KR102320052B1 - Ceiling fan equipped with airflow convergence guide elements and filter elements - Google Patents

Abstract

The sealing fan according to the present invention includes a filter unit and an air flow convergence inducing member, so that the air flow introduced into the air inlet of the air flow convergence inducing member of the sealing fan is induced to converge within a rotation radius and then flows into the filter unit by the filter unit. It can maximize the effect of removing fine dust and airborne bacteria.
The use of the sealing fan according to the present invention effectively removes fine dust and airborne bacteria in the indoor air, so that it is possible to quickly and effectively improve indoor air quality.

Description

Ceiling fan equipped with airflow convergence guide elements and filter elements

The present invention relates to a sealing fan provided with an airflow convergence inducing member and a filter unit, and more particularly, by providing an airflow convergence inducing member and a filter unit on rotary blades constituting the sealing fan, the sealing fan blade rotates indoors A sealing that generates an airflow from the air, and the airflow is induced to converge within the rotational radius of the rotary blade by the airflow convergence inducing member and flows into the filter unit of the following rotary blade to effectively remove fine dust and airborne bacteria in the room It's about the fans.

Fine dust from various sources indoors and outdoors, including automobiles, power plants, wood burning, industrial processes, diesel vehicles, cigarette smoke, cooking smoke, spray products, etc. ) and PM2.5 (ultrafine dust) with a particle diameter of 2.5㎛ or less that can be deposited in the alveoli.

There is growing concern about the dangers caused by high-concentration fine dust in the air that continues every day. The World Health Organization (WHO) defines fine dust as a carcinogen (Group 1 carcinogen), and in a follow-up study of 1.2 million Americans, the increase in PM10 by 10㎍/㎥ increased the overall mortality rate by 4%, and the death rate from cardiovascular disease was 6 %, and cancer deaths were reported to increase by 8%. Also, the Korea Environmental Policy Evaluation Institute reported that when PM2.5 increased by 10㎍/㎥, the mortality rate increased by 0.95%, and the rate of increase in the number of patients hospitalized for cardiovascular and respiratory diseases was 2.0% and 1.1%, respectively.

In addition to fine dust, airborne bacteria from food waste, humidifiers, air purifiers, and pets in the living environment are known to cause respiratory and allergic diseases. Recognizing the risk of airborne bacteria, the indoor air quality maintenance standard of the Enforcement Regulations of the Indoor Air Quality Management Act sets the total airborne bacteria standard value to 800 CFU/m ³ or less for multi-use facilities such as medical institutions, daycare centers and elderly care facilities of a certain size or more. are doing

In order to reduce the health risks caused by fine dust and airborne bacteria in the living environment, it has led to R&D and increased demand for air purifiers. In order to do so, there is a problem in that the air purifier takes up space because it must be arranged in the center of the compartment. In addition, there is a problem that a high-performance air purifier for offsetting the above problems is expensive.

Meanwhile, a ceiling-mounted ceiling fan has been conventionally used for indoor air circulation and cooling/heating purposes. However, since only indirect removal through indoor air ventilation is possible only by using the ceiling-mounted ceiling fan alone, it is impossible to directly remove fine dust and airborne bacteria for rapid and effective air quality improvement.

In accordance with the above circumstances, the present invention is provided with a filter unit capable of collecting suspended matter in the air on a rotating blade of a ceiling fan attached to the ceiling, and induces airflow to converge within the rotational radius of the rotating blade of the trailing rotor. An object of the present invention is to present a sealing fan with an improved effect of removing fine dust and airborne bacteria in the room by having an airflow convergence inducing member that allows it to flow into the filter unit.

Next, the prior art existing in the field to which the technology of the present invention pertains will be briefly described, and then the technical matters that the present invention intends to achieve differently compared to the prior art will be described.

