Miniature brushless ducted fan with LED illumination
By integrating LED lighting and a multi-functional charging port into the miniature fan and optimizing the air duct structure, the problems of limited functionality and charging methods in miniature fans have been solved, improving the fan's practicality and airflow performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINDO BEAUTY TECH (GUANGZHOU) CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional miniature fans have limited functionality, lack lighting, have only one charging method, and have an unreasonable airflow design, which limits their practicality and applicability.
Design a miniature brushless ducted fan with LED lighting, combining LED beads and a turbine fan, featuring a multi-functional charging port, and optimizing the air duct structure to enhance airflow.
It combines fan and lighting functions, offers multiple charging methods, enhances the fan's practicality and airflow effect, and is suitable for various usage scenarios.
Smart Images

Figure CN224120397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan technology, specifically to a miniature brushless ducted fan with LED lighting. Background Technology
[0002] Miniature fans are popular in daily life due to their small size and portability. However, traditional miniature fans have limited functionality, only providing cooling, which is insufficient to meet people's needs in various scenarios. They also rarely offer lighting, which is necessary in low-light conditions or at night, requiring both cooling and illumination. Their practicality needs improvement. Furthermore, current miniature fans have limited charging options; damaged or incompatible charging ports can affect their operation. Additionally, some miniature fans have poorly designed airflow, resulting in weak airflow. These issues, to some extent, limit the practicality and applicability of miniature fans. Utility Model Content
[0003] The purpose of this invention is to provide a miniature brushless ducted fan with LED lighting, in order to solve the above-mentioned technical problems.
[0004] This utility model provides a miniature brushless ducted fan with LED lighting, including a housing. The front of the housing has a charging port, and a control switch and an indicator light are installed on the top of the charging port. A lampshade is embedded on the top of the indicator light, and a lamp board is installed inside the lampshade. A control board is installed on the back of the lamp board, and the control board is installed in a mounting cavity inside the housing. A battery is also installed inside the mounting cavity. The top of the housing has a through-flow air duct, and an inverted turbine fan is installed inside the air duct.
[0005] As a preferred embodiment of this utility model, the surface of the lamp board is equipped with a plurality of LED beads arranged in a rectangular array, the surface of the control board is integrated with a spare magnetic charging port opposite to the charging hole, and the top of the control board is integrated with a Type-C main charging port.
[0006] In a preferred embodiment of this invention, the air inlet of the turbine fan is located at the top of the air duct, and the air outlet of the turbine fan is located at the bottom of the air duct.
[0007] As a preferred embodiment of the present invention, the outer shell is a rectangular metal shell, and the side corners of the outer shell are provided with arc-shaped transition surfaces.
[0008] As a preferred embodiment of this utility model, the top of the outer shell is also fitted with a detachable cover plate, the surface of which is provided with an air inlet and an arc-shaped notch, the air inlet being directly opposite the air duct, and the arc-shaped notch being opposite the Type-C main charging port.
[0009] In a preferred embodiment of this utility model, the control switch is a multi-functional switch, which is electrically connected to the microcontroller integrated on the control board. The Type-C main charging port and the magnetic charging port are electrically connected to the microcontroller through a power control chip integrated on the surface of the control board. The power control chip is electrically connected to the microcontroller and the battery. The microcontroller is also electrically connected to the indicator light, the turbine fan, and the light board.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1) The present invention provides a miniature brushless ducted fan with LED lighting. A charging port is provided on the front of the housing, and a control switch and indicator light are installed on the top. A lamp panel and multiple LED beads are installed inside the lamp cover, which realizes the combination of fan and lighting functions and meets the user's needs in different scenarios. Especially when using it for night travel and outdoor camping, users can enjoy the coolness brought by the fan and obtain lighting. Moreover, the multiple LED beads distributed in an array can form different light patterns (such as special light patterns such as SOS) by controlling the light emission sequence or brightness of the LED beads, which increases the functionality of this miniature brushless ducted fan and makes it more practical.
[0012] 2) This utility model features a miniature brushless ducted fan with LED lighting. The control board integrates a spare magnetic charging port and a Type-C main charging port, solving the problem of a single charging method. Even if one charging port is damaged or incompatible, it can still be charged through another method, ensuring normal use of the fan. In addition, an inverted turbine fan is installed inside the duct, with the air inlet located at the top of the duct and the air outlet located at the bottom of the duct. This duct design results in better airflow and stronger airflow. The outer shell is a rectangular metal shell with arc-shaped transition surfaces at the side corners, which ensures structural strength and improves safety and comfort during use. At the same time, the simple shape and structural composition allow the miniature brushless ducted fan to be as small as possible, making it convenient for users to carry. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0015] Figure 2 This is one of the structural schematic diagrams of Embodiment 1 of this utility model;
[0016] Figure 3 This is a split diagram of Embodiment 1 of the present utility model;
[0017] Figure 4 This is a schematic diagram of the control board structure of Embodiment 1 of this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model;
[0019] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of this utility model.
