Intelligent directional air supply bladeless fan

Abstract

This case relates to an intelligent directional airflow bladeless fan, including a base and a body. The body rotates relative to the base. The body includes a rotating disk connected to the base, a front shell and a rear shell fixed to the rotating disk, and a fan system fixed to the front shell and / or the rear shell. The base is provided with a positioning shaft seat. The rotating disk is provided with a positioning shaft that fits into the positioning shaft seat and rotates circumferentially relative to the base, and a driving device that drives the positioning shaft to rotate. The fan system and the front shell or rear shell are fixed, and the front shell and rear shell are fixed to the rotating disk, so that the entire fan system can rotate relative to the base, realizing the oscillation function of the bladeless fan.

Description

Technical Field

[0001] This application relates to the field of bladeless fan technology, specifically to the field of intelligent directional airflow bladeless fan technology. Background Technology

[0002] Traditional vertical fans typically achieve their oscillation function through mechanical means such as gear sets, linkage mechanisms, and worm gears. This structure is mature and stable and has been widely used in the field of traditional fans.

[0003] However, when attempting to apply a similar oscillation mechanism to bladeless fans, its complex structure would occupy internal space, conflicting with the compact design philosophy of bladeless fans.

[0004] Secondly, due to the overall heavy center of gravity of bladeless fans and their generally bottom-intake and top-outtake principle, the air duct runs through the entire body. Furthermore, bladeless fans rely on the shape of the internal air duct and the air outlet to enhance the airflow amplification effect. Any change in the mechanical structure may disrupt the airflow path, reduce the air delivery efficiency, and it is also difficult to design a structure with localized oscillation at the air outlet.

[0005] Therefore, how to achieve intelligent, efficient and stable directional air delivery without compromising the original structural advantages of bladeless fans has become an important research direction in the current innovation of bladeless fan technology. Summary of the Invention

[0006] To address the aforementioned technical challenges, this application proposes an intelligent directional airflow bladeless fan. Through an innovative oscillation mechanism design and the application of a human body sensor, it achieves the intelligent directional airflow function of "wind following the person's movement".

[0007] To achieve the above objectives, the present application adopts the following technical solution:

[0008] A smart directional airflow bladeless fan includes a base and a body, wherein the body rotates relative to the base;

[0009] The body includes a rotating disk connected to the base, a front shell and a rear shell fixed to the rotating disk, and a fan system fixed to the front shell and / or the rear shell;

[0010] The base is provided with a positioning shaft seat, and the rotating disk is provided with a positioning shaft that fits into the positioning shaft seat and rotates circumferentially relative to the base, and a driving device that drives the positioning shaft to rotate.

[0011] Thus, by connecting the chassis and the rotating disk, and setting a drive device on the rotating disk to make it rotate circumferentially relative to the base, while fixing the fan system and the front or rear shell, and fixing the front or rear shell to the rotating disk, the entire fan system is designed to rotate relative to the base, achieving the oscillation function of the bladeless fan.

[0012] In some possible implementations, the base is provided with a plurality of arc-shaped guide grooves, and the rotating disk is connected to the base via guide posts that can slide in the guide grooves.

[0013] In some possible implementations, a support sleeve that can be fitted into the positioning shaft seat is also included, and the positioning shaft rotates within the support sleeve.

[0014] In some possible implementations, the positioning shaft seat is provided with an installation notch, and the support sleeve is provided with a limiting rib that can be positioned within the installation notch.

[0015] In some possible implementations, the fan system includes a centrifugal fan and an inner cover, the fan system being fixed to the front housing.

[0016] In some possible implementations, the drive device includes a motor fixed to the rotating disk and a crank transmission mechanism driven to rotate by the motor, and the base is provided with a slide for the linear movement of the crank transmission mechanism.

[0017] In some possible implementations, the crank drive mechanism includes a drive column axially connected to the motor and powered by the motor's rotation, a push column sliding on the slide rail, and a crank block that misaligns the drive column and the push column.

[0018] In some possible implementations, a controller disposed within the front housing and a human body sensor disposed within the controller are also included.

[0019] In some possible implementations, the human body sensing device is a microwave sensor.

[0020] In some possible implementations, a control system for controlling head shaking based on feedback signals from the motor and the human body sensor is also included. Attached Figure Description

[0021] Figure 1 This is a bottom view of the intelligent directional air supply bladeless fan of this application;

[0022] Figure 2 This is a schematic diagram of the sensor installation for the intelligent directional airflow bladeless fan of this application;

[0023] Figure 3 This is an exploded bottom view of the intelligent directional air supply bladeless fan of this application;

[0024] Figure 4 This is an exploded view of the base, support sleeve, and drive mechanism in this application;

[0025] Figure 5 This is a schematic diagram of the installation of the rotating base in this application;

[0026] Figure 6 This is a cross-sectional view of the intelligent directional airflow bladeless fan of this application;

[0027] Figure 7 yes Figure 6 Enlarged view of a portion of point A in the middle;

[0028] Figure 8 This is the rear inner view of the intelligent directional air supply bladeless fan of this application. Detailed Implementation

[0029] The following examples further illustrate the features of this application and other related features in detail, so as to facilitate understanding by those skilled in the art:

[0030] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions in the attached diagrams, while the terms “bottom surface,” “top surface,” “inner,” and “outer” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0031] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection 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 case based on the specific circumstances.