U.S. Patent Application Laid-Open No. 2018/0328377 (published on November 15, 2018) relates to a fan blade having a plurality of narrow passages formed therein and a sealing fan having the fan blade, and more specifically, the fan blade has an upper surface A plurality of passages are formed by the wall formed between and the lower surface, and the wall is made of a heat absorbing material to take heat from the air entering the fan blade and transfer it to the upper and lower surfaces, thereby exerting a cooling effect. technology has been described.

In addition, Japanese Patent Publication No. 5082508 (announced on November 28, 2012) relates to a ceiling sealing fan including a main blade plate provided with a pin, and more specifically, a pin provided on the main blade plate of the sealing fan. is a member for changing the airflow flowing toward the lower surface of the main blade plate in the radial outward flow direction, and describes a ceiling sealing fan that provides a wide range of blowing effects.

The sealing fans described in the prior art document basically have an air circulation effect, and a technology for imparting a cooling effect to the airflow passing through the inside of the rotary blade or implementing an airflow diffusion effect to the outside of the rotation radius is described. The development of technology for a sealing fan that can effectively directly remove fine dust and airborne bacteria is still insufficient.

US Patent Publication No. 2018/0328377 (published on November 15, 2018) Japanese Patent Publication No. 5082508 (Notice on November 28, 2012)

The sealing fan of the present invention has been devised to solve the above problems. The sealing fan provided with a filter unit and an airflow convergence inducing member generates airflow by rotation of a rotary blade to circulate indoor air as well as a filter The airflow introduced into the air inlet is guided so that the flow direction converges to the inside of the rotation radius and flows into the filter part of the rotary blade, thereby removing fine dust and airborne bacteria contained in the airflow, and thus fine dust and airborne bacteria compared to the conventional sealing fan. It is intended to provide a technology related to a sealing fan that maximizes the removal efficiency of

In order to solve the above problems, the present invention provides a hub located in the center; a rotary blade connected to the hub and generating an airflow through rotation; an airflow convergence inducing member formed on a lower surface or an upper surface of the rotary blade; and a filter unit provided on the rotary blade, wherein the airflow generated through the rotation of the rotary blade is induced to converge within the rotation radius of the sealing fan rotary blade by the airflow convergence inducing member, thereby preventing the inflow into the filter unit. It provides a sealing fan provided with an air flow convergence inducing member and a filter, characterized in that it is easy.

In one embodiment of the present invention, the air flow convergence inducing member may be formed on the whole or a part of the long side length of the rotary blade.

In one embodiment of the present invention, the airflow convergence inducing member formed on the lower surface or upper surface of the rotary blade may be formed to have an angle (α) range of 10 to 80 degrees with a tangent line of a concentric circle centered on the hub.

In an embodiment of the present invention, the filter unit includes a filter case, and a filter air inlet and a filter air outlet are formed on one side and the other side of the filter case, respectively, fine dust and floating in the airflow passing through the filter air inlet A filter capable of collecting bacteria may be provided between the filter air inlet and the filter air outlet, and a filter cover may be formed at the filter air outlet.

In one embodiment of the present invention, the filter is a filter capable of removing fine dust and airborne bacteria generated in an indoor living environment, and the same or different filters can be installed and replaced.

In one embodiment of the present invention, the rotary blade may be formed with an airflow convergence auxiliary blade on the edge of one side spaced apart from the hub.

In one embodiment of the present invention, the hub may include a wireless signal unit generating a sound generating signal by sensing a radio signal on an inner side; and a sound generating unit generating a sound by detecting the sound generating signal at an outer side. can

In one embodiment of the present invention, the hub further comprises a light source generator for generating a light source by sensing the sound generated from the sound generator, wherein the light source corresponds to the amplitude and frequency of the sound generated by the sound generator light source can be generated.

The sealing fan according to the present invention includes a filter unit and an air flow convergence inducing member, so that the air flow introduced into the air inlet of the air flow convergence inducing member of the sealing fan is induced to converge inward instead of outside the rotation radius, and then flows into the filter unit. It is possible to maximize the effect of removing fine dust and airborne bacteria by the filter part.

