sides at the same horizontal level. A rotating shaft passes through the opening of the mounting slot. A fixing slot is located at the bottom of the mounting slot facing the rotating shaft. One side of the oscillation structure is connected to the fixing slot, and the other side is connected to the rotating shaft. The oscillation structure includes a synchronous motor located in the fixing slot, a crank connected to the synchronous motor, and a swing rod connected to the crank. A connecting portion is located on the outer periphery of the end of the rotating shaft facing the synchronous motor, and the end of the swing rod away from the crank is connected to the connecting portion. This utility model aims to improve the structural strength of the fan and enable it to oscillate stably up and down.

Description

Technical Field

[0001] This utility model relates to the field of electric fan technology, and in particular to a fan that can automatically oscillate. Background Technology

[0002] Electric fans are a very common household appliance. They use a main motor to drive the fan blades and generate airflow to cool people down. In existing technology, the up-and-down oscillating structure usually includes a motor, a crank, and a connecting rod fixed on a bracket. The motor drives the crank to rotate, and one end of the connecting rod is connected to the crank, while the other end is connected to the mounting bracket on which the fan blades are mounted. When the motor drives the crank to rotate, it drives the connecting rod to move, thereby enabling the fan blades to oscillate up and down relative to the bracket.

[0003] However, in the existing technology, especially when the technology is applied to fans with high bracket height, the fan motor and the oscillating motor are installed in different positions, and there is a motion relationship between the two motors when the fan oscillates. This makes the fan circuit design more complicated and the internal circuit is easy to be damaged. At the same time, because the bracket is high and the top is more fragile, the oscillating structure is installed at this position, which can easily cause damage to the entire structure. Utility Model Content

[0004] The main purpose of this invention is to provide a fan that can automatically oscillate, which aims to improve the structural strength of the fan and enable it to oscillate up and down stably.

[0005] To achieve the above objectives, this utility model proposes an automatic oscillating fan, including a head assembly with fan blades and an oscillating structure located on the side of the head assembly. The two sides of the head assembly are provided with open mounting grooves at the same horizontal height. A rotating shaft passes through the opening of the mounting groove. The bottom of the mounting groove is provided with a fixing groove facing the rotating shaft. One side of the oscillating structure is connected to the fixing groove, and the other side is connected to the rotating shaft.

[0006] The oscillating head structure includes a synchronous motor disposed in a fixed slot, a crank connected to the synchronous motor, and an oscillating rod connected to the crank. A connecting part is provided on the outer periphery of the end of the rotating shaft facing the synchronous motor, and the end of the oscillating rod away from the crank is connected to the connecting part.

[0007] In one embodiment of this application, a connector is driven to the synchronous motor, and the connector is eccentrically provided on the side opposite to the synchronous motor for connecting to a crank.

[0008] In one embodiment of this application, the central shaft of the synchronous motor is positioned toward the side of the rotating shaft away from the connecting portion.

[0009] In one embodiment of this application, the bottom of the mounting groove is provided with a plurality of mounting posts with connecting holes facing the opening of the mounting groove. The plurality of mounting posts are wrapped around the outer periphery of the fixing groove. The opening of the mounting groove is provided with a bushing connected to the mounting post, and the rotating shaft passes through the bushing.

[0010] In one embodiment of this application, a cover is provided at the opening of the mounting groove, the cover has a through hole facing the rotating shaft, and the cover is connected to the bushing.

[0011] In one embodiment of this application, the end of the rotating shaft opposite to the synchronous motor is provided with a mounting part.

[0012] In one embodiment of this application, a bracket with a base is further included, the top of which is provided with a U-shaped connecting frame opposite the head assembly, and the rotating shaft is connected to the connecting frame.

[0013] By adopting the above technical solution, this utility model has the following advantages:

[0014] In this application, the head assembly, which serves as the main body of the fan, houses the fan blades. The head assembly enables the fan blades to operate stably and allows for a more stable mounting of the oscillating head structure, enabling the fan blades to swing freely and stably up and down, thus increasing the overall strength of the fan structure. Two mounting slots are provided on both sides of the head assembly at the same horizontal height, typically located at the central axis of the head structure. This allows for smoother up-and-down swinging of the head assembly and also protects the oscillating head structure. Generally, only one oscillating head structure is needed to drive the fan to swing stably up and down. By mounting the oscillating head structure through the mounting slots, the fan motor and the oscillating head structure can move synchronously, effectively optimizing the circuit design and giving the entire fan better structural strength.

