A fan structure capable of adjusting air volume, air pressure and air outlet direction
Patent Information
- Application Number
- CN202521400582.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-07-04
AI Technical Summary
然而，传统的风扇在设计上存在以下局限性：（1）只能进行单面送风，传统风扇的扇叶采用单向空气动力学轮廓，其弯曲角度和迎风面仅能优化单侧气流；（2）扇叶角度在安装后即固定不变，无法根据环境需求进行实时调整，且需要改变送风方向和风压时，用户必须拆卸原有扇叶并更换其他角度的扇叶，但是更换扇叶的工作比较繁琐
1、本实施例的无刷电机能控制扇叶的旋转方向，扇叶分体设置于转动件上，扇叶与滑块滑动连接，当伺服电机驱动滑块于转动件内进行往复运动时，扇叶的角度随之改变，从而配合风扇的吹风方向优化气流性能，且能通过进一步控制扇叶的角度，实现风压和风量的调节，实现更精准的送风控制，提高送风效果；
Smart Images
Figure CN224814015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan technology, and in particular to a fan structure with adjustable air volume, air pressure and air outlet direction. Background Technology
[0002] A fan is a household or industrial appliance that uses an electric motor to drive the blades to rotate, accelerating airflow to provide cooling, ventilation, and air circulation.
[0003] Traditional fans typically use two methods to adjust the airflow effect: one is to adjust the air volume by changing the motor speed, and the other is to control the airflow direction and air pressure by installing fan blades with different angles to meet the needs of different usage scenarios. However, traditional fans have the following limitations in design: (1) They can only deliver air from one side. The fan blades of traditional fans adopt a unidirectional aerodynamic profile, and their bending angle and windward surface can only optimize the airflow on one side; (2) The fan blade angle is fixed after installation and cannot be adjusted in real time according to environmental needs. When it is necessary to change the airflow direction and air pressure, the user must disassemble the original fan blades and replace them with fan blades of other angles, but the work of replacing fan blades is relatively cumbersome. Utility Model Content
[0004] To address the problems mentioned above, this utility model provides a fan structure with adjustable air volume, air pressure, and air outlet direction, which can output air from both sides, and the fan blade angle can be adjusted. It is convenient to use and has strong applicability.
[0005] The solution adopted by this utility model to solve its technical problem is: a fan structure with adjustable air volume, air pressure and air outlet direction, including a shell, a fan assembly and a brushless motor, wherein the brushless motor is used to drive the fan assembly to rotate; The fan assembly includes a rotating component rotatably connected to the housing, a servo motor fixed to one side of the rotating component, and fan blades, wherein the fan blades are separately disposed on the rotating component; The rotating component has a slider inside, the fan blade is slidably connected to the slider, and the servo motor is used to drive the slider to reciprocate within the rotating component.
[0006] Furthermore, the rotating component is provided with a snap-fit groove, and the fan blade is snapped into the snap-fit groove.
[0007] Furthermore, the fan blades are provided with at least three, including a fan surface and a snap-fit surface. A snap-fit block is provided at the bottom of the snap-fit surface, and a sliding groove is provided on the outer periphery of the slider. The snap-fit block is slidably disposed in the sliding groove.
[0008] Furthermore, the slider is a regular polygon, and the number of sliding grooves matches the number of fan blades.
[0009] Furthermore, the outer casing includes a flow guide, which is fixedly connected to the rotating component.
[0010] Furthermore, a bearing is provided between the flow guide and the rotating component.
[0011] Furthermore, an aromatherapy box is provided on the side of the housing near the brushless motor.