[0020] In the diagram: 100, outer casing; 110, charging port; 120, control switch; 130, indicator light; 140, lampshade; 141, lamp panel; 142, LED beads; 150, air duct; 160, mounting cavity; 170, cover plate; 171, air inlet; 172, arc-shaped notch; 200, turbine fan; 300, control board; 310, magnetic charging port; 320, Type-C main charging port; 400, battery. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Example 1
[0023] Please see Figure 1-4 A miniature brushless ducted fan with LED lighting includes a housing 100. A charging port 110 is provided on the front of the housing 100. A control switch 120 and an indicator light 130 are installed on the top of the charging port 110. A lamp cover 140 is embedded on the top of the indicator light 130. A lamp board 141 is installed inside the lamp cover 140. A control board 300 is installed on the back of the lamp board 141. The control board 300 is installed in a mounting cavity 160 provided inside the housing 100. A battery 400 is also installed inside the mounting cavity 160. A through air duct 150 is provided on the top of the housing 100. An inverted turbine fan 200 is installed inside the air duct 150.
[0024] The surface of the light board 141 is equipped with multiple LED beads 142 arranged in a rectangular array. The surface of the control board 300 is integrated with a spare magnetic charging port 310 opposite to the charging hole 110. The top of the control board 300 is integrated with a type-C main charging port 320.
[0025] Specifically, in daily use, users can control the start and stop of the turbine fan 200 by pressing the control switch 120, thus controlling the airflow. After the turbine fan 200 is started, it can draw air in from the air duct 150 and then blow it out from the bottom of the air duct 150, creating a breeze to cool the user. Users can also control the on / off state of the LED beads 142 by pressing the control switch 120, thus controlling the lighting. When the user turns on the lighting function, current is transmitted from the battery 400 through the control board 300 to the lamp board 141, illuminating the LED beads 142 and providing lighting for the surrounding environment. The rectangular array arrangement allows for a more uniform distribution of light, improving the lighting effect.
[0026] Indicator light 130 serves to indicate status, displaying the charging status during charging and the corresponding operating status when the fan or lighting function is turned on, allowing users to clearly understand the device's operation. The backup magnetic charging port 310 integrated on the surface of the control board 300 and the Type-C main charging port 320 integrated on the top provide multiple charging options. When the user uses the Type-C main charging port 320 to charge, power is transmitted to the control board 300 through this interface. After being regulated by the power control chip on the control board 300, the battery 400 is charged. If the Type-C main charging port 320 is damaged or incompatible, the user can use the magnetic charging port 310 to charge, which is also regulated by the power control chip on the control board 300, ensuring the stability and reliability of the device's charging.
[0027] The microcontroller on the control board 300 coordinates and controls the operation of various components to ensure the normal operation of the fan and lighting functions.
[0028] In this embodiment: the air inlet of the turbine fan 200 is located at the top of the air duct 150, and the air outlet of the turbine fan 200 is located at the bottom of the air duct 150.
[0029] Specifically, when the user turns on the fan function, the control switch 120 transmits a signal to the microcontroller on the control board 300. The microcontroller controls the turbine fan 200 to start running. When the turbine fan 200 is running, its air inlet generates a strong suction force, drawing in surrounding air from the top of the air duct 150. The top air inlet design makes full use of the surrounding air resources, allowing air to smoothly enter the air duct 150. As the turbine fan 200 rotates at high speed, the drawn-in air is accelerated and compressed inside the turbine fan 200, forming an airflow with a certain pressure. At the same time, the bottom air outlet design causes the airflow to drive the surrounding airflow as it flows downward, forming a larger range of air circulation and further enhancing the fan's performance.
[0030] In this embodiment: the outer shell 100 is a rectangular metal shell, and the side corners of the outer shell 100 are provided with arc-shaped transition surfaces.
[0031] Specifically, the outer shell 100, made of metal, has high hardness and toughness, providing reliable protection for the internal components and enhancing the product's quality. The curved transition surface prevents sharp edges from causing injury to users.
[0032] In this embodiment: the top of the outer shell 100 is also fitted with a detachable cover plate 170. The surface of the cover plate 170 is reserved with an air inlet 171 and an arc-shaped notch 172. The air inlet 171 is directly opposite to the air duct 150, and the arc-shaped notch 172 is opposite to the type-c main charging port 320.
[0033] Specifically, the snap-fit connection includes a removable cover plate 170, which allows users to easily remove the cover plate 170 from the snap-fit connection at the top of the outer casing 100, directly accessing the internal components for maintenance and repair. The air inlet 171 ensures airflow through the air duct 150, and the arc-shaped notch 172 allows the charging cable to be easily inserted into the Type-C main charging port 320.
[0034] In this embodiment: the control switch 120 is a multi-function switch. The control switch 120 is electrically connected to the microcontroller integrated in the control board 300. The type-C main charging port 320 and the magnetic charging port 310 are electrically connected to the microcontroller through a power control chip integrated on the surface of the control board 300. The power control chip is electrically connected to the microcontroller and the battery 400. The microcontroller is also electrically connected to the indicator light 130, the turbine fan 200, and the light board 141.