The use of the sealing fan according to the present invention effectively removes fine dust and airborne bacteria in the indoor air, so that it is possible to quickly and effectively improve indoor air quality.

1(a) and 1(b) are views illustrating a sealing fan provided with an airflow convergence inducing member 130 and a filter unit 140 according to an embodiment of the present invention, and a configuration thereof.
Figure 2 (a) is an exploded perspective view for explaining the rotary blade 120, the air flow convergence inducing member 130 and the filter unit 140 formed on the lower surface of the rotary blade as an example of the present invention, Figure 2 (b) is a perspective view of the combined form.
3 is a view for explaining the airflow convergence inducing effect exerted by the ceiling fan according to the present invention.
4 is a view illustrating examples in which the airflow convergence inducing member 130 is formed on the rotary blade 120 .
5 is (a) a plan view of the sealing fan 100 of the present invention viewed from above in order to explain the angle α of the airflow convergence inducing member 130 formed on the rotary blade 120, (b) on the rotary blade 120 It is a view for explaining the angle (β) of the air flow convergence inducing member 130 formed.
6 is (a) an example in which the air flow convergence auxiliary blade 150 is formed at the short edge of the rotary blade 120 and (b) a view showing the airflow convergence induction effect by the air flow convergence auxiliary blade 150. .
7 is a view showing the results of the evaluation of the fine dust reduction capability of Experimental Example 1 according to the presence or absence of the airflow convergence inducing member 130 of the ceiling fan according to an embodiment of the present invention.

Hereinafter, a sealing fan equipped with an airflow convergence inducing member and a filter unit will be described in detail so that those of ordinary skill in the art can easily practice the present invention with reference to the accompanying drawings.

In each drawing of the present invention, the size or dimensions of the structures are enlarged or reduced than the actual size for clarity of the present invention, and well-known components are omitted to reveal the characteristic configuration, so it is not limited to the drawings. .

In the detailed description of the principle of the preferred embodiment of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, since the configuration shown in the embodiments and drawings described in this specification is only the most preferred embodiment of the present invention and does not represent all the technical spirit of the present invention, various It should be understood that there may be equivalents and variations.

In the sealing fan, the present invention not only circulates indoor air by generating airflow by rotation, but also induces the flow direction of the airflow flowing into the air inlet of the airflow convergence inducing member to converge to the inside of the rotational radius and then to the filter part of the trailing rotor blade. The present invention relates to a sealing fan in which the removal efficiency of fine dust and airborne bacteria is maximized compared to a conventional sealing fan by providing a filter unit and an airflow convergence inducing member to allow the inflow and adsorption and removal of fine dust contained in the airflow.

Hereinafter, the structure of the sealing fan provided with the airflow convergence inducing member and the filter part of the present invention will be described in detail with reference to the drawings.

1(a) and 1(b) are diagrams for explaining a sealing fan provided with an airflow convergence inducing member and a filter unit and a configuration thereof according to an embodiment of the present invention.

1(a) and 1(b), the sealing fan 100 provided with an airflow convergence inducing member and a filter unit includes a hub 110 located in the center; a rotary blade (120) connected to the hub and generating an airflow through rotation; an airflow convergence inducing member 130 formed on a lower surface or an upper surface of the rotary blade; and a filter unit 140 provided on the rotary blade.

The hub 110 may be provided with a known motor (not shown) operated by power, and is located in the middle of the sealing fan according to the present invention. A plurality of rotary blades 120 are connected to the hub 110 , and the rotary blade 120 may be rotated by a motor provided in the hub.

The filter unit 140 includes a filter case 141, and a filter air inlet 142 and a filter air outlet 143 are formed on one side and the other side of the filter case, respectively, and the filter air inlet 142 and the filter A filter 144 is provided between the air outlets 143 to adsorb and remove fine dust and airborne bacteria in the airflow.

