TWI785970B - Cyclone circulation fan - Google Patents

Abstract

The invention discloses a whirlwind circulation fan, which comprises a driving part, a fan main body, and a fan bracket connecting the driving part and the fan main body. The top and the bottom of the main body of the fan respectively form a first annular body and a second annular body with an air inlet in the center, and a plurality of surrounding rings are arranged between the first annular body and the second annular body. The air inlets are annularly distributed and arranged at intervals. There is an air outlet between adjacent fan blades. The opposite two sides of the fan blades are inwardly recessed to form a concave structure, and each side is formed between the front and rear ends. An air guide structure, two adjacent fan blades and the first annular body and the second annular body form an airflow space connected with the air outlet; thereby, the airflow can be more concentrated and the output wind force can be transmitted farther At the same time, the noise generated when the airflow is formed can also be reduced.

Description

Cyclone circulation fan

The present invention relates to a circulation fan, in particular to a cyclone-type circulation fan which is installed on the ceiling of an indoor space and can be used to improve indoor air circulation.

Press, the general fan system concentrates the wind and blows it in one direction. It is a strong wind. If it blows directly on the human body for a long time, it will cause discomfort, headache or cold, and cause harm to the body unconsciously. Moreover, because the airflow output by the general fan is too concentrated, the surrounding air cannot be circulated and convected, and the overall ventilation and circulation effect is insufficient, which cannot effectively increase the comfort of the indoor space.

Based on the above, there are currently many circulating fans on the market. Their main structure is similar to that of ordinary fans. They also have components such as drive parts and fan blades. However, circulating fans can increase air convection to improve indoor space comfort. For example, the conventional circulation fan can be installed on the ceiling of the indoor space, which can suck air from the bottom into the internal airflow space, and the space that enters the airflow space will be discharged to the surroundings, so as to obtain a good air circulation ventilation effect .

However, the fan blades of this conventional circulation fan have a structure that can only guide the airflow in a single direction, so that the airflow space formed by this structure is still slightly insufficient to concentrate the airflow, so that it cannot transmit the output wind force to Further away, moreover, most of the fan blades of this conventional circulation fan are in the shape of a flat plate, which often affects the stability of the conventional circulation fan due to the wind flow during operation, resulting in deflection and noise.

In view of the above-mentioned problems in the prior art, the object of the present invention is to provide a cyclone-type circulation fan which can make the airflow more concentrated and transmit the output wind force to a further distance, so as to improve the indoor airflow circulation effect.

According to the purpose of the present invention, a cyclone type circulation fan is proposed, which includes: a driving part; a fan bracket, which is connected to the driving part; and a fan main body, which is connected to the fan bracket, and the main body of the fan is generally circular shape, the top of which forms a first annular body with a groove in the center, the groove is provided for the fan bracket to be inserted, and the bottom of the fan body forms a second ring with an air inlet in the center Shaped body, between the first annular body and the second annular body is provided with a plurality of fan blades arranged in a ring around the air inlet and arranged at intervals, between two adjacent fan blades It has an air outlet, the opposite two sides of the fan blade are respectively indented inward to form a concave structure, and an air guide structure is formed between a front end and a rear end of each of the side surfaces, the concave structure of the fan blade The concave structure of the fan blade adjacent to the air guide structure and the other adjacent fan blade faces the air guide structure and forms a joint with the first annular body and the second annular body to communicate with the air outlet. airflow space.

According to the above technical features, the space formed in the recess structure of the fan blade is preferably approximately semicircular.

According to the above technical features, the space formed in the recess structure of the fan blade can be roughly triangular in shape.

According to the above technical features, the space formed in the recess structure of the fan blade is preferably roughly trapezoidal.

According to the above-mentioned technical features, the space formed in the recess structure of the fan blade can preferably be polygonal.

According to the above-mentioned technical features, the air guiding structure preferably has a gradually expanding shape from the front end to the rear end.

According to the above-mentioned technical features, the air guiding structure preferably has a tapered shape from the front end to the rear end.

According to the above-mentioned technical features, the air guide structure preferably has a uniform width from the front end to the rear end.

According to the above-mentioned technical features, the cyclone-type circulation fan further includes: a fixed shaft, the driving member is rotatably arranged on the fixed shaft, and the fixed shaft passes through a passage at the bottom of the groove of the first annular body. a hole; and a light part, which is arranged at the center of the lower part of the second annular body and connected to the end of the fixed shaft passing through the through hole.

