KR20190101537A - Smart electric fan with dual fan - Google Patents

Abstract

The present invention relates to a smart electric fan with a dual fan, capable of realizing a function of an ordinary electric fan and a function of an air circulator. According to one embodiment of the present invention, the smart electric fan with a dual fan comprises: a support unit including a stand and a supporter vertically installed on the upper part of the stand; a housing unit detachably coupled to the support unit and rotated on the support unit; and a fan unit mounted in the housing and straightly discharging the air inducted from the rear side of the housing unit toward the front side of the housing unit to circulate the air.

Description

Smart Fan with Dual Fans {SMART ELECTRIC FAN WITH DUAL FAN}

Disclosed herein is a smart fan to which a double fan is applied, in particular, having a variable wing to ensure the straightness of the wind is possible to implement the function of the general electric fan and the air circulator easy to circulate the air, The air purifying function is possible through antibacterial and fine dust filtering, and it relates to a smart fan with a double fan equipped with multifunction and convenience considering the user's health.

Unless otherwise indicated herein, the contents described in this section are not prior art to the claims of this application, and inclusion in this section is not admitted to be prior art.

In general, a fan is a machine that generates wind by electricity used in homes or offices, and is mainly used in summer, and provides a cooling wind to the user or circulates indoor air through the wind generated by rotating the rotary blades.

The general configuration of the fan includes a body portion having various operation buttons, a vertical support shaft formed vertically on one side of the body portion, and a rotary blade installed on the vertical support shaft to supply wind. It consists of components.

In addition, a component of the fan is a rotary blade, a drive motor that is axially coupled to one side of the rotary blades to supply power according to the application of power, and the rotary blades so that the user is not injured by the rotary blades rotating at high speed. It consists of a safety net consisting of a steel rod enclosing shape.

The drive motor is installed inside the motor housing provided outside the safety net, and a neck joint is provided at the lower portion of the motor housing so that the left and right rotations of the component can be made, thereby controlling the wind direction.

Such a fan is largely classified into a wall-mounted fan that can be installed and used on a wall, and a stand-type fan that is mounted on the floor and is movable. Recently, a fan that does not apply a rotary wing has been developed and marketed.

Existing general electric fan as described above, even if the super breeze (surface wind) is sent at a low RPM, the air flow due to the fan is cut off, and the air is released in the air without considering the air quality. Because it blows, there is a feeling of generating unnatural wind.

In addition, since there is no air purification filter, the bad wind in the room is sent to the user as it is, the wind is not clean, and it may cause bronchial or asthma. It is disadvantageous in terms of strength and straightness.

In addition, the premium fan with excellent performance is mainly made by products of global companies abroad.In this case, as well as problems such as after-sales service, in terms of utilization of the fan, which is a seasonal product that is stored in a certain place, such as a warehouse, after the use time is over. Inefficient

1. Korean Patent Publication No. 10-2010-0124454 (2010.11.29)

2. Korean Registered Patent No. 10-1293593 (2013.07.31)

3. Korean Public Practice No. 20-2017-0002773 (2017.08.03)

It has a variable wing to secure the straightness of the wind, so it is possible to realize the function of a general fan and an air circulator that is easy to circulate the air, but it is possible to purify the air by antibacterial and fine dust filtering. It aims to provide a smart fan with dual fans equipped with convenience and convenience.

In order to increase the wind straightness, the case structure that can increase the pressure of air and the wing that induces the flow of wind will provide a smart fan with a double fan that can secure the wind straightness and blowing distance.

It is possible to secure the straightness of the wind, but to minimize the noise caused by the fan to provide a smart fan with a double fan that can be used in a comfortable environment.

It aims to provide a smart fan with a dual fan that minimizes the loss of strong wind and converts it into a soft wind so that the user can feel the stress and fatigue.

The air purifying function is designed to provide a smart fan with a double fan that is safe from the induction of bronchial or asthma, and does not reduce the strength or straightness of the wind caused by the filter even when using a purifying filter or a purifying net.

By implementing various functions, we will overcome the limitations of the season and at the same time, we will provide smart fan with double fan that is suitable as an emotional product without restriction on space and use environment with utilization as interior function through excellent design.

It aims to provide a smart fan that has a double fan structure capable of long-distance blowing but adopts a double fan of a fusion functional product that combines wind flow analysis, noise and vibration reduction technologies.