The filter 144 provided between the filter air inlet 142 and the filter air outlet 143 can remove fine dust and airborne bacteria generated in an indoor living environment, and the filter is a rotary blade provided with it. Each may be the same or different, and a replaceable filter or a semi-permanent filter may be provided. As a specific example of the filter, a pre-filter, a medium filter, a HEPA filter, a ULPA filter, etc. may be used, and preferably a HEPA filter may be used, but is not limited thereto. By being included, it is possible to provide a function of removing toxic gases and various odors in the air.

A filter cover 145 having a shape through which an air flow can pass may be formed in the filter air outlet 143 , and the filter cover 145 may have a magnet or hinge attached to each of the filter case 141 and the filter cover. It is easy to open and close, so it is possible to easily check and replace the filter condition. The attachment form of the filter cover 145 is not limited thereto, and may be formed in the form of a known opening/closing member.

Figure 2 (a) is an exploded perspective view for explaining the rotary blade 120, the air flow convergence inducing member 130 and the filter unit 140 formed on the lower surface of the rotary blade as an example of the present invention, Figure 2 (b) is a perspective view of the combined form.

Referring to Figure 2 (a), the rotary blade 120 is a member that generates an airflow through rotation. The rotary blade 120 may be adopted without limitation as long as it has a shape capable of generating an airflow, and preferably a shape for easily generating an airflow and reducing air resistance aerodynamically during rotation may be adopted. , for example, a biomimetic shape representing the streamline shape of a shark body may be adopted.

As an example, the airflow convergence inducing member 130 and the filter unit 140 may be formed on the lower surface of the rotary blade 120 , and in detail, the airflow convergence inducing member 130 is the filter unit 140 . It may be formed in the filter case 141 . The airflow convergence inducing member 130 is for inducing that the airflow entering the filter air inlet 142 converges to the inside of the rotation radius without spreading outside the rotation radius. is composed

The airflow convergence inducing member 130 composed of the partition walls passes through the space and the flow direction of the airflow is guided to the inside rather than the outside of the rotation radius of the rotor, and then the filter air outlet ( 143) while being discharged from the trailing rotor blade may be easily introduced into the filter unit 140'.

Referring to FIG. 3 , the rotary blade 120 rotating in the clockwise direction and the airflow convergence inducing member 130 formed on the lower surface of the rotary blade act as a collision surface for the airflow entering the filter air inlet 142 . An external force is generated, and the external force causes the flow direction of the air flow to be directed inward rather than outwardly of the turning radius. As a result, the airflow flowing inside the turning radius is introduced into the filter 144' via the filter air inlet 142' of the trailing rotary blade 120', so that fine dust and airborne bacteria in the airflow are removed, and then the filter air It is discharged from the discharge port 143'.

According to the above-described effect of removing fine dust in the airflow by the sealing fan of the present invention, the airflow flowing into the filter air inlet 142 of the sealing fan of the present invention is induced in a direction converging to the rotation radius and then the trailing rotor blade 120') Since a series of processes flowing into the filter unit 140' of can

1 to 3, the airflow convergence inducing member 130 and the filter unit 140 are shown to be formed on the lower surface of the rotary blade, but as another example of the present invention, the airflow convergence inducing member 130 and The filter unit 140 may also be formed on the upper surface of the rotary blade 120 . However, since the airflow convergence inducing member 130 and the filter unit 140 are formed on the lower surface of the rotor blade, it is easy to access the sealing fan from the ground, so maintenance is easy, and the floating material is easily attached to the rotation blade 120 ) The cleaning of the upper surface is also easy, and the airflow convergence inducing member 130 is formed in the filter case 141, which is more preferable in that it can be protected from external impact.