According to the above technical features, the whirlwind circulation fan further includes a decorative plate, which is arranged under the second annular body and connected to the lamp, and the decorative plate is provided with a plurality of air holes communicating with the air inlet, Wherein, the cross-sectional area of the decorative plate is equal to or larger than the cross-sectional area of the second annular body.

According to the above-mentioned technical features, the cyclone-type circulation fan further includes: a fixed shaft, the driving member is rotatably arranged on the fixed shaft, and the fixed shaft passes through a passage at the bottom of the groove of the first annular body. hole; and a decorative plate, located below the second annular body and connected to the end of the fixed shaft passing through the through hole, and the decorative plate is provided with a plurality of air holes communicating with the air inlet, wherein the The cross-sectional area of the decorative plate is equal to or larger than the cross-sectional area of the second annular body.

According to the above technical features, the first annular body, the second annular body and the plurality of fan blades are preferably integrally formed.

According to the above technical features, the structure of the upper half of the fan blade is connected to the first annular body, the structure of the lower half of the fan blade is connected to the second annular body, and the first annular body and the second annular body Bicyclic bodies can be combined or separated accordingly.

According to the above-mentioned technical feature, a fixed shaft, the driving member is rotatably arranged on the fixed shaft, and the fixed shaft passes through a through hole at the bottom of the groove of the first annular body, and there is a hole around the through hole. The first positioning part, the end of the driving part facing the through hole has a second positioning part which can be combined with the first positioning part.

Based on the above, the airflow space formed by the fan blades of the cyclone-type circulating fan of the present invention can guide the airflow in two directions by the fan blades with concave structure formed on the two opposite sides. When the air enters the airflow space from the bottom of the fan main body, it passes The concave arc shape on both sides of the space can focus the airflow, making the airflow track more stable, and then can output wind force to a longer distance to improve the indoor airflow circulation effect and make the indoor environment more comfortable. In addition, when the airflow impinges on the surface of the recess structure on both sides of the fan blade of the present invention, the sound is easier to disperse or cancel each other due to reflection to any angle, so the volume produced is small, which can reduce the noise generated when the airflow is formed. Noise, so that the cyclone circulation fan has a better noise reduction effect.

For the benefit of the examiner to understand the technical features, content and advantages of the present invention and the effects that can be achieved, the present invention is hereby described in detail in the form of embodiments in conjunction with the accompanying drawings, and the drawings used therein, its The subject matter is only for illustration and auxiliary instructions, and not necessarily the true proportion and precise configuration of the present invention after implementation, so it should not be interpreted based on the proportion and configuration relationship of the attached drawings, and limit the scope of rights of the present invention in actual implementation. Together first describe.

Please refer to Fig. 1, which is the first schematic diagram of the first embodiment of the cyclone circulation fan of the present invention. As shown in the figure, the cyclonic circulation fan 100 of the present invention mainly includes a fan support frame 10 , a driving part 20 and a fan main body 30 , and can further include a fixed shaft 40 and a light part 50 .

Please also refer to Fig. 2 to Fig. 4, which are respectively the second schematic diagram, the third schematic diagram and the fourth schematic diagram of the first embodiment of the cyclonic circulation fan of the present invention. As shown in the figure, the fan bracket 10 is connected to the driving member 20 . The fan main body 30 is connected to the fan bracket 10, wherein the fan main body 30 is preferably roughly circular, and its top forms a first annular body 31 with a groove 311 in the center, the groove 311 The fan main body 30 can be provided, and the bottom of the fan main body 30 forms a second annular body 32 with an air inlet 321 at the center. The driving member 20 is rotatably disposed on the fixed shaft 40 , and the fixed shaft 40 passes through a through hole 312 at the bottom of the groove 311 of the first annular body 31 . The lamp 50 is disposed at the center of the second annular body 32 and connected to the end of the fixing shaft 40 passing through the through hole 312 .