According to an embodiment, a support is formed in a place for use and a support is installed upright on the upper portion of the support, and detachably coupled to the support portion is mounted in the housing portion and the housing portion rotated in the support portion And a fan unit for flowing air sucked from the rear of the housing unit through the rotation to discharge the air sucked straight toward the front of the housing unit.

According to an embodiment, the support portion is a multi-joint form detachably provided.

According to an embodiment, the housing part is rotated and tilted up, down, left and right in the support part.

According to an embodiment, the fan portion has a forward and reverse double fan structure to impart straightness to the air flowing in the housing portion.

According to an embodiment, the fan unit may include a rear fan positioned inside an end side of the housing portion into which the air is introduced, and guides the air to flow therein, and the center of the rear fan may be coincident with the center of the rear fan. Located in the end side of the housing portion to be discharged is made of a front fan for inducing the air to be discharged.

According to an embodiment, the fan unit includes a filter for purifying or antibacterial and deodorizing air.

According to an embodiment, the filter is detachably coupled to the fan unit.

The smart fan with the double fan as described above has a variable wing to secure the straightness of the wind, so that the function of the general fan and the air circulator that is easy to circulate the air can be realized, but with antibacterial and fine dust filtering. The air purifying function is possible, which has the advantages of multi-functionality and convenience considering the user's health.

In order to increase the straightness of the wind through the case structure that can increase the pressure of the air and wings to guide the flow of the wind has the advantage of ensuring the wind straightness and blowing distance.

It is possible to secure the straightness of the wind, but can minimize the noise caused by the fan.

It has the advantage of minimizing the stress and fatigue felt by the human body by converting into soft wind while minimizing the loss of strong wind.

The air purifying function is safe from the induction of bronchial or asthma, and the use of a purifying filter or a purifying net has the advantage that the strength and straightness of the wind due to the filter are not reduced.

The implementation of various functions overcomes the limitations of the season and at the same time, it has an advantage with interior functions through excellent design and has an advantage as an emotional product without restrictions on space and use environment.

It has a double fan structure capable of long-distance blowing, but it is a converged functional product that combines wind flow analysis, noise and vibration reduction technologies. It has price competitiveness through its technical rigor and high value-added through superior exports and technological advantages. Has the advantage of.

1 is a smart fan to which a double fan according to an embodiment of the present disclosure.
FIG. 2 is a view for explaining a fan unit of the present disclosure shown in FIG. 1. FIG.
3 is an example of using a smart fan to which a double fan according to an embodiment of the present disclosure.
4 is a conceptual diagram of a smart fan to which a double fan according to an embodiment of the present disclosure.
Figure 5 is an example of using the fan shown in Figure 4 for the table.
Figure 6 is an example using the fan shown in Figure 4 as a decorative table.
7 is an example of using the fan shown in FIG. 4 as a simple table.
8 is a view for explaining the air flow of the fan shown in FIG.
9 is a view for explaining the internal housing of the fan shown in FIG.
10 is a view for explaining the structure of the fan shown in FIG.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and only the embodiments of the present invention make the disclosure of the present invention complete and the general knowledge in the technical field to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments of the present disclosure, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description thereof will be omitted. Terms to be described below are terms defined in consideration of functions in the embodiments of the present invention, and may vary according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

Smart fan with a double fan according to an embodiment of the present disclosure has a variable wing to ensure the straightness of the wind is possible to implement the function of the general fan and the air circulator easy to circulate the air, antibacterial and fine dust The air purifying function is possible by filtering, and it is a fan equipped with multi-function and convenience in consideration of user's health, and the city and reference about the construction and operation that can be easily understood by workers in this field such as fans, circulators, and motors should be brief or It will be omitted.

1 is a smart fan applying a double fan according to an embodiment of the present disclosure, Figure 2 is a view for explaining a fan of the present disclosure shown in Figure 1, Figure 3 is a smart fan applying a double fan according to an embodiment of the present disclosure Fan use example, Figure 4 is a conceptual diagram of a smart fan to which a double fan according to an embodiment of the present disclosure.

