WO2011091700A1

WO2011091700A1 - Bladeless fan

Info

Publication number: WO2011091700A1
Application number: PCT/CN2010/080612
Authority: WO
Inventors: 罗兆素
Original assignee: 益阳市拓达电器有限公司
Priority date: 2010-01-27
Filing date: 2010-12-31
Publication date: 2011-08-04
Also published as: CN102135105A; CN102135105B

Abstract

A bladeless fan includes a main body (4), an air outlet ring (1) on the top of the main body, and a base (19) at the bottom of the main body. A whole circle of air inlets is provided on the main body. An air outlet is provided in the air outlet ring. An air guide passage is provided within the main body. A secondary pressurizing air passage is provided within the air outlet ring. The whole circle of air inlets, the air guide passage, the secondary pressurizing air passage and the air outlet are in communication with each other. A parallel air guide surface (41) paralleling an air outlet stream and an inclined air guide surface (40) at an angle with respect to the air outlet stream are provided at a position in the air outlet ring adjacent to the air outlet. By providing such a parallel air guide surface and such an inclined air guide surface adjacent to the air outlet, the fan can provide an upwardly diffusing air stream, thereby drawing a side air stream and a following air stream forward, and thus can provide a naturally and softly air-cooling effect for users.

Description

Bladeless fan

Technical field

This invention relates to fans and, more particularly, to a bladeless fan.

Background technique

Many types of indoor fans are known to us. Conventional fans typically include a separate set of blades or wings mounted for rotation about an axis, and a drive mounted about the axis to rotate the entire set of blades. Due to the need for the rotation of the fan blades, the conventional fan has certain safety hazards and is inconvenient to clean. At present, there are some bladeless fans, but the bladeless fan has a wind guiding surface at the air outlet which is set to a smooth wall. The surface directs the flow of air in the local space so that the guided airflow moves along the surface. This surface-flowing airflow reduces the speed of wind operation due to the viscosity of the wind and the resistance of the surface.

Summary of the invention

The technical solution of the present invention is that, for the bladeless fan, the airflow is guided by the smooth surface plus the plane and the inclined surface to generate and guide the increased airflow, and the airflow passing through the surface reduces the wind due to the wall attachment property of the wind and the surface resistance. A bladeless fan provided with operating speed and directing airflow from the inside/back/side of the air ring.

The technical solution adopted by the present invention to solve the technical problem is: constructing a bladeless fan, comprising: a main body, an air outlet ring at the top of the main body, and a base at the bottom of the main body, wherein the main body is provided with a full circle An air inlet, an air outlet is disposed on the air outlet ring, a guiding air duct is disposed on the main body, and a secondary pressurized air duct area is disposed in the air outlet ring; the full circle air inlet a flow guiding duct, a secondary supercharging duct and an air outlet communicating with each other, and a parallel wind guiding surface parallel to the horizontal plane and the horizontal plane are disposed at a position adjacent to the air outlet on the air outlet ring A slanting guide wind surface at a certain angle.

In the bladeless fan of the present invention, the air outlet ring is an annular body.

In the bladeless fan of the present invention, the main body is rotatably disposed on the base.

In the bladeless fan of the present invention, the body is rotated forward by an angle of not more than 10 degrees and the angle of backward rotation is not more than 10 degrees.

In the bladeless fan of the present invention, the base includes a fixed base and an adjustment base that is rotatably disposed on the fixed base.

In the bladeless fan of the present invention, the angle at which the adjustment base is rotated to the left is not more than 45 degrees and the angle of rotation to the right is not more than 45 degrees.

In the bladeless fan of the present invention, a seal ring is provided at a joint of the air outlet ring and the main body.

In the bladeless fan according to the present invention, a bracket for mounting an electric motor is disposed in the main body, and an anti-vibration foot and a shock-proof seal ring are disposed between the bracket and the main body.

The bladeless fan embodying the present invention has the following beneficial effects: by providing a parallel wind guiding surface parallel to the horizontal plane at the air outlet and an inclined wind guiding surface at an angle to the horizontal plane, the upwardly diffusing airflow can be provided, thereby pulling out The airflow inside/side/back of the air ring runs forward together to provide the user with a natural and gentle cooling effect.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a schematic structural view of an embodiment of a bladeless fan of the present invention;

Figure 2A is a partial enlarged view of the portion A in Figure 1;

Figure 2B is a partial enlarged view of the portion B in Figure 1;

Figure 2C is a partial enlarged view of the portion C in Figure 1;

Figure 3 is a schematic view showing the structure of the bladeless fan shown in Figure 1 rotating forward;

Figure 4 is a partial enlarged view of the portion D in Figure 3;

Figure 5 is a schematic view showing the structure of the adjustment base shown in Figure 1 rotated to the right;

Figure 6 is a schematic view showing the structure of the adjustment base shown in Figure 1 rotated to the left;

Figure 7 is a front elevational view of Figure 1.

detailed description

As shown in FIG. 1, in an embodiment of the bladeless fan of the present invention, it mainly consists of three parts, namely a main body 4, and an air outlet ring 1 and a base 19 respectively located at the top of the main body 4, wherein the main body 4 serves as the main body 4 The main mounting structure of the bladeless fan is provided with a full-circle air inlet on the main body 4. In the embodiment of Fig. 1, the main body 4 is in the shape of a cylinder, which may be a cylinder, a square cylinder and other shapes. . For the arrangement of the air inlet, a plurality of air inlets may be arranged on the side of the main body 4 of the cylindrical structure along the same horizontal position, thereby forming a full circle air inlet. An electric motor 28 and an impeller connected to the electric motor 28 are disposed inside the main body 4, and the impeller is connected to a rotating shaft extending outward from the electric motor 28, so that the impeller can be rotated to generate suction after the power supply is connected, and the external air can be taken in. Air inlet inhalation. For the mounting of the motor 28, in this embodiment, the bracket 5 is provided in particular in the main body 4, and then the motor 28 is placed on the bracket 5. Further, in order to enhance the anti-shock effect of the bladeless fan, the bracket 5 is fixed in the main body 4 through the anti-vibration foot 7 and the anti-vibration seal ring 30. In order to make the noise generated by the motor 28 when it is in operation, the soundproofing cotton 8 is further provided at the bottom of the main body 4.

