TWI532924B - Fan - Google Patents

Description

fan

The present invention relates to a fan structure for installation in an indoor space and for enhancing air circulation.

The conventional fan structure can be referred to the TW M373411 patent, which is mainly provided with an air outlet at the center of the seat body, and a plurality of equally divided arc-shaped blocking pieces are arranged around the air outlet, and the head and the tail of each arc-shaped blocking piece are left at the junction. There is a wind inlet gap, and a plurality of different types of air inlets are arranged around the seat body. The center of the air outlet is connected with a reinforcing rib to connect the arc-shaped blocking piece with a motor seat. As a motor, the fan has a fan at the inner end of the rotating shaft. The outer end of the rotating shaft is provided with a surface network capable of adjusting the wind direction; the fan is activated, the air is sucked by the air inlet around the seat body, and some air is first discharged over the arc-shaped blocking piece and then discharged from the air outlet.

However, its design can only make the airflow blow down, the airflow distribution is too concentrated, the wind speed below it is too high and cold, but the surrounding gas can not be circulated and convected, the overall ventilation cycle effect is still insufficient, and the indoor can not be effectively increased. The comfort of the space is the goal of the industry to provide a fan structure with better circulation and better ventilation.

In view of the above problems, it is a primary object of the present invention to provide a fan structure which is more effective in circulating ventilation.

To achieve the above object, the present invention provides a fan including a driving member for driving rotation, a fan bracket, a main fan and a main cover.

The fan bracket is coupled to the driving member, the fan bracket has a first connecting portion and a second connecting portion; the main fan is disposed at the first connecting portion, the main fan has a first side opposite to a second surface, the first surface is convexly provided with a plurality of blades, each of the blades extends radially around the center of the main fan; the main cover is disposed at the second connecting portion, and the main cover has a relative a third surface and a fourth surface, the third surface faces the first surface and an air flow space is formed therebetween, and the main cover is recessed from the third surface to the fourth surface by at least one first The air guiding hood has a first passage extending through the third surface and the fourth surface, and the first opening has a first opening and a second opening, respectively, the first opening Facing the first face, the second opening faces the direction of rotation of the main cover.

Thereby, when the driving member drives the main fan to operate, air can be sucked from the first air guiding hood into the air flow space, and the guiding effect of the first air guiding hood is taken according to the situation, and the air enters the air flow space and then is discharged to the surroundings. Better air circulation ventilation effect.

1‧‧‧ Drives

2‧‧‧Fan support

20‧‧‧ accommodating space

21‧‧‧First connection

22‧‧‧Second connection

3‧‧‧main fan

30‧‧‧through hole

31‧‧‧ first side

311‧‧‧ fan leaves

32‧‧‧ second side

4‧‧‧Main cover

43‧‧‧ third side

44‧‧‧ fourth side

45‧‧‧First air duct

46‧‧‧Second air hood

461‧‧‧ third opening

462‧‧‧fourth opening

47‧‧‧Opening

5‧‧‧Fixed shaft

6‧‧‧Plate

61‧‧‧ stomata

7‧‧‧Upper cover

81‧‧‧Fixed parts

82‧‧‧Fixed parts

83‧‧‧Fixed parts

84‧‧‧Fixed parts

9‧‧‧Sub Fan

91‧‧‧ Ring body

451‧‧‧ first opening

452‧‧‧ second opening

92‧‧‧ blades

Figure 1 is a perspective view of the present invention.

Figure 2 is an exploded view of the present invention.

Figure 3 is a cross-sectional view of the present invention.

Figure 4 is a schematic view showing the state of use of the present invention.

Figure 5 is an exploded view of a second embodiment of the present invention.

Figure 6 is a cross-sectional view showing a second embodiment of the present invention.

In the following, the structural features of the present invention and the intended effects thereof will be described in the preferred embodiments, and are not intended to limit the scope of the invention as claimed.

1 to 3, the fan of the present invention comprises a driving member 1, a fan bracket 2, a main fan 3 and a main cover 4.

The driving member 1 is a structure for driving rotation, and the driving member 1 of the embodiment is an electric motor.

The fan bracket 2 is assembled with the driving member 1. The fan bracket 2 of the embodiment has a hollow housing structure, and the fan bracket 2 has a receiving space 20 for receiving the driving member 1. The fan Each of the two ends of the bracket 2 has a first connecting portion 21 and a second connecting portion 22, and more specifically, the fan bracket 2 has a cylindrical shape, and the first connecting portion 21 is from the fan bracket 2 The second connecting portion 22 extends inwardly from the other end of the fan bracket 2 in a ring shape, and the first connecting portion 21 and the second connecting portion 22 are provided with a plurality of locks. hole.