1 to 4, the smart fan to which the double fan according to the embodiment of the present disclosure is applied has a variable wing to secure the straightness of the wind, so that the function of the general fan and the air circulator are easy to circulate air. It is possible to implement, but the antibacterial and fine dust filtering is possible to the air purifying function with a multi-function and convenience in consideration of the user's health, the support 10, the housing 20, the fan 30 It consists of a configuration that includes.

The support 10 is composed of a pedestal 11 positioned at a place for use and a support 12 installed upright on an upper portion of the pedestal 11, and has a multi-joint shape detachably provided.

The support unit 10 may include a plurality of function keys (not shown) for operation and a screen unit (not shown) indicating an operation state by manipulation of the function keys on the pedestal 11.

The support portion 10 has a circular flat plate shape in which the pedestal 11 is seated on the ground of a place for use, and is provided in the form of a multi-joint having a rod-shaped shape in which the support 12 is installed upright in the center of the pedestal 11. And may have an approximately 'ㅗ' shape, but is not limited thereto.

Pedestal 11 of the support portion 10 is provided with the above-described function key and the screen portion commonly applied in the field of the fan to which the present disclosure belongs, the support 12 is provided with a multi-joint structure to freely change its shape, Any one selected from the pedestal 11 and the support 12 may be provided with a sensor to enable remote control by a remote controller.

Here, the support 12 of the present disclosure may be provided in a structure capable of detachable coupling through separation by having a form that can be separated up and down through the interference fit or screw fastening method at a predetermined position from the joint portion connected to have a multi-joint structure. In this case, as shown in FIG. 3, a general electric fan, a stand, and a table may be used, and when not in use, it may have an advantage of securing a space by attaching and detaching. At this time, the separated support 12 may be provided to be stored in the pedestal 12 is stored, of course.

Housing portion 20 is a cylindrical structure detachably coupled to the upper end of the support portion 10 is rotated and tilted up and down, left and right in the support portion (10). Since the housing part 20 of the present disclosure is tilted at the support part 10 and is rotated while being angularly converted, three-dimensional rotation is possible, so that a 3D three-dimensional rotation capable of freely using a user's satisfaction can be realized. do. In particular, since the support 12 mentioned above has a joint structure, more free angle conversion and rotation are possible, thereby making it more usable than conventional fans. Such, the 3D three-dimensional rotation by the housing unit 20 and the support unit 10 and the angle conversion and rotation according to the joint structure can be made automatically, which is easy to use by being remotely controlled by the aforementioned remote controller Can be maximized.

Here, the vertical, horizontal, left and right rotating and tilting structures of the housing part 20 of the present disclosure may be variously implemented through design changes in the fan field to which the present disclosure belongs, and thus, specific configurations and structures thereof are not limited or mentioned. .

Here, the housing unit 20 of the present disclosure may be provided in a number of different sizes, through which the fan of the present disclosure as shown in FIG. According to the purpose, it can be used to change the size according to its shape to give a sense of stability when using it, which can promote convenience and safety.

5 is an example using the fan shown in Figure 4 for the table, Figure 6 is an example using the fan shown in Figure 4 as a decorative table, Figure 7 is an example using the fan shown in Figure 4 as a simple table.

Such a housing portion 20 is provided in the interior of the outer cylindrical housing and the outer outer housing 21, which is detachable to the upper end of the support portion 10, as shown in Figs. It may have a structure of a double cylindrical body consisting of an inner housing 22 to induce.

The outer housing 21 forms an external shape of the smart fan to which the double fan of the present disclosure is applied, and may have a cylindrical shape in which the diameter gradually increases from the inflow side to which the air is introduced to the discharge side to which the air is discharged, but is not limited thereto. no.

As the outer housing 21 has a shape of a cross section whose diameter increases from the inlet side to the discharge side, the outer housing 21 not only has a shape that is easy to collect and discharge air, but also secures sufficient space to accommodate the inner housing 22 to be described later. As a decorative table or a simple table, it has a simple and efficient design to which stability against flow is applied. At this time, the pedestal 11 of the present disclosure may have a coupling form that is separated from the lower side support 12 and fastened to the front side of the housing part 20 by a screw fastening method or the like, thereby using the pedestal 11. It is also possible to use the housing part 20 as a decorative table, as shown in Fig. 6, with the housing part 20 facing the ground of the place, or vice versa, as the simple table as shown in Fig. 7.

