TW201331480A - Electric fan - Google Patents

Abstract

An electric fan includes a body, a power chamber, a DC frequency-changing motor, and a fan. The power chamber is formed in a lower portion of the body, and the DC frequency-changing motor and the fan are installed in the power chamber. The DC frequency-changing motor rotates the fan that may produce air current. Further, an air current guiding room is formed on the power chamber, guiding the air current produced by the fan upward therein. Then, plural wind holes are provided in an upper portion of the body, just on the air current guiding room, with each wind hole divided by two wall plates that can be adjusted to change the wind direction and to allow the wind to pass through or to be blocked up.

Description

Fan structure

The invention relates to a fan structure, in particular to a DC variable frequency motor for driving a fan element, and the air flow generated by the fan element is guided upward by a flow guiding chamber, and the air outlet is determined by adjusting the air outlet blade. The structure innovator of the power-saving and environmentally-friendly DC inverter fan of the wind or the wind.

The conventional fan, such as the Taiwan New Patent Bulletin No. 122193, "a novel fan structure design with a 360-degree agitated airflow function and an electro-optical effect" is driven by a conventional cylindrical fan to drive the blade, and by the blade set The generated airflow is formed by a plurality of vent holes formed by the interval between adjacent blades, and then a plurality of blades disposed at an angle between the toroidal surface of the annular draft tube and the lower ring surface are inclined at an angle. A guide hole is formed between adjacent blades to guide the airflow to the outside of the fan.

For example, Taiwan's new patent announcement No. 190865 "360-degree automatic rotary type cooling fan improved structure" is a rotating cover body built in the outer cover net, and a fan and a motor are arranged in the rotating cover body, and the number of the rotating cover body ring is set. At the air outlet, the airflow by the fan blade and the motor is blown up and the body is rotated 360 degrees to the periphery.

For example, Taiwan's new patent announcement No. 19832 "New Fan" is to set up the vertical spoiler blade on the central shaft, and then set the number of guide vanes relative to the upright blade, and set up the vertical motor with the blade center shaft Fixed, when the fan blade rotates by the motor, the guide vane can be used to guide the gas between the vertical blades, and then the vertical airflow fan is used to fan the guided airflow to blow the wind belt around.

For example, Taiwan's new patent No. M262590 "Electric Fan" has a turbo fan at the base and a cover at the base. The outer cover is provided with a wind inlet hole corresponding to the air inlet of the turbo fan, and then the air guide plate is arranged above the arc surface of the outer cover. And adjusting the blade group on the inner side of the front cover plate. When the turbo fan is started, the air is sucked from the air inlet grill hole of the outer cover and sent out through the air inlet, and along the air guiding slope, the curved surface of the outer cover and the wind guide The plate is blown out by the air outlet grille of the front cover, and the upper and lower air outlet angles can be conveniently adjusted by adjusting the blade set by turning.

For example, Taiwan's new patent No. M343075 "Multi-directional independent steering fan" separates multiple layers of independent space in the fan frame area, and then combines an active wind direction circle to form the outer casing of the fan, each moving wind direction. The rotating ring is provided with an air inlet hole and an air outlet port, and the air outlet port is provided with a plurality of air guiding blades for adjusting the elevation angle, and each of the moving wind direction rotating rings can independently rotate relative to the electric fan frame, thereby independently adjusting the air blowing direction of each moving wind direction rotating ring.

That is to say, none of the above-mentioned conventional techniques can achieve the function of the present invention. In the case of not using the rotating tower, the wind can still be 360°, and the wind direction and the air outlet can be adjusted every 90 degrees.

For this reason, the inventors of the present invention have accumulated years of experience in designing and manufacturing related DC variable frequency motors, and have studied the problems of the prior art described above, and have invented the present case.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fan structure innovation in which a DC variable frequency motor is used to drive a fan element to generate an air flow and direct the air flow through the flow guiding chamber to the outside of the fan.

The second object of the present invention is to use a low-energy DC inverter motor to make a low-noise green fan structure.

The fan structure of the present invention is provided in the fan body, and is provided with a DC variable frequency motor and a fan element, and uses a DC variable frequency motor to drive the fan element to generate an air flow.

The fan structure of the present invention has a flow guiding chamber above the power chamber, and the air flow generated by the fan element is guided upward by the flow guiding chamber.

In the fan structure of the present invention, a plurality of air outlets are arranged above the flow guiding chamber, and each of the air outlets is provided with a wind blade, and the wind blade is adjusted to determine the wind direction and whether the air is discharged, and the body does not need to rotate, that is, Can produce a 360 degree wind direction.

In this way, in order to enable the inspector to fully understand the practical and progressive design of the present invention, the following is a schematic diagram of the following: Figure 1-4, which is a first embodiment of the fan structure of the present invention, the first embodiment includes at least: The main body 1 is provided with a power chamber 10 below the body 1. The power chamber 10 is provided with a DC variable frequency motor 2 and a fan element 3 (the two are combined into one), wherein the fan element 3 is configured as an axial fan. And driving the fan element 3 to generate airflow by using the DC inverter motor 2, the side wall 100 of the power chamber 10 is provided with a plurality of airflow holes 101, and after the DC inverter motor 2 drives the fan component 3, the airflow hole 101 is guided by the airflow hole 101. The upper airflow is generated through the two sides of the fan element 3, and reaches the flow guiding chamber 11 through the draining port 30 (see Figs. 3 and 4).