The main fan 3 is disposed at the first connecting portion 21, and the main fan 3 is provided with a through hole 30 at the center thereof. The fan bracket 2 blocks the through hole 30 (the first connecting portion 21 surrounds the edge of the through hole 30) The accommodating space 20 is connected to the through hole 30, and the driving member 1 can enter and exit the accommodating space 20 through the through hole 30. The main fan 3 has a first surface 31 and a second surface 32. The first surface 31 has a plurality of blades 311. The blades 311 extend radially around the center of the main fan 3, And each of the blades 311 is curved in an arc shape (in other embodiments, it may be linear).

The main cover 4 is disposed on the second connecting portion 22, and the main cover 4 has a third surface 43 and a fourth surface 44 opposite to each other. The third surface 43 faces the first surface 31 and forms therebetween. There is an air flow space (the two are parallel to each other), and the main cover 4 is from the third surface 43 to the fourth surface 44 a plurality of first air guiding hoods 45 and a plurality of second air guiding hoods 46 are defined, the first air guiding hood 45 has a first passage extending through the third surface 43 and the fourth surface 44, the first passage Each of the two ends has a first opening 451 facing the first surface 31 and a second opening 452 facing the rotation direction of the main cover 4 (the tangent of the rotation of the main cover 4) The second air guiding cover 46 has a second passage extending through the third surface 43 and the fourth surface 44. The second end of the second passage has a third opening 461 and a fourth opening 462, respectively. The third opening 461 faces the first surface 31, and the fourth opening 462 faces the rotation direction of the main cover 4 (the tangential direction toward the rotation of the main cover 4); the first air guiding cover 45 and the second air guiding cover The shape of the 46 is the same, the cross-sectional shape is generally ㄇ-shaped (in other embodiments may be arc-shaped), the second air hood 46 is larger than the first air hood 45, and each of the first air hood 45 and each The two air guiding hoods 46 are all arranged in an annular shape, and the first air guiding hood 45 is located at an outer side opposite to the second air guiding hood 46.

In addition, the embodiment further includes a fixed shaft 5, a fascia 6 and an upper cover 7. The driving member 1 is rotatably disposed on the fixed shaft 5 (with bearings disposed therebetween), and the fixed shaft 5 passes through The main fan 3, the fan bracket 2 and the main cover 4 are disposed at one end of the fixed shaft 5 and block the fourth surface 44 of the main cover 4. The plaque 6 is provided with a plurality of air holes. 61, wherein the plaque 6 is further provided with an illumination or ozone sterilizing device or the like, and the upper cover 7 is disposed on the second surface 32 of the main fan 3.

The main fan 3, the fan bracket 2 and the main cover 4 are disposed between the upper cover 7 and the fascia, the main cover 4, the second connecting portion 21 of the fan bracket 2, and the The driving member 1 is fixed by a plurality of fixing members 81, and the upper cover 7, the main fan 3 and the first connecting portion 21 of the fan bracket 2 are fixed by a plurality of fixing members 82, and the respective blades 311 are fixed. One end is flat and in flat contact with the third surface 43, and each of the blades 311 is fixed to the main cover 4 by a plurality of fixing members 83.

In actual use, the fixed shaft 5 is mounted on the ceiling. During the operation and use, the driving member 1 simultaneously drives the main fan 3 and the main cover 4 to rotate, and the rotation effect of the blade 311 is used to The air is sucked from the first air guiding hood 45 and the second air guiding hood 46 (blocked by the first surface 31 to keep the air in the air flow space), and the guiding of the first air guiding hood 45 and the second air guiding hood 46 is utilized. The effect is that when the air enters the airflow space, it will be discharged to the surroundings along the tangential direction of the rotation (as shown in FIG. 3 and FIG. 4), and the circulation effect of the large air circulation is achieved.

Therefore, the present invention is characterized in that air can be quickly taken out from the first air hood 45 and the second air hood 46, and the indoor space can be more circulated and ventilated; therefore, the gas of the present invention The flow is smoother and more efficient, the flow of gas is fairly average and can cover indoor space, and the problem of excessive concentration of airflow in conventional fans is improved.

Furthermore, in this embodiment, a fan 9 is further included, the sub fan 9 is disposed on the fan bracket 2, and the sub fan 9 is located at the center of each of the blades 311. The sub fan 9 has a ring body 91 and a plurality of rings a blade 92 is disposed on the outer surface of the ring body 91 and extends around the ring body 91. The ring body 91 is sleeved on the fan bracket 2; the third opening 461 of each second air guiding cover 46 faces each blade 92 and each blade 311. Between the two (1), the sub-fan 9 is fixed to the fan holder 2 by a plurality of fixing members 84, and each of the fixing members 84 abuts against the driving member 1; thereby, when the driving member 1 is running The auxiliary fan 9 is also driven to rotate, and the secondary fan 9 is used to increase the effect of the gas flowing laterally, thereby improving the ventilation efficiency, so that the gas can be quickly discharged to the surroundings after entering the airflow space.