As an example in which the airflow convergence inducing member 130 is formed on the lower surface of the rotary blade 120 , the airflow convergence inducing member 130 may be formed in the filter case 141 of the filter unit 140 , in detail It may be formed between the filter air inlet 142 which is the front part and the filter air outlet 143 which is the rear part. In this case, the airflow convergence inducing member 130 may be formed on the front part or the rear part of the filter 144 , preferably formed on the front part of the filter 144 to form the filter 144 in the filter case 141 . may serve to fix the filter air inlet 143 without being detached.

On the other hand, as another example in which the airflow convergence inducing member 130 is formed on the lower surface of the rotary blade 120, FIGS. 4(a) to 4 showing examples in which the airflow convergence inducing member 130 is formed. Referring to (e), the air flow convergence inducing member 130 may be formed on the whole or a part of the long side length ℓ of the rotary blade 120 indicated by 'ℓ' as shown in FIG. 4 . As a preferred example, the airflow convergence inducing member 130 may be formed over the entire length of the long side of the rotary blade 120 so as to exert an airflow convergence inducing effect over the entire rotary blade.

5 is (a) a plan view of the sealing fan 100 of the present invention viewed from above in order to explain the angle α of the airflow convergence inducing member 130 formed on the rotary blade 120, (b) on the rotary blade 120 It is a view for explaining the angle (β) of the formed air flow convergence inducing member (130).

The air flow convergence effect by the sealing fan of the present invention can be improved by taking the air flow convergence inducing member 130 into a specific angle α range in consideration of the area, height, wind direction conditions, etc. of the space where the sealing fan is installed. .

Referring to Figure 5 (a), the angle (α) between the concentric tangent line (a) of the hub 110 and the airflow convergence inducing member 130 (b) formed on the rotary blade 120 is 10 to 80 degrees, preferably 30 to 80 degrees. When the angle is less than 10 degrees, the airflow may be discharged from the filter air outlet 143 to the outside of the rotation radius, and when the angle exceeds 80 degrees, the airflow passing through the inside of the rotor blade is the air to the rotor blade. As it acts as a resistive force, the rotation speed of the rotor blades and the effect of removing fine dust can be reduced.

In addition, referring to FIG. 5B , the airflow convergence inducing member 130 may be formed at an angle β of 30 to 90 degrees with the rotary blade 120 . The angle (β) is when the vertical lines (c, d) are drawn from the line formed by contacting the airflow convergence inducing member 130 and the rotary blade 120 to the airflow convergence inducing member 130 and the rotary blade 120, respectively. It means the angle formed. When the airflow convergence inducing member 130 is formed at an angle β of less than 30 degrees, the area in which the airflow collides with the airflow convergence inducing member 130 is small, so that the airflow convergence effect may be reduced.

The airflow convergence inducing member 130 may be formed to have the same or different angles (α, β) as two or more independent partition walls. As an example, the angles (α, β) of the airflow convergence inducing member 130 may be the same or different for each rotary blade 120 , and as another example, the same or different within one rotary blade 120 . can do.

6 is (a) an example in which the air flow convergence auxiliary blade 150 is formed at the short edge of the rotary blade 120 and (b) a view showing the airflow convergence induction effect by the air flow convergence auxiliary blade 150. .

As an example of the present invention, in order to further improve the airflow convergence effect by the airflow convergence inducing member 130, the airflow convergence auxiliary wing 150 is selectively positioned on the edge of one side of the rotary blade 120 spaced apart from the hub 110. can be formed.

Referring to Figure 6 (a), the air flow convergence auxiliary wing 150, the air flow convergence auxiliary wing connecting portion 151 is formed, the air flow convergence auxiliary wing connecting portion 151 is a rotary blade spaced apart from the hub 110 ( 120) By being connected to the rotary blade connecting portion 121 formed at the edge of the short side, the air flow convergence auxiliary blade 150 and the rotary blade 120 are connected to each other.