3 and 4, a flow guiding chamber 11 is disposed above the power chamber 10, and the flow guiding chamber 11 is disposed above the drain port 30 of the fan element 3 to guide the airflow generated by the fan element 3 upward.

3 and 4, a plurality of air outlets 12 are disposed above the flow guiding chamber 11. In this embodiment, four air outlets 12 are provided, and two air outlets may be provided as shown in FIG. 6, or as shown in FIG. Three outlets depend on actual needs. The air outlet 12 is provided with the wind blade 120 (see FIG. 2), and the wind blade 120 is adjusted to determine the wind direction and whether or not the air is blown. Thus, the fan of the present invention can be generated without rotating the body 1. The airflow has the effect of 360 degrees of wind, or can be adjusted freely according to the demand.

FIG. 5 is a second embodiment of the fan structure of the present invention. The second embodiment is derived from the first embodiment. The second embodiment includes at least a body 1 , and the power chamber 10 is disposed under the body 1 . The chamber 10 is provided with a DC inverter motor 2 and a fan element 3, wherein the fan element 3 is configured as an annular fan, and the fan element 3 is driven by the DC inverter motor 2 to generate an air flow. The air flow hole 101a is disposed below the power chamber 10. After the DC inverter motor 2 drives the fan element 3, the airflow hole 101a is guided by the airflow hole 101a to generate an upward airflow through the fan element 3, and reaches the flow guiding chamber 11.

As shown in Fig. 5, a flow guiding chamber 11 is disposed above the power chamber 10, and the flow guiding chamber 11 is disposed above the fan element 3 to guide the airflow generated by the fan element 3 upward.

As shown in FIG. 5, a plurality of air outlets 12 are disposed above the flow guiding chamber 11. In this embodiment, four air outlets 12 are provided, and two air outlets may be provided as shown in FIG. 6, or three are provided as shown in FIG. The outlet is determined by the actual demand. The air outlet 12 is provided with the wind blade 120 (see FIG. 2). The air outlet 120 is adjusted to determine the air outlet 12, so that the fan unit of the present invention can be rotated without rotating the body 1. The generated airflow has the effect of 360 degrees of wind, or can be freely adjusted according to the demand, which is the composition of the case.

1. . . Ontology

10. . . Power room

100. . . Side wall

101, 101a. . . Air flow hole

30. . . Drainage port

11. . . Diversion chamber

12. . . Air outlet

120. . . Outlet blade

2. . . DC inverter motor

3. . . Fan component

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a first embodiment of the present invention.

Figure 2 is a partial cross-sectional view showing a first embodiment of the present invention.

Figure 3 is a cross-sectional view taken along line A-A of Figure 3;

Figure 4 is a cross-sectional view taken along line B-B of Figure 3;

Figure 5 is a side cross-sectional view showing a second embodiment of the present invention.

Figure 6 is a plan view of a third embodiment of the present invention.

Figure 7 is a plan view of a fourth embodiment of the present invention.

1. . . Ontology

10. . . Power room

100. . . Side wall

101. . . Air flow hole

30. . . Drainage port

11. . . Diversion chamber

12. . . Air outlet

120. . . Outlet blade

2. . . DC inverter motor

3. . . Fan component

Claims (7)

The utility model relates to a fan structure, which comprises at least a body, and a power chamber is arranged below, wherein the power chamber is provided with a DC variable frequency motor and a fan element, and the fan element is driven by the DC variable frequency motor to generate an air flow; and the flow chamber is arranged above the power chamber. a chamber, the flow guiding chamber has to guide the airflow generated by the fan element upward; a plurality of air outlets are arranged above the flow guiding chamber, and the air outlet is provided with a wind blade, which can be determined by adjusting the air blade The direction of the tuyere and the wind or not. According to the fan structure of claim 1, wherein the side wall of the power chamber of the main body is provided with a plurality of air flow holes, and after the DC variable frequency motor drives the fan element, the air flow holes are guided through the sides of the fan element. An upward flow of air is generated and reaches the flow guiding chamber through the drain. According to the fan structure of claim 1, wherein the power chamber of the main body is provided with a diversion chamber, and the diversion chamber is located above the drainage port of the fan element to guide the airflow generated by the fan element upward. The fan structure according to the first aspect of the patent application, wherein a plurality of air outlets are arranged above the flow guiding chamber 11, and the air outlets are provided with air blades, and the air outlets of the air outlets may be determined by adjusting the air outlet blades, without Rotating the body can make the airflow generated by the fan have a 360 degree wind effect. The fan structure according to claim 1, wherein the fan element is configured as an axial fan. The fan structure according to claim 1, wherein the fan element is configured as an annular fan. According to the fan structure of claim 1, wherein the air flow hole is disposed under the power chamber of the main body, and after the DC variable frequency motor drives the fan component, the airflow hole is guided by the fan element to generate an upward direction. Airflow to the diversion chamber.