Fan capable of supplying air at 360 degrees
By setting a movable limiter and a blocking component on the driven gear of the fan, the problem of the fan not being able to deliver air in 360 degrees is solved, achieving omnidirectional air delivery and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SINGFUN ELECTRIC APPLIANCE
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-19
AI Technical Summary
Existing fans cannot deliver airflow in 360 degrees, resulting in a poor user experience.
By setting movable limiting and blocking components in the annular groove of the driven gear, the driven gear can rotate 360 degrees or even larger. Combined with the meshing of the motor-driven driving gear and the driven gear, omnidirectional air supply is achieved.
It achieves omnidirectional airflow, improves user experience and adaptability, and meets users' higher needs.
Smart Images

Figure CN224260536U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a fan, and more particularly to a fan capable of delivering air in 360 degrees. Background Technology
[0002] The applicant with application number 2024227664683 previously provided a reversible oscillating fan. This fan achieves this by fixing a stop and a limiting component to the base and driven gear, respectively. When the driven gear rotates to a certain angle, the stop on the driven gear strikes the limiting component on the base, causing force on the driving gear and motor shaft. The motor shaft then moves in the opposite direction, and this cycle repeats, thus achieving continuous oscillation. However, in this design, because the stop and limiting component are fixed to the base and driven gear, the fan cannot rotate 360 degrees or even larger angles, failing to achieve omnidirectional airflow and reducing the user experience.
[0003] Therefore, there is a need in the existing technology for a fan that can deliver air in 360 degrees. Utility Model Content
[0004] The purpose of this application is to design a fan that can deliver air in 360 degrees, achieving an omnidirectional air delivery effect. This structure effectively improves the poor user experience caused by the limited air delivery angle.
[0005] This application relates to a fan capable of 360-degree airflow, including a head assembly connected to a swing assembly. The swing assembly includes a motor mounted on a motor bracket, which also has a blocking member. The swing assembly further includes a driving gear and a driven gear meshing with each other. The motor drives the driving gear to rotate. The driven gear has an annular groove and a movable limiting member. The annular groove has a notch that allows the movable limiting member to rotate. The blocking member extends into the annular groove and can move relative to it along the annular groove, interacting with the movable limiting member.
[0006] The movable limiting member includes a shaft and an extension, the extension extending outward from the shaft into the notch; the movable limiting member and the driven gear can be coaxially arranged; a head support cover plate can also be provided, the driven gear has a protruding connecting part, the connecting part passes through the head support cover plate and connects to the head assembly; a bearing can be provided between the connecting part of the driven gear and the head support cover plate; the motor support as a whole can be provided with a base plate, and the blocking member is provided on the base plate of the motor support; the driving gear and the driven gear can both be provided between the motor support and the head support cover plate.
[0007] The head assembly can be connected to the column assembly via the swing assembly; or the head assembly can be connected to the head bracket via the swing assembly, and the head bracket can be connected to the column assembly; the swing assembly can be fixed relative to the head bracket or the column assembly; a second rotating assembly can also be provided, which enables the swing assembly to rotate relative to the column assembly or the head bracket.
[0008] This application improves the user experience by inserting a fixed blocking member into the annular groove of the driven gear, providing a notch within the groove, and allowing the distal end of a movable limiting member to rotate along the notch. This enables the driven gear to deliver 360 degrees or more of airflow relative to the blocking member through the rotation of the movable limiting member within the notch. The fan in this application also offers better adaptability and adjustability, meeting higher user demands. Attached Figure Description
[0009] Figure 1 This is a partial exploded view of the fan in this application.
[0010] Figure 2 This is a partial cross-sectional view of the fan in this application.
[0011] Figure 3 This is a top view of the motor bracket of the fan in this application.
[0012] Figure 4 This is a schematic diagram of the driven gear and movable limit component of the fan in this application. Detailed Implementation
[0013] 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.
[0014] A fan capable of 360-degree airflow according to this application includes a head assembly 50, which is connected to a swing assembly. The head assembly 50 is connected to a head bracket 10 via the swing assembly, and the head bracket 10 is connected to a column assembly 30. Alternatively, the head assembly 50 is directly connected to the column assembly 30 via the swing assembly. The swing assembly of this application enables the head assembly to swing back and forth. Preferably, a head bracket cover plate 6 is also provided between the swing assembly and the head assembly 50. As shown in the accompanying drawings, in the following embodiments of this application, the swing assembly is fixedly disposed relative to the head bracket 10 or the column assembly 30. Those skilled in the art will know that a second rotating assembly can also be provided between the head bracket 10 and the column assembly 30, or between the column assembly 30 and the swing assembly, so that the swing assembly can be driven, for example, by a stepper motor, to rotate relative to the head bracket or the column assembly, thereby achieving a more three-dimensional airflow effect and further improving the user experience.
[0015] In the embodiments of this application, the swing assembly includes a motor 1, which is fixedly mounted on a motor bracket 2. The motor bracket 2 can be fixedly mounted on a head bracket 10 or a column assembly 30. The swing assembly also includes a driving gear 3 and a driven gear 4 that mesh with each other. The motor 1 is connected to the driving gear 3 and drives the driving gear 3 to rotate, and the driving gear 3 drives the driven gear 4 to rotate. The top of the driven gear 4 has a protruding connecting part 41, which passes through the head bracket cover plate 6 and is fixedly connected to the head assembly 50, so that when the driven gear 4 rotates, it can drive the head assembly 50 to rotate together. A bearing 5 is provided between the connecting part 41 of the driven gear 4 and the head bracket cover plate 6, and the connecting part 41 can rotate relative to the head bracket cover plate 6 by the support of the bearing 5.