[0032] Please refer to Figure 1 and Figure 3 The intelligent directional airflow bladeless fan of this application includes a base 1 and a body 2. The bottom of the base 1 is provided with an anti-slip pad 11, which can be made of rubber, silicone, etc., which are common technical means in the industry and are not specifically limited thereto. The main point is that this application needs to realize the oscillation function, and the body 2 rotates relative to the base 1, which requires the anti-slip of the base 1.

[0033] Please combine Figure 2 and Figure 3 , Figure 8The main body 2 includes a rotating disk 21 connected to the base 1, and a front shell 22 and a rear shell 23 fixed to the rotating disk 21. Specifically, the front shell 22 and the rear shell 23 can be fitted together by using clips and screws, which is a common technique for bladeless fans. In this case, the bottom of the front shell 22 and the rear shell 23 extends into the bottom of the rotating disk 21. The front shell 22 and the rear shell 23 are fixed to the rotating disk 21 from the bottom of the rotating disk 21 by screws, which achieves the main frame fixation of the main body 2 without affecting the aesthetics.

[0034] Furthermore, by fixing the fan system 24 to the front shell 22 or the rear shell 23, the entire body 2 can rotate relative to the base 1. The fan system 24 mainly includes a centrifugal fan 241 and an inner cover 242. In a preferred embodiment, it can be fixed to the front shell 22 for easy maintenance from the rear shell 23.

[0035] The rotation method is explained in detail below; please refer to it. Figures 3 to 7 A positioning shaft seat 12 is provided on the base 1, and a positioning shaft 211 that can be fitted into the positioning shaft seat 12 and rotate circumferentially relative to the base 1 and a driving device 25 for driving the positioning shaft 211 to rotate are provided on the rotating disk 21.

[0036] Specifically, the positioning bushing 12 is an integral sleeve structure located in the center of the base 1, while the positioning shaft 211 is also a sleeve structure extending downwards from the center of the rotating disk 21. To ensure more stable rotation of the positioning shaft 211, a support sleeve 13 is provided that can be fitted into the positioning shaft seat 12, allowing the positioning shaft 211 to rotate within the support sleeve 13. The support sleeve 13 is preferably made of a wear-resistant material, such as metal or engineering plastic, which can effectively reduce wear on the positioning shaft seat 12 during rotation. Specifically, for ease of installation, the positioning shaft seat 12 has an installation notch 121, and the support sleeve 13 has two limiting ribs 131 at positions corresponding to the installation notch 121, positioned on both sides of the installation notch 121.

[0037] As mentioned above, actual bladeless fans have a certain weight, so supporting them only in the center could lead to tilting. To address this, the base 1 of this application has multiple arc-shaped guide grooves 14. In this embodiment, there are three guide grooves 14, forming a ring-shaped structure around the positioning bushing 12. Furthermore, a guide post 212 is provided at the bottom of the rotating disk 21. The guide post 212 can slide within the guide groove 14, and its trajectory can rotate in an arc shape as the body 2 rotates. When the guide post 212 is fitted into the guide groove 14, sliding pads 141 are provided at both the upper and lower ends of the guide groove 14 to clamp the guide groove 14 and fix it at the bottom with screws, keeping it in a slidable state. This is also one of the ways in which the rotating disk 21 and the base 1 are rotatably connected.

[0038] The driving method is described in detail below. The driving device 25 includes a motor 251 fixed to the rotating disk 21 and a crank transmission mechanism 252 driven by the motor 251. Preferably, the motor 251 is a stepper motor. Using a stepper motor can achieve precise positioning and speed control of the fan, quickly respond to changes in position, and provide a smooth, accurate, and low-noise oscillation effect. At this time, the base 1 is provided with a slide 15 that allows the crank transmission mechanism 252 to move linearly. The slide 15 is arranged in a straight line from the center to the outer periphery.

[0039] Specifically, the crank transmission mechanism 252 includes a drive column 2521 axially connected to the motor 251 and powered by the motor 251's rotation; a push column 2522 linearly reciprocating on the slide rail 15; and a crank block 2523 that misaligns the drive column 2521 and the push column 2522. The crank block 2523 can be a disc structure with the drive column 2521 at its upper outer periphery and the push column 2522 at its lower outer periphery on the other side. In this case, the slide rail 15 actually serves a limiting function. When the push column 2522 reciprocates linearly, the crank block 2523 drives the motor 251, which in turn drives the entire rotating disc 21 and the machine body 2 to oscillate.