Please also refer to Fig. 5 and Fig. 6, which are respectively the fifth schematic diagram and the A-A line sectional view of the first embodiment of the cyclonic circulation fan of the present invention. As shown in the figure, the fan main body 30 is provided with a plurality of fan blades 33 arranged in a ring around the air inlet 321 and arranged at intervals between the first annular body 31 and the second annular body 32. There is an air outlet 34 between two adjacent fan blades 33; wherein, two opposite sides of the fan blade 33 are respectively indented inward to form a recess structure 331 and a front end 333 of each of the side surfaces and An air guide structure 332 is formed between a rear end 334, the concave structure 331 of the fan blade 33 is connected to the air guide structure 332 and the concave structure 331 of the adjacent fan blade 33 is connected to the air guide structure 332. Facing and forming an airflow space 35 communicated with the air outlet 34 together with the first annular body 31 and the second annular body 32 . In the first embodiment, the surface of the recess structure 331 of the fan blade 33 is arc-shaped, so that a space S formed in the recess structure 331 is approximately semicircular.

In actual use, the cyclone circulating fan 100 can be installed on the ceiling by the fan bracket 10. During operation, the driving member 20 will drive the fan main body 30 to rotate, and the rotation effect of the fan blade 33 can be utilized. The air in the room is sucked into the airflow space 35 from the air inlet 321, and when the air enters the airflow space 35, it will be discharged to the air outlet 34 along the tangential direction of rotation, so that the wind force can blow to the surroundings and achieve large air flow Circular ventilation effect. Among them, the present invention can make the airflow more concentrated by the structure of the above-mentioned two-way concave arc of the fan blade 33 and the corresponding airflow space 35, and transmit the output wind force to a farther distance, so that the indoor space can be obtained. Better circulation and ventilation effect, and at the same time, it can reduce the noise generated when the airflow is formed, so as to meet the needs of the indoor quiet environment.

Please also refer to Fig. 7 and Fig. 8, which are respectively the seventh schematic diagram and the B-B line sectional view of the first embodiment of the cyclonic circulation fan of the present invention. As shown in the figure, in the first embodiment, an air guide structure 332 is formed between a front end 333 and a rear end 334 of each side, and the air guide structure 332 is formed gradually from the front end 333 to the rear end 334. Expanded, but not limited thereto, the air guide structure 332 can also be tapered or equal in width from the front end 333 to the rear end 334 .

In the above, the upper half structure of the fan blade 33 is connected to the first annular body 31, the lower half structure of the fan blade 33 is connected to the second annular body 32, and the first annular body 31 and the second annular body 32 can be movably combined or separated correspondingly. Alternatively, in another embodiment, the first annular body 31 , the second annular body 32 and the plurality of fan blades 33 may be integrally formed.

Please also refer to Fig. 9, which is a schematic cross-sectional view of the second embodiment of the cyclonic circulation fan of the present invention. In the second embodiment, the surface of the concave structure 331 of the fan blade 33 is V-shaped, so that a space S formed in the concave structure 331 is approximately triangular.

Please also refer to Fig. 10, which is a schematic cross-sectional view of the third embodiment of the cyclonic circulation fan of the present invention. In the third embodiment, the surface of the concave structure 331 of the fan blade 33 forms a triangular structure, so that a space S formed in the concave structure 331 is roughly trapezoidal.

Please also refer to Fig. 11, which is a schematic cross-sectional view of the fourth embodiment of the cyclone circulation fan of the present invention. In the fourth embodiment, the surface of the concave structure 331 of the fan blade 33 forms a polygonal structure, so that a space S formed in the concave structure 331 is roughly polygonal.

Please also refer to Fig. 12 and Fig. 13, which are respectively the first schematic diagram and the second schematic diagram of the fifth embodiment of the cyclonic circulation fan of the present invention. In the fifth embodiment, the cyclonic circulation fan 100 of the present invention may further include a decorative plate 60 . The decorative plate 60 can be arranged under the second annular body 32 of the fan main body 30 and connected to the lamp 50, and the decorative plate 60 is provided with a plurality of air holes 61 communicating with the air inlet 321, wherein, The cross-sectional area of the decorative plate 60 is equal to or greater than the cross-sectional area of the second annular body 32, so that the second annular body 32 can be covered by the decorative plate 60, so that the fan main body 30 is fixed when it rotates. The decorative panel 60 that does not move can meet the needs of some users for aesthetic modification.

In the above, in another embodiment, the cyclone-type circulating fan 100 of the present invention is not provided with the lamp 50, and at this time the fixed shaft 40 also passes through the groove 311 of the first annular body 31 A through hole 312 at the bottom, and the decorative plate 60 is arranged under the second annular body 32 and connected to the end of the fixed shaft 40 passing through the through hole 312 .