Referring to FIG. 6( b ), the airflow convergence auxiliary wing 150 induces an airflow convergence inducing effect that occurs by acting as a collision surface to the airflow like the airflow convergence inducing member 130 . In detail, the external force is generated by acting as a collision surface on the flow of the airflow in the vicinity of the end edge spaced apart from the hub 110 of the rotating vane 120 which is brought into contact by the rotation of the rotating vane 120, and the external force is It causes the airflow to flow inward rather than outward. Therefore, by forming the airflow convergence auxiliary blade 150, the airflow convergence effect can be doubled than when only the airflow convergence inducing member 130 is formed, and the length of the rotary blade required to induce the same airflow convergence effect can be shortened. It has the effect of contributing to the miniaturization of the size of the ceiling fan.

On the other hand, in an embodiment of the present invention, the hub 110 of the ceiling fan 100 of the present invention has a wireless signal unit for generating a sound generating signal by sensing a radio signal on the inner side; and by detecting the sound generating signal on the outer side. It may include; a sound generating unit for generating a sound.

Since the hub 110 is provided with the wireless signal unit, when the user of the ceiling fan of the present invention generates a wireless signal from a wireless signal generating device using known wireless communication technologies such as Wi-Fi, Bluetooth, and Zigbee, the wireless signal unit detects it. to generate a sound generating signal. In addition, since the hub 110 is provided with a sound generating unit that generates a sound corresponding to the sound generating signal, the user can enjoy the sound desired to be heard for purposes such as entertainment, rest, and medical treatment through the hub 110 . and audible.

In addition, the hub 110 of the ceiling fan 100 of the present invention further comprises a; It is possible to generate a light source corresponding to the amplitude and frequency of the sound.

Since the hub 110 may further include a light source generator for generating a light source corresponding to the amplitude and frequency of the sound, the user of the ceiling fan of the present invention intends to create an atmosphere in the space in which the ceiling fan is installed by selecting the sound. can be changed to suit. The light emitting form of the generated light source may change color, brightness, and frequency in response to the amplitude and frequency of the sound generated by the sound generator, but is not limited thereto.

As described above, the present invention has been described with reference to the embodiments shown in the accompanying drawings, which are merely exemplary, and various modifications and equivalent other embodiments are possible by those of ordinary skill in the art. will understand that Therefore, the technical protection scope of the present invention should be defined by the following claims.

Hereinafter, the present invention will be described in more detail through Examples and Comparative Examples.

<Experimental Example 1> Evaluation of indoor fine dust reduction ability of a ceiling fan equipped with an air flow convergence inducing member and a filter unit according to the present invention

Example 1:

As shown in FIG. 1 , the sealing fan according to an embodiment of the present invention has a rotary blade including an airflow convergence inducing member and a filter unit. An airflow convergence inducing member having an angle (α) of 50 degrees and an angle (β) of 30 degrees with the tangent of a concentric circle centered on the hub is formed on the lower surface of the rotor blade, and a filter unit equipped with a HEPA filter is formed. installed. The sealing fan is operated at 145 RPM in a test chamber according to KACA-002 test apparatus 3.5 with a size of 3,500 mm × 2,500 mm × 3,000 mm, and 0.3 every 10 minutes from immediately before operation (0 minutes) to 120 minutes after operation. The number of fine dust particles having a size of μm was measured and shown in Table 1 and FIG. 7 .

In addition, 0 minutes and 120 minutes after the operation of the sealing fan, total suspended bacteria in the indoor air were collected using a collector equipped with a bacterial culture medium, and the concentration was measured. The sample collection flow rate using the collector is 250L or less of the total air collection volume. Table 2 shows the total airborne bacteria measurement results.

