TW202024484A - Air circulation device characterized by using an air outlet to change its area and direction by a relative movement of the cover body and the air deflector disk, so as to adjust the air discharging pressure and the air discharging direction - Google Patents

Abstract

Disclosed is an air circulation device including: a supporting frame fixed at a ceiling and fixedly provided with a fan motor; a fan connected to the fan motor; an air deflector disk disposed below the fan and provided with a curved air deflecting surface facing to the fan; and a cover body used to cover the fan and the air deflector disk. A bottom end of the cover body is provided with a skirt portion extending to a periphery of the air deflector disk. An air deflecting space and an annular air outlet are formed between the skirt portion and the air deflecting surface. Wherein, an air outlet can change its area and direction by a relative movement of the cover body and the air deflector disk, so as to adjust an air discharging pressure and an air discharging direction.

Description

Air circulation device

The present invention is related to an air circulation device, especially an air circulation device that can change the blowing pressure and direction.

A type of electric fan that hangs down from the ceiling is called a ceiling fan. A common ceiling fan is a structure type in which the fan blades are exposed to the outside. When it is driven to rotate, the airflow can flow to generate wind. However, the fan blades exposed to the outside are likely to accumulate dust, and the dust will be blown off when rotating and affect the environment.

Therefore, there is a ceiling fan that hides the fan blades in the structure. As disclosed in China Invention Patent Publication No. I509159, the fan blades are covered with a shell, and the shell is provided with a wind-guiding space inside the shell. The periphery of the body is provided with an air outlet, according to which when the fan blade rotates, the airflow flows along the air guiding space and blows out from the air outlet. However, in the above-mentioned conventional structure, the air outlet is fixedly arranged, and its area and outlet direction cannot be adjusted and changed, so that the airflow can only be output at a fixed air volume and direction, and cannot be adjusted according to actual usage requirements.

In view of this, how to improve the above-mentioned problem is the primary problem to be solved by the present invention.

The main purpose of the present invention is to provide an air circulation device, which can change the area and direction of the air outlet, thereby adjusting the pressure and direction of the output air flow, and has the effects of increasing the blowing range and convenient use.

To achieve the foregoing objective, the present invention provides an air circulation device, which includes: 　　 a support frame, which is fixed to the ceiling, and a fan motor is fixed on the support frame; 　　 a fan connected to the fan motor; 　　 an air guide The plate is arranged under the fan; the air guide plate has an arc-shaped air guiding surface facing the fan; 　　 a cover which is arranged outside the fan and the air guide plate; the bottom end of the cover There is a skirt that extends to the periphery of the air guide plate, and an air guide space and a ring-shaped air outlet are formed between the skirt and the air guide surface; the air outlet can pass through the cover and the guide The relative movement of the wind disc changes its area and direction, thereby adjusting the air volume and direction.

In one embodiment, the support frame is further fixed with a control motor, which extends a drive shaft with a threaded section, the cover is provided with a transverse rib, the rib is provided with a screw hole, and the drive shaft and the screw hole The screw connection allows the cover to be displaced relative to the air guide plate when the control motor drives the drive shaft to rotate.

In one embodiment, a plurality of guide blocks are arranged on the air guide surface of the air guide plate, and each guide block extends in an arc shape from the center of the air guide surface to the outside.

In one embodiment, the cover is provided with a plurality of air suction ports arranged at intervals in a fence shape.

In one embodiment, the air guide plate is provided with a lamp.

It is not difficult to gain an in-depth understanding of the above-mentioned objects and advantages of the present invention from the detailed description of the selected embodiments and the accompanying drawings.

Please refer to Figures 1 and 2. The air circulation device provided by the present invention includes a support frame 1, which is a stable structure formed by a plurality of rods and plates for fixing a fan motor 2. The top of the support frame 1 has a top plate 11, which can be fixed on the ceiling 7 by fixing elements such as screws, so that the support frame 1 can be fixedly installed.

On the other hand, the fan motor 2 extends downwards with a drive shaft 21 and is connected to a fan 3, thereby driving the fan 3 to rotate and generate airflow. After the above-mentioned transmission shaft 21 passes through the fan 3, it is further connected to an air guide plate 4 downwards, wherein the air guide plate 4 has an air guide surface 41 facing the fan 3, which forms an arc and has a larger than The area of 3. In this embodiment, the bottom of the air guide plate 4 can be further provided with a lamp 42 to increase functionality and decoration.