As shown in FIG. 1, a guide air duct is disposed between the motor 28 and the air inlet in the main body 4, and the air guiding duct can guide the airflow upward into the air outlet ring 1 at the top of the main body 4, when the airflow enters the air outlet ring. After 1 inside, the secondary air flow duct in the air ring 1 is continuously rotated and flows, and a pressure zone is generated, whereby the air passage in the air outlet ring 1 is a secondary pressurized air duct, and the secondary supercharging air is in the second supercharging air During the rotation and supercharging of the airflow in the channel, part of the airflow may overflow from the air outlet on the air outlet ring 1 in order to make the overflow airflow form an upward and natural gentle wind direction and wind force, as shown in FIG. 2A, in the air outlet ring. A parallel wind guiding surface 41 parallel to the air flow and a diagonal wind guiding surface 40 at an angle to the air flow are disposed at a position adjacent to the air outlet, and the parallel air guiding surface 41 acts to change the air flow direction. The portion of the airflow that can be extruded through the inclined guide wind surface 40 can change the original direction and obliquely flow, thereby providing an upwardly diffused airflow, thereby pulling the side and rear airflows forward together, and It can provide users with a natural and gentle wind and cool effect.

As shown in FIG. 7, the structure of the air outlet ring 1 may be designed as an annular body, or may be another shape such as a square, an ellipse or the like. In this embodiment, the air outlet ring is a circular body. As shown in FIG. 2B, a seal ring 30 is provided at the joint between the air outlet ring 1 and the main body 4, so that the bladeless fan has an effect of preventing turbulence of airflow. As shown in FIG. 2C, a shock-proof sealing ring 31 is also provided at the joint between the bracket 5 and the main body 4.

As shown in FIGS. 3 and 4, the main body 4 is rotatably disposed on the base 19, and the front-rear direction of the main body 4 is defined as a front view having an air outlet as shown in FIG. The view direction is backward. In this embodiment, the angle at which the main body 4 is rotated forward is not more than 10 degrees and the angle of backward rotation is not more than 10 degrees, so that the air outlet ring 1 can be rotated forward and backward by the main body 4. As shown in FIG. 4, for the rotating mechanism, it mainly includes a circular tooth portion 51 having a continuous groove and a positioning portion 52 having a projection matching the groove of the tooth portion 51. By the action of the external force, it is adjusted in which groove of the tooth portion 51 the projection of the positioning portion 52 is located, thereby realizing the front and rear rotation. In the embodiment shown in FIG. 4, the tooth portion 51 has nine grooves, and when the protrusion of the positioning portion 52 is located in the middle groove, the air outlet ring 1 and the main body 4 are in a normal upright state, so that The positioning portion 52 can adjust the three gear positions forward and backward, and the angle adjusted by each gear position is 3.3 degrees to realize three different inclination angles and normal upright angles before and after.

As shown in Figures 1, 5 and 6, the base 19 includes a fixed base and an adjustment base that is rotatably disposed on the fixed base. In a preferred embodiment, the angle at which the adjustment base is rotated to the left is no more than 45 degrees and the angle of rotation to the right is no more than 45 degrees. For the rotating mechanism, it is mainly composed of a transmission arm 13, a sway motor 14, a chute 10, a lands 20, and a POM shaft 16 and a 3 pcs slide 32. Further, a rubber leg 17 and a knob and a key PCB assembly 11 are provided at the bottom of the base 19.

The present invention has been described in terms of several specific embodiments, and it will be understood by those skilled in the art In addition, various modifications may be made to the invention without departing from the scope of the invention. Therefore, the invention is not limited to the specific embodiments disclosed, but all the embodiments falling within the scope of the appended claims.

Claims

What is claimed is: 1. A bladeless fan comprising a main body, an air outlet ring at a top of the main body, and a base at a bottom of the main body, wherein the main body is provided with a full circle air inlet, and the air outlet ring is provided with An air outlet, wherein a guiding air duct is disposed on the main body, and a secondary pressurized air duct is disposed in the air outlet ring; the full circle air inlet, the air guiding air channel, and the second increasing The pressure air duct and the air outlet are in communication with each other, and a parallel air guiding surface parallel to the horizontal plane and a diagonal wind guiding surface at an angle to the horizontal plane are disposed at a position adjacent to the air outlet on the air outlet ring.

2. The bladeless fan of claim 1 wherein said air outlet ring is an annular body.

3. The bladeless fan of claim 1 wherein said body is angularly adjustable forward and backward on said base.

4. A leafless fan according to claim 3, wherein the body is rotated forward by an angle of no more than 10 degrees and the angle of backward rotation is no more than 10 degrees.

The bladeless fan according to claim 1, wherein the base comprises a fixed base and an adjustment base that is rotatably disposed on the fixed base.

6. The leafless fan according to claim 5, wherein the adjustment base is rotated to the left by an angle of no more than 45 degrees and an angle of rotation to the right is not more than 45 degrees.

The bladeless fan according to any one of claims 1 to 6, wherein a seal ring is provided at a joint between the air outlet ring and the main body.

The bladeless fan according to any one of claims 1 to 6, wherein a bracket for mounting an electric motor is disposed in the main body, and an anti-vibration foot and a shockproof are disposed between the bracket and the main body. Sealing ring.