According to the above, in the fan of the present disclosure, the housing part 20 is separated from the support part 10, and the support part 10 is separated from the support part 11 and the support part 12. The table can be used, such as to increase the utilization even when used in outdoor camping, such as wireless use.

The inner housing 22 is formed to have a diameter smaller than the inlet side through which the air is introduced, and the outlet side through which the air is discharged. In this case, the center side may be provided to be recessed in a streamlined shape toward the inside, and is limited thereto. It is not.

8 is a view for explaining the air flow of the fan shown in Figure 4, Figure 9 is a view for explaining the internal housing of the fan shown in FIG.

As shown in FIGS. 4 to 8, the inner housing 22 has air introduced therebetween, and the inlet side and the air discharged therefrom are connected to the discharge side and the inlet side and the discharge side corresponding to the front, respectively. It is divided into three subdivisions of the central side, and the subdivisions are formed in the shape of a "8" shaped mortar that is continuously connected in the longitudinal direction from the inlet side to the outlet side of the outer housing 21 and mounted inside. It can have

This means that the inner housing 22 has a shape of a "8" shaped mortar as described above, so that a relatively small amount of air is concentrated at the inlet side having a smaller diameter than the outlet side as shown in FIG. When passing through the center side, the inlet induces a decrease in speed due to the increase in air pressure through a narrow passage at the inlet at the center, and induces an increase in speed due to a decrease in pressure at the outlet at the center. As the diameter increases, the flow of air can be induced to expel relatively large amounts of air quickly.

As described above, as the inner housing 22 is formed with a throat section having a minimum area section in the center portion, as shown in FIG. 9, pressure and speed can be adjusted during the flow of air. Due to the aerodynamics through the Bernoulli principle, as a flow analysis is possible, the fan unit 30 to be described later will be described in more detail.

On the other hand, the inner housing 22 of the present disclosure as described above has a form of a "8" shaped mortar bat has an outer housing 21 located on the outside as the throat section is formed in the central area of the minimum area section is formed. A space may be formed between the inner and outer housings 22 and the outer housing 21. Thus, the inner space of the fan unit 30, which will be described later, may be utilized by utilizing the space of the inner and outer cylinders. The noise generated between the rear fan 31 and the front fan 32 can be absorbed by the air existing between the cylinders, which can be an efficient structure for reducing noise, and are not limited to the shape as described above. Of course, it can have a variety of shapes, such as a cylindrical shape.

In addition, although the housing part 20 of the present disclosure is not mentioned, the housing part 20 may be provided with an illumination function such as a mood light, thereby having an interior effect that can be used for reading or sleeping at night.

10 is a view for explaining the structure of the fan shown in FIG.

The fan unit 30 is rotatably mounted inside the housing unit 20, and has a double fan structure to impart straightness to the air flowing in the housing unit 20. Is flowed to discharge with straightness toward the front of the housing portion 20.

The fan unit 30 includes a rear fan 31 and a front fan 32 as shown in FIGS. 2 and 4 to 8.

The rear fan 31 is located inside the end side of the housing portion 20 into which air is introduced, thereby inducing air to be introduced rapidly.

The rear fan 31 is composed of a blade and a motor for rotating the blade, the blade is positioned facing the inflow side corresponding to the rear of the inner housing 22 of the housing portion 20.

The front fan 32 is centered on the concentric shaft with the center of the rear fan 31 and is located inside the end side of the housing part 20 through which air is discharged, and is connected to the housing part 20 through the rear fan 31. Increasing the flow rate of the rapidly introduced air leads to faster discharge.

This, the front fan 32 is composed of a wing and a motor as mentioned in the rear fan 31, the wing is positioned opposite to the rear fan 31 toward the discharge side, the rotation direction of the rear fan 31 Is rotated to match or vice versa.

The rear fan 31 and the front fan 32 according to the above are located in the inner housing 22 in the form of a "8" shaped mortar in the form of a double reversing motor for forward and reverse rotation, thereby making it easier to flow the air. It may have a structure that can be induced, which is the housing unit 20 is applied to the Bernoulli principle mentioned above is a double barrel in a circular tube structure that can amplify the strength of the wind by increasing the pressure of air to send the wind away With the structure of the circular cylinder, the inner cylinder is a circular cylinder with a throat-shaped nozzle structure to generate wind pressure, and the wind can be collected and sent by two rotating fans of the rear fan 31 and the front fan 32. To ensure that

As described above, the front fan 32 and the rear fan 31 of the present disclosure change the direction of rotation of the wind to increase the straightness and blowing distance of the wind. When the two fans rotate in the same direction, the wind There is a need for a guide blade 34 to be described later to change direction.