Please also refer to FIG. 1, the driving member 20 is rotatably arranged on the fixed shaft 40, and the fixed shaft 40 passes through a through hole 312 at the bottom of the groove 311 of the first annular body 31. There is a first positioning member 70 around the through hole 312, and the end of the driving member 20 facing the through hole 312 has a second positioning member 71 that can be assembled with the first positioning member 70. In actual implementation, The positioning effect during installation can be increased through the first positioning member 70 and the second positioning member 71 that can be combined with each other, which can not only prevent mistakes during installation, but also avoid affecting the service life due to incorrect installation positions.

In summary, the cyclone circulation fan of the present invention has the following characteristics:

1. The airflow space formed by the fan blades with concave structure on the two opposite sides can guide the airflow in two directions. When the air enters the airflow space from the bottom of the fan main body, the concave arc shape on both sides of the airflow space can Concentrate the airflow, make the airflow track more stable, and then output the wind force to a longer distance, so as to improve the indoor airflow circulation effect and make the indoor environment more comfortable.

2. When the airflow hits the surface of the concave structure on both sides of the fan blade of the present invention, since it is reflected to any angle, the sound is easier to disperse or cancel each other out, so the volume produced is small, which can reduce the noise generated when the airflow is formed. Noise, so that the cyclone circulation fan has a better noise reduction effect.

3. The airflow space formed by the fan blades with concave structure formed on the opposite two sides can guide the airflow in two directions. When a plurality of cyclone circulation fans are installed in one room, the rotation direction of each cyclone circulation fan can be adjusted to Improve the indoor air circulation effect and make the indoor environment more comfortable.

4. The airflow space formed by the fan blades with concave structure formed on the opposite two sides can guide the air flow in two directions, so as to solve the problems encountered by conventional circulation fans with only one-way fan blades, for example: the conventional circulation When the running direction of the fan is different from that of the single-direction fan blade, the wind force will be offset and it will be difficult to generate air flow, or when a plurality of conventional circulation fans are installed in a room, the resulting air flow will be difficult to circulate effectively.

Looking at the above, it can be seen that the present invention has indeed achieved the effect of the desired enhancement under the breakthrough of the previous technology, and it is not easy for those who are familiar with the art to think about it. Moreover, the present invention has not been disclosed before the application, and its features Progressiveness and practicability have obviously met the requirements for patent application. I file a patent application in accordance with the law. I sincerely request your office to approve this invention patent application to encourage inventions. I am very grateful.

The above-described embodiments are only to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in this art to understand the content of the present invention and implement it accordingly, and should not limit the patent scope of the present invention. That is to say, all equivalent changes or modifications made according to the spirit disclosed in the present invention should still be covered by the patent scope of the present invention.

100: Cyclone circulation fan 10: Fan bracket 20: Driver 30: Fan body 31: first ring body 311: Groove 312: through hole 32: second ring body 321: air inlet 33: fan blade 331: Concave structure 332: wind guide structure 333: front end 334:backend 34: Air outlet 35: airflow space 40: fixed axis 50: Lamp parts 60: Trim 61: stomata 70: The first positioning part 71: The second positioning part S: space

Fig. 1: It is the first schematic diagram of the first embodiment of the cyclone circulation fan of the present invention. Fig. 2: It is the second schematic diagram of the first embodiment of the cyclone circulation fan of the present invention. Fig. 3: is the third schematic diagram of the first embodiment of the cyclone circulation fan of the present invention. Fig. 4: is the fourth schematic diagram of the first embodiment of the cyclone circulation fan of the present invention. Fig. 5: is the fifth schematic diagram of the first embodiment of the cyclone circulation fan of the present invention. Figure 6: It is the A-A line sectional view of Figure 5. Fig. 7: is the sixth schematic diagram of the first embodiment of the cyclone circulation fan of the present invention. Fig. 8: It is the B-B line sectional view of Fig. 7. Fig. 9: is a schematic cross-sectional view of the second embodiment of the cyclone circulation fan of the present invention. Fig. 10 is a schematic cross-sectional view of the third embodiment of the cyclone circulation fan of the present invention. Fig. 11 is a schematic cross-sectional view of the fourth embodiment of the cyclone circulation fan of the present invention. Fig. 12: is the first schematic diagram of the fifth embodiment of the cyclone circulation fan of the present invention. Fig. 13: is the second schematic diagram of the fifth embodiment of the cyclone circulation fan of the present invention.