[0015] The fan's shaft is located within a mounting slot, which secures the shaft and allows the fan to rotate relative to it, ensuring a stable fan trajectory. A fixing slot within the mounting slot faces the shaft, allowing for stable mounting of the synchronous motor in the oscillating head structure and ensuring a stable operating environment for the motor. The synchronous motor is driven by a crank, with the crank positioned away from the motor and connected to a swing arm. The crankshaft allows for an eccentric connection between the swing arm and the synchronous motor. The swing arm itself is connected to the shaft, which has a connecting part on its outer circumference. This connection increases the eccentric distance between the shaft and the oscillating head structure. With this structure, when the synchronous motor rotates clockwise or counterclockwise, the shaft oscillates back and forth in those directions under the influence of the oscillating head structure. Once the shaft is fixed, the reaction force allows the head assembly to oscillate back and forth with the fan blades in a stable and continuous motion, resulting in a smoother process and effectively reducing noise during oscillation, thus improving the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 An exploded view of the fan with automatic head oscillation according to this utility model;

[0018] Figure 2 This is a cross-sectional view of the fan with automatic head oscillation according to the present invention;

[0019] Figure 3 This is a top view of the fan with automatic head oscillation according to the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the fan with automatic head oscillation according to this utility model.

[0021] Explanation of icon numbers:

[0022] 1. Head assembly; 11. Mounting slot; 12. Fixing slot; 13. Mounting column; 2. Bushing; 3. Protective cover; 4. Shaft; 41. Connecting part; 5. Swinging head structure; 51. Synchronous motor; 52. Connecting piece; 53. Crank; 54. Swinging rod; 6. Bracket.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] The following is in conjunction with the appendix Figures 1 to 4 The present invention will be further described below.

[0026] Preferably, the present invention provides an automatic oscillating fan, including a head assembly 1 with fan blades and an oscillating structure 5 located on the side of the head assembly 1. The two sides of the head assembly 1 are provided with open mounting grooves 11 at the same horizontal height. A rotating shaft 4 passes through the opening of the mounting groove 11. The bottom of the mounting groove 11 is provided with a fixing groove 12 facing the rotating shaft 4. One side of the oscillating structure 5 is connected to the fixing groove 12, and the other side is connected to the rotating shaft 4.

[0027] The oscillating head structure 5 includes a synchronous motor 51 disposed in a fixed groove 12, a crank 53 connected to the synchronous motor 51, and an oscillating rod 54 connected to the crank 53. A connecting part 41 is provided on the outer periphery of the end of the rotating shaft 4 facing the synchronous motor 51, and the end of the oscillating rod 54 away from the crank 53 is connected to the connecting part 41.

[0028] In this application, the head assembly 1, which serves as the main body of the fan, houses the fan blades. The head assembly 1 enables the fan blades to operate stably, and the oscillating structure 5 can be more stably mounted on the head assembly 1, allowing the fan blade structure to swing freely and stably up and down, thus increasing the overall strength of the fan structure. Two mounting slots 11 are provided on both sides of the head assembly 1 at the same horizontal height, and the two mounting slots 11 are generally located at the central axis of the head structure. This allows the head assembly 1 to swing up and down more smoothly. The mounting slots 11 can also protect the oscillating structure 5. Generally, only one set of oscillating structures 5 is needed to drive the fan to swing up and down stably. By mounting the oscillating structure 5 through the mounting slots 11, the fan motor and the oscillating structure 5 can move synchronously, effectively optimizing the circuit design and giving the entire fan better structural strength.

[0029] The fan's shaft 4 is located within the mounting slot 11. Fixing the shaft 4 via the mounting slot 11 allows the fan to rotate relative to the shaft 4, ensuring a stable fan trajectory. A fixing slot 12 is provided in the mounting slot 11 facing the shaft 4, allowing the synchronous motor 51 of the oscillating head structure 5 to be stably installed, ensuring a stable working environment for the synchronous motor 51. The synchronous motor 51 is driven by a crank 53, and the crank 53 is connected to the swing arm 54 at a position away from the synchronous motor 51 and away from its connection point. The crank allows the swing arm 54 to be eccentrically connected to the synchronous motor 51, enabling oscillation. The rod 54 is connected to the rotating shaft 4. The rotating shaft 4 has a connecting part 41 on its outer periphery. The swing rod 54 is connected to the connecting part 41, which can increase the eccentric distance between the rotating shaft 4 and the swing head structure 5. Under this structure, when the synchronous motor 51 rotates in a clockwise or counterclockwise direction, the rotating shaft 4 can move back and forth in a clockwise and counterclockwise direction under the action of the swing head structure 5. After the rotating shaft 4 is fixed, with the help of the reaction force, the head assembly 1 can swing back and forth and stably up and down with the fan blades, which can make the whole process smoother and effectively reduce the noise generated during swinging, thus improving the user experience.

[0030] Preferably, a connector 52 is driven and connected to the synchronous motor 51, and the connector 52 is eccentrically provided on the side opposite to the synchronous motor 51 for connecting to the crank 53.