In this case, the smart fan to which the dual fan of the present disclosure is applied can also reduce the noise by controlling the direction of the wind. For this purpose, the rear fan 31 and the front fan 32 are illustrated in FIGS. 4 to 8 and 10. One guide wing 34 is located in the center of the cylinder, which is the center side of the inner housing 22 equipped with two fans of the fan, and the guide wing 34 forms a wind path and is generated in the two fans. Minimize the noise. To this end, the guide blade 34 of the present disclosure is preferably provided so that each of the plurality of wing units provided on the wings are axially rotated so as to rotate the direction of the wind, which is connected to the present disclosure. Since a variety of grafts can be configured in the field, a detailed description of the configuration will be omitted.

The rear fan 31 and the front fan 32 according to the above are preferably provided with a BLDC motor, but are not limited thereto, and the healthy wind may be provided as an air circulation device by securing the straightness of the wind through each fan. Optimal structure and visual design to match the fan is implemented can have the advantage that a large demand is generated by commercialization.

Meanwhile, the fan unit 30 of the present disclosure may further include a stability net 33 detachably coupled to an end at which the front fan 32 is located.

The safety net 33 is a honeycomb-type porous net of honeycomb structure to prevent the fingers or other objects from entering the fan to ensure the safety of the user and the accessories inside the fan, as well as the discharge The rough wind coming out of the side can make a soft and light wind through small gaps such as branches, leaves and petals.

Here, the stability net 33 of the present disclosure is described as being provided at the end side position where the front fan 32 is located, but is not limited to this, detachable to the end where the rear fan 31 is located, or both sides are provided It may be omitted.

In addition, although the safety net 33 of the present disclosure is shown in a convex form on the right side as shown in FIG. 10, this is the left side (rear) facing the front fan 32 as an example of illustration for clarity of the present disclosure. When coupled to the fan 32, it may be located in the convex form on the right) or may have a convex form on both the left and right sides, as well as the structure having the convex shape projecting outward as mentioned, as well as the concave recessed inward Obviously, it may have various shapes such as geometric shapes including shapes or straight lines and waves.

On the other hand, the fan unit 30 of the present disclosure further includes a filter 35 used for the purpose of purifying or antibacterial and deodorizing air at the end where the rear fan 31 is located as shown in FIGS. 2 and 10. It is also possible.

The filter 35 can purify the air to qualitatively clean the wind, deodorize to remove odors due to antibacterial, cooking, etc. to protect health from bacteria causing atopy, rhinitis and skin diseases. In addition to the function of the fan, it may have a function as various purifiers. At this time, the strength of the wind may be weakened by the installation of the filter 35, but the present disclosure does not have such a problem because it uses a double fan, and as mentioned above, through the throttle section of the inner housing 22 and the two fans. It is also possible to overcome this more easily.

Here, the filter 35 of the present disclosure is preferably provided as a hepa filter, but is not limited thereto. Known filters used for purification or antibacterial and deodorization may be variously applied according to the purpose of use, and the quantity thereof is not limited to one. Of course, it can be used as provided without overlapping form.

As described above, the filter 35 of the present disclosure is detachably coupled to the fan unit 30. The present disclosure provides a magnet (not shown) on a surface where the filter 35 and the fan unit 30 are in contact with each other. It can be equipped and detachable. At this time, the magnet is provided with a plurality of metal or rubber material selected, and the material and the combined form is limited, such as spaced apart from each other provided in the filter 35 and the fan unit 30 or provided as one strip form to be attached to each other. It can be combined in various ways. Of course, it is also possible that the filter 36 of the present disclosure provides convenience of use by easy and quick detachment through a magnet, but is not limited thereto, and various known techniques such as detachment and the like through a combination of a screw fastening method or an interference fit are provided. Of course, it can be grafted.