[0016] like Figure 1-3 As shown, the motor bracket 2 is bowl-shaped and has a base plate. The driving gear 3 and driven gear 4 are both located between the base plate and the headstock cover plate. The base plate has a shaft hole 20 through which the drive shaft of the motor 1 passes. The motor bracket 2 is fixedly connected to the lower structure via multiple fixing parts 21. The driving gear 3 is fixedly connected to the drive shaft of the motor 1. A blocking member 9 is also fixedly installed on the base plate of the motor bracket 2. The blocking member 9 can be as follows: Figure 3 The protrusion shown can also be a separate component that is fixedly connected to the motor bracket 2.
[0017] like Figure 4As shown, the driven gear 4 is rotatably mounted relative to the head support cover plate 6. The driven gear 4 has an annular groove 40 with a notch 8. A blocking member 9 extends into the annular groove 40 and can rotate relative to it. A movable limiting member 7 is provided within the annular groove 40, coaxially mounted with the driven gear 4 and rotatable relative to it. Specifically, the movable limiting member 7 includes a shaft 70 and an extension 11. The shaft 70 is coaxially mounted with the driven gear 4, and the extension 11 extends outward from the shaft 70 into the notch 8 of the driven gear 4. The notch 8 has two sides that can block the movement of the extension 11, restricting its rotation to within the length of the notch 8. When the blocking member 9 pushes the extension 11 to rotate, and the rotation is blocked by both sides of the notch 8, the motor reverses, causing the driven gear 4 to rotate in the opposite direction, and this cycle repeats. The movable limiting member 7 of this application can rotate relative to the driven gear 4, thereby interacting with the blocking member 9 fixedly mounted on the motor bracket 2, hence it is called the movable limiting member.
[0018] like Figure 1-4 As shown, the motor bracket 2 is fixedly installed, and a blocking member 9 is fixedly installed on the motor bracket 2. When the drive shaft of the motor 1 drives the driving gear 3 and the driven gear 4 to rotate together, the blocking member 9 can move relative to the annular groove 40 of the driven gear 4. When the blocking member 9 touches the extension 11 of the movable limiting member 7, it will not immediately cause the driven gear 4 to stop rotating. Instead, because the extension 11 can continue to move in the notch 8, the driven gear 4 can drive the head assembly to continue rotating until the extension 11 touches the other side wall of the notch 8. Only then will the blocking member 9 be unable to continue rotating relative to the driven gear 4. At this time, the driven gear 4 stops rotating, the motor rotates in the opposite direction, and then drives the driven gear to rotate in the opposite direction to perform the next reverse head swing cycle. Therefore, by providing a notch 8 in the annular groove 40 of the driven gear 4, which allows the extension 11 of the limiting member 7 to continue to move a certain distance, this application enables the driven gear 4 to drive the head assembly and perform 360 degrees or more of omnidirectional air supply relative to the motor bracket, further improving the user experience. The range of air delivery angles exceeding 360 degrees depends on the size of the angle range of the notch 8, and can be adjusted according to actual needs, making the fan of this application more adaptable and adjustable, and able to meet higher user requirements.
[0019] 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 fan capable of 360-degree airflow, comprising a head assembly, wherein the head assembly is connected to a oscillating assembly, the oscillating assembly including a motor, the motor being mounted on a motor bracket, characterized in that, The motor bracket is also provided with a blocking component; the swing assembly also includes a driving gear and a driven gear that mesh with each other. The motor drives the driving gear to rotate. The driven gear is provided with an annular groove and a movable limiting component. The annular groove is provided with a notch that allows the movable limiting component to rotate. The blocking component extends into the annular groove and can move relative to the annular groove and interact with the movable limiting component.
2. The fan according to claim 1, characterized in that, The movable limiting member includes a shaft portion and an extension portion, the extension portion extending outward from the shaft portion into the notch portion.
3. The fan according to claim 1 or 2, characterized in that, The movable limiting component is coaxially arranged with the driven gear.
4. The fan according to claim 1 or 2, characterized in that, It also includes a head support cover plate, and the driven gear has a protruding connecting part that passes through the head support cover plate and connects to the head assembly.
5. The fan according to claim 4, characterized in that, A bearing is provided between the connecting part of the driven gear and the cover plate of the machine head bracket.
6. The fan according to claim 1 or 2, characterized in that, The motor bracket is provided with a base plate, and the blocking component is disposed on the base plate.
7. The fan according to claim 6, characterized in that, It is also provided with a head support cover plate, and the driving gear and the driven gear are both disposed between the motor bracket and the head support cover plate.
8. The fan according to claim 1, 2, 5, or 7, characterized in that, The head assembly is connected to the column assembly via the swing assembly; or, the head assembly is connected to the head bracket via the swing assembly, and the head bracket is connected to the column assembly.
9. The fan according to claim 8, characterized in that, The swing assembly is fixedly disposed relative to the head support or the column assembly.
10. The fan according to claim 8, characterized in that, It also includes a second rotating component that enables the swing assembly to rotate relative to the column assembly or the head support.