[0040] Thus, by connecting the chassis 1 and the rotating disk 21, and setting a drive device 25 on the rotating disk 21 to make it rotate circumferentially relative to the base 1, and fixing the fan system 24 and the front shell 22 or the rear shell 23, and fixing the front shell 22 and the rear shell 23 to the rotating disk 21, the entire fan system 24 is designed to rotate relative to the base 1, realizing the oscillation function of the bladeless fan.

[0041] Furthermore, this application also provides a solution for automatically controlling the movement of the wind to follow the person's movements. Please refer to [reference needed]. Figure 2A controller 26 can be installed inside the front cover 22. That is, after the front cover 22 is closed, the controller 26 corresponds to the operation panel 221. At this time, a human body sensor 261 is installed in the controller 26. The controller part of household appliances is a common technical means in the industry and will not be described in detail in this application.

[0042] Preferably, the human body sensing device 261 selects a microwave sensor, such as a microwave radar sensor that detects the presence and movement of objects by emitting microwaves and receiving the reflected microwave signals. Another example is a microwave human sensor, whose application objective is directly to detect the presence and movement of human bodies. Microwave sensors can detect very subtle movements and even operate normally in low-light environments, making them ideal for scenarios involving automatic sensing and response to human activity.

[0043] Furthermore, this application also includes a control system for oscillation control based on feedback signals from the motor 251 and the human body sensor 261. Specifically, a "wind follows the person" function is set on the operation panel 221 of the bladeless fan or on a mobile APP. When a person approaches the bladeless fan, the human body sensor 261 will detect that an object is blocking the microwave signal within a certain range of angles, and then feed back to the controller 26 of the bladeless fan. The controller uses the instantaneously collected step distance data of the motor 251 and the human body position information to perform AI interactive calculations, and then issues control commands to enable the motor 251 to change its step distance or stop oscillation, thereby achieving a precise wind-following-the-person function.

[0044] As stated above, this case protects an intelligent directional airflow bladeless fan, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A smart directional airflow bladeless fan, characterized in that, Includes a base (1) and a body (2), wherein the body (2) rotates relative to the base (1); The body (2) includes a rotating disk (21) connected to the base (1), a front shell (22) and a rear shell (23) fixed to the rotating disk (21), and a fan system (24) fixed to the front shell (22) and / or the rear shell (23); The base (1) is provided with a positioning shaft seat (12), and the rotating disk (21) is provided with a positioning shaft (211) that fits into the positioning shaft seat (12) and rotates circumferentially relative to the base (1) and a driving device (25) that drives the positioning shaft (211) to rotate.

2. The intelligent directional airflow bladeless fan as described in claim 1, characterized in that, The base (1) is provided with multiple arc-shaped guide grooves (14), and the rotating disk (21) is connected to the base (1) through a guide post (212) that can slide in the guide groove (14).

3. The intelligent directional airflow bladeless fan as described in claim 1, characterized in that, It also includes a support sleeve (13) that can be fitted into the positioning shaft seat (12), and the positioning shaft (211) rotates within the support sleeve (13).

4. The intelligent directional airflow bladeless fan as described in claim 3, characterized in that, The positioning shaft seat (12) is provided with an installation notch (121), and the support sleeve (13) is provided with a limiting rib (131) that can be positioned within the installation notch (121).

5. The intelligent directional airflow bladeless fan as described in claim 1, characterized in that, The fan system (24) includes a centrifugal fan (241) and an inner cover (242), and the fan system (24) is fixed to the front shell (22).

6. The intelligent directional airflow bladeless fan as described in claim 1, characterized in that, The drive device (25) includes a motor (251) fixed on the rotating disk (21) and a crank transmission mechanism (252) driven to rotate by the motor (251). The base (1) is provided with a slide (15) for the linear movement of the crank transmission mechanism (252).

7. The intelligent directional airflow bladeless fan as described in claim 6, characterized in that, The crank transmission mechanism (252) includes a drive column (2521) axially connected to the motor (251) and powered by the rotation of the motor (251), a push column (2522) sliding on the slide rail (15), and a crank block (2523) that makes the drive column (2521) and the push column (2522) misaligned.

8. A smart directional airflow bladeless fan as described in any one of claims 1 to 7, characterized in that, It also includes a controller (26) disposed in the front housing (22) and a human body sensing device (261) disposed in the controller (26).

9. A smart directional airflow bladeless fan as described in claim 8, characterized in that, The human body sensing device (261) is a microwave sensor.

10. A smart directional airflow bladeless fan as described in claim 8, characterized in that, The drive device (25) includes a motor (251) fixed on the rotating disk (21), and also includes a control system for head shaking control based on feedback signals from the motor (251) and the human body sensor (261).

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