Bladeless fan mechanism with upper air inlet and lower air outlet

Abstract

The invention relates to the technical field of fans, in particular to a top-in and bottom-out bladeless fan mechanism. Three air guide arms are annularly and equidistantly connected to the inner side in a penetrating manner, and one ends of the inner sides of the three air guide arms are connected with a fan cabin in a penetrating manner; the inner wall of the air guide arm is provided with a ventilation channel penetrating through the fan cabin and the annular flow channel. The external centrifugal fan can extract air and exhaust the air into the annular flow channel, through the design of the flow guide air channel and the multiple flow deflectors, wind power is effectively buffered, the flow deflectors are guided to be attached to sound absorption materials at inlets, wind noise generated by air flowing is remarkably reduced, and on the premise that the ventilation effect (the wind speed reaches 1.37 m / s, and the wind area exceeds 0.8 m) is guaranteed, the ventilation efficiency is greatly improved. A relatively quiet use environment is created for a user, and the comfort is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fans, and in particular to a bladeless fan mechanism design with air entering from above and discharging from below. Background Art

[0002] Traditional fan devices generally rely on the rotation of blades to generate airflow. The blades cut the air to form wind speed, pushing the surrounding air in a specific direction, thereby achieving the effect of cooling or ventilation. However, traditional fans have many limitations, especially in modern homes and public places. The application experience has been challenged.

[0003] First of all, safety hazards are one of the main problems of traditional fans. The exposed rotating blades are potentially dangerous to children or pets, especially when they touch them, which may cause accidental injuries. In addition, cleaning the fan blades is also a headache. Dust easily adheres to the blades, which not only affects the efficiency of the fan, but may also be spread into the room through the airflow, causing a decrease in air quality.

[0004] Secondly, the noise problem of fans is also widely criticized by users. Due to the high-speed rotation of the blades, traditional fans inevitably produce a lot of noise, which not only affects the user experience, but may also cause interference in quiet environments (such as bedrooms or offices), reducing the comfort of use.

[0005] In order to improve these shortcomings, bladeless fans began to appear on the market. Bladeless fans use the Bernoulli principle and the Coanda effect to deliver air in a special airflow drive method. The basic principle is to inhale air through the motor in the base, then accelerate the airflow through the air duct inside the device, and finally release the airflow smoothly from the ring outlet.

[0006] The airflow provided by bladeless fans is softer, and unlike traditional fans, it does not produce strong, uninterrupted wind, but a more continuous and comfortable airflow. The appearance design of bladeless fans is simple and modern, easy to integrate into the home or office environment, and because there are no exposed blades, safety is improved, it is easier to clean and maintain, and the user experience is greatly improved.

[0007] Therefore, those skilled in the art provide a bladeless fan mechanism with air inlet from top and air outlet from bottom to solve the problems raised in the above background technology. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides: A bladeless fan mechanism with air inlet from above and air outlet from below, comprising: The inner side of the annular flow channel is connected to three wind guide arms at equal distances, and one end of the inner side of the three wind guide arms is connected to the fan compartment; The inner wall of the air guide arm is provided with a ventilation passage which passes through the fan chamber and the annular flow passage.

[0009] Preferably, the annular flow channel is in the shape of a circular ring, and a guide air duct is provided inside, and the bottom end of the guide air duct is connected to the annular flow channel.

[0010] Preferably: a mounting frame is detachably mounted on the top of the fan compartment, and an external centrifugal fan is mounted inside the fan compartment as a wind power source.

[0011] Preferably, the assembly frame is provided with a plurality of ventilation slots, and the ventilation slots are used for the air compression inlet of the external centrifuge.

[0012] Preferably, a fixed guide vane is fixedly mounted at the air inlet of the air guide arm inside the annular flow channel.

[0013] Preferably, one end of the guide plate away from the air guide arm is provided with six guide plates mounted on the inner wall of the air guide duct.

[0014] Preferably: an LED lamp body for lighting is installed at the bottom of the fan compartment.

[0015] Preferably, the six guide vanes are arranged in a stepped manner.

[0016] Technical effects and advantages of the present invention: In the present invention, the LED lamp body arranged at the bottom of the fan compartment can provide lighting for the room, thereby increasing the functionality of the device. In some dark environments, no additional lighting equipment is required, which is convenient for users to use and improves the convenience of the use scene.

[0017] In the present invention, the external centrifugal fan can draw air and discharge it into the annular flow channel. The design of the guide air duct and multiple guide vanes can effectively buffer the wind force. The guide vanes are attached with sound-absorbing materials at the inlet, which significantly reduces the wind noise generated by the air flow. While ensuring the ventilation effect (the wind speed reaches 1.37m / s and the wind range exceeds 0.8m), a relatively quiet use environment is created for users, thereby improving comfort.