Comparative Example 1:

The amount of change in fine dust was measured by using a sealing fan configured in the same manner as in Example 1, except that a rotary blade having the same shape as the rotary blade of Example 1 was used, but a rotary blade not equipped with an airflow convergence inducing member was used. It was measured for each time and the results are shown in Table 1.

division Example 1 Comparative Example 1 uptime
(minute) Measured number of fine dust particles
(Unit: Number) Fine dust reduction rate (%) compared to the initial stage of operation (0 minutes) Measured number of fine dust particles
(Unit: Number) Fine dust reduction rate (%) compared to the initial stage of operation (0 minutes) 0 275,542 - 280,274 - 10 252,909 8.2% 265,491 5.3% 20 231,856 15.9% 245,359 12.5% 30 214,773 22.1% 231,282 17.5% 40 163,544 40.6% 225,647 19.5% 50 142,221 48.4% 215,687 23.0% 60 103,326 62.5% 209,865 25.1% 70 84,751 69.2% 195,325 30.3% 80 74,232 73.1% 189,582 32.4% 90 65,214 76.3% 176,652 37.0% 100 42,515 84.6% 169,965 39.4% 110 32,519 88.2% 160,854 42.6% 120 21,478 92.2% 152,766 45.5%

division Example 1 uptime
(minute) Total number of airborne bacteria measured
(Unit: CFU/m ³ ) Total airborne bacteria reduction rate compared to the beginning of operation (%) 0 1260 - 120 293 76.7%

100: sealing fan provided with air flow convergence inducing member and filter unit
110: hub
120, 120′: rotor blades
121: rotary blade coupling connection
130, 130′: Airflow convergence inducing member
140, 140′: filter unit
141: filter case
142, 142′: filter air inlet
143, 143′: filter air outlet
144 : filter
145: filter cover
150: air flow convergence auxiliary wing
151: air flow convergence auxiliary wing connection part

Claims (8)

As a sealing fan provided with an air flow convergence inducing member and a filter unit,
centrally located hub;
a rotary blade connected to the hub and generating an airflow through rotation;
an air flow convergence inducing member formed on the lower surface or upper surface of the rotary blade and guiding the airflow generated through the rotation of the rotary blade to converge within the rotation radius of the sealing fan rotary blade; and
Including; a filter unit provided on the rotary blade;
The airflow convergence inducing member is located on the front or rear side of the filter, and the airflow induced to converge within the rotation radius can easily flow into the filter.
According to claim 1,
The airflow convergence inducing member is a sealing fan provided with an airflow convergence inducing member and a filter, characterized in that formed on the whole or a part of the long side length of the rotary blade.
According to claim 1,
The airflow convergence inducing member formed on the lower surface or upper surface of the rotary blade is provided with an airflow convergence inducing member and a filter unit, characterized in that it is formed to have an angle (α) of 10 to 80 degrees with a tangent of a concentric circle centered on the hub. old sealing pan.
According to claim 1,
The filter unit includes a filter case, and a filter air inlet and a filter air outlet are respectively formed on one side and the other side of the filter case, and a filter capable of collecting fine dust in the airflow passing through the filter air inlet includes a filter air inlet and provided between the filter air outlets,
A sealing fan provided with an air flow convergence inducing member and a filter unit, characterized in that a filter cover is formed at the filter air outlet.
5. The method of claim 4,
The filter is a filter capable of removing fine dust and airborne bacteria generated in an indoor living environment, and the same or different filters can be installed and replaced.
According to claim 1,
A sealing fan provided with an air flow convergence inducing member and a filter unit, characterized in that the rotary blade has an air flow convergence auxiliary blade formed at an edge of one side spaced apart from the hub.
According to claim 1,
The hub has an airflow convergence inducing member comprising: a wireless signal unit generating a sound generating signal by sensing a radio signal at an inner side; and a sound generating unit generating a sound by sensing the sound generating signal at an outer side; A ceiling fan equipped with a filter unit.
8. The method of claim 7,
The hub further includes a light source generating unit for generating a light source by sensing the sound generated from the sound generating unit, wherein the light source generating unit generates a light source corresponding to the amplitude and frequency of the sound generated by the sound generating unit. A sealing fan provided with an airflow convergence inducing member and a filter unit.

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