The fan 3 and the air guide plate 4 are further provided with a cover body 5, the upper end of which is provided with a straight cylindrical part 51 covering the support frame 1 and the fan 3, which is provided with a plurality of fence-like suction openings 511 arranged at intervals. , The lower end has an expanded skirt 52, the skirt 52 extends to the periphery of the air guide plate 4 and covers the top of the air guide plate 4. An air guiding space 43 is formed between the skirt 52 and the air guiding surface 41, and the gap between the periphery of the skirt 52 and the periphery of the air guiding plate 4 forms an annular air outlet 44. When the fan 3 rotates, the swirling airflow enters the cover 5 from the air suction port 511, passes through the fan 3 and is blocked downward by the air guide plate 4, and moves to the side in the air guide space 43. It flows along the air guide surface 41, and then discharges from the air outlet 44.

In this embodiment, the air guiding surface 41 of the air guiding plate 4 is provided with a plurality of guiding blocks 45, and each guiding block 45 extends outwardly from the center of the air guiding surface 41 in an arc shape. Accordingly, the flow of the airflow on the air guiding surface 41 will form a rotating cyclone based on the shape of each guiding block 45, which can increase the wind speed output from the air outlet 44.

Furthermore, the support frame 1 is further fixed with a control motor 6 above the fan motor 2, which is provided with an upwardly extending drive shaft 61, wherein the drive shaft 61 has a threaded section 62; on the other hand, the cover The straight cylindrical portion 51 of the body 5 is provided with a transverse rib 512, the rib 512 is provided with a screw hole 513, and the drive shaft 61 is screwed into the screw hole 513.

In the above structure, since the control motor 6, the fan motor 2 and the support frame 1 are fixed as one body and fixed to the ceiling 7, when the control motor 6 drives the drive shaft 61 to rotate, the ribs 512 will produce relative up and down displacement, and then synchronously drive the cover 5 to move. The cover 5 is moved relative to the air guide plate 4, so that the position of the skirt 52 changes the area and direction of the air outlet 44; in detail, as shown in Figure 2, the skirt 52 is away from the guide When the wind plate 4 is close, the area of the air outlet 44 is smaller, and the direction of the wind is downward, and when the skirt 52 is far away from the air guide plate 4, as shown in Figure 3, the air outlet 44 The area becomes larger, and the direction of the wind changes to the side. Accordingly, the cover 5 can be moved by operating the control motor 6 to change the area and direction of the air outlet 44, thereby adjusting the air volume and direction, and increasing the blowing range.

However, the disclosure of the above embodiments is only used to illustrate the present invention, not to limit the present invention, so any replacement of equivalent elements should still belong to the scope of the present invention.

In summary, those who are familiar with this technique can understand that this invention can clearly achieve the aforementioned purpose, and that it has actually complied with the provisions of the Patent Law, so it can apply according to law.

1: Support frame １１: Top plate 2: Fan motor 21: Drive shaft 3: Fan 4: Air guide plate 41: Air guide surface 42: Lamps 43: Wind guide space 44: Air outlet 45: Guide block 5: Cover 51: Straight section 511: Suction port 512: Rib 513: Screw hole 52: Skirt 6: Control the motor 61: Drive shaft 62: Thread section 7: Ceiling

Figure 1 is a three-dimensional exploded schematic view of the present invention; Figure 2 is a schematic cross-sectional view of the present invention; Figure 3 is a schematic view of the use state of the present invention.

1: Support frame

11: Top plate

2: Fan motor

21: drive shaft

3: fan

4: air guide plate

41: Wind guide surface

42: lamps

43: Wind guide space

44: air outlet

5: Cover

51: Straight section

511: suction port

512: rib

513: screw hole

52: Skirt

6: Control the motor

61: drive shaft

7: Ceiling

Claims (5)

An air circulation device comprising: 　　 a support frame, which is fixed to the ceiling, and a fan motor is fixed on the support frame; 　　 a fan, which is connected to the fan motor; 　　 an air guide plate, which is arranged under the fan ; The air guide plate has an arc-shaped air guide surface facing the fan; 　　 a cover, which is arranged outside the fan and the air guide plate; the bottom end of the cover has an extension extending to the air guide plate The skirt of the peripheral edge of the skirt, an air guiding space and an annular air outlet are formed between the skirt and the air guiding surface; the air outlet can change its area by the relative movement of the cover and the air guiding plate And direction, and then adjust the air volume and direction. The air circulation device according to claim 1, wherein the support frame is further fixed with a control motor, which protrudes a drive shaft with a threaded section, the cover body is provided with a transverse rib, and the rib is provided with a screw hole, and The drive shaft is screwed with the screw hole, so that when the control motor drives the drive shaft to rotate, the cover body is displaced relative to the air guide plate. The air circulation device according to claim 1, wherein a plurality of guide blocks are provided on the air guide surface of the air guide plate, and each guide block extends in an arc shape outward from the center of the air guide surface. The air circulation device according to claim 1, wherein the cover is provided with a plurality of suction ports arranged at intervals in a fence shape. The air circulation device according to claim 1, wherein the air guide plate is provided with a lamp.

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