[0031] The synchronous motor 51 is connected to the crank 53 through the connector 52 and the connecting end, which makes the crank 53 easy to install and ensures the stability of the structure. The connecting end is eccentrically set on the connector 52, which ensures that the head assembly 1 has a large up-and-down swing angle when the synchronous motor 51 rotates, thus improving the swing effect.

[0032] Preferably, the central shaft of the synchronous motor 51 is positioned on the side of the rotating shaft 4 away from the connecting part 41.

[0033] The swing state of the head assembly 1 is centered on the rotating shaft 4. A connecting part 41 is provided on one side of the rotating shaft 4, while the rotating shaft 51 is oriented towards the other end of the rotating shaft 4 away from the connecting part 41. This allows the synchronous motor 51 to drive the fan to swing up and down at a large angle using the swing arm 54 when it is working, which can effectively improve the user experience.

[0034] Preferably, the bottom of the mounting groove 11 is provided with a plurality of mounting posts 13 with connecting holes facing the opening of the mounting groove 11. The plurality of mounting posts 13 surround the outer periphery of the fixing groove 12. The opening of the mounting groove 11 is provided with a bushing 2 connected to the mounting post 13, and the rotating shaft 4 passes through the bushing 2.

[0035] The mounting groove 11 is provided with a mounting post 13. The mounting post 13 wraps around the outer periphery of the fixing groove 12 so that after the bushing 2 is installed at the opening of the mounting groove 11, it can wrap around the swing head structure 5 to protect the swing head structure 5 and enable the rotating shaft 4 to be installed stably.

[0036] Preferably, the opening of the mounting groove 11 is provided with a cover 3, the cover 3 has a through hole facing the rotating shaft 4, and the cover 3 is connected to the bushing 2.

[0037] The cover 3 seals the opening of the mounting groove 11, which can protect the fan's oscillating structure 5 and further stabilize the bushing 2, ensuring the stability of the connection between the rotating shaft 4 and the head assembly 1.

[0038] Preferably, the end of the rotating shaft 4 that is away from the synchronous motor 51 is provided with a mounting part.

[0039] The mounting part is located on the rotating shaft 4. The mounting part has an irregular shape. The rotating shaft 4 can be installed with the external structure through the mounting part, which can ensure the stability of the entire rotating shaft 4 mounting structure.

[0040] Preferably, it also includes a bracket 6 with a base, the top of the bracket 6 having a U-shaped connecting frame relative to the head assembly 1, and the rotating shaft 4 being connected to the connecting frame.

[0041] The U-shaped connecting bracket wraps around one side of the head assembly 1, which can stably install the rotating shaft 4 and allow the head assembly 1 to swing up and down stably. The bracket 6 is connected to the connector 52 and the base, which can ensure the stability of the fan installation and give the fan a certain height, enabling the fan to be used in more scenarios and improving the user experience.

[0042] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fan capable of automatically oscillating, characterized by, The device includes a head assembly with fan blades and a swing head structure located on the side of the head assembly. The head assembly has open mounting slots on both sides at the same horizontal height. A rotating shaft passes through the opening of the mounting slot. A fixing slot is provided at the bottom of the mounting slot facing the rotating shaft. One side of the swing head structure is connected to the fixing slot, and the other side is connected to the rotating shaft. The oscillating head structure includes a synchronous motor disposed in a fixed slot, a crank connected to the synchronous motor, and an oscillating rod connected to the crank. A connecting part is provided on the outer periphery of the end of the rotating shaft facing the synchronous motor, and the end of the oscillating rod away from the crank is connected to the connecting part.

2. The self-tilting fan of claim 1, wherein, The synchronous motor is driven by a connector, and the connector has an eccentric connection end on the side opposite to the synchronous motor for connecting to the crank.

3. The self-tilting fan of claim 1, wherein: The central shaft of the synchronous motor is positioned on the side of the rotating shaft away from the connecting part.

4. The self-tilting fan of claim 1, wherein: The bottom of the mounting groove is provided with a plurality of mounting posts with connecting holes facing the opening of the mounting groove. The plurality of mounting posts are wrapped around the outer periphery of the fixing groove. The opening of the mounting groove is provided with a bushing connected to the mounting post, and the rotating shaft passes through the bushing.

5. The self-tilting fan of claim 4, wherein: The opening of the mounting groove is provided with a cover, the cover has a through hole facing the rotating shaft, and the cover is connected to the bushing.

6. The self-tilting fan of claim 1, wherein: The end of the rotating shaft opposite to the synchronous motor is provided with a mounting part.

7. The self-tilting fan of claim 1, wherein: It also includes a bracket with a base, the top of which is provided with a U-shaped connecting frame relative to the head assembly, and the pivot is connected to the connecting frame.

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