[0018] The present invention adopts a bladeless design at the upper and lower air outlet positions, avoiding the potential safety hazards caused by traditional fan blades, such as children being injured by accidental touch of their fingers. It is particularly suitable for places with frequent activities such as homes and offices, and ensures the personal safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a bladeless fan mechanism with top-inlet and bottom-outlet provided by the present application; Figure 2This is a schematic diagram of the structure of an LED lamp body in a bladeless fan mechanism with top-inlet and bottom-outlet provided by the present application; Figure 3 It is a structural schematic diagram of a guide air duct in a bladeless fan mechanism with top-inlet and bottom-outlet provided in the present application.

[0020] In the figure: 1. Annular flow channel; 2. Air guide arm; 3. Fan compartment; 4. Assembly frame; 5. LED lamp body; 6. Air guide duct; 7. Air guide vane; 8. Guide vane. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0022] For examples, see Figure 1 to Figure 3 In this embodiment, a bladeless fan mechanism with air inlet from above and air outlet from below is provided, comprising: an annular flow channel 1; three air guide arms 2 are connected in an annular shape at equal distances inside, and a fan chamber 3 is connected to one end of the inner side of the three air guide arms 2; a ventilation passage is opened on the inner wall of the air guide arm 2, which passes through the fan chamber 3 and the annular flow channel 1. The angle between the air guide arm 2 and the annular flow channel 1 is 35°, the top length is 30mm, and the bottom length is 8mm.

[0023] The annular flow channel 1 is in the shape of a ring, and a guide air channel 6 is provided inside, and the bottom end of the guide air channel 6 is connected to the annular flow channel 1. The position where the guide air channel 6 is connected to the bottom end of the annular flow channel 1 is specifically the position where air is discharged during circulation. The top of the fan compartment 3 is detachably equipped with an assembly frame 4, and the fan compartment 3 is equipped with an external centrifugal fan as a wind power source.

[0024] The assembly frame 4 is used to detachably mount the bladeless fan mechanism with air inlet from the top and air outlet from the bottom on the indoor ceiling. The assembly frame 4 is provided with a plurality of ventilation slots, and the ventilation slots are used for the air compression inlet of the external centrifuge. A fixed guide vane 7 is fixedly mounted at the air inlet corresponding to the air guide arm 2 inside the annular flow channel 1. Six guide vanes 8 mounted on the inner wall of the guide air channel 6 are arranged at one end of the guide vane 7 away from the air guide arm 2. An LED lamp body 5 for lighting is installed at the bottom of the fan compartment 3.

[0025] According to the above embodiments, the working principle of the present invention is: The LED lamp body 5 disposed at the bottom of the fan compartment 3 can provide indoor lighting effects; The external centrifugal fan installed in the fan compartment 3 draws air along the outside of the assembly frame 4 and discharges it into the annular flow channel 1 connected to the air guide arm 2, and passes through the guide air channel 6 inside the annular flow channel 1 and six guide vanes 8 in sequence, and the six guide vanes 8 are used to buffer the wind force; The guide air duct 6 passes through the noise reduction guide vane 7 and cooperates with the guide vane 8 to effectively reduce the wind noise caused by the air flow; The wind speed reached 1.37m / s and the wind area exceeded 0.8m; The design of the upper and lower air outlets adopts a bladeless design at the outlet position of the guide air duct 6, which has higher safety.

[0026] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A bladeless fan mechanism with air inlet from top and air outlet from bottom, characterized in that: include: An annular flow channel (1); three air guide arms (2) are connected in an annular shape and equidistantly therefrom on the inner side; one end of the inner side of the three air guide arms (2) is connected in annular shape and equidistantly therefrom to form a fan chamber (3); The inner wall of the air guide arm (2) is provided with a ventilation passage that passes through the fan chamber (3) and the annular flow passage (1).

2. A bladeless fan mechanism with air inlet from above and air outlet from below according to claim 1, characterized in that: The annular flow channel (1) is in the shape of a circular ring and has a guide air channel (6) disposed inside, and the bottom end of the guide air channel (6) is connected to the annular flow channel (1).

3. The bladeless fan mechanism with air inlet from above and air outlet from below according to claim 1, characterized in that: The top of the fan chamber (3) is detachably equipped with an assembly frame (4), and the inside of the fan chamber (3) is equipped with an external centrifugal fan as a wind power source.

4. The bladeless fan mechanism with air inlet from above and air outlet from below according to claim 3, characterized in that: The assembly frame (4) is provided with a plurality of ventilation slots, and the ventilation slots are used for the air compression inlet of the external centrifuge.

5. The bladeless fan mechanism with air inlet from above and air outlet from below according to claim 1, characterized in that: A fixed flow guide plate (7) is fixedly mounted inside the annular flow channel (1) at the air inlet corresponding to the air guide arm (2).

6. The bladeless fan mechanism with air inlet from above and air outlet from below according to claim 5, characterized in that: One end of the flow guide plate (7) away from the air guide arm (2) is provided with six flow guide plates (8) mounted on the inner wall of the flow guide air duct (6).

7. The bladeless fan mechanism with air inlet from above and air outlet from below according to claim 1, characterized in that: An LED lamp body (5) for lighting is installed at the bottom of the fan compartment (3).

8. The bladeless fan mechanism with air inlet from above and air outlet from below according to claim 6, characterized in that: The six guide vanes (8) are arranged in a stepped manner.

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