[0012] In summary, the beneficial effects of this utility model are as follows: 1. The brushless motor in this embodiment can control the rotation direction of the fan blades. The fan blades are separately mounted on the rotating part and are slidably connected to the slider. When the servo motor drives the slider to reciprocate within the rotating part, the angle of the fan blades changes accordingly, thereby optimizing the airflow performance in accordance with the blowing direction of the fan. Furthermore, by further controlling the angle of the fan blades, the wind pressure and air volume can be adjusted to achieve more precise air delivery control and improve the air delivery effect. 2. The fan in this application has a simple structure, is easy to manufacture, and has a simple control method for changing the angle of the fan blades, making it convenient for users to operate; 3. An aromatherapy box is located on the side of the outer casing near the brushless motor. The airflow control of the fan in this application can improve the aroma diffusion effect. When the fan blows air in the forward direction relative to the aromatherapy box, the aroma molecules can form a directional jet with the high-pressure airflow, increasing the diffusion distance. When the fan blows air in the reverse direction relative to the aromatherapy box, the aromatherapy box is placed in a negative pressure zone, and the evaporation rate of the aroma molecules can be enhanced by the Bernoulli effect. At the same time, with the adjustment of the fan blade angle, when the fan blade is at a large tilt angle, wide-area diffusion can be achieved, which is suitable for uniform fragrance distribution in large spaces. When the fan blade is at a small tilt angle, directional delivery can be achieved to meet the high concentration requirements of local spaces. Through the above design, the fan in this application can improve the use effect of the aromatherapy box and is suitable for various scenarios.
[0013] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0014] Figure 1 This is the front view of the fan in this embodiment; Figure 2 This is a rear view of the fan in this embodiment; Figure 3 This is a cross-sectional view of the fan on the right side of the slider and the rotating part; Figure 4 This is a cross-sectional view of the fan on the left side of the slider and rotating part; Figure 5 This is the main view of the fan component; Figure 6 This is a schematic diagram of the fan assembly.
[0015] In the diagram: 1. Outer shell; 11. Radiator; 2. Fan assembly; 21. Rotating component; 211. Snap-fit groove; 22. Servo motor; 23. Fan surface; 24. Snap-fit surface; 25. Snap-fit block; 26. Slider; 261. Sliding groove; 3. Brushless motor; 4. Bearing; 5. Aromatherapy box. Detailed Implementation
[0016] To make the content of this utility model easier to understand, the present utility model will be further described below with reference to specific embodiments and accompanying drawings.
[0017] It should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer" used herein to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Unless otherwise stated, "a plurality of" means two or more.
[0018] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] like Figures 1 to 6 As shown, a fan structure with adjustable airflow, air pressure, and airflow direction includes a housing 1, a fan assembly 2, and a brushless motor 3. The brushless motor 3 drives the fan assembly 2 to rotate clockwise or counterclockwise, thereby achieving airflow from both sides.
[0020] like Figure 5 and Figure 6 As shown, the fan assembly 2 includes a rotating component 21 rotatably connected to the outer casing 1, a servo motor 22 fixed to one side of the rotating component 21, and fan blades, with the fan blades separately disposed on the rotating component 21.
[0021] Specifically, such as Figure 3 and Figure 4As shown, a slider 26 is provided inside the rotating component 21, and the fan blade is slidably connected to the slider 26. The servo motor 22 is used to drive the slider 26 to reciprocate within the rotating component 21. It should be noted that when the slider 26 reciprocates within the rotating component 21, the fan blade on the rotating component 21 is subjected to force and rotates clockwise or counterclockwise. Through the above design, the angle of the fan blade can be adjusted.
[0022] In this embodiment, the rotating component 21 is provided with four locking slots 211, and the fan blade is locked in the locking slots 211. The fan blade includes a fan surface 23 and a locking surface 24. A locking block 25 is provided at the bottom of the locking surface 24. The slider 26 is in the shape of a regular octagon and has four sliding grooves 261 on its outer periphery. The locking block 25 is slidably disposed in the sliding grooves 261.
[0023] like Figure 1 As shown, the outer casing 1 includes a flow guide 11, which is fixedly connected to the rotating component 21. When the brushless motor 3 drives the rotating component 21 to rotate clockwise or counterclockwise, the flow guide 11 rotates together with the rotating component 21 and the fan blades to form a spiral airflow channel, thereby improving the uniformity of the fan's airflow.
[0024] like Figure 3 As shown, a bearing 4 is provided between the flow guide 11 and the rotating part 21.