[0035] Specific operating principle: When the user presses control switch 120 to turn on the fan, the microcontroller receives the signal and sends a start command to the turbine fan 200, causing the turbine fan 200 to start running, drawing in air from the top of the air duct 150 and blowing it out from the bottom, bringing coolness to the user. When the user presses control switch 120 again to turn off the fan, the microcontroller sends a stop command, causing the turbine fan 200 to stop running.
[0036] When the user presses the control switch 120 to turn on the lighting function, the microcontroller receives the signal and controls the current to flow from the battery 400 to the lamp board 141, lighting up the LED beads 142 on the lamp board 141 to provide lighting for the surrounding environment. By pressing the control switch 120 multiple times, the microcontroller can also adjust the brightness of the LED beads 142 to meet the user's lighting needs in different scenarios. Moreover, the array of multiple LED beads 142 can form different light patterns, such as SOS and other special light patterns, by controlling the light emission sequence or brightness of the LED beads 142, increasing the functionality of this type of miniature brushless ducted fan for outdoor use.
[0037] When the battery 400's power is too low, the microcontroller can control the indicator light 130 to issue a low power warning signal, reminding the user to charge it in time. The power control chip can monitor the battery 400's power status in real time and make corresponding controls according to the power status. When the battery 400's power is low, the power control chip will first obtain power from the charging port to charge the battery 400. When the battery 400 is fully charged, the power control chip will automatically stop charging to prevent the battery 400 from being overcharged and protect the safety and lifespan of the battery 400.
[0038] Example 2
[0039] Please see Figure 5 The technical feature that distinguishes this example from Embodiment 1 is that the front of the outer shell 100 does not have a charging hole 110, and the surface of the control board 300 does not integrate a spare magnetic charging port 310 opposite to the position of the charging hole 110.
[0040] Specifically, this type of miniature brushless ducted fan does not have a charging port 110 and a spare magnetic charging port 310. It can charge the battery 400 through the main type-C charging port 320. While ensuring that the miniature brushless ducted fan can be used normally, it can also effectively reduce the processing and manufacturing cost of the product. It also belongs to a product type protected by this utility model.
[0041] Example 3
[0042] Please see Figure 6The technical feature that distinguishes this example from embodiment 2 is that, in order to further reduce the manufacturing cost of the product and ensure that the miniature brushless ducted fan can output air normally, the lamp cover 140 may not be installed on the front of the housing 100, and the lamp board 141 and LED beads 142 are not installed inside the lamp cover 140.
[0043] Specifically, this type of miniature brushless ducted fan eliminates the need for lighting components such as the lampshade 140, lamp board 141, and LED beads 142, allowing the miniature brushless ducted fan to only have the practical function of air outlet, further reducing the cost of the product and making it more cost-effective in the market. It also falls under the product type protected by this utility model.
[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A miniature brushless ducted fan with LED lighting, comprising a housing (100), characterized in that: The front of the outer casing (100) is provided with a charging hole (110). A control switch (120) and an indicator light (130) are installed on the top of the charging hole (110). A lampshade (140) is embedded on the top of the indicator light (130). A lamp board (141) is installed inside the lampshade (140). A control board (300) is installed on the back of the lamp board (141). The control board (300) is installed in a mounting cavity (160) provided inside the outer casing (100). A battery (400) is also installed inside the mounting cavity (160). A through air duct (150) is provided on the top of the outer casing (100). An inverted turbine fan (200) is installed inside the air duct (150).
2. A miniature brushless ducted fan with LED lighting according to claim 1, characterized in that: The surface of the lamp board (141) is equipped with a plurality of LED beads (142) arranged in a rectangular array. The surface of the control board (300) is integrated with a spare magnetic charging port (310) opposite to the charging hole (110). The top of the control board (300) is integrated with a type-C main charging port (320).
3. A miniature brushless ducted fan with LED lighting according to claim 1, characterized in that: The air inlet of the turbine fan (200) is located at the top of the air duct (150), and the air outlet of the turbine fan (200) is located at the bottom of the air duct (150).
4. A miniature brushless ducted fan with LED lighting according to claim 1, characterized in that: The outer shell (100) is a rectangular metal shell, and the side corners of the outer shell (100) are provided with arc-shaped transition surfaces.
5. A miniature brushless ducted fan with LED lighting according to claim 2, characterized in that: The top of the outer casing (100) is also fitted with a detachable cover plate (170). The surface of the cover plate (170) is provided with an air inlet (171) and an arc-shaped notch (172). The air inlet (171) is directly opposite to the air duct (150), and the arc-shaped notch (172) is opposite to the type-c main charging port (320).
6. A miniature brushless ducted fan with LED lighting according to claim 2, characterized in that: The control switch (120) is a multi-functional switch. The control switch (120) is electrically connected to the microcontroller integrated on the control board (300). The type-C main charging port (320) and the magnetic charging port (310) are electrically connected to the microcontroller through a power control chip integrated on the surface of the control board (300). The power control chip is electrically connected to the microcontroller and the battery (400). The microcontroller is also electrically connected to the indicator light (130), the turbine fan (200), and the lamp board (141).