100: Cyclone circulation fan

10: Fan bracket

20: Driver

30: Fan body

31: first ring body

312: through hole

32: second ring body

321: air inlet

33: fan blade

331: Concave structure

332: side

34: Air outlet

35: airflow space

40: fixed axis

50: Lamp parts

70: The first positioning part

71: The second positioning part

Claims (14)

A cyclone type circulation fan comprising: A fan bracket (10); a driving member (20), which is connected to the fan bracket (10); and A fan main body (30) is connected with the driving member (20). The fan main body (30) is generally circular, and its top forms a first annular body (31) with a groove (311) in the center. ), the groove (311) is provided for the driver (20) to be inserted, and the bottom of the fan main body (30) forms a second annular body (32) with an air inlet (321) at the center. Between the first annular body (31) and the second annular body (32), there are a plurality of fan blades (33) distributed annularly around the air inlet (321) and arranged at intervals. There is an air outlet (34) between the adjacent fan blades (33), and the opposite two sides of the fan blades (33) are respectively indented inward to form a concave structure (331) and each of the side surfaces An air guide structure (332) is formed between a front end (333) and a rear end (334), the recess structure (331) of the fan blade (33), the air guide structure (332) and the other adjacent The concave portion structure (331) of the fan blade (33) is facing to the air guide structure (332) and forms a joint with the first annular body (31) and the second annular body (32). The airflow space (35) that air outlet (34) communicates with. The cyclone circulation fan as described in claim 1, wherein a space (S) formed in the concave structure (331) of the fan blade (33) is roughly semicircular. The cyclone circulation fan as described in claim 1, wherein a space (S) formed in the concave structure (331) of the fan blade (33) is roughly triangular in shape. The cyclone circulation fan as described in claim 1, wherein a space (S) formed in the concave structure (331) of the fan blade (33) is roughly trapezoidal. The cyclone circulation fan as described in claim 1, wherein a space (S) formed in the concave structure (331) of the fan blade (33) is generally polygonal. The cyclone-type circulation fan according to claim 1, wherein the air guide structure (332) is gradually expanding from the front end (333) to the rear end (334). The cyclone type circulation fan according to claim 1, wherein the air guide structure (332) is tapered from the front end (333) to the rear end (334). The cyclone circulation fan as described in claim 1, wherein the air guide structure (332) is in a shape of equal width from the front end (333) to the rear end (334). The cyclone-type circulation fan as described in claim 1, it further comprises: a fixed shaft (40), the driving member (20) is rotatably arranged on the fixed shaft (40), and the fixed shaft (40) is worn A through hole (312) passing through the bottom of the groove (311) of the first annular body (31); place and connect the end of the fixed shaft (40) passing through the through hole (312). The whirlwind circulation fan as described in Claim 9, further comprising a decorative plate (60), which is arranged under the second annular body (32) and connected to the lamp (50), and the decorative plate ( 60) is provided with a plurality of air holes (61) communicated with the air inlet (321), wherein the cross-sectional area of the decorative plate (60) is equal to or greater than the cross-sectional area of the second annular body (32) . The cyclone-type circulation fan as described in claim 1, it further comprises: a fixed shaft (40), the driving member (20) is rotatably arranged on the fixed shaft (40), and the fixed shaft (40) is worn A through hole (312) at the bottom of the groove (311) passing through the first annular body (31); and a decorative plate (60), which is located under the second annular body (32) and connects the The fixed shaft (40) passes through one end of the through hole (312), and the decorative plate (60) is provided with a plurality of air holes (61) communicated with the air inlet (321), wherein the decorative plate (60) The cross-sectional area is equal to or larger than the cross-sectional area of the second annular body (32). The cyclone type circulation fan according to claim 1, wherein the first annular body (31), the second annular body (32) and the plurality of fan blades (33) are integrally formed structures. The cyclone-type circulation fan as described in claim 1, wherein the structure of the upper half of the fan blade (33) is connected to the first annular body (31), and the structure of the lower half of the fan blade (33) is connected Regarding the second annular body (32), the first annular body (31) and the second annular body (32) can be combined or separated correspondingly. The cyclone-type circulation fan as described in claim 1, it further comprises: a fixed shaft (40), the driving member (20) is rotatably arranged on the fixed shaft (40), and the fixed shaft (40) is worn Through a through hole (312) at the bottom of the groove (311) of the first annular body (31), there is a first positioning member (70) around the through hole (312), and the driving member (20) faces One end of the through hole (312) has a second positioning piece (71) which can be combined with the first positioning piece (70).

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