It is to be noted that the driving member 1 can enter and exit the accommodating space 20 through the through hole 30, and also indicates that when the driving member 1 is assembled, the driving member 1 can be directly inserted into the accommodating space from the through hole 30. When the 20 is fixed and disassembled, the driving member can also be taken out from the through hole 30, which is convenient for disassembly and assembly.

Further, the present invention is in the second embodiment (with reference to FIG. 5 and FIG. 6), the main The cover 4 is provided with an opening 47 through which the blade 92 of the sub-fan 9 extends between the main cover 4 and the fascia 6; thereby, the opening 47 can increase the main cover 4 The hollowed out area increases the amount of intake air, and the increased length of the blades 92 also helps to blow the airflow around to obtain a circulating ventilation effect.

Summarizing the above, the fan of the present invention not only has a structural innovation, but also has a progressive effect, conforms to the relevant provisions of the Patent Law, and filed a patent application according to law, so that the Office of the Office can grant a patent as soon as possible.

1‧‧‧ Drives

2‧‧‧Fan support

21‧‧‧First connection

22‧‧‧Second connection

3‧‧‧main fan

30‧‧‧through hole

31‧‧‧ first side

311‧‧‧ fan leaves

32‧‧‧ second side

4‧‧‧Main cover

43‧‧‧ third side

44‧‧‧ fourth side

45‧‧‧First air duct

452‧‧‧ second opening

46‧‧‧Second air hood

462‧‧‧fourth opening

5‧‧‧Fixed shaft

6‧‧‧Plate

61‧‧‧ stomata

7‧‧‧Upper cover

9‧‧‧Sub Fan

91‧‧‧ Ring body

92‧‧‧ blades

Claims (9)

A fan includes: a driving member for driving rotation; a fan bracket coupled to the driving member, the fan bracket having a first connecting portion and a second connecting portion; a main fan disposed at the first a connecting portion, the main fan has a first surface and a second surface opposite to each other, the first surface is convexly provided with a plurality of blades, and each of the blades extends radially around the center of the main fan, and the main fan is A through hole is defined in the center, the fan bracket blocks the through hole and has a receiving space for receiving the driving member, and the receiving space is in communication with the through hole, and the driving member can enter and exit through the through hole The main cover is disposed on the second connecting portion, the main cover has a third surface and a fourth surface opposite to the first surface, and a first surface is formed therebetween The air flow space, the main cover is recessed from the third surface to the fourth surface with at least one first air hood, the first air hood having a first passage extending through the third surface and the fourth surface Each of the two ends of the first channel has a first opening and a second opening, the first opening facing the first , The second rotational direction toward the opening of the primary closure. The fan of claim 1, further comprising a fan, the sub fan is disposed on the fan bracket, and the sub fan is located at a center of each fan blade. The fan of claim 2, wherein the auxiliary fan has a ring body and a plurality of blades disposed on an outer surface of the ring, the ring body being sleeved on the fan bracket. The fan of claim 2, wherein the sub-fan is fixed to the fan holder by a plurality of fixing members, and each fixing member abuts against the driving member. The fan of claim 3, wherein the main cover is provided with an opening through which the blade of the sub-fan extends between the main cover and the fascia. The fan of claim 1, wherein the main cover has at least one second air hood from the third surface to the fourth surface, the second air hood having a third surface and the third air hood a second channel of the fourth surface, the two ends of the second channel respectively have a third opening and a fourth opening, the third opening faces the first surface, and the fourth opening faces the rotation direction of the main cover, The first air hood is located at an outer side opposite to the second air hood. The fan of claim 6, wherein the main cover is provided with a plurality of the first air guiding cover and a plurality of the second air guiding cover, and each of the first air guiding cover and each of the second air guiding covers are annularly surrounding. arrangement. The fan of claim 6, further comprising a fan disposed on the fan bracket and located between the first surface and the third surface, and the secondary fan is located at a center of each blade The auxiliary fan has a plurality of blades extending to the periphery, and a third opening of each of the second air hoods faces between the blades and each of the blades. The fan of claim 1, further comprising a fixed shaft and a fascia, the driving member being rotatably disposed on the fixed shaft, the fixed shaft passing through the main fan, the fan bracket and the main cover, The plaque is disposed at one end of the fixed shaft and blocks the main cover, and the plaque is provided with a plurality of air holes.