And, since the filter 35 of the present disclosure is to be separated from the fan unit 30, a place for storage is provided. The fan unit 30 of the present disclosure has an interior of the support unit 10, more precisely, a pedestal 11. It can be housed inside. Therefore, the separated filter 35 can be accommodated and stored inside the pedestal 11, and the selected filter can be taken out and used for selective purposes such as purification, antibacterial and deodorization, and coping with such loss. .

Meanwhile, although the filter 35 of the present disclosure is described and illustrated as being provided in the rear fan 31, the filter 35 may be provided in the front fan 32 or may be provided on both sides.

As described above, the smart fan to which the double fan of the present disclosure is applied includes two fans having a circular cylinder structure capable of applying a filter to make clean wind and increasing air pressure to increase wind straightness. It is provided. In addition, one fan functions as a fan that sucks air to guide the induction and suction, and after the air suction to guide the wind (34) to form a path of the wind to increase the air pressure while minimizing the noise generated from the fan, The other fan can draw and expel air more quickly, ensuring straightness and blowing distance. In addition, the guide vane 35 is located between the rear fan 31 and the front fan 32, and there is no gap between the guide vane 35 and the cylinder. It may have a shape of collecting and spreading. And, the noise generated between the fan and the fan by using the space of the outer housing 21 through the inner housing 22 of the double cylindrical body is absorbed into the air of the space existing between the cylinder to bring the efficiency of noise reduction The wind passing through the fan can have the effect of softening and evenly spreading the wind, such as "spring wind blowing in the spring" through the porous net.

The smart fan with the double fan as described above has a variable wing to secure the straightness of the wind, so that the function of the general fan and the air circulator that is easy to circulate the air can be realized, but with antibacterial and fine dust filtering. The air purifying function is possible, and it has the advantages of multi-functionality and convenience considering the health of the user, and the case structure that can increase the air pressure to increase the wind straightness and the wing that induces the flow of wind It has the advantage of securing the blowing distance, and it is possible to secure the straightness of the wind, but it can minimize the noise by the fan, so it can be used in a comfortable environment, and it converts into soft wind while minimizing the loss of strong wind. It has the advantage of minimizing the stress and fatigue felt by the human body. It is safe from the induction of bronchial or asthma through air purifying function, and the use of a purifying filter or purifying net does not reduce the strength or straightness of the wind due to the filter. It has the advantage of being suitable as an emotional product without restriction on space and environment due to its interior function through design, and it has a double fan structure that allows long-distance blowing, but it is a converged application of wind flow analysis, noise and vibration reduction technology. As a functional product, it has the price competitiveness through its technical rigor, and has the advantage of high value-added through increasing exports, as well as preoccupying technological advantage.

The disclosed contents are only examples, and various changes can be made by those skilled in the art without departing from the scope of the claims claimed in the claims, and therefore, the protection scope of the disclosed contents may be It is not limited to an Example.

10: support portion 11: stand
12: support 20: housing portion
21: external housing 22: internal housing
30: fan part 31: rear fan
32: front fan 33: stable net
34: guide wing

Claims (7)

A support made of a support positioned at a place for use and a support installed upright on an upper portion of the support;
A housing part detachably coupled to the support part and rotating at the support part; And
And a fan unit mounted inside the housing unit and configured to allow the air sucked from the rear of the housing unit to rotate so as to be discharged with a straightness toward the front of the housing unit through rotation.
The method according to claim 1,
The fan is a smart fan to which the double fan is applied, characterized in that the multi-joint form provided detachably.
The method according to claim 1,
The housing fan is a smart fan to which the dual fan is applied, characterized in that the support rotates up and down, left and right.
The method according to claim 1,
The fan unit is a smart fan with a double fan, characterized in that the dual fan structure of the forward and reverse rotation to impart a straightness to the air flowing in the housing portion.
The method according to claim 5, The fan unit,
A rear fan positioned inside the end side of the housing portion into which the air is introduced, leading to inflow of the air, and centered on the concentric axis with a center of the rear fan, and inside the end side of the housing portion through which the air is discharged; Smart fan with a double fan, characterized in that consisting of a front fan positioned to guide the air discharged.
The method according to claim 1,
The fan unit is a smart fan applying a double fan, characterized in that it comprises a filter for purification or antibacterial and deodorization of the air.
The method according to claim 6,
The filter is a smart fan applying a double fan, characterized in that detachably coupled to the fan.

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