[0025] The air blowing method of the fan in this embodiment is as follows: Figure 4 As shown, when the servo motor 22 controls the slider 26 to move to the left and is located to the left of the rotating part 21, the brushless motor 3 cooperates to control the fan blades to rotate counterclockwise. At this time, the fan exhaust direction is to the right, and the bending angle of the fan blades further optimizes the rightward airflow; as shown Figure 3 As shown, when the servo motor 22 controls the slider 26 to move to the right and is located on the right side of the rotating part 21, the brushless motor 3 cooperates to control the fan blades to rotate clockwise. At this time, the fan exhaust direction is to the left, and the bending angle of the fan blades further optimizes the airflow to the left.
[0026] Furthermore, regardless of whether the fan's airflow direction is to the right or left, and whether the slider 26 is tilted to the left or right of the rotating component 21, when the fan blade tilt angle is large, the fan can usually push more air, generating a larger air volume and creating greater wind pressure, thus blowing the air to a farther location. When the fan blade tilt angle is small, the amount of air pushed is relatively small, resulting in a smaller air volume, but the airflow is more dispersed, the wind pressure is lower, and the wind is gentler.
[0027] like Figure 4As shown, the aromatherapy box 5 is fixed to the side of the outer casing 1 near the brushless motor 3 by screws or adhesive. The airflow control of the fan in this application can improve the aromatherapy diffusion effect; when the fan blows air in the forward direction relative to the aromatherapy box 5, the aromatherapy molecules can form a directional jet with the high-pressure airflow, increasing the diffusion distance; when the fan blows air in the reverse direction relative to the aromatherapy box 5, the aromatherapy box 5 is placed in a negative pressure zone, and the evaporation rate of the aromatherapy molecules can be enhanced by the Bernoulli effect; simultaneously, with the adjustment of the fan blade angle, when the fan blade is at a large tilt angle, wide-area diffusion can be achieved, suitable for uniform fragrance distribution in large spaces; when the fan blade is at a small tilt angle, directional delivery can be achieved, meeting the high concentration requirements of local spaces; through the above design, the fan of this application can be used with the aromatherapy box to improve its effect, and is suitable for various scenarios.
[0028] The embodiments described above are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and modifications made by those skilled in the art based on this utility model shall fall within the scope of protection of this utility model.
Claims
1. A fan structure with adjustable airflow, air pressure, and airflow direction, characterized in that, It includes a housing (1), a fan assembly (2) and a brushless motor (3), the brushless motor (3) being used to drive the fan assembly (2) to rotate; The fan assembly (2) includes a rotating part (21) rotatably connected to the outer shell (1), a servo motor (22) fixed to one side of the rotating part (21), and fan blades, wherein the fan blades are separately disposed on the rotating part (21); The rotating component (21) is provided with a slider (26), the fan blade is slidably connected to the slider (26), and the servo motor (22) is used to drive the slider (26) to reciprocate within the rotating component (21).
2. The fan structure with adjustable air volume, air pressure, and air outlet direction according to claim 1, characterized in that, The rotating component (21) is provided with a snap-fit groove (211), and the fan blade is snapped into the snap-fit groove (211).
3. The fan structure with adjustable air volume, air pressure, and air outlet direction according to claim 2, characterized in that, The fan blades are provided with at least three, including a fan surface (23) and a snap-fit surface (24). A snap-fit block (25) is provided at the bottom of the snap-fit surface (24). A sliding groove (261) is provided on the outer periphery of the slider (26). The snap-fit block (25) is slidably disposed in the sliding groove (261).
4. The fan structure with adjustable air volume, air pressure, and air outlet direction according to claim 3, characterized in that, The slider (26) is a regular polygon, and the number of sliding grooves (261) matches the number of fan blades.
5. The fan structure with adjustable air volume, air pressure, and air outlet direction according to claim 1, characterized in that, The outer shell (1) includes a flow guide (11), which is fixedly connected to the rotating component (21).
6. The fan structure with adjustable air volume, air pressure, and air outlet direction according to claim 5, characterized in that, A bearing (4) is provided between the flow guide (11) and the rotating part (21).
7. The fan structure with adjustable air volume, air pressure, and air outlet direction according to any one of claims 1-6, characterized in that, The outer casing (1) has an aromatherapy box (5) on the side